1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/LangStandard.h" 22 #include "clang/Basic/ObjCRuntime.h" 23 #include "clang/Basic/Sanitizers.h" 24 #include "clang/Basic/SourceLocation.h" 25 #include "clang/Basic/TargetOptions.h" 26 #include "clang/Basic/Version.h" 27 #include "clang/Basic/Visibility.h" 28 #include "clang/Basic/XRayInstr.h" 29 #include "clang/Config/config.h" 30 #include "clang/Driver/Driver.h" 31 #include "clang/Driver/DriverDiagnostic.h" 32 #include "clang/Driver/Options.h" 33 #include "clang/Frontend/CommandLineSourceLoc.h" 34 #include "clang/Frontend/DependencyOutputOptions.h" 35 #include "clang/Frontend/FrontendDiagnostic.h" 36 #include "clang/Frontend/FrontendOptions.h" 37 #include "clang/Frontend/FrontendPluginRegistry.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/Utils.h" 41 #include "clang/Lex/HeaderSearchOptions.h" 42 #include "clang/Lex/PreprocessorOptions.h" 43 #include "clang/Sema/CodeCompleteOptions.h" 44 #include "clang/Serialization/ASTBitCodes.h" 45 #include "clang/Serialization/ModuleFileExtension.h" 46 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 47 #include "llvm/ADT/APInt.h" 48 #include "llvm/ADT/ArrayRef.h" 49 #include "llvm/ADT/CachedHashString.h" 50 #include "llvm/ADT/FloatingPointMode.h" 51 #include "llvm/ADT/Hashing.h" 52 #include "llvm/ADT/None.h" 53 #include "llvm/ADT/Optional.h" 54 #include "llvm/ADT/SmallString.h" 55 #include "llvm/ADT/SmallVector.h" 56 #include "llvm/ADT/StringRef.h" 57 #include "llvm/ADT/StringSwitch.h" 58 #include "llvm/ADT/Triple.h" 59 #include "llvm/ADT/Twine.h" 60 #include "llvm/IR/DebugInfoMetadata.h" 61 #include "llvm/Linker/Linker.h" 62 #include "llvm/MC/MCTargetOptions.h" 63 #include "llvm/Option/Arg.h" 64 #include "llvm/Option/ArgList.h" 65 #include "llvm/Option/OptSpecifier.h" 66 #include "llvm/Option/OptTable.h" 67 #include "llvm/Option/Option.h" 68 #include "llvm/ProfileData/InstrProfReader.h" 69 #include "llvm/Support/CodeGen.h" 70 #include "llvm/Support/Compiler.h" 71 #include "llvm/Support/Error.h" 72 #include "llvm/Support/ErrorHandling.h" 73 #include "llvm/Support/ErrorOr.h" 74 #include "llvm/Support/FileSystem.h" 75 #include "llvm/Support/Host.h" 76 #include "llvm/Support/MathExtras.h" 77 #include "llvm/Support/MemoryBuffer.h" 78 #include "llvm/Support/Path.h" 79 #include "llvm/Support/Process.h" 80 #include "llvm/Support/Regex.h" 81 #include "llvm/Support/VersionTuple.h" 82 #include "llvm/Support/VirtualFileSystem.h" 83 #include "llvm/Support/raw_ostream.h" 84 #include "llvm/Target/TargetOptions.h" 85 #include <algorithm> 86 #include <atomic> 87 #include <cassert> 88 #include <cstddef> 89 #include <cstring> 90 #include <memory> 91 #include <string> 92 #include <tuple> 93 #include <utility> 94 #include <vector> 95 96 using namespace clang; 97 using namespace driver; 98 using namespace options; 99 using namespace llvm::opt; 100 101 //===----------------------------------------------------------------------===// 102 // Initialization. 103 //===----------------------------------------------------------------------===// 104 105 CompilerInvocationBase::CompilerInvocationBase() 106 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 107 DiagnosticOpts(new DiagnosticOptions()), 108 HeaderSearchOpts(new HeaderSearchOptions()), 109 PreprocessorOpts(new PreprocessorOptions()) {} 110 111 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 112 : LangOpts(new LangOptions(*X.getLangOpts())), 113 TargetOpts(new TargetOptions(X.getTargetOpts())), 114 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 115 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 116 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 117 118 CompilerInvocationBase::~CompilerInvocationBase() = default; 119 120 //===----------------------------------------------------------------------===// 121 // Deserialization (from args) 122 //===----------------------------------------------------------------------===// 123 124 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 125 DiagnosticsEngine &Diags) { 126 unsigned DefaultOpt = llvm::CodeGenOpt::None; 127 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 128 DefaultOpt = llvm::CodeGenOpt::Default; 129 130 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 131 if (A->getOption().matches(options::OPT_O0)) 132 return llvm::CodeGenOpt::None; 133 134 if (A->getOption().matches(options::OPT_Ofast)) 135 return llvm::CodeGenOpt::Aggressive; 136 137 assert(A->getOption().matches(options::OPT_O)); 138 139 StringRef S(A->getValue()); 140 if (S == "s" || S == "z" || S.empty()) 141 return llvm::CodeGenOpt::Default; 142 143 if (S == "g") 144 return llvm::CodeGenOpt::Less; 145 146 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 147 } 148 149 return DefaultOpt; 150 } 151 152 static unsigned getOptimizationLevelSize(ArgList &Args) { 153 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 154 if (A->getOption().matches(options::OPT_O)) { 155 switch (A->getValue()[0]) { 156 default: 157 return 0; 158 case 's': 159 return 1; 160 case 'z': 161 return 2; 162 } 163 } 164 } 165 return 0; 166 } 167 168 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 169 OptSpecifier GroupWithValue, 170 std::vector<std::string> &Diagnostics) { 171 for (auto *A : Args.filtered(Group)) { 172 if (A->getOption().getKind() == Option::FlagClass) { 173 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 174 // its name (minus the "W" or "R" at the beginning) to the warning list. 175 Diagnostics.push_back( 176 std::string(A->getOption().getName().drop_front(1))); 177 } else if (A->getOption().matches(GroupWithValue)) { 178 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 179 Diagnostics.push_back( 180 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 181 } else { 182 // Otherwise, add its value (for OPT_W_Joined and similar). 183 for (const auto *Arg : A->getValues()) 184 Diagnostics.emplace_back(Arg); 185 } 186 } 187 } 188 189 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 190 // it won't verify the input. 191 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 192 DiagnosticsEngine *Diags); 193 194 static void getAllNoBuiltinFuncValues(ArgList &Args, 195 std::vector<std::string> &Funcs) { 196 SmallVector<const char *, 8> Values; 197 for (const auto &Arg : Args) { 198 const Option &O = Arg->getOption(); 199 if (O.matches(options::OPT_fno_builtin_)) { 200 const char *FuncName = Arg->getValue(); 201 if (Builtin::Context::isBuiltinFunc(FuncName)) 202 Values.push_back(FuncName); 203 } 204 } 205 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 206 } 207 208 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 209 DiagnosticsEngine &Diags) { 210 bool Success = true; 211 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 212 StringRef Name = A->getValue(); 213 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 214 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 215 .Case(CMDFLAG, NAME##Model) 216 #include "clang/StaticAnalyzer/Core/Analyses.def" 217 .Default(NumStores); 218 if (Value == NumStores) { 219 Diags.Report(diag::err_drv_invalid_value) 220 << A->getAsString(Args) << Name; 221 Success = false; 222 } else { 223 Opts.AnalysisStoreOpt = Value; 224 } 225 } 226 227 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 228 StringRef Name = A->getValue(); 229 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 230 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 231 .Case(CMDFLAG, NAME##Model) 232 #include "clang/StaticAnalyzer/Core/Analyses.def" 233 .Default(NumConstraints); 234 if (Value == NumConstraints) { 235 Diags.Report(diag::err_drv_invalid_value) 236 << A->getAsString(Args) << Name; 237 Success = false; 238 } else { 239 Opts.AnalysisConstraintsOpt = Value; 240 } 241 } 242 243 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 244 StringRef Name = A->getValue(); 245 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 246 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 247 .Case(CMDFLAG, PD_##NAME) 248 #include "clang/StaticAnalyzer/Core/Analyses.def" 249 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 250 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 251 Diags.Report(diag::err_drv_invalid_value) 252 << A->getAsString(Args) << Name; 253 Success = false; 254 } else { 255 Opts.AnalysisDiagOpt = Value; 256 } 257 } 258 259 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 260 StringRef Name = A->getValue(); 261 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 262 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 263 .Case(CMDFLAG, NAME) 264 #include "clang/StaticAnalyzer/Core/Analyses.def" 265 .Default(NumPurgeModes); 266 if (Value == NumPurgeModes) { 267 Diags.Report(diag::err_drv_invalid_value) 268 << A->getAsString(Args) << Name; 269 Success = false; 270 } else { 271 Opts.AnalysisPurgeOpt = Value; 272 } 273 } 274 275 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 276 StringRef Name = A->getValue(); 277 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 278 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 279 .Case(CMDFLAG, NAME) 280 #include "clang/StaticAnalyzer/Core/Analyses.def" 281 .Default(NumInliningModes); 282 if (Value == NumInliningModes) { 283 Diags.Report(diag::err_drv_invalid_value) 284 << A->getAsString(Args) << Name; 285 Success = false; 286 } else { 287 Opts.InliningMode = Value; 288 } 289 } 290 291 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 292 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 293 Opts.ShowCheckerHelpDeveloper = 294 Args.hasArg(OPT_analyzer_checker_help_developer); 295 296 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 297 Opts.ShowCheckerOptionAlphaList = 298 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 299 Opts.ShowCheckerOptionDeveloperList = 300 Args.hasArg(OPT_analyzer_checker_option_help_developer); 301 302 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 303 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 304 Opts.ShouldEmitErrorsOnInvalidConfigValue = 305 /* negated */!llvm::StringSwitch<bool>( 306 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 307 .Case("true", true) 308 .Case("false", false) 309 .Default(false); 310 Opts.DisableAllCheckers = Args.hasArg(OPT_analyzer_disable_all_checks); 311 312 Opts.visualizeExplodedGraphWithGraphViz = 313 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 314 Opts.DumpExplodedGraphTo = 315 std::string(Args.getLastArgValue(OPT_analyzer_dump_egraph)); 316 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 317 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 318 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 319 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 320 Opts.AnalyzeNestedBlocks = 321 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 322 Opts.AnalyzeSpecificFunction = 323 std::string(Args.getLastArgValue(OPT_analyze_function)); 324 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 325 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 326 Opts.maxBlockVisitOnPath = 327 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 328 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 329 Opts.InlineMaxStackDepth = 330 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 331 Opts.InlineMaxStackDepth, Diags); 332 333 Opts.CheckersAndPackages.clear(); 334 for (const Arg *A : 335 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 336 A->claim(); 337 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 338 // We can have a list of comma separated checker names, e.g: 339 // '-analyzer-checker=cocoa,unix' 340 StringRef CheckerAndPackageList = A->getValue(); 341 SmallVector<StringRef, 16> CheckersAndPackages; 342 CheckerAndPackageList.split(CheckersAndPackages, ","); 343 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 344 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 345 IsEnabled); 346 } 347 348 // Go through the analyzer configuration options. 349 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 350 351 // We can have a list of comma separated config names, e.g: 352 // '-analyzer-config key1=val1,key2=val2' 353 StringRef configList = A->getValue(); 354 SmallVector<StringRef, 4> configVals; 355 configList.split(configVals, ","); 356 for (const auto &configVal : configVals) { 357 StringRef key, val; 358 std::tie(key, val) = configVal.split("="); 359 if (val.empty()) { 360 Diags.Report(SourceLocation(), 361 diag::err_analyzer_config_no_value) << configVal; 362 Success = false; 363 break; 364 } 365 if (val.find('=') != StringRef::npos) { 366 Diags.Report(SourceLocation(), 367 diag::err_analyzer_config_multiple_values) 368 << configVal; 369 Success = false; 370 break; 371 } 372 373 // TODO: Check checker options too, possibly in CheckerRegistry. 374 // Leave unknown non-checker configs unclaimed. 375 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 376 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 377 Diags.Report(diag::err_analyzer_config_unknown) << key; 378 continue; 379 } 380 381 A->claim(); 382 Opts.Config[key] = std::string(val); 383 } 384 } 385 386 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 387 parseAnalyzerConfigs(Opts, &Diags); 388 else 389 parseAnalyzerConfigs(Opts, nullptr); 390 391 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 392 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 393 if (i != 0) 394 os << " "; 395 os << Args.getArgString(i); 396 } 397 os.flush(); 398 399 return Success; 400 } 401 402 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 403 StringRef OptionName, StringRef DefaultVal) { 404 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 405 } 406 407 static void initOption(AnalyzerOptions::ConfigTable &Config, 408 DiagnosticsEngine *Diags, 409 StringRef &OptionField, StringRef Name, 410 StringRef DefaultVal) { 411 // String options may be known to invalid (e.g. if the expected string is a 412 // file name, but the file does not exist), those will have to be checked in 413 // parseConfigs. 414 OptionField = getStringOption(Config, Name, DefaultVal); 415 } 416 417 static void initOption(AnalyzerOptions::ConfigTable &Config, 418 DiagnosticsEngine *Diags, 419 bool &OptionField, StringRef Name, bool DefaultVal) { 420 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 421 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 422 .Case("true", true) 423 .Case("false", false) 424 .Default(None); 425 426 if (!PossiblyInvalidVal) { 427 if (Diags) 428 Diags->Report(diag::err_analyzer_config_invalid_input) 429 << Name << "a boolean"; 430 else 431 OptionField = DefaultVal; 432 } else 433 OptionField = PossiblyInvalidVal.getValue(); 434 } 435 436 static void initOption(AnalyzerOptions::ConfigTable &Config, 437 DiagnosticsEngine *Diags, 438 unsigned &OptionField, StringRef Name, 439 unsigned DefaultVal) { 440 441 OptionField = DefaultVal; 442 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 443 .getAsInteger(0, OptionField); 444 if (Diags && HasFailed) 445 Diags->Report(diag::err_analyzer_config_invalid_input) 446 << Name << "an unsigned"; 447 } 448 449 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 450 DiagnosticsEngine *Diags) { 451 // TODO: There's no need to store the entire configtable, it'd be plenty 452 // enough tostore checker options. 453 454 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 455 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 456 457 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 458 SHALLOW_VAL, DEEP_VAL) \ 459 switch (AnOpts.getUserMode()) { \ 460 case UMK_Shallow: \ 461 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 462 break; \ 463 case UMK_Deep: \ 464 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 465 break; \ 466 } \ 467 468 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 469 #undef ANALYZER_OPTION 470 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 471 472 // At this point, AnalyzerOptions is configured. Let's validate some options. 473 474 // FIXME: Here we try to validate the silenced checkers or packages are valid. 475 // The current approach only validates the registered checkers which does not 476 // contain the runtime enabled checkers and optimally we would validate both. 477 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 478 std::vector<StringRef> Checkers = 479 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 480 std::vector<StringRef> Packages = 481 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 482 483 SmallVector<StringRef, 16> CheckersAndPackages; 484 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 485 486 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 487 if (Diags) { 488 bool IsChecker = CheckerOrPackage.contains('.'); 489 bool IsValidName = 490 IsChecker 491 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 492 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 493 494 if (!IsValidName) 495 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 496 << CheckerOrPackage; 497 } 498 499 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 500 } 501 } 502 503 if (!Diags) 504 return; 505 506 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 507 Diags->Report(diag::err_analyzer_config_invalid_input) 508 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 509 510 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 511 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 512 << "a filename"; 513 514 if (!AnOpts.ModelPath.empty() && 515 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 516 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 517 << "a filename"; 518 } 519 520 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 521 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 522 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 523 return true; 524 } 525 526 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 527 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 528 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 529 } 530 531 static llvm::Reloc::Model getRelocModel(ArgList &Args, 532 DiagnosticsEngine &Diags) { 533 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 534 StringRef Value = A->getValue(); 535 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 536 .Case("static", llvm::Reloc::Static) 537 .Case("pic", llvm::Reloc::PIC_) 538 .Case("ropi", llvm::Reloc::ROPI) 539 .Case("rwpi", llvm::Reloc::RWPI) 540 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 541 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 542 .Default(None); 543 if (RM.hasValue()) 544 return *RM; 545 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 546 } 547 return llvm::Reloc::PIC_; 548 } 549 550 /// Create a new Regex instance out of the string value in \p RpassArg. 