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