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<bool> normalizeSimpleFlag(OptSpecifier Opt, 129 unsigned TableIndex, 130 const ArgList &Args, 131 DiagnosticsEngine &Diags) { 132 if (Args.hasArg(Opt)) 133 return true; 134 return None; 135 } 136 137 void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 138 const char *Spelling, 139 CompilerInvocation::StringAllocator SA, 140 unsigned TableIndex, unsigned Value) { 141 Args.push_back(Spelling); 142 } 143 144 template <typename T, T Value> 145 static llvm::Optional<T> 146 normalizeFlagToValue(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 147 DiagnosticsEngine &Diags) { 148 if (Args.hasArg(Opt)) 149 return Value; 150 return None; 151 } 152 153 static Optional<bool> normalizeBooleanFlag(OptSpecifier PosOpt, 154 OptSpecifier NegOpt, 155 unsigned TableIndex, 156 const ArgList &Args, 157 DiagnosticsEngine &Diags) { 158 if (const Arg *A = Args.getLastArg(PosOpt, NegOpt)) 159 return A->getOption().matches(PosOpt); 160 return None; 161 } 162 163 static void denormalizeBooleanFlag(SmallVectorImpl<const char *> &Args, 164 const char *Spelling, 165 const char *NegSpelling, 166 CompilerInvocation::StringAllocator SA, 167 unsigned TableIndex, unsigned Value) { 168 if (Value) 169 Args.push_back(Spelling); 170 else 171 Args.push_back(NegSpelling); 172 } 173 174 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 175 unsigned TableIndex, 176 const ArgList &Args, 177 DiagnosticsEngine &Diags) { 178 assert(TableIndex < SimpleEnumValueTablesSize); 179 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 180 181 auto *Arg = Args.getLastArg(Opt); 182 if (!Arg) 183 return None; 184 185 StringRef ArgValue = Arg->getValue(); 186 for (int I = 0, E = Table.Size; I != E; ++I) 187 if (ArgValue == Table.Table[I].Name) 188 return Table.Table[I].Value; 189 190 Diags.Report(diag::err_drv_invalid_value) 191 << Arg->getAsString(Args) << ArgValue; 192 return None; 193 } 194 195 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 196 const char *Spelling, 197 CompilerInvocation::StringAllocator SA, 198 unsigned TableIndex, unsigned Value) { 199 assert(TableIndex < SimpleEnumValueTablesSize); 200 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 201 for (int I = 0, E = Table.Size; I != E; ++I) { 202 if (Value == Table.Table[I].Value) { 203 Args.push_back(Spelling); 204 Args.push_back(Table.Table[I].Name); 205 return; 206 } 207 } 208 209 llvm_unreachable("The simple enum value was not correctly defined in " 210 "the tablegen option description"); 211 } 212 213 static void denormalizeString(SmallVectorImpl<const char *> &Args, 214 const char *Spelling, 215 CompilerInvocation::StringAllocator SA, 216 unsigned TableIndex, const std::string &Value) { 217 Args.push_back(Spelling); 218 Args.push_back(SA(Value)); 219 } 220 221 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 222 const ArgList &Args, 223 DiagnosticsEngine &Diags) { 224 auto *Arg = Args.getLastArg(Opt); 225 if (!Arg) 226 return None; 227 return llvm::Triple::normalize(Arg->getValue()); 228 } 229 230 template <typename T, typename U> 231 static T mergeForwardValue(T KeyPath, U Value) { 232 return Value; 233 } 234 235 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 236 return KeyPath | Value; 237 } 238 239 template <typename T> static T extractForwardValue(T KeyPath) { 240 return KeyPath; 241 } 242 243 template <typename T, typename U, U Value> 244 static T extractMaskValue(T KeyPath) { 245 return KeyPath & Value; 246 } 247 248 //===----------------------------------------------------------------------===// 249 // Deserialization (from args) 250 //===----------------------------------------------------------------------===// 251 252 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 253 DiagnosticsEngine &Diags) { 254 unsigned DefaultOpt = llvm::CodeGenOpt::None; 255 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 256 DefaultOpt = llvm::CodeGenOpt::Default; 257 258 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 259 if (A->getOption().matches(options::OPT_O0)) 260 return llvm::CodeGenOpt::None; 261 262 if (A->getOption().matches(options::OPT_Ofast)) 263 return llvm::CodeGenOpt::Aggressive; 264 265 assert(A->getOption().matches(options::OPT_O)); 266 267 StringRef S(A->getValue()); 268 if (S == "s" || S == "z") 269 return llvm::CodeGenOpt::Default; 270 271 if (S == "g") 272 return llvm::CodeGenOpt::Less; 273 274 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 275 } 276 277 return DefaultOpt; 278 } 279 280 static unsigned getOptimizationLevelSize(ArgList &Args) { 281 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 282 if (A->getOption().matches(options::OPT_O)) { 283 switch (A->getValue()[0]) { 284 default: 285 return 0; 286 case 's': 287 return 1; 288 case 'z': 289 return 2; 290 } 291 } 292 } 293 return 0; 294 } 295 296 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 297 OptSpecifier GroupWithValue, 298 std::vector<std::string> &Diagnostics) { 299 for (auto *A : Args.filtered(Group)) { 300 if (A->getOption().getKind() == Option::FlagClass) { 301 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 302 // its name (minus the "W" or "R" at the beginning) to the warning list. 303 Diagnostics.push_back( 304 std::string(A->getOption().getName().drop_front(1))); 305 } else if (A->getOption().matches(GroupWithValue)) { 306 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 307 Diagnostics.push_back( 308 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 309 } else { 310 // Otherwise, add its value (for OPT_W_Joined and similar). 311 for (const auto *Arg : A->getValues()) 312 Diagnostics.emplace_back(Arg); 313 } 314 } 315 } 316 317 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 318 // it won't verify the input. 319 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 320 DiagnosticsEngine *Diags); 321 322 static void getAllNoBuiltinFuncValues(ArgList &Args, 323 std::vector<std::string> &Funcs) { 324 SmallVector<const char *, 8> Values; 325 for (const auto &Arg : Args) { 326 const Option &O = Arg->getOption(); 327 if (O.matches(options::OPT_fno_builtin_)) { 328 const char *FuncName = Arg->getValue(); 329 if (Builtin::Context::isBuiltinFunc(FuncName)) 330 Values.push_back(FuncName); 331 } 332 } 333 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 334 } 335 336 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 337 DiagnosticsEngine &Diags) { 338 bool Success = true; 339 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 340 StringRef Name = A->getValue(); 341 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 342 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 343 .Case(CMDFLAG, NAME##Model) 344 #include "clang/StaticAnalyzer/Core/Analyses.def" 345 .Default(NumStores); 346 if (Value == NumStores) { 347 Diags.Report(diag::err_drv_invalid_value) 348 << A->getAsString(Args) << Name; 349 Success = false; 350 } else { 351 Opts.AnalysisStoreOpt = Value; 352 } 353 } 354 355 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 356 StringRef Name = A->getValue(); 357 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 358 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 359 .Case(CMDFLAG, NAME##Model) 360 #include "clang/StaticAnalyzer/Core/Analyses.def" 361 .Default(NumConstraints); 362 if (Value == NumConstraints) { 363 Diags.Report(diag::err_drv_invalid_value) 364 << A->getAsString(Args) << Name; 365 Success = false; 366 } else { 367 Opts.AnalysisConstraintsOpt = Value; 368 } 369 } 370 371 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 372 StringRef Name = A->getValue(); 373 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 374 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 375 .Case(CMDFLAG, PD_##NAME) 376 #include "clang/StaticAnalyzer/Core/Analyses.def" 377 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 378 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 379 Diags.Report(diag::err_drv_invalid_value) 380 << A->getAsString(Args) << Name; 381 Success = false; 382 } else { 383 Opts.AnalysisDiagOpt = Value; 384 } 385 } 386 387 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 388 StringRef Name = A->getValue(); 389 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 390 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 391 .Case(CMDFLAG, NAME) 392 #include "clang/StaticAnalyzer/Core/Analyses.def" 393 .Default(NumPurgeModes); 394 if (Value == NumPurgeModes) { 395 Diags.Report(diag::err_drv_invalid_value) 396 << A->getAsString(Args) << Name; 397 Success = false; 398 } else { 399 Opts.AnalysisPurgeOpt = Value; 400 } 401 } 402 403 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 404 StringRef Name = A->getValue(); 405 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 406 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 407 .Case(CMDFLAG, NAME) 408 #include "clang/StaticAnalyzer/Core/Analyses.def" 409 .Default(NumInliningModes); 410 if (Value == NumInliningModes) { 411 Diags.Report(diag::err_drv_invalid_value) 412 << A->getAsString(Args) << Name; 413 Success = false; 414 } else { 415 Opts.InliningMode = Value; 416 } 417 } 418 419 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 420 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 421 Opts.ShowCheckerHelpDeveloper = 422 Args.hasArg(OPT_analyzer_checker_help_developer); 423 424 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 425 Opts.ShowCheckerOptionAlphaList = 426 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 427 Opts.ShowCheckerOptionDeveloperList = 428 Args.hasArg(OPT_analyzer_checker_option_help_developer); 429 430 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 431 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 432 Opts.ShouldEmitErrorsOnInvalidConfigValue = 433 /* negated */!llvm::StringSwitch<bool>( 434 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 435 .Case("true", true) 436 .Case("false", false) 437 .Default(false); 438 Opts.DisableAllCheckers = Args.hasArg(OPT_analyzer_disable_all_checks); 439 440 Opts.visualizeExplodedGraphWithGraphViz = 441 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 442 Opts.DumpExplodedGraphTo = 443 std::string(Args.getLastArgValue(OPT_analyzer_dump_egraph)); 444 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 445 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 446 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 447 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 448 Opts.AnalyzeNestedBlocks = 449 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 450 Opts.AnalyzeSpecificFunction = 451 std::string(Args.getLastArgValue(OPT_analyze_function)); 452 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 453 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 454 Opts.maxBlockVisitOnPath = 455 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 456 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 457 Opts.InlineMaxStackDepth = 458 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 459 Opts.InlineMaxStackDepth, Diags); 460 461 Opts.CheckersAndPackages.clear(); 462 for (const Arg *A : 463 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 464 A->claim(); 465 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 466 // We can have a list of comma separated checker names, e.g: 467 // '-analyzer-checker=cocoa,unix' 468 StringRef CheckerAndPackageList = A->getValue(); 469 SmallVector<StringRef, 16> CheckersAndPackages; 470 CheckerAndPackageList.split(CheckersAndPackages, ","); 471 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 472 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 473 IsEnabled); 474 } 475 476 // Go through the analyzer configuration options. 477 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 478 479 // We can have a list of comma separated config names, e.g: 480 // '-analyzer-config key1=val1,key2=val2' 481 StringRef configList = A->getValue(); 482 SmallVector<StringRef, 4> configVals; 483 configList.split(configVals, ","); 484 for (const auto &configVal : configVals) { 485 StringRef key, val; 486 std::tie(key, val) = configVal.split("="); 487 if (val.empty()) { 488 Diags.Report(SourceLocation(), 489 diag::err_analyzer_config_no_value) << configVal; 490 Success = false; 491 break; 492 } 493 if (val.find('=') != StringRef::npos) { 494 Diags.Report(SourceLocation(), 495 diag::err_analyzer_config_multiple_values) 496 << configVal; 497 Success = false; 498 break; 499 } 500 501 // TODO: Check checker options too, possibly in CheckerRegistry. 502 // Leave unknown non-checker configs unclaimed. 503 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 504 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 505 Diags.Report(diag::err_analyzer_config_unknown) << key; 506 continue; 507 } 508 509 A->claim(); 510 Opts.Config[key] = std::string(val); 511 } 512 } 513 514 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 515 parseAnalyzerConfigs(Opts, &Diags); 516 else 517 parseAnalyzerConfigs(Opts, nullptr); 518 519 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 520 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 521 if (i != 0) 522 os << " "; 523 os << Args.getArgString(i); 524 } 525 os.flush(); 526 527 return Success; 528 } 529 530 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 531 StringRef OptionName, StringRef DefaultVal) { 532 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 533 } 534 535 static void initOption(AnalyzerOptions::ConfigTable &Config, 536 DiagnosticsEngine *Diags, 537 StringRef &OptionField, StringRef Name, 538 StringRef DefaultVal) { 539 // String options may be known to invalid (e.g. if the expected string is a 540 // file name, but the file does not exist), those will have to be checked in 541 // parseConfigs. 542 OptionField = getStringOption(Config, Name, DefaultVal); 543 } 544 545 static void initOption(AnalyzerOptions::ConfigTable &Config, 546 DiagnosticsEngine *Diags, 547 bool &OptionField, StringRef Name, bool DefaultVal) { 548 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 549 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 550 .Case("true", true) 551 .Case("false", false) 552 .Default(None); 553 554 if (!PossiblyInvalidVal) { 555 if (Diags) 556 Diags->Report(diag::err_analyzer_config_invalid_input) 557 << Name << "a boolean"; 558 else 559 OptionField = DefaultVal; 560 } else 561 OptionField = PossiblyInvalidVal.getValue(); 562 } 563 564 static void initOption(AnalyzerOptions::ConfigTable &Config, 565 DiagnosticsEngine *Diags, 566 unsigned &OptionField, StringRef Name, 567 unsigned DefaultVal) { 568 569 OptionField = DefaultVal; 570 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 571 .getAsInteger(0, OptionField); 572 if (Diags && HasFailed) 573 Diags->Report(diag::err_analyzer_config_invalid_input) 574 << Name << "an unsigned"; 575 } 576 577 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 578 DiagnosticsEngine *Diags) { 579 // TODO: There's no need to store the entire configtable, it'd be plenty 580 // enough tostore checker options. 581 582 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 583 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 584 585 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 586 SHALLOW_VAL, DEEP_VAL) \ 587 switch (AnOpts.getUserMode()) { \ 588 case UMK_Shallow: \ 589 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 590 break; \ 591 case UMK_Deep: \ 592 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 593 break; \ 594 } \ 595 596 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 597 #undef ANALYZER_OPTION 598 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 599 600 // At this point, AnalyzerOptions is configured. Let's validate some options. 601 602 // FIXME: Here we try to validate the silenced checkers or packages are valid. 603 // The current approach only validates the registered checkers which does not 604 // contain the runtime enabled checkers and optimally we would validate both. 605 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 606 std::vector<StringRef> Checkers = 607 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 608 std::vector<StringRef> Packages = 609 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 610 611 SmallVector<StringRef, 16> CheckersAndPackages; 612 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 613 614 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 615 if (Diags) { 616 bool IsChecker = CheckerOrPackage.contains('.'); 617 bool IsValidName = 618 IsChecker 619 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 620 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 621 622 if (!IsValidName) 623 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 624 << CheckerOrPackage; 625 } 626 627 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 628 } 629 } 630 631 if (!Diags) 632 return; 633 634 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 635 Diags->Report(diag::err_analyzer_config_invalid_input) 636 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 637 638 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 639 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 640 << "a filename"; 641 642 if (!AnOpts.ModelPath.empty() && 643 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 644 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 645 << "a filename"; 646 } 647 648 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 649 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 650 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 651 return true; 652 } 653 654 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 655 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 656 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 657 } 658 659 /// Create a new Regex instance out of the string value in \p RpassArg. 660 /// It returns a pointer to the newly generated Regex instance. 661 static std::shared_ptr<llvm::Regex> 662 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 663 Arg *RpassArg) { 664 StringRef Val = RpassArg->getValue(); 665 std::string RegexError; 666 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 667 if (!Pattern->isValid(RegexError)) { 668 Diags.Report(diag::err_drv_optimization_remark_pattern) 669 << RegexError << RpassArg->getAsString(Args); 670 Pattern.reset(); 671 } 672 return Pattern; 673 } 674 675 static bool parseDiagnosticLevelMask(StringRef FlagName, 676 const std::vector<std::string> &Levels, 677 DiagnosticsEngine *Diags, 678 DiagnosticLevelMask &M) { 679 bool Success = true; 680 for (const auto &Level : Levels) { 681 DiagnosticLevelMask const PM = 682 llvm::StringSwitch<DiagnosticLevelMask>(Level) 683 .Case("note", DiagnosticLevelMask::Note) 684 .Case("remark", DiagnosticLevelMask::Remark) 685 .Case("warning", DiagnosticLevelMask::Warning) 686 .Case("error", DiagnosticLevelMask::Error) 687 .Default(DiagnosticLevelMask::None); 688 if (PM == DiagnosticLevelMask::None) { 689 Success = false; 690 if (Diags) 691 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 692 } 693 M = M | PM; 694 } 695 return Success; 696 } 697 698 static void parseSanitizerKinds(StringRef FlagName, 699 const std::vector<std::string> &Sanitizers, 700 DiagnosticsEngine &Diags, SanitizerSet &S) { 701 for (const auto &Sanitizer : Sanitizers) { 702 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 703 if (K == SanitizerMask()) 704 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 705 else 706 S.set(K, true); 707 } 708 } 709 710 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 711 ArgList &Args, DiagnosticsEngine &D, 712 XRayInstrSet &S) { 713 llvm::SmallVector<StringRef, 2> BundleParts; 714 llvm::SplitString(Bundle, BundleParts, ","); 715 for (const auto &B : BundleParts) { 716 auto Mask = parseXRayInstrValue(B); 717 if (Mask == XRayInstrKind::None) 718 if (B != "none") 719 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 720 else 721 S.Mask = Mask; 722 else if (Mask == XRayInstrKind::All) 723 S.Mask = Mask; 724 else 725 S.set(Mask, true); 726 } 727 } 728 729 // Set the profile kind for fprofile-instrument. 