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 = Args.hasArg(OPT_fxray_ignore_loops); 1103 1104 auto XRayInstrBundles = 1105 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1106 if (XRayInstrBundles.empty()) 1107 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1108 else 1109 for (const auto &A : XRayInstrBundles) 1110 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1111 Diags, Opts.XRayInstrumentationBundle); 1112 1113 Opts.PatchableFunctionEntryCount = 1114 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1115 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1116 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1117 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1118 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1119 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1120 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1121 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1122 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1123 1124 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1125 StringRef Name = A->getValue(); 1126 if (Name == "full") { 1127 Opts.CFProtectionReturn = 1; 1128 Opts.CFProtectionBranch = 1; 1129 } else if (Name == "return") 1130 Opts.CFProtectionReturn = 1; 1131 else if (Name == "branch") 1132 Opts.CFProtectionBranch = 1; 1133 else if (Name != "none") { 1134 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1135 Success = false; 1136 } 1137 } 1138 1139 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1140 OPT_compress_debug_sections_EQ)) { 1141 if (A->getOption().getID() == OPT_compress_debug_sections) { 1142 // TODO: be more clever about the compression type auto-detection 1143 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1144 } else { 1145 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1146 .Case("none", llvm::DebugCompressionType::None) 1147 .Case("zlib", llvm::DebugCompressionType::Z) 1148 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1149 .Default(llvm::DebugCompressionType::None); 1150 Opts.setCompressDebugSections(DCT); 1151 } 1152 } 1153 1154 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1155 Opts.DebugCompilationDir = 1156 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1157 for (auto *A : 1158 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1159 CodeGenOptions::BitcodeFileToLink F; 1160 F.Filename = A->getValue(); 1161 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1162 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1163 // When linking CUDA bitcode, propagate function attributes so that 1164 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1165 F.PropagateAttrs = true; 1166 F.Internalize = true; 1167 } 1168 Opts.LinkBitcodeFiles.push_back(F); 1169 } 1170 Opts.SanitizeCoverageType = 1171 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1172 Opts.SanitizeCoverageIndirectCalls = 1173 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1174 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1175 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1176 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1177 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1178 Opts.SanitizeCoverage8bitCounters = 1179 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1180 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1181 Opts.SanitizeCoverageTracePCGuard = 1182 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1183 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1184 Opts.SanitizeCoverageInline8bitCounters = 1185 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1186 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1187 Opts.SanitizeCoverageStackDepth = 1188 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1189 Opts.SanitizeMemoryTrackOrigins = 1190 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1191 Opts.SanitizeMemoryUseAfterDtor = 1192 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1193 OPT_fno_sanitize_memory_use_after_dtor, 1194 false); 1195 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1196 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1197 Opts.SanitizeCfiICallGeneralizePointers = 1198 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1199 Opts.SanitizeCfiCanonicalJumpTables = 1200 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1201 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1202 if (Arg *A = Args.getLastArg( 1203 OPT_fsanitize_address_poison_custom_array_cookie, 1204 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1205 Opts.SanitizeAddressPoisonCustomArrayCookie = 1206 A->getOption().getID() == 1207 OPT_fsanitize_address_poison_custom_array_cookie; 1208 } 1209 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1210 OPT_fno_sanitize_address_use_after_scope)) { 1211 Opts.SanitizeAddressUseAfterScope = 1212 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1213 } 1214 Opts.SanitizeAddressGlobalsDeadStripping = 1215 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1216 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1217 OPT_fno_sanitize_address_use_odr_indicator)) { 1218 Opts.SanitizeAddressUseOdrIndicator = 1219 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1220 } 1221 Opts.SSPBufferSize = 1222 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1223 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1224 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1225 StringRef Val = A->getValue(); 1226 unsigned StackAlignment = Opts.StackAlignment; 1227 Val.getAsInteger(10, StackAlignment); 1228 Opts.StackAlignment = StackAlignment; 1229 } 1230 1231 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1232 StringRef Val = A->getValue(); 1233 unsigned StackProbeSize = Opts.StackProbeSize; 1234 Val.getAsInteger(0, StackProbeSize); 1235 Opts.StackProbeSize = StackProbeSize; 1236 } 1237 1238 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1239 1240 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1241 1242 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1243 StringRef Name = A->getValue(); 1244 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1245 .Case("legacy", CodeGenOptions::Legacy) 1246 .Case("non-legacy", CodeGenOptions::NonLegacy) 1247 .Case("mixed", CodeGenOptions::Mixed) 1248 .Default(~0U); 1249 if (Method == ~0U) { 1250 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1251 Success = false; 1252 } else { 1253 Opts.setObjCDispatchMethod( 1254 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1255 } 1256 } 1257 1258 1259 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1260 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1261 1262 if (Args.getLastArg(OPT_femulated_tls) || 1263 Args.getLastArg(OPT_fno_emulated_tls)) { 1264 Opts.ExplicitEmulatedTLS = true; 1265 Opts.EmulatedTLS = 1266 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1267 } 1268 1269 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1270 StringRef Name = A->getValue(); 1271 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1272 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1273 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1274 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1275 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1276 .Default(~0U); 1277 if (Model == ~0U) { 1278 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1279 Success = false; 1280 } else { 1281 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1282 } 1283 } 1284 1285 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1286 1287 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1288 StringRef Val = A->getValue(); 1289 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1290 if (!Opts.FPDenormalMode.isValid()) 1291 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1292 } 1293 1294 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1295 StringRef Val = A->getValue(); 1296 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1297 if (!Opts.FP32DenormalMode.isValid()) 1298 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1299 } 1300 1301 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1302 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1303 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1304 } else { 1305 assert(A->getOption().matches(OPT_freg_struct_return)); 1306 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1307 } 1308 } 1309 1310 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1311 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1312 bool NeedLocTracking = false; 1313 1314 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1315 if (!Opts.OptRecordFile.empty()) 1316 NeedLocTracking = true; 1317 1318 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1319 Opts.OptRecordPasses = A->getValue(); 1320 NeedLocTracking = true; 1321 } 1322 1323 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1324 Opts.OptRecordFormat = A->getValue(); 1325 NeedLocTracking = true; 1326 } 1327 1328 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1329 Opts.OptimizationRemarkPattern = 1330 GenerateOptimizationRemarkRegex(Diags, Args, A); 1331 NeedLocTracking = true; 1332 } 1333 1334 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1335 Opts.OptimizationRemarkMissedPattern = 1336 GenerateOptimizationRemarkRegex(Diags, Args, A); 1337 NeedLocTracking = true; 1338 } 1339 1340 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1341 Opts.OptimizationRemarkAnalysisPattern = 1342 GenerateOptimizationRemarkRegex(Diags, Args, A); 1343 NeedLocTracking = true; 1344 } 1345 1346 Opts.DiagnosticsWithHotness = 1347 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1348 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1349 bool UsingProfile = UsingSampleProfile || 1350 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1351 1352 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1353 // An IR file will contain PGO as metadata 1354 IK.getLanguage() != Language::LLVM_IR) 1355 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1356 << "-fdiagnostics-show-hotness"; 1357 1358 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1359 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1360 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1361 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1362 << "-fdiagnostics-hotness-threshold="; 1363 1364 // If the user requested to use a sample profile for PGO, then the 1365 // backend will need to track source location information so the profile 1366 // can be incorporated into the IR. 1367 if (UsingSampleProfile) 1368 NeedLocTracking = true; 1369 1370 // If the user requested a flag that requires source locations available in 1371 // the backend, make sure that the backend tracks source location information. 1372 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1373 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1374 1375 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1376 1377 // Parse -fsanitize-recover= arguments. 1378 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1379 parseSanitizerKinds("-fsanitize-recover=", 1380 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1381 Opts.SanitizeRecover); 1382 parseSanitizerKinds("-fsanitize-trap=", 1383 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1384 Opts.SanitizeTrap); 1385 1386 Opts.CudaGpuBinaryFileName = 1387 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1388 1389 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1390 1391 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1392 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1393 1394 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1395 1396 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1397 1398 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1399 StringRef SignScope = A->getValue(); 1400 1401 if (SignScope.equals_lower("none")) 1402 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1403 else if (SignScope.equals_lower("all")) 1404 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1405 else if (SignScope.equals_lower("non-leaf")) 1406 Opts.setSignReturnAddress( 1407 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1408 else 1409 Diags.Report(diag::err_drv_invalid_value) 1410 << A->getAsString(Args) << SignScope; 1411 1412 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1413 StringRef SignKey = A->getValue(); 1414 if (!SignScope.empty() && !SignKey.empty()) { 1415 if (SignKey.equals_lower("a_key")) 1416 Opts.setSignReturnAddressKey( 1417 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1418 else if (SignKey.equals_lower("b_key")) 1419 Opts.setSignReturnAddressKey( 1420 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1421 else 1422 Diags.Report(diag::err_drv_invalid_value) 1423 << A->getAsString(Args) << SignKey; 1424 } 1425 } 1426 } 1427 1428 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1429 1430 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1431 1432 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1433 1434 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1435 1436 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1437 1438 Opts.SymbolPartition = 1439 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1440 1441 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1442 return Success; 1443 } 1444 1445 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1446 ArgList &Args) { 1447 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1448 Opts.Targets = Args.getAllArgValues(OPT_MT); 1449 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1450 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1451 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1452 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1453 Opts.HeaderIncludeOutputFile = 1454 std::string(Args.getLastArgValue(OPT_header_include_file)); 1455 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1456 if (Args.hasArg(OPT_show_includes)) { 1457 // Writing both /showIncludes and preprocessor output to stdout 1458 // would produce interleaved output, so use stderr for /showIncludes. 