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.CallFEntry = Args.hasArg(OPT_mfentry); 721 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 722 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 723 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 724 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 725 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 726 CodeGenOptions::BitcodeFileToLink F; 727 F.Filename = A->getValue(); 728 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) { 729 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded | 730 llvm::Linker::Flags::InternalizeLinkedSymbols; 731 // When linking CUDA bitcode, propagate function attributes so that 732 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 733 F.PropagateAttrs = true; 734 } 735 Opts.LinkBitcodeFiles.push_back(F); 736 } 737 Opts.SanitizeCoverageType = 738 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 739 Opts.SanitizeCoverageIndirectCalls = 740 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 741 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 742 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 743 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 744 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 745 Opts.SanitizeCoverage8bitCounters = 746 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 747 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 748 Opts.SanitizeCoverageTracePCGuard = 749 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 750 Opts.SanitizeMemoryTrackOrigins = 751 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 752 Opts.SanitizeMemoryUseAfterDtor = 753 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 754 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 755 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 756 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 757 OPT_fno_sanitize_address_use_after_scope)) { 758 Opts.SanitizeAddressUseAfterScope = 759 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 760 } 761 Opts.SSPBufferSize = 762 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 763 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 764 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 765 StringRef Val = A->getValue(); 766 unsigned StackAlignment = Opts.StackAlignment; 767 Val.getAsInteger(10, StackAlignment); 768 Opts.StackAlignment = StackAlignment; 769 } 770 771 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 772 StringRef Val = A->getValue(); 773 unsigned StackProbeSize = Opts.StackProbeSize; 774 Val.getAsInteger(0, StackProbeSize); 775 Opts.StackProbeSize = StackProbeSize; 776 } 777 778 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 779 StringRef Name = A->getValue(); 780 unsigned Method = llvm::StringSwitch<unsigned>(Name) 781 .Case("legacy", CodeGenOptions::Legacy) 782 .Case("non-legacy", CodeGenOptions::NonLegacy) 783 .Case("mixed", CodeGenOptions::Mixed) 784 .Default(~0U); 785 if (Method == ~0U) { 786 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 787 Success = false; 788 } else { 789 Opts.setObjCDispatchMethod( 790 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 791 } 792 } 793 794 Opts.EmulatedTLS = 795 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 796 797 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 798 StringRef Name = A->getValue(); 799 unsigned Model = llvm::StringSwitch<unsigned>(Name) 800 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 801 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 802 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 803 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 804 .Default(~0U); 805 if (Model == ~0U) { 806 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 807 Success = false; 808 } else { 809 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 810 } 811 } 812 813 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 814 StringRef Val = A->getValue(); 815 if (Val == "fast") 816 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 817 else if (Val == "on") 818 Opts.setFPContractMode(CodeGenOptions::FPC_On); 819 else if (Val == "off") 820 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 821 else 822 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 823 } 824 825 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 826 StringRef Val = A->getValue(); 827 if (Val == "ieee") 828 Opts.FPDenormalMode = "ieee"; 829 else if (Val == "preserve-sign") 830 Opts.FPDenormalMode = "preserve-sign"; 831 else if (Val == "positive-zero") 832 Opts.FPDenormalMode = "positive-zero"; 833 else 834 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 835 } 836 837 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 838 if (A->getOption().matches(OPT_fpcc_struct_return)) { 839 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 840 } else { 841 assert(A->getOption().matches(OPT_freg_struct_return)); 842 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 843 } 844 } 845 846 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 847 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 848 bool NeedLocTracking = false; 849 850 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 851 if (!Opts.OptRecordFile.empty()) 852 NeedLocTracking = true; 853 854 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 855 Opts.OptimizationRemarkPattern = 856 GenerateOptimizationRemarkRegex(Diags, Args, A); 857 NeedLocTracking = true; 858 } 859 860 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 861 Opts.OptimizationRemarkMissedPattern = 862 GenerateOptimizationRemarkRegex(Diags, Args, A); 863 NeedLocTracking = true; 864 } 865 866 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 867 Opts.OptimizationRemarkAnalysisPattern = 868 GenerateOptimizationRemarkRegex(Diags, Args, A); 869 NeedLocTracking = true; 870 } 871 872 Opts.DiagnosticsWithHotness = 873 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 874 if (Opts.DiagnosticsWithHotness && 875 Opts.getProfileUse() == CodeGenOptions::ProfileNone) 876 Diags.Report(diag::warn_drv_fdiagnostics_show_hotness_requires_pgo); 877 878 // If the user requested to use a sample profile for PGO, then the 879 // backend will need to track source location information so the profile 880 // can be incorporated into the IR. 881 if (!Opts.SampleProfileFile.empty()) 882 NeedLocTracking = true; 883 884 // If the user requested a flag that requires source locations available in 885 // the backend, make sure that the backend tracks source location information. 886 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 887 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 888 889 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 890 891 // Parse -fsanitize-recover= arguments. 