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); 795 796 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 797 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 798 llvm::Triple::arm, llvm::Triple::armeb}; 799 800 llvm::Triple T(TargetOpts.Triple); 801 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 802 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 803 Opts.EnableDebugEntryValues = Args.hasArg(OPT_femit_debug_entry_values); 804 805 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 806 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 807 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 808 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 809 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 810 OPT_fuse_register_sized_bitfield_access); 811 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 812 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 813 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 814 Args.hasArg(OPT_new_struct_path_tbaa); 815 Opts.FineGrainedBitfieldAccesses = 816 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 817 OPT_fno_fine_grained_bitfield_accesses, false); 818 Opts.DwarfDebugFlags = 819 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 820 Opts.RecordCommandLine = 821 std::string(Args.getLastArgValue(OPT_record_command_line)); 822 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 823 Opts.NoCommon = Args.hasArg(OPT_fno_common); 824 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables); 825 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 826 Opts.OptimizeSize = getOptimizationLevelSize(Args); 827 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 828 Args.hasArg(OPT_ffreestanding)); 829 if (Opts.SimplifyLibCalls) 830 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 831 Opts.UnrollLoops = 832 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 833 (Opts.OptimizationLevel > 1)); 834 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 835 836 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 837 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 838 Opts.SampleProfileFile = 839 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 840 Opts.DebugInfoForProfiling = Args.hasFlag( 841 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 842 Opts.DebugNameTable = static_cast<unsigned>( 843 Args.hasArg(OPT_ggnu_pubnames) 844 ? llvm::DICompileUnit::DebugNameTableKind::GNU 845 : Args.hasArg(OPT_gpubnames) 846 ? llvm::DICompileUnit::DebugNameTableKind::Default 847 : llvm::DICompileUnit::DebugNameTableKind::None); 848 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 849 850 setPGOInstrumentor(Opts, Args, Diags); 851 Opts.InstrProfileOutput = 852 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 853 Opts.ProfileInstrumentUsePath = 854 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 855 if (!Opts.ProfileInstrumentUsePath.empty()) 856 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 857 Opts.ProfileRemappingFile = 858 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 859 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 860 Diags.Report(diag::err_drv_argument_only_allowed_with) 861 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 862 << "-fexperimental-new-pass-manager"; 863 } 864 865 Opts.CoverageMapping = 866 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 867 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 868 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 869 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 870 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 871 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 872 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 873 Opts.RegisterGlobalDtorsWithAtExit = 874 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 875 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 876 Opts.CodeModel = TargetOpts.CodeModel; 877 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 878 879 // Handle -mframe-pointer option. 880 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 881 CodeGenOptions::FramePointerKind FP; 882 StringRef Name = A->getValue(); 883 bool ValidFP = true; 884 if (Name == "none") 885 FP = CodeGenOptions::FramePointerKind::None; 886 else if (Name == "non-leaf") 887 FP = CodeGenOptions::FramePointerKind::NonLeaf; 888 else if (Name == "all") 889 FP = CodeGenOptions::FramePointerKind::All; 890 else { 891 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 892 Success = false; 893 ValidFP = false; 894 } 895 if (ValidFP) 896 Opts.setFramePointer(FP); 897 } 898 899 Opts.DisableFree = Args.hasArg(OPT_disable_free); 900 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 901 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 902 Opts.NoEscapingBlockTailCalls = 903 Args.hasArg(OPT_fno_escaping_block_tail_calls); 904 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 905 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 906 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 907 Args.hasArg(OPT_cl_fast_relaxed_math); 908 Opts.LimitFloatPrecision = 909 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 910 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 911 Args.hasArg(OPT_cl_finite_math_only) || 912 Args.hasArg(OPT_cl_fast_relaxed_math)); 913 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 914 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 915 Args.hasArg(OPT_cl_finite_math_only) || 916 Args.hasArg(OPT_cl_fast_relaxed_math)); 917 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 918 Args.hasArg(OPT_cl_no_signed_zeros) || 919 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 920 Args.hasArg(OPT_cl_fast_relaxed_math)); 921 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 922 Opts.CorrectlyRoundedDivSqrt = 923 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 924 Opts.UniformWGSize = 925 Args.hasArg(OPT_cl_uniform_work_group_size); 926 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 927 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 928 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 929 Opts.StrictFloatCastOverflow = 930 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 931 932 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 933 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 934 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 935 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 936 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 937 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 938 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 939 Opts.IncrementalLinkerCompatible = 940 Args.hasArg(OPT_mincremental_linker_compatible); 941 Opts.PIECopyRelocations = 942 Args.hasArg(OPT_mpie_copy_relocations); 943 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 944 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 945 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 946 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 947 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 948 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 949 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 950 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 951 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 952 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 953 Args.hasArg(OPT_cl_fast_relaxed_math); 954 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 955 Opts.RelocationModel = getRelocModel(Args, Diags); 956 Opts.ThreadModel = 957 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 958 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 959 Diags.Report(diag::err_drv_invalid_value) 960 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 961 << Opts.ThreadModel; 962 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 963 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 964 965 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 966 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 967 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 968 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 969 970 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 971 972 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 973 974 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 975 976 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 977 978 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 979 Opts.PrepareForThinLTO = false; 980 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 981 StringRef S = A->getValue(); 982 if (S == "thin") 983 Opts.PrepareForThinLTO = true; 984 else if (S != "full") 985 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 986 } 987 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 988 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 989 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 990 if (IK.getLanguage() != Language::LLVM_IR) 991 Diags.Report(diag::err_drv_argument_only_allowed_with) 992 << A->getAsString(Args) << "-x ir"; 993 Opts.ThinLTOIndexFile = 994 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 995 } 996 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 997 Opts.SaveTempsFilePrefix = 998 llvm::StringSwitch<std::string>(A->getValue()) 999 .Case("obj", FrontendOpts.OutputFile) 1000 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 1001 1002 Opts.ThinLinkBitcodeFile = 1003 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 1004 1005 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 1006 1007 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 1008 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 1009 1010 Opts.PreferVectorWidth = 1011 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1012 1013 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1014 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1015 1016 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1017 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1018 1019 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 1020 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1021 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1022 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1023 Opts.CoverageDataFile = 1024 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1025 Opts.CoverageNotesFile = 1026 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1027 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 1028 Opts.CoverageNoFunctionNamesInData = 1029 Args.hasArg(OPT_coverage_no_function_names_in_data); 1030 Opts.ProfileFilterFiles = 1031 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1032 Opts.ProfileExcludeFiles = 1033 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1034 Opts.CoverageExitBlockBeforeBody = 1035 Args.hasArg(OPT_coverage_exit_block_before_body); 1036 if (Args.hasArg(OPT_coverage_version_EQ)) { 1037 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1038 if (CoverageVersion.size() != 4) { 1039 Diags.Report(diag::err_drv_invalid_value) 1040 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1041 << CoverageVersion; 1042 } else { 1043 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1044 } 1045 } 1046 } 1047 // Handle -fembed-bitcode option. 1048 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1049 StringRef Name = A->getValue(); 1050 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1051 .Case("off", CodeGenOptions::Embed_Off) 1052 .Case("all", CodeGenOptions::Embed_All) 1053 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1054 .Case("marker", CodeGenOptions::Embed_Marker) 1055 .Default(~0U); 1056 if (Model == ~0U) { 1057 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1058 Success = false; 1059 } else 1060 Opts.setEmbedBitcode( 1061 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1062 } 1063 // FIXME: For backend options that are not yet recorded as function 1064 // attributes in the IR, keep track of them so we can embed them in a 1065 // separate data section and use them when building the bitcode. 1066 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1067 for (const auto &A : Args) { 1068 // Do not encode output and input. 1069 if (A->getOption().getID() == options::OPT_o || 1070 A->getOption().getID() == options::OPT_INPUT || 1071 A->getOption().getID() == options::OPT_x || 1072 A->getOption().getID() == options::OPT_fembed_bitcode || 1073 (A->getOption().getGroup().isValid() && 1074 A->getOption().getGroup().getID() == options::OPT_W_Group)) 1075 continue; 1076 ArgStringList ASL; 1077 A->render(Args, ASL); 1078 for (const auto &arg : ASL) { 1079 StringRef ArgStr(arg); 1080 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1081 // using \00 to separate each commandline options. 