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/ModuleFileExtension.h" 45 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 46 #include "llvm/ADT/APInt.h" 47 #include "llvm/ADT/ArrayRef.h" 48 #include "llvm/ADT/CachedHashString.h" 49 #include "llvm/ADT/Hashing.h" 50 #include "llvm/ADT/None.h" 51 #include "llvm/ADT/Optional.h" 52 #include "llvm/ADT/SmallString.h" 53 #include "llvm/ADT/SmallVector.h" 54 #include "llvm/ADT/StringRef.h" 55 #include "llvm/ADT/StringSwitch.h" 56 #include "llvm/ADT/Triple.h" 57 #include "llvm/ADT/Twine.h" 58 #include "llvm/IR/DebugInfoMetadata.h" 59 #include "llvm/Linker/Linker.h" 60 #include "llvm/MC/MCTargetOptions.h" 61 #include "llvm/Option/Arg.h" 62 #include "llvm/Option/ArgList.h" 63 #include "llvm/Option/OptSpecifier.h" 64 #include "llvm/Option/OptTable.h" 65 #include "llvm/Option/Option.h" 66 #include "llvm/ProfileData/InstrProfReader.h" 67 #include "llvm/Support/CodeGen.h" 68 #include "llvm/Support/Compiler.h" 69 #include "llvm/Support/Error.h" 70 #include "llvm/Support/ErrorHandling.h" 71 #include "llvm/Support/ErrorOr.h" 72 #include "llvm/Support/FileSystem.h" 73 #include "llvm/Support/Host.h" 74 #include "llvm/Support/MathExtras.h" 75 #include "llvm/Support/MemoryBuffer.h" 76 #include "llvm/Support/Path.h" 77 #include "llvm/Support/Process.h" 78 #include "llvm/Support/Regex.h" 79 #include "llvm/Support/VersionTuple.h" 80 #include "llvm/Support/VirtualFileSystem.h" 81 #include "llvm/Support/raw_ostream.h" 82 #include "llvm/Target/TargetOptions.h" 83 #include <algorithm> 84 #include <atomic> 85 #include <cassert> 86 #include <cstddef> 87 #include <cstring> 88 #include <memory> 89 #include <string> 90 #include <tuple> 91 #include <utility> 92 #include <vector> 93 94 using namespace clang; 95 using namespace driver; 96 using namespace options; 97 using namespace llvm::opt; 98 99 //===----------------------------------------------------------------------===// 100 // Initialization. 101 //===----------------------------------------------------------------------===// 102 103 CompilerInvocationBase::CompilerInvocationBase() 104 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 105 DiagnosticOpts(new DiagnosticOptions()), 106 HeaderSearchOpts(new HeaderSearchOptions()), 107 PreprocessorOpts(new PreprocessorOptions()) {} 108 109 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 110 : LangOpts(new LangOptions(*X.getLangOpts())), 111 TargetOpts(new TargetOptions(X.getTargetOpts())), 112 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 113 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 114 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 115 116 CompilerInvocationBase::~CompilerInvocationBase() = default; 117 118 //===----------------------------------------------------------------------===// 119 // Deserialization (from args) 120 //===----------------------------------------------------------------------===// 121 122 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 123 DiagnosticsEngine &Diags) { 124 unsigned DefaultOpt = llvm::CodeGenOpt::None; 125 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 126 DefaultOpt = llvm::CodeGenOpt::Default; 127 128 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 129 if (A->getOption().matches(options::OPT_O0)) 130 return llvm::CodeGenOpt::None; 131 132 if (A->getOption().matches(options::OPT_Ofast)) 133 return llvm::CodeGenOpt::Aggressive; 134 135 assert(A->getOption().matches(options::OPT_O)); 136 137 StringRef S(A->getValue()); 138 if (S == "s" || S == "z" || S.empty()) 139 return llvm::CodeGenOpt::Default; 140 141 if (S == "g") 142 return llvm::CodeGenOpt::Less; 143 144 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 145 } 146 147 return DefaultOpt; 148 } 149 150 static unsigned getOptimizationLevelSize(ArgList &Args) { 151 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 152 if (A->getOption().matches(options::OPT_O)) { 153 switch (A->getValue()[0]) { 154 default: 155 return 0; 156 case 's': 157 return 1; 158 case 'z': 159 return 2; 160 } 161 } 162 } 163 return 0; 164 } 165 166 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 167 OptSpecifier GroupWithValue, 168 std::vector<std::string> &Diagnostics) { 169 for (auto *A : Args.filtered(Group)) { 170 if (A->getOption().getKind() == Option::FlagClass) { 171 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 172 // its name (minus the "W" or "R" at the beginning) to the warning list. 173 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 174 } else if (A->getOption().matches(GroupWithValue)) { 175 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 176 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 177 } else { 178 // Otherwise, add its value (for OPT_W_Joined and similar). 179 for (const auto *Arg : A->getValues()) 180 Diagnostics.emplace_back(Arg); 181 } 182 } 183 } 184 185 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 186 // it won't verify the input. 187 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 188 DiagnosticsEngine *Diags); 189 190 static void getAllNoBuiltinFuncValues(ArgList &Args, 191 std::vector<std::string> &Funcs) { 192 SmallVector<const char *, 8> Values; 193 for (const auto &Arg : Args) { 194 const Option &O = Arg->getOption(); 195 if (O.matches(options::OPT_fno_builtin_)) { 196 const char *FuncName = Arg->getValue(); 197 if (Builtin::Context::isBuiltinFunc(FuncName)) 198 Values.push_back(FuncName); 199 } 200 } 201 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 202 } 203 204 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 205 DiagnosticsEngine &Diags) { 206 bool Success = true; 207 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 208 StringRef Name = A->getValue(); 209 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 210 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 211 .Case(CMDFLAG, NAME##Model) 212 #include "clang/StaticAnalyzer/Core/Analyses.def" 213 .Default(NumStores); 214 if (Value == NumStores) { 215 Diags.Report(diag::err_drv_invalid_value) 216 << A->getAsString(Args) << Name; 217 Success = false; 218 } else { 219 Opts.AnalysisStoreOpt = Value; 220 } 221 } 222 223 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 224 StringRef Name = A->getValue(); 225 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 226 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 227 .Case(CMDFLAG, NAME##Model) 228 #include "clang/StaticAnalyzer/Core/Analyses.def" 229 .Default(NumConstraints); 230 if (Value == NumConstraints) { 231 Diags.Report(diag::err_drv_invalid_value) 232 << A->getAsString(Args) << Name; 233 Success = false; 234 } else { 235 Opts.AnalysisConstraintsOpt = Value; 236 } 237 } 238 239 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 240 StringRef Name = A->getValue(); 241 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 242 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 243 .Case(CMDFLAG, PD_##NAME) 244 #include "clang/StaticAnalyzer/Core/Analyses.def" 245 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 246 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 247 Diags.Report(diag::err_drv_invalid_value) 248 << A->getAsString(Args) << Name; 249 Success = false; 250 } else { 251 Opts.AnalysisDiagOpt = Value; 252 } 253 } 254 255 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 256 StringRef Name = A->getValue(); 257 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 258 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 259 .Case(CMDFLAG, NAME) 260 #include "clang/StaticAnalyzer/Core/Analyses.def" 261 .Default(NumPurgeModes); 262 if (Value == NumPurgeModes) { 263 Diags.Report(diag::err_drv_invalid_value) 264 << A->getAsString(Args) << Name; 265 Success = false; 266 } else { 267 Opts.AnalysisPurgeOpt = Value; 268 } 269 } 270 271 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 272 StringRef Name = A->getValue(); 273 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 274 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 275 .Case(CMDFLAG, NAME) 276 #include "clang/StaticAnalyzer/Core/Analyses.def" 277 .Default(NumInliningModes); 278 if (Value == NumInliningModes) { 279 Diags.Report(diag::err_drv_invalid_value) 280 << A->getAsString(Args) << Name; 281 Success = false; 282 } else { 283 Opts.InliningMode = Value; 284 } 285 } 286 287 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 288 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 289 Opts.ShowCheckerHelpDeveloper = 290 Args.hasArg(OPT_analyzer_checker_help_developer); 291 292 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 293 Opts.ShowCheckerOptionAlphaList = 294 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 295 Opts.ShowCheckerOptionDeveloperList = 296 Args.hasArg(OPT_analyzer_checker_option_help_developer); 297 298 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 299 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 300 Opts.ShouldEmitErrorsOnInvalidConfigValue = 301 /* negated */!llvm::StringSwitch<bool>( 302 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 303 .Case("true", true) 304 .Case("false", false) 305 .Default(false); 306 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 307 308 Opts.visualizeExplodedGraphWithGraphViz = 309 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 310 Opts.DumpExplodedGraphTo = Args.getLastArgValue(OPT_analyzer_dump_egraph); 311 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 312 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 313 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 314 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 315 Opts.AnalyzeNestedBlocks = 316 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 317 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 318 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 319 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 320 Opts.maxBlockVisitOnPath = 321 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 322 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 323 Opts.InlineMaxStackDepth = 324 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 325 Opts.InlineMaxStackDepth, Diags); 326 327 Opts.CheckersAndPackages.clear(); 328 for (const Arg *A : 329 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 330 A->claim(); 331 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 332 // We can have a list of comma separated checker names, e.g: 333 // '-analyzer-checker=cocoa,unix' 334 StringRef CheckerAndPackageList = A->getValue(); 335 SmallVector<StringRef, 16> CheckersAndPackages; 336 CheckerAndPackageList.split(CheckersAndPackages, ","); 337 for (const StringRef CheckerOrPackage : CheckersAndPackages) 338 Opts.CheckersAndPackages.emplace_back(CheckerOrPackage, IsEnabled); 339 } 340 341 // Go through the analyzer configuration options. 342 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 343 344 // We can have a list of comma separated config names, e.g: 345 // '-analyzer-config key1=val1,key2=val2' 346 StringRef configList = A->getValue(); 347 SmallVector<StringRef, 4> configVals; 348 configList.split(configVals, ","); 349 for (const auto &configVal : configVals) { 350 StringRef key, val; 351 std::tie(key, val) = configVal.split("="); 352 if (val.empty()) { 353 Diags.Report(SourceLocation(), 354 diag::err_analyzer_config_no_value) << configVal; 355 Success = false; 356 break; 357 } 358 if (val.find('=') != StringRef::npos) { 359 Diags.Report(SourceLocation(), 360 diag::err_analyzer_config_multiple_values) 361 << configVal; 362 Success = false; 363 break; 364 } 365 366 // TODO: Check checker options too, possibly in CheckerRegistry. 367 // Leave unknown non-checker configs unclaimed. 368 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 369 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 370 Diags.Report(diag::err_analyzer_config_unknown) << key; 371 continue; 372 } 373 374 A->claim(); 375 Opts.Config[key] = val; 376 } 377 } 378 379 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 380 parseAnalyzerConfigs(Opts, &Diags); 381 else 382 parseAnalyzerConfigs(Opts, nullptr); 383 384 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 385 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 386 if (i != 0) 387 os << " "; 388 os << Args.getArgString(i); 389 } 390 os.flush(); 391 392 return Success; 393 } 394 395 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 396 StringRef OptionName, StringRef DefaultVal) { 397 return Config.insert({OptionName, DefaultVal}).first->second; 398 } 399 400 static void initOption(AnalyzerOptions::ConfigTable &Config, 401 DiagnosticsEngine *Diags, 402 StringRef &OptionField, StringRef Name, 403 StringRef DefaultVal) { 404 // String options may be known to invalid (e.g. if the expected string is a 405 // file name, but the file does not exist), those will have to be checked in 406 // parseConfigs. 407 OptionField = getStringOption(Config, Name, DefaultVal); 408 } 409 410 static void initOption(AnalyzerOptions::ConfigTable &Config, 411 DiagnosticsEngine *Diags, 412 bool &OptionField, StringRef Name, bool DefaultVal) { 413 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 414 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 415 .Case("true", true) 416 .Case("false", false) 417 .Default(None); 418 419 if (!PossiblyInvalidVal) { 420 if (Diags) 421 Diags->Report(diag::err_analyzer_config_invalid_input) 422 << Name << "a boolean"; 423 else 424 OptionField = DefaultVal; 425 } else 426 OptionField = PossiblyInvalidVal.getValue(); 427 } 428 429 static void initOption(AnalyzerOptions::ConfigTable &Config, 430 DiagnosticsEngine *Diags, 431 unsigned &OptionField, StringRef Name, 432 unsigned DefaultVal) { 433 434 OptionField = DefaultVal; 435 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 436 .getAsInteger(0, OptionField); 437 if (Diags && HasFailed) 438 Diags->Report(diag::err_analyzer_config_invalid_input) 439 << Name << "an unsigned"; 440 } 441 442 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 443 DiagnosticsEngine *Diags) { 444 // TODO: There's no need to store the entire configtable, it'd be plenty 445 // enough tostore checker options. 446 447 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 448 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 449 450 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 451 SHALLOW_VAL, DEEP_VAL) \ 452 switch (AnOpts.getUserMode()) { \ 453 case UMK_Shallow: \ 454 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 455 break; \ 456 case UMK_Deep: \ 457 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 458 break; \ 459 } \ 460 461 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 462 #undef ANALYZER_OPTION 463 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 464 465 // At this point, AnalyzerOptions is configured. Let's validate some options. 466 467 if (!Diags) 468 return; 469 470 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 471 Diags->Report(diag::err_analyzer_config_invalid_input) 472 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 473 474 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 475 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 476 << "a filename"; 477 478 if (!AnOpts.ModelPath.empty() && 479 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 480 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 481 << "a filename"; 482 483 // FIXME: Here we try to validate the silenced checkers or packages are valid. 484 // The current approach only validates the registered checkers which does not 485 // contain the runtime enabled checkers and optimally we would validate both. 486 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 487 std::vector<StringRef> Checkers = 488 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 489 std::vector<StringRef> Packages = 490 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 491 492 SmallVector<StringRef, 16> CheckersAndPackages; 493 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 494 495 for (const StringRef CheckerOrPackage : CheckersAndPackages) { 496 bool IsChecker = CheckerOrPackage.contains('.'); 497 bool IsValidName = 498 IsChecker ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 499 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 500 501 if (!IsValidName) 502 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 503 << CheckerOrPackage; 504 505 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 506 } 507 } 508 } 509 510 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 511 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 512 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 513 return true; 514 } 515 516 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 517 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 518 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 519 } 520 521 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 522 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 523 StringRef Value = A->getValue(); 524 if (Value == "small" || Value == "kernel" || Value == "medium" || 525 Value == "large" || Value == "tiny") 526 return Value; 527 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 528 } 529 return "default"; 530 } 531 532 static llvm::Reloc::Model getRelocModel(ArgList &Args, 533 DiagnosticsEngine &Diags) { 534 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 535 StringRef Value = A->getValue(); 536 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 537 .Case("static", llvm::Reloc::Static) 538 .Case("pic", llvm::Reloc::PIC_) 539 .Case("ropi", llvm::Reloc::ROPI) 540 .Case("rwpi", llvm::Reloc::RWPI) 541 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 542 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 543 .Default(None); 544 if (RM.hasValue()) 545 return *RM; 546 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 547 } 548 return llvm::Reloc::PIC_; 549 } 550 551 /// Create a new Regex instance out of the string value in \p RpassArg. 