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.AtomicProfileUpdate = Args.hasArg(OPT_fprofile_update_EQ); 888 Opts.InstrProfileOutput = 889 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 890 Opts.ProfileInstrumentUsePath = 891 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 892 if (!Opts.ProfileInstrumentUsePath.empty()) 893 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 894 Opts.ProfileRemappingFile = 895 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 896 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 897 Diags.Report(diag::err_drv_argument_only_allowed_with) 898 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 899 << "-fexperimental-new-pass-manager"; 900 } 901 902 Opts.CoverageMapping = 903 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 904 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 905 Opts.AsmVerbose = !Args.hasArg(OPT_fno_verbose_asm); 906 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 907 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 908 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 909 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 910 Opts.RegisterGlobalDtorsWithAtExit = 911 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 912 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 913 Opts.CodeModel = TargetOpts.CodeModel; 914 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 915 916 // Handle -mframe-pointer option. 917 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 918 CodeGenOptions::FramePointerKind FP; 919 StringRef Name = A->getValue(); 920 bool ValidFP = true; 921 if (Name == "none") 922 FP = CodeGenOptions::FramePointerKind::None; 923 else if (Name == "non-leaf") 924 FP = CodeGenOptions::FramePointerKind::NonLeaf; 925 else if (Name == "all") 926 FP = CodeGenOptions::FramePointerKind::All; 927 else { 928 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 929 Success = false; 930 ValidFP = false; 931 } 932 if (ValidFP) 933 Opts.setFramePointer(FP); 934 } 935 936 Opts.DisableFree = Args.hasArg(OPT_disable_free); 937 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 938 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 939 Opts.NoEscapingBlockTailCalls = 940 Args.hasArg(OPT_fno_escaping_block_tail_calls); 941 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 942 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 943 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 944 Args.hasArg(OPT_cl_fast_relaxed_math); 945 Opts.LimitFloatPrecision = 946 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 947 Opts.CorrectlyRoundedDivSqrt = 948 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 949 Opts.UniformWGSize = 950 Args.hasArg(OPT_cl_uniform_work_group_size); 951 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 952 Opts.StrictFloatCastOverflow = 953 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 954 955 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_fno_zero_initialized_in_bss); 956 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 957 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 958 Opts.SmallDataLimit = 959 getLastArgIntValue(Args, OPT_msmall_data_limit, 0, Diags); 960 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 961 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 962 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 963 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 964 Opts.IncrementalLinkerCompatible = 965 Args.hasArg(OPT_mincremental_linker_compatible); 966 Opts.PIECopyRelocations = 967 Args.hasArg(OPT_mpie_copy_relocations); 968 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 969 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 970 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 971 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 972 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 973 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 974 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 975 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 976 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 977 Opts.ThreadModel = 978 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 979 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 980 Diags.Report(diag::err_drv_invalid_value) 981 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 982 << Opts.ThreadModel; 983 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 984 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 985 986 Opts.BBSections = 987 std::string(Args.getLastArgValue(OPT_fbasic_block_sections_EQ, "none")); 988 989 // Basic Block Sections implies Function Sections. 990 Opts.FunctionSections = 991 Args.hasArg(OPT_ffunction_sections) || 992 (Opts.BBSections != "none" && Opts.BBSections != "labels"); 993 994 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 995 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 996 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 997 Opts.UniqueBasicBlockSectionNames = 998 Args.hasArg(OPT_funique_basic_block_section_names); 999 Opts.UniqueInternalLinkageNames = 1000 Args.hasArg(OPT_funique_internal_linkage_names); 1001 1002 Opts.SplitMachineFunctions = Args.hasArg(OPT_fsplit_machine_functions); 1003 1004 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 1005 1006 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 1007 1008 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 1009 1010 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 1011 1012 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1013 Opts.PrepareForThinLTO = false; 1014 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1015 StringRef S = A->getValue(); 1016 if (S == "thin") 1017 Opts.PrepareForThinLTO = true; 1018 else if (S != "full") 1019 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1020 } 1021 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 1022 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 1023 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1024 if (IK.getLanguage() != Language::LLVM_IR) 1025 Diags.Report(diag::err_drv_argument_only_allowed_with) 1026 << A->getAsString(Args) << "-x ir"; 1027 Opts.ThinLTOIndexFile = 1028 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1029 } 1030 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1031 Opts.SaveTempsFilePrefix = 1032 llvm::StringSwitch<std::string>(A->getValue()) 1033 .Case("obj", FrontendOpts.OutputFile) 1034 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 1035 1036 Opts.ThinLinkBitcodeFile = 1037 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 1038 1039 Opts.MemProf = Args.hasArg(OPT_fmemory_profile); 1040 1041 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 1042 1043 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 1044 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 1045 1046 Opts.PreferVectorWidth = 1047 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1048 1049 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1050 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1051 1052 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1053 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1054 1055 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 1056 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1057 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1058 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1059 Opts.CoverageDataFile = 1060 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1061 Opts.CoverageNotesFile = 1062 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1063 Opts.ProfileFilterFiles = 1064 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1065 Opts.ProfileExcludeFiles = 1066 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1067 if (Args.hasArg(OPT_coverage_version_EQ)) { 1068 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1069 if (CoverageVersion.size() != 4) { 1070 Diags.Report(diag::err_drv_invalid_value) 1071 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1072 << CoverageVersion; 1073 } else { 1074 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1075 } 1076 } 1077 } 1078 // Handle -fembed-bitcode option. 1079 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1080 StringRef Name = A->getValue(); 1081 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1082 .Case("off", CodeGenOptions::Embed_Off) 1083 .Case("all", CodeGenOptions::Embed_All) 1084 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1085 .Case("marker", CodeGenOptions::Embed_Marker) 1086 .Default(~0U); 1087 if (Model == ~0U) { 1088 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1089 Success = false; 1090 } else 1091 Opts.setEmbedBitcode( 1092 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1093 } 1094 // FIXME: For backend options that are not yet recorded as function 1095 // attributes in the IR, keep track of them so we can embed them in a 1096 // separate data section and use them when building the bitcode. 1097 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1098 for (const auto &A : Args) { 1099 // Do not encode output and input. 1100 if (A->getOption().getID() == options::OPT_o || 1101 A->getOption().getID() == options::OPT_INPUT || 1102 A->getOption().getID() == options::OPT_x || 1103 A->getOption().getID() == options::OPT_fembed_bitcode || 1104 A->getOption().matches(options::OPT_W_Group)) 1105 continue; 1106 ArgStringList ASL; 1107 A->render(Args, ASL); 1108 for (const auto &arg : ASL) { 1109 StringRef ArgStr(arg); 1110 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1111 // using \00 to separate each commandline options. 1112 Opts.CmdArgs.push_back('\0'); 1113 } 1114 } 1115 } 1116 1117 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1118 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1119 Opts.InstrumentFunctionsAfterInlining = 1120 Args.hasArg(OPT_finstrument_functions_after_inlining); 1121 Opts.InstrumentFunctionEntryBare = 1122 Args.hasArg(OPT_finstrument_function_entry_bare); 1123 1124 Opts.XRayInstrumentFunctions = 1125 Args.hasArg(OPT_fxray_instrument); 1126 Opts.XRayAlwaysEmitCustomEvents = 1127 Args.hasArg(OPT_fxray_always_emit_customevents); 1128 Opts.XRayAlwaysEmitTypedEvents = 1129 Args.hasArg(OPT_fxray_always_emit_typedevents); 1130 Opts.XRayInstructionThreshold = 1131 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1132 Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops); 1133 Opts.XRayOmitFunctionIndex = Args.hasArg(OPT_fno_xray_function_index); 1134 Opts.XRayTotalFunctionGroups = 1135 getLastArgIntValue(Args, OPT_fxray_function_groups, 1, Diags); 1136 Opts.XRaySelectedFunctionGroup = 1137 getLastArgIntValue(Args, OPT_fxray_selected_function_group, 0, Diags); 1138 1139 auto XRayInstrBundles = 1140 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1141 if (XRayInstrBundles.empty()) 1142 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1143 else 1144 for (const auto &A : XRayInstrBundles) 1145 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1146 Diags, Opts.XRayInstrumentationBundle); 1147 1148 Opts.PatchableFunctionEntryCount = 1149 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1150 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1151 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1152 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1153 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1154 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1155 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1156 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1157 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1158 1159 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1160 StringRef Name = A->getValue(); 1161 if (Name == "full") { 1162 Opts.CFProtectionReturn = 1; 1163 Opts.CFProtectionBranch = 1; 1164 } else if (Name == "return") 1165 Opts.CFProtectionReturn = 1; 1166 else if (Name == "branch") 1167 Opts.CFProtectionBranch = 1; 1168 else if (Name != "none") { 1169 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1170 Success = false; 1171 } 1172 } 1173 1174 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1175 OPT_compress_debug_sections_EQ)) { 1176 if (A->getOption().getID() == OPT_compress_debug_sections) { 1177 Opts.setCompressDebugSections(llvm::DebugCompressionType::Z); 1178 } else { 1179 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1180 .Case("none", llvm::DebugCompressionType::None) 1181 .Case("zlib", llvm::DebugCompressionType::Z) 1182 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1183 .Default(llvm::DebugCompressionType::None); 1184 Opts.setCompressDebugSections(DCT); 1185 } 1186 } 1187 1188 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1189 Opts.DebugCompilationDir = 1190 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1191 for (auto *A : 1192 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1193 CodeGenOptions::BitcodeFileToLink F; 1194 F.Filename = A->getValue(); 1195 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1196 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1197 // When linking CUDA bitcode, propagate function attributes so that 1198 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1199 F.PropagateAttrs = true; 1200 F.Internalize = true; 1201 } 1202 Opts.LinkBitcodeFiles.push_back(F); 1203 } 1204 Opts.SanitizeCoverageType = 1205 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1206 Opts.SanitizeCoverageIndirectCalls = 1207 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1208 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1209 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1210 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1211 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1212 Opts.SanitizeCoverage8bitCounters = 1213 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1214 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1215 Opts.SanitizeCoverageTracePCGuard = 1216 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1217 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1218 Opts.SanitizeCoverageInline8bitCounters = 1219 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1220 Opts.SanitizeCoverageInlineBoolFlag = 1221 Args.hasArg(OPT_fsanitize_coverage_inline_bool_flag); 1222 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1223 Opts.SanitizeCoverageStackDepth = 1224 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1225 Opts.SanitizeCoverageAllowlistFiles = 1226 Args.getAllArgValues(OPT_fsanitize_coverage_allowlist); 1227 Opts.SanitizeCoverageBlocklistFiles = 1228 Args.getAllArgValues(OPT_fsanitize_coverage_blocklist); 1229 Opts.SanitizeMemoryTrackOrigins = 1230 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1231 Opts.SanitizeMemoryUseAfterDtor = 1232 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1233 OPT_fno_sanitize_memory_use_after_dtor, 1234 false); 1235 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1236 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1237 Opts.SanitizeCfiICallGeneralizePointers = 1238 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1239 Opts.SanitizeCfiCanonicalJumpTables = 1240 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1241 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1242 if (Arg *A = Args.getLastArg( 1243 OPT_fsanitize_address_poison_custom_array_cookie, 1244 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1245 Opts.SanitizeAddressPoisonCustomArrayCookie = 1246 A->getOption().getID() == 1247 OPT_fsanitize_address_poison_custom_array_cookie; 1248 } 1249 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1250 OPT_fno_sanitize_address_use_after_scope)) { 1251 Opts.SanitizeAddressUseAfterScope = 1252 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1253 } 1254 Opts.SanitizeAddressGlobalsDeadStripping = 1255 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1256 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1257 OPT_fno_sanitize_address_use_odr_indicator)) { 1258 Opts.SanitizeAddressUseOdrIndicator = 1259 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1260 } 1261 Opts.SSPBufferSize = 1262 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1263 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1264 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1265 StringRef Val = A->getValue(); 1266 unsigned StackAlignment = Opts.StackAlignment; 1267 Val.getAsInteger(10, StackAlignment); 1268 Opts.StackAlignment = StackAlignment; 1269 } 1270 1271 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1272 StringRef Val = A->getValue(); 1273 unsigned StackProbeSize = Opts.StackProbeSize; 1274 Val.getAsInteger(0, StackProbeSize); 1275 Opts.StackProbeSize = StackProbeSize; 1276 } 1277 1278 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1279 1280 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1281 1282 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1283 StringRef Name = A->getValue(); 1284 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1285 .Case("legacy", CodeGenOptions::Legacy) 1286 .Case("non-legacy", CodeGenOptions::NonLegacy) 1287 .Case("mixed", CodeGenOptions::Mixed) 1288 .Default(~0U); 1289 if (Method == ~0U) { 1290 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1291 Success = false; 1292 } else { 1293 Opts.setObjCDispatchMethod( 1294 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1295 } 1296 } 1297 1298 1299 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1300 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1301 1302 if (Args.getLastArg(OPT_femulated_tls) || 1303 Args.getLastArg(OPT_fno_emulated_tls)) { 1304 Opts.ExplicitEmulatedTLS = true; 1305 Opts.EmulatedTLS = 1306 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1307 } 1308 1309 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1310 StringRef Name = A->getValue(); 1311 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1312 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1313 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1314 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1315 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1316 .Default(~0U); 1317 if (Model == ~0U) { 1318 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1319 Success = false; 1320 } else { 1321 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1322 } 1323 } 1324 1325 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1326 1327 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1328 StringRef Val = A->getValue(); 1329 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1330 if (!Opts.FPDenormalMode.isValid()) 1331 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1332 } 1333 1334 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1335 StringRef Val = A->getValue(); 1336 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1337 if (!Opts.FP32DenormalMode.isValid()) 1338 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1339 } 1340 1341 // X86_32 has -fppc-struct-return and -freg-struct-return. 1342 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1343 if (Arg *A = 1344 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1345 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1346 // TODO: We might want to consider enabling these options on AIX in the 1347 // future. 1348 if (T.isOSAIX()) 1349 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1350 << A->getSpelling() << T.str(); 1351 1352 const Option &O = A->getOption(); 1353 if (O.matches(OPT_fpcc_struct_return) || 1354 O.matches(OPT_maix_struct_return)) { 1355 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1356 } else { 1357 assert(O.matches(OPT_freg_struct_return) || 1358 O.matches(OPT_msvr4_struct_return)); 1359 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1360 } 1361 } 1362 1363 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 1364 !Args.hasArg(OPT_fvisibility))) 1365 Opts.IgnoreXCOFFVisibility = 1; 1366 1367 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1368 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1369 bool NeedLocTracking = false; 1370 1371 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1372 if (!Opts.OptRecordFile.empty()) 1373 NeedLocTracking = true; 1374 1375 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1376 Opts.OptRecordPasses = A->getValue(); 1377 NeedLocTracking = true; 1378 } 1379 1380 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1381 Opts.OptRecordFormat = A->getValue(); 1382 NeedLocTracking = true; 1383 } 1384 1385 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1386 Opts.OptimizationRemarkPattern = 1387 GenerateOptimizationRemarkRegex(Diags, Args, A); 1388 NeedLocTracking = true; 1389 } 1390 1391 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1392 Opts.OptimizationRemarkMissedPattern = 1393 GenerateOptimizationRemarkRegex(Diags, Args, A); 1394 NeedLocTracking = true; 1395 } 1396 1397 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1398 Opts.OptimizationRemarkAnalysisPattern = 1399 GenerateOptimizationRemarkRegex(Diags, Args, A); 1400 NeedLocTracking = true; 1401 } 1402 1403 Opts.DiagnosticsWithHotness = 1404 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1405 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1406 bool UsingProfile = UsingSampleProfile || 1407 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1408 1409 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1410 // An IR file will contain PGO as metadata 1411 IK.getLanguage() != Language::LLVM_IR) 1412 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1413 << "-fdiagnostics-show-hotness"; 1414 1415 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1416 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1417 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1418 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1419 << "-fdiagnostics-hotness-threshold="; 1420 1421 // If the user requested to use a sample profile for PGO, then the 1422 // backend will need to track source location information so the profile 1423 // can be incorporated into the IR. 1424 if (UsingSampleProfile) 1425 NeedLocTracking = true; 1426 1427 // If the user requested a flag that requires source locations available in 1428 // the backend, make sure that the backend tracks source location information. 1429 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1430 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1431 1432 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1433 1434 // Parse -fsanitize-recover= arguments. 1435 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1436 parseSanitizerKinds("-fsanitize-recover=", 1437 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1438 Opts.SanitizeRecover); 1439 parseSanitizerKinds("-fsanitize-trap=", 1440 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1441 Opts.SanitizeTrap); 1442 1443 Opts.CudaGpuBinaryFileName = 1444 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1445 1446 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1447 1448 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1449 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1450 1451 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1452 1453 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1454 1455 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1456 1457 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1458 1459 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1460 1461 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1462 1463 Opts.SymbolPartition = 1464 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1465 1466 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1467 Opts.AAPCSBitfieldWidth = 1468 Args.hasFlag(OPT_AAPCSBitfieldWidth, OPT_ForceNoAAPCSBitfieldWidth, true); 1469 1470 Opts.PassByValueIsNoAlias = Args.hasArg(OPT_fpass_by_value_is_noalias); 1471 1472 // -f[no-]split-cold-code 1473 // This may only be enabled when optimizing, and when small code size 1474 // increases are tolerable. 1475 Opts.SplitColdCode = 1476 (Opts.OptimizationLevel > 0) && (Opts.OptimizeSize != 2) && 1477 Args.hasFlag(OPT_fsplit_cold_code, OPT_fno_split_cold_code, false); 1478 if (Arg *A = Args.getLastArg(OPT_fsplit_cold_code)) 1479 if (!Opts.SplitColdCode) 1480 Diags.Report(diag::warn_fe_ignored_opt_split_cold_code) 1481 << A->getAsString(Args) << (Opts.OptimizeSize != 2); 1482 1483 return Success; 1484 } 1485 1486 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1487 ArgList &Args) { 1488 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1489 Opts.Targets = Args.getAllArgValues(OPT_MT); 1490 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1491 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1492 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1493 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1494 Opts.HeaderIncludeOutputFile = 1495 std::string(Args.getLastArgValue(OPT_header_include_file)); 1496 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1497 if (Args.hasArg(OPT_show_includes)) { 1498 // Writing both /showIncludes and preprocessor output to stdout 1499 // would produce interleaved output, so use stderr for /showIncludes. 1500 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1501 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1502 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1503 else 1504 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1505 } else { 1506 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1507 } 1508 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1509 Opts.ModuleDependencyOutputDir = 1510 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1511 if (Args.hasArg(OPT_MV)) 1512 Opts.OutputFormat = DependencyOutputFormat::NMake; 1513 // Add sanitizer blacklists as extra dependencies. 1514 // They won't be discovered by the regular preprocessor, so 1515 // we let make / ninja to know about this implicit dependency. 1516 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1517 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1518 StringRef Val = A->getValue(); 1519 if (Val.find('=') == StringRef::npos) 1520 Opts.ExtraDeps.push_back(std::string(Val)); 1521 } 1522 if (Opts.IncludeSystemHeaders) { 1523 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1524 StringRef Val = A->getValue(); 1525 if (Val.find('=') == StringRef::npos) 1526 Opts.ExtraDeps.push_back(std::string(Val)); 1527 } 1528 } 1529 } 1530 1531 // Propagate the extra dependencies. 1532 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1533 Opts.ExtraDeps.push_back(A->getValue()); 1534 } 1535 1536 // Only the -fmodule-file=<file> form. 1537 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1538 StringRef Val = A->getValue(); 1539 if (Val.find('=') == StringRef::npos) 1540 Opts.ExtraDeps.push_back(std::string(Val)); 1541 } 1542 } 1543 1544 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1545 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1546 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1547 // Support both clang's -f[no-]color-diagnostics and gcc's 1548 // -f[no-]diagnostics-colors[=never|always|auto]. 1549 enum { 1550 Colors_On, 1551 Colors_Off, 1552 Colors_Auto 1553 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1554 for (auto *A : Args) { 1555 const Option &O = A->getOption(); 1556 if (O.matches(options::OPT_fcolor_diagnostics) || 1557 O.matches(options::OPT_fdiagnostics_color)) { 1558 ShowColors = Colors_On; 1559 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1560 O.matches(options::OPT_fno_diagnostics_color)) { 1561 ShowColors = Colors_Off; 1562 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1563 StringRef Value(A->getValue()); 1564 if (Value == "always") 1565 ShowColors = Colors_On; 1566 else if (Value == "never") 1567 ShowColors = Colors_Off; 1568 else if (Value == "auto") 1569 ShowColors = Colors_Auto; 1570 } 1571 } 1572 return ShowColors == Colors_On || 1573 (ShowColors == Colors_Auto && 1574 llvm::sys::Process::StandardErrHasColors()); 1575 } 1576 1577 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1578 DiagnosticsEngine *Diags) { 1579 bool Success = true; 1580 for (const auto &Prefix : VerifyPrefixes) { 1581 // Every prefix must start with a letter and contain only alphanumeric 1582 // characters, hyphens, and underscores. 1583 auto BadChar = llvm::find_if(Prefix, [](char C) { 1584 return !isAlphanumeric(C) && C != '-' && C != '_'; 1585 }); 1586 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1587 Success = false; 1588 if (Diags) { 1589 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1590 Diags->Report(diag::note_drv_verify_prefix_spelling); 1591 } 1592 } 1593 } 1594 return Success; 1595 } 1596 1597 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1598 DiagnosticsEngine *Diags, 1599 bool DefaultDiagColor) { 1600 bool Success = true; 1601 1602 Opts.DiagnosticLogFile = 1603 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1604 if (Arg *A = 1605 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1606 Opts.DiagnosticSerializationFile = A->getValue(); 1607 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1608 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1609 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1610 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1611 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1612 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1613 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1614 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1615 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1616 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1617 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1618 1619 // Default behavior is to not to show note include stacks. 1620 Opts.ShowNoteIncludeStack = false; 1621 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1622 OPT_fno_diagnostics_show_note_include_stack)) 1623 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1624 Opts.ShowNoteIncludeStack = true; 1625 1626 StringRef ShowOverloads = 1627 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1628 if (ShowOverloads == "best") 1629 Opts.setShowOverloads(Ovl_Best); 1630 else if (ShowOverloads == "all") 1631 Opts.setShowOverloads(Ovl_All); 1632 else { 1633 Success = false; 1634 if (Diags) 1635 Diags->Report(diag::err_drv_invalid_value) 1636 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1637 << ShowOverloads; 1638 } 1639 1640 StringRef ShowCategory = 1641 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1642 if (ShowCategory == "none") 1643 Opts.ShowCategories = 0; 1644 else if (ShowCategory == "id") 1645 Opts.ShowCategories = 1; 1646 else if (ShowCategory == "name") 1647 Opts.ShowCategories = 2; 1648 else { 1649 Success = false; 1650 if (Diags) 1651 Diags->Report(diag::err_drv_invalid_value) 1652 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1653 << ShowCategory; 1654 } 1655 1656 StringRef Format = 1657 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1658 if (Format == "clang") 1659 Opts.setFormat(DiagnosticOptions::Clang); 1660 else if (Format == "msvc") 1661 Opts.setFormat(DiagnosticOptions::MSVC); 1662 else if (Format == "msvc-fallback") { 1663 Opts.setFormat(DiagnosticOptions::MSVC); 1664 Opts.CLFallbackMode = true; 1665 } else if (Format == "vi") 1666 Opts.setFormat(DiagnosticOptions::Vi); 1667 else { 1668 Success = false; 1669 if (Diags) 1670 Diags->Report(diag::err_drv_invalid_value) 1671 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1672 << Format; 1673 } 1674 1675 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1676 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1677 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1678 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1679 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1680 if (Args.hasArg(OPT_verify)) 1681 Opts.VerifyPrefixes.push_back("expected"); 1682 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1683 // then sort it to prepare for fast lookup using std::binary_search. 