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/Hashing.h" 51 #include "llvm/ADT/None.h" 52 #include "llvm/ADT/Optional.h" 53 #include "llvm/ADT/SmallString.h" 54 #include "llvm/ADT/SmallVector.h" 55 #include "llvm/ADT/StringRef.h" 56 #include "llvm/ADT/StringSwitch.h" 57 #include "llvm/ADT/Triple.h" 58 #include "llvm/ADT/Twine.h" 59 #include "llvm/IR/DebugInfoMetadata.h" 60 #include "llvm/Linker/Linker.h" 61 #include "llvm/MC/MCTargetOptions.h" 62 #include "llvm/Option/Arg.h" 63 #include "llvm/Option/ArgList.h" 64 #include "llvm/Option/OptSpecifier.h" 65 #include "llvm/Option/OptTable.h" 66 #include "llvm/Option/Option.h" 67 #include "llvm/ProfileData/InstrProfReader.h" 68 #include "llvm/Support/CodeGen.h" 69 #include "llvm/Support/Compiler.h" 70 #include "llvm/Support/Error.h" 71 #include "llvm/Support/ErrorHandling.h" 72 #include "llvm/Support/ErrorOr.h" 73 #include "llvm/Support/FileSystem.h" 74 #include "llvm/Support/Host.h" 75 #include "llvm/Support/MathExtras.h" 76 #include "llvm/Support/MemoryBuffer.h" 77 #include "llvm/Support/Path.h" 78 #include "llvm/Support/Process.h" 79 #include "llvm/Support/Regex.h" 80 #include "llvm/Support/VersionTuple.h" 81 #include "llvm/Support/VirtualFileSystem.h" 82 #include "llvm/Support/raw_ostream.h" 83 #include "llvm/Target/TargetOptions.h" 84 #include <algorithm> 85 #include <atomic> 86 #include <cassert> 87 #include <cstddef> 88 #include <cstring> 89 #include <memory> 90 #include <string> 91 #include <tuple> 92 #include <utility> 93 #include <vector> 94 95 using namespace clang; 96 using namespace driver; 97 using namespace options; 98 using namespace llvm::opt; 99 100 //===----------------------------------------------------------------------===// 101 // Initialization. 102 //===----------------------------------------------------------------------===// 103 104 CompilerInvocationBase::CompilerInvocationBase() 105 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 106 DiagnosticOpts(new DiagnosticOptions()), 107 HeaderSearchOpts(new HeaderSearchOptions()), 108 PreprocessorOpts(new PreprocessorOptions()) {} 109 110 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 111 : LangOpts(new LangOptions(*X.getLangOpts())), 112 TargetOpts(new TargetOptions(X.getTargetOpts())), 113 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 114 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 115 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 116 117 CompilerInvocationBase::~CompilerInvocationBase() = default; 118 119 //===----------------------------------------------------------------------===// 120 // Deserialization (from args) 121 //===----------------------------------------------------------------------===// 122 123 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 124 DiagnosticsEngine &Diags) { 125 unsigned DefaultOpt = llvm::CodeGenOpt::None; 126 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 127 DefaultOpt = llvm::CodeGenOpt::Default; 128 129 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 130 if (A->getOption().matches(options::OPT_O0)) 131 return llvm::CodeGenOpt::None; 132 133 if (A->getOption().matches(options::OPT_Ofast)) 134 return llvm::CodeGenOpt::Aggressive; 135 136 assert(A->getOption().matches(options::OPT_O)); 137 138 StringRef S(A->getValue()); 139 if (S == "s" || S == "z" || S.empty()) 140 return llvm::CodeGenOpt::Default; 141 142 if (S == "g") 143 return llvm::CodeGenOpt::Less; 144 145 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 146 } 147 148 return DefaultOpt; 149 } 150 151 static unsigned getOptimizationLevelSize(ArgList &Args) { 152 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 153 if (A->getOption().matches(options::OPT_O)) { 154 switch (A->getValue()[0]) { 155 default: 156 return 0; 157 case 's': 158 return 1; 159 case 'z': 160 return 2; 161 } 162 } 163 } 164 return 0; 165 } 166 167 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 168 OptSpecifier GroupWithValue, 169 std::vector<std::string> &Diagnostics) { 170 for (auto *A : Args.filtered(Group)) { 171 if (A->getOption().getKind() == Option::FlagClass) { 172 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 173 // its name (minus the "W" or "R" at the beginning) to the warning list. 174 Diagnostics.push_back( 175 std::string(A->getOption().getName().drop_front(1))); 176 } else if (A->getOption().matches(GroupWithValue)) { 177 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 178 Diagnostics.push_back( 179 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 180 } else { 181 // Otherwise, add its value (for OPT_W_Joined and similar). 182 for (const auto *Arg : A->getValues()) 183 Diagnostics.emplace_back(Arg); 184 } 185 } 186 } 187 188 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 189 // it won't verify the input. 190 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 191 DiagnosticsEngine *Diags); 192 193 static void getAllNoBuiltinFuncValues(ArgList &Args, 194 std::vector<std::string> &Funcs) { 195 SmallVector<const char *, 8> Values; 196 for (const auto &Arg : Args) { 197 const Option &O = Arg->getOption(); 198 if (O.matches(options::OPT_fno_builtin_)) { 199 const char *FuncName = Arg->getValue(); 200 if (Builtin::Context::isBuiltinFunc(FuncName)) 201 Values.push_back(FuncName); 202 } 203 } 204 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 205 } 206 207 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 208 DiagnosticsEngine &Diags) { 209 bool Success = true; 210 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 211 StringRef Name = A->getValue(); 212 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 213 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 214 .Case(CMDFLAG, NAME##Model) 215 #include "clang/StaticAnalyzer/Core/Analyses.def" 216 .Default(NumStores); 217 if (Value == NumStores) { 218 Diags.Report(diag::err_drv_invalid_value) 219 << A->getAsString(Args) << Name; 220 Success = false; 221 } else { 222 Opts.AnalysisStoreOpt = Value; 223 } 224 } 225 226 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 227 StringRef Name = A->getValue(); 228 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 229 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 230 .Case(CMDFLAG, NAME##Model) 231 #include "clang/StaticAnalyzer/Core/Analyses.def" 232 .Default(NumConstraints); 233 if (Value == NumConstraints) { 234 Diags.Report(diag::err_drv_invalid_value) 235 << A->getAsString(Args) << Name; 236 Success = false; 237 } else { 238 Opts.AnalysisConstraintsOpt = Value; 239 } 240 } 241 242 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 243 StringRef Name = A->getValue(); 244 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 245 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 246 .Case(CMDFLAG, PD_##NAME) 247 #include "clang/StaticAnalyzer/Core/Analyses.def" 248 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 249 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 250 Diags.Report(diag::err_drv_invalid_value) 251 << A->getAsString(Args) << Name; 252 Success = false; 253 } else { 254 Opts.AnalysisDiagOpt = Value; 255 } 256 } 257 258 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 259 StringRef Name = A->getValue(); 260 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 261 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 262 .Case(CMDFLAG, NAME) 263 #include "clang/StaticAnalyzer/Core/Analyses.def" 264 .Default(NumPurgeModes); 265 if (Value == NumPurgeModes) { 266 Diags.Report(diag::err_drv_invalid_value) 267 << A->getAsString(Args) << Name; 268 Success = false; 269 } else { 270 Opts.AnalysisPurgeOpt = Value; 271 } 272 } 273 274 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 275 StringRef Name = A->getValue(); 276 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 277 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 278 .Case(CMDFLAG, NAME) 279 #include "clang/StaticAnalyzer/Core/Analyses.def" 280 .Default(NumInliningModes); 281 if (Value == NumInliningModes) { 282 Diags.Report(diag::err_drv_invalid_value) 283 << A->getAsString(Args) << Name; 284 Success = false; 285 } else { 286 Opts.InliningMode = Value; 287 } 288 } 289 290 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 291 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 292 Opts.ShowCheckerHelpDeveloper = 293 Args.hasArg(OPT_analyzer_checker_help_developer); 294 295 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 296 Opts.ShowCheckerOptionAlphaList = 297 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 298 Opts.ShowCheckerOptionDeveloperList = 299 Args.hasArg(OPT_analyzer_checker_option_help_developer); 300 301 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 302 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 303 Opts.ShouldEmitErrorsOnInvalidConfigValue = 304 /* negated */!llvm::StringSwitch<bool>( 305 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 306 .Case("true", true) 307 .Case("false", false) 308 .Default(false); 309 Opts.DisableAllCheckers = Args.hasArg(OPT_analyzer_disable_all_checks); 310 311 Opts.visualizeExplodedGraphWithGraphViz = 312 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 313 Opts.DumpExplodedGraphTo = 314 std::string(Args.getLastArgValue(OPT_analyzer_dump_egraph)); 315 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 316 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 317 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 318 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 319 Opts.AnalyzeNestedBlocks = 320 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 321 Opts.AnalyzeSpecificFunction = 322 std::string(Args.getLastArgValue(OPT_analyze_function)); 323 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 324 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 325 Opts.maxBlockVisitOnPath = 326 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 327 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 328 Opts.InlineMaxStackDepth = 329 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 330 Opts.InlineMaxStackDepth, Diags); 331 332 Opts.CheckersAndPackages.clear(); 333 for (const Arg *A : 334 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 335 A->claim(); 336 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 337 // We can have a list of comma separated checker names, e.g: 338 // '-analyzer-checker=cocoa,unix' 339 StringRef CheckerAndPackageList = A->getValue(); 340 SmallVector<StringRef, 16> CheckersAndPackages; 341 CheckerAndPackageList.split(CheckersAndPackages, ","); 342 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 343 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 344 IsEnabled); 345 } 346 347 // Go through the analyzer configuration options. 348 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 349 350 // We can have a list of comma separated config names, e.g: 351 // '-analyzer-config key1=val1,key2=val2' 352 StringRef configList = A->getValue(); 353 SmallVector<StringRef, 4> configVals; 354 configList.split(configVals, ","); 355 for (const auto &configVal : configVals) { 356 StringRef key, val; 357 std::tie(key, val) = configVal.split("="); 358 if (val.empty()) { 359 Diags.Report(SourceLocation(), 360 diag::err_analyzer_config_no_value) << configVal; 361 Success = false; 362 break; 363 } 364 if (val.find('=') != StringRef::npos) { 365 Diags.Report(SourceLocation(), 366 diag::err_analyzer_config_multiple_values) 367 << configVal; 368 Success = false; 369 break; 370 } 371 372 // TODO: Check checker options too, possibly in CheckerRegistry. 373 // Leave unknown non-checker configs unclaimed. 374 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 375 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 376 Diags.Report(diag::err_analyzer_config_unknown) << key; 377 continue; 378 } 379 380 A->claim(); 381 Opts.Config[key] = std::string(val); 382 } 383 } 384 385 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 386 parseAnalyzerConfigs(Opts, &Diags); 387 else 388 parseAnalyzerConfigs(Opts, nullptr); 389 390 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 391 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 392 if (i != 0) 393 os << " "; 394 os << Args.getArgString(i); 395 } 396 os.flush(); 397 398 return Success; 399 } 400 401 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 402 StringRef OptionName, StringRef DefaultVal) { 403 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 404 } 405 406 static void initOption(AnalyzerOptions::ConfigTable &Config, 407 DiagnosticsEngine *Diags, 408 StringRef &OptionField, StringRef Name, 409 StringRef DefaultVal) { 410 // String options may be known to invalid (e.g. if the expected string is a 411 // file name, but the file does not exist), those will have to be checked in 412 // parseConfigs. 413 OptionField = getStringOption(Config, Name, DefaultVal); 414 } 415 416 static void initOption(AnalyzerOptions::ConfigTable &Config, 417 DiagnosticsEngine *Diags, 418 bool &OptionField, StringRef Name, bool DefaultVal) { 419 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 420 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 421 .Case("true", true) 422 .Case("false", false) 423 .Default(None); 424 425 if (!PossiblyInvalidVal) { 426 if (Diags) 427 Diags->Report(diag::err_analyzer_config_invalid_input) 428 << Name << "a boolean"; 429 else 430 OptionField = DefaultVal; 431 } else 432 OptionField = PossiblyInvalidVal.getValue(); 433 } 434 435 static void initOption(AnalyzerOptions::ConfigTable &Config, 436 DiagnosticsEngine *Diags, 437 unsigned &OptionField, StringRef Name, 438 unsigned DefaultVal) { 439 440 OptionField = DefaultVal; 441 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 442 .getAsInteger(0, OptionField); 443 if (Diags && HasFailed) 444 Diags->Report(diag::err_analyzer_config_invalid_input) 445 << Name << "an unsigned"; 446 } 447 448 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 449 DiagnosticsEngine *Diags) { 450 // TODO: There's no need to store the entire configtable, it'd be plenty 451 // enough tostore checker options. 452 453 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 454 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 455 456 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 457 SHALLOW_VAL, DEEP_VAL) \ 458 switch (AnOpts.getUserMode()) { \ 459 case UMK_Shallow: \ 460 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 461 break; \ 462 case UMK_Deep: \ 463 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 464 break; \ 465 } \ 466 467 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 468 #undef ANALYZER_OPTION 469 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 470 471 // At this point, AnalyzerOptions is configured. Let's validate some options. 472 473 // FIXME: Here we try to validate the silenced checkers or packages are valid. 474 // The current approach only validates the registered checkers which does not 475 // contain the runtime enabled checkers and optimally we would validate both. 476 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 477 std::vector<StringRef> Checkers = 478 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 479 std::vector<StringRef> Packages = 480 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 481 482 SmallVector<StringRef, 16> CheckersAndPackages; 483 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 484 485 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 486 if (Diags) { 487 bool IsChecker = CheckerOrPackage.contains('.'); 488 bool IsValidName = 489 IsChecker 490 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 491 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 492 493 if (!IsValidName) 494 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 495 << CheckerOrPackage; 496 } 497 498 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 499 } 500 } 501 502 if (!Diags) 503 return; 504 505 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 506 Diags->Report(diag::err_analyzer_config_invalid_input) 507 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 508 509 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 510 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 511 << "a filename"; 512 513 if (!AnOpts.ModelPath.empty() && 514 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 515 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 516 << "a filename"; 517 } 518 519 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 520 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 521 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 522 return true; 523 } 524 525 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 526 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 527 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 528 } 529 530 static llvm::Reloc::Model getRelocModel(ArgList &Args, 531 DiagnosticsEngine &Diags) { 532 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 533 StringRef Value = A->getValue(); 534 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 535 .Case("static", llvm::Reloc::Static) 536 .Case("pic", llvm::Reloc::PIC_) 537 .Case("ropi", llvm::Reloc::ROPI) 538 .Case("rwpi", llvm::Reloc::RWPI) 539 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 540 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 541 .Default(None); 542 if (RM.hasValue()) 543 return *RM; 544 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 545 } 546 return llvm::Reloc::PIC_; 547 } 548 549 /// Create a new Regex instance out of the string value in \p RpassArg. 550 /// It returns a pointer to the newly generated Regex instance. 