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.EmitGcovNotes = Args.hasArg(OPT_ftest_coverage); 1056 Opts.EmitGcovArcs = Args.hasArg(OPT_fprofile_arcs); 1057 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1058 Opts.CoverageDataFile = 1059 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1060 Opts.CoverageNotesFile = 1061 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1062 Opts.ProfileFilterFiles = 1063 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1064 Opts.ProfileExcludeFiles = 1065 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1066 if (Args.hasArg(OPT_coverage_version_EQ)) { 1067 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1068 if (CoverageVersion.size() != 4) { 1069 Diags.Report(diag::err_drv_invalid_value) 1070 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1071 << CoverageVersion; 1072 } else { 1073 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1074 } 1075 } 1076 } 1077 // Handle -fembed-bitcode option. 1078 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1079 StringRef Name = A->getValue(); 1080 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1081 .Case("off", CodeGenOptions::Embed_Off) 1082 .Case("all", CodeGenOptions::Embed_All) 1083 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1084 .Case("marker", CodeGenOptions::Embed_Marker) 1085 .Default(~0U); 1086 if (Model == ~0U) { 1087 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1088 Success = false; 1089 } else 1090 Opts.setEmbedBitcode( 1091 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1092 } 1093 // FIXME: For backend options that are not yet recorded as function 1094 // attributes in the IR, keep track of them so we can embed them in a 1095 // separate data section and use them when building the bitcode. 1096 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1097 for (const auto &A : Args) { 1098 // Do not encode output and input. 1099 if (A->getOption().getID() == options::OPT_o || 1100 A->getOption().getID() == options::OPT_INPUT || 1101 A->getOption().getID() == options::OPT_x || 1102 A->getOption().getID() == options::OPT_fembed_bitcode || 1103 A->getOption().matches(options::OPT_W_Group)) 1104 continue; 1105 ArgStringList ASL; 1106 A->render(Args, ASL); 1107 for (const auto &arg : ASL) { 1108 StringRef ArgStr(arg); 1109 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1110 // using \00 to separate each commandline options. 1111 Opts.CmdArgs.push_back('\0'); 1112 } 1113 } 1114 } 1115 1116 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1117 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1118 Opts.InstrumentFunctionsAfterInlining = 1119 Args.hasArg(OPT_finstrument_functions_after_inlining); 1120 Opts.InstrumentFunctionEntryBare = 1121 Args.hasArg(OPT_finstrument_function_entry_bare); 1122 1123 Opts.XRayInstrumentFunctions = 1124 Args.hasArg(OPT_fxray_instrument); 1125 Opts.XRayAlwaysEmitCustomEvents = 1126 Args.hasArg(OPT_fxray_always_emit_customevents); 1127 Opts.XRayAlwaysEmitTypedEvents = 1128 Args.hasArg(OPT_fxray_always_emit_typedevents); 1129 Opts.XRayInstructionThreshold = 1130 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1131 Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops); 1132 Opts.XRayOmitFunctionIndex = Args.hasArg(OPT_fno_xray_function_index); 1133 Opts.XRayTotalFunctionGroups = 1134 getLastArgIntValue(Args, OPT_fxray_function_groups, 1, Diags); 1135 Opts.XRaySelectedFunctionGroup = 1136 getLastArgIntValue(Args, OPT_fxray_selected_function_group, 0, Diags); 1137 1138 auto XRayInstrBundles = 1139 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1140 if (XRayInstrBundles.empty()) 1141 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1142 else 1143 for (const auto &A : XRayInstrBundles) 1144 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1145 Diags, Opts.XRayInstrumentationBundle); 1146 1147 Opts.PatchableFunctionEntryCount = 1148 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1149 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1150 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1151 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1152 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1153 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1154 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1155 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1156 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1157 1158 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1159 StringRef Name = A->getValue(); 1160 if (Name == "full") { 1161 Opts.CFProtectionReturn = 1; 1162 Opts.CFProtectionBranch = 1; 1163 } else if (Name == "return") 1164 Opts.CFProtectionReturn = 1; 1165 else if (Name == "branch") 1166 Opts.CFProtectionBranch = 1; 1167 else if (Name != "none") { 1168 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1169 Success = false; 1170 } 1171 } 1172 1173 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections_EQ)) { 1174 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1175 .Case("none", llvm::DebugCompressionType::None) 1176 .Case("zlib", llvm::DebugCompressionType::Z) 1177 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1178 .Default(llvm::DebugCompressionType::None); 1179 Opts.setCompressDebugSections(DCT); 1180 } 1181 1182 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1183 Opts.DebugCompilationDir = 1184 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1185 for (auto *A : 1186 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1187 CodeGenOptions::BitcodeFileToLink F; 1188 F.Filename = A->getValue(); 1189 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1190 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1191 // When linking CUDA bitcode, propagate function attributes so that 1192 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1193 F.PropagateAttrs = true; 1194 F.Internalize = true; 1195 } 1196 Opts.LinkBitcodeFiles.push_back(F); 1197 } 1198 Opts.SanitizeCoverageType = 1199 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1200 Opts.SanitizeCoverageIndirectCalls = 1201 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1202 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1203 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1204 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1205 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1206 Opts.SanitizeCoverage8bitCounters = 1207 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1208 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1209 Opts.SanitizeCoverageTracePCGuard = 1210 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1211 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1212 Opts.SanitizeCoverageInline8bitCounters = 1213 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1214 Opts.SanitizeCoverageInlineBoolFlag = 1215 Args.hasArg(OPT_fsanitize_coverage_inline_bool_flag); 1216 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1217 Opts.SanitizeCoverageStackDepth = 1218 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1219 Opts.SanitizeCoverageAllowlistFiles = 1220 Args.getAllArgValues(OPT_fsanitize_coverage_allowlist); 1221 Opts.SanitizeCoverageBlocklistFiles = 1222 Args.getAllArgValues(OPT_fsanitize_coverage_blocklist); 1223 Opts.SanitizeMemoryTrackOrigins = 1224 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1225 Opts.SanitizeMemoryUseAfterDtor = 1226 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1227 OPT_fno_sanitize_memory_use_after_dtor, 1228 false); 1229 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1230 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1231 Opts.SanitizeCfiICallGeneralizePointers = 1232 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1233 Opts.SanitizeCfiCanonicalJumpTables = 1234 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1235 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1236 if (Arg *A = Args.getLastArg( 1237 OPT_fsanitize_address_poison_custom_array_cookie, 1238 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1239 Opts.SanitizeAddressPoisonCustomArrayCookie = 1240 A->getOption().getID() == 1241 OPT_fsanitize_address_poison_custom_array_cookie; 1242 } 1243 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1244 OPT_fno_sanitize_address_use_after_scope)) { 1245 Opts.SanitizeAddressUseAfterScope = 1246 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1247 } 1248 Opts.SanitizeAddressGlobalsDeadStripping = 1249 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1250 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1251 OPT_fno_sanitize_address_use_odr_indicator)) { 1252 Opts.SanitizeAddressUseOdrIndicator = 1253 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1254 } 1255 Opts.SSPBufferSize = 1256 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1257 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1258 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1259 StringRef Val = A->getValue(); 1260 unsigned StackAlignment = Opts.StackAlignment; 1261 Val.getAsInteger(10, StackAlignment); 1262 Opts.StackAlignment = StackAlignment; 1263 } 1264 1265 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1266 StringRef Val = A->getValue(); 1267 unsigned StackProbeSize = Opts.StackProbeSize; 1268 Val.getAsInteger(0, StackProbeSize); 1269 Opts.StackProbeSize = StackProbeSize; 1270 } 1271 1272 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1273 1274 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1275 1276 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1277 StringRef Name = A->getValue(); 1278 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1279 .Case("legacy", CodeGenOptions::Legacy) 1280 .Case("non-legacy", CodeGenOptions::NonLegacy) 1281 .Case("mixed", CodeGenOptions::Mixed) 1282 .Default(~0U); 1283 if (Method == ~0U) { 1284 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1285 Success = false; 1286 } else { 1287 Opts.setObjCDispatchMethod( 1288 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1289 } 1290 } 1291 1292 1293 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1294 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1295 1296 if (Args.getLastArg(OPT_femulated_tls) || 1297 Args.getLastArg(OPT_fno_emulated_tls)) { 1298 Opts.ExplicitEmulatedTLS = true; 1299 Opts.EmulatedTLS = 1300 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1301 } 1302 1303 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1304 StringRef Name = A->getValue(); 1305 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1306 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1307 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1308 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1309 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1310 .Default(~0U); 1311 if (Model == ~0U) { 1312 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1313 Success = false; 1314 } else { 1315 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1316 } 1317 } 1318 1319 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1320 1321 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1322 StringRef Val = A->getValue(); 1323 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1324 if (!Opts.FPDenormalMode.isValid()) 1325 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1326 } 1327 1328 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1329 StringRef Val = A->getValue(); 1330 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1331 if (!Opts.FP32DenormalMode.isValid()) 1332 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1333 } 1334 1335 // X86_32 has -fppc-struct-return and -freg-struct-return. 1336 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1337 if (Arg *A = 1338 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1339 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1340 // TODO: We might want to consider enabling these options on AIX in the 1341 // future. 1342 if (T.isOSAIX()) 1343 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1344 << A->getSpelling() << T.str(); 1345 1346 const Option &O = A->getOption(); 1347 if (O.matches(OPT_fpcc_struct_return) || 1348 O.matches(OPT_maix_struct_return)) { 1349 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1350 } else { 1351 assert(O.matches(OPT_freg_struct_return) || 1352 O.matches(OPT_msvr4_struct_return)); 1353 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1354 } 1355 } 1356 1357 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 1358 !Args.hasArg(OPT_fvisibility))) 1359 Opts.IgnoreXCOFFVisibility = 1; 1360 1361 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1362 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1363 bool NeedLocTracking = false; 1364 1365 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1366 if (!Opts.OptRecordFile.empty()) 1367 NeedLocTracking = true; 1368 1369 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1370 Opts.OptRecordPasses = A->getValue(); 1371 NeedLocTracking = true; 1372 } 1373 1374 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1375 Opts.OptRecordFormat = A->getValue(); 1376 NeedLocTracking = true; 1377 } 1378 1379 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1380 Opts.OptimizationRemarkPattern = 1381 GenerateOptimizationRemarkRegex(Diags, Args, A); 1382 NeedLocTracking = true; 1383 } 1384 1385 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1386 Opts.OptimizationRemarkMissedPattern = 1387 GenerateOptimizationRemarkRegex(Diags, Args, A); 1388 NeedLocTracking = true; 1389 } 1390 1391 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1392 Opts.OptimizationRemarkAnalysisPattern = 1393 GenerateOptimizationRemarkRegex(Diags, Args, A); 1394 NeedLocTracking = true; 1395 } 1396 1397 Opts.DiagnosticsWithHotness = 1398 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1399 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1400 bool UsingProfile = UsingSampleProfile || 1401 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1402 1403 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1404 // An IR file will contain PGO as metadata 1405 IK.getLanguage() != Language::LLVM_IR) 1406 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1407 << "-fdiagnostics-show-hotness"; 1408 1409 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1410 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1411 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1412 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1413 << "-fdiagnostics-hotness-threshold="; 1414 1415 // If the user requested to use a sample profile for PGO, then the 1416 // backend will need to track source location information so the profile 1417 // can be incorporated into the IR. 1418 if (UsingSampleProfile) 1419 NeedLocTracking = true; 1420 1421 // If the user requested a flag that requires source locations available in 1422 // the backend, make sure that the backend tracks source location information. 