1459 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1460 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1461 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1462 else 1463 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1464 } else { 1465 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1466 } 1467 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1468 Opts.ModuleDependencyOutputDir = 1469 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1470 if (Args.hasArg(OPT_MV)) 1471 Opts.OutputFormat = DependencyOutputFormat::NMake; 1472 // Add sanitizer blacklists as extra dependencies. 1473 // They won't be discovered by the regular preprocessor, so 1474 // we let make / ninja to know about this implicit dependency. 1475 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1476 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1477 StringRef Val = A->getValue(); 1478 if (Val.find('=') == StringRef::npos) 1479 Opts.ExtraDeps.push_back(std::string(Val)); 1480 } 1481 if (Opts.IncludeSystemHeaders) { 1482 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1483 StringRef Val = A->getValue(); 1484 if (Val.find('=') == StringRef::npos) 1485 Opts.ExtraDeps.push_back(std::string(Val)); 1486 } 1487 } 1488 } 1489 1490 // Propagate the extra dependencies. 1491 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1492 Opts.ExtraDeps.push_back(A->getValue()); 1493 } 1494 1495 // Only the -fmodule-file=<file> form. 1496 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1497 StringRef Val = A->getValue(); 1498 if (Val.find('=') == StringRef::npos) 1499 Opts.ExtraDeps.push_back(std::string(Val)); 1500 } 1501 } 1502 1503 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1504 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1505 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1506 // Support both clang's -f[no-]color-diagnostics and gcc's 1507 // -f[no-]diagnostics-colors[=never|always|auto]. 1508 enum { 1509 Colors_On, 1510 Colors_Off, 1511 Colors_Auto 1512 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1513 for (auto *A : Args) { 1514 const Option &O = A->getOption(); 1515 if (O.matches(options::OPT_fcolor_diagnostics) || 1516 O.matches(options::OPT_fdiagnostics_color)) { 1517 ShowColors = Colors_On; 1518 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1519 O.matches(options::OPT_fno_diagnostics_color)) { 1520 ShowColors = Colors_Off; 1521 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1522 StringRef Value(A->getValue()); 1523 if (Value == "always") 1524 ShowColors = Colors_On; 1525 else if (Value == "never") 1526 ShowColors = Colors_Off; 1527 else if (Value == "auto") 1528 ShowColors = Colors_Auto; 1529 } 1530 } 1531 return ShowColors == Colors_On || 1532 (ShowColors == Colors_Auto && 1533 llvm::sys::Process::StandardErrHasColors()); 1534 } 1535 1536 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1537 DiagnosticsEngine *Diags) { 1538 bool Success = true; 1539 for (const auto &Prefix : VerifyPrefixes) { 1540 // Every prefix must start with a letter and contain only alphanumeric 1541 // characters, hyphens, and underscores. 1542 auto BadChar = llvm::find_if(Prefix, [](char C) { 1543 return !isAlphanumeric(C) && C != '-' && C != '_'; 1544 }); 1545 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1546 Success = false; 1547 if (Diags) { 1548 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1549 Diags->Report(diag::note_drv_verify_prefix_spelling); 1550 } 1551 } 1552 } 1553 return Success; 1554 } 1555 1556 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1557 DiagnosticsEngine *Diags, 1558 bool DefaultDiagColor, bool DefaultShowOpt) { 1559 bool Success = true; 1560 1561 Opts.DiagnosticLogFile = 1562 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1563 if (Arg *A = 1564 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1565 Opts.DiagnosticSerializationFile = A->getValue(); 1566 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1567 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1568 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1569 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1570 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1571 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1572 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1573 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1574 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1575 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1576 Opts.ShowOptionNames = 1577 Args.hasFlag(OPT_fdiagnostics_show_option, 1578 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1579 1580 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1581 1582 // Default behavior is to not to show note include stacks. 1583 Opts.ShowNoteIncludeStack = false; 1584 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1585 OPT_fno_diagnostics_show_note_include_stack)) 1586 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1587 Opts.ShowNoteIncludeStack = true; 1588 1589 StringRef ShowOverloads = 1590 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1591 if (ShowOverloads == "best") 1592 Opts.setShowOverloads(Ovl_Best); 1593 else if (ShowOverloads == "all") 1594 Opts.setShowOverloads(Ovl_All); 1595 else { 1596 Success = false; 1597 if (Diags) 1598 Diags->Report(diag::err_drv_invalid_value) 1599 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1600 << ShowOverloads; 1601 } 1602 1603 StringRef ShowCategory = 1604 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1605 if (ShowCategory == "none") 1606 Opts.ShowCategories = 0; 1607 else if (ShowCategory == "id") 1608 Opts.ShowCategories = 1; 1609 else if (ShowCategory == "name") 1610 Opts.ShowCategories = 2; 1611 else { 1612 Success = false; 1613 if (Diags) 1614 Diags->Report(diag::err_drv_invalid_value) 1615 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1616 << ShowCategory; 1617 } 1618 1619 StringRef Format = 1620 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1621 if (Format == "clang") 1622 Opts.setFormat(DiagnosticOptions::Clang); 1623 else if (Format == "msvc") 1624 Opts.setFormat(DiagnosticOptions::MSVC); 1625 else if (Format == "msvc-fallback") { 1626 Opts.setFormat(DiagnosticOptions::MSVC); 1627 Opts.CLFallbackMode = true; 1628 } else if (Format == "vi") 1629 Opts.setFormat(DiagnosticOptions::Vi); 1630 else { 1631 Success = false; 1632 if (Diags) 1633 Diags->Report(diag::err_drv_invalid_value) 1634 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1635 << Format; 1636 } 1637 1638 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1639 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1640 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1641 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1642 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1643 if (Args.hasArg(OPT_verify)) 1644 Opts.VerifyPrefixes.push_back("expected"); 1645 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1646 // then sort it to prepare for fast lookup using std::binary_search. 1647 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1648 Opts.VerifyDiagnostics = false; 1649 Success = false; 1650 } 1651 else 1652 llvm::sort(Opts.VerifyPrefixes); 1653 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1654 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1655 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1656 Diags, DiagMask); 1657 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1658 DiagMask = DiagnosticLevelMask::All; 1659 Opts.setVerifyIgnoreUnexpected(DiagMask); 1660 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1661 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1662 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1663 Opts.MacroBacktraceLimit = 1664 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1665 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1666 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1667 Args, OPT_ftemplate_backtrace_limit, 1668 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1669 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1670 Args, OPT_fconstexpr_backtrace_limit, 1671 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1672 Opts.SpellCheckingLimit = getLastArgIntValue( 1673 Args, OPT_fspell_checking_limit, 1674 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1675 Opts.SnippetLineLimit = getLastArgIntValue( 1676 Args, OPT_fcaret_diagnostics_max_lines, 1677 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1678 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1679 DiagnosticOptions::DefaultTabStop, Diags); 1680 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1681 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1682 if (Diags) 1683 Diags->Report(diag::warn_ignoring_ftabstop_value) 1684 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1685 } 1686 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1687 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1688 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1689 1690 return Success; 1691 } 1692 1693 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1694 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1695 } 1696 1697 /// Parse the argument to the -ftest-module-file-extension 1698 /// command-line argument. 1699 /// 1700 /// \returns true on error, false on success. 1701 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1702 std::string &BlockName, 1703 unsigned &MajorVersion, 1704 unsigned &MinorVersion, 1705 bool &Hashed, 1706 std::string &UserInfo) { 1707 SmallVector<StringRef, 5> Args; 1708 Arg.split(Args, ':', 5); 1709 if (Args.size() < 5) 1710 return true; 1711 1712 BlockName = std::string(Args[0]); 1713 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1714 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1715 if (Args[3].getAsInteger(2, Hashed)) return true; 1716 if (Args.size() > 4) 1717 UserInfo = std::string(Args[4]); 1718 return false; 1719 } 1720 1721 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1722 DiagnosticsEngine &Diags, 1723 bool &IsHeaderFile) { 1724 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1725 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1726 switch (A->getOption().getID()) { 1727 default: 1728 llvm_unreachable("Invalid option in group!"); 1729 case OPT_ast_list: 1730 Opts.ProgramAction = frontend::ASTDeclList; break; 1731 case OPT_ast_dump_all_EQ: 1732 case OPT_ast_dump_EQ: { 1733 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1734 .CaseLower("default", ADOF_Default) 1735 .CaseLower("json", ADOF_JSON) 1736 .Default(std::numeric_limits<unsigned>::max()); 1737 1738 if (Val != std::numeric_limits<unsigned>::max()) 1739 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1740 else { 1741 Diags.Report(diag::err_drv_invalid_value) 1742 << A->getAsString(Args) << A->getValue(); 1743 Opts.ASTDumpFormat = ADOF_Default; 1744 } 1745 LLVM_FALLTHROUGH; 1746 } 1747 case OPT_ast_dump: 1748 case OPT_ast_dump_all: 1749 case OPT_ast_dump_lookups: 1750 Opts.ProgramAction = frontend::ASTDump; break; 1751 case OPT_ast_print: 1752 Opts.ProgramAction = frontend::ASTPrint; break; 1753 case OPT_ast_view: 1754 Opts.ProgramAction = frontend::ASTView; break; 1755 case OPT_compiler_options_dump: 1756 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1757 case OPT_dump_raw_tokens: 1758 Opts.ProgramAction = frontend::DumpRawTokens; break; 1759 case OPT_dump_tokens: 1760 Opts.ProgramAction = frontend::DumpTokens; break; 1761 case OPT_S: 1762 Opts.ProgramAction = frontend::EmitAssembly; break; 1763 case OPT_emit_llvm_bc: 1764 Opts.ProgramAction = frontend::EmitBC; break; 1765 case OPT_emit_html: 1766 Opts.ProgramAction = frontend::EmitHTML; break; 1767 case OPT_emit_llvm: 1768 Opts.ProgramAction = frontend::EmitLLVM; break; 1769 case OPT_emit_llvm_only: 1770 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1771 case OPT_emit_codegen_only: 1772 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1773 case OPT_emit_obj: 1774 Opts.ProgramAction = frontend::EmitObj; break; 1775 case OPT_fixit_EQ: 1776 Opts.FixItSuffix = A->getValue(); 1777 LLVM_FALLTHROUGH; 1778 case OPT_fixit: 1779 Opts.ProgramAction = frontend::FixIt; break; 1780 case OPT_emit_module: 1781 Opts.ProgramAction = frontend::GenerateModule; break; 1782 case OPT_emit_module_interface: 1783 