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