551 /// It returns a pointer to the newly generated Regex instance. 552 static std::shared_ptr<llvm::Regex> 553 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 554 Arg *RpassArg) { 555 StringRef Val = RpassArg->getValue(); 556 std::string RegexError; 557 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 558 if (!Pattern->isValid(RegexError)) { 559 Diags.Report(diag::err_drv_optimization_remark_pattern) 560 << RegexError << RpassArg->getAsString(Args); 561 Pattern.reset(); 562 } 563 return Pattern; 564 } 565 566 static bool parseDiagnosticLevelMask(StringRef FlagName, 567 const std::vector<std::string> &Levels, 568 DiagnosticsEngine *Diags, 569 DiagnosticLevelMask &M) { 570 bool Success = true; 571 for (const auto &Level : Levels) { 572 DiagnosticLevelMask const PM = 573 llvm::StringSwitch<DiagnosticLevelMask>(Level) 574 .Case("note", DiagnosticLevelMask::Note) 575 .Case("remark", DiagnosticLevelMask::Remark) 576 .Case("warning", DiagnosticLevelMask::Warning) 577 .Case("error", DiagnosticLevelMask::Error) 578 .Default(DiagnosticLevelMask::None); 579 if (PM == DiagnosticLevelMask::None) { 580 Success = false; 581 if (Diags) 582 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 583 } 584 M = M | PM; 585 } 586 return Success; 587 } 588 589 static void parseSanitizerKinds(StringRef FlagName, 590 const std::vector<std::string> &Sanitizers, 591 DiagnosticsEngine &Diags, SanitizerSet &S) { 592 for (const auto &Sanitizer : Sanitizers) { 593 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 594 if (K == SanitizerMask()) 595 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 596 else 597 S.set(K, true); 598 } 599 } 600 601 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 602 ArgList &Args, DiagnosticsEngine &D, 603 XRayInstrSet &S) { 604 llvm::SmallVector<StringRef, 2> BundleParts; 605 llvm::SplitString(Bundle, BundleParts, ","); 606 for (const auto &B : BundleParts) { 607 auto Mask = parseXRayInstrValue(B); 608 if (Mask == XRayInstrKind::None) 609 if (B != "none") 610 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 611 else 612 S.Mask = Mask; 613 else if (Mask == XRayInstrKind::All) 614 S.Mask = Mask; 615 else 616 S.set(Mask, true); 617 } 618 } 619 620 // Set the profile kind for fprofile-instrument. 621 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 622 DiagnosticsEngine &Diags) { 623 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 624 if (A == nullptr) 625 return; 626 StringRef S = A->getValue(); 627 unsigned I = llvm::StringSwitch<unsigned>(S) 628 .Case("none", CodeGenOptions::ProfileNone) 629 .Case("clang", CodeGenOptions::ProfileClangInstr) 630 .Case("llvm", CodeGenOptions::ProfileIRInstr) 631 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 632 .Default(~0U); 633 if (I == ~0U) { 634 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 635 << S; 636 return; 637 } 638 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 639 Opts.setProfileInstr(Instrumentor); 640 } 641 642 // Set the profile kind using fprofile-instrument-use-path. 643 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 644 const Twine &ProfileName) { 645 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 646 // In error, return silently and let Clang PGOUse report the error message. 647 if (auto E = ReaderOrErr.takeError()) { 648 llvm::consumeError(std::move(E)); 649 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 650 return; 651 } 652 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 653 std::move(ReaderOrErr.get()); 654 if (PGOReader->isIRLevelProfile()) { 655 if (PGOReader->hasCSIRLevelProfile()) 656 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 657 else 658 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 659 } else 660 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 661 } 662 663 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 664 DiagnosticsEngine &Diags, 665 const TargetOptions &TargetOpts, 666 const FrontendOptions &FrontendOpts) { 667 bool Success = true; 668 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 669 670 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 671 // TODO: This could be done in Driver 672 unsigned MaxOptLevel = 3; 673 if (OptimizationLevel > MaxOptLevel) { 674 // If the optimization level is not supported, fall back on the default 675 // optimization 676 Diags.Report(diag::warn_drv_optimization_value) 677 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 678 OptimizationLevel = MaxOptLevel; 679 } 680 Opts.OptimizationLevel = OptimizationLevel; 681 682 // At O0 we want to fully disable inlining outside of cases marked with 683 // 'alwaysinline' that are required for correctness. 684 Opts.setInlining((Opts.OptimizationLevel == 0) 685 ? CodeGenOptions::OnlyAlwaysInlining 686 : CodeGenOptions::NormalInlining); 687 // Explicit inlining flags can disable some or all inlining even at 688 // optimization levels above zero. 689 if (Arg *InlineArg = Args.getLastArg( 690 options::OPT_finline_functions, options::OPT_finline_hint_functions, 691 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 692 if (Opts.OptimizationLevel > 0) { 693 const Option &InlineOpt = InlineArg->getOption(); 694 if (InlineOpt.matches(options::OPT_finline_functions)) 695 Opts.setInlining(CodeGenOptions::NormalInlining); 696 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 697 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 698 else 699 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 700 } 701 } 702 703 Opts.ExperimentalNewPassManager = Args.hasFlag( 704 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 705 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 706 707 Opts.DebugPassManager = 708 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 709 /* Default */ false); 710 711 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 712 StringRef Name = A->getValue(); 713 if (Name == "Accelerate") 714 Opts.setVecLib(CodeGenOptions::Accelerate); 715 else if (Name == "MASSV") 716 Opts.setVecLib(CodeGenOptions::MASSV); 717 else if (Name == "SVML") 718 Opts.setVecLib(CodeGenOptions::SVML); 719 else if (Name == "none") 720 Opts.setVecLib(CodeGenOptions::NoLibrary); 721 else 722 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 723 } 724 725 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 726 unsigned Val = 727 llvm::StringSwitch<unsigned>(A->getValue()) 728 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 729 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 730 .Case("constructor", codegenoptions::DebugInfoConstructor) 731 .Case("limited", codegenoptions::LimitedDebugInfo) 732 .Case("standalone", codegenoptions::FullDebugInfo) 733 .Default(~0U); 734 if (Val == ~0U) 735 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 736 << A->getValue(); 737 else 738 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 739 } 740 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 741 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 742 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 743 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 744 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 745 .Default(~0U); 746 if (Val == ~0U) 747 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 748 << A->getValue(); 749 else 750 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 751 } 752 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 753 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 754 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 755 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 756 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 757 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 758 Opts.VirtualFunctionElimination = 759 Args.hasArg(OPT_fvirtual_function_elimination); 760 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 761 Opts.SplitDwarfFile = std::string(Args.getLastArgValue(OPT_split_dwarf_file)); 762 Opts.SplitDwarfOutput = 763 std::string(Args.getLastArgValue(OPT_split_dwarf_output)); 764 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 765 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 766 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 767 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 768 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 769 Opts.ForceDwarfFrameSection = Args.hasArg(OPT_fforce_dwarf_frame); 770 771 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 772 auto Split = StringRef(Arg).split('='); 773 Opts.DebugPrefixMap.insert( 774 {std::string(Split.first), std::string(Split.second)}); 775 } 776 777 if (const Arg *A = 778 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 779 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 780 781 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 782 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 783 784 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 785 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 786 llvm::Triple::arm, llvm::Triple::armeb}; 787 788 llvm::Triple T(TargetOpts.Triple); 789 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 790 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 791 Opts.EmitCallSiteInfo = true; 792 793 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 794 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 795 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 796 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 797 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 798 OPT_fuse_register_sized_bitfield_access); 799 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 800 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 801 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 802 Args.hasArg(OPT_new_struct_path_tbaa); 803 Opts.FineGrainedBitfieldAccesses = 804 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 805 OPT_fno_fine_grained_bitfield_accesses, false); 806 Opts.DwarfDebugFlags = 807 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 808 Opts.RecordCommandLine = 809 std::string(Args.getLastArgValue(OPT_record_command_line)); 810 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 811 Opts.NoCommon = !Args.hasArg(OPT_fcommon); 812 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables); 813 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 814 Opts.OptimizeSize = getOptimizationLevelSize(Args); 815 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 816 Args.hasArg(OPT_ffreestanding)); 817 if (Opts.SimplifyLibCalls) 818 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 819 Opts.UnrollLoops = 820 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 821 (Opts.OptimizationLevel > 1)); 822 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 823 824 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 825 Opts.CallGraphProfile = !Opts.DisableIntegratedAS; 826 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 827 Opts.SampleProfileFile = 828 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 829 Opts.DebugInfoForProfiling = Args.hasFlag( 830 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 831 Opts.DebugNameTable = static_cast<unsigned>( 832 Args.hasArg(OPT_ggnu_pubnames) 833 ? llvm::DICompileUnit::DebugNameTableKind::GNU 834 : Args.hasArg(OPT_gpubnames) 835 ? llvm::DICompileUnit::DebugNameTableKind::Default 836 : llvm::DICompileUnit::DebugNameTableKind::None); 837 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 838 839 setPGOInstrumentor(Opts, Args, Diags); 840 Opts.InstrProfileOutput = 841 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 842 Opts.ProfileInstrumentUsePath = 843 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 844 if (!Opts.ProfileInstrumentUsePath.empty()) 845 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 846 Opts.ProfileRemappingFile = 847 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 848 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 849 Diags.Report(diag::err_drv_argument_only_allowed_with) 850 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 851 << "-fexperimental-new-pass-manager"; 852 } 853 854 Opts.CoverageMapping = 855 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 856 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 857 Opts.AsmVerbose = !Args.hasArg(OPT_fno_verbose_asm); 858 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 859 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 860 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 861 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 862 Opts.RegisterGlobalDtorsWithAtExit = 863 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 864 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 865 Opts.CodeModel = TargetOpts.CodeModel; 866 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 867 868 // Handle -mframe-pointer option. 869 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 870 CodeGenOptions::FramePointerKind FP; 871 StringRef Name = A->getValue(); 872 bool ValidFP = true; 873 if (Name == "none") 874 FP = CodeGenOptions::FramePointerKind::None; 875 else if (Name == "non-leaf") 876 FP = CodeGenOptions::FramePointerKind::NonLeaf; 877 else if (Name == "all") 878 FP = CodeGenOptions::FramePointerKind::All; 879 else { 880 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 881 Success = false; 882 ValidFP = false; 883 } 884 if (ValidFP) 885 Opts.setFramePointer(FP); 886 } 887 888 Opts.DisableFree = Args.hasArg(OPT_disable_free); 889 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 890 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 891 Opts.NoEscapingBlockTailCalls = 892 Args.hasArg(OPT_fno_escaping_block_tail_calls); 893 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 894 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 895 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 896 Args.hasArg(OPT_cl_fast_relaxed_math); 897 Opts.LimitFloatPrecision = 898 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 899 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 900 Args.hasArg(OPT_cl_finite_math_only) || 901 Args.hasArg(OPT_cl_fast_relaxed_math)); 902 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 903 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 904 Args.hasArg(OPT_cl_finite_math_only) || 905 Args.hasArg(OPT_cl_fast_relaxed_math)); 906 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 907 Args.hasArg(OPT_cl_no_signed_zeros) || 908 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 909 Args.hasArg(OPT_cl_fast_relaxed_math)); 910 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 911 Opts.CorrectlyRoundedDivSqrt = 912 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 913 Opts.UniformWGSize = 914 Args.hasArg(OPT_cl_uniform_work_group_size); 915 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 916 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 917 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 918 Opts.StrictFloatCastOverflow = 919 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 920 921 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 922 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 923 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 924 Opts.SmallDataLimit = 925 getLastArgIntValue(Args, OPT_msmall_data_limit, 0, Diags); 926 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 927 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 928 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 929 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 930 Opts.IncrementalLinkerCompatible = 931 Args.hasArg(OPT_mincremental_linker_compatible); 932 Opts.PIECopyRelocations = 933 Args.hasArg(OPT_mpie_copy_relocations); 934 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 935 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 936 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 937 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 938 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 939 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 940 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 941 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 942 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 943 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 944 Args.hasArg(OPT_cl_fast_relaxed_math); 945 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 946 Opts.RelocationModel = getRelocModel(Args, Diags); 947 Opts.ThreadModel = 948 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 949 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 950 Diags.Report(diag::err_drv_invalid_value) 951 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 952 << Opts.ThreadModel; 953 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 954 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 955 956 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 957 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 958 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 959 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 960 Opts.UniqueInternalLinkageNames = 961 Args.hasArg(OPT_funique_internal_linkage_names); 962 963 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 964 965 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 966 967 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 968 969 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 970 971 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 972 Opts.PrepareForThinLTO = false; 973 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 974 StringRef S = A->getValue(); 975 if (S == "thin") 976 Opts.PrepareForThinLTO = true; 977 else if (S != "full") 978 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 979 } 980 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 981 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 982 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 983 if (IK.getLanguage() != Language::LLVM_IR) 984 Diags.Report(diag::err_drv_argument_only_allowed_with) 985 << A->getAsString(Args) << "-x ir"; 986 Opts.ThinLTOIndexFile = 987 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 988 } 989 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 990 Opts.SaveTempsFilePrefix = 991 llvm::StringSwitch<std::string>(A->getValue()) 992 .Case("obj", FrontendOpts.OutputFile) 993 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 994 995 Opts.ThinLinkBitcodeFile = 996 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 997 998 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 999 1000 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 1001 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 1002 1003 Opts.PreferVectorWidth = 1004 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1005 1006 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1007 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1008 1009 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1010 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1011 1012 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 1013 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1014 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1015 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1016 Opts.CoverageDataFile = 1017 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1018 Opts.CoverageNotesFile = 1019 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1020 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 1021 Opts.CoverageNoFunctionNamesInData = 1022 Args.hasArg(OPT_coverage_no_function_names_in_data); 1023 Opts.ProfileFilterFiles = 1024 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1025 Opts.ProfileExcludeFiles = 1026 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1027 Opts.CoverageExitBlockBeforeBody = 1028 Args.hasArg(OPT_coverage_exit_block_before_body); 1029 if (Args.hasArg(OPT_coverage_version_EQ)) { 1030 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1031 if (CoverageVersion.size() != 4) { 1032 Diags.Report(diag::err_drv_invalid_value) 1033 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1034 << CoverageVersion; 1035 } else { 1036 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1037 } 1038 } 1039 } 1040 // Handle -fembed-bitcode option. 