1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/LangStandard.h" 22 #include "clang/Basic/ObjCRuntime.h" 23 #include "clang/Basic/Sanitizers.h" 24 #include "clang/Basic/SourceLocation.h" 25 #include "clang/Basic/TargetOptions.h" 26 #include "clang/Basic/Version.h" 27 #include "clang/Basic/Visibility.h" 28 #include "clang/Basic/XRayInstr.h" 29 #include "clang/Config/config.h" 30 #include "clang/Driver/Driver.h" 31 #include "clang/Driver/DriverDiagnostic.h" 32 #include "clang/Driver/Options.h" 33 #include "clang/Frontend/CommandLineSourceLoc.h" 34 #include "clang/Frontend/DependencyOutputOptions.h" 35 #include "clang/Frontend/FrontendDiagnostic.h" 36 #include "clang/Frontend/FrontendOptions.h" 37 #include "clang/Frontend/FrontendPluginRegistry.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/Utils.h" 41 #include "clang/Lex/HeaderSearchOptions.h" 42 #include "clang/Lex/PreprocessorOptions.h" 43 #include "clang/Sema/CodeCompleteOptions.h" 44 #include "clang/Serialization/ASTBitCodes.h" 45 #include "clang/Serialization/ModuleFileExtension.h" 46 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 47 #include "llvm/ADT/APInt.h" 48 #include "llvm/ADT/ArrayRef.h" 49 #include "llvm/ADT/CachedHashString.h" 50 #include "llvm/ADT/FloatingPointMode.h" 51 #include "llvm/ADT/Hashing.h" 52 #include "llvm/ADT/None.h" 53 #include "llvm/ADT/Optional.h" 54 #include "llvm/ADT/SmallString.h" 55 #include "llvm/ADT/SmallVector.h" 56 #include "llvm/ADT/StringRef.h" 57 #include "llvm/ADT/StringSwitch.h" 58 #include "llvm/ADT/Triple.h" 59 #include "llvm/ADT/Twine.h" 60 #include "llvm/IR/DebugInfoMetadata.h" 61 #include "llvm/Linker/Linker.h" 62 #include "llvm/MC/MCTargetOptions.h" 63 #include "llvm/Option/Arg.h" 64 #include "llvm/Option/ArgList.h" 65 #include "llvm/Option/OptSpecifier.h" 66 #include "llvm/Option/OptTable.h" 67 #include "llvm/Option/Option.h" 68 #include "llvm/ProfileData/InstrProfReader.h" 69 #include "llvm/Support/CodeGen.h" 70 #include "llvm/Support/Compiler.h" 71 #include "llvm/Support/Error.h" 72 #include "llvm/Support/ErrorHandling.h" 73 #include "llvm/Support/ErrorOr.h" 74 #include "llvm/Support/FileSystem.h" 75 #include "llvm/Support/Host.h" 76 #include "llvm/Support/MathExtras.h" 77 #include "llvm/Support/MemoryBuffer.h" 78 #include "llvm/Support/Path.h" 79 #include "llvm/Support/Process.h" 80 #include "llvm/Support/Regex.h" 81 #include "llvm/Support/VersionTuple.h" 82 #include "llvm/Support/VirtualFileSystem.h" 83 #include "llvm/Support/raw_ostream.h" 84 #include "llvm/Target/TargetOptions.h" 85 #include <algorithm> 86 #include <atomic> 87 #include <cassert> 88 #include <cstddef> 89 #include <cstring> 90 #include <memory> 91 #include <string> 92 #include <tuple> 93 #include <utility> 94 #include <vector> 95 96 using namespace clang; 97 using namespace driver; 98 using namespace options; 99 using namespace llvm::opt; 100 101 //===----------------------------------------------------------------------===// 102 // Initialization. 103 //===----------------------------------------------------------------------===// 104 105 CompilerInvocationBase::CompilerInvocationBase() 106 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 107 DiagnosticOpts(new DiagnosticOptions()), 108 HeaderSearchOpts(new HeaderSearchOptions()), 109 PreprocessorOpts(new PreprocessorOptions()) {} 110 111 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 112 : LangOpts(new LangOptions(*X.getLangOpts())), 113 TargetOpts(new TargetOptions(X.getTargetOpts())), 114 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 115 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 116 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 117 118 CompilerInvocationBase::~CompilerInvocationBase() = default; 119 120 //===----------------------------------------------------------------------===// 121 // Normalizers 122 //===----------------------------------------------------------------------===// 123 124 #define SIMPLE_ENUM_VALUE_TABLE 125 #include "clang/Driver/Options.inc" 126 #undef SIMPLE_ENUM_VALUE_TABLE 127 128 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 129 unsigned TableIndex, 130 const ArgList &Args, 131 DiagnosticsEngine &Diags) { 132 assert(TableIndex < SimpleEnumValueTablesSize); 133 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 134 135 auto *Arg = Args.getLastArg(Opt); 136 if (!Arg) 137 return None; 138 139 StringRef ArgValue = Arg->getValue(); 140 for (int I = 0, E = Table.Size; I != E; ++I) 141 if (ArgValue == Table.Table[I].Name) 142 return Table.Table[I].Value; 143 144 Diags.Report(diag::err_drv_invalid_value) 145 << Arg->getAsString(Args) << ArgValue; 146 return None; 147 } 148 149 static const char *denormalizeSimpleEnum(CompilerInvocation::StringAllocator SA, 150 unsigned TableIndex, unsigned Value) { 151 assert(TableIndex < SimpleEnumValueTablesSize); 152 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 153 for (int I = 0, E = Table.Size; I != E; ++I) 154 if (Value == Table.Table[I].Value) 155 return Table.Table[I].Name; 156 157 llvm_unreachable("The simple enum value was not correctly defined in " 158 "the tablegen option description"); 159 } 160 161 static const char *denormalizeString(CompilerInvocation::StringAllocator SA, 162 unsigned TableIndex, 163 const std::string &Value) { 164 return SA(Value); 165 } 166 167 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 168 const ArgList &Args, 169 DiagnosticsEngine &Diags) { 170 auto *Arg = Args.getLastArg(Opt); 171 if (!Arg) 172 return None; 173 return llvm::Triple::normalize(Arg->getValue()); 174 } 175 176 //===----------------------------------------------------------------------===// 177 // Deserialization (from args) 178 //===----------------------------------------------------------------------===// 179 180 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 181 DiagnosticsEngine &Diags) { 182 unsigned DefaultOpt = llvm::CodeGenOpt::None; 183 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 184 DefaultOpt = llvm::CodeGenOpt::Default; 185 186 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 187 if (A->getOption().matches(options::OPT_O0)) 188 return llvm::CodeGenOpt::None; 189 190 if (A->getOption().matches(options::OPT_Ofast)) 191 return llvm::CodeGenOpt::Aggressive; 192 193 assert(A->getOption().matches(options::OPT_O)); 194 195 StringRef S(A->getValue()); 196 if (S == "s" || S == "z") 197 return llvm::CodeGenOpt::Default; 198 199 if (S == "g") 200 return llvm::CodeGenOpt::Less; 201 202 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 203 } 204 205 return DefaultOpt; 206 } 207 208 static unsigned getOptimizationLevelSize(ArgList &Args) { 209 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 210 if (A->getOption().matches(options::OPT_O)) { 211 switch (A->getValue()[0]) { 212 default: 213 return 0; 214 case 's': 215 return 1; 216 case 'z': 217 return 2; 218 } 219 } 220 } 221 return 0; 222 } 223 224 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 225 OptSpecifier GroupWithValue, 226 std::vector<std::string> &Diagnostics) { 227 for (auto *A : Args.filtered(Group)) { 228 if (A->getOption().getKind() == Option::FlagClass) { 229 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 230 // its name (minus the "W" or "R" at the beginning) to the warning list. 231 Diagnostics.push_back( 232 std::string(A->getOption().getName().drop_front(1))); 233 } else if (A->getOption().matches(GroupWithValue)) { 234 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 235 Diagnostics.push_back( 236 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 237 } else { 238 // Otherwise, add its value (for OPT_W_Joined and similar). 239 for (const auto *Arg : A->getValues()) 240 Diagnostics.emplace_back(Arg); 241 } 242 } 243 } 244 245 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 246 // it won't verify the input. 247 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 248 DiagnosticsEngine *Diags); 249 250 static void getAllNoBuiltinFuncValues(ArgList &Args, 251 std::vector<std::string> &Funcs) { 252 SmallVector<const char *, 8> Values; 253 for (const auto &Arg : Args) { 254 const Option &O = Arg->getOption(); 255 if (O.matches(options::OPT_fno_builtin_)) { 256 const char *FuncName = Arg->getValue(); 257 if (Builtin::Context::isBuiltinFunc(FuncName)) 258 Values.push_back(FuncName); 259 } 260 } 261 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 262 } 263 264 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 265 DiagnosticsEngine &Diags) { 266 bool Success = true; 267 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 268 StringRef Name = A->getValue(); 269 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 270 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 271 .Case(CMDFLAG, NAME##Model) 272 #include "clang/StaticAnalyzer/Core/Analyses.def" 273 .Default(NumStores); 274 if (Value == NumStores) { 275 Diags.Report(diag::err_drv_invalid_value) 276 << A->getAsString(Args) << Name; 277 Success = false; 278 } else { 279 Opts.AnalysisStoreOpt = Value; 280 } 281 } 282 283 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 284 StringRef Name = A->getValue(); 285 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 286 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 287 .Case(CMDFLAG, NAME##Model) 288 #include "clang/StaticAnalyzer/Core/Analyses.def" 289 .Default(NumConstraints); 290 if (Value == NumConstraints) { 291 Diags.Report(diag::err_drv_invalid_value) 292 << A->getAsString(Args) << Name; 293 Success = false; 294 } else { 295 Opts.AnalysisConstraintsOpt = Value; 296 } 297 } 298 299 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 300 StringRef Name = A->getValue(); 301 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 302 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 303 .Case(CMDFLAG, PD_##NAME) 304 #include "clang/StaticAnalyzer/Core/Analyses.def" 305 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 306 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 307 Diags.Report(diag::err_drv_invalid_value) 308 << A->getAsString(Args) << Name; 309 Success = false; 310 } else { 311 Opts.AnalysisDiagOpt = Value; 312 } 313 } 314 315 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 316 StringRef Name = A->getValue(); 317 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 318 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 319 .Case(CMDFLAG, NAME) 320 #include "clang/StaticAnalyzer/Core/Analyses.def" 321 .Default(NumPurgeModes); 322 if (Value == NumPurgeModes) { 323 Diags.Report(diag::err_drv_invalid_value) 324 << A->getAsString(Args) << Name; 325 Success = false; 326 } else { 327 Opts.AnalysisPurgeOpt = Value; 328 } 329 } 330 331 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 332 StringRef Name = A->getValue(); 333 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 334 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 335 .Case(CMDFLAG, NAME) 336 #include "clang/StaticAnalyzer/Core/Analyses.def" 337 .Default(NumInliningModes); 338 if (Value == NumInliningModes) { 339 Diags.Report(diag::err_drv_invalid_value) 340 << A->getAsString(Args) << Name; 341 Success = false; 342 } else { 343 Opts.InliningMode = Value; 344 } 345 } 346 347 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 348 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 349 Opts.ShowCheckerHelpDeveloper = 350 Args.hasArg(OPT_analyzer_checker_help_developer); 351 352 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 353 Opts.ShowCheckerOptionAlphaList = 354 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 355 Opts.ShowCheckerOptionDeveloperList = 356 Args.hasArg(OPT_analyzer_checker_option_help_developer); 357 358 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 359 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 360 Opts.ShouldEmitErrorsOnInvalidConfigValue = 361 /* negated */!llvm::StringSwitch<bool>( 362 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 363 .Case("true", true) 364 .Case("false", false) 365 .Default(false); 366 Opts.DisableAllCheckers = Args.hasArg(OPT_analyzer_disable_all_checks); 367 368 Opts.visualizeExplodedGraphWithGraphViz = 369 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 370 Opts.DumpExplodedGraphTo = 371 std::string(Args.getLastArgValue(OPT_analyzer_dump_egraph)); 372 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 373 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 374 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 375 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 376 Opts.AnalyzeNestedBlocks = 377 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 378 Opts.AnalyzeSpecificFunction = 379 std::string(Args.getLastArgValue(OPT_analyze_function)); 380 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 381 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 382 Opts.maxBlockVisitOnPath = 383 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 384 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 385 Opts.InlineMaxStackDepth = 386 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 387 Opts.InlineMaxStackDepth, Diags); 388 389 Opts.CheckersAndPackages.clear(); 390 for (const Arg *A : 391 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 392 A->claim(); 393 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 394 // We can have a list of comma separated checker names, e.g: 395 // '-analyzer-checker=cocoa,unix' 396 StringRef CheckerAndPackageList = A->getValue(); 397 SmallVector<StringRef, 16> CheckersAndPackages; 398 CheckerAndPackageList.split(CheckersAndPackages, ","); 399 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 400 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 401 IsEnabled); 402 } 403 404 // Go through the analyzer configuration options. 405 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 406 407 // We can have a list of comma separated config names, e.g: 408 // '-analyzer-config key1=val1,key2=val2' 409 StringRef configList = A->getValue(); 410 SmallVector<StringRef, 4> configVals; 411 configList.split(configVals, ","); 412 for (const auto &configVal : configVals) { 413 StringRef key, val; 414 std::tie(key, val) = configVal.split("="); 415 if (val.empty()) { 416 Diags.Report(SourceLocation(), 417 diag::err_analyzer_config_no_value) << configVal; 418 Success = false; 419 break; 420 } 421 if (val.find('=') != StringRef::npos) { 422 Diags.Report(SourceLocation(), 423 diag::err_analyzer_config_multiple_values) 424 << configVal; 425 Success = false; 426 break; 427 } 428 429 // TODO: Check checker options too, possibly in CheckerRegistry. 430 // Leave unknown non-checker configs unclaimed. 431 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 432 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 433 Diags.Report(diag::err_analyzer_config_unknown) << key; 434 continue; 435 } 436 437 A->claim(); 438 Opts.Config[key] = std::string(val); 439 } 440 } 441 442 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 443 parseAnalyzerConfigs(Opts, &Diags); 444 else 445 parseAnalyzerConfigs(Opts, nullptr); 446 447 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 448 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 449 if (i != 0) 450 os << " "; 451 os << Args.getArgString(i); 452 } 453 os.flush(); 454 455 return Success; 456 } 457 458 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 459 StringRef OptionName, StringRef DefaultVal) { 460 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 461 } 462 463 static void initOption(AnalyzerOptions::ConfigTable &Config, 464 DiagnosticsEngine *Diags, 465 StringRef &OptionField, StringRef Name, 466 StringRef DefaultVal) { 467 // String options may be known to invalid (e.g. if the expected string is a 468 // file name, but the file does not exist), those will have to be checked in 469 // parseConfigs. 470 OptionField = getStringOption(Config, Name, DefaultVal); 471 } 472 473 static void initOption(AnalyzerOptions::ConfigTable &Config, 474 DiagnosticsEngine *Diags, 475 bool &OptionField, StringRef Name, bool DefaultVal) { 476 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 477 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 478 .Case("true", true) 479 .Case("false", false) 480 .Default(None); 481 482 if (!PossiblyInvalidVal) { 483 if (Diags) 484 Diags->Report(diag::err_analyzer_config_invalid_input) 485 << Name << "a boolean"; 486 else 487 OptionField = DefaultVal; 488 } else 489 OptionField = PossiblyInvalidVal.getValue(); 490 } 491 492 static void initOption(AnalyzerOptions::ConfigTable &Config, 493 DiagnosticsEngine *Diags, 494 unsigned &OptionField, StringRef Name, 495 unsigned DefaultVal) { 496 497 OptionField = DefaultVal; 498 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 499 .getAsInteger(0, OptionField); 500 if (Diags && HasFailed) 501 Diags->Report(diag::err_analyzer_config_invalid_input) 502 << Name << "an unsigned"; 503 } 504 505 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 506 DiagnosticsEngine *Diags) { 507 // TODO: There's no need to store the entire configtable, it'd be plenty 508 // enough tostore checker options. 509 510 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 511 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 512 513 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 514 SHALLOW_VAL, DEEP_VAL) \ 515 switch (AnOpts.getUserMode()) { \ 516 case UMK_Shallow: \ 517 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 518 break; \ 519 case UMK_Deep: \ 520 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 521 break; \ 522 } \ 523 524 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 525 #undef ANALYZER_OPTION 526 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 527 528 // At this point, AnalyzerOptions is configured. Let's validate some options. 529 530 // FIXME: Here we try to validate the silenced checkers or packages are valid. 531 // The current approach only validates the registered checkers which does not 532 // contain the runtime enabled checkers and optimally we would validate both. 533 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 534 std::vector<StringRef> Checkers = 535 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 536 std::vector<StringRef> Packages = 537 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 538 539 SmallVector<StringRef, 16> CheckersAndPackages; 540 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 541 542 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 543 if (Diags) { 544 bool IsChecker = CheckerOrPackage.contains('.'); 545 bool IsValidName = 546 IsChecker 547 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 548 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 549 550 if (!IsValidName) 551 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 552 << CheckerOrPackage; 553 } 554 555 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 556 } 557 } 558 559 if (!Diags) 560 return; 561 562 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 563 Diags->Report(diag::err_analyzer_config_invalid_input) 564 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 565 566 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 567 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 568 << "a filename"; 569 570 if (!AnOpts.ModelPath.empty() && 571 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 572 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 573 << "a filename"; 574 } 575 576 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 577 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 578 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 579 return true; 580 } 581 582 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 583 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 584 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 585 } 586 587 /// Create a new Regex instance out of the string value in \p RpassArg. 