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