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 .Default(llvm::None); 1741 if (!ProgramAction) 1742 Diags.Report(diag::err_drv_invalid_value) 1743 << "Must specify a valid interface stub format type using " 1744 << "-interface-stub-version=<experimental-tapi-elf-v1 | " 1745 "experimental-yaml-elf-v1>"; 1746 Opts.ProgramAction = *ProgramAction; 1747 break; 1748 } 1749 case OPT_init_only: 1750 Opts.ProgramAction = frontend::InitOnly; break; 1751 case OPT_fsyntax_only: 1752 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1753 case OPT_module_file_info: 1754 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1755 case OPT_verify_pch: 1756 Opts.ProgramAction = frontend::VerifyPCH; break; 1757 case OPT_print_preamble: 1758 Opts.ProgramAction = frontend::PrintPreamble; break; 1759 case OPT_E: 1760 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1761 case OPT_templight_dump: 1762 Opts.ProgramAction = frontend::TemplightDump; break; 1763 case OPT_rewrite_macros: 1764 Opts.ProgramAction = frontend::RewriteMacros; break; 1765 case OPT_rewrite_objc: 1766 Opts.ProgramAction = frontend::RewriteObjC; break; 1767 case OPT_rewrite_test: 1768 Opts.ProgramAction = frontend::RewriteTest; break; 1769 case OPT_analyze: 1770 Opts.ProgramAction = frontend::RunAnalysis; break; 1771 case OPT_migrate: 1772 Opts.ProgramAction = frontend::MigrateSource; break; 1773 case OPT_Eonly: 1774 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1775 case OPT_print_dependency_directives_minimized_source: 1776 Opts.ProgramAction = 1777 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1778 break; 1779 } 1780 } 1781 1782 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1783 Opts.Plugins.emplace_back(A->getValue(0)); 1784 Opts.ProgramAction = frontend::PluginAction; 1785 Opts.ActionName = A->getValue(); 1786 } 1787 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1788 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1789 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1790 1791 for (const std::string &Arg : 1792 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1793 std::string BlockName; 1794 unsigned MajorVersion; 1795 unsigned MinorVersion; 1796 bool Hashed; 1797 std::string UserInfo; 1798 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1799 MinorVersion, Hashed, UserInfo)) { 1800 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1801 1802 continue; 1803 } 1804 1805 // Add the testing module file extension. 1806 Opts.ModuleFileExtensions.push_back( 1807 std::make_shared<TestModuleFileExtension>( 1808 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1809 } 1810 1811 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1812 Opts.CodeCompletionAt = 1813 ParsedSourceLocation::FromString(A->getValue()); 1814 if (Opts.CodeCompletionAt.FileName.empty()) 1815 Diags.Report(diag::err_drv_invalid_value) 1816 << A->getAsString(Args) << A->getValue(); 1817 } 1818 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1819 1820 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1821 Opts.Plugins = Args.getAllArgValues(OPT_load); 1822 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1823 Opts.ShowHelp = Args.hasArg(OPT_help); 1824 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1825 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1826 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1827 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1828 Opts.TimeTraceGranularity = getLastArgIntValue( 1829 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1830 Opts.ShowVersion = Args.hasArg(OPT_version); 1831 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1832 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1833 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1834 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1835 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1836 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1837 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1838 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1839 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1840 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1841 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1842 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1843 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1844 // Only the -fmodule-file=<file> form. 1845 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1846 StringRef Val = A->getValue(); 1847 if (Val.find('=') == StringRef::npos) 1848 Opts.ModuleFiles.push_back(Val); 1849 } 1850 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1851 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1852 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1853 1854 Opts.CodeCompleteOpts.IncludeMacros 1855 = Args.hasArg(OPT_code_completion_macros); 1856 Opts.CodeCompleteOpts.IncludeCodePatterns 1857 = Args.hasArg(OPT_code_completion_patterns); 1858 Opts.CodeCompleteOpts.IncludeGlobals 1859 = !Args.hasArg(OPT_no_code_completion_globals); 1860 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1861 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1862 Opts.CodeCompleteOpts.IncludeBriefComments 1863 = Args.hasArg(OPT_code_completion_brief_comments); 1864 Opts.CodeCompleteOpts.IncludeFixIts 1865 = Args.hasArg(OPT_code_completion_with_fixits); 1866 1867 Opts.OverrideRecordLayoutsFile 1868 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1869 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple); 1870 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1871 1872 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1873 OPT_arcmt_modify, 1874 OPT_arcmt_migrate)) { 1875 switch (A->getOption().getID()) { 1876 default: 1877 llvm_unreachable("missed a case"); 1878 case OPT_arcmt_check: 1879 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1880 break; 1881 case OPT_arcmt_modify: 1882 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1883 break; 1884 case OPT_arcmt_migrate: 1885 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1886 break; 1887 } 1888 } 1889 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1890 Opts.ARCMTMigrateReportOut 1891 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1892 Opts.ARCMTMigrateEmitARCErrors 1893 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1894 1895 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1896 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1897 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1898 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1899 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1900 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1901 if (Args.hasArg(OPT_objcmt_migrate_property)) 1902 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1903 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1904 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1905 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1906 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1907 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1908 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1909 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1910 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1911 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1912 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1913 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1914 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1915 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1916 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1917 if (Args.hasArg(OPT_objcmt_atomic_property)) 1918 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1919 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1920 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1921 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1922 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1923 if (Args.hasArg(OPT_objcmt_migrate_all)) 1924 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1925 1926 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1927 1928 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1929 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1930 Diags.Report(diag::err_drv_argument_not_allowed_with) 1931 << "ARC migration" << "ObjC migration"; 1932 } 1933 1934 InputKind DashX(Language::Unknown); 1935 if (const Arg *A = Args.getLastArg(OPT_x)) { 1936 StringRef XValue = A->getValue(); 1937 1938 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1939 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1940 bool Preprocessed = XValue.consume_back("-cpp-output"); 1941 bool ModuleMap = XValue.consume_back("-module-map"); 1942 IsHeaderFile = 1943 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1944 1945 // Principal languages. 1946 DashX = llvm::StringSwitch<InputKind>(XValue) 1947 .Case("c", Language::C) 1948 .Case("cl", Language::OpenCL) 1949 .Case("cuda", Language::CUDA) 1950 .Case("hip", Language::HIP) 1951 .Case("c++", Language::CXX) 1952 .Case("objective-c", Language::ObjC) 1953 .Case("objective-c++", Language::ObjCXX) 1954 .Case("renderscript", Language::RenderScript) 1955 .Default(Language::Unknown); 1956 1957 // "objc[++]-cpp-output" is an acceptable synonym for 1958 // "objective-c[++]-cpp-output". 