552 /// It returns a pointer to the newly generated Regex instance. 553 static std::shared_ptr<llvm::Regex> 554 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 555 Arg *RpassArg) { 556 StringRef Val = RpassArg->getValue(); 557 std::string RegexError; 558 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 559 if (!Pattern->isValid(RegexError)) { 560 Diags.Report(diag::err_drv_optimization_remark_pattern) 561 << RegexError << RpassArg->getAsString(Args); 562 Pattern.reset(); 563 } 564 return Pattern; 565 } 566 567 static bool parseDiagnosticLevelMask(StringRef FlagName, 568 const std::vector<std::string> &Levels, 569 DiagnosticsEngine *Diags, 570 DiagnosticLevelMask &M) { 571 bool Success = true; 572 for (const auto &Level : Levels) { 573 DiagnosticLevelMask const PM = 574 llvm::StringSwitch<DiagnosticLevelMask>(Level) 575 .Case("note", DiagnosticLevelMask::Note) 576 .Case("remark", DiagnosticLevelMask::Remark) 577 .Case("warning", DiagnosticLevelMask::Warning) 578 .Case("error", DiagnosticLevelMask::Error) 579 .Default(DiagnosticLevelMask::None); 580 if (PM == DiagnosticLevelMask::None) { 581 Success = false; 582 if (Diags) 583 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 584 } 585 M = M | PM; 586 } 587 return Success; 588 } 589 590 static void parseSanitizerKinds(StringRef FlagName, 591 const std::vector<std::string> &Sanitizers, 592 DiagnosticsEngine &Diags, SanitizerSet &S) { 593 for (const auto &Sanitizer : Sanitizers) { 594 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 595 if (K == SanitizerMask()) 596 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 597 else 598 S.set(K, true); 599 } 600 } 601 602 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 603 ArgList &Args, DiagnosticsEngine &D, 604 XRayInstrSet &S) { 605 llvm::SmallVector<StringRef, 2> BundleParts; 606 llvm::SplitString(Bundle, BundleParts, ","); 607 for (const auto B : BundleParts) { 608 auto Mask = parseXRayInstrValue(B); 609 if (Mask == XRayInstrKind::None) 610 if (B != "none") 611 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 612 else 613 S.Mask = Mask; 614 else if (Mask == XRayInstrKind::All) 615 S.Mask = Mask; 616 else 617 S.set(Mask, true); 618 } 619 } 620 621 // Set the profile kind for fprofile-instrument. 622 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 623 DiagnosticsEngine &Diags) { 624 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 625 if (A == nullptr) 626 return; 627 StringRef S = A->getValue(); 628 unsigned I = llvm::StringSwitch<unsigned>(S) 629 .Case("none", CodeGenOptions::ProfileNone) 630 .Case("clang", CodeGenOptions::ProfileClangInstr) 631 .Case("llvm", CodeGenOptions::ProfileIRInstr) 632 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 633 .Default(~0U); 634 if (I == ~0U) { 635 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 636 << S; 637 return; 638 } 639 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 640 Opts.setProfileInstr(Instrumentor); 641 } 642 643 // Set the profile kind using fprofile-instrument-use-path. 644 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 645 const Twine &ProfileName) { 646 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 647 // In error, return silently and let Clang PGOUse report the error message. 648 if (auto E = ReaderOrErr.takeError()) { 649 llvm::consumeError(std::move(E)); 650 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 651 return; 652 } 653 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 654 std::move(ReaderOrErr.get()); 655 if (PGOReader->isIRLevelProfile()) { 656 if (PGOReader->hasCSIRLevelProfile()) 657 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 658 else 659 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 660 } else 661 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 662 } 663 664 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 665 DiagnosticsEngine &Diags, 666 const TargetOptions &TargetOpts, 667 const FrontendOptions &FrontendOpts) { 668 bool Success = true; 669 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 670 671 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 672 // TODO: This could be done in Driver 673 unsigned MaxOptLevel = 3; 674 if (OptimizationLevel > MaxOptLevel) { 675 // If the optimization level is not supported, fall back on the default 676 // optimization 677 Diags.Report(diag::warn_drv_optimization_value) 678 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 679 OptimizationLevel = MaxOptLevel; 680 } 681 Opts.OptimizationLevel = OptimizationLevel; 682 683 // At O0 we want to fully disable inlining outside of cases marked with 684 // 'alwaysinline' that are required for correctness. 685 Opts.setInlining((Opts.OptimizationLevel == 0) 686 ? CodeGenOptions::OnlyAlwaysInlining 687 : CodeGenOptions::NormalInlining); 688 // Explicit inlining flags can disable some or all inlining even at 689 // optimization levels above zero. 690 if (Arg *InlineArg = Args.getLastArg( 691 options::OPT_finline_functions, options::OPT_finline_hint_functions, 692 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 693 if (Opts.OptimizationLevel > 0) { 694 const Option &InlineOpt = InlineArg->getOption(); 695 if (InlineOpt.matches(options::OPT_finline_functions)) 696 Opts.setInlining(CodeGenOptions::NormalInlining); 697 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 698 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 699 else 700 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 701 } 702 } 703 704 Opts.ExperimentalNewPassManager = Args.hasFlag( 705 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 706 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 707 708 Opts.DebugPassManager = 709 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 710 /* Default */ false); 711 712 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 713 StringRef Name = A->getValue(); 714 if (Name == "Accelerate") 715 Opts.setVecLib(CodeGenOptions::Accelerate); 716 else if (Name == "MASSV") 717 Opts.setVecLib(CodeGenOptions::MASSV); 718 else if (Name == "SVML") 719 Opts.setVecLib(CodeGenOptions::SVML); 720 else if (Name == "none") 721 Opts.setVecLib(CodeGenOptions::NoLibrary); 722 else 723 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 724 } 725 726 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 727 unsigned Val = 728 llvm::StringSwitch<unsigned>(A->getValue()) 729 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 730 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 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.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 759 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 760 Opts.SplitDwarfOutput = Args.getLastArgValue(OPT_split_dwarf_output); 761 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 762 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 763 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 764 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 765 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 766 767 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 768 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 769 770 if (const Arg *A = 771 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 772 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 773 774 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 775 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 776 777 llvm::Triple T(TargetOpts.Triple); 778 llvm::Triple::ArchType Arch = T.getArch(); 779 if (Opts.OptimizationLevel > 0 && 780 (Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64)) 781 Opts.EnableDebugEntryValues = Args.hasArg(OPT_femit_debug_entry_values); 782 783 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 784 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 785 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 786 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 787 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 788 OPT_fuse_register_sized_bitfield_access); 789 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 790 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 791 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 792 Args.hasArg(OPT_new_struct_path_tbaa); 793 Opts.FineGrainedBitfieldAccesses = 794 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 795 OPT_fno_fine_grained_bitfield_accesses, false); 796 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 797 Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line); 798 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 799 Opts.NoCommon = Args.hasArg(OPT_fno_common); 800 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 801 Opts.OptimizeSize = getOptimizationLevelSize(Args); 802 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 803 Args.hasArg(OPT_ffreestanding)); 804 if (Opts.SimplifyLibCalls) 805 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 806 Opts.UnrollLoops = 807 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 808 (Opts.OptimizationLevel > 1)); 809 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 810 811 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 812 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 813 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 814 Opts.DebugInfoForProfiling = Args.hasFlag( 815 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 816 Opts.DebugNameTable = static_cast<unsigned>( 817 Args.hasArg(OPT_ggnu_pubnames) 818 ? llvm::DICompileUnit::DebugNameTableKind::GNU 819 : Args.hasArg(OPT_gpubnames) 820 ? llvm::DICompileUnit::DebugNameTableKind::Default 821 : llvm::DICompileUnit::DebugNameTableKind::None); 822 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 823 824 setPGOInstrumentor(Opts, Args, Diags); 825 Opts.InstrProfileOutput = 826 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 827 Opts.ProfileInstrumentUsePath = 828 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 829 if (!Opts.ProfileInstrumentUsePath.empty()) 830 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 831 Opts.ProfileRemappingFile = 832 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ); 833 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 834 Diags.Report(diag::err_drv_argument_only_allowed_with) 835 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 836 << "-fexperimental-new-pass-manager"; 837 } 838 839 Opts.CoverageMapping = 840 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 841 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 842 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 843 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 844 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 845 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 846 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 847 Opts.RegisterGlobalDtorsWithAtExit = 848 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 849 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 850 Opts.CodeModel = TargetOpts.CodeModel; 851 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 852 853 // Handle -mframe-pointer option. 854 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 855 CodeGenOptions::FramePointerKind FP; 856 StringRef Name = A->getValue(); 857 bool ValidFP = true; 858 if (Name == "none") 859 FP = CodeGenOptions::FramePointerKind::None; 860 else if (Name == "non-leaf") 861 FP = CodeGenOptions::FramePointerKind::NonLeaf; 862 else if (Name == "all") 863 FP = CodeGenOptions::FramePointerKind::All; 864 else { 865 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 866 Success = false; 867 ValidFP = false; 868 } 869 if (ValidFP) 870 Opts.setFramePointer(FP); 871 } 872 873 // -pg may override -mframe-pointer 874 // TODO: This should be merged into getFramePointerKind in Clang.cpp. 875 if (Args.hasArg(OPT_pg)) 876 Opts.setFramePointer(CodeGenOptions::FramePointerKind::All); 877 878 Opts.DisableFree = Args.hasArg(OPT_disable_free); 879 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 880 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 881 Opts.NoEscapingBlockTailCalls = 882 Args.hasArg(OPT_fno_escaping_block_tail_calls); 883 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 884 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 885 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 886 Args.hasArg(OPT_cl_fast_relaxed_math); 887 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 888 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 889 Args.hasArg(OPT_cl_finite_math_only) || 890 Args.hasArg(OPT_cl_fast_relaxed_math)); 891 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 892 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 893 Args.hasArg(OPT_cl_finite_math_only) || 894 Args.hasArg(OPT_cl_fast_relaxed_math)); 895 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 896 Args.hasArg(OPT_cl_no_signed_zeros) || 897 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 898 Args.hasArg(OPT_cl_fast_relaxed_math)); 899 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 900 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) || 901 (Args.hasArg(OPT_fcuda_is_device) && 902 Args.hasArg(OPT_fcuda_flush_denormals_to_zero)); 903 Opts.CorrectlyRoundedDivSqrt = 904 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 905 Opts.UniformWGSize = 906 Args.hasArg(OPT_cl_uniform_work_group_size); 907 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 908 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 909 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 910 Opts.StrictFloatCastOverflow = 911 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 912 913 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 914 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 915 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 916 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 917 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 918 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 919 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 920 Opts.IncrementalLinkerCompatible = 921 Args.hasArg(OPT_mincremental_linker_compatible); 922 Opts.PIECopyRelocations = 923 Args.hasArg(OPT_mpie_copy_relocations); 924 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 925 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 926 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 927 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 928 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 929 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 930 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 931 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 932 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 933 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 934 Args.hasArg(OPT_cl_fast_relaxed_math); 935 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 936 Opts.RelocationModel = getRelocModel(Args, Diags); 937 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 938 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 939 Diags.Report(diag::err_drv_invalid_value) 940 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 941 << Opts.ThreadModel; 942 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 943 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 944 945 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 946 OPT_fno_function_sections, false); 947 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 948 OPT_fno_data_sections, false); 949 Opts.StackSizeSection = 950 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 951 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 952 OPT_fno_unique_section_names, true); 953 954 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 955 956 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 957 958 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 959 960 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 961 962 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 963 Opts.PrepareForThinLTO = false; 964 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 965 StringRef S = A->getValue(); 966 if (S == "thin") 967 Opts.PrepareForThinLTO = true; 968 else if (S != "full") 969 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 970 } 971 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 972 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 973 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 974 if (IK.getLanguage() != Language::LLVM_IR) 975 Diags.Report(diag::err_drv_argument_only_allowed_with) 976 << A->getAsString(Args) << "-x ir"; 977 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 978 } 979 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 980 Opts.SaveTempsFilePrefix = 981 llvm::StringSwitch<std::string>(A->getValue()) 982 .Case("obj", FrontendOpts.OutputFile) 983 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 984 985 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 986 987 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 988 989 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 990 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 991 992 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 993 994 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 995 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 996 997 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 998 999 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 1000 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1001 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1002 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1003 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 1004 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 1005 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 1006 Opts.CoverageNoFunctionNamesInData = 1007 Args.hasArg(OPT_coverage_no_function_names_in_data); 1008 Opts.ProfileFilterFiles = 1009 Args.getLastArgValue(OPT_fprofile_filter_files_EQ); 1010 Opts.ProfileExcludeFiles = 1011 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ); 1012 Opts.CoverageExitBlockBeforeBody = 1013 Args.hasArg(OPT_coverage_exit_block_before_body); 1014 if (Args.hasArg(OPT_coverage_version_EQ)) { 1015 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1016 if (CoverageVersion.size() != 4) { 1017 Diags.Report(diag::err_drv_invalid_value) 1018 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1019 << CoverageVersion; 1020 } else { 1021 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1022 } 1023 } 1024 } 1025 // Handle -fembed-bitcode option. 