1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/LangStandard.h" 22 #include "clang/Basic/ObjCRuntime.h" 23 #include "clang/Basic/Sanitizers.h" 24 #include "clang/Basic/SourceLocation.h" 25 #include "clang/Basic/TargetOptions.h" 26 #include "clang/Basic/Version.h" 27 #include "clang/Basic/Visibility.h" 28 #include "clang/Basic/XRayInstr.h" 29 #include "clang/Config/config.h" 30 #include "clang/Driver/Driver.h" 31 #include "clang/Driver/DriverDiagnostic.h" 32 #include "clang/Driver/Options.h" 33 #include "clang/Frontend/CommandLineSourceLoc.h" 34 #include "clang/Frontend/DependencyOutputOptions.h" 35 #include "clang/Frontend/FrontendDiagnostic.h" 36 #include "clang/Frontend/FrontendOptions.h" 37 #include "clang/Frontend/FrontendPluginRegistry.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/Utils.h" 41 #include "clang/Lex/HeaderSearchOptions.h" 42 #include "clang/Lex/PreprocessorOptions.h" 43 #include "clang/Sema/CodeCompleteOptions.h" 44 #include "clang/Serialization/ASTBitCodes.h" 45 #include "clang/Serialization/ModuleFileExtension.h" 46 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 47 #include "llvm/ADT/APInt.h" 48 #include "llvm/ADT/ArrayRef.h" 49 #include "llvm/ADT/CachedHashString.h" 50 #include "llvm/ADT/Hashing.h" 51 #include "llvm/ADT/None.h" 52 #include "llvm/ADT/Optional.h" 53 #include "llvm/ADT/SmallString.h" 54 #include "llvm/ADT/SmallVector.h" 55 #include "llvm/ADT/StringRef.h" 56 #include "llvm/ADT/StringSwitch.h" 57 #include "llvm/ADT/Triple.h" 58 #include "llvm/ADT/Twine.h" 59 #include "llvm/IR/DebugInfoMetadata.h" 60 #include "llvm/Linker/Linker.h" 61 #include "llvm/MC/MCTargetOptions.h" 62 #include "llvm/Option/Arg.h" 63 #include "llvm/Option/ArgList.h" 64 #include "llvm/Option/OptSpecifier.h" 65 #include "llvm/Option/OptTable.h" 66 #include "llvm/Option/Option.h" 67 #include "llvm/ProfileData/InstrProfReader.h" 68 #include "llvm/Support/CodeGen.h" 69 #include "llvm/Support/Compiler.h" 70 #include "llvm/Support/Error.h" 71 #include "llvm/Support/ErrorHandling.h" 72 #include "llvm/Support/ErrorOr.h" 73 #include "llvm/Support/FileSystem.h" 74 #include "llvm/Support/Host.h" 75 #include "llvm/Support/MathExtras.h" 76 #include "llvm/Support/MemoryBuffer.h" 77 #include "llvm/Support/Path.h" 78 #include "llvm/Support/Process.h" 79 #include "llvm/Support/Regex.h" 80 #include "llvm/Support/VersionTuple.h" 81 #include "llvm/Support/VirtualFileSystem.h" 82 #include "llvm/Support/raw_ostream.h" 83 #include "llvm/Target/TargetOptions.h" 84 #include <algorithm> 85 #include <atomic> 86 #include <cassert> 87 #include <cstddef> 88 #include <cstring> 89 #include <memory> 90 #include <string> 91 #include <tuple> 92 #include <utility> 93 #include <vector> 94 95 using namespace clang; 96 using namespace driver; 97 using namespace options; 98 using namespace llvm::opt; 99 100 //===----------------------------------------------------------------------===// 101 // Initialization. 102 //===----------------------------------------------------------------------===// 103 104 CompilerInvocationBase::CompilerInvocationBase() 105 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 106 DiagnosticOpts(new DiagnosticOptions()), 107 HeaderSearchOpts(new HeaderSearchOptions()), 108 PreprocessorOpts(new PreprocessorOptions()) {} 109 110 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 111 : LangOpts(new LangOptions(*X.getLangOpts())), 112 TargetOpts(new TargetOptions(X.getTargetOpts())), 113 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 114 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 115 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 116 117 CompilerInvocationBase::~CompilerInvocationBase() = default; 118 119 //===----------------------------------------------------------------------===// 120 // Deserialization (from args) 121 //===----------------------------------------------------------------------===// 122 123 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 124 DiagnosticsEngine &Diags) { 125 unsigned DefaultOpt = llvm::CodeGenOpt::None; 126 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 127 DefaultOpt = llvm::CodeGenOpt::Default; 128 129 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 130 if (A->getOption().matches(options::OPT_O0)) 131 return llvm::CodeGenOpt::None; 132 133 if (A->getOption().matches(options::OPT_Ofast)) 134 return llvm::CodeGenOpt::Aggressive; 135 136 assert(A->getOption().matches(options::OPT_O)); 137 138 StringRef S(A->getValue()); 139 if (S == "s" || S == "z" || S.empty()) 140 return llvm::CodeGenOpt::Default; 141 142 if (S == "g") 143 return llvm::CodeGenOpt::Less; 144 145 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 146 } 147 148 return DefaultOpt; 149 } 150 151 static unsigned getOptimizationLevelSize(ArgList &Args) { 152 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 153 if (A->getOption().matches(options::OPT_O)) { 154 switch (A->getValue()[0]) { 155 default: 156 return 0; 157 case 's': 158 return 1; 159 case 'z': 160 return 2; 161 } 162 } 163 } 164 return 0; 165 } 166 167 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 168 OptSpecifier GroupWithValue, 169 std::vector<std::string> &Diagnostics) { 170 for (auto *A : Args.filtered(Group)) { 171 if (A->getOption().getKind() == Option::FlagClass) { 172 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 173 // its name (minus the "W" or "R" at the beginning) to the warning list. 174 Diagnostics.push_back( 175 std::string(A->getOption().getName().drop_front(1))); 176 } else if (A->getOption().matches(GroupWithValue)) { 177 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 178 Diagnostics.push_back( 179 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 180 } else { 181 // Otherwise, add its value (for OPT_W_Joined and similar). 182 for (const auto *Arg : A->getValues()) 183 Diagnostics.emplace_back(Arg); 184 } 185 } 186 } 187 188 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 189 // it won't verify the input. 190 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 191 DiagnosticsEngine *Diags); 192 193 static void getAllNoBuiltinFuncValues(ArgList &Args, 194 std::vector<std::string> &Funcs) { 195 SmallVector<const char *, 8> Values; 196 for (const auto &Arg : Args) { 197 const Option &O = Arg->getOption(); 198 if (O.matches(options::OPT_fno_builtin_)) { 199 const char *FuncName = Arg->getValue(); 200 if (Builtin::Context::isBuiltinFunc(FuncName)) 201 Values.push_back(FuncName); 202 } 203 } 204 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 205 } 206 207 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 208 DiagnosticsEngine &Diags) { 209 bool Success = true; 210 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 211 StringRef Name = A->getValue(); 212 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 213 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 214 .Case(CMDFLAG, NAME##Model) 215 #include "clang/StaticAnalyzer/Core/Analyses.def" 216 .Default(NumStores); 217 if (Value == NumStores) { 218 Diags.Report(diag::err_drv_invalid_value) 219 << A->getAsString(Args) << Name; 220 Success = false; 221 } else { 222 Opts.AnalysisStoreOpt = Value; 223 } 224 } 225 226 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 227 StringRef Name = A->getValue(); 228 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 229 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 230 .Case(CMDFLAG, NAME##Model) 231 #include "clang/StaticAnalyzer/Core/Analyses.def" 232 .Default(NumConstraints); 233 if (Value == NumConstraints) { 234 Diags.Report(diag::err_drv_invalid_value) 235 << A->getAsString(Args) << Name; 236 Success = false; 237 } else { 238 Opts.AnalysisConstraintsOpt = Value; 239 } 240 } 241 242 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 243 StringRef Name = A->getValue(); 244 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 245 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 246 .Case(CMDFLAG, PD_##NAME) 247 #include "clang/StaticAnalyzer/Core/Analyses.def" 248 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 249 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 250 Diags.Report(diag::err_drv_invalid_value) 251 << A->getAsString(Args) << Name; 252 Success = false; 253 } else { 254 Opts.AnalysisDiagOpt = Value; 255 } 256 } 257 258 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 259 StringRef Name = A->getValue(); 260 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 261 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 262 .Case(CMDFLAG, NAME) 263 #include "clang/StaticAnalyzer/Core/Analyses.def" 264 .Default(NumPurgeModes); 265 if (Value == NumPurgeModes) { 266 Diags.Report(diag::err_drv_invalid_value) 267 << A->getAsString(Args) << Name; 268 Success = false; 269 } else { 270 Opts.AnalysisPurgeOpt = Value; 271 } 272 } 273 274 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 275 StringRef Name = A->getValue(); 276 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 277 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 278 .Case(CMDFLAG, NAME) 279 #include "clang/StaticAnalyzer/Core/Analyses.def" 280 .Default(NumInliningModes); 281 if (Value == NumInliningModes) { 282 Diags.Report(diag::err_drv_invalid_value) 283 << A->getAsString(Args) << Name; 284 Success = false; 285 } else { 286 Opts.InliningMode = Value; 287 } 288 } 289 290 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 291 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 292 Opts.ShowCheckerHelpDeveloper = 293 Args.hasArg(OPT_analyzer_checker_help_developer); 294 295 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 296 Opts.ShowCheckerOptionAlphaList = 297 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 298 Opts.ShowCheckerOptionDeveloperList = 299 Args.hasArg(OPT_analyzer_checker_option_help_developer); 300 301 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 302 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 303 Opts.ShouldEmitErrorsOnInvalidConfigValue = 304 /* negated */!llvm::StringSwitch<bool>( 305 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 306 .Case("true", true) 307 .Case("false", false) 308 .Default(false); 309 Opts.DisableAllCheckers = Args.hasArg(OPT_analyzer_disable_all_checks); 310 311 Opts.visualizeExplodedGraphWithGraphViz = 312 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 313 Opts.DumpExplodedGraphTo = 314 std::string(Args.getLastArgValue(OPT_analyzer_dump_egraph)); 315 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 316 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 317 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 318 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 319 Opts.AnalyzeNestedBlocks = 320 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 321 Opts.AnalyzeSpecificFunction = 322 std::string(Args.getLastArgValue(OPT_analyze_function)); 323 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 324 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 325 Opts.maxBlockVisitOnPath = 326 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 327 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 328 Opts.InlineMaxStackDepth = 329 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 330 Opts.InlineMaxStackDepth, Diags); 331 332 Opts.CheckersAndPackages.clear(); 333 for (const Arg *A : 334 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 335 A->claim(); 336 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 337 // We can have a list of comma separated checker names, e.g: 338 // '-analyzer-checker=cocoa,unix' 339 StringRef CheckerAndPackageList = A->getValue(); 340 SmallVector<StringRef, 16> CheckersAndPackages; 341 CheckerAndPackageList.split(CheckersAndPackages, ","); 342 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 343 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 344 IsEnabled); 345 } 346 347 // Go through the analyzer configuration options. 348 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 349 350 // We can have a list of comma separated config names, e.g: 351 // '-analyzer-config key1=val1,key2=val2' 352 StringRef configList = A->getValue(); 353 SmallVector<StringRef, 4> configVals; 354 configList.split(configVals, ","); 355 for (const auto &configVal : configVals) { 356 StringRef key, val; 357 std::tie(key, val) = configVal.split("="); 358 if (val.empty()) { 359 Diags.Report(SourceLocation(), 360 diag::err_analyzer_config_no_value) << configVal; 361 Success = false; 362 break; 363 } 364 if (val.find('=') != StringRef::npos) { 365 Diags.Report(SourceLocation(), 366 diag::err_analyzer_config_multiple_values) 367 << configVal; 368 Success = false; 369 break; 370 } 371 372 // TODO: Check checker options too, possibly in CheckerRegistry. 373 // Leave unknown non-checker configs unclaimed. 374 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 375 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 376 Diags.Report(diag::err_analyzer_config_unknown) << key; 377 continue; 378 } 379 380 A->claim(); 381 Opts.Config[key] = std::string(val); 382 } 383 } 384 385 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 386 parseAnalyzerConfigs(Opts, &Diags); 387 else 388 parseAnalyzerConfigs(Opts, nullptr); 389 390 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 391 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 392 if (i != 0) 393 os << " "; 394 os << Args.getArgString(i); 395 } 396 os.flush(); 397 398 return Success; 399 } 400 401 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 402 StringRef OptionName, StringRef DefaultVal) { 403 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 404 } 405 406 static void initOption(AnalyzerOptions::ConfigTable &Config, 407 DiagnosticsEngine *Diags, 408 StringRef &OptionField, StringRef Name, 409 StringRef DefaultVal) { 410 // String options may be known to invalid (e.g. if the expected string is a 411 // file name, but the file does not exist), those will have to be checked in 412 // parseConfigs. 413 OptionField = getStringOption(Config, Name, DefaultVal); 414 } 415 416 static void initOption(AnalyzerOptions::ConfigTable &Config, 417 DiagnosticsEngine *Diags, 418 bool &OptionField, StringRef Name, bool DefaultVal) { 419 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 420 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 421 .Case("true", true) 422 .Case("false", false) 423 .Default(None); 424 425 if (!PossiblyInvalidVal) { 426 if (Diags) 427 Diags->Report(diag::err_analyzer_config_invalid_input) 428 << Name << "a boolean"; 429 else 430 OptionField = DefaultVal; 431 } else 432 OptionField = PossiblyInvalidVal.getValue(); 433 } 434 435 static void initOption(AnalyzerOptions::ConfigTable &Config, 436 DiagnosticsEngine *Diags, 437 unsigned &OptionField, StringRef Name, 438 unsigned DefaultVal) { 439 440 OptionField = DefaultVal; 441 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 442 .getAsInteger(0, OptionField); 443 if (Diags && HasFailed) 444 Diags->Report(diag::err_analyzer_config_invalid_input) 445 << Name << "an unsigned"; 446 } 447 448 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 449 DiagnosticsEngine *Diags) { 450 // TODO: There's no need to store the entire configtable, it'd be plenty 451 // enough tostore checker options. 452 453 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 454 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 455 456 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 457 SHALLOW_VAL, DEEP_VAL) \ 458 switch (AnOpts.getUserMode()) { \ 459 case UMK_Shallow: \ 460 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 461 break; \ 462 case UMK_Deep: \ 463 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 464 break; \ 465 } \ 466 467 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 468 #undef ANALYZER_OPTION 469 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 470 471 // At this point, AnalyzerOptions is configured. Let's validate some options. 472 473 // FIXME: Here we try to validate the silenced checkers or packages are valid. 474 // The current approach only validates the registered checkers which does not 475 // contain the runtime enabled checkers and optimally we would validate both. 476 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 477 std::vector<StringRef> Checkers = 478 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 479 std::vector<StringRef> Packages = 480 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 481 482 SmallVector<StringRef, 16> CheckersAndPackages; 483 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 484 485 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 486 if (Diags) { 487 bool IsChecker = CheckerOrPackage.contains('.'); 488 bool IsValidName = 489 IsChecker 490 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 491 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 492 493 if (!IsValidName) 494 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 495 << CheckerOrPackage; 496 } 497 498 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 499 } 500 } 501 502 if (!Diags) 503 return; 504 505 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 506 Diags->Report(diag::err_analyzer_config_invalid_input) 507 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 508 509 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 510 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 511 << "a filename"; 512 513 if (!AnOpts.ModelPath.empty() && 514 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 515 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 516 << "a filename"; 517 } 518 519 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 520 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 521 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 522 return true; 523 } 524 525 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 526 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 527 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 528 } 529 530 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 531 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 532 StringRef Value = A->getValue(); 533 if (Value == "small" || Value == "kernel" || Value == "medium" || 534 Value == "large" || Value == "tiny") 535 return Value; 536 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 537 } 538 return "default"; 539 } 540 541 static llvm::Reloc::Model getRelocModel(ArgList &Args, 542 DiagnosticsEngine &Diags) { 543 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 544 StringRef Value = A->getValue(); 545 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 546 .Case("static", llvm::Reloc::Static) 547 .Case("pic", llvm::Reloc::PIC_) 548 .Case("ropi", llvm::Reloc::ROPI) 549 .Case("rwpi", llvm::Reloc::RWPI) 550 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 551 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 552 .Default(None); 553 if (RM.hasValue()) 554 return *RM; 555 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 556 } 557 return llvm::Reloc::PIC_; 558 } 559 560 /// Create a new Regex instance out of the string value in \p RpassArg. 