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/LangStandard.h" 37 #include "clang/Frontend/MigratorOptions.h" 38 #include "clang/Frontend/PreprocessorOutputOptions.h" 39 #include "clang/Frontend/Utils.h" 40 #include "clang/Lex/HeaderSearchOptions.h" 41 #include "clang/Lex/PreprocessorOptions.h" 42 #include "clang/Sema/CodeCompleteOptions.h" 43 #include "clang/Serialization/ModuleFileExtension.h" 44 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 45 #include "llvm/ADT/APInt.h" 46 #include "llvm/ADT/ArrayRef.h" 47 #include "llvm/ADT/CachedHashString.h" 48 #include "llvm/ADT/Hashing.h" 49 #include "llvm/ADT/None.h" 50 #include "llvm/ADT/Optional.h" 51 #include "llvm/ADT/SmallString.h" 52 #include "llvm/ADT/SmallVector.h" 53 #include "llvm/ADT/StringRef.h" 54 #include "llvm/ADT/StringSwitch.h" 55 #include "llvm/ADT/Triple.h" 56 #include "llvm/ADT/Twine.h" 57 #include "llvm/IR/DebugInfoMetadata.h" 58 #include "llvm/Linker/Linker.h" 59 #include "llvm/MC/MCTargetOptions.h" 60 #include "llvm/Option/Arg.h" 61 #include "llvm/Option/ArgList.h" 62 #include "llvm/Option/OptSpecifier.h" 63 #include "llvm/Option/OptTable.h" 64 #include "llvm/Option/Option.h" 65 #include "llvm/ProfileData/InstrProfReader.h" 66 #include "llvm/Support/CodeGen.h" 67 #include "llvm/Support/Compiler.h" 68 #include "llvm/Support/Error.h" 69 #include "llvm/Support/ErrorHandling.h" 70 #include "llvm/Support/ErrorOr.h" 71 #include "llvm/Support/FileSystem.h" 72 #include "llvm/Support/Host.h" 73 #include "llvm/Support/MathExtras.h" 74 #include "llvm/Support/MemoryBuffer.h" 75 #include "llvm/Support/Path.h" 76 #include "llvm/Support/Process.h" 77 #include "llvm/Support/Regex.h" 78 #include "llvm/Support/VersionTuple.h" 79 #include "llvm/Support/VirtualFileSystem.h" 80 #include "llvm/Support/raw_ostream.h" 81 #include "llvm/Target/TargetOptions.h" 82 #include <algorithm> 83 #include <atomic> 84 #include <cassert> 85 #include <cstddef> 86 #include <cstring> 87 #include <memory> 88 #include <string> 89 #include <tuple> 90 #include <utility> 91 #include <vector> 92 93 using namespace clang; 94 using namespace driver; 95 using namespace options; 96 using namespace llvm::opt; 97 98 //===----------------------------------------------------------------------===// 99 // Initialization. 100 //===----------------------------------------------------------------------===// 101 102 CompilerInvocationBase::CompilerInvocationBase() 103 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 104 DiagnosticOpts(new DiagnosticOptions()), 105 HeaderSearchOpts(new HeaderSearchOptions()), 106 PreprocessorOpts(new PreprocessorOptions()) {} 107 108 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 109 : LangOpts(new LangOptions(*X.getLangOpts())), 110 TargetOpts(new TargetOptions(X.getTargetOpts())), 111 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 112 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 113 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 114 115 CompilerInvocationBase::~CompilerInvocationBase() = default; 116 117 //===----------------------------------------------------------------------===// 118 // Deserialization (from args) 119 //===----------------------------------------------------------------------===// 120 121 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 122 DiagnosticsEngine &Diags) { 123 unsigned DefaultOpt = llvm::CodeGenOpt::None; 124 if (IK.getLanguage() == InputKind::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 125 DefaultOpt = llvm::CodeGenOpt::Default; 126 127 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 128 if (A->getOption().matches(options::OPT_O0)) 129 return llvm::CodeGenOpt::None; 130 131 if (A->getOption().matches(options::OPT_Ofast)) 132 return llvm::CodeGenOpt::Aggressive; 133 134 assert(A->getOption().matches(options::OPT_O)); 135 136 StringRef S(A->getValue()); 137 if (S == "s" || S == "z" || S.empty()) 138 return llvm::CodeGenOpt::Default; 139 140 if (S == "g") 141 return llvm::CodeGenOpt::Less; 142 143 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 144 } 145 146 return DefaultOpt; 147 } 148 149 static unsigned getOptimizationLevelSize(ArgList &Args) { 150 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 151 if (A->getOption().matches(options::OPT_O)) { 152 switch (A->getValue()[0]) { 153 default: 154 return 0; 155 case 's': 156 return 1; 157 case 'z': 158 return 2; 159 } 160 } 161 } 162 return 0; 163 } 164 165 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 166 OptSpecifier GroupWithValue, 167 std::vector<std::string> &Diagnostics) { 168 for (auto *A : Args.filtered(Group)) { 169 if (A->getOption().getKind() == Option::FlagClass) { 170 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 171 // its name (minus the "W" or "R" at the beginning) to the warning list. 172 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 173 } else if (A->getOption().matches(GroupWithValue)) { 174 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 175 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 176 } else { 177 // Otherwise, add its value (for OPT_W_Joined and similar). 178 for (const auto *Arg : A->getValues()) 179 Diagnostics.emplace_back(Arg); 180 } 181 } 182 } 183 184 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 185 // it won't verify the input. 186 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 187 DiagnosticsEngine *Diags); 188 189 static void getAllNoBuiltinFuncValues(ArgList &Args, 190 std::vector<std::string> &Funcs) { 191 SmallVector<const char *, 8> Values; 192 for (const auto &Arg : Args) { 193 const Option &O = Arg->getOption(); 194 if (O.matches(options::OPT_fno_builtin_)) { 195 const char *FuncName = Arg->getValue(); 196 if (Builtin::Context::isBuiltinFunc(FuncName)) 197 Values.push_back(FuncName); 198 } 199 } 200 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 201 } 202 203 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 204 DiagnosticsEngine &Diags) { 205 bool Success = true; 206 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 207 StringRef Name = A->getValue(); 208 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 209 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 210 .Case(CMDFLAG, NAME##Model) 211 #include "clang/StaticAnalyzer/Core/Analyses.def" 212 .Default(NumStores); 213 if (Value == NumStores) { 214 Diags.Report(diag::err_drv_invalid_value) 215 << A->getAsString(Args) << Name; 216 Success = false; 217 } else { 218 Opts.AnalysisStoreOpt = Value; 219 } 220 } 221 222 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 223 StringRef Name = A->getValue(); 224 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 225 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 226 .Case(CMDFLAG, NAME##Model) 227 #include "clang/StaticAnalyzer/Core/Analyses.def" 228 .Default(NumConstraints); 229 if (Value == NumConstraints) { 230 Diags.Report(diag::err_drv_invalid_value) 231 << A->getAsString(Args) << Name; 232 Success = false; 233 } else { 234 Opts.AnalysisConstraintsOpt = Value; 235 } 236 } 237 238 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 239 StringRef Name = A->getValue(); 240 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 241 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 242 .Case(CMDFLAG, PD_##NAME) 243 #include "clang/StaticAnalyzer/Core/Analyses.def" 244 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 245 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 246 Diags.Report(diag::err_drv_invalid_value) 247 << A->getAsString(Args) << Name; 248 Success = false; 249 } else { 250 Opts.AnalysisDiagOpt = Value; 251 } 252 } 253 254 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 255 StringRef Name = A->getValue(); 256 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 257 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 258 .Case(CMDFLAG, NAME) 259 #include "clang/StaticAnalyzer/Core/Analyses.def" 260 .Default(NumPurgeModes); 261 if (Value == NumPurgeModes) { 262 Diags.Report(diag::err_drv_invalid_value) 263 << A->getAsString(Args) << Name; 264 Success = false; 265 } else { 266 Opts.AnalysisPurgeOpt = Value; 267 } 268 } 269 270 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 271 StringRef Name = A->getValue(); 272 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 273 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 274 .Case(CMDFLAG, NAME) 275 #include "clang/StaticAnalyzer/Core/Analyses.def" 276 .Default(NumInliningModes); 277 if (Value == NumInliningModes) { 278 Diags.Report(diag::err_drv_invalid_value) 279 << A->getAsString(Args) << Name; 280 Success = false; 281 } else { 282 Opts.InliningMode = Value; 283 } 284 } 285 286 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 287 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 288 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 289 Opts.ShouldEmitErrorsOnInvalidConfigValue = 290 /* negated */!llvm::StringSwitch<bool>( 291 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 292 .Case("true", true) 293 .Case("false", false) 294 .Default(false); 295 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 296 297 Opts.visualizeExplodedGraphWithGraphViz = 298 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 299 Opts.DumpExplodedGraphTo = Args.getLastArgValue(OPT_analyzer_dump_egraph); 300 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 301 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 302 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 303 Opts.AnalyzeNestedBlocks = 304 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 305 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 306 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 307 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 308 Opts.maxBlockVisitOnPath = 309 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 310 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 311 Opts.InlineMaxStackDepth = 312 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 313 Opts.InlineMaxStackDepth, Diags); 314 315 Opts.CheckersControlList.clear(); 316 for (const Arg *A : 317 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 318 A->claim(); 319 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 320 // We can have a list of comma separated checker names, e.g: 321 // '-analyzer-checker=cocoa,unix' 322 StringRef checkerList = A->getValue(); 323 SmallVector<StringRef, 4> checkers; 324 checkerList.split(checkers, ","); 325 for (auto checker : checkers) 326 Opts.CheckersControlList.emplace_back(checker, enable); 327 } 328 329 // Go through the analyzer configuration options. 330 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 331 332 // We can have a list of comma separated config names, e.g: 333 // '-analyzer-config key1=val1,key2=val2' 334 StringRef configList = A->getValue(); 335 SmallVector<StringRef, 4> configVals; 336 configList.split(configVals, ","); 337 for (const auto &configVal : configVals) { 338 StringRef key, val; 339 std::tie(key, val) = configVal.split("="); 340 if (val.empty()) { 341 Diags.Report(SourceLocation(), 342 diag::err_analyzer_config_no_value) << configVal; 343 Success = false; 344 break; 345 } 346 if (val.find('=') != StringRef::npos) { 347 Diags.Report(SourceLocation(), 348 diag::err_analyzer_config_multiple_values) 349 << configVal; 350 Success = false; 351 break; 352 } 353 354 // TODO: Check checker options too, possibly in CheckerRegistry. 355 // Leave unknown non-checker configs unclaimed. 356 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 357 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 358 Diags.Report(diag::err_analyzer_config_unknown) << key; 359 continue; 360 } 361 362 A->claim(); 363 Opts.Config[key] = val; 364 } 365 } 366 367 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 368 parseAnalyzerConfigs(Opts, &Diags); 369 else 370 parseAnalyzerConfigs(Opts, nullptr); 371 372 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 373 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 374 if (i != 0) 375 os << " "; 376 os << Args.getArgString(i); 377 } 378 os.flush(); 379 380 return Success; 381 } 382 383 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 384 StringRef OptionName, StringRef DefaultVal) { 385 return Config.insert({OptionName, DefaultVal}).first->second; 386 } 387 388 static void initOption(AnalyzerOptions::ConfigTable &Config, 389 DiagnosticsEngine *Diags, 390 StringRef &OptionField, StringRef Name, 391 StringRef DefaultVal) { 392 // String options may be known to invalid (e.g. if the expected string is a 393 // file name, but the file does not exist), those will have to be checked in 394 // parseConfigs. 395 OptionField = getStringOption(Config, Name, DefaultVal); 396 } 397 398 static void initOption(AnalyzerOptions::ConfigTable &Config, 399 DiagnosticsEngine *Diags, 400 bool &OptionField, StringRef Name, bool DefaultVal) { 401 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 402 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 403 .Case("true", true) 404 .Case("false", false) 405 .Default(None); 406 407 if (!PossiblyInvalidVal) { 408 if (Diags) 409 Diags->Report(diag::err_analyzer_config_invalid_input) 410 << Name << "a boolean"; 411 else 412 OptionField = DefaultVal; 413 } else 414 OptionField = PossiblyInvalidVal.getValue(); 415 } 416 417 static void initOption(AnalyzerOptions::ConfigTable &Config, 418 DiagnosticsEngine *Diags, 419 unsigned &OptionField, StringRef Name, 420 unsigned DefaultVal) { 421 422 OptionField = DefaultVal; 423 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 424 .getAsInteger(10, OptionField); 425 if (Diags && HasFailed) 426 Diags->Report(diag::err_analyzer_config_invalid_input) 427 << Name << "an unsigned"; 428 } 429 430 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 431 DiagnosticsEngine *Diags) { 432 // TODO: There's no need to store the entire configtable, it'd be plenty 433 // enough tostore checker options. 434 435 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 436 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 437 438 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 439 SHALLOW_VAL, DEEP_VAL) \ 440 switch (AnOpts.getUserMode()) { \ 441 case UMK_Shallow: \ 442 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 443 break; \ 444 case UMK_Deep: \ 445 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 446 break; \ 447 } \ 448 449 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 450 #undef ANALYZER_OPTION 451 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 452 453 // At this point, AnalyzerOptions is configured. Let's validate some options. 454 455 if (!Diags) 456 return; 457 458 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 459 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 460 << "a filename"; 461 462 if (!AnOpts.ModelPath.empty() && 463 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 464 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 465 << "a filename"; 466 } 467 468 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 469 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 470 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 471 return true; 472 } 473 474 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 475 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 476 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 477 } 478 479 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 480 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 481 StringRef Value = A->getValue(); 482 if (Value == "small" || Value == "kernel" || Value == "medium" || 483 Value == "large" || Value == "tiny") 484 return Value; 485 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 486 } 487 return "default"; 488 } 489 490 static llvm::Reloc::Model getRelocModel(ArgList &Args, 491 DiagnosticsEngine &Diags) { 492 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 493 StringRef Value = A->getValue(); 494 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 495 .Case("static", llvm::Reloc::Static) 496 .Case("pic", llvm::Reloc::PIC_) 497 .Case("ropi", llvm::Reloc::ROPI) 498 .Case("rwpi", llvm::Reloc::RWPI) 499 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 500 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 501 .Default(None); 502 if (RM.hasValue()) 503 return *RM; 504 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 505 } 506 return llvm::Reloc::PIC_; 507 } 508 509 /// Create a new Regex instance out of the string value in \p RpassArg. 510 /// It returns a pointer to the newly generated Regex instance. 