1423 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1424 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1425 1426 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1427 1428 // Parse -fsanitize-recover= arguments. 1429 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1430 parseSanitizerKinds("-fsanitize-recover=", 1431 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1432 Opts.SanitizeRecover); 1433 parseSanitizerKinds("-fsanitize-trap=", 1434 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1435 Opts.SanitizeTrap); 1436 1437 Opts.CudaGpuBinaryFileName = 1438 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1439 1440 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1441 1442 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1443 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1444 1445 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1446 1447 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1448 1449 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1450 1451 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1452 1453 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1454 1455 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1456 1457 Opts.SymbolPartition = 1458 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1459 1460 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1461 Opts.AAPCSBitfieldWidth = 1462 Args.hasFlag(OPT_AAPCSBitfieldWidth, OPT_ForceNoAAPCSBitfieldWidth, true); 1463 1464 Opts.PassByValueIsNoAlias = Args.hasArg(OPT_fpass_by_value_is_noalias); 1465 1466 return Success; 1467 } 1468 1469 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1470 ArgList &Args) { 1471 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1472 Opts.Targets = Args.getAllArgValues(OPT_MT); 1473 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1474 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1475 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1476 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1477 Opts.HeaderIncludeOutputFile = 1478 std::string(Args.getLastArgValue(OPT_header_include_file)); 1479 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1480 if (Args.hasArg(OPT_show_includes)) { 1481 // Writing both /showIncludes and preprocessor output to stdout 1482 // would produce interleaved output, so use stderr for /showIncludes. 1483 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1484 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1485 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1486 else 1487 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1488 } else { 1489 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1490 } 1491 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1492 Opts.ModuleDependencyOutputDir = 1493 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1494 if (Args.hasArg(OPT_MV)) 1495 Opts.OutputFormat = DependencyOutputFormat::NMake; 1496 // Add sanitizer blacklists as extra dependencies. 1497 // They won't be discovered by the regular preprocessor, so 1498 // we let make / ninja to know about this implicit dependency. 1499 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1500 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1501 StringRef Val = A->getValue(); 1502 if (Val.find('=') == StringRef::npos) 1503 Opts.ExtraDeps.push_back(std::string(Val)); 1504 } 1505 if (Opts.IncludeSystemHeaders) { 1506 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1507 StringRef Val = A->getValue(); 1508 if (Val.find('=') == StringRef::npos) 1509 Opts.ExtraDeps.push_back(std::string(Val)); 1510 } 1511 } 1512 } 1513 1514 // Propagate the extra dependencies. 1515 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1516 Opts.ExtraDeps.push_back(A->getValue()); 1517 } 1518 1519 // Only the -fmodule-file=<file> form. 1520 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1521 StringRef Val = A->getValue(); 1522 if (Val.find('=') == StringRef::npos) 1523 Opts.ExtraDeps.push_back(std::string(Val)); 1524 } 1525 } 1526 1527 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1528 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1529 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1530 // Support both clang's -f[no-]color-diagnostics and gcc's 1531 // -f[no-]diagnostics-colors[=never|always|auto]. 1532 enum { 1533 Colors_On, 1534 Colors_Off, 1535 Colors_Auto 1536 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1537 for (auto *A : Args) { 1538 const Option &O = A->getOption(); 1539 if (O.matches(options::OPT_fcolor_diagnostics) || 1540 O.matches(options::OPT_fdiagnostics_color)) { 1541 ShowColors = Colors_On; 1542 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1543 O.matches(options::OPT_fno_diagnostics_color)) { 1544 ShowColors = Colors_Off; 1545 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1546 StringRef Value(A->getValue()); 1547 if (Value == "always") 1548 ShowColors = Colors_On; 1549 else if (Value == "never") 1550 ShowColors = Colors_Off; 1551 else if (Value == "auto") 1552 ShowColors = Colors_Auto; 1553 } 1554 } 1555 return ShowColors == Colors_On || 1556 (ShowColors == Colors_Auto && 1557 llvm::sys::Process::StandardErrHasColors()); 1558 } 1559 1560 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1561 DiagnosticsEngine *Diags) { 1562 bool Success = true; 1563 for (const auto &Prefix : VerifyPrefixes) { 1564 // Every prefix must start with a letter and contain only alphanumeric 1565 // characters, hyphens, and underscores. 1566 auto BadChar = llvm::find_if(Prefix, [](char C) { 1567 return !isAlphanumeric(C) && C != '-' && C != '_'; 1568 }); 1569 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1570 Success = false; 1571 if (Diags) { 1572 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1573 Diags->Report(diag::note_drv_verify_prefix_spelling); 1574 } 1575 } 1576 } 1577 return Success; 1578 } 1579 1580 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1581 DiagnosticsEngine *Diags, 1582 bool DefaultDiagColor) { 1583 bool Success = true; 1584 1585 Opts.DiagnosticLogFile = 1586 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1587 if (Arg *A = 1588 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1589 Opts.DiagnosticSerializationFile = A->getValue(); 1590 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1591 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1592 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1593 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1594 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1595 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1596 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1597 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1598 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1599 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1600 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1601 1602 // Default behavior is to not to show note include stacks. 1603 Opts.ShowNoteIncludeStack = false; 1604 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1605 OPT_fno_diagnostics_show_note_include_stack)) 1606 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1607 Opts.ShowNoteIncludeStack = true; 1608 1609 StringRef ShowOverloads = 1610 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1611 if (ShowOverloads == "best") 1612 Opts.setShowOverloads(Ovl_Best); 1613 else if (ShowOverloads == "all") 1614 Opts.setShowOverloads(Ovl_All); 1615 else { 1616 Success = false; 1617 if (Diags) 1618 Diags->Report(diag::err_drv_invalid_value) 1619 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1620 << ShowOverloads; 1621 } 1622 1623 StringRef ShowCategory = 1624 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1625 if (ShowCategory == "none") 1626 Opts.ShowCategories = 0; 1627 else if (ShowCategory == "id") 1628 Opts.ShowCategories = 1; 1629 else if (ShowCategory == "name") 1630 Opts.ShowCategories = 2; 1631 else { 1632 Success = false; 1633 if (Diags) 1634 Diags->Report(diag::err_drv_invalid_value) 1635 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1636 << ShowCategory; 1637 } 1638 1639 StringRef Format = 1640 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1641 if (Format == "clang") 1642 Opts.setFormat(DiagnosticOptions::Clang); 1643 else if (Format == "msvc") 1644 Opts.setFormat(DiagnosticOptions::MSVC); 1645 else if (Format == "msvc-fallback") { 1646 Opts.setFormat(DiagnosticOptions::MSVC); 1647 Opts.CLFallbackMode = true; 1648 } else if (Format == "vi") 1649 Opts.setFormat(DiagnosticOptions::Vi); 1650 else { 1651 Success = false; 1652 if (Diags) 1653 Diags->Report(diag::err_drv_invalid_value) 1654 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1655 << Format; 1656 } 1657 1658 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1659 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1660 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1661 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1662 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1663 if (Args.hasArg(OPT_verify)) 1664 Opts.VerifyPrefixes.push_back("expected"); 1665 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1666 // then sort it to prepare for fast lookup using std::binary_search. 1667 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1668 Opts.VerifyDiagnostics = false; 1669 Success = false; 1670 } 1671 else 1672 llvm::sort(Opts.VerifyPrefixes); 1673 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1674 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1675 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1676 Diags, DiagMask); 1677 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1678 DiagMask = DiagnosticLevelMask::All; 1679 Opts.setVerifyIgnoreUnexpected(DiagMask); 1680 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1681 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1682 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1683 Opts.MacroBacktraceLimit = 1684 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1685 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1686 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1687 Args, OPT_ftemplate_backtrace_limit, 1688 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1689 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1690 Args, OPT_fconstexpr_backtrace_limit, 1691 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1692 Opts.SpellCheckingLimit = getLastArgIntValue( 1693 Args, OPT_fspell_checking_limit, 1694 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1695 Opts.SnippetLineLimit = getLastArgIntValue( 1696 Args, OPT_fcaret_diagnostics_max_lines, 1697 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1698 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1699 DiagnosticOptions::DefaultTabStop, Diags); 1700 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1701 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1702 if (Diags) 1703 Diags->Report(diag::warn_ignoring_ftabstop_value) 1704 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1705 } 1706 Opts.MessageLength = 1707 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1708 1709 Opts.UndefPrefixes = Args.getAllArgValues(OPT_Wundef_prefix_EQ); 1710 1711 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1712 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1713 1714 return Success; 1715 } 1716 1717 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1718 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1719 } 1720 1721 /// Parse the argument to the -ftest-module-file-extension 1722 /// command-line argument. 1723 /// 1724 /// \returns true on error, false on success. 1725 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1726 std::string &BlockName, 1727 unsigned &MajorVersion, 1728 unsigned &MinorVersion, 1729 bool &Hashed, 1730 std::string &UserInfo) { 1731 SmallVector<StringRef, 5> Args; 1732 Arg.split(Args, ':', 5); 1733 if (Args.size() < 5) 1734 return true; 1735 1736 BlockName = std::string(Args[0]); 1737 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1738 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1739 if (Args[3].getAsInteger(2, Hashed)) return true; 1740 if (Args.size() > 4) 1741 UserInfo = std::string(Args[4]); 1742 return false; 1743 } 1744 1745 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1746 DiagnosticsEngine &Diags, 1747 bool &IsHeaderFile) { 1748 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1749 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1750 switch (A->getOption().getID()) { 1751 default: 1752 llvm_unreachable("Invalid option in group!"); 1753 case OPT_ast_list: 1754 Opts.ProgramAction = frontend::ASTDeclList; break; 1755 case OPT_ast_dump_all_EQ: 1756 case OPT_ast_dump_EQ: { 1757 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1758 .CaseLower("default", ADOF_Default) 1759 .CaseLower("json", ADOF_JSON) 1760 .Default(std::numeric_limits<unsigned>::max()); 1761 1762 if (Val != std::numeric_limits<unsigned>::max()) 1763 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1764 else { 1765 Diags.Report(diag::err_drv_invalid_value) 1766 << A->getAsString(Args) << A->getValue(); 1767 Opts.ASTDumpFormat = ADOF_Default; 1768 } 1769 LLVM_FALLTHROUGH; 1770 } 1771 case OPT_ast_dump: 1772 case OPT_ast_dump_all: 1773 case OPT_ast_dump_lookups: 1774 case OPT_ast_dump_decl_types: 1775 Opts.ProgramAction = frontend::ASTDump; break; 1776 case OPT_ast_print: 1777 Opts.ProgramAction = frontend::ASTPrint; break; 1778 case OPT_ast_view: 1779 Opts.ProgramAction = frontend::ASTView; break; 1780 case OPT_compiler_options_dump: 1781 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1782 case OPT_dump_raw_tokens: 1783 Opts.ProgramAction = frontend::DumpRawTokens; break; 1784 case OPT_dump_tokens: 1785 Opts.ProgramAction = frontend::DumpTokens; break; 1786 case OPT_S: 1787 Opts.ProgramAction = frontend::EmitAssembly; break; 1788 case OPT_emit_llvm_bc: 1789 Opts.ProgramAction = frontend::EmitBC; break; 1790 case OPT_emit_html: 1791 Opts.ProgramAction = frontend::EmitHTML; break; 1792 case OPT_emit_llvm: 1793 Opts.ProgramAction = frontend::EmitLLVM; break; 1794 case OPT_emit_llvm_only: 1795 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1796 case OPT_emit_codegen_only: 1797 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1798 case OPT_emit_obj: 1799 Opts.ProgramAction = frontend::EmitObj; break; 1800 case OPT_fixit_EQ: 1801 Opts.FixItSuffix = A->getValue(); 1802 LLVM_FALLTHROUGH; 1803 case OPT_fixit: 1804 Opts.ProgramAction = frontend::FixIt; break; 1805 case OPT_emit_module: 1806 