1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/LangStandard.h" 22 #include "clang/Basic/ObjCRuntime.h" 23 #include "clang/Basic/Sanitizers.h" 24 #include "clang/Basic/SourceLocation.h" 25 #include "clang/Basic/TargetOptions.h" 26 #include "clang/Basic/Version.h" 27 #include "clang/Basic/Visibility.h" 28 #include "clang/Basic/XRayInstr.h" 29 #include "clang/Config/config.h" 30 #include "clang/Driver/Driver.h" 31 #include "clang/Driver/DriverDiagnostic.h" 32 #include "clang/Driver/Options.h" 33 #include "clang/Frontend/CommandLineSourceLoc.h" 34 #include "clang/Frontend/DependencyOutputOptions.h" 35 #include "clang/Frontend/FrontendDiagnostic.h" 36 #include "clang/Frontend/FrontendOptions.h" 37 #include "clang/Frontend/FrontendPluginRegistry.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/Utils.h" 41 #include "clang/Lex/HeaderSearchOptions.h" 42 #include "clang/Lex/PreprocessorOptions.h" 43 #include "clang/Sema/CodeCompleteOptions.h" 44 #include "clang/Serialization/ASTBitCodes.h" 45 #include "clang/Serialization/ModuleFileExtension.h" 46 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 47 #include "llvm/ADT/APInt.h" 48 #include "llvm/ADT/ArrayRef.h" 49 #include "llvm/ADT/CachedHashString.h" 50 #include "llvm/ADT/Hashing.h" 51 #include "llvm/ADT/None.h" 52 #include "llvm/ADT/Optional.h" 53 #include "llvm/ADT/SmallString.h" 54 #include "llvm/ADT/SmallVector.h" 55 #include "llvm/ADT/StringRef.h" 56 #include "llvm/ADT/StringSwitch.h" 57 #include "llvm/ADT/Triple.h" 58 #include "llvm/ADT/Twine.h" 59 #include "llvm/IR/DebugInfoMetadata.h" 60 #include "llvm/Linker/Linker.h" 61 #include "llvm/MC/MCTargetOptions.h" 62 #include "llvm/Option/Arg.h" 63 #include "llvm/Option/ArgList.h" 64 #include "llvm/Option/OptSpecifier.h" 65 #include "llvm/Option/OptTable.h" 66 #include "llvm/Option/Option.h" 67 #include "llvm/ProfileData/InstrProfReader.h" 68 #include "llvm/Support/CodeGen.h" 69 #include "llvm/Support/Compiler.h" 70 #include "llvm/Support/Error.h" 71 #include "llvm/Support/ErrorHandling.h" 72 #include "llvm/Support/ErrorOr.h" 73 #include "llvm/Support/FileSystem.h" 74 #include "llvm/Support/Host.h" 75 #include "llvm/Support/MathExtras.h" 76 #include "llvm/Support/MemoryBuffer.h" 77 #include "llvm/Support/Path.h" 78 #include "llvm/Support/Process.h" 79 #include "llvm/Support/Regex.h" 80 #include "llvm/Support/VersionTuple.h" 81 #include "llvm/Support/VirtualFileSystem.h" 82 #include "llvm/Support/raw_ostream.h" 83 #include "llvm/Target/TargetOptions.h" 84 #include <algorithm> 85 #include <atomic> 86 #include <cassert> 87 #include <cstddef> 88 #include <cstring> 89 #include <memory> 90 #include <string> 91 #include <tuple> 92 #include <utility> 93 #include <vector> 94 95 using namespace clang; 96 using namespace driver; 97 using namespace options; 98 using namespace llvm::opt; 99 100 //===----------------------------------------------------------------------===// 101 // Initialization. 102 //===----------------------------------------------------------------------===// 103 104 CompilerInvocationBase::CompilerInvocationBase() 105 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 106 DiagnosticOpts(new DiagnosticOptions()), 107 HeaderSearchOpts(new HeaderSearchOptions()), 108 PreprocessorOpts(new PreprocessorOptions()) {} 109 110 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 111 : LangOpts(new LangOptions(*X.getLangOpts())), 112 TargetOpts(new TargetOptions(X.getTargetOpts())), 113 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 114 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 115 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 116 117 CompilerInvocationBase::~CompilerInvocationBase() = default; 118 119 //===----------------------------------------------------------------------===// 120 // Deserialization (from args) 121 //===----------------------------------------------------------------------===// 122 123 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 124 DiagnosticsEngine &Diags) { 125 unsigned DefaultOpt = llvm::CodeGenOpt::None; 126 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 127 DefaultOpt = llvm::CodeGenOpt::Default; 128 129 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 130 if (A->getOption().matches(options::OPT_O0)) 131 return llvm::CodeGenOpt::None; 132 133 if (A->getOption().matches(options::OPT_Ofast)) 134 return llvm::CodeGenOpt::Aggressive; 135 136 assert(A->getOption().matches(options::OPT_O)); 137 138 StringRef S(A->getValue()); 139 if (S == "s" || S == "z" || S.empty()) 140 return llvm::CodeGenOpt::Default; 141 142 if (S == "g") 143 return llvm::CodeGenOpt::Less; 144 145 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 146 } 147 148 return DefaultOpt; 149 } 150 151 static unsigned getOptimizationLevelSize(ArgList &Args) { 152 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 153 if (A->getOption().matches(options::OPT_O)) { 154 switch (A->getValue()[0]) { 155 default: 156 return 0; 157 case 's': 158 return 1; 159 case 'z': 160 return 2; 161 } 162 } 163 } 164 return 0; 165 } 166 167 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 168 OptSpecifier GroupWithValue, 169 std::vector<std::string> &Diagnostics) { 170 for (auto *A : Args.filtered(Group)) { 171 if (A->getOption().getKind() == Option::FlagClass) { 172 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 173 // its name (minus the "W" or "R" at the beginning) to the warning list. 174 Diagnostics.push_back( 175 std::string(A->getOption().getName().drop_front(1))); 176 } else if (A->getOption().matches(GroupWithValue)) { 177 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 178 Diagnostics.push_back( 179 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 180 } else { 181 // Otherwise, add its value (for OPT_W_Joined and similar). 182 for (const auto *Arg : A->getValues()) 183 Diagnostics.emplace_back(Arg); 184 } 185 } 186 } 187 188 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 189 // it won't verify the input. 190 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 191 DiagnosticsEngine *Diags); 192 193 static void getAllNoBuiltinFuncValues(ArgList &Args, 194 std::vector<std::string> &Funcs) { 195 SmallVector<const char *, 8> Values; 196 for (const auto &Arg : Args) { 197 const Option &O = Arg->getOption(); 198 if (O.matches(options::OPT_fno_builtin_)) { 199 const char *FuncName = Arg->getValue(); 200 if (Builtin::Context::isBuiltinFunc(FuncName)) 201 Values.push_back(FuncName); 202 } 203 } 204 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 205 } 206 207 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 208 DiagnosticsEngine &Diags) { 209 bool Success = true; 210 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 211 StringRef Name = A->getValue(); 212 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 213 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 214 .Case(CMDFLAG, NAME##Model) 215 #include "clang/StaticAnalyzer/Core/Analyses.def" 216 .Default(NumStores); 217 if (Value == NumStores) { 218 Diags.Report(diag::err_drv_invalid_value) 219 << A->getAsString(Args) << Name; 220 Success = false; 221 } else { 222 Opts.AnalysisStoreOpt = Value; 223 } 224 } 225 226 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 227 StringRef Name = A->getValue(); 228 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 229 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 230 .Case(CMDFLAG, NAME##Model) 231 #include "clang/StaticAnalyzer/Core/Analyses.def" 232 .Default(NumConstraints); 233 if (Value == NumConstraints) { 234 Diags.Report(diag::err_drv_invalid_value) 235 << A->getAsString(Args) << Name; 236 Success = false; 237 } else { 238 Opts.AnalysisConstraintsOpt = Value; 239 } 240 } 241 242 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 243 StringRef Name = A->getValue(); 244 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 245 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 246 .Case(CMDFLAG, PD_##NAME) 247 #include "clang/StaticAnalyzer/Core/Analyses.def" 248 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 249 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 250 Diags.Report(diag::err_drv_invalid_value) 251 << A->getAsString(Args) << Name; 252 Success = false; 253 } else { 254 Opts.AnalysisDiagOpt = Value; 255 } 256 } 257 258 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 259 StringRef Name = A->getValue(); 260 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 261 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 262 .Case(CMDFLAG, NAME) 263 #include "clang/StaticAnalyzer/Core/Analyses.def" 264 .Default(NumPurgeModes); 265 if (Value == NumPurgeModes) { 266 Diags.Report(diag::err_drv_invalid_value) 267 << A->getAsString(Args) << Name; 268 Success = false; 269 } else { 270 Opts.AnalysisPurgeOpt = Value; 271 } 272 } 273 274 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 275 StringRef Name = A->getValue(); 276 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 277 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 278 .Case(CMDFLAG, NAME) 279 #include "clang/StaticAnalyzer/Core/Analyses.def" 280 .Default(NumInliningModes); 281 if (Value == NumInliningModes) { 282 Diags.Report(diag::err_drv_invalid_value) 283 << A->getAsString(Args) << Name; 284 Success = false; 285 } else { 286 Opts.InliningMode = Value; 287 } 288 } 289 290 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 291 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 292 Opts.ShowCheckerHelpDeveloper = 293 Args.hasArg(OPT_analyzer_checker_help_developer); 294 295 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 296 Opts.ShowCheckerOptionAlphaList = 297 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 298 Opts.ShowCheckerOptionDeveloperList = 299 Args.hasArg(OPT_analyzer_checker_option_help_developer); 300 301 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 302 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 303 Opts.ShouldEmitErrorsOnInvalidConfigValue = 304 /* negated */!llvm::StringSwitch<bool>( 305 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 306 .Case("true", true) 307 .Case("false", false) 308 .Default(false); 309 Opts.DisableAllCheckers = Args.hasArg(OPT_analyzer_disable_all_checks); 310 311 Opts.visualizeExplodedGraphWithGraphViz = 312 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 313 Opts.DumpExplodedGraphTo = 314 std::string(Args.getLastArgValue(OPT_analyzer_dump_egraph)); 315 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 316 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 317 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 318 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 319 Opts.AnalyzeNestedBlocks = 320 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 321 Opts.AnalyzeSpecificFunction = 322 std::string(Args.getLastArgValue(OPT_analyze_function)); 323 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 324 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 325 Opts.maxBlockVisitOnPath = 326 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 327 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 328 Opts.InlineMaxStackDepth = 329 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 330 Opts.InlineMaxStackDepth, Diags); 331 332 Opts.CheckersAndPackages.clear(); 333 for (const Arg *A : 334 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 335 A->claim(); 336 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 337 // We can have a list of comma separated checker names, e.g: 338 // '-analyzer-checker=cocoa,unix' 339 StringRef CheckerAndPackageList = A->getValue(); 340 SmallVector<StringRef, 16> CheckersAndPackages; 341 CheckerAndPackageList.split(CheckersAndPackages, ","); 342 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 343 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 344 IsEnabled); 345 } 346 347 // Go through the analyzer configuration options. 348 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 349 350 // We can have a list of comma separated config names, e.g: 351 // '-analyzer-config key1=val1,key2=val2' 352 StringRef configList = A->getValue(); 353 SmallVector<StringRef, 4> configVals; 354 configList.split(configVals, ","); 355 for (const auto &configVal : configVals) { 356 StringRef key, val; 357 std::tie(key, val) = configVal.split("="); 358 if (val.empty()) { 359 Diags.Report(SourceLocation(), 360 diag::err_analyzer_config_no_value) << configVal; 361 Success = false; 362 break; 363 } 364 if (val.find('=') != StringRef::npos) { 365 Diags.Report(SourceLocation(), 366 diag::err_analyzer_config_multiple_values) 367 << configVal; 368 Success = false; 369 break; 370 } 371 372 // TODO: Check checker options too, possibly in CheckerRegistry. 373 // Leave unknown non-checker configs unclaimed. 374 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 375 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 376 Diags.Report(diag::err_analyzer_config_unknown) << key; 377 continue; 378 } 379 380 A->claim(); 381 Opts.Config[key] = std::string(val); 382 } 383 } 384 385 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 386 parseAnalyzerConfigs(Opts, &Diags); 387 else 388 parseAnalyzerConfigs(Opts, nullptr); 389 390 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 391 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 392 if (i != 0) 393 os << " "; 394 os << Args.getArgString(i); 395 } 396 os.flush(); 397 398 return Success; 399 } 400 401 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 402 StringRef OptionName, StringRef DefaultVal) { 403 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 404 } 405 406 static void initOption(AnalyzerOptions::ConfigTable &Config, 407 DiagnosticsEngine *Diags, 408 StringRef &OptionField, StringRef Name, 409 StringRef DefaultVal) { 410 // String options may be known to invalid (e.g. if the expected string is a 411 // file name, but the file does not exist), those will have to be checked in 412 // parseConfigs. 413 OptionField = getStringOption(Config, Name, DefaultVal); 414 } 415 416 static void initOption(AnalyzerOptions::ConfigTable &Config, 417 DiagnosticsEngine *Diags, 418 bool &OptionField, StringRef Name, bool DefaultVal) { 419 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 420 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 421 .Case("true", true) 422 .Case("false", false) 423 .Default(None); 424 425 if (!PossiblyInvalidVal) { 426 if (Diags) 427 Diags->Report(diag::err_analyzer_config_invalid_input) 428 << Name << "a boolean"; 429 else 430 OptionField = DefaultVal; 431 } else 432 OptionField = PossiblyInvalidVal.getValue(); 433 } 434 435 static void initOption(AnalyzerOptions::ConfigTable &Config, 436 DiagnosticsEngine *Diags, 437 unsigned &OptionField, StringRef Name, 438 unsigned DefaultVal) { 439 440 OptionField = DefaultVal; 441 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 442 .getAsInteger(0, OptionField); 443 if (Diags && HasFailed) 444 Diags->Report(diag::err_analyzer_config_invalid_input) 445 << Name << "an unsigned"; 446 } 447 448 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 449 DiagnosticsEngine *Diags) { 450 // TODO: There's no need to store the entire configtable, it'd be plenty 451 // enough tostore checker options. 452 453 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 454 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 455 456 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 457 SHALLOW_VAL, DEEP_VAL) \ 458 switch (AnOpts.getUserMode()) { \ 459 case UMK_Shallow: \ 460 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 461 break; \ 462 case UMK_Deep: \ 463 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 464 break; \ 465 } \ 466 467 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 468 #undef ANALYZER_OPTION 469 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 470 471 // At this point, AnalyzerOptions is configured. Let's validate some options. 472 473 // FIXME: Here we try to validate the silenced checkers or packages are valid. 474 // The current approach only validates the registered checkers which does not 475 // contain the runtime enabled checkers and optimally we would validate both. 476 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 477 std::vector<StringRef> Checkers = 478 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 479 std::vector<StringRef> Packages = 480 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 481 482 SmallVector<StringRef, 16> CheckersAndPackages; 483 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 484 485 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 486 if (Diags) { 487 bool IsChecker = CheckerOrPackage.contains('.'); 488 bool IsValidName = 489 IsChecker 490 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 491 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 492 493 if (!IsValidName) 494 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 495 << CheckerOrPackage; 496 } 497 498 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 499 } 500 } 501 502 if (!Diags) 503 return; 504 505 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 506 Diags->Report(diag::err_analyzer_config_invalid_input) 507 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 508 509 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 510 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 511 << "a filename"; 512 513 if (!AnOpts.ModelPath.empty() && 514 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 515 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 516 << "a filename"; 517 } 518 519 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 520 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 521 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 522 return true; 523 } 524 525 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 526 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 527 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 528 } 529 530 static llvm::Reloc::Model getRelocModel(ArgList &Args, 531 DiagnosticsEngine &Diags) { 532 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 533 StringRef Value = A->getValue(); 534 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 535 .Case("static", llvm::Reloc::Static) 536 .Case("pic", llvm::Reloc::PIC_) 537 .Case("ropi", llvm::Reloc::ROPI) 538 .Case("rwpi", llvm::Reloc::RWPI) 539 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 540 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 541 .Default(None); 542 if (RM.hasValue()) 543 return *RM; 544 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 545 } 546 return llvm::Reloc::PIC_; 547 } 548 549 /// Create a new Regex instance out of the string value in \p RpassArg. 