730 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 731 DiagnosticsEngine &Diags) { 732 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 733 if (A == nullptr) 734 return; 735 StringRef S = A->getValue(); 736 unsigned I = llvm::StringSwitch<unsigned>(S) 737 .Case("none", CodeGenOptions::ProfileNone) 738 .Case("clang", CodeGenOptions::ProfileClangInstr) 739 .Case("llvm", CodeGenOptions::ProfileIRInstr) 740 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 741 .Default(~0U); 742 if (I == ~0U) { 743 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 744 << S; 745 return; 746 } 747 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 748 Opts.setProfileInstr(Instrumentor); 749 } 750 751 // Set the profile kind using fprofile-instrument-use-path. 752 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 753 const Twine &ProfileName) { 754 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 755 // In error, return silently and let Clang PGOUse report the error message. 756 if (auto E = ReaderOrErr.takeError()) { 757 llvm::consumeError(std::move(E)); 758 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 759 return; 760 } 761 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 762 std::move(ReaderOrErr.get()); 763 if (PGOReader->isIRLevelProfile()) { 764 if (PGOReader->hasCSIRLevelProfile()) 765 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 766 else 767 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 768 } else 769 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 770 } 771 772 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 773 DiagnosticsEngine &Diags, 774 const TargetOptions &TargetOpts, 775 const FrontendOptions &FrontendOpts) { 776 bool Success = true; 777 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 778 779 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 780 // TODO: This could be done in Driver 781 unsigned MaxOptLevel = 3; 782 if (OptimizationLevel > MaxOptLevel) { 783 // If the optimization level is not supported, fall back on the default 784 // optimization 785 Diags.Report(diag::warn_drv_optimization_value) 786 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 787 OptimizationLevel = MaxOptLevel; 788 } 789 Opts.OptimizationLevel = OptimizationLevel; 790 791 // At O0 we want to fully disable inlining outside of cases marked with 792 // 'alwaysinline' that are required for correctness. 793 Opts.setInlining((Opts.OptimizationLevel == 0) 794 ? CodeGenOptions::OnlyAlwaysInlining 795 : CodeGenOptions::NormalInlining); 796 // Explicit inlining flags can disable some or all inlining even at 797 // optimization levels above zero. 798 if (Arg *InlineArg = Args.getLastArg( 799 options::OPT_finline_functions, options::OPT_finline_hint_functions, 800 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 801 if (Opts.OptimizationLevel > 0) { 802 const Option &InlineOpt = InlineArg->getOption(); 803 if (InlineOpt.matches(options::OPT_finline_functions)) 804 Opts.setInlining(CodeGenOptions::NormalInlining); 805 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 806 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 807 else 808 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 809 } 810 } 811 812 Opts.DebugPassManager = 813 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 814 /* Default */ false); 815 816 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 817 StringRef Name = A->getValue(); 818 if (Name == "Accelerate") 819 Opts.setVecLib(CodeGenOptions::Accelerate); 820 else if (Name == "libmvec") 821 Opts.setVecLib(CodeGenOptions::LIBMVEC); 822 else if (Name == "MASSV") 823 Opts.setVecLib(CodeGenOptions::MASSV); 824 else if (Name == "SVML") 825 Opts.setVecLib(CodeGenOptions::SVML); 826 else if (Name == "none") 827 Opts.setVecLib(CodeGenOptions::NoLibrary); 828 else 829 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 830 } 831 832 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 833 unsigned Val = 834 llvm::StringSwitch<unsigned>(A->getValue()) 835 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 836 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 837 .Case("constructor", codegenoptions::DebugInfoConstructor) 838 .Case("limited", codegenoptions::LimitedDebugInfo) 839 .Case("standalone", codegenoptions::FullDebugInfo) 840 .Case("unused-types", codegenoptions::UnusedTypeInfo) 841 .Default(~0U); 842 if (Val == ~0U) 843 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 844 << A->getValue(); 845 else 846 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 847 } 848 // If -fuse-ctor-homing is set and limited debug info is already on, then use 849 // constructor homing. 850 if (Args.getLastArg(OPT_fuse_ctor_homing)) 851 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 852 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 853 854 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 855 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 856 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 857 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 858 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 859 .Default(~0U); 860 if (Val == ~0U) 861 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 862 << A->getValue(); 863 else 864 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 865 } 866 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 867 Opts.DebugColumnInfo = !Args.hasArg(OPT_gno_column_info); 868 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 869 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 870 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 871 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 872 Opts.VirtualFunctionElimination = 873 Args.hasArg(OPT_fvirtual_function_elimination); 874 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 875 Opts.SplitDwarfFile = std::string(Args.getLastArgValue(OPT_split_dwarf_file)); 876 Opts.SplitDwarfOutput = 877 std::string(Args.getLastArgValue(OPT_split_dwarf_output)); 878 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 879 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 880 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 881 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 882 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 883 Opts.ForceDwarfFrameSection = Args.hasArg(OPT_fforce_dwarf_frame); 884 885 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 886 auto Split = StringRef(Arg).split('='); 887 Opts.DebugPrefixMap.insert( 888 {std::string(Split.first), std::string(Split.second)}); 889 } 890 891 if (const Arg *A = 892 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 893 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 894 895 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 896 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 897 898 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 899 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 900 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 901 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 902 903 llvm::Triple T(TargetOpts.Triple); 904 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 905 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 906 Opts.EmitCallSiteInfo = true; 907 908 Opts.ValueTrackingVariableLocations = 909 Args.hasArg(OPT_fexperimental_debug_variable_locations); 910 911 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 912 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 913 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 914 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 915 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 916 OPT_fuse_register_sized_bitfield_access); 917 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 918 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 919 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 920 Args.hasArg(OPT_new_struct_path_tbaa); 921 Opts.FineGrainedBitfieldAccesses = 922 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 923 OPT_fno_fine_grained_bitfield_accesses, false); 924 Opts.DwarfDebugFlags = 925 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 926 Opts.RecordCommandLine = 927 std::string(Args.getLastArgValue(OPT_record_command_line)); 928 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 929 Opts.NoCommon = !Args.hasArg(OPT_fcommon); 930 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables); 931 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 932 Opts.OptimizeSize = getOptimizationLevelSize(Args); 933 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 934 Args.hasArg(OPT_ffreestanding)); 935 if (Opts.SimplifyLibCalls) 936 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 937 Opts.UnrollLoops = 938 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 939 (Opts.OptimizationLevel > 1)); 940 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 941 942 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 943 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 944 Opts.SampleProfileFile = 945 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 946 Opts.DebugInfoForProfiling = Args.hasFlag( 947 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 948 Opts.DebugNameTable = static_cast<unsigned>( 949 Args.hasArg(OPT_ggnu_pubnames) 950 ? llvm::DICompileUnit::DebugNameTableKind::GNU 951 : Args.hasArg(OPT_gpubnames) 952 ? llvm::DICompileUnit::DebugNameTableKind::Default 953 : llvm::DICompileUnit::DebugNameTableKind::None); 954 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 955 956 setPGOInstrumentor(Opts, Args, Diags); 957 Opts.AtomicProfileUpdate = Args.hasArg(OPT_fprofile_update_EQ); 958 Opts.InstrProfileOutput = 959 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 960 Opts.ProfileInstrumentUsePath = 961 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 962 if (!Opts.ProfileInstrumentUsePath.empty()) 963 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 964 Opts.ProfileRemappingFile = 965 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 966 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 967 Diags.Report(diag::err_drv_argument_only_allowed_with) 968 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 969 << "-fexperimental-new-pass-manager"; 970 } 971 972 Opts.CoverageMapping = 973 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 974 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 975 Opts.AsmVerbose = !Args.hasArg(OPT_fno_verbose_asm); 976 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 977 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 978 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 979 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 980 Opts.RegisterGlobalDtorsWithAtExit = 981 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 982 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 983 Opts.CodeModel = TargetOpts.CodeModel; 984 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 985 986 // Handle -mframe-pointer option. 987 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 988 CodeGenOptions::FramePointerKind FP; 989 StringRef Name = A->getValue(); 990 bool ValidFP = true; 991 if (Name == "none") 992 FP = CodeGenOptions::FramePointerKind::None; 993 else if (Name == "non-leaf") 994 FP = CodeGenOptions::FramePointerKind::NonLeaf; 995 else if (Name == "all") 996 FP = CodeGenOptions::FramePointerKind::All; 997 else { 998 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 999 Success = false; 1000 ValidFP = false; 1001 } 1002 if (ValidFP) 1003 Opts.setFramePointer(FP); 1004 } 1005 1006 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1007 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 1008 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 1009 Opts.NoEscapingBlockTailCalls = 1010 Args.hasArg(OPT_fno_escaping_block_tail_calls); 1011 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 1012 Opts.LimitFloatPrecision = 1013 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 1014 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 1015 Opts.StrictFloatCastOverflow = 1016 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 1017 1018 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_fno_zero_initialized_in_bss); 1019 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 1020 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 1021 Opts.SmallDataLimit = 1022 getLastArgIntValue(Args, OPT_msmall_data_limit, 0, Diags); 1023 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 1024 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 1025 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 1026 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 1027 Opts.IncrementalLinkerCompatible = 1028 Args.hasArg(OPT_mincremental_linker_compatible); 1029 Opts.PIECopyRelocations = 1030 Args.hasArg(OPT_mpie_copy_relocations); 1031 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 1032 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 1033 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 1034 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 1035 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 1036 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 1037 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 1038 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 1039 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 1040 Opts.ThreadModel = 1041 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 1042 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 1043 Diags.Report(diag::err_drv_invalid_value) 1044 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 1045 << Opts.ThreadModel; 1046 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 1047 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 1048 1049 Opts.BBSections = 1050 std::string(Args.getLastArgValue(OPT_fbasic_block_sections_EQ, "none")); 1051 1052 // Basic Block Sections implies Function Sections. 1053 Opts.FunctionSections = 1054 Args.hasArg(OPT_ffunction_sections) || 1055 (Opts.BBSections != "none" && Opts.BBSections != "labels"); 1056 1057 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 1058 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 1059 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 1060 Opts.UniqueBasicBlockSectionNames = 1061 Args.hasArg(OPT_funique_basic_block_section_names); 1062 Opts.UniqueInternalLinkageNames = 1063 Args.hasArg(OPT_funique_internal_linkage_names); 1064 1065 Opts.SplitMachineFunctions = Args.hasArg(OPT_fsplit_machine_functions); 1066 1067 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 1068 1069 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 1070 1071 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 1072 1073 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 1074 1075 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1076 Opts.PrepareForThinLTO = false; 1077 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1078 StringRef S = A->getValue(); 1079 if (S == "thin") 1080 Opts.PrepareForThinLTO = true; 1081 else if (S != "full") 1082 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1083 } 1084 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 1085 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 1086 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1087 if (IK.getLanguage() != Language::LLVM_IR) 1088 Diags.Report(diag::err_drv_argument_only_allowed_with) 1089 << A->getAsString(Args) << "-x ir"; 1090 Opts.ThinLTOIndexFile = 1091 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1092 } 1093 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1094 Opts.SaveTempsFilePrefix = 1095 llvm::StringSwitch<std::string>(A->getValue()) 1096 .Case("obj", FrontendOpts.OutputFile) 1097 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 1098 1099 Opts.ThinLinkBitcodeFile = 1100 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 1101 1102 // The memory profile runtime appends the pid to make this name more unique. 1103 const char *MemProfileBasename = "memprof.profraw"; 1104 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1105 SmallString<128> Path( 1106 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1107 llvm::sys::path::append(Path, MemProfileBasename); 1108 Opts.MemoryProfileOutput = std::string(Path); 1109 } else if (Args.hasArg(OPT_fmemory_profile)) 1110 Opts.MemoryProfileOutput = MemProfileBasename; 1111 1112 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 1113 1114 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 1115 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 1116 1117 Opts.PreferVectorWidth = 1118 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1119 1120 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1121 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1122 1123 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1124 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1125 1126 Opts.EmitGcovNotes = Args.hasArg(OPT_ftest_coverage); 1127 Opts.EmitGcovArcs = Args.hasArg(OPT_fprofile_arcs); 1128 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1129 Opts.CoverageDataFile = 1130 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1131 Opts.CoverageNotesFile = 1132 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1133 Opts.ProfileFilterFiles = 1134 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1135 Opts.ProfileExcludeFiles = 1136 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1137 if (Args.hasArg(OPT_coverage_version_EQ)) { 1138 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1139 if (CoverageVersion.size() != 4) { 1140 Diags.Report(diag::err_drv_invalid_value) 1141 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1142 << CoverageVersion; 1143 } else { 1144 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1145 } 1146 } 1147 } 1148 // Handle -fembed-bitcode option. 