1959 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1960 DashX = llvm::StringSwitch<InputKind>(XValue) 1961 .Case("objc", Language::ObjC) 1962 .Case("objc++", Language::ObjCXX) 1963 .Default(Language::Unknown); 1964 1965 // Some special cases cannot be combined with suffixes. 1966 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1967 DashX = llvm::StringSwitch<InputKind>(XValue) 1968 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 1969 .Case("assembler-with-cpp", Language::Asm) 1970 .Cases("ast", "pcm", 1971 InputKind(Language::Unknown, InputKind::Precompiled)) 1972 .Case("ir", Language::LLVM_IR) 1973 .Default(Language::Unknown); 1974 1975 if (DashX.isUnknown()) 1976 Diags.Report(diag::err_drv_invalid_value) 1977 << A->getAsString(Args) << A->getValue(); 1978 1979 if (Preprocessed) 1980 DashX = DashX.getPreprocessed(); 1981 if (ModuleMap) 1982 DashX = DashX.withFormat(InputKind::ModuleMap); 1983 } 1984 1985 // '-' is the default input if none is given. 1986 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1987 Opts.Inputs.clear(); 1988 if (Inputs.empty()) 1989 Inputs.push_back("-"); 1990 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1991 InputKind IK = DashX; 1992 if (IK.isUnknown()) { 1993 IK = FrontendOptions::getInputKindForExtension( 1994 StringRef(Inputs[i]).rsplit('.').second); 1995 // FIXME: Warn on this? 1996 if (IK.isUnknown()) 1997 IK = Language::C; 1998 // FIXME: Remove this hack. 1999 if (i == 0) 2000 DashX = IK; 2001 } 2002 2003 // The -emit-module action implicitly takes a module map. 2004 if (Opts.ProgramAction == frontend::GenerateModule && 2005 IK.getFormat() == InputKind::Source) 2006 IK = IK.withFormat(InputKind::ModuleMap); 2007 2008 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 2009 } 2010 2011 return DashX; 2012 } 2013 2014 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2015 void *MainAddr) { 2016 std::string ClangExecutable = 2017 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2018 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2019 } 2020 2021 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2022 const std::string &WorkingDir) { 2023 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 2024 Opts.Verbose = Args.hasArg(OPT_v); 2025 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2026 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2027 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2028 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2029 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2030 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 2031 2032 // Canonicalize -fmodules-cache-path before storing it. 2033 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2034 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2035 if (WorkingDir.empty()) 2036 llvm::sys::fs::make_absolute(P); 2037 else 2038 llvm::sys::fs::make_absolute(WorkingDir, P); 2039 } 2040 llvm::sys::path::remove_dots(P); 2041 Opts.ModuleCachePath = P.str(); 2042 2043 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 2044 // Only the -fmodule-file=<name>=<file> form. 2045 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2046 StringRef Val = A->getValue(); 2047 if (Val.find('=') != StringRef::npos) 2048 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 2049 } 2050 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2051 Opts.AddPrebuiltModulePath(A->getValue()); 2052 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2053 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2054 Opts.ModulesValidateDiagnosticOptions = 2055 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2056 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2057 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2058 Opts.ModuleCachePruneInterval = 2059 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2060 Opts.ModuleCachePruneAfter = 2061 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2062 Opts.ModulesValidateOncePerBuildSession = 2063 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2064 Opts.BuildSessionTimestamp = 2065 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2066 Opts.ModulesValidateSystemHeaders = 2067 Args.hasArg(OPT_fmodules_validate_system_headers); 2068 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2069 Opts.ModuleFormat = A->getValue(); 2070 2071 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2072 StringRef MacroDef = A->getValue(); 2073 Opts.ModulesIgnoreMacros.insert( 2074 llvm::CachedHashString(MacroDef.split('=').first)); 2075 } 2076 2077 // Add -I..., -F..., and -index-header-map options in order. 2078 bool IsIndexHeaderMap = false; 2079 bool IsSysrootSpecified = 2080 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2081 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2082 if (A->getOption().matches(OPT_index_header_map)) { 2083 // -index-header-map applies to the next -I or -F. 2084 IsIndexHeaderMap = true; 2085 continue; 2086 } 2087 2088 frontend::IncludeDirGroup Group = 2089 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2090 2091 bool IsFramework = A->getOption().matches(OPT_F); 2092 std::string Path = A->getValue(); 2093 2094 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2095 SmallString<32> Buffer; 2096 llvm::sys::path::append(Buffer, Opts.Sysroot, 2097 llvm::StringRef(A->getValue()).substr(1)); 2098 Path = Buffer.str(); 2099 } 2100 2101 Opts.AddPath(Path, Group, IsFramework, 2102 /*IgnoreSysroot*/ true); 2103 IsIndexHeaderMap = false; 2104 } 2105 2106 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2107 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2108 for (const auto *A : 2109 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2110 if (A->getOption().matches(OPT_iprefix)) 2111 Prefix = A->getValue(); 2112 else if (A->getOption().matches(OPT_iwithprefix)) 2113 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2114 else 2115 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2116 } 2117 2118 for (const auto *A : Args.filtered(OPT_idirafter)) 2119 Opts.AddPath(A->getValue(), frontend::After, false, true); 2120 for (const auto *A : Args.filtered(OPT_iquote)) 2121 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2122 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2123 Opts.AddPath(A->getValue(), frontend::System, false, 2124 !A->getOption().matches(OPT_iwithsysroot)); 2125 for (const auto *A : Args.filtered(OPT_iframework)) 2126 Opts.AddPath(A->getValue(), frontend::System, true, true); 2127 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2128 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2129 /*IgnoreSysRoot=*/false); 2130 2131 // Add the paths for the various language specific isystem flags. 2132 for (const auto *A : Args.filtered(OPT_c_isystem)) 2133 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2134 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2135 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2136 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2137 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2138 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2139 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2140 2141 // Add the internal paths from a driver that detects standard include paths. 2142 for (const auto *A : 2143 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2144 frontend::IncludeDirGroup Group = frontend::System; 2145 if (A->getOption().matches(OPT_internal_externc_isystem)) 2146 Group = frontend::ExternCSystem; 2147 Opts.AddPath(A->getValue(), Group, false, true); 2148 } 2149 2150 // Add the path prefixes which are implicitly treated as being system headers. 2151 for (const auto *A : 2152 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2153 Opts.AddSystemHeaderPrefix( 2154 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2155 2156 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2157 Opts.AddVFSOverlayFile(A->getValue()); 2158 } 2159 2160 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2161 const llvm::Triple &T, 2162 PreprocessorOptions &PPOpts, 2163 LangStandard::Kind LangStd) { 2164 // Set some properties which depend solely on the input kind; it would be nice 2165 // to move these to the language standard, and have the driver resolve the 2166 // input kind + language standard. 2167 // 2168 // FIXME: Perhaps a better model would be for a single source file to have 2169 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2170 // simultaneously active? 2171 if (IK.getLanguage() == Language::Asm) { 2172 Opts.AsmPreprocessor = 1; 2173 } else if (IK.isObjectiveC()) { 2174 Opts.ObjC = 1; 2175 } 2176 2177 if (LangStd == LangStandard::lang_unspecified) { 2178 // Based on the base language, pick one. 2179 switch (IK.getLanguage()) { 2180 case Language::Unknown: 2181 case Language::LLVM_IR: 2182 llvm_unreachable("Invalid input kind!"); 2183 case Language::OpenCL: 2184 LangStd = LangStandard::lang_opencl10; 2185 break; 2186 case Language::CUDA: 2187 LangStd = LangStandard::lang_cuda; 2188 break; 2189 case Language::Asm: 2190 case Language::C: 2191 #if defined(CLANG_DEFAULT_STD_C) 2192 LangStd = CLANG_DEFAULT_STD_C; 2193 #else 2194 // The PS4 uses C99 as the default C standard. 