550 /// It returns a pointer to the newly generated Regex instance. 551 static std::shared_ptr<llvm::Regex> 552 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 553 Arg *RpassArg) { 554 StringRef Val = RpassArg->getValue(); 555 std::string RegexError; 556 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 557 if (!Pattern->isValid(RegexError)) { 558 Diags.Report(diag::err_drv_optimization_remark_pattern) 559 << RegexError << RpassArg->getAsString(Args); 560 Pattern.reset(); 561 } 562 return Pattern; 563 } 564 565 static bool parseDiagnosticLevelMask(StringRef FlagName, 566 const std::vector<std::string> &Levels, 567 DiagnosticsEngine *Diags, 568 DiagnosticLevelMask &M) { 569 bool Success = true; 570 for (const auto &Level : Levels) { 571 DiagnosticLevelMask const PM = 572 llvm::StringSwitch<DiagnosticLevelMask>(Level) 573 .Case("note", DiagnosticLevelMask::Note) 574 .Case("remark", DiagnosticLevelMask::Remark) 575 .Case("warning", DiagnosticLevelMask::Warning) 576 .Case("error", DiagnosticLevelMask::Error) 577 .Default(DiagnosticLevelMask::None); 578 if (PM == DiagnosticLevelMask::None) { 579 Success = false; 580 if (Diags) 581 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 582 } 583 M = M | PM; 584 } 585 return Success; 586 } 587 588 static void parseSanitizerKinds(StringRef FlagName, 589 const std::vector<std::string> &Sanitizers, 590 DiagnosticsEngine &Diags, SanitizerSet &S) { 591 for (const auto &Sanitizer : Sanitizers) { 592 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 593 if (K == SanitizerMask()) 594 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 595 else 596 S.set(K, true); 597 } 598 } 599 600 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 601 ArgList &Args, DiagnosticsEngine &D, 602 XRayInstrSet &S) { 603 llvm::SmallVector<StringRef, 2> BundleParts; 604 llvm::SplitString(Bundle, BundleParts, ","); 605 for (const auto &B : BundleParts) { 606 auto Mask = parseXRayInstrValue(B); 607 if (Mask == XRayInstrKind::None) 608 if (B != "none") 609 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 610 else 611 S.Mask = Mask; 612 else if (Mask == XRayInstrKind::All) 613 S.Mask = Mask; 614 else 615 S.set(Mask, true); 616 } 617 } 618 619 // Set the profile kind for fprofile-instrument. 620 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 621 DiagnosticsEngine &Diags) { 622 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 623 if (A == nullptr) 624 return; 625 StringRef S = A->getValue(); 626 unsigned I = llvm::StringSwitch<unsigned>(S) 627 .Case("none", CodeGenOptions::ProfileNone) 628 .Case("clang", CodeGenOptions::ProfileClangInstr) 629 .Case("llvm", CodeGenOptions::ProfileIRInstr) 630 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 631 .Default(~0U); 632 if (I == ~0U) { 633 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 634 << S; 635 return; 636 } 637 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 638 Opts.setProfileInstr(Instrumentor); 639 } 640 641 // Set the profile kind using fprofile-instrument-use-path. 642 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 643 const Twine &ProfileName) { 644 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 645 // In error, return silently and let Clang PGOUse report the error message. 646 if (auto E = ReaderOrErr.takeError()) { 647 llvm::consumeError(std::move(E)); 648 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 649 return; 650 } 651 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 652 std::move(ReaderOrErr.get()); 653 if (PGOReader->isIRLevelProfile()) { 654 if (PGOReader->hasCSIRLevelProfile()) 655 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 656 else 657 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 658 } else 659 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 660 } 661 662 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 663 DiagnosticsEngine &Diags, 664 const TargetOptions &TargetOpts, 665 const FrontendOptions &FrontendOpts) { 666 bool Success = true; 667 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 668 669 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 670 // TODO: This could be done in Driver 671 unsigned MaxOptLevel = 3; 672 if (OptimizationLevel > MaxOptLevel) { 673 // If the optimization level is not supported, fall back on the default 674 // optimization 675 Diags.Report(diag::warn_drv_optimization_value) 676 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 677 OptimizationLevel = MaxOptLevel; 678 } 679 Opts.OptimizationLevel = OptimizationLevel; 680 681 // At O0 we want to fully disable inlining outside of cases marked with 682 // 'alwaysinline' that are required for correctness. 683 Opts.setInlining((Opts.OptimizationLevel == 0) 684 ? CodeGenOptions::OnlyAlwaysInlining 685 : CodeGenOptions::NormalInlining); 686 // Explicit inlining flags can disable some or all inlining even at 687 // optimization levels above zero. 688 if (Arg *InlineArg = Args.getLastArg( 689 options::OPT_finline_functions, options::OPT_finline_hint_functions, 690 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 691 if (Opts.OptimizationLevel > 0) { 692 const Option &InlineOpt = InlineArg->getOption(); 693 if (InlineOpt.matches(options::OPT_finline_functions)) 694 Opts.setInlining(CodeGenOptions::NormalInlining); 695 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 696 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 697 else 698 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 699 } 700 } 701 702 Opts.ExperimentalNewPassManager = Args.hasFlag( 703 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 704 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 705 706 Opts.DebugPassManager = 707 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 708 /* Default */ false); 709 710 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 711 StringRef Name = A->getValue(); 712 if (Name == "Accelerate") 713 Opts.setVecLib(CodeGenOptions::Accelerate); 714 else if (Name == "MASSV") 715 Opts.setVecLib(CodeGenOptions::MASSV); 716 else if (Name == "SVML") 717 Opts.setVecLib(CodeGenOptions::SVML); 718 else if (Name == "none") 719 Opts.setVecLib(CodeGenOptions::NoLibrary); 720 else 721 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 722 } 723 724 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 725 unsigned Val = 726 llvm::StringSwitch<unsigned>(A->getValue()) 727 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 728 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 729 .Case("constructor", codegenoptions::DebugInfoConstructor) 730 .Case("limited", codegenoptions::LimitedDebugInfo) 731 .Case("standalone", codegenoptions::FullDebugInfo) 732 .Default(~0U); 733 if (Val == ~0U) 734 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 735 << A->getValue(); 736 else 737 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 738 } 739 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 740 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 741 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 742 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 743 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 744 .Default(~0U); 745 if (Val == ~0U) 746 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 747 << A->getValue(); 748 else 749 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 750 } 751 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 752 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 753 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 754 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 755 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 756 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 757 Opts.VirtualFunctionElimination = 758 Args.hasArg(OPT_fvirtual_function_elimination); 759 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 760 Opts.SplitDwarfFile = std::string(Args.getLastArgValue(OPT_split_dwarf_file)); 761 Opts.SplitDwarfOutput = 762 std::string(Args.getLastArgValue(OPT_split_dwarf_output)); 763 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 764 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 765 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 766 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 767 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 768 769 Opts.ForceDwarfFrameSection = 770 Args.hasFlag(OPT_fforce_dwarf_frame, OPT_fno_force_dwarf_frame, false); 771 772 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 773 auto Split = StringRef(Arg).split('='); 774 Opts.DebugPrefixMap.insert( 775 {std::string(Split.first), std::string(Split.second)}); 776 } 777 778 if (const Arg *A = 779 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 780 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 781 782 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 783 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 784 785 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 786 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 787 llvm::Triple::arm, llvm::Triple::armeb}; 788 789 llvm::Triple T(TargetOpts.Triple); 790 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 791 llvm::is_contained(DebugEntryValueArchs, T.getArch())) { 792 Opts.EnableDebugEntryValues = Args.hasArg(OPT_femit_debug_entry_values); 793 Opts.EmitCallSiteInfo = true; 794 } 795 796 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 797 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 798 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 799 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 800 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 801 OPT_fuse_register_sized_bitfield_access); 802 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 803 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 804 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 805 Args.hasArg(OPT_new_struct_path_tbaa); 806 Opts.FineGrainedBitfieldAccesses = 807 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 808 OPT_fno_fine_grained_bitfield_accesses, false); 809 Opts.DwarfDebugFlags = 810 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 811 Opts.RecordCommandLine = 812 std::string(Args.getLastArgValue(OPT_record_command_line)); 813 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 814 Opts.NoCommon = !Args.hasArg(OPT_fcommon); 815 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables); 816 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 817 Opts.OptimizeSize = getOptimizationLevelSize(Args); 818 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 819 Args.hasArg(OPT_ffreestanding)); 820 if (Opts.SimplifyLibCalls) 821 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 822 Opts.UnrollLoops = 823 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 824 (Opts.OptimizationLevel > 1)); 825 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 826 827 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 828 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 829 Opts.SampleProfileFile = 830 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 831 Opts.DebugInfoForProfiling = Args.hasFlag( 832 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 833 Opts.DebugNameTable = static_cast<unsigned>( 834 Args.hasArg(OPT_ggnu_pubnames) 835 ? llvm::DICompileUnit::DebugNameTableKind::GNU 836 : Args.hasArg(OPT_gpubnames) 837 ? llvm::DICompileUnit::DebugNameTableKind::Default 838 : llvm::DICompileUnit::DebugNameTableKind::None); 839 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 840 841 setPGOInstrumentor(Opts, Args, Diags); 842 Opts.InstrProfileOutput = 843 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 844 Opts.ProfileInstrumentUsePath = 845 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 846 if (!Opts.ProfileInstrumentUsePath.empty()) 847 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 848 Opts.ProfileRemappingFile = 849 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 850 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 851 Diags.Report(diag::err_drv_argument_only_allowed_with) 852 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 853 << "-fexperimental-new-pass-manager"; 854 } 855 856 Opts.CoverageMapping = 857 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 858 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 859 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 860 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 861 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 862 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 863 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 864 Opts.RegisterGlobalDtorsWithAtExit = 865 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 866 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 867 Opts.CodeModel = TargetOpts.CodeModel; 868 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 869 870 // Handle -mframe-pointer option. 871 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 872 CodeGenOptions::FramePointerKind FP; 873 StringRef Name = A->getValue(); 874 bool ValidFP = true; 875 if (Name == "none") 876 FP = CodeGenOptions::FramePointerKind::None; 877 else if (Name == "non-leaf") 878 FP = CodeGenOptions::FramePointerKind::NonLeaf; 879 else if (Name == "all") 880 FP = CodeGenOptions::FramePointerKind::All; 881 else { 882 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 883 Success = false; 884 ValidFP = false; 885 } 886 if (ValidFP) 887 Opts.setFramePointer(FP); 888 } 889 890 Opts.DisableFree = Args.hasArg(OPT_disable_free); 891 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 892 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 893 Opts.NoEscapingBlockTailCalls = 894 Args.hasArg(OPT_fno_escaping_block_tail_calls); 895 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 896 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 897 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 898 Args.hasArg(OPT_cl_fast_relaxed_math); 899 Opts.LimitFloatPrecision = 900 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 901 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 902 Args.hasArg(OPT_cl_finite_math_only) || 903 Args.hasArg(OPT_cl_fast_relaxed_math)); 904 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 905 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 906 Args.hasArg(OPT_cl_finite_math_only) || 907 Args.hasArg(OPT_cl_fast_relaxed_math)); 908 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 909 Args.hasArg(OPT_cl_no_signed_zeros) || 910 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 911 Args.hasArg(OPT_cl_fast_relaxed_math)); 912 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 913 Opts.CorrectlyRoundedDivSqrt = 914 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 915 Opts.UniformWGSize = 916 Args.hasArg(OPT_cl_uniform_work_group_size); 917 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 918 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 919 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 920 Opts.StrictFloatCastOverflow = 921 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 922 923 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 924 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 925 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 926 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 927 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 928 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 929 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 930 Opts.IncrementalLinkerCompatible = 931 Args.hasArg(OPT_mincremental_linker_compatible); 932 Opts.PIECopyRelocations = 933 Args.hasArg(OPT_mpie_copy_relocations); 934 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 935 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 936 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 937 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 938 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 939 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 940 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 941 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 942 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 943 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 944 Args.hasArg(OPT_cl_fast_relaxed_math); 945 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 946 Opts.RelocationModel = getRelocModel(Args, Diags); 947 Opts.ThreadModel = 948 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 949 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 950 Diags.Report(diag::err_drv_invalid_value) 951 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 952 << Opts.ThreadModel; 953 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 954 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 955 956 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 957 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 958 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 959 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 960 961 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 962 963 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 964 965 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 966 967 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 968 969 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 970 Opts.PrepareForThinLTO = false; 971 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 972 StringRef S = A->getValue(); 973 if (S == "thin") 974 Opts.PrepareForThinLTO = true; 975 else if (S != "full") 976 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 977 } 978 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 979 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 980 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 981 if (IK.getLanguage() != Language::LLVM_IR) 982 Diags.Report(diag::err_drv_argument_only_allowed_with) 983 << A->getAsString(Args) << "-x ir"; 984 Opts.ThinLTOIndexFile = 985 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 986 } 987 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 988 Opts.SaveTempsFilePrefix = 989 llvm::StringSwitch<std::string>(A->getValue()) 990 .Case("obj", FrontendOpts.OutputFile) 991 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 992 993 Opts.ThinLinkBitcodeFile = 994 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 995 996 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 997 998 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 999 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 1000 1001 Opts.PreferVectorWidth = 1002 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1003 1004 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1005 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1006 1007 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1008 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1009 1010 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 1011 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1012 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1013 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1014 Opts.CoverageDataFile = 1015 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1016 Opts.CoverageNotesFile = 1017 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1018 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 1019 Opts.CoverageNoFunctionNamesInData = 1020 Args.hasArg(OPT_coverage_no_function_names_in_data); 1021 Opts.ProfileFilterFiles = 1022 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1023 Opts.ProfileExcludeFiles = 1024 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1025 Opts.CoverageExitBlockBeforeBody = 1026 Args.hasArg(OPT_coverage_exit_block_before_body); 1027 if (Args.hasArg(OPT_coverage_version_EQ)) { 1028 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1029 if (CoverageVersion.size() != 4) { 1030 Diags.Report(diag::err_drv_invalid_value) 1031 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1032 << CoverageVersion; 1033 } else { 1034 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1035 } 1036 } 1037 } 1038 // Handle -fembed-bitcode option. 