1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/LangStandard.h" 22 #include "clang/Basic/ObjCRuntime.h" 23 #include "clang/Basic/Sanitizers.h" 24 #include "clang/Basic/SourceLocation.h" 25 #include "clang/Basic/TargetOptions.h" 26 #include "clang/Basic/Version.h" 27 #include "clang/Basic/Visibility.h" 28 #include "clang/Basic/XRayInstr.h" 29 #include "clang/Config/config.h" 30 #include "clang/Driver/Driver.h" 31 #include "clang/Driver/DriverDiagnostic.h" 32 #include "clang/Driver/Options.h" 33 #include "clang/Frontend/CommandLineSourceLoc.h" 34 #include "clang/Frontend/DependencyOutputOptions.h" 35 #include "clang/Frontend/FrontendDiagnostic.h" 36 #include "clang/Frontend/FrontendOptions.h" 37 #include "clang/Frontend/FrontendPluginRegistry.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/Utils.h" 41 #include "clang/Lex/HeaderSearchOptions.h" 42 #include "clang/Lex/PreprocessorOptions.h" 43 #include "clang/Sema/CodeCompleteOptions.h" 44 #include "clang/Serialization/ASTBitCodes.h" 45 #include "clang/Serialization/ModuleFileExtension.h" 46 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 47 #include "llvm/ADT/APInt.h" 48 #include "llvm/ADT/ArrayRef.h" 49 #include "llvm/ADT/CachedHashString.h" 50 #include "llvm/ADT/FloatingPointMode.h" 51 #include "llvm/ADT/Hashing.h" 52 #include "llvm/ADT/None.h" 53 #include "llvm/ADT/Optional.h" 54 #include "llvm/ADT/SmallString.h" 55 #include "llvm/ADT/SmallVector.h" 56 #include "llvm/ADT/StringRef.h" 57 #include "llvm/ADT/StringSwitch.h" 58 #include "llvm/ADT/Triple.h" 59 #include "llvm/ADT/Twine.h" 60 #include "llvm/IR/DebugInfoMetadata.h" 61 #include "llvm/Linker/Linker.h" 62 #include "llvm/MC/MCTargetOptions.h" 63 #include "llvm/Option/Arg.h" 64 #include "llvm/Option/ArgList.h" 65 #include "llvm/Option/OptSpecifier.h" 66 #include "llvm/Option/OptTable.h" 67 #include "llvm/Option/Option.h" 68 #include "llvm/ProfileData/InstrProfReader.h" 69 #include "llvm/Support/CodeGen.h" 70 #include "llvm/Support/Compiler.h" 71 #include "llvm/Support/Error.h" 72 #include "llvm/Support/ErrorHandling.h" 73 #include "llvm/Support/ErrorOr.h" 74 #include "llvm/Support/FileSystem.h" 75 #include "llvm/Support/Host.h" 76 #include "llvm/Support/MathExtras.h" 77 #include "llvm/Support/MemoryBuffer.h" 78 #include "llvm/Support/Path.h" 79 #include "llvm/Support/Process.h" 80 #include "llvm/Support/Regex.h" 81 #include "llvm/Support/VersionTuple.h" 82 #include "llvm/Support/VirtualFileSystem.h" 83 #include "llvm/Support/raw_ostream.h" 84 #include "llvm/Target/TargetOptions.h" 85 #include <algorithm> 86 #include <atomic> 87 #include <cassert> 88 #include <cstddef> 89 #include <cstring> 90 #include <memory> 91 #include <string> 92 #include <tuple> 93 #include <utility> 94 #include <vector> 95 96 using namespace clang; 97 using namespace driver; 98 using namespace options; 99 using namespace llvm::opt; 100 101 //===----------------------------------------------------------------------===// 102 // Initialization. 103 //===----------------------------------------------------------------------===// 104 105 CompilerInvocationBase::CompilerInvocationBase() 106 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 107 DiagnosticOpts(new DiagnosticOptions()), 108 HeaderSearchOpts(new HeaderSearchOptions()), 109 PreprocessorOpts(new PreprocessorOptions()) {} 110 111 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 112 : LangOpts(new LangOptions(*X.getLangOpts())), 113 TargetOpts(new TargetOptions(X.getTargetOpts())), 114 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 115 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 116 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 117 118 CompilerInvocationBase::~CompilerInvocationBase() = default; 119 120 //===----------------------------------------------------------------------===// 121 // Normalizers 122 //===----------------------------------------------------------------------===// 123 124 #define SIMPLE_ENUM_VALUE_TABLE 125 #include "clang/Driver/Options.inc" 126 #undef SIMPLE_ENUM_VALUE_TABLE 127 128 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 129 unsigned TableIndex, 130 const ArgList &Args, 131 DiagnosticsEngine &Diags) { 132 assert(TableIndex < SimpleEnumValueTablesSize); 133 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 134 135 auto *Arg = Args.getLastArg(Opt); 136 if (!Arg) 137 return None; 138 139 StringRef ArgValue = Arg->getValue(); 140 for (int I = 0, E = Table.Size; I != E; ++I) 141 if (ArgValue == Table.Table[I].Name) 142 return Table.Table[I].Value; 143 144 Diags.Report(diag::err_drv_invalid_value) 145 << Arg->getAsString(Args) << ArgValue; 146 return None; 147 } 148 149 static const char *denormalizeSimpleEnum(CompilerInvocation::StringAllocator SA, 150 unsigned TableIndex, unsigned Value) { 151 assert(TableIndex < SimpleEnumValueTablesSize); 152 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 153 for (int I = 0, E = Table.Size; I != E; ++I) 154 if (Value == Table.Table[I].Value) 155 return Table.Table[I].Name; 156 157 llvm_unreachable("The simple enum value was not correctly defined in " 158 "the tablegen option description"); 159 } 160 161 static const char *denormalizeString(CompilerInvocation::StringAllocator SA, 162 unsigned TableIndex, 163 const std::string &Value) { 164 return SA(Value); 165 } 166 167 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 168 const ArgList &Args, 169 DiagnosticsEngine &Diags) { 170 auto *Arg = Args.getLastArg(Opt); 171 if (!Arg) 172 return None; 173 return llvm::Triple::normalize(Arg->getValue()); 174 } 175 176 //===----------------------------------------------------------------------===// 177 // Deserialization (from args) 178 //===----------------------------------------------------------------------===// 179 180 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 181 DiagnosticsEngine &Diags) { 182 unsigned DefaultOpt = llvm::CodeGenOpt::None; 183 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 184 DefaultOpt = llvm::CodeGenOpt::Default; 185 186 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 187 if (A->getOption().matches(options::OPT_O0)) 188 return llvm::CodeGenOpt::None; 189 190 if (A->getOption().matches(options::OPT_Ofast)) 191 return llvm::CodeGenOpt::Aggressive; 192 193 assert(A->getOption().matches(options::OPT_O)); 194 195 StringRef S(A->getValue()); 196 if (S == "s" || S == "z") 197 return llvm::CodeGenOpt::Default; 198 199 if (S == "g") 200 return llvm::CodeGenOpt::Less; 201 202 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 203 } 204 205 return DefaultOpt; 206 } 207 208 static unsigned getOptimizationLevelSize(ArgList &Args) { 209 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 210 if (A->getOption().matches(options::OPT_O)) { 211 switch (A->getValue()[0]) { 212 default: 213 return 0; 214 case 's': 215 return 1; 216 case 'z': 217 return 2; 218 } 219 } 220 } 221 return 0; 222 } 223 224 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 225 OptSpecifier GroupWithValue, 226 std::vector<std::string> &Diagnostics) { 227 for (auto *A : Args.filtered(Group)) { 228 if (A->getOption().getKind() == Option::FlagClass) { 229 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 230 // its name (minus the "W" or "R" at the beginning) to the warning list. 231 Diagnostics.push_back( 232 std::string(A->getOption().getName().drop_front(1))); 233 } else if (A->getOption().matches(GroupWithValue)) { 234 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 235 Diagnostics.push_back( 236 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 237 } else { 238 // Otherwise, add its value (for OPT_W_Joined and similar). 239 for (const auto *Arg : A->getValues()) 240 Diagnostics.emplace_back(Arg); 241 } 242 } 243 } 244 245 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 246 // it won't verify the input. 247 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 248 DiagnosticsEngine *Diags); 249 250 static void getAllNoBuiltinFuncValues(ArgList &Args, 251 std::vector<std::string> &Funcs) { 252 SmallVector<const char *, 8> Values; 253 for (const auto &Arg : Args) { 254 const Option &O = Arg->getOption(); 255 if (O.matches(options::OPT_fno_builtin_)) { 256 const char *FuncName = Arg->getValue(); 257 if (Builtin::Context::isBuiltinFunc(FuncName)) 258 Values.push_back(FuncName); 259 } 260 } 261 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 262 } 263 264 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 265 DiagnosticsEngine &Diags) { 266 bool Success = true; 267 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 268 StringRef Name = A->getValue(); 269 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 270 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 271 .Case(CMDFLAG, NAME##Model) 272 #include "clang/StaticAnalyzer/Core/Analyses.def" 273 .Default(NumStores); 274 if (Value == NumStores) { 275 Diags.Report(diag::err_drv_invalid_value) 276 << A->getAsString(Args) << Name; 277 Success = false; 278 } else { 279 Opts.AnalysisStoreOpt = Value; 280 } 281 } 282 283 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 284 StringRef Name = A->getValue(); 285 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 286 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 287 .Case(CMDFLAG, NAME##Model) 288 #include "clang/StaticAnalyzer/Core/Analyses.def" 289 .Default(NumConstraints); 290 if (Value == NumConstraints) { 291 Diags.Report(diag::err_drv_invalid_value) 292 << A->getAsString(Args) << Name; 293 Success = false; 294 } else { 295 Opts.AnalysisConstraintsOpt = Value; 296 } 297 } 298 299 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 300 StringRef Name = A->getValue(); 301 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 302 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 303 .Case(CMDFLAG, PD_##NAME) 304 #include "clang/StaticAnalyzer/Core/Analyses.def" 305 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 306 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 307 Diags.Report(diag::err_drv_invalid_value) 308 << A->getAsString(Args) << Name; 309 Success = false; 310 } else { 311 Opts.AnalysisDiagOpt = Value; 312 } 313 } 314 315 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 316 StringRef Name = A->getValue(); 317 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 318 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 319 .Case(CMDFLAG, NAME) 320 #include "clang/StaticAnalyzer/Core/Analyses.def" 321 .Default(NumPurgeModes); 322 if (Value == NumPurgeModes) { 323 Diags.Report(diag::err_drv_invalid_value) 324 << A->getAsString(Args) << Name; 325 Success = false; 326 } else { 327 Opts.AnalysisPurgeOpt = Value; 328 } 329 } 330 331 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 332 StringRef Name = A->getValue(); 333 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 334 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 335 .Case(CMDFLAG, NAME) 336 #include "clang/StaticAnalyzer/Core/Analyses.def" 337 .Default(NumInliningModes); 338 if (Value == NumInliningModes) { 339 Diags.Report(diag::err_drv_invalid_value) 340 << A->getAsString(Args) << Name; 341 Success = false; 342 } else { 343 Opts.InliningMode = Value; 344 } 345 } 346 347 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 348 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 349 Opts.ShowCheckerHelpDeveloper = 350 Args.hasArg(OPT_analyzer_checker_help_developer); 351 352 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 353 Opts.ShowCheckerOptionAlphaList = 354 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 355 Opts.ShowCheckerOptionDeveloperList = 356 Args.hasArg(OPT_analyzer_checker_option_help_developer); 357 358 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 359 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 360 Opts.ShouldEmitErrorsOnInvalidConfigValue = 361 /* negated */!llvm::StringSwitch<bool>( 362 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 363 .Case("true", true) 364 .Case("false", false) 365 .Default(false); 366 Opts.DisableAllCheckers = Args.hasArg(OPT_analyzer_disable_all_checks); 367 368 Opts.visualizeExplodedGraphWithGraphViz = 369 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 370 Opts.DumpExplodedGraphTo = 371 std::string(Args.getLastArgValue(OPT_analyzer_dump_egraph)); 372 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 373 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 374 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 375 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 376 Opts.AnalyzeNestedBlocks = 377 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 378 Opts.AnalyzeSpecificFunction = 379 std::string(Args.getLastArgValue(OPT_analyze_function)); 380 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 381 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 382 Opts.maxBlockVisitOnPath = 383 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 384 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 385 Opts.InlineMaxStackDepth = 386 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 387 Opts.InlineMaxStackDepth, Diags); 388 389 Opts.CheckersAndPackages.clear(); 390 for (const Arg *A : 391 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 392 A->claim(); 393 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 394 // We can have a list of comma separated checker names, e.g: 395 // '-analyzer-checker=cocoa,unix' 396 StringRef CheckerAndPackageList = A->getValue(); 397 SmallVector<StringRef, 16> CheckersAndPackages; 398 CheckerAndPackageList.split(CheckersAndPackages, ","); 399 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 400 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 401 IsEnabled); 402 } 403 404 // Go through the analyzer configuration options. 405 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 406 407 // We can have a list of comma separated config names, e.g: 408 // '-analyzer-config key1=val1,key2=val2' 409 StringRef configList = A->getValue(); 410 SmallVector<StringRef, 4> configVals; 411 configList.split(configVals, ","); 412 for (const auto &configVal : configVals) { 413 StringRef key, val; 414 std::tie(key, val) = configVal.split("="); 415 if (val.empty()) { 416 Diags.Report(SourceLocation(), 417 diag::err_analyzer_config_no_value) << configVal; 418 Success = false; 419 break; 420 } 421 if (val.find('=') != StringRef::npos) { 422 Diags.Report(SourceLocation(), 423 diag::err_analyzer_config_multiple_values) 424 << configVal; 425 Success = false; 426 break; 427 } 428 429 // TODO: Check checker options too, possibly in CheckerRegistry. 430 // Leave unknown non-checker configs unclaimed. 431 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 432 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 433 Diags.Report(diag::err_analyzer_config_unknown) << key; 434 continue; 435 } 436 437 A->claim(); 438 Opts.Config[key] = std::string(val); 439 } 440 } 441 442 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 443 parseAnalyzerConfigs(Opts, &Diags); 444 else 445 parseAnalyzerConfigs(Opts, nullptr); 446 447 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 448 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 449 if (i != 0) 450 os << " "; 451 os << Args.getArgString(i); 452 } 453 os.flush(); 454 455 return Success; 456 } 457 458 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 459 StringRef OptionName, StringRef DefaultVal) { 460 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 461 } 462 463 static void initOption(AnalyzerOptions::ConfigTable &Config, 464 DiagnosticsEngine *Diags, 465 StringRef &OptionField, StringRef Name, 466 StringRef DefaultVal) { 467 // String options may be known to invalid (e.g. if the expected string is a 468 // file name, but the file does not exist), those will have to be checked in 469 // parseConfigs. 470 OptionField = getStringOption(Config, Name, DefaultVal); 471 } 472 473 static void initOption(AnalyzerOptions::ConfigTable &Config, 474 DiagnosticsEngine *Diags, 475 bool &OptionField, StringRef Name, bool DefaultVal) { 476 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 477 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 478 .Case("true", true) 479 .Case("false", false) 480 .Default(None); 481 482 if (!PossiblyInvalidVal) { 483 if (Diags) 484 Diags->Report(diag::err_analyzer_config_invalid_input) 485 << Name << "a boolean"; 486 else 487 OptionField = DefaultVal; 488 } else 489 OptionField = PossiblyInvalidVal.getValue(); 490 } 491 492 static void initOption(AnalyzerOptions::ConfigTable &Config, 493 DiagnosticsEngine *Diags, 494 unsigned &OptionField, StringRef Name, 495 unsigned DefaultVal) { 496 497 OptionField = DefaultVal; 498 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 499 .getAsInteger(0, OptionField); 500 if (Diags && HasFailed) 501 Diags->Report(diag::err_analyzer_config_invalid_input) 502 << Name << "an unsigned"; 503 } 504 505 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 506 DiagnosticsEngine *Diags) { 507 // TODO: There's no need to store the entire configtable, it'd be plenty 508 // enough tostore checker options. 509 510 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 511 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 512 513 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 514 SHALLOW_VAL, DEEP_VAL) \ 515 switch (AnOpts.getUserMode()) { \ 516 case UMK_Shallow: \ 517 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 518 break; \ 519 case UMK_Deep: \ 520 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 521 break; \ 522 } \ 523 524 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 525 #undef ANALYZER_OPTION 526 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 527 528 // At this point, AnalyzerOptions is configured. Let's validate some options. 529 530 // FIXME: Here we try to validate the silenced checkers or packages are valid. 531 // The current approach only validates the registered checkers which does not 532 // contain the runtime enabled checkers and optimally we would validate both. 533 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 534 std::vector<StringRef> Checkers = 535 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 536 std::vector<StringRef> Packages = 537 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 538 539 SmallVector<StringRef, 16> CheckersAndPackages; 540 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 541 542 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 543 if (Diags) { 544 bool IsChecker = CheckerOrPackage.contains('.'); 545 bool IsValidName = 546 IsChecker 547 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 548 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 549 550 if (!IsValidName) 551 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 552 << CheckerOrPackage; 553 } 554 555 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 556 } 557 } 558 559 if (!Diags) 560 return; 561 562 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 563 Diags->Report(diag::err_analyzer_config_invalid_input) 564 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 565 566 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 567 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 568 << "a filename"; 569 570 if (!AnOpts.ModelPath.empty() && 571 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 572 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 573 << "a filename"; 574 } 575 576 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 577 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 578 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 579 return true; 580 } 581 582 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 583 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 584 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 585 } 586 587 /// Create a new Regex instance out of the string value in \p RpassArg. 