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1784 case OPT_emit_header_module: 1785 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1786 case OPT_emit_pch: 1787 Opts.ProgramAction = frontend::GeneratePCH; break; 1788 case OPT_emit_interface_stubs: { 1789 StringRef ArgStr = 1790 Args.hasArg(OPT_interface_stub_version_EQ) 1791 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1792 : "experimental-ifs-v1"; 1793 if (ArgStr == "experimental-yaml-elf-v1" || 1794 ArgStr == "experimental-tapi-elf-v1") { 1795 std::string ErrorMessage = 1796 "Invalid interface stub format: " + ArgStr.str() + 1797 " is deprecated."; 1798 Diags.Report(diag::err_drv_invalid_value) 1799 << "Must specify a valid interface stub format type, ie: " 1800 "-interface-stub-version=experimental-ifs-v1" 1801 << ErrorMessage; 1802 } else if (ArgStr != "experimental-ifs-v1") { 1803 std::string ErrorMessage = 1804 "Invalid interface stub format: " + ArgStr.str() + "."; 1805 Diags.Report(diag::err_drv_invalid_value) 1806 << "Must specify a valid interface stub format type, ie: " 1807 "-interface-stub-version=experimental-ifs-v1" 1808 << ErrorMessage; 1809 } else { 1810 Opts.ProgramAction = frontend::GenerateInterfaceIfsExpV1; 1811 } 1812 break; 1813 } 1814 case OPT_init_only: 1815 Opts.ProgramAction = frontend::InitOnly; break; 1816 case OPT_fsyntax_only: 1817 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1818 case OPT_module_file_info: 1819 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1820 case OPT_verify_pch: 1821 Opts.ProgramAction = frontend::VerifyPCH; break; 1822 case OPT_print_preamble: 1823 Opts.ProgramAction = frontend::PrintPreamble; break; 1824 case OPT_E: 1825 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1826 case OPT_templight_dump: 1827 Opts.ProgramAction = frontend::TemplightDump; break; 1828 case OPT_rewrite_macros: 1829 Opts.ProgramAction = frontend::RewriteMacros; break; 1830 case OPT_rewrite_objc: 1831 Opts.ProgramAction = frontend::RewriteObjC; break; 1832 case OPT_rewrite_test: 1833 Opts.ProgramAction = frontend::RewriteTest; break; 1834 case OPT_analyze: 1835 Opts.ProgramAction = frontend::RunAnalysis; break; 1836 case OPT_migrate: 1837 Opts.ProgramAction = frontend::MigrateSource; break; 1838 case OPT_Eonly: 1839 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1840 case OPT_print_dependency_directives_minimized_source: 1841 Opts.ProgramAction = 1842 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1843 break; 1844 } 1845 } 1846 1847 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1848 Opts.Plugins.emplace_back(A->getValue(0)); 1849 Opts.ProgramAction = frontend::PluginAction; 1850 Opts.ActionName = A->getValue(); 1851 } 1852 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1853 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1854 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1855 1856 for (const std::string &Arg : 1857 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1858 std::string BlockName; 1859 unsigned MajorVersion; 1860 unsigned MinorVersion; 1861 bool Hashed; 1862 std::string UserInfo; 1863 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1864 MinorVersion, Hashed, UserInfo)) { 1865 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1866 1867 continue; 1868 } 1869 1870 // Add the testing module file extension. 1871 Opts.ModuleFileExtensions.push_back( 1872 std::make_shared<TestModuleFileExtension>( 1873 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1874 } 1875 1876 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1877 Opts.CodeCompletionAt = 1878 ParsedSourceLocation::FromString(A->getValue()); 1879 if (Opts.CodeCompletionAt.FileName.empty()) 1880 Diags.Report(diag::err_drv_invalid_value) 1881 << A->getAsString(Args) << A->getValue(); 1882 } 1883 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1884 1885 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1886 Opts.Plugins = Args.getAllArgValues(OPT_load); 1887 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1888 Opts.ShowHelp = Args.hasArg(OPT_help); 1889 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1890 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1891 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1892 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1893 Opts.TimeTraceGranularity = getLastArgIntValue( 1894 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1895 Opts.ShowVersion = Args.hasArg(OPT_version); 1896 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1897 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1898 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1899 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1900 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1901 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1902 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1903 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1904 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1905 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1906 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1907 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1908 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1909 // Only the -fmodule-file=<file> form. 1910 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1911 StringRef Val = A->getValue(); 1912 if (Val.find('=') == StringRef::npos) 1913 Opts.ModuleFiles.push_back(std::string(Val)); 1914 } 1915 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1916 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1917 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1918 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1919 1920 Opts.CodeCompleteOpts.IncludeMacros 1921 = Args.hasArg(OPT_code_completion_macros); 1922 Opts.CodeCompleteOpts.IncludeCodePatterns 1923 = Args.hasArg(OPT_code_completion_patterns); 1924 Opts.CodeCompleteOpts.IncludeGlobals 1925 = !Args.hasArg(OPT_no_code_completion_globals); 1926 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1927 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1928 Opts.CodeCompleteOpts.IncludeBriefComments 1929 = Args.hasArg(OPT_code_completion_brief_comments); 1930 Opts.CodeCompleteOpts.IncludeFixIts 1931 = Args.hasArg(OPT_code_completion_with_fixits); 1932 1933 Opts.OverrideRecordLayoutsFile = 1934 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1935 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1936 if (Args.hasArg(OPT_aux_target_cpu)) 1937 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1938 if (Args.hasArg(OPT_aux_target_feature)) 1939 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1940 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1941 1942 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1943 OPT_arcmt_modify, 1944 OPT_arcmt_migrate)) { 1945 switch (A->getOption().getID()) { 1946 default: 1947 llvm_unreachable("missed a case"); 1948 case OPT_arcmt_check: 1949 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1950 break; 1951 case OPT_arcmt_modify: 1952 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1953 break; 1954 case OPT_arcmt_migrate: 1955 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1956 break; 1957 } 1958 } 1959 Opts.MTMigrateDir = 1960 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1961 Opts.ARCMTMigrateReportOut = 1962 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1963 Opts.ARCMTMigrateEmitARCErrors 1964 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1965 1966 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1967 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1968 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1969 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1970 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1971 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1972 if (Args.hasArg(OPT_objcmt_migrate_property)) 1973 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1974 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1975 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1976 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1977 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1978 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1979 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1980 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1981 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1982 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1983 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1984 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1985 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1986 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1987 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1988 if (Args.hasArg(OPT_objcmt_atomic_property)) 1989 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1990 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1991 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1992 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1993 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1994 if (Args.hasArg(OPT_objcmt_migrate_all)) 1995 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1996 1997 Opts.ObjCMTWhiteListPath = 1998 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 1999 2000 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2001 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2002 Diags.Report(diag::err_drv_argument_not_allowed_with) 2003 << "ARC migration" << "ObjC migration"; 2004 } 2005 2006 InputKind DashX(Language::Unknown); 2007 if (const Arg *A = Args.getLastArg(OPT_x)) { 2008 StringRef XValue = A->getValue(); 2009 2010 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2011 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2012 bool Preprocessed = XValue.consume_back("-cpp-output"); 2013 bool ModuleMap = XValue.consume_back("-module-map"); 2014 IsHeaderFile = 2015 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 2016 2017 // Principal languages. 2018 DashX = llvm::StringSwitch<InputKind>(XValue) 2019 .Case("c", Language::C) 2020 .Case("cl", Language::OpenCL) 2021 .Case("cuda", Language::CUDA) 2022 .Case("hip", Language::HIP) 2023 .Case("c++", Language::CXX) 2024 .Case("objective-c", Language::ObjC) 2025 .Case("objective-c++", Language::ObjCXX) 2026 .Case("renderscript", Language::RenderScript) 2027 .Default(Language::Unknown); 2028 2029 // "objc[++]-cpp-output" is an acceptable synonym for 2030 // "objective-c[++]-cpp-output". 2031 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2032 DashX = llvm::StringSwitch<InputKind>(XValue) 2033 .Case("objc", Language::ObjC) 2034 .Case("objc++", Language::ObjCXX) 2035 .Default(Language::Unknown); 2036 2037 // Some special cases cannot be combined with suffixes. 2038 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2039 DashX = llvm::StringSwitch<InputKind>(XValue) 2040 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2041 .Case("assembler-with-cpp", Language::Asm) 2042 .Cases("ast", "pcm", 2043 InputKind(Language::Unknown, InputKind::Precompiled)) 2044 .Case("ir", Language::LLVM_IR) 2045 .Default(Language::Unknown); 2046 2047 if (DashX.isUnknown()) 2048 Diags.Report(diag::err_drv_invalid_value) 2049 << A->getAsString(Args) << A->getValue(); 2050 2051 if (Preprocessed) 2052 DashX = DashX.getPreprocessed(); 2053 if (ModuleMap) 2054 DashX = DashX.withFormat(InputKind::ModuleMap); 2055 } 2056 2057 // '-' is the default input if none is given. 