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, 1174 OPT_compress_debug_sections_EQ)) { 1175 if (A->getOption().getID() == OPT_compress_debug_sections) { 1176 Opts.setCompressDebugSections(llvm::DebugCompressionType::Z); 1177 } else { 1178 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1179 .Case("none", llvm::DebugCompressionType::None) 1180 .Case("zlib", llvm::DebugCompressionType::Z) 1181 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1182 .Default(llvm::DebugCompressionType::None); 1183 Opts.setCompressDebugSections(DCT); 1184 } 1185 } 1186 1187 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1188 Opts.DebugCompilationDir = 1189 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1190 for (auto *A : 1191 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1192 CodeGenOptions::BitcodeFileToLink F; 1193 F.Filename = A->getValue(); 1194 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1195 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1196 // When linking CUDA bitcode, propagate function attributes so that 1197 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1198 F.PropagateAttrs = true; 1199 F.Internalize = true; 1200 } 1201 Opts.LinkBitcodeFiles.push_back(F); 1202 } 1203 Opts.SanitizeCoverageType = 1204 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1205 Opts.SanitizeCoverageIndirectCalls = 1206 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1207 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1208 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1209 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1210 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1211 Opts.SanitizeCoverage8bitCounters = 1212 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1213 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1214 Opts.SanitizeCoverageTracePCGuard = 1215 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1216 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1217 Opts.SanitizeCoverageInline8bitCounters = 1218 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1219 Opts.SanitizeCoverageInlineBoolFlag = 1220 Args.hasArg(OPT_fsanitize_coverage_inline_bool_flag); 1221 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1222 Opts.SanitizeCoverageStackDepth = 1223 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1224 Opts.SanitizeCoverageAllowlistFiles = 1225 Args.getAllArgValues(OPT_fsanitize_coverage_allowlist); 1226 Opts.SanitizeCoverageBlocklistFiles = 1227 Args.getAllArgValues(OPT_fsanitize_coverage_blocklist); 1228 Opts.SanitizeMemoryTrackOrigins = 1229 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1230 Opts.SanitizeMemoryUseAfterDtor = 1231 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1232 OPT_fno_sanitize_memory_use_after_dtor, 1233 false); 1234 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1235 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1236 Opts.SanitizeCfiICallGeneralizePointers = 1237 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1238 Opts.SanitizeCfiCanonicalJumpTables = 1239 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1240 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1241 if (Arg *A = Args.getLastArg( 1242 OPT_fsanitize_address_poison_custom_array_cookie, 1243 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1244 Opts.SanitizeAddressPoisonCustomArrayCookie = 1245 A->getOption().getID() == 1246 OPT_fsanitize_address_poison_custom_array_cookie; 1247 } 1248 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1249 OPT_fno_sanitize_address_use_after_scope)) { 1250 Opts.SanitizeAddressUseAfterScope = 1251 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1252 } 1253 Opts.SanitizeAddressGlobalsDeadStripping = 1254 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1255 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1256 OPT_fno_sanitize_address_use_odr_indicator)) { 1257 Opts.SanitizeAddressUseOdrIndicator = 1258 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1259 } 1260 Opts.SSPBufferSize = 1261 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1262 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1263 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1264 StringRef Val = A->getValue(); 1265 unsigned StackAlignment = Opts.StackAlignment; 1266 Val.getAsInteger(10, StackAlignment); 1267 Opts.StackAlignment = StackAlignment; 1268 } 1269 1270 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1271 StringRef Val = A->getValue(); 1272 unsigned StackProbeSize = Opts.StackProbeSize; 1273 Val.getAsInteger(0, StackProbeSize); 1274 Opts.StackProbeSize = StackProbeSize; 1275 } 1276 1277 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1278 1279 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1280 1281 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1282 StringRef Name = A->getValue(); 1283 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1284 .Case("legacy", CodeGenOptions::Legacy) 1285 .Case("non-legacy", CodeGenOptions::NonLegacy) 1286 .Case("mixed", CodeGenOptions::Mixed) 1287 .Default(~0U); 1288 if (Method == ~0U) { 1289 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1290 Success = false; 1291 } else { 1292 Opts.setObjCDispatchMethod( 1293 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1294 } 1295 } 1296 1297 1298 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1299 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1300 1301 if (Args.getLastArg(OPT_femulated_tls) || 1302 Args.getLastArg(OPT_fno_emulated_tls)) { 1303 Opts.ExplicitEmulatedTLS = true; 1304 Opts.EmulatedTLS = 1305 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1306 } 1307 1308 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1309 StringRef Name = A->getValue(); 1310 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1311 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1312 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1313 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1314 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1315 .Default(~0U); 1316 if (Model == ~0U) { 1317 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1318 Success = false; 1319 } else { 1320 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1321 } 1322 } 1323 1324 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1325 1326 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1327 StringRef Val = A->getValue(); 1328 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1329 if (!Opts.FPDenormalMode.isValid()) 1330 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1331 } 1332 1333 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1334 StringRef Val = A->getValue(); 1335 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1336 if (!Opts.FP32DenormalMode.isValid()) 1337 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1338 } 1339 1340 // X86_32 has -fppc-struct-return and -freg-struct-return. 1341 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1342 if (Arg *A = 1343 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1344 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1345 // TODO: We might want to consider enabling these options on AIX in the 1346 // future. 1347 if (T.isOSAIX()) 1348 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1349 << A->getSpelling() << T.str(); 1350 1351 const Option &O = A->getOption(); 1352 if (O.matches(OPT_fpcc_struct_return) || 1353 O.matches(OPT_maix_struct_return)) { 1354 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1355 } else { 1356 assert(O.matches(OPT_freg_struct_return) || 1357 O.matches(OPT_msvr4_struct_return)); 1358 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1359 } 1360 } 1361 1362 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 1363 !Args.hasArg(OPT_fvisibility))) 1364 Opts.IgnoreXCOFFVisibility = 1; 1365 1366 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1367 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1368 bool NeedLocTracking = false; 1369 1370 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1371 if (!Opts.OptRecordFile.empty()) 1372 NeedLocTracking = true; 1373 1374 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1375 Opts.OptRecordPasses = A->getValue(); 1376 NeedLocTracking = true; 1377 } 1378 1379 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1380 Opts.OptRecordFormat = A->getValue(); 1381 NeedLocTracking = true; 1382 } 1383 1384 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1385 Opts.OptimizationRemarkPattern = 1386 GenerateOptimizationRemarkRegex(Diags, Args, A); 1387 NeedLocTracking = true; 1388 } 1389 1390 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1391 Opts.OptimizationRemarkMissedPattern = 1392 GenerateOptimizationRemarkRegex(Diags, Args, A); 1393 NeedLocTracking = true; 1394 } 1395 1396 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1397 Opts.OptimizationRemarkAnalysisPattern = 1398 GenerateOptimizationRemarkRegex(Diags, Args, A); 1399 NeedLocTracking = true; 1400 } 1401 1402 Opts.DiagnosticsWithHotness = 1403 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1404 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1405 bool UsingProfile = UsingSampleProfile || 1406 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1407 1408 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1409 // An IR file will contain PGO as metadata 1410 IK.getLanguage() != Language::LLVM_IR) 1411 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1412 << "-fdiagnostics-show-hotness"; 1413 1414 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1415 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1416 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1417 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1418 << "-fdiagnostics-hotness-threshold="; 1419 1420 // If the user requested to use a sample profile for PGO, then the 1421 // backend will need to track source location information so the profile 1422 // can be incorporated into the IR. 1423 if (UsingSampleProfile) 1424 NeedLocTracking = true; 1425 1426 // If the user requested a flag that requires source locations available in 1427 // the backend, make sure that the backend tracks source location information. 1428 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1429 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1430 1431 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1432 1433 // Parse -fsanitize-recover= arguments. 1434 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1435 parseSanitizerKinds("-fsanitize-recover=", 1436 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1437 Opts.SanitizeRecover); 1438 parseSanitizerKinds("-fsanitize-trap=", 1439 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1440 Opts.SanitizeTrap); 1441 1442 Opts.CudaGpuBinaryFileName = 1443 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1444 1445 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1446 1447 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1448 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1449 1450 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1451 1452 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1453 1454 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1455 1456 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1457 1458 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1459 1460 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1461 1462 Opts.SymbolPartition = 1463 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1464 1465 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1466 Opts.AAPCSBitfieldWidth = 1467 Args.hasFlag(OPT_AAPCSBitfieldWidth, OPT_ForceNoAAPCSBitfieldWidth, true); 1468 1469 Opts.PassByValueIsNoAlias = Args.hasArg(OPT_fpass_by_value_is_noalias); 1470 1471 return Success; 1472 } 1473 1474 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1475 ArgList &Args) { 1476 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1477 Opts.Targets = Args.getAllArgValues(OPT_MT); 1478 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1479 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1480 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1481 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1482 Opts.HeaderIncludeOutputFile = 1483 std::string(Args.getLastArgValue(OPT_header_include_file)); 1484 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1485 if (Args.hasArg(OPT_show_includes)) { 1486 // Writing both /showIncludes and preprocessor output to stdout 1487 // would produce interleaved output, so use stderr for /showIncludes. 1488 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1489 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1490 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1491 else 1492 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1493 } else { 1494 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1495 } 1496 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1497 Opts.ModuleDependencyOutputDir = 1498 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1499 if (Args.hasArg(OPT_MV)) 1500 Opts.OutputFormat = DependencyOutputFormat::NMake; 1501 // Add sanitizer blacklists as extra dependencies. 1502 // They won't be discovered by the regular preprocessor, so 1503 // we let make / ninja to know about this implicit dependency. 1504 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1505 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1506 StringRef Val = A->getValue(); 1507 if (Val.find('=') == StringRef::npos) 1508 Opts.ExtraDeps.push_back(std::string(Val)); 1509 } 1510 if (Opts.IncludeSystemHeaders) { 1511 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1512 StringRef Val = A->getValue(); 1513 if (Val.find('=') == StringRef::npos) 1514 Opts.ExtraDeps.push_back(std::string(Val)); 1515 } 1516 } 1517 } 1518 1519 // Propagate the extra dependencies. 