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/FileManager.h" 14 #include "clang/Basic/Version.h" 15 #include "clang/Config/config.h" 16 #include "clang/Driver/DriverDiagnostic.h" 17 #include "clang/Driver/Options.h" 18 #include "clang/Driver/Util.h" 19 #include "clang/Frontend/FrontendDiagnostic.h" 20 #include "clang/Frontend/LangStandard.h" 21 #include "clang/Frontend/Utils.h" 22 #include "clang/Lex/HeaderSearchOptions.h" 23 #include "clang/Lex/PreprocessorOptions.h" 24 #include "clang/Serialization/ASTReader.h" 25 #include "clang/Serialization/ModuleFileExtension.h" 26 #include "llvm/ADT/Hashing.h" 27 #include "llvm/ADT/STLExtras.h" 28 #include "llvm/ADT/SmallVector.h" 29 #include "llvm/ADT/StringExtras.h" 30 #include "llvm/ADT/StringSwitch.h" 31 #include "llvm/ADT/Triple.h" 32 #include "llvm/Linker/Linker.h" 33 #include "llvm/Option/Arg.h" 34 #include "llvm/Option/ArgList.h" 35 #include "llvm/Option/OptTable.h" 36 #include "llvm/Option/Option.h" 37 #include "llvm/ProfileData/InstrProfReader.h" 38 #include "llvm/Support/CodeGen.h" 39 #include "llvm/Support/ErrorHandling.h" 40 #include "llvm/Support/FileSystem.h" 41 #include "llvm/Support/Host.h" 42 #include "llvm/Support/Path.h" 43 #include "llvm/Support/Process.h" 44 #include "llvm/Target/TargetOptions.h" 45 #include "llvm/Support/ScopedPrinter.h" 46 #include <atomic> 47 #include <memory> 48 #include <sys/stat.h> 49 #include <system_error> 50 using namespace clang; 51 52 //===----------------------------------------------------------------------===// 53 // Initialization. 54 //===----------------------------------------------------------------------===// 55 56 CompilerInvocationBase::CompilerInvocationBase() 57 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 58 DiagnosticOpts(new DiagnosticOptions()), 59 HeaderSearchOpts(new HeaderSearchOptions()), 60 PreprocessorOpts(new PreprocessorOptions()) {} 61 62 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 63 : RefCountedBase<CompilerInvocation>(), 64 LangOpts(new LangOptions(*X.getLangOpts())), 65 TargetOpts(new TargetOptions(X.getTargetOpts())), 66 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 67 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 68 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 69 70 CompilerInvocationBase::~CompilerInvocationBase() {} 71 72 //===----------------------------------------------------------------------===// 73 // Deserialization (from args) 74 //===----------------------------------------------------------------------===// 75 76 using namespace clang::driver; 77 using namespace clang::driver::options; 78 using namespace llvm::opt; 79 80 // 81 82 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 83 DiagnosticsEngine &Diags) { 84 unsigned DefaultOpt = 0; 85 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 86 DefaultOpt = 2; 87 88 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 89 if (A->getOption().matches(options::OPT_O0)) 90 return 0; 91 92 if (A->getOption().matches(options::OPT_Ofast)) 93 return 3; 94 95 assert (A->getOption().matches(options::OPT_O)); 96 97 StringRef S(A->getValue()); 98 if (S == "s" || S == "z" || S.empty()) 99 return 2; 100 101 if (S == "g") 102 return 1; 103 104 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 105 } 106 107 return DefaultOpt; 108 } 109 110 static unsigned getOptimizationLevelSize(ArgList &Args) { 111 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 112 if (A->getOption().matches(options::OPT_O)) { 113 switch (A->getValue()[0]) { 114 default: 115 return 0; 116 case 's': 117 return 1; 118 case 'z': 119 return 2; 120 } 121 } 122 } 123 return 0; 124 } 125 126 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 127 OptSpecifier GroupWithValue, 128 std::vector<std::string> &Diagnostics) { 129 for (Arg *A : Args.filtered(Group)) { 130 if (A->getOption().getKind() == Option::FlagClass) { 131 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 132 // its name (minus the "W" or "R" at the beginning) to the warning list. 133 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 134 } else if (A->getOption().matches(GroupWithValue)) { 135 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 136 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 137 } else { 138 // Otherwise, add its value (for OPT_W_Joined and similar). 139 for (const char *Arg : A->getValues()) 140 Diagnostics.emplace_back(Arg); 141 } 142 } 143 } 144 145 static void getAllNoBuiltinFuncValues(ArgList &Args, 146 std::vector<std::string> &Funcs) { 147 SmallVector<const char *, 8> Values; 148 for (const auto &Arg : Args) { 149 const Option &O = Arg->getOption(); 150 if (O.matches(options::OPT_fno_builtin_)) { 151 const char *FuncName = Arg->getValue(); 152 if (Builtin::Context::isBuiltinFunc(FuncName)) 153 Values.push_back(FuncName); 154 } 155 } 156 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 157 } 158 159 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 160 DiagnosticsEngine &Diags) { 161 using namespace options; 162 bool Success = true; 163 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 164 StringRef Name = A->getValue(); 165 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 166 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 167 .Case(CMDFLAG, NAME##Model) 168 #include "clang/StaticAnalyzer/Core/Analyses.def" 169 .Default(NumStores); 170 if (Value == NumStores) { 171 Diags.Report(diag::err_drv_invalid_value) 172 << A->getAsString(Args) << Name; 173 Success = false; 174 } else { 175 Opts.AnalysisStoreOpt = Value; 176 } 177 } 178 179 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 180 StringRef Name = A->getValue(); 181 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 182 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 183 .Case(CMDFLAG, NAME##Model) 184 #include "clang/StaticAnalyzer/Core/Analyses.def" 185 .Default(NumConstraints); 186 if (Value == NumConstraints) { 187 Diags.Report(diag::err_drv_invalid_value) 188 << A->getAsString(Args) << Name; 189 Success = false; 190 } else { 191 Opts.AnalysisConstraintsOpt = Value; 192 } 193 } 194 195 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 196 StringRef Name = A->getValue(); 197 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 198 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 199 .Case(CMDFLAG, PD_##NAME) 200 #include "clang/StaticAnalyzer/Core/Analyses.def" 201 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 202 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 203 Diags.Report(diag::err_drv_invalid_value) 204 << A->getAsString(Args) << Name; 205 Success = false; 206 } else { 207 Opts.AnalysisDiagOpt = Value; 208 } 209 } 210 211 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 212 StringRef Name = A->getValue(); 213 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 214 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 215 .Case(CMDFLAG, NAME) 216 #include "clang/StaticAnalyzer/Core/Analyses.def" 217 .Default(NumPurgeModes); 218 if (Value == NumPurgeModes) { 219 Diags.Report(diag::err_drv_invalid_value) 220 << A->getAsString(Args) << Name; 221 Success = false; 222 } else { 223 Opts.AnalysisPurgeOpt = Value; 224 } 225 } 226 227 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 228 StringRef Name = A->getValue(); 229 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 230 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 231 .Case(CMDFLAG, NAME) 232 #include "clang/StaticAnalyzer/Core/Analyses.def" 233 .Default(NumInliningModes); 234 if (Value == NumInliningModes) { 235 Diags.Report(diag::err_drv_invalid_value) 236 << A->getAsString(Args) << Name; 237 Success = false; 238 } else { 239 Opts.InliningMode = Value; 240 } 241 } 242 243 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 244 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 245 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 246 247 Opts.visualizeExplodedGraphWithGraphViz = 248 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 249 Opts.visualizeExplodedGraphWithUbiGraph = 250 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 251 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 252 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 253 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 254 Opts.AnalyzeNestedBlocks = 255 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 256 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 257 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 258 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 259 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 260 Opts.maxBlockVisitOnPath = 261 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 262 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 263 Opts.InlineMaxStackDepth = 264 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 265 Opts.InlineMaxStackDepth, Diags); 266 267 Opts.CheckersControlList.clear(); 268 for (const Arg *A : 269 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 270 A->claim(); 271 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 272 // We can have a list of comma separated checker names, e.g: 273 // '-analyzer-checker=cocoa,unix' 274 StringRef checkerList = A->getValue(); 275 SmallVector<StringRef, 4> checkers; 276 checkerList.split(checkers, ","); 277 for (StringRef checker : checkers) 278 Opts.CheckersControlList.emplace_back(checker, enable); 279 } 280 281 // Go through the analyzer configuration options. 282 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 283 A->claim(); 284 // We can have a list of comma separated config names, e.g: 285 // '-analyzer-config key1=val1,key2=val2' 286 StringRef configList = A->getValue(); 287 SmallVector<StringRef, 4> configVals; 288 configList.split(configVals, ","); 289 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 290 StringRef key, val; 291 std::tie(key, val) = configVals[i].split("="); 292 if (val.empty()) { 293 Diags.Report(SourceLocation(), 294 diag::err_analyzer_config_no_value) << configVals[i]; 295 Success = false; 296 break; 297 } 298 if (val.find('=') != StringRef::npos) { 299 Diags.Report(SourceLocation(), 300 diag::err_analyzer_config_multiple_values) 301 << configVals[i]; 302 Success = false; 303 break; 304 } 305 Opts.Config[key] = val; 306 } 307 } 308 309 return Success; 310 } 311 312 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 313 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 314 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 315 return true; 316 } 317 318 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 319 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 320 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 321 } 322 323 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 324 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 325 StringRef Value = A->getValue(); 326 if (Value == "small" || Value == "kernel" || Value == "medium" || 327 Value == "large") 328 return Value; 329 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 330 } 331 return "default"; 332 } 333 334 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 335 /// It returns a pointer to the newly generated Regex instance. 336 static std::shared_ptr<llvm::Regex> 337 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 338 Arg *RpassArg) { 339 StringRef Val = RpassArg->getValue(); 340 std::string RegexError; 341 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 342 if (!Pattern->isValid(RegexError)) { 343 Diags.Report(diag::err_drv_optimization_remark_pattern) 344 << RegexError << RpassArg->getAsString(Args); 345 Pattern.reset(); 346 } 347 return Pattern; 348 } 349 350 static bool parseDiagnosticLevelMask(StringRef FlagName, 351 const std::vector<std::string> &Levels, 352 DiagnosticsEngine *Diags, 353 DiagnosticLevelMask &M) { 354 bool Success = true; 355 for (const auto &Level : Levels) { 356 DiagnosticLevelMask const PM = 357 llvm::StringSwitch<DiagnosticLevelMask>(Level) 358 .Case("note", DiagnosticLevelMask::Note) 359 .Case("remark", DiagnosticLevelMask::Remark) 360 .Case("warning", DiagnosticLevelMask::Warning) 361 .Case("error", DiagnosticLevelMask::Error) 362 .Default(DiagnosticLevelMask::None); 363 if (PM == DiagnosticLevelMask::None) { 364 Success = false; 365 if (Diags) 366 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 367 } 368 M = M | PM; 369 } 370 return Success; 371 } 372 373 static void parseSanitizerKinds(StringRef FlagName, 374 const std::vector<std::string> &Sanitizers, 375 DiagnosticsEngine &Diags, SanitizerSet &S) { 376 for (const auto &Sanitizer : Sanitizers) { 377 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 378 if (K == 0) 379 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 380 else 381 S.set(K, true); 382 } 383 } 384 385 // Set the profile kind for fprofile-instrument. 