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 Opts.XRayTotalFunctionGroups = 1134 getLastArgIntValue(Args, OPT_fxray_function_groups, 1, Diags); 1135 Opts.XRaySelectedFunctionGroup = 1136 getLastArgIntValue(Args, OPT_fxray_selected_function_group, 0, Diags); 1137 1138 auto XRayInstrBundles = 1139 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1140 if (XRayInstrBundles.empty()) 1141 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1142 else 1143 for (const auto &A : XRayInstrBundles) 1144 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1145 Diags, Opts.XRayInstrumentationBundle); 1146 1147 Opts.PatchableFunctionEntryCount = 1148 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1149 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1150 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1151 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1152 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1153 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1154 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1155 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1156 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1157 1158 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1159 StringRef Name = A->getValue(); 1160 if (Name == "full") { 1161 Opts.CFProtectionReturn = 1; 1162 Opts.CFProtectionBranch = 1; 1163 } else if (Name == "return") 1164 Opts.CFProtectionReturn = 1; 1165 else if (Name == "branch") 1166 Opts.CFProtectionBranch = 1; 1167 else if (Name != "none") { 1168 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1169 Success = false; 1170 } 1171 } 1172 1173 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1174 OPT_compress_debug_sections_EQ)) { 1175 if (A->getOption().getID() == OPT_compress_debug_sections) { 1176 Opts.setCompressDebugSections(llvm::DebugCompressionType::Z); 1177 } else { 1178 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1179 .Case("none", llvm::DebugCompressionType::None) 1180 .Case("zlib", llvm::DebugCompressionType::Z) 1181 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1182 .Default(llvm::DebugCompressionType::None); 1183 Opts.setCompressDebugSections(DCT); 1184 } 1185 } 1186 1187 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1188 Opts.DebugCompilationDir = 1189 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1190 for (auto *A : 1191 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1192 CodeGenOptions::BitcodeFileToLink F; 1193 F.Filename = A->getValue(); 1194 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1195 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1196 // When linking CUDA bitcode, propagate function attributes so that 1197 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1198 F.PropagateAttrs = true; 1199 F.Internalize = true; 1200 } 1201 Opts.LinkBitcodeFiles.push_back(F); 1202 } 1203 Opts.SanitizeCoverageType = 1204 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1205 Opts.SanitizeCoverageIndirectCalls = 1206 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1207 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1208 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1209 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1210 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1211 Opts.SanitizeCoverage8bitCounters = 1212 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1213 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1214 Opts.SanitizeCoverageTracePCGuard = 1215 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1216 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1217 Opts.SanitizeCoverageInline8bitCounters = 1218 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1219 Opts.SanitizeCoverageInlineBoolFlag = 1220 Args.hasArg(OPT_fsanitize_coverage_inline_bool_flag); 1221 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1222 Opts.SanitizeCoverageStackDepth = 1223 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1224 Opts.SanitizeCoverageAllowlistFiles = 1225 Args.getAllArgValues(OPT_fsanitize_coverage_allowlist); 1226 Opts.SanitizeCoverageBlocklistFiles = 1227 Args.getAllArgValues(OPT_fsanitize_coverage_blocklist); 1228 Opts.SanitizeMemoryTrackOrigins = 1229 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1230 Opts.SanitizeMemoryUseAfterDtor = 1231 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1232 OPT_fno_sanitize_memory_use_after_dtor, 1233 false); 1234 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1235 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1236 Opts.SanitizeCfiICallGeneralizePointers = 1237 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1238 Opts.SanitizeCfiCanonicalJumpTables = 1239 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1240 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1241 if (Arg *A = Args.getLastArg( 1242 OPT_fsanitize_address_poison_custom_array_cookie, 1243 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1244 Opts.SanitizeAddressPoisonCustomArrayCookie = 1245 A->getOption().getID() == 1246 OPT_fsanitize_address_poison_custom_array_cookie; 1247 } 1248 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1249 OPT_fno_sanitize_address_use_after_scope)) { 1250 Opts.SanitizeAddressUseAfterScope = 1251 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1252 } 1253 Opts.SanitizeAddressGlobalsDeadStripping = 1254 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1255 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1256 OPT_fno_sanitize_address_use_odr_indicator)) { 1257 Opts.SanitizeAddressUseOdrIndicator = 1258 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1259 } 1260 Opts.SSPBufferSize = 1261 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1262 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1263 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1264 StringRef Val = A->getValue(); 1265 unsigned StackAlignment = Opts.StackAlignment; 1266 Val.getAsInteger(10, StackAlignment); 1267 Opts.StackAlignment = StackAlignment; 1268 } 1269 1270 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1271 StringRef Val = A->getValue(); 1272 unsigned StackProbeSize = Opts.StackProbeSize; 1273 Val.getAsInteger(0, StackProbeSize); 1274 Opts.StackProbeSize = StackProbeSize; 1275 } 1276 1277 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1278 1279 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1280 1281 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1282 StringRef Name = A->getValue(); 1283 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1284 .Case("legacy", CodeGenOptions::Legacy) 1285 .Case("non-legacy", CodeGenOptions::NonLegacy) 1286 .Case("mixed", CodeGenOptions::Mixed) 1287 .Default(~0U); 1288 if (Method == ~0U) { 1289 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1290 Success = false; 1291 } else { 1292 Opts.setObjCDispatchMethod( 1293 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1294 } 1295 } 1296 1297 1298 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1299 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1300 1301 if (Args.getLastArg(OPT_femulated_tls) || 1302 Args.getLastArg(OPT_fno_emulated_tls)) { 1303 Opts.ExplicitEmulatedTLS = true; 1304 Opts.EmulatedTLS = 1305 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1306 } 1307 1308 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1309 StringRef Name = A->getValue(); 1310 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1311 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1312 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1313 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1314 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1315 .Default(~0U); 1316 if (Model == ~0U) { 1317 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1318 Success = false; 1319 } else { 1320 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1321 } 1322 } 1323 1324 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1325 1326 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1327 StringRef Val = A->getValue(); 1328 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1329 if (!Opts.FPDenormalMode.isValid()) 1330 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1331 } 1332 1333 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1334 StringRef Val = A->getValue(); 1335 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1336 if (!Opts.FP32DenormalMode.isValid()) 1337 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1338 } 1339 1340 // X86_32 has -fppc-struct-return and -freg-struct-return. 1341 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1342 if (Arg *A = 1343 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1344 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1345 // TODO: We might want to consider enabling these options on AIX in the 1346 // future. 1347 if (T.isOSAIX()) 1348 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1349 << A->getSpelling() << T.str(); 1350 1351 const Option &O = A->getOption(); 1352 if (O.matches(OPT_fpcc_struct_return) || 1353 O.matches(OPT_maix_struct_return)) { 1354 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1355 } else { 1356 assert(O.matches(OPT_freg_struct_return) || 1357 O.matches(OPT_msvr4_struct_return)); 1358 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1359 } 1360 } 1361 1362 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1363 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1364 bool NeedLocTracking = false; 1365 1366 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1367 if (!Opts.OptRecordFile.empty()) 1368 NeedLocTracking = true; 1369 1370 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1371 Opts.OptRecordPasses = A->getValue(); 1372 NeedLocTracking = true; 1373 } 1374 1375 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1376 Opts.OptRecordFormat = A->getValue(); 1377 NeedLocTracking = true; 1378 } 1379 1380 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1381 Opts.OptimizationRemarkPattern = 1382 GenerateOptimizationRemarkRegex(Diags, Args, A); 1383 NeedLocTracking = true; 1384 } 1385 1386 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1387 Opts.OptimizationRemarkMissedPattern = 1388 GenerateOptimizationRemarkRegex(Diags, Args, A); 1389 NeedLocTracking = true; 1390 } 1391 1392 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1393 Opts.OptimizationRemarkAnalysisPattern = 1394 GenerateOptimizationRemarkRegex(Diags, Args, A); 1395 NeedLocTracking = true; 1396 } 1397 1398 Opts.DiagnosticsWithHotness = 1399 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1400 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1401 bool UsingProfile = UsingSampleProfile || 1402 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1403 1404 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1405 // An IR file will contain PGO as metadata 1406 IK.getLanguage() != Language::LLVM_IR) 1407 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1408 << "-fdiagnostics-show-hotness"; 1409 1410 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1411 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1412 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1413 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1414 << "-fdiagnostics-hotness-threshold="; 1415 1416 // If the user requested to use a sample profile for PGO, then the 1417 // backend will need to track source location information so the profile 1418 // can be incorporated into the IR. 1419 if (UsingSampleProfile) 1420 NeedLocTracking = true; 1421 1422 // If the user requested a flag that requires source locations available in 1423 // the backend, make sure that the backend tracks source location information. 1424 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1425 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1426 1427 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1428 1429 // Parse -fsanitize-recover= arguments. 1430 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1431 parseSanitizerKinds("-fsanitize-recover=", 1432 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1433 Opts.SanitizeRecover); 1434 parseSanitizerKinds("-fsanitize-trap=", 1435 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1436 Opts.SanitizeTrap); 1437 1438 Opts.CudaGpuBinaryFileName = 1439 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1440 1441 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1442 1443 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1444 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1445 1446 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1447 1448 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1449 1450 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1451 1452 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1453 1454 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1455 1456 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1457 1458 Opts.SymbolPartition = 1459 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1460 1461 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1462 1463 Opts.PassByValueIsNoAlias = Args.hasArg(OPT_fpass_by_value_is_noalias); 1464 return Success; 1465 } 1466 1467 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1468 ArgList &Args) { 1469 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1470 Opts.Targets = Args.getAllArgValues(OPT_MT); 1471 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1472 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1473 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1474 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1475 Opts.HeaderIncludeOutputFile = 1476 std::string(Args.getLastArgValue(OPT_header_include_file)); 1477 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1478 if (Args.hasArg(OPT_show_includes)) { 1479 // Writing both /showIncludes and preprocessor output to stdout 1480 // would produce interleaved output, so use stderr for /showIncludes. 