1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Frontend/CompilerInvocation.h" 11 #include "TestModuleFileExtension.h" 12 #include "clang/Basic/Builtins.h" 13 #include "clang/Basic/CharInfo.h" 14 #include "clang/Basic/CodeGenOptions.h" 15 #include "clang/Basic/CommentOptions.h" 16 #include "clang/Basic/DebugInfoOptions.h" 17 #include "clang/Basic/Diagnostic.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.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/DriverDiagnostic.h" 31 #include "clang/Driver/Options.h" 32 #include "clang/Frontend/CommandLineSourceLoc.h" 33 #include "clang/Frontend/DependencyOutputOptions.h" 34 #include "clang/Frontend/FrontendDiagnostic.h" 35 #include "clang/Frontend/FrontendOptions.h" 36 #include "clang/Frontend/FrontendPluginRegistry.h" 37 #include "clang/Frontend/LangStandard.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() == InputKind::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.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 289 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 290 Opts.ShouldEmitErrorsOnInvalidConfigValue = 291 /* negated */!llvm::StringSwitch<bool>( 292 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 293 .Case("true", true) 294 .Case("false", false) 295 .Default(false); 296 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 297 298 Opts.visualizeExplodedGraphWithGraphViz = 299 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 300 Opts.DumpExplodedGraphTo = Args.getLastArgValue(OPT_analyzer_dump_egraph); 301 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 302 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 303 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 304 Opts.AnalyzeNestedBlocks = 305 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 306 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 307 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 308 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 309 Opts.maxBlockVisitOnPath = 310 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 311 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 312 Opts.InlineMaxStackDepth = 313 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 314 Opts.InlineMaxStackDepth, Diags); 315 316 Opts.CheckersControlList.clear(); 317 for (const Arg *A : 318 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 319 A->claim(); 320 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 321 // We can have a list of comma separated checker names, e.g: 322 // '-analyzer-checker=cocoa,unix' 323 StringRef checkerList = A->getValue(); 324 SmallVector<StringRef, 4> checkers; 325 checkerList.split(checkers, ","); 326 for (auto checker : checkers) 327 Opts.CheckersControlList.emplace_back(checker, enable); 328 } 329 330 // Go through the analyzer configuration options. 331 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 332 333 // We can have a list of comma separated config names, e.g: 334 // '-analyzer-config key1=val1,key2=val2' 335 StringRef configList = A->getValue(); 336 SmallVector<StringRef, 4> configVals; 337 configList.split(configVals, ","); 338 for (const auto &configVal : configVals) { 339 StringRef key, val; 340 std::tie(key, val) = configVal.split("="); 341 if (val.empty()) { 342 Diags.Report(SourceLocation(), 343 diag::err_analyzer_config_no_value) << configVal; 344 Success = false; 345 break; 346 } 347 if (val.find('=') != StringRef::npos) { 348 Diags.Report(SourceLocation(), 349 diag::err_analyzer_config_multiple_values) 350 << configVal; 351 Success = false; 352 break; 353 } 354 355 // TODO: Check checker options too, possibly in CheckerRegistry. 356 // Leave unknown non-checker configs unclaimed. 357 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 358 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 359 Diags.Report(diag::err_analyzer_config_unknown) << key; 360 continue; 361 } 362 363 A->claim(); 364 Opts.Config[key] = val; 365 } 366 } 367 368 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 369 parseAnalyzerConfigs(Opts, &Diags); 370 else 371 parseAnalyzerConfigs(Opts, nullptr); 372 373 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 374 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 375 if (i != 0) 376 os << " "; 377 os << Args.getArgString(i); 378 } 379 os.flush(); 380 381 return Success; 382 } 383 384 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 385 StringRef OptionName, StringRef DefaultVal) { 386 return Config.insert({OptionName, DefaultVal}).first->second; 387 } 388 389 static void initOption(AnalyzerOptions::ConfigTable &Config, 390 DiagnosticsEngine *Diags, 391 StringRef &OptionField, StringRef Name, 392 StringRef DefaultVal) { 393 // String options may be known to invalid (e.g. if the expected string is a 394 // file name, but the file does not exist), those will have to be checked in 395 // parseConfigs. 396 OptionField = getStringOption(Config, Name, DefaultVal); 397 } 398 399 static void initOption(AnalyzerOptions::ConfigTable &Config, 400 DiagnosticsEngine *Diags, 401 bool &OptionField, StringRef Name, bool DefaultVal) { 402 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 403 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 404 .Case("true", true) 405 .Case("false", false) 406 .Default(None); 407 408 if (!PossiblyInvalidVal) { 409 if (Diags) 410 Diags->Report(diag::err_analyzer_config_invalid_input) 411 << Name << "a boolean"; 412 else 413 OptionField = DefaultVal; 414 } else 415 OptionField = PossiblyInvalidVal.getValue(); 416 } 417 418 static void initOption(AnalyzerOptions::ConfigTable &Config, 419 DiagnosticsEngine *Diags, 420 unsigned &OptionField, StringRef Name, 421 unsigned DefaultVal) { 422 423 OptionField = DefaultVal; 424 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 425 .getAsInteger(10, OptionField); 426 if (Diags && HasFailed) 427 Diags->Report(diag::err_analyzer_config_invalid_input) 428 << Name << "an unsigned"; 429 } 430 431 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 432 DiagnosticsEngine *Diags) { 433 // TODO: There's no need to store the entire configtable, it'd be plenty 434 // enough tostore checker options. 435 436 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 437 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 438 439 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 440 SHALLOW_VAL, DEEP_VAL) \ 441 switch (AnOpts.getUserMode()) { \ 442 case UMK_Shallow: \ 443 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 444 break; \ 445 case UMK_Deep: \ 446 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 447 break; \ 448 } \ 449 450 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 451 #undef ANALYZER_OPTION 452 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 453 454 // At this point, AnalyzerOptions is configured. Let's validate some options. 455 456 if (!Diags) 457 return; 458 459 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 460 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 461 << "a filename"; 462 463 if (!AnOpts.ModelPath.empty() && 464 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 465 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 466 << "a filename"; 467 } 468 469 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 470 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 471 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 472 return true; 473 } 474 475 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 476 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 477 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 478 } 479 480 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 481 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 482 StringRef Value = A->getValue(); 483 if (Value == "small" || Value == "kernel" || Value == "medium" || 484 Value == "large" || Value == "tiny") 485 return Value; 486 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 487 } 488 return "default"; 489 } 490 491 static llvm::Reloc::Model getRelocModel(ArgList &Args, 492 DiagnosticsEngine &Diags) { 493 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 494 StringRef Value = A->getValue(); 495 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 496 .Case("static", llvm::Reloc::Static) 497 .Case("pic", llvm::Reloc::PIC_) 498 .Case("ropi", llvm::Reloc::ROPI) 499 .Case("rwpi", llvm::Reloc::RWPI) 500 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 501 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 502 .Default(None); 503 if (RM.hasValue()) 504 return *RM; 505 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 506 } 507 return llvm::Reloc::PIC_; 508 } 509 510 /// Create a new Regex instance out of the string value in \p RpassArg. 511 /// It returns a pointer to the newly generated Regex instance. 512 static std::shared_ptr<llvm::Regex> 513 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 514 Arg *RpassArg) { 515 StringRef Val = RpassArg->getValue(); 516 std::string RegexError; 517 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 518 if (!Pattern->isValid(RegexError)) { 519 Diags.Report(diag::err_drv_optimization_remark_pattern) 520 << RegexError << RpassArg->getAsString(Args); 521 Pattern.reset(); 522 } 523 return Pattern; 524 } 525 526 static bool parseDiagnosticLevelMask(StringRef FlagName, 527 const std::vector<std::string> &Levels, 528 DiagnosticsEngine *Diags, 529 DiagnosticLevelMask &M) { 530 bool Success = true; 531 for (const auto &Level : Levels) { 532 DiagnosticLevelMask const PM = 533 llvm::StringSwitch<DiagnosticLevelMask>(Level) 534 .Case("note", DiagnosticLevelMask::Note) 535 .Case("remark", DiagnosticLevelMask::Remark) 536 .Case("warning", DiagnosticLevelMask::Warning) 537 .Case("error", DiagnosticLevelMask::Error) 538 .Default(DiagnosticLevelMask::None); 539 if (PM == DiagnosticLevelMask::None) { 540 Success = false; 541 if (Diags) 542 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 543 } 544 M = M | PM; 545 } 546 return Success; 547 } 548 549 static void parseSanitizerKinds(StringRef FlagName, 550 const std::vector<std::string> &Sanitizers, 551 DiagnosticsEngine &Diags, SanitizerSet &S) { 552 for (const auto &Sanitizer : Sanitizers) { 553 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 554 if (K == 0) 555 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 556 else 557 S.set(K, true); 558 } 559 } 560 561 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 562 ArgList &Args, DiagnosticsEngine &D, 563 XRayInstrSet &S) { 564 llvm::SmallVector<StringRef, 2> BundleParts; 565 llvm::SplitString(Bundle, BundleParts, ","); 566 for (const auto B : BundleParts) { 567 auto Mask = parseXRayInstrValue(B); 568 if (Mask == XRayInstrKind::None) 569 if (B != "none") 570 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 571 else 572 S.Mask = Mask; 573 else if (Mask == XRayInstrKind::All) 574 S.Mask = Mask; 575 else 576 S.set(Mask, true); 577 } 578 } 579 580 // Set the profile kind for fprofile-instrument. 581 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 582 DiagnosticsEngine &Diags) { 583 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 584 if (A == nullptr) 585 return; 586 StringRef S = A->getValue(); 587 unsigned I = llvm::StringSwitch<unsigned>(S) 588 .Case("none", CodeGenOptions::ProfileNone) 589 .Case("clang", CodeGenOptions::ProfileClangInstr) 590 .Case("llvm", CodeGenOptions::ProfileIRInstr) 591 .Default(~0U); 592 if (I == ~0U) { 593 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 594 << S; 595 return; 596 } 597 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 598 Opts.setProfileInstr(Instrumentor); 599 } 600 601 // Set the profile kind using fprofile-instrument-use-path. 602 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 603 const Twine &ProfileName) { 604 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 605 // In error, return silently and let Clang PGOUse report the error message. 606 if (auto E = ReaderOrErr.takeError()) { 607 llvm::consumeError(std::move(E)); 608 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 609 return; 610 } 611 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 612 std::move(ReaderOrErr.get()); 613 if (PGOReader->isIRLevelProfile()) 614 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 615 else 616 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 617 } 618 619 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 620 DiagnosticsEngine &Diags, 621 const TargetOptions &TargetOpts, 622 const FrontendOptions &FrontendOpts) { 623 bool Success = true; 624 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 625 626 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 627 // TODO: This could be done in Driver 628 unsigned MaxOptLevel = 3; 629 if (OptimizationLevel > MaxOptLevel) { 630 // If the optimization level is not supported, fall back on the default 631 // optimization 632 Diags.Report(diag::warn_drv_optimization_value) 633 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 634 OptimizationLevel = MaxOptLevel; 635 } 636 Opts.OptimizationLevel = OptimizationLevel; 637 638 // At O0 we want to fully disable inlining outside of cases marked with 639 // 'alwaysinline' that are required for correctness. 640 Opts.setInlining((Opts.OptimizationLevel == 0) 641 ? CodeGenOptions::OnlyAlwaysInlining 642 : CodeGenOptions::NormalInlining); 643 // Explicit inlining flags can disable some or all inlining even at 644 // optimization levels above zero. 645 if (Arg *InlineArg = Args.getLastArg( 646 options::OPT_finline_functions, options::OPT_finline_hint_functions, 647 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 648 if (Opts.OptimizationLevel > 0) { 649 const Option &InlineOpt = InlineArg->getOption(); 650 if (InlineOpt.matches(options::OPT_finline_functions)) 651 Opts.setInlining(CodeGenOptions::NormalInlining); 652 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 653 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 654 else 655 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 656 } 657 } 658 659 Opts.ExperimentalNewPassManager = Args.hasFlag( 660 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 661 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 662 663 Opts.DebugPassManager = 664 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 665 /* Default */ false); 666 667 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 668 StringRef Name = A->getValue(); 669 if (Name == "Accelerate") 670 Opts.setVecLib(CodeGenOptions::Accelerate); 671 else if (Name == "SVML") 672 Opts.setVecLib(CodeGenOptions::SVML); 673 else if (Name == "none") 674 Opts.setVecLib(CodeGenOptions::NoLibrary); 675 else 676 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 677 } 678 679 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 680 unsigned Val = 681 llvm::StringSwitch<unsigned>(A->getValue()) 682 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 683 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 684 .Case("limited", codegenoptions::LimitedDebugInfo) 685 .Case("standalone", codegenoptions::FullDebugInfo) 686 .Default(~0U); 687 if (Val == ~0U) 688 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 689 << A->getValue(); 690 else 691 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 692 } 693 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 694 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 695 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 696 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 697 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 698 .Default(~0U); 699 if (Val == ~0U) 700 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 701 << A->getValue(); 702 else 703 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 704 } 705 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 