386 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 387 DiagnosticsEngine &Diags) { 388 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 389 if (A == nullptr) 390 return; 391 StringRef S = A->getValue(); 392 unsigned I = llvm::StringSwitch<unsigned>(S) 393 .Case("none", CodeGenOptions::ProfileNone) 394 .Case("clang", CodeGenOptions::ProfileClangInstr) 395 .Case("llvm", CodeGenOptions::ProfileIRInstr) 396 .Default(~0U); 397 if (I == ~0U) { 398 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 399 << S; 400 return; 401 } 402 CodeGenOptions::ProfileInstrKind Instrumentor = 403 static_cast<CodeGenOptions::ProfileInstrKind>(I); 404 Opts.setProfileInstr(Instrumentor); 405 } 406 407 // Set the profile kind using fprofile-instrument-use-path. 408 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 409 const Twine &ProfileName) { 410 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 411 // In error, return silently and let Clang PGOUse report the error message. 412 if (auto E = ReaderOrErr.takeError()) { 413 llvm::consumeError(std::move(E)); 414 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 415 return; 416 } 417 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 418 std::move(ReaderOrErr.get()); 419 if (PGOReader->isIRLevelProfile()) 420 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 421 else 422 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 423 } 424 425 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 426 DiagnosticsEngine &Diags, 427 const TargetOptions &TargetOpts) { 428 using namespace options; 429 bool Success = true; 430 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 431 432 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 433 // TODO: This could be done in Driver 434 unsigned MaxOptLevel = 3; 435 if (OptimizationLevel > MaxOptLevel) { 436 // If the optimization level is not supported, fall back on the default 437 // optimization 438 Diags.Report(diag::warn_drv_optimization_value) 439 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 440 OptimizationLevel = MaxOptLevel; 441 } 442 Opts.OptimizationLevel = OptimizationLevel; 443 444 // We must always run at least the always inlining pass. 445 Opts.setInlining( 446 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 447 : CodeGenOptions::OnlyAlwaysInlining); 448 // -fno-inline-functions overrides OptimizationLevel > 1. 449 Opts.NoInline = Args.hasArg(OPT_fno_inline); 450 if (Arg* InlineArg = Args.getLastArg(options::OPT_finline_functions, 451 options::OPT_finline_hint_functions, 452 options::OPT_fno_inline_functions)) { 453 const Option& InlineOpt = InlineArg->getOption(); 454 if (InlineOpt.matches(options::OPT_finline_functions)) 455 Opts.setInlining(CodeGenOptions::NormalInlining); 456 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 457 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 458 else 459 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 460 } 461 462 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 463 StringRef Name = A->getValue(); 464 if (Name == "Accelerate") 465 Opts.setVecLib(CodeGenOptions::Accelerate); 466 else if (Name == "SVML") 467 Opts.setVecLib(CodeGenOptions::SVML); 468 else if (Name == "none") 469 Opts.setVecLib(CodeGenOptions::NoLibrary); 470 else 471 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 472 } 473 474 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 475 unsigned Val = 476 llvm::StringSwitch<unsigned>(A->getValue()) 477 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 478 .Case("limited", codegenoptions::LimitedDebugInfo) 479 .Case("standalone", codegenoptions::FullDebugInfo) 480 .Default(~0U); 481 if (Val == ~0U) 482 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 483 << A->getValue(); 484 else 485 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 486 } 487 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 488 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 489 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 490 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 491 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 492 .Default(~0U); 493 if (Val == ~0U) 494 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 495 << A->getValue(); 496 else 497 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 498 } 499 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 500 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 501 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 502 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 503 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 504 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 505 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 506 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 507 Opts.DebugExplicitImport = Triple.isPS4CPU(); 508 509 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 510 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 511 512 if (const Arg *A = 513 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 514 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 515 516 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 517 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 518 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 519 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 520 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 521 OPT_fuse_register_sized_bitfield_access); 522 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 523 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 524 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 525 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 526 Opts.NoCommon = Args.hasArg(OPT_fno_common); 527 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 528 Opts.OptimizeSize = getOptimizationLevelSize(Args); 529 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 530 Args.hasArg(OPT_ffreestanding)); 531 if (Opts.SimplifyLibCalls) 532 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 533 Opts.UnrollLoops = 534 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 535 (Opts.OptimizationLevel > 1)); 536 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 537 538 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 539 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 540 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 541 542 setPGOInstrumentor(Opts, Args, Diags); 543 Opts.InstrProfileOutput = 544 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 545 Opts.ProfileInstrumentUsePath = 546 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 547 if (!Opts.ProfileInstrumentUsePath.empty()) 548 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 549 550 Opts.CoverageMapping = 551 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 552 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 553 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 554 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 555 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 556 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 557 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 558 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 559 Opts.QualifiedFunctionTypeInfo = Args.hasArg(OPT_mqualified_function_type_info); 560 Opts.CodeModel = getCodeModel(Args, Diags); 561 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 562 Opts.DisableFPElim = 563 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 564 Opts.DisableFree = Args.hasArg(OPT_disable_free); 565 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 566 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 567 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 568 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 569 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 570 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 571 Args.hasArg(OPT_cl_finite_math_only) || 572 Args.hasArg(OPT_cl_fast_relaxed_math)); 573 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 574 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 575 Args.hasArg(OPT_cl_finite_math_only) || 576 Args.hasArg(OPT_cl_fast_relaxed_math)); 577 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 578 Args.hasArg(OPT_cl_no_signed_zeros)); 579 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 580 Opts.CorrectlyRoundedDivSqrt = 581 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 582 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 583 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 584 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 585 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 586 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 587 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 588 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 589 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 590 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 591 Opts.IncrementalLinkerCompatible = 592 Args.hasArg(OPT_mincremental_linker_compatible); 593 Opts.PIECopyRelocations = 594 Args.hasArg(OPT_mpie_copy_relocations); 595 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 596 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 597 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 598 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 599 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 600 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 601 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 602 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 603 Args.hasArg(OPT_cl_fast_relaxed_math); 604 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 605 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 606 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 607 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 608 Diags.Report(diag::err_drv_invalid_value) 609 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 610 << Opts.ThreadModel; 611 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 612 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 613 614 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 615 OPT_fno_function_sections, false); 616 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 617 OPT_fno_data_sections, false); 618 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 619 OPT_fno_unique_section_names, true); 620 621 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 622 623 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 624 625 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 626 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ); 627 Opts.EmitSummaryIndex = A && A->containsValue("thin"); 628 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 629 if (IK != IK_LLVM_IR) 630 Diags.Report(diag::err_drv_argument_only_allowed_with) 631 << A->getAsString(Args) << "-x ir"; 632 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 633 } 634 635 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 636 637 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 638 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 639 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 640 641 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 642 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 643 644 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 645 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 646 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 647 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 648 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 649 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 650 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 651 Opts.CoverageNoFunctionNamesInData = 652 Args.hasArg(OPT_coverage_no_function_names_in_data); 653 Opts.CoverageExitBlockBeforeBody = 654 Args.hasArg(OPT_coverage_exit_block_before_body); 655 if (Args.hasArg(OPT_coverage_version_EQ)) { 656 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 657 if (CoverageVersion.size() != 4) { 658 Diags.Report(diag::err_drv_invalid_value) 659 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 660 << CoverageVersion; 661 } else { 662 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 663 } 664 } 665 } 666 // Handle -fembed-bitcode option. 667 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 668 StringRef Name = A->getValue(); 669 unsigned Model = llvm::StringSwitch<unsigned>(Name) 670 .Case("off", CodeGenOptions::Embed_Off) 671 .Case("all", CodeGenOptions::Embed_All) 672 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 673 .Case("marker", CodeGenOptions::Embed_Marker) 674 .Default(~0U); 675 if (Model == ~0U) { 676 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 677 Success = false; 678 } else 679 Opts.setEmbedBitcode( 680 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 681 } 682 // FIXME: For backend options that are not yet recorded as function 683 // attributes in the IR, keep track of them so we can embed them in a 684 // separate data section and use them when building the bitcode. 