1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/LangStandard.h" 22 #include "clang/Basic/ObjCRuntime.h" 23 #include "clang/Basic/Sanitizers.h" 24 #include "clang/Basic/SourceLocation.h" 25 #include "clang/Basic/TargetOptions.h" 26 #include "clang/Basic/Version.h" 27 #include "clang/Basic/Visibility.h" 28 #include "clang/Basic/XRayInstr.h" 29 #include "clang/Config/config.h" 30 #include "clang/Driver/Driver.h" 31 #include "clang/Driver/DriverDiagnostic.h" 32 #include "clang/Driver/Options.h" 33 #include "clang/Frontend/CommandLineSourceLoc.h" 34 #include "clang/Frontend/DependencyOutputOptions.h" 35 #include "clang/Frontend/FrontendDiagnostic.h" 36 #include "clang/Frontend/FrontendOptions.h" 37 #include "clang/Frontend/FrontendPluginRegistry.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/Utils.h" 41 #include "clang/Lex/HeaderSearchOptions.h" 42 #include "clang/Lex/PreprocessorOptions.h" 43 #include "clang/Sema/CodeCompleteOptions.h" 44 #include "clang/Serialization/ASTBitCodes.h" 45 #include "clang/Serialization/ModuleFileExtension.h" 46 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 47 #include "llvm/ADT/APInt.h" 48 #include "llvm/ADT/ArrayRef.h" 49 #include "llvm/ADT/CachedHashString.h" 50 #include "llvm/ADT/FloatingPointMode.h" 51 #include "llvm/ADT/Hashing.h" 52 #include "llvm/ADT/None.h" 53 #include "llvm/ADT/Optional.h" 54 #include "llvm/ADT/SmallString.h" 55 #include "llvm/ADT/SmallVector.h" 56 #include "llvm/ADT/StringRef.h" 57 #include "llvm/ADT/StringSwitch.h" 58 #include "llvm/ADT/Triple.h" 59 #include "llvm/ADT/Twine.h" 60 #include "llvm/IR/DebugInfoMetadata.h" 61 #include "llvm/Linker/Linker.h" 62 #include "llvm/MC/MCTargetOptions.h" 63 #include "llvm/Option/Arg.h" 64 #include "llvm/Option/ArgList.h" 65 #include "llvm/Option/OptSpecifier.h" 66 #include "llvm/Option/OptTable.h" 67 #include "llvm/Option/Option.h" 68 #include "llvm/ProfileData/InstrProfReader.h" 69 #include "llvm/Support/CodeGen.h" 70 #include "llvm/Support/Compiler.h" 71 #include "llvm/Support/Error.h" 72 #include "llvm/Support/ErrorHandling.h" 73 #include "llvm/Support/ErrorOr.h" 74 #include "llvm/Support/FileSystem.h" 75 #include "llvm/Support/Host.h" 76 #include "llvm/Support/MathExtras.h" 77 #include "llvm/Support/MemoryBuffer.h" 78 #include "llvm/Support/Path.h" 79 #include "llvm/Support/Process.h" 80 #include "llvm/Support/Regex.h" 81 #include "llvm/Support/VersionTuple.h" 82 #include "llvm/Support/VirtualFileSystem.h" 83 #include "llvm/Support/raw_ostream.h" 84 #include "llvm/Target/TargetOptions.h" 85 #include <algorithm> 86 #include <atomic> 87 #include <cassert> 88 #include <cstddef> 89 #include <cstring> 90 #include <memory> 91 #include <string> 92 #include <tuple> 93 #include <utility> 94 #include <vector> 95 96 using namespace clang; 97 using namespace driver; 98 using namespace options; 99 using namespace llvm::opt; 100 101 //===----------------------------------------------------------------------===// 102 // Initialization. 103 //===----------------------------------------------------------------------===// 104 105 CompilerInvocationBase::CompilerInvocationBase() 106 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 107 DiagnosticOpts(new DiagnosticOptions()), 108 HeaderSearchOpts(new HeaderSearchOptions()), 109 PreprocessorOpts(new PreprocessorOptions()) {} 110 111 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 112 : LangOpts(new LangOptions(*X.getLangOpts())), 113 TargetOpts(new TargetOptions(X.getTargetOpts())), 114 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 115 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 116 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 117 118 CompilerInvocationBase::~CompilerInvocationBase() = default; 119 120 //===----------------------------------------------------------------------===// 121 // Deserialization (from args) 122 //===----------------------------------------------------------------------===// 123 124 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 125 DiagnosticsEngine &Diags) { 126 unsigned DefaultOpt = llvm::CodeGenOpt::None; 127 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 128 DefaultOpt = llvm::CodeGenOpt::Default; 129 130 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 131 if (A->getOption().matches(options::OPT_O0)) 132 return llvm::CodeGenOpt::None; 133 134 if (A->getOption().matches(options::OPT_Ofast)) 135 return llvm::CodeGenOpt::Aggressive; 136 137 assert(A->getOption().matches(options::OPT_O)); 138 139 StringRef S(A->getValue()); 140 if (S == "s" || S == "z") 141 return llvm::CodeGenOpt::Default; 142 143 if (S == "g") 144 return llvm::CodeGenOpt::Less; 145 146 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 147 } 148 149 return DefaultOpt; 150 } 151 152 static unsigned getOptimizationLevelSize(ArgList &Args) { 153 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 154 if (A->getOption().matches(options::OPT_O)) { 155 switch (A->getValue()[0]) { 156 default: 157 return 0; 158 case 's': 159 return 1; 160 case 'z': 161 return 2; 162 } 163 } 164 } 165 return 0; 166 } 167 168 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 169 OptSpecifier GroupWithValue, 170 std::vector<std::string> &Diagnostics) { 171 for (auto *A : Args.filtered(Group)) { 172 if (A->getOption().getKind() == Option::FlagClass) { 173 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 174 // its name (minus the "W" or "R" at the beginning) to the warning list. 175 Diagnostics.push_back( 176 std::string(A->getOption().getName().drop_front(1))); 177 } else if (A->getOption().matches(GroupWithValue)) { 178 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 179 Diagnostics.push_back( 180 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 181 } else { 182 // Otherwise, add its value (for OPT_W_Joined and similar). 183 for (const auto *Arg : A->getValues()) 184 Diagnostics.emplace_back(Arg); 185 } 186 } 187 } 188 189 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 190 // it won't verify the input. 191 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 192 DiagnosticsEngine *Diags); 193 194 static void getAllNoBuiltinFuncValues(ArgList &Args, 195 std::vector<std::string> &Funcs) { 196 SmallVector<const char *, 8> Values; 197 for (const auto &Arg : Args) { 198 const Option &O = Arg->getOption(); 199 if (O.matches(options::OPT_fno_builtin_)) { 200 const char *FuncName = Arg->getValue(); 201 if (Builtin::Context::isBuiltinFunc(FuncName)) 202 Values.push_back(FuncName); 203 } 204 } 205 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 206 } 207 208 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 209 DiagnosticsEngine &Diags) { 210 bool Success = true; 211 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 212 StringRef Name = A->getValue(); 213 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 214 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 215 .Case(CMDFLAG, NAME##Model) 216 #include "clang/StaticAnalyzer/Core/Analyses.def" 217 .Default(NumStores); 218 if (Value == NumStores) { 219 Diags.Report(diag::err_drv_invalid_value) 220 << A->getAsString(Args) << Name; 221 Success = false; 222 } else { 223 Opts.AnalysisStoreOpt = Value; 224 } 225 } 226 227 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 228 StringRef Name = A->getValue(); 229 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 230 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 231 .Case(CMDFLAG, NAME##Model) 232 #include "clang/StaticAnalyzer/Core/Analyses.def" 233 .Default(NumConstraints); 234 if (Value == NumConstraints) { 235 Diags.Report(diag::err_drv_invalid_value) 236 << A->getAsString(Args) << Name; 237 Success = false; 238 } else { 239 Opts.AnalysisConstraintsOpt = Value; 240 } 241 } 242 243 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 244 StringRef Name = A->getValue(); 245 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 246 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 247 .Case(CMDFLAG, PD_##NAME) 248 #include "clang/StaticAnalyzer/Core/Analyses.def" 249 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 250 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 251 Diags.Report(diag::err_drv_invalid_value) 252 << A->getAsString(Args) << Name; 253 Success = false; 254 } else { 255 Opts.AnalysisDiagOpt = Value; 256 } 257 } 258 259 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 260 StringRef Name = A->getValue(); 261 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 262 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 263 .Case(CMDFLAG, NAME) 264 #include "clang/StaticAnalyzer/Core/Analyses.def" 265 .Default(NumPurgeModes); 266 if (Value == NumPurgeModes) { 267 Diags.Report(diag::err_drv_invalid_value) 268 << A->getAsString(Args) << Name; 269 Success = false; 270 } else { 271 Opts.AnalysisPurgeOpt = Value; 272 } 273 } 274 275 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 276 StringRef Name = A->getValue(); 277 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 278 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 279 .Case(CMDFLAG, NAME) 280 #include "clang/StaticAnalyzer/Core/Analyses.def" 281 .Default(NumInliningModes); 282 if (Value == NumInliningModes) { 283 Diags.Report(diag::err_drv_invalid_value) 284 << A->getAsString(Args) << Name; 285 Success = false; 286 } else { 287 Opts.InliningMode = Value; 288 } 289 } 290 291 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 292 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 293 Opts.ShowCheckerHelpDeveloper = 294 Args.hasArg(OPT_analyzer_checker_help_developer); 295 296 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 297 Opts.ShowCheckerOptionAlphaList = 298 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 299 Opts.ShowCheckerOptionDeveloperList = 300 Args.hasArg(OPT_analyzer_checker_option_help_developer); 301 302 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 303 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 304 Opts.ShouldEmitErrorsOnInvalidConfigValue = 305 /* negated */!llvm::StringSwitch<bool>( 306 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 307 .Case("true", true) 308 .Case("false", false) 309 .Default(false); 310 Opts.DisableAllCheckers = Args.hasArg(OPT_analyzer_disable_all_checks); 311 312 Opts.visualizeExplodedGraphWithGraphViz = 313 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 314 Opts.DumpExplodedGraphTo = 315 std::string(Args.getLastArgValue(OPT_analyzer_dump_egraph)); 316 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 317 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 318 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 319 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 320 Opts.AnalyzeNestedBlocks = 321 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 322 Opts.AnalyzeSpecificFunction = 323 std::string(Args.getLastArgValue(OPT_analyze_function)); 324 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 325 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 326 Opts.maxBlockVisitOnPath = 327 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 328 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 329 Opts.InlineMaxStackDepth = 330 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 331 Opts.InlineMaxStackDepth, Diags); 332 333 Opts.CheckersAndPackages.clear(); 334 for (const Arg *A : 335 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 336 A->claim(); 337 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 338 // We can have a list of comma separated checker names, e.g: 339 // '-analyzer-checker=cocoa,unix' 340 StringRef CheckerAndPackageList = A->getValue(); 341 SmallVector<StringRef, 16> CheckersAndPackages; 342 CheckerAndPackageList.split(CheckersAndPackages, ","); 343 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 344 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 345 IsEnabled); 346 } 347 348 // Go through the analyzer configuration options. 349 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 350 351 // We can have a list of comma separated config names, e.g: 352 // '-analyzer-config key1=val1,key2=val2' 353 StringRef configList = A->getValue(); 354 SmallVector<StringRef, 4> configVals; 355 configList.split(configVals, ","); 356 for (const auto &configVal : configVals) { 357 StringRef key, val; 358 std::tie(key, val) = configVal.split("="); 359 if (val.empty()) { 360 Diags.Report(SourceLocation(), 361 diag::err_analyzer_config_no_value) << configVal; 362 Success = false; 363 break; 364 } 365 if (val.find('=') != StringRef::npos) { 366 Diags.Report(SourceLocation(), 367 diag::err_analyzer_config_multiple_values) 368 << configVal; 369 Success = false; 370 break; 371 } 372 373 // TODO: Check checker options too, possibly in CheckerRegistry. 374 // Leave unknown non-checker configs unclaimed. 375 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 376 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 377 Diags.Report(diag::err_analyzer_config_unknown) << key; 378 continue; 379 } 380 381 A->claim(); 382 Opts.Config[key] = std::string(val); 383 } 384 } 385 386 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 387 parseAnalyzerConfigs(Opts, &Diags); 388 else 389 parseAnalyzerConfigs(Opts, nullptr); 390 391 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 392 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 393 if (i != 0) 394 os << " "; 395 os << Args.getArgString(i); 396 } 397 os.flush(); 398 399 return Success; 400 } 401 402 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 403 StringRef OptionName, StringRef DefaultVal) { 404 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 405 } 406 407 static void initOption(AnalyzerOptions::ConfigTable &Config, 408 DiagnosticsEngine *Diags, 409 StringRef &OptionField, StringRef Name, 410 StringRef DefaultVal) { 411 // String options may be known to invalid (e.g. if the expected string is a 412 // file name, but the file does not exist), those will have to be checked in 413 // parseConfigs. 414 OptionField = getStringOption(Config, Name, DefaultVal); 415 } 416 417 static void initOption(AnalyzerOptions::ConfigTable &Config, 418 DiagnosticsEngine *Diags, 419 bool &OptionField, StringRef Name, bool DefaultVal) { 420 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 421 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 422 .Case("true", true) 423 .Case("false", false) 424 .Default(None); 425 426 if (!PossiblyInvalidVal) { 427 if (Diags) 428 Diags->Report(diag::err_analyzer_config_invalid_input) 429 << Name << "a boolean"; 430 else 431 OptionField = DefaultVal; 432 } else 433 OptionField = PossiblyInvalidVal.getValue(); 434 } 435 436 static void initOption(AnalyzerOptions::ConfigTable &Config, 437 DiagnosticsEngine *Diags, 438 unsigned &OptionField, StringRef Name, 439 unsigned DefaultVal) { 440 441 OptionField = DefaultVal; 442 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 443 .getAsInteger(0, OptionField); 444 if (Diags && HasFailed) 445 Diags->Report(diag::err_analyzer_config_invalid_input) 446 << Name << "an unsigned"; 447 } 448 449 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 450 DiagnosticsEngine *Diags) { 451 // TODO: There's no need to store the entire configtable, it'd be plenty 452 // enough tostore checker options. 453 454 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 455 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 456 457 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 458 SHALLOW_VAL, DEEP_VAL) \ 459 switch (AnOpts.getUserMode()) { \ 460 case UMK_Shallow: \ 461 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 462 break; \ 463 case UMK_Deep: \ 464 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 465 break; \ 466 } \ 467 468 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 469 #undef ANALYZER_OPTION 470 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 471 472 // At this point, AnalyzerOptions is configured. Let's validate some options. 473 474 // FIXME: Here we try to validate the silenced checkers or packages are valid. 475 // The current approach only validates the registered checkers which does not 476 // contain the runtime enabled checkers and optimally we would validate both. 477 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 478 std::vector<StringRef> Checkers = 479 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 480 std::vector<StringRef> Packages = 481 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 482 483 SmallVector<StringRef, 16> CheckersAndPackages; 484 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 485 486 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 487 if (Diags) { 488 bool IsChecker = CheckerOrPackage.contains('.'); 489 bool IsValidName = 490 IsChecker 491 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 492 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 493 494 if (!IsValidName) 495 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 496 << CheckerOrPackage; 497 } 498 499 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 500 } 501 } 502 503 if (!Diags) 504 return; 505 506 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 507 Diags->Report(diag::err_analyzer_config_invalid_input) 508 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 509 510 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 511 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 512 << "a filename"; 513 514 if (!AnOpts.ModelPath.empty() && 515 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 516 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 517 << "a filename"; 518 } 519 520 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 521 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 522 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 523 return true; 524 } 525 526 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 527 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 528 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 529 } 530 531 static llvm::Reloc::Model getRelocModel(ArgList &Args, 532 DiagnosticsEngine &Diags) { 533 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 534 StringRef Value = A->getValue(); 535 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 536 .Case("static", llvm::Reloc::Static) 537 .Case("pic", llvm::Reloc::PIC_) 538 .Case("ropi", llvm::Reloc::ROPI) 539 .Case("rwpi", llvm::Reloc::RWPI) 540 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 541 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 542 .Default(None); 543 if (RM.hasValue()) 544 return *RM; 545 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 546 } 547 return llvm::Reloc::PIC_; 548 } 549 550 /// Create a new Regex instance out of the string value in \p RpassArg. 