1481 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1482 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1483 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1484 else 1485 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1486 } else { 1487 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1488 } 1489 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1490 Opts.ModuleDependencyOutputDir = 1491 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1492 if (Args.hasArg(OPT_MV)) 1493 Opts.OutputFormat = DependencyOutputFormat::NMake; 1494 // Add sanitizer blacklists as extra dependencies. 1495 // They won't be discovered by the regular preprocessor, so 1496 // we let make / ninja to know about this implicit dependency. 1497 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1498 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1499 StringRef Val = A->getValue(); 1500 if (Val.find('=') == StringRef::npos) 1501 Opts.ExtraDeps.push_back(std::string(Val)); 1502 } 1503 if (Opts.IncludeSystemHeaders) { 1504 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1505 StringRef Val = A->getValue(); 1506 if (Val.find('=') == StringRef::npos) 1507 Opts.ExtraDeps.push_back(std::string(Val)); 1508 } 1509 } 1510 } 1511 1512 // Propagate the extra dependencies. 1513 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1514 Opts.ExtraDeps.push_back(A->getValue()); 1515 } 1516 1517 // Only the -fmodule-file=<file> form. 1518 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1519 StringRef Val = A->getValue(); 1520 if (Val.find('=') == StringRef::npos) 1521 Opts.ExtraDeps.push_back(std::string(Val)); 1522 } 1523 } 1524 1525 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1526 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1527 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1528 // Support both clang's -f[no-]color-diagnostics and gcc's 1529 // -f[no-]diagnostics-colors[=never|always|auto]. 1530 enum { 1531 Colors_On, 1532 Colors_Off, 1533 Colors_Auto 1534 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1535 for (auto *A : Args) { 1536 const Option &O = A->getOption(); 1537 if (O.matches(options::OPT_fcolor_diagnostics) || 1538 O.matches(options::OPT_fdiagnostics_color)) { 1539 ShowColors = Colors_On; 1540 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1541 O.matches(options::OPT_fno_diagnostics_color)) { 1542 ShowColors = Colors_Off; 1543 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1544 StringRef Value(A->getValue()); 1545 if (Value == "always") 1546 ShowColors = Colors_On; 1547 else if (Value == "never") 1548 ShowColors = Colors_Off; 1549 else if (Value == "auto") 1550 ShowColors = Colors_Auto; 1551 } 1552 } 1553 return ShowColors == Colors_On || 1554 (ShowColors == Colors_Auto && 1555 llvm::sys::Process::StandardErrHasColors()); 1556 } 1557 1558 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1559 DiagnosticsEngine *Diags) { 1560 bool Success = true; 1561 for (const auto &Prefix : VerifyPrefixes) { 1562 // Every prefix must start with a letter and contain only alphanumeric 1563 // characters, hyphens, and underscores. 1564 auto BadChar = llvm::find_if(Prefix, [](char C) { 1565 return !isAlphanumeric(C) && C != '-' && C != '_'; 1566 }); 1567 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1568 Success = false; 1569 if (Diags) { 1570 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1571 Diags->Report(diag::note_drv_verify_prefix_spelling); 1572 } 1573 } 1574 } 1575 return Success; 1576 } 1577 1578 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1579 DiagnosticsEngine *Diags, 1580 bool DefaultDiagColor) { 1581 bool Success = true; 1582 1583 Opts.DiagnosticLogFile = 1584 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1585 if (Arg *A = 1586 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1587 Opts.DiagnosticSerializationFile = A->getValue(); 1588 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1589 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1590 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1591 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1592 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1593 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1594 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1595 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1596 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1597 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1598 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1599 1600 // Default behavior is to not to show note include stacks. 1601 Opts.ShowNoteIncludeStack = false; 1602 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1603 OPT_fno_diagnostics_show_note_include_stack)) 1604 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1605 Opts.ShowNoteIncludeStack = true; 1606 1607 StringRef ShowOverloads = 1608 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1609 if (ShowOverloads == "best") 1610 Opts.setShowOverloads(Ovl_Best); 1611 else if (ShowOverloads == "all") 1612 Opts.setShowOverloads(Ovl_All); 1613 else { 1614 Success = false; 1615 if (Diags) 1616 Diags->Report(diag::err_drv_invalid_value) 1617 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1618 << ShowOverloads; 1619 } 1620 1621 StringRef ShowCategory = 1622 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1623 if (ShowCategory == "none") 1624 Opts.ShowCategories = 0; 1625 else if (ShowCategory == "id") 1626 Opts.ShowCategories = 1; 1627 else if (ShowCategory == "name") 1628 Opts.ShowCategories = 2; 1629 else { 1630 Success = false; 1631 if (Diags) 1632 Diags->Report(diag::err_drv_invalid_value) 1633 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1634 << ShowCategory; 1635 } 1636 1637 StringRef Format = 1638 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1639 if (Format == "clang") 1640 Opts.setFormat(DiagnosticOptions::Clang); 1641 else if (Format == "msvc") 1642 Opts.setFormat(DiagnosticOptions::MSVC); 1643 else if (Format == "msvc-fallback") { 1644 Opts.setFormat(DiagnosticOptions::MSVC); 1645 Opts.CLFallbackMode = true; 1646 } else if (Format == "vi") 1647 Opts.setFormat(DiagnosticOptions::Vi); 1648 else { 1649 Success = false; 1650 if (Diags) 1651 Diags->Report(diag::err_drv_invalid_value) 1652 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1653 << Format; 1654 } 1655 1656 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1657 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1658 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1659 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1660 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1661 if (Args.hasArg(OPT_verify)) 1662 Opts.VerifyPrefixes.push_back("expected"); 1663 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1664 // then sort it to prepare for fast lookup using std::binary_search. 1665 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1666 Opts.VerifyDiagnostics = false; 1667 Success = false; 1668 } 1669 else 1670 llvm::sort(Opts.VerifyPrefixes); 1671 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1672 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1673 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1674 Diags, DiagMask); 1675 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1676 DiagMask = DiagnosticLevelMask::All; 1677 Opts.setVerifyIgnoreUnexpected(DiagMask); 1678 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1679 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1680 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1681 Opts.MacroBacktraceLimit = 1682 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1683 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1684 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1685 Args, OPT_ftemplate_backtrace_limit, 1686 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1687 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1688 Args, OPT_fconstexpr_backtrace_limit, 1689 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1690 Opts.SpellCheckingLimit = getLastArgIntValue( 1691 Args, OPT_fspell_checking_limit, 1692 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1693 Opts.SnippetLineLimit = getLastArgIntValue( 1694 Args, OPT_fcaret_diagnostics_max_lines, 1695 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1696 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1697 DiagnosticOptions::DefaultTabStop, Diags); 1698 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1699 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1700 if (Diags) 1701 Diags->Report(diag::warn_ignoring_ftabstop_value) 1702 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1703 } 1704 Opts.MessageLength = 1705 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1706 1707 Opts.UndefPrefixes = Args.getAllArgValues(OPT_Wundef_prefix_EQ); 1708 1709 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1710 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1711 1712 return Success; 1713 } 1714 1715 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1716 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1717 } 1718 1719 /// Parse the argument to the -ftest-module-file-extension 1720 /// command-line argument. 1721 /// 1722 /// \returns true on error, false on success. 1723 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1724 std::string &BlockName, 1725 unsigned &MajorVersion, 1726 unsigned &MinorVersion, 1727 bool &Hashed, 1728 std::string &UserInfo) { 1729 SmallVector<StringRef, 5> Args; 1730 Arg.split(Args, ':', 5); 1731 if (Args.size() < 5) 1732 return true; 1733 1734 BlockName = std::string(Args[0]); 1735 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1736 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1737 if (Args[3].getAsInteger(2, Hashed)) return true; 1738 if (Args.size() > 4) 1739 UserInfo = std::string(Args[4]); 1740 return false; 1741 } 1742 1743 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1744 DiagnosticsEngine &Diags, 1745 bool &IsHeaderFile) { 1746 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1747 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1748 switch (A->getOption().getID()) { 1749 default: 1750 llvm_unreachable("Invalid option in group!"); 1751 case OPT_ast_list: 1752 Opts.ProgramAction = frontend::ASTDeclList; break; 1753 case OPT_ast_dump_all_EQ: 1754 case OPT_ast_dump_EQ: { 1755 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1756 .CaseLower("default", ADOF_Default) 1757 .CaseLower("json", ADOF_JSON) 1758 .Default(std::numeric_limits<unsigned>::max()); 1759 1760 if (Val != std::numeric_limits<unsigned>::max()) 1761 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1762 else { 1763 Diags.Report(diag::err_drv_invalid_value) 1764 << A->getAsString(Args) << A->getValue(); 1765 Opts.ASTDumpFormat = ADOF_Default; 1766 } 1767 LLVM_FALLTHROUGH; 1768 } 1769 case OPT_ast_dump: 1770 case OPT_ast_dump_all: 1771 case OPT_ast_dump_lookups: 1772 case OPT_ast_dump_decl_types: 1773 Opts.ProgramAction = frontend::ASTDump; break; 1774 case OPT_ast_print: 1775 Opts.ProgramAction = frontend::ASTPrint; break; 1776 case OPT_ast_view: 1777 Opts.ProgramAction = frontend::ASTView; break; 1778 case OPT_compiler_options_dump: 1779 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1780 case OPT_dump_raw_tokens: 1781 Opts.ProgramAction = frontend::DumpRawTokens; break; 1782 case OPT_dump_tokens: 1783 Opts.ProgramAction = frontend::DumpTokens; break; 1784 case OPT_S: 1785 Opts.ProgramAction = frontend::EmitAssembly; break; 1786 case OPT_emit_llvm_bc: 1787 Opts.ProgramAction = frontend::EmitBC; break; 1788 case OPT_emit_html: 1789 Opts.ProgramAction = frontend::EmitHTML; break; 1790 case OPT_emit_llvm: 1791 Opts.ProgramAction = frontend::EmitLLVM; break; 1792 case OPT_emit_llvm_only: 1793 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1794 case OPT_emit_codegen_only: 1795 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1796 case OPT_emit_obj: 1797 Opts.ProgramAction = frontend::EmitObj; break; 1798 case OPT_fixit_EQ: 1799 Opts.FixItSuffix = A->getValue(); 1800 LLVM_FALLTHROUGH; 1801 case OPT_fixit: 1802 Opts.ProgramAction = frontend::FixIt; break; 1803 case OPT_emit_module: 1804 Opts.ProgramAction = frontend::GenerateModule; break; 1805 case OPT_emit_module_interface: 1806 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1807 case OPT_emit_header_module: 1808 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1809 case OPT_emit_pch: 1810 Opts.ProgramAction = frontend::GeneratePCH; break; 1811 case OPT_emit_interface_stubs: { 1812 StringRef ArgStr = 1813 Args.hasArg(OPT_interface_stub_version_EQ) 1814 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1815 : "experimental-ifs-v2"; 1816 if (ArgStr == "experimental-yaml-elf-v1" || 1817 ArgStr == "experimental-ifs-v1" || 1818 ArgStr == "experimental-tapi-elf-v1") { 1819 std::string ErrorMessage = 1820 "Invalid interface stub format: " + ArgStr.str() + 1821 " is deprecated."; 1822 Diags.Report(diag::err_drv_invalid_value) 1823 << "Must specify a valid interface stub format type, ie: " 1824 "-interface-stub-version=experimental-ifs-v2" 1825 << ErrorMessage; 1826 } else if (!ArgStr.startswith("experimental-ifs-")) { 1827 std::string ErrorMessage = 1828 "Invalid interface stub format: " + ArgStr.str() + "."; 1829 Diags.Report(diag::err_drv_invalid_value) 1830 << "Must specify a valid interface stub format type, ie: " 1831 "-interface-stub-version=experimental-ifs-v2" 1832 << ErrorMessage; 1833 } else { 1834 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1835 } 1836 break; 1837 } 1838 case OPT_init_only: 1839 Opts.ProgramAction = frontend::InitOnly; break; 1840 case OPT_fsyntax_only: 1841 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1842 case OPT_module_file_info: 1843 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1844 case OPT_verify_pch: 1845 Opts.ProgramAction = frontend::VerifyPCH; break; 1846 case OPT_print_preamble: 1847 Opts.ProgramAction = frontend::PrintPreamble; break; 1848 case OPT_E: 1849 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1850 case OPT_templight_dump: 1851 Opts.ProgramAction = frontend::TemplightDump; break; 1852 case OPT_rewrite_macros: 1853 Opts.ProgramAction = frontend::RewriteMacros; break; 1854 case OPT_rewrite_objc: 1855 Opts.ProgramAction = frontend::RewriteObjC; break; 1856 case OPT_rewrite_test: 1857 Opts.ProgramAction = frontend::RewriteTest; break; 1858 case OPT_analyze: 1859 Opts.ProgramAction = frontend::RunAnalysis; break; 1860 case OPT_migrate: 1861 Opts.ProgramAction = frontend::MigrateSource; break; 1862 case OPT_Eonly: 1863 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1864 case OPT_print_dependency_directives_minimized_source: 1865 Opts.ProgramAction = 1866 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1867 break; 1868 } 1869 } 1870 1871 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1872 Opts.Plugins.emplace_back(A->getValue(0)); 1873 Opts.ProgramAction = frontend::PluginAction; 1874 Opts.ActionName = A->getValue(); 1875 } 1876 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1877 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1878 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1879 1880 for (const std::string &Arg : 1881 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1882 std::string BlockName; 1883 unsigned MajorVersion; 1884 unsigned MinorVersion; 1885 bool Hashed; 1886 std::string UserInfo; 1887 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1888 MinorVersion, Hashed, UserInfo)) { 1889 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1890 1891 continue; 1892 } 1893 1894 // Add the testing module file extension. 