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 // Deserialization (from args) 122 //===----------------------------------------------------------------------===// 123 124 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 125 DiagnosticsEngine &Diags) { 126 unsigned DefaultOpt = llvm::CodeGenOpt::None; 127 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 128 DefaultOpt = llvm::CodeGenOpt::Default; 129 130 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 131 if (A->getOption().matches(options::OPT_O0)) 132 return llvm::CodeGenOpt::None; 133 134 if (A->getOption().matches(options::OPT_Ofast)) 135 return llvm::CodeGenOpt::Aggressive; 136 137 assert(A->getOption().matches(options::OPT_O)); 138 139 StringRef S(A->getValue()); 140 if (S == "s" || S == "z" || S.empty()) 141 return llvm::CodeGenOpt::Default; 142 143 if (S == "g") 144 return llvm::CodeGenOpt::Less; 145 146 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 147 } 148 149 return DefaultOpt; 150 } 151 152 static unsigned getOptimizationLevelSize(ArgList &Args) { 153 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 154 if (A->getOption().matches(options::OPT_O)) { 155 switch (A->getValue()[0]) { 156 default: 157 return 0; 158 case 's': 159 return 1; 160 case 'z': 161 return 2; 162 } 163 } 164 } 165 return 0; 166 } 167 168 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 169 OptSpecifier GroupWithValue, 170 std::vector<std::string> &Diagnostics) { 171 for (auto *A : Args.filtered(Group)) { 172 if (A->getOption().getKind() == Option::FlagClass) { 173 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 174 // its name (minus the "W" or "R" at the beginning) to the warning list. 175 Diagnostics.push_back( 176 std::string(A->getOption().getName().drop_front(1))); 177 } else if (A->getOption().matches(GroupWithValue)) { 178 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 179 Diagnostics.push_back( 180 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 181 } else { 182 // Otherwise, add its value (for OPT_W_Joined and similar). 183 for (const auto *Arg : A->getValues()) 184 Diagnostics.emplace_back(Arg); 185 } 186 } 187 } 188 189 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 190 // it won't verify the input. 191 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 192 DiagnosticsEngine *Diags); 193 194 static void getAllNoBuiltinFuncValues(ArgList &Args, 195 std::vector<std::string> &Funcs) { 196 SmallVector<const char *, 8> Values; 197 for (const auto &Arg : Args) { 198 const Option &O = Arg->getOption(); 199 if (O.matches(options::OPT_fno_builtin_)) { 200 const char *FuncName = Arg->getValue(); 201 if (Builtin::Context::isBuiltinFunc(FuncName)) 202 Values.push_back(FuncName); 203 } 204 } 205 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 206 } 207 208 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 209 DiagnosticsEngine &Diags) { 210 bool Success = true; 211 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 212 StringRef Name = A->getValue(); 213 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 214 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 215 .Case(CMDFLAG, NAME##Model) 216 #include "clang/StaticAnalyzer/Core/Analyses.def" 217 .Default(NumStores); 218 if (Value == NumStores) { 219 Diags.Report(diag::err_drv_invalid_value) 220 << A->getAsString(Args) << Name; 221 Success = false; 222 } else { 223 Opts.AnalysisStoreOpt = Value; 224 } 225 } 226 227 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 228 StringRef Name = A->getValue(); 229 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 230 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 231 .Case(CMDFLAG, NAME##Model) 232 #include "clang/StaticAnalyzer/Core/Analyses.def" 233 .Default(NumConstraints); 234 if (Value == NumConstraints) { 235 Diags.Report(diag::err_drv_invalid_value) 236 << A->getAsString(Args) << Name; 237 Success = false; 238 } else { 239 Opts.AnalysisConstraintsOpt = Value; 240 } 241 } 242 243 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 244 StringRef Name = A->getValue(); 245 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 246 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 247 .Case(CMDFLAG, PD_##NAME) 248 #include "clang/StaticAnalyzer/Core/Analyses.def" 249 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 250 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 251 Diags.Report(diag::err_drv_invalid_value) 252 << A->getAsString(Args) << Name; 253 Success = false; 254 } else { 255 Opts.AnalysisDiagOpt = Value; 256 } 257 } 258 259 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 260 StringRef Name = A->getValue(); 261 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 262 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 263 .Case(CMDFLAG, NAME) 264 #include "clang/StaticAnalyzer/Core/Analyses.def" 265 .Default(NumPurgeModes); 266 if (Value == NumPurgeModes) { 267 Diags.Report(diag::err_drv_invalid_value) 268 << A->getAsString(Args) << Name; 269 Success = false; 270 } else { 271 Opts.AnalysisPurgeOpt = Value; 272 } 273 } 274 275 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 276 StringRef Name = A->getValue(); 277 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 278 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 279 .Case(CMDFLAG, NAME) 280 #include "clang/StaticAnalyzer/Core/Analyses.def" 281 .Default(NumInliningModes); 282 if (Value == NumInliningModes) { 283 Diags.Report(diag::err_drv_invalid_value) 284 << A->getAsString(Args) << Name; 285 Success = false; 286 } else { 287 Opts.InliningMode = Value; 288 } 289 } 290 291 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 292 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 293 Opts.ShowCheckerHelpDeveloper = 294 Args.hasArg(OPT_analyzer_checker_help_developer); 295 296 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 297 Opts.ShowCheckerOptionAlphaList = 298 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 299 Opts.ShowCheckerOptionDeveloperList = 300 Args.hasArg(OPT_analyzer_checker_option_help_developer); 301 302 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 303 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 304 Opts.ShouldEmitErrorsOnInvalidConfigValue = 305 /* negated */!llvm::StringSwitch<bool>( 306 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 307 .Case("true", true) 308 .Case("false", false) 309 .Default(false); 310 Opts.DisableAllCheckers = Args.hasArg(OPT_analyzer_disable_all_checks); 311 312 Opts.visualizeExplodedGraphWithGraphViz = 313 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 314 Opts.DumpExplodedGraphTo = 315 std::string(Args.getLastArgValue(OPT_analyzer_dump_egraph)); 316 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 317 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 318 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 319 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 320 Opts.AnalyzeNestedBlocks = 321 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 322 Opts.AnalyzeSpecificFunction = 323 std::string(Args.getLastArgValue(OPT_analyze_function)); 324 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 325 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 326 Opts.maxBlockVisitOnPath = 327 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 328 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 329 Opts.InlineMaxStackDepth = 330 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 331 Opts.InlineMaxStackDepth, Diags); 332 333 Opts.CheckersAndPackages.clear(); 334 for (const Arg *A : 335 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 336 A->claim(); 337 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 338 // We can have a list of comma separated checker names, e.g: 339 // '-analyzer-checker=cocoa,unix' 340 StringRef CheckerAndPackageList = A->getValue(); 341 SmallVector<StringRef, 16> CheckersAndPackages; 342 CheckerAndPackageList.split(CheckersAndPackages, ","); 343 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 344 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 345 IsEnabled); 346 } 347 348 // Go through the analyzer configuration options. 349 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 350 351 // We can have a list of comma separated config names, e.g: 352 // '-analyzer-config key1=val1,key2=val2' 353 StringRef configList = A->getValue(); 354 SmallVector<StringRef, 4> configVals; 355 configList.split(configVals, ","); 356 for (const auto &configVal : configVals) { 357 StringRef key, val; 358 std::tie(key, val) = configVal.split("="); 359 if (val.empty()) { 360 Diags.Report(SourceLocation(), 361 diag::err_analyzer_config_no_value) << configVal; 362 Success = false; 363 break; 364 } 365 if (val.find('=') != StringRef::npos) { 366 Diags.Report(SourceLocation(), 367 diag::err_analyzer_config_multiple_values) 368 << configVal; 369 Success = false; 370 break; 371 } 372 373 // TODO: Check checker options too, possibly in CheckerRegistry. 374 // Leave unknown non-checker configs unclaimed. 375 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 376 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 377 Diags.Report(diag::err_analyzer_config_unknown) << key; 378 continue; 379 } 380 381 A->claim(); 382 Opts.Config[key] = std::string(val); 383 } 384 } 385 386 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 387 parseAnalyzerConfigs(Opts, &Diags); 388 else 389 parseAnalyzerConfigs(Opts, nullptr); 390 391 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 392 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 393 if (i != 0) 394 os << " "; 395 os << Args.getArgString(i); 396 } 397 os.flush(); 398 399 return Success; 400 } 401 402 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 403 StringRef OptionName, StringRef DefaultVal) { 404 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 405 } 406 407 static void initOption(AnalyzerOptions::ConfigTable &Config, 408 DiagnosticsEngine *Diags, 409 StringRef &OptionField, StringRef Name, 410 StringRef DefaultVal) { 411 // String options may be known to invalid (e.g. if the expected string is a 412 // file name, but the file does not exist), those will have to be checked in 413 // parseConfigs. 414 OptionField = getStringOption(Config, Name, DefaultVal); 415 } 416 417 static void initOption(AnalyzerOptions::ConfigTable &Config, 418 DiagnosticsEngine *Diags, 419 bool &OptionField, StringRef Name, bool DefaultVal) { 420 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 421 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 422 .Case("true", true) 423 .Case("false", false) 424 .Default(None); 425 426 if (!PossiblyInvalidVal) { 427 if (Diags) 428 Diags->Report(diag::err_analyzer_config_invalid_input) 429 << Name << "a boolean"; 430 else 431 OptionField = DefaultVal; 432 } else 433 OptionField = PossiblyInvalidVal.getValue(); 434 } 435 436 static void initOption(AnalyzerOptions::ConfigTable &Config, 437 DiagnosticsEngine *Diags, 438 unsigned &OptionField, StringRef Name, 439 unsigned DefaultVal) { 440 441 OptionField = DefaultVal; 442 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 443 .getAsInteger(0, OptionField); 444 if (Diags && HasFailed) 445 Diags->Report(diag::err_analyzer_config_invalid_input) 446 << Name << "an unsigned"; 447 } 448 449 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 450 DiagnosticsEngine *Diags) { 451 // TODO: There's no need to store the entire configtable, it'd be plenty 452 // enough tostore checker options. 453 454 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 455 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 456 457 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 458 SHALLOW_VAL, DEEP_VAL) \ 459 switch (AnOpts.getUserMode()) { \ 460 case UMK_Shallow: \ 461 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 462 break; \ 463 case UMK_Deep: \ 464 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 465 break; \ 466 } \ 467 468 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 469 #undef ANALYZER_OPTION 470 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 471 472 // At this point, AnalyzerOptions is configured. Let's validate some options. 473 474 // FIXME: Here we try to validate the silenced checkers or packages are valid. 475 // The current approach only validates the registered checkers which does not 476 // contain the runtime enabled checkers and optimally we would validate both. 477 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 478 std::vector<StringRef> Checkers = 479 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 480 std::vector<StringRef> Packages = 481 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 482 483 SmallVector<StringRef, 16> CheckersAndPackages; 484 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 485 486 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 487 if (Diags) { 488 bool IsChecker = CheckerOrPackage.contains('.'); 489 bool IsValidName = 490 IsChecker 491 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 492 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 493 494 if (!IsValidName) 495 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 496 << CheckerOrPackage; 497 } 498 499 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 500 } 501 } 502 503 if (!Diags) 504 return; 505 506 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 507 Diags->Report(diag::err_analyzer_config_invalid_input) 508 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 509 510 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 511 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 512 << "a filename"; 513 514 if (!AnOpts.ModelPath.empty() && 515 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 516 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 517 << "a filename"; 518 } 519 520 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 521 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 522 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 523 return true; 524 } 525 526 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 527 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 528 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 529 } 530 531 static llvm::Reloc::Model getRelocModel(ArgList &Args, 532 DiagnosticsEngine &Diags) { 533 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 534 StringRef Value = A->getValue(); 535 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 536 .Case("static", llvm::Reloc::Static) 537 .Case("pic", llvm::Reloc::PIC_) 538 .Case("ropi", llvm::Reloc::ROPI) 539 .Case("rwpi", llvm::Reloc::RWPI) 540 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 541 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 542 .Default(None); 543 if (RM.hasValue()) 544 return *RM; 545 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 546 } 547 return llvm::Reloc::PIC_; 548 } 549 550 /// Create a new Regex instance out of the string value in \p RpassArg. 551 /// It returns a pointer to the newly generated Regex instance. 552 static std::shared_ptr<llvm::Regex> 553 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 554 Arg *RpassArg) { 555 StringRef Val = RpassArg->getValue(); 556 std::string RegexError; 557 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 558 if (!Pattern->isValid(RegexError)) { 559 Diags.Report(diag::err_drv_optimization_remark_pattern) 560 << RegexError << RpassArg->getAsString(Args); 561 Pattern.reset(); 562 } 563 return Pattern; 564 } 565 566 static bool parseDiagnosticLevelMask(StringRef FlagName, 567 const std::vector<std::string> &Levels, 568 DiagnosticsEngine *Diags, 569 DiagnosticLevelMask &M) { 570 bool Success = true; 571 for (const auto &Level : Levels) { 572 DiagnosticLevelMask const PM = 573 llvm::StringSwitch<DiagnosticLevelMask>(Level) 574 .Case("note", DiagnosticLevelMask::Note) 575 .Case("remark", DiagnosticLevelMask::Remark) 576 .Case("warning", DiagnosticLevelMask::Warning) 577 .Case("error", DiagnosticLevelMask::Error) 578 .Default(DiagnosticLevelMask::None); 579 if (PM == DiagnosticLevelMask::None) { 580 Success = false; 581 if (Diags) 582 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 583 } 584 M = M | PM; 585 } 586 return Success; 587 } 588 589 static void parseSanitizerKinds(StringRef FlagName, 590 const std::vector<std::string> &Sanitizers, 591 DiagnosticsEngine &Diags, SanitizerSet &S) { 592 for (const auto &Sanitizer : Sanitizers) { 593 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 594 if (K == SanitizerMask()) 595 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 596 else 597 S.set(K, true); 598 } 599 } 600 601 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 602 ArgList &Args, DiagnosticsEngine &D, 603 XRayInstrSet &S) { 604 llvm::SmallVector<StringRef, 2> BundleParts; 605 llvm::SplitString(Bundle, BundleParts, ","); 606 for (const auto &B : BundleParts) { 607 auto Mask = parseXRayInstrValue(B); 608 if (Mask == XRayInstrKind::None) 609 if (B != "none") 610 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 611 else 612 S.Mask = Mask; 613 else if (Mask == XRayInstrKind::All) 614 S.Mask = Mask; 615 else 616 S.set(Mask, true); 617 } 618 } 619 620 // Set the profile kind for fprofile-instrument. 621 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 622 DiagnosticsEngine &Diags) { 623 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 624 if (A == nullptr) 625 return; 626 StringRef S = A->getValue(); 627 unsigned I = llvm::StringSwitch<unsigned>(S) 628 .Case("none", CodeGenOptions::ProfileNone) 629 .Case("clang", CodeGenOptions::ProfileClangInstr) 630 .Case("llvm", CodeGenOptions::ProfileIRInstr) 631 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 632 .Default(~0U); 633 if (I == ~0U) { 634 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 635 << S; 636 return; 637 } 638 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 639 Opts.setProfileInstr(Instrumentor); 640 } 641 642 // Set the profile kind using fprofile-instrument-use-path. 643 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 644 const Twine &ProfileName) { 645 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 646 // In error, return silently and let Clang PGOUse report the error message. 