588 /// It returns a pointer to the newly generated Regex instance. 589 static std::shared_ptr<llvm::Regex> 590 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 591 Arg *RpassArg) { 592 StringRef Val = RpassArg->getValue(); 593 std::string RegexError; 594 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 595 if (!Pattern->isValid(RegexError)) { 596 Diags.Report(diag::err_drv_optimization_remark_pattern) 597 << RegexError << RpassArg->getAsString(Args); 598 Pattern.reset(); 599 } 600 return Pattern; 601 } 602 603 static bool parseDiagnosticLevelMask(StringRef FlagName, 604 const std::vector<std::string> &Levels, 605 DiagnosticsEngine *Diags, 606 DiagnosticLevelMask &M) { 607 bool Success = true; 608 for (const auto &Level : Levels) { 609 DiagnosticLevelMask const PM = 610 llvm::StringSwitch<DiagnosticLevelMask>(Level) 611 .Case("note", DiagnosticLevelMask::Note) 612 .Case("remark", DiagnosticLevelMask::Remark) 613 .Case("warning", DiagnosticLevelMask::Warning) 614 .Case("error", DiagnosticLevelMask::Error) 615 .Default(DiagnosticLevelMask::None); 616 if (PM == DiagnosticLevelMask::None) { 617 Success = false; 618 if (Diags) 619 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 620 } 621 M = M | PM; 622 } 623 return Success; 624 } 625 626 static void parseSanitizerKinds(StringRef FlagName, 627 const std::vector<std::string> &Sanitizers, 628 DiagnosticsEngine &Diags, SanitizerSet &S) { 629 for (const auto &Sanitizer : Sanitizers) { 630 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 631 if (K == SanitizerMask()) 632 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 633 else 634 S.set(K, true); 635 } 636 } 637 638 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 639 ArgList &Args, DiagnosticsEngine &D, 640 XRayInstrSet &S) { 641 llvm::SmallVector<StringRef, 2> BundleParts; 642 llvm::SplitString(Bundle, BundleParts, ","); 643 for (const auto &B : BundleParts) { 644 auto Mask = parseXRayInstrValue(B); 645 if (Mask == XRayInstrKind::None) 646 if (B != "none") 647 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 648 else 649 S.Mask = Mask; 650 else if (Mask == XRayInstrKind::All) 651 S.Mask = Mask; 652 else 653 S.set(Mask, true); 654 } 655 } 656 657 // Set the profile kind for fprofile-instrument. 658 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 659 DiagnosticsEngine &Diags) { 660 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 661 if (A == nullptr) 662 return; 663 StringRef S = A->getValue(); 664 unsigned I = llvm::StringSwitch<unsigned>(S) 665 .Case("none", CodeGenOptions::ProfileNone) 666 .Case("clang", CodeGenOptions::ProfileClangInstr) 667 .Case("llvm", CodeGenOptions::ProfileIRInstr) 668 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 669 .Default(~0U); 670 if (I == ~0U) { 671 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 672 << S; 673 return; 674 } 675 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 676 Opts.setProfileInstr(Instrumentor); 677 } 678 679 // Set the profile kind using fprofile-instrument-use-path. 680 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 681 const Twine &ProfileName) { 682 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 683 // In error, return silently and let Clang PGOUse report the error message. 684 if (auto E = ReaderOrErr.takeError()) { 685 llvm::consumeError(std::move(E)); 686 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 687 return; 688 } 689 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 690 std::move(ReaderOrErr.get()); 691 if (PGOReader->isIRLevelProfile()) { 692 if (PGOReader->hasCSIRLevelProfile()) 693 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 694 else 695 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 696 } else 697 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 698 } 699 700 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 701 DiagnosticsEngine &Diags, 702 const TargetOptions &TargetOpts, 703 const FrontendOptions &FrontendOpts) { 704 bool Success = true; 705 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 706 707 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 708 // TODO: This could be done in Driver 709 unsigned MaxOptLevel = 3; 710 if (OptimizationLevel > MaxOptLevel) { 711 // If the optimization level is not supported, fall back on the default 712 // optimization 713 Diags.Report(diag::warn_drv_optimization_value) 714 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 715 OptimizationLevel = MaxOptLevel; 716 } 717 Opts.OptimizationLevel = OptimizationLevel; 718 719 // At O0 we want to fully disable inlining outside of cases marked with 720 // 'alwaysinline' that are required for correctness. 721 Opts.setInlining((Opts.OptimizationLevel == 0) 722 ? CodeGenOptions::OnlyAlwaysInlining 723 : CodeGenOptions::NormalInlining); 724 // Explicit inlining flags can disable some or all inlining even at 725 // optimization levels above zero. 726 if (Arg *InlineArg = Args.getLastArg( 727 options::OPT_finline_functions, options::OPT_finline_hint_functions, 728 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 729 if (Opts.OptimizationLevel > 0) { 730 const Option &InlineOpt = InlineArg->getOption(); 731 if (InlineOpt.matches(options::OPT_finline_functions)) 732 Opts.setInlining(CodeGenOptions::NormalInlining); 733 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 734 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 735 else 736 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 737 } 738 } 739 740 Opts.ExperimentalNewPassManager = Args.hasFlag( 741 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 742 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 743 744 Opts.DebugPassManager = 745 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 746 /* Default */ false); 747 748 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 749 StringRef Name = A->getValue(); 750 if (Name == "Accelerate") 751 Opts.setVecLib(CodeGenOptions::Accelerate); 752 else if (Name == "MASSV") 753 Opts.setVecLib(CodeGenOptions::MASSV); 754 else if (Name == "SVML") 755 Opts.setVecLib(CodeGenOptions::SVML); 756 else if (Name == "none") 757 Opts.setVecLib(CodeGenOptions::NoLibrary); 758 else 759 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 760 } 761 762 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 763 unsigned Val = 764 llvm::StringSwitch<unsigned>(A->getValue()) 765 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 766 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 767 .Case("constructor", codegenoptions::DebugInfoConstructor) 768 .Case("limited", codegenoptions::LimitedDebugInfo) 769 .Case("standalone", codegenoptions::FullDebugInfo) 770 .Default(~0U); 771 if (Val == ~0U) 772 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 773 << A->getValue(); 774 else 775 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 776 } 777 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 778 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 779 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 780 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 781 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 782 .Default(~0U); 783 if (Val == ~0U) 784 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 785 << A->getValue(); 786 else 787 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 788 } 789 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 790 Opts.DebugColumnInfo = !Args.hasArg(OPT_gno_column_info); 791 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 792 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 793 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 794 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 795 Opts.VirtualFunctionElimination = 796 Args.hasArg(OPT_fvirtual_function_elimination); 797 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 798 Opts.SplitDwarfFile = std::string(Args.getLastArgValue(OPT_split_dwarf_file)); 799 Opts.SplitDwarfOutput = 800 std::string(Args.getLastArgValue(OPT_split_dwarf_output)); 801 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 802 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 803 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 804 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 805 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 806 Opts.ForceDwarfFrameSection = Args.hasArg(OPT_fforce_dwarf_frame); 807 808 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 809 auto Split = StringRef(Arg).split('='); 810 Opts.DebugPrefixMap.insert( 811 {std::string(Split.first), std::string(Split.second)}); 812 } 813 814 if (const Arg *A = 815 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 816 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 817 818 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 819 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 820 821 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 822 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 823 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 824 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 825 826 llvm::Triple T(TargetOpts.Triple); 827 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 828 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 829 Opts.EmitCallSiteInfo = true; 830 831 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 832 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 833 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 834 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 835 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 836 OPT_fuse_register_sized_bitfield_access); 837 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 838 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 839 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 840 Args.hasArg(OPT_new_struct_path_tbaa); 841 Opts.FineGrainedBitfieldAccesses = 842 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 843 OPT_fno_fine_grained_bitfield_accesses, false); 844 Opts.DwarfDebugFlags = 845 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 846 Opts.RecordCommandLine = 847 std::string(Args.getLastArgValue(OPT_record_command_line)); 848 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 849 Opts.NoCommon = !Args.hasArg(OPT_fcommon); 850 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables); 851 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 852 Opts.OptimizeSize = getOptimizationLevelSize(Args); 853 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 854 Args.hasArg(OPT_ffreestanding)); 855 if (Opts.SimplifyLibCalls) 856 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 857 Opts.UnrollLoops = 858 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 859 (Opts.OptimizationLevel > 1)); 860 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 861 862 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 863 Opts.CallGraphProfile = !Opts.DisableIntegratedAS; 864 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 865 Opts.SampleProfileFile = 866 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 867 Opts.DebugInfoForProfiling = Args.hasFlag( 868 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 869 Opts.DebugNameTable = static_cast<unsigned>( 870 Args.hasArg(OPT_ggnu_pubnames) 871 ? llvm::DICompileUnit::DebugNameTableKind::GNU 872 : Args.hasArg(OPT_gpubnames) 873 ? llvm::DICompileUnit::DebugNameTableKind::Default 874 : llvm::DICompileUnit::DebugNameTableKind::None); 875 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 876 877 setPGOInstrumentor(Opts, Args, Diags); 878 Opts.InstrProfileOutput = 879 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 880 Opts.ProfileInstrumentUsePath = 881 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 882 if (!Opts.ProfileInstrumentUsePath.empty()) 883 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 884 Opts.ProfileRemappingFile = 885 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 886 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 887 Diags.Report(diag::err_drv_argument_only_allowed_with) 888 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 889 << "-fexperimental-new-pass-manager"; 890 } 891 892 Opts.CoverageMapping = 893 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 894 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 895 Opts.AsmVerbose = !Args.hasArg(OPT_fno_verbose_asm); 896 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 897 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 898 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 899 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 900 Opts.RegisterGlobalDtorsWithAtExit = 901 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 902 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 903 Opts.CodeModel = TargetOpts.CodeModel; 904 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 905 906 // Handle -mframe-pointer option. 907 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 908 CodeGenOptions::FramePointerKind FP; 909 StringRef Name = A->getValue(); 910 bool ValidFP = true; 911 if (Name == "none") 912 FP = CodeGenOptions::FramePointerKind::None; 913 else if (Name == "non-leaf") 914 FP = CodeGenOptions::FramePointerKind::NonLeaf; 915 else if (Name == "all") 916 FP = CodeGenOptions::FramePointerKind::All; 917 else { 918 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 919 Success = false; 920 ValidFP = false; 921 } 922 if (ValidFP) 923 Opts.setFramePointer(FP); 924 } 925 926 Opts.DisableFree = Args.hasArg(OPT_disable_free); 927 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 928 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 929 Opts.NoEscapingBlockTailCalls = 930 Args.hasArg(OPT_fno_escaping_block_tail_calls); 931 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 932 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 933 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 934 Args.hasArg(OPT_cl_fast_relaxed_math); 935 Opts.LimitFloatPrecision = 936 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 937 Opts.CorrectlyRoundedDivSqrt = 938 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 939 Opts.UniformWGSize = 940 Args.hasArg(OPT_cl_uniform_work_group_size); 941 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 942 Opts.StrictFloatCastOverflow = 943 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 944 945 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_fno_zero_initialized_in_bss); 946 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 947 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 948 Opts.SmallDataLimit = 949 getLastArgIntValue(Args, OPT_msmall_data_limit, 0, Diags); 950 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 951 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 952 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 953 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 954 Opts.IncrementalLinkerCompatible = 955 Args.hasArg(OPT_mincremental_linker_compatible); 956 Opts.PIECopyRelocations = 957 Args.hasArg(OPT_mpie_copy_relocations); 958 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 959 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 960 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 961 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 962 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 963 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 964 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 965 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 966 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 967 Opts.ThreadModel = 968 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 969 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 970 Diags.Report(diag::err_drv_invalid_value) 971 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 972 << Opts.ThreadModel; 973 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 974 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 975 976 Opts.BBSections = 977 std::string(Args.getLastArgValue(OPT_fbasic_block_sections_EQ, "none")); 978 979 // Basic Block Sections implies Function Sections. 980 Opts.FunctionSections = 981 Args.hasArg(OPT_ffunction_sections) || 982 (Opts.BBSections != "none" && Opts.BBSections != "labels"); 983 984 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 985 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 986 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 987 Opts.UniqueBasicBlockSectionNames = 988 Args.hasArg(OPT_funique_basic_block_section_names); 989 Opts.UniqueInternalLinkageNames = 990 Args.hasArg(OPT_funique_internal_linkage_names); 991 992 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 993 994 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 995 996 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 997 998 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 999 1000 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1001 Opts.PrepareForThinLTO = false; 1002 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1003 StringRef S = A->getValue(); 1004 if (S == "thin") 1005 Opts.PrepareForThinLTO = true; 1006 else if (S != "full") 1007 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1008 } 1009 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 1010 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 1011 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1012 if (IK.getLanguage() != Language::LLVM_IR) 1013 Diags.Report(diag::err_drv_argument_only_allowed_with) 1014 << A->getAsString(Args) << "-x ir"; 1015 Opts.ThinLTOIndexFile = 1016 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1017 } 1018 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1019 Opts.SaveTempsFilePrefix = 1020 llvm::StringSwitch<std::string>(A->getValue()) 1021 .Case("obj", FrontendOpts.OutputFile) 1022 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 1023 1024 Opts.ThinLinkBitcodeFile = 1025 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 1026 1027 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 1028 1029 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 1030 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 1031 1032 Opts.PreferVectorWidth = 1033 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1034 1035 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1036 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1037 1038 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1039 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1040 1041 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 1042 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1043 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1044 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1045 Opts.CoverageDataFile = 1046 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1047 Opts.CoverageNotesFile = 1048 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1049 Opts.ProfileFilterFiles = 1050 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1051 Opts.ProfileExcludeFiles = 1052 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1053 if (Args.hasArg(OPT_coverage_version_EQ)) { 1054 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1055 if (CoverageVersion.size() != 4) { 1056 Diags.Report(diag::err_drv_invalid_value) 1057 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1058 << CoverageVersion; 1059 } else { 1060 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1061 } 1062 } 1063 } 1064 // Handle -fembed-bitcode option. 