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 .Default(~0U); 771 if (Val == ~0U) 772 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 773 << A->getValue(); 774 else 775 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 776 } 777 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 778 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 779 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 780 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 781 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 782 .Default(~0U); 783 if (Val == ~0U) 784 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 785 << A->getValue(); 786 else 787 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 788 } 789 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 790 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 791 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 792 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 793 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 794 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 795 Opts.VirtualFunctionElimination = 796 Args.hasArg(OPT_fvirtual_function_elimination); 797 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 798 Opts.SplitDwarfFile = std::string(Args.getLastArgValue(OPT_split_dwarf_file)); 799 Opts.SplitDwarfOutput = 800 std::string(Args.getLastArgValue(OPT_split_dwarf_output)); 801 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 802 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 803 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 804 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 805 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 806 Opts.ForceDwarfFrameSection = Args.hasArg(OPT_fforce_dwarf_frame); 807 808 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 809 auto Split = StringRef(Arg).split('='); 810 Opts.DebugPrefixMap.insert( 811 {std::string(Split.first), std::string(Split.second)}); 812 } 813 814 if (const Arg *A = 815 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 816 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 817 818 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 819 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 820 821 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 822 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 823 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 824 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 825 826 llvm::Triple T(TargetOpts.Triple); 827 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 828 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 829 Opts.EmitCallSiteInfo = true; 830 831 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 832 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 833 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 834 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 835 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 836 OPT_fuse_register_sized_bitfield_access); 837 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 838 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 839 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 840 Args.hasArg(OPT_new_struct_path_tbaa); 841 Opts.FineGrainedBitfieldAccesses = 842 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 843 OPT_fno_fine_grained_bitfield_accesses, false); 844 Opts.DwarfDebugFlags = 845 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 846 Opts.RecordCommandLine = 847 std::string(Args.getLastArgValue(OPT_record_command_line)); 848 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 849 Opts.NoCommon = !Args.hasArg(OPT_fcommon); 850 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables); 851 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 852 Opts.OptimizeSize = getOptimizationLevelSize(Args); 853 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 854 Args.hasArg(OPT_ffreestanding)); 855 if (Opts.SimplifyLibCalls) 856 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 857 Opts.UnrollLoops = 858 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 859 (Opts.OptimizationLevel > 1)); 860 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 861 862 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 863 Opts.CallGraphProfile = !Opts.DisableIntegratedAS; 864 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 865 Opts.SampleProfileFile = 866 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 867 Opts.DebugInfoForProfiling = Args.hasFlag( 868 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 869 Opts.DebugNameTable = static_cast<unsigned>( 870 Args.hasArg(OPT_ggnu_pubnames) 871 ? llvm::DICompileUnit::DebugNameTableKind::GNU 872 : Args.hasArg(OPT_gpubnames) 873 ? llvm::DICompileUnit::DebugNameTableKind::Default 874 : llvm::DICompileUnit::DebugNameTableKind::None); 875 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 876 877 setPGOInstrumentor(Opts, Args, Diags); 878 Opts.InstrProfileOutput = 879 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 880 Opts.ProfileInstrumentUsePath = 881 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 882 if (!Opts.ProfileInstrumentUsePath.empty()) 883 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 884 Opts.ProfileRemappingFile = 885 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 886 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 887 Diags.Report(diag::err_drv_argument_only_allowed_with) 888 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 889 << "-fexperimental-new-pass-manager"; 890 } 891 892 Opts.CoverageMapping = 893 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 894 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 895 Opts.AsmVerbose = !Args.hasArg(OPT_fno_verbose_asm); 896 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 897 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 898 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 899 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 900 Opts.RegisterGlobalDtorsWithAtExit = 901 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 902 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 903 Opts.CodeModel = TargetOpts.CodeModel; 904 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 905 906 // Handle -mframe-pointer option. 907 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 908 CodeGenOptions::FramePointerKind FP; 909 StringRef Name = A->getValue(); 910 bool ValidFP = true; 911 if (Name == "none") 912 FP = CodeGenOptions::FramePointerKind::None; 913 else if (Name == "non-leaf") 914 FP = CodeGenOptions::FramePointerKind::NonLeaf; 915 else if (Name == "all") 916 FP = CodeGenOptions::FramePointerKind::All; 917 else { 918 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 919 Success = false; 920 ValidFP = false; 921 } 922 if (ValidFP) 923 Opts.setFramePointer(FP); 924 } 925 926 Opts.DisableFree = Args.hasArg(OPT_disable_free); 927 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 928 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 929 Opts.NoEscapingBlockTailCalls = 930 Args.hasArg(OPT_fno_escaping_block_tail_calls); 931 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 932 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 933 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 934 Args.hasArg(OPT_cl_fast_relaxed_math); 935 Opts.LimitFloatPrecision = 936 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 937 Opts.CorrectlyRoundedDivSqrt = 938 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 939 Opts.UniformWGSize = 940 Args.hasArg(OPT_cl_uniform_work_group_size); 941 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 942 Opts.StrictFloatCastOverflow = 943 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 944 945 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_fno_zero_initialized_in_bss); 946 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 947 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 948 Opts.SmallDataLimit = 949 getLastArgIntValue(Args, OPT_msmall_data_limit, 0, Diags); 950 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 951 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 952 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 953 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 954 Opts.IncrementalLinkerCompatible = 955 Args.hasArg(OPT_mincremental_linker_compatible); 956 Opts.PIECopyRelocations = 957 Args.hasArg(OPT_mpie_copy_relocations); 958 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 959 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 960 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 961 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 962 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 963 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 964 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 965 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 966 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 967 Opts.ThreadModel = 968 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 969 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 970 Diags.Report(diag::err_drv_invalid_value) 971 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 972 << Opts.ThreadModel; 973 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 974 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 975 976 Opts.BBSections = 977 std::string(Args.getLastArgValue(OPT_fbasic_block_sections_EQ, "none")); 978 979 // Basic Block Sections implies Function Sections. 980 Opts.FunctionSections = 981 Args.hasArg(OPT_ffunction_sections) || 982 (Opts.BBSections != "none" && Opts.BBSections != "labels"); 983 984 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 985 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 986 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 987 Opts.UniqueBasicBlockSectionNames = 988 Args.hasArg(OPT_funique_basic_block_section_names); 989 Opts.UniqueInternalLinkageNames = 990 Args.hasArg(OPT_funique_internal_linkage_names); 991 992 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 993 994 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 995 996 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 997 998 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 999 1000 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1001 Opts.PrepareForThinLTO = false; 1002 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1003 StringRef S = A->getValue(); 1004 if (S == "thin") 1005 Opts.PrepareForThinLTO = true; 1006 else if (S != "full") 1007 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1008 } 1009 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 1010 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 1011 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1012 if (IK.getLanguage() != Language::LLVM_IR) 1013 Diags.Report(diag::err_drv_argument_only_allowed_with) 1014 << A->getAsString(Args) << "-x ir"; 1015 Opts.ThinLTOIndexFile = 1016 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1017 } 1018 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1019 Opts.SaveTempsFilePrefix = 1020 llvm::StringSwitch<std::string>(A->getValue()) 1021 .Case("obj", FrontendOpts.OutputFile) 1022 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 1023 1024 Opts.ThinLinkBitcodeFile = 1025 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 1026 1027 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 1028 1029 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 1030 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 1031 1032 Opts.PreferVectorWidth = 1033 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1034 1035 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1036 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1037 1038 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1039 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1040 1041 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 1042 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1043 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1044 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1045 Opts.CoverageDataFile = 1046 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1047 Opts.CoverageNotesFile = 1048 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1049 Opts.ProfileFilterFiles = 1050 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1051 Opts.ProfileExcludeFiles = 1052 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1053 if (Args.hasArg(OPT_coverage_version_EQ)) { 1054 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1055 if (CoverageVersion.size() != 4) { 1056 Diags.Report(diag::err_drv_invalid_value) 1057 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1058 << CoverageVersion; 1059 } else { 1060 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1061 } 1062 } 1063 } 1064 // Handle -fembed-bitcode option. 1065 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1066 StringRef Name = A->getValue(); 1067 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1068 .Case("off", CodeGenOptions::Embed_Off) 1069 .Case("all", CodeGenOptions::Embed_All) 1070 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1071 .Case("marker", CodeGenOptions::Embed_Marker) 1072 .Default(~0U); 1073 if (Model == ~0U) { 1074 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1075 Success = false; 1076 } else 1077 Opts.setEmbedBitcode( 1078 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1079 } 1080 // FIXME: For backend options that are not yet recorded as function 1081 // attributes in the IR, keep track of them so we can embed them in a 1082 // separate data section and use them when building the bitcode. 1083 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1084 for (const auto &A : Args) { 1085 // Do not encode output and input. 1086 if (A->getOption().getID() == options::OPT_o || 1087 A->getOption().getID() == options::OPT_INPUT || 1088 A->getOption().getID() == options::OPT_x || 1089 A->getOption().getID() == options::OPT_fembed_bitcode || 1090 (A->getOption().getGroup().isValid() && 1091 A->getOption().getGroup().getID() == options::OPT_W_Group)) 1092 continue; 1093 ArgStringList ASL; 1094 A->render(Args, ASL); 1095 for (const auto &arg : ASL) { 1096 StringRef ArgStr(arg); 1097 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1098 // using \00 to separate each commandline options. 