561 /// It returns a pointer to the newly generated Regex instance. 562 static std::shared_ptr<llvm::Regex> 563 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 564 Arg *RpassArg) { 565 StringRef Val = RpassArg->getValue(); 566 std::string RegexError; 567 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 568 if (!Pattern->isValid(RegexError)) { 569 Diags.Report(diag::err_drv_optimization_remark_pattern) 570 << RegexError << RpassArg->getAsString(Args); 571 Pattern.reset(); 572 } 573 return Pattern; 574 } 575 576 static bool parseDiagnosticLevelMask(StringRef FlagName, 577 const std::vector<std::string> &Levels, 578 DiagnosticsEngine *Diags, 579 DiagnosticLevelMask &M) { 580 bool Success = true; 581 for (const auto &Level : Levels) { 582 DiagnosticLevelMask const PM = 583 llvm::StringSwitch<DiagnosticLevelMask>(Level) 584 .Case("note", DiagnosticLevelMask::Note) 585 .Case("remark", DiagnosticLevelMask::Remark) 586 .Case("warning", DiagnosticLevelMask::Warning) 587 .Case("error", DiagnosticLevelMask::Error) 588 .Default(DiagnosticLevelMask::None); 589 if (PM == DiagnosticLevelMask::None) { 590 Success = false; 591 if (Diags) 592 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 593 } 594 M = M | PM; 595 } 596 return Success; 597 } 598 599 static void parseSanitizerKinds(StringRef FlagName, 600 const std::vector<std::string> &Sanitizers, 601 DiagnosticsEngine &Diags, SanitizerSet &S) { 602 for (const auto &Sanitizer : Sanitizers) { 603 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 604 if (K == SanitizerMask()) 605 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 606 else 607 S.set(K, true); 608 } 609 } 610 611 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 612 ArgList &Args, DiagnosticsEngine &D, 613 XRayInstrSet &S) { 614 llvm::SmallVector<StringRef, 2> BundleParts; 615 llvm::SplitString(Bundle, BundleParts, ","); 616 for (const auto &B : BundleParts) { 617 auto Mask = parseXRayInstrValue(B); 618 if (Mask == XRayInstrKind::None) 619 if (B != "none") 620 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 621 else 622 S.Mask = Mask; 623 else if (Mask == XRayInstrKind::All) 624 S.Mask = Mask; 625 else 626 S.set(Mask, true); 627 } 628 } 629 630 // Set the profile kind for fprofile-instrument. 631 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 632 DiagnosticsEngine &Diags) { 633 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 634 if (A == nullptr) 635 return; 636 StringRef S = A->getValue(); 637 unsigned I = llvm::StringSwitch<unsigned>(S) 638 .Case("none", CodeGenOptions::ProfileNone) 639 .Case("clang", CodeGenOptions::ProfileClangInstr) 640 .Case("llvm", CodeGenOptions::ProfileIRInstr) 641 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 642 .Default(~0U); 643 if (I == ~0U) { 644 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 645 << S; 646 return; 647 } 648 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 649 Opts.setProfileInstr(Instrumentor); 650 } 651 652 // Set the profile kind using fprofile-instrument-use-path. 653 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 654 const Twine &ProfileName) { 655 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 656 // In error, return silently and let Clang PGOUse report the error message. 657 if (auto E = ReaderOrErr.takeError()) { 658 llvm::consumeError(std::move(E)); 659 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 660 return; 661 } 662 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 663 std::move(ReaderOrErr.get()); 664 if (PGOReader->isIRLevelProfile()) { 665 if (PGOReader->hasCSIRLevelProfile()) 666 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 667 else 668 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 669 } else 670 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 671 } 672 673 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 674 DiagnosticsEngine &Diags, 675 const TargetOptions &TargetOpts, 676 const FrontendOptions &FrontendOpts) { 677 bool Success = true; 678 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 679 680 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 681 // TODO: This could be done in Driver 682 unsigned MaxOptLevel = 3; 683 if (OptimizationLevel > MaxOptLevel) { 684 // If the optimization level is not supported, fall back on the default 685 // optimization 686 Diags.Report(diag::warn_drv_optimization_value) 687 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 688 OptimizationLevel = MaxOptLevel; 689 } 690 Opts.OptimizationLevel = OptimizationLevel; 691 692 // At O0 we want to fully disable inlining outside of cases marked with 693 // 'alwaysinline' that are required for correctness. 694 Opts.setInlining((Opts.OptimizationLevel == 0) 695 ? CodeGenOptions::OnlyAlwaysInlining 696 : CodeGenOptions::NormalInlining); 697 // Explicit inlining flags can disable some or all inlining even at 698 // optimization levels above zero. 699 if (Arg *InlineArg = Args.getLastArg( 700 options::OPT_finline_functions, options::OPT_finline_hint_functions, 701 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 702 if (Opts.OptimizationLevel > 0) { 703 const Option &InlineOpt = InlineArg->getOption(); 704 if (InlineOpt.matches(options::OPT_finline_functions)) 705 Opts.setInlining(CodeGenOptions::NormalInlining); 706 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 707 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 708 else 709 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 710 } 711 } 712 713 Opts.ExperimentalNewPassManager = Args.hasFlag( 714 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 715 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 716 717 Opts.DebugPassManager = 718 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 719 /* Default */ false); 720 721 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 722 StringRef Name = A->getValue(); 723 if (Name == "Accelerate") 724 Opts.setVecLib(CodeGenOptions::Accelerate); 725 else if (Name == "MASSV") 726 Opts.setVecLib(CodeGenOptions::MASSV); 727 else if (Name == "SVML") 728 Opts.setVecLib(CodeGenOptions::SVML); 729 else if (Name == "none") 730 Opts.setVecLib(CodeGenOptions::NoLibrary); 731 else 732 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 733 } 734 735 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 736 unsigned Val = 737 llvm::StringSwitch<unsigned>(A->getValue()) 738 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 739 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 740 .Case("constructor", codegenoptions::DebugInfoConstructor) 741 .Case("limited", codegenoptions::LimitedDebugInfo) 742 .Case("standalone", codegenoptions::FullDebugInfo) 743 .Default(~0U); 744 if (Val == ~0U) 745 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 746 << A->getValue(); 747 else 748 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 749 } 750 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 751 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 752 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 753 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 754 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 755 .Default(~0U); 756 if (Val == ~0U) 757 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 758 << A->getValue(); 759 else 760 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 761 } 762 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 763 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 764 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 765 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 766 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 767 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 768 Opts.VirtualFunctionElimination = 769 Args.hasArg(OPT_fvirtual_function_elimination); 770 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 771 Opts.SplitDwarfFile = std::string(Args.getLastArgValue(OPT_split_dwarf_file)); 772 Opts.SplitDwarfOutput = 773 std::string(Args.getLastArgValue(OPT_split_dwarf_output)); 774 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 775 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 776 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 777 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 778 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 779 780 Opts.ForceDwarfFrameSection = 781 Args.hasFlag(OPT_fforce_dwarf_frame, OPT_fno_force_dwarf_frame, false); 782 783 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 784 auto Split = StringRef(Arg).split('='); 785 Opts.DebugPrefixMap.insert( 786 {std::string(Split.first), std::string(Split.second)}); 787 } 788 789 if (const Arg *A = 790 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 791 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 792 793 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 794 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 795 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 796 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 797 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 798 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 799 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 800 OPT_fuse_register_sized_bitfield_access); 801 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 802 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 803 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 804 Args.hasArg(OPT_new_struct_path_tbaa); 805 Opts.FineGrainedBitfieldAccesses = 806 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 807 OPT_fno_fine_grained_bitfield_accesses, false); 808 Opts.DwarfDebugFlags = 809 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 810 Opts.RecordCommandLine = 811 std::string(Args.getLastArgValue(OPT_record_command_line)); 812 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 813 Opts.NoCommon = Args.hasArg(OPT_fno_common); 814 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables); 815 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 816 Opts.OptimizeSize = getOptimizationLevelSize(Args); 817 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 818 Args.hasArg(OPT_ffreestanding)); 819 if (Opts.SimplifyLibCalls) 820 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 821 Opts.UnrollLoops = 822 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 823 (Opts.OptimizationLevel > 1)); 824 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 825 826 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 827 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 828 Opts.SampleProfileFile = 829 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 830 Opts.DebugInfoForProfiling = Args.hasFlag( 831 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 832 Opts.DebugNameTable = static_cast<unsigned>( 833 Args.hasArg(OPT_ggnu_pubnames) 834 ? llvm::DICompileUnit::DebugNameTableKind::GNU 835 : Args.hasArg(OPT_gpubnames) 836 ? llvm::DICompileUnit::DebugNameTableKind::Default 837 : llvm::DICompileUnit::DebugNameTableKind::None); 838 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 839 840 setPGOInstrumentor(Opts, Args, Diags); 841 Opts.InstrProfileOutput = 842 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 843 Opts.ProfileInstrumentUsePath = 844 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 845 if (!Opts.ProfileInstrumentUsePath.empty()) 846 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 847 Opts.ProfileRemappingFile = 848 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 849 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 850 Diags.Report(diag::err_drv_argument_only_allowed_with) 851 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 852 << "-fexperimental-new-pass-manager"; 853 } 854 855 Opts.CoverageMapping = 856 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 857 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 858 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 859 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 860 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 861 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 862 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 863 Opts.RegisterGlobalDtorsWithAtExit = 864 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 865 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 866 Opts.CodeModel = TargetOpts.CodeModel; 867 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 868 869 // Handle -mframe-pointer option. 870 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 871 CodeGenOptions::FramePointerKind FP; 872 StringRef Name = A->getValue(); 873 bool ValidFP = true; 874 if (Name == "none") 875 FP = CodeGenOptions::FramePointerKind::None; 876 else if (Name == "non-leaf") 877 FP = CodeGenOptions::FramePointerKind::NonLeaf; 878 else if (Name == "all") 879 FP = CodeGenOptions::FramePointerKind::All; 880 else { 881 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 882 Success = false; 883 ValidFP = false; 884 } 885 if (ValidFP) 886 Opts.setFramePointer(FP); 887 } 888 889 Opts.DisableFree = Args.hasArg(OPT_disable_free); 890 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 891 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 892 Opts.NoEscapingBlockTailCalls = 893 Args.hasArg(OPT_fno_escaping_block_tail_calls); 894 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 895 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 896 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 897 Args.hasArg(OPT_cl_fast_relaxed_math); 898 Opts.LimitFloatPrecision = 899 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 900 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 901 Args.hasArg(OPT_cl_finite_math_only) || 902 Args.hasArg(OPT_cl_fast_relaxed_math)); 903 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 904 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 905 Args.hasArg(OPT_cl_finite_math_only) || 906 Args.hasArg(OPT_cl_fast_relaxed_math)); 907 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 908 Args.hasArg(OPT_cl_no_signed_zeros) || 909 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 910 Args.hasArg(OPT_cl_fast_relaxed_math)); 911 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 912 Opts.CorrectlyRoundedDivSqrt = 913 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 914 Opts.UniformWGSize = 915 Args.hasArg(OPT_cl_uniform_work_group_size); 916 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 917 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 918 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 919 Opts.StrictFloatCastOverflow = 920 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 921 922 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 923 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 924 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 925 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 926 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 927 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 928 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 929 Opts.IncrementalLinkerCompatible = 930 Args.hasArg(OPT_mincremental_linker_compatible); 931 Opts.PIECopyRelocations = 932 Args.hasArg(OPT_mpie_copy_relocations); 933 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 934 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 935 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 936 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 937 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 938 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 939 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 940 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 941 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 942 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 943 Args.hasArg(OPT_cl_fast_relaxed_math); 944 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 945 Opts.RelocationModel = getRelocModel(Args, Diags); 946 Opts.ThreadModel = 947 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 948 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 949 Diags.Report(diag::err_drv_invalid_value) 950 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 951 << Opts.ThreadModel; 952 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 953 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 954 955 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 956 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 957 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 958 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 959 960 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 961 962 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 963 964 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 965 966 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 967 968 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 969 Opts.PrepareForThinLTO = false; 970 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 971 StringRef S = A->getValue(); 972 if (S == "thin") 973 Opts.PrepareForThinLTO = true; 974 else if (S != "full") 975 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 976 } 977 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 978 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 979 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 980 if (IK.getLanguage() != Language::LLVM_IR) 981 Diags.Report(diag::err_drv_argument_only_allowed_with) 982 << A->getAsString(Args) << "-x ir"; 983 Opts.ThinLTOIndexFile = 984 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 985 } 986 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 987 Opts.SaveTempsFilePrefix = 988 llvm::StringSwitch<std::string>(A->getValue()) 989 .Case("obj", FrontendOpts.OutputFile) 990 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 991 992 Opts.ThinLinkBitcodeFile = 993 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 994 995 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 996 997 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 998 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 999 1000 Opts.PreferVectorWidth = 1001 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1002 1003 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1004 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1005 1006 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1007 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1008 1009 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 1010 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1011 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1012 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1013 Opts.CoverageDataFile = 1014 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1015 Opts.CoverageNotesFile = 1016 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1017 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 1018 Opts.CoverageNoFunctionNamesInData = 1019 Args.hasArg(OPT_coverage_no_function_names_in_data); 1020 Opts.ProfileFilterFiles = 1021 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1022 Opts.ProfileExcludeFiles = 1023 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1024 Opts.CoverageExitBlockBeforeBody = 1025 Args.hasArg(OPT_coverage_exit_block_before_body); 1026 if (Args.hasArg(OPT_coverage_version_EQ)) { 1027 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1028 if (CoverageVersion.size() != 4) { 1029 Diags.Report(diag::err_drv_invalid_value) 1030 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1031 << CoverageVersion; 1032 } else { 1033 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1034 } 1035 } 1036 } 1037 // Handle -fembed-bitcode option. 