685 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 686 for (const auto &A : Args) { 687 // Do not encode output and input. 688 if (A->getOption().getID() == options::OPT_o || 689 A->getOption().getID() == options::OPT_INPUT || 690 A->getOption().getID() == options::OPT_x || 691 A->getOption().getID() == options::OPT_fembed_bitcode || 692 (A->getOption().getGroup().isValid() && 693 A->getOption().getGroup().getID() == options::OPT_W_Group)) 694 continue; 695 ArgStringList ASL; 696 A->render(Args, ASL); 697 for (const auto &arg : ASL) { 698 StringRef ArgStr(arg); 699 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 700 // using \00 to seperate each commandline options. 701 Opts.CmdArgs.push_back('\0'); 702 } 703 } 704 } 705 706 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 707 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 708 Opts.XRayInstructionThreshold = 709 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_, 200, Diags); 710 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 711 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 712 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 713 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 714 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 715 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 716 unsigned LinkFlags = llvm::Linker::Flags::None; 717 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) 718 LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded | 719 llvm::Linker::Flags::InternalizeLinkedSymbols; 720 Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue())); 721 } 722 Opts.SanitizeCoverageType = 723 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 724 Opts.SanitizeCoverageIndirectCalls = 725 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 726 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 727 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 728 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 729 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 730 Opts.SanitizeCoverage8bitCounters = 731 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 732 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 733 Opts.SanitizeCoverageTracePCGuard = 734 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 735 Opts.SanitizeMemoryTrackOrigins = 736 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 737 Opts.SanitizeMemoryUseAfterDtor = 738 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 739 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 740 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 741 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 742 OPT_fno_sanitize_address_use_after_scope)) { 743 Opts.SanitizeAddressUseAfterScope = 744 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 745 } 746 Opts.SSPBufferSize = 747 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 748 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 749 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 750 StringRef Val = A->getValue(); 751 unsigned StackAlignment = Opts.StackAlignment; 752 Val.getAsInteger(10, StackAlignment); 753 Opts.StackAlignment = StackAlignment; 754 } 755 756 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 757 StringRef Val = A->getValue(); 758 unsigned StackProbeSize = Opts.StackProbeSize; 759 Val.getAsInteger(0, StackProbeSize); 760 Opts.StackProbeSize = StackProbeSize; 761 } 762 763 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 764 StringRef Name = A->getValue(); 765 unsigned Method = llvm::StringSwitch<unsigned>(Name) 766 .Case("legacy", CodeGenOptions::Legacy) 767 .Case("non-legacy", CodeGenOptions::NonLegacy) 768 .Case("mixed", CodeGenOptions::Mixed) 769 .Default(~0U); 770 if (Method == ~0U) { 771 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 772 Success = false; 773 } else { 774 Opts.setObjCDispatchMethod( 775 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 776 } 777 } 778 779 Opts.EmulatedTLS = 780 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 781 782 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 783 StringRef Name = A->getValue(); 784 unsigned Model = llvm::StringSwitch<unsigned>(Name) 785 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 786 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 787 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 788 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 789 .Default(~0U); 790 if (Model == ~0U) { 791 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 792 Success = false; 793 } else { 794 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 795 } 796 } 797 798 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 799 StringRef Val = A->getValue(); 800 if (Val == "fast") 801 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 802 else if (Val == "on") 803 Opts.setFPContractMode(CodeGenOptions::FPC_On); 804 else if (Val == "off") 805 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 806 else 807 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 808 } 809 810 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 811 StringRef Val = A->getValue(); 812 if (Val == "ieee") 813 Opts.FPDenormalMode = "ieee"; 814 else if (Val == "preserve-sign") 815 Opts.FPDenormalMode = "preserve-sign"; 816 else if (Val == "positive-zero") 817 Opts.FPDenormalMode = "positive-zero"; 818 else 819 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 820 } 821 822 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 823 if (A->getOption().matches(OPT_fpcc_struct_return)) { 824 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 825 } else { 826 assert(A->getOption().matches(OPT_freg_struct_return)); 827 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 828 } 829 } 830 831 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 832 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 833 bool NeedLocTracking = false; 834 835 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 836 if (!Opts.OptRecordFile.empty()) 837 NeedLocTracking = true; 838 839 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 840 Opts.OptimizationRemarkPattern = 841 GenerateOptimizationRemarkRegex(Diags, Args, A); 842 NeedLocTracking = true; 843 } 844 845 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 846 Opts.OptimizationRemarkMissedPattern = 847 GenerateOptimizationRemarkRegex(Diags, Args, A); 848 NeedLocTracking = true; 849 } 850 851 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 852 Opts.OptimizationRemarkAnalysisPattern = 853 GenerateOptimizationRemarkRegex(Diags, Args, A); 854 NeedLocTracking = true; 855 } 856 857 Opts.DiagnosticsWithHotness = 858 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 859 if (Opts.DiagnosticsWithHotness && 860 Opts.getProfileUse() == CodeGenOptions::ProfileNone) 861 Diags.Report(diag::warn_drv_fdiagnostics_show_hotness_requires_pgo); 862 863 // If the user requested to use a sample profile for PGO, then the 864 // backend will need to track source location information so the profile 865 // can be incorporated into the IR. 866 if (!Opts.SampleProfileFile.empty()) 867 NeedLocTracking = true; 868 869 // If the user requested a flag that requires source locations available in 870 // the backend, make sure that the backend tracks source location information. 871 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 872 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 873 874 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 875 876 // Parse -fsanitize-recover= arguments. 877 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 878 parseSanitizerKinds("-fsanitize-recover=", 879 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 880 Opts.SanitizeRecover); 881 parseSanitizerKinds("-fsanitize-trap=", 882 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 883 Opts.SanitizeTrap); 884 885 Opts.CudaGpuBinaryFileNames = 886 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 887 888 Opts.Backchain = Args.hasArg(OPT_mbackchain); 889 890 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 891 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 892 893 return Success; 894 } 895 896 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 897 ArgList &Args) { 898 using namespace options; 899 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 900 Opts.Targets = Args.getAllArgValues(OPT_MT); 901 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 902 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 903 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 904 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 905 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 906 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 907 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 908 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 909 Opts.ModuleDependencyOutputDir = 910 Args.getLastArgValue(OPT_module_dependency_dir); 911 if (Args.hasArg(OPT_MV)) 912 Opts.OutputFormat = DependencyOutputFormat::NMake; 913 // Add sanitizer blacklists as extra dependencies. 914 // They won't be discovered by the regular preprocessor, so 915 // we let make / ninja to know about this implicit dependency. 916 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 917 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 918 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 919 ModuleFiles.end()); 920 } 921 922 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 923 // Color diagnostics default to auto ("on" if terminal supports) in the driver 924 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 925 // Support both clang's -f[no-]color-diagnostics and gcc's 926 // -f[no-]diagnostics-colors[=never|always|auto]. 927 enum { 928 Colors_On, 929 Colors_Off, 930 Colors_Auto 931 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 932 for (Arg *A : Args) { 933 const Option &O = A->getOption(); 934 if (!O.matches(options::OPT_fcolor_diagnostics) && 935 !O.matches(options::OPT_fdiagnostics_color) && 936 !O.matches(options::OPT_fno_color_diagnostics) && 937 !O.matches(options::OPT_fno_diagnostics_color) && 938 !O.matches(options::OPT_fdiagnostics_color_EQ)) 939 continue; 940 941 if (O.matches(options::OPT_fcolor_diagnostics) || 942 O.matches(options::OPT_fdiagnostics_color)) { 943 ShowColors = Colors_On; 944 } else if (O.matches(options::OPT_fno_color_diagnostics) || 945 O.matches(options::OPT_fno_diagnostics_color)) { 946 ShowColors = Colors_Off; 947 } else { 948 assert(O.matches(options::OPT_fdiagnostics_color_EQ)); 949 StringRef Value(A->getValue()); 950 if (Value == "always") 951 ShowColors = Colors_On; 952 else if (Value == "never") 953 ShowColors = Colors_Off; 954 else if (Value == "auto") 955 ShowColors = Colors_Auto; 956 } 957 } 958 if (ShowColors == Colors_On || 959 (ShowColors == Colors_Auto && llvm::sys::Process::StandardErrHasColors())) 960 return true; 961 return false; 962 } 963 964 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 965 DiagnosticsEngine *Diags, 966 bool DefaultDiagColor, bool DefaultShowOpt) { 967 using namespace options; 968 bool Success = true; 969 970 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 971 if (Arg *A = 972 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 973 Opts.DiagnosticSerializationFile = A->getValue(); 974 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 975 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 976 Opts.Pedantic = Args.hasArg(OPT_pedantic); 977 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 978 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 979 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 980 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 981 OPT_fno_show_column, 982 /*Default=*/true); 983 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 984 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 985 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 986 Opts.ShowOptionNames = 987 Args.hasFlag(OPT_fdiagnostics_show_option, 988 OPT_fno_diagnostics_show_option, DefaultShowOpt); 989 990 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 991 992 // Default behavior is to not to show note include stacks. 