1099 Opts.CmdArgs.push_back('\0'); 1100 } 1101 } 1102 } 1103 1104 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1105 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1106 Opts.InstrumentFunctionsAfterInlining = 1107 Args.hasArg(OPT_finstrument_functions_after_inlining); 1108 Opts.InstrumentFunctionEntryBare = 1109 Args.hasArg(OPT_finstrument_function_entry_bare); 1110 1111 Opts.XRayInstrumentFunctions = 1112 Args.hasArg(OPT_fxray_instrument); 1113 Opts.XRayAlwaysEmitCustomEvents = 1114 Args.hasArg(OPT_fxray_always_emit_customevents); 1115 Opts.XRayAlwaysEmitTypedEvents = 1116 Args.hasArg(OPT_fxray_always_emit_typedevents); 1117 Opts.XRayInstructionThreshold = 1118 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1119 Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops); 1120 Opts.XRayOmitFunctionIndex = Args.hasArg(OPT_fno_xray_function_index); 1121 1122 auto XRayInstrBundles = 1123 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1124 if (XRayInstrBundles.empty()) 1125 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1126 else 1127 for (const auto &A : XRayInstrBundles) 1128 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1129 Diags, Opts.XRayInstrumentationBundle); 1130 1131 Opts.PatchableFunctionEntryCount = 1132 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1133 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1134 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1135 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1136 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1137 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1138 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1139 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1140 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1141 1142 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1143 StringRef Name = A->getValue(); 1144 if (Name == "full") { 1145 Opts.CFProtectionReturn = 1; 1146 Opts.CFProtectionBranch = 1; 1147 } else if (Name == "return") 1148 Opts.CFProtectionReturn = 1; 1149 else if (Name == "branch") 1150 Opts.CFProtectionBranch = 1; 1151 else if (Name != "none") { 1152 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1153 Success = false; 1154 } 1155 } 1156 1157 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1158 OPT_compress_debug_sections_EQ)) { 1159 if (A->getOption().getID() == OPT_compress_debug_sections) { 1160 // TODO: be more clever about the compression type auto-detection 1161 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1162 } else { 1163 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1164 .Case("none", llvm::DebugCompressionType::None) 1165 .Case("zlib", llvm::DebugCompressionType::Z) 1166 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1167 .Default(llvm::DebugCompressionType::None); 1168 Opts.setCompressDebugSections(DCT); 1169 } 1170 } 1171 1172 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1173 Opts.DebugCompilationDir = 1174 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1175 for (auto *A : 1176 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1177 CodeGenOptions::BitcodeFileToLink F; 1178 F.Filename = A->getValue(); 1179 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1180 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1181 // When linking CUDA bitcode, propagate function attributes so that 1182 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1183 F.PropagateAttrs = true; 1184 F.Internalize = true; 1185 } 1186 Opts.LinkBitcodeFiles.push_back(F); 1187 } 1188 Opts.SanitizeCoverageType = 1189 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1190 Opts.SanitizeCoverageIndirectCalls = 1191 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1192 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1193 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1194 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1195 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1196 Opts.SanitizeCoverage8bitCounters = 1197 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1198 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1199 Opts.SanitizeCoverageTracePCGuard = 1200 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1201 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1202 Opts.SanitizeCoverageInline8bitCounters = 1203 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1204 Opts.SanitizeCoverageInlineBoolFlag = 1205 Args.hasArg(OPT_fsanitize_coverage_inline_bool_flag); 1206 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1207 Opts.SanitizeCoverageStackDepth = 1208 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1209 Opts.SanitizeCoverageAllowlistFiles = 1210 Args.getAllArgValues(OPT_fsanitize_coverage_allowlist); 1211 Opts.SanitizeCoverageBlocklistFiles = 1212 Args.getAllArgValues(OPT_fsanitize_coverage_blocklist); 1213 Opts.SanitizeMemoryTrackOrigins = 1214 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1215 Opts.SanitizeMemoryUseAfterDtor = 1216 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1217 OPT_fno_sanitize_memory_use_after_dtor, 1218 false); 1219 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1220 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1221 Opts.SanitizeCfiICallGeneralizePointers = 1222 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1223 Opts.SanitizeCfiCanonicalJumpTables = 1224 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1225 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1226 if (Arg *A = Args.getLastArg( 1227 OPT_fsanitize_address_poison_custom_array_cookie, 1228 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1229 Opts.SanitizeAddressPoisonCustomArrayCookie = 1230 A->getOption().getID() == 1231 OPT_fsanitize_address_poison_custom_array_cookie; 1232 } 1233 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1234 OPT_fno_sanitize_address_use_after_scope)) { 1235 Opts.SanitizeAddressUseAfterScope = 1236 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1237 } 1238 Opts.SanitizeAddressGlobalsDeadStripping = 1239 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1240 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1241 OPT_fno_sanitize_address_use_odr_indicator)) { 1242 Opts.SanitizeAddressUseOdrIndicator = 1243 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1244 } 1245 Opts.SSPBufferSize = 1246 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1247 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1248 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1249 StringRef Val = A->getValue(); 1250 unsigned StackAlignment = Opts.StackAlignment; 1251 Val.getAsInteger(10, StackAlignment); 1252 Opts.StackAlignment = StackAlignment; 1253 } 1254 1255 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1256 StringRef Val = A->getValue(); 1257 unsigned StackProbeSize = Opts.StackProbeSize; 1258 Val.getAsInteger(0, StackProbeSize); 1259 Opts.StackProbeSize = StackProbeSize; 1260 } 1261 1262 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1263 1264 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1265 1266 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1267 StringRef Name = A->getValue(); 1268 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1269 .Case("legacy", CodeGenOptions::Legacy) 1270 .Case("non-legacy", CodeGenOptions::NonLegacy) 1271 .Case("mixed", CodeGenOptions::Mixed) 1272 .Default(~0U); 1273 if (Method == ~0U) { 1274 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1275 Success = false; 1276 } else { 1277 Opts.setObjCDispatchMethod( 1278 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1279 } 1280 } 1281 1282 1283 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1284 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1285 1286 if (Args.getLastArg(OPT_femulated_tls) || 1287 Args.getLastArg(OPT_fno_emulated_tls)) { 1288 Opts.ExplicitEmulatedTLS = true; 1289 Opts.EmulatedTLS = 1290 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1291 } 1292 1293 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1294 StringRef Name = A->getValue(); 1295 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1296 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1297 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1298 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1299 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1300 .Default(~0U); 1301 if (Model == ~0U) { 1302 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1303 Success = false; 1304 } else { 1305 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1306 } 1307 } 1308 1309 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1310 1311 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1312 StringRef Val = A->getValue(); 1313 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1314 if (!Opts.FPDenormalMode.isValid()) 1315 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1316 } 1317 1318 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1319 StringRef Val = A->getValue(); 1320 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1321 if (!Opts.FP32DenormalMode.isValid()) 1322 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1323 } 1324 1325 // X86_32 has -fppc-struct-return and -freg-struct-return. 1326 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1327 if (Arg *A = 1328 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1329 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1330 // TODO: We might want to consider enabling these options on AIX in the 1331 // future. 1332 if (T.isOSAIX()) 1333 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1334 << A->getSpelling() << T.str(); 1335 1336 const Option &O = A->getOption(); 1337 if (O.matches(OPT_fpcc_struct_return) || 1338 O.matches(OPT_maix_struct_return)) { 1339 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1340 } else { 1341 assert(O.matches(OPT_freg_struct_return) || 1342 O.matches(OPT_msvr4_struct_return)); 1343 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1344 } 1345 } 1346 1347 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1348 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1349 bool NeedLocTracking = false; 1350 1351 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1352 if (!Opts.OptRecordFile.empty()) 1353 NeedLocTracking = true; 1354 1355 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1356 Opts.OptRecordPasses = A->getValue(); 1357 NeedLocTracking = true; 1358 } 1359 1360 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1361 Opts.OptRecordFormat = A->getValue(); 1362 NeedLocTracking = true; 1363 } 1364 1365 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1366 Opts.OptimizationRemarkPattern = 1367 GenerateOptimizationRemarkRegex(Diags, Args, A); 1368 NeedLocTracking = true; 1369 } 1370 1371 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1372 Opts.OptimizationRemarkMissedPattern = 1373 GenerateOptimizationRemarkRegex(Diags, Args, A); 1374 NeedLocTracking = true; 1375 } 1376 1377 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1378 Opts.OptimizationRemarkAnalysisPattern = 1379 GenerateOptimizationRemarkRegex(Diags, Args, A); 1380 NeedLocTracking = true; 1381 } 1382 1383 Opts.DiagnosticsWithHotness = 1384 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1385 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1386 bool UsingProfile = UsingSampleProfile || 1387 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1388 1389 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1390 // An IR file will contain PGO as metadata 1391 IK.getLanguage() != Language::LLVM_IR) 1392 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1393 << "-fdiagnostics-show-hotness"; 1394 1395 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1396 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1397 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1398 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1399 << "-fdiagnostics-hotness-threshold="; 1400 1401 // If the user requested to use a sample profile for PGO, then the 1402 // backend will need to track source location information so the profile 1403 // can be incorporated into the IR. 1404 if (UsingSampleProfile) 1405 NeedLocTracking = true; 1406 1407 // If the user requested a flag that requires source locations available in 1408 // the backend, make sure that the backend tracks source location information. 1409 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1410 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1411 1412 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1413 1414 // Parse -fsanitize-recover= arguments. 1415 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1416 parseSanitizerKinds("-fsanitize-recover=", 1417 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1418 Opts.SanitizeRecover); 1419 parseSanitizerKinds("-fsanitize-trap=", 1420 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1421 Opts.SanitizeTrap); 1422 1423 Opts.CudaGpuBinaryFileName = 1424 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1425 1426 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1427 1428 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1429 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1430 1431 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1432 1433 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1434 1435 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1436 1437 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1438 1439 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1440 1441 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1442 1443 Opts.SymbolPartition = 1444 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1445 1446 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1447 return Success; 1448 } 1449 1450 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1451 ArgList &Args) { 1452 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1453 Opts.Targets = Args.getAllArgValues(OPT_MT); 1454 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1455 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1456 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1457 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1458 Opts.HeaderIncludeOutputFile = 1459 std::string(Args.getLastArgValue(OPT_header_include_file)); 1460 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1461 if (Args.hasArg(OPT_show_includes)) { 1462 // Writing both /showIncludes and preprocessor output to stdout 1463 // would produce interleaved output, so use stderr for /showIncludes. 1464 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1465 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1466 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1467 else 1468 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1469 } else { 1470 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1471 } 1472 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1473 Opts.ModuleDependencyOutputDir = 1474 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1475 if (Args.hasArg(OPT_MV)) 1476 Opts.OutputFormat = DependencyOutputFormat::NMake; 1477 // Add sanitizer blacklists as extra dependencies. 1478 // They won't be discovered by the regular preprocessor, so 1479 // we let make / ninja to know about this implicit dependency. 1480 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1481 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1482 StringRef Val = A->getValue(); 1483 if (Val.find('=') == StringRef::npos) 1484 Opts.ExtraDeps.push_back(std::string(Val)); 1485 } 1486 if (Opts.IncludeSystemHeaders) { 1487 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1488 StringRef Val = A->getValue(); 1489 if (Val.find('=') == StringRef::npos) 1490 Opts.ExtraDeps.push_back(std::string(Val)); 1491 } 1492 } 1493 } 1494 1495 // Propagate the extra dependencies. 1496 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1497 Opts.ExtraDeps.push_back(A->getValue()); 1498 } 1499 1500 // Only the -fmodule-file=<file> form. 1501 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1502 StringRef Val = A->getValue(); 1503 if (Val.find('=') == StringRef::npos) 1504 Opts.ExtraDeps.push_back(std::string(Val)); 1505 } 1506 } 1507 1508 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1509 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1510 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1511 // Support both clang's -f[no-]color-diagnostics and gcc's 1512 // -f[no-]diagnostics-colors[=never|always|auto]. 1513 enum { 1514 Colors_On, 1515 Colors_Off, 1516 Colors_Auto 1517 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1518 for (auto *A : Args) { 1519 const Option &O = A->getOption(); 1520 if (O.matches(options::OPT_fcolor_diagnostics) || 1521 O.matches(options::OPT_fdiagnostics_color)) { 1522 ShowColors = Colors_On; 1523 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1524 O.matches(options::OPT_fno_diagnostics_color)) { 1525 ShowColors = Colors_Off; 1526 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1527 StringRef Value(A->getValue()); 1528 if (Value == "always") 1529 ShowColors = Colors_On; 1530 else if (Value == "never") 1531 ShowColors = Colors_Off; 1532 else if (Value == "auto") 1533 ShowColors = Colors_Auto; 1534 } 1535 } 1536 return ShowColors == Colors_On || 1537 (ShowColors == Colors_Auto && 1538 llvm::sys::Process::StandardErrHasColors()); 1539 } 1540 1541 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1542 DiagnosticsEngine *Diags) { 1543 bool Success = true; 1544 for (const auto &Prefix : VerifyPrefixes) { 1545 // Every prefix must start with a letter and contain only alphanumeric 1546 // characters, hyphens, and underscores. 