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 : LangOpts(new LangOptions(*X.getLangOpts())), 64 TargetOpts(new TargetOptions(X.getTargetOpts())), 65 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 66 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 67 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 68 69 CompilerInvocationBase::~CompilerInvocationBase() {} 70 71 //===----------------------------------------------------------------------===// 72 // Deserialization (from args) 73 //===----------------------------------------------------------------------===// 74 75 using namespace clang::driver; 76 using namespace clang::driver::options; 77 using namespace llvm::opt; 78 79 // 80 81 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 82 DiagnosticsEngine &Diags) { 83 unsigned DefaultOpt = 0; 84 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 85 DefaultOpt = 2; 86 87 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 88 if (A->getOption().matches(options::OPT_O0)) 89 return 0; 90 91 if (A->getOption().matches(options::OPT_Ofast)) 92 return 3; 93 94 assert (A->getOption().matches(options::OPT_O)); 95 96 StringRef S(A->getValue()); 97 if (S == "s" || S == "z" || S.empty()) 98 return 2; 99 100 if (S == "g") 101 return 1; 102 103 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 104 } 105 106 return DefaultOpt; 107 } 108 109 static unsigned getOptimizationLevelSize(ArgList &Args) { 110 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 111 if (A->getOption().matches(options::OPT_O)) { 112 switch (A->getValue()[0]) { 113 default: 114 return 0; 115 case 's': 116 return 1; 117 case 'z': 118 return 2; 119 } 120 } 121 } 122 return 0; 123 } 124 125 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 126 OptSpecifier GroupWithValue, 127 std::vector<std::string> &Diagnostics) { 128 for (Arg *A : Args.filtered(Group)) { 129 if (A->getOption().getKind() == Option::FlagClass) { 130 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 131 // its name (minus the "W" or "R" at the beginning) to the warning list. 132 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 133 } else if (A->getOption().matches(GroupWithValue)) { 134 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 135 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 136 } else { 137 // Otherwise, add its value (for OPT_W_Joined and similar). 138 for (const char *Arg : A->getValues()) 139 Diagnostics.emplace_back(Arg); 140 } 141 } 142 } 143 144 static void getAllNoBuiltinFuncValues(ArgList &Args, 145 std::vector<std::string> &Funcs) { 146 SmallVector<const char *, 8> Values; 147 for (const auto &Arg : Args) { 148 const Option &O = Arg->getOption(); 149 if (O.matches(options::OPT_fno_builtin_)) { 150 const char *FuncName = Arg->getValue(); 151 if (Builtin::Context::isBuiltinFunc(FuncName)) 152 Values.push_back(FuncName); 153 } 154 } 155 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 156 } 157 158 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 159 DiagnosticsEngine &Diags) { 160 using namespace options; 161 bool Success = true; 162 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 163 StringRef Name = A->getValue(); 164 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 165 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 166 .Case(CMDFLAG, NAME##Model) 167 #include "clang/StaticAnalyzer/Core/Analyses.def" 168 .Default(NumStores); 169 if (Value == NumStores) { 170 Diags.Report(diag::err_drv_invalid_value) 171 << A->getAsString(Args) << Name; 172 Success = false; 173 } else { 174 Opts.AnalysisStoreOpt = Value; 175 } 176 } 177 178 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 179 StringRef Name = A->getValue(); 180 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 181 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 182 .Case(CMDFLAG, NAME##Model) 183 #include "clang/StaticAnalyzer/Core/Analyses.def" 184 .Default(NumConstraints); 185 if (Value == NumConstraints) { 186 Diags.Report(diag::err_drv_invalid_value) 187 << A->getAsString(Args) << Name; 188 Success = false; 189 } else { 190 Opts.AnalysisConstraintsOpt = Value; 191 } 192 } 193 194 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 195 StringRef Name = A->getValue(); 196 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 197 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 198 .Case(CMDFLAG, PD_##NAME) 199 #include "clang/StaticAnalyzer/Core/Analyses.def" 200 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 201 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 202 Diags.Report(diag::err_drv_invalid_value) 203 << A->getAsString(Args) << Name; 204 Success = false; 205 } else { 206 Opts.AnalysisDiagOpt = Value; 207 } 208 } 209 210 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 211 StringRef Name = A->getValue(); 212 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 213 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 214 .Case(CMDFLAG, NAME) 215 #include "clang/StaticAnalyzer/Core/Analyses.def" 216 .Default(NumPurgeModes); 217 if (Value == NumPurgeModes) { 218 Diags.Report(diag::err_drv_invalid_value) 219 << A->getAsString(Args) << Name; 220 Success = false; 221 } else { 222 Opts.AnalysisPurgeOpt = Value; 223 } 224 } 225 226 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 227 StringRef Name = A->getValue(); 228 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 229 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 230 .Case(CMDFLAG, NAME) 231 #include "clang/StaticAnalyzer/Core/Analyses.def" 232 .Default(NumInliningModes); 233 if (Value == NumInliningModes) { 234 Diags.Report(diag::err_drv_invalid_value) 235 << A->getAsString(Args) << Name; 236 Success = false; 237 } else { 238 Opts.InliningMode = Value; 239 } 240 } 241 242 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 243 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 244 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 245 246 Opts.visualizeExplodedGraphWithGraphViz = 247 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 248 Opts.visualizeExplodedGraphWithUbiGraph = 249 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 250 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 251 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 252 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 253 Opts.AnalyzeNestedBlocks = 254 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 255 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 256 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 257 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 258 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 259 Opts.maxBlockVisitOnPath = 260 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 261 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 262 Opts.InlineMaxStackDepth = 263 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 264 Opts.InlineMaxStackDepth, Diags); 265 266 Opts.CheckersControlList.clear(); 267 for (const Arg *A : 268 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 269 A->claim(); 270 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 271 // We can have a list of comma separated checker names, e.g: 272 // '-analyzer-checker=cocoa,unix' 273 StringRef checkerList = A->getValue(); 274 SmallVector<StringRef, 4> checkers; 275 checkerList.split(checkers, ","); 276 for (StringRef checker : checkers) 277 Opts.CheckersControlList.emplace_back(checker, enable); 278 } 279 280 // Go through the analyzer configuration options. 281 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 282 A->claim(); 283 // We can have a list of comma separated config names, e.g: 284 // '-analyzer-config key1=val1,key2=val2' 285 StringRef configList = A->getValue(); 286 SmallVector<StringRef, 4> configVals; 287 configList.split(configVals, ","); 288 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 289 StringRef key, val; 290 std::tie(key, val) = configVals[i].split("="); 291 if (val.empty()) { 292 Diags.Report(SourceLocation(), 293 diag::err_analyzer_config_no_value) << configVals[i]; 294 Success = false; 295 break; 296 } 297 if (val.find('=') != StringRef::npos) { 298 Diags.Report(SourceLocation(), 299 diag::err_analyzer_config_multiple_values) 300 << configVals[i]; 301 Success = false; 302 break; 303 } 304 Opts.Config[key] = val; 305 } 306 } 307 308 return Success; 309 } 310 311 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 312 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 313 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 314 return true; 315 } 316 317 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 318 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 319 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 320 } 321 322 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 323 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 324 StringRef Value = A->getValue(); 325 if (Value == "small" || Value == "kernel" || Value == "medium" || 326 Value == "large") 327 return Value; 328 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 329 } 330 return "default"; 331 } 332 333 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 334 /// It returns a pointer to the newly generated Regex instance. 