2058 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2059 Opts.Inputs.clear(); 2060 if (Inputs.empty()) 2061 Inputs.push_back("-"); 2062 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2063 InputKind IK = DashX; 2064 if (IK.isUnknown()) { 2065 IK = FrontendOptions::getInputKindForExtension( 2066 StringRef(Inputs[i]).rsplit('.').second); 2067 // FIXME: Warn on this? 2068 if (IK.isUnknown()) 2069 IK = Language::C; 2070 // FIXME: Remove this hack. 2071 if (i == 0) 2072 DashX = IK; 2073 } 2074 2075 // The -emit-module action implicitly takes a module map. 2076 if (Opts.ProgramAction == frontend::GenerateModule && 2077 IK.getFormat() == InputKind::Source) 2078 IK = IK.withFormat(InputKind::ModuleMap); 2079 2080 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 2081 } 2082 2083 return DashX; 2084 } 2085 2086 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2087 void *MainAddr) { 2088 std::string ClangExecutable = 2089 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2090 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2091 } 2092 2093 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2094 const std::string &WorkingDir) { 2095 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2096 Opts.Verbose = Args.hasArg(OPT_v); 2097 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2098 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2099 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2100 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2101 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2102 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2103 2104 // Canonicalize -fmodules-cache-path before storing it. 2105 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2106 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2107 if (WorkingDir.empty()) 2108 llvm::sys::fs::make_absolute(P); 2109 else 2110 llvm::sys::fs::make_absolute(WorkingDir, P); 2111 } 2112 llvm::sys::path::remove_dots(P); 2113 Opts.ModuleCachePath = std::string(P.str()); 2114 2115 Opts.ModuleUserBuildPath = 2116 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2117 // Only the -fmodule-file=<name>=<file> form. 2118 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2119 StringRef Val = A->getValue(); 2120 if (Val.find('=') != StringRef::npos){ 2121 auto Split = Val.split('='); 2122 Opts.PrebuiltModuleFiles.insert( 2123 {std::string(Split.first), std::string(Split.second)}); 2124 } 2125 } 2126 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2127 Opts.AddPrebuiltModulePath(A->getValue()); 2128 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2129 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2130 Opts.ModulesStrictContextHash = Args.hasArg(OPT_fmodules_strict_context_hash); 2131 Opts.ModulesValidateDiagnosticOptions = 2132 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2133 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2134 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2135 Opts.ModuleCachePruneInterval = 2136 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2137 Opts.ModuleCachePruneAfter = 2138 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2139 Opts.ModulesValidateOncePerBuildSession = 2140 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2141 Opts.BuildSessionTimestamp = 2142 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2143 Opts.ModulesValidateSystemHeaders = 2144 Args.hasArg(OPT_fmodules_validate_system_headers); 2145 Opts.ValidateASTInputFilesContent = 2146 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2147 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2148 Opts.ModuleFormat = A->getValue(); 2149 2150 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2151 StringRef MacroDef = A->getValue(); 2152 Opts.ModulesIgnoreMacros.insert( 2153 llvm::CachedHashString(MacroDef.split('=').first)); 2154 } 2155 2156 // Add -I..., -F..., and -index-header-map options in order. 2157 bool IsIndexHeaderMap = false; 2158 bool IsSysrootSpecified = 2159 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2160 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2161 if (A->getOption().matches(OPT_index_header_map)) { 2162 // -index-header-map applies to the next -I or -F. 2163 IsIndexHeaderMap = true; 2164 continue; 2165 } 2166 2167 frontend::IncludeDirGroup Group = 2168 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2169 2170 bool IsFramework = A->getOption().matches(OPT_F); 2171 std::string Path = A->getValue(); 2172 2173 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2174 SmallString<32> Buffer; 2175 llvm::sys::path::append(Buffer, Opts.Sysroot, 2176 llvm::StringRef(A->getValue()).substr(1)); 2177 Path = std::string(Buffer.str()); 2178 } 2179 2180 Opts.AddPath(Path, Group, IsFramework, 2181 /*IgnoreSysroot*/ true); 2182 IsIndexHeaderMap = false; 2183 } 2184 2185 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2186 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2187 for (const auto *A : 2188 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2189 if (A->getOption().matches(OPT_iprefix)) 2190 Prefix = A->getValue(); 2191 else if (A->getOption().matches(OPT_iwithprefix)) 2192 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2193 else 2194 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2195 } 2196 2197 for (const auto *A : Args.filtered(OPT_idirafter)) 2198 Opts.AddPath(A->getValue(), frontend::After, false, true); 2199 for (const auto *A : Args.filtered(OPT_iquote)) 2200 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2201 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2202 Opts.AddPath(A->getValue(), frontend::System, false, 2203 !A->getOption().matches(OPT_iwithsysroot)); 2204 for (const auto *A : Args.filtered(OPT_iframework)) 2205 Opts.AddPath(A->getValue(), frontend::System, true, true); 2206 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2207 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2208 /*IgnoreSysRoot=*/false); 2209 2210 // Add the paths for the various language specific isystem flags. 2211 for (const auto *A : Args.filtered(OPT_c_isystem)) 2212 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2213 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2214 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2215 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2216 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2217 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2218 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2219 2220 // Add the internal paths from a driver that detects standard include paths. 2221 for (const auto *A : 2222 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2223 frontend::IncludeDirGroup Group = frontend::System; 2224 if (A->getOption().matches(OPT_internal_externc_isystem)) 2225 Group = frontend::ExternCSystem; 2226 Opts.AddPath(A->getValue(), Group, false, true); 2227 } 2228 2229 // Add the path prefixes which are implicitly treated as being system headers. 2230 for (const auto *A : 2231 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2232 Opts.AddSystemHeaderPrefix( 2233 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2234 2235 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2236 Opts.AddVFSOverlayFile(A->getValue()); 2237 } 2238 2239 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2240 const llvm::Triple &T, 2241 PreprocessorOptions &PPOpts, 2242 LangStandard::Kind LangStd) { 2243 // Set some properties which depend solely on the input kind; it would be nice 2244 // to move these to the language standard, and have the driver resolve the 2245 // input kind + language standard. 2246 // 2247 // FIXME: Perhaps a better model would be for a single source file to have 2248 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2249 // simultaneously active? 2250 if (IK.getLanguage() == Language::Asm) { 2251 Opts.AsmPreprocessor = 1; 2252 } else if (IK.isObjectiveC()) { 2253 Opts.ObjC = 1; 2254 } 2255 2256 if (LangStd == LangStandard::lang_unspecified) { 2257 // Based on the base language, pick one. 2258 switch (IK.getLanguage()) { 2259 case Language::Unknown: 2260 case Language::LLVM_IR: 2261 llvm_unreachable("Invalid input kind!"); 2262 case Language::OpenCL: 2263 LangStd = LangStandard::lang_opencl10; 2264 break; 2265 case Language::CUDA: 2266 LangStd = LangStandard::lang_cuda; 2267 break; 2268 case Language::Asm: 2269 case Language::C: 2270 #if defined(CLANG_DEFAULT_STD_C) 2271 LangStd = CLANG_DEFAULT_STD_C; 2272 #else 2273 // The PS4 uses C99 as the default C standard. 2274 if (T.isPS4()) 2275 LangStd = LangStandard::lang_gnu99; 2276 else 2277 LangStd = LangStandard::lang_gnu11; 2278 #endif 2279 break; 2280 case Language::ObjC: 2281 #if defined(CLANG_DEFAULT_STD_C) 2282 LangStd = CLANG_DEFAULT_STD_C; 2283 #else 2284 LangStd = LangStandard::lang_gnu11; 2285 #endif 2286 break; 2287 case Language::CXX: 2288 case Language::ObjCXX: 2289 #if defined(CLANG_DEFAULT_STD_CXX) 2290 LangStd = CLANG_DEFAULT_STD_CXX; 2291 #else 2292 LangStd = LangStandard::lang_gnucxx14; 2293 #endif 2294 break; 2295 case Language::RenderScript: 2296 LangStd = LangStandard::lang_c99; 2297 break; 2298 case Language::HIP: 2299 LangStd = LangStandard::lang_hip; 2300 break; 2301 } 2302 } 2303 2304 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2305 Opts.LineComment = Std.hasLineComments(); 2306 Opts.C99 = Std.isC99(); 2307 Opts.C11 = Std.isC11(); 2308 Opts.C17 = Std.isC17(); 2309 Opts.C2x = Std.isC2x(); 2310 Opts.CPlusPlus = Std.isCPlusPlus(); 2311 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2312 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2313 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2314 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2315 Opts.Digraphs = Std.hasDigraphs(); 2316 Opts.GNUMode = Std.isGNUMode(); 2317 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2318 Opts.GNUCVersion = 0; 2319 Opts.HexFloats = Std.hasHexFloats(); 2320 Opts.ImplicitInt = Std.hasImplicitInt(); 2321 2322 // Set OpenCL Version. 2323 Opts.OpenCL = Std.isOpenCL(); 2324 if (LangStd == LangStandard::lang_opencl10) 2325 Opts.OpenCLVersion = 100; 2326 else if (LangStd == LangStandard::lang_opencl11) 2327 Opts.OpenCLVersion = 110; 2328 else if (LangStd == LangStandard::lang_opencl12) 2329 Opts.OpenCLVersion = 120; 2330 else if (LangStd == LangStandard::lang_opencl20) 2331 Opts.OpenCLVersion = 200; 2332 else if (LangStd == LangStandard::lang_openclcpp) 2333 Opts.OpenCLCPlusPlusVersion = 100; 2334 2335 // OpenCL has some additional defaults. 2336 if (Opts.OpenCL) { 2337 Opts.AltiVec = 0; 2338 Opts.ZVector = 0; 2339 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2340 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2341 Opts.NativeHalfType = 1; 2342 Opts.NativeHalfArgsAndReturns = 1; 2343 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2344 2345 // Include default header file for OpenCL. 2346 if (Opts.IncludeDefaultHeader) { 2347 if (Opts.DeclareOpenCLBuiltins) { 2348 // Only include base header file for builtin types and constants. 2349 PPOpts.Includes.push_back("opencl-c-base.h"); 2350 } else { 2351 PPOpts.Includes.push_back("opencl-c.h"); 2352 } 2353 } 2354 } 2355 2356 Opts.HIP = IK.getLanguage() == Language::HIP; 2357 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2358 if (Opts.CUDA) 2359 // Set default FP_CONTRACT to FAST. 2360 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2361 2362 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2363 if (Opts.RenderScript) { 2364 Opts.NativeHalfType = 1; 2365 Opts.NativeHalfArgsAndReturns = 1; 2366 } 2367 2368 // OpenCL and C++ both have bool, true, false keywords. 2369 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2370 2371 // OpenCL has half keyword 2372 Opts.Half = Opts.OpenCL; 2373 2374 // C++ has wchar_t keyword. 2375 Opts.WChar = Opts.CPlusPlus; 2376 2377 Opts.GNUKeywords = Opts.GNUMode; 2378 Opts.CXXOperatorNames = Opts.CPlusPlus; 2379 2380 Opts.AlignedAllocation = Opts.CPlusPlus17; 2381 2382 Opts.DollarIdents = !Opts.AsmPreprocessor; 2383 2384 // Enable [[]] attributes in C++11 and C2x by default. 2385 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2386 } 2387 2388 /// Attempt to parse a visibility value out of the given argument. 2389 static Visibility parseVisibility(Arg *arg, ArgList &args, 2390 DiagnosticsEngine &diags) { 2391 StringRef value = arg->getValue(); 2392 if (value == "default") { 2393 return DefaultVisibility; 2394 } else if (value == "hidden" || value == "internal") { 2395 return HiddenVisibility; 2396 } else if (value == "protected") { 2397 // FIXME: diagnose if target does not support protected visibility 2398 return ProtectedVisibility; 2399 } 2400 2401 diags.Report(diag::err_drv_invalid_value) 2402 << arg->getAsString(args) << value; 2403 return DefaultVisibility; 2404 } 2405 2406 /// Check if input file kind and language standard are compatible. 2407 static bool IsInputCompatibleWithStandard(InputKind IK, 2408 const LangStandard &S) { 2409 switch (IK.getLanguage()) { 2410 case Language::Unknown: 2411 case Language::LLVM_IR: 2412 llvm_unreachable("should not parse language flags for this input"); 2413 2414 case Language::C: 2415 case Language::ObjC: 2416 case Language::RenderScript: 2417 return S.getLanguage() == Language::C; 2418 2419 case Language::OpenCL: 2420 return S.getLanguage() == Language::OpenCL; 2421 2422 case Language::CXX: 2423 case Language::ObjCXX: 2424 return S.getLanguage() == Language::CXX; 2425 2426 case Language::CUDA: 2427 // FIXME: What -std= values should be permitted for CUDA compilations? 2428 return S.getLanguage() == Language::CUDA || 2429 S.getLanguage() == Language::CXX; 2430 2431 case Language::HIP: 2432 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2433 2434 case Language::Asm: 2435 // Accept (and ignore) all -std= values. 2436 // FIXME: The -std= value is not ignored; it affects the tokenization 2437 // and preprocessing rules if we're preprocessing this asm input. 2438 return true; 2439 } 2440 2441 llvm_unreachable("unexpected input language"); 2442 } 2443 2444 /// Get language name for given input kind. 2445 static const StringRef GetInputKindName(InputKind IK) { 2446 switch (IK.getLanguage()) { 2447 case Language::C: 2448 return "C"; 2449 case Language::ObjC: 2450 return "Objective-C"; 2451 case Language::CXX: 2452 return "C++"; 2453 case Language::ObjCXX: 2454 return "Objective-C++"; 2455 case Language::OpenCL: 2456 return "OpenCL"; 2457 case Language::CUDA: 2458 return "CUDA"; 2459 case Language::RenderScript: 2460 return "RenderScript"; 2461 case Language::HIP: 2462 return "HIP"; 2463 2464 case Language::Asm: 2465 return "Asm"; 2466 case Language::LLVM_IR: 2467 return "LLVM IR"; 2468 2469 case Language::Unknown: 2470 break; 2471 } 2472 llvm_unreachable("unknown input language"); 2473 } 2474 2475 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2476 const TargetOptions &TargetOpts, 2477 PreprocessorOptions &PPOpts, 2478 DiagnosticsEngine &Diags) { 2479 // FIXME: Cleanup per-file based stuff. 