1149 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1150 StringRef Name = A->getValue(); 1151 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1152 .Case("off", CodeGenOptions::Embed_Off) 1153 .Case("all", CodeGenOptions::Embed_All) 1154 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1155 .Case("marker", CodeGenOptions::Embed_Marker) 1156 .Default(~0U); 1157 if (Model == ~0U) { 1158 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1159 Success = false; 1160 } else 1161 Opts.setEmbedBitcode( 1162 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1163 } 1164 // FIXME: For backend options that are not yet recorded as function 1165 // attributes in the IR, keep track of them so we can embed them in a 1166 // separate data section and use them when building the bitcode. 1167 for (const auto &A : Args) { 1168 // Do not encode output and input. 1169 if (A->getOption().getID() == options::OPT_o || 1170 A->getOption().getID() == options::OPT_INPUT || 1171 A->getOption().getID() == options::OPT_x || 1172 A->getOption().getID() == options::OPT_fembed_bitcode || 1173 A->getOption().matches(options::OPT_W_Group)) 1174 continue; 1175 ArgStringList ASL; 1176 A->render(Args, ASL); 1177 for (const auto &arg : ASL) { 1178 StringRef ArgStr(arg); 1179 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1180 // using \00 to separate each commandline options. 1181 Opts.CmdArgs.push_back('\0'); 1182 } 1183 } 1184 1185 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1186 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1187 Opts.InstrumentFunctionsAfterInlining = 1188 Args.hasArg(OPT_finstrument_functions_after_inlining); 1189 Opts.InstrumentFunctionEntryBare = 1190 Args.hasArg(OPT_finstrument_function_entry_bare); 1191 1192 Opts.XRayInstrumentFunctions = 1193 Args.hasArg(OPT_fxray_instrument); 1194 Opts.XRayAlwaysEmitCustomEvents = 1195 Args.hasArg(OPT_fxray_always_emit_customevents); 1196 Opts.XRayAlwaysEmitTypedEvents = 1197 Args.hasArg(OPT_fxray_always_emit_typedevents); 1198 Opts.XRayInstructionThreshold = 1199 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1200 Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops); 1201 Opts.XRayOmitFunctionIndex = Args.hasArg(OPT_fno_xray_function_index); 1202 Opts.XRayTotalFunctionGroups = 1203 getLastArgIntValue(Args, OPT_fxray_function_groups, 1, Diags); 1204 Opts.XRaySelectedFunctionGroup = 1205 getLastArgIntValue(Args, OPT_fxray_selected_function_group, 0, Diags); 1206 1207 auto XRayInstrBundles = 1208 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1209 if (XRayInstrBundles.empty()) 1210 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1211 else 1212 for (const auto &A : XRayInstrBundles) 1213 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1214 Diags, Opts.XRayInstrumentationBundle); 1215 1216 Opts.PatchableFunctionEntryCount = 1217 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1218 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1219 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1220 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1221 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1222 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1223 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1224 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1225 1226 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1227 StringRef Name = A->getValue(); 1228 if (Name == "full") { 1229 Opts.CFProtectionReturn = 1; 1230 Opts.CFProtectionBranch = 1; 1231 } else if (Name == "return") 1232 Opts.CFProtectionReturn = 1; 1233 else if (Name == "branch") 1234 Opts.CFProtectionBranch = 1; 1235 else if (Name != "none") { 1236 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1237 Success = false; 1238 } 1239 } 1240 1241 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections_EQ)) { 1242 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1243 .Case("none", llvm::DebugCompressionType::None) 1244 .Case("zlib", llvm::DebugCompressionType::Z) 1245 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1246 .Default(llvm::DebugCompressionType::None); 1247 Opts.setCompressDebugSections(DCT); 1248 } 1249 1250 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1251 Opts.DebugCompilationDir = 1252 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1253 for (auto *A : 1254 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1255 CodeGenOptions::BitcodeFileToLink F; 1256 F.Filename = A->getValue(); 1257 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1258 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1259 // When linking CUDA bitcode, propagate function attributes so that 1260 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1261 F.PropagateAttrs = true; 1262 F.Internalize = true; 1263 } 1264 Opts.LinkBitcodeFiles.push_back(F); 1265 } 1266 Opts.SanitizeCoverageType = 1267 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1268 Opts.SanitizeCoverageIndirectCalls = 1269 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1270 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1271 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1272 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1273 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1274 Opts.SanitizeCoverage8bitCounters = 1275 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1276 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1277 Opts.SanitizeCoverageTracePCGuard = 1278 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1279 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1280 Opts.SanitizeCoverageInline8bitCounters = 1281 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1282 Opts.SanitizeCoverageInlineBoolFlag = 1283 Args.hasArg(OPT_fsanitize_coverage_inline_bool_flag); 1284 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1285 Opts.SanitizeCoverageStackDepth = 1286 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1287 Opts.SanitizeCoverageAllowlistFiles = 1288 Args.getAllArgValues(OPT_fsanitize_coverage_allowlist); 1289 Opts.SanitizeCoverageBlocklistFiles = 1290 Args.getAllArgValues(OPT_fsanitize_coverage_blocklist); 1291 Opts.SanitizeMemoryTrackOrigins = 1292 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1293 Opts.SanitizeMemoryUseAfterDtor = 1294 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1295 OPT_fno_sanitize_memory_use_after_dtor, 1296 false); 1297 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1298 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1299 Opts.SanitizeCfiICallGeneralizePointers = 1300 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1301 Opts.SanitizeCfiCanonicalJumpTables = 1302 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1303 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1304 if (Arg *A = Args.getLastArg( 1305 OPT_fsanitize_address_poison_custom_array_cookie, 1306 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1307 Opts.SanitizeAddressPoisonCustomArrayCookie = 1308 A->getOption().getID() == 1309 OPT_fsanitize_address_poison_custom_array_cookie; 1310 } 1311 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1312 OPT_fno_sanitize_address_use_after_scope)) { 1313 Opts.SanitizeAddressUseAfterScope = 1314 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1315 } 1316 Opts.SanitizeAddressGlobalsDeadStripping = 1317 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1318 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1319 OPT_fno_sanitize_address_use_odr_indicator)) { 1320 Opts.SanitizeAddressUseOdrIndicator = 1321 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1322 } 1323 Opts.SSPBufferSize = 1324 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1325 1326 Opts.StackProtectorGuard = 1327 std::string(Args.getLastArgValue(OPT_mstack_protector_guard_EQ)); 1328 1329 if (Arg *A = Args.getLastArg(OPT_mstack_protector_guard_offset_EQ)) { 1330 StringRef Val = A->getValue(); 1331 unsigned Offset = Opts.StackProtectorGuardOffset; 1332 Val.getAsInteger(10, Offset); 1333 Opts.StackProtectorGuardOffset = Offset; 1334 } 1335 1336 Opts.StackProtectorGuardReg = 1337 std::string(Args.getLastArgValue(OPT_mstack_protector_guard_reg_EQ, 1338 "none")); 1339 1340 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1341 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1342 StringRef Val = A->getValue(); 1343 unsigned StackAlignment = Opts.StackAlignment; 1344 Val.getAsInteger(10, StackAlignment); 1345 Opts.StackAlignment = StackAlignment; 1346 } 1347 1348 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1349 StringRef Val = A->getValue(); 1350 unsigned StackProbeSize = Opts.StackProbeSize; 1351 Val.getAsInteger(0, StackProbeSize); 1352 Opts.StackProbeSize = StackProbeSize; 1353 } 1354 1355 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1356 1357 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1358 1359 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1360 StringRef Name = A->getValue(); 1361 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1362 .Case("legacy", CodeGenOptions::Legacy) 1363 .Case("non-legacy", CodeGenOptions::NonLegacy) 1364 .Case("mixed", CodeGenOptions::Mixed) 1365 .Default(~0U); 1366 if (Method == ~0U) { 1367 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1368 Success = false; 1369 } else { 1370 Opts.setObjCDispatchMethod( 1371 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1372 } 1373 } 1374 1375 1376 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1377 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1378 1379 if (Args.getLastArg(OPT_femulated_tls) || 1380 Args.getLastArg(OPT_fno_emulated_tls)) { 1381 Opts.ExplicitEmulatedTLS = true; 1382 Opts.EmulatedTLS = 1383 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1384 } 1385 1386 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1387 StringRef Name = A->getValue(); 1388 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1389 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1390 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1391 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1392 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1393 .Default(~0U); 1394 if (Model == ~0U) { 1395 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1396 Success = false; 1397 } else { 1398 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1399 } 1400 } 1401 1402 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1403 1404 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1405 StringRef Val = A->getValue(); 1406 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1407 if (!Opts.FPDenormalMode.isValid()) 1408 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1409 } 1410 1411 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1412 StringRef Val = A->getValue(); 1413 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1414 if (!Opts.FP32DenormalMode.isValid()) 1415 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1416 } 1417 1418 // X86_32 has -fppc-struct-return and -freg-struct-return. 1419 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1420 if (Arg *A = 1421 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1422 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1423 // TODO: We might want to consider enabling these options on AIX in the 1424 // future. 1425 if (T.isOSAIX()) 1426 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1427 << A->getSpelling() << T.str(); 1428 1429 const Option &O = A->getOption(); 1430 if (O.matches(OPT_fpcc_struct_return) || 1431 O.matches(OPT_maix_struct_return)) { 1432 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1433 } else { 1434 assert(O.matches(OPT_freg_struct_return) || 1435 O.matches(OPT_msvr4_struct_return)); 1436 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1437 } 1438 } 1439 1440 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 1441 !Args.hasArg(OPT_fvisibility))) 1442 Opts.IgnoreXCOFFVisibility = 1; 1443 1444 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1445 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1446 bool NeedLocTracking = false; 1447 1448 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1449 if (!Opts.OptRecordFile.empty()) 1450 NeedLocTracking = true; 1451 1452 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1453 Opts.OptRecordPasses = A->getValue(); 1454 NeedLocTracking = true; 1455 } 1456 1457 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1458 Opts.OptRecordFormat = A->getValue(); 1459 NeedLocTracking = true; 1460 } 1461 1462 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1463 Opts.OptimizationRemarkPattern = 1464 GenerateOptimizationRemarkRegex(Diags, Args, A); 1465 NeedLocTracking = true; 1466 } 1467 1468 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1469 Opts.OptimizationRemarkMissedPattern = 1470 GenerateOptimizationRemarkRegex(Diags, Args, A); 1471 NeedLocTracking = true; 1472 } 1473 1474 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1475 Opts.OptimizationRemarkAnalysisPattern = 1476 GenerateOptimizationRemarkRegex(Diags, Args, A); 1477 NeedLocTracking = true; 1478 } 1479 1480 Opts.DiagnosticsWithHotness = 1481 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1482 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1483 bool UsingProfile = UsingSampleProfile || 1484 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1485 1486 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1487 // An IR file will contain PGO as metadata 1488 IK.getLanguage() != Language::LLVM_IR) 1489 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1490 << "-fdiagnostics-show-hotness"; 1491 1492 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1493 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1494 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1495 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1496 << "-fdiagnostics-hotness-threshold="; 1497 1498 // If the user requested to use a sample profile for PGO, then the 1499 // backend will need to track source location information so the profile 1500 // can be incorporated into the IR. 1501 if (UsingSampleProfile) 1502 NeedLocTracking = true; 1503 1504 // If the user requested a flag that requires source locations available in 1505 // the backend, make sure that the backend tracks source location information. 1506 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1507 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1508 1509 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1510 1511 // Parse -fsanitize-recover= arguments. 1512 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1513 parseSanitizerKinds("-fsanitize-recover=", 1514 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1515 Opts.SanitizeRecover); 1516 parseSanitizerKinds("-fsanitize-trap=", 1517 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1518 Opts.SanitizeTrap); 1519 1520 Opts.CudaGpuBinaryFileName = 1521 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1522 1523 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1524 1525 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1526 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1527 1528 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1529 1530 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1531 1532 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1533 1534 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1535 1536 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1537 1538 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1539 1540 Opts.SymbolPartition = 1541 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1542 1543 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1544 Opts.AAPCSBitfieldWidth = 1545 Args.hasFlag(OPT_AAPCSBitfieldWidth, OPT_ForceNoAAPCSBitfieldWidth, true); 1546 1547 Opts.PassByValueIsNoAlias = Args.hasArg(OPT_fpass_by_value_is_noalias); 1548 1549 return Success; 1550 } 1551 1552 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1553 ArgList &Args) { 1554 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1555 Opts.Targets = Args.getAllArgValues(OPT_MT); 1556 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1557 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1558 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1559 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1560 Opts.HeaderIncludeOutputFile = 1561 std::string(Args.getLastArgValue(OPT_header_include_file)); 1562 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1563 if (Args.hasArg(OPT_show_includes)) { 1564 // Writing both /showIncludes and preprocessor output to stdout 1565 // would produce interleaved output, so use stderr for /showIncludes. 1566 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1567 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1568 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1569 else 1570 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1571 } else { 1572 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1573 } 1574 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1575 Opts.ModuleDependencyOutputDir = 1576 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1577 if (Args.hasArg(OPT_MV)) 1578 Opts.OutputFormat = DependencyOutputFormat::NMake; 1579 // Add sanitizer blacklists as extra dependencies. 1580 // They won't be discovered by the regular preprocessor, so 1581 // we let make / ninja to know about this implicit dependency. 1582 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1583 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1584 StringRef Val = A->getValue(); 1585 if (Val.find('=') == StringRef::npos) 1586 Opts.ExtraDeps.push_back(std::string(Val)); 1587 } 1588 if (Opts.IncludeSystemHeaders) { 1589 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1590 StringRef Val = A->getValue(); 1591 if (Val.find('=') == StringRef::npos) 1592 Opts.ExtraDeps.push_back(std::string(Val)); 1593 } 1594 } 1595 } 1596 1597 // Propagate the extra dependencies. 1598 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1599 Opts.ExtraDeps.push_back(A->getValue()); 1600 } 1601 1602 // Only the -fmodule-file=<file> form. 1603 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1604 StringRef Val = A->getValue(); 1605 if (Val.find('=') == StringRef::npos) 1606 Opts.ExtraDeps.push_back(std::string(Val)); 1607 } 1608 } 1609 1610 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1611 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1612 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1613 // Support both clang's -f[no-]color-diagnostics and gcc's 1614 // -f[no-]diagnostics-colors[=never|always|auto]. 1615 enum { 1616 Colors_On, 1617 Colors_Off, 1618 Colors_Auto 1619 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1620 for (auto *A : Args) { 1621 const Option &O = A->getOption(); 1622 if (O.matches(options::OPT_fcolor_diagnostics) || 1623 O.matches(options::OPT_fdiagnostics_color)) { 1624 ShowColors = Colors_On; 1625 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1626 O.matches(options::OPT_fno_diagnostics_color)) { 1627 ShowColors = Colors_Off; 1628 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1629 StringRef Value(A->getValue()); 1630 if (Value == "always") 1631 ShowColors = Colors_On; 1632 else if (Value == "never") 1633 ShowColors = Colors_Off; 1634 else if (Value == "auto") 1635 ShowColors = Colors_Auto; 1636 } 1637 } 1638 return ShowColors == Colors_On || 1639 (ShowColors == Colors_Auto && 1640 llvm::sys::Process::StandardErrHasColors()); 1641 } 1642 1643 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1644 DiagnosticsEngine *Diags) { 1645 bool Success = true; 1646 for (const auto &Prefix : VerifyPrefixes) { 1647 // Every prefix must start with a letter and contain only alphanumeric 1648 // characters, hyphens, and underscores. 