1684 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1685 Opts.VerifyDiagnostics = false; 1686 Success = false; 1687 } 1688 else 1689 llvm::sort(Opts.VerifyPrefixes); 1690 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1691 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1692 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1693 Diags, DiagMask); 1694 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1695 DiagMask = DiagnosticLevelMask::All; 1696 Opts.setVerifyIgnoreUnexpected(DiagMask); 1697 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1698 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1699 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1700 Opts.MacroBacktraceLimit = 1701 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1702 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1703 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1704 Args, OPT_ftemplate_backtrace_limit, 1705 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1706 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1707 Args, OPT_fconstexpr_backtrace_limit, 1708 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1709 Opts.SpellCheckingLimit = getLastArgIntValue( 1710 Args, OPT_fspell_checking_limit, 1711 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1712 Opts.SnippetLineLimit = getLastArgIntValue( 1713 Args, OPT_fcaret_diagnostics_max_lines, 1714 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1715 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1716 DiagnosticOptions::DefaultTabStop, Diags); 1717 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1718 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1719 if (Diags) 1720 Diags->Report(diag::warn_ignoring_ftabstop_value) 1721 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1722 } 1723 Opts.MessageLength = 1724 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1725 1726 Opts.UndefPrefixes = Args.getAllArgValues(OPT_Wundef_prefix_EQ); 1727 1728 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1729 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1730 1731 return Success; 1732 } 1733 1734 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1735 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1736 } 1737 1738 /// Parse the argument to the -ftest-module-file-extension 1739 /// command-line argument. 1740 /// 1741 /// \returns true on error, false on success. 1742 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1743 std::string &BlockName, 1744 unsigned &MajorVersion, 1745 unsigned &MinorVersion, 1746 bool &Hashed, 1747 std::string &UserInfo) { 1748 SmallVector<StringRef, 5> Args; 1749 Arg.split(Args, ':', 5); 1750 if (Args.size() < 5) 1751 return true; 1752 1753 BlockName = std::string(Args[0]); 1754 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1755 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1756 if (Args[3].getAsInteger(2, Hashed)) return true; 1757 if (Args.size() > 4) 1758 UserInfo = std::string(Args[4]); 1759 return false; 1760 } 1761 1762 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1763 DiagnosticsEngine &Diags, 1764 bool &IsHeaderFile) { 1765 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1766 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1767 switch (A->getOption().getID()) { 1768 default: 1769 llvm_unreachable("Invalid option in group!"); 1770 case OPT_ast_list: 1771 Opts.ProgramAction = frontend::ASTDeclList; break; 1772 case OPT_ast_dump_all_EQ: 1773 case OPT_ast_dump_EQ: { 1774 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1775 .CaseLower("default", ADOF_Default) 1776 .CaseLower("json", ADOF_JSON) 1777 .Default(std::numeric_limits<unsigned>::max()); 1778 1779 if (Val != std::numeric_limits<unsigned>::max()) 1780 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1781 else { 1782 Diags.Report(diag::err_drv_invalid_value) 1783 << A->getAsString(Args) << A->getValue(); 1784 Opts.ASTDumpFormat = ADOF_Default; 1785 } 1786 LLVM_FALLTHROUGH; 1787 } 1788 case OPT_ast_dump: 1789 case OPT_ast_dump_all: 1790 case OPT_ast_dump_lookups: 1791 case OPT_ast_dump_decl_types: 1792 Opts.ProgramAction = frontend::ASTDump; break; 1793 case OPT_ast_print: 1794 Opts.ProgramAction = frontend::ASTPrint; break; 1795 case OPT_ast_view: 1796 Opts.ProgramAction = frontend::ASTView; break; 1797 case OPT_compiler_options_dump: 1798 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1799 case OPT_dump_raw_tokens: 1800 Opts.ProgramAction = frontend::DumpRawTokens; break; 1801 case OPT_dump_tokens: 1802 Opts.ProgramAction = frontend::DumpTokens; break; 1803 case OPT_S: 1804 Opts.ProgramAction = frontend::EmitAssembly; break; 1805 case OPT_emit_llvm_bc: 1806 Opts.ProgramAction = frontend::EmitBC; break; 1807 case OPT_emit_html: 1808 Opts.ProgramAction = frontend::EmitHTML; break; 1809 case OPT_emit_llvm: 1810 Opts.ProgramAction = frontend::EmitLLVM; break; 1811 case OPT_emit_llvm_only: 1812 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1813 case OPT_emit_codegen_only: 1814 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1815 case OPT_emit_obj: 1816 Opts.ProgramAction = frontend::EmitObj; break; 1817 case OPT_fixit_EQ: 1818 Opts.FixItSuffix = A->getValue(); 1819 LLVM_FALLTHROUGH; 1820 case OPT_fixit: 1821 Opts.ProgramAction = frontend::FixIt; break; 1822 case OPT_emit_module: 1823 Opts.ProgramAction = frontend::GenerateModule; break; 1824 case OPT_emit_module_interface: 1825 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1826 case OPT_emit_header_module: 1827 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1828 case OPT_emit_pch: 1829 Opts.ProgramAction = frontend::GeneratePCH; break; 1830 case OPT_emit_interface_stubs: { 1831 StringRef ArgStr = 1832 Args.hasArg(OPT_interface_stub_version_EQ) 1833 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1834 : "experimental-ifs-v2"; 1835 if (ArgStr == "experimental-yaml-elf-v1" || 1836 ArgStr == "experimental-ifs-v1" || 1837 ArgStr == "experimental-tapi-elf-v1") { 1838 std::string ErrorMessage = 1839 "Invalid interface stub format: " + ArgStr.str() + 1840 " is deprecated."; 1841 Diags.Report(diag::err_drv_invalid_value) 1842 << "Must specify a valid interface stub format type, ie: " 1843 "-interface-stub-version=experimental-ifs-v2" 1844 << ErrorMessage; 1845 } else if (!ArgStr.startswith("experimental-ifs-")) { 1846 std::string ErrorMessage = 1847 "Invalid interface stub format: " + ArgStr.str() + "."; 1848 Diags.Report(diag::err_drv_invalid_value) 1849 << "Must specify a valid interface stub format type, ie: " 1850 "-interface-stub-version=experimental-ifs-v2" 1851 << ErrorMessage; 1852 } else { 1853 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1854 } 1855 break; 1856 } 1857 case OPT_init_only: 1858 Opts.ProgramAction = frontend::InitOnly; break; 1859 case OPT_fsyntax_only: 1860 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1861 case OPT_module_file_info: 1862 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1863 case OPT_verify_pch: 1864 Opts.ProgramAction = frontend::VerifyPCH; break; 1865 case OPT_print_preamble: 1866 Opts.ProgramAction = frontend::PrintPreamble; break; 1867 case OPT_E: 1868 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1869 case OPT_templight_dump: 1870 Opts.ProgramAction = frontend::TemplightDump; break; 1871 case OPT_rewrite_macros: 1872 Opts.ProgramAction = frontend::RewriteMacros; break; 1873 case OPT_rewrite_objc: 1874 Opts.ProgramAction = frontend::RewriteObjC; break; 1875 case OPT_rewrite_test: 1876 Opts.ProgramAction = frontend::RewriteTest; break; 1877 case OPT_analyze: 1878 Opts.ProgramAction = frontend::RunAnalysis; break; 1879 case OPT_migrate: 1880 Opts.ProgramAction = frontend::MigrateSource; break; 1881 case OPT_Eonly: 1882 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1883 case OPT_print_dependency_directives_minimized_source: 1884 Opts.ProgramAction = 1885 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1886 break; 1887 } 1888 } 1889 1890 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1891 Opts.Plugins.emplace_back(A->getValue(0)); 1892 Opts.ProgramAction = frontend::PluginAction; 1893 Opts.ActionName = A->getValue(); 1894 } 1895 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1896 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1897 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1898 1899 for (const std::string &Arg : 1900 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1901 std::string BlockName; 1902 unsigned MajorVersion; 1903 unsigned MinorVersion; 1904 bool Hashed; 1905 std::string UserInfo; 1906 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1907 MinorVersion, Hashed, UserInfo)) { 1908 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1909 1910 continue; 1911 } 1912 1913 // Add the testing module file extension. 1914 Opts.ModuleFileExtensions.push_back( 1915 std::make_shared<TestModuleFileExtension>( 1916 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1917 } 1918 1919 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1920 Opts.CodeCompletionAt = 1921 ParsedSourceLocation::FromString(A->getValue()); 1922 if (Opts.CodeCompletionAt.FileName.empty()) 1923 Diags.Report(diag::err_drv_invalid_value) 1924 << A->getAsString(Args) << A->getValue(); 1925 } 1926 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1927 1928 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1929 Opts.Plugins = Args.getAllArgValues(OPT_load); 1930 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1931 Opts.ShowHelp = Args.hasArg(OPT_help); 1932 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1933 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1934 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1935 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1936 Opts.TimeTraceGranularity = getLastArgIntValue( 1937 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1938 Opts.ShowVersion = Args.hasArg(OPT_version); 1939 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1940 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1941 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1942 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1943 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1944 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1945 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1946 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1947 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1948 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1949 Opts.ASTDumpDeclTypes = Args.hasArg(OPT_ast_dump_decl_types); 1950 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1951 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1952 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1953 // Only the -fmodule-file=<file> form. 1954 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1955 StringRef Val = A->getValue(); 1956 if (Val.find('=') == StringRef::npos) 1957 Opts.ModuleFiles.push_back(std::string(Val)); 1958 } 1959 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1960 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1961 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1962 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1963 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 1964 1965 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1966 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1967 << "-emit-module"; 1968 1969 Opts.CodeCompleteOpts.IncludeMacros 1970 = Args.hasArg(OPT_code_completion_macros); 1971 Opts.CodeCompleteOpts.IncludeCodePatterns 1972 = Args.hasArg(OPT_code_completion_patterns); 1973 Opts.CodeCompleteOpts.IncludeGlobals 1974 = !Args.hasArg(OPT_no_code_completion_globals); 1975 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1976 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1977 Opts.CodeCompleteOpts.IncludeBriefComments 1978 = Args.hasArg(OPT_code_completion_brief_comments); 1979 Opts.CodeCompleteOpts.IncludeFixIts 1980 = Args.hasArg(OPT_code_completion_with_fixits); 1981 1982 Opts.OverrideRecordLayoutsFile = 1983 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1984 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1985 if (Args.hasArg(OPT_aux_target_cpu)) 1986 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1987 if (Args.hasArg(OPT_aux_target_feature)) 1988 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1989 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1990 1991 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1992 OPT_arcmt_modify, 1993 OPT_arcmt_migrate)) { 1994 switch (A->getOption().getID()) { 1995 default: 1996 llvm_unreachable("missed a case"); 1997 case OPT_arcmt_check: 1998 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1999 break; 2000 case OPT_arcmt_modify: 2001 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 2002 break; 2003 case OPT_arcmt_migrate: 2004 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 2005 break; 2006 } 2007 } 2008 Opts.MTMigrateDir = 2009 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 2010 Opts.ARCMTMigrateReportOut = 2011 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 2012 Opts.ARCMTMigrateEmitARCErrors 2013 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 2014 2015 if (Args.hasArg(OPT_objcmt_migrate_literals)) 2016 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 2017 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 2018 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 2019 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 2020 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 2021 if (Args.hasArg(OPT_objcmt_migrate_property)) 2022 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 2023 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 2024 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 2025 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 2026 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 2027 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 2028 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 2029 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 2030 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 2031 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 2032 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 2033 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 2034 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 2035 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 2036 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 2037 if (Args.hasArg(OPT_objcmt_atomic_property)) 2038 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 2039 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 2040 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 2041 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 2042 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 2043 if (Args.hasArg(OPT_objcmt_migrate_all)) 2044 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 2045 2046 Opts.ObjCMTWhiteListPath = 2047 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 2048 2049 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2050 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2051 Diags.Report(diag::err_drv_argument_not_allowed_with) 2052 << "ARC migration" << "ObjC migration"; 2053 } 2054 2055 InputKind DashX(Language::Unknown); 2056 if (const Arg *A = Args.getLastArg(OPT_x)) { 2057 StringRef XValue = A->getValue(); 2058 2059 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2060 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2061 bool Preprocessed = XValue.consume_back("-cpp-output"); 2062 bool ModuleMap = XValue.consume_back("-module-map"); 2063 IsHeaderFile = !Preprocessed && !ModuleMap && 2064 XValue != "precompiled-header" && 2065 XValue.consume_back("-header"); 2066 2067 // Principal languages. 