1082 Opts.CmdArgs.push_back('\0'); 1083 } 1084 } 1085 } 1086 1087 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1088 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1089 Opts.InstrumentFunctionsAfterInlining = 1090 Args.hasArg(OPT_finstrument_functions_after_inlining); 1091 Opts.InstrumentFunctionEntryBare = 1092 Args.hasArg(OPT_finstrument_function_entry_bare); 1093 1094 Opts.XRayInstrumentFunctions = 1095 Args.hasArg(OPT_fxray_instrument); 1096 Opts.XRayAlwaysEmitCustomEvents = 1097 Args.hasArg(OPT_fxray_always_emit_customevents); 1098 Opts.XRayAlwaysEmitTypedEvents = 1099 Args.hasArg(OPT_fxray_always_emit_typedevents); 1100 Opts.XRayInstructionThreshold = 1101 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1102 Opts.XRayIgnoreLoops = 1103 Args.hasArg(OPT_fxray_ignore_loops, OPT_fno_xray_ignore_loops, false); 1104 1105 auto XRayInstrBundles = 1106 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1107 if (XRayInstrBundles.empty()) 1108 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1109 else 1110 for (const auto &A : XRayInstrBundles) 1111 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1112 Diags, Opts.XRayInstrumentationBundle); 1113 1114 Opts.PatchableFunctionEntryCount = 1115 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1116 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1117 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1118 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1119 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1120 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1121 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1122 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1123 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1124 1125 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1126 StringRef Name = A->getValue(); 1127 if (Name == "full") { 1128 Opts.CFProtectionReturn = 1; 1129 Opts.CFProtectionBranch = 1; 1130 } else if (Name == "return") 1131 Opts.CFProtectionReturn = 1; 1132 else if (Name == "branch") 1133 Opts.CFProtectionBranch = 1; 1134 else if (Name != "none") { 1135 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1136 Success = false; 1137 } 1138 } 1139 1140 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1141 OPT_compress_debug_sections_EQ)) { 1142 if (A->getOption().getID() == OPT_compress_debug_sections) { 1143 // TODO: be more clever about the compression type auto-detection 1144 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1145 } else { 1146 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1147 .Case("none", llvm::DebugCompressionType::None) 1148 .Case("zlib", llvm::DebugCompressionType::Z) 1149 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1150 .Default(llvm::DebugCompressionType::None); 1151 Opts.setCompressDebugSections(DCT); 1152 } 1153 } 1154 1155 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1156 Opts.DebugCompilationDir = 1157 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1158 for (auto *A : 1159 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1160 CodeGenOptions::BitcodeFileToLink F; 1161 F.Filename = A->getValue(); 1162 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1163 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1164 // When linking CUDA bitcode, propagate function attributes so that 1165 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1166 F.PropagateAttrs = true; 1167 F.Internalize = true; 1168 } 1169 Opts.LinkBitcodeFiles.push_back(F); 1170 } 1171 Opts.SanitizeCoverageType = 1172 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1173 Opts.SanitizeCoverageIndirectCalls = 1174 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1175 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1176 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1177 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1178 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1179 Opts.SanitizeCoverage8bitCounters = 1180 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1181 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1182 Opts.SanitizeCoverageTracePCGuard = 1183 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1184 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1185 Opts.SanitizeCoverageInline8bitCounters = 1186 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1187 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1188 Opts.SanitizeCoverageStackDepth = 1189 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1190 Opts.SanitizeMemoryTrackOrigins = 1191 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1192 Opts.SanitizeMemoryUseAfterDtor = 1193 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1194 OPT_fno_sanitize_memory_use_after_dtor, 1195 false); 1196 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1197 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1198 Opts.SanitizeCfiICallGeneralizePointers = 1199 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1200 Opts.SanitizeCfiCanonicalJumpTables = 1201 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1202 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1203 if (Arg *A = Args.getLastArg( 1204 OPT_fsanitize_address_poison_custom_array_cookie, 1205 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1206 Opts.SanitizeAddressPoisonCustomArrayCookie = 1207 A->getOption().getID() == 1208 OPT_fsanitize_address_poison_custom_array_cookie; 1209 } 1210 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1211 OPT_fno_sanitize_address_use_after_scope)) { 1212 Opts.SanitizeAddressUseAfterScope = 1213 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1214 } 1215 Opts.SanitizeAddressGlobalsDeadStripping = 1216 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1217 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1218 OPT_fno_sanitize_address_use_odr_indicator)) { 1219 Opts.SanitizeAddressUseOdrIndicator = 1220 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1221 } 1222 Opts.SSPBufferSize = 1223 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1224 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1225 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1226 StringRef Val = A->getValue(); 1227 unsigned StackAlignment = Opts.StackAlignment; 1228 Val.getAsInteger(10, StackAlignment); 1229 Opts.StackAlignment = StackAlignment; 1230 } 1231 1232 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1233 StringRef Val = A->getValue(); 1234 unsigned StackProbeSize = Opts.StackProbeSize; 1235 Val.getAsInteger(0, StackProbeSize); 1236 Opts.StackProbeSize = StackProbeSize; 1237 } 1238 1239 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1240 1241 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1242 StringRef Name = A->getValue(); 1243 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1244 .Case("legacy", CodeGenOptions::Legacy) 1245 .Case("non-legacy", CodeGenOptions::NonLegacy) 1246 .Case("mixed", CodeGenOptions::Mixed) 1247 .Default(~0U); 1248 if (Method == ~0U) { 1249 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1250 Success = false; 1251 } else { 1252 Opts.setObjCDispatchMethod( 1253 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1254 } 1255 } 1256 1257 1258 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1259 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1260 1261 if (Args.getLastArg(OPT_femulated_tls) || 1262 Args.getLastArg(OPT_fno_emulated_tls)) { 1263 Opts.ExplicitEmulatedTLS = true; 1264 Opts.EmulatedTLS = 1265 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1266 } 1267 1268 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1269 StringRef Name = A->getValue(); 1270 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1271 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1272 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1273 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1274 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1275 .Default(~0U); 1276 if (Model == ~0U) { 1277 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1278 Success = false; 1279 } else { 1280 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1281 } 1282 } 1283 1284 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1285 1286 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1287 StringRef Val = A->getValue(); 1288 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1289 if (Opts.FPDenormalMode == llvm::DenormalMode::Invalid) 1290 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1291 } 1292 1293 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1294 StringRef Val = A->getValue(); 1295 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1296 if (Opts.FP32DenormalMode == llvm::DenormalMode::Invalid) 1297 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1298 } 1299 1300 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1301 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1302 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1303 } else { 1304 assert(A->getOption().matches(OPT_freg_struct_return)); 1305 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1306 } 1307 } 1308 1309 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1310 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1311 bool NeedLocTracking = false; 1312 1313 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1314 if (!Opts.OptRecordFile.empty()) 1315 NeedLocTracking = true; 1316 1317 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1318 Opts.OptRecordPasses = A->getValue(); 1319 NeedLocTracking = true; 1320 } 1321 1322 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1323 Opts.OptRecordFormat = A->getValue(); 1324 NeedLocTracking = true; 1325 } 1326 1327 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1328 Opts.OptimizationRemarkPattern = 1329 GenerateOptimizationRemarkRegex(Diags, Args, A); 1330 NeedLocTracking = true; 1331 } 1332 1333 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1334 Opts.OptimizationRemarkMissedPattern = 1335 GenerateOptimizationRemarkRegex(Diags, Args, A); 1336 NeedLocTracking = true; 1337 } 1338 1339 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1340 Opts.OptimizationRemarkAnalysisPattern = 1341 GenerateOptimizationRemarkRegex(Diags, Args, A); 1342 NeedLocTracking = true; 1343 } 1344 1345 Opts.DiagnosticsWithHotness = 1346 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1347 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1348 bool UsingProfile = UsingSampleProfile || 1349 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1350 1351 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1352 // An IR file will contain PGO as metadata 1353 IK.getLanguage() != Language::LLVM_IR) 1354 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1355 << "-fdiagnostics-show-hotness"; 1356 1357 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1358 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1359 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1360 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1361 << "-fdiagnostics-hotness-threshold="; 1362 1363 // If the user requested to use a sample profile for PGO, then the 1364 // backend will need to track source location information so the profile 1365 // can be incorporated into the IR. 1366 if (UsingSampleProfile) 1367 NeedLocTracking = true; 1368 1369 // If the user requested a flag that requires source locations available in 1370 // the backend, make sure that the backend tracks source location information. 1371 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1372 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1373 1374 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1375 1376 // Parse -fsanitize-recover= arguments. 1377 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1378 parseSanitizerKinds("-fsanitize-recover=", 1379 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1380 Opts.SanitizeRecover); 1381 parseSanitizerKinds("-fsanitize-trap=", 1382 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1383 Opts.SanitizeTrap); 1384 1385 Opts.CudaGpuBinaryFileName = 1386 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1387 1388 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1389 1390 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1391 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1392 1393 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1394 1395 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1396 1397 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1398 StringRef SignScope = A->getValue(); 1399 1400 if (SignScope.equals_lower("none")) 1401 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1402 else if (SignScope.equals_lower("all")) 1403 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1404 else if (SignScope.equals_lower("non-leaf")) 1405 Opts.setSignReturnAddress( 1406 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1407 else 1408 Diags.Report(diag::err_drv_invalid_value) 1409 << A->getAsString(Args) << SignScope; 1410 1411 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1412 StringRef SignKey = A->getValue(); 1413 if (!SignScope.empty() && !SignKey.empty()) { 1414 if (SignKey.equals_lower("a_key")) 1415 Opts.setSignReturnAddressKey( 1416 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1417 else if (SignKey.equals_lower("b_key")) 1418 Opts.setSignReturnAddressKey( 1419 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1420 else 1421 Diags.Report(diag::err_drv_invalid_value) 1422 << A->getAsString(Args) << SignKey; 1423 } 1424 } 1425 } 1426 1427 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1428 1429 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1430 1431 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1432 1433 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1434 1435 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1436 1437 Opts.SymbolPartition = 1438 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1439 1440 return Success; 1441 } 1442 1443 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1444 ArgList &Args) { 1445 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1446 Opts.Targets = Args.getAllArgValues(OPT_MT); 1447 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1448 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1449 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1450 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1451 Opts.HeaderIncludeOutputFile = 1452 std::string(Args.getLastArgValue(OPT_header_include_file)); 1453 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1454 if (Args.hasArg(OPT_show_includes)) { 1455 // Writing both /showIncludes and preprocessor output to stdout 1456 // would produce interleaved output, so use stderr for /showIncludes. 1457 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1458 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1459 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1460 else 1461 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1462 } else { 1463 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1464 } 1465 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1466 Opts.ModuleDependencyOutputDir = 1467 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1468 if (Args.hasArg(OPT_MV)) 1469 Opts.OutputFormat = DependencyOutputFormat::NMake; 1470 // Add sanitizer blacklists as extra dependencies. 1471 // They won't be discovered by the regular preprocessor, so 1472 // we let make / ninja to know about this implicit dependency. 1473 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1474 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1475 StringRef Val = A->getValue(); 1476 if (Val.find('=') == StringRef::npos) 1477 Opts.ExtraDeps.push_back(std::string(Val)); 1478 } 1479 if (Opts.IncludeSystemHeaders) { 1480 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1481 StringRef Val = A->getValue(); 1482 if (Val.find('=') == StringRef::npos) 1483 Opts.ExtraDeps.push_back(std::string(Val)); 1484 } 1485 } 1486 } 1487 1488 // Propagate the extra dependencies. 1489 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1490 Opts.ExtraDeps.push_back(A->getValue()); 1491 } 1492 1493 // Only the -fmodule-file=<file> form. 1494 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1495 StringRef Val = A->getValue(); 1496 if (Val.find('=') == StringRef::npos) 1497 Opts.ExtraDeps.push_back(std::string(Val)); 1498 } 1499 } 1500 1501 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1502 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1503 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1504 // Support both clang's -f[no-]color-diagnostics and gcc's 1505 // -f[no-]diagnostics-colors[=never|always|auto]. 