1649 auto BadChar = llvm::find_if(Prefix, [](char C) { 1650 return !isAlphanumeric(C) && C != '-' && C != '_'; 1651 }); 1652 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1653 Success = false; 1654 if (Diags) { 1655 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1656 Diags->Report(diag::note_drv_verify_prefix_spelling); 1657 } 1658 } 1659 } 1660 return Success; 1661 } 1662 1663 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1664 DiagnosticsEngine *Diags, 1665 bool DefaultDiagColor) { 1666 bool Success = true; 1667 1668 Opts.DiagnosticLogFile = 1669 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1670 if (Arg *A = 1671 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1672 Opts.DiagnosticSerializationFile = A->getValue(); 1673 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1674 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1675 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1676 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1677 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1678 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1679 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1680 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1681 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1682 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1683 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1684 1685 // Default behavior is to not to show note include stacks. 1686 Opts.ShowNoteIncludeStack = false; 1687 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1688 OPT_fno_diagnostics_show_note_include_stack)) 1689 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1690 Opts.ShowNoteIncludeStack = true; 1691 1692 StringRef ShowOverloads = 1693 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1694 if (ShowOverloads == "best") 1695 Opts.setShowOverloads(Ovl_Best); 1696 else if (ShowOverloads == "all") 1697 Opts.setShowOverloads(Ovl_All); 1698 else { 1699 Success = false; 1700 if (Diags) 1701 Diags->Report(diag::err_drv_invalid_value) 1702 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1703 << ShowOverloads; 1704 } 1705 1706 StringRef ShowCategory = 1707 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1708 if (ShowCategory == "none") 1709 Opts.ShowCategories = 0; 1710 else if (ShowCategory == "id") 1711 Opts.ShowCategories = 1; 1712 else if (ShowCategory == "name") 1713 Opts.ShowCategories = 2; 1714 else { 1715 Success = false; 1716 if (Diags) 1717 Diags->Report(diag::err_drv_invalid_value) 1718 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1719 << ShowCategory; 1720 } 1721 1722 StringRef Format = 1723 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1724 if (Format == "clang") 1725 Opts.setFormat(DiagnosticOptions::Clang); 1726 else if (Format == "msvc") 1727 Opts.setFormat(DiagnosticOptions::MSVC); 1728 else if (Format == "msvc-fallback") { 1729 Opts.setFormat(DiagnosticOptions::MSVC); 1730 Opts.CLFallbackMode = true; 1731 } else if (Format == "vi") 1732 Opts.setFormat(DiagnosticOptions::Vi); 1733 else { 1734 Success = false; 1735 if (Diags) 1736 Diags->Report(diag::err_drv_invalid_value) 1737 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1738 << Format; 1739 } 1740 1741 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1742 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1743 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1744 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1745 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1746 if (Args.hasArg(OPT_verify)) 1747 Opts.VerifyPrefixes.push_back("expected"); 1748 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1749 // then sort it to prepare for fast lookup using std::binary_search. 1750 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1751 Opts.VerifyDiagnostics = false; 1752 Success = false; 1753 } 1754 else 1755 llvm::sort(Opts.VerifyPrefixes); 1756 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1757 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1758 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1759 Diags, DiagMask); 1760 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1761 DiagMask = DiagnosticLevelMask::All; 1762 Opts.setVerifyIgnoreUnexpected(DiagMask); 1763 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1764 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1765 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1766 Opts.MacroBacktraceLimit = 1767 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1768 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1769 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1770 Args, OPT_ftemplate_backtrace_limit, 1771 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1772 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1773 Args, OPT_fconstexpr_backtrace_limit, 1774 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1775 Opts.SpellCheckingLimit = getLastArgIntValue( 1776 Args, OPT_fspell_checking_limit, 1777 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1778 Opts.SnippetLineLimit = getLastArgIntValue( 1779 Args, OPT_fcaret_diagnostics_max_lines, 1780 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1781 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1782 DiagnosticOptions::DefaultTabStop, Diags); 1783 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1784 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1785 if (Diags) 1786 Diags->Report(diag::warn_ignoring_ftabstop_value) 1787 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1788 } 1789 Opts.MessageLength = 1790 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1791 1792 Opts.UndefPrefixes = Args.getAllArgValues(OPT_Wundef_prefix_EQ); 1793 1794 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1795 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1796 1797 return Success; 1798 } 1799 1800 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1801 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1802 } 1803 1804 /// Parse the argument to the -ftest-module-file-extension 1805 /// command-line argument. 1806 /// 1807 /// \returns true on error, false on success. 1808 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1809 std::string &BlockName, 1810 unsigned &MajorVersion, 1811 unsigned &MinorVersion, 1812 bool &Hashed, 1813 std::string &UserInfo) { 1814 SmallVector<StringRef, 5> Args; 1815 Arg.split(Args, ':', 5); 1816 if (Args.size() < 5) 1817 return true; 1818 1819 BlockName = std::string(Args[0]); 1820 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1821 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1822 if (Args[3].getAsInteger(2, Hashed)) return true; 1823 if (Args.size() > 4) 1824 UserInfo = std::string(Args[4]); 1825 return false; 1826 } 1827 1828 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1829 DiagnosticsEngine &Diags, 1830 bool &IsHeaderFile) { 1831 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1832 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1833 switch (A->getOption().getID()) { 1834 default: 1835 llvm_unreachable("Invalid option in group!"); 1836 case OPT_ast_list: 1837 Opts.ProgramAction = frontend::ASTDeclList; break; 1838 case OPT_ast_dump_all_EQ: 1839 case OPT_ast_dump_EQ: { 1840 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1841 .CaseLower("default", ADOF_Default) 1842 .CaseLower("json", ADOF_JSON) 1843 .Default(std::numeric_limits<unsigned>::max()); 1844 1845 if (Val != std::numeric_limits<unsigned>::max()) 1846 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1847 else { 1848 Diags.Report(diag::err_drv_invalid_value) 1849 << A->getAsString(Args) << A->getValue(); 1850 Opts.ASTDumpFormat = ADOF_Default; 1851 } 1852 LLVM_FALLTHROUGH; 1853 } 1854 case OPT_ast_dump: 1855 case OPT_ast_dump_all: 1856 case OPT_ast_dump_lookups: 1857 case OPT_ast_dump_decl_types: 1858 Opts.ProgramAction = frontend::ASTDump; break; 1859 case OPT_ast_print: 1860 Opts.ProgramAction = frontend::ASTPrint; break; 1861 case OPT_ast_view: 1862 Opts.ProgramAction = frontend::ASTView; break; 1863 case OPT_compiler_options_dump: 1864 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1865 case OPT_dump_raw_tokens: 1866 Opts.ProgramAction = frontend::DumpRawTokens; break; 1867 case OPT_dump_tokens: 1868 Opts.ProgramAction = frontend::DumpTokens; break; 1869 case OPT_S: 1870 Opts.ProgramAction = frontend::EmitAssembly; break; 1871 case OPT_emit_llvm_bc: 1872 Opts.ProgramAction = frontend::EmitBC; break; 1873 case OPT_emit_html: 1874 Opts.ProgramAction = frontend::EmitHTML; break; 1875 case OPT_emit_llvm: 1876 Opts.ProgramAction = frontend::EmitLLVM; break; 1877 case OPT_emit_llvm_only: 1878 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1879 case OPT_emit_codegen_only: 1880 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1881 case OPT_emit_obj: 1882 Opts.ProgramAction = frontend::EmitObj; break; 1883 case OPT_fixit_EQ: 1884 Opts.FixItSuffix = A->getValue(); 1885 LLVM_FALLTHROUGH; 1886 case OPT_fixit: 1887 Opts.ProgramAction = frontend::FixIt; break; 1888 case OPT_emit_module: 1889 Opts.ProgramAction = frontend::GenerateModule; break; 1890 case OPT_emit_module_interface: 1891 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1892 case OPT_emit_header_module: 1893 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1894 case OPT_emit_pch: 1895 Opts.ProgramAction = frontend::GeneratePCH; break; 1896 case OPT_emit_interface_stubs: { 1897 StringRef ArgStr = 1898 Args.hasArg(OPT_interface_stub_version_EQ) 1899 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1900 : "experimental-ifs-v2"; 1901 if (ArgStr == "experimental-yaml-elf-v1" || 1902 ArgStr == "experimental-ifs-v1" || 1903 ArgStr == "experimental-tapi-elf-v1") { 1904 std::string ErrorMessage = 1905 "Invalid interface stub format: " + ArgStr.str() + 1906 " is deprecated."; 1907 Diags.Report(diag::err_drv_invalid_value) 1908 << "Must specify a valid interface stub format type, ie: " 1909 "-interface-stub-version=experimental-ifs-v2" 1910 << ErrorMessage; 1911 } else if (!ArgStr.startswith("experimental-ifs-")) { 1912 std::string ErrorMessage = 1913 "Invalid interface stub format: " + ArgStr.str() + "."; 1914 Diags.Report(diag::err_drv_invalid_value) 1915 << "Must specify a valid interface stub format type, ie: " 1916 "-interface-stub-version=experimental-ifs-v2" 1917 << ErrorMessage; 1918 } else { 1919 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1920 } 1921 break; 1922 } 1923 case OPT_init_only: 1924 Opts.ProgramAction = frontend::InitOnly; break; 1925 case OPT_fsyntax_only: 1926 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1927 case OPT_module_file_info: 1928 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1929 case OPT_verify_pch: 1930 Opts.ProgramAction = frontend::VerifyPCH; break; 1931 case OPT_print_preamble: 1932 Opts.ProgramAction = frontend::PrintPreamble; break; 1933 case OPT_E: 1934 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1935 case OPT_templight_dump: 1936 Opts.ProgramAction = frontend::TemplightDump; break; 1937 case OPT_rewrite_macros: 1938 Opts.ProgramAction = frontend::RewriteMacros; break; 1939 case OPT_rewrite_objc: 1940 Opts.ProgramAction = frontend::RewriteObjC; break; 1941 case OPT_rewrite_test: 1942 Opts.ProgramAction = frontend::RewriteTest; break; 1943 case OPT_analyze: 1944 Opts.ProgramAction = frontend::RunAnalysis; break; 1945 case OPT_migrate: 1946 Opts.ProgramAction = frontend::MigrateSource; break; 1947 case OPT_Eonly: 1948 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1949 case OPT_print_dependency_directives_minimized_source: 1950 Opts.ProgramAction = 1951 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1952 break; 1953 } 1954 } 1955 1956 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1957 Opts.Plugins.emplace_back(A->getValue(0)); 1958 Opts.ProgramAction = frontend::PluginAction; 1959 Opts.ActionName = A->getValue(); 1960 } 1961 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1962 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1963 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1964 1965 for (const std::string &Arg : 1966 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1967 std::string BlockName; 1968 unsigned MajorVersion; 1969 unsigned MinorVersion; 1970 bool Hashed; 1971 std::string UserInfo; 1972 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1973 MinorVersion, Hashed, UserInfo)) { 1974 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1975 1976 continue; 1977 } 1978 1979 // Add the testing module file extension. 1980 Opts.ModuleFileExtensions.push_back( 1981 std::make_shared<TestModuleFileExtension>( 1982 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1983 } 1984 1985 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1986 Opts.CodeCompletionAt = 1987 ParsedSourceLocation::FromString(A->getValue()); 1988 if (Opts.CodeCompletionAt.FileName.empty()) 1989 Diags.Report(diag::err_drv_invalid_value) 1990 << A->getAsString(Args) << A->getValue(); 1991 } 1992 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1993 1994 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1995 Opts.Plugins = Args.getAllArgValues(OPT_load); 1996 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1997 Opts.ShowHelp = Args.hasArg(OPT_help); 1998 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1999 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 2000 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 2001 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 2002 Opts.TimeTraceGranularity = getLastArgIntValue( 2003 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 2004 Opts.ShowVersion = Args.hasArg(OPT_version); 2005 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 2006 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 2007 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 2008 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 2009 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 2010 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 2011 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2012 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2013 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 2014 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 2015 Opts.ASTDumpDeclTypes = Args.hasArg(OPT_ast_dump_decl_types); 2016 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 2017 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 2018 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 2019 // Only the -fmodule-file=<file> form. 2020 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2021 StringRef Val = A->getValue(); 2022 if (Val.find('=') == StringRef::npos) 2023 Opts.ModuleFiles.push_back(std::string(Val)); 2024 } 2025 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 2026 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 2027 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 2028 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 2029 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 2030 2031 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2032 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2033 << "-emit-module"; 2034 2035 Opts.CodeCompleteOpts.IncludeMacros 2036 = Args.hasArg(OPT_code_completion_macros); 2037 Opts.CodeCompleteOpts.IncludeCodePatterns 2038 = Args.hasArg(OPT_code_completion_patterns); 2039 Opts.CodeCompleteOpts.IncludeGlobals 2040 = !Args.hasArg(OPT_no_code_completion_globals); 2041 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 2042 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 2043 Opts.CodeCompleteOpts.IncludeBriefComments 2044 = Args.hasArg(OPT_code_completion_brief_comments); 2045 Opts.CodeCompleteOpts.IncludeFixIts 2046 = Args.hasArg(OPT_code_completion_with_fixits); 2047 2048 Opts.OverrideRecordLayoutsFile = 2049 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 2050 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 2051 if (Args.hasArg(OPT_aux_target_cpu)) 2052 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2053 if (Args.hasArg(OPT_aux_target_feature)) 2054 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2055 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 2056 2057 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 2058 OPT_arcmt_modify, 2059 OPT_arcmt_migrate)) { 2060 switch (A->getOption().getID()) { 2061 default: 2062 llvm_unreachable("missed a case"); 2063 case OPT_arcmt_check: 2064 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 2065 break; 2066 case OPT_arcmt_modify: 2067 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 2068 break; 2069 case OPT_arcmt_migrate: 2070 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 2071 break; 2072 } 2073 } 2074 Opts.MTMigrateDir = 2075 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 2076 Opts.ARCMTMigrateReportOut = 2077 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 2078 Opts.ARCMTMigrateEmitARCErrors 2079 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 2080 2081 Opts.ObjCMTWhiteListPath = 2082 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 2083 2084 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2085 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2086 Diags.Report(diag::err_drv_argument_not_allowed_with) 2087 << "ARC migration" << "ObjC migration"; 2088 } 2089 2090 InputKind DashX(Language::Unknown); 2091 if (const Arg *A = Args.getLastArg(OPT_x)) { 2092 StringRef XValue = A->getValue(); 2093 2094 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2095 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2096 bool Preprocessed = XValue.consume_back("-cpp-output"); 2097 bool ModuleMap = XValue.consume_back("-module-map"); 2098 IsHeaderFile = !Preprocessed && !ModuleMap && 2099 XValue != "precompiled-header" && 2100 XValue.consume_back("-header"); 2101 2102 // Principal languages. 2103 DashX = llvm::StringSwitch<InputKind>(XValue) 2104 .Case("c", Language::C) 2105 .Case("cl", Language::OpenCL) 2106 .Case("cuda", Language::CUDA) 2107 .Case("hip", Language::HIP) 2108 .Case("c++", Language::CXX) 2109 .Case("objective-c", Language::ObjC) 2110 .Case("objective-c++", Language::ObjCXX) 2111 .Case("renderscript", Language::RenderScript) 2112 .Default(Language::Unknown); 2113 2114 // "objc[++]-cpp-output" is an acceptable synonym for 2115 // "objective-c[++]-cpp-output". 2116 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2117 DashX = llvm::StringSwitch<InputKind>(XValue) 2118 .Case("objc", Language::ObjC) 2119 .Case("objc++", Language::ObjCXX) 2120 .Default(Language::Unknown); 2121 2122 // Some special cases cannot be combined with suffixes. 