1520 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1521 Opts.ExtraDeps.push_back(A->getValue()); 1522 } 1523 1524 // Only the -fmodule-file=<file> form. 1525 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1526 StringRef Val = A->getValue(); 1527 if (Val.find('=') == StringRef::npos) 1528 Opts.ExtraDeps.push_back(std::string(Val)); 1529 } 1530 } 1531 1532 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1533 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1534 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1535 // Support both clang's -f[no-]color-diagnostics and gcc's 1536 // -f[no-]diagnostics-colors[=never|always|auto]. 1537 enum { 1538 Colors_On, 1539 Colors_Off, 1540 Colors_Auto 1541 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1542 for (auto *A : Args) { 1543 const Option &O = A->getOption(); 1544 if (O.matches(options::OPT_fcolor_diagnostics) || 1545 O.matches(options::OPT_fdiagnostics_color)) { 1546 ShowColors = Colors_On; 1547 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1548 O.matches(options::OPT_fno_diagnostics_color)) { 1549 ShowColors = Colors_Off; 1550 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1551 StringRef Value(A->getValue()); 1552 if (Value == "always") 1553 ShowColors = Colors_On; 1554 else if (Value == "never") 1555 ShowColors = Colors_Off; 1556 else if (Value == "auto") 1557 ShowColors = Colors_Auto; 1558 } 1559 } 1560 return ShowColors == Colors_On || 1561 (ShowColors == Colors_Auto && 1562 llvm::sys::Process::StandardErrHasColors()); 1563 } 1564 1565 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1566 DiagnosticsEngine *Diags) { 1567 bool Success = true; 1568 for (const auto &Prefix : VerifyPrefixes) { 1569 // Every prefix must start with a letter and contain only alphanumeric 1570 // characters, hyphens, and underscores. 1571 auto BadChar = llvm::find_if(Prefix, [](char C) { 1572 return !isAlphanumeric(C) && C != '-' && C != '_'; 1573 }); 1574 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1575 Success = false; 1576 if (Diags) { 1577 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1578 Diags->Report(diag::note_drv_verify_prefix_spelling); 1579 } 1580 } 1581 } 1582 return Success; 1583 } 1584 1585 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1586 DiagnosticsEngine *Diags, 1587 bool DefaultDiagColor) { 1588 bool Success = true; 1589 1590 Opts.DiagnosticLogFile = 1591 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1592 if (Arg *A = 1593 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1594 Opts.DiagnosticSerializationFile = A->getValue(); 1595 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1596 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1597 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1598 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1599 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1600 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1601 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1602 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1603 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1604 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1605 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1606 1607 // Default behavior is to not to show note include stacks. 1608 Opts.ShowNoteIncludeStack = false; 1609 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1610 OPT_fno_diagnostics_show_note_include_stack)) 1611 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1612 Opts.ShowNoteIncludeStack = true; 1613 1614 StringRef ShowOverloads = 1615 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1616 if (ShowOverloads == "best") 1617 Opts.setShowOverloads(Ovl_Best); 1618 else if (ShowOverloads == "all") 1619 Opts.setShowOverloads(Ovl_All); 1620 else { 1621 Success = false; 1622 if (Diags) 1623 Diags->Report(diag::err_drv_invalid_value) 1624 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1625 << ShowOverloads; 1626 } 1627 1628 StringRef ShowCategory = 1629 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1630 if (ShowCategory == "none") 1631 Opts.ShowCategories = 0; 1632 else if (ShowCategory == "id") 1633 Opts.ShowCategories = 1; 1634 else if (ShowCategory == "name") 1635 Opts.ShowCategories = 2; 1636 else { 1637 Success = false; 1638 if (Diags) 1639 Diags->Report(diag::err_drv_invalid_value) 1640 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1641 << ShowCategory; 1642 } 1643 1644 StringRef Format = 1645 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1646 if (Format == "clang") 1647 Opts.setFormat(DiagnosticOptions::Clang); 1648 else if (Format == "msvc") 1649 Opts.setFormat(DiagnosticOptions::MSVC); 1650 else if (Format == "msvc-fallback") { 1651 Opts.setFormat(DiagnosticOptions::MSVC); 1652 Opts.CLFallbackMode = true; 1653 } else if (Format == "vi") 1654 Opts.setFormat(DiagnosticOptions::Vi); 1655 else { 1656 Success = false; 1657 if (Diags) 1658 Diags->Report(diag::err_drv_invalid_value) 1659 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1660 << Format; 1661 } 1662 1663 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1664 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1665 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1666 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1667 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1668 if (Args.hasArg(OPT_verify)) 1669 Opts.VerifyPrefixes.push_back("expected"); 1670 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1671 // then sort it to prepare for fast lookup using std::binary_search. 1672 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1673 Opts.VerifyDiagnostics = false; 1674 Success = false; 1675 } 1676 else 1677 llvm::sort(Opts.VerifyPrefixes); 1678 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1679 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1680 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1681 Diags, DiagMask); 1682 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1683 DiagMask = DiagnosticLevelMask::All; 1684 Opts.setVerifyIgnoreUnexpected(DiagMask); 1685 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1686 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1687 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1688 Opts.MacroBacktraceLimit = 1689 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1690 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1691 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1692 Args, OPT_ftemplate_backtrace_limit, 1693 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1694 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1695 Args, OPT_fconstexpr_backtrace_limit, 1696 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1697 Opts.SpellCheckingLimit = getLastArgIntValue( 1698 Args, OPT_fspell_checking_limit, 1699 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1700 Opts.SnippetLineLimit = getLastArgIntValue( 1701 Args, OPT_fcaret_diagnostics_max_lines, 1702 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1703 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1704 DiagnosticOptions::DefaultTabStop, Diags); 1705 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1706 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1707 if (Diags) 1708 Diags->Report(diag::warn_ignoring_ftabstop_value) 1709 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1710 } 1711 Opts.MessageLength = 1712 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1713 1714 Opts.UndefPrefixes = Args.getAllArgValues(OPT_Wundef_prefix_EQ); 1715 1716 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1717 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1718 1719 return Success; 1720 } 1721 1722 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1723 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1724 } 1725 1726 /// Parse the argument to the -ftest-module-file-extension 1727 /// command-line argument. 1728 /// 1729 /// \returns true on error, false on success. 1730 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1731 std::string &BlockName, 1732 unsigned &MajorVersion, 1733 unsigned &MinorVersion, 1734 bool &Hashed, 1735 std::string &UserInfo) { 1736 SmallVector<StringRef, 5> Args; 1737 Arg.split(Args, ':', 5); 1738 if (Args.size() < 5) 1739 return true; 1740 1741 BlockName = std::string(Args[0]); 1742 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1743 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1744 if (Args[3].getAsInteger(2, Hashed)) return true; 1745 if (Args.size() > 4) 1746 UserInfo = std::string(Args[4]); 1747 return false; 1748 } 1749 1750 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1751 DiagnosticsEngine &Diags, 1752 bool &IsHeaderFile) { 1753 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1754 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1755 switch (A->getOption().getID()) { 1756 default: 1757 llvm_unreachable("Invalid option in group!"); 1758 case OPT_ast_list: 1759 Opts.ProgramAction = frontend::ASTDeclList; break; 1760 case OPT_ast_dump_all_EQ: 1761 case OPT_ast_dump_EQ: { 1762 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1763 .CaseLower("default", ADOF_Default) 1764 .CaseLower("json", ADOF_JSON) 1765 .Default(std::numeric_limits<unsigned>::max()); 1766 1767 if (Val != std::numeric_limits<unsigned>::max()) 1768 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1769 else { 1770 Diags.Report(diag::err_drv_invalid_value) 1771 << A->getAsString(Args) << A->getValue(); 1772 Opts.ASTDumpFormat = ADOF_Default; 1773 } 1774 LLVM_FALLTHROUGH; 1775 } 1776 case OPT_ast_dump: 1777 case OPT_ast_dump_all: 1778 case OPT_ast_dump_lookups: 1779 case OPT_ast_dump_decl_types: 1780 Opts.ProgramAction = frontend::ASTDump; break; 1781 case OPT_ast_print: 1782 Opts.ProgramAction = frontend::ASTPrint; break; 1783 case OPT_ast_view: 1784 Opts.ProgramAction = frontend::ASTView; break; 1785 case OPT_compiler_options_dump: 1786 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1787 case OPT_dump_raw_tokens: 1788 Opts.ProgramAction = frontend::DumpRawTokens; break; 1789 case OPT_dump_tokens: 1790 Opts.ProgramAction = frontend::DumpTokens; break; 1791 case OPT_S: 1792 Opts.ProgramAction = frontend::EmitAssembly; break; 1793 case OPT_emit_llvm_bc: 1794 Opts.ProgramAction = frontend::EmitBC; break; 1795 case OPT_emit_html: 1796 Opts.ProgramAction = frontend::EmitHTML; break; 1797 case OPT_emit_llvm: 1798 Opts.ProgramAction = frontend::EmitLLVM; break; 1799 case OPT_emit_llvm_only: 1800 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1801 case OPT_emit_codegen_only: 1802 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1803 case OPT_emit_obj: 1804 Opts.ProgramAction = frontend::EmitObj; break; 1805 case OPT_fixit_EQ: 1806 Opts.FixItSuffix = A->getValue(); 1807 LLVM_FALLTHROUGH; 1808 case OPT_fixit: 1809 Opts.ProgramAction = frontend::FixIt; break; 1810 case OPT_emit_module: 1811 Opts.ProgramAction = frontend::GenerateModule; break; 1812 case OPT_emit_module_interface: 1813 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1814 case OPT_emit_header_module: 1815 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1816 case OPT_emit_pch: 1817 Opts.ProgramAction = frontend::GeneratePCH; break; 1818 case OPT_emit_interface_stubs: { 1819 StringRef ArgStr = 1820 Args.hasArg(OPT_interface_stub_version_EQ) 1821 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1822 : "experimental-ifs-v2"; 1823 if (ArgStr == "experimental-yaml-elf-v1" || 1824 ArgStr == "experimental-ifs-v1" || 1825 ArgStr == "experimental-tapi-elf-v1") { 1826 std::string ErrorMessage = 1827 "Invalid interface stub format: " + ArgStr.str() + 1828 " is deprecated."; 1829 Diags.Report(diag::err_drv_invalid_value) 1830 << "Must specify a valid interface stub format type, ie: " 1831 "-interface-stub-version=experimental-ifs-v2" 1832 << ErrorMessage; 1833 } else if (!ArgStr.startswith("experimental-ifs-")) { 1834 std::string ErrorMessage = 1835 "Invalid interface stub format: " + ArgStr.str() + "."; 1836 Diags.Report(diag::err_drv_invalid_value) 1837 << "Must specify a valid interface stub format type, ie: " 1838 "-interface-stub-version=experimental-ifs-v2" 1839 << ErrorMessage; 1840 } else { 1841 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1842 } 1843 break; 1844 } 1845 case OPT_init_only: 1846 Opts.ProgramAction = frontend::InitOnly; break; 1847 case OPT_fsyntax_only: 1848 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1849 case OPT_module_file_info: 1850 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1851 case OPT_verify_pch: 1852 Opts.ProgramAction = frontend::VerifyPCH; break; 1853 case OPT_print_preamble: 1854 Opts.ProgramAction = frontend::PrintPreamble; break; 1855 case OPT_E: 1856 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1857 case OPT_templight_dump: 1858 Opts.ProgramAction = frontend::TemplightDump; break; 1859 case OPT_rewrite_macros: 1860 Opts.ProgramAction = frontend::RewriteMacros; break; 1861 case OPT_rewrite_objc: 1862 Opts.ProgramAction = frontend::RewriteObjC; break; 1863 case OPT_rewrite_test: 1864 Opts.ProgramAction = frontend::RewriteTest; break; 1865 case OPT_analyze: 1866 Opts.ProgramAction = frontend::RunAnalysis; break; 1867 case OPT_migrate: 1868 Opts.ProgramAction = frontend::MigrateSource; break; 1869 case OPT_Eonly: 1870 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1871 case OPT_print_dependency_directives_minimized_source: 1872 Opts.ProgramAction = 1873 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1874 break; 1875 } 1876 } 1877 1878 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1879 Opts.Plugins.emplace_back(A->getValue(0)); 1880 Opts.ProgramAction = frontend::PluginAction; 1881 Opts.ActionName = A->getValue(); 1882 } 1883 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1884 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1885 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1886 1887 for (const std::string &Arg : 1888 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1889 std::string BlockName; 1890 unsigned MajorVersion; 1891 unsigned MinorVersion; 1892 bool Hashed; 1893 std::string UserInfo; 1894 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1895 MinorVersion, Hashed, UserInfo)) { 1896 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1897 1898 continue; 1899 } 1900 1901 // Add the testing module file extension. 