Opts.ProgramAction = frontend::GenerateModule; break; 1807 case OPT_emit_module_interface: 1808 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1809 case OPT_emit_header_module: 1810 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1811 case OPT_emit_pch: 1812 Opts.ProgramAction = frontend::GeneratePCH; break; 1813 case OPT_emit_interface_stubs: { 1814 StringRef ArgStr = 1815 Args.hasArg(OPT_interface_stub_version_EQ) 1816 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1817 : "experimental-ifs-v2"; 1818 if (ArgStr == "experimental-yaml-elf-v1" || 1819 ArgStr == "experimental-ifs-v1" || 1820 ArgStr == "experimental-tapi-elf-v1") { 1821 std::string ErrorMessage = 1822 "Invalid interface stub format: " + ArgStr.str() + 1823 " is deprecated."; 1824 Diags.Report(diag::err_drv_invalid_value) 1825 << "Must specify a valid interface stub format type, ie: " 1826 "-interface-stub-version=experimental-ifs-v2" 1827 << ErrorMessage; 1828 } else if (!ArgStr.startswith("experimental-ifs-")) { 1829 std::string ErrorMessage = 1830 "Invalid interface stub format: " + ArgStr.str() + "."; 1831 Diags.Report(diag::err_drv_invalid_value) 1832 << "Must specify a valid interface stub format type, ie: " 1833 "-interface-stub-version=experimental-ifs-v2" 1834 << ErrorMessage; 1835 } else { 1836 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1837 } 1838 break; 1839 } 1840 case OPT_init_only: 1841 Opts.ProgramAction = frontend::InitOnly; break; 1842 case OPT_fsyntax_only: 1843 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1844 case OPT_module_file_info: 1845 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1846 case OPT_verify_pch: 1847 Opts.ProgramAction = frontend::VerifyPCH; break; 1848 case OPT_print_preamble: 1849 Opts.ProgramAction = frontend::PrintPreamble; break; 1850 case OPT_E: 1851 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1852 case OPT_templight_dump: 1853 Opts.ProgramAction = frontend::TemplightDump; break; 1854 case OPT_rewrite_macros: 1855 Opts.ProgramAction = frontend::RewriteMacros; break; 1856 case OPT_rewrite_objc: 1857 Opts.ProgramAction = frontend::RewriteObjC; break; 1858 case OPT_rewrite_test: 1859 Opts.ProgramAction = frontend::RewriteTest; break; 1860 case OPT_analyze: 1861 Opts.ProgramAction = frontend::RunAnalysis; break; 1862 case OPT_migrate: 1863 Opts.ProgramAction = frontend::MigrateSource; break; 1864 case OPT_Eonly: 1865 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1866 case OPT_print_dependency_directives_minimized_source: 1867 Opts.ProgramAction = 1868 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1869 break; 1870 } 1871 } 1872 1873 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1874 Opts.Plugins.emplace_back(A->getValue(0)); 1875 Opts.ProgramAction = frontend::PluginAction; 1876 Opts.ActionName = A->getValue(); 1877 } 1878 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1879 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1880 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1881 1882 for (const std::string &Arg : 1883 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1884 std::string BlockName; 1885 unsigned MajorVersion; 1886 unsigned MinorVersion; 1887 bool Hashed; 1888 std::string UserInfo; 1889 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1890 MinorVersion, Hashed, UserInfo)) { 1891 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1892 1893 continue; 1894 } 1895 1896 // Add the testing module file extension. 1897 Opts.ModuleFileExtensions.push_back( 1898 std::make_shared<TestModuleFileExtension>( 1899 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1900 } 1901 1902 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1903 Opts.CodeCompletionAt = 1904 ParsedSourceLocation::FromString(A->getValue()); 1905 if (Opts.CodeCompletionAt.FileName.empty()) 1906 Diags.Report(diag::err_drv_invalid_value) 1907 << A->getAsString(Args) << A->getValue(); 1908 } 1909 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1910 1911 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1912 Opts.Plugins = Args.getAllArgValues(OPT_load); 1913 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1914 Opts.ShowHelp = Args.hasArg(OPT_help); 1915 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1916 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1917 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1918 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1919 Opts.TimeTraceGranularity = getLastArgIntValue( 1920 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1921 Opts.ShowVersion = Args.hasArg(OPT_version); 1922 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1923 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1924 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1925 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1926 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1927 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1928 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1929 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1930 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1931 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1932 Opts.ASTDumpDeclTypes = Args.hasArg(OPT_ast_dump_decl_types); 1933 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1934 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1935 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1936 // Only the -fmodule-file=<file> form. 1937 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1938 StringRef Val = A->getValue(); 1939 if (Val.find('=') == StringRef::npos) 1940 Opts.ModuleFiles.push_back(std::string(Val)); 1941 } 1942 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1943 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1944 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1945 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1946 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 1947 1948 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1949 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1950 << "-emit-module"; 1951 1952 Opts.CodeCompleteOpts.IncludeMacros 1953 = Args.hasArg(OPT_code_completion_macros); 1954 Opts.CodeCompleteOpts.IncludeCodePatterns 1955 = Args.hasArg(OPT_code_completion_patterns); 1956 Opts.CodeCompleteOpts.IncludeGlobals 1957 = !Args.hasArg(OPT_no_code_completion_globals); 1958 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1959 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1960 Opts.CodeCompleteOpts.IncludeBriefComments 1961 = Args.hasArg(OPT_code_completion_brief_comments); 1962 Opts.CodeCompleteOpts.IncludeFixIts 1963 = Args.hasArg(OPT_code_completion_with_fixits); 1964 1965 Opts.OverrideRecordLayoutsFile = 1966 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1967 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1968 if (Args.hasArg(OPT_aux_target_cpu)) 1969 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1970 if (Args.hasArg(OPT_aux_target_feature)) 1971 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1972 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1973 1974 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1975 OPT_arcmt_modify, 1976 OPT_arcmt_migrate)) { 1977 switch (A->getOption().getID()) { 1978 default: 1979 llvm_unreachable("missed a case"); 1980 case OPT_arcmt_check: 1981 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1982 break; 1983 case OPT_arcmt_modify: 1984 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1985 break; 1986 case OPT_arcmt_migrate: 1987 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1988 break; 1989 } 1990 } 1991 Opts.MTMigrateDir = 1992 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1993 Opts.ARCMTMigrateReportOut = 1994 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1995 Opts.ARCMTMigrateEmitARCErrors 1996 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1997 1998 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1999 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 2000 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 2001 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 2002 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 2003 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 2004 if (Args.hasArg(OPT_objcmt_migrate_property)) 2005 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 2006 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 2007 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 2008 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 2009 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 2010 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 2011 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 2012 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 2013 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 2014 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 2015 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 2016 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 2017 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 2018 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 2019 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 2020 if (Args.hasArg(OPT_objcmt_atomic_property)) 2021 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 2022 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 2023 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 2024 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 2025 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 2026 if (Args.hasArg(OPT_objcmt_migrate_all)) 2027 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 2028 2029 Opts.ObjCMTWhiteListPath = 2030 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 2031 2032 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2033 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2034 Diags.Report(diag::err_drv_argument_not_allowed_with) 2035 << "ARC migration" << "ObjC migration"; 2036 } 2037 2038 InputKind DashX(Language::Unknown); 2039 if (const Arg *A = Args.getLastArg(OPT_x)) { 2040 StringRef XValue = A->getValue(); 2041 2042 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2043 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2044 bool Preprocessed = XValue.consume_back("-cpp-output"); 2045 bool ModuleMap = XValue.consume_back("-module-map"); 2046 IsHeaderFile = !Preprocessed && !ModuleMap && 2047 XValue != "precompiled-header" && 2048 XValue.consume_back("-header"); 2049 2050 // Principal languages. 2051 DashX = llvm::StringSwitch<InputKind>(XValue) 2052 .Case("c", Language::C) 2053 .Case("cl", Language::OpenCL) 2054 .Case("cuda", Language::CUDA) 2055 .Case("hip", Language::HIP) 2056 .Case("c++", Language::CXX) 2057 .Case("objective-c", Language::ObjC) 2058 .Case("objective-c++", Language::ObjCXX) 2059 .Case("renderscript", Language::RenderScript) 2060 .Default(Language::Unknown); 2061 2062 // "objc[++]-cpp-output" is an acceptable synonym for 2063 // "objective-c[++]-cpp-output". 2064 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2065 DashX = llvm::StringSwitch<InputKind>(XValue) 2066 .Case("objc", Language::ObjC) 2067 .Case("objc++", Language::ObjCXX) 2068 .Default(Language::Unknown); 2069 2070 // Some special cases cannot be combined with suffixes. 2071 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2072 DashX = llvm::StringSwitch<InputKind>(XValue) 2073 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2074 .Case("assembler-with-cpp", Language::Asm) 2075 .Cases("ast", "pcm", "precompiled-header", 2076 InputKind(Language::Unknown, InputKind::Precompiled)) 2077 .Case("ir", Language::LLVM_IR) 2078 .Default(Language::Unknown); 2079 2080 if (DashX.isUnknown()) 2081 Diags.Report(diag::err_drv_invalid_value) 2082 << A->getAsString(Args) << A->getValue(); 2083 2084 if (Preprocessed) 2085 DashX = DashX.getPreprocessed(); 2086 if (ModuleMap) 2087 DashX = DashX.withFormat(InputKind::ModuleMap); 2088 } 2089 2090 // '-' is the default input if none is given. 2091 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2092 Opts.Inputs.clear(); 2093 if (Inputs.empty()) 2094 Inputs.push_back("-"); 2095 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2096 InputKind IK = DashX; 2097 if (IK.isUnknown()) { 2098 IK = FrontendOptions::getInputKindForExtension( 2099 StringRef(Inputs[i]).rsplit('.').second); 2100 // FIXME: Warn on this? 2101 if (IK.isUnknown()) 2102 IK = Language::C; 2103 // FIXME: Remove this hack. 2104 if (i == 0) 2105 DashX = IK; 2106 } 2107 2108 bool IsSystem = false; 2109 2110 // The -emit-module action implicitly takes a module map. 2111 if (Opts.ProgramAction == frontend::GenerateModule && 2112 IK.getFormat() == InputKind::Source) { 2113 IK = IK.withFormat(InputKind::ModuleMap); 2114 IsSystem = Opts.IsSystemModule; 2115 } 2116 2117 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2118 } 2119 2120 return DashX; 2121 } 2122 2123 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2124 void *MainAddr) { 2125 std::string ClangExecutable = 2126 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2127 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2128 } 2129 2130 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2131 const std::string &WorkingDir) { 2132 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2133 Opts.Verbose = Args.hasArg(OPT_v); 2134 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2135 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2136 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2137 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2138 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2139 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2140 2141 // Canonicalize -fmodules-cache-path before storing it. 2142 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2143 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2144 if (WorkingDir.empty()) 2145 llvm::sys::fs::make_absolute(P); 2146 else 2147 llvm::sys::fs::make_absolute(WorkingDir, P); 2148 } 2149 llvm::sys::path::remove_dots(P); 2150 Opts.ModuleCachePath = std::string(P.str()); 2151 2152 Opts.ModuleUserBuildPath = 2153 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2154 // Only the -fmodule-file=<name>=<file> form. 2155 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2156 StringRef Val = A->getValue(); 2157 if (Val.find('=') != StringRef::npos){ 2158 auto Split = Val.split('='); 2159 Opts.PrebuiltModuleFiles.insert( 2160 {std::string(Split.first), std::string(Split.second)}); 2161 } 2162 } 2163 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2164 Opts.AddPrebuiltModulePath(A->getValue()); 2165 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2166 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2167 Opts.ModulesValidateDiagnosticOptions = 2168 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2169 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2170 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2171 Opts.ModuleCachePruneInterval = 2172 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2173 Opts.ModuleCachePruneAfter = 2174 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2175 Opts.ModulesValidateOncePerBuildSession = 2176 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2177 Opts.BuildSessionTimestamp = 2178 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2179 Opts.ModulesValidateSystemHeaders = 2180 Args.hasArg(OPT_fmodules_validate_system_headers); 2181 Opts.ValidateASTInputFilesContent = 2182 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2183 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2184 Opts.ModuleFormat = A->getValue(); 2185 2186 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2187 StringRef MacroDef = A->getValue(); 2188 Opts.ModulesIgnoreMacros.insert( 2189 llvm::CachedHashString(MacroDef.split('=').first)); 2190 } 2191 2192 // Add -I..., -F..., and -index-header-map options in order. 