2123 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2124 DashX = llvm::StringSwitch<InputKind>(XValue) 2125 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2126 .Case("assembler-with-cpp", Language::Asm) 2127 .Cases("ast", "pcm", "precompiled-header", 2128 InputKind(Language::Unknown, InputKind::Precompiled)) 2129 .Case("ir", Language::LLVM_IR) 2130 .Default(Language::Unknown); 2131 2132 if (DashX.isUnknown()) 2133 Diags.Report(diag::err_drv_invalid_value) 2134 << A->getAsString(Args) << A->getValue(); 2135 2136 if (Preprocessed) 2137 DashX = DashX.getPreprocessed(); 2138 if (ModuleMap) 2139 DashX = DashX.withFormat(InputKind::ModuleMap); 2140 } 2141 2142 // '-' is the default input if none is given. 2143 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2144 Opts.Inputs.clear(); 2145 if (Inputs.empty()) 2146 Inputs.push_back("-"); 2147 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2148 InputKind IK = DashX; 2149 if (IK.isUnknown()) { 2150 IK = FrontendOptions::getInputKindForExtension( 2151 StringRef(Inputs[i]).rsplit('.').second); 2152 // FIXME: Warn on this? 2153 if (IK.isUnknown()) 2154 IK = Language::C; 2155 // FIXME: Remove this hack. 2156 if (i == 0) 2157 DashX = IK; 2158 } 2159 2160 bool IsSystem = false; 2161 2162 // The -emit-module action implicitly takes a module map. 2163 if (Opts.ProgramAction == frontend::GenerateModule && 2164 IK.getFormat() == InputKind::Source) { 2165 IK = IK.withFormat(InputKind::ModuleMap); 2166 IsSystem = Opts.IsSystemModule; 2167 } 2168 2169 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2170 } 2171 2172 return DashX; 2173 } 2174 2175 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2176 void *MainAddr) { 2177 std::string ClangExecutable = 2178 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2179 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2180 } 2181 2182 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2183 const std::string &WorkingDir) { 2184 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2185 Opts.Verbose = Args.hasArg(OPT_v); 2186 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2187 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2188 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2189 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2190 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2191 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2192 2193 // Canonicalize -fmodules-cache-path before storing it. 2194 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2195 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2196 if (WorkingDir.empty()) 2197 llvm::sys::fs::make_absolute(P); 2198 else 2199 llvm::sys::fs::make_absolute(WorkingDir, P); 2200 } 2201 llvm::sys::path::remove_dots(P); 2202 Opts.ModuleCachePath = std::string(P.str()); 2203 2204 Opts.ModuleUserBuildPath = 2205 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2206 // Only the -fmodule-file=<name>=<file> form. 2207 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2208 StringRef Val = A->getValue(); 2209 if (Val.find('=') != StringRef::npos){ 2210 auto Split = Val.split('='); 2211 Opts.PrebuiltModuleFiles.insert( 2212 {std::string(Split.first), std::string(Split.second)}); 2213 } 2214 } 2215 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2216 Opts.AddPrebuiltModulePath(A->getValue()); 2217 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2218 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2219 Opts.ModulesValidateDiagnosticOptions = 2220 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2221 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2222 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2223 Opts.EnablePrebuiltImplicitModules = 2224 Args.hasArg(OPT_fprebuilt_implicit_modules); 2225 Opts.ModuleCachePruneInterval = 2226 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2227 Opts.ModuleCachePruneAfter = 2228 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2229 Opts.ModulesValidateOncePerBuildSession = 2230 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2231 Opts.BuildSessionTimestamp = 2232 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2233 Opts.ModulesValidateSystemHeaders = 2234 Args.hasArg(OPT_fmodules_validate_system_headers); 2235 Opts.ValidateASTInputFilesContent = 2236 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2237 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2238 Opts.ModuleFormat = A->getValue(); 2239 2240 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2241 StringRef MacroDef = A->getValue(); 2242 Opts.ModulesIgnoreMacros.insert( 2243 llvm::CachedHashString(MacroDef.split('=').first)); 2244 } 2245 2246 // Add -I..., -F..., and -index-header-map options in order. 2247 bool IsIndexHeaderMap = false; 2248 bool IsSysrootSpecified = 2249 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2250 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2251 if (A->getOption().matches(OPT_index_header_map)) { 2252 // -index-header-map applies to the next -I or -F. 2253 IsIndexHeaderMap = true; 2254 continue; 2255 } 2256 2257 frontend::IncludeDirGroup Group = 2258 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2259 2260 bool IsFramework = A->getOption().matches(OPT_F); 2261 std::string Path = A->getValue(); 2262 2263 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2264 SmallString<32> Buffer; 2265 llvm::sys::path::append(Buffer, Opts.Sysroot, 2266 llvm::StringRef(A->getValue()).substr(1)); 2267 Path = std::string(Buffer.str()); 2268 } 2269 2270 Opts.AddPath(Path, Group, IsFramework, 2271 /*IgnoreSysroot*/ true); 2272 IsIndexHeaderMap = false; 2273 } 2274 2275 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2276 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2277 for (const auto *A : 2278 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2279 if (A->getOption().matches(OPT_iprefix)) 2280 Prefix = A->getValue(); 2281 else if (A->getOption().matches(OPT_iwithprefix)) 2282 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2283 else 2284 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2285 } 2286 2287 for (const auto *A : Args.filtered(OPT_idirafter)) 2288 Opts.AddPath(A->getValue(), frontend::After, false, true); 2289 for (const auto *A : Args.filtered(OPT_iquote)) 2290 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2291 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2292 Opts.AddPath(A->getValue(), frontend::System, false, 2293 !A->getOption().matches(OPT_iwithsysroot)); 2294 for (const auto *A : Args.filtered(OPT_iframework)) 2295 Opts.AddPath(A->getValue(), frontend::System, true, true); 2296 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2297 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2298 /*IgnoreSysRoot=*/false); 2299 2300 // Add the paths for the various language specific isystem flags. 2301 for (const auto *A : Args.filtered(OPT_c_isystem)) 2302 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2303 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2304 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2305 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2306 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2307 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2308 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2309 2310 // Add the internal paths from a driver that detects standard include paths. 2311 for (const auto *A : 2312 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2313 frontend::IncludeDirGroup Group = frontend::System; 2314 if (A->getOption().matches(OPT_internal_externc_isystem)) 2315 Group = frontend::ExternCSystem; 2316 Opts.AddPath(A->getValue(), Group, false, true); 2317 } 2318 2319 // Add the path prefixes which are implicitly treated as being system headers. 2320 for (const auto *A : 2321 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2322 Opts.AddSystemHeaderPrefix( 2323 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2324 2325 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2326 Opts.AddVFSOverlayFile(A->getValue()); 2327 } 2328 2329 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2330 const llvm::Triple &T, 2331 PreprocessorOptions &PPOpts, 2332 LangStandard::Kind LangStd) { 2333 // Set some properties which depend solely on the input kind; it would be nice 2334 // to move these to the language standard, and have the driver resolve the 2335 // input kind + language standard. 2336 // 2337 // FIXME: Perhaps a better model would be for a single source file to have 2338 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2339 // simultaneously active? 2340 if (IK.getLanguage() == Language::Asm) { 2341 Opts.AsmPreprocessor = 1; 2342 } else if (IK.isObjectiveC()) { 2343 Opts.ObjC = 1; 2344 } 2345 2346 if (LangStd == LangStandard::lang_unspecified) { 2347 // Based on the base language, pick one. 2348 switch (IK.getLanguage()) { 2349 case Language::Unknown: 2350 case Language::LLVM_IR: 2351 llvm_unreachable("Invalid input kind!"); 2352 case Language::OpenCL: 2353 LangStd = LangStandard::lang_opencl10; 2354 break; 2355 case Language::CUDA: 2356 LangStd = LangStandard::lang_cuda; 2357 break; 2358 case Language::Asm: 2359 case Language::C: 2360 #if defined(CLANG_DEFAULT_STD_C) 2361 LangStd = CLANG_DEFAULT_STD_C; 2362 #else 2363 // The PS4 uses C99 as the default C standard. 2364 if (T.isPS4()) 2365 LangStd = LangStandard::lang_gnu99; 2366 else 2367 LangStd = LangStandard::lang_gnu17; 2368 #endif 2369 break; 2370 case Language::ObjC: 2371 #if defined(CLANG_DEFAULT_STD_C) 2372 LangStd = CLANG_DEFAULT_STD_C; 2373 #else 2374 LangStd = LangStandard::lang_gnu11; 2375 #endif 2376 break; 2377 case Language::CXX: 2378 case Language::ObjCXX: 2379 #if defined(CLANG_DEFAULT_STD_CXX) 2380 LangStd = CLANG_DEFAULT_STD_CXX; 2381 #else 2382 LangStd = LangStandard::lang_gnucxx14; 2383 #endif 2384 break; 2385 case Language::RenderScript: 2386 LangStd = LangStandard::lang_c99; 2387 break; 2388 case Language::HIP: 2389 LangStd = LangStandard::lang_hip; 2390 break; 2391 } 2392 } 2393 2394 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2395 Opts.LineComment = Std.hasLineComments(); 2396 Opts.C99 = Std.isC99(); 2397 Opts.C11 = Std.isC11(); 2398 Opts.C17 = Std.isC17(); 2399 Opts.C2x = Std.isC2x(); 2400 Opts.CPlusPlus = Std.isCPlusPlus(); 2401 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2402 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2403 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2404 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 2405 Opts.Digraphs = Std.hasDigraphs(); 2406 Opts.GNUMode = Std.isGNUMode(); 2407 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2408 Opts.GNUCVersion = 0; 2409 Opts.HexFloats = Std.hasHexFloats(); 2410 Opts.ImplicitInt = Std.hasImplicitInt(); 2411 2412 // Set OpenCL Version. 2413 Opts.OpenCL = Std.isOpenCL(); 2414 if (LangStd == LangStandard::lang_opencl10) 2415 Opts.OpenCLVersion = 100; 2416 else if (LangStd == LangStandard::lang_opencl11) 2417 Opts.OpenCLVersion = 110; 2418 else if (LangStd == LangStandard::lang_opencl12) 2419 Opts.OpenCLVersion = 120; 2420 else if (LangStd == LangStandard::lang_opencl20) 2421 Opts.OpenCLVersion = 200; 2422 else if (LangStd == LangStandard::lang_opencl30) 2423 Opts.OpenCLVersion = 300; 2424 else if (LangStd == LangStandard::lang_openclcpp) 2425 Opts.OpenCLCPlusPlusVersion = 100; 2426 2427 // OpenCL has some additional defaults. 2428 if (Opts.OpenCL) { 2429 Opts.AltiVec = 0; 2430 Opts.ZVector = 0; 2431 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2432 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2433 Opts.NativeHalfType = 1; 2434 Opts.NativeHalfArgsAndReturns = 1; 2435 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2436 2437 // Include default header file for OpenCL. 2438 if (Opts.IncludeDefaultHeader) { 2439 if (Opts.DeclareOpenCLBuiltins) { 2440 // Only include base header file for builtin types and constants. 2441 PPOpts.Includes.push_back("opencl-c-base.h"); 2442 } else { 2443 PPOpts.Includes.push_back("opencl-c.h"); 2444 } 2445 } 2446 } 2447 2448 Opts.HIP = IK.getLanguage() == Language::HIP; 2449 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2450 if (Opts.CUDA) 2451 // Set default FP_CONTRACT to FAST. 2452 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2453 2454 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2455 if (Opts.RenderScript) { 2456 Opts.NativeHalfType = 1; 2457 Opts.NativeHalfArgsAndReturns = 1; 2458 } 2459 2460 // OpenCL and C++ both have bool, true, false keywords. 2461 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2462 2463 // OpenCL has half keyword 2464 Opts.Half = Opts.OpenCL; 2465 2466 // C++ has wchar_t keyword. 2467 Opts.WChar = Opts.CPlusPlus; 2468 2469 Opts.GNUKeywords = Opts.GNUMode; 2470 Opts.CXXOperatorNames = Opts.CPlusPlus; 2471 2472 Opts.AlignedAllocation = Opts.CPlusPlus17; 2473 2474 Opts.DollarIdents = !Opts.AsmPreprocessor; 2475 2476 // Enable [[]] attributes in C++11 and C2x by default. 2477 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2478 } 2479 2480 /// Attempt to parse a visibility value out of the given argument. 2481 static Visibility parseVisibility(Arg *arg, ArgList &args, 2482 DiagnosticsEngine &diags) { 2483 StringRef value = arg->getValue(); 2484 if (value == "default") { 2485 return DefaultVisibility; 2486 } else if (value == "hidden" || value == "internal") { 2487 return HiddenVisibility; 2488 } else if (value == "protected") { 2489 // FIXME: diagnose if target does not support protected visibility 2490 return ProtectedVisibility; 2491 } 2492 2493 diags.Report(diag::err_drv_invalid_value) 2494 << arg->getAsString(args) << value; 2495 return DefaultVisibility; 2496 } 2497 2498 /// Check if input file kind and language standard are compatible. 2499 static bool IsInputCompatibleWithStandard(InputKind IK, 2500 const LangStandard &S) { 2501 switch (IK.getLanguage()) { 2502 case Language::Unknown: 2503 case Language::LLVM_IR: 2504 llvm_unreachable("should not parse language flags for this input"); 2505 2506 case Language::C: 2507 case Language::ObjC: 2508 case Language::RenderScript: 2509 return S.getLanguage() == Language::C; 2510 2511 case Language::OpenCL: 2512 return S.getLanguage() == Language::OpenCL; 2513 2514 case Language::CXX: 2515 case Language::ObjCXX: 2516 return S.getLanguage() == Language::CXX; 2517 2518 case Language::CUDA: 2519 // FIXME: What -std= values should be permitted for CUDA compilations? 2520 return S.getLanguage() == Language::CUDA || 2521 S.getLanguage() == Language::CXX; 2522 2523 case Language::HIP: 2524 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2525 2526 case Language::Asm: 2527 // Accept (and ignore) all -std= values. 2528 // FIXME: The -std= value is not ignored; it affects the tokenization 2529 // and preprocessing rules if we're preprocessing this asm input. 2530 return true; 2531 } 2532 2533 llvm_unreachable("unexpected input language"); 2534 } 2535 2536 /// Get language name for given input kind. 2537 static const StringRef GetInputKindName(InputKind IK) { 2538 switch (IK.getLanguage()) { 2539 case Language::C: 2540 return "C"; 2541 case Language::ObjC: 2542 return "Objective-C"; 2543 case Language::CXX: 2544 return "C++"; 2545 case Language::ObjCXX: 2546 return "Objective-C++"; 2547 case Language::OpenCL: 2548 return "OpenCL"; 2549 case Language::CUDA: 2550 return "CUDA"; 2551 case Language::RenderScript: 2552 return "RenderScript"; 2553 case Language::HIP: 2554 return "HIP"; 2555 2556 case Language::Asm: 2557 return "Asm"; 2558 case Language::LLVM_IR: 2559 return "LLVM IR"; 2560 2561 case Language::Unknown: 2562 break; 2563 } 2564 llvm_unreachable("unknown input language"); 2565 } 2566 2567 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2568 const TargetOptions &TargetOpts, 2569 PreprocessorOptions &PPOpts, 2570 DiagnosticsEngine &Diags) { 2571 // FIXME: Cleanup per-file based stuff. 2572 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2573 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2574 LangStd = LangStandard::getLangKind(A->getValue()); 2575 if (LangStd == LangStandard::lang_unspecified) { 2576 Diags.Report(diag::err_drv_invalid_value) 2577 << A->getAsString(Args) << A->getValue(); 2578 // Report supported standards with short description. 2579 for (unsigned KindValue = 0; 2580 KindValue != LangStandard::lang_unspecified; 2581 ++KindValue) { 2582 const LangStandard &Std = LangStandard::getLangStandardForKind( 2583 static_cast<LangStandard::Kind>(KindValue)); 2584 if (IsInputCompatibleWithStandard(IK, Std)) { 2585 auto Diag = Diags.Report(diag::note_drv_use_standard); 2586 Diag << Std.getName() << Std.getDescription(); 2587 unsigned NumAliases = 0; 2588 #define LANGSTANDARD(id, name, lang, desc, features) 2589 #define LANGSTANDARD_ALIAS(id, alias) \ 2590 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2591 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2592 #include "clang/Basic/LangStandards.def" 2593 Diag << NumAliases; 2594 #define LANGSTANDARD(id, name, lang, desc, features) 2595 #define LANGSTANDARD_ALIAS(id, alias) \ 2596 if (KindValue == LangStandard::lang_##id) Diag << alias; 2597 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2598 #include "clang/Basic/LangStandards.def" 2599 } 2600 } 2601 } else { 2602 // Valid standard, check to make sure language and standard are 2603 // compatible. 2604 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2605 if (!IsInputCompatibleWithStandard(IK, Std)) { 2606 Diags.Report(diag::err_drv_argument_not_allowed_with) 2607 << A->getAsString(Args) << GetInputKindName(IK); 2608 } 2609 } 2610 } 2611 2612 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2613 Opts.DllExportInlines = false; 2614 2615 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2616 StringRef Name = A->getValue(); 2617 if (Name == "full" || Name == "branch") { 2618 Opts.CFProtectionBranch = 1; 2619 } 2620 } 2621 // -cl-std only applies for OpenCL language standards. 2622 // Override the -std option in this case. 2623 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2624 LangStandard::Kind OpenCLLangStd 2625 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2626 .Cases("cl", "CL", LangStandard::lang_opencl10) 2627 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 2628 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2629 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2630 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2631 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 2632 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2633 .Default(LangStandard::lang_unspecified); 2634 2635 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2636 Diags.Report(diag::err_drv_invalid_value) 2637 << A->getAsString(Args) << A->getValue(); 2638 } 2639 else 2640 LangStd = OpenCLLangStd; 2641 } 2642 2643 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2644 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2645 if (Opts.SYCL) { 2646 // -sycl-std applies to any SYCL source, not only those containing kernels, 2647 // but also those using the SYCL API 2648 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2649 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2650 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2651 .Default(0U); 2652 2653 if (Opts.SYCLVersion == 0U) { 2654 // User has passed an invalid value to the flag, this is an error 2655 Diags.Report(diag::err_drv_invalid_value) 2656 << A->getAsString(Args) << A->getValue(); 2657 } 2658 } 2659 } 2660 2661 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2662 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2663 2664 llvm::Triple T(TargetOpts.Triple); 2665 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2666 2667 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2668 // This option should be deprecated for CL > 1.0 because 2669 // this option was added for compatibility with OpenCL 1.0. 