2480 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2481 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2482 LangStd = LangStandard::getLangKind(A->getValue()); 2483 if (LangStd == LangStandard::lang_unspecified) { 2484 Diags.Report(diag::err_drv_invalid_value) 2485 << A->getAsString(Args) << A->getValue(); 2486 // Report supported standards with short description. 2487 for (unsigned KindValue = 0; 2488 KindValue != LangStandard::lang_unspecified; 2489 ++KindValue) { 2490 const LangStandard &Std = LangStandard::getLangStandardForKind( 2491 static_cast<LangStandard::Kind>(KindValue)); 2492 if (IsInputCompatibleWithStandard(IK, Std)) { 2493 auto Diag = Diags.Report(diag::note_drv_use_standard); 2494 Diag << Std.getName() << Std.getDescription(); 2495 unsigned NumAliases = 0; 2496 #define LANGSTANDARD(id, name, lang, desc, features) 2497 #define LANGSTANDARD_ALIAS(id, alias) \ 2498 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2499 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2500 #include "clang/Basic/LangStandards.def" 2501 Diag << NumAliases; 2502 #define LANGSTANDARD(id, name, lang, desc, features) 2503 #define LANGSTANDARD_ALIAS(id, alias) \ 2504 if (KindValue == LangStandard::lang_##id) Diag << alias; 2505 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2506 #include "clang/Basic/LangStandards.def" 2507 } 2508 } 2509 } else { 2510 // Valid standard, check to make sure language and standard are 2511 // compatible. 2512 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2513 if (!IsInputCompatibleWithStandard(IK, Std)) { 2514 Diags.Report(diag::err_drv_argument_not_allowed_with) 2515 << A->getAsString(Args) << GetInputKindName(IK); 2516 } 2517 } 2518 } 2519 2520 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2521 Opts.DllExportInlines = false; 2522 2523 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2524 StringRef Name = A->getValue(); 2525 if (Name == "full" || Name == "branch") { 2526 Opts.CFProtectionBranch = 1; 2527 } 2528 } 2529 // -cl-std only applies for OpenCL language standards. 2530 // Override the -std option in this case. 2531 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2532 LangStandard::Kind OpenCLLangStd 2533 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2534 .Cases("cl", "CL", LangStandard::lang_opencl10) 2535 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2536 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2537 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2538 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2539 .Default(LangStandard::lang_unspecified); 2540 2541 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2542 Diags.Report(diag::err_drv_invalid_value) 2543 << A->getAsString(Args) << A->getValue(); 2544 } 2545 else 2546 LangStd = OpenCLLangStd; 2547 } 2548 2549 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2550 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2551 2552 llvm::Triple T(TargetOpts.Triple); 2553 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2554 2555 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2556 // This option should be deprecated for CL > 1.0 because 2557 // this option was added for compatibility with OpenCL 1.0. 2558 if (Args.getLastArg(OPT_cl_strict_aliasing) 2559 && Opts.OpenCLVersion > 100) { 2560 Diags.Report(diag::warn_option_invalid_ocl_version) 2561 << Opts.getOpenCLVersionTuple().getAsString() 2562 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2563 } 2564 2565 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2566 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2567 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2568 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2569 // name, as it doesn't seem a useful distinction. 2570 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2571 Opts.GNUKeywords); 2572 2573 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2574 2575 if (Args.hasArg(OPT_fno_operator_names)) 2576 Opts.CXXOperatorNames = 0; 2577 2578 if (Args.hasArg(OPT_fcuda_is_device)) 2579 Opts.CUDAIsDevice = 1; 2580 2581 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2582 Opts.CUDAAllowVariadicFunctions = 1; 2583 2584 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2585 Opts.CUDAHostDeviceConstexpr = 0; 2586 2587 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2588 Opts.CUDADeviceApproxTranscendentals = 1; 2589 2590 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2591 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2592 if (Opts.HIP) 2593 Opts.GPUAllowDeviceInit = 1; 2594 else 2595 Diags.Report(diag::warn_ignored_hip_only_option) 2596 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2597 } 2598 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2599 if (Opts.HIP) 2600 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2601 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2602 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2603 Diags.Report(diag::warn_ignored_hip_only_option) 2604 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2605 2606 if (Opts.ObjC) { 2607 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2608 StringRef value = arg->getValue(); 2609 if (Opts.ObjCRuntime.tryParse(value)) 2610 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2611 } 2612 2613 if (Args.hasArg(OPT_fobjc_gc_only)) 2614 Opts.setGC(LangOptions::GCOnly); 2615 else if (Args.hasArg(OPT_fobjc_gc)) 2616 Opts.setGC(LangOptions::HybridGC); 2617 else if (Args.hasArg(OPT_fobjc_arc)) { 2618 Opts.ObjCAutoRefCount = 1; 2619 if (!Opts.ObjCRuntime.allowsARC()) 2620 Diags.Report(diag::err_arc_unsupported_on_runtime); 2621 } 2622 2623 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2624 // whether the feature is actually enabled. This is predominantly 2625 // determined by -fobjc-runtime, but we allow it to be overridden 2626 // from the command line for testing purposes. 2627 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2628 Opts.ObjCWeakRuntime = 1; 2629 else 2630 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2631 2632 // ObjCWeak determines whether __weak is actually enabled. 2633 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2634 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2635 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2636 assert(!Opts.ObjCWeak); 2637 } else if (Opts.getGC() != LangOptions::NonGC) { 2638 Diags.Report(diag::err_objc_weak_with_gc); 2639 } else if (!Opts.ObjCWeakRuntime) { 2640 Diags.Report(diag::err_objc_weak_unsupported); 2641 } else { 2642 Opts.ObjCWeak = 1; 2643 } 2644 } else if (Opts.ObjCAutoRefCount) { 2645 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2646 } 2647 2648 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2649 Opts.ObjCInferRelatedResultType = 0; 2650 2651 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2652 Opts.ObjCSubscriptingLegacyRuntime = 2653 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2654 } 2655 2656 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2657 // Check that the version has 1 to 3 components and the minor and patch 2658 // versions fit in two decimal digits. 2659 VersionTuple GNUCVer; 2660 bool Invalid = GNUCVer.tryParse(A->getValue()); 2661 unsigned Major = GNUCVer.getMajor(); 2662 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2663 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2664 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2665 Diags.Report(diag::err_drv_invalid_value) 2666 << A->getAsString(Args) << A->getValue(); 2667 } 2668 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2669 } 2670 2671 if (Args.hasArg(OPT_fgnu89_inline)) { 2672 if (Opts.CPlusPlus) 2673 Diags.Report(diag::err_drv_argument_not_allowed_with) 2674 << "-fgnu89-inline" << GetInputKindName(IK); 2675 else 2676 Opts.GNUInline = 1; 2677 } 2678 2679 if (Args.hasArg(OPT_fapple_kext)) { 2680 if (!Opts.CPlusPlus) 2681 Diags.Report(diag::warn_c_kext); 2682 else 2683 Opts.AppleKext = 1; 2684 } 2685 2686 if (Args.hasArg(OPT_print_ivar_layout)) 2687 Opts.ObjCGCBitmapPrint = 1; 2688 2689 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2690 Opts.NoConstantCFStrings = 1; 2691 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2692 Opts.CFRuntime = 2693 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2694 .Cases("unspecified", "standalone", "objc", 2695 LangOptions::CoreFoundationABI::ObjectiveC) 2696 .Cases("swift", "swift-5.0", 2697 LangOptions::CoreFoundationABI::Swift5_0) 2698 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2699 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2700 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2701 2702 if (Args.hasArg(OPT_fzvector)) 2703 Opts.ZVector = 1; 2704 2705 if (Args.hasArg(OPT_pthread)) 2706 Opts.POSIXThreads = 1; 2707 2708 // The value-visibility mode defaults to "default". 2709 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2710 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2711 } else { 2712 Opts.setValueVisibilityMode(DefaultVisibility); 2713 } 2714 2715 // The type-visibility mode defaults to the value-visibility mode. 2716 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2717 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2718 } else { 2719 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2720 } 2721 2722 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2723 Opts.InlineVisibilityHidden = 1; 2724 2725 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2726 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2727 2728 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2729 Opts.SetVisibilityForExternDecls = 1; 2730 2731 if (Args.hasArg(OPT_ftrapv)) { 2732 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2733 // Set the handler, if one is specified. 2734 Opts.OverflowHandler = 2735 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2736 } 2737 else if (Args.hasArg(OPT_fwrapv)) 2738 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2739 2740 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2741 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2742 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2743 Opts.MSCompatibilityVersion = 0; 2744 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2745 VersionTuple VT; 2746 if (VT.tryParse(A->getValue())) 2747 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2748 << A->getValue(); 2749 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2750 VT.getMinor().getValueOr(0) * 100000 + 2751 VT.getSubminor().getValueOr(0); 2752 } 2753 2754 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2755 // is specified, or -std is set to a conforming mode. 2756 // Trigraphs are disabled by default in c++1z onwards. 2757 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2758 Opts.Trigraphs = 2759 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2760 2761 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2762 OPT_fno_dollars_in_identifiers, 2763 Opts.DollarIdents); 2764 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2765 Opts.setVtorDispMode( 2766 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2767 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2768 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2769 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2770 Opts.ConstStrings); 2771 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2772 using LaxKind = LangOptions::LaxVectorConversionKind; 2773 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2774 .Case("none", LaxKind::None) 2775 .Case("integer", LaxKind::Integer) 2776 .Case("all", LaxKind::All) 2777 .Default(llvm::None)) 2778 Opts.setLaxVectorConversions(*Kind); 2779 else 2780 Diags.Report(diag::err_drv_invalid_value) 2781 << A->getAsString(Args) << A->getValue(); 2782 } 2783 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2784 Opts.ThreadsafeStatics = 0; 2785 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2786 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2787 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2788 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2789 2790 // -ffixed-point 2791 Opts.FixedPoint = 2792 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2793 !Opts.CPlusPlus; 2794 Opts.PaddingOnUnsignedFixedPoint = 2795 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2796 OPT_fno_padding_on_unsigned_fixed_point, 2797 /*Default=*/false) && 2798 Opts.FixedPoint; 2799 2800 // Handle exception personalities 2801 Arg *A = Args.getLastArg( 2802 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2803 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2804 if (A) { 2805 const Option &Opt = A->getOption(); 2806 llvm::Triple T(TargetOpts.Triple); 2807 if (T.isWindowsMSVCEnvironment()) 2808 Diags.Report(diag::err_fe_invalid_exception_model) 2809 << Opt.getName() << T.str(); 2810 2811 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2812 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2813 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2814 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2815 } 2816 2817 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2818 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2819 2820 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2821 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2822 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2823 && Opts.OpenCLVersion == 200); 2824 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2825 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2826 2827 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2828 Args.hasArg(OPT_fconvergent_functions); 2829 2830 Opts.DoubleSquareBracketAttributes = 2831 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2832 OPT_fno_double_square_bracket_attributes, 2833 Opts.DoubleSquareBracketAttributes); 2834 2835 Opts.CPlusPlusModules = Opts.CPlusPlus2a; 2836 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2837 Opts.Modules = 2838 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2839 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2840 Opts.ModulesDeclUse = 2841 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2842 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2843 // enter a different module (eg, when building a header unit). 