1506 enum { 1507 Colors_On, 1508 Colors_Off, 1509 Colors_Auto 1510 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1511 for (auto *A : Args) { 1512 const Option &O = A->getOption(); 1513 if (O.matches(options::OPT_fcolor_diagnostics) || 1514 O.matches(options::OPT_fdiagnostics_color)) { 1515 ShowColors = Colors_On; 1516 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1517 O.matches(options::OPT_fno_diagnostics_color)) { 1518 ShowColors = Colors_Off; 1519 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1520 StringRef Value(A->getValue()); 1521 if (Value == "always") 1522 ShowColors = Colors_On; 1523 else if (Value == "never") 1524 ShowColors = Colors_Off; 1525 else if (Value == "auto") 1526 ShowColors = Colors_Auto; 1527 } 1528 } 1529 return ShowColors == Colors_On || 1530 (ShowColors == Colors_Auto && 1531 llvm::sys::Process::StandardErrHasColors()); 1532 } 1533 1534 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1535 DiagnosticsEngine *Diags) { 1536 bool Success = true; 1537 for (const auto &Prefix : VerifyPrefixes) { 1538 // Every prefix must start with a letter and contain only alphanumeric 1539 // characters, hyphens, and underscores. 1540 auto BadChar = llvm::find_if(Prefix, [](char C) { 1541 return !isAlphanumeric(C) && C != '-' && C != '_'; 1542 }); 1543 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1544 Success = false; 1545 if (Diags) { 1546 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1547 Diags->Report(diag::note_drv_verify_prefix_spelling); 1548 } 1549 } 1550 } 1551 return Success; 1552 } 1553 1554 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1555 DiagnosticsEngine *Diags, 1556 bool DefaultDiagColor, bool DefaultShowOpt) { 1557 bool Success = true; 1558 1559 Opts.DiagnosticLogFile = 1560 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1561 if (Arg *A = 1562 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1563 Opts.DiagnosticSerializationFile = A->getValue(); 1564 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1565 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1566 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1567 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1568 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1569 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1570 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1571 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1572 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1573 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1574 Opts.ShowOptionNames = 1575 Args.hasFlag(OPT_fdiagnostics_show_option, 1576 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1577 1578 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1579 1580 // Default behavior is to not to show note include stacks. 1581 Opts.ShowNoteIncludeStack = false; 1582 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1583 OPT_fno_diagnostics_show_note_include_stack)) 1584 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1585 Opts.ShowNoteIncludeStack = true; 1586 1587 StringRef ShowOverloads = 1588 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1589 if (ShowOverloads == "best") 1590 Opts.setShowOverloads(Ovl_Best); 1591 else if (ShowOverloads == "all") 1592 Opts.setShowOverloads(Ovl_All); 1593 else { 1594 Success = false; 1595 if (Diags) 1596 Diags->Report(diag::err_drv_invalid_value) 1597 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1598 << ShowOverloads; 1599 } 1600 1601 StringRef ShowCategory = 1602 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1603 if (ShowCategory == "none") 1604 Opts.ShowCategories = 0; 1605 else if (ShowCategory == "id") 1606 Opts.ShowCategories = 1; 1607 else if (ShowCategory == "name") 1608 Opts.ShowCategories = 2; 1609 else { 1610 Success = false; 1611 if (Diags) 1612 Diags->Report(diag::err_drv_invalid_value) 1613 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1614 << ShowCategory; 1615 } 1616 1617 StringRef Format = 1618 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1619 if (Format == "clang") 1620 Opts.setFormat(DiagnosticOptions::Clang); 1621 else if (Format == "msvc") 1622 Opts.setFormat(DiagnosticOptions::MSVC); 1623 else if (Format == "msvc-fallback") { 1624 Opts.setFormat(DiagnosticOptions::MSVC); 1625 Opts.CLFallbackMode = true; 1626 } else if (Format == "vi") 1627 Opts.setFormat(DiagnosticOptions::Vi); 1628 else { 1629 Success = false; 1630 if (Diags) 1631 Diags->Report(diag::err_drv_invalid_value) 1632 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1633 << Format; 1634 } 1635 1636 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1637 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1638 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1639 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1640 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1641 if (Args.hasArg(OPT_verify)) 1642 Opts.VerifyPrefixes.push_back("expected"); 1643 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1644 // then sort it to prepare for fast lookup using std::binary_search. 1645 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1646 Opts.VerifyDiagnostics = false; 1647 Success = false; 1648 } 1649 else 1650 llvm::sort(Opts.VerifyPrefixes); 1651 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1652 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1653 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1654 Diags, DiagMask); 1655 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1656 DiagMask = DiagnosticLevelMask::All; 1657 Opts.setVerifyIgnoreUnexpected(DiagMask); 1658 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1659 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1660 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1661 Opts.MacroBacktraceLimit = 1662 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1663 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1664 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1665 Args, OPT_ftemplate_backtrace_limit, 1666 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1667 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1668 Args, OPT_fconstexpr_backtrace_limit, 1669 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1670 Opts.SpellCheckingLimit = getLastArgIntValue( 1671 Args, OPT_fspell_checking_limit, 1672 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1673 Opts.SnippetLineLimit = getLastArgIntValue( 1674 Args, OPT_fcaret_diagnostics_max_lines, 1675 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1676 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1677 DiagnosticOptions::DefaultTabStop, Diags); 1678 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1679 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1680 if (Diags) 1681 Diags->Report(diag::warn_ignoring_ftabstop_value) 1682 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1683 } 1684 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1685 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1686 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1687 1688 return Success; 1689 } 1690 1691 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1692 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1693 } 1694 1695 /// Parse the argument to the -ftest-module-file-extension 1696 /// command-line argument. 1697 /// 1698 /// \returns true on error, false on success. 1699 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1700 std::string &BlockName, 1701 unsigned &MajorVersion, 1702 unsigned &MinorVersion, 1703 bool &Hashed, 1704 std::string &UserInfo) { 1705 SmallVector<StringRef, 5> Args; 1706 Arg.split(Args, ':', 5); 1707 if (Args.size() < 5) 1708 return true; 1709 1710 BlockName = std::string(Args[0]); 1711 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1712 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1713 if (Args[3].getAsInteger(2, Hashed)) return true; 1714 if (Args.size() > 4) 1715 UserInfo = std::string(Args[4]); 1716 return false; 1717 } 1718 1719 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1720 DiagnosticsEngine &Diags, 1721 bool &IsHeaderFile) { 1722 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1723 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1724 switch (A->getOption().getID()) { 1725 default: 1726 llvm_unreachable("Invalid option in group!"); 1727 case OPT_ast_list: 1728 Opts.ProgramAction = frontend::ASTDeclList; break; 1729 case OPT_ast_dump_all_EQ: 1730 case OPT_ast_dump_EQ: { 1731 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1732 .CaseLower("default", ADOF_Default) 1733 .CaseLower("json", ADOF_JSON) 1734 .Default(std::numeric_limits<unsigned>::max()); 1735 1736 if (Val != std::numeric_limits<unsigned>::max()) 1737 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1738 else { 1739 Diags.Report(diag::err_drv_invalid_value) 1740 << A->getAsString(Args) << A->getValue(); 1741 Opts.ASTDumpFormat = ADOF_Default; 1742 } 1743 LLVM_FALLTHROUGH; 1744 } 1745 case OPT_ast_dump: 1746 case OPT_ast_dump_all: 1747 case OPT_ast_dump_lookups: 1748 Opts.ProgramAction = frontend::ASTDump; break; 1749 case OPT_ast_print: 1750 Opts.ProgramAction = frontend::ASTPrint; break; 1751 case OPT_ast_view: 1752 Opts.ProgramAction = frontend::ASTView; break; 1753 case OPT_compiler_options_dump: 1754 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1755 case OPT_dump_raw_tokens: 1756 Opts.ProgramAction = frontend::DumpRawTokens; break; 1757 case OPT_dump_tokens: 1758 Opts.ProgramAction = frontend::DumpTokens; break; 1759 case OPT_S: 1760 Opts.ProgramAction = frontend::EmitAssembly; break; 1761 case OPT_emit_llvm_bc: 1762 Opts.ProgramAction = frontend::EmitBC; break; 1763 case OPT_emit_html: 1764 Opts.ProgramAction = frontend::EmitHTML; break; 1765 case OPT_emit_llvm: 1766 Opts.ProgramAction = frontend::EmitLLVM; break; 1767 case OPT_emit_llvm_only: 1768 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1769 case OPT_emit_codegen_only: 1770 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1771 case OPT_emit_obj: 1772 Opts.ProgramAction = frontend::EmitObj; break; 1773 case OPT_fixit_EQ: 1774 Opts.FixItSuffix = A->getValue(); 1775 LLVM_FALLTHROUGH; 1776 case OPT_fixit: 1777 Opts.ProgramAction = frontend::FixIt; break; 1778 case OPT_emit_module: 1779 Opts.ProgramAction = frontend::GenerateModule; break; 1780 case OPT_emit_module_interface: 1781 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1782 case OPT_emit_header_module: 1783 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1784 case OPT_emit_pch: 1785 Opts.ProgramAction = frontend::GeneratePCH; break; 1786 case OPT_emit_interface_stubs: { 1787 StringRef ArgStr = 1788 Args.hasArg(OPT_interface_stub_version_EQ) 1789 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1790 : "experimental-ifs-v1"; 1791 if (ArgStr == "experimental-yaml-elf-v1" || 1792 ArgStr == "experimental-tapi-elf-v1") { 1793 std::string ErrorMessage = 1794 "Invalid interface stub format: " + ArgStr.str() + 1795 " is deprecated."; 1796 Diags.Report(diag::err_drv_invalid_value) 1797 << "Must specify a valid interface stub format type, ie: " 1798 "-interface-stub-version=experimental-ifs-v1" 1799 << ErrorMessage; 1800 } else if (ArgStr != "experimental-ifs-v1") { 1801 std::string ErrorMessage = 1802 "Invalid interface stub format: " + ArgStr.str() + "."; 1803 Diags.Report(diag::err_drv_invalid_value) 1804 << "Must specify a valid interface stub format type, ie: " 1805 "-interface-stub-version=experimental-ifs-v1" 1806 << ErrorMessage; 1807 } else { 1808 Opts.ProgramAction = frontend::GenerateInterfaceIfsExpV1; 1809 } 1810 break; 1811 } 1812 case OPT_init_only: 1813 Opts.ProgramAction = frontend::InitOnly; break; 1814 case OPT_fsyntax_only: 1815 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1816 case OPT_module_file_info: 1817 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1818 case OPT_verify_pch: 1819 Opts.ProgramAction = frontend::VerifyPCH; break; 1820 case OPT_print_preamble: 1821 Opts.ProgramAction = frontend::PrintPreamble; break; 1822 case OPT_E: 1823 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1824 case OPT_templight_dump: 1825 Opts.ProgramAction = frontend::TemplightDump; break; 1826 case OPT_rewrite_macros: 1827 Opts.ProgramAction = frontend::RewriteMacros; break; 1828 case OPT_rewrite_objc: 1829 Opts.ProgramAction = frontend::RewriteObjC; break; 1830 case OPT_rewrite_test: 1831 Opts.ProgramAction = frontend::RewriteTest; break; 1832 case OPT_analyze: 1833 Opts.ProgramAction = frontend::RunAnalysis; break; 1834 case OPT_migrate: 1835 Opts.ProgramAction = frontend::MigrateSource; break; 1836 case OPT_Eonly: 1837 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1838 case OPT_print_dependency_directives_minimized_source: 1839 Opts.ProgramAction = 1840 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1841 break; 1842 } 1843 } 1844 1845 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1846 Opts.Plugins.emplace_back(A->getValue(0)); 1847 Opts.ProgramAction = frontend::PluginAction; 1848 Opts.ActionName = A->getValue(); 1849 } 1850 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1851 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1852 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1853 1854 for (const std::string &Arg : 1855 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1856 std::string BlockName; 1857 unsigned MajorVersion; 1858 unsigned MinorVersion; 1859 bool Hashed; 1860 std::string UserInfo; 1861 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1862 MinorVersion, Hashed, UserInfo)) { 1863 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1864 1865 continue; 1866 } 1867 1868 // Add the testing module file extension. 