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.SanitizeCoverageInlineBoolFlag = 1180 Args.hasArg(OPT_fsanitize_coverage_inline_bool_flag); 1181 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1182 Opts.SanitizeCoverageStackDepth = 1183 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1184 Opts.SanitizeMemoryTrackOrigins = 1185 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1186 Opts.SanitizeMemoryUseAfterDtor = 1187 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1188 OPT_fno_sanitize_memory_use_after_dtor, 1189 false); 1190 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1191 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1192 Opts.SanitizeCfiICallGeneralizePointers = 1193 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1194 Opts.SanitizeCfiCanonicalJumpTables = 1195 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1196 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1197 if (Arg *A = Args.getLastArg( 1198 OPT_fsanitize_address_poison_custom_array_cookie, 1199 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1200 Opts.SanitizeAddressPoisonCustomArrayCookie = 1201 A->getOption().getID() == 1202 OPT_fsanitize_address_poison_custom_array_cookie; 1203 } 1204 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1205 OPT_fno_sanitize_address_use_after_scope)) { 1206 Opts.SanitizeAddressUseAfterScope = 1207 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1208 } 1209 Opts.SanitizeAddressGlobalsDeadStripping = 1210 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1211 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1212 OPT_fno_sanitize_address_use_odr_indicator)) { 1213 Opts.SanitizeAddressUseOdrIndicator = 1214 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1215 } 1216 Opts.SSPBufferSize = 1217 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1218 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1219 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1220 StringRef Val = A->getValue(); 1221 unsigned StackAlignment = Opts.StackAlignment; 1222 Val.getAsInteger(10, StackAlignment); 1223 Opts.StackAlignment = StackAlignment; 1224 } 1225 1226 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1227 StringRef Val = A->getValue(); 1228 unsigned StackProbeSize = Opts.StackProbeSize; 1229 Val.getAsInteger(0, StackProbeSize); 1230 Opts.StackProbeSize = StackProbeSize; 1231 } 1232 1233 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1234 1235 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1236 1237 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1238 StringRef Name = A->getValue(); 1239 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1240 .Case("legacy", CodeGenOptions::Legacy) 1241 .Case("non-legacy", CodeGenOptions::NonLegacy) 1242 .Case("mixed", CodeGenOptions::Mixed) 1243 .Default(~0U); 1244 if (Method == ~0U) { 1245 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1246 Success = false; 1247 } else { 1248 Opts.setObjCDispatchMethod( 1249 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1250 } 1251 } 1252 1253 1254 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1255 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1256 1257 if (Args.getLastArg(OPT_femulated_tls) || 1258 Args.getLastArg(OPT_fno_emulated_tls)) { 1259 Opts.ExplicitEmulatedTLS = true; 1260 Opts.EmulatedTLS = 1261 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1262 } 1263 1264 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1265 StringRef Name = A->getValue(); 1266 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1267 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1268 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1269 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1270 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1271 .Default(~0U); 1272 if (Model == ~0U) { 1273 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1274 Success = false; 1275 } else { 1276 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1277 } 1278 } 1279 1280 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1281 1282 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1283 StringRef Val = A->getValue(); 1284 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1285 if (!Opts.FPDenormalMode.isValid()) 1286 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1287 } 1288 1289 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1290 StringRef Val = A->getValue(); 1291 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1292 if (!Opts.FP32DenormalMode.isValid()) 1293 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1294 } 1295 1296 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1297 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1298 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1299 } else { 1300 assert(A->getOption().matches(OPT_freg_struct_return)); 1301 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1302 } 1303 } 1304 1305 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1306 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1307 bool NeedLocTracking = false; 1308 1309 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1310 if (!Opts.OptRecordFile.empty()) 1311 NeedLocTracking = true; 1312 1313 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1314 Opts.OptRecordPasses = A->getValue(); 1315 NeedLocTracking = true; 1316 } 1317 1318 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1319 Opts.OptRecordFormat = A->getValue(); 1320 NeedLocTracking = true; 1321 } 1322 1323 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1324 Opts.OptimizationRemarkPattern = 1325 GenerateOptimizationRemarkRegex(Diags, Args, A); 1326 NeedLocTracking = true; 1327 } 1328 1329 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1330 Opts.OptimizationRemarkMissedPattern = 1331 GenerateOptimizationRemarkRegex(Diags, Args, A); 1332 NeedLocTracking = true; 1333 } 1334 1335 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1336 Opts.OptimizationRemarkAnalysisPattern = 1337 GenerateOptimizationRemarkRegex(Diags, Args, A); 1338 NeedLocTracking = true; 1339 } 1340 1341 Opts.DiagnosticsWithHotness = 1342 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1343 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1344 bool UsingProfile = UsingSampleProfile || 1345 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1346 1347 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1348 // An IR file will contain PGO as metadata 1349 IK.getLanguage() != Language::LLVM_IR) 1350 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1351 << "-fdiagnostics-show-hotness"; 1352 1353 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1354 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1355 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1356 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1357 << "-fdiagnostics-hotness-threshold="; 1358 1359 // If the user requested to use a sample profile for PGO, then the 1360 // backend will need to track source location information so the profile 1361 // can be incorporated into the IR. 1362 if (UsingSampleProfile) 1363 NeedLocTracking = true; 1364 1365 // If the user requested a flag that requires source locations available in 1366 // the backend, make sure that the backend tracks source location information. 1367 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1368 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1369 1370 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1371 1372 // Parse -fsanitize-recover= arguments. 1373 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1374 parseSanitizerKinds("-fsanitize-recover=", 1375 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1376 Opts.SanitizeRecover); 1377 parseSanitizerKinds("-fsanitize-trap=", 1378 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1379 Opts.SanitizeTrap); 1380 1381 Opts.CudaGpuBinaryFileName = 1382 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1383 1384 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1385 1386 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1387 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1388 1389 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1390 1391 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1392 1393 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1394 1395 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1396 1397 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1398 1399 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1400 1401 Opts.SymbolPartition = 1402 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1403 1404 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1405 return Success; 1406 } 1407 1408 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1409 ArgList &Args) { 1410 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1411 Opts.Targets = Args.getAllArgValues(OPT_MT); 1412 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1413 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1414 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1415 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1416 Opts.HeaderIncludeOutputFile = 1417 std::string(Args.getLastArgValue(OPT_header_include_file)); 1418 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1419 if (Args.hasArg(OPT_show_includes)) { 1420 // Writing both /showIncludes and preprocessor output to stdout 1421 // would produce interleaved output, so use stderr for /showIncludes. 1422 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1423 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1424 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1425 else 1426 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1427 } else { 1428 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1429 } 1430 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1431 Opts.ModuleDependencyOutputDir = 1432 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1433 if (Args.hasArg(OPT_MV)) 1434 Opts.OutputFormat = DependencyOutputFormat::NMake; 1435 // Add sanitizer blacklists as extra dependencies. 1436 // They won't be discovered by the regular preprocessor, so 1437 // we let make / ninja to know about this implicit dependency. 1438 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1439 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1440 StringRef Val = A->getValue(); 1441 if (Val.find('=') == StringRef::npos) 1442 Opts.ExtraDeps.push_back(std::string(Val)); 1443 } 1444 if (Opts.IncludeSystemHeaders) { 1445 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1446 StringRef Val = A->getValue(); 1447 if (Val.find('=') == StringRef::npos) 1448 Opts.ExtraDeps.push_back(std::string(Val)); 1449 } 1450 } 1451 } 1452 1453 // Propagate the extra dependencies. 1454 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1455 Opts.ExtraDeps.push_back(A->getValue()); 1456 } 1457 1458 // Only the -fmodule-file=<file> form. 1459 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1460 StringRef Val = A->getValue(); 1461 if (Val.find('=') == StringRef::npos) 1462 Opts.ExtraDeps.push_back(std::string(Val)); 1463 } 1464 } 1465 1466 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1467 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1468 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1469 // Support both clang's -f[no-]color-diagnostics and gcc's 1470 // -f[no-]diagnostics-colors[=never|always|auto]. 1471 enum { 1472 Colors_On, 1473 Colors_Off, 1474 Colors_Auto 1475 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1476 for (auto *A : Args) { 1477 const Option &O = A->getOption(); 1478 if (O.matches(options::OPT_fcolor_diagnostics) || 1479 O.matches(options::OPT_fdiagnostics_color)) { 1480 ShowColors = Colors_On; 1481 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1482 O.matches(options::OPT_fno_diagnostics_color)) { 1483 ShowColors = Colors_Off; 1484 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1485 StringRef Value(A->getValue()); 1486 if (Value == "always") 1487 ShowColors = Colors_On; 1488 else if (Value == "never") 1489 ShowColors = Colors_Off; 1490 else if (Value == "auto") 1491 ShowColors = Colors_Auto; 1492 } 1493 } 1494 return ShowColors == Colors_On || 1495 (ShowColors == Colors_Auto && 1496 llvm::sys::Process::StandardErrHasColors()); 1497 } 1498 1499 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1500 DiagnosticsEngine *Diags) { 1501 bool Success = true; 1502 for (const auto &Prefix : VerifyPrefixes) { 1503 // Every prefix must start with a letter and contain only alphanumeric 1504 // characters, hyphens, and underscores. 