1895 Opts.ModuleFileExtensions.push_back( 1896 std::make_shared<TestModuleFileExtension>( 1897 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1898 } 1899 1900 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1901 Opts.CodeCompletionAt = 1902 ParsedSourceLocation::FromString(A->getValue()); 1903 if (Opts.CodeCompletionAt.FileName.empty()) 1904 Diags.Report(diag::err_drv_invalid_value) 1905 << A->getAsString(Args) << A->getValue(); 1906 } 1907 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1908 1909 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1910 Opts.Plugins = Args.getAllArgValues(OPT_load); 1911 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1912 Opts.ShowHelp = Args.hasArg(OPT_help); 1913 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1914 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1915 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1916 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1917 Opts.TimeTraceGranularity = getLastArgIntValue( 1918 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1919 Opts.ShowVersion = Args.hasArg(OPT_version); 1920 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1921 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1922 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1923 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1924 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1925 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1926 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1927 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1928 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1929 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1930 Opts.ASTDumpDeclTypes = Args.hasArg(OPT_ast_dump_decl_types); 1931 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1932 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1933 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1934 // Only the -fmodule-file=<file> form. 1935 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1936 StringRef Val = A->getValue(); 1937 if (Val.find('=') == StringRef::npos) 1938 Opts.ModuleFiles.push_back(std::string(Val)); 1939 } 1940 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1941 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1942 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1943 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1944 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 1945 1946 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1947 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1948 << "-emit-module"; 1949 1950 Opts.CodeCompleteOpts.IncludeMacros 1951 = Args.hasArg(OPT_code_completion_macros); 1952 Opts.CodeCompleteOpts.IncludeCodePatterns 1953 = Args.hasArg(OPT_code_completion_patterns); 1954 Opts.CodeCompleteOpts.IncludeGlobals 1955 = !Args.hasArg(OPT_no_code_completion_globals); 1956 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1957 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1958 Opts.CodeCompleteOpts.IncludeBriefComments 1959 = Args.hasArg(OPT_code_completion_brief_comments); 1960 Opts.CodeCompleteOpts.IncludeFixIts 1961 = Args.hasArg(OPT_code_completion_with_fixits); 1962 1963 Opts.OverrideRecordLayoutsFile = 1964 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1965 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1966 if (Args.hasArg(OPT_aux_target_cpu)) 1967 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1968 if (Args.hasArg(OPT_aux_target_feature)) 1969 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1970 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1971 1972 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1973 OPT_arcmt_modify, 1974 OPT_arcmt_migrate)) { 1975 switch (A->getOption().getID()) { 1976 default: 1977 llvm_unreachable("missed a case"); 1978 case OPT_arcmt_check: 1979 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1980 break; 1981 case OPT_arcmt_modify: 1982 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1983 break; 1984 case OPT_arcmt_migrate: 1985 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1986 break; 1987 } 1988 } 1989 Opts.MTMigrateDir = 1990 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1991 Opts.ARCMTMigrateReportOut = 1992 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1993 Opts.ARCMTMigrateEmitARCErrors 1994 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1995 1996 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1997 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1998 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1999 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 2000 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 2001 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 2002 if (Args.hasArg(OPT_objcmt_migrate_property)) 2003 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 2004 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 2005 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 2006 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 2007 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 2008 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 2009 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 2010 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 2011 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 2012 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 2013 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 2014 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 2015 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 2016 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 2017 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 2018 if (Args.hasArg(OPT_objcmt_atomic_property)) 2019 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 2020 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 2021 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 2022 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 2023 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 2024 if (Args.hasArg(OPT_objcmt_migrate_all)) 2025 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 2026 2027 Opts.ObjCMTWhiteListPath = 2028 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 2029 2030 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2031 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2032 Diags.Report(diag::err_drv_argument_not_allowed_with) 2033 << "ARC migration" << "ObjC migration"; 2034 } 2035 2036 InputKind DashX(Language::Unknown); 2037 if (const Arg *A = Args.getLastArg(OPT_x)) { 2038 StringRef XValue = A->getValue(); 2039 2040 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2041 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2042 bool Preprocessed = XValue.consume_back("-cpp-output"); 2043 bool ModuleMap = XValue.consume_back("-module-map"); 2044 IsHeaderFile = !Preprocessed && !ModuleMap && 2045 XValue != "precompiled-header" && 2046 XValue.consume_back("-header"); 2047 2048 // Principal languages. 2049 DashX = llvm::StringSwitch<InputKind>(XValue) 2050 .Case("c", Language::C) 2051 .Case("cl", Language::OpenCL) 2052 .Case("cuda", Language::CUDA) 2053 .Case("hip", Language::HIP) 2054 .Case("c++", Language::CXX) 2055 .Case("objective-c", Language::ObjC) 2056 .Case("objective-c++", Language::ObjCXX) 2057 .Case("renderscript", Language::RenderScript) 2058 .Default(Language::Unknown); 2059 2060 // "objc[++]-cpp-output" is an acceptable synonym for 2061 // "objective-c[++]-cpp-output". 2062 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2063 DashX = llvm::StringSwitch<InputKind>(XValue) 2064 .Case("objc", Language::ObjC) 2065 .Case("objc++", Language::ObjCXX) 2066 .Default(Language::Unknown); 2067 2068 // Some special cases cannot be combined with suffixes. 2069 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2070 DashX = llvm::StringSwitch<InputKind>(XValue) 2071 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2072 .Case("assembler-with-cpp", Language::Asm) 2073 .Cases("ast", "pcm", "precompiled-header", 2074 InputKind(Language::Unknown, InputKind::Precompiled)) 2075 .Case("ir", Language::LLVM_IR) 2076 .Default(Language::Unknown); 2077 2078 if (DashX.isUnknown()) 2079 Diags.Report(diag::err_drv_invalid_value) 2080 << A->getAsString(Args) << A->getValue(); 2081 2082 if (Preprocessed) 2083 DashX = DashX.getPreprocessed(); 2084 if (ModuleMap) 2085 DashX = DashX.withFormat(InputKind::ModuleMap); 2086 } 2087 2088 // '-' is the default input if none is given. 2089 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2090 Opts.Inputs.clear(); 2091 if (Inputs.empty()) 2092 Inputs.push_back("-"); 2093 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2094 InputKind IK = DashX; 2095 if (IK.isUnknown()) { 2096 IK = FrontendOptions::getInputKindForExtension( 2097 StringRef(Inputs[i]).rsplit('.').second); 2098 // FIXME: Warn on this? 2099 if (IK.isUnknown()) 2100 IK = Language::C; 2101 // FIXME: Remove this hack. 2102 if (i == 0) 2103 DashX = IK; 2104 } 2105 2106 bool IsSystem = false; 2107 2108 // The -emit-module action implicitly takes a module map. 2109 if (Opts.ProgramAction == frontend::GenerateModule && 2110 IK.getFormat() == InputKind::Source) { 2111 IK = IK.withFormat(InputKind::ModuleMap); 2112 IsSystem = Opts.IsSystemModule; 2113 } 2114 2115 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2116 } 2117 2118 return DashX; 2119 } 2120 2121 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2122 void *MainAddr) { 2123 std::string ClangExecutable = 2124 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2125 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2126 } 2127 2128 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2129 const std::string &WorkingDir) { 2130 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2131 Opts.Verbose = Args.hasArg(OPT_v); 2132 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2133 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2134 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2135 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2136 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2137 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2138 2139 // Canonicalize -fmodules-cache-path before storing it. 2140 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2141 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2142 if (WorkingDir.empty()) 2143 llvm::sys::fs::make_absolute(P); 2144 else 2145 llvm::sys::fs::make_absolute(WorkingDir, P); 2146 } 2147 llvm::sys::path::remove_dots(P); 2148 Opts.ModuleCachePath = std::string(P.str()); 2149 2150 Opts.ModuleUserBuildPath = 2151 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2152 // Only the -fmodule-file=<name>=<file> form. 2153 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2154 StringRef Val = A->getValue(); 2155 if (Val.find('=') != StringRef::npos){ 2156 auto Split = Val.split('='); 2157 Opts.PrebuiltModuleFiles.insert( 2158 {std::string(Split.first), std::string(Split.second)}); 2159 } 2160 } 2161 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2162 Opts.AddPrebuiltModulePath(A->getValue()); 2163 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2164 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2165 Opts.ModulesValidateDiagnosticOptions = 2166 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2167 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2168 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2169 Opts.ModuleCachePruneInterval = 2170 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2171 Opts.ModuleCachePruneAfter = 2172 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2173 Opts.ModulesValidateOncePerBuildSession = 2174 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2175 Opts.BuildSessionTimestamp = 2176 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2177 Opts.ModulesValidateSystemHeaders = 2178 Args.hasArg(OPT_fmodules_validate_system_headers); 2179 Opts.ValidateASTInputFilesContent = 2180 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2181 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2182 Opts.ModuleFormat = A->getValue(); 2183 2184 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2185 StringRef MacroDef = A->getValue(); 2186 Opts.ModulesIgnoreMacros.insert( 2187 llvm::CachedHashString(MacroDef.split('=').first)); 2188 } 2189 2190 // Add -I..., -F..., and -index-header-map options in order. 