706 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 707 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 708 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 709 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 710 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 711 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 712 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 713 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 714 715 if (Arg *A = 716 Args.getLastArg(OPT_enable_split_dwarf, OPT_enable_split_dwarf_EQ)) { 717 if (A->getOption().matches(options::OPT_enable_split_dwarf)) { 718 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 719 } else { 720 StringRef Name = A->getValue(); 721 if (Name == "single") 722 Opts.setSplitDwarfMode(CodeGenOptions::SingleFileFission); 723 else if (Name == "split") 724 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 725 else 726 Diags.Report(diag::err_drv_invalid_value) 727 << A->getAsString(Args) << Name; 728 } 729 } 730 731 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 732 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 733 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 734 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 735 736 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 737 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 738 739 if (const Arg *A = 740 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 741 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 742 743 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 744 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 745 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 746 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 747 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 748 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 749 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 750 OPT_fuse_register_sized_bitfield_access); 751 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 752 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 753 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 754 Args.hasArg(OPT_new_struct_path_tbaa); 755 Opts.FineGrainedBitfieldAccesses = 756 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 757 OPT_fno_fine_grained_bitfield_accesses, false); 758 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 759 Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line); 760 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 761 Opts.NoCommon = Args.hasArg(OPT_fno_common); 762 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 763 Opts.OptimizeSize = getOptimizationLevelSize(Args); 764 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 765 Args.hasArg(OPT_ffreestanding)); 766 if (Opts.SimplifyLibCalls) 767 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 768 Opts.UnrollLoops = 769 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 770 (Opts.OptimizationLevel > 1)); 771 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 772 773 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 774 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 775 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 776 Opts.DebugInfoForProfiling = Args.hasFlag( 777 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 778 Opts.DebugNameTable = static_cast<unsigned>( 779 Args.hasArg(OPT_ggnu_pubnames) 780 ? llvm::DICompileUnit::DebugNameTableKind::GNU 781 : Args.hasArg(OPT_gpubnames) 782 ? llvm::DICompileUnit::DebugNameTableKind::Default 783 : llvm::DICompileUnit::DebugNameTableKind::None); 784 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 785 786 setPGOInstrumentor(Opts, Args, Diags); 787 Opts.InstrProfileOutput = 788 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 789 Opts.ProfileInstrumentUsePath = 790 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 791 if (!Opts.ProfileInstrumentUsePath.empty()) 792 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 793 Opts.ProfileRemappingFile = 794 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ); 795 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 796 Diags.Report(diag::err_drv_argument_only_allowed_with) 797 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 798 << "-fexperimental-new-pass-manager"; 799 } 800 801 Opts.CoverageMapping = 802 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 803 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 804 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 805 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 806 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 807 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 808 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 809 Opts.RegisterGlobalDtorsWithAtExit = 810 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 811 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 812 Opts.CodeModel = TargetOpts.CodeModel; 813 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 814 Opts.DisableFPElim = 815 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 816 Opts.DisableFree = Args.hasArg(OPT_disable_free); 817 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 818 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 819 Opts.NoEscapingBlockTailCalls = 820 Args.hasArg(OPT_fno_escaping_block_tail_calls); 821 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 822 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 823 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 824 Args.hasArg(OPT_cl_fast_relaxed_math); 825 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 826 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 827 Args.hasArg(OPT_cl_finite_math_only) || 828 Args.hasArg(OPT_cl_fast_relaxed_math)); 829 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 830 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 831 Args.hasArg(OPT_cl_finite_math_only) || 832 Args.hasArg(OPT_cl_fast_relaxed_math)); 833 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 834 Args.hasArg(OPT_cl_no_signed_zeros) || 835 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 836 Args.hasArg(OPT_cl_fast_relaxed_math)); 837 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 838 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) || 839 (Args.hasArg(OPT_fcuda_is_device) && 840 Args.hasArg(OPT_fcuda_flush_denormals_to_zero)); 841 Opts.CorrectlyRoundedDivSqrt = 842 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 843 Opts.UniformWGSize = 844 Args.hasArg(OPT_cl_uniform_work_group_size); 845 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 846 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 847 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 848 Opts.StrictFloatCastOverflow = 849 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 850 851 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 852 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 853 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 854 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 855 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 856 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 857 Opts.IncrementalLinkerCompatible = 858 Args.hasArg(OPT_mincremental_linker_compatible); 859 Opts.PIECopyRelocations = 860 Args.hasArg(OPT_mpie_copy_relocations); 861 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 862 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 863 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 864 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 865 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 866 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 867 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 868 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 869 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 870 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 871 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 872 Args.hasArg(OPT_cl_fast_relaxed_math); 873 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 874 Opts.RelocationModel = getRelocModel(Args, Diags); 875 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 876 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 877 Diags.Report(diag::err_drv_invalid_value) 878 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 879 << Opts.ThreadModel; 880 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 881 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 882 883 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 884 OPT_fno_function_sections, false); 885 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 886 OPT_fno_data_sections, false); 887 Opts.StackSizeSection = 888 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 889 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 890 OPT_fno_unique_section_names, true); 891 892 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 893 894 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 895 896 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 897 898 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 899 900 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 901 Opts.PrepareForThinLTO = false; 902 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 903 StringRef S = A->getValue(); 904 if (S == "thin") 905 Opts.PrepareForThinLTO = true; 906 else if (S != "full") 907 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 908 } 909 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 910 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 911 if (IK.getLanguage() != InputKind::LLVM_IR) 912 Diags.Report(diag::err_drv_argument_only_allowed_with) 913 << A->getAsString(Args) << "-x ir"; 914 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 915 } 916 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 917 Opts.SaveTempsFilePrefix = 918 llvm::StringSwitch<std::string>(A->getValue()) 919 .Case("obj", FrontendOpts.OutputFile) 920 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 921 922 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 923 924 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 925 926 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 927 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 928 929 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 930 931 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 932 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 933 934 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 935 936 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 937 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 938 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 939 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 940 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 941 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 942 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 943 Opts.CoverageNoFunctionNamesInData = 944 Args.hasArg(OPT_coverage_no_function_names_in_data); 945 Opts.ProfileFilterFiles = 946 Args.getLastArgValue(OPT_fprofile_filter_files_EQ); 947 Opts.ProfileExcludeFiles = 948 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ); 949 Opts.CoverageExitBlockBeforeBody = 950 Args.hasArg(OPT_coverage_exit_block_before_body); 951 if (Args.hasArg(OPT_coverage_version_EQ)) { 952 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 953 if (CoverageVersion.size() != 4) { 954 Diags.Report(diag::err_drv_invalid_value) 955 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 956 << CoverageVersion; 957 } else { 958 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 959 } 960 } 961 } 962 // Handle -fembed-bitcode option. 963 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 964 StringRef Name = A->getValue(); 965 unsigned Model = llvm::StringSwitch<unsigned>(Name) 966 .Case("off", CodeGenOptions::Embed_Off) 967 .Case("all", CodeGenOptions::Embed_All) 968 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 969 .Case("marker", CodeGenOptions::Embed_Marker) 970 .Default(~0U); 971 if (Model == ~0U) { 972 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 973 Success = false; 974 } else 975 Opts.setEmbedBitcode( 976 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 977 } 978 // FIXME: For backend options that are not yet recorded as function 979 // attributes in the IR, keep track of them so we can embed them in a 980 // separate data section and use them when building the bitcode. 981 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 982 for (const auto &A : Args) { 983 // Do not encode output and input. 984 if (A->getOption().getID() == options::OPT_o || 985 A->getOption().getID() == options::OPT_INPUT || 986 A->getOption().getID() == options::OPT_x || 987 A->getOption().getID() == options::OPT_fembed_bitcode || 988 (A->getOption().getGroup().isValid() && 989 A->getOption().getGroup().getID() == options::OPT_W_Group)) 990 continue; 991 ArgStringList ASL; 992 A->render(Args, ASL); 993 for (const auto &arg : ASL) { 994 StringRef ArgStr(arg); 995 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 996 // using \00 to separate each commandline options. 997 Opts.CmdArgs.push_back('\0'); 998 } 999 } 1000 } 1001 1002 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1003 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1004 Opts.InstrumentFunctionsAfterInlining = 1005 Args.hasArg(OPT_finstrument_functions_after_inlining); 1006 Opts.InstrumentFunctionEntryBare = 1007 Args.hasArg(OPT_finstrument_function_entry_bare); 1008 1009 Opts.XRayInstrumentFunctions = 1010 Args.hasArg(OPT_fxray_instrument); 1011 Opts.XRayAlwaysEmitCustomEvents = 1012 Args.hasArg(OPT_fxray_always_emit_customevents); 1013 Opts.XRayAlwaysEmitTypedEvents = 1014 Args.hasArg(OPT_fxray_always_emit_typedevents); 1015 Opts.XRayInstructionThreshold = 1016 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1017 1018 auto XRayInstrBundles = 1019 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1020 if (XRayInstrBundles.empty()) 1021 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1022 else 1023 for (const auto &A : XRayInstrBundles) 1024 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1025 Diags, Opts.XRayInstrumentationBundle); 1026 1027 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1028 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1029 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1030 1031 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1032 StringRef Name = A->getValue(); 1033 if (Name == "full") { 1034 Opts.CFProtectionReturn = 1; 1035 Opts.CFProtectionBranch = 1; 1036 } else if (Name == "return") 1037 Opts.CFProtectionReturn = 1; 1038 else if (Name == "branch") 1039 Opts.CFProtectionBranch = 1; 1040 else if (Name != "none") { 1041 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1042 Success = false; 1043 } 1044 } 1045 1046 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1047 OPT_compress_debug_sections_EQ)) { 1048 if (A->getOption().getID() == OPT_compress_debug_sections) { 1049 // TODO: be more clever about the compression type auto-detection 1050 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1051 } else { 1052 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1053 .Case("none", llvm::DebugCompressionType::None) 1054 .Case("zlib", llvm::DebugCompressionType::Z) 1055 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1056 .Default(llvm::DebugCompressionType::None); 1057 Opts.setCompressDebugSections(DCT); 1058 } 1059 } 1060 1061 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1062 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1063 for (auto *A : 1064 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1065 CodeGenOptions::BitcodeFileToLink F; 1066 