1547 auto BadChar = llvm::find_if(Prefix, [](char C) { 1548 return !isAlphanumeric(C) && C != '-' && C != '_'; 1549 }); 1550 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1551 Success = false; 1552 if (Diags) { 1553 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1554 Diags->Report(diag::note_drv_verify_prefix_spelling); 1555 } 1556 } 1557 } 1558 return Success; 1559 } 1560 1561 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1562 DiagnosticsEngine *Diags, 1563 bool DefaultDiagColor) { 1564 bool Success = true; 1565 1566 Opts.DiagnosticLogFile = 1567 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1568 if (Arg *A = 1569 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1570 Opts.DiagnosticSerializationFile = A->getValue(); 1571 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1572 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1573 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1574 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1575 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1576 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1577 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1578 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1579 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1580 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1581 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1582 1583 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1584 1585 // Default behavior is to not to show note include stacks. 1586 Opts.ShowNoteIncludeStack = false; 1587 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1588 OPT_fno_diagnostics_show_note_include_stack)) 1589 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1590 Opts.ShowNoteIncludeStack = true; 1591 1592 StringRef ShowOverloads = 1593 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1594 if (ShowOverloads == "best") 1595 Opts.setShowOverloads(Ovl_Best); 1596 else if (ShowOverloads == "all") 1597 Opts.setShowOverloads(Ovl_All); 1598 else { 1599 Success = false; 1600 if (Diags) 1601 Diags->Report(diag::err_drv_invalid_value) 1602 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1603 << ShowOverloads; 1604 } 1605 1606 StringRef ShowCategory = 1607 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1608 if (ShowCategory == "none") 1609 Opts.ShowCategories = 0; 1610 else if (ShowCategory == "id") 1611 Opts.ShowCategories = 1; 1612 else if (ShowCategory == "name") 1613 Opts.ShowCategories = 2; 1614 else { 1615 Success = false; 1616 if (Diags) 1617 Diags->Report(diag::err_drv_invalid_value) 1618 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1619 << ShowCategory; 1620 } 1621 1622 StringRef Format = 1623 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1624 if (Format == "clang") 1625 Opts.setFormat(DiagnosticOptions::Clang); 1626 else if (Format == "msvc") 1627 Opts.setFormat(DiagnosticOptions::MSVC); 1628 else if (Format == "msvc-fallback") { 1629 Opts.setFormat(DiagnosticOptions::MSVC); 1630 Opts.CLFallbackMode = true; 1631 } else if (Format == "vi") 1632 Opts.setFormat(DiagnosticOptions::Vi); 1633 else { 1634 Success = false; 1635 if (Diags) 1636 Diags->Report(diag::err_drv_invalid_value) 1637 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1638 << Format; 1639 } 1640 1641 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1642 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1643 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1644 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1645 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1646 if (Args.hasArg(OPT_verify)) 1647 Opts.VerifyPrefixes.push_back("expected"); 1648 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1649 // then sort it to prepare for fast lookup using std::binary_search. 1650 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1651 Opts.VerifyDiagnostics = false; 1652 Success = false; 1653 } 1654 else 1655 llvm::sort(Opts.VerifyPrefixes); 1656 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1657 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1658 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1659 Diags, DiagMask); 1660 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1661 DiagMask = DiagnosticLevelMask::All; 1662 Opts.setVerifyIgnoreUnexpected(DiagMask); 1663 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1664 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1665 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1666 Opts.MacroBacktraceLimit = 1667 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1668 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1669 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1670 Args, OPT_ftemplate_backtrace_limit, 1671 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1672 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1673 Args, OPT_fconstexpr_backtrace_limit, 1674 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1675 Opts.SpellCheckingLimit = getLastArgIntValue( 1676 Args, OPT_fspell_checking_limit, 1677 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1678 Opts.SnippetLineLimit = getLastArgIntValue( 1679 Args, OPT_fcaret_diagnostics_max_lines, 1680 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1681 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1682 DiagnosticOptions::DefaultTabStop, Diags); 1683 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1684 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1685 if (Diags) 1686 Diags->Report(diag::warn_ignoring_ftabstop_value) 1687 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1688 } 1689 Opts.MessageLength = 1690 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1691 1692 Opts.UndefPrefixes = Args.getAllArgValues(OPT_Wundef_prefix_EQ); 1693 1694 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1695 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1696 1697 return Success; 1698 } 1699 1700 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1701 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1702 } 1703 1704 /// Parse the argument to the -ftest-module-file-extension 1705 /// command-line argument. 1706 /// 1707 /// \returns true on error, false on success. 1708 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1709 std::string &BlockName, 1710 unsigned &MajorVersion, 1711 unsigned &MinorVersion, 1712 bool &Hashed, 1713 std::string &UserInfo) { 1714 SmallVector<StringRef, 5> Args; 1715 Arg.split(Args, ':', 5); 1716 if (Args.size() < 5) 1717 return true; 1718 1719 BlockName = std::string(Args[0]); 1720 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1721 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1722 if (Args[3].getAsInteger(2, Hashed)) return true; 1723 if (Args.size() > 4) 1724 UserInfo = std::string(Args[4]); 1725 return false; 1726 } 1727 1728 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1729 DiagnosticsEngine &Diags, 1730 bool &IsHeaderFile) { 1731 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1732 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1733 switch (A->getOption().getID()) { 1734 default: 1735 llvm_unreachable("Invalid option in group!"); 1736 case OPT_ast_list: 1737 Opts.ProgramAction = frontend::ASTDeclList; break; 1738 case OPT_ast_dump_all_EQ: 1739 case OPT_ast_dump_EQ: { 1740 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1741 .CaseLower("default", ADOF_Default) 1742 .CaseLower("json", ADOF_JSON) 1743 .Default(std::numeric_limits<unsigned>::max()); 1744 1745 if (Val != std::numeric_limits<unsigned>::max()) 1746 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1747 else { 1748 Diags.Report(diag::err_drv_invalid_value) 1749 << A->getAsString(Args) << A->getValue(); 1750 Opts.ASTDumpFormat = ADOF_Default; 1751 } 1752 LLVM_FALLTHROUGH; 1753 } 1754 case OPT_ast_dump: 1755 case OPT_ast_dump_all: 1756 case OPT_ast_dump_lookups: 1757 case OPT_ast_dump_decl_types: 1758 Opts.ProgramAction = frontend::ASTDump; break; 1759 case OPT_ast_print: 1760 Opts.ProgramAction = frontend::ASTPrint; break; 1761 case OPT_ast_view: 1762 Opts.ProgramAction = frontend::ASTView; break; 1763 case OPT_compiler_options_dump: 1764 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1765 case OPT_dump_raw_tokens: 1766 Opts.ProgramAction = frontend::DumpRawTokens; break; 1767 case OPT_dump_tokens: 1768 Opts.ProgramAction = frontend::DumpTokens; break; 1769 case OPT_S: 1770 Opts.ProgramAction = frontend::EmitAssembly; break; 1771 case OPT_emit_llvm_bc: 1772 Opts.ProgramAction = frontend::EmitBC; break; 1773 case OPT_emit_html: 1774 Opts.ProgramAction = frontend::EmitHTML; break; 1775 case OPT_emit_llvm: 1776 Opts.ProgramAction = frontend::EmitLLVM; break; 1777 case OPT_emit_llvm_only: 1778 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1779 case OPT_emit_codegen_only: 1780 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1781 case OPT_emit_obj: 1782 Opts.ProgramAction = frontend::EmitObj; break; 1783 case OPT_fixit_EQ: 1784 Opts.FixItSuffix = A->getValue(); 1785 LLVM_FALLTHROUGH; 1786 case OPT_fixit: 1787 Opts.ProgramAction = frontend::FixIt; break; 1788 case OPT_emit_module: 1789 Opts.ProgramAction = frontend::GenerateModule; break; 1790 case OPT_emit_module_interface: 1791 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1792 case OPT_emit_header_module: 1793 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1794 case OPT_emit_pch: 1795 Opts.ProgramAction = frontend::GeneratePCH; break; 1796 case OPT_emit_interface_stubs: { 1797 StringRef ArgStr = 1798 Args.hasArg(OPT_interface_stub_version_EQ) 1799 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1800 : "experimental-ifs-v2"; 1801 if (ArgStr == "experimental-yaml-elf-v1" || 1802 ArgStr == "experimental-ifs-v1" || 1803 ArgStr == "experimental-tapi-elf-v1") { 1804 std::string ErrorMessage = 1805 "Invalid interface stub format: " + ArgStr.str() + 1806 " is deprecated."; 1807 Diags.Report(diag::err_drv_invalid_value) 1808 << "Must specify a valid interface stub format type, ie: " 1809 "-interface-stub-version=experimental-ifs-v2" 1810 << ErrorMessage; 1811 } else if (!ArgStr.startswith("experimental-ifs-")) { 1812 std::string ErrorMessage = 1813 "Invalid interface stub format: " + ArgStr.str() + "."; 1814 Diags.Report(diag::err_drv_invalid_value) 1815 << "Must specify a valid interface stub format type, ie: " 1816 "-interface-stub-version=experimental-ifs-v2" 1817 << ErrorMessage; 1818 } else { 1819 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1820 } 1821 break; 1822 } 1823 case OPT_init_only: 1824 Opts.ProgramAction = frontend::InitOnly; break; 1825 case OPT_fsyntax_only: 1826 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1827 case OPT_module_file_info: 1828 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1829 case OPT_verify_pch: 1830 Opts.ProgramAction = frontend::VerifyPCH; break; 1831 case OPT_print_preamble: 1832 Opts.ProgramAction = frontend::PrintPreamble; break; 1833 case OPT_E: 1834 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1835 case OPT_templight_dump: 1836 Opts.ProgramAction = frontend::TemplightDump; break; 1837 case OPT_rewrite_macros: 1838 Opts.ProgramAction = frontend::RewriteMacros; break; 1839 case OPT_rewrite_objc: 1840 Opts.ProgramAction = frontend::RewriteObjC; break; 1841 case OPT_rewrite_test: 1842 Opts.ProgramAction = frontend::RewriteTest; break; 1843 case OPT_analyze: 1844 Opts.ProgramAction = frontend::RunAnalysis; break; 1845 case OPT_migrate: 1846 Opts.ProgramAction = frontend::MigrateSource; break; 1847 case OPT_Eonly: 1848 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1849 case OPT_print_dependency_directives_minimized_source: 1850 Opts.ProgramAction = 1851 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1852 break; 1853 } 1854 } 1855 1856 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1857 Opts.Plugins.emplace_back(A->getValue(0)); 1858 Opts.ProgramAction = frontend::PluginAction; 1859 Opts.ActionName = A->getValue(); 1860 } 1861 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1862 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1863 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1864 1865 for (const std::string &Arg : 1866 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1867 std::string BlockName; 1868 unsigned MajorVersion; 1869 unsigned MinorVersion; 1870 bool Hashed; 1871 std::string UserInfo; 1872 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1873 MinorVersion, Hashed, UserInfo)) { 1874 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1875 1876 continue; 1877 } 1878 1879 // Add the testing module file extension. 1880 Opts.ModuleFileExtensions.push_back( 1881 std::make_shared<TestModuleFileExtension>( 1882 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1883 } 1884 1885 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1886 Opts.CodeCompletionAt = 1887 ParsedSourceLocation::FromString(A->getValue()); 1888 if (Opts.CodeCompletionAt.FileName.empty()) 1889 Diags.Report(diag::err_drv_invalid_value) 1890 << A->getAsString(Args) << A->getValue(); 1891 } 1892 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1893 1894 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1895 Opts.Plugins = Args.getAllArgValues(OPT_load); 1896 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1897 Opts.ShowHelp = Args.hasArg(OPT_help); 1898 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1899 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1900 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1901 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1902 Opts.TimeTraceGranularity = getLastArgIntValue( 1903 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1904 Opts.ShowVersion = Args.hasArg(OPT_version); 1905 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1906 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1907 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1908 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1909 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1910 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1911 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1912 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1913 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1914 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1915 Opts.ASTDumpDeclTypes = Args.hasArg(OPT_ast_dump_decl_types); 1916 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1917 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1918 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1919 // Only the -fmodule-file=<file> form. 1920 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1921 StringRef Val = A->getValue(); 1922 if (Val.find('=') == StringRef::npos) 1923 Opts.ModuleFiles.push_back(std::string(Val)); 1924 } 1925 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1926 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1927 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1928 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1929 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 1930 1931 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1932 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1933 << "-emit-module"; 1934 1935 Opts.CodeCompleteOpts.IncludeMacros 1936 = Args.hasArg(OPT_code_completion_macros); 1937 Opts.CodeCompleteOpts.IncludeCodePatterns 1938 = Args.hasArg(OPT_code_completion_patterns); 1939 Opts.CodeCompleteOpts.IncludeGlobals 1940 = !Args.hasArg(OPT_no_code_completion_globals); 1941 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1942 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1943 Opts.CodeCompleteOpts.IncludeBriefComments 1944 = Args.hasArg(OPT_code_completion_brief_comments); 1945 Opts.CodeCompleteOpts.IncludeFixIts 1946 = Args.hasArg(OPT_code_completion_with_fixits); 1947 1948 Opts.OverrideRecordLayoutsFile = 1949 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1950 