647 if (auto E = ReaderOrErr.takeError()) { 648 llvm::consumeError(std::move(E)); 649 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 650 return; 651 } 652 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 653 std::move(ReaderOrErr.get()); 654 if (PGOReader->isIRLevelProfile()) { 655 if (PGOReader->hasCSIRLevelProfile()) 656 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 657 else 658 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 659 } else 660 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 661 } 662 663 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 664 DiagnosticsEngine &Diags, 665 const TargetOptions &TargetOpts, 666 const FrontendOptions &FrontendOpts) { 667 bool Success = true; 668 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 669 670 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 671 // TODO: This could be done in Driver 672 unsigned MaxOptLevel = 3; 673 if (OptimizationLevel > MaxOptLevel) { 674 // If the optimization level is not supported, fall back on the default 675 // optimization 676 Diags.Report(diag::warn_drv_optimization_value) 677 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 678 OptimizationLevel = MaxOptLevel; 679 } 680 Opts.OptimizationLevel = OptimizationLevel; 681 682 // At O0 we want to fully disable inlining outside of cases marked with 683 // 'alwaysinline' that are required for correctness. 684 Opts.setInlining((Opts.OptimizationLevel == 0) 685 ? CodeGenOptions::OnlyAlwaysInlining 686 : CodeGenOptions::NormalInlining); 687 // Explicit inlining flags can disable some or all inlining even at 688 // optimization levels above zero. 689 if (Arg *InlineArg = Args.getLastArg( 690 options::OPT_finline_functions, options::OPT_finline_hint_functions, 691 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 692 if (Opts.OptimizationLevel > 0) { 693 const Option &InlineOpt = InlineArg->getOption(); 694 if (InlineOpt.matches(options::OPT_finline_functions)) 695 Opts.setInlining(CodeGenOptions::NormalInlining); 696 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 697 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 698 else 699 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 700 } 701 } 702 703 Opts.ExperimentalNewPassManager = Args.hasFlag( 704 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 705 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 706 707 Opts.DebugPassManager = 708 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 709 /* Default */ false); 710 711 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 712 StringRef Name = A->getValue(); 713 if (Name == "Accelerate") 714 Opts.setVecLib(CodeGenOptions::Accelerate); 715 else if (Name == "MASSV") 716 Opts.setVecLib(CodeGenOptions::MASSV); 717 else if (Name == "SVML") 718 Opts.setVecLib(CodeGenOptions::SVML); 719 else if (Name == "none") 720 Opts.setVecLib(CodeGenOptions::NoLibrary); 721 else 722 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 723 } 724 725 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 726 unsigned Val = 727 llvm::StringSwitch<unsigned>(A->getValue()) 728 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 729 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 730 .Case("constructor", codegenoptions::DebugInfoConstructor) 731 .Case("limited", codegenoptions::LimitedDebugInfo) 732 .Case("standalone", codegenoptions::FullDebugInfo) 733 .Default(~0U); 734 if (Val == ~0U) 735 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 736 << A->getValue(); 737 else 738 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 739 } 740 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 741 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 742 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 743 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 744 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 745 .Default(~0U); 746 if (Val == ~0U) 747 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 748 << A->getValue(); 749 else 750 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 751 } 752 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 753 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 754 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 755 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 756 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 757 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 758 Opts.VirtualFunctionElimination = 759 Args.hasArg(OPT_fvirtual_function_elimination); 760 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 761 Opts.SplitDwarfFile = std::string(Args.getLastArgValue(OPT_split_dwarf_file)); 762 Opts.SplitDwarfOutput = 763 std::string(Args.getLastArgValue(OPT_split_dwarf_output)); 764 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 765 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 766 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 767 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 768 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 769 770 Opts.ForceDwarfFrameSection = 771 Args.hasFlag(OPT_fforce_dwarf_frame, OPT_fno_force_dwarf_frame, false); 772 773 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 774 auto Split = StringRef(Arg).split('='); 775 Opts.DebugPrefixMap.insert( 776 {std::string(Split.first), std::string(Split.second)}); 777 } 778 779 if (const Arg *A = 780 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 781 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 782 783 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 784 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 785 786 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 787 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 788 llvm::Triple::arm, llvm::Triple::armeb}; 789 790 llvm::Triple T(TargetOpts.Triple); 791 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 792 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 793 Opts.EmitCallSiteInfo = true; 794 795 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 796 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 797 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 798 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 799 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 800 OPT_fuse_register_sized_bitfield_access); 801 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 802 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 803 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 804 Args.hasArg(OPT_new_struct_path_tbaa); 805 Opts.FineGrainedBitfieldAccesses = 806 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 807 OPT_fno_fine_grained_bitfield_accesses, false); 808 Opts.DwarfDebugFlags = 809 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 810 Opts.RecordCommandLine = 811 std::string(Args.getLastArgValue(OPT_record_command_line)); 812 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 813 Opts.NoCommon = !Args.hasArg(OPT_fcommon); 814 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables); 815 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 816 Opts.OptimizeSize = getOptimizationLevelSize(Args); 817 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 818 Args.hasArg(OPT_ffreestanding)); 819 if (Opts.SimplifyLibCalls) 820 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 821 Opts.UnrollLoops = 822 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 823 (Opts.OptimizationLevel > 1)); 824 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 825 826 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 827 Opts.CallGraphProfile = !Opts.DisableIntegratedAS; 828 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 829 Opts.SampleProfileFile = 830 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 831 Opts.DebugInfoForProfiling = Args.hasFlag( 832 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 833 Opts.DebugNameTable = static_cast<unsigned>( 834 Args.hasArg(OPT_ggnu_pubnames) 835 ? llvm::DICompileUnit::DebugNameTableKind::GNU 836 : Args.hasArg(OPT_gpubnames) 837 ? llvm::DICompileUnit::DebugNameTableKind::Default 838 : llvm::DICompileUnit::DebugNameTableKind::None); 839 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 840 841 setPGOInstrumentor(Opts, Args, Diags); 842 Opts.InstrProfileOutput = 843 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 844 Opts.ProfileInstrumentUsePath = 845 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 846 if (!Opts.ProfileInstrumentUsePath.empty()) 847 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 848 Opts.ProfileRemappingFile = 849 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 850 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 851 Diags.Report(diag::err_drv_argument_only_allowed_with) 852 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 853 << "-fexperimental-new-pass-manager"; 854 } 855 856 Opts.CoverageMapping = 857 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 858 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 859 Opts.AsmVerbose = !Args.hasArg(OPT_fno_verbose_asm); 860 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 861 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 862 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 863 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 864 Opts.RegisterGlobalDtorsWithAtExit = 865 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 866 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 867 Opts.CodeModel = TargetOpts.CodeModel; 868 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 869 870 // Handle -mframe-pointer option. 871 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 872 CodeGenOptions::FramePointerKind FP; 873 StringRef Name = A->getValue(); 874 bool ValidFP = true; 875 if (Name == "none") 876 FP = CodeGenOptions::FramePointerKind::None; 877 else if (Name == "non-leaf") 878 FP = CodeGenOptions::FramePointerKind::NonLeaf; 879 else if (Name == "all") 880 FP = CodeGenOptions::FramePointerKind::All; 881 else { 882 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 883 Success = false; 884 ValidFP = false; 885 } 886 if (ValidFP) 887 Opts.setFramePointer(FP); 888 } 889 890 Opts.DisableFree = Args.hasArg(OPT_disable_free); 891 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 892 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 893 Opts.NoEscapingBlockTailCalls = 894 Args.hasArg(OPT_fno_escaping_block_tail_calls); 895 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 896 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 897 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 898 Args.hasArg(OPT_cl_fast_relaxed_math); 899 Opts.LimitFloatPrecision = 900 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 901 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 902 Args.hasArg(OPT_cl_finite_math_only) || 903 Args.hasArg(OPT_cl_fast_relaxed_math)); 904 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 905 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 906 Args.hasArg(OPT_cl_finite_math_only) || 907 Args.hasArg(OPT_cl_fast_relaxed_math)); 908 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 909 Args.hasArg(OPT_cl_no_signed_zeros) || 910 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 911 Args.hasArg(OPT_cl_fast_relaxed_math)); 912 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 913 Opts.CorrectlyRoundedDivSqrt = 914 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 915 Opts.UniformWGSize = 916 Args.hasArg(OPT_cl_uniform_work_group_size); 917 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 918 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 919 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 920 Opts.StrictFloatCastOverflow = 921 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 922 923 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 924 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 925 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 926 Opts.SmallDataLimit = 927 getLastArgIntValue(Args, OPT_msmall_data_limit, 0, Diags); 928 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 929 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 930 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 931 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 932 Opts.IncrementalLinkerCompatible = 933 Args.hasArg(OPT_mincremental_linker_compatible); 934 Opts.PIECopyRelocations = 935 Args.hasArg(OPT_mpie_copy_relocations); 936 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 937 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 938 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 939 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 940 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 941 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 942 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 943 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 944 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 945 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 946 Args.hasArg(OPT_cl_fast_relaxed_math); 947 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 948 Opts.RelocationModel = getRelocModel(Args, Diags); 949 Opts.ThreadModel = 950 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 951 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 952 Diags.Report(diag::err_drv_invalid_value) 953 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 954 << Opts.ThreadModel; 955 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 956 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 957 958 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 959 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 960 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 961 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 962 963 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 964 965 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 966 967 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 968 969 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 970 971 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 972 Opts.PrepareForThinLTO = false; 973 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 974 StringRef S = A->getValue(); 975 if (S == "thin") 976 Opts.PrepareForThinLTO = true; 977 else if (S != "full") 978 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 979 } 980 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 981 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 982 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 983 if (IK.getLanguage() != Language::LLVM_IR) 984 Diags.Report(diag::err_drv_argument_only_allowed_with) 985 << A->getAsString(Args) << "-x ir"; 986 Opts.ThinLTOIndexFile = 987 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 988 } 989 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 990 Opts.SaveTempsFilePrefix = 991 llvm::StringSwitch<std::string>(A->getValue()) 992 .Case("obj", FrontendOpts.OutputFile) 993 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 994 995 Opts.ThinLinkBitcodeFile = 996 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 997 998 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 999 1000 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 1001 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 1002 1003 Opts.PreferVectorWidth = 1004 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1005 1006 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1007 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1008 1009 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1010 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1011 1012 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 1013 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1014 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1015 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1016 Opts.CoverageDataFile = 1017 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1018 Opts.CoverageNotesFile = 1019 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1020 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 1021 Opts.CoverageNoFunctionNamesInData = 1022 Args.hasArg(OPT_coverage_no_function_names_in_data); 1023 Opts.ProfileFilterFiles = 1024 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1025 Opts.ProfileExcludeFiles = 1026 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1027 Opts.CoverageExitBlockBeforeBody = 1028 Args.hasArg(OPT_coverage_exit_block_before_body); 1029 if (Args.hasArg(OPT_coverage_version_EQ)) { 1030 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1031 if (CoverageVersion.size() != 4) { 1032 Diags.Report(diag::err_drv_invalid_value) 1033 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1034 << CoverageVersion; 1035 } else { 1036 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1037 } 1038 } 1039 } 1040 // Handle -fembed-bitcode option. 1041 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1042 StringRef Name = A->getValue(); 1043 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1044 .Case("off", CodeGenOptions::Embed_Off) 1045 .Case("all", CodeGenOptions::Embed_All) 1046 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1047 .Case("marker", CodeGenOptions::Embed_Marker) 1048 .Default(~0U); 1049 if (Model == ~0U) { 1050 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1051 Success = false; 1052 } else 1053 Opts.setEmbedBitcode( 1054 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1055 } 1056 // FIXME: For backend options that are not yet recorded as function 1057 // attributes in the IR, keep track of them so we can embed them in a 1058 // separate data section and use them when building the bitcode. 1059 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1060 for (const auto &A : Args) { 1061 // Do not encode output and input. 