F.Filename = A->getValue(); 1067 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1068 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1069 // When linking CUDA bitcode, propagate function attributes so that 1070 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1071 F.PropagateAttrs = true; 1072 F.Internalize = true; 1073 } 1074 Opts.LinkBitcodeFiles.push_back(F); 1075 } 1076 Opts.SanitizeCoverageType = 1077 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1078 Opts.SanitizeCoverageIndirectCalls = 1079 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1080 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1081 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1082 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1083 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1084 Opts.SanitizeCoverage8bitCounters = 1085 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1086 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1087 Opts.SanitizeCoverageTracePCGuard = 1088 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1089 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1090 Opts.SanitizeCoverageInline8bitCounters = 1091 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1092 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1093 Opts.SanitizeCoverageStackDepth = 1094 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1095 Opts.SanitizeMemoryTrackOrigins = 1096 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1097 Opts.SanitizeMemoryUseAfterDtor = 1098 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1099 OPT_fno_sanitize_memory_use_after_dtor, 1100 false); 1101 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1102 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1103 Opts.SanitizeCfiICallGeneralizePointers = 1104 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1105 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1106 if (Arg *A = Args.getLastArg( 1107 OPT_fsanitize_address_poison_custom_array_cookie, 1108 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1109 Opts.SanitizeAddressPoisonCustomArrayCookie = 1110 A->getOption().getID() == 1111 OPT_fsanitize_address_poison_custom_array_cookie; 1112 } 1113 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1114 OPT_fno_sanitize_address_use_after_scope)) { 1115 Opts.SanitizeAddressUseAfterScope = 1116 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1117 } 1118 Opts.SanitizeAddressGlobalsDeadStripping = 1119 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1120 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1121 OPT_fno_sanitize_address_use_odr_indicator)) { 1122 Opts.SanitizeAddressUseOdrIndicator = 1123 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1124 } 1125 Opts.SSPBufferSize = 1126 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1127 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1128 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1129 StringRef Val = A->getValue(); 1130 unsigned StackAlignment = Opts.StackAlignment; 1131 Val.getAsInteger(10, StackAlignment); 1132 Opts.StackAlignment = StackAlignment; 1133 } 1134 1135 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1136 StringRef Val = A->getValue(); 1137 unsigned StackProbeSize = Opts.StackProbeSize; 1138 Val.getAsInteger(0, StackProbeSize); 1139 Opts.StackProbeSize = StackProbeSize; 1140 } 1141 1142 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1143 1144 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1145 StringRef Name = A->getValue(); 1146 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1147 .Case("legacy", CodeGenOptions::Legacy) 1148 .Case("non-legacy", CodeGenOptions::NonLegacy) 1149 .Case("mixed", CodeGenOptions::Mixed) 1150 .Default(~0U); 1151 if (Method == ~0U) { 1152 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1153 Success = false; 1154 } else { 1155 Opts.setObjCDispatchMethod( 1156 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1157 } 1158 } 1159 1160 1161 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1162 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1163 1164 if (Args.getLastArg(OPT_femulated_tls) || 1165 Args.getLastArg(OPT_fno_emulated_tls)) { 1166 Opts.ExplicitEmulatedTLS = true; 1167 Opts.EmulatedTLS = 1168 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1169 } 1170 1171 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1172 StringRef Name = A->getValue(); 1173 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1174 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1175 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1176 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1177 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1178 .Default(~0U); 1179 if (Model == ~0U) { 1180 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1181 Success = false; 1182 } else { 1183 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1184 } 1185 } 1186 1187 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1188 StringRef Val = A->getValue(); 1189 if (Val == "ieee") 1190 Opts.FPDenormalMode = "ieee"; 1191 else if (Val == "preserve-sign") 1192 Opts.FPDenormalMode = "preserve-sign"; 1193 else if (Val == "positive-zero") 1194 Opts.FPDenormalMode = "positive-zero"; 1195 else 1196 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1197 } 1198 1199 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1200 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1201 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1202 } else { 1203 assert(A->getOption().matches(OPT_freg_struct_return)); 1204 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1205 } 1206 } 1207 1208 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1209 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1210 bool NeedLocTracking = false; 1211 1212 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 1213 if (!Opts.OptRecordFile.empty()) 1214 NeedLocTracking = true; 1215 1216 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1217 Opts.OptimizationRemarkPattern = 1218 GenerateOptimizationRemarkRegex(Diags, Args, A); 1219 NeedLocTracking = true; 1220 } 1221 1222 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1223 Opts.OptimizationRemarkMissedPattern = 1224 GenerateOptimizationRemarkRegex(Diags, Args, A); 1225 NeedLocTracking = true; 1226 } 1227 1228 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1229 Opts.OptimizationRemarkAnalysisPattern = 1230 GenerateOptimizationRemarkRegex(Diags, Args, A); 1231 NeedLocTracking = true; 1232 } 1233 1234 Opts.DiagnosticsWithHotness = 1235 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1236 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1237 bool UsingProfile = UsingSampleProfile || 1238 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1239 1240 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1241 // An IR file will contain PGO as metadata 1242 IK.getLanguage() != InputKind::LLVM_IR) 1243 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1244 << "-fdiagnostics-show-hotness"; 1245 1246 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1247 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1248 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1249 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1250 << "-fdiagnostics-hotness-threshold="; 1251 1252 // If the user requested to use a sample profile for PGO, then the 1253 // backend will need to track source location information so the profile 1254 // can be incorporated into the IR. 1255 if (UsingSampleProfile) 1256 NeedLocTracking = true; 1257 1258 // If the user requested a flag that requires source locations available in 1259 // the backend, make sure that the backend tracks source location information. 1260 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1261 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1262 1263 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1264 1265 // Parse -fsanitize-recover= arguments. 1266 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1267 parseSanitizerKinds("-fsanitize-recover=", 1268 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1269 Opts.SanitizeRecover); 1270 parseSanitizerKinds("-fsanitize-trap=", 1271 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1272 Opts.SanitizeTrap); 1273 1274 Opts.CudaGpuBinaryFileName = 1275 Args.getLastArgValue(OPT_fcuda_include_gpubinary); 1276 1277 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1278 1279 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1280 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1281 1282 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1283 1284 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1285 1286 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1287 StringRef SignScope = A->getValue(); 1288 1289 if (SignScope.equals_lower("none")) 1290 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1291 else if (SignScope.equals_lower("all")) 1292 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1293 else if (SignScope.equals_lower("non-leaf")) 1294 Opts.setSignReturnAddress( 1295 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1296 else 1297 Diags.Report(diag::err_drv_invalid_value) 1298 << A->getAsString(Args) << SignScope; 1299 1300 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1301 StringRef SignKey = A->getValue(); 1302 if (!SignScope.empty() && !SignKey.empty()) { 1303 if (SignKey.equals_lower("a_key")) 1304 Opts.setSignReturnAddressKey( 1305 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1306 else if (SignKey.equals_lower("b_key")) 1307 Opts.setSignReturnAddressKey( 1308 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1309 else 1310 Diags.Report(diag::err_drv_invalid_value) 1311 << A->getAsString(Args) << SignKey; 1312 } 1313 } 1314 } 1315 1316 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1317 1318 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1319 1320 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1321 1322 return Success; 1323 } 1324 1325 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1326 ArgList &Args) { 1327 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1328 Opts.Targets = Args.getAllArgValues(OPT_MT); 1329 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1330 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1331 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1332 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1333 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1334 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1335 if (Args.hasArg(OPT_show_includes)) { 1336 // Writing both /showIncludes and preprocessor output to stdout 1337 // would produce interleaved output, so use stderr for /showIncludes. 1338 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1339 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1340 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1341 else 1342 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1343 } else { 1344 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1345 } 1346 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1347 Opts.ModuleDependencyOutputDir = 1348 Args.getLastArgValue(OPT_module_dependency_dir); 1349 if (Args.hasArg(OPT_MV)) 1350 Opts.OutputFormat = DependencyOutputFormat::NMake; 1351 // Add sanitizer blacklists as extra dependencies. 1352 // They won't be discovered by the regular preprocessor, so 1353 // we let make / ninja to know about this implicit dependency. 1354 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1355 // Only the -fmodule-file=<file> form. 1356 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1357 StringRef Val = A->getValue(); 1358 if (Val.find('=') == StringRef::npos) 1359 Opts.ExtraDeps.push_back(Val); 1360 } 1361 } 1362 1363 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1364 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1365 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1366 // Support both clang's -f[no-]color-diagnostics and gcc's 1367 // -f[no-]diagnostics-colors[=never|always|auto]. 1368 enum { 1369 Colors_On, 1370 Colors_Off, 1371 Colors_Auto 1372 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1373 for (auto *A : Args) { 1374 const Option &O = A->getOption(); 1375 if (O.matches(options::OPT_fcolor_diagnostics) || 1376 O.matches(options::OPT_fdiagnostics_color)) { 1377 ShowColors = Colors_On; 1378 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1379 O.matches(options::OPT_fno_diagnostics_color)) { 1380 ShowColors = Colors_Off; 1381 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1382 StringRef Value(A->getValue()); 1383 if (Value == "always") 1384 ShowColors = Colors_On; 1385 else if (Value == "never") 1386 ShowColors = Colors_Off; 1387 else if (Value == "auto") 1388 ShowColors = Colors_Auto; 1389 } 1390 } 1391 return ShowColors == Colors_On || 1392 (ShowColors == Colors_Auto && 1393 llvm::sys::Process::StandardErrHasColors()); 1394 } 1395 1396 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1397 DiagnosticsEngine *Diags) { 1398 bool Success = true; 1399 for (const auto &Prefix : VerifyPrefixes) { 1400 // Every prefix must start with a letter and contain only alphanumeric 1401 // characters, hyphens, and underscores. 1402 auto BadChar = std::find_if(Prefix.begin(), Prefix.end(), 1403 [](char C){return !isAlphanumeric(C) 1404 && C != '-' && C != '_';}); 1405 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1406 Success = false; 1407 if (Diags) { 1408 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1409 Diags->Report(diag::note_drv_verify_prefix_spelling); 1410 } 1411 } 1412 } 1413 return Success; 1414 } 1415 1416 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1417 DiagnosticsEngine *Diags, 1418 bool DefaultDiagColor, bool DefaultShowOpt) { 1419 bool Success = true; 1420 1421 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1422 if (Arg *A = 1423 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1424 Opts.DiagnosticSerializationFile = A->getValue(); 1425 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1426 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1427 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1428 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1429 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1430 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1431 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1432 OPT_fno_show_column, 1433 /*Default=*/true); 1434 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1435 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1436 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1437 Opts.ShowOptionNames = 1438 Args.hasFlag(OPT_fdiagnostics_show_option, 1439 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1440 1441 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1442 1443 // Default behavior is to not to show note include stacks. 