335 static std::shared_ptr<llvm::Regex> 336 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 337 Arg *RpassArg) { 338 StringRef Val = RpassArg->getValue(); 339 std::string RegexError; 340 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 341 if (!Pattern->isValid(RegexError)) { 342 Diags.Report(diag::err_drv_optimization_remark_pattern) 343 << RegexError << RpassArg->getAsString(Args); 344 Pattern.reset(); 345 } 346 return Pattern; 347 } 348 349 static bool parseDiagnosticLevelMask(StringRef FlagName, 350 const std::vector<std::string> &Levels, 351 DiagnosticsEngine *Diags, 352 DiagnosticLevelMask &M) { 353 bool Success = true; 354 for (const auto &Level : Levels) { 355 DiagnosticLevelMask const PM = 356 llvm::StringSwitch<DiagnosticLevelMask>(Level) 357 .Case("note", DiagnosticLevelMask::Note) 358 .Case("remark", DiagnosticLevelMask::Remark) 359 .Case("warning", DiagnosticLevelMask::Warning) 360 .Case("error", DiagnosticLevelMask::Error) 361 .Default(DiagnosticLevelMask::None); 362 if (PM == DiagnosticLevelMask::None) { 363 Success = false; 364 if (Diags) 365 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 366 } 367 M = M | PM; 368 } 369 return Success; 370 } 371 372 static void parseSanitizerKinds(StringRef FlagName, 373 const std::vector<std::string> &Sanitizers, 374 DiagnosticsEngine &Diags, SanitizerSet &S) { 375 for (const auto &Sanitizer : Sanitizers) { 376 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 377 if (K == 0) 378 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 379 else 380 S.set(K, true); 381 } 382 } 383 384 // Set the profile kind for fprofile-instrument. 385 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 386 DiagnosticsEngine &Diags) { 387 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 388 if (A == nullptr) 389 return; 390 StringRef S = A->getValue(); 391 unsigned I = llvm::StringSwitch<unsigned>(S) 392 .Case("none", CodeGenOptions::ProfileNone) 393 .Case("clang", CodeGenOptions::ProfileClangInstr) 394 .Case("llvm", CodeGenOptions::ProfileIRInstr) 395 .Default(~0U); 396 if (I == ~0U) { 397 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 398 << S; 399 return; 400 } 401 CodeGenOptions::ProfileInstrKind Instrumentor = 402 static_cast<CodeGenOptions::ProfileInstrKind>(I); 403 Opts.setProfileInstr(Instrumentor); 404 } 405 406 // Set the profile kind using fprofile-instrument-use-path. 407 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 408 const Twine &ProfileName) { 409 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 410 // In error, return silently and let Clang PGOUse report the error message. 411 if (auto E = ReaderOrErr.takeError()) { 412 llvm::consumeError(std::move(E)); 413 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 414 return; 415 } 416 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 417 std::move(ReaderOrErr.get()); 418 if (PGOReader->isIRLevelProfile()) 419 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 420 else 421 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 422 } 423 424 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 425 DiagnosticsEngine &Diags, 426 const TargetOptions &TargetOpts) { 427 using namespace options; 428 bool Success = true; 429 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 430 431 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 432 // TODO: This could be done in Driver 433 unsigned MaxOptLevel = 3; 434 if (OptimizationLevel > MaxOptLevel) { 435 // If the optimization level is not supported, fall back on the default 436 // optimization 437 Diags.Report(diag::warn_drv_optimization_value) 438 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 439 OptimizationLevel = MaxOptLevel; 440 } 441 Opts.OptimizationLevel = OptimizationLevel; 442 443 // At O0 we want to fully disable inlining outside of cases marked with 444 // 'alwaysinline' that are required for correctness. 445 Opts.setInlining((Opts.OptimizationLevel == 0) 446 ? CodeGenOptions::OnlyAlwaysInlining 447 : CodeGenOptions::NormalInlining); 448 // Explicit inlining flags can disable some or all inlining even at 449 // optimization levels above zero. 450 if (Arg *InlineArg = Args.getLastArg( 451 options::OPT_finline_functions, options::OPT_finline_hint_functions, 452 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 453 if (Opts.OptimizationLevel > 0) { 454 const Option &InlineOpt = InlineArg->getOption(); 455 if (InlineOpt.matches(options::OPT_finline_functions)) 456 Opts.setInlining(CodeGenOptions::NormalInlining); 457 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 458 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 459 else 460 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 461 } 462 } 463 464 Opts.ExperimentalNewPassManager = Args.hasFlag( 465 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 466 /* Default */ false); 467 468 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 469 StringRef Name = A->getValue(); 470 if (Name == "Accelerate") 471 Opts.setVecLib(CodeGenOptions::Accelerate); 472 else if (Name == "SVML") 473 Opts.setVecLib(CodeGenOptions::SVML); 474 else if (Name == "none") 475 Opts.setVecLib(CodeGenOptions::NoLibrary); 476 else 477 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 478 } 479 480 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 481 unsigned Val = 482 llvm::StringSwitch<unsigned>(A->getValue()) 483 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 484 .Case("limited", codegenoptions::LimitedDebugInfo) 485 .Case("standalone", codegenoptions::FullDebugInfo) 486 .Default(~0U); 487 if (Val == ~0U) 488 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 489 << A->getValue(); 490 else 491 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 492 } 493 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 494 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 495 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 496 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 497 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 498 .Default(~0U); 499 if (Val == ~0U) 500 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 501 << A->getValue(); 502 else 503 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 504 } 505 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 506 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 507 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 508 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 509 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 510 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 511 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 512 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 513 Opts.DebugExplicitImport = Triple.isPS4CPU(); 514 515 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 516 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 517 518 if (const Arg *A = 519 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 520 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 521 522 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 523 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 524 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 525 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 526 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 527 OPT_fuse_register_sized_bitfield_access); 528 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 529 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 530 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 531 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 532 Opts.NoCommon = Args.hasArg(OPT_fno_common); 533 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 534 Opts.OptimizeSize = getOptimizationLevelSize(Args); 535 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 536 Args.hasArg(OPT_ffreestanding)); 537 if (Opts.SimplifyLibCalls) 538 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 539 Opts.UnrollLoops = 540 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 541 (Opts.OptimizationLevel > 1)); 542 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 543 544 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 545 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 546 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 547 Opts.DebugInfoForProfiling = Args.hasFlag( 548 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 549 550 setPGOInstrumentor(Opts, Args, Diags); 551 Opts.InstrProfileOutput = 552 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 553 Opts.ProfileInstrumentUsePath = 554 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 555 if (!Opts.ProfileInstrumentUsePath.empty()) 556 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 557 558 Opts.CoverageMapping = 559 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 560 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 561 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 562 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 563 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 564 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 565 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 566 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 567 Opts.CodeModel = getCodeModel(Args, Diags); 568 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 569 Opts.DisableFPElim = 570 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 571 Opts.DisableFree = Args.hasArg(OPT_disable_free); 572 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 573 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 574 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 575 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 576 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 577 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 578 Args.hasArg(OPT_cl_finite_math_only) || 579 Args.hasArg(OPT_cl_fast_relaxed_math)); 580 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 581 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 582 Args.hasArg(OPT_cl_finite_math_only) || 583 Args.hasArg(OPT_cl_fast_relaxed_math)); 584 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 