993 Opts.ShowNoteIncludeStack = false; 994 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 995 OPT_fno_diagnostics_show_note_include_stack)) 996 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 997 Opts.ShowNoteIncludeStack = true; 998 999 StringRef ShowOverloads = 1000 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1001 if (ShowOverloads == "best") 1002 Opts.setShowOverloads(Ovl_Best); 1003 else if (ShowOverloads == "all") 1004 Opts.setShowOverloads(Ovl_All); 1005 else { 1006 Success = false; 1007 if (Diags) 1008 Diags->Report(diag::err_drv_invalid_value) 1009 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1010 << ShowOverloads; 1011 } 1012 1013 StringRef ShowCategory = 1014 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1015 if (ShowCategory == "none") 1016 Opts.ShowCategories = 0; 1017 else if (ShowCategory == "id") 1018 Opts.ShowCategories = 1; 1019 else if (ShowCategory == "name") 1020 Opts.ShowCategories = 2; 1021 else { 1022 Success = false; 1023 if (Diags) 1024 Diags->Report(diag::err_drv_invalid_value) 1025 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1026 << ShowCategory; 1027 } 1028 1029 StringRef Format = 1030 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1031 if (Format == "clang") 1032 Opts.setFormat(DiagnosticOptions::Clang); 1033 else if (Format == "msvc") 1034 Opts.setFormat(DiagnosticOptions::MSVC); 1035 else if (Format == "msvc-fallback") { 1036 Opts.setFormat(DiagnosticOptions::MSVC); 1037 Opts.CLFallbackMode = true; 1038 } else if (Format == "vi") 1039 Opts.setFormat(DiagnosticOptions::Vi); 1040 else { 1041 Success = false; 1042 if (Diags) 1043 Diags->Report(diag::err_drv_invalid_value) 1044 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1045 << Format; 1046 } 1047 1048 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1049 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1050 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1051 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1052 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1053 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1054 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1055 Diags, DiagMask); 1056 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1057 DiagMask = DiagnosticLevelMask::All; 1058 Opts.setVerifyIgnoreUnexpected(DiagMask); 1059 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1060 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1061 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1062 Opts.MacroBacktraceLimit = 1063 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1064 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1065 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1066 Args, OPT_ftemplate_backtrace_limit, 1067 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1068 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1069 Args, OPT_fconstexpr_backtrace_limit, 1070 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1071 Opts.SpellCheckingLimit = getLastArgIntValue( 1072 Args, OPT_fspell_checking_limit, 1073 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1074 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1075 DiagnosticOptions::DefaultTabStop, Diags); 1076 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1077 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1078 if (Diags) 1079 Diags->Report(diag::warn_ignoring_ftabstop_value) 1080 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1081 } 1082 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1083 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1084 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1085 1086 return Success; 1087 } 1088 1089 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1090 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1091 } 1092 1093 /// Parse the argument to the -ftest-module-file-extension 1094 /// command-line argument. 1095 /// 1096 /// \returns true on error, false on success. 1097 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1098 std::string &BlockName, 1099 unsigned &MajorVersion, 1100 unsigned &MinorVersion, 1101 bool &Hashed, 1102 std::string &UserInfo) { 1103 SmallVector<StringRef, 5> Args; 1104 Arg.split(Args, ':', 5); 1105 if (Args.size() < 5) 1106 return true; 1107 1108 BlockName = Args[0]; 1109 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1110 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1111 if (Args[3].getAsInteger(2, Hashed)) return true; 1112 if (Args.size() > 4) 1113 UserInfo = Args[4]; 1114 return false; 1115 } 1116 1117 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1118 DiagnosticsEngine &Diags, 1119 bool &IsHeaderFile) { 1120 using namespace options; 1121 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1122 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1123 switch (A->getOption().getID()) { 1124 default: 1125 llvm_unreachable("Invalid option in group!"); 1126 case OPT_ast_list: 1127 Opts.ProgramAction = frontend::ASTDeclList; break; 1128 case OPT_ast_dump: 1129 case OPT_ast_dump_lookups: 1130 Opts.ProgramAction = frontend::ASTDump; break; 1131 case OPT_ast_print: 1132 Opts.ProgramAction = frontend::ASTPrint; break; 1133 case OPT_ast_view: 1134 Opts.ProgramAction = frontend::ASTView; break; 1135 case OPT_dump_raw_tokens: 1136 Opts.ProgramAction = frontend::DumpRawTokens; break; 1137 case OPT_dump_tokens: 1138 Opts.ProgramAction = frontend::DumpTokens; break; 1139 case OPT_S: 1140 Opts.ProgramAction = frontend::EmitAssembly; break; 1141 case OPT_emit_llvm_bc: 1142 Opts.ProgramAction = frontend::EmitBC; break; 1143 case OPT_emit_html: 1144 Opts.ProgramAction = frontend::EmitHTML; break; 1145 case OPT_emit_llvm: 1146 Opts.ProgramAction = frontend::EmitLLVM; break; 1147 case OPT_emit_llvm_only: 1148 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1149 case OPT_emit_codegen_only: 1150 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1151 case OPT_emit_obj: 1152 Opts.ProgramAction = frontend::EmitObj; break; 1153 case OPT_fixit_EQ: 1154 Opts.FixItSuffix = A->getValue(); 1155 // fall-through! 1156 case OPT_fixit: 1157 Opts.ProgramAction = frontend::FixIt; break; 1158 case OPT_emit_module: 1159 Opts.ProgramAction = frontend::GenerateModule; break; 1160 case OPT_emit_module_interface: 1161 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1162 case OPT_emit_pch: 1163 Opts.ProgramAction = frontend::GeneratePCH; break; 1164 case OPT_emit_pth: 1165 Opts.ProgramAction = frontend::GeneratePTH; break; 1166 case OPT_init_only: 1167 Opts.ProgramAction = frontend::InitOnly; break; 1168 case OPT_fsyntax_only: 1169 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1170 case OPT_module_file_info: 1171 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1172 case OPT_verify_pch: 1173 Opts.ProgramAction = frontend::VerifyPCH; break; 1174 case OPT_print_decl_contexts: 1175 Opts.ProgramAction = frontend::PrintDeclContext; break; 1176 case OPT_print_preamble: 1177 Opts.ProgramAction = frontend::PrintPreamble; break; 1178 case OPT_E: 1179 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1180 case OPT_rewrite_macros: 1181 Opts.ProgramAction = frontend::RewriteMacros; break; 1182 case OPT_rewrite_objc: 1183 Opts.ProgramAction = frontend::RewriteObjC; break; 1184 case OPT_rewrite_test: 1185 Opts.ProgramAction = frontend::RewriteTest; break; 1186 case OPT_analyze: 1187 Opts.ProgramAction = frontend::RunAnalysis; break; 1188 case OPT_migrate: 1189 Opts.ProgramAction = frontend::MigrateSource; break; 1190 case OPT_Eonly: 1191 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1192 } 1193 } 1194 1195 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1196 Opts.Plugins.emplace_back(A->getValue(0)); 1197 Opts.ProgramAction = frontend::PluginAction; 1198 Opts.ActionName = A->getValue(); 1199 } 1200 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1201 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1202 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1203 1204 for (const std::string &Arg : 1205 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1206 std::string BlockName; 1207 unsigned MajorVersion; 1208 unsigned MinorVersion; 1209 bool Hashed; 1210 std::string UserInfo; 1211 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1212 MinorVersion, Hashed, UserInfo)) { 1213 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1214 1215 continue; 1216 } 1217 1218 // Add the testing module file extension. 1219 Opts.ModuleFileExtensions.push_back( 1220 new TestModuleFileExtension(BlockName, MajorVersion, MinorVersion, 1221 Hashed, UserInfo)); 1222 } 1223 1224 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1225 Opts.CodeCompletionAt = 1226 ParsedSourceLocation::FromString(A->getValue()); 1227 if (Opts.CodeCompletionAt.FileName.empty()) 1228 Diags.Report(diag::err_drv_invalid_value) 1229 << A->getAsString(Args) << A->getValue(); 1230 } 1231 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1232 1233 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1234 Opts.Plugins = Args.getAllArgValues(OPT_load); 1235 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1236 Opts.ShowHelp = Args.hasArg(OPT_help); 1237 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1238 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1239 Opts.ShowVersion = Args.hasArg(OPT_version); 1240 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1241 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1242 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1243 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1244 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1245 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1246 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1247 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1248 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1249 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1250 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1251 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1252 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 1253 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1254 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1255 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1256 1257 Opts.CodeCompleteOpts.IncludeMacros 1258 = Args.hasArg(OPT_code_completion_macros); 1259 Opts.CodeCompleteOpts.IncludeCodePatterns 1260 = Args.hasArg(OPT_code_completion_patterns); 1261 Opts.CodeCompleteOpts.IncludeGlobals 1262 = !Args.hasArg(OPT_no_code_completion_globals); 1263 Opts.CodeCompleteOpts.IncludeBriefComments 1264 = Args.hasArg(OPT_code_completion_brief_comments); 1265 1266 Opts.OverrideRecordLayoutsFile 1267 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1268 Opts.AuxTriple = 1269 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1270 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1271 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1272 1273 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1274 OPT_arcmt_modify, 1275 OPT_arcmt_migrate)) { 1276 switch (A->getOption().getID()) { 1277 default: 1278 llvm_unreachable("missed a case"); 1279 case OPT_arcmt_check: 1280 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1281 break; 1282 case OPT_arcmt_modify: 1283 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1284 break; 1285 case OPT_arcmt_migrate: 1286 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1287 break; 1288 } 1289 } 1290 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1291 Opts.ARCMTMigrateReportOut 1292 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1293 Opts.ARCMTMigrateEmitARCErrors 1294 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1295 1296 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1297 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1298 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1299 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1300 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1301 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1302 if (Args.hasArg(OPT_objcmt_migrate_property)) 1303 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1304 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1305 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1306 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1307 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1308 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1309 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1310 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1311 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1312 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1313 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1314 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1315 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1316 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1317 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1318 if (Args.hasArg(OPT_objcmt_atomic_property)) 1319 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1320 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1321 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1322 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1323 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1324 