1039 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1040 StringRef Name = A->getValue(); 1041 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1042 .Case("off", CodeGenOptions::Embed_Off) 1043 .Case("all", CodeGenOptions::Embed_All) 1044 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1045 .Case("marker", CodeGenOptions::Embed_Marker) 1046 .Default(~0U); 1047 if (Model == ~0U) { 1048 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1049 Success = false; 1050 } else 1051 Opts.setEmbedBitcode( 1052 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1053 } 1054 // FIXME: For backend options that are not yet recorded as function 1055 // attributes in the IR, keep track of them so we can embed them in a 1056 // separate data section and use them when building the bitcode. 1057 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1058 for (const auto &A : Args) { 1059 // Do not encode output and input. 1060 if (A->getOption().getID() == options::OPT_o || 1061 A->getOption().getID() == options::OPT_INPUT || 1062 A->getOption().getID() == options::OPT_x || 1063 A->getOption().getID() == options::OPT_fembed_bitcode || 1064 (A->getOption().getGroup().isValid() && 1065 A->getOption().getGroup().getID() == options::OPT_W_Group)) 1066 continue; 1067 ArgStringList ASL; 1068 A->render(Args, ASL); 1069 for (const auto &arg : ASL) { 1070 StringRef ArgStr(arg); 1071 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1072 // using \00 to separate each commandline options. 1073 Opts.CmdArgs.push_back('\0'); 1074 } 1075 } 1076 } 1077 1078 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1079 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1080 Opts.InstrumentFunctionsAfterInlining = 1081 Args.hasArg(OPT_finstrument_functions_after_inlining); 1082 Opts.InstrumentFunctionEntryBare = 1083 Args.hasArg(OPT_finstrument_function_entry_bare); 1084 1085 Opts.XRayInstrumentFunctions = 1086 Args.hasArg(OPT_fxray_instrument); 1087 Opts.XRayAlwaysEmitCustomEvents = 1088 Args.hasArg(OPT_fxray_always_emit_customevents); 1089 Opts.XRayAlwaysEmitTypedEvents = 1090 Args.hasArg(OPT_fxray_always_emit_typedevents); 1091 Opts.XRayInstructionThreshold = 1092 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1093 Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops); 1094 1095 auto XRayInstrBundles = 1096 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1097 if (XRayInstrBundles.empty()) 1098 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1099 else 1100 for (const auto &A : XRayInstrBundles) 1101 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1102 Diags, Opts.XRayInstrumentationBundle); 1103 1104 Opts.PatchableFunctionEntryCount = 1105 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1106 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1107 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1108 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1109 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1110 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1111 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1112 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1113 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1114 1115 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1116 StringRef Name = A->getValue(); 1117 if (Name == "full") { 1118 Opts.CFProtectionReturn = 1; 1119 Opts.CFProtectionBranch = 1; 1120 } else if (Name == "return") 1121 Opts.CFProtectionReturn = 1; 1122 else if (Name == "branch") 1123 Opts.CFProtectionBranch = 1; 1124 else if (Name != "none") { 1125 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1126 Success = false; 1127 } 1128 } 1129 1130 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1131 OPT_compress_debug_sections_EQ)) { 1132 if (A->getOption().getID() == OPT_compress_debug_sections) { 1133 // TODO: be more clever about the compression type auto-detection 1134 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1135 } else { 1136 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1137 .Case("none", llvm::DebugCompressionType::None) 1138 .Case("zlib", llvm::DebugCompressionType::Z) 1139 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1140 .Default(llvm::DebugCompressionType::None); 1141 Opts.setCompressDebugSections(DCT); 1142 } 1143 } 1144 1145 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1146 Opts.DebugCompilationDir = 1147 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1148 for (auto *A : 1149 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1150 CodeGenOptions::BitcodeFileToLink F; 1151 F.Filename = A->getValue(); 1152 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1153 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1154 // When linking CUDA bitcode, propagate function attributes so that 1155 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1156 F.PropagateAttrs = true; 1157 F.Internalize = true; 1158 } 1159 Opts.LinkBitcodeFiles.push_back(F); 1160 } 1161 Opts.SanitizeCoverageType = 1162 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1163 Opts.SanitizeCoverageIndirectCalls = 1164 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1165 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1166 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1167 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1168 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1169 Opts.SanitizeCoverage8bitCounters = 1170 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1171 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1172 Opts.SanitizeCoverageTracePCGuard = 1173 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1174 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1175 Opts.SanitizeCoverageInline8bitCounters = 1176 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1177 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1178 Opts.SanitizeCoverageStackDepth = 1179 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1180 Opts.SanitizeMemoryTrackOrigins = 1181 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1182 Opts.SanitizeMemoryUseAfterDtor = 1183 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1184 OPT_fno_sanitize_memory_use_after_dtor, 1185 false); 1186 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1187 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1188 Opts.SanitizeCfiICallGeneralizePointers = 1189 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1190 Opts.SanitizeCfiCanonicalJumpTables = 1191 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1192 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1193 if (Arg *A = Args.getLastArg( 1194 OPT_fsanitize_address_poison_custom_array_cookie, 1195 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1196 Opts.SanitizeAddressPoisonCustomArrayCookie = 1197 A->getOption().getID() == 1198 OPT_fsanitize_address_poison_custom_array_cookie; 1199 } 1200 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1201 OPT_fno_sanitize_address_use_after_scope)) { 1202 Opts.SanitizeAddressUseAfterScope = 1203 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1204 } 1205 Opts.SanitizeAddressGlobalsDeadStripping = 1206 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1207 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1208 OPT_fno_sanitize_address_use_odr_indicator)) { 1209 Opts.SanitizeAddressUseOdrIndicator = 1210 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1211 } 1212 Opts.SSPBufferSize = 1213 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1214 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1215 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1216 StringRef Val = A->getValue(); 1217 unsigned StackAlignment = Opts.StackAlignment; 1218 Val.getAsInteger(10, StackAlignment); 1219 Opts.StackAlignment = StackAlignment; 1220 } 1221 1222 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1223 StringRef Val = A->getValue(); 1224 unsigned StackProbeSize = Opts.StackProbeSize; 1225 Val.getAsInteger(0, StackProbeSize); 1226 Opts.StackProbeSize = StackProbeSize; 1227 } 1228 1229 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1230 1231 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1232 1233 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1234 StringRef Name = A->getValue(); 1235 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1236 .Case("legacy", CodeGenOptions::Legacy) 1237 .Case("non-legacy", CodeGenOptions::NonLegacy) 1238 .Case("mixed", CodeGenOptions::Mixed) 1239 .Default(~0U); 1240 if (Method == ~0U) { 1241 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1242 Success = false; 1243 } else { 1244 Opts.setObjCDispatchMethod( 1245 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1246 } 1247 } 1248 1249 1250 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1251 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1252 1253 if (Args.getLastArg(OPT_femulated_tls) || 1254 Args.getLastArg(OPT_fno_emulated_tls)) { 1255 Opts.ExplicitEmulatedTLS = true; 1256 Opts.EmulatedTLS = 1257 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1258 } 1259 1260 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1261 StringRef Name = A->getValue(); 1262 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1263 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1264 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1265 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1266 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1267 .Default(~0U); 1268 if (Model == ~0U) { 1269 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1270 Success = false; 1271 } else { 1272 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1273 } 1274 } 1275 1276 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1277 1278 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1279 StringRef Val = A->getValue(); 1280 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1281 if (!Opts.FPDenormalMode.isValid()) 1282 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1283 } 1284 1285 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1286 StringRef Val = A->getValue(); 1287 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1288 if (!Opts.FP32DenormalMode.isValid()) 1289 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1290 } 1291 1292 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1293 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1294 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1295 } else { 1296 assert(A->getOption().matches(OPT_freg_struct_return)); 1297 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1298 } 1299 } 1300 1301 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1302 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1303 bool NeedLocTracking = false; 1304 1305 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1306 if (!Opts.OptRecordFile.empty()) 1307 NeedLocTracking = true; 1308 1309 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1310 Opts.OptRecordPasses = A->getValue(); 1311 NeedLocTracking = true; 1312 } 1313 1314 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1315 Opts.OptRecordFormat = A->getValue(); 1316 NeedLocTracking = true; 1317 } 1318 1319 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1320 Opts.OptimizationRemarkPattern = 1321 GenerateOptimizationRemarkRegex(Diags, Args, A); 1322 NeedLocTracking = true; 1323 } 1324 1325 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1326 Opts.OptimizationRemarkMissedPattern = 1327 GenerateOptimizationRemarkRegex(Diags, Args, A); 1328 NeedLocTracking = true; 1329 } 1330 1331 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1332 Opts.OptimizationRemarkAnalysisPattern = 1333 GenerateOptimizationRemarkRegex(Diags, Args, A); 1334 NeedLocTracking = true; 1335 } 1336 1337 Opts.DiagnosticsWithHotness = 1338 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1339 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1340 bool UsingProfile = UsingSampleProfile || 1341 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1342 1343 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1344 // An IR file will contain PGO as metadata 1345 IK.getLanguage() != Language::LLVM_IR) 1346 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1347 << "-fdiagnostics-show-hotness"; 1348 1349 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1350 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1351 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1352 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1353 << "-fdiagnostics-hotness-threshold="; 1354 1355 // If the user requested to use a sample profile for PGO, then the 1356 // backend will need to track source location information so the profile 1357 // can be incorporated into the IR. 1358 if (UsingSampleProfile) 1359 NeedLocTracking = true; 1360 1361 // If the user requested a flag that requires source locations available in 1362 // the backend, make sure that the backend tracks source location information. 1363 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1364 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1365 1366 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1367 1368 // Parse -fsanitize-recover= arguments. 1369 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1370 parseSanitizerKinds("-fsanitize-recover=", 1371 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1372 Opts.SanitizeRecover); 1373 parseSanitizerKinds("-fsanitize-trap=", 1374 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1375 Opts.SanitizeTrap); 1376 1377 Opts.CudaGpuBinaryFileName = 1378 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1379 1380 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1381 1382 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1383 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1384 1385 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1386 1387 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1388 1389 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1390 StringRef SignScope = A->getValue(); 1391 1392 if (SignScope.equals_lower("none")) 1393 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1394 else if (SignScope.equals_lower("all")) 1395 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1396 else if (SignScope.equals_lower("non-leaf")) 1397 Opts.setSignReturnAddress( 1398 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1399 else 1400 Diags.Report(diag::err_drv_invalid_value) 1401 << A->getAsString(Args) << SignScope; 1402 1403 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1404 StringRef SignKey = A->getValue(); 1405 if (!SignScope.empty() && !SignKey.empty()) { 1406 if (SignKey.equals_lower("a_key")) 1407 Opts.setSignReturnAddressKey( 1408 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1409 else if (SignKey.equals_lower("b_key")) 1410 Opts.setSignReturnAddressKey( 1411 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1412 else 1413 Diags.Report(diag::err_drv_invalid_value) 1414 << A->getAsString(Args) << SignKey; 1415 } 1416 } 1417 } 1418 1419 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1420 1421 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1422 1423 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1424 1425 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1426 1427 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1428 1429 Opts.SymbolPartition = 1430 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1431 1432 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1433 return Success; 1434 } 1435 1436 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1437 ArgList &Args) { 1438 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1439 Opts.Targets = Args.getAllArgValues(OPT_MT); 1440 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1441 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1442 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1443 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1444 Opts.HeaderIncludeOutputFile = 1445 std::string(Args.getLastArgValue(OPT_header_include_file)); 1446 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1447 if (Args.hasArg(OPT_show_includes)) { 1448 // Writing both /showIncludes and preprocessor output to stdout 1449 // would produce interleaved output, so use stderr for /showIncludes. 