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