551 /// It returns a pointer to the newly generated Regex instance. 552 static std::shared_ptr<llvm::Regex> 553 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 554 Arg *RpassArg) { 555 StringRef Val = RpassArg->getValue(); 556 std::string RegexError; 557 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 558 if (!Pattern->isValid(RegexError)) { 559 Diags.Report(diag::err_drv_optimization_remark_pattern) 560 << RegexError << RpassArg->getAsString(Args); 561 Pattern.reset(); 562 } 563 return Pattern; 564 } 565 566 static bool parseDiagnosticLevelMask(StringRef FlagName, 567 const std::vector<std::string> &Levels, 568 DiagnosticsEngine *Diags, 569 DiagnosticLevelMask &M) { 570 bool Success = true; 571 for (const auto &Level : Levels) { 572 DiagnosticLevelMask const PM = 573 llvm::StringSwitch<DiagnosticLevelMask>(Level) 574 .Case("note", DiagnosticLevelMask::Note) 575 .Case("remark", DiagnosticLevelMask::Remark) 576 .Case("warning", DiagnosticLevelMask::Warning) 577 .Case("error", DiagnosticLevelMask::Error) 578 .Default(DiagnosticLevelMask::None); 579 if (PM == DiagnosticLevelMask::None) { 580 Success = false; 581 if (Diags) 582 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 583 } 584 M = M | PM; 585 } 586 return Success; 587 } 588 589 static void parseSanitizerKinds(StringRef FlagName, 590 const std::vector<std::string> &Sanitizers, 591 DiagnosticsEngine &Diags, SanitizerSet &S) { 592 for (const auto &Sanitizer : Sanitizers) { 593 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 594 if (K == SanitizerMask()) 595 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 596 else 597 S.set(K, true); 598 } 599 } 600 601 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 602 ArgList &Args, DiagnosticsEngine &D, 603 XRayInstrSet &S) { 604 llvm::SmallVector<StringRef, 2> BundleParts; 605 llvm::SplitString(Bundle, BundleParts, ","); 606 for (const auto &B : BundleParts) { 607 auto Mask = parseXRayInstrValue(B); 608 if (Mask == XRayInstrKind::None) 609 if (B != "none") 610 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 611 else 612 S.Mask = Mask; 613 else if (Mask == XRayInstrKind::All) 614 S.Mask = Mask; 615 else 616 S.set(Mask, true); 617 } 618 } 619 620 // Set the profile kind for fprofile-instrument. 621 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 622 DiagnosticsEngine &Diags) { 623 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 624 if (A == nullptr) 625 return; 626 StringRef S = A->getValue(); 627 unsigned I = llvm::StringSwitch<unsigned>(S) 628 .Case("none", CodeGenOptions::ProfileNone) 629 .Case("clang", CodeGenOptions::ProfileClangInstr) 630 .Case("llvm", CodeGenOptions::ProfileIRInstr) 631 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 632 .Default(~0U); 633 if (I == ~0U) { 634 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 635 << S; 636 return; 637 } 638 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 639 Opts.setProfileInstr(Instrumentor); 640 } 641 642 // Set the profile kind using fprofile-instrument-use-path. 643 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 644 const Twine &ProfileName) { 645 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 646 // In error, return silently and let Clang PGOUse report the error message. 647 if (auto E = ReaderOrErr.takeError()) { 648 llvm::consumeError(std::move(E)); 649 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 650 return; 651 } 652 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 653 std::move(ReaderOrErr.get()); 654 if (PGOReader->isIRLevelProfile()) { 655 if (PGOReader->hasCSIRLevelProfile()) 656 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 657 else 658 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 659 } else 660 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 661 } 662 663 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 664 DiagnosticsEngine &Diags, 665 const TargetOptions &TargetOpts, 666 const FrontendOptions &FrontendOpts) { 667 bool Success = true; 668 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 669 670 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 671 // TODO: This could be done in Driver 672 unsigned MaxOptLevel = 3; 673 if (OptimizationLevel > MaxOptLevel) { 674 // If the optimization level is not supported, fall back on the default 675 // optimization 676 Diags.Report(diag::warn_drv_optimization_value) 677 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 678 OptimizationLevel = MaxOptLevel; 679 } 680 Opts.OptimizationLevel = OptimizationLevel; 681 682 // At O0 we want to fully disable inlining outside of cases marked with 683 // 'alwaysinline' that are required for correctness. 684 Opts.setInlining((Opts.OptimizationLevel == 0) 685 ? CodeGenOptions::OnlyAlwaysInlining 686 : CodeGenOptions::NormalInlining); 687 // Explicit inlining flags can disable some or all inlining even at 688 // optimization levels above zero. 689 if (Arg *InlineArg = Args.getLastArg( 690 options::OPT_finline_functions, options::OPT_finline_hint_functions, 691 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 692 if (Opts.OptimizationLevel > 0) { 693 const Option &InlineOpt = InlineArg->getOption(); 694 if (InlineOpt.matches(options::OPT_finline_functions)) 695 Opts.setInlining(CodeGenOptions::NormalInlining); 696 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 697 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 698 else 699 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 700 } 701 } 702 703 Opts.ExperimentalNewPassManager = Args.hasFlag( 704 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 705 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 706 707 Opts.DebugPassManager = 708 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 709 /* Default */ false); 710 711 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 712 StringRef Name = A->getValue(); 713 if (Name == "Accelerate") 714 Opts.setVecLib(CodeGenOptions::Accelerate); 715 else if (Name == "MASSV") 716 Opts.setVecLib(CodeGenOptions::MASSV); 717 else if (Name == "SVML") 718 Opts.setVecLib(CodeGenOptions::SVML); 719 else if (Name == "none") 720 Opts.setVecLib(CodeGenOptions::NoLibrary); 721 else 722 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 723 } 724 725 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 726 unsigned Val = 727 llvm::StringSwitch<unsigned>(A->getValue()) 728 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 729 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 730 .Case("constructor", codegenoptions::DebugInfoConstructor) 731 .Case("limited", codegenoptions::LimitedDebugInfo) 732 .Case("standalone", codegenoptions::FullDebugInfo) 733 .Default(~0U); 734 if (Val == ~0U) 735 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 736 << A->getValue(); 737 else 738 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 739 } 740 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 741 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 742 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 743 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 744 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 745 .Default(~0U); 746 if (Val == ~0U) 747 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 748 << A->getValue(); 749 else 750 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 751 } 752 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 753 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 754 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 755 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 756 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 757 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 758 Opts.VirtualFunctionElimination = 759 Args.hasArg(OPT_fvirtual_function_elimination); 760 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 761 Opts.SplitDwarfFile = std::string(Args.getLastArgValue(OPT_split_dwarf_file)); 762 Opts.SplitDwarfOutput = 763 std::string(Args.getLastArgValue(OPT_split_dwarf_output)); 764 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 765 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 766 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 767 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 768 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 769 Opts.ForceDwarfFrameSection = Args.hasArg(OPT_fforce_dwarf_frame); 770 771 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 772 auto Split = StringRef(Arg).split('='); 773 Opts.DebugPrefixMap.insert( 774 {std::string(Split.first), std::string(Split.second)}); 775 } 776 777 if (const Arg *A = 778 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 779 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 780 781 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 782 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 783 784 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 785 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 786 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 787 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 788 789 llvm::Triple T(TargetOpts.Triple); 790 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 791 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 792 Opts.EmitCallSiteInfo = true; 793 794 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 795 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 796 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 797 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 798 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 799 OPT_fuse_register_sized_bitfield_access); 800 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 801 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 802 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 803 Args.hasArg(OPT_new_struct_path_tbaa); 804 Opts.FineGrainedBitfieldAccesses = 805 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 806 OPT_fno_fine_grained_bitfield_accesses, false); 807 Opts.DwarfDebugFlags = 808 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 809 Opts.RecordCommandLine = 810 std::string(Args.getLastArgValue(OPT_record_command_line)); 811 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 812 Opts.NoCommon = !Args.hasArg(OPT_fcommon); 813 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables); 814 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 815 Opts.OptimizeSize = getOptimizationLevelSize(Args); 816 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 817 Args.hasArg(OPT_ffreestanding)); 818 if (Opts.SimplifyLibCalls) 819 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 820 Opts.UnrollLoops = 821 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 822 (Opts.OptimizationLevel > 1)); 823 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 824 825 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 826 Opts.CallGraphProfile = !Opts.DisableIntegratedAS; 827 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 828 Opts.SampleProfileFile = 829 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 830 Opts.DebugInfoForProfiling = Args.hasFlag( 831 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 832 Opts.DebugNameTable = static_cast<unsigned>( 833 Args.hasArg(OPT_ggnu_pubnames) 834 ? llvm::DICompileUnit::DebugNameTableKind::GNU 835 : Args.hasArg(OPT_gpubnames) 836 ? llvm::DICompileUnit::DebugNameTableKind::Default 837 : llvm::DICompileUnit::DebugNameTableKind::None); 838 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 839 840 setPGOInstrumentor(Opts, Args, Diags); 841 Opts.InstrProfileOutput = 842 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 843 Opts.ProfileInstrumentUsePath = 844 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 845 if (!Opts.ProfileInstrumentUsePath.empty()) 846 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 847 Opts.ProfileRemappingFile = 848 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 849 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 850 Diags.Report(diag::err_drv_argument_only_allowed_with) 851 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 852 << "-fexperimental-new-pass-manager"; 853 } 854 855 Opts.CoverageMapping = 856 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 857 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 858 Opts.AsmVerbose = !Args.hasArg(OPT_fno_verbose_asm); 859 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 860 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 861 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 862 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 863 Opts.RegisterGlobalDtorsWithAtExit = 864 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 865 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 866 Opts.CodeModel = TargetOpts.CodeModel; 867 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 868 869 // Handle -mframe-pointer option. 870 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 871 CodeGenOptions::FramePointerKind FP; 872 StringRef Name = A->getValue(); 873 bool ValidFP = true; 874 if (Name == "none") 875 FP = CodeGenOptions::FramePointerKind::None; 876 else if (Name == "non-leaf") 877 FP = CodeGenOptions::FramePointerKind::NonLeaf; 878 else if (Name == "all") 879 FP = CodeGenOptions::FramePointerKind::All; 880 else { 881 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 882 Success = false; 883 ValidFP = false; 884 } 885 if (ValidFP) 886 Opts.setFramePointer(FP); 887 } 888 889 Opts.DisableFree = Args.hasArg(OPT_disable_free); 890 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 891 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 892 Opts.NoEscapingBlockTailCalls = 893 Args.hasArg(OPT_fno_escaping_block_tail_calls); 894 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 895 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 896 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 897 Args.hasArg(OPT_cl_fast_relaxed_math); 898 Opts.LimitFloatPrecision = 899 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 900 Opts.CorrectlyRoundedDivSqrt = 901 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 902 Opts.UniformWGSize = 903 Args.hasArg(OPT_cl_uniform_work_group_size); 904 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 905 Opts.StrictFloatCastOverflow = 906 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 907 908 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 909 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 910 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 911 Opts.SmallDataLimit = 912 getLastArgIntValue(Args, OPT_msmall_data_limit, 0, Diags); 913 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 914 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 915 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 916 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 917 Opts.IncrementalLinkerCompatible = 918 Args.hasArg(OPT_mincremental_linker_compatible); 919 Opts.PIECopyRelocations = 920 Args.hasArg(OPT_mpie_copy_relocations); 921 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 922 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 923 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 924 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 925 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 926 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 927 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 928 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 929 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 930 Opts.RelocationModel = getRelocModel(Args, Diags); 931 Opts.ThreadModel = 932 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 933 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 934 Diags.Report(diag::err_drv_invalid_value) 935 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 936 << Opts.ThreadModel; 937 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 938 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 939 940 Opts.BBSections = 941 std::string(Args.getLastArgValue(OPT_fbasic_block_sections_EQ, "none")); 942 943 // Basic Block Sections implies Function Sections. 944 Opts.FunctionSections = 945 Args.hasArg(OPT_ffunction_sections) || 946 (Opts.BBSections != "none" && Opts.BBSections != "labels"); 947 948 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 949 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 950 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 951 Opts.UniqueBasicBlockSectionNames = 952 Args.hasArg(OPT_funique_basic_block_section_names); 953 Opts.UniqueInternalLinkageNames = 954 Args.hasArg(OPT_funique_internal_linkage_names); 955 956 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 957 958 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 959 960 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 961 962 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 963 964 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 965 Opts.PrepareForThinLTO = false; 966 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 967 StringRef S = A->getValue(); 968 if (S == "thin") 969 Opts.PrepareForThinLTO = true; 970 else if (S != "full") 971 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 972 } 973 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 974 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 975 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 976 if (IK.getLanguage() != Language::LLVM_IR) 977 Diags.Report(diag::err_drv_argument_only_allowed_with) 978 << A->getAsString(Args) << "-x ir"; 979 Opts.ThinLTOIndexFile = 980 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 981 } 982 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 983 Opts.SaveTempsFilePrefix = 984 llvm::StringSwitch<std::string>(A->getValue()) 985 .Case("obj", FrontendOpts.OutputFile) 986 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 987 988 Opts.ThinLinkBitcodeFile = 989 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 990 991 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 992 993 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 994 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 995 996 Opts.PreferVectorWidth = 997 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 998 999 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1000 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1001 1002 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1003 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1004 1005 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 1006 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1007 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1008 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1009 Opts.CoverageDataFile = 1010 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1011 Opts.CoverageNotesFile = 1012 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1013 Opts.ProfileFilterFiles = 1014 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1015 Opts.ProfileExcludeFiles = 1016 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1017 if (Args.hasArg(OPT_coverage_version_EQ)) { 1018 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1019 if (CoverageVersion.size() != 4) { 1020 Diags.Report(diag::err_drv_invalid_value) 1021 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1022 << CoverageVersion; 1023 } else { 1024 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1025 } 1026 } 1027 } 1028 // Handle -fembed-bitcode option. 