2191 bool IsIndexHeaderMap = false; 2192 bool IsSysrootSpecified = 2193 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2194 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2195 if (A->getOption().matches(OPT_index_header_map)) { 2196 // -index-header-map applies to the next -I or -F. 2197 IsIndexHeaderMap = true; 2198 continue; 2199 } 2200 2201 frontend::IncludeDirGroup Group = 2202 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2203 2204 bool IsFramework = A->getOption().matches(OPT_F); 2205 std::string Path = A->getValue(); 2206 2207 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2208 SmallString<32> Buffer; 2209 llvm::sys::path::append(Buffer, Opts.Sysroot, 2210 llvm::StringRef(A->getValue()).substr(1)); 2211 Path = std::string(Buffer.str()); 2212 } 2213 2214 Opts.AddPath(Path, Group, IsFramework, 2215 /*IgnoreSysroot*/ true); 2216 IsIndexHeaderMap = false; 2217 } 2218 2219 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2220 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2221 for (const auto *A : 2222 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2223 if (A->getOption().matches(OPT_iprefix)) 2224 Prefix = A->getValue(); 2225 else if (A->getOption().matches(OPT_iwithprefix)) 2226 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2227 else 2228 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2229 } 2230 2231 for (const auto *A : Args.filtered(OPT_idirafter)) 2232 Opts.AddPath(A->getValue(), frontend::After, false, true); 2233 for (const auto *A : Args.filtered(OPT_iquote)) 2234 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2235 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2236 Opts.AddPath(A->getValue(), frontend::System, false, 2237 !A->getOption().matches(OPT_iwithsysroot)); 2238 for (const auto *A : Args.filtered(OPT_iframework)) 2239 Opts.AddPath(A->getValue(), frontend::System, true, true); 2240 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2241 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2242 /*IgnoreSysRoot=*/false); 2243 2244 // Add the paths for the various language specific isystem flags. 2245 for (const auto *A : Args.filtered(OPT_c_isystem)) 2246 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2247 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2248 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2249 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2250 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2251 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2252 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2253 2254 // Add the internal paths from a driver that detects standard include paths. 2255 for (const auto *A : 2256 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2257 frontend::IncludeDirGroup Group = frontend::System; 2258 if (A->getOption().matches(OPT_internal_externc_isystem)) 2259 Group = frontend::ExternCSystem; 2260 Opts.AddPath(A->getValue(), Group, false, true); 2261 } 2262 2263 // Add the path prefixes which are implicitly treated as being system headers. 2264 for (const auto *A : 2265 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2266 Opts.AddSystemHeaderPrefix( 2267 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2268 2269 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2270 Opts.AddVFSOverlayFile(A->getValue()); 2271 } 2272 2273 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2274 const llvm::Triple &T, 2275 PreprocessorOptions &PPOpts, 2276 LangStandard::Kind LangStd) { 2277 // Set some properties which depend solely on the input kind; it would be nice 2278 // to move these to the language standard, and have the driver resolve the 2279 // input kind + language standard. 2280 // 2281 // FIXME: Perhaps a better model would be for a single source file to have 2282 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2283 // simultaneously active? 2284 if (IK.getLanguage() == Language::Asm) { 2285 Opts.AsmPreprocessor = 1; 2286 } else if (IK.isObjectiveC()) { 2287 Opts.ObjC = 1; 2288 } 2289 2290 if (LangStd == LangStandard::lang_unspecified) { 2291 // Based on the base language, pick one. 2292 switch (IK.getLanguage()) { 2293 case Language::Unknown: 2294 case Language::LLVM_IR: 2295 llvm_unreachable("Invalid input kind!"); 2296 case Language::OpenCL: 2297 LangStd = LangStandard::lang_opencl10; 2298 break; 2299 case Language::CUDA: 2300 LangStd = LangStandard::lang_cuda; 2301 break; 2302 case Language::Asm: 2303 case Language::C: 2304 #if defined(CLANG_DEFAULT_STD_C) 2305 LangStd = CLANG_DEFAULT_STD_C; 2306 #else 2307 // The PS4 uses C99 as the default C standard. 2308 if (T.isPS4()) 2309 LangStd = LangStandard::lang_gnu99; 2310 else 2311 LangStd = LangStandard::lang_gnu17; 2312 #endif 2313 break; 2314 case Language::ObjC: 2315 #if defined(CLANG_DEFAULT_STD_C) 2316 LangStd = CLANG_DEFAULT_STD_C; 2317 #else 2318 LangStd = LangStandard::lang_gnu11; 2319 #endif 2320 break; 2321 case Language::CXX: 2322 case Language::ObjCXX: 2323 #if defined(CLANG_DEFAULT_STD_CXX) 2324 LangStd = CLANG_DEFAULT_STD_CXX; 2325 #else 2326 LangStd = LangStandard::lang_gnucxx14; 2327 #endif 2328 break; 2329 case Language::RenderScript: 2330 LangStd = LangStandard::lang_c99; 2331 break; 2332 case Language::HIP: 2333 LangStd = LangStandard::lang_hip; 2334 break; 2335 } 2336 } 2337 2338 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2339 Opts.LineComment = Std.hasLineComments(); 2340 Opts.C99 = Std.isC99(); 2341 Opts.C11 = Std.isC11(); 2342 Opts.C17 = Std.isC17(); 2343 Opts.C2x = Std.isC2x(); 2344 Opts.CPlusPlus = Std.isCPlusPlus(); 2345 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2346 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2347 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2348 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 2349 Opts.Digraphs = Std.hasDigraphs(); 2350 Opts.GNUMode = Std.isGNUMode(); 2351 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2352 Opts.GNUCVersion = 0; 2353 Opts.HexFloats = Std.hasHexFloats(); 2354 Opts.ImplicitInt = Std.hasImplicitInt(); 2355 2356 // Set OpenCL Version. 2357 Opts.OpenCL = Std.isOpenCL(); 2358 if (LangStd == LangStandard::lang_opencl10) 2359 Opts.OpenCLVersion = 100; 2360 else if (LangStd == LangStandard::lang_opencl11) 2361 Opts.OpenCLVersion = 110; 2362 else if (LangStd == LangStandard::lang_opencl12) 2363 Opts.OpenCLVersion = 120; 2364 else if (LangStd == LangStandard::lang_opencl20) 2365 Opts.OpenCLVersion = 200; 2366 else if (LangStd == LangStandard::lang_openclcpp) 2367 Opts.OpenCLCPlusPlusVersion = 100; 2368 2369 // OpenCL has some additional defaults. 2370 if (Opts.OpenCL) { 2371 Opts.AltiVec = 0; 2372 Opts.ZVector = 0; 2373 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2374 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2375 Opts.NativeHalfType = 1; 2376 Opts.NativeHalfArgsAndReturns = 1; 2377 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2378 2379 // Include default header file for OpenCL. 2380 if (Opts.IncludeDefaultHeader) { 2381 if (Opts.DeclareOpenCLBuiltins) { 2382 // Only include base header file for builtin types and constants. 2383 PPOpts.Includes.push_back("opencl-c-base.h"); 2384 } else { 2385 PPOpts.Includes.push_back("opencl-c.h"); 2386 } 2387 } 2388 } 2389 2390 Opts.HIP = IK.getLanguage() == Language::HIP; 2391 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2392 if (Opts.CUDA) 2393 // Set default FP_CONTRACT to FAST. 2394 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2395 2396 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2397 if (Opts.RenderScript) { 2398 Opts.NativeHalfType = 1; 2399 Opts.NativeHalfArgsAndReturns = 1; 2400 } 2401 2402 // OpenCL and C++ both have bool, true, false keywords. 2403 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2404 2405 // OpenCL has half keyword 2406 Opts.Half = Opts.OpenCL; 2407 2408 // C++ has wchar_t keyword. 2409 Opts.WChar = Opts.CPlusPlus; 2410 2411 Opts.GNUKeywords = Opts.GNUMode; 2412 Opts.CXXOperatorNames = Opts.CPlusPlus; 2413 2414 Opts.AlignedAllocation = Opts.CPlusPlus17; 2415 2416 Opts.DollarIdents = !Opts.AsmPreprocessor; 2417 2418 // Enable [[]] attributes in C++11 and C2x by default. 2419 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2420 } 2421 2422 /// Attempt to parse a visibility value out of the given argument. 2423 static Visibility parseVisibility(Arg *arg, ArgList &args, 2424 DiagnosticsEngine &diags) { 2425 StringRef value = arg->getValue(); 2426 if (value == "default") { 2427 return DefaultVisibility; 2428 } else if (value == "hidden" || value == "internal") { 2429 return HiddenVisibility; 2430 } else if (value == "protected") { 2431 // FIXME: diagnose if target does not support protected visibility 2432 return ProtectedVisibility; 2433 } 2434 2435 diags.Report(diag::err_drv_invalid_value) 2436 << arg->getAsString(args) << value; 2437 return DefaultVisibility; 2438 } 2439 2440 /// Check if input file kind and language standard are compatible. 2441 static bool IsInputCompatibleWithStandard(InputKind IK, 2442 const LangStandard &S) { 2443 switch (IK.getLanguage()) { 2444 case Language::Unknown: 2445 case Language::LLVM_IR: 2446 llvm_unreachable("should not parse language flags for this input"); 2447 2448 case Language::C: 2449 case Language::ObjC: 2450 case Language::RenderScript: 2451 return S.getLanguage() == Language::C; 2452 2453 case Language::OpenCL: 2454 return S.getLanguage() == Language::OpenCL; 2455 2456 case Language::CXX: 2457 case Language::ObjCXX: 2458 return S.getLanguage() == Language::CXX; 2459 2460 case Language::CUDA: 2461 // FIXME: What -std= values should be permitted for CUDA compilations? 2462 return S.getLanguage() == Language::CUDA || 2463 S.getLanguage() == Language::CXX; 2464 2465 case Language::HIP: 2466 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2467 2468 case Language::Asm: 2469 // Accept (and ignore) all -std= values. 2470 // FIXME: The -std= value is not ignored; it affects the tokenization 2471 // and preprocessing rules if we're preprocessing this asm input. 2472 return true; 2473 } 2474 2475 llvm_unreachable("unexpected input language"); 2476 } 2477 2478 /// Get language name for given input kind. 2479 static const StringRef GetInputKindName(InputKind IK) { 2480 switch (IK.getLanguage()) { 2481 case Language::C: 2482 return "C"; 2483 case Language::ObjC: 2484 return "Objective-C"; 2485 case Language::CXX: 2486 return "C++"; 2487 case Language::ObjCXX: 2488 return "Objective-C++"; 2489 case Language::OpenCL: 2490 return "OpenCL"; 2491 case Language::CUDA: 2492 return "CUDA"; 2493 case Language::RenderScript: 2494 return "RenderScript"; 2495 case Language::HIP: 2496 return "HIP"; 2497 2498 case Language::Asm: 2499 return "Asm"; 2500 case Language::LLVM_IR: 2501 return "LLVM IR"; 2502 2503 case Language::Unknown: 2504 break; 2505 } 2506 llvm_unreachable("unknown input language"); 2507 } 2508 2509 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2510 const TargetOptions &TargetOpts, 2511 PreprocessorOptions &PPOpts, 2512 DiagnosticsEngine &Diags) { 2513 // FIXME: Cleanup per-file based stuff. 2514 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2515 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2516 LangStd = LangStandard::getLangKind(A->getValue()); 2517 if (LangStd == LangStandard::lang_unspecified) { 2518 Diags.Report(diag::err_drv_invalid_value) 2519 << A->getAsString(Args) << A->getValue(); 2520 // Report supported standards with short description. 2521 for (unsigned KindValue = 0; 2522 KindValue != LangStandard::lang_unspecified; 2523 ++KindValue) { 2524 const LangStandard &Std = LangStandard::getLangStandardForKind( 2525 static_cast<LangStandard::Kind>(KindValue)); 2526 if (IsInputCompatibleWithStandard(IK, Std)) { 2527 auto Diag = Diags.Report(diag::note_drv_use_standard); 2528 Diag << Std.getName() << Std.getDescription(); 2529 unsigned NumAliases = 0; 2530 #define LANGSTANDARD(id, name, lang, desc, features) 2531 #define LANGSTANDARD_ALIAS(id, alias) \ 2532 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2533 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2534 #include "clang/Basic/LangStandards.def" 2535 Diag << NumAliases; 2536 #define LANGSTANDARD(id, name, lang, desc, features) 2537 #define LANGSTANDARD_ALIAS(id, alias) \ 2538 if (KindValue == LangStandard::lang_##id) Diag << alias; 2539 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2540 #include "clang/Basic/LangStandards.def" 2541 } 2542 } 2543 } else { 2544 // Valid standard, check to make sure language and standard are 2545 // compatible. 2546 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2547 if (!IsInputCompatibleWithStandard(IK, Std)) { 2548 Diags.Report(diag::err_drv_argument_not_allowed_with) 2549 << A->getAsString(Args) << GetInputKindName(IK); 2550 } 2551 } 2552 } 2553 2554 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2555 Opts.DllExportInlines = false; 2556 2557 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2558 StringRef Name = A->getValue(); 2559 if (Name == "full" || Name == "branch") { 2560 Opts.CFProtectionBranch = 1; 2561 } 2562 } 2563 // -cl-std only applies for OpenCL language standards. 2564 // Override the -std option in this case. 2565 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2566 LangStandard::Kind OpenCLLangStd 2567 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2568 .Cases("cl", "CL", LangStandard::lang_opencl10) 2569 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2570 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2571 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2572 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2573 .Default(LangStandard::lang_unspecified); 2574 2575 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2576 Diags.Report(diag::err_drv_invalid_value) 2577 << A->getAsString(Args) << A->getValue(); 2578 } 2579 else 2580 LangStd = OpenCLLangStd; 2581 } 2582 2583 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2584 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2585 if (Opts.SYCL) { 2586 // -sycl-std applies to any SYCL source, not only those containing kernels, 2587 // but also those using the SYCL API 2588 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2589 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2590 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2591 .Default(0U); 2592 2593 if (Opts.SYCLVersion == 0U) { 2594 // User has passed an invalid value to the flag, this is an error 2595 Diags.Report(diag::err_drv_invalid_value) 2596 << A->getAsString(Args) << A->getValue(); 2597 } 2598 } 2599 } 2600 2601 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2602 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2603 2604 llvm::Triple T(TargetOpts.Triple); 2605 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2606 2607 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2608 // This option should be deprecated for CL > 1.0 because 2609 // this option was added for compatibility with OpenCL 1.0. 