1062 if (A->getOption().getID() == options::OPT_o || 1063 A->getOption().getID() == options::OPT_INPUT || 1064 A->getOption().getID() == options::OPT_x || 1065 A->getOption().getID() == options::OPT_fembed_bitcode || 1066 (A->getOption().getGroup().isValid() && 1067 A->getOption().getGroup().getID() == options::OPT_W_Group)) 1068 continue; 1069 ArgStringList ASL; 1070 A->render(Args, ASL); 1071 for (const auto &arg : ASL) { 1072 StringRef ArgStr(arg); 1073 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1074 // using \00 to separate each commandline options. 1075 Opts.CmdArgs.push_back('\0'); 1076 } 1077 } 1078 } 1079 1080 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1081 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1082 Opts.InstrumentFunctionsAfterInlining = 1083 Args.hasArg(OPT_finstrument_functions_after_inlining); 1084 Opts.InstrumentFunctionEntryBare = 1085 Args.hasArg(OPT_finstrument_function_entry_bare); 1086 1087 Opts.XRayInstrumentFunctions = 1088 Args.hasArg(OPT_fxray_instrument); 1089 Opts.XRayAlwaysEmitCustomEvents = 1090 Args.hasArg(OPT_fxray_always_emit_customevents); 1091 Opts.XRayAlwaysEmitTypedEvents = 1092 Args.hasArg(OPT_fxray_always_emit_typedevents); 1093 Opts.XRayInstructionThreshold = 1094 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1095 Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops); 1096 1097 auto XRayInstrBundles = 1098 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1099 if (XRayInstrBundles.empty()) 1100 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1101 else 1102 for (const auto &A : XRayInstrBundles) 1103 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1104 Diags, Opts.XRayInstrumentationBundle); 1105 1106 Opts.PatchableFunctionEntryCount = 1107 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1108 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1109 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1110 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1111 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1112 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1113 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1114 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1115 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1116 1117 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1118 StringRef Name = A->getValue(); 1119 if (Name == "full") { 1120 Opts.CFProtectionReturn = 1; 1121 Opts.CFProtectionBranch = 1; 1122 } else if (Name == "return") 1123 Opts.CFProtectionReturn = 1; 1124 else if (Name == "branch") 1125 Opts.CFProtectionBranch = 1; 1126 else if (Name != "none") { 1127 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1128 Success = false; 1129 } 1130 } 1131 1132 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1133 OPT_compress_debug_sections_EQ)) { 1134 if (A->getOption().getID() == OPT_compress_debug_sections) { 1135 // TODO: be more clever about the compression type auto-detection 1136 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1137 } else { 1138 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1139 .Case("none", llvm::DebugCompressionType::None) 1140 .Case("zlib", llvm::DebugCompressionType::Z) 1141 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1142 .Default(llvm::DebugCompressionType::None); 1143 Opts.setCompressDebugSections(DCT); 1144 } 1145 } 1146 1147 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1148 Opts.DebugCompilationDir = 1149 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1150 for (auto *A : 1151 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1152 CodeGenOptions::BitcodeFileToLink F; 1153 F.Filename = A->getValue(); 1154 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1155 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1156 // When linking CUDA bitcode, propagate function attributes so that 1157 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1158 F.PropagateAttrs = true; 1159 F.Internalize = true; 1160 } 1161 Opts.LinkBitcodeFiles.push_back(F); 1162 } 1163 Opts.SanitizeCoverageType = 1164 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1165 Opts.SanitizeCoverageIndirectCalls = 1166 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1167 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1168 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1169 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1170 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1171 Opts.SanitizeCoverage8bitCounters = 1172 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1173 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1174 Opts.SanitizeCoverageTracePCGuard = 1175 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1176 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1177 Opts.SanitizeCoverageInline8bitCounters = 1178 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1179 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1180 Opts.SanitizeCoverageStackDepth = 1181 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1182 Opts.SanitizeMemoryTrackOrigins = 1183 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1184 Opts.SanitizeMemoryUseAfterDtor = 1185 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1186 OPT_fno_sanitize_memory_use_after_dtor, 1187 false); 1188 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1189 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1190 Opts.SanitizeCfiICallGeneralizePointers = 1191 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1192 Opts.SanitizeCfiCanonicalJumpTables = 1193 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1194 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1195 if (Arg *A = Args.getLastArg( 1196 OPT_fsanitize_address_poison_custom_array_cookie, 1197 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1198 Opts.SanitizeAddressPoisonCustomArrayCookie = 1199 A->getOption().getID() == 1200 OPT_fsanitize_address_poison_custom_array_cookie; 1201 } 1202 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1203 OPT_fno_sanitize_address_use_after_scope)) { 1204 Opts.SanitizeAddressUseAfterScope = 1205 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1206 } 1207 Opts.SanitizeAddressGlobalsDeadStripping = 1208 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1209 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1210 OPT_fno_sanitize_address_use_odr_indicator)) { 1211 Opts.SanitizeAddressUseOdrIndicator = 1212 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1213 } 1214 Opts.SSPBufferSize = 1215 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1216 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1217 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1218 StringRef Val = A->getValue(); 1219 unsigned StackAlignment = Opts.StackAlignment; 1220 Val.getAsInteger(10, StackAlignment); 1221 Opts.StackAlignment = StackAlignment; 1222 } 1223 1224 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1225 StringRef Val = A->getValue(); 1226 unsigned StackProbeSize = Opts.StackProbeSize; 1227 Val.getAsInteger(0, StackProbeSize); 1228 Opts.StackProbeSize = StackProbeSize; 1229 } 1230 1231 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1232 1233 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1234 1235 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1236 StringRef Name = A->getValue(); 1237 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1238 .Case("legacy", CodeGenOptions::Legacy) 1239 .Case("non-legacy", CodeGenOptions::NonLegacy) 1240 .Case("mixed", CodeGenOptions::Mixed) 1241 .Default(~0U); 1242 if (Method == ~0U) { 1243 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1244 Success = false; 1245 } else { 1246 Opts.setObjCDispatchMethod( 1247 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1248 } 1249 } 1250 1251 1252 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1253 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1254 1255 if (Args.getLastArg(OPT_femulated_tls) || 1256 Args.getLastArg(OPT_fno_emulated_tls)) { 1257 Opts.ExplicitEmulatedTLS = true; 1258 Opts.EmulatedTLS = 1259 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1260 } 1261 1262 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1263 StringRef Name = A->getValue(); 1264 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1265 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1266 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1267 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1268 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1269 .Default(~0U); 1270 if (Model == ~0U) { 1271 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1272 Success = false; 1273 } else { 1274 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1275 } 1276 } 1277 1278 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1279 1280 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1281 StringRef Val = A->getValue(); 1282 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1283 if (!Opts.FPDenormalMode.isValid()) 1284 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1285 } 1286 1287 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1288 StringRef Val = A->getValue(); 1289 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1290 if (!Opts.FP32DenormalMode.isValid()) 1291 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1292 } 1293 1294 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1295 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1296 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1297 } else { 1298 assert(A->getOption().matches(OPT_freg_struct_return)); 1299 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1300 } 1301 } 1302 1303 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1304 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1305 bool NeedLocTracking = false; 1306 1307 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1308 if (!Opts.OptRecordFile.empty()) 1309 NeedLocTracking = true; 1310 1311 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1312 Opts.OptRecordPasses = A->getValue(); 1313 NeedLocTracking = true; 1314 } 1315 1316 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1317 Opts.OptRecordFormat = A->getValue(); 1318 NeedLocTracking = true; 1319 } 1320 1321 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1322 Opts.OptimizationRemarkPattern = 1323 GenerateOptimizationRemarkRegex(Diags, Args, A); 1324 NeedLocTracking = true; 1325 } 1326 1327 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1328 Opts.OptimizationRemarkMissedPattern = 1329 GenerateOptimizationRemarkRegex(Diags, Args, A); 1330 NeedLocTracking = true; 1331 } 1332 1333 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1334 Opts.OptimizationRemarkAnalysisPattern = 1335 GenerateOptimizationRemarkRegex(Diags, Args, A); 1336 NeedLocTracking = true; 1337 } 1338 1339 Opts.DiagnosticsWithHotness = 1340 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1341 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1342 bool UsingProfile = UsingSampleProfile || 1343 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1344 1345 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1346 // An IR file will contain PGO as metadata 1347 IK.getLanguage() != Language::LLVM_IR) 1348 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1349 << "-fdiagnostics-show-hotness"; 1350 1351 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1352 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1353 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1354 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1355 << "-fdiagnostics-hotness-threshold="; 1356 1357 // If the user requested to use a sample profile for PGO, then the 1358 // backend will need to track source location information so the profile 1359 // can be incorporated into the IR. 1360 if (UsingSampleProfile) 1361 NeedLocTracking = true; 1362 1363 // If the user requested a flag that requires source locations available in 1364 // the backend, make sure that the backend tracks source location information. 1365 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1366 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1367 1368 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1369 1370 // Parse -fsanitize-recover= arguments. 1371 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1372 parseSanitizerKinds("-fsanitize-recover=", 1373 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1374 Opts.SanitizeRecover); 1375 parseSanitizerKinds("-fsanitize-trap=", 1376 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1377 Opts.SanitizeTrap); 1378 1379 Opts.CudaGpuBinaryFileName = 1380 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1381 1382 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1383 1384 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1385 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1386 1387 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1388 1389 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1390 1391 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1392 1393 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1394 1395 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1396 1397 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1398 1399 Opts.SymbolPartition = 1400 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1401 1402 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1403 return Success; 1404 } 1405 1406 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1407 ArgList &Args) { 1408 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1409 Opts.Targets = Args.getAllArgValues(OPT_MT); 1410 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1411 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1412 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1413 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1414 Opts.HeaderIncludeOutputFile = 1415 std::string(Args.getLastArgValue(OPT_header_include_file)); 1416 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1417 if (Args.hasArg(OPT_show_includes)) { 1418 // Writing both /showIncludes and preprocessor output to stdout 1419 // would produce interleaved output, so use stderr for /showIncludes. 1420 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1421 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1422 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1423 else 1424 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1425 } else { 1426 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1427 } 1428 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1429 Opts.ModuleDependencyOutputDir = 1430 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1431 if (Args.hasArg(OPT_MV)) 1432 Opts.OutputFormat = DependencyOutputFormat::NMake; 1433 // Add sanitizer blacklists as extra dependencies. 1434 // They won't be discovered by the regular preprocessor, so 1435 // we let make / ninja to know about this implicit dependency. 1436 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1437 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1438 StringRef Val = A->getValue(); 1439 if (Val.find('=') == StringRef::npos) 1440 Opts.ExtraDeps.push_back(std::string(Val)); 1441 } 1442 if (Opts.IncludeSystemHeaders) { 1443 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1444 StringRef Val = A->getValue(); 1445 if (Val.find('=') == StringRef::npos) 1446 Opts.ExtraDeps.push_back(std::string(Val)); 1447 } 1448 } 1449 } 1450 1451 // Propagate the extra dependencies. 1452 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1453 Opts.ExtraDeps.push_back(A->getValue()); 1454 } 1455 1456 // Only the -fmodule-file=<file> form. 1457 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1458 StringRef Val = A->getValue(); 1459 if (Val.find('=') == StringRef::npos) 1460 Opts.ExtraDeps.push_back(std::string(Val)); 1461 } 1462 } 1463 1464 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1465 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1466 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1467 // Support both clang's -f[no-]color-diagnostics and gcc's 1468 // -f[no-]diagnostics-colors[=never|always|auto]. 1469 enum { 1470 Colors_On, 1471 Colors_Off, 1472 Colors_Auto 1473 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1474 for (auto *A : Args) { 1475 const Option &O = A->getOption(); 1476 if (O.matches(options::OPT_fcolor_diagnostics) || 1477 O.matches(options::OPT_fdiagnostics_color)) { 1478 ShowColors = Colors_On; 1479 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1480 O.matches(options::OPT_fno_diagnostics_color)) { 1481 ShowColors = Colors_Off; 1482 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1483 StringRef Value(A->getValue()); 1484 if (Value == "always") 1485 ShowColors = Colors_On; 1486 else if (Value == "never") 1487 ShowColors = Colors_Off; 1488 else if (Value == "auto") 1489 ShowColors = Colors_Auto; 1490 } 1491 } 1492 return ShowColors == Colors_On || 1493 (ShowColors == Colors_Auto && 1494 llvm::sys::Process::StandardErrHasColors()); 1495 } 1496 1497 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1498 DiagnosticsEngine *Diags) { 1499 bool Success = true; 1500 for (const auto &Prefix : VerifyPrefixes) { 1501 // Every prefix must start with a letter and contain only alphanumeric 1502 // characters, hyphens, and underscores. 