1065 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1066 StringRef Name = A->getValue(); 1067 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1068 .Case("off", CodeGenOptions::Embed_Off) 1069 .Case("all", CodeGenOptions::Embed_All) 1070 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1071 .Case("marker", CodeGenOptions::Embed_Marker) 1072 .Default(~0U); 1073 if (Model == ~0U) { 1074 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1075 Success = false; 1076 } else 1077 Opts.setEmbedBitcode( 1078 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1079 } 1080 // FIXME: For backend options that are not yet recorded as function 1081 // attributes in the IR, keep track of them so we can embed them in a 1082 // separate data section and use them when building the bitcode. 1083 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1084 for (const auto &A : Args) { 1085 // Do not encode output and input. 1086 if (A->getOption().getID() == options::OPT_o || 1087 A->getOption().getID() == options::OPT_INPUT || 1088 A->getOption().getID() == options::OPT_x || 1089 A->getOption().getID() == options::OPT_fembed_bitcode || 1090 (A->getOption().getGroup().isValid() && 1091 A->getOption().getGroup().getID() == options::OPT_W_Group)) 1092 continue; 1093 ArgStringList ASL; 1094 A->render(Args, ASL); 1095 for (const auto &arg : ASL) { 1096 StringRef ArgStr(arg); 1097 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1098 // using \00 to separate each commandline options. 1099 Opts.CmdArgs.push_back('\0'); 1100 } 1101 } 1102 } 1103 1104 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1105 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1106 Opts.InstrumentFunctionsAfterInlining = 1107 Args.hasArg(OPT_finstrument_functions_after_inlining); 1108 Opts.InstrumentFunctionEntryBare = 1109 Args.hasArg(OPT_finstrument_function_entry_bare); 1110 1111 Opts.XRayInstrumentFunctions = 1112 Args.hasArg(OPT_fxray_instrument); 1113 Opts.XRayAlwaysEmitCustomEvents = 1114 Args.hasArg(OPT_fxray_always_emit_customevents); 1115 Opts.XRayAlwaysEmitTypedEvents = 1116 Args.hasArg(OPT_fxray_always_emit_typedevents); 1117 Opts.XRayInstructionThreshold = 1118 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1119 Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops); 1120 Opts.XRayOmitFunctionIndex = Args.hasArg(OPT_fno_xray_function_index); 1121 1122 auto XRayInstrBundles = 1123 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1124 if (XRayInstrBundles.empty()) 1125 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1126 else 1127 for (const auto &A : XRayInstrBundles) 1128 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1129 Diags, Opts.XRayInstrumentationBundle); 1130 1131 Opts.PatchableFunctionEntryCount = 1132 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1133 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1134 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1135 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1136 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1137 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1138 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1139 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1140 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1141 1142 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1143 StringRef Name = A->getValue(); 1144 if (Name == "full") { 1145 Opts.CFProtectionReturn = 1; 1146 Opts.CFProtectionBranch = 1; 1147 } else if (Name == "return") 1148 Opts.CFProtectionReturn = 1; 1149 else if (Name == "branch") 1150 Opts.CFProtectionBranch = 1; 1151 else if (Name != "none") { 1152 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1153 Success = false; 1154 } 1155 } 1156 1157 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1158 OPT_compress_debug_sections_EQ)) { 1159 if (A->getOption().getID() == OPT_compress_debug_sections) { 1160 // TODO: be more clever about the compression type auto-detection 1161 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1162 } else { 1163 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1164 .Case("none", llvm::DebugCompressionType::None) 1165 .Case("zlib", llvm::DebugCompressionType::Z) 1166 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1167 .Default(llvm::DebugCompressionType::None); 1168 Opts.setCompressDebugSections(DCT); 1169 } 1170 } 1171 1172 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1173 Opts.DebugCompilationDir = 1174 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1175 for (auto *A : 1176 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1177 CodeGenOptions::BitcodeFileToLink F; 1178 F.Filename = A->getValue(); 1179 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1180 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1181 // When linking CUDA bitcode, propagate function attributes so that 1182 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1183 F.PropagateAttrs = true; 1184 F.Internalize = true; 1185 } 1186 Opts.LinkBitcodeFiles.push_back(F); 1187 } 1188 Opts.SanitizeCoverageType = 1189 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1190 Opts.SanitizeCoverageIndirectCalls = 1191 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1192 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1193 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1194 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1195 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1196 Opts.SanitizeCoverage8bitCounters = 1197 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1198 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1199 Opts.SanitizeCoverageTracePCGuard = 1200 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1201 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1202 Opts.SanitizeCoverageInline8bitCounters = 1203 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1204 Opts.SanitizeCoverageInlineBoolFlag = 1205 Args.hasArg(OPT_fsanitize_coverage_inline_bool_flag); 1206 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1207 Opts.SanitizeCoverageStackDepth = 1208 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1209 Opts.SanitizeCoverageAllowlistFiles = 1210 Args.getAllArgValues(OPT_fsanitize_coverage_allowlist); 1211 Opts.SanitizeCoverageBlocklistFiles = 1212 Args.getAllArgValues(OPT_fsanitize_coverage_blocklist); 1213 Opts.SanitizeMemoryTrackOrigins = 1214 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1215 Opts.SanitizeMemoryUseAfterDtor = 1216 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1217 OPT_fno_sanitize_memory_use_after_dtor, 1218 false); 1219 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1220 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1221 Opts.SanitizeCfiICallGeneralizePointers = 1222 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1223 Opts.SanitizeCfiCanonicalJumpTables = 1224 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1225 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1226 if (Arg *A = Args.getLastArg( 1227 OPT_fsanitize_address_poison_custom_array_cookie, 1228 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1229 Opts.SanitizeAddressPoisonCustomArrayCookie = 1230 A->getOption().getID() == 1231 OPT_fsanitize_address_poison_custom_array_cookie; 1232 } 1233 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1234 OPT_fno_sanitize_address_use_after_scope)) { 1235 Opts.SanitizeAddressUseAfterScope = 1236 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1237 } 1238 Opts.SanitizeAddressGlobalsDeadStripping = 1239 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1240 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1241 OPT_fno_sanitize_address_use_odr_indicator)) { 1242 Opts.SanitizeAddressUseOdrIndicator = 1243 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1244 } 1245 Opts.SSPBufferSize = 1246 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1247 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1248 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1249 StringRef Val = A->getValue(); 1250 unsigned StackAlignment = Opts.StackAlignment; 1251 Val.getAsInteger(10, StackAlignment); 1252 Opts.StackAlignment = StackAlignment; 1253 } 1254 1255 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1256 StringRef Val = A->getValue(); 1257 unsigned StackProbeSize = Opts.StackProbeSize; 1258 Val.getAsInteger(0, StackProbeSize); 1259 Opts.StackProbeSize = StackProbeSize; 1260 } 1261 1262 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1263 1264 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1265 1266 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1267 StringRef Name = A->getValue(); 1268 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1269 .Case("legacy", CodeGenOptions::Legacy) 1270 .Case("non-legacy", CodeGenOptions::NonLegacy) 1271 .Case("mixed", CodeGenOptions::Mixed) 1272 .Default(~0U); 1273 if (Method == ~0U) { 1274 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1275 Success = false; 1276 } else { 1277 Opts.setObjCDispatchMethod( 1278 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1279 } 1280 } 1281 1282 1283 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1284 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1285 1286 if (Args.getLastArg(OPT_femulated_tls) || 1287 Args.getLastArg(OPT_fno_emulated_tls)) { 1288 Opts.ExplicitEmulatedTLS = true; 1289 Opts.EmulatedTLS = 1290 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1291 } 1292 1293 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1294 StringRef Name = A->getValue(); 1295 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1296 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1297 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1298 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1299 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1300 .Default(~0U); 1301 if (Model == ~0U) { 1302 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1303 Success = false; 1304 } else { 1305 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1306 } 1307 } 1308 1309 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1310 1311 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1312 StringRef Val = A->getValue(); 1313 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1314 if (!Opts.FPDenormalMode.isValid()) 1315 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1316 } 1317 1318 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1319 StringRef Val = A->getValue(); 1320 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1321 if (!Opts.FP32DenormalMode.isValid()) 1322 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1323 } 1324 1325 // X86_32 has -fppc-struct-return and -freg-struct-return. 1326 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1327 if (Arg *A = 1328 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1329 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1330 // TODO: We might want to consider enabling these options on AIX in the 1331 // future. 1332 if (T.isOSAIX()) 1333 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1334 << A->getSpelling() << T.str(); 1335 1336 const Option &O = A->getOption(); 1337 if (O.matches(OPT_fpcc_struct_return) || 1338 O.matches(OPT_maix_struct_return)) { 1339 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1340 } else { 1341 assert(O.matches(OPT_freg_struct_return) || 1342 O.matches(OPT_msvr4_struct_return)); 1343 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1344 } 1345 } 1346 1347 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1348 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1349 bool NeedLocTracking = false; 1350 1351 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1352 if (!Opts.OptRecordFile.empty()) 1353 NeedLocTracking = true; 1354 1355 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1356 Opts.OptRecordPasses = A->getValue(); 1357 NeedLocTracking = true; 1358 } 1359 1360 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1361 Opts.OptRecordFormat = A->getValue(); 1362 NeedLocTracking = true; 1363 } 1364 1365 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1366 Opts.OptimizationRemarkPattern = 1367 GenerateOptimizationRemarkRegex(Diags, Args, A); 1368 NeedLocTracking = true; 1369 } 1370 1371 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1372 Opts.OptimizationRemarkMissedPattern = 1373 GenerateOptimizationRemarkRegex(Diags, Args, A); 1374 NeedLocTracking = true; 1375 } 1376 1377 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1378 Opts.OptimizationRemarkAnalysisPattern = 1379 GenerateOptimizationRemarkRegex(Diags, Args, A); 1380 NeedLocTracking = true; 1381 } 1382 1383 Opts.DiagnosticsWithHotness = 1384 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1385 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1386 bool UsingProfile = UsingSampleProfile || 1387 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1388 1389 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1390 // An IR file will contain PGO as metadata 1391 IK.getLanguage() != Language::LLVM_IR) 1392 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1393 << "-fdiagnostics-show-hotness"; 1394 1395 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1396 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1397 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1398 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1399 << "-fdiagnostics-hotness-threshold="; 1400 1401 // If the user requested to use a sample profile for PGO, then the 1402 // backend will need to track source location information so the profile 1403 // can be incorporated into the IR. 1404 if (UsingSampleProfile) 1405 NeedLocTracking = true; 1406 1407 // If the user requested a flag that requires source locations available in 1408 // the backend, make sure that the backend tracks source location information. 1409 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1410 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1411 1412 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1413 1414 // Parse -fsanitize-recover= arguments. 1415 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1416 parseSanitizerKinds("-fsanitize-recover=", 1417 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1418 Opts.SanitizeRecover); 1419 parseSanitizerKinds("-fsanitize-trap=", 1420 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1421 Opts.SanitizeTrap); 1422 1423 Opts.CudaGpuBinaryFileName = 1424 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1425 1426 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1427 1428 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1429 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1430 1431 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1432 1433 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1434 1435 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1436 1437 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1438 1439 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1440 1441 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1442 1443 Opts.SymbolPartition = 1444 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1445 1446 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1447 return Success; 1448 } 1449 1450 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1451 ArgList &Args) { 1452 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1453 Opts.Targets = Args.getAllArgValues(OPT_MT); 1454 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1455 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1456 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1457 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1458 Opts.HeaderIncludeOutputFile = 1459 std::string(Args.getLastArgValue(OPT_header_include_file)); 1460 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1461 if (Args.hasArg(OPT_show_includes)) { 1462 // Writing both /showIncludes and preprocessor output to stdout 1463 // would produce interleaved output, so use stderr for /showIncludes. 1464 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1465 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1466 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1467 else 1468 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1469 } else { 1470 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1471 } 1472 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1473 Opts.ModuleDependencyOutputDir = 1474 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1475 if (Args.hasArg(OPT_MV)) 1476 Opts.OutputFormat = DependencyOutputFormat::NMake; 1477 // Add sanitizer blacklists as extra dependencies. 1478 // They won't be discovered by the regular preprocessor, so 1479 // we let make / ninja to know about this implicit dependency. 1480 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1481 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1482 StringRef Val = A->getValue(); 1483 if (Val.find('=') == StringRef::npos) 1484 Opts.ExtraDeps.push_back(std::string(Val)); 1485 } 1486 if (Opts.IncludeSystemHeaders) { 1487 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1488 StringRef Val = A->getValue(); 1489 if (Val.find('=') == StringRef::npos) 1490 Opts.ExtraDeps.push_back(std::string(Val)); 1491 } 1492 } 1493 } 1494 1495 // Propagate the extra dependencies. 1496 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1497 Opts.ExtraDeps.push_back(A->getValue()); 1498 } 1499 1500 // Only the -fmodule-file=<file> form. 1501 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1502 StringRef Val = A->getValue(); 1503 if (Val.find('=') == StringRef::npos) 1504 Opts.ExtraDeps.push_back(std::string(Val)); 1505 } 1506 } 1507 1508 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1509 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1510 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1511 // Support both clang's -f[no-]color-diagnostics and gcc's 1512 // -f[no-]diagnostics-colors[=never|always|auto]. 1513 enum { 1514 Colors_On, 1515 Colors_Off, 1516 Colors_Auto 1517 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1518 for (auto *A : Args) { 1519 const Option &O = A->getOption(); 1520 if (O.matches(options::OPT_fcolor_diagnostics) || 1521 O.matches(options::OPT_fdiagnostics_color)) { 1522 ShowColors = Colors_On; 1523 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1524 O.matches(options::OPT_fno_diagnostics_color)) { 1525 ShowColors = Colors_Off; 1526 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1527 StringRef Value(A->getValue()); 1528 if (Value == "always") 1529 ShowColors = Colors_On; 1530 else if (Value == "never") 1531 ShowColors = Colors_Off; 1532 else if (Value == "auto") 1533 ShowColors = Colors_Auto; 1534 } 1535 } 1536 return ShowColors == Colors_On || 1537 (ShowColors == Colors_Auto && 1538 llvm::sys::Process::StandardErrHasColors()); 1539 } 1540 1541 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1542 DiagnosticsEngine *Diags) { 1543 bool Success = true; 1544 for (const auto &Prefix : VerifyPrefixes) { 1545 // Every prefix must start with a letter and contain only alphanumeric 1546 // characters, hyphens, and underscores. 