2193 bool IsIndexHeaderMap = false; 2194 bool IsSysrootSpecified = 2195 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2196 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2197 if (A->getOption().matches(OPT_index_header_map)) { 2198 // -index-header-map applies to the next -I or -F. 2199 IsIndexHeaderMap = true; 2200 continue; 2201 } 2202 2203 frontend::IncludeDirGroup Group = 2204 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2205 2206 bool IsFramework = A->getOption().matches(OPT_F); 2207 std::string Path = A->getValue(); 2208 2209 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2210 SmallString<32> Buffer; 2211 llvm::sys::path::append(Buffer, Opts.Sysroot, 2212 llvm::StringRef(A->getValue()).substr(1)); 2213 Path = std::string(Buffer.str()); 2214 } 2215 2216 Opts.AddPath(Path, Group, IsFramework, 2217 /*IgnoreSysroot*/ true); 2218 IsIndexHeaderMap = false; 2219 } 2220 2221 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2222 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2223 for (const auto *A : 2224 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2225 if (A->getOption().matches(OPT_iprefix)) 2226 Prefix = A->getValue(); 2227 else if (A->getOption().matches(OPT_iwithprefix)) 2228 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2229 else 2230 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2231 } 2232 2233 for (const auto *A : Args.filtered(OPT_idirafter)) 2234 Opts.AddPath(A->getValue(), frontend::After, false, true); 2235 for (const auto *A : Args.filtered(OPT_iquote)) 2236 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2237 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2238 Opts.AddPath(A->getValue(), frontend::System, false, 2239 !A->getOption().matches(OPT_iwithsysroot)); 2240 for (const auto *A : Args.filtered(OPT_iframework)) 2241 Opts.AddPath(A->getValue(), frontend::System, true, true); 2242 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2243 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2244 /*IgnoreSysRoot=*/false); 2245 2246 // Add the paths for the various language specific isystem flags. 2247 for (const auto *A : Args.filtered(OPT_c_isystem)) 2248 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2249 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2250 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2251 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2252 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2253 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2254 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2255 2256 // Add the internal paths from a driver that detects standard include paths. 2257 for (const auto *A : 2258 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2259 frontend::IncludeDirGroup Group = frontend::System; 2260 if (A->getOption().matches(OPT_internal_externc_isystem)) 2261 Group = frontend::ExternCSystem; 2262 Opts.AddPath(A->getValue(), Group, false, true); 2263 } 2264 2265 // Add the path prefixes which are implicitly treated as being system headers. 2266 for (const auto *A : 2267 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2268 Opts.AddSystemHeaderPrefix( 2269 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2270 2271 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2272 Opts.AddVFSOverlayFile(A->getValue()); 2273 } 2274 2275 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2276 const llvm::Triple &T, 2277 PreprocessorOptions &PPOpts, 2278 LangStandard::Kind LangStd) { 2279 // Set some properties which depend solely on the input kind; it would be nice 2280 // to move these to the language standard, and have the driver resolve the 2281 // input kind + language standard. 2282 // 2283 // FIXME: Perhaps a better model would be for a single source file to have 2284 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2285 // simultaneously active? 2286 if (IK.getLanguage() == Language::Asm) { 2287 Opts.AsmPreprocessor = 1; 2288 } else if (IK.isObjectiveC()) { 2289 Opts.ObjC = 1; 2290 } 2291 2292 if (LangStd == LangStandard::lang_unspecified) { 2293 // Based on the base language, pick one. 2294 switch (IK.getLanguage()) { 2295 case Language::Unknown: 2296 case Language::LLVM_IR: 2297 llvm_unreachable("Invalid input kind!"); 2298 case Language::OpenCL: 2299 LangStd = LangStandard::lang_opencl10; 2300 break; 2301 case Language::CUDA: 2302 LangStd = LangStandard::lang_cuda; 2303 break; 2304 case Language::Asm: 2305 case Language::C: 2306 #if defined(CLANG_DEFAULT_STD_C) 2307 LangStd = CLANG_DEFAULT_STD_C; 2308 #else 2309 // The PS4 uses C99 as the default C standard. 2310 if (T.isPS4()) 2311 LangStd = LangStandard::lang_gnu99; 2312 else 2313 LangStd = LangStandard::lang_gnu17; 2314 #endif 2315 break; 2316 case Language::ObjC: 2317 #if defined(CLANG_DEFAULT_STD_C) 2318 LangStd = CLANG_DEFAULT_STD_C; 2319 #else 2320 LangStd = LangStandard::lang_gnu11; 2321 #endif 2322 break; 2323 case Language::CXX: 2324 case Language::ObjCXX: 2325 #if defined(CLANG_DEFAULT_STD_CXX) 2326 LangStd = CLANG_DEFAULT_STD_CXX; 2327 #else 2328 LangStd = LangStandard::lang_gnucxx14; 2329 #endif 2330 break; 2331 case Language::RenderScript: 2332 LangStd = LangStandard::lang_c99; 2333 break; 2334 case Language::HIP: 2335 LangStd = LangStandard::lang_hip; 2336 break; 2337 } 2338 } 2339 2340 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2341 Opts.LineComment = Std.hasLineComments(); 2342 Opts.C99 = Std.isC99(); 2343 Opts.C11 = Std.isC11(); 2344 Opts.C17 = Std.isC17(); 2345 Opts.C2x = Std.isC2x(); 2346 Opts.CPlusPlus = Std.isCPlusPlus(); 2347 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2348 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2349 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2350 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 2351 Opts.Digraphs = Std.hasDigraphs(); 2352 Opts.GNUMode = Std.isGNUMode(); 2353 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2354 Opts.GNUCVersion = 0; 2355 Opts.HexFloats = Std.hasHexFloats(); 2356 Opts.ImplicitInt = Std.hasImplicitInt(); 2357 2358 // Set OpenCL Version. 2359 Opts.OpenCL = Std.isOpenCL(); 2360 if (LangStd == LangStandard::lang_opencl10) 2361 Opts.OpenCLVersion = 100; 2362 else if (LangStd == LangStandard::lang_opencl11) 2363 Opts.OpenCLVersion = 110; 2364 else if (LangStd == LangStandard::lang_opencl12) 2365 Opts.OpenCLVersion = 120; 2366 else if (LangStd == LangStandard::lang_opencl20) 2367 Opts.OpenCLVersion = 200; 2368 else if (LangStd == LangStandard::lang_opencl30) 2369 Opts.OpenCLVersion = 300; 2370 else if (LangStd == LangStandard::lang_openclcpp) 2371 Opts.OpenCLCPlusPlusVersion = 100; 2372 2373 // OpenCL has some additional defaults. 2374 if (Opts.OpenCL) { 2375 Opts.AltiVec = 0; 2376 Opts.ZVector = 0; 2377 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2378 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2379 Opts.NativeHalfType = 1; 2380 Opts.NativeHalfArgsAndReturns = 1; 2381 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2382 2383 // Include default header file for OpenCL. 2384 if (Opts.IncludeDefaultHeader) { 2385 if (Opts.DeclareOpenCLBuiltins) { 2386 // Only include base header file for builtin types and constants. 2387 PPOpts.Includes.push_back("opencl-c-base.h"); 2388 } else { 2389 PPOpts.Includes.push_back("opencl-c.h"); 2390 } 2391 } 2392 } 2393 2394 Opts.HIP = IK.getLanguage() == Language::HIP; 2395 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2396 if (Opts.CUDA) 2397 // Set default FP_CONTRACT to FAST. 2398 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2399 2400 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2401 if (Opts.RenderScript) { 2402 Opts.NativeHalfType = 1; 2403 Opts.NativeHalfArgsAndReturns = 1; 2404 } 2405 2406 // OpenCL and C++ both have bool, true, false keywords. 2407 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2408 2409 // OpenCL has half keyword 2410 Opts.Half = Opts.OpenCL; 2411 2412 // C++ has wchar_t keyword. 2413 Opts.WChar = Opts.CPlusPlus; 2414 2415 Opts.GNUKeywords = Opts.GNUMode; 2416 Opts.CXXOperatorNames = Opts.CPlusPlus; 2417 2418 Opts.AlignedAllocation = Opts.CPlusPlus17; 2419 2420 Opts.DollarIdents = !Opts.AsmPreprocessor; 2421 2422 // Enable [[]] attributes in C++11 and C2x by default. 2423 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2424 } 2425 2426 /// Attempt to parse a visibility value out of the given argument. 2427 static Visibility parseVisibility(Arg *arg, ArgList &args, 2428 DiagnosticsEngine &diags) { 2429 StringRef value = arg->getValue(); 2430 if (value == "default") { 2431 return DefaultVisibility; 2432 } else if (value == "hidden" || value == "internal") { 2433 return HiddenVisibility; 2434 } else if (value == "protected") { 2435 // FIXME: diagnose if target does not support protected visibility 2436 return ProtectedVisibility; 2437 } 2438 2439 diags.Report(diag::err_drv_invalid_value) 2440 << arg->getAsString(args) << value; 2441 return DefaultVisibility; 2442 } 2443 2444 /// Check if input file kind and language standard are compatible. 2445 static bool IsInputCompatibleWithStandard(InputKind IK, 2446 const LangStandard &S) { 2447 switch (IK.getLanguage()) { 2448 case Language::Unknown: 2449 case Language::LLVM_IR: 2450 llvm_unreachable("should not parse language flags for this input"); 2451 2452 case Language::C: 2453 case Language::ObjC: 2454 case Language::RenderScript: 2455 return S.getLanguage() == Language::C; 2456 2457 case Language::OpenCL: 2458 return S.getLanguage() == Language::OpenCL; 2459 2460 case Language::CXX: 2461 case Language::ObjCXX: 2462 return S.getLanguage() == Language::CXX; 2463 2464 case Language::CUDA: 2465 // FIXME: What -std= values should be permitted for CUDA compilations? 2466 return S.getLanguage() == Language::CUDA || 2467 S.getLanguage() == Language::CXX; 2468 2469 case Language::HIP: 2470 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2471 2472 case Language::Asm: 2473 // Accept (and ignore) all -std= values. 2474 // FIXME: The -std= value is not ignored; it affects the tokenization 2475 // and preprocessing rules if we're preprocessing this asm input. 2476 return true; 2477 } 2478 2479 llvm_unreachable("unexpected input language"); 2480 } 2481 2482 /// Get language name for given input kind. 2483 static const StringRef GetInputKindName(InputKind IK) { 2484 switch (IK.getLanguage()) { 2485 case Language::C: 2486 return "C"; 2487 case Language::ObjC: 2488 return "Objective-C"; 2489 case Language::CXX: 2490 return "C++"; 2491 case Language::ObjCXX: 2492 return "Objective-C++"; 2493 case Language::OpenCL: 2494 return "OpenCL"; 2495 case Language::CUDA: 2496 return "CUDA"; 2497 case Language::RenderScript: 2498 return "RenderScript"; 2499 case Language::HIP: 2500 return "HIP"; 2501 2502 case Language::Asm: 2503 return "Asm"; 2504 case Language::LLVM_IR: 2505 return "LLVM IR"; 2506 2507 case Language::Unknown: 2508 break; 2509 } 2510 llvm_unreachable("unknown input language"); 2511 } 2512 2513 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2514 const TargetOptions &TargetOpts, 2515 PreprocessorOptions &PPOpts, 2516 DiagnosticsEngine &Diags) { 2517 // FIXME: Cleanup per-file based stuff. 2518 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2519 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2520 LangStd = LangStandard::getLangKind(A->getValue()); 2521 if (LangStd == LangStandard::lang_unspecified) { 2522 Diags.Report(diag::err_drv_invalid_value) 2523 << A->getAsString(Args) << A->getValue(); 2524 // Report supported standards with short description. 2525 for (unsigned KindValue = 0; 2526 KindValue != LangStandard::lang_unspecified; 2527 ++KindValue) { 2528 const LangStandard &Std = LangStandard::getLangStandardForKind( 2529 static_cast<LangStandard::Kind>(KindValue)); 2530 if (IsInputCompatibleWithStandard(IK, Std)) { 2531 auto Diag = Diags.Report(diag::note_drv_use_standard); 2532 Diag << Std.getName() << Std.getDescription(); 2533 unsigned NumAliases = 0; 2534 #define LANGSTANDARD(id, name, lang, desc, features) 2535 #define LANGSTANDARD_ALIAS(id, alias) \ 2536 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2537 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2538 #include "clang/Basic/LangStandards.def" 2539 Diag << NumAliases; 2540 #define LANGSTANDARD(id, name, lang, desc, features) 2541 #define LANGSTANDARD_ALIAS(id, alias) \ 2542 if (KindValue == LangStandard::lang_##id) Diag << alias; 2543 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2544 #include "clang/Basic/LangStandards.def" 2545 } 2546 } 2547 } else { 2548 // Valid standard, check to make sure language and standard are 2549 // compatible. 2550 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2551 if (!IsInputCompatibleWithStandard(IK, Std)) { 2552 Diags.Report(diag::err_drv_argument_not_allowed_with) 2553 << A->getAsString(Args) << GetInputKindName(IK); 2554 } 2555 } 2556 } 2557 2558 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2559 Opts.DllExportInlines = false; 2560 2561 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2562 StringRef Name = A->getValue(); 2563 if (Name == "full" || Name == "branch") { 2564 Opts.CFProtectionBranch = 1; 2565 } 2566 } 2567 // -cl-std only applies for OpenCL language standards. 