585 Args.hasArg(OPT_cl_no_signed_zeros)); 586 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 587 Opts.CorrectlyRoundedDivSqrt = 588 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 589 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 590 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 591 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 592 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 593 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 594 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 595 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 596 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 597 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 598 Opts.IncrementalLinkerCompatible = 599 Args.hasArg(OPT_mincremental_linker_compatible); 600 Opts.PIECopyRelocations = 601 Args.hasArg(OPT_mpie_copy_relocations); 602 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 603 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 604 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 605 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 606 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 607 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 608 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 609 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 610 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 611 Args.hasArg(OPT_cl_fast_relaxed_math); 612 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 613 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 614 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 615 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 616 Diags.Report(diag::err_drv_invalid_value) 617 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 618 << Opts.ThreadModel; 619 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 620 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 621 622 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 623 OPT_fno_function_sections, false); 624 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 625 OPT_fno_data_sections, false); 626 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 627 OPT_fno_unique_section_names, true); 628 629 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 630 631 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 632 633 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 634 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ); 635 Opts.EmitSummaryIndex = A && A->containsValue("thin"); 636 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 637 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 638 if (IK != IK_LLVM_IR) 639 Diags.Report(diag::err_drv_argument_only_allowed_with) 640 << A->getAsString(Args) << "-x ir"; 641 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 642 } 643 644 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 645 646 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 647 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 648 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 649 650 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 651 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 652 653 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 654 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 655 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 656 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 657 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 658 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 659 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 660 Opts.CoverageNoFunctionNamesInData = 661 Args.hasArg(OPT_coverage_no_function_names_in_data); 662 Opts.CoverageExitBlockBeforeBody = 663 Args.hasArg(OPT_coverage_exit_block_before_body); 664 if (Args.hasArg(OPT_coverage_version_EQ)) { 665 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 666 if (CoverageVersion.size() != 4) { 667 Diags.Report(diag::err_drv_invalid_value) 668 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 669 << CoverageVersion; 670 } else { 671 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 672 } 673 } 674 } 675 // Handle -fembed-bitcode option. 676 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 677 StringRef Name = A->getValue(); 678 unsigned Model = llvm::StringSwitch<unsigned>(Name) 679 .Case("off", CodeGenOptions::Embed_Off) 680 .Case("all", CodeGenOptions::Embed_All) 681 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 682 .Case("marker", CodeGenOptions::Embed_Marker) 683 .Default(~0U); 684 if (Model == ~0U) { 685 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 686 Success = false; 687 } else 688 Opts.setEmbedBitcode( 689 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 690 } 691 // FIXME: For backend options that are not yet recorded as function 692 // attributes in the IR, keep track of them so we can embed them in a 693 // separate data section and use them when building the bitcode. 694 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 695 for (const auto &A : Args) { 696 // Do not encode output and input. 697 if (A->getOption().getID() == options::OPT_o || 698 A->getOption().getID() == options::OPT_INPUT || 699 A->getOption().getID() == options::OPT_x || 700 A->getOption().getID() == options::OPT_fembed_bitcode || 701 (A->getOption().getGroup().isValid() && 702 A->getOption().getGroup().getID() == options::OPT_W_Group)) 703 continue; 704 ArgStringList ASL; 705 A->render(Args, ASL); 706 for (const auto &arg : ASL) { 707 StringRef ArgStr(arg); 708 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 709 // using \00 to seperate each commandline options. 710 Opts.CmdArgs.push_back('\0'); 711 } 712 } 713 } 714 715 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 716 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 717 Opts.XRayInstructionThreshold = 718 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_, 200, Diags); 719 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 720 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 721 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 722 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 723 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 724 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 725 unsigned LinkFlags = llvm::Linker::Flags::None; 726 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) 727 LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded | 728 llvm::Linker::Flags::InternalizeLinkedSymbols; 729 Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue())); 730 } 731 Opts.SanitizeCoverageType = 732 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 733 Opts.SanitizeCoverageIndirectCalls = 734 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 735 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 736 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 737 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 738 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 739 Opts.SanitizeCoverage8bitCounters = 740 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 741 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 742 Opts.SanitizeCoverageTracePCGuard = 743 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 744 Opts.SanitizeMemoryTrackOrigins = 745 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 746 Opts.SanitizeMemoryUseAfterDtor = 747 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 748 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 749 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 750 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 751 OPT_fno_sanitize_address_use_after_scope)) { 752 Opts.SanitizeAddressUseAfterScope = 753 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 754 } 755 Opts.SSPBufferSize = 756 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 757 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 758 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 759 StringRef Val = A->getValue(); 760 unsigned StackAlignment = Opts.StackAlignment; 761 Val.getAsInteger(10, StackAlignment); 762 Opts.StackAlignment = StackAlignment; 763 } 764 765 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 766 StringRef Val = A->getValue(); 767 unsigned StackProbeSize = Opts.StackProbeSize; 768 Val.getAsInteger(0, StackProbeSize); 769 Opts.StackProbeSize = StackProbeSize; 770 } 771 772 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 773 StringRef Name = A->getValue(); 774 unsigned Method = llvm::StringSwitch<unsigned>(Name) 775 .Case("legacy", CodeGenOptions::Legacy) 776 .Case("non-legacy", CodeGenOptions::NonLegacy) 777 .Case("mixed", CodeGenOptions::Mixed) 778 .Default(~0U); 779 if (Method == ~0U) { 780 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 781 Success = false; 782 } else { 783 Opts.setObjCDispatchMethod( 784 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 785 } 786 } 787 788 Opts.EmulatedTLS = 789 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 790 791 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 792 StringRef Name = A->getValue(); 793 unsigned Model = llvm::StringSwitch<unsigned>(Name) 794 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 795 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 796 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 797 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 798 .Default(~0U); 799 if (Model == ~0U) { 800 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 801 Success = false; 802 } else { 803 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 804 } 805 } 806 807 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 