892 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 893 parseSanitizerKinds("-fsanitize-recover=", 894 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 895 Opts.SanitizeRecover); 896 parseSanitizerKinds("-fsanitize-trap=", 897 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 898 Opts.SanitizeTrap); 899 900 Opts.CudaGpuBinaryFileNames = 901 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 902 903 Opts.Backchain = Args.hasArg(OPT_mbackchain); 904 905 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 906 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 907 908 return Success; 909 } 910 911 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 912 ArgList &Args) { 913 using namespace options; 914 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 915 Opts.Targets = Args.getAllArgValues(OPT_MT); 916 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 917 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 918 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 919 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 920 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 921 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 922 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 923 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 924 Opts.ModuleDependencyOutputDir = 925 Args.getLastArgValue(OPT_module_dependency_dir); 926 if (Args.hasArg(OPT_MV)) 927 Opts.OutputFormat = DependencyOutputFormat::NMake; 928 // Add sanitizer blacklists as extra dependencies. 929 // They won't be discovered by the regular preprocessor, so 930 // we let make / ninja to know about this implicit dependency. 931 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 932 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 933 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 934 ModuleFiles.end()); 935 } 936 937 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 938 // Color diagnostics default to auto ("on" if terminal supports) in the driver 939 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 940 // Support both clang's -f[no-]color-diagnostics and gcc's 941 // -f[no-]diagnostics-colors[=never|always|auto]. 942 enum { 943 Colors_On, 944 Colors_Off, 945 Colors_Auto 946 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 947 for (Arg *A : Args) { 948 const Option &O = A->getOption(); 949 if (O.matches(options::OPT_fcolor_diagnostics) || 950 O.matches(options::OPT_fdiagnostics_color)) { 951 ShowColors = Colors_On; 952 } else if (O.matches(options::OPT_fno_color_diagnostics) || 953 O.matches(options::OPT_fno_diagnostics_color)) { 954 ShowColors = Colors_Off; 955 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 956 StringRef Value(A->getValue()); 957 if (Value == "always") 958 ShowColors = Colors_On; 959 else if (Value == "never") 960 ShowColors = Colors_Off; 961 else if (Value == "auto") 962 ShowColors = Colors_Auto; 963 } 964 } 965 return ShowColors == Colors_On || 966 (ShowColors == Colors_Auto && 967 llvm::sys::Process::StandardErrHasColors()); 968 } 969 970 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 971 DiagnosticsEngine *Diags, 972 bool DefaultDiagColor, bool DefaultShowOpt) { 973 using namespace options; 974 bool Success = true; 975 976 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 977 if (Arg *A = 978 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 979 Opts.DiagnosticSerializationFile = A->getValue(); 980 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 981 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 982 Opts.Pedantic = Args.hasArg(OPT_pedantic); 983 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 984 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 985 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 986 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 987 OPT_fno_show_column, 988 /*Default=*/true); 989 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 990 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 991 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 992 Opts.ShowOptionNames = 993 Args.hasFlag(OPT_fdiagnostics_show_option, 994 OPT_fno_diagnostics_show_option, DefaultShowOpt); 995 996 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 997 998 // Default behavior is to not to show note include stacks. 999 Opts.ShowNoteIncludeStack = false; 1000 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1001 OPT_fno_diagnostics_show_note_include_stack)) 1002 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1003 Opts.ShowNoteIncludeStack = true; 1004 1005 StringRef ShowOverloads = 1006 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1007 if (ShowOverloads == "best") 1008 Opts.setShowOverloads(Ovl_Best); 1009 else if (ShowOverloads == "all") 1010 Opts.setShowOverloads(Ovl_All); 1011 else { 1012 Success = false; 1013 if (Diags) 1014 Diags->Report(diag::err_drv_invalid_value) 1015 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1016 << ShowOverloads; 1017 } 1018 1019 StringRef ShowCategory = 1020 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1021 if (ShowCategory == "none") 1022 Opts.ShowCategories = 0; 1023 else if (ShowCategory == "id") 1024 Opts.ShowCategories = 1; 1025 else if (ShowCategory == "name") 1026 Opts.ShowCategories = 2; 1027 else { 1028 Success = false; 1029 if (Diags) 1030 Diags->Report(diag::err_drv_invalid_value) 1031 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1032 << ShowCategory; 1033 } 1034 1035 StringRef Format = 1036 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1037 if (Format == "clang") 1038 Opts.setFormat(DiagnosticOptions::Clang); 1039 else if (Format == "msvc") 1040 Opts.setFormat(DiagnosticOptions::MSVC); 1041 else if (Format == "msvc-fallback") { 1042 Opts.setFormat(DiagnosticOptions::MSVC); 1043 Opts.CLFallbackMode = true; 1044 } else if (Format == "vi") 1045 Opts.setFormat(DiagnosticOptions::Vi); 1046 else { 1047 Success = false; 1048 if (Diags) 1049 Diags->Report(diag::err_drv_invalid_value) 1050 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1051 << Format; 1052 } 1053 1054 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1055 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1056 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1057 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1058 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1059 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1060 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1061 Diags, DiagMask); 1062 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1063 DiagMask = DiagnosticLevelMask::All; 1064 Opts.setVerifyIgnoreUnexpected(DiagMask); 1065 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1066 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1067 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1068 Opts.MacroBacktraceLimit = 1069 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1070 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1071 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1072 Args, OPT_ftemplate_backtrace_limit, 1073 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1074 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1075 Args, OPT_fconstexpr_backtrace_limit, 1076 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1077 Opts.SpellCheckingLimit = getLastArgIntValue( 1078 Args, OPT_fspell_checking_limit, 1079 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1080 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1081 DiagnosticOptions::DefaultTabStop, Diags); 1082 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1083 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1084 if (Diags) 1085 Diags->Report(diag::warn_ignoring_ftabstop_value) 1086 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1087 } 1088 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1089 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1090 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1091 1092 return Success; 1093 } 1094 1095 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1096 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1097 } 1098 1099 /// Parse the argument to the -ftest-module-file-extension 1100 /// command-line argument. 