1038 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1039 StringRef Name = A->getValue(); 1040 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1041 .Case("off", CodeGenOptions::Embed_Off) 1042 .Case("all", CodeGenOptions::Embed_All) 1043 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1044 .Case("marker", CodeGenOptions::Embed_Marker) 1045 .Default(~0U); 1046 if (Model == ~0U) { 1047 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1048 Success = false; 1049 } else 1050 Opts.setEmbedBitcode( 1051 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1052 } 1053 // FIXME: For backend options that are not yet recorded as function 1054 // attributes in the IR, keep track of them so we can embed them in a 1055 // separate data section and use them when building the bitcode. 1056 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1057 for (const auto &A : Args) { 1058 // Do not encode output and input. 1059 if (A->getOption().getID() == options::OPT_o || 1060 A->getOption().getID() == options::OPT_INPUT || 1061 A->getOption().getID() == options::OPT_x || 1062 A->getOption().getID() == options::OPT_fembed_bitcode || 1063 (A->getOption().getGroup().isValid() && 1064 A->getOption().getGroup().getID() == options::OPT_W_Group)) 1065 continue; 1066 ArgStringList ASL; 1067 A->render(Args, ASL); 1068 for (const auto &arg : ASL) { 1069 StringRef ArgStr(arg); 1070 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1071 // using \00 to separate each commandline options. 1072 Opts.CmdArgs.push_back('\0'); 1073 } 1074 } 1075 } 1076 1077 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1078 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1079 Opts.InstrumentFunctionsAfterInlining = 1080 Args.hasArg(OPT_finstrument_functions_after_inlining); 1081 Opts.InstrumentFunctionEntryBare = 1082 Args.hasArg(OPT_finstrument_function_entry_bare); 1083 1084 Opts.XRayInstrumentFunctions = 1085 Args.hasArg(OPT_fxray_instrument); 1086 Opts.XRayAlwaysEmitCustomEvents = 1087 Args.hasArg(OPT_fxray_always_emit_customevents); 1088 Opts.XRayAlwaysEmitTypedEvents = 1089 Args.hasArg(OPT_fxray_always_emit_typedevents); 1090 Opts.XRayInstructionThreshold = 1091 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1092 Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops); 1093 1094 auto XRayInstrBundles = 1095 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1096 if (XRayInstrBundles.empty()) 1097 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1098 else 1099 for (const auto &A : XRayInstrBundles) 1100 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1101 Diags, Opts.XRayInstrumentationBundle); 1102 1103 Opts.PatchableFunctionEntryCount = 1104 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1105 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1106 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1107 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1108 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1109 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1110 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1111 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1112 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1113 1114 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1115 StringRef Name = A->getValue(); 1116 if (Name == "full") { 1117 Opts.CFProtectionReturn = 1; 1118 Opts.CFProtectionBranch = 1; 1119 } else if (Name == "return") 1120 Opts.CFProtectionReturn = 1; 1121 else if (Name == "branch") 1122 Opts.CFProtectionBranch = 1; 1123 else if (Name != "none") { 1124 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1125 Success = false; 1126 } 1127 } 1128 1129 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1130 OPT_compress_debug_sections_EQ)) { 1131 if (A->getOption().getID() == OPT_compress_debug_sections) { 1132 // TODO: be more clever about the compression type auto-detection 1133 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1134 } else { 1135 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1136 .Case("none", llvm::DebugCompressionType::None) 1137 .Case("zlib", llvm::DebugCompressionType::Z) 1138 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1139 .Default(llvm::DebugCompressionType::None); 1140 Opts.setCompressDebugSections(DCT); 1141 } 1142 } 1143 1144 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1145 Opts.DebugCompilationDir = 1146 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1147 for (auto *A : 1148 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1149 CodeGenOptions::BitcodeFileToLink F; 1150 F.Filename = A->getValue(); 1151 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1152 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1153 // When linking CUDA bitcode, propagate function attributes so that 1154 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1155 F.PropagateAttrs = true; 1156 F.Internalize = true; 1157 } 1158 Opts.LinkBitcodeFiles.push_back(F); 1159 } 1160 Opts.SanitizeCoverageType = 1161 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1162 Opts.SanitizeCoverageIndirectCalls = 1163 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1164 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1165 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1166 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1167 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1168 Opts.SanitizeCoverage8bitCounters = 1169 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1170 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1171 Opts.SanitizeCoverageTracePCGuard = 1172 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1173 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1174 Opts.SanitizeCoverageInline8bitCounters = 1175 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1176 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1177 Opts.SanitizeCoverageStackDepth = 1178 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1179 Opts.SanitizeMemoryTrackOrigins = 1180 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1181 Opts.SanitizeMemoryUseAfterDtor = 1182 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1183 OPT_fno_sanitize_memory_use_after_dtor, 1184 false); 1185 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1186 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1187 Opts.SanitizeCfiICallGeneralizePointers = 1188 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1189 Opts.SanitizeCfiCanonicalJumpTables = 1190 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1191 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1192 if (Arg *A = Args.getLastArg( 1193 OPT_fsanitize_address_poison_custom_array_cookie, 1194 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1195 Opts.SanitizeAddressPoisonCustomArrayCookie = 1196 A->getOption().getID() == 1197 OPT_fsanitize_address_poison_custom_array_cookie; 1198 } 1199 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1200 OPT_fno_sanitize_address_use_after_scope)) { 1201 Opts.SanitizeAddressUseAfterScope = 1202 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1203 } 1204 Opts.SanitizeAddressGlobalsDeadStripping = 1205 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1206 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1207 OPT_fno_sanitize_address_use_odr_indicator)) { 1208 Opts.SanitizeAddressUseOdrIndicator = 1209 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1210 } 1211 Opts.SSPBufferSize = 1212 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1213 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1214 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1215 StringRef Val = A->getValue(); 1216 unsigned StackAlignment = Opts.StackAlignment; 1217 Val.getAsInteger(10, StackAlignment); 1218 Opts.StackAlignment = StackAlignment; 1219 } 1220 1221 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1222 StringRef Val = A->getValue(); 1223 unsigned StackProbeSize = Opts.StackProbeSize; 1224 Val.getAsInteger(0, StackProbeSize); 1225 Opts.StackProbeSize = StackProbeSize; 1226 } 1227 1228 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1229 1230 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1231 1232 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1233 StringRef Name = A->getValue(); 1234 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1235 .Case("legacy", CodeGenOptions::Legacy) 1236 .Case("non-legacy", CodeGenOptions::NonLegacy) 1237 .Case("mixed", CodeGenOptions::Mixed) 1238 .Default(~0U); 1239 if (Method == ~0U) { 1240 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1241 Success = false; 1242 } else { 1243 Opts.setObjCDispatchMethod( 1244 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1245 } 1246 } 1247 1248 1249 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1250 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1251 1252 if (Args.getLastArg(OPT_femulated_tls) || 1253 Args.getLastArg(OPT_fno_emulated_tls)) { 1254 Opts.ExplicitEmulatedTLS = true; 1255 Opts.EmulatedTLS = 1256 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1257 } 1258 1259 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1260 StringRef Name = A->getValue(); 1261 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1262 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1263 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1264 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1265 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1266 .Default(~0U); 1267 if (Model == ~0U) { 1268 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1269 Success = false; 1270 } else { 1271 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1272 } 1273 } 1274 1275 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1276 1277 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1278 StringRef Val = A->getValue(); 1279 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1280 if (!Opts.FPDenormalMode.isValid()) 1281 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1282 } 1283 1284 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1285 StringRef Val = A->getValue(); 1286 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1287 if (!Opts.FP32DenormalMode.isValid()) 1288 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1289 } 1290 1291 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1292 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1293 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1294 } else { 1295 assert(A->getOption().matches(OPT_freg_struct_return)); 1296 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1297 } 1298 } 1299 1300 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1301 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1302 bool NeedLocTracking = false; 1303 1304 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1305 if (!Opts.OptRecordFile.empty()) 1306 NeedLocTracking = true; 1307 1308 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1309 Opts.OptRecordPasses = A->getValue(); 1310 NeedLocTracking = true; 1311 } 1312 1313 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1314 Opts.OptRecordFormat = A->getValue(); 1315 NeedLocTracking = true; 1316 } 1317 1318 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1319 Opts.OptimizationRemarkPattern = 1320 GenerateOptimizationRemarkRegex(Diags, Args, A); 1321 NeedLocTracking = true; 1322 } 1323 1324 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1325 Opts.OptimizationRemarkMissedPattern = 1326 GenerateOptimizationRemarkRegex(Diags, Args, A); 1327 NeedLocTracking = true; 1328 } 1329 1330 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1331 Opts.OptimizationRemarkAnalysisPattern = 1332 GenerateOptimizationRemarkRegex(Diags, Args, A); 1333 NeedLocTracking = true; 1334 } 1335 1336 Opts.DiagnosticsWithHotness = 1337 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1338 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1339 bool UsingProfile = UsingSampleProfile || 1340 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1341 1342 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1343 // An IR file will contain PGO as metadata 1344 IK.getLanguage() != Language::LLVM_IR) 1345 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1346 << "-fdiagnostics-show-hotness"; 1347 1348 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1349 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1350 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1351 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1352 << "-fdiagnostics-hotness-threshold="; 1353 1354 // If the user requested to use a sample profile for PGO, then the 1355 // backend will need to track source location information so the profile 1356 // can be incorporated into the IR. 1357 if (UsingSampleProfile) 1358 NeedLocTracking = true; 1359 1360 // If the user requested a flag that requires source locations available in 1361 // the backend, make sure that the backend tracks source location information. 1362 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1363 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1364 1365 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1366 1367 // Parse -fsanitize-recover= arguments. 1368 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1369 parseSanitizerKinds("-fsanitize-recover=", 1370 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1371 Opts.SanitizeRecover); 1372 parseSanitizerKinds("-fsanitize-trap=", 1373 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1374 Opts.SanitizeTrap); 1375 1376 Opts.CudaGpuBinaryFileName = 1377 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1378 1379 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1380 1381 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1382 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1383 1384 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1385 1386 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1387 1388 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1389 StringRef SignScope = A->getValue(); 1390 1391 if (SignScope.equals_lower("none")) 1392 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1393 else if (SignScope.equals_lower("all")) 1394 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1395 else if (SignScope.equals_lower("non-leaf")) 1396 Opts.setSignReturnAddress( 1397 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1398 else 1399 Diags.Report(diag::err_drv_invalid_value) 1400 << A->getAsString(Args) << SignScope; 1401 1402 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1403 StringRef SignKey = A->getValue(); 1404 if (!SignScope.empty() && !SignKey.empty()) { 1405 if (SignKey.equals_lower("a_key")) 1406 Opts.setSignReturnAddressKey( 1407 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1408 else if (SignKey.equals_lower("b_key")) 1409 Opts.setSignReturnAddressKey( 1410 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1411 else 1412 Diags.Report(diag::err_drv_invalid_value) 1413 << A->getAsString(Args) << SignKey; 1414 } 1415 } 1416 } 1417 1418 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1419 1420 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1421 1422 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1423 1424 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1425 1426 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1427 1428 Opts.SymbolPartition = 1429 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1430 1431 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1432 return Success; 1433 } 1434 1435 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1436 ArgList &Args) { 1437 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1438 Opts.Targets = Args.getAllArgValues(OPT_MT); 1439 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1440 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1441 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1442 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1443 Opts.HeaderIncludeOutputFile = 1444 std::string(Args.getLastArgValue(OPT_header_include_file)); 1445 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1446 if (Args.hasArg(OPT_show_includes)) { 1447 // Writing both /showIncludes and preprocessor output to stdout 1448 // would produce interleaved output, so use stderr for /showIncludes. 