808 StringRef Val = A->getValue(); 809 if (Val == "fast") 810 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 811 else if (Val == "on") 812 Opts.setFPContractMode(CodeGenOptions::FPC_On); 813 else if (Val == "off") 814 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 815 else 816 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 817 } 818 819 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 820 StringRef Val = A->getValue(); 821 if (Val == "ieee") 822 Opts.FPDenormalMode = "ieee"; 823 else if (Val == "preserve-sign") 824 Opts.FPDenormalMode = "preserve-sign"; 825 else if (Val == "positive-zero") 826 Opts.FPDenormalMode = "positive-zero"; 827 else 828 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 829 } 830 831 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 832 if (A->getOption().matches(OPT_fpcc_struct_return)) { 833 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 834 } else { 835 assert(A->getOption().matches(OPT_freg_struct_return)); 836 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 837 } 838 } 839 840 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 841 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 842 bool NeedLocTracking = false; 843 844 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 845 if (!Opts.OptRecordFile.empty()) 846 NeedLocTracking = true; 847 848 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 849 Opts.OptimizationRemarkPattern = 850 GenerateOptimizationRemarkRegex(Diags, Args, A); 851 NeedLocTracking = true; 852 } 853 854 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 855 Opts.OptimizationRemarkMissedPattern = 856 GenerateOptimizationRemarkRegex(Diags, Args, A); 857 NeedLocTracking = true; 858 } 859 860 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 861 Opts.OptimizationRemarkAnalysisPattern = 862 GenerateOptimizationRemarkRegex(Diags, Args, A); 863 NeedLocTracking = true; 864 } 865 866 Opts.DiagnosticsWithHotness = 867 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 868 if (Opts.DiagnosticsWithHotness && 869 Opts.getProfileUse() == CodeGenOptions::ProfileNone) 870 Diags.Report(diag::warn_drv_fdiagnostics_show_hotness_requires_pgo); 871 872 // If the user requested to use a sample profile for PGO, then the 873 // backend will need to track source location information so the profile 874 // can be incorporated into the IR. 875 if (!Opts.SampleProfileFile.empty()) 876 NeedLocTracking = true; 877 878 // If the user requested a flag that requires source locations available in 879 // the backend, make sure that the backend tracks source location information. 880 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 881 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 882 883 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 884 885 // Parse -fsanitize-recover= arguments. 886 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 887 parseSanitizerKinds("-fsanitize-recover=", 888 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 889 Opts.SanitizeRecover); 890 parseSanitizerKinds("-fsanitize-trap=", 891 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 892 Opts.SanitizeTrap); 893 894 Opts.CudaGpuBinaryFileNames = 895 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 896 897 Opts.Backchain = Args.hasArg(OPT_mbackchain); 898 899 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 900 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 901 902 return Success; 903 } 904 905 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 906 ArgList &Args) { 907 using namespace options; 908 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 909 Opts.Targets = Args.getAllArgValues(OPT_MT); 910 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 911 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 912 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 913 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 914 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 915 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 916 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 917 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 918 Opts.ModuleDependencyOutputDir = 919 Args.getLastArgValue(OPT_module_dependency_dir); 920 if (Args.hasArg(OPT_MV)) 921 Opts.OutputFormat = DependencyOutputFormat::NMake; 922 // Add sanitizer blacklists as extra dependencies. 923 // They won't be discovered by the regular preprocessor, so 924 // we let make / ninja to know about this implicit dependency. 925 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 926 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 927 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 928 ModuleFiles.end()); 929 } 930 931 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 932 // Color diagnostics default to auto ("on" if terminal supports) in the driver 933 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 934 // Support both clang's -f[no-]color-diagnostics and gcc's 935 // -f[no-]diagnostics-colors[=never|always|auto]. 936 enum { 937 Colors_On, 938 Colors_Off, 939 Colors_Auto 940 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 941 for (Arg *A : Args) { 942 const Option &O = A->getOption(); 943 if (O.matches(options::OPT_fcolor_diagnostics) || 944 O.matches(options::OPT_fdiagnostics_color)) { 945 ShowColors = Colors_On; 946 } else if (O.matches(options::OPT_fno_color_diagnostics) || 947 O.matches(options::OPT_fno_diagnostics_color)) { 948 ShowColors = Colors_Off; 949 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 950 StringRef Value(A->getValue()); 951 if (Value == "always") 952 ShowColors = Colors_On; 953 else if (Value == "never") 954 ShowColors = Colors_Off; 955 else if (Value == "auto") 956 ShowColors = Colors_Auto; 957 } 958 } 959 return ShowColors == Colors_On || 960 (ShowColors == Colors_Auto && 961 llvm::sys::Process::StandardErrHasColors()); 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 std::make_shared<TestModuleFileExtension>( 1221 BlockName, MajorVersion, MinorVersion, 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 // The PS4 uses C99 as the default C standard. 1572 if (T.isPS4()) 1573 LangStd = LangStandard::lang_gnu99; 1574 else 1575 LangStd = LangStandard::lang_gnu11; 1576 break; 1577 case IK_ObjC: 1578 case IK_PreprocessedObjC: 1579 LangStd = LangStandard::lang_gnu11; 1580 break; 1581 case IK_CXX: 1582 case IK_PreprocessedCXX: 1583 case IK_ObjCXX: 1584 case IK_PreprocessedObjCXX: 1585 LangStd = LangStandard::lang_gnucxx98; 1586 break; 1587 case IK_RenderScript: 1588 LangStd = LangStandard::lang_c99; 1589 break; 1590 } 1591 } 1592 1593 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1594 Opts.LineComment = Std.hasLineComments(); 1595 Opts.C99 = Std.isC99(); 1596 Opts.C11 = Std.isC11(); 1597 Opts.CPlusPlus = Std.isCPlusPlus(); 1598 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1599 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1600 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1601 Opts.Digraphs = Std.hasDigraphs(); 1602 Opts.GNUMode = Std.isGNUMode(); 1603 Opts.GNUInline = Std.isC89(); 1604 Opts.HexFloats = Std.hasHexFloats(); 1605 Opts.ImplicitInt = Std.hasImplicitInt(); 1606 1607 // Set OpenCL Version. 1608 Opts.OpenCL = isOpenCL(LangStd) || IK == IK_OpenCL; 1609 if (LangStd == LangStandard::lang_opencl) 1610 Opts.OpenCLVersion = 100; 1611 else if (LangStd == LangStandard::lang_opencl11) 1612 Opts.OpenCLVersion = 110; 1613 else if (LangStd == LangStandard::lang_opencl12) 1614 Opts.OpenCLVersion = 120; 1615 else if (LangStd == LangStandard::lang_opencl20) 1616 Opts.OpenCLVersion = 200; 1617 1618 // OpenCL has some additional defaults. 1619 if (Opts.OpenCL) { 1620 Opts.AltiVec = 0; 1621 Opts.ZVector = 0; 1622 Opts.CXXOperatorNames = 1; 1623 Opts.LaxVectorConversions = 0; 1624 Opts.DefaultFPContract = 1; 1625 Opts.NativeHalfType = 1; 1626 Opts.NativeHalfArgsAndReturns = 1; 1627 // Include default header file for OpenCL. 1628 if (Opts.IncludeDefaultHeader) { 1629 PPOpts.Includes.push_back("opencl-c.h"); 1630 } 1631 } 1632 1633 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || 1634 LangStd == LangStandard::lang_cuda; 1635 1636 Opts.RenderScript = IK == IK_RenderScript; 1637 if (Opts.RenderScript) { 1638 Opts.NativeHalfType = 1; 1639 Opts.NativeHalfArgsAndReturns = 1; 1640 } 1641 1642 // OpenCL and C++ both have bool, true, false keywords. 1643 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1644 1645 // OpenCL has half keyword 1646 Opts.Half = Opts.OpenCL; 1647 1648 // C++ has wchar_t keyword. 1649 Opts.WChar = Opts.CPlusPlus; 1650 1651 Opts.GNUKeywords = Opts.GNUMode; 1652 Opts.CXXOperatorNames = Opts.CPlusPlus; 1653 1654 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1655 1656 Opts.DollarIdents = !Opts.AsmPreprocessor; 1657 } 1658 1659 /// Attempt to parse a visibility value out of the given argument. 1660 static Visibility parseVisibility(Arg *arg, ArgList &args, 1661 DiagnosticsEngine &diags) { 1662 StringRef value = arg->getValue(); 1663 if (value == "default") { 1664 return DefaultVisibility; 1665 } else if (value == "hidden" || value == "internal") { 1666 return HiddenVisibility; 1667 } else if (value == "protected") { 1668 // FIXME: diagnose if target does not support protected visibility 1669 return ProtectedVisibility; 1670 } 1671 1672 diags.Report(diag::err_drv_invalid_value) 1673 << arg->getAsString(args) << value; 1674 return DefaultVisibility; 1675 } 1676 1677 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1678 const TargetOptions &TargetOpts, 1679 PreprocessorOptions &PPOpts, 1680 DiagnosticsEngine &Diags) { 1681 // FIXME: Cleanup per-file based stuff. 