1041 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1042 StringRef Name = A->getValue(); 1043 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1044 .Case("off", CodeGenOptions::Embed_Off) 1045 .Case("all", CodeGenOptions::Embed_All) 1046 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1047 .Case("marker", CodeGenOptions::Embed_Marker) 1048 .Default(~0U); 1049 if (Model == ~0U) { 1050 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1051 Success = false; 1052 } else 1053 Opts.setEmbedBitcode( 1054 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1055 } 1056 // FIXME: For backend options that are not yet recorded as function 1057 // attributes in the IR, keep track of them so we can embed them in a 1058 // separate data section and use them when building the bitcode. 1059 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1060 for (const auto &A : Args) { 1061 // Do not encode output and input. 1062 if (A->getOption().getID() == options::OPT_o || 1063 A->getOption().getID() == options::OPT_INPUT || 1064 A->getOption().getID() == options::OPT_x || 1065 A->getOption().getID() == options::OPT_fembed_bitcode || 1066 (A->getOption().getGroup().isValid() && 1067 A->getOption().getGroup().getID() == options::OPT_W_Group)) 1068 continue; 1069 ArgStringList ASL; 1070 A->render(Args, ASL); 1071 for (const auto &arg : ASL) { 1072 StringRef ArgStr(arg); 1073 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1074 // using \00 to separate each commandline options. 1075 Opts.CmdArgs.push_back('\0'); 1076 } 1077 } 1078 } 1079 1080 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1081 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1082 Opts.InstrumentFunctionsAfterInlining = 1083 Args.hasArg(OPT_finstrument_functions_after_inlining); 1084 Opts.InstrumentFunctionEntryBare = 1085 Args.hasArg(OPT_finstrument_function_entry_bare); 1086 1087 Opts.XRayInstrumentFunctions = 1088 Args.hasArg(OPT_fxray_instrument); 1089 Opts.XRayAlwaysEmitCustomEvents = 1090 Args.hasArg(OPT_fxray_always_emit_customevents); 1091 Opts.XRayAlwaysEmitTypedEvents = 1092 Args.hasArg(OPT_fxray_always_emit_typedevents); 1093 Opts.XRayInstructionThreshold = 1094 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1095 Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops); 1096 1097 auto XRayInstrBundles = 1098 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1099 if (XRayInstrBundles.empty()) 1100 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1101 else 1102 for (const auto &A : XRayInstrBundles) 1103 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1104 Diags, Opts.XRayInstrumentationBundle); 1105 1106 Opts.PatchableFunctionEntryCount = 1107 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1108 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1109 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1110 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1111 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1112 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1113 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1114 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1115 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1116 1117 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1118 StringRef Name = A->getValue(); 1119 if (Name == "full") { 1120 Opts.CFProtectionReturn = 1; 1121 Opts.CFProtectionBranch = 1; 1122 } else if (Name == "return") 1123 Opts.CFProtectionReturn = 1; 1124 else if (Name == "branch") 1125 Opts.CFProtectionBranch = 1; 1126 else if (Name != "none") { 1127 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1128 Success = false; 1129 } 1130 } 1131 1132 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1133 OPT_compress_debug_sections_EQ)) { 1134 if (A->getOption().getID() == OPT_compress_debug_sections) { 1135 // TODO: be more clever about the compression type auto-detection 1136 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1137 } else { 1138 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1139 .Case("none", llvm::DebugCompressionType::None) 1140 .Case("zlib", llvm::DebugCompressionType::Z) 1141 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1142 .Default(llvm::DebugCompressionType::None); 1143 Opts.setCompressDebugSections(DCT); 1144 } 1145 } 1146 1147 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1148 Opts.DebugCompilationDir = 1149 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1150 for (auto *A : 1151 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1152 CodeGenOptions::BitcodeFileToLink F; 1153 F.Filename = A->getValue(); 1154 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1155 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1156 // When linking CUDA bitcode, propagate function attributes so that 1157 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1158 F.PropagateAttrs = true; 1159 F.Internalize = true; 1160 } 1161 Opts.LinkBitcodeFiles.push_back(F); 1162 } 1163 Opts.SanitizeCoverageType = 1164 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1165 Opts.SanitizeCoverageIndirectCalls = 1166 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1167 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1168 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1169 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1170 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1171 Opts.SanitizeCoverage8bitCounters = 1172 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1173 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1174 Opts.SanitizeCoverageTracePCGuard = 1175 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1176 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1177 Opts.SanitizeCoverageInline8bitCounters = 1178 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1179 Opts.SanitizeCoverageInlineBoolFlag = 1180 Args.hasArg(OPT_fsanitize_coverage_inline_bool_flag); 1181 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1182 Opts.SanitizeCoverageStackDepth = 1183 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1184 Opts.SanitizeCoverageWhitelistFiles = 1185 Args.getAllArgValues(OPT_fsanitize_coverage_whitelist); 1186 Opts.SanitizeCoverageBlacklistFiles = 1187 Args.getAllArgValues(OPT_fsanitize_coverage_blacklist); 1188 Opts.SanitizeMemoryTrackOrigins = 1189 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1190 Opts.SanitizeMemoryUseAfterDtor = 1191 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1192 OPT_fno_sanitize_memory_use_after_dtor, 1193 false); 1194 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1195 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1196 Opts.SanitizeCfiICallGeneralizePointers = 1197 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1198 Opts.SanitizeCfiCanonicalJumpTables = 1199 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1200 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1201 if (Arg *A = Args.getLastArg( 1202 OPT_fsanitize_address_poison_custom_array_cookie, 1203 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1204 Opts.SanitizeAddressPoisonCustomArrayCookie = 1205 A->getOption().getID() == 1206 OPT_fsanitize_address_poison_custom_array_cookie; 1207 } 1208 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1209 OPT_fno_sanitize_address_use_after_scope)) { 1210 Opts.SanitizeAddressUseAfterScope = 1211 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1212 } 1213 Opts.SanitizeAddressGlobalsDeadStripping = 1214 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1215 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1216 OPT_fno_sanitize_address_use_odr_indicator)) { 1217 Opts.SanitizeAddressUseOdrIndicator = 1218 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1219 } 1220 Opts.SSPBufferSize = 1221 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1222 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1223 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1224 StringRef Val = A->getValue(); 1225 unsigned StackAlignment = Opts.StackAlignment; 1226 Val.getAsInteger(10, StackAlignment); 1227 Opts.StackAlignment = StackAlignment; 1228 } 1229 1230 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1231 StringRef Val = A->getValue(); 1232 unsigned StackProbeSize = Opts.StackProbeSize; 1233 Val.getAsInteger(0, StackProbeSize); 1234 Opts.StackProbeSize = StackProbeSize; 1235 } 1236 1237 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1238 1239 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1240 1241 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1242 StringRef Name = A->getValue(); 1243 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1244 .Case("legacy", CodeGenOptions::Legacy) 1245 .Case("non-legacy", CodeGenOptions::NonLegacy) 1246 .Case("mixed", CodeGenOptions::Mixed) 1247 .Default(~0U); 1248 if (Method == ~0U) { 1249 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1250 Success = false; 1251 } else { 1252 Opts.setObjCDispatchMethod( 1253 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1254 } 1255 } 1256 1257 1258 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1259 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1260 1261 if (Args.getLastArg(OPT_femulated_tls) || 1262 Args.getLastArg(OPT_fno_emulated_tls)) { 1263 Opts.ExplicitEmulatedTLS = true; 1264 Opts.EmulatedTLS = 1265 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1266 } 1267 1268 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1269 StringRef Name = A->getValue(); 1270 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1271 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1272 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1273 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1274 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1275 .Default(~0U); 1276 if (Model == ~0U) { 1277 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1278 Success = false; 1279 } else { 1280 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1281 } 1282 } 1283 1284 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1285 1286 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1287 StringRef Val = A->getValue(); 1288 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1289 if (!Opts.FPDenormalMode.isValid()) 1290 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1291 } 1292 1293 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1294 StringRef Val = A->getValue(); 1295 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1296 if (!Opts.FP32DenormalMode.isValid()) 1297 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1298 } 1299 1300 // X86_32 has -fppc-struct-return and -freg-struct-return. 1301 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1302 if (Arg *A = 1303 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1304 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1305 const Option &O = A->getOption(); 1306 if (O.matches(OPT_fpcc_struct_return) || 1307 O.matches(OPT_maix_struct_return)) { 1308 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1309 } else { 1310 assert(O.matches(OPT_freg_struct_return) || 1311 O.matches(OPT_msvr4_struct_return)); 1312 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1313 } 1314 } 1315 1316 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1317 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1318 bool NeedLocTracking = false; 1319 1320 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1321 if (!Opts.OptRecordFile.empty()) 1322 NeedLocTracking = true; 1323 1324 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1325 Opts.OptRecordPasses = A->getValue(); 1326 NeedLocTracking = true; 1327 } 1328 1329 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1330 Opts.OptRecordFormat = A->getValue(); 1331 NeedLocTracking = true; 1332 } 1333 1334 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1335 Opts.OptimizationRemarkPattern = 1336 GenerateOptimizationRemarkRegex(Diags, Args, A); 1337 NeedLocTracking = true; 1338 } 1339 1340 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1341 Opts.OptimizationRemarkMissedPattern = 1342 GenerateOptimizationRemarkRegex(Diags, Args, A); 1343 NeedLocTracking = true; 1344 } 1345 1346 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1347 Opts.OptimizationRemarkAnalysisPattern = 1348 GenerateOptimizationRemarkRegex(Diags, Args, A); 1349 NeedLocTracking = true; 1350 } 1351 1352 Opts.DiagnosticsWithHotness = 1353 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1354 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1355 bool UsingProfile = UsingSampleProfile || 1356 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1357 1358 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1359 // An IR file will contain PGO as metadata 1360 IK.getLanguage() != Language::LLVM_IR) 1361 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1362 << "-fdiagnostics-show-hotness"; 1363 1364 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1365 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1366 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1367 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1368 << "-fdiagnostics-hotness-threshold="; 1369 1370 // If the user requested to use a sample profile for PGO, then the 1371 // backend will need to track source location information so the profile 1372 // can be incorporated into the IR. 1373 if (UsingSampleProfile) 1374 NeedLocTracking = true; 1375 1376 // If the user requested a flag that requires source locations available in 1377 // the backend, make sure that the backend tracks source location information. 1378 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1379 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1380 1381 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1382 1383 // Parse -fsanitize-recover= arguments. 1384 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1385 parseSanitizerKinds("-fsanitize-recover=", 1386 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1387 Opts.SanitizeRecover); 1388 parseSanitizerKinds("-fsanitize-trap=", 1389 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1390 Opts.SanitizeTrap); 1391 1392 Opts.CudaGpuBinaryFileName = 1393 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1394 1395 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1396 1397 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1398 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1399 1400 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1401 1402 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1403 1404 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1405 1406 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1407 1408 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1409 1410 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1411 1412 Opts.SymbolPartition = 1413 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1414 1415 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1416 return Success; 1417 } 1418 1419 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1420 ArgList &Args) { 1421 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1422 Opts.Targets = Args.getAllArgValues(OPT_MT); 1423 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1424 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1425 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1426 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1427 Opts.HeaderIncludeOutputFile = 1428 std::string(Args.getLastArgValue(OPT_header_include_file)); 1429 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1430 if (Args.hasArg(OPT_show_includes)) { 1431 // Writing both /showIncludes and preprocessor output to stdout 1432 // would produce interleaved output, so use stderr for /showIncludes. 1433 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1434 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1435 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1436 else 1437 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1438 } else { 1439 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1440 } 1441 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1442 Opts.ModuleDependencyOutputDir = 1443 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1444 if (Args.hasArg(OPT_MV)) 1445 Opts.OutputFormat = DependencyOutputFormat::NMake; 1446 // Add sanitizer blacklists as extra dependencies. 1447 // They won't be discovered by the regular preprocessor, so 1448 // we let make / ninja to know about this implicit dependency. 1449 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1450 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1451 StringRef Val = A->getValue(); 1452 if (Val.find('=') == StringRef::npos) 1453 Opts.ExtraDeps.push_back(std::string(Val)); 1454 } 1455 if (Opts.IncludeSystemHeaders) { 1456 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1457 StringRef Val = A->getValue(); 1458 if (Val.find('=') == StringRef::npos) 1459 Opts.ExtraDeps.push_back(std::string(Val)); 1460 } 1461 } 1462 } 1463 1464 // Propagate the extra dependencies. 