1026 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1027 StringRef Name = A->getValue(); 1028 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1029 .Case("off", CodeGenOptions::Embed_Off) 1030 .Case("all", CodeGenOptions::Embed_All) 1031 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1032 .Case("marker", CodeGenOptions::Embed_Marker) 1033 .Default(~0U); 1034 if (Model == ~0U) { 1035 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1036 Success = false; 1037 } else 1038 Opts.setEmbedBitcode( 1039 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1040 } 1041 // FIXME: For backend options that are not yet recorded as function 1042 // attributes in the IR, keep track of them so we can embed them in a 1043 // separate data section and use them when building the bitcode. 1044 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1045 for (const auto &A : Args) { 1046 // Do not encode output and input. 1047 if (A->getOption().getID() == options::OPT_o || 1048 A->getOption().getID() == options::OPT_INPUT || 1049 A->getOption().getID() == options::OPT_x || 1050 A->getOption().getID() == options::OPT_fembed_bitcode || 1051 (A->getOption().getGroup().isValid() && 1052 A->getOption().getGroup().getID() == options::OPT_W_Group)) 1053 continue; 1054 ArgStringList ASL; 1055 A->render(Args, ASL); 1056 for (const auto &arg : ASL) { 1057 StringRef ArgStr(arg); 1058 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1059 // using \00 to separate each commandline options. 1060 Opts.CmdArgs.push_back('\0'); 1061 } 1062 } 1063 } 1064 1065 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1066 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1067 Opts.InstrumentFunctionsAfterInlining = 1068 Args.hasArg(OPT_finstrument_functions_after_inlining); 1069 Opts.InstrumentFunctionEntryBare = 1070 Args.hasArg(OPT_finstrument_function_entry_bare); 1071 1072 Opts.XRayInstrumentFunctions = 1073 Args.hasArg(OPT_fxray_instrument); 1074 Opts.XRayAlwaysEmitCustomEvents = 1075 Args.hasArg(OPT_fxray_always_emit_customevents); 1076 Opts.XRayAlwaysEmitTypedEvents = 1077 Args.hasArg(OPT_fxray_always_emit_typedevents); 1078 Opts.XRayInstructionThreshold = 1079 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1080 1081 auto XRayInstrBundles = 1082 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1083 if (XRayInstrBundles.empty()) 1084 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1085 else 1086 for (const auto &A : XRayInstrBundles) 1087 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1088 Diags, Opts.XRayInstrumentationBundle); 1089 1090 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1091 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1092 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1093 1094 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1095 StringRef Name = A->getValue(); 1096 if (Name == "full") { 1097 Opts.CFProtectionReturn = 1; 1098 Opts.CFProtectionBranch = 1; 1099 } else if (Name == "return") 1100 Opts.CFProtectionReturn = 1; 1101 else if (Name == "branch") 1102 Opts.CFProtectionBranch = 1; 1103 else if (Name != "none") { 1104 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1105 Success = false; 1106 } 1107 } 1108 1109 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1110 OPT_compress_debug_sections_EQ)) { 1111 if (A->getOption().getID() == OPT_compress_debug_sections) { 1112 // TODO: be more clever about the compression type auto-detection 1113 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1114 } else { 1115 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1116 .Case("none", llvm::DebugCompressionType::None) 1117 .Case("zlib", llvm::DebugCompressionType::Z) 1118 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1119 .Default(llvm::DebugCompressionType::None); 1120 Opts.setCompressDebugSections(DCT); 1121 } 1122 } 1123 1124 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1125 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1126 for (auto *A : 1127 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1128 CodeGenOptions::BitcodeFileToLink F; 1129 F.Filename = A->getValue(); 1130 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1131 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1132 // When linking CUDA bitcode, propagate function attributes so that 1133 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1134 F.PropagateAttrs = true; 1135 F.Internalize = true; 1136 } 1137 Opts.LinkBitcodeFiles.push_back(F); 1138 } 1139 Opts.SanitizeCoverageType = 1140 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1141 Opts.SanitizeCoverageIndirectCalls = 1142 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1143 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1144 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1145 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1146 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1147 Opts.SanitizeCoverage8bitCounters = 1148 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1149 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1150 Opts.SanitizeCoverageTracePCGuard = 1151 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1152 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1153 Opts.SanitizeCoverageInline8bitCounters = 1154 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1155 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1156 Opts.SanitizeCoverageStackDepth = 1157 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1158 Opts.SanitizeMemoryTrackOrigins = 1159 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1160 Opts.SanitizeMemoryUseAfterDtor = 1161 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1162 OPT_fno_sanitize_memory_use_after_dtor, 1163 false); 1164 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1165 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1166 Opts.SanitizeCfiICallGeneralizePointers = 1167 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1168 Opts.SanitizeCfiCanonicalJumpTables = 1169 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1170 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1171 if (Arg *A = Args.getLastArg( 1172 OPT_fsanitize_address_poison_custom_array_cookie, 1173 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1174 Opts.SanitizeAddressPoisonCustomArrayCookie = 1175 A->getOption().getID() == 1176 OPT_fsanitize_address_poison_custom_array_cookie; 1177 } 1178 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1179 OPT_fno_sanitize_address_use_after_scope)) { 1180 Opts.SanitizeAddressUseAfterScope = 1181 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1182 } 1183 Opts.SanitizeAddressGlobalsDeadStripping = 1184 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1185 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1186 OPT_fno_sanitize_address_use_odr_indicator)) { 1187 Opts.SanitizeAddressUseOdrIndicator = 1188 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1189 } 1190 Opts.SSPBufferSize = 1191 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1192 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1193 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1194 StringRef Val = A->getValue(); 1195 unsigned StackAlignment = Opts.StackAlignment; 1196 Val.getAsInteger(10, StackAlignment); 1197 Opts.StackAlignment = StackAlignment; 1198 } 1199 1200 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1201 StringRef Val = A->getValue(); 1202 unsigned StackProbeSize = Opts.StackProbeSize; 1203 Val.getAsInteger(0, StackProbeSize); 1204 Opts.StackProbeSize = StackProbeSize; 1205 } 1206 1207 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1208 1209 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1210 StringRef Name = A->getValue(); 1211 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1212 .Case("legacy", CodeGenOptions::Legacy) 1213 .Case("non-legacy", CodeGenOptions::NonLegacy) 1214 .Case("mixed", CodeGenOptions::Mixed) 1215 .Default(~0U); 1216 if (Method == ~0U) { 1217 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1218 Success = false; 1219 } else { 1220 Opts.setObjCDispatchMethod( 1221 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1222 } 1223 } 1224 1225 1226 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1227 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1228 1229 if (Args.getLastArg(OPT_femulated_tls) || 1230 Args.getLastArg(OPT_fno_emulated_tls)) { 1231 Opts.ExplicitEmulatedTLS = true; 1232 Opts.EmulatedTLS = 1233 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1234 } 1235 1236 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1237 StringRef Name = A->getValue(); 1238 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1239 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1240 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1241 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1242 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1243 .Default(~0U); 1244 if (Model == ~0U) { 1245 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1246 Success = false; 1247 } else { 1248 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1249 } 1250 } 1251 1252 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1253 StringRef Val = A->getValue(); 1254 if (Val == "ieee") 1255 Opts.FPDenormalMode = "ieee"; 1256 else if (Val == "preserve-sign") 1257 Opts.FPDenormalMode = "preserve-sign"; 1258 else if (Val == "positive-zero") 1259 Opts.FPDenormalMode = "positive-zero"; 1260 else 1261 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1262 } 1263 1264 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1265 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1266 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1267 } else { 1268 assert(A->getOption().matches(OPT_freg_struct_return)); 1269 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1270 } 1271 } 1272 1273 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1274 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1275 bool NeedLocTracking = false; 1276 1277 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 1278 if (!Opts.OptRecordFile.empty()) 1279 NeedLocTracking = true; 1280 1281 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1282 Opts.OptRecordPasses = A->getValue(); 1283 NeedLocTracking = true; 1284 } 1285 1286 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1287 Opts.OptRecordFormat = A->getValue(); 1288 NeedLocTracking = true; 1289 } 1290 1291 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1292 Opts.OptimizationRemarkPattern = 1293 GenerateOptimizationRemarkRegex(Diags, Args, A); 1294 NeedLocTracking = true; 1295 } 1296 1297 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1298 Opts.OptimizationRemarkMissedPattern = 1299 GenerateOptimizationRemarkRegex(Diags, Args, A); 1300 NeedLocTracking = true; 1301 } 1302 1303 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1304 Opts.OptimizationRemarkAnalysisPattern = 1305 GenerateOptimizationRemarkRegex(Diags, Args, A); 1306 NeedLocTracking = true; 1307 } 1308 1309 Opts.DiagnosticsWithHotness = 1310 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1311 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1312 bool UsingProfile = UsingSampleProfile || 1313 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1314 1315 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1316 // An IR file will contain PGO as metadata 1317 IK.getLanguage() != Language::LLVM_IR) 1318 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1319 << "-fdiagnostics-show-hotness"; 1320 1321 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1322 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1323 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1324 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1325 << "-fdiagnostics-hotness-threshold="; 1326 1327 // If the user requested to use a sample profile for PGO, then the 1328 // backend will need to track source location information so the profile 1329 // can be incorporated into the IR. 1330 if (UsingSampleProfile) 1331 NeedLocTracking = true; 1332 1333 // If the user requested a flag that requires source locations available in 1334 // the backend, make sure that the backend tracks source location information. 1335 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1336 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1337 1338 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1339 1340 // Parse -fsanitize-recover= arguments. 1341 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1342 parseSanitizerKinds("-fsanitize-recover=", 1343 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1344 Opts.SanitizeRecover); 1345 parseSanitizerKinds("-fsanitize-trap=", 1346 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1347 Opts.SanitizeTrap); 1348 1349 Opts.CudaGpuBinaryFileName = 1350 Args.getLastArgValue(OPT_fcuda_include_gpubinary); 1351 1352 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1353 1354 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1355 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1356 1357 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1358 1359 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1360 1361 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1362 StringRef SignScope = A->getValue(); 1363 1364 if (SignScope.equals_lower("none")) 1365 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1366 else if (SignScope.equals_lower("all")) 1367 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1368 else if (SignScope.equals_lower("non-leaf")) 1369 Opts.setSignReturnAddress( 1370 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1371 else 1372 Diags.Report(diag::err_drv_invalid_value) 1373 << A->getAsString(Args) << SignScope; 1374 1375 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1376 StringRef SignKey = A->getValue(); 1377 if (!SignScope.empty() && !SignKey.empty()) { 1378 if (SignKey.equals_lower("a_key")) 1379 Opts.setSignReturnAddressKey( 1380 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1381 else if (SignKey.equals_lower("b_key")) 1382 Opts.setSignReturnAddressKey( 1383 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1384 else 1385 Diags.Report(diag::err_drv_invalid_value) 1386 << A->getAsString(Args) << SignKey; 1387 } 1388 } 1389 } 1390 1391 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1392 1393 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1394 1395 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1396 1397 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1398 1399 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1400 1401 Opts.SymbolPartition = Args.getLastArgValue(OPT_fsymbol_partition_EQ); 1402 1403 return Success; 1404 } 1405 1406 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1407 ArgList &Args) { 1408 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1409 Opts.Targets = Args.getAllArgValues(OPT_MT); 1410 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1411 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1412 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1413 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1414 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1415 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1416 if (Args.hasArg(OPT_show_includes)) { 1417 // Writing both /showIncludes and preprocessor output to stdout 1418 // would produce interleaved output, so use stderr for /showIncludes. 