2844 Opts.ModulesLocalVisibility = 2845 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2846 Opts.CPlusPlusModules; 2847 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2848 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2849 Opts.ModulesSearchAll = Opts.Modules && 2850 !Args.hasArg(OPT_fno_modules_search_all) && 2851 Args.hasArg(OPT_fmodules_search_all); 2852 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2853 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2854 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2855 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2856 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2857 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2858 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2859 .Case("char", 1) 2860 .Case("short", 2) 2861 .Case("int", 4) 2862 .Default(0); 2863 if (Opts.WCharSize == 0) 2864 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2865 } 2866 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2867 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2868 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2869 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2870 if (!Opts.NoBuiltin) 2871 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2872 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2873 Opts.RelaxedTemplateTemplateArgs = 2874 Args.hasArg(OPT_frelaxed_template_template_args); 2875 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2876 Opts.AlignedAllocation = 2877 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2878 Opts.AlignedAllocation); 2879 Opts.AlignedAllocationUnavailable = 2880 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2881 Opts.NewAlignOverride = 2882 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2883 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2884 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2885 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2886 << A->getValue(); 2887 Opts.NewAlignOverride = 0; 2888 } 2889 Opts.ConceptSatisfactionCaching = 2890 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2891 if (Args.hasArg(OPT_fconcepts_ts)) 2892 Diags.Report(diag::warn_fe_concepts_ts_flag); 2893 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2894 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2895 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2896 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2897 Opts.InstantiationDepth = 2898 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2899 Opts.ArrowDepth = 2900 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2901 Opts.ConstexprCallDepth = 2902 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2903 Opts.ConstexprStepLimit = 2904 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2905 Opts.EnableNewConstInterp = 2906 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2907 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2908 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2909 Opts.NumLargeByValueCopy = 2910 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2911 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2912 Opts.ObjCConstantStringClass = 2913 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2914 Opts.ObjCDefaultSynthProperties = 2915 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2916 Opts.EncodeExtendedBlockSig = 2917 Args.hasArg(OPT_fencode_extended_block_signature); 2918 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2919 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2920 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2921 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2922 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2923 ? 128 2924 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2925 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2926 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2927 Opts.ROPI = Args.hasArg(OPT_fropi); 2928 Opts.RWPI = Args.hasArg(OPT_frwpi); 2929 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2930 Opts.Static = Args.hasArg(OPT_static_define); 2931 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2932 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2933 || Args.hasArg(OPT_fdump_record_layouts); 2934 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2935 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2936 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2937 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2938 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2939 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2940 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2941 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2942 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2943 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2944 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2945 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2946 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 2947 Opts.CurrentModule = Opts.ModuleName; 2948 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2949 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2950 llvm::sort(Opts.ModuleFeatures); 2951 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2952 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2953 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2954 // is enabled. 2955 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2956 | Opts.NativeHalfArgsAndReturns; 2957 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2958 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2959 2960 // __declspec is enabled by default for the PS4 by the driver, and also 2961 // enabled for Microsoft Extensions or Borland Extensions, here. 2962 // 2963 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2964 // CUDA extension. However, it is required for supporting 2965 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2966 // been rewritten in terms of something more generic, remove the Opts.CUDA 2967 // term here. 2968 Opts.DeclSpecKeyword = 2969 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2970 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2971 2972 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2973 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2974 .Case("target", LangOptions::ASMM_Target) 2975 .Case("no", LangOptions::ASMM_Off) 2976 .Case("yes", LangOptions::ASMM_On) 2977 .Default(255)) { 2978 default: 2979 Diags.Report(diag::err_drv_invalid_value) 2980 << "-faddress-space-map-mangling=" << A->getValue(); 2981 break; 2982 case LangOptions::ASMM_Target: 2983 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2984 break; 2985 case LangOptions::ASMM_On: 2986 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2987 break; 2988 case LangOptions::ASMM_Off: 2989 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2990 break; 2991 } 2992 } 2993 2994 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2995 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2996 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2997 A->getValue()) 2998 .Case("single", 2999 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3000 .Case("multiple", 3001 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3002 .Case("virtual", 3003 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3004 .Default(LangOptions::PPTMK_BestCase); 3005 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3006 Diags.Report(diag::err_drv_invalid_value) 3007 << "-fms-memptr-rep=" << A->getValue(); 3008 3009 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3010 } 3011 3012 // Check for MS default calling conventions being specified. 3013 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3014 LangOptions::DefaultCallingConvention DefaultCC = 3015 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3016 .Case("cdecl", LangOptions::DCC_CDecl) 3017 .Case("fastcall", LangOptions::DCC_FastCall) 3018 .Case("stdcall", LangOptions::DCC_StdCall) 3019 .Case("vectorcall", LangOptions::DCC_VectorCall) 3020 .Case("regcall", LangOptions::DCC_RegCall) 3021 .Default(LangOptions::DCC_None); 3022 if (DefaultCC == LangOptions::DCC_None) 3023 Diags.Report(diag::err_drv_invalid_value) 3024 << "-fdefault-calling-conv=" << A->getValue(); 3025 3026 llvm::Triple T(TargetOpts.Triple); 3027 llvm::Triple::ArchType Arch = T.getArch(); 3028 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3029 DefaultCC == LangOptions::DCC_StdCall) && 3030 Arch != llvm::Triple::x86; 3031 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3032 DefaultCC == LangOptions::DCC_RegCall) && 3033 !T.isX86(); 3034 if (emitError) 3035 Diags.Report(diag::err_drv_argument_not_allowed_with) 3036 << A->getSpelling() << T.getTriple(); 3037 else 3038 Opts.setDefaultCallingConv(DefaultCC); 3039 } 3040 3041 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3042 3043 // -mrtd option 3044 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3045 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3046 Diags.Report(diag::err_drv_argument_not_allowed_with) 3047 << A->getSpelling() << "-fdefault-calling-conv"; 3048 else { 3049 llvm::Triple T(TargetOpts.Triple); 3050 if (T.getArch() != llvm::Triple::x86) 3051 Diags.Report(diag::err_drv_argument_not_allowed_with) 3052 << A->getSpelling() << T.getTriple(); 3053 else 3054 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3055 } 3056 } 3057 3058 // Check if -fopenmp is specified and set default version to 4.5. 3059 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 45 : 0; 3060 // Check if -fopenmp-simd is specified. 3061 bool IsSimdSpecified = 3062 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3063 /*Default=*/false); 3064 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3065 Opts.OpenMPUseTLS = 3066 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3067 Opts.OpenMPIsDevice = 3068 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3069 Opts.OpenMPIRBuilder = 3070 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3071 bool IsTargetSpecified = 3072 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3073 3074 if (Opts.OpenMP || Opts.OpenMPSimd) { 3075 if (int Version = getLastArgIntValue( 3076 Args, OPT_fopenmp_version_EQ, 3077 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 3078 Opts.OpenMP = Version; 3079 else if (IsSimdSpecified || IsTargetSpecified) 3080 Opts.OpenMP = 45; 3081 // Provide diagnostic when a given target is not expected to be an OpenMP 3082 // device or host. 3083 if (!Opts.OpenMPIsDevice) { 3084 switch (T.getArch()) { 3085 default: 3086 break; 3087 // Add unsupported host targets here: 3088 case llvm::Triple::nvptx: 3089 case llvm::Triple::nvptx64: 3090 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3091 << TargetOpts.Triple; 3092 break; 3093 } 3094 } 3095 } 3096 3097 // Set the flag to prevent the implementation from emitting device exception 3098 // handling code for those requiring so. 3099 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 3100 Opts.Exceptions = 0; 3101 Opts.CXXExceptions = 0; 3102 } 3103 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3104 Opts.OpenMPCUDANumSMs = 3105 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3106 Opts.OpenMPCUDANumSMs, Diags); 3107 Opts.OpenMPCUDABlocksPerSM = 3108 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3109 Opts.OpenMPCUDABlocksPerSM, Diags); 3110 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3111 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3112 Opts.OpenMPCUDAReductionBufNum, Diags); 3113 } 3114 3115 // Prevent auto-widening the representation of loop counters during an 3116 // OpenMP collapse clause. 3117 Opts.OpenMPOptimisticCollapse = 3118 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3119 3120 // Get the OpenMP target triples if any. 3121 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3122 3123 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3124 llvm::Triple TT(A->getValue(i)); 3125 3126 if (TT.getArch() == llvm::Triple::UnknownArch || 3127 !