1449 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1450 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1451 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1452 else 1453 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1454 } else { 1455 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1456 } 1457 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1458 Opts.ModuleDependencyOutputDir = 1459 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1460 if (Args.hasArg(OPT_MV)) 1461 Opts.OutputFormat = DependencyOutputFormat::NMake; 1462 // Add sanitizer blacklists as extra dependencies. 1463 // They won't be discovered by the regular preprocessor, so 1464 // we let make / ninja to know about this implicit dependency. 1465 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1466 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1467 StringRef Val = A->getValue(); 1468 if (Val.find('=') == StringRef::npos) 1469 Opts.ExtraDeps.push_back(std::string(Val)); 1470 } 1471 if (Opts.IncludeSystemHeaders) { 1472 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1473 StringRef Val = A->getValue(); 1474 if (Val.find('=') == StringRef::npos) 1475 Opts.ExtraDeps.push_back(std::string(Val)); 1476 } 1477 } 1478 } 1479 1480 // Propagate the extra dependencies. 1481 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1482 Opts.ExtraDeps.push_back(A->getValue()); 1483 } 1484 1485 // Only the -fmodule-file=<file> form. 1486 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1487 StringRef Val = A->getValue(); 1488 if (Val.find('=') == StringRef::npos) 1489 Opts.ExtraDeps.push_back(std::string(Val)); 1490 } 1491 } 1492 1493 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1494 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1495 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1496 // Support both clang's -f[no-]color-diagnostics and gcc's 1497 // -f[no-]diagnostics-colors[=never|always|auto]. 1498 enum { 1499 Colors_On, 1500 Colors_Off, 1501 Colors_Auto 1502 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1503 for (auto *A : Args) { 1504 const Option &O = A->getOption(); 1505 if (O.matches(options::OPT_fcolor_diagnostics) || 1506 O.matches(options::OPT_fdiagnostics_color)) { 1507 ShowColors = Colors_On; 1508 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1509 O.matches(options::OPT_fno_diagnostics_color)) { 1510 ShowColors = Colors_Off; 1511 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1512 StringRef Value(A->getValue()); 1513 if (Value == "always") 1514 ShowColors = Colors_On; 1515 else if (Value == "never") 1516 ShowColors = Colors_Off; 1517 else if (Value == "auto") 1518 ShowColors = Colors_Auto; 1519 } 1520 } 1521 return ShowColors == Colors_On || 1522 (ShowColors == Colors_Auto && 1523 llvm::sys::Process::StandardErrHasColors()); 1524 } 1525 1526 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1527 DiagnosticsEngine *Diags) { 1528 bool Success = true; 1529 for (const auto &Prefix : VerifyPrefixes) { 1530 // Every prefix must start with a letter and contain only alphanumeric 1531 // characters, hyphens, and underscores. 1532 auto BadChar = llvm::find_if(Prefix, [](char C) { 1533 return !isAlphanumeric(C) && C != '-' && C != '_'; 1534 }); 1535 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1536 Success = false; 1537 if (Diags) { 1538 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1539 Diags->Report(diag::note_drv_verify_prefix_spelling); 1540 } 1541 } 1542 } 1543 return Success; 1544 } 1545 1546 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1547 DiagnosticsEngine *Diags, 1548 bool DefaultDiagColor, bool DefaultShowOpt) { 1549 bool Success = true; 1550 1551 Opts.DiagnosticLogFile = 1552 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1553 if (Arg *A = 1554 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1555 Opts.DiagnosticSerializationFile = A->getValue(); 1556 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1557 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1558 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1559 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1560 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1561 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1562 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1563 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1564 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1565 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1566 Opts.ShowOptionNames = 1567 Args.hasFlag(OPT_fdiagnostics_show_option, 1568 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1569 1570 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1571 1572 // Default behavior is to not to show note include stacks. 1573 Opts.ShowNoteIncludeStack = false; 1574 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1575 OPT_fno_diagnostics_show_note_include_stack)) 1576 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1577 Opts.ShowNoteIncludeStack = true; 1578 1579 StringRef ShowOverloads = 1580 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1581 if (ShowOverloads == "best") 1582 Opts.setShowOverloads(Ovl_Best); 1583 else if (ShowOverloads == "all") 1584 Opts.setShowOverloads(Ovl_All); 1585 else { 1586 Success = false; 1587 if (Diags) 1588 Diags->Report(diag::err_drv_invalid_value) 1589 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1590 << ShowOverloads; 1591 } 1592 1593 StringRef ShowCategory = 1594 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1595 if (ShowCategory == "none") 1596 Opts.ShowCategories = 0; 1597 else if (ShowCategory == "id") 1598 Opts.ShowCategories = 1; 1599 else if (ShowCategory == "name") 1600 Opts.ShowCategories = 2; 1601 else { 1602 Success = false; 1603 if (Diags) 1604 Diags->Report(diag::err_drv_invalid_value) 1605 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1606 << ShowCategory; 1607 } 1608 1609 StringRef Format = 1610 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1611 if (Format == "clang") 1612 Opts.setFormat(DiagnosticOptions::Clang); 1613 else if (Format == "msvc") 1614 Opts.setFormat(DiagnosticOptions::MSVC); 1615 else if (Format == "msvc-fallback") { 1616 Opts.setFormat(DiagnosticOptions::MSVC); 1617 Opts.CLFallbackMode = true; 1618 } else if (Format == "vi") 1619 Opts.setFormat(DiagnosticOptions::Vi); 1620 else { 1621 Success = false; 1622 if (Diags) 1623 Diags->Report(diag::err_drv_invalid_value) 1624 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1625 << Format; 1626 } 1627 1628 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1629 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1630 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1631 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1632 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1633 if (Args.hasArg(OPT_verify)) 1634 Opts.VerifyPrefixes.push_back("expected"); 1635 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1636 // then sort it to prepare for fast lookup using std::binary_search. 1637 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1638 Opts.VerifyDiagnostics = false; 1639 Success = false; 1640 } 1641 else 1642 llvm::sort(Opts.VerifyPrefixes); 1643 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1644 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1645 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1646 Diags, DiagMask); 1647 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1648 DiagMask = DiagnosticLevelMask::All; 1649 Opts.setVerifyIgnoreUnexpected(DiagMask); 1650 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1651 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1652 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1653 Opts.MacroBacktraceLimit = 1654 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1655 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1656 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1657 Args, OPT_ftemplate_backtrace_limit, 1658 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1659 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1660 Args, OPT_fconstexpr_backtrace_limit, 1661 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1662 Opts.SpellCheckingLimit = getLastArgIntValue( 1663 Args, OPT_fspell_checking_limit, 1664 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1665 Opts.SnippetLineLimit = getLastArgIntValue( 1666 Args, OPT_fcaret_diagnostics_max_lines, 1667 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1668 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1669 DiagnosticOptions::DefaultTabStop, Diags); 1670 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1671 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1672 if (Diags) 1673 Diags->Report(diag::warn_ignoring_ftabstop_value) 1674 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1675 } 1676 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1677 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1678 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1679 1680 return Success; 1681 } 1682 1683 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1684 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1685 } 1686 1687 /// Parse the argument to the -ftest-module-file-extension 1688 /// command-line argument. 1689 /// 1690 /// \returns true on error, false on success. 1691 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1692 std::string &BlockName, 1693 unsigned &MajorVersion, 1694 unsigned &MinorVersion, 1695 bool &Hashed, 1696 std::string &UserInfo) { 1697 SmallVector<StringRef, 5> Args; 1698 Arg.split(Args, ':', 5); 1699 if (Args.size() < 5) 1700 return true; 1701 1702 BlockName = std::string(Args[0]); 1703 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1704 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1705 if (Args[3].getAsInteger(2, Hashed)) return true; 1706 if (Args.size() > 4) 1707 UserInfo = std::string(Args[4]); 1708 return false; 1709 } 1710 1711 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1712 DiagnosticsEngine &Diags, 1713 bool &IsHeaderFile) { 1714 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1715 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1716 switch (A->getOption().getID()) { 1717 default: 1718 llvm_unreachable("Invalid option in group!"); 1719 case OPT_ast_list: 1720 Opts.ProgramAction = frontend::ASTDeclList; break; 1721 case OPT_ast_dump_all_EQ: 1722 case OPT_ast_dump_EQ: { 1723 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1724 .CaseLower("default", ADOF_Default) 1725 .CaseLower("json", ADOF_JSON) 1726 .Default(std::numeric_limits<unsigned>::max()); 1727 1728 if (Val != std::numeric_limits<unsigned>::max()) 1729 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1730 else { 1731 Diags.Report(diag::err_drv_invalid_value) 1732 << A->getAsString(Args) << A->getValue(); 1733 Opts.ASTDumpFormat = ADOF_Default; 1734 } 1735 LLVM_FALLTHROUGH; 1736 } 1737 case OPT_ast_dump: 1738 case OPT_ast_dump_all: 1739 case OPT_ast_dump_lookups: 1740 Opts.ProgramAction = frontend::ASTDump; break; 1741 case OPT_ast_print: 1742 Opts.ProgramAction = frontend::ASTPrint; break; 1743 case OPT_ast_view: 1744 Opts.ProgramAction = frontend::ASTView; break; 1745 case OPT_compiler_options_dump: 1746 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1747 case OPT_dump_raw_tokens: 1748 Opts.ProgramAction = frontend::DumpRawTokens; break; 1749 case OPT_dump_tokens: 1750 Opts.ProgramAction = frontend::DumpTokens; break; 1751 case OPT_S: 1752 Opts.ProgramAction = frontend::EmitAssembly; break; 1753 case OPT_emit_llvm_bc: 1754 Opts.ProgramAction = frontend::EmitBC; break; 1755 case OPT_emit_html: 1756 Opts.ProgramAction = frontend::EmitHTML; break; 1757 case OPT_emit_llvm: 1758 Opts.ProgramAction = frontend::EmitLLVM; break; 1759 case OPT_emit_llvm_only: 1760 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1761 case OPT_emit_codegen_only: 1762 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1763 case OPT_emit_obj: 1764 Opts.ProgramAction = frontend::EmitObj; break; 1765 case OPT_fixit_EQ: 1766 Opts.FixItSuffix = A->getValue(); 1767 LLVM_FALLTHROUGH; 1768 case OPT_fixit: 1769 Opts.ProgramAction = frontend::FixIt; break; 1770 case OPT_emit_module: 1771 Opts.ProgramAction = frontend::GenerateModule; break; 1772 case OPT_emit_module_interface: 1773 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1774 case OPT_emit_header_module: 1775 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1776 case OPT_emit_pch: 1777 Opts.ProgramAction = frontend::GeneratePCH; break; 1778 case OPT_emit_interface_stubs: { 1779 StringRef ArgStr = 1780 Args.hasArg(OPT_interface_stub_version_EQ) 1781 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1782 : "experimental-ifs-v1"; 1783 if (ArgStr == "experimental-yaml-elf-v1" || 1784 ArgStr == "experimental-tapi-elf-v1") { 1785 std::string ErrorMessage = 1786 "Invalid interface stub format: " + ArgStr.str() + 1787 " is deprecated."; 1788 Diags.Report(diag::err_drv_invalid_value) 1789 << "Must specify a valid interface stub format type, ie: " 1790 "-interface-stub-version=experimental-ifs-v1" 1791 << ErrorMessage; 1792 } else if (ArgStr != "experimental-ifs-v1") { 1793 std::string ErrorMessage = 1794 "Invalid interface stub format: " + ArgStr.str() + "."; 1795 Diags.Report(diag::err_drv_invalid_value) 1796 << "Must specify a valid interface stub format type, ie: " 1797 "-interface-stub-version=experimental-ifs-v1" 1798 << ErrorMessage; 1799 } else { 1800 Opts.ProgramAction = frontend::GenerateInterfaceIfsExpV1; 1801 } 1802 break; 1803 } 1804 case OPT_init_only: 1805 Opts.ProgramAction = frontend::InitOnly; break; 1806 case OPT_fsyntax_only: 1807 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1808 case OPT_module_file_info: 1809 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1810 case OPT_verify_pch: 1811 Opts.ProgramAction = frontend::VerifyPCH; break; 1812 case OPT_print_preamble: 1813 Opts.ProgramAction = frontend::PrintPreamble; break; 1814 case OPT_E: 1815 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1816 case OPT_templight_dump: 1817 Opts.ProgramAction = frontend::TemplightDump; break; 1818 case OPT_rewrite_macros: 1819 Opts.ProgramAction = frontend::RewriteMacros; break; 1820 case OPT_rewrite_objc: 1821 Opts.ProgramAction = frontend::RewriteObjC; break; 1822 case OPT_rewrite_test: 1823 Opts.ProgramAction = frontend::RewriteTest; break; 1824 case OPT_analyze: 1825 Opts.ProgramAction = frontend::RunAnalysis; break; 1826 case OPT_migrate: 1827 Opts.ProgramAction = frontend::MigrateSource; break; 1828 case OPT_Eonly: 1829 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1830 case OPT_print_dependency_directives_minimized_source: 1831 Opts.ProgramAction = 1832 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1833 break; 1834 } 1835 } 1836 1837 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1838 Opts.Plugins.emplace_back(A->getValue(0)); 1839 Opts.ProgramAction = frontend::PluginAction; 1840 Opts.ActionName = A->getValue(); 1841 } 1842 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1843 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1844 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1845 1846 for (const std::string &Arg : 1847 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1848 std::string BlockName; 1849 unsigned MajorVersion; 1850 unsigned MinorVersion; 1851 bool Hashed; 1852 std::string UserInfo; 1853 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1854 MinorVersion, Hashed, UserInfo)) { 1855 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1856 1857 continue; 1858 } 1859 1860 // Add the testing module file extension. 