1869 Opts.ModuleFileExtensions.push_back( 1870 std::make_shared<TestModuleFileExtension>( 1871 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1872 } 1873 1874 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1875 Opts.CodeCompletionAt = 1876 ParsedSourceLocation::FromString(A->getValue()); 1877 if (Opts.CodeCompletionAt.FileName.empty()) 1878 Diags.Report(diag::err_drv_invalid_value) 1879 << A->getAsString(Args) << A->getValue(); 1880 } 1881 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1882 1883 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1884 Opts.Plugins = Args.getAllArgValues(OPT_load); 1885 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1886 Opts.ShowHelp = Args.hasArg(OPT_help); 1887 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1888 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1889 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1890 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1891 Opts.TimeTraceGranularity = getLastArgIntValue( 1892 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1893 Opts.ShowVersion = Args.hasArg(OPT_version); 1894 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1895 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1896 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1897 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1898 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1899 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1900 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1901 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1902 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1903 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1904 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1905 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1906 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1907 // Only the -fmodule-file=<file> form. 1908 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1909 StringRef Val = A->getValue(); 1910 if (Val.find('=') == StringRef::npos) 1911 Opts.ModuleFiles.push_back(std::string(Val)); 1912 } 1913 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1914 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1915 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1916 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1917 1918 Opts.CodeCompleteOpts.IncludeMacros 1919 = Args.hasArg(OPT_code_completion_macros); 1920 Opts.CodeCompleteOpts.IncludeCodePatterns 1921 = Args.hasArg(OPT_code_completion_patterns); 1922 Opts.CodeCompleteOpts.IncludeGlobals 1923 = !Args.hasArg(OPT_no_code_completion_globals); 1924 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1925 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1926 Opts.CodeCompleteOpts.IncludeBriefComments 1927 = Args.hasArg(OPT_code_completion_brief_comments); 1928 Opts.CodeCompleteOpts.IncludeFixIts 1929 = Args.hasArg(OPT_code_completion_with_fixits); 1930 1931 Opts.OverrideRecordLayoutsFile = 1932 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1933 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1934 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1935 1936 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1937 OPT_arcmt_modify, 1938 OPT_arcmt_migrate)) { 1939 switch (A->getOption().getID()) { 1940 default: 1941 llvm_unreachable("missed a case"); 1942 case OPT_arcmt_check: 1943 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1944 break; 1945 case OPT_arcmt_modify: 1946 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1947 break; 1948 case OPT_arcmt_migrate: 1949 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1950 break; 1951 } 1952 } 1953 Opts.MTMigrateDir = 1954 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1955 Opts.ARCMTMigrateReportOut = 1956 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1957 Opts.ARCMTMigrateEmitARCErrors 1958 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1959 1960 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1961 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1962 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1963 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1964 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1965 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1966 if (Args.hasArg(OPT_objcmt_migrate_property)) 1967 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1968 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1969 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1970 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1971 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1972 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1973 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1974 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1975 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1976 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1977 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1978 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1979 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1980 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1981 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1982 if (Args.hasArg(OPT_objcmt_atomic_property)) 1983 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1984 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1985 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1986 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1987 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1988 if (Args.hasArg(OPT_objcmt_migrate_all)) 1989 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1990 1991 Opts.ObjCMTWhiteListPath = 1992 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 1993 1994 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1995 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1996 Diags.Report(diag::err_drv_argument_not_allowed_with) 1997 << "ARC migration" << "ObjC migration"; 1998 } 1999 2000 InputKind DashX(Language::Unknown); 2001 if (const Arg *A = Args.getLastArg(OPT_x)) { 2002 StringRef XValue = A->getValue(); 2003 2004 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2005 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2006 bool Preprocessed = XValue.consume_back("-cpp-output"); 2007 bool ModuleMap = XValue.consume_back("-module-map"); 2008 IsHeaderFile = 2009 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 2010 2011 // Principal languages. 2012 DashX = llvm::StringSwitch<InputKind>(XValue) 2013 .Case("c", Language::C) 2014 .Case("cl", Language::OpenCL) 2015 .Case("cuda", Language::CUDA) 2016 .Case("hip", Language::HIP) 2017 .Case("c++", Language::CXX) 2018 .Case("objective-c", Language::ObjC) 2019 .Case("objective-c++", Language::ObjCXX) 2020 .Case("renderscript", Language::RenderScript) 2021 .Default(Language::Unknown); 2022 2023 // "objc[++]-cpp-output" is an acceptable synonym for 2024 // "objective-c[++]-cpp-output". 2025 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2026 DashX = llvm::StringSwitch<InputKind>(XValue) 2027 .Case("objc", Language::ObjC) 2028 .Case("objc++", Language::ObjCXX) 2029 .Default(Language::Unknown); 2030 2031 // Some special cases cannot be combined with suffixes. 2032 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2033 DashX = llvm::StringSwitch<InputKind>(XValue) 2034 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2035 .Case("assembler-with-cpp", Language::Asm) 2036 .Cases("ast", "pcm", 2037 InputKind(Language::Unknown, InputKind::Precompiled)) 2038 .Case("ir", Language::LLVM_IR) 2039 .Default(Language::Unknown); 2040 2041 if (DashX.isUnknown()) 2042 Diags.Report(diag::err_drv_invalid_value) 2043 << A->getAsString(Args) << A->getValue(); 2044 2045 if (Preprocessed) 2046 DashX = DashX.getPreprocessed(); 2047 if (ModuleMap) 2048 DashX = DashX.withFormat(InputKind::ModuleMap); 2049 } 2050 2051 // '-' is the default input if none is given. 2052 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2053 Opts.Inputs.clear(); 2054 if (Inputs.empty()) 2055 Inputs.push_back("-"); 2056 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2057 InputKind IK = DashX; 2058 if (IK.isUnknown()) { 2059 IK = FrontendOptions::getInputKindForExtension( 2060 StringRef(Inputs[i]).rsplit('.').second); 2061 // FIXME: Warn on this? 2062 if (IK.isUnknown()) 2063 IK = Language::C; 2064 // FIXME: Remove this hack. 2065 if (i == 0) 2066 DashX = IK; 2067 } 2068 2069 // The -emit-module action implicitly takes a module map. 2070 if (Opts.ProgramAction == frontend::GenerateModule && 2071 IK.getFormat() == InputKind::Source) 2072 IK = IK.withFormat(InputKind::ModuleMap); 2073 2074 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 2075 } 2076 2077 return DashX; 2078 } 2079 2080 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2081 void *MainAddr) { 2082 std::string ClangExecutable = 2083 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2084 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2085 } 2086 2087 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2088 const std::string &WorkingDir) { 2089 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2090 Opts.Verbose = Args.hasArg(OPT_v); 2091 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2092 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2093 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2094 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2095 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2096 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2097 2098 // Canonicalize -fmodules-cache-path before storing it. 2099 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2100 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2101 if (WorkingDir.empty()) 2102 llvm::sys::fs::make_absolute(P); 2103 else 2104 llvm::sys::fs::make_absolute(WorkingDir, P); 2105 } 2106 llvm::sys::path::remove_dots(P); 2107 Opts.ModuleCachePath = std::string(P.str()); 2108 2109 Opts.ModuleUserBuildPath = 2110 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2111 // Only the -fmodule-file=<name>=<file> form. 2112 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2113 StringRef Val = A->getValue(); 2114 if (Val.find('=') != StringRef::npos){ 2115 auto Split = Val.split('='); 2116 Opts.PrebuiltModuleFiles.insert( 2117 {std::string(Split.first), std::string(Split.second)}); 2118 } 2119 } 2120 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2121 Opts.AddPrebuiltModulePath(A->getValue()); 2122 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2123 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2124 Opts.ModulesStrictContextHash = Args.hasArg(OPT_fmodules_strict_context_hash); 2125 Opts.ModulesValidateDiagnosticOptions = 2126 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2127 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2128 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2129 Opts.ModuleCachePruneInterval = 2130 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2131 Opts.ModuleCachePruneAfter = 2132 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2133 Opts.ModulesValidateOncePerBuildSession = 2134 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2135 Opts.BuildSessionTimestamp = 2136 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2137 Opts.ModulesValidateSystemHeaders = 2138 Args.hasArg(OPT_fmodules_validate_system_headers); 2139 Opts.ValidateASTInputFilesContent = 2140 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2141 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2142 Opts.ModuleFormat = A->getValue(); 2143 2144 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2145 StringRef MacroDef = A->getValue(); 2146 Opts.ModulesIgnoreMacros.insert( 2147 llvm::CachedHashString(MacroDef.split('=').first)); 2148 } 2149 2150 // Add -I..., -F..., and -index-header-map options in order. 2151 bool IsIndexHeaderMap = false; 2152 bool IsSysrootSpecified = 2153 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2154 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2155 if (A->getOption().matches(OPT_index_header_map)) { 2156 // -index-header-map applies to the next -I or -F. 2157 IsIndexHeaderMap = true; 2158 continue; 2159 } 2160 2161 frontend::IncludeDirGroup Group = 2162 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2163 2164 bool IsFramework = A->getOption().matches(OPT_F); 2165 std::string Path = A->getValue(); 2166 2167 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2168 SmallString<32> Buffer; 2169 llvm::sys::path::append(Buffer, Opts.Sysroot, 2170 llvm::StringRef(A->getValue()).substr(1)); 2171 Path = std::string(Buffer.str()); 2172 } 2173 2174 Opts.AddPath(Path, Group, IsFramework, 2175 /*IgnoreSysroot*/ true); 2176 IsIndexHeaderMap = false; 2177 } 2178 2179 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2180 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2181 for (const auto *A : 2182 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2183 if (A->getOption().matches(OPT_iprefix)) 2184 Prefix = A->getValue(); 2185 else if (A->getOption().matches(OPT_iwithprefix)) 2186 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2187 else 2188 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2189 } 2190 2191 for (const auto *A : Args.filtered(OPT_idirafter)) 2192 Opts.AddPath(A->getValue(), frontend::After, false, true); 2193 for (const auto *A : Args.filtered(OPT_iquote)) 2194 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2195 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2196 Opts.AddPath(A->getValue(), frontend::System, false, 2197 !A->getOption().matches(OPT_iwithsysroot)); 2198 for (const auto *A : Args.filtered(OPT_iframework)) 2199 Opts.AddPath(A->getValue(), frontend::System, true, true); 2200 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2201 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2202 /*IgnoreSysRoot=*/false); 2203 2204 // Add the paths for the various language specific isystem flags. 2205 for (const auto *A : Args.filtered(OPT_c_isystem)) 2206 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2207 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2208 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2209 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2210 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2211 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2212 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2213 2214 // Add the internal paths from a driver that detects standard include paths. 2215 for (const auto *A : 2216 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2217 frontend::IncludeDirGroup Group = frontend::System; 2218 if (A->getOption().matches(OPT_internal_externc_isystem)) 2219 Group = frontend::ExternCSystem; 2220 Opts.AddPath(A->getValue(), Group, false, true); 2221 } 2222 2223 // Add the path prefixes which are implicitly treated as being system headers. 2224 for (const auto *A : 2225 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2226 Opts.AddSystemHeaderPrefix( 2227 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2228 2229 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2230 Opts.AddVFSOverlayFile(A->getValue()); 2231 } 2232 2233 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2234 const llvm::Triple &T, 2235 PreprocessorOptions &PPOpts, 2236 LangStandard::Kind LangStd) { 2237 // Set some properties which depend solely on the input kind; it would be nice 2238 // to move these to the language standard, and have the driver resolve the 2239 // input kind + language standard. 2240 // 2241 // FIXME: Perhaps a better model would be for a single source file to have 2242 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2243 // simultaneously active? 2244 if (IK.getLanguage() == Language::Asm) { 2245 Opts.AsmPreprocessor = 1; 2246 } else if (IK.isObjectiveC()) { 2247 Opts.ObjC = 1; 2248 } 2249 2250 if (LangStd == LangStandard::lang_unspecified) { 2251 // Based on the base language, pick one. 2252 switch (IK.getLanguage()) { 2253 case Language::Unknown: 2254 case Language::LLVM_IR: 2255 llvm_unreachable("Invalid input kind!"); 2256 case Language::OpenCL: 2257 LangStd = LangStandard::lang_opencl10; 2258 break; 2259 case Language::CUDA: 2260 LangStd = LangStandard::lang_cuda; 2261 break; 2262 case Language::Asm: 2263 case Language::C: 2264 #if defined(CLANG_DEFAULT_STD_C) 2265 LangStd = CLANG_DEFAULT_STD_C; 2266 #else 2267 // The PS4 uses C99 as the default C standard. 