1547 auto BadChar = llvm::find_if(Prefix, [](char C) { 1548 return !isAlphanumeric(C) && C != '-' && C != '_'; 1549 }); 1550 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1551 Success = false; 1552 if (Diags) { 1553 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1554 Diags->Report(diag::note_drv_verify_prefix_spelling); 1555 } 1556 } 1557 } 1558 return Success; 1559 } 1560 1561 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1562 DiagnosticsEngine *Diags, 1563 bool DefaultDiagColor) { 1564 bool Success = true; 1565 1566 Opts.DiagnosticLogFile = 1567 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1568 if (Arg *A = 1569 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1570 Opts.DiagnosticSerializationFile = A->getValue(); 1571 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1572 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1573 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1574 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1575 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1576 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1577 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1578 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1579 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1580 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1581 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1582 1583 // Default behavior is to not to show note include stacks. 1584 Opts.ShowNoteIncludeStack = false; 1585 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1586 OPT_fno_diagnostics_show_note_include_stack)) 1587 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1588 Opts.ShowNoteIncludeStack = true; 1589 1590 StringRef ShowOverloads = 1591 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1592 if (ShowOverloads == "best") 1593 Opts.setShowOverloads(Ovl_Best); 1594 else if (ShowOverloads == "all") 1595 Opts.setShowOverloads(Ovl_All); 1596 else { 1597 Success = false; 1598 if (Diags) 1599 Diags->Report(diag::err_drv_invalid_value) 1600 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1601 << ShowOverloads; 1602 } 1603 1604 StringRef ShowCategory = 1605 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1606 if (ShowCategory == "none") 1607 Opts.ShowCategories = 0; 1608 else if (ShowCategory == "id") 1609 Opts.ShowCategories = 1; 1610 else if (ShowCategory == "name") 1611 Opts.ShowCategories = 2; 1612 else { 1613 Success = false; 1614 if (Diags) 1615 Diags->Report(diag::err_drv_invalid_value) 1616 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1617 << ShowCategory; 1618 } 1619 1620 StringRef Format = 1621 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1622 if (Format == "clang") 1623 Opts.setFormat(DiagnosticOptions::Clang); 1624 else if (Format == "msvc") 1625 Opts.setFormat(DiagnosticOptions::MSVC); 1626 else if (Format == "msvc-fallback") { 1627 Opts.setFormat(DiagnosticOptions::MSVC); 1628 Opts.CLFallbackMode = true; 1629 } else if (Format == "vi") 1630 Opts.setFormat(DiagnosticOptions::Vi); 1631 else { 1632 Success = false; 1633 if (Diags) 1634 Diags->Report(diag::err_drv_invalid_value) 1635 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1636 << Format; 1637 } 1638 1639 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1640 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1641 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1642 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1643 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1644 if (Args.hasArg(OPT_verify)) 1645 Opts.VerifyPrefixes.push_back("expected"); 1646 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1647 // then sort it to prepare for fast lookup using std::binary_search. 1648 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1649 Opts.VerifyDiagnostics = false; 1650 Success = false; 1651 } 1652 else 1653 llvm::sort(Opts.VerifyPrefixes); 1654 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1655 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1656 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1657 Diags, DiagMask); 1658 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1659 DiagMask = DiagnosticLevelMask::All; 1660 Opts.setVerifyIgnoreUnexpected(DiagMask); 1661 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1662 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1663 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1664 Opts.MacroBacktraceLimit = 1665 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1666 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1667 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1668 Args, OPT_ftemplate_backtrace_limit, 1669 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1670 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1671 Args, OPT_fconstexpr_backtrace_limit, 1672 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1673 Opts.SpellCheckingLimit = getLastArgIntValue( 1674 Args, OPT_fspell_checking_limit, 1675 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1676 Opts.SnippetLineLimit = getLastArgIntValue( 1677 Args, OPT_fcaret_diagnostics_max_lines, 1678 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1679 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1680 DiagnosticOptions::DefaultTabStop, Diags); 1681 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1682 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1683 if (Diags) 1684 Diags->Report(diag::warn_ignoring_ftabstop_value) 1685 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1686 } 1687 Opts.MessageLength = 1688 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1689 1690 Opts.UndefPrefixes = Args.getAllArgValues(OPT_Wundef_prefix_EQ); 1691 1692 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1693 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1694 1695 return Success; 1696 } 1697 1698 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1699 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1700 } 1701 1702 /// Parse the argument to the -ftest-module-file-extension 1703 /// command-line argument. 1704 /// 1705 /// \returns true on error, false on success. 1706 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1707 std::string &BlockName, 1708 unsigned &MajorVersion, 1709 unsigned &MinorVersion, 1710 bool &Hashed, 1711 std::string &UserInfo) { 1712 SmallVector<StringRef, 5> Args; 1713 Arg.split(Args, ':', 5); 1714 if (Args.size() < 5) 1715 return true; 1716 1717 BlockName = std::string(Args[0]); 1718 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1719 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1720 if (Args[3].getAsInteger(2, Hashed)) return true; 1721 if (Args.size() > 4) 1722 UserInfo = std::string(Args[4]); 1723 return false; 1724 } 1725 1726 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1727 DiagnosticsEngine &Diags, 1728 bool &IsHeaderFile) { 1729 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1730 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1731 switch (A->getOption().getID()) { 1732 default: 1733 llvm_unreachable("Invalid option in group!"); 1734 case OPT_ast_list: 1735 Opts.ProgramAction = frontend::ASTDeclList; break; 1736 case OPT_ast_dump_all_EQ: 1737 case OPT_ast_dump_EQ: { 1738 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1739 .CaseLower("default", ADOF_Default) 1740 .CaseLower("json", ADOF_JSON) 1741 .Default(std::numeric_limits<unsigned>::max()); 1742 1743 if (Val != std::numeric_limits<unsigned>::max()) 1744 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1745 else { 1746 Diags.Report(diag::err_drv_invalid_value) 1747 << A->getAsString(Args) << A->getValue(); 1748 Opts.ASTDumpFormat = ADOF_Default; 1749 } 1750 LLVM_FALLTHROUGH; 1751 } 1752 case OPT_ast_dump: 1753 case OPT_ast_dump_all: 1754 case OPT_ast_dump_lookups: 1755 case OPT_ast_dump_decl_types: 1756 Opts.ProgramAction = frontend::ASTDump; break; 1757 case OPT_ast_print: 1758 Opts.ProgramAction = frontend::ASTPrint; break; 1759 case OPT_ast_view: 1760 Opts.ProgramAction = frontend::ASTView; break; 1761 case OPT_compiler_options_dump: 1762 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1763 case OPT_dump_raw_tokens: 1764 Opts.ProgramAction = frontend::DumpRawTokens; break; 1765 case OPT_dump_tokens: 1766 Opts.ProgramAction = frontend::DumpTokens; break; 1767 case OPT_S: 1768 Opts.ProgramAction = frontend::EmitAssembly; break; 1769 case OPT_emit_llvm_bc: 1770 Opts.ProgramAction = frontend::EmitBC; break; 1771 case OPT_emit_html: 1772 Opts.ProgramAction = frontend::EmitHTML; break; 1773 case OPT_emit_llvm: 1774 Opts.ProgramAction = frontend::EmitLLVM; break; 1775 case OPT_emit_llvm_only: 1776 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1777 case OPT_emit_codegen_only: 1778 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1779 case OPT_emit_obj: 1780 Opts.ProgramAction = frontend::EmitObj; break; 1781 case OPT_fixit_EQ: 1782 Opts.FixItSuffix = A->getValue(); 1783 LLVM_FALLTHROUGH; 1784 case OPT_fixit: 1785 Opts.ProgramAction = frontend::FixIt; break; 1786 case OPT_emit_module: 1787 Opts.ProgramAction = frontend::GenerateModule; break; 1788 case OPT_emit_module_interface: 1789 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1790 case OPT_emit_header_module: 1791 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1792 case OPT_emit_pch: 1793 Opts.ProgramAction = frontend::GeneratePCH; break; 1794 case OPT_emit_interface_stubs: { 1795 StringRef ArgStr = 1796 Args.hasArg(OPT_interface_stub_version_EQ) 1797 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1798 : "experimental-ifs-v2"; 1799 if (ArgStr == "experimental-yaml-elf-v1" || 1800 ArgStr == "experimental-ifs-v1" || 1801 ArgStr == "experimental-tapi-elf-v1") { 1802 std::string ErrorMessage = 1803 "Invalid interface stub format: " + ArgStr.str() + 1804 " is deprecated."; 1805 Diags.Report(diag::err_drv_invalid_value) 1806 << "Must specify a valid interface stub format type, ie: " 1807 "-interface-stub-version=experimental-ifs-v2" 1808 << ErrorMessage; 1809 } else if (!ArgStr.startswith("experimental-ifs-")) { 1810 std::string ErrorMessage = 1811 "Invalid interface stub format: " + ArgStr.str() + "."; 1812 Diags.Report(diag::err_drv_invalid_value) 1813 << "Must specify a valid interface stub format type, ie: " 1814 "-interface-stub-version=experimental-ifs-v2" 1815 << ErrorMessage; 1816 } else { 1817 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1818 } 1819 break; 1820 } 1821 case OPT_init_only: 1822 Opts.ProgramAction = frontend::InitOnly; break; 1823 case OPT_fsyntax_only: 1824 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1825 case OPT_module_file_info: 1826 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1827 case OPT_verify_pch: 1828 Opts.ProgramAction = frontend::VerifyPCH; break; 1829 case OPT_print_preamble: 1830 Opts.ProgramAction = frontend::PrintPreamble; break; 1831 case OPT_E: 1832 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1833 case OPT_templight_dump: 1834 Opts.ProgramAction = frontend::TemplightDump; break; 1835 case OPT_rewrite_macros: 1836 Opts.ProgramAction = frontend::RewriteMacros; break; 1837 case OPT_rewrite_objc: 1838 Opts.ProgramAction = frontend::RewriteObjC; break; 1839 case OPT_rewrite_test: 1840 Opts.ProgramAction = frontend::RewriteTest; break; 1841 case OPT_analyze: 1842 Opts.ProgramAction = frontend::RunAnalysis; break; 1843 case OPT_migrate: 1844 Opts.ProgramAction = frontend::MigrateSource; break; 1845 case OPT_Eonly: 1846 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1847 case OPT_print_dependency_directives_minimized_source: 1848 Opts.ProgramAction = 1849 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1850 break; 1851 } 1852 } 1853 1854 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1855 Opts.Plugins.emplace_back(A->getValue(0)); 1856 Opts.ProgramAction = frontend::PluginAction; 1857 Opts.ActionName = A->getValue(); 1858 } 1859 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1860 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1861 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1862 1863 for (const std::string &Arg : 1864 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1865 std::string BlockName; 1866 unsigned MajorVersion; 1867 unsigned MinorVersion; 1868 bool Hashed; 1869 std::string UserInfo; 1870 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1871 MinorVersion, Hashed, UserInfo)) { 1872 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1873 1874 continue; 1875 } 1876 1877 // Add the testing module file extension. 1878 Opts.ModuleFileExtensions.push_back( 1879 std::make_shared<TestModuleFileExtension>( 1880 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1881 } 1882 1883 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1884 Opts.CodeCompletionAt = 1885 ParsedSourceLocation::FromString(A->getValue()); 1886 if (Opts.CodeCompletionAt.FileName.empty()) 1887 Diags.Report(diag::err_drv_invalid_value) 1888 << A->getAsString(Args) << A->getValue(); 1889 } 1890 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1891 1892 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1893 Opts.Plugins = Args.getAllArgValues(OPT_load); 1894 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1895 Opts.ShowHelp = Args.hasArg(OPT_help); 1896 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1897 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1898 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1899 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1900 Opts.TimeTraceGranularity = getLastArgIntValue( 1901 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1902 Opts.ShowVersion = Args.hasArg(OPT_version); 1903 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1904 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1905 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1906 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1907 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1908 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1909 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1910 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1911 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1912 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1913 Opts.ASTDumpDeclTypes = Args.hasArg(OPT_ast_dump_decl_types); 1914 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1915 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1916 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1917 // Only the -fmodule-file=<file> form. 1918 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1919 StringRef Val = A->getValue(); 1920 if (Val.find('=') == StringRef::npos) 1921 Opts.ModuleFiles.push_back(std::string(Val)); 1922 } 1923 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1924 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1925 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1926 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1927 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 1928 1929 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1930 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1931 << "-emit-module"; 1932 1933 Opts.CodeCompleteOpts.IncludeMacros 1934 = Args.hasArg(OPT_code_completion_macros); 1935 Opts.CodeCompleteOpts.IncludeCodePatterns 1936 = Args.hasArg(OPT_code_completion_patterns); 1937 Opts.CodeCompleteOpts.IncludeGlobals 1938 = !Args.hasArg(OPT_no_code_completion_globals); 1939 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1940 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1941 Opts.CodeCompleteOpts.IncludeBriefComments 1942 = Args.hasArg(OPT_code_completion_brief_comments); 1943 Opts.CodeCompleteOpts.IncludeFixIts 1944 = Args.hasArg(OPT_code_completion_with_fixits); 1945 1946 Opts.OverrideRecordLayoutsFile = 1947 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1948 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1949 if (Args.hasArg(OPT_aux_target_cpu)) 1950 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1951 if (Args.hasArg(OPT_aux_target_feature)) 1952 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1953 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1954 1955 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1956 OPT_arcmt_modify, 1957 OPT_arcmt_migrate)) { 1958 switch (A->getOption().getID()) { 1959 default: 1960 llvm_unreachable("missed a case"); 1961 case OPT_arcmt_check: 1962 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1963 break; 1964 case OPT_arcmt_modify: 1965 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1966 break; 1967 case OPT_arcmt_migrate: 1968 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1969 break; 1970 } 1971 } 1972 Opts.MTMigrateDir = 1973 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1974 Opts.ARCMTMigrateReportOut = 1975 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1976 Opts.ARCMTMigrateEmitARCErrors 1977 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1978 1979 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1980 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1981 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1982 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1983 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1984 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1985 if (Args.hasArg(OPT_objcmt_migrate_property)) 1986 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1987 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1988 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1989 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1990 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1991 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1992 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1993 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1994 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1995 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1996 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1997 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1998 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1999 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 2000 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 2001 if (Args.hasArg(OPT_objcmt_atomic_property)) 2002 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 2003 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 2004 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 2005 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 2006 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 2007 if (Args.hasArg(OPT_objcmt_migrate_all)) 2008 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 2009 2010 Opts.ObjCMTWhiteListPath = 2011 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 2012 2013 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2014 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2015 Diags.Report(diag::err_drv_argument_not_allowed_with) 2016 << "ARC migration" << "ObjC migration"; 2017 } 2018 2019 InputKind DashX(Language::Unknown); 2020 if (const Arg *A = Args.getLastArg(OPT_x)) { 2021 StringRef XValue = A->getValue(); 2022 2023 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2024 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2025 bool Preprocessed = XValue.consume_back("-cpp-output"); 2026 bool ModuleMap = XValue.consume_back("-module-map"); 2027 IsHeaderFile = 2028 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 2029 2030 // Principal languages. 