588 /// It returns a pointer to the newly generated Regex instance. 589 static std::shared_ptr<llvm::Regex> 590 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 591 Arg *RpassArg) { 592 StringRef Val = RpassArg->getValue(); 593 std::string RegexError; 594 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 595 if (!Pattern->isValid(RegexError)) { 596 Diags.Report(diag::err_drv_optimization_remark_pattern) 597 << RegexError << RpassArg->getAsString(Args); 598 Pattern.reset(); 599 } 600 return Pattern; 601 } 602 603 static bool parseDiagnosticLevelMask(StringRef FlagName, 604 const std::vector<std::string> &Levels, 605 DiagnosticsEngine *Diags, 606 DiagnosticLevelMask &M) { 607 bool Success = true; 608 for (const auto &Level : Levels) { 609 DiagnosticLevelMask const PM = 610 llvm::StringSwitch<DiagnosticLevelMask>(Level) 611 .Case("note", DiagnosticLevelMask::Note) 612 .Case("remark", DiagnosticLevelMask::Remark) 613 .Case("warning", DiagnosticLevelMask::Warning) 614 .Case("error", DiagnosticLevelMask::Error) 615 .Default(DiagnosticLevelMask::None); 616 if (PM == DiagnosticLevelMask::None) { 617 Success = false; 618 if (Diags) 619 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 620 } 621 M = M | PM; 622 } 623 return Success; 624 } 625 626 static void parseSanitizerKinds(StringRef FlagName, 627 const std::vector<std::string> &Sanitizers, 628 DiagnosticsEngine &Diags, SanitizerSet &S) { 629 for (const auto &Sanitizer : Sanitizers) { 630 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 631 if (K == SanitizerMask()) 632 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 633 else 634 S.set(K, true); 635 } 636 } 637 638 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 639 ArgList &Args, DiagnosticsEngine &D, 640 XRayInstrSet &S) { 641 llvm::SmallVector<StringRef, 2> BundleParts; 642 llvm::SplitString(Bundle, BundleParts, ","); 643 for (const auto &B : BundleParts) { 644 auto Mask = parseXRayInstrValue(B); 645 if (Mask == XRayInstrKind::None) 646 if (B != "none") 647 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 648 else 649 S.Mask = Mask; 650 else if (Mask == XRayInstrKind::All) 651 S.Mask = Mask; 652 else 653 S.set(Mask, true); 654 } 655 } 656 657 // Set the profile kind for fprofile-instrument. 658 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 659 DiagnosticsEngine &Diags) { 660 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 661 if (A == nullptr) 662 return; 663 StringRef S = A->getValue(); 664 unsigned I = llvm::StringSwitch<unsigned>(S) 665 .Case("none", CodeGenOptions::ProfileNone) 666 .Case("clang", CodeGenOptions::ProfileClangInstr) 667 .Case("llvm", CodeGenOptions::ProfileIRInstr) 668 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 669 .Default(~0U); 670 if (I == ~0U) { 671 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 672 << S; 673 return; 674 } 675 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 676 Opts.setProfileInstr(Instrumentor); 677 } 678 679 // Set the profile kind using fprofile-instrument-use-path. 680 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 681 const Twine &ProfileName) { 682 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 683 // In error, return silently and let Clang PGOUse report the error message. 684 if (auto E = ReaderOrErr.takeError()) { 685 llvm::consumeError(std::move(E)); 686 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 687 return; 688 } 689 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 690 std::move(ReaderOrErr.get()); 691 if (PGOReader->isIRLevelProfile()) { 692 if (PGOReader->hasCSIRLevelProfile()) 693 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 694 else 695 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 696 } else 697 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 698 } 699 700 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 701 DiagnosticsEngine &Diags, 702 const TargetOptions &TargetOpts, 703 const FrontendOptions &FrontendOpts) { 704 bool Success = true; 705 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 706 707 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 708 // TODO: This could be done in Driver 709 unsigned MaxOptLevel = 3; 710 if (OptimizationLevel > MaxOptLevel) { 711 // If the optimization level is not supported, fall back on the default 712 // optimization 713 Diags.Report(diag::warn_drv_optimization_value) 714 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 715 OptimizationLevel = MaxOptLevel; 716 } 717 Opts.OptimizationLevel = OptimizationLevel; 718 719 // At O0 we want to fully disable inlining outside of cases marked with 720 // 'alwaysinline' that are required for correctness. 721 Opts.setInlining((Opts.OptimizationLevel == 0) 722 ? CodeGenOptions::OnlyAlwaysInlining 723 : CodeGenOptions::NormalInlining); 724 // Explicit inlining flags can disable some or all inlining even at 725 // optimization levels above zero. 726 if (Arg *InlineArg = Args.getLastArg( 727 options::OPT_finline_functions, options::OPT_finline_hint_functions, 728 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 729 if (Opts.OptimizationLevel > 0) { 730 const Option &InlineOpt = InlineArg->getOption(); 731 if (InlineOpt.matches(options::OPT_finline_functions)) 732 Opts.setInlining(CodeGenOptions::NormalInlining); 733 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 734 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 735 else 736 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 737 } 738 } 739 740 Opts.ExperimentalNewPassManager = Args.hasFlag( 741 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 742 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 743 744 Opts.DebugPassManager = 745 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 746 /* Default */ false); 747 748 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 749 StringRef Name = A->getValue(); 750 if (Name == "Accelerate") 751 Opts.setVecLib(CodeGenOptions::Accelerate); 752 else if (Name == "MASSV") 753 Opts.setVecLib(CodeGenOptions::MASSV); 754 else if (Name == "SVML") 755 Opts.setVecLib(CodeGenOptions::SVML); 756 else if (Name == "none") 757 Opts.setVecLib(CodeGenOptions::NoLibrary); 758 else 759 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 760 } 761 762 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 763 unsigned Val = 764 llvm::StringSwitch<unsigned>(A->getValue()) 765 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 766 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 767 .Case("constructor", codegenoptions::DebugInfoConstructor) 768 .Case("limited", codegenoptions::LimitedDebugInfo) 769 .Case("standalone", codegenoptions::FullDebugInfo) 770 .Case("unused-types", codegenoptions::UnusedTypeInfo) 771 .Default(~0U); 772 if (Val == ~0U) 773 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 774 << A->getValue(); 775 else 776 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 777 } 778 // If -fuse-ctor-homing is set and limited debug info is already on, then use 779 // constructor homing. 780 if (Args.getLastArg(OPT_fuse_ctor_homing)) 781 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 782 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 783 784 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 785 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 786 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 787 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 788 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 789 .Default(~0U); 790 if (Val == ~0U) 791 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 792 << A->getValue(); 793 else 794 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 795 } 796 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 797 Opts.DebugColumnInfo = !Args.hasArg(OPT_gno_column_info); 798 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 799 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 800 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 801 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 802 Opts.VirtualFunctionElimination = 803 Args.hasArg(OPT_fvirtual_function_elimination); 804 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 805 Opts.SplitDwarfFile = std::string(Args.getLastArgValue(OPT_split_dwarf_file)); 806 Opts.SplitDwarfOutput = 807 std::string(Args.getLastArgValue(OPT_split_dwarf_output)); 808 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 809 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 810 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 811 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 812 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 813 Opts.ForceDwarfFrameSection = Args.hasArg(OPT_fforce_dwarf_frame); 814 815 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 816 auto Split = StringRef(Arg).split('='); 817 Opts.DebugPrefixMap.insert( 818 {std::string(Split.first), std::string(Split.second)}); 819 } 820 821 if (const Arg *A = 822 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 823 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 824 825 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 826 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 827 828 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 829 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 830 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 831 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 832 833 llvm::Triple T(TargetOpts.Triple); 834 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 835 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 836 Opts.EmitCallSiteInfo = true; 837 838 Opts.ValueTrackingVariableLocations = 839 Args.hasArg(OPT_fexperimental_debug_variable_locations); 840 841 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 842 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 843 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 844 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 845 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 846 OPT_fuse_register_sized_bitfield_access); 847 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 848 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 849 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 850 Args.hasArg(OPT_new_struct_path_tbaa); 851 Opts.FineGrainedBitfieldAccesses = 852 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 853 OPT_fno_fine_grained_bitfield_accesses, false); 854 Opts.DwarfDebugFlags = 855 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 856 Opts.RecordCommandLine = 857 std::string(Args.getLastArgValue(OPT_record_command_line)); 858 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 859 Opts.NoCommon = !Args.hasArg(OPT_fcommon); 860 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables); 861 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 862 Opts.OptimizeSize = getOptimizationLevelSize(Args); 863 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 864 Args.hasArg(OPT_ffreestanding)); 865 if (Opts.SimplifyLibCalls) 866 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 867 Opts.UnrollLoops = 868 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 869 (Opts.OptimizationLevel > 1)); 870 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 871 872 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 873 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 874 Opts.SampleProfileFile = 875 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 876 Opts.DebugInfoForProfiling = Args.hasFlag( 877 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 878 Opts.DebugNameTable = static_cast<unsigned>( 879 Args.hasArg(OPT_ggnu_pubnames) 880 ? llvm::DICompileUnit::DebugNameTableKind::GNU 881 : Args.hasArg(OPT_gpubnames) 882 ? llvm::DICompileUnit::DebugNameTableKind::Default 883 : llvm::DICompileUnit::DebugNameTableKind::None); 884 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 885 886 setPGOInstrumentor(Opts, Args, Diags); 887 Opts.InstrProfileOutput = 888 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 889 Opts.ProfileInstrumentUsePath = 890 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 891 if (!Opts.ProfileInstrumentUsePath.empty()) 892 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 893 Opts.ProfileRemappingFile = 894 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 895 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 896 Diags.Report(diag::err_drv_argument_only_allowed_with) 897 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 898 << "-fexperimental-new-pass-manager"; 899 } 900 901 Opts.CoverageMapping = 902 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 903 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 904 Opts.AsmVerbose = !Args.hasArg(OPT_fno_verbose_asm); 905 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 906 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 907 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 908 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 909 Opts.RegisterGlobalDtorsWithAtExit = 910 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 911 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 912 Opts.CodeModel = TargetOpts.CodeModel; 913 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 914 915 // Handle -mframe-pointer option. 916 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 917 CodeGenOptions::FramePointerKind FP; 918 StringRef Name = A->getValue(); 919 bool ValidFP = true; 920 if (Name == "none") 921 FP = CodeGenOptions::FramePointerKind::None; 922 else if (Name == "non-leaf") 923 FP = CodeGenOptions::FramePointerKind::NonLeaf; 924 else if (Name == "all") 925 FP = CodeGenOptions::FramePointerKind::All; 926 else { 927 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 928 Success = false; 929 ValidFP = false; 930 } 931 if (ValidFP) 932 Opts.setFramePointer(FP); 933 } 934 935 Opts.DisableFree = Args.hasArg(OPT_disable_free); 936 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 937 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 938 Opts.NoEscapingBlockTailCalls = 939 Args.hasArg(OPT_fno_escaping_block_tail_calls); 940 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 941 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 942 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 943 Args.hasArg(OPT_cl_fast_relaxed_math); 944 Opts.LimitFloatPrecision = 945 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 946 Opts.CorrectlyRoundedDivSqrt = 947 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 948 Opts.UniformWGSize = 949 Args.hasArg(OPT_cl_uniform_work_group_size); 950 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 951 Opts.StrictFloatCastOverflow = 952 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 953 954 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_fno_zero_initialized_in_bss); 955 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 956 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 957 Opts.SmallDataLimit = 958 getLastArgIntValue(Args, OPT_msmall_data_limit, 0, Diags); 959 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 960 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 961 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 962 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 963 Opts.IncrementalLinkerCompatible = 964 Args.hasArg(OPT_mincremental_linker_compatible); 965 Opts.PIECopyRelocations = 966 Args.hasArg(OPT_mpie_copy_relocations); 967 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 968 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 969 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 970 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 971 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 972 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 973 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 974 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 975 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 976 Opts.ThreadModel = 977 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 978 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 979 Diags.Report(diag::err_drv_invalid_value) 980 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 981 << Opts.ThreadModel; 982 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 983 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 984 985 Opts.BBSections = 986 std::string(Args.getLastArgValue(OPT_fbasic_block_sections_EQ, "none")); 987 988 // Basic Block Sections implies Function Sections. 989 Opts.FunctionSections = 990 Args.hasArg(OPT_ffunction_sections) || 991 (Opts.BBSections != "none" && Opts.BBSections != "labels"); 992 993 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 994 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 995 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 996 Opts.UniqueBasicBlockSectionNames = 997 Args.hasArg(OPT_funique_basic_block_section_names); 998 Opts.UniqueInternalLinkageNames = 999 Args.hasArg(OPT_funique_internal_linkage_names); 1000 1001 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 1002 1003 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 1004 1005 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 1006 1007 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 1008 1009 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1010 Opts.PrepareForThinLTO = false; 1011 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1012 StringRef S = A->getValue(); 1013 if (S == "thin") 1014 Opts.PrepareForThinLTO = true; 1015 else if (S != "full") 1016 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1017 } 1018 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 1019 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 1020 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1021 if (IK.getLanguage() != Language::LLVM_IR) 1022 Diags.Report(diag::err_drv_argument_only_allowed_with) 1023 << A->getAsString(Args) << "-x ir"; 1024 Opts.ThinLTOIndexFile = 1025 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1026 } 1027 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1028 Opts.SaveTempsFilePrefix = 1029 llvm::StringSwitch<std::string>(A->getValue()) 1030 .Case("obj", FrontendOpts.OutputFile) 1031 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 1032 1033 Opts.ThinLinkBitcodeFile = 1034 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 1035 1036 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 1037 1038 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 1039 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 1040 1041 Opts.PreferVectorWidth = 1042 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1043 1044 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1045 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1046 1047 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1048 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1049 1050 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 1051 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1052 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1053 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1054 Opts.CoverageDataFile = 1055 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1056 Opts.CoverageNotesFile = 1057 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1058 Opts.ProfileFilterFiles = 1059 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1060 Opts.ProfileExcludeFiles = 1061 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1062 if (Args.hasArg(OPT_coverage_version_EQ)) { 1063 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1064 if (CoverageVersion.size() != 4) { 1065 Diags.Report(diag::err_drv_invalid_value) 1066 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1067 << CoverageVersion; 1068 } else { 1069 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1070 } 1071 } 1072 } 1073 // Handle -fembed-bitcode option. 