511 static std::shared_ptr<llvm::Regex> 512 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 513 Arg *RpassArg) { 514 StringRef Val = RpassArg->getValue(); 515 std::string RegexError; 516 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 517 if (!Pattern->isValid(RegexError)) { 518 Diags.Report(diag::err_drv_optimization_remark_pattern) 519 << RegexError << RpassArg->getAsString(Args); 520 Pattern.reset(); 521 } 522 return Pattern; 523 } 524 525 static bool parseDiagnosticLevelMask(StringRef FlagName, 526 const std::vector<std::string> &Levels, 527 DiagnosticsEngine *Diags, 528 DiagnosticLevelMask &M) { 529 bool Success = true; 530 for (const auto &Level : Levels) { 531 DiagnosticLevelMask const PM = 532 llvm::StringSwitch<DiagnosticLevelMask>(Level) 533 .Case("note", DiagnosticLevelMask::Note) 534 .Case("remark", DiagnosticLevelMask::Remark) 535 .Case("warning", DiagnosticLevelMask::Warning) 536 .Case("error", DiagnosticLevelMask::Error) 537 .Default(DiagnosticLevelMask::None); 538 if (PM == DiagnosticLevelMask::None) { 539 Success = false; 540 if (Diags) 541 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 542 } 543 M = M | PM; 544 } 545 return Success; 546 } 547 548 static void parseSanitizerKinds(StringRef FlagName, 549 const std::vector<std::string> &Sanitizers, 550 DiagnosticsEngine &Diags, SanitizerSet &S) { 551 for (const auto &Sanitizer : Sanitizers) { 552 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 553 if (K == 0) 554 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 555 else 556 S.set(K, true); 557 } 558 } 559 560 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 561 ArgList &Args, DiagnosticsEngine &D, 562 XRayInstrSet &S) { 563 llvm::SmallVector<StringRef, 2> BundleParts; 564 llvm::SplitString(Bundle, BundleParts, ","); 565 for (const auto B : BundleParts) { 566 auto Mask = parseXRayInstrValue(B); 567 if (Mask == XRayInstrKind::None) 568 if (B != "none") 569 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 570 else 571 S.Mask = Mask; 572 else if (Mask == XRayInstrKind::All) 573 S.Mask = Mask; 574 else 575 S.set(Mask, true); 576 } 577 } 578 579 // Set the profile kind for fprofile-instrument. 580 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 581 DiagnosticsEngine &Diags) { 582 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 583 if (A == nullptr) 584 return; 585 StringRef S = A->getValue(); 586 unsigned I = llvm::StringSwitch<unsigned>(S) 587 .Case("none", CodeGenOptions::ProfileNone) 588 .Case("clang", CodeGenOptions::ProfileClangInstr) 589 .Case("llvm", CodeGenOptions::ProfileIRInstr) 590 .Default(~0U); 591 if (I == ~0U) { 592 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 593 << S; 594 return; 595 } 596 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 597 Opts.setProfileInstr(Instrumentor); 598 } 599 600 // Set the profile kind using fprofile-instrument-use-path. 601 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 602 const Twine &ProfileName) { 603 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 604 // In error, return silently and let Clang PGOUse report the error message. 605 if (auto E = ReaderOrErr.takeError()) { 606 llvm::consumeError(std::move(E)); 607 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 608 return; 609 } 610 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 611 std::move(ReaderOrErr.get()); 612 if (PGOReader->isIRLevelProfile()) 613 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 614 else 615 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 616 } 617 618 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 619 DiagnosticsEngine &Diags, 620 const TargetOptions &TargetOpts, 621 const FrontendOptions &FrontendOpts) { 622 bool Success = true; 623 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 624 625 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 626 // TODO: This could be done in Driver 627 unsigned MaxOptLevel = 3; 628 if (OptimizationLevel > MaxOptLevel) { 629 // If the optimization level is not supported, fall back on the default 630 // optimization 631 Diags.Report(diag::warn_drv_optimization_value) 632 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 633 OptimizationLevel = MaxOptLevel; 634 } 635 Opts.OptimizationLevel = OptimizationLevel; 636 637 // At O0 we want to fully disable inlining outside of cases marked with 638 // 'alwaysinline' that are required for correctness. 639 Opts.setInlining((Opts.OptimizationLevel == 0) 640 ? CodeGenOptions::OnlyAlwaysInlining 641 : CodeGenOptions::NormalInlining); 642 // Explicit inlining flags can disable some or all inlining even at 643 // optimization levels above zero. 644 if (Arg *InlineArg = Args.getLastArg( 645 options::OPT_finline_functions, options::OPT_finline_hint_functions, 646 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 647 if (Opts.OptimizationLevel > 0) { 648 const Option &InlineOpt = InlineArg->getOption(); 649 if (InlineOpt.matches(options::OPT_finline_functions)) 650 Opts.setInlining(CodeGenOptions::NormalInlining); 651 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 652 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 653 else 654 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 655 } 656 } 657 658 Opts.ExperimentalNewPassManager = Args.hasFlag( 659 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 660 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 661 662 Opts.DebugPassManager = 663 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 664 /* Default */ false); 665 666 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 667 StringRef Name = A->getValue(); 668 if (Name == "Accelerate") 669 Opts.setVecLib(CodeGenOptions::Accelerate); 670 else if (Name == "SVML") 671 Opts.setVecLib(CodeGenOptions::SVML); 672 else if (Name == "none") 673 Opts.setVecLib(CodeGenOptions::NoLibrary); 674 else 675 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 676 } 677 678 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 679 unsigned Val = 680 llvm::StringSwitch<unsigned>(A->getValue()) 681 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 682 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 683 .Case("limited", codegenoptions::LimitedDebugInfo) 684 .Case("standalone", codegenoptions::FullDebugInfo) 685 .Default(~0U); 686 if (Val == ~0U) 687 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 688 << A->getValue(); 689 else 690 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 691 } 692 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 693 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 694 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 695 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 696 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 697 .Default(~0U); 698 if (Val == ~0U) 699 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 700 << A->getValue(); 701 else 702 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 703 } 704 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 705 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 706 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 707 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 708 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 709 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 710 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 711 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 712 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 713 714 if (Arg *A = 715 Args.getLastArg(OPT_enable_split_dwarf, OPT_enable_split_dwarf_EQ)) { 716 if (A->getOption().matches(options::OPT_enable_split_dwarf)) { 717 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 718 } else { 719 StringRef Name = A->getValue(); 720 if (Name == "single") 721 Opts.setSplitDwarfMode(CodeGenOptions::SingleFileFission); 722 else if (Name == "split") 723 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 724 else 725 Diags.Report(diag::err_drv_invalid_value) 726 << A->getAsString(Args) << Name; 727 } 728 } 729 730 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 731 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 732 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 733 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 734 735 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 736 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 737 738 if (const Arg *A = 739 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 740 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 741 742 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 743 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 744 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 745 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 746 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 747 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 748 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 749 OPT_fuse_register_sized_bitfield_access); 750 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 751 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 752 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 753 Args.hasArg(OPT_new_struct_path_tbaa); 754 Opts.FineGrainedBitfieldAccesses = 755 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 756 OPT_fno_fine_grained_bitfield_accesses, false); 757 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 758 Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line); 759 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 760 Opts.NoCommon = Args.hasArg(OPT_fno_common); 761 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 762 Opts.OptimizeSize = getOptimizationLevelSize(Args); 763 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 764 Args.hasArg(OPT_ffreestanding)); 765 if (Opts.SimplifyLibCalls) 766 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 767 Opts.UnrollLoops = 768 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 769 (Opts.OptimizationLevel > 1)); 770 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 771 772 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 773 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 774 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 775 Opts.DebugInfoForProfiling = Args.hasFlag( 776 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 777 Opts.DebugNameTable = static_cast<unsigned>( 778 Args.hasArg(OPT_ggnu_pubnames) 779 ? llvm::DICompileUnit::DebugNameTableKind::GNU 780 : Args.hasArg(OPT_gpubnames) 781 ? llvm::DICompileUnit::DebugNameTableKind::Default 782 : llvm::DICompileUnit::DebugNameTableKind::None); 783 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 784 785 setPGOInstrumentor(Opts, Args, Diags); 786 Opts.InstrProfileOutput = 787 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 788 Opts.ProfileInstrumentUsePath = 789 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 790 if (!Opts.ProfileInstrumentUsePath.empty()) 791 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 792 Opts.ProfileRemappingFile = 793 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ); 794 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 795 Diags.Report(diag::err_drv_argument_only_allowed_with) 796 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 797 << "-fexperimental-new-pass-manager"; 798 } 799 800 Opts.CoverageMapping = 801 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 802 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 803 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 804 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 805 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 806 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 807 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 808 Opts.RegisterGlobalDtorsWithAtExit = 809 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 810 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 811 Opts.CodeModel = TargetOpts.CodeModel; 812 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 813 Opts.DisableFPElim = 814 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 815 Opts.DisableFree = Args.hasArg(OPT_disable_free); 816 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 817 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 818 Opts.NoEscapingBlockTailCalls = 819 Args.hasArg(OPT_fno_escaping_block_tail_calls); 820 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 821 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 822 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 823 Args.hasArg(OPT_cl_fast_relaxed_math); 824 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 825 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 826 Args.hasArg(OPT_cl_finite_math_only) || 827 Args.hasArg(OPT_cl_fast_relaxed_math)); 828 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 829 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 830 Args.hasArg(OPT_cl_finite_math_only) || 831 Args.hasArg(OPT_cl_fast_relaxed_math)); 832 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 833 Args.hasArg(OPT_cl_no_signed_zeros) || 834 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 835 Args.hasArg(OPT_cl_fast_relaxed_math)); 836 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 837 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) || 838 (Args.hasArg(OPT_fcuda_is_device) && 839 Args.hasArg(OPT_fcuda_flush_denormals_to_zero)); 840 Opts.CorrectlyRoundedDivSqrt = 841 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 842 Opts.UniformWGSize = 843 Args.hasArg(OPT_cl_uniform_work_group_size); 844 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 845 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 846 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 847 Opts.StrictFloatCastOverflow = 848 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 849 850 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 851 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 852 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 853 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 854 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 855 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 856 Opts.IncrementalLinkerCompatible = 857 Args.hasArg(OPT_mincremental_linker_compatible); 858 Opts.PIECopyRelocations = 859 Args.hasArg(OPT_mpie_copy_relocations); 860 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 861 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 862 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 863 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 864 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 865 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 866 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 867 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 868 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 869 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 870 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 871 Args.hasArg(OPT_cl_fast_relaxed_math); 872 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 873 Opts.RelocationModel = getRelocModel(Args, Diags); 874 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 875 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 876 Diags.Report(diag::err_drv_invalid_value) 877 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 878 << Opts.ThreadModel; 879 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 880 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 881 882 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 883 OPT_fno_function_sections, false); 884 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 885 OPT_fno_data_sections, false); 886 Opts.StackSizeSection = 887 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 888 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 889 OPT_fno_unique_section_names, true); 890 891 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 892 893 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 894 895 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 896 897 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 898 899 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 900 Opts.PrepareForThinLTO = false; 901 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 902 StringRef S = A->getValue(); 903 if (S == "thin") 904 Opts.PrepareForThinLTO = true; 905 else if (S != "full") 906 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 907 } 908 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 909 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 910 if (IK.getLanguage() != InputKind::LLVM_IR) 911 Diags.Report(diag::err_drv_argument_only_allowed_with) 912 << A->getAsString(Args) << "-x ir"; 913 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 914 } 915 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 916 Opts.SaveTempsFilePrefix = 917 llvm::StringSwitch<std::string>(A->getValue()) 918 .Case("obj", FrontendOpts.OutputFile) 919 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 920 921 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 922 923 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 924 925 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 926 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 927 928 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 929 930 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 931 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 932 933 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 934 935 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 936 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 937 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 938 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 939 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 940 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 941 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 942 Opts.CoverageNoFunctionNamesInData = 943 Args.hasArg(OPT_coverage_no_function_names_in_data); 944 Opts.ProfileFilterFiles = 945 Args.getLastArgValue(OPT_fprofile_filter_files_EQ); 946 Opts.ProfileExcludeFiles = 947 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ); 948 Opts.CoverageExitBlockBeforeBody = 949 Args.hasArg(OPT_coverage_exit_block_before_body); 950 if (Args.hasArg(OPT_coverage_version_EQ)) { 951 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 952 if (CoverageVersion.size() != 4) { 953 Diags.Report(diag::err_drv_invalid_value) 954 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 955 << CoverageVersion; 956 } else { 957 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 958 } 959 } 960 } 961 // Handle -fembed-bitcode option. 