1902 Opts.ModuleFileExtensions.push_back( 1903 std::make_shared<TestModuleFileExtension>( 1904 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1905 } 1906 1907 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1908 Opts.CodeCompletionAt = 1909 ParsedSourceLocation::FromString(A->getValue()); 1910 if (Opts.CodeCompletionAt.FileName.empty()) 1911 Diags.Report(diag::err_drv_invalid_value) 1912 << A->getAsString(Args) << A->getValue(); 1913 } 1914 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1915 1916 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1917 Opts.Plugins = Args.getAllArgValues(OPT_load); 1918 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1919 Opts.ShowHelp = Args.hasArg(OPT_help); 1920 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1921 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1922 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1923 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1924 Opts.TimeTraceGranularity = getLastArgIntValue( 1925 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1926 Opts.ShowVersion = Args.hasArg(OPT_version); 1927 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1928 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1929 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1930 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1931 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1932 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1933 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1934 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1935 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1936 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1937 Opts.ASTDumpDeclTypes = Args.hasArg(OPT_ast_dump_decl_types); 1938 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1939 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1940 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1941 // Only the -fmodule-file=<file> form. 1942 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1943 StringRef Val = A->getValue(); 1944 if (Val.find('=') == StringRef::npos) 1945 Opts.ModuleFiles.push_back(std::string(Val)); 1946 } 1947 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1948 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1949 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1950 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1951 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 1952 1953 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1954 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1955 << "-emit-module"; 1956 1957 Opts.CodeCompleteOpts.IncludeMacros 1958 = Args.hasArg(OPT_code_completion_macros); 1959 Opts.CodeCompleteOpts.IncludeCodePatterns 1960 = Args.hasArg(OPT_code_completion_patterns); 1961 Opts.CodeCompleteOpts.IncludeGlobals 1962 = !Args.hasArg(OPT_no_code_completion_globals); 1963 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1964 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1965 Opts.CodeCompleteOpts.IncludeBriefComments 1966 = Args.hasArg(OPT_code_completion_brief_comments); 1967 Opts.CodeCompleteOpts.IncludeFixIts 1968 = Args.hasArg(OPT_code_completion_with_fixits); 1969 1970 Opts.OverrideRecordLayoutsFile = 1971 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1972 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1973 if (Args.hasArg(OPT_aux_target_cpu)) 1974 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1975 if (Args.hasArg(OPT_aux_target_feature)) 1976 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1977 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1978 1979 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1980 OPT_arcmt_modify, 1981 OPT_arcmt_migrate)) { 1982 switch (A->getOption().getID()) { 1983 default: 1984 llvm_unreachable("missed a case"); 1985 case OPT_arcmt_check: 1986 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1987 break; 1988 case OPT_arcmt_modify: 1989 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1990 break; 1991 case OPT_arcmt_migrate: 1992 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1993 break; 1994 } 1995 } 1996 Opts.MTMigrateDir = 1997 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1998 Opts.ARCMTMigrateReportOut = 1999 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 2000 Opts.ARCMTMigrateEmitARCErrors 2001 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 2002 2003 if (Args.hasArg(OPT_objcmt_migrate_literals)) 2004 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 2005 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 2006 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 2007 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 2008 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 2009 if (Args.hasArg(OPT_objcmt_migrate_property)) 2010 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 2011 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 2012 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 2013 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 2014 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 2015 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 2016 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 2017 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 2018 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 2019 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 2020 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 2021 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 2022 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 2023 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 2024 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 2025 if (Args.hasArg(OPT_objcmt_atomic_property)) 2026 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 2027 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 2028 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 2029 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 2030 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 2031 if (Args.hasArg(OPT_objcmt_migrate_all)) 2032 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 2033 2034 Opts.ObjCMTWhiteListPath = 2035 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 2036 2037 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2038 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2039 Diags.Report(diag::err_drv_argument_not_allowed_with) 2040 << "ARC migration" << "ObjC migration"; 2041 } 2042 2043 InputKind DashX(Language::Unknown); 2044 if (const Arg *A = Args.getLastArg(OPT_x)) { 2045 StringRef XValue = A->getValue(); 2046 2047 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2048 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2049 bool Preprocessed = XValue.consume_back("-cpp-output"); 2050 bool ModuleMap = XValue.consume_back("-module-map"); 2051 IsHeaderFile = !Preprocessed && !ModuleMap && 2052 XValue != "precompiled-header" && 2053 XValue.consume_back("-header"); 2054 2055 // Principal languages. 2056 DashX = llvm::StringSwitch<InputKind>(XValue) 2057 .Case("c", Language::C) 2058 .Case("cl", Language::OpenCL) 2059 .Case("cuda", Language::CUDA) 2060 .Case("hip", Language::HIP) 2061 .Case("c++", Language::CXX) 2062 .Case("objective-c", Language::ObjC) 2063 .Case("objective-c++", Language::ObjCXX) 2064 .Case("renderscript", Language::RenderScript) 2065 .Default(Language::Unknown); 2066 2067 // "objc[++]-cpp-output" is an acceptable synonym for 2068 // "objective-c[++]-cpp-output". 2069 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2070 DashX = llvm::StringSwitch<InputKind>(XValue) 2071 .Case("objc", Language::ObjC) 2072 .Case("objc++", Language::ObjCXX) 2073 .Default(Language::Unknown); 2074 2075 // Some special cases cannot be combined with suffixes. 2076 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2077 DashX = llvm::StringSwitch<InputKind>(XValue) 2078 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2079 .Case("assembler-with-cpp", Language::Asm) 2080 .Cases("ast", "pcm", "precompiled-header", 2081 InputKind(Language::Unknown, InputKind::Precompiled)) 2082 .Case("ir", Language::LLVM_IR) 2083 .Default(Language::Unknown); 2084 2085 if (DashX.isUnknown()) 2086 Diags.Report(diag::err_drv_invalid_value) 2087 << A->getAsString(Args) << A->getValue(); 2088 2089 if (Preprocessed) 2090 DashX = DashX.getPreprocessed(); 2091 if (ModuleMap) 2092 DashX = DashX.withFormat(InputKind::ModuleMap); 2093 } 2094 2095 // '-' is the default input if none is given. 2096 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2097 Opts.Inputs.clear(); 2098 if (Inputs.empty()) 2099 Inputs.push_back("-"); 2100 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2101 InputKind IK = DashX; 2102 if (IK.isUnknown()) { 2103 IK = FrontendOptions::getInputKindForExtension( 2104 StringRef(Inputs[i]).rsplit('.').second); 2105 // FIXME: Warn on this? 2106 if (IK.isUnknown()) 2107 IK = Language::C; 2108 // FIXME: Remove this hack. 2109 if (i == 0) 2110 DashX = IK; 2111 } 2112 2113 bool IsSystem = false; 2114 2115 // The -emit-module action implicitly takes a module map. 2116 if (Opts.ProgramAction == frontend::GenerateModule && 2117 IK.getFormat() == InputKind::Source) { 2118 IK = IK.withFormat(InputKind::ModuleMap); 2119 IsSystem = Opts.IsSystemModule; 2120 } 2121 2122 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2123 } 2124 2125 return DashX; 2126 } 2127 2128 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2129 void *MainAddr) { 2130 std::string ClangExecutable = 2131 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2132 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2133 } 2134 2135 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2136 const std::string &WorkingDir) { 2137 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2138 Opts.Verbose = Args.hasArg(OPT_v); 2139 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2140 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2141 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2142 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2143 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2144 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2145 2146 // Canonicalize -fmodules-cache-path before storing it. 2147 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2148 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2149 if (WorkingDir.empty()) 2150 llvm::sys::fs::make_absolute(P); 2151 else 2152 llvm::sys::fs::make_absolute(WorkingDir, P); 2153 } 2154 llvm::sys::path::remove_dots(P); 2155 Opts.ModuleCachePath = std::string(P.str()); 2156 2157 Opts.ModuleUserBuildPath = 2158 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2159 // Only the -fmodule-file=<name>=<file> form. 2160 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2161 StringRef Val = A->getValue(); 2162 if (Val.find('=') != StringRef::npos){ 2163 auto Split = Val.split('='); 2164 Opts.PrebuiltModuleFiles.insert( 2165 {std::string(Split.first), std::string(Split.second)}); 2166 } 2167 } 2168 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2169 Opts.AddPrebuiltModulePath(A->getValue()); 2170 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2171 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2172 Opts.ModulesValidateDiagnosticOptions = 2173 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2174 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2175 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2176 Opts.ModuleCachePruneInterval = 2177 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2178 Opts.ModuleCachePruneAfter = 2179 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2180 Opts.ModulesValidateOncePerBuildSession = 2181 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2182 Opts.BuildSessionTimestamp = 2183 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2184 Opts.ModulesValidateSystemHeaders = 2185 Args.hasArg(OPT_fmodules_validate_system_headers); 2186 Opts.ValidateASTInputFilesContent = 2187 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2188 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2189 Opts.ModuleFormat = A->getValue(); 2190 2191 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2192 StringRef MacroDef = A->getValue(); 2193 Opts.ModulesIgnoreMacros.insert( 2194 llvm::CachedHashString(MacroDef.split('=').first)); 2195 } 2196 2197 // Add -I..., -F..., and -index-header-map options in order. 2198 bool IsIndexHeaderMap = false; 2199 bool IsSysrootSpecified = 2200 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2201 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2202 if (A->getOption().matches(OPT_index_header_map)) { 2203 // -index-header-map applies to the next -I or -F. 2204 IsIndexHeaderMap = true; 2205 continue; 2206 } 2207 2208 frontend::IncludeDirGroup Group = 2209 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2210 2211 bool IsFramework = A->getOption().matches(OPT_F); 2212 std::string Path = A->getValue(); 2213 2214 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2215 SmallString<32> Buffer; 2216 llvm::sys::path::append(Buffer, Opts.Sysroot, 2217 llvm::StringRef(A->getValue()).substr(1)); 2218 Path = std::string(Buffer.str()); 2219 } 2220 2221 Opts.AddPath(Path, Group, IsFramework, 2222 /*IgnoreSysroot*/ true); 2223 IsIndexHeaderMap = false; 2224 } 2225 2226 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2227 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2228 for (const auto *A : 2229 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2230 if (A->getOption().matches(OPT_iprefix)) 2231 Prefix = A->getValue(); 2232 else if (A->getOption().matches(OPT_iwithprefix)) 2233 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2234 else 2235 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2236 } 2237 2238 for (const auto *A : Args.filtered(OPT_idirafter)) 2239 Opts.AddPath(A->getValue(), frontend::After, false, true); 2240 for (const auto *A : Args.filtered(OPT_iquote)) 2241 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2242 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2243 Opts.AddPath(A->getValue(), frontend::System, false, 2244 !A->getOption().matches(OPT_iwithsysroot)); 2245 for (const auto *A : Args.filtered(OPT_iframework)) 2246 Opts.AddPath(A->getValue(), frontend::System, true, true); 2247 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2248 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2249 /*IgnoreSysRoot=*/false); 2250 2251 // Add the paths for the various language specific isystem flags. 