2670 if (Args.getLastArg(OPT_cl_strict_aliasing) 2671 && Opts.OpenCLVersion > 100) { 2672 Diags.Report(diag::warn_option_invalid_ocl_version) 2673 << Opts.getOpenCLVersionTuple().getAsString() 2674 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2675 } 2676 2677 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2678 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2679 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2680 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2681 // name, as it doesn't seem a useful distinction. 2682 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2683 Opts.GNUKeywords); 2684 2685 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2686 2687 if (Args.hasArg(OPT_fno_operator_names)) 2688 Opts.CXXOperatorNames = 0; 2689 2690 if (Args.hasArg(OPT_fcuda_is_device)) 2691 Opts.CUDAIsDevice = 1; 2692 2693 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2694 Opts.CUDAAllowVariadicFunctions = 1; 2695 2696 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2697 Opts.CUDAHostDeviceConstexpr = 0; 2698 2699 if (Args.hasArg(OPT_fgpu_defer_diag)) 2700 Opts.GPUDeferDiag = 1; 2701 2702 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2703 Opts.CUDADeviceApproxTranscendentals = 1; 2704 2705 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2706 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2707 if (Opts.HIP) 2708 Opts.GPUAllowDeviceInit = 1; 2709 else 2710 Diags.Report(diag::warn_ignored_hip_only_option) 2711 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2712 } 2713 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2714 if (Opts.HIP) 2715 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2716 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2717 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2718 Diags.Report(diag::warn_ignored_hip_only_option) 2719 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2720 2721 if (Opts.ObjC) { 2722 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2723 StringRef value = arg->getValue(); 2724 if (Opts.ObjCRuntime.tryParse(value)) 2725 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2726 } 2727 2728 if (Args.hasArg(OPT_fobjc_gc_only)) 2729 Opts.setGC(LangOptions::GCOnly); 2730 else if (Args.hasArg(OPT_fobjc_gc)) 2731 Opts.setGC(LangOptions::HybridGC); 2732 else if (Args.hasArg(OPT_fobjc_arc)) { 2733 Opts.ObjCAutoRefCount = 1; 2734 if (!Opts.ObjCRuntime.allowsARC()) 2735 Diags.Report(diag::err_arc_unsupported_on_runtime); 2736 } 2737 2738 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2739 // whether the feature is actually enabled. This is predominantly 2740 // determined by -fobjc-runtime, but we allow it to be overridden 2741 // from the command line for testing purposes. 2742 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2743 Opts.ObjCWeakRuntime = 1; 2744 else 2745 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2746 2747 // ObjCWeak determines whether __weak is actually enabled. 2748 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2749 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2750 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2751 assert(!Opts.ObjCWeak); 2752 } else if (Opts.getGC() != LangOptions::NonGC) { 2753 Diags.Report(diag::err_objc_weak_with_gc); 2754 } else if (!Opts.ObjCWeakRuntime) { 2755 Diags.Report(diag::err_objc_weak_unsupported); 2756 } else { 2757 Opts.ObjCWeak = 1; 2758 } 2759 } else if (Opts.ObjCAutoRefCount) { 2760 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2761 } 2762 2763 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2764 Opts.ObjCInferRelatedResultType = 0; 2765 2766 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2767 Opts.ObjCSubscriptingLegacyRuntime = 2768 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2769 } 2770 2771 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2772 // Check that the version has 1 to 3 components and the minor and patch 2773 // versions fit in two decimal digits. 2774 VersionTuple GNUCVer; 2775 bool Invalid = GNUCVer.tryParse(A->getValue()); 2776 unsigned Major = GNUCVer.getMajor(); 2777 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2778 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2779 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2780 Diags.Report(diag::err_drv_invalid_value) 2781 << A->getAsString(Args) << A->getValue(); 2782 } 2783 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2784 } 2785 2786 if (Args.hasArg(OPT_fgnu89_inline)) { 2787 if (Opts.CPlusPlus) 2788 Diags.Report(diag::err_drv_argument_not_allowed_with) 2789 << "-fgnu89-inline" << GetInputKindName(IK); 2790 else 2791 Opts.GNUInline = 1; 2792 } 2793 2794 if (Args.hasArg(OPT_fapple_kext)) { 2795 if (!Opts.CPlusPlus) 2796 Diags.Report(diag::warn_c_kext); 2797 else 2798 Opts.AppleKext = 1; 2799 } 2800 2801 if (Args.hasArg(OPT_print_ivar_layout)) 2802 Opts.ObjCGCBitmapPrint = 1; 2803 2804 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2805 Opts.NoConstantCFStrings = 1; 2806 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2807 Opts.CFRuntime = 2808 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2809 .Cases("unspecified", "standalone", "objc", 2810 LangOptions::CoreFoundationABI::ObjectiveC) 2811 .Cases("swift", "swift-5.0", 2812 LangOptions::CoreFoundationABI::Swift5_0) 2813 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2814 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2815 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2816 2817 if (Args.hasArg(OPT_fzvector)) 2818 Opts.ZVector = 1; 2819 2820 if (Args.hasArg(OPT_pthread)) 2821 Opts.POSIXThreads = 1; 2822 2823 // The value-visibility mode defaults to "default". 2824 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2825 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2826 } else { 2827 Opts.setValueVisibilityMode(DefaultVisibility); 2828 } 2829 2830 // The type-visibility mode defaults to the value-visibility mode. 2831 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2832 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2833 } else { 2834 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2835 } 2836 2837 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2838 Opts.InlineVisibilityHidden = 1; 2839 2840 if (Args.hasArg(OPT_fvisibility_inlines_hidden_static_local_var)) 2841 Opts.VisibilityInlinesHiddenStaticLocalVar = 1; 2842 2843 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2844 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2845 2846 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2847 Opts.SetVisibilityForExternDecls = 1; 2848 2849 if (Args.hasArg(OPT_fvisibility_from_dllstorageclass)) { 2850 Opts.VisibilityFromDLLStorageClass = 1; 2851 2852 // Translate dllexport defintions to default visibility, by default. 2853 if (Arg *O = Args.getLastArg(OPT_fvisibility_dllexport_EQ)) 2854 Opts.setDLLExportVisibility(parseVisibility(O, Args, Diags)); 2855 else 2856 Opts.setDLLExportVisibility(DefaultVisibility); 2857 2858 // Translate defintions without an explict DLL storage class to hidden 2859 // visibility, by default. 2860 if (Arg *O = Args.getLastArg(OPT_fvisibility_nodllstorageclass_EQ)) 2861 Opts.setNoDLLStorageClassVisibility(parseVisibility(O, Args, Diags)); 2862 else 2863 Opts.setNoDLLStorageClassVisibility(HiddenVisibility); 2864 2865 // Translate dllimport external declarations to default visibility, by 2866 // default. 2867 if (Arg *O = Args.getLastArg(OPT_fvisibility_externs_dllimport_EQ)) 2868 Opts.setExternDeclDLLImportVisibility(parseVisibility(O, Args, Diags)); 2869 else 2870 Opts.setExternDeclDLLImportVisibility(DefaultVisibility); 2871 2872 // Translate external declarations without an explicit DLL storage class 2873 // to hidden visibility, by default. 2874 if (Arg *O = Args.getLastArg(OPT_fvisibility_externs_nodllstorageclass_EQ)) 2875 Opts.setExternDeclNoDLLStorageClassVisibility( 2876 parseVisibility(O, Args, Diags)); 2877 else 2878 Opts.setExternDeclNoDLLStorageClassVisibility(HiddenVisibility); 2879 } 2880 2881 if (Args.hasArg(OPT_ftrapv)) { 2882 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2883 // Set the handler, if one is specified. 2884 Opts.OverflowHandler = 2885 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2886 } 2887 else if (Args.hasArg(OPT_fwrapv)) 2888 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2889 2890 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2891 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2892 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2893 Opts.MSCompatibilityVersion = 0; 2894 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2895 VersionTuple VT; 2896 if (VT.tryParse(A->getValue())) 2897 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2898 << A->getValue(); 2899 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2900 VT.getMinor().getValueOr(0) * 100000 + 2901 VT.getSubminor().getValueOr(0); 2902 } 2903 2904 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2905 // is specified, or -std is set to a conforming mode. 2906 // Trigraphs are disabled by default in c++1z onwards. 2907 // For z/OS, trigraphs are enabled by default (without regard to the above). 2908 Opts.Trigraphs = 2909 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 2910 Opts.Trigraphs = 2911 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2912 2913 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2914 OPT_fno_dollars_in_identifiers, 2915 Opts.DollarIdents); 2916 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2917 Opts.setVtorDispMode( 2918 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2919 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2920 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2921 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2922 Opts.ConstStrings); 2923 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2924 using LaxKind = LangOptions::LaxVectorConversionKind; 2925 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2926 .Case("none", LaxKind::None) 2927 .Case("integer", LaxKind::Integer) 2928 .Case("all", LaxKind::All) 2929 .Default(llvm::None)) 2930 Opts.setLaxVectorConversions(*Kind); 2931 else 2932 Diags.Report(diag::err_drv_invalid_value) 2933 << A->getAsString(Args) << A->getValue(); 2934 } 2935 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2936 Opts.ThreadsafeStatics = 0; 2937 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2938 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2939 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2940 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2941 2942 // -ffixed-point 2943 Opts.FixedPoint = 2944 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2945 !Opts.CPlusPlus; 2946 Opts.PaddingOnUnsignedFixedPoint = 2947 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2948 OPT_fno_padding_on_unsigned_fixed_point, 2949 /*Default=*/false) && 2950 Opts.FixedPoint; 2951 2952 // Handle exception personalities 2953 Arg *A = Args.getLastArg( 2954 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2955 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2956 if (A) { 2957 const Option &Opt = A->getOption(); 2958 llvm::Triple T(TargetOpts.Triple); 2959 if (T.isWindowsMSVCEnvironment()) 2960 Diags.Report(diag::err_fe_invalid_exception_model) 2961 << Opt.getName() << T.str(); 2962 2963 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2964 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2965 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2966 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2967 } 2968 2969 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2970 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2971 2972 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2973 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2974 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2975 && Opts.OpenCLVersion == 200); 2976 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2977 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2978 2979 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2980 Opts.SYCLIsDevice || 2981 Args.hasArg(OPT_fconvergent_functions); 2982 2983 Opts.DoubleSquareBracketAttributes = 2984 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2985 OPT_fno_double_square_bracket_attributes, 2986 Opts.DoubleSquareBracketAttributes); 2987 2988 Opts.CPlusPlusModules = Opts.CPlusPlus20; 2989 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2990 Opts.Modules = 2991 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2992 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2993 Opts.ModulesDeclUse = 2994 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2995 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2996 // enter a different module (eg, when building a header unit). 2997 Opts.ModulesLocalVisibility = 2998 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2999 Opts.CPlusPlusModules; 3000 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 3001 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 3002 Opts.ModulesSearchAll = Opts.Modules && 3003 !Args.hasArg(OPT_fno_modules_search_all) && 3004 Args.hasArg(OPT_fmodules_search_all); 3005 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 3006 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 3007 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 3008 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 3009 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 3010 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 3011 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 3012 .Case("char", 1) 3013 .Case("short", 2) 3014 .Case("int", 4) 3015 .Default(0); 3016 if (Opts.WCharSize == 0) 3017 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 3018 } 3019 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 3020 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 3021 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 3022 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3023 if (!Opts.NoBuiltin) 3024 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3025 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 3026 Opts.RelaxedTemplateTemplateArgs = 3027 Args.hasArg(OPT_frelaxed_template_template_args); 3028 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 3029 Opts.AlignedAllocation = 3030 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 3031 Opts.AlignedAllocation); 3032 Opts.AlignedAllocationUnavailable = 3033 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 3034 Opts.NewAlignOverride = 3035 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 3036 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 3037 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 3038 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 3039 << A->getValue(); 3040 Opts.NewAlignOverride = 0; 3041 } 3042 Opts.ConceptSatisfactionCaching = 3043 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 3044 if (Args.hasArg(OPT_fconcepts_ts)) 3045 Diags.Report(diag::warn_fe_concepts_ts_flag); 3046 // Recovery AST still heavily relies on dependent-type machinery. 3047 Opts.RecoveryAST = 3048 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, Opts.CPlusPlus); 3049 Opts.RecoveryASTType = Args.hasFlag( 3050 OPT_frecovery_ast_type, OPT_fno_recovery_ast_type, Opts.CPlusPlus); 3051 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 3052 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 3053 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 3054 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 3055 Opts.InstantiationDepth = 3056 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 3057 Opts.ArrowDepth = 3058 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 3059 Opts.ConstexprCallDepth = 3060 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 3061 Opts.ConstexprStepLimit = 3062 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 3063 Opts.EnableNewConstInterp = 3064 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 3065 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 3066 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 3067 Opts.NumLargeByValueCopy = 3068 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 3069 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 3070 Opts.ObjCConstantStringClass = 3071 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 3072 Opts.ObjCDefaultSynthProperties = 3073 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 3074 Opts.EncodeExtendedBlockSig = 3075 Args.hasArg(OPT_fencode_extended_block_signature); 3076 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 3077 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 3078 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 3079 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 3080 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 3081 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3082 ? 128 3083 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3084 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 3085 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3086 Opts.ROPI = Args.hasArg(OPT_fropi); 3087 Opts.RWPI = Args.hasArg(OPT_frwpi); 3088 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3089 Opts.Static = Args.hasArg(OPT_static_define); 3090 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 3091 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 3092 || Args.hasArg(OPT_fdump_record_layouts); 3093 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 3094 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 3095 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 3096 if (Opts.FastRelaxedMath) 3097 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3098 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 3099 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 3100 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 3101 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 3102 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 3103 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 3104 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 3105 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 3106 Opts.CurrentModule = Opts.ModuleName; 3107 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 3108 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 3109 llvm::sort(Opts.ModuleFeatures); 3110 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 3111 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 3112 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 3113 // is enabled. 