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1951 if (Args.hasArg(OPT_aux_target_cpu)) 1952 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1953 if (Args.hasArg(OPT_aux_target_feature)) 1954 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1955 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1956 1957 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1958 OPT_arcmt_modify, 1959 OPT_arcmt_migrate)) { 1960 switch (A->getOption().getID()) { 1961 default: 1962 llvm_unreachable("missed a case"); 1963 case OPT_arcmt_check: 1964 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1965 break; 1966 case OPT_arcmt_modify: 1967 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1968 break; 1969 case OPT_arcmt_migrate: 1970 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1971 break; 1972 } 1973 } 1974 Opts.MTMigrateDir = 1975 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1976 Opts.ARCMTMigrateReportOut = 1977 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1978 Opts.ARCMTMigrateEmitARCErrors 1979 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1980 1981 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1982 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1983 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1984 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1985 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1986 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1987 if (Args.hasArg(OPT_objcmt_migrate_property)) 1988 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1989 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1990 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1991 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1992 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1993 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1994 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1995 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1996 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1997 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1998 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1999 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 2000 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 2001 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 2002 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 2003 if (Args.hasArg(OPT_objcmt_atomic_property)) 2004 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 2005 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 2006 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 2007 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 2008 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 2009 if (Args.hasArg(OPT_objcmt_migrate_all)) 2010 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 2011 2012 Opts.ObjCMTWhiteListPath = 2013 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 2014 2015 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2016 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2017 Diags.Report(diag::err_drv_argument_not_allowed_with) 2018 << "ARC migration" << "ObjC migration"; 2019 } 2020 2021 InputKind DashX(Language::Unknown); 2022 if (const Arg *A = Args.getLastArg(OPT_x)) { 2023 StringRef XValue = A->getValue(); 2024 2025 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2026 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2027 bool Preprocessed = XValue.consume_back("-cpp-output"); 2028 bool ModuleMap = XValue.consume_back("-module-map"); 2029 IsHeaderFile = 2030 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 2031 2032 // Principal languages. 2033 DashX = llvm::StringSwitch<InputKind>(XValue) 2034 .Case("c", Language::C) 2035 .Case("cl", Language::OpenCL) 2036 .Case("cuda", Language::CUDA) 2037 .Case("hip", Language::HIP) 2038 .Case("c++", Language::CXX) 2039 .Case("objective-c", Language::ObjC) 2040 .Case("objective-c++", Language::ObjCXX) 2041 .Case("renderscript", Language::RenderScript) 2042 .Default(Language::Unknown); 2043 2044 // "objc[++]-cpp-output" is an acceptable synonym for 2045 // "objective-c[++]-cpp-output". 2046 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2047 DashX = llvm::StringSwitch<InputKind>(XValue) 2048 .Case("objc", Language::ObjC) 2049 .Case("objc++", Language::ObjCXX) 2050 .Default(Language::Unknown); 2051 2052 // Some special cases cannot be combined with suffixes. 2053 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2054 DashX = llvm::StringSwitch<InputKind>(XValue) 2055 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2056 .Case("assembler-with-cpp", Language::Asm) 2057 .Cases("ast", "pcm", 2058 InputKind(Language::Unknown, InputKind::Precompiled)) 2059 .Case("ir", Language::LLVM_IR) 2060 .Default(Language::Unknown); 2061 2062 if (DashX.isUnknown()) 2063 Diags.Report(diag::err_drv_invalid_value) 2064 << A->getAsString(Args) << A->getValue(); 2065 2066 if (Preprocessed) 2067 DashX = DashX.getPreprocessed(); 2068 if (ModuleMap) 2069 DashX = DashX.withFormat(InputKind::ModuleMap); 2070 } 2071 2072 // '-' is the default input if none is given. 2073 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2074 Opts.Inputs.clear(); 2075 if (Inputs.empty()) 2076 Inputs.push_back("-"); 2077 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2078 InputKind IK = DashX; 2079 if (IK.isUnknown()) { 2080 IK = FrontendOptions::getInputKindForExtension( 2081 StringRef(Inputs[i]).rsplit('.').second); 2082 // FIXME: Warn on this? 2083 if (IK.isUnknown()) 2084 IK = Language::C; 2085 // FIXME: Remove this hack. 2086 if (i == 0) 2087 DashX = IK; 2088 } 2089 2090 bool IsSystem = false; 2091 2092 // The -emit-module action implicitly takes a module map. 2093 if (Opts.ProgramAction == frontend::GenerateModule && 2094 IK.getFormat() == InputKind::Source) { 2095 IK = IK.withFormat(InputKind::ModuleMap); 2096 IsSystem = Opts.IsSystemModule; 2097 } 2098 2099 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2100 } 2101 2102 return DashX; 2103 } 2104 2105 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2106 void *MainAddr) { 2107 std::string ClangExecutable = 2108 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2109 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2110 } 2111 2112 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2113 const std::string &WorkingDir) { 2114 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2115 Opts.Verbose = Args.hasArg(OPT_v); 2116 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2117 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2118 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2119 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2120 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2121 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2122 2123 // Canonicalize -fmodules-cache-path before storing it. 2124 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2125 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2126 if (WorkingDir.empty()) 2127 llvm::sys::fs::make_absolute(P); 2128 else 2129 llvm::sys::fs::make_absolute(WorkingDir, P); 2130 } 2131 llvm::sys::path::remove_dots(P); 2132 Opts.ModuleCachePath = std::string(P.str()); 2133 2134 Opts.ModuleUserBuildPath = 2135 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2136 // Only the -fmodule-file=<name>=<file> form. 2137 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2138 StringRef Val = A->getValue(); 2139 if (Val.find('=') != StringRef::npos){ 2140 auto Split = Val.split('='); 2141 Opts.PrebuiltModuleFiles.insert( 2142 {std::string(Split.first), std::string(Split.second)}); 2143 } 2144 } 2145 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2146 Opts.AddPrebuiltModulePath(A->getValue()); 2147 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2148 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2149 Opts.ModulesValidateDiagnosticOptions = 2150 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2151 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2152 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2153 Opts.ModuleCachePruneInterval = 2154 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2155 Opts.ModuleCachePruneAfter = 2156 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2157 Opts.ModulesValidateOncePerBuildSession = 2158 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2159 Opts.BuildSessionTimestamp = 2160 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2161 Opts.ModulesValidateSystemHeaders = 2162 Args.hasArg(OPT_fmodules_validate_system_headers); 2163 Opts.ValidateASTInputFilesContent = 2164 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2165 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2166 Opts.ModuleFormat = A->getValue(); 2167 2168 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2169 StringRef MacroDef = A->getValue(); 2170 Opts.ModulesIgnoreMacros.insert( 2171 llvm::CachedHashString(MacroDef.split('=').first)); 2172 } 2173 2174 // Add -I..., -F..., and -index-header-map options in order. 2175 bool IsIndexHeaderMap = false; 2176 bool IsSysrootSpecified = 2177 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2178 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2179 if (A->getOption().matches(OPT_index_header_map)) { 2180 // -index-header-map applies to the next -I or -F. 2181 IsIndexHeaderMap = true; 2182 continue; 2183 } 2184 2185 frontend::IncludeDirGroup Group = 2186 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2187 2188 bool IsFramework = A->getOption().matches(OPT_F); 2189 std::string Path = A->getValue(); 2190 2191 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2192 SmallString<32> Buffer; 2193 llvm::sys::path::append(Buffer, Opts.Sysroot, 2194 llvm::StringRef(A->getValue()).substr(1)); 2195 Path = std::string(Buffer.str()); 2196 } 2197 2198 Opts.AddPath(Path, Group, IsFramework, 2199 /*IgnoreSysroot*/ true); 2200 IsIndexHeaderMap = false; 2201 } 2202 2203 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2204 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2205 for (const auto *A : 2206 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2207 if (A->getOption().matches(OPT_iprefix)) 2208 Prefix = A->getValue(); 2209 else if (A->getOption().matches(OPT_iwithprefix)) 2210 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2211 else 2212 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2213 } 2214 2215 for (const auto *A : Args.filtered(OPT_idirafter)) 2216 Opts.AddPath(A->getValue(), frontend::After, false, true); 2217 for (const auto *A : Args.filtered(OPT_iquote)) 2218 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2219 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2220 Opts.AddPath(A->getValue(), frontend::System, false, 2221 !A->getOption().matches(OPT_iwithsysroot)); 2222 for (const auto *A : Args.filtered(OPT_iframework)) 2223 Opts.AddPath(A->getValue(), frontend::System, true, true); 2224 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2225 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2226 /*IgnoreSysRoot=*/false); 2227 2228 // Add the paths for the various language specific isystem flags. 2229 for (const auto *A : Args.filtered(OPT_c_isystem)) 2230 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2231 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2232 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2233 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2234 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2235 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2236 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2237 2238 // Add the internal paths from a driver that detects standard include paths. 2239 for (const auto *A : 2240 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2241 frontend::IncludeDirGroup Group = frontend::System; 2242 if (A->getOption().matches(OPT_internal_externc_isystem)) 2243 Group = frontend::ExternCSystem; 2244 Opts.AddPath(A->getValue(), Group, false, true); 2245 } 2246 2247 // Add the path prefixes which are implicitly treated as being system headers. 2248 for (const auto *A : 2249 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2250 Opts.AddSystemHeaderPrefix( 2251 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2252 2253 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2254 Opts.AddVFSOverlayFile(A->getValue()); 2255 } 2256 2257 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2258 const llvm::Triple &T, 2259 PreprocessorOptions &PPOpts, 2260 LangStandard::Kind LangStd) { 2261 // Set some properties which depend solely on the input kind; it would be nice 2262 // to move these to the language standard, and have the driver resolve the 2263 // input kind + language standard. 2264 // 2265 // FIXME: Perhaps a better model would be for a single source file to have 2266 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2267 // simultaneously active? 2268 if (IK.getLanguage() == Language::Asm) { 2269 Opts.AsmPreprocessor = 1; 2270 } else if (IK.isObjectiveC()) { 2271 Opts.ObjC = 1; 2272 } 2273 2274 if (LangStd == LangStandard::lang_unspecified) { 2275 // Based on the base language, pick one. 2276 switch (IK.getLanguage()) { 2277 case Language::Unknown: 2278 case Language::LLVM_IR: 2279 llvm_unreachable("Invalid input kind!"); 2280 case Language::OpenCL: 2281 LangStd = LangStandard::lang_opencl10; 2282 break; 2283 case Language::CUDA: 2284 LangStd = LangStandard::lang_cuda; 2285 break; 2286 case Language::Asm: 2287 case Language::C: 2288 #if defined(CLANG_DEFAULT_STD_C) 2289 LangStd = CLANG_DEFAULT_STD_C; 2290 #else 2291 // The PS4 uses C99 as the default C standard. 2292 if (T.isPS4()) 2293 LangStd = LangStandard::lang_gnu99; 2294 else 2295 LangStd = LangStandard::lang_gnu17; 2296 #endif 2297 break; 2298 case Language::ObjC: 2299 #if defined(CLANG_DEFAULT_STD_C) 2300 LangStd = CLANG_DEFAULT_STD_C; 2301 #else 2302 LangStd = LangStandard::lang_gnu11; 2303 #endif 2304 break; 2305 case Language::CXX: 2306 case Language::ObjCXX: 2307 #if defined(CLANG_DEFAULT_STD_CXX) 2308 LangStd = CLANG_DEFAULT_STD_CXX; 2309 #else 2310 LangStd = LangStandard::lang_gnucxx14; 2311 #endif 2312 break; 2313 case Language::RenderScript: 2314 LangStd = LangStandard::lang_c99; 2315 break; 2316 case Language::HIP: 2317 LangStd = LangStandard::lang_hip; 2318 break; 2319 } 2320 } 2321 2322 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2323 Opts.LineComment = Std.hasLineComments(); 2324 Opts.C99 = Std.isC99(); 2325 Opts.C11 = Std.isC11(); 2326 Opts.C17 = Std.isC17(); 2327 Opts.C2x = Std.isC2x(); 2328 Opts.CPlusPlus = Std.isCPlusPlus(); 2329 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2330 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2331 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2332 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 2333 Opts.Digraphs = Std.hasDigraphs(); 2334 Opts.GNUMode = Std.isGNUMode(); 2335 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2336 Opts.GNUCVersion = 0; 2337 Opts.HexFloats = Std.hasHexFloats(); 2338 Opts.ImplicitInt = Std.hasImplicitInt(); 2339 2340 // Set OpenCL Version. 2341 Opts.OpenCL = Std.isOpenCL(); 2342 if (LangStd == LangStandard::lang_opencl10) 2343 Opts.OpenCLVersion = 100; 2344 else if (LangStd == LangStandard::lang_opencl11) 2345 Opts.OpenCLVersion = 110; 2346 else if (LangStd == LangStandard::lang_opencl12) 2347 Opts.OpenCLVersion = 120; 2348 else if (LangStd == LangStandard::lang_opencl20) 2349 Opts.OpenCLVersion = 200; 2350 else if (LangStd == LangStandard::lang_openclcpp) 2351 Opts.OpenCLCPlusPlusVersion = 100; 2352 2353 // OpenCL has some additional defaults. 2354 if (Opts.OpenCL) { 2355 Opts.AltiVec = 0; 2356 Opts.ZVector = 0; 2357 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2358 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2359 Opts.NativeHalfType = 1; 2360 Opts.NativeHalfArgsAndReturns = 1; 2361 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2362 2363 // Include default header file for OpenCL. 