551 static std::shared_ptr<llvm::Regex> 552 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 553 Arg *RpassArg) { 554 StringRef Val = RpassArg->getValue(); 555 std::string RegexError; 556 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 557 if (!Pattern->isValid(RegexError)) { 558 Diags.Report(diag::err_drv_optimization_remark_pattern) 559 << RegexError << RpassArg->getAsString(Args); 560 Pattern.reset(); 561 } 562 return Pattern; 563 } 564 565 static bool parseDiagnosticLevelMask(StringRef FlagName, 566 const std::vector<std::string> &Levels, 567 DiagnosticsEngine *Diags, 568 DiagnosticLevelMask &M) { 569 bool Success = true; 570 for (const auto &Level : Levels) { 571 DiagnosticLevelMask const PM = 572 llvm::StringSwitch<DiagnosticLevelMask>(Level) 573 .Case("note", DiagnosticLevelMask::Note) 574 .Case("remark", DiagnosticLevelMask::Remark) 575 .Case("warning", DiagnosticLevelMask::Warning) 576 .Case("error", DiagnosticLevelMask::Error) 577 .Default(DiagnosticLevelMask::None); 578 if (PM == DiagnosticLevelMask::None) { 579 Success = false; 580 if (Diags) 581 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 582 } 583 M = M | PM; 584 } 585 return Success; 586 } 587 588 static void parseSanitizerKinds(StringRef FlagName, 589 const std::vector<std::string> &Sanitizers, 590 DiagnosticsEngine &Diags, SanitizerSet &S) { 591 for (const auto &Sanitizer : Sanitizers) { 592 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 593 if (K == SanitizerMask()) 594 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 595 else 596 S.set(K, true); 597 } 598 } 599 600 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 601 ArgList &Args, DiagnosticsEngine &D, 602 XRayInstrSet &S) { 603 llvm::SmallVector<StringRef, 2> BundleParts; 604 llvm::SplitString(Bundle, BundleParts, ","); 605 for (const auto &B : BundleParts) { 606 auto Mask = parseXRayInstrValue(B); 607 if (Mask == XRayInstrKind::None) 608 if (B != "none") 609 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 610 else 611 S.Mask = Mask; 612 else if (Mask == XRayInstrKind::All) 613 S.Mask = Mask; 614 else 615 S.set(Mask, true); 616 } 617 } 618 619 // Set the profile kind for fprofile-instrument. 620 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 621 DiagnosticsEngine &Diags) { 622 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 623 if (A == nullptr) 624 return; 625 StringRef S = A->getValue(); 626 unsigned I = llvm::StringSwitch<unsigned>(S) 627 .Case("none", CodeGenOptions::ProfileNone) 628 .Case("clang", CodeGenOptions::ProfileClangInstr) 629 .Case("llvm", CodeGenOptions::ProfileIRInstr) 630 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 631 .Default(~0U); 632 if (I == ~0U) { 633 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 634 << S; 635 return; 636 } 637 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 638 Opts.setProfileInstr(Instrumentor); 639 } 640 641 // Set the profile kind using fprofile-instrument-use-path. 642 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 643 const Twine &ProfileName) { 644 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 645 // In error, return silently and let Clang PGOUse report the error message. 646 if (auto E = ReaderOrErr.takeError()) { 647 llvm::consumeError(std::move(E)); 648 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 649 return; 650 } 651 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 652 std::move(ReaderOrErr.get()); 653 if (PGOReader->isIRLevelProfile()) { 654 if (PGOReader->hasCSIRLevelProfile()) 655 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 656 else 657 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 658 } else 659 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 660 } 661 662 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 663 DiagnosticsEngine &Diags, 664 const TargetOptions &TargetOpts, 665 const FrontendOptions &FrontendOpts) { 666 bool Success = true; 667 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 668 669 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 670 // TODO: This could be done in Driver 671 unsigned MaxOptLevel = 3; 672 if (OptimizationLevel > MaxOptLevel) { 673 // If the optimization level is not supported, fall back on the default 674 // optimization 675 Diags.Report(diag::warn_drv_optimization_value) 676 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 677 OptimizationLevel = MaxOptLevel; 678 } 679 Opts.OptimizationLevel = OptimizationLevel; 680 681 // At O0 we want to fully disable inlining outside of cases marked with 682 // 'alwaysinline' that are required for correctness. 683 Opts.setInlining((Opts.OptimizationLevel == 0) 684 ? CodeGenOptions::OnlyAlwaysInlining 685 : CodeGenOptions::NormalInlining); 686 // Explicit inlining flags can disable some or all inlining even at 687 // optimization levels above zero. 688 if (Arg *InlineArg = Args.getLastArg( 689 options::OPT_finline_functions, options::OPT_finline_hint_functions, 690 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 691 if (Opts.OptimizationLevel > 0) { 692 const Option &InlineOpt = InlineArg->getOption(); 693 if (InlineOpt.matches(options::OPT_finline_functions)) 694 Opts.setInlining(CodeGenOptions::NormalInlining); 695 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 696 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 697 else 698 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 699 } 700 } 701 702 Opts.ExperimentalNewPassManager = Args.hasFlag( 703 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 704 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 705 706 Opts.DebugPassManager = 707 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 708 /* Default */ false); 709 710 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 711 StringRef Name = A->getValue(); 712 if (Name == "Accelerate") 713 Opts.setVecLib(CodeGenOptions::Accelerate); 714 else if (Name == "MASSV") 715 Opts.setVecLib(CodeGenOptions::MASSV); 716 else if (Name == "SVML") 717 Opts.setVecLib(CodeGenOptions::SVML); 718 else if (Name == "none") 719 Opts.setVecLib(CodeGenOptions::NoLibrary); 720 else 721 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 722 } 723 724 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 725 unsigned Val = 726 llvm::StringSwitch<unsigned>(A->getValue()) 727 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 728 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 729 .Case("constructor", codegenoptions::DebugInfoConstructor) 730 .Case("limited", codegenoptions::LimitedDebugInfo) 731 .Case("standalone", codegenoptions::FullDebugInfo) 732 .Default(~0U); 733 if (Val == ~0U) 734 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 735 << A->getValue(); 736 else 737 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 738 } 739 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 740 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 741 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 742 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 743 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 744 .Default(~0U); 745 if (Val == ~0U) 746 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 747 << A->getValue(); 748 else 749 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 750 } 751 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 752 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 753 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 754 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 755 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 756 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 757 Opts.VirtualFunctionElimination = 758 Args.hasArg(OPT_fvirtual_function_elimination); 759 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 760 Opts.SplitDwarfFile = std::string(Args.getLastArgValue(OPT_split_dwarf_file)); 761 Opts.SplitDwarfOutput = 762 std::string(Args.getLastArgValue(OPT_split_dwarf_output)); 763 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 764 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 765 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 766 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 767 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 768 769 Opts.ForceDwarfFrameSection = 770 Args.hasFlag(OPT_fforce_dwarf_frame, OPT_fno_force_dwarf_frame, false); 771 772 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 773 auto Split = StringRef(Arg).split('='); 774 Opts.DebugPrefixMap.insert( 775 {std::string(Split.first), std::string(Split.second)}); 776 } 777 778 if (const Arg *A = 779 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 780 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 781 782 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 783 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 784 785 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 786 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 787 llvm::Triple::arm, llvm::Triple::armeb}; 788 789 llvm::Triple T(TargetOpts.Triple); 790 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 791 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 792 Opts.EmitCallSiteInfo = true; 793 794 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 795 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 796 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 797 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 798 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 799 OPT_fuse_register_sized_bitfield_access); 800 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 801 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 802 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 803 Args.hasArg(OPT_new_struct_path_tbaa); 804 Opts.FineGrainedBitfieldAccesses = 805 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 806 OPT_fno_fine_grained_bitfield_accesses, false); 807 Opts.DwarfDebugFlags = 808 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 809 Opts.RecordCommandLine = 810 std::string(Args.getLastArgValue(OPT_record_command_line)); 811 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 812 Opts.NoCommon = !Args.hasArg(OPT_fcommon); 813 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables); 814 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 815 Opts.OptimizeSize = getOptimizationLevelSize(Args); 816 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 817 Args.hasArg(OPT_ffreestanding)); 818 if (Opts.SimplifyLibCalls) 819 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 820 Opts.UnrollLoops = 821 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 822 (Opts.OptimizationLevel > 1)); 823 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 824 825 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 826 Opts.CallGraphProfile = !Opts.DisableIntegratedAS; 827 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 828 Opts.SampleProfileFile = 829 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 830 Opts.DebugInfoForProfiling = Args.hasFlag( 831 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 832 Opts.DebugNameTable = static_cast<unsigned>( 833 Args.hasArg(OPT_ggnu_pubnames) 834 ? llvm::DICompileUnit::DebugNameTableKind::GNU 835 : Args.hasArg(OPT_gpubnames) 836 ? llvm::DICompileUnit::DebugNameTableKind::Default 837 : llvm::DICompileUnit::DebugNameTableKind::None); 838 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 839 840 setPGOInstrumentor(Opts, Args, Diags); 841 Opts.InstrProfileOutput = 842 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 843 Opts.ProfileInstrumentUsePath = 844 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 845 if (!Opts.ProfileInstrumentUsePath.empty()) 846 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 847 Opts.ProfileRemappingFile = 848 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 849 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 850 Diags.Report(diag::err_drv_argument_only_allowed_with) 851 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 852 << "-fexperimental-new-pass-manager"; 853 } 854 855 Opts.CoverageMapping = 856 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 857 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 858 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 859 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 860 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 861 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 862 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 863 Opts.RegisterGlobalDtorsWithAtExit = 864 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 865 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 866 Opts.CodeModel = TargetOpts.CodeModel; 867 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 868 869 // Handle -mframe-pointer option. 870 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 871 CodeGenOptions::FramePointerKind FP; 872 StringRef Name = A->getValue(); 873 bool ValidFP = true; 874 if (Name == "none") 875 FP = CodeGenOptions::FramePointerKind::None; 876 else if (Name == "non-leaf") 877 FP = CodeGenOptions::FramePointerKind::NonLeaf; 878 else if (Name == "all") 879 FP = CodeGenOptions::FramePointerKind::All; 880 else { 881 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 882 Success = false; 883 ValidFP = false; 884 } 885 if (ValidFP) 886 Opts.setFramePointer(FP); 887 } 888 889 Opts.DisableFree = Args.hasArg(OPT_disable_free); 890 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 891 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 892 Opts.NoEscapingBlockTailCalls = 893 Args.hasArg(OPT_fno_escaping_block_tail_calls); 894 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 895 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 896 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 897 Args.hasArg(OPT_cl_fast_relaxed_math); 898 Opts.LimitFloatPrecision = 899 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 900 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 901 Args.hasArg(OPT_cl_finite_math_only) || 902 Args.hasArg(OPT_cl_fast_relaxed_math)); 903 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 904 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 905 Args.hasArg(OPT_cl_finite_math_only) || 906 Args.hasArg(OPT_cl_fast_relaxed_math)); 907 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 908 Args.hasArg(OPT_cl_no_signed_zeros) || 909 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 910 Args.hasArg(OPT_cl_fast_relaxed_math)); 911 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 912 Opts.CorrectlyRoundedDivSqrt = 913 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 914 Opts.UniformWGSize = 915 Args.hasArg(OPT_cl_uniform_work_group_size); 916 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 917 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 918 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 919 Opts.StrictFloatCastOverflow = 920 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 921 922 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 923 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 924 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 925 Opts.SmallDataLimit = 926 getLastArgIntValue(Args, OPT_msmall_data_limit, 0, Diags); 927 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 928 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 929 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 930 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 931 Opts.IncrementalLinkerCompatible = 932 Args.hasArg(OPT_mincremental_linker_compatible); 933 Opts.PIECopyRelocations = 934 Args.hasArg(OPT_mpie_copy_relocations); 935 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 936 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 937 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 938 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 939 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 940 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 941 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 942 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 943 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 944 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 945 Args.hasArg(OPT_cl_fast_relaxed_math); 946 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 947 Opts.RelocationModel = getRelocModel(Args, Diags); 948 Opts.ThreadModel = 949 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 950 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 951 Diags.Report(diag::err_drv_invalid_value) 952 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 953 << Opts.ThreadModel; 954 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 955 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 956 957 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 958 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 959 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 960 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 961 962 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 963 964 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 965 966 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 967 968 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 969 970 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 971 Opts.PrepareForThinLTO = false; 972 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 973 StringRef S = A->getValue(); 974 if (S == "thin") 975 Opts.PrepareForThinLTO = true; 976 else if (S != "full") 977 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 978 } 979 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 980 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 981 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 982 if (IK.getLanguage() != Language::LLVM_IR) 983 Diags.Report(diag::err_drv_argument_only_allowed_with) 984 << A->getAsString(Args) << "-x ir"; 985 Opts.ThinLTOIndexFile = 986 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 987 } 988 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 989 Opts.SaveTempsFilePrefix = 990 llvm::StringSwitch<std::string>(A->getValue()) 991 .Case("obj", FrontendOpts.OutputFile) 992 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 993 994 Opts.ThinLinkBitcodeFile = 995 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 996 997 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 998 999 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 1000 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 1001 1002 Opts.PreferVectorWidth = 1003 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1004 1005 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1006 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1007 1008 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1009 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1010 1011 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 1012 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1013 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1014 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1015 Opts.CoverageDataFile = 1016 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1017 Opts.CoverageNotesFile = 1018 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1019 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 1020 Opts.CoverageNoFunctionNamesInData = 1021 Args.hasArg(OPT_coverage_no_function_names_in_data); 1022 Opts.ProfileFilterFiles = 1023 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1024 Opts.ProfileExcludeFiles = 1025 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1026 Opts.CoverageExitBlockBeforeBody = 1027 Args.hasArg(OPT_coverage_exit_block_before_body); 1028 if (Args.hasArg(OPT_coverage_version_EQ)) { 1029 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1030 if (CoverageVersion.size() != 4) { 1031 Diags.Report(diag::err_drv_invalid_value) 1032 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1033 << CoverageVersion; 1034 } else { 1035 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1036 } 1037 } 1038 } 1039 // Handle -fembed-bitcode option. 