1682 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1683 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1684 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1685 #define LANGSTANDARD(id, name, desc, features) \ 1686 .Case(name, LangStandard::lang_##id) 1687 #define LANGSTANDARD_ALIAS(id, alias) \ 1688 .Case(alias, LangStandard::lang_##id) 1689 #include "clang/Frontend/LangStandards.def" 1690 .Default(LangStandard::lang_unspecified); 1691 if (LangStd == LangStandard::lang_unspecified) 1692 Diags.Report(diag::err_drv_invalid_value) 1693 << A->getAsString(Args) << A->getValue(); 1694 else { 1695 // Valid standard, check to make sure language and standard are 1696 // compatible. 1697 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1698 switch (IK) { 1699 case IK_C: 1700 case IK_ObjC: 1701 case IK_PreprocessedC: 1702 case IK_PreprocessedObjC: 1703 if (!(Std.isC89() || Std.isC99())) 1704 Diags.Report(diag::err_drv_argument_not_allowed_with) 1705 << A->getAsString(Args) << "C/ObjC"; 1706 break; 1707 case IK_CXX: 1708 case IK_ObjCXX: 1709 case IK_PreprocessedCXX: 1710 case IK_PreprocessedObjCXX: 1711 if (!Std.isCPlusPlus()) 1712 Diags.Report(diag::err_drv_argument_not_allowed_with) 1713 << A->getAsString(Args) << "C++/ObjC++"; 1714 break; 1715 case IK_OpenCL: 1716 if (!isOpenCL(LangStd)) 1717 Diags.Report(diag::err_drv_argument_not_allowed_with) 1718 << A->getAsString(Args) << "OpenCL"; 1719 break; 1720 case IK_CUDA: 1721 case IK_PreprocessedCuda: 1722 if (!Std.isCPlusPlus()) 1723 Diags.Report(diag::err_drv_argument_not_allowed_with) 1724 << A->getAsString(Args) << "CUDA"; 1725 break; 1726 default: 1727 break; 1728 } 1729 } 1730 } 1731 1732 // -cl-std only applies for OpenCL language standards. 1733 // Override the -std option in this case. 1734 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1735 LangStandard::Kind OpenCLLangStd 1736 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1737 .Cases("cl", "CL", LangStandard::lang_opencl) 1738 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1739 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1740 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1741 .Default(LangStandard::lang_unspecified); 1742 1743 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1744 Diags.Report(diag::err_drv_invalid_value) 1745 << A->getAsString(Args) << A->getValue(); 1746 } 1747 else 1748 LangStd = OpenCLLangStd; 1749 } 1750 1751 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1752 1753 llvm::Triple T(TargetOpts.Triple); 1754 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1755 1756 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1757 // This option should be deprecated for CL > 1.0 because 1758 // this option was added for compatibility with OpenCL 1.0. 1759 if (Args.getLastArg(OPT_cl_strict_aliasing) 1760 && Opts.OpenCLVersion > 100) { 1761 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1762 std::string(".") + 1763 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1764 Diags.Report(diag::warn_option_invalid_ocl_version) 1765 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1766 } 1767 1768 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1769 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1770 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1771 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1772 // name, as it doesn't seem a useful distinction. 1773 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1774 Opts.GNUKeywords); 1775 1776 if (Args.hasArg(OPT_fno_operator_names)) 1777 Opts.CXXOperatorNames = 0; 1778 1779 if (Args.hasArg(OPT_fcuda_is_device)) 1780 Opts.CUDAIsDevice = 1; 1781 1782 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1783 Opts.CUDAAllowVariadicFunctions = 1; 1784 1785 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1786 Opts.CUDAHostDeviceConstexpr = 0; 1787 1788 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1789 Opts.CUDADeviceFlushDenormalsToZero = 1; 1790 1791 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1792 Opts.CUDADeviceApproxTranscendentals = 1; 1793 1794 if (Opts.ObjC1) { 1795 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1796 StringRef value = arg->getValue(); 1797 if (Opts.ObjCRuntime.tryParse(value)) 1798 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1799 } 1800 1801 if (Args.hasArg(OPT_fobjc_gc_only)) 1802 Opts.setGC(LangOptions::GCOnly); 1803 else if (Args.hasArg(OPT_fobjc_gc)) 1804 Opts.setGC(LangOptions::HybridGC); 1805 else if (Args.hasArg(OPT_fobjc_arc)) { 1806 Opts.ObjCAutoRefCount = 1; 1807 if (!Opts.ObjCRuntime.allowsARC()) 1808 Diags.Report(diag::err_arc_unsupported_on_runtime); 1809 } 1810 1811 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 1812 // whether the feature is actually enabled. This is predominantly 1813 // determined by -fobjc-runtime, but we allow it to be overridden 1814 // from the command line for testing purposes. 1815 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1816 Opts.ObjCWeakRuntime = 1; 1817 else 1818 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 1819 1820 // ObjCWeak determines whether __weak is actually enabled. 1821 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 1822 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 1823 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 1824 assert(!Opts.ObjCWeak); 1825 } else if (Opts.getGC() != LangOptions::NonGC) { 1826 Diags.Report(diag::err_objc_weak_with_gc); 1827 } else if (!Opts.ObjCWeakRuntime) { 1828 Diags.Report(diag::err_objc_weak_unsupported); 1829 } else { 1830 Opts.ObjCWeak = 1; 1831 } 1832 } else if (Opts.ObjCAutoRefCount) { 1833 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 1834 } 1835 1836 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1837 Opts.ObjCInferRelatedResultType = 0; 1838 1839 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1840 Opts.ObjCSubscriptingLegacyRuntime = 1841 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1842 } 1843 1844 if (Args.hasArg(OPT_fgnu89_inline)) { 1845 if (Opts.CPlusPlus) 1846 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline" 1847 << "C++/ObjC++"; 1848 else 1849 Opts.GNUInline = 1; 1850 } 1851 1852 if (Args.hasArg(OPT_fapple_kext)) { 1853 if (!Opts.CPlusPlus) 1854 Diags.Report(diag::warn_c_kext); 1855 else 1856 Opts.AppleKext = 1; 1857 } 1858 1859 if (Args.hasArg(OPT_print_ivar_layout)) 1860 Opts.ObjCGCBitmapPrint = 1; 1861 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1862 Opts.NoConstantCFStrings = 1; 1863 1864 if (Args.hasArg(OPT_faltivec)) 1865 Opts.AltiVec = 1; 1866 1867 if (Args.hasArg(OPT_fzvector)) 1868 Opts.ZVector = 1; 1869 1870 if (Args.hasArg(OPT_pthread)) 1871 Opts.POSIXThreads = 1; 1872 1873 // The value-visibility mode defaults to "default". 1874 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1875 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1876 } else { 1877 Opts.setValueVisibilityMode(DefaultVisibility); 1878 } 1879 1880 // The type-visibility mode defaults to the value-visibility mode. 1881 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1882 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1883 } else { 1884 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1885 } 1886 1887 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1888 Opts.InlineVisibilityHidden = 1; 1889 1890 if (Args.hasArg(OPT_ftrapv)) { 1891 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1892 // Set the handler, if one is specified. 1893 Opts.OverflowHandler = 1894 Args.getLastArgValue(OPT_ftrapv_handler); 1895 } 1896 else if (Args.hasArg(OPT_fwrapv)) 1897 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1898 1899 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1900 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1901 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1902 Opts.MSCompatibilityVersion = 0; 1903 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1904 VersionTuple VT; 1905 if (VT.tryParse(A->getValue())) 1906 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1907 << A->getValue(); 1908 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1909 VT.getMinor().getValueOr(0) * 100000 + 1910 VT.getSubminor().getValueOr(0); 1911 } 1912 1913 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1914 // is specified, or -std is set to a conforming mode. 1915 // Trigraphs are disabled by default in c++1z onwards. 