1861 Opts.ModuleFileExtensions.push_back( 1862 std::make_shared<TestModuleFileExtension>( 1863 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1864 } 1865 1866 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1867 Opts.CodeCompletionAt = 1868 ParsedSourceLocation::FromString(A->getValue()); 1869 if (Opts.CodeCompletionAt.FileName.empty()) 1870 Diags.Report(diag::err_drv_invalid_value) 1871 << A->getAsString(Args) << A->getValue(); 1872 } 1873 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1874 1875 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1876 Opts.Plugins = Args.getAllArgValues(OPT_load); 1877 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1878 Opts.ShowHelp = Args.hasArg(OPT_help); 1879 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1880 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1881 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1882 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1883 Opts.TimeTraceGranularity = getLastArgIntValue( 1884 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1885 Opts.ShowVersion = Args.hasArg(OPT_version); 1886 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1887 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1888 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1889 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1890 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1891 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1892 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1893 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1894 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1895 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1896 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1897 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1898 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1899 // Only the -fmodule-file=<file> form. 1900 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1901 StringRef Val = A->getValue(); 1902 if (Val.find('=') == StringRef::npos) 1903 Opts.ModuleFiles.push_back(std::string(Val)); 1904 } 1905 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1906 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1907 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1908 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1909 1910 Opts.CodeCompleteOpts.IncludeMacros 1911 = Args.hasArg(OPT_code_completion_macros); 1912 Opts.CodeCompleteOpts.IncludeCodePatterns 1913 = Args.hasArg(OPT_code_completion_patterns); 1914 Opts.CodeCompleteOpts.IncludeGlobals 1915 = !Args.hasArg(OPT_no_code_completion_globals); 1916 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1917 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1918 Opts.CodeCompleteOpts.IncludeBriefComments 1919 = Args.hasArg(OPT_code_completion_brief_comments); 1920 Opts.CodeCompleteOpts.IncludeFixIts 1921 = Args.hasArg(OPT_code_completion_with_fixits); 1922 1923 Opts.OverrideRecordLayoutsFile = 1924 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1925 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1926 if (Args.hasArg(OPT_aux_target_cpu)) 1927 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1928 if (Args.hasArg(OPT_aux_target_feature)) 1929 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1930 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1931 1932 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1933 OPT_arcmt_modify, 1934 OPT_arcmt_migrate)) { 1935 switch (A->getOption().getID()) { 1936 default: 1937 llvm_unreachable("missed a case"); 1938 case OPT_arcmt_check: 1939 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1940 break; 1941 case OPT_arcmt_modify: 1942 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1943 break; 1944 case OPT_arcmt_migrate: 1945 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1946 break; 1947 } 1948 } 1949 Opts.MTMigrateDir = 1950 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1951 Opts.ARCMTMigrateReportOut = 1952 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1953 Opts.ARCMTMigrateEmitARCErrors 1954 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1955 1956 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1957 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1958 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1959 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1960 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1961 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1962 if (Args.hasArg(OPT_objcmt_migrate_property)) 1963 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1964 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1965 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1966 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1967 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1968 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1969 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1970 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1971 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1972 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1973 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1974 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1975 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1976 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1977 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1978 if (Args.hasArg(OPT_objcmt_atomic_property)) 1979 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1980 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1981 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1982 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1983 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1984 if (Args.hasArg(OPT_objcmt_migrate_all)) 1985 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1986 1987 Opts.ObjCMTWhiteListPath = 1988 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 1989 1990 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1991 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1992 Diags.Report(diag::err_drv_argument_not_allowed_with) 1993 << "ARC migration" << "ObjC migration"; 1994 } 1995 1996 InputKind DashX(Language::Unknown); 1997 if (const Arg *A = Args.getLastArg(OPT_x)) { 1998 StringRef XValue = A->getValue(); 1999 2000 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2001 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2002 bool Preprocessed = XValue.consume_back("-cpp-output"); 2003 bool ModuleMap = XValue.consume_back("-module-map"); 2004 IsHeaderFile = 2005 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 2006 2007 // Principal languages. 2008 DashX = llvm::StringSwitch<InputKind>(XValue) 2009 .Case("c", Language::C) 2010 .Case("cl", Language::OpenCL) 2011 .Case("cuda", Language::CUDA) 2012 .Case("hip", Language::HIP) 2013 .Case("c++", Language::CXX) 2014 .Case("objective-c", Language::ObjC) 2015 .Case("objective-c++", Language::ObjCXX) 2016 .Case("renderscript", Language::RenderScript) 2017 .Default(Language::Unknown); 2018 2019 // "objc[++]-cpp-output" is an acceptable synonym for 2020 // "objective-c[++]-cpp-output". 2021 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2022 DashX = llvm::StringSwitch<InputKind>(XValue) 2023 .Case("objc", Language::ObjC) 2024 .Case("objc++", Language::ObjCXX) 2025 .Default(Language::Unknown); 2026 2027 // Some special cases cannot be combined with suffixes. 2028 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2029 DashX = llvm::StringSwitch<InputKind>(XValue) 2030 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2031 .Case("assembler-with-cpp", Language::Asm) 2032 .Cases("ast", "pcm", 2033 InputKind(Language::Unknown, InputKind::Precompiled)) 2034 .Case("ir", Language::LLVM_IR) 2035 .Default(Language::Unknown); 2036 2037 if (DashX.isUnknown()) 2038 Diags.Report(diag::err_drv_invalid_value) 2039 << A->getAsString(Args) << A->getValue(); 2040 2041 if (Preprocessed) 2042 DashX = DashX.getPreprocessed(); 2043 if (ModuleMap) 2044 DashX = DashX.withFormat(InputKind::ModuleMap); 2045 } 2046 2047 // '-' is the default input if none is given. 2048 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2049 Opts.Inputs.clear(); 2050 if (Inputs.empty()) 2051 Inputs.push_back("-"); 2052 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2053 InputKind IK = DashX; 2054 if (IK.isUnknown()) { 2055 IK = FrontendOptions::getInputKindForExtension( 2056 StringRef(Inputs[i]).rsplit('.').second); 2057 // FIXME: Warn on this? 2058 if (IK.isUnknown()) 2059 IK = Language::C; 2060 // FIXME: Remove this hack. 2061 if (i == 0) 2062 DashX = IK; 2063 } 2064 2065 // The -emit-module action implicitly takes a module map. 2066 if (Opts.ProgramAction == frontend::GenerateModule && 2067 IK.getFormat() == InputKind::Source) 2068 IK = IK.withFormat(InputKind::ModuleMap); 2069 2070 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 2071 } 2072 2073 return DashX; 2074 } 2075 2076 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2077 void *MainAddr) { 2078 std::string ClangExecutable = 2079 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2080 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2081 } 2082 2083 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2084 const std::string &WorkingDir) { 2085 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2086 Opts.Verbose = Args.hasArg(OPT_v); 2087 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2088 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2089 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2090 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2091 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2092 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2093 2094 // Canonicalize -fmodules-cache-path before storing it. 2095 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2096 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2097 if (WorkingDir.empty()) 2098 llvm::sys::fs::make_absolute(P); 2099 else 2100 llvm::sys::fs::make_absolute(WorkingDir, P); 2101 } 2102 llvm::sys::path::remove_dots(P); 2103 Opts.ModuleCachePath = std::string(P.str()); 2104 2105 Opts.ModuleUserBuildPath = 2106 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2107 // Only the -fmodule-file=<name>=<file> form. 2108 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2109 StringRef Val = A->getValue(); 2110 if (Val.find('=') != StringRef::npos){ 2111 auto Split = Val.split('='); 2112 Opts.PrebuiltModuleFiles.insert( 2113 {std::string(Split.first), std::string(Split.second)}); 2114 } 2115 } 2116 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2117 Opts.AddPrebuiltModulePath(A->getValue()); 2118 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2119 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2120 Opts.ModulesStrictContextHash = Args.hasArg(OPT_fmodules_strict_context_hash); 2121 Opts.ModulesValidateDiagnosticOptions = 2122 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2123 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2124 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2125 Opts.ModuleCachePruneInterval = 2126 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2127 Opts.ModuleCachePruneAfter = 2128 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2129 Opts.ModulesValidateOncePerBuildSession = 2130 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2131 Opts.BuildSessionTimestamp = 2132 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2133 Opts.ModulesValidateSystemHeaders = 2134 Args.hasArg(OPT_fmodules_validate_system_headers); 2135 Opts.ValidateASTInputFilesContent = 2136 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2137 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2138 Opts.ModuleFormat = A->getValue(); 2139 2140 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2141 StringRef MacroDef = A->getValue(); 2142 Opts.ModulesIgnoreMacros.insert( 2143 llvm::CachedHashString(MacroDef.split('=').first)); 2144 } 2145 2146 // Add -I..., -F..., and -index-header-map options in order. 2147 bool IsIndexHeaderMap = false; 2148 bool IsSysrootSpecified = 2149 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2150 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2151 if (A->getOption().matches(OPT_index_header_map)) { 2152 // -index-header-map applies to the next -I or -F. 2153 IsIndexHeaderMap = true; 2154 continue; 2155 } 2156 2157 frontend::IncludeDirGroup Group = 2158 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2159 2160 bool IsFramework = A->getOption().matches(OPT_F); 2161 std::string Path = A->getValue(); 2162 2163 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2164 SmallString<32> Buffer; 2165 llvm::sys::path::append(Buffer, Opts.Sysroot, 2166 llvm::StringRef(A->getValue()).substr(1)); 2167 Path = std::string(Buffer.str()); 2168 } 2169 2170 Opts.AddPath(Path, Group, IsFramework, 2171 /*IgnoreSysroot*/ true); 2172 IsIndexHeaderMap = false; 2173 } 2174 2175 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2176 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2177 for (const auto *A : 2178 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2179 if (A->getOption().matches(OPT_iprefix)) 2180 Prefix = A->getValue(); 2181 else if (A->getOption().matches(OPT_iwithprefix)) 2182 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2183 else 2184 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2185 } 2186 2187 for (const auto *A : Args.filtered(OPT_idirafter)) 2188 Opts.AddPath(A->getValue(), frontend::After, false, true); 2189 for (const auto *A : Args.filtered(OPT_iquote)) 2190 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2191 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2192 Opts.AddPath(A->getValue(), frontend::System, false, 2193 !A->getOption().matches(OPT_iwithsysroot)); 2194 for (const auto *A : Args.filtered(OPT_iframework)) 2195 Opts.AddPath(A->getValue(), frontend::System, true, true); 2196 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2197 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2198 /*IgnoreSysRoot=*/false); 2199 2200 // Add the paths for the various language specific isystem flags. 2201 for (const auto *A : Args.filtered(OPT_c_isystem)) 2202 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2203 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2204 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2205 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2206 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2207 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2208 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2209 2210 // Add the internal paths from a driver that detects standard include paths. 2211 for (const auto *A : 2212 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2213 frontend::IncludeDirGroup Group = frontend::System; 2214 if (A->getOption().matches(OPT_internal_externc_isystem)) 2215 Group = frontend::ExternCSystem; 2216 Opts.AddPath(A->getValue(), Group, false, true); 2217 } 2218 2219 // Add the path prefixes which are implicitly treated as being system headers. 2220 for (const auto *A : 2221 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2222 Opts.AddSystemHeaderPrefix( 2223 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2224 2225 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2226 Opts.AddVFSOverlayFile(A->getValue()); 2227 } 2228 2229 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2230 const llvm::Triple &T, 2231 PreprocessorOptions &PPOpts, 2232 LangStandard::Kind LangStd) { 2233 // Set some properties which depend solely on the input kind; it would be nice 2234 // to move these to the language standard, and have the driver resolve the 2235 // input kind + language standard. 2236 // 2237 // FIXME: Perhaps a better model would be for a single source file to have 2238 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2239 // simultaneously active? 2240 if (IK.getLanguage() == Language::Asm) { 2241 Opts.AsmPreprocessor = 1; 2242 } else if (IK.isObjectiveC()) { 2243 Opts.ObjC = 1; 2244 } 2245 2246 if (LangStd == LangStandard::lang_unspecified) { 2247 // Based on the base language, pick one. 2248 switch (IK.getLanguage()) { 2249 case Language::Unknown: 2250 case Language::LLVM_IR: 2251 llvm_unreachable("Invalid input kind!"); 2252 case Language::OpenCL: 2253 LangStd = LangStandard::lang_opencl10; 2254 break; 2255 case Language::CUDA: 2256 LangStd = LangStandard::lang_cuda; 2257 break; 2258 case Language::Asm: 2259 case Language::C: 2260 #if defined(CLANG_DEFAULT_STD_C) 2261 LangStd = CLANG_DEFAULT_STD_C; 2262 #else 2263 // The PS4 uses C99 as the default C standard. 2264 if (T.isPS4()) 2265 LangStd = LangStandard::lang_gnu99; 2266 else 2267 LangStd = LangStandard::lang_gnu11; 2268 #endif 2269 break; 2270 case Language::ObjC: 2271 #if defined(CLANG_DEFAULT_STD_C) 2272 LangStd = CLANG_DEFAULT_STD_C; 2273 #else 2274 LangStd = LangStandard::lang_gnu11; 2275 #endif 2276 break; 2277 case Language::CXX: 2278 case Language::ObjCXX: 2279 #if defined(CLANG_DEFAULT_STD_CXX) 2280 LangStd = CLANG_DEFAULT_STD_CXX; 2281 #else 2282 LangStd = LangStandard::lang_gnucxx14; 2283 #endif 2284 break; 2285 case Language::RenderScript: 2286 LangStd = LangStandard::lang_c99; 2287 break; 2288 case Language::HIP: 2289 LangStd = LangStandard::lang_hip; 2290 break; 2291 } 2292 } 2293 2294 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2295 Opts.LineComment = Std.hasLineComments(); 2296 Opts.C99 = Std.isC99(); 2297 Opts.C11 = Std.isC11(); 2298 Opts.C17 = Std.isC17(); 2299 Opts.C2x = Std.isC2x(); 2300 Opts.CPlusPlus = Std.isCPlusPlus(); 2301 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2302 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2303 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2304 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2305 Opts.Digraphs = Std.hasDigraphs(); 2306 Opts.GNUMode = Std.isGNUMode(); 2307 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2308 Opts.GNUCVersion = 0; 2309 Opts.HexFloats = Std.hasHexFloats(); 2310 Opts.ImplicitInt = Std.hasImplicitInt(); 2311 2312 // Set OpenCL Version. 2313 Opts.OpenCL = Std.isOpenCL(); 2314 if (LangStd == LangStandard::lang_opencl10) 2315 Opts.OpenCLVersion = 100; 2316 else if (LangStd == LangStandard::lang_opencl11) 2317 Opts.OpenCLVersion = 110; 2318 else if (LangStd == LangStandard::lang_opencl12) 2319 Opts.OpenCLVersion = 120; 2320 else if (LangStd == LangStandard::lang_opencl20) 2321 Opts.OpenCLVersion = 200; 2322 else if (LangStd == LangStandard::lang_openclcpp) 2323 Opts.OpenCLCPlusPlusVersion = 100; 2324 2325 // OpenCL has some additional defaults. 2326 if (Opts.OpenCL) { 2327 Opts.AltiVec = 0; 2328 Opts.ZVector = 0; 2329 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2330 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2331 Opts.NativeHalfType = 1; 2332 Opts.NativeHalfArgsAndReturns = 1; 2333 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2334 2335 // Include default header file for OpenCL. 2336 if (Opts.IncludeDefaultHeader) { 2337 if (Opts.DeclareOpenCLBuiltins) { 2338 // Only include base header file for builtin types and constants. 2339 PPOpts.Includes.push_back("opencl-c-base.h"); 2340 } else { 2341 PPOpts.Includes.push_back("opencl-c.h"); 2342 } 2343 } 2344 } 2345 2346 Opts.HIP = IK.getLanguage() == Language::HIP; 2347 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2348 if (Opts.CUDA) 2349 // Set default FP_CONTRACT to FAST. 2350 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2351 2352 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2353 if (Opts.RenderScript) { 2354 Opts.NativeHalfType = 1; 2355 Opts.NativeHalfArgsAndReturns = 1; 2356 } 2357 2358 // OpenCL and C++ both have bool, true, false keywords. 2359 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2360 2361 // OpenCL has half keyword 2362 Opts.Half = Opts.OpenCL; 2363 2364 // C++ has wchar_t keyword. 2365 Opts.WChar = Opts.CPlusPlus; 2366 2367 Opts.GNUKeywords = Opts.GNUMode; 2368 Opts.CXXOperatorNames = Opts.CPlusPlus; 2369 2370 Opts.AlignedAllocation = Opts.CPlusPlus17; 2371 2372 Opts.DollarIdents = !Opts.AsmPreprocessor; 2373 2374 // Enable [[]] attributes in C++11 and C2x by default. 2375 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2376 } 2377 2378 /// Attempt to parse a visibility value out of the given argument. 2379 static Visibility parseVisibility(Arg *arg, ArgList &args, 2380 DiagnosticsEngine &diags) { 2381 StringRef value = arg->getValue(); 2382 if (value == "default") { 2383 return DefaultVisibility; 2384 } else if (value == "hidden" || value == "internal") { 2385 return HiddenVisibility; 2386 } else if (value == "protected") { 2387 // FIXME: diagnose if target does not support protected visibility 2388 return ProtectedVisibility; 2389 } 2390 2391 diags.Report(diag::err_drv_invalid_value) 2392 << arg->getAsString(args) << value; 2393 return DefaultVisibility; 2394 } 2395 2396 /// Check if input file kind and language standard are compatible. 