962 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 963 StringRef Name = A->getValue(); 964 unsigned Model = llvm::StringSwitch<unsigned>(Name) 965 .Case("off", CodeGenOptions::Embed_Off) 966 .Case("all", CodeGenOptions::Embed_All) 967 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 968 .Case("marker", CodeGenOptions::Embed_Marker) 969 .Default(~0U); 970 if (Model == ~0U) { 971 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 972 Success = false; 973 } else 974 Opts.setEmbedBitcode( 975 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 976 } 977 // FIXME: For backend options that are not yet recorded as function 978 // attributes in the IR, keep track of them so we can embed them in a 979 // separate data section and use them when building the bitcode. 980 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 981 for (const auto &A : Args) { 982 // Do not encode output and input. 983 if (A->getOption().getID() == options::OPT_o || 984 A->getOption().getID() == options::OPT_INPUT || 985 A->getOption().getID() == options::OPT_x || 986 A->getOption().getID() == options::OPT_fembed_bitcode || 987 (A->getOption().getGroup().isValid() && 988 A->getOption().getGroup().getID() == options::OPT_W_Group)) 989 continue; 990 ArgStringList ASL; 991 A->render(Args, ASL); 992 for (const auto &arg : ASL) { 993 StringRef ArgStr(arg); 994 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 995 // using \00 to separate each commandline options. 996 Opts.CmdArgs.push_back('\0'); 997 } 998 } 999 } 1000 1001 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1002 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1003 Opts.InstrumentFunctionsAfterInlining = 1004 Args.hasArg(OPT_finstrument_functions_after_inlining); 1005 Opts.InstrumentFunctionEntryBare = 1006 Args.hasArg(OPT_finstrument_function_entry_bare); 1007 1008 Opts.XRayInstrumentFunctions = 1009 Args.hasArg(OPT_fxray_instrument); 1010 Opts.XRayAlwaysEmitCustomEvents = 1011 Args.hasArg(OPT_fxray_always_emit_customevents); 1012 Opts.XRayAlwaysEmitTypedEvents = 1013 Args.hasArg(OPT_fxray_always_emit_typedevents); 1014 Opts.XRayInstructionThreshold = 1015 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1016 1017 auto XRayInstrBundles = 1018 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1019 if (XRayInstrBundles.empty()) 1020 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1021 else 1022 for (const auto &A : XRayInstrBundles) 1023 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1024 Diags, Opts.XRayInstrumentationBundle); 1025 1026 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1027 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1028 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1029 1030 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1031 StringRef Name = A->getValue(); 1032 if (Name == "full") { 1033 Opts.CFProtectionReturn = 1; 1034 Opts.CFProtectionBranch = 1; 1035 } else if (Name == "return") 1036 Opts.CFProtectionReturn = 1; 1037 else if (Name == "branch") 1038 Opts.CFProtectionBranch = 1; 1039 else if (Name != "none") { 1040 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1041 Success = false; 1042 } 1043 } 1044 1045 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1046 OPT_compress_debug_sections_EQ)) { 1047 if (A->getOption().getID() == OPT_compress_debug_sections) { 1048 // TODO: be more clever about the compression type auto-detection 1049 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1050 } else { 1051 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1052 .Case("none", llvm::DebugCompressionType::None) 1053 .Case("zlib", llvm::DebugCompressionType::Z) 1054 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1055 .Default(llvm::DebugCompressionType::None); 1056 Opts.setCompressDebugSections(DCT); 1057 } 1058 } 1059 1060 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1061 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1062 for (auto *A : 1063 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1064 CodeGenOptions::BitcodeFileToLink F; 1065 F.Filename = A->getValue(); 1066 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1067 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1068 // When linking CUDA bitcode, propagate function attributes so that 1069 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1070 F.PropagateAttrs = true; 1071 F.Internalize = true; 1072 } 1073 Opts.LinkBitcodeFiles.push_back(F); 1074 } 1075 Opts.SanitizeCoverageType = 1076 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1077 Opts.SanitizeCoverageIndirectCalls = 1078 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1079 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1080 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1081 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1082 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1083 Opts.SanitizeCoverage8bitCounters = 1084 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1085 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1086 Opts.SanitizeCoverageTracePCGuard = 1087 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1088 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1089 Opts.SanitizeCoverageInline8bitCounters = 1090 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1091 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1092 Opts.SanitizeCoverageStackDepth = 1093 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1094 Opts.SanitizeMemoryTrackOrigins = 1095 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1096 Opts.SanitizeMemoryUseAfterDtor = 1097 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1098 OPT_fno_sanitize_memory_use_after_dtor, 1099 false); 1100 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1101 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1102 Opts.SanitizeCfiICallGeneralizePointers = 1103 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1104 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1105 if (Arg *A = Args.getLastArg( 1106 OPT_fsanitize_address_poison_custom_array_cookie, 1107 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1108 Opts.SanitizeAddressPoisonCustomArrayCookie = 1109 A->getOption().getID() == 1110 OPT_fsanitize_address_poison_custom_array_cookie; 1111 } 1112 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1113 OPT_fno_sanitize_address_use_after_scope)) { 1114 Opts.SanitizeAddressUseAfterScope = 1115 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1116 } 1117 Opts.SanitizeAddressGlobalsDeadStripping = 1118 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1119 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1120 OPT_fno_sanitize_address_use_odr_indicator)) { 1121 Opts.SanitizeAddressUseOdrIndicator = 1122 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1123 } 1124 Opts.SSPBufferSize = 1125 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1126 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1127 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1128 StringRef Val = A->getValue(); 1129 unsigned StackAlignment = Opts.StackAlignment; 1130 Val.getAsInteger(10, StackAlignment); 1131 Opts.StackAlignment = StackAlignment; 1132 } 1133 1134 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1135 StringRef Val = A->getValue(); 1136 unsigned StackProbeSize = Opts.StackProbeSize; 1137 Val.getAsInteger(0, StackProbeSize); 1138 Opts.StackProbeSize = StackProbeSize; 1139 } 1140 1141 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1142 1143 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1144 StringRef Name = A->getValue(); 1145 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1146 .Case("legacy", CodeGenOptions::Legacy) 1147 .Case("non-legacy", CodeGenOptions::NonLegacy) 1148 .Case("mixed", CodeGenOptions::Mixed) 1149 .Default(~0U); 1150 if (Method == ~0U) { 1151 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1152 Success = false; 1153 } else { 1154 Opts.setObjCDispatchMethod( 1155 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1156 } 1157 } 1158 1159 1160 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1161 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1162 1163 if (Args.getLastArg(OPT_femulated_tls) || 1164 Args.getLastArg(OPT_fno_emulated_tls)) { 1165 Opts.ExplicitEmulatedTLS = true; 1166 Opts.EmulatedTLS = 1167 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1168 } 1169 1170 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1171 StringRef Name = A->getValue(); 1172 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1173 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1174 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1175 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1176 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1177 .Default(~0U); 1178 if (Model == ~0U) { 1179 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1180 Success = false; 1181 } else { 1182 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1183 } 1184 } 1185 1186 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1187 StringRef Val = A->getValue(); 1188 if (Val == "ieee") 1189 Opts.FPDenormalMode = "ieee"; 1190 else if (Val == "preserve-sign") 1191 Opts.FPDenormalMode = "preserve-sign"; 1192 else if (Val == "positive-zero") 1193 Opts.FPDenormalMode = "positive-zero"; 1194 else 1195 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1196 } 1197 1198 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1199 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1200 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1201 } else { 1202 assert(A->getOption().matches(OPT_freg_struct_return)); 1203 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1204 } 1205 } 1206 1207 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1208 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1209 bool NeedLocTracking = false; 1210 1211 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 1212 if (!Opts.OptRecordFile.empty()) 1213 NeedLocTracking = true; 1214 1215 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1216 Opts.OptimizationRemarkPattern = 1217 GenerateOptimizationRemarkRegex(Diags, Args, A); 1218 NeedLocTracking = true; 1219 } 1220 1221 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1222 Opts.OptimizationRemarkMissedPattern = 1223 GenerateOptimizationRemarkRegex(Diags, Args, A); 1224 NeedLocTracking = true; 1225 } 1226 1227 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1228 Opts.OptimizationRemarkAnalysisPattern = 1229 GenerateOptimizationRemarkRegex(Diags, Args, A); 1230 NeedLocTracking = true; 1231 } 1232 1233 Opts.DiagnosticsWithHotness = 1234 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1235 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1236 bool UsingProfile = UsingSampleProfile || 1237 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1238 1239 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1240 // An IR file will contain PGO as metadata 1241 IK.getLanguage() != InputKind::LLVM_IR) 1242 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1243 << "-fdiagnostics-show-hotness"; 1244 1245 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1246 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1247 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1248 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1249 << "-fdiagnostics-hotness-threshold="; 1250 1251 // If the user requested to use a sample profile for PGO, then the 1252 // backend will need to track source location information so the profile 1253 // can be incorporated into the IR. 1254 if (UsingSampleProfile) 1255 NeedLocTracking = true; 1256 1257 // If the user requested a flag that requires source locations available in 1258 // the backend, make sure that the backend tracks source location information. 1259 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1260 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1261 1262 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1263 1264 // Parse -fsanitize-recover= arguments. 1265 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1266 parseSanitizerKinds("-fsanitize-recover=", 1267 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1268 Opts.SanitizeRecover); 1269 parseSanitizerKinds("-fsanitize-trap=", 1270 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1271 Opts.SanitizeTrap); 1272 1273 Opts.CudaGpuBinaryFileName = 1274 Args.getLastArgValue(OPT_fcuda_include_gpubinary); 1275 1276 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1277 1278 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1279 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1280 1281 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1282 1283 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1284 1285 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1286 StringRef SignScope = A->getValue(); 1287 1288 if (SignScope.equals_lower("none")) 1289 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1290 else if (SignScope.equals_lower("all")) 1291 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1292 else if (SignScope.equals_lower("non-leaf")) 1293 Opts.setSignReturnAddress( 1294 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1295 else 1296 Diags.Report(diag::err_drv_invalid_value) 1297 << A->getAsString(Args) << SignScope; 1298 1299 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1300 StringRef SignKey = A->getValue(); 1301 if (!SignScope.empty() && !SignKey.empty()) { 1302 if (SignKey.equals_lower("a_key")) 1303 Opts.setSignReturnAddressKey( 1304 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1305 else if (SignKey.equals_lower("b_key")) 1306 Opts.setSignReturnAddressKey( 1307 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1308 else 1309 Diags.Report(diag::err_drv_invalid_value) 1310 << A->getAsString(Args) << SignKey; 1311 } 1312 } 1313 } 1314 1315 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1316 1317 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1318 1319 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1320 1321 return Success; 1322 } 1323 1324 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1325 ArgList &Args) { 1326 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1327 Opts.Targets = Args.getAllArgValues(OPT_MT); 1328 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1329 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1330 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1331 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1332 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1333 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1334 if (Args.hasArg(OPT_show_includes)) { 1335 // Writing both /showIncludes and preprocessor output to stdout 1336 // would produce interleaved output, so use stderr for /showIncludes. 