1101 /// 1102 /// \returns true on error, false on success. 1103 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1104 std::string &BlockName, 1105 unsigned &MajorVersion, 1106 unsigned &MinorVersion, 1107 bool &Hashed, 1108 std::string &UserInfo) { 1109 SmallVector<StringRef, 5> Args; 1110 Arg.split(Args, ':', 5); 1111 if (Args.size() < 5) 1112 return true; 1113 1114 BlockName = Args[0]; 1115 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1116 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1117 if (Args[3].getAsInteger(2, Hashed)) return true; 1118 if (Args.size() > 4) 1119 UserInfo = Args[4]; 1120 return false; 1121 } 1122 1123 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1124 DiagnosticsEngine &Diags, 1125 bool &IsHeaderFile) { 1126 using namespace options; 1127 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1128 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1129 switch (A->getOption().getID()) { 1130 default: 1131 llvm_unreachable("Invalid option in group!"); 1132 case OPT_ast_list: 1133 Opts.ProgramAction = frontend::ASTDeclList; break; 1134 case OPT_ast_dump: 1135 case OPT_ast_dump_lookups: 1136 Opts.ProgramAction = frontend::ASTDump; break; 1137 case OPT_ast_print: 1138 Opts.ProgramAction = frontend::ASTPrint; break; 1139 case OPT_ast_view: 1140 Opts.ProgramAction = frontend::ASTView; break; 1141 case OPT_dump_raw_tokens: 1142 Opts.ProgramAction = frontend::DumpRawTokens; break; 1143 case OPT_dump_tokens: 1144 Opts.ProgramAction = frontend::DumpTokens; break; 1145 case OPT_S: 1146 Opts.ProgramAction = frontend::EmitAssembly; break; 1147 case OPT_emit_llvm_bc: 1148 Opts.ProgramAction = frontend::EmitBC; break; 1149 case OPT_emit_html: 1150 Opts.ProgramAction = frontend::EmitHTML; break; 1151 case OPT_emit_llvm: 1152 Opts.ProgramAction = frontend::EmitLLVM; break; 1153 case OPT_emit_llvm_only: 1154 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1155 case OPT_emit_codegen_only: 1156 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1157 case OPT_emit_obj: 1158 Opts.ProgramAction = frontend::EmitObj; break; 1159 case OPT_fixit_EQ: 1160 Opts.FixItSuffix = A->getValue(); 1161 // fall-through! 1162 case OPT_fixit: 1163 Opts.ProgramAction = frontend::FixIt; break; 1164 case OPT_emit_module: 1165 Opts.ProgramAction = frontend::GenerateModule; break; 1166 case OPT_emit_module_interface: 1167 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1168 case OPT_emit_pch: 1169 Opts.ProgramAction = frontend::GeneratePCH; break; 1170 case OPT_emit_pth: 1171 Opts.ProgramAction = frontend::GeneratePTH; break; 1172 case OPT_init_only: 1173 Opts.ProgramAction = frontend::InitOnly; break; 1174 case OPT_fsyntax_only: 1175 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1176 case OPT_module_file_info: 1177 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1178 case OPT_verify_pch: 1179 Opts.ProgramAction = frontend::VerifyPCH; break; 1180 case OPT_print_decl_contexts: 1181 Opts.ProgramAction = frontend::PrintDeclContext; break; 1182 case OPT_print_preamble: 1183 Opts.ProgramAction = frontend::PrintPreamble; break; 1184 case OPT_E: 1185 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1186 case OPT_rewrite_macros: 1187 Opts.ProgramAction = frontend::RewriteMacros; break; 1188 case OPT_rewrite_objc: 1189 Opts.ProgramAction = frontend::RewriteObjC; break; 1190 case OPT_rewrite_test: 1191 Opts.ProgramAction = frontend::RewriteTest; break; 1192 case OPT_analyze: 1193 Opts.ProgramAction = frontend::RunAnalysis; break; 1194 case OPT_migrate: 1195 Opts.ProgramAction = frontend::MigrateSource; break; 1196 case OPT_Eonly: 1197 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1198 } 1199 } 1200 1201 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1202 Opts.Plugins.emplace_back(A->getValue(0)); 1203 Opts.ProgramAction = frontend::PluginAction; 1204 Opts.ActionName = A->getValue(); 1205 } 1206 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1207 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1208 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1209 1210 for (const std::string &Arg : 1211 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1212 std::string BlockName; 1213 unsigned MajorVersion; 1214 unsigned MinorVersion; 1215 bool Hashed; 1216 std::string UserInfo; 1217 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1218 MinorVersion, Hashed, UserInfo)) { 1219 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1220 1221 continue; 1222 } 1223 1224 // Add the testing module file extension. 1225 Opts.ModuleFileExtensions.push_back( 1226 std::make_shared<TestModuleFileExtension>( 1227 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1228 } 1229 1230 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1231 Opts.CodeCompletionAt = 1232 ParsedSourceLocation::FromString(A->getValue()); 1233 if (Opts.CodeCompletionAt.FileName.empty()) 1234 Diags.Report(diag::err_drv_invalid_value) 1235 << A->getAsString(Args) << A->getValue(); 1236 } 1237 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1238 1239 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1240 Opts.Plugins = Args.getAllArgValues(OPT_load); 1241 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1242 Opts.ShowHelp = Args.hasArg(OPT_help); 1243 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1244 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1245 Opts.ShowVersion = Args.hasArg(OPT_version); 1246 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1247 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1248 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1249 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1250 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1251 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1252 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1253 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1254 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1255 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1256 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1257 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1258 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 1259 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1260 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1261 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1262 1263 Opts.CodeCompleteOpts.IncludeMacros 1264 = Args.hasArg(OPT_code_completion_macros); 1265 Opts.CodeCompleteOpts.IncludeCodePatterns 1266 = Args.hasArg(OPT_code_completion_patterns); 1267 Opts.CodeCompleteOpts.IncludeGlobals 1268 = !Args.hasArg(OPT_no_code_completion_globals); 1269 Opts.CodeCompleteOpts.IncludeBriefComments 1270 = Args.hasArg(OPT_code_completion_brief_comments); 1271 1272 Opts.OverrideRecordLayoutsFile 1273 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1274 Opts.AuxTriple = 1275 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1276 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1277 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1278 1279 