1444 Opts.ShowNoteIncludeStack = false; 1445 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1446 OPT_fno_diagnostics_show_note_include_stack)) 1447 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1448 Opts.ShowNoteIncludeStack = true; 1449 1450 StringRef ShowOverloads = 1451 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1452 if (ShowOverloads == "best") 1453 Opts.setShowOverloads(Ovl_Best); 1454 else if (ShowOverloads == "all") 1455 Opts.setShowOverloads(Ovl_All); 1456 else { 1457 Success = false; 1458 if (Diags) 1459 Diags->Report(diag::err_drv_invalid_value) 1460 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1461 << ShowOverloads; 1462 } 1463 1464 StringRef ShowCategory = 1465 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1466 if (ShowCategory == "none") 1467 Opts.ShowCategories = 0; 1468 else if (ShowCategory == "id") 1469 Opts.ShowCategories = 1; 1470 else if (ShowCategory == "name") 1471 Opts.ShowCategories = 2; 1472 else { 1473 Success = false; 1474 if (Diags) 1475 Diags->Report(diag::err_drv_invalid_value) 1476 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1477 << ShowCategory; 1478 } 1479 1480 StringRef Format = 1481 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1482 if (Format == "clang") 1483 Opts.setFormat(DiagnosticOptions::Clang); 1484 else if (Format == "msvc") 1485 Opts.setFormat(DiagnosticOptions::MSVC); 1486 else if (Format == "msvc-fallback") { 1487 Opts.setFormat(DiagnosticOptions::MSVC); 1488 Opts.CLFallbackMode = true; 1489 } else if (Format == "vi") 1490 Opts.setFormat(DiagnosticOptions::Vi); 1491 else { 1492 Success = false; 1493 if (Diags) 1494 Diags->Report(diag::err_drv_invalid_value) 1495 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1496 << Format; 1497 } 1498 1499 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1500 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1501 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1502 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1503 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1504 if (Args.hasArg(OPT_verify)) 1505 Opts.VerifyPrefixes.push_back("expected"); 1506 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1507 // then sort it to prepare for fast lookup using std::binary_search. 1508 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1509 Opts.VerifyDiagnostics = false; 1510 Success = false; 1511 } 1512 else 1513 llvm::sort(Opts.VerifyPrefixes); 1514 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1515 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1516 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1517 Diags, DiagMask); 1518 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1519 DiagMask = DiagnosticLevelMask::All; 1520 Opts.setVerifyIgnoreUnexpected(DiagMask); 1521 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1522 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1523 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1524 Opts.MacroBacktraceLimit = 1525 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1526 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1527 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1528 Args, OPT_ftemplate_backtrace_limit, 1529 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1530 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1531 Args, OPT_fconstexpr_backtrace_limit, 1532 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1533 Opts.SpellCheckingLimit = getLastArgIntValue( 1534 Args, OPT_fspell_checking_limit, 1535 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1536 Opts.SnippetLineLimit = getLastArgIntValue( 1537 Args, OPT_fcaret_diagnostics_max_lines, 1538 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1539 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1540 DiagnosticOptions::DefaultTabStop, Diags); 1541 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1542 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1543 if (Diags) 1544 Diags->Report(diag::warn_ignoring_ftabstop_value) 1545 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1546 } 1547 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1548 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1549 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1550 1551 return Success; 1552 } 1553 1554 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1555 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1556 } 1557 1558 /// Parse the argument to the -ftest-module-file-extension 1559 /// command-line argument. 1560 /// 1561 /// \returns true on error, false on success. 1562 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1563 std::string &BlockName, 1564 unsigned &MajorVersion, 1565 unsigned &MinorVersion, 1566 bool &Hashed, 1567 std::string &UserInfo) { 1568 SmallVector<StringRef, 5> Args; 1569 Arg.split(Args, ':', 5); 1570 if (Args.size() < 5) 1571 return true; 1572 1573 BlockName = Args[0]; 1574 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1575 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1576 if (Args[3].getAsInteger(2, Hashed)) return true; 1577 if (Args.size() > 4) 1578 UserInfo = Args[4]; 1579 return false; 1580 } 1581 1582 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1583 DiagnosticsEngine &Diags, 1584 bool &IsHeaderFile) { 1585 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1586 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1587 switch (A->getOption().getID()) { 1588 default: 1589 llvm_unreachable("Invalid option in group!"); 1590 case OPT_ast_list: 1591 Opts.ProgramAction = frontend::ASTDeclList; break; 1592 case OPT_ast_dump: 1593 case OPT_ast_dump_all: 1594 case OPT_ast_dump_lookups: 1595 Opts.ProgramAction = frontend::ASTDump; break; 1596 case OPT_ast_print: 1597 Opts.ProgramAction = frontend::ASTPrint; break; 1598 case OPT_ast_view: 1599 Opts.ProgramAction = frontend::ASTView; break; 1600 case OPT_compiler_options_dump: 1601 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1602 case OPT_dump_raw_tokens: 1603 Opts.ProgramAction = frontend::DumpRawTokens; break; 1604 case OPT_dump_tokens: 1605 Opts.ProgramAction = frontend::DumpTokens; break; 1606 case OPT_S: 1607 Opts.ProgramAction = frontend::EmitAssembly; break; 1608 case OPT_emit_llvm_bc: 1609 Opts.ProgramAction = frontend::EmitBC; break; 1610 case OPT_emit_html: 1611 Opts.ProgramAction = frontend::EmitHTML; break; 1612 case OPT_emit_llvm: 1613 Opts.ProgramAction = frontend::EmitLLVM; break; 1614 case OPT_emit_llvm_only: 1615 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1616 case OPT_emit_codegen_only: 1617 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1618 case OPT_emit_obj: 1619 Opts.ProgramAction = frontend::EmitObj; break; 1620 case OPT_fixit_EQ: 1621 Opts.FixItSuffix = A->getValue(); 1622 LLVM_FALLTHROUGH; 1623 case OPT_fixit: 1624 Opts.ProgramAction = frontend::FixIt; break; 1625 case OPT_emit_module: 1626 Opts.ProgramAction = frontend::GenerateModule; break; 1627 case OPT_emit_module_interface: 1628 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1629 case OPT_emit_header_module: 1630 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1631 case OPT_emit_pch: 1632 Opts.ProgramAction = frontend::GeneratePCH; break; 1633 case OPT_init_only: 1634 Opts.ProgramAction = frontend::InitOnly; break; 1635 case OPT_fsyntax_only: 1636 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1637 case OPT_module_file_info: 1638 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1639 case OPT_verify_pch: 1640 Opts.ProgramAction = frontend::VerifyPCH; break; 1641 case OPT_print_preamble: 1642 Opts.ProgramAction = frontend::PrintPreamble; break; 1643 case OPT_E: 1644 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1645 case OPT_templight_dump: 1646 Opts.ProgramAction = frontend::TemplightDump; break; 1647 case OPT_rewrite_macros: 1648 Opts.ProgramAction = frontend::RewriteMacros; break; 1649 case OPT_rewrite_objc: 1650 Opts.ProgramAction = frontend::RewriteObjC; break; 1651 case OPT_rewrite_test: 1652 Opts.ProgramAction = frontend::RewriteTest; break; 1653 case OPT_analyze: 1654 Opts.ProgramAction = frontend::RunAnalysis; break; 1655 case OPT_migrate: 1656 Opts.ProgramAction = frontend::MigrateSource; break; 1657 case OPT_Eonly: 1658 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1659 } 1660 } 1661 1662 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1663 Opts.Plugins.emplace_back(A->getValue(0)); 1664 Opts.ProgramAction = frontend::PluginAction; 1665 Opts.ActionName = A->getValue(); 1666 } 1667 for (const std::string &Arg : Args.getAllArgValues(OPT_add_plugin)) { 1668 bool Found = false; 1669 for (FrontendPluginRegistry::iterator it = FrontendPluginRegistry::begin(), 1670 ie = FrontendPluginRegistry::end(); 1671 it != ie; ++it) { 1672 if (it->getName() == Arg) 1673 Found = true; 1674 } 1675 if (!Found) { 1676 Diags.Report(diag::err_fe_invalid_plugin_name) << Arg; 1677 continue; 1678 } 1679 Opts.AddPluginActions.push_back(Arg); 1680 } 1681 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1682 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1683 1684 for (const std::string &Arg : 1685 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1686 std::string BlockName; 1687 unsigned MajorVersion; 1688 unsigned MinorVersion; 1689 bool Hashed; 1690 std::string UserInfo; 1691 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1692 MinorVersion, Hashed, UserInfo)) { 1693 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1694 1695 continue; 1696 } 1697 1698 // Add the testing module file extension. 1699 Opts.ModuleFileExtensions.push_back( 1700 std::make_shared<TestModuleFileExtension>( 1701 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1702 } 1703 1704 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1705 Opts.CodeCompletionAt = 1706 ParsedSourceLocation::FromString(A->getValue()); 1707 if (Opts.CodeCompletionAt.FileName.empty()) 1708 Diags.Report(diag::err_drv_invalid_value) 1709 << A->getAsString(Args) << A->getValue(); 1710 } 1711 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1712 1713 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1714 Opts.Plugins = Args.getAllArgValues(OPT_load); 1715 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1716 Opts.ShowHelp = Args.hasArg(OPT_help); 1717 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1718 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1719 Opts.ShowVersion = Args.hasArg(OPT_version); 1720 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1721 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1722 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1723 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1724 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1725 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1726 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1727 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1728 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1729 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1730 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1731 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1732 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1733 // Only the -fmodule-file=<file> form. 1734 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1735 StringRef Val = A->getValue(); 1736 if (Val.find('=') == StringRef::npos) 1737 Opts.ModuleFiles.push_back(Val); 1738 } 1739 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1740 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1741 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1742 1743 Opts.CodeCompleteOpts.IncludeMacros 1744 = Args.hasArg(OPT_code_completion_macros); 1745 Opts.CodeCompleteOpts.IncludeCodePatterns 1746 = Args.hasArg(OPT_code_completion_patterns); 1747 Opts.CodeCompleteOpts.IncludeGlobals 1748 = !Args.hasArg(OPT_no_code_completion_globals); 1749 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1750 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1751 Opts.CodeCompleteOpts.IncludeBriefComments 1752 = Args.hasArg(OPT_code_completion_brief_comments); 1753 Opts.CodeCompleteOpts.IncludeFixIts 1754 = Args.hasArg(OPT_code_completion_with_fixits); 1755 1756 Opts.OverrideRecordLayoutsFile 1757 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1758 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple); 1759 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1760 1761 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1762 OPT_arcmt_modify, 1763 OPT_arcmt_migrate)) { 1764 switch (A->getOption().getID()) { 1765 default: 1766 llvm_unreachable("missed a case"); 1767 case OPT_arcmt_check: 1768 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1769 break; 1770 case OPT_arcmt_modify: 1771 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1772 break; 1773 case OPT_arcmt_migrate: 1774 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1775 break; 1776 } 1777 } 1778 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1779 Opts.ARCMTMigrateReportOut 1780 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1781 Opts.ARCMTMigrateEmitARCErrors 1782 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1783 1784 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1785 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1786 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1787 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1788 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1789 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1790 if (Args.hasArg(OPT_objcmt_migrate_property)) 1791 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1792 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1793 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1794 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1795 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1796 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1797 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1798 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1799 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1800 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1801 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1802 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1803 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1804 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1805 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1806 if (Args.hasArg(OPT_objcmt_atomic_property)) 1807 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1808 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1809 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1810 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1811 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1812 if (Args.hasArg(OPT_objcmt_migrate_all)) 1813 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1814 1815 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1816 1817 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1818 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1819 Diags.Report(diag::err_drv_argument_not_allowed_with) 1820 << "ARC migration" << "ObjC migration"; 1821 } 1822 1823 InputKind DashX(InputKind::Unknown); 1824 if (const Arg *A = Args.getLastArg(OPT_x)) { 1825 StringRef XValue = A->getValue(); 1826 1827 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1828 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1829 bool Preprocessed = XValue.consume_back("-cpp-output"); 1830 bool ModuleMap = XValue.consume_back("-module-map"); 1831 IsHeaderFile = 1832 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1833 1834 // Principal languages. 1835 DashX = llvm::StringSwitch<InputKind>(XValue) 1836 .Case("c", InputKind::C) 1837 .Case("cl", InputKind::OpenCL) 1838 .Case("cuda", InputKind::CUDA) 1839 .Case("hip", InputKind::HIP) 1840 .Case("c++", InputKind::CXX) 1841 .Case("objective-c", InputKind::ObjC) 1842 .Case("objective-c++", InputKind::ObjCXX) 1843 .Case("renderscript", InputKind::RenderScript) 1844 .Default(InputKind::Unknown); 1845 1846 // "objc[++]-cpp-output" is an acceptable synonym for 1847 // "objective-c[++]-cpp-output". 1848 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1849 DashX = llvm::StringSwitch<InputKind>(XValue) 1850 .Case("objc", InputKind::ObjC) 1851 .Case("objc++", InputKind::ObjCXX) 1852 .Default(InputKind::Unknown); 1853 1854 // Some special cases cannot be combined with suffixes. 