1916 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1917 Opts.Trigraphs = 1918 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1919 1920 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1921 OPT_fno_dollars_in_identifiers, 1922 Opts.DollarIdents); 1923 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1924 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1925 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1926 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1927 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1928 Opts.ConstStrings); 1929 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1930 Opts.LaxVectorConversions = 0; 1931 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1932 Opts.ThreadsafeStatics = 0; 1933 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1934 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1935 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1936 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1937 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 1938 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1939 1940 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 1941 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1942 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 1943 && Opts.OpenCLVersion >= 200); 1944 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1945 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 1946 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 1947 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 1948 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1949 Opts.ModulesDeclUse = 1950 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1951 Opts.ModulesLocalVisibility = 1952 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 1953 Opts.ModulesSearchAll = Opts.Modules && 1954 !Args.hasArg(OPT_fno_modules_search_all) && 1955 Args.hasArg(OPT_fmodules_search_all); 1956 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1957 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 1958 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1959 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1960 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1961 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1962 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1963 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1964 if (!Opts.NoBuiltin) 1965 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 1966 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1967 Opts.RelaxedTemplateTemplateArgs = 1968 Args.hasArg(OPT_frelaxed_template_template_args); 1969 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 1970 Opts.AlignedAllocation = 1971 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 1972 Opts.AlignedAllocation); 1973 Opts.NewAlignOverride = 1974 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 1975 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 1976 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 1977 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 1978 << A->getValue(); 1979 Opts.NewAlignOverride = 0; 1980 } 1981 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 1982 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1983 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1984 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1985 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1986 Opts.InstantiationDepth = 1987 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 1988 Opts.ArrowDepth = 1989 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1990 Opts.ConstexprCallDepth = 1991 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1992 Opts.ConstexprStepLimit = 1993 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1994 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1995 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1996 Opts.NumLargeByValueCopy = 1997 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1998 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1999 Opts.ObjCConstantStringClass = 2000 Args.getLastArgValue(OPT_fconstant_string_class); 2001 Opts.ObjCDefaultSynthProperties = 2002 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2003 Opts.EncodeExtendedBlockSig = 2004 Args.hasArg(OPT_fencode_extended_block_signature); 2005 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2006 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2007 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2008 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2009 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2010 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2011 Opts.Static = Args.hasArg(OPT_static_define); 2012 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2013 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2014 || Args.hasArg(OPT_fdump_record_layouts); 2015 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2016 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2017 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2018 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2019 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2020 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2021 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2022 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2023 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2024 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2025 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2026 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2027 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2028 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2029 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2030 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2031 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2032 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2033 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2034 // is enabled. 2035 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2036 | Opts.NativeHalfArgsAndReturns; 2037 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2038 2039 // __declspec is enabled by default for the PS4 by the driver, and also 2040 // enabled for Microsoft Extensions or Borland Extensions, here. 2041 // 2042 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2043 // CUDA extension. However, it is required for supporting 2044 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2045 // been rewritten in terms of something more generic, remove the Opts.CUDA 2046 // term here. 2047 Opts.DeclSpecKeyword = 2048 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2049 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2050 2051 // For now, we only support local submodule visibility in C++ (because we 2052 // heavily depend on the ODR for merging redefinitions). 2053 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) 2054 Diags.Report(diag::err_drv_argument_not_allowed_with) 2055 << "-fmodules-local-submodule-visibility" << "C"; 2056 2057 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2058 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2059 .Case("target", LangOptions::ASMM_Target) 2060 .Case("no", LangOptions::ASMM_Off) 2061 .Case("yes", LangOptions::ASMM_On) 2062 .Default(255)) { 2063 default: 2064 Diags.Report(diag::err_drv_invalid_value) 2065 << "-faddress-space-map-mangling=" << A->getValue(); 2066 break; 2067 case LangOptions::ASMM_Target: 2068 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2069 break; 2070 case LangOptions::ASMM_On: 2071 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2072 break; 2073 case LangOptions::ASMM_Off: 2074 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2075 break; 2076 } 2077 } 2078 2079 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2080 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2081 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2082 A->getValue()) 2083 .Case("single", 2084 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2085 .Case("multiple", 2086 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2087 .Case("virtual", 2088 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2089 .Default(LangOptions::PPTMK_BestCase); 2090 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2091 Diags.Report(diag::err_drv_invalid_value) 2092 << "-fms-memptr-rep=" << A->getValue(); 2093 2094 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2095 } 2096 2097 // Check for MS default calling conventions being specified. 2098 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2099 LangOptions::DefaultCallingConvention DefaultCC = 2100 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2101 A->getValue()) 2102 .Case("cdecl", LangOptions::DCC_CDecl) 2103 .Case("fastcall", LangOptions::DCC_FastCall) 2104 .Case("stdcall", LangOptions::DCC_StdCall) 2105 .Case("vectorcall", LangOptions::DCC_VectorCall) 2106 .Default(LangOptions::DCC_None); 2107 if (DefaultCC == LangOptions::DCC_None) 2108 Diags.Report(diag::err_drv_invalid_value) 2109 << "-fdefault-calling-conv=" << A->getValue(); 2110 2111 llvm::Triple T(TargetOpts.Triple); 2112 llvm::Triple::ArchType Arch = T.getArch(); 2113 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2114 DefaultCC == LangOptions::DCC_StdCall) && 2115 Arch != llvm::Triple::x86; 2116 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2117 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2118 if (emitError) 2119 Diags.Report(diag::err_drv_argument_not_allowed_with) 2120 << A->getSpelling() << T.getTriple(); 2121 else 2122 Opts.setDefaultCallingConv(DefaultCC); 2123 } 2124 2125 // -mrtd option 2126 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2127 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2128 Diags.Report(diag::err_drv_argument_not_allowed_with) 2129 << A->getSpelling() << "-fdefault-calling-conv"; 2130 else { 2131 llvm::Triple T(TargetOpts.Triple); 2132 if (T.getArch() != llvm::Triple::x86) 2133 Diags.Report(diag::err_drv_argument_not_allowed_with) 2134 << A->getSpelling() << T.getTriple(); 2135 else 2136 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2137 } 2138 } 2139 2140 // Check if -fopenmp is specified. 