1074 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1075 StringRef Name = A->getValue(); 1076 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1077 .Case("off", CodeGenOptions::Embed_Off) 1078 .Case("all", CodeGenOptions::Embed_All) 1079 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1080 .Case("marker", CodeGenOptions::Embed_Marker) 1081 .Default(~0U); 1082 if (Model == ~0U) { 1083 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1084 Success = false; 1085 } else 1086 Opts.setEmbedBitcode( 1087 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1088 } 1089 // FIXME: For backend options that are not yet recorded as function 1090 // attributes in the IR, keep track of them so we can embed them in a 1091 // separate data section and use them when building the bitcode. 1092 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1093 for (const auto &A : Args) { 1094 // Do not encode output and input. 1095 if (A->getOption().getID() == options::OPT_o || 1096 A->getOption().getID() == options::OPT_INPUT || 1097 A->getOption().getID() == options::OPT_x || 1098 A->getOption().getID() == options::OPT_fembed_bitcode || 1099 A->getOption().matches(options::OPT_W_Group)) 1100 continue; 1101 ArgStringList ASL; 1102 A->render(Args, ASL); 1103 for (const auto &arg : ASL) { 1104 StringRef ArgStr(arg); 1105 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1106 // using \00 to separate each commandline options. 1107 Opts.CmdArgs.push_back('\0'); 1108 } 1109 } 1110 } 1111 1112 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1113 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1114 Opts.InstrumentFunctionsAfterInlining = 1115 Args.hasArg(OPT_finstrument_functions_after_inlining); 1116 Opts.InstrumentFunctionEntryBare = 1117 Args.hasArg(OPT_finstrument_function_entry_bare); 1118 1119 Opts.XRayInstrumentFunctions = 1120 Args.hasArg(OPT_fxray_instrument); 1121 Opts.XRayAlwaysEmitCustomEvents = 1122 Args.hasArg(OPT_fxray_always_emit_customevents); 1123 Opts.XRayAlwaysEmitTypedEvents = 1124 Args.hasArg(OPT_fxray_always_emit_typedevents); 1125 Opts.XRayInstructionThreshold = 1126 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1127 Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops); 1128 Opts.XRayOmitFunctionIndex = Args.hasArg(OPT_fno_xray_function_index); 1129 1130 auto XRayInstrBundles = 1131 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1132 if (XRayInstrBundles.empty()) 1133 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1134 else 1135 for (const auto &A : XRayInstrBundles) 1136 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1137 Diags, Opts.XRayInstrumentationBundle); 1138 1139 Opts.PatchableFunctionEntryCount = 1140 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1141 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1142 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1143 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1144 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1145 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1146 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1147 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1148 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1149 1150 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1151 StringRef Name = A->getValue(); 1152 if (Name == "full") { 1153 Opts.CFProtectionReturn = 1; 1154 Opts.CFProtectionBranch = 1; 1155 } else if (Name == "return") 1156 Opts.CFProtectionReturn = 1; 1157 else if (Name == "branch") 1158 Opts.CFProtectionBranch = 1; 1159 else if (Name != "none") { 1160 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1161 Success = false; 1162 } 1163 } 1164 1165 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1166 OPT_compress_debug_sections_EQ)) { 1167 if (A->getOption().getID() == OPT_compress_debug_sections) { 1168 Opts.setCompressDebugSections(llvm::DebugCompressionType::Z); 1169 } else { 1170 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1171 .Case("none", llvm::DebugCompressionType::None) 1172 .Case("zlib", llvm::DebugCompressionType::Z) 1173 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1174 .Default(llvm::DebugCompressionType::None); 1175 Opts.setCompressDebugSections(DCT); 1176 } 1177 } 1178 1179 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1180 Opts.DebugCompilationDir = 1181 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1182 for (auto *A : 1183 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1184 CodeGenOptions::BitcodeFileToLink F; 1185 F.Filename = A->getValue(); 1186 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1187 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1188 // When linking CUDA bitcode, propagate function attributes so that 1189 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1190 F.PropagateAttrs = true; 1191 F.Internalize = true; 1192 } 1193 Opts.LinkBitcodeFiles.push_back(F); 1194 } 1195 Opts.SanitizeCoverageType = 1196 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1197 Opts.SanitizeCoverageIndirectCalls = 1198 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1199 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1200 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1201 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1202 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1203 Opts.SanitizeCoverage8bitCounters = 1204 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1205 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1206 Opts.SanitizeCoverageTracePCGuard = 1207 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1208 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1209 Opts.SanitizeCoverageInline8bitCounters = 1210 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1211 Opts.SanitizeCoverageInlineBoolFlag = 1212 Args.hasArg(OPT_fsanitize_coverage_inline_bool_flag); 1213 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1214 Opts.SanitizeCoverageStackDepth = 1215 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1216 Opts.SanitizeCoverageAllowlistFiles = 1217 Args.getAllArgValues(OPT_fsanitize_coverage_allowlist); 1218 Opts.SanitizeCoverageBlocklistFiles = 1219 Args.getAllArgValues(OPT_fsanitize_coverage_blocklist); 1220 Opts.SanitizeMemoryTrackOrigins = 1221 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1222 Opts.SanitizeMemoryUseAfterDtor = 1223 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1224 OPT_fno_sanitize_memory_use_after_dtor, 1225 false); 1226 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1227 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1228 Opts.SanitizeCfiICallGeneralizePointers = 1229 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1230 Opts.SanitizeCfiCanonicalJumpTables = 1231 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1232 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1233 if (Arg *A = Args.getLastArg( 1234 OPT_fsanitize_address_poison_custom_array_cookie, 1235 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1236 Opts.SanitizeAddressPoisonCustomArrayCookie = 1237 A->getOption().getID() == 1238 OPT_fsanitize_address_poison_custom_array_cookie; 1239 } 1240 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1241 OPT_fno_sanitize_address_use_after_scope)) { 1242 Opts.SanitizeAddressUseAfterScope = 1243 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1244 } 1245 Opts.SanitizeAddressGlobalsDeadStripping = 1246 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1247 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1248 OPT_fno_sanitize_address_use_odr_indicator)) { 1249 Opts.SanitizeAddressUseOdrIndicator = 1250 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1251 } 1252 Opts.SSPBufferSize = 1253 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1254 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1255 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1256 StringRef Val = A->getValue(); 1257 unsigned StackAlignment = Opts.StackAlignment; 1258 Val.getAsInteger(10, StackAlignment); 1259 Opts.StackAlignment = StackAlignment; 1260 } 1261 1262 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1263 StringRef Val = A->getValue(); 1264 unsigned StackProbeSize = Opts.StackProbeSize; 1265 Val.getAsInteger(0, StackProbeSize); 1266 Opts.StackProbeSize = StackProbeSize; 1267 } 1268 1269 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1270 1271 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1272 1273 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1274 StringRef Name = A->getValue(); 1275 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1276 .Case("legacy", CodeGenOptions::Legacy) 1277 .Case("non-legacy", CodeGenOptions::NonLegacy) 1278 .Case("mixed", CodeGenOptions::Mixed) 1279 .Default(~0U); 1280 if (Method == ~0U) { 1281 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1282 Success = false; 1283 } else { 1284 Opts.setObjCDispatchMethod( 1285 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1286 } 1287 } 1288 1289 1290 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1291 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1292 1293 if (Args.getLastArg(OPT_femulated_tls) || 1294 Args.getLastArg(OPT_fno_emulated_tls)) { 1295 Opts.ExplicitEmulatedTLS = true; 1296 Opts.EmulatedTLS = 1297 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1298 } 1299 1300 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1301 StringRef Name = A->getValue(); 1302 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1303 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1304 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1305 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1306 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1307 .Default(~0U); 1308 if (Model == ~0U) { 1309 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1310 Success = false; 1311 } else { 1312 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1313 } 1314 } 1315 1316 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1317 1318 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1319 StringRef Val = A->getValue(); 1320 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1321 if (!Opts.FPDenormalMode.isValid()) 1322 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1323 } 1324 1325 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1326 StringRef Val = A->getValue(); 1327 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1328 if (!Opts.FP32DenormalMode.isValid()) 1329 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1330 } 1331 1332 // X86_32 has -fppc-struct-return and -freg-struct-return. 1333 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1334 if (Arg *A = 1335 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1336 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1337 // TODO: We might want to consider enabling these options on AIX in the 1338 // future. 1339 if (T.isOSAIX()) 1340 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1341 << A->getSpelling() << T.str(); 1342 1343 const Option &O = A->getOption(); 1344 if (O.matches(OPT_fpcc_struct_return) || 1345 O.matches(OPT_maix_struct_return)) { 1346 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1347 } else { 1348 assert(O.matches(OPT_freg_struct_return) || 1349 O.matches(OPT_msvr4_struct_return)); 1350 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1351 } 1352 } 1353 1354 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1355 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1356 bool NeedLocTracking = false; 1357 1358 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1359 if (!Opts.OptRecordFile.empty()) 1360 NeedLocTracking = true; 1361 1362 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1363 Opts.OptRecordPasses = A->getValue(); 1364 NeedLocTracking = true; 1365 } 1366 1367 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1368 Opts.OptRecordFormat = A->getValue(); 1369 NeedLocTracking = true; 1370 } 1371 1372 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1373 Opts.OptimizationRemarkPattern = 1374 GenerateOptimizationRemarkRegex(Diags, Args, A); 1375 NeedLocTracking = true; 1376 } 1377 1378 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1379 Opts.OptimizationRemarkMissedPattern = 1380 GenerateOptimizationRemarkRegex(Diags, Args, A); 1381 NeedLocTracking = true; 1382 } 1383 1384 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1385 Opts.OptimizationRemarkAnalysisPattern = 1386 GenerateOptimizationRemarkRegex(Diags, Args, A); 1387 NeedLocTracking = true; 1388 } 1389 1390 Opts.DiagnosticsWithHotness = 1391 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1392 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1393 bool UsingProfile = UsingSampleProfile || 1394 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1395 1396 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1397 // An IR file will contain PGO as metadata 1398 IK.getLanguage() != Language::LLVM_IR) 1399 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1400 << "-fdiagnostics-show-hotness"; 1401 1402 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1403 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1404 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1405 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1406 << "-fdiagnostics-hotness-threshold="; 1407 1408 // If the user requested to use a sample profile for PGO, then the 1409 // backend will need to track source location information so the profile 1410 // can be incorporated into the IR. 1411 if (UsingSampleProfile) 1412 NeedLocTracking = true; 1413 1414 // If the user requested a flag that requires source locations available in 1415 // the backend, make sure that the backend tracks source location information. 1416 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1417 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1418 1419 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1420 1421 // Parse -fsanitize-recover= arguments. 1422 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1423 parseSanitizerKinds("-fsanitize-recover=", 1424 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1425 Opts.SanitizeRecover); 1426 parseSanitizerKinds("-fsanitize-trap=", 1427 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1428 Opts.SanitizeTrap); 1429 1430 Opts.CudaGpuBinaryFileName = 1431 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1432 1433 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1434 1435 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1436 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1437 1438 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1439 1440 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1441 1442 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1443 1444 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1445 1446 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1447 1448 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1449 1450 Opts.SymbolPartition = 1451 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1452 1453 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1454 return Success; 1455 } 1456 1457 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1458 ArgList &Args) { 1459 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1460 Opts.Targets = Args.getAllArgValues(OPT_MT); 1461 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1462 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1463 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1464 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1465 Opts.HeaderIncludeOutputFile = 1466 std::string(Args.getLastArgValue(OPT_header_include_file)); 1467 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1468 if (Args.hasArg(OPT_show_includes)) { 1469 // Writing both /showIncludes and preprocessor output to stdout 1470 // would produce interleaved output, so use stderr for /showIncludes. 1471 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1472 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1473 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1474 else 1475 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1476 } else { 1477 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1478 } 1479 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1480 Opts.ModuleDependencyOutputDir = 1481 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1482 if (Args.hasArg(OPT_MV)) 1483 Opts.OutputFormat = DependencyOutputFormat::NMake; 1484 // Add sanitizer blacklists as extra dependencies. 1485 // They won't be discovered by the regular preprocessor, so 1486 // we let make / ninja to know about this implicit dependency. 1487 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1488 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1489 StringRef Val = A->getValue(); 1490 if (Val.find('=') == StringRef::npos) 1491 Opts.ExtraDeps.push_back(std::string(Val)); 1492 } 1493 if (Opts.IncludeSystemHeaders) { 1494 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1495 StringRef Val = A->getValue(); 1496 if (Val.find('=') == StringRef::npos) 1497 Opts.ExtraDeps.push_back(std::string(Val)); 1498 } 1499 } 1500 } 1501 1502 // Propagate the extra dependencies. 1503 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1504 Opts.ExtraDeps.push_back(A->getValue()); 1505 } 1506 1507 // Only the -fmodule-file=<file> form. 1508 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1509 StringRef Val = A->getValue(); 1510 if (Val.find('=') == StringRef::npos) 1511 Opts.ExtraDeps.push_back(std::string(Val)); 1512 } 1513 } 1514 1515 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1516 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1517 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1518 // Support both clang's -f[no-]color-diagnostics and gcc's 1519 // -f[no-]diagnostics-colors[=never|always|auto]. 1520 enum { 1521 Colors_On, 1522 Colors_Off, 1523 Colors_Auto 1524 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1525 for (auto *A : Args) { 1526 const Option &O = A->getOption(); 1527 if (O.matches(options::OPT_fcolor_diagnostics) || 1528 O.matches(options::OPT_fdiagnostics_color)) { 1529 ShowColors = Colors_On; 1530 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1531 O.matches(options::OPT_fno_diagnostics_color)) { 1532 ShowColors = Colors_Off; 1533 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1534 StringRef Value(A->getValue()); 1535 if (Value == "always") 1536 ShowColors = Colors_On; 1537 else if (Value == "never") 1538 ShowColors = Colors_Off; 1539 else if (Value == "auto") 1540 ShowColors = Colors_Auto; 1541 } 1542 } 1543 return ShowColors == Colors_On || 1544 (ShowColors == Colors_Auto && 1545 llvm::sys::Process::StandardErrHasColors()); 1546 } 1547 1548 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1549 DiagnosticsEngine *Diags) { 1550 bool Success = true; 1551 for (const auto &Prefix : VerifyPrefixes) { 1552 // Every prefix must start with a letter and contain only alphanumeric 1553 // characters, hyphens, and underscores. 