1040 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1041 StringRef Name = A->getValue(); 1042 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1043 .Case("off", CodeGenOptions::Embed_Off) 1044 .Case("all", CodeGenOptions::Embed_All) 1045 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1046 .Case("marker", CodeGenOptions::Embed_Marker) 1047 .Default(~0U); 1048 if (Model == ~0U) { 1049 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1050 Success = false; 1051 } else 1052 Opts.setEmbedBitcode( 1053 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1054 } 1055 // FIXME: For backend options that are not yet recorded as function 1056 // attributes in the IR, keep track of them so we can embed them in a 1057 // separate data section and use them when building the bitcode. 1058 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1059 for (const auto &A : Args) { 1060 // Do not encode output and input. 1061 if (A->getOption().getID() == options::OPT_o || 1062 A->getOption().getID() == options::OPT_INPUT || 1063 A->getOption().getID() == options::OPT_x || 1064 A->getOption().getID() == options::OPT_fembed_bitcode || 1065 (A->getOption().getGroup().isValid() && 1066 A->getOption().getGroup().getID() == options::OPT_W_Group)) 1067 continue; 1068 ArgStringList ASL; 1069 A->render(Args, ASL); 1070 for (const auto &arg : ASL) { 1071 StringRef ArgStr(arg); 1072 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1073 // using \00 to separate each commandline options. 1074 Opts.CmdArgs.push_back('\0'); 1075 } 1076 } 1077 } 1078 1079 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1080 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1081 Opts.InstrumentFunctionsAfterInlining = 1082 Args.hasArg(OPT_finstrument_functions_after_inlining); 1083 Opts.InstrumentFunctionEntryBare = 1084 Args.hasArg(OPT_finstrument_function_entry_bare); 1085 1086 Opts.XRayInstrumentFunctions = 1087 Args.hasArg(OPT_fxray_instrument); 1088 Opts.XRayAlwaysEmitCustomEvents = 1089 Args.hasArg(OPT_fxray_always_emit_customevents); 1090 Opts.XRayAlwaysEmitTypedEvents = 1091 Args.hasArg(OPT_fxray_always_emit_typedevents); 1092 Opts.XRayInstructionThreshold = 1093 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1094 Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops); 1095 1096 auto XRayInstrBundles = 1097 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1098 if (XRayInstrBundles.empty()) 1099 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1100 else 1101 for (const auto &A : XRayInstrBundles) 1102 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1103 Diags, Opts.XRayInstrumentationBundle); 1104 1105 Opts.PatchableFunctionEntryCount = 1106 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1107 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1108 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1109 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1110 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1111 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1112 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1113 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1114 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1115 1116 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1117 StringRef Name = A->getValue(); 1118 if (Name == "full") { 1119 Opts.CFProtectionReturn = 1; 1120 Opts.CFProtectionBranch = 1; 1121 } else if (Name == "return") 1122 Opts.CFProtectionReturn = 1; 1123 else if (Name == "branch") 1124 Opts.CFProtectionBranch = 1; 1125 else if (Name != "none") { 1126 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1127 Success = false; 1128 } 1129 } 1130 1131 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1132 OPT_compress_debug_sections_EQ)) { 1133 if (A->getOption().getID() == OPT_compress_debug_sections) { 1134 // TODO: be more clever about the compression type auto-detection 1135 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1136 } else { 1137 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1138 .Case("none", llvm::DebugCompressionType::None) 1139 .Case("zlib", llvm::DebugCompressionType::Z) 1140 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1141 .Default(llvm::DebugCompressionType::None); 1142 Opts.setCompressDebugSections(DCT); 1143 } 1144 } 1145 1146 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1147 Opts.DebugCompilationDir = 1148 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1149 for (auto *A : 1150 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1151 CodeGenOptions::BitcodeFileToLink F; 1152 F.Filename = A->getValue(); 1153 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1154 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1155 // When linking CUDA bitcode, propagate function attributes so that 1156 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1157 F.PropagateAttrs = true; 1158 F.Internalize = true; 1159 } 1160 Opts.LinkBitcodeFiles.push_back(F); 1161 } 1162 Opts.SanitizeCoverageType = 1163 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1164 Opts.SanitizeCoverageIndirectCalls = 1165 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1166 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1167 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1168 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1169 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1170 Opts.SanitizeCoverage8bitCounters = 1171 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1172 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1173 Opts.SanitizeCoverageTracePCGuard = 1174 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1175 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1176 Opts.SanitizeCoverageInline8bitCounters = 1177 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1178 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1179 Opts.SanitizeCoverageStackDepth = 1180 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1181 Opts.SanitizeMemoryTrackOrigins = 1182 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1183 Opts.SanitizeMemoryUseAfterDtor = 1184 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1185 OPT_fno_sanitize_memory_use_after_dtor, 1186 false); 1187 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1188 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1189 Opts.SanitizeCfiICallGeneralizePointers = 1190 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1191 Opts.SanitizeCfiCanonicalJumpTables = 1192 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1193 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1194 if (Arg *A = Args.getLastArg( 1195 OPT_fsanitize_address_poison_custom_array_cookie, 1196 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1197 Opts.SanitizeAddressPoisonCustomArrayCookie = 1198 A->getOption().getID() == 1199 OPT_fsanitize_address_poison_custom_array_cookie; 1200 } 1201 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1202 OPT_fno_sanitize_address_use_after_scope)) { 1203 Opts.SanitizeAddressUseAfterScope = 1204 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1205 } 1206 Opts.SanitizeAddressGlobalsDeadStripping = 1207 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1208 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1209 OPT_fno_sanitize_address_use_odr_indicator)) { 1210 Opts.SanitizeAddressUseOdrIndicator = 1211 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1212 } 1213 Opts.SSPBufferSize = 1214 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1215 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1216 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1217 StringRef Val = A->getValue(); 1218 unsigned StackAlignment = Opts.StackAlignment; 1219 Val.getAsInteger(10, StackAlignment); 1220 Opts.StackAlignment = StackAlignment; 1221 } 1222 1223 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1224 StringRef Val = A->getValue(); 1225 unsigned StackProbeSize = Opts.StackProbeSize; 1226 Val.getAsInteger(0, StackProbeSize); 1227 Opts.StackProbeSize = StackProbeSize; 1228 } 1229 1230 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1231 1232 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1233 1234 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1235 StringRef Name = A->getValue(); 1236 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1237 .Case("legacy", CodeGenOptions::Legacy) 1238 .Case("non-legacy", CodeGenOptions::NonLegacy) 1239 .Case("mixed", CodeGenOptions::Mixed) 1240 .Default(~0U); 1241 if (Method == ~0U) { 1242 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1243 Success = false; 1244 } else { 1245 Opts.setObjCDispatchMethod( 1246 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1247 } 1248 } 1249 1250 1251 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1252 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1253 1254 if (Args.getLastArg(OPT_femulated_tls) || 1255 Args.getLastArg(OPT_fno_emulated_tls)) { 1256 Opts.ExplicitEmulatedTLS = true; 1257 Opts.EmulatedTLS = 1258 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1259 } 1260 1261 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1262 StringRef Name = A->getValue(); 1263 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1264 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1265 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1266 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1267 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1268 .Default(~0U); 1269 if (Model == ~0U) { 1270 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1271 Success = false; 1272 } else { 1273 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1274 } 1275 } 1276 1277 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1278 1279 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1280 StringRef Val = A->getValue(); 1281 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1282 if (!Opts.FPDenormalMode.isValid()) 1283 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1284 } 1285 1286 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1287 StringRef Val = A->getValue(); 1288 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1289 if (!Opts.FP32DenormalMode.isValid()) 1290 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1291 } 1292 1293 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1294 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1295 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1296 } else { 1297 assert(A->getOption().matches(OPT_freg_struct_return)); 1298 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1299 } 1300 } 1301 1302 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1303 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1304 bool NeedLocTracking = false; 1305 1306 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1307 if (!Opts.OptRecordFile.empty()) 1308 NeedLocTracking = true; 1309 1310 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1311 Opts.OptRecordPasses = A->getValue(); 1312 NeedLocTracking = true; 1313 } 1314 1315 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1316 Opts.OptRecordFormat = A->getValue(); 1317 NeedLocTracking = true; 1318 } 1319 1320 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1321 Opts.OptimizationRemarkPattern = 1322 GenerateOptimizationRemarkRegex(Diags, Args, A); 1323 NeedLocTracking = true; 1324 } 1325 1326 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1327 Opts.OptimizationRemarkMissedPattern = 1328 GenerateOptimizationRemarkRegex(Diags, Args, A); 1329 NeedLocTracking = true; 1330 } 1331 1332 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1333 Opts.OptimizationRemarkAnalysisPattern = 1334 GenerateOptimizationRemarkRegex(Diags, Args, A); 1335 NeedLocTracking = true; 1336 } 1337 1338 Opts.DiagnosticsWithHotness = 1339 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1340 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1341 bool UsingProfile = UsingSampleProfile || 1342 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1343 1344 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1345 // An IR file will contain PGO as metadata 1346 IK.getLanguage() != Language::LLVM_IR) 1347 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1348 << "-fdiagnostics-show-hotness"; 1349 1350 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1351 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1352 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1353 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1354 << "-fdiagnostics-hotness-threshold="; 1355 1356 // If the user requested to use a sample profile for PGO, then the 1357 // backend will need to track source location information so the profile 1358 // can be incorporated into the IR. 1359 if (UsingSampleProfile) 1360 NeedLocTracking = true; 1361 1362 // If the user requested a flag that requires source locations available in 1363 // the backend, make sure that the backend tracks source location information. 1364 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1365 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1366 1367 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1368 1369 // Parse -fsanitize-recover= arguments. 1370 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1371 parseSanitizerKinds("-fsanitize-recover=", 1372 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1373 Opts.SanitizeRecover); 1374 parseSanitizerKinds("-fsanitize-trap=", 1375 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1376 Opts.SanitizeTrap); 1377 1378 Opts.CudaGpuBinaryFileName = 1379 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1380 1381 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1382 1383 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1384 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1385 1386 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1387 1388 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1389 1390 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1391 StringRef SignScope = A->getValue(); 1392 1393 if (SignScope.equals_lower("none")) 1394 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1395 else if (SignScope.equals_lower("all")) 1396 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1397 else if (SignScope.equals_lower("non-leaf")) 1398 Opts.setSignReturnAddress( 1399 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1400 else 1401 Diags.Report(diag::err_drv_invalid_value) 1402 << A->getAsString(Args) << SignScope; 1403 1404 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1405 StringRef SignKey = A->getValue(); 1406 if (!SignScope.empty() && !SignKey.empty()) { 1407 if (SignKey.equals_lower("a_key")) 1408 Opts.setSignReturnAddressKey( 1409 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1410 else if (SignKey.equals_lower("b_key")) 1411 Opts.setSignReturnAddressKey( 1412 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1413 else 1414 Diags.Report(diag::err_drv_invalid_value) 1415 << A->getAsString(Args) << SignKey; 1416 } 1417 } 1418 } 1419 1420 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1421 1422 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1423 1424 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1425 1426 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1427 1428 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1429 1430 Opts.SymbolPartition = 1431 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1432 1433 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1434 return Success; 1435 } 1436 1437 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1438 ArgList &Args) { 1439 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1440 Opts.Targets = Args.getAllArgValues(OPT_MT); 1441 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1442 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1443 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1444 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1445 Opts.HeaderIncludeOutputFile = 1446 std::string(Args.getLastArgValue(OPT_header_include_file)); 1447 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1448 if (Args.hasArg(OPT_show_includes)) { 1449 // Writing both /showIncludes and preprocessor output to stdout 1450 // would produce interleaved output, so use stderr for /showIncludes. 1451 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1452 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1453 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1454 else 1455 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1456 } else { 1457 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1458 } 1459 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1460 Opts.ModuleDependencyOutputDir = 1461 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1462 if (Args.hasArg(OPT_MV)) 1463 Opts.OutputFormat = DependencyOutputFormat::NMake; 1464 // Add sanitizer blacklists as extra dependencies. 1465 // They won't be discovered by the regular preprocessor, so 1466 // we let make / ninja to know about this implicit dependency. 1467 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1468 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1469 StringRef Val = A->getValue(); 1470 if (Val.find('=') == StringRef::npos) 1471 Opts.ExtraDeps.push_back(std::string(Val)); 1472 } 1473 if (Opts.IncludeSystemHeaders) { 1474 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1475 StringRef Val = A->getValue(); 1476 if (Val.find('=') == StringRef::npos) 1477 Opts.ExtraDeps.push_back(std::string(Val)); 1478 } 1479 } 1480 } 1481 1482 // Propagate the extra dependencies. 