2068 DashX = llvm::StringSwitch<InputKind>(XValue) 2069 .Case("c", Language::C) 2070 .Case("cl", Language::OpenCL) 2071 .Case("cuda", Language::CUDA) 2072 .Case("hip", Language::HIP) 2073 .Case("c++", Language::CXX) 2074 .Case("objective-c", Language::ObjC) 2075 .Case("objective-c++", Language::ObjCXX) 2076 .Case("renderscript", Language::RenderScript) 2077 .Default(Language::Unknown); 2078 2079 // "objc[++]-cpp-output" is an acceptable synonym for 2080 // "objective-c[++]-cpp-output". 2081 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2082 DashX = llvm::StringSwitch<InputKind>(XValue) 2083 .Case("objc", Language::ObjC) 2084 .Case("objc++", Language::ObjCXX) 2085 .Default(Language::Unknown); 2086 2087 // Some special cases cannot be combined with suffixes. 2088 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2089 DashX = llvm::StringSwitch<InputKind>(XValue) 2090 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2091 .Case("assembler-with-cpp", Language::Asm) 2092 .Cases("ast", "pcm", "precompiled-header", 2093 InputKind(Language::Unknown, InputKind::Precompiled)) 2094 .Case("ir", Language::LLVM_IR) 2095 .Default(Language::Unknown); 2096 2097 if (DashX.isUnknown()) 2098 Diags.Report(diag::err_drv_invalid_value) 2099 << A->getAsString(Args) << A->getValue(); 2100 2101 if (Preprocessed) 2102 DashX = DashX.getPreprocessed(); 2103 if (ModuleMap) 2104 DashX = DashX.withFormat(InputKind::ModuleMap); 2105 } 2106 2107 // '-' is the default input if none is given. 2108 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2109 Opts.Inputs.clear(); 2110 if (Inputs.empty()) 2111 Inputs.push_back("-"); 2112 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2113 InputKind IK = DashX; 2114 if (IK.isUnknown()) { 2115 IK = FrontendOptions::getInputKindForExtension( 2116 StringRef(Inputs[i]).rsplit('.').second); 2117 // FIXME: Warn on this? 2118 if (IK.isUnknown()) 2119 IK = Language::C; 2120 // FIXME: Remove this hack. 2121 if (i == 0) 2122 DashX = IK; 2123 } 2124 2125 bool IsSystem = false; 2126 2127 // The -emit-module action implicitly takes a module map. 2128 if (Opts.ProgramAction == frontend::GenerateModule && 2129 IK.getFormat() == InputKind::Source) { 2130 IK = IK.withFormat(InputKind::ModuleMap); 2131 IsSystem = Opts.IsSystemModule; 2132 } 2133 2134 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2135 } 2136 2137 return DashX; 2138 } 2139 2140 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2141 void *MainAddr) { 2142 std::string ClangExecutable = 2143 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2144 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2145 } 2146 2147 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2148 const std::string &WorkingDir) { 2149 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2150 Opts.Verbose = Args.hasArg(OPT_v); 2151 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2152 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2153 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2154 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2155 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2156 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2157 2158 // Canonicalize -fmodules-cache-path before storing it. 2159 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2160 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2161 if (WorkingDir.empty()) 2162 llvm::sys::fs::make_absolute(P); 2163 else 2164 llvm::sys::fs::make_absolute(WorkingDir, P); 2165 } 2166 llvm::sys::path::remove_dots(P); 2167 Opts.ModuleCachePath = std::string(P.str()); 2168 2169 Opts.ModuleUserBuildPath = 2170 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2171 // Only the -fmodule-file=<name>=<file> form. 2172 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2173 StringRef Val = A->getValue(); 2174 if (Val.find('=') != StringRef::npos){ 2175 auto Split = Val.split('='); 2176 Opts.PrebuiltModuleFiles.insert( 2177 {std::string(Split.first), std::string(Split.second)}); 2178 } 2179 } 2180 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2181 Opts.AddPrebuiltModulePath(A->getValue()); 2182 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2183 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2184 Opts.ModulesValidateDiagnosticOptions = 2185 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2186 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2187 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2188 Opts.ModuleCachePruneInterval = 2189 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2190 Opts.ModuleCachePruneAfter = 2191 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2192 Opts.ModulesValidateOncePerBuildSession = 2193 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2194 Opts.BuildSessionTimestamp = 2195 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2196 Opts.ModulesValidateSystemHeaders = 2197 Args.hasArg(OPT_fmodules_validate_system_headers); 2198 Opts.ValidateASTInputFilesContent = 2199 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2200 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2201 Opts.ModuleFormat = A->getValue(); 2202 2203 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2204 StringRef MacroDef = A->getValue(); 2205 Opts.ModulesIgnoreMacros.insert( 2206 llvm::CachedHashString(MacroDef.split('=').first)); 2207 } 2208 2209 // Add -I..., -F..., and -index-header-map options in order. 2210 bool IsIndexHeaderMap = false; 2211 bool IsSysrootSpecified = 2212 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2213 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2214 if (A->getOption().matches(OPT_index_header_map)) { 2215 // -index-header-map applies to the next -I or -F. 2216 IsIndexHeaderMap = true; 2217 continue; 2218 } 2219 2220 frontend::IncludeDirGroup Group = 2221 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2222 2223 bool IsFramework = A->getOption().matches(OPT_F); 2224 std::string Path = A->getValue(); 2225 2226 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2227 SmallString<32> Buffer; 2228 llvm::sys::path::append(Buffer, Opts.Sysroot, 2229 llvm::StringRef(A->getValue()).substr(1)); 2230 Path = std::string(Buffer.str()); 2231 } 2232 2233 Opts.AddPath(Path, Group, IsFramework, 2234 /*IgnoreSysroot*/ true); 2235 IsIndexHeaderMap = false; 2236 } 2237 2238 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2239 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2240 for (const auto *A : 2241 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2242 if (A->getOption().matches(OPT_iprefix)) 2243 Prefix = A->getValue(); 2244 else if (A->getOption().matches(OPT_iwithprefix)) 2245 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2246 else 2247 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2248 } 2249 2250 for (const auto *A : Args.filtered(OPT_idirafter)) 2251 Opts.AddPath(A->getValue(), frontend::After, false, true); 2252 for (const auto *A : Args.filtered(OPT_iquote)) 2253 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2254 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2255 Opts.AddPath(A->getValue(), frontend::System, false, 2256 !A->getOption().matches(OPT_iwithsysroot)); 2257 for (const auto *A : Args.filtered(OPT_iframework)) 2258 Opts.AddPath(A->getValue(), frontend::System, true, true); 2259 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2260 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2261 /*IgnoreSysRoot=*/false); 2262 2263 // Add the paths for the various language specific isystem flags. 2264 for (const auto *A : Args.filtered(OPT_c_isystem)) 2265 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2266 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2267 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2268 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2269 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2270 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2271 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2272 2273 // Add the internal paths from a driver that detects standard include paths. 2274 for (const auto *A : 2275 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2276 frontend::IncludeDirGroup Group = frontend::System; 2277 if (A->getOption().matches(OPT_internal_externc_isystem)) 2278 Group = frontend::ExternCSystem; 2279 Opts.AddPath(A->getValue(), Group, false, true); 2280 } 2281 2282 // Add the path prefixes which are implicitly treated as being system headers. 2283 for (const auto *A : 2284 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2285 Opts.AddSystemHeaderPrefix( 2286 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2287 2288 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2289 Opts.AddVFSOverlayFile(A->getValue()); 2290 } 2291 2292 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2293 const llvm::Triple &T, 2294 PreprocessorOptions &PPOpts, 2295 LangStandard::Kind LangStd) { 2296 // Set some properties which depend solely on the input kind; it would be nice 2297 // to move these to the language standard, and have the driver resolve the 2298 // input kind + language standard. 2299 // 2300 // FIXME: Perhaps a better model would be for a single source file to have 2301 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2302 // simultaneously active? 2303 if (IK.getLanguage() == Language::Asm) { 2304 Opts.AsmPreprocessor = 1; 2305 } else if (IK.isObjectiveC()) { 2306 Opts.ObjC = 1; 2307 } 2308 2309 if (LangStd == LangStandard::lang_unspecified) { 2310 // Based on the base language, pick one. 2311 switch (IK.getLanguage()) { 2312 case Language::Unknown: 2313 case Language::LLVM_IR: 2314 llvm_unreachable("Invalid input kind!"); 2315 case Language::OpenCL: 2316 LangStd = LangStandard::lang_opencl10; 2317 break; 2318 case Language::CUDA: 2319 LangStd = LangStandard::lang_cuda; 2320 break; 2321 case Language::Asm: 2322 case Language::C: 2323 #if defined(CLANG_DEFAULT_STD_C) 2324 LangStd = CLANG_DEFAULT_STD_C; 2325 #else 2326 // The PS4 uses C99 as the default C standard. 2327 if (T.isPS4()) 2328 LangStd = LangStandard::lang_gnu99; 2329 else 2330 LangStd = LangStandard::lang_gnu17; 2331 #endif 2332 break; 2333 case Language::ObjC: 2334 #if defined(CLANG_DEFAULT_STD_C) 2335 LangStd = CLANG_DEFAULT_STD_C; 2336 #else 2337 LangStd = LangStandard::lang_gnu11; 2338 #endif 2339 break; 2340 case Language::CXX: 2341 case Language::ObjCXX: 2342 #if defined(CLANG_DEFAULT_STD_CXX) 2343 LangStd = CLANG_DEFAULT_STD_CXX; 2344 #else 2345 LangStd = LangStandard::lang_gnucxx14; 2346 #endif 2347 break; 2348 case Language::RenderScript: 2349 LangStd = LangStandard::lang_c99; 2350 break; 2351 case Language::HIP: 2352 LangStd = LangStandard::lang_hip; 2353 break; 2354 } 2355 } 2356 2357 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2358 Opts.LineComment = Std.hasLineComments(); 2359 Opts.C99 = Std.isC99(); 2360 Opts.C11 = Std.isC11(); 2361 Opts.C17 = Std.isC17(); 2362 Opts.C2x = Std.isC2x(); 2363 Opts.CPlusPlus = Std.isCPlusPlus(); 2364 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2365 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2366 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2367 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 2368 Opts.Digraphs = Std.hasDigraphs(); 2369 Opts.GNUMode = Std.isGNUMode(); 2370 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2371 Opts.GNUCVersion = 0; 2372 Opts.HexFloats = Std.hasHexFloats(); 2373 Opts.ImplicitInt = Std.hasImplicitInt(); 2374 2375 // Set OpenCL Version. 2376 Opts.OpenCL = Std.isOpenCL(); 2377 if (LangStd == LangStandard::lang_opencl10) 2378 Opts.OpenCLVersion = 100; 2379 else if (LangStd == LangStandard::lang_opencl11) 2380 Opts.OpenCLVersion = 110; 2381 else if (LangStd == LangStandard::lang_opencl12) 2382 Opts.OpenCLVersion = 120; 2383 else if (LangStd == LangStandard::lang_opencl20) 2384 Opts.OpenCLVersion = 200; 2385 else if (LangStd == LangStandard::lang_opencl30) 2386 Opts.OpenCLVersion = 300; 2387 else if (LangStd == LangStandard::lang_openclcpp) 2388 Opts.OpenCLCPlusPlusVersion = 100; 2389 2390 // OpenCL has some additional defaults. 2391 if (Opts.OpenCL) { 2392 Opts.AltiVec = 0; 2393 Opts.ZVector = 0; 2394 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2395 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2396 Opts.NativeHalfType = 1; 2397 Opts.NativeHalfArgsAndReturns = 1; 2398 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2399 2400 // Include default header file for OpenCL. 2401 if (Opts.IncludeDefaultHeader) { 2402 if (Opts.DeclareOpenCLBuiltins) { 2403 // Only include base header file for builtin types and constants. 2404 PPOpts.Includes.push_back("opencl-c-base.h"); 2405 } else { 2406 PPOpts.Includes.push_back("opencl-c.h"); 2407 } 2408 } 2409 } 2410 2411 Opts.HIP = IK.getLanguage() == Language::HIP; 2412 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2413 if (Opts.CUDA) 2414 // Set default FP_CONTRACT to FAST. 2415 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2416 2417 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2418 if (Opts.RenderScript) { 2419 Opts.NativeHalfType = 1; 2420 Opts.NativeHalfArgsAndReturns = 1; 2421 } 2422 2423 // OpenCL and C++ both have bool, true, false keywords. 2424 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2425 2426 // OpenCL has half keyword 2427 Opts.Half = Opts.OpenCL; 2428 2429 // C++ has wchar_t keyword. 2430 Opts.WChar = Opts.CPlusPlus; 2431 2432 Opts.GNUKeywords = Opts.GNUMode; 2433 Opts.CXXOperatorNames = Opts.CPlusPlus; 2434 2435 Opts.AlignedAllocation = Opts.CPlusPlus17; 2436 2437 Opts.DollarIdents = !Opts.AsmPreprocessor; 2438 2439 // Enable [[]] attributes in C++11 and C2x by default. 2440 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2441 } 2442 2443 /// Attempt to parse a visibility value out of the given argument. 2444 static Visibility parseVisibility(Arg *arg, ArgList &args, 2445 DiagnosticsEngine &diags) { 2446 StringRef value = arg->getValue(); 2447 if (value == "default") { 2448 return DefaultVisibility; 2449 } else if (value == "hidden" || value == "internal") { 2450 return HiddenVisibility; 2451 } else if (value == "protected") { 2452 // FIXME: diagnose if target does not support protected visibility 2453 return ProtectedVisibility; 2454 } 2455 2456 diags.Report(diag::err_drv_invalid_value) 2457 << arg->getAsString(args) << value; 2458 return DefaultVisibility; 2459 } 2460 2461 /// Check if input file kind and language standard are compatible. 2462 static bool IsInputCompatibleWithStandard(InputKind IK, 2463 const LangStandard &S) { 2464 switch (IK.getLanguage()) { 2465 case Language::Unknown: 2466 case Language::LLVM_IR: 2467 llvm_unreachable("should not parse language flags for this input"); 2468 2469 case Language::C: 2470 case Language::ObjC: 2471 case Language::RenderScript: 2472 return S.getLanguage() == Language::C; 2473 2474 case Language::OpenCL: 2475 return S.getLanguage() == Language::OpenCL; 2476 2477 case Language::CXX: 2478 case Language::ObjCXX: 2479 return S.getLanguage() == Language::CXX; 2480 2481 case Language::CUDA: 2482 // FIXME: What -std= values should be permitted for CUDA compilations? 