1029 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1030 StringRef Name = A->getValue(); 1031 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1032 .Case("off", CodeGenOptions::Embed_Off) 1033 .Case("all", CodeGenOptions::Embed_All) 1034 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1035 .Case("marker", CodeGenOptions::Embed_Marker) 1036 .Default(~0U); 1037 if (Model == ~0U) { 1038 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1039 Success = false; 1040 } else 1041 Opts.setEmbedBitcode( 1042 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1043 } 1044 // FIXME: For backend options that are not yet recorded as function 1045 // attributes in the IR, keep track of them so we can embed them in a 1046 // separate data section and use them when building the bitcode. 1047 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1048 for (const auto &A : Args) { 1049 // Do not encode output and input. 1050 if (A->getOption().getID() == options::OPT_o || 1051 A->getOption().getID() == options::OPT_INPUT || 1052 A->getOption().getID() == options::OPT_x || 1053 A->getOption().getID() == options::OPT_fembed_bitcode || 1054 (A->getOption().getGroup().isValid() && 1055 A->getOption().getGroup().getID() == options::OPT_W_Group)) 1056 continue; 1057 ArgStringList ASL; 1058 A->render(Args, ASL); 1059 for (const auto &arg : ASL) { 1060 StringRef ArgStr(arg); 1061 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1062 // using \00 to separate each commandline options. 1063 Opts.CmdArgs.push_back('\0'); 1064 } 1065 } 1066 } 1067 1068 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1069 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1070 Opts.InstrumentFunctionsAfterInlining = 1071 Args.hasArg(OPT_finstrument_functions_after_inlining); 1072 Opts.InstrumentFunctionEntryBare = 1073 Args.hasArg(OPT_finstrument_function_entry_bare); 1074 1075 Opts.XRayInstrumentFunctions = 1076 Args.hasArg(OPT_fxray_instrument); 1077 Opts.XRayAlwaysEmitCustomEvents = 1078 Args.hasArg(OPT_fxray_always_emit_customevents); 1079 Opts.XRayAlwaysEmitTypedEvents = 1080 Args.hasArg(OPT_fxray_always_emit_typedevents); 1081 Opts.XRayInstructionThreshold = 1082 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1083 Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops); 1084 1085 auto XRayInstrBundles = 1086 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1087 if (XRayInstrBundles.empty()) 1088 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1089 else 1090 for (const auto &A : XRayInstrBundles) 1091 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1092 Diags, Opts.XRayInstrumentationBundle); 1093 1094 Opts.PatchableFunctionEntryCount = 1095 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1096 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1097 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1098 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1099 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1100 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1101 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1102 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1103 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1104 1105 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1106 StringRef Name = A->getValue(); 1107 if (Name == "full") { 1108 Opts.CFProtectionReturn = 1; 1109 Opts.CFProtectionBranch = 1; 1110 } else if (Name == "return") 1111 Opts.CFProtectionReturn = 1; 1112 else if (Name == "branch") 1113 Opts.CFProtectionBranch = 1; 1114 else if (Name != "none") { 1115 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1116 Success = false; 1117 } 1118 } 1119 1120 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1121 OPT_compress_debug_sections_EQ)) { 1122 if (A->getOption().getID() == OPT_compress_debug_sections) { 1123 // TODO: be more clever about the compression type auto-detection 1124 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1125 } else { 1126 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1127 .Case("none", llvm::DebugCompressionType::None) 1128 .Case("zlib", llvm::DebugCompressionType::Z) 1129 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1130 .Default(llvm::DebugCompressionType::None); 1131 Opts.setCompressDebugSections(DCT); 1132 } 1133 } 1134 1135 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1136 Opts.DebugCompilationDir = 1137 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1138 for (auto *A : 1139 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1140 CodeGenOptions::BitcodeFileToLink F; 1141 F.Filename = A->getValue(); 1142 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1143 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1144 // When linking CUDA bitcode, propagate function attributes so that 1145 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1146 F.PropagateAttrs = true; 1147 F.Internalize = true; 1148 } 1149 Opts.LinkBitcodeFiles.push_back(F); 1150 } 1151 Opts.SanitizeCoverageType = 1152 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1153 Opts.SanitizeCoverageIndirectCalls = 1154 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1155 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1156 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1157 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1158 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1159 Opts.SanitizeCoverage8bitCounters = 1160 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1161 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1162 Opts.SanitizeCoverageTracePCGuard = 1163 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1164 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1165 Opts.SanitizeCoverageInline8bitCounters = 1166 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1167 Opts.SanitizeCoverageInlineBoolFlag = 1168 Args.hasArg(OPT_fsanitize_coverage_inline_bool_flag); 1169 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1170 Opts.SanitizeCoverageStackDepth = 1171 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1172 Opts.SanitizeCoverageWhitelistFiles = 1173 Args.getAllArgValues(OPT_fsanitize_coverage_whitelist); 1174 Opts.SanitizeCoverageBlacklistFiles = 1175 Args.getAllArgValues(OPT_fsanitize_coverage_blacklist); 1176 Opts.SanitizeMemoryTrackOrigins = 1177 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1178 Opts.SanitizeMemoryUseAfterDtor = 1179 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1180 OPT_fno_sanitize_memory_use_after_dtor, 1181 false); 1182 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1183 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1184 Opts.SanitizeCfiICallGeneralizePointers = 1185 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1186 Opts.SanitizeCfiCanonicalJumpTables = 1187 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1188 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1189 if (Arg *A = Args.getLastArg( 1190 OPT_fsanitize_address_poison_custom_array_cookie, 1191 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1192 Opts.SanitizeAddressPoisonCustomArrayCookie = 1193 A->getOption().getID() == 1194 OPT_fsanitize_address_poison_custom_array_cookie; 1195 } 1196 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1197 OPT_fno_sanitize_address_use_after_scope)) { 1198 Opts.SanitizeAddressUseAfterScope = 1199 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1200 } 1201 Opts.SanitizeAddressGlobalsDeadStripping = 1202 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1203 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1204 OPT_fno_sanitize_address_use_odr_indicator)) { 1205 Opts.SanitizeAddressUseOdrIndicator = 1206 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1207 } 1208 Opts.SSPBufferSize = 1209 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1210 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1211 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1212 StringRef Val = A->getValue(); 1213 unsigned StackAlignment = Opts.StackAlignment; 1214 Val.getAsInteger(10, StackAlignment); 1215 Opts.StackAlignment = StackAlignment; 1216 } 1217 1218 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1219 StringRef Val = A->getValue(); 1220 unsigned StackProbeSize = Opts.StackProbeSize; 1221 Val.getAsInteger(0, StackProbeSize); 1222 Opts.StackProbeSize = StackProbeSize; 1223 } 1224 1225 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1226 1227 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1228 1229 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1230 StringRef Name = A->getValue(); 1231 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1232 .Case("legacy", CodeGenOptions::Legacy) 1233 .Case("non-legacy", CodeGenOptions::NonLegacy) 1234 .Case("mixed", CodeGenOptions::Mixed) 1235 .Default(~0U); 1236 if (Method == ~0U) { 1237 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1238 Success = false; 1239 } else { 1240 Opts.setObjCDispatchMethod( 1241 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1242 } 1243 } 1244 1245 1246 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1247 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1248 1249 if (Args.getLastArg(OPT_femulated_tls) || 1250 Args.getLastArg(OPT_fno_emulated_tls)) { 1251 Opts.ExplicitEmulatedTLS = true; 1252 Opts.EmulatedTLS = 1253 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1254 } 1255 1256 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1257 StringRef Name = A->getValue(); 1258 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1259 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1260 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1261 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1262 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1263 .Default(~0U); 1264 if (Model == ~0U) { 1265 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1266 Success = false; 1267 } else { 1268 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1269 } 1270 } 1271 1272 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1273 1274 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1275 StringRef Val = A->getValue(); 1276 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1277 if (!Opts.FPDenormalMode.isValid()) 1278 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1279 } 1280 1281 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1282 StringRef Val = A->getValue(); 1283 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1284 if (!Opts.FP32DenormalMode.isValid()) 1285 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1286 } 1287 1288 // X86_32 has -fppc-struct-return and -freg-struct-return. 1289 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1290 if (Arg *A = 1291 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1292 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1293 // TODO: We might want to consider enabling these options on AIX in the 1294 // future. 1295 if (T.isOSAIX()) 1296 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1297 << A->getSpelling() << T.str(); 1298 1299 const Option &O = A->getOption(); 1300 if (O.matches(OPT_fpcc_struct_return) || 1301 O.matches(OPT_maix_struct_return)) { 1302 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1303 } else { 1304 assert(O.matches(OPT_freg_struct_return) || 1305 O.matches(OPT_msvr4_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 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1399 1400 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1401 1402 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1403 1404 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1405 1406 Opts.SymbolPartition = 1407 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1408 1409 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1410 return Success; 1411 } 1412 1413 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1414 ArgList &Args) { 1415 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1416 Opts.Targets = Args.getAllArgValues(OPT_MT); 1417 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1418 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1419 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1420 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1421 Opts.HeaderIncludeOutputFile = 1422 std::string(Args.getLastArgValue(OPT_header_include_file)); 1423 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1424 if (Args.hasArg(OPT_show_includes)) { 1425 // Writing both /showIncludes and preprocessor output to stdout 1426 // would produce interleaved output, so use stderr for /showIncludes. 1427 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1428 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1429 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1430 else 1431 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1432 } else { 1433 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1434 } 1435 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1436 Opts.ModuleDependencyOutputDir = 1437 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1438 if (Args.hasArg(OPT_MV)) 1439 Opts.OutputFormat = DependencyOutputFormat::NMake; 1440 // Add sanitizer blacklists as extra dependencies. 1441 // They won't be discovered by the regular preprocessor, so 1442 // we let make / ninja to know about this implicit dependency. 1443 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1444 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1445 StringRef Val = A->getValue(); 1446 if (Val.find('=') == StringRef::npos) 1447 Opts.ExtraDeps.push_back(std::string(Val)); 1448 } 1449 if (Opts.IncludeSystemHeaders) { 1450 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1451 StringRef Val = A->getValue(); 1452 if (Val.find('=') == StringRef::npos) 1453 Opts.ExtraDeps.push_back(std::string(Val)); 1454 } 1455 } 1456 } 1457 1458 // Propagate the extra dependencies. 1459 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1460 Opts.ExtraDeps.push_back(A->getValue()); 1461 } 1462 1463 // Only the -fmodule-file=<file> form. 1464 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1465 StringRef Val = A->getValue(); 1466 if (Val.find('=') == StringRef::npos) 1467 Opts.ExtraDeps.push_back(std::string(Val)); 1468 } 1469 } 1470 1471 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1472 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1473 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1474 // Support both clang's -f[no-]color-diagnostics and gcc's 1475 // -f[no-]diagnostics-colors[=never|always|auto]. 1476 enum { 1477 Colors_On, 1478 Colors_Off, 1479 Colors_Auto 1480 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1481 for (auto *A : Args) { 1482 const Option &O = A->getOption(); 1483 if (O.matches(options::OPT_fcolor_diagnostics) || 1484 O.matches(options::OPT_fdiagnostics_color)) { 1485 ShowColors = Colors_On; 1486 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1487 O.matches(options::OPT_fno_diagnostics_color)) { 1488 ShowColors = Colors_Off; 1489 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1490 StringRef Value(A->getValue()); 1491 if (Value == "always") 1492 ShowColors = Colors_On; 1493 else if (Value == "never") 1494 ShowColors = Colors_Off; 1495 else if (Value == "auto") 1496 ShowColors = Colors_Auto; 1497 } 1498 } 1499 return ShowColors == Colors_On || 1500 (ShowColors == Colors_Auto && 1501 llvm::sys::Process::StandardErrHasColors()); 1502 } 1503 1504 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1505 DiagnosticsEngine *Diags) { 1506 bool Success = true; 1507 for (const auto &Prefix : VerifyPrefixes) { 1508 // Every prefix must start with a letter and contain only alphanumeric 1509 // characters, hyphens, and underscores. 1510 auto BadChar = llvm::find_if(Prefix, [](char C) { 1511 return !isAlphanumeric(C) && C != '-' && C != '_'; 1512 }); 1513 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1514 Success = false; 1515 if (Diags) { 1516 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1517 Diags->Report(diag::note_drv_verify_prefix_spelling); 1518 } 1519 } 1520 } 1521 return Success; 1522 } 1523 1524 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1525 DiagnosticsEngine *Diags, 1526 bool DefaultDiagColor) { 1527 bool Success = true; 1528 1529 Opts.DiagnosticLogFile = 1530 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1531 if (Arg *A = 1532 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1533 Opts.DiagnosticSerializationFile = A->getValue(); 1534 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1535 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1536 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1537 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1538 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1539 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1540 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1541 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1542 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1543 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1544 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1545 1546 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1547 1548 // Default behavior is to not to show note include stacks. 