1450 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1451 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1452 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1453 else 1454 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1455 } else { 1456 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1457 } 1458 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1459 Opts.ModuleDependencyOutputDir = 1460 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1461 if (Args.hasArg(OPT_MV)) 1462 Opts.OutputFormat = DependencyOutputFormat::NMake; 1463 // Add sanitizer blacklists as extra dependencies. 1464 // They won't be discovered by the regular preprocessor, so 1465 // we let make / ninja to know about this implicit dependency. 1466 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1467 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1468 StringRef Val = A->getValue(); 1469 if (Val.find('=') == StringRef::npos) 1470 Opts.ExtraDeps.push_back(std::string(Val)); 1471 } 1472 if (Opts.IncludeSystemHeaders) { 1473 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1474 StringRef Val = A->getValue(); 1475 if (Val.find('=') == StringRef::npos) 1476 Opts.ExtraDeps.push_back(std::string(Val)); 1477 } 1478 } 1479 } 1480 1481 // Propagate the extra dependencies. 1482 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1483 Opts.ExtraDeps.push_back(A->getValue()); 1484 } 1485 1486 // Only the -fmodule-file=<file> form. 1487 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1488 StringRef Val = A->getValue(); 1489 if (Val.find('=') == StringRef::npos) 1490 Opts.ExtraDeps.push_back(std::string(Val)); 1491 } 1492 } 1493 1494 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1495 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1496 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1497 // Support both clang's -f[no-]color-diagnostics and gcc's 1498 // -f[no-]diagnostics-colors[=never|always|auto]. 1499 enum { 1500 Colors_On, 1501 Colors_Off, 1502 Colors_Auto 1503 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1504 for (auto *A : Args) { 1505 const Option &O = A->getOption(); 1506 if (O.matches(options::OPT_fcolor_diagnostics) || 1507 O.matches(options::OPT_fdiagnostics_color)) { 1508 ShowColors = Colors_On; 1509 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1510 O.matches(options::OPT_fno_diagnostics_color)) { 1511 ShowColors = Colors_Off; 1512 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1513 StringRef Value(A->getValue()); 1514 if (Value == "always") 1515 ShowColors = Colors_On; 1516 else if (Value == "never") 1517 ShowColors = Colors_Off; 1518 else if (Value == "auto") 1519 ShowColors = Colors_Auto; 1520 } 1521 } 1522 return ShowColors == Colors_On || 1523 (ShowColors == Colors_Auto && 1524 llvm::sys::Process::StandardErrHasColors()); 1525 } 1526 1527 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1528 DiagnosticsEngine *Diags) { 1529 bool Success = true; 1530 for (const auto &Prefix : VerifyPrefixes) { 1531 // Every prefix must start with a letter and contain only alphanumeric 1532 // characters, hyphens, and underscores. 1533 auto BadChar = llvm::find_if(Prefix, [](char C) { 1534 return !isAlphanumeric(C) && C != '-' && C != '_'; 1535 }); 1536 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1537 Success = false; 1538 if (Diags) { 1539 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1540 Diags->Report(diag::note_drv_verify_prefix_spelling); 1541 } 1542 } 1543 } 1544 return Success; 1545 } 1546 1547 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1548 DiagnosticsEngine *Diags, 1549 bool DefaultDiagColor, bool DefaultShowOpt) { 1550 bool Success = true; 1551 1552 Opts.DiagnosticLogFile = 1553 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1554 if (Arg *A = 1555 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1556 Opts.DiagnosticSerializationFile = A->getValue(); 1557 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1558 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1559 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1560 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1561 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1562 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1563 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1564 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1565 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1566 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1567 Opts.ShowOptionNames = 1568 Args.hasFlag(OPT_fdiagnostics_show_option, 1569 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1570 1571 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1572 1573 // Default behavior is to not to show note include stacks. 1574 Opts.ShowNoteIncludeStack = false; 1575 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1576 OPT_fno_diagnostics_show_note_include_stack)) 1577 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1578 Opts.ShowNoteIncludeStack = true; 1579 1580 StringRef ShowOverloads = 1581 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1582 if (ShowOverloads == "best") 1583 Opts.setShowOverloads(Ovl_Best); 1584 else if (ShowOverloads == "all") 1585 Opts.setShowOverloads(Ovl_All); 1586 else { 1587 Success = false; 1588 if (Diags) 1589 Diags->Report(diag::err_drv_invalid_value) 1590 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1591 << ShowOverloads; 1592 } 1593 1594 StringRef ShowCategory = 1595 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1596 if (ShowCategory == "none") 1597 Opts.ShowCategories = 0; 1598 else if (ShowCategory == "id") 1599 Opts.ShowCategories = 1; 1600 else if (ShowCategory == "name") 1601 Opts.ShowCategories = 2; 1602 else { 1603 Success = false; 1604 if (Diags) 1605 Diags->Report(diag::err_drv_invalid_value) 1606 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1607 << ShowCategory; 1608 } 1609 1610 StringRef Format = 1611 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1612 if (Format == "clang") 1613 Opts.setFormat(DiagnosticOptions::Clang); 1614 else if (Format == "msvc") 1615 Opts.setFormat(DiagnosticOptions::MSVC); 1616 else if (Format == "msvc-fallback") { 1617 Opts.setFormat(DiagnosticOptions::MSVC); 1618 Opts.CLFallbackMode = true; 1619 } else if (Format == "vi") 1620 Opts.setFormat(DiagnosticOptions::Vi); 1621 else { 1622 Success = false; 1623 if (Diags) 1624 Diags->Report(diag::err_drv_invalid_value) 1625 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1626 << Format; 1627 } 1628 1629 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1630 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1631 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1632 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1633 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1634 if (Args.hasArg(OPT_verify)) 1635 Opts.VerifyPrefixes.push_back("expected"); 1636 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1637 // then sort it to prepare for fast lookup using std::binary_search. 1638 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1639 Opts.VerifyDiagnostics = false; 1640 Success = false; 1641 } 1642 else 1643 llvm::sort(Opts.VerifyPrefixes); 1644 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1645 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1646 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1647 Diags, DiagMask); 1648 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1649 DiagMask = DiagnosticLevelMask::All; 1650 Opts.setVerifyIgnoreUnexpected(DiagMask); 1651 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1652 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1653 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1654 Opts.MacroBacktraceLimit = 1655 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1656 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1657 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1658 Args, OPT_ftemplate_backtrace_limit, 1659 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1660 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1661 Args, OPT_fconstexpr_backtrace_limit, 1662 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1663 Opts.SpellCheckingLimit = getLastArgIntValue( 1664 Args, OPT_fspell_checking_limit, 1665 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1666 Opts.SnippetLineLimit = getLastArgIntValue( 1667 Args, OPT_fcaret_diagnostics_max_lines, 1668 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1669 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1670 DiagnosticOptions::DefaultTabStop, Diags); 1671 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1672 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1673 if (Diags) 1674 Diags->Report(diag::warn_ignoring_ftabstop_value) 1675 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1676 } 1677 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1678 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1679 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1680 1681 return Success; 1682 } 1683 1684 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1685 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1686 } 1687 1688 /// Parse the argument to the -ftest-module-file-extension 1689 /// command-line argument. 1690 /// 1691 /// \returns true on error, false on success. 1692 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1693 std::string &BlockName, 1694 unsigned &MajorVersion, 1695 unsigned &MinorVersion, 1696 bool &Hashed, 1697 std::string &UserInfo) { 1698 SmallVector<StringRef, 5> Args; 1699 Arg.split(Args, ':', 5); 1700 if (Args.size() < 5) 1701 return true; 1702 1703 BlockName = std::string(Args[0]); 1704 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1705 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1706 if (Args[3].getAsInteger(2, Hashed)) return true; 1707 if (Args.size() > 4) 1708 UserInfo = std::string(Args[4]); 1709 return false; 1710 } 1711 1712 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1713 DiagnosticsEngine &Diags, 1714 bool &IsHeaderFile) { 1715 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1716 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1717 switch (A->getOption().getID()) { 1718 default: 1719 llvm_unreachable("Invalid option in group!"); 1720 case OPT_ast_list: 1721 Opts.ProgramAction = frontend::ASTDeclList; break; 1722 case OPT_ast_dump_all_EQ: 1723 case OPT_ast_dump_EQ: { 1724 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1725 .CaseLower("default", ADOF_Default) 1726 .CaseLower("json", ADOF_JSON) 1727 .Default(std::numeric_limits<unsigned>::max()); 1728 1729 if (Val != std::numeric_limits<unsigned>::max()) 1730 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1731 else { 1732 Diags.Report(diag::err_drv_invalid_value) 1733 << A->getAsString(Args) << A->getValue(); 1734 Opts.ASTDumpFormat = ADOF_Default; 1735 } 1736 LLVM_FALLTHROUGH; 1737 } 1738 case OPT_ast_dump: 1739 case OPT_ast_dump_all: 1740 case OPT_ast_dump_lookups: 1741 Opts.ProgramAction = frontend::ASTDump; break; 1742 case OPT_ast_print: 1743 Opts.ProgramAction = frontend::ASTPrint; break; 1744 case OPT_ast_view: 1745 Opts.ProgramAction = frontend::ASTView; break; 1746 case OPT_compiler_options_dump: 1747 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1748 case OPT_dump_raw_tokens: 1749 Opts.ProgramAction = frontend::DumpRawTokens; break; 1750 case OPT_dump_tokens: 1751 Opts.ProgramAction = frontend::DumpTokens; break; 1752 case OPT_S: 1753 Opts.ProgramAction = frontend::EmitAssembly; break; 1754 case OPT_emit_llvm_bc: 1755 Opts.ProgramAction = frontend::EmitBC; break; 1756 case OPT_emit_html: 1757 Opts.ProgramAction = frontend::EmitHTML; break; 1758 case OPT_emit_llvm: 1759 Opts.ProgramAction = frontend::EmitLLVM; break; 1760 case OPT_emit_llvm_only: 1761 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1762 case OPT_emit_codegen_only: 1763 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1764 case OPT_emit_obj: 1765 Opts.ProgramAction = frontend::EmitObj; break; 1766 case OPT_fixit_EQ: 1767 Opts.FixItSuffix = A->getValue(); 1768 LLVM_FALLTHROUGH; 1769 case OPT_fixit: 1770 Opts.ProgramAction = frontend::FixIt; break; 1771 case OPT_emit_module: 1772 Opts.ProgramAction = frontend::GenerateModule; break; 1773 case OPT_emit_module_interface: 1774 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1775 case OPT_emit_header_module: 1776 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1777 case OPT_emit_pch: 1778 Opts.ProgramAction = frontend::GeneratePCH; break; 1779 case OPT_emit_interface_stubs: { 1780 StringRef ArgStr = 1781 Args.hasArg(OPT_interface_stub_version_EQ) 1782 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1783 : "experimental-ifs-v1"; 1784 if (ArgStr == "experimental-yaml-elf-v1" || 1785 ArgStr == "experimental-tapi-elf-v1") { 1786 std::string ErrorMessage = 1787 "Invalid interface stub format: " + ArgStr.str() + 1788 " is deprecated."; 1789 Diags.Report(diag::err_drv_invalid_value) 1790 << "Must specify a valid interface stub format type, ie: " 1791 "-interface-stub-version=experimental-ifs-v1" 1792 << ErrorMessage; 1793 } else if (ArgStr != "experimental-ifs-v1") { 1794 std::string ErrorMessage = 1795 "Invalid interface stub format: " + ArgStr.str() + "."; 1796 Diags.Report(diag::err_drv_invalid_value) 1797 << "Must specify a valid interface stub format type, ie: " 1798 "-interface-stub-version=experimental-ifs-v1" 1799 << ErrorMessage; 1800 } else { 1801 Opts.ProgramAction = frontend::GenerateInterfaceIfsExpV1; 1802 } 1803 break; 1804 } 1805 case OPT_init_only: 1806 Opts.ProgramAction = frontend::InitOnly; break; 1807 case OPT_fsyntax_only: 1808 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1809 case OPT_module_file_info: 1810 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1811 case OPT_verify_pch: 1812 Opts.ProgramAction = frontend::VerifyPCH; break; 1813 case OPT_print_preamble: 1814 Opts.ProgramAction = frontend::PrintPreamble; break; 1815 case OPT_E: 1816 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1817 case OPT_templight_dump: 1818 Opts.ProgramAction = frontend::TemplightDump; break; 1819 case OPT_rewrite_macros: 1820 Opts.ProgramAction = frontend::RewriteMacros; break; 1821 case OPT_rewrite_objc: 1822 Opts.ProgramAction = frontend::RewriteObjC; break; 1823 case OPT_rewrite_test: 1824 Opts.ProgramAction = frontend::RewriteTest; break; 1825 case OPT_analyze: 1826 Opts.ProgramAction = frontend::RunAnalysis; break; 1827 case OPT_migrate: 1828 Opts.ProgramAction = frontend::MigrateSource; break; 1829 case OPT_Eonly: 1830 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1831 case OPT_print_dependency_directives_minimized_source: 1832 Opts.ProgramAction = 1833 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1834 break; 1835 } 1836 } 1837 1838 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1839 Opts.Plugins.emplace_back(A->getValue(0)); 1840 Opts.ProgramAction = frontend::PluginAction; 1841 Opts.ActionName = A->getValue(); 1842 } 1843 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1844 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1845 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1846 1847 for (const std::string &Arg : 1848 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1849 std::string BlockName; 1850 unsigned MajorVersion; 1851 unsigned MinorVersion; 1852 bool Hashed; 1853 std::string UserInfo; 1854 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1855 MinorVersion, Hashed, UserInfo)) { 1856 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1857 1858 continue; 1859 } 1860 1861 // Add the testing module file extension. 1862 Opts.ModuleFileExtensions.push_back( 1863 std::make_shared<TestModuleFileExtension>( 1864 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1865 } 1866 1867 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1868 Opts.CodeCompletionAt = 1869 ParsedSourceLocation::FromString(A->getValue()); 1870 if (Opts.CodeCompletionAt.FileName.empty()) 1871 Diags.Report(diag::err_drv_invalid_value) 1872 << A->getAsString(Args) << A->getValue(); 1873 } 1874 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1875 1876 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1877 Opts.Plugins = Args.getAllArgValues(OPT_load); 1878 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1879 Opts.ShowHelp = Args.hasArg(OPT_help); 1880 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1881 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1882 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1883 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1884 Opts.TimeTraceGranularity = getLastArgIntValue( 1885 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1886 Opts.ShowVersion = Args.hasArg(OPT_version); 1887 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1888 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1889 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1890 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1891 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1892 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1893 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1894 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1895 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1896 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1897 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1898 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1899 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1900 // Only the -fmodule-file=<file> form. 1901 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1902 StringRef Val = A->getValue(); 1903 if (Val.find('=') == StringRef::npos) 1904 Opts.ModuleFiles.push_back(std::string(Val)); 1905 } 1906 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1907 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1908 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1909 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1910 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 1911 1912 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1913 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1914 << "-emit-module"; 1915 1916 Opts.CodeCompleteOpts.IncludeMacros 1917 = Args.hasArg(OPT_code_completion_macros); 1918 Opts.CodeCompleteOpts.IncludeCodePatterns 1919 = Args.hasArg(OPT_code_completion_patterns); 1920 Opts.CodeCompleteOpts.IncludeGlobals 1921 = !Args.hasArg(OPT_no_code_completion_globals); 1922 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1923 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1924 Opts.CodeCompleteOpts.IncludeBriefComments 1925 = Args.hasArg(OPT_code_completion_brief_comments); 1926 