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1280 OPT_arcmt_modify, 1281 OPT_arcmt_migrate)) { 1282 switch (A->getOption().getID()) { 1283 default: 1284 llvm_unreachable("missed a case"); 1285 case OPT_arcmt_check: 1286 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1287 break; 1288 case OPT_arcmt_modify: 1289 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1290 break; 1291 case OPT_arcmt_migrate: 1292 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1293 break; 1294 } 1295 } 1296 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1297 Opts.ARCMTMigrateReportOut 1298 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1299 Opts.ARCMTMigrateEmitARCErrors 1300 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1301 1302 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1303 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1304 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1305 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1306 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1307 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1308 if (Args.hasArg(OPT_objcmt_migrate_property)) 1309 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1310 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1311 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1312 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1313 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1314 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1315 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1316 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1317 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1318 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1319 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1320 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1321 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1322 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1323 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1324 if (Args.hasArg(OPT_objcmt_atomic_property)) 1325 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1326 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1327 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1328 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1329 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1330 if (Args.hasArg(OPT_objcmt_migrate_all)) 1331 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1332 1333 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1334 1335 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1336 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1337 Diags.Report(diag::err_drv_argument_not_allowed_with) 1338 << "ARC migration" << "ObjC migration"; 1339 } 1340 1341 InputKind DashX = IK_None; 1342 if (const Arg *A = Args.getLastArg(OPT_x)) { 1343 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 1344 .Case("c", IK_C) 1345 .Case("cl", IK_OpenCL) 1346 .Case("cuda", IK_CUDA) 1347 .Case("c++", IK_CXX) 1348 .Case("c++-module", IK_CXX) 1349 .Case("objective-c", IK_ObjC) 1350 .Case("objective-c++", IK_ObjCXX) 1351 .Case("cpp-output", IK_PreprocessedC) 1352 .Case("assembler-with-cpp", IK_Asm) 1353 .Case("c++-cpp-output", IK_PreprocessedCXX) 1354 .Case("c++-module-cpp-output", IK_PreprocessedCXX) 1355 .Case("cuda-cpp-output", IK_PreprocessedCuda) 1356 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1357 .Case("objc-cpp-output", IK_PreprocessedObjC) 1358 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1359 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1360 .Case("c-header", IK_C) 1361 .Case("cl-header", IK_OpenCL) 1362 .Case("objective-c-header", IK_ObjC) 1363 .Case("c++-header", IK_CXX) 1364 .Case("objective-c++-header", IK_ObjCXX) 1365 .Cases("ast", "pcm", IK_AST) 1366 .Case("ir", IK_LLVM_IR) 1367 .Case("renderscript", IK_RenderScript) 1368 .Default(IK_None); 1369 if (DashX == IK_None) 1370 Diags.Report(diag::err_drv_invalid_value) 1371 << A->getAsString(Args) << A->getValue(); 1372 IsHeaderFile = llvm::StringSwitch<bool>(A->getValue()) 1373 .Case("c-header", true) 1374 .Case("cl-header", true) 1375 .Case("objective-c-header", true) 1376 .Case("c++-header", true) 1377 .Case("objective-c++-header", true) 1378 .Default(false); 1379 } 1380 1381 // '-' is the default input if none is given. 1382 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1383 Opts.Inputs.clear(); 1384 if (Inputs.empty()) 1385 Inputs.push_back("-"); 1386 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1387 InputKind IK = DashX; 1388 if (IK == IK_None) { 1389 IK = FrontendOptions::getInputKindForExtension( 1390 StringRef(Inputs[i]).rsplit('.').second); 1391 // FIXME: Remove this hack. 1392 if (i == 0) 1393 DashX = IK; 1394 } 1395 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1396 } 1397 1398 return DashX; 1399 } 1400 1401 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1402 void *MainAddr) { 1403 std::string ClangExecutable = 1404 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1405 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1406 1407 // Compute the path to the resource directory. 1408 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1409 SmallString<128> P(Dir); 1410 if (ClangResourceDir != "") 1411 llvm::sys::path::append(P, ClangResourceDir); 1412 else 1413 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1414 "clang", CLANG_VERSION_STRING); 1415 1416 return P.str(); 1417 } 1418 1419 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1420 using namespace options; 1421 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1422 Opts.Verbose = Args.hasArg(OPT_v); 1423 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1424 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1425 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1426 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1427 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1428 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1429 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 1430 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1431 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1432 Opts.AddPrebuiltModulePath(A->getValue()); 1433 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1434 Opts.ModulesValidateDiagnosticOptions = 1435 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1436 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1437 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1438 Opts.ModuleCachePruneInterval = 1439 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1440 Opts.ModuleCachePruneAfter = 1441 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1442 Opts.ModulesValidateOncePerBuildSession = 1443 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1444 Opts.BuildSessionTimestamp = 1445 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1446 Opts.ModulesValidateSystemHeaders = 1447 Args.hasArg(OPT_fmodules_validate_system_headers); 1448 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1449 Opts.ModuleFormat = A->getValue(); 1450 1451 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1452 StringRef MacroDef = A->getValue(); 1453 Opts.ModulesIgnoreMacros.insert( 1454 llvm::CachedHashString(MacroDef.split('=').first)); 1455 } 1456 1457 // Add -I..., -F..., and -index-header-map options in order. 