2610 if (Args.getLastArg(OPT_cl_strict_aliasing) 2611 && Opts.OpenCLVersion > 100) { 2612 Diags.Report(diag::warn_option_invalid_ocl_version) 2613 << Opts.getOpenCLVersionTuple().getAsString() 2614 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2615 } 2616 2617 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2618 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2619 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2620 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2621 // name, as it doesn't seem a useful distinction. 2622 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2623 Opts.GNUKeywords); 2624 2625 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2626 2627 if (Args.hasArg(OPT_fno_operator_names)) 2628 Opts.CXXOperatorNames = 0; 2629 2630 if (Args.hasArg(OPT_fcuda_is_device)) 2631 Opts.CUDAIsDevice = 1; 2632 2633 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2634 Opts.CUDAAllowVariadicFunctions = 1; 2635 2636 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2637 Opts.CUDAHostDeviceConstexpr = 0; 2638 2639 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2640 Opts.CUDADeviceApproxTranscendentals = 1; 2641 2642 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2643 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2644 if (Opts.HIP) 2645 Opts.GPUAllowDeviceInit = 1; 2646 else 2647 Diags.Report(diag::warn_ignored_hip_only_option) 2648 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2649 } 2650 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2651 if (Opts.HIP) 2652 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2653 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2654 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2655 Diags.Report(diag::warn_ignored_hip_only_option) 2656 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2657 2658 if (Opts.ObjC) { 2659 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2660 StringRef value = arg->getValue(); 2661 if (Opts.ObjCRuntime.tryParse(value)) 2662 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2663 } 2664 2665 if (Args.hasArg(OPT_fobjc_gc_only)) 2666 Opts.setGC(LangOptions::GCOnly); 2667 else if (Args.hasArg(OPT_fobjc_gc)) 2668 Opts.setGC(LangOptions::HybridGC); 2669 else if (Args.hasArg(OPT_fobjc_arc)) { 2670 Opts.ObjCAutoRefCount = 1; 2671 if (!Opts.ObjCRuntime.allowsARC()) 2672 Diags.Report(diag::err_arc_unsupported_on_runtime); 2673 } 2674 2675 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2676 // whether the feature is actually enabled. This is predominantly 2677 // determined by -fobjc-runtime, but we allow it to be overridden 2678 // from the command line for testing purposes. 2679 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2680 Opts.ObjCWeakRuntime = 1; 2681 else 2682 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2683 2684 // ObjCWeak determines whether __weak is actually enabled. 2685 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2686 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2687 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2688 assert(!Opts.ObjCWeak); 2689 } else if (Opts.getGC() != LangOptions::NonGC) { 2690 Diags.Report(diag::err_objc_weak_with_gc); 2691 } else if (!Opts.ObjCWeakRuntime) { 2692 Diags.Report(diag::err_objc_weak_unsupported); 2693 } else { 2694 Opts.ObjCWeak = 1; 2695 } 2696 } else if (Opts.ObjCAutoRefCount) { 2697 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2698 } 2699 2700 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2701 Opts.ObjCInferRelatedResultType = 0; 2702 2703 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2704 Opts.ObjCSubscriptingLegacyRuntime = 2705 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2706 } 2707 2708 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2709 // Check that the version has 1 to 3 components and the minor and patch 2710 // versions fit in two decimal digits. 2711 VersionTuple GNUCVer; 2712 bool Invalid = GNUCVer.tryParse(A->getValue()); 2713 unsigned Major = GNUCVer.getMajor(); 2714 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2715 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2716 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2717 Diags.Report(diag::err_drv_invalid_value) 2718 << A->getAsString(Args) << A->getValue(); 2719 } 2720 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2721 } 2722 2723 if (Args.hasArg(OPT_fgnu89_inline)) { 2724 if (Opts.CPlusPlus) 2725 Diags.Report(diag::err_drv_argument_not_allowed_with) 2726 << "-fgnu89-inline" << GetInputKindName(IK); 2727 else 2728 Opts.GNUInline = 1; 2729 } 2730 2731 if (Args.hasArg(OPT_fapple_kext)) { 2732 if (!Opts.CPlusPlus) 2733 Diags.Report(diag::warn_c_kext); 2734 else 2735 Opts.AppleKext = 1; 2736 } 2737 2738 if (Args.hasArg(OPT_print_ivar_layout)) 2739 Opts.ObjCGCBitmapPrint = 1; 2740 2741 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2742 Opts.NoConstantCFStrings = 1; 2743 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2744 Opts.CFRuntime = 2745 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2746 .Cases("unspecified", "standalone", "objc", 2747 LangOptions::CoreFoundationABI::ObjectiveC) 2748 .Cases("swift", "swift-5.0", 2749 LangOptions::CoreFoundationABI::Swift5_0) 2750 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2751 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2752 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2753 2754 if (Args.hasArg(OPT_fzvector)) 2755 Opts.ZVector = 1; 2756 2757 if (Args.hasArg(OPT_pthread)) 2758 Opts.POSIXThreads = 1; 2759 2760 // The value-visibility mode defaults to "default". 2761 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2762 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2763 } else { 2764 Opts.setValueVisibilityMode(DefaultVisibility); 2765 } 2766 2767 // The type-visibility mode defaults to the value-visibility mode. 2768 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2769 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2770 } else { 2771 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2772 } 2773 2774 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2775 Opts.InlineVisibilityHidden = 1; 2776 2777 if (Args.hasArg(OPT_fvisibility_inlines_hidden_static_local_var)) 2778 Opts.VisibilityInlinesHiddenStaticLocalVar = 1; 2779 2780 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2781 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2782 2783 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2784 Opts.SetVisibilityForExternDecls = 1; 2785 2786 if (Args.hasArg(OPT_ftrapv)) { 2787 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2788 // Set the handler, if one is specified. 2789 Opts.OverflowHandler = 2790 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2791 } 2792 else if (Args.hasArg(OPT_fwrapv)) 2793 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2794 2795 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2796 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2797 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2798 Opts.MSCompatibilityVersion = 0; 2799 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2800 VersionTuple VT; 2801 if (VT.tryParse(A->getValue())) 2802 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2803 << A->getValue(); 2804 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2805 VT.getMinor().getValueOr(0) * 100000 + 2806 VT.getSubminor().getValueOr(0); 2807 } 2808 2809 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2810 // is specified, or -std is set to a conforming mode. 2811 // Trigraphs are disabled by default in c++1z onwards. 2812 // For z/OS, trigraphs are enabled by default (without regard to the above). 2813 Opts.Trigraphs = 2814 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 2815 Opts.Trigraphs = 2816 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2817 2818 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2819 OPT_fno_dollars_in_identifiers, 2820 Opts.DollarIdents); 2821 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2822 Opts.setVtorDispMode( 2823 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2824 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2825 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2826 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2827 Opts.ConstStrings); 2828 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2829 using LaxKind = LangOptions::LaxVectorConversionKind; 2830 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2831 .Case("none", LaxKind::None) 2832 .Case("integer", LaxKind::Integer) 2833 .Case("all", LaxKind::All) 2834 .Default(llvm::None)) 2835 Opts.setLaxVectorConversions(*Kind); 2836 else 2837 Diags.Report(diag::err_drv_invalid_value) 2838 << A->getAsString(Args) << A->getValue(); 2839 } 2840 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2841 Opts.ThreadsafeStatics = 0; 2842 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2843 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2844 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2845 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2846 2847 // -ffixed-point 2848 Opts.FixedPoint = 2849 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2850 !Opts.CPlusPlus; 2851 Opts.PaddingOnUnsignedFixedPoint = 2852 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2853 OPT_fno_padding_on_unsigned_fixed_point, 2854 /*Default=*/false) && 2855 Opts.FixedPoint; 2856 2857 // Handle exception personalities 2858 Arg *A = Args.getLastArg( 2859 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2860 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2861 if (A) { 2862 const Option &Opt = A->getOption(); 2863 llvm::Triple T(TargetOpts.Triple); 2864 if (T.isWindowsMSVCEnvironment()) 2865 Diags.Report(diag::err_fe_invalid_exception_model) 2866 << Opt.getName() << T.str(); 2867 2868 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2869 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2870 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2871 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2872 } 2873 2874 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2875 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2876 2877 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2878 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2879 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2880 && Opts.OpenCLVersion == 200); 2881 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2882 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2883 2884 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2885 Args.hasArg(OPT_fconvergent_functions); 2886 2887 Opts.DoubleSquareBracketAttributes = 2888 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2889 OPT_fno_double_square_bracket_attributes, 2890 Opts.DoubleSquareBracketAttributes); 2891 2892 Opts.CPlusPlusModules = Opts.CPlusPlus20; 2893 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2894 Opts.Modules = 2895 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2896 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2897 Opts.ModulesDeclUse = 2898 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2899 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2900 // enter a different module (eg, when building a header unit). 2901 Opts.ModulesLocalVisibility = 2902 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2903 Opts.CPlusPlusModules; 2904 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2905 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2906 Opts.ModulesSearchAll = Opts.Modules && 2907 !Args.hasArg(OPT_fno_modules_search_all) && 2908 Args.hasArg(OPT_fmodules_search_all); 2909 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2910 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2911 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2912 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2913 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 2914 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2915 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2916 .Case("char", 1) 2917 .Case("short", 2) 2918 .Case("int", 4) 2919 .Default(0); 2920 if (Opts.WCharSize == 0) 2921 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2922 } 2923 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2924 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2925 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2926 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2927 if (!Opts.NoBuiltin) 2928 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2929 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2930 Opts.RelaxedTemplateTemplateArgs = 2931 Args.hasArg(OPT_frelaxed_template_template_args); 2932 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2933 Opts.AlignedAllocation = 2934 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2935 Opts.AlignedAllocation); 2936 Opts.AlignedAllocationUnavailable = 2937 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2938 Opts.NewAlignOverride = 2939 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2940 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2941 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2942 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2943 << A->getValue(); 2944 Opts.NewAlignOverride = 0; 2945 } 2946 Opts.ConceptSatisfactionCaching = 2947 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2948 if (Args.hasArg(OPT_fconcepts_ts)) 2949 Diags.Report(diag::warn_fe_concepts_ts_flag); 2950 // Recovery AST still heavily relies on dependent-type machinery. 