2568 // Override the -std option in this case. 2569 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2570 LangStandard::Kind OpenCLLangStd 2571 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2572 .Cases("cl", "CL", LangStandard::lang_opencl10) 2573 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2574 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2575 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2576 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 2577 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2578 .Default(LangStandard::lang_unspecified); 2579 2580 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2581 Diags.Report(diag::err_drv_invalid_value) 2582 << A->getAsString(Args) << A->getValue(); 2583 } 2584 else 2585 LangStd = OpenCLLangStd; 2586 } 2587 2588 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2589 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2590 if (Opts.SYCL) { 2591 // -sycl-std applies to any SYCL source, not only those containing kernels, 2592 // but also those using the SYCL API 2593 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2594 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2595 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2596 .Default(0U); 2597 2598 if (Opts.SYCLVersion == 0U) { 2599 // User has passed an invalid value to the flag, this is an error 2600 Diags.Report(diag::err_drv_invalid_value) 2601 << A->getAsString(Args) << A->getValue(); 2602 } 2603 } 2604 } 2605 2606 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2607 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2608 2609 llvm::Triple T(TargetOpts.Triple); 2610 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2611 2612 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2613 // This option should be deprecated for CL > 1.0 because 2614 // this option was added for compatibility with OpenCL 1.0. 2615 if (Args.getLastArg(OPT_cl_strict_aliasing) 2616 && Opts.OpenCLVersion > 100) { 2617 Diags.Report(diag::warn_option_invalid_ocl_version) 2618 << Opts.getOpenCLVersionTuple().getAsString() 2619 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2620 } 2621 2622 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2623 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2624 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2625 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2626 // name, as it doesn't seem a useful distinction. 2627 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2628 Opts.GNUKeywords); 2629 2630 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2631 2632 if (Args.hasArg(OPT_fno_operator_names)) 2633 Opts.CXXOperatorNames = 0; 2634 2635 if (Args.hasArg(OPT_fcuda_is_device)) 2636 Opts.CUDAIsDevice = 1; 2637 2638 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2639 Opts.CUDAAllowVariadicFunctions = 1; 2640 2641 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2642 Opts.CUDAHostDeviceConstexpr = 0; 2643 2644 if (Args.hasArg(OPT_fgpu_defer_diag)) 2645 Opts.GPUDeferDiag = 1; 2646 2647 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2648 Opts.CUDADeviceApproxTranscendentals = 1; 2649 2650 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2651 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2652 if (Opts.HIP) 2653 Opts.GPUAllowDeviceInit = 1; 2654 else 2655 Diags.Report(diag::warn_ignored_hip_only_option) 2656 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2657 } 2658 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2659 if (Opts.HIP) 2660 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2661 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2662 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2663 Diags.Report(diag::warn_ignored_hip_only_option) 2664 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2665 2666 if (Opts.ObjC) { 2667 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2668 StringRef value = arg->getValue(); 2669 if (Opts.ObjCRuntime.tryParse(value)) 2670 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2671 } 2672 2673 if (Args.hasArg(OPT_fobjc_gc_only)) 2674 Opts.setGC(LangOptions::GCOnly); 2675 else if (Args.hasArg(OPT_fobjc_gc)) 2676 Opts.setGC(LangOptions::HybridGC); 2677 else if (Args.hasArg(OPT_fobjc_arc)) { 2678 Opts.ObjCAutoRefCount = 1; 2679 if (!Opts.ObjCRuntime.allowsARC()) 2680 Diags.Report(diag::err_arc_unsupported_on_runtime); 2681 } 2682 2683 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2684 // whether the feature is actually enabled. This is predominantly 2685 // determined by -fobjc-runtime, but we allow it to be overridden 2686 // from the command line for testing purposes. 2687 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2688 Opts.ObjCWeakRuntime = 1; 2689 else 2690 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2691 2692 // ObjCWeak determines whether __weak is actually enabled. 2693 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2694 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2695 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2696 assert(!Opts.ObjCWeak); 2697 } else if (Opts.getGC() != LangOptions::NonGC) { 2698 Diags.Report(diag::err_objc_weak_with_gc); 2699 } else if (!Opts.ObjCWeakRuntime) { 2700 Diags.Report(diag::err_objc_weak_unsupported); 2701 } else { 2702 Opts.ObjCWeak = 1; 2703 } 2704 } else if (Opts.ObjCAutoRefCount) { 2705 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2706 } 2707 2708 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2709 Opts.ObjCInferRelatedResultType = 0; 2710 2711 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2712 Opts.ObjCSubscriptingLegacyRuntime = 2713 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2714 } 2715 2716 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2717 // Check that the version has 1 to 3 components and the minor and patch 2718 // versions fit in two decimal digits. 2719 VersionTuple GNUCVer; 2720 bool Invalid = GNUCVer.tryParse(A->getValue()); 2721 unsigned Major = GNUCVer.getMajor(); 2722 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2723 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2724 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2725 Diags.Report(diag::err_drv_invalid_value) 2726 << A->getAsString(Args) << A->getValue(); 2727 } 2728 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2729 } 2730 2731 if (Args.hasArg(OPT_fgnu89_inline)) { 2732 if (Opts.CPlusPlus) 2733 Diags.Report(diag::err_drv_argument_not_allowed_with) 2734 << "-fgnu89-inline" << GetInputKindName(IK); 2735 else 2736 Opts.GNUInline = 1; 2737 } 2738 2739 if (Args.hasArg(OPT_fapple_kext)) { 2740 if (!Opts.CPlusPlus) 2741 Diags.Report(diag::warn_c_kext); 2742 else 2743 Opts.AppleKext = 1; 2744 } 2745 2746 if (Args.hasArg(OPT_print_ivar_layout)) 2747 Opts.ObjCGCBitmapPrint = 1; 2748 2749 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2750 Opts.NoConstantCFStrings = 1; 2751 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2752 Opts.CFRuntime = 2753 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2754 .Cases("unspecified", "standalone", "objc", 2755 LangOptions::CoreFoundationABI::ObjectiveC) 2756 .Cases("swift", "swift-5.0", 2757 LangOptions::CoreFoundationABI::Swift5_0) 2758 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2759 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2760 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2761 2762 if (Args.hasArg(OPT_fzvector)) 2763 Opts.ZVector = 1; 2764 2765 if (Args.hasArg(OPT_pthread)) 2766 Opts.POSIXThreads = 1; 2767 2768 // The value-visibility mode defaults to "default". 2769 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2770 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2771 } else { 2772 Opts.setValueVisibilityMode(DefaultVisibility); 2773 } 2774 2775 // The type-visibility mode defaults to the value-visibility mode. 2776 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2777 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2778 } else { 2779 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2780 } 2781 2782 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2783 Opts.InlineVisibilityHidden = 1; 2784 2785 if (Args.hasArg(OPT_fvisibility_inlines_hidden_static_local_var)) 2786 Opts.VisibilityInlinesHiddenStaticLocalVar = 1; 2787 2788 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2789 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2790 2791 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2792 Opts.SetVisibilityForExternDecls = 1; 2793 2794 if (Args.hasArg(OPT_ftrapv)) { 2795 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2796 // Set the handler, if one is specified. 2797 Opts.OverflowHandler = 2798 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2799 } 2800 else if (Args.hasArg(OPT_fwrapv)) 2801 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2802 2803 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2804 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2805 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2806 Opts.MSCompatibilityVersion = 0; 2807 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2808 VersionTuple VT; 2809 if (VT.tryParse(A->getValue())) 2810 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2811 << A->getValue(); 2812 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2813 VT.getMinor().getValueOr(0) * 100000 + 2814 VT.getSubminor().getValueOr(0); 2815 } 2816 2817 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2818 // is specified, or -std is set to a conforming mode. 2819 // Trigraphs are disabled by default in c++1z onwards. 2820 // For z/OS, trigraphs are enabled by default (without regard to the above). 2821 Opts.Trigraphs = 2822 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 2823 Opts.Trigraphs = 2824 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2825 2826 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2827 OPT_fno_dollars_in_identifiers, 2828 Opts.DollarIdents); 2829 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2830 Opts.setVtorDispMode( 2831 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2832 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2833 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2834 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2835 Opts.ConstStrings); 2836 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2837 using LaxKind = LangOptions::LaxVectorConversionKind; 2838 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2839 .Case("none", LaxKind::None) 2840 .Case("integer", LaxKind::Integer) 2841 .Case("all", LaxKind::All) 2842 .Default(llvm::None)) 2843 Opts.setLaxVectorConversions(*Kind); 2844 else 2845 Diags.Report(diag::err_drv_invalid_value) 2846 << A->getAsString(Args) << A->getValue(); 2847 } 2848 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2849 Opts.ThreadsafeStatics = 0; 2850 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2851 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2852 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2853 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2854 2855 // -ffixed-point 2856 Opts.FixedPoint = 2857 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2858 !Opts.CPlusPlus; 2859 Opts.PaddingOnUnsignedFixedPoint = 2860 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2861 OPT_fno_padding_on_unsigned_fixed_point, 2862 /*Default=*/false) && 2863 Opts.FixedPoint; 2864 2865 // Handle exception personalities 2866 Arg *A = Args.getLastArg( 2867 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2868 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2869 if (A) { 2870 const Option &Opt = A->getOption(); 2871 llvm::Triple T(TargetOpts.Triple); 2872 if (T.isWindowsMSVCEnvironment()) 2873 Diags.Report(diag::err_fe_invalid_exception_model) 2874 << Opt.getName() << T.str(); 2875 2876 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2877 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2878 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2879 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2880 } 2881 2882 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2883 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2884 2885 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2886 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2887 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2888 && Opts.OpenCLVersion == 200); 2889 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2890 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2891 2892 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2893 Opts.SYCLIsDevice || 2894 Args.hasArg(OPT_fconvergent_functions); 2895 2896 Opts.DoubleSquareBracketAttributes = 2897 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2898 OPT_fno_double_square_bracket_attributes, 2899 Opts.DoubleSquareBracketAttributes); 2900 2901 Opts.CPlusPlusModules = Opts.CPlusPlus20; 2902 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2903 Opts.Modules = 2904 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2905 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2906 Opts.ModulesDeclUse = 2907 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2908 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2909 // enter a different module (eg, when building a header unit). 2910 Opts.ModulesLocalVisibility = 2911 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2912 Opts.CPlusPlusModules; 2913 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2914 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2915 Opts.ModulesSearchAll = Opts.Modules && 2916 !Args.hasArg(OPT_fno_modules_search_all) && 2917 Args.hasArg(OPT_fmodules_search_all); 2918 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2919 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2920 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2921 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2922 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 2923 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2924 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2925 .Case("char", 1) 2926 .Case("short", 2) 2927 .Case("int", 4) 2928 .Default(0); 2929 if (Opts.WCharSize == 0) 2930 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2931 } 2932 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2933 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2934 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2935 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2936 if (!Opts.NoBuiltin) 2937 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2938 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2939 Opts.RelaxedTemplateTemplateArgs = 2940 Args.hasArg(OPT_frelaxed_template_template_args); 2941 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2942 Opts.AlignedAllocation = 2943 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2944 Opts.AlignedAllocation); 2945 Opts.AlignedAllocationUnavailable = 2946 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2947 Opts.NewAlignOverride = 2948 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2949 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2950 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2951 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2952 << A->getValue(); 2953 Opts.NewAlignOverride = 0; 2954 } 2955 Opts.ConceptSatisfactionCaching = 2956 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2957 if (Args.hasArg(OPT_fconcepts_ts)) 2958 Diags.Report(diag::warn_fe_concepts_ts_flag); 2959 // Recovery AST still heavily relies on dependent-type machinery. 