1483 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1484 Opts.ExtraDeps.push_back(A->getValue()); 1485 } 1486 1487 // Only the -fmodule-file=<file> form. 1488 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1489 StringRef Val = A->getValue(); 1490 if (Val.find('=') == StringRef::npos) 1491 Opts.ExtraDeps.push_back(std::string(Val)); 1492 } 1493 } 1494 1495 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1496 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1497 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1498 // Support both clang's -f[no-]color-diagnostics and gcc's 1499 // -f[no-]diagnostics-colors[=never|always|auto]. 1500 enum { 1501 Colors_On, 1502 Colors_Off, 1503 Colors_Auto 1504 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1505 for (auto *A : Args) { 1506 const Option &O = A->getOption(); 1507 if (O.matches(options::OPT_fcolor_diagnostics) || 1508 O.matches(options::OPT_fdiagnostics_color)) { 1509 ShowColors = Colors_On; 1510 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1511 O.matches(options::OPT_fno_diagnostics_color)) { 1512 ShowColors = Colors_Off; 1513 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1514 StringRef Value(A->getValue()); 1515 if (Value == "always") 1516 ShowColors = Colors_On; 1517 else if (Value == "never") 1518 ShowColors = Colors_Off; 1519 else if (Value == "auto") 1520 ShowColors = Colors_Auto; 1521 } 1522 } 1523 return ShowColors == Colors_On || 1524 (ShowColors == Colors_Auto && 1525 llvm::sys::Process::StandardErrHasColors()); 1526 } 1527 1528 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1529 DiagnosticsEngine *Diags) { 1530 bool Success = true; 1531 for (const auto &Prefix : VerifyPrefixes) { 1532 // Every prefix must start with a letter and contain only alphanumeric 1533 // characters, hyphens, and underscores. 1534 auto BadChar = llvm::find_if(Prefix, [](char C) { 1535 return !isAlphanumeric(C) && C != '-' && C != '_'; 1536 }); 1537 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1538 Success = false; 1539 if (Diags) { 1540 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1541 Diags->Report(diag::note_drv_verify_prefix_spelling); 1542 } 1543 } 1544 } 1545 return Success; 1546 } 1547 1548 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1549 DiagnosticsEngine *Diags, 1550 bool DefaultDiagColor, bool DefaultShowOpt) { 1551 bool Success = true; 1552 1553 Opts.DiagnosticLogFile = 1554 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1555 if (Arg *A = 1556 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1557 Opts.DiagnosticSerializationFile = A->getValue(); 1558 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1559 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1560 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1561 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1562 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1563 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1564 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1565 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1566 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1567 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1568 Opts.ShowOptionNames = 1569 Args.hasFlag(OPT_fdiagnostics_show_option, 1570 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1571 1572 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1573 1574 // Default behavior is to not to show note include stacks. 1575 Opts.ShowNoteIncludeStack = false; 1576 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1577 OPT_fno_diagnostics_show_note_include_stack)) 1578 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1579 Opts.ShowNoteIncludeStack = true; 1580 1581 StringRef ShowOverloads = 1582 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1583 if (ShowOverloads == "best") 1584 Opts.setShowOverloads(Ovl_Best); 1585 else if (ShowOverloads == "all") 1586 Opts.setShowOverloads(Ovl_All); 1587 else { 1588 Success = false; 1589 if (Diags) 1590 Diags->Report(diag::err_drv_invalid_value) 1591 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1592 << ShowOverloads; 1593 } 1594 1595 StringRef ShowCategory = 1596 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1597 if (ShowCategory == "none") 1598 Opts.ShowCategories = 0; 1599 else if (ShowCategory == "id") 1600 Opts.ShowCategories = 1; 1601 else if (ShowCategory == "name") 1602 Opts.ShowCategories = 2; 1603 else { 1604 Success = false; 1605 if (Diags) 1606 Diags->Report(diag::err_drv_invalid_value) 1607 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1608 << ShowCategory; 1609 } 1610 1611 StringRef Format = 1612 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1613 if (Format == "clang") 1614 Opts.setFormat(DiagnosticOptions::Clang); 1615 else if (Format == "msvc") 1616 Opts.setFormat(DiagnosticOptions::MSVC); 1617 else if (Format == "msvc-fallback") { 1618 Opts.setFormat(DiagnosticOptions::MSVC); 1619 Opts.CLFallbackMode = true; 1620 } else if (Format == "vi") 1621 Opts.setFormat(DiagnosticOptions::Vi); 1622 else { 1623 Success = false; 1624 if (Diags) 1625 Diags->Report(diag::err_drv_invalid_value) 1626 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1627 << Format; 1628 } 1629 1630 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1631 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1632 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1633 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1634 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1635 if (Args.hasArg(OPT_verify)) 1636 Opts.VerifyPrefixes.push_back("expected"); 1637 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1638 // then sort it to prepare for fast lookup using std::binary_search. 1639 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1640 Opts.VerifyDiagnostics = false; 1641 Success = false; 1642 } 1643 else 1644 llvm::sort(Opts.VerifyPrefixes); 1645 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1646 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1647 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1648 Diags, DiagMask); 1649 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1650 DiagMask = DiagnosticLevelMask::All; 1651 Opts.setVerifyIgnoreUnexpected(DiagMask); 1652 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1653 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1654 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1655 Opts.MacroBacktraceLimit = 1656 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1657 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1658 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1659 Args, OPT_ftemplate_backtrace_limit, 1660 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1661 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1662 Args, OPT_fconstexpr_backtrace_limit, 1663 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1664 Opts.SpellCheckingLimit = getLastArgIntValue( 1665 Args, OPT_fspell_checking_limit, 1666 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1667 Opts.SnippetLineLimit = getLastArgIntValue( 1668 Args, OPT_fcaret_diagnostics_max_lines, 1669 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1670 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1671 DiagnosticOptions::DefaultTabStop, Diags); 1672 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1673 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1674 if (Diags) 1675 Diags->Report(diag::warn_ignoring_ftabstop_value) 1676 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1677 } 1678 Opts.MessageLength = 1679 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1680 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1681 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1682 1683 return Success; 1684 } 1685 1686 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1687 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1688 } 1689 1690 /// Parse the argument to the -ftest-module-file-extension 1691 /// command-line argument. 1692 /// 1693 /// \returns true on error, false on success. 1694 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1695 std::string &BlockName, 1696 unsigned &MajorVersion, 1697 unsigned &MinorVersion, 1698 bool &Hashed, 1699 std::string &UserInfo) { 1700 SmallVector<StringRef, 5> Args; 1701 Arg.split(Args, ':', 5); 1702 if (Args.size() < 5) 1703 return true; 1704 1705 BlockName = std::string(Args[0]); 1706 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1707 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1708 if (Args[3].getAsInteger(2, Hashed)) return true; 1709 if (Args.size() > 4) 1710 UserInfo = std::string(Args[4]); 1711 return false; 1712 } 1713 1714 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1715 DiagnosticsEngine &Diags, 1716 bool &IsHeaderFile) { 1717 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1718 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1719 switch (A->getOption().getID()) { 1720 default: 1721 llvm_unreachable("Invalid option in group!"); 1722 case OPT_ast_list: 1723 Opts.ProgramAction = frontend::ASTDeclList; break; 1724 case OPT_ast_dump_all_EQ: 1725 case OPT_ast_dump_EQ: { 1726 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1727 .CaseLower("default", ADOF_Default) 1728 .CaseLower("json", ADOF_JSON) 1729 .Default(std::numeric_limits<unsigned>::max()); 1730 1731 if (Val != std::numeric_limits<unsigned>::max()) 1732 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1733 else { 1734 Diags.Report(diag::err_drv_invalid_value) 1735 << A->getAsString(Args) << A->getValue(); 1736 Opts.ASTDumpFormat = ADOF_Default; 1737 } 1738 LLVM_FALLTHROUGH; 1739 } 1740 case OPT_ast_dump: 1741 case OPT_ast_dump_all: 1742 case OPT_ast_dump_lookups: 1743 Opts.ProgramAction = frontend::ASTDump; break; 1744 case OPT_ast_print: 1745 Opts.ProgramAction = frontend::ASTPrint; break; 1746 case OPT_ast_view: 1747 Opts.ProgramAction = frontend::ASTView; break; 1748 case OPT_compiler_options_dump: 1749 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1750 case OPT_dump_raw_tokens: 1751 Opts.ProgramAction = frontend::DumpRawTokens; break; 1752 case OPT_dump_tokens: 1753 Opts.ProgramAction = frontend::DumpTokens; break; 1754 case OPT_S: 1755 Opts.ProgramAction = frontend::EmitAssembly; break; 1756 case OPT_emit_llvm_bc: 1757 Opts.ProgramAction = frontend::EmitBC; break; 1758 case OPT_emit_html: 1759 Opts.ProgramAction = frontend::EmitHTML; break; 1760 case OPT_emit_llvm: 1761 Opts.ProgramAction = frontend::EmitLLVM; break; 1762 case OPT_emit_llvm_only: 1763 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1764 case OPT_emit_codegen_only: 1765 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1766 case OPT_emit_obj: 1767 Opts.ProgramAction = frontend::EmitObj; break; 1768 case OPT_fixit_EQ: 1769 Opts.FixItSuffix = A->getValue(); 1770 LLVM_FALLTHROUGH; 1771 case OPT_fixit: 1772 Opts.ProgramAction = frontend::FixIt; break; 1773 case OPT_emit_module: 1774 Opts.ProgramAction = frontend::GenerateModule; break; 1775 case OPT_emit_module_interface: 1776 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1777 case OPT_emit_header_module: 1778 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1779 case OPT_emit_pch: 1780 Opts.ProgramAction = frontend::GeneratePCH; break; 1781 case OPT_emit_interface_stubs: { 1782 StringRef ArgStr = 1783 Args.hasArg(OPT_interface_stub_version_EQ) 1784 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1785 : "experimental-ifs-v1"; 1786 if (ArgStr == "experimental-yaml-elf-v1" || 1787 ArgStr == "experimental-tapi-elf-v1") { 1788 std::string ErrorMessage = 1789 "Invalid interface stub format: " + ArgStr.str() + 1790 " is deprecated."; 1791 Diags.Report(diag::err_drv_invalid_value) 1792 << "Must specify a valid interface stub format type, ie: " 1793 "-interface-stub-version=experimental-ifs-v1" 1794 << ErrorMessage; 1795 } else if (ArgStr != "experimental-ifs-v1") { 1796 std::string ErrorMessage = 1797 "Invalid interface stub format: " + ArgStr.str() + "."; 1798 Diags.Report(diag::err_drv_invalid_value) 1799 << "Must specify a valid interface stub format type, ie: " 1800 "-interface-stub-version=experimental-ifs-v1" 1801 << ErrorMessage; 1802 } else { 1803 Opts.ProgramAction = frontend::GenerateInterfaceIfsExpV1; 1804 } 1805 break; 1806 } 1807 case OPT_init_only: 1808 Opts.ProgramAction = frontend::InitOnly; break; 1809 case OPT_fsyntax_only: 1810 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1811 case OPT_module_file_info: 1812 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1813 case OPT_verify_pch: 1814 Opts.ProgramAction = frontend::VerifyPCH; break; 1815 case OPT_print_preamble: 1816 Opts.ProgramAction = frontend::PrintPreamble; break; 1817 case OPT_E: 1818 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1819 case OPT_templight_dump: 1820 Opts.ProgramAction = frontend::TemplightDump; break; 1821 case OPT_rewrite_macros: 1822 Opts.ProgramAction = frontend::RewriteMacros; break; 1823 case OPT_rewrite_objc: 1824 Opts.ProgramAction = frontend::RewriteObjC; break; 1825 case OPT_rewrite_test: 1826 Opts.ProgramAction = frontend::RewriteTest; break; 1827 case OPT_analyze: 1828 Opts.ProgramAction = frontend::RunAnalysis; break; 1829 case OPT_migrate: 1830 Opts.ProgramAction = frontend::MigrateSource; break; 1831 case OPT_Eonly: 1832 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1833 case OPT_print_dependency_directives_minimized_source: 1834 Opts.ProgramAction = 1835 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1836 break; 1837 } 1838 } 1839 1840 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1841 Opts.Plugins.emplace_back(A->getValue(0)); 1842 Opts.ProgramAction = frontend::PluginAction; 1843 Opts.ActionName = A->getValue(); 1844 } 1845 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1846 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1847 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1848 1849 for (const std::string &Arg : 1850 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1851 std::string BlockName; 1852 unsigned MajorVersion; 1853 unsigned MinorVersion; 1854 bool Hashed; 1855 std::string UserInfo; 1856 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1857 MinorVersion, Hashed, UserInfo)) { 1858 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1859 1860 continue; 1861 } 1862 1863 // Add the testing module file extension. 1864 Opts.ModuleFileExtensions.push_back( 1865 std::make_shared<TestModuleFileExtension>( 1866 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1867 } 1868 1869 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1870 Opts.CodeCompletionAt = 1871 ParsedSourceLocation::FromString(A->getValue()); 1872 if (Opts.CodeCompletionAt.FileName.empty()) 1873 Diags.Report(diag::err_drv_invalid_value) 1874 << A->getAsString(Args) << A->getValue(); 1875 } 1876 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1877 1878 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1879 Opts.Plugins = Args.getAllArgValues(OPT_load); 1880 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1881 Opts.ShowHelp = Args.hasArg(OPT_help); 1882 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1883 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1884 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1885 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1886 Opts.TimeTraceGranularity = getLastArgIntValue( 1887 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1888 Opts.ShowVersion = Args.hasArg(OPT_version); 1889 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1890 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1891 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1892 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1893 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1894 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1895 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1896 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1897 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1898 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1899 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1900 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1901 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1902 // Only the -fmodule-file=<file> form. 1903 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1904 StringRef Val = A->getValue(); 1905 if (Val.find('=') == StringRef::npos) 1906 Opts.ModuleFiles.push_back(std::string(Val)); 1907 } 1908 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1909 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1910 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1911 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1912 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 1913 1914 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1915 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1916 << "-emit-module"; 1917 1918 Opts.CodeCompleteOpts.IncludeMacros 1919 = Args.hasArg(OPT_code_completion_macros); 1920 Opts.CodeCompleteOpts.IncludeCodePatterns 1921 = Args.hasArg(OPT_code_completion_patterns); 1922 Opts.CodeCompleteOpts.IncludeGlobals 1923 = !Args.hasArg(OPT_no_code_completion_globals); 1924 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1925 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1926 Opts.CodeCompleteOpts.IncludeBriefComments 1927 = Args.hasArg(OPT_code_completion_brief_comments); 1928 Opts.CodeCompleteOpts.IncludeFixIts 1929 = Args.hasArg(OPT_code_completion_with_fixits); 1930 1931 Opts.OverrideRecordLayoutsFile = 1932 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1933 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1934 if (Args.hasArg(OPT_aux_target_cpu)) 1935 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1936 if (Args.hasArg(OPT_aux_target_feature)) 1937 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1938 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1939 1940 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1941 OPT_arcmt_modify, 1942 OPT_arcmt_migrate)) { 1943 switch (A->getOption().getID()) { 1944 default: 1945 llvm_unreachable("missed a case"); 1946 case OPT_arcmt_check: 1947 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1948 break; 1949 case OPT_arcmt_modify: 1950 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1951 break; 1952 case OPT_arcmt_migrate: 1953 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1954 break; 1955 } 1956 } 1957 Opts.MTMigrateDir = 1958 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1959 Opts.ARCMTMigrateReportOut = 1960 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1961 Opts.ARCMTMigrateEmitARCErrors 1962 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1963 1964 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1965 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1966 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1967 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1968 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1969 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1970 if (Args.hasArg(OPT_objcmt_migrate_property)) 1971 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1972 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1973 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1974 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1975 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1976 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1977 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1978 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1979 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1980 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1981 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1982 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1983 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1984 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1985 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1986 if (Args.hasArg(OPT_objcmt_atomic_property)) 1987 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1988 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1989 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1990 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1991 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1992 if (Args.hasArg(OPT_objcmt_migrate_all)) 1993 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1994 1995 Opts.ObjCMTWhiteListPath = 1996 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 1997 1998 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1999 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2000 Diags.Report(diag::err_drv_argument_not_allowed_with) 2001 << "ARC migration" << "ObjC migration"; 2002 } 2003 2004 InputKind DashX(Language::Unknown); 2005 if (const Arg *A = Args.getLastArg(OPT_x)) { 2006 StringRef XValue = A->getValue(); 2007 2008 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2009 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2010 bool Preprocessed = XValue.consume_back("-cpp-output"); 2011 bool ModuleMap = XValue.consume_back("-module-map"); 2012 IsHeaderFile = 2013 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 2014 2015 // Principal languages. 2016 DashX = llvm::StringSwitch<InputKind>(XValue) 2017 .Case("c", Language::C) 2018 .Case("cl", Language::OpenCL) 2019 .Case("cuda", Language::CUDA) 2020 .Case("hip", Language::HIP) 2021 .Case("c++", Language::CXX) 2022 .Case("objective-c", Language::ObjC) 2023 .Case("objective-c++", Language::ObjCXX) 2024 .Case("renderscript", Language::RenderScript) 2025 .Default(Language::Unknown); 2026 2027 // "objc[++]-cpp-output" is an acceptable synonym for 2028 // "objective-c[++]-cpp-output". 2029 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2030 DashX = llvm::StringSwitch<InputKind>(XValue) 2031 .Case("objc", Language::ObjC) 2032 .Case("objc++", Language::ObjCXX) 2033 .Default(Language::Unknown); 2034 2035 // Some special cases cannot be combined with suffixes. 2036 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2037 DashX = llvm::StringSwitch<InputKind>(XValue) 2038 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2039 .Case("assembler-with-cpp", Language::Asm) 2040 .Cases("ast", "pcm", 2041 InputKind(Language::Unknown, InputKind::Precompiled)) 2042 .Case("ir", Language::LLVM_IR) 2043 .Default(Language::Unknown); 2044 2045 if (DashX.isUnknown()) 2046 Diags.Report(diag::err_drv_invalid_value) 2047 << A->getAsString(Args) << A->getValue(); 2048 2049 if (Preprocessed) 2050 DashX = DashX.getPreprocessed(); 2051 if (ModuleMap) 2052 DashX = DashX.withFormat(InputKind::ModuleMap); 2053 } 2054 2055 // '-' is the default input if none is given. 2056 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2057 Opts.Inputs.clear(); 2058 if (Inputs.empty()) 2059 Inputs.push_back("-"); 2060 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2061 InputKind IK = DashX; 2062 if (IK.isUnknown()) { 2063 IK = FrontendOptions::getInputKindForExtension( 2064 StringRef(Inputs[i]).rsplit('.').second); 2065 // FIXME: Warn on this? 2066 if (IK.isUnknown()) 2067 IK = Language::C; 2068 // FIXME: Remove this hack. 2069 if (i == 0) 2070 DashX = IK; 2071 } 2072 2073 bool IsSystem = false; 2074 2075 // The -emit-module action implicitly takes a module map. 2076 if (Opts.ProgramAction == frontend::GenerateModule && 2077 IK.getFormat() == InputKind::Source) { 2078 IK = IK.withFormat(InputKind::ModuleMap); 2079 IsSystem = Opts.IsSystemModule; 2080 } 2081 2082 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2083 } 2084 2085 return DashX; 2086 } 2087 2088 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2089 void *MainAddr) { 2090 std::string ClangExecutable = 2091 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2092 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2093 } 2094 2095 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2096 const std::string &WorkingDir) { 2097 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2098 Opts.Verbose = Args.hasArg(OPT_v); 2099 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2100 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2101 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2102 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2103 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2104 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2105 2106 // Canonicalize -fmodules-cache-path before storing it. 2107 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2108 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2109 if (WorkingDir.empty()) 2110 llvm::sys::fs::make_absolute(P); 2111 else 2112 llvm::sys::fs::make_absolute(WorkingDir, P); 2113 } 2114 llvm::sys::path::remove_dots(P); 2115 Opts.ModuleCachePath = std::string(P.str()); 2116 2117 Opts.ModuleUserBuildPath = 2118 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2119 // Only the -fmodule-file=<name>=<file> form. 2120 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2121 StringRef Val = A->getValue(); 2122 if (Val.find('=') != StringRef::npos){ 2123 auto Split = Val.split('='); 2124 Opts.PrebuiltModuleFiles.insert( 2125 {std::string(Split.first), std::string(Split.second)}); 2126 } 2127 } 2128 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2129 Opts.AddPrebuiltModulePath(A->getValue()); 2130 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2131 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2132 Opts.ModulesStrictContextHash = Args.hasArg(OPT_fmodules_strict_context_hash); 2133 Opts.ModulesValidateDiagnosticOptions = 2134 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2135 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2136 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2137 Opts.ModuleCachePruneInterval = 2138 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2139 Opts.ModuleCachePruneAfter = 2140 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2141 Opts.ModulesValidateOncePerBuildSession = 2142 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2143 Opts.BuildSessionTimestamp = 2144 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2145 Opts.ModulesValidateSystemHeaders = 2146 Args.hasArg(OPT_fmodules_validate_system_headers); 2147 Opts.ValidateASTInputFilesContent = 2148 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2149 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2150 Opts.ModuleFormat = A->getValue(); 2151 2152 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2153 StringRef MacroDef = A->getValue(); 2154 Opts.ModulesIgnoreMacros.insert( 2155 llvm::CachedHashString(MacroDef.split('=').first)); 2156 } 2157 2158 // Add -I..., -F..., and -index-header-map options in order. 2159 bool IsIndexHeaderMap = false; 2160 bool IsSysrootSpecified = 2161 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2162 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2163 if (A->getOption().matches(OPT_index_header_map)) { 2164 // -index-header-map applies to the next -I or -F. 2165 IsIndexHeaderMap = true; 2166 continue; 2167 } 2168 2169 frontend::IncludeDirGroup Group = 2170 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2171 2172 bool IsFramework = A->getOption().matches(OPT_F); 2173 std::string Path = A->getValue(); 2174 2175 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2176 SmallString<32> Buffer; 2177 llvm::sys::path::append(Buffer, Opts.Sysroot, 2178 llvm::StringRef(A->getValue()).substr(1)); 2179 Path = std::string(Buffer.str()); 2180 } 2181 2182 Opts.AddPath(Path, Group, IsFramework, 2183 /*IgnoreSysroot*/ true); 2184 IsIndexHeaderMap = false; 2185 } 2186 2187 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2188 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2189 for (const auto *A : 2190 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2191 if (A->getOption().matches(OPT_iprefix)) 2192 Prefix = A->getValue(); 2193 else if (A->getOption().matches(OPT_iwithprefix)) 2194 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2195 else 2196 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2197 } 2198 2199 for (const auto *A : Args.filtered(OPT_idirafter)) 2200 Opts.AddPath(A->getValue(), frontend::After, false, true); 2201 for (const auto *A : Args.filtered(OPT_iquote)) 2202 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2203 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2204 Opts.AddPath(A->getValue(), frontend::System, false, 2205 !A->getOption().matches(OPT_iwithsysroot)); 2206 for (const auto *A : Args.filtered(OPT_iframework)) 2207 Opts.AddPath(A->getValue(), frontend::System, true, true); 2208 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2209 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2210 /*IgnoreSysRoot=*/false); 2211 2212 // Add the paths for the various language specific isystem flags. 2213 for (const auto *A : Args.filtered(OPT_c_isystem)) 2214 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2215 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2216 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2217 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2218 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2219 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2220 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2221 2222 // Add the internal paths from a driver that detects standard include paths. 2223 for (const auto *A : 2224 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2225 frontend::IncludeDirGroup Group = frontend::System; 2226 if (A->getOption().matches(OPT_internal_externc_isystem)) 2227 Group = frontend::ExternCSystem; 2228 Opts.AddPath(A->getValue(), Group, false, true); 2229 } 2230 2231 // Add the path prefixes which are implicitly treated as being system headers. 2232 for (const auto *A : 2233 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2234 Opts.AddSystemHeaderPrefix( 2235 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2236 2237 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2238 Opts.AddVFSOverlayFile(A->getValue()); 2239 } 2240 2241 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2242 const llvm::Triple &T, 2243 PreprocessorOptions &PPOpts, 2244 LangStandard::Kind LangStd) { 2245 // Set some properties which depend solely on the input kind; it would be nice 2246 // to move these to the language standard, and have the driver resolve the 2247 // input kind + language standard. 2248 // 2249 // FIXME: Perhaps a better model would be for a single source file to have 2250 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2251 // simultaneously active? 2252 if (IK.getLanguage() == Language::Asm) { 2253 Opts.AsmPreprocessor = 1; 2254 } else if (IK.isObjectiveC()) { 2255 Opts.ObjC = 1; 2256 } 2257 2258 if (LangStd == LangStandard::lang_unspecified) { 2259 // Based on the base language, pick one. 2260 switch (IK.getLanguage()) { 2261 case Language::Unknown: 2262 case Language::LLVM_IR: 2263 llvm_unreachable("Invalid input kind!"); 2264 case Language::OpenCL: 2265 LangStd = LangStandard::lang_opencl10; 2266 break; 2267 case Language::CUDA: 2268 LangStd = LangStandard::lang_cuda; 2269 break; 2270 case Language::Asm: 2271 case Language::C: 2272 #if defined(CLANG_DEFAULT_STD_C) 2273 LangStd = CLANG_DEFAULT_STD_C; 2274 #else 2275 // The PS4 uses C99 as the default C standard. 2276 if (T.isPS4()) 2277 LangStd = LangStandard::lang_gnu99; 2278 else 2279 LangStd = LangStandard::lang_gnu17; 2280 #endif 2281 break; 2282 case Language::ObjC: 2283 #if defined(CLANG_DEFAULT_STD_C) 2284 LangStd = CLANG_DEFAULT_STD_C; 2285 #else 2286 LangStd = LangStandard::lang_gnu11; 2287 #endif 2288 break; 2289 case Language::CXX: 2290 case Language::ObjCXX: 2291 #if defined(CLANG_DEFAULT_STD_CXX) 2292 LangStd = CLANG_DEFAULT_STD_CXX; 2293 #else 2294 LangStd = LangStandard::lang_gnucxx14; 2295 #endif 2296 break; 2297 case Language::RenderScript: 2298 LangStd = LangStandard::lang_c99; 2299 break; 2300 case Language::HIP: 2301 LangStd = LangStandard::lang_hip; 2302 break; 2303 } 2304 } 2305 2306 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2307 Opts.LineComment = Std.hasLineComments(); 2308 Opts.C99 = Std.isC99(); 2309 Opts.C11 = Std.isC11(); 2310 Opts.C17 = Std.isC17(); 2311 Opts.C2x = Std.isC2x(); 2312 Opts.CPlusPlus = Std.isCPlusPlus(); 2313 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2314 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2315 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2316 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2317 Opts.Digraphs = Std.hasDigraphs(); 2318 Opts.GNUMode = Std.isGNUMode(); 2319 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2320 Opts.GNUCVersion = 0; 2321 Opts.HexFloats = Std.hasHexFloats(); 2322 Opts.ImplicitInt = Std.hasImplicitInt(); 2323 2324 // Set OpenCL Version. 2325 Opts.OpenCL = Std.isOpenCL(); 2326 if (LangStd == LangStandard::lang_opencl10) 2327 Opts.OpenCLVersion = 100; 2328 else if (LangStd == LangStandard::lang_opencl11) 2329 Opts.OpenCLVersion = 110; 2330 else if (LangStd == LangStandard::lang_opencl12) 2331 Opts.OpenCLVersion = 120; 2332 else if (LangStd == LangStandard::lang_opencl20) 2333 Opts.OpenCLVersion = 200; 2334 else if (LangStd == LangStandard::lang_openclcpp) 2335 Opts.OpenCLCPlusPlusVersion = 100; 2336 2337 // OpenCL has some additional defaults. 2338 if (Opts.OpenCL) { 2339 Opts.AltiVec = 0; 2340 Opts.ZVector = 0; 2341 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2342 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2343 Opts.NativeHalfType = 1; 2344 Opts.NativeHalfArgsAndReturns = 1; 2345 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2346 2347 // Include default header file for OpenCL. 2348 if (Opts.IncludeDefaultHeader) { 2349 if (Opts.DeclareOpenCLBuiltins) { 2350 // Only include base header file for builtin types and constants. 2351 PPOpts.Includes.push_back("opencl-c-base.h"); 2352 } else { 2353 PPOpts.Includes.push_back("opencl-c.h"); 2354 } 2355 } 2356 } 2357 2358 Opts.HIP = IK.getLanguage() == Language::HIP; 2359 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2360 if (Opts.CUDA) 2361 // Set default FP_CONTRACT to FAST. 2362 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2363 2364 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2365 if (Opts.RenderScript) { 2366 Opts.NativeHalfType = 1; 2367 Opts.NativeHalfArgsAndReturns = 1; 2368 } 2369 2370 // OpenCL and C++ both have bool, true, false keywords. 2371 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2372 2373 // OpenCL has half keyword 2374 Opts.Half = Opts.OpenCL; 2375 2376 // C++ has wchar_t keyword. 2377 Opts.WChar = Opts.CPlusPlus; 2378 2379 Opts.GNUKeywords = Opts.GNUMode; 2380 Opts.CXXOperatorNames = Opts.CPlusPlus; 2381 2382 Opts.AlignedAllocation = Opts.CPlusPlus17; 2383 2384 Opts.DollarIdents = !Opts.AsmPreprocessor; 2385 2386 // Enable [[]] attributes in C++11 and C2x by default. 2387 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2388 } 2389 2390 /// Attempt to parse a visibility value out of the given argument. 2391 static Visibility parseVisibility(Arg *arg, ArgList &args, 2392 DiagnosticsEngine &diags) { 2393 StringRef value = arg->getValue(); 2394 if (value == "default") { 2395 return DefaultVisibility; 2396 } else if (value == "hidden" || value == "internal") { 2397 return HiddenVisibility; 2398 } else if (value == "protected") { 2399 // FIXME: diagnose if target does not support protected visibility 2400 return ProtectedVisibility; 2401 } 2402 2403 diags.Report(diag::err_drv_invalid_value) 2404 << arg->getAsString(args) << value; 2405 return DefaultVisibility; 2406 } 2407 2408 /// Check if input file kind and language standard are compatible. 2409 static bool IsInputCompatibleWithStandard(InputKind IK, 2410 const LangStandard &S) { 2411 switch (IK.getLanguage()) { 2412 case Language::Unknown: 2413 case Language::LLVM_IR: 2414 llvm_unreachable("should not parse language flags for this input"); 2415 2416 case Language::C: 2417 case Language::ObjC: 2418 case Language::RenderScript: 2419 return S.getLanguage() == Language::C; 2420 2421 case Language::OpenCL: 2422 return S.getLanguage() == Language::OpenCL; 2423 2424 case Language::CXX: 2425 case Language::ObjCXX: 2426 return S.getLanguage() == Language::CXX; 2427 2428 case Language::CUDA: 2429 // FIXME: What -std= values should be permitted for CUDA compilations? 