1465 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1466 Opts.ExtraDeps.push_back(A->getValue()); 1467 } 1468 1469 // Only the -fmodule-file=<file> form. 1470 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1471 StringRef Val = A->getValue(); 1472 if (Val.find('=') == StringRef::npos) 1473 Opts.ExtraDeps.push_back(std::string(Val)); 1474 } 1475 } 1476 1477 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1478 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1479 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1480 // Support both clang's -f[no-]color-diagnostics and gcc's 1481 // -f[no-]diagnostics-colors[=never|always|auto]. 1482 enum { 1483 Colors_On, 1484 Colors_Off, 1485 Colors_Auto 1486 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1487 for (auto *A : Args) { 1488 const Option &O = A->getOption(); 1489 if (O.matches(options::OPT_fcolor_diagnostics) || 1490 O.matches(options::OPT_fdiagnostics_color)) { 1491 ShowColors = Colors_On; 1492 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1493 O.matches(options::OPT_fno_diagnostics_color)) { 1494 ShowColors = Colors_Off; 1495 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1496 StringRef Value(A->getValue()); 1497 if (Value == "always") 1498 ShowColors = Colors_On; 1499 else if (Value == "never") 1500 ShowColors = Colors_Off; 1501 else if (Value == "auto") 1502 ShowColors = Colors_Auto; 1503 } 1504 } 1505 return ShowColors == Colors_On || 1506 (ShowColors == Colors_Auto && 1507 llvm::sys::Process::StandardErrHasColors()); 1508 } 1509 1510 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1511 DiagnosticsEngine *Diags) { 1512 bool Success = true; 1513 for (const auto &Prefix : VerifyPrefixes) { 1514 // Every prefix must start with a letter and contain only alphanumeric 1515 // characters, hyphens, and underscores. 1516 auto BadChar = llvm::find_if(Prefix, [](char C) { 1517 return !isAlphanumeric(C) && C != '-' && C != '_'; 1518 }); 1519 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1520 Success = false; 1521 if (Diags) { 1522 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1523 Diags->Report(diag::note_drv_verify_prefix_spelling); 1524 } 1525 } 1526 } 1527 return Success; 1528 } 1529 1530 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1531 DiagnosticsEngine *Diags, 1532 bool DefaultDiagColor) { 1533 bool Success = true; 1534 1535 Opts.DiagnosticLogFile = 1536 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1537 if (Arg *A = 1538 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1539 Opts.DiagnosticSerializationFile = A->getValue(); 1540 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1541 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1542 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1543 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1544 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1545 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1546 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1547 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1548 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1549 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1550 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1551 1552 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1553 1554 // Default behavior is to not to show note include stacks. 1555 Opts.ShowNoteIncludeStack = false; 1556 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1557 OPT_fno_diagnostics_show_note_include_stack)) 1558 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1559 Opts.ShowNoteIncludeStack = true; 1560 1561 StringRef ShowOverloads = 1562 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1563 if (ShowOverloads == "best") 1564 Opts.setShowOverloads(Ovl_Best); 1565 else if (ShowOverloads == "all") 1566 Opts.setShowOverloads(Ovl_All); 1567 else { 1568 Success = false; 1569 if (Diags) 1570 Diags->Report(diag::err_drv_invalid_value) 1571 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1572 << ShowOverloads; 1573 } 1574 1575 StringRef ShowCategory = 1576 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1577 if (ShowCategory == "none") 1578 Opts.ShowCategories = 0; 1579 else if (ShowCategory == "id") 1580 Opts.ShowCategories = 1; 1581 else if (ShowCategory == "name") 1582 Opts.ShowCategories = 2; 1583 else { 1584 Success = false; 1585 if (Diags) 1586 Diags->Report(diag::err_drv_invalid_value) 1587 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1588 << ShowCategory; 1589 } 1590 1591 StringRef Format = 1592 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1593 if (Format == "clang") 1594 Opts.setFormat(DiagnosticOptions::Clang); 1595 else if (Format == "msvc") 1596 Opts.setFormat(DiagnosticOptions::MSVC); 1597 else if (Format == "msvc-fallback") { 1598 Opts.setFormat(DiagnosticOptions::MSVC); 1599 Opts.CLFallbackMode = true; 1600 } else if (Format == "vi") 1601 Opts.setFormat(DiagnosticOptions::Vi); 1602 else { 1603 Success = false; 1604 if (Diags) 1605 Diags->Report(diag::err_drv_invalid_value) 1606 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1607 << Format; 1608 } 1609 1610 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1611 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1612 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1613 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1614 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1615 if (Args.hasArg(OPT_verify)) 1616 Opts.VerifyPrefixes.push_back("expected"); 1617 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1618 // then sort it to prepare for fast lookup using std::binary_search. 1619 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1620 Opts.VerifyDiagnostics = false; 1621 Success = false; 1622 } 1623 else 1624 llvm::sort(Opts.VerifyPrefixes); 1625 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1626 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1627 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1628 Diags, DiagMask); 1629 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1630 DiagMask = DiagnosticLevelMask::All; 1631 Opts.setVerifyIgnoreUnexpected(DiagMask); 1632 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1633 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1634 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1635 Opts.MacroBacktraceLimit = 1636 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1637 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1638 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1639 Args, OPT_ftemplate_backtrace_limit, 1640 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1641 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1642 Args, OPT_fconstexpr_backtrace_limit, 1643 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1644 Opts.SpellCheckingLimit = getLastArgIntValue( 1645 Args, OPT_fspell_checking_limit, 1646 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1647 Opts.SnippetLineLimit = getLastArgIntValue( 1648 Args, OPT_fcaret_diagnostics_max_lines, 1649 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1650 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1651 DiagnosticOptions::DefaultTabStop, Diags); 1652 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1653 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1654 if (Diags) 1655 Diags->Report(diag::warn_ignoring_ftabstop_value) 1656 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1657 } 1658 Opts.MessageLength = 1659 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1660 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1661 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1662 1663 return Success; 1664 } 1665 1666 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1667 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1668 } 1669 1670 /// Parse the argument to the -ftest-module-file-extension 1671 /// command-line argument. 1672 /// 1673 /// \returns true on error, false on success. 1674 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1675 std::string &BlockName, 1676 unsigned &MajorVersion, 1677 unsigned &MinorVersion, 1678 bool &Hashed, 1679 std::string &UserInfo) { 1680 SmallVector<StringRef, 5> Args; 1681 Arg.split(Args, ':', 5); 1682 if (Args.size() < 5) 1683 return true; 1684 1685 BlockName = std::string(Args[0]); 1686 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1687 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1688 if (Args[3].getAsInteger(2, Hashed)) return true; 1689 if (Args.size() > 4) 1690 UserInfo = std::string(Args[4]); 1691 return false; 1692 } 1693 1694 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1695 DiagnosticsEngine &Diags, 1696 bool &IsHeaderFile) { 1697 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1698 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1699 switch (A->getOption().getID()) { 1700 default: 1701 llvm_unreachable("Invalid option in group!"); 1702 case OPT_ast_list: 1703 Opts.ProgramAction = frontend::ASTDeclList; break; 1704 case OPT_ast_dump_all_EQ: 1705 case OPT_ast_dump_EQ: { 1706 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1707 .CaseLower("default", ADOF_Default) 1708 .CaseLower("json", ADOF_JSON) 1709 .Default(std::numeric_limits<unsigned>::max()); 1710 1711 if (Val != std::numeric_limits<unsigned>::max()) 1712 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1713 else { 1714 Diags.Report(diag::err_drv_invalid_value) 1715 << A->getAsString(Args) << A->getValue(); 1716 Opts.ASTDumpFormat = ADOF_Default; 1717 } 1718 LLVM_FALLTHROUGH; 1719 } 1720 case OPT_ast_dump: 1721 case OPT_ast_dump_all: 1722 case OPT_ast_dump_lookups: 1723 Opts.ProgramAction = frontend::ASTDump; break; 1724 case OPT_ast_print: 1725 Opts.ProgramAction = frontend::ASTPrint; break; 1726 case OPT_ast_view: 1727 Opts.ProgramAction = frontend::ASTView; break; 1728 case OPT_compiler_options_dump: 1729 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1730 case OPT_dump_raw_tokens: 1731 Opts.ProgramAction = frontend::DumpRawTokens; break; 1732 case OPT_dump_tokens: 1733 Opts.ProgramAction = frontend::DumpTokens; break; 1734 case OPT_S: 1735 Opts.ProgramAction = frontend::EmitAssembly; break; 1736 case OPT_emit_llvm_bc: 1737 Opts.ProgramAction = frontend::EmitBC; break; 1738 case OPT_emit_html: 1739 Opts.ProgramAction = frontend::EmitHTML; break; 1740 case OPT_emit_llvm: 1741 Opts.ProgramAction = frontend::EmitLLVM; break; 1742 case OPT_emit_llvm_only: 1743 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1744 case OPT_emit_codegen_only: 1745 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1746 case OPT_emit_obj: 1747 Opts.ProgramAction = frontend::EmitObj; break; 1748 case OPT_fixit_EQ: 1749 Opts.FixItSuffix = A->getValue(); 1750 LLVM_FALLTHROUGH; 1751 case OPT_fixit: 1752 Opts.ProgramAction = frontend::FixIt; break; 1753 case OPT_emit_module: 1754 Opts.ProgramAction = frontend::GenerateModule; break; 1755 case OPT_emit_module_interface: 1756 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1757 case OPT_emit_header_module: 1758 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1759 case OPT_emit_pch: 1760 Opts.ProgramAction = frontend::GeneratePCH; break; 1761 case OPT_emit_interface_stubs: { 1762 StringRef ArgStr = 1763 Args.hasArg(OPT_interface_stub_version_EQ) 1764 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1765 : "experimental-ifs-v2"; 1766 if (ArgStr == "experimental-yaml-elf-v1" || 1767 ArgStr == "experimental-ifs-v1" || 1768 ArgStr == "experimental-tapi-elf-v1") { 1769 std::string ErrorMessage = 1770 "Invalid interface stub format: " + ArgStr.str() + 1771 " is deprecated."; 1772 Diags.Report(diag::err_drv_invalid_value) 1773 << "Must specify a valid interface stub format type, ie: " 1774 "-interface-stub-version=experimental-ifs-v2" 1775 << ErrorMessage; 1776 } else if (!ArgStr.startswith("experimental-ifs-")) { 1777 std::string ErrorMessage = 1778 "Invalid interface stub format: " + ArgStr.str() + "."; 1779 Diags.Report(diag::err_drv_invalid_value) 1780 << "Must specify a valid interface stub format type, ie: " 1781 "-interface-stub-version=experimental-ifs-v2" 1782 << ErrorMessage; 1783 } else { 1784 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1785 } 1786 break; 1787 } 1788 case OPT_init_only: 1789 Opts.ProgramAction = frontend::InitOnly; break; 1790 case OPT_fsyntax_only: 1791 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1792 case OPT_module_file_info: 1793 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1794 case OPT_verify_pch: 1795 Opts.ProgramAction = frontend::VerifyPCH; break; 1796 case OPT_print_preamble: 1797 Opts.ProgramAction = frontend::PrintPreamble; break; 1798 case OPT_E: 1799 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1800 case OPT_templight_dump: 1801 Opts.ProgramAction = frontend::TemplightDump; break; 1802 case OPT_rewrite_macros: 1803 Opts.ProgramAction = frontend::RewriteMacros; break; 1804 case OPT_rewrite_objc: 1805 Opts.ProgramAction = frontend::RewriteObjC; break; 1806 case OPT_rewrite_test: 1807 Opts.ProgramAction = frontend::RewriteTest; break; 1808 case OPT_analyze: 1809 Opts.ProgramAction = frontend::RunAnalysis; break; 1810 case OPT_migrate: 1811 Opts.ProgramAction = frontend::MigrateSource; break; 1812 case OPT_Eonly: 1813 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1814 case OPT_print_dependency_directives_minimized_source: 1815 Opts.ProgramAction = 1816 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1817 break; 1818 } 1819 } 1820 1821 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1822 Opts.Plugins.emplace_back(A->getValue(0)); 1823 Opts.ProgramAction = frontend::PluginAction; 1824 Opts.ActionName = A->getValue(); 1825 } 1826 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1827 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1828 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1829 1830 for (const std::string &Arg : 1831 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1832 std::string BlockName; 1833 unsigned MajorVersion; 1834 unsigned MinorVersion; 1835 bool Hashed; 1836 std::string UserInfo; 1837 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1838 MinorVersion, Hashed, UserInfo)) { 1839 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1840 1841 continue; 1842 } 1843 1844 // Add the testing module file extension. 1845 Opts.ModuleFileExtensions.push_back( 1846 std::make_shared<TestModuleFileExtension>( 1847 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1848 } 1849 1850 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1851 Opts.CodeCompletionAt = 1852 ParsedSourceLocation::FromString(A->getValue()); 1853 if (Opts.CodeCompletionAt.FileName.empty()) 1854 Diags.Report(diag::err_drv_invalid_value) 1855 << A->getAsString(Args) << A->getValue(); 1856 } 1857 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1858 1859 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1860 Opts.Plugins = Args.getAllArgValues(OPT_load); 1861 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1862 Opts.ShowHelp = Args.hasArg(OPT_help); 1863 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1864 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1865 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1866 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1867 Opts.TimeTraceGranularity = getLastArgIntValue( 1868 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1869 Opts.ShowVersion = Args.hasArg(OPT_version); 1870 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1871 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1872 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1873 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1874 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1875 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1876 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1877 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1878 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1879 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1880 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1881 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1882 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1883 // Only the -fmodule-file=<file> form. 1884 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1885 StringRef Val = A->getValue(); 1886 if (Val.find('=') == StringRef::npos) 1887 Opts.ModuleFiles.push_back(std::string(Val)); 1888 } 1889 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1890 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1891 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1892 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1893 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 1894 1895 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1896 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1897 << "-emit-module"; 1898 1899 Opts.CodeCompleteOpts.IncludeMacros 1900 = Args.hasArg(OPT_code_completion_macros); 1901 Opts.CodeCompleteOpts.IncludeCodePatterns 1902 = Args.hasArg(OPT_code_completion_patterns); 1903 Opts.CodeCompleteOpts.IncludeGlobals 1904 = !Args.hasArg(OPT_no_code_completion_globals); 1905 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1906 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1907 Opts.CodeCompleteOpts.IncludeBriefComments 1908 = Args.hasArg(OPT_code_completion_brief_comments); 1909 Opts.CodeCompleteOpts.IncludeFixIts 1910 = Args.hasArg(OPT_code_completion_with_fixits); 1911 1912 Opts.OverrideRecordLayoutsFile = 1913 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1914 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1915 if (Args.hasArg(OPT_aux_target_cpu)) 1916 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1917 if (Args.hasArg(OPT_aux_target_feature)) 1918 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1919 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1920 1921 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1922 OPT_arcmt_modify, 1923 OPT_arcmt_migrate)) { 1924 switch (A->getOption().getID()) { 1925 default: 1926 llvm_unreachable("missed a case"); 1927 case OPT_arcmt_check: 1928 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1929 break; 1930 case OPT_arcmt_modify: 1931 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1932 break; 1933 case OPT_arcmt_migrate: 1934 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1935 break; 1936 } 1937 } 1938 Opts.MTMigrateDir = 1939 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1940 Opts.ARCMTMigrateReportOut = 1941 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1942 Opts.ARCMTMigrateEmitARCErrors 1943 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1944 1945 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1946 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1947 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1948 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1949 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1950 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1951 if (Args.hasArg(OPT_objcmt_migrate_property)) 1952 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1953 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1954 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1955 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1956 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1957 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1958 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1959 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1960 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1961 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1962 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1963 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1964 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1965 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1966 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1967 if (Args.hasArg(OPT_objcmt_atomic_property)) 1968 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1969 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1970 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1971 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1972 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1973 if (Args.hasArg(OPT_objcmt_migrate_all)) 1974 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1975 1976 Opts.ObjCMTWhiteListPath = 1977 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 1978 1979 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1980 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1981 Diags.Report(diag::err_drv_argument_not_allowed_with) 1982 << "ARC migration" << "ObjC migration"; 1983 } 1984 1985 InputKind DashX(Language::Unknown); 1986 if (const Arg *A = Args.getLastArg(OPT_x)) { 1987 StringRef XValue = A->getValue(); 1988 1989 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1990 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1991 bool Preprocessed = XValue.consume_back("-cpp-output"); 1992 bool ModuleMap = XValue.consume_back("-module-map"); 1993 IsHeaderFile = 1994 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1995 1996 // Principal languages. 