2364 if (Opts.IncludeDefaultHeader) { 2365 if (Opts.DeclareOpenCLBuiltins) { 2366 // Only include base header file for builtin types and constants. 2367 PPOpts.Includes.push_back("opencl-c-base.h"); 2368 } else { 2369 PPOpts.Includes.push_back("opencl-c.h"); 2370 } 2371 } 2372 } 2373 2374 Opts.HIP = IK.getLanguage() == Language::HIP; 2375 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2376 if (Opts.CUDA) 2377 // Set default FP_CONTRACT to FAST. 2378 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2379 2380 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2381 if (Opts.RenderScript) { 2382 Opts.NativeHalfType = 1; 2383 Opts.NativeHalfArgsAndReturns = 1; 2384 } 2385 2386 // OpenCL and C++ both have bool, true, false keywords. 2387 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2388 2389 // OpenCL has half keyword 2390 Opts.Half = Opts.OpenCL; 2391 2392 // C++ has wchar_t keyword. 2393 Opts.WChar = Opts.CPlusPlus; 2394 2395 Opts.GNUKeywords = Opts.GNUMode; 2396 Opts.CXXOperatorNames = Opts.CPlusPlus; 2397 2398 Opts.AlignedAllocation = Opts.CPlusPlus17; 2399 2400 Opts.DollarIdents = !Opts.AsmPreprocessor; 2401 2402 // Enable [[]] attributes in C++11 and C2x by default. 2403 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2404 } 2405 2406 /// Attempt to parse a visibility value out of the given argument. 2407 static Visibility parseVisibility(Arg *arg, ArgList &args, 2408 DiagnosticsEngine &diags) { 2409 StringRef value = arg->getValue(); 2410 if (value == "default") { 2411 return DefaultVisibility; 2412 } else if (value == "hidden" || value == "internal") { 2413 return HiddenVisibility; 2414 } else if (value == "protected") { 2415 // FIXME: diagnose if target does not support protected visibility 2416 return ProtectedVisibility; 2417 } 2418 2419 diags.Report(diag::err_drv_invalid_value) 2420 << arg->getAsString(args) << value; 2421 return DefaultVisibility; 2422 } 2423 2424 /// Check if input file kind and language standard are compatible. 2425 static bool IsInputCompatibleWithStandard(InputKind IK, 2426 const LangStandard &S) { 2427 switch (IK.getLanguage()) { 2428 case Language::Unknown: 2429 case Language::LLVM_IR: 2430 llvm_unreachable("should not parse language flags for this input"); 2431 2432 case Language::C: 2433 case Language::ObjC: 2434 case Language::RenderScript: 2435 return S.getLanguage() == Language::C; 2436 2437 case Language::OpenCL: 2438 return S.getLanguage() == Language::OpenCL; 2439 2440 case Language::CXX: 2441 case Language::ObjCXX: 2442 return S.getLanguage() == Language::CXX; 2443 2444 case Language::CUDA: 2445 // FIXME: What -std= values should be permitted for CUDA compilations? 2446 return S.getLanguage() == Language::CUDA || 2447 S.getLanguage() == Language::CXX; 2448 2449 case Language::HIP: 2450 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2451 2452 case Language::Asm: 2453 // Accept (and ignore) all -std= values. 2454 // FIXME: The -std= value is not ignored; it affects the tokenization 2455 // and preprocessing rules if we're preprocessing this asm input. 2456 return true; 2457 } 2458 2459 llvm_unreachable("unexpected input language"); 2460 } 2461 2462 /// Get language name for given input kind. 2463 static const StringRef GetInputKindName(InputKind IK) { 2464 switch (IK.getLanguage()) { 2465 case Language::C: 2466 return "C"; 2467 case Language::ObjC: 2468 return "Objective-C"; 2469 case Language::CXX: 2470 return "C++"; 2471 case Language::ObjCXX: 2472 return "Objective-C++"; 2473 case Language::OpenCL: 2474 return "OpenCL"; 2475 case Language::CUDA: 2476 return "CUDA"; 2477 case Language::RenderScript: 2478 return "RenderScript"; 2479 case Language::HIP: 2480 return "HIP"; 2481 2482 case Language::Asm: 2483 return "Asm"; 2484 case Language::LLVM_IR: 2485 return "LLVM IR"; 2486 2487 case Language::Unknown: 2488 break; 2489 } 2490 llvm_unreachable("unknown input language"); 2491 } 2492 2493 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2494 const TargetOptions &TargetOpts, 2495 PreprocessorOptions &PPOpts, 2496 DiagnosticsEngine &Diags) { 2497 // FIXME: Cleanup per-file based stuff. 2498 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2499 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2500 LangStd = LangStandard::getLangKind(A->getValue()); 2501 if (LangStd == LangStandard::lang_unspecified) { 2502 Diags.Report(diag::err_drv_invalid_value) 2503 << A->getAsString(Args) << A->getValue(); 2504 // Report supported standards with short description. 2505 for (unsigned KindValue = 0; 2506 KindValue != LangStandard::lang_unspecified; 2507 ++KindValue) { 2508 const LangStandard &Std = LangStandard::getLangStandardForKind( 2509 static_cast<LangStandard::Kind>(KindValue)); 2510 if (IsInputCompatibleWithStandard(IK, Std)) { 2511 auto Diag = Diags.Report(diag::note_drv_use_standard); 2512 Diag << Std.getName() << Std.getDescription(); 2513 unsigned NumAliases = 0; 2514 #define LANGSTANDARD(id, name, lang, desc, features) 2515 #define LANGSTANDARD_ALIAS(id, alias) \ 2516 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2517 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2518 #include "clang/Basic/LangStandards.def" 2519 Diag << NumAliases; 2520 #define LANGSTANDARD(id, name, lang, desc, features) 2521 #define LANGSTANDARD_ALIAS(id, alias) \ 2522 if (KindValue == LangStandard::lang_##id) Diag << alias; 2523 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2524 #include "clang/Basic/LangStandards.def" 2525 } 2526 } 2527 } else { 2528 // Valid standard, check to make sure language and standard are 2529 // compatible. 2530 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2531 if (!IsInputCompatibleWithStandard(IK, Std)) { 2532 Diags.Report(diag::err_drv_argument_not_allowed_with) 2533 << A->getAsString(Args) << GetInputKindName(IK); 2534 } 2535 } 2536 } 2537 2538 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2539 Opts.DllExportInlines = false; 2540 2541 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2542 StringRef Name = A->getValue(); 2543 if (Name == "full" || Name == "branch") { 2544 Opts.CFProtectionBranch = 1; 2545 } 2546 } 2547 // -cl-std only applies for OpenCL language standards. 2548 // Override the -std option in this case. 2549 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2550 LangStandard::Kind OpenCLLangStd 2551 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2552 .Cases("cl", "CL", LangStandard::lang_opencl10) 2553 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2554 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2555 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2556 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2557 .Default(LangStandard::lang_unspecified); 2558 2559 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2560 Diags.Report(diag::err_drv_invalid_value) 2561 << A->getAsString(Args) << A->getValue(); 2562 } 2563 else 2564 LangStd = OpenCLLangStd; 2565 } 2566 2567 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2568 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2569 if (Opts.SYCL) { 2570 // -sycl-std applies to any SYCL source, not only those containing kernels, 2571 // but also those using the SYCL API 2572 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2573 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2574 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2575 .Default(0U); 2576 2577 if (Opts.SYCLVersion == 0U) { 2578 // User has passed an invalid value to the flag, this is an error 2579 Diags.Report(diag::err_drv_invalid_value) 2580 << A->getAsString(Args) << A->getValue(); 2581 } 2582 } 2583 } 2584 2585 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2586 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2587 2588 llvm::Triple T(TargetOpts.Triple); 2589 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2590 2591 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2592 // This option should be deprecated for CL > 1.0 because 2593 // this option was added for compatibility with OpenCL 1.0. 2594 if (Args.getLastArg(OPT_cl_strict_aliasing) 2595 && Opts.OpenCLVersion > 100) { 2596 Diags.Report(diag::warn_option_invalid_ocl_version) 2597 << Opts.getOpenCLVersionTuple().getAsString() 2598 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2599 } 2600 2601 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2602 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2603 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2604 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2605 // name, as it doesn't seem a useful distinction. 2606 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2607 Opts.GNUKeywords); 2608 2609 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2610 2611 if (Args.hasArg(OPT_fno_operator_names)) 2612 Opts.CXXOperatorNames = 0; 2613 2614 if (Args.hasArg(OPT_fcuda_is_device)) 2615 Opts.CUDAIsDevice = 1; 2616 2617 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2618 Opts.CUDAAllowVariadicFunctions = 1; 2619 2620 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2621 Opts.CUDAHostDeviceConstexpr = 0; 2622 2623 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2624 Opts.CUDADeviceApproxTranscendentals = 1; 2625 2626 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2627 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2628 if (Opts.HIP) 2629 Opts.GPUAllowDeviceInit = 1; 2630 else 2631 Diags.Report(diag::warn_ignored_hip_only_option) 2632 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2633 } 2634 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2635 if (Opts.HIP) 2636 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2637 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2638 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2639 Diags.Report(diag::warn_ignored_hip_only_option) 2640 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2641 2642 if (Opts.ObjC) { 2643 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2644 StringRef value = arg->getValue(); 2645 if (Opts.ObjCRuntime.tryParse(value)) 2646 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2647 } 2648 2649 if (Args.hasArg(OPT_fobjc_gc_only)) 2650 Opts.setGC(LangOptions::GCOnly); 2651 else if (Args.hasArg(OPT_fobjc_gc)) 2652 Opts.setGC(LangOptions::HybridGC); 2653 else if (Args.hasArg(OPT_fobjc_arc)) { 2654 Opts.ObjCAutoRefCount = 1; 2655 if (!Opts.ObjCRuntime.allowsARC()) 2656 Diags.Report(diag::err_arc_unsupported_on_runtime); 2657 } 2658 2659 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2660 // whether the feature is actually enabled. This is predominantly 2661 // determined by -fobjc-runtime, but we allow it to be overridden 2662 // from the command line for testing purposes. 2663 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2664 Opts.ObjCWeakRuntime = 1; 2665 else 2666 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2667 2668 // ObjCWeak determines whether __weak is actually enabled. 2669 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2670 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2671 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2672 assert(!Opts.ObjCWeak); 2673 } else if (Opts.getGC() != LangOptions::NonGC) { 2674 Diags.Report(diag::err_objc_weak_with_gc); 2675 } else if (!Opts.ObjCWeakRuntime) { 2676 Diags.Report(diag::err_objc_weak_unsupported); 2677 } else { 2678 Opts.ObjCWeak = 1; 2679 } 2680 } else if (Opts.ObjCAutoRefCount) { 2681 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2682 } 2683 2684 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2685 Opts.ObjCInferRelatedResultType = 0; 2686 2687 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2688 Opts.ObjCSubscriptingLegacyRuntime = 2689 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2690 } 2691 2692 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2693 // Check that the version has 1 to 3 components and the minor and patch 2694 // versions fit in two decimal digits. 2695 VersionTuple GNUCVer; 2696 bool Invalid = GNUCVer.tryParse(A->getValue()); 2697 unsigned Major = GNUCVer.getMajor(); 2698 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2699 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2700 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2701 Diags.Report(diag::err_drv_invalid_value) 2702 << A->getAsString(Args) << A->getValue(); 2703 } 2704 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2705 } 2706 2707 if (Args.hasArg(OPT_fgnu89_inline)) { 2708 if (Opts.CPlusPlus) 2709 Diags.Report(diag::err_drv_argument_not_allowed_with) 2710 << "-fgnu89-inline" << GetInputKindName(IK); 2711 else 2712 Opts.GNUInline = 1; 2713 } 2714 2715 if (Args.hasArg(OPT_fapple_kext)) { 2716 if (!Opts.CPlusPlus) 2717 Diags.Report(diag::warn_c_kext); 2718 else 2719 Opts.AppleKext = 1; 2720 } 2721 2722 if (Args.hasArg(OPT_print_ivar_layout)) 2723 Opts.ObjCGCBitmapPrint = 1; 2724 2725 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2726 Opts.NoConstantCFStrings = 1; 2727 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2728 Opts.CFRuntime = 2729 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2730 .Cases("unspecified", "standalone", "objc", 2731 LangOptions::CoreFoundationABI::ObjectiveC) 2732 .Cases("swift", "swift-5.0", 2733 LangOptions::CoreFoundationABI::Swift5_0) 2734 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2735 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2736 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2737 2738 if (Args.hasArg(OPT_fzvector)) 2739 Opts.ZVector = 1; 2740 2741 if (Args.hasArg(OPT_pthread)) 2742 Opts.POSIXThreads = 1; 2743 2744 // The value-visibility mode defaults to "default". 2745 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2746 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2747 } else { 2748 Opts.setValueVisibilityMode(DefaultVisibility); 2749 } 2750 2751 // The type-visibility mode defaults to the value-visibility mode. 2752 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2753 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2754 } else { 2755 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2756 } 2757 2758 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2759 Opts.InlineVisibilityHidden = 1; 2760 2761 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2762 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2763 2764 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2765 Opts.SetVisibilityForExternDecls = 1; 2766 2767 if (Args.hasArg(OPT_ftrapv)) { 2768 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2769 // Set the handler, if one is specified. 2770 Opts.OverflowHandler = 2771 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2772 } 2773 else if (Args.hasArg(OPT_fwrapv)) 2774 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2775 2776 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2777 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2778 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2779 Opts.MSCompatibilityVersion = 0; 2780 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2781 VersionTuple VT; 2782 if (VT.tryParse(A->getValue())) 2783 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2784 << A->getValue(); 2785 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2786 VT.getMinor().getValueOr(0) * 100000 + 2787 VT.getSubminor().getValueOr(0); 2788 } 2789 2790 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2791 // is specified, or -std is set to a conforming mode. 2792 // Trigraphs are disabled by default in c++1z onwards. 