1458 bool IsIndexHeaderMap = false; 1459 bool IsSysrootSpecified = 1460 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1461 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1462 if (A->getOption().matches(OPT_index_header_map)) { 1463 // -index-header-map applies to the next -I or -F. 1464 IsIndexHeaderMap = true; 1465 continue; 1466 } 1467 1468 frontend::IncludeDirGroup Group = 1469 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1470 1471 bool IsFramework = A->getOption().matches(OPT_F); 1472 std::string Path = A->getValue(); 1473 1474 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1475 SmallString<32> Buffer; 1476 llvm::sys::path::append(Buffer, Opts.Sysroot, 1477 llvm::StringRef(A->getValue()).substr(1)); 1478 Path = Buffer.str(); 1479 } 1480 1481 Opts.AddPath(Path, Group, IsFramework, 1482 /*IgnoreSysroot*/ true); 1483 IsIndexHeaderMap = false; 1484 } 1485 1486 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1487 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1488 for (const Arg *A : 1489 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1490 if (A->getOption().matches(OPT_iprefix)) 1491 Prefix = A->getValue(); 1492 else if (A->getOption().matches(OPT_iwithprefix)) 1493 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1494 else 1495 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1496 } 1497 1498 for (const Arg *A : Args.filtered(OPT_idirafter)) 1499 Opts.AddPath(A->getValue(), frontend::After, false, true); 1500 for (const Arg *A : Args.filtered(OPT_iquote)) 1501 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1502 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1503 Opts.AddPath(A->getValue(), frontend::System, false, 1504 !A->getOption().matches(OPT_iwithsysroot)); 1505 for (const Arg *A : Args.filtered(OPT_iframework)) 1506 Opts.AddPath(A->getValue(), frontend::System, true, true); 1507 1508 // Add the paths for the various language specific isystem flags. 1509 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1510 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1511 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1512 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1513 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1514 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1515 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1516 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1517 1518 // Add the internal paths from a driver that detects standard include paths. 1519 for (const Arg *A : 1520 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1521 frontend::IncludeDirGroup Group = frontend::System; 1522 if (A->getOption().matches(OPT_internal_externc_isystem)) 1523 Group = frontend::ExternCSystem; 1524 Opts.AddPath(A->getValue(), Group, false, true); 1525 } 1526 1527 // Add the path prefixes which are implicitly treated as being system headers. 1528 for (const Arg *A : 1529 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1530 Opts.AddSystemHeaderPrefix( 1531 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1532 1533 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1534 Opts.AddVFSOverlayFile(A->getValue()); 1535 } 1536 1537 static bool isOpenCL(LangStandard::Kind LangStd) { 1538 return LangStd == LangStandard::lang_opencl || 1539 LangStd == LangStandard::lang_opencl11 || 1540 LangStd == LangStandard::lang_opencl12 || 1541 LangStd == LangStandard::lang_opencl20; 1542 } 1543 1544 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1545 const llvm::Triple &T, 1546 PreprocessorOptions &PPOpts, 1547 LangStandard::Kind LangStd) { 1548 // Set some properties which depend solely on the input kind; it would be nice 1549 // to move these to the language standard, and have the driver resolve the 1550 // input kind + language standard. 1551 if (IK == IK_Asm) { 1552 Opts.AsmPreprocessor = 1; 1553 } else if (IK == IK_ObjC || 1554 IK == IK_ObjCXX || 1555 IK == IK_PreprocessedObjC || 1556 IK == IK_PreprocessedObjCXX) { 1557 Opts.ObjC1 = Opts.ObjC2 = 1; 1558 } 1559 1560 if (LangStd == LangStandard::lang_unspecified) { 1561 // Based on the base language, pick one. 1562 switch (IK) { 1563 case IK_None: 1564 case IK_AST: 1565 case IK_LLVM_IR: 1566 llvm_unreachable("Invalid input kind!"); 1567 case IK_OpenCL: 1568 LangStd = LangStandard::lang_opencl; 1569 break; 1570 case IK_CUDA: 1571 case IK_PreprocessedCuda: 1572 LangStd = LangStandard::lang_cuda; 1573 break; 1574 case IK_Asm: 1575 case IK_C: 1576 case IK_PreprocessedC: 1577 // The PS4 uses C99 as the default C standard. 1578 if (T.isPS4()) 1579 LangStd = LangStandard::lang_gnu99; 1580 else 1581 LangStd = LangStandard::lang_gnu11; 1582 break; 1583 case IK_ObjC: 1584 case IK_PreprocessedObjC: 1585 LangStd = LangStandard::lang_gnu11; 1586 break; 1587 case IK_CXX: 1588 case IK_PreprocessedCXX: 1589 case IK_ObjCXX: 1590 case IK_PreprocessedObjCXX: 1591 LangStd = LangStandard::lang_gnucxx98; 1592 break; 1593 case IK_RenderScript: 1594 LangStd = LangStandard::lang_c99; 1595 break; 1596 } 1597 } 1598 1599 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1600 Opts.LineComment = Std.hasLineComments(); 1601 Opts.C99 = Std.isC99(); 1602 Opts.C11 = Std.isC11(); 1603 Opts.CPlusPlus = Std.isCPlusPlus(); 1604 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1605 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1606 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1607 Opts.Digraphs = Std.hasDigraphs(); 1608 Opts.GNUMode = Std.isGNUMode(); 1609 Opts.GNUInline = Std.isC89(); 1610 Opts.HexFloats = Std.hasHexFloats(); 1611 Opts.ImplicitInt = Std.hasImplicitInt(); 1612 1613 // Set OpenCL Version. 1614 Opts.OpenCL = isOpenCL(LangStd) || IK == IK_OpenCL; 1615 if (LangStd == LangStandard::lang_opencl) 1616 Opts.OpenCLVersion = 100; 1617 else if (LangStd == LangStandard::lang_opencl11) 1618 Opts.OpenCLVersion = 110; 1619 else if (LangStd == LangStandard::lang_opencl12) 1620 Opts.OpenCLVersion = 120; 1621 else if (LangStd == LangStandard::lang_opencl20) 1622 Opts.OpenCLVersion = 200; 1623 1624 // OpenCL has some additional defaults. 1625 if (Opts.OpenCL) { 1626 Opts.AltiVec = 0; 1627 Opts.ZVector = 0; 1628 Opts.CXXOperatorNames = 1; 1629 Opts.LaxVectorConversions = 0; 1630 Opts.DefaultFPContract = 1; 1631 Opts.NativeHalfType = 1; 1632 Opts.NativeHalfArgsAndReturns = 1; 1633 // Include default header file for OpenCL. 1634 if (Opts.IncludeDefaultHeader) { 1635 PPOpts.Includes.push_back("opencl-c.h"); 1636 } 1637 } 1638 1639 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || 1640 LangStd == LangStandard::lang_cuda; 1641 1642 Opts.RenderScript = IK == IK_RenderScript; 1643 if (Opts.RenderScript) { 1644 Opts.NativeHalfType = 1; 1645 Opts.NativeHalfArgsAndReturns = 1; 1646 } 1647 1648 // OpenCL and C++ both have bool, true, false keywords. 1649 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1650 1651 // OpenCL has half keyword 1652 Opts.Half = Opts.OpenCL; 1653 1654 // C++ has wchar_t keyword. 1655 Opts.WChar = Opts.CPlusPlus; 1656 1657 Opts.GNUKeywords = Opts.GNUMode; 1658 Opts.CXXOperatorNames = Opts.CPlusPlus; 1659 1660 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1661 1662 Opts.DollarIdents = !Opts.AsmPreprocessor; 1663 } 1664 1665 /// Attempt to parse a visibility value out of the given argument. 