1997 DashX = llvm::StringSwitch<InputKind>(XValue) 1998 .Case("c", Language::C) 1999 .Case("cl", Language::OpenCL) 2000 .Case("cuda", Language::CUDA) 2001 .Case("hip", Language::HIP) 2002 .Case("c++", Language::CXX) 2003 .Case("objective-c", Language::ObjC) 2004 .Case("objective-c++", Language::ObjCXX) 2005 .Case("renderscript", Language::RenderScript) 2006 .Default(Language::Unknown); 2007 2008 // "objc[++]-cpp-output" is an acceptable synonym for 2009 // "objective-c[++]-cpp-output". 2010 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2011 DashX = llvm::StringSwitch<InputKind>(XValue) 2012 .Case("objc", Language::ObjC) 2013 .Case("objc++", Language::ObjCXX) 2014 .Default(Language::Unknown); 2015 2016 // Some special cases cannot be combined with suffixes. 2017 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2018 DashX = llvm::StringSwitch<InputKind>(XValue) 2019 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2020 .Case("assembler-with-cpp", Language::Asm) 2021 .Cases("ast", "pcm", 2022 InputKind(Language::Unknown, InputKind::Precompiled)) 2023 .Case("ir", Language::LLVM_IR) 2024 .Default(Language::Unknown); 2025 2026 if (DashX.isUnknown()) 2027 Diags.Report(diag::err_drv_invalid_value) 2028 << A->getAsString(Args) << A->getValue(); 2029 2030 if (Preprocessed) 2031 DashX = DashX.getPreprocessed(); 2032 if (ModuleMap) 2033 DashX = DashX.withFormat(InputKind::ModuleMap); 2034 } 2035 2036 // '-' is the default input if none is given. 2037 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2038 Opts.Inputs.clear(); 2039 if (Inputs.empty()) 2040 Inputs.push_back("-"); 2041 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2042 InputKind IK = DashX; 2043 if (IK.isUnknown()) { 2044 IK = FrontendOptions::getInputKindForExtension( 2045 StringRef(Inputs[i]).rsplit('.').second); 2046 // FIXME: Warn on this? 2047 if (IK.isUnknown()) 2048 IK = Language::C; 2049 // FIXME: Remove this hack. 2050 if (i == 0) 2051 DashX = IK; 2052 } 2053 2054 bool IsSystem = false; 2055 2056 // The -emit-module action implicitly takes a module map. 2057 if (Opts.ProgramAction == frontend::GenerateModule && 2058 IK.getFormat() == InputKind::Source) { 2059 IK = IK.withFormat(InputKind::ModuleMap); 2060 IsSystem = Opts.IsSystemModule; 2061 } 2062 2063 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2064 } 2065 2066 return DashX; 2067 } 2068 2069 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2070 void *MainAddr) { 2071 std::string ClangExecutable = 2072 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2073 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2074 } 2075 2076 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2077 const std::string &WorkingDir) { 2078 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2079 Opts.Verbose = Args.hasArg(OPT_v); 2080 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2081 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2082 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2083 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2084 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2085 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2086 2087 // Canonicalize -fmodules-cache-path before storing it. 2088 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2089 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2090 if (WorkingDir.empty()) 2091 llvm::sys::fs::make_absolute(P); 2092 else 2093 llvm::sys::fs::make_absolute(WorkingDir, P); 2094 } 2095 llvm::sys::path::remove_dots(P); 2096 Opts.ModuleCachePath = std::string(P.str()); 2097 2098 Opts.ModuleUserBuildPath = 2099 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2100 // Only the -fmodule-file=<name>=<file> form. 2101 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2102 StringRef Val = A->getValue(); 2103 if (Val.find('=') != StringRef::npos){ 2104 auto Split = Val.split('='); 2105 Opts.PrebuiltModuleFiles.insert( 2106 {std::string(Split.first), std::string(Split.second)}); 2107 } 2108 } 2109 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2110 Opts.AddPrebuiltModulePath(A->getValue()); 2111 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2112 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2113 Opts.ModulesStrictContextHash = Args.hasArg(OPT_fmodules_strict_context_hash); 2114 Opts.ModulesValidateDiagnosticOptions = 2115 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2116 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2117 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2118 Opts.ModuleCachePruneInterval = 2119 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2120 Opts.ModuleCachePruneAfter = 2121 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2122 Opts.ModulesValidateOncePerBuildSession = 2123 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2124 Opts.BuildSessionTimestamp = 2125 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2126 Opts.ModulesValidateSystemHeaders = 2127 Args.hasArg(OPT_fmodules_validate_system_headers); 2128 Opts.ValidateASTInputFilesContent = 2129 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2130 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2131 Opts.ModuleFormat = A->getValue(); 2132 2133 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2134 StringRef MacroDef = A->getValue(); 2135 Opts.ModulesIgnoreMacros.insert( 2136 llvm::CachedHashString(MacroDef.split('=').first)); 2137 } 2138 2139 // Add -I..., -F..., and -index-header-map options in order. 2140 bool IsIndexHeaderMap = false; 2141 bool IsSysrootSpecified = 2142 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2143 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2144 if (A->getOption().matches(OPT_index_header_map)) { 2145 // -index-header-map applies to the next -I or -F. 2146 IsIndexHeaderMap = true; 2147 continue; 2148 } 2149 2150 frontend::IncludeDirGroup Group = 2151 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2152 2153 bool IsFramework = A->getOption().matches(OPT_F); 2154 std::string Path = A->getValue(); 2155 2156 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2157 SmallString<32> Buffer; 2158 llvm::sys::path::append(Buffer, Opts.Sysroot, 2159 llvm::StringRef(A->getValue()).substr(1)); 2160 Path = std::string(Buffer.str()); 2161 } 2162 2163 Opts.AddPath(Path, Group, IsFramework, 2164 /*IgnoreSysroot*/ true); 2165 IsIndexHeaderMap = false; 2166 } 2167 2168 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2169 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2170 for (const auto *A : 2171 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2172 if (A->getOption().matches(OPT_iprefix)) 2173 Prefix = A->getValue(); 2174 else if (A->getOption().matches(OPT_iwithprefix)) 2175 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2176 else 2177 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2178 } 2179 2180 for (const auto *A : Args.filtered(OPT_idirafter)) 2181 Opts.AddPath(A->getValue(), frontend::After, false, true); 2182 for (const auto *A : Args.filtered(OPT_iquote)) 2183 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2184 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2185 Opts.AddPath(A->getValue(), frontend::System, false, 2186 !A->getOption().matches(OPT_iwithsysroot)); 2187 for (const auto *A : Args.filtered(OPT_iframework)) 2188 Opts.AddPath(A->getValue(), frontend::System, true, true); 2189 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2190 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2191 /*IgnoreSysRoot=*/false); 2192 2193 // Add the paths for the various language specific isystem flags. 2194 for (const auto *A : Args.filtered(OPT_c_isystem)) 2195 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2196 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2197 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2198 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2199 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2200 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2201 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2202 2203 // Add the internal paths from a driver that detects standard include paths. 2204 for (const auto *A : 2205 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2206 frontend::IncludeDirGroup Group = frontend::System; 2207 if (A->getOption().matches(OPT_internal_externc_isystem)) 2208 Group = frontend::ExternCSystem; 2209 Opts.AddPath(A->getValue(), Group, false, true); 2210 } 2211 2212 // Add the path prefixes which are implicitly treated as being system headers. 2213 for (const auto *A : 2214 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2215 Opts.AddSystemHeaderPrefix( 2216 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2217 2218 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2219 Opts.AddVFSOverlayFile(A->getValue()); 2220 } 2221 2222 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2223 const llvm::Triple &T, 2224 PreprocessorOptions &PPOpts, 2225 LangStandard::Kind LangStd) { 2226 // Set some properties which depend solely on the input kind; it would be nice 2227 // to move these to the language standard, and have the driver resolve the 2228 // input kind + language standard. 2229 // 2230 // FIXME: Perhaps a better model would be for a single source file to have 2231 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2232 // simultaneously active? 2233 if (IK.getLanguage() == Language::Asm) { 2234 Opts.AsmPreprocessor = 1; 2235 } else if (IK.isObjectiveC()) { 2236 Opts.ObjC = 1; 2237 } 2238 2239 if (LangStd == LangStandard::lang_unspecified) { 2240 // Based on the base language, pick one. 2241 switch (IK.getLanguage()) { 2242 case Language::Unknown: 2243 case Language::LLVM_IR: 2244 llvm_unreachable("Invalid input kind!"); 2245 case Language::OpenCL: 2246 LangStd = LangStandard::lang_opencl10; 2247 break; 2248 case Language::CUDA: 2249 LangStd = LangStandard::lang_cuda; 2250 break; 2251 case Language::Asm: 2252 case Language::C: 2253 #if defined(CLANG_DEFAULT_STD_C) 2254 LangStd = CLANG_DEFAULT_STD_C; 2255 #else 2256 // The PS4 uses C99 as the default C standard. 2257 if (T.isPS4()) 2258 LangStd = LangStandard::lang_gnu99; 2259 else 2260 LangStd = LangStandard::lang_gnu17; 2261 #endif 2262 break; 2263 case Language::ObjC: 2264 #if defined(CLANG_DEFAULT_STD_C) 2265 LangStd = CLANG_DEFAULT_STD_C; 2266 #else 2267 LangStd = LangStandard::lang_gnu11; 2268 #endif 2269 break; 2270 case Language::CXX: 2271 case Language::ObjCXX: 2272 #if defined(CLANG_DEFAULT_STD_CXX) 2273 LangStd = CLANG_DEFAULT_STD_CXX; 2274 #else 2275 LangStd = LangStandard::lang_gnucxx14; 2276 #endif 2277 break; 2278 case Language::RenderScript: 2279 LangStd = LangStandard::lang_c99; 2280 break; 2281 case Language::HIP: 2282 LangStd = LangStandard::lang_hip; 2283 break; 2284 } 2285 } 2286 2287 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2288 Opts.LineComment = Std.hasLineComments(); 2289 Opts.C99 = Std.isC99(); 2290 Opts.C11 = Std.isC11(); 2291 Opts.C17 = Std.isC17(); 2292 Opts.C2x = Std.isC2x(); 2293 Opts.CPlusPlus = Std.isCPlusPlus(); 2294 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2295 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2296 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2297 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 2298 Opts.Digraphs = Std.hasDigraphs(); 2299 Opts.GNUMode = Std.isGNUMode(); 2300 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2301 Opts.GNUCVersion = 0; 2302 Opts.HexFloats = Std.hasHexFloats(); 2303 Opts.ImplicitInt = Std.hasImplicitInt(); 2304 2305 // Set OpenCL Version. 2306 Opts.OpenCL = Std.isOpenCL(); 2307 if (LangStd == LangStandard::lang_opencl10) 2308 Opts.OpenCLVersion = 100; 2309 else if (LangStd == LangStandard::lang_opencl11) 2310 Opts.OpenCLVersion = 110; 2311 else if (LangStd == LangStandard::lang_opencl12) 2312 Opts.OpenCLVersion = 120; 2313 else if (LangStd == LangStandard::lang_opencl20) 2314 Opts.OpenCLVersion = 200; 2315 else if (LangStd == LangStandard::lang_openclcpp) 2316 Opts.OpenCLCPlusPlusVersion = 100; 2317 2318 // OpenCL has some additional defaults. 2319 if (Opts.OpenCL) { 2320 Opts.AltiVec = 0; 2321 Opts.ZVector = 0; 2322 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2323 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2324 Opts.NativeHalfType = 1; 2325 Opts.NativeHalfArgsAndReturns = 1; 2326 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2327 2328 // Include default header file for OpenCL. 2329 if (Opts.IncludeDefaultHeader) { 2330 if (Opts.DeclareOpenCLBuiltins) { 2331 // Only include base header file for builtin types and constants. 2332 PPOpts.Includes.push_back("opencl-c-base.h"); 2333 } else { 2334 PPOpts.Includes.push_back("opencl-c.h"); 2335 } 2336 } 2337 } 2338 2339 Opts.HIP = IK.getLanguage() == Language::HIP; 2340 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2341 if (Opts.CUDA) 2342 // Set default FP_CONTRACT to FAST. 2343 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2344 2345 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2346 if (Opts.RenderScript) { 2347 Opts.NativeHalfType = 1; 2348 Opts.NativeHalfArgsAndReturns = 1; 2349 } 2350 2351 // OpenCL and C++ both have bool, true, false keywords. 2352 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2353 2354 // OpenCL has half keyword 2355 Opts.Half = Opts.OpenCL; 2356 2357 // C++ has wchar_t keyword. 2358 Opts.WChar = Opts.CPlusPlus; 2359 2360 Opts.GNUKeywords = Opts.GNUMode; 2361 Opts.CXXOperatorNames = Opts.CPlusPlus; 2362 2363 Opts.AlignedAllocation = Opts.CPlusPlus17; 2364 2365 Opts.DollarIdents = !Opts.AsmPreprocessor; 2366 2367 // Enable [[]] attributes in C++11 and C2x by default. 2368 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2369 } 2370 2371 /// Attempt to parse a visibility value out of the given argument. 2372 static Visibility parseVisibility(Arg *arg, ArgList &args, 2373 DiagnosticsEngine &diags) { 2374 StringRef value = arg->getValue(); 2375 if (value == "default") { 2376 return DefaultVisibility; 2377 } else if (value == "hidden" || value == "internal") { 2378 return HiddenVisibility; 2379 } else if (value == "protected") { 2380 // FIXME: diagnose if target does not support protected visibility 2381 return ProtectedVisibility; 2382 } 2383 2384 diags.Report(diag::err_drv_invalid_value) 2385 << arg->getAsString(args) << value; 2386 return DefaultVisibility; 2387 } 2388 2389 /// Check if input file kind and language standard are compatible. 2390 static bool IsInputCompatibleWithStandard(InputKind IK, 2391 const LangStandard &S) { 2392 switch (IK.getLanguage()) { 2393 case Language::Unknown: 2394 case Language::LLVM_IR: 2395 llvm_unreachable("should not parse language flags for this input"); 2396 2397 case Language::C: 2398 case Language::ObjC: 2399 case Language::RenderScript: 2400 return S.getLanguage() == Language::C; 2401 2402 case Language::OpenCL: 2403 return S.getLanguage() == Language::OpenCL; 2404 2405 case Language::CXX: 2406 case Language::ObjCXX: 2407 return S.getLanguage() == Language::CXX; 2408 2409 case Language::CUDA: 2410 // FIXME: What -std= values should be permitted for CUDA compilations? 2411 return S.getLanguage() == Language::CUDA || 2412 S.getLanguage() == Language::CXX; 2413 2414 case Language::HIP: 2415 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2416 2417 case Language::Asm: 2418 // Accept (and ignore) all -std= values. 2419 // FIXME: The -std= value is not ignored; it affects the tokenization 2420 // and preprocessing rules if we're preprocessing this asm input. 