2397 static bool IsInputCompatibleWithStandard(InputKind IK, 2398 const LangStandard &S) { 2399 switch (IK.getLanguage()) { 2400 case Language::Unknown: 2401 case Language::LLVM_IR: 2402 llvm_unreachable("should not parse language flags for this input"); 2403 2404 case Language::C: 2405 case Language::ObjC: 2406 case Language::RenderScript: 2407 return S.getLanguage() == Language::C; 2408 2409 case Language::OpenCL: 2410 return S.getLanguage() == Language::OpenCL; 2411 2412 case Language::CXX: 2413 case Language::ObjCXX: 2414 return S.getLanguage() == Language::CXX; 2415 2416 case Language::CUDA: 2417 // FIXME: What -std= values should be permitted for CUDA compilations? 2418 return S.getLanguage() == Language::CUDA || 2419 S.getLanguage() == Language::CXX; 2420 2421 case Language::HIP: 2422 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2423 2424 case Language::Asm: 2425 // Accept (and ignore) all -std= values. 2426 // FIXME: The -std= value is not ignored; it affects the tokenization 2427 // and preprocessing rules if we're preprocessing this asm input. 2428 return true; 2429 } 2430 2431 llvm_unreachable("unexpected input language"); 2432 } 2433 2434 /// Get language name for given input kind. 2435 static const StringRef GetInputKindName(InputKind IK) { 2436 switch (IK.getLanguage()) { 2437 case Language::C: 2438 return "C"; 2439 case Language::ObjC: 2440 return "Objective-C"; 2441 case Language::CXX: 2442 return "C++"; 2443 case Language::ObjCXX: 2444 return "Objective-C++"; 2445 case Language::OpenCL: 2446 return "OpenCL"; 2447 case Language::CUDA: 2448 return "CUDA"; 2449 case Language::RenderScript: 2450 return "RenderScript"; 2451 case Language::HIP: 2452 return "HIP"; 2453 2454 case Language::Asm: 2455 return "Asm"; 2456 case Language::LLVM_IR: 2457 return "LLVM IR"; 2458 2459 case Language::Unknown: 2460 break; 2461 } 2462 llvm_unreachable("unknown input language"); 2463 } 2464 2465 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2466 const TargetOptions &TargetOpts, 2467 PreprocessorOptions &PPOpts, 2468 DiagnosticsEngine &Diags) { 2469 // FIXME: Cleanup per-file based stuff. 2470 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2471 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2472 LangStd = LangStandard::getLangKind(A->getValue()); 2473 if (LangStd == LangStandard::lang_unspecified) { 2474 Diags.Report(diag::err_drv_invalid_value) 2475 << A->getAsString(Args) << A->getValue(); 2476 // Report supported standards with short description. 2477 for (unsigned KindValue = 0; 2478 KindValue != LangStandard::lang_unspecified; 2479 ++KindValue) { 2480 const LangStandard &Std = LangStandard::getLangStandardForKind( 2481 static_cast<LangStandard::Kind>(KindValue)); 2482 if (IsInputCompatibleWithStandard(IK, Std)) { 2483 auto Diag = Diags.Report(diag::note_drv_use_standard); 2484 Diag << Std.getName() << Std.getDescription(); 2485 unsigned NumAliases = 0; 2486 #define LANGSTANDARD(id, name, lang, desc, features) 2487 #define LANGSTANDARD_ALIAS(id, alias) \ 2488 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2489 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2490 #include "clang/Basic/LangStandards.def" 2491 Diag << NumAliases; 2492 #define LANGSTANDARD(id, name, lang, desc, features) 2493 #define LANGSTANDARD_ALIAS(id, alias) \ 2494 if (KindValue == LangStandard::lang_##id) Diag << alias; 2495 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2496 #include "clang/Basic/LangStandards.def" 2497 } 2498 } 2499 } else { 2500 // Valid standard, check to make sure language and standard are 2501 // compatible. 2502 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2503 if (!IsInputCompatibleWithStandard(IK, Std)) { 2504 Diags.Report(diag::err_drv_argument_not_allowed_with) 2505 << A->getAsString(Args) << GetInputKindName(IK); 2506 } 2507 } 2508 } 2509 2510 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2511 Opts.DllExportInlines = false; 2512 2513 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2514 StringRef Name = A->getValue(); 2515 if (Name == "full" || Name == "branch") { 2516 Opts.CFProtectionBranch = 1; 2517 } 2518 } 2519 // -cl-std only applies for OpenCL language standards. 2520 // Override the -std option in this case. 2521 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2522 LangStandard::Kind OpenCLLangStd 2523 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2524 .Cases("cl", "CL", LangStandard::lang_opencl10) 2525 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2526 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2527 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2528 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2529 .Default(LangStandard::lang_unspecified); 2530 2531 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2532 Diags.Report(diag::err_drv_invalid_value) 2533 << A->getAsString(Args) << A->getValue(); 2534 } 2535 else 2536 LangStd = OpenCLLangStd; 2537 } 2538 2539 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2540 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2541 2542 llvm::Triple T(TargetOpts.Triple); 2543 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2544 2545 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2546 // This option should be deprecated for CL > 1.0 because 2547 // this option was added for compatibility with OpenCL 1.0. 2548 if (Args.getLastArg(OPT_cl_strict_aliasing) 2549 && Opts.OpenCLVersion > 100) { 2550 Diags.Report(diag::warn_option_invalid_ocl_version) 2551 << Opts.getOpenCLVersionTuple().getAsString() 2552 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2553 } 2554 2555 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2556 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2557 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2558 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2559 // name, as it doesn't seem a useful distinction. 2560 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2561 Opts.GNUKeywords); 2562 2563 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2564 2565 if (Args.hasArg(OPT_fno_operator_names)) 2566 Opts.CXXOperatorNames = 0; 2567 2568 if (Args.hasArg(OPT_fcuda_is_device)) 2569 Opts.CUDAIsDevice = 1; 2570 2571 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2572 Opts.CUDAAllowVariadicFunctions = 1; 2573 2574 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2575 Opts.CUDAHostDeviceConstexpr = 0; 2576 2577 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2578 Opts.CUDADeviceApproxTranscendentals = 1; 2579 2580 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2581 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2582 if (Opts.HIP) 2583 Opts.GPUAllowDeviceInit = 1; 2584 else 2585 Diags.Report(diag::warn_ignored_hip_only_option) 2586 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2587 } 2588 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2589 if (Opts.HIP) 2590 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2591 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2592 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2593 Diags.Report(diag::warn_ignored_hip_only_option) 2594 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2595 2596 if (Opts.ObjC) { 2597 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2598 StringRef value = arg->getValue(); 2599 if (Opts.ObjCRuntime.tryParse(value)) 2600 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2601 } 2602 2603 if (Args.hasArg(OPT_fobjc_gc_only)) 2604 Opts.setGC(LangOptions::GCOnly); 2605 else if (Args.hasArg(OPT_fobjc_gc)) 2606 Opts.setGC(LangOptions::HybridGC); 2607 else if (Args.hasArg(OPT_fobjc_arc)) { 2608 Opts.ObjCAutoRefCount = 1; 2609 if (!Opts.ObjCRuntime.allowsARC()) 2610 Diags.Report(diag::err_arc_unsupported_on_runtime); 2611 } 2612 2613 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2614 // whether the feature is actually enabled. This is predominantly 2615 // determined by -fobjc-runtime, but we allow it to be overridden 2616 // from the command line for testing purposes. 2617 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2618 Opts.ObjCWeakRuntime = 1; 2619 else 2620 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2621 2622 // ObjCWeak determines whether __weak is actually enabled. 2623 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2624 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2625 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2626 assert(!Opts.ObjCWeak); 2627 } else if (Opts.getGC() != LangOptions::NonGC) { 2628 Diags.Report(diag::err_objc_weak_with_gc); 2629 } else if (!Opts.ObjCWeakRuntime) { 2630 Diags.Report(diag::err_objc_weak_unsupported); 2631 } else { 2632 Opts.ObjCWeak = 1; 2633 } 2634 } else if (Opts.ObjCAutoRefCount) { 2635 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2636 } 2637 2638 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2639 Opts.ObjCInferRelatedResultType = 0; 2640 2641 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2642 Opts.ObjCSubscriptingLegacyRuntime = 2643 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2644 } 2645 2646 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2647 // Check that the version has 1 to 3 components and the minor and patch 2648 // versions fit in two decimal digits. 2649 VersionTuple GNUCVer; 2650 bool Invalid = GNUCVer.tryParse(A->getValue()); 2651 unsigned Major = GNUCVer.getMajor(); 2652 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2653 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2654 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2655 Diags.Report(diag::err_drv_invalid_value) 2656 << A->getAsString(Args) << A->getValue(); 2657 } 2658 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2659 } 2660 2661 if (Args.hasArg(OPT_fgnu89_inline)) { 2662 if (Opts.CPlusPlus) 2663 Diags.Report(diag::err_drv_argument_not_allowed_with) 2664 << "-fgnu89-inline" << GetInputKindName(IK); 2665 else 2666 Opts.GNUInline = 1; 2667 } 2668 2669 if (Args.hasArg(OPT_fapple_kext)) { 2670 if (!Opts.CPlusPlus) 2671 Diags.Report(diag::warn_c_kext); 2672 else 2673 Opts.AppleKext = 1; 2674 } 2675 2676 if (Args.hasArg(OPT_print_ivar_layout)) 2677 Opts.ObjCGCBitmapPrint = 1; 2678 2679 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2680 Opts.NoConstantCFStrings = 1; 2681 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2682 Opts.CFRuntime = 2683 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2684 .Cases("unspecified", "standalone", "objc", 2685 LangOptions::CoreFoundationABI::ObjectiveC) 2686 .Cases("swift", "swift-5.0", 2687 LangOptions::CoreFoundationABI::Swift5_0) 2688 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2689 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2690 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2691 2692 if (Args.hasArg(OPT_fzvector)) 2693 Opts.ZVector = 1; 2694 2695 if (Args.hasArg(OPT_pthread)) 2696 Opts.POSIXThreads = 1; 2697 2698 // The value-visibility mode defaults to "default". 2699 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2700 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2701 } else { 2702 Opts.setValueVisibilityMode(DefaultVisibility); 2703 } 2704 2705 // The type-visibility mode defaults to the value-visibility mode. 2706 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2707 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2708 } else { 2709 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2710 } 2711 2712 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2713 Opts.InlineVisibilityHidden = 1; 2714 2715 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2716 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2717 2718 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2719 Opts.SetVisibilityForExternDecls = 1; 2720 2721 if (Args.hasArg(OPT_ftrapv)) { 2722 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2723 // Set the handler, if one is specified. 2724 Opts.OverflowHandler = 2725 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2726 } 2727 else if (Args.hasArg(OPT_fwrapv)) 2728 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2729 2730 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2731 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2732 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2733 Opts.MSCompatibilityVersion = 0; 2734 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2735 VersionTuple VT; 2736 if (VT.tryParse(A->getValue())) 2737 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2738 << A->getValue(); 2739 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2740 VT.getMinor().getValueOr(0) * 100000 + 2741 VT.getSubminor().getValueOr(0); 2742 } 2743 2744 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2745 // is specified, or -std is set to a conforming mode. 2746 // Trigraphs are disabled by default in c++1z onwards. 2747 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2748 Opts.Trigraphs = 2749 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2750 2751 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2752 OPT_fno_dollars_in_identifiers, 2753 Opts.DollarIdents); 2754 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2755 Opts.setVtorDispMode( 2756 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2757 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2758 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2759 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2760 Opts.ConstStrings); 2761 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2762 using LaxKind = LangOptions::LaxVectorConversionKind; 2763 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2764 .Case("none", LaxKind::None) 2765 .Case("integer", LaxKind::Integer) 2766 .Case("all", LaxKind::All) 2767 .Default(llvm::None)) 2768 Opts.setLaxVectorConversions(*Kind); 2769 else 2770 Diags.Report(diag::err_drv_invalid_value) 2771 << A->getAsString(Args) << A->getValue(); 2772 } 2773 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2774 Opts.ThreadsafeStatics = 0; 2775 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2776 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2777 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2778 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2779 2780 // -ffixed-point 2781 Opts.FixedPoint = 2782 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2783 !Opts.CPlusPlus; 2784 Opts.PaddingOnUnsignedFixedPoint = 2785 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2786 OPT_fno_padding_on_unsigned_fixed_point, 2787 /*Default=*/false) && 2788 Opts.FixedPoint; 2789 2790 // Handle exception personalities 2791 Arg *A = Args.getLastArg( 2792 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2793 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2794 if (A) { 2795 const Option &Opt = A->getOption(); 2796 llvm::Triple T(TargetOpts.Triple); 2797 if (T.isWindowsMSVCEnvironment()) 2798 Diags.Report(diag::err_fe_invalid_exception_model) 2799 << Opt.getName() << T.str(); 2800 2801 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2802 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2803 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2804 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2805 } 2806 2807 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2808 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2809 2810 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2811 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2812 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2813 && Opts.OpenCLVersion == 200); 2814 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2815 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2816 2817 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2818 Args.hasArg(OPT_fconvergent_functions); 2819 2820 Opts.DoubleSquareBracketAttributes = 2821 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2822 OPT_fno_double_square_bracket_attributes, 2823 Opts.DoubleSquareBracketAttributes); 2824 2825 Opts.CPlusPlusModules = Opts.CPlusPlus2a; 2826 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2827 Opts.Modules = 2828 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2829 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2830 Opts.ModulesDeclUse = 2831 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2832 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2833 // enter a different module (eg, when building a header unit). 