1503 auto BadChar = llvm::find_if(Prefix, [](char C) { 1504 return !isAlphanumeric(C) && C != '-' && C != '_'; 1505 }); 1506 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1507 Success = false; 1508 if (Diags) { 1509 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1510 Diags->Report(diag::note_drv_verify_prefix_spelling); 1511 } 1512 } 1513 } 1514 return Success; 1515 } 1516 1517 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1518 DiagnosticsEngine *Diags, 1519 bool DefaultDiagColor) { 1520 bool Success = true; 1521 1522 Opts.DiagnosticLogFile = 1523 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1524 if (Arg *A = 1525 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1526 Opts.DiagnosticSerializationFile = A->getValue(); 1527 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1528 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1529 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1530 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1531 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1532 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1533 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1534 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1535 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1536 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1537 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1538 1539 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1540 1541 // Default behavior is to not to show note include stacks. 1542 Opts.ShowNoteIncludeStack = false; 1543 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1544 OPT_fno_diagnostics_show_note_include_stack)) 1545 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1546 Opts.ShowNoteIncludeStack = true; 1547 1548 StringRef ShowOverloads = 1549 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1550 if (ShowOverloads == "best") 1551 Opts.setShowOverloads(Ovl_Best); 1552 else if (ShowOverloads == "all") 1553 Opts.setShowOverloads(Ovl_All); 1554 else { 1555 Success = false; 1556 if (Diags) 1557 Diags->Report(diag::err_drv_invalid_value) 1558 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1559 << ShowOverloads; 1560 } 1561 1562 StringRef ShowCategory = 1563 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1564 if (ShowCategory == "none") 1565 Opts.ShowCategories = 0; 1566 else if (ShowCategory == "id") 1567 Opts.ShowCategories = 1; 1568 else if (ShowCategory == "name") 1569 Opts.ShowCategories = 2; 1570 else { 1571 Success = false; 1572 if (Diags) 1573 Diags->Report(diag::err_drv_invalid_value) 1574 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1575 << ShowCategory; 1576 } 1577 1578 StringRef Format = 1579 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1580 if (Format == "clang") 1581 Opts.setFormat(DiagnosticOptions::Clang); 1582 else if (Format == "msvc") 1583 Opts.setFormat(DiagnosticOptions::MSVC); 1584 else if (Format == "msvc-fallback") { 1585 Opts.setFormat(DiagnosticOptions::MSVC); 1586 Opts.CLFallbackMode = true; 1587 } else if (Format == "vi") 1588 Opts.setFormat(DiagnosticOptions::Vi); 1589 else { 1590 Success = false; 1591 if (Diags) 1592 Diags->Report(diag::err_drv_invalid_value) 1593 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1594 << Format; 1595 } 1596 1597 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1598 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1599 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1600 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1601 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1602 if (Args.hasArg(OPT_verify)) 1603 Opts.VerifyPrefixes.push_back("expected"); 1604 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1605 // then sort it to prepare for fast lookup using std::binary_search. 1606 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1607 Opts.VerifyDiagnostics = false; 1608 Success = false; 1609 } 1610 else 1611 llvm::sort(Opts.VerifyPrefixes); 1612 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1613 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1614 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1615 Diags, DiagMask); 1616 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1617 DiagMask = DiagnosticLevelMask::All; 1618 Opts.setVerifyIgnoreUnexpected(DiagMask); 1619 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1620 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1621 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1622 Opts.MacroBacktraceLimit = 1623 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1624 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1625 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1626 Args, OPT_ftemplate_backtrace_limit, 1627 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1628 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1629 Args, OPT_fconstexpr_backtrace_limit, 1630 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1631 Opts.SpellCheckingLimit = getLastArgIntValue( 1632 Args, OPT_fspell_checking_limit, 1633 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1634 Opts.SnippetLineLimit = getLastArgIntValue( 1635 Args, OPT_fcaret_diagnostics_max_lines, 1636 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1637 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1638 DiagnosticOptions::DefaultTabStop, Diags); 1639 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1640 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1641 if (Diags) 1642 Diags->Report(diag::warn_ignoring_ftabstop_value) 1643 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1644 } 1645 Opts.MessageLength = 1646 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1647 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1648 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1649 1650 return Success; 1651 } 1652 1653 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1654 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1655 } 1656 1657 /// Parse the argument to the -ftest-module-file-extension 1658 /// command-line argument. 1659 /// 1660 /// \returns true on error, false on success. 1661 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1662 std::string &BlockName, 1663 unsigned &MajorVersion, 1664 unsigned &MinorVersion, 1665 bool &Hashed, 1666 std::string &UserInfo) { 1667 SmallVector<StringRef, 5> Args; 1668 Arg.split(Args, ':', 5); 1669 if (Args.size() < 5) 1670 return true; 1671 1672 BlockName = std::string(Args[0]); 1673 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1674 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1675 if (Args[3].getAsInteger(2, Hashed)) return true; 1676 if (Args.size() > 4) 1677 UserInfo = std::string(Args[4]); 1678 return false; 1679 } 1680 1681 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1682 DiagnosticsEngine &Diags, 1683 bool &IsHeaderFile) { 1684 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1685 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1686 switch (A->getOption().getID()) { 1687 default: 1688 llvm_unreachable("Invalid option in group!"); 1689 case OPT_ast_list: 1690 Opts.ProgramAction = frontend::ASTDeclList; break; 1691 case OPT_ast_dump_all_EQ: 1692 case OPT_ast_dump_EQ: { 1693 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1694 .CaseLower("default", ADOF_Default) 1695 .CaseLower("json", ADOF_JSON) 1696 .Default(std::numeric_limits<unsigned>::max()); 1697 1698 if (Val != std::numeric_limits<unsigned>::max()) 1699 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1700 else { 1701 Diags.Report(diag::err_drv_invalid_value) 1702 << A->getAsString(Args) << A->getValue(); 1703 Opts.ASTDumpFormat = ADOF_Default; 1704 } 1705 LLVM_FALLTHROUGH; 1706 } 1707 case OPT_ast_dump: 1708 case OPT_ast_dump_all: 1709 case OPT_ast_dump_lookups: 1710 Opts.ProgramAction = frontend::ASTDump; break; 1711 case OPT_ast_print: 1712 Opts.ProgramAction = frontend::ASTPrint; break; 1713 case OPT_ast_view: 1714 Opts.ProgramAction = frontend::ASTView; break; 1715 case OPT_compiler_options_dump: 1716 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1717 case OPT_dump_raw_tokens: 1718 Opts.ProgramAction = frontend::DumpRawTokens; break; 1719 case OPT_dump_tokens: 1720 Opts.ProgramAction = frontend::DumpTokens; break; 1721 case OPT_S: 1722 Opts.ProgramAction = frontend::EmitAssembly; break; 1723 case OPT_emit_llvm_bc: 1724 Opts.ProgramAction = frontend::EmitBC; break; 1725 case OPT_emit_html: 1726 Opts.ProgramAction = frontend::EmitHTML; break; 1727 case OPT_emit_llvm: 1728 Opts.ProgramAction = frontend::EmitLLVM; break; 1729 case OPT_emit_llvm_only: 1730 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1731 case OPT_emit_codegen_only: 1732 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1733 case OPT_emit_obj: 1734 Opts.ProgramAction = frontend::EmitObj; break; 1735 case OPT_fixit_EQ: 1736 Opts.FixItSuffix = A->getValue(); 1737 LLVM_FALLTHROUGH; 1738 case OPT_fixit: 1739 Opts.ProgramAction = frontend::FixIt; break; 1740 case OPT_emit_module: 1741 Opts.ProgramAction = frontend::GenerateModule; break; 1742 case OPT_emit_module_interface: 1743 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1744 case OPT_emit_header_module: 1745 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1746 case OPT_emit_pch: 1747 Opts.ProgramAction = frontend::GeneratePCH; break; 1748 case OPT_emit_interface_stubs: { 1749 StringRef ArgStr = 1750 Args.hasArg(OPT_interface_stub_version_EQ) 1751 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1752 : "experimental-ifs-v2"; 1753 if (ArgStr == "experimental-yaml-elf-v1" || 1754 ArgStr == "experimental-ifs-v1" || 1755 ArgStr == "experimental-tapi-elf-v1") { 1756 std::string ErrorMessage = 1757 "Invalid interface stub format: " + ArgStr.str() + 1758 " is deprecated."; 1759 Diags.Report(diag::err_drv_invalid_value) 1760 << "Must specify a valid interface stub format type, ie: " 1761 "-interface-stub-version=experimental-ifs-v2" 1762 << ErrorMessage; 1763 } else if (!ArgStr.startswith("experimental-ifs-")) { 1764 std::string ErrorMessage = 1765 "Invalid interface stub format: " + ArgStr.str() + "."; 1766 Diags.Report(diag::err_drv_invalid_value) 1767 << "Must specify a valid interface stub format type, ie: " 1768 "-interface-stub-version=experimental-ifs-v2" 1769 << ErrorMessage; 1770 } else { 1771 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1772 } 1773 break; 1774 } 1775 case OPT_init_only: 1776 Opts.ProgramAction = frontend::InitOnly; break; 1777 case OPT_fsyntax_only: 1778 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1779 case OPT_module_file_info: 1780 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1781 case OPT_verify_pch: 1782 Opts.ProgramAction = frontend::VerifyPCH; break; 1783 case OPT_print_preamble: 1784 Opts.ProgramAction = frontend::PrintPreamble; break; 1785 case OPT_E: 1786 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1787 case OPT_templight_dump: 1788 Opts.ProgramAction = frontend::TemplightDump; break; 1789 case OPT_rewrite_macros: 1790 Opts.ProgramAction = frontend::RewriteMacros; break; 1791 case OPT_rewrite_objc: 1792 Opts.ProgramAction = frontend::RewriteObjC; break; 1793 case OPT_rewrite_test: 1794 Opts.ProgramAction = frontend::RewriteTest; break; 1795 case OPT_analyze: 1796 Opts.ProgramAction = frontend::RunAnalysis; break; 1797 case OPT_migrate: 1798 Opts.ProgramAction = frontend::MigrateSource; break; 1799 case OPT_Eonly: 1800 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1801 case OPT_print_dependency_directives_minimized_source: 1802 Opts.ProgramAction = 1803 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1804 break; 1805 } 1806 } 1807 1808 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1809 Opts.Plugins.emplace_back(A->getValue(0)); 1810 Opts.ProgramAction = frontend::PluginAction; 1811 Opts.ActionName = A->getValue(); 1812 } 1813 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1814 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1815 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1816 1817 for (const std::string &Arg : 1818 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1819 std::string BlockName; 1820 unsigned MajorVersion; 1821 unsigned MinorVersion; 1822 bool Hashed; 1823 std::string UserInfo; 1824 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1825 MinorVersion, Hashed, UserInfo)) { 1826 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1827 1828 continue; 1829 } 1830 1831 // Add the testing module file extension. 1832 Opts.ModuleFileExtensions.push_back( 1833 std::make_shared<TestModuleFileExtension>( 1834 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1835 } 1836 1837 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1838 Opts.CodeCompletionAt = 1839 ParsedSourceLocation::FromString(A->getValue()); 1840 if (Opts.CodeCompletionAt.FileName.empty()) 1841 Diags.Report(diag::err_drv_invalid_value) 1842 << A->getAsString(Args) << A->getValue(); 1843 } 1844 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1845 1846 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1847 Opts.Plugins = Args.getAllArgValues(OPT_load); 1848 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1849 Opts.ShowHelp = Args.hasArg(OPT_help); 1850 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1851 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1852 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1853 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1854 Opts.TimeTraceGranularity = getLastArgIntValue( 1855 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1856 Opts.ShowVersion = Args.hasArg(OPT_version); 1857 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1858 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1859 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1860 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1861 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1862 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1863 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1864 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1865 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1866 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1867 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1868 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1869 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1870 // Only the -fmodule-file=<file> form. 1871 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1872 StringRef Val = A->getValue(); 1873 if (Val.find('=') == StringRef::npos) 1874 Opts.ModuleFiles.push_back(std::string(Val)); 1875 } 1876 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1877 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1878 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1879 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1880 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 1881 1882 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1883 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1884 << "-emit-module"; 1885 1886 Opts.CodeCompleteOpts.IncludeMacros 1887 = Args.hasArg(OPT_code_completion_macros); 1888 Opts.CodeCompleteOpts.IncludeCodePatterns 1889 = Args.hasArg(OPT_code_completion_patterns); 1890 Opts.CodeCompleteOpts.IncludeGlobals 1891 = !Args.hasArg(OPT_no_code_completion_globals); 1892 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1893 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1894 Opts.CodeCompleteOpts.IncludeBriefComments 1895 = Args.hasArg(OPT_code_completion_brief_comments); 1896 Opts.CodeCompleteOpts.IncludeFixIts 1897 = Args.hasArg(OPT_code_completion_with_fixits); 1898 1899 Opts.OverrideRecordLayoutsFile = 1900 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1901 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1902 if (Args.hasArg(OPT_aux_target_cpu)) 1903 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1904 if (Args.hasArg(OPT_aux_target_feature)) 1905 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1906 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1907 1908 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1909 OPT_arcmt_modify, 1910 OPT_arcmt_migrate)) { 1911 switch (A->getOption().getID()) { 1912 default: 1913 llvm_unreachable("missed a case"); 1914 case OPT_arcmt_check: 1915 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1916 break; 1917 case OPT_arcmt_modify: 1918 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1919 break; 1920 case OPT_arcmt_migrate: 1921 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1922 break; 1923 } 1924 } 1925 Opts.MTMigrateDir = 1926 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1927 Opts.ARCMTMigrateReportOut = 1928 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1929 Opts.ARCMTMigrateEmitARCErrors 1930 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1931 1932 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1933 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1934 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1935 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1936 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1937 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1938 if (Args.hasArg(OPT_objcmt_migrate_property)) 1939 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1940 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1941 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1942 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1943 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1944 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1945 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1946 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1947 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1948 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1949 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1950 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1951 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1952 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1953 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1954 if (Args.hasArg(OPT_objcmt_atomic_property)) 1955 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1956 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1957 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1958 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1959 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1960 if (Args.hasArg(OPT_objcmt_migrate_all)) 1961 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1962 1963 Opts.ObjCMTWhiteListPath = 1964 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 1965 1966 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1967 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1968 Diags.Report(diag::err_drv_argument_not_allowed_with) 1969 << "ARC migration" << "ObjC migration"; 1970 } 1971 1972 InputKind DashX(Language::Unknown); 1973 if (const Arg *A = Args.getLastArg(OPT_x)) { 1974 StringRef XValue = A->getValue(); 1975 1976 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1977 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1978 bool Preprocessed = XValue.consume_back("-cpp-output"); 1979 bool ModuleMap = XValue.consume_back("-module-map"); 1980 IsHeaderFile = 1981 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1982 1983 // Principal languages. 