1549 Opts.ShowNoteIncludeStack = false; 1550 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1551 OPT_fno_diagnostics_show_note_include_stack)) 1552 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1553 Opts.ShowNoteIncludeStack = true; 1554 1555 StringRef ShowOverloads = 1556 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1557 if (ShowOverloads == "best") 1558 Opts.setShowOverloads(Ovl_Best); 1559 else if (ShowOverloads == "all") 1560 Opts.setShowOverloads(Ovl_All); 1561 else { 1562 Success = false; 1563 if (Diags) 1564 Diags->Report(diag::err_drv_invalid_value) 1565 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1566 << ShowOverloads; 1567 } 1568 1569 StringRef ShowCategory = 1570 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1571 if (ShowCategory == "none") 1572 Opts.ShowCategories = 0; 1573 else if (ShowCategory == "id") 1574 Opts.ShowCategories = 1; 1575 else if (ShowCategory == "name") 1576 Opts.ShowCategories = 2; 1577 else { 1578 Success = false; 1579 if (Diags) 1580 Diags->Report(diag::err_drv_invalid_value) 1581 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1582 << ShowCategory; 1583 } 1584 1585 StringRef Format = 1586 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1587 if (Format == "clang") 1588 Opts.setFormat(DiagnosticOptions::Clang); 1589 else if (Format == "msvc") 1590 Opts.setFormat(DiagnosticOptions::MSVC); 1591 else if (Format == "msvc-fallback") { 1592 Opts.setFormat(DiagnosticOptions::MSVC); 1593 Opts.CLFallbackMode = true; 1594 } else if (Format == "vi") 1595 Opts.setFormat(DiagnosticOptions::Vi); 1596 else { 1597 Success = false; 1598 if (Diags) 1599 Diags->Report(diag::err_drv_invalid_value) 1600 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1601 << Format; 1602 } 1603 1604 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1605 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1606 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1607 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1608 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1609 if (Args.hasArg(OPT_verify)) 1610 Opts.VerifyPrefixes.push_back("expected"); 1611 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1612 // then sort it to prepare for fast lookup using std::binary_search. 1613 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1614 Opts.VerifyDiagnostics = false; 1615 Success = false; 1616 } 1617 else 1618 llvm::sort(Opts.VerifyPrefixes); 1619 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1620 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1621 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1622 Diags, DiagMask); 1623 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1624 DiagMask = DiagnosticLevelMask::All; 1625 Opts.setVerifyIgnoreUnexpected(DiagMask); 1626 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1627 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1628 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1629 Opts.MacroBacktraceLimit = 1630 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1631 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1632 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1633 Args, OPT_ftemplate_backtrace_limit, 1634 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1635 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1636 Args, OPT_fconstexpr_backtrace_limit, 1637 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1638 Opts.SpellCheckingLimit = getLastArgIntValue( 1639 Args, OPT_fspell_checking_limit, 1640 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1641 Opts.SnippetLineLimit = getLastArgIntValue( 1642 Args, OPT_fcaret_diagnostics_max_lines, 1643 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1644 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1645 DiagnosticOptions::DefaultTabStop, Diags); 1646 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1647 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1648 if (Diags) 1649 Diags->Report(diag::warn_ignoring_ftabstop_value) 1650 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1651 } 1652 Opts.MessageLength = 1653 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1654 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1655 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1656 1657 return Success; 1658 } 1659 1660 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1661 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1662 } 1663 1664 /// Parse the argument to the -ftest-module-file-extension 1665 /// command-line argument. 1666 /// 1667 /// \returns true on error, false on success. 1668 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1669 std::string &BlockName, 1670 unsigned &MajorVersion, 1671 unsigned &MinorVersion, 1672 bool &Hashed, 1673 std::string &UserInfo) { 1674 SmallVector<StringRef, 5> Args; 1675 Arg.split(Args, ':', 5); 1676 if (Args.size() < 5) 1677 return true; 1678 1679 BlockName = std::string(Args[0]); 1680 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1681 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1682 if (Args[3].getAsInteger(2, Hashed)) return true; 1683 if (Args.size() > 4) 1684 UserInfo = std::string(Args[4]); 1685 return false; 1686 } 1687 1688 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1689 DiagnosticsEngine &Diags, 1690 bool &IsHeaderFile) { 1691 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1692 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1693 switch (A->getOption().getID()) { 1694 default: 1695 llvm_unreachable("Invalid option in group!"); 1696 case OPT_ast_list: 1697 Opts.ProgramAction = frontend::ASTDeclList; break; 1698 case OPT_ast_dump_all_EQ: 1699 case OPT_ast_dump_EQ: { 1700 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1701 .CaseLower("default", ADOF_Default) 1702 .CaseLower("json", ADOF_JSON) 1703 .Default(std::numeric_limits<unsigned>::max()); 1704 1705 if (Val != std::numeric_limits<unsigned>::max()) 1706 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1707 else { 1708 Diags.Report(diag::err_drv_invalid_value) 1709 << A->getAsString(Args) << A->getValue(); 1710 Opts.ASTDumpFormat = ADOF_Default; 1711 } 1712 LLVM_FALLTHROUGH; 1713 } 1714 case OPT_ast_dump: 1715 case OPT_ast_dump_all: 1716 case OPT_ast_dump_lookups: 1717 Opts.ProgramAction = frontend::ASTDump; break; 1718 case OPT_ast_print: 1719 Opts.ProgramAction = frontend::ASTPrint; break; 1720 case OPT_ast_view: 1721 Opts.ProgramAction = frontend::ASTView; break; 1722 case OPT_compiler_options_dump: 1723 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1724 case OPT_dump_raw_tokens: 1725 Opts.ProgramAction = frontend::DumpRawTokens; break; 1726 case OPT_dump_tokens: 1727 Opts.ProgramAction = frontend::DumpTokens; break; 1728 case OPT_S: 1729 Opts.ProgramAction = frontend::EmitAssembly; break; 1730 case OPT_emit_llvm_bc: 1731 Opts.ProgramAction = frontend::EmitBC; break; 1732 case OPT_emit_html: 1733 Opts.ProgramAction = frontend::EmitHTML; break; 1734 case OPT_emit_llvm: 1735 Opts.ProgramAction = frontend::EmitLLVM; break; 1736 case OPT_emit_llvm_only: 1737 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1738 case OPT_emit_codegen_only: 1739 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1740 case OPT_emit_obj: 1741 Opts.ProgramAction = frontend::EmitObj; break; 1742 case OPT_fixit_EQ: 1743 Opts.FixItSuffix = A->getValue(); 1744 LLVM_FALLTHROUGH; 1745 case OPT_fixit: 1746 Opts.ProgramAction = frontend::FixIt; break; 1747 case OPT_emit_module: 1748 Opts.ProgramAction = frontend::GenerateModule; break; 1749 case OPT_emit_module_interface: 1750 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1751 case OPT_emit_header_module: 1752 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1753 case OPT_emit_pch: 1754 Opts.ProgramAction = frontend::GeneratePCH; break; 1755 case OPT_emit_interface_stubs: { 1756 StringRef ArgStr = 1757 Args.hasArg(OPT_interface_stub_version_EQ) 1758 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1759 : "experimental-ifs-v2"; 1760 if (ArgStr == "experimental-yaml-elf-v1" || 1761 ArgStr == "experimental-ifs-v1" || 1762 ArgStr == "experimental-tapi-elf-v1") { 1763 std::string ErrorMessage = 1764 "Invalid interface stub format: " + ArgStr.str() + 1765 " is deprecated."; 1766 Diags.Report(diag::err_drv_invalid_value) 1767 << "Must specify a valid interface stub format type, ie: " 1768 "-interface-stub-version=experimental-ifs-v2" 1769 << ErrorMessage; 1770 } else if (!ArgStr.startswith("experimental-ifs-")) { 1771 std::string ErrorMessage = 1772 "Invalid interface stub format: " + ArgStr.str() + "."; 1773 Diags.Report(diag::err_drv_invalid_value) 1774 << "Must specify a valid interface stub format type, ie: " 1775 "-interface-stub-version=experimental-ifs-v2" 1776 << ErrorMessage; 1777 } else { 1778 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1779 } 1780 break; 1781 } 1782 case OPT_init_only: 1783 Opts.ProgramAction = frontend::InitOnly; break; 1784 case OPT_fsyntax_only: 1785 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1786 case OPT_module_file_info: 1787 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1788 case OPT_verify_pch: 1789 Opts.ProgramAction = frontend::VerifyPCH; break; 1790 case OPT_print_preamble: 1791 Opts.ProgramAction = frontend::PrintPreamble; break; 1792 case OPT_E: 1793 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1794 case OPT_templight_dump: 1795 Opts.ProgramAction = frontend::TemplightDump; break; 1796 case OPT_rewrite_macros: 1797 Opts.ProgramAction = frontend::RewriteMacros; break; 1798 case OPT_rewrite_objc: 1799 Opts.ProgramAction = frontend::RewriteObjC; break; 1800 case OPT_rewrite_test: 1801 Opts.ProgramAction = frontend::RewriteTest; break; 1802 case OPT_analyze: 1803 Opts.ProgramAction = frontend::RunAnalysis; break; 1804 case OPT_migrate: 1805 Opts.ProgramAction = frontend::MigrateSource; break; 1806 case OPT_Eonly: 1807 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1808 case OPT_print_dependency_directives_minimized_source: 1809 Opts.ProgramAction = 1810 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1811 break; 1812 } 1813 } 1814 1815 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1816 Opts.Plugins.emplace_back(A->getValue(0)); 1817 Opts.ProgramAction = frontend::PluginAction; 1818 Opts.ActionName = A->getValue(); 1819 } 1820 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1821 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1822 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1823 1824 for (const std::string &Arg : 1825 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1826 std::string BlockName; 1827 unsigned MajorVersion; 1828 unsigned MinorVersion; 1829 bool Hashed; 1830 std::string UserInfo; 1831 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1832 MinorVersion, Hashed, UserInfo)) { 1833 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1834 1835 continue; 1836 } 1837 1838 // Add the testing module file extension. 1839 Opts.ModuleFileExtensions.push_back( 1840 std::make_shared<TestModuleFileExtension>( 1841 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1842 } 1843 1844 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1845 Opts.CodeCompletionAt = 1846 ParsedSourceLocation::FromString(A->getValue()); 1847 if (Opts.CodeCompletionAt.FileName.empty()) 1848 Diags.Report(diag::err_drv_invalid_value) 1849 << A->getAsString(Args) << A->getValue(); 1850 } 1851 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1852 1853 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1854 Opts.Plugins = Args.getAllArgValues(OPT_load); 1855 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1856 Opts.ShowHelp = Args.hasArg(OPT_help); 1857 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1858 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1859 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1860 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1861 Opts.TimeTraceGranularity = getLastArgIntValue( 1862 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1863 Opts.ShowVersion = Args.hasArg(OPT_version); 1864 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1865 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1866 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1867 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1868 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1869 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1870 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1871 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1872 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1873 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1874 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1875 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1876 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1877 // Only the -fmodule-file=<file> form. 1878 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1879 StringRef Val = A->getValue(); 1880 if (Val.find('=') == StringRef::npos) 1881 Opts.ModuleFiles.push_back(std::string(Val)); 1882 } 1883 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1884 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1885 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1886 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1887 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 1888 1889 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1890 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1891 << "-emit-module"; 1892 1893 Opts.CodeCompleteOpts.IncludeMacros 1894 = Args.hasArg(OPT_code_completion_macros); 1895 Opts.CodeCompleteOpts.IncludeCodePatterns 1896 = Args.hasArg(OPT_code_completion_patterns); 1897 Opts.CodeCompleteOpts.IncludeGlobals 1898 = !Args.hasArg(OPT_no_code_completion_globals); 1899 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1900 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1901 Opts.CodeCompleteOpts.IncludeBriefComments 1902 = Args.hasArg(OPT_code_completion_brief_comments); 1903 Opts.CodeCompleteOpts.IncludeFixIts 1904 = Args.hasArg(OPT_code_completion_with_fixits); 1905 1906 Opts.OverrideRecordLayoutsFile = 1907 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1908 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1909 if (Args.hasArg(OPT_aux_target_cpu)) 1910 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1911 if (Args.hasArg(OPT_aux_target_feature)) 1912 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1913 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1914 1915 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1916 OPT_arcmt_modify, 1917 OPT_arcmt_migrate)) { 1918 switch (A->getOption().getID()) { 1919 default: 1920 llvm_unreachable("missed a case"); 1921 case OPT_arcmt_check: 1922 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1923 break; 1924 case OPT_arcmt_modify: 1925 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1926 break; 1927 case OPT_arcmt_migrate: 1928 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1929 break; 1930 } 1931 } 1932 Opts.MTMigrateDir = 1933 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1934 Opts.ARCMTMigrateReportOut = 1935 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1936 Opts.ARCMTMigrateEmitARCErrors 1937 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1938 1939 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1940 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1941 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1942 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1943 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1944 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1945 if (Args.hasArg(OPT_objcmt_migrate_property)) 1946 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1947 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1948 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1949 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1950 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1951 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1952 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1953 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1954 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1955 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1956 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1957 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1958 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1959 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1960 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1961 if (Args.hasArg(OPT_objcmt_atomic_property)) 1962 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1963 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1964 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1965 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1966 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1967 if (Args.hasArg(OPT_objcmt_migrate_all)) 1968 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1969 1970 Opts.ObjCMTWhiteListPath = 1971 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 1972 1973 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1974 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1975 Diags.Report(diag::err_drv_argument_not_allowed_with) 1976 << "ARC migration" << "ObjC migration"; 1977 } 1978 1979 InputKind DashX(Language::Unknown); 1980 if (const Arg *A = Args.getLastArg(OPT_x)) { 1981 StringRef XValue = A->getValue(); 1982 1983 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1984 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1985 bool Preprocessed = XValue.consume_back("-cpp-output"); 1986 bool ModuleMap = XValue.consume_back("-module-map"); 1987 IsHeaderFile = 1988 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1989 1990 // Principal languages. 1991 DashX = llvm::StringSwitch<InputKind>(XValue) 1992 .Case("c", Language::C) 1993 .Case("cl", Language::OpenCL) 1994 .Case("cuda", Language::CUDA) 1995 .Case("hip", Language::HIP) 1996 .Case("c++", Language::CXX) 1997 .Case("objective-c", Language::ObjC) 1998 .Case("objective-c++", Language::ObjCXX) 1999 .Case("renderscript", Language::RenderScript) 2000 .Default(Language::Unknown); 2001 2002 // "objc[++]-cpp-output" is an acceptable synonym for 2003 // "objective-c[++]-cpp-output". 