2421 return true; 2422 } 2423 2424 llvm_unreachable("unexpected input language"); 2425 } 2426 2427 /// Get language name for given input kind. 2428 static const StringRef GetInputKindName(InputKind IK) { 2429 switch (IK.getLanguage()) { 2430 case Language::C: 2431 return "C"; 2432 case Language::ObjC: 2433 return "Objective-C"; 2434 case Language::CXX: 2435 return "C++"; 2436 case Language::ObjCXX: 2437 return "Objective-C++"; 2438 case Language::OpenCL: 2439 return "OpenCL"; 2440 case Language::CUDA: 2441 return "CUDA"; 2442 case Language::RenderScript: 2443 return "RenderScript"; 2444 case Language::HIP: 2445 return "HIP"; 2446 2447 case Language::Asm: 2448 return "Asm"; 2449 case Language::LLVM_IR: 2450 return "LLVM IR"; 2451 2452 case Language::Unknown: 2453 break; 2454 } 2455 llvm_unreachable("unknown input language"); 2456 } 2457 2458 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2459 const TargetOptions &TargetOpts, 2460 PreprocessorOptions &PPOpts, CodeGenOptions &CGOpts, 2461 DiagnosticsEngine &Diags) { 2462 // FIXME: Cleanup per-file based stuff. 2463 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2464 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2465 LangStd = LangStandard::getLangKind(A->getValue()); 2466 if (LangStd == LangStandard::lang_unspecified) { 2467 Diags.Report(diag::err_drv_invalid_value) 2468 << A->getAsString(Args) << A->getValue(); 2469 // Report supported standards with short description. 2470 for (unsigned KindValue = 0; 2471 KindValue != LangStandard::lang_unspecified; 2472 ++KindValue) { 2473 const LangStandard &Std = LangStandard::getLangStandardForKind( 2474 static_cast<LangStandard::Kind>(KindValue)); 2475 if (IsInputCompatibleWithStandard(IK, Std)) { 2476 auto Diag = Diags.Report(diag::note_drv_use_standard); 2477 Diag << Std.getName() << Std.getDescription(); 2478 unsigned NumAliases = 0; 2479 #define LANGSTANDARD(id, name, lang, desc, features) 2480 #define LANGSTANDARD_ALIAS(id, alias) \ 2481 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2482 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2483 #include "clang/Basic/LangStandards.def" 2484 Diag << NumAliases; 2485 #define LANGSTANDARD(id, name, lang, desc, features) 2486 #define LANGSTANDARD_ALIAS(id, alias) \ 2487 if (KindValue == LangStandard::lang_##id) Diag << alias; 2488 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2489 #include "clang/Basic/LangStandards.def" 2490 } 2491 } 2492 } else { 2493 // Valid standard, check to make sure language and standard are 2494 // compatible. 2495 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2496 if (!IsInputCompatibleWithStandard(IK, Std)) { 2497 Diags.Report(diag::err_drv_argument_not_allowed_with) 2498 << A->getAsString(Args) << GetInputKindName(IK); 2499 } 2500 } 2501 } 2502 2503 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2504 Opts.DllExportInlines = false; 2505 2506 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2507 StringRef Name = A->getValue(); 2508 if (Name == "full" || Name == "branch") { 2509 Opts.CFProtectionBranch = 1; 2510 } 2511 } 2512 // -cl-std only applies for OpenCL language standards. 2513 // Override the -std option in this case. 2514 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2515 LangStandard::Kind OpenCLLangStd 2516 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2517 .Cases("cl", "CL", LangStandard::lang_opencl10) 2518 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2519 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2520 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2521 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2522 .Default(LangStandard::lang_unspecified); 2523 2524 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2525 Diags.Report(diag::err_drv_invalid_value) 2526 << A->getAsString(Args) << A->getValue(); 2527 } 2528 else 2529 LangStd = OpenCLLangStd; 2530 } 2531 2532 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2533 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2534 if (Opts.SYCL) { 2535 // -sycl-std applies to any SYCL source, not only those containing kernels, 2536 // but also those using the SYCL API 2537 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2538 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2539 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2540 .Default(0U); 2541 2542 if (Opts.SYCLVersion == 0U) { 2543 // User has passed an invalid value to the flag, this is an error 2544 Diags.Report(diag::err_drv_invalid_value) 2545 << A->getAsString(Args) << A->getValue(); 2546 } 2547 } 2548 } 2549 2550 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2551 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2552 2553 llvm::Triple T(TargetOpts.Triple); 2554 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2555 2556 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2557 // This option should be deprecated for CL > 1.0 because 2558 // this option was added for compatibility with OpenCL 1.0. 2559 if (Args.getLastArg(OPT_cl_strict_aliasing) 2560 && Opts.OpenCLVersion > 100) { 2561 Diags.Report(diag::warn_option_invalid_ocl_version) 2562 << Opts.getOpenCLVersionTuple().getAsString() 2563 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2564 } 2565 2566 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2567 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2568 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2569 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2570 // name, as it doesn't seem a useful distinction. 2571 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2572 Opts.GNUKeywords); 2573 2574 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2575 2576 if (Args.hasArg(OPT_fno_operator_names)) 2577 Opts.CXXOperatorNames = 0; 2578 2579 if (Args.hasArg(OPT_fcuda_is_device)) 2580 Opts.CUDAIsDevice = 1; 2581 2582 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2583 Opts.CUDAAllowVariadicFunctions = 1; 2584 2585 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2586 Opts.CUDAHostDeviceConstexpr = 0; 2587 2588 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2589 Opts.CUDADeviceApproxTranscendentals = 1; 2590 2591 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2592 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2593 if (Opts.HIP) 2594 Opts.GPUAllowDeviceInit = 1; 2595 else 2596 Diags.Report(diag::warn_ignored_hip_only_option) 2597 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2598 } 2599 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2600 if (Opts.HIP) 2601 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2602 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2603 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2604 Diags.Report(diag::warn_ignored_hip_only_option) 2605 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2606 2607 if (Opts.ObjC) { 2608 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2609 StringRef value = arg->getValue(); 2610 if (Opts.ObjCRuntime.tryParse(value)) 2611 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2612 } 2613 2614 if (Args.hasArg(OPT_fobjc_gc_only)) 2615 Opts.setGC(LangOptions::GCOnly); 2616 else if (Args.hasArg(OPT_fobjc_gc)) 2617 Opts.setGC(LangOptions::HybridGC); 2618 else if (Args.hasArg(OPT_fobjc_arc)) { 2619 Opts.ObjCAutoRefCount = 1; 2620 if (!Opts.ObjCRuntime.allowsARC()) 2621 Diags.Report(diag::err_arc_unsupported_on_runtime); 2622 } 2623 2624 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2625 // whether the feature is actually enabled. This is predominantly 2626 // determined by -fobjc-runtime, but we allow it to be overridden 2627 // from the command line for testing purposes. 2628 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2629 Opts.ObjCWeakRuntime = 1; 2630 else 2631 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2632 2633 // ObjCWeak determines whether __weak is actually enabled. 2634 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2635 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2636 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2637 assert(!Opts.ObjCWeak); 2638 } else if (Opts.getGC() != LangOptions::NonGC) { 2639 Diags.Report(diag::err_objc_weak_with_gc); 2640 } else if (!Opts.ObjCWeakRuntime) { 2641 Diags.Report(diag::err_objc_weak_unsupported); 2642 } else { 2643 Opts.ObjCWeak = 1; 2644 } 2645 } else if (Opts.ObjCAutoRefCount) { 2646 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2647 } 2648 2649 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2650 Opts.ObjCInferRelatedResultType = 0; 2651 2652 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2653 Opts.ObjCSubscriptingLegacyRuntime = 2654 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2655 } 2656 2657 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2658 // Check that the version has 1 to 3 components and the minor and patch 2659 // versions fit in two decimal digits. 2660 VersionTuple GNUCVer; 2661 bool Invalid = GNUCVer.tryParse(A->getValue()); 2662 unsigned Major = GNUCVer.getMajor(); 2663 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2664 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2665 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2666 Diags.Report(diag::err_drv_invalid_value) 2667 << A->getAsString(Args) << A->getValue(); 2668 } 2669 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2670 } 2671 2672 if (Args.hasArg(OPT_fgnu89_inline)) { 2673 if (Opts.CPlusPlus) 2674 Diags.Report(diag::err_drv_argument_not_allowed_with) 2675 << "-fgnu89-inline" << GetInputKindName(IK); 2676 else 2677 Opts.GNUInline = 1; 2678 } 2679 2680 if (Args.hasArg(OPT_fapple_kext)) { 2681 if (!Opts.CPlusPlus) 2682 Diags.Report(diag::warn_c_kext); 2683 else 2684 Opts.AppleKext = 1; 2685 } 2686 2687 if (Args.hasArg(OPT_print_ivar_layout)) 2688 Opts.ObjCGCBitmapPrint = 1; 2689 2690 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2691 Opts.NoConstantCFStrings = 1; 2692 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2693 Opts.CFRuntime = 2694 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2695 .Cases("unspecified", "standalone", "objc", 2696 LangOptions::CoreFoundationABI::ObjectiveC) 2697 .Cases("swift", "swift-5.0", 2698 LangOptions::CoreFoundationABI::Swift5_0) 2699 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2700 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2701 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2702 2703 if (Args.hasArg(OPT_fzvector)) 2704 Opts.ZVector = 1; 2705 2706 if (Args.hasArg(OPT_pthread)) 2707 Opts.POSIXThreads = 1; 2708 2709 // The value-visibility mode defaults to "default". 2710 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2711 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2712 } else { 2713 Opts.setValueVisibilityMode(DefaultVisibility); 2714 } 2715 2716 // The type-visibility mode defaults to the value-visibility mode. 2717 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2718 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2719 } else { 2720 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2721 } 2722 2723 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2724 Opts.InlineVisibilityHidden = 1; 2725 2726 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2727 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2728 2729 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2730 Opts.SetVisibilityForExternDecls = 1; 2731 2732 if (Args.hasArg(OPT_ftrapv)) { 2733 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2734 // Set the handler, if one is specified. 2735 Opts.OverflowHandler = 2736 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2737 } 2738 else if (Args.hasArg(OPT_fwrapv)) 2739 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2740 2741 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2742 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2743 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2744 Opts.MSCompatibilityVersion = 0; 2745 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2746 VersionTuple VT; 2747 if (VT.tryParse(A->getValue())) 2748 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2749 << A->getValue(); 2750 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2751 VT.getMinor().getValueOr(0) * 100000 + 2752 VT.getSubminor().getValueOr(0); 2753 } 2754 2755 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2756 // is specified, or -std is set to a conforming mode. 2757 // Trigraphs are disabled by default in c++1z onwards. 2758 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2759 Opts.Trigraphs = 2760 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2761 2762 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2763 OPT_fno_dollars_in_identifiers, 2764 Opts.DollarIdents); 2765 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2766 Opts.setVtorDispMode( 2767 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2768 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2769 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2770 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2771 Opts.ConstStrings); 2772 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2773 using LaxKind = LangOptions::LaxVectorConversionKind; 2774 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2775 .Case("none", LaxKind::None) 2776 .Case("integer", LaxKind::Integer) 2777 .Case("all", LaxKind::All) 2778 .Default(llvm::None)) 2779 Opts.setLaxVectorConversions(*Kind); 2780 else 2781 Diags.Report(diag::err_drv_invalid_value) 2782 << A->getAsString(Args) << A->getValue(); 2783 } 2784 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2785 Opts.ThreadsafeStatics = 0; 2786 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2787 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2788 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2789 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2790 2791 // -ffixed-point 2792 Opts.FixedPoint = 2793 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2794 !Opts.CPlusPlus; 2795 Opts.PaddingOnUnsignedFixedPoint = 2796 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2797 OPT_fno_padding_on_unsigned_fixed_point, 2798 /*Default=*/false) && 2799 Opts.FixedPoint; 2800 2801 // Handle exception personalities 2802 Arg *A = Args.getLastArg( 2803 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2804 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2805 if (A) { 2806 const Option &Opt = A->getOption(); 2807 llvm::Triple T(TargetOpts.Triple); 2808 if (T.isWindowsMSVCEnvironment()) 2809 Diags.Report(diag::err_fe_invalid_exception_model) 2810 << Opt.getName() << T.str(); 2811 2812 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2813 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2814 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2815 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2816 } 2817 2818 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2819 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2820 2821 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2822 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2823 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2824 && Opts.OpenCLVersion == 200); 2825 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2826 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2827 2828 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2829 Args.hasArg(OPT_fconvergent_functions); 2830 2831 Opts.DoubleSquareBracketAttributes = 2832 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2833 OPT_fno_double_square_bracket_attributes, 2834 Opts.DoubleSquareBracketAttributes); 2835 2836 Opts.CPlusPlusModules = Opts.CPlusPlus20; 2837 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2838 Opts.Modules = 2839 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2840 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2841 Opts.ModulesDeclUse = 2842 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2843 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2844 // enter a different module (eg, when building a header unit). 2845 Opts.ModulesLocalVisibility = 2846 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2847 Opts.CPlusPlusModules; 2848 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2849 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2850 Opts.ModulesSearchAll = Opts.Modules && 2851 !Args.hasArg(OPT_fno_modules_search_all) && 2852 Args.hasArg(OPT_fmodules_search_all); 2853 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2854 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2855 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2856 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2857 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 2858 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2859 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2860 .Case("char", 1) 2861 .Case("short", 2) 2862 .Case("int", 4) 2863 .Default(0); 2864 if (Opts.WCharSize == 0) 2865 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2866 } 2867 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2868 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2869 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2870 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2871 if (!Opts.NoBuiltin) 2872 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2873 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2874 Opts.RelaxedTemplateTemplateArgs = 2875 Args.hasArg(OPT_frelaxed_template_template_args); 2876 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2877 Opts.AlignedAllocation = 2878 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2879 Opts.AlignedAllocation); 2880 Opts.AlignedAllocationUnavailable = 2881 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2882 Opts.NewAlignOverride = 2883 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2884 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2885 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2886 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2887 << A->getValue(); 2888 Opts.NewAlignOverride = 0; 2889 } 2890 Opts.ConceptSatisfactionCaching = 2891 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2892 if (Args.hasArg(OPT_fconcepts_ts)) 2893 Diags.Report(diag::warn_fe_concepts_ts_flag); 2894 Opts.RecoveryAST = 2895 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, false); 2896 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2897 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2898 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2899 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2900 Opts.InstantiationDepth = 2901 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2902 Opts.ArrowDepth = 2903 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2904 Opts.ConstexprCallDepth = 2905 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2906 Opts.ConstexprStepLimit = 2907 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2908 Opts.EnableNewConstInterp = 2909 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2910 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2911 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2912 Opts.NumLargeByValueCopy = 2913 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2914 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2915 Opts.ObjCConstantStringClass = 2916 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2917 Opts.ObjCDefaultSynthProperties = 2918 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2919 Opts.EncodeExtendedBlockSig = 2920 Args.hasArg(OPT_fencode_extended_block_signature); 2921 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2922 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2923 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2924 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2925 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 2926 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2927 ? 