1666 static Visibility parseVisibility(Arg *arg, ArgList &args, 1667 DiagnosticsEngine &diags) { 1668 StringRef value = arg->getValue(); 1669 if (value == "default") { 1670 return DefaultVisibility; 1671 } else if (value == "hidden" || value == "internal") { 1672 return HiddenVisibility; 1673 } else if (value == "protected") { 1674 // FIXME: diagnose if target does not support protected visibility 1675 return ProtectedVisibility; 1676 } 1677 1678 diags.Report(diag::err_drv_invalid_value) 1679 << arg->getAsString(args) << value; 1680 return DefaultVisibility; 1681 } 1682 1683 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1684 const TargetOptions &TargetOpts, 1685 PreprocessorOptions &PPOpts, 1686 DiagnosticsEngine &Diags) { 1687 // FIXME: Cleanup per-file based stuff. 1688 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1689 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1690 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1691 #define LANGSTANDARD(id, name, desc, features) \ 1692 .Case(name, LangStandard::lang_##id) 1693 #define LANGSTANDARD_ALIAS(id, alias) \ 1694 .Case(alias, LangStandard::lang_##id) 1695 #include "clang/Frontend/LangStandards.def" 1696 .Default(LangStandard::lang_unspecified); 1697 if (LangStd == LangStandard::lang_unspecified) 1698 Diags.Report(diag::err_drv_invalid_value) 1699 << A->getAsString(Args) << A->getValue(); 1700 else { 1701 // Valid standard, check to make sure language and standard are 1702 // compatible. 1703 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1704 switch (IK) { 1705 case IK_C: 1706 case IK_ObjC: 1707 case IK_PreprocessedC: 1708 case IK_PreprocessedObjC: 1709 if (!(Std.isC89() || Std.isC99())) 1710 Diags.Report(diag::err_drv_argument_not_allowed_with) 1711 << A->getAsString(Args) << "C/ObjC"; 1712 break; 1713 case IK_CXX: 1714 case IK_ObjCXX: 1715 case IK_PreprocessedCXX: 1716 case IK_PreprocessedObjCXX: 1717 if (!Std.isCPlusPlus()) 1718 Diags.Report(diag::err_drv_argument_not_allowed_with) 1719 << A->getAsString(Args) << "C++/ObjC++"; 1720 break; 1721 case IK_OpenCL: 1722 if (!isOpenCL(LangStd)) 1723 Diags.Report(diag::err_drv_argument_not_allowed_with) 1724 << A->getAsString(Args) << "OpenCL"; 1725 break; 1726 case IK_CUDA: 1727 case IK_PreprocessedCuda: 1728 if (!Std.isCPlusPlus()) 1729 Diags.Report(diag::err_drv_argument_not_allowed_with) 1730 << A->getAsString(Args) << "CUDA"; 1731 break; 1732 default: 1733 break; 1734 } 1735 } 1736 } 1737 1738 // -cl-std only applies for OpenCL language standards. 1739 // Override the -std option in this case. 1740 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1741 LangStandard::Kind OpenCLLangStd 1742 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1743 .Cases("cl", "CL", LangStandard::lang_opencl) 1744 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1745 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1746 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1747 .Default(LangStandard::lang_unspecified); 1748 1749 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1750 Diags.Report(diag::err_drv_invalid_value) 1751 << A->getAsString(Args) << A->getValue(); 1752 } 1753 else 1754 LangStd = OpenCLLangStd; 1755 } 1756 1757 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1758 1759 llvm::Triple T(TargetOpts.Triple); 1760 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1761 1762 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1763 // This option should be deprecated for CL > 1.0 because 1764 // this option was added for compatibility with OpenCL 1.0. 1765 if (Args.getLastArg(OPT_cl_strict_aliasing) 1766 && Opts.OpenCLVersion > 100) { 1767 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1768 std::string(".") + 1769 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1770 Diags.Report(diag::warn_option_invalid_ocl_version) 1771 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1772 } 1773 1774 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1775 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1776 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1777 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1778 // name, as it doesn't seem a useful distinction. 1779 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1780 Opts.GNUKeywords); 1781 1782 if (Args.hasArg(OPT_fno_operator_names)) 1783 Opts.CXXOperatorNames = 0; 1784 1785 if (Args.hasArg(OPT_fcuda_is_device)) 1786 Opts.CUDAIsDevice = 1; 1787 1788 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1789 Opts.CUDAAllowVariadicFunctions = 1; 1790 1791 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1792 Opts.CUDAHostDeviceConstexpr = 0; 1793 1794 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1795 Opts.CUDADeviceFlushDenormalsToZero = 1; 1796 1797 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1798 Opts.CUDADeviceApproxTranscendentals = 1; 1799 1800 if (Opts.ObjC1) { 1801 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1802 StringRef value = arg->getValue(); 1803 if (Opts.ObjCRuntime.tryParse(value)) 1804 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1805 } 1806 1807 if (Args.hasArg(OPT_fobjc_gc_only)) 1808 Opts.setGC(LangOptions::GCOnly); 1809 else if (Args.hasArg(OPT_fobjc_gc)) 1810 Opts.setGC(LangOptions::HybridGC); 1811 else if (Args.hasArg(OPT_fobjc_arc)) { 1812 Opts.ObjCAutoRefCount = 1; 1813 if (!Opts.ObjCRuntime.allowsARC()) 1814 Diags.Report(diag::err_arc_unsupported_on_runtime); 1815 } 1816 1817 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 1818 // whether the feature is actually enabled. This is predominantly 1819 // determined by -fobjc-runtime, but we allow it to be overridden 1820 // from the command line for testing purposes. 1821 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1822 Opts.ObjCWeakRuntime = 1; 1823 else 1824 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 1825 1826 // ObjCWeak determines whether __weak is actually enabled. 1827 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 1828 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 1829 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 1830 assert(!Opts.ObjCWeak); 1831 } else if (Opts.getGC() != LangOptions::NonGC) { 1832 Diags.Report(diag::err_objc_weak_with_gc); 1833 } else if (!Opts.ObjCWeakRuntime) { 1834 Diags.Report(diag::err_objc_weak_unsupported); 1835 } else { 1836 Opts.ObjCWeak = 1; 1837 } 1838 } else if (Opts.ObjCAutoRefCount) { 1839 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 1840 } 1841 1842 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1843 Opts.ObjCInferRelatedResultType = 0; 1844 1845 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1846 Opts.ObjCSubscriptingLegacyRuntime = 1847 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1848 } 1849 1850 if (Args.hasArg(OPT_fgnu89_inline)) { 1851 if (Opts.CPlusPlus) 1852 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline" 1853 << "C++/ObjC++"; 1854 else 1855 Opts.GNUInline = 1; 1856 } 1857 1858 if (Args.hasArg(OPT_fapple_kext)) { 1859 if (!Opts.CPlusPlus) 1860 Diags.Report(diag::warn_c_kext); 1861 else 1862 Opts.AppleKext = 1; 1863 } 1864 1865 if (Args.hasArg(OPT_print_ivar_layout)) 1866 Opts.ObjCGCBitmapPrint = 1; 1867 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1868 Opts.NoConstantCFStrings = 1; 1869 1870 if (Args.hasArg(OPT_faltivec)) 1871 Opts.AltiVec = 1; 1872 1873 if (Args.hasArg(OPT_fzvector)) 1874 Opts.ZVector = 1; 1875 1876 if (Args.hasArg(OPT_pthread)) 1877 Opts.POSIXThreads = 1; 1878 1879 // The value-visibility mode defaults to "default". 