2793 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2794 Opts.Trigraphs = 2795 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2796 2797 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2798 OPT_fno_dollars_in_identifiers, 2799 Opts.DollarIdents); 2800 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2801 Opts.setVtorDispMode( 2802 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2803 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2804 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2805 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2806 Opts.ConstStrings); 2807 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2808 using LaxKind = LangOptions::LaxVectorConversionKind; 2809 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2810 .Case("none", LaxKind::None) 2811 .Case("integer", LaxKind::Integer) 2812 .Case("all", LaxKind::All) 2813 .Default(llvm::None)) 2814 Opts.setLaxVectorConversions(*Kind); 2815 else 2816 Diags.Report(diag::err_drv_invalid_value) 2817 << A->getAsString(Args) << A->getValue(); 2818 } 2819 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2820 Opts.ThreadsafeStatics = 0; 2821 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2822 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2823 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2824 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2825 2826 // -ffixed-point 2827 Opts.FixedPoint = 2828 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2829 !Opts.CPlusPlus; 2830 Opts.PaddingOnUnsignedFixedPoint = 2831 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2832 OPT_fno_padding_on_unsigned_fixed_point, 2833 /*Default=*/false) && 2834 Opts.FixedPoint; 2835 2836 // Handle exception personalities 2837 Arg *A = Args.getLastArg( 2838 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2839 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2840 if (A) { 2841 const Option &Opt = A->getOption(); 2842 llvm::Triple T(TargetOpts.Triple); 2843 if (T.isWindowsMSVCEnvironment()) 2844 Diags.Report(diag::err_fe_invalid_exception_model) 2845 << Opt.getName() << T.str(); 2846 2847 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2848 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2849 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2850 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2851 } 2852 2853 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2854 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2855 2856 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2857 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2858 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2859 && Opts.OpenCLVersion == 200); 2860 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2861 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2862 2863 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2864 Args.hasArg(OPT_fconvergent_functions); 2865 2866 Opts.DoubleSquareBracketAttributes = 2867 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2868 OPT_fno_double_square_bracket_attributes, 2869 Opts.DoubleSquareBracketAttributes); 2870 2871 Opts.CPlusPlusModules = Opts.CPlusPlus20; 2872 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2873 Opts.Modules = 2874 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2875 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2876 Opts.ModulesDeclUse = 2877 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2878 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2879 // enter a different module (eg, when building a header unit). 2880 Opts.ModulesLocalVisibility = 2881 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2882 Opts.CPlusPlusModules; 2883 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2884 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2885 Opts.ModulesSearchAll = Opts.Modules && 2886 !Args.hasArg(OPT_fno_modules_search_all) && 2887 Args.hasArg(OPT_fmodules_search_all); 2888 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2889 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2890 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2891 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2892 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 2893 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2894 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2895 .Case("char", 1) 2896 .Case("short", 2) 2897 .Case("int", 4) 2898 .Default(0); 2899 if (Opts.WCharSize == 0) 2900 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2901 } 2902 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2903 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2904 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2905 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2906 if (!Opts.NoBuiltin) 2907 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2908 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2909 Opts.RelaxedTemplateTemplateArgs = 2910 Args.hasArg(OPT_frelaxed_template_template_args); 2911 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2912 Opts.AlignedAllocation = 2913 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2914 Opts.AlignedAllocation); 2915 Opts.AlignedAllocationUnavailable = 2916 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2917 Opts.NewAlignOverride = 2918 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2919 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2920 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2921 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2922 << A->getValue(); 2923 Opts.NewAlignOverride = 0; 2924 } 2925 Opts.ConceptSatisfactionCaching = 2926 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2927 if (Args.hasArg(OPT_fconcepts_ts)) 2928 Diags.Report(diag::warn_fe_concepts_ts_flag); 2929 // Recovery AST still heavily relies on dependent-type machinery. 2930 Opts.RecoveryAST = 2931 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, Opts.CPlusPlus); 2932 Opts.RecoveryASTType = 2933 Args.hasFlag(OPT_frecovery_ast_type, OPT_fno_recovery_ast_type, false); 2934 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2935 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2936 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2937 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2938 Opts.InstantiationDepth = 2939 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2940 Opts.ArrowDepth = 2941 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2942 Opts.ConstexprCallDepth = 2943 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2944 Opts.ConstexprStepLimit = 2945 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2946 Opts.EnableNewConstInterp = 2947 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2948 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2949 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2950 Opts.NumLargeByValueCopy = 2951 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2952 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2953 Opts.ObjCConstantStringClass = 2954 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2955 Opts.ObjCDefaultSynthProperties = 2956 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2957 Opts.EncodeExtendedBlockSig = 2958 Args.hasArg(OPT_fencode_extended_block_signature); 2959 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2960 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2961 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2962 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2963 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 2964 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2965 ? 128 2966 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2967 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2968 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2969 Opts.ROPI = Args.hasArg(OPT_fropi); 2970 Opts.RWPI = Args.hasArg(OPT_frwpi); 2971 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2972 Opts.Static = Args.hasArg(OPT_static_define); 2973 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2974 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2975 || Args.hasArg(OPT_fdump_record_layouts); 2976 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2977 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2978 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2979 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2980 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2981 if (Opts.FastRelaxedMath) 2982 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2983 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2984 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2985 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2986 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2987 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2988 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2989 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2990 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 2991 Opts.CurrentModule = Opts.ModuleName; 2992 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2993 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2994 llvm::sort(Opts.ModuleFeatures); 2995 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2996 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2997 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2998 // is enabled. 2999 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 3000 | Opts.NativeHalfArgsAndReturns; 3001 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 3002 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 3003 3004 // __declspec is enabled by default for the PS4 by the driver, and also 3005 // enabled for Microsoft Extensions or Borland Extensions, here. 3006 // 3007 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 3008 // CUDA extension. However, it is required for supporting 3009 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 3010 // been rewritten in terms of something more generic, remove the Opts.CUDA 3011 // term here. 3012 Opts.DeclSpecKeyword = 3013 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 3014 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 3015 3016 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 3017 switch (llvm::StringSwitch<unsigned>(A->getValue()) 3018 .Case("target", LangOptions::ASMM_Target) 3019 .Case("no", LangOptions::ASMM_Off) 3020 .Case("yes", LangOptions::ASMM_On) 3021 .Default(255)) { 3022 default: 3023 Diags.Report(diag::err_drv_invalid_value) 3024 << "-faddress-space-map-mangling=" << A->getValue(); 3025 break; 3026 case LangOptions::ASMM_Target: 3027 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 3028 break; 3029 case LangOptions::ASMM_On: 3030 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 3031 break; 3032 case LangOptions::ASMM_Off: 3033 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 3034 break; 3035 } 3036 } 3037 3038 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 3039 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 3040 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 3041 A->getValue()) 3042 .Case("single", 3043 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3044 .Case("multiple", 3045 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3046 .Case("virtual", 3047 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3048 .Default(LangOptions::PPTMK_BestCase); 3049 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3050 Diags.Report(diag::err_drv_invalid_value) 3051 << "-fms-memptr-rep=" << A->getValue(); 3052 3053 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3054 } 3055 3056 // Check for MS default calling conventions being specified. 3057 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3058 LangOptions::DefaultCallingConvention DefaultCC = 3059 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3060 .Case("cdecl", LangOptions::DCC_CDecl) 3061 .Case("fastcall", LangOptions::DCC_FastCall) 3062 .Case("stdcall", LangOptions::DCC_StdCall) 3063 .Case("vectorcall", LangOptions::DCC_VectorCall) 3064 .Case("regcall", LangOptions::DCC_RegCall) 3065 .Default(LangOptions::DCC_None); 3066 if (DefaultCC == LangOptions::DCC_None) 3067 Diags.Report(diag::err_drv_invalid_value) 3068 << "-fdefault-calling-conv=" << A->getValue(); 3069 3070 llvm::Triple T(TargetOpts.Triple); 3071 llvm::Triple::ArchType Arch = T.getArch(); 3072 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3073 DefaultCC == LangOptions::DCC_StdCall) && 3074 Arch != llvm::Triple::x86; 3075 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3076 DefaultCC == LangOptions::DCC_RegCall) && 3077 !T.isX86(); 3078 if (emitError) 3079 Diags.Report(diag::err_drv_argument_not_allowed_with) 3080 << A->getSpelling() << T.getTriple(); 3081 else 3082 Opts.setDefaultCallingConv(DefaultCC); 3083 } 3084 3085 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3086 // An explicit -fno-semantic-interposition infers dso_local. 3087 Opts.ExplicitNoSemanticInterposition = 3088 Args.hasArg(OPT_fno_semantic_interposition); 3089 3090 // -mrtd option 3091 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3092 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3093 Diags.Report(diag::err_drv_argument_not_allowed_with) 3094 << A->getSpelling() << "-fdefault-calling-conv"; 3095 else { 3096 llvm::Triple T(TargetOpts.Triple); 3097 if (T.getArch() != llvm::Triple::x86) 3098 Diags.Report(diag::err_drv_argument_not_allowed_with) 3099 << A->getSpelling() << T.getTriple(); 3100 else 3101 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3102 } 3103 } 3104 3105 // Check if -fopenmp is specified and set default version to 5.0. 3106 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 50 : 0; 3107 // Check if -fopenmp-simd is specified. 3108 bool IsSimdSpecified = 3109 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3110 /*Default=*/false); 3111 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3112 Opts.OpenMPUseTLS = 3113 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3114 Opts.OpenMPIsDevice = 3115 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3116 Opts.OpenMPIRBuilder = 3117 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3118 bool IsTargetSpecified = 3119 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3120 3121 if (Opts.OpenMP || Opts.OpenMPSimd) { 3122 if (int Version = getLastArgIntValue( 3123 Args, OPT_fopenmp_version_EQ, 3124 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3125 Opts.OpenMP = Version; 3126 // Provide diagnostic when a given target is not expected to be an OpenMP 3127 // device or host. 3128 if (!Opts.OpenMPIsDevice) { 3129 switch (T.getArch()) { 3130 default: 3131 break; 3132 // Add unsupported host targets here: 3133 case llvm::Triple::nvptx: 3134 case llvm::Triple::nvptx64: 3135 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3136 << TargetOpts.Triple; 3137 break; 3138 } 3139 } 3140 } 3141 3142 // Set the flag to prevent the implementation from emitting device exception 3143 // handling code for those requiring so. 3144 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3145 Opts.OpenCLCPlusPlus) { 3146 Opts.Exceptions = 0; 3147 Opts.CXXExceptions = 0; 3148 } 3149 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3150 Opts.OpenMPCUDANumSMs = 3151 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3152 Opts.OpenMPCUDANumSMs, Diags); 3153 Opts.OpenMPCUDABlocksPerSM = 3154 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3155 Opts.OpenMPCUDABlocksPerSM, Diags); 3156 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3157 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3158 Opts.OpenMPCUDAReductionBufNum, Diags); 3159 } 3160 3161 // Prevent auto-widening the representation of loop counters during an 3162 // OpenMP collapse clause. 3163 Opts.OpenMPOptimisticCollapse = 3164 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3165 3166 // Get the OpenMP target triples if any. 3167 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3168 3169 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3170 llvm::Triple TT(A->getValue(i)); 3171 3172 if (TT.getArch() == llvm::Triple::UnknownArch || 3173 !