2195 if (T.isPS4()) 2196 LangStd = LangStandard::lang_gnu99; 2197 else 2198 LangStd = LangStandard::lang_gnu11; 2199 #endif 2200 break; 2201 case Language::ObjC: 2202 #if defined(CLANG_DEFAULT_STD_C) 2203 LangStd = CLANG_DEFAULT_STD_C; 2204 #else 2205 LangStd = LangStandard::lang_gnu11; 2206 #endif 2207 break; 2208 case Language::CXX: 2209 case Language::ObjCXX: 2210 #if defined(CLANG_DEFAULT_STD_CXX) 2211 LangStd = CLANG_DEFAULT_STD_CXX; 2212 #else 2213 LangStd = LangStandard::lang_gnucxx14; 2214 #endif 2215 break; 2216 case Language::RenderScript: 2217 LangStd = LangStandard::lang_c99; 2218 break; 2219 case Language::HIP: 2220 LangStd = LangStandard::lang_hip; 2221 break; 2222 } 2223 } 2224 2225 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2226 Opts.LineComment = Std.hasLineComments(); 2227 Opts.C99 = Std.isC99(); 2228 Opts.C11 = Std.isC11(); 2229 Opts.C17 = Std.isC17(); 2230 Opts.C2x = Std.isC2x(); 2231 Opts.CPlusPlus = Std.isCPlusPlus(); 2232 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2233 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2234 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2235 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2236 Opts.Digraphs = Std.hasDigraphs(); 2237 Opts.GNUMode = Std.isGNUMode(); 2238 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2239 Opts.HexFloats = Std.hasHexFloats(); 2240 Opts.ImplicitInt = Std.hasImplicitInt(); 2241 2242 // Set OpenCL Version. 2243 Opts.OpenCL = Std.isOpenCL(); 2244 if (LangStd == LangStandard::lang_opencl10) 2245 Opts.OpenCLVersion = 100; 2246 else if (LangStd == LangStandard::lang_opencl11) 2247 Opts.OpenCLVersion = 110; 2248 else if (LangStd == LangStandard::lang_opencl12) 2249 Opts.OpenCLVersion = 120; 2250 else if (LangStd == LangStandard::lang_opencl20) 2251 Opts.OpenCLVersion = 200; 2252 else if (LangStd == LangStandard::lang_openclcpp) 2253 Opts.OpenCLCPlusPlusVersion = 100; 2254 2255 // OpenCL has some additional defaults. 2256 if (Opts.OpenCL) { 2257 Opts.AltiVec = 0; 2258 Opts.ZVector = 0; 2259 Opts.LaxVectorConversions = 0; 2260 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2261 Opts.NativeHalfType = 1; 2262 Opts.NativeHalfArgsAndReturns = 1; 2263 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2264 2265 // Include default header file for OpenCL. 2266 if (Opts.IncludeDefaultHeader) { 2267 if (Opts.DeclareOpenCLBuiltins) { 2268 // Only include base header file for builtin types and constants. 2269 PPOpts.Includes.push_back("opencl-c-base.h"); 2270 } else { 2271 PPOpts.Includes.push_back("opencl-c.h"); 2272 } 2273 } 2274 } 2275 2276 Opts.HIP = IK.getLanguage() == Language::HIP; 2277 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2278 if (Opts.CUDA) 2279 // Set default FP_CONTRACT to FAST. 2280 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2281 2282 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2283 if (Opts.RenderScript) { 2284 Opts.NativeHalfType = 1; 2285 Opts.NativeHalfArgsAndReturns = 1; 2286 } 2287 2288 // OpenCL and C++ both have bool, true, false keywords. 2289 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2290 2291 // OpenCL has half keyword 2292 Opts.Half = Opts.OpenCL; 2293 2294 // C++ has wchar_t keyword. 2295 Opts.WChar = Opts.CPlusPlus; 2296 2297 Opts.GNUKeywords = Opts.GNUMode; 2298 Opts.CXXOperatorNames = Opts.CPlusPlus; 2299 2300 Opts.AlignedAllocation = Opts.CPlusPlus17; 2301 2302 Opts.DollarIdents = !Opts.AsmPreprocessor; 2303 2304 // Enable [[]] attributes in C++11 and C2x by default. 2305 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2306 } 2307 2308 /// Attempt to parse a visibility value out of the given argument. 2309 static Visibility parseVisibility(Arg *arg, ArgList &args, 2310 DiagnosticsEngine &diags) { 2311 StringRef value = arg->getValue(); 2312 if (value == "default") { 2313 return DefaultVisibility; 2314 } else if (value == "hidden" || value == "internal") { 2315 return HiddenVisibility; 2316 } else if (value == "protected") { 2317 // FIXME: diagnose if target does not support protected visibility 2318 return ProtectedVisibility; 2319 } 2320 2321 diags.Report(diag::err_drv_invalid_value) 2322 << arg->getAsString(args) << value; 2323 return DefaultVisibility; 2324 } 2325 2326 /// Check if input file kind and language standard are compatible. 2327 static bool IsInputCompatibleWithStandard(InputKind IK, 2328 const LangStandard &S) { 2329 switch (IK.getLanguage()) { 2330 case Language::Unknown: 2331 case Language::LLVM_IR: 2332 llvm_unreachable("should not parse language flags for this input"); 2333 2334 case Language::C: 2335 case Language::ObjC: 2336 case Language::RenderScript: 2337 return S.getLanguage() == Language::C; 2338 2339 case Language::OpenCL: 2340 return S.getLanguage() == Language::OpenCL; 2341 2342 case Language::CXX: 2343 case Language::ObjCXX: 2344 return S.getLanguage() == Language::CXX; 2345 2346 case Language::CUDA: 2347 // FIXME: What -std= values should be permitted for CUDA compilations? 2348 return S.getLanguage() == Language::CUDA || 2349 S.getLanguage() == Language::CXX; 2350 2351 case Language::HIP: 2352 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2353 2354 case Language::Asm: 2355 // Accept (and ignore) all -std= values. 2356 // FIXME: The -std= value is not ignored; it affects the tokenization 2357 // and preprocessing rules if we're preprocessing this asm input. 2358 return true; 2359 } 2360 2361 llvm_unreachable("unexpected input language"); 2362 } 2363 2364 /// Get language name for given input kind. 2365 static const StringRef GetInputKindName(InputKind IK) { 2366 switch (IK.getLanguage()) { 2367 case Language::C: 2368 return "C"; 2369 case Language::ObjC: 2370 return "Objective-C"; 2371 case Language::CXX: 2372 return "C++"; 2373 case Language::ObjCXX: 2374 return "Objective-C++"; 2375 case Language::OpenCL: 2376 return "OpenCL"; 2377 case Language::CUDA: 2378 return "CUDA"; 2379 case Language::RenderScript: 2380 return "RenderScript"; 2381 case Language::HIP: 2382 return "HIP"; 2383 2384 case Language::Asm: 2385 return "Asm"; 2386 case Language::LLVM_IR: 2387 return "LLVM IR"; 2388 2389 case Language::Unknown: 2390 break; 2391 } 2392 llvm_unreachable("unknown input language"); 2393 } 2394 2395 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2396 const TargetOptions &TargetOpts, 2397 PreprocessorOptions &PPOpts, 2398 DiagnosticsEngine &Diags) { 2399 // FIXME: Cleanup per-file based stuff. 2400 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2401 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2402 LangStd = LangStandard::getLangKind(A->getValue()); 2403 if (LangStd == LangStandard::lang_unspecified) { 2404 Diags.Report(diag::err_drv_invalid_value) 2405 << A->getAsString(Args) << A->getValue(); 2406 // Report supported standards with short description. 2407 for (unsigned KindValue = 0; 2408 KindValue != LangStandard::lang_unspecified; 2409 ++KindValue) { 2410 const LangStandard &Std = LangStandard::getLangStandardForKind( 2411 static_cast<LangStandard::Kind>(KindValue)); 2412 if (IsInputCompatibleWithStandard(IK, Std)) { 2413 auto Diag = Diags.Report(diag::note_drv_use_standard); 2414 Diag << Std.getName() << Std.getDescription(); 2415 unsigned NumAliases = 0; 2416 #define LANGSTANDARD(id, name, lang, desc, features) 2417 #define LANGSTANDARD_ALIAS(id, alias) \ 2418 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2419 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2420 #include "clang/Basic/LangStandards.def" 2421 Diag << NumAliases; 2422 #define LANGSTANDARD(id, name, lang, desc, features) 2423 #define LANGSTANDARD_ALIAS(id, alias) \ 2424 if (KindValue == LangStandard::lang_##id) Diag << alias; 2425 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2426 #include "clang/Basic/LangStandards.def" 2427 } 2428 } 2429 } else { 2430 // Valid standard, check to make sure language and standard are 2431 // compatible. 2432 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2433 if (!IsInputCompatibleWithStandard(IK, Std)) { 2434 Diags.Report(diag::err_drv_argument_not_allowed_with) 2435 << A->getAsString(Args) << GetInputKindName(IK); 2436 } 2437 } 2438 } 2439 2440 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2441 Opts.DllExportInlines = false; 2442 2443 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2444 StringRef Name = A->getValue(); 2445 if (Name == "full" || Name == "branch") { 2446 Opts.CFProtectionBranch = 1; 2447 } 2448 } 2449 // -cl-std only applies for OpenCL language standards. 