1337 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1338 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1339 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1340 else 1341 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1342 } else { 1343 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1344 } 1345 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1346 Opts.ModuleDependencyOutputDir = 1347 Args.getLastArgValue(OPT_module_dependency_dir); 1348 if (Args.hasArg(OPT_MV)) 1349 Opts.OutputFormat = DependencyOutputFormat::NMake; 1350 // Add sanitizer blacklists as extra dependencies. 1351 // They won't be discovered by the regular preprocessor, so 1352 // we let make / ninja to know about this implicit dependency. 1353 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1354 // Only the -fmodule-file=<file> form. 1355 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1356 StringRef Val = A->getValue(); 1357 if (Val.find('=') == StringRef::npos) 1358 Opts.ExtraDeps.push_back(Val); 1359 } 1360 } 1361 1362 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1363 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1364 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1365 // Support both clang's -f[no-]color-diagnostics and gcc's 1366 // -f[no-]diagnostics-colors[=never|always|auto]. 1367 enum { 1368 Colors_On, 1369 Colors_Off, 1370 Colors_Auto 1371 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1372 for (auto *A : Args) { 1373 const Option &O = A->getOption(); 1374 if (O.matches(options::OPT_fcolor_diagnostics) || 1375 O.matches(options::OPT_fdiagnostics_color)) { 1376 ShowColors = Colors_On; 1377 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1378 O.matches(options::OPT_fno_diagnostics_color)) { 1379 ShowColors = Colors_Off; 1380 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1381 StringRef Value(A->getValue()); 1382 if (Value == "always") 1383 ShowColors = Colors_On; 1384 else if (Value == "never") 1385 ShowColors = Colors_Off; 1386 else if (Value == "auto") 1387 ShowColors = Colors_Auto; 1388 } 1389 } 1390 return ShowColors == Colors_On || 1391 (ShowColors == Colors_Auto && 1392 llvm::sys::Process::StandardErrHasColors()); 1393 } 1394 1395 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1396 DiagnosticsEngine *Diags) { 1397 bool Success = true; 1398 for (const auto &Prefix : VerifyPrefixes) { 1399 // Every prefix must start with a letter and contain only alphanumeric 1400 // characters, hyphens, and underscores. 1401 auto BadChar = std::find_if(Prefix.begin(), Prefix.end(), 1402 [](char C){return !isAlphanumeric(C) 1403 && C != '-' && C != '_';}); 1404 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1405 Success = false; 1406 if (Diags) { 1407 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1408 Diags->Report(diag::note_drv_verify_prefix_spelling); 1409 } 1410 } 1411 } 1412 return Success; 1413 } 1414 1415 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1416 DiagnosticsEngine *Diags, 1417 bool DefaultDiagColor, bool DefaultShowOpt) { 1418 bool Success = true; 1419 1420 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1421 if (Arg *A = 1422 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1423 Opts.DiagnosticSerializationFile = A->getValue(); 1424 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1425 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1426 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1427 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1428 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1429 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1430 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1431 OPT_fno_show_column, 1432 /*Default=*/true); 1433 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1434 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1435 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1436 Opts.ShowOptionNames = 1437 Args.hasFlag(OPT_fdiagnostics_show_option, 1438 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1439 1440 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1441 1442 // Default behavior is to not to show note include stacks. 1443 Opts.ShowNoteIncludeStack = false; 1444 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1445 OPT_fno_diagnostics_show_note_include_stack)) 1446 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1447 Opts.ShowNoteIncludeStack = true; 1448 1449 StringRef ShowOverloads = 1450 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1451 if (ShowOverloads == "best") 1452 Opts.setShowOverloads(Ovl_Best); 1453 else if (ShowOverloads == "all") 1454 Opts.setShowOverloads(Ovl_All); 1455 else { 1456 Success = false; 1457 if (Diags) 1458 Diags->Report(diag::err_drv_invalid_value) 1459 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1460 << ShowOverloads; 1461 } 1462 1463 StringRef ShowCategory = 1464 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1465 if (ShowCategory == "none") 1466 Opts.ShowCategories = 0; 1467 else if (ShowCategory == "id") 1468 Opts.ShowCategories = 1; 1469 else if (ShowCategory == "name") 1470 Opts.ShowCategories = 2; 1471 else { 1472 Success = false; 1473 if (Diags) 1474 Diags->Report(diag::err_drv_invalid_value) 1475 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1476 << ShowCategory; 1477 } 1478 1479 StringRef Format = 1480 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1481 if (Format == "clang") 1482 Opts.setFormat(DiagnosticOptions::Clang); 1483 else if (Format == "msvc") 1484 Opts.setFormat(DiagnosticOptions::MSVC); 1485 else if (Format == "msvc-fallback") { 1486 Opts.setFormat(DiagnosticOptions::MSVC); 1487 Opts.CLFallbackMode = true; 1488 } else if (Format == "vi") 1489 Opts.setFormat(DiagnosticOptions::Vi); 1490 else { 1491 Success = false; 1492 if (Diags) 1493 Diags->Report(diag::err_drv_invalid_value) 1494 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1495 << Format; 1496 } 1497 1498 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1499 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1500 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1501 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1502 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1503 if (Args.hasArg(OPT_verify)) 1504 Opts.VerifyPrefixes.push_back("expected"); 1505 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1506 // then sort it to prepare for fast lookup using std::binary_search. 1507 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1508 Opts.VerifyDiagnostics = false; 1509 Success = false; 1510 } 1511 else 1512 llvm::sort(Opts.VerifyPrefixes); 1513 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1514 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1515 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1516 Diags, DiagMask); 1517 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1518 DiagMask = DiagnosticLevelMask::All; 1519 Opts.setVerifyIgnoreUnexpected(DiagMask); 1520 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1521 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1522 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1523 Opts.MacroBacktraceLimit = 1524 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1525 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1526 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1527 Args, OPT_ftemplate_backtrace_limit, 1528 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1529 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1530 Args, OPT_fconstexpr_backtrace_limit, 1531 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1532 Opts.SpellCheckingLimit = getLastArgIntValue( 1533 Args, OPT_fspell_checking_limit, 1534 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1535 Opts.SnippetLineLimit = getLastArgIntValue( 1536 Args, OPT_fcaret_diagnostics_max_lines, 1537 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1538 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1539 DiagnosticOptions::DefaultTabStop, Diags); 1540 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1541 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1542 if (Diags) 1543 Diags->Report(diag::warn_ignoring_ftabstop_value) 1544 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1545 } 1546 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1547 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1548 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1549 1550 return Success; 1551 } 1552 1553 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1554 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1555 } 1556 1557 /// Parse the argument to the -ftest-module-file-extension 1558 /// command-line argument. 1559 /// 1560 /// \returns true on error, false on success. 1561 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1562 std::string &BlockName, 1563 unsigned &MajorVersion, 1564 unsigned &MinorVersion, 1565 bool &Hashed, 1566 std::string &UserInfo) { 1567 SmallVector<StringRef, 5> Args; 1568 Arg.split(Args, ':', 5); 1569 if (Args.size() < 5) 1570 return true; 1571 1572 BlockName = Args[0]; 1573 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1574 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1575 if (Args[3].getAsInteger(2, Hashed)) return true; 1576 if (Args.size() > 4) 1577 UserInfo = Args[4]; 1578 return false; 1579 } 1580 1581 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1582 DiagnosticsEngine &Diags, 1583 bool &IsHeaderFile) { 1584 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1585 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1586 switch (A->getOption().getID()) { 1587 default: 1588 llvm_unreachable("Invalid option in group!"); 1589 case OPT_ast_list: 1590 Opts.ProgramAction = frontend::ASTDeclList; break; 1591 case OPT_ast_dump: 1592 case OPT_ast_dump_all: 1593 case OPT_ast_dump_lookups: 1594 Opts.ProgramAction = frontend::ASTDump; break; 1595 case OPT_ast_print: 1596 Opts.ProgramAction = frontend::ASTPrint; break; 1597 case OPT_ast_view: 1598 Opts.ProgramAction = frontend::ASTView; break; 1599 case OPT_compiler_options_dump: 1600 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1601 case OPT_dump_raw_tokens: 1602 Opts.ProgramAction = frontend::DumpRawTokens; break; 1603 case OPT_dump_tokens: 1604 Opts.ProgramAction = frontend::DumpTokens; break; 1605 case OPT_S: 1606 Opts.ProgramAction = frontend::EmitAssembly; break; 1607 case OPT_emit_llvm_bc: 1608 Opts.ProgramAction = frontend::EmitBC; break; 1609 case OPT_emit_html: 1610 Opts.ProgramAction = frontend::EmitHTML; break; 1611 case OPT_emit_llvm: 1612 Opts.ProgramAction = frontend::EmitLLVM; break; 1613 case OPT_emit_llvm_only: 1614 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1615 case OPT_emit_codegen_only: 1616 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1617 case OPT_emit_obj: 1618 Opts.ProgramAction = frontend::EmitObj; break; 1619 case OPT_fixit_EQ: 1620 Opts.FixItSuffix = A->getValue(); 1621 LLVM_FALLTHROUGH; 1622 case OPT_fixit: 1623 Opts.ProgramAction = frontend::FixIt; break; 1624 case OPT_emit_module: 1625 Opts.ProgramAction = frontend::GenerateModule; break; 1626 case OPT_emit_module_interface: 1627 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1628 case OPT_emit_header_module: 1629 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1630 case OPT_emit_pch: 1631 Opts.ProgramAction = frontend::GeneratePCH; break; 1632 case OPT_init_only: 1633 Opts.ProgramAction = frontend::InitOnly; break; 1634 case OPT_fsyntax_only: 1635 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1636 case OPT_module_file_info: 1637 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1638 case OPT_verify_pch: 1639 Opts.ProgramAction = frontend::VerifyPCH; break; 1640 case OPT_print_preamble: 1641 Opts.ProgramAction = frontend::PrintPreamble; break; 1642 case OPT_E: 1643 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1644 case OPT_templight_dump: 1645 Opts.ProgramAction = frontend::TemplightDump; break; 1646 case OPT_rewrite_macros: 1647 Opts.ProgramAction = frontend::RewriteMacros; break; 1648 case OPT_rewrite_objc: 1649 Opts.ProgramAction = frontend::RewriteObjC; break; 1650 case OPT_rewrite_test: 1651 Opts.ProgramAction = frontend::RewriteTest; break; 1652 case OPT_analyze: 1653 Opts.ProgramAction = frontend::RunAnalysis; break; 1654 case OPT_migrate: 1655 Opts.ProgramAction = frontend::MigrateSource; break; 1656 case OPT_Eonly: 1657 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1658 } 1659 } 1660 1661 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1662 Opts.Plugins.emplace_back(A->getValue(0)); 1663 Opts.ProgramAction = frontend::PluginAction; 1664 Opts.ActionName = A->getValue(); 1665 } 1666 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1667 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1668 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1669 1670 for (const std::string &Arg : 1671 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1672 std::string BlockName; 1673 unsigned MajorVersion; 1674 unsigned MinorVersion; 1675 bool Hashed; 1676 std::string UserInfo; 1677 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1678 MinorVersion, Hashed, UserInfo)) { 1679 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1680 1681 continue; 1682 } 1683 1684 // Add the testing module file extension. 1685 Opts.ModuleFileExtensions.push_back( 1686 std::make_shared<TestModuleFileExtension>( 1687 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1688 } 1689 1690 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1691 Opts.CodeCompletionAt = 1692 ParsedSourceLocation::FromString(A->getValue()); 1693 if (Opts.CodeCompletionAt.FileName.empty()) 1694 Diags.Report(diag::err_drv_invalid_value) 1695 << A->getAsString(Args) << A->getValue(); 1696 } 1697 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1698 1699 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1700 Opts.Plugins = Args.getAllArgValues(OPT_load); 1701 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1702 Opts.ShowHelp = Args.hasArg(OPT_help); 1703 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1704 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1705 Opts.ShowVersion = Args.hasArg(OPT_version); 1706 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1707 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1708 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1709 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1710 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1711 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1712 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1713 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1714 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1715 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1716 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1717 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1718 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1719 // Only the -fmodule-file=<file> form. 1720 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1721 StringRef Val = A->getValue(); 1722 if (Val.find('=') == StringRef::npos) 1723 Opts.ModuleFiles.push_back(Val); 1724 } 1725 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1726 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1727 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1728 1729 Opts.CodeCompleteOpts.IncludeMacros 1730 = Args.hasArg(OPT_code_completion_macros); 1731 Opts.CodeCompleteOpts.IncludeCodePatterns 1732 = Args.hasArg(OPT_code_completion_patterns); 1733 Opts.CodeCompleteOpts.IncludeGlobals 1734 = !Args.hasArg(OPT_no_code_completion_globals); 1735 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1736 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1737 Opts.CodeCompleteOpts.IncludeBriefComments 1738 = Args.hasArg(OPT_code_completion_brief_comments); 1739 Opts.CodeCompleteOpts.IncludeFixIts 1740 = Args.hasArg(OPT_code_completion_with_fixits); 1741 1742 Opts.OverrideRecordLayoutsFile 1743 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1744 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple); 1745 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1746 1747 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1748 OPT_arcmt_modify, 1749 OPT_arcmt_migrate)) { 1750 switch (A->getOption().getID()) { 1751 default: 1752 llvm_unreachable("missed a case"); 1753 case OPT_arcmt_check: 1754 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1755 break; 1756 case OPT_arcmt_modify: 1757 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1758 break; 1759 case OPT_arcmt_migrate: 1760 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1761 break; 1762 } 1763 } 1764 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1765 Opts.ARCMTMigrateReportOut 1766 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1767 Opts.ARCMTMigrateEmitARCErrors 1768 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1769 1770 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1771 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1772 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1773 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1774 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1775 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1776 if (Args.hasArg(OPT_objcmt_migrate_property)) 1777 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1778 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1779 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1780 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1781 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1782 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1783 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1784 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1785 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1786 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1787 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1788 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1789 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1790 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1791 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1792 if (Args.hasArg(OPT_objcmt_atomic_property)) 1793 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1794 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1795 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1796 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1797 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1798 if (Args.hasArg(OPT_objcmt_migrate_all)) 1799 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1800 1801 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1802 1803 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1804 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1805 Diags.Report(diag::err_drv_argument_not_allowed_with) 1806 << "ARC migration" << "ObjC migration"; 1807 } 1808 1809 InputKind DashX(InputKind::Unknown); 1810 if (const Arg *A = Args.getLastArg(OPT_x)) { 1811 StringRef XValue = A->getValue(); 1812 1813 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1814 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1815 bool Preprocessed = XValue.consume_back("-cpp-output"); 1816 bool ModuleMap = XValue.consume_back("-module-map"); 1817 IsHeaderFile = 1818 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1819 1820 // Principal languages. 1821 DashX = llvm::StringSwitch<InputKind>(XValue) 1822 .Case("c", InputKind::C) 1823 .Case("cl", InputKind::OpenCL) 1824 .Case("cuda", InputKind::CUDA) 1825 .Case("hip", InputKind::HIP) 1826 .Case("c++", InputKind::CXX) 1827 .Case("objective-c", InputKind::ObjC) 1828 .Case("objective-c++", InputKind::ObjCXX) 1829 .Case("renderscript", InputKind::RenderScript) 1830 .Default(InputKind::Unknown); 1831 1832 // "objc[++]-cpp-output" is an acceptable synonym for 1833 // "objective-c[++]-cpp-output". 1834 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1835 DashX = llvm::StringSwitch<InputKind>(XValue) 1836 .Case("objc", InputKind::ObjC) 1837 .Case("objc++", InputKind::ObjCXX) 1838 .Default(InputKind::Unknown); 1839 1840 // Some special cases cannot be combined with suffixes. 1841 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1842 DashX = llvm::StringSwitch<InputKind>(XValue) 1843 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1844 .Case("assembler-with-cpp", InputKind::Asm) 1845 .Cases("ast", "pcm", 1846 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1847 .Case("ir", InputKind::LLVM_IR) 1848 .Default(InputKind::Unknown); 1849 1850 if (DashX.isUnknown()) 1851 Diags.Report(diag::err_drv_invalid_value) 1852 << A->getAsString(Args) << A->getValue(); 1853 1854 if (Preprocessed) 1855 DashX = DashX.getPreprocessed(); 1856 if (ModuleMap) 1857 DashX = DashX.withFormat(InputKind::ModuleMap); 1858 } 1859 1860 // '-' is the default input if none is given. 1861 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1862 Opts.Inputs.clear(); 1863 if (Inputs.empty()) 1864 Inputs.push_back("-"); 1865 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1866 InputKind IK = DashX; 1867 if (IK.isUnknown()) { 1868 IK = FrontendOptions::getInputKindForExtension( 1869 StringRef(Inputs[i]).rsplit('.').second); 1870 // FIXME: Warn on this? 1871 if (IK.isUnknown()) 1872 IK = InputKind::C; 1873 // FIXME: Remove this hack. 1874 if (i == 0) 1875 DashX = IK; 1876 } 1877 1878 // The -emit-module action implicitly takes a module map. 1879 if (Opts.ProgramAction == frontend::GenerateModule && 1880 IK.getFormat() == InputKind::Source) 1881 IK = IK.withFormat(InputKind::ModuleMap); 1882 1883 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1884 } 1885 1886 return DashX; 1887 } 1888 1889 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1890 void *MainAddr) { 1891 std::string ClangExecutable = 1892 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1893 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1894 1895 // Compute the path to the resource directory. 1896 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1897 SmallString<128> P(Dir); 1898 if (ClangResourceDir != "") 1899 llvm::sys::path::append(P, ClangResourceDir); 1900 else 1901 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1902 "clang", CLANG_VERSION_STRING); 1903 1904 return P.str(); 1905 } 1906 1907 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1908 const std::string &WorkingDir) { 1909 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1910 Opts.Verbose = Args.hasArg(OPT_v); 1911 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1912 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1913 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1914 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1915 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1916 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1917 1918 // Canonicalize -fmodules-cache-path before storing it. 1919 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1920 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1921 if (WorkingDir.empty()) 1922 llvm::sys::fs::make_absolute(P); 1923 else 1924 llvm::sys::fs::make_absolute(WorkingDir, P); 1925 } 1926 llvm::sys::path::remove_dots(P); 1927 Opts.ModuleCachePath = P.str(); 1928 1929 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1930 // Only the -fmodule-file=<name>=<file> form. 1931 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1932 StringRef Val = A->getValue(); 1933 if (Val.find('=') != StringRef::npos) 1934 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1935 } 1936 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 1937 Opts.AddPrebuiltModulePath(A->getValue()); 1938 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1939 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1940 Opts.ModulesValidateDiagnosticOptions = 1941 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1942 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1943 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1944 Opts.ModuleCachePruneInterval = 1945 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1946 Opts.ModuleCachePruneAfter = 1947 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1948 Opts.ModulesValidateOncePerBuildSession = 1949 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1950 Opts.BuildSessionTimestamp = 1951 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1952 Opts.ModulesValidateSystemHeaders = 1953 Args.hasArg(OPT_fmodules_validate_system_headers); 1954 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1955 Opts.ModuleFormat = A->getValue(); 1956 1957 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1958 StringRef MacroDef = A->getValue(); 1959 Opts.ModulesIgnoreMacros.insert( 1960 llvm::CachedHashString(MacroDef.split('=').first)); 1961 } 1962 1963 // Add -I..., -F..., and -index-header-map options in order. 1964 bool IsIndexHeaderMap = false; 1965 bool IsSysrootSpecified = 1966 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1967 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1968 if (A->getOption().matches(OPT_index_header_map)) { 1969 // -index-header-map applies to the next -I or -F. 1970 IsIndexHeaderMap = true; 1971 continue; 1972 } 1973 1974 frontend::IncludeDirGroup Group = 1975 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1976 1977 bool IsFramework = A->getOption().matches(OPT_F); 1978 std::string Path = A->getValue(); 1979 1980 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1981 SmallString<32> Buffer; 1982 llvm::sys::path::append(Buffer, Opts.Sysroot, 1983 llvm::StringRef(A->getValue()).substr(1)); 1984 Path = Buffer.str(); 1985 } 1986 1987 Opts.AddPath(Path, Group, IsFramework, 1988 /*IgnoreSysroot*/ true); 1989 IsIndexHeaderMap = false; 1990 } 1991 1992 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1993 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1994 for (const auto *A : 1995 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1996 if (A->getOption().matches(OPT_iprefix)) 1997 Prefix = A->getValue(); 1998 else if (A->getOption().matches(OPT_iwithprefix)) 1999 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2000 else 2001 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2002 } 2003 2004 for (const auto *A : Args.filtered(OPT_idirafter)) 2005 Opts.AddPath(A->getValue(), frontend::After, false, true); 2006 for (const auto *A : Args.filtered(OPT_iquote)) 2007 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2008 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2009 Opts.AddPath(A->getValue(), frontend::System, false, 2010 !A->getOption().matches(OPT_iwithsysroot)); 2011 for (const auto *A : Args.filtered(OPT_iframework)) 2012 Opts.AddPath(A->getValue(), frontend::System, true, true); 2013 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2014 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2015 /*IgnoreSysRoot=*/false); 2016 2017 // Add the paths for the various language specific isystem flags. 2018 for (const auto *A : Args.filtered(OPT_c_isystem)) 2019 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2020 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2021 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2022 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2023 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2024 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2025 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2026 2027 // Add the internal paths from a driver that detects standard include paths. 2028 for (const auto *A : 2029 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2030 frontend::IncludeDirGroup Group = frontend::System; 2031 if (A->getOption().matches(OPT_internal_externc_isystem)) 2032 Group = frontend::ExternCSystem; 2033 Opts.AddPath(A->getValue(), Group, false, true); 2034 } 2035 2036 // Add the path prefixes which are implicitly treated as being system headers. 2037 for (const auto *A : 2038 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2039 Opts.AddSystemHeaderPrefix( 2040 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2041 2042 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2043 Opts.AddVFSOverlayFile(A->getValue()); 2044 } 2045 2046 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2047 const llvm::Triple &T, 2048 PreprocessorOptions &PPOpts, 2049 LangStandard::Kind LangStd) { 2050 // Set some properties which depend solely on the input kind; it would be nice 2051 // to move these to the language standard, and have the driver resolve the 2052 // input kind + language standard. 2053 // 2054 // FIXME: Perhaps a better model would be for a single source file to have 2055 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2056 // simultaneously active? 2057 if (IK.getLanguage() == InputKind::Asm) { 2058 Opts.AsmPreprocessor = 1; 2059 } else if (IK.isObjectiveC()) { 2060 Opts.ObjC = 1; 2061 } 2062 2063 if (LangStd == LangStandard::lang_unspecified) { 2064 // Based on the base language, pick one. 2065 switch (IK.getLanguage()) { 2066 case InputKind::Unknown: 2067 case InputKind::LLVM_IR: 2068 llvm_unreachable("Invalid input kind!"); 2069 case InputKind::OpenCL: 2070 LangStd = LangStandard::lang_opencl10; 2071 break; 2072 case InputKind::CUDA: 2073 LangStd = LangStandard::lang_cuda; 2074 break; 2075 case InputKind::Asm: 2076 case InputKind::C: 2077 #if defined(CLANG_DEFAULT_STD_C) 2078 LangStd = CLANG_DEFAULT_STD_C; 2079 #else 2080 // The PS4 uses C99 as the default C standard. 2081 if (T.isPS4()) 2082 LangStd = LangStandard::lang_gnu99; 2083 else 2084 LangStd = LangStandard::lang_gnu11; 2085 #endif 2086 break; 2087 case InputKind::ObjC: 2088 #if defined(CLANG_DEFAULT_STD_C) 2089 LangStd = CLANG_DEFAULT_STD_C; 2090 #else 2091 LangStd = LangStandard::lang_gnu11; 2092 #endif 2093 break; 2094 case InputKind::CXX: 2095 case InputKind::ObjCXX: 2096 #if defined(CLANG_DEFAULT_STD_CXX) 2097 LangStd = CLANG_DEFAULT_STD_CXX; 2098 #else 2099 LangStd = LangStandard::lang_gnucxx14; 2100 #endif 2101 break; 2102 case InputKind::RenderScript: 2103 LangStd = LangStandard::lang_c99; 2104 break; 2105 case InputKind::HIP: 2106 LangStd = LangStandard::lang_hip; 2107 break; 2108 } 2109 } 2110 2111 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2112 Opts.LineComment = Std.hasLineComments(); 2113 Opts.C99 = Std.isC99(); 2114 Opts.C11 = Std.isC11(); 2115 Opts.C17 = Std.isC17(); 2116 Opts.CPlusPlus = Std.isCPlusPlus(); 2117 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2118 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2119 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2120 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2121 Opts.Digraphs = Std.hasDigraphs(); 2122 Opts.GNUMode = Std.isGNUMode(); 2123 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2124 Opts.HexFloats = Std.hasHexFloats(); 2125 Opts.ImplicitInt = Std.hasImplicitInt(); 2126 2127 // Set OpenCL Version. 2128 Opts.OpenCL = Std.isOpenCL(); 2129 if (LangStd == LangStandard::lang_opencl10) 2130 Opts.OpenCLVersion = 100; 2131 else if (LangStd == LangStandard::lang_opencl11) 2132 Opts.OpenCLVersion = 110; 2133 else if (LangStd == LangStandard::lang_opencl12) 2134 Opts.OpenCLVersion = 120; 2135 else if (LangStd == LangStandard::lang_opencl20) 2136 Opts.OpenCLVersion = 200; 2137 else if (LangStd == LangStandard::lang_openclcpp) 2138 Opts.OpenCLCPlusPlusVersion = 100; 2139 2140 // OpenCL has some additional defaults. 2141 if (Opts.OpenCL) { 2142 Opts.AltiVec = 0; 2143 Opts.ZVector = 0; 2144 Opts.LaxVectorConversions = 0; 2145 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2146 Opts.NativeHalfType = 1; 2147 Opts.NativeHalfArgsAndReturns = 1; 2148 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2149 // Include default header file for OpenCL. 2150 if (Opts.IncludeDefaultHeader) { 2151 PPOpts.Includes.push_back("opencl-c.h"); 2152 } 2153 } 2154 2155 Opts.HIP = IK.getLanguage() == InputKind::HIP; 2156 Opts.CUDA = IK.getLanguage() == InputKind::CUDA || Opts.HIP; 2157 if (Opts.CUDA) 2158 // Set default FP_CONTRACT to FAST. 2159 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2160 2161 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 2162 if (Opts.RenderScript) { 2163 Opts.NativeHalfType = 1; 2164 Opts.NativeHalfArgsAndReturns = 1; 2165 } 2166 2167 // OpenCL and C++ both have bool, true, false keywords. 2168 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2169 2170 // OpenCL has half keyword 2171 Opts.Half = Opts.OpenCL; 2172 2173 // C++ has wchar_t keyword. 2174 Opts.WChar = Opts.CPlusPlus; 2175 2176 Opts.GNUKeywords = Opts.GNUMode; 2177 Opts.CXXOperatorNames = Opts.CPlusPlus; 2178 2179 Opts.AlignedAllocation = Opts.CPlusPlus17; 2180 2181 Opts.DollarIdents = !Opts.AsmPreprocessor; 2182 } 2183 2184 /// Attempt to parse a visibility value out of the given argument. 2185 static Visibility parseVisibility(Arg *arg, ArgList &args, 2186 DiagnosticsEngine &diags) { 2187 StringRef value = arg->getValue(); 2188 if (value == "default") { 2189 return DefaultVisibility; 2190 } else if (value == "hidden" || value == "internal") { 2191 return HiddenVisibility; 2192 } else if (value == "protected") { 2193 // FIXME: diagnose if target does not support protected visibility 2194 return ProtectedVisibility; 2195 } 2196 2197 diags.Report(diag::err_drv_invalid_value) 2198 << arg->getAsString(args) << value; 2199 return DefaultVisibility; 2200 } 2201 2202 /// Check if input file kind and language standard are compatible. 