1855 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1856 DashX = llvm::StringSwitch<InputKind>(XValue) 1857 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1858 .Case("assembler-with-cpp", InputKind::Asm) 1859 .Cases("ast", "pcm", 1860 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1861 .Case("ir", InputKind::LLVM_IR) 1862 .Default(InputKind::Unknown); 1863 1864 if (DashX.isUnknown()) 1865 Diags.Report(diag::err_drv_invalid_value) 1866 << A->getAsString(Args) << A->getValue(); 1867 1868 if (Preprocessed) 1869 DashX = DashX.getPreprocessed(); 1870 if (ModuleMap) 1871 DashX = DashX.withFormat(InputKind::ModuleMap); 1872 } 1873 1874 // '-' is the default input if none is given. 1875 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1876 Opts.Inputs.clear(); 1877 if (Inputs.empty()) 1878 Inputs.push_back("-"); 1879 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1880 InputKind IK = DashX; 1881 if (IK.isUnknown()) { 1882 IK = FrontendOptions::getInputKindForExtension( 1883 StringRef(Inputs[i]).rsplit('.').second); 1884 // FIXME: Warn on this? 1885 if (IK.isUnknown()) 1886 IK = InputKind::C; 1887 // FIXME: Remove this hack. 1888 if (i == 0) 1889 DashX = IK; 1890 } 1891 1892 // The -emit-module action implicitly takes a module map. 1893 if (Opts.ProgramAction == frontend::GenerateModule && 1894 IK.getFormat() == InputKind::Source) 1895 IK = IK.withFormat(InputKind::ModuleMap); 1896 1897 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1898 } 1899 1900 return DashX; 1901 } 1902 1903 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1904 void *MainAddr) { 1905 std::string ClangExecutable = 1906 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1907 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1908 1909 // Compute the path to the resource directory. 1910 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1911 SmallString<128> P(Dir); 1912 if (ClangResourceDir != "") 1913 llvm::sys::path::append(P, ClangResourceDir); 1914 else 1915 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1916 "clang", CLANG_VERSION_STRING); 1917 1918 return P.str(); 1919 } 1920 1921 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1922 const std::string &WorkingDir) { 1923 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1924 Opts.Verbose = Args.hasArg(OPT_v); 1925 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1926 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1927 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1928 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1929 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1930 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1931 1932 // Canonicalize -fmodules-cache-path before storing it. 1933 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1934 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1935 if (WorkingDir.empty()) 1936 llvm::sys::fs::make_absolute(P); 1937 else 1938 llvm::sys::fs::make_absolute(WorkingDir, P); 1939 } 1940 llvm::sys::path::remove_dots(P); 1941 Opts.ModuleCachePath = P.str(); 1942 1943 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1944 // Only the -fmodule-file=<name>=<file> form. 1945 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1946 StringRef Val = A->getValue(); 1947 if (Val.find('=') != StringRef::npos) 1948 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1949 } 1950 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 1951 Opts.AddPrebuiltModulePath(A->getValue()); 1952 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1953 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1954 Opts.ModulesValidateDiagnosticOptions = 1955 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1956 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1957 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1958 Opts.ModuleCachePruneInterval = 1959 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1960 Opts.ModuleCachePruneAfter = 1961 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1962 Opts.ModulesValidateOncePerBuildSession = 1963 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1964 Opts.BuildSessionTimestamp = 1965 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1966 Opts.ModulesValidateSystemHeaders = 1967 Args.hasArg(OPT_fmodules_validate_system_headers); 1968 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1969 Opts.ModuleFormat = A->getValue(); 1970 1971 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1972 StringRef MacroDef = A->getValue(); 1973 Opts.ModulesIgnoreMacros.insert( 1974 llvm::CachedHashString(MacroDef.split('=').first)); 1975 } 1976 1977 // Add -I..., -F..., and -index-header-map options in order. 1978 bool IsIndexHeaderMap = false; 1979 bool IsSysrootSpecified = 1980 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1981 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1982 if (A->getOption().matches(OPT_index_header_map)) { 1983 // -index-header-map applies to the next -I or -F. 1984 IsIndexHeaderMap = true; 1985 continue; 1986 } 1987 1988 frontend::IncludeDirGroup Group = 1989 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1990 1991 bool IsFramework = A->getOption().matches(OPT_F); 1992 std::string Path = A->getValue(); 1993 1994 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1995 SmallString<32> Buffer; 1996 llvm::sys::path::append(Buffer, Opts.Sysroot, 1997 llvm::StringRef(A->getValue()).substr(1)); 1998 Path = Buffer.str(); 1999 } 2000 2001 Opts.AddPath(Path, Group, IsFramework, 2002 /*IgnoreSysroot*/ true); 2003 IsIndexHeaderMap = false; 2004 } 2005 2006 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2007 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2008 for (const auto *A : 2009 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2010 if (A->getOption().matches(OPT_iprefix)) 2011 Prefix = A->getValue(); 2012 else if (A->getOption().matches(OPT_iwithprefix)) 2013 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2014 else 2015 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2016 } 2017 2018 for (const auto *A : Args.filtered(OPT_idirafter)) 2019 Opts.AddPath(A->getValue(), frontend::After, false, true); 2020 for (const auto *A : Args.filtered(OPT_iquote)) 2021 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2022 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2023 Opts.AddPath(A->getValue(), frontend::System, false, 2024 !A->getOption().matches(OPT_iwithsysroot)); 2025 for (const auto *A : Args.filtered(OPT_iframework)) 2026 Opts.AddPath(A->getValue(), frontend::System, true, true); 2027 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2028 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2029 /*IgnoreSysRoot=*/false); 2030 2031 // Add the paths for the various language specific isystem flags. 2032 for (const auto *A : Args.filtered(OPT_c_isystem)) 2033 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2034 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2035 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2036 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2037 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2038 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2039 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2040 2041 // Add the internal paths from a driver that detects standard include paths. 2042 for (const auto *A : 2043 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2044 frontend::IncludeDirGroup Group = frontend::System; 2045 if (A->getOption().matches(OPT_internal_externc_isystem)) 2046 Group = frontend::ExternCSystem; 2047 Opts.AddPath(A->getValue(), Group, false, true); 2048 } 2049 2050 // Add the path prefixes which are implicitly treated as being system headers. 2051 for (const auto *A : 2052 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2053 Opts.AddSystemHeaderPrefix( 2054 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2055 2056 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2057 Opts.AddVFSOverlayFile(A->getValue()); 2058 } 2059 2060 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2061 const llvm::Triple &T, 2062 PreprocessorOptions &PPOpts, 2063 LangStandard::Kind LangStd) { 2064 // Set some properties which depend solely on the input kind; it would be nice 2065 // to move these to the language standard, and have the driver resolve the 2066 // input kind + language standard. 2067 // 2068 // FIXME: Perhaps a better model would be for a single source file to have 2069 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2070 // simultaneously active? 2071 if (IK.getLanguage() == InputKind::Asm) { 2072 Opts.AsmPreprocessor = 1; 2073 } else if (IK.isObjectiveC()) { 2074 Opts.ObjC = 1; 2075 } 2076 2077 if (LangStd == LangStandard::lang_unspecified) { 2078 // Based on the base language, pick one. 2079 switch (IK.getLanguage()) { 2080 case InputKind::Unknown: 2081 case InputKind::LLVM_IR: 2082 llvm_unreachable("Invalid input kind!"); 2083 case InputKind::OpenCL: 2084 LangStd = LangStandard::lang_opencl10; 2085 break; 2086 case InputKind::CUDA: 2087 LangStd = LangStandard::lang_cuda; 2088 break; 2089 case InputKind::Asm: 2090 case InputKind::C: 2091 #if defined(CLANG_DEFAULT_STD_C) 2092 LangStd = CLANG_DEFAULT_STD_C; 2093 #else 2094 // The PS4 uses C99 as the default C standard. 2095 if (T.isPS4()) 2096 LangStd = LangStandard::lang_gnu99; 2097 else 2098 LangStd = LangStandard::lang_gnu11; 2099 #endif 2100 break; 2101 case InputKind::ObjC: 2102 #if defined(CLANG_DEFAULT_STD_C) 2103 LangStd = CLANG_DEFAULT_STD_C; 2104 #else 2105 LangStd = LangStandard::lang_gnu11; 2106 #endif 2107 break; 2108 case InputKind::CXX: 2109 case InputKind::ObjCXX: 2110 #if defined(CLANG_DEFAULT_STD_CXX) 2111 LangStd = CLANG_DEFAULT_STD_CXX; 2112 #else 2113 LangStd = LangStandard::lang_gnucxx14; 2114 #endif 2115 break; 2116 case InputKind::RenderScript: 2117 LangStd = LangStandard::lang_c99; 2118 break; 2119 case InputKind::HIP: 2120 LangStd = LangStandard::lang_hip; 2121 break; 2122 } 2123 } 2124 2125 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2126 Opts.LineComment = Std.hasLineComments(); 2127 Opts.C99 = Std.isC99(); 2128 Opts.C11 = Std.isC11(); 2129 Opts.C17 = Std.isC17(); 2130 Opts.CPlusPlus = Std.isCPlusPlus(); 2131 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2132 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2133 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2134 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2135 Opts.Digraphs = Std.hasDigraphs(); 2136 Opts.GNUMode = Std.isGNUMode(); 2137 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2138 Opts.HexFloats = Std.hasHexFloats(); 2139 Opts.ImplicitInt = Std.hasImplicitInt(); 2140 2141 // Set OpenCL Version. 2142 Opts.OpenCL = Std.isOpenCL(); 2143 if (LangStd == LangStandard::lang_opencl10) 2144 Opts.OpenCLVersion = 100; 2145 else if (LangStd == LangStandard::lang_opencl11) 2146 Opts.OpenCLVersion = 110; 2147 else if (LangStd == LangStandard::lang_opencl12) 2148 Opts.OpenCLVersion = 120; 2149 else if (LangStd == LangStandard::lang_opencl20) 2150 Opts.OpenCLVersion = 200; 2151 else if (LangStd == LangStandard::lang_openclcpp) 2152 Opts.OpenCLCPlusPlusVersion = 100; 2153 2154 // OpenCL has some additional defaults. 2155 if (Opts.OpenCL) { 2156 Opts.AltiVec = 0; 2157 Opts.ZVector = 0; 2158 Opts.LaxVectorConversions = 0; 2159 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2160 Opts.NativeHalfType = 1; 2161 Opts.NativeHalfArgsAndReturns = 1; 2162 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2163 // Include default header file for OpenCL. 2164 if (Opts.IncludeDefaultHeader) { 2165 PPOpts.Includes.push_back("opencl-c.h"); 2166 } 2167 } 2168 2169 Opts.HIP = IK.getLanguage() == InputKind::HIP; 2170 Opts.CUDA = IK.getLanguage() == InputKind::CUDA || Opts.HIP; 2171 if (Opts.CUDA) 2172 // Set default FP_CONTRACT to FAST. 2173 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2174 2175 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 2176 if (Opts.RenderScript) { 2177 Opts.NativeHalfType = 1; 2178 Opts.NativeHalfArgsAndReturns = 1; 2179 } 2180 2181 // OpenCL and C++ both have bool, true, false keywords. 2182 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2183 2184 // OpenCL has half keyword 2185 Opts.Half = Opts.OpenCL; 2186 2187 // C++ has wchar_t keyword. 2188 Opts.WChar = Opts.CPlusPlus; 2189 2190 Opts.GNUKeywords = Opts.GNUMode; 2191 Opts.CXXOperatorNames = Opts.CPlusPlus; 2192 2193 Opts.AlignedAllocation = Opts.CPlusPlus17; 2194 2195 Opts.DollarIdents = !Opts.AsmPreprocessor; 2196 } 2197 2198 /// Attempt to parse a visibility value out of the given argument. 2199 static Visibility parseVisibility(Arg *arg, ArgList &args, 2200 DiagnosticsEngine &diags) { 2201 StringRef value = arg->getValue(); 2202 if (value == "default") { 2203 return DefaultVisibility; 2204 } else if (value == "hidden" || value == "internal") { 2205 return HiddenVisibility; 2206 } else if (value == "protected") { 2207 // FIXME: diagnose if target does not support protected visibility 2208 return ProtectedVisibility; 2209 } 2210 2211 diags.Report(diag::err_drv_invalid_value) 2212 << arg->getAsString(args) << value; 2213 return DefaultVisibility; 2214 } 2215 2216 /// Check if input file kind and language standard are compatible. 2217 static bool IsInputCompatibleWithStandard(InputKind IK, 2218 const LangStandard &S) { 2219 switch (IK.getLanguage()) { 2220 case InputKind::Unknown: 2221 case InputKind::LLVM_IR: 2222 llvm_unreachable("should not parse language flags for this input"); 2223 2224 case InputKind::C: 2225 case InputKind::ObjC: 2226 case InputKind::RenderScript: 2227 return S.getLanguage() == InputKind::C; 2228 2229 case InputKind::OpenCL: 2230 return S.getLanguage() == InputKind::OpenCL; 2231 2232 case InputKind::CXX: 2233 case InputKind::ObjCXX: 2234 return S.getLanguage() == InputKind::CXX; 2235 2236 case InputKind::CUDA: 2237 // FIXME: What -std= values should be permitted for CUDA compilations? 2238 return S.getLanguage() == InputKind::CUDA || 2239 S.getLanguage() == InputKind::CXX; 2240 2241 case InputKind::HIP: 2242 return S.getLanguage() == InputKind::CXX || 2243 S.getLanguage() == InputKind::HIP; 2244 2245 case InputKind::Asm: 2246 // Accept (and ignore) all -std= values. 2247 // FIXME: The -std= value is not ignored; it affects the tokenization 2248 // and preprocessing rules if we're preprocessing this asm input. 2249 return true; 2250 } 2251 2252 llvm_unreachable("unexpected input language"); 2253 } 2254 2255 /// Get language name for given input kind. 2256 static const StringRef GetInputKindName(InputKind IK) { 2257 switch (IK.getLanguage()) { 2258 case InputKind::C: 2259 return "C"; 2260 case InputKind::ObjC: 2261 return "Objective-C"; 2262 case InputKind::CXX: 2263 return "C++"; 2264 case InputKind::ObjCXX: 2265 return "Objective-C++"; 2266 case InputKind::OpenCL: 2267 return "OpenCL"; 2268 case InputKind::CUDA: 2269 return "CUDA"; 2270 case InputKind::RenderScript: 2271 return "RenderScript"; 2272 case InputKind::HIP: 2273 return "HIP"; 2274 2275 case InputKind::Asm: 2276 return "Asm"; 2277 case InputKind::LLVM_IR: 2278 return "LLVM IR"; 2279 2280 case InputKind::Unknown: 2281 break; 2282 } 2283 llvm_unreachable("unknown input language"); 2284 } 2285 2286 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2287 const TargetOptions &TargetOpts, 2288 PreprocessorOptions &PPOpts, 2289 DiagnosticsEngine &Diags) { 2290 // FIXME: Cleanup per-file based stuff. 2291 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2292 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2293 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2294 #define LANGSTANDARD(id, name, lang, desc, features) \ 2295 .Case(name, LangStandard::lang_##id) 2296 #define LANGSTANDARD_ALIAS(id, alias) \ 2297 .Case(alias, LangStandard::lang_##id) 2298 #include "clang/Frontend/LangStandards.def" 2299 .Default(LangStandard::lang_unspecified); 2300 if (LangStd == LangStandard::lang_unspecified) { 2301 Diags.Report(diag::err_drv_invalid_value) 2302 << A->getAsString(Args) << A->getValue(); 2303 // Report supported standards with short description. 