1554 auto BadChar = llvm::find_if(Prefix, [](char C) { 1555 return !isAlphanumeric(C) && C != '-' && C != '_'; 1556 }); 1557 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1558 Success = false; 1559 if (Diags) { 1560 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1561 Diags->Report(diag::note_drv_verify_prefix_spelling); 1562 } 1563 } 1564 } 1565 return Success; 1566 } 1567 1568 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1569 DiagnosticsEngine *Diags, 1570 bool DefaultDiagColor) { 1571 bool Success = true; 1572 1573 Opts.DiagnosticLogFile = 1574 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1575 if (Arg *A = 1576 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1577 Opts.DiagnosticSerializationFile = A->getValue(); 1578 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1579 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1580 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1581 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1582 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1583 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1584 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1585 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1586 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1587 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1588 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1589 1590 // Default behavior is to not to show note include stacks. 1591 Opts.ShowNoteIncludeStack = false; 1592 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1593 OPT_fno_diagnostics_show_note_include_stack)) 1594 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1595 Opts.ShowNoteIncludeStack = true; 1596 1597 StringRef ShowOverloads = 1598 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1599 if (ShowOverloads == "best") 1600 Opts.setShowOverloads(Ovl_Best); 1601 else if (ShowOverloads == "all") 1602 Opts.setShowOverloads(Ovl_All); 1603 else { 1604 Success = false; 1605 if (Diags) 1606 Diags->Report(diag::err_drv_invalid_value) 1607 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1608 << ShowOverloads; 1609 } 1610 1611 StringRef ShowCategory = 1612 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1613 if (ShowCategory == "none") 1614 Opts.ShowCategories = 0; 1615 else if (ShowCategory == "id") 1616 Opts.ShowCategories = 1; 1617 else if (ShowCategory == "name") 1618 Opts.ShowCategories = 2; 1619 else { 1620 Success = false; 1621 if (Diags) 1622 Diags->Report(diag::err_drv_invalid_value) 1623 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1624 << ShowCategory; 1625 } 1626 1627 StringRef Format = 1628 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1629 if (Format == "clang") 1630 Opts.setFormat(DiagnosticOptions::Clang); 1631 else if (Format == "msvc") 1632 Opts.setFormat(DiagnosticOptions::MSVC); 1633 else if (Format == "msvc-fallback") { 1634 Opts.setFormat(DiagnosticOptions::MSVC); 1635 Opts.CLFallbackMode = true; 1636 } else if (Format == "vi") 1637 Opts.setFormat(DiagnosticOptions::Vi); 1638 else { 1639 Success = false; 1640 if (Diags) 1641 Diags->Report(diag::err_drv_invalid_value) 1642 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1643 << Format; 1644 } 1645 1646 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1647 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1648 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1649 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1650 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1651 if (Args.hasArg(OPT_verify)) 1652 Opts.VerifyPrefixes.push_back("expected"); 1653 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1654 // then sort it to prepare for fast lookup using std::binary_search. 1655 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1656 Opts.VerifyDiagnostics = false; 1657 Success = false; 1658 } 1659 else 1660 llvm::sort(Opts.VerifyPrefixes); 1661 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1662 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1663 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1664 Diags, DiagMask); 1665 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1666 DiagMask = DiagnosticLevelMask::All; 1667 Opts.setVerifyIgnoreUnexpected(DiagMask); 1668 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1669 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1670 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1671 Opts.MacroBacktraceLimit = 1672 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1673 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1674 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1675 Args, OPT_ftemplate_backtrace_limit, 1676 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1677 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1678 Args, OPT_fconstexpr_backtrace_limit, 1679 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1680 Opts.SpellCheckingLimit = getLastArgIntValue( 1681 Args, OPT_fspell_checking_limit, 1682 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1683 Opts.SnippetLineLimit = getLastArgIntValue( 1684 Args, OPT_fcaret_diagnostics_max_lines, 1685 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1686 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1687 DiagnosticOptions::DefaultTabStop, Diags); 1688 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1689 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1690 if (Diags) 1691 Diags->Report(diag::warn_ignoring_ftabstop_value) 1692 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1693 } 1694 Opts.MessageLength = 1695 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1696 1697 Opts.UndefPrefixes = Args.getAllArgValues(OPT_Wundef_prefix_EQ); 1698 1699 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1700 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1701 1702 return Success; 1703 } 1704 1705 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1706 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1707 } 1708 1709 /// Parse the argument to the -ftest-module-file-extension 1710 /// command-line argument. 1711 /// 1712 /// \returns true on error, false on success. 1713 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1714 std::string &BlockName, 1715 unsigned &MajorVersion, 1716 unsigned &MinorVersion, 1717 bool &Hashed, 1718 std::string &UserInfo) { 1719 SmallVector<StringRef, 5> Args; 1720 Arg.split(Args, ':', 5); 1721 if (Args.size() < 5) 1722 return true; 1723 1724 BlockName = std::string(Args[0]); 1725 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1726 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1727 if (Args[3].getAsInteger(2, Hashed)) return true; 1728 if (Args.size() > 4) 1729 UserInfo = std::string(Args[4]); 1730 return false; 1731 } 1732 1733 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1734 DiagnosticsEngine &Diags, 1735 bool &IsHeaderFile) { 1736 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1737 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1738 switch (A->getOption().getID()) { 1739 default: 1740 llvm_unreachable("Invalid option in group!"); 1741 case OPT_ast_list: 1742 Opts.ProgramAction = frontend::ASTDeclList; break; 1743 case OPT_ast_dump_all_EQ: 1744 case OPT_ast_dump_EQ: { 1745 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1746 .CaseLower("default", ADOF_Default) 1747 .CaseLower("json", ADOF_JSON) 1748 .Default(std::numeric_limits<unsigned>::max()); 1749 1750 if (Val != std::numeric_limits<unsigned>::max()) 1751 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1752 else { 1753 Diags.Report(diag::err_drv_invalid_value) 1754 << A->getAsString(Args) << A->getValue(); 1755 Opts.ASTDumpFormat = ADOF_Default; 1756 } 1757 LLVM_FALLTHROUGH; 1758 } 1759 case OPT_ast_dump: 1760 case OPT_ast_dump_all: 1761 case OPT_ast_dump_lookups: 1762 case OPT_ast_dump_decl_types: 1763 Opts.ProgramAction = frontend::ASTDump; break; 1764 case OPT_ast_print: 1765 Opts.ProgramAction = frontend::ASTPrint; break; 1766 case OPT_ast_view: 1767 Opts.ProgramAction = frontend::ASTView; break; 1768 case OPT_compiler_options_dump: 1769 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1770 case OPT_dump_raw_tokens: 1771 Opts.ProgramAction = frontend::DumpRawTokens; break; 1772 case OPT_dump_tokens: 1773 Opts.ProgramAction = frontend::DumpTokens; break; 1774 case OPT_S: 1775 Opts.ProgramAction = frontend::EmitAssembly; break; 1776 case OPT_emit_llvm_bc: 1777 Opts.ProgramAction = frontend::EmitBC; break; 1778 case OPT_emit_html: 1779 Opts.ProgramAction = frontend::EmitHTML; break; 1780 case OPT_emit_llvm: 1781 Opts.ProgramAction = frontend::EmitLLVM; break; 1782 case OPT_emit_llvm_only: 1783 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1784 case OPT_emit_codegen_only: 1785 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1786 case OPT_emit_obj: 1787 Opts.ProgramAction = frontend::EmitObj; break; 1788 case OPT_fixit_EQ: 1789 Opts.FixItSuffix = A->getValue(); 1790 LLVM_FALLTHROUGH; 1791 case OPT_fixit: 1792 Opts.ProgramAction = frontend::FixIt; break; 1793 case OPT_emit_module: 1794 Opts.ProgramAction = frontend::GenerateModule; break; 1795 case OPT_emit_module_interface: 1796 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1797 case OPT_emit_header_module: 1798 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1799 case OPT_emit_pch: 1800 Opts.ProgramAction = frontend::GeneratePCH; break; 1801 case OPT_emit_interface_stubs: { 1802 StringRef ArgStr = 1803 Args.hasArg(OPT_interface_stub_version_EQ) 1804 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1805 : "experimental-ifs-v2"; 1806 if (ArgStr == "experimental-yaml-elf-v1" || 1807 ArgStr == "experimental-ifs-v1" || 1808 ArgStr == "experimental-tapi-elf-v1") { 1809 std::string ErrorMessage = 1810 "Invalid interface stub format: " + ArgStr.str() + 1811 " is deprecated."; 1812 Diags.Report(diag::err_drv_invalid_value) 1813 << "Must specify a valid interface stub format type, ie: " 1814 "-interface-stub-version=experimental-ifs-v2" 1815 << ErrorMessage; 1816 } else if (!ArgStr.startswith("experimental-ifs-")) { 1817 std::string ErrorMessage = 1818 "Invalid interface stub format: " + ArgStr.str() + "."; 1819 Diags.Report(diag::err_drv_invalid_value) 1820 << "Must specify a valid interface stub format type, ie: " 1821 "-interface-stub-version=experimental-ifs-v2" 1822 << ErrorMessage; 1823 } else { 1824 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1825 } 1826 break; 1827 } 1828 case OPT_init_only: 1829 Opts.ProgramAction = frontend::InitOnly; break; 1830 case OPT_fsyntax_only: 1831 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1832 case OPT_module_file_info: 1833 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1834 case OPT_verify_pch: 1835 Opts.ProgramAction = frontend::VerifyPCH; break; 1836 case OPT_print_preamble: 1837 Opts.ProgramAction = frontend::PrintPreamble; break; 1838 case OPT_E: 1839 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1840 case OPT_templight_dump: 1841 Opts.ProgramAction = frontend::TemplightDump; break; 1842 case OPT_rewrite_macros: 1843 Opts.ProgramAction = frontend::RewriteMacros; break; 1844 case OPT_rewrite_objc: 1845 Opts.ProgramAction = frontend::RewriteObjC; break; 1846 case OPT_rewrite_test: 1847 Opts.ProgramAction = frontend::RewriteTest; break; 1848 case OPT_analyze: 1849 Opts.ProgramAction = frontend::RunAnalysis; break; 1850 case OPT_migrate: 1851 Opts.ProgramAction = frontend::MigrateSource; break; 1852 case OPT_Eonly: 1853 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1854 case OPT_print_dependency_directives_minimized_source: 1855 Opts.ProgramAction = 1856 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1857 break; 1858 } 1859 } 1860 1861 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1862 Opts.Plugins.emplace_back(A->getValue(0)); 1863 Opts.ProgramAction = frontend::PluginAction; 1864 Opts.ActionName = A->getValue(); 1865 } 1866 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1867 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1868 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1869 1870 for (const std::string &Arg : 1871 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1872 std::string BlockName; 1873 unsigned MajorVersion; 1874 unsigned MinorVersion; 1875 bool Hashed; 1876 std::string UserInfo; 1877 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1878 MinorVersion, Hashed, UserInfo)) { 1879 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1880 1881 continue; 1882 } 1883 1884 // Add the testing module file extension. 1885 Opts.ModuleFileExtensions.push_back( 1886 std::make_shared<TestModuleFileExtension>( 1887 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1888 } 1889 1890 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1891 Opts.CodeCompletionAt = 1892 ParsedSourceLocation::FromString(A->getValue()); 1893 if (Opts.CodeCompletionAt.FileName.empty()) 1894 Diags.Report(diag::err_drv_invalid_value) 1895 << A->getAsString(Args) << A->getValue(); 1896 } 1897 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1898 1899 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1900 Opts.Plugins = Args.getAllArgValues(OPT_load); 1901 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1902 Opts.ShowHelp = Args.hasArg(OPT_help); 1903 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1904 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1905 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1906 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1907 Opts.TimeTraceGranularity = getLastArgIntValue( 1908 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1909 Opts.ShowVersion = Args.hasArg(OPT_version); 1910 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1911 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1912 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1913 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1914 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1915 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1916 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1917 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1918 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1919 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1920 Opts.ASTDumpDeclTypes = Args.hasArg(OPT_ast_dump_decl_types); 1921 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1922 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1923 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1924 // Only the -fmodule-file=<file> form. 1925 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1926 StringRef Val = A->getValue(); 1927 if (Val.find('=') == StringRef::npos) 1928 Opts.ModuleFiles.push_back(std::string(Val)); 1929 } 1930 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1931 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1932 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1933 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1934 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 1935 1936 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1937 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1938 << "-emit-module"; 1939 1940 Opts.CodeCompleteOpts.IncludeMacros 1941 = Args.hasArg(OPT_code_completion_macros); 1942 Opts.CodeCompleteOpts.IncludeCodePatterns 1943 = Args.hasArg(OPT_code_completion_patterns); 1944 Opts.CodeCompleteOpts.IncludeGlobals 1945 = !Args.hasArg(OPT_no_code_completion_globals); 1946 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1947 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1948 Opts.CodeCompleteOpts.IncludeBriefComments 1949 = Args.hasArg(OPT_code_completion_brief_comments); 1950 Opts.CodeCompleteOpts.IncludeFixIts 1951 = Args.hasArg(OPT_code_completion_with_fixits); 1952 1953 Opts.OverrideRecordLayoutsFile = 1954 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1955 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1956 if (Args.hasArg(OPT_aux_target_cpu)) 1957 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1958 if (Args.hasArg(OPT_aux_target_feature)) 1959 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1960 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1961 1962 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1963 OPT_arcmt_modify, 1964 OPT_arcmt_migrate)) { 1965 switch (A->getOption().getID()) { 1966 default: 1967 llvm_unreachable("missed a case"); 1968 case OPT_arcmt_check: 1969 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1970 break; 1971 case OPT_arcmt_modify: 1972 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1973 break; 1974 case OPT_arcmt_migrate: 1975 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1976 break; 1977 } 1978 } 1979 Opts.MTMigrateDir = 1980 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1981 Opts.ARCMTMigrateReportOut = 1982 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1983 Opts.ARCMTMigrateEmitARCErrors 1984 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1985 1986 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1987 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1988 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1989 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1990 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1991 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1992 if (Args.hasArg(OPT_objcmt_migrate_property)) 1993 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1994 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1995 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1996 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1997 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1998 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1999 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 2000 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 2001 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 2002 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 2003 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 2004 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 2005 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 2006 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 2007 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 2008 if (Args.hasArg(OPT_objcmt_atomic_property)) 2009 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 2010 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 2011 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 2012 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 2013 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 2014 if (Args.hasArg(OPT_objcmt_migrate_all)) 2015 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 2016 2017 Opts.ObjCMTWhiteListPath = 2018 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 2019 2020 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2021 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2022 Diags.Report(diag::err_drv_argument_not_allowed_with) 2023 << "ARC migration" << "ObjC migration"; 2024 } 2025 2026 InputKind DashX(Language::Unknown); 2027 if (const Arg *A = Args.getLastArg(OPT_x)) { 2028 StringRef XValue = A->getValue(); 2029 2030 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2031 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2032 bool Preprocessed = XValue.consume_back("-cpp-output"); 2033 bool ModuleMap = XValue.consume_back("-module-map"); 2034 IsHeaderFile = !Preprocessed && !ModuleMap && 2035 XValue != "precompiled-header" && 2036 XValue.consume_back("-header"); 2037 2038 // Principal languages. 