1505 auto BadChar = llvm::find_if(Prefix, [](char C) { 1506 return !isAlphanumeric(C) && C != '-' && C != '_'; 1507 }); 1508 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1509 Success = false; 1510 if (Diags) { 1511 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1512 Diags->Report(diag::note_drv_verify_prefix_spelling); 1513 } 1514 } 1515 } 1516 return Success; 1517 } 1518 1519 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1520 DiagnosticsEngine *Diags, 1521 bool DefaultDiagColor) { 1522 bool Success = true; 1523 1524 Opts.DiagnosticLogFile = 1525 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1526 if (Arg *A = 1527 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1528 Opts.DiagnosticSerializationFile = A->getValue(); 1529 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1530 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1531 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1532 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1533 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1534 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1535 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1536 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1537 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1538 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1539 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1540 1541 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1542 1543 // Default behavior is to not to show note include stacks. 1544 Opts.ShowNoteIncludeStack = false; 1545 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1546 OPT_fno_diagnostics_show_note_include_stack)) 1547 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1548 Opts.ShowNoteIncludeStack = true; 1549 1550 StringRef ShowOverloads = 1551 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1552 if (ShowOverloads == "best") 1553 Opts.setShowOverloads(Ovl_Best); 1554 else if (ShowOverloads == "all") 1555 Opts.setShowOverloads(Ovl_All); 1556 else { 1557 Success = false; 1558 if (Diags) 1559 Diags->Report(diag::err_drv_invalid_value) 1560 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1561 << ShowOverloads; 1562 } 1563 1564 StringRef ShowCategory = 1565 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1566 if (ShowCategory == "none") 1567 Opts.ShowCategories = 0; 1568 else if (ShowCategory == "id") 1569 Opts.ShowCategories = 1; 1570 else if (ShowCategory == "name") 1571 Opts.ShowCategories = 2; 1572 else { 1573 Success = false; 1574 if (Diags) 1575 Diags->Report(diag::err_drv_invalid_value) 1576 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1577 << ShowCategory; 1578 } 1579 1580 StringRef Format = 1581 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1582 if (Format == "clang") 1583 Opts.setFormat(DiagnosticOptions::Clang); 1584 else if (Format == "msvc") 1585 Opts.setFormat(DiagnosticOptions::MSVC); 1586 else if (Format == "msvc-fallback") { 1587 Opts.setFormat(DiagnosticOptions::MSVC); 1588 Opts.CLFallbackMode = true; 1589 } else if (Format == "vi") 1590 Opts.setFormat(DiagnosticOptions::Vi); 1591 else { 1592 Success = false; 1593 if (Diags) 1594 Diags->Report(diag::err_drv_invalid_value) 1595 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1596 << Format; 1597 } 1598 1599 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1600 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1601 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1602 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1603 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1604 if (Args.hasArg(OPT_verify)) 1605 Opts.VerifyPrefixes.push_back("expected"); 1606 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1607 // then sort it to prepare for fast lookup using std::binary_search. 1608 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1609 Opts.VerifyDiagnostics = false; 1610 Success = false; 1611 } 1612 else 1613 llvm::sort(Opts.VerifyPrefixes); 1614 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1615 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1616 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1617 Diags, DiagMask); 1618 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1619 DiagMask = DiagnosticLevelMask::All; 1620 Opts.setVerifyIgnoreUnexpected(DiagMask); 1621 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1622 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1623 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1624 Opts.MacroBacktraceLimit = 1625 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1626 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1627 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1628 Args, OPT_ftemplate_backtrace_limit, 1629 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1630 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1631 Args, OPT_fconstexpr_backtrace_limit, 1632 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1633 Opts.SpellCheckingLimit = getLastArgIntValue( 1634 Args, OPT_fspell_checking_limit, 1635 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1636 Opts.SnippetLineLimit = getLastArgIntValue( 1637 Args, OPT_fcaret_diagnostics_max_lines, 1638 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1639 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1640 DiagnosticOptions::DefaultTabStop, Diags); 1641 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1642 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1643 if (Diags) 1644 Diags->Report(diag::warn_ignoring_ftabstop_value) 1645 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1646 } 1647 Opts.MessageLength = 1648 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1649 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1650 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1651 1652 return Success; 1653 } 1654 1655 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1656 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1657 } 1658 1659 /// Parse the argument to the -ftest-module-file-extension 1660 /// command-line argument. 1661 /// 1662 /// \returns true on error, false on success. 1663 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1664 std::string &BlockName, 1665 unsigned &MajorVersion, 1666 unsigned &MinorVersion, 1667 bool &Hashed, 1668 std::string &UserInfo) { 1669 SmallVector<StringRef, 5> Args; 1670 Arg.split(Args, ':', 5); 1671 if (Args.size() < 5) 1672 return true; 1673 1674 BlockName = std::string(Args[0]); 1675 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1676 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1677 if (Args[3].getAsInteger(2, Hashed)) return true; 1678 if (Args.size() > 4) 1679 UserInfo = std::string(Args[4]); 1680 return false; 1681 } 1682 1683 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1684 DiagnosticsEngine &Diags, 1685 bool &IsHeaderFile) { 1686 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1687 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1688 switch (A->getOption().getID()) { 1689 default: 1690 llvm_unreachable("Invalid option in group!"); 1691 case OPT_ast_list: 1692 Opts.ProgramAction = frontend::ASTDeclList; break; 1693 case OPT_ast_dump_all_EQ: 1694 case OPT_ast_dump_EQ: { 1695 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1696 .CaseLower("default", ADOF_Default) 1697 .CaseLower("json", ADOF_JSON) 1698 .Default(std::numeric_limits<unsigned>::max()); 1699 1700 if (Val != std::numeric_limits<unsigned>::max()) 1701 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1702 else { 1703 Diags.Report(diag::err_drv_invalid_value) 1704 << A->getAsString(Args) << A->getValue(); 1705 Opts.ASTDumpFormat = ADOF_Default; 1706 } 1707 LLVM_FALLTHROUGH; 1708 } 1709 case OPT_ast_dump: 1710 case OPT_ast_dump_all: 1711 case OPT_ast_dump_lookups: 1712 Opts.ProgramAction = frontend::ASTDump; break; 1713 case OPT_ast_print: 1714 Opts.ProgramAction = frontend::ASTPrint; break; 1715 case OPT_ast_view: 1716 Opts.ProgramAction = frontend::ASTView; break; 1717 case OPT_compiler_options_dump: 1718 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1719 case OPT_dump_raw_tokens: 1720 Opts.ProgramAction = frontend::DumpRawTokens; break; 1721 case OPT_dump_tokens: 1722 Opts.ProgramAction = frontend::DumpTokens; break; 1723 case OPT_S: 1724 Opts.ProgramAction = frontend::EmitAssembly; break; 1725 case OPT_emit_llvm_bc: 1726 Opts.ProgramAction = frontend::EmitBC; break; 1727 case OPT_emit_html: 1728 Opts.ProgramAction = frontend::EmitHTML; break; 1729 case OPT_emit_llvm: 1730 Opts.ProgramAction = frontend::EmitLLVM; break; 1731 case OPT_emit_llvm_only: 1732 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1733 case OPT_emit_codegen_only: 1734 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1735 case OPT_emit_obj: 1736 Opts.ProgramAction = frontend::EmitObj; break; 1737 case OPT_fixit_EQ: 1738 Opts.FixItSuffix = A->getValue(); 1739 LLVM_FALLTHROUGH; 1740 case OPT_fixit: 1741 Opts.ProgramAction = frontend::FixIt; break; 1742 case OPT_emit_module: 1743 Opts.ProgramAction = frontend::GenerateModule; break; 1744 case OPT_emit_module_interface: 1745 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1746 case OPT_emit_header_module: 1747 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1748 case OPT_emit_pch: 1749 Opts.ProgramAction = frontend::GeneratePCH; break; 1750 case OPT_emit_interface_stubs: { 1751 StringRef ArgStr = 1752 Args.hasArg(OPT_interface_stub_version_EQ) 1753 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1754 : "experimental-ifs-v2"; 1755 if (ArgStr == "experimental-yaml-elf-v1" || 1756 ArgStr == "experimental-ifs-v1" || 1757 ArgStr == "experimental-tapi-elf-v1") { 1758 std::string ErrorMessage = 1759 "Invalid interface stub format: " + ArgStr.str() + 1760 " is deprecated."; 1761 Diags.Report(diag::err_drv_invalid_value) 1762 << "Must specify a valid interface stub format type, ie: " 1763 "-interface-stub-version=experimental-ifs-v2" 1764 << ErrorMessage; 1765 } else if (!ArgStr.startswith("experimental-ifs-")) { 1766 std::string ErrorMessage = 1767 "Invalid interface stub format: " + ArgStr.str() + "."; 1768 Diags.Report(diag::err_drv_invalid_value) 1769 << "Must specify a valid interface stub format type, ie: " 1770 "-interface-stub-version=experimental-ifs-v2" 1771 << ErrorMessage; 1772 } else { 1773 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1774 } 1775 break; 1776 } 1777 case OPT_init_only: 1778 Opts.ProgramAction = frontend::InitOnly; break; 1779 case OPT_fsyntax_only: 1780 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1781 case OPT_module_file_info: 1782 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1783 case OPT_verify_pch: 1784 Opts.ProgramAction = frontend::VerifyPCH; break; 1785 case OPT_print_preamble: 1786 Opts.ProgramAction = frontend::PrintPreamble; break; 1787 case OPT_E: 1788 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1789 case OPT_templight_dump: 1790 Opts.ProgramAction = frontend::TemplightDump; break; 1791 case OPT_rewrite_macros: 1792 Opts.ProgramAction = frontend::RewriteMacros; break; 1793 case OPT_rewrite_objc: 1794 Opts.ProgramAction = frontend::RewriteObjC; break; 1795 case OPT_rewrite_test: 1796 Opts.ProgramAction = frontend::RewriteTest; break; 1797 case OPT_analyze: 1798 Opts.ProgramAction = frontend::RunAnalysis; break; 1799 case OPT_migrate: 1800 Opts.ProgramAction = frontend::MigrateSource; break; 1801 case OPT_Eonly: 1802 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1803 case OPT_print_dependency_directives_minimized_source: 1804 Opts.ProgramAction = 1805 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1806 break; 1807 } 1808 } 1809 1810 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1811 Opts.Plugins.emplace_back(A->getValue(0)); 1812 Opts.ProgramAction = frontend::PluginAction; 1813 Opts.ActionName = A->getValue(); 1814 } 1815 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1816 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1817 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1818 1819 for (const std::string &Arg : 1820 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1821 std::string BlockName; 1822 unsigned MajorVersion; 1823 unsigned MinorVersion; 1824 bool Hashed; 1825 std::string UserInfo; 1826 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1827 MinorVersion, Hashed, UserInfo)) { 1828 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1829 1830 continue; 1831 } 1832 1833 // Add the testing module file extension. 