if (Args.hasArg(OPT_objcmt_migrate_all)) 1325 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1326 1327 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1328 1329 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1330 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1331 Diags.Report(diag::err_drv_argument_not_allowed_with) 1332 << "ARC migration" << "ObjC migration"; 1333 } 1334 1335 InputKind DashX = IK_None; 1336 if (const Arg *A = Args.getLastArg(OPT_x)) { 1337 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 1338 .Case("c", IK_C) 1339 .Case("cl", IK_OpenCL) 1340 .Case("cuda", IK_CUDA) 1341 .Case("c++", IK_CXX) 1342 .Case("c++-module", IK_CXX) 1343 .Case("objective-c", IK_ObjC) 1344 .Case("objective-c++", IK_ObjCXX) 1345 .Case("cpp-output", IK_PreprocessedC) 1346 .Case("assembler-with-cpp", IK_Asm) 1347 .Case("c++-cpp-output", IK_PreprocessedCXX) 1348 .Case("c++-module-cpp-output", IK_PreprocessedCXX) 1349 .Case("cuda-cpp-output", IK_PreprocessedCuda) 1350 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1351 .Case("objc-cpp-output", IK_PreprocessedObjC) 1352 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1353 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1354 .Case("c-header", IK_C) 1355 .Case("cl-header", IK_OpenCL) 1356 .Case("objective-c-header", IK_ObjC) 1357 .Case("c++-header", IK_CXX) 1358 .Case("objective-c++-header", IK_ObjCXX) 1359 .Cases("ast", "pcm", IK_AST) 1360 .Case("ir", IK_LLVM_IR) 1361 .Case("renderscript", IK_RenderScript) 1362 .Default(IK_None); 1363 if (DashX == IK_None) 1364 Diags.Report(diag::err_drv_invalid_value) 1365 << A->getAsString(Args) << A->getValue(); 1366 IsHeaderFile = llvm::StringSwitch<bool>(A->getValue()) 1367 .Case("c-header", true) 1368 .Case("cl-header", true) 1369 .Case("objective-c-header", true) 1370 .Case("c++-header", true) 1371 .Case("objective-c++-header", true) 1372 .Default(false); 1373 } 1374 1375 // '-' is the default input if none is given. 1376 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1377 Opts.Inputs.clear(); 1378 if (Inputs.empty()) 1379 Inputs.push_back("-"); 1380 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1381 InputKind IK = DashX; 1382 if (IK == IK_None) { 1383 IK = FrontendOptions::getInputKindForExtension( 1384 StringRef(Inputs[i]).rsplit('.').second); 1385 // FIXME: Remove this hack. 1386 if (i == 0) 1387 DashX = IK; 1388 } 1389 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1390 } 1391 1392 return DashX; 1393 } 1394 1395 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1396 void *MainAddr) { 1397 std::string ClangExecutable = 1398 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1399 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1400 1401 // Compute the path to the resource directory. 1402 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1403 SmallString<128> P(Dir); 1404 if (ClangResourceDir != "") 1405 llvm::sys::path::append(P, ClangResourceDir); 1406 else 1407 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1408 "clang", CLANG_VERSION_STRING); 1409 1410 return P.str(); 1411 } 1412 1413 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1414 using namespace options; 1415 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1416 Opts.Verbose = Args.hasArg(OPT_v); 1417 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1418 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1419 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1420 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1421 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1422 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1423 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 1424 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1425 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1426 Opts.AddPrebuiltModulePath(A->getValue()); 1427 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1428 Opts.ModulesValidateDiagnosticOptions = 1429 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1430 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1431 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1432 Opts.ModuleCachePruneInterval = 1433 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1434 Opts.ModuleCachePruneAfter = 1435 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1436 Opts.ModulesValidateOncePerBuildSession = 1437 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1438 Opts.BuildSessionTimestamp = 1439 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1440 Opts.ModulesValidateSystemHeaders = 1441 Args.hasArg(OPT_fmodules_validate_system_headers); 1442 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1443 Opts.ModuleFormat = A->getValue(); 1444 1445 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1446 StringRef MacroDef = A->getValue(); 1447 Opts.ModulesIgnoreMacros.insert( 1448 llvm::CachedHashString(MacroDef.split('=').first)); 1449 } 1450 1451 // Add -I..., -F..., and -index-header-map options in order. 1452 bool IsIndexHeaderMap = false; 1453 bool IsSysrootSpecified = 1454 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1455 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1456 if (A->getOption().matches(OPT_index_header_map)) { 1457 // -index-header-map applies to the next -I or -F. 1458 IsIndexHeaderMap = true; 1459 continue; 1460 } 1461 1462 frontend::IncludeDirGroup Group = 1463 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1464 1465 bool IsFramework = A->getOption().matches(OPT_F); 1466 std::string Path = A->getValue(); 1467 1468 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1469 SmallString<32> Buffer; 1470 llvm::sys::path::append(Buffer, Opts.Sysroot, 1471 llvm::StringRef(A->getValue()).substr(1)); 1472 Path = Buffer.str(); 1473 } 1474 1475 Opts.AddPath(Path, Group, IsFramework, 1476 /*IgnoreSysroot*/ true); 1477 IsIndexHeaderMap = false; 1478 } 1479 1480 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1481 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1482 for (const Arg *A : 1483 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1484 if (A->getOption().matches(OPT_iprefix)) 1485 Prefix = A->getValue(); 1486 else if (A->getOption().matches(OPT_iwithprefix)) 1487 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1488 else 1489 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1490 } 1491 1492 for (const Arg *A : Args.filtered(OPT_idirafter)) 1493 Opts.AddPath(A->getValue(), frontend::After, false, true); 1494 for (const Arg *A : Args.filtered(OPT_iquote)) 1495 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1496 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1497 Opts.AddPath(A->getValue(), frontend::System, false, 1498 !A->getOption().matches(OPT_iwithsysroot)); 1499 for (const Arg *A : Args.filtered(OPT_iframework)) 1500 Opts.AddPath(A->getValue(), frontend::System, true, true); 1501 1502 // Add the paths for the various language specific isystem flags. 1503 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1504 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1505 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1506 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1507 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1508 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1509 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1510 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1511 1512 // Add the internal paths from a driver that detects standard include paths. 1513 for (const Arg *A : 1514 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1515 frontend::IncludeDirGroup Group = frontend::System; 1516 if (A->getOption().matches(OPT_internal_externc_isystem)) 1517 Group = frontend::ExternCSystem; 1518 Opts.AddPath(A->getValue(), Group, false, true); 1519 } 1520 1521 // Add the path prefixes which are implicitly treated as being system headers. 1522 for (const Arg *A : 1523 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1524 Opts.AddSystemHeaderPrefix( 1525 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1526 1527 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1528 Opts.AddVFSOverlayFile(A->getValue()); 1529 } 1530 1531 static bool isOpenCL(LangStandard::Kind LangStd) { 1532 return LangStd == LangStandard::lang_opencl || 1533 LangStd == LangStandard::lang_opencl11 || 1534 LangStd == LangStandard::lang_opencl12 || 1535 LangStd == LangStandard::lang_opencl20; 1536 } 1537 1538 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1539 const llvm::Triple &T, 1540 PreprocessorOptions &PPOpts, 1541 LangStandard::Kind LangStd) { 1542 // Set some properties which depend solely on the input kind; it would be nice 1543 // to move these to the language standard, and have the driver resolve the 1544 // input kind + language standard. 1545 if (IK == IK_Asm) { 1546 Opts.AsmPreprocessor = 1; 1547 } else if (IK == IK_ObjC || 1548 IK == IK_ObjCXX || 1549 IK == IK_PreprocessedObjC || 1550 IK == IK_PreprocessedObjCXX) { 1551 Opts.ObjC1 = Opts.ObjC2 = 1; 1552 } 1553 1554 if (LangStd == LangStandard::lang_unspecified) { 1555 // Based on the base language, pick one. 1556 switch (IK) { 1557 case IK_None: 1558 case IK_AST: 1559 case IK_LLVM_IR: 1560 llvm_unreachable("Invalid input kind!"); 1561 case IK_OpenCL: 1562 LangStd = LangStandard::lang_opencl; 1563 break; 1564 case IK_CUDA: 1565 case IK_PreprocessedCuda: 1566 LangStd = LangStandard::lang_cuda; 1567 break; 1568 case IK_Asm: 1569 case IK_C: 1570 case IK_PreprocessedC: 1571 case IK_ObjC: 1572 case IK_PreprocessedObjC: 1573 // The PS4 uses C99 as the default C standard. 1574 if (T.isPS4()) 1575 LangStd = LangStandard::lang_gnu99; 1576 else 1577 LangStd = LangStandard::lang_gnu11; 1578 break; 1579 case IK_CXX: 1580 case IK_PreprocessedCXX: 1581 case IK_ObjCXX: 1582 case IK_PreprocessedObjCXX: 1583 LangStd = LangStandard::lang_gnucxx98; 1584 break; 1585 case IK_RenderScript: 1586 LangStd = LangStandard::lang_c99; 1587 break; 1588 } 1589 } 1590 1591 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1592 Opts.LineComment = Std.hasLineComments(); 1593 Opts.C99 = Std.isC99(); 1594 Opts.C11 = Std.isC11(); 1595 Opts.CPlusPlus = Std.isCPlusPlus(); 1596 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1597 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1598 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1599 Opts.Digraphs = Std.hasDigraphs(); 1600 Opts.GNUMode = Std.isGNUMode(); 1601 Opts.GNUInline = Std.isC89(); 1602 Opts.HexFloats = Std.hasHexFloats(); 1603 Opts.ImplicitInt = Std.hasImplicitInt(); 1604 1605 // Set OpenCL Version. 1606 Opts.OpenCL = isOpenCL(LangStd) || IK == IK_OpenCL; 1607 if (LangStd == LangStandard::lang_opencl) 1608 Opts.OpenCLVersion = 100; 1609 else if (LangStd == LangStandard::lang_opencl11) 1610 Opts.OpenCLVersion = 110; 1611 else if (LangStd == LangStandard::lang_opencl12) 1612 Opts.OpenCLVersion = 120; 1613 else if (LangStd == LangStandard::lang_opencl20) 1614 Opts.OpenCLVersion = 200; 1615 1616 // OpenCL has some additional defaults. 1617 if (Opts.OpenCL) { 1618 Opts.AltiVec = 0; 1619 Opts.ZVector = 0; 1620 Opts.CXXOperatorNames = 1; 1621 Opts.LaxVectorConversions = 0; 1622 Opts.DefaultFPContract = 1; 1623 Opts.NativeHalfType = 1; 1624 Opts.NativeHalfArgsAndReturns = 1; 1625 // Include default header file for OpenCL. 1626 if (Opts.IncludeDefaultHeader) { 1627 PPOpts.Includes.push_back("opencl-c.h"); 1628 } 1629 } 1630 1631 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || 1632 LangStd == LangStandard::lang_cuda; 1633 1634 Opts.RenderScript = IK == IK_RenderScript; 1635 if (Opts.RenderScript) { 1636 Opts.NativeHalfType = 1; 1637 Opts.NativeHalfArgsAndReturns = 1; 1638 } 1639 1640 // OpenCL and C++ both have bool, true, false keywords. 1641 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1642 1643 // OpenCL has half keyword 1644 Opts.Half = Opts.OpenCL; 1645 1646 // C++ has wchar_t keyword. 1647 Opts.WChar = Opts.CPlusPlus; 1648 1649 Opts.GNUKeywords = Opts.GNUMode; 1650 Opts.CXXOperatorNames = Opts.CPlusPlus; 1651 1652 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1653 1654 Opts.DollarIdents = !Opts.AsmPreprocessor; 1655 } 1656 1657 /// Attempt to parse a visibility value out of the given argument. 1658 static Visibility parseVisibility(Arg *arg, ArgList &args, 1659 DiagnosticsEngine &diags) { 1660 StringRef value = arg->getValue(); 1661 if (value == "default") { 1662 return DefaultVisibility; 1663 } else if (value == "hidden" || value == "internal") { 1664 return HiddenVisibility; 1665 } else if (value == "protected") { 1666 // FIXME: diagnose if target does not support protected visibility 1667 return ProtectedVisibility; 1668 } 1669 1670 diags.Report(diag::err_drv_invalid_value) 1671 << arg->getAsString(args) << value; 1672 return DefaultVisibility; 1673 } 1674 1675 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1676 const TargetOptions &TargetOpts, 1677 PreprocessorOptions &PPOpts, 1678 DiagnosticsEngine &Diags) { 1679 // FIXME: Cleanup per-file based stuff. 