2031 DashX = llvm::StringSwitch<InputKind>(XValue) 2032 .Case("c", Language::C) 2033 .Case("cl", Language::OpenCL) 2034 .Case("cuda", Language::CUDA) 2035 .Case("hip", Language::HIP) 2036 .Case("c++", Language::CXX) 2037 .Case("objective-c", Language::ObjC) 2038 .Case("objective-c++", Language::ObjCXX) 2039 .Case("renderscript", Language::RenderScript) 2040 .Default(Language::Unknown); 2041 2042 // "objc[++]-cpp-output" is an acceptable synonym for 2043 // "objective-c[++]-cpp-output". 2044 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2045 DashX = llvm::StringSwitch<InputKind>(XValue) 2046 .Case("objc", Language::ObjC) 2047 .Case("objc++", Language::ObjCXX) 2048 .Default(Language::Unknown); 2049 2050 // Some special cases cannot be combined with suffixes. 2051 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2052 DashX = llvm::StringSwitch<InputKind>(XValue) 2053 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2054 .Case("assembler-with-cpp", Language::Asm) 2055 .Cases("ast", "pcm", 2056 InputKind(Language::Unknown, InputKind::Precompiled)) 2057 .Case("ir", Language::LLVM_IR) 2058 .Default(Language::Unknown); 2059 2060 if (DashX.isUnknown()) 2061 Diags.Report(diag::err_drv_invalid_value) 2062 << A->getAsString(Args) << A->getValue(); 2063 2064 if (Preprocessed) 2065 DashX = DashX.getPreprocessed(); 2066 if (ModuleMap) 2067 DashX = DashX.withFormat(InputKind::ModuleMap); 2068 } 2069 2070 // '-' is the default input if none is given. 2071 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2072 Opts.Inputs.clear(); 2073 if (Inputs.empty()) 2074 Inputs.push_back("-"); 2075 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2076 InputKind IK = DashX; 2077 if (IK.isUnknown()) { 2078 IK = FrontendOptions::getInputKindForExtension( 2079 StringRef(Inputs[i]).rsplit('.').second); 2080 // FIXME: Warn on this? 2081 if (IK.isUnknown()) 2082 IK = Language::C; 2083 // FIXME: Remove this hack. 2084 if (i == 0) 2085 DashX = IK; 2086 } 2087 2088 bool IsSystem = false; 2089 2090 // The -emit-module action implicitly takes a module map. 2091 if (Opts.ProgramAction == frontend::GenerateModule && 2092 IK.getFormat() == InputKind::Source) { 2093 IK = IK.withFormat(InputKind::ModuleMap); 2094 IsSystem = Opts.IsSystemModule; 2095 } 2096 2097 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2098 } 2099 2100 return DashX; 2101 } 2102 2103 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2104 void *MainAddr) { 2105 std::string ClangExecutable = 2106 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2107 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2108 } 2109 2110 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2111 const std::string &WorkingDir) { 2112 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2113 Opts.Verbose = Args.hasArg(OPT_v); 2114 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2115 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2116 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2117 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2118 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2119 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2120 2121 // Canonicalize -fmodules-cache-path before storing it. 2122 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2123 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2124 if (WorkingDir.empty()) 2125 llvm::sys::fs::make_absolute(P); 2126 else 2127 llvm::sys::fs::make_absolute(WorkingDir, P); 2128 } 2129 llvm::sys::path::remove_dots(P); 2130 Opts.ModuleCachePath = std::string(P.str()); 2131 2132 Opts.ModuleUserBuildPath = 2133 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2134 // Only the -fmodule-file=<name>=<file> form. 2135 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2136 StringRef Val = A->getValue(); 2137 if (Val.find('=') != StringRef::npos){ 2138 auto Split = Val.split('='); 2139 Opts.PrebuiltModuleFiles.insert( 2140 {std::string(Split.first), std::string(Split.second)}); 2141 } 2142 } 2143 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2144 Opts.AddPrebuiltModulePath(A->getValue()); 2145 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2146 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2147 Opts.ModulesValidateDiagnosticOptions = 2148 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2149 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2150 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2151 Opts.ModuleCachePruneInterval = 2152 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2153 Opts.ModuleCachePruneAfter = 2154 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2155 Opts.ModulesValidateOncePerBuildSession = 2156 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2157 Opts.BuildSessionTimestamp = 2158 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2159 Opts.ModulesValidateSystemHeaders = 2160 Args.hasArg(OPT_fmodules_validate_system_headers); 2161 Opts.ValidateASTInputFilesContent = 2162 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2163 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2164 Opts.ModuleFormat = A->getValue(); 2165 2166 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2167 StringRef MacroDef = A->getValue(); 2168 Opts.ModulesIgnoreMacros.insert( 2169 llvm::CachedHashString(MacroDef.split('=').first)); 2170 } 2171 2172 // Add -I..., -F..., and -index-header-map options in order. 2173 bool IsIndexHeaderMap = false; 2174 bool IsSysrootSpecified = 2175 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2176 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2177 if (A->getOption().matches(OPT_index_header_map)) { 2178 // -index-header-map applies to the next -I or -F. 2179 IsIndexHeaderMap = true; 2180 continue; 2181 } 2182 2183 frontend::IncludeDirGroup Group = 2184 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2185 2186 bool IsFramework = A->getOption().matches(OPT_F); 2187 std::string Path = A->getValue(); 2188 2189 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2190 SmallString<32> Buffer; 2191 llvm::sys::path::append(Buffer, Opts.Sysroot, 2192 llvm::StringRef(A->getValue()).substr(1)); 2193 Path = std::string(Buffer.str()); 2194 } 2195 2196 Opts.AddPath(Path, Group, IsFramework, 2197 /*IgnoreSysroot*/ true); 2198 IsIndexHeaderMap = false; 2199 } 2200 2201 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2202 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2203 for (const auto *A : 2204 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2205 if (A->getOption().matches(OPT_iprefix)) 2206 Prefix = A->getValue(); 2207 else if (A->getOption().matches(OPT_iwithprefix)) 2208 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2209 else 2210 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2211 } 2212 2213 for (const auto *A : Args.filtered(OPT_idirafter)) 2214 Opts.AddPath(A->getValue(), frontend::After, false, true); 2215 for (const auto *A : Args.filtered(OPT_iquote)) 2216 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2217 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2218 Opts.AddPath(A->getValue(), frontend::System, false, 2219 !A->getOption().matches(OPT_iwithsysroot)); 2220 for (const auto *A : Args.filtered(OPT_iframework)) 2221 Opts.AddPath(A->getValue(), frontend::System, true, true); 2222 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2223 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2224 /*IgnoreSysRoot=*/false); 2225 2226 // Add the paths for the various language specific isystem flags. 2227 for (const auto *A : Args.filtered(OPT_c_isystem)) 2228 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2229 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2230 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2231 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2232 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2233 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2234 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2235 2236 // Add the internal paths from a driver that detects standard include paths. 2237 for (const auto *A : 2238 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2239 frontend::IncludeDirGroup Group = frontend::System; 2240 if (A->getOption().matches(OPT_internal_externc_isystem)) 2241 Group = frontend::ExternCSystem; 2242 Opts.AddPath(A->getValue(), Group, false, true); 2243 } 2244 2245 // Add the path prefixes which are implicitly treated as being system headers. 2246 for (const auto *A : 2247 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2248 Opts.AddSystemHeaderPrefix( 2249 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2250 2251 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2252 Opts.AddVFSOverlayFile(A->getValue()); 2253 } 2254 2255 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2256 const llvm::Triple &T, 2257 PreprocessorOptions &PPOpts, 2258 LangStandard::Kind LangStd) { 2259 // Set some properties which depend solely on the input kind; it would be nice 2260 // to move these to the language standard, and have the driver resolve the 2261 // input kind + language standard. 2262 // 2263 // FIXME: Perhaps a better model would be for a single source file to have 2264 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2265 // simultaneously active? 2266 if (IK.getLanguage() == Language::Asm) { 2267 Opts.AsmPreprocessor = 1; 2268 } else if (IK.isObjectiveC()) { 2269 Opts.ObjC = 1; 2270 } 2271 2272 if (LangStd == LangStandard::lang_unspecified) { 2273 // Based on the base language, pick one. 2274 switch (IK.getLanguage()) { 2275 case Language::Unknown: 2276 case Language::LLVM_IR: 2277 llvm_unreachable("Invalid input kind!"); 2278 case Language::OpenCL: 2279 LangStd = LangStandard::lang_opencl10; 2280 break; 2281 case Language::CUDA: 2282 LangStd = LangStandard::lang_cuda; 2283 break; 2284 case Language::Asm: 2285 case Language::C: 2286 #if defined(CLANG_DEFAULT_STD_C) 2287 LangStd = CLANG_DEFAULT_STD_C; 2288 #else 2289 // The PS4 uses C99 as the default C standard. 2290 if (T.isPS4()) 2291 LangStd = LangStandard::lang_gnu99; 2292 else 2293 LangStd = LangStandard::lang_gnu17; 2294 #endif 2295 break; 2296 case Language::ObjC: 2297 #if defined(CLANG_DEFAULT_STD_C) 2298 LangStd = CLANG_DEFAULT_STD_C; 2299 #else 2300 LangStd = LangStandard::lang_gnu11; 2301 #endif 2302 break; 2303 case Language::CXX: 2304 case Language::ObjCXX: 2305 #if defined(CLANG_DEFAULT_STD_CXX) 2306 LangStd = CLANG_DEFAULT_STD_CXX; 2307 #else 2308 LangStd = LangStandard::lang_gnucxx14; 2309 #endif 2310 break; 2311 case Language::RenderScript: 2312 LangStd = LangStandard::lang_c99; 2313 break; 2314 case Language::HIP: 2315 LangStd = LangStandard::lang_hip; 2316 break; 2317 } 2318 } 2319 2320 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2321 Opts.LineComment = Std.hasLineComments(); 2322 Opts.C99 = Std.isC99(); 2323 Opts.C11 = Std.isC11(); 2324 Opts.C17 = Std.isC17(); 2325 Opts.C2x = Std.isC2x(); 2326 Opts.CPlusPlus = Std.isCPlusPlus(); 2327 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2328 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2329 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2330 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 2331 Opts.Digraphs = Std.hasDigraphs(); 2332 Opts.GNUMode = Std.isGNUMode(); 2333 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2334 Opts.GNUCVersion = 0; 2335 Opts.HexFloats = Std.hasHexFloats(); 2336 Opts.ImplicitInt = Std.hasImplicitInt(); 2337 2338 // Set OpenCL Version. 2339 Opts.OpenCL = Std.isOpenCL(); 2340 if (LangStd == LangStandard::lang_opencl10) 2341 Opts.OpenCLVersion = 100; 2342 else if (LangStd == LangStandard::lang_opencl11) 2343 Opts.OpenCLVersion = 110; 2344 else if (LangStd == LangStandard::lang_opencl12) 2345 Opts.OpenCLVersion = 120; 2346 else if (LangStd == LangStandard::lang_opencl20) 2347 Opts.OpenCLVersion = 200; 2348 else if (LangStd == LangStandard::lang_openclcpp) 2349 Opts.OpenCLCPlusPlusVersion = 100; 2350 2351 // OpenCL has some additional defaults. 2352 if (Opts.OpenCL) { 2353 Opts.AltiVec = 0; 2354 Opts.ZVector = 0; 2355 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2356 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2357 Opts.NativeHalfType = 1; 2358 Opts.NativeHalfArgsAndReturns = 1; 2359 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2360 2361 // Include default header file for OpenCL. 2362 if (Opts.IncludeDefaultHeader) { 2363 if (Opts.DeclareOpenCLBuiltins) { 2364 // Only include base header file for builtin types and constants. 2365 PPOpts.Includes.push_back("opencl-c-base.h"); 2366 } else { 2367 PPOpts.Includes.push_back("opencl-c.h"); 2368 } 2369 } 2370 } 2371 2372 Opts.HIP = IK.getLanguage() == Language::HIP; 2373 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2374 if (Opts.CUDA) 2375 // Set default FP_CONTRACT to FAST. 2376 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2377 2378 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2379 if (Opts.RenderScript) { 2380 Opts.NativeHalfType = 1; 2381 Opts.NativeHalfArgsAndReturns = 1; 2382 } 2383 2384 // OpenCL and C++ both have bool, true, false keywords. 2385 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2386 2387 // OpenCL has half keyword 2388 Opts.Half = Opts.OpenCL; 2389 2390 // C++ has wchar_t keyword. 2391 Opts.WChar = Opts.CPlusPlus; 2392 2393 Opts.GNUKeywords = Opts.GNUMode; 2394 Opts.CXXOperatorNames = Opts.CPlusPlus; 2395 2396 Opts.AlignedAllocation = Opts.CPlusPlus17; 2397 2398 Opts.DollarIdents = !Opts.AsmPreprocessor; 2399 2400 // Enable [[]] attributes in C++11 and C2x by default. 2401 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2402 } 2403 2404 /// Attempt to parse a visibility value out of the given argument. 2405 static Visibility parseVisibility(Arg *arg, ArgList &args, 2406 DiagnosticsEngine &diags) { 2407 StringRef value = arg->getValue(); 2408 if (value == "default") { 2409 return DefaultVisibility; 2410 } else if (value == "hidden" || value == "internal") { 2411 return HiddenVisibility; 2412 } else if (value == "protected") { 2413 // FIXME: diagnose if target does not support protected visibility 2414 return ProtectedVisibility; 2415 } 2416 2417 diags.Report(diag::err_drv_invalid_value) 2418 << arg->getAsString(args) << value; 2419 return DefaultVisibility; 2420 } 2421 2422 /// Check if input file kind and language standard are compatible. 2423 static bool IsInputCompatibleWithStandard(InputKind IK, 2424 const LangStandard &S) { 2425 switch (IK.getLanguage()) { 2426 case Language::Unknown: 2427 case Language::LLVM_IR: 2428 llvm_unreachable("should not parse language flags for this input"); 2429 2430 case Language::C: 2431 case Language::ObjC: 2432 case Language::RenderScript: 2433 return S.getLanguage() == Language::C; 2434 2435 case Language::OpenCL: 2436 return S.getLanguage() == Language::OpenCL; 2437 2438 case Language::CXX: 2439 case Language::ObjCXX: 2440 return S.getLanguage() == Language::CXX; 2441 2442 case Language::CUDA: 2443 // FIXME: What -std= values should be permitted for CUDA compilations? 2444 return S.getLanguage() == Language::CUDA || 2445 S.getLanguage() == Language::CXX; 2446 2447 case Language::HIP: 2448 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2449 2450 case Language::Asm: 2451 // Accept (and ignore) all -std= values. 2452 // FIXME: The -std= value is not ignored; it affects the tokenization 2453 // and preprocessing rules if we're preprocessing this asm input. 2454 return true; 2455 } 2456 2457 llvm_unreachable("unexpected input language"); 2458 } 2459 2460 /// Get language name for given input kind. 2461 static const StringRef GetInputKindName(InputKind IK) { 2462 switch (IK.getLanguage()) { 2463 case Language::C: 2464 return "C"; 2465 case Language::ObjC: 2466 return "Objective-C"; 2467 case Language::CXX: 2468 return "C++"; 2469 case Language::ObjCXX: 2470 return "Objective-C++"; 2471 case Language::OpenCL: 2472 return "OpenCL"; 2473 case Language::CUDA: 2474 return "CUDA"; 2475 case Language::RenderScript: 2476 return "RenderScript"; 2477 case Language::HIP: 2478 return "HIP"; 2479 2480 case Language::Asm: 2481 return "Asm"; 2482 case Language::LLVM_IR: 2483 return "LLVM IR"; 2484 2485 case Language::Unknown: 2486 break; 2487 } 2488 llvm_unreachable("unknown input language"); 2489 } 2490 2491 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2492 const TargetOptions &TargetOpts, 2493 PreprocessorOptions &PPOpts, 2494 DiagnosticsEngine &Diags) { 2495 // FIXME: Cleanup per-file based stuff. 2496 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2497 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2498 LangStd = LangStandard::getLangKind(A->getValue()); 2499 if (LangStd == LangStandard::lang_unspecified) { 2500 Diags.Report(diag::err_drv_invalid_value) 2501 << A->getAsString(Args) << A->getValue(); 2502 // Report supported standards with short description. 2503 for (unsigned KindValue = 0; 2504 KindValue != LangStandard::lang_unspecified; 2505 ++KindValue) { 2506 const LangStandard &Std = LangStandard::getLangStandardForKind( 2507 static_cast<LangStandard::Kind>(KindValue)); 2508 if (IsInputCompatibleWithStandard(IK, Std)) { 2509 auto Diag = Diags.Report(diag::note_drv_use_standard); 2510 Diag << Std.getName() << Std.getDescription(); 2511 unsigned NumAliases = 0; 2512 #define LANGSTANDARD(id, name, lang, desc, features) 2513 #define LANGSTANDARD_ALIAS(id, alias) \ 2514 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2515 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2516 #include "clang/Basic/LangStandards.def" 2517 Diag << NumAliases; 2518 #define LANGSTANDARD(id, name, lang, desc, features) 2519 #define LANGSTANDARD_ALIAS(id, alias) \ 2520 if (KindValue == LangStandard::lang_##id) Diag << alias; 2521 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2522 #include "clang/Basic/LangStandards.def" 2523 } 2524 } 2525 } else { 2526 // Valid standard, check to make sure language and standard are 2527 // compatible. 2528 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2529 if (!IsInputCompatibleWithStandard(IK, Std)) { 2530 Diags.Report(diag::err_drv_argument_not_allowed_with) 2531 << A->getAsString(Args) << GetInputKindName(IK); 2532 } 2533 } 2534 } 2535 2536 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2537 Opts.DllExportInlines = false; 2538 2539 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2540 StringRef Name = A->getValue(); 2541 if (Name == "full" || Name == "branch") { 2542 Opts.CFProtectionBranch = 1; 2543 } 2544 } 2545 // -cl-std only applies for OpenCL language standards. 