1880 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1881 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1882 } else { 1883 Opts.setValueVisibilityMode(DefaultVisibility); 1884 } 1885 1886 // The type-visibility mode defaults to the value-visibility mode. 1887 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1888 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1889 } else { 1890 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1891 } 1892 1893 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1894 Opts.InlineVisibilityHidden = 1; 1895 1896 if (Args.hasArg(OPT_ftrapv)) { 1897 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1898 // Set the handler, if one is specified. 1899 Opts.OverflowHandler = 1900 Args.getLastArgValue(OPT_ftrapv_handler); 1901 } 1902 else if (Args.hasArg(OPT_fwrapv)) 1903 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1904 1905 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1906 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1907 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1908 Opts.MSCompatibilityVersion = 0; 1909 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1910 VersionTuple VT; 1911 if (VT.tryParse(A->getValue())) 1912 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1913 << A->getValue(); 1914 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1915 VT.getMinor().getValueOr(0) * 100000 + 1916 VT.getSubminor().getValueOr(0); 1917 } 1918 1919 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1920 // is specified, or -std is set to a conforming mode. 1921 // Trigraphs are disabled by default in c++1z onwards. 1922 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1923 Opts.Trigraphs = 1924 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1925 1926 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1927 OPT_fno_dollars_in_identifiers, 1928 Opts.DollarIdents); 1929 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1930 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1931 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1932 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1933 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1934 Opts.ConstStrings); 1935 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1936 Opts.LaxVectorConversions = 0; 1937 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1938 Opts.ThreadsafeStatics = 0; 1939 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1940 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1941 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1942 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1943 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 1944 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1945 1946 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 1947 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1948 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 1949 && Opts.OpenCLVersion >= 200); 1950 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1951 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 1952 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 1953 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 1954 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1955 Opts.ModulesDeclUse = 1956 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1957 Opts.ModulesLocalVisibility = 1958 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 1959 Opts.ModularCodegen = Args.hasArg(OPT_fmodule_codegen); 1960 Opts.ModulesSearchAll = Opts.Modules && 1961 !Args.hasArg(OPT_fno_modules_search_all) && 1962 Args.hasArg(OPT_fmodules_search_all); 1963 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1964 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 1965 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1966 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1967 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1968 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1969 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1970 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1971 if (!Opts.NoBuiltin) 1972 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 1973 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1974 Opts.RelaxedTemplateTemplateArgs = 1975 Args.hasArg(OPT_frelaxed_template_template_args); 1976 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 1977 Opts.AlignedAllocation = 1978 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 1979 Opts.AlignedAllocation); 1980 Opts.NewAlignOverride = 1981 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 1982 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 1983 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 1984 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 1985 << A->getValue(); 1986 Opts.NewAlignOverride = 0; 1987 } 1988 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 1989 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1990 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1991 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1992 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1993 Opts.InstantiationDepth = 1994 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 1995 Opts.ArrowDepth = 1996 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1997 Opts.ConstexprCallDepth = 1998 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1999 Opts.ConstexprStepLimit = 2000 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2001 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2002 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2003 Opts.NumLargeByValueCopy = 2004 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2005 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2006 Opts.ObjCConstantStringClass = 2007 Args.getLastArgValue(OPT_fconstant_string_class); 2008 Opts.ObjCDefaultSynthProperties = 2009 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2010 Opts.EncodeExtendedBlockSig = 2011 Args.hasArg(OPT_fencode_extended_block_signature); 2012 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2013 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2014 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2015 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2016 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2017 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2018 Opts.Static = Args.hasArg(OPT_static_define); 2019 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2020 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2021 || Args.hasArg(OPT_fdump_record_layouts); 2022 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2023 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2024 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2025 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2026 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2027 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2028 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2029 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2030 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2031 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2032 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2033 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2034 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2035 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2036 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2037 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2038 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2039 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2040 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2041 // is enabled. 