2268 if (T.isPS4()) 2269 LangStd = LangStandard::lang_gnu99; 2270 else 2271 LangStd = LangStandard::lang_gnu11; 2272 #endif 2273 break; 2274 case Language::ObjC: 2275 #if defined(CLANG_DEFAULT_STD_C) 2276 LangStd = CLANG_DEFAULT_STD_C; 2277 #else 2278 LangStd = LangStandard::lang_gnu11; 2279 #endif 2280 break; 2281 case Language::CXX: 2282 case Language::ObjCXX: 2283 #if defined(CLANG_DEFAULT_STD_CXX) 2284 LangStd = CLANG_DEFAULT_STD_CXX; 2285 #else 2286 LangStd = LangStandard::lang_gnucxx14; 2287 #endif 2288 break; 2289 case Language::RenderScript: 2290 LangStd = LangStandard::lang_c99; 2291 break; 2292 case Language::HIP: 2293 LangStd = LangStandard::lang_hip; 2294 break; 2295 } 2296 } 2297 2298 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2299 Opts.LineComment = Std.hasLineComments(); 2300 Opts.C99 = Std.isC99(); 2301 Opts.C11 = Std.isC11(); 2302 Opts.C17 = Std.isC17(); 2303 Opts.C2x = Std.isC2x(); 2304 Opts.CPlusPlus = Std.isCPlusPlus(); 2305 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2306 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2307 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2308 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2309 Opts.Digraphs = Std.hasDigraphs(); 2310 Opts.GNUMode = Std.isGNUMode(); 2311 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2312 Opts.GNUCVersion = 0; 2313 Opts.HexFloats = Std.hasHexFloats(); 2314 Opts.ImplicitInt = Std.hasImplicitInt(); 2315 2316 // Set OpenCL Version. 2317 Opts.OpenCL = Std.isOpenCL(); 2318 if (LangStd == LangStandard::lang_opencl10) 2319 Opts.OpenCLVersion = 100; 2320 else if (LangStd == LangStandard::lang_opencl11) 2321 Opts.OpenCLVersion = 110; 2322 else if (LangStd == LangStandard::lang_opencl12) 2323 Opts.OpenCLVersion = 120; 2324 else if (LangStd == LangStandard::lang_opencl20) 2325 Opts.OpenCLVersion = 200; 2326 else if (LangStd == LangStandard::lang_openclcpp) 2327 Opts.OpenCLCPlusPlusVersion = 100; 2328 2329 // OpenCL has some additional defaults. 2330 if (Opts.OpenCL) { 2331 Opts.AltiVec = 0; 2332 Opts.ZVector = 0; 2333 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2334 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2335 Opts.NativeHalfType = 1; 2336 Opts.NativeHalfArgsAndReturns = 1; 2337 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2338 2339 // Include default header file for OpenCL. 2340 if (Opts.IncludeDefaultHeader) { 2341 if (Opts.DeclareOpenCLBuiltins) { 2342 // Only include base header file for builtin types and constants. 2343 PPOpts.Includes.push_back("opencl-c-base.h"); 2344 } else { 2345 PPOpts.Includes.push_back("opencl-c.h"); 2346 } 2347 } 2348 } 2349 2350 Opts.HIP = IK.getLanguage() == Language::HIP; 2351 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2352 if (Opts.CUDA) 2353 // Set default FP_CONTRACT to FAST. 2354 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2355 2356 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2357 if (Opts.RenderScript) { 2358 Opts.NativeHalfType = 1; 2359 Opts.NativeHalfArgsAndReturns = 1; 2360 } 2361 2362 // OpenCL and C++ both have bool, true, false keywords. 2363 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2364 2365 // OpenCL has half keyword 2366 Opts.Half = Opts.OpenCL; 2367 2368 // C++ has wchar_t keyword. 2369 Opts.WChar = Opts.CPlusPlus; 2370 2371 Opts.GNUKeywords = Opts.GNUMode; 2372 Opts.CXXOperatorNames = Opts.CPlusPlus; 2373 2374 Opts.AlignedAllocation = Opts.CPlusPlus17; 2375 2376 Opts.DollarIdents = !Opts.AsmPreprocessor; 2377 2378 // Enable [[]] attributes in C++11 and C2x by default. 2379 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2380 } 2381 2382 /// Attempt to parse a visibility value out of the given argument. 2383 static Visibility parseVisibility(Arg *arg, ArgList &args, 2384 DiagnosticsEngine &diags) { 2385 StringRef value = arg->getValue(); 2386 if (value == "default") { 2387 return DefaultVisibility; 2388 } else if (value == "hidden" || value == "internal") { 2389 return HiddenVisibility; 2390 } else if (value == "protected") { 2391 // FIXME: diagnose if target does not support protected visibility 2392 return ProtectedVisibility; 2393 } 2394 2395 diags.Report(diag::err_drv_invalid_value) 2396 << arg->getAsString(args) << value; 2397 return DefaultVisibility; 2398 } 2399 2400 /// Check if input file kind and language standard are compatible. 2401 static bool IsInputCompatibleWithStandard(InputKind IK, 2402 const LangStandard &S) { 2403 switch (IK.getLanguage()) { 2404 case Language::Unknown: 2405 case Language::LLVM_IR: 2406 llvm_unreachable("should not parse language flags for this input"); 2407 2408 case Language::C: 2409 case Language::ObjC: 2410 case Language::RenderScript: 2411 return S.getLanguage() == Language::C; 2412 2413 case Language::OpenCL: 2414 return S.getLanguage() == Language::OpenCL; 2415 2416 case Language::CXX: 2417 case Language::ObjCXX: 2418 return S.getLanguage() == Language::CXX; 2419 2420 case Language::CUDA: 2421 // FIXME: What -std= values should be permitted for CUDA compilations? 2422 return S.getLanguage() == Language::CUDA || 2423 S.getLanguage() == Language::CXX; 2424 2425 case Language::HIP: 2426 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2427 2428 case Language::Asm: 2429 // Accept (and ignore) all -std= values. 2430 // FIXME: The -std= value is not ignored; it affects the tokenization 2431 // and preprocessing rules if we're preprocessing this asm input. 2432 return true; 2433 } 2434 2435 llvm_unreachable("unexpected input language"); 2436 } 2437 2438 /// Get language name for given input kind. 2439 static const StringRef GetInputKindName(InputKind IK) { 2440 switch (IK.getLanguage()) { 2441 case Language::C: 2442 return "C"; 2443 case Language::ObjC: 2444 return "Objective-C"; 2445 case Language::CXX: 2446 return "C++"; 2447 case Language::ObjCXX: 2448 return "Objective-C++"; 2449 case Language::OpenCL: 2450 return "OpenCL"; 2451 case Language::CUDA: 2452 return "CUDA"; 2453 case Language::RenderScript: 2454 return "RenderScript"; 2455 case Language::HIP: 2456 return "HIP"; 2457 2458 case Language::Asm: 2459 return "Asm"; 2460 case Language::LLVM_IR: 2461 return "LLVM IR"; 2462 2463 case Language::Unknown: 2464 break; 2465 } 2466 llvm_unreachable("unknown input language"); 2467 } 2468 2469 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2470 const TargetOptions &TargetOpts, 2471 PreprocessorOptions &PPOpts, 2472 DiagnosticsEngine &Diags) { 2473 // FIXME: Cleanup per-file based stuff. 2474 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2475 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2476 LangStd = LangStandard::getLangKind(A->getValue()); 2477 if (LangStd == LangStandard::lang_unspecified) { 2478 Diags.Report(diag::err_drv_invalid_value) 2479 << A->getAsString(Args) << A->getValue(); 2480 // Report supported standards with short description. 2481 for (unsigned KindValue = 0; 2482 KindValue != LangStandard::lang_unspecified; 2483 ++KindValue) { 2484 const LangStandard &Std = LangStandard::getLangStandardForKind( 2485 static_cast<LangStandard::Kind>(KindValue)); 2486 if (IsInputCompatibleWithStandard(IK, Std)) { 2487 auto Diag = Diags.Report(diag::note_drv_use_standard); 2488 Diag << Std.getName() << Std.getDescription(); 2489 unsigned NumAliases = 0; 2490 #define LANGSTANDARD(id, name, lang, desc, features) 2491 #define LANGSTANDARD_ALIAS(id, alias) \ 2492 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2493 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2494 #include "clang/Basic/LangStandards.def" 2495 Diag << NumAliases; 2496 #define LANGSTANDARD(id, name, lang, desc, features) 2497 #define LANGSTANDARD_ALIAS(id, alias) \ 2498 if (KindValue == LangStandard::lang_##id) Diag << alias; 2499 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2500 #include "clang/Basic/LangStandards.def" 2501 } 2502 } 2503 } else { 2504 // Valid standard, check to make sure language and standard are 2505 // compatible. 2506 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2507 if (!IsInputCompatibleWithStandard(IK, Std)) { 2508 Diags.Report(diag::err_drv_argument_not_allowed_with) 2509 << A->getAsString(Args) << GetInputKindName(IK); 2510 } 2511 } 2512 } 2513 2514 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2515 Opts.DllExportInlines = false; 2516 2517 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2518 StringRef Name = A->getValue(); 2519 if (Name == "full" || Name == "branch") { 2520 Opts.CFProtectionBranch = 1; 2521 } 2522 } 2523 // -cl-std only applies for OpenCL language standards. 2524 // Override the -std option in this case. 2525 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2526 LangStandard::Kind OpenCLLangStd 2527 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2528 .Cases("cl", "CL", LangStandard::lang_opencl10) 2529 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2530 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2531 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2532 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2533 .Default(LangStandard::lang_unspecified); 2534 2535 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2536 Diags.Report(diag::err_drv_invalid_value) 2537 << A->getAsString(Args) << A->getValue(); 2538 } 2539 else 2540 LangStd = OpenCLLangStd; 2541 } 2542 2543 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2544 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2545 2546 llvm::Triple T(TargetOpts.Triple); 2547 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2548 2549 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2550 // This option should be deprecated for CL > 1.0 because 2551 // this option was added for compatibility with OpenCL 1.0. 2552 if (Args.getLastArg(OPT_cl_strict_aliasing) 2553 && Opts.OpenCLVersion > 100) { 2554 Diags.Report(diag::warn_option_invalid_ocl_version) 2555 << Opts.getOpenCLVersionTuple().getAsString() 2556 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2557 } 2558 2559 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2560 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2561 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2562 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2563 // name, as it doesn't seem a useful distinction. 2564 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2565 Opts.GNUKeywords); 2566 2567 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2568 2569 if (Args.hasArg(OPT_fno_operator_names)) 2570 Opts.CXXOperatorNames = 0; 2571 2572 if (Args.hasArg(OPT_fcuda_is_device)) 2573 Opts.CUDAIsDevice = 1; 2574 2575 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2576 Opts.CUDAAllowVariadicFunctions = 1; 2577 2578 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2579 Opts.CUDAHostDeviceConstexpr = 0; 2580 2581 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2582 Opts.CUDADeviceApproxTranscendentals = 1; 2583 2584 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2585 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2586 if (Opts.HIP) 2587 Opts.GPUAllowDeviceInit = 1; 2588 else 2589 Diags.Report(diag::warn_ignored_hip_only_option) 2590 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2591 } 2592 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2593 if (Opts.HIP) 2594 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2595 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2596 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2597 Diags.Report(diag::warn_ignored_hip_only_option) 2598 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2599 2600 if (Opts.ObjC) { 2601 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2602 StringRef value = arg->getValue(); 2603 if (Opts.ObjCRuntime.tryParse(value)) 2604 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2605 } 2606 2607 if (Args.hasArg(OPT_fobjc_gc_only)) 2608 Opts.setGC(LangOptions::GCOnly); 2609 else if (Args.hasArg(OPT_fobjc_gc)) 2610 Opts.setGC(LangOptions::HybridGC); 2611 else if (Args.hasArg(OPT_fobjc_arc)) { 2612 Opts.ObjCAutoRefCount = 1; 2613 if (!Opts.ObjCRuntime.allowsARC()) 2614 Diags.Report(diag::err_arc_unsupported_on_runtime); 2615 } 2616 2617 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2618 // whether the feature is actually enabled. This is predominantly 2619 // determined by -fobjc-runtime, but we allow it to be overridden 2620 // from the command line for testing purposes. 2621 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2622 Opts.ObjCWeakRuntime = 1; 2623 else 2624 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2625 2626 // ObjCWeak determines whether __weak is actually enabled. 2627 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2628 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2629 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2630 assert(!Opts.ObjCWeak); 2631 } else if (Opts.getGC() != LangOptions::NonGC) { 2632 Diags.Report(diag::err_objc_weak_with_gc); 2633 } else if (!Opts.ObjCWeakRuntime) { 2634 Diags.Report(diag::err_objc_weak_unsupported); 2635 } else { 2636 Opts.ObjCWeak = 1; 2637 } 2638 } else if (Opts.ObjCAutoRefCount) { 2639 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2640 } 2641 2642 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2643 Opts.ObjCInferRelatedResultType = 0; 2644 2645 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2646 Opts.ObjCSubscriptingLegacyRuntime = 2647 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2648 } 2649 2650 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2651 // Check that the version has 1 to 3 components and the minor and patch 2652 // versions fit in two decimal digits. 2653 VersionTuple GNUCVer; 2654 bool Invalid = GNUCVer.tryParse(A->getValue()); 2655 unsigned Major = GNUCVer.getMajor(); 2656 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2657 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2658 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2659 Diags.Report(diag::err_drv_invalid_value) 2660 << A->getAsString(Args) << A->getValue(); 2661 } 2662 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2663 } 2664 2665 if (Args.hasArg(OPT_fgnu89_inline)) { 2666 if (Opts.CPlusPlus) 2667 Diags.Report(diag::err_drv_argument_not_allowed_with) 2668 << "-fgnu89-inline" << GetInputKindName(IK); 2669 else 2670 Opts.GNUInline = 1; 2671 } 2672 2673 if (Args.hasArg(OPT_fapple_kext)) { 2674 if (!Opts.CPlusPlus) 2675 Diags.Report(diag::warn_c_kext); 2676 else 2677 Opts.AppleKext = 1; 2678 } 2679 2680 if (Args.hasArg(OPT_print_ivar_layout)) 2681 Opts.ObjCGCBitmapPrint = 1; 2682 2683 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2684 Opts.NoConstantCFStrings = 1; 2685 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2686 Opts.CFRuntime = 2687 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2688 .Cases("unspecified", "standalone", "objc", 2689 LangOptions::CoreFoundationABI::ObjectiveC) 2690 .Cases("swift", "swift-5.0", 2691 LangOptions::CoreFoundationABI::Swift5_0) 2692 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2693 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2694 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2695 2696 if (Args.hasArg(OPT_fzvector)) 2697 Opts.ZVector = 1; 2698 2699 if (Args.hasArg(OPT_pthread)) 2700 Opts.POSIXThreads = 1; 2701 2702 // The value-visibility mode defaults to "default". 