1419 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1420 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1421 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1422 else 1423 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1424 } else { 1425 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1426 } 1427 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1428 Opts.ModuleDependencyOutputDir = 1429 Args.getLastArgValue(OPT_module_dependency_dir); 1430 if (Args.hasArg(OPT_MV)) 1431 Opts.OutputFormat = DependencyOutputFormat::NMake; 1432 // Add sanitizer blacklists as extra dependencies. 1433 // They won't be discovered by the regular preprocessor, so 1434 // we let make / ninja to know about this implicit dependency. 1435 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1436 // Only the -fmodule-file=<file> form. 1437 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1438 StringRef Val = A->getValue(); 1439 if (Val.find('=') == StringRef::npos) 1440 Opts.ExtraDeps.push_back(Val); 1441 } 1442 } 1443 1444 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1445 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1446 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1447 // Support both clang's -f[no-]color-diagnostics and gcc's 1448 // -f[no-]diagnostics-colors[=never|always|auto]. 1449 enum { 1450 Colors_On, 1451 Colors_Off, 1452 Colors_Auto 1453 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1454 for (auto *A : Args) { 1455 const Option &O = A->getOption(); 1456 if (O.matches(options::OPT_fcolor_diagnostics) || 1457 O.matches(options::OPT_fdiagnostics_color)) { 1458 ShowColors = Colors_On; 1459 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1460 O.matches(options::OPT_fno_diagnostics_color)) { 1461 ShowColors = Colors_Off; 1462 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1463 StringRef Value(A->getValue()); 1464 if (Value == "always") 1465 ShowColors = Colors_On; 1466 else if (Value == "never") 1467 ShowColors = Colors_Off; 1468 else if (Value == "auto") 1469 ShowColors = Colors_Auto; 1470 } 1471 } 1472 return ShowColors == Colors_On || 1473 (ShowColors == Colors_Auto && 1474 llvm::sys::Process::StandardErrHasColors()); 1475 } 1476 1477 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1478 DiagnosticsEngine *Diags) { 1479 bool Success = true; 1480 for (const auto &Prefix : VerifyPrefixes) { 1481 // Every prefix must start with a letter and contain only alphanumeric 1482 // characters, hyphens, and underscores. 1483 auto BadChar = llvm::find_if(Prefix, [](char C) { 1484 return !isAlphanumeric(C) && C != '-' && C != '_'; 1485 }); 1486 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1487 Success = false; 1488 if (Diags) { 1489 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1490 Diags->Report(diag::note_drv_verify_prefix_spelling); 1491 } 1492 } 1493 } 1494 return Success; 1495 } 1496 1497 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1498 DiagnosticsEngine *Diags, 1499 bool DefaultDiagColor, bool DefaultShowOpt) { 1500 bool Success = true; 1501 1502 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1503 if (Arg *A = 1504 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1505 Opts.DiagnosticSerializationFile = A->getValue(); 1506 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1507 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1508 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1509 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1510 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1511 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1512 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1513 OPT_fno_show_column, 1514 /*Default=*/true); 1515 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1516 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1517 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1518 Opts.ShowOptionNames = 1519 Args.hasFlag(OPT_fdiagnostics_show_option, 1520 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1521 1522 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1523 1524 // Default behavior is to not to show note include stacks. 1525 Opts.ShowNoteIncludeStack = false; 1526 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1527 OPT_fno_diagnostics_show_note_include_stack)) 1528 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1529 Opts.ShowNoteIncludeStack = true; 1530 1531 StringRef ShowOverloads = 1532 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1533 if (ShowOverloads == "best") 1534 Opts.setShowOverloads(Ovl_Best); 1535 else if (ShowOverloads == "all") 1536 Opts.setShowOverloads(Ovl_All); 1537 else { 1538 Success = false; 1539 if (Diags) 1540 Diags->Report(diag::err_drv_invalid_value) 1541 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1542 << ShowOverloads; 1543 } 1544 1545 StringRef ShowCategory = 1546 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1547 if (ShowCategory == "none") 1548 Opts.ShowCategories = 0; 1549 else if (ShowCategory == "id") 1550 Opts.ShowCategories = 1; 1551 else if (ShowCategory == "name") 1552 Opts.ShowCategories = 2; 1553 else { 1554 Success = false; 1555 if (Diags) 1556 Diags->Report(diag::err_drv_invalid_value) 1557 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1558 << ShowCategory; 1559 } 1560 1561 StringRef Format = 1562 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1563 if (Format == "clang") 1564 Opts.setFormat(DiagnosticOptions::Clang); 1565 else if (Format == "msvc") 1566 Opts.setFormat(DiagnosticOptions::MSVC); 1567 else if (Format == "msvc-fallback") { 1568 Opts.setFormat(DiagnosticOptions::MSVC); 1569 Opts.CLFallbackMode = true; 1570 } else if (Format == "vi") 1571 Opts.setFormat(DiagnosticOptions::Vi); 1572 else { 1573 Success = false; 1574 if (Diags) 1575 Diags->Report(diag::err_drv_invalid_value) 1576 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1577 << Format; 1578 } 1579 1580 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1581 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1582 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1583 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1584 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1585 if (Args.hasArg(OPT_verify)) 1586 Opts.VerifyPrefixes.push_back("expected"); 1587 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1588 // then sort it to prepare for fast lookup using std::binary_search. 1589 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1590 Opts.VerifyDiagnostics = false; 1591 Success = false; 1592 } 1593 else 1594 llvm::sort(Opts.VerifyPrefixes); 1595 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1596 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1597 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1598 Diags, DiagMask); 1599 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1600 DiagMask = DiagnosticLevelMask::All; 1601 Opts.setVerifyIgnoreUnexpected(DiagMask); 1602 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1603 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1604 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1605 Opts.MacroBacktraceLimit = 1606 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1607 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1608 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1609 Args, OPT_ftemplate_backtrace_limit, 1610 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1611 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1612 Args, OPT_fconstexpr_backtrace_limit, 1613 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1614 Opts.SpellCheckingLimit = getLastArgIntValue( 1615 Args, OPT_fspell_checking_limit, 1616 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1617 Opts.SnippetLineLimit = getLastArgIntValue( 1618 Args, OPT_fcaret_diagnostics_max_lines, 1619 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1620 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1621 DiagnosticOptions::DefaultTabStop, Diags); 1622 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1623 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1624 if (Diags) 1625 Diags->Report(diag::warn_ignoring_ftabstop_value) 1626 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1627 } 1628 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1629 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1630 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1631 1632 return Success; 1633 } 1634 1635 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1636 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1637 } 1638 1639 /// Parse the argument to the -ftest-module-file-extension 1640 /// command-line argument. 1641 /// 1642 /// \returns true on error, false on success. 1643 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1644 std::string &BlockName, 1645 unsigned &MajorVersion, 1646 unsigned &MinorVersion, 1647 bool &Hashed, 1648 std::string &UserInfo) { 1649 SmallVector<StringRef, 5> Args; 1650 Arg.split(Args, ':', 5); 1651 if (Args.size() < 5) 1652 return true; 1653 1654 BlockName = Args[0]; 1655 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1656 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1657 if (Args[3].getAsInteger(2, Hashed)) return true; 1658 if (Args.size() > 4) 1659 UserInfo = Args[4]; 1660 return false; 1661 } 1662 1663 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1664 DiagnosticsEngine &Diags, 1665 bool &IsHeaderFile) { 1666 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1667 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1668 switch (A->getOption().getID()) { 1669 default: 1670 llvm_unreachable("Invalid option in group!"); 1671 case OPT_ast_list: 1672 Opts.ProgramAction = frontend::ASTDeclList; break; 1673 case OPT_ast_dump_all_EQ: 1674 case OPT_ast_dump_EQ: { 1675 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1676 .CaseLower("default", ADOF_Default) 1677 .CaseLower("json", ADOF_JSON) 1678 .Default(std::numeric_limits<unsigned>::max()); 1679 1680 if (Val != std::numeric_limits<unsigned>::max()) 1681 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1682 else { 1683 Diags.Report(diag::err_drv_invalid_value) 1684 << A->getAsString(Args) << A->getValue(); 1685 Opts.ASTDumpFormat = ADOF_Default; 1686 } 1687 LLVM_FALLTHROUGH; 1688 } 1689 case OPT_ast_dump: 1690 case OPT_ast_dump_all: 1691 case OPT_ast_dump_lookups: 1692 Opts.ProgramAction = frontend::ASTDump; break; 1693 case OPT_ast_print: 1694 Opts.ProgramAction = frontend::ASTPrint; break; 1695 case OPT_ast_view: 1696 Opts.ProgramAction = frontend::ASTView; break; 1697 case OPT_compiler_options_dump: 1698 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1699 case OPT_dump_raw_tokens: 1700 Opts.ProgramAction = frontend::DumpRawTokens; break; 1701 case OPT_dump_tokens: 1702 Opts.ProgramAction = frontend::DumpTokens; break; 1703 case OPT_S: 1704 Opts.ProgramAction = frontend::EmitAssembly; break; 1705 case OPT_emit_llvm_bc: 1706 Opts.ProgramAction = frontend::EmitBC; break; 1707 case OPT_emit_html: 1708 Opts.ProgramAction = frontend::EmitHTML; break; 1709 case OPT_emit_llvm: 1710 Opts.ProgramAction = frontend::EmitLLVM; break; 1711 case OPT_emit_llvm_only: 1712 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1713 case OPT_emit_codegen_only: 1714 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1715 case OPT_emit_obj: 1716 Opts.ProgramAction = frontend::EmitObj; break; 1717 case OPT_fixit_EQ: 1718 Opts.FixItSuffix = A->getValue(); 1719 LLVM_FALLTHROUGH; 1720 case OPT_fixit: 1721 Opts.ProgramAction = frontend::FixIt; break; 1722 case OPT_emit_module: 1723 Opts.ProgramAction = frontend::GenerateModule; break; 1724 case OPT_emit_module_interface: 1725 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1726 case OPT_emit_header_module: 1727 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1728 case OPT_emit_pch: 1729 Opts.ProgramAction = frontend::GeneratePCH; break; 1730 case OPT_emit_iterface_stubs: { 1731 llvm::Optional<frontend::ActionKind> ProgramAction = 1732 llvm::StringSwitch<llvm::Optional<frontend::ActionKind>>( 1733 Args.hasArg(OPT_iterface_stub_version_EQ) 1734 ? Args.getLastArgValue(OPT_iterface_stub_version_EQ) 1735 : "") 1736 .Case("experimental-yaml-elf-v1", 1737 frontend::GenerateInterfaceYAMLExpV1) 1738 .Case("experimental-tapi-elf-v1", 1739 frontend::GenerateInterfaceTBEExpV1) 1740 .Case("experimental-ifs-v1", 1741 frontend::GenerateInterfaceIfsExpV1) 1742 .Default(llvm::None); 1743 if (!ProgramAction) 1744 Diags.Report(diag::err_drv_invalid_value) 1745 << "Must specify a valid interface stub format type using " 1746 << "-interface-stub-version=<experimental-tapi-elf-v1 | " 1747 "experimental-ifs-v1 | " 1748 "experimental-yaml-elf-v1>"; 1749 Opts.ProgramAction = *ProgramAction; 1750 break; 1751 } 1752 case OPT_init_only: 1753 Opts.ProgramAction = frontend::InitOnly; break; 1754 case OPT_fsyntax_only: 1755 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1756 case OPT_module_file_info: 1757 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1758 case OPT_verify_pch: 1759 Opts.ProgramAction = frontend::VerifyPCH; break; 1760 case OPT_print_preamble: 1761 Opts.ProgramAction = frontend::PrintPreamble; break; 1762 case OPT_E: 1763 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1764 case OPT_templight_dump: 1765 Opts.ProgramAction = frontend::TemplightDump; break; 1766 case OPT_rewrite_macros: 1767 Opts.ProgramAction = frontend::RewriteMacros; break; 1768 case OPT_rewrite_objc: 1769 Opts.ProgramAction = frontend::RewriteObjC; break; 1770 case OPT_rewrite_test: 1771 Opts.ProgramAction = frontend::RewriteTest; break; 1772 case OPT_analyze: 1773 Opts.ProgramAction = frontend::RunAnalysis; break; 1774 case OPT_migrate: 1775 Opts.ProgramAction = frontend::MigrateSource; break; 1776 case OPT_Eonly: 1777 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1778 case OPT_print_dependency_directives_minimized_source: 1779 Opts.ProgramAction = 1780 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1781 break; 1782 } 1783 } 1784 1785 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1786 Opts.Plugins.emplace_back(A->getValue(0)); 1787 Opts.ProgramAction = frontend::PluginAction; 1788 Opts.ActionName = A->getValue(); 1789 } 1790 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1791 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1792 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1793 1794 for (const std::string &Arg : 1795 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1796 std::string BlockName; 1797 unsigned MajorVersion; 1798 unsigned MinorVersion; 1799 bool Hashed; 1800 std::string UserInfo; 1801 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1802 MinorVersion, Hashed, UserInfo)) { 1803 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1804 1805 continue; 1806 } 1807 1808 // Add the testing module file extension. 