2450 // Override the -std option in this case. 2451 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2452 LangStandard::Kind OpenCLLangStd 2453 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2454 .Cases("cl", "CL", LangStandard::lang_opencl10) 2455 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2456 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2457 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2458 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2459 .Default(LangStandard::lang_unspecified); 2460 2461 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2462 Diags.Report(diag::err_drv_invalid_value) 2463 << A->getAsString(Args) << A->getValue(); 2464 } 2465 else 2466 LangStd = OpenCLLangStd; 2467 } 2468 2469 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2470 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2471 2472 llvm::Triple T(TargetOpts.Triple); 2473 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2474 2475 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2476 // This option should be deprecated for CL > 1.0 because 2477 // this option was added for compatibility with OpenCL 1.0. 2478 if (Args.getLastArg(OPT_cl_strict_aliasing) 2479 && Opts.OpenCLVersion > 100) { 2480 Diags.Report(diag::warn_option_invalid_ocl_version) 2481 << Opts.getOpenCLVersionTuple().getAsString() 2482 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2483 } 2484 2485 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2486 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2487 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2488 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2489 // name, as it doesn't seem a useful distinction. 2490 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2491 Opts.GNUKeywords); 2492 2493 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2494 2495 if (Args.hasArg(OPT_fno_operator_names)) 2496 Opts.CXXOperatorNames = 0; 2497 2498 if (Args.hasArg(OPT_fcuda_is_device)) 2499 Opts.CUDAIsDevice = 1; 2500 2501 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2502 Opts.CUDAAllowVariadicFunctions = 1; 2503 2504 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2505 Opts.CUDAHostDeviceConstexpr = 0; 2506 2507 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2508 Opts.CUDADeviceApproxTranscendentals = 1; 2509 2510 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2511 2512 if (Opts.ObjC) { 2513 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2514 StringRef value = arg->getValue(); 2515 if (Opts.ObjCRuntime.tryParse(value)) 2516 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2517 } 2518 2519 if (Args.hasArg(OPT_fobjc_gc_only)) 2520 Opts.setGC(LangOptions::GCOnly); 2521 else if (Args.hasArg(OPT_fobjc_gc)) 2522 Opts.setGC(LangOptions::HybridGC); 2523 else if (Args.hasArg(OPT_fobjc_arc)) { 2524 Opts.ObjCAutoRefCount = 1; 2525 if (!Opts.ObjCRuntime.allowsARC()) 2526 Diags.Report(diag::err_arc_unsupported_on_runtime); 2527 } 2528 2529 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2530 // whether the feature is actually enabled. This is predominantly 2531 // determined by -fobjc-runtime, but we allow it to be overridden 2532 // from the command line for testing purposes. 2533 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2534 Opts.ObjCWeakRuntime = 1; 2535 else 2536 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2537 2538 // ObjCWeak determines whether __weak is actually enabled. 2539 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2540 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2541 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2542 assert(!Opts.ObjCWeak); 2543 } else if (Opts.getGC() != LangOptions::NonGC) { 2544 Diags.Report(diag::err_objc_weak_with_gc); 2545 } else if (!Opts.ObjCWeakRuntime) { 2546 Diags.Report(diag::err_objc_weak_unsupported); 2547 } else { 2548 Opts.ObjCWeak = 1; 2549 } 2550 } else if (Opts.ObjCAutoRefCount) { 2551 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2552 } 2553 2554 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2555 Opts.ObjCInferRelatedResultType = 0; 2556 2557 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2558 Opts.ObjCSubscriptingLegacyRuntime = 2559 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2560 } 2561 2562 if (Args.hasArg(OPT_fgnu89_inline)) { 2563 if (Opts.CPlusPlus) 2564 Diags.Report(diag::err_drv_argument_not_allowed_with) 2565 << "-fgnu89-inline" << GetInputKindName(IK); 2566 else 2567 Opts.GNUInline = 1; 2568 } 2569 2570 if (Args.hasArg(OPT_fapple_kext)) { 2571 if (!Opts.CPlusPlus) 2572 Diags.Report(diag::warn_c_kext); 2573 else 2574 Opts.AppleKext = 1; 2575 } 2576 2577 if (Args.hasArg(OPT_print_ivar_layout)) 2578 Opts.ObjCGCBitmapPrint = 1; 2579 2580 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2581 Opts.NoConstantCFStrings = 1; 2582 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2583 Opts.CFRuntime = 2584 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2585 .Cases("unspecified", "standalone", "objc", 2586 LangOptions::CoreFoundationABI::ObjectiveC) 2587 .Cases("swift", "swift-5.0", 2588 LangOptions::CoreFoundationABI::Swift5_0) 2589 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2590 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2591 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2592 2593 if (Args.hasArg(OPT_fzvector)) 2594 Opts.ZVector = 1; 2595 2596 if (Args.hasArg(OPT_pthread)) 2597 Opts.POSIXThreads = 1; 2598 2599 // The value-visibility mode defaults to "default". 2600 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2601 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2602 } else { 2603 Opts.setValueVisibilityMode(DefaultVisibility); 2604 } 2605 2606 // The type-visibility mode defaults to the value-visibility mode. 2607 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2608 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2609 } else { 2610 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2611 } 2612 2613 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2614 Opts.InlineVisibilityHidden = 1; 2615 2616 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2617 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2618 2619 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2620 Opts.SetVisibilityForExternDecls = 1; 2621 2622 if (Args.hasArg(OPT_ftrapv)) { 2623 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2624 // Set the handler, if one is specified. 2625 Opts.OverflowHandler = 2626 Args.getLastArgValue(OPT_ftrapv_handler); 2627 } 2628 else if (Args.hasArg(OPT_fwrapv)) 2629 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2630 2631 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2632 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2633 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2634 Opts.MSCompatibilityVersion = 0; 2635 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2636 VersionTuple VT; 2637 if (VT.tryParse(A->getValue())) 2638 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2639 << A->getValue(); 2640 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2641 VT.getMinor().getValueOr(0) * 100000 + 2642 VT.getSubminor().getValueOr(0); 2643 } 2644 2645 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2646 // is specified, or -std is set to a conforming mode. 2647 // Trigraphs are disabled by default in c++1z onwards. 2648 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2649 Opts.Trigraphs = 2650 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2651 2652 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2653 OPT_fno_dollars_in_identifiers, 2654 Opts.DollarIdents); 2655 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2656 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2657 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2658 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2659 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2660 Opts.ConstStrings); 2661 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2662 Opts.LaxVectorConversions = 0; 2663 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2664 Opts.ThreadsafeStatics = 0; 2665 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2666 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2667 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2668 2669 // -ffixed-point 2670 Opts.FixedPoint = 2671 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2672 !Opts.CPlusPlus; 2673 Opts.PaddingOnUnsignedFixedPoint = 2674 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2675 OPT_fno_padding_on_unsigned_fixed_point, 2676 /*Default=*/false) && 2677 Opts.FixedPoint; 2678 2679 // Handle exception personalities 2680 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2681 options::OPT_fseh_exceptions, 2682 options::OPT_fdwarf_exceptions); 2683 if (A) { 2684 const Option &Opt = A->getOption(); 2685 llvm::Triple T(TargetOpts.Triple); 2686 if (T.isWindowsMSVCEnvironment()) 2687 Diags.Report(diag::err_fe_invalid_exception_model) 2688 << Opt.getName() << T.str(); 2689 2690 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2691 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2692 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2693 } 2694 2695 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2696 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2697 2698 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2699 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2700 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2701 && Opts.OpenCLVersion == 200); 2702 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2703 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2704 2705 Opts.DoubleSquareBracketAttributes = 2706 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2707 OPT_fno_double_square_bracket_attributes, 2708 Opts.DoubleSquareBracketAttributes); 2709 2710 Opts.CPlusPlusModules = Opts.CPlusPlus2a; 2711 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2712 Opts.Modules = 2713 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2714 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2715 Opts.ModulesDeclUse = 2716 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2717 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2718 // enter a different module (eg, when building a header unit). 