Opts.CodeCompleteOpts.IncludeFixIts 1927 = Args.hasArg(OPT_code_completion_with_fixits); 1928 1929 Opts.OverrideRecordLayoutsFile = 1930 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1931 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1932 if (Args.hasArg(OPT_aux_target_cpu)) 1933 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1934 if (Args.hasArg(OPT_aux_target_feature)) 1935 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1936 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1937 1938 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1939 OPT_arcmt_modify, 1940 OPT_arcmt_migrate)) { 1941 switch (A->getOption().getID()) { 1942 default: 1943 llvm_unreachable("missed a case"); 1944 case OPT_arcmt_check: 1945 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1946 break; 1947 case OPT_arcmt_modify: 1948 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1949 break; 1950 case OPT_arcmt_migrate: 1951 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1952 break; 1953 } 1954 } 1955 Opts.MTMigrateDir = 1956 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1957 Opts.ARCMTMigrateReportOut = 1958 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1959 Opts.ARCMTMigrateEmitARCErrors 1960 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1961 1962 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1963 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1964 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1965 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1966 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1967 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1968 if (Args.hasArg(OPT_objcmt_migrate_property)) 1969 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1970 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1971 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1972 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1973 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1974 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1975 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1976 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1977 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1978 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1979 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1980 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1981 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1982 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1983 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1984 if (Args.hasArg(OPT_objcmt_atomic_property)) 1985 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1986 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1987 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1988 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1989 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1990 if (Args.hasArg(OPT_objcmt_migrate_all)) 1991 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1992 1993 Opts.ObjCMTWhiteListPath = 1994 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 1995 1996 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1997 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1998 Diags.Report(diag::err_drv_argument_not_allowed_with) 1999 << "ARC migration" << "ObjC migration"; 2000 } 2001 2002 InputKind DashX(Language::Unknown); 2003 if (const Arg *A = Args.getLastArg(OPT_x)) { 2004 StringRef XValue = A->getValue(); 2005 2006 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2007 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2008 bool Preprocessed = XValue.consume_back("-cpp-output"); 2009 bool ModuleMap = XValue.consume_back("-module-map"); 2010 IsHeaderFile = 2011 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 2012 2013 // Principal languages. 2014 DashX = llvm::StringSwitch<InputKind>(XValue) 2015 .Case("c", Language::C) 2016 .Case("cl", Language::OpenCL) 2017 .Case("cuda", Language::CUDA) 2018 .Case("hip", Language::HIP) 2019 .Case("c++", Language::CXX) 2020 .Case("objective-c", Language::ObjC) 2021 .Case("objective-c++", Language::ObjCXX) 2022 .Case("renderscript", Language::RenderScript) 2023 .Default(Language::Unknown); 2024 2025 // "objc[++]-cpp-output" is an acceptable synonym for 2026 // "objective-c[++]-cpp-output". 2027 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2028 DashX = llvm::StringSwitch<InputKind>(XValue) 2029 .Case("objc", Language::ObjC) 2030 .Case("objc++", Language::ObjCXX) 2031 .Default(Language::Unknown); 2032 2033 // Some special cases cannot be combined with suffixes. 2034 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2035 DashX = llvm::StringSwitch<InputKind>(XValue) 2036 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2037 .Case("assembler-with-cpp", Language::Asm) 2038 .Cases("ast", "pcm", 2039 InputKind(Language::Unknown, InputKind::Precompiled)) 2040 .Case("ir", Language::LLVM_IR) 2041 .Default(Language::Unknown); 2042 2043 if (DashX.isUnknown()) 2044 Diags.Report(diag::err_drv_invalid_value) 2045 << A->getAsString(Args) << A->getValue(); 2046 2047 if (Preprocessed) 2048 DashX = DashX.getPreprocessed(); 2049 if (ModuleMap) 2050 DashX = DashX.withFormat(InputKind::ModuleMap); 2051 } 2052 2053 // '-' is the default input if none is given. 2054 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2055 Opts.Inputs.clear(); 2056 if (Inputs.empty()) 2057 Inputs.push_back("-"); 2058 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2059 InputKind IK = DashX; 2060 if (IK.isUnknown()) { 2061 IK = FrontendOptions::getInputKindForExtension( 2062 StringRef(Inputs[i]).rsplit('.').second); 2063 // FIXME: Warn on this? 2064 if (IK.isUnknown()) 2065 IK = Language::C; 2066 // FIXME: Remove this hack. 2067 if (i == 0) 2068 DashX = IK; 2069 } 2070 2071 bool IsSystem = false; 2072 2073 // The -emit-module action implicitly takes a module map. 2074 if (Opts.ProgramAction == frontend::GenerateModule && 2075 IK.getFormat() == InputKind::Source) { 2076 IK = IK.withFormat(InputKind::ModuleMap); 2077 IsSystem = Opts.IsSystemModule; 2078 } 2079 2080 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2081 } 2082 2083 return DashX; 2084 } 2085 2086 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2087 void *MainAddr) { 2088 std::string ClangExecutable = 2089 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2090 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2091 } 2092 2093 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2094 const std::string &WorkingDir) { 2095 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2096 Opts.Verbose = Args.hasArg(OPT_v); 2097 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2098 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2099 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2100 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2101 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2102 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2103 2104 // Canonicalize -fmodules-cache-path before storing it. 2105 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2106 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2107 if (WorkingDir.empty()) 2108 llvm::sys::fs::make_absolute(P); 2109 else 2110 llvm::sys::fs::make_absolute(WorkingDir, P); 2111 } 2112 llvm::sys::path::remove_dots(P); 2113 Opts.ModuleCachePath = std::string(P.str()); 2114 2115 Opts.ModuleUserBuildPath = 2116 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2117 // Only the -fmodule-file=<name>=<file> form. 2118 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2119 StringRef Val = A->getValue(); 2120 if (Val.find('=') != StringRef::npos){ 2121 auto Split = Val.split('='); 2122 Opts.PrebuiltModuleFiles.insert( 2123 {std::string(Split.first), std::string(Split.second)}); 2124 } 2125 } 2126 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2127 Opts.AddPrebuiltModulePath(A->getValue()); 2128 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2129 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2130 Opts.ModulesStrictContextHash = Args.hasArg(OPT_fmodules_strict_context_hash); 2131 Opts.ModulesValidateDiagnosticOptions = 2132 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2133 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2134 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2135 Opts.ModuleCachePruneInterval = 2136 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2137 Opts.ModuleCachePruneAfter = 2138 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2139 Opts.ModulesValidateOncePerBuildSession = 2140 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2141 Opts.BuildSessionTimestamp = 2142 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2143 Opts.ModulesValidateSystemHeaders = 2144 Args.hasArg(OPT_fmodules_validate_system_headers); 2145 Opts.ValidateASTInputFilesContent = 2146 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2147 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2148 Opts.ModuleFormat = A->getValue(); 2149 2150 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2151 StringRef MacroDef = A->getValue(); 2152 Opts.ModulesIgnoreMacros.insert( 2153 llvm::CachedHashString(MacroDef.split('=').first)); 2154 } 2155 2156 // Add -I..., -F..., and -index-header-map options in order. 2157 bool IsIndexHeaderMap = false; 2158 bool IsSysrootSpecified = 2159 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2160 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2161 if (A->getOption().matches(OPT_index_header_map)) { 2162 // -index-header-map applies to the next -I or -F. 2163 IsIndexHeaderMap = true; 2164 continue; 2165 } 2166 2167 frontend::IncludeDirGroup Group = 2168 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2169 2170 bool IsFramework = A->getOption().matches(OPT_F); 2171 std::string Path = A->getValue(); 2172 2173 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2174 SmallString<32> Buffer; 2175 llvm::sys::path::append(Buffer, Opts.Sysroot, 2176 llvm::StringRef(A->getValue()).substr(1)); 2177 Path = std::string(Buffer.str()); 2178 } 2179 2180 Opts.AddPath(Path, Group, IsFramework, 2181 /*IgnoreSysroot*/ true); 2182 IsIndexHeaderMap = false; 2183 } 2184 2185 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2186 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2187 for (const auto *A : 2188 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2189 if (A->getOption().matches(OPT_iprefix)) 2190 Prefix = A->getValue(); 2191 else if (A->getOption().matches(OPT_iwithprefix)) 2192 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2193 else 2194 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2195 } 2196 2197 for (const auto *A : Args.filtered(OPT_idirafter)) 2198 Opts.AddPath(A->getValue(), frontend::After, false, true); 2199 for (const auto *A : Args.filtered(OPT_iquote)) 2200 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2201 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2202 Opts.AddPath(A->getValue(), frontend::System, false, 2203 !A->getOption().matches(OPT_iwithsysroot)); 2204 for (const auto *A : Args.filtered(OPT_iframework)) 2205 Opts.AddPath(A->getValue(), frontend::System, true, true); 2206 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2207 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2208 /*IgnoreSysRoot=*/false); 2209 2210 // Add the paths for the various language specific isystem flags. 2211 for (const auto *A : Args.filtered(OPT_c_isystem)) 2212 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2213 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2214 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2215 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2216 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2217 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2218 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2219 2220 // Add the internal paths from a driver that detects standard include paths. 2221 for (const auto *A : 2222 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2223 frontend::IncludeDirGroup Group = frontend::System; 2224 if (A->getOption().matches(OPT_internal_externc_isystem)) 2225 Group = frontend::ExternCSystem; 2226 Opts.AddPath(A->getValue(), Group, false, true); 2227 } 2228 2229 // Add the path prefixes which are implicitly treated as being system headers. 2230 for (const auto *A : 2231 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2232 Opts.AddSystemHeaderPrefix( 2233 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2234 2235 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2236 Opts.AddVFSOverlayFile(A->getValue()); 2237 } 2238 2239 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2240 const llvm::Triple &T, 2241 PreprocessorOptions &PPOpts, 2242 LangStandard::Kind LangStd) { 2243 // Set some properties which depend solely on the input kind; it would be nice 2244 // to move these to the language standard, and have the driver resolve the 2245 // input kind + language standard. 2246 // 2247 // FIXME: Perhaps a better model would be for a single source file to have 2248 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2249 // simultaneously active? 2250 if (IK.getLanguage() == Language::Asm) { 2251 Opts.AsmPreprocessor = 1; 2252 } else if (IK.isObjectiveC()) { 2253 Opts.ObjC = 1; 2254 } 2255 2256 if (LangStd == LangStandard::lang_unspecified) { 2257 // Based on the base language, pick one. 2258 switch (IK.getLanguage()) { 2259 case Language::Unknown: 2260 case Language::LLVM_IR: 2261 llvm_unreachable("Invalid input kind!"); 2262 case Language::OpenCL: 2263 LangStd = LangStandard::lang_opencl10; 2264 break; 2265 case Language::CUDA: 2266 LangStd = LangStandard::lang_cuda; 2267 break; 2268 case Language::Asm: 2269 case Language::C: 2270 #if defined(CLANG_DEFAULT_STD_C) 2271 LangStd = CLANG_DEFAULT_STD_C; 2272 #else 2273 // The PS4 uses C99 as the default C standard. 2274 if (T.isPS4()) 2275 LangStd = LangStandard::lang_gnu99; 2276 else 2277 LangStd = LangStandard::lang_gnu17; 2278 #endif 2279 break; 2280 case Language::ObjC: 2281 #if defined(CLANG_DEFAULT_STD_C) 2282 LangStd = CLANG_DEFAULT_STD_C; 2283 #else 2284 LangStd = LangStandard::lang_gnu11; 2285 #endif 2286 break; 2287 case Language::CXX: 2288 case Language::ObjCXX: 2289 #if defined(CLANG_DEFAULT_STD_CXX) 2290 LangStd = CLANG_DEFAULT_STD_CXX; 2291 #else 2292 LangStd = LangStandard::lang_gnucxx14; 2293 #endif 2294 break; 2295 case Language::RenderScript: 2296 LangStd = LangStandard::lang_c99; 2297 break; 2298 case Language::HIP: 2299 LangStd = LangStandard::lang_hip; 2300 break; 2301 } 2302 } 2303 2304 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2305 Opts.LineComment = Std.hasLineComments(); 2306 Opts.C99 = Std.isC99(); 2307 Opts.C11 = Std.isC11(); 2308 Opts.C17 = Std.isC17(); 2309 Opts.C2x = Std.isC2x(); 2310 Opts.CPlusPlus = Std.isCPlusPlus(); 2311 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2312 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2313 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2314 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2315 Opts.Digraphs = Std.hasDigraphs(); 2316 Opts.GNUMode = Std.isGNUMode(); 2317 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2318 Opts.GNUCVersion = 0; 2319 Opts.HexFloats = Std.hasHexFloats(); 2320 Opts.ImplicitInt = Std.hasImplicitInt(); 2321 2322 // Set OpenCL Version. 2323 Opts.OpenCL = Std.isOpenCL(); 2324 if (LangStd == LangStandard::lang_opencl10) 2325 Opts.OpenCLVersion = 100; 2326 else if (LangStd == LangStandard::lang_opencl11) 2327 Opts.OpenCLVersion = 110; 2328 else if (LangStd == LangStandard::lang_opencl12) 2329 Opts.OpenCLVersion = 120; 2330 else if (LangStd == LangStandard::lang_opencl20) 2331 Opts.OpenCLVersion = 200; 2332 else if (LangStd == LangStandard::lang_openclcpp) 2333 Opts.OpenCLCPlusPlusVersion = 100; 2334 2335 // OpenCL has some additional defaults. 2336 if (Opts.OpenCL) { 2337 Opts.AltiVec = 0; 2338 Opts.ZVector = 0; 2339 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2340 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2341 Opts.NativeHalfType = 1; 2342 Opts.NativeHalfArgsAndReturns = 1; 2343 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2344 2345 // Include default header file for OpenCL. 2346 if (Opts.IncludeDefaultHeader) { 2347 if (Opts.DeclareOpenCLBuiltins) { 2348 // Only include base header file for builtin types and constants. 2349 PPOpts.Includes.push_back("opencl-c-base.h"); 2350 } else { 2351 PPOpts.Includes.push_back("opencl-c.h"); 2352 } 2353 } 2354 } 2355 2356 Opts.HIP = IK.getLanguage() == Language::HIP; 2357 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2358 if (Opts.CUDA) 2359 // Set default FP_CONTRACT to FAST. 2360 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2361 2362 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2363 if (Opts.RenderScript) { 2364 Opts.NativeHalfType = 1; 2365 Opts.NativeHalfArgsAndReturns = 1; 2366 } 2367 2368 // OpenCL and C++ both have bool, true, false keywords. 2369 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2370 2371 // OpenCL has half keyword 2372 Opts.Half = Opts.OpenCL; 2373 2374 // C++ has wchar_t keyword. 2375 Opts.WChar = Opts.CPlusPlus; 2376 2377 Opts.GNUKeywords = Opts.GNUMode; 2378 Opts.CXXOperatorNames = Opts.CPlusPlus; 2379 2380 Opts.AlignedAllocation = Opts.CPlusPlus17; 2381 2382 Opts.DollarIdents = !Opts.AsmPreprocessor; 2383 2384 // Enable [[]] attributes in C++11 and C2x by default. 2385 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2386 } 2387 2388 /// Attempt to parse a visibility value out of the given argument. 2389 static Visibility parseVisibility(Arg *arg, ArgList &args, 2390 DiagnosticsEngine &diags) { 2391 StringRef value = arg->getValue(); 2392 if (value == "default") { 2393 return DefaultVisibility; 2394 } else if (value == "hidden" || value == "internal") { 2395 return HiddenVisibility; 2396 } else if (value == "protected") { 2397 // FIXME: diagnose if target does not support protected visibility 2398 return ProtectedVisibility; 2399 } 2400 2401 diags.Report(diag::err_drv_invalid_value) 2402 << arg->getAsString(args) << value; 2403 return DefaultVisibility; 2404 } 2405 2406 /// Check if input file kind and language standard are compatible. 