1809 Opts.ModuleFileExtensions.push_back( 1810 std::make_shared<TestModuleFileExtension>( 1811 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1812 } 1813 1814 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1815 Opts.CodeCompletionAt = 1816 ParsedSourceLocation::FromString(A->getValue()); 1817 if (Opts.CodeCompletionAt.FileName.empty()) 1818 Diags.Report(diag::err_drv_invalid_value) 1819 << A->getAsString(Args) << A->getValue(); 1820 } 1821 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1822 1823 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1824 Opts.Plugins = Args.getAllArgValues(OPT_load); 1825 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1826 Opts.ShowHelp = Args.hasArg(OPT_help); 1827 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1828 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1829 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1830 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1831 Opts.TimeTraceGranularity = getLastArgIntValue( 1832 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1833 Opts.ShowVersion = Args.hasArg(OPT_version); 1834 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1835 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1836 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1837 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1838 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1839 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1840 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1841 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1842 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1843 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1844 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1845 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1846 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1847 // Only the -fmodule-file=<file> form. 1848 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1849 StringRef Val = A->getValue(); 1850 if (Val.find('=') == StringRef::npos) 1851 Opts.ModuleFiles.push_back(Val); 1852 } 1853 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1854 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1855 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1856 1857 Opts.CodeCompleteOpts.IncludeMacros 1858 = Args.hasArg(OPT_code_completion_macros); 1859 Opts.CodeCompleteOpts.IncludeCodePatterns 1860 = Args.hasArg(OPT_code_completion_patterns); 1861 Opts.CodeCompleteOpts.IncludeGlobals 1862 = !Args.hasArg(OPT_no_code_completion_globals); 1863 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1864 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1865 Opts.CodeCompleteOpts.IncludeBriefComments 1866 = Args.hasArg(OPT_code_completion_brief_comments); 1867 Opts.CodeCompleteOpts.IncludeFixIts 1868 = Args.hasArg(OPT_code_completion_with_fixits); 1869 1870 Opts.OverrideRecordLayoutsFile 1871 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1872 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple); 1873 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1874 1875 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1876 OPT_arcmt_modify, 1877 OPT_arcmt_migrate)) { 1878 switch (A->getOption().getID()) { 1879 default: 1880 llvm_unreachable("missed a case"); 1881 case OPT_arcmt_check: 1882 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1883 break; 1884 case OPT_arcmt_modify: 1885 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1886 break; 1887 case OPT_arcmt_migrate: 1888 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1889 break; 1890 } 1891 } 1892 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1893 Opts.ARCMTMigrateReportOut 1894 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1895 Opts.ARCMTMigrateEmitARCErrors 1896 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1897 1898 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1899 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1900 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1901 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1902 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1903 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1904 if (Args.hasArg(OPT_objcmt_migrate_property)) 1905 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1906 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1907 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1908 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1909 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1910 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1911 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1912 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1913 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1914 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1915 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1916 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1917 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1918 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1919 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1920 if (Args.hasArg(OPT_objcmt_atomic_property)) 1921 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1922 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1923 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1924 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1925 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1926 if (Args.hasArg(OPT_objcmt_migrate_all)) 1927 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1928 1929 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1930 1931 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1932 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1933 Diags.Report(diag::err_drv_argument_not_allowed_with) 1934 << "ARC migration" << "ObjC migration"; 1935 } 1936 1937 InputKind DashX(Language::Unknown); 1938 if (const Arg *A = Args.getLastArg(OPT_x)) { 1939 StringRef XValue = A->getValue(); 1940 1941 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1942 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1943 bool Preprocessed = XValue.consume_back("-cpp-output"); 1944 bool ModuleMap = XValue.consume_back("-module-map"); 1945 IsHeaderFile = 1946 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1947 1948 // Principal languages. 1949 DashX = llvm::StringSwitch<InputKind>(XValue) 1950 .Case("c", Language::C) 1951 .Case("cl", Language::OpenCL) 1952 .Case("cuda", Language::CUDA) 1953 .Case("hip", Language::HIP) 1954 .Case("c++", Language::CXX) 1955 .Case("objective-c", Language::ObjC) 1956 .Case("objective-c++", Language::ObjCXX) 1957 .Case("renderscript", Language::RenderScript) 1958 .Default(Language::Unknown); 1959 1960 // "objc[++]-cpp-output" is an acceptable synonym for 1961 // "objective-c[++]-cpp-output". 1962 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1963 DashX = llvm::StringSwitch<InputKind>(XValue) 1964 .Case("objc", Language::ObjC) 1965 .Case("objc++", Language::ObjCXX) 1966 .Default(Language::Unknown); 1967 1968 // Some special cases cannot be combined with suffixes. 1969 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1970 DashX = llvm::StringSwitch<InputKind>(XValue) 1971 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 1972 .Case("assembler-with-cpp", Language::Asm) 1973 .Cases("ast", "pcm", 1974 InputKind(Language::Unknown, InputKind::Precompiled)) 1975 .Case("ir", Language::LLVM_IR) 1976 .Default(Language::Unknown); 1977 1978 if (DashX.isUnknown()) 1979 Diags.Report(diag::err_drv_invalid_value) 1980 << A->getAsString(Args) << A->getValue(); 1981 1982 if (Preprocessed) 1983 DashX = DashX.getPreprocessed(); 1984 if (ModuleMap) 1985 DashX = DashX.withFormat(InputKind::ModuleMap); 1986 } 1987 1988 // '-' is the default input if none is given. 1989 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1990 Opts.Inputs.clear(); 1991 if (Inputs.empty()) 1992 Inputs.push_back("-"); 1993 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1994 InputKind IK = DashX; 1995 if (IK.isUnknown()) { 1996 IK = FrontendOptions::getInputKindForExtension( 1997 StringRef(Inputs[i]).rsplit('.').second); 1998 // FIXME: Warn on this? 1999 if (IK.isUnknown()) 2000 IK = Language::C; 2001 // FIXME: Remove this hack. 2002 if (i == 0) 2003 DashX = IK; 2004 } 2005 2006 // The -emit-module action implicitly takes a module map. 2007 if (Opts.ProgramAction == frontend::GenerateModule && 2008 IK.getFormat() == InputKind::Source) 2009 IK = IK.withFormat(InputKind::ModuleMap); 2010 2011 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 2012 } 2013 2014 return DashX; 2015 } 2016 2017 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2018 void *MainAddr) { 2019 std::string ClangExecutable = 2020 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2021 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2022 } 2023 2024 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2025 const std::string &WorkingDir) { 2026 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 2027 Opts.Verbose = Args.hasArg(OPT_v); 2028 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2029 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2030 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2031 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2032 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2033 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 2034 2035 // Canonicalize -fmodules-cache-path before storing it. 2036 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2037 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2038 if (WorkingDir.empty()) 2039 llvm::sys::fs::make_absolute(P); 2040 else 2041 llvm::sys::fs::make_absolute(WorkingDir, P); 2042 } 2043 llvm::sys::path::remove_dots(P); 2044 Opts.ModuleCachePath = P.str(); 2045 2046 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 2047 // Only the -fmodule-file=<name>=<file> form. 2048 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2049 StringRef Val = A->getValue(); 2050 if (Val.find('=') != StringRef::npos) 2051 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 2052 } 2053 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2054 Opts.AddPrebuiltModulePath(A->getValue()); 2055 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2056 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2057 Opts.ModulesValidateDiagnosticOptions = 2058 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2059 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2060 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2061 Opts.ModuleCachePruneInterval = 2062 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2063 Opts.ModuleCachePruneAfter = 2064 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2065 Opts.ModulesValidateOncePerBuildSession = 2066 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2067 Opts.BuildSessionTimestamp = 2068 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2069 Opts.ModulesValidateSystemHeaders = 2070 Args.hasArg(OPT_fmodules_validate_system_headers); 2071 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2072 Opts.ModuleFormat = A->getValue(); 2073 2074 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2075 StringRef MacroDef = A->getValue(); 2076 Opts.ModulesIgnoreMacros.insert( 2077 llvm::CachedHashString(MacroDef.split('=').first)); 2078 } 2079 2080 // Add -I..., -F..., and -index-header-map options in order. 2081 bool IsIndexHeaderMap = false; 2082 bool IsSysrootSpecified = 2083 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2084 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2085 if (A->getOption().matches(OPT_index_header_map)) { 2086 // -index-header-map applies to the next -I or -F. 2087 IsIndexHeaderMap = true; 2088 continue; 2089 } 2090 2091 frontend::IncludeDirGroup Group = 2092 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2093 2094 bool IsFramework = A->getOption().matches(OPT_F); 2095 std::string Path = A->getValue(); 2096 2097 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2098 SmallString<32> Buffer; 2099 llvm::sys::path::append(Buffer, Opts.Sysroot, 2100 llvm::StringRef(A->getValue()).substr(1)); 2101 Path = Buffer.str(); 2102 } 2103 2104 Opts.AddPath(Path, Group, IsFramework, 2105 /*IgnoreSysroot*/ true); 2106 IsIndexHeaderMap = false; 2107 } 2108 2109 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2110 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2111 for (const auto *A : 2112 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2113 if (A->getOption().matches(OPT_iprefix)) 2114 Prefix = A->getValue(); 2115 else if (A->getOption().matches(OPT_iwithprefix)) 2116 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2117 else 2118 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2119 } 2120 2121 for (const auto *A : Args.filtered(OPT_idirafter)) 2122 Opts.AddPath(A->getValue(), frontend::After, false, true); 2123 for (const auto *A : Args.filtered(OPT_iquote)) 2124 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2125 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2126 Opts.AddPath(A->getValue(), frontend::System, false, 2127 !A->getOption().matches(OPT_iwithsysroot)); 2128 for (const auto *A : Args.filtered(OPT_iframework)) 2129 Opts.AddPath(A->getValue(), frontend::System, true, true); 2130 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2131 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2132 /*IgnoreSysRoot=*/false); 2133 2134 // Add the paths for the various language specific isystem flags. 2135 for (const auto *A : Args.filtered(OPT_c_isystem)) 2136 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2137 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2138 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2139 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2140 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2141 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2142 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2143 2144 // Add the internal paths from a driver that detects standard include paths. 2145 for (const auto *A : 2146 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2147 frontend::IncludeDirGroup Group = frontend::System; 2148 if (A->getOption().matches(OPT_internal_externc_isystem)) 2149 Group = frontend::ExternCSystem; 2150 Opts.AddPath(A->getValue(), Group, false, true); 2151 } 2152 2153 // Add the path prefixes which are implicitly treated as being system headers. 2154 for (const auto *A : 2155 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2156 Opts.AddSystemHeaderPrefix( 2157 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2158 2159 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2160 Opts.AddVFSOverlayFile(A->getValue()); 2161 } 2162 2163 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2164 const llvm::Triple &T, 2165 PreprocessorOptions &PPOpts, 2166 LangStandard::Kind LangStd) { 2167 // Set some properties which depend solely on the input kind; it would be nice 2168 // to move these to the language standard, and have the driver resolve the 2169 // input kind + language standard. 2170 // 2171 // FIXME: Perhaps a better model would be for a single source file to have 2172 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2173 // simultaneously active? 2174 if (IK.getLanguage() == Language::Asm) { 2175 Opts.AsmPreprocessor = 1; 2176 } else if (IK.isObjectiveC()) { 2177 Opts.ObjC = 1; 2178 } 2179 2180 if (LangStd == LangStandard::lang_unspecified) { 2181 // Based on the base language, pick one. 2182 switch (IK.getLanguage()) { 2183 case Language::Unknown: 2184 case Language::LLVM_IR: 2185 llvm_unreachable("Invalid input kind!"); 2186 case Language::OpenCL: 2187 LangStd = LangStandard::lang_opencl10; 2188 break; 2189 case Language::CUDA: 2190 LangStd = LangStandard::lang_cuda; 2191 break; 2192 case Language::Asm: 2193 case Language::C: 2194 #if defined(CLANG_DEFAULT_STD_C) 2195 LangStd = CLANG_DEFAULT_STD_C; 2196 #else 2197 // The PS4 uses C99 as the default C standard. 2198 if (T.isPS4()) 2199 LangStd = LangStandard::lang_gnu99; 2200 else 2201 LangStd = LangStandard::lang_gnu11; 2202 #endif 2203 break; 2204 case Language::ObjC: 2205 #if defined(CLANG_DEFAULT_STD_C) 2206 LangStd = CLANG_DEFAULT_STD_C; 2207 #else 2208 LangStd = LangStandard::lang_gnu11; 2209 #endif 2210 break; 2211 case Language::CXX: 2212 case Language::ObjCXX: 2213 #if defined(CLANG_DEFAULT_STD_CXX) 2214 LangStd = CLANG_DEFAULT_STD_CXX; 2215 #else 2216 LangStd = LangStandard::lang_gnucxx14; 2217 #endif 2218 break; 2219 case Language::RenderScript: 2220 LangStd = LangStandard::lang_c99; 2221 break; 2222 case Language::HIP: 2223 LangStd = LangStandard::lang_hip; 2224 break; 2225 } 2226 } 2227 2228 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2229 Opts.LineComment = Std.hasLineComments(); 2230 Opts.C99 = Std.isC99(); 2231 Opts.C11 = Std.isC11(); 2232 Opts.C17 = Std.isC17(); 2233 Opts.C2x = Std.isC2x(); 2234 Opts.CPlusPlus = Std.isCPlusPlus(); 2235 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2236 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2237 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2238 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2239 Opts.Digraphs = Std.hasDigraphs(); 2240 Opts.GNUMode = Std.isGNUMode(); 2241 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2242 Opts.HexFloats = Std.hasHexFloats(); 2243 Opts.ImplicitInt = Std.hasImplicitInt(); 2244 2245 // Set OpenCL Version. 2246 Opts.OpenCL = Std.isOpenCL(); 2247 if (LangStd == LangStandard::lang_opencl10) 2248 Opts.OpenCLVersion = 100; 2249 else if (LangStd == LangStandard::lang_opencl11) 2250 Opts.OpenCLVersion = 110; 2251 else if (LangStd == LangStandard::lang_opencl12) 2252 Opts.OpenCLVersion = 120; 2253 else if (LangStd == LangStandard::lang_opencl20) 2254 Opts.OpenCLVersion = 200; 2255 else if (LangStd == LangStandard::lang_openclcpp) 2256 Opts.OpenCLCPlusPlusVersion = 100; 2257 2258 // OpenCL has some additional defaults. 2259 if (Opts.OpenCL) { 2260 Opts.AltiVec = 0; 2261 Opts.ZVector = 0; 2262 Opts.LaxVectorConversions = 0; 2263 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2264 Opts.NativeHalfType = 1; 2265 Opts.NativeHalfArgsAndReturns = 1; 2266 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2267 2268 // Include default header file for OpenCL. 2269 if (Opts.IncludeDefaultHeader) { 2270 if (Opts.DeclareOpenCLBuiltins) { 2271 // Only include base header file for builtin types and constants. 2272 PPOpts.Includes.push_back("opencl-c-base.h"); 2273 } else { 2274 PPOpts.Includes.push_back("opencl-c.h"); 2275 } 2276 } 2277 } 2278 2279 Opts.HIP = IK.getLanguage() == Language::HIP; 2280 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2281 if (Opts.CUDA) 2282 // Set default FP_CONTRACT to FAST. 2283 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2284 2285 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2286 if (Opts.RenderScript) { 2287 Opts.NativeHalfType = 1; 2288 Opts.NativeHalfArgsAndReturns = 1; 2289 } 2290 2291 // OpenCL and C++ both have bool, true, false keywords. 2292 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2293 2294 // OpenCL has half keyword 2295 Opts.Half = Opts.OpenCL; 2296 2297 // C++ has wchar_t keyword. 2298 Opts.WChar = Opts.CPlusPlus; 2299 2300 Opts.GNUKeywords = Opts.GNUMode; 2301 Opts.CXXOperatorNames = Opts.CPlusPlus; 2302 2303 Opts.AlignedAllocation = Opts.CPlusPlus17; 2304 2305 Opts.DollarIdents = !Opts.AsmPreprocessor; 2306 2307 // Enable [[]] attributes in C++11 and C2x by default. 