2203 static bool IsInputCompatibleWithStandard(InputKind IK, 2204 const LangStandard &S) { 2205 switch (IK.getLanguage()) { 2206 case InputKind::Unknown: 2207 case InputKind::LLVM_IR: 2208 llvm_unreachable("should not parse language flags for this input"); 2209 2210 case InputKind::C: 2211 case InputKind::ObjC: 2212 case InputKind::RenderScript: 2213 return S.getLanguage() == InputKind::C; 2214 2215 case InputKind::OpenCL: 2216 return S.getLanguage() == InputKind::OpenCL; 2217 2218 case InputKind::CXX: 2219 case InputKind::ObjCXX: 2220 return S.getLanguage() == InputKind::CXX; 2221 2222 case InputKind::CUDA: 2223 // FIXME: What -std= values should be permitted for CUDA compilations? 2224 return S.getLanguage() == InputKind::CUDA || 2225 S.getLanguage() == InputKind::CXX; 2226 2227 case InputKind::HIP: 2228 return S.getLanguage() == InputKind::CXX || 2229 S.getLanguage() == InputKind::HIP; 2230 2231 case InputKind::Asm: 2232 // Accept (and ignore) all -std= values. 2233 // FIXME: The -std= value is not ignored; it affects the tokenization 2234 // and preprocessing rules if we're preprocessing this asm input. 2235 return true; 2236 } 2237 2238 llvm_unreachable("unexpected input language"); 2239 } 2240 2241 /// Get language name for given input kind. 2242 static const StringRef GetInputKindName(InputKind IK) { 2243 switch (IK.getLanguage()) { 2244 case InputKind::C: 2245 return "C"; 2246 case InputKind::ObjC: 2247 return "Objective-C"; 2248 case InputKind::CXX: 2249 return "C++"; 2250 case InputKind::ObjCXX: 2251 return "Objective-C++"; 2252 case InputKind::OpenCL: 2253 return "OpenCL"; 2254 case InputKind::CUDA: 2255 return "CUDA"; 2256 case InputKind::RenderScript: 2257 return "RenderScript"; 2258 case InputKind::HIP: 2259 return "HIP"; 2260 2261 case InputKind::Asm: 2262 return "Asm"; 2263 case InputKind::LLVM_IR: 2264 return "LLVM IR"; 2265 2266 case InputKind::Unknown: 2267 break; 2268 } 2269 llvm_unreachable("unknown input language"); 2270 } 2271 2272 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2273 const TargetOptions &TargetOpts, 2274 PreprocessorOptions &PPOpts, 2275 DiagnosticsEngine &Diags) { 2276 // FIXME: Cleanup per-file based stuff. 2277 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2278 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2279 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2280 #define LANGSTANDARD(id, name, lang, desc, features) \ 2281 .Case(name, LangStandard::lang_##id) 2282 #define LANGSTANDARD_ALIAS(id, alias) \ 2283 .Case(alias, LangStandard::lang_##id) 2284 #include "clang/Frontend/LangStandards.def" 2285 .Default(LangStandard::lang_unspecified); 2286 if (LangStd == LangStandard::lang_unspecified) { 2287 Diags.Report(diag::err_drv_invalid_value) 2288 << A->getAsString(Args) << A->getValue(); 2289 // Report supported standards with short description. 2290 for (unsigned KindValue = 0; 2291 KindValue != LangStandard::lang_unspecified; 2292 ++KindValue) { 2293 const LangStandard &Std = LangStandard::getLangStandardForKind( 2294 static_cast<LangStandard::Kind>(KindValue)); 2295 if (IsInputCompatibleWithStandard(IK, Std)) { 2296 auto Diag = Diags.Report(diag::note_drv_use_standard); 2297 Diag << Std.getName() << Std.getDescription(); 2298 unsigned NumAliases = 0; 2299 #define LANGSTANDARD(id, name, lang, desc, features) 2300 #define LANGSTANDARD_ALIAS(id, alias) \ 2301 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2302 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2303 #include "clang/Frontend/LangStandards.def" 2304 Diag << NumAliases; 2305 #define LANGSTANDARD(id, name, lang, desc, features) 2306 #define LANGSTANDARD_ALIAS(id, alias) \ 2307 if (KindValue == LangStandard::lang_##id) Diag << alias; 2308 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2309 #include "clang/Frontend/LangStandards.def" 2310 } 2311 } 2312 } else { 2313 // Valid standard, check to make sure language and standard are 2314 // compatible. 2315 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2316 if (!IsInputCompatibleWithStandard(IK, Std)) { 2317 Diags.Report(diag::err_drv_argument_not_allowed_with) 2318 << A->getAsString(Args) << GetInputKindName(IK); 2319 } 2320 } 2321 } 2322 2323 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2324 Opts.DllExportInlines = false; 2325 2326 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2327 StringRef Name = A->getValue(); 2328 if (Name == "full" || Name == "branch") { 2329 Opts.CFProtectionBranch = 1; 2330 } 2331 } 2332 // -cl-std only applies for OpenCL language standards. 2333 // Override the -std option in this case. 2334 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2335 LangStandard::Kind OpenCLLangStd 2336 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2337 .Cases("cl", "CL", LangStandard::lang_opencl10) 2338 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2339 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2340 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2341 .Case("c++", LangStandard::lang_openclcpp) 2342 .Default(LangStandard::lang_unspecified); 2343 2344 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2345 Diags.Report(diag::err_drv_invalid_value) 2346 << A->getAsString(Args) << A->getValue(); 2347 } 2348 else 2349 LangStd = OpenCLLangStd; 2350 } 2351 2352 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2353 2354 llvm::Triple T(TargetOpts.Triple); 2355 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2356 2357 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2358 // This option should be deprecated for CL > 1.0 because 2359 // this option was added for compatibility with OpenCL 1.0. 2360 if (Args.getLastArg(OPT_cl_strict_aliasing) 2361 && Opts.OpenCLVersion > 100) { 2362 Diags.Report(diag::warn_option_invalid_ocl_version) 2363 << Opts.getOpenCLVersionTuple().getAsString() 2364 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2365 } 2366 2367 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2368 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2369 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2370 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2371 // name, as it doesn't seem a useful distinction. 2372 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2373 Opts.GNUKeywords); 2374 2375 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2376 2377 if (Args.hasArg(OPT_fno_operator_names)) 2378 Opts.CXXOperatorNames = 0; 2379 2380 if (Args.hasArg(OPT_fcuda_is_device)) 2381 Opts.CUDAIsDevice = 1; 2382 2383 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2384 Opts.CUDAAllowVariadicFunctions = 1; 2385 2386 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2387 Opts.CUDAHostDeviceConstexpr = 0; 2388 2389 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2390 Opts.CUDADeviceApproxTranscendentals = 1; 2391 2392 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2393 2394 if (Opts.ObjC) { 2395 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2396 StringRef value = arg->getValue(); 2397 if (Opts.ObjCRuntime.tryParse(value)) 2398 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2399 } 2400 2401 if (Args.hasArg(OPT_fobjc_gc_only)) 2402 Opts.setGC(LangOptions::GCOnly); 2403 else if (Args.hasArg(OPT_fobjc_gc)) 2404 Opts.setGC(LangOptions::HybridGC); 2405 else if (Args.hasArg(OPT_fobjc_arc)) { 2406 Opts.ObjCAutoRefCount = 1; 2407 if (!Opts.ObjCRuntime.allowsARC()) 2408 Diags.Report(diag::err_arc_unsupported_on_runtime); 2409 } 2410 2411 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2412 // whether the feature is actually enabled. This is predominantly 2413 // determined by -fobjc-runtime, but we allow it to be overridden 2414 // from the command line for testing purposes. 2415 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2416 Opts.ObjCWeakRuntime = 1; 2417 else 2418 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2419 2420 // ObjCWeak determines whether __weak is actually enabled. 2421 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2422 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2423 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2424 assert(!Opts.ObjCWeak); 2425 } else if (Opts.getGC() != LangOptions::NonGC) { 2426 Diags.Report(diag::err_objc_weak_with_gc); 2427 } else if (!Opts.ObjCWeakRuntime) { 2428 Diags.Report(diag::err_objc_weak_unsupported); 2429 } else { 2430 Opts.ObjCWeak = 1; 2431 } 2432 } else if (Opts.ObjCAutoRefCount) { 2433 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2434 } 2435 2436 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2437 Opts.ObjCInferRelatedResultType = 0; 2438 2439 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2440 Opts.ObjCSubscriptingLegacyRuntime = 2441 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2442 } 2443 2444 if (Args.hasArg(OPT_fgnu89_inline)) { 2445 if (Opts.CPlusPlus) 2446 Diags.Report(diag::err_drv_argument_not_allowed_with) 2447 << "-fgnu89-inline" << GetInputKindName(IK); 2448 else 2449 Opts.GNUInline = 1; 2450 } 2451 2452 if (Args.hasArg(OPT_fapple_kext)) { 2453 if (!Opts.CPlusPlus) 2454 Diags.Report(diag::warn_c_kext); 2455 else 2456 Opts.AppleKext = 1; 2457 } 2458 2459 if (Args.hasArg(OPT_print_ivar_layout)) 2460 Opts.ObjCGCBitmapPrint = 1; 2461 2462 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2463 Opts.NoConstantCFStrings = 1; 2464 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2465 Opts.CFRuntime = 2466 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2467 .Cases("unspecified", "standalone", "objc", 2468 LangOptions::CoreFoundationABI::ObjectiveC) 2469 .Cases("swift", "swift-5.0", 2470 LangOptions::CoreFoundationABI::Swift5_0) 2471 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2472 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2473 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2474 2475 if (Args.hasArg(OPT_fzvector)) 2476 Opts.ZVector = 1; 2477 2478 if (Args.hasArg(OPT_pthread)) 2479 Opts.POSIXThreads = 1; 2480 2481 // The value-visibility mode defaults to "default". 2482 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2483 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2484 } else { 2485 Opts.setValueVisibilityMode(DefaultVisibility); 2486 } 2487 2488 // The type-visibility mode defaults to the value-visibility mode. 2489 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2490 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2491 } else { 2492 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2493 } 2494 2495 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2496 Opts.InlineVisibilityHidden = 1; 2497 2498 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2499 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2500 2501 if (Args.hasArg(OPT_ftrapv)) { 2502 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2503 // Set the handler, if one is specified. 2504 Opts.OverflowHandler = 2505 Args.getLastArgValue(OPT_ftrapv_handler); 2506 } 2507 else if (Args.hasArg(OPT_fwrapv)) 2508 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2509 2510 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2511 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2512 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2513 Opts.MSCompatibilityVersion = 0; 2514 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2515 VersionTuple VT; 2516 if (VT.tryParse(A->getValue())) 2517 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2518 << A->getValue(); 2519 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2520 VT.getMinor().getValueOr(0) * 100000 + 2521 VT.getSubminor().getValueOr(0); 2522 } 2523 2524 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2525 // is specified, or -std is set to a conforming mode. 2526 // Trigraphs are disabled by default in c++1z onwards. 2527 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2528 Opts.Trigraphs = 2529 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2530 2531 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2532 OPT_fno_dollars_in_identifiers, 2533 Opts.DollarIdents); 2534 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2535 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2536 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2537 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2538 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2539 Opts.ConstStrings); 2540 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2541 Opts.LaxVectorConversions = 0; 2542 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2543 Opts.ThreadsafeStatics = 0; 2544 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2545 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2546 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2547 2548 // -ffixed-point 2549 Opts.FixedPoint = 2550 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2551 !Opts.CPlusPlus; 2552 Opts.PaddingOnUnsignedFixedPoint = 2553 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2554 OPT_fno_padding_on_unsigned_fixed_point, 2555 /*Default=*/false) && 2556 Opts.FixedPoint; 2557 2558 // Handle exception personalities 2559 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2560 options::OPT_fseh_exceptions, 2561 options::OPT_fdwarf_exceptions); 2562 if (A) { 2563 const Option &Opt = A->getOption(); 2564 llvm::Triple T(TargetOpts.Triple); 2565 if (T.isWindowsMSVCEnvironment()) 2566 Diags.Report(diag::err_fe_invalid_exception_model) 2567 << Opt.getName() << T.str(); 2568 2569 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2570 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2571 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2572 } 2573 2574 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2575 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2576 2577 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2578 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2579 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2580 && Opts.OpenCLVersion == 200); 2581 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2582 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2583 2584 // Enable [[]] attributes in C++11 by default. 