2483 return S.getLanguage() == Language::CUDA || 2484 S.getLanguage() == Language::CXX; 2485 2486 case Language::HIP: 2487 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2488 2489 case Language::Asm: 2490 // Accept (and ignore) all -std= values. 2491 // FIXME: The -std= value is not ignored; it affects the tokenization 2492 // and preprocessing rules if we're preprocessing this asm input. 2493 return true; 2494 } 2495 2496 llvm_unreachable("unexpected input language"); 2497 } 2498 2499 /// Get language name for given input kind. 2500 static const StringRef GetInputKindName(InputKind IK) { 2501 switch (IK.getLanguage()) { 2502 case Language::C: 2503 return "C"; 2504 case Language::ObjC: 2505 return "Objective-C"; 2506 case Language::CXX: 2507 return "C++"; 2508 case Language::ObjCXX: 2509 return "Objective-C++"; 2510 case Language::OpenCL: 2511 return "OpenCL"; 2512 case Language::CUDA: 2513 return "CUDA"; 2514 case Language::RenderScript: 2515 return "RenderScript"; 2516 case Language::HIP: 2517 return "HIP"; 2518 2519 case Language::Asm: 2520 return "Asm"; 2521 case Language::LLVM_IR: 2522 return "LLVM IR"; 2523 2524 case Language::Unknown: 2525 break; 2526 } 2527 llvm_unreachable("unknown input language"); 2528 } 2529 2530 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2531 const TargetOptions &TargetOpts, 2532 PreprocessorOptions &PPOpts, 2533 DiagnosticsEngine &Diags) { 2534 // FIXME: Cleanup per-file based stuff. 2535 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2536 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2537 LangStd = LangStandard::getLangKind(A->getValue()); 2538 if (LangStd == LangStandard::lang_unspecified) { 2539 Diags.Report(diag::err_drv_invalid_value) 2540 << A->getAsString(Args) << A->getValue(); 2541 // Report supported standards with short description. 2542 for (unsigned KindValue = 0; 2543 KindValue != LangStandard::lang_unspecified; 2544 ++KindValue) { 2545 const LangStandard &Std = LangStandard::getLangStandardForKind( 2546 static_cast<LangStandard::Kind>(KindValue)); 2547 if (IsInputCompatibleWithStandard(IK, Std)) { 2548 auto Diag = Diags.Report(diag::note_drv_use_standard); 2549 Diag << Std.getName() << Std.getDescription(); 2550 unsigned NumAliases = 0; 2551 #define LANGSTANDARD(id, name, lang, desc, features) 2552 #define LANGSTANDARD_ALIAS(id, alias) \ 2553 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2554 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2555 #include "clang/Basic/LangStandards.def" 2556 Diag << NumAliases; 2557 #define LANGSTANDARD(id, name, lang, desc, features) 2558 #define LANGSTANDARD_ALIAS(id, alias) \ 2559 if (KindValue == LangStandard::lang_##id) Diag << alias; 2560 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2561 #include "clang/Basic/LangStandards.def" 2562 } 2563 } 2564 } else { 2565 // Valid standard, check to make sure language and standard are 2566 // compatible. 2567 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2568 if (!IsInputCompatibleWithStandard(IK, Std)) { 2569 Diags.Report(diag::err_drv_argument_not_allowed_with) 2570 << A->getAsString(Args) << GetInputKindName(IK); 2571 } 2572 } 2573 } 2574 2575 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2576 Opts.DllExportInlines = false; 2577 2578 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2579 StringRef Name = A->getValue(); 2580 if (Name == "full" || Name == "branch") { 2581 Opts.CFProtectionBranch = 1; 2582 } 2583 } 2584 // -cl-std only applies for OpenCL language standards. 2585 // Override the -std option in this case. 2586 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2587 LangStandard::Kind OpenCLLangStd 2588 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2589 .Cases("cl", "CL", LangStandard::lang_opencl10) 2590 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2591 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2592 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2593 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 2594 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2595 .Default(LangStandard::lang_unspecified); 2596 2597 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2598 Diags.Report(diag::err_drv_invalid_value) 2599 << A->getAsString(Args) << A->getValue(); 2600 } 2601 else 2602 LangStd = OpenCLLangStd; 2603 } 2604 2605 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2606 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2607 if (Opts.SYCL) { 2608 // -sycl-std applies to any SYCL source, not only those containing kernels, 2609 // but also those using the SYCL API 2610 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2611 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2612 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2613 .Default(0U); 2614 2615 if (Opts.SYCLVersion == 0U) { 2616 // User has passed an invalid value to the flag, this is an error 2617 Diags.Report(diag::err_drv_invalid_value) 2618 << A->getAsString(Args) << A->getValue(); 2619 } 2620 } 2621 } 2622 2623 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2624 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2625 2626 llvm::Triple T(TargetOpts.Triple); 2627 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2628 2629 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2630 // This option should be deprecated for CL > 1.0 because 2631 // this option was added for compatibility with OpenCL 1.0. 2632 if (Args.getLastArg(OPT_cl_strict_aliasing) 2633 && Opts.OpenCLVersion > 100) { 2634 Diags.Report(diag::warn_option_invalid_ocl_version) 2635 << Opts.getOpenCLVersionTuple().getAsString() 2636 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2637 } 2638 2639 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2640 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2641 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2642 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2643 // name, as it doesn't seem a useful distinction. 2644 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2645 Opts.GNUKeywords); 2646 2647 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2648 2649 if (Args.hasArg(OPT_fno_operator_names)) 2650 Opts.CXXOperatorNames = 0; 2651 2652 if (Args.hasArg(OPT_fcuda_is_device)) 2653 Opts.CUDAIsDevice = 1; 2654 2655 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2656 Opts.CUDAAllowVariadicFunctions = 1; 2657 2658 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2659 Opts.CUDAHostDeviceConstexpr = 0; 2660 2661 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2662 Opts.CUDADeviceApproxTranscendentals = 1; 2663 2664 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2665 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2666 if (Opts.HIP) 2667 Opts.GPUAllowDeviceInit = 1; 2668 else 2669 Diags.Report(diag::warn_ignored_hip_only_option) 2670 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2671 } 2672 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2673 if (Opts.HIP) 2674 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2675 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2676 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2677 Diags.Report(diag::warn_ignored_hip_only_option) 2678 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2679 2680 if (Opts.ObjC) { 2681 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2682 StringRef value = arg->getValue(); 2683 if (Opts.ObjCRuntime.tryParse(value)) 2684 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2685 } 2686 2687 if (Args.hasArg(OPT_fobjc_gc_only)) 2688 Opts.setGC(LangOptions::GCOnly); 2689 else if (Args.hasArg(OPT_fobjc_gc)) 2690 Opts.setGC(LangOptions::HybridGC); 2691 else if (Args.hasArg(OPT_fobjc_arc)) { 2692 Opts.ObjCAutoRefCount = 1; 2693 if (!Opts.ObjCRuntime.allowsARC()) 2694 Diags.Report(diag::err_arc_unsupported_on_runtime); 2695 } 2696 2697 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2698 // whether the feature is actually enabled. This is predominantly 2699 // determined by -fobjc-runtime, but we allow it to be overridden 2700 // from the command line for testing purposes. 2701 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2702 Opts.ObjCWeakRuntime = 1; 2703 else 2704 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2705 2706 // ObjCWeak determines whether __weak is actually enabled. 2707 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2708 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2709 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2710 assert(!Opts.ObjCWeak); 2711 } else if (Opts.getGC() != LangOptions::NonGC) { 2712 Diags.Report(diag::err_objc_weak_with_gc); 2713 } else if (!Opts.ObjCWeakRuntime) { 2714 Diags.Report(diag::err_objc_weak_unsupported); 2715 } else { 2716 Opts.ObjCWeak = 1; 2717 } 2718 } else if (Opts.ObjCAutoRefCount) { 2719 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2720 } 2721 2722 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2723 Opts.ObjCInferRelatedResultType = 0; 2724 2725 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2726 Opts.ObjCSubscriptingLegacyRuntime = 2727 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2728 } 2729 2730 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2731 // Check that the version has 1 to 3 components and the minor and patch 2732 // versions fit in two decimal digits. 2733 VersionTuple GNUCVer; 2734 bool Invalid = GNUCVer.tryParse(A->getValue()); 2735 unsigned Major = GNUCVer.getMajor(); 2736 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2737 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2738 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2739 Diags.Report(diag::err_drv_invalid_value) 2740 << A->getAsString(Args) << A->getValue(); 2741 } 2742 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2743 } 2744 2745 if (Args.hasArg(OPT_fgnu89_inline)) { 2746 if (Opts.CPlusPlus) 2747 Diags.Report(diag::err_drv_argument_not_allowed_with) 2748 << "-fgnu89-inline" << GetInputKindName(IK); 2749 else 2750 Opts.GNUInline = 1; 2751 } 2752 2753 if (Args.hasArg(OPT_fapple_kext)) { 2754 if (!Opts.CPlusPlus) 2755 Diags.Report(diag::warn_c_kext); 2756 else 2757 Opts.AppleKext = 1; 2758 } 2759 2760 if (Args.hasArg(OPT_print_ivar_layout)) 2761 Opts.ObjCGCBitmapPrint = 1; 2762 2763 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2764 Opts.NoConstantCFStrings = 1; 2765 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2766 Opts.CFRuntime = 2767 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2768 .Cases("unspecified", "standalone", "objc", 2769 LangOptions::CoreFoundationABI::ObjectiveC) 2770 .Cases("swift", "swift-5.0", 2771 LangOptions::CoreFoundationABI::Swift5_0) 2772 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2773 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2774 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2775 2776 if (Args.hasArg(OPT_fzvector)) 2777 Opts.ZVector = 1; 2778 2779 if (Args.hasArg(OPT_pthread)) 2780 Opts.POSIXThreads = 1; 2781 2782 // The value-visibility mode defaults to "default". 2783 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2784 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2785 } else { 2786 Opts.setValueVisibilityMode(DefaultVisibility); 2787 } 2788 2789 // The type-visibility mode defaults to the value-visibility mode. 2790 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2791 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2792 } else { 2793 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2794 } 2795 2796 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2797 Opts.InlineVisibilityHidden = 1; 2798 2799 if (Args.hasArg(OPT_fvisibility_inlines_hidden_static_local_var)) 2800 Opts.VisibilityInlinesHiddenStaticLocalVar = 1; 2801 2802 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2803 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2804 2805 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2806 Opts.SetVisibilityForExternDecls = 1; 2807 2808 if (Args.hasArg(OPT_ftrapv)) { 2809 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2810 // Set the handler, if one is specified. 2811 Opts.OverflowHandler = 2812 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2813 } 2814 else if (Args.hasArg(OPT_fwrapv)) 2815 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2816 2817 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2818 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2819 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2820 Opts.MSCompatibilityVersion = 0; 2821 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2822 VersionTuple VT; 2823 if (VT.tryParse(A->getValue())) 2824 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2825 << A->getValue(); 2826 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2827 VT.getMinor().getValueOr(0) * 100000 + 2828 VT.getSubminor().getValueOr(0); 2829 } 2830 2831 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2832 // is specified, or -std is set to a conforming mode. 2833 // Trigraphs are disabled by default in c++1z onwards. 2834 // For z/OS, trigraphs are enabled by default (without regard to the above). 2835 Opts.Trigraphs = 2836 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 2837 Opts.Trigraphs = 2838 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2839 2840 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2841 OPT_fno_dollars_in_identifiers, 2842 Opts.DollarIdents); 2843 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2844 Opts.setVtorDispMode( 2845 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2846 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2847 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2848 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2849 Opts.ConstStrings); 2850 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2851 using LaxKind = LangOptions::LaxVectorConversionKind; 2852 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2853 .Case("none", LaxKind::None) 2854 .Case("integer", LaxKind::Integer) 2855 .Case("all", LaxKind::All) 2856 .Default(llvm::None)) 2857 Opts.setLaxVectorConversions(*Kind); 2858 else 2859 Diags.Report(diag::err_drv_invalid_value) 2860 << A->getAsString(Args) << A->getValue(); 2861 } 2862 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2863 Opts.ThreadsafeStatics = 0; 2864 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2865 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2866 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2867 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2868 2869 // -ffixed-point 2870 Opts.FixedPoint = 2871 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2872 !Opts.CPlusPlus; 2873 Opts.PaddingOnUnsignedFixedPoint = 2874 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2875 OPT_fno_padding_on_unsigned_fixed_point, 2876 /*Default=*/false) && 2877 Opts.FixedPoint; 2878 2879 // Handle exception personalities 2880 Arg *A = Args.getLastArg( 2881 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2882 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2883 if (A) { 2884 const Option &Opt = A->getOption(); 2885 llvm::Triple T(TargetOpts.Triple); 2886 if (T.isWindowsMSVCEnvironment()) 2887 Diags.Report(diag::err_fe_invalid_exception_model) 2888 << Opt.getName() << T.str(); 2889 2890 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2891 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2892 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2893 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2894 } 2895 2896 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2897 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2898 2899 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2900 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2901 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2902 && Opts.OpenCLVersion == 200); 2903 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2904 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2905 2906 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2907 Opts.SYCLIsDevice || 2908 Args.hasArg(OPT_fconvergent_functions); 2909 2910 Opts.DoubleSquareBracketAttributes = 2911 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2912 OPT_fno_double_square_bracket_attributes, 2913 Opts.DoubleSquareBracketAttributes); 2914 2915 Opts.CPlusPlusModules = Opts.CPlusPlus20; 2916 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2917 Opts.Modules = 2918 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2919 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2920 Opts.ModulesDeclUse = 2921 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2922 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2923 // enter a different module (eg, when building a header unit). 