1680 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1681 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1682 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1683 #define LANGSTANDARD(id, name, desc, features) \ 1684 .Case(name, LangStandard::lang_##id) 1685 #define LANGSTANDARD_ALIAS(id, alias) \ 1686 .Case(alias, LangStandard::lang_##id) 1687 #include "clang/Frontend/LangStandards.def" 1688 .Default(LangStandard::lang_unspecified); 1689 if (LangStd == LangStandard::lang_unspecified) 1690 Diags.Report(diag::err_drv_invalid_value) 1691 << A->getAsString(Args) << A->getValue(); 1692 else { 1693 // Valid standard, check to make sure language and standard are 1694 // compatible. 1695 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1696 switch (IK) { 1697 case IK_C: 1698 case IK_ObjC: 1699 case IK_PreprocessedC: 1700 case IK_PreprocessedObjC: 1701 if (!(Std.isC89() || Std.isC99())) 1702 Diags.Report(diag::err_drv_argument_not_allowed_with) 1703 << A->getAsString(Args) << "C/ObjC"; 1704 break; 1705 case IK_CXX: 1706 case IK_ObjCXX: 1707 case IK_PreprocessedCXX: 1708 case IK_PreprocessedObjCXX: 1709 if (!Std.isCPlusPlus()) 1710 Diags.Report(diag::err_drv_argument_not_allowed_with) 1711 << A->getAsString(Args) << "C++/ObjC++"; 1712 break; 1713 case IK_OpenCL: 1714 if (!isOpenCL(LangStd)) 1715 Diags.Report(diag::err_drv_argument_not_allowed_with) 1716 << A->getAsString(Args) << "OpenCL"; 1717 break; 1718 case IK_CUDA: 1719 case IK_PreprocessedCuda: 1720 if (!Std.isCPlusPlus()) 1721 Diags.Report(diag::err_drv_argument_not_allowed_with) 1722 << A->getAsString(Args) << "CUDA"; 1723 break; 1724 default: 1725 break; 1726 } 1727 } 1728 } 1729 1730 // -cl-std only applies for OpenCL language standards. 1731 // Override the -std option in this case. 1732 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1733 LangStandard::Kind OpenCLLangStd 1734 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1735 .Cases("cl", "CL", LangStandard::lang_opencl) 1736 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1737 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1738 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1739 .Default(LangStandard::lang_unspecified); 1740 1741 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1742 Diags.Report(diag::err_drv_invalid_value) 1743 << A->getAsString(Args) << A->getValue(); 1744 } 1745 else 1746 LangStd = OpenCLLangStd; 1747 } 1748 1749 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1750 1751 llvm::Triple T(TargetOpts.Triple); 1752 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1753 1754 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1755 // This option should be deprecated for CL > 1.0 because 1756 // this option was added for compatibility with OpenCL 1.0. 1757 if (Args.getLastArg(OPT_cl_strict_aliasing) 1758 && Opts.OpenCLVersion > 100) { 1759 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1760 std::string(".") + 1761 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1762 Diags.Report(diag::warn_option_invalid_ocl_version) 1763 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1764 } 1765 1766 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1767 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1768 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1769 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1770 // name, as it doesn't seem a useful distinction. 1771 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1772 Opts.GNUKeywords); 1773 1774 if (Args.hasArg(OPT_fno_operator_names)) 1775 Opts.CXXOperatorNames = 0; 1776 1777 if (Args.hasArg(OPT_fcuda_is_device)) 1778 Opts.CUDAIsDevice = 1; 1779 1780 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1781 Opts.CUDAAllowVariadicFunctions = 1; 1782 1783 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1784 Opts.CUDAHostDeviceConstexpr = 0; 1785 1786 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1787 Opts.CUDADeviceFlushDenormalsToZero = 1; 1788 1789 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1790 Opts.CUDADeviceApproxTranscendentals = 1; 1791 1792 if (Opts.ObjC1) { 1793 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1794 StringRef value = arg->getValue(); 1795 if (Opts.ObjCRuntime.tryParse(value)) 1796 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1797 } 1798 1799 if (Args.hasArg(OPT_fobjc_gc_only)) 1800 Opts.setGC(LangOptions::GCOnly); 1801 else if (Args.hasArg(OPT_fobjc_gc)) 1802 Opts.setGC(LangOptions::HybridGC); 1803 else if (Args.hasArg(OPT_fobjc_arc)) { 1804 Opts.ObjCAutoRefCount = 1; 1805 if (!Opts.ObjCRuntime.allowsARC()) 1806 Diags.Report(diag::err_arc_unsupported_on_runtime); 1807 } 1808 1809 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 1810 // whether the feature is actually enabled. This is predominantly 1811 // determined by -fobjc-runtime, but we allow it to be overridden 1812 // from the command line for testing purposes. 1813 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1814 Opts.ObjCWeakRuntime = 1; 1815 else 1816 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 1817 1818 // ObjCWeak determines whether __weak is actually enabled. 1819 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 1820 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 1821 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 1822 assert(!Opts.ObjCWeak); 1823 } else if (Opts.getGC() != LangOptions::NonGC) { 1824 Diags.Report(diag::err_objc_weak_with_gc); 1825 } else if (!Opts.ObjCWeakRuntime) { 1826 Diags.Report(diag::err_objc_weak_unsupported); 1827 } else { 1828 Opts.ObjCWeak = 1; 1829 } 1830 } else if (Opts.ObjCAutoRefCount) { 1831 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 1832 } 1833 1834 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1835 Opts.ObjCInferRelatedResultType = 0; 1836 1837 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1838 Opts.ObjCSubscriptingLegacyRuntime = 1839 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1840 } 1841 1842 if (Args.hasArg(OPT_fgnu89_inline)) { 1843 if (Opts.CPlusPlus) 1844 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline" 1845 << "C++/ObjC++"; 1846 else 1847 Opts.GNUInline = 1; 1848 } 1849 1850 if (Args.hasArg(OPT_fapple_kext)) { 1851 if (!Opts.CPlusPlus) 1852 Diags.Report(diag::warn_c_kext); 1853 else 1854 Opts.AppleKext = 1; 1855 } 1856 1857 if (Args.hasArg(OPT_print_ivar_layout)) 1858 Opts.ObjCGCBitmapPrint = 1; 1859 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1860 Opts.NoConstantCFStrings = 1; 1861 1862 if (Args.hasArg(OPT_faltivec)) 1863 Opts.AltiVec = 1; 1864 1865 if (Args.hasArg(OPT_fzvector)) 1866 Opts.ZVector = 1; 1867 1868 if (Args.hasArg(OPT_pthread)) 1869 Opts.POSIXThreads = 1; 1870 1871 // The value-visibility mode defaults to "default". 1872 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1873 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1874 } else { 1875 Opts.setValueVisibilityMode(DefaultVisibility); 1876 } 1877 1878 // The type-visibility mode defaults to the value-visibility mode. 1879 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1880 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1881 } else { 1882 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1883 } 1884 1885 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1886 Opts.InlineVisibilityHidden = 1; 1887 1888 if (Args.hasArg(OPT_ftrapv)) { 1889 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1890 // Set the handler, if one is specified. 1891 Opts.OverflowHandler = 1892 Args.getLastArgValue(OPT_ftrapv_handler); 1893 } 1894 else if (Args.hasArg(OPT_fwrapv)) 1895 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1896 1897 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1898 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1899 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1900 Opts.MSCompatibilityVersion = 0; 1901 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1902 VersionTuple VT; 1903 if (VT.tryParse(A->getValue())) 1904 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1905 << A->getValue(); 1906 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1907 VT.getMinor().getValueOr(0) * 100000 + 1908 VT.getSubminor().getValueOr(0); 1909 } 1910 1911 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1912 // is specified, or -std is set to a conforming mode. 1913 // Trigraphs are disabled by default in c++1z onwards. 1914 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1915 Opts.Trigraphs = 1916 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1917 1918 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1919 OPT_fno_dollars_in_identifiers, 1920 Opts.DollarIdents); 1921 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1922 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1923 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1924 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1925 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1926 Opts.ConstStrings); 1927 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1928 Opts.LaxVectorConversions = 0; 1929 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1930 Opts.ThreadsafeStatics = 0; 1931 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1932 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1933 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1934 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1935 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 1936 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1937 1938 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 1939 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1940 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 1941 && Opts.OpenCLVersion >= 200); 1942 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1943 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 1944 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 1945 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 1946 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1947 Opts.ModulesDeclUse = 1948 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1949 Opts.ModulesLocalVisibility = 1950 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 1951 Opts.ModulesSearchAll = Opts.Modules && 1952 !Args.hasArg(OPT_fno_modules_search_all) && 1953 Args.hasArg(OPT_fmodules_search_all); 1954 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1955 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 1956 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1957 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1958 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1959 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1960 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1961 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1962 if (!Opts.NoBuiltin) 1963 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 1964 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1965 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 1966 Opts.AlignedAllocation = 1967 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 1968 Opts.AlignedAllocation); 1969 Opts.NewAlignOverride = 1970 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 1971 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 1972 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 1973 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 1974 << A->getValue(); 1975 Opts.NewAlignOverride = 0; 1976 } 1977 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 1978 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1979 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1980 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1981 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1982 Opts.InstantiationDepth = 1983 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 1984 Opts.ArrowDepth = 1985 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1986 Opts.ConstexprCallDepth = 1987 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1988 Opts.ConstexprStepLimit = 1989 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1990 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1991 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1992 Opts.NumLargeByValueCopy = 1993 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1994 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1995 Opts.ObjCConstantStringClass = 1996 Args.getLastArgValue(OPT_fconstant_string_class); 1997 Opts.ObjCDefaultSynthProperties = 1998 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 1999 Opts.EncodeExtendedBlockSig = 2000 Args.hasArg(OPT_fencode_extended_block_signature); 2001 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2002 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2003 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2004 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2005 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2006 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2007 Opts.Static = Args.hasArg(OPT_static_define); 2008 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2009 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2010 || Args.hasArg(OPT_fdump_record_layouts); 2011 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2012 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2013 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2014 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2015 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2016 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2017 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2018 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2019 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2020 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2021 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2022 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2023 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2024 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2025 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2026 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2027 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2028 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2029 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2030 // is enabled. 