128 2928 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2929 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2930 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2931 Opts.ROPI = Args.hasArg(OPT_fropi); 2932 Opts.RWPI = Args.hasArg(OPT_frwpi); 2933 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2934 Opts.Static = Args.hasArg(OPT_static_define); 2935 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2936 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2937 || Args.hasArg(OPT_fdump_record_layouts); 2938 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2939 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2940 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2941 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2942 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2943 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2944 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2945 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2946 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2947 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2948 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2949 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2950 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 2951 Opts.CurrentModule = Opts.ModuleName; 2952 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2953 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2954 llvm::sort(Opts.ModuleFeatures); 2955 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2956 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2957 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2958 // is enabled. 2959 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2960 | Opts.NativeHalfArgsAndReturns; 2961 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2962 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2963 2964 // __declspec is enabled by default for the PS4 by the driver, and also 2965 // enabled for Microsoft Extensions or Borland Extensions, here. 2966 // 2967 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2968 // CUDA extension. However, it is required for supporting 2969 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2970 // been rewritten in terms of something more generic, remove the Opts.CUDA 2971 // term here. 2972 Opts.DeclSpecKeyword = 2973 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2974 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2975 2976 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2977 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2978 .Case("target", LangOptions::ASMM_Target) 2979 .Case("no", LangOptions::ASMM_Off) 2980 .Case("yes", LangOptions::ASMM_On) 2981 .Default(255)) { 2982 default: 2983 Diags.Report(diag::err_drv_invalid_value) 2984 << "-faddress-space-map-mangling=" << A->getValue(); 2985 break; 2986 case LangOptions::ASMM_Target: 2987 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2988 break; 2989 case LangOptions::ASMM_On: 2990 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2991 break; 2992 case LangOptions::ASMM_Off: 2993 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2994 break; 2995 } 2996 } 2997 2998 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2999 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 3000 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 3001 A->getValue()) 3002 .Case("single", 3003 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3004 .Case("multiple", 3005 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3006 .Case("virtual", 3007 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3008 .Default(LangOptions::PPTMK_BestCase); 3009 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3010 Diags.Report(diag::err_drv_invalid_value) 3011 << "-fms-memptr-rep=" << A->getValue(); 3012 3013 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3014 } 3015 3016 // Check for MS default calling conventions being specified. 3017 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3018 LangOptions::DefaultCallingConvention DefaultCC = 3019 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3020 .Case("cdecl", LangOptions::DCC_CDecl) 3021 .Case("fastcall", LangOptions::DCC_FastCall) 3022 .Case("stdcall", LangOptions::DCC_StdCall) 3023 .Case("vectorcall", LangOptions::DCC_VectorCall) 3024 .Case("regcall", LangOptions::DCC_RegCall) 3025 .Default(LangOptions::DCC_None); 3026 if (DefaultCC == LangOptions::DCC_None) 3027 Diags.Report(diag::err_drv_invalid_value) 3028 << "-fdefault-calling-conv=" << A->getValue(); 3029 3030 llvm::Triple T(TargetOpts.Triple); 3031 llvm::Triple::ArchType Arch = T.getArch(); 3032 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3033 DefaultCC == LangOptions::DCC_StdCall) && 3034 Arch != llvm::Triple::x86; 3035 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3036 DefaultCC == LangOptions::DCC_RegCall) && 3037 !T.isX86(); 3038 if (emitError) 3039 Diags.Report(diag::err_drv_argument_not_allowed_with) 3040 << A->getSpelling() << T.getTriple(); 3041 else 3042 Opts.setDefaultCallingConv(DefaultCC); 3043 } 3044 3045 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3046 3047 // -mrtd option 3048 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3049 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3050 Diags.Report(diag::err_drv_argument_not_allowed_with) 3051 << A->getSpelling() << "-fdefault-calling-conv"; 3052 else { 3053 llvm::Triple T(TargetOpts.Triple); 3054 if (T.getArch() != llvm::Triple::x86) 3055 Diags.Report(diag::err_drv_argument_not_allowed_with) 3056 << A->getSpelling() << T.getTriple(); 3057 else 3058 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3059 } 3060 } 3061 3062 // Check if -fopenmp is specified and set default version to 4.5. 3063 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 45 : 0; 3064 // Check if -fopenmp-simd is specified. 3065 bool IsSimdSpecified = 3066 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3067 /*Default=*/false); 3068 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3069 Opts.OpenMPUseTLS = 3070 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3071 Opts.OpenMPIsDevice = 3072 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3073 Opts.OpenMPIRBuilder = 3074 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3075 bool IsTargetSpecified = 3076 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3077 3078 if (Opts.OpenMP || Opts.OpenMPSimd) { 3079 if (int Version = getLastArgIntValue( 3080 Args, OPT_fopenmp_version_EQ, 3081 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 3082 Opts.OpenMP = Version; 3083 else if (IsSimdSpecified || IsTargetSpecified) 3084 Opts.OpenMP = 45; 3085 // Provide diagnostic when a given target is not expected to be an OpenMP 3086 // device or host. 3087 if (!Opts.OpenMPIsDevice) { 3088 switch (T.getArch()) { 3089 default: 3090 break; 3091 // Add unsupported host targets here: 3092 case llvm::Triple::nvptx: 3093 case llvm::Triple::nvptx64: 3094 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3095 << TargetOpts.Triple; 3096 break; 3097 } 3098 } 3099 } 3100 3101 // Set the flag to prevent the implementation from emitting device exception 3102 // handling code for those requiring so. 3103 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 3104 Opts.Exceptions = 0; 3105 Opts.CXXExceptions = 0; 3106 } 3107 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3108 Opts.OpenMPCUDANumSMs = 3109 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3110 Opts.OpenMPCUDANumSMs, Diags); 3111 Opts.OpenMPCUDABlocksPerSM = 3112 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3113 Opts.OpenMPCUDABlocksPerSM, Diags); 3114 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3115 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3116 Opts.OpenMPCUDAReductionBufNum, Diags); 3117 } 3118 3119 // Prevent auto-widening the representation of loop counters during an 3120 // OpenMP collapse clause. 3121 Opts.OpenMPOptimisticCollapse = 3122 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3123 3124 // Get the OpenMP target triples if any. 3125 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3126 3127 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3128 llvm::Triple TT(A->getValue(i)); 3129 3130 if (TT.getArch() == llvm::Triple::UnknownArch || 3131 !(TT.getArch() == llvm::Triple::aarch64 || 3132 TT.getArch() == llvm::Triple::ppc || 3133 TT.getArch() == llvm::Triple::ppc64 || 3134 TT.getArch() == llvm::Triple::ppc64le || 3135 TT.getArch() == llvm::Triple::nvptx || 3136 TT.getArch() == llvm::Triple::nvptx64 || 3137 TT.getArch() == llvm::Triple::x86 || 3138 TT.getArch() == llvm::Triple::x86_64)) 3139 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3140 else 3141 Opts.OMPTargetTriples.push_back(TT); 3142 } 3143 } 3144 3145 // Get OpenMP host file path if any and report if a non existent file is 3146 // found 3147 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3148 Opts.OMPHostIRFile = A->getValue(); 3149 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3150 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3151 << Opts.OMPHostIRFile; 3152 } 3153 3154 // Set CUDA mode for OpenMP target NVPTX if specified in options 3155 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 3156 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3157 3158 // Set CUDA mode for OpenMP target NVPTX if specified in options 3159 Opts.OpenMPCUDAForceFullRuntime = 3160 Opts.OpenMPIsDevice && T.isNVPTX() && 3161 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3162 3163 // Record whether the __DEPRECATED define was requested. 3164 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3165 OPT_fno_deprecated_macro, 3166 Opts.Deprecated); 3167 3168 // FIXME: Eliminate this dependency. 3169 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3170 OptSize = getOptimizationLevelSize(Args); 3171 Opts.Optimize = Opt != 0; 3172 Opts.OptimizeSize = OptSize != 0; 3173 3174 // This is the __NO_INLINE__ define, which just depends on things like the 3175 // optimization level and -fno-inline, not actually whether the backend has 3176 // inlining enabled. 3177 Opts.NoInlineDefine = !Opts.Optimize; 3178 if (Arg *InlineArg = Args.getLastArg( 3179 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3180 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3181 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3182 Opts.NoInlineDefine = true; 3183 3184 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 3185 Args.hasArg(OPT_cl_fast_relaxed_math); 3186 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3187 Args.hasArg(OPT_cl_finite_math_only) || 3188 Args.hasArg(OPT_cl_fast_relaxed_math); 3189 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3190 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3191 Args.hasArg(OPT_cl_fast_relaxed_math); 3192 Opts.AllowFPReassoc = Opts.FastMath || CGOpts.Reassociate; 3193 Opts.NoHonorNaNs = 3194 Opts.FastMath || CGOpts.NoNaNsFPMath || Opts.FiniteMathOnly; 3195 Opts.NoHonorInfs = 3196 Opts.FastMath || CGOpts.NoInfsFPMath || Opts.FiniteMathOnly; 3197 Opts.NoSignedZero = Opts.FastMath || CGOpts.NoSignedZeros; 3198 Opts.AllowRecip = Opts.FastMath || CGOpts.ReciprocalMath; 3199 // Currently there's no clang option to enable this individually 3200 Opts.ApproxFunc = Opts.FastMath; 3201 3202 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3203 StringRef Val = A->getValue(); 3204 if (Val == "fast") 3205 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3206 else if (Val == "on") 3207 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3208 else if (Val == "off") 3209 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3210 else 3211 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3212 } 3213 3214 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3215 if (Args.hasArg(OPT_frounding_math)) { 3216 FPRM = llvm::RoundingMode::Dynamic; 3217 } 3218 Opts.setFPRoundingMode(FPRM); 3219 3220 if (Args.hasArg(OPT_ftrapping_math)) { 3221 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3222 } 3223 3224 if (Args.hasArg(OPT_fno_trapping_math)) { 3225 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3226 } 3227 3228 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3229 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3230 StringRef Val = A->getValue(); 3231 if (Val.equals("ignore")) 3232 FPEB = LangOptions::FPE_Ignore; 3233 else if (Val.equals("maytrap")) 3234 FPEB = LangOptions::FPE_MayTrap; 3235 else if (Val.equals("strict")) 3236 FPEB = LangOptions::FPE_Strict; 3237 else 3238 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3239 } 3240 Opts.setFPExceptionMode(FPEB); 3241 3242 Opts.RetainCommentsFromSystemHeaders = 3243 Args.hasArg(OPT_fretain_comments_from_system_headers); 3244 3245 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3246 switch (SSP) { 3247 default: 3248 Diags.Report(diag::err_drv_invalid_value) 3249 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3250 break; 3251 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3252 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3253 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3254 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3255 } 3256 3257 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3258 StringRef Val = A->getValue(); 3259 if (Val == "uninitialized") 3260 Opts.setTrivialAutoVarInit( 3261 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3262 else if (Val == "zero") 3263 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3264 else if (Val == "pattern") 3265 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3266 else 3267 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3268 } 3269 3270 // Parse -fsanitize= arguments. 3271 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3272 Diags, Opts.Sanitize); 3273 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3274 Opts.SanitizeAddressFieldPadding = 3275 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3276 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3277 std::vector<std::string> systemBlacklists = 3278 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3279 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3280 systemBlacklists.begin(), 3281 systemBlacklists.end()); 3282 3283 // -fxray-instrument 3284 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3285 Opts.XRayAlwaysEmitCustomEvents = 3286 Args.hasArg(OPT_fxray_always_emit_customevents); 3287 Opts.XRayAlwaysEmitTypedEvents = 3288 Args.hasArg(OPT_fxray_always_emit_typedevents); 3289 3290 // -fxray-{always,never}-instrument= filenames. 3291 Opts.XRayAlwaysInstrumentFiles = 3292 Args.getAllArgValues(OPT_fxray_always_instrument); 3293 Opts.XRayNeverInstrumentFiles = 3294 Args.getAllArgValues(OPT_fxray_never_instrument); 3295 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3296 3297 // -fforce-emit-vtables 3298 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3299 3300 // -fallow-editor-placeholders 3301 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3302 3303 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3304 3305 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3306 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3307 3308 StringRef Ver = A->getValue(); 3309 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3310 unsigned Major, Minor = 0; 3311 3312 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3313 // y or y.0 (4 <= y <= current version). 3314 if (!VerParts.first.startswith("0") && 3315 !VerParts.first.getAsInteger(10, Major) && 3316 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3317 (Major == 3 ? VerParts.second.size() == 1 && 3318 !VerParts.second.getAsInteger(10, Minor) 3319 : VerParts.first.size() == Ver.size() || 3320 VerParts.second == "0")) { 3321 // Got a valid version number. 