2924 Opts.ModulesLocalVisibility = 2925 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2926 Opts.CPlusPlusModules; 2927 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2928 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2929 Opts.ModulesSearchAll = Opts.Modules && 2930 !Args.hasArg(OPT_fno_modules_search_all) && 2931 Args.hasArg(OPT_fmodules_search_all); 2932 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2933 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2934 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2935 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2936 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 2937 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2938 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2939 .Case("char", 1) 2940 .Case("short", 2) 2941 .Case("int", 4) 2942 .Default(0); 2943 if (Opts.WCharSize == 0) 2944 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2945 } 2946 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2947 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2948 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2949 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2950 if (!Opts.NoBuiltin) 2951 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2952 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2953 Opts.RelaxedTemplateTemplateArgs = 2954 Args.hasArg(OPT_frelaxed_template_template_args); 2955 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2956 Opts.AlignedAllocation = 2957 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2958 Opts.AlignedAllocation); 2959 Opts.AlignedAllocationUnavailable = 2960 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2961 Opts.NewAlignOverride = 2962 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2963 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2964 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2965 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2966 << A->getValue(); 2967 Opts.NewAlignOverride = 0; 2968 } 2969 Opts.ConceptSatisfactionCaching = 2970 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2971 if (Args.hasArg(OPT_fconcepts_ts)) 2972 Diags.Report(diag::warn_fe_concepts_ts_flag); 2973 // Recovery AST still heavily relies on dependent-type machinery. 2974 Opts.RecoveryAST = 2975 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, Opts.CPlusPlus); 2976 Opts.RecoveryASTType = Args.hasFlag( 2977 OPT_frecovery_ast_type, OPT_fno_recovery_ast_type, Opts.CPlusPlus); 2978 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2979 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2980 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2981 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2982 Opts.InstantiationDepth = 2983 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2984 Opts.ArrowDepth = 2985 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2986 Opts.ConstexprCallDepth = 2987 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2988 Opts.ConstexprStepLimit = 2989 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2990 Opts.EnableNewConstInterp = 2991 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2992 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2993 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2994 Opts.NumLargeByValueCopy = 2995 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2996 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2997 Opts.ObjCConstantStringClass = 2998 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2999 Opts.ObjCDefaultSynthProperties = 3000 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 3001 Opts.EncodeExtendedBlockSig = 3002 Args.hasArg(OPT_fencode_extended_block_signature); 3003 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 3004 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 3005 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 3006 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 3007 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 3008 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3009 ? 128 3010 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3011 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 3012 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3013 Opts.ROPI = Args.hasArg(OPT_fropi); 3014 Opts.RWPI = Args.hasArg(OPT_frwpi); 3015 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3016 Opts.Static = Args.hasArg(OPT_static_define); 3017 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 3018 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 3019 || Args.hasArg(OPT_fdump_record_layouts); 3020 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 3021 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 3022 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 3023 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 3024 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 3025 if (Opts.FastRelaxedMath) 3026 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3027 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 3028 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 3029 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 3030 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 3031 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 3032 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 3033 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 3034 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 3035 Opts.CurrentModule = Opts.ModuleName; 3036 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 3037 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 3038 llvm::sort(Opts.ModuleFeatures); 3039 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 3040 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 3041 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 3042 // is enabled. 3043 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 3044 | Opts.NativeHalfArgsAndReturns; 3045 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 3046 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 3047 3048 Opts.ArmSveVectorBits = 3049 getLastArgIntValue(Args, options::OPT_msve_vector_bits_EQ, 0, Diags); 3050 3051 // __declspec is enabled by default for the PS4 by the driver, and also 3052 // enabled for Microsoft Extensions or Borland Extensions, here. 3053 // 3054 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 3055 // CUDA extension. However, it is required for supporting 3056 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 3057 // been rewritten in terms of something more generic, remove the Opts.CUDA 3058 // term here. 3059 Opts.DeclSpecKeyword = 3060 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 3061 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 3062 3063 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 3064 switch (llvm::StringSwitch<unsigned>(A->getValue()) 3065 .Case("target", LangOptions::ASMM_Target) 3066 .Case("no", LangOptions::ASMM_Off) 3067 .Case("yes", LangOptions::ASMM_On) 3068 .Default(255)) { 3069 default: 3070 Diags.Report(diag::err_drv_invalid_value) 3071 << "-faddress-space-map-mangling=" << A->getValue(); 3072 break; 3073 case LangOptions::ASMM_Target: 3074 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 3075 break; 3076 case LangOptions::ASMM_On: 3077 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 3078 break; 3079 case LangOptions::ASMM_Off: 3080 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 3081 break; 3082 } 3083 } 3084 3085 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 3086 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 3087 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 3088 A->getValue()) 3089 .Case("single", 3090 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3091 .Case("multiple", 3092 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3093 .Case("virtual", 3094 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3095 .Default(LangOptions::PPTMK_BestCase); 3096 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3097 Diags.Report(diag::err_drv_invalid_value) 3098 << "-fms-memptr-rep=" << A->getValue(); 3099 3100 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3101 } 3102 3103 // Check for MS default calling conventions being specified. 3104 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3105 LangOptions::DefaultCallingConvention DefaultCC = 3106 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3107 .Case("cdecl", LangOptions::DCC_CDecl) 3108 .Case("fastcall", LangOptions::DCC_FastCall) 3109 .Case("stdcall", LangOptions::DCC_StdCall) 3110 .Case("vectorcall", LangOptions::DCC_VectorCall) 3111 .Case("regcall", LangOptions::DCC_RegCall) 3112 .Default(LangOptions::DCC_None); 3113 if (DefaultCC == LangOptions::DCC_None) 3114 Diags.Report(diag::err_drv_invalid_value) 3115 << "-fdefault-calling-conv=" << A->getValue(); 3116 3117 llvm::Triple T(TargetOpts.Triple); 3118 llvm::Triple::ArchType Arch = T.getArch(); 3119 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3120 DefaultCC == LangOptions::DCC_StdCall) && 3121 Arch != llvm::Triple::x86; 3122 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3123 DefaultCC == LangOptions::DCC_RegCall) && 3124 !T.isX86(); 3125 if (emitError) 3126 Diags.Report(diag::err_drv_argument_not_allowed_with) 3127 << A->getSpelling() << T.getTriple(); 3128 else 3129 Opts.setDefaultCallingConv(DefaultCC); 3130 } 3131 3132 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3133 // An explicit -fno-semantic-interposition infers dso_local. 3134 Opts.ExplicitNoSemanticInterposition = 3135 Args.hasArg(OPT_fno_semantic_interposition); 3136 3137 // -mrtd option 3138 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3139 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3140 Diags.Report(diag::err_drv_argument_not_allowed_with) 3141 << A->getSpelling() << "-fdefault-calling-conv"; 3142 else { 3143 llvm::Triple T(TargetOpts.Triple); 3144 if (T.getArch() != llvm::Triple::x86) 3145 Diags.Report(diag::err_drv_argument_not_allowed_with) 3146 << A->getSpelling() << T.getTriple(); 3147 else 3148 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3149 } 3150 } 3151 3152 // Check if -fopenmp is specified and set default version to 5.0. 3153 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 50 : 0; 3154 // Check if -fopenmp-simd is specified. 3155 bool IsSimdSpecified = 3156 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3157 /*Default=*/false); 3158 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3159 Opts.OpenMPUseTLS = 3160 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3161 Opts.OpenMPIsDevice = 3162 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3163 Opts.OpenMPIRBuilder = 3164 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3165 bool IsTargetSpecified = 3166 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3167 3168 if (Opts.OpenMP || Opts.OpenMPSimd) { 3169 if (int Version = getLastArgIntValue( 3170 Args, OPT_fopenmp_version_EQ, 3171 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3172 Opts.OpenMP = Version; 3173 // Provide diagnostic when a given target is not expected to be an OpenMP 3174 // device or host. 3175 if (!Opts.OpenMPIsDevice) { 3176 switch (T.getArch()) { 3177 default: 3178 break; 3179 // Add unsupported host targets here: 3180 case llvm::Triple::nvptx: 3181 case llvm::Triple::nvptx64: 3182 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3183 << TargetOpts.Triple; 3184 break; 3185 } 3186 } 3187 } 3188 3189 // Set the flag to prevent the implementation from emitting device exception 3190 // handling code for those requiring so. 3191 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3192 Opts.OpenCLCPlusPlus) { 3193 Opts.Exceptions = 0; 3194 Opts.CXXExceptions = 0; 3195 } 3196 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3197 Opts.OpenMPCUDANumSMs = 3198 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3199 Opts.OpenMPCUDANumSMs, Diags); 3200 Opts.OpenMPCUDABlocksPerSM = 3201 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3202 Opts.OpenMPCUDABlocksPerSM, Diags); 3203 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3204 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3205 Opts.OpenMPCUDAReductionBufNum, Diags); 3206 } 3207 3208 // Prevent auto-widening the representation of loop counters during an 3209 // OpenMP collapse clause. 3210 Opts.OpenMPOptimisticCollapse = 3211 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3212 3213 // Get the OpenMP target triples if any. 3214 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3215 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3216 auto getArchPtrSize = [](const llvm::Triple &T) { 3217 if (T.isArch16Bit()) 3218 return Arch16Bit; 3219 if (T.isArch32Bit()) 3220 return Arch32Bit; 3221 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3222 return Arch64Bit; 3223 }; 3224 3225 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3226 llvm::Triple TT(A->getValue(i)); 3227 3228 if (TT.getArch() == llvm::Triple::UnknownArch || 3229 !(TT.getArch() == llvm::Triple::aarch64 || 3230 TT.getArch() == llvm::Triple::ppc || 3231 TT.getArch() == llvm::Triple::ppc64 || 3232 TT.getArch() == llvm::Triple::ppc64le || 3233 TT.getArch() == llvm::Triple::nvptx || 3234 TT.getArch() == llvm::Triple::nvptx64 || 3235 TT.getArch() == llvm::Triple::amdgcn || 3236 TT.getArch() == llvm::Triple::x86 || 3237 TT.getArch() == llvm::Triple::x86_64)) 3238 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3239 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3240 Diags.Report(diag::err_drv_incompatible_omp_arch) 3241 << A->getValue(i) << T.str(); 3242 else 3243 Opts.OMPTargetTriples.push_back(TT); 3244 } 3245 } 3246 3247 // Get OpenMP host file path if any and report if a non existent file is 3248 // found 3249 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3250 Opts.OMPHostIRFile = A->getValue(); 3251 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3252 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3253 << Opts.OMPHostIRFile; 3254 } 3255 3256 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3257 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3258 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3259 3260 // Set CUDA support for parallel execution of target regions for OpenMP target 3261 // NVPTX/AMDGCN if specified in options. 