1834 Opts.ModuleFileExtensions.push_back( 1835 std::make_shared<TestModuleFileExtension>( 1836 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1837 } 1838 1839 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1840 Opts.CodeCompletionAt = 1841 ParsedSourceLocation::FromString(A->getValue()); 1842 if (Opts.CodeCompletionAt.FileName.empty()) 1843 Diags.Report(diag::err_drv_invalid_value) 1844 << A->getAsString(Args) << A->getValue(); 1845 } 1846 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1847 1848 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1849 Opts.Plugins = Args.getAllArgValues(OPT_load); 1850 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1851 Opts.ShowHelp = Args.hasArg(OPT_help); 1852 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1853 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1854 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1855 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1856 Opts.TimeTraceGranularity = getLastArgIntValue( 1857 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1858 Opts.ShowVersion = Args.hasArg(OPT_version); 1859 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1860 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1861 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1862 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1863 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1864 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1865 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1866 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1867 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1868 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1869 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1870 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1871 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1872 // Only the -fmodule-file=<file> form. 1873 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1874 StringRef Val = A->getValue(); 1875 if (Val.find('=') == StringRef::npos) 1876 Opts.ModuleFiles.push_back(std::string(Val)); 1877 } 1878 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1879 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1880 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1881 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1882 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 1883 1884 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1885 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1886 << "-emit-module"; 1887 1888 Opts.CodeCompleteOpts.IncludeMacros 1889 = Args.hasArg(OPT_code_completion_macros); 1890 Opts.CodeCompleteOpts.IncludeCodePatterns 1891 = Args.hasArg(OPT_code_completion_patterns); 1892 Opts.CodeCompleteOpts.IncludeGlobals 1893 = !Args.hasArg(OPT_no_code_completion_globals); 1894 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1895 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1896 Opts.CodeCompleteOpts.IncludeBriefComments 1897 = Args.hasArg(OPT_code_completion_brief_comments); 1898 Opts.CodeCompleteOpts.IncludeFixIts 1899 = Args.hasArg(OPT_code_completion_with_fixits); 1900 1901 Opts.OverrideRecordLayoutsFile = 1902 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1903 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1904 if (Args.hasArg(OPT_aux_target_cpu)) 1905 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1906 if (Args.hasArg(OPT_aux_target_feature)) 1907 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1908 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1909 1910 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1911 OPT_arcmt_modify, 1912 OPT_arcmt_migrate)) { 1913 switch (A->getOption().getID()) { 1914 default: 1915 llvm_unreachable("missed a case"); 1916 case OPT_arcmt_check: 1917 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1918 break; 1919 case OPT_arcmt_modify: 1920 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1921 break; 1922 case OPT_arcmt_migrate: 1923 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1924 break; 1925 } 1926 } 1927 Opts.MTMigrateDir = 1928 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1929 Opts.ARCMTMigrateReportOut = 1930 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1931 Opts.ARCMTMigrateEmitARCErrors 1932 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1933 1934 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1935 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1936 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1937 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1938 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1939 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1940 if (Args.hasArg(OPT_objcmt_migrate_property)) 1941 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1942 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1943 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1944 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1945 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1946 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1947 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1948 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1949 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1950 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1951 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1952 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1953 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1954 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1955 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1956 if (Args.hasArg(OPT_objcmt_atomic_property)) 1957 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1958 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1959 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1960 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1961 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1962 if (Args.hasArg(OPT_objcmt_migrate_all)) 1963 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1964 1965 Opts.ObjCMTWhiteListPath = 1966 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 1967 1968 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1969 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1970 Diags.Report(diag::err_drv_argument_not_allowed_with) 1971 << "ARC migration" << "ObjC migration"; 1972 } 1973 1974 InputKind DashX(Language::Unknown); 1975 if (const Arg *A = Args.getLastArg(OPT_x)) { 1976 StringRef XValue = A->getValue(); 1977 1978 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1979 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1980 bool Preprocessed = XValue.consume_back("-cpp-output"); 1981 bool ModuleMap = XValue.consume_back("-module-map"); 1982 IsHeaderFile = 1983 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1984 1985 // Principal languages. 1986 DashX = llvm::StringSwitch<InputKind>(XValue) 1987 .Case("c", Language::C) 1988 .Case("cl", Language::OpenCL) 1989 .Case("cuda", Language::CUDA) 1990 .Case("hip", Language::HIP) 1991 .Case("c++", Language::CXX) 1992 .Case("objective-c", Language::ObjC) 1993 .Case("objective-c++", Language::ObjCXX) 1994 .Case("renderscript", Language::RenderScript) 1995 .Default(Language::Unknown); 1996 1997 // "objc[++]-cpp-output" is an acceptable synonym for 1998 // "objective-c[++]-cpp-output". 1999 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2000 DashX = llvm::StringSwitch<InputKind>(XValue) 2001 .Case("objc", Language::ObjC) 2002 .Case("objc++", Language::ObjCXX) 2003 .Default(Language::Unknown); 2004 2005 // Some special cases cannot be combined with suffixes. 2006 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2007 DashX = llvm::StringSwitch<InputKind>(XValue) 2008 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2009 .Case("assembler-with-cpp", Language::Asm) 2010 .Cases("ast", "pcm", 2011 InputKind(Language::Unknown, InputKind::Precompiled)) 2012 .Case("ir", Language::LLVM_IR) 2013 .Default(Language::Unknown); 2014 2015 if (DashX.isUnknown()) 2016 Diags.Report(diag::err_drv_invalid_value) 2017 << A->getAsString(Args) << A->getValue(); 2018 2019 if (Preprocessed) 2020 DashX = DashX.getPreprocessed(); 2021 if (ModuleMap) 2022 DashX = DashX.withFormat(InputKind::ModuleMap); 2023 } 2024 2025 // '-' is the default input if none is given. 2026 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2027 Opts.Inputs.clear(); 2028 if (Inputs.empty()) 2029 Inputs.push_back("-"); 2030 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2031 InputKind IK = DashX; 2032 if (IK.isUnknown()) { 2033 IK = FrontendOptions::getInputKindForExtension( 2034 StringRef(Inputs[i]).rsplit('.').second); 2035 // FIXME: Warn on this? 2036 if (IK.isUnknown()) 2037 IK = Language::C; 2038 // FIXME: Remove this hack. 2039 if (i == 0) 2040 DashX = IK; 2041 } 2042 2043 bool IsSystem = false; 2044 2045 // The -emit-module action implicitly takes a module map. 2046 if (Opts.ProgramAction == frontend::GenerateModule && 2047 IK.getFormat() == InputKind::Source) { 2048 IK = IK.withFormat(InputKind::ModuleMap); 2049 IsSystem = Opts.IsSystemModule; 2050 } 2051 2052 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2053 } 2054 2055 return DashX; 2056 } 2057 2058 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2059 void *MainAddr) { 2060 std::string ClangExecutable = 2061 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2062 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2063 } 2064 2065 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2066 const std::string &WorkingDir) { 2067 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2068 Opts.Verbose = Args.hasArg(OPT_v); 2069 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2070 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2071 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2072 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2073 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2074 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2075 2076 // Canonicalize -fmodules-cache-path before storing it. 2077 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2078 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2079 if (WorkingDir.empty()) 2080 llvm::sys::fs::make_absolute(P); 2081 else 2082 llvm::sys::fs::make_absolute(WorkingDir, P); 2083 } 2084 llvm::sys::path::remove_dots(P); 2085 Opts.ModuleCachePath = std::string(P.str()); 2086 2087 Opts.ModuleUserBuildPath = 2088 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2089 // Only the -fmodule-file=<name>=<file> form. 2090 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2091 StringRef Val = A->getValue(); 2092 if (Val.find('=') != StringRef::npos){ 2093 auto Split = Val.split('='); 2094 Opts.PrebuiltModuleFiles.insert( 2095 {std::string(Split.first), std::string(Split.second)}); 2096 } 2097 } 2098 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2099 Opts.AddPrebuiltModulePath(A->getValue()); 2100 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2101 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2102 Opts.ModulesStrictContextHash = Args.hasArg(OPT_fmodules_strict_context_hash); 2103 Opts.ModulesValidateDiagnosticOptions = 2104 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2105 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2106 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2107 Opts.ModuleCachePruneInterval = 2108 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2109 Opts.ModuleCachePruneAfter = 2110 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2111 Opts.ModulesValidateOncePerBuildSession = 2112 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2113 Opts.BuildSessionTimestamp = 2114 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2115 Opts.ModulesValidateSystemHeaders = 2116 Args.hasArg(OPT_fmodules_validate_system_headers); 2117 Opts.ValidateASTInputFilesContent = 2118 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2119 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2120 Opts.ModuleFormat = A->getValue(); 2121 2122 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2123 StringRef MacroDef = A->getValue(); 2124 Opts.ModulesIgnoreMacros.insert( 2125 llvm::CachedHashString(MacroDef.split('=').first)); 2126 } 2127 2128 // Add -I..., -F..., and -index-header-map options in order. 2129 bool IsIndexHeaderMap = false; 2130 bool IsSysrootSpecified = 2131 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2132 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2133 if (A->getOption().matches(OPT_index_header_map)) { 2134 // -index-header-map applies to the next -I or -F. 2135 IsIndexHeaderMap = true; 2136 continue; 2137 } 2138 2139 frontend::IncludeDirGroup Group = 2140 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2141 2142 bool IsFramework = A->getOption().matches(OPT_F); 2143 std::string Path = A->getValue(); 2144 2145 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2146 SmallString<32> Buffer; 2147 llvm::sys::path::append(Buffer, Opts.Sysroot, 2148 llvm::StringRef(A->getValue()).substr(1)); 2149 Path = std::string(Buffer.str()); 2150 } 2151 2152 Opts.AddPath(Path, Group, IsFramework, 2153 /*IgnoreSysroot*/ true); 2154 IsIndexHeaderMap = false; 2155 } 2156 2157 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2158 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2159 for (const auto *A : 2160 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2161 if (A->getOption().matches(OPT_iprefix)) 2162 Prefix = A->getValue(); 2163 else if (A->getOption().matches(OPT_iwithprefix)) 2164 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2165 else 2166 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2167 } 2168 2169 for (const auto *A : Args.filtered(OPT_idirafter)) 2170 Opts.AddPath(A->getValue(), frontend::After, false, true); 2171 for (const auto *A : Args.filtered(OPT_iquote)) 2172 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2173 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2174 Opts.AddPath(A->getValue(), frontend::System, false, 2175 !A->getOption().matches(OPT_iwithsysroot)); 2176 for (const auto *A : Args.filtered(OPT_iframework)) 2177 Opts.AddPath(A->getValue(), frontend::System, true, true); 2178 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2179 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2180 /*IgnoreSysRoot=*/false); 2181 2182 // Add the paths for the various language specific isystem flags. 