(TT.getArch() == llvm::Triple::aarch64 || 3174 TT.getArch() == llvm::Triple::ppc || 3175 TT.getArch() == llvm::Triple::ppc64 || 3176 TT.getArch() == llvm::Triple::ppc64le || 3177 TT.getArch() == llvm::Triple::nvptx || 3178 TT.getArch() == llvm::Triple::nvptx64 || 3179 TT.getArch() == llvm::Triple::amdgcn || 3180 TT.getArch() == llvm::Triple::x86 || 3181 TT.getArch() == llvm::Triple::x86_64)) 3182 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3183 else 3184 Opts.OMPTargetTriples.push_back(TT); 3185 } 3186 } 3187 3188 // Get OpenMP host file path if any and report if a non existent file is 3189 // found 3190 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3191 Opts.OMPHostIRFile = A->getValue(); 3192 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3193 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3194 << Opts.OMPHostIRFile; 3195 } 3196 3197 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3198 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3199 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3200 3201 // Set CUDA support for parallel execution of target regions for OpenMP target 3202 // NVPTX/AMDGCN if specified in options. 3203 Opts.OpenMPCUDATargetParallel = 3204 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3205 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3206 3207 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3208 Opts.OpenMPCUDAForceFullRuntime = 3209 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3210 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3211 3212 // Record whether the __DEPRECATED define was requested. 3213 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3214 OPT_fno_deprecated_macro, 3215 Opts.Deprecated); 3216 3217 // FIXME: Eliminate this dependency. 3218 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3219 OptSize = getOptimizationLevelSize(Args); 3220 Opts.Optimize = Opt != 0; 3221 Opts.OptimizeSize = OptSize != 0; 3222 3223 // This is the __NO_INLINE__ define, which just depends on things like the 3224 // optimization level and -fno-inline, not actually whether the backend has 3225 // inlining enabled. 3226 Opts.NoInlineDefine = !Opts.Optimize; 3227 if (Arg *InlineArg = Args.getLastArg( 3228 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3229 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3230 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3231 Opts.NoInlineDefine = true; 3232 3233 Opts.FastMath = 3234 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_fast_relaxed_math); 3235 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3236 Args.hasArg(OPT_ffast_math) || 3237 Args.hasArg(OPT_cl_finite_math_only) || 3238 Args.hasArg(OPT_cl_fast_relaxed_math); 3239 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3240 Args.hasArg(OPT_ffast_math) || 3241 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3242 Args.hasArg(OPT_cl_fast_relaxed_math); 3243 Opts.AllowFPReassoc = Args.hasArg(OPT_mreassociate) || 3244 Args.hasArg(OPT_menable_unsafe_fp_math) || 3245 Args.hasArg(OPT_ffast_math) || 3246 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3247 Args.hasArg(OPT_cl_fast_relaxed_math); 3248 Opts.NoHonorNaNs = 3249 Args.hasArg(OPT_menable_no_nans) || Args.hasArg(OPT_ffinite_math_only) || 3250 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_finite_math_only) || 3251 Args.hasArg(OPT_cl_fast_relaxed_math); 3252 Opts.NoHonorInfs = Args.hasArg(OPT_menable_no_infinities) || 3253 Args.hasArg(OPT_ffinite_math_only) || 3254 Args.hasArg(OPT_ffast_math) || 3255 Args.hasArg(OPT_cl_finite_math_only) || 3256 Args.hasArg(OPT_cl_fast_relaxed_math); 3257 Opts.NoSignedZero = Args.hasArg(OPT_fno_signed_zeros) || 3258 Args.hasArg(OPT_menable_unsafe_fp_math) || 3259 Args.hasArg(OPT_ffast_math) || 3260 Args.hasArg(OPT_cl_no_signed_zeros) || 3261 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3262 Args.hasArg(OPT_cl_fast_relaxed_math); 3263 Opts.AllowRecip = Args.hasArg(OPT_freciprocal_math) || 3264 Args.hasArg(OPT_menable_unsafe_fp_math) || 3265 Args.hasArg(OPT_ffast_math) || 3266 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3267 Args.hasArg(OPT_cl_fast_relaxed_math); 3268 // Currently there's no clang option to enable this individually 3269 Opts.ApproxFunc = Args.hasArg(OPT_menable_unsafe_fp_math) || 3270 Args.hasArg(OPT_ffast_math) || 3271 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3272 Args.hasArg(OPT_cl_fast_relaxed_math); 3273 3274 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3275 StringRef Val = A->getValue(); 3276 if (Val == "fast") 3277 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3278 else if (Val == "on") 3279 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3280 else if (Val == "off") 3281 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3282 else 3283 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3284 } 3285 3286 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3287 if (Args.hasArg(OPT_frounding_math)) { 3288 FPRM = llvm::RoundingMode::Dynamic; 3289 } 3290 Opts.setFPRoundingMode(FPRM); 3291 3292 if (Args.hasArg(OPT_ftrapping_math)) { 3293 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3294 } 3295 3296 if (Args.hasArg(OPT_fno_trapping_math)) { 3297 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3298 } 3299 3300 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3301 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3302 StringRef Val = A->getValue(); 3303 if (Val.equals("ignore")) 3304 FPEB = LangOptions::FPE_Ignore; 3305 else if (Val.equals("maytrap")) 3306 FPEB = LangOptions::FPE_MayTrap; 3307 else if (Val.equals("strict")) 3308 FPEB = LangOptions::FPE_Strict; 3309 else 3310 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3311 } 3312 Opts.setFPExceptionMode(FPEB); 3313 3314 Opts.RetainCommentsFromSystemHeaders = 3315 Args.hasArg(OPT_fretain_comments_from_system_headers); 3316 3317 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3318 switch (SSP) { 3319 default: 3320 Diags.Report(diag::err_drv_invalid_value) 3321 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3322 break; 3323 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3324 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3325 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3326 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3327 } 3328 3329 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3330 StringRef Val = A->getValue(); 3331 if (Val == "uninitialized") 3332 Opts.setTrivialAutoVarInit( 3333 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3334 else if (Val == "zero") 3335 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3336 else if (Val == "pattern") 3337 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3338 else 3339 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3340 } 3341 3342 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init_stop_after)) { 3343 int Val = std::stoi(A->getValue()); 3344 Opts.TrivialAutoVarInitStopAfter = Val; 3345 } 3346 3347 // Parse -fsanitize= arguments. 3348 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3349 Diags, Opts.Sanitize); 3350 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3351 Opts.SanitizeAddressFieldPadding = 3352 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3353 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3354 std::vector<std::string> systemBlacklists = 3355 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3356 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3357 systemBlacklists.begin(), 3358 systemBlacklists.end()); 3359 3360 // -fxray-instrument 3361 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3362 Opts.XRayAlwaysEmitCustomEvents = 3363 Args.hasArg(OPT_fxray_always_emit_customevents); 3364 Opts.XRayAlwaysEmitTypedEvents = 3365 Args.hasArg(OPT_fxray_always_emit_typedevents); 3366 3367 // -fxray-{always,never}-instrument= filenames. 3368 Opts.XRayAlwaysInstrumentFiles = 3369 Args.getAllArgValues(OPT_fxray_always_instrument); 3370 Opts.XRayNeverInstrumentFiles = 3371 Args.getAllArgValues(OPT_fxray_never_instrument); 3372 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3373 3374 // -fforce-emit-vtables 3375 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3376 3377 // -fallow-editor-placeholders 3378 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3379 3380 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3381 3382 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3383 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3384 3385 StringRef Ver = A->getValue(); 3386 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3387 unsigned Major, Minor = 0; 3388 3389 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3390 // y or y.0 (4 <= y <= current version). 3391 if (!VerParts.first.startswith("0") && 3392 !VerParts.first.getAsInteger(10, Major) && 3393 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3394 (Major == 3 ? VerParts.second.size() == 1 && 3395 !VerParts.second.getAsInteger(10, Minor) 3396 : VerParts.first.size() == Ver.size() || 3397 VerParts.second == "0")) { 3398 // Got a valid version number. 3399 if (Major == 3 && Minor <= 8) 3400 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3401 else if (Major <= 4) 3402 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3403 else if (Major <= 6) 3404 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3405 else if (Major <= 7) 3406 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3407 else if (Major <= 9) 3408 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3409 } else if (Ver != "latest") { 3410 Diags.Report(diag::err_drv_invalid_value) 3411 << A->getAsString(Args) << A->getValue(); 3412 } 3413 } 3414 3415 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3416 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3417 Opts.PCHInstantiateTemplates = Args.hasArg(OPT_fpch_instantiate_templates); 3418 3419 Opts.MatrixTypes = Args.hasArg(OPT_fenable_matrix); 3420 3421 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3422 3423 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3424 StringRef SignScope = A->getValue(); 3425 3426 if (SignScope.equals_lower("none")) 3427 Opts.setSignReturnAddressScope( 3428 LangOptions::SignReturnAddressScopeKind::None); 3429 else if (SignScope.equals_lower("all")) 3430 Opts.setSignReturnAddressScope( 3431 LangOptions::SignReturnAddressScopeKind::All); 3432 else if (SignScope.equals_lower("non-leaf")) 3433 Opts.setSignReturnAddressScope( 3434 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3435 else 3436 Diags.Report(diag::err_drv_invalid_value) 3437 << A->getAsString(Args) << SignScope; 3438 3439 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3440 StringRef SignKey = A->getValue(); 3441 if (!SignScope.empty() && !SignKey.empty()) { 3442 if (SignKey.equals_lower("a_key")) 3443 Opts.setSignReturnAddressKey( 3444 LangOptions::SignReturnAddressKeyKind::AKey); 3445 else if (SignKey.equals_lower("b_key")) 3446 Opts.setSignReturnAddressKey( 3447 LangOptions::SignReturnAddressKeyKind::BKey); 3448 else 3449 Diags.Report(diag::err_drv_invalid_value) 3450 << A->getAsString(Args) << SignKey; 3451 } 3452 } 3453 } 3454 3455 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3456 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 3457 3458 Opts.CompatibilityQualifiedIdBlockParamTypeChecking = 3459 Args.hasArg(OPT_fcompatibility_qualified_id_block_param_type_checking); 3460 3461 Opts.RelativeCXXABIVTables = 3462 Args.hasFlag(OPT_fexperimental_relative_cxx_abi_vtables, 3463 OPT_fno_experimental_relative_cxx_abi_vtables, 3464 /*default=*/false); 3465 } 3466 3467 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3468 switch (Action) { 3469 case frontend::ASTDeclList: 3470 case frontend::ASTDump: 3471 case frontend::ASTPrint: 3472 case frontend::ASTView: 3473 case frontend::EmitAssembly: 3474 case frontend::EmitBC: 3475 case frontend::EmitHTML: 3476 case frontend::EmitLLVM: 3477 case frontend::EmitLLVMOnly: 3478 case frontend::EmitCodeGenOnly: 3479 case frontend::EmitObj: 3480 case frontend::FixIt: 3481 case frontend::GenerateModule: 3482 case frontend::GenerateModuleInterface: 3483 case frontend::GenerateHeaderModule: 3484 case frontend::GeneratePCH: 3485 case frontend::GenerateInterfaceStubs: 3486 case frontend::ParseSyntaxOnly: 3487 case frontend::ModuleFileInfo: 3488 case frontend::VerifyPCH: 3489 case frontend::PluginAction: 3490 case frontend::RewriteObjC: 3491 case frontend::RewriteTest: 3492 case frontend::RunAnalysis: 3493 case frontend::TemplightDump: 3494 case frontend::MigrateSource: 3495 return false; 3496 3497 case frontend::DumpCompilerOptions: 3498 case frontend::DumpRawTokens: 3499 case frontend::DumpTokens: 3500 case frontend::InitOnly: 3501 case frontend::PrintPreamble: 3502 case frontend::PrintPreprocessedInput: 3503 case frontend::RewriteMacros: 3504 case frontend::RunPreprocessorOnly: 3505 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3506 return true; 3507 } 3508 llvm_unreachable("invalid frontend action"); 3509 } 3510 3511 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3512 DiagnosticsEngine &Diags, 3513 frontend::ActionKind Action) { 3514 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3515 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3516 Args.hasArg(OPT_pch_through_hdrstop_use); 3517 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3518 Opts.PCHThroughHeader = 3519 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3520 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3521 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3522 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3523 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3524 3525 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3526 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3527 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3528 3529 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3530 auto Split = StringRef(A).split('='); 3531 Opts.MacroPrefixMap.insert( 3532 {std::string(Split.first), std::string(Split.second)}); 3533 } 3534 3535 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3536 StringRef Value(A->getValue()); 3537 size_t Comma = Value.find(','); 3538 unsigned Bytes = 0; 3539 unsigned EndOfLine = 0; 3540 3541 if (Comma == StringRef::npos || 3542 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3543 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3544 Diags.Report(diag::err_drv_preamble_format); 3545 else { 3546 Opts.PrecompiledPreambleBytes.first = Bytes; 3547 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3548 } 3549 } 3550 3551 // Add the __CET__ macro if a CFProtection option is set. 3552 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3553 StringRef Name = A->getValue(); 3554 if (Name == "branch") 3555 Opts.addMacroDef("__CET__=1"); 3556 else if (Name == "return") 3557 Opts.addMacroDef("__CET__=2"); 3558 else if (Name == "full") 3559 Opts.addMacroDef("__CET__=3"); 3560 } 3561 3562 // Add macros from the command line. 3563 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3564 if (A->getOption().matches(OPT_D)) 3565 Opts.addMacroDef(A->getValue()); 3566 else 3567 Opts.addMacroUndef(A->getValue()); 3568 } 3569 3570 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3571 3572 // Add the ordered list of -includes. 