2951 Opts.RecoveryAST = 2952 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, Opts.CPlusPlus); 2953 Opts.RecoveryASTType = Args.hasFlag( 2954 OPT_frecovery_ast_type, OPT_fno_recovery_ast_type, Opts.CPlusPlus); 2955 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2956 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2957 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2958 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2959 Opts.InstantiationDepth = 2960 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2961 Opts.ArrowDepth = 2962 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2963 Opts.ConstexprCallDepth = 2964 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2965 Opts.ConstexprStepLimit = 2966 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2967 Opts.EnableNewConstInterp = 2968 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2969 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2970 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2971 Opts.NumLargeByValueCopy = 2972 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2973 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2974 Opts.ObjCConstantStringClass = 2975 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2976 Opts.ObjCDefaultSynthProperties = 2977 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2978 Opts.EncodeExtendedBlockSig = 2979 Args.hasArg(OPT_fencode_extended_block_signature); 2980 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2981 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2982 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2983 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2984 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 2985 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2986 ? 128 2987 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2988 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2989 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2990 Opts.ROPI = Args.hasArg(OPT_fropi); 2991 Opts.RWPI = Args.hasArg(OPT_frwpi); 2992 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2993 Opts.Static = Args.hasArg(OPT_static_define); 2994 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2995 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2996 || Args.hasArg(OPT_fdump_record_layouts); 2997 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2998 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2999 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 3000 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 3001 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 3002 if (Opts.FastRelaxedMath) 3003 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3004 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 3005 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 3006 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 3007 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 3008 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 3009 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 3010 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 3011 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 3012 Opts.CurrentModule = Opts.ModuleName; 3013 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 3014 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 3015 llvm::sort(Opts.ModuleFeatures); 3016 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 3017 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 3018 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 3019 // is enabled. 3020 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 3021 | Opts.NativeHalfArgsAndReturns; 3022 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 3023 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 3024 3025 Opts.ArmSveVectorBits = 3026 getLastArgIntValue(Args, options::OPT_msve_vector_bits_EQ, 0, Diags); 3027 3028 // __declspec is enabled by default for the PS4 by the driver, and also 3029 // enabled for Microsoft Extensions or Borland Extensions, here. 3030 // 3031 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 3032 // CUDA extension. However, it is required for supporting 3033 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 3034 // been rewritten in terms of something more generic, remove the Opts.CUDA 3035 // term here. 3036 Opts.DeclSpecKeyword = 3037 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 3038 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 3039 3040 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 3041 switch (llvm::StringSwitch<unsigned>(A->getValue()) 3042 .Case("target", LangOptions::ASMM_Target) 3043 .Case("no", LangOptions::ASMM_Off) 3044 .Case("yes", LangOptions::ASMM_On) 3045 .Default(255)) { 3046 default: 3047 Diags.Report(diag::err_drv_invalid_value) 3048 << "-faddress-space-map-mangling=" << A->getValue(); 3049 break; 3050 case LangOptions::ASMM_Target: 3051 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 3052 break; 3053 case LangOptions::ASMM_On: 3054 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 3055 break; 3056 case LangOptions::ASMM_Off: 3057 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 3058 break; 3059 } 3060 } 3061 3062 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 3063 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 3064 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 3065 A->getValue()) 3066 .Case("single", 3067 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3068 .Case("multiple", 3069 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3070 .Case("virtual", 3071 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3072 .Default(LangOptions::PPTMK_BestCase); 3073 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3074 Diags.Report(diag::err_drv_invalid_value) 3075 << "-fms-memptr-rep=" << A->getValue(); 3076 3077 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3078 } 3079 3080 // Check for MS default calling conventions being specified. 3081 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3082 LangOptions::DefaultCallingConvention DefaultCC = 3083 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3084 .Case("cdecl", LangOptions::DCC_CDecl) 3085 .Case("fastcall", LangOptions::DCC_FastCall) 3086 .Case("stdcall", LangOptions::DCC_StdCall) 3087 .Case("vectorcall", LangOptions::DCC_VectorCall) 3088 .Case("regcall", LangOptions::DCC_RegCall) 3089 .Default(LangOptions::DCC_None); 3090 if (DefaultCC == LangOptions::DCC_None) 3091 Diags.Report(diag::err_drv_invalid_value) 3092 << "-fdefault-calling-conv=" << A->getValue(); 3093 3094 llvm::Triple T(TargetOpts.Triple); 3095 llvm::Triple::ArchType Arch = T.getArch(); 3096 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3097 DefaultCC == LangOptions::DCC_StdCall) && 3098 Arch != llvm::Triple::x86; 3099 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3100 DefaultCC == LangOptions::DCC_RegCall) && 3101 !T.isX86(); 3102 if (emitError) 3103 Diags.Report(diag::err_drv_argument_not_allowed_with) 3104 << A->getSpelling() << T.getTriple(); 3105 else 3106 Opts.setDefaultCallingConv(DefaultCC); 3107 } 3108 3109 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3110 // An explicit -fno-semantic-interposition infers dso_local. 3111 Opts.ExplicitNoSemanticInterposition = 3112 Args.hasArg(OPT_fno_semantic_interposition); 3113 3114 // -mrtd option 3115 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3116 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3117 Diags.Report(diag::err_drv_argument_not_allowed_with) 3118 << A->getSpelling() << "-fdefault-calling-conv"; 3119 else { 3120 llvm::Triple T(TargetOpts.Triple); 3121 if (T.getArch() != llvm::Triple::x86) 3122 Diags.Report(diag::err_drv_argument_not_allowed_with) 3123 << A->getSpelling() << T.getTriple(); 3124 else 3125 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3126 } 3127 } 3128 3129 // Check if -fopenmp is specified and set default version to 5.0. 3130 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 50 : 0; 3131 // Check if -fopenmp-simd is specified. 3132 bool IsSimdSpecified = 3133 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3134 /*Default=*/false); 3135 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3136 Opts.OpenMPUseTLS = 3137 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3138 Opts.OpenMPIsDevice = 3139 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3140 Opts.OpenMPIRBuilder = 3141 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3142 bool IsTargetSpecified = 3143 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3144 3145 if (Opts.OpenMP || Opts.OpenMPSimd) { 3146 if (int Version = getLastArgIntValue( 3147 Args, OPT_fopenmp_version_EQ, 3148 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3149 Opts.OpenMP = Version; 3150 // Provide diagnostic when a given target is not expected to be an OpenMP 3151 // device or host. 3152 if (!Opts.OpenMPIsDevice) { 3153 switch (T.getArch()) { 3154 default: 3155 break; 3156 // Add unsupported host targets here: 3157 case llvm::Triple::nvptx: 3158 case llvm::Triple::nvptx64: 3159 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3160 << TargetOpts.Triple; 3161 break; 3162 } 3163 } 3164 } 3165 3166 // Set the flag to prevent the implementation from emitting device exception 3167 // handling code for those requiring so. 3168 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3169 Opts.OpenCLCPlusPlus) { 3170 Opts.Exceptions = 0; 3171 Opts.CXXExceptions = 0; 3172 } 3173 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3174 Opts.OpenMPCUDANumSMs = 3175 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3176 Opts.OpenMPCUDANumSMs, Diags); 3177 Opts.OpenMPCUDABlocksPerSM = 3178 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3179 Opts.OpenMPCUDABlocksPerSM, Diags); 3180 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3181 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3182 Opts.OpenMPCUDAReductionBufNum, Diags); 3183 } 3184 3185 // Prevent auto-widening the representation of loop counters during an 3186 // OpenMP collapse clause. 3187 Opts.OpenMPOptimisticCollapse = 3188 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3189 3190 // Get the OpenMP target triples if any. 3191 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3192 3193 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3194 llvm::Triple TT(A->getValue(i)); 3195 3196 if (TT.getArch() == llvm::Triple::UnknownArch || 3197 !(TT.getArch() == llvm::Triple::aarch64 || 3198 TT.getArch() == llvm::Triple::ppc || 3199 TT.getArch() == llvm::Triple::ppc64 || 3200 TT.getArch() == llvm::Triple::ppc64le || 3201 TT.getArch() == llvm::Triple::nvptx || 3202 TT.getArch() == llvm::Triple::nvptx64 || 3203 TT.getArch() == llvm::Triple::amdgcn || 3204 TT.getArch() == llvm::Triple::x86 || 3205 TT.getArch() == llvm::Triple::x86_64)) 3206 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3207 else 3208 Opts.OMPTargetTriples.push_back(TT); 3209 } 3210 } 3211 3212 // Get OpenMP host file path if any and report if a non existent file is 3213 // found 3214 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3215 Opts.OMPHostIRFile = A->getValue(); 3216 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3217 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3218 << Opts.OMPHostIRFile; 3219 } 3220 3221 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3222 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3223 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3224 3225 // Set CUDA support for parallel execution of target regions for OpenMP target 3226 // NVPTX/AMDGCN if specified in options. 3227 Opts.OpenMPCUDATargetParallel = 3228 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3229 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3230 3231 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3232 Opts.OpenMPCUDAForceFullRuntime = 3233 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3234 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3235 3236 // Record whether the __DEPRECATED define was requested. 3237 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3238 OPT_fno_deprecated_macro, 3239 Opts.Deprecated); 3240 3241 // FIXME: Eliminate this dependency. 3242 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3243 OptSize = getOptimizationLevelSize(Args); 3244 Opts.Optimize = Opt != 0; 3245 Opts.OptimizeSize = OptSize != 0; 3246 3247 // This is the __NO_INLINE__ define, which just depends on things like the 3248 // optimization level and -fno-inline, not actually whether the backend has 3249 // inlining enabled. 