2407 static bool IsInputCompatibleWithStandard(InputKind IK, 2408 const LangStandard &S) { 2409 switch (IK.getLanguage()) { 2410 case Language::Unknown: 2411 case Language::LLVM_IR: 2412 llvm_unreachable("should not parse language flags for this input"); 2413 2414 case Language::C: 2415 case Language::ObjC: 2416 case Language::RenderScript: 2417 return S.getLanguage() == Language::C; 2418 2419 case Language::OpenCL: 2420 return S.getLanguage() == Language::OpenCL; 2421 2422 case Language::CXX: 2423 case Language::ObjCXX: 2424 return S.getLanguage() == Language::CXX; 2425 2426 case Language::CUDA: 2427 // FIXME: What -std= values should be permitted for CUDA compilations? 2428 return S.getLanguage() == Language::CUDA || 2429 S.getLanguage() == Language::CXX; 2430 2431 case Language::HIP: 2432 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2433 2434 case Language::Asm: 2435 // Accept (and ignore) all -std= values. 2436 // FIXME: The -std= value is not ignored; it affects the tokenization 2437 // and preprocessing rules if we're preprocessing this asm input. 2438 return true; 2439 } 2440 2441 llvm_unreachable("unexpected input language"); 2442 } 2443 2444 /// Get language name for given input kind. 2445 static const StringRef GetInputKindName(InputKind IK) { 2446 switch (IK.getLanguage()) { 2447 case Language::C: 2448 return "C"; 2449 case Language::ObjC: 2450 return "Objective-C"; 2451 case Language::CXX: 2452 return "C++"; 2453 case Language::ObjCXX: 2454 return "Objective-C++"; 2455 case Language::OpenCL: 2456 return "OpenCL"; 2457 case Language::CUDA: 2458 return "CUDA"; 2459 case Language::RenderScript: 2460 return "RenderScript"; 2461 case Language::HIP: 2462 return "HIP"; 2463 2464 case Language::Asm: 2465 return "Asm"; 2466 case Language::LLVM_IR: 2467 return "LLVM IR"; 2468 2469 case Language::Unknown: 2470 break; 2471 } 2472 llvm_unreachable("unknown input language"); 2473 } 2474 2475 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2476 const TargetOptions &TargetOpts, 2477 PreprocessorOptions &PPOpts, 2478 DiagnosticsEngine &Diags) { 2479 // FIXME: Cleanup per-file based stuff. 2480 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2481 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2482 LangStd = LangStandard::getLangKind(A->getValue()); 2483 if (LangStd == LangStandard::lang_unspecified) { 2484 Diags.Report(diag::err_drv_invalid_value) 2485 << A->getAsString(Args) << A->getValue(); 2486 // Report supported standards with short description. 2487 for (unsigned KindValue = 0; 2488 KindValue != LangStandard::lang_unspecified; 2489 ++KindValue) { 2490 const LangStandard &Std = LangStandard::getLangStandardForKind( 2491 static_cast<LangStandard::Kind>(KindValue)); 2492 if (IsInputCompatibleWithStandard(IK, Std)) { 2493 auto Diag = Diags.Report(diag::note_drv_use_standard); 2494 Diag << Std.getName() << Std.getDescription(); 2495 unsigned NumAliases = 0; 2496 #define LANGSTANDARD(id, name, lang, desc, features) 2497 #define LANGSTANDARD_ALIAS(id, alias) \ 2498 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2499 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2500 #include "clang/Basic/LangStandards.def" 2501 Diag << NumAliases; 2502 #define LANGSTANDARD(id, name, lang, desc, features) 2503 #define LANGSTANDARD_ALIAS(id, alias) \ 2504 if (KindValue == LangStandard::lang_##id) Diag << alias; 2505 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2506 #include "clang/Basic/LangStandards.def" 2507 } 2508 } 2509 } else { 2510 // Valid standard, check to make sure language and standard are 2511 // compatible. 2512 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2513 if (!IsInputCompatibleWithStandard(IK, Std)) { 2514 Diags.Report(diag::err_drv_argument_not_allowed_with) 2515 << A->getAsString(Args) << GetInputKindName(IK); 2516 } 2517 } 2518 } 2519 2520 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2521 Opts.DllExportInlines = false; 2522 2523 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2524 StringRef Name = A->getValue(); 2525 if (Name == "full" || Name == "branch") { 2526 Opts.CFProtectionBranch = 1; 2527 } 2528 } 2529 // -cl-std only applies for OpenCL language standards. 2530 // Override the -std option in this case. 2531 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2532 LangStandard::Kind OpenCLLangStd 2533 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2534 .Cases("cl", "CL", LangStandard::lang_opencl10) 2535 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2536 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2537 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2538 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2539 .Default(LangStandard::lang_unspecified); 2540 2541 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2542 Diags.Report(diag::err_drv_invalid_value) 2543 << A->getAsString(Args) << A->getValue(); 2544 } 2545 else 2546 LangStd = OpenCLLangStd; 2547 } 2548 2549 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2550 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2551 if (Opts.SYCL) { 2552 // -sycl-std applies to any SYCL source, not only those containing kernels, 2553 // but also those using the SYCL API 2554 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2555 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2556 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2557 .Default(0U); 2558 2559 if (Opts.SYCLVersion == 0U) { 2560 // User has passed an invalid value to the flag, this is an error 2561 Diags.Report(diag::err_drv_invalid_value) 2562 << A->getAsString(Args) << A->getValue(); 2563 } 2564 } 2565 } 2566 2567 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2568 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2569 2570 llvm::Triple T(TargetOpts.Triple); 2571 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2572 2573 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2574 // This option should be deprecated for CL > 1.0 because 2575 // this option was added for compatibility with OpenCL 1.0. 2576 if (Args.getLastArg(OPT_cl_strict_aliasing) 2577 && Opts.OpenCLVersion > 100) { 2578 Diags.Report(diag::warn_option_invalid_ocl_version) 2579 << Opts.getOpenCLVersionTuple().getAsString() 2580 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2581 } 2582 2583 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2584 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2585 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2586 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2587 // name, as it doesn't seem a useful distinction. 2588 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2589 Opts.GNUKeywords); 2590 2591 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2592 2593 if (Args.hasArg(OPT_fno_operator_names)) 2594 Opts.CXXOperatorNames = 0; 2595 2596 if (Args.hasArg(OPT_fcuda_is_device)) 2597 Opts.CUDAIsDevice = 1; 2598 2599 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2600 Opts.CUDAAllowVariadicFunctions = 1; 2601 2602 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2603 Opts.CUDAHostDeviceConstexpr = 0; 2604 2605 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2606 Opts.CUDADeviceApproxTranscendentals = 1; 2607 2608 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2609 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2610 if (Opts.HIP) 2611 Opts.GPUAllowDeviceInit = 1; 2612 else 2613 Diags.Report(diag::warn_ignored_hip_only_option) 2614 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2615 } 2616 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2617 if (Opts.HIP) 2618 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2619 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2620 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2621 Diags.Report(diag::warn_ignored_hip_only_option) 2622 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2623 2624 if (Opts.ObjC) { 2625 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2626 StringRef value = arg->getValue(); 2627 if (Opts.ObjCRuntime.tryParse(value)) 2628 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2629 } 2630 2631 if (Args.hasArg(OPT_fobjc_gc_only)) 2632 Opts.setGC(LangOptions::GCOnly); 2633 else if (Args.hasArg(OPT_fobjc_gc)) 2634 Opts.setGC(LangOptions::HybridGC); 2635 else if (Args.hasArg(OPT_fobjc_arc)) { 2636 Opts.ObjCAutoRefCount = 1; 2637 if (!Opts.ObjCRuntime.allowsARC()) 2638 Diags.Report(diag::err_arc_unsupported_on_runtime); 2639 } 2640 2641 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2642 // whether the feature is actually enabled. This is predominantly 2643 // determined by -fobjc-runtime, but we allow it to be overridden 2644 // from the command line for testing purposes. 2645 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2646 Opts.ObjCWeakRuntime = 1; 2647 else 2648 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2649 2650 // ObjCWeak determines whether __weak is actually enabled. 2651 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2652 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2653 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2654 assert(!Opts.ObjCWeak); 2655 } else if (Opts.getGC() != LangOptions::NonGC) { 2656 Diags.Report(diag::err_objc_weak_with_gc); 2657 } else if (!Opts.ObjCWeakRuntime) { 2658 Diags.Report(diag::err_objc_weak_unsupported); 2659 } else { 2660 Opts.ObjCWeak = 1; 2661 } 2662 } else if (Opts.ObjCAutoRefCount) { 2663 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2664 } 2665 2666 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2667 Opts.ObjCInferRelatedResultType = 0; 2668 2669 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2670 Opts.ObjCSubscriptingLegacyRuntime = 2671 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2672 } 2673 2674 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2675 // Check that the version has 1 to 3 components and the minor and patch 2676 // versions fit in two decimal digits. 2677 VersionTuple GNUCVer; 2678 bool Invalid = GNUCVer.tryParse(A->getValue()); 2679 unsigned Major = GNUCVer.getMajor(); 2680 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2681 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2682 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2683 Diags.Report(diag::err_drv_invalid_value) 2684 << A->getAsString(Args) << A->getValue(); 2685 } 2686 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2687 } 2688 2689 if (Args.hasArg(OPT_fgnu89_inline)) { 2690 if (Opts.CPlusPlus) 2691 Diags.Report(diag::err_drv_argument_not_allowed_with) 2692 << "-fgnu89-inline" << GetInputKindName(IK); 2693 else 2694 Opts.GNUInline = 1; 2695 } 2696 2697 if (Args.hasArg(OPT_fapple_kext)) { 2698 if (!Opts.CPlusPlus) 2699 Diags.Report(diag::warn_c_kext); 2700 else 2701 Opts.AppleKext = 1; 2702 } 2703 2704 if (Args.hasArg(OPT_print_ivar_layout)) 2705 Opts.ObjCGCBitmapPrint = 1; 2706 2707 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2708 Opts.NoConstantCFStrings = 1; 2709 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2710 Opts.CFRuntime = 2711 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2712 .Cases("unspecified", "standalone", "objc", 2713 LangOptions::CoreFoundationABI::ObjectiveC) 2714 .Cases("swift", "swift-5.0", 2715 LangOptions::CoreFoundationABI::Swift5_0) 2716 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2717 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2718 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2719 2720 if (Args.hasArg(OPT_fzvector)) 2721 Opts.ZVector = 1; 2722 2723 if (Args.hasArg(OPT_pthread)) 2724 Opts.POSIXThreads = 1; 2725 2726 // The value-visibility mode defaults to "default". 2727 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2728 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2729 } else { 2730 Opts.setValueVisibilityMode(DefaultVisibility); 2731 } 2732 2733 // The type-visibility mode defaults to the value-visibility mode. 2734 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2735 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2736 } else { 2737 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2738 } 2739 2740 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2741 Opts.InlineVisibilityHidden = 1; 2742 2743 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2744 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2745 2746 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2747 Opts.SetVisibilityForExternDecls = 1; 2748 2749 if (Args.hasArg(OPT_ftrapv)) { 2750 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2751 // Set the handler, if one is specified. 2752 Opts.OverflowHandler = 2753 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2754 } 2755 else if (Args.hasArg(OPT_fwrapv)) 2756 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2757 2758 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2759 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2760 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2761 Opts.MSCompatibilityVersion = 0; 2762 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2763 VersionTuple VT; 2764 if (VT.tryParse(A->getValue())) 2765 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2766 << A->getValue(); 2767 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2768 VT.getMinor().getValueOr(0) * 100000 + 2769 VT.getSubminor().getValueOr(0); 2770 } 2771 2772 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2773 // is specified, or -std is set to a conforming mode. 2774 // Trigraphs are disabled by default in c++1z onwards. 2775 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2776 Opts.Trigraphs = 2777 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2778 2779 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2780 OPT_fno_dollars_in_identifiers, 2781 Opts.DollarIdents); 2782 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2783 Opts.setVtorDispMode( 2784 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2785 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2786 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2787 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2788 Opts.ConstStrings); 2789 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2790 using LaxKind = LangOptions::LaxVectorConversionKind; 2791 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2792 .Case("none", LaxKind::None) 2793 .Case("integer", LaxKind::Integer) 2794 .Case("all", LaxKind::All) 2795 .Default(llvm::None)) 2796 Opts.setLaxVectorConversions(*Kind); 2797 else 2798 Diags.Report(diag::err_drv_invalid_value) 2799 << A->getAsString(Args) << A->getValue(); 2800 } 2801 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2802 Opts.ThreadsafeStatics = 0; 2803 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2804 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2805 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2806 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2807 2808 // -ffixed-point 2809 Opts.FixedPoint = 2810 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2811 !Opts.CPlusPlus; 2812 Opts.PaddingOnUnsignedFixedPoint = 2813 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2814 OPT_fno_padding_on_unsigned_fixed_point, 2815 /*Default=*/false) && 2816 Opts.FixedPoint; 2817 2818 // Handle exception personalities 2819 Arg *A = Args.getLastArg( 2820 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2821 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2822 if (A) { 2823 const Option &Opt = A->getOption(); 2824 llvm::Triple T(TargetOpts.Triple); 2825 if (T.isWindowsMSVCEnvironment()) 2826 Diags.Report(diag::err_fe_invalid_exception_model) 2827 << Opt.getName() << T.str(); 2828 2829 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2830 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2831 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2832 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2833 } 2834 2835 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2836 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2837 2838 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2839 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2840 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2841 && Opts.OpenCLVersion == 200); 2842 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2843 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2844 2845 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2846 Args.hasArg(OPT_fconvergent_functions); 2847 2848 Opts.DoubleSquareBracketAttributes = 2849 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2850 OPT_fno_double_square_bracket_attributes, 2851 Opts.DoubleSquareBracketAttributes); 2852 2853 Opts.CPlusPlusModules = Opts.CPlusPlus2a; 2854 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2855 Opts.Modules = 2856 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2857 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2858 Opts.ModulesDeclUse = 2859 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2860 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2861 // enter a different module (eg, when building a header unit). 