2960 Opts.RecoveryAST = 2961 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, Opts.CPlusPlus); 2962 Opts.RecoveryASTType = Args.hasFlag( 2963 OPT_frecovery_ast_type, OPT_fno_recovery_ast_type, Opts.CPlusPlus); 2964 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2965 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2966 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2967 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2968 Opts.InstantiationDepth = 2969 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2970 Opts.ArrowDepth = 2971 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2972 Opts.ConstexprCallDepth = 2973 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2974 Opts.ConstexprStepLimit = 2975 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2976 Opts.EnableNewConstInterp = 2977 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2978 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2979 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2980 Opts.NumLargeByValueCopy = 2981 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2982 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2983 Opts.ObjCConstantStringClass = 2984 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2985 Opts.ObjCDefaultSynthProperties = 2986 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2987 Opts.EncodeExtendedBlockSig = 2988 Args.hasArg(OPT_fencode_extended_block_signature); 2989 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2990 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2991 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2992 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2993 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 2994 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2995 ? 128 2996 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2997 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2998 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2999 Opts.ROPI = Args.hasArg(OPT_fropi); 3000 Opts.RWPI = Args.hasArg(OPT_frwpi); 3001 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3002 Opts.Static = Args.hasArg(OPT_static_define); 3003 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 3004 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 3005 || Args.hasArg(OPT_fdump_record_layouts); 3006 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 3007 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 3008 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 3009 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 3010 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 3011 if (Opts.FastRelaxedMath) 3012 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3013 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 3014 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 3015 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 3016 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 3017 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 3018 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 3019 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 3020 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 3021 Opts.CurrentModule = Opts.ModuleName; 3022 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 3023 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 3024 llvm::sort(Opts.ModuleFeatures); 3025 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 3026 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 3027 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 3028 // is enabled. 3029 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 3030 | Opts.NativeHalfArgsAndReturns; 3031 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 3032 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 3033 3034 Opts.ArmSveVectorBits = 3035 getLastArgIntValue(Args, options::OPT_msve_vector_bits_EQ, 0, Diags); 3036 3037 // __declspec is enabled by default for the PS4 by the driver, and also 3038 // enabled for Microsoft Extensions or Borland Extensions, here. 3039 // 3040 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 3041 // CUDA extension. However, it is required for supporting 3042 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 3043 // been rewritten in terms of something more generic, remove the Opts.CUDA 3044 // term here. 3045 Opts.DeclSpecKeyword = 3046 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 3047 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 3048 3049 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 3050 switch (llvm::StringSwitch<unsigned>(A->getValue()) 3051 .Case("target", LangOptions::ASMM_Target) 3052 .Case("no", LangOptions::ASMM_Off) 3053 .Case("yes", LangOptions::ASMM_On) 3054 .Default(255)) { 3055 default: 3056 Diags.Report(diag::err_drv_invalid_value) 3057 << "-faddress-space-map-mangling=" << A->getValue(); 3058 break; 3059 case LangOptions::ASMM_Target: 3060 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 3061 break; 3062 case LangOptions::ASMM_On: 3063 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 3064 break; 3065 case LangOptions::ASMM_Off: 3066 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 3067 break; 3068 } 3069 } 3070 3071 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 3072 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 3073 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 3074 A->getValue()) 3075 .Case("single", 3076 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3077 .Case("multiple", 3078 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3079 .Case("virtual", 3080 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3081 .Default(LangOptions::PPTMK_BestCase); 3082 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3083 Diags.Report(diag::err_drv_invalid_value) 3084 << "-fms-memptr-rep=" << A->getValue(); 3085 3086 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3087 } 3088 3089 // Check for MS default calling conventions being specified. 3090 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3091 LangOptions::DefaultCallingConvention DefaultCC = 3092 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3093 .Case("cdecl", LangOptions::DCC_CDecl) 3094 .Case("fastcall", LangOptions::DCC_FastCall) 3095 .Case("stdcall", LangOptions::DCC_StdCall) 3096 .Case("vectorcall", LangOptions::DCC_VectorCall) 3097 .Case("regcall", LangOptions::DCC_RegCall) 3098 .Default(LangOptions::DCC_None); 3099 if (DefaultCC == LangOptions::DCC_None) 3100 Diags.Report(diag::err_drv_invalid_value) 3101 << "-fdefault-calling-conv=" << A->getValue(); 3102 3103 llvm::Triple T(TargetOpts.Triple); 3104 llvm::Triple::ArchType Arch = T.getArch(); 3105 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3106 DefaultCC == LangOptions::DCC_StdCall) && 3107 Arch != llvm::Triple::x86; 3108 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3109 DefaultCC == LangOptions::DCC_RegCall) && 3110 !T.isX86(); 3111 if (emitError) 3112 Diags.Report(diag::err_drv_argument_not_allowed_with) 3113 << A->getSpelling() << T.getTriple(); 3114 else 3115 Opts.setDefaultCallingConv(DefaultCC); 3116 } 3117 3118 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3119 // An explicit -fno-semantic-interposition infers dso_local. 3120 Opts.ExplicitNoSemanticInterposition = 3121 Args.hasArg(OPT_fno_semantic_interposition); 3122 3123 // -mrtd option 3124 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3125 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3126 Diags.Report(diag::err_drv_argument_not_allowed_with) 3127 << A->getSpelling() << "-fdefault-calling-conv"; 3128 else { 3129 llvm::Triple T(TargetOpts.Triple); 3130 if (T.getArch() != llvm::Triple::x86) 3131 Diags.Report(diag::err_drv_argument_not_allowed_with) 3132 << A->getSpelling() << T.getTriple(); 3133 else 3134 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3135 } 3136 } 3137 3138 // Check if -fopenmp is specified and set default version to 5.0. 3139 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 50 : 0; 3140 // Check if -fopenmp-simd is specified. 3141 bool IsSimdSpecified = 3142 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3143 /*Default=*/false); 3144 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3145 Opts.OpenMPUseTLS = 3146 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3147 Opts.OpenMPIsDevice = 3148 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3149 Opts.OpenMPIRBuilder = 3150 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3151 bool IsTargetSpecified = 3152 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3153 3154 if (Opts.OpenMP || Opts.OpenMPSimd) { 3155 if (int Version = getLastArgIntValue( 3156 Args, OPT_fopenmp_version_EQ, 3157 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3158 Opts.OpenMP = Version; 3159 // Provide diagnostic when a given target is not expected to be an OpenMP 3160 // device or host. 3161 if (!Opts.OpenMPIsDevice) { 3162 switch (T.getArch()) { 3163 default: 3164 break; 3165 // Add unsupported host targets here: 3166 case llvm::Triple::nvptx: 3167 case llvm::Triple::nvptx64: 3168 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3169 << TargetOpts.Triple; 3170 break; 3171 } 3172 } 3173 } 3174 3175 // Set the flag to prevent the implementation from emitting device exception 3176 // handling code for those requiring so. 3177 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3178 Opts.OpenCLCPlusPlus) { 3179 Opts.Exceptions = 0; 3180 Opts.CXXExceptions = 0; 3181 } 3182 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3183 Opts.OpenMPCUDANumSMs = 3184 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3185 Opts.OpenMPCUDANumSMs, Diags); 3186 Opts.OpenMPCUDABlocksPerSM = 3187 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3188 Opts.OpenMPCUDABlocksPerSM, Diags); 3189 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3190 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3191 Opts.OpenMPCUDAReductionBufNum, Diags); 3192 } 3193 3194 // Prevent auto-widening the representation of loop counters during an 3195 // OpenMP collapse clause. 3196 Opts.OpenMPOptimisticCollapse = 3197 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3198 3199 // Get the OpenMP target triples if any. 3200 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3201 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3202 auto getArchPtrSize = [](const llvm::Triple &T) { 3203 if (T.isArch16Bit()) 3204 return Arch16Bit; 3205 if (T.isArch32Bit()) 3206 return Arch32Bit; 3207 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3208 return Arch64Bit; 3209 }; 3210 3211 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3212 llvm::Triple TT(A->getValue(i)); 3213 3214 if (TT.getArch() == llvm::Triple::UnknownArch || 3215 !(TT.getArch() == llvm::Triple::aarch64 || 3216 TT.getArch() == llvm::Triple::ppc || 3217 TT.getArch() == llvm::Triple::ppc64 || 3218 TT.getArch() == llvm::Triple::ppc64le || 3219 TT.getArch() == llvm::Triple::nvptx || 3220 TT.getArch() == llvm::Triple::nvptx64 || 3221 TT.getArch() == llvm::Triple::amdgcn || 3222 TT.getArch() == llvm::Triple::x86 || 3223 TT.getArch() == llvm::Triple::x86_64)) 3224 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3225 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3226 Diags.Report(diag::err_drv_incompatible_omp_arch) 3227 << A->getValue(i) << T.str(); 3228 else 3229 Opts.OMPTargetTriples.push_back(TT); 3230 } 3231 } 3232 3233 // Get OpenMP host file path if any and report if a non existent file is 3234 // found 3235 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3236 Opts.OMPHostIRFile = A->getValue(); 3237 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3238 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3239 << Opts.OMPHostIRFile; 3240 } 3241 3242 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3243 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3244 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3245 3246 // Set CUDA support for parallel execution of target regions for OpenMP target 3247 // NVPTX/AMDGCN if specified in options. 3248 Opts.OpenMPCUDATargetParallel = 3249 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3250 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3251 3252 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3253 Opts.OpenMPCUDAForceFullRuntime = 3254 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3255 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3256 3257 // Record whether the __DEPRECATED define was requested. 3258 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3259 OPT_fno_deprecated_macro, 3260 Opts.Deprecated); 3261 3262 // FIXME: Eliminate this dependency. 3263 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3264 OptSize = getOptimizationLevelSize(Args); 3265 Opts.Optimize = Opt != 0; 3266 Opts.OptimizeSize = OptSize != 0; 3267 3268 // This is the __NO_INLINE__ define, which just depends on things like the 3269 // optimization level and -fno-inline, not actually whether the backend has 3270 // inlining enabled. 