3250 Opts.NoInlineDefine = !Opts.Optimize; 3251 if (Arg *InlineArg = Args.getLastArg( 3252 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3253 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3254 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3255 Opts.NoInlineDefine = true; 3256 3257 Opts.FastMath = 3258 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_fast_relaxed_math); 3259 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3260 Args.hasArg(OPT_ffast_math) || 3261 Args.hasArg(OPT_cl_finite_math_only) || 3262 Args.hasArg(OPT_cl_fast_relaxed_math); 3263 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3264 Args.hasArg(OPT_ffast_math) || 3265 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3266 Args.hasArg(OPT_cl_fast_relaxed_math); 3267 Opts.AllowFPReassoc = Args.hasArg(OPT_mreassociate) || 3268 Args.hasArg(OPT_menable_unsafe_fp_math) || 3269 Args.hasArg(OPT_ffast_math) || 3270 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3271 Args.hasArg(OPT_cl_fast_relaxed_math); 3272 Opts.NoHonorNaNs = 3273 Args.hasArg(OPT_menable_no_nans) || Args.hasArg(OPT_ffinite_math_only) || 3274 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_finite_math_only) || 3275 Args.hasArg(OPT_cl_fast_relaxed_math); 3276 Opts.NoHonorInfs = Args.hasArg(OPT_menable_no_infinities) || 3277 Args.hasArg(OPT_ffinite_math_only) || 3278 Args.hasArg(OPT_ffast_math) || 3279 Args.hasArg(OPT_cl_finite_math_only) || 3280 Args.hasArg(OPT_cl_fast_relaxed_math); 3281 Opts.NoSignedZero = Args.hasArg(OPT_fno_signed_zeros) || 3282 Args.hasArg(OPT_menable_unsafe_fp_math) || 3283 Args.hasArg(OPT_ffast_math) || 3284 Args.hasArg(OPT_cl_no_signed_zeros) || 3285 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3286 Args.hasArg(OPT_cl_fast_relaxed_math); 3287 Opts.AllowRecip = Args.hasArg(OPT_freciprocal_math) || 3288 Args.hasArg(OPT_menable_unsafe_fp_math) || 3289 Args.hasArg(OPT_ffast_math) || 3290 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3291 Args.hasArg(OPT_cl_fast_relaxed_math); 3292 // Currently there's no clang option to enable this individually 3293 Opts.ApproxFunc = Args.hasArg(OPT_menable_unsafe_fp_math) || 3294 Args.hasArg(OPT_ffast_math) || 3295 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3296 Args.hasArg(OPT_cl_fast_relaxed_math); 3297 3298 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3299 StringRef Val = A->getValue(); 3300 if (Val == "fast") 3301 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3302 else if (Val == "on") 3303 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3304 else if (Val == "off") 3305 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3306 else 3307 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3308 } 3309 3310 if (Args.hasArg(OPT_fexperimental_strict_floating_point)) 3311 Opts.ExpStrictFP = true; 3312 3313 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3314 if (Args.hasArg(OPT_frounding_math)) { 3315 FPRM = llvm::RoundingMode::Dynamic; 3316 } 3317 Opts.setFPRoundingMode(FPRM); 3318 3319 if (Args.hasArg(OPT_ftrapping_math)) { 3320 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3321 } 3322 3323 if (Args.hasArg(OPT_fno_trapping_math)) { 3324 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3325 } 3326 3327 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3328 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3329 StringRef Val = A->getValue(); 3330 if (Val.equals("ignore")) 3331 FPEB = LangOptions::FPE_Ignore; 3332 else if (Val.equals("maytrap")) 3333 FPEB = LangOptions::FPE_MayTrap; 3334 else if (Val.equals("strict")) 3335 FPEB = LangOptions::FPE_Strict; 3336 else 3337 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3338 } 3339 Opts.setFPExceptionMode(FPEB); 3340 3341 Opts.RetainCommentsFromSystemHeaders = 3342 Args.hasArg(OPT_fretain_comments_from_system_headers); 3343 3344 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3345 switch (SSP) { 3346 default: 3347 Diags.Report(diag::err_drv_invalid_value) 3348 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3349 break; 3350 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3351 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3352 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3353 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3354 } 3355 3356 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3357 StringRef Val = A->getValue(); 3358 if (Val == "uninitialized") 3359 Opts.setTrivialAutoVarInit( 3360 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3361 else if (Val == "zero") 3362 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3363 else if (Val == "pattern") 3364 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3365 else 3366 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3367 } 3368 3369 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init_stop_after)) { 3370 int Val = std::stoi(A->getValue()); 3371 Opts.TrivialAutoVarInitStopAfter = Val; 3372 } 3373 3374 // Parse -fsanitize= arguments. 3375 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3376 Diags, Opts.Sanitize); 3377 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3378 Opts.SanitizeAddressFieldPadding = 3379 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3380 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3381 std::vector<std::string> systemBlacklists = 3382 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3383 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3384 systemBlacklists.begin(), 3385 systemBlacklists.end()); 3386 3387 // -fxray-instrument 3388 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3389 Opts.XRayAlwaysEmitCustomEvents = 3390 Args.hasArg(OPT_fxray_always_emit_customevents); 3391 Opts.XRayAlwaysEmitTypedEvents = 3392 Args.hasArg(OPT_fxray_always_emit_typedevents); 3393 3394 // -fxray-{always,never}-instrument= filenames. 3395 Opts.XRayAlwaysInstrumentFiles = 3396 Args.getAllArgValues(OPT_fxray_always_instrument); 3397 Opts.XRayNeverInstrumentFiles = 3398 Args.getAllArgValues(OPT_fxray_never_instrument); 3399 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3400 3401 // -fforce-emit-vtables 3402 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3403 3404 // -fallow-editor-placeholders 3405 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3406 3407 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3408 3409 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3410 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3411 3412 StringRef Ver = A->getValue(); 3413 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3414 unsigned Major, Minor = 0; 3415 3416 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3417 // y or y.0 (4 <= y <= current version). 3418 if (!VerParts.first.startswith("0") && 3419 !VerParts.first.getAsInteger(10, Major) && 3420 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3421 (Major == 3 ? VerParts.second.size() == 1 && 3422 !VerParts.second.getAsInteger(10, Minor) 3423 : VerParts.first.size() == Ver.size() || 3424 VerParts.second == "0")) { 3425 // Got a valid version number. 3426 if (Major == 3 && Minor <= 8) 3427 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3428 else if (Major <= 4) 3429 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3430 else if (Major <= 6) 3431 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3432 else if (Major <= 7) 3433 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3434 else if (Major <= 9) 3435 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3436 } else if (Ver != "latest") { 3437 Diags.Report(diag::err_drv_invalid_value) 3438 << A->getAsString(Args) << A->getValue(); 3439 } 3440 } 3441 3442 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3443 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3444 Opts.PCHInstantiateTemplates = Args.hasArg(OPT_fpch_instantiate_templates); 3445 3446 Opts.MatrixTypes = Args.hasArg(OPT_fenable_matrix); 3447 3448 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3449 3450 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3451 StringRef SignScope = A->getValue(); 3452 3453 if (SignScope.equals_lower("none")) 3454 Opts.setSignReturnAddressScope( 3455 LangOptions::SignReturnAddressScopeKind::None); 3456 else if (SignScope.equals_lower("all")) 3457 Opts.setSignReturnAddressScope( 3458 LangOptions::SignReturnAddressScopeKind::All); 3459 else if (SignScope.equals_lower("non-leaf")) 3460 Opts.setSignReturnAddressScope( 3461 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3462 else 3463 Diags.Report(diag::err_drv_invalid_value) 3464 << A->getAsString(Args) << SignScope; 3465 3466 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3467 StringRef SignKey = A->getValue(); 3468 if (!SignScope.empty() && !SignKey.empty()) { 3469 if (SignKey.equals_lower("a_key")) 3470 Opts.setSignReturnAddressKey( 3471 LangOptions::SignReturnAddressKeyKind::AKey); 3472 else if (SignKey.equals_lower("b_key")) 3473 Opts.setSignReturnAddressKey( 3474 LangOptions::SignReturnAddressKeyKind::BKey); 3475 else 3476 Diags.Report(diag::err_drv_invalid_value) 3477 << A->getAsString(Args) << SignKey; 3478 } 3479 } 3480 } 3481 3482 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3483 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 3484 3485 Opts.CompatibilityQualifiedIdBlockParamTypeChecking = 3486 Args.hasArg(OPT_fcompatibility_qualified_id_block_param_type_checking); 3487 3488 Opts.RelativeCXXABIVTables = 3489 Args.hasFlag(OPT_fexperimental_relative_cxx_abi_vtables, 3490 OPT_fno_experimental_relative_cxx_abi_vtables, 3491 /*default=*/false); 3492 } 3493 3494 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3495 switch (Action) { 3496 case frontend::ASTDeclList: 3497 case frontend::ASTDump: 3498 case frontend::ASTPrint: 3499 case frontend::ASTView: 3500 case frontend::EmitAssembly: 3501 case frontend::EmitBC: 3502 case frontend::EmitHTML: 3503 case frontend::EmitLLVM: 3504 case frontend::EmitLLVMOnly: 3505 case frontend::EmitCodeGenOnly: 3506 case frontend::EmitObj: 3507 case frontend::FixIt: 3508 case frontend::GenerateModule: 3509 case frontend::GenerateModuleInterface: 3510 case frontend::GenerateHeaderModule: 3511 case frontend::GeneratePCH: 3512 case frontend::GenerateInterfaceStubs: 3513 case frontend::ParseSyntaxOnly: 3514 case frontend::ModuleFileInfo: 3515 case frontend::VerifyPCH: 3516 case frontend::PluginAction: 3517 case frontend::RewriteObjC: 3518 case frontend::RewriteTest: 3519 case frontend::RunAnalysis: 3520 case frontend::TemplightDump: 3521 case frontend::MigrateSource: 3522 return false; 3523 3524 case frontend::DumpCompilerOptions: 3525 case frontend::DumpRawTokens: 3526 case frontend::DumpTokens: 3527 case frontend::InitOnly: 3528 case frontend::PrintPreamble: 3529 case frontend::PrintPreprocessedInput: 3530 case frontend::RewriteMacros: 3531 case frontend::RunPreprocessorOnly: 3532 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3533 return true; 3534 } 3535 llvm_unreachable("invalid frontend action"); 3536 } 3537 3538 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3539 DiagnosticsEngine &Diags, 3540 frontend::ActionKind Action) { 3541 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3542 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3543 Args.hasArg(OPT_pch_through_hdrstop_use); 3544 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3545 Opts.PCHThroughHeader = 3546 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3547 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3548 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3549 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3550 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3551 3552 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3553 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3554 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3555 3556 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3557 auto Split = StringRef(A).split('='); 3558 Opts.MacroPrefixMap.insert( 3559 {std::string(Split.first), std::string(Split.second)}); 3560 } 3561 3562 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3563 StringRef Value(A->getValue()); 3564 size_t Comma = Value.find(','); 3565 unsigned Bytes = 0; 3566 unsigned EndOfLine = 0; 3567 3568 if (Comma == StringRef::npos || 3569 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3570 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3571 Diags.Report(diag::err_drv_preamble_format); 3572 else { 3573 Opts.PrecompiledPreambleBytes.first = Bytes; 3574 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3575 } 3576 } 3577 3578 // Add the __CET__ macro if a CFProtection option is set. 3579 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3580 StringRef Name = A->getValue(); 3581 if (Name == "branch") 3582 Opts.addMacroDef("__CET__=1"); 3583 else if (Name == "return") 3584 Opts.addMacroDef("__CET__=2"); 3585 else if (Name == "full") 3586 Opts.addMacroDef("__CET__=3"); 3587 } 3588 3589 // Add macros from the command line. 3590 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3591 if (A->getOption().matches(OPT_D)) 3592 Opts.addMacroDef(A->getValue()); 3593 else 3594 Opts.addMacroUndef(A->getValue()); 3595 } 3596 3597 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3598 3599 // Add the ordered list of -includes. 3600 for (const auto *A : Args.filtered(OPT_include)) 3601 Opts.Includes.emplace_back(A->getValue()); 3602 3603 for (const auto *A : Args.filtered(OPT_chain_include)) 3604 Opts.ChainedIncludes.emplace_back(A->getValue()); 3605 3606 for (const auto *A : Args.filtered(OPT_remap_file)) { 3607 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3608 3609 if (Split.second.empty()) { 3610 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3611 continue; 3612 } 3613 3614 Opts.addRemappedFile(Split.first, Split.second); 3615 } 3616 3617 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3618 StringRef Name = A->getValue(); 3619 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3620 .Case("libc++", ARCXX_libcxx) 3621 .Case("libstdc++", ARCXX_libstdcxx) 3622 .Case("none", ARCXX_nolib) 3623 .Default(~0U); 3624 if (Library == ~0U) 3625 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3626 else 3627 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3628 } 3629 3630 // Always avoid lexing editor placeholders when we're just running the 3631 // preprocessor as we never want to emit the 3632 // "editor placeholder in source file" error in PP only mode. 3633 if (isStrictlyPreprocessorAction(Action)) 3634 Opts.LexEditorPlaceholders = false; 3635 3636 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3637 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3638 } 3639 3640 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3641 ArgList &Args, 3642 frontend::ActionKind Action) { 3643 if (isStrictlyPreprocessorAction(Action)) 3644 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3645 else 3646 Opts.ShowCPP = 0; 3647 3648 Opts.ShowComments = Args.hasArg(OPT_C); 3649 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3650 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3651 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3652 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3653 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3654 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3655 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3656 } 3657 3658 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3659 DiagnosticsEngine &Diags) { 3660 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3661 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3662 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3663 StringRef Value = A->getValue(); 3664 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3665 .Case("default", llvm::EABI::Default) 3666 .Case("4", llvm::EABI::EABI4) 3667 .Case("5", llvm::EABI::EABI5) 3668 .Case("gnu", llvm::EABI::GNU) 3669 .Default(llvm::EABI::Unknown); 3670 if (EABIVersion == llvm::EABI::Unknown) 3671 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3672 << Value; 3673 else 3674 Opts.EABIVersion = EABIVersion; 3675 } 3676 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3677 Opts.TuneCPU = std::string(Args.getLastArgValue(OPT_tune_cpu)); 3678 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3679 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3680 Opts.LinkerVersion = 3681 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3682 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3683 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3684 Opts.NVPTXUseShortPointers = Args.hasFlag( 3685 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3686 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3687 llvm::VersionTuple Version; 3688 if (Version.tryParse(A->getValue())) 3689 Diags.Report(diag::err_drv_invalid_value) 3690 << A->getAsString(Args) << A->getValue(); 3691 else 3692 Opts.SDKVersion = Version; 3693 } 3694 } 3695 3696 bool CompilerInvocation::parseSimpleArgs(const ArgList &Args, 3697 DiagnosticsEngine &Diags) { 3698 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 3699 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 3700 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 3701 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 3702 this->KEYPATH = Args.hasArg(OPT_##ID) && IS_POSITIVE; 3703 3704 #define OPTION_WITH_MARSHALLING_STRING( \ 3705 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3706 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3707 TYPE, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 3708 { \ 3709 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, Args, Diags)) \ 3710 this->KEYPATH = static_cast<TYPE>(*MaybeValue); \ 3711 else \ 3712 this->KEYPATH = DEFAULT_VALUE; \ 3713 } 3714 3715 #include "clang/Driver/Options.inc" 3716 #undef OPTION_WITH_MARSHALLING_STRING 3717 #undef OPTION_WITH_MARSHALLING_FLAG 3718 return true; 3719 } 3720 3721 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3722 ArrayRef<const char *> CommandLineArgs, 3723 DiagnosticsEngine &Diags, 3724 const char *Argv0) { 3725 bool Success = true; 3726 3727 // Parse the arguments. 