2183 for (const auto *A : Args.filtered(OPT_c_isystem)) 2184 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2185 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2186 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2187 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2188 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2189 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2190 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2191 2192 // Add the internal paths from a driver that detects standard include paths. 2193 for (const auto *A : 2194 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2195 frontend::IncludeDirGroup Group = frontend::System; 2196 if (A->getOption().matches(OPT_internal_externc_isystem)) 2197 Group = frontend::ExternCSystem; 2198 Opts.AddPath(A->getValue(), Group, false, true); 2199 } 2200 2201 // Add the path prefixes which are implicitly treated as being system headers. 2202 for (const auto *A : 2203 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2204 Opts.AddSystemHeaderPrefix( 2205 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2206 2207 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2208 Opts.AddVFSOverlayFile(A->getValue()); 2209 } 2210 2211 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2212 const llvm::Triple &T, 2213 PreprocessorOptions &PPOpts, 2214 LangStandard::Kind LangStd) { 2215 // Set some properties which depend solely on the input kind; it would be nice 2216 // to move these to the language standard, and have the driver resolve the 2217 // input kind + language standard. 2218 // 2219 // FIXME: Perhaps a better model would be for a single source file to have 2220 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2221 // simultaneously active? 2222 if (IK.getLanguage() == Language::Asm) { 2223 Opts.AsmPreprocessor = 1; 2224 } else if (IK.isObjectiveC()) { 2225 Opts.ObjC = 1; 2226 } 2227 2228 if (LangStd == LangStandard::lang_unspecified) { 2229 // Based on the base language, pick one. 2230 switch (IK.getLanguage()) { 2231 case Language::Unknown: 2232 case Language::LLVM_IR: 2233 llvm_unreachable("Invalid input kind!"); 2234 case Language::OpenCL: 2235 LangStd = LangStandard::lang_opencl10; 2236 break; 2237 case Language::CUDA: 2238 LangStd = LangStandard::lang_cuda; 2239 break; 2240 case Language::Asm: 2241 case Language::C: 2242 #if defined(CLANG_DEFAULT_STD_C) 2243 LangStd = CLANG_DEFAULT_STD_C; 2244 #else 2245 // The PS4 uses C99 as the default C standard. 2246 if (T.isPS4()) 2247 LangStd = LangStandard::lang_gnu99; 2248 else 2249 LangStd = LangStandard::lang_gnu17; 2250 #endif 2251 break; 2252 case Language::ObjC: 2253 #if defined(CLANG_DEFAULT_STD_C) 2254 LangStd = CLANG_DEFAULT_STD_C; 2255 #else 2256 LangStd = LangStandard::lang_gnu11; 2257 #endif 2258 break; 2259 case Language::CXX: 2260 case Language::ObjCXX: 2261 #if defined(CLANG_DEFAULT_STD_CXX) 2262 LangStd = CLANG_DEFAULT_STD_CXX; 2263 #else 2264 LangStd = LangStandard::lang_gnucxx14; 2265 #endif 2266 break; 2267 case Language::RenderScript: 2268 LangStd = LangStandard::lang_c99; 2269 break; 2270 case Language::HIP: 2271 LangStd = LangStandard::lang_hip; 2272 break; 2273 } 2274 } 2275 2276 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2277 Opts.LineComment = Std.hasLineComments(); 2278 Opts.C99 = Std.isC99(); 2279 Opts.C11 = Std.isC11(); 2280 Opts.C17 = Std.isC17(); 2281 Opts.C2x = Std.isC2x(); 2282 Opts.CPlusPlus = Std.isCPlusPlus(); 2283 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2284 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2285 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2286 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2287 Opts.Digraphs = Std.hasDigraphs(); 2288 Opts.GNUMode = Std.isGNUMode(); 2289 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2290 Opts.GNUCVersion = 0; 2291 Opts.HexFloats = Std.hasHexFloats(); 2292 Opts.ImplicitInt = Std.hasImplicitInt(); 2293 2294 // Set OpenCL Version. 2295 Opts.OpenCL = Std.isOpenCL(); 2296 if (LangStd == LangStandard::lang_opencl10) 2297 Opts.OpenCLVersion = 100; 2298 else if (LangStd == LangStandard::lang_opencl11) 2299 Opts.OpenCLVersion = 110; 2300 else if (LangStd == LangStandard::lang_opencl12) 2301 Opts.OpenCLVersion = 120; 2302 else if (LangStd == LangStandard::lang_opencl20) 2303 Opts.OpenCLVersion = 200; 2304 else if (LangStd == LangStandard::lang_openclcpp) 2305 Opts.OpenCLCPlusPlusVersion = 100; 2306 2307 // OpenCL has some additional defaults. 2308 if (Opts.OpenCL) { 2309 Opts.AltiVec = 0; 2310 Opts.ZVector = 0; 2311 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2312 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2313 Opts.NativeHalfType = 1; 2314 Opts.NativeHalfArgsAndReturns = 1; 2315 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2316 2317 // Include default header file for OpenCL. 2318 if (Opts.IncludeDefaultHeader) { 2319 if (Opts.DeclareOpenCLBuiltins) { 2320 // Only include base header file for builtin types and constants. 2321 PPOpts.Includes.push_back("opencl-c-base.h"); 2322 } else { 2323 PPOpts.Includes.push_back("opencl-c.h"); 2324 } 2325 } 2326 } 2327 2328 Opts.HIP = IK.getLanguage() == Language::HIP; 2329 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2330 if (Opts.CUDA) 2331 // Set default FP_CONTRACT to FAST. 2332 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2333 2334 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2335 if (Opts.RenderScript) { 2336 Opts.NativeHalfType = 1; 2337 Opts.NativeHalfArgsAndReturns = 1; 2338 } 2339 2340 // OpenCL and C++ both have bool, true, false keywords. 2341 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2342 2343 // OpenCL has half keyword 2344 Opts.Half = Opts.OpenCL; 2345 2346 // C++ has wchar_t keyword. 2347 Opts.WChar = Opts.CPlusPlus; 2348 2349 Opts.GNUKeywords = Opts.GNUMode; 2350 Opts.CXXOperatorNames = Opts.CPlusPlus; 2351 2352 Opts.AlignedAllocation = Opts.CPlusPlus17; 2353 2354 Opts.DollarIdents = !Opts.AsmPreprocessor; 2355 2356 // Enable [[]] attributes in C++11 and C2x by default. 2357 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2358 } 2359 2360 /// Attempt to parse a visibility value out of the given argument. 2361 static Visibility parseVisibility(Arg *arg, ArgList &args, 2362 DiagnosticsEngine &diags) { 2363 StringRef value = arg->getValue(); 2364 if (value == "default") { 2365 return DefaultVisibility; 2366 } else if (value == "hidden" || value == "internal") { 2367 return HiddenVisibility; 2368 } else if (value == "protected") { 2369 // FIXME: diagnose if target does not support protected visibility 2370 return ProtectedVisibility; 2371 } 2372 2373 diags.Report(diag::err_drv_invalid_value) 2374 << arg->getAsString(args) << value; 2375 return DefaultVisibility; 2376 } 2377 2378 /// Check if input file kind and language standard are compatible. 2379 static bool IsInputCompatibleWithStandard(InputKind IK, 2380 const LangStandard &S) { 2381 switch (IK.getLanguage()) { 2382 case Language::Unknown: 2383 case Language::LLVM_IR: 2384 llvm_unreachable("should not parse language flags for this input"); 2385 2386 case Language::C: 2387 case Language::ObjC: 2388 case Language::RenderScript: 2389 return S.getLanguage() == Language::C; 2390 2391 case Language::OpenCL: 2392 return S.getLanguage() == Language::OpenCL; 2393 2394 case Language::CXX: 2395 case Language::ObjCXX: 2396 return S.getLanguage() == Language::CXX; 2397 2398 case Language::CUDA: 2399 // FIXME: What -std= values should be permitted for CUDA compilations? 2400 return S.getLanguage() == Language::CUDA || 2401 S.getLanguage() == Language::CXX; 2402 2403 case Language::HIP: 2404 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2405 2406 case Language::Asm: 2407 // Accept (and ignore) all -std= values. 2408 // FIXME: The -std= value is not ignored; it affects the tokenization 2409 // and preprocessing rules if we're preprocessing this asm input. 2410 return true; 2411 } 2412 2413 llvm_unreachable("unexpected input language"); 2414 } 2415 2416 /// Get language name for given input kind. 2417 static const StringRef GetInputKindName(InputKind IK) { 2418 switch (IK.getLanguage()) { 2419 case Language::C: 2420 return "C"; 2421 case Language::ObjC: 2422 return "Objective-C"; 2423 case Language::CXX: 2424 return "C++"; 2425 case Language::ObjCXX: 2426 return "Objective-C++"; 2427 case Language::OpenCL: 2428 return "OpenCL"; 2429 case Language::CUDA: 2430 return "CUDA"; 2431 case Language::RenderScript: 2432 return "RenderScript"; 2433 case Language::HIP: 2434 return "HIP"; 2435 2436 case Language::Asm: 2437 return "Asm"; 2438 case Language::LLVM_IR: 2439 return "LLVM IR"; 2440 2441 case Language::Unknown: 2442 break; 2443 } 2444 llvm_unreachable("unknown input language"); 2445 } 2446 2447 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2448 const TargetOptions &TargetOpts, 2449 PreprocessorOptions &PPOpts, 2450 DiagnosticsEngine &Diags) { 2451 // FIXME: Cleanup per-file based stuff. 2452 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2453 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2454 LangStd = LangStandard::getLangKind(A->getValue()); 2455 if (LangStd == LangStandard::lang_unspecified) { 2456 Diags.Report(diag::err_drv_invalid_value) 2457 << A->getAsString(Args) << A->getValue(); 2458 // Report supported standards with short description. 2459 for (unsigned KindValue = 0; 2460 KindValue != LangStandard::lang_unspecified; 2461 ++KindValue) { 2462 const LangStandard &Std = LangStandard::getLangStandardForKind( 2463 static_cast<LangStandard::Kind>(KindValue)); 2464 if (IsInputCompatibleWithStandard(IK, Std)) { 2465 auto Diag = Diags.Report(diag::note_drv_use_standard); 2466 Diag << Std.getName() << Std.getDescription(); 2467 unsigned NumAliases = 0; 2468 #define LANGSTANDARD(id, name, lang, desc, features) 2469 #define LANGSTANDARD_ALIAS(id, alias) \ 2470 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2471 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2472 #include "clang/Basic/LangStandards.def" 2473 Diag << NumAliases; 2474 #define LANGSTANDARD(id, name, lang, desc, features) 2475 #define LANGSTANDARD_ALIAS(id, alias) \ 2476 if (KindValue == LangStandard::lang_##id) Diag << alias; 2477 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2478 #include "clang/Basic/LangStandards.def" 2479 } 2480 } 2481 } else { 2482 // Valid standard, check to make sure language and standard are 2483 // compatible. 2484 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2485 if (!IsInputCompatibleWithStandard(IK, Std)) { 2486 Diags.Report(diag::err_drv_argument_not_allowed_with) 2487 << A->getAsString(Args) << GetInputKindName(IK); 2488 } 2489 } 2490 } 2491 2492 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2493 Opts.DllExportInlines = false; 2494 2495 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2496 StringRef Name = A->getValue(); 2497 if (Name == "full" || Name == "branch") { 2498 Opts.CFProtectionBranch = 1; 2499 } 2500 } 2501 // -cl-std only applies for OpenCL language standards. 2502 // Override the -std option in this case. 2503 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2504 LangStandard::Kind OpenCLLangStd 2505 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2506 .Cases("cl", "CL", LangStandard::lang_opencl10) 2507 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2508 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2509 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2510 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2511 .Default(LangStandard::lang_unspecified); 2512 2513 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2514 Diags.Report(diag::err_drv_invalid_value) 2515 << A->getAsString(Args) << A->getValue(); 2516 } 2517 else 2518 LangStd = OpenCLLangStd; 2519 } 2520 2521 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2522 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2523 if (Opts.SYCL) { 2524 // -sycl-std applies to any SYCL source, not only those containing kernels, 2525 // but also those using the SYCL API 2526 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2527 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2528 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2529 .Default(0U); 2530 2531 if (Opts.SYCLVersion == 0U) { 2532 // User has passed an invalid value to the flag, this is an error 2533 Diags.Report(diag::err_drv_invalid_value) 2534 << A->getAsString(Args) << A->getValue(); 2535 } 2536 } 2537 } 2538 2539 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2540 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2541 2542 llvm::Triple T(TargetOpts.Triple); 2543 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2544 2545 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2546 // This option should be deprecated for CL > 1.0 because 2547 // this option was added for compatibility with OpenCL 1.0. 