3114 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 3115 | Opts.NativeHalfArgsAndReturns; 3116 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 3117 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 3118 3119 Opts.ArmSveVectorBits = 3120 getLastArgIntValue(Args, options::OPT_msve_vector_bits_EQ, 0, Diags); 3121 3122 // __declspec is enabled by default for the PS4 by the driver, and also 3123 // enabled for Microsoft Extensions or Borland Extensions, here. 3124 // 3125 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 3126 // CUDA extension. However, it is required for supporting 3127 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 3128 // been rewritten in terms of something more generic, remove the Opts.CUDA 3129 // term here. 3130 Opts.DeclSpecKeyword = 3131 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 3132 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 3133 3134 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 3135 switch (llvm::StringSwitch<unsigned>(A->getValue()) 3136 .Case("target", LangOptions::ASMM_Target) 3137 .Case("no", LangOptions::ASMM_Off) 3138 .Case("yes", LangOptions::ASMM_On) 3139 .Default(255)) { 3140 default: 3141 Diags.Report(diag::err_drv_invalid_value) 3142 << "-faddress-space-map-mangling=" << A->getValue(); 3143 break; 3144 case LangOptions::ASMM_Target: 3145 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 3146 break; 3147 case LangOptions::ASMM_On: 3148 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 3149 break; 3150 case LangOptions::ASMM_Off: 3151 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 3152 break; 3153 } 3154 } 3155 3156 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 3157 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 3158 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 3159 A->getValue()) 3160 .Case("single", 3161 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3162 .Case("multiple", 3163 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3164 .Case("virtual", 3165 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3166 .Default(LangOptions::PPTMK_BestCase); 3167 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3168 Diags.Report(diag::err_drv_invalid_value) 3169 << "-fms-memptr-rep=" << A->getValue(); 3170 3171 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3172 } 3173 3174 // Check for MS default calling conventions being specified. 3175 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3176 LangOptions::DefaultCallingConvention DefaultCC = 3177 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3178 .Case("cdecl", LangOptions::DCC_CDecl) 3179 .Case("fastcall", LangOptions::DCC_FastCall) 3180 .Case("stdcall", LangOptions::DCC_StdCall) 3181 .Case("vectorcall", LangOptions::DCC_VectorCall) 3182 .Case("regcall", LangOptions::DCC_RegCall) 3183 .Default(LangOptions::DCC_None); 3184 if (DefaultCC == LangOptions::DCC_None) 3185 Diags.Report(diag::err_drv_invalid_value) 3186 << "-fdefault-calling-conv=" << A->getValue(); 3187 3188 llvm::Triple T(TargetOpts.Triple); 3189 llvm::Triple::ArchType Arch = T.getArch(); 3190 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3191 DefaultCC == LangOptions::DCC_StdCall) && 3192 Arch != llvm::Triple::x86; 3193 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3194 DefaultCC == LangOptions::DCC_RegCall) && 3195 !T.isX86(); 3196 if (emitError) 3197 Diags.Report(diag::err_drv_argument_not_allowed_with) 3198 << A->getSpelling() << T.getTriple(); 3199 else 3200 Opts.setDefaultCallingConv(DefaultCC); 3201 } 3202 3203 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3204 // An explicit -fno-semantic-interposition infers dso_local. 3205 Opts.ExplicitNoSemanticInterposition = 3206 Args.hasArg(OPT_fno_semantic_interposition); 3207 3208 // -mrtd option 3209 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3210 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3211 Diags.Report(diag::err_drv_argument_not_allowed_with) 3212 << A->getSpelling() << "-fdefault-calling-conv"; 3213 else { 3214 llvm::Triple T(TargetOpts.Triple); 3215 if (T.getArch() != llvm::Triple::x86) 3216 Diags.Report(diag::err_drv_argument_not_allowed_with) 3217 << A->getSpelling() << T.getTriple(); 3218 else 3219 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3220 } 3221 } 3222 3223 // Check if -fopenmp is specified and set default version to 5.0. 3224 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 50 : 0; 3225 // Check if -fopenmp-simd is specified. 3226 bool IsSimdSpecified = 3227 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3228 /*Default=*/false); 3229 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3230 Opts.OpenMPUseTLS = 3231 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3232 Opts.OpenMPIsDevice = 3233 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3234 Opts.OpenMPIRBuilder = 3235 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3236 bool IsTargetSpecified = 3237 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3238 3239 if (Opts.OpenMP || Opts.OpenMPSimd) { 3240 if (int Version = getLastArgIntValue( 3241 Args, OPT_fopenmp_version_EQ, 3242 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3243 Opts.OpenMP = Version; 3244 // Provide diagnostic when a given target is not expected to be an OpenMP 3245 // device or host. 3246 if (!Opts.OpenMPIsDevice) { 3247 switch (T.getArch()) { 3248 default: 3249 break; 3250 // Add unsupported host targets here: 3251 case llvm::Triple::nvptx: 3252 case llvm::Triple::nvptx64: 3253 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3254 << TargetOpts.Triple; 3255 break; 3256 } 3257 } 3258 } 3259 3260 // Set the flag to prevent the implementation from emitting device exception 3261 // handling code for those requiring so. 3262 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3263 Opts.OpenCLCPlusPlus) { 3264 Opts.Exceptions = 0; 3265 Opts.CXXExceptions = 0; 3266 } 3267 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3268 Opts.OpenMPCUDANumSMs = 3269 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3270 Opts.OpenMPCUDANumSMs, Diags); 3271 Opts.OpenMPCUDABlocksPerSM = 3272 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3273 Opts.OpenMPCUDABlocksPerSM, Diags); 3274 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3275 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3276 Opts.OpenMPCUDAReductionBufNum, Diags); 3277 } 3278 3279 // Prevent auto-widening the representation of loop counters during an 3280 // OpenMP collapse clause. 3281 Opts.OpenMPOptimisticCollapse = 3282 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3283 3284 // Get the OpenMP target triples if any. 3285 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3286 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3287 auto getArchPtrSize = [](const llvm::Triple &T) { 3288 if (T.isArch16Bit()) 3289 return Arch16Bit; 3290 if (T.isArch32Bit()) 3291 return Arch32Bit; 3292 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3293 return Arch64Bit; 3294 }; 3295 3296 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3297 llvm::Triple TT(A->getValue(i)); 3298 3299 if (TT.getArch() == llvm::Triple::UnknownArch || 3300 !(TT.getArch() == llvm::Triple::aarch64 || 3301 TT.getArch() == llvm::Triple::ppc || 3302 TT.getArch() == llvm::Triple::ppc64 || 3303 TT.getArch() == llvm::Triple::ppc64le || 3304 TT.getArch() == llvm::Triple::nvptx || 3305 TT.getArch() == llvm::Triple::nvptx64 || 3306 TT.getArch() == llvm::Triple::amdgcn || 3307 TT.getArch() == llvm::Triple::x86 || 3308 TT.getArch() == llvm::Triple::x86_64)) 3309 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3310 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3311 Diags.Report(diag::err_drv_incompatible_omp_arch) 3312 << A->getValue(i) << T.str(); 3313 else 3314 Opts.OMPTargetTriples.push_back(TT); 3315 } 3316 } 3317 3318 // Get OpenMP host file path if any and report if a non existent file is 3319 // found 3320 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3321 Opts.OMPHostIRFile = A->getValue(); 3322 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3323 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3324 << Opts.OMPHostIRFile; 3325 } 3326 3327 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3328 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3329 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3330 3331 // Set CUDA support for parallel execution of target regions for OpenMP target 3332 // NVPTX/AMDGCN if specified in options. 3333 Opts.OpenMPCUDATargetParallel = 3334 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3335 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3336 3337 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3338 Opts.OpenMPCUDAForceFullRuntime = 3339 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3340 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3341 3342 // Record whether the __DEPRECATED define was requested. 3343 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3344 OPT_fno_deprecated_macro, 3345 Opts.Deprecated); 3346 3347 // FIXME: Eliminate this dependency. 3348 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3349 OptSize = getOptimizationLevelSize(Args); 3350 Opts.Optimize = Opt != 0; 3351 Opts.OptimizeSize = OptSize != 0; 3352 3353 // This is the __NO_INLINE__ define, which just depends on things like the 3354 // optimization level and -fno-inline, not actually whether the backend has 3355 // inlining enabled. 3356 Opts.NoInlineDefine = !Opts.Optimize; 3357 if (Arg *InlineArg = Args.getLastArg( 3358 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3359 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3360 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3361 Opts.NoInlineDefine = true; 3362 3363 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3364 StringRef Val = A->getValue(); 3365 if (Val == "fast") 3366 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3367 else if (Val == "on") 3368 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3369 else if (Val == "off") 3370 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3371 else 3372 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3373 } 3374 3375 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3376 if (Args.hasArg(OPT_frounding_math)) { 3377 FPRM = llvm::RoundingMode::Dynamic; 3378 } 3379 Opts.setFPRoundingMode(FPRM); 3380 3381 if (Args.hasArg(OPT_ftrapping_math)) { 3382 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3383 } 3384 3385 if (Args.hasArg(OPT_fno_trapping_math)) { 3386 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3387 } 3388 3389 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3390 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3391 StringRef Val = A->getValue(); 3392 if (Val.equals("ignore")) 3393 FPEB = LangOptions::FPE_Ignore; 3394 else if (Val.equals("maytrap")) 3395 FPEB = LangOptions::FPE_MayTrap; 3396 else if (Val.equals("strict")) 3397 FPEB = LangOptions::FPE_Strict; 3398 else 3399 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3400 } 3401 Opts.setFPExceptionMode(FPEB); 3402 3403 Opts.RetainCommentsFromSystemHeaders = 3404 Args.hasArg(OPT_fretain_comments_from_system_headers); 3405 3406 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3407 switch (SSP) { 3408 default: 3409 Diags.Report(diag::err_drv_invalid_value) 3410 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3411 break; 3412 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3413 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3414 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3415 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3416 } 3417 3418 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3419 StringRef Val = A->getValue(); 3420 if (Val == "uninitialized") 3421 Opts.setTrivialAutoVarInit( 3422 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3423 else if (Val == "zero") 3424 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3425 else if (Val == "pattern") 3426 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3427 else 3428 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3429 } 3430 3431 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init_stop_after)) { 3432 int Val = std::stoi(A->getValue()); 3433 Opts.TrivialAutoVarInitStopAfter = Val; 3434 } 3435 3436 // Parse -fsanitize= arguments. 3437 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3438 Diags, Opts.Sanitize); 3439 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3440 Opts.SanitizeAddressFieldPadding = 3441 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3442 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3443 std::vector<std::string> systemBlacklists = 3444 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3445 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3446 systemBlacklists.begin(), 3447 systemBlacklists.end()); 3448 3449 // -fxray-instrument 3450 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3451 Opts.XRayAlwaysEmitCustomEvents = 3452 Args.hasArg(OPT_fxray_always_emit_customevents); 3453 Opts.XRayAlwaysEmitTypedEvents = 3454 Args.hasArg(OPT_fxray_always_emit_typedevents); 3455 3456 // -fxray-{always,never}-instrument= filenames. 3457 Opts.XRayAlwaysInstrumentFiles = 3458 Args.getAllArgValues(OPT_fxray_always_instrument); 3459 Opts.XRayNeverInstrumentFiles = 3460 Args.getAllArgValues(OPT_fxray_never_instrument); 3461 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3462 3463 // -fforce-emit-vtables 3464 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3465 3466 // -fallow-editor-placeholders 3467 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3468 3469 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3470 3471 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3472 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3473 3474 StringRef Ver = A->getValue(); 3475 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3476 unsigned Major, Minor = 0; 3477 3478 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3479 // y or y.0 (4 <= y <= current version). 3480 if (!VerParts.first.startswith("0") && 3481 !VerParts.first.getAsInteger(10, Major) && 3482 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3483 (Major == 3 ? VerParts.second.size() == 1 && 3484 !VerParts.second.getAsInteger(10, Minor) 3485 : VerParts.first.size() == Ver.size() || 3486 VerParts.second == "0")) { 3487 // Got a valid version number. 3488 if (Major == 3 && Minor <= 8) 3489 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3490 else if (Major <= 4) 3491 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3492 else if (Major <= 6) 3493 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3494 else if (Major <= 7) 3495 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3496 else if (Major <= 9) 3497 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3498 else if (Major <= 11) 3499 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3500 } else if (Ver != "latest") { 3501 Diags.Report(diag::err_drv_invalid_value) 3502 << A->getAsString(Args) << A->getValue(); 3503 } 3504 } 3505 3506 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3507 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3508 Opts.PCHInstantiateTemplates = Args.hasArg(OPT_fpch_instantiate_templates); 3509 3510 Opts.MatrixTypes = Args.hasArg(OPT_fenable_matrix); 3511 3512 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3513 3514 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3515 StringRef SignScope = A->getValue(); 3516 3517 if (SignScope.equals_lower("none")) 3518 Opts.setSignReturnAddressScope( 3519 LangOptions::SignReturnAddressScopeKind::None); 3520 else if (SignScope.equals_lower("all")) 3521 Opts.setSignReturnAddressScope( 3522 LangOptions::SignReturnAddressScopeKind::All); 3523 else if (SignScope.equals_lower("non-leaf")) 3524 Opts.setSignReturnAddressScope( 3525 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3526 else 3527 Diags.Report(diag::err_drv_invalid_value) 3528 << A->getAsString(Args) << SignScope; 3529 3530 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3531 StringRef SignKey = A->getValue(); 3532 if (!SignScope.empty() && !SignKey.empty()) { 3533 if (SignKey.equals_lower("a_key")) 3534 Opts.setSignReturnAddressKey( 3535 LangOptions::SignReturnAddressKeyKind::AKey); 3536 else if (SignKey.equals_lower("b_key")) 3537 Opts.setSignReturnAddressKey( 3538 LangOptions::SignReturnAddressKeyKind::BKey); 3539 else 3540 Diags.Report(diag::err_drv_invalid_value) 3541 << A->getAsString(Args) << SignKey; 3542 } 3543 } 3544 } 3545 3546 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3547 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 3548 3549 Opts.CompatibilityQualifiedIdBlockParamTypeChecking = 3550 Args.hasArg(OPT_fcompatibility_qualified_id_block_param_type_checking); 3551 3552 Opts.RelativeCXXABIVTables = 3553 Args.hasFlag(OPT_fexperimental_relative_cxx_abi_vtables, 3554 OPT_fno_experimental_relative_cxx_abi_vtables, 3555 /*default=*/false); 3556 } 3557 3558 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3559 switch (Action) { 3560 case frontend::ASTDeclList: 3561 case frontend::ASTDump: 3562 case frontend::ASTPrint: 3563 case frontend::ASTView: 3564 case frontend::EmitAssembly: 3565 case frontend::EmitBC: 3566 case frontend::EmitHTML: 3567 case frontend::EmitLLVM: 3568 case frontend::EmitLLVMOnly: 3569 case frontend::EmitCodeGenOnly: 3570 case frontend::EmitObj: 3571 case frontend::FixIt: 3572 case frontend::GenerateModule: 3573 case frontend::GenerateModuleInterface: 3574 case frontend::GenerateHeaderModule: 3575 case frontend::GeneratePCH: 3576 case frontend::GenerateInterfaceStubs: 3577 case frontend::ParseSyntaxOnly: 3578 case frontend::ModuleFileInfo: 3579 case frontend::VerifyPCH: 3580 case frontend::PluginAction: 3581 case frontend::RewriteObjC: 3582 case frontend::RewriteTest: 3583 case frontend::RunAnalysis: 3584 case frontend::TemplightDump: 3585 case frontend::MigrateSource: 3586 return false; 3587 3588 case frontend::DumpCompilerOptions: 3589 case frontend::DumpRawTokens: 3590 case frontend::DumpTokens: 3591 case frontend::InitOnly: 3592 case frontend::PrintPreamble: 3593 case frontend::PrintPreprocessedInput: 3594 case frontend::RewriteMacros: 3595 case frontend::RunPreprocessorOnly: 3596 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3597 return true; 3598 } 3599 llvm_unreachable("invalid frontend action"); 3600 } 3601 3602 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3603 DiagnosticsEngine &Diags, 3604 frontend::ActionKind Action) { 3605 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3606 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3607 Args.hasArg(OPT_pch_through_hdrstop_use); 3608 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3609 Opts.PCHThroughHeader = 3610 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3611 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3612 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3613 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3614 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3615 3616 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3617 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3618 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3619 3620 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3621 auto Split = StringRef(A).split('='); 3622 Opts.MacroPrefixMap.insert( 3623 {std::string(Split.first), std::string(Split.second)}); 3624 } 3625 3626 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3627 StringRef Value(A->getValue()); 3628 size_t Comma = Value.find(','); 3629 unsigned Bytes = 0; 3630 unsigned EndOfLine = 0; 3631 3632 if (Comma == StringRef::npos || 3633 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3634 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3635 Diags.Report(diag::err_drv_preamble_format); 3636 else { 3637 Opts.PrecompiledPreambleBytes.first = Bytes; 3638 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3639 } 3640 } 3641 3642 // Add the __CET__ macro if a CFProtection option is set. 3643 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3644 StringRef Name = A->getValue(); 3645 if (Name == "branch") 3646 Opts.addMacroDef("__CET__=1"); 3647 else if (Name == "return") 3648 Opts.addMacroDef("__CET__=2"); 3649 else if (Name == "full") 3650 Opts.addMacroDef("__CET__=3"); 3651 } 3652 3653 // Add macros from the command line. 3654 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3655 if (A->getOption().matches(OPT_D)) 3656 Opts.addMacroDef(A->getValue()); 3657 else 3658 Opts.addMacroUndef(A->getValue()); 3659 } 3660 3661 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3662 3663 // Add the ordered list of -includes. 