2430 return S.getLanguage() == Language::CUDA || 2431 S.getLanguage() == Language::CXX; 2432 2433 case Language::HIP: 2434 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2435 2436 case Language::Asm: 2437 // Accept (and ignore) all -std= values. 2438 // FIXME: The -std= value is not ignored; it affects the tokenization 2439 // and preprocessing rules if we're preprocessing this asm input. 2440 return true; 2441 } 2442 2443 llvm_unreachable("unexpected input language"); 2444 } 2445 2446 /// Get language name for given input kind. 2447 static const StringRef GetInputKindName(InputKind IK) { 2448 switch (IK.getLanguage()) { 2449 case Language::C: 2450 return "C"; 2451 case Language::ObjC: 2452 return "Objective-C"; 2453 case Language::CXX: 2454 return "C++"; 2455 case Language::ObjCXX: 2456 return "Objective-C++"; 2457 case Language::OpenCL: 2458 return "OpenCL"; 2459 case Language::CUDA: 2460 return "CUDA"; 2461 case Language::RenderScript: 2462 return "RenderScript"; 2463 case Language::HIP: 2464 return "HIP"; 2465 2466 case Language::Asm: 2467 return "Asm"; 2468 case Language::LLVM_IR: 2469 return "LLVM IR"; 2470 2471 case Language::Unknown: 2472 break; 2473 } 2474 llvm_unreachable("unknown input language"); 2475 } 2476 2477 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2478 const TargetOptions &TargetOpts, 2479 PreprocessorOptions &PPOpts, 2480 DiagnosticsEngine &Diags) { 2481 // FIXME: Cleanup per-file based stuff. 2482 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2483 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2484 LangStd = LangStandard::getLangKind(A->getValue()); 2485 if (LangStd == LangStandard::lang_unspecified) { 2486 Diags.Report(diag::err_drv_invalid_value) 2487 << A->getAsString(Args) << A->getValue(); 2488 // Report supported standards with short description. 2489 for (unsigned KindValue = 0; 2490 KindValue != LangStandard::lang_unspecified; 2491 ++KindValue) { 2492 const LangStandard &Std = LangStandard::getLangStandardForKind( 2493 static_cast<LangStandard::Kind>(KindValue)); 2494 if (IsInputCompatibleWithStandard(IK, Std)) { 2495 auto Diag = Diags.Report(diag::note_drv_use_standard); 2496 Diag << Std.getName() << Std.getDescription(); 2497 unsigned NumAliases = 0; 2498 #define LANGSTANDARD(id, name, lang, desc, features) 2499 #define LANGSTANDARD_ALIAS(id, alias) \ 2500 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2501 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2502 #include "clang/Basic/LangStandards.def" 2503 Diag << NumAliases; 2504 #define LANGSTANDARD(id, name, lang, desc, features) 2505 #define LANGSTANDARD_ALIAS(id, alias) \ 2506 if (KindValue == LangStandard::lang_##id) Diag << alias; 2507 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2508 #include "clang/Basic/LangStandards.def" 2509 } 2510 } 2511 } else { 2512 // Valid standard, check to make sure language and standard are 2513 // compatible. 2514 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2515 if (!IsInputCompatibleWithStandard(IK, Std)) { 2516 Diags.Report(diag::err_drv_argument_not_allowed_with) 2517 << A->getAsString(Args) << GetInputKindName(IK); 2518 } 2519 } 2520 } 2521 2522 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2523 Opts.DllExportInlines = false; 2524 2525 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2526 StringRef Name = A->getValue(); 2527 if (Name == "full" || Name == "branch") { 2528 Opts.CFProtectionBranch = 1; 2529 } 2530 } 2531 // -cl-std only applies for OpenCL language standards. 2532 // Override the -std option in this case. 2533 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2534 LangStandard::Kind OpenCLLangStd 2535 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2536 .Cases("cl", "CL", LangStandard::lang_opencl10) 2537 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2538 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2539 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2540 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2541 .Default(LangStandard::lang_unspecified); 2542 2543 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2544 Diags.Report(diag::err_drv_invalid_value) 2545 << A->getAsString(Args) << A->getValue(); 2546 } 2547 else 2548 LangStd = OpenCLLangStd; 2549 } 2550 2551 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2552 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2553 if (Opts.SYCL) { 2554 // -sycl-std applies to any SYCL source, not only those containing kernels, 2555 // but also those using the SYCL API 2556 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2557 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2558 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2559 .Default(0U); 2560 2561 if (Opts.SYCLVersion == 0U) { 2562 // User has passed an invalid value to the flag, this is an error 2563 Diags.Report(diag::err_drv_invalid_value) 2564 << A->getAsString(Args) << A->getValue(); 2565 } 2566 } 2567 } 2568 2569 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2570 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2571 2572 llvm::Triple T(TargetOpts.Triple); 2573 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2574 2575 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2576 // This option should be deprecated for CL > 1.0 because 2577 // this option was added for compatibility with OpenCL 1.0. 2578 if (Args.getLastArg(OPT_cl_strict_aliasing) 2579 && Opts.OpenCLVersion > 100) { 2580 Diags.Report(diag::warn_option_invalid_ocl_version) 2581 << Opts.getOpenCLVersionTuple().getAsString() 2582 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2583 } 2584 2585 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2586 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2587 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2588 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2589 // name, as it doesn't seem a useful distinction. 2590 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2591 Opts.GNUKeywords); 2592 2593 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2594 2595 if (Args.hasArg(OPT_fno_operator_names)) 2596 Opts.CXXOperatorNames = 0; 2597 2598 if (Args.hasArg(OPT_fcuda_is_device)) 2599 Opts.CUDAIsDevice = 1; 2600 2601 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2602 Opts.CUDAAllowVariadicFunctions = 1; 2603 2604 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2605 Opts.CUDAHostDeviceConstexpr = 0; 2606 2607 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2608 Opts.CUDADeviceApproxTranscendentals = 1; 2609 2610 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2611 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2612 if (Opts.HIP) 2613 Opts.GPUAllowDeviceInit = 1; 2614 else 2615 Diags.Report(diag::warn_ignored_hip_only_option) 2616 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2617 } 2618 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2619 if (Opts.HIP) 2620 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2621 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2622 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2623 Diags.Report(diag::warn_ignored_hip_only_option) 2624 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2625 2626 if (Opts.ObjC) { 2627 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2628 StringRef value = arg->getValue(); 2629 if (Opts.ObjCRuntime.tryParse(value)) 2630 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2631 } 2632 2633 if (Args.hasArg(OPT_fobjc_gc_only)) 2634 Opts.setGC(LangOptions::GCOnly); 2635 else if (Args.hasArg(OPT_fobjc_gc)) 2636 Opts.setGC(LangOptions::HybridGC); 2637 else if (Args.hasArg(OPT_fobjc_arc)) { 2638 Opts.ObjCAutoRefCount = 1; 2639 if (!Opts.ObjCRuntime.allowsARC()) 2640 Diags.Report(diag::err_arc_unsupported_on_runtime); 2641 } 2642 2643 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2644 // whether the feature is actually enabled. This is predominantly 2645 // determined by -fobjc-runtime, but we allow it to be overridden 2646 // from the command line for testing purposes. 2647 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2648 Opts.ObjCWeakRuntime = 1; 2649 else 2650 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2651 2652 // ObjCWeak determines whether __weak is actually enabled. 2653 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2654 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2655 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2656 assert(!Opts.ObjCWeak); 2657 } else if (Opts.getGC() != LangOptions::NonGC) { 2658 Diags.Report(diag::err_objc_weak_with_gc); 2659 } else if (!Opts.ObjCWeakRuntime) { 2660 Diags.Report(diag::err_objc_weak_unsupported); 2661 } else { 2662 Opts.ObjCWeak = 1; 2663 } 2664 } else if (Opts.ObjCAutoRefCount) { 2665 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2666 } 2667 2668 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2669 Opts.ObjCInferRelatedResultType = 0; 2670 2671 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2672 Opts.ObjCSubscriptingLegacyRuntime = 2673 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2674 } 2675 2676 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2677 // Check that the version has 1 to 3 components and the minor and patch 2678 // versions fit in two decimal digits. 2679 VersionTuple GNUCVer; 2680 bool Invalid = GNUCVer.tryParse(A->getValue()); 2681 unsigned Major = GNUCVer.getMajor(); 2682 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2683 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2684 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2685 Diags.Report(diag::err_drv_invalid_value) 2686 << A->getAsString(Args) << A->getValue(); 2687 } 2688 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2689 } 2690 2691 if (Args.hasArg(OPT_fgnu89_inline)) { 2692 if (Opts.CPlusPlus) 2693 Diags.Report(diag::err_drv_argument_not_allowed_with) 2694 << "-fgnu89-inline" << GetInputKindName(IK); 2695 else 2696 Opts.GNUInline = 1; 2697 } 2698 2699 if (Args.hasArg(OPT_fapple_kext)) { 2700 if (!Opts.CPlusPlus) 2701 Diags.Report(diag::warn_c_kext); 2702 else 2703 Opts.AppleKext = 1; 2704 } 2705 2706 if (Args.hasArg(OPT_print_ivar_layout)) 2707 Opts.ObjCGCBitmapPrint = 1; 2708 2709 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2710 Opts.NoConstantCFStrings = 1; 2711 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2712 Opts.CFRuntime = 2713 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2714 .Cases("unspecified", "standalone", "objc", 2715 LangOptions::CoreFoundationABI::ObjectiveC) 2716 .Cases("swift", "swift-5.0", 2717 LangOptions::CoreFoundationABI::Swift5_0) 2718 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2719 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2720 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2721 2722 if (Args.hasArg(OPT_fzvector)) 2723 Opts.ZVector = 1; 2724 2725 if (Args.hasArg(OPT_pthread)) 2726 Opts.POSIXThreads = 1; 2727 2728 // The value-visibility mode defaults to "default". 2729 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2730 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2731 } else { 2732 Opts.setValueVisibilityMode(DefaultVisibility); 2733 } 2734 2735 // The type-visibility mode defaults to the value-visibility mode. 2736 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2737 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2738 } else { 2739 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2740 } 2741 2742 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2743 Opts.InlineVisibilityHidden = 1; 2744 2745 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2746 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2747 2748 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2749 Opts.SetVisibilityForExternDecls = 1; 2750 2751 if (Args.hasArg(OPT_ftrapv)) { 2752 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2753 // Set the handler, if one is specified. 2754 Opts.OverflowHandler = 2755 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2756 } 2757 else if (Args.hasArg(OPT_fwrapv)) 2758 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2759 2760 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2761 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2762 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2763 Opts.MSCompatibilityVersion = 0; 2764 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2765 VersionTuple VT; 2766 if (VT.tryParse(A->getValue())) 2767 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2768 << A->getValue(); 2769 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2770 VT.getMinor().getValueOr(0) * 100000 + 2771 VT.getSubminor().getValueOr(0); 2772 } 2773 2774 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2775 // is specified, or -std is set to a conforming mode. 2776 // Trigraphs are disabled by default in c++1z onwards. 2777 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2778 Opts.Trigraphs = 2779 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2780 2781 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2782 OPT_fno_dollars_in_identifiers, 2783 Opts.DollarIdents); 2784 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2785 Opts.setVtorDispMode( 2786 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2787 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2788 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2789 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2790 Opts.ConstStrings); 2791 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2792 using LaxKind = LangOptions::LaxVectorConversionKind; 2793 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2794 .Case("none", LaxKind::None) 2795 .Case("integer", LaxKind::Integer) 2796 .Case("all", LaxKind::All) 2797 .Default(llvm::None)) 2798 Opts.setLaxVectorConversions(*Kind); 2799 else 2800 Diags.Report(diag::err_drv_invalid_value) 2801 << A->getAsString(Args) << A->getValue(); 2802 } 2803 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2804 Opts.ThreadsafeStatics = 0; 2805 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2806 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2807 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2808 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2809 2810 // -ffixed-point 2811 Opts.FixedPoint = 2812 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2813 !Opts.CPlusPlus; 2814 Opts.PaddingOnUnsignedFixedPoint = 2815 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2816 OPT_fno_padding_on_unsigned_fixed_point, 2817 /*Default=*/false) && 2818 Opts.FixedPoint; 2819 2820 // Handle exception personalities 2821 Arg *A = Args.getLastArg( 2822 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2823 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2824 if (A) { 2825 const Option &Opt = A->getOption(); 2826 llvm::Triple T(TargetOpts.Triple); 2827 if (T.isWindowsMSVCEnvironment()) 2828 Diags.Report(diag::err_fe_invalid_exception_model) 2829 << Opt.getName() << T.str(); 2830 2831 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2832 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2833 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2834 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2835 } 2836 2837 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2838 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2839 2840 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2841 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2842 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2843 && Opts.OpenCLVersion == 200); 2844 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2845 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2846 2847 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2848 Args.hasArg(OPT_fconvergent_functions); 2849 2850 Opts.DoubleSquareBracketAttributes = 2851 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2852 OPT_fno_double_square_bracket_attributes, 2853 Opts.DoubleSquareBracketAttributes); 2854 2855 Opts.CPlusPlusModules = Opts.CPlusPlus2a; 2856 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2857 Opts.Modules = 2858 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2859 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2860 Opts.ModulesDeclUse = 2861 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2862 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2863 // enter a different module (eg, when building a header unit). 