2252 for (const auto *A : Args.filtered(OPT_c_isystem)) 2253 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2254 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2255 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2256 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2257 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2258 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2259 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2260 2261 // Add the internal paths from a driver that detects standard include paths. 2262 for (const auto *A : 2263 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2264 frontend::IncludeDirGroup Group = frontend::System; 2265 if (A->getOption().matches(OPT_internal_externc_isystem)) 2266 Group = frontend::ExternCSystem; 2267 Opts.AddPath(A->getValue(), Group, false, true); 2268 } 2269 2270 // Add the path prefixes which are implicitly treated as being system headers. 2271 for (const auto *A : 2272 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2273 Opts.AddSystemHeaderPrefix( 2274 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2275 2276 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2277 Opts.AddVFSOverlayFile(A->getValue()); 2278 } 2279 2280 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2281 const llvm::Triple &T, 2282 PreprocessorOptions &PPOpts, 2283 LangStandard::Kind LangStd) { 2284 // Set some properties which depend solely on the input kind; it would be nice 2285 // to move these to the language standard, and have the driver resolve the 2286 // input kind + language standard. 2287 // 2288 // FIXME: Perhaps a better model would be for a single source file to have 2289 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2290 // simultaneously active? 2291 if (IK.getLanguage() == Language::Asm) { 2292 Opts.AsmPreprocessor = 1; 2293 } else if (IK.isObjectiveC()) { 2294 Opts.ObjC = 1; 2295 } 2296 2297 if (LangStd == LangStandard::lang_unspecified) { 2298 // Based on the base language, pick one. 2299 switch (IK.getLanguage()) { 2300 case Language::Unknown: 2301 case Language::LLVM_IR: 2302 llvm_unreachable("Invalid input kind!"); 2303 case Language::OpenCL: 2304 LangStd = LangStandard::lang_opencl10; 2305 break; 2306 case Language::CUDA: 2307 LangStd = LangStandard::lang_cuda; 2308 break; 2309 case Language::Asm: 2310 case Language::C: 2311 #if defined(CLANG_DEFAULT_STD_C) 2312 LangStd = CLANG_DEFAULT_STD_C; 2313 #else 2314 // The PS4 uses C99 as the default C standard. 2315 if (T.isPS4()) 2316 LangStd = LangStandard::lang_gnu99; 2317 else 2318 LangStd = LangStandard::lang_gnu17; 2319 #endif 2320 break; 2321 case Language::ObjC: 2322 #if defined(CLANG_DEFAULT_STD_C) 2323 LangStd = CLANG_DEFAULT_STD_C; 2324 #else 2325 LangStd = LangStandard::lang_gnu11; 2326 #endif 2327 break; 2328 case Language::CXX: 2329 case Language::ObjCXX: 2330 #if defined(CLANG_DEFAULT_STD_CXX) 2331 LangStd = CLANG_DEFAULT_STD_CXX; 2332 #else 2333 LangStd = LangStandard::lang_gnucxx14; 2334 #endif 2335 break; 2336 case Language::RenderScript: 2337 LangStd = LangStandard::lang_c99; 2338 break; 2339 case Language::HIP: 2340 LangStd = LangStandard::lang_hip; 2341 break; 2342 } 2343 } 2344 2345 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2346 Opts.LineComment = Std.hasLineComments(); 2347 Opts.C99 = Std.isC99(); 2348 Opts.C11 = Std.isC11(); 2349 Opts.C17 = Std.isC17(); 2350 Opts.C2x = Std.isC2x(); 2351 Opts.CPlusPlus = Std.isCPlusPlus(); 2352 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2353 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2354 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2355 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 2356 Opts.Digraphs = Std.hasDigraphs(); 2357 Opts.GNUMode = Std.isGNUMode(); 2358 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2359 Opts.GNUCVersion = 0; 2360 Opts.HexFloats = Std.hasHexFloats(); 2361 Opts.ImplicitInt = Std.hasImplicitInt(); 2362 2363 // Set OpenCL Version. 2364 Opts.OpenCL = Std.isOpenCL(); 2365 if (LangStd == LangStandard::lang_opencl10) 2366 Opts.OpenCLVersion = 100; 2367 else if (LangStd == LangStandard::lang_opencl11) 2368 Opts.OpenCLVersion = 110; 2369 else if (LangStd == LangStandard::lang_opencl12) 2370 Opts.OpenCLVersion = 120; 2371 else if (LangStd == LangStandard::lang_opencl20) 2372 Opts.OpenCLVersion = 200; 2373 else if (LangStd == LangStandard::lang_opencl30) 2374 Opts.OpenCLVersion = 300; 2375 else if (LangStd == LangStandard::lang_openclcpp) 2376 Opts.OpenCLCPlusPlusVersion = 100; 2377 2378 // OpenCL has some additional defaults. 2379 if (Opts.OpenCL) { 2380 Opts.AltiVec = 0; 2381 Opts.ZVector = 0; 2382 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2383 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2384 Opts.NativeHalfType = 1; 2385 Opts.NativeHalfArgsAndReturns = 1; 2386 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2387 2388 // Include default header file for OpenCL. 2389 if (Opts.IncludeDefaultHeader) { 2390 if (Opts.DeclareOpenCLBuiltins) { 2391 // Only include base header file for builtin types and constants. 2392 PPOpts.Includes.push_back("opencl-c-base.h"); 2393 } else { 2394 PPOpts.Includes.push_back("opencl-c.h"); 2395 } 2396 } 2397 } 2398 2399 Opts.HIP = IK.getLanguage() == Language::HIP; 2400 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2401 if (Opts.CUDA) 2402 // Set default FP_CONTRACT to FAST. 2403 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2404 2405 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2406 if (Opts.RenderScript) { 2407 Opts.NativeHalfType = 1; 2408 Opts.NativeHalfArgsAndReturns = 1; 2409 } 2410 2411 // OpenCL and C++ both have bool, true, false keywords. 2412 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2413 2414 // OpenCL has half keyword 2415 Opts.Half = Opts.OpenCL; 2416 2417 // C++ has wchar_t keyword. 2418 Opts.WChar = Opts.CPlusPlus; 2419 2420 Opts.GNUKeywords = Opts.GNUMode; 2421 Opts.CXXOperatorNames = Opts.CPlusPlus; 2422 2423 Opts.AlignedAllocation = Opts.CPlusPlus17; 2424 2425 Opts.DollarIdents = !Opts.AsmPreprocessor; 2426 2427 // Enable [[]] attributes in C++11 and C2x by default. 2428 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2429 } 2430 2431 /// Attempt to parse a visibility value out of the given argument. 2432 static Visibility parseVisibility(Arg *arg, ArgList &args, 2433 DiagnosticsEngine &diags) { 2434 StringRef value = arg->getValue(); 2435 if (value == "default") { 2436 return DefaultVisibility; 2437 } else if (value == "hidden" || value == "internal") { 2438 return HiddenVisibility; 2439 } else if (value == "protected") { 2440 // FIXME: diagnose if target does not support protected visibility 2441 return ProtectedVisibility; 2442 } 2443 2444 diags.Report(diag::err_drv_invalid_value) 2445 << arg->getAsString(args) << value; 2446 return DefaultVisibility; 2447 } 2448 2449 /// Check if input file kind and language standard are compatible. 2450 static bool IsInputCompatibleWithStandard(InputKind IK, 2451 const LangStandard &S) { 2452 switch (IK.getLanguage()) { 2453 case Language::Unknown: 2454 case Language::LLVM_IR: 2455 llvm_unreachable("should not parse language flags for this input"); 2456 2457 case Language::C: 2458 case Language::ObjC: 2459 case Language::RenderScript: 2460 return S.getLanguage() == Language::C; 2461 2462 case Language::OpenCL: 2463 return S.getLanguage() == Language::OpenCL; 2464 2465 case Language::CXX: 2466 case Language::ObjCXX: 2467 return S.getLanguage() == Language::CXX; 2468 2469 case Language::CUDA: 2470 // FIXME: What -std= values should be permitted for CUDA compilations? 2471 return S.getLanguage() == Language::CUDA || 2472 S.getLanguage() == Language::CXX; 2473 2474 case Language::HIP: 2475 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2476 2477 case Language::Asm: 2478 // Accept (and ignore) all -std= values. 2479 // FIXME: The -std= value is not ignored; it affects the tokenization 2480 // and preprocessing rules if we're preprocessing this asm input. 2481 return true; 2482 } 2483 2484 llvm_unreachable("unexpected input language"); 2485 } 2486 2487 /// Get language name for given input kind. 2488 static const StringRef GetInputKindName(InputKind IK) { 2489 switch (IK.getLanguage()) { 2490 case Language::C: 2491 return "C"; 2492 case Language::ObjC: 2493 return "Objective-C"; 2494 case Language::CXX: 2495 return "C++"; 2496 case Language::ObjCXX: 2497 return "Objective-C++"; 2498 case Language::OpenCL: 2499 return "OpenCL"; 2500 case Language::CUDA: 2501 return "CUDA"; 2502 case Language::RenderScript: 2503 return "RenderScript"; 2504 case Language::HIP: 2505 return "HIP"; 2506 2507 case Language::Asm: 2508 return "Asm"; 2509 case Language::LLVM_IR: 2510 return "LLVM IR"; 2511 2512 case Language::Unknown: 2513 break; 2514 } 2515 llvm_unreachable("unknown input language"); 2516 } 2517 2518 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2519 const TargetOptions &TargetOpts, 2520 PreprocessorOptions &PPOpts, 2521 DiagnosticsEngine &Diags) { 2522 // FIXME: Cleanup per-file based stuff. 2523 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2524 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2525 LangStd = LangStandard::getLangKind(A->getValue()); 2526 if (LangStd == LangStandard::lang_unspecified) { 2527 Diags.Report(diag::err_drv_invalid_value) 2528 << A->getAsString(Args) << A->getValue(); 2529 // Report supported standards with short description. 2530 for (unsigned KindValue = 0; 2531 KindValue != LangStandard::lang_unspecified; 2532 ++KindValue) { 2533 const LangStandard &Std = LangStandard::getLangStandardForKind( 2534 static_cast<LangStandard::Kind>(KindValue)); 2535 if (IsInputCompatibleWithStandard(IK, Std)) { 2536 auto Diag = Diags.Report(diag::note_drv_use_standard); 2537 Diag << Std.getName() << Std.getDescription(); 2538 unsigned NumAliases = 0; 2539 #define LANGSTANDARD(id, name, lang, desc, features) 2540 #define LANGSTANDARD_ALIAS(id, alias) \ 2541 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2542 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2543 #include "clang/Basic/LangStandards.def" 2544 Diag << NumAliases; 2545 #define LANGSTANDARD(id, name, lang, desc, features) 2546 #define LANGSTANDARD_ALIAS(id, alias) \ 2547 if (KindValue == LangStandard::lang_##id) Diag << alias; 2548 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2549 #include "clang/Basic/LangStandards.def" 2550 } 2551 } 2552 } else { 2553 // Valid standard, check to make sure language and standard are 2554 // compatible. 2555 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2556 if (!IsInputCompatibleWithStandard(IK, Std)) { 2557 Diags.Report(diag::err_drv_argument_not_allowed_with) 2558 << A->getAsString(Args) << GetInputKindName(IK); 2559 } 2560 } 2561 } 2562 2563 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2564 Opts.DllExportInlines = false; 2565 2566 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2567 StringRef Name = A->getValue(); 2568 if (Name == "full" || Name == "branch") { 2569 Opts.CFProtectionBranch = 1; 2570 } 2571 } 2572 // -cl-std only applies for OpenCL language standards. 2573 // Override the -std option in this case. 2574 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2575 LangStandard::Kind OpenCLLangStd 2576 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2577 .Cases("cl", "CL", LangStandard::lang_opencl10) 2578 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2579 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2580 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2581 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 2582 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2583 .Default(LangStandard::lang_unspecified); 2584 2585 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2586 Diags.Report(diag::err_drv_invalid_value) 2587 << A->getAsString(Args) << A->getValue(); 2588 } 2589 else 2590 LangStd = OpenCLLangStd; 2591 } 2592 2593 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2594 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2595 if (Opts.SYCL) { 2596 // -sycl-std applies to any SYCL source, not only those containing kernels, 2597 // but also those using the SYCL API 2598 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2599 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2600 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2601 .Default(0U); 2602 2603 if (Opts.SYCLVersion == 0U) { 2604 // User has passed an invalid value to the flag, this is an error 2605 Diags.Report(diag::err_drv_invalid_value) 2606 << A->getAsString(Args) << A->getValue(); 2607 } 2608 } 2609 } 2610 2611 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2612 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2613 2614 llvm::Triple T(TargetOpts.Triple); 2615 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2616 2617 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2618 // This option should be deprecated for CL > 1.0 because 2619 // this option was added for compatibility with OpenCL 1.0. 2620 if (Args.getLastArg(OPT_cl_strict_aliasing) 2621 && Opts.OpenCLVersion > 100) { 2622 Diags.Report(diag::warn_option_invalid_ocl_version) 2623 << Opts.getOpenCLVersionTuple().getAsString() 2624 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2625 } 2626 2627 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2628 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2629 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2630 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2631 // name, as it doesn't seem a useful distinction. 