2548 if (Args.getLastArg(OPT_cl_strict_aliasing) 2549 && Opts.OpenCLVersion > 100) { 2550 Diags.Report(diag::warn_option_invalid_ocl_version) 2551 << Opts.getOpenCLVersionTuple().getAsString() 2552 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2553 } 2554 2555 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2556 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2557 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2558 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2559 // name, as it doesn't seem a useful distinction. 2560 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2561 Opts.GNUKeywords); 2562 2563 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2564 2565 if (Args.hasArg(OPT_fno_operator_names)) 2566 Opts.CXXOperatorNames = 0; 2567 2568 if (Args.hasArg(OPT_fcuda_is_device)) 2569 Opts.CUDAIsDevice = 1; 2570 2571 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2572 Opts.CUDAAllowVariadicFunctions = 1; 2573 2574 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2575 Opts.CUDAHostDeviceConstexpr = 0; 2576 2577 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2578 Opts.CUDADeviceApproxTranscendentals = 1; 2579 2580 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2581 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2582 if (Opts.HIP) 2583 Opts.GPUAllowDeviceInit = 1; 2584 else 2585 Diags.Report(diag::warn_ignored_hip_only_option) 2586 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2587 } 2588 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2589 if (Opts.HIP) 2590 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2591 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2592 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2593 Diags.Report(diag::warn_ignored_hip_only_option) 2594 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2595 2596 if (Opts.ObjC) { 2597 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2598 StringRef value = arg->getValue(); 2599 if (Opts.ObjCRuntime.tryParse(value)) 2600 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2601 } 2602 2603 if (Args.hasArg(OPT_fobjc_gc_only)) 2604 Opts.setGC(LangOptions::GCOnly); 2605 else if (Args.hasArg(OPT_fobjc_gc)) 2606 Opts.setGC(LangOptions::HybridGC); 2607 else if (Args.hasArg(OPT_fobjc_arc)) { 2608 Opts.ObjCAutoRefCount = 1; 2609 if (!Opts.ObjCRuntime.allowsARC()) 2610 Diags.Report(diag::err_arc_unsupported_on_runtime); 2611 } 2612 2613 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2614 // whether the feature is actually enabled. This is predominantly 2615 // determined by -fobjc-runtime, but we allow it to be overridden 2616 // from the command line for testing purposes. 2617 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2618 Opts.ObjCWeakRuntime = 1; 2619 else 2620 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2621 2622 // ObjCWeak determines whether __weak is actually enabled. 2623 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2624 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2625 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2626 assert(!Opts.ObjCWeak); 2627 } else if (Opts.getGC() != LangOptions::NonGC) { 2628 Diags.Report(diag::err_objc_weak_with_gc); 2629 } else if (!Opts.ObjCWeakRuntime) { 2630 Diags.Report(diag::err_objc_weak_unsupported); 2631 } else { 2632 Opts.ObjCWeak = 1; 2633 } 2634 } else if (Opts.ObjCAutoRefCount) { 2635 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2636 } 2637 2638 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2639 Opts.ObjCInferRelatedResultType = 0; 2640 2641 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2642 Opts.ObjCSubscriptingLegacyRuntime = 2643 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2644 } 2645 2646 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2647 // Check that the version has 1 to 3 components and the minor and patch 2648 // versions fit in two decimal digits. 2649 VersionTuple GNUCVer; 2650 bool Invalid = GNUCVer.tryParse(A->getValue()); 2651 unsigned Major = GNUCVer.getMajor(); 2652 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2653 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2654 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2655 Diags.Report(diag::err_drv_invalid_value) 2656 << A->getAsString(Args) << A->getValue(); 2657 } 2658 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2659 } 2660 2661 if (Args.hasArg(OPT_fgnu89_inline)) { 2662 if (Opts.CPlusPlus) 2663 Diags.Report(diag::err_drv_argument_not_allowed_with) 2664 << "-fgnu89-inline" << GetInputKindName(IK); 2665 else 2666 Opts.GNUInline = 1; 2667 } 2668 2669 if (Args.hasArg(OPT_fapple_kext)) { 2670 if (!Opts.CPlusPlus) 2671 Diags.Report(diag::warn_c_kext); 2672 else 2673 Opts.AppleKext = 1; 2674 } 2675 2676 if (Args.hasArg(OPT_print_ivar_layout)) 2677 Opts.ObjCGCBitmapPrint = 1; 2678 2679 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2680 Opts.NoConstantCFStrings = 1; 2681 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2682 Opts.CFRuntime = 2683 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2684 .Cases("unspecified", "standalone", "objc", 2685 LangOptions::CoreFoundationABI::ObjectiveC) 2686 .Cases("swift", "swift-5.0", 2687 LangOptions::CoreFoundationABI::Swift5_0) 2688 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2689 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2690 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2691 2692 if (Args.hasArg(OPT_fzvector)) 2693 Opts.ZVector = 1; 2694 2695 if (Args.hasArg(OPT_pthread)) 2696 Opts.POSIXThreads = 1; 2697 2698 // The value-visibility mode defaults to "default". 2699 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2700 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2701 } else { 2702 Opts.setValueVisibilityMode(DefaultVisibility); 2703 } 2704 2705 // The type-visibility mode defaults to the value-visibility mode. 2706 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2707 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2708 } else { 2709 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2710 } 2711 2712 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2713 Opts.InlineVisibilityHidden = 1; 2714 2715 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2716 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2717 2718 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2719 Opts.SetVisibilityForExternDecls = 1; 2720 2721 if (Args.hasArg(OPT_ftrapv)) { 2722 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2723 // Set the handler, if one is specified. 2724 Opts.OverflowHandler = 2725 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2726 } 2727 else if (Args.hasArg(OPT_fwrapv)) 2728 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2729 2730 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2731 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2732 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2733 Opts.MSCompatibilityVersion = 0; 2734 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2735 VersionTuple VT; 2736 if (VT.tryParse(A->getValue())) 2737 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2738 << A->getValue(); 2739 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2740 VT.getMinor().getValueOr(0) * 100000 + 2741 VT.getSubminor().getValueOr(0); 2742 } 2743 2744 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2745 // is specified, or -std is set to a conforming mode. 2746 // Trigraphs are disabled by default in c++1z onwards. 2747 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2748 Opts.Trigraphs = 2749 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2750 2751 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2752 OPT_fno_dollars_in_identifiers, 2753 Opts.DollarIdents); 2754 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2755 Opts.setVtorDispMode( 2756 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2757 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2758 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2759 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2760 Opts.ConstStrings); 2761 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2762 using LaxKind = LangOptions::LaxVectorConversionKind; 2763 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2764 .Case("none", LaxKind::None) 2765 .Case("integer", LaxKind::Integer) 2766 .Case("all", LaxKind::All) 2767 .Default(llvm::None)) 2768 Opts.setLaxVectorConversions(*Kind); 2769 else 2770 Diags.Report(diag::err_drv_invalid_value) 2771 << A->getAsString(Args) << A->getValue(); 2772 } 2773 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2774 Opts.ThreadsafeStatics = 0; 2775 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2776 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2777 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2778 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2779 2780 // -ffixed-point 2781 Opts.FixedPoint = 2782 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2783 !Opts.CPlusPlus; 2784 Opts.PaddingOnUnsignedFixedPoint = 2785 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2786 OPT_fno_padding_on_unsigned_fixed_point, 2787 /*Default=*/false) && 2788 Opts.FixedPoint; 2789 2790 // Handle exception personalities 2791 Arg *A = Args.getLastArg( 2792 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2793 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2794 if (A) { 2795 const Option &Opt = A->getOption(); 2796 llvm::Triple T(TargetOpts.Triple); 2797 if (T.isWindowsMSVCEnvironment()) 2798 Diags.Report(diag::err_fe_invalid_exception_model) 2799 << Opt.getName() << T.str(); 2800 2801 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2802 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2803 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2804 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2805 } 2806 2807 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2808 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2809 2810 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2811 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2812 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2813 && Opts.OpenCLVersion == 200); 2814 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2815 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2816 2817 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2818 Args.hasArg(OPT_fconvergent_functions); 2819 2820 Opts.DoubleSquareBracketAttributes = 2821 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2822 OPT_fno_double_square_bracket_attributes, 2823 Opts.DoubleSquareBracketAttributes); 2824 2825 Opts.CPlusPlusModules = Opts.CPlusPlus2a; 2826 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2827 Opts.Modules = 2828 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2829 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2830 Opts.ModulesDeclUse = 2831 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2832 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2833 // enter a different module (eg, when building a header unit). 