2864 Opts.ModulesLocalVisibility = 2865 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2866 Opts.CPlusPlusModules; 2867 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2868 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2869 Opts.ModulesSearchAll = Opts.Modules && 2870 !Args.hasArg(OPT_fno_modules_search_all) && 2871 Args.hasArg(OPT_fmodules_search_all); 2872 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2873 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2874 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2875 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2876 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2877 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2878 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2879 .Case("char", 1) 2880 .Case("short", 2) 2881 .Case("int", 4) 2882 .Default(0); 2883 if (Opts.WCharSize == 0) 2884 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2885 } 2886 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2887 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2888 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2889 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2890 if (!Opts.NoBuiltin) 2891 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2892 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2893 Opts.RelaxedTemplateTemplateArgs = 2894 Args.hasArg(OPT_frelaxed_template_template_args); 2895 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2896 Opts.AlignedAllocation = 2897 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2898 Opts.AlignedAllocation); 2899 Opts.AlignedAllocationUnavailable = 2900 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2901 Opts.NewAlignOverride = 2902 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2903 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2904 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2905 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2906 << A->getValue(); 2907 Opts.NewAlignOverride = 0; 2908 } 2909 Opts.ConceptSatisfactionCaching = 2910 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2911 if (Args.hasArg(OPT_fconcepts_ts)) 2912 Diags.Report(diag::warn_fe_concepts_ts_flag); 2913 Opts.RecoveryAST = 2914 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, false); 2915 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2916 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2917 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2918 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2919 Opts.InstantiationDepth = 2920 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2921 Opts.ArrowDepth = 2922 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2923 Opts.ConstexprCallDepth = 2924 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2925 Opts.ConstexprStepLimit = 2926 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2927 Opts.EnableNewConstInterp = 2928 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2929 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2930 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2931 Opts.NumLargeByValueCopy = 2932 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2933 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2934 Opts.ObjCConstantStringClass = 2935 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2936 Opts.ObjCDefaultSynthProperties = 2937 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2938 Opts.EncodeExtendedBlockSig = 2939 Args.hasArg(OPT_fencode_extended_block_signature); 2940 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2941 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2942 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2943 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2944 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 2945 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2946 ? 128 2947 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2948 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2949 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2950 Opts.ROPI = Args.hasArg(OPT_fropi); 2951 Opts.RWPI = Args.hasArg(OPT_frwpi); 2952 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2953 Opts.Static = Args.hasArg(OPT_static_define); 2954 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2955 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2956 || Args.hasArg(OPT_fdump_record_layouts); 2957 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2958 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2959 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2960 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2961 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2962 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2963 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2964 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2965 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2966 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2967 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2968 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2969 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 2970 Opts.CurrentModule = Opts.ModuleName; 2971 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2972 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2973 llvm::sort(Opts.ModuleFeatures); 2974 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2975 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2976 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2977 // is enabled. 2978 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2979 | Opts.NativeHalfArgsAndReturns; 2980 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2981 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2982 2983 // __declspec is enabled by default for the PS4 by the driver, and also 2984 // enabled for Microsoft Extensions or Borland Extensions, here. 2985 // 2986 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2987 // CUDA extension. However, it is required for supporting 2988 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2989 // been rewritten in terms of something more generic, remove the Opts.CUDA 2990 // term here. 2991 Opts.DeclSpecKeyword = 2992 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2993 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2994 2995 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2996 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2997 .Case("target", LangOptions::ASMM_Target) 2998 .Case("no", LangOptions::ASMM_Off) 2999 .Case("yes", LangOptions::ASMM_On) 3000 .Default(255)) { 3001 default: 3002 Diags.Report(diag::err_drv_invalid_value) 3003 << "-faddress-space-map-mangling=" << A->getValue(); 3004 break; 3005 case LangOptions::ASMM_Target: 3006 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 3007 break; 3008 case LangOptions::ASMM_On: 3009 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 3010 break; 3011 case LangOptions::ASMM_Off: 3012 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 3013 break; 3014 } 3015 } 3016 3017 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 3018 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 3019 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 3020 A->getValue()) 3021 .Case("single", 3022 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3023 .Case("multiple", 3024 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3025 .Case("virtual", 3026 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3027 .Default(LangOptions::PPTMK_BestCase); 3028 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3029 Diags.Report(diag::err_drv_invalid_value) 3030 << "-fms-memptr-rep=" << A->getValue(); 3031 3032 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3033 } 3034 3035 // Check for MS default calling conventions being specified. 3036 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3037 LangOptions::DefaultCallingConvention DefaultCC = 3038 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3039 .Case("cdecl", LangOptions::DCC_CDecl) 3040 .Case("fastcall", LangOptions::DCC_FastCall) 3041 .Case("stdcall", LangOptions::DCC_StdCall) 3042 .Case("vectorcall", LangOptions::DCC_VectorCall) 3043 .Case("regcall", LangOptions::DCC_RegCall) 3044 .Default(LangOptions::DCC_None); 3045 if (DefaultCC == LangOptions::DCC_None) 3046 Diags.Report(diag::err_drv_invalid_value) 3047 << "-fdefault-calling-conv=" << A->getValue(); 3048 3049 llvm::Triple T(TargetOpts.Triple); 3050 llvm::Triple::ArchType Arch = T.getArch(); 3051 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3052 DefaultCC == LangOptions::DCC_StdCall) && 3053 Arch != llvm::Triple::x86; 3054 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3055 DefaultCC == LangOptions::DCC_RegCall) && 3056 !T.isX86(); 3057 if (emitError) 3058 Diags.Report(diag::err_drv_argument_not_allowed_with) 3059 << A->getSpelling() << T.getTriple(); 3060 else 3061 Opts.setDefaultCallingConv(DefaultCC); 3062 } 3063 3064 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3065 3066 // -mrtd option 3067 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3068 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3069 Diags.Report(diag::err_drv_argument_not_allowed_with) 3070 << A->getSpelling() << "-fdefault-calling-conv"; 3071 else { 3072 llvm::Triple T(TargetOpts.Triple); 3073 if (T.getArch() != llvm::Triple::x86) 3074 Diags.Report(diag::err_drv_argument_not_allowed_with) 3075 << A->getSpelling() << T.getTriple(); 3076 else 3077 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3078 } 3079 } 3080 3081 // Check if -fopenmp is specified and set default version to 4.5. 3082 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 45 : 0; 3083 // Check if -fopenmp-simd is specified. 3084 bool IsSimdSpecified = 3085 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3086 /*Default=*/false); 3087 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3088 Opts.OpenMPUseTLS = 3089 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3090 Opts.OpenMPIsDevice = 3091 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3092 Opts.OpenMPIRBuilder = 3093 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3094 bool IsTargetSpecified = 3095 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3096 3097 if (Opts.OpenMP || Opts.OpenMPSimd) { 3098 if (int Version = getLastArgIntValue( 3099 Args, OPT_fopenmp_version_EQ, 3100 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 3101 Opts.OpenMP = Version; 3102 else if (IsSimdSpecified || IsTargetSpecified) 3103 Opts.OpenMP = 45; 3104 // Provide diagnostic when a given target is not expected to be an OpenMP 3105 // device or host. 3106 if (!Opts.OpenMPIsDevice) { 3107 switch (T.getArch()) { 3108 default: 3109 break; 3110 // Add unsupported host targets here: 3111 case llvm::Triple::nvptx: 3112 case llvm::Triple::nvptx64: 3113 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3114 << TargetOpts.Triple; 3115 break; 3116 } 3117 } 3118 } 3119 3120 // Set the flag to prevent the implementation from emitting device exception 3121 // handling code for those requiring so. 3122 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 3123 Opts.Exceptions = 0; 3124 Opts.CXXExceptions = 0; 3125 } 3126 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3127 Opts.OpenMPCUDANumSMs = 3128 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3129 Opts.OpenMPCUDANumSMs, Diags); 3130 Opts.OpenMPCUDABlocksPerSM = 3131 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3132 Opts.OpenMPCUDABlocksPerSM, Diags); 3133 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3134 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3135 Opts.OpenMPCUDAReductionBufNum, Diags); 3136 } 3137 3138 // Prevent auto-widening the representation of loop counters during an 3139 // OpenMP collapse clause. 3140 Opts.OpenMPOptimisticCollapse = 3141 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3142 3143 // Get the OpenMP target triples if any. 3144 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3145 3146 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3147 llvm::Triple TT(A->getValue(i)); 3148 3149 if (TT.getArch() == llvm::Triple::UnknownArch || 3150 !(TT.getArch() == llvm::Triple::aarch64 || 3151 TT.getArch() == llvm::Triple::ppc || 3152 TT.getArch() == llvm::Triple::ppc64 || 3153 TT.getArch() == llvm::Triple::ppc64le || 3154 TT.getArch() == llvm::Triple::nvptx || 3155 TT.getArch() == llvm::Triple::nvptx64 || 3156 TT.getArch() == llvm::Triple::x86 || 3157 TT.getArch() == llvm::Triple::x86_64)) 3158 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3159 else 3160 Opts.OMPTargetTriples.push_back(TT); 3161 } 3162 } 3163 3164 // Get OpenMP host file path if any and report if a non existent file is 3165 // found 3166 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3167 Opts.OMPHostIRFile = A->getValue(); 3168 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3169 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3170 << Opts.OMPHostIRFile; 3171 } 3172 3173 // Set CUDA mode for OpenMP target NVPTX if specified in options 3174 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 3175 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3176 3177 // Set CUDA mode for OpenMP target NVPTX if specified in options 3178 Opts.OpenMPCUDAForceFullRuntime = 3179 Opts.OpenMPIsDevice && T.isNVPTX() && 3180 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3181 3182 // Record whether the __DEPRECATED define was requested. 3183 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3184 OPT_fno_deprecated_macro, 3185 Opts.Deprecated); 3186 3187 // FIXME: Eliminate this dependency. 3188 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3189 OptSize = getOptimizationLevelSize(Args); 3190 Opts.Optimize = Opt != 0; 3191 Opts.OptimizeSize = OptSize != 0; 3192 3193 // This is the __NO_INLINE__ define, which just depends on things like the 3194 // optimization level and -fno-inline, not actually whether the backend has 3195 // inlining enabled. 3196 Opts.NoInlineDefine = !Opts.Optimize; 3197 if (Arg *InlineArg = Args.getLastArg( 3198 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3199 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3200 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3201 Opts.NoInlineDefine = true; 3202 3203 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 3204 Args.hasArg(OPT_cl_fast_relaxed_math); 3205 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3206 Args.hasArg(OPT_cl_finite_math_only) || 3207 Args.hasArg(OPT_cl_fast_relaxed_math); 3208 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3209 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3210 Args.hasArg(OPT_cl_fast_relaxed_math); 3211 3212 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3213 StringRef Val = A->getValue(); 3214 if (Val == "fast") 3215 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 3216 else if (Val == "on") 3217 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 3218 else if (Val == "off") 3219 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 3220 else 3221 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3222 } 3223 3224 LangOptions::FPRoundingModeKind FPRM = LangOptions::FPR_ToNearest; 3225 if (Args.hasArg(OPT_frounding_math)) { 3226 FPRM = LangOptions::FPR_Dynamic; 3227 } 3228 Opts.setFPRoundingMode(FPRM); 3229 3230 if (Args.hasArg(OPT_ftrapping_math)) { 3231 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3232 } 3233 3234 if (Args.hasArg(OPT_fno_trapping_math)) { 3235 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3236 } 3237 3238 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3239 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3240 StringRef Val = A->getValue(); 3241 if (Val.equals("ignore")) 3242 FPEB = LangOptions::FPE_Ignore; 3243 else if (Val.equals("maytrap")) 3244 FPEB = LangOptions::FPE_MayTrap; 3245 else if (Val.equals("strict")) 3246 FPEB = LangOptions::FPE_Strict; 3247 else 3248 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3249 } 3250 Opts.setFPExceptionMode(FPEB); 3251 3252 Opts.RetainCommentsFromSystemHeaders = 3253 Args.hasArg(OPT_fretain_comments_from_system_headers); 3254 3255 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3256 switch (SSP) { 3257 default: 3258 Diags.Report(diag::err_drv_invalid_value) 3259 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3260 break; 3261 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3262 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3263 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3264 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3265 } 3266 3267 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3268 StringRef Val = A->getValue(); 3269 if (Val == "uninitialized") 3270 Opts.setTrivialAutoVarInit( 3271 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3272 else if (Val == "zero") 3273 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3274 else if (Val == "pattern") 3275 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3276 else 3277 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3278 } 3279 3280 // Parse -fsanitize= arguments. 3281 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3282 Diags, Opts.Sanitize); 3283 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3284 Opts.SanitizeAddressFieldPadding = 3285 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3286 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3287 std::vector<std::string> systemBlacklists = 3288 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3289 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3290 systemBlacklists.begin(), 3291 systemBlacklists.end()); 3292 3293 // -fxray-instrument 3294 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3295 Opts.XRayAlwaysEmitCustomEvents = 3296 Args.hasArg(OPT_fxray_always_emit_customevents); 3297 Opts.XRayAlwaysEmitTypedEvents = 3298 Args.hasArg(OPT_fxray_always_emit_typedevents); 3299 3300 // -fxray-{always,never}-instrument= filenames. 3301 Opts.XRayAlwaysInstrumentFiles = 3302 Args.getAllArgValues(OPT_fxray_always_instrument); 3303 Opts.XRayNeverInstrumentFiles = 3304 Args.getAllArgValues(OPT_fxray_never_instrument); 3305 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3306 3307 // -fforce-emit-vtables 3308 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3309 3310 // -fallow-editor-placeholders 3311 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3312 3313 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3314 3315 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3316 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3317 3318 StringRef Ver = A->getValue(); 3319 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3320 unsigned Major, Minor = 0; 3321 3322 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3323 // y or y.0 (4 <= y <= current version). 3324 if (!VerParts.first.startswith("0") && 3325 !VerParts.first.getAsInteger(10, Major) && 3326 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3327 (Major == 3 ? VerParts.second.size() == 1 && 3328 !VerParts.second.getAsInteger(10, Minor) 3329 : VerParts.first.size() == Ver.size() || 3330 VerParts.second == "0")) { 3331 // Got a valid version number. 