2546 // Override the -std option in this case. 2547 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2548 LangStandard::Kind OpenCLLangStd 2549 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2550 .Cases("cl", "CL", LangStandard::lang_opencl10) 2551 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2552 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2553 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2554 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2555 .Default(LangStandard::lang_unspecified); 2556 2557 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2558 Diags.Report(diag::err_drv_invalid_value) 2559 << A->getAsString(Args) << A->getValue(); 2560 } 2561 else 2562 LangStd = OpenCLLangStd; 2563 } 2564 2565 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2566 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2567 if (Opts.SYCL) { 2568 // -sycl-std applies to any SYCL source, not only those containing kernels, 2569 // but also those using the SYCL API 2570 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2571 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2572 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2573 .Default(0U); 2574 2575 if (Opts.SYCLVersion == 0U) { 2576 // User has passed an invalid value to the flag, this is an error 2577 Diags.Report(diag::err_drv_invalid_value) 2578 << A->getAsString(Args) << A->getValue(); 2579 } 2580 } 2581 } 2582 2583 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2584 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2585 2586 llvm::Triple T(TargetOpts.Triple); 2587 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2588 2589 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2590 // This option should be deprecated for CL > 1.0 because 2591 // this option was added for compatibility with OpenCL 1.0. 2592 if (Args.getLastArg(OPT_cl_strict_aliasing) 2593 && Opts.OpenCLVersion > 100) { 2594 Diags.Report(diag::warn_option_invalid_ocl_version) 2595 << Opts.getOpenCLVersionTuple().getAsString() 2596 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2597 } 2598 2599 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2600 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2601 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2602 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2603 // name, as it doesn't seem a useful distinction. 2604 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2605 Opts.GNUKeywords); 2606 2607 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2608 2609 if (Args.hasArg(OPT_fno_operator_names)) 2610 Opts.CXXOperatorNames = 0; 2611 2612 if (Args.hasArg(OPT_fcuda_is_device)) 2613 Opts.CUDAIsDevice = 1; 2614 2615 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2616 Opts.CUDAAllowVariadicFunctions = 1; 2617 2618 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2619 Opts.CUDAHostDeviceConstexpr = 0; 2620 2621 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2622 Opts.CUDADeviceApproxTranscendentals = 1; 2623 2624 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2625 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2626 if (Opts.HIP) 2627 Opts.GPUAllowDeviceInit = 1; 2628 else 2629 Diags.Report(diag::warn_ignored_hip_only_option) 2630 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2631 } 2632 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2633 if (Opts.HIP) 2634 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2635 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2636 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2637 Diags.Report(diag::warn_ignored_hip_only_option) 2638 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2639 2640 if (Opts.ObjC) { 2641 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2642 StringRef value = arg->getValue(); 2643 if (Opts.ObjCRuntime.tryParse(value)) 2644 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2645 } 2646 2647 if (Args.hasArg(OPT_fobjc_gc_only)) 2648 Opts.setGC(LangOptions::GCOnly); 2649 else if (Args.hasArg(OPT_fobjc_gc)) 2650 Opts.setGC(LangOptions::HybridGC); 2651 else if (Args.hasArg(OPT_fobjc_arc)) { 2652 Opts.ObjCAutoRefCount = 1; 2653 if (!Opts.ObjCRuntime.allowsARC()) 2654 Diags.Report(diag::err_arc_unsupported_on_runtime); 2655 } 2656 2657 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2658 // whether the feature is actually enabled. This is predominantly 2659 // determined by -fobjc-runtime, but we allow it to be overridden 2660 // from the command line for testing purposes. 2661 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2662 Opts.ObjCWeakRuntime = 1; 2663 else 2664 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2665 2666 // ObjCWeak determines whether __weak is actually enabled. 2667 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2668 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2669 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2670 assert(!Opts.ObjCWeak); 2671 } else if (Opts.getGC() != LangOptions::NonGC) { 2672 Diags.Report(diag::err_objc_weak_with_gc); 2673 } else if (!Opts.ObjCWeakRuntime) { 2674 Diags.Report(diag::err_objc_weak_unsupported); 2675 } else { 2676 Opts.ObjCWeak = 1; 2677 } 2678 } else if (Opts.ObjCAutoRefCount) { 2679 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2680 } 2681 2682 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2683 Opts.ObjCInferRelatedResultType = 0; 2684 2685 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2686 Opts.ObjCSubscriptingLegacyRuntime = 2687 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2688 } 2689 2690 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2691 // Check that the version has 1 to 3 components and the minor and patch 2692 // versions fit in two decimal digits. 2693 VersionTuple GNUCVer; 2694 bool Invalid = GNUCVer.tryParse(A->getValue()); 2695 unsigned Major = GNUCVer.getMajor(); 2696 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2697 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2698 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2699 Diags.Report(diag::err_drv_invalid_value) 2700 << A->getAsString(Args) << A->getValue(); 2701 } 2702 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2703 } 2704 2705 if (Args.hasArg(OPT_fgnu89_inline)) { 2706 if (Opts.CPlusPlus) 2707 Diags.Report(diag::err_drv_argument_not_allowed_with) 2708 << "-fgnu89-inline" << GetInputKindName(IK); 2709 else 2710 Opts.GNUInline = 1; 2711 } 2712 2713 if (Args.hasArg(OPT_fapple_kext)) { 2714 if (!Opts.CPlusPlus) 2715 Diags.Report(diag::warn_c_kext); 2716 else 2717 Opts.AppleKext = 1; 2718 } 2719 2720 if (Args.hasArg(OPT_print_ivar_layout)) 2721 Opts.ObjCGCBitmapPrint = 1; 2722 2723 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2724 Opts.NoConstantCFStrings = 1; 2725 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2726 Opts.CFRuntime = 2727 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2728 .Cases("unspecified", "standalone", "objc", 2729 LangOptions::CoreFoundationABI::ObjectiveC) 2730 .Cases("swift", "swift-5.0", 2731 LangOptions::CoreFoundationABI::Swift5_0) 2732 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2733 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2734 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2735 2736 if (Args.hasArg(OPT_fzvector)) 2737 Opts.ZVector = 1; 2738 2739 if (Args.hasArg(OPT_pthread)) 2740 Opts.POSIXThreads = 1; 2741 2742 // The value-visibility mode defaults to "default". 2743 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2744 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2745 } else { 2746 Opts.setValueVisibilityMode(DefaultVisibility); 2747 } 2748 2749 // The type-visibility mode defaults to the value-visibility mode. 2750 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2751 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2752 } else { 2753 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2754 } 2755 2756 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2757 Opts.InlineVisibilityHidden = 1; 2758 2759 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2760 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2761 2762 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2763 Opts.SetVisibilityForExternDecls = 1; 2764 2765 if (Args.hasArg(OPT_ftrapv)) { 2766 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2767 // Set the handler, if one is specified. 2768 Opts.OverflowHandler = 2769 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2770 } 2771 else if (Args.hasArg(OPT_fwrapv)) 2772 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2773 2774 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2775 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2776 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2777 Opts.MSCompatibilityVersion = 0; 2778 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2779 VersionTuple VT; 2780 if (VT.tryParse(A->getValue())) 2781 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2782 << A->getValue(); 2783 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2784 VT.getMinor().getValueOr(0) * 100000 + 2785 VT.getSubminor().getValueOr(0); 2786 } 2787 2788 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2789 // is specified, or -std is set to a conforming mode. 2790 // Trigraphs are disabled by default in c++1z onwards. 2791 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2792 Opts.Trigraphs = 2793 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2794 2795 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2796 OPT_fno_dollars_in_identifiers, 2797 Opts.DollarIdents); 2798 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2799 Opts.setVtorDispMode( 2800 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2801 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2802 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2803 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2804 Opts.ConstStrings); 2805 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2806 using LaxKind = LangOptions::LaxVectorConversionKind; 2807 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2808 .Case("none", LaxKind::None) 2809 .Case("integer", LaxKind::Integer) 2810 .Case("all", LaxKind::All) 2811 .Default(llvm::None)) 2812 Opts.setLaxVectorConversions(*Kind); 2813 else 2814 Diags.Report(diag::err_drv_invalid_value) 2815 << A->getAsString(Args) << A->getValue(); 2816 } 2817 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2818 Opts.ThreadsafeStatics = 0; 2819 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2820 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2821 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2822 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2823 2824 // -ffixed-point 2825 Opts.FixedPoint = 2826 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2827 !Opts.CPlusPlus; 2828 Opts.PaddingOnUnsignedFixedPoint = 2829 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2830 OPT_fno_padding_on_unsigned_fixed_point, 2831 /*Default=*/false) && 2832 Opts.FixedPoint; 2833 2834 // Handle exception personalities 2835 Arg *A = Args.getLastArg( 2836 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2837 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2838 if (A) { 2839 const Option &Opt = A->getOption(); 2840 llvm::Triple T(TargetOpts.Triple); 2841 if (T.isWindowsMSVCEnvironment()) 2842 Diags.Report(diag::err_fe_invalid_exception_model) 2843 << Opt.getName() << T.str(); 2844 2845 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2846 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2847 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2848 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2849 } 2850 2851 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2852 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2853 2854 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2855 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2856 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2857 && Opts.OpenCLVersion == 200); 2858 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2859 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2860 2861 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2862 Args.hasArg(OPT_fconvergent_functions); 2863 2864 Opts.DoubleSquareBracketAttributes = 2865 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2866 OPT_fno_double_square_bracket_attributes, 2867 Opts.DoubleSquareBracketAttributes); 2868 2869 Opts.CPlusPlusModules = Opts.CPlusPlus20; 2870 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2871 Opts.Modules = 2872 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2873 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2874 Opts.ModulesDeclUse = 2875 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2876 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2877 // enter a different module (eg, when building a header unit). 2878 Opts.ModulesLocalVisibility = 2879 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2880 Opts.CPlusPlusModules; 2881 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2882 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2883 Opts.ModulesSearchAll = Opts.Modules && 2884 !Args.hasArg(OPT_fno_modules_search_all) && 2885 Args.hasArg(OPT_fmodules_search_all); 2886 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2887 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2888 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2889 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2890 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 2891 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2892 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2893 .Case("char", 1) 2894 .Case("short", 2) 2895 .Case("int", 4) 2896 .Default(0); 2897 if (Opts.WCharSize == 0) 2898 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2899 } 2900 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2901 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2902 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2903 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2904 if (!Opts.NoBuiltin) 2905 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2906 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2907 Opts.RelaxedTemplateTemplateArgs = 2908 Args.hasArg(OPT_frelaxed_template_template_args); 2909 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2910 Opts.AlignedAllocation = 2911 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2912 Opts.AlignedAllocation); 2913 Opts.AlignedAllocationUnavailable = 2914 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2915 Opts.NewAlignOverride = 2916 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2917 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2918 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2919 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2920 << A->getValue(); 2921 Opts.NewAlignOverride = 0; 2922 } 2923 Opts.ConceptSatisfactionCaching = 2924 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2925 if (Args.hasArg(OPT_fconcepts_ts)) 2926 Diags.Report(diag::warn_fe_concepts_ts_flag); 2927 // Recovery AST still heavily relies on dependent-type machinery. 2928 Opts.RecoveryAST = 2929 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, Opts.CPlusPlus); 2930 Opts.RecoveryASTType = 2931 Args.hasFlag(OPT_frecovery_ast_type, OPT_fno_recovery_ast_type, false); 2932 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2933 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2934 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2935 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2936 Opts.InstantiationDepth = 2937 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2938 Opts.ArrowDepth = 2939 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2940 Opts.ConstexprCallDepth = 2941 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2942 Opts.ConstexprStepLimit = 2943 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2944 Opts.EnableNewConstInterp = 2945 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2946 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2947 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2948 Opts.NumLargeByValueCopy = 2949 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2950 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2951 Opts.ObjCConstantStringClass = 2952 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2953 Opts.ObjCDefaultSynthProperties = 2954 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2955 Opts.EncodeExtendedBlockSig = 2956 Args.hasArg(OPT_fencode_extended_block_signature); 2957 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2958 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2959 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2960 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2961 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 2962 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2963 ? 128 2964 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2965 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2966 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2967 Opts.ROPI = Args.hasArg(OPT_fropi); 2968 Opts.RWPI = Args.hasArg(OPT_frwpi); 2969 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2970 Opts.Static = Args.hasArg(OPT_static_define); 2971 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2972 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2973 || Args.hasArg(OPT_fdump_record_layouts); 2974 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2975 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2976 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2977 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2978 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2979 if (Opts.FastRelaxedMath) 2980 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2981 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2982 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2983 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2984 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2985 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2986 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2987 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2988 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 2989 Opts.CurrentModule = Opts.ModuleName; 2990 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2991 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2992 llvm::sort(Opts.ModuleFeatures); 2993 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2994 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2995 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2996 // is enabled. 