2834 Opts.ModulesLocalVisibility = 2835 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2836 Opts.CPlusPlusModules; 2837 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2838 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2839 Opts.ModulesSearchAll = Opts.Modules && 2840 !Args.hasArg(OPT_fno_modules_search_all) && 2841 Args.hasArg(OPT_fmodules_search_all); 2842 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2843 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2844 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2845 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2846 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2847 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2848 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2849 .Case("char", 1) 2850 .Case("short", 2) 2851 .Case("int", 4) 2852 .Default(0); 2853 if (Opts.WCharSize == 0) 2854 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2855 } 2856 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2857 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2858 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2859 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2860 if (!Opts.NoBuiltin) 2861 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2862 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2863 Opts.RelaxedTemplateTemplateArgs = 2864 Args.hasArg(OPT_frelaxed_template_template_args); 2865 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2866 Opts.AlignedAllocation = 2867 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2868 Opts.AlignedAllocation); 2869 Opts.AlignedAllocationUnavailable = 2870 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2871 Opts.NewAlignOverride = 2872 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2873 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2874 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2875 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2876 << A->getValue(); 2877 Opts.NewAlignOverride = 0; 2878 } 2879 Opts.ConceptSatisfactionCaching = 2880 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2881 if (Args.hasArg(OPT_fconcepts_ts)) 2882 Diags.Report(diag::warn_fe_concepts_ts_flag); 2883 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2884 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2885 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2886 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2887 Opts.InstantiationDepth = 2888 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2889 Opts.ArrowDepth = 2890 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2891 Opts.ConstexprCallDepth = 2892 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2893 Opts.ConstexprStepLimit = 2894 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2895 Opts.EnableNewConstInterp = 2896 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2897 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2898 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2899 Opts.NumLargeByValueCopy = 2900 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2901 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2902 Opts.ObjCConstantStringClass = 2903 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2904 Opts.ObjCDefaultSynthProperties = 2905 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2906 Opts.EncodeExtendedBlockSig = 2907 Args.hasArg(OPT_fencode_extended_block_signature); 2908 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2909 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2910 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2911 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2912 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2913 ? 128 2914 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2915 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2916 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2917 Opts.ROPI = Args.hasArg(OPT_fropi); 2918 Opts.RWPI = Args.hasArg(OPT_frwpi); 2919 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2920 Opts.Static = Args.hasArg(OPT_static_define); 2921 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2922 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2923 || Args.hasArg(OPT_fdump_record_layouts); 2924 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2925 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2926 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2927 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2928 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2929 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2930 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2931 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2932 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2933 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2934 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2935 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2936 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 2937 Opts.CurrentModule = Opts.ModuleName; 2938 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2939 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2940 llvm::sort(Opts.ModuleFeatures); 2941 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2942 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2943 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2944 // is enabled. 2945 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2946 | Opts.NativeHalfArgsAndReturns; 2947 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2948 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2949 2950 // __declspec is enabled by default for the PS4 by the driver, and also 2951 // enabled for Microsoft Extensions or Borland Extensions, here. 2952 // 2953 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2954 // CUDA extension. However, it is required for supporting 2955 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2956 // been rewritten in terms of something more generic, remove the Opts.CUDA 2957 // term here. 2958 Opts.DeclSpecKeyword = 2959 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2960 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2961 2962 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2963 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2964 .Case("target", LangOptions::ASMM_Target) 2965 .Case("no", LangOptions::ASMM_Off) 2966 .Case("yes", LangOptions::ASMM_On) 2967 .Default(255)) { 2968 default: 2969 Diags.Report(diag::err_drv_invalid_value) 2970 << "-faddress-space-map-mangling=" << A->getValue(); 2971 break; 2972 case LangOptions::ASMM_Target: 2973 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2974 break; 2975 case LangOptions::ASMM_On: 2976 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2977 break; 2978 case LangOptions::ASMM_Off: 2979 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2980 break; 2981 } 2982 } 2983 2984 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2985 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2986 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2987 A->getValue()) 2988 .Case("single", 2989 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2990 .Case("multiple", 2991 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2992 .Case("virtual", 2993 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2994 .Default(LangOptions::PPTMK_BestCase); 2995 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2996 Diags.Report(diag::err_drv_invalid_value) 2997 << "-fms-memptr-rep=" << A->getValue(); 2998 2999 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3000 } 3001 3002 // Check for MS default calling conventions being specified. 3003 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3004 LangOptions::DefaultCallingConvention DefaultCC = 3005 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3006 .Case("cdecl", LangOptions::DCC_CDecl) 3007 .Case("fastcall", LangOptions::DCC_FastCall) 3008 .Case("stdcall", LangOptions::DCC_StdCall) 3009 .Case("vectorcall", LangOptions::DCC_VectorCall) 3010 .Case("regcall", LangOptions::DCC_RegCall) 3011 .Default(LangOptions::DCC_None); 3012 if (DefaultCC == LangOptions::DCC_None) 3013 Diags.Report(diag::err_drv_invalid_value) 3014 << "-fdefault-calling-conv=" << A->getValue(); 3015 3016 llvm::Triple T(TargetOpts.Triple); 3017 llvm::Triple::ArchType Arch = T.getArch(); 3018 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3019 DefaultCC == LangOptions::DCC_StdCall) && 3020 Arch != llvm::Triple::x86; 3021 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3022 DefaultCC == LangOptions::DCC_RegCall) && 3023 !T.isX86(); 3024 if (emitError) 3025 Diags.Report(diag::err_drv_argument_not_allowed_with) 3026 << A->getSpelling() << T.getTriple(); 3027 else 3028 Opts.setDefaultCallingConv(DefaultCC); 3029 } 3030 3031 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3032 3033 // -mrtd option 3034 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3035 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3036 Diags.Report(diag::err_drv_argument_not_allowed_with) 3037 << A->getSpelling() << "-fdefault-calling-conv"; 3038 else { 3039 llvm::Triple T(TargetOpts.Triple); 3040 if (T.getArch() != llvm::Triple::x86) 3041 Diags.Report(diag::err_drv_argument_not_allowed_with) 3042 << A->getSpelling() << T.getTriple(); 3043 else 3044 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3045 } 3046 } 3047 3048 // Check if -fopenmp is specified and set default version to 4.5. 3049 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 45 : 0; 3050 // Check if -fopenmp-simd is specified. 3051 bool IsSimdSpecified = 3052 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3053 /*Default=*/false); 3054 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3055 Opts.OpenMPUseTLS = 3056 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3057 Opts.OpenMPIsDevice = 3058 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3059 Opts.OpenMPIRBuilder = 3060 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3061 bool IsTargetSpecified = 3062 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3063 3064 if (Opts.OpenMP || Opts.OpenMPSimd) { 3065 if (int Version = getLastArgIntValue( 3066 Args, OPT_fopenmp_version_EQ, 3067 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 3068 Opts.OpenMP = Version; 3069 else if (IsSimdSpecified || IsTargetSpecified) 3070 Opts.OpenMP = 45; 3071 // Provide diagnostic when a given target is not expected to be an OpenMP 3072 // device or host. 3073 if (!Opts.OpenMPIsDevice) { 3074 switch (T.getArch()) { 3075 default: 3076 break; 3077 // Add unsupported host targets here: 3078 case llvm::Triple::nvptx: 3079 case llvm::Triple::nvptx64: 3080 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3081 << TargetOpts.Triple; 3082 break; 3083 } 3084 } 3085 } 3086 3087 // Set the flag to prevent the implementation from emitting device exception 3088 // handling code for those requiring so. 3089 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 3090 Opts.Exceptions = 0; 3091 Opts.CXXExceptions = 0; 3092 } 3093 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3094 Opts.OpenMPCUDANumSMs = 3095 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3096 Opts.OpenMPCUDANumSMs, Diags); 3097 Opts.OpenMPCUDABlocksPerSM = 3098 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3099 Opts.OpenMPCUDABlocksPerSM, Diags); 3100 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3101 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3102 Opts.OpenMPCUDAReductionBufNum, Diags); 3103 } 3104 3105 // Prevent auto-widening the representation of loop counters during an 3106 // OpenMP collapse clause. 3107 Opts.OpenMPOptimisticCollapse = 3108 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3109 3110 // Get the OpenMP target triples if any. 3111 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3112 3113 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3114 llvm::Triple TT(A->getValue(i)); 3115 3116 if (TT.getArch() == llvm::Triple::UnknownArch || 3117 !(TT.getArch() == llvm::Triple::aarch64 || 3118 TT.getArch() == llvm::Triple::ppc || 3119 TT.getArch() == llvm::Triple::ppc64 || 3120 TT.getArch() == llvm::Triple::ppc64le || 3121 TT.getArch() == llvm::Triple::nvptx || 3122 TT.getArch() == llvm::Triple::nvptx64 || 3123 TT.getArch() == llvm::Triple::x86 || 3124 TT.getArch() == llvm::Triple::x86_64)) 3125 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3126 else 3127 Opts.OMPTargetTriples.push_back(TT); 3128 } 3129 } 3130 3131 // Get OpenMP host file path if any and report if a non existent file is 3132 // found 3133 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3134 Opts.OMPHostIRFile = A->getValue(); 3135 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3136 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3137 << Opts.OMPHostIRFile; 3138 } 3139 3140 Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device); 3141 3142 // Set CUDA mode for OpenMP target NVPTX if specified in options 3143 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 3144 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3145 3146 // Set CUDA mode for OpenMP target NVPTX if specified in options 3147 Opts.OpenMPCUDAForceFullRuntime = 3148 Opts.OpenMPIsDevice && T.isNVPTX() && 3149 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3150 3151 // Record whether the __DEPRECATED define was requested. 3152 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3153 OPT_fno_deprecated_macro, 3154 Opts.Deprecated); 3155 3156 // FIXME: Eliminate this dependency. 3157 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3158 OptSize = getOptimizationLevelSize(Args); 3159 Opts.Optimize = Opt != 0; 3160 Opts.OptimizeSize = OptSize != 0; 3161 3162 // This is the __NO_INLINE__ define, which just depends on things like the 3163 // optimization level and -fno-inline, not actually whether the backend has 3164 // inlining enabled. 3165 Opts.NoInlineDefine = !Opts.Optimize; 3166 if (Arg *InlineArg = Args.getLastArg( 3167 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3168 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3169 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3170 Opts.NoInlineDefine = true; 3171 3172 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 3173 Args.hasArg(OPT_cl_fast_relaxed_math); 3174 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3175 Args.hasArg(OPT_cl_finite_math_only) || 3176 Args.hasArg(OPT_cl_fast_relaxed_math); 3177 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3178 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3179 Args.hasArg(OPT_cl_fast_relaxed_math); 3180 3181 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3182 StringRef Val = A->getValue(); 3183 if (Val == "fast") 3184 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 3185 else if (Val == "on") 3186 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 3187 else if (Val == "off") 3188 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 3189 else 3190 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3191 } 3192 3193 LangOptions::FPRoundingModeKind FPRM = LangOptions::FPR_ToNearest; 3194 if (Args.hasArg(OPT_frounding_math)) { 3195 FPRM = LangOptions::FPR_Dynamic; 3196 } 3197 Opts.setFPRoundingMode(FPRM); 3198 3199 if (Args.hasArg(OPT_ftrapping_math)) { 3200 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3201 } 3202 3203 if (Args.hasArg(OPT_fno_trapping_math)) { 3204 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3205 } 3206 3207 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3208 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3209 StringRef Val = A->getValue(); 3210 if (Val.equals("ignore")) 3211 FPEB = LangOptions::FPE_Ignore; 3212 else if (Val.equals("maytrap")) 3213 FPEB = LangOptions::FPE_MayTrap; 3214 else if (Val.equals("strict")) 3215 FPEB = LangOptions::FPE_Strict; 3216 else 3217 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3218 } 3219 Opts.setFPExceptionMode(FPEB); 3220 3221 Opts.RetainCommentsFromSystemHeaders = 3222 Args.hasArg(OPT_fretain_comments_from_system_headers); 3223 3224 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3225 switch (SSP) { 3226 default: 3227 Diags.Report(diag::err_drv_invalid_value) 3228 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3229 break; 3230 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3231 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3232 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3233 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3234 } 3235 3236 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3237 StringRef Val = A->getValue(); 3238 if (Val == "uninitialized") 3239 Opts.setTrivialAutoVarInit( 3240 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3241 else if (Val == "zero") 3242 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3243 else if (Val == "pattern") 3244 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3245 else 3246 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3247 } 3248 3249 // Parse -fsanitize= arguments. 3250 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3251 Diags, Opts.Sanitize); 3252 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3253 Opts.SanitizeAddressFieldPadding = 3254 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3255 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3256 std::vector<std::string> systemBlacklists = 3257 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3258 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3259 systemBlacklists.begin(), 3260 systemBlacklists.end()); 3261 3262 // -fxray-instrument 3263 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3264 Opts.XRayAlwaysEmitCustomEvents = 3265 Args.hasArg(OPT_fxray_always_emit_customevents); 3266 Opts.XRayAlwaysEmitTypedEvents = 3267 Args.hasArg(OPT_fxray_always_emit_typedevents); 3268 3269 // -fxray-{always,never}-instrument= filenames. 3270 Opts.XRayAlwaysInstrumentFiles = 3271 Args.getAllArgValues(OPT_fxray_always_instrument); 3272 Opts.XRayNeverInstrumentFiles = 3273 Args.getAllArgValues(OPT_fxray_never_instrument); 3274 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3275 3276 // -fforce-emit-vtables 3277 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3278 3279 // -fallow-editor-placeholders 3280 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3281 3282 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3283 3284 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3285 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3286 3287 StringRef Ver = A->getValue(); 3288 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3289 unsigned Major, Minor = 0; 3290 3291 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3292 // y or y.0 (4 <= y <= current version). 3293 if (!VerParts.first.startswith("0") && 3294 !VerParts.first.getAsInteger(10, Major) && 3295 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3296 (Major == 3 ? VerParts.second.size() == 1 && 3297 !VerParts.second.getAsInteger(10, Minor) 3298 : VerParts.first.size() == Ver.size() || 3299 VerParts.second == "0")) { 3300 // Got a valid version number. 