2039 DashX = llvm::StringSwitch<InputKind>(XValue) 2040 .Case("c", Language::C) 2041 .Case("cl", Language::OpenCL) 2042 .Case("cuda", Language::CUDA) 2043 .Case("hip", Language::HIP) 2044 .Case("c++", Language::CXX) 2045 .Case("objective-c", Language::ObjC) 2046 .Case("objective-c++", Language::ObjCXX) 2047 .Case("renderscript", Language::RenderScript) 2048 .Default(Language::Unknown); 2049 2050 // "objc[++]-cpp-output" is an acceptable synonym for 2051 // "objective-c[++]-cpp-output". 2052 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2053 DashX = llvm::StringSwitch<InputKind>(XValue) 2054 .Case("objc", Language::ObjC) 2055 .Case("objc++", Language::ObjCXX) 2056 .Default(Language::Unknown); 2057 2058 // Some special cases cannot be combined with suffixes. 2059 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2060 DashX = llvm::StringSwitch<InputKind>(XValue) 2061 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2062 .Case("assembler-with-cpp", Language::Asm) 2063 .Cases("ast", "pcm", "precompiled-header", 2064 InputKind(Language::Unknown, InputKind::Precompiled)) 2065 .Case("ir", Language::LLVM_IR) 2066 .Default(Language::Unknown); 2067 2068 if (DashX.isUnknown()) 2069 Diags.Report(diag::err_drv_invalid_value) 2070 << A->getAsString(Args) << A->getValue(); 2071 2072 if (Preprocessed) 2073 DashX = DashX.getPreprocessed(); 2074 if (ModuleMap) 2075 DashX = DashX.withFormat(InputKind::ModuleMap); 2076 } 2077 2078 // '-' is the default input if none is given. 2079 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2080 Opts.Inputs.clear(); 2081 if (Inputs.empty()) 2082 Inputs.push_back("-"); 2083 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2084 InputKind IK = DashX; 2085 if (IK.isUnknown()) { 2086 IK = FrontendOptions::getInputKindForExtension( 2087 StringRef(Inputs[i]).rsplit('.').second); 2088 // FIXME: Warn on this? 2089 if (IK.isUnknown()) 2090 IK = Language::C; 2091 // FIXME: Remove this hack. 2092 if (i == 0) 2093 DashX = IK; 2094 } 2095 2096 bool IsSystem = false; 2097 2098 // The -emit-module action implicitly takes a module map. 2099 if (Opts.ProgramAction == frontend::GenerateModule && 2100 IK.getFormat() == InputKind::Source) { 2101 IK = IK.withFormat(InputKind::ModuleMap); 2102 IsSystem = Opts.IsSystemModule; 2103 } 2104 2105 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2106 } 2107 2108 return DashX; 2109 } 2110 2111 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2112 void *MainAddr) { 2113 std::string ClangExecutable = 2114 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2115 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2116 } 2117 2118 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2119 const std::string &WorkingDir) { 2120 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2121 Opts.Verbose = Args.hasArg(OPT_v); 2122 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2123 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2124 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2125 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2126 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2127 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2128 2129 // Canonicalize -fmodules-cache-path before storing it. 2130 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2131 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2132 if (WorkingDir.empty()) 2133 llvm::sys::fs::make_absolute(P); 2134 else 2135 llvm::sys::fs::make_absolute(WorkingDir, P); 2136 } 2137 llvm::sys::path::remove_dots(P); 2138 Opts.ModuleCachePath = std::string(P.str()); 2139 2140 Opts.ModuleUserBuildPath = 2141 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2142 // Only the -fmodule-file=<name>=<file> form. 2143 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2144 StringRef Val = A->getValue(); 2145 if (Val.find('=') != StringRef::npos){ 2146 auto Split = Val.split('='); 2147 Opts.PrebuiltModuleFiles.insert( 2148 {std::string(Split.first), std::string(Split.second)}); 2149 } 2150 } 2151 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2152 Opts.AddPrebuiltModulePath(A->getValue()); 2153 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2154 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2155 Opts.ModulesValidateDiagnosticOptions = 2156 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2157 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2158 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2159 Opts.ModuleCachePruneInterval = 2160 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2161 Opts.ModuleCachePruneAfter = 2162 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2163 Opts.ModulesValidateOncePerBuildSession = 2164 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2165 Opts.BuildSessionTimestamp = 2166 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2167 Opts.ModulesValidateSystemHeaders = 2168 Args.hasArg(OPT_fmodules_validate_system_headers); 2169 Opts.ValidateASTInputFilesContent = 2170 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2171 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2172 Opts.ModuleFormat = A->getValue(); 2173 2174 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2175 StringRef MacroDef = A->getValue(); 2176 Opts.ModulesIgnoreMacros.insert( 2177 llvm::CachedHashString(MacroDef.split('=').first)); 2178 } 2179 2180 // Add -I..., -F..., and -index-header-map options in order. 2181 bool IsIndexHeaderMap = false; 2182 bool IsSysrootSpecified = 2183 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2184 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2185 if (A->getOption().matches(OPT_index_header_map)) { 2186 // -index-header-map applies to the next -I or -F. 2187 IsIndexHeaderMap = true; 2188 continue; 2189 } 2190 2191 frontend::IncludeDirGroup Group = 2192 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2193 2194 bool IsFramework = A->getOption().matches(OPT_F); 2195 std::string Path = A->getValue(); 2196 2197 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2198 SmallString<32> Buffer; 2199 llvm::sys::path::append(Buffer, Opts.Sysroot, 2200 llvm::StringRef(A->getValue()).substr(1)); 2201 Path = std::string(Buffer.str()); 2202 } 2203 2204 Opts.AddPath(Path, Group, IsFramework, 2205 /*IgnoreSysroot*/ true); 2206 IsIndexHeaderMap = false; 2207 } 2208 2209 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2210 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2211 for (const auto *A : 2212 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2213 if (A->getOption().matches(OPT_iprefix)) 2214 Prefix = A->getValue(); 2215 else if (A->getOption().matches(OPT_iwithprefix)) 2216 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2217 else 2218 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2219 } 2220 2221 for (const auto *A : Args.filtered(OPT_idirafter)) 2222 Opts.AddPath(A->getValue(), frontend::After, false, true); 2223 for (const auto *A : Args.filtered(OPT_iquote)) 2224 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2225 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2226 Opts.AddPath(A->getValue(), frontend::System, false, 2227 !A->getOption().matches(OPT_iwithsysroot)); 2228 for (const auto *A : Args.filtered(OPT_iframework)) 2229 Opts.AddPath(A->getValue(), frontend::System, true, true); 2230 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2231 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2232 /*IgnoreSysRoot=*/false); 2233 2234 // Add the paths for the various language specific isystem flags. 2235 for (const auto *A : Args.filtered(OPT_c_isystem)) 2236 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2237 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2238 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2239 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2240 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2241 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2242 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2243 2244 // Add the internal paths from a driver that detects standard include paths. 2245 for (const auto *A : 2246 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2247 frontend::IncludeDirGroup Group = frontend::System; 2248 if (A->getOption().matches(OPT_internal_externc_isystem)) 2249 Group = frontend::ExternCSystem; 2250 Opts.AddPath(A->getValue(), Group, false, true); 2251 } 2252 2253 // Add the path prefixes which are implicitly treated as being system headers. 2254 for (const auto *A : 2255 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2256 Opts.AddSystemHeaderPrefix( 2257 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2258 2259 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2260 Opts.AddVFSOverlayFile(A->getValue()); 2261 } 2262 2263 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2264 const llvm::Triple &T, 2265 PreprocessorOptions &PPOpts, 2266 LangStandard::Kind LangStd) { 2267 // Set some properties which depend solely on the input kind; it would be nice 2268 // to move these to the language standard, and have the driver resolve the 2269 // input kind + language standard. 2270 // 2271 // FIXME: Perhaps a better model would be for a single source file to have 2272 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2273 // simultaneously active? 2274 if (IK.getLanguage() == Language::Asm) { 2275 Opts.AsmPreprocessor = 1; 2276 } else if (IK.isObjectiveC()) { 2277 Opts.ObjC = 1; 2278 } 2279 2280 if (LangStd == LangStandard::lang_unspecified) { 2281 // Based on the base language, pick one. 2282 switch (IK.getLanguage()) { 2283 case Language::Unknown: 2284 case Language::LLVM_IR: 2285 llvm_unreachable("Invalid input kind!"); 2286 case Language::OpenCL: 2287 LangStd = LangStandard::lang_opencl10; 2288 break; 2289 case Language::CUDA: 2290 LangStd = LangStandard::lang_cuda; 2291 break; 2292 case Language::Asm: 2293 case Language::C: 2294 #if defined(CLANG_DEFAULT_STD_C) 2295 LangStd = CLANG_DEFAULT_STD_C; 2296 #else 2297 // The PS4 uses C99 as the default C standard. 2298 if (T.isPS4()) 2299 LangStd = LangStandard::lang_gnu99; 2300 else 2301 LangStd = LangStandard::lang_gnu17; 2302 #endif 2303 break; 2304 case Language::ObjC: 2305 #if defined(CLANG_DEFAULT_STD_C) 2306 LangStd = CLANG_DEFAULT_STD_C; 2307 #else 2308 LangStd = LangStandard::lang_gnu11; 2309 #endif 2310 break; 2311 case Language::CXX: 2312 case Language::ObjCXX: 2313 #if defined(CLANG_DEFAULT_STD_CXX) 2314 LangStd = CLANG_DEFAULT_STD_CXX; 2315 #else 2316 LangStd = LangStandard::lang_gnucxx14; 2317 #endif 2318 break; 2319 case Language::RenderScript: 2320 LangStd = LangStandard::lang_c99; 2321 break; 2322 case Language::HIP: 2323 LangStd = LangStandard::lang_hip; 2324 break; 2325 } 2326 } 2327 2328 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2329 Opts.LineComment = Std.hasLineComments(); 2330 Opts.C99 = Std.isC99(); 2331 Opts.C11 = Std.isC11(); 2332 Opts.C17 = Std.isC17(); 2333 Opts.C2x = Std.isC2x(); 2334 Opts.CPlusPlus = Std.isCPlusPlus(); 2335 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2336 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2337 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2338 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 2339 Opts.Digraphs = Std.hasDigraphs(); 2340 Opts.GNUMode = Std.isGNUMode(); 2341 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2342 Opts.GNUCVersion = 0; 2343 Opts.HexFloats = Std.hasHexFloats(); 2344 Opts.ImplicitInt = Std.hasImplicitInt(); 2345 2346 // Set OpenCL Version. 2347 Opts.OpenCL = Std.isOpenCL(); 2348 if (LangStd == LangStandard::lang_opencl10) 2349 Opts.OpenCLVersion = 100; 2350 else if (LangStd == LangStandard::lang_opencl11) 2351 Opts.OpenCLVersion = 110; 2352 else if (LangStd == LangStandard::lang_opencl12) 2353 Opts.OpenCLVersion = 120; 2354 else if (LangStd == LangStandard::lang_opencl20) 2355 Opts.OpenCLVersion = 200; 2356 else if (LangStd == LangStandard::lang_openclcpp) 2357 Opts.OpenCLCPlusPlusVersion = 100; 2358 2359 // OpenCL has some additional defaults. 2360 if (Opts.OpenCL) { 2361 Opts.AltiVec = 0; 2362 Opts.ZVector = 0; 2363 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2364 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2365 Opts.NativeHalfType = 1; 2366 Opts.NativeHalfArgsAndReturns = 1; 2367 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2368 2369 // Include default header file for OpenCL. 2370 if (Opts.IncludeDefaultHeader) { 2371 if (Opts.DeclareOpenCLBuiltins) { 2372 // Only include base header file for builtin types and constants. 2373 PPOpts.Includes.push_back("opencl-c-base.h"); 2374 } else { 2375 PPOpts.Includes.push_back("opencl-c.h"); 2376 } 2377 } 2378 } 2379 2380 Opts.HIP = IK.getLanguage() == Language::HIP; 2381 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2382 if (Opts.CUDA) 2383 // Set default FP_CONTRACT to FAST. 2384 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2385 2386 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2387 if (Opts.RenderScript) { 2388 Opts.NativeHalfType = 1; 2389 Opts.NativeHalfArgsAndReturns = 1; 2390 } 2391 2392 // OpenCL and C++ both have bool, true, false keywords. 2393 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2394 2395 // OpenCL has half keyword 2396 Opts.Half = Opts.OpenCL; 2397 2398 // C++ has wchar_t keyword. 2399 Opts.WChar = Opts.CPlusPlus; 2400 2401 Opts.GNUKeywords = Opts.GNUMode; 2402 Opts.CXXOperatorNames = Opts.CPlusPlus; 2403 2404 Opts.AlignedAllocation = Opts.CPlusPlus17; 2405 2406 Opts.DollarIdents = !Opts.AsmPreprocessor; 2407 2408 // Enable [[]] attributes in C++11 and C2x by default. 2409 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2410 } 2411 2412 /// Attempt to parse a visibility value out of the given argument. 2413 static Visibility parseVisibility(Arg *arg, ArgList &args, 2414 DiagnosticsEngine &diags) { 2415 StringRef value = arg->getValue(); 2416 if (value == "default") { 2417 return DefaultVisibility; 2418 } else if (value == "hidden" || value == "internal") { 2419 return HiddenVisibility; 2420 } else if (value == "protected") { 2421 // FIXME: diagnose if target does not support protected visibility 2422 return ProtectedVisibility; 2423 } 2424 2425 diags.Report(diag::err_drv_invalid_value) 2426 << arg->getAsString(args) << value; 2427 return DefaultVisibility; 2428 } 2429 2430 /// Check if input file kind and language standard are compatible. 2431 static bool IsInputCompatibleWithStandard(InputKind IK, 2432 const LangStandard &S) { 2433 switch (IK.getLanguage()) { 2434 case Language::Unknown: 2435 case Language::LLVM_IR: 2436 llvm_unreachable("should not parse language flags for this input"); 2437 2438 case Language::C: 2439 case Language::ObjC: 2440 case Language::RenderScript: 2441 return S.getLanguage() == Language::C; 2442 2443 case Language::OpenCL: 2444 return S.getLanguage() == Language::OpenCL; 2445 2446 case Language::CXX: 2447 case Language::ObjCXX: 2448 return S.getLanguage() == Language::CXX; 2449 2450 case Language::CUDA: 2451 // FIXME: What -std= values should be permitted for CUDA compilations? 2452 return S.getLanguage() == Language::CUDA || 2453 S.getLanguage() == Language::CXX; 2454 2455 case Language::HIP: 2456 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2457 2458 case Language::Asm: 2459 // Accept (and ignore) all -std= values. 2460 // FIXME: The -std= value is not ignored; it affects the tokenization 2461 // and preprocessing rules if we're preprocessing this asm input. 2462 return true; 2463 } 2464 2465 llvm_unreachable("unexpected input language"); 2466 } 2467 2468 /// Get language name for given input kind. 2469 static const StringRef GetInputKindName(InputKind IK) { 2470 switch (IK.getLanguage()) { 2471 case Language::C: 2472 return "C"; 2473 case Language::ObjC: 2474 return "Objective-C"; 2475 case Language::CXX: 2476 return "C++"; 2477 case Language::ObjCXX: 2478 return "Objective-C++"; 2479 case Language::OpenCL: 2480 return "OpenCL"; 2481 case Language::CUDA: 2482 return "CUDA"; 2483 case Language::RenderScript: 2484 return "RenderScript"; 2485 case Language::HIP: 2486 return "HIP"; 2487 2488 case Language::Asm: 2489 return "Asm"; 2490 case Language::LLVM_IR: 2491 return "LLVM IR"; 2492 2493 case Language::Unknown: 2494 break; 2495 } 2496 llvm_unreachable("unknown input language"); 2497 } 2498 2499 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2500 const TargetOptions &TargetOpts, 2501 PreprocessorOptions &PPOpts, 2502 DiagnosticsEngine &Diags) { 2503 // FIXME: Cleanup per-file based stuff. 2504 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2505 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2506 LangStd = LangStandard::getLangKind(A->getValue()); 2507 if (LangStd == LangStandard::lang_unspecified) { 2508 Diags.Report(diag::err_drv_invalid_value) 2509 << A->getAsString(Args) << A->getValue(); 2510 // Report supported standards with short description. 2511 for (unsigned KindValue = 0; 2512 KindValue != LangStandard::lang_unspecified; 2513 ++KindValue) { 2514 const LangStandard &Std = LangStandard::getLangStandardForKind( 2515 static_cast<LangStandard::Kind>(KindValue)); 2516 if (IsInputCompatibleWithStandard(IK, Std)) { 2517 auto Diag = Diags.Report(diag::note_drv_use_standard); 2518 Diag << Std.getName() << Std.getDescription(); 2519 unsigned NumAliases = 0; 2520 #define LANGSTANDARD(id, name, lang, desc, features) 2521 #define LANGSTANDARD_ALIAS(id, alias) \ 2522 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2523 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2524 #include "clang/Basic/LangStandards.def" 2525 Diag << NumAliases; 2526 #define LANGSTANDARD(id, name, lang, desc, features) 2527 #define LANGSTANDARD_ALIAS(id, alias) \ 2528 if (KindValue == LangStandard::lang_##id) Diag << alias; 2529 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2530 #include "clang/Basic/LangStandards.def" 2531 } 2532 } 2533 } else { 2534 // Valid standard, check to make sure language and standard are 2535 // compatible. 2536 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2537 if (!IsInputCompatibleWithStandard(IK, Std)) { 2538 Diags.Report(diag::err_drv_argument_not_allowed_with) 2539 << A->getAsString(Args) << GetInputKindName(IK); 2540 } 2541 } 2542 } 2543 2544 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2545 Opts.DllExportInlines = false; 2546 2547 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2548 StringRef Name = A->getValue(); 2549 if (Name == "full" || Name == "branch") { 2550 Opts.CFProtectionBranch = 1; 2551 } 2552 } 2553 // -cl-std only applies for OpenCL language standards. 