2834 Opts.ModulesLocalVisibility = 2835 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2836 Opts.CPlusPlusModules; 2837 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2838 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2839 Opts.ModulesSearchAll = Opts.Modules && 2840 !Args.hasArg(OPT_fno_modules_search_all) && 2841 Args.hasArg(OPT_fmodules_search_all); 2842 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2843 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2844 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2845 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2846 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2847 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2848 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2849 .Case("char", 1) 2850 .Case("short", 2) 2851 .Case("int", 4) 2852 .Default(0); 2853 if (Opts.WCharSize == 0) 2854 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2855 } 2856 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2857 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2858 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2859 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2860 if (!Opts.NoBuiltin) 2861 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2862 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2863 Opts.RelaxedTemplateTemplateArgs = 2864 Args.hasArg(OPT_frelaxed_template_template_args); 2865 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2866 Opts.AlignedAllocation = 2867 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2868 Opts.AlignedAllocation); 2869 Opts.AlignedAllocationUnavailable = 2870 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2871 Opts.NewAlignOverride = 2872 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2873 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2874 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2875 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2876 << A->getValue(); 2877 Opts.NewAlignOverride = 0; 2878 } 2879 Opts.ConceptSatisfactionCaching = 2880 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2881 if (Args.hasArg(OPT_fconcepts_ts)) 2882 Diags.Report(diag::warn_fe_concepts_ts_flag); 2883 Opts.RecoveryAST = 2884 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, false); 2885 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2886 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2887 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2888 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2889 Opts.InstantiationDepth = 2890 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2891 Opts.ArrowDepth = 2892 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2893 Opts.ConstexprCallDepth = 2894 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2895 Opts.ConstexprStepLimit = 2896 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2897 Opts.EnableNewConstInterp = 2898 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2899 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2900 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2901 Opts.NumLargeByValueCopy = 2902 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2903 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2904 Opts.ObjCConstantStringClass = 2905 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2906 Opts.ObjCDefaultSynthProperties = 2907 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2908 Opts.EncodeExtendedBlockSig = 2909 Args.hasArg(OPT_fencode_extended_block_signature); 2910 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2911 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2912 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2913 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2914 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 2915 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2916 ? 128 2917 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2918 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2919 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2920 Opts.ROPI = Args.hasArg(OPT_fropi); 2921 Opts.RWPI = Args.hasArg(OPT_frwpi); 2922 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2923 Opts.Static = Args.hasArg(OPT_static_define); 2924 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2925 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2926 || Args.hasArg(OPT_fdump_record_layouts); 2927 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2928 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2929 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2930 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2931 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2932 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2933 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2934 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2935 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2936 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2937 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2938 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2939 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 2940 Opts.CurrentModule = Opts.ModuleName; 2941 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2942 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2943 llvm::sort(Opts.ModuleFeatures); 2944 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2945 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2946 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2947 // is enabled. 2948 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2949 | Opts.NativeHalfArgsAndReturns; 2950 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2951 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2952 2953 // __declspec is enabled by default for the PS4 by the driver, and also 2954 // enabled for Microsoft Extensions or Borland Extensions, here. 2955 // 2956 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2957 // CUDA extension. However, it is required for supporting 2958 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2959 // been rewritten in terms of something more generic, remove the Opts.CUDA 2960 // term here. 2961 Opts.DeclSpecKeyword = 2962 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2963 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2964 2965 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2966 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2967 .Case("target", LangOptions::ASMM_Target) 2968 .Case("no", LangOptions::ASMM_Off) 2969 .Case("yes", LangOptions::ASMM_On) 2970 .Default(255)) { 2971 default: 2972 Diags.Report(diag::err_drv_invalid_value) 2973 << "-faddress-space-map-mangling=" << A->getValue(); 2974 break; 2975 case LangOptions::ASMM_Target: 2976 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2977 break; 2978 case LangOptions::ASMM_On: 2979 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2980 break; 2981 case LangOptions::ASMM_Off: 2982 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2983 break; 2984 } 2985 } 2986 2987 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2988 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2989 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2990 A->getValue()) 2991 .Case("single", 2992 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2993 .Case("multiple", 2994 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2995 .Case("virtual", 2996 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2997 .Default(LangOptions::PPTMK_BestCase); 2998 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2999 Diags.Report(diag::err_drv_invalid_value) 3000 << "-fms-memptr-rep=" << A->getValue(); 3001 3002 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3003 } 3004 3005 // Check for MS default calling conventions being specified. 3006 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3007 LangOptions::DefaultCallingConvention DefaultCC = 3008 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3009 .Case("cdecl", LangOptions::DCC_CDecl) 3010 .Case("fastcall", LangOptions::DCC_FastCall) 3011 .Case("stdcall", LangOptions::DCC_StdCall) 3012 .Case("vectorcall", LangOptions::DCC_VectorCall) 3013 .Case("regcall", LangOptions::DCC_RegCall) 3014 .Default(LangOptions::DCC_None); 3015 if (DefaultCC == LangOptions::DCC_None) 3016 Diags.Report(diag::err_drv_invalid_value) 3017 << "-fdefault-calling-conv=" << A->getValue(); 3018 3019 llvm::Triple T(TargetOpts.Triple); 3020 llvm::Triple::ArchType Arch = T.getArch(); 3021 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3022 DefaultCC == LangOptions::DCC_StdCall) && 3023 Arch != llvm::Triple::x86; 3024 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3025 DefaultCC == LangOptions::DCC_RegCall) && 3026 !T.isX86(); 3027 if (emitError) 3028 Diags.Report(diag::err_drv_argument_not_allowed_with) 3029 << A->getSpelling() << T.getTriple(); 3030 else 3031 Opts.setDefaultCallingConv(DefaultCC); 3032 } 3033 3034 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3035 3036 // -mrtd option 3037 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3038 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3039 Diags.Report(diag::err_drv_argument_not_allowed_with) 3040 << A->getSpelling() << "-fdefault-calling-conv"; 3041 else { 3042 llvm::Triple T(TargetOpts.Triple); 3043 if (T.getArch() != llvm::Triple::x86) 3044 Diags.Report(diag::err_drv_argument_not_allowed_with) 3045 << A->getSpelling() << T.getTriple(); 3046 else 3047 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3048 } 3049 } 3050 3051 // Check if -fopenmp is specified and set default version to 4.5. 3052 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 45 : 0; 3053 // Check if -fopenmp-simd is specified. 3054 bool IsSimdSpecified = 3055 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3056 /*Default=*/false); 3057 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3058 Opts.OpenMPUseTLS = 3059 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3060 Opts.OpenMPIsDevice = 3061 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3062 Opts.OpenMPIRBuilder = 3063 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3064 bool IsTargetSpecified = 3065 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3066 3067 if (Opts.OpenMP || Opts.OpenMPSimd) { 3068 if (int Version = getLastArgIntValue( 3069 Args, OPT_fopenmp_version_EQ, 3070 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 3071 Opts.OpenMP = Version; 3072 else if (IsSimdSpecified || IsTargetSpecified) 3073 Opts.OpenMP = 45; 3074 // Provide diagnostic when a given target is not expected to be an OpenMP 3075 // device or host. 3076 if (!Opts.OpenMPIsDevice) { 3077 switch (T.getArch()) { 3078 default: 3079 break; 3080 // Add unsupported host targets here: 3081 case llvm::Triple::nvptx: 3082 case llvm::Triple::nvptx64: 3083 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3084 << TargetOpts.Triple; 3085 break; 3086 } 3087 } 3088 } 3089 3090 // Set the flag to prevent the implementation from emitting device exception 3091 // handling code for those requiring so. 3092 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 3093 Opts.Exceptions = 0; 3094 Opts.CXXExceptions = 0; 3095 } 3096 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3097 Opts.OpenMPCUDANumSMs = 3098 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3099 Opts.OpenMPCUDANumSMs, Diags); 3100 Opts.OpenMPCUDABlocksPerSM = 3101 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3102 Opts.OpenMPCUDABlocksPerSM, Diags); 3103 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3104 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3105 Opts.OpenMPCUDAReductionBufNum, Diags); 3106 } 3107 3108 // Prevent auto-widening the representation of loop counters during an 3109 // OpenMP collapse clause. 3110 Opts.OpenMPOptimisticCollapse = 3111 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3112 3113 // Get the OpenMP target triples if any. 3114 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3115 3116 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3117 llvm::Triple TT(A->getValue(i)); 3118 3119 if (TT.getArch() == llvm::Triple::UnknownArch || 3120 !(TT.getArch() == llvm::Triple::aarch64 || 3121 TT.getArch() == llvm::Triple::ppc || 3122 TT.getArch() == llvm::Triple::ppc64 || 3123 TT.getArch() == llvm::Triple::ppc64le || 3124 TT.getArch() == llvm::Triple::nvptx || 3125 TT.getArch() == llvm::Triple::nvptx64 || 3126 TT.getArch() == llvm::Triple::x86 || 3127 TT.getArch() == llvm::Triple::x86_64)) 3128 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3129 else 3130 Opts.OMPTargetTriples.push_back(TT); 3131 } 3132 } 3133 3134 // Get OpenMP host file path if any and report if a non existent file is 3135 // found 3136 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3137 Opts.OMPHostIRFile = A->getValue(); 3138 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3139 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3140 << Opts.OMPHostIRFile; 3141 } 3142 3143 // Set CUDA mode for OpenMP target NVPTX if specified in options 3144 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 3145 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3146 3147 // Set CUDA mode for OpenMP target NVPTX if specified in options 3148 Opts.OpenMPCUDAForceFullRuntime = 3149 Opts.OpenMPIsDevice && T.isNVPTX() && 3150 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3151 3152 // Record whether the __DEPRECATED define was requested. 3153 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3154 OPT_fno_deprecated_macro, 3155 Opts.Deprecated); 3156 3157 // FIXME: Eliminate this dependency. 3158 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3159 OptSize = getOptimizationLevelSize(Args); 3160 Opts.Optimize = Opt != 0; 3161 Opts.OptimizeSize = OptSize != 0; 3162 3163 // This is the __NO_INLINE__ define, which just depends on things like the 3164 // optimization level and -fno-inline, not actually whether the backend has 3165 // inlining enabled. 