2031 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2032 | Opts.NativeHalfArgsAndReturns; 2033 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2034 2035 // __declspec is enabled by default for the PS4 by the driver, and also 2036 // enabled for Microsoft Extensions or Borland Extensions, here. 2037 // 2038 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2039 // CUDA extension. However, it is required for supporting 2040 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2041 // been rewritten in terms of something more generic, remove the Opts.CUDA 2042 // term here. 2043 Opts.DeclSpecKeyword = 2044 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2045 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2046 2047 // For now, we only support local submodule visibility in C++ (because we 2048 // heavily depend on the ODR for merging redefinitions). 2049 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) 2050 Diags.Report(diag::err_drv_argument_not_allowed_with) 2051 << "-fmodules-local-submodule-visibility" << "C"; 2052 2053 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2054 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2055 .Case("target", LangOptions::ASMM_Target) 2056 .Case("no", LangOptions::ASMM_Off) 2057 .Case("yes", LangOptions::ASMM_On) 2058 .Default(255)) { 2059 default: 2060 Diags.Report(diag::err_drv_invalid_value) 2061 << "-faddress-space-map-mangling=" << A->getValue(); 2062 break; 2063 case LangOptions::ASMM_Target: 2064 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2065 break; 2066 case LangOptions::ASMM_On: 2067 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2068 break; 2069 case LangOptions::ASMM_Off: 2070 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2071 break; 2072 } 2073 } 2074 2075 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2076 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2077 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2078 A->getValue()) 2079 .Case("single", 2080 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2081 .Case("multiple", 2082 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2083 .Case("virtual", 2084 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2085 .Default(LangOptions::PPTMK_BestCase); 2086 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2087 Diags.Report(diag::err_drv_invalid_value) 2088 << "-fms-memptr-rep=" << A->getValue(); 2089 2090 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2091 } 2092 2093 // Check for MS default calling conventions being specified. 2094 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2095 LangOptions::DefaultCallingConvention DefaultCC = 2096 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2097 A->getValue()) 2098 .Case("cdecl", LangOptions::DCC_CDecl) 2099 .Case("fastcall", LangOptions::DCC_FastCall) 2100 .Case("stdcall", LangOptions::DCC_StdCall) 2101 .Case("vectorcall", LangOptions::DCC_VectorCall) 2102 .Default(LangOptions::DCC_None); 2103 if (DefaultCC == LangOptions::DCC_None) 2104 Diags.Report(diag::err_drv_invalid_value) 2105 << "-fdefault-calling-conv=" << A->getValue(); 2106 2107 llvm::Triple T(TargetOpts.Triple); 2108 llvm::Triple::ArchType Arch = T.getArch(); 2109 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2110 DefaultCC == LangOptions::DCC_StdCall) && 2111 Arch != llvm::Triple::x86; 2112 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2113 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2114 if (emitError) 2115 Diags.Report(diag::err_drv_argument_not_allowed_with) 2116 << A->getSpelling() << T.getTriple(); 2117 else 2118 Opts.setDefaultCallingConv(DefaultCC); 2119 } 2120 2121 // -mrtd option 2122 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2123 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2124 Diags.Report(diag::err_drv_argument_not_allowed_with) 2125 << A->getSpelling() << "-fdefault-calling-conv"; 2126 else { 2127 llvm::Triple T(TargetOpts.Triple); 2128 if (T.getArch() != llvm::Triple::x86) 2129 Diags.Report(diag::err_drv_argument_not_allowed_with) 2130 << A->getSpelling() << T.getTriple(); 2131 else 2132 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2133 } 2134 } 2135 2136 // Check if -fopenmp is specified. 2137 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2138 Opts.OpenMPUseTLS = 2139 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2140 Opts.OpenMPIsDevice = 2141 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2142 2143 if (Opts.OpenMP) { 2144 int Version = 2145 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2146 if (Version != 0) 2147 Opts.OpenMP = Version; 2148 // Provide diagnostic when a given target is not expected to be an OpenMP 2149 // device or host. 2150 if (!Opts.OpenMPIsDevice) { 2151 switch (T.getArch()) { 2152 default: 2153 break; 2154 // Add unsupported host targets here: 2155 case llvm::Triple::nvptx: 2156 case llvm::Triple::nvptx64: 2157 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2158 << TargetOpts.Triple; 2159 break; 2160 } 2161 } 2162 } 2163 2164 // Get the OpenMP target triples if any. 2165 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2166 2167 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2168 llvm::Triple TT(A->getValue(i)); 2169 2170 if (TT.getArch() == llvm::Triple::UnknownArch) 2171 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2172 else 2173 Opts.OMPTargetTriples.push_back(TT); 2174 } 2175 } 2176 2177 // Get OpenMP host file path if any and report if a non existent file is 2178 // found 2179 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2180 Opts.OMPHostIRFile = A->getValue(); 2181 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2182 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2183 << Opts.OMPHostIRFile; 2184 } 2185 2186 // Record whether the __DEPRECATED define was requested. 2187 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2188 OPT_fno_deprecated_macro, 2189 Opts.Deprecated); 2190 2191 // FIXME: Eliminate this dependency. 2192 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2193 OptSize = getOptimizationLevelSize(Args); 2194 Opts.Optimize = Opt != 0; 2195 Opts.OptimizeSize = OptSize != 0; 2196 2197 // This is the __NO_INLINE__ define, which just depends on things like the 2198 // optimization level and -fno-inline, not actually whether the backend has 2199 // inlining enabled. 2200 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 2201 2202 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2203 Args.hasArg(OPT_cl_fast_relaxed_math); 2204 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2205 Args.hasArg(OPT_cl_finite_math_only) || 2206 Args.hasArg(OPT_cl_fast_relaxed_math); 2207 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2208 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2209 Args.hasArg(OPT_cl_fast_relaxed_math); 2210 2211 Opts.RetainCommentsFromSystemHeaders = 2212 Args.hasArg(OPT_fretain_comments_from_system_headers); 2213 2214 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2215 switch (SSP) { 2216 default: 2217 Diags.Report(diag::err_drv_invalid_value) 2218 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2219 break; 2220 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2221 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2222 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2223 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2224 } 2225 2226 // Parse -fsanitize= arguments. 2227 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2228 Diags, Opts.Sanitize); 2229 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2230 Opts.SanitizeAddressFieldPadding = 2231 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2232 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2233 } 2234 2235 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2236 FileManager &FileMgr, 2237 DiagnosticsEngine &Diags) { 2238 using namespace options; 2239 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2240 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2241 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2242 Opts.TokenCache = A->getValue(); 2243 else 2244 Opts.TokenCache = Opts.ImplicitPTHInclude; 2245 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2246 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2247 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2248 2249 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2250 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2251 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2252 2253 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2254 StringRef Value(A->getValue()); 2255 size_t Comma = Value.find(','); 2256 unsigned Bytes = 0; 2257 unsigned EndOfLine = 0; 2258 2259 if (Comma == StringRef::npos || 2260 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2261 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2262 Diags.Report(diag::err_drv_preamble_format); 2263 else { 2264 Opts.PrecompiledPreambleBytes.first = Bytes; 2265 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2266 } 2267 } 2268 2269 // Add macros from the command line. 2270 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2271 if (A->getOption().matches(OPT_D)) 2272 Opts.addMacroDef(A->getValue()); 2273 else 2274 Opts.addMacroUndef(A->getValue()); 2275 } 2276 2277 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2278 2279 // Add the ordered list of -includes. 