2632 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2633 Opts.GNUKeywords); 2634 2635 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2636 2637 if (Args.hasArg(OPT_fno_operator_names)) 2638 Opts.CXXOperatorNames = 0; 2639 2640 if (Args.hasArg(OPT_fcuda_is_device)) 2641 Opts.CUDAIsDevice = 1; 2642 2643 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2644 Opts.CUDAAllowVariadicFunctions = 1; 2645 2646 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2647 Opts.CUDAHostDeviceConstexpr = 0; 2648 2649 if (Args.hasArg(OPT_fgpu_defer_diag)) 2650 Opts.GPUDeferDiag = 1; 2651 2652 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2653 Opts.CUDADeviceApproxTranscendentals = 1; 2654 2655 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2656 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2657 if (Opts.HIP) 2658 Opts.GPUAllowDeviceInit = 1; 2659 else 2660 Diags.Report(diag::warn_ignored_hip_only_option) 2661 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2662 } 2663 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2664 if (Opts.HIP) 2665 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2666 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2667 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2668 Diags.Report(diag::warn_ignored_hip_only_option) 2669 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2670 2671 if (Opts.ObjC) { 2672 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2673 StringRef value = arg->getValue(); 2674 if (Opts.ObjCRuntime.tryParse(value)) 2675 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2676 } 2677 2678 if (Args.hasArg(OPT_fobjc_gc_only)) 2679 Opts.setGC(LangOptions::GCOnly); 2680 else if (Args.hasArg(OPT_fobjc_gc)) 2681 Opts.setGC(LangOptions::HybridGC); 2682 else if (Args.hasArg(OPT_fobjc_arc)) { 2683 Opts.ObjCAutoRefCount = 1; 2684 if (!Opts.ObjCRuntime.allowsARC()) 2685 Diags.Report(diag::err_arc_unsupported_on_runtime); 2686 } 2687 2688 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2689 // whether the feature is actually enabled. This is predominantly 2690 // determined by -fobjc-runtime, but we allow it to be overridden 2691 // from the command line for testing purposes. 2692 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2693 Opts.ObjCWeakRuntime = 1; 2694 else 2695 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2696 2697 // ObjCWeak determines whether __weak is actually enabled. 2698 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2699 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2700 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2701 assert(!Opts.ObjCWeak); 2702 } else if (Opts.getGC() != LangOptions::NonGC) { 2703 Diags.Report(diag::err_objc_weak_with_gc); 2704 } else if (!Opts.ObjCWeakRuntime) { 2705 Diags.Report(diag::err_objc_weak_unsupported); 2706 } else { 2707 Opts.ObjCWeak = 1; 2708 } 2709 } else if (Opts.ObjCAutoRefCount) { 2710 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2711 } 2712 2713 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2714 Opts.ObjCInferRelatedResultType = 0; 2715 2716 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2717 Opts.ObjCSubscriptingLegacyRuntime = 2718 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2719 } 2720 2721 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2722 // Check that the version has 1 to 3 components and the minor and patch 2723 // versions fit in two decimal digits. 2724 VersionTuple GNUCVer; 2725 bool Invalid = GNUCVer.tryParse(A->getValue()); 2726 unsigned Major = GNUCVer.getMajor(); 2727 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2728 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2729 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2730 Diags.Report(diag::err_drv_invalid_value) 2731 << A->getAsString(Args) << A->getValue(); 2732 } 2733 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2734 } 2735 2736 if (Args.hasArg(OPT_fgnu89_inline)) { 2737 if (Opts.CPlusPlus) 2738 Diags.Report(diag::err_drv_argument_not_allowed_with) 2739 << "-fgnu89-inline" << GetInputKindName(IK); 2740 else 2741 Opts.GNUInline = 1; 2742 } 2743 2744 if (Args.hasArg(OPT_fapple_kext)) { 2745 if (!Opts.CPlusPlus) 2746 Diags.Report(diag::warn_c_kext); 2747 else 2748 Opts.AppleKext = 1; 2749 } 2750 2751 if (Args.hasArg(OPT_print_ivar_layout)) 2752 Opts.ObjCGCBitmapPrint = 1; 2753 2754 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2755 Opts.NoConstantCFStrings = 1; 2756 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2757 Opts.CFRuntime = 2758 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2759 .Cases("unspecified", "standalone", "objc", 2760 LangOptions::CoreFoundationABI::ObjectiveC) 2761 .Cases("swift", "swift-5.0", 2762 LangOptions::CoreFoundationABI::Swift5_0) 2763 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2764 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2765 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2766 2767 if (Args.hasArg(OPT_fzvector)) 2768 Opts.ZVector = 1; 2769 2770 if (Args.hasArg(OPT_pthread)) 2771 Opts.POSIXThreads = 1; 2772 2773 // The value-visibility mode defaults to "default". 2774 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2775 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2776 } else { 2777 Opts.setValueVisibilityMode(DefaultVisibility); 2778 } 2779 2780 // The type-visibility mode defaults to the value-visibility mode. 2781 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2782 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2783 } else { 2784 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2785 } 2786 2787 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2788 Opts.InlineVisibilityHidden = 1; 2789 2790 if (Args.hasArg(OPT_fvisibility_inlines_hidden_static_local_var)) 2791 Opts.VisibilityInlinesHiddenStaticLocalVar = 1; 2792 2793 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2794 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2795 2796 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2797 Opts.SetVisibilityForExternDecls = 1; 2798 2799 if (Args.hasArg(OPT_ftrapv)) { 2800 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2801 // Set the handler, if one is specified. 2802 Opts.OverflowHandler = 2803 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2804 } 2805 else if (Args.hasArg(OPT_fwrapv)) 2806 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2807 2808 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2809 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2810 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2811 Opts.MSCompatibilityVersion = 0; 2812 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2813 VersionTuple VT; 2814 if (VT.tryParse(A->getValue())) 2815 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2816 << A->getValue(); 2817 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2818 VT.getMinor().getValueOr(0) * 100000 + 2819 VT.getSubminor().getValueOr(0); 2820 } 2821 2822 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2823 // is specified, or -std is set to a conforming mode. 2824 // Trigraphs are disabled by default in c++1z onwards. 2825 // For z/OS, trigraphs are enabled by default (without regard to the above). 2826 Opts.Trigraphs = 2827 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 2828 Opts.Trigraphs = 2829 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2830 2831 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2832 OPT_fno_dollars_in_identifiers, 2833 Opts.DollarIdents); 2834 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2835 Opts.setVtorDispMode( 2836 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2837 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2838 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2839 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2840 Opts.ConstStrings); 2841 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2842 using LaxKind = LangOptions::LaxVectorConversionKind; 2843 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2844 .Case("none", LaxKind::None) 2845 .Case("integer", LaxKind::Integer) 2846 .Case("all", LaxKind::All) 2847 .Default(llvm::None)) 2848 Opts.setLaxVectorConversions(*Kind); 2849 else 2850 Diags.Report(diag::err_drv_invalid_value) 2851 << A->getAsString(Args) << A->getValue(); 2852 } 2853 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2854 Opts.ThreadsafeStatics = 0; 2855 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2856 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2857 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2858 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2859 2860 // -ffixed-point 2861 Opts.FixedPoint = 2862 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2863 !Opts.CPlusPlus; 2864 Opts.PaddingOnUnsignedFixedPoint = 2865 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2866 OPT_fno_padding_on_unsigned_fixed_point, 2867 /*Default=*/false) && 2868 Opts.FixedPoint; 2869 2870 // Handle exception personalities 2871 Arg *A = Args.getLastArg( 2872 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2873 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2874 if (A) { 2875 const Option &Opt = A->getOption(); 2876 llvm::Triple T(TargetOpts.Triple); 2877 if (T.isWindowsMSVCEnvironment()) 2878 Diags.Report(diag::err_fe_invalid_exception_model) 2879 << Opt.getName() << T.str(); 2880 2881 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2882 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2883 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2884 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2885 } 2886 2887 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2888 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2889 2890 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2891 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2892 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2893 && Opts.OpenCLVersion == 200); 2894 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2895 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2896 2897 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2898 Opts.SYCLIsDevice || 2899 Args.hasArg(OPT_fconvergent_functions); 2900 2901 Opts.DoubleSquareBracketAttributes = 2902 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2903 OPT_fno_double_square_bracket_attributes, 2904 Opts.DoubleSquareBracketAttributes); 2905 2906 Opts.CPlusPlusModules = Opts.CPlusPlus20; 2907 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2908 Opts.Modules = 2909 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2910 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2911 Opts.ModulesDeclUse = 2912 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2913 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2914 // enter a different module (eg, when building a header unit). 2915 Opts.ModulesLocalVisibility = 2916 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2917 Opts.CPlusPlusModules; 2918 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2919 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2920 Opts.ModulesSearchAll = Opts.Modules && 2921 !Args.hasArg(OPT_fno_modules_search_all) && 2922 Args.hasArg(OPT_fmodules_search_all); 2923 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2924 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2925 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2926 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2927 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 2928 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2929 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2930 .Case("char", 1) 2931 .Case("short", 2) 2932 .Case("int", 4) 2933 .Default(0); 2934 if (Opts.WCharSize == 0) 2935 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2936 } 2937 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2938 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2939 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2940 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2941 if (!Opts.NoBuiltin) 2942 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2943 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2944 Opts.RelaxedTemplateTemplateArgs = 2945 Args.hasArg(OPT_frelaxed_template_template_args); 2946 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2947 Opts.AlignedAllocation = 2948 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2949 Opts.AlignedAllocation); 2950 Opts.AlignedAllocationUnavailable = 2951 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2952 Opts.NewAlignOverride = 2953 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2954 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2955 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2956 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2957 << A->getValue(); 2958 Opts.NewAlignOverride = 0; 2959 } 2960 Opts.ConceptSatisfactionCaching = 2961 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2962 if (Args.hasArg(OPT_fconcepts_ts)) 2963 Diags.Report(diag::warn_fe_concepts_ts_flag); 2964 // Recovery AST still heavily relies on dependent-type machinery. 2965 Opts.RecoveryAST = 2966 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, Opts.CPlusPlus); 2967 Opts.RecoveryASTType = Args.hasFlag( 2968 OPT_frecovery_ast_type, OPT_fno_recovery_ast_type, Opts.CPlusPlus); 2969 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2970 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2971 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2972 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2973 Opts.InstantiationDepth = 2974 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2975 Opts.ArrowDepth = 2976 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2977 Opts.ConstexprCallDepth = 2978 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2979 Opts.ConstexprStepLimit = 2980 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2981 Opts.EnableNewConstInterp = 2982 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2983 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2984 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2985 Opts.NumLargeByValueCopy = 2986 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2987 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2988 Opts.ObjCConstantStringClass = 2989 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2990 Opts.ObjCDefaultSynthProperties = 2991 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2992 Opts.EncodeExtendedBlockSig = 2993 Args.hasArg(OPT_fencode_extended_block_signature); 2994 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2995 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2996 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2997 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2998 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 2999 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3000 ? 