2719 Opts.ModulesLocalVisibility = 2720 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2721 Opts.CPlusPlusModules; 2722 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2723 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2724 Opts.ModulesSearchAll = Opts.Modules && 2725 !Args.hasArg(OPT_fno_modules_search_all) && 2726 Args.hasArg(OPT_fmodules_search_all); 2727 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2728 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2729 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2730 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2731 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2732 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2733 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2734 .Case("char", 1) 2735 .Case("short", 2) 2736 .Case("int", 4) 2737 .Default(0); 2738 if (Opts.WCharSize == 0) 2739 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2740 } 2741 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2742 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2743 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2744 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2745 if (!Opts.NoBuiltin) 2746 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2747 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2748 Opts.RelaxedTemplateTemplateArgs = 2749 Args.hasArg(OPT_frelaxed_template_template_args); 2750 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2751 Opts.AlignedAllocation = 2752 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2753 Opts.AlignedAllocation); 2754 Opts.AlignedAllocationUnavailable = 2755 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2756 Opts.NewAlignOverride = 2757 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2758 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2759 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2760 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2761 << A->getValue(); 2762 Opts.NewAlignOverride = 0; 2763 } 2764 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2765 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2766 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2767 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2768 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2769 Opts.InstantiationDepth = 2770 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2771 Opts.ArrowDepth = 2772 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2773 Opts.ConstexprCallDepth = 2774 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2775 Opts.ConstexprStepLimit = 2776 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2777 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2778 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2779 Opts.NumLargeByValueCopy = 2780 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2781 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2782 Opts.ObjCConstantStringClass = 2783 Args.getLastArgValue(OPT_fconstant_string_class); 2784 Opts.ObjCDefaultSynthProperties = 2785 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2786 Opts.EncodeExtendedBlockSig = 2787 Args.hasArg(OPT_fencode_extended_block_signature); 2788 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2789 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2790 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2791 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2792 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2793 ? 128 2794 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2795 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2796 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2797 Opts.ROPI = Args.hasArg(OPT_fropi); 2798 Opts.RWPI = Args.hasArg(OPT_frwpi); 2799 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2800 Opts.Static = Args.hasArg(OPT_static_define); 2801 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2802 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2803 || Args.hasArg(OPT_fdump_record_layouts); 2804 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2805 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2806 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2807 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2808 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2809 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2810 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2811 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2812 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2813 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2814 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2815 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2816 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ); 2817 Opts.CurrentModule = Opts.ModuleName; 2818 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2819 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2820 llvm::sort(Opts.ModuleFeatures); 2821 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2822 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2823 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2824 // is enabled. 2825 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2826 | Opts.NativeHalfArgsAndReturns; 2827 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2828 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2829 2830 // __declspec is enabled by default for the PS4 by the driver, and also 2831 // enabled for Microsoft Extensions or Borland Extensions, here. 2832 // 2833 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2834 // CUDA extension. However, it is required for supporting 2835 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2836 // been rewritten in terms of something more generic, remove the Opts.CUDA 2837 // term here. 2838 Opts.DeclSpecKeyword = 2839 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2840 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2841 2842 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2843 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2844 .Case("target", LangOptions::ASMM_Target) 2845 .Case("no", LangOptions::ASMM_Off) 2846 .Case("yes", LangOptions::ASMM_On) 2847 .Default(255)) { 2848 default: 2849 Diags.Report(diag::err_drv_invalid_value) 2850 << "-faddress-space-map-mangling=" << A->getValue(); 2851 break; 2852 case LangOptions::ASMM_Target: 2853 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2854 break; 2855 case LangOptions::ASMM_On: 2856 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2857 break; 2858 case LangOptions::ASMM_Off: 2859 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2860 break; 2861 } 2862 } 2863 2864 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2865 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2866 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2867 A->getValue()) 2868 .Case("single", 2869 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2870 .Case("multiple", 2871 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2872 .Case("virtual", 2873 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2874 .Default(LangOptions::PPTMK_BestCase); 2875 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2876 Diags.Report(diag::err_drv_invalid_value) 2877 << "-fms-memptr-rep=" << A->getValue(); 2878 2879 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2880 } 2881 2882 // Check for MS default calling conventions being specified. 2883 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2884 LangOptions::DefaultCallingConvention DefaultCC = 2885 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2886 .Case("cdecl", LangOptions::DCC_CDecl) 2887 .Case("fastcall", LangOptions::DCC_FastCall) 2888 .Case("stdcall", LangOptions::DCC_StdCall) 2889 .Case("vectorcall", LangOptions::DCC_VectorCall) 2890 .Case("regcall", LangOptions::DCC_RegCall) 2891 .Default(LangOptions::DCC_None); 2892 if (DefaultCC == LangOptions::DCC_None) 2893 Diags.Report(diag::err_drv_invalid_value) 2894 << "-fdefault-calling-conv=" << A->getValue(); 2895 2896 llvm::Triple T(TargetOpts.Triple); 2897 llvm::Triple::ArchType Arch = T.getArch(); 2898 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2899 DefaultCC == LangOptions::DCC_StdCall) && 2900 Arch != llvm::Triple::x86; 2901 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2902 DefaultCC == LangOptions::DCC_RegCall) && 2903 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2904 if (emitError) 2905 Diags.Report(diag::err_drv_argument_not_allowed_with) 2906 << A->getSpelling() << T.getTriple(); 2907 else 2908 Opts.setDefaultCallingConv(DefaultCC); 2909 } 2910 2911 // -mrtd option 2912 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2913 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2914 Diags.Report(diag::err_drv_argument_not_allowed_with) 2915 << A->getSpelling() << "-fdefault-calling-conv"; 2916 else { 2917 llvm::Triple T(TargetOpts.Triple); 2918 if (T.getArch() != llvm::Triple::x86) 2919 Diags.Report(diag::err_drv_argument_not_allowed_with) 2920 << A->getSpelling() << T.getTriple(); 2921 else 2922 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2923 } 2924 } 2925 2926 // Check if -fopenmp is specified and set default version to 4.5. 