(TT.getArch() == llvm::Triple::aarch64 || 3128 TT.getArch() == llvm::Triple::ppc || 3129 TT.getArch() == llvm::Triple::ppc64 || 3130 TT.getArch() == llvm::Triple::ppc64le || 3131 TT.getArch() == llvm::Triple::nvptx || 3132 TT.getArch() == llvm::Triple::nvptx64 || 3133 TT.getArch() == llvm::Triple::x86 || 3134 TT.getArch() == llvm::Triple::x86_64)) 3135 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3136 else 3137 Opts.OMPTargetTriples.push_back(TT); 3138 } 3139 } 3140 3141 // Get OpenMP host file path if any and report if a non existent file is 3142 // found 3143 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3144 Opts.OMPHostIRFile = A->getValue(); 3145 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3146 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3147 << Opts.OMPHostIRFile; 3148 } 3149 3150 Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device); 3151 3152 // Set CUDA mode for OpenMP target NVPTX if specified in options 3153 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 3154 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3155 3156 // Set CUDA mode for OpenMP target NVPTX if specified in options 3157 Opts.OpenMPCUDAForceFullRuntime = 3158 Opts.OpenMPIsDevice && T.isNVPTX() && 3159 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3160 3161 // Record whether the __DEPRECATED define was requested. 3162 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3163 OPT_fno_deprecated_macro, 3164 Opts.Deprecated); 3165 3166 // FIXME: Eliminate this dependency. 3167 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3168 OptSize = getOptimizationLevelSize(Args); 3169 Opts.Optimize = Opt != 0; 3170 Opts.OptimizeSize = OptSize != 0; 3171 3172 // This is the __NO_INLINE__ define, which just depends on things like the 3173 // optimization level and -fno-inline, not actually whether the backend has 3174 // inlining enabled. 3175 Opts.NoInlineDefine = !Opts.Optimize; 3176 if (Arg *InlineArg = Args.getLastArg( 3177 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3178 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3179 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3180 Opts.NoInlineDefine = true; 3181 3182 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 3183 Args.hasArg(OPT_cl_fast_relaxed_math); 3184 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3185 Args.hasArg(OPT_cl_finite_math_only) || 3186 Args.hasArg(OPT_cl_fast_relaxed_math); 3187 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3188 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3189 Args.hasArg(OPT_cl_fast_relaxed_math); 3190 3191 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3192 StringRef Val = A->getValue(); 3193 if (Val == "fast") 3194 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 3195 else if (Val == "on") 3196 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 3197 else if (Val == "off") 3198 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 3199 else 3200 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3201 } 3202 3203 LangOptions::FPRoundingModeKind FPRM = LangOptions::FPR_ToNearest; 3204 if (Args.hasArg(OPT_frounding_math)) { 3205 FPRM = LangOptions::FPR_Dynamic; 3206 } 3207 Opts.setFPRoundingMode(FPRM); 3208 3209 if (Args.hasArg(OPT_ftrapping_math)) { 3210 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3211 } 3212 3213 if (Args.hasArg(OPT_fno_trapping_math)) { 3214 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3215 } 3216 3217 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3218 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3219 StringRef Val = A->getValue(); 3220 if (Val.equals("ignore")) 3221 FPEB = LangOptions::FPE_Ignore; 3222 else if (Val.equals("maytrap")) 3223 FPEB = LangOptions::FPE_MayTrap; 3224 else if (Val.equals("strict")) 3225 FPEB = LangOptions::FPE_Strict; 3226 else 3227 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3228 } 3229 Opts.setFPExceptionMode(FPEB); 3230 3231 Opts.RetainCommentsFromSystemHeaders = 3232 Args.hasArg(OPT_fretain_comments_from_system_headers); 3233 3234 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3235 switch (SSP) { 3236 default: 3237 Diags.Report(diag::err_drv_invalid_value) 3238 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3239 break; 3240 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3241 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3242 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3243 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3244 } 3245 3246 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3247 StringRef Val = A->getValue(); 3248 if (Val == "uninitialized") 3249 Opts.setTrivialAutoVarInit( 3250 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3251 else if (Val == "zero") 3252 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3253 else if (Val == "pattern") 3254 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3255 else 3256 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3257 } 3258 3259 // Parse -fsanitize= arguments. 3260 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3261 Diags, Opts.Sanitize); 3262 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3263 Opts.SanitizeAddressFieldPadding = 3264 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3265 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3266 std::vector<std::string> systemBlacklists = 3267 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3268 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3269 systemBlacklists.begin(), 3270 systemBlacklists.end()); 3271 3272 // -fxray-instrument 3273 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3274 Opts.XRayAlwaysEmitCustomEvents = 3275 Args.hasArg(OPT_fxray_always_emit_customevents); 3276 Opts.XRayAlwaysEmitTypedEvents = 3277 Args.hasArg(OPT_fxray_always_emit_typedevents); 3278 3279 // -fxray-{always,never}-instrument= filenames. 3280 Opts.XRayAlwaysInstrumentFiles = 3281 Args.getAllArgValues(OPT_fxray_always_instrument); 3282 Opts.XRayNeverInstrumentFiles = 3283 Args.getAllArgValues(OPT_fxray_never_instrument); 3284 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3285 3286 // -fforce-emit-vtables 3287 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3288 3289 // -fallow-editor-placeholders 3290 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3291 3292 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3293 3294 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3295 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3296 3297 StringRef Ver = A->getValue(); 3298 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3299 unsigned Major, Minor = 0; 3300 3301 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3302 // y or y.0 (4 <= y <= current version). 3303 if (!VerParts.first.startswith("0") && 3304 !VerParts.first.getAsInteger(10, Major) && 3305 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3306 (Major == 3 ? VerParts.second.size() == 1 && 3307 !VerParts.second.getAsInteger(10, Minor) 3308 : VerParts.first.size() == Ver.size() || 3309 VerParts.second == "0")) { 3310 // Got a valid version number. 3311 if (Major == 3 && Minor <= 8) 3312 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3313 else if (Major <= 4) 3314 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3315 else if (Major <= 6) 3316 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3317 else if (Major <= 7) 3318 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3319 else if (Major <= 9) 3320 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3321 } else if (Ver != "latest") { 3322 Diags.Report(diag::err_drv_invalid_value) 3323 << A->getAsString(Args) << A->getValue(); 3324 } 3325 } 3326 3327 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3328 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3329 3330 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3331 } 3332 3333 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3334 switch (Action) { 3335 case frontend::ASTDeclList: 3336 case frontend::ASTDump: 3337 case frontend::ASTPrint: 3338 case frontend::ASTView: 3339 case frontend::EmitAssembly: 3340 case frontend::EmitBC: 3341 case frontend::EmitHTML: 3342 case frontend::EmitLLVM: 3343 case frontend::EmitLLVMOnly: 3344 case frontend::EmitCodeGenOnly: 3345 case frontend::EmitObj: 3346 case frontend::FixIt: 3347 case frontend::GenerateModule: 3348 case frontend::GenerateModuleInterface: 3349 case frontend::GenerateHeaderModule: 3350 case frontend::GeneratePCH: 3351 case frontend::GenerateInterfaceIfsExpV1: 3352 case frontend::ParseSyntaxOnly: 3353 case frontend::ModuleFileInfo: 3354 case frontend::VerifyPCH: 3355 case frontend::PluginAction: 3356 case frontend::RewriteObjC: 3357 case frontend::RewriteTest: 3358 case frontend::RunAnalysis: 3359 case frontend::TemplightDump: 3360 case frontend::MigrateSource: 3361 return false; 3362 3363 case frontend::DumpCompilerOptions: 3364 case frontend::DumpRawTokens: 3365 case frontend::DumpTokens: 3366 case frontend::InitOnly: 3367 case frontend::PrintPreamble: 3368 case frontend::PrintPreprocessedInput: 3369 case frontend::RewriteMacros: 3370 case frontend::RunPreprocessorOnly: 3371 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3372 return true; 3373 } 3374 llvm_unreachable("invalid frontend action"); 3375 } 3376 3377 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3378 DiagnosticsEngine &Diags, 3379 frontend::ActionKind Action) { 3380 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3381 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3382 Args.hasArg(OPT_pch_through_hdrstop_use); 3383 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3384 Opts.PCHThroughHeader = 3385 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3386 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3387 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3388 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3389 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3390 3391 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3392 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3393 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3394 3395 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3396 auto Split = StringRef(A).split('='); 3397 Opts.MacroPrefixMap.insert( 3398 {std::string(Split.first), std::string(Split.second)}); 3399 } 3400 3401 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3402 StringRef Value(A->getValue()); 3403 size_t Comma = Value.find(','); 3404 unsigned Bytes = 0; 3405 unsigned EndOfLine = 0; 3406 3407 if (Comma == StringRef::npos || 3408 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3409 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3410 Diags.Report(diag::err_drv_preamble_format); 3411 else { 3412 Opts.PrecompiledPreambleBytes.first = Bytes; 3413 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3414 } 3415 } 3416 3417 // Add the __CET__ macro if a CFProtection option is set. 3418 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3419 StringRef Name = A->getValue(); 3420 if (Name == "branch") 3421 Opts.addMacroDef("__CET__=1"); 3422 else if (Name == "return") 3423 Opts.addMacroDef("__CET__=2"); 3424 else if (Name == "full") 3425 Opts.addMacroDef("__CET__=3"); 3426 } 3427 3428 // Add macros from the command line. 3429 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3430 if (A->getOption().matches(OPT_D)) 3431 Opts.addMacroDef(A->getValue()); 3432 else 3433 Opts.addMacroUndef(A->getValue()); 3434 } 3435 3436 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3437 3438 // Add the ordered list of -includes. 