3262 Opts.OpenMPCUDATargetParallel = 3263 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3264 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3265 3266 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3267 Opts.OpenMPCUDAForceFullRuntime = 3268 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3269 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3270 3271 // Record whether the __DEPRECATED define was requested. 3272 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3273 OPT_fno_deprecated_macro, 3274 Opts.Deprecated); 3275 3276 // FIXME: Eliminate this dependency. 3277 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3278 OptSize = getOptimizationLevelSize(Args); 3279 Opts.Optimize = Opt != 0; 3280 Opts.OptimizeSize = OptSize != 0; 3281 3282 // This is the __NO_INLINE__ define, which just depends on things like the 3283 // optimization level and -fno-inline, not actually whether the backend has 3284 // inlining enabled. 3285 Opts.NoInlineDefine = !Opts.Optimize; 3286 if (Arg *InlineArg = Args.getLastArg( 3287 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3288 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3289 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3290 Opts.NoInlineDefine = true; 3291 3292 Opts.FastMath = 3293 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_fast_relaxed_math); 3294 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3295 Args.hasArg(OPT_ffast_math) || 3296 Args.hasArg(OPT_cl_finite_math_only) || 3297 Args.hasArg(OPT_cl_fast_relaxed_math); 3298 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3299 Args.hasArg(OPT_ffast_math) || 3300 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3301 Args.hasArg(OPT_cl_fast_relaxed_math); 3302 Opts.AllowFPReassoc = Args.hasArg(OPT_mreassociate) || 3303 Args.hasArg(OPT_menable_unsafe_fp_math) || 3304 Args.hasArg(OPT_ffast_math) || 3305 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3306 Args.hasArg(OPT_cl_fast_relaxed_math); 3307 Opts.NoHonorNaNs = 3308 Args.hasArg(OPT_menable_no_nans) || Args.hasArg(OPT_ffinite_math_only) || 3309 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_finite_math_only) || 3310 Args.hasArg(OPT_cl_fast_relaxed_math); 3311 Opts.NoHonorInfs = Args.hasArg(OPT_menable_no_infinities) || 3312 Args.hasArg(OPT_ffinite_math_only) || 3313 Args.hasArg(OPT_ffast_math) || 3314 Args.hasArg(OPT_cl_finite_math_only) || 3315 Args.hasArg(OPT_cl_fast_relaxed_math); 3316 Opts.NoSignedZero = Args.hasArg(OPT_fno_signed_zeros) || 3317 Args.hasArg(OPT_menable_unsafe_fp_math) || 3318 Args.hasArg(OPT_ffast_math) || 3319 Args.hasArg(OPT_cl_no_signed_zeros) || 3320 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3321 Args.hasArg(OPT_cl_fast_relaxed_math); 3322 Opts.AllowRecip = Args.hasArg(OPT_freciprocal_math) || 3323 Args.hasArg(OPT_menable_unsafe_fp_math) || 3324 Args.hasArg(OPT_ffast_math) || 3325 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3326 Args.hasArg(OPT_cl_fast_relaxed_math); 3327 // Currently there's no clang option to enable this individually 3328 Opts.ApproxFunc = Args.hasArg(OPT_menable_unsafe_fp_math) || 3329 Args.hasArg(OPT_ffast_math) || 3330 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3331 Args.hasArg(OPT_cl_fast_relaxed_math); 3332 3333 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3334 StringRef Val = A->getValue(); 3335 if (Val == "fast") 3336 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3337 else if (Val == "on") 3338 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3339 else if (Val == "off") 3340 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3341 else 3342 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3343 } 3344 3345 if (Args.hasArg(OPT_fexperimental_strict_floating_point)) 3346 Opts.ExpStrictFP = true; 3347 3348 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3349 if (Args.hasArg(OPT_frounding_math)) { 3350 FPRM = llvm::RoundingMode::Dynamic; 3351 } 3352 Opts.setFPRoundingMode(FPRM); 3353 3354 if (Args.hasArg(OPT_ftrapping_math)) { 3355 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3356 } 3357 3358 if (Args.hasArg(OPT_fno_trapping_math)) { 3359 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3360 } 3361 3362 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3363 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3364 StringRef Val = A->getValue(); 3365 if (Val.equals("ignore")) 3366 FPEB = LangOptions::FPE_Ignore; 3367 else if (Val.equals("maytrap")) 3368 FPEB = LangOptions::FPE_MayTrap; 3369 else if (Val.equals("strict")) 3370 FPEB = LangOptions::FPE_Strict; 3371 else 3372 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3373 } 3374 Opts.setFPExceptionMode(FPEB); 3375 3376 Opts.RetainCommentsFromSystemHeaders = 3377 Args.hasArg(OPT_fretain_comments_from_system_headers); 3378 3379 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3380 switch (SSP) { 3381 default: 3382 Diags.Report(diag::err_drv_invalid_value) 3383 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3384 break; 3385 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3386 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3387 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3388 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3389 } 3390 3391 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3392 StringRef Val = A->getValue(); 3393 if (Val == "uninitialized") 3394 Opts.setTrivialAutoVarInit( 3395 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3396 else if (Val == "zero") 3397 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3398 else if (Val == "pattern") 3399 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3400 else 3401 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3402 } 3403 3404 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init_stop_after)) { 3405 int Val = std::stoi(A->getValue()); 3406 Opts.TrivialAutoVarInitStopAfter = Val; 3407 } 3408 3409 // Parse -fsanitize= arguments. 3410 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3411 Diags, Opts.Sanitize); 3412 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3413 Opts.SanitizeAddressFieldPadding = 3414 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3415 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3416 std::vector<std::string> systemBlacklists = 3417 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3418 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3419 systemBlacklists.begin(), 3420 systemBlacklists.end()); 3421 3422 // -fxray-instrument 3423 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3424 Opts.XRayAlwaysEmitCustomEvents = 3425 Args.hasArg(OPT_fxray_always_emit_customevents); 3426 Opts.XRayAlwaysEmitTypedEvents = 3427 Args.hasArg(OPT_fxray_always_emit_typedevents); 3428 3429 // -fxray-{always,never}-instrument= filenames. 3430 Opts.XRayAlwaysInstrumentFiles = 3431 Args.getAllArgValues(OPT_fxray_always_instrument); 3432 Opts.XRayNeverInstrumentFiles = 3433 Args.getAllArgValues(OPT_fxray_never_instrument); 3434 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3435 3436 // -fforce-emit-vtables 3437 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3438 3439 // -fallow-editor-placeholders 3440 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3441 3442 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3443 3444 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3445 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3446 3447 StringRef Ver = A->getValue(); 3448 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3449 unsigned Major, Minor = 0; 3450 3451 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3452 // y or y.0 (4 <= y <= current version). 3453 if (!VerParts.first.startswith("0") && 3454 !VerParts.first.getAsInteger(10, Major) && 3455 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3456 (Major == 3 ? VerParts.second.size() == 1 && 3457 !VerParts.second.getAsInteger(10, Minor) 3458 : VerParts.first.size() == Ver.size() || 3459 VerParts.second == "0")) { 3460 // Got a valid version number. 3461 if (Major == 3 && Minor <= 8) 3462 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3463 else if (Major <= 4) 3464 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3465 else if (Major <= 6) 3466 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3467 else if (Major <= 7) 3468 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3469 else if (Major <= 9) 3470 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3471 } else if (Ver != "latest") { 3472 Diags.Report(diag::err_drv_invalid_value) 3473 << A->getAsString(Args) << A->getValue(); 3474 } 3475 } 3476 3477 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3478 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3479 Opts.PCHInstantiateTemplates = Args.hasArg(OPT_fpch_instantiate_templates); 3480 3481 Opts.MatrixTypes = Args.hasArg(OPT_fenable_matrix); 3482 3483 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3484 3485 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3486 StringRef SignScope = A->getValue(); 3487 3488 if (SignScope.equals_lower("none")) 3489 Opts.setSignReturnAddressScope( 3490 LangOptions::SignReturnAddressScopeKind::None); 3491 else if (SignScope.equals_lower("all")) 3492 Opts.setSignReturnAddressScope( 3493 LangOptions::SignReturnAddressScopeKind::All); 3494 else if (SignScope.equals_lower("non-leaf")) 3495 Opts.setSignReturnAddressScope( 3496 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3497 else 3498 Diags.Report(diag::err_drv_invalid_value) 3499 << A->getAsString(Args) << SignScope; 3500 3501 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3502 StringRef SignKey = A->getValue(); 3503 if (!SignScope.empty() && !SignKey.empty()) { 3504 if (SignKey.equals_lower("a_key")) 3505 Opts.setSignReturnAddressKey( 3506 LangOptions::SignReturnAddressKeyKind::AKey); 3507 else if (SignKey.equals_lower("b_key")) 3508 Opts.setSignReturnAddressKey( 3509 LangOptions::SignReturnAddressKeyKind::BKey); 3510 else 3511 Diags.Report(diag::err_drv_invalid_value) 3512 << A->getAsString(Args) << SignKey; 3513 } 3514 } 3515 } 3516 3517 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3518 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 3519 3520 Opts.CompatibilityQualifiedIdBlockParamTypeChecking = 3521 Args.hasArg(OPT_fcompatibility_qualified_id_block_param_type_checking); 3522 3523 Opts.RelativeCXXABIVTables = 3524 Args.hasFlag(OPT_fexperimental_relative_cxx_abi_vtables, 3525 OPT_fno_experimental_relative_cxx_abi_vtables, 3526 /*default=*/false); 3527 } 3528 3529 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3530 switch (Action) { 3531 case frontend::ASTDeclList: 3532 case frontend::ASTDump: 3533 case frontend::ASTPrint: 3534 case frontend::ASTView: 3535 case frontend::EmitAssembly: 3536 case frontend::EmitBC: 3537 case frontend::EmitHTML: 3538 case frontend::EmitLLVM: 3539 case frontend::EmitLLVMOnly: 3540 case frontend::EmitCodeGenOnly: 3541 case frontend::EmitObj: 3542 case frontend::FixIt: 3543 case frontend::GenerateModule: 3544 case frontend::GenerateModuleInterface: 3545 case frontend::GenerateHeaderModule: 3546 case frontend::GeneratePCH: 3547 case frontend::GenerateInterfaceStubs: 3548 case frontend::ParseSyntaxOnly: 3549 case frontend::ModuleFileInfo: 3550 case frontend::VerifyPCH: 3551 case frontend::PluginAction: 3552 case frontend::RewriteObjC: 3553 case frontend::RewriteTest: 3554 case frontend::RunAnalysis: 3555 case frontend::TemplightDump: 3556 case frontend::MigrateSource: 3557 return false; 3558 3559 case frontend::DumpCompilerOptions: 3560 case frontend::DumpRawTokens: 3561 case frontend::DumpTokens: 3562 case frontend::InitOnly: 3563 case frontend::PrintPreamble: 3564 case frontend::PrintPreprocessedInput: 3565 case frontend::RewriteMacros: 3566 case frontend::RunPreprocessorOnly: 3567 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3568 return true; 3569 } 3570 llvm_unreachable("invalid frontend action"); 3571 } 3572 3573 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3574 DiagnosticsEngine &Diags, 3575 frontend::ActionKind Action) { 3576 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3577 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3578 Args.hasArg(OPT_pch_through_hdrstop_use); 3579 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3580 Opts.PCHThroughHeader = 3581 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3582 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3583 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3584 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3585 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3586 3587 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3588 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3589 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3590 3591 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3592 auto Split = StringRef(A).split('='); 3593 Opts.MacroPrefixMap.insert( 3594 {std::string(Split.first), std::string(Split.second)}); 3595 } 3596 3597 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3598 StringRef Value(A->getValue()); 3599 size_t Comma = Value.find(','); 3600 unsigned Bytes = 0; 3601 unsigned EndOfLine = 0; 3602 3603 if (Comma == StringRef::npos || 3604 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3605 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3606 Diags.Report(diag::err_drv_preamble_format); 3607 else { 3608 Opts.PrecompiledPreambleBytes.first = Bytes; 3609 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3610 } 3611 } 3612 3613 // Add the __CET__ macro if a CFProtection option is set. 3614 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3615 StringRef Name = A->getValue(); 3616 if (Name == "branch") 3617 Opts.addMacroDef("__CET__=1"); 3618 else if (Name == "return") 3619 Opts.addMacroDef("__CET__=2"); 3620 else if (Name == "full") 3621 Opts.addMacroDef("__CET__=3"); 3622 } 3623 3624 // Add macros from the command line. 3625 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3626 if (A->getOption().matches(OPT_D)) 3627 Opts.addMacroDef(A->getValue()); 3628 else 3629 Opts.addMacroUndef(A->getValue()); 3630 } 3631 3632 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3633 3634 // Add the ordered list of -includes. 