2554 // Override the -std option in this case. 2555 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2556 LangStandard::Kind OpenCLLangStd 2557 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2558 .Cases("cl", "CL", LangStandard::lang_opencl10) 2559 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2560 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2561 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2562 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2563 .Default(LangStandard::lang_unspecified); 2564 2565 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2566 Diags.Report(diag::err_drv_invalid_value) 2567 << A->getAsString(Args) << A->getValue(); 2568 } 2569 else 2570 LangStd = OpenCLLangStd; 2571 } 2572 2573 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2574 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2575 if (Opts.SYCL) { 2576 // -sycl-std applies to any SYCL source, not only those containing kernels, 2577 // but also those using the SYCL API 2578 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2579 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2580 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2581 .Default(0U); 2582 2583 if (Opts.SYCLVersion == 0U) { 2584 // User has passed an invalid value to the flag, this is an error 2585 Diags.Report(diag::err_drv_invalid_value) 2586 << A->getAsString(Args) << A->getValue(); 2587 } 2588 } 2589 } 2590 2591 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2592 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2593 2594 llvm::Triple T(TargetOpts.Triple); 2595 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2596 2597 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2598 // This option should be deprecated for CL > 1.0 because 2599 // this option was added for compatibility with OpenCL 1.0. 2600 if (Args.getLastArg(OPT_cl_strict_aliasing) 2601 && Opts.OpenCLVersion > 100) { 2602 Diags.Report(diag::warn_option_invalid_ocl_version) 2603 << Opts.getOpenCLVersionTuple().getAsString() 2604 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2605 } 2606 2607 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2608 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2609 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2610 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2611 // name, as it doesn't seem a useful distinction. 2612 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2613 Opts.GNUKeywords); 2614 2615 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2616 2617 if (Args.hasArg(OPT_fno_operator_names)) 2618 Opts.CXXOperatorNames = 0; 2619 2620 if (Args.hasArg(OPT_fcuda_is_device)) 2621 Opts.CUDAIsDevice = 1; 2622 2623 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2624 Opts.CUDAAllowVariadicFunctions = 1; 2625 2626 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2627 Opts.CUDAHostDeviceConstexpr = 0; 2628 2629 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2630 Opts.CUDADeviceApproxTranscendentals = 1; 2631 2632 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2633 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2634 if (Opts.HIP) 2635 Opts.GPUAllowDeviceInit = 1; 2636 else 2637 Diags.Report(diag::warn_ignored_hip_only_option) 2638 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2639 } 2640 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2641 if (Opts.HIP) 2642 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2643 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2644 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2645 Diags.Report(diag::warn_ignored_hip_only_option) 2646 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2647 2648 if (Opts.ObjC) { 2649 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2650 StringRef value = arg->getValue(); 2651 if (Opts.ObjCRuntime.tryParse(value)) 2652 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2653 } 2654 2655 if (Args.hasArg(OPT_fobjc_gc_only)) 2656 Opts.setGC(LangOptions::GCOnly); 2657 else if (Args.hasArg(OPT_fobjc_gc)) 2658 Opts.setGC(LangOptions::HybridGC); 2659 else if (Args.hasArg(OPT_fobjc_arc)) { 2660 Opts.ObjCAutoRefCount = 1; 2661 if (!Opts.ObjCRuntime.allowsARC()) 2662 Diags.Report(diag::err_arc_unsupported_on_runtime); 2663 } 2664 2665 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2666 // whether the feature is actually enabled. This is predominantly 2667 // determined by -fobjc-runtime, but we allow it to be overridden 2668 // from the command line for testing purposes. 2669 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2670 Opts.ObjCWeakRuntime = 1; 2671 else 2672 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2673 2674 // ObjCWeak determines whether __weak is actually enabled. 2675 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2676 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2677 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2678 assert(!Opts.ObjCWeak); 2679 } else if (Opts.getGC() != LangOptions::NonGC) { 2680 Diags.Report(diag::err_objc_weak_with_gc); 2681 } else if (!Opts.ObjCWeakRuntime) { 2682 Diags.Report(diag::err_objc_weak_unsupported); 2683 } else { 2684 Opts.ObjCWeak = 1; 2685 } 2686 } else if (Opts.ObjCAutoRefCount) { 2687 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2688 } 2689 2690 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2691 Opts.ObjCInferRelatedResultType = 0; 2692 2693 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2694 Opts.ObjCSubscriptingLegacyRuntime = 2695 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2696 } 2697 2698 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2699 // Check that the version has 1 to 3 components and the minor and patch 2700 // versions fit in two decimal digits. 2701 VersionTuple GNUCVer; 2702 bool Invalid = GNUCVer.tryParse(A->getValue()); 2703 unsigned Major = GNUCVer.getMajor(); 2704 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2705 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2706 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2707 Diags.Report(diag::err_drv_invalid_value) 2708 << A->getAsString(Args) << A->getValue(); 2709 } 2710 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2711 } 2712 2713 if (Args.hasArg(OPT_fgnu89_inline)) { 2714 if (Opts.CPlusPlus) 2715 Diags.Report(diag::err_drv_argument_not_allowed_with) 2716 << "-fgnu89-inline" << GetInputKindName(IK); 2717 else 2718 Opts.GNUInline = 1; 2719 } 2720 2721 if (Args.hasArg(OPT_fapple_kext)) { 2722 if (!Opts.CPlusPlus) 2723 Diags.Report(diag::warn_c_kext); 2724 else 2725 Opts.AppleKext = 1; 2726 } 2727 2728 if (Args.hasArg(OPT_print_ivar_layout)) 2729 Opts.ObjCGCBitmapPrint = 1; 2730 2731 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2732 Opts.NoConstantCFStrings = 1; 2733 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2734 Opts.CFRuntime = 2735 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2736 .Cases("unspecified", "standalone", "objc", 2737 LangOptions::CoreFoundationABI::ObjectiveC) 2738 .Cases("swift", "swift-5.0", 2739 LangOptions::CoreFoundationABI::Swift5_0) 2740 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2741 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2742 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2743 2744 if (Args.hasArg(OPT_fzvector)) 2745 Opts.ZVector = 1; 2746 2747 if (Args.hasArg(OPT_pthread)) 2748 Opts.POSIXThreads = 1; 2749 2750 // The value-visibility mode defaults to "default". 2751 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2752 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2753 } else { 2754 Opts.setValueVisibilityMode(DefaultVisibility); 2755 } 2756 2757 // The type-visibility mode defaults to the value-visibility mode. 2758 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2759 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2760 } else { 2761 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2762 } 2763 2764 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2765 Opts.InlineVisibilityHidden = 1; 2766 2767 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2768 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2769 2770 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2771 Opts.SetVisibilityForExternDecls = 1; 2772 2773 if (Args.hasArg(OPT_ftrapv)) { 2774 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2775 // Set the handler, if one is specified. 2776 Opts.OverflowHandler = 2777 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2778 } 2779 else if (Args.hasArg(OPT_fwrapv)) 2780 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2781 2782 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2783 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2784 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2785 Opts.MSCompatibilityVersion = 0; 2786 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2787 VersionTuple VT; 2788 if (VT.tryParse(A->getValue())) 2789 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2790 << A->getValue(); 2791 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2792 VT.getMinor().getValueOr(0) * 100000 + 2793 VT.getSubminor().getValueOr(0); 2794 } 2795 2796 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2797 // is specified, or -std is set to a conforming mode. 2798 // Trigraphs are disabled by default in c++1z onwards. 2799 // For z/OS, trigraphs are enabled by default (without regard to the above). 2800 Opts.Trigraphs = 2801 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 2802 Opts.Trigraphs = 2803 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2804 2805 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2806 OPT_fno_dollars_in_identifiers, 2807 Opts.DollarIdents); 2808 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2809 Opts.setVtorDispMode( 2810 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2811 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2812 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2813 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2814 Opts.ConstStrings); 2815 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2816 using LaxKind = LangOptions::LaxVectorConversionKind; 2817 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2818 .Case("none", LaxKind::None) 2819 .Case("integer", LaxKind::Integer) 2820 .Case("all", LaxKind::All) 2821 .Default(llvm::None)) 2822 Opts.setLaxVectorConversions(*Kind); 2823 else 2824 Diags.Report(diag::err_drv_invalid_value) 2825 << A->getAsString(Args) << A->getValue(); 2826 } 2827 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2828 Opts.ThreadsafeStatics = 0; 2829 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2830 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2831 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2832 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2833 2834 // -ffixed-point 2835 Opts.FixedPoint = 2836 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2837 !Opts.CPlusPlus; 2838 Opts.PaddingOnUnsignedFixedPoint = 2839 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2840 OPT_fno_padding_on_unsigned_fixed_point, 2841 /*Default=*/false) && 2842 Opts.FixedPoint; 2843 2844 // Handle exception personalities 2845 Arg *A = Args.getLastArg( 2846 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2847 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2848 if (A) { 2849 const Option &Opt = A->getOption(); 2850 llvm::Triple T(TargetOpts.Triple); 2851 if (T.isWindowsMSVCEnvironment()) 2852 Diags.Report(diag::err_fe_invalid_exception_model) 2853 << Opt.getName() << T.str(); 2854 2855 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2856 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2857 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2858 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2859 } 2860 2861 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2862 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2863 2864 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2865 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2866 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2867 && Opts.OpenCLVersion == 200); 2868 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2869 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2870 2871 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2872 Args.hasArg(OPT_fconvergent_functions); 2873 2874 Opts.DoubleSquareBracketAttributes = 2875 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2876 OPT_fno_double_square_bracket_attributes, 2877 Opts.DoubleSquareBracketAttributes); 2878 2879 Opts.CPlusPlusModules = Opts.CPlusPlus20; 2880 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2881 Opts.Modules = 2882 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2883 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2884 Opts.ModulesDeclUse = 2885 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2886 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2887 // enter a different module (eg, when building a header unit). 2888 Opts.ModulesLocalVisibility = 2889 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2890 Opts.CPlusPlusModules; 2891 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2892 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2893 Opts.ModulesSearchAll = Opts.Modules && 2894 !Args.hasArg(OPT_fno_modules_search_all) && 2895 Args.hasArg(OPT_fmodules_search_all); 2896 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2897 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2898 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2899 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2900 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 2901 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2902 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2903 .Case("char", 1) 2904 .Case("short", 2) 2905 .Case("int", 4) 2906 .Default(0); 2907 if (Opts.WCharSize == 0) 2908 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2909 } 2910 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2911 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2912 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2913 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2914 if (!Opts.NoBuiltin) 2915 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2916 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2917 Opts.RelaxedTemplateTemplateArgs = 2918 Args.hasArg(OPT_frelaxed_template_template_args); 2919 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2920 Opts.AlignedAllocation = 2921 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2922 Opts.AlignedAllocation); 2923 Opts.AlignedAllocationUnavailable = 2924 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2925 Opts.NewAlignOverride = 2926 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2927 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2928 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2929 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2930 << A->getValue(); 2931 Opts.NewAlignOverride = 0; 2932 } 2933 Opts.ConceptSatisfactionCaching = 2934 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2935 if (Args.hasArg(OPT_fconcepts_ts)) 2936 Diags.Report(diag::warn_fe_concepts_ts_flag); 2937 // Recovery AST still heavily relies on dependent-type machinery. 2938 Opts.RecoveryAST = 2939 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, Opts.CPlusPlus); 2940 Opts.RecoveryASTType = Args.hasFlag( 2941 OPT_frecovery_ast_type, OPT_fno_recovery_ast_type, Opts.CPlusPlus); 2942 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2943 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2944 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2945 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2946 Opts.InstantiationDepth = 2947 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2948 Opts.ArrowDepth = 2949 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2950 Opts.ConstexprCallDepth = 2951 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2952 Opts.ConstexprStepLimit = 2953 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2954 Opts.EnableNewConstInterp = 2955 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2956 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2957 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2958 Opts.NumLargeByValueCopy = 2959 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2960 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2961 Opts.ObjCConstantStringClass = 2962 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2963 Opts.ObjCDefaultSynthProperties = 2964 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2965 Opts.EncodeExtendedBlockSig = 2966 Args.hasArg(OPT_fencode_extended_block_signature); 2967 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2968 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2969 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2970 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2971 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 2972 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2973 ? 128 2974 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2975 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2976 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2977 Opts.ROPI = Args.hasArg(OPT_fropi); 2978 Opts.RWPI = Args.hasArg(OPT_frwpi); 2979 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2980 Opts.Static = Args.hasArg(OPT_static_define); 2981 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2982 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2983 || Args.hasArg(OPT_fdump_record_layouts); 2984 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2985 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2986 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2987 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2988 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2989 if (Opts.FastRelaxedMath) 2990 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2991 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2992 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2993 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2994 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2995 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2996 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2997 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2998 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 2999 Opts.CurrentModule = Opts.ModuleName; 3000 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 3001 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 3002 llvm::sort(Opts.ModuleFeatures); 3003 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 3004 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 3005 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 3006 // is enabled. 