2703 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2704 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2705 } else { 2706 Opts.setValueVisibilityMode(DefaultVisibility); 2707 } 2708 2709 // The type-visibility mode defaults to the value-visibility mode. 2710 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2711 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2712 } else { 2713 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2714 } 2715 2716 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2717 Opts.InlineVisibilityHidden = 1; 2718 2719 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2720 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2721 2722 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2723 Opts.SetVisibilityForExternDecls = 1; 2724 2725 if (Args.hasArg(OPT_ftrapv)) { 2726 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2727 // Set the handler, if one is specified. 2728 Opts.OverflowHandler = 2729 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2730 } 2731 else if (Args.hasArg(OPT_fwrapv)) 2732 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2733 2734 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2735 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2736 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2737 Opts.MSCompatibilityVersion = 0; 2738 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2739 VersionTuple VT; 2740 if (VT.tryParse(A->getValue())) 2741 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2742 << A->getValue(); 2743 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2744 VT.getMinor().getValueOr(0) * 100000 + 2745 VT.getSubminor().getValueOr(0); 2746 } 2747 2748 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2749 // is specified, or -std is set to a conforming mode. 2750 // Trigraphs are disabled by default in c++1z onwards. 2751 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2752 Opts.Trigraphs = 2753 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2754 2755 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2756 OPT_fno_dollars_in_identifiers, 2757 Opts.DollarIdents); 2758 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2759 Opts.setVtorDispMode( 2760 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2761 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2762 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2763 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2764 Opts.ConstStrings); 2765 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2766 using LaxKind = LangOptions::LaxVectorConversionKind; 2767 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2768 .Case("none", LaxKind::None) 2769 .Case("integer", LaxKind::Integer) 2770 .Case("all", LaxKind::All) 2771 .Default(llvm::None)) 2772 Opts.setLaxVectorConversions(*Kind); 2773 else 2774 Diags.Report(diag::err_drv_invalid_value) 2775 << A->getAsString(Args) << A->getValue(); 2776 } 2777 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2778 Opts.ThreadsafeStatics = 0; 2779 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2780 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2781 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2782 2783 // -ffixed-point 2784 Opts.FixedPoint = 2785 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2786 !Opts.CPlusPlus; 2787 Opts.PaddingOnUnsignedFixedPoint = 2788 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2789 OPT_fno_padding_on_unsigned_fixed_point, 2790 /*Default=*/false) && 2791 Opts.FixedPoint; 2792 2793 // Handle exception personalities 2794 Arg *A = Args.getLastArg( 2795 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2796 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2797 if (A) { 2798 const Option &Opt = A->getOption(); 2799 llvm::Triple T(TargetOpts.Triple); 2800 if (T.isWindowsMSVCEnvironment()) 2801 Diags.Report(diag::err_fe_invalid_exception_model) 2802 << Opt.getName() << T.str(); 2803 2804 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2805 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2806 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2807 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2808 } 2809 2810 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2811 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2812 2813 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2814 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2815 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2816 && Opts.OpenCLVersion == 200); 2817 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2818 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2819 2820 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2821 Args.hasArg(OPT_fconvergent_functions); 2822 2823 Opts.DoubleSquareBracketAttributes = 2824 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2825 OPT_fno_double_square_bracket_attributes, 2826 Opts.DoubleSquareBracketAttributes); 2827 2828 Opts.CPlusPlusModules = Opts.CPlusPlus2a; 2829 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2830 Opts.Modules = 2831 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2832 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2833 Opts.ModulesDeclUse = 2834 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2835 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2836 // enter a different module (eg, when building a header unit). 2837 Opts.ModulesLocalVisibility = 2838 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2839 Opts.CPlusPlusModules; 2840 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2841 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2842 Opts.ModulesSearchAll = Opts.Modules && 2843 !Args.hasArg(OPT_fno_modules_search_all) && 2844 Args.hasArg(OPT_fmodules_search_all); 2845 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2846 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2847 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2848 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2849 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2850 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2851 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2852 .Case("char", 1) 2853 .Case("short", 2) 2854 .Case("int", 4) 2855 .Default(0); 2856 if (Opts.WCharSize == 0) 2857 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2858 } 2859 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2860 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2861 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2862 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2863 if (!Opts.NoBuiltin) 2864 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2865 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2866 Opts.RelaxedTemplateTemplateArgs = 2867 Args.hasArg(OPT_frelaxed_template_template_args); 2868 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2869 Opts.AlignedAllocation = 2870 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2871 Opts.AlignedAllocation); 2872 Opts.AlignedAllocationUnavailable = 2873 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2874 Opts.NewAlignOverride = 2875 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2876 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2877 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2878 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2879 << A->getValue(); 2880 Opts.NewAlignOverride = 0; 2881 } 2882 Opts.ConceptSatisfactionCaching = 2883 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2884 if (Args.hasArg(OPT_fconcepts_ts)) 2885 Diags.Report(diag::warn_fe_concepts_ts_flag); 2886 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2887 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2888 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2889 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2890 Opts.InstantiationDepth = 2891 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2892 Opts.ArrowDepth = 2893 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2894 Opts.ConstexprCallDepth = 2895 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2896 Opts.ConstexprStepLimit = 2897 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2898 Opts.EnableNewConstInterp = 2899 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2900 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2901 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2902 Opts.NumLargeByValueCopy = 2903 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2904 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2905 Opts.ObjCConstantStringClass = 2906 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2907 Opts.ObjCDefaultSynthProperties = 2908 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2909 Opts.EncodeExtendedBlockSig = 2910 Args.hasArg(OPT_fencode_extended_block_signature); 2911 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2912 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2913 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2914 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2915 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2916 ? 128 2917 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2918 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2919 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2920 Opts.ROPI = Args.hasArg(OPT_fropi); 2921 Opts.RWPI = Args.hasArg(OPT_frwpi); 2922 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2923 Opts.Static = Args.hasArg(OPT_static_define); 2924 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2925 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2926 || Args.hasArg(OPT_fdump_record_layouts); 2927 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2928 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2929 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2930 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2931 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2932 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2933 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2934 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2935 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2936 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2937 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2938 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2939 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 2940 Opts.CurrentModule = Opts.ModuleName; 2941 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2942 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2943 llvm::sort(Opts.ModuleFeatures); 2944 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2945 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2946 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2947 // is enabled. 2948 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2949 | Opts.NativeHalfArgsAndReturns; 2950 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2951 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2952 2953 // __declspec is enabled by default for the PS4 by the driver, and also 2954 // enabled for Microsoft Extensions or Borland Extensions, here. 2955 // 2956 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2957 // CUDA extension. However, it is required for supporting 2958 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2959 // been rewritten in terms of something more generic, remove the Opts.CUDA 2960 // term here. 2961 Opts.DeclSpecKeyword = 2962 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2963 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2964 2965 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2966 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2967 .Case("target", LangOptions::ASMM_Target) 2968 .Case("no", LangOptions::ASMM_Off) 2969 .Case("yes", LangOptions::ASMM_On) 2970 .Default(255)) { 2971 default: 2972 Diags.Report(diag::err_drv_invalid_value) 2973 << "-faddress-space-map-mangling=" << A->getValue(); 2974 break; 2975 case LangOptions::ASMM_Target: 2976 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2977 break; 2978 case LangOptions::ASMM_On: 2979 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2980 break; 2981 case LangOptions::ASMM_Off: 2982 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2983 break; 2984 } 2985 } 2986 2987 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2988 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2989 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2990 A->getValue()) 2991 .Case("single", 2992 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2993 .Case("multiple", 2994 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2995 .Case("virtual", 2996 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2997 .Default(LangOptions::PPTMK_BestCase); 2998 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2999 Diags.Report(diag::err_drv_invalid_value) 3000 << "-fms-memptr-rep=" << A->getValue(); 3001 3002 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3003 } 3004 3005 // Check for MS default calling conventions being specified. 3006 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3007 LangOptions::DefaultCallingConvention DefaultCC = 3008 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3009 .Case("cdecl", LangOptions::DCC_CDecl) 3010 .Case("fastcall", LangOptions::DCC_FastCall) 3011 .Case("stdcall", LangOptions::DCC_StdCall) 3012 .Case("vectorcall", LangOptions::DCC_VectorCall) 3013 .Case("regcall", LangOptions::DCC_RegCall) 3014 .Default(LangOptions::DCC_None); 3015 if (DefaultCC == LangOptions::DCC_None) 3016 Diags.Report(diag::err_drv_invalid_value) 3017 << "-fdefault-calling-conv=" << A->getValue(); 3018 3019 llvm::Triple T(TargetOpts.Triple); 3020 llvm::Triple::ArchType Arch = T.getArch(); 3021 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3022 DefaultCC == LangOptions::DCC_StdCall) && 3023 Arch != llvm::Triple::x86; 3024 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3025 DefaultCC == LangOptions::DCC_RegCall) && 3026 !T.isX86(); 3027 if (emitError) 3028 Diags.Report(diag::err_drv_argument_not_allowed_with) 3029 << A->getSpelling() << T.getTriple(); 3030 else 3031 Opts.setDefaultCallingConv(DefaultCC); 3032 } 3033 3034 // -fsemantic-interposition 3035 Opts.SemanticInterposition = 3036 Args.hasArg(OPT_fsemantic_interposition) && Opts.PICLevel && !Opts.PIE; 3037 3038 // -mrtd option 3039 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3040 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3041 Diags.Report(diag::err_drv_argument_not_allowed_with) 3042 << A->getSpelling() << "-fdefault-calling-conv"; 3043 else { 3044 llvm::Triple T(TargetOpts.Triple); 3045 if (T.getArch() != llvm::Triple::x86) 3046 Diags.Report(diag::err_drv_argument_not_allowed_with) 3047 << A->getSpelling() << T.getTriple(); 3048 else 3049 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3050 } 3051 } 3052 3053 // Check if -fopenmp is specified and set default version to 4.5. 