1984 DashX = llvm::StringSwitch<InputKind>(XValue) 1985 .Case("c", Language::C) 1986 .Case("cl", Language::OpenCL) 1987 .Case("cuda", Language::CUDA) 1988 .Case("hip", Language::HIP) 1989 .Case("c++", Language::CXX) 1990 .Case("objective-c", Language::ObjC) 1991 .Case("objective-c++", Language::ObjCXX) 1992 .Case("renderscript", Language::RenderScript) 1993 .Default(Language::Unknown); 1994 1995 // "objc[++]-cpp-output" is an acceptable synonym for 1996 // "objective-c[++]-cpp-output". 1997 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1998 DashX = llvm::StringSwitch<InputKind>(XValue) 1999 .Case("objc", Language::ObjC) 2000 .Case("objc++", Language::ObjCXX) 2001 .Default(Language::Unknown); 2002 2003 // Some special cases cannot be combined with suffixes. 2004 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2005 DashX = llvm::StringSwitch<InputKind>(XValue) 2006 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2007 .Case("assembler-with-cpp", Language::Asm) 2008 .Cases("ast", "pcm", 2009 InputKind(Language::Unknown, InputKind::Precompiled)) 2010 .Case("ir", Language::LLVM_IR) 2011 .Default(Language::Unknown); 2012 2013 if (DashX.isUnknown()) 2014 Diags.Report(diag::err_drv_invalid_value) 2015 << A->getAsString(Args) << A->getValue(); 2016 2017 if (Preprocessed) 2018 DashX = DashX.getPreprocessed(); 2019 if (ModuleMap) 2020 DashX = DashX.withFormat(InputKind::ModuleMap); 2021 } 2022 2023 // '-' is the default input if none is given. 2024 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2025 Opts.Inputs.clear(); 2026 if (Inputs.empty()) 2027 Inputs.push_back("-"); 2028 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2029 InputKind IK = DashX; 2030 if (IK.isUnknown()) { 2031 IK = FrontendOptions::getInputKindForExtension( 2032 StringRef(Inputs[i]).rsplit('.').second); 2033 // FIXME: Warn on this? 2034 if (IK.isUnknown()) 2035 IK = Language::C; 2036 // FIXME: Remove this hack. 2037 if (i == 0) 2038 DashX = IK; 2039 } 2040 2041 bool IsSystem = false; 2042 2043 // The -emit-module action implicitly takes a module map. 2044 if (Opts.ProgramAction == frontend::GenerateModule && 2045 IK.getFormat() == InputKind::Source) { 2046 IK = IK.withFormat(InputKind::ModuleMap); 2047 IsSystem = Opts.IsSystemModule; 2048 } 2049 2050 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2051 } 2052 2053 return DashX; 2054 } 2055 2056 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2057 void *MainAddr) { 2058 std::string ClangExecutable = 2059 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2060 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2061 } 2062 2063 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2064 const std::string &WorkingDir) { 2065 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2066 Opts.Verbose = Args.hasArg(OPT_v); 2067 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2068 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2069 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2070 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2071 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2072 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2073 2074 // Canonicalize -fmodules-cache-path before storing it. 2075 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2076 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2077 if (WorkingDir.empty()) 2078 llvm::sys::fs::make_absolute(P); 2079 else 2080 llvm::sys::fs::make_absolute(WorkingDir, P); 2081 } 2082 llvm::sys::path::remove_dots(P); 2083 Opts.ModuleCachePath = std::string(P.str()); 2084 2085 Opts.ModuleUserBuildPath = 2086 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2087 // Only the -fmodule-file=<name>=<file> form. 2088 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2089 StringRef Val = A->getValue(); 2090 if (Val.find('=') != StringRef::npos){ 2091 auto Split = Val.split('='); 2092 Opts.PrebuiltModuleFiles.insert( 2093 {std::string(Split.first), std::string(Split.second)}); 2094 } 2095 } 2096 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2097 Opts.AddPrebuiltModulePath(A->getValue()); 2098 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2099 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2100 Opts.ModulesStrictContextHash = Args.hasArg(OPT_fmodules_strict_context_hash); 2101 Opts.ModulesValidateDiagnosticOptions = 2102 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2103 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2104 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2105 Opts.ModuleCachePruneInterval = 2106 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2107 Opts.ModuleCachePruneAfter = 2108 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2109 Opts.ModulesValidateOncePerBuildSession = 2110 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2111 Opts.BuildSessionTimestamp = 2112 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2113 Opts.ModulesValidateSystemHeaders = 2114 Args.hasArg(OPT_fmodules_validate_system_headers); 2115 Opts.ValidateASTInputFilesContent = 2116 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2117 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2118 Opts.ModuleFormat = A->getValue(); 2119 2120 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2121 StringRef MacroDef = A->getValue(); 2122 Opts.ModulesIgnoreMacros.insert( 2123 llvm::CachedHashString(MacroDef.split('=').first)); 2124 } 2125 2126 // Add -I..., -F..., and -index-header-map options in order. 2127 bool IsIndexHeaderMap = false; 2128 bool IsSysrootSpecified = 2129 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2130 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2131 if (A->getOption().matches(OPT_index_header_map)) { 2132 // -index-header-map applies to the next -I or -F. 2133 IsIndexHeaderMap = true; 2134 continue; 2135 } 2136 2137 frontend::IncludeDirGroup Group = 2138 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2139 2140 bool IsFramework = A->getOption().matches(OPT_F); 2141 std::string Path = A->getValue(); 2142 2143 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2144 SmallString<32> Buffer; 2145 llvm::sys::path::append(Buffer, Opts.Sysroot, 2146 llvm::StringRef(A->getValue()).substr(1)); 2147 Path = std::string(Buffer.str()); 2148 } 2149 2150 Opts.AddPath(Path, Group, IsFramework, 2151 /*IgnoreSysroot*/ true); 2152 IsIndexHeaderMap = false; 2153 } 2154 2155 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2156 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2157 for (const auto *A : 2158 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2159 if (A->getOption().matches(OPT_iprefix)) 2160 Prefix = A->getValue(); 2161 else if (A->getOption().matches(OPT_iwithprefix)) 2162 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2163 else 2164 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2165 } 2166 2167 for (const auto *A : Args.filtered(OPT_idirafter)) 2168 Opts.AddPath(A->getValue(), frontend::After, false, true); 2169 for (const auto *A : Args.filtered(OPT_iquote)) 2170 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2171 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2172 Opts.AddPath(A->getValue(), frontend::System, false, 2173 !A->getOption().matches(OPT_iwithsysroot)); 2174 for (const auto *A : Args.filtered(OPT_iframework)) 2175 Opts.AddPath(A->getValue(), frontend::System, true, true); 2176 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2177 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2178 /*IgnoreSysRoot=*/false); 2179 2180 // Add the paths for the various language specific isystem flags. 2181 for (const auto *A : Args.filtered(OPT_c_isystem)) 2182 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2183 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2184 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2185 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2186 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2187 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2188 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2189 2190 // Add the internal paths from a driver that detects standard include paths. 2191 for (const auto *A : 2192 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2193 frontend::IncludeDirGroup Group = frontend::System; 2194 if (A->getOption().matches(OPT_internal_externc_isystem)) 2195 Group = frontend::ExternCSystem; 2196 Opts.AddPath(A->getValue(), Group, false, true); 2197 } 2198 2199 // Add the path prefixes which are implicitly treated as being system headers. 2200 for (const auto *A : 2201 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2202 Opts.AddSystemHeaderPrefix( 2203 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2204 2205 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2206 Opts.AddVFSOverlayFile(A->getValue()); 2207 } 2208 2209 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2210 const llvm::Triple &T, 2211 PreprocessorOptions &PPOpts, 2212 LangStandard::Kind LangStd) { 2213 // Set some properties which depend solely on the input kind; it would be nice 2214 // to move these to the language standard, and have the driver resolve the 2215 // input kind + language standard. 2216 // 2217 // FIXME: Perhaps a better model would be for a single source file to have 2218 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2219 // simultaneously active? 2220 if (IK.getLanguage() == Language::Asm) { 2221 Opts.AsmPreprocessor = 1; 2222 } else if (IK.isObjectiveC()) { 2223 Opts.ObjC = 1; 2224 } 2225 2226 if (LangStd == LangStandard::lang_unspecified) { 2227 // Based on the base language, pick one. 2228 switch (IK.getLanguage()) { 2229 case Language::Unknown: 2230 case Language::LLVM_IR: 2231 llvm_unreachable("Invalid input kind!"); 2232 case Language::OpenCL: 2233 LangStd = LangStandard::lang_opencl10; 2234 break; 2235 case Language::CUDA: 2236 LangStd = LangStandard::lang_cuda; 2237 break; 2238 case Language::Asm: 2239 case Language::C: 2240 #if defined(CLANG_DEFAULT_STD_C) 2241 LangStd = CLANG_DEFAULT_STD_C; 2242 #else 2243 // The PS4 uses C99 as the default C standard. 2244 if (T.isPS4()) 2245 LangStd = LangStandard::lang_gnu99; 2246 else 2247 LangStd = LangStandard::lang_gnu17; 2248 #endif 2249 break; 2250 case Language::ObjC: 2251 #if defined(CLANG_DEFAULT_STD_C) 2252 LangStd = CLANG_DEFAULT_STD_C; 2253 #else 2254 LangStd = LangStandard::lang_gnu11; 2255 #endif 2256 break; 2257 case Language::CXX: 2258 case Language::ObjCXX: 2259 #if defined(CLANG_DEFAULT_STD_CXX) 2260 LangStd = CLANG_DEFAULT_STD_CXX; 2261 #else 2262 LangStd = LangStandard::lang_gnucxx14; 2263 #endif 2264 break; 2265 case Language::RenderScript: 2266 LangStd = LangStandard::lang_c99; 2267 break; 2268 case Language::HIP: 2269 LangStd = LangStandard::lang_hip; 2270 break; 2271 } 2272 } 2273 2274 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2275 Opts.LineComment = Std.hasLineComments(); 2276 Opts.C99 = Std.isC99(); 2277 Opts.C11 = Std.isC11(); 2278 Opts.C17 = Std.isC17(); 2279 Opts.C2x = Std.isC2x(); 2280 Opts.CPlusPlus = Std.isCPlusPlus(); 2281 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2282 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2283 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2284 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2285 Opts.Digraphs = Std.hasDigraphs(); 2286 Opts.GNUMode = Std.isGNUMode(); 2287 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2288 Opts.GNUCVersion = 0; 2289 Opts.HexFloats = Std.hasHexFloats(); 2290 Opts.ImplicitInt = Std.hasImplicitInt(); 2291 2292 // Set OpenCL Version. 2293 Opts.OpenCL = Std.isOpenCL(); 2294 if (LangStd == LangStandard::lang_opencl10) 2295 Opts.OpenCLVersion = 100; 2296 else if (LangStd == LangStandard::lang_opencl11) 2297 Opts.OpenCLVersion = 110; 2298 else if (LangStd == LangStandard::lang_opencl12) 2299 Opts.OpenCLVersion = 120; 2300 else if (LangStd == LangStandard::lang_opencl20) 2301 Opts.OpenCLVersion = 200; 2302 else if (LangStd == LangStandard::lang_openclcpp) 2303 Opts.OpenCLCPlusPlusVersion = 100; 2304 2305 // OpenCL has some additional defaults. 2306 if (Opts.OpenCL) { 2307 Opts.AltiVec = 0; 2308 Opts.ZVector = 0; 2309 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2310 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2311 Opts.NativeHalfType = 1; 2312 Opts.NativeHalfArgsAndReturns = 1; 2313 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2314 2315 // Include default header file for OpenCL. 2316 if (Opts.IncludeDefaultHeader) { 2317 if (Opts.DeclareOpenCLBuiltins) { 2318 // Only include base header file for builtin types and constants. 2319 PPOpts.Includes.push_back("opencl-c-base.h"); 2320 } else { 2321 PPOpts.Includes.push_back("opencl-c.h"); 2322 } 2323 } 2324 } 2325 2326 Opts.HIP = IK.getLanguage() == Language::HIP; 2327 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2328 if (Opts.CUDA) 2329 // Set default FP_CONTRACT to FAST. 2330 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2331 2332 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2333 if (Opts.RenderScript) { 2334 Opts.NativeHalfType = 1; 2335 Opts.NativeHalfArgsAndReturns = 1; 2336 } 2337 2338 // OpenCL and C++ both have bool, true, false keywords. 2339 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2340 2341 // OpenCL has half keyword 2342 Opts.Half = Opts.OpenCL; 2343 2344 // C++ has wchar_t keyword. 2345 Opts.WChar = Opts.CPlusPlus; 2346 2347 Opts.GNUKeywords = Opts.GNUMode; 2348 Opts.CXXOperatorNames = Opts.CPlusPlus; 2349 2350 Opts.AlignedAllocation = Opts.CPlusPlus17; 2351 2352 Opts.DollarIdents = !Opts.AsmPreprocessor; 2353 2354 // Enable [[]] attributes in C++11 and C2x by default. 2355 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2356 } 2357 2358 /// Attempt to parse a visibility value out of the given argument. 2359 static Visibility parseVisibility(Arg *arg, ArgList &args, 2360 DiagnosticsEngine &diags) { 2361 StringRef value = arg->getValue(); 2362 if (value == "default") { 2363 return DefaultVisibility; 2364 } else if (value == "hidden" || value == "internal") { 2365 return HiddenVisibility; 2366 } else if (value == "protected") { 2367 // FIXME: diagnose if target does not support protected visibility 2368 return ProtectedVisibility; 2369 } 2370 2371 diags.Report(diag::err_drv_invalid_value) 2372 << arg->getAsString(args) << value; 2373 return DefaultVisibility; 2374 } 2375 2376 /// Check if input file kind and language standard are compatible. 2377 static bool IsInputCompatibleWithStandard(InputKind IK, 2378 const LangStandard &S) { 2379 switch (IK.getLanguage()) { 2380 case Language::Unknown: 2381 case Language::LLVM_IR: 2382 llvm_unreachable("should not parse language flags for this input"); 2383 2384 case Language::C: 2385 case Language::ObjC: 2386 case Language::RenderScript: 2387 return S.getLanguage() == Language::C; 2388 2389 case Language::OpenCL: 2390 return S.getLanguage() == Language::OpenCL; 2391 2392 case Language::CXX: 2393 case Language::ObjCXX: 2394 return S.getLanguage() == Language::CXX; 2395 2396 case Language::CUDA: 2397 // FIXME: What -std= values should be permitted for CUDA compilations? 2398 return S.getLanguage() == Language::CUDA || 2399 S.getLanguage() == Language::CXX; 2400 2401 case Language::HIP: 2402 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2403 2404 case Language::Asm: 2405 // Accept (and ignore) all -std= values. 2406 // FIXME: The -std= value is not ignored; it affects the tokenization 2407 // and preprocessing rules if we're preprocessing this asm input. 2408 return true; 2409 } 2410 2411 llvm_unreachable("unexpected input language"); 2412 } 2413 2414 /// Get language name for given input kind. 2415 static const StringRef GetInputKindName(InputKind IK) { 2416 switch (IK.getLanguage()) { 2417 case Language::C: 2418 return "C"; 2419 case Language::ObjC: 2420 return "Objective-C"; 2421 case Language::CXX: 2422 return "C++"; 2423 case Language::ObjCXX: 2424 return "Objective-C++"; 2425 case Language::OpenCL: 2426 return "OpenCL"; 2427 case Language::CUDA: 2428 return "CUDA"; 2429 case Language::RenderScript: 2430 return "RenderScript"; 2431 case Language::HIP: 2432 return "HIP"; 2433 2434 case Language::Asm: 2435 return "Asm"; 2436 case Language::LLVM_IR: 2437 return "LLVM IR"; 2438 2439 case Language::Unknown: 2440 break; 2441 } 2442 llvm_unreachable("unknown input language"); 2443 } 2444 2445 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2446 const TargetOptions &TargetOpts, 2447 PreprocessorOptions &PPOpts, 2448 DiagnosticsEngine &Diags) { 2449 // FIXME: Cleanup per-file based stuff. 2450 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2451 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2452 LangStd = LangStandard::getLangKind(A->getValue()); 2453 if (LangStd == LangStandard::lang_unspecified) { 2454 Diags.Report(diag::err_drv_invalid_value) 2455 << A->getAsString(Args) << A->getValue(); 2456 // Report supported standards with short description. 