2141 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2142 Opts.OpenMPUseTLS = 2143 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2144 Opts.OpenMPIsDevice = 2145 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2146 2147 if (Opts.OpenMP) { 2148 int Version = 2149 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2150 if (Version != 0) 2151 Opts.OpenMP = Version; 2152 // Provide diagnostic when a given target is not expected to be an OpenMP 2153 // device or host. 2154 if (!Opts.OpenMPIsDevice) { 2155 switch (T.getArch()) { 2156 default: 2157 break; 2158 // Add unsupported host targets here: 2159 case llvm::Triple::nvptx: 2160 case llvm::Triple::nvptx64: 2161 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2162 << TargetOpts.Triple; 2163 break; 2164 } 2165 } 2166 } 2167 2168 // Get the OpenMP target triples if any. 2169 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2170 2171 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2172 llvm::Triple TT(A->getValue(i)); 2173 2174 if (TT.getArch() == llvm::Triple::UnknownArch) 2175 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2176 else 2177 Opts.OMPTargetTriples.push_back(TT); 2178 } 2179 } 2180 2181 // Get OpenMP host file path if any and report if a non existent file is 2182 // found 2183 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2184 Opts.OMPHostIRFile = A->getValue(); 2185 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2186 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2187 << Opts.OMPHostIRFile; 2188 } 2189 2190 // Record whether the __DEPRECATED define was requested. 2191 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2192 OPT_fno_deprecated_macro, 2193 Opts.Deprecated); 2194 2195 // FIXME: Eliminate this dependency. 2196 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2197 OptSize = getOptimizationLevelSize(Args); 2198 Opts.Optimize = Opt != 0; 2199 Opts.OptimizeSize = OptSize != 0; 2200 2201 // This is the __NO_INLINE__ define, which just depends on things like the 2202 // optimization level and -fno-inline, not actually whether the backend has 2203 // inlining enabled. 2204 Opts.NoInlineDefine = !Opts.Optimize; 2205 if (Arg *InlineArg = Args.getLastArg( 2206 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2207 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2208 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2209 Opts.NoInlineDefine = true; 2210 2211 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2212 Args.hasArg(OPT_cl_fast_relaxed_math); 2213 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2214 Args.hasArg(OPT_cl_finite_math_only) || 2215 Args.hasArg(OPT_cl_fast_relaxed_math); 2216 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2217 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2218 Args.hasArg(OPT_cl_fast_relaxed_math); 2219 2220 Opts.RetainCommentsFromSystemHeaders = 2221 Args.hasArg(OPT_fretain_comments_from_system_headers); 2222 2223 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2224 switch (SSP) { 2225 default: 2226 Diags.Report(diag::err_drv_invalid_value) 2227 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2228 break; 2229 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2230 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2231 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2232 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2233 } 2234 2235 // Parse -fsanitize= arguments. 2236 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2237 Diags, Opts.Sanitize); 2238 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2239 Opts.SanitizeAddressFieldPadding = 2240 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2241 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2242 } 2243 2244 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2245 FileManager &FileMgr, 2246 DiagnosticsEngine &Diags) { 2247 using namespace options; 2248 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2249 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2250 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2251 Opts.TokenCache = A->getValue(); 2252 else 2253 Opts.TokenCache = Opts.ImplicitPTHInclude; 2254 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2255 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2256 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2257 2258 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2259 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2260 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2261 2262 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2263 StringRef Value(A->getValue()); 2264 size_t Comma = Value.find(','); 2265 unsigned Bytes = 0; 2266 unsigned EndOfLine = 0; 2267 2268 if (Comma == StringRef::npos || 2269 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2270 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2271 Diags.Report(diag::err_drv_preamble_format); 2272 else { 2273 Opts.PrecompiledPreambleBytes.first = Bytes; 2274 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2275 } 2276 } 2277 2278 // Add macros from the command line. 2279 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2280 if (A->getOption().matches(OPT_D)) 2281 Opts.addMacroDef(A->getValue()); 2282 else 2283 Opts.addMacroUndef(A->getValue()); 2284 } 2285 2286 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2287 2288 // Add the ordered list of -includes. 2289 for (const Arg *A : Args.filtered(OPT_include)) 2290 Opts.Includes.emplace_back(A->getValue()); 2291 2292 for (const Arg *A : Args.filtered(OPT_chain_include)) 2293 Opts.ChainedIncludes.emplace_back(A->getValue()); 2294 2295 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2296 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2297 2298 if (Split.second.empty()) { 2299 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2300 continue; 2301 } 2302 2303 Opts.addRemappedFile(Split.first, Split.second); 2304 } 2305 2306 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2307 StringRef Name = A->getValue(); 2308 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2309 .Case("libc++", ARCXX_libcxx) 2310 .Case("libstdc++", ARCXX_libstdcxx) 2311 .Case("none", ARCXX_nolib) 2312 .Default(~0U); 2313 if (Library == ~0U) 2314 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2315 else 2316 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2317 } 2318 } 2319 2320 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2321 ArgList &Args, 2322 frontend::ActionKind Action) { 2323 using namespace options; 2324 2325 switch (Action) { 2326 case frontend::ASTDeclList: 2327 case frontend::ASTDump: 2328 case frontend::ASTPrint: 2329 case frontend::ASTView: 2330 case frontend::EmitAssembly: 2331 case frontend::EmitBC: 2332 case frontend::EmitHTML: 2333 case frontend::EmitLLVM: 2334 case frontend::EmitLLVMOnly: 2335 case frontend::EmitCodeGenOnly: 2336 case frontend::EmitObj: 2337 case frontend::FixIt: 2338 case frontend::GenerateModule: 2339 case frontend::GenerateModuleInterface: 2340 case frontend::GeneratePCH: 2341 case frontend::GeneratePTH: 2342 case frontend::ParseSyntaxOnly: 2343 case frontend::ModuleFileInfo: 2344 case frontend::VerifyPCH: 2345 case frontend::PluginAction: 2346 case frontend::PrintDeclContext: 2347 case frontend::RewriteObjC: 2348 case frontend::RewriteTest: 2349 case frontend::RunAnalysis: 2350 case frontend::MigrateSource: 2351 Opts.ShowCPP = 0; 2352 break; 2353 2354 case frontend::DumpRawTokens: 2355 case frontend::DumpTokens: 2356 case frontend::InitOnly: 2357 case frontend::PrintPreamble: 2358 case frontend::PrintPreprocessedInput: 2359 case frontend::RewriteMacros: 2360 case frontend::RunPreprocessorOnly: 2361 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2362 break; 2363 } 2364 2365 Opts.ShowComments = Args.hasArg(OPT_C); 2366 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2367 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2368 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2369 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2370 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2371 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2372 } 2373 2374 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2375 DiagnosticsEngine &Diags) { 2376 using namespace options; 2377 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2378 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2379 StringRef Value = A->getValue(); 2380 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2381 .Case("default", llvm::EABI::Default) 2382 .Case("4", llvm::EABI::EABI4) 2383 .Case("5", llvm::EABI::EABI5) 2384 .Case("gnu", llvm::EABI::GNU) 2385 .Default(llvm::EABI::Unknown); 2386 if (EABIVersion == llvm::EABI::Unknown) 2387 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2388 << Value; 2389 else 2390 Opts.EABIVersion = Value; 2391 } 2392 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2393 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2394 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2395 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2396 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2397 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2398 // Use the default target triple if unspecified. 2399 if (Opts.Triple.empty()) 2400 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2401 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2402 } 2403 2404 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2405 const char *const *ArgBegin, 2406 const char *const *ArgEnd, 2407 DiagnosticsEngine &Diags) { 2408 bool Success = true; 2409 2410 // Parse the arguments. 2411 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2412 const unsigned IncludedFlagsBitmask = options::CC1Option; 2413 unsigned MissingArgIndex, MissingArgCount; 2414 InputArgList Args = 2415 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2416 MissingArgCount, IncludedFlagsBitmask); 2417 LangOptions &LangOpts = *Res.getLangOpts(); 2418 2419 // Check for missing argument error. 2420 if (MissingArgCount) { 2421 Diags.Report(diag::err_drv_missing_argument) 2422 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2423 Success = false; 2424 } 2425 2426 // Issue errors on unknown arguments. 