3166 Opts.NoInlineDefine = !Opts.Optimize; 3167 if (Arg *InlineArg = Args.getLastArg( 3168 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3169 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3170 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3171 Opts.NoInlineDefine = true; 3172 3173 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 3174 Args.hasArg(OPT_cl_fast_relaxed_math); 3175 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3176 Args.hasArg(OPT_cl_finite_math_only) || 3177 Args.hasArg(OPT_cl_fast_relaxed_math); 3178 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3179 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3180 Args.hasArg(OPT_cl_fast_relaxed_math); 3181 3182 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3183 StringRef Val = A->getValue(); 3184 if (Val == "fast") 3185 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 3186 else if (Val == "on") 3187 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 3188 else if (Val == "off") 3189 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 3190 else 3191 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3192 } 3193 3194 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3195 if (Args.hasArg(OPT_frounding_math)) { 3196 FPRM = llvm::RoundingMode::Dynamic; 3197 } 3198 Opts.setFPRoundingMode(FPRM); 3199 3200 if (Args.hasArg(OPT_ftrapping_math)) { 3201 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3202 } 3203 3204 if (Args.hasArg(OPT_fno_trapping_math)) { 3205 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3206 } 3207 3208 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3209 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3210 StringRef Val = A->getValue(); 3211 if (Val.equals("ignore")) 3212 FPEB = LangOptions::FPE_Ignore; 3213 else if (Val.equals("maytrap")) 3214 FPEB = LangOptions::FPE_MayTrap; 3215 else if (Val.equals("strict")) 3216 FPEB = LangOptions::FPE_Strict; 3217 else 3218 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3219 } 3220 Opts.setFPExceptionMode(FPEB); 3221 3222 Opts.RetainCommentsFromSystemHeaders = 3223 Args.hasArg(OPT_fretain_comments_from_system_headers); 3224 3225 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3226 switch (SSP) { 3227 default: 3228 Diags.Report(diag::err_drv_invalid_value) 3229 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3230 break; 3231 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3232 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3233 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3234 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3235 } 3236 3237 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3238 StringRef Val = A->getValue(); 3239 if (Val == "uninitialized") 3240 Opts.setTrivialAutoVarInit( 3241 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3242 else if (Val == "zero") 3243 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3244 else if (Val == "pattern") 3245 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3246 else 3247 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3248 } 3249 3250 // Parse -fsanitize= arguments. 3251 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3252 Diags, Opts.Sanitize); 3253 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3254 Opts.SanitizeAddressFieldPadding = 3255 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3256 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3257 std::vector<std::string> systemBlacklists = 3258 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3259 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3260 systemBlacklists.begin(), 3261 systemBlacklists.end()); 3262 3263 // -fxray-instrument 3264 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3265 Opts.XRayAlwaysEmitCustomEvents = 3266 Args.hasArg(OPT_fxray_always_emit_customevents); 3267 Opts.XRayAlwaysEmitTypedEvents = 3268 Args.hasArg(OPT_fxray_always_emit_typedevents); 3269 3270 // -fxray-{always,never}-instrument= filenames. 3271 Opts.XRayAlwaysInstrumentFiles = 3272 Args.getAllArgValues(OPT_fxray_always_instrument); 3273 Opts.XRayNeverInstrumentFiles = 3274 Args.getAllArgValues(OPT_fxray_never_instrument); 3275 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3276 3277 // -fforce-emit-vtables 3278 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3279 3280 // -fallow-editor-placeholders 3281 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3282 3283 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3284 3285 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3286 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3287 3288 StringRef Ver = A->getValue(); 3289 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3290 unsigned Major, Minor = 0; 3291 3292 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3293 // y or y.0 (4 <= y <= current version). 3294 if (!VerParts.first.startswith("0") && 3295 !VerParts.first.getAsInteger(10, Major) && 3296 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3297 (Major == 3 ? VerParts.second.size() == 1 && 3298 !VerParts.second.getAsInteger(10, Minor) 3299 : VerParts.first.size() == Ver.size() || 3300 VerParts.second == "0")) { 3301 // Got a valid version number. 3302 if (Major == 3 && Minor <= 8) 3303 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3304 else if (Major <= 4) 3305 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3306 else if (Major <= 6) 3307 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3308 else if (Major <= 7) 3309 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3310 else if (Major <= 9) 3311 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3312 } else if (Ver != "latest") { 3313 Diags.Report(diag::err_drv_invalid_value) 3314 << A->getAsString(Args) << A->getValue(); 3315 } 3316 } 3317 3318 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3319 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3320 3321 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3322 3323 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3324 StringRef SignScope = A->getValue(); 3325 3326 if (SignScope.equals_lower("none")) 3327 Opts.setSignReturnAddressScope( 3328 LangOptions::SignReturnAddressScopeKind::None); 3329 else if (SignScope.equals_lower("all")) 3330 Opts.setSignReturnAddressScope( 3331 LangOptions::SignReturnAddressScopeKind::All); 3332 else if (SignScope.equals_lower("non-leaf")) 3333 Opts.setSignReturnAddressScope( 3334 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3335 else 3336 Diags.Report(diag::err_drv_invalid_value) 3337 << A->getAsString(Args) << SignScope; 3338 3339 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3340 StringRef SignKey = A->getValue(); 3341 if (!SignScope.empty() && !SignKey.empty()) { 3342 if (SignKey.equals_lower("a_key")) 3343 Opts.setSignReturnAddressKey( 3344 LangOptions::SignReturnAddressKeyKind::AKey); 3345 else if (SignKey.equals_lower("b_key")) 3346 Opts.setSignReturnAddressKey( 3347 LangOptions::SignReturnAddressKeyKind::BKey); 3348 else 3349 Diags.Report(diag::err_drv_invalid_value) 3350 << A->getAsString(Args) << SignKey; 3351 } 3352 } 3353 } 3354 3355 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3356 } 3357 3358 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3359 switch (Action) { 3360 case frontend::ASTDeclList: 3361 case frontend::ASTDump: 3362 case frontend::ASTPrint: 3363 case frontend::ASTView: 3364 case frontend::EmitAssembly: 3365 case frontend::EmitBC: 3366 case frontend::EmitHTML: 3367 case frontend::EmitLLVM: 3368 case frontend::EmitLLVMOnly: 3369 case frontend::EmitCodeGenOnly: 3370 case frontend::EmitObj: 3371 case frontend::FixIt: 3372 case frontend::GenerateModule: 3373 case frontend::GenerateModuleInterface: 3374 case frontend::GenerateHeaderModule: 3375 case frontend::GeneratePCH: 3376 case frontend::GenerateInterfaceStubs: 3377 case frontend::ParseSyntaxOnly: 3378 case frontend::ModuleFileInfo: 3379 case frontend::VerifyPCH: 3380 case frontend::PluginAction: 3381 case frontend::RewriteObjC: 3382 case frontend::RewriteTest: 3383 case frontend::RunAnalysis: 3384 case frontend::TemplightDump: 3385 case frontend::MigrateSource: 3386 return false; 3387 3388 case frontend::DumpCompilerOptions: 3389 case frontend::DumpRawTokens: 3390 case frontend::DumpTokens: 3391 case frontend::InitOnly: 3392 case frontend::PrintPreamble: 3393 case frontend::PrintPreprocessedInput: 3394 case frontend::RewriteMacros: 3395 case frontend::RunPreprocessorOnly: 3396 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3397 return true; 3398 } 3399 llvm_unreachable("invalid frontend action"); 3400 } 3401 3402 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3403 DiagnosticsEngine &Diags, 3404 frontend::ActionKind Action) { 3405 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3406 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3407 Args.hasArg(OPT_pch_through_hdrstop_use); 3408 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3409 Opts.PCHThroughHeader = 3410 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3411 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3412 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3413 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3414 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3415 3416 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3417 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3418 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3419 3420 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3421 auto Split = StringRef(A).split('='); 3422 Opts.MacroPrefixMap.insert( 3423 {std::string(Split.first), std::string(Split.second)}); 3424 } 3425 3426 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3427 StringRef Value(A->getValue()); 3428 size_t Comma = Value.find(','); 3429 unsigned Bytes = 0; 3430 unsigned EndOfLine = 0; 3431 3432 if (Comma == StringRef::npos || 3433 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3434 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3435 Diags.Report(diag::err_drv_preamble_format); 3436 else { 3437 Opts.PrecompiledPreambleBytes.first = Bytes; 3438 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3439 } 3440 } 3441 3442 // Add the __CET__ macro if a CFProtection option is set. 3443 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3444 StringRef Name = A->getValue(); 3445 if (Name == "branch") 3446 Opts.addMacroDef("__CET__=1"); 3447 else if (Name == "return") 3448 Opts.addMacroDef("__CET__=2"); 3449 else if (Name == "full") 3450 Opts.addMacroDef("__CET__=3"); 3451 } 3452 3453 // Add macros from the command line. 3454 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3455 if (A->getOption().matches(OPT_D)) 3456 Opts.addMacroDef(A->getValue()); 3457 else 3458 Opts.addMacroUndef(A->getValue()); 3459 } 3460 3461 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3462 3463 // Add the ordered list of -includes. 3464 for (const auto *A : Args.filtered(OPT_include)) 3465 Opts.Includes.emplace_back(A->getValue()); 3466 3467 for (const auto *A : Args.filtered(OPT_chain_include)) 3468 Opts.ChainedIncludes.emplace_back(A->getValue()); 3469 3470 for (const auto *A : Args.filtered(OPT_remap_file)) { 3471 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3472 3473 if (Split.second.empty()) { 3474 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3475 continue; 3476 } 3477 3478 Opts.addRemappedFile(Split.first, Split.second); 3479 } 3480 3481 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3482 StringRef Name = A->getValue(); 3483 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3484 .Case("libc++", ARCXX_libcxx) 3485 .Case("libstdc++", ARCXX_libstdcxx) 3486 .Case("none", ARCXX_nolib) 3487 .Default(~0U); 3488 if (Library == ~0U) 3489 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3490 else 3491 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3492 } 3493 3494 // Always avoid lexing editor placeholders when we're just running the 3495 // preprocessor as we never want to emit the 3496 // "editor placeholder in source file" error in PP only mode. 3497 if (isStrictlyPreprocessorAction(Action)) 3498 Opts.LexEditorPlaceholders = false; 3499 3500 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3501 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3502 } 3503 3504 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3505 ArgList &Args, 3506 frontend::ActionKind Action) { 3507 if (isStrictlyPreprocessorAction(Action)) 3508 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3509 else 3510 Opts.ShowCPP = 0; 3511 3512 Opts.ShowComments = Args.hasArg(OPT_C); 3513 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3514 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3515 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3516 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3517 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3518 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3519 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3520 } 3521 3522 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3523 DiagnosticsEngine &Diags) { 3524 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3525 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3526 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3527 StringRef Value = A->getValue(); 3528 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3529 .Case("default", llvm::EABI::Default) 3530 .Case("4", llvm::EABI::EABI4) 3531 .Case("5", llvm::EABI::EABI5) 3532 .Case("gnu", llvm::EABI::GNU) 3533 .Default(llvm::EABI::Unknown); 3534 if (EABIVersion == llvm::EABI::Unknown) 3535 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3536 << Value; 3537 else 3538 Opts.EABIVersion = EABIVersion; 3539 } 3540 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3541 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3542 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3543 Opts.LinkerVersion = 3544 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3545 Opts.Triple = std::string(Args.getLastArgValue(OPT_triple)); 3546 // Use the default target triple if unspecified. 