3007 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 3008 | Opts.NativeHalfArgsAndReturns; 3009 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 3010 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 3011 3012 Opts.ArmSveVectorBits = 3013 getLastArgIntValue(Args, options::OPT_msve_vector_bits_EQ, 0, Diags); 3014 3015 // __declspec is enabled by default for the PS4 by the driver, and also 3016 // enabled for Microsoft Extensions or Borland Extensions, here. 3017 // 3018 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 3019 // CUDA extension. However, it is required for supporting 3020 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 3021 // been rewritten in terms of something more generic, remove the Opts.CUDA 3022 // term here. 3023 Opts.DeclSpecKeyword = 3024 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 3025 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 3026 3027 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 3028 switch (llvm::StringSwitch<unsigned>(A->getValue()) 3029 .Case("target", LangOptions::ASMM_Target) 3030 .Case("no", LangOptions::ASMM_Off) 3031 .Case("yes", LangOptions::ASMM_On) 3032 .Default(255)) { 3033 default: 3034 Diags.Report(diag::err_drv_invalid_value) 3035 << "-faddress-space-map-mangling=" << A->getValue(); 3036 break; 3037 case LangOptions::ASMM_Target: 3038 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 3039 break; 3040 case LangOptions::ASMM_On: 3041 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 3042 break; 3043 case LangOptions::ASMM_Off: 3044 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 3045 break; 3046 } 3047 } 3048 3049 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 3050 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 3051 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 3052 A->getValue()) 3053 .Case("single", 3054 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3055 .Case("multiple", 3056 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3057 .Case("virtual", 3058 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3059 .Default(LangOptions::PPTMK_BestCase); 3060 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3061 Diags.Report(diag::err_drv_invalid_value) 3062 << "-fms-memptr-rep=" << A->getValue(); 3063 3064 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3065 } 3066 3067 // Check for MS default calling conventions being specified. 3068 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3069 LangOptions::DefaultCallingConvention DefaultCC = 3070 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3071 .Case("cdecl", LangOptions::DCC_CDecl) 3072 .Case("fastcall", LangOptions::DCC_FastCall) 3073 .Case("stdcall", LangOptions::DCC_StdCall) 3074 .Case("vectorcall", LangOptions::DCC_VectorCall) 3075 .Case("regcall", LangOptions::DCC_RegCall) 3076 .Default(LangOptions::DCC_None); 3077 if (DefaultCC == LangOptions::DCC_None) 3078 Diags.Report(diag::err_drv_invalid_value) 3079 << "-fdefault-calling-conv=" << A->getValue(); 3080 3081 llvm::Triple T(TargetOpts.Triple); 3082 llvm::Triple::ArchType Arch = T.getArch(); 3083 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3084 DefaultCC == LangOptions::DCC_StdCall) && 3085 Arch != llvm::Triple::x86; 3086 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3087 DefaultCC == LangOptions::DCC_RegCall) && 3088 !T.isX86(); 3089 if (emitError) 3090 Diags.Report(diag::err_drv_argument_not_allowed_with) 3091 << A->getSpelling() << T.getTriple(); 3092 else 3093 Opts.setDefaultCallingConv(DefaultCC); 3094 } 3095 3096 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3097 // An explicit -fno-semantic-interposition infers dso_local. 3098 Opts.ExplicitNoSemanticInterposition = 3099 Args.hasArg(OPT_fno_semantic_interposition); 3100 3101 // -mrtd option 3102 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3103 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3104 Diags.Report(diag::err_drv_argument_not_allowed_with) 3105 << A->getSpelling() << "-fdefault-calling-conv"; 3106 else { 3107 llvm::Triple T(TargetOpts.Triple); 3108 if (T.getArch() != llvm::Triple::x86) 3109 Diags.Report(diag::err_drv_argument_not_allowed_with) 3110 << A->getSpelling() << T.getTriple(); 3111 else 3112 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3113 } 3114 } 3115 3116 // Check if -fopenmp is specified and set default version to 5.0. 3117 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 50 : 0; 3118 // Check if -fopenmp-simd is specified. 3119 bool IsSimdSpecified = 3120 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3121 /*Default=*/false); 3122 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3123 Opts.OpenMPUseTLS = 3124 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3125 Opts.OpenMPIsDevice = 3126 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3127 Opts.OpenMPIRBuilder = 3128 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3129 bool IsTargetSpecified = 3130 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3131 3132 if (Opts.OpenMP || Opts.OpenMPSimd) { 3133 if (int Version = getLastArgIntValue( 3134 Args, OPT_fopenmp_version_EQ, 3135 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3136 Opts.OpenMP = Version; 3137 // Provide diagnostic when a given target is not expected to be an OpenMP 3138 // device or host. 3139 if (!Opts.OpenMPIsDevice) { 3140 switch (T.getArch()) { 3141 default: 3142 break; 3143 // Add unsupported host targets here: 3144 case llvm::Triple::nvptx: 3145 case llvm::Triple::nvptx64: 3146 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3147 << TargetOpts.Triple; 3148 break; 3149 } 3150 } 3151 } 3152 3153 // Set the flag to prevent the implementation from emitting device exception 3154 // handling code for those requiring so. 3155 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3156 Opts.OpenCLCPlusPlus) { 3157 Opts.Exceptions = 0; 3158 Opts.CXXExceptions = 0; 3159 } 3160 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3161 Opts.OpenMPCUDANumSMs = 3162 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3163 Opts.OpenMPCUDANumSMs, Diags); 3164 Opts.OpenMPCUDABlocksPerSM = 3165 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3166 Opts.OpenMPCUDABlocksPerSM, Diags); 3167 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3168 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3169 Opts.OpenMPCUDAReductionBufNum, Diags); 3170 } 3171 3172 // Prevent auto-widening the representation of loop counters during an 3173 // OpenMP collapse clause. 3174 Opts.OpenMPOptimisticCollapse = 3175 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3176 3177 // Get the OpenMP target triples if any. 3178 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3179 3180 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3181 llvm::Triple TT(A->getValue(i)); 3182 3183 if (TT.getArch() == llvm::Triple::UnknownArch || 3184 !(TT.getArch() == llvm::Triple::aarch64 || 3185 TT.getArch() == llvm::Triple::ppc || 3186 TT.getArch() == llvm::Triple::ppc64 || 3187 TT.getArch() == llvm::Triple::ppc64le || 3188 TT.getArch() == llvm::Triple::nvptx || 3189 TT.getArch() == llvm::Triple::nvptx64 || 3190 TT.getArch() == llvm::Triple::amdgcn || 3191 TT.getArch() == llvm::Triple::x86 || 3192 TT.getArch() == llvm::Triple::x86_64)) 3193 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3194 else 3195 Opts.OMPTargetTriples.push_back(TT); 3196 } 3197 } 3198 3199 // Get OpenMP host file path if any and report if a non existent file is 3200 // found 3201 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3202 Opts.OMPHostIRFile = A->getValue(); 3203 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3204 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3205 << Opts.OMPHostIRFile; 3206 } 3207 3208 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3209 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3210 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3211 3212 // Set CUDA support for parallel execution of target regions for OpenMP target 3213 // NVPTX/AMDGCN if specified in options. 3214 Opts.OpenMPCUDATargetParallel = 3215 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3216 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3217 3218 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3219 Opts.OpenMPCUDAForceFullRuntime = 3220 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3221 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3222 3223 // Record whether the __DEPRECATED define was requested. 3224 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3225 OPT_fno_deprecated_macro, 3226 Opts.Deprecated); 3227 3228 // FIXME: Eliminate this dependency. 3229 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3230 OptSize = getOptimizationLevelSize(Args); 3231 Opts.Optimize = Opt != 0; 3232 Opts.OptimizeSize = OptSize != 0; 3233 3234 // This is the __NO_INLINE__ define, which just depends on things like the 3235 // optimization level and -fno-inline, not actually whether the backend has 3236 // inlining enabled. 3237 Opts.NoInlineDefine = !Opts.Optimize; 3238 if (Arg *InlineArg = Args.getLastArg( 3239 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3240 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3241 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3242 Opts.NoInlineDefine = true; 3243 3244 Opts.FastMath = 3245 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_fast_relaxed_math); 3246 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3247 Args.hasArg(OPT_ffast_math) || 3248 Args.hasArg(OPT_cl_finite_math_only) || 3249 Args.hasArg(OPT_cl_fast_relaxed_math); 3250 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3251 Args.hasArg(OPT_ffast_math) || 3252 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3253 Args.hasArg(OPT_cl_fast_relaxed_math); 3254 Opts.AllowFPReassoc = Args.hasArg(OPT_mreassociate) || 3255 Args.hasArg(OPT_menable_unsafe_fp_math) || 3256 Args.hasArg(OPT_ffast_math) || 3257 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3258 Args.hasArg(OPT_cl_fast_relaxed_math); 3259 Opts.NoHonorNaNs = 3260 Args.hasArg(OPT_menable_no_nans) || Args.hasArg(OPT_ffinite_math_only) || 3261 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_finite_math_only) || 3262 Args.hasArg(OPT_cl_fast_relaxed_math); 3263 Opts.NoHonorInfs = Args.hasArg(OPT_menable_no_infinities) || 3264 Args.hasArg(OPT_ffinite_math_only) || 3265 Args.hasArg(OPT_ffast_math) || 3266 Args.hasArg(OPT_cl_finite_math_only) || 3267 Args.hasArg(OPT_cl_fast_relaxed_math); 3268 Opts.NoSignedZero = Args.hasArg(OPT_fno_signed_zeros) || 3269 Args.hasArg(OPT_menable_unsafe_fp_math) || 3270 Args.hasArg(OPT_ffast_math) || 3271 Args.hasArg(OPT_cl_no_signed_zeros) || 3272 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3273 Args.hasArg(OPT_cl_fast_relaxed_math); 3274 Opts.AllowRecip = Args.hasArg(OPT_freciprocal_math) || 3275 Args.hasArg(OPT_menable_unsafe_fp_math) || 3276 Args.hasArg(OPT_ffast_math) || 3277 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3278 Args.hasArg(OPT_cl_fast_relaxed_math); 3279 // Currently there's no clang option to enable this individually 3280 Opts.ApproxFunc = Args.hasArg(OPT_menable_unsafe_fp_math) || 3281 Args.hasArg(OPT_ffast_math) || 3282 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3283 Args.hasArg(OPT_cl_fast_relaxed_math); 3284 3285 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3286 StringRef Val = A->getValue(); 3287 if (Val == "fast") 3288 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3289 else if (Val == "on") 3290 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3291 else if (Val == "off") 3292 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3293 else 3294 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3295 } 3296 3297 if (Args.hasArg(OPT_fexperimental_strict_floating_point)) 3298 Opts.ExpStrictFP = true; 3299 3300 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3301 if (Args.hasArg(OPT_frounding_math)) { 3302 FPRM = llvm::RoundingMode::Dynamic; 3303 } 3304 Opts.setFPRoundingMode(FPRM); 3305 3306 if (Args.hasArg(OPT_ftrapping_math)) { 3307 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3308 } 3309 3310 if (Args.hasArg(OPT_fno_trapping_math)) { 3311 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3312 } 3313 3314 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3315 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3316 StringRef Val = A->getValue(); 3317 if (Val.equals("ignore")) 3318 FPEB = LangOptions::FPE_Ignore; 3319 else if (Val.equals("maytrap")) 3320 FPEB = LangOptions::FPE_MayTrap; 3321 else if (Val.equals("strict")) 3322 FPEB = LangOptions::FPE_Strict; 3323 else 3324 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3325 } 3326 Opts.setFPExceptionMode(FPEB); 3327 3328 Opts.RetainCommentsFromSystemHeaders = 3329 Args.hasArg(OPT_fretain_comments_from_system_headers); 3330 3331 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3332 switch (SSP) { 3333 default: 3334 Diags.Report(diag::err_drv_invalid_value) 3335 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3336 break; 3337 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3338 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3339 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3340 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3341 } 3342 3343 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3344 StringRef Val = A->getValue(); 3345 if (Val == "uninitialized") 3346 Opts.setTrivialAutoVarInit( 3347 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3348 else if (Val == "zero") 3349 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3350 else if (Val == "pattern") 3351 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3352 else 3353 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3354 } 3355 3356 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init_stop_after)) { 3357 int Val = std::stoi(A->getValue()); 3358 Opts.TrivialAutoVarInitStopAfter = Val; 3359 } 3360 3361 // Parse -fsanitize= arguments. 3362 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3363 Diags, Opts.Sanitize); 3364 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3365 Opts.SanitizeAddressFieldPadding = 3366 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3367 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3368 std::vector<std::string> systemBlacklists = 3369 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3370 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3371 systemBlacklists.begin(), 3372 systemBlacklists.end()); 3373 3374 // -fxray-instrument 3375 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3376 Opts.XRayAlwaysEmitCustomEvents = 3377 Args.hasArg(OPT_fxray_always_emit_customevents); 3378 Opts.XRayAlwaysEmitTypedEvents = 3379 Args.hasArg(OPT_fxray_always_emit_typedevents); 3380 3381 // -fxray-{always,never}-instrument= filenames. 3382 Opts.XRayAlwaysInstrumentFiles = 3383 Args.getAllArgValues(OPT_fxray_always_instrument); 3384 Opts.XRayNeverInstrumentFiles = 3385 Args.getAllArgValues(OPT_fxray_never_instrument); 3386 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3387 3388 // -fforce-emit-vtables 3389 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3390 3391 // -fallow-editor-placeholders 3392 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3393 3394 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3395 3396 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3397 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3398 3399 StringRef Ver = A->getValue(); 3400 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3401 unsigned Major, Minor = 0; 3402 3403 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3404 // y or y.0 (4 <= y <= current version). 3405 if (!VerParts.first.startswith("0") && 3406 !VerParts.first.getAsInteger(10, Major) && 3407 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3408 (Major == 3 ? VerParts.second.size() == 1 && 3409 !VerParts.second.getAsInteger(10, Minor) 3410 : VerParts.first.size() == Ver.size() || 3411 VerParts.second == "0")) { 3412 // Got a valid version number. 3413 if (Major == 3 && Minor <= 8) 3414 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3415 else if (Major <= 4) 3416 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3417 else if (Major <= 6) 3418 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3419 else if (Major <= 7) 3420 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3421 else if (Major <= 9) 3422 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3423 } else if (Ver != "latest") { 3424 Diags.Report(diag::err_drv_invalid_value) 3425 << A->getAsString(Args) << A->getValue(); 3426 } 3427 } 3428 3429 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3430 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3431 Opts.PCHInstantiateTemplates = Args.hasArg(OPT_fpch_instantiate_templates); 3432 3433 Opts.MatrixTypes = Args.hasArg(OPT_fenable_matrix); 3434 3435 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3436 3437 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3438 StringRef SignScope = A->getValue(); 3439 3440 if (SignScope.equals_lower("none")) 3441 Opts.setSignReturnAddressScope( 3442 LangOptions::SignReturnAddressScopeKind::None); 3443 else if (SignScope.equals_lower("all")) 3444 Opts.setSignReturnAddressScope( 3445 LangOptions::SignReturnAddressScopeKind::All); 3446 else if (SignScope.equals_lower("non-leaf")) 3447 Opts.setSignReturnAddressScope( 3448 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3449 else 3450 Diags.Report(diag::err_drv_invalid_value) 3451 << A->getAsString(Args) << SignScope; 3452 3453 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3454 StringRef SignKey = A->getValue(); 3455 if (!SignScope.empty() && !SignKey.empty()) { 3456 if (SignKey.equals_lower("a_key")) 3457 Opts.setSignReturnAddressKey( 3458 LangOptions::SignReturnAddressKeyKind::AKey); 3459 else if (SignKey.equals_lower("b_key")) 3460 Opts.setSignReturnAddressKey( 3461 LangOptions::SignReturnAddressKeyKind::BKey); 3462 else 3463 Diags.Report(diag::err_drv_invalid_value) 3464 << A->getAsString(Args) << SignKey; 3465 } 3466 } 3467 } 3468 3469 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3470 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 3471 3472 Opts.CompatibilityQualifiedIdBlockParamTypeChecking = 3473 Args.hasArg(OPT_fcompatibility_qualified_id_block_param_type_checking); 3474 3475 Opts.RelativeCXXABIVTables = 3476 Args.hasFlag(OPT_fexperimental_relative_cxx_abi_vtables, 3477 OPT_fno_experimental_relative_cxx_abi_vtables, 3478 /*default=*/false); 3479 } 3480 3481 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3482 switch (Action) { 3483 case frontend::ASTDeclList: 3484 case frontend::ASTDump: 3485 case frontend::ASTPrint: 3486 case frontend::ASTView: 3487 case frontend::EmitAssembly: 3488 case frontend::EmitBC: 3489 case frontend::EmitHTML: 3490 case frontend::EmitLLVM: 3491 case frontend::EmitLLVMOnly: 3492 case frontend::EmitCodeGenOnly: 3493 case frontend::EmitObj: 3494 case frontend::FixIt: 3495 case frontend::GenerateModule: 3496 case frontend::GenerateModuleInterface: 3497 case frontend::GenerateHeaderModule: 3498 case frontend::GeneratePCH: 3499 case frontend::GenerateInterfaceStubs: 3500 case frontend::ParseSyntaxOnly: 3501 case frontend::ModuleFileInfo: 3502 case frontend::VerifyPCH: 3503 case frontend::PluginAction: 3504 case frontend::RewriteObjC: 3505 case frontend::RewriteTest: 3506 case frontend::RunAnalysis: 3507 case frontend::TemplightDump: 3508 case frontend::MigrateSource: 3509 return false; 3510 3511 case frontend::DumpCompilerOptions: 3512 case frontend::DumpRawTokens: 3513 case frontend::DumpTokens: 3514 case frontend::InitOnly: 3515 case frontend::PrintPreamble: 3516 case frontend::PrintPreprocessedInput: 3517 case frontend::RewriteMacros: 3518 case frontend::RunPreprocessorOnly: 3519 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3520 return true; 3521 } 3522 llvm_unreachable("invalid frontend action"); 3523 } 3524 3525 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3526 DiagnosticsEngine &Diags, 3527 frontend::ActionKind Action) { 3528 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3529 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3530 Args.hasArg(OPT_pch_through_hdrstop_use); 3531 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3532 Opts.PCHThroughHeader = 3533 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3534 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3535 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3536 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3537 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3538 3539 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3540 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3541 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3542 3543 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3544 auto Split = StringRef(A).split('='); 3545 Opts.MacroPrefixMap.insert( 3546 {std::string(Split.first), std::string(Split.second)}); 3547 } 3548 3549 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3550 StringRef Value(A->getValue()); 3551 size_t Comma = Value.find(','); 3552 unsigned Bytes = 0; 3553 unsigned EndOfLine = 0; 3554 3555 if (Comma == StringRef::npos || 3556 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3557 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3558 Diags.Report(diag::err_drv_preamble_format); 3559 else { 3560 Opts.PrecompiledPreambleBytes.first = Bytes; 3561 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3562 } 3563 } 3564 3565 // Add the __CET__ macro if a CFProtection option is set. 3566 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3567 StringRef Name = A->getValue(); 3568 if (Name == "branch") 3569 Opts.addMacroDef("__CET__=1"); 3570 else if (Name == "return") 3571 Opts.addMacroDef("__CET__=2"); 3572 else if (Name == "full") 3573 Opts.addMacroDef("__CET__=3"); 3574 } 3575 3576 // Add macros from the command line. 3577 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3578 if (A->getOption().matches(OPT_D)) 3579 Opts.addMacroDef(A->getValue()); 3580 else 3581 Opts.addMacroUndef(A->getValue()); 3582 } 3583 3584 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3585 3586 // Add the ordered list of -includes. 