2308 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2309 } 2310 2311 /// Attempt to parse a visibility value out of the given argument. 2312 static Visibility parseVisibility(Arg *arg, ArgList &args, 2313 DiagnosticsEngine &diags) { 2314 StringRef value = arg->getValue(); 2315 if (value == "default") { 2316 return DefaultVisibility; 2317 } else if (value == "hidden" || value == "internal") { 2318 return HiddenVisibility; 2319 } else if (value == "protected") { 2320 // FIXME: diagnose if target does not support protected visibility 2321 return ProtectedVisibility; 2322 } 2323 2324 diags.Report(diag::err_drv_invalid_value) 2325 << arg->getAsString(args) << value; 2326 return DefaultVisibility; 2327 } 2328 2329 /// Check if input file kind and language standard are compatible. 2330 static bool IsInputCompatibleWithStandard(InputKind IK, 2331 const LangStandard &S) { 2332 switch (IK.getLanguage()) { 2333 case Language::Unknown: 2334 case Language::LLVM_IR: 2335 llvm_unreachable("should not parse language flags for this input"); 2336 2337 case Language::C: 2338 case Language::ObjC: 2339 case Language::RenderScript: 2340 return S.getLanguage() == Language::C; 2341 2342 case Language::OpenCL: 2343 return S.getLanguage() == Language::OpenCL; 2344 2345 case Language::CXX: 2346 case Language::ObjCXX: 2347 return S.getLanguage() == Language::CXX; 2348 2349 case Language::CUDA: 2350 // FIXME: What -std= values should be permitted for CUDA compilations? 2351 return S.getLanguage() == Language::CUDA || 2352 S.getLanguage() == Language::CXX; 2353 2354 case Language::HIP: 2355 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2356 2357 case Language::Asm: 2358 // Accept (and ignore) all -std= values. 2359 // FIXME: The -std= value is not ignored; it affects the tokenization 2360 // and preprocessing rules if we're preprocessing this asm input. 2361 return true; 2362 } 2363 2364 llvm_unreachable("unexpected input language"); 2365 } 2366 2367 /// Get language name for given input kind. 2368 static const StringRef GetInputKindName(InputKind IK) { 2369 switch (IK.getLanguage()) { 2370 case Language::C: 2371 return "C"; 2372 case Language::ObjC: 2373 return "Objective-C"; 2374 case Language::CXX: 2375 return "C++"; 2376 case Language::ObjCXX: 2377 return "Objective-C++"; 2378 case Language::OpenCL: 2379 return "OpenCL"; 2380 case Language::CUDA: 2381 return "CUDA"; 2382 case Language::RenderScript: 2383 return "RenderScript"; 2384 case Language::HIP: 2385 return "HIP"; 2386 2387 case Language::Asm: 2388 return "Asm"; 2389 case Language::LLVM_IR: 2390 return "LLVM IR"; 2391 2392 case Language::Unknown: 2393 break; 2394 } 2395 llvm_unreachable("unknown input language"); 2396 } 2397 2398 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2399 const TargetOptions &TargetOpts, 2400 PreprocessorOptions &PPOpts, 2401 DiagnosticsEngine &Diags) { 2402 // FIXME: Cleanup per-file based stuff. 2403 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2404 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2405 LangStd = LangStandard::getLangKind(A->getValue()); 2406 if (LangStd == LangStandard::lang_unspecified) { 2407 Diags.Report(diag::err_drv_invalid_value) 2408 << A->getAsString(Args) << A->getValue(); 2409 // Report supported standards with short description. 2410 for (unsigned KindValue = 0; 2411 KindValue != LangStandard::lang_unspecified; 2412 ++KindValue) { 2413 const LangStandard &Std = LangStandard::getLangStandardForKind( 2414 static_cast<LangStandard::Kind>(KindValue)); 2415 if (IsInputCompatibleWithStandard(IK, Std)) { 2416 auto Diag = Diags.Report(diag::note_drv_use_standard); 2417 Diag << Std.getName() << Std.getDescription(); 2418 unsigned NumAliases = 0; 2419 #define LANGSTANDARD(id, name, lang, desc, features) 2420 #define LANGSTANDARD_ALIAS(id, alias) \ 2421 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2422 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2423 #include "clang/Basic/LangStandards.def" 2424 Diag << NumAliases; 2425 #define LANGSTANDARD(id, name, lang, desc, features) 2426 #define LANGSTANDARD_ALIAS(id, alias) \ 2427 if (KindValue == LangStandard::lang_##id) Diag << alias; 2428 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2429 #include "clang/Basic/LangStandards.def" 2430 } 2431 } 2432 } else { 2433 // Valid standard, check to make sure language and standard are 2434 // compatible. 2435 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2436 if (!IsInputCompatibleWithStandard(IK, Std)) { 2437 Diags.Report(diag::err_drv_argument_not_allowed_with) 2438 << A->getAsString(Args) << GetInputKindName(IK); 2439 } 2440 } 2441 } 2442 2443 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2444 Opts.DllExportInlines = false; 2445 2446 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2447 StringRef Name = A->getValue(); 2448 if (Name == "full" || Name == "branch") { 2449 Opts.CFProtectionBranch = 1; 2450 } 2451 } 2452 // -cl-std only applies for OpenCL language standards. 2453 // Override the -std option in this case. 2454 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2455 LangStandard::Kind OpenCLLangStd 2456 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2457 .Cases("cl", "CL", LangStandard::lang_opencl10) 2458 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2459 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2460 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2461 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2462 .Default(LangStandard::lang_unspecified); 2463 2464 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2465 Diags.Report(diag::err_drv_invalid_value) 2466 << A->getAsString(Args) << A->getValue(); 2467 } 2468 else 2469 LangStd = OpenCLLangStd; 2470 } 2471 2472 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2473 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2474 2475 llvm::Triple T(TargetOpts.Triple); 2476 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2477 2478 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2479 // This option should be deprecated for CL > 1.0 because 2480 // this option was added for compatibility with OpenCL 1.0. 2481 if (Args.getLastArg(OPT_cl_strict_aliasing) 2482 && Opts.OpenCLVersion > 100) { 2483 Diags.Report(diag::warn_option_invalid_ocl_version) 2484 << Opts.getOpenCLVersionTuple().getAsString() 2485 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2486 } 2487 2488 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2489 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2490 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2491 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2492 // name, as it doesn't seem a useful distinction. 2493 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2494 Opts.GNUKeywords); 2495 2496 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2497 2498 if (Args.hasArg(OPT_fno_operator_names)) 2499 Opts.CXXOperatorNames = 0; 2500 2501 if (Args.hasArg(OPT_fcuda_is_device)) 2502 Opts.CUDAIsDevice = 1; 2503 2504 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2505 Opts.CUDAAllowVariadicFunctions = 1; 2506 2507 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2508 Opts.CUDAHostDeviceConstexpr = 0; 2509 2510 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2511 Opts.CUDADeviceApproxTranscendentals = 1; 2512 2513 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2514 2515 if (Opts.ObjC) { 2516 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2517 StringRef value = arg->getValue(); 2518 if (Opts.ObjCRuntime.tryParse(value)) 2519 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2520 } 2521 2522 if (Args.hasArg(OPT_fobjc_gc_only)) 2523 Opts.setGC(LangOptions::GCOnly); 2524 else if (Args.hasArg(OPT_fobjc_gc)) 2525 Opts.setGC(LangOptions::HybridGC); 2526 else if (Args.hasArg(OPT_fobjc_arc)) { 2527 Opts.ObjCAutoRefCount = 1; 2528 if (!Opts.ObjCRuntime.allowsARC()) 2529 Diags.Report(diag::err_arc_unsupported_on_runtime); 2530 } 2531 2532 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2533 // whether the feature is actually enabled. This is predominantly 2534 // determined by -fobjc-runtime, but we allow it to be overridden 2535 // from the command line for testing purposes. 2536 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2537 Opts.ObjCWeakRuntime = 1; 2538 else 2539 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2540 2541 // ObjCWeak determines whether __weak is actually enabled. 2542 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2543 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2544 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2545 assert(!Opts.ObjCWeak); 2546 } else if (Opts.getGC() != LangOptions::NonGC) { 2547 Diags.Report(diag::err_objc_weak_with_gc); 2548 } else if (!Opts.ObjCWeakRuntime) { 2549 Diags.Report(diag::err_objc_weak_unsupported); 2550 } else { 2551 Opts.ObjCWeak = 1; 2552 } 2553 } else if (Opts.ObjCAutoRefCount) { 2554 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2555 } 2556 2557 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2558 Opts.ObjCInferRelatedResultType = 0; 2559 2560 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2561 Opts.ObjCSubscriptingLegacyRuntime = 2562 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2563 } 2564 2565 if (Args.hasArg(OPT_fgnu89_inline)) { 2566 if (Opts.CPlusPlus) 2567 Diags.Report(diag::err_drv_argument_not_allowed_with) 2568 << "-fgnu89-inline" << GetInputKindName(IK); 2569 else 2570 Opts.GNUInline = 1; 2571 } 2572 2573 if (Args.hasArg(OPT_fapple_kext)) { 2574 if (!Opts.CPlusPlus) 2575 Diags.Report(diag::warn_c_kext); 2576 else 2577 Opts.AppleKext = 1; 2578 } 2579 2580 if (Args.hasArg(OPT_print_ivar_layout)) 2581 Opts.ObjCGCBitmapPrint = 1; 2582 2583 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2584 Opts.NoConstantCFStrings = 1; 2585 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2586 Opts.CFRuntime = 2587 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2588 .Cases("unspecified", "standalone", "objc", 2589 LangOptions::CoreFoundationABI::ObjectiveC) 2590 .Cases("swift", "swift-5.0", 2591 LangOptions::CoreFoundationABI::Swift5_0) 2592 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2593 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2594 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2595 2596 if (Args.hasArg(OPT_fzvector)) 2597 Opts.ZVector = 1; 2598 2599 if (Args.hasArg(OPT_pthread)) 2600 Opts.POSIXThreads = 1; 2601 2602 // The value-visibility mode defaults to "default". 2603 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2604 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2605 } else { 2606 Opts.setValueVisibilityMode(DefaultVisibility); 2607 } 2608 2609 // The type-visibility mode defaults to the value-visibility mode. 2610 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2611 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2612 } else { 2613 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2614 } 2615 2616 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2617 Opts.InlineVisibilityHidden = 1; 2618 2619 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2620 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2621 2622 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2623 Opts.SetVisibilityForExternDecls = 1; 2624 2625 if (Args.hasArg(OPT_ftrapv)) { 2626 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2627 // Set the handler, if one is specified. 2628 Opts.OverflowHandler = 2629 Args.getLastArgValue(OPT_ftrapv_handler); 2630 } 2631 else if (Args.hasArg(OPT_fwrapv)) 2632 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2633 2634 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2635 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2636 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2637 Opts.MSCompatibilityVersion = 0; 2638 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2639 VersionTuple VT; 2640 if (VT.tryParse(A->getValue())) 2641 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2642 << A->getValue(); 2643 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2644 VT.getMinor().getValueOr(0) * 100000 + 2645 VT.getSubminor().getValueOr(0); 2646 } 2647 2648 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2649 // is specified, or -std is set to a conforming mode. 2650 // Trigraphs are disabled by default in c++1z onwards. 2651 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2652 Opts.Trigraphs = 2653 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2654 2655 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2656 OPT_fno_dollars_in_identifiers, 2657 Opts.DollarIdents); 2658 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2659 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2660 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2661 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2662 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2663 Opts.ConstStrings); 2664 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2665 Opts.LaxVectorConversions = 0; 2666 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2667 Opts.ThreadsafeStatics = 0; 2668 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2669 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2670 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2671 2672 // -ffixed-point 2673 Opts.FixedPoint = 2674 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2675 !Opts.CPlusPlus; 2676 Opts.PaddingOnUnsignedFixedPoint = 2677 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2678 OPT_fno_padding_on_unsigned_fixed_point, 2679 /*Default=*/false) && 2680 Opts.FixedPoint; 2681 2682 // Handle exception personalities 2683 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2684 options::OPT_fseh_exceptions, 2685 options::OPT_fdwarf_exceptions); 2686 if (A) { 2687 const Option &Opt = A->getOption(); 2688 llvm::Triple T(TargetOpts.Triple); 2689 if (T.isWindowsMSVCEnvironment()) 2690 Diags.Report(diag::err_fe_invalid_exception_model) 2691 << Opt.getName() << T.str(); 2692 2693 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2694 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2695 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2696 } 2697 2698 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2699 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2700 2701 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2702 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2703 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2704 && Opts.OpenCLVersion == 200); 2705 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2706 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2707 2708 Opts.DoubleSquareBracketAttributes = 2709 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2710 OPT_fno_double_square_bracket_attributes, 2711 Opts.DoubleSquareBracketAttributes); 2712 2713 Opts.CPlusPlusModules = Opts.CPlusPlus2a; 2714 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2715 Opts.Modules = 2716 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2717 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2718 Opts.ModulesDeclUse = 2719 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2720 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2721 // enter a different module (eg, when building a header unit). 2722 Opts.ModulesLocalVisibility = 2723 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2724 Opts.CPlusPlusModules; 2725 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2726 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2727 Opts.ModulesSearchAll = Opts.Modules && 2728 !Args.hasArg(OPT_fno_modules_search_all) && 2729 Args.hasArg(OPT_fmodules_search_all); 2730 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2731 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2732 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2733 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2734 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2735 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2736 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2737 .Case("char", 1) 2738 .Case("short", 2) 2739 .Case("int", 4) 2740 .Default(0); 2741 if (Opts.WCharSize == 0) 2742 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2743 } 2744 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2745 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2746 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2747 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2748 if (!Opts.NoBuiltin) 2749 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2750 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2751 Opts.RelaxedTemplateTemplateArgs = 2752 Args.hasArg(OPT_frelaxed_template_template_args); 2753 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2754 Opts.AlignedAllocation = 2755 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2756 Opts.AlignedAllocation); 2757 Opts.AlignedAllocationUnavailable = 2758 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2759 Opts.NewAlignOverride = 2760 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2761 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2762 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2763 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2764 << A->getValue(); 2765 Opts.NewAlignOverride = 0; 2766 } 2767 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2768 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2769 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2770 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2771 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2772 Opts.InstantiationDepth = 2773 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2774 Opts.ArrowDepth = 2775 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2776 Opts.ConstexprCallDepth = 2777 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2778 Opts.ConstexprStepLimit = 2779 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2780 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2781 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2782 Opts.NumLargeByValueCopy = 2783 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2784 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2785 Opts.ObjCConstantStringClass = 2786 Args.getLastArgValue(OPT_fconstant_string_class); 2787 Opts.ObjCDefaultSynthProperties = 2788 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2789 Opts.EncodeExtendedBlockSig = 2790 Args.hasArg(OPT_fencode_extended_block_signature); 2791 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2792 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2793 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2794 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2795 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2796 ? 