128 3001 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3002 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 3003 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3004 Opts.ROPI = Args.hasArg(OPT_fropi); 3005 Opts.RWPI = Args.hasArg(OPT_frwpi); 3006 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3007 Opts.Static = Args.hasArg(OPT_static_define); 3008 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 3009 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 3010 || Args.hasArg(OPT_fdump_record_layouts); 3011 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 3012 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 3013 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 3014 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 3015 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 3016 if (Opts.FastRelaxedMath) 3017 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3018 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 3019 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 3020 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 3021 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 3022 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 3023 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 3024 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 3025 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 3026 Opts.CurrentModule = Opts.ModuleName; 3027 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 3028 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 3029 llvm::sort(Opts.ModuleFeatures); 3030 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 3031 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 3032 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 3033 // is enabled. 3034 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 3035 | Opts.NativeHalfArgsAndReturns; 3036 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 3037 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 3038 3039 Opts.ArmSveVectorBits = 3040 getLastArgIntValue(Args, options::OPT_msve_vector_bits_EQ, 0, Diags); 3041 3042 // __declspec is enabled by default for the PS4 by the driver, and also 3043 // enabled for Microsoft Extensions or Borland Extensions, here. 3044 // 3045 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 3046 // CUDA extension. However, it is required for supporting 3047 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 3048 // been rewritten in terms of something more generic, remove the Opts.CUDA 3049 // term here. 3050 Opts.DeclSpecKeyword = 3051 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 3052 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 3053 3054 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 3055 switch (llvm::StringSwitch<unsigned>(A->getValue()) 3056 .Case("target", LangOptions::ASMM_Target) 3057 .Case("no", LangOptions::ASMM_Off) 3058 .Case("yes", LangOptions::ASMM_On) 3059 .Default(255)) { 3060 default: 3061 Diags.Report(diag::err_drv_invalid_value) 3062 << "-faddress-space-map-mangling=" << A->getValue(); 3063 break; 3064 case LangOptions::ASMM_Target: 3065 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 3066 break; 3067 case LangOptions::ASMM_On: 3068 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 3069 break; 3070 case LangOptions::ASMM_Off: 3071 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 3072 break; 3073 } 3074 } 3075 3076 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 3077 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 3078 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 3079 A->getValue()) 3080 .Case("single", 3081 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3082 .Case("multiple", 3083 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3084 .Case("virtual", 3085 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3086 .Default(LangOptions::PPTMK_BestCase); 3087 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3088 Diags.Report(diag::err_drv_invalid_value) 3089 << "-fms-memptr-rep=" << A->getValue(); 3090 3091 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3092 } 3093 3094 // Check for MS default calling conventions being specified. 3095 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3096 LangOptions::DefaultCallingConvention DefaultCC = 3097 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3098 .Case("cdecl", LangOptions::DCC_CDecl) 3099 .Case("fastcall", LangOptions::DCC_FastCall) 3100 .Case("stdcall", LangOptions::DCC_StdCall) 3101 .Case("vectorcall", LangOptions::DCC_VectorCall) 3102 .Case("regcall", LangOptions::DCC_RegCall) 3103 .Default(LangOptions::DCC_None); 3104 if (DefaultCC == LangOptions::DCC_None) 3105 Diags.Report(diag::err_drv_invalid_value) 3106 << "-fdefault-calling-conv=" << A->getValue(); 3107 3108 llvm::Triple T(TargetOpts.Triple); 3109 llvm::Triple::ArchType Arch = T.getArch(); 3110 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3111 DefaultCC == LangOptions::DCC_StdCall) && 3112 Arch != llvm::Triple::x86; 3113 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3114 DefaultCC == LangOptions::DCC_RegCall) && 3115 !T.isX86(); 3116 if (emitError) 3117 Diags.Report(diag::err_drv_argument_not_allowed_with) 3118 << A->getSpelling() << T.getTriple(); 3119 else 3120 Opts.setDefaultCallingConv(DefaultCC); 3121 } 3122 3123 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3124 // An explicit -fno-semantic-interposition infers dso_local. 3125 Opts.ExplicitNoSemanticInterposition = 3126 Args.hasArg(OPT_fno_semantic_interposition); 3127 3128 // -mrtd option 3129 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3130 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3131 Diags.Report(diag::err_drv_argument_not_allowed_with) 3132 << A->getSpelling() << "-fdefault-calling-conv"; 3133 else { 3134 llvm::Triple T(TargetOpts.Triple); 3135 if (T.getArch() != llvm::Triple::x86) 3136 Diags.Report(diag::err_drv_argument_not_allowed_with) 3137 << A->getSpelling() << T.getTriple(); 3138 else 3139 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3140 } 3141 } 3142 3143 // Check if -fopenmp is specified and set default version to 5.0. 3144 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 50 : 0; 3145 // Check if -fopenmp-simd is specified. 3146 bool IsSimdSpecified = 3147 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3148 /*Default=*/false); 3149 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3150 Opts.OpenMPUseTLS = 3151 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3152 Opts.OpenMPIsDevice = 3153 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3154 Opts.OpenMPIRBuilder = 3155 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3156 bool IsTargetSpecified = 3157 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3158 3159 if (Opts.OpenMP || Opts.OpenMPSimd) { 3160 if (int Version = getLastArgIntValue( 3161 Args, OPT_fopenmp_version_EQ, 3162 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3163 Opts.OpenMP = Version; 3164 // Provide diagnostic when a given target is not expected to be an OpenMP 3165 // device or host. 3166 if (!Opts.OpenMPIsDevice) { 3167 switch (T.getArch()) { 3168 default: 3169 break; 3170 // Add unsupported host targets here: 3171 case llvm::Triple::nvptx: 3172 case llvm::Triple::nvptx64: 3173 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3174 << TargetOpts.Triple; 3175 break; 3176 } 3177 } 3178 } 3179 3180 // Set the flag to prevent the implementation from emitting device exception 3181 // handling code for those requiring so. 3182 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3183 Opts.OpenCLCPlusPlus) { 3184 Opts.Exceptions = 0; 3185 Opts.CXXExceptions = 0; 3186 } 3187 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3188 Opts.OpenMPCUDANumSMs = 3189 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3190 Opts.OpenMPCUDANumSMs, Diags); 3191 Opts.OpenMPCUDABlocksPerSM = 3192 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3193 Opts.OpenMPCUDABlocksPerSM, Diags); 3194 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3195 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3196 Opts.OpenMPCUDAReductionBufNum, Diags); 3197 } 3198 3199 // Prevent auto-widening the representation of loop counters during an 3200 // OpenMP collapse clause. 3201 Opts.OpenMPOptimisticCollapse = 3202 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3203 3204 // Get the OpenMP target triples if any. 3205 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3206 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3207 auto getArchPtrSize = [](const llvm::Triple &T) { 3208 if (T.isArch16Bit()) 3209 return Arch16Bit; 3210 if (T.isArch32Bit()) 3211 return Arch32Bit; 3212 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3213 return Arch64Bit; 3214 }; 3215 3216 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3217 llvm::Triple TT(A->getValue(i)); 3218 3219 if (TT.getArch() == llvm::Triple::UnknownArch || 3220 !(TT.getArch() == llvm::Triple::aarch64 || 3221 TT.getArch() == llvm::Triple::ppc || 3222 TT.getArch() == llvm::Triple::ppc64 || 3223 TT.getArch() == llvm::Triple::ppc64le || 3224 TT.getArch() == llvm::Triple::nvptx || 3225 TT.getArch() == llvm::Triple::nvptx64 || 3226 TT.getArch() == llvm::Triple::amdgcn || 3227 TT.getArch() == llvm::Triple::x86 || 3228 TT.getArch() == llvm::Triple::x86_64)) 3229 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3230 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3231 Diags.Report(diag::err_drv_incompatible_omp_arch) 3232 << A->getValue(i) << T.str(); 3233 else 3234 Opts.OMPTargetTriples.push_back(TT); 3235 } 3236 } 3237 3238 // Get OpenMP host file path if any and report if a non existent file is 3239 // found 3240 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3241 Opts.OMPHostIRFile = A->getValue(); 3242 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3243 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3244 << Opts.OMPHostIRFile; 3245 } 3246 3247 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3248 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3249 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3250 3251 // Set CUDA support for parallel execution of target regions for OpenMP target 3252 // NVPTX/AMDGCN if specified in options. 3253 Opts.OpenMPCUDATargetParallel = 3254 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3255 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3256 3257 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3258 Opts.OpenMPCUDAForceFullRuntime = 3259 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3260 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3261 3262 // Record whether the __DEPRECATED define was requested. 3263 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3264 OPT_fno_deprecated_macro, 3265 Opts.Deprecated); 3266 3267 // FIXME: Eliminate this dependency. 3268 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3269 OptSize = getOptimizationLevelSize(Args); 3270 Opts.Optimize = Opt != 0; 3271 Opts.OptimizeSize = OptSize != 0; 3272 3273 // This is the __NO_INLINE__ define, which just depends on things like the 3274 // optimization level and -fno-inline, not actually whether the backend has 3275 // inlining enabled. 3276 Opts.NoInlineDefine = !Opts.Optimize; 3277 if (Arg *InlineArg = Args.getLastArg( 3278 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3279 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3280 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3281 Opts.NoInlineDefine = true; 3282 3283 Opts.FastMath = 3284 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_fast_relaxed_math); 3285 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3286 Args.hasArg(OPT_ffast_math) || 3287 Args.hasArg(OPT_cl_finite_math_only) || 3288 Args.hasArg(OPT_cl_fast_relaxed_math); 3289 Opts.UnsafeFPMath = 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.AllowFPReassoc = Args.hasArg(OPT_mreassociate) || 3294 Args.hasArg(OPT_menable_unsafe_fp_math) || 3295 Args.hasArg(OPT_ffast_math) || 3296 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3297 Args.hasArg(OPT_cl_fast_relaxed_math); 3298 Opts.NoHonorNaNs = 3299 Args.hasArg(OPT_menable_no_nans) || Args.hasArg(OPT_ffinite_math_only) || 3300 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_finite_math_only) || 3301 Args.hasArg(OPT_cl_fast_relaxed_math); 3302 Opts.NoHonorInfs = Args.hasArg(OPT_menable_no_infinities) || 3303 Args.hasArg(OPT_ffinite_math_only) || 3304 Args.hasArg(OPT_ffast_math) || 3305 Args.hasArg(OPT_cl_finite_math_only) || 3306 Args.hasArg(OPT_cl_fast_relaxed_math); 3307 Opts.NoSignedZero = Args.hasArg(OPT_fno_signed_zeros) || 3308 Args.hasArg(OPT_menable_unsafe_fp_math) || 3309 Args.hasArg(OPT_ffast_math) || 3310 Args.hasArg(OPT_cl_no_signed_zeros) || 3311 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3312 Args.hasArg(OPT_cl_fast_relaxed_math); 3313 Opts.AllowRecip = Args.hasArg(OPT_freciprocal_math) || 3314 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 // Currently there's no clang option to enable this individually 3319 Opts.ApproxFunc = Args.hasArg(OPT_menable_unsafe_fp_math) || 3320 Args.hasArg(OPT_ffast_math) || 3321 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3322 Args.hasArg(OPT_cl_fast_relaxed_math); 3323 3324 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3325 StringRef Val = A->getValue(); 3326 if (Val == "fast") 3327 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3328 else if (Val == "on") 3329 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3330 else if (Val == "off") 3331 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3332 else 3333 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3334 } 3335 3336 if (Args.hasArg(OPT_fexperimental_strict_floating_point)) 3337 Opts.ExpStrictFP = true; 3338 3339 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3340 if (Args.hasArg(OPT_frounding_math)) { 3341 FPRM = llvm::RoundingMode::Dynamic; 3342 } 3343 Opts.setFPRoundingMode(FPRM); 3344 3345 if (Args.hasArg(OPT_ftrapping_math)) { 3346 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3347 } 3348 3349 if (Args.hasArg(OPT_fno_trapping_math)) { 3350 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3351 } 3352 3353 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3354 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3355 StringRef Val = A->getValue(); 3356 if (Val.equals("ignore")) 3357 FPEB = LangOptions::FPE_Ignore; 3358 else if (Val.equals("maytrap")) 3359 FPEB = LangOptions::FPE_MayTrap; 3360 else if (Val.equals("strict")) 3361 FPEB = LangOptions::FPE_Strict; 3362 else 3363 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3364 } 3365 Opts.setFPExceptionMode(FPEB); 3366 3367 Opts.RetainCommentsFromSystemHeaders = 3368 Args.hasArg(OPT_fretain_comments_from_system_headers); 3369 3370 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3371 switch (SSP) { 3372 default: 3373 Diags.Report(diag::err_drv_invalid_value) 3374 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3375 break; 3376 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3377 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3378 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3379 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3380 } 3381 3382 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3383 StringRef Val = A->getValue(); 3384 if (Val == "uninitialized") 3385 Opts.setTrivialAutoVarInit( 3386 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3387 else if (Val == "zero") 3388 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3389 else if (Val == "pattern") 3390 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3391 else 3392 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3393 } 3394 3395 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init_stop_after)) { 3396 int Val = std::stoi(A->getValue()); 3397 Opts.TrivialAutoVarInitStopAfter = Val; 3398 } 3399 3400 // Parse -fsanitize= arguments. 3401 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3402 Diags, Opts.Sanitize); 3403 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3404 Opts.SanitizeAddressFieldPadding = 3405 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3406 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3407 std::vector<std::string> systemBlacklists = 3408 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3409 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3410 systemBlacklists.begin(), 3411 systemBlacklists.end()); 3412 3413 // -fxray-instrument 3414 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3415 Opts.XRayAlwaysEmitCustomEvents = 3416 Args.hasArg(OPT_fxray_always_emit_customevents); 3417 Opts.XRayAlwaysEmitTypedEvents = 3418 Args.hasArg(OPT_fxray_always_emit_typedevents); 3419 3420 // -fxray-{always,never}-instrument= filenames. 3421 Opts.XRayAlwaysInstrumentFiles = 3422 Args.getAllArgValues(OPT_fxray_always_instrument); 3423 Opts.XRayNeverInstrumentFiles = 3424 Args.getAllArgValues(OPT_fxray_never_instrument); 3425 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3426 3427 // -fforce-emit-vtables 3428 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3429 3430 // -fallow-editor-placeholders 3431 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3432 3433 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3434 3435 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3436 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3437 3438 StringRef Ver = A->getValue(); 3439 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3440 unsigned Major, Minor = 0; 3441 3442 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3443 // y or y.0 (4 <= y <= current version). 3444 if (!VerParts.first.startswith("0") && 3445 !VerParts.first.getAsInteger(10, Major) && 3446 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3447 (Major == 3 ? VerParts.second.size() == 1 && 3448 !VerParts.second.getAsInteger(10, Minor) 3449 : VerParts.first.size() == Ver.size() || 3450 VerParts.second == "0")) { 3451 // Got a valid version number. 3452 if (Major == 3 && Minor <= 8) 3453 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3454 else if (Major <= 4) 3455 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3456 else if (Major <= 6) 3457 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3458 else if (Major <= 7) 3459 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3460 else if (Major <= 9) 3461 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3462 else if (Major <= 11) 3463 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3464 } else if (Ver != "latest") { 3465 Diags.Report(diag::err_drv_invalid_value) 3466 << A->getAsString(Args) << A->getValue(); 3467 } 3468 } 3469 3470 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3471 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3472 Opts.PCHInstantiateTemplates = Args.hasArg(OPT_fpch_instantiate_templates); 3473 3474 Opts.MatrixTypes = Args.hasArg(OPT_fenable_matrix); 3475 3476 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3477 3478 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3479 StringRef SignScope = A->getValue(); 3480 3481 if (SignScope.equals_lower("none")) 3482 Opts.setSignReturnAddressScope( 3483 LangOptions::SignReturnAddressScopeKind::None); 3484 else if (SignScope.equals_lower("all")) 3485 Opts.setSignReturnAddressScope( 3486 LangOptions::SignReturnAddressScopeKind::All); 3487 else if (SignScope.equals_lower("non-leaf")) 3488 Opts.setSignReturnAddressScope( 3489 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3490 else 3491 Diags.Report(diag::err_drv_invalid_value) 3492 << A->getAsString(Args) << SignScope; 3493 3494 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3495 StringRef SignKey = A->getValue(); 3496 if (!SignScope.empty() && !SignKey.empty()) { 3497 if (SignKey.equals_lower("a_key")) 3498 Opts.setSignReturnAddressKey( 3499 LangOptions::SignReturnAddressKeyKind::AKey); 3500 else if (SignKey.equals_lower("b_key")) 3501 Opts.setSignReturnAddressKey( 3502 LangOptions::SignReturnAddressKeyKind::BKey); 3503 else 3504 Diags.Report(diag::err_drv_invalid_value) 3505 << A->getAsString(Args) << SignKey; 3506 } 3507 } 3508 } 3509 3510 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3511 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 3512 3513 Opts.CompatibilityQualifiedIdBlockParamTypeChecking = 3514 Args.hasArg(OPT_fcompatibility_qualified_id_block_param_type_checking); 3515 3516 Opts.RelativeCXXABIVTables = 3517 Args.hasFlag(OPT_fexperimental_relative_cxx_abi_vtables, 3518 OPT_fno_experimental_relative_cxx_abi_vtables, 3519 /*default=*/false); 3520 } 3521 3522 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3523 switch (Action) { 3524 case frontend::ASTDeclList: 3525 case frontend::ASTDump: 3526 case frontend::ASTPrint: 3527 case frontend::ASTView: 3528 case frontend::EmitAssembly: 3529 case frontend::EmitBC: 3530 case frontend::EmitHTML: 3531 case frontend::EmitLLVM: 3532 case frontend::EmitLLVMOnly: 3533 case frontend::EmitCodeGenOnly: 3534 case frontend::EmitObj: 3535 case frontend::FixIt: 3536 case frontend::GenerateModule: 3537 case frontend::GenerateModuleInterface: 3538 case frontend::GenerateHeaderModule: 3539 case frontend::GeneratePCH: 3540 case frontend::GenerateInterfaceStubs: 3541 case frontend::ParseSyntaxOnly: 3542 case frontend::ModuleFileInfo: 3543 case frontend::VerifyPCH: 3544 case frontend::PluginAction: 3545 case frontend::RewriteObjC: 3546 case frontend::RewriteTest: 3547 case frontend::RunAnalysis: 3548 case frontend::TemplightDump: 3549 case frontend::MigrateSource: 3550 return false; 3551 3552 case frontend::DumpCompilerOptions: 3553 case frontend::DumpRawTokens: 3554 case frontend::DumpTokens: 3555 case frontend::InitOnly: 3556 case frontend::PrintPreamble: 3557 case frontend::PrintPreprocessedInput: 3558 case frontend::RewriteMacros: 3559 case frontend::RunPreprocessorOnly: 3560 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3561 return true; 3562 } 3563 llvm_unreachable("invalid frontend action"); 3564 } 3565 3566 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3567 DiagnosticsEngine &Diags, 3568 frontend::ActionKind Action) { 3569 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3570 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3571 Args.hasArg(OPT_pch_through_hdrstop_use); 3572 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3573 Opts.PCHThroughHeader = 3574 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3575 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3576 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3577 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3578 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3579 3580 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3581 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3582 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3583 3584 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3585 auto Split = StringRef(A).split('='); 3586 Opts.MacroPrefixMap.insert( 3587 {std::string(Split.first), std::string(Split.second)}); 3588 } 3589 3590 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3591 StringRef Value(A->getValue()); 3592 size_t Comma = Value.find(','); 3593 unsigned Bytes = 0; 3594 unsigned EndOfLine = 0; 3595 3596 if (Comma == StringRef::npos || 3597 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3598 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3599 Diags.Report(diag::err_drv_preamble_format); 3600 else { 3601 Opts.PrecompiledPreambleBytes.first = Bytes; 3602 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3603 } 3604 } 3605 3606 // Add the __CET__ macro if a CFProtection option is set. 3607 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3608 StringRef Name = A->getValue(); 3609 if (Name == "branch") 3610 Opts.addMacroDef("__CET__=1"); 3611 else if (Name == "return") 3612 Opts.addMacroDef("__CET__=2"); 3613 else if (Name == "full") 3614 Opts.addMacroDef("__CET__=3"); 3615 } 3616 3617 // Add macros from the command line. 3618 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3619 if (A->getOption().matches(OPT_D)) 3620 Opts.addMacroDef(A->getValue()); 3621 else 3622 Opts.addMacroUndef(A->getValue()); 3623 } 3624 3625 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3626 3627 // Add the ordered list of -includes. 3628 for (const auto *A : Args.filtered(OPT_include)) 3629 Opts.Includes.emplace_back(A->getValue()); 3630 3631 for (const auto *A : Args.filtered(OPT_chain_include)) 3632 Opts.ChainedIncludes.emplace_back(A->getValue()); 3633 3634 for (const auto *A : Args.filtered(OPT_remap_file)) { 3635 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3636 3637 if (Split.second.empty()) { 3638 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3639 continue; 3640 } 3641 3642 Opts.addRemappedFile(Split.first, Split.second); 3643 } 3644 3645 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3646 StringRef Name = A->getValue(); 3647 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3648 .Case("libc++", ARCXX_libcxx) 3649 .Case("libstdc++", ARCXX_libstdcxx) 3650 .Case("none", ARCXX_nolib) 3651 .Default(~0U); 3652 if (Library == ~0U) 3653 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3654 else 3655 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3656 } 3657 3658 // Always avoid lexing editor placeholders when we're just running the 3659 // preprocessor as we never want to emit the 3660 // "editor placeholder in source file" error in PP only mode. 3661 if (isStrictlyPreprocessorAction(Action)) 3662 Opts.LexEditorPlaceholders = false; 3663 3664 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3665 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3666 } 3667 3668 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3669 ArgList &Args, 3670 frontend::ActionKind Action) { 3671 if (isStrictlyPreprocessorAction(Action)) 3672 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3673 else 3674 Opts.ShowCPP = 0; 3675 3676 Opts.ShowComments = Args.hasArg(OPT_C); 3677 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3678 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3679 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3680 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3681 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3682 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3683 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3684 } 3685 3686 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3687 DiagnosticsEngine &Diags) { 3688 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3689 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3690 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3691 StringRef Value = A->getValue(); 3692 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3693 .Case("default", llvm::EABI::Default) 3694 .Case("4", llvm::EABI::EABI4) 3695 .Case("5", llvm::EABI::EABI5) 3696 .Case("gnu", llvm::EABI::GNU) 3697 .Default(llvm::EABI::Unknown); 3698 if (EABIVersion == llvm::EABI::Unknown) 3699 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3700 << Value; 3701 else 3702 Opts.EABIVersion = EABIVersion; 3703 } 3704 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3705 Opts.TuneCPU = std::string(Args.getLastArgValue(OPT_tune_cpu)); 3706 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3707 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3708 Opts.LinkerVersion = 3709 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3710 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3711 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3712 Opts.NVPTXUseShortPointers = Args.hasFlag( 3713 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3714 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3715 llvm::VersionTuple Version; 3716 if (Version.tryParse(A->getValue())) 3717 Diags.Report(diag::err_drv_invalid_value) 3718 << A->getAsString(Args) << A->getValue(); 3719 else 3720 Opts.SDKVersion = Version; 3721 } 3722 } 3723 3724 bool CompilerInvocation::parseSimpleArgs(const ArgList &Args, 3725 DiagnosticsEngine &Diags) { 3726 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 3727 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 3728 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 3729 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 3730 this->KEYPATH = Args.hasArg(OPT_##ID) && IS_POSITIVE; 3731 3732 #define OPTION_WITH_MARSHALLING_STRING( \ 3733 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3734 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3735 TYPE, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 3736 { \ 3737 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, Args, Diags)) \ 3738 this->KEYPATH = static_cast<TYPE>(*MaybeValue); \ 3739 else \ 3740 this->KEYPATH = DEFAULT_VALUE; \ 3741 } 3742 3743 #include "clang/Driver/Options.inc" 3744 #undef OPTION_WITH_MARSHALLING_STRING 3745 #undef OPTION_WITH_MARSHALLING_FLAG 3746 return true; 3747 } 3748 3749 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3750 ArrayRef<const char *> CommandLineArgs, 3751 DiagnosticsEngine &Diags, 3752 const char *Argv0) { 3753 bool Success = true; 3754 3755 // Parse the arguments. 