3573 for (const auto *A : Args.filtered(OPT_include)) 3574 Opts.Includes.emplace_back(A->getValue()); 3575 3576 for (const auto *A : Args.filtered(OPT_chain_include)) 3577 Opts.ChainedIncludes.emplace_back(A->getValue()); 3578 3579 for (const auto *A : Args.filtered(OPT_remap_file)) { 3580 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3581 3582 if (Split.second.empty()) { 3583 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3584 continue; 3585 } 3586 3587 Opts.addRemappedFile(Split.first, Split.second); 3588 } 3589 3590 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3591 StringRef Name = A->getValue(); 3592 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3593 .Case("libc++", ARCXX_libcxx) 3594 .Case("libstdc++", ARCXX_libstdcxx) 3595 .Case("none", ARCXX_nolib) 3596 .Default(~0U); 3597 if (Library == ~0U) 3598 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3599 else 3600 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3601 } 3602 3603 // Always avoid lexing editor placeholders when we're just running the 3604 // preprocessor as we never want to emit the 3605 // "editor placeholder in source file" error in PP only mode. 3606 if (isStrictlyPreprocessorAction(Action)) 3607 Opts.LexEditorPlaceholders = false; 3608 3609 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3610 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3611 } 3612 3613 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3614 ArgList &Args, 3615 frontend::ActionKind Action) { 3616 if (isStrictlyPreprocessorAction(Action)) 3617 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3618 else 3619 Opts.ShowCPP = 0; 3620 3621 Opts.ShowComments = Args.hasArg(OPT_C); 3622 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3623 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3624 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3625 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3626 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3627 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3628 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3629 } 3630 3631 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3632 DiagnosticsEngine &Diags) { 3633 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3634 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3635 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3636 StringRef Value = A->getValue(); 3637 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3638 .Case("default", llvm::EABI::Default) 3639 .Case("4", llvm::EABI::EABI4) 3640 .Case("5", llvm::EABI::EABI5) 3641 .Case("gnu", llvm::EABI::GNU) 3642 .Default(llvm::EABI::Unknown); 3643 if (EABIVersion == llvm::EABI::Unknown) 3644 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3645 << Value; 3646 else 3647 Opts.EABIVersion = EABIVersion; 3648 } 3649 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3650 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3651 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3652 Opts.LinkerVersion = 3653 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3654 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3655 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3656 Opts.NVPTXUseShortPointers = Args.hasFlag( 3657 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3658 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3659 llvm::VersionTuple Version; 3660 if (Version.tryParse(A->getValue())) 3661 Diags.Report(diag::err_drv_invalid_value) 3662 << A->getAsString(Args) << A->getValue(); 3663 else 3664 Opts.SDKVersion = Version; 3665 } 3666 } 3667 3668 bool CompilerInvocation::parseSimpleArgs(const ArgList &Args, 3669 DiagnosticsEngine &Diags) { 3670 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 3671 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 3672 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 3673 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 3674 this->KEYPATH = Args.hasArg(OPT_##ID) && IS_POSITIVE; 3675 3676 #define OPTION_WITH_MARSHALLING_STRING( \ 3677 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3678 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3679 TYPE, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 3680 { \ 3681 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, Args, Diags)) \ 3682 this->KEYPATH = static_cast<TYPE>(*MaybeValue); \ 3683 else \ 3684 this->KEYPATH = DEFAULT_VALUE; \ 3685 } 3686 3687 #include "clang/Driver/Options.inc" 3688 #undef OPTION_WITH_MARSHALLING_STRING 3689 #undef OPTION_WITH_MARSHALLING_FLAG 3690 return true; 3691 } 3692 3693 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3694 ArrayRef<const char *> CommandLineArgs, 3695 DiagnosticsEngine &Diags, 3696 const char *Argv0) { 3697 bool Success = true; 3698 3699 // Parse the arguments. 3700 const OptTable &Opts = getDriverOptTable(); 3701 const unsigned IncludedFlagsBitmask = options::CC1Option; 3702 unsigned MissingArgIndex, MissingArgCount; 3703 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3704 MissingArgCount, IncludedFlagsBitmask); 3705 LangOptions &LangOpts = *Res.getLangOpts(); 3706 3707 // Check for missing argument error. 3708 if (MissingArgCount) { 3709 Diags.Report(diag::err_drv_missing_argument) 3710 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3711 Success = false; 3712 } 3713 3714 // Issue errors on unknown arguments. 3715 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3716 auto ArgString = A->getAsString(Args); 3717 std::string Nearest; 3718 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3719 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3720 else 3721 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3722 << ArgString << Nearest; 3723 Success = false; 3724 } 3725 3726 Success &= Res.parseSimpleArgs(Args, Diags); 3727 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3728 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3729 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3730 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3731 Res.getDependencyOutputOpts().Targets.empty()) { 3732 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3733 Success = false; 3734 } 3735 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3736 /*DefaultDiagColor=*/false); 3737 ParseCommentArgs(LangOpts.CommentOpts, Args); 3738 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3739 // FIXME: We shouldn't have to pass the DashX option around here 3740 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3741 LangOpts.IsHeaderFile); 3742 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3743 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3744 Res.getTargetOpts(), Res.getFrontendOpts()); 3745 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3746 Res.getFileSystemOpts().WorkingDir); 3747 llvm::Triple T(Res.getTargetOpts().Triple); 3748 if (DashX.getFormat() == InputKind::Precompiled || 3749 DashX.getLanguage() == Language::LLVM_IR) { 3750 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3751 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3752 // what the input type is. 3753 if (Args.hasArg(OPT_fobjc_arc)) 3754 LangOpts.ObjCAutoRefCount = 1; 3755 // PIClevel and PIELevel are needed during code generation and this should be 3756 // set regardless of the input type. 3757 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3758 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3759 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3760 Diags, LangOpts.Sanitize); 3761 } else { 3762 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3763 // FIXME: Should we really be calling this for an Language::Asm input? 3764 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3765 Res.getPreprocessorOpts(), Diags); 3766 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3767 LangOpts.ObjCExceptions = 1; 3768 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3769 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3770 // preprocessed input as we don't expect it to be used with -std=libc++ 3771 // anyway. 3772 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3773 } 3774 } 3775 3776 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3777 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3778 3779 LangOpts.FunctionAlignment = 3780 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3781 3782 if (LangOpts.CUDA) { 3783 // During CUDA device-side compilation, the aux triple is the 3784 // triple used for host compilation. 3785 if (LangOpts.CUDAIsDevice) 3786 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3787 } 3788 3789 // Set the triple of the host for OpenMP device compile. 3790 if (LangOpts.OpenMPIsDevice) 3791 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3792 3793 // FIXME: Override value name discarding when asan or msan is used because the 3794 // backend passes depend on the name of the alloca in order to print out 3795 // names. 3796 Res.getCodeGenOpts().DiscardValueNames &= 3797 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3798 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3799 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3800 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3801 3802 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3803 Res.getFrontendOpts().ProgramAction); 3804 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3805 Res.getFrontendOpts().ProgramAction); 3806 3807 // Turn on -Wspir-compat for SPIR target. 3808 if (T.isSPIR()) 3809 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3810 3811 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3812 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3813 !Res.getLangOpts()->Sanitize.empty()) { 3814 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3815 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3816 } 3817 3818 // Store the command-line for using in the CodeView backend. 3819 Res.getCodeGenOpts().Argv0 = Argv0; 3820 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 3821 3822 return Success; 3823 } 3824 3825 std::string CompilerInvocation::getModuleHash() const { 3826 // Note: For QoI reasons, the things we use as a hash here should all be 3827 // dumped via the -module-info flag. 3828 using llvm::hash_code; 3829 using llvm::hash_value; 3830 using llvm::hash_combine; 3831 using llvm::hash_combine_range; 3832 3833 // Start the signature with the compiler version. 3834 // FIXME: We'd rather use something more cryptographically sound than 3835 // CityHash, but this will do for now. 3836 hash_code code = hash_value(getClangFullRepositoryVersion()); 3837 3838 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3839 // and getClangFullRepositoryVersion() doesn't include git revision. 3840 code = hash_combine(code, serialization::VERSION_MAJOR, 3841 serialization::VERSION_MINOR); 3842 3843 // Extend the signature with the language options 3844 #define LANGOPT(Name, Bits, Default, Description) \ 3845 code = hash_combine(code, LangOpts->Name); 3846 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3847 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3848 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3849 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3850 #include "clang/Basic/LangOptions.def" 3851 3852 for (StringRef Feature : LangOpts->ModuleFeatures) 3853 code = hash_combine(code, Feature); 3854 3855 // Extend the signature with the target options. 3856 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3857 TargetOpts->ABI); 3858 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3859 code = hash_combine(code, FeatureAsWritten); 3860 3861 // Extend the signature with preprocessor options. 3862 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3863 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3864 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3865 3866 for (const auto &I : getPreprocessorOpts().Macros) { 3867 // If we're supposed to ignore this macro for the purposes of modules, 3868 // don't put it into the hash. 3869 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3870 // Check whether we're ignoring this macro. 3871 StringRef MacroDef = I.first; 3872 if (hsOpts.ModulesIgnoreMacros.count( 3873 llvm::CachedHashString(MacroDef.split('=').first))) 3874 continue; 3875 } 3876 3877 code = hash_combine(code, I.first, I.second); 3878 } 3879 3880 // Extend the signature with the sysroot and other header search options. 3881 code = hash_combine(code, hsOpts.Sysroot, 3882 hsOpts.ModuleFormat, 3883 hsOpts.UseDebugInfo, 3884 hsOpts.UseBuiltinIncludes, 3885 hsOpts.UseStandardSystemIncludes, 3886 hsOpts.UseStandardCXXIncludes, 3887 hsOpts.UseLibcxx, 3888 hsOpts.ModulesValidateDiagnosticOptions); 3889 code = hash_combine(code, hsOpts.ResourceDir); 3890 3891 if (hsOpts.ModulesStrictContextHash) { 3892 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3893 hsOpts.SystemHeaderPrefixes.end()); 3894 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3895 hsOpts.UserEntries.end()); 3896 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3897 hsOpts.UserEntries.size(), UEC); 3898 3899 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3900 #define DIAGOPT(Name, Bits, Default) \ 3901 code = hash_combine(code, diagOpts.Name); 3902 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3903 code = hash_combine(code, diagOpts.get##Name()); 3904 #include "clang/Basic/DiagnosticOptions.def" 3905 #undef DIAGOPT 3906 #undef ENUM_DIAGOPT 3907 } 3908 3909 // Extend the signature with the user build path. 3910 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3911 3912 // Extend the signature with the module file extensions. 3913 const FrontendOptions &frontendOpts = getFrontendOpts(); 3914 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3915 code = ext->hashExtension(code); 3916 } 3917 3918 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3919 // affects the debug info in the PCM. 3920 if (getCodeGenOpts().DebugTypeExtRefs) 3921 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3922 code = hash_combine(code, KeyValue.first, KeyValue.second); 3923 3924 // Extend the signature with the enabled sanitizers, if at least one is 3925 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3926 SanitizerSet SanHash = LangOpts->Sanitize; 3927 SanHash.clear(getPPTransparentSanitizers()); 3928 if (!SanHash.empty()) 3929 code = hash_combine(code, SanHash.Mask); 3930 3931 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3932 } 3933 3934 void CompilerInvocation::generateCC1CommandLine( 3935 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 3936 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 3937 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 3938 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 3939 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 3940 if ((FLAGS) & options::CC1Option && \ 3941 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) \ 3942 Args.push_back(SPELLING); 3943 3944 #define OPTION_WITH_MARSHALLING_STRING( \ 3945 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3946 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3947 NORMALIZER_RET_TY, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 3948 if (((FLAGS) & options::CC1Option) && \ 3949 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) { \ 3950 if (Option::KIND##Class == Option::SeparateClass) { \ 3951 Args.push_back(SPELLING); \ 3952 Args.push_back(DENORMALIZER(SA, TABLE_INDEX, this->KEYPATH)); \ 3953 } \ 3954 } 3955 3956 #include "clang/Driver/Options.inc" 3957 #undef OPTION_WITH_MARSHALLING_STRING 3958 #undef OPTION_WITH_MARSHALLING_FLAG 3959 } 3960 3961 namespace clang { 3962 3963 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3964 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3965 DiagnosticsEngine &Diags) { 3966 return createVFSFromCompilerInvocation(CI, Diags, 3967 llvm::vfs::getRealFileSystem()); 3968 } 3969 3970 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3971 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3972 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3973 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3974 return BaseFS; 3975 3976 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3977 // earlier vfs files are on the bottom 3978 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3979 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3980 Result->getBufferForFile(File); 3981 if (!Buffer) { 3982 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3983 continue; 3984 } 3985 3986 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3987 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3988 /*DiagContext*/ nullptr, Result); 3989 if (!FS) { 3990 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3991 continue; 3992 } 3993 3994 Result = FS; 3995 } 3996 return Result; 3997 } 3998 3999 } // namespace clang 4000