2927 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 45 : 0; 2928 // Check if -fopenmp-simd is specified. 2929 bool IsSimdSpecified = 2930 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2931 /*Default=*/false); 2932 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2933 Opts.OpenMPUseTLS = 2934 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2935 Opts.OpenMPIsDevice = 2936 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2937 bool IsTargetSpecified = 2938 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2939 2940 if (Opts.OpenMP || Opts.OpenMPSimd) { 2941 if (int Version = getLastArgIntValue( 2942 Args, OPT_fopenmp_version_EQ, 2943 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 2944 Opts.OpenMP = Version; 2945 else if (IsSimdSpecified || IsTargetSpecified) 2946 Opts.OpenMP = 45; 2947 // Provide diagnostic when a given target is not expected to be an OpenMP 2948 // device or host. 2949 if (!Opts.OpenMPIsDevice) { 2950 switch (T.getArch()) { 2951 default: 2952 break; 2953 // Add unsupported host targets here: 2954 case llvm::Triple::nvptx: 2955 case llvm::Triple::nvptx64: 2956 Diags.Report(diag::err_drv_omp_host_target_not_supported) 2957 << TargetOpts.Triple; 2958 break; 2959 } 2960 } 2961 } 2962 2963 // Set the flag to prevent the implementation from emitting device exception 2964 // handling code for those requiring so. 2965 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 2966 Opts.Exceptions = 0; 2967 Opts.CXXExceptions = 0; 2968 } 2969 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2970 Opts.OpenMPCUDANumSMs = 2971 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 2972 Opts.OpenMPCUDANumSMs, Diags); 2973 Opts.OpenMPCUDABlocksPerSM = 2974 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 2975 Opts.OpenMPCUDABlocksPerSM, Diags); 2976 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 2977 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 2978 Opts.OpenMPCUDAReductionBufNum, Diags); 2979 } 2980 2981 // Prevent auto-widening the representation of loop counters during an 2982 // OpenMP collapse clause. 2983 Opts.OpenMPOptimisticCollapse = 2984 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 2985 2986 // Get the OpenMP target triples if any. 2987 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2988 2989 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2990 llvm::Triple TT(A->getValue(i)); 2991 2992 if (TT.getArch() == llvm::Triple::UnknownArch || 2993 !(TT.getArch() == llvm::Triple::ppc || 2994 TT.getArch() == llvm::Triple::ppc64 || 2995 TT.getArch() == llvm::Triple::ppc64le || 2996 TT.getArch() == llvm::Triple::nvptx || 2997 TT.getArch() == llvm::Triple::nvptx64 || 2998 TT.getArch() == llvm::Triple::x86 || 2999 TT.getArch() == llvm::Triple::x86_64)) 3000 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3001 else 3002 Opts.OMPTargetTriples.push_back(TT); 3003 } 3004 } 3005 3006 // Get OpenMP host file path if any and report if a non existent file is 3007 // found 3008 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3009 Opts.OMPHostIRFile = A->getValue(); 3010 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3011 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3012 << Opts.OMPHostIRFile; 3013 } 3014 3015 Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device); 3016 3017 // Set CUDA mode for OpenMP target NVPTX if specified in options 3018 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 3019 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3020 3021 // Set CUDA mode for OpenMP target NVPTX if specified in options 3022 Opts.OpenMPCUDAForceFullRuntime = 3023 Opts.OpenMPIsDevice && T.isNVPTX() && 3024 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3025 3026 // Record whether the __DEPRECATED define was requested. 3027 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3028 OPT_fno_deprecated_macro, 3029 Opts.Deprecated); 3030 3031 // FIXME: Eliminate this dependency. 3032 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3033 OptSize = getOptimizationLevelSize(Args); 3034 Opts.Optimize = Opt != 0; 3035 Opts.OptimizeSize = OptSize != 0; 3036 3037 // This is the __NO_INLINE__ define, which just depends on things like the 3038 // optimization level and -fno-inline, not actually whether the backend has 3039 // inlining enabled. 3040 Opts.NoInlineDefine = !Opts.Optimize; 3041 if (Arg *InlineArg = Args.getLastArg( 3042 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3043 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3044 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3045 Opts.NoInlineDefine = true; 3046 3047 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 3048 Args.hasArg(OPT_cl_fast_relaxed_math); 3049 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3050 Args.hasArg(OPT_cl_finite_math_only) || 3051 Args.hasArg(OPT_cl_fast_relaxed_math); 3052 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3053 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3054 Args.hasArg(OPT_cl_fast_relaxed_math); 3055 3056 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3057 StringRef Val = A->getValue(); 3058 if (Val == "fast") 3059 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 3060 else if (Val == "on") 3061 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 3062 else if (Val == "off") 3063 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 3064 else 3065 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3066 } 3067 3068 Opts.RetainCommentsFromSystemHeaders = 3069 Args.hasArg(OPT_fretain_comments_from_system_headers); 3070 3071 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3072 switch (SSP) { 3073 default: 3074 Diags.Report(diag::err_drv_invalid_value) 3075 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3076 break; 3077 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3078 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3079 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3080 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3081 } 3082 3083 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3084 StringRef Val = A->getValue(); 3085 if (Val == "uninitialized") 3086 Opts.setTrivialAutoVarInit( 3087 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3088 else if (Val == "zero") 3089 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3090 else if (Val == "pattern") 3091 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3092 else 3093 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3094 } 3095 3096 // Parse -fsanitize= arguments. 3097 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3098 Diags, Opts.Sanitize); 3099 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3100 Opts.SanitizeAddressFieldPadding = 3101 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3102 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3103 3104 // -fxray-instrument 3105 Opts.XRayInstrument = 3106 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 3107 3108 // -fxray-always-emit-customevents 3109 Opts.XRayAlwaysEmitCustomEvents = 3110 Args.hasFlag(OPT_fxray_always_emit_customevents, 3111 OPT_fnoxray_always_emit_customevents, false); 3112 3113 // -fxray-always-emit-typedevents 3114 Opts.XRayAlwaysEmitTypedEvents = 3115 Args.hasFlag(OPT_fxray_always_emit_typedevents, 3116 OPT_fnoxray_always_emit_customevents, false); 3117 3118 // -fxray-{always,never}-instrument= filenames. 3119 Opts.XRayAlwaysInstrumentFiles = 3120 Args.getAllArgValues(OPT_fxray_always_instrument); 3121 Opts.XRayNeverInstrumentFiles = 3122 Args.getAllArgValues(OPT_fxray_never_instrument); 3123 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3124 3125 // -fforce-emit-vtables 3126 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3127 3128 // -fallow-editor-placeholders 3129 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3130 3131 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3132 3133 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3134 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3135 3136 StringRef Ver = A->getValue(); 3137 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3138 unsigned Major, Minor = 0; 3139 3140 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3141 // y or y.0 (4 <= y <= current version). 3142 if (!VerParts.first.startswith("0") && 3143 !VerParts.first.getAsInteger(10, Major) && 3144 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3145 (Major == 3 ? VerParts.second.size() == 1 && 3146 !VerParts.second.getAsInteger(10, Minor) 3147 : VerParts.first.size() == Ver.size() || 3148 VerParts.second == "0")) { 3149 // Got a valid version number. 