2862 Opts.ModulesLocalVisibility = 2863 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2864 Opts.CPlusPlusModules; 2865 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2866 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2867 Opts.ModulesSearchAll = Opts.Modules && 2868 !Args.hasArg(OPT_fno_modules_search_all) && 2869 Args.hasArg(OPT_fmodules_search_all); 2870 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2871 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2872 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2873 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2874 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2875 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2876 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2877 .Case("char", 1) 2878 .Case("short", 2) 2879 .Case("int", 4) 2880 .Default(0); 2881 if (Opts.WCharSize == 0) 2882 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2883 } 2884 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2885 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2886 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2887 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2888 if (!Opts.NoBuiltin) 2889 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2890 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2891 Opts.RelaxedTemplateTemplateArgs = 2892 Args.hasArg(OPT_frelaxed_template_template_args); 2893 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2894 Opts.AlignedAllocation = 2895 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2896 Opts.AlignedAllocation); 2897 Opts.AlignedAllocationUnavailable = 2898 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2899 Opts.NewAlignOverride = 2900 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2901 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2902 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2903 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2904 << A->getValue(); 2905 Opts.NewAlignOverride = 0; 2906 } 2907 Opts.ConceptSatisfactionCaching = 2908 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2909 if (Args.hasArg(OPT_fconcepts_ts)) 2910 Diags.Report(diag::warn_fe_concepts_ts_flag); 2911 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2912 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2913 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2914 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2915 Opts.InstantiationDepth = 2916 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2917 Opts.ArrowDepth = 2918 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2919 Opts.ConstexprCallDepth = 2920 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2921 Opts.ConstexprStepLimit = 2922 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2923 Opts.EnableNewConstInterp = 2924 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2925 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2926 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2927 Opts.NumLargeByValueCopy = 2928 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2929 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2930 Opts.ObjCConstantStringClass = 2931 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2932 Opts.ObjCDefaultSynthProperties = 2933 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2934 Opts.EncodeExtendedBlockSig = 2935 Args.hasArg(OPT_fencode_extended_block_signature); 2936 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2937 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2938 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2939 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2940 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2941 ? 128 2942 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2943 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2944 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2945 Opts.ROPI = Args.hasArg(OPT_fropi); 2946 Opts.RWPI = Args.hasArg(OPT_frwpi); 2947 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2948 Opts.Static = Args.hasArg(OPT_static_define); 2949 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2950 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2951 || Args.hasArg(OPT_fdump_record_layouts); 2952 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2953 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2954 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2955 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2956 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2957 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2958 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2959 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2960 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2961 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2962 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2963 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2964 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 2965 Opts.CurrentModule = Opts.ModuleName; 2966 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2967 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2968 llvm::sort(Opts.ModuleFeatures); 2969 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2970 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2971 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2972 // is enabled. 2973 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2974 | Opts.NativeHalfArgsAndReturns; 2975 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2976 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2977 2978 // __declspec is enabled by default for the PS4 by the driver, and also 2979 // enabled for Microsoft Extensions or Borland Extensions, here. 2980 // 2981 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2982 // CUDA extension. However, it is required for supporting 2983 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2984 // been rewritten in terms of something more generic, remove the Opts.CUDA 2985 // term here. 2986 Opts.DeclSpecKeyword = 2987 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2988 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2989 2990 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2991 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2992 .Case("target", LangOptions::ASMM_Target) 2993 .Case("no", LangOptions::ASMM_Off) 2994 .Case("yes", LangOptions::ASMM_On) 2995 .Default(255)) { 2996 default: 2997 Diags.Report(diag::err_drv_invalid_value) 2998 << "-faddress-space-map-mangling=" << A->getValue(); 2999 break; 3000 case LangOptions::ASMM_Target: 3001 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 3002 break; 3003 case LangOptions::ASMM_On: 3004 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 3005 break; 3006 case LangOptions::ASMM_Off: 3007 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 3008 break; 3009 } 3010 } 3011 3012 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 3013 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 3014 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 3015 A->getValue()) 3016 .Case("single", 3017 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3018 .Case("multiple", 3019 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3020 .Case("virtual", 3021 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3022 .Default(LangOptions::PPTMK_BestCase); 3023 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3024 Diags.Report(diag::err_drv_invalid_value) 3025 << "-fms-memptr-rep=" << A->getValue(); 3026 3027 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3028 } 3029 3030 // Check for MS default calling conventions being specified. 3031 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3032 LangOptions::DefaultCallingConvention DefaultCC = 3033 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3034 .Case("cdecl", LangOptions::DCC_CDecl) 3035 .Case("fastcall", LangOptions::DCC_FastCall) 3036 .Case("stdcall", LangOptions::DCC_StdCall) 3037 .Case("vectorcall", LangOptions::DCC_VectorCall) 3038 .Case("regcall", LangOptions::DCC_RegCall) 3039 .Default(LangOptions::DCC_None); 3040 if (DefaultCC == LangOptions::DCC_None) 3041 Diags.Report(diag::err_drv_invalid_value) 3042 << "-fdefault-calling-conv=" << A->getValue(); 3043 3044 llvm::Triple T(TargetOpts.Triple); 3045 llvm::Triple::ArchType Arch = T.getArch(); 3046 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3047 DefaultCC == LangOptions::DCC_StdCall) && 3048 Arch != llvm::Triple::x86; 3049 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3050 DefaultCC == LangOptions::DCC_RegCall) && 3051 !T.isX86(); 3052 if (emitError) 3053 Diags.Report(diag::err_drv_argument_not_allowed_with) 3054 << A->getSpelling() << T.getTriple(); 3055 else 3056 Opts.setDefaultCallingConv(DefaultCC); 3057 } 3058 3059 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3060 3061 // -mrtd option 3062 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3063 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3064 Diags.Report(diag::err_drv_argument_not_allowed_with) 3065 << A->getSpelling() << "-fdefault-calling-conv"; 3066 else { 3067 llvm::Triple T(TargetOpts.Triple); 3068 if (T.getArch() != llvm::Triple::x86) 3069 Diags.Report(diag::err_drv_argument_not_allowed_with) 3070 << A->getSpelling() << T.getTriple(); 3071 else 3072 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3073 } 3074 } 3075 3076 // Check if -fopenmp is specified and set default version to 4.5. 3077 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 45 : 0; 3078 // Check if -fopenmp-simd is specified. 3079 bool IsSimdSpecified = 3080 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3081 /*Default=*/false); 3082 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3083 Opts.OpenMPUseTLS = 3084 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3085 Opts.OpenMPIsDevice = 3086 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3087 Opts.OpenMPIRBuilder = 3088 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3089 bool IsTargetSpecified = 3090 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3091 3092 if (Opts.OpenMP || Opts.OpenMPSimd) { 3093 if (int Version = getLastArgIntValue( 3094 Args, OPT_fopenmp_version_EQ, 3095 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 3096 Opts.OpenMP = Version; 3097 else if (IsSimdSpecified || IsTargetSpecified) 3098 Opts.OpenMP = 45; 3099 // Provide diagnostic when a given target is not expected to be an OpenMP 3100 // device or host. 3101 if (!Opts.OpenMPIsDevice) { 3102 switch (T.getArch()) { 3103 default: 3104 break; 3105 // Add unsupported host targets here: 3106 case llvm::Triple::nvptx: 3107 case llvm::Triple::nvptx64: 3108 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3109 << TargetOpts.Triple; 3110 break; 3111 } 3112 } 3113 } 3114 3115 // Set the flag to prevent the implementation from emitting device exception 3116 // handling code for those requiring so. 3117 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 3118 Opts.Exceptions = 0; 3119 Opts.CXXExceptions = 0; 3120 } 3121 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3122 Opts.OpenMPCUDANumSMs = 3123 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3124 Opts.OpenMPCUDANumSMs, Diags); 3125 Opts.OpenMPCUDABlocksPerSM = 3126 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3127 Opts.OpenMPCUDABlocksPerSM, Diags); 3128 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3129 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3130 Opts.OpenMPCUDAReductionBufNum, Diags); 3131 } 3132 3133 // Prevent auto-widening the representation of loop counters during an 3134 // OpenMP collapse clause. 3135 Opts.OpenMPOptimisticCollapse = 3136 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3137 3138 // Get the OpenMP target triples if any. 3139 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3140 3141 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3142 llvm::Triple TT(A->getValue(i)); 3143 3144 if (TT.getArch() == llvm::Triple::UnknownArch || 3145 !(TT.getArch() == llvm::Triple::aarch64 || 3146 TT.getArch() == llvm::Triple::ppc || 3147 TT.getArch() == llvm::Triple::ppc64 || 3148 TT.getArch() == llvm::Triple::ppc64le || 3149 TT.getArch() == llvm::Triple::nvptx || 3150 TT.getArch() == llvm::Triple::nvptx64 || 3151 TT.getArch() == llvm::Triple::x86 || 3152 TT.getArch() == llvm::Triple::x86_64)) 3153 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3154 else 3155 Opts.OMPTargetTriples.push_back(TT); 3156 } 3157 } 3158 3159 // Get OpenMP host file path if any and report if a non existent file is 3160 // found 3161 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3162 Opts.OMPHostIRFile = A->getValue(); 3163 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3164 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3165 << Opts.OMPHostIRFile; 3166 } 3167 3168 // Set CUDA mode for OpenMP target NVPTX if specified in options 3169 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 3170 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3171 3172 // Set CUDA mode for OpenMP target NVPTX if specified in options 3173 Opts.OpenMPCUDAForceFullRuntime = 3174 Opts.OpenMPIsDevice && T.isNVPTX() && 3175 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3176 3177 // Record whether the __DEPRECATED define was requested. 3178 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3179 OPT_fno_deprecated_macro, 3180 Opts.Deprecated); 3181 3182 // FIXME: Eliminate this dependency. 3183 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3184 OptSize = getOptimizationLevelSize(Args); 3185 Opts.Optimize = Opt != 0; 3186 Opts.OptimizeSize = OptSize != 0; 3187 3188 // This is the __NO_INLINE__ define, which just depends on things like the 3189 // optimization level and -fno-inline, not actually whether the backend has 3190 // inlining enabled. 3191 Opts.NoInlineDefine = !Opts.Optimize; 3192 if (Arg *InlineArg = Args.getLastArg( 3193 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3194 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3195 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3196 Opts.NoInlineDefine = true; 3197 3198 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 3199 Args.hasArg(OPT_cl_fast_relaxed_math); 3200 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3201 Args.hasArg(OPT_cl_finite_math_only) || 3202 Args.hasArg(OPT_cl_fast_relaxed_math); 3203 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3204 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3205 Args.hasArg(OPT_cl_fast_relaxed_math); 3206 3207 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3208 StringRef Val = A->getValue(); 3209 if (Val == "fast") 3210 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 3211 else if (Val == "on") 3212 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 3213 else if (Val == "off") 3214 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 3215 else 3216 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3217 } 3218 3219 LangOptions::FPRoundingModeKind FPRM = LangOptions::FPR_ToNearest; 3220 if (Args.hasArg(OPT_frounding_math)) { 3221 FPRM = LangOptions::FPR_Dynamic; 3222 } 3223 Opts.setFPRoundingMode(FPRM); 3224 3225 if (Args.hasArg(OPT_ftrapping_math)) { 3226 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3227 } 3228 3229 if (Args.hasArg(OPT_fno_trapping_math)) { 3230 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3231 } 3232 3233 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3234 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3235 StringRef Val = A->getValue(); 3236 if (Val.equals("ignore")) 3237 FPEB = LangOptions::FPE_Ignore; 3238 else if (Val.equals("maytrap")) 3239 FPEB = LangOptions::FPE_MayTrap; 3240 else if (Val.equals("strict")) 3241 FPEB = LangOptions::FPE_Strict; 3242 else 3243 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3244 } 3245 Opts.setFPExceptionMode(FPEB); 3246 3247 Opts.RetainCommentsFromSystemHeaders = 3248 Args.hasArg(OPT_fretain_comments_from_system_headers); 3249 3250 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3251 switch (SSP) { 3252 default: 3253 Diags.Report(diag::err_drv_invalid_value) 3254 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3255 break; 3256 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3257 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3258 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3259 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3260 } 3261 3262 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3263 StringRef Val = A->getValue(); 3264 if (Val == "uninitialized") 3265 Opts.setTrivialAutoVarInit( 3266 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3267 else if (Val == "zero") 3268 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3269 else if (Val == "pattern") 3270 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3271 else 3272 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3273 } 3274 3275 // Parse -fsanitize= arguments. 3276 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3277 Diags, Opts.Sanitize); 3278 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3279 Opts.SanitizeAddressFieldPadding = 3280 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3281 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3282 std::vector<std::string> systemBlacklists = 3283 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3284 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3285 systemBlacklists.begin(), 3286 systemBlacklists.end()); 3287 3288 // -fxray-instrument 3289 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3290 Opts.XRayAlwaysEmitCustomEvents = 3291 Args.hasArg(OPT_fxray_always_emit_customevents); 3292 Opts.XRayAlwaysEmitTypedEvents = 3293 Args.hasArg(OPT_fxray_always_emit_typedevents); 3294 3295 // -fxray-{always,never}-instrument= filenames. 3296 Opts.XRayAlwaysInstrumentFiles = 3297 Args.getAllArgValues(OPT_fxray_always_instrument); 3298 Opts.XRayNeverInstrumentFiles = 3299 Args.getAllArgValues(OPT_fxray_never_instrument); 3300 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3301 3302 // -fforce-emit-vtables 3303 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3304 3305 // -fallow-editor-placeholders 3306 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3307 3308 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3309 3310 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3311 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3312 3313 StringRef Ver = A->getValue(); 3314 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3315 unsigned Major, Minor = 0; 3316 3317 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3318 // y or y.0 (4 <= y <= current version). 3319 if (!VerParts.first.startswith("0") && 3320 !VerParts.first.getAsInteger(10, Major) && 3321 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3322 (Major == 3 ? VerParts.second.size() == 1 && 3323 !VerParts.second.getAsInteger(10, Minor) 3324 : VerParts.first.size() == Ver.size() || 3325 VerParts.second == "0")) { 3326 // Got a valid version number. 