2304 for (unsigned KindValue = 0; 2305 KindValue != LangStandard::lang_unspecified; 2306 ++KindValue) { 2307 const LangStandard &Std = LangStandard::getLangStandardForKind( 2308 static_cast<LangStandard::Kind>(KindValue)); 2309 if (IsInputCompatibleWithStandard(IK, Std)) { 2310 auto Diag = Diags.Report(diag::note_drv_use_standard); 2311 Diag << Std.getName() << Std.getDescription(); 2312 unsigned NumAliases = 0; 2313 #define LANGSTANDARD(id, name, lang, desc, features) 2314 #define LANGSTANDARD_ALIAS(id, alias) \ 2315 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2316 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2317 #include "clang/Frontend/LangStandards.def" 2318 Diag << NumAliases; 2319 #define LANGSTANDARD(id, name, lang, desc, features) 2320 #define LANGSTANDARD_ALIAS(id, alias) \ 2321 if (KindValue == LangStandard::lang_##id) Diag << alias; 2322 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2323 #include "clang/Frontend/LangStandards.def" 2324 } 2325 } 2326 } else { 2327 // Valid standard, check to make sure language and standard are 2328 // compatible. 2329 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2330 if (!IsInputCompatibleWithStandard(IK, Std)) { 2331 Diags.Report(diag::err_drv_argument_not_allowed_with) 2332 << A->getAsString(Args) << GetInputKindName(IK); 2333 } 2334 } 2335 } 2336 2337 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2338 Opts.DllExportInlines = false; 2339 2340 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2341 StringRef Name = A->getValue(); 2342 if (Name == "full" || Name == "branch") { 2343 Opts.CFProtectionBranch = 1; 2344 } 2345 } 2346 // -cl-std only applies for OpenCL language standards. 2347 // Override the -std option in this case. 2348 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2349 LangStandard::Kind OpenCLLangStd 2350 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2351 .Cases("cl", "CL", LangStandard::lang_opencl10) 2352 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2353 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2354 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2355 .Case("c++", LangStandard::lang_openclcpp) 2356 .Default(LangStandard::lang_unspecified); 2357 2358 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2359 Diags.Report(diag::err_drv_invalid_value) 2360 << A->getAsString(Args) << A->getValue(); 2361 } 2362 else 2363 LangStd = OpenCLLangStd; 2364 } 2365 2366 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2367 2368 llvm::Triple T(TargetOpts.Triple); 2369 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2370 2371 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2372 // This option should be deprecated for CL > 1.0 because 2373 // this option was added for compatibility with OpenCL 1.0. 2374 if (Args.getLastArg(OPT_cl_strict_aliasing) 2375 && Opts.OpenCLVersion > 100) { 2376 Diags.Report(diag::warn_option_invalid_ocl_version) 2377 << Opts.getOpenCLVersionTuple().getAsString() 2378 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2379 } 2380 2381 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2382 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2383 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2384 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2385 // name, as it doesn't seem a useful distinction. 2386 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2387 Opts.GNUKeywords); 2388 2389 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2390 2391 if (Args.hasArg(OPT_fno_operator_names)) 2392 Opts.CXXOperatorNames = 0; 2393 2394 if (Args.hasArg(OPT_fcuda_is_device)) 2395 Opts.CUDAIsDevice = 1; 2396 2397 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2398 Opts.CUDAAllowVariadicFunctions = 1; 2399 2400 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2401 Opts.CUDAHostDeviceConstexpr = 0; 2402 2403 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2404 Opts.CUDADeviceApproxTranscendentals = 1; 2405 2406 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2407 2408 if (Opts.ObjC) { 2409 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2410 StringRef value = arg->getValue(); 2411 if (Opts.ObjCRuntime.tryParse(value)) 2412 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2413 } 2414 2415 if (Args.hasArg(OPT_fobjc_gc_only)) 2416 Opts.setGC(LangOptions::GCOnly); 2417 else if (Args.hasArg(OPT_fobjc_gc)) 2418 Opts.setGC(LangOptions::HybridGC); 2419 else if (Args.hasArg(OPT_fobjc_arc)) { 2420 Opts.ObjCAutoRefCount = 1; 2421 if (!Opts.ObjCRuntime.allowsARC()) 2422 Diags.Report(diag::err_arc_unsupported_on_runtime); 2423 } 2424 2425 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2426 // whether the feature is actually enabled. This is predominantly 2427 // determined by -fobjc-runtime, but we allow it to be overridden 2428 // from the command line for testing purposes. 2429 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2430 Opts.ObjCWeakRuntime = 1; 2431 else 2432 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2433 2434 // ObjCWeak determines whether __weak is actually enabled. 2435 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2436 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2437 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2438 assert(!Opts.ObjCWeak); 2439 } else if (Opts.getGC() != LangOptions::NonGC) { 2440 Diags.Report(diag::err_objc_weak_with_gc); 2441 } else if (!Opts.ObjCWeakRuntime) { 2442 Diags.Report(diag::err_objc_weak_unsupported); 2443 } else { 2444 Opts.ObjCWeak = 1; 2445 } 2446 } else if (Opts.ObjCAutoRefCount) { 2447 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2448 } 2449 2450 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2451 Opts.ObjCInferRelatedResultType = 0; 2452 2453 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2454 Opts.ObjCSubscriptingLegacyRuntime = 2455 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2456 } 2457 2458 if (Args.hasArg(OPT_fgnu89_inline)) { 2459 if (Opts.CPlusPlus) 2460 Diags.Report(diag::err_drv_argument_not_allowed_with) 2461 << "-fgnu89-inline" << GetInputKindName(IK); 2462 else 2463 Opts.GNUInline = 1; 2464 } 2465 2466 if (Args.hasArg(OPT_fapple_kext)) { 2467 if (!Opts.CPlusPlus) 2468 Diags.Report(diag::warn_c_kext); 2469 else 2470 Opts.AppleKext = 1; 2471 } 2472 2473 if (Args.hasArg(OPT_print_ivar_layout)) 2474 Opts.ObjCGCBitmapPrint = 1; 2475 2476 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2477 Opts.NoConstantCFStrings = 1; 2478 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2479 Opts.CFRuntime = 2480 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2481 .Cases("unspecified", "standalone", "objc", 2482 LangOptions::CoreFoundationABI::ObjectiveC) 2483 .Cases("swift", "swift-5.0", 2484 LangOptions::CoreFoundationABI::Swift5_0) 2485 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2486 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2487 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2488 2489 if (Args.hasArg(OPT_fzvector)) 2490 Opts.ZVector = 1; 2491 2492 if (Args.hasArg(OPT_pthread)) 2493 Opts.POSIXThreads = 1; 2494 2495 // The value-visibility mode defaults to "default". 2496 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2497 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2498 } else { 2499 Opts.setValueVisibilityMode(DefaultVisibility); 2500 } 2501 2502 // The type-visibility mode defaults to the value-visibility mode. 2503 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2504 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2505 } else { 2506 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2507 } 2508 2509 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2510 Opts.InlineVisibilityHidden = 1; 2511 2512 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2513 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2514 2515 if (Args.hasArg(OPT_ftrapv)) { 2516 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2517 // Set the handler, if one is specified. 2518 Opts.OverflowHandler = 2519 Args.getLastArgValue(OPT_ftrapv_handler); 2520 } 2521 else if (Args.hasArg(OPT_fwrapv)) 2522 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2523 2524 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2525 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2526 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2527 Opts.MSCompatibilityVersion = 0; 2528 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2529 VersionTuple VT; 2530 if (VT.tryParse(A->getValue())) 2531 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2532 << A->getValue(); 2533 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2534 VT.getMinor().getValueOr(0) * 100000 + 2535 VT.getSubminor().getValueOr(0); 2536 } 2537 2538 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2539 // is specified, or -std is set to a conforming mode. 2540 // Trigraphs are disabled by default in c++1z onwards. 2541 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2542 Opts.Trigraphs = 2543 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2544 2545 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2546 OPT_fno_dollars_in_identifiers, 2547 Opts.DollarIdents); 2548 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2549 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2550 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2551 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2552 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2553 Opts.ConstStrings); 2554 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2555 Opts.LaxVectorConversions = 0; 2556 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2557 Opts.ThreadsafeStatics = 0; 2558 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2559 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2560 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2561 2562 // -ffixed-point 2563 Opts.FixedPoint = 2564 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2565 !Opts.CPlusPlus; 2566 Opts.PaddingOnUnsignedFixedPoint = 2567 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2568 OPT_fno_padding_on_unsigned_fixed_point, 2569 /*Default=*/false) && 2570 Opts.FixedPoint; 2571 2572 // Handle exception personalities 2573 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2574 options::OPT_fseh_exceptions, 2575 options::OPT_fdwarf_exceptions); 2576 if (A) { 2577 const Option &Opt = A->getOption(); 2578 llvm::Triple T(TargetOpts.Triple); 2579 if (T.isWindowsMSVCEnvironment()) 2580 Diags.Report(diag::err_fe_invalid_exception_model) 2581 << Opt.getName() << T.str(); 2582 2583 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2584 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2585 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2586 } 2587 2588 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2589 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2590 2591 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2592 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2593 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2594 && Opts.OpenCLVersion == 200); 2595 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2596 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2597 2598 // Enable [[]] attributes in C++11 by default. 2599 Opts.DoubleSquareBracketAttributes = 2600 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2601 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11); 2602 2603 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2604 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2605 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2606 Opts.ModulesDeclUse = 2607 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2608 Opts.ModulesLocalVisibility = 2609 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2610 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2611 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2612 Opts.ModulesSearchAll = Opts.Modules && 2613 !Args.hasArg(OPT_fno_modules_search_all) && 2614 Args.hasArg(OPT_fmodules_search_all); 2615 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2616 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2617 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2618 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2619 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2620 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2621 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2622 .Case("char", 1) 2623 .Case("short", 2) 2624 .Case("int", 4) 2625 .Default(0); 2626 if (Opts.WCharSize == 0) 2627 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2628 } 2629 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2630 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2631 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2632 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2633 if (!Opts.NoBuiltin) 2634 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2635 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2636 Opts.RelaxedTemplateTemplateArgs = 2637 Args.hasArg(OPT_frelaxed_template_template_args); 2638 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2639 Opts.AlignedAllocation = 2640 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2641 Opts.AlignedAllocation); 2642 Opts.AlignedAllocationUnavailable = 2643 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2644 Opts.NewAlignOverride = 2645 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2646 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2647 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2648 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2649 << A->getValue(); 2650 Opts.NewAlignOverride = 0; 2651 } 2652 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2653 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2654 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2655 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2656 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2657 Opts.InstantiationDepth = 2658 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2659 Opts.ArrowDepth = 2660 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2661 Opts.ConstexprCallDepth = 2662 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2663 Opts.ConstexprStepLimit = 2664 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2665 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2666 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2667 Opts.NumLargeByValueCopy = 2668 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2669 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2670 Opts.ObjCConstantStringClass = 2671 Args.getLastArgValue(OPT_fconstant_string_class); 2672 Opts.ObjCDefaultSynthProperties = 2673 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2674 Opts.EncodeExtendedBlockSig = 2675 Args.hasArg(OPT_fencode_extended_block_signature); 2676 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2677 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2678 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2679 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2680 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2681 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2682 Opts.Static = Args.hasArg(OPT_static_define); 2683 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2684 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2685 || Args.hasArg(OPT_fdump_record_layouts); 2686 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2687 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2688 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2689 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2690 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2691 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2692 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2693 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2694 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2695 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2696 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2697 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2698 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ); 2699 Opts.CurrentModule = Opts.ModuleName; 2700 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2701 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2702 llvm::sort(Opts.ModuleFeatures); 2703 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2704 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2705 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2706 // is enabled. 