2004 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2005 DashX = llvm::StringSwitch<InputKind>(XValue) 2006 .Case("objc", Language::ObjC) 2007 .Case("objc++", Language::ObjCXX) 2008 .Default(Language::Unknown); 2009 2010 // Some special cases cannot be combined with suffixes. 2011 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2012 DashX = llvm::StringSwitch<InputKind>(XValue) 2013 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2014 .Case("assembler-with-cpp", Language::Asm) 2015 .Cases("ast", "pcm", 2016 InputKind(Language::Unknown, InputKind::Precompiled)) 2017 .Case("ir", Language::LLVM_IR) 2018 .Default(Language::Unknown); 2019 2020 if (DashX.isUnknown()) 2021 Diags.Report(diag::err_drv_invalid_value) 2022 << A->getAsString(Args) << A->getValue(); 2023 2024 if (Preprocessed) 2025 DashX = DashX.getPreprocessed(); 2026 if (ModuleMap) 2027 DashX = DashX.withFormat(InputKind::ModuleMap); 2028 } 2029 2030 // '-' is the default input if none is given. 2031 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2032 Opts.Inputs.clear(); 2033 if (Inputs.empty()) 2034 Inputs.push_back("-"); 2035 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2036 InputKind IK = DashX; 2037 if (IK.isUnknown()) { 2038 IK = FrontendOptions::getInputKindForExtension( 2039 StringRef(Inputs[i]).rsplit('.').second); 2040 // FIXME: Warn on this? 2041 if (IK.isUnknown()) 2042 IK = Language::C; 2043 // FIXME: Remove this hack. 2044 if (i == 0) 2045 DashX = IK; 2046 } 2047 2048 bool IsSystem = false; 2049 2050 // The -emit-module action implicitly takes a module map. 2051 if (Opts.ProgramAction == frontend::GenerateModule && 2052 IK.getFormat() == InputKind::Source) { 2053 IK = IK.withFormat(InputKind::ModuleMap); 2054 IsSystem = Opts.IsSystemModule; 2055 } 2056 2057 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2058 } 2059 2060 return DashX; 2061 } 2062 2063 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2064 void *MainAddr) { 2065 std::string ClangExecutable = 2066 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2067 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2068 } 2069 2070 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2071 const std::string &WorkingDir) { 2072 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2073 Opts.Verbose = Args.hasArg(OPT_v); 2074 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2075 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2076 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2077 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2078 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2079 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2080 2081 // Canonicalize -fmodules-cache-path before storing it. 2082 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2083 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2084 if (WorkingDir.empty()) 2085 llvm::sys::fs::make_absolute(P); 2086 else 2087 llvm::sys::fs::make_absolute(WorkingDir, P); 2088 } 2089 llvm::sys::path::remove_dots(P); 2090 Opts.ModuleCachePath = std::string(P.str()); 2091 2092 Opts.ModuleUserBuildPath = 2093 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2094 // Only the -fmodule-file=<name>=<file> form. 2095 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2096 StringRef Val = A->getValue(); 2097 if (Val.find('=') != StringRef::npos){ 2098 auto Split = Val.split('='); 2099 Opts.PrebuiltModuleFiles.insert( 2100 {std::string(Split.first), std::string(Split.second)}); 2101 } 2102 } 2103 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2104 Opts.AddPrebuiltModulePath(A->getValue()); 2105 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2106 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2107 Opts.ModulesStrictContextHash = Args.hasArg(OPT_fmodules_strict_context_hash); 2108 Opts.ModulesValidateDiagnosticOptions = 2109 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2110 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2111 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2112 Opts.ModuleCachePruneInterval = 2113 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2114 Opts.ModuleCachePruneAfter = 2115 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2116 Opts.ModulesValidateOncePerBuildSession = 2117 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2118 Opts.BuildSessionTimestamp = 2119 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2120 Opts.ModulesValidateSystemHeaders = 2121 Args.hasArg(OPT_fmodules_validate_system_headers); 2122 Opts.ValidateASTInputFilesContent = 2123 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2124 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2125 Opts.ModuleFormat = A->getValue(); 2126 2127 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2128 StringRef MacroDef = A->getValue(); 2129 Opts.ModulesIgnoreMacros.insert( 2130 llvm::CachedHashString(MacroDef.split('=').first)); 2131 } 2132 2133 // Add -I..., -F..., and -index-header-map options in order. 2134 bool IsIndexHeaderMap = false; 2135 bool IsSysrootSpecified = 2136 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2137 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2138 if (A->getOption().matches(OPT_index_header_map)) { 2139 // -index-header-map applies to the next -I or -F. 2140 IsIndexHeaderMap = true; 2141 continue; 2142 } 2143 2144 frontend::IncludeDirGroup Group = 2145 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2146 2147 bool IsFramework = A->getOption().matches(OPT_F); 2148 std::string Path = A->getValue(); 2149 2150 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2151 SmallString<32> Buffer; 2152 llvm::sys::path::append(Buffer, Opts.Sysroot, 2153 llvm::StringRef(A->getValue()).substr(1)); 2154 Path = std::string(Buffer.str()); 2155 } 2156 2157 Opts.AddPath(Path, Group, IsFramework, 2158 /*IgnoreSysroot*/ true); 2159 IsIndexHeaderMap = false; 2160 } 2161 2162 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2163 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2164 for (const auto *A : 2165 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2166 if (A->getOption().matches(OPT_iprefix)) 2167 Prefix = A->getValue(); 2168 else if (A->getOption().matches(OPT_iwithprefix)) 2169 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2170 else 2171 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2172 } 2173 2174 for (const auto *A : Args.filtered(OPT_idirafter)) 2175 Opts.AddPath(A->getValue(), frontend::After, false, true); 2176 for (const auto *A : Args.filtered(OPT_iquote)) 2177 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2178 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2179 Opts.AddPath(A->getValue(), frontend::System, false, 2180 !A->getOption().matches(OPT_iwithsysroot)); 2181 for (const auto *A : Args.filtered(OPT_iframework)) 2182 Opts.AddPath(A->getValue(), frontend::System, true, true); 2183 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2184 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2185 /*IgnoreSysRoot=*/false); 2186 2187 // Add the paths for the various language specific isystem flags. 2188 for (const auto *A : Args.filtered(OPT_c_isystem)) 2189 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2190 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2191 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2192 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2193 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2194 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2195 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2196 2197 // Add the internal paths from a driver that detects standard include paths. 2198 for (const auto *A : 2199 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2200 frontend::IncludeDirGroup Group = frontend::System; 2201 if (A->getOption().matches(OPT_internal_externc_isystem)) 2202 Group = frontend::ExternCSystem; 2203 Opts.AddPath(A->getValue(), Group, false, true); 2204 } 2205 2206 // Add the path prefixes which are implicitly treated as being system headers. 2207 for (const auto *A : 2208 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2209 Opts.AddSystemHeaderPrefix( 2210 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2211 2212 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2213 Opts.AddVFSOverlayFile(A->getValue()); 2214 } 2215 2216 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2217 const llvm::Triple &T, 2218 PreprocessorOptions &PPOpts, 2219 LangStandard::Kind LangStd) { 2220 // Set some properties which depend solely on the input kind; it would be nice 2221 // to move these to the language standard, and have the driver resolve the 2222 // input kind + language standard. 2223 // 2224 // FIXME: Perhaps a better model would be for a single source file to have 2225 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2226 // simultaneously active? 2227 if (IK.getLanguage() == Language::Asm) { 2228 Opts.AsmPreprocessor = 1; 2229 } else if (IK.isObjectiveC()) { 2230 Opts.ObjC = 1; 2231 } 2232 2233 if (LangStd == LangStandard::lang_unspecified) { 2234 // Based on the base language, pick one. 2235 switch (IK.getLanguage()) { 2236 case Language::Unknown: 2237 case Language::LLVM_IR: 2238 llvm_unreachable("Invalid input kind!"); 2239 case Language::OpenCL: 2240 LangStd = LangStandard::lang_opencl10; 2241 break; 2242 case Language::CUDA: 2243 LangStd = LangStandard::lang_cuda; 2244 break; 2245 case Language::Asm: 2246 case Language::C: 2247 #if defined(CLANG_DEFAULT_STD_C) 2248 LangStd = CLANG_DEFAULT_STD_C; 2249 #else 2250 // The PS4 uses C99 as the default C standard. 2251 if (T.isPS4()) 2252 LangStd = LangStandard::lang_gnu99; 2253 else 2254 LangStd = LangStandard::lang_gnu17; 2255 #endif 2256 break; 2257 case Language::ObjC: 2258 #if defined(CLANG_DEFAULT_STD_C) 2259 LangStd = CLANG_DEFAULT_STD_C; 2260 #else 2261 LangStd = LangStandard::lang_gnu11; 2262 #endif 2263 break; 2264 case Language::CXX: 2265 case Language::ObjCXX: 2266 #if defined(CLANG_DEFAULT_STD_CXX) 2267 LangStd = CLANG_DEFAULT_STD_CXX; 2268 #else 2269 LangStd = LangStandard::lang_gnucxx14; 2270 #endif 2271 break; 2272 case Language::RenderScript: 2273 LangStd = LangStandard::lang_c99; 2274 break; 2275 case Language::HIP: 2276 LangStd = LangStandard::lang_hip; 2277 break; 2278 } 2279 } 2280 2281 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2282 Opts.LineComment = Std.hasLineComments(); 2283 Opts.C99 = Std.isC99(); 2284 Opts.C11 = Std.isC11(); 2285 Opts.C17 = Std.isC17(); 2286 Opts.C2x = Std.isC2x(); 2287 Opts.CPlusPlus = Std.isCPlusPlus(); 2288 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2289 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2290 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2291 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 2292 Opts.Digraphs = Std.hasDigraphs(); 2293 Opts.GNUMode = Std.isGNUMode(); 2294 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2295 Opts.GNUCVersion = 0; 2296 Opts.HexFloats = Std.hasHexFloats(); 2297 Opts.ImplicitInt = Std.hasImplicitInt(); 2298 2299 // Set OpenCL Version. 2300 Opts.OpenCL = Std.isOpenCL(); 2301 if (LangStd == LangStandard::lang_opencl10) 2302 Opts.OpenCLVersion = 100; 2303 else if (LangStd == LangStandard::lang_opencl11) 2304 Opts.OpenCLVersion = 110; 2305 else if (LangStd == LangStandard::lang_opencl12) 2306 Opts.OpenCLVersion = 120; 2307 else if (LangStd == LangStandard::lang_opencl20) 2308 Opts.OpenCLVersion = 200; 2309 else if (LangStd == LangStandard::lang_openclcpp) 2310 Opts.OpenCLCPlusPlusVersion = 100; 2311 2312 // OpenCL has some additional defaults. 2313 if (Opts.OpenCL) { 2314 Opts.AltiVec = 0; 2315 Opts.ZVector = 0; 2316 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2317 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2318 Opts.NativeHalfType = 1; 2319 Opts.NativeHalfArgsAndReturns = 1; 2320 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2321 2322 // Include default header file for OpenCL. 2323 if (Opts.IncludeDefaultHeader) { 2324 if (Opts.DeclareOpenCLBuiltins) { 2325 // Only include base header file for builtin types and constants. 2326 PPOpts.Includes.push_back("opencl-c-base.h"); 2327 } else { 2328 PPOpts.Includes.push_back("opencl-c.h"); 2329 } 2330 } 2331 } 2332 2333 Opts.HIP = IK.getLanguage() == Language::HIP; 2334 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2335 if (Opts.CUDA) 2336 // Set default FP_CONTRACT to FAST. 2337 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2338 2339 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2340 if (Opts.RenderScript) { 2341 Opts.NativeHalfType = 1; 2342 Opts.NativeHalfArgsAndReturns = 1; 2343 } 2344 2345 // OpenCL and C++ both have bool, true, false keywords. 2346 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2347 2348 // OpenCL has half keyword 2349 Opts.Half = Opts.OpenCL; 2350 2351 // C++ has wchar_t keyword. 2352 Opts.WChar = Opts.CPlusPlus; 2353 2354 Opts.GNUKeywords = Opts.GNUMode; 2355 Opts.CXXOperatorNames = Opts.CPlusPlus; 2356 2357 Opts.AlignedAllocation = Opts.CPlusPlus17; 2358 2359 Opts.DollarIdents = !Opts.AsmPreprocessor; 2360 2361 // Enable [[]] attributes in C++11 and C2x by default. 2362 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2363 } 2364 2365 /// Attempt to parse a visibility value out of the given argument. 2366 static Visibility parseVisibility(Arg *arg, ArgList &args, 2367 DiagnosticsEngine &diags) { 2368 StringRef value = arg->getValue(); 2369 if (value == "default") { 2370 return DefaultVisibility; 2371 } else if (value == "hidden" || value == "internal") { 2372 return HiddenVisibility; 2373 } else if (value == "protected") { 2374 // FIXME: diagnose if target does not support protected visibility 2375 return ProtectedVisibility; 2376 } 2377 2378 diags.Report(diag::err_drv_invalid_value) 2379 << arg->getAsString(args) << value; 2380 return DefaultVisibility; 2381 } 2382 2383 /// Check if input file kind and language standard are compatible. 2384 static bool IsInputCompatibleWithStandard(InputKind IK, 2385 const LangStandard &S) { 2386 switch (IK.getLanguage()) { 2387 case Language::Unknown: 2388 case Language::LLVM_IR: 2389 llvm_unreachable("should not parse language flags for this input"); 2390 2391 case Language::C: 2392 case Language::ObjC: 2393 case Language::RenderScript: 2394 return S.getLanguage() == Language::C; 2395 2396 case Language::OpenCL: 2397 return S.getLanguage() == Language::OpenCL; 2398 2399 case Language::CXX: 2400 case Language::ObjCXX: 2401 return S.getLanguage() == Language::CXX; 2402 2403 case Language::CUDA: 2404 // FIXME: What -std= values should be permitted for CUDA compilations? 2405 return S.getLanguage() == Language::CUDA || 2406 S.getLanguage() == Language::CXX; 2407 2408 case Language::HIP: 2409 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2410 2411 case Language::Asm: 2412 // Accept (and ignore) all -std= values. 2413 // FIXME: The -std= value is not ignored; it affects the tokenization 2414 // and preprocessing rules if we're preprocessing this asm input. 2415 return true; 2416 } 2417 2418 llvm_unreachable("unexpected input language"); 2419 } 2420 2421 /// Get language name for given input kind. 2422 static const StringRef GetInputKindName(InputKind IK) { 2423 switch (IK.getLanguage()) { 2424 case Language::C: 2425 return "C"; 2426 case Language::ObjC: 2427 return "Objective-C"; 2428 case Language::CXX: 2429 return "C++"; 2430 case Language::ObjCXX: 2431 return "Objective-C++"; 2432 case Language::OpenCL: 2433 return "OpenCL"; 2434 case Language::CUDA: 2435 return "CUDA"; 2436 case Language::RenderScript: 2437 return "RenderScript"; 2438 case Language::HIP: 2439 return "HIP"; 2440 2441 case Language::Asm: 2442 return "Asm"; 2443 case Language::LLVM_IR: 2444 return "LLVM IR"; 2445 2446 case Language::Unknown: 2447 break; 2448 } 2449 llvm_unreachable("unknown input language"); 2450 } 2451 2452 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2453 const TargetOptions &TargetOpts, 2454 PreprocessorOptions &PPOpts, 2455 DiagnosticsEngine &Diags) { 2456 // FIXME: Cleanup per-file based stuff. 2457 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2458 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2459 LangStd = LangStandard::getLangKind(A->getValue()); 2460 if (LangStd == LangStandard::lang_unspecified) { 2461 Diags.Report(diag::err_drv_invalid_value) 2462 << A->getAsString(Args) << A->getValue(); 2463 // Report supported standards with short description. 2464 for (unsigned KindValue = 0; 2465 KindValue != LangStandard::lang_unspecified; 2466 ++KindValue) { 2467 const LangStandard &Std = LangStandard::getLangStandardForKind( 2468 static_cast<LangStandard::Kind>(KindValue)); 2469 if (IsInputCompatibleWithStandard(IK, Std)) { 2470 auto Diag = Diags.Report(diag::note_drv_use_standard); 2471 Diag << Std.getName() << Std.getDescription(); 2472 unsigned NumAliases = 0; 2473 #define LANGSTANDARD(id, name, lang, desc, features) 2474 #define LANGSTANDARD_ALIAS(id, alias) \ 2475 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2476 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2477 #include "clang/Basic/LangStandards.def" 2478 Diag << NumAliases; 2479 #define LANGSTANDARD(id, name, lang, desc, features) 2480 #define LANGSTANDARD_ALIAS(id, alias) \ 2481 if (KindValue == LangStandard::lang_##id) Diag << alias; 2482 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2483 #include "clang/Basic/LangStandards.def" 2484 } 2485 } 2486 } else { 2487 // Valid standard, check to make sure language and standard are 2488 // compatible. 2489 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2490 if (!IsInputCompatibleWithStandard(IK, Std)) { 2491 Diags.Report(diag::err_drv_argument_not_allowed_with) 2492 << A->getAsString(Args) << GetInputKindName(IK); 2493 } 2494 } 2495 } 2496 2497 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2498 Opts.DllExportInlines = false; 2499 2500 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2501 StringRef Name = A->getValue(); 2502 if (Name == "full" || Name == "branch") { 2503 Opts.CFProtectionBranch = 1; 2504 } 2505 } 2506 // -cl-std only applies for OpenCL language standards. 