2997 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2998 | Opts.NativeHalfArgsAndReturns; 2999 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 3000 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 3001 3002 // __declspec is enabled by default for the PS4 by the driver, and also 3003 // enabled for Microsoft Extensions or Borland Extensions, here. 3004 // 3005 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 3006 // CUDA extension. However, it is required for supporting 3007 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 3008 // been rewritten in terms of something more generic, remove the Opts.CUDA 3009 // term here. 3010 Opts.DeclSpecKeyword = 3011 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 3012 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 3013 3014 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 3015 switch (llvm::StringSwitch<unsigned>(A->getValue()) 3016 .Case("target", LangOptions::ASMM_Target) 3017 .Case("no", LangOptions::ASMM_Off) 3018 .Case("yes", LangOptions::ASMM_On) 3019 .Default(255)) { 3020 default: 3021 Diags.Report(diag::err_drv_invalid_value) 3022 << "-faddress-space-map-mangling=" << A->getValue(); 3023 break; 3024 case LangOptions::ASMM_Target: 3025 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 3026 break; 3027 case LangOptions::ASMM_On: 3028 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 3029 break; 3030 case LangOptions::ASMM_Off: 3031 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 3032 break; 3033 } 3034 } 3035 3036 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 3037 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 3038 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 3039 A->getValue()) 3040 .Case("single", 3041 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3042 .Case("multiple", 3043 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3044 .Case("virtual", 3045 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3046 .Default(LangOptions::PPTMK_BestCase); 3047 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3048 Diags.Report(diag::err_drv_invalid_value) 3049 << "-fms-memptr-rep=" << A->getValue(); 3050 3051 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3052 } 3053 3054 // Check for MS default calling conventions being specified. 3055 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3056 LangOptions::DefaultCallingConvention DefaultCC = 3057 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3058 .Case("cdecl", LangOptions::DCC_CDecl) 3059 .Case("fastcall", LangOptions::DCC_FastCall) 3060 .Case("stdcall", LangOptions::DCC_StdCall) 3061 .Case("vectorcall", LangOptions::DCC_VectorCall) 3062 .Case("regcall", LangOptions::DCC_RegCall) 3063 .Default(LangOptions::DCC_None); 3064 if (DefaultCC == LangOptions::DCC_None) 3065 Diags.Report(diag::err_drv_invalid_value) 3066 << "-fdefault-calling-conv=" << A->getValue(); 3067 3068 llvm::Triple T(TargetOpts.Triple); 3069 llvm::Triple::ArchType Arch = T.getArch(); 3070 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3071 DefaultCC == LangOptions::DCC_StdCall) && 3072 Arch != llvm::Triple::x86; 3073 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3074 DefaultCC == LangOptions::DCC_RegCall) && 3075 !T.isX86(); 3076 if (emitError) 3077 Diags.Report(diag::err_drv_argument_not_allowed_with) 3078 << A->getSpelling() << T.getTriple(); 3079 else 3080 Opts.setDefaultCallingConv(DefaultCC); 3081 } 3082 3083 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3084 // An explicit -fno-semantic-interposition infers dso_local. 3085 Opts.ExplicitNoSemanticInterposition = 3086 Args.hasArg(OPT_fno_semantic_interposition); 3087 3088 // -mrtd option 3089 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3090 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3091 Diags.Report(diag::err_drv_argument_not_allowed_with) 3092 << A->getSpelling() << "-fdefault-calling-conv"; 3093 else { 3094 llvm::Triple T(TargetOpts.Triple); 3095 if (T.getArch() != llvm::Triple::x86) 3096 Diags.Report(diag::err_drv_argument_not_allowed_with) 3097 << A->getSpelling() << T.getTriple(); 3098 else 3099 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3100 } 3101 } 3102 3103 // Check if -fopenmp is specified and set default version to 5.0. 3104 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 50 : 0; 3105 // Check if -fopenmp-simd is specified. 3106 bool IsSimdSpecified = 3107 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3108 /*Default=*/false); 3109 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3110 Opts.OpenMPUseTLS = 3111 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3112 Opts.OpenMPIsDevice = 3113 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3114 Opts.OpenMPIRBuilder = 3115 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3116 bool IsTargetSpecified = 3117 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3118 3119 if (Opts.OpenMP || Opts.OpenMPSimd) { 3120 if (int Version = getLastArgIntValue( 3121 Args, OPT_fopenmp_version_EQ, 3122 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3123 Opts.OpenMP = Version; 3124 // Provide diagnostic when a given target is not expected to be an OpenMP 3125 // device or host. 3126 if (!Opts.OpenMPIsDevice) { 3127 switch (T.getArch()) { 3128 default: 3129 break; 3130 // Add unsupported host targets here: 3131 case llvm::Triple::nvptx: 3132 case llvm::Triple::nvptx64: 3133 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3134 << TargetOpts.Triple; 3135 break; 3136 } 3137 } 3138 } 3139 3140 // Set the flag to prevent the implementation from emitting device exception 3141 // handling code for those requiring so. 3142 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3143 Opts.OpenCLCPlusPlus) { 3144 Opts.Exceptions = 0; 3145 Opts.CXXExceptions = 0; 3146 } 3147 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3148 Opts.OpenMPCUDANumSMs = 3149 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3150 Opts.OpenMPCUDANumSMs, Diags); 3151 Opts.OpenMPCUDABlocksPerSM = 3152 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3153 Opts.OpenMPCUDABlocksPerSM, Diags); 3154 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3155 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3156 Opts.OpenMPCUDAReductionBufNum, Diags); 3157 } 3158 3159 // Prevent auto-widening the representation of loop counters during an 3160 // OpenMP collapse clause. 3161 Opts.OpenMPOptimisticCollapse = 3162 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3163 3164 // Get the OpenMP target triples if any. 3165 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3166 3167 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3168 llvm::Triple TT(A->getValue(i)); 3169 3170 if (TT.getArch() == llvm::Triple::UnknownArch || 3171 !(TT.getArch() == llvm::Triple::aarch64 || 3172 TT.getArch() == llvm::Triple::ppc || 3173 TT.getArch() == llvm::Triple::ppc64 || 3174 TT.getArch() == llvm::Triple::ppc64le || 3175 TT.getArch() == llvm::Triple::nvptx || 3176 TT.getArch() == llvm::Triple::nvptx64 || 3177 TT.getArch() == llvm::Triple::amdgcn || 3178 TT.getArch() == llvm::Triple::x86 || 3179 TT.getArch() == llvm::Triple::x86_64)) 3180 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3181 else 3182 Opts.OMPTargetTriples.push_back(TT); 3183 } 3184 } 3185 3186 // Get OpenMP host file path if any and report if a non existent file is 3187 // found 3188 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3189 Opts.OMPHostIRFile = A->getValue(); 3190 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3191 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3192 << Opts.OMPHostIRFile; 3193 } 3194 3195 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3196 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3197 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3198 3199 // Set CUDA support for parallel execution of target regions for OpenMP target 3200 // NVPTX/AMDGCN if specified in options. 3201 Opts.OpenMPCUDATargetParallel = 3202 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3203 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3204 3205 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3206 Opts.OpenMPCUDAForceFullRuntime = 3207 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3208 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3209 3210 // Record whether the __DEPRECATED define was requested. 3211 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3212 OPT_fno_deprecated_macro, 3213 Opts.Deprecated); 3214 3215 // FIXME: Eliminate this dependency. 3216 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3217 OptSize = getOptimizationLevelSize(Args); 3218 Opts.Optimize = Opt != 0; 3219 Opts.OptimizeSize = OptSize != 0; 3220 3221 // This is the __NO_INLINE__ define, which just depends on things like the 3222 // optimization level and -fno-inline, not actually whether the backend has 3223 // inlining enabled. 3224 Opts.NoInlineDefine = !Opts.Optimize; 3225 if (Arg *InlineArg = Args.getLastArg( 3226 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3227 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3228 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3229 Opts.NoInlineDefine = true; 3230 3231 Opts.FastMath = 3232 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_fast_relaxed_math); 3233 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3234 Args.hasArg(OPT_ffast_math) || 3235 Args.hasArg(OPT_cl_finite_math_only) || 3236 Args.hasArg(OPT_cl_fast_relaxed_math); 3237 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3238 Args.hasArg(OPT_ffast_math) || 3239 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3240 Args.hasArg(OPT_cl_fast_relaxed_math); 3241 Opts.AllowFPReassoc = Args.hasArg(OPT_mreassociate) || 3242 Args.hasArg(OPT_menable_unsafe_fp_math) || 3243 Args.hasArg(OPT_ffast_math) || 3244 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3245 Args.hasArg(OPT_cl_fast_relaxed_math); 3246 Opts.NoHonorNaNs = 3247 Args.hasArg(OPT_menable_no_nans) || Args.hasArg(OPT_ffinite_math_only) || 3248 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_finite_math_only) || 3249 Args.hasArg(OPT_cl_fast_relaxed_math); 3250 Opts.NoHonorInfs = Args.hasArg(OPT_menable_no_infinities) || 3251 Args.hasArg(OPT_ffinite_math_only) || 3252 Args.hasArg(OPT_ffast_math) || 3253 Args.hasArg(OPT_cl_finite_math_only) || 3254 Args.hasArg(OPT_cl_fast_relaxed_math); 3255 Opts.NoSignedZero = Args.hasArg(OPT_fno_signed_zeros) || 3256 Args.hasArg(OPT_menable_unsafe_fp_math) || 3257 Args.hasArg(OPT_ffast_math) || 3258 Args.hasArg(OPT_cl_no_signed_zeros) || 3259 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3260 Args.hasArg(OPT_cl_fast_relaxed_math); 3261 Opts.AllowRecip = Args.hasArg(OPT_freciprocal_math) || 3262 Args.hasArg(OPT_menable_unsafe_fp_math) || 3263 Args.hasArg(OPT_ffast_math) || 3264 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3265 Args.hasArg(OPT_cl_fast_relaxed_math); 3266 // Currently there's no clang option to enable this individually 3267 Opts.ApproxFunc = Args.hasArg(OPT_menable_unsafe_fp_math) || 3268 Args.hasArg(OPT_ffast_math) || 3269 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3270 Args.hasArg(OPT_cl_fast_relaxed_math); 3271 3272 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3273 StringRef Val = A->getValue(); 3274 if (Val == "fast") 3275 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3276 else if (Val == "on") 3277 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3278 else if (Val == "off") 3279 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3280 else 3281 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3282 } 3283 3284 if (Args.hasArg(OPT_fexperimental_strict_floating_point)) 3285 Opts.ExpStrictFP = true; 3286 3287 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3288 if (Args.hasArg(OPT_frounding_math)) { 3289 FPRM = llvm::RoundingMode::Dynamic; 3290 } 3291 Opts.setFPRoundingMode(FPRM); 3292 3293 if (Args.hasArg(OPT_ftrapping_math)) { 3294 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3295 } 3296 3297 if (Args.hasArg(OPT_fno_trapping_math)) { 3298 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3299 } 3300 3301 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3302 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3303 StringRef Val = A->getValue(); 3304 if (Val.equals("ignore")) 3305 FPEB = LangOptions::FPE_Ignore; 3306 else if (Val.equals("maytrap")) 3307 FPEB = LangOptions::FPE_MayTrap; 3308 else if (Val.equals("strict")) 3309 FPEB = LangOptions::FPE_Strict; 3310 else 3311 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3312 } 3313 Opts.setFPExceptionMode(FPEB); 3314 3315 Opts.RetainCommentsFromSystemHeaders = 3316 Args.hasArg(OPT_fretain_comments_from_system_headers); 3317 3318 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3319 switch (SSP) { 3320 default: 3321 Diags.Report(diag::err_drv_invalid_value) 3322 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3323 break; 3324 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3325 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3326 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3327 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3328 } 3329 3330 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3331 StringRef Val = A->getValue(); 3332 if (Val == "uninitialized") 3333 Opts.setTrivialAutoVarInit( 3334 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3335 else if (Val == "zero") 3336 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3337 else if (Val == "pattern") 3338 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3339 else 3340 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3341 } 3342 3343 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init_stop_after)) { 3344 int Val = std::stoi(A->getValue()); 3345 Opts.TrivialAutoVarInitStopAfter = Val; 3346 } 3347 3348 // Parse -fsanitize= arguments. 3349 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3350 Diags, Opts.Sanitize); 3351 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3352 Opts.SanitizeAddressFieldPadding = 3353 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3354 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3355 std::vector<std::string> systemBlacklists = 3356 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3357 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3358 systemBlacklists.begin(), 3359 systemBlacklists.end()); 3360 3361 // -fxray-instrument 3362 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3363 Opts.XRayAlwaysEmitCustomEvents = 3364 Args.hasArg(OPT_fxray_always_emit_customevents); 3365 Opts.XRayAlwaysEmitTypedEvents = 3366 Args.hasArg(OPT_fxray_always_emit_typedevents); 3367 3368 // -fxray-{always,never}-instrument= filenames. 3369 Opts.XRayAlwaysInstrumentFiles = 3370 Args.getAllArgValues(OPT_fxray_always_instrument); 3371 Opts.XRayNeverInstrumentFiles = 3372 Args.getAllArgValues(OPT_fxray_never_instrument); 3373 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3374 3375 // -fforce-emit-vtables 3376 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3377 3378 // -fallow-editor-placeholders 3379 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3380 3381 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3382 3383 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3384 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3385 3386 StringRef Ver = A->getValue(); 3387 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3388 unsigned Major, Minor = 0; 3389 3390 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3391 // y or y.0 (4 <= y <= current version). 3392 if (!VerParts.first.startswith("0") && 3393 !VerParts.first.getAsInteger(10, Major) && 3394 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3395 (Major == 3 ? VerParts.second.size() == 1 && 3396 !VerParts.second.getAsInteger(10, Minor) 3397 : VerParts.first.size() == Ver.size() || 3398 VerParts.second == "0")) { 3399 // Got a valid version number. 3400 if (Major == 3 && Minor <= 8) 3401 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3402 else if (Major <= 4) 3403 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3404 else if (Major <= 6) 3405 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3406 else if (Major <= 7) 3407 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3408 else if (Major <= 9) 3409 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3410 } else if (Ver != "latest") { 3411 Diags.Report(diag::err_drv_invalid_value) 3412 << A->getAsString(Args) << A->getValue(); 3413 } 3414 } 3415 3416 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3417 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3418 Opts.PCHInstantiateTemplates = Args.hasArg(OPT_fpch_instantiate_templates); 3419 3420 Opts.MatrixTypes = Args.hasArg(OPT_fenable_matrix); 3421 3422 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3423 3424 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3425 StringRef SignScope = A->getValue(); 3426 3427 if (SignScope.equals_lower("none")) 3428 Opts.setSignReturnAddressScope( 3429 LangOptions::SignReturnAddressScopeKind::None); 3430 else if (SignScope.equals_lower("all")) 3431 Opts.setSignReturnAddressScope( 3432 LangOptions::SignReturnAddressScopeKind::All); 3433 else if (SignScope.equals_lower("non-leaf")) 3434 Opts.setSignReturnAddressScope( 3435 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3436 else 3437 Diags.Report(diag::err_drv_invalid_value) 3438 << A->getAsString(Args) << SignScope; 3439 3440 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3441 StringRef SignKey = A->getValue(); 3442 if (!SignScope.empty() && !SignKey.empty()) { 3443 if (SignKey.equals_lower("a_key")) 3444 Opts.setSignReturnAddressKey( 3445 LangOptions::SignReturnAddressKeyKind::AKey); 3446 else if (SignKey.equals_lower("b_key")) 3447 Opts.setSignReturnAddressKey( 3448 LangOptions::SignReturnAddressKeyKind::BKey); 3449 else 3450 Diags.Report(diag::err_drv_invalid_value) 3451 << A->getAsString(Args) << SignKey; 3452 } 3453 } 3454 } 3455 3456 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3457 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 3458 3459 Opts.CompatibilityQualifiedIdBlockParamTypeChecking = 3460 Args.hasArg(OPT_fcompatibility_qualified_id_block_param_type_checking); 3461 3462 Opts.RelativeCXXABIVTables = 3463 Args.hasFlag(OPT_fexperimental_relative_cxx_abi_vtables, 3464 OPT_fno_experimental_relative_cxx_abi_vtables, 3465 /*default=*/false); 3466 } 3467 3468 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3469 switch (Action) { 3470 case frontend::ASTDeclList: 3471 case frontend::ASTDump: 3472 case frontend::ASTPrint: 3473 case frontend::ASTView: 3474 case frontend::EmitAssembly: 3475 case frontend::EmitBC: 3476 case frontend::EmitHTML: 3477 case frontend::EmitLLVM: 3478 case frontend::EmitLLVMOnly: 3479 case frontend::EmitCodeGenOnly: 3480 case frontend::EmitObj: 3481 case frontend::FixIt: 3482 case frontend::GenerateModule: 3483 case frontend::GenerateModuleInterface: 3484 case frontend::GenerateHeaderModule: 3485 case frontend::GeneratePCH: 3486 case frontend::GenerateInterfaceStubs: 3487 case frontend::ParseSyntaxOnly: 3488 case frontend::ModuleFileInfo: 3489 case frontend::VerifyPCH: 3490 case frontend::PluginAction: 3491 case frontend::RewriteObjC: 3492 case frontend::RewriteTest: 3493 case frontend::RunAnalysis: 3494 case frontend::TemplightDump: 3495 case frontend::MigrateSource: 3496 return false; 3497 3498 case frontend::DumpCompilerOptions: 3499 case frontend::DumpRawTokens: 3500 case frontend::DumpTokens: 3501 case frontend::InitOnly: 3502 case frontend::PrintPreamble: 3503 case frontend::PrintPreprocessedInput: 3504 case frontend::RewriteMacros: 3505 case frontend::RunPreprocessorOnly: 3506 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3507 return true; 3508 } 3509 llvm_unreachable("invalid frontend action"); 3510 } 3511 3512 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3513 DiagnosticsEngine &Diags, 3514 frontend::ActionKind Action) { 3515 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3516 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3517 Args.hasArg(OPT_pch_through_hdrstop_use); 3518 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3519 Opts.PCHThroughHeader = 3520 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3521 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3522 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3523 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3524 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3525 3526 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3527 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3528 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3529 3530 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3531 auto Split = StringRef(A).split('='); 3532 Opts.MacroPrefixMap.insert( 3533 {std::string(Split.first), std::string(Split.second)}); 3534 } 3535 3536 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3537 StringRef Value(A->getValue()); 3538 size_t Comma = Value.find(','); 3539 unsigned Bytes = 0; 3540 unsigned EndOfLine = 0; 3541 3542 if (Comma == StringRef::npos || 3543 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3544 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3545 Diags.Report(diag::err_drv_preamble_format); 3546 else { 3547 Opts.PrecompiledPreambleBytes.first = Bytes; 3548 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3549 } 3550 } 3551 3552 // Add the __CET__ macro if a CFProtection option is set. 3553 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3554 StringRef Name = A->getValue(); 3555 if (Name == "branch") 3556 Opts.addMacroDef("__CET__=1"); 3557 else if (Name == "return") 3558 Opts.addMacroDef("__CET__=2"); 3559 else if (Name == "full") 3560 Opts.addMacroDef("__CET__=3"); 3561 } 3562 3563 // Add macros from the command line. 3564 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3565 if (A->getOption().matches(OPT_D)) 3566 Opts.addMacroDef(A->getValue()); 3567 else 3568 Opts.addMacroUndef(A->getValue()); 3569 } 3570 3571 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3572 3573 // Add the ordered list of -includes. 