3054 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 45 : 0; 3055 // Check if -fopenmp-simd is specified. 3056 bool IsSimdSpecified = 3057 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3058 /*Default=*/false); 3059 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3060 Opts.OpenMPUseTLS = 3061 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3062 Opts.OpenMPIsDevice = 3063 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3064 Opts.OpenMPIRBuilder = 3065 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3066 bool IsTargetSpecified = 3067 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3068 3069 if (Opts.OpenMP || Opts.OpenMPSimd) { 3070 if (int Version = getLastArgIntValue( 3071 Args, OPT_fopenmp_version_EQ, 3072 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 3073 Opts.OpenMP = Version; 3074 else if (IsSimdSpecified || IsTargetSpecified) 3075 Opts.OpenMP = 45; 3076 // Provide diagnostic when a given target is not expected to be an OpenMP 3077 // device or host. 3078 if (!Opts.OpenMPIsDevice) { 3079 switch (T.getArch()) { 3080 default: 3081 break; 3082 // Add unsupported host targets here: 3083 case llvm::Triple::nvptx: 3084 case llvm::Triple::nvptx64: 3085 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3086 << TargetOpts.Triple; 3087 break; 3088 } 3089 } 3090 } 3091 3092 // Set the flag to prevent the implementation from emitting device exception 3093 // handling code for those requiring so. 3094 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 3095 Opts.Exceptions = 0; 3096 Opts.CXXExceptions = 0; 3097 } 3098 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3099 Opts.OpenMPCUDANumSMs = 3100 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3101 Opts.OpenMPCUDANumSMs, Diags); 3102 Opts.OpenMPCUDABlocksPerSM = 3103 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3104 Opts.OpenMPCUDABlocksPerSM, Diags); 3105 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3106 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3107 Opts.OpenMPCUDAReductionBufNum, Diags); 3108 } 3109 3110 // Prevent auto-widening the representation of loop counters during an 3111 // OpenMP collapse clause. 3112 Opts.OpenMPOptimisticCollapse = 3113 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3114 3115 // Get the OpenMP target triples if any. 3116 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3117 3118 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3119 llvm::Triple TT(A->getValue(i)); 3120 3121 if (TT.getArch() == llvm::Triple::UnknownArch || 3122 !(TT.getArch() == llvm::Triple::aarch64 || 3123 TT.getArch() == llvm::Triple::ppc || 3124 TT.getArch() == llvm::Triple::ppc64 || 3125 TT.getArch() == llvm::Triple::ppc64le || 3126 TT.getArch() == llvm::Triple::nvptx || 3127 TT.getArch() == llvm::Triple::nvptx64 || 3128 TT.getArch() == llvm::Triple::x86 || 3129 TT.getArch() == llvm::Triple::x86_64)) 3130 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3131 else 3132 Opts.OMPTargetTriples.push_back(TT); 3133 } 3134 } 3135 3136 // Get OpenMP host file path if any and report if a non existent file is 3137 // found 3138 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3139 Opts.OMPHostIRFile = A->getValue(); 3140 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3141 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3142 << Opts.OMPHostIRFile; 3143 } 3144 3145 Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device); 3146 3147 // Set CUDA mode for OpenMP target NVPTX if specified in options 3148 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 3149 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3150 3151 // Set CUDA mode for OpenMP target NVPTX if specified in options 3152 Opts.OpenMPCUDAForceFullRuntime = 3153 Opts.OpenMPIsDevice && T.isNVPTX() && 3154 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3155 3156 // Record whether the __DEPRECATED define was requested. 3157 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3158 OPT_fno_deprecated_macro, 3159 Opts.Deprecated); 3160 3161 // FIXME: Eliminate this dependency. 3162 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3163 OptSize = getOptimizationLevelSize(Args); 3164 Opts.Optimize = Opt != 0; 3165 Opts.OptimizeSize = OptSize != 0; 3166 3167 // This is the __NO_INLINE__ define, which just depends on things like the 3168 // optimization level and -fno-inline, not actually whether the backend has 3169 // inlining enabled. 3170 Opts.NoInlineDefine = !Opts.Optimize; 3171 if (Arg *InlineArg = Args.getLastArg( 3172 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3173 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3174 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3175 Opts.NoInlineDefine = true; 3176 3177 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 3178 Args.hasArg(OPT_cl_fast_relaxed_math); 3179 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3180 Args.hasArg(OPT_cl_finite_math_only) || 3181 Args.hasArg(OPT_cl_fast_relaxed_math); 3182 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3183 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3184 Args.hasArg(OPT_cl_fast_relaxed_math); 3185 3186 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3187 StringRef Val = A->getValue(); 3188 if (Val == "fast") 3189 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 3190 else if (Val == "on") 3191 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 3192 else if (Val == "off") 3193 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 3194 else 3195 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3196 } 3197 3198 LangOptions::FPRoundingModeKind FPRM = LangOptions::FPR_ToNearest; 3199 if (Args.hasArg(OPT_frounding_math)) { 3200 FPRM = LangOptions::FPR_Dynamic; 3201 } 3202 Opts.setFPRoundingMode(FPRM); 3203 3204 if (Args.hasArg(OPT_ftrapping_math)) { 3205 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3206 } 3207 3208 if (Args.hasArg(OPT_fno_trapping_math)) { 3209 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3210 } 3211 3212 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3213 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3214 StringRef Val = A->getValue(); 3215 if (Val.equals("ignore")) 3216 FPEB = LangOptions::FPE_Ignore; 3217 else if (Val.equals("maytrap")) 3218 FPEB = LangOptions::FPE_MayTrap; 3219 else if (Val.equals("strict")) 3220 FPEB = LangOptions::FPE_Strict; 3221 else 3222 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3223 } 3224 Opts.setFPExceptionMode(FPEB); 3225 3226 Opts.RetainCommentsFromSystemHeaders = 3227 Args.hasArg(OPT_fretain_comments_from_system_headers); 3228 3229 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3230 switch (SSP) { 3231 default: 3232 Diags.Report(diag::err_drv_invalid_value) 3233 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3234 break; 3235 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3236 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3237 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3238 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3239 } 3240 3241 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3242 StringRef Val = A->getValue(); 3243 if (Val == "uninitialized") 3244 Opts.setTrivialAutoVarInit( 3245 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3246 else if (Val == "zero") 3247 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3248 else if (Val == "pattern") 3249 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3250 else 3251 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3252 } 3253 3254 // Parse -fsanitize= arguments. 3255 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3256 Diags, Opts.Sanitize); 3257 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3258 Opts.SanitizeAddressFieldPadding = 3259 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3260 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3261 std::vector<std::string> systemBlacklists = 3262 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3263 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3264 systemBlacklists.begin(), 3265 systemBlacklists.end()); 3266 3267 // -fxray-instrument 3268 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3269 Opts.XRayAlwaysEmitCustomEvents = 3270 Args.hasArg(OPT_fxray_always_emit_customevents); 3271 Opts.XRayAlwaysEmitTypedEvents = 3272 Args.hasArg(OPT_fxray_always_emit_typedevents); 3273 3274 // -fxray-{always,never}-instrument= filenames. 3275 Opts.XRayAlwaysInstrumentFiles = 3276 Args.getAllArgValues(OPT_fxray_always_instrument); 3277 Opts.XRayNeverInstrumentFiles = 3278 Args.getAllArgValues(OPT_fxray_never_instrument); 3279 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3280 3281 // -fforce-emit-vtables 3282 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3283 3284 // -fallow-editor-placeholders 3285 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3286 3287 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3288 3289 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3290 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3291 3292 StringRef Ver = A->getValue(); 3293 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3294 unsigned Major, Minor = 0; 3295 3296 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3297 // y or y.0 (4 <= y <= current version). 3298 if (!VerParts.first.startswith("0") && 3299 !VerParts.first.getAsInteger(10, Major) && 3300 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3301 (Major == 3 ? VerParts.second.size() == 1 && 3302 !VerParts.second.getAsInteger(10, Minor) 3303 : VerParts.first.size() == Ver.size() || 3304 VerParts.second == "0")) { 3305 // Got a valid version number. 3306 if (Major == 3 && Minor <= 8) 3307 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3308 else if (Major <= 4) 3309 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3310 else if (Major <= 6) 3311 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3312 else if (Major <= 7) 3313 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3314 else if (Major <= 9) 3315 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3316 } else if (Ver != "latest") { 3317 Diags.Report(diag::err_drv_invalid_value) 3318 << A->getAsString(Args) << A->getValue(); 3319 } 3320 } 3321 3322 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3323 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3324 3325 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens, 0, Diags); 3326 } 3327 3328 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3329 switch (Action) { 3330 case frontend::ASTDeclList: 3331 case frontend::ASTDump: 3332 case frontend::ASTPrint: 3333 case frontend::ASTView: 3334 case frontend::EmitAssembly: 3335 case frontend::EmitBC: 3336 case frontend::EmitHTML: 3337 case frontend::EmitLLVM: 3338 case frontend::EmitLLVMOnly: 3339 case frontend::EmitCodeGenOnly: 3340 case frontend::EmitObj: 3341 case frontend::FixIt: 3342 case frontend::GenerateModule: 3343 case frontend::GenerateModuleInterface: 3344 case frontend::GenerateHeaderModule: 3345 case frontend::GeneratePCH: 3346 case frontend::GenerateInterfaceIfsExpV1: 3347 case frontend::ParseSyntaxOnly: 3348 case frontend::ModuleFileInfo: 3349 case frontend::VerifyPCH: 3350 case frontend::PluginAction: 3351 case frontend::RewriteObjC: 3352 case frontend::RewriteTest: 3353 case frontend::RunAnalysis: 3354 case frontend::TemplightDump: 3355 case frontend::MigrateSource: 3356 return false; 3357 3358 case frontend::DumpCompilerOptions: 3359 case frontend::DumpRawTokens: 3360 case frontend::DumpTokens: 3361 case frontend::InitOnly: 3362 case frontend::PrintPreamble: 3363 case frontend::PrintPreprocessedInput: 3364 case frontend::RewriteMacros: 3365 case frontend::RunPreprocessorOnly: 3366 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3367 return true; 3368 } 3369 llvm_unreachable("invalid frontend action"); 3370 } 3371 3372 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3373 DiagnosticsEngine &Diags, 3374 frontend::ActionKind Action) { 3375 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3376 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3377 Args.hasArg(OPT_pch_through_hdrstop_use); 3378 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3379 Opts.PCHThroughHeader = 3380 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3381 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3382 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3383 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3384 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3385 3386 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3387 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3388 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3389 3390 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3391 auto Split = StringRef(A).split('='); 3392 Opts.MacroPrefixMap.insert( 3393 {std::string(Split.first), std::string(Split.second)}); 3394 } 3395 3396 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3397 StringRef Value(A->getValue()); 3398 size_t Comma = Value.find(','); 3399 unsigned Bytes = 0; 3400 unsigned EndOfLine = 0; 3401 3402 if (Comma == StringRef::npos || 3403 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3404 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3405 Diags.Report(diag::err_drv_preamble_format); 3406 else { 3407 Opts.PrecompiledPreambleBytes.first = Bytes; 3408 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3409 } 3410 } 3411 3412 // Add the __CET__ macro if a CFProtection option is set. 3413 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3414 StringRef Name = A->getValue(); 3415 if (Name == "branch") 3416 Opts.addMacroDef("__CET__=1"); 3417 else if (Name == "return") 3418 Opts.addMacroDef("__CET__=2"); 3419 else if (Name == "full") 3420 Opts.addMacroDef("__CET__=3"); 3421 } 3422 3423 // Add macros from the command line. 3424 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3425 if (A->getOption().matches(OPT_D)) 3426 Opts.addMacroDef(A->getValue()); 3427 else 3428 Opts.addMacroUndef(A->getValue()); 3429 } 3430 3431 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3432 3433 // Add the ordered list of -includes. 