3439 for (const auto *A : Args.filtered(OPT_include)) 3440 Opts.Includes.emplace_back(A->getValue()); 3441 3442 for (const auto *A : Args.filtered(OPT_chain_include)) 3443 Opts.ChainedIncludes.emplace_back(A->getValue()); 3444 3445 for (const auto *A : Args.filtered(OPT_remap_file)) { 3446 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3447 3448 if (Split.second.empty()) { 3449 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3450 continue; 3451 } 3452 3453 Opts.addRemappedFile(Split.first, Split.second); 3454 } 3455 3456 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3457 StringRef Name = A->getValue(); 3458 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3459 .Case("libc++", ARCXX_libcxx) 3460 .Case("libstdc++", ARCXX_libstdcxx) 3461 .Case("none", ARCXX_nolib) 3462 .Default(~0U); 3463 if (Library == ~0U) 3464 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3465 else 3466 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3467 } 3468 3469 // Always avoid lexing editor placeholders when we're just running the 3470 // preprocessor as we never want to emit the 3471 // "editor placeholder in source file" error in PP only mode. 3472 if (isStrictlyPreprocessorAction(Action)) 3473 Opts.LexEditorPlaceholders = false; 3474 3475 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3476 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3477 } 3478 3479 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3480 ArgList &Args, 3481 frontend::ActionKind Action) { 3482 if (isStrictlyPreprocessorAction(Action)) 3483 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3484 else 3485 Opts.ShowCPP = 0; 3486 3487 Opts.ShowComments = Args.hasArg(OPT_C); 3488 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3489 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3490 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3491 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3492 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3493 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3494 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3495 } 3496 3497 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3498 DiagnosticsEngine &Diags) { 3499 Opts.CodeModel = std::string(getCodeModel(Args, Diags)); 3500 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3501 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3502 StringRef Value = A->getValue(); 3503 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3504 .Case("default", llvm::EABI::Default) 3505 .Case("4", llvm::EABI::EABI4) 3506 .Case("5", llvm::EABI::EABI5) 3507 .Case("gnu", llvm::EABI::GNU) 3508 .Default(llvm::EABI::Unknown); 3509 if (EABIVersion == llvm::EABI::Unknown) 3510 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3511 << Value; 3512 else 3513 Opts.EABIVersion = EABIVersion; 3514 } 3515 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3516 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3517 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3518 Opts.LinkerVersion = 3519 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3520 Opts.Triple = std::string(Args.getLastArgValue(OPT_triple)); 3521 // Use the default target triple if unspecified. 3522 if (Opts.Triple.empty()) 3523 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3524 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3525 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3526 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3527 Opts.NVPTXUseShortPointers = Args.hasFlag( 3528 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3529 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3530 llvm::VersionTuple Version; 3531 if (Version.tryParse(A->getValue())) 3532 Diags.Report(diag::err_drv_invalid_value) 3533 << A->getAsString(Args) << A->getValue(); 3534 else 3535 Opts.SDKVersion = Version; 3536 } 3537 } 3538 3539 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3540 ArrayRef<const char *> CommandLineArgs, 3541 DiagnosticsEngine &Diags) { 3542 bool Success = true; 3543 3544 // Parse the arguments. 3545 const OptTable &Opts = getDriverOptTable(); 3546 const unsigned IncludedFlagsBitmask = options::CC1Option; 3547 unsigned MissingArgIndex, MissingArgCount; 3548 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3549 MissingArgCount, IncludedFlagsBitmask); 3550 LangOptions &LangOpts = *Res.getLangOpts(); 3551 3552 // Check for missing argument error. 3553 if (MissingArgCount) { 3554 Diags.Report(diag::err_drv_missing_argument) 3555 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3556 Success = false; 3557 } 3558 3559 // Issue errors on unknown arguments. 3560 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3561 auto ArgString = A->getAsString(Args); 3562 std::string Nearest; 3563 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3564 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3565 else 3566 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3567 << ArgString << Nearest; 3568 Success = false; 3569 } 3570 3571 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3572 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3573 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3574 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3575 Res.getDependencyOutputOpts().Targets.empty()) { 3576 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3577 Success = false; 3578 } 3579 Success &= 3580 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3581 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3582 ParseCommentArgs(LangOpts.CommentOpts, Args); 3583 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3584 // FIXME: We shouldn't have to pass the DashX option around here 3585 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3586 LangOpts.IsHeaderFile); 3587 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3588 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3589 Res.getTargetOpts(), Res.getFrontendOpts()); 3590 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3591 Res.getFileSystemOpts().WorkingDir); 3592 llvm::Triple T(Res.getTargetOpts().Triple); 3593 if (DashX.getFormat() == InputKind::Precompiled || 3594 DashX.getLanguage() == Language::LLVM_IR) { 3595 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3596 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3597 // what the input type is. 3598 if (Args.hasArg(OPT_fobjc_arc)) 3599 LangOpts.ObjCAutoRefCount = 1; 3600 // PIClevel and PIELevel are needed during code generation and this should be 3601 // set regardless of the input type. 3602 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3603 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3604 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3605 Diags, LangOpts.Sanitize); 3606 } else { 3607 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3608 // FIXME: Should we really be calling this for an Language::Asm input? 3609 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3610 Res.getPreprocessorOpts(), Diags); 3611 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3612 LangOpts.ObjCExceptions = 1; 3613 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3614 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3615 // preprocessed input as we don't expect it to be used with -std=libc++ 3616 // anyway. 3617 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3618 } 3619 } 3620 3621 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3622 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3623 3624 LangOpts.FunctionAlignment = 3625 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3626 3627 if (LangOpts.CUDA) { 3628 // During CUDA device-side compilation, the aux triple is the 3629 // triple used for host compilation. 3630 if (LangOpts.CUDAIsDevice) 3631 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3632 } 3633 3634 // Set the triple of the host for OpenMP device compile. 3635 if (LangOpts.OpenMPIsDevice) 3636 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3637 3638 // FIXME: Override value name discarding when asan or msan is used because the 3639 // backend passes depend on the name of the alloca in order to print out 3640 // names. 3641 Res.getCodeGenOpts().DiscardValueNames &= 3642 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3643 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3644 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3645 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3646 3647 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3648 Res.getFrontendOpts().ProgramAction); 3649 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3650 Res.getFrontendOpts().ProgramAction); 3651 3652 // Turn on -Wspir-compat for SPIR target. 3653 if (T.isSPIR()) 3654 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3655 3656 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3657 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3658 !Res.getLangOpts()->Sanitize.empty()) { 3659 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3660 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3661 } 3662 return Success; 3663 } 3664 3665 std::string CompilerInvocation::getModuleHash() const { 3666 // Note: For QoI reasons, the things we use as a hash here should all be 3667 // dumped via the -module-info flag. 3668 using llvm::hash_code; 3669 using llvm::hash_value; 3670 using llvm::hash_combine; 3671 using llvm::hash_combine_range; 3672 3673 // Start the signature with the compiler version. 3674 // FIXME: We'd rather use something more cryptographically sound than 3675 // CityHash, but this will do for now. 3676 hash_code code = hash_value(getClangFullRepositoryVersion()); 3677 3678 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3679 // and getClangFullRepositoryVersion() doesn't include git revision. 3680 code = hash_combine(code, serialization::VERSION_MAJOR, 3681 serialization::VERSION_MINOR); 3682 3683 // Extend the signature with the language options 3684 #define LANGOPT(Name, Bits, Default, Description) \ 3685 code = hash_combine(code, LangOpts->Name); 3686 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3687 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3688 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3689 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3690 #include "clang/Basic/LangOptions.def" 3691 3692 for (StringRef Feature : LangOpts->ModuleFeatures) 3693 code = hash_combine(code, Feature); 3694 3695 // Extend the signature with the target options. 3696 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3697 TargetOpts->ABI); 3698 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3699 code = hash_combine(code, FeatureAsWritten); 3700 3701 // Extend the signature with preprocessor options. 3702 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3703 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3704 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3705 3706 for (const auto &I : getPreprocessorOpts().Macros) { 3707 // If we're supposed to ignore this macro for the purposes of modules, 3708 // don't put it into the hash. 3709 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3710 // Check whether we're ignoring this macro. 3711 StringRef MacroDef = I.first; 3712 if (hsOpts.ModulesIgnoreMacros.count( 3713 llvm::CachedHashString(MacroDef.split('=').first))) 3714 continue; 3715 } 3716 3717 code = hash_combine(code, I.first, I.second); 3718 } 3719 3720 // Extend the signature with the sysroot and other header search options. 3721 code = hash_combine(code, hsOpts.Sysroot, 3722 hsOpts.ModuleFormat, 3723 hsOpts.UseDebugInfo, 3724 hsOpts.UseBuiltinIncludes, 3725 hsOpts.UseStandardSystemIncludes, 3726 hsOpts.UseStandardCXXIncludes, 3727 hsOpts.UseLibcxx, 3728 hsOpts.ModulesValidateDiagnosticOptions); 3729 code = hash_combine(code, hsOpts.ResourceDir); 3730 3731 if (hsOpts.ModulesStrictContextHash) { 3732 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3733 hsOpts.SystemHeaderPrefixes.end()); 3734 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3735 hsOpts.UserEntries.end()); 3736 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3737 hsOpts.UserEntries.size(), UEC); 3738 3739 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3740 #define DIAGOPT(Name, Bits, Default) \ 3741 code = hash_combine(code, diagOpts.Name); 3742 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3743 code = hash_combine(code, diagOpts.get##Name()); 3744 #include "clang/Basic/DiagnosticOptions.def" 3745 #undef DIAGOPT 3746 #undef ENUM_DIAGOPT 3747 } 3748 3749 // Extend the signature with the user build path. 3750 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3751 3752 // Extend the signature with the module file extensions. 3753 const FrontendOptions &frontendOpts = getFrontendOpts(); 3754 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3755 code = ext->hashExtension(code); 3756 } 3757 3758 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3759 // affects the debug info in the PCM. 3760 if (getCodeGenOpts().DebugTypeExtRefs) 3761 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3762 code = hash_combine(code, KeyValue.first, KeyValue.second); 3763 3764 // Extend the signature with the enabled sanitizers, if at least one is 3765 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3766 SanitizerSet SanHash = LangOpts->Sanitize; 3767 SanHash.clear(getPPTransparentSanitizers()); 3768 if (!SanHash.empty()) 3769 code = hash_combine(code, SanHash.Mask); 3770 3771 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3772 } 3773 3774 namespace clang { 3775 3776 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3777 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3778 DiagnosticsEngine &Diags) { 3779 return createVFSFromCompilerInvocation(CI, Diags, 3780 llvm::vfs::getRealFileSystem()); 3781 } 3782 3783 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3784 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3785 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3786 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3787 return BaseFS; 3788 3789 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3790 // earlier vfs files are on the bottom 3791 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3792 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3793 Result->getBufferForFile(File); 3794 if (!Buffer) { 3795 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3796 continue; 3797 } 3798 3799 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3800 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3801 /*DiagContext*/ nullptr, Result); 3802 if (!FS) { 3803 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3804 continue; 3805 } 3806 3807 Result = FS; 3808 } 3809 return Result; 3810 } 3811 3812 } // namespace clang 3813