2457 for (unsigned KindValue = 0; 2458 KindValue != LangStandard::lang_unspecified; 2459 ++KindValue) { 2460 const LangStandard &Std = LangStandard::getLangStandardForKind( 2461 static_cast<LangStandard::Kind>(KindValue)); 2462 if (IsInputCompatibleWithStandard(IK, Std)) { 2463 auto Diag = Diags.Report(diag::note_drv_use_standard); 2464 Diag << Std.getName() << Std.getDescription(); 2465 unsigned NumAliases = 0; 2466 #define LANGSTANDARD(id, name, lang, desc, features) 2467 #define LANGSTANDARD_ALIAS(id, alias) \ 2468 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2469 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2470 #include "clang/Basic/LangStandards.def" 2471 Diag << NumAliases; 2472 #define LANGSTANDARD(id, name, lang, desc, features) 2473 #define LANGSTANDARD_ALIAS(id, alias) \ 2474 if (KindValue == LangStandard::lang_##id) Diag << alias; 2475 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2476 #include "clang/Basic/LangStandards.def" 2477 } 2478 } 2479 } else { 2480 // Valid standard, check to make sure language and standard are 2481 // compatible. 2482 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2483 if (!IsInputCompatibleWithStandard(IK, Std)) { 2484 Diags.Report(diag::err_drv_argument_not_allowed_with) 2485 << A->getAsString(Args) << GetInputKindName(IK); 2486 } 2487 } 2488 } 2489 2490 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2491 Opts.DllExportInlines = false; 2492 2493 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2494 StringRef Name = A->getValue(); 2495 if (Name == "full" || Name == "branch") { 2496 Opts.CFProtectionBranch = 1; 2497 } 2498 } 2499 // -cl-std only applies for OpenCL language standards. 2500 // Override the -std option in this case. 2501 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2502 LangStandard::Kind OpenCLLangStd 2503 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2504 .Cases("cl", "CL", LangStandard::lang_opencl10) 2505 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2506 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2507 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2508 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2509 .Default(LangStandard::lang_unspecified); 2510 2511 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2512 Diags.Report(diag::err_drv_invalid_value) 2513 << A->getAsString(Args) << A->getValue(); 2514 } 2515 else 2516 LangStd = OpenCLLangStd; 2517 } 2518 2519 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2520 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2521 if (Opts.SYCL) { 2522 // -sycl-std applies to any SYCL source, not only those containing kernels, 2523 // but also those using the SYCL API 2524 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2525 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2526 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2527 .Default(0U); 2528 2529 if (Opts.SYCLVersion == 0U) { 2530 // User has passed an invalid value to the flag, this is an error 2531 Diags.Report(diag::err_drv_invalid_value) 2532 << A->getAsString(Args) << A->getValue(); 2533 } 2534 } 2535 } 2536 2537 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2538 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2539 2540 llvm::Triple T(TargetOpts.Triple); 2541 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2542 2543 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2544 // This option should be deprecated for CL > 1.0 because 2545 // this option was added for compatibility with OpenCL 1.0. 2546 if (Args.getLastArg(OPT_cl_strict_aliasing) 2547 && Opts.OpenCLVersion > 100) { 2548 Diags.Report(diag::warn_option_invalid_ocl_version) 2549 << Opts.getOpenCLVersionTuple().getAsString() 2550 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2551 } 2552 2553 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2554 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2555 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2556 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2557 // name, as it doesn't seem a useful distinction. 2558 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2559 Opts.GNUKeywords); 2560 2561 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2562 2563 if (Args.hasArg(OPT_fno_operator_names)) 2564 Opts.CXXOperatorNames = 0; 2565 2566 if (Args.hasArg(OPT_fcuda_is_device)) 2567 Opts.CUDAIsDevice = 1; 2568 2569 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2570 Opts.CUDAAllowVariadicFunctions = 1; 2571 2572 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2573 Opts.CUDAHostDeviceConstexpr = 0; 2574 2575 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2576 Opts.CUDADeviceApproxTranscendentals = 1; 2577 2578 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2579 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2580 if (Opts.HIP) 2581 Opts.GPUAllowDeviceInit = 1; 2582 else 2583 Diags.Report(diag::warn_ignored_hip_only_option) 2584 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2585 } 2586 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2587 if (Opts.HIP) 2588 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2589 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2590 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2591 Diags.Report(diag::warn_ignored_hip_only_option) 2592 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2593 2594 if (Opts.ObjC) { 2595 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2596 StringRef value = arg->getValue(); 2597 if (Opts.ObjCRuntime.tryParse(value)) 2598 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2599 } 2600 2601 if (Args.hasArg(OPT_fobjc_gc_only)) 2602 Opts.setGC(LangOptions::GCOnly); 2603 else if (Args.hasArg(OPT_fobjc_gc)) 2604 Opts.setGC(LangOptions::HybridGC); 2605 else if (Args.hasArg(OPT_fobjc_arc)) { 2606 Opts.ObjCAutoRefCount = 1; 2607 if (!Opts.ObjCRuntime.allowsARC()) 2608 Diags.Report(diag::err_arc_unsupported_on_runtime); 2609 } 2610 2611 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2612 // whether the feature is actually enabled. This is predominantly 2613 // determined by -fobjc-runtime, but we allow it to be overridden 2614 // from the command line for testing purposes. 2615 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2616 Opts.ObjCWeakRuntime = 1; 2617 else 2618 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2619 2620 // ObjCWeak determines whether __weak is actually enabled. 2621 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2622 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2623 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2624 assert(!Opts.ObjCWeak); 2625 } else if (Opts.getGC() != LangOptions::NonGC) { 2626 Diags.Report(diag::err_objc_weak_with_gc); 2627 } else if (!Opts.ObjCWeakRuntime) { 2628 Diags.Report(diag::err_objc_weak_unsupported); 2629 } else { 2630 Opts.ObjCWeak = 1; 2631 } 2632 } else if (Opts.ObjCAutoRefCount) { 2633 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2634 } 2635 2636 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2637 Opts.ObjCInferRelatedResultType = 0; 2638 2639 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2640 Opts.ObjCSubscriptingLegacyRuntime = 2641 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2642 } 2643 2644 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2645 // Check that the version has 1 to 3 components and the minor and patch 2646 // versions fit in two decimal digits. 2647 VersionTuple GNUCVer; 2648 bool Invalid = GNUCVer.tryParse(A->getValue()); 2649 unsigned Major = GNUCVer.getMajor(); 2650 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2651 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2652 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2653 Diags.Report(diag::err_drv_invalid_value) 2654 << A->getAsString(Args) << A->getValue(); 2655 } 2656 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2657 } 2658 2659 if (Args.hasArg(OPT_fgnu89_inline)) { 2660 if (Opts.CPlusPlus) 2661 Diags.Report(diag::err_drv_argument_not_allowed_with) 2662 << "-fgnu89-inline" << GetInputKindName(IK); 2663 else 2664 Opts.GNUInline = 1; 2665 } 2666 2667 if (Args.hasArg(OPT_fapple_kext)) { 2668 if (!Opts.CPlusPlus) 2669 Diags.Report(diag::warn_c_kext); 2670 else 2671 Opts.AppleKext = 1; 2672 } 2673 2674 if (Args.hasArg(OPT_print_ivar_layout)) 2675 Opts.ObjCGCBitmapPrint = 1; 2676 2677 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2678 Opts.NoConstantCFStrings = 1; 2679 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2680 Opts.CFRuntime = 2681 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2682 .Cases("unspecified", "standalone", "objc", 2683 LangOptions::CoreFoundationABI::ObjectiveC) 2684 .Cases("swift", "swift-5.0", 2685 LangOptions::CoreFoundationABI::Swift5_0) 2686 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2687 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2688 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2689 2690 if (Args.hasArg(OPT_fzvector)) 2691 Opts.ZVector = 1; 2692 2693 if (Args.hasArg(OPT_pthread)) 2694 Opts.POSIXThreads = 1; 2695 2696 // The value-visibility mode defaults to "default". 2697 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2698 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2699 } else { 2700 Opts.setValueVisibilityMode(DefaultVisibility); 2701 } 2702 2703 // The type-visibility mode defaults to the value-visibility mode. 2704 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2705 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2706 } else { 2707 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2708 } 2709 2710 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2711 Opts.InlineVisibilityHidden = 1; 2712 2713 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2714 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2715 2716 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2717 Opts.SetVisibilityForExternDecls = 1; 2718 2719 if (Args.hasArg(OPT_ftrapv)) { 2720 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2721 // Set the handler, if one is specified. 2722 Opts.OverflowHandler = 2723 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2724 } 2725 else if (Args.hasArg(OPT_fwrapv)) 2726 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2727 2728 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2729 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2730 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2731 Opts.MSCompatibilityVersion = 0; 2732 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2733 VersionTuple VT; 2734 if (VT.tryParse(A->getValue())) 2735 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2736 << A->getValue(); 2737 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2738 VT.getMinor().getValueOr(0) * 100000 + 2739 VT.getSubminor().getValueOr(0); 2740 } 2741 2742 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2743 // is specified, or -std is set to a conforming mode. 2744 // Trigraphs are disabled by default in c++1z onwards. 2745 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2746 Opts.Trigraphs = 2747 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2748 2749 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2750 OPT_fno_dollars_in_identifiers, 2751 Opts.DollarIdents); 2752 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2753 Opts.setVtorDispMode( 2754 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2755 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2756 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2757 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2758 Opts.ConstStrings); 2759 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2760 using LaxKind = LangOptions::LaxVectorConversionKind; 2761 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2762 .Case("none", LaxKind::None) 2763 .Case("integer", LaxKind::Integer) 2764 .Case("all", LaxKind::All) 2765 .Default(llvm::None)) 2766 Opts.setLaxVectorConversions(*Kind); 2767 else 2768 Diags.Report(diag::err_drv_invalid_value) 2769 << A->getAsString(Args) << A->getValue(); 2770 } 2771 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2772 Opts.ThreadsafeStatics = 0; 2773 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2774 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2775 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2776 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2777 2778 // -ffixed-point 2779 Opts.FixedPoint = 2780 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2781 !Opts.CPlusPlus; 2782 Opts.PaddingOnUnsignedFixedPoint = 2783 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2784 OPT_fno_padding_on_unsigned_fixed_point, 2785 /*Default=*/false) && 2786 Opts.FixedPoint; 2787 2788 // Handle exception personalities 2789 Arg *A = Args.getLastArg( 2790 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2791 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2792 if (A) { 2793 const Option &Opt = A->getOption(); 2794 llvm::Triple T(TargetOpts.Triple); 2795 if (T.isWindowsMSVCEnvironment()) 2796 Diags.Report(diag::err_fe_invalid_exception_model) 2797 << Opt.getName() << T.str(); 2798 2799 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2800 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2801 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2802 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2803 } 2804 2805 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2806 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2807 2808 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2809 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2810 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2811 && Opts.OpenCLVersion == 200); 2812 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2813 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2814 2815 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2816 Args.hasArg(OPT_fconvergent_functions); 2817 2818 Opts.DoubleSquareBracketAttributes = 2819 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2820 OPT_fno_double_square_bracket_attributes, 2821 Opts.DoubleSquareBracketAttributes); 2822 2823 Opts.CPlusPlusModules = Opts.CPlusPlus2a; 2824 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2825 Opts.Modules = 2826 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2827 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2828 Opts.ModulesDeclUse = 2829 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2830 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2831 // enter a different module (eg, when building a header unit). 2832 Opts.ModulesLocalVisibility = 2833 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2834 Opts.CPlusPlusModules; 2835 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2836 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2837 Opts.ModulesSearchAll = Opts.Modules && 2838 !Args.hasArg(OPT_fno_modules_search_all) && 2839 Args.hasArg(OPT_fmodules_search_all); 2840 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2841 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2842 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2843 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2844 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2845 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2846 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2847 .Case("char", 1) 2848 .Case("short", 2) 2849 .Case("int", 4) 2850 .Default(0); 2851 if (Opts.WCharSize == 0) 2852 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2853 } 2854 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2855 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2856 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2857 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2858 if (!Opts.NoBuiltin) 2859 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2860 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2861 Opts.RelaxedTemplateTemplateArgs = 2862 Args.hasArg(OPT_frelaxed_template_template_args); 2863 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2864 Opts.AlignedAllocation = 2865 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2866 Opts.AlignedAllocation); 2867 Opts.AlignedAllocationUnavailable = 2868 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2869 Opts.NewAlignOverride = 2870 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2871 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2872 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2873 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2874 << A->getValue(); 2875 Opts.NewAlignOverride = 0; 2876 } 2877 Opts.ConceptSatisfactionCaching = 2878 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2879 if (Args.hasArg(OPT_fconcepts_ts)) 2880 Diags.Report(diag::warn_fe_concepts_ts_flag); 2881 Opts.RecoveryAST = 2882 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, false); 2883 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2884 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2885 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2886 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2887 Opts.InstantiationDepth = 2888 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2889 Opts.ArrowDepth = 2890 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2891 Opts.ConstexprCallDepth = 2892 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2893 Opts.ConstexprStepLimit = 2894 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2895 Opts.EnableNewConstInterp = 2896 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2897 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2898 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2899 Opts.NumLargeByValueCopy = 2900 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2901 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2902 Opts.ObjCConstantStringClass = 2903 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2904 Opts.ObjCDefaultSynthProperties = 2905 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2906 Opts.EncodeExtendedBlockSig = 2907 Args.hasArg(OPT_fencode_extended_block_signature); 2908 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2909 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2910 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2911 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2912 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 2913 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2914 ? 