3547 if (Opts.Triple.empty()) 3548 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3549 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3550 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3551 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3552 Opts.NVPTXUseShortPointers = Args.hasFlag( 3553 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3554 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3555 llvm::VersionTuple Version; 3556 if (Version.tryParse(A->getValue())) 3557 Diags.Report(diag::err_drv_invalid_value) 3558 << A->getAsString(Args) << A->getValue(); 3559 else 3560 Opts.SDKVersion = Version; 3561 } 3562 } 3563 3564 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3565 ArrayRef<const char *> CommandLineArgs, 3566 DiagnosticsEngine &Diags) { 3567 bool Success = true; 3568 3569 // Parse the arguments. 3570 const OptTable &Opts = getDriverOptTable(); 3571 const unsigned IncludedFlagsBitmask = options::CC1Option; 3572 unsigned MissingArgIndex, MissingArgCount; 3573 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3574 MissingArgCount, IncludedFlagsBitmask); 3575 LangOptions &LangOpts = *Res.getLangOpts(); 3576 3577 // Check for missing argument error. 3578 if (MissingArgCount) { 3579 Diags.Report(diag::err_drv_missing_argument) 3580 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3581 Success = false; 3582 } 3583 3584 // Issue errors on unknown arguments. 3585 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3586 auto ArgString = A->getAsString(Args); 3587 std::string Nearest; 3588 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3589 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3590 else 3591 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3592 << ArgString << Nearest; 3593 Success = false; 3594 } 3595 3596 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3597 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3598 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3599 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3600 Res.getDependencyOutputOpts().Targets.empty()) { 3601 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3602 Success = false; 3603 } 3604 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3605 /*DefaultDiagColor=*/false); 3606 ParseCommentArgs(LangOpts.CommentOpts, Args); 3607 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3608 // FIXME: We shouldn't have to pass the DashX option around here 3609 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3610 LangOpts.IsHeaderFile); 3611 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3612 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3613 Res.getTargetOpts(), Res.getFrontendOpts()); 3614 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3615 Res.getFileSystemOpts().WorkingDir); 3616 llvm::Triple T(Res.getTargetOpts().Triple); 3617 if (DashX.getFormat() == InputKind::Precompiled || 3618 DashX.getLanguage() == Language::LLVM_IR) { 3619 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3620 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3621 // what the input type is. 3622 if (Args.hasArg(OPT_fobjc_arc)) 3623 LangOpts.ObjCAutoRefCount = 1; 3624 // PIClevel and PIELevel are needed during code generation and this should be 3625 // set regardless of the input type. 3626 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3627 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3628 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3629 Diags, LangOpts.Sanitize); 3630 } else { 3631 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3632 // FIXME: Should we really be calling this for an Language::Asm input? 3633 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3634 Res.getPreprocessorOpts(), Diags); 3635 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3636 LangOpts.ObjCExceptions = 1; 3637 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3638 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3639 // preprocessed input as we don't expect it to be used with -std=libc++ 3640 // anyway. 3641 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3642 } 3643 } 3644 3645 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3646 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3647 3648 LangOpts.FunctionAlignment = 3649 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3650 3651 if (LangOpts.CUDA) { 3652 // During CUDA device-side compilation, the aux triple is the 3653 // triple used for host compilation. 3654 if (LangOpts.CUDAIsDevice) 3655 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3656 } 3657 3658 // Set the triple of the host for OpenMP device compile. 3659 if (LangOpts.OpenMPIsDevice) 3660 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3661 3662 // FIXME: Override value name discarding when asan or msan is used because the 3663 // backend passes depend on the name of the alloca in order to print out 3664 // names. 3665 Res.getCodeGenOpts().DiscardValueNames &= 3666 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3667 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3668 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3669 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3670 3671 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3672 Res.getFrontendOpts().ProgramAction); 3673 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3674 Res.getFrontendOpts().ProgramAction); 3675 3676 // Turn on -Wspir-compat for SPIR target. 3677 if (T.isSPIR()) 3678 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3679 3680 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3681 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3682 !Res.getLangOpts()->Sanitize.empty()) { 3683 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3684 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3685 } 3686 return Success; 3687 } 3688 3689 std::string CompilerInvocation::getModuleHash() const { 3690 // Note: For QoI reasons, the things we use as a hash here should all be 3691 // dumped via the -module-info flag. 3692 using llvm::hash_code; 3693 using llvm::hash_value; 3694 using llvm::hash_combine; 3695 using llvm::hash_combine_range; 3696 3697 // Start the signature with the compiler version. 3698 // FIXME: We'd rather use something more cryptographically sound than 3699 // CityHash, but this will do for now. 3700 hash_code code = hash_value(getClangFullRepositoryVersion()); 3701 3702 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3703 // and getClangFullRepositoryVersion() doesn't include git revision. 3704 code = hash_combine(code, serialization::VERSION_MAJOR, 3705 serialization::VERSION_MINOR); 3706 3707 // Extend the signature with the language options 3708 #define LANGOPT(Name, Bits, Default, Description) \ 3709 code = hash_combine(code, LangOpts->Name); 3710 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3711 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3712 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3713 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3714 #include "clang/Basic/LangOptions.def" 3715 3716 for (StringRef Feature : LangOpts->ModuleFeatures) 3717 code = hash_combine(code, Feature); 3718 3719 // Extend the signature with the target options. 3720 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3721 TargetOpts->ABI); 3722 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3723 code = hash_combine(code, FeatureAsWritten); 3724 3725 // Extend the signature with preprocessor options. 3726 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3727 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3728 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3729 3730 for (const auto &I : getPreprocessorOpts().Macros) { 3731 // If we're supposed to ignore this macro for the purposes of modules, 3732 // don't put it into the hash. 3733 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3734 // Check whether we're ignoring this macro. 3735 StringRef MacroDef = I.first; 3736 if (hsOpts.ModulesIgnoreMacros.count( 3737 llvm::CachedHashString(MacroDef.split('=').first))) 3738 continue; 3739 } 3740 3741 code = hash_combine(code, I.first, I.second); 3742 } 3743 3744 // Extend the signature with the sysroot and other header search options. 3745 code = hash_combine(code, hsOpts.Sysroot, 3746 hsOpts.ModuleFormat, 3747 hsOpts.UseDebugInfo, 3748 hsOpts.UseBuiltinIncludes, 3749 hsOpts.UseStandardSystemIncludes, 3750 hsOpts.UseStandardCXXIncludes, 3751 hsOpts.UseLibcxx, 3752 hsOpts.ModulesValidateDiagnosticOptions); 3753 code = hash_combine(code, hsOpts.ResourceDir); 3754 3755 if (hsOpts.ModulesStrictContextHash) { 3756 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3757 hsOpts.SystemHeaderPrefixes.end()); 3758 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3759 hsOpts.UserEntries.end()); 3760 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3761 hsOpts.UserEntries.size(), UEC); 3762 3763 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3764 #define DIAGOPT(Name, Bits, Default) \ 3765 code = hash_combine(code, diagOpts.Name); 3766 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3767 code = hash_combine(code, diagOpts.get##Name()); 3768 #include "clang/Basic/DiagnosticOptions.def" 3769 #undef DIAGOPT 3770 #undef ENUM_DIAGOPT 3771 } 3772 3773 // Extend the signature with the user build path. 3774 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3775 3776 // Extend the signature with the module file extensions. 3777 const FrontendOptions &frontendOpts = getFrontendOpts(); 3778 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3779 code = ext->hashExtension(code); 3780 } 3781 3782 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3783 // affects the debug info in the PCM. 3784 if (getCodeGenOpts().DebugTypeExtRefs) 3785 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3786 code = hash_combine(code, KeyValue.first, KeyValue.second); 3787 3788 // Extend the signature with the enabled sanitizers, if at least one is 3789 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3790 SanitizerSet SanHash = LangOpts->Sanitize; 3791 SanHash.clear(getPPTransparentSanitizers()); 3792 if (!SanHash.empty()) 3793 code = hash_combine(code, SanHash.Mask); 3794 3795 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3796 } 3797 3798 namespace clang { 3799 3800 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3801 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3802 DiagnosticsEngine &Diags) { 3803 return createVFSFromCompilerInvocation(CI, Diags, 3804 llvm::vfs::getRealFileSystem()); 3805 } 3806 3807 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3808 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3809 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3810 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3811 return BaseFS; 3812 3813 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3814 // earlier vfs files are on the bottom 3815 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3816 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3817 Result->getBufferForFile(File); 3818 if (!Buffer) { 3819 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3820 continue; 3821 } 3822 3823 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3824 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3825 /*DiagContext*/ nullptr, Result); 3826 if (!FS) { 3827 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3828 continue; 3829 } 3830 3831 Result = FS; 3832 } 3833 return Result; 3834 } 3835 3836 } // namespace clang 3837