3150 if (Major == 3 && Minor <= 8) 3151 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3152 else if (Major <= 4) 3153 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3154 else if (Major <= 6) 3155 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3156 else if (Major <= 7) 3157 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3158 } else if (Ver != "latest") { 3159 Diags.Report(diag::err_drv_invalid_value) 3160 << A->getAsString(Args) << A->getValue(); 3161 } 3162 } 3163 3164 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3165 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3166 } 3167 3168 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3169 switch (Action) { 3170 case frontend::ASTDeclList: 3171 case frontend::ASTDump: 3172 case frontend::ASTPrint: 3173 case frontend::ASTView: 3174 case frontend::EmitAssembly: 3175 case frontend::EmitBC: 3176 case frontend::EmitHTML: 3177 case frontend::EmitLLVM: 3178 case frontend::EmitLLVMOnly: 3179 case frontend::EmitCodeGenOnly: 3180 case frontend::EmitObj: 3181 case frontend::FixIt: 3182 case frontend::GenerateModule: 3183 case frontend::GenerateModuleInterface: 3184 case frontend::GenerateHeaderModule: 3185 case frontend::GeneratePCH: 3186 case frontend::GenerateInterfaceYAMLExpV1: 3187 case frontend::GenerateInterfaceTBEExpV1: 3188 case frontend::ParseSyntaxOnly: 3189 case frontend::ModuleFileInfo: 3190 case frontend::VerifyPCH: 3191 case frontend::PluginAction: 3192 case frontend::RewriteObjC: 3193 case frontend::RewriteTest: 3194 case frontend::RunAnalysis: 3195 case frontend::TemplightDump: 3196 case frontend::MigrateSource: 3197 return false; 3198 3199 case frontend::DumpCompilerOptions: 3200 case frontend::DumpRawTokens: 3201 case frontend::DumpTokens: 3202 case frontend::InitOnly: 3203 case frontend::PrintPreamble: 3204 case frontend::PrintPreprocessedInput: 3205 case frontend::RewriteMacros: 3206 case frontend::RunPreprocessorOnly: 3207 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3208 return true; 3209 } 3210 llvm_unreachable("invalid frontend action"); 3211 } 3212 3213 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3214 DiagnosticsEngine &Diags, 3215 frontend::ActionKind Action) { 3216 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 3217 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3218 Args.hasArg(OPT_pch_through_hdrstop_use); 3219 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3220 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ); 3221 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3222 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3223 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3224 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3225 3226 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3227 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3228 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3229 3230 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3231 StringRef Value(A->getValue()); 3232 size_t Comma = Value.find(','); 3233 unsigned Bytes = 0; 3234 unsigned EndOfLine = 0; 3235 3236 if (Comma == StringRef::npos || 3237 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3238 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3239 Diags.Report(diag::err_drv_preamble_format); 3240 else { 3241 Opts.PrecompiledPreambleBytes.first = Bytes; 3242 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3243 } 3244 } 3245 3246 // Add the __CET__ macro if a CFProtection option is set. 3247 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3248 StringRef Name = A->getValue(); 3249 if (Name == "branch") 3250 Opts.addMacroDef("__CET__=1"); 3251 else if (Name == "return") 3252 Opts.addMacroDef("__CET__=2"); 3253 else if (Name == "full") 3254 Opts.addMacroDef("__CET__=3"); 3255 } 3256 3257 // Add macros from the command line. 3258 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3259 if (A->getOption().matches(OPT_D)) 3260 Opts.addMacroDef(A->getValue()); 3261 else 3262 Opts.addMacroUndef(A->getValue()); 3263 } 3264 3265 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3266 3267 // Add the ordered list of -includes. 3268 for (const auto *A : Args.filtered(OPT_include)) 3269 Opts.Includes.emplace_back(A->getValue()); 3270 3271 for (const auto *A : Args.filtered(OPT_chain_include)) 3272 Opts.ChainedIncludes.emplace_back(A->getValue()); 3273 3274 for (const auto *A : Args.filtered(OPT_remap_file)) { 3275 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3276 3277 if (Split.second.empty()) { 3278 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3279 continue; 3280 } 3281 3282 Opts.addRemappedFile(Split.first, Split.second); 3283 } 3284 3285 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3286 StringRef Name = A->getValue(); 3287 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3288 .Case("libc++", ARCXX_libcxx) 3289 .Case("libstdc++", ARCXX_libstdcxx) 3290 .Case("none", ARCXX_nolib) 3291 .Default(~0U); 3292 if (Library == ~0U) 3293 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3294 else 3295 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3296 } 3297 3298 // Always avoid lexing editor placeholders when we're just running the 3299 // preprocessor as we never want to emit the 3300 // "editor placeholder in source file" error in PP only mode. 3301 if (isStrictlyPreprocessorAction(Action)) 3302 Opts.LexEditorPlaceholders = false; 3303 } 3304 3305 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3306 ArgList &Args, 3307 frontend::ActionKind Action) { 3308 if (isStrictlyPreprocessorAction(Action)) 3309 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3310 else 3311 Opts.ShowCPP = 0; 3312 3313 Opts.ShowComments = Args.hasArg(OPT_C); 3314 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3315 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3316 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3317 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3318 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3319 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3320 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3321 } 3322 3323 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3324 DiagnosticsEngine &Diags) { 3325 Opts.CodeModel = getCodeModel(Args, Diags); 3326 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 3327 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3328 StringRef Value = A->getValue(); 3329 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3330 .Case("default", llvm::EABI::Default) 3331 .Case("4", llvm::EABI::EABI4) 3332 .Case("5", llvm::EABI::EABI5) 3333 .Case("gnu", llvm::EABI::GNU) 3334 .Default(llvm::EABI::Unknown); 3335 if (EABIVersion == llvm::EABI::Unknown) 3336 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3337 << Value; 3338 else 3339 Opts.EABIVersion = EABIVersion; 3340 } 3341 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 3342 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 3343 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3344 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 3345 Opts.Triple = Args.getLastArgValue(OPT_triple); 3346 // Use the default target triple if unspecified. 3347 if (Opts.Triple.empty()) 3348 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3349 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3350 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3351 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3352 Opts.NVPTXUseShortPointers = Args.hasFlag( 3353 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3354 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3355 llvm::VersionTuple Version; 3356 if (Version.tryParse(A->getValue())) 3357 Diags.Report(diag::err_drv_invalid_value) 3358 << A->getAsString(Args) << A->getValue(); 3359 else 3360 Opts.SDKVersion = Version; 3361 } 3362 } 3363 3364 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3365 const char *const *ArgBegin, 3366 const char *const *ArgEnd, 3367 DiagnosticsEngine &Diags) { 3368 bool Success = true; 3369 3370 // Parse the arguments. 3371 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 3372 const unsigned IncludedFlagsBitmask = options::CC1Option; 3373 unsigned MissingArgIndex, MissingArgCount; 3374 InputArgList Args = 3375 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 3376 MissingArgCount, IncludedFlagsBitmask); 3377 LangOptions &LangOpts = *Res.getLangOpts(); 3378 3379 // Check for missing argument error. 3380 if (MissingArgCount) { 3381 Diags.Report(diag::err_drv_missing_argument) 3382 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3383 Success = false; 3384 } 3385 3386 // Issue errors on unknown arguments. 