3271 Opts.NoInlineDefine = !Opts.Optimize; 3272 if (Arg *InlineArg = Args.getLastArg( 3273 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3274 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3275 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3276 Opts.NoInlineDefine = true; 3277 3278 Opts.FastMath = 3279 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_fast_relaxed_math); 3280 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3281 Args.hasArg(OPT_ffast_math) || 3282 Args.hasArg(OPT_cl_finite_math_only) || 3283 Args.hasArg(OPT_cl_fast_relaxed_math); 3284 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3285 Args.hasArg(OPT_ffast_math) || 3286 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3287 Args.hasArg(OPT_cl_fast_relaxed_math); 3288 Opts.AllowFPReassoc = Args.hasArg(OPT_mreassociate) || 3289 Args.hasArg(OPT_menable_unsafe_fp_math) || 3290 Args.hasArg(OPT_ffast_math) || 3291 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3292 Args.hasArg(OPT_cl_fast_relaxed_math); 3293 Opts.NoHonorNaNs = 3294 Args.hasArg(OPT_menable_no_nans) || Args.hasArg(OPT_ffinite_math_only) || 3295 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_finite_math_only) || 3296 Args.hasArg(OPT_cl_fast_relaxed_math); 3297 Opts.NoHonorInfs = Args.hasArg(OPT_menable_no_infinities) || 3298 Args.hasArg(OPT_ffinite_math_only) || 3299 Args.hasArg(OPT_ffast_math) || 3300 Args.hasArg(OPT_cl_finite_math_only) || 3301 Args.hasArg(OPT_cl_fast_relaxed_math); 3302 Opts.NoSignedZero = Args.hasArg(OPT_fno_signed_zeros) || 3303 Args.hasArg(OPT_menable_unsafe_fp_math) || 3304 Args.hasArg(OPT_ffast_math) || 3305 Args.hasArg(OPT_cl_no_signed_zeros) || 3306 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3307 Args.hasArg(OPT_cl_fast_relaxed_math); 3308 Opts.AllowRecip = Args.hasArg(OPT_freciprocal_math) || 3309 Args.hasArg(OPT_menable_unsafe_fp_math) || 3310 Args.hasArg(OPT_ffast_math) || 3311 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3312 Args.hasArg(OPT_cl_fast_relaxed_math); 3313 // Currently there's no clang option to enable this individually 3314 Opts.ApproxFunc = Args.hasArg(OPT_menable_unsafe_fp_math) || 3315 Args.hasArg(OPT_ffast_math) || 3316 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3317 Args.hasArg(OPT_cl_fast_relaxed_math); 3318 3319 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3320 StringRef Val = A->getValue(); 3321 if (Val == "fast") 3322 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3323 else if (Val == "on") 3324 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3325 else if (Val == "off") 3326 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3327 else 3328 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3329 } 3330 3331 if (Args.hasArg(OPT_fexperimental_strict_floating_point)) 3332 Opts.ExpStrictFP = true; 3333 3334 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3335 if (Args.hasArg(OPT_frounding_math)) { 3336 FPRM = llvm::RoundingMode::Dynamic; 3337 } 3338 Opts.setFPRoundingMode(FPRM); 3339 3340 if (Args.hasArg(OPT_ftrapping_math)) { 3341 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3342 } 3343 3344 if (Args.hasArg(OPT_fno_trapping_math)) { 3345 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3346 } 3347 3348 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3349 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3350 StringRef Val = A->getValue(); 3351 if (Val.equals("ignore")) 3352 FPEB = LangOptions::FPE_Ignore; 3353 else if (Val.equals("maytrap")) 3354 FPEB = LangOptions::FPE_MayTrap; 3355 else if (Val.equals("strict")) 3356 FPEB = LangOptions::FPE_Strict; 3357 else 3358 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3359 } 3360 Opts.setFPExceptionMode(FPEB); 3361 3362 Opts.RetainCommentsFromSystemHeaders = 3363 Args.hasArg(OPT_fretain_comments_from_system_headers); 3364 3365 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3366 switch (SSP) { 3367 default: 3368 Diags.Report(diag::err_drv_invalid_value) 3369 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3370 break; 3371 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3372 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3373 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3374 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3375 } 3376 3377 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3378 StringRef Val = A->getValue(); 3379 if (Val == "uninitialized") 3380 Opts.setTrivialAutoVarInit( 3381 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3382 else if (Val == "zero") 3383 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3384 else if (Val == "pattern") 3385 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3386 else 3387 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3388 } 3389 3390 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init_stop_after)) { 3391 int Val = std::stoi(A->getValue()); 3392 Opts.TrivialAutoVarInitStopAfter = Val; 3393 } 3394 3395 // Parse -fsanitize= arguments. 3396 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3397 Diags, Opts.Sanitize); 3398 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3399 Opts.SanitizeAddressFieldPadding = 3400 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3401 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3402 std::vector<std::string> systemBlacklists = 3403 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3404 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3405 systemBlacklists.begin(), 3406 systemBlacklists.end()); 3407 3408 // -fxray-instrument 3409 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3410 Opts.XRayAlwaysEmitCustomEvents = 3411 Args.hasArg(OPT_fxray_always_emit_customevents); 3412 Opts.XRayAlwaysEmitTypedEvents = 3413 Args.hasArg(OPT_fxray_always_emit_typedevents); 3414 3415 // -fxray-{always,never}-instrument= filenames. 3416 Opts.XRayAlwaysInstrumentFiles = 3417 Args.getAllArgValues(OPT_fxray_always_instrument); 3418 Opts.XRayNeverInstrumentFiles = 3419 Args.getAllArgValues(OPT_fxray_never_instrument); 3420 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3421 3422 // -fforce-emit-vtables 3423 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3424 3425 // -fallow-editor-placeholders 3426 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3427 3428 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3429 3430 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3431 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3432 3433 StringRef Ver = A->getValue(); 3434 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3435 unsigned Major, Minor = 0; 3436 3437 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3438 // y or y.0 (4 <= y <= current version). 3439 if (!VerParts.first.startswith("0") && 3440 !VerParts.first.getAsInteger(10, Major) && 3441 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3442 (Major == 3 ? VerParts.second.size() == 1 && 3443 !VerParts.second.getAsInteger(10, Minor) 3444 : VerParts.first.size() == Ver.size() || 3445 VerParts.second == "0")) { 3446 // Got a valid version number. 3447 if (Major == 3 && Minor <= 8) 3448 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3449 else if (Major <= 4) 3450 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3451 else if (Major <= 6) 3452 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3453 else if (Major <= 7) 3454 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3455 else if (Major <= 9) 3456 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3457 else if (Major <= 11) 3458 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3459 } else if (Ver != "latest") { 3460 Diags.Report(diag::err_drv_invalid_value) 3461 << A->getAsString(Args) << A->getValue(); 3462 } 3463 } 3464 3465 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3466 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3467 Opts.PCHInstantiateTemplates = Args.hasArg(OPT_fpch_instantiate_templates); 3468 3469 Opts.MatrixTypes = Args.hasArg(OPT_fenable_matrix); 3470 3471 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3472 3473 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3474 StringRef SignScope = A->getValue(); 3475 3476 if (SignScope.equals_lower("none")) 3477 Opts.setSignReturnAddressScope( 3478 LangOptions::SignReturnAddressScopeKind::None); 3479 else if (SignScope.equals_lower("all")) 3480 Opts.setSignReturnAddressScope( 3481 LangOptions::SignReturnAddressScopeKind::All); 3482 else if (SignScope.equals_lower("non-leaf")) 3483 Opts.setSignReturnAddressScope( 3484 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3485 else 3486 Diags.Report(diag::err_drv_invalid_value) 3487 << A->getAsString(Args) << SignScope; 3488 3489 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3490 StringRef SignKey = A->getValue(); 3491 if (!SignScope.empty() && !SignKey.empty()) { 3492 if (SignKey.equals_lower("a_key")) 3493 Opts.setSignReturnAddressKey( 3494 LangOptions::SignReturnAddressKeyKind::AKey); 3495 else if (SignKey.equals_lower("b_key")) 3496 Opts.setSignReturnAddressKey( 3497 LangOptions::SignReturnAddressKeyKind::BKey); 3498 else 3499 Diags.Report(diag::err_drv_invalid_value) 3500 << A->getAsString(Args) << SignKey; 3501 } 3502 } 3503 } 3504 3505 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3506 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 3507 3508 Opts.CompatibilityQualifiedIdBlockParamTypeChecking = 3509 Args.hasArg(OPT_fcompatibility_qualified_id_block_param_type_checking); 3510 3511 Opts.RelativeCXXABIVTables = 3512 Args.hasFlag(OPT_fexperimental_relative_cxx_abi_vtables, 3513 OPT_fno_experimental_relative_cxx_abi_vtables, 3514 /*default=*/false); 3515 } 3516 3517 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3518 switch (Action) { 3519 case frontend::ASTDeclList: 3520 case frontend::ASTDump: 3521 case frontend::ASTPrint: 3522 case frontend::ASTView: 3523 case frontend::EmitAssembly: 3524 case frontend::EmitBC: 3525 case frontend::EmitHTML: 3526 case frontend::EmitLLVM: 3527 case frontend::EmitLLVMOnly: 3528 case frontend::EmitCodeGenOnly: 3529 case frontend::EmitObj: 3530 case frontend::FixIt: 3531 case frontend::GenerateModule: 3532 case frontend::GenerateModuleInterface: 3533 case frontend::GenerateHeaderModule: 3534 case frontend::GeneratePCH: 3535 case frontend::GenerateInterfaceStubs: 3536 case frontend::ParseSyntaxOnly: 3537 case frontend::ModuleFileInfo: 3538 case frontend::VerifyPCH: 3539 case frontend::PluginAction: 3540 case frontend::RewriteObjC: 3541 case frontend::RewriteTest: 3542 case frontend::RunAnalysis: 3543 case frontend::TemplightDump: 3544 case frontend::MigrateSource: 3545 return false; 3546 3547 case frontend::DumpCompilerOptions: 3548 case frontend::DumpRawTokens: 3549 case frontend::DumpTokens: 3550 case frontend::InitOnly: 3551 case frontend::PrintPreamble: 3552 case frontend::PrintPreprocessedInput: 3553 case frontend::RewriteMacros: 3554 case frontend::RunPreprocessorOnly: 3555 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3556 return true; 3557 } 3558 llvm_unreachable("invalid frontend action"); 3559 } 3560 3561 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3562 DiagnosticsEngine &Diags, 3563 frontend::ActionKind Action) { 3564 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3565 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3566 Args.hasArg(OPT_pch_through_hdrstop_use); 3567 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3568 Opts.PCHThroughHeader = 3569 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3570 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3571 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3572 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3573 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3574 3575 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3576 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3577 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3578 3579 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3580 auto Split = StringRef(A).split('='); 3581 Opts.MacroPrefixMap.insert( 3582 {std::string(Split.first), std::string(Split.second)}); 3583 } 3584 3585 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3586 StringRef Value(A->getValue()); 3587 size_t Comma = Value.find(','); 3588 unsigned Bytes = 0; 3589 unsigned EndOfLine = 0; 3590 3591 if (Comma == StringRef::npos || 3592 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3593 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3594 Diags.Report(diag::err_drv_preamble_format); 3595 else { 3596 Opts.PrecompiledPreambleBytes.first = Bytes; 3597 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3598 } 3599 } 3600 3601 // Add the __CET__ macro if a CFProtection option is set. 3602 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3603 StringRef Name = A->getValue(); 3604 if (Name == "branch") 3605 Opts.addMacroDef("__CET__=1"); 3606 else if (Name == "return") 3607 Opts.addMacroDef("__CET__=2"); 3608 else if (Name == "full") 3609 Opts.addMacroDef("__CET__=3"); 3610 } 3611 3612 // Add macros from the command line. 3613 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3614 if (A->getOption().matches(OPT_D)) 3615 Opts.addMacroDef(A->getValue()); 3616 else 3617 Opts.addMacroUndef(A->getValue()); 3618 } 3619 3620 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3621 3622 // Add the ordered list of -includes. 3623 for (const auto *A : Args.filtered(OPT_include)) 3624 Opts.Includes.emplace_back(A->getValue()); 3625 3626 for (const auto *A : Args.filtered(OPT_chain_include)) 3627 Opts.ChainedIncludes.emplace_back(A->getValue()); 3628 3629 for (const auto *A : Args.filtered(OPT_remap_file)) { 3630 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3631 3632 if (Split.second.empty()) { 3633 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3634 continue; 3635 } 3636 3637 Opts.addRemappedFile(Split.first, Split.second); 3638 } 3639 3640 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3641 StringRef Name = A->getValue(); 3642 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3643 .Case("libc++", ARCXX_libcxx) 3644 .Case("libstdc++", ARCXX_libstdcxx) 3645 .Case("none", ARCXX_nolib) 3646 .Default(~0U); 3647 if (Library == ~0U) 3648 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3649 else 3650 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3651 } 3652 3653 // Always avoid lexing editor placeholders when we're just running the 3654 // preprocessor as we never want to emit the 3655 // "editor placeholder in source file" error in PP only mode. 3656 if (isStrictlyPreprocessorAction(Action)) 3657 Opts.LexEditorPlaceholders = false; 3658 3659 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3660 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3661 } 3662 3663 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3664 ArgList &Args, 3665 frontend::ActionKind Action) { 3666 if (isStrictlyPreprocessorAction(Action)) 3667 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3668 else 3669 Opts.ShowCPP = 0; 3670 3671 Opts.ShowComments = Args.hasArg(OPT_C); 3672 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3673 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3674 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3675 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3676 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3677 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3678 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3679 } 3680 3681 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3682 DiagnosticsEngine &Diags) { 3683 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3684 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3685 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3686 StringRef Value = A->getValue(); 3687 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3688 .Case("default", llvm::EABI::Default) 