2707 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2708 | Opts.NativeHalfArgsAndReturns; 2709 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2710 2711 // __declspec is enabled by default for the PS4 by the driver, and also 2712 // enabled for Microsoft Extensions or Borland Extensions, here. 2713 // 2714 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2715 // CUDA extension. However, it is required for supporting 2716 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2717 // been rewritten in terms of something more generic, remove the Opts.CUDA 2718 // term here. 2719 Opts.DeclSpecKeyword = 2720 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2721 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2722 2723 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2724 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2725 .Case("target", LangOptions::ASMM_Target) 2726 .Case("no", LangOptions::ASMM_Off) 2727 .Case("yes", LangOptions::ASMM_On) 2728 .Default(255)) { 2729 default: 2730 Diags.Report(diag::err_drv_invalid_value) 2731 << "-faddress-space-map-mangling=" << A->getValue(); 2732 break; 2733 case LangOptions::ASMM_Target: 2734 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2735 break; 2736 case LangOptions::ASMM_On: 2737 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2738 break; 2739 case LangOptions::ASMM_Off: 2740 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2741 break; 2742 } 2743 } 2744 2745 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2746 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2747 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2748 A->getValue()) 2749 .Case("single", 2750 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2751 .Case("multiple", 2752 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2753 .Case("virtual", 2754 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2755 .Default(LangOptions::PPTMK_BestCase); 2756 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2757 Diags.Report(diag::err_drv_invalid_value) 2758 << "-fms-memptr-rep=" << A->getValue(); 2759 2760 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2761 } 2762 2763 // Check for MS default calling conventions being specified. 2764 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2765 LangOptions::DefaultCallingConvention DefaultCC = 2766 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2767 .Case("cdecl", LangOptions::DCC_CDecl) 2768 .Case("fastcall", LangOptions::DCC_FastCall) 2769 .Case("stdcall", LangOptions::DCC_StdCall) 2770 .Case("vectorcall", LangOptions::DCC_VectorCall) 2771 .Case("regcall", LangOptions::DCC_RegCall) 2772 .Default(LangOptions::DCC_None); 2773 if (DefaultCC == LangOptions::DCC_None) 2774 Diags.Report(diag::err_drv_invalid_value) 2775 << "-fdefault-calling-conv=" << A->getValue(); 2776 2777 llvm::Triple T(TargetOpts.Triple); 2778 llvm::Triple::ArchType Arch = T.getArch(); 2779 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2780 DefaultCC == LangOptions::DCC_StdCall) && 2781 Arch != llvm::Triple::x86; 2782 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2783 DefaultCC == LangOptions::DCC_RegCall) && 2784 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2785 if (emitError) 2786 Diags.Report(diag::err_drv_argument_not_allowed_with) 2787 << A->getSpelling() << T.getTriple(); 2788 else 2789 Opts.setDefaultCallingConv(DefaultCC); 2790 } 2791 2792 // -mrtd option 2793 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2794 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2795 Diags.Report(diag::err_drv_argument_not_allowed_with) 2796 << A->getSpelling() << "-fdefault-calling-conv"; 2797 else { 2798 llvm::Triple T(TargetOpts.Triple); 2799 if (T.getArch() != llvm::Triple::x86) 2800 Diags.Report(diag::err_drv_argument_not_allowed_with) 2801 << A->getSpelling() << T.getTriple(); 2802 else 2803 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2804 } 2805 } 2806 2807 // Check if -fopenmp is specified. 2808 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2809 // Check if -fopenmp-simd is specified. 2810 bool IsSimdSpecified = 2811 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2812 /*Default=*/false); 2813 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2814 Opts.OpenMPUseTLS = 2815 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2816 Opts.OpenMPIsDevice = 2817 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2818 bool IsTargetSpecified = 2819 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2820 2821 if (Opts.OpenMP || Opts.OpenMPSimd) { 2822 if (int Version = getLastArgIntValue( 2823 Args, OPT_fopenmp_version_EQ, 2824 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 2825 Opts.OpenMP = Version; 2826 else if (IsSimdSpecified || IsTargetSpecified) 2827 Opts.OpenMP = 45; 2828 // Provide diagnostic when a given target is not expected to be an OpenMP 2829 // device or host. 2830 if (!Opts.OpenMPIsDevice) { 2831 switch (T.getArch()) { 2832 default: 2833 break; 2834 // Add unsupported host targets here: 2835 case llvm::Triple::nvptx: 2836 case llvm::Triple::nvptx64: 2837 Diags.Report(diag::err_drv_omp_host_target_not_supported) 2838 << TargetOpts.Triple; 2839 break; 2840 } 2841 } 2842 } 2843 2844 // Set the flag to prevent the implementation from emitting device exception 2845 // handling code for those requiring so. 2846 Opts.OpenMPHostCXXExceptions = Opts.Exceptions && Opts.CXXExceptions; 2847 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 2848 Opts.Exceptions = 0; 2849 Opts.CXXExceptions = 0; 2850 } 2851 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2852 Opts.OpenMPCUDANumSMs = 2853 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 2854 Opts.OpenMPCUDANumSMs, Diags); 2855 Opts.OpenMPCUDABlocksPerSM = 2856 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 2857 Opts.OpenMPCUDABlocksPerSM, Diags); 2858 } 2859 2860 // Get the OpenMP target triples if any. 2861 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2862 2863 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2864 llvm::Triple TT(A->getValue(i)); 2865 2866 if (TT.getArch() == llvm::Triple::UnknownArch || 2867 !(TT.getArch() == llvm::Triple::ppc || 2868 TT.getArch() == llvm::Triple::ppc64 || 2869 TT.getArch() == llvm::Triple::ppc64le || 2870 TT.getArch() == llvm::Triple::nvptx || 2871 TT.getArch() == llvm::Triple::nvptx64 || 2872 TT.getArch() == llvm::Triple::x86 || 2873 TT.getArch() == llvm::Triple::x86_64)) 2874 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 2875 else 2876 Opts.OMPTargetTriples.push_back(TT); 2877 } 2878 } 2879 2880 // Get OpenMP host file path if any and report if a non existent file is 2881 // found 2882 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2883 Opts.OMPHostIRFile = A->getValue(); 2884 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2885 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 2886 << Opts.OMPHostIRFile; 2887 } 2888 2889 // Set CUDA mode for OpenMP target NVPTX if specified in options 2890 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 2891 Args.hasArg(options::OPT_fopenmp_cuda_mode); 2892 2893 // Set CUDA mode for OpenMP target NVPTX if specified in options 2894 Opts.OpenMPCUDAForceFullRuntime = 2895 Opts.OpenMPIsDevice && T.isNVPTX() && 2896 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 2897 2898 // Record whether the __DEPRECATED define was requested. 2899 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2900 OPT_fno_deprecated_macro, 2901 Opts.Deprecated); 2902 2903 // FIXME: Eliminate this dependency. 2904 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2905 OptSize = getOptimizationLevelSize(Args); 2906 Opts.Optimize = Opt != 0; 2907 Opts.OptimizeSize = OptSize != 0; 2908 2909 // This is the __NO_INLINE__ define, which just depends on things like the 2910 // optimization level and -fno-inline, not actually whether the backend has 2911 // inlining enabled. 2912 Opts.NoInlineDefine = !Opts.Optimize; 2913 if (Arg *InlineArg = Args.getLastArg( 2914 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2915 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2916 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2917 Opts.NoInlineDefine = true; 2918 2919 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2920 Args.hasArg(OPT_cl_fast_relaxed_math); 2921 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2922 Args.hasArg(OPT_cl_finite_math_only) || 2923 Args.hasArg(OPT_cl_fast_relaxed_math); 2924 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2925 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2926 Args.hasArg(OPT_cl_fast_relaxed_math); 2927 2928 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2929 StringRef Val = A->getValue(); 2930 if (Val == "fast") 2931 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2932 else if (Val == "on") 2933 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2934 else if (Val == "off") 2935 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2936 else 2937 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2938 } 2939 2940 Opts.RetainCommentsFromSystemHeaders = 2941 Args.hasArg(OPT_fretain_comments_from_system_headers); 2942 2943 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2944 switch (SSP) { 2945 default: 2946 Diags.Report(diag::err_drv_invalid_value) 2947 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2948 break; 2949 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2950 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2951 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2952 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2953 } 2954 2955 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 2956 StringRef Val = A->getValue(); 2957 if (Val == "uninitialized") 2958 Opts.setTrivialAutoVarInit( 2959 LangOptions::TrivialAutoVarInitKind::Uninitialized); 2960 else if (Val == "zero") 2961 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 2962 else if (Val == "pattern") 2963 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 2964 else 2965 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2966 } 2967 2968 // Parse -fsanitize= arguments. 2969 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2970 Diags, Opts.Sanitize); 2971 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2972 Opts.SanitizeAddressFieldPadding = 2973 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2974 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2975 2976 // -fxray-instrument 2977 Opts.XRayInstrument = 2978 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2979 2980 // -fxray-always-emit-customevents 2981 Opts.XRayAlwaysEmitCustomEvents = 2982 Args.hasFlag(OPT_fxray_always_emit_customevents, 2983 OPT_fnoxray_always_emit_customevents, false); 2984 2985 // -fxray-always-emit-typedevents 2986 Opts.XRayAlwaysEmitTypedEvents = 2987 Args.hasFlag(OPT_fxray_always_emit_typedevents, 2988 OPT_fnoxray_always_emit_customevents, false); 2989 2990 // -fxray-{always,never}-instrument= filenames. 2991 Opts.XRayAlwaysInstrumentFiles = 2992 Args.getAllArgValues(OPT_fxray_always_instrument); 2993 Opts.XRayNeverInstrumentFiles = 2994 Args.getAllArgValues(OPT_fxray_never_instrument); 2995 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 2996 2997 // -fforce-emit-vtables 2998 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 2999 3000 // -fallow-editor-placeholders 3001 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3002 3003 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3004 3005 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3006 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3007 3008 StringRef Ver = A->getValue(); 3009 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3010 unsigned Major, Minor = 0; 3011 3012 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3013 // y or y.0 (4 <= y <= current version). 3014 if (!VerParts.first.startswith("0") && 3015 !VerParts.first.getAsInteger(10, Major) && 3016 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3017 (Major == 3 ? VerParts.second.size() == 1 && 3018 !VerParts.second.getAsInteger(10, Minor) 3019 : VerParts.first.size() == Ver.size() || 3020 VerParts.second == "0")) { 3021 // Got a valid version number. 3022 if (Major == 3 && Minor <= 8) 3023 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3024 else if (Major <= 4) 3025 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3026 else if (Major <= 6) 3027 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3028 else if (Major <= 7) 3029 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3030 } else if (Ver != "latest") { 3031 Diags.Report(diag::err_drv_invalid_value) 3032 << A->getAsString(Args) << A->getValue(); 3033 } 3034 } 3035 3036 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3037 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3038 } 3039 3040 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3041 switch (Action) { 3042 case frontend::ASTDeclList: 3043 case frontend::ASTDump: 3044 case frontend::ASTPrint: 3045 case frontend::ASTView: 3046 case frontend::EmitAssembly: 3047 case frontend::EmitBC: 3048 case frontend::EmitHTML: 3049 case frontend::EmitLLVM: 3050 case frontend::EmitLLVMOnly: 3051 case frontend::EmitCodeGenOnly: 3052 case frontend::EmitObj: 3053 case frontend::FixIt: 3054 case frontend::GenerateModule: 3055 case frontend::GenerateModuleInterface: 3056 case frontend::GenerateHeaderModule: 3057 case frontend::GeneratePCH: 3058 case frontend::ParseSyntaxOnly: 3059 case frontend::ModuleFileInfo: 3060 case frontend::VerifyPCH: 3061 case frontend::PluginAction: 3062 case frontend::RewriteObjC: 3063 case frontend::RewriteTest: 3064 case frontend::RunAnalysis: 3065 case frontend::TemplightDump: 3066 case frontend::MigrateSource: 3067 return false; 3068 3069 case frontend::DumpCompilerOptions: 3070 case frontend::DumpRawTokens: 3071 case frontend::DumpTokens: 3072 case frontend::InitOnly: 3073 case frontend::PrintPreamble: 3074 case frontend::PrintPreprocessedInput: 3075 case frontend::RewriteMacros: 3076 case frontend::RunPreprocessorOnly: 3077 return true; 3078 } 3079 llvm_unreachable("invalid frontend action"); 3080 } 3081 3082 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3083 DiagnosticsEngine &Diags, 3084 frontend::ActionKind Action) { 3085 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 3086 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3087 Args.hasArg(OPT_pch_through_hdrstop_use); 3088 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3089 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ); 3090 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3091 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3092 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3093 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3094 3095 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3096 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3097 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3098 3099 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3100 StringRef Value(A->getValue()); 3101 size_t Comma = Value.find(','); 3102 unsigned Bytes = 0; 3103 unsigned EndOfLine = 0; 3104 3105 if (Comma == StringRef::npos || 3106 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3107 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3108 Diags.Report(diag::err_drv_preamble_format); 3109 else { 3110 Opts.PrecompiledPreambleBytes.first = Bytes; 3111 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3112 } 3113 } 3114 3115 // Add the __CET__ macro if a CFProtection option is set. 3116 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3117 StringRef Name = A->getValue(); 3118 if (Name == "branch") 3119 Opts.addMacroDef("__CET__=1"); 3120 else if (Name == "return") 3121 Opts.addMacroDef("__CET__=2"); 3122 else if (Name == "full") 3123 Opts.addMacroDef("__CET__=3"); 3124 } 3125 3126 // Add macros from the command line. 3127 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3128 if (A->getOption().matches(OPT_D)) 3129 Opts.addMacroDef(A->getValue()); 3130 else 3131 Opts.addMacroUndef(A->getValue()); 3132 } 3133 3134 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3135 3136 // Add the ordered list of -includes. 