2427 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2428 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2429 Success = false; 2430 } 2431 2432 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2433 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2434 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2435 Success &= 2436 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2437 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2438 ParseCommentArgs(LangOpts.CommentOpts, Args); 2439 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2440 // FIXME: We shouldn't have to pass the DashX option around here 2441 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2442 LangOpts.IsHeaderFile); 2443 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2444 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2445 Res.getTargetOpts()); 2446 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args); 2447 if (DashX == IK_AST || DashX == IK_LLVM_IR) { 2448 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2449 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2450 // what the input type is. 2451 if (Args.hasArg(OPT_fobjc_arc)) 2452 LangOpts.ObjCAutoRefCount = 1; 2453 // PIClevel and PIELevel are needed during code generation and this should be 2454 // set regardless of the input type. 2455 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2456 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2457 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2458 Diags, LangOpts.Sanitize); 2459 } else { 2460 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2461 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2462 Res.getPreprocessorOpts(), Diags); 2463 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2464 LangOpts.ObjCExceptions = 1; 2465 } 2466 2467 if (LangOpts.CUDA) { 2468 // During CUDA device-side compilation, the aux triple is the 2469 // triple used for host compilation. 2470 if (LangOpts.CUDAIsDevice) 2471 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2472 2473 // Set default FP_CONTRACT to FAST. 2474 if (!Args.hasArg(OPT_ffp_contract)) 2475 Res.getCodeGenOpts().setFPContractMode(CodeGenOptions::FPC_Fast); 2476 } 2477 2478 // FIXME: Override value name discarding when asan or msan is used because the 2479 // backend passes depend on the name of the alloca in order to print out 2480 // names. 2481 Res.getCodeGenOpts().DiscardValueNames &= 2482 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2483 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2484 2485 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2486 // PCH file and find the original header name. Remove the need to do that in 2487 // ParsePreprocessorArgs and remove the FileManager 2488 // parameters from the function and the "FileManager.h" #include. 2489 FileManager FileMgr(Res.getFileSystemOpts()); 2490 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags); 2491 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2492 Res.getFrontendOpts().ProgramAction); 2493 2494 // Turn on -Wspir-compat for SPIR target. 2495 llvm::Triple T(Res.getTargetOpts().Triple); 2496 auto Arch = T.getArch(); 2497 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2498 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2499 } 2500 return Success; 2501 } 2502 2503 std::string CompilerInvocation::getModuleHash() const { 2504 // Note: For QoI reasons, the things we use as a hash here should all be 2505 // dumped via the -module-info flag. 2506 using llvm::hash_code; 2507 using llvm::hash_value; 2508 using llvm::hash_combine; 2509 2510 // Start the signature with the compiler version. 2511 // FIXME: We'd rather use something more cryptographically sound than 2512 // CityHash, but this will do for now. 2513 hash_code code = hash_value(getClangFullRepositoryVersion()); 2514 2515 // Extend the signature with the language options 2516 #define LANGOPT(Name, Bits, Default, Description) \ 2517 code = hash_combine(code, LangOpts->Name); 2518 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2519 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2520 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2521 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2522 #include "clang/Basic/LangOptions.def" 2523 2524 for (StringRef Feature : LangOpts->ModuleFeatures) 2525 code = hash_combine(code, Feature); 2526 2527 // Extend the signature with the target options. 2528 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2529 TargetOpts->ABI); 2530 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2531 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2532 2533 // Extend the signature with preprocessor options. 2534 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2535 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2536 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2537 2538 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2539 I = getPreprocessorOpts().Macros.begin(), 2540 IEnd = getPreprocessorOpts().Macros.end(); 2541 I != IEnd; ++I) { 2542 // If we're supposed to ignore this macro for the purposes of modules, 2543 // don't put it into the hash. 2544 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2545 // Check whether we're ignoring this macro. 2546 StringRef MacroDef = I->first; 2547 if (hsOpts.ModulesIgnoreMacros.count( 2548 llvm::CachedHashString(MacroDef.split('=').first))) 2549 continue; 2550 } 2551 2552 code = hash_combine(code, I->first, I->second); 2553 } 2554 2555 // Extend the signature with the sysroot and other header search options. 2556 code = hash_combine(code, hsOpts.Sysroot, 2557 hsOpts.ModuleFormat, 2558 hsOpts.UseDebugInfo, 2559 hsOpts.UseBuiltinIncludes, 2560 hsOpts.UseStandardSystemIncludes, 2561 hsOpts.UseStandardCXXIncludes, 2562 hsOpts.UseLibcxx, 2563 hsOpts.ModulesValidateDiagnosticOptions); 2564 code = hash_combine(code, hsOpts.ResourceDir); 2565 2566 // Extend the signature with the user build path. 2567 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2568 2569 // Extend the signature with the module file extensions. 2570 const FrontendOptions &frontendOpts = getFrontendOpts(); 2571 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2572 code = ext->hashExtension(code); 2573 } 2574 2575 // Darwin-specific hack: if we have a sysroot, use the contents and 2576 // modification time of 2577 // $sysroot/System/Library/CoreServices/SystemVersion.plist 2578 // as part of the module hash. 2579 if (!hsOpts.Sysroot.empty()) { 2580 SmallString<128> systemVersionFile; 2581 systemVersionFile += hsOpts.Sysroot; 2582 llvm::sys::path::append(systemVersionFile, "System"); 2583 llvm::sys::path::append(systemVersionFile, "Library"); 2584 llvm::sys::path::append(systemVersionFile, "CoreServices"); 2585 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 2586 2587 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 2588 llvm::MemoryBuffer::getFile(systemVersionFile); 2589 if (buffer) { 2590 code = hash_combine(code, buffer.get()->getBuffer()); 2591 2592 struct stat statBuf; 2593 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 2594 code = hash_combine(code, statBuf.st_mtime); 2595 } 2596 } 2597 2598 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2599 } 2600 2601 namespace clang { 2602 2603 template<typename IntTy> 2604 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2605 IntTy Default, 2606 DiagnosticsEngine *Diags) { 2607 IntTy Res = Default; 2608 if (Arg *A = Args.getLastArg(Id)) { 2609 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2610 if (Diags) 2611 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2612 << A->getValue(); 2613 } 2614 } 2615 return Res; 2616 } 2617 2618 2619 // Declared in clang/Frontend/Utils.h. 2620 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2621 DiagnosticsEngine *Diags) { 2622 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2623 } 2624 2625 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2626 uint64_t Default, 2627 DiagnosticsEngine *Diags) { 2628 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2629 } 2630 2631 void BuryPointer(const void *Ptr) { 2632 // This function may be called only a small fixed amount of times per each 2633 // invocation, otherwise we do actually have a leak which we want to report. 2634 // If this function is called more than kGraveYardMaxSize times, the pointers 2635 // will not be properly buried and a leak detector will report a leak, which 2636 // is what we want in such case. 2637 static const size_t kGraveYardMaxSize = 16; 2638 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2639 static std::atomic<unsigned> GraveYardSize; 2640 unsigned Idx = GraveYardSize++; 2641 if (Idx >= kGraveYardMaxSize) 2642 return; 2643 GraveYard[Idx] = Ptr; 2644 } 2645 2646 IntrusiveRefCntPtr<vfs::FileSystem> 2647 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2648 DiagnosticsEngine &Diags) { 2649 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2650 return vfs::getRealFileSystem(); 2651 2652 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2653 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2654 // earlier vfs files are on the bottom 2655 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2656 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2657 llvm::MemoryBuffer::getFile(File); 2658 if (!Buffer) { 2659 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2660 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2661 } 2662 2663 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2664 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2665 if (!FS.get()) { 2666 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2667 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2668 } 2669 Overlay->pushOverlay(FS); 2670 } 2671 return Overlay; 2672 } 2673 } // end namespace clang 2674