2507 // Override the -std option in this case. 2508 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2509 LangStandard::Kind OpenCLLangStd 2510 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2511 .Cases("cl", "CL", LangStandard::lang_opencl10) 2512 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2513 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2514 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2515 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2516 .Default(LangStandard::lang_unspecified); 2517 2518 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2519 Diags.Report(diag::err_drv_invalid_value) 2520 << A->getAsString(Args) << A->getValue(); 2521 } 2522 else 2523 LangStd = OpenCLLangStd; 2524 } 2525 2526 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2527 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2528 if (Opts.SYCL) { 2529 // -sycl-std applies to any SYCL source, not only those containing kernels, 2530 // but also those using the SYCL API 2531 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2532 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2533 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2534 .Default(0U); 2535 2536 if (Opts.SYCLVersion == 0U) { 2537 // User has passed an invalid value to the flag, this is an error 2538 Diags.Report(diag::err_drv_invalid_value) 2539 << A->getAsString(Args) << A->getValue(); 2540 } 2541 } 2542 } 2543 2544 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2545 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2546 2547 llvm::Triple T(TargetOpts.Triple); 2548 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2549 2550 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2551 // This option should be deprecated for CL > 1.0 because 2552 // this option was added for compatibility with OpenCL 1.0. 2553 if (Args.getLastArg(OPT_cl_strict_aliasing) 2554 && Opts.OpenCLVersion > 100) { 2555 Diags.Report(diag::warn_option_invalid_ocl_version) 2556 << Opts.getOpenCLVersionTuple().getAsString() 2557 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2558 } 2559 2560 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2561 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2562 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2563 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2564 // name, as it doesn't seem a useful distinction. 2565 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2566 Opts.GNUKeywords); 2567 2568 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2569 2570 if (Args.hasArg(OPT_fno_operator_names)) 2571 Opts.CXXOperatorNames = 0; 2572 2573 if (Args.hasArg(OPT_fcuda_is_device)) 2574 Opts.CUDAIsDevice = 1; 2575 2576 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2577 Opts.CUDAAllowVariadicFunctions = 1; 2578 2579 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2580 Opts.CUDAHostDeviceConstexpr = 0; 2581 2582 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2583 Opts.CUDADeviceApproxTranscendentals = 1; 2584 2585 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2586 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2587 if (Opts.HIP) 2588 Opts.GPUAllowDeviceInit = 1; 2589 else 2590 Diags.Report(diag::warn_ignored_hip_only_option) 2591 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2592 } 2593 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2594 if (Opts.HIP) 2595 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2596 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2597 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2598 Diags.Report(diag::warn_ignored_hip_only_option) 2599 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2600 2601 if (Opts.ObjC) { 2602 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2603 StringRef value = arg->getValue(); 2604 if (Opts.ObjCRuntime.tryParse(value)) 2605 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2606 } 2607 2608 if (Args.hasArg(OPT_fobjc_gc_only)) 2609 Opts.setGC(LangOptions::GCOnly); 2610 else if (Args.hasArg(OPT_fobjc_gc)) 2611 Opts.setGC(LangOptions::HybridGC); 2612 else if (Args.hasArg(OPT_fobjc_arc)) { 2613 Opts.ObjCAutoRefCount = 1; 2614 if (!Opts.ObjCRuntime.allowsARC()) 2615 Diags.Report(diag::err_arc_unsupported_on_runtime); 2616 } 2617 2618 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2619 // whether the feature is actually enabled. This is predominantly 2620 // determined by -fobjc-runtime, but we allow it to be overridden 2621 // from the command line for testing purposes. 2622 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2623 Opts.ObjCWeakRuntime = 1; 2624 else 2625 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2626 2627 // ObjCWeak determines whether __weak is actually enabled. 2628 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2629 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2630 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2631 assert(!Opts.ObjCWeak); 2632 } else if (Opts.getGC() != LangOptions::NonGC) { 2633 Diags.Report(diag::err_objc_weak_with_gc); 2634 } else if (!Opts.ObjCWeakRuntime) { 2635 Diags.Report(diag::err_objc_weak_unsupported); 2636 } else { 2637 Opts.ObjCWeak = 1; 2638 } 2639 } else if (Opts.ObjCAutoRefCount) { 2640 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2641 } 2642 2643 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2644 Opts.ObjCInferRelatedResultType = 0; 2645 2646 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2647 Opts.ObjCSubscriptingLegacyRuntime = 2648 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2649 } 2650 2651 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2652 // Check that the version has 1 to 3 components and the minor and patch 2653 // versions fit in two decimal digits. 2654 VersionTuple GNUCVer; 2655 bool Invalid = GNUCVer.tryParse(A->getValue()); 2656 unsigned Major = GNUCVer.getMajor(); 2657 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2658 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2659 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2660 Diags.Report(diag::err_drv_invalid_value) 2661 << A->getAsString(Args) << A->getValue(); 2662 } 2663 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2664 } 2665 2666 if (Args.hasArg(OPT_fgnu89_inline)) { 2667 if (Opts.CPlusPlus) 2668 Diags.Report(diag::err_drv_argument_not_allowed_with) 2669 << "-fgnu89-inline" << GetInputKindName(IK); 2670 else 2671 Opts.GNUInline = 1; 2672 } 2673 2674 if (Args.hasArg(OPT_fapple_kext)) { 2675 if (!Opts.CPlusPlus) 2676 Diags.Report(diag::warn_c_kext); 2677 else 2678 Opts.AppleKext = 1; 2679 } 2680 2681 if (Args.hasArg(OPT_print_ivar_layout)) 2682 Opts.ObjCGCBitmapPrint = 1; 2683 2684 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2685 Opts.NoConstantCFStrings = 1; 2686 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2687 Opts.CFRuntime = 2688 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2689 .Cases("unspecified", "standalone", "objc", 2690 LangOptions::CoreFoundationABI::ObjectiveC) 2691 .Cases("swift", "swift-5.0", 2692 LangOptions::CoreFoundationABI::Swift5_0) 2693 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2694 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2695 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2696 2697 if (Args.hasArg(OPT_fzvector)) 2698 Opts.ZVector = 1; 2699 2700 if (Args.hasArg(OPT_pthread)) 2701 Opts.POSIXThreads = 1; 2702 2703 // The value-visibility mode defaults to "default". 2704 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2705 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2706 } else { 2707 Opts.setValueVisibilityMode(DefaultVisibility); 2708 } 2709 2710 // The type-visibility mode defaults to the value-visibility mode. 2711 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2712 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2713 } else { 2714 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2715 } 2716 2717 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2718 Opts.InlineVisibilityHidden = 1; 2719 2720 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2721 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2722 2723 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2724 Opts.SetVisibilityForExternDecls = 1; 2725 2726 if (Args.hasArg(OPT_ftrapv)) { 2727 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2728 // Set the handler, if one is specified. 2729 Opts.OverflowHandler = 2730 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2731 } 2732 else if (Args.hasArg(OPT_fwrapv)) 2733 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2734 2735 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2736 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2737 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2738 Opts.MSCompatibilityVersion = 0; 2739 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2740 VersionTuple VT; 2741 if (VT.tryParse(A->getValue())) 2742 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2743 << A->getValue(); 2744 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2745 VT.getMinor().getValueOr(0) * 100000 + 2746 VT.getSubminor().getValueOr(0); 2747 } 2748 2749 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2750 // is specified, or -std is set to a conforming mode. 2751 // Trigraphs are disabled by default in c++1z onwards. 2752 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2753 Opts.Trigraphs = 2754 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2755 2756 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2757 OPT_fno_dollars_in_identifiers, 2758 Opts.DollarIdents); 2759 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2760 Opts.setVtorDispMode( 2761 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2762 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2763 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2764 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2765 Opts.ConstStrings); 2766 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2767 using LaxKind = LangOptions::LaxVectorConversionKind; 2768 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2769 .Case("none", LaxKind::None) 2770 .Case("integer", LaxKind::Integer) 2771 .Case("all", LaxKind::All) 2772 .Default(llvm::None)) 2773 Opts.setLaxVectorConversions(*Kind); 2774 else 2775 Diags.Report(diag::err_drv_invalid_value) 2776 << A->getAsString(Args) << A->getValue(); 2777 } 2778 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2779 Opts.ThreadsafeStatics = 0; 2780 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2781 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2782 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2783 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2784 2785 // -ffixed-point 2786 Opts.FixedPoint = 2787 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2788 !Opts.CPlusPlus; 2789 Opts.PaddingOnUnsignedFixedPoint = 2790 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2791 OPT_fno_padding_on_unsigned_fixed_point, 2792 /*Default=*/false) && 2793 Opts.FixedPoint; 2794 2795 // Handle exception personalities 2796 Arg *A = Args.getLastArg( 2797 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2798 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2799 if (A) { 2800 const Option &Opt = A->getOption(); 2801 llvm::Triple T(TargetOpts.Triple); 2802 if (T.isWindowsMSVCEnvironment()) 2803 Diags.Report(diag::err_fe_invalid_exception_model) 2804 << Opt.getName() << T.str(); 2805 2806 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2807 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2808 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2809 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2810 } 2811 2812 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2813 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2814 2815 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2816 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2817 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2818 && Opts.OpenCLVersion == 200); 2819 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2820 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2821 2822 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2823 Args.hasArg(OPT_fconvergent_functions); 2824 2825 Opts.DoubleSquareBracketAttributes = 2826 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2827 OPT_fno_double_square_bracket_attributes, 2828 Opts.DoubleSquareBracketAttributes); 2829 2830 Opts.CPlusPlusModules = Opts.CPlusPlus20; 2831 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2832 Opts.Modules = 2833 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2834 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2835 Opts.ModulesDeclUse = 2836 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2837 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2838 // enter a different module (eg, when building a header unit). 2839 Opts.ModulesLocalVisibility = 2840 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2841 Opts.CPlusPlusModules; 2842 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2843 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2844 Opts.ModulesSearchAll = Opts.Modules && 2845 !Args.hasArg(OPT_fno_modules_search_all) && 2846 Args.hasArg(OPT_fmodules_search_all); 2847 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2848 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2849 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2850 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2851 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 2852 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2853 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2854 .Case("char", 1) 2855 .Case("short", 2) 2856 .Case("int", 4) 2857 .Default(0); 2858 if (Opts.WCharSize == 0) 2859 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2860 } 2861 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2862 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2863 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2864 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2865 if (!Opts.NoBuiltin) 2866 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2867 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2868 Opts.RelaxedTemplateTemplateArgs = 2869 Args.hasArg(OPT_frelaxed_template_template_args); 2870 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2871 Opts.AlignedAllocation = 2872 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2873 Opts.AlignedAllocation); 2874 Opts.AlignedAllocationUnavailable = 2875 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2876 Opts.NewAlignOverride = 2877 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2878 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2879 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2880 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2881 << A->getValue(); 2882 Opts.NewAlignOverride = 0; 2883 } 2884 Opts.ConceptSatisfactionCaching = 2885 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2886 if (Args.hasArg(OPT_fconcepts_ts)) 2887 Diags.Report(diag::warn_fe_concepts_ts_flag); 2888 Opts.RecoveryAST = 2889 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, false); 2890 Opts.RecoveryASTType = 2891 + Args.hasFlag(OPT_frecovery_ast_type, OPT_fno_recovery_ast_type, false); 2892 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2893 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2894 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2895 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2896 Opts.InstantiationDepth = 2897 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2898 Opts.ArrowDepth = 2899 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2900 Opts.ConstexprCallDepth = 2901 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2902 Opts.ConstexprStepLimit = 2903 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2904 Opts.EnableNewConstInterp = 2905 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2906 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2907 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2908 Opts.NumLargeByValueCopy = 2909 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2910 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2911 Opts.ObjCConstantStringClass = 2912 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2913 Opts.ObjCDefaultSynthProperties = 2914 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2915 Opts.EncodeExtendedBlockSig = 2916 Args.hasArg(OPT_fencode_extended_block_signature); 2917 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2918 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2919 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2920 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2921 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 2922 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2923 ? 128 2924 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2925 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2926 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2927 Opts.ROPI = Args.hasArg(OPT_fropi); 2928 Opts.RWPI = Args.hasArg(OPT_frwpi); 2929 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2930 Opts.Static = Args.hasArg(OPT_static_define); 2931 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2932 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2933 || Args.hasArg(OPT_fdump_record_layouts); 2934 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2935 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2936 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2937 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2938 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2939 if (Opts.FastRelaxedMath) 2940 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2941 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2942 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2943 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2944 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2945 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2946 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2947 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2948 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 2949 Opts.CurrentModule = Opts.ModuleName; 2950 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2951 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2952 llvm::sort(Opts.ModuleFeatures); 2953 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2954 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2955 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2956 // is enabled. 