3332 if (Major == 3 && Minor <= 8) 3333 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3334 else if (Major <= 4) 3335 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3336 else if (Major <= 6) 3337 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3338 else if (Major <= 7) 3339 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3340 else if (Major <= 9) 3341 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3342 } else if (Ver != "latest") { 3343 Diags.Report(diag::err_drv_invalid_value) 3344 << A->getAsString(Args) << A->getValue(); 3345 } 3346 } 3347 3348 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3349 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3350 3351 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3352 } 3353 3354 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3355 switch (Action) { 3356 case frontend::ASTDeclList: 3357 case frontend::ASTDump: 3358 case frontend::ASTPrint: 3359 case frontend::ASTView: 3360 case frontend::EmitAssembly: 3361 case frontend::EmitBC: 3362 case frontend::EmitHTML: 3363 case frontend::EmitLLVM: 3364 case frontend::EmitLLVMOnly: 3365 case frontend::EmitCodeGenOnly: 3366 case frontend::EmitObj: 3367 case frontend::FixIt: 3368 case frontend::GenerateModule: 3369 case frontend::GenerateModuleInterface: 3370 case frontend::GenerateHeaderModule: 3371 case frontend::GeneratePCH: 3372 case frontend::GenerateInterfaceIfsExpV1: 3373 case frontend::ParseSyntaxOnly: 3374 case frontend::ModuleFileInfo: 3375 case frontend::VerifyPCH: 3376 case frontend::PluginAction: 3377 case frontend::RewriteObjC: 3378 case frontend::RewriteTest: 3379 case frontend::RunAnalysis: 3380 case frontend::TemplightDump: 3381 case frontend::MigrateSource: 3382 return false; 3383 3384 case frontend::DumpCompilerOptions: 3385 case frontend::DumpRawTokens: 3386 case frontend::DumpTokens: 3387 case frontend::InitOnly: 3388 case frontend::PrintPreamble: 3389 case frontend::PrintPreprocessedInput: 3390 case frontend::RewriteMacros: 3391 case frontend::RunPreprocessorOnly: 3392 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3393 return true; 3394 } 3395 llvm_unreachable("invalid frontend action"); 3396 } 3397 3398 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3399 DiagnosticsEngine &Diags, 3400 frontend::ActionKind Action) { 3401 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3402 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3403 Args.hasArg(OPT_pch_through_hdrstop_use); 3404 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3405 Opts.PCHThroughHeader = 3406 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3407 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3408 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3409 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3410 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3411 3412 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3413 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3414 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3415 3416 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3417 auto Split = StringRef(A).split('='); 3418 Opts.MacroPrefixMap.insert( 3419 {std::string(Split.first), std::string(Split.second)}); 3420 } 3421 3422 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3423 StringRef Value(A->getValue()); 3424 size_t Comma = Value.find(','); 3425 unsigned Bytes = 0; 3426 unsigned EndOfLine = 0; 3427 3428 if (Comma == StringRef::npos || 3429 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3430 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3431 Diags.Report(diag::err_drv_preamble_format); 3432 else { 3433 Opts.PrecompiledPreambleBytes.first = Bytes; 3434 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3435 } 3436 } 3437 3438 // Add the __CET__ macro if a CFProtection option is set. 3439 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3440 StringRef Name = A->getValue(); 3441 if (Name == "branch") 3442 Opts.addMacroDef("__CET__=1"); 3443 else if (Name == "return") 3444 Opts.addMacroDef("__CET__=2"); 3445 else if (Name == "full") 3446 Opts.addMacroDef("__CET__=3"); 3447 } 3448 3449 // Add macros from the command line. 3450 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3451 if (A->getOption().matches(OPT_D)) 3452 Opts.addMacroDef(A->getValue()); 3453 else 3454 Opts.addMacroUndef(A->getValue()); 3455 } 3456 3457 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3458 3459 // Add the ordered list of -includes. 3460 for (const auto *A : Args.filtered(OPT_include)) 3461 Opts.Includes.emplace_back(A->getValue()); 3462 3463 for (const auto *A : Args.filtered(OPT_chain_include)) 3464 Opts.ChainedIncludes.emplace_back(A->getValue()); 3465 3466 for (const auto *A : Args.filtered(OPT_remap_file)) { 3467 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3468 3469 if (Split.second.empty()) { 3470 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3471 continue; 3472 } 3473 3474 Opts.addRemappedFile(Split.first, Split.second); 3475 } 3476 3477 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3478 StringRef Name = A->getValue(); 3479 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3480 .Case("libc++", ARCXX_libcxx) 3481 .Case("libstdc++", ARCXX_libstdcxx) 3482 .Case("none", ARCXX_nolib) 3483 .Default(~0U); 3484 if (Library == ~0U) 3485 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3486 else 3487 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3488 } 3489 3490 // Always avoid lexing editor placeholders when we're just running the 3491 // preprocessor as we never want to emit the 3492 // "editor placeholder in source file" error in PP only mode. 3493 if (isStrictlyPreprocessorAction(Action)) 3494 Opts.LexEditorPlaceholders = false; 3495 3496 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3497 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3498 } 3499 3500 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3501 ArgList &Args, 3502 frontend::ActionKind Action) { 3503 if (isStrictlyPreprocessorAction(Action)) 3504 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3505 else 3506 Opts.ShowCPP = 0; 3507 3508 Opts.ShowComments = Args.hasArg(OPT_C); 3509 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3510 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3511 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3512 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3513 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3514 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3515 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3516 } 3517 3518 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3519 DiagnosticsEngine &Diags) { 3520 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3521 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3522 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3523 StringRef Value = A->getValue(); 3524 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3525 .Case("default", llvm::EABI::Default) 3526 .Case("4", llvm::EABI::EABI4) 3527 .Case("5", llvm::EABI::EABI5) 3528 .Case("gnu", llvm::EABI::GNU) 3529 .Default(llvm::EABI::Unknown); 3530 if (EABIVersion == llvm::EABI::Unknown) 3531 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3532 << Value; 3533 else 3534 Opts.EABIVersion = EABIVersion; 3535 } 3536 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3537 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3538 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3539 Opts.LinkerVersion = 3540 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3541 Opts.Triple = std::string(Args.getLastArgValue(OPT_triple)); 3542 // Use the default target triple if unspecified. 3543 if (Opts.Triple.empty()) 3544 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3545 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3546 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3547 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3548 Opts.NVPTXUseShortPointers = Args.hasFlag( 3549 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3550 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3551 llvm::VersionTuple Version; 3552 if (Version.tryParse(A->getValue())) 3553 Diags.Report(diag::err_drv_invalid_value) 3554 << A->getAsString(Args) << A->getValue(); 3555 else 3556 Opts.SDKVersion = Version; 3557 } 3558 } 3559 3560 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3561 ArrayRef<const char *> CommandLineArgs, 3562 DiagnosticsEngine &Diags) { 3563 bool Success = true; 3564 3565 // Parse the arguments. 3566 const OptTable &Opts = getDriverOptTable(); 3567 const unsigned IncludedFlagsBitmask = options::CC1Option; 3568 unsigned MissingArgIndex, MissingArgCount; 3569 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3570 MissingArgCount, IncludedFlagsBitmask); 3571 LangOptions &LangOpts = *Res.getLangOpts(); 3572 3573 // Check for missing argument error. 3574 if (MissingArgCount) { 3575 Diags.Report(diag::err_drv_missing_argument) 3576 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3577 Success = false; 3578 } 3579 3580 // Issue errors on unknown arguments. 3581 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3582 auto ArgString = A->getAsString(Args); 3583 std::string Nearest; 3584 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3585 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3586 else 3587 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3588 << ArgString << Nearest; 3589 Success = false; 3590 } 3591 3592 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3593 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3594 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3595 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3596 Res.getDependencyOutputOpts().Targets.empty()) { 3597 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3598 Success = false; 3599 } 3600 Success &= 3601 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3602 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3603 ParseCommentArgs(LangOpts.CommentOpts, Args); 3604 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3605 // FIXME: We shouldn't have to pass the DashX option around here 3606 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3607 LangOpts.IsHeaderFile); 3608 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3609 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3610 Res.getTargetOpts(), Res.getFrontendOpts()); 3611 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3612 Res.getFileSystemOpts().WorkingDir); 3613 llvm::Triple T(Res.getTargetOpts().Triple); 3614 if (DashX.getFormat() == InputKind::Precompiled || 3615 DashX.getLanguage() == Language::LLVM_IR) { 3616 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3617 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3618 // what the input type is. 3619 if (Args.hasArg(OPT_fobjc_arc)) 3620 LangOpts.ObjCAutoRefCount = 1; 3621 // PIClevel and PIELevel are needed during code generation and this should be 3622 // set regardless of the input type. 3623 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3624 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3625 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3626 Diags, LangOpts.Sanitize); 3627 } else { 3628 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3629 // FIXME: Should we really be calling this for an Language::Asm input? 3630 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3631 Res.getPreprocessorOpts(), Diags); 3632 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3633 LangOpts.ObjCExceptions = 1; 3634 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3635 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3636 // preprocessed input as we don't expect it to be used with -std=libc++ 3637 // anyway. 3638 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3639 } 3640 } 3641 3642 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3643 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3644 3645 LangOpts.FunctionAlignment = 3646 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3647 3648 if (LangOpts.CUDA) { 3649 // During CUDA device-side compilation, the aux triple is the 3650 // triple used for host compilation. 3651 if (LangOpts.CUDAIsDevice) 3652 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3653 } 3654 3655 // Set the triple of the host for OpenMP device compile. 3656 if (LangOpts.OpenMPIsDevice) 3657 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3658 3659 // FIXME: Override value name discarding when asan or msan is used because the 3660 // backend passes depend on the name of the alloca in order to print out 3661 // names. 3662 Res.getCodeGenOpts().DiscardValueNames &= 3663 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3664 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3665 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3666 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3667 3668 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3669 Res.getFrontendOpts().ProgramAction); 3670 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3671 Res.getFrontendOpts().ProgramAction); 3672 3673 // Turn on -Wspir-compat for SPIR target. 3674 if (T.isSPIR()) 3675 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3676 3677 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3678 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3679 !Res.getLangOpts()->Sanitize.empty()) { 3680 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3681 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3682 } 3683 return Success; 3684 } 3685 3686 std::string CompilerInvocation::getModuleHash() const { 3687 // Note: For QoI reasons, the things we use as a hash here should all be 3688 // dumped via the -module-info flag. 3689 using llvm::hash_code; 3690 using llvm::hash_value; 3691 using llvm::hash_combine; 3692 using llvm::hash_combine_range; 3693 3694 // Start the signature with the compiler version. 3695 // FIXME: We'd rather use something more cryptographically sound than 3696 // CityHash, but this will do for now. 3697 hash_code code = hash_value(getClangFullRepositoryVersion()); 3698 3699 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3700 // and getClangFullRepositoryVersion() doesn't include git revision. 3701 code = hash_combine(code, serialization::VERSION_MAJOR, 3702 serialization::VERSION_MINOR); 3703 3704 // Extend the signature with the language options 3705 #define LANGOPT(Name, Bits, Default, Description) \ 3706 code = hash_combine(code, LangOpts->Name); 3707 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3708 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3709 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3710 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3711 #include "clang/Basic/LangOptions.def" 3712 3713 for (StringRef Feature : LangOpts->ModuleFeatures) 3714 code = hash_combine(code, Feature); 3715 3716 // Extend the signature with the target options. 3717 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3718 TargetOpts->ABI); 3719 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3720 code = hash_combine(code, FeatureAsWritten); 3721 3722 // Extend the signature with preprocessor options. 3723 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3724 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3725 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3726 3727 for (const auto &I : getPreprocessorOpts().Macros) { 3728 // If we're supposed to ignore this macro for the purposes of modules, 3729 // don't put it into the hash. 3730 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3731 // Check whether we're ignoring this macro. 3732 StringRef MacroDef = I.first; 3733 if (hsOpts.ModulesIgnoreMacros.count( 3734 llvm::CachedHashString(MacroDef.split('=').first))) 3735 continue; 3736 } 3737 3738 code = hash_combine(code, I.first, I.second); 3739 } 3740 3741 // Extend the signature with the sysroot and other header search options. 3742 code = hash_combine(code, hsOpts.Sysroot, 3743 hsOpts.ModuleFormat, 3744 hsOpts.UseDebugInfo, 3745 hsOpts.UseBuiltinIncludes, 3746 hsOpts.UseStandardSystemIncludes, 3747 hsOpts.UseStandardCXXIncludes, 3748 hsOpts.UseLibcxx, 3749 hsOpts.ModulesValidateDiagnosticOptions); 3750 code = hash_combine(code, hsOpts.ResourceDir); 3751 3752 if (hsOpts.ModulesStrictContextHash) { 3753 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3754 hsOpts.SystemHeaderPrefixes.end()); 3755 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3756 hsOpts.UserEntries.end()); 3757 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3758 hsOpts.UserEntries.size(), UEC); 3759 3760 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3761 #define DIAGOPT(Name, Bits, Default) \ 3762 code = hash_combine(code, diagOpts.Name); 3763 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3764 code = hash_combine(code, diagOpts.get##Name()); 3765 #include "clang/Basic/DiagnosticOptions.def" 3766 #undef DIAGOPT 3767 #undef ENUM_DIAGOPT 3768 } 3769 3770 // Extend the signature with the user build path. 3771 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3772 3773 // Extend the signature with the module file extensions. 3774 const FrontendOptions &frontendOpts = getFrontendOpts(); 3775 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3776 code = ext->hashExtension(code); 3777 } 3778 3779 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3780 // affects the debug info in the PCM. 3781 if (getCodeGenOpts().DebugTypeExtRefs) 3782 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3783 code = hash_combine(code, KeyValue.first, KeyValue.second); 3784 3785 // Extend the signature with the enabled sanitizers, if at least one is 3786 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3787 SanitizerSet SanHash = LangOpts->Sanitize; 3788 SanHash.clear(getPPTransparentSanitizers()); 3789 if (!SanHash.empty()) 3790 code = hash_combine(code, SanHash.Mask); 3791 3792 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3793 } 3794 3795 namespace clang { 3796 3797 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3798 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3799 DiagnosticsEngine &Diags) { 3800 return createVFSFromCompilerInvocation(CI, Diags, 3801 llvm::vfs::getRealFileSystem()); 3802 } 3803 3804 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3805 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3806 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3807 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3808 return BaseFS; 3809 3810 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3811 // earlier vfs files are on the bottom 3812 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3813 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3814 Result->getBufferForFile(File); 3815 if (!Buffer) { 3816 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3817 continue; 3818 } 3819 3820 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3821 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3822 /*DiagContext*/ nullptr, Result); 3823 if (!FS) { 3824 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3825 continue; 3826 } 3827 3828 Result = FS; 3829 } 3830 return Result; 3831 } 3832 3833 } // namespace clang 3834