128 2797 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2798 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2799 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2800 Opts.ROPI = Args.hasArg(OPT_fropi); 2801 Opts.RWPI = Args.hasArg(OPT_frwpi); 2802 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2803 Opts.Static = Args.hasArg(OPT_static_define); 2804 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2805 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2806 || Args.hasArg(OPT_fdump_record_layouts); 2807 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2808 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2809 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2810 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2811 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2812 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2813 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2814 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2815 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2816 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2817 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2818 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2819 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ); 2820 Opts.CurrentModule = Opts.ModuleName; 2821 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2822 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2823 llvm::sort(Opts.ModuleFeatures); 2824 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2825 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2826 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2827 // is enabled. 2828 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2829 | Opts.NativeHalfArgsAndReturns; 2830 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2831 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2832 2833 // __declspec is enabled by default for the PS4 by the driver, and also 2834 // enabled for Microsoft Extensions or Borland Extensions, here. 2835 // 2836 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2837 // CUDA extension. However, it is required for supporting 2838 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2839 // been rewritten in terms of something more generic, remove the Opts.CUDA 2840 // term here. 2841 Opts.DeclSpecKeyword = 2842 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2843 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2844 2845 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2846 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2847 .Case("target", LangOptions::ASMM_Target) 2848 .Case("no", LangOptions::ASMM_Off) 2849 .Case("yes", LangOptions::ASMM_On) 2850 .Default(255)) { 2851 default: 2852 Diags.Report(diag::err_drv_invalid_value) 2853 << "-faddress-space-map-mangling=" << A->getValue(); 2854 break; 2855 case LangOptions::ASMM_Target: 2856 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2857 break; 2858 case LangOptions::ASMM_On: 2859 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2860 break; 2861 case LangOptions::ASMM_Off: 2862 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2863 break; 2864 } 2865 } 2866 2867 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2868 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2869 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2870 A->getValue()) 2871 .Case("single", 2872 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2873 .Case("multiple", 2874 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2875 .Case("virtual", 2876 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2877 .Default(LangOptions::PPTMK_BestCase); 2878 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2879 Diags.Report(diag::err_drv_invalid_value) 2880 << "-fms-memptr-rep=" << A->getValue(); 2881 2882 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2883 } 2884 2885 // Check for MS default calling conventions being specified. 2886 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2887 LangOptions::DefaultCallingConvention DefaultCC = 2888 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2889 .Case("cdecl", LangOptions::DCC_CDecl) 2890 .Case("fastcall", LangOptions::DCC_FastCall) 2891 .Case("stdcall", LangOptions::DCC_StdCall) 2892 .Case("vectorcall", LangOptions::DCC_VectorCall) 2893 .Case("regcall", LangOptions::DCC_RegCall) 2894 .Default(LangOptions::DCC_None); 2895 if (DefaultCC == LangOptions::DCC_None) 2896 Diags.Report(diag::err_drv_invalid_value) 2897 << "-fdefault-calling-conv=" << A->getValue(); 2898 2899 llvm::Triple T(TargetOpts.Triple); 2900 llvm::Triple::ArchType Arch = T.getArch(); 2901 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2902 DefaultCC == LangOptions::DCC_StdCall) && 2903 Arch != llvm::Triple::x86; 2904 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2905 DefaultCC == LangOptions::DCC_RegCall) && 2906 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2907 if (emitError) 2908 Diags.Report(diag::err_drv_argument_not_allowed_with) 2909 << A->getSpelling() << T.getTriple(); 2910 else 2911 Opts.setDefaultCallingConv(DefaultCC); 2912 } 2913 2914 // -mrtd option 2915 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2916 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2917 Diags.Report(diag::err_drv_argument_not_allowed_with) 2918 << A->getSpelling() << "-fdefault-calling-conv"; 2919 else { 2920 llvm::Triple T(TargetOpts.Triple); 2921 if (T.getArch() != llvm::Triple::x86) 2922 Diags.Report(diag::err_drv_argument_not_allowed_with) 2923 << A->getSpelling() << T.getTriple(); 2924 else 2925 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2926 } 2927 } 2928 2929 // Check if -fopenmp is specified and set default version to 4.5. 2930 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 45 : 0; 2931 // Check if -fopenmp-simd is specified. 2932 bool IsSimdSpecified = 2933 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2934 /*Default=*/false); 2935 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2936 Opts.OpenMPUseTLS = 2937 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2938 Opts.OpenMPIsDevice = 2939 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2940 bool IsTargetSpecified = 2941 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2942 2943 if (Opts.OpenMP || Opts.OpenMPSimd) { 2944 if (int Version = getLastArgIntValue( 2945 Args, OPT_fopenmp_version_EQ, 2946 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 2947 Opts.OpenMP = Version; 2948 else if (IsSimdSpecified || IsTargetSpecified) 2949 Opts.OpenMP = 45; 2950 // Provide diagnostic when a given target is not expected to be an OpenMP 2951 // device or host. 2952 if (!Opts.OpenMPIsDevice) { 2953 switch (T.getArch()) { 2954 default: 2955 break; 2956 // Add unsupported host targets here: 2957 case llvm::Triple::nvptx: 2958 case llvm::Triple::nvptx64: 2959 Diags.Report(diag::err_drv_omp_host_target_not_supported) 2960 << TargetOpts.Triple; 2961 break; 2962 } 2963 } 2964 } 2965 2966 // Set the flag to prevent the implementation from emitting device exception 2967 // handling code for those requiring so. 2968 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 2969 Opts.Exceptions = 0; 2970 Opts.CXXExceptions = 0; 2971 } 2972 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2973 Opts.OpenMPCUDANumSMs = 2974 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 2975 Opts.OpenMPCUDANumSMs, Diags); 2976 Opts.OpenMPCUDABlocksPerSM = 2977 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 2978 Opts.OpenMPCUDABlocksPerSM, Diags); 2979 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 2980 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 2981 Opts.OpenMPCUDAReductionBufNum, Diags); 2982 } 2983 2984 // Prevent auto-widening the representation of loop counters during an 2985 // OpenMP collapse clause. 2986 Opts.OpenMPOptimisticCollapse = 2987 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 2988 2989 // Get the OpenMP target triples if any. 2990 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2991 2992 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2993 llvm::Triple TT(A->getValue(i)); 2994 2995 if (TT.getArch() == llvm::Triple::UnknownArch || 2996 !(TT.getArch() == llvm::Triple::ppc || 2997 TT.getArch() == llvm::Triple::ppc64 || 2998 TT.getArch() == llvm::Triple::ppc64le || 2999 TT.getArch() == llvm::Triple::nvptx || 3000 TT.getArch() == llvm::Triple::nvptx64 || 3001 TT.getArch() == llvm::Triple::x86 || 3002 TT.getArch() == llvm::Triple::x86_64)) 3003 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3004 else 3005 Opts.OMPTargetTriples.push_back(TT); 3006 } 3007 } 3008 3009 // Get OpenMP host file path if any and report if a non existent file is 3010 // found 3011 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3012 Opts.OMPHostIRFile = A->getValue(); 3013 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3014 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3015 << Opts.OMPHostIRFile; 3016 } 3017 3018 Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device); 3019 3020 // Set CUDA mode for OpenMP target NVPTX if specified in options 3021 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 3022 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3023 3024 // Set CUDA mode for OpenMP target NVPTX if specified in options 3025 Opts.OpenMPCUDAForceFullRuntime = 3026 Opts.OpenMPIsDevice && T.isNVPTX() && 3027 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3028 3029 // Record whether the __DEPRECATED define was requested. 3030 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3031 OPT_fno_deprecated_macro, 3032 Opts.Deprecated); 3033 3034 // FIXME: Eliminate this dependency. 3035 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3036 OptSize = getOptimizationLevelSize(Args); 3037 Opts.Optimize = Opt != 0; 3038 Opts.OptimizeSize = OptSize != 0; 3039 3040 // This is the __NO_INLINE__ define, which just depends on things like the 3041 // optimization level and -fno-inline, not actually whether the backend has 3042 // inlining enabled. 3043 Opts.NoInlineDefine = !Opts.Optimize; 3044 if (Arg *InlineArg = Args.getLastArg( 3045 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3046 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3047 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3048 Opts.NoInlineDefine = true; 3049 3050 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 3051 Args.hasArg(OPT_cl_fast_relaxed_math); 3052 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3053 Args.hasArg(OPT_cl_finite_math_only) || 3054 Args.hasArg(OPT_cl_fast_relaxed_math); 3055 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3056 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3057 Args.hasArg(OPT_cl_fast_relaxed_math); 3058 3059 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3060 StringRef Val = A->getValue(); 3061 if (Val == "fast") 3062 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 3063 else if (Val == "on") 3064 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 3065 else if (Val == "off") 3066 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 3067 else 3068 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3069 } 3070 3071 Opts.RetainCommentsFromSystemHeaders = 3072 Args.hasArg(OPT_fretain_comments_from_system_headers); 3073 3074 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3075 switch (SSP) { 3076 default: 3077 Diags.Report(diag::err_drv_invalid_value) 3078 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3079 break; 3080 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3081 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3082 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3083 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3084 } 3085 3086 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3087 StringRef Val = A->getValue(); 3088 if (Val == "uninitialized") 3089 Opts.setTrivialAutoVarInit( 3090 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3091 else if (Val == "zero") 3092 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3093 else if (Val == "pattern") 3094 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3095 else 3096 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3097 } 3098 3099 // Parse -fsanitize= arguments. 3100 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3101 Diags, Opts.Sanitize); 3102 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3103 Opts.SanitizeAddressFieldPadding = 3104 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3105 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3106 3107 // -fxray-instrument 3108 Opts.XRayInstrument = 3109 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 3110 3111 // -fxray-always-emit-customevents 3112 Opts.XRayAlwaysEmitCustomEvents = 3113 Args.hasFlag(OPT_fxray_always_emit_customevents, 3114 OPT_fnoxray_always_emit_customevents, false); 3115 3116 // -fxray-always-emit-typedevents 3117 Opts.XRayAlwaysEmitTypedEvents = 3118 Args.hasFlag(OPT_fxray_always_emit_typedevents, 3119 OPT_fnoxray_always_emit_customevents, false); 3120 3121 // -fxray-{always,never}-instrument= filenames. 3122 Opts.XRayAlwaysInstrumentFiles = 3123 Args.getAllArgValues(OPT_fxray_always_instrument); 3124 Opts.XRayNeverInstrumentFiles = 3125 Args.getAllArgValues(OPT_fxray_never_instrument); 3126 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3127 3128 // -fforce-emit-vtables 3129 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3130 3131 // -fallow-editor-placeholders 3132 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3133 3134 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3135 3136 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3137 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3138 3139 StringRef Ver = A->getValue(); 3140 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3141 unsigned Major, Minor = 0; 3142 3143 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3144 // y or y.0 (4 <= y <= current version). 3145 if (!VerParts.first.startswith("0") && 3146 !VerParts.first.getAsInteger(10, Major) && 3147 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3148 (Major == 3 ? VerParts.second.size() == 1 && 3149 !VerParts.second.getAsInteger(10, Minor) 3150 : VerParts.first.size() == Ver.size() || 3151 VerParts.second == "0")) { 3152 // Got a valid version number. 