2585 Opts.DoubleSquareBracketAttributes = 2586 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2587 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11); 2588 2589 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2590 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2591 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2592 Opts.ModulesDeclUse = 2593 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2594 Opts.ModulesLocalVisibility = 2595 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2596 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2597 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2598 Opts.ModulesSearchAll = Opts.Modules && 2599 !Args.hasArg(OPT_fno_modules_search_all) && 2600 Args.hasArg(OPT_fmodules_search_all); 2601 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2602 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2603 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2604 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2605 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2606 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2607 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2608 .Case("char", 1) 2609 .Case("short", 2) 2610 .Case("int", 4) 2611 .Default(0); 2612 if (Opts.WCharSize == 0) 2613 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2614 } 2615 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2616 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2617 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2618 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2619 if (!Opts.NoBuiltin) 2620 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2621 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2622 Opts.RelaxedTemplateTemplateArgs = 2623 Args.hasArg(OPT_frelaxed_template_template_args); 2624 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2625 Opts.AlignedAllocation = 2626 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2627 Opts.AlignedAllocation); 2628 Opts.AlignedAllocationUnavailable = 2629 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2630 Opts.NewAlignOverride = 2631 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2632 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2633 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2634 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2635 << A->getValue(); 2636 Opts.NewAlignOverride = 0; 2637 } 2638 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2639 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2640 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2641 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2642 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2643 Opts.InstantiationDepth = 2644 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2645 Opts.ArrowDepth = 2646 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2647 Opts.ConstexprCallDepth = 2648 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2649 Opts.ConstexprStepLimit = 2650 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2651 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2652 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2653 Opts.NumLargeByValueCopy = 2654 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2655 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2656 Opts.ObjCConstantStringClass = 2657 Args.getLastArgValue(OPT_fconstant_string_class); 2658 Opts.ObjCDefaultSynthProperties = 2659 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2660 Opts.EncodeExtendedBlockSig = 2661 Args.hasArg(OPT_fencode_extended_block_signature); 2662 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2663 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2664 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2665 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2666 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2667 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2668 Opts.Static = Args.hasArg(OPT_static_define); 2669 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2670 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2671 || Args.hasArg(OPT_fdump_record_layouts); 2672 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2673 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2674 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2675 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2676 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2677 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2678 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2679 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2680 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2681 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2682 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2683 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2684 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ); 2685 Opts.CurrentModule = Opts.ModuleName; 2686 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2687 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2688 llvm::sort(Opts.ModuleFeatures); 2689 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2690 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2691 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2692 // is enabled. 2693 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2694 | Opts.NativeHalfArgsAndReturns; 2695 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2696 2697 // __declspec is enabled by default for the PS4 by the driver, and also 2698 // enabled for Microsoft Extensions or Borland Extensions, here. 2699 // 2700 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2701 // CUDA extension. However, it is required for supporting 2702 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2703 // been rewritten in terms of something more generic, remove the Opts.CUDA 2704 // term here. 2705 Opts.DeclSpecKeyword = 2706 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2707 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2708 2709 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2710 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2711 .Case("target", LangOptions::ASMM_Target) 2712 .Case("no", LangOptions::ASMM_Off) 2713 .Case("yes", LangOptions::ASMM_On) 2714 .Default(255)) { 2715 default: 2716 Diags.Report(diag::err_drv_invalid_value) 2717 << "-faddress-space-map-mangling=" << A->getValue(); 2718 break; 2719 case LangOptions::ASMM_Target: 2720 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2721 break; 2722 case LangOptions::ASMM_On: 2723 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2724 break; 2725 case LangOptions::ASMM_Off: 2726 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2727 break; 2728 } 2729 } 2730 2731 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2732 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2733 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2734 A->getValue()) 2735 .Case("single", 2736 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2737 .Case("multiple", 2738 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2739 .Case("virtual", 2740 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2741 .Default(LangOptions::PPTMK_BestCase); 2742 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2743 Diags.Report(diag::err_drv_invalid_value) 2744 << "-fms-memptr-rep=" << A->getValue(); 2745 2746 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2747 } 2748 2749 // Check for MS default calling conventions being specified. 2750 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2751 LangOptions::DefaultCallingConvention DefaultCC = 2752 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2753 .Case("cdecl", LangOptions::DCC_CDecl) 2754 .Case("fastcall", LangOptions::DCC_FastCall) 2755 .Case("stdcall", LangOptions::DCC_StdCall) 2756 .Case("vectorcall", LangOptions::DCC_VectorCall) 2757 .Case("regcall", LangOptions::DCC_RegCall) 2758 .Default(LangOptions::DCC_None); 2759 if (DefaultCC == LangOptions::DCC_None) 2760 Diags.Report(diag::err_drv_invalid_value) 2761 << "-fdefault-calling-conv=" << A->getValue(); 2762 2763 llvm::Triple T(TargetOpts.Triple); 2764 llvm::Triple::ArchType Arch = T.getArch(); 2765 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2766 DefaultCC == LangOptions::DCC_StdCall) && 2767 Arch != llvm::Triple::x86; 2768 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2769 DefaultCC == LangOptions::DCC_RegCall) && 2770 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2771 if (emitError) 2772 Diags.Report(diag::err_drv_argument_not_allowed_with) 2773 << A->getSpelling() << T.getTriple(); 2774 else 2775 Opts.setDefaultCallingConv(DefaultCC); 2776 } 2777 2778 // -mrtd option 2779 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2780 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2781 Diags.Report(diag::err_drv_argument_not_allowed_with) 2782 << A->getSpelling() << "-fdefault-calling-conv"; 2783 else { 2784 llvm::Triple T(TargetOpts.Triple); 2785 if (T.getArch() != llvm::Triple::x86) 2786 Diags.Report(diag::err_drv_argument_not_allowed_with) 2787 << A->getSpelling() << T.getTriple(); 2788 else 2789 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2790 } 2791 } 2792 2793 // Check if -fopenmp is specified. 2794 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2795 // Check if -fopenmp-simd is specified. 2796 bool IsSimdSpecified = 2797 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2798 /*Default=*/false); 2799 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2800 Opts.OpenMPUseTLS = 2801 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2802 Opts.OpenMPIsDevice = 2803 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2804 bool IsTargetSpecified = 2805 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2806 2807 if (Opts.OpenMP || Opts.OpenMPSimd) { 2808 if (int Version = getLastArgIntValue( 2809 Args, OPT_fopenmp_version_EQ, 2810 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 2811 Opts.OpenMP = Version; 2812 else if (IsSimdSpecified || IsTargetSpecified) 2813 Opts.OpenMP = 45; 2814 // Provide diagnostic when a given target is not expected to be an OpenMP 2815 // device or host. 2816 if (!Opts.OpenMPIsDevice) { 2817 switch (T.getArch()) { 2818 default: 2819 break; 2820 // Add unsupported host targets here: 2821 case llvm::Triple::nvptx: 2822 case llvm::Triple::nvptx64: 2823 Diags.Report(diag::err_drv_omp_host_target_not_supported) 2824 << TargetOpts.Triple; 2825 break; 2826 } 2827 } 2828 } 2829 2830 // Set the flag to prevent the implementation from emitting device exception 2831 // handling code for those requiring so. 2832 Opts.OpenMPHostCXXExceptions = Opts.Exceptions && Opts.CXXExceptions; 2833 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 2834 Opts.Exceptions = 0; 2835 Opts.CXXExceptions = 0; 2836 } 2837 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2838 Opts.OpenMPCUDANumSMs = 2839 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 2840 Opts.OpenMPCUDANumSMs, Diags); 2841 Opts.OpenMPCUDABlocksPerSM = 2842 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 2843 Opts.OpenMPCUDABlocksPerSM, Diags); 2844 } 2845 2846 // Get the OpenMP target triples if any. 2847 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2848 2849 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2850 llvm::Triple TT(A->getValue(i)); 2851 2852 if (TT.getArch() == llvm::Triple::UnknownArch || 2853 !(TT.getArch() == llvm::Triple::ppc || 2854 TT.getArch() == llvm::Triple::ppc64 || 2855 TT.getArch() == llvm::Triple::ppc64le || 2856 TT.getArch() == llvm::Triple::nvptx || 2857 TT.getArch() == llvm::Triple::nvptx64 || 2858 TT.getArch() == llvm::Triple::x86 || 2859 TT.getArch() == llvm::Triple::x86_64)) 2860 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 2861 else 2862 Opts.OMPTargetTriples.push_back(TT); 2863 } 2864 } 2865 2866 // Get OpenMP host file path if any and report if a non existent file is 2867 // found 2868 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2869 Opts.OMPHostIRFile = A->getValue(); 2870 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2871 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 2872 << Opts.OMPHostIRFile; 2873 } 2874 2875 // Set CUDA mode for OpenMP target NVPTX if specified in options 2876 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 2877 Args.hasArg(options::OPT_fopenmp_cuda_mode); 2878 2879 // Set CUDA mode for OpenMP target NVPTX if specified in options 2880 Opts.OpenMPCUDAForceFullRuntime = 2881 Opts.OpenMPIsDevice && T.isNVPTX() && 2882 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 2883 2884 // Record whether the __DEPRECATED define was requested. 2885 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2886 OPT_fno_deprecated_macro, 2887 Opts.Deprecated); 2888 2889 // FIXME: Eliminate this dependency. 2890 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2891 OptSize = getOptimizationLevelSize(Args); 2892 Opts.Optimize = Opt != 0; 2893 Opts.OptimizeSize = OptSize != 0; 2894 2895 // This is the __NO_INLINE__ define, which just depends on things like the 2896 // optimization level and -fno-inline, not actually whether the backend has 2897 // inlining enabled. 2898 Opts.NoInlineDefine = !Opts.Optimize; 2899 if (Arg *InlineArg = Args.getLastArg( 2900 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2901 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2902 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2903 Opts.NoInlineDefine = true; 2904 2905 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2906 Args.hasArg(OPT_cl_fast_relaxed_math); 2907 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2908 Args.hasArg(OPT_cl_finite_math_only) || 2909 Args.hasArg(OPT_cl_fast_relaxed_math); 2910 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2911 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2912 Args.hasArg(OPT_cl_fast_relaxed_math); 2913 2914 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2915 StringRef Val = A->getValue(); 2916 if (Val == "fast") 2917 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2918 else if (Val == "on") 2919 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2920 else if (Val == "off") 2921 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2922 else 2923 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2924 } 2925 2926 Opts.RetainCommentsFromSystemHeaders = 2927 Args.hasArg(OPT_fretain_comments_from_system_headers); 2928 2929 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2930 switch (SSP) { 2931 default: 2932 Diags.Report(diag::err_drv_invalid_value) 2933 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2934 break; 2935 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2936 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2937 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2938 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2939 } 2940 2941 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 2942 StringRef Val = A->getValue(); 2943 if (Val == "uninitialized") 2944 Opts.setTrivialAutoVarInit( 2945 LangOptions::TrivialAutoVarInitKind::Uninitialized); 2946 else if (Val == "zero") 2947 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 2948 else if (Val == "pattern") 2949 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 2950 else 2951 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2952 } 2953 2954 // Parse -fsanitize= arguments. 2955 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2956 Diags, Opts.Sanitize); 2957 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2958 Opts.SanitizeAddressFieldPadding = 2959 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2960 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2961 2962 // -fxray-instrument 2963 Opts.XRayInstrument = 2964 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2965 2966 // -fxray-always-emit-customevents 2967 Opts.XRayAlwaysEmitCustomEvents = 2968 Args.hasFlag(OPT_fxray_always_emit_customevents, 2969 OPT_fnoxray_always_emit_customevents, false); 2970 2971 // -fxray-always-emit-typedevents 2972 Opts.XRayAlwaysEmitTypedEvents = 2973 Args.hasFlag(OPT_fxray_always_emit_typedevents, 2974 OPT_fnoxray_always_emit_customevents, false); 2975 2976 // -fxray-{always,never}-instrument= filenames. 2977 Opts.XRayAlwaysInstrumentFiles = 2978 Args.getAllArgValues(OPT_fxray_always_instrument); 2979 Opts.XRayNeverInstrumentFiles = 2980 Args.getAllArgValues(OPT_fxray_never_instrument); 2981 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 2982 2983 // -fforce-emit-vtables 2984 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 2985 2986 // -fallow-editor-placeholders 2987 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2988 2989 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 2990 2991 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 2992 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 2993 2994 StringRef Ver = A->getValue(); 2995 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 2996 unsigned Major, Minor = 0; 2997 2998 // Check the version number is valid: either 3.x (0 <= x <= 9) or 2999 // y or y.0 (4 <= y <= current version). 3000 if (!VerParts.first.startswith("0") && 3001 !VerParts.first.getAsInteger(10, Major) && 3002 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3003 (Major == 3 ? VerParts.second.size() == 1 && 3004 !VerParts.second.getAsInteger(10, Minor) 3005 : VerParts.first.size() == Ver.size() || 3006 VerParts.second == "0")) { 3007 // Got a valid version number. 