3322 if (Major == 3 && Minor <= 8) 3323 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3324 else if (Major <= 4) 3325 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3326 else if (Major <= 6) 3327 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3328 else if (Major <= 7) 3329 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3330 else if (Major <= 9) 3331 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3332 } else if (Ver != "latest") { 3333 Diags.Report(diag::err_drv_invalid_value) 3334 << A->getAsString(Args) << A->getValue(); 3335 } 3336 } 3337 3338 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3339 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3340 3341 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3342 3343 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3344 StringRef SignScope = A->getValue(); 3345 3346 if (SignScope.equals_lower("none")) 3347 Opts.setSignReturnAddressScope( 3348 LangOptions::SignReturnAddressScopeKind::None); 3349 else if (SignScope.equals_lower("all")) 3350 Opts.setSignReturnAddressScope( 3351 LangOptions::SignReturnAddressScopeKind::All); 3352 else if (SignScope.equals_lower("non-leaf")) 3353 Opts.setSignReturnAddressScope( 3354 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3355 else 3356 Diags.Report(diag::err_drv_invalid_value) 3357 << A->getAsString(Args) << SignScope; 3358 3359 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3360 StringRef SignKey = A->getValue(); 3361 if (!SignScope.empty() && !SignKey.empty()) { 3362 if (SignKey.equals_lower("a_key")) 3363 Opts.setSignReturnAddressKey( 3364 LangOptions::SignReturnAddressKeyKind::AKey); 3365 else if (SignKey.equals_lower("b_key")) 3366 Opts.setSignReturnAddressKey( 3367 LangOptions::SignReturnAddressKeyKind::BKey); 3368 else 3369 Diags.Report(diag::err_drv_invalid_value) 3370 << A->getAsString(Args) << SignKey; 3371 } 3372 } 3373 } 3374 3375 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3376 } 3377 3378 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3379 switch (Action) { 3380 case frontend::ASTDeclList: 3381 case frontend::ASTDump: 3382 case frontend::ASTPrint: 3383 case frontend::ASTView: 3384 case frontend::EmitAssembly: 3385 case frontend::EmitBC: 3386 case frontend::EmitHTML: 3387 case frontend::EmitLLVM: 3388 case frontend::EmitLLVMOnly: 3389 case frontend::EmitCodeGenOnly: 3390 case frontend::EmitObj: 3391 case frontend::FixIt: 3392 case frontend::GenerateModule: 3393 case frontend::GenerateModuleInterface: 3394 case frontend::GenerateHeaderModule: 3395 case frontend::GeneratePCH: 3396 case frontend::GenerateInterfaceStubs: 3397 case frontend::ParseSyntaxOnly: 3398 case frontend::ModuleFileInfo: 3399 case frontend::VerifyPCH: 3400 case frontend::PluginAction: 3401 case frontend::RewriteObjC: 3402 case frontend::RewriteTest: 3403 case frontend::RunAnalysis: 3404 case frontend::TemplightDump: 3405 case frontend::MigrateSource: 3406 return false; 3407 3408 case frontend::DumpCompilerOptions: 3409 case frontend::DumpRawTokens: 3410 case frontend::DumpTokens: 3411 case frontend::InitOnly: 3412 case frontend::PrintPreamble: 3413 case frontend::PrintPreprocessedInput: 3414 case frontend::RewriteMacros: 3415 case frontend::RunPreprocessorOnly: 3416 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3417 return true; 3418 } 3419 llvm_unreachable("invalid frontend action"); 3420 } 3421 3422 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3423 DiagnosticsEngine &Diags, 3424 frontend::ActionKind Action) { 3425 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3426 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3427 Args.hasArg(OPT_pch_through_hdrstop_use); 3428 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3429 Opts.PCHThroughHeader = 3430 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3431 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3432 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3433 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3434 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3435 3436 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3437 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3438 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3439 3440 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3441 auto Split = StringRef(A).split('='); 3442 Opts.MacroPrefixMap.insert( 3443 {std::string(Split.first), std::string(Split.second)}); 3444 } 3445 3446 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3447 StringRef Value(A->getValue()); 3448 size_t Comma = Value.find(','); 3449 unsigned Bytes = 0; 3450 unsigned EndOfLine = 0; 3451 3452 if (Comma == StringRef::npos || 3453 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3454 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3455 Diags.Report(diag::err_drv_preamble_format); 3456 else { 3457 Opts.PrecompiledPreambleBytes.first = Bytes; 3458 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3459 } 3460 } 3461 3462 // Add the __CET__ macro if a CFProtection option is set. 3463 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3464 StringRef Name = A->getValue(); 3465 if (Name == "branch") 3466 Opts.addMacroDef("__CET__=1"); 3467 else if (Name == "return") 3468 Opts.addMacroDef("__CET__=2"); 3469 else if (Name == "full") 3470 Opts.addMacroDef("__CET__=3"); 3471 } 3472 3473 // Add macros from the command line. 3474 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3475 if (A->getOption().matches(OPT_D)) 3476 Opts.addMacroDef(A->getValue()); 3477 else 3478 Opts.addMacroUndef(A->getValue()); 3479 } 3480 3481 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3482 3483 // Add the ordered list of -includes. 3484 for (const auto *A : Args.filtered(OPT_include)) 3485 Opts.Includes.emplace_back(A->getValue()); 3486 3487 for (const auto *A : Args.filtered(OPT_chain_include)) 3488 Opts.ChainedIncludes.emplace_back(A->getValue()); 3489 3490 for (const auto *A : Args.filtered(OPT_remap_file)) { 3491 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3492 3493 if (Split.second.empty()) { 3494 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3495 continue; 3496 } 3497 3498 Opts.addRemappedFile(Split.first, Split.second); 3499 } 3500 3501 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3502 StringRef Name = A->getValue(); 3503 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3504 .Case("libc++", ARCXX_libcxx) 3505 .Case("libstdc++", ARCXX_libstdcxx) 3506 .Case("none", ARCXX_nolib) 3507 .Default(~0U); 3508 if (Library == ~0U) 3509 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3510 else 3511 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3512 } 3513 3514 // Always avoid lexing editor placeholders when we're just running the 3515 // preprocessor as we never want to emit the 3516 // "editor placeholder in source file" error in PP only mode. 3517 if (isStrictlyPreprocessorAction(Action)) 3518 Opts.LexEditorPlaceholders = false; 3519 3520 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3521 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3522 } 3523 3524 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3525 ArgList &Args, 3526 frontend::ActionKind Action) { 3527 if (isStrictlyPreprocessorAction(Action)) 3528 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3529 else 3530 Opts.ShowCPP = 0; 3531 3532 Opts.ShowComments = Args.hasArg(OPT_C); 3533 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3534 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3535 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3536 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3537 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3538 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3539 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3540 } 3541 3542 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3543 DiagnosticsEngine &Diags) { 3544 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3545 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3546 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3547 StringRef Value = A->getValue(); 3548 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3549 .Case("default", llvm::EABI::Default) 3550 .Case("4", llvm::EABI::EABI4) 3551 .Case("5", llvm::EABI::EABI5) 3552 .Case("gnu", llvm::EABI::GNU) 3553 .Default(llvm::EABI::Unknown); 3554 if (EABIVersion == llvm::EABI::Unknown) 3555 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3556 << Value; 3557 else 3558 Opts.EABIVersion = EABIVersion; 3559 } 3560 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3561 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3562 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3563 Opts.LinkerVersion = 3564 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3565 Opts.Triple = std::string(Args.getLastArgValue(OPT_triple)); 3566 // Use the default target triple if unspecified. 3567 if (Opts.Triple.empty()) 3568 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3569 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3570 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3571 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3572 Opts.NVPTXUseShortPointers = Args.hasFlag( 3573 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3574 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3575 llvm::VersionTuple Version; 3576 if (Version.tryParse(A->getValue())) 3577 Diags.Report(diag::err_drv_invalid_value) 3578 << A->getAsString(Args) << A->getValue(); 3579 else 3580 Opts.SDKVersion = Version; 3581 } 3582 } 3583 3584 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3585 ArrayRef<const char *> CommandLineArgs, 3586 DiagnosticsEngine &Diags) { 3587 bool Success = true; 3588 3589 // Parse the arguments. 3590 const OptTable &Opts = getDriverOptTable(); 3591 const unsigned IncludedFlagsBitmask = options::CC1Option; 3592 unsigned MissingArgIndex, MissingArgCount; 3593 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3594 MissingArgCount, IncludedFlagsBitmask); 3595 LangOptions &LangOpts = *Res.getLangOpts(); 3596 3597 // Check for missing argument error. 3598 if (MissingArgCount) { 3599 Diags.Report(diag::err_drv_missing_argument) 3600 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3601 Success = false; 3602 } 3603 3604 // Issue errors on unknown arguments. 3605 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3606 auto ArgString = A->getAsString(Args); 3607 std::string Nearest; 3608 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3609 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3610 else 3611 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3612 << ArgString << Nearest; 3613 Success = false; 3614 } 3615 3616 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3617 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3618 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3619 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3620 Res.getDependencyOutputOpts().Targets.empty()) { 3621 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3622 Success = false; 3623 } 3624 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3625 /*DefaultDiagColor=*/false); 3626 ParseCommentArgs(LangOpts.CommentOpts, Args); 3627 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3628 // FIXME: We shouldn't have to pass the DashX option around here 3629 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3630 LangOpts.IsHeaderFile); 3631 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3632 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3633 Res.getTargetOpts(), Res.getFrontendOpts()); 3634 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3635 Res.getFileSystemOpts().WorkingDir); 3636 llvm::Triple T(Res.getTargetOpts().Triple); 3637 if (DashX.getFormat() == InputKind::Precompiled || 3638 DashX.getLanguage() == Language::LLVM_IR) { 3639 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3640 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3641 // what the input type is. 3642 if (Args.hasArg(OPT_fobjc_arc)) 3643 LangOpts.ObjCAutoRefCount = 1; 3644 // PIClevel and PIELevel are needed during code generation and this should be 3645 // set regardless of the input type. 3646 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3647 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3648 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3649 Diags, LangOpts.Sanitize); 3650 } else { 3651 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3652 // FIXME: Should we really be calling this for an Language::Asm input? 3653 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3654 Res.getPreprocessorOpts(), Res.getCodeGenOpts(), Diags); 3655 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3656 LangOpts.ObjCExceptions = 1; 3657 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3658 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3659 // preprocessed input as we don't expect it to be used with -std=libc++ 3660 // anyway. 3661 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3662 } 3663 } 3664 3665 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3666 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3667 3668 LangOpts.FunctionAlignment = 3669 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3670 3671 if (LangOpts.CUDA) { 3672 // During CUDA device-side compilation, the aux triple is the 3673 // triple used for host compilation. 3674 if (LangOpts.CUDAIsDevice) 3675 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3676 } 3677 3678 // Set the triple of the host for OpenMP device compile. 3679 if (LangOpts.OpenMPIsDevice) 3680 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3681 3682 // FIXME: Override value name discarding when asan or msan is used because the 3683 // backend passes depend on the name of the alloca in order to print out 3684 // names. 3685 Res.getCodeGenOpts().DiscardValueNames &= 3686 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3687 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3688 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3689 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3690 3691 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3692 Res.getFrontendOpts().ProgramAction); 3693 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3694 Res.getFrontendOpts().ProgramAction); 3695 3696 // Turn on -Wspir-compat for SPIR target. 3697 if (T.isSPIR()) 3698 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3699 3700 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3701 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3702 !Res.getLangOpts()->Sanitize.empty()) { 3703 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3704 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3705 } 3706 return Success; 3707 } 3708 3709 std::string CompilerInvocation::getModuleHash() const { 3710 // Note: For QoI reasons, the things we use as a hash here should all be 3711 // dumped via the -module-info flag. 3712 using llvm::hash_code; 3713 using llvm::hash_value; 3714 using llvm::hash_combine; 3715 using llvm::hash_combine_range; 3716 3717 // Start the signature with the compiler version. 3718 // FIXME: We'd rather use something more cryptographically sound than 3719 // CityHash, but this will do for now. 3720 hash_code code = hash_value(getClangFullRepositoryVersion()); 3721 3722 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3723 // and getClangFullRepositoryVersion() doesn't include git revision. 3724 code = hash_combine(code, serialization::VERSION_MAJOR, 3725 serialization::VERSION_MINOR); 3726 3727 // Extend the signature with the language options 3728 #define LANGOPT(Name, Bits, Default, Description) \ 3729 code = hash_combine(code, LangOpts->Name); 3730 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3731 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3732 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3733 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3734 #include "clang/Basic/LangOptions.def" 3735 3736 for (StringRef Feature : LangOpts->ModuleFeatures) 3737 code = hash_combine(code, Feature); 3738 3739 // Extend the signature with the target options. 3740 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3741 TargetOpts->ABI); 3742 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3743 code = hash_combine(code, FeatureAsWritten); 3744 3745 // Extend the signature with preprocessor options. 3746 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3747 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3748 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3749 3750 for (const auto &I : getPreprocessorOpts().Macros) { 3751 // If we're supposed to ignore this macro for the purposes of modules, 3752 // don't put it into the hash. 3753 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3754 // Check whether we're ignoring this macro. 3755 StringRef MacroDef = I.first; 3756 if (hsOpts.ModulesIgnoreMacros.count( 3757 llvm::CachedHashString(MacroDef.split('=').first))) 3758 continue; 3759 } 3760 3761 code = hash_combine(code, I.first, I.second); 3762 } 3763 3764 // Extend the signature with the sysroot and other header search options. 3765 code = hash_combine(code, hsOpts.Sysroot, 3766 hsOpts.ModuleFormat, 3767 hsOpts.UseDebugInfo, 3768 hsOpts.UseBuiltinIncludes, 3769 hsOpts.UseStandardSystemIncludes, 3770 hsOpts.UseStandardCXXIncludes, 3771 hsOpts.UseLibcxx, 3772 hsOpts.ModulesValidateDiagnosticOptions); 3773 code = hash_combine(code, hsOpts.ResourceDir); 3774 3775 if (hsOpts.ModulesStrictContextHash) { 3776 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3777 hsOpts.SystemHeaderPrefixes.end()); 3778 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3779 hsOpts.UserEntries.end()); 3780 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3781 hsOpts.UserEntries.size(), UEC); 3782 3783 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3784 #define DIAGOPT(Name, Bits, Default) \ 3785 code = hash_combine(code, diagOpts.Name); 3786 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3787 code = hash_combine(code, diagOpts.get##Name()); 3788 #include "clang/Basic/DiagnosticOptions.def" 3789 #undef DIAGOPT 3790 #undef ENUM_DIAGOPT 3791 } 3792 3793 // Extend the signature with the user build path. 3794 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3795 3796 // Extend the signature with the module file extensions. 3797 const FrontendOptions &frontendOpts = getFrontendOpts(); 3798 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3799 code = ext->hashExtension(code); 3800 } 3801 3802 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3803 // affects the debug info in the PCM. 3804 if (getCodeGenOpts().DebugTypeExtRefs) 3805 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3806 code = hash_combine(code, KeyValue.first, KeyValue.second); 3807 3808 // Extend the signature with the enabled sanitizers, if at least one is 3809 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3810 SanitizerSet SanHash = LangOpts->Sanitize; 3811 SanHash.clear(getPPTransparentSanitizers()); 3812 if (!SanHash.empty()) 3813 code = hash_combine(code, SanHash.Mask); 3814 3815 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3816 } 3817 3818 namespace clang { 3819 3820 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3821 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3822 DiagnosticsEngine &Diags) { 3823 return createVFSFromCompilerInvocation(CI, Diags, 3824 llvm::vfs::getRealFileSystem()); 3825 } 3826 3827 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3828 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3829 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3830 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3831 return BaseFS; 3832 3833 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3834 // earlier vfs files are on the bottom 3835 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3836 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3837 Result->getBufferForFile(File); 3838 if (!Buffer) { 3839 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3840 continue; 3841 } 3842 3843 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3844 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3845 /*DiagContext*/ nullptr, Result); 3846 if (!FS) { 3847 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3848 continue; 3849 } 3850 3851 Result = FS; 3852 } 3853 return Result; 3854 } 3855 3856 } // namespace clang 3857