3137 for (const auto *A : Args.filtered(OPT_include)) 3138 Opts.Includes.emplace_back(A->getValue()); 3139 3140 for (const auto *A : Args.filtered(OPT_chain_include)) 3141 Opts.ChainedIncludes.emplace_back(A->getValue()); 3142 3143 for (const auto *A : Args.filtered(OPT_remap_file)) { 3144 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3145 3146 if (Split.second.empty()) { 3147 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3148 continue; 3149 } 3150 3151 Opts.addRemappedFile(Split.first, Split.second); 3152 } 3153 3154 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3155 StringRef Name = A->getValue(); 3156 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3157 .Case("libc++", ARCXX_libcxx) 3158 .Case("libstdc++", ARCXX_libstdcxx) 3159 .Case("none", ARCXX_nolib) 3160 .Default(~0U); 3161 if (Library == ~0U) 3162 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3163 else 3164 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3165 } 3166 3167 // Always avoid lexing editor placeholders when we're just running the 3168 // preprocessor as we never want to emit the 3169 // "editor placeholder in source file" error in PP only mode. 3170 if (isStrictlyPreprocessorAction(Action)) 3171 Opts.LexEditorPlaceholders = false; 3172 } 3173 3174 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3175 ArgList &Args, 3176 frontend::ActionKind Action) { 3177 if (isStrictlyPreprocessorAction(Action)) 3178 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3179 else 3180 Opts.ShowCPP = 0; 3181 3182 Opts.ShowComments = Args.hasArg(OPT_C); 3183 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3184 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3185 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3186 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3187 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3188 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3189 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3190 } 3191 3192 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3193 DiagnosticsEngine &Diags) { 3194 Opts.CodeModel = getCodeModel(Args, Diags); 3195 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 3196 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3197 StringRef Value = A->getValue(); 3198 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3199 .Case("default", llvm::EABI::Default) 3200 .Case("4", llvm::EABI::EABI4) 3201 .Case("5", llvm::EABI::EABI5) 3202 .Case("gnu", llvm::EABI::GNU) 3203 .Default(llvm::EABI::Unknown); 3204 if (EABIVersion == llvm::EABI::Unknown) 3205 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3206 << Value; 3207 else 3208 Opts.EABIVersion = EABIVersion; 3209 } 3210 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 3211 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 3212 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3213 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 3214 Opts.Triple = Args.getLastArgValue(OPT_triple); 3215 // Use the default target triple if unspecified. 3216 if (Opts.Triple.empty()) 3217 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3218 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3219 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3220 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3221 Opts.NVPTXUseShortPointers = Args.hasFlag( 3222 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3223 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3224 llvm::VersionTuple Version; 3225 if (Version.tryParse(A->getValue())) 3226 Diags.Report(diag::err_drv_invalid_value) 3227 << A->getAsString(Args) << A->getValue(); 3228 else 3229 Opts.SDKVersion = Version; 3230 } 3231 } 3232 3233 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3234 const char *const *ArgBegin, 3235 const char *const *ArgEnd, 3236 DiagnosticsEngine &Diags) { 3237 bool Success = true; 3238 3239 // Parse the arguments. 3240 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 3241 const unsigned IncludedFlagsBitmask = options::CC1Option; 3242 unsigned MissingArgIndex, MissingArgCount; 3243 InputArgList Args = 3244 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 3245 MissingArgCount, IncludedFlagsBitmask); 3246 LangOptions &LangOpts = *Res.getLangOpts(); 3247 3248 // Check for missing argument error. 3249 if (MissingArgCount) { 3250 Diags.Report(diag::err_drv_missing_argument) 3251 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3252 Success = false; 3253 } 3254 3255 // Issue errors on unknown arguments. 3256 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3257 auto ArgString = A->getAsString(Args); 3258 std::string Nearest; 3259 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3260 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3261 else 3262 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3263 << ArgString << Nearest; 3264 Success = false; 3265 } 3266 3267 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3268 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3269 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3270 Success &= 3271 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3272 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3273 ParseCommentArgs(LangOpts.CommentOpts, Args); 3274 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3275 // FIXME: We shouldn't have to pass the DashX option around here 3276 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3277 LangOpts.IsHeaderFile); 3278 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3279 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3280 Res.getTargetOpts(), Res.getFrontendOpts()); 3281 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3282 Res.getFileSystemOpts().WorkingDir); 3283 llvm::Triple T(Res.getTargetOpts().Triple); 3284 if (DashX.getFormat() == InputKind::Precompiled || 3285 DashX.getLanguage() == InputKind::LLVM_IR) { 3286 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3287 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3288 // what the input type is. 3289 if (Args.hasArg(OPT_fobjc_arc)) 3290 LangOpts.ObjCAutoRefCount = 1; 3291 // PIClevel and PIELevel are needed during code generation and this should be 3292 // set regardless of the input type. 3293 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3294 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3295 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3296 Diags, LangOpts.Sanitize); 3297 } else { 3298 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3299 // FIXME: Should we really be calling this for an InputKind::Asm input? 3300 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3301 Res.getPreprocessorOpts(), Diags); 3302 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3303 LangOpts.ObjCExceptions = 1; 3304 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3305 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3306 // preprocessed input as we don't expect it to be used with -std=libc++ 3307 // anyway. 3308 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3309 } 3310 } 3311 3312 LangOpts.FunctionAlignment = 3313 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3314 3315 if (LangOpts.CUDA) { 3316 // During CUDA device-side compilation, the aux triple is the 3317 // triple used for host compilation. 3318 if (LangOpts.CUDAIsDevice) 3319 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3320 } 3321 3322 // Set the triple of the host for OpenMP device compile. 3323 if (LangOpts.OpenMPIsDevice) 3324 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3325 3326 // FIXME: Override value name discarding when asan or msan is used because the 3327 // backend passes depend on the name of the alloca in order to print out 3328 // names. 3329 Res.getCodeGenOpts().DiscardValueNames &= 3330 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3331 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3332 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3333 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3334 3335 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3336 Res.getFrontendOpts().ProgramAction); 3337 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3338 Res.getFrontendOpts().ProgramAction); 3339 3340 // Turn on -Wspir-compat for SPIR target. 3341 auto Arch = T.getArch(); 3342 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 3343 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3344 } 3345 3346 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3347 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3348 !Res.getLangOpts()->Sanitize.empty()) { 3349 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3350 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3351 } 3352 return Success; 3353 } 3354 3355 std::string CompilerInvocation::getModuleHash() const { 3356 // Note: For QoI reasons, the things we use as a hash here should all be 3357 // dumped via the -module-info flag. 3358 using llvm::hash_code; 3359 using llvm::hash_value; 3360 using llvm::hash_combine; 3361 3362 // Start the signature with the compiler version. 3363 // FIXME: We'd rather use something more cryptographically sound than 3364 // CityHash, but this will do for now. 3365 hash_code code = hash_value(getClangFullRepositoryVersion()); 3366 3367 // Extend the signature with the language options 3368 #define LANGOPT(Name, Bits, Default, Description) \ 3369 code = hash_combine(code, LangOpts->Name); 3370 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3371 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3372 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3373 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3374 #include "clang/Basic/LangOptions.def" 3375 3376 for (StringRef Feature : LangOpts->ModuleFeatures) 3377 code = hash_combine(code, Feature); 3378 3379 // Extend the signature with the target options. 3380 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3381 TargetOpts->ABI); 3382 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3383 code = hash_combine(code, FeatureAsWritten); 3384 3385 // Extend the signature with preprocessor options. 3386 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3387 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3388 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3389 3390 for (const auto &I : getPreprocessorOpts().Macros) { 3391 // If we're supposed to ignore this macro for the purposes of modules, 3392 // don't put it into the hash. 3393 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3394 // Check whether we're ignoring this macro. 3395 StringRef MacroDef = I.first; 3396 if (hsOpts.ModulesIgnoreMacros.count( 3397 llvm::CachedHashString(MacroDef.split('=').first))) 3398 continue; 3399 } 3400 3401 code = hash_combine(code, I.first, I.second); 3402 } 3403 3404 // Extend the signature with the sysroot and other header search options. 3405 code = hash_combine(code, hsOpts.Sysroot, 3406 hsOpts.ModuleFormat, 3407 hsOpts.UseDebugInfo, 3408 hsOpts.UseBuiltinIncludes, 3409 hsOpts.UseStandardSystemIncludes, 3410 hsOpts.UseStandardCXXIncludes, 3411 hsOpts.UseLibcxx, 3412 hsOpts.ModulesValidateDiagnosticOptions); 3413 code = hash_combine(code, hsOpts.ResourceDir); 3414 3415 // Extend the signature with the user build path. 3416 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3417 3418 // Extend the signature with the module file extensions. 3419 const FrontendOptions &frontendOpts = getFrontendOpts(); 3420 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3421 code = ext->hashExtension(code); 3422 } 3423 3424 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3425 // affects the debug info in the PCM. 3426 if (getCodeGenOpts().DebugTypeExtRefs) 3427 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3428 code = hash_combine(code, KeyValue.first, KeyValue.second); 3429 3430 // Extend the signature with the enabled sanitizers, if at least one is 3431 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3432 SanitizerSet SanHash = LangOpts->Sanitize; 3433 SanHash.clear(getPPTransparentSanitizers()); 3434 if (!SanHash.empty()) 3435 code = hash_combine(code, SanHash.Mask); 3436 3437 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3438 } 3439 3440 template<typename IntTy> 3441 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 3442 IntTy Default, 3443 DiagnosticsEngine *Diags) { 3444 IntTy Res = Default; 3445 if (Arg *A = Args.getLastArg(Id)) { 3446 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 3447 if (Diags) 3448 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 3449 << A->getValue(); 3450 } 3451 } 3452 return Res; 3453 } 3454 3455 namespace clang { 3456 3457 // Declared in clang/Frontend/Utils.h. 3458 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 3459 DiagnosticsEngine *Diags) { 3460 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 3461 } 3462 3463 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 3464 uint64_t Default, 3465 DiagnosticsEngine *Diags) { 3466 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 3467 } 3468 3469 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3470 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3471 DiagnosticsEngine &Diags) { 3472 return createVFSFromCompilerInvocation(CI, Diags, 3473 llvm::vfs::getRealFileSystem()); 3474 } 3475 3476 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3477 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3478 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3479 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3480 return BaseFS; 3481 3482 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3483 // earlier vfs files are on the bottom 3484 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3485 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3486 Result->getBufferForFile(File); 3487 if (!Buffer) { 3488 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3489 continue; 3490 } 3491 3492 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3493 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3494 /*DiagContext*/ nullptr, Result); 3495 if (!FS) { 3496 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3497 continue; 3498 } 3499 3500 Result = FS; 3501 } 3502 return Result; 3503 } 3504 3505 } // namespace clang 3506