3635 for (const auto *A : Args.filtered(OPT_include)) 3636 Opts.Includes.emplace_back(A->getValue()); 3637 3638 for (const auto *A : Args.filtered(OPT_chain_include)) 3639 Opts.ChainedIncludes.emplace_back(A->getValue()); 3640 3641 for (const auto *A : Args.filtered(OPT_remap_file)) { 3642 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3643 3644 if (Split.second.empty()) { 3645 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3646 continue; 3647 } 3648 3649 Opts.addRemappedFile(Split.first, Split.second); 3650 } 3651 3652 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3653 StringRef Name = A->getValue(); 3654 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3655 .Case("libc++", ARCXX_libcxx) 3656 .Case("libstdc++", ARCXX_libstdcxx) 3657 .Case("none", ARCXX_nolib) 3658 .Default(~0U); 3659 if (Library == ~0U) 3660 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3661 else 3662 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3663 } 3664 3665 // Always avoid lexing editor placeholders when we're just running the 3666 // preprocessor as we never want to emit the 3667 // "editor placeholder in source file" error in PP only mode. 3668 if (isStrictlyPreprocessorAction(Action)) 3669 Opts.LexEditorPlaceholders = false; 3670 3671 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3672 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3673 } 3674 3675 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3676 ArgList &Args, 3677 frontend::ActionKind Action) { 3678 if (isStrictlyPreprocessorAction(Action)) 3679 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3680 else 3681 Opts.ShowCPP = 0; 3682 3683 Opts.ShowComments = Args.hasArg(OPT_C); 3684 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3685 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3686 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3687 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3688 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3689 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3690 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3691 } 3692 3693 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3694 DiagnosticsEngine &Diags) { 3695 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3696 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3697 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3698 StringRef Value = A->getValue(); 3699 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3700 .Case("default", llvm::EABI::Default) 3701 .Case("4", llvm::EABI::EABI4) 3702 .Case("5", llvm::EABI::EABI5) 3703 .Case("gnu", llvm::EABI::GNU) 3704 .Default(llvm::EABI::Unknown); 3705 if (EABIVersion == llvm::EABI::Unknown) 3706 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3707 << Value; 3708 else 3709 Opts.EABIVersion = EABIVersion; 3710 } 3711 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3712 Opts.TuneCPU = std::string(Args.getLastArgValue(OPT_tune_cpu)); 3713 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3714 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3715 Opts.LinkerVersion = 3716 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3717 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3718 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3719 Opts.NVPTXUseShortPointers = Args.hasFlag( 3720 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3721 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3722 llvm::VersionTuple Version; 3723 if (Version.tryParse(A->getValue())) 3724 Diags.Report(diag::err_drv_invalid_value) 3725 << A->getAsString(Args) << A->getValue(); 3726 else 3727 Opts.SDKVersion = Version; 3728 } 3729 } 3730 3731 bool CompilerInvocation::parseSimpleArgs(const ArgList &Args, 3732 DiagnosticsEngine &Diags) { 3733 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 3734 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 3735 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 3736 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 3737 this->KEYPATH = Args.hasArg(OPT_##ID) && IS_POSITIVE; 3738 3739 #define OPTION_WITH_MARSHALLING_STRING( \ 3740 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3741 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3742 TYPE, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 3743 { \ 3744 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, Args, Diags)) \ 3745 this->KEYPATH = static_cast<TYPE>(*MaybeValue); \ 3746 else \ 3747 this->KEYPATH = DEFAULT_VALUE; \ 3748 } 3749 3750 #include "clang/Driver/Options.inc" 3751 #undef OPTION_WITH_MARSHALLING_STRING 3752 #undef OPTION_WITH_MARSHALLING_FLAG 3753 return true; 3754 } 3755 3756 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3757 ArrayRef<const char *> CommandLineArgs, 3758 DiagnosticsEngine &Diags, 3759 const char *Argv0) { 3760 bool Success = true; 3761 3762 // Parse the arguments. 3763 const OptTable &Opts = getDriverOptTable(); 3764 const unsigned IncludedFlagsBitmask = options::CC1Option; 3765 unsigned MissingArgIndex, MissingArgCount; 3766 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3767 MissingArgCount, IncludedFlagsBitmask); 3768 LangOptions &LangOpts = *Res.getLangOpts(); 3769 3770 // Check for missing argument error. 3771 if (MissingArgCount) { 3772 Diags.Report(diag::err_drv_missing_argument) 3773 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3774 Success = false; 3775 } 3776 3777 // Issue errors on unknown arguments. 3778 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3779 auto ArgString = A->getAsString(Args); 3780 std::string Nearest; 3781 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3782 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3783 else 3784 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3785 << ArgString << Nearest; 3786 Success = false; 3787 } 3788 3789 Success &= Res.parseSimpleArgs(Args, Diags); 3790 3791 llvm::sys::Process::UseANSIEscapeCodes( 3792 Res.DiagnosticOpts->UseANSIEscapeCodes); 3793 3794 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3795 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3796 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3797 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3798 Res.getDependencyOutputOpts().Targets.empty()) { 3799 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3800 Success = false; 3801 } 3802 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3803 /*DefaultDiagColor=*/false); 3804 ParseCommentArgs(LangOpts.CommentOpts, Args); 3805 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3806 // FIXME: We shouldn't have to pass the DashX option around here 3807 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3808 LangOpts.IsHeaderFile); 3809 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3810 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3811 Res.getTargetOpts(), Res.getFrontendOpts()); 3812 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3813 Res.getFileSystemOpts().WorkingDir); 3814 llvm::Triple T(Res.getTargetOpts().Triple); 3815 if (DashX.getFormat() == InputKind::Precompiled || 3816 DashX.getLanguage() == Language::LLVM_IR) { 3817 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3818 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3819 // what the input type is. 3820 if (Args.hasArg(OPT_fobjc_arc)) 3821 LangOpts.ObjCAutoRefCount = 1; 3822 // PIClevel and PIELevel are needed during code generation and this should be 3823 // set regardless of the input type. 3824 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3825 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3826 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3827 Diags, LangOpts.Sanitize); 3828 } else { 3829 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3830 // FIXME: Should we really be calling this for an Language::Asm input? 3831 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3832 Res.getPreprocessorOpts(), Diags); 3833 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3834 LangOpts.ObjCExceptions = 1; 3835 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3836 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3837 // preprocessed input as we don't expect it to be used with -std=libc++ 3838 // anyway. 3839 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3840 } 3841 } 3842 3843 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3844 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3845 3846 LangOpts.FunctionAlignment = 3847 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3848 3849 if (LangOpts.CUDA) { 3850 // During CUDA device-side compilation, the aux triple is the 3851 // triple used for host compilation. 3852 if (LangOpts.CUDAIsDevice) 3853 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3854 } 3855 3856 // Set the triple of the host for OpenMP device compile. 3857 if (LangOpts.OpenMPIsDevice) 3858 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3859 3860 // FIXME: Override value name discarding when asan or msan is used because the 3861 // backend passes depend on the name of the alloca in order to print out 3862 // names. 3863 Res.getCodeGenOpts().DiscardValueNames &= 3864 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3865 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3866 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3867 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3868 3869 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3870 Res.getFrontendOpts().ProgramAction); 3871 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3872 Res.getFrontendOpts().ProgramAction); 3873 3874 // Turn on -Wspir-compat for SPIR target. 3875 if (T.isSPIR()) 3876 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3877 3878 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3879 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3880 !Res.getLangOpts()->Sanitize.empty()) { 3881 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3882 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3883 } 3884 3885 // Store the command-line for using in the CodeView backend. 3886 Res.getCodeGenOpts().Argv0 = Argv0; 3887 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 3888 3889 return Success; 3890 } 3891 3892 std::string CompilerInvocation::getModuleHash() const { 3893 // Note: For QoI reasons, the things we use as a hash here should all be 3894 // dumped via the -module-info flag. 3895 using llvm::hash_code; 3896 using llvm::hash_value; 3897 using llvm::hash_combine; 3898 using llvm::hash_combine_range; 3899 3900 // Start the signature with the compiler version. 3901 // FIXME: We'd rather use something more cryptographically sound than 3902 // CityHash, but this will do for now. 3903 hash_code code = hash_value(getClangFullRepositoryVersion()); 3904 3905 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3906 // and getClangFullRepositoryVersion() doesn't include git revision. 3907 code = hash_combine(code, serialization::VERSION_MAJOR, 3908 serialization::VERSION_MINOR); 3909 3910 // Extend the signature with the language options 3911 #define LANGOPT(Name, Bits, Default, Description) \ 3912 code = hash_combine(code, LangOpts->Name); 3913 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3914 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3915 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3916 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3917 #include "clang/Basic/LangOptions.def" 3918 3919 for (StringRef Feature : LangOpts->ModuleFeatures) 3920 code = hash_combine(code, Feature); 3921 3922 code = hash_combine(code, LangOpts->ObjCRuntime); 3923 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 3924 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 3925 3926 // Extend the signature with the target options. 3927 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3928 TargetOpts->TuneCPU, TargetOpts->ABI); 3929 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3930 code = hash_combine(code, FeatureAsWritten); 3931 3932 // Extend the signature with preprocessor options. 3933 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3934 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3935 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3936 3937 for (const auto &I : getPreprocessorOpts().Macros) { 3938 // If we're supposed to ignore this macro for the purposes of modules, 3939 // don't put it into the hash. 3940 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3941 // Check whether we're ignoring this macro. 3942 StringRef MacroDef = I.first; 3943 if (hsOpts.ModulesIgnoreMacros.count( 3944 llvm::CachedHashString(MacroDef.split('=').first))) 3945 continue; 3946 } 3947 3948 code = hash_combine(code, I.first, I.second); 3949 } 3950 3951 // Extend the signature with the sysroot and other header search options. 3952 code = hash_combine(code, hsOpts.Sysroot, 3953 hsOpts.ModuleFormat, 3954 hsOpts.UseDebugInfo, 3955 hsOpts.UseBuiltinIncludes, 3956 hsOpts.UseStandardSystemIncludes, 3957 hsOpts.UseStandardCXXIncludes, 3958 hsOpts.UseLibcxx, 3959 hsOpts.ModulesValidateDiagnosticOptions); 3960 code = hash_combine(code, hsOpts.ResourceDir); 3961 3962 if (hsOpts.ModulesStrictContextHash) { 3963 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3964 hsOpts.SystemHeaderPrefixes.end()); 3965 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3966 hsOpts.UserEntries.end()); 3967 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3968 hsOpts.UserEntries.size(), UEC); 3969 3970 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3971 #define DIAGOPT(Name, Bits, Default) \ 3972 code = hash_combine(code, diagOpts.Name); 3973 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3974 code = hash_combine(code, diagOpts.get##Name()); 3975 #include "clang/Basic/DiagnosticOptions.def" 3976 #undef DIAGOPT 3977 #undef ENUM_DIAGOPT 3978 } 3979 3980 // Extend the signature with the user build path. 3981 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3982 3983 // Extend the signature with the module file extensions. 3984 const FrontendOptions &frontendOpts = getFrontendOpts(); 3985 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3986 code = ext->hashExtension(code); 3987 } 3988 3989 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3990 // affects the debug info in the PCM. 3991 if (getCodeGenOpts().DebugTypeExtRefs) 3992 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3993 code = hash_combine(code, KeyValue.first, KeyValue.second); 3994 3995 // Extend the signature with the enabled sanitizers, if at least one is 3996 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3997 SanitizerSet SanHash = LangOpts->Sanitize; 3998 SanHash.clear(getPPTransparentSanitizers()); 3999 if (!SanHash.empty()) 4000 code = hash_combine(code, SanHash.Mask); 4001 4002 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 4003 } 4004 4005 void CompilerInvocation::generateCC1CommandLine( 4006 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4007 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 4008 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 4009 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 4010 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 4011 if ((FLAGS) & options::CC1Option && \ 4012 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) \ 4013 Args.push_back(SPELLING); 4014 4015 #define OPTION_WITH_MARSHALLING_STRING( \ 4016 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4017 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4018 NORMALIZER_RET_TY, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 4019 if (((FLAGS) & options::CC1Option) && \ 4020 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) { \ 4021 if (Option::KIND##Class == Option::SeparateClass) { \ 4022 Args.push_back(SPELLING); \ 4023 Args.push_back(DENORMALIZER(SA, TABLE_INDEX, this->KEYPATH)); \ 4024 } \ 4025 } 4026 4027 #include "clang/Driver/Options.inc" 4028 #undef OPTION_WITH_MARSHALLING_STRING 4029 #undef OPTION_WITH_MARSHALLING_FLAG 4030 } 4031 4032 namespace clang { 4033 4034 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4035 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4036 DiagnosticsEngine &Diags) { 4037 return createVFSFromCompilerInvocation(CI, Diags, 4038 llvm::vfs::getRealFileSystem()); 4039 } 4040 4041 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 4042 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4043 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4044 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4045 return BaseFS; 4046 4047 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4048 // earlier vfs files are on the bottom 4049 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4050 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4051 Result->getBufferForFile(File); 4052 if (!Buffer) { 4053 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4054 continue; 4055 } 4056 4057 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4058 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4059 /*DiagContext*/ nullptr, Result); 4060 if (!FS) { 4061 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4062 continue; 4063 } 4064 4065 Result = FS; 4066 } 4067 return Result; 4068 } 4069 4070 } // namespace clang 4071