3574 for (const auto *A : Args.filtered(OPT_include)) 3575 Opts.Includes.emplace_back(A->getValue()); 3576 3577 for (const auto *A : Args.filtered(OPT_chain_include)) 3578 Opts.ChainedIncludes.emplace_back(A->getValue()); 3579 3580 for (const auto *A : Args.filtered(OPT_remap_file)) { 3581 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3582 3583 if (Split.second.empty()) { 3584 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3585 continue; 3586 } 3587 3588 Opts.addRemappedFile(Split.first, Split.second); 3589 } 3590 3591 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3592 StringRef Name = A->getValue(); 3593 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3594 .Case("libc++", ARCXX_libcxx) 3595 .Case("libstdc++", ARCXX_libstdcxx) 3596 .Case("none", ARCXX_nolib) 3597 .Default(~0U); 3598 if (Library == ~0U) 3599 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3600 else 3601 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3602 } 3603 3604 // Always avoid lexing editor placeholders when we're just running the 3605 // preprocessor as we never want to emit the 3606 // "editor placeholder in source file" error in PP only mode. 3607 if (isStrictlyPreprocessorAction(Action)) 3608 Opts.LexEditorPlaceholders = false; 3609 3610 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3611 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3612 } 3613 3614 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3615 ArgList &Args, 3616 frontend::ActionKind Action) { 3617 if (isStrictlyPreprocessorAction(Action)) 3618 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3619 else 3620 Opts.ShowCPP = 0; 3621 3622 Opts.ShowComments = Args.hasArg(OPT_C); 3623 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3624 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3625 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3626 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3627 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3628 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3629 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3630 } 3631 3632 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3633 DiagnosticsEngine &Diags) { 3634 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3635 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3636 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3637 StringRef Value = A->getValue(); 3638 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3639 .Case("default", llvm::EABI::Default) 3640 .Case("4", llvm::EABI::EABI4) 3641 .Case("5", llvm::EABI::EABI5) 3642 .Case("gnu", llvm::EABI::GNU) 3643 .Default(llvm::EABI::Unknown); 3644 if (EABIVersion == llvm::EABI::Unknown) 3645 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3646 << Value; 3647 else 3648 Opts.EABIVersion = EABIVersion; 3649 } 3650 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3651 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3652 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3653 Opts.LinkerVersion = 3654 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3655 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3656 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3657 Opts.NVPTXUseShortPointers = Args.hasFlag( 3658 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3659 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3660 llvm::VersionTuple Version; 3661 if (Version.tryParse(A->getValue())) 3662 Diags.Report(diag::err_drv_invalid_value) 3663 << A->getAsString(Args) << A->getValue(); 3664 else 3665 Opts.SDKVersion = Version; 3666 } 3667 } 3668 3669 bool CompilerInvocation::parseSimpleArgs(const ArgList &Args, 3670 DiagnosticsEngine &Diags) { 3671 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 3672 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 3673 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 3674 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 3675 this->KEYPATH = Args.hasArg(OPT_##ID) && IS_POSITIVE; 3676 3677 #define OPTION_WITH_MARSHALLING_STRING( \ 3678 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3679 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3680 TYPE, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 3681 { \ 3682 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, Args, Diags)) \ 3683 this->KEYPATH = static_cast<TYPE>(*MaybeValue); \ 3684 else \ 3685 this->KEYPATH = DEFAULT_VALUE; \ 3686 } 3687 3688 #include "clang/Driver/Options.inc" 3689 #undef OPTION_WITH_MARSHALLING_STRING 3690 #undef OPTION_WITH_MARSHALLING_FLAG 3691 return true; 3692 } 3693 3694 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3695 ArrayRef<const char *> CommandLineArgs, 3696 DiagnosticsEngine &Diags, 3697 const char *Argv0) { 3698 bool Success = true; 3699 3700 // Parse the arguments. 3701 const OptTable &Opts = getDriverOptTable(); 3702 const unsigned IncludedFlagsBitmask = options::CC1Option; 3703 unsigned MissingArgIndex, MissingArgCount; 3704 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3705 MissingArgCount, IncludedFlagsBitmask); 3706 LangOptions &LangOpts = *Res.getLangOpts(); 3707 3708 // Check for missing argument error. 3709 if (MissingArgCount) { 3710 Diags.Report(diag::err_drv_missing_argument) 3711 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3712 Success = false; 3713 } 3714 3715 // Issue errors on unknown arguments. 3716 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3717 auto ArgString = A->getAsString(Args); 3718 std::string Nearest; 3719 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3720 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3721 else 3722 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3723 << ArgString << Nearest; 3724 Success = false; 3725 } 3726 3727 Success &= Res.parseSimpleArgs(Args, Diags); 3728 3729 llvm::sys::Process::UseANSIEscapeCodes( 3730 Res.DiagnosticOpts->UseANSIEscapeCodes); 3731 3732 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3733 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3734 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3735 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3736 Res.getDependencyOutputOpts().Targets.empty()) { 3737 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3738 Success = false; 3739 } 3740 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3741 /*DefaultDiagColor=*/false); 3742 ParseCommentArgs(LangOpts.CommentOpts, Args); 3743 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3744 // FIXME: We shouldn't have to pass the DashX option around here 3745 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3746 LangOpts.IsHeaderFile); 3747 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3748 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3749 Res.getTargetOpts(), Res.getFrontendOpts()); 3750 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3751 Res.getFileSystemOpts().WorkingDir); 3752 llvm::Triple T(Res.getTargetOpts().Triple); 3753 if (DashX.getFormat() == InputKind::Precompiled || 3754 DashX.getLanguage() == Language::LLVM_IR) { 3755 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3756 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3757 // what the input type is. 3758 if (Args.hasArg(OPT_fobjc_arc)) 3759 LangOpts.ObjCAutoRefCount = 1; 3760 // PIClevel and PIELevel are needed during code generation and this should be 3761 // set regardless of the input type. 3762 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3763 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3764 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3765 Diags, LangOpts.Sanitize); 3766 } else { 3767 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3768 // FIXME: Should we really be calling this for an Language::Asm input? 3769 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3770 Res.getPreprocessorOpts(), Diags); 3771 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3772 LangOpts.ObjCExceptions = 1; 3773 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3774 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3775 // preprocessed input as we don't expect it to be used with -std=libc++ 3776 // anyway. 3777 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3778 } 3779 } 3780 3781 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3782 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3783 3784 LangOpts.FunctionAlignment = 3785 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3786 3787 if (LangOpts.CUDA) { 3788 // During CUDA device-side compilation, the aux triple is the 3789 // triple used for host compilation. 3790 if (LangOpts.CUDAIsDevice) 3791 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3792 } 3793 3794 // Set the triple of the host for OpenMP device compile. 3795 if (LangOpts.OpenMPIsDevice) 3796 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3797 3798 // FIXME: Override value name discarding when asan or msan is used because the 3799 // backend passes depend on the name of the alloca in order to print out 3800 // names. 3801 Res.getCodeGenOpts().DiscardValueNames &= 3802 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3803 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3804 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3805 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3806 3807 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3808 Res.getFrontendOpts().ProgramAction); 3809 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3810 Res.getFrontendOpts().ProgramAction); 3811 3812 // Turn on -Wspir-compat for SPIR target. 3813 if (T.isSPIR()) 3814 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3815 3816 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3817 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3818 !Res.getLangOpts()->Sanitize.empty()) { 3819 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3820 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3821 } 3822 3823 // Store the command-line for using in the CodeView backend. 3824 Res.getCodeGenOpts().Argv0 = Argv0; 3825 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 3826 3827 return Success; 3828 } 3829 3830 std::string CompilerInvocation::getModuleHash() const { 3831 // Note: For QoI reasons, the things we use as a hash here should all be 3832 // dumped via the -module-info flag. 3833 using llvm::hash_code; 3834 using llvm::hash_value; 3835 using llvm::hash_combine; 3836 using llvm::hash_combine_range; 3837 3838 // Start the signature with the compiler version. 3839 // FIXME: We'd rather use something more cryptographically sound than 3840 // CityHash, but this will do for now. 3841 hash_code code = hash_value(getClangFullRepositoryVersion()); 3842 3843 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3844 // and getClangFullRepositoryVersion() doesn't include git revision. 3845 code = hash_combine(code, serialization::VERSION_MAJOR, 3846 serialization::VERSION_MINOR); 3847 3848 // Extend the signature with the language options 3849 #define LANGOPT(Name, Bits, Default, Description) \ 3850 code = hash_combine(code, LangOpts->Name); 3851 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3852 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3853 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3854 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3855 #include "clang/Basic/LangOptions.def" 3856 3857 for (StringRef Feature : LangOpts->ModuleFeatures) 3858 code = hash_combine(code, Feature); 3859 3860 code = hash_combine(code, LangOpts->ObjCRuntime); 3861 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 3862 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 3863 3864 // Extend the signature with the target options. 3865 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3866 TargetOpts->ABI); 3867 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3868 code = hash_combine(code, FeatureAsWritten); 3869 3870 // Extend the signature with preprocessor options. 3871 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3872 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3873 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3874 3875 for (const auto &I : getPreprocessorOpts().Macros) { 3876 // If we're supposed to ignore this macro for the purposes of modules, 3877 // don't put it into the hash. 3878 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3879 // Check whether we're ignoring this macro. 3880 StringRef MacroDef = I.first; 3881 if (hsOpts.ModulesIgnoreMacros.count( 3882 llvm::CachedHashString(MacroDef.split('=').first))) 3883 continue; 3884 } 3885 3886 code = hash_combine(code, I.first, I.second); 3887 } 3888 3889 // Extend the signature with the sysroot and other header search options. 3890 code = hash_combine(code, hsOpts.Sysroot, 3891 hsOpts.ModuleFormat, 3892 hsOpts.UseDebugInfo, 3893 hsOpts.UseBuiltinIncludes, 3894 hsOpts.UseStandardSystemIncludes, 3895 hsOpts.UseStandardCXXIncludes, 3896 hsOpts.UseLibcxx, 3897 hsOpts.ModulesValidateDiagnosticOptions); 3898 code = hash_combine(code, hsOpts.ResourceDir); 3899 3900 if (hsOpts.ModulesStrictContextHash) { 3901 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3902 hsOpts.SystemHeaderPrefixes.end()); 3903 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3904 hsOpts.UserEntries.end()); 3905 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3906 hsOpts.UserEntries.size(), UEC); 3907 3908 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3909 #define DIAGOPT(Name, Bits, Default) \ 3910 code = hash_combine(code, diagOpts.Name); 3911 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3912 code = hash_combine(code, diagOpts.get##Name()); 3913 #include "clang/Basic/DiagnosticOptions.def" 3914 #undef DIAGOPT 3915 #undef ENUM_DIAGOPT 3916 } 3917 3918 // Extend the signature with the user build path. 3919 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3920 3921 // Extend the signature with the module file extensions. 3922 const FrontendOptions &frontendOpts = getFrontendOpts(); 3923 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3924 code = ext->hashExtension(code); 3925 } 3926 3927 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3928 // affects the debug info in the PCM. 3929 if (getCodeGenOpts().DebugTypeExtRefs) 3930 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3931 code = hash_combine(code, KeyValue.first, KeyValue.second); 3932 3933 // Extend the signature with the enabled sanitizers, if at least one is 3934 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3935 SanitizerSet SanHash = LangOpts->Sanitize; 3936 SanHash.clear(getPPTransparentSanitizers()); 3937 if (!SanHash.empty()) 3938 code = hash_combine(code, SanHash.Mask); 3939 3940 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3941 } 3942 3943 void CompilerInvocation::generateCC1CommandLine( 3944 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 3945 #define OPTION_WITH_MARSHALLING_FLAG(PREFIX_TYPE, NAME, ID, KIND, GROUP, \ 3946 ALIAS, ALIASARGS, FLAGS, PARAM, HELPTEXT, \ 3947 METAVAR, VALUES, SPELLING, ALWAYS_EMIT, \ 3948 KEYPATH, DEFAULT_VALUE, IS_POSITIVE) \ 3949 if ((FLAGS) & options::CC1Option && \ 3950 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) \ 3951 Args.push_back(SPELLING); 3952 3953 #define OPTION_WITH_MARSHALLING_STRING( \ 3954 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3955 HELPTEXT, METAVAR, VALUES, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3956 NORMALIZER_RET_TY, NORMALIZER, DENORMALIZER, TABLE_INDEX) \ 3957 if (((FLAGS) & options::CC1Option) && \ 3958 (ALWAYS_EMIT || this->KEYPATH != DEFAULT_VALUE)) { \ 3959 if (Option::KIND##Class == Option::SeparateClass) { \ 3960 Args.push_back(SPELLING); \ 3961 Args.push_back(DENORMALIZER(SA, TABLE_INDEX, this->KEYPATH)); \ 3962 } \ 3963 } 3964 3965 #include "clang/Driver/Options.inc" 3966 #undef OPTION_WITH_MARSHALLING_STRING 3967 #undef OPTION_WITH_MARSHALLING_FLAG 3968 } 3969 3970 namespace clang { 3971 3972 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3973 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3974 DiagnosticsEngine &Diags) { 3975 return createVFSFromCompilerInvocation(CI, Diags, 3976 llvm::vfs::getRealFileSystem()); 3977 } 3978 3979 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3980 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3981 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3982 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3983 return BaseFS; 3984 3985 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3986 // earlier vfs files are on the bottom 3987 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3988 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3989 Result->getBufferForFile(File); 3990 if (!Buffer) { 3991 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3992 continue; 3993 } 3994 3995 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3996 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3997 /*DiagContext*/ nullptr, Result); 3998 if (!FS) { 3999 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4000 continue; 4001 } 4002 4003 Result = FS; 4004 } 4005 return Result; 4006 } 4007 4008 } // namespace clang 4009