3153 if (Major == 3 && Minor <= 8) 3154 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3155 else if (Major <= 4) 3156 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3157 else if (Major <= 6) 3158 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3159 else if (Major <= 7) 3160 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3161 } else if (Ver != "latest") { 3162 Diags.Report(diag::err_drv_invalid_value) 3163 << A->getAsString(Args) << A->getValue(); 3164 } 3165 } 3166 3167 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3168 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3169 } 3170 3171 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3172 switch (Action) { 3173 case frontend::ASTDeclList: 3174 case frontend::ASTDump: 3175 case frontend::ASTPrint: 3176 case frontend::ASTView: 3177 case frontend::EmitAssembly: 3178 case frontend::EmitBC: 3179 case frontend::EmitHTML: 3180 case frontend::EmitLLVM: 3181 case frontend::EmitLLVMOnly: 3182 case frontend::EmitCodeGenOnly: 3183 case frontend::EmitObj: 3184 case frontend::FixIt: 3185 case frontend::GenerateModule: 3186 case frontend::GenerateModuleInterface: 3187 case frontend::GenerateHeaderModule: 3188 case frontend::GeneratePCH: 3189 case frontend::GenerateInterfaceYAMLExpV1: 3190 case frontend::GenerateInterfaceTBEExpV1: 3191 case frontend::GenerateInterfaceIfsExpV1: 3192 case frontend::ParseSyntaxOnly: 3193 case frontend::ModuleFileInfo: 3194 case frontend::VerifyPCH: 3195 case frontend::PluginAction: 3196 case frontend::RewriteObjC: 3197 case frontend::RewriteTest: 3198 case frontend::RunAnalysis: 3199 case frontend::TemplightDump: 3200 case frontend::MigrateSource: 3201 return false; 3202 3203 case frontend::DumpCompilerOptions: 3204 case frontend::DumpRawTokens: 3205 case frontend::DumpTokens: 3206 case frontend::InitOnly: 3207 case frontend::PrintPreamble: 3208 case frontend::PrintPreprocessedInput: 3209 case frontend::RewriteMacros: 3210 case frontend::RunPreprocessorOnly: 3211 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3212 return true; 3213 } 3214 llvm_unreachable("invalid frontend action"); 3215 } 3216 3217 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3218 DiagnosticsEngine &Diags, 3219 frontend::ActionKind Action) { 3220 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 3221 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3222 Args.hasArg(OPT_pch_through_hdrstop_use); 3223 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3224 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ); 3225 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3226 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3227 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3228 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3229 3230 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3231 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3232 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3233 3234 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3235 StringRef Value(A->getValue()); 3236 size_t Comma = Value.find(','); 3237 unsigned Bytes = 0; 3238 unsigned EndOfLine = 0; 3239 3240 if (Comma == StringRef::npos || 3241 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3242 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3243 Diags.Report(diag::err_drv_preamble_format); 3244 else { 3245 Opts.PrecompiledPreambleBytes.first = Bytes; 3246 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3247 } 3248 } 3249 3250 // Add the __CET__ macro if a CFProtection option is set. 3251 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3252 StringRef Name = A->getValue(); 3253 if (Name == "branch") 3254 Opts.addMacroDef("__CET__=1"); 3255 else if (Name == "return") 3256 Opts.addMacroDef("__CET__=2"); 3257 else if (Name == "full") 3258 Opts.addMacroDef("__CET__=3"); 3259 } 3260 3261 // Add macros from the command line. 3262 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3263 if (A->getOption().matches(OPT_D)) 3264 Opts.addMacroDef(A->getValue()); 3265 else 3266 Opts.addMacroUndef(A->getValue()); 3267 } 3268 3269 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3270 3271 // Add the ordered list of -includes. 3272 for (const auto *A : Args.filtered(OPT_include)) 3273 Opts.Includes.emplace_back(A->getValue()); 3274 3275 for (const auto *A : Args.filtered(OPT_chain_include)) 3276 Opts.ChainedIncludes.emplace_back(A->getValue()); 3277 3278 for (const auto *A : Args.filtered(OPT_remap_file)) { 3279 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3280 3281 if (Split.second.empty()) { 3282 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3283 continue; 3284 } 3285 3286 Opts.addRemappedFile(Split.first, Split.second); 3287 } 3288 3289 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3290 StringRef Name = A->getValue(); 3291 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3292 .Case("libc++", ARCXX_libcxx) 3293 .Case("libstdc++", ARCXX_libstdcxx) 3294 .Case("none", ARCXX_nolib) 3295 .Default(~0U); 3296 if (Library == ~0U) 3297 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3298 else 3299 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3300 } 3301 3302 // Always avoid lexing editor placeholders when we're just running the 3303 // preprocessor as we never want to emit the 3304 // "editor placeholder in source file" error in PP only mode. 3305 if (isStrictlyPreprocessorAction(Action)) 3306 Opts.LexEditorPlaceholders = false; 3307 } 3308 3309 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3310 ArgList &Args, 3311 frontend::ActionKind Action) { 3312 if (isStrictlyPreprocessorAction(Action)) 3313 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3314 else 3315 Opts.ShowCPP = 0; 3316 3317 Opts.ShowComments = Args.hasArg(OPT_C); 3318 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3319 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3320 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3321 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3322 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3323 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3324 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3325 } 3326 3327 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3328 DiagnosticsEngine &Diags) { 3329 Opts.CodeModel = getCodeModel(Args, Diags); 3330 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 3331 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3332 StringRef Value = A->getValue(); 3333 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3334 .Case("default", llvm::EABI::Default) 3335 .Case("4", llvm::EABI::EABI4) 3336 .Case("5", llvm::EABI::EABI5) 3337 .Case("gnu", llvm::EABI::GNU) 3338 .Default(llvm::EABI::Unknown); 3339 if (EABIVersion == llvm::EABI::Unknown) 3340 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3341 << Value; 3342 else 3343 Opts.EABIVersion = EABIVersion; 3344 } 3345 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 3346 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 3347 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3348 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 3349 Opts.Triple = Args.getLastArgValue(OPT_triple); 3350 // Use the default target triple if unspecified. 3351 if (Opts.Triple.empty()) 3352 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3353 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3354 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3355 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3356 Opts.NVPTXUseShortPointers = Args.hasFlag( 3357 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3358 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3359 llvm::VersionTuple Version; 3360 if (Version.tryParse(A->getValue())) 3361 Diags.Report(diag::err_drv_invalid_value) 3362 << A->getAsString(Args) << A->getValue(); 3363 else 3364 Opts.SDKVersion = Version; 3365 } 3366 } 3367 3368 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3369 const char *const *ArgBegin, 3370 const char *const *ArgEnd, 3371 DiagnosticsEngine &Diags) { 3372 bool Success = true; 3373 3374 // Parse the arguments. 3375 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 3376 const unsigned IncludedFlagsBitmask = options::CC1Option; 3377 unsigned MissingArgIndex, MissingArgCount; 3378 InputArgList Args = 3379 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 3380 MissingArgCount, IncludedFlagsBitmask); 3381 LangOptions &LangOpts = *Res.getLangOpts(); 3382 3383 // Check for missing argument error. 3384 if (MissingArgCount) { 3385 Diags.Report(diag::err_drv_missing_argument) 3386 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3387 Success = false; 3388 } 3389 3390 // Issue errors on unknown arguments. 3391 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3392 auto ArgString = A->getAsString(Args); 3393 std::string Nearest; 3394 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3395 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3396 else 3397 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3398 << ArgString << Nearest; 3399 Success = false; 3400 } 3401 3402 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3403 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3404 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3405 Success &= 3406 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3407 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3408 ParseCommentArgs(LangOpts.CommentOpts, Args); 3409 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3410 // FIXME: We shouldn't have to pass the DashX option around here 3411 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3412 LangOpts.IsHeaderFile); 3413 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3414 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3415 Res.getTargetOpts(), Res.getFrontendOpts()); 3416 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3417 Res.getFileSystemOpts().WorkingDir); 3418 llvm::Triple T(Res.getTargetOpts().Triple); 3419 if (DashX.getFormat() == InputKind::Precompiled || 3420 DashX.getLanguage() == Language::LLVM_IR) { 3421 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3422 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3423 // what the input type is. 3424 if (Args.hasArg(OPT_fobjc_arc)) 3425 LangOpts.ObjCAutoRefCount = 1; 3426 // PIClevel and PIELevel are needed during code generation and this should be 3427 // set regardless of the input type. 3428 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3429 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3430 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3431 Diags, LangOpts.Sanitize); 3432 } else { 3433 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3434 // FIXME: Should we really be calling this for an Language::Asm input? 3435 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3436 Res.getPreprocessorOpts(), Diags); 3437 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3438 LangOpts.ObjCExceptions = 1; 3439 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3440 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3441 // preprocessed input as we don't expect it to be used with -std=libc++ 3442 // anyway. 3443 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3444 } 3445 } 3446 3447 LangOpts.FunctionAlignment = 3448 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3449 3450 if (LangOpts.CUDA) { 3451 // During CUDA device-side compilation, the aux triple is the 3452 // triple used for host compilation. 3453 if (LangOpts.CUDAIsDevice) 3454 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3455 } 3456 3457 // Set the triple of the host for OpenMP device compile. 3458 if (LangOpts.OpenMPIsDevice) 3459 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3460 3461 // FIXME: Override value name discarding when asan or msan is used because the 3462 // backend passes depend on the name of the alloca in order to print out 3463 // names. 3464 Res.getCodeGenOpts().DiscardValueNames &= 3465 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3466 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3467 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3468 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3469 3470 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3471 Res.getFrontendOpts().ProgramAction); 3472 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3473 Res.getFrontendOpts().ProgramAction); 3474 3475 // Turn on -Wspir-compat for SPIR target. 3476 if (T.isSPIR()) 3477 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3478 3479 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3480 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3481 !Res.getLangOpts()->Sanitize.empty()) { 3482 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3483 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3484 } 3485 return Success; 3486 } 3487 3488 std::string CompilerInvocation::getModuleHash() const { 3489 // Note: For QoI reasons, the things we use as a hash here should all be 3490 // dumped via the -module-info flag. 3491 using llvm::hash_code; 3492 using llvm::hash_value; 3493 using llvm::hash_combine; 3494 3495 // Start the signature with the compiler version. 3496 // FIXME: We'd rather use something more cryptographically sound than 3497 // CityHash, but this will do for now. 3498 hash_code code = hash_value(getClangFullRepositoryVersion()); 3499 3500 // Extend the signature with the language options 3501 #define LANGOPT(Name, Bits, Default, Description) \ 3502 code = hash_combine(code, LangOpts->Name); 3503 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3504 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3505 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3506 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3507 #include "clang/Basic/LangOptions.def" 3508 3509 for (StringRef Feature : LangOpts->ModuleFeatures) 3510 code = hash_combine(code, Feature); 3511 3512 // Extend the signature with the target options. 3513 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3514 TargetOpts->ABI); 3515 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3516 code = hash_combine(code, FeatureAsWritten); 3517 3518 // Extend the signature with preprocessor options. 3519 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3520 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3521 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3522 3523 for (const auto &I : getPreprocessorOpts().Macros) { 3524 // If we're supposed to ignore this macro for the purposes of modules, 3525 // don't put it into the hash. 3526 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3527 // Check whether we're ignoring this macro. 3528 StringRef MacroDef = I.first; 3529 if (hsOpts.ModulesIgnoreMacros.count( 3530 llvm::CachedHashString(MacroDef.split('=').first))) 3531 continue; 3532 } 3533 3534 code = hash_combine(code, I.first, I.second); 3535 } 3536 3537 // Extend the signature with the sysroot and other header search options. 3538 code = hash_combine(code, hsOpts.Sysroot, 3539 hsOpts.ModuleFormat, 3540 hsOpts.UseDebugInfo, 3541 hsOpts.UseBuiltinIncludes, 3542 hsOpts.UseStandardSystemIncludes, 3543 hsOpts.UseStandardCXXIncludes, 3544 hsOpts.UseLibcxx, 3545 hsOpts.ModulesValidateDiagnosticOptions); 3546 code = hash_combine(code, hsOpts.ResourceDir); 3547 3548 // Extend the signature with the user build path. 3549 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3550 3551 // Extend the signature with the module file extensions. 3552 const FrontendOptions &frontendOpts = getFrontendOpts(); 3553 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3554 code = ext->hashExtension(code); 3555 } 3556 3557 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3558 // affects the debug info in the PCM. 3559 if (getCodeGenOpts().DebugTypeExtRefs) 3560 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3561 code = hash_combine(code, KeyValue.first, KeyValue.second); 3562 3563 // Extend the signature with the enabled sanitizers, if at least one is 3564 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3565 SanitizerSet SanHash = LangOpts->Sanitize; 3566 SanHash.clear(getPPTransparentSanitizers()); 3567 if (!SanHash.empty()) 3568 code = hash_combine(code, SanHash.Mask); 3569 3570 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3571 } 3572 3573 template<typename IntTy> 3574 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 3575 IntTy Default, 3576 DiagnosticsEngine *Diags) { 3577 IntTy Res = Default; 3578 if (Arg *A = Args.getLastArg(Id)) { 3579 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 3580 if (Diags) 3581 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 3582 << A->getValue(); 3583 } 3584 } 3585 return Res; 3586 } 3587 3588 namespace clang { 3589 3590 // Declared in clang/Frontend/Utils.h. 3591 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 3592 DiagnosticsEngine *Diags) { 3593 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 3594 } 3595 3596 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 3597 uint64_t Default, 3598 DiagnosticsEngine *Diags) { 3599 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 3600 } 3601 3602 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3603 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3604 DiagnosticsEngine &Diags) { 3605 return createVFSFromCompilerInvocation(CI, Diags, 3606 llvm::vfs::getRealFileSystem()); 3607 } 3608 3609 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3610 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3611 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3612 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3613 return BaseFS; 3614 3615 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3616 // earlier vfs files are on the bottom 3617 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3618 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3619 Result->getBufferForFile(File); 3620 if (!Buffer) { 3621 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3622 continue; 3623 } 3624 3625 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3626 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3627 /*DiagContext*/ nullptr, Result); 3628 if (!FS) { 3629 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3630 continue; 3631 } 3632 3633 Result = FS; 3634 } 3635 return Result; 3636 } 3637 3638 } // namespace clang 3639