3756 const OptTable &Opts = getDriverOptTable(); 3757 const unsigned IncludedFlagsBitmask = options::CC1Option; 3758 unsigned MissingArgIndex, MissingArgCount; 3759 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3760 MissingArgCount, IncludedFlagsBitmask); 3761 LangOptions &LangOpts = *Res.getLangOpts(); 3762 3763 // Check for missing argument error. 3764 if (MissingArgCount) { 3765 Diags.Report(diag::err_drv_missing_argument) 3766 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3767 Success = false; 3768 } 3769 3770 // Issue errors on unknown arguments. 3771 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3772 auto ArgString = A->getAsString(Args); 3773 std::string Nearest; 3774 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3775 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3776 else 3777 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3778 << ArgString << Nearest; 3779 Success = false; 3780 } 3781 3782 Success &= Res.parseSimpleArgs(Args, Diags); 3783 3784 llvm::sys::Process::UseANSIEscapeCodes( 3785 Res.DiagnosticOpts->UseANSIEscapeCodes); 3786 3787 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3788 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3789 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3790 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3791 Res.getDependencyOutputOpts().Targets.empty()) { 3792 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3793 Success = false; 3794 } 3795 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3796 /*DefaultDiagColor=*/false); 3797 ParseCommentArgs(LangOpts.CommentOpts, Args); 3798 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3799 // FIXME: We shouldn't have to pass the DashX option around here 3800 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3801 LangOpts.IsHeaderFile); 3802 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3803 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3804 Res.getTargetOpts(), Res.getFrontendOpts()); 3805 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3806 Res.getFileSystemOpts().WorkingDir); 3807 llvm::Triple T(Res.getTargetOpts().Triple); 3808 if (DashX.getFormat() == InputKind::Precompiled || 3809 DashX.getLanguage() == Language::LLVM_IR) { 3810 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3811 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3812 // what the input type is. 3813 if (Args.hasArg(OPT_fobjc_arc)) 3814 LangOpts.ObjCAutoRefCount = 1; 3815 // PIClevel and PIELevel are needed during code generation and this should be 3816 // set regardless of the input type. 3817 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3818 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3819 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3820 Diags, LangOpts.Sanitize); 3821 } else { 3822 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3823 // FIXME: Should we really be calling this for an Language::Asm input? 3824 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3825 Res.getPreprocessorOpts(), Diags); 3826 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3827 LangOpts.ObjCExceptions = 1; 3828 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3829 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3830 // preprocessed input as we don't expect it to be used with -std=libc++ 3831 // anyway. 3832 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3833 } 3834 } 3835 3836 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3837 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3838 3839 LangOpts.FunctionAlignment = 3840 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3841 3842 if (LangOpts.CUDA) { 3843 // During CUDA device-side compilation, the aux triple is the 3844 // triple used for host compilation. 3845 if (LangOpts.CUDAIsDevice) 3846 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3847 } 3848 3849 // Set the triple of the host for OpenMP device compile. 3850 if (LangOpts.OpenMPIsDevice) 3851 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3852 3853 // FIXME: Override value name discarding when asan or msan is used because the 3854 // backend passes depend on the name of the alloca in order to print out 3855 // names. 3856 Res.getCodeGenOpts().DiscardValueNames &= 3857 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3858 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3859 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3860 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3861 3862 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3863 Res.getFrontendOpts().ProgramAction); 3864 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3865 Res.getFrontendOpts().ProgramAction); 3866 3867 // Turn on -Wspir-compat for SPIR target. 3868 if (T.isSPIR()) 3869 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3870 3871 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3872 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3873 !Res.getLangOpts()->Sanitize.empty()) { 3874 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3875 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3876 } 3877 3878 // Store the command-line for using in the CodeView backend. 3879 Res.getCodeGenOpts().Argv0 = Argv0; 3880 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 3881 3882 return Success; 3883 } 3884 3885 std::string CompilerInvocation::getModuleHash() const { 3886 // Note: For QoI reasons, the things we use as a hash here should all be 3887 // dumped via the -module-info flag. 3888 using llvm::hash_code; 3889 using llvm::hash_value; 3890 using llvm::hash_combine; 3891 using llvm::hash_combine_range; 3892 3893 // Start the signature with the compiler version. 3894 // FIXME: We'd rather use something more cryptographically sound than 3895 // CityHash, but this will do for now. 3896 hash_code code = hash_value(getClangFullRepositoryVersion()); 3897 3898 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3899 // and getClangFullRepositoryVersion() doesn't include git revision. 3900 code = hash_combine(code, serialization::VERSION_MAJOR, 3901 serialization::VERSION_MINOR); 3902 3903 // Extend the signature with the language options 3904 #define LANGOPT(Name, Bits, Default, Description) \ 3905 code = hash_combine(code, LangOpts->Name); 3906 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3907 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3908 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3909 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3910 #include "clang/Basic/LangOptions.def" 3911 3912 for (StringRef Feature : LangOpts->ModuleFeatures) 3913 code = hash_combine(code, Feature); 3914 3915 code = hash_combine(code, LangOpts->ObjCRuntime); 3916 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 3917 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 3918 3919 // Extend the signature with the target options. 3920 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3921 TargetOpts->TuneCPU, TargetOpts->ABI); 3922 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3923 code = hash_combine(code, FeatureAsWritten); 3924 3925 // Extend the signature with preprocessor options. 3926 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3927 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3928 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3929 3930 for (const auto &I : getPreprocessorOpts().Macros) { 3931 // If we're supposed to ignore this macro for the purposes of modules, 3932 // don't put it into the hash. 3933 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3934 // Check whether we're ignoring this macro. 3935 StringRef MacroDef = I.first; 3936 if (hsOpts.ModulesIgnoreMacros.count( 3937 llvm::CachedHashString(MacroDef.split('=').first))) 3938 continue; 3939 } 3940 3941 code = hash_combine(code, I.first, I.second); 3942 } 3943 3944 // Extend the signature with the sysroot and other header search options. 3945 code = hash_combine(code, hsOpts.Sysroot, 3946 hsOpts.ModuleFormat, 3947 hsOpts.UseDebugInfo, 3948 hsOpts.UseBuiltinIncludes, 3949 hsOpts.UseStandardSystemIncludes, 3950 hsOpts.UseStandardCXXIncludes, 3951 hsOpts.UseLibcxx, 3952 hsOpts.ModulesValidateDiagnosticOptions); 3953 code = hash_combine(code, hsOpts.ResourceDir); 3954 3955 if (hsOpts.ModulesStrictContextHash) { 3956 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3957 hsOpts.SystemHeaderPrefixes.end()); 3958 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3959 hsOpts.UserEntries.end()); 3960 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3961 hsOpts.UserEntries.size(), UEC); 3962 3963 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3964 #define DIAGOPT(Name, Bits, Default) \ 3965 code = hash_combine(code, diagOpts.Name); 3966 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3967 code = hash_combine(code, diagOpts.get##Name()); 3968 #include "clang/Basic/DiagnosticOptions.def" 3969 #undef DIAGOPT 3970 #undef ENUM_DIAGOPT 3971 } 3972 3973 // Extend the signature with the user build path. 3974 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3975 3976 // Extend the signature with the module file extensions. 3977 const FrontendOptions &frontendOpts = getFrontendOpts(); 3978 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3979 code = ext->hashExtension(code); 3980 } 3981 3982 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3983 // affects the debug info in the PCM. 3984 if (getCodeGenOpts().DebugTypeExtRefs) 3985 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3986 code = hash_combine(code, KeyValue.first, KeyValue.second); 3987 3988 // Extend the signature with the enabled sanitizers, if at least one is 3989 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3990 SanitizerSet SanHash = LangOpts->Sanitize; 3991 SanHash.clear(getPPTransparentSanitizers()); 3992 if (!SanHash.empty()) 3993 code = hash_combine(code, SanHash.Mask); 3994 3995 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3996 } 3997 3998 void CompilerInvocation::generateCC1CommandLine( 3999 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4000 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 4001 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 4002 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 4003 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 4004 if ((FLAGS) & options::CC1Option && \ 4005 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) \ 4006 Args.push_back(SPELLING); 4007 4008 #define OPTION_WITH_MARSHALLING_STRING( \ 4009 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4010 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4011 NORMALIZER_RET_TY, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 4012 if (((FLAGS) & options::CC1Option) && \ 4013 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) { \ 4014 if (Option::KIND##Class == Option::SeparateClass) { \ 4015 Args.push_back(SPELLING); \ 4016 Args.push_back(DENORMALIZER(SA, TABLE_INDEX, this->KEYPATH)); \ 4017 } \ 4018 } 4019 4020 #include "clang/Driver/Options.inc" 4021 #undef OPTION_WITH_MARSHALLING_STRING 4022 #undef OPTION_WITH_MARSHALLING_FLAG 4023 } 4024 4025 namespace clang { 4026 4027 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4028 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4029 DiagnosticsEngine &Diags) { 4030 return createVFSFromCompilerInvocation(CI, Diags, 4031 llvm::vfs::getRealFileSystem()); 4032 } 4033 4034 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 4035 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4036 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4037 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4038 return BaseFS; 4039 4040 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4041 // earlier vfs files are on the bottom 4042 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4043 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4044 Result->getBufferForFile(File); 4045 if (!Buffer) { 4046 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4047 continue; 4048 } 4049 4050 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4051 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4052 /*DiagContext*/ nullptr, Result); 4053 if (!FS) { 4054 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4055 continue; 4056 } 4057 4058 Result = FS; 4059 } 4060 return Result; 4061 } 4062 4063 } // namespace clang 4064