128 2915 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2916 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2917 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2918 Opts.ROPI = Args.hasArg(OPT_fropi); 2919 Opts.RWPI = Args.hasArg(OPT_frwpi); 2920 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2921 Opts.Static = Args.hasArg(OPT_static_define); 2922 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2923 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2924 || Args.hasArg(OPT_fdump_record_layouts); 2925 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2926 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2927 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2928 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2929 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2930 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2931 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2932 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2933 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2934 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2935 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2936 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2937 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 2938 Opts.CurrentModule = Opts.ModuleName; 2939 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2940 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2941 llvm::sort(Opts.ModuleFeatures); 2942 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2943 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2944 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2945 // is enabled. 2946 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2947 | Opts.NativeHalfArgsAndReturns; 2948 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2949 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2950 2951 // __declspec is enabled by default for the PS4 by the driver, and also 2952 // enabled for Microsoft Extensions or Borland Extensions, here. 2953 // 2954 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2955 // CUDA extension. However, it is required for supporting 2956 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2957 // been rewritten in terms of something more generic, remove the Opts.CUDA 2958 // term here. 2959 Opts.DeclSpecKeyword = 2960 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2961 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2962 2963 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2964 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2965 .Case("target", LangOptions::ASMM_Target) 2966 .Case("no", LangOptions::ASMM_Off) 2967 .Case("yes", LangOptions::ASMM_On) 2968 .Default(255)) { 2969 default: 2970 Diags.Report(diag::err_drv_invalid_value) 2971 << "-faddress-space-map-mangling=" << A->getValue(); 2972 break; 2973 case LangOptions::ASMM_Target: 2974 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2975 break; 2976 case LangOptions::ASMM_On: 2977 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2978 break; 2979 case LangOptions::ASMM_Off: 2980 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2981 break; 2982 } 2983 } 2984 2985 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2986 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2987 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2988 A->getValue()) 2989 .Case("single", 2990 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2991 .Case("multiple", 2992 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2993 .Case("virtual", 2994 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2995 .Default(LangOptions::PPTMK_BestCase); 2996 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2997 Diags.Report(diag::err_drv_invalid_value) 2998 << "-fms-memptr-rep=" << A->getValue(); 2999 3000 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3001 } 3002 3003 // Check for MS default calling conventions being specified. 3004 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3005 LangOptions::DefaultCallingConvention DefaultCC = 3006 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3007 .Case("cdecl", LangOptions::DCC_CDecl) 3008 .Case("fastcall", LangOptions::DCC_FastCall) 3009 .Case("stdcall", LangOptions::DCC_StdCall) 3010 .Case("vectorcall", LangOptions::DCC_VectorCall) 3011 .Case("regcall", LangOptions::DCC_RegCall) 3012 .Default(LangOptions::DCC_None); 3013 if (DefaultCC == LangOptions::DCC_None) 3014 Diags.Report(diag::err_drv_invalid_value) 3015 << "-fdefault-calling-conv=" << A->getValue(); 3016 3017 llvm::Triple T(TargetOpts.Triple); 3018 llvm::Triple::ArchType Arch = T.getArch(); 3019 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3020 DefaultCC == LangOptions::DCC_StdCall) && 3021 Arch != llvm::Triple::x86; 3022 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3023 DefaultCC == LangOptions::DCC_RegCall) && 3024 !T.isX86(); 3025 if (emitError) 3026 Diags.Report(diag::err_drv_argument_not_allowed_with) 3027 << A->getSpelling() << T.getTriple(); 3028 else 3029 Opts.setDefaultCallingConv(DefaultCC); 3030 } 3031 3032 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3033 3034 // -mrtd option 3035 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3036 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3037 Diags.Report(diag::err_drv_argument_not_allowed_with) 3038 << A->getSpelling() << "-fdefault-calling-conv"; 3039 else { 3040 llvm::Triple T(TargetOpts.Triple); 3041 if (T.getArch() != llvm::Triple::x86) 3042 Diags.Report(diag::err_drv_argument_not_allowed_with) 3043 << A->getSpelling() << T.getTriple(); 3044 else 3045 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3046 } 3047 } 3048 3049 // Check if -fopenmp is specified and set default version to 4.5. 3050 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 45 : 0; 3051 // Check if -fopenmp-simd is specified. 3052 bool IsSimdSpecified = 3053 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3054 /*Default=*/false); 3055 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3056 Opts.OpenMPUseTLS = 3057 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3058 Opts.OpenMPIsDevice = 3059 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3060 Opts.OpenMPIRBuilder = 3061 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3062 bool IsTargetSpecified = 3063 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3064 3065 if (Opts.OpenMP || Opts.OpenMPSimd) { 3066 if (int Version = getLastArgIntValue( 3067 Args, OPT_fopenmp_version_EQ, 3068 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 3069 Opts.OpenMP = Version; 3070 else if (IsSimdSpecified || IsTargetSpecified) 3071 Opts.OpenMP = 45; 3072 // Provide diagnostic when a given target is not expected to be an OpenMP 3073 // device or host. 3074 if (!Opts.OpenMPIsDevice) { 3075 switch (T.getArch()) { 3076 default: 3077 break; 3078 // Add unsupported host targets here: 3079 case llvm::Triple::nvptx: 3080 case llvm::Triple::nvptx64: 3081 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3082 << TargetOpts.Triple; 3083 break; 3084 } 3085 } 3086 } 3087 3088 // Set the flag to prevent the implementation from emitting device exception 3089 // handling code for those requiring so. 3090 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 3091 Opts.Exceptions = 0; 3092 Opts.CXXExceptions = 0; 3093 } 3094 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3095 Opts.OpenMPCUDANumSMs = 3096 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3097 Opts.OpenMPCUDANumSMs, Diags); 3098 Opts.OpenMPCUDABlocksPerSM = 3099 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3100 Opts.OpenMPCUDABlocksPerSM, Diags); 3101 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3102 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3103 Opts.OpenMPCUDAReductionBufNum, Diags); 3104 } 3105 3106 // Prevent auto-widening the representation of loop counters during an 3107 // OpenMP collapse clause. 3108 Opts.OpenMPOptimisticCollapse = 3109 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3110 3111 // Get the OpenMP target triples if any. 3112 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3113 3114 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3115 llvm::Triple TT(A->getValue(i)); 3116 3117 if (TT.getArch() == llvm::Triple::UnknownArch || 3118 !(TT.getArch() == llvm::Triple::aarch64 || 3119 TT.getArch() == llvm::Triple::ppc || 3120 TT.getArch() == llvm::Triple::ppc64 || 3121 TT.getArch() == llvm::Triple::ppc64le || 3122 TT.getArch() == llvm::Triple::nvptx || 3123 TT.getArch() == llvm::Triple::nvptx64 || 3124 TT.getArch() == llvm::Triple::x86 || 3125 TT.getArch() == llvm::Triple::x86_64)) 3126 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3127 else 3128 Opts.OMPTargetTriples.push_back(TT); 3129 } 3130 } 3131 3132 // Get OpenMP host file path if any and report if a non existent file is 3133 // found 3134 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3135 Opts.OMPHostIRFile = A->getValue(); 3136 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3137 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3138 << Opts.OMPHostIRFile; 3139 } 3140 3141 // Set CUDA mode for OpenMP target NVPTX if specified in options 3142 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 3143 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3144 3145 // Set CUDA mode for OpenMP target NVPTX if specified in options 3146 Opts.OpenMPCUDAForceFullRuntime = 3147 Opts.OpenMPIsDevice && T.isNVPTX() && 3148 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3149 3150 // Record whether the __DEPRECATED define was requested. 3151 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3152 OPT_fno_deprecated_macro, 3153 Opts.Deprecated); 3154 3155 // FIXME: Eliminate this dependency. 3156 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3157 OptSize = getOptimizationLevelSize(Args); 3158 Opts.Optimize = Opt != 0; 3159 Opts.OptimizeSize = OptSize != 0; 3160 3161 // This is the __NO_INLINE__ define, which just depends on things like the 3162 // optimization level and -fno-inline, not actually whether the backend has 3163 // inlining enabled. 3164 Opts.NoInlineDefine = !Opts.Optimize; 3165 if (Arg *InlineArg = Args.getLastArg( 3166 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3167 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3168 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3169 Opts.NoInlineDefine = true; 3170 3171 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 3172 Args.hasArg(OPT_cl_fast_relaxed_math); 3173 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3174 Args.hasArg(OPT_cl_finite_math_only) || 3175 Args.hasArg(OPT_cl_fast_relaxed_math); 3176 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3177 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3178 Args.hasArg(OPT_cl_fast_relaxed_math); 3179 3180 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3181 StringRef Val = A->getValue(); 3182 if (Val == "fast") 3183 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 3184 else if (Val == "on") 3185 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 3186 else if (Val == "off") 3187 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 3188 else 3189 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3190 } 3191 3192 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3193 if (Args.hasArg(OPT_frounding_math)) { 3194 FPRM = llvm::RoundingMode::Dynamic; 3195 } 3196 Opts.setFPRoundingMode(FPRM); 3197 3198 if (Args.hasArg(OPT_ftrapping_math)) { 3199 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3200 } 3201 3202 if (Args.hasArg(OPT_fno_trapping_math)) { 3203 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3204 } 3205 3206 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3207 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3208 StringRef Val = A->getValue(); 3209 if (Val.equals("ignore")) 3210 FPEB = LangOptions::FPE_Ignore; 3211 else if (Val.equals("maytrap")) 3212 FPEB = LangOptions::FPE_MayTrap; 3213 else if (Val.equals("strict")) 3214 FPEB = LangOptions::FPE_Strict; 3215 else 3216 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3217 } 3218 Opts.setFPExceptionMode(FPEB); 3219 3220 Opts.RetainCommentsFromSystemHeaders = 3221 Args.hasArg(OPT_fretain_comments_from_system_headers); 3222 3223 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3224 switch (SSP) { 3225 default: 3226 Diags.Report(diag::err_drv_invalid_value) 3227 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3228 break; 3229 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3230 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3231 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3232 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3233 } 3234 3235 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3236 StringRef Val = A->getValue(); 3237 if (Val == "uninitialized") 3238 Opts.setTrivialAutoVarInit( 3239 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3240 else if (Val == "zero") 3241 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3242 else if (Val == "pattern") 3243 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3244 else 3245 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3246 } 3247 3248 // Parse -fsanitize= arguments. 3249 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3250 Diags, Opts.Sanitize); 3251 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3252 Opts.SanitizeAddressFieldPadding = 3253 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3254 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3255 std::vector<std::string> systemBlacklists = 3256 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3257 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3258 systemBlacklists.begin(), 3259 systemBlacklists.end()); 3260 3261 // -fxray-instrument 3262 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3263 Opts.XRayAlwaysEmitCustomEvents = 3264 Args.hasArg(OPT_fxray_always_emit_customevents); 3265 Opts.XRayAlwaysEmitTypedEvents = 3266 Args.hasArg(OPT_fxray_always_emit_typedevents); 3267 3268 // -fxray-{always,never}-instrument= filenames. 3269 Opts.XRayAlwaysInstrumentFiles = 3270 Args.getAllArgValues(OPT_fxray_always_instrument); 3271 Opts.XRayNeverInstrumentFiles = 3272 Args.getAllArgValues(OPT_fxray_never_instrument); 3273 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3274 3275 // -fforce-emit-vtables 3276 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3277 3278 // -fallow-editor-placeholders 3279 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3280 3281 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3282 3283 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3284 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3285 3286 StringRef Ver = A->getValue(); 3287 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3288 unsigned Major, Minor = 0; 3289 3290 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3291 // y or y.0 (4 <= y <= current version). 3292 if (!VerParts.first.startswith("0") && 3293 !VerParts.first.getAsInteger(10, Major) && 3294 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3295 (Major == 3 ? VerParts.second.size() == 1 && 3296 !VerParts.second.getAsInteger(10, Minor) 3297 : VerParts.first.size() == Ver.size() || 3298 VerParts.second == "0")) { 3299 // Got a valid version number. 