3664 for (const auto *A : Args.filtered(OPT_include)) 3665 Opts.Includes.emplace_back(A->getValue()); 3666 3667 for (const auto *A : Args.filtered(OPT_chain_include)) 3668 Opts.ChainedIncludes.emplace_back(A->getValue()); 3669 3670 for (const auto *A : Args.filtered(OPT_remap_file)) { 3671 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3672 3673 if (Split.second.empty()) { 3674 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3675 continue; 3676 } 3677 3678 Opts.addRemappedFile(Split.first, Split.second); 3679 } 3680 3681 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3682 StringRef Name = A->getValue(); 3683 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3684 .Case("libc++", ARCXX_libcxx) 3685 .Case("libstdc++", ARCXX_libstdcxx) 3686 .Case("none", ARCXX_nolib) 3687 .Default(~0U); 3688 if (Library == ~0U) 3689 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3690 else 3691 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3692 } 3693 3694 // Always avoid lexing editor placeholders when we're just running the 3695 // preprocessor as we never want to emit the 3696 // "editor placeholder in source file" error in PP only mode. 3697 if (isStrictlyPreprocessorAction(Action)) 3698 Opts.LexEditorPlaceholders = false; 3699 3700 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3701 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3702 } 3703 3704 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3705 ArgList &Args, 3706 frontend::ActionKind Action) { 3707 if (isStrictlyPreprocessorAction(Action)) 3708 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3709 else 3710 Opts.ShowCPP = 0; 3711 3712 Opts.ShowComments = Args.hasArg(OPT_C); 3713 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3714 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3715 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3716 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3717 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3718 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3719 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3720 } 3721 3722 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3723 DiagnosticsEngine &Diags) { 3724 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3725 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3726 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3727 StringRef Value = A->getValue(); 3728 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3729 .Case("default", llvm::EABI::Default) 3730 .Case("4", llvm::EABI::EABI4) 3731 .Case("5", llvm::EABI::EABI5) 3732 .Case("gnu", llvm::EABI::GNU) 3733 .Default(llvm::EABI::Unknown); 3734 if (EABIVersion == llvm::EABI::Unknown) 3735 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3736 << Value; 3737 else 3738 Opts.EABIVersion = EABIVersion; 3739 } 3740 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3741 Opts.TuneCPU = std::string(Args.getLastArgValue(OPT_tune_cpu)); 3742 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3743 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3744 Opts.LinkerVersion = 3745 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3746 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3747 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3748 Opts.NVPTXUseShortPointers = Args.hasFlag( 3749 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3750 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3751 llvm::VersionTuple Version; 3752 if (Version.tryParse(A->getValue())) 3753 Diags.Report(diag::err_drv_invalid_value) 3754 << A->getAsString(Args) << A->getValue(); 3755 else 3756 Opts.SDKVersion = Version; 3757 } 3758 } 3759 3760 bool CompilerInvocation::parseSimpleArgs(const ArgList &Args, 3761 DiagnosticsEngine &Diags) { 3762 #define OPTION_WITH_MARSHALLING( \ 3763 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3764 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3765 TYPE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 3766 { \ 3767 this->KEYPATH = MERGER(this->KEYPATH, DEFAULT_VALUE); \ 3768 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, Args, Diags)) \ 3769 this->KEYPATH = MERGER(this->KEYPATH, static_cast<TYPE>(*MaybeValue)); \ 3770 } 3771 3772 #define OPTION_WITH_MARSHALLING_BOOLEAN( \ 3773 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3774 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3775 TYPE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX, NEG_ID, \ 3776 NEG_SPELLING) \ 3777 { \ 3778 if (auto MaybeValue = \ 3779 NORMALIZER(OPT_##ID, OPT_##NEG_ID, TABLE_INDEX, Args, Diags)) \ 3780 this->KEYPATH = MERGER(this->KEYPATH, static_cast<TYPE>(*MaybeValue)); \ 3781 else \ 3782 this->KEYPATH = MERGER(this->KEYPATH, DEFAULT_VALUE); \ 3783 } 3784 3785 #include "clang/Driver/Options.inc" 3786 #undef OPTION_WITH_MARSHALLING_BOOLEAN 3787 #undef OPTION_WITH_MARSHALLING 3788 return true; 3789 } 3790 3791 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3792 ArrayRef<const char *> CommandLineArgs, 3793 DiagnosticsEngine &Diags, 3794 const char *Argv0) { 3795 bool Success = true; 3796 3797 // Parse the arguments. 3798 const OptTable &Opts = getDriverOptTable(); 3799 const unsigned IncludedFlagsBitmask = options::CC1Option; 3800 unsigned MissingArgIndex, MissingArgCount; 3801 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3802 MissingArgCount, IncludedFlagsBitmask); 3803 LangOptions &LangOpts = *Res.getLangOpts(); 3804 3805 // Check for missing argument error. 3806 if (MissingArgCount) { 3807 Diags.Report(diag::err_drv_missing_argument) 3808 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3809 Success = false; 3810 } 3811 3812 // Issue errors on unknown arguments. 3813 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3814 auto ArgString = A->getAsString(Args); 3815 std::string Nearest; 3816 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3817 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3818 else 3819 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3820 << ArgString << Nearest; 3821 Success = false; 3822 } 3823 3824 Success &= Res.parseSimpleArgs(Args, Diags); 3825 3826 llvm::sys::Process::UseANSIEscapeCodes( 3827 Res.DiagnosticOpts->UseANSIEscapeCodes); 3828 3829 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3830 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3831 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3832 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3833 Res.getDependencyOutputOpts().Targets.empty()) { 3834 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3835 Success = false; 3836 } 3837 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3838 /*DefaultDiagColor=*/false); 3839 ParseCommentArgs(LangOpts.CommentOpts, Args); 3840 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3841 // FIXME: We shouldn't have to pass the DashX option around here 3842 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3843 LangOpts.IsHeaderFile); 3844 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3845 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3846 Res.getTargetOpts(), Res.getFrontendOpts()); 3847 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3848 Res.getFileSystemOpts().WorkingDir); 3849 llvm::Triple T(Res.getTargetOpts().Triple); 3850 if (DashX.getFormat() == InputKind::Precompiled || 3851 DashX.getLanguage() == Language::LLVM_IR) { 3852 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3853 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3854 // what the input type is. 3855 if (Args.hasArg(OPT_fobjc_arc)) 3856 LangOpts.ObjCAutoRefCount = 1; 3857 // PIClevel and PIELevel are needed during code generation and this should be 3858 // set regardless of the input type. 3859 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3860 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3861 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3862 Diags, LangOpts.Sanitize); 3863 } else { 3864 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3865 // FIXME: Should we really be calling this for an Language::Asm input? 3866 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3867 Res.getPreprocessorOpts(), Diags); 3868 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3869 LangOpts.ObjCExceptions = 1; 3870 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3871 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3872 // preprocessed input as we don't expect it to be used with -std=libc++ 3873 // anyway. 3874 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3875 } 3876 } 3877 3878 LangOpts.FunctionAlignment = 3879 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3880 3881 if (LangOpts.CUDA) { 3882 // During CUDA device-side compilation, the aux triple is the 3883 // triple used for host compilation. 3884 if (LangOpts.CUDAIsDevice) 3885 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3886 } 3887 3888 // Set the triple of the host for OpenMP device compile. 3889 if (LangOpts.OpenMPIsDevice) 3890 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3891 3892 // FIXME: Override value name discarding when asan or msan is used because the 3893 // backend passes depend on the name of the alloca in order to print out 3894 // names. 3895 Res.getCodeGenOpts().DiscardValueNames &= 3896 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3897 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3898 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3899 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3900 3901 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3902 Res.getFrontendOpts().ProgramAction); 3903 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3904 Res.getFrontendOpts().ProgramAction); 3905 3906 // Turn on -Wspir-compat for SPIR target. 3907 if (T.isSPIR()) 3908 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3909 3910 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3911 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3912 !Res.getLangOpts()->Sanitize.empty()) { 3913 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3914 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3915 } 3916 3917 // Store the command-line for using in the CodeView backend. 3918 Res.getCodeGenOpts().Argv0 = Argv0; 3919 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 3920 3921 return Success; 3922 } 3923 3924 std::string CompilerInvocation::getModuleHash() const { 3925 // Note: For QoI reasons, the things we use as a hash here should all be 3926 // dumped via the -module-info flag. 3927 using llvm::hash_code; 3928 using llvm::hash_value; 3929 using llvm::hash_combine; 3930 using llvm::hash_combine_range; 3931 3932 // Start the signature with the compiler version. 3933 // FIXME: We'd rather use something more cryptographically sound than 3934 // CityHash, but this will do for now. 3935 hash_code code = hash_value(getClangFullRepositoryVersion()); 3936 3937 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3938 // and getClangFullRepositoryVersion() doesn't include git revision. 3939 code = hash_combine(code, serialization::VERSION_MAJOR, 3940 serialization::VERSION_MINOR); 3941 3942 // Extend the signature with the language options 3943 #define LANGOPT(Name, Bits, Default, Description) \ 3944 code = hash_combine(code, LangOpts->Name); 3945 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3946 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3947 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3948 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3949 #include "clang/Basic/LangOptions.def" 3950 3951 for (StringRef Feature : LangOpts->ModuleFeatures) 3952 code = hash_combine(code, Feature); 3953 3954 code = hash_combine(code, LangOpts->ObjCRuntime); 3955 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 3956 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 3957 3958 // Extend the signature with the target options. 3959 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3960 TargetOpts->TuneCPU, TargetOpts->ABI); 3961 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3962 code = hash_combine(code, FeatureAsWritten); 3963 3964 // Extend the signature with preprocessor options. 3965 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3966 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3967 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3968 3969 for (const auto &I : getPreprocessorOpts().Macros) { 3970 // If we're supposed to ignore this macro for the purposes of modules, 3971 // don't put it into the hash. 3972 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3973 // Check whether we're ignoring this macro. 3974 StringRef MacroDef = I.first; 3975 if (hsOpts.ModulesIgnoreMacros.count( 3976 llvm::CachedHashString(MacroDef.split('=').first))) 3977 continue; 3978 } 3979 3980 code = hash_combine(code, I.first, I.second); 3981 } 3982 3983 // Extend the signature with the sysroot and other header search options. 3984 code = hash_combine(code, hsOpts.Sysroot, 3985 hsOpts.ModuleFormat, 3986 hsOpts.UseDebugInfo, 3987 hsOpts.UseBuiltinIncludes, 3988 hsOpts.UseStandardSystemIncludes, 3989 hsOpts.UseStandardCXXIncludes, 3990 hsOpts.UseLibcxx, 3991 hsOpts.ModulesValidateDiagnosticOptions); 3992 code = hash_combine(code, hsOpts.ResourceDir); 3993 3994 if (hsOpts.ModulesStrictContextHash) { 3995 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3996 hsOpts.SystemHeaderPrefixes.end()); 3997 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3998 hsOpts.UserEntries.end()); 3999 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4000 hsOpts.UserEntries.size(), UEC); 4001 4002 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4003 #define DIAGOPT(Name, Bits, Default) \ 4004 code = hash_combine(code, diagOpts.Name); 4005 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4006 code = hash_combine(code, diagOpts.get##Name()); 4007 #include "clang/Basic/DiagnosticOptions.def" 4008 #undef DIAGOPT 4009 #undef ENUM_DIAGOPT 4010 } 4011 4012 // Extend the signature with the user build path. 4013 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4014 4015 // Extend the signature with the module file extensions. 4016 const FrontendOptions &frontendOpts = getFrontendOpts(); 4017 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4018 code = ext->hashExtension(code); 4019 } 4020 4021 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4022 // affects the debug info in the PCM. 4023 if (getCodeGenOpts().DebugTypeExtRefs) 4024 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4025 code = hash_combine(code, KeyValue.first, KeyValue.second); 4026 4027 // Extend the signature with the enabled sanitizers, if at least one is 4028 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4029 SanitizerSet SanHash = LangOpts->Sanitize; 4030 SanHash.clear(getPPTransparentSanitizers()); 4031 if (!SanHash.empty()) 4032 code = hash_combine(code, SanHash.Mask); 4033 4034 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 4035 } 4036 4037 void CompilerInvocation::generateCC1CommandLine( 4038 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4039 #define OPTION_WITH_MARSHALLING( \ 4040 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4041 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4042 TYPE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 4043 if (((FLAGS) & options::CC1Option) && \ 4044 (ALWAYS_EMIT || EXTRACTOR(this->KEYPATH) != (DEFAULT_VALUE))) { \ 4045 DENORMALIZER(Args, SPELLING, SA, TABLE_INDEX, EXTRACTOR(this->KEYPATH)); \ 4046 } 4047 4048 #define OPTION_WITH_MARSHALLING_BOOLEAN( \ 4049 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4050 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4051 TYPE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX, NEG_ID, \ 4052 NEG_SPELLING) \ 4053 if (((FLAGS)&options::CC1Option) && \ 4054 (ALWAYS_EMIT || EXTRACTOR(this->KEYPATH) != DEFAULT_VALUE)) { \ 4055 DENORMALIZER(Args, SPELLING, NEG_SPELLING, SA, TABLE_INDEX, \ 4056 EXTRACTOR(this->KEYPATH)); \ 4057 } 4058 4059 #include "clang/Driver/Options.inc" 4060 #undef OPTION_WITH_MARSHALLING_BOOLEAN 4061 #undef OPTION_WITH_MARSHALLING 4062 } 4063 4064 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4065 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4066 DiagnosticsEngine &Diags) { 4067 return createVFSFromCompilerInvocation(CI, Diags, 4068 llvm::vfs::getRealFileSystem()); 4069 } 4070 4071 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4072 clang::createVFSFromCompilerInvocation( 4073 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4074 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4075 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4076 return BaseFS; 4077 4078 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4079 // earlier vfs files are on the bottom 4080 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4081 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4082 Result->getBufferForFile(File); 4083 if (!Buffer) { 4084 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4085 continue; 4086 } 4087 4088 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4089 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4090 /*DiagContext*/ nullptr, Result); 4091 if (!FS) { 4092 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4093 continue; 4094 } 4095 4096 Result = FS; 4097 } 4098 return Result; 4099 } 4100