3728 const OptTable &Opts = getDriverOptTable(); 3729 const unsigned IncludedFlagsBitmask = options::CC1Option; 3730 unsigned MissingArgIndex, MissingArgCount; 3731 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3732 MissingArgCount, IncludedFlagsBitmask); 3733 LangOptions &LangOpts = *Res.getLangOpts(); 3734 3735 // Check for missing argument error. 3736 if (MissingArgCount) { 3737 Diags.Report(diag::err_drv_missing_argument) 3738 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3739 Success = false; 3740 } 3741 3742 // Issue errors on unknown arguments. 3743 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3744 auto ArgString = A->getAsString(Args); 3745 std::string Nearest; 3746 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3747 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3748 else 3749 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3750 << ArgString << Nearest; 3751 Success = false; 3752 } 3753 3754 Success &= Res.parseSimpleArgs(Args, Diags); 3755 3756 llvm::sys::Process::UseANSIEscapeCodes( 3757 Res.DiagnosticOpts->UseANSIEscapeCodes); 3758 3759 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3760 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3761 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3762 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3763 Res.getDependencyOutputOpts().Targets.empty()) { 3764 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3765 Success = false; 3766 } 3767 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3768 /*DefaultDiagColor=*/false); 3769 ParseCommentArgs(LangOpts.CommentOpts, Args); 3770 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3771 // FIXME: We shouldn't have to pass the DashX option around here 3772 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3773 LangOpts.IsHeaderFile); 3774 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3775 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3776 Res.getTargetOpts(), Res.getFrontendOpts()); 3777 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3778 Res.getFileSystemOpts().WorkingDir); 3779 llvm::Triple T(Res.getTargetOpts().Triple); 3780 if (DashX.getFormat() == InputKind::Precompiled || 3781 DashX.getLanguage() == Language::LLVM_IR) { 3782 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3783 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3784 // what the input type is. 3785 if (Args.hasArg(OPT_fobjc_arc)) 3786 LangOpts.ObjCAutoRefCount = 1; 3787 // PIClevel and PIELevel are needed during code generation and this should be 3788 // set regardless of the input type. 3789 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3790 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3791 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3792 Diags, LangOpts.Sanitize); 3793 } else { 3794 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3795 // FIXME: Should we really be calling this for an Language::Asm input? 3796 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3797 Res.getPreprocessorOpts(), Diags); 3798 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3799 LangOpts.ObjCExceptions = 1; 3800 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3801 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3802 // preprocessed input as we don't expect it to be used with -std=libc++ 3803 // anyway. 3804 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3805 } 3806 } 3807 3808 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3809 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3810 3811 LangOpts.FunctionAlignment = 3812 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3813 3814 if (LangOpts.CUDA) { 3815 // During CUDA device-side compilation, the aux triple is the 3816 // triple used for host compilation. 3817 if (LangOpts.CUDAIsDevice) 3818 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3819 } 3820 3821 // Set the triple of the host for OpenMP device compile. 3822 if (LangOpts.OpenMPIsDevice) 3823 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3824 3825 // FIXME: Override value name discarding when asan or msan is used because the 3826 // backend passes depend on the name of the alloca in order to print out 3827 // names. 3828 Res.getCodeGenOpts().DiscardValueNames &= 3829 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3830 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3831 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3832 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3833 3834 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3835 Res.getFrontendOpts().ProgramAction); 3836 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3837 Res.getFrontendOpts().ProgramAction); 3838 3839 // Turn on -Wspir-compat for SPIR target. 3840 if (T.isSPIR()) 3841 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3842 3843 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3844 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3845 !Res.getLangOpts()->Sanitize.empty()) { 3846 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3847 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3848 } 3849 3850 // Store the command-line for using in the CodeView backend. 3851 Res.getCodeGenOpts().Argv0 = Argv0; 3852 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 3853 3854 return Success; 3855 } 3856 3857 std::string CompilerInvocation::getModuleHash() const { 3858 // Note: For QoI reasons, the things we use as a hash here should all be 3859 // dumped via the -module-info flag. 3860 using llvm::hash_code; 3861 using llvm::hash_value; 3862 using llvm::hash_combine; 3863 using llvm::hash_combine_range; 3864 3865 // Start the signature with the compiler version. 3866 // FIXME: We'd rather use something more cryptographically sound than 3867 // CityHash, but this will do for now. 3868 hash_code code = hash_value(getClangFullRepositoryVersion()); 3869 3870 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3871 // and getClangFullRepositoryVersion() doesn't include git revision. 3872 code = hash_combine(code, serialization::VERSION_MAJOR, 3873 serialization::VERSION_MINOR); 3874 3875 // Extend the signature with the language options 3876 #define LANGOPT(Name, Bits, Default, Description) \ 3877 code = hash_combine(code, LangOpts->Name); 3878 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3879 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3880 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3881 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3882 #include "clang/Basic/LangOptions.def" 3883 3884 for (StringRef Feature : LangOpts->ModuleFeatures) 3885 code = hash_combine(code, Feature); 3886 3887 code = hash_combine(code, LangOpts->ObjCRuntime); 3888 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 3889 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 3890 3891 // Extend the signature with the target options. 3892 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3893 TargetOpts->TuneCPU, TargetOpts->ABI); 3894 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3895 code = hash_combine(code, FeatureAsWritten); 3896 3897 // Extend the signature with preprocessor options. 3898 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3899 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3900 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3901 3902 for (const auto &I : getPreprocessorOpts().Macros) { 3903 // If we're supposed to ignore this macro for the purposes of modules, 3904 // don't put it into the hash. 3905 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3906 // Check whether we're ignoring this macro. 3907 StringRef MacroDef = I.first; 3908 if (hsOpts.ModulesIgnoreMacros.count( 3909 llvm::CachedHashString(MacroDef.split('=').first))) 3910 continue; 3911 } 3912 3913 code = hash_combine(code, I.first, I.second); 3914 } 3915 3916 // Extend the signature with the sysroot and other header search options. 3917 code = hash_combine(code, hsOpts.Sysroot, 3918 hsOpts.ModuleFormat, 3919 hsOpts.UseDebugInfo, 3920 hsOpts.UseBuiltinIncludes, 3921 hsOpts.UseStandardSystemIncludes, 3922 hsOpts.UseStandardCXXIncludes, 3923 hsOpts.UseLibcxx, 3924 hsOpts.ModulesValidateDiagnosticOptions); 3925 code = hash_combine(code, hsOpts.ResourceDir); 3926 3927 if (hsOpts.ModulesStrictContextHash) { 3928 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3929 hsOpts.SystemHeaderPrefixes.end()); 3930 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3931 hsOpts.UserEntries.end()); 3932 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3933 hsOpts.UserEntries.size(), UEC); 3934 3935 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3936 #define DIAGOPT(Name, Bits, Default) \ 3937 code = hash_combine(code, diagOpts.Name); 3938 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3939 code = hash_combine(code, diagOpts.get##Name()); 3940 #include "clang/Basic/DiagnosticOptions.def" 3941 #undef DIAGOPT 3942 #undef ENUM_DIAGOPT 3943 } 3944 3945 // Extend the signature with the user build path. 3946 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3947 3948 // Extend the signature with the module file extensions. 3949 const FrontendOptions &frontendOpts = getFrontendOpts(); 3950 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3951 code = ext->hashExtension(code); 3952 } 3953 3954 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3955 // affects the debug info in the PCM. 3956 if (getCodeGenOpts().DebugTypeExtRefs) 3957 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3958 code = hash_combine(code, KeyValue.first, KeyValue.second); 3959 3960 // Extend the signature with the enabled sanitizers, if at least one is 3961 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3962 SanitizerSet SanHash = LangOpts->Sanitize; 3963 SanHash.clear(getPPTransparentSanitizers()); 3964 if (!SanHash.empty()) 3965 code = hash_combine(code, SanHash.Mask); 3966 3967 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3968 } 3969 3970 void CompilerInvocation::generateCC1CommandLine( 3971 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 3972 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 3973 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 3974 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 3975 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 3976 if ((FLAGS) & options::CC1Option && \ 3977 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) \ 3978 Args.push_back(SPELLING); 3979 3980 #define OPTION_WITH_MARSHALLING_STRING( \ 3981 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3982 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3983 NORMALIZER_RET_TY, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 3984 if (((FLAGS) & options::CC1Option) && \ 3985 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) { \ 3986 if (Option::KIND##Class == Option::SeparateClass) { \ 3987 Args.push_back(SPELLING); \ 3988 Args.push_back(DENORMALIZER(SA, TABLE_INDEX, this->KEYPATH)); \ 3989 } \ 3990 } 3991 3992 #include "clang/Driver/Options.inc" 3993 #undef OPTION_WITH_MARSHALLING_STRING 3994 #undef OPTION_WITH_MARSHALLING_FLAG 3995 } 3996 3997 namespace clang { 3998 3999 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4000 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4001 DiagnosticsEngine &Diags) { 4002 return createVFSFromCompilerInvocation(CI, Diags, 4003 llvm::vfs::getRealFileSystem()); 4004 } 4005 4006 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 4007 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4008 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4009 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4010 return BaseFS; 4011 4012 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4013 // earlier vfs files are on the bottom 4014 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4015 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4016 Result->getBufferForFile(File); 4017 if (!Buffer) { 4018 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4019 continue; 4020 } 4021 4022 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4023 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4024 /*DiagContext*/ nullptr, Result); 4025 if (!FS) { 4026 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4027 continue; 4028 } 4029 4030 Result = FS; 4031 } 4032 return Result; 4033 } 4034 4035 } // namespace clang 4036