3300 if (Major == 3 && Minor <= 8) 3301 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3302 else if (Major <= 4) 3303 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3304 else if (Major <= 6) 3305 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3306 else if (Major <= 7) 3307 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3308 else if (Major <= 9) 3309 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3310 } else if (Ver != "latest") { 3311 Diags.Report(diag::err_drv_invalid_value) 3312 << A->getAsString(Args) << A->getValue(); 3313 } 3314 } 3315 3316 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3317 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3318 3319 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3320 3321 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3322 StringRef SignScope = A->getValue(); 3323 3324 if (SignScope.equals_lower("none")) 3325 Opts.setSignReturnAddressScope( 3326 LangOptions::SignReturnAddressScopeKind::None); 3327 else if (SignScope.equals_lower("all")) 3328 Opts.setSignReturnAddressScope( 3329 LangOptions::SignReturnAddressScopeKind::All); 3330 else if (SignScope.equals_lower("non-leaf")) 3331 Opts.setSignReturnAddressScope( 3332 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3333 else 3334 Diags.Report(diag::err_drv_invalid_value) 3335 << A->getAsString(Args) << SignScope; 3336 3337 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3338 StringRef SignKey = A->getValue(); 3339 if (!SignScope.empty() && !SignKey.empty()) { 3340 if (SignKey.equals_lower("a_key")) 3341 Opts.setSignReturnAddressKey( 3342 LangOptions::SignReturnAddressKeyKind::AKey); 3343 else if (SignKey.equals_lower("b_key")) 3344 Opts.setSignReturnAddressKey( 3345 LangOptions::SignReturnAddressKeyKind::BKey); 3346 else 3347 Diags.Report(diag::err_drv_invalid_value) 3348 << A->getAsString(Args) << SignKey; 3349 } 3350 } 3351 } 3352 3353 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3354 } 3355 3356 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3357 switch (Action) { 3358 case frontend::ASTDeclList: 3359 case frontend::ASTDump: 3360 case frontend::ASTPrint: 3361 case frontend::ASTView: 3362 case frontend::EmitAssembly: 3363 case frontend::EmitBC: 3364 case frontend::EmitHTML: 3365 case frontend::EmitLLVM: 3366 case frontend::EmitLLVMOnly: 3367 case frontend::EmitCodeGenOnly: 3368 case frontend::EmitObj: 3369 case frontend::FixIt: 3370 case frontend::GenerateModule: 3371 case frontend::GenerateModuleInterface: 3372 case frontend::GenerateHeaderModule: 3373 case frontend::GeneratePCH: 3374 case frontend::GenerateInterfaceStubs: 3375 case frontend::ParseSyntaxOnly: 3376 case frontend::ModuleFileInfo: 3377 case frontend::VerifyPCH: 3378 case frontend::PluginAction: 3379 case frontend::RewriteObjC: 3380 case frontend::RewriteTest: 3381 case frontend::RunAnalysis: 3382 case frontend::TemplightDump: 3383 case frontend::MigrateSource: 3384 return false; 3385 3386 case frontend::DumpCompilerOptions: 3387 case frontend::DumpRawTokens: 3388 case frontend::DumpTokens: 3389 case frontend::InitOnly: 3390 case frontend::PrintPreamble: 3391 case frontend::PrintPreprocessedInput: 3392 case frontend::RewriteMacros: 3393 case frontend::RunPreprocessorOnly: 3394 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3395 return true; 3396 } 3397 llvm_unreachable("invalid frontend action"); 3398 } 3399 3400 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3401 DiagnosticsEngine &Diags, 3402 frontend::ActionKind Action) { 3403 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3404 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3405 Args.hasArg(OPT_pch_through_hdrstop_use); 3406 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3407 Opts.PCHThroughHeader = 3408 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3409 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3410 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3411 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3412 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3413 3414 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3415 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3416 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3417 3418 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3419 auto Split = StringRef(A).split('='); 3420 Opts.MacroPrefixMap.insert( 3421 {std::string(Split.first), std::string(Split.second)}); 3422 } 3423 3424 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3425 StringRef Value(A->getValue()); 3426 size_t Comma = Value.find(','); 3427 unsigned Bytes = 0; 3428 unsigned EndOfLine = 0; 3429 3430 if (Comma == StringRef::npos || 3431 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3432 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3433 Diags.Report(diag::err_drv_preamble_format); 3434 else { 3435 Opts.PrecompiledPreambleBytes.first = Bytes; 3436 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3437 } 3438 } 3439 3440 // Add the __CET__ macro if a CFProtection option is set. 3441 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3442 StringRef Name = A->getValue(); 3443 if (Name == "branch") 3444 Opts.addMacroDef("__CET__=1"); 3445 else if (Name == "return") 3446 Opts.addMacroDef("__CET__=2"); 3447 else if (Name == "full") 3448 Opts.addMacroDef("__CET__=3"); 3449 } 3450 3451 // Add macros from the command line. 3452 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3453 if (A->getOption().matches(OPT_D)) 3454 Opts.addMacroDef(A->getValue()); 3455 else 3456 Opts.addMacroUndef(A->getValue()); 3457 } 3458 3459 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3460 3461 // Add the ordered list of -includes. 3462 for (const auto *A : Args.filtered(OPT_include)) 3463 Opts.Includes.emplace_back(A->getValue()); 3464 3465 for (const auto *A : Args.filtered(OPT_chain_include)) 3466 Opts.ChainedIncludes.emplace_back(A->getValue()); 3467 3468 for (const auto *A : Args.filtered(OPT_remap_file)) { 3469 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3470 3471 if (Split.second.empty()) { 3472 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3473 continue; 3474 } 3475 3476 Opts.addRemappedFile(Split.first, Split.second); 3477 } 3478 3479 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3480 StringRef Name = A->getValue(); 3481 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3482 .Case("libc++", ARCXX_libcxx) 3483 .Case("libstdc++", ARCXX_libstdcxx) 3484 .Case("none", ARCXX_nolib) 3485 .Default(~0U); 3486 if (Library == ~0U) 3487 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3488 else 3489 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3490 } 3491 3492 // Always avoid lexing editor placeholders when we're just running the 3493 // preprocessor as we never want to emit the 3494 // "editor placeholder in source file" error in PP only mode. 3495 if (isStrictlyPreprocessorAction(Action)) 3496 Opts.LexEditorPlaceholders = false; 3497 3498 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3499 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3500 } 3501 3502 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3503 ArgList &Args, 3504 frontend::ActionKind Action) { 3505 if (isStrictlyPreprocessorAction(Action)) 3506 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3507 else 3508 Opts.ShowCPP = 0; 3509 3510 Opts.ShowComments = Args.hasArg(OPT_C); 3511 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3512 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3513 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3514 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3515 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3516 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3517 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3518 } 3519 3520 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3521 DiagnosticsEngine &Diags) { 3522 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3523 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3524 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3525 StringRef Value = A->getValue(); 3526 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3527 .Case("default", llvm::EABI::Default) 3528 .Case("4", llvm::EABI::EABI4) 3529 .Case("5", llvm::EABI::EABI5) 3530 .Case("gnu", llvm::EABI::GNU) 3531 .Default(llvm::EABI::Unknown); 3532 if (EABIVersion == llvm::EABI::Unknown) 3533 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3534 << Value; 3535 else 3536 Opts.EABIVersion = EABIVersion; 3537 } 3538 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3539 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3540 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3541 Opts.LinkerVersion = 3542 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3543 Opts.Triple = std::string(Args.getLastArgValue(OPT_triple)); 3544 // Use the default target triple if unspecified. 3545 if (Opts.Triple.empty()) 3546 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3547 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3548 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3549 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3550 Opts.NVPTXUseShortPointers = Args.hasFlag( 3551 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3552 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3553 llvm::VersionTuple Version; 3554 if (Version.tryParse(A->getValue())) 3555 Diags.Report(diag::err_drv_invalid_value) 3556 << A->getAsString(Args) << A->getValue(); 3557 else 3558 Opts.SDKVersion = Version; 3559 } 3560 } 3561 3562 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3563 ArrayRef<const char *> CommandLineArgs, 3564 DiagnosticsEngine &Diags) { 3565 bool Success = true; 3566 3567 // Parse the arguments. 3568 const OptTable &Opts = getDriverOptTable(); 3569 const unsigned IncludedFlagsBitmask = options::CC1Option; 3570 unsigned MissingArgIndex, MissingArgCount; 3571 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3572 MissingArgCount, IncludedFlagsBitmask); 3573 LangOptions &LangOpts = *Res.getLangOpts(); 3574 3575 // Check for missing argument error. 3576 if (MissingArgCount) { 3577 Diags.Report(diag::err_drv_missing_argument) 3578 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3579 Success = false; 3580 } 3581 3582 // Issue errors on unknown arguments. 3583 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3584 auto ArgString = A->getAsString(Args); 3585 std::string Nearest; 3586 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3587 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3588 else 3589 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3590 << ArgString << Nearest; 3591 Success = false; 3592 } 3593 3594 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3595 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3596 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3597 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3598 Res.getDependencyOutputOpts().Targets.empty()) { 3599 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3600 Success = false; 3601 } 3602 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3603 /*DefaultDiagColor=*/false); 3604 ParseCommentArgs(LangOpts.CommentOpts, Args); 3605 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3606 // FIXME: We shouldn't have to pass the DashX option around here 3607 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3608 LangOpts.IsHeaderFile); 3609 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3610 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3611 Res.getTargetOpts(), Res.getFrontendOpts()); 3612 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3613 Res.getFileSystemOpts().WorkingDir); 3614 llvm::Triple T(Res.getTargetOpts().Triple); 3615 if (DashX.getFormat() == InputKind::Precompiled || 3616 DashX.getLanguage() == Language::LLVM_IR) { 3617 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3618 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3619 // what the input type is. 3620 if (Args.hasArg(OPT_fobjc_arc)) 3621 LangOpts.ObjCAutoRefCount = 1; 3622 // PIClevel and PIELevel are needed during code generation and this should be 3623 // set regardless of the input type. 3624 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3625 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3626 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3627 Diags, LangOpts.Sanitize); 3628 } else { 3629 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3630 // FIXME: Should we really be calling this for an Language::Asm input? 3631 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3632 Res.getPreprocessorOpts(), Diags); 3633 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3634 LangOpts.ObjCExceptions = 1; 3635 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3636 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3637 // preprocessed input as we don't expect it to be used with -std=libc++ 3638 // anyway. 3639 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3640 } 3641 } 3642 3643 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3644 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3645 3646 LangOpts.FunctionAlignment = 3647 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3648 3649 if (LangOpts.CUDA) { 3650 // During CUDA device-side compilation, the aux triple is the 3651 // triple used for host compilation. 3652 if (LangOpts.CUDAIsDevice) 3653 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3654 } 3655 3656 // Set the triple of the host for OpenMP device compile. 3657 if (LangOpts.OpenMPIsDevice) 3658 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3659 3660 // FIXME: Override value name discarding when asan or msan is used because the 3661 // backend passes depend on the name of the alloca in order to print out 3662 // names. 3663 Res.getCodeGenOpts().DiscardValueNames &= 3664 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3665 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3666 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3667 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3668 3669 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3670 Res.getFrontendOpts().ProgramAction); 3671 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3672 Res.getFrontendOpts().ProgramAction); 3673 3674 // Turn on -Wspir-compat for SPIR target. 3675 if (T.isSPIR()) 3676 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3677 3678 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3679 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3680 !Res.getLangOpts()->Sanitize.empty()) { 3681 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3682 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3683 } 3684 return Success; 3685 } 3686 3687 std::string CompilerInvocation::getModuleHash() const { 3688 // Note: For QoI reasons, the things we use as a hash here should all be 3689 // dumped via the -module-info flag. 3690 using llvm::hash_code; 3691 using llvm::hash_value; 3692 using llvm::hash_combine; 3693 using llvm::hash_combine_range; 3694 3695 // Start the signature with the compiler version. 3696 // FIXME: We'd rather use something more cryptographically sound than 3697 // CityHash, but this will do for now. 3698 hash_code code = hash_value(getClangFullRepositoryVersion()); 3699 3700 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3701 // and getClangFullRepositoryVersion() doesn't include git revision. 3702 code = hash_combine(code, serialization::VERSION_MAJOR, 3703 serialization::VERSION_MINOR); 3704 3705 // Extend the signature with the language options 3706 #define LANGOPT(Name, Bits, Default, Description) \ 3707 code = hash_combine(code, LangOpts->Name); 3708 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3709 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3710 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3711 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3712 #include "clang/Basic/LangOptions.def" 3713 3714 for (StringRef Feature : LangOpts->ModuleFeatures) 3715 code = hash_combine(code, Feature); 3716 3717 // Extend the signature with the target options. 3718 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3719 TargetOpts->ABI); 3720 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3721 code = hash_combine(code, FeatureAsWritten); 3722 3723 // Extend the signature with preprocessor options. 3724 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3725 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3726 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3727 3728 for (const auto &I : getPreprocessorOpts().Macros) { 3729 // If we're supposed to ignore this macro for the purposes of modules, 3730 // don't put it into the hash. 3731 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3732 // Check whether we're ignoring this macro. 3733 StringRef MacroDef = I.first; 3734 if (hsOpts.ModulesIgnoreMacros.count( 3735 llvm::CachedHashString(MacroDef.split('=').first))) 3736 continue; 3737 } 3738 3739 code = hash_combine(code, I.first, I.second); 3740 } 3741 3742 // Extend the signature with the sysroot and other header search options. 3743 code = hash_combine(code, hsOpts.Sysroot, 3744 hsOpts.ModuleFormat, 3745 hsOpts.UseDebugInfo, 3746 hsOpts.UseBuiltinIncludes, 3747 hsOpts.UseStandardSystemIncludes, 3748 hsOpts.UseStandardCXXIncludes, 3749 hsOpts.UseLibcxx, 3750 hsOpts.ModulesValidateDiagnosticOptions); 3751 code = hash_combine(code, hsOpts.ResourceDir); 3752 3753 if (hsOpts.ModulesStrictContextHash) { 3754 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3755 hsOpts.SystemHeaderPrefixes.end()); 3756 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3757 hsOpts.UserEntries.end()); 3758 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3759 hsOpts.UserEntries.size(), UEC); 3760 3761 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3762 #define DIAGOPT(Name, Bits, Default) \ 3763 code = hash_combine(code, diagOpts.Name); 3764 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3765 code = hash_combine(code, diagOpts.get##Name()); 3766 #include "clang/Basic/DiagnosticOptions.def" 3767 #undef DIAGOPT 3768 #undef ENUM_DIAGOPT 3769 } 3770 3771 // Extend the signature with the user build path. 3772 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3773 3774 // Extend the signature with the module file extensions. 3775 const FrontendOptions &frontendOpts = getFrontendOpts(); 3776 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3777 code = ext->hashExtension(code); 3778 } 3779 3780 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3781 // affects the debug info in the PCM. 3782 if (getCodeGenOpts().DebugTypeExtRefs) 3783 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3784 code = hash_combine(code, KeyValue.first, KeyValue.second); 3785 3786 // Extend the signature with the enabled sanitizers, if at least one is 3787 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3788 SanitizerSet SanHash = LangOpts->Sanitize; 3789 SanHash.clear(getPPTransparentSanitizers()); 3790 if (!SanHash.empty()) 3791 code = hash_combine(code, SanHash.Mask); 3792 3793 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3794 } 3795 3796 namespace clang { 3797 3798 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3799 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3800 DiagnosticsEngine &Diags) { 3801 return createVFSFromCompilerInvocation(CI, Diags, 3802 llvm::vfs::getRealFileSystem()); 3803 } 3804 3805 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3806 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3807 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3808 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3809 return BaseFS; 3810 3811 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3812 // earlier vfs files are on the bottom 3813 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3814 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3815 Result->getBufferForFile(File); 3816 if (!Buffer) { 3817 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3818 continue; 3819 } 3820 3821 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3822 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3823 /*DiagContext*/ nullptr, Result); 3824 if (!FS) { 3825 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3826 continue; 3827 } 3828 3829 Result = FS; 3830 } 3831 return Result; 3832 } 3833 3834 } // namespace clang 3835