2957 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2958 | Opts.NativeHalfArgsAndReturns; 2959 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2960 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2961 2962 // __declspec is enabled by default for the PS4 by the driver, and also 2963 // enabled for Microsoft Extensions or Borland Extensions, here. 2964 // 2965 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2966 // CUDA extension. However, it is required for supporting 2967 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2968 // been rewritten in terms of something more generic, remove the Opts.CUDA 2969 // term here. 2970 Opts.DeclSpecKeyword = 2971 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2972 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2973 2974 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2975 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2976 .Case("target", LangOptions::ASMM_Target) 2977 .Case("no", LangOptions::ASMM_Off) 2978 .Case("yes", LangOptions::ASMM_On) 2979 .Default(255)) { 2980 default: 2981 Diags.Report(diag::err_drv_invalid_value) 2982 << "-faddress-space-map-mangling=" << A->getValue(); 2983 break; 2984 case LangOptions::ASMM_Target: 2985 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2986 break; 2987 case LangOptions::ASMM_On: 2988 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2989 break; 2990 case LangOptions::ASMM_Off: 2991 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2992 break; 2993 } 2994 } 2995 2996 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2997 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2998 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2999 A->getValue()) 3000 .Case("single", 3001 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3002 .Case("multiple", 3003 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3004 .Case("virtual", 3005 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3006 .Default(LangOptions::PPTMK_BestCase); 3007 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3008 Diags.Report(diag::err_drv_invalid_value) 3009 << "-fms-memptr-rep=" << A->getValue(); 3010 3011 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3012 } 3013 3014 // Check for MS default calling conventions being specified. 3015 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3016 LangOptions::DefaultCallingConvention DefaultCC = 3017 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3018 .Case("cdecl", LangOptions::DCC_CDecl) 3019 .Case("fastcall", LangOptions::DCC_FastCall) 3020 .Case("stdcall", LangOptions::DCC_StdCall) 3021 .Case("vectorcall", LangOptions::DCC_VectorCall) 3022 .Case("regcall", LangOptions::DCC_RegCall) 3023 .Default(LangOptions::DCC_None); 3024 if (DefaultCC == LangOptions::DCC_None) 3025 Diags.Report(diag::err_drv_invalid_value) 3026 << "-fdefault-calling-conv=" << A->getValue(); 3027 3028 llvm::Triple T(TargetOpts.Triple); 3029 llvm::Triple::ArchType Arch = T.getArch(); 3030 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3031 DefaultCC == LangOptions::DCC_StdCall) && 3032 Arch != llvm::Triple::x86; 3033 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3034 DefaultCC == LangOptions::DCC_RegCall) && 3035 !T.isX86(); 3036 if (emitError) 3037 Diags.Report(diag::err_drv_argument_not_allowed_with) 3038 << A->getSpelling() << T.getTriple(); 3039 else 3040 Opts.setDefaultCallingConv(DefaultCC); 3041 } 3042 3043 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3044 // An explicit -fno-semantic-interposition infers dso_local. 3045 Opts.ExplicitNoSemanticInterposition = 3046 Args.hasArg(OPT_fno_semantic_interposition); 3047 3048 // -mrtd option 3049 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3050 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3051 Diags.Report(diag::err_drv_argument_not_allowed_with) 3052 << A->getSpelling() << "-fdefault-calling-conv"; 3053 else { 3054 llvm::Triple T(TargetOpts.Triple); 3055 if (T.getArch() != llvm::Triple::x86) 3056 Diags.Report(diag::err_drv_argument_not_allowed_with) 3057 << A->getSpelling() << T.getTriple(); 3058 else 3059 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3060 } 3061 } 3062 3063 // Check if -fopenmp is specified and set default version to 4.5. 3064 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 45 : 0; 3065 // Check if -fopenmp-simd is specified. 3066 bool IsSimdSpecified = 3067 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3068 /*Default=*/false); 3069 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3070 Opts.OpenMPUseTLS = 3071 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3072 Opts.OpenMPIsDevice = 3073 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3074 Opts.OpenMPIRBuilder = 3075 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3076 bool IsTargetSpecified = 3077 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3078 3079 if (Opts.OpenMP || Opts.OpenMPSimd) { 3080 if (int Version = getLastArgIntValue( 3081 Args, OPT_fopenmp_version_EQ, 3082 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 3083 Opts.OpenMP = Version; 3084 else if (IsSimdSpecified || IsTargetSpecified) 3085 Opts.OpenMP = 45; 3086 // Provide diagnostic when a given target is not expected to be an OpenMP 3087 // device or host. 3088 if (!Opts.OpenMPIsDevice) { 3089 switch (T.getArch()) { 3090 default: 3091 break; 3092 // Add unsupported host targets here: 3093 case llvm::Triple::nvptx: 3094 case llvm::Triple::nvptx64: 3095 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3096 << TargetOpts.Triple; 3097 break; 3098 } 3099 } 3100 } 3101 3102 // Set the flag to prevent the implementation from emitting device exception 3103 // handling code for those requiring so. 3104 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3105 Opts.OpenCLCPlusPlus) { 3106 Opts.Exceptions = 0; 3107 Opts.CXXExceptions = 0; 3108 } 3109 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3110 Opts.OpenMPCUDANumSMs = 3111 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3112 Opts.OpenMPCUDANumSMs, Diags); 3113 Opts.OpenMPCUDABlocksPerSM = 3114 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3115 Opts.OpenMPCUDABlocksPerSM, Diags); 3116 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3117 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3118 Opts.OpenMPCUDAReductionBufNum, Diags); 3119 } 3120 3121 // Prevent auto-widening the representation of loop counters during an 3122 // OpenMP collapse clause. 3123 Opts.OpenMPOptimisticCollapse = 3124 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3125 3126 // Get the OpenMP target triples if any. 3127 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3128 3129 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3130 llvm::Triple TT(A->getValue(i)); 3131 3132 if (TT.getArch() == llvm::Triple::UnknownArch || 3133 !(TT.getArch() == llvm::Triple::aarch64 || 3134 TT.getArch() == llvm::Triple::ppc || 3135 TT.getArch() == llvm::Triple::ppc64 || 3136 TT.getArch() == llvm::Triple::ppc64le || 3137 TT.getArch() == llvm::Triple::nvptx || 3138 TT.getArch() == llvm::Triple::nvptx64 || 3139 TT.getArch() == llvm::Triple::amdgcn || 3140 TT.getArch() == llvm::Triple::x86 || 3141 TT.getArch() == llvm::Triple::x86_64)) 3142 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3143 else 3144 Opts.OMPTargetTriples.push_back(TT); 3145 } 3146 } 3147 3148 // Get OpenMP host file path if any and report if a non existent file is 3149 // found 3150 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3151 Opts.OMPHostIRFile = A->getValue(); 3152 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3153 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3154 << Opts.OMPHostIRFile; 3155 } 3156 3157 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3158 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3159 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3160 3161 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3162 Opts.OpenMPCUDAForceFullRuntime = 3163 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3164 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3165 3166 // Record whether the __DEPRECATED define was requested. 3167 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3168 OPT_fno_deprecated_macro, 3169 Opts.Deprecated); 3170 3171 // FIXME: Eliminate this dependency. 3172 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3173 OptSize = getOptimizationLevelSize(Args); 3174 Opts.Optimize = Opt != 0; 3175 Opts.OptimizeSize = OptSize != 0; 3176 3177 // This is the __NO_INLINE__ define, which just depends on things like the 3178 // optimization level and -fno-inline, not actually whether the backend has 3179 // inlining enabled. 3180 Opts.NoInlineDefine = !Opts.Optimize; 3181 if (Arg *InlineArg = Args.getLastArg( 3182 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3183 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3184 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3185 Opts.NoInlineDefine = true; 3186 3187 Opts.FastMath = 3188 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_fast_relaxed_math); 3189 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3190 Args.hasArg(OPT_ffast_math) || 3191 Args.hasArg(OPT_cl_finite_math_only) || 3192 Args.hasArg(OPT_cl_fast_relaxed_math); 3193 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3194 Args.hasArg(OPT_ffast_math) || 3195 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3196 Args.hasArg(OPT_cl_fast_relaxed_math); 3197 Opts.AllowFPReassoc = Args.hasArg(OPT_mreassociate) || 3198 Args.hasArg(OPT_menable_unsafe_fp_math) || 3199 Args.hasArg(OPT_ffast_math) || 3200 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3201 Args.hasArg(OPT_cl_fast_relaxed_math); 3202 Opts.NoHonorNaNs = 3203 Args.hasArg(OPT_menable_no_nans) || Args.hasArg(OPT_ffinite_math_only) || 3204 Args.hasArg(OPT_ffast_math) || Args.hasArg(OPT_cl_finite_math_only) || 3205 Args.hasArg(OPT_cl_fast_relaxed_math); 3206 Opts.NoHonorInfs = Args.hasArg(OPT_menable_no_infinities) || 3207 Args.hasArg(OPT_ffinite_math_only) || 3208 Args.hasArg(OPT_ffast_math) || 3209 Args.hasArg(OPT_cl_finite_math_only) || 3210 Args.hasArg(OPT_cl_fast_relaxed_math); 3211 Opts.NoSignedZero = Args.hasArg(OPT_fno_signed_zeros) || 3212 Args.hasArg(OPT_menable_unsafe_fp_math) || 3213 Args.hasArg(OPT_ffast_math) || 3214 Args.hasArg(OPT_cl_no_signed_zeros) || 3215 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3216 Args.hasArg(OPT_cl_fast_relaxed_math); 3217 Opts.AllowRecip = Args.hasArg(OPT_freciprocal_math) || 3218 Args.hasArg(OPT_menable_unsafe_fp_math) || 3219 Args.hasArg(OPT_ffast_math) || 3220 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3221 Args.hasArg(OPT_cl_fast_relaxed_math); 3222 // Currently there's no clang option to enable this individually 3223 Opts.ApproxFunc = Args.hasArg(OPT_menable_unsafe_fp_math) || 3224 Args.hasArg(OPT_ffast_math) || 3225 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3226 Args.hasArg(OPT_cl_fast_relaxed_math); 3227 3228 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3229 StringRef Val = A->getValue(); 3230 if (Val == "fast") 3231 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3232 else if (Val == "on") 3233 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3234 else if (Val == "off") 3235 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3236 else 3237 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3238 } 3239 3240 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3241 if (Args.hasArg(OPT_frounding_math)) { 3242 FPRM = llvm::RoundingMode::Dynamic; 3243 } 3244 Opts.setFPRoundingMode(FPRM); 3245 3246 if (Args.hasArg(OPT_ftrapping_math)) { 3247 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3248 } 3249 3250 if (Args.hasArg(OPT_fno_trapping_math)) { 3251 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3252 } 3253 3254 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3255 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3256 StringRef Val = A->getValue(); 3257 if (Val.equals("ignore")) 3258 FPEB = LangOptions::FPE_Ignore; 3259 else if (Val.equals("maytrap")) 3260 FPEB = LangOptions::FPE_MayTrap; 3261 else if (Val.equals("strict")) 3262 FPEB = LangOptions::FPE_Strict; 3263 else 3264 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3265 } 3266 Opts.setFPExceptionMode(FPEB); 3267 3268 Opts.RetainCommentsFromSystemHeaders = 3269 Args.hasArg(OPT_fretain_comments_from_system_headers); 3270 3271 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3272 switch (SSP) { 3273 default: 3274 Diags.Report(diag::err_drv_invalid_value) 3275 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3276 break; 3277 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3278 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3279 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3280 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3281 } 3282 3283 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3284 StringRef Val = A->getValue(); 3285 if (Val == "uninitialized") 3286 Opts.setTrivialAutoVarInit( 3287 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3288 else if (Val == "zero") 3289 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3290 else if (Val == "pattern") 3291 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3292 else 3293 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3294 } 3295 3296 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init_stop_after)) { 3297 int Val = std::stoi(A->getValue()); 3298 Opts.TrivialAutoVarInitStopAfter = Val; 3299 } 3300 3301 // Parse -fsanitize= arguments. 3302 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3303 Diags, Opts.Sanitize); 3304 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3305 Opts.SanitizeAddressFieldPadding = 3306 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3307 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3308 std::vector<std::string> systemBlacklists = 3309 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3310 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3311 systemBlacklists.begin(), 3312 systemBlacklists.end()); 3313 3314 // -fxray-instrument 3315 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3316 Opts.XRayAlwaysEmitCustomEvents = 3317 Args.hasArg(OPT_fxray_always_emit_customevents); 3318 Opts.XRayAlwaysEmitTypedEvents = 3319 Args.hasArg(OPT_fxray_always_emit_typedevents); 3320 3321 // -fxray-{always,never}-instrument= filenames. 3322 Opts.XRayAlwaysInstrumentFiles = 3323 Args.getAllArgValues(OPT_fxray_always_instrument); 3324 Opts.XRayNeverInstrumentFiles = 3325 Args.getAllArgValues(OPT_fxray_never_instrument); 3326 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3327 3328 // -fforce-emit-vtables 3329 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3330 3331 // -fallow-editor-placeholders 3332 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3333 3334 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3335 3336 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3337 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3338 3339 StringRef Ver = A->getValue(); 3340 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3341 unsigned Major, Minor = 0; 3342 3343 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3344 // y or y.0 (4 <= y <= current version). 3345 if (!VerParts.first.startswith("0") && 3346 !VerParts.first.getAsInteger(10, Major) && 3347 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3348 (Major == 3 ? VerParts.second.size() == 1 && 3349 !VerParts.second.getAsInteger(10, Minor) 3350 : VerParts.first.size() == Ver.size() || 3351 VerParts.second == "0")) { 3352 // Got a valid version number. 