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