3301 if (Major == 3 && Minor <= 8) 3302 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3303 else if (Major <= 4) 3304 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3305 else if (Major <= 6) 3306 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3307 else if (Major <= 7) 3308 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3309 else if (Major <= 9) 3310 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3311 } else if (Ver != "latest") { 3312 Diags.Report(diag::err_drv_invalid_value) 3313 << A->getAsString(Args) << A->getValue(); 3314 } 3315 } 3316 3317 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3318 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3319 3320 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3321 } 3322 3323 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3324 switch (Action) { 3325 case frontend::ASTDeclList: 3326 case frontend::ASTDump: 3327 case frontend::ASTPrint: 3328 case frontend::ASTView: 3329 case frontend::EmitAssembly: 3330 case frontend::EmitBC: 3331 case frontend::EmitHTML: 3332 case frontend::EmitLLVM: 3333 case frontend::EmitLLVMOnly: 3334 case frontend::EmitCodeGenOnly: 3335 case frontend::EmitObj: 3336 case frontend::FixIt: 3337 case frontend::GenerateModule: 3338 case frontend::GenerateModuleInterface: 3339 case frontend::GenerateHeaderModule: 3340 case frontend::GeneratePCH: 3341 case frontend::GenerateInterfaceIfsExpV1: 3342 case frontend::ParseSyntaxOnly: 3343 case frontend::ModuleFileInfo: 3344 case frontend::VerifyPCH: 3345 case frontend::PluginAction: 3346 case frontend::RewriteObjC: 3347 case frontend::RewriteTest: 3348 case frontend::RunAnalysis: 3349 case frontend::TemplightDump: 3350 case frontend::MigrateSource: 3351 return false; 3352 3353 case frontend::DumpCompilerOptions: 3354 case frontend::DumpRawTokens: 3355 case frontend::DumpTokens: 3356 case frontend::InitOnly: 3357 case frontend::PrintPreamble: 3358 case frontend::PrintPreprocessedInput: 3359 case frontend::RewriteMacros: 3360 case frontend::RunPreprocessorOnly: 3361 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3362 return true; 3363 } 3364 llvm_unreachable("invalid frontend action"); 3365 } 3366 3367 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3368 DiagnosticsEngine &Diags, 3369 frontend::ActionKind Action) { 3370 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3371 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3372 Args.hasArg(OPT_pch_through_hdrstop_use); 3373 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3374 Opts.PCHThroughHeader = 3375 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3376 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3377 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3378 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3379 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3380 3381 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3382 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3383 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3384 3385 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3386 auto Split = StringRef(A).split('='); 3387 Opts.MacroPrefixMap.insert( 3388 {std::string(Split.first), std::string(Split.second)}); 3389 } 3390 3391 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3392 StringRef Value(A->getValue()); 3393 size_t Comma = Value.find(','); 3394 unsigned Bytes = 0; 3395 unsigned EndOfLine = 0; 3396 3397 if (Comma == StringRef::npos || 3398 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3399 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3400 Diags.Report(diag::err_drv_preamble_format); 3401 else { 3402 Opts.PrecompiledPreambleBytes.first = Bytes; 3403 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3404 } 3405 } 3406 3407 // Add the __CET__ macro if a CFProtection option is set. 3408 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3409 StringRef Name = A->getValue(); 3410 if (Name == "branch") 3411 Opts.addMacroDef("__CET__=1"); 3412 else if (Name == "return") 3413 Opts.addMacroDef("__CET__=2"); 3414 else if (Name == "full") 3415 Opts.addMacroDef("__CET__=3"); 3416 } 3417 3418 // Add macros from the command line. 3419 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3420 if (A->getOption().matches(OPT_D)) 3421 Opts.addMacroDef(A->getValue()); 3422 else 3423 Opts.addMacroUndef(A->getValue()); 3424 } 3425 3426 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3427 3428 // Add the ordered list of -includes. 3429 for (const auto *A : Args.filtered(OPT_include)) 3430 Opts.Includes.emplace_back(A->getValue()); 3431 3432 for (const auto *A : Args.filtered(OPT_chain_include)) 3433 Opts.ChainedIncludes.emplace_back(A->getValue()); 3434 3435 for (const auto *A : Args.filtered(OPT_remap_file)) { 3436 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3437 3438 if (Split.second.empty()) { 3439 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3440 continue; 3441 } 3442 3443 Opts.addRemappedFile(Split.first, Split.second); 3444 } 3445 3446 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3447 StringRef Name = A->getValue(); 3448 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3449 .Case("libc++", ARCXX_libcxx) 3450 .Case("libstdc++", ARCXX_libstdcxx) 3451 .Case("none", ARCXX_nolib) 3452 .Default(~0U); 3453 if (Library == ~0U) 3454 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3455 else 3456 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3457 } 3458 3459 // Always avoid lexing editor placeholders when we're just running the 3460 // preprocessor as we never want to emit the 3461 // "editor placeholder in source file" error in PP only mode. 3462 if (isStrictlyPreprocessorAction(Action)) 3463 Opts.LexEditorPlaceholders = false; 3464 3465 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3466 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3467 } 3468 3469 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3470 ArgList &Args, 3471 frontend::ActionKind Action) { 3472 if (isStrictlyPreprocessorAction(Action)) 3473 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3474 else 3475 Opts.ShowCPP = 0; 3476 3477 Opts.ShowComments = Args.hasArg(OPT_C); 3478 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3479 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3480 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3481 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3482 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3483 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3484 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3485 } 3486 3487 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3488 DiagnosticsEngine &Diags) { 3489 Opts.CodeModel = std::string(getCodeModel(Args, Diags)); 3490 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3491 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3492 StringRef Value = A->getValue(); 3493 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3494 .Case("default", llvm::EABI::Default) 3495 .Case("4", llvm::EABI::EABI4) 3496 .Case("5", llvm::EABI::EABI5) 3497 .Case("gnu", llvm::EABI::GNU) 3498 .Default(llvm::EABI::Unknown); 3499 if (EABIVersion == llvm::EABI::Unknown) 3500 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3501 << Value; 3502 else 3503 Opts.EABIVersion = EABIVersion; 3504 } 3505 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3506 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3507 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3508 Opts.LinkerVersion = 3509 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3510 Opts.Triple = std::string(Args.getLastArgValue(OPT_triple)); 3511 // Use the default target triple if unspecified. 3512 if (Opts.Triple.empty()) 3513 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3514 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3515 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3516 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3517 Opts.NVPTXUseShortPointers = Args.hasFlag( 3518 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3519 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3520 llvm::VersionTuple Version; 3521 if (Version.tryParse(A->getValue())) 3522 Diags.Report(diag::err_drv_invalid_value) 3523 << A->getAsString(Args) << A->getValue(); 3524 else 3525 Opts.SDKVersion = Version; 3526 } 3527 } 3528 3529 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3530 ArrayRef<const char *> CommandLineArgs, 3531 DiagnosticsEngine &Diags) { 3532 bool Success = true; 3533 3534 // Parse the arguments. 3535 const OptTable &Opts = getDriverOptTable(); 3536 const unsigned IncludedFlagsBitmask = options::CC1Option; 3537 unsigned MissingArgIndex, MissingArgCount; 3538 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3539 MissingArgCount, IncludedFlagsBitmask); 3540 LangOptions &LangOpts = *Res.getLangOpts(); 3541 3542 // Check for missing argument error. 3543 if (MissingArgCount) { 3544 Diags.Report(diag::err_drv_missing_argument) 3545 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3546 Success = false; 3547 } 3548 3549 // Issue errors on unknown arguments. 3550 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3551 auto ArgString = A->getAsString(Args); 3552 std::string Nearest; 3553 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3554 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3555 else 3556 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3557 << ArgString << Nearest; 3558 Success = false; 3559 } 3560 3561 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3562 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3563 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3564 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3565 Res.getDependencyOutputOpts().Targets.empty()) { 3566 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3567 Success = false; 3568 } 3569 Success &= 3570 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3571 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3572 ParseCommentArgs(LangOpts.CommentOpts, Args); 3573 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3574 // FIXME: We shouldn't have to pass the DashX option around here 3575 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3576 LangOpts.IsHeaderFile); 3577 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3578 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3579 Res.getTargetOpts(), Res.getFrontendOpts()); 3580 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3581 Res.getFileSystemOpts().WorkingDir); 3582 llvm::Triple T(Res.getTargetOpts().Triple); 3583 if (DashX.getFormat() == InputKind::Precompiled || 3584 DashX.getLanguage() == Language::LLVM_IR) { 3585 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3586 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3587 // what the input type is. 3588 if (Args.hasArg(OPT_fobjc_arc)) 3589 LangOpts.ObjCAutoRefCount = 1; 3590 // PIClevel and PIELevel are needed during code generation and this should be 3591 // set regardless of the input type. 3592 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3593 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3594 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3595 Diags, LangOpts.Sanitize); 3596 } else { 3597 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3598 // FIXME: Should we really be calling this for an Language::Asm input? 3599 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3600 Res.getPreprocessorOpts(), Diags); 3601 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3602 LangOpts.ObjCExceptions = 1; 3603 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3604 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3605 // preprocessed input as we don't expect it to be used with -std=libc++ 3606 // anyway. 3607 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3608 } 3609 } 3610 3611 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3612 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3613 3614 LangOpts.FunctionAlignment = 3615 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3616 3617 if (LangOpts.CUDA) { 3618 // During CUDA device-side compilation, the aux triple is the 3619 // triple used for host compilation. 3620 if (LangOpts.CUDAIsDevice) 3621 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3622 } 3623 3624 // Set the triple of the host for OpenMP device compile. 3625 if (LangOpts.OpenMPIsDevice) 3626 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3627 3628 // FIXME: Override value name discarding when asan or msan is used because the 3629 // backend passes depend on the name of the alloca in order to print out 3630 // names. 3631 Res.getCodeGenOpts().DiscardValueNames &= 3632 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3633 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3634 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3635 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3636 3637 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3638 Res.getFrontendOpts().ProgramAction); 3639 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3640 Res.getFrontendOpts().ProgramAction); 3641 3642 // Turn on -Wspir-compat for SPIR target. 3643 if (T.isSPIR()) 3644 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3645 3646 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3647 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3648 !Res.getLangOpts()->Sanitize.empty()) { 3649 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3650 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3651 } 3652 return Success; 3653 } 3654 3655 std::string CompilerInvocation::getModuleHash() const { 3656 // Note: For QoI reasons, the things we use as a hash here should all be 3657 // dumped via the -module-info flag. 3658 using llvm::hash_code; 3659 using llvm::hash_value; 3660 using llvm::hash_combine; 3661 using llvm::hash_combine_range; 3662 3663 // Start the signature with the compiler version. 3664 // FIXME: We'd rather use something more cryptographically sound than 3665 // CityHash, but this will do for now. 3666 hash_code code = hash_value(getClangFullRepositoryVersion()); 3667 3668 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3669 // and getClangFullRepositoryVersion() doesn't include git revision. 3670 code = hash_combine(code, serialization::VERSION_MAJOR, 3671 serialization::VERSION_MINOR); 3672 3673 // Extend the signature with the language options 3674 #define LANGOPT(Name, Bits, Default, Description) \ 3675 code = hash_combine(code, LangOpts->Name); 3676 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3677 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3678 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3679 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3680 #include "clang/Basic/LangOptions.def" 3681 3682 for (StringRef Feature : LangOpts->ModuleFeatures) 3683 code = hash_combine(code, Feature); 3684 3685 // Extend the signature with the target options. 3686 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3687 TargetOpts->ABI); 3688 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3689 code = hash_combine(code, FeatureAsWritten); 3690 3691 // Extend the signature with preprocessor options. 3692 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3693 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3694 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3695 3696 for (const auto &I : getPreprocessorOpts().Macros) { 3697 // If we're supposed to ignore this macro for the purposes of modules, 3698 // don't put it into the hash. 3699 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3700 // Check whether we're ignoring this macro. 3701 StringRef MacroDef = I.first; 3702 if (hsOpts.ModulesIgnoreMacros.count( 3703 llvm::CachedHashString(MacroDef.split('=').first))) 3704 continue; 3705 } 3706 3707 code = hash_combine(code, I.first, I.second); 3708 } 3709 3710 // Extend the signature with the sysroot and other header search options. 3711 code = hash_combine(code, hsOpts.Sysroot, 3712 hsOpts.ModuleFormat, 3713 hsOpts.UseDebugInfo, 3714 hsOpts.UseBuiltinIncludes, 3715 hsOpts.UseStandardSystemIncludes, 3716 hsOpts.UseStandardCXXIncludes, 3717 hsOpts.UseLibcxx, 3718 hsOpts.ModulesValidateDiagnosticOptions); 3719 code = hash_combine(code, hsOpts.ResourceDir); 3720 3721 if (hsOpts.ModulesStrictContextHash) { 3722 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3723 hsOpts.SystemHeaderPrefixes.end()); 3724 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3725 hsOpts.UserEntries.end()); 3726 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3727 hsOpts.UserEntries.size(), UEC); 3728 3729 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3730 #define DIAGOPT(Name, Bits, Default) \ 3731 code = hash_combine(code, diagOpts.Name); 3732 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3733 code = hash_combine(code, diagOpts.get##Name()); 3734 #include "clang/Basic/DiagnosticOptions.def" 3735 #undef DIAGOPT 3736 #undef ENUM_DIAGOPT 3737 } 3738 3739 // Extend the signature with the user build path. 3740 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3741 3742 // Extend the signature with the module file extensions. 3743 const FrontendOptions &frontendOpts = getFrontendOpts(); 3744 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3745 code = ext->hashExtension(code); 3746 } 3747 3748 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3749 // affects the debug info in the PCM. 3750 if (getCodeGenOpts().DebugTypeExtRefs) 3751 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3752 code = hash_combine(code, KeyValue.first, KeyValue.second); 3753 3754 // Extend the signature with the enabled sanitizers, if at least one is 3755 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3756 SanitizerSet SanHash = LangOpts->Sanitize; 3757 SanHash.clear(getPPTransparentSanitizers()); 3758 if (!SanHash.empty()) 3759 code = hash_combine(code, SanHash.Mask); 3760 3761 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3762 } 3763 3764 namespace clang { 3765 3766 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3767 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3768 DiagnosticsEngine &Diags) { 3769 return createVFSFromCompilerInvocation(CI, Diags, 3770 llvm::vfs::getRealFileSystem()); 3771 } 3772 3773 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3774 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3775 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3776 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3777 return BaseFS; 3778 3779 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3780 // earlier vfs files are on the bottom 3781 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3782 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3783 Result->getBufferForFile(File); 3784 if (!Buffer) { 3785 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3786 continue; 3787 } 3788 3789 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3790 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3791 /*DiagContext*/ nullptr, Result); 3792 if (!FS) { 3793 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3794 continue; 3795 } 3796 3797 Result = FS; 3798 } 3799 return Result; 3800 } 3801 3802 } // namespace clang 3803