2280 for (const Arg *A : Args.filtered(OPT_include)) 2281 Opts.Includes.emplace_back(A->getValue()); 2282 2283 for (const Arg *A : Args.filtered(OPT_chain_include)) 2284 Opts.ChainedIncludes.emplace_back(A->getValue()); 2285 2286 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2287 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2288 2289 if (Split.second.empty()) { 2290 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2291 continue; 2292 } 2293 2294 Opts.addRemappedFile(Split.first, Split.second); 2295 } 2296 2297 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2298 StringRef Name = A->getValue(); 2299 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2300 .Case("libc++", ARCXX_libcxx) 2301 .Case("libstdc++", ARCXX_libstdcxx) 2302 .Case("none", ARCXX_nolib) 2303 .Default(~0U); 2304 if (Library == ~0U) 2305 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2306 else 2307 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2308 } 2309 } 2310 2311 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2312 ArgList &Args, 2313 frontend::ActionKind Action) { 2314 using namespace options; 2315 2316 switch (Action) { 2317 case frontend::ASTDeclList: 2318 case frontend::ASTDump: 2319 case frontend::ASTPrint: 2320 case frontend::ASTView: 2321 case frontend::EmitAssembly: 2322 case frontend::EmitBC: 2323 case frontend::EmitHTML: 2324 case frontend::EmitLLVM: 2325 case frontend::EmitLLVMOnly: 2326 case frontend::EmitCodeGenOnly: 2327 case frontend::EmitObj: 2328 case frontend::FixIt: 2329 case frontend::GenerateModule: 2330 case frontend::GenerateModuleInterface: 2331 case frontend::GeneratePCH: 2332 case frontend::GeneratePTH: 2333 case frontend::ParseSyntaxOnly: 2334 case frontend::ModuleFileInfo: 2335 case frontend::VerifyPCH: 2336 case frontend::PluginAction: 2337 case frontend::PrintDeclContext: 2338 case frontend::RewriteObjC: 2339 case frontend::RewriteTest: 2340 case frontend::RunAnalysis: 2341 case frontend::MigrateSource: 2342 Opts.ShowCPP = 0; 2343 break; 2344 2345 case frontend::DumpRawTokens: 2346 case frontend::DumpTokens: 2347 case frontend::InitOnly: 2348 case frontend::PrintPreamble: 2349 case frontend::PrintPreprocessedInput: 2350 case frontend::RewriteMacros: 2351 case frontend::RunPreprocessorOnly: 2352 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2353 break; 2354 } 2355 2356 Opts.ShowComments = Args.hasArg(OPT_C); 2357 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2358 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2359 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2360 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2361 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2362 } 2363 2364 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2365 DiagnosticsEngine &Diags) { 2366 using namespace options; 2367 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2368 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2369 StringRef Value = A->getValue(); 2370 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2371 .Case("default", llvm::EABI::Default) 2372 .Case("4", llvm::EABI::EABI4) 2373 .Case("5", llvm::EABI::EABI5) 2374 .Case("gnu", llvm::EABI::GNU) 2375 .Default(llvm::EABI::Unknown); 2376 if (EABIVersion == llvm::EABI::Unknown) 2377 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2378 << Value; 2379 else 2380 Opts.EABIVersion = Value; 2381 } 2382 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2383 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2384 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2385 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2386 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2387 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2388 // Use the default target triple if unspecified. 2389 if (Opts.Triple.empty()) 2390 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2391 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2392 } 2393 2394 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2395 const char *const *ArgBegin, 2396 const char *const *ArgEnd, 2397 DiagnosticsEngine &Diags) { 2398 bool Success = true; 2399 2400 // Parse the arguments. 2401 std::unique_ptr<OptTable> Opts(createDriverOptTable()); 2402 const unsigned IncludedFlagsBitmask = options::CC1Option; 2403 unsigned MissingArgIndex, MissingArgCount; 2404 InputArgList Args = 2405 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2406 MissingArgCount, IncludedFlagsBitmask); 2407 LangOptions &LangOpts = *Res.getLangOpts(); 2408 2409 // Check for missing argument error. 2410 if (MissingArgCount) { 2411 Diags.Report(diag::err_drv_missing_argument) 2412 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2413 Success = false; 2414 } 2415 2416 // Issue errors on unknown arguments. 2417 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2418 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2419 Success = false; 2420 } 2421 2422 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2423 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2424 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2425 Success &= 2426 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2427 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2428 ParseCommentArgs(LangOpts.CommentOpts, Args); 2429 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2430 // FIXME: We shouldn't have to pass the DashX option around here 2431 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2432 LangOpts.IsHeaderFile); 2433 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2434 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2435 Res.getTargetOpts()); 2436 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args); 2437 if (DashX == IK_AST || DashX == IK_LLVM_IR) { 2438 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2439 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2440 // what the input type is. 2441 if (Args.hasArg(OPT_fobjc_arc)) 2442 LangOpts.ObjCAutoRefCount = 1; 2443 // PIClevel and PIELevel are needed during code generation and this should be 2444 // set regardless of the input type. 2445 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2446 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2447 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2448 Diags, LangOpts.Sanitize); 2449 } else { 2450 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2451 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2452 Res.getPreprocessorOpts(), Diags); 2453 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2454 LangOpts.ObjCExceptions = 1; 2455 } 2456 2457 if (LangOpts.CUDA) { 2458 // During CUDA device-side compilation, the aux triple is the 2459 // triple used for host compilation. 2460 if (LangOpts.CUDAIsDevice) 2461 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2462 2463 // Set default FP_CONTRACT to FAST. 2464 if (!Args.hasArg(OPT_ffp_contract)) 2465 Res.getCodeGenOpts().setFPContractMode(CodeGenOptions::FPC_Fast); 2466 } 2467 2468 // FIXME: Override value name discarding when asan or msan is used because the 2469 // backend passes depend on the name of the alloca in order to print out 2470 // names. 2471 Res.getCodeGenOpts().DiscardValueNames &= 2472 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2473 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2474 2475 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2476 // PCH file and find the original header name. Remove the need to do that in 2477 // ParsePreprocessorArgs and remove the FileManager 2478 // parameters from the function and the "FileManager.h" #include. 2479 FileManager FileMgr(Res.getFileSystemOpts()); 2480 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags); 2481 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2482 Res.getFrontendOpts().ProgramAction); 2483 2484 // Turn on -Wspir-compat for SPIR target. 2485 llvm::Triple T(Res.getTargetOpts().Triple); 2486 auto Arch = T.getArch(); 2487 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2488 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2489 } 2490 return Success; 2491 } 2492 2493 std::string CompilerInvocation::getModuleHash() const { 2494 // Note: For QoI reasons, the things we use as a hash here should all be 2495 // dumped via the -module-info flag. 2496 using llvm::hash_code; 2497 using llvm::hash_value; 2498 using llvm::hash_combine; 2499 2500 // Start the signature with the compiler version. 2501 // FIXME: We'd rather use something more cryptographically sound than 2502 // CityHash, but this will do for now. 2503 hash_code code = hash_value(getClangFullRepositoryVersion()); 2504 2505 // Extend the signature with the language options 2506 #define LANGOPT(Name, Bits, Default, Description) \ 2507 code = hash_combine(code, LangOpts->Name); 2508 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2509 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2510 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2511 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2512 #include "clang/Basic/LangOptions.def" 2513 2514 for (StringRef Feature : LangOpts->ModuleFeatures) 2515 code = hash_combine(code, Feature); 2516 2517 // Extend the signature with the target options. 2518 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2519 TargetOpts->ABI); 2520 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2521 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2522 2523 // Extend the signature with preprocessor options. 2524 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2525 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2526 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2527 2528 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2529 I = getPreprocessorOpts().Macros.begin(), 2530 IEnd = getPreprocessorOpts().Macros.end(); 2531 I != IEnd; ++I) { 2532 // If we're supposed to ignore this macro for the purposes of modules, 2533 // don't put it into the hash. 2534 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2535 // Check whether we're ignoring this macro. 2536 StringRef MacroDef = I->first; 2537 if (hsOpts.ModulesIgnoreMacros.count( 2538 llvm::CachedHashString(MacroDef.split('=').first))) 2539 continue; 2540 } 2541 2542 code = hash_combine(code, I->first, I->second); 2543 } 2544 2545 // Extend the signature with the sysroot and other header search options. 2546 code = hash_combine(code, hsOpts.Sysroot, 2547 hsOpts.ModuleFormat, 2548 hsOpts.UseDebugInfo, 2549 hsOpts.UseBuiltinIncludes, 2550 hsOpts.UseStandardSystemIncludes, 2551 hsOpts.UseStandardCXXIncludes, 2552 hsOpts.UseLibcxx, 2553 hsOpts.ModulesValidateDiagnosticOptions); 2554 code = hash_combine(code, hsOpts.ResourceDir); 2555 2556 // Extend the signature with the user build path. 2557 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2558 2559 // Extend the signature with the module file extensions. 2560 const FrontendOptions &frontendOpts = getFrontendOpts(); 2561 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2562 code = ext->hashExtension(code); 2563 } 2564 2565 // Darwin-specific hack: if we have a sysroot, use the contents and 2566 // modification time of 2567 // $sysroot/System/Library/CoreServices/SystemVersion.plist 2568 // as part of the module hash. 2569 if (!hsOpts.Sysroot.empty()) { 2570 SmallString<128> systemVersionFile; 2571 systemVersionFile += hsOpts.Sysroot; 2572 llvm::sys::path::append(systemVersionFile, "System"); 2573 llvm::sys::path::append(systemVersionFile, "Library"); 2574 llvm::sys::path::append(systemVersionFile, "CoreServices"); 2575 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 2576 2577 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 2578 llvm::MemoryBuffer::getFile(systemVersionFile); 2579 if (buffer) { 2580 code = hash_combine(code, buffer.get()->getBuffer()); 2581 2582 struct stat statBuf; 2583 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 2584 code = hash_combine(code, statBuf.st_mtime); 2585 } 2586 } 2587 2588 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2589 } 2590 2591 namespace clang { 2592 2593 template<typename IntTy> 2594 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2595 IntTy Default, 2596 DiagnosticsEngine *Diags) { 2597 IntTy Res = Default; 2598 if (Arg *A = Args.getLastArg(Id)) { 2599 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2600 if (Diags) 2601 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2602 << A->getValue(); 2603 } 2604 } 2605 return Res; 2606 } 2607 2608 2609 // Declared in clang/Frontend/Utils.h. 2610 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2611 DiagnosticsEngine *Diags) { 2612 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2613 } 2614 2615 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2616 uint64_t Default, 2617 DiagnosticsEngine *Diags) { 2618 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2619 } 2620 2621 void BuryPointer(const void *Ptr) { 2622 // This function may be called only a small fixed amount of times per each 2623 // invocation, otherwise we do actually have a leak which we want to report. 2624 // If this function is called more than kGraveYardMaxSize times, the pointers 2625 // will not be properly buried and a leak detector will report a leak, which 2626 // is what we want in such case. 2627 static const size_t kGraveYardMaxSize = 16; 2628 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2629 static std::atomic<unsigned> GraveYardSize; 2630 unsigned Idx = GraveYardSize++; 2631 if (Idx >= kGraveYardMaxSize) 2632 return; 2633 GraveYard[Idx] = Ptr; 2634 } 2635 2636 IntrusiveRefCntPtr<vfs::FileSystem> 2637 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2638 DiagnosticsEngine &Diags) { 2639 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2640 return vfs::getRealFileSystem(); 2641 2642 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2643 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2644 // earlier vfs files are on the bottom 2645 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2646 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2647 llvm::MemoryBuffer::getFile(File); 2648 if (!Buffer) { 2649 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2650 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2651 } 2652 2653 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2654 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2655 if (!FS.get()) { 2656 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2657 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2658 } 2659 Overlay->pushOverlay(FS); 2660 } 2661 return Overlay; 2662 } 2663 } // end namespace clang 2664