3327 if (Major == 3 && Minor <= 8) 3328 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3329 else if (Major <= 4) 3330 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3331 else if (Major <= 6) 3332 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3333 else if (Major <= 7) 3334 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3335 else if (Major <= 9) 3336 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3337 } else if (Ver != "latest") { 3338 Diags.Report(diag::err_drv_invalid_value) 3339 << A->getAsString(Args) << A->getValue(); 3340 } 3341 } 3342 3343 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3344 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3345 3346 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3347 } 3348 3349 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3350 switch (Action) { 3351 case frontend::ASTDeclList: 3352 case frontend::ASTDump: 3353 case frontend::ASTPrint: 3354 case frontend::ASTView: 3355 case frontend::EmitAssembly: 3356 case frontend::EmitBC: 3357 case frontend::EmitHTML: 3358 case frontend::EmitLLVM: 3359 case frontend::EmitLLVMOnly: 3360 case frontend::EmitCodeGenOnly: 3361 case frontend::EmitObj: 3362 case frontend::FixIt: 3363 case frontend::GenerateModule: 3364 case frontend::GenerateModuleInterface: 3365 case frontend::GenerateHeaderModule: 3366 case frontend::GeneratePCH: 3367 case frontend::GenerateInterfaceIfsExpV1: 3368 case frontend::ParseSyntaxOnly: 3369 case frontend::ModuleFileInfo: 3370 case frontend::VerifyPCH: 3371 case frontend::PluginAction: 3372 case frontend::RewriteObjC: 3373 case frontend::RewriteTest: 3374 case frontend::RunAnalysis: 3375 case frontend::TemplightDump: 3376 case frontend::MigrateSource: 3377 return false; 3378 3379 case frontend::DumpCompilerOptions: 3380 case frontend::DumpRawTokens: 3381 case frontend::DumpTokens: 3382 case frontend::InitOnly: 3383 case frontend::PrintPreamble: 3384 case frontend::PrintPreprocessedInput: 3385 case frontend::RewriteMacros: 3386 case frontend::RunPreprocessorOnly: 3387 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3388 return true; 3389 } 3390 llvm_unreachable("invalid frontend action"); 3391 } 3392 3393 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3394 DiagnosticsEngine &Diags, 3395 frontend::ActionKind Action) { 3396 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3397 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3398 Args.hasArg(OPT_pch_through_hdrstop_use); 3399 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3400 Opts.PCHThroughHeader = 3401 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3402 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3403 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3404 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3405 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3406 3407 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3408 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3409 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3410 3411 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3412 auto Split = StringRef(A).split('='); 3413 Opts.MacroPrefixMap.insert( 3414 {std::string(Split.first), std::string(Split.second)}); 3415 } 3416 3417 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3418 StringRef Value(A->getValue()); 3419 size_t Comma = Value.find(','); 3420 unsigned Bytes = 0; 3421 unsigned EndOfLine = 0; 3422 3423 if (Comma == StringRef::npos || 3424 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3425 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3426 Diags.Report(diag::err_drv_preamble_format); 3427 else { 3428 Opts.PrecompiledPreambleBytes.first = Bytes; 3429 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3430 } 3431 } 3432 3433 // Add the __CET__ macro if a CFProtection option is set. 3434 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3435 StringRef Name = A->getValue(); 3436 if (Name == "branch") 3437 Opts.addMacroDef("__CET__=1"); 3438 else if (Name == "return") 3439 Opts.addMacroDef("__CET__=2"); 3440 else if (Name == "full") 3441 Opts.addMacroDef("__CET__=3"); 3442 } 3443 3444 // Add macros from the command line. 3445 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3446 if (A->getOption().matches(OPT_D)) 3447 Opts.addMacroDef(A->getValue()); 3448 else 3449 Opts.addMacroUndef(A->getValue()); 3450 } 3451 3452 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3453 3454 // Add the ordered list of -includes. 3455 for (const auto *A : Args.filtered(OPT_include)) 3456 Opts.Includes.emplace_back(A->getValue()); 3457 3458 for (const auto *A : Args.filtered(OPT_chain_include)) 3459 Opts.ChainedIncludes.emplace_back(A->getValue()); 3460 3461 for (const auto *A : Args.filtered(OPT_remap_file)) { 3462 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3463 3464 if (Split.second.empty()) { 3465 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3466 continue; 3467 } 3468 3469 Opts.addRemappedFile(Split.first, Split.second); 3470 } 3471 3472 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3473 StringRef Name = A->getValue(); 3474 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3475 .Case("libc++", ARCXX_libcxx) 3476 .Case("libstdc++", ARCXX_libstdcxx) 3477 .Case("none", ARCXX_nolib) 3478 .Default(~0U); 3479 if (Library == ~0U) 3480 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3481 else 3482 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3483 } 3484 3485 // Always avoid lexing editor placeholders when we're just running the 3486 // preprocessor as we never want to emit the 3487 // "editor placeholder in source file" error in PP only mode. 3488 if (isStrictlyPreprocessorAction(Action)) 3489 Opts.LexEditorPlaceholders = false; 3490 3491 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3492 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3493 } 3494 3495 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3496 ArgList &Args, 3497 frontend::ActionKind Action) { 3498 if (isStrictlyPreprocessorAction(Action)) 3499 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3500 else 3501 Opts.ShowCPP = 0; 3502 3503 Opts.ShowComments = Args.hasArg(OPT_C); 3504 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3505 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3506 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3507 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3508 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3509 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3510 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3511 } 3512 3513 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3514 DiagnosticsEngine &Diags) { 3515 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3516 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3517 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3518 StringRef Value = A->getValue(); 3519 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3520 .Case("default", llvm::EABI::Default) 3521 .Case("4", llvm::EABI::EABI4) 3522 .Case("5", llvm::EABI::EABI5) 3523 .Case("gnu", llvm::EABI::GNU) 3524 .Default(llvm::EABI::Unknown); 3525 if (EABIVersion == llvm::EABI::Unknown) 3526 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3527 << Value; 3528 else 3529 Opts.EABIVersion = EABIVersion; 3530 } 3531 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3532 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3533 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3534 Opts.LinkerVersion = 3535 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3536 Opts.Triple = std::string(Args.getLastArgValue(OPT_triple)); 3537 // Use the default target triple if unspecified. 3538 if (Opts.Triple.empty()) 3539 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3540 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3541 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3542 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3543 Opts.NVPTXUseShortPointers = Args.hasFlag( 3544 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3545 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3546 llvm::VersionTuple Version; 3547 if (Version.tryParse(A->getValue())) 3548 Diags.Report(diag::err_drv_invalid_value) 3549 << A->getAsString(Args) << A->getValue(); 3550 else 3551 Opts.SDKVersion = Version; 3552 } 3553 } 3554 3555 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3556 ArrayRef<const char *> CommandLineArgs, 3557 DiagnosticsEngine &Diags) { 3558 bool Success = true; 3559 3560 // Parse the arguments. 3561 const OptTable &Opts = getDriverOptTable(); 3562 const unsigned IncludedFlagsBitmask = options::CC1Option; 3563 unsigned MissingArgIndex, MissingArgCount; 3564 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3565 MissingArgCount, IncludedFlagsBitmask); 3566 LangOptions &LangOpts = *Res.getLangOpts(); 3567 3568 // Check for missing argument error. 3569 if (MissingArgCount) { 3570 Diags.Report(diag::err_drv_missing_argument) 3571 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3572 Success = false; 3573 } 3574 3575 // Issue errors on unknown arguments. 3576 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3577 auto ArgString = A->getAsString(Args); 3578 std::string Nearest; 3579 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3580 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3581 else 3582 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3583 << ArgString << Nearest; 3584 Success = false; 3585 } 3586 3587 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3588 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3589 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3590 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3591 Res.getDependencyOutputOpts().Targets.empty()) { 3592 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3593 Success = false; 3594 } 3595 Success &= 3596 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3597 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3598 ParseCommentArgs(LangOpts.CommentOpts, Args); 3599 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3600 // FIXME: We shouldn't have to pass the DashX option around here 3601 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3602 LangOpts.IsHeaderFile); 3603 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3604 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3605 Res.getTargetOpts(), Res.getFrontendOpts()); 3606 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3607 Res.getFileSystemOpts().WorkingDir); 3608 llvm::Triple T(Res.getTargetOpts().Triple); 3609 if (DashX.getFormat() == InputKind::Precompiled || 3610 DashX.getLanguage() == Language::LLVM_IR) { 3611 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3612 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3613 // what the input type is. 3614 if (Args.hasArg(OPT_fobjc_arc)) 3615 LangOpts.ObjCAutoRefCount = 1; 3616 // PIClevel and PIELevel are needed during code generation and this should be 3617 // set regardless of the input type. 3618 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3619 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3620 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3621 Diags, LangOpts.Sanitize); 3622 } else { 3623 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3624 // FIXME: Should we really be calling this for an Language::Asm input? 3625 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3626 Res.getPreprocessorOpts(), Diags); 3627 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3628 LangOpts.ObjCExceptions = 1; 3629 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3630 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3631 // preprocessed input as we don't expect it to be used with -std=libc++ 3632 // anyway. 3633 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3634 } 3635 } 3636 3637 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3638 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3639 3640 LangOpts.FunctionAlignment = 3641 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3642 3643 if (LangOpts.CUDA) { 3644 // During CUDA device-side compilation, the aux triple is the 3645 // triple used for host compilation. 3646 if (LangOpts.CUDAIsDevice) 3647 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3648 } 3649 3650 // Set the triple of the host for OpenMP device compile. 3651 if (LangOpts.OpenMPIsDevice) 3652 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3653 3654 // FIXME: Override value name discarding when asan or msan is used because the 3655 // backend passes depend on the name of the alloca in order to print out 3656 // names. 3657 Res.getCodeGenOpts().DiscardValueNames &= 3658 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3659 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3660 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3661 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3662 3663 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3664 Res.getFrontendOpts().ProgramAction); 3665 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3666 Res.getFrontendOpts().ProgramAction); 3667 3668 // Turn on -Wspir-compat for SPIR target. 3669 if (T.isSPIR()) 3670 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3671 3672 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3673 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3674 !Res.getLangOpts()->Sanitize.empty()) { 3675 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3676 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3677 } 3678 return Success; 3679 } 3680 3681 std::string CompilerInvocation::getModuleHash() const { 3682 // Note: For QoI reasons, the things we use as a hash here should all be 3683 // dumped via the -module-info flag. 3684 using llvm::hash_code; 3685 using llvm::hash_value; 3686 using llvm::hash_combine; 3687 using llvm::hash_combine_range; 3688 3689 // Start the signature with the compiler version. 3690 // FIXME: We'd rather use something more cryptographically sound than 3691 // CityHash, but this will do for now. 3692 hash_code code = hash_value(getClangFullRepositoryVersion()); 3693 3694 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3695 // and getClangFullRepositoryVersion() doesn't include git revision. 3696 code = hash_combine(code, serialization::VERSION_MAJOR, 3697 serialization::VERSION_MINOR); 3698 3699 // Extend the signature with the language options 3700 #define LANGOPT(Name, Bits, Default, Description) \ 3701 code = hash_combine(code, LangOpts->Name); 3702 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3703 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3704 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3705 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3706 #include "clang/Basic/LangOptions.def" 3707 3708 for (StringRef Feature : LangOpts->ModuleFeatures) 3709 code = hash_combine(code, Feature); 3710 3711 // Extend the signature with the target options. 3712 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3713 TargetOpts->ABI); 3714 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3715 code = hash_combine(code, FeatureAsWritten); 3716 3717 // Extend the signature with preprocessor options. 3718 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3719 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3720 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3721 3722 for (const auto &I : getPreprocessorOpts().Macros) { 3723 // If we're supposed to ignore this macro for the purposes of modules, 3724 // don't put it into the hash. 3725 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3726 // Check whether we're ignoring this macro. 3727 StringRef MacroDef = I.first; 3728 if (hsOpts.ModulesIgnoreMacros.count( 3729 llvm::CachedHashString(MacroDef.split('=').first))) 3730 continue; 3731 } 3732 3733 code = hash_combine(code, I.first, I.second); 3734 } 3735 3736 // Extend the signature with the sysroot and other header search options. 3737 code = hash_combine(code, hsOpts.Sysroot, 3738 hsOpts.ModuleFormat, 3739 hsOpts.UseDebugInfo, 3740 hsOpts.UseBuiltinIncludes, 3741 hsOpts.UseStandardSystemIncludes, 3742 hsOpts.UseStandardCXXIncludes, 3743 hsOpts.UseLibcxx, 3744 hsOpts.ModulesValidateDiagnosticOptions); 3745 code = hash_combine(code, hsOpts.ResourceDir); 3746 3747 if (hsOpts.ModulesStrictContextHash) { 3748 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3749 hsOpts.SystemHeaderPrefixes.end()); 3750 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3751 hsOpts.UserEntries.end()); 3752 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3753 hsOpts.UserEntries.size(), UEC); 3754 3755 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3756 #define DIAGOPT(Name, Bits, Default) \ 3757 code = hash_combine(code, diagOpts.Name); 3758 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3759 code = hash_combine(code, diagOpts.get##Name()); 3760 #include "clang/Basic/DiagnosticOptions.def" 3761 #undef DIAGOPT 3762 #undef ENUM_DIAGOPT 3763 } 3764 3765 // Extend the signature with the user build path. 3766 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3767 3768 // Extend the signature with the module file extensions. 3769 const FrontendOptions &frontendOpts = getFrontendOpts(); 3770 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3771 code = ext->hashExtension(code); 3772 } 3773 3774 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3775 // affects the debug info in the PCM. 3776 if (getCodeGenOpts().DebugTypeExtRefs) 3777 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3778 code = hash_combine(code, KeyValue.first, KeyValue.second); 3779 3780 // Extend the signature with the enabled sanitizers, if at least one is 3781 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3782 SanitizerSet SanHash = LangOpts->Sanitize; 3783 SanHash.clear(getPPTransparentSanitizers()); 3784 if (!SanHash.empty()) 3785 code = hash_combine(code, SanHash.Mask); 3786 3787 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3788 } 3789 3790 namespace clang { 3791 3792 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3793 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3794 DiagnosticsEngine &Diags) { 3795 return createVFSFromCompilerInvocation(CI, Diags, 3796 llvm::vfs::getRealFileSystem()); 3797 } 3798 3799 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3800 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3801 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3802 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3803 return BaseFS; 3804 3805 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3806 // earlier vfs files are on the bottom 3807 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3808 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3809 Result->getBufferForFile(File); 3810 if (!Buffer) { 3811 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3812 continue; 3813 } 3814 3815 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3816 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3817 /*DiagContext*/ nullptr, Result); 3818 if (!FS) { 3819 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3820 continue; 3821 } 3822 3823 Result = FS; 3824 } 3825 return Result; 3826 } 3827 3828 } // namespace clang 3829