3008 if (Major == 3 && Minor <= 8) 3009 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3010 else if (Major <= 4) 3011 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3012 else if (Major <= 6) 3013 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3014 else if (Major <= 7) 3015 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3016 } else if (Ver != "latest") { 3017 Diags.Report(diag::err_drv_invalid_value) 3018 << A->getAsString(Args) << A->getValue(); 3019 } 3020 } 3021 3022 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3023 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3024 } 3025 3026 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3027 switch (Action) { 3028 case frontend::ASTDeclList: 3029 case frontend::ASTDump: 3030 case frontend::ASTPrint: 3031 case frontend::ASTView: 3032 case frontend::EmitAssembly: 3033 case frontend::EmitBC: 3034 case frontend::EmitHTML: 3035 case frontend::EmitLLVM: 3036 case frontend::EmitLLVMOnly: 3037 case frontend::EmitCodeGenOnly: 3038 case frontend::EmitObj: 3039 case frontend::FixIt: 3040 case frontend::GenerateModule: 3041 case frontend::GenerateModuleInterface: 3042 case frontend::GenerateHeaderModule: 3043 case frontend::GeneratePCH: 3044 case frontend::ParseSyntaxOnly: 3045 case frontend::ModuleFileInfo: 3046 case frontend::VerifyPCH: 3047 case frontend::PluginAction: 3048 case frontend::RewriteObjC: 3049 case frontend::RewriteTest: 3050 case frontend::RunAnalysis: 3051 case frontend::TemplightDump: 3052 case frontend::MigrateSource: 3053 return false; 3054 3055 case frontend::DumpCompilerOptions: 3056 case frontend::DumpRawTokens: 3057 case frontend::DumpTokens: 3058 case frontend::InitOnly: 3059 case frontend::PrintPreamble: 3060 case frontend::PrintPreprocessedInput: 3061 case frontend::RewriteMacros: 3062 case frontend::RunPreprocessorOnly: 3063 return true; 3064 } 3065 llvm_unreachable("invalid frontend action"); 3066 } 3067 3068 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3069 DiagnosticsEngine &Diags, 3070 frontend::ActionKind Action) { 3071 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 3072 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3073 Args.hasArg(OPT_pch_through_hdrstop_use); 3074 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3075 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ); 3076 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3077 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3078 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3079 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3080 3081 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3082 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3083 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3084 3085 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3086 StringRef Value(A->getValue()); 3087 size_t Comma = Value.find(','); 3088 unsigned Bytes = 0; 3089 unsigned EndOfLine = 0; 3090 3091 if (Comma == StringRef::npos || 3092 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3093 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3094 Diags.Report(diag::err_drv_preamble_format); 3095 else { 3096 Opts.PrecompiledPreambleBytes.first = Bytes; 3097 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3098 } 3099 } 3100 3101 // Add the __CET__ macro if a CFProtection option is set. 3102 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3103 StringRef Name = A->getValue(); 3104 if (Name == "branch") 3105 Opts.addMacroDef("__CET__=1"); 3106 else if (Name == "return") 3107 Opts.addMacroDef("__CET__=2"); 3108 else if (Name == "full") 3109 Opts.addMacroDef("__CET__=3"); 3110 } 3111 3112 // Add macros from the command line. 3113 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3114 if (A->getOption().matches(OPT_D)) 3115 Opts.addMacroDef(A->getValue()); 3116 else 3117 Opts.addMacroUndef(A->getValue()); 3118 } 3119 3120 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3121 3122 // Add the ordered list of -includes. 3123 for (const auto *A : Args.filtered(OPT_include)) 3124 Opts.Includes.emplace_back(A->getValue()); 3125 3126 for (const auto *A : Args.filtered(OPT_chain_include)) 3127 Opts.ChainedIncludes.emplace_back(A->getValue()); 3128 3129 for (const auto *A : Args.filtered(OPT_remap_file)) { 3130 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3131 3132 if (Split.second.empty()) { 3133 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3134 continue; 3135 } 3136 3137 Opts.addRemappedFile(Split.first, Split.second); 3138 } 3139 3140 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3141 StringRef Name = A->getValue(); 3142 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3143 .Case("libc++", ARCXX_libcxx) 3144 .Case("libstdc++", ARCXX_libstdcxx) 3145 .Case("none", ARCXX_nolib) 3146 .Default(~0U); 3147 if (Library == ~0U) 3148 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3149 else 3150 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3151 } 3152 3153 // Always avoid lexing editor placeholders when we're just running the 3154 // preprocessor as we never want to emit the 3155 // "editor placeholder in source file" error in PP only mode. 3156 if (isStrictlyPreprocessorAction(Action)) 3157 Opts.LexEditorPlaceholders = false; 3158 } 3159 3160 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3161 ArgList &Args, 3162 frontend::ActionKind Action) { 3163 if (isStrictlyPreprocessorAction(Action)) 3164 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3165 else 3166 Opts.ShowCPP = 0; 3167 3168 Opts.ShowComments = Args.hasArg(OPT_C); 3169 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3170 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3171 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3172 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3173 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3174 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3175 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3176 } 3177 3178 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3179 DiagnosticsEngine &Diags) { 3180 Opts.CodeModel = getCodeModel(Args, Diags); 3181 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 3182 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3183 StringRef Value = A->getValue(); 3184 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3185 .Case("default", llvm::EABI::Default) 3186 .Case("4", llvm::EABI::EABI4) 3187 .Case("5", llvm::EABI::EABI5) 3188 .Case("gnu", llvm::EABI::GNU) 3189 .Default(llvm::EABI::Unknown); 3190 if (EABIVersion == llvm::EABI::Unknown) 3191 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3192 << Value; 3193 else 3194 Opts.EABIVersion = EABIVersion; 3195 } 3196 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 3197 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 3198 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3199 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 3200 Opts.Triple = Args.getLastArgValue(OPT_triple); 3201 // Use the default target triple if unspecified. 3202 if (Opts.Triple.empty()) 3203 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3204 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3205 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3206 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3207 Opts.NVPTXUseShortPointers = Args.hasFlag( 3208 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3209 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3210 llvm::VersionTuple Version; 3211 if (Version.tryParse(A->getValue())) 3212 Diags.Report(diag::err_drv_invalid_value) 3213 << A->getAsString(Args) << A->getValue(); 3214 else 3215 Opts.SDKVersion = Version; 3216 } 3217 } 3218 3219 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3220 const char *const *ArgBegin, 3221 const char *const *ArgEnd, 3222 DiagnosticsEngine &Diags) { 3223 bool Success = true; 3224 3225 // Parse the arguments. 3226 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 3227 const unsigned IncludedFlagsBitmask = options::CC1Option; 3228 unsigned MissingArgIndex, MissingArgCount; 3229 InputArgList Args = 3230 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 3231 MissingArgCount, IncludedFlagsBitmask); 3232 LangOptions &LangOpts = *Res.getLangOpts(); 3233 3234 // Check for missing argument error. 3235 if (MissingArgCount) { 3236 Diags.Report(diag::err_drv_missing_argument) 3237 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3238 Success = false; 3239 } 3240 3241 // Issue errors on unknown arguments. 3242 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3243 auto ArgString = A->getAsString(Args); 3244 std::string Nearest; 3245 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3246 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3247 else 3248 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3249 << ArgString << Nearest; 3250 Success = false; 3251 } 3252 3253 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3254 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3255 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3256 Success &= 3257 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3258 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3259 ParseCommentArgs(LangOpts.CommentOpts, Args); 3260 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3261 // FIXME: We shouldn't have to pass the DashX option around here 3262 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3263 LangOpts.IsHeaderFile); 3264 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3265 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3266 Res.getTargetOpts(), Res.getFrontendOpts()); 3267 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3268 Res.getFileSystemOpts().WorkingDir); 3269 llvm::Triple T(Res.getTargetOpts().Triple); 3270 if (DashX.getFormat() == InputKind::Precompiled || 3271 DashX.getLanguage() == InputKind::LLVM_IR) { 3272 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3273 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3274 // what the input type is. 3275 if (Args.hasArg(OPT_fobjc_arc)) 3276 LangOpts.ObjCAutoRefCount = 1; 3277 // PIClevel and PIELevel are needed during code generation and this should be 3278 // set regardless of the input type. 3279 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3280 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3281 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3282 Diags, LangOpts.Sanitize); 3283 } else { 3284 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3285 // FIXME: Should we really be calling this for an InputKind::Asm input? 3286 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3287 Res.getPreprocessorOpts(), Diags); 3288 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3289 LangOpts.ObjCExceptions = 1; 3290 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3291 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3292 // preprocessed input as we don't expect it to be used with -std=libc++ 3293 // anyway. 3294 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3295 } 3296 } 3297 3298 LangOpts.FunctionAlignment = 3299 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3300 3301 if (LangOpts.CUDA) { 3302 // During CUDA device-side compilation, the aux triple is the 3303 // triple used for host compilation. 3304 if (LangOpts.CUDAIsDevice) 3305 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3306 } 3307 3308 // Set the triple of the host for OpenMP device compile. 3309 if (LangOpts.OpenMPIsDevice) 3310 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3311 3312 // FIXME: Override value name discarding when asan or msan is used because the 3313 // backend passes depend on the name of the alloca in order to print out 3314 // names. 3315 Res.getCodeGenOpts().DiscardValueNames &= 3316 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3317 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3318 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3319 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3320 3321 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3322 Res.getFrontendOpts().ProgramAction); 3323 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3324 Res.getFrontendOpts().ProgramAction); 3325 3326 // Turn on -Wspir-compat for SPIR target. 3327 auto Arch = T.getArch(); 3328 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 3329 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3330 } 3331 3332 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3333 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3334 !Res.getLangOpts()->Sanitize.empty()) { 3335 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3336 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3337 } 3338 return Success; 3339 } 3340 3341 std::string CompilerInvocation::getModuleHash() const { 3342 // Note: For QoI reasons, the things we use as a hash here should all be 3343 // dumped via the -module-info flag. 3344 using llvm::hash_code; 3345 using llvm::hash_value; 3346 using llvm::hash_combine; 3347 3348 // Start the signature with the compiler version. 3349 // FIXME: We'd rather use something more cryptographically sound than 3350 // CityHash, but this will do for now. 3351 hash_code code = hash_value(getClangFullRepositoryVersion()); 3352 3353 // Extend the signature with the language options 3354 #define LANGOPT(Name, Bits, Default, Description) \ 3355 code = hash_combine(code, LangOpts->Name); 3356 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3357 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3358 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3359 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3360 #include "clang/Basic/LangOptions.def" 3361 3362 for (StringRef Feature : LangOpts->ModuleFeatures) 3363 code = hash_combine(code, Feature); 3364 3365 // Extend the signature with the target options. 3366 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3367 TargetOpts->ABI); 3368 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3369 code = hash_combine(code, FeatureAsWritten); 3370 3371 // Extend the signature with preprocessor options. 3372 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3373 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3374 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3375 3376 for (const auto &I : getPreprocessorOpts().Macros) { 3377 // If we're supposed to ignore this macro for the purposes of modules, 3378 // don't put it into the hash. 3379 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3380 // Check whether we're ignoring this macro. 3381 StringRef MacroDef = I.first; 3382 if (hsOpts.ModulesIgnoreMacros.count( 3383 llvm::CachedHashString(MacroDef.split('=').first))) 3384 continue; 3385 } 3386 3387 code = hash_combine(code, I.first, I.second); 3388 } 3389 3390 // Extend the signature with the sysroot and other header search options. 3391 code = hash_combine(code, hsOpts.Sysroot, 3392 hsOpts.ModuleFormat, 3393 hsOpts.UseDebugInfo, 3394 hsOpts.UseBuiltinIncludes, 3395 hsOpts.UseStandardSystemIncludes, 3396 hsOpts.UseStandardCXXIncludes, 3397 hsOpts.UseLibcxx, 3398 hsOpts.ModulesValidateDiagnosticOptions); 3399 code = hash_combine(code, hsOpts.ResourceDir); 3400 3401 // Extend the signature with the user build path. 3402 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3403 3404 // Extend the signature with the module file extensions. 3405 const FrontendOptions &frontendOpts = getFrontendOpts(); 3406 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3407 code = ext->hashExtension(code); 3408 } 3409 3410 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3411 // affects the debug info in the PCM. 3412 if (getCodeGenOpts().DebugTypeExtRefs) 3413 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3414 code = hash_combine(code, KeyValue.first, KeyValue.second); 3415 3416 // Extend the signature with the enabled sanitizers, if at least one is 3417 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3418 SanitizerSet SanHash = LangOpts->Sanitize; 3419 SanHash.clear(getPPTransparentSanitizers()); 3420 if (!SanHash.empty()) 3421 code = hash_combine(code, SanHash.Mask); 3422 3423 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3424 } 3425 3426 template<typename IntTy> 3427 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 3428 IntTy Default, 3429 DiagnosticsEngine *Diags) { 3430 IntTy Res = Default; 3431 if (Arg *A = Args.getLastArg(Id)) { 3432 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 3433 if (Diags) 3434 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 3435 << A->getValue(); 3436 } 3437 } 3438 return Res; 3439 } 3440 3441 namespace clang { 3442 3443 // Declared in clang/Frontend/Utils.h. 3444 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 3445 DiagnosticsEngine *Diags) { 3446 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 3447 } 3448 3449 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 3450 uint64_t Default, 3451 DiagnosticsEngine *Diags) { 3452 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 3453 } 3454 3455 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3456 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3457 DiagnosticsEngine &Diags) { 3458 return createVFSFromCompilerInvocation(CI, Diags, 3459 llvm::vfs::getRealFileSystem()); 3460 } 3461 3462 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3463 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3464 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3465 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3466 return BaseFS; 3467 3468 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3469 // earlier vfs files are on the bottom 3470 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3471 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3472 Result->getBufferForFile(File); 3473 if (!Buffer) { 3474 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3475 continue; 3476 } 3477 3478 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3479 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3480 /*DiagContext*/ nullptr, Result); 3481 if (!FS) { 3482 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3483 continue; 3484 } 3485 3486 Result = FS; 3487 } 3488 return Result; 3489 } 3490 3491 } // namespace clang 3492