3387 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3388 auto ArgString = A->getAsString(Args); 3389 std::string Nearest; 3390 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3391 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3392 else 3393 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3394 << ArgString << Nearest; 3395 Success = false; 3396 } 3397 3398 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3399 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3400 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3401 Success &= 3402 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3403 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3404 ParseCommentArgs(LangOpts.CommentOpts, Args); 3405 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3406 // FIXME: We shouldn't have to pass the DashX option around here 3407 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3408 LangOpts.IsHeaderFile); 3409 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3410 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3411 Res.getTargetOpts(), Res.getFrontendOpts()); 3412 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3413 Res.getFileSystemOpts().WorkingDir); 3414 llvm::Triple T(Res.getTargetOpts().Triple); 3415 if (DashX.getFormat() == InputKind::Precompiled || 3416 DashX.getLanguage() == Language::LLVM_IR) { 3417 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3418 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3419 // what the input type is. 3420 if (Args.hasArg(OPT_fobjc_arc)) 3421 LangOpts.ObjCAutoRefCount = 1; 3422 // PIClevel and PIELevel are needed during code generation and this should be 3423 // set regardless of the input type. 3424 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3425 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3426 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3427 Diags, LangOpts.Sanitize); 3428 } else { 3429 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3430 // FIXME: Should we really be calling this for an Language::Asm input? 3431 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3432 Res.getPreprocessorOpts(), Diags); 3433 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3434 LangOpts.ObjCExceptions = 1; 3435 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3436 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3437 // preprocessed input as we don't expect it to be used with -std=libc++ 3438 // anyway. 3439 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3440 } 3441 } 3442 3443 LangOpts.FunctionAlignment = 3444 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3445 3446 if (LangOpts.CUDA) { 3447 // During CUDA device-side compilation, the aux triple is the 3448 // triple used for host compilation. 3449 if (LangOpts.CUDAIsDevice) 3450 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3451 } 3452 3453 // Set the triple of the host for OpenMP device compile. 3454 if (LangOpts.OpenMPIsDevice) 3455 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3456 3457 // FIXME: Override value name discarding when asan or msan is used because the 3458 // backend passes depend on the name of the alloca in order to print out 3459 // names. 3460 Res.getCodeGenOpts().DiscardValueNames &= 3461 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3462 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3463 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3464 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3465 3466 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3467 Res.getFrontendOpts().ProgramAction); 3468 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3469 Res.getFrontendOpts().ProgramAction); 3470 3471 // Turn on -Wspir-compat for SPIR target. 3472 if (T.isSPIR()) 3473 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3474 3475 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3476 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3477 !Res.getLangOpts()->Sanitize.empty()) { 3478 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3479 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3480 } 3481 return Success; 3482 } 3483 3484 std::string CompilerInvocation::getModuleHash() const { 3485 // Note: For QoI reasons, the things we use as a hash here should all be 3486 // dumped via the -module-info flag. 3487 using llvm::hash_code; 3488 using llvm::hash_value; 3489 using llvm::hash_combine; 3490 3491 // Start the signature with the compiler version. 3492 // FIXME: We'd rather use something more cryptographically sound than 3493 // CityHash, but this will do for now. 3494 hash_code code = hash_value(getClangFullRepositoryVersion()); 3495 3496 // Extend the signature with the language options 3497 #define LANGOPT(Name, Bits, Default, Description) \ 3498 code = hash_combine(code, LangOpts->Name); 3499 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3500 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3501 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3502 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3503 #include "clang/Basic/LangOptions.def" 3504 3505 for (StringRef Feature : LangOpts->ModuleFeatures) 3506 code = hash_combine(code, Feature); 3507 3508 // Extend the signature with the target options. 3509 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3510 TargetOpts->ABI); 3511 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3512 code = hash_combine(code, FeatureAsWritten); 3513 3514 // Extend the signature with preprocessor options. 3515 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3516 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3517 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3518 3519 for (const auto &I : getPreprocessorOpts().Macros) { 3520 // If we're supposed to ignore this macro for the purposes of modules, 3521 // don't put it into the hash. 3522 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3523 // Check whether we're ignoring this macro. 3524 StringRef MacroDef = I.first; 3525 if (hsOpts.ModulesIgnoreMacros.count( 3526 llvm::CachedHashString(MacroDef.split('=').first))) 3527 continue; 3528 } 3529 3530 code = hash_combine(code, I.first, I.second); 3531 } 3532 3533 // Extend the signature with the sysroot and other header search options. 3534 code = hash_combine(code, hsOpts.Sysroot, 3535 hsOpts.ModuleFormat, 3536 hsOpts.UseDebugInfo, 3537 hsOpts.UseBuiltinIncludes, 3538 hsOpts.UseStandardSystemIncludes, 3539 hsOpts.UseStandardCXXIncludes, 3540 hsOpts.UseLibcxx, 3541 hsOpts.ModulesValidateDiagnosticOptions); 3542 code = hash_combine(code, hsOpts.ResourceDir); 3543 3544 // Extend the signature with the user build path. 3545 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3546 3547 // Extend the signature with the module file extensions. 3548 const FrontendOptions &frontendOpts = getFrontendOpts(); 3549 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3550 code = ext->hashExtension(code); 3551 } 3552 3553 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3554 // affects the debug info in the PCM. 3555 if (getCodeGenOpts().DebugTypeExtRefs) 3556 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3557 code = hash_combine(code, KeyValue.first, KeyValue.second); 3558 3559 // Extend the signature with the enabled sanitizers, if at least one is 3560 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3561 SanitizerSet SanHash = LangOpts->Sanitize; 3562 SanHash.clear(getPPTransparentSanitizers()); 3563 if (!SanHash.empty()) 3564 code = hash_combine(code, SanHash.Mask); 3565 3566 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3567 } 3568 3569 template<typename IntTy> 3570 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 3571 IntTy Default, 3572 DiagnosticsEngine *Diags) { 3573 IntTy Res = Default; 3574 if (Arg *A = Args.getLastArg(Id)) { 3575 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 3576 if (Diags) 3577 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 3578 << A->getValue(); 3579 } 3580 } 3581 return Res; 3582 } 3583 3584 namespace clang { 3585 3586 // Declared in clang/Frontend/Utils.h. 3587 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 3588 DiagnosticsEngine *Diags) { 3589 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 3590 } 3591 3592 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 3593 uint64_t Default, 3594 DiagnosticsEngine *Diags) { 3595 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 3596 } 3597 3598 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3599 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3600 DiagnosticsEngine &Diags) { 3601 return createVFSFromCompilerInvocation(CI, Diags, 3602 llvm::vfs::getRealFileSystem()); 3603 } 3604 3605 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3606 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3607 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3608 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3609 return BaseFS; 3610 3611 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3612 // earlier vfs files are on the bottom 3613 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3614 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3615 Result->getBufferForFile(File); 3616 if (!Buffer) { 3617 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3618 continue; 3619 } 3620 3621 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3622 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3623 /*DiagContext*/ nullptr, Result); 3624 if (!FS) { 3625 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3626 continue; 3627 } 3628 3629 Result = FS; 3630 } 3631 return Result; 3632 } 3633 3634 } // namespace clang 3635