3353 if (Major == 3 && Minor <= 8) 3354 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3355 else if (Major <= 4) 3356 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3357 else if (Major <= 6) 3358 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3359 else if (Major <= 7) 3360 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3361 else if (Major <= 9) 3362 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3363 } else if (Ver != "latest") { 3364 Diags.Report(diag::err_drv_invalid_value) 3365 << A->getAsString(Args) << A->getValue(); 3366 } 3367 } 3368 3369 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3370 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3371 3372 Opts.MatrixTypes = Args.hasArg(OPT_fenable_matrix); 3373 3374 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3375 3376 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3377 StringRef SignScope = A->getValue(); 3378 3379 if (SignScope.equals_lower("none")) 3380 Opts.setSignReturnAddressScope( 3381 LangOptions::SignReturnAddressScopeKind::None); 3382 else if (SignScope.equals_lower("all")) 3383 Opts.setSignReturnAddressScope( 3384 LangOptions::SignReturnAddressScopeKind::All); 3385 else if (SignScope.equals_lower("non-leaf")) 3386 Opts.setSignReturnAddressScope( 3387 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3388 else 3389 Diags.Report(diag::err_drv_invalid_value) 3390 << A->getAsString(Args) << SignScope; 3391 3392 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3393 StringRef SignKey = A->getValue(); 3394 if (!SignScope.empty() && !SignKey.empty()) { 3395 if (SignKey.equals_lower("a_key")) 3396 Opts.setSignReturnAddressKey( 3397 LangOptions::SignReturnAddressKeyKind::AKey); 3398 else if (SignKey.equals_lower("b_key")) 3399 Opts.setSignReturnAddressKey( 3400 LangOptions::SignReturnAddressKeyKind::BKey); 3401 else 3402 Diags.Report(diag::err_drv_invalid_value) 3403 << A->getAsString(Args) << SignKey; 3404 } 3405 } 3406 } 3407 3408 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3409 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 3410 3411 Opts.CompatibilityQualifiedIdBlockParamTypeChecking = 3412 Args.hasArg(OPT_fcompatibility_qualified_id_block_param_type_checking); 3413 3414 Opts.RelativeCXXABIVTables = 3415 Args.hasFlag(OPT_fexperimental_relative_cxx_abi_vtables, 3416 OPT_fno_experimental_relative_cxx_abi_vtables, 3417 /*default=*/false); 3418 } 3419 3420 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3421 switch (Action) { 3422 case frontend::ASTDeclList: 3423 case frontend::ASTDump: 3424 case frontend::ASTPrint: 3425 case frontend::ASTView: 3426 case frontend::EmitAssembly: 3427 case frontend::EmitBC: 3428 case frontend::EmitHTML: 3429 case frontend::EmitLLVM: 3430 case frontend::EmitLLVMOnly: 3431 case frontend::EmitCodeGenOnly: 3432 case frontend::EmitObj: 3433 case frontend::FixIt: 3434 case frontend::GenerateModule: 3435 case frontend::GenerateModuleInterface: 3436 case frontend::GenerateHeaderModule: 3437 case frontend::GeneratePCH: 3438 case frontend::GenerateInterfaceStubs: 3439 case frontend::ParseSyntaxOnly: 3440 case frontend::ModuleFileInfo: 3441 case frontend::VerifyPCH: 3442 case frontend::PluginAction: 3443 case frontend::RewriteObjC: 3444 case frontend::RewriteTest: 3445 case frontend::RunAnalysis: 3446 case frontend::TemplightDump: 3447 case frontend::MigrateSource: 3448 return false; 3449 3450 case frontend::DumpCompilerOptions: 3451 case frontend::DumpRawTokens: 3452 case frontend::DumpTokens: 3453 case frontend::InitOnly: 3454 case frontend::PrintPreamble: 3455 case frontend::PrintPreprocessedInput: 3456 case frontend::RewriteMacros: 3457 case frontend::RunPreprocessorOnly: 3458 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3459 return true; 3460 } 3461 llvm_unreachable("invalid frontend action"); 3462 } 3463 3464 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3465 DiagnosticsEngine &Diags, 3466 frontend::ActionKind Action) { 3467 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3468 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3469 Args.hasArg(OPT_pch_through_hdrstop_use); 3470 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3471 Opts.PCHThroughHeader = 3472 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3473 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3474 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3475 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3476 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3477 3478 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3479 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3480 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3481 3482 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3483 auto Split = StringRef(A).split('='); 3484 Opts.MacroPrefixMap.insert( 3485 {std::string(Split.first), std::string(Split.second)}); 3486 } 3487 3488 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3489 StringRef Value(A->getValue()); 3490 size_t Comma = Value.find(','); 3491 unsigned Bytes = 0; 3492 unsigned EndOfLine = 0; 3493 3494 if (Comma == StringRef::npos || 3495 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3496 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3497 Diags.Report(diag::err_drv_preamble_format); 3498 else { 3499 Opts.PrecompiledPreambleBytes.first = Bytes; 3500 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3501 } 3502 } 3503 3504 // Add the __CET__ macro if a CFProtection option is set. 3505 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3506 StringRef Name = A->getValue(); 3507 if (Name == "branch") 3508 Opts.addMacroDef("__CET__=1"); 3509 else if (Name == "return") 3510 Opts.addMacroDef("__CET__=2"); 3511 else if (Name == "full") 3512 Opts.addMacroDef("__CET__=3"); 3513 } 3514 3515 // Add macros from the command line. 3516 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3517 if (A->getOption().matches(OPT_D)) 3518 Opts.addMacroDef(A->getValue()); 3519 else 3520 Opts.addMacroUndef(A->getValue()); 3521 } 3522 3523 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3524 3525 // Add the ordered list of -includes. 3526 for (const auto *A : Args.filtered(OPT_include)) 3527 Opts.Includes.emplace_back(A->getValue()); 3528 3529 for (const auto *A : Args.filtered(OPT_chain_include)) 3530 Opts.ChainedIncludes.emplace_back(A->getValue()); 3531 3532 for (const auto *A : Args.filtered(OPT_remap_file)) { 3533 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3534 3535 if (Split.second.empty()) { 3536 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3537 continue; 3538 } 3539 3540 Opts.addRemappedFile(Split.first, Split.second); 3541 } 3542 3543 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3544 StringRef Name = A->getValue(); 3545 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3546 .Case("libc++", ARCXX_libcxx) 3547 .Case("libstdc++", ARCXX_libstdcxx) 3548 .Case("none", ARCXX_nolib) 3549 .Default(~0U); 3550 if (Library == ~0U) 3551 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3552 else 3553 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3554 } 3555 3556 // Always avoid lexing editor placeholders when we're just running the 3557 // preprocessor as we never want to emit the 3558 // "editor placeholder in source file" error in PP only mode. 3559 if (isStrictlyPreprocessorAction(Action)) 3560 Opts.LexEditorPlaceholders = false; 3561 3562 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3563 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3564 } 3565 3566 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3567 ArgList &Args, 3568 frontend::ActionKind Action) { 3569 if (isStrictlyPreprocessorAction(Action)) 3570 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3571 else 3572 Opts.ShowCPP = 0; 3573 3574 Opts.ShowComments = Args.hasArg(OPT_C); 3575 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3576 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3577 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3578 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3579 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3580 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3581 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3582 } 3583 3584 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3585 DiagnosticsEngine &Diags) { 3586 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3587 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3588 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3589 StringRef Value = A->getValue(); 3590 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3591 .Case("default", llvm::EABI::Default) 3592 .Case("4", llvm::EABI::EABI4) 3593 .Case("5", llvm::EABI::EABI5) 3594 .Case("gnu", llvm::EABI::GNU) 3595 .Default(llvm::EABI::Unknown); 3596 if (EABIVersion == llvm::EABI::Unknown) 3597 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3598 << Value; 3599 else 3600 Opts.EABIVersion = EABIVersion; 3601 } 3602 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3603 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3604 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3605 Opts.LinkerVersion = 3606 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3607 Opts.Triple = std::string(Args.getLastArgValue(OPT_triple)); 3608 // Use the default target triple if unspecified. 3609 if (Opts.Triple.empty()) 3610 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3611 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3612 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3613 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3614 Opts.NVPTXUseShortPointers = Args.hasFlag( 3615 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3616 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3617 llvm::VersionTuple Version; 3618 if (Version.tryParse(A->getValue())) 3619 Diags.Report(diag::err_drv_invalid_value) 3620 << A->getAsString(Args) << A->getValue(); 3621 else 3622 Opts.SDKVersion = Version; 3623 } 3624 } 3625 3626 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3627 ArrayRef<const char *> CommandLineArgs, 3628 DiagnosticsEngine &Diags) { 3629 bool Success = true; 3630 3631 // Parse the arguments. 3632 const OptTable &Opts = getDriverOptTable(); 3633 const unsigned IncludedFlagsBitmask = options::CC1Option; 3634 unsigned MissingArgIndex, MissingArgCount; 3635 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3636 MissingArgCount, IncludedFlagsBitmask); 3637 LangOptions &LangOpts = *Res.getLangOpts(); 3638 3639 // Check for missing argument error. 3640 if (MissingArgCount) { 3641 Diags.Report(diag::err_drv_missing_argument) 3642 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3643 Success = false; 3644 } 3645 3646 // Issue errors on unknown arguments. 3647 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3648 auto ArgString = A->getAsString(Args); 3649 std::string Nearest; 3650 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3651 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3652 else 3653 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3654 << ArgString << Nearest; 3655 Success = false; 3656 } 3657 3658 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3659 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3660 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3661 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3662 Res.getDependencyOutputOpts().Targets.empty()) { 3663 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3664 Success = false; 3665 } 3666 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3667 /*DefaultDiagColor=*/false); 3668 ParseCommentArgs(LangOpts.CommentOpts, Args); 3669 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3670 // FIXME: We shouldn't have to pass the DashX option around here 3671 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3672 LangOpts.IsHeaderFile); 3673 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3674 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3675 Res.getTargetOpts(), Res.getFrontendOpts()); 3676 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3677 Res.getFileSystemOpts().WorkingDir); 3678 llvm::Triple T(Res.getTargetOpts().Triple); 3679 if (DashX.getFormat() == InputKind::Precompiled || 3680 DashX.getLanguage() == Language::LLVM_IR) { 3681 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3682 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3683 // what the input type is. 3684 if (Args.hasArg(OPT_fobjc_arc)) 3685 LangOpts.ObjCAutoRefCount = 1; 3686 // PIClevel and PIELevel are needed during code generation and this should be 3687 // set regardless of the input type. 3688 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3689 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3690 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3691 Diags, LangOpts.Sanitize); 3692 } else { 3693 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3694 // FIXME: Should we really be calling this for an Language::Asm input? 3695 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3696 Res.getPreprocessorOpts(), Diags); 3697 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3698 LangOpts.ObjCExceptions = 1; 3699 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3700 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3701 // preprocessed input as we don't expect it to be used with -std=libc++ 3702 // anyway. 3703 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3704 } 3705 } 3706 3707 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3708 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3709 3710 LangOpts.FunctionAlignment = 3711 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3712 3713 if (LangOpts.CUDA) { 3714 // During CUDA device-side compilation, the aux triple is the 3715 // triple used for host compilation. 3716 if (LangOpts.CUDAIsDevice) 3717 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3718 } 3719 3720 // Set the triple of the host for OpenMP device compile. 3721 if (LangOpts.OpenMPIsDevice) 3722 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3723 3724 // FIXME: Override value name discarding when asan or msan is used because the 3725 // backend passes depend on the name of the alloca in order to print out 3726 // names. 3727 Res.getCodeGenOpts().DiscardValueNames &= 3728 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3729 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3730 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3731 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3732 3733 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3734 Res.getFrontendOpts().ProgramAction); 3735 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3736 Res.getFrontendOpts().ProgramAction); 3737 3738 // Turn on -Wspir-compat for SPIR target. 3739 if (T.isSPIR()) 3740 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3741 3742 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3743 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3744 !Res.getLangOpts()->Sanitize.empty()) { 3745 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3746 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3747 } 3748 return Success; 3749 } 3750 3751 std::string CompilerInvocation::getModuleHash() const { 3752 // Note: For QoI reasons, the things we use as a hash here should all be 3753 // dumped via the -module-info flag. 3754 using llvm::hash_code; 3755 using llvm::hash_value; 3756 using llvm::hash_combine; 3757 using llvm::hash_combine_range; 3758 3759 // Start the signature with the compiler version. 3760 // FIXME: We'd rather use something more cryptographically sound than 3761 // CityHash, but this will do for now. 3762 hash_code code = hash_value(getClangFullRepositoryVersion()); 3763 3764 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3765 // and getClangFullRepositoryVersion() doesn't include git revision. 3766 code = hash_combine(code, serialization::VERSION_MAJOR, 3767 serialization::VERSION_MINOR); 3768 3769 // Extend the signature with the language options 3770 #define LANGOPT(Name, Bits, Default, Description) \ 3771 code = hash_combine(code, LangOpts->Name); 3772 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3773 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3774 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3775 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3776 #include "clang/Basic/LangOptions.def" 3777 3778 for (StringRef Feature : LangOpts->ModuleFeatures) 3779 code = hash_combine(code, Feature); 3780 3781 // Extend the signature with the target options. 3782 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3783 TargetOpts->ABI); 3784 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3785 code = hash_combine(code, FeatureAsWritten); 3786 3787 // Extend the signature with preprocessor options. 3788 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3789 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3790 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3791 3792 for (const auto &I : getPreprocessorOpts().Macros) { 3793 // If we're supposed to ignore this macro for the purposes of modules, 3794 // don't put it into the hash. 3795 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3796 // Check whether we're ignoring this macro. 3797 StringRef MacroDef = I.first; 3798 if (hsOpts.ModulesIgnoreMacros.count( 3799 llvm::CachedHashString(MacroDef.split('=').first))) 3800 continue; 3801 } 3802 3803 code = hash_combine(code, I.first, I.second); 3804 } 3805 3806 // Extend the signature with the sysroot and other header search options. 3807 code = hash_combine(code, hsOpts.Sysroot, 3808 hsOpts.ModuleFormat, 3809 hsOpts.UseDebugInfo, 3810 hsOpts.UseBuiltinIncludes, 3811 hsOpts.UseStandardSystemIncludes, 3812 hsOpts.UseStandardCXXIncludes, 3813 hsOpts.UseLibcxx, 3814 hsOpts.ModulesValidateDiagnosticOptions); 3815 code = hash_combine(code, hsOpts.ResourceDir); 3816 3817 if (hsOpts.ModulesStrictContextHash) { 3818 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3819 hsOpts.SystemHeaderPrefixes.end()); 3820 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3821 hsOpts.UserEntries.end()); 3822 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3823 hsOpts.UserEntries.size(), UEC); 3824 3825 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3826 #define DIAGOPT(Name, Bits, Default) \ 3827 code = hash_combine(code, diagOpts.Name); 3828 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3829 code = hash_combine(code, diagOpts.get##Name()); 3830 #include "clang/Basic/DiagnosticOptions.def" 3831 #undef DIAGOPT 3832 #undef ENUM_DIAGOPT 3833 } 3834 3835 // Extend the signature with the user build path. 3836 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3837 3838 // Extend the signature with the module file extensions. 3839 const FrontendOptions &frontendOpts = getFrontendOpts(); 3840 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3841 code = ext->hashExtension(code); 3842 } 3843 3844 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3845 // affects the debug info in the PCM. 3846 if (getCodeGenOpts().DebugTypeExtRefs) 3847 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3848 code = hash_combine(code, KeyValue.first, KeyValue.second); 3849 3850 // Extend the signature with the enabled sanitizers, if at least one is 3851 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3852 SanitizerSet SanHash = LangOpts->Sanitize; 3853 SanHash.clear(getPPTransparentSanitizers()); 3854 if (!SanHash.empty()) 3855 code = hash_combine(code, SanHash.Mask); 3856 3857 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3858 } 3859 3860 namespace clang { 3861 3862 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3863 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3864 DiagnosticsEngine &Diags) { 3865 return createVFSFromCompilerInvocation(CI, Diags, 3866 llvm::vfs::getRealFileSystem()); 3867 } 3868 3869 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3870 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3871 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3872 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3873 return BaseFS; 3874 3875 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3876 // earlier vfs files are on the bottom 3877 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3878 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3879 Result->getBufferForFile(File); 3880 if (!Buffer) { 3881 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3882 continue; 3883 } 3884 3885 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3886 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3887 /*DiagContext*/ nullptr, Result); 3888 if (!FS) { 3889 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3890 continue; 3891 } 3892 3893 Result = FS; 3894 } 3895 return Result; 3896 } 3897 3898 } // namespace clang 3899