3689 .Case("4", llvm::EABI::EABI4) 3690 .Case("5", llvm::EABI::EABI5) 3691 .Case("gnu", llvm::EABI::GNU) 3692 .Default(llvm::EABI::Unknown); 3693 if (EABIVersion == llvm::EABI::Unknown) 3694 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3695 << Value; 3696 else 3697 Opts.EABIVersion = EABIVersion; 3698 } 3699 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3700 Opts.TuneCPU = std::string(Args.getLastArgValue(OPT_tune_cpu)); 3701 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3702 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3703 Opts.LinkerVersion = 3704 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3705 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3706 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3707 Opts.NVPTXUseShortPointers = Args.hasFlag( 3708 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3709 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3710 llvm::VersionTuple Version; 3711 if (Version.tryParse(A->getValue())) 3712 Diags.Report(diag::err_drv_invalid_value) 3713 << A->getAsString(Args) << A->getValue(); 3714 else 3715 Opts.SDKVersion = Version; 3716 } 3717 } 3718 3719 bool CompilerInvocation::parseSimpleArgs(const ArgList &Args, 3720 DiagnosticsEngine &Diags) { 3721 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 3722 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 3723 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 3724 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 3725 this->KEYPATH = Args.hasArg(OPT_##ID) && IS_POSITIVE; 3726 3727 #define OPTION_WITH_MARSHALLING_STRING( \ 3728 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3729 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3730 TYPE, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 3731 { \ 3732 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, Args, Diags)) \ 3733 this->KEYPATH = static_cast<TYPE>(*MaybeValue); \ 3734 else \ 3735 this->KEYPATH = DEFAULT_VALUE; \ 3736 } 3737 3738 #include "clang/Driver/Options.inc" 3739 #undef OPTION_WITH_MARSHALLING_STRING 3740 #undef OPTION_WITH_MARSHALLING_FLAG 3741 return true; 3742 } 3743 3744 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3745 ArrayRef<const char *> CommandLineArgs, 3746 DiagnosticsEngine &Diags, 3747 const char *Argv0) { 3748 bool Success = true; 3749 3750 // Parse the arguments. 3751 const OptTable &Opts = getDriverOptTable(); 3752 const unsigned IncludedFlagsBitmask = options::CC1Option; 3753 unsigned MissingArgIndex, MissingArgCount; 3754 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3755 MissingArgCount, IncludedFlagsBitmask); 3756 LangOptions &LangOpts = *Res.getLangOpts(); 3757 3758 // Check for missing argument error. 3759 if (MissingArgCount) { 3760 Diags.Report(diag::err_drv_missing_argument) 3761 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3762 Success = false; 3763 } 3764 3765 // Issue errors on unknown arguments. 3766 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3767 auto ArgString = A->getAsString(Args); 3768 std::string Nearest; 3769 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3770 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3771 else 3772 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3773 << ArgString << Nearest; 3774 Success = false; 3775 } 3776 3777 Success &= Res.parseSimpleArgs(Args, Diags); 3778 3779 llvm::sys::Process::UseANSIEscapeCodes( 3780 Res.DiagnosticOpts->UseANSIEscapeCodes); 3781 3782 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3783 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3784 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3785 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3786 Res.getDependencyOutputOpts().Targets.empty()) { 3787 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3788 Success = false; 3789 } 3790 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3791 /*DefaultDiagColor=*/false); 3792 ParseCommentArgs(LangOpts.CommentOpts, Args); 3793 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3794 // FIXME: We shouldn't have to pass the DashX option around here 3795 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3796 LangOpts.IsHeaderFile); 3797 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3798 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3799 Res.getTargetOpts(), Res.getFrontendOpts()); 3800 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3801 Res.getFileSystemOpts().WorkingDir); 3802 llvm::Triple T(Res.getTargetOpts().Triple); 3803 if (DashX.getFormat() == InputKind::Precompiled || 3804 DashX.getLanguage() == Language::LLVM_IR) { 3805 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3806 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3807 // what the input type is. 3808 if (Args.hasArg(OPT_fobjc_arc)) 3809 LangOpts.ObjCAutoRefCount = 1; 3810 // PIClevel and PIELevel are needed during code generation and this should be 3811 // set regardless of the input type. 3812 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3813 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3814 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3815 Diags, LangOpts.Sanitize); 3816 } else { 3817 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3818 // FIXME: Should we really be calling this for an Language::Asm input? 3819 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3820 Res.getPreprocessorOpts(), Diags); 3821 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3822 LangOpts.ObjCExceptions = 1; 3823 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3824 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3825 // preprocessed input as we don't expect it to be used with -std=libc++ 3826 // anyway. 3827 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3828 } 3829 } 3830 3831 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3832 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3833 3834 LangOpts.FunctionAlignment = 3835 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3836 3837 if (LangOpts.CUDA) { 3838 // During CUDA device-side compilation, the aux triple is the 3839 // triple used for host compilation. 3840 if (LangOpts.CUDAIsDevice) 3841 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3842 } 3843 3844 // Set the triple of the host for OpenMP device compile. 3845 if (LangOpts.OpenMPIsDevice) 3846 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3847 3848 // FIXME: Override value name discarding when asan or msan is used because the 3849 // backend passes depend on the name of the alloca in order to print out 3850 // names. 3851 Res.getCodeGenOpts().DiscardValueNames &= 3852 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3853 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3854 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3855 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3856 3857 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3858 Res.getFrontendOpts().ProgramAction); 3859 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3860 Res.getFrontendOpts().ProgramAction); 3861 3862 // Turn on -Wspir-compat for SPIR target. 3863 if (T.isSPIR()) 3864 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3865 3866 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3867 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3868 !Res.getLangOpts()->Sanitize.empty()) { 3869 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3870 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3871 } 3872 3873 // Store the command-line for using in the CodeView backend. 3874 Res.getCodeGenOpts().Argv0 = Argv0; 3875 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 3876 3877 return Success; 3878 } 3879 3880 std::string CompilerInvocation::getModuleHash() const { 3881 // Note: For QoI reasons, the things we use as a hash here should all be 3882 // dumped via the -module-info flag. 3883 using llvm::hash_code; 3884 using llvm::hash_value; 3885 using llvm::hash_combine; 3886 using llvm::hash_combine_range; 3887 3888 // Start the signature with the compiler version. 3889 // FIXME: We'd rather use something more cryptographically sound than 3890 // CityHash, but this will do for now. 3891 hash_code code = hash_value(getClangFullRepositoryVersion()); 3892 3893 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3894 // and getClangFullRepositoryVersion() doesn't include git revision. 3895 code = hash_combine(code, serialization::VERSION_MAJOR, 3896 serialization::VERSION_MINOR); 3897 3898 // Extend the signature with the language options 3899 #define LANGOPT(Name, Bits, Default, Description) \ 3900 code = hash_combine(code, LangOpts->Name); 3901 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3902 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3903 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3904 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3905 #include "clang/Basic/LangOptions.def" 3906 3907 for (StringRef Feature : LangOpts->ModuleFeatures) 3908 code = hash_combine(code, Feature); 3909 3910 code = hash_combine(code, LangOpts->ObjCRuntime); 3911 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 3912 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 3913 3914 // Extend the signature with the target options. 3915 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3916 TargetOpts->TuneCPU, TargetOpts->ABI); 3917 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3918 code = hash_combine(code, FeatureAsWritten); 3919 3920 // Extend the signature with preprocessor options. 3921 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3922 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3923 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3924 3925 for (const auto &I : getPreprocessorOpts().Macros) { 3926 // If we're supposed to ignore this macro for the purposes of modules, 3927 // don't put it into the hash. 3928 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3929 // Check whether we're ignoring this macro. 3930 StringRef MacroDef = I.first; 3931 if (hsOpts.ModulesIgnoreMacros.count( 3932 llvm::CachedHashString(MacroDef.split('=').first))) 3933 continue; 3934 } 3935 3936 code = hash_combine(code, I.first, I.second); 3937 } 3938 3939 // Extend the signature with the sysroot and other header search options. 3940 code = hash_combine(code, hsOpts.Sysroot, 3941 hsOpts.ModuleFormat, 3942 hsOpts.UseDebugInfo, 3943 hsOpts.UseBuiltinIncludes, 3944 hsOpts.UseStandardSystemIncludes, 3945 hsOpts.UseStandardCXXIncludes, 3946 hsOpts.UseLibcxx, 3947 hsOpts.ModulesValidateDiagnosticOptions); 3948 code = hash_combine(code, hsOpts.ResourceDir); 3949 3950 if (hsOpts.ModulesStrictContextHash) { 3951 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3952 hsOpts.SystemHeaderPrefixes.end()); 3953 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3954 hsOpts.UserEntries.end()); 3955 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3956 hsOpts.UserEntries.size(), UEC); 3957 3958 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3959 #define DIAGOPT(Name, Bits, Default) \ 3960 code = hash_combine(code, diagOpts.Name); 3961 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3962 code = hash_combine(code, diagOpts.get##Name()); 3963 #include "clang/Basic/DiagnosticOptions.def" 3964 #undef DIAGOPT 3965 #undef ENUM_DIAGOPT 3966 } 3967 3968 // Extend the signature with the user build path. 3969 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3970 3971 // Extend the signature with the module file extensions. 3972 const FrontendOptions &frontendOpts = getFrontendOpts(); 3973 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3974 code = ext->hashExtension(code); 3975 } 3976 3977 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3978 // affects the debug info in the PCM. 3979 if (getCodeGenOpts().DebugTypeExtRefs) 3980 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3981 code = hash_combine(code, KeyValue.first, KeyValue.second); 3982 3983 // Extend the signature with the enabled sanitizers, if at least one is 3984 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3985 SanitizerSet SanHash = LangOpts->Sanitize; 3986 SanHash.clear(getPPTransparentSanitizers()); 3987 if (!SanHash.empty()) 3988 code = hash_combine(code, SanHash.Mask); 3989 3990 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3991 } 3992 3993 void CompilerInvocation::generateCC1CommandLine( 3994 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 3995 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 3996 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 3997 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 3998 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 3999 if ((FLAGS) & options::CC1Option && \ 4000 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) \ 4001 Args.push_back(SPELLING); 4002 4003 #define OPTION_WITH_MARSHALLING_STRING( \ 4004 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4005 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4006 NORMALIZER_RET_TY, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 4007 if (((FLAGS) & options::CC1Option) && \ 4008 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) { \ 4009 if (Option::KIND##Class == Option::SeparateClass) { \ 4010 Args.push_back(SPELLING); \ 4011 Args.push_back(DENORMALIZER(SA, TABLE_INDEX, this->KEYPATH)); \ 4012 } \ 4013 } 4014 4015 #include "clang/Driver/Options.inc" 4016 #undef OPTION_WITH_MARSHALLING_STRING 4017 #undef OPTION_WITH_MARSHALLING_FLAG 4018 } 4019 4020 namespace clang { 4021 4022 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4023 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4024 DiagnosticsEngine &Diags) { 4025 return createVFSFromCompilerInvocation(CI, Diags, 4026 llvm::vfs::getRealFileSystem()); 4027 } 4028 4029 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 4030 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4031 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4032 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4033 return BaseFS; 4034 4035 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4036 // earlier vfs files are on the bottom 4037 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4038 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4039 Result->getBufferForFile(File); 4040 if (!Buffer) { 4041 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4042 continue; 4043 } 4044 4045 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4046 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4047 /*DiagContext*/ nullptr, Result); 4048 if (!FS) { 4049 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4050 continue; 4051 } 4052 4053 Result = FS; 4054 } 4055 return Result; 4056 } 4057 4058 } // namespace clang 4059