3587 for (const auto *A : Args.filtered(OPT_include)) 3588 Opts.Includes.emplace_back(A->getValue()); 3589 3590 for (const auto *A : Args.filtered(OPT_chain_include)) 3591 Opts.ChainedIncludes.emplace_back(A->getValue()); 3592 3593 for (const auto *A : Args.filtered(OPT_remap_file)) { 3594 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3595 3596 if (Split.second.empty()) { 3597 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3598 continue; 3599 } 3600 3601 Opts.addRemappedFile(Split.first, Split.second); 3602 } 3603 3604 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3605 StringRef Name = A->getValue(); 3606 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3607 .Case("libc++", ARCXX_libcxx) 3608 .Case("libstdc++", ARCXX_libstdcxx) 3609 .Case("none", ARCXX_nolib) 3610 .Default(~0U); 3611 if (Library == ~0U) 3612 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3613 else 3614 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3615 } 3616 3617 // Always avoid lexing editor placeholders when we're just running the 3618 // preprocessor as we never want to emit the 3619 // "editor placeholder in source file" error in PP only mode. 3620 if (isStrictlyPreprocessorAction(Action)) 3621 Opts.LexEditorPlaceholders = false; 3622 3623 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3624 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3625 } 3626 3627 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3628 ArgList &Args, 3629 frontend::ActionKind Action) { 3630 if (isStrictlyPreprocessorAction(Action)) 3631 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3632 else 3633 Opts.ShowCPP = 0; 3634 3635 Opts.ShowComments = Args.hasArg(OPT_C); 3636 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3637 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3638 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3639 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3640 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3641 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3642 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3643 } 3644 3645 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3646 DiagnosticsEngine &Diags) { 3647 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3648 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3649 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3650 StringRef Value = A->getValue(); 3651 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3652 .Case("default", llvm::EABI::Default) 3653 .Case("4", llvm::EABI::EABI4) 3654 .Case("5", llvm::EABI::EABI5) 3655 .Case("gnu", llvm::EABI::GNU) 3656 .Default(llvm::EABI::Unknown); 3657 if (EABIVersion == llvm::EABI::Unknown) 3658 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3659 << Value; 3660 else 3661 Opts.EABIVersion = EABIVersion; 3662 } 3663 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3664 Opts.TuneCPU = std::string(Args.getLastArgValue(OPT_tune_cpu)); 3665 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3666 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3667 Opts.LinkerVersion = 3668 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3669 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3670 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3671 Opts.NVPTXUseShortPointers = Args.hasFlag( 3672 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3673 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3674 llvm::VersionTuple Version; 3675 if (Version.tryParse(A->getValue())) 3676 Diags.Report(diag::err_drv_invalid_value) 3677 << A->getAsString(Args) << A->getValue(); 3678 else 3679 Opts.SDKVersion = Version; 3680 } 3681 } 3682 3683 bool CompilerInvocation::parseSimpleArgs(const ArgList &Args, 3684 DiagnosticsEngine &Diags) { 3685 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 3686 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 3687 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 3688 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 3689 this->KEYPATH = Args.hasArg(OPT_##ID) && IS_POSITIVE; 3690 3691 #define OPTION_WITH_MARSHALLING_STRING( \ 3692 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3693 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3694 TYPE, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 3695 { \ 3696 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, Args, Diags)) \ 3697 this->KEYPATH = static_cast<TYPE>(*MaybeValue); \ 3698 else \ 3699 this->KEYPATH = DEFAULT_VALUE; \ 3700 } 3701 3702 #include "clang/Driver/Options.inc" 3703 #undef OPTION_WITH_MARSHALLING_STRING 3704 #undef OPTION_WITH_MARSHALLING_FLAG 3705 return true; 3706 } 3707 3708 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3709 ArrayRef<const char *> CommandLineArgs, 3710 DiagnosticsEngine &Diags, 3711 const char *Argv0) { 3712 bool Success = true; 3713 3714 // Parse the arguments. 3715 const OptTable &Opts = getDriverOptTable(); 3716 const unsigned IncludedFlagsBitmask = options::CC1Option; 3717 unsigned MissingArgIndex, MissingArgCount; 3718 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3719 MissingArgCount, IncludedFlagsBitmask); 3720 LangOptions &LangOpts = *Res.getLangOpts(); 3721 3722 // Check for missing argument error. 3723 if (MissingArgCount) { 3724 Diags.Report(diag::err_drv_missing_argument) 3725 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3726 Success = false; 3727 } 3728 3729 // Issue errors on unknown arguments. 3730 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3731 auto ArgString = A->getAsString(Args); 3732 std::string Nearest; 3733 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3734 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3735 else 3736 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3737 << ArgString << Nearest; 3738 Success = false; 3739 } 3740 3741 Success &= Res.parseSimpleArgs(Args, Diags); 3742 3743 llvm::sys::Process::UseANSIEscapeCodes( 3744 Res.DiagnosticOpts->UseANSIEscapeCodes); 3745 3746 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3747 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3748 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3749 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3750 Res.getDependencyOutputOpts().Targets.empty()) { 3751 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3752 Success = false; 3753 } 3754 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3755 /*DefaultDiagColor=*/false); 3756 ParseCommentArgs(LangOpts.CommentOpts, Args); 3757 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3758 // FIXME: We shouldn't have to pass the DashX option around here 3759 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3760 LangOpts.IsHeaderFile); 3761 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3762 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3763 Res.getTargetOpts(), Res.getFrontendOpts()); 3764 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3765 Res.getFileSystemOpts().WorkingDir); 3766 llvm::Triple T(Res.getTargetOpts().Triple); 3767 if (DashX.getFormat() == InputKind::Precompiled || 3768 DashX.getLanguage() == Language::LLVM_IR) { 3769 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3770 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3771 // what the input type is. 3772 if (Args.hasArg(OPT_fobjc_arc)) 3773 LangOpts.ObjCAutoRefCount = 1; 3774 // PIClevel and PIELevel are needed during code generation and this should be 3775 // set regardless of the input type. 3776 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3777 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3778 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3779 Diags, LangOpts.Sanitize); 3780 } else { 3781 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3782 // FIXME: Should we really be calling this for an Language::Asm input? 3783 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3784 Res.getPreprocessorOpts(), Diags); 3785 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3786 LangOpts.ObjCExceptions = 1; 3787 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3788 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3789 // preprocessed input as we don't expect it to be used with -std=libc++ 3790 // anyway. 3791 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3792 } 3793 } 3794 3795 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3796 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3797 3798 LangOpts.FunctionAlignment = 3799 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3800 3801 if (LangOpts.CUDA) { 3802 // During CUDA device-side compilation, the aux triple is the 3803 // triple used for host compilation. 3804 if (LangOpts.CUDAIsDevice) 3805 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3806 } 3807 3808 // Set the triple of the host for OpenMP device compile. 3809 if (LangOpts.OpenMPIsDevice) 3810 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3811 3812 // FIXME: Override value name discarding when asan or msan is used because the 3813 // backend passes depend on the name of the alloca in order to print out 3814 // names. 3815 Res.getCodeGenOpts().DiscardValueNames &= 3816 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3817 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3818 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3819 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3820 3821 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3822 Res.getFrontendOpts().ProgramAction); 3823 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3824 Res.getFrontendOpts().ProgramAction); 3825 3826 // Turn on -Wspir-compat for SPIR target. 3827 if (T.isSPIR()) 3828 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3829 3830 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3831 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3832 !Res.getLangOpts()->Sanitize.empty()) { 3833 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3834 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3835 } 3836 3837 // Store the command-line for using in the CodeView backend. 3838 Res.getCodeGenOpts().Argv0 = Argv0; 3839 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 3840 3841 return Success; 3842 } 3843 3844 std::string CompilerInvocation::getModuleHash() const { 3845 // Note: For QoI reasons, the things we use as a hash here should all be 3846 // dumped via the -module-info flag. 3847 using llvm::hash_code; 3848 using llvm::hash_value; 3849 using llvm::hash_combine; 3850 using llvm::hash_combine_range; 3851 3852 // Start the signature with the compiler version. 3853 // FIXME: We'd rather use something more cryptographically sound than 3854 // CityHash, but this will do for now. 3855 hash_code code = hash_value(getClangFullRepositoryVersion()); 3856 3857 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3858 // and getClangFullRepositoryVersion() doesn't include git revision. 3859 code = hash_combine(code, serialization::VERSION_MAJOR, 3860 serialization::VERSION_MINOR); 3861 3862 // Extend the signature with the language options 3863 #define LANGOPT(Name, Bits, Default, Description) \ 3864 code = hash_combine(code, LangOpts->Name); 3865 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3866 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3867 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3868 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3869 #include "clang/Basic/LangOptions.def" 3870 3871 for (StringRef Feature : LangOpts->ModuleFeatures) 3872 code = hash_combine(code, Feature); 3873 3874 code = hash_combine(code, LangOpts->ObjCRuntime); 3875 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 3876 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 3877 3878 // Extend the signature with the target options. 3879 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3880 TargetOpts->ABI); 3881 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3882 code = hash_combine(code, FeatureAsWritten); 3883 3884 // Extend the signature with preprocessor options. 3885 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3886 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3887 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3888 3889 for (const auto &I : getPreprocessorOpts().Macros) { 3890 // If we're supposed to ignore this macro for the purposes of modules, 3891 // don't put it into the hash. 3892 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3893 // Check whether we're ignoring this macro. 3894 StringRef MacroDef = I.first; 3895 if (hsOpts.ModulesIgnoreMacros.count( 3896 llvm::CachedHashString(MacroDef.split('=').first))) 3897 continue; 3898 } 3899 3900 code = hash_combine(code, I.first, I.second); 3901 } 3902 3903 // Extend the signature with the sysroot and other header search options. 3904 code = hash_combine(code, hsOpts.Sysroot, 3905 hsOpts.ModuleFormat, 3906 hsOpts.UseDebugInfo, 3907 hsOpts.UseBuiltinIncludes, 3908 hsOpts.UseStandardSystemIncludes, 3909 hsOpts.UseStandardCXXIncludes, 3910 hsOpts.UseLibcxx, 3911 hsOpts.ModulesValidateDiagnosticOptions); 3912 code = hash_combine(code, hsOpts.ResourceDir); 3913 3914 if (hsOpts.ModulesStrictContextHash) { 3915 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3916 hsOpts.SystemHeaderPrefixes.end()); 3917 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3918 hsOpts.UserEntries.end()); 3919 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3920 hsOpts.UserEntries.size(), UEC); 3921 3922 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3923 #define DIAGOPT(Name, Bits, Default) \ 3924 code = hash_combine(code, diagOpts.Name); 3925 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3926 code = hash_combine(code, diagOpts.get##Name()); 3927 #include "clang/Basic/DiagnosticOptions.def" 3928 #undef DIAGOPT 3929 #undef ENUM_DIAGOPT 3930 } 3931 3932 // Extend the signature with the user build path. 3933 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3934 3935 // Extend the signature with the module file extensions. 3936 const FrontendOptions &frontendOpts = getFrontendOpts(); 3937 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3938 code = ext->hashExtension(code); 3939 } 3940 3941 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3942 // affects the debug info in the PCM. 3943 if (getCodeGenOpts().DebugTypeExtRefs) 3944 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3945 code = hash_combine(code, KeyValue.first, KeyValue.second); 3946 3947 // Extend the signature with the enabled sanitizers, if at least one is 3948 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3949 SanitizerSet SanHash = LangOpts->Sanitize; 3950 SanHash.clear(getPPTransparentSanitizers()); 3951 if (!SanHash.empty()) 3952 code = hash_combine(code, SanHash.Mask); 3953 3954 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3955 } 3956 3957 void CompilerInvocation::generateCC1CommandLine( 3958 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 3959 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 3960 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 3961 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 3962 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 3963 if ((FLAGS) & options::CC1Option && \ 3964 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) \ 3965 Args.push_back(SPELLING); 3966 3967 #define OPTION_WITH_MARSHALLING_STRING( \ 3968 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3969 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3970 NORMALIZER_RET_TY, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 3971 if (((FLAGS) & options::CC1Option) && \ 3972 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) { \ 3973 if (Option::KIND##Class == Option::SeparateClass) { \ 3974 Args.push_back(SPELLING); \ 3975 Args.push_back(DENORMALIZER(SA, TABLE_INDEX, this->KEYPATH)); \ 3976 } \ 3977 } 3978 3979 #include "clang/Driver/Options.inc" 3980 #undef OPTION_WITH_MARSHALLING_STRING 3981 #undef OPTION_WITH_MARSHALLING_FLAG 3982 } 3983 3984 namespace clang { 3985 3986 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3987 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3988 DiagnosticsEngine &Diags) { 3989 return createVFSFromCompilerInvocation(CI, Diags, 3990 llvm::vfs::getRealFileSystem()); 3991 } 3992 3993 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3994 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3995 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3996 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3997 return BaseFS; 3998 3999 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4000 // earlier vfs files are on the bottom 4001 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4002 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4003 Result->getBufferForFile(File); 4004 if (!Buffer) { 4005 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4006 continue; 4007 } 4008 4009 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4010 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4011 /*DiagContext*/ nullptr, Result); 4012 if (!FS) { 4013 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4014 continue; 4015 } 4016 4017 Result = FS; 4018 } 4019 return Result; 4020 } 4021 4022 } // namespace clang 4023