3434 for (const auto *A : Args.filtered(OPT_include)) 3435 Opts.Includes.emplace_back(A->getValue()); 3436 3437 for (const auto *A : Args.filtered(OPT_chain_include)) 3438 Opts.ChainedIncludes.emplace_back(A->getValue()); 3439 3440 for (const auto *A : Args.filtered(OPT_remap_file)) { 3441 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3442 3443 if (Split.second.empty()) { 3444 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3445 continue; 3446 } 3447 3448 Opts.addRemappedFile(Split.first, Split.second); 3449 } 3450 3451 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3452 StringRef Name = A->getValue(); 3453 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3454 .Case("libc++", ARCXX_libcxx) 3455 .Case("libstdc++", ARCXX_libstdcxx) 3456 .Case("none", ARCXX_nolib) 3457 .Default(~0U); 3458 if (Library == ~0U) 3459 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3460 else 3461 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3462 } 3463 3464 // Always avoid lexing editor placeholders when we're just running the 3465 // preprocessor as we never want to emit the 3466 // "editor placeholder in source file" error in PP only mode. 3467 if (isStrictlyPreprocessorAction(Action)) 3468 Opts.LexEditorPlaceholders = false; 3469 3470 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3471 } 3472 3473 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3474 ArgList &Args, 3475 frontend::ActionKind Action) { 3476 if (isStrictlyPreprocessorAction(Action)) 3477 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3478 else 3479 Opts.ShowCPP = 0; 3480 3481 Opts.ShowComments = Args.hasArg(OPT_C); 3482 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3483 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3484 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3485 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3486 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3487 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3488 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3489 } 3490 3491 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3492 DiagnosticsEngine &Diags) { 3493 Opts.CodeModel = std::string(getCodeModel(Args, Diags)); 3494 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3495 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3496 StringRef Value = A->getValue(); 3497 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3498 .Case("default", llvm::EABI::Default) 3499 .Case("4", llvm::EABI::EABI4) 3500 .Case("5", llvm::EABI::EABI5) 3501 .Case("gnu", llvm::EABI::GNU) 3502 .Default(llvm::EABI::Unknown); 3503 if (EABIVersion == llvm::EABI::Unknown) 3504 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3505 << Value; 3506 else 3507 Opts.EABIVersion = EABIVersion; 3508 } 3509 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3510 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3511 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3512 Opts.LinkerVersion = 3513 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3514 Opts.Triple = std::string(Args.getLastArgValue(OPT_triple)); 3515 // Use the default target triple if unspecified. 3516 if (Opts.Triple.empty()) 3517 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3518 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3519 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3520 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3521 Opts.NVPTXUseShortPointers = Args.hasFlag( 3522 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3523 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3524 llvm::VersionTuple Version; 3525 if (Version.tryParse(A->getValue())) 3526 Diags.Report(diag::err_drv_invalid_value) 3527 << A->getAsString(Args) << A->getValue(); 3528 else 3529 Opts.SDKVersion = Version; 3530 } 3531 } 3532 3533 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3534 ArrayRef<const char *> CommandLineArgs, 3535 DiagnosticsEngine &Diags) { 3536 bool Success = true; 3537 3538 // Parse the arguments. 3539 const OptTable &Opts = getDriverOptTable(); 3540 const unsigned IncludedFlagsBitmask = options::CC1Option; 3541 unsigned MissingArgIndex, MissingArgCount; 3542 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3543 MissingArgCount, IncludedFlagsBitmask); 3544 LangOptions &LangOpts = *Res.getLangOpts(); 3545 3546 // Check for missing argument error. 3547 if (MissingArgCount) { 3548 Diags.Report(diag::err_drv_missing_argument) 3549 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3550 Success = false; 3551 } 3552 3553 // Issue errors on unknown arguments. 3554 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3555 auto ArgString = A->getAsString(Args); 3556 std::string Nearest; 3557 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3558 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3559 else 3560 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3561 << ArgString << Nearest; 3562 Success = false; 3563 } 3564 3565 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3566 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3567 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3568 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3569 Res.getDependencyOutputOpts().Targets.empty()) { 3570 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3571 Success = false; 3572 } 3573 Success &= 3574 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3575 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3576 ParseCommentArgs(LangOpts.CommentOpts, Args); 3577 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3578 // FIXME: We shouldn't have to pass the DashX option around here 3579 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3580 LangOpts.IsHeaderFile); 3581 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3582 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3583 Res.getTargetOpts(), Res.getFrontendOpts()); 3584 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3585 Res.getFileSystemOpts().WorkingDir); 3586 llvm::Triple T(Res.getTargetOpts().Triple); 3587 if (DashX.getFormat() == InputKind::Precompiled || 3588 DashX.getLanguage() == Language::LLVM_IR) { 3589 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3590 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3591 // what the input type is. 3592 if (Args.hasArg(OPT_fobjc_arc)) 3593 LangOpts.ObjCAutoRefCount = 1; 3594 // PIClevel and PIELevel are needed during code generation and this should be 3595 // set regardless of the input type. 3596 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3597 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3598 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3599 Diags, LangOpts.Sanitize); 3600 } else { 3601 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3602 // FIXME: Should we really be calling this for an Language::Asm input? 3603 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3604 Res.getPreprocessorOpts(), Diags); 3605 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3606 LangOpts.ObjCExceptions = 1; 3607 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3608 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3609 // preprocessed input as we don't expect it to be used with -std=libc++ 3610 // anyway. 3611 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3612 } 3613 } 3614 3615 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3616 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3617 3618 LangOpts.FunctionAlignment = 3619 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3620 3621 if (LangOpts.CUDA) { 3622 // During CUDA device-side compilation, the aux triple is the 3623 // triple used for host compilation. 3624 if (LangOpts.CUDAIsDevice) 3625 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3626 } 3627 3628 // Set the triple of the host for OpenMP device compile. 3629 if (LangOpts.OpenMPIsDevice) 3630 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3631 3632 // FIXME: Override value name discarding when asan or msan is used because the 3633 // backend passes depend on the name of the alloca in order to print out 3634 // names. 3635 Res.getCodeGenOpts().DiscardValueNames &= 3636 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3637 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3638 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3639 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3640 3641 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3642 Res.getFrontendOpts().ProgramAction); 3643 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3644 Res.getFrontendOpts().ProgramAction); 3645 3646 // Turn on -Wspir-compat for SPIR target. 3647 if (T.isSPIR()) 3648 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3649 3650 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3651 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3652 !Res.getLangOpts()->Sanitize.empty()) { 3653 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3654 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3655 } 3656 return Success; 3657 } 3658 3659 std::string CompilerInvocation::getModuleHash() const { 3660 // Note: For QoI reasons, the things we use as a hash here should all be 3661 // dumped via the -module-info flag. 3662 using llvm::hash_code; 3663 using llvm::hash_value; 3664 using llvm::hash_combine; 3665 using llvm::hash_combine_range; 3666 3667 // Start the signature with the compiler version. 3668 // FIXME: We'd rather use something more cryptographically sound than 3669 // CityHash, but this will do for now. 3670 hash_code code = hash_value(getClangFullRepositoryVersion()); 3671 3672 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3673 // and getClangFullRepositoryVersion() doesn't include git revision. 3674 code = hash_combine(code, serialization::VERSION_MAJOR, 3675 serialization::VERSION_MINOR); 3676 3677 // Extend the signature with the language options 3678 #define LANGOPT(Name, Bits, Default, Description) \ 3679 code = hash_combine(code, LangOpts->Name); 3680 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3681 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3682 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3683 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3684 #include "clang/Basic/LangOptions.def" 3685 3686 for (StringRef Feature : LangOpts->ModuleFeatures) 3687 code = hash_combine(code, Feature); 3688 3689 // Extend the signature with the target options. 3690 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3691 TargetOpts->ABI); 3692 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3693 code = hash_combine(code, FeatureAsWritten); 3694 3695 // Extend the signature with preprocessor options. 3696 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3697 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3698 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3699 3700 for (const auto &I : getPreprocessorOpts().Macros) { 3701 // If we're supposed to ignore this macro for the purposes of modules, 3702 // don't put it into the hash. 3703 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3704 // Check whether we're ignoring this macro. 3705 StringRef MacroDef = I.first; 3706 if (hsOpts.ModulesIgnoreMacros.count( 3707 llvm::CachedHashString(MacroDef.split('=').first))) 3708 continue; 3709 } 3710 3711 code = hash_combine(code, I.first, I.second); 3712 } 3713 3714 // Extend the signature with the sysroot and other header search options. 3715 code = hash_combine(code, hsOpts.Sysroot, 3716 hsOpts.ModuleFormat, 3717 hsOpts.UseDebugInfo, 3718 hsOpts.UseBuiltinIncludes, 3719 hsOpts.UseStandardSystemIncludes, 3720 hsOpts.UseStandardCXXIncludes, 3721 hsOpts.UseLibcxx, 3722 hsOpts.ModulesValidateDiagnosticOptions); 3723 code = hash_combine(code, hsOpts.ResourceDir); 3724 3725 if (hsOpts.ModulesStrictContextHash) { 3726 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3727 hsOpts.SystemHeaderPrefixes.end()); 3728 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3729 hsOpts.UserEntries.end()); 3730 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3731 hsOpts.UserEntries.size(), UEC); 3732 3733 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3734 #define DIAGOPT(Name, Bits, Default) \ 3735 code = hash_combine(code, diagOpts.Name); 3736 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3737 code = hash_combine(code, diagOpts.get##Name()); 3738 #include "clang/Basic/DiagnosticOptions.def" 3739 #undef DIAGOPT 3740 #undef ENUM_DIAGOPT 3741 } 3742 3743 // Extend the signature with the user build path. 3744 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3745 3746 // Extend the signature with the module file extensions. 3747 const FrontendOptions &frontendOpts = getFrontendOpts(); 3748 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3749 code = ext->hashExtension(code); 3750 } 3751 3752 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3753 // affects the debug info in the PCM. 3754 if (getCodeGenOpts().DebugTypeExtRefs) 3755 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3756 code = hash_combine(code, KeyValue.first, KeyValue.second); 3757 3758 // Extend the signature with the enabled sanitizers, if at least one is 3759 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3760 SanitizerSet SanHash = LangOpts->Sanitize; 3761 SanHash.clear(getPPTransparentSanitizers()); 3762 if (!SanHash.empty()) 3763 code = hash_combine(code, SanHash.Mask); 3764 3765 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3766 } 3767 3768 namespace clang { 3769 3770 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3771 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3772 DiagnosticsEngine &Diags) { 3773 return createVFSFromCompilerInvocation(CI, Diags, 3774 llvm::vfs::getRealFileSystem()); 3775 } 3776 3777 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3778 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3779 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3780 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3781 return BaseFS; 3782 3783 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3784 // earlier vfs files are on the bottom 3785 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3786 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3787 Result->getBufferForFile(File); 3788 if (!Buffer) { 3789 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3790 continue; 3791 } 3792 3793 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3794 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3795 /*DiagContext*/ nullptr, Result); 3796 if (!FS) { 3797 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3798 continue; 3799 } 3800 3801 Result = FS; 3802 } 3803 return Result; 3804 } 3805 3806 } // namespace clang 3807