2042 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2043 | Opts.NativeHalfArgsAndReturns; 2044 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2045 2046 // __declspec is enabled by default for the PS4 by the driver, and also 2047 // enabled for Microsoft Extensions or Borland Extensions, here. 2048 // 2049 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2050 // CUDA extension. However, it is required for supporting 2051 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2052 // been rewritten in terms of something more generic, remove the Opts.CUDA 2053 // term here. 2054 Opts.DeclSpecKeyword = 2055 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2056 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2057 2058 // For now, we only support local submodule visibility in C++ (because we 2059 // heavily depend on the ODR for merging redefinitions). 2060 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) 2061 Diags.Report(diag::err_drv_argument_not_allowed_with) 2062 << "-fmodules-local-submodule-visibility" << "C"; 2063 2064 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2065 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2066 .Case("target", LangOptions::ASMM_Target) 2067 .Case("no", LangOptions::ASMM_Off) 2068 .Case("yes", LangOptions::ASMM_On) 2069 .Default(255)) { 2070 default: 2071 Diags.Report(diag::err_drv_invalid_value) 2072 << "-faddress-space-map-mangling=" << A->getValue(); 2073 break; 2074 case LangOptions::ASMM_Target: 2075 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2076 break; 2077 case LangOptions::ASMM_On: 2078 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2079 break; 2080 case LangOptions::ASMM_Off: 2081 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2082 break; 2083 } 2084 } 2085 2086 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2087 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2088 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2089 A->getValue()) 2090 .Case("single", 2091 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2092 .Case("multiple", 2093 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2094 .Case("virtual", 2095 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2096 .Default(LangOptions::PPTMK_BestCase); 2097 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2098 Diags.Report(diag::err_drv_invalid_value) 2099 << "-fms-memptr-rep=" << A->getValue(); 2100 2101 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2102 } 2103 2104 // Check for MS default calling conventions being specified. 2105 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2106 LangOptions::DefaultCallingConvention DefaultCC = 2107 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2108 A->getValue()) 2109 .Case("cdecl", LangOptions::DCC_CDecl) 2110 .Case("fastcall", LangOptions::DCC_FastCall) 2111 .Case("stdcall", LangOptions::DCC_StdCall) 2112 .Case("vectorcall", LangOptions::DCC_VectorCall) 2113 .Default(LangOptions::DCC_None); 2114 if (DefaultCC == LangOptions::DCC_None) 2115 Diags.Report(diag::err_drv_invalid_value) 2116 << "-fdefault-calling-conv=" << A->getValue(); 2117 2118 llvm::Triple T(TargetOpts.Triple); 2119 llvm::Triple::ArchType Arch = T.getArch(); 2120 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2121 DefaultCC == LangOptions::DCC_StdCall) && 2122 Arch != llvm::Triple::x86; 2123 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2124 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2125 if (emitError) 2126 Diags.Report(diag::err_drv_argument_not_allowed_with) 2127 << A->getSpelling() << T.getTriple(); 2128 else 2129 Opts.setDefaultCallingConv(DefaultCC); 2130 } 2131 2132 // -mrtd option 2133 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2134 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2135 Diags.Report(diag::err_drv_argument_not_allowed_with) 2136 << A->getSpelling() << "-fdefault-calling-conv"; 2137 else { 2138 llvm::Triple T(TargetOpts.Triple); 2139 if (T.getArch() != llvm::Triple::x86) 2140 Diags.Report(diag::err_drv_argument_not_allowed_with) 2141 << A->getSpelling() << T.getTriple(); 2142 else 2143 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2144 } 2145 } 2146 2147 // Check if -fopenmp is specified. 2148 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2149 Opts.OpenMPUseTLS = 2150 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2151 Opts.OpenMPIsDevice = 2152 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2153 2154 if (Opts.OpenMP) { 2155 int Version = 2156 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2157 if (Version != 0) 2158 Opts.OpenMP = Version; 2159 // Provide diagnostic when a given target is not expected to be an OpenMP 2160 // device or host. 2161 if (!Opts.OpenMPIsDevice) { 2162 switch (T.getArch()) { 2163 default: 2164 break; 2165 // Add unsupported host targets here: 2166 case llvm::Triple::nvptx: 2167 case llvm::Triple::nvptx64: 2168 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2169 << TargetOpts.Triple; 2170 break; 2171 } 2172 } 2173 } 2174 2175 // Get the OpenMP target triples if any. 2176 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2177 2178 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2179 llvm::Triple TT(A->getValue(i)); 2180 2181 if (TT.getArch() == llvm::Triple::UnknownArch) 2182 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2183 else 2184 Opts.OMPTargetTriples.push_back(TT); 2185 } 2186 } 2187 2188 // Get OpenMP host file path if any and report if a non existent file is 2189 // found 2190 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2191 Opts.OMPHostIRFile = A->getValue(); 2192 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2193 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2194 << Opts.OMPHostIRFile; 2195 } 2196 2197 // Record whether the __DEPRECATED define was requested. 2198 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2199 OPT_fno_deprecated_macro, 2200 Opts.Deprecated); 2201 2202 // FIXME: Eliminate this dependency. 2203 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2204 OptSize = getOptimizationLevelSize(Args); 2205 Opts.Optimize = Opt != 0; 2206 Opts.OptimizeSize = OptSize != 0; 2207 2208 // This is the __NO_INLINE__ define, which just depends on things like the 2209 // optimization level and -fno-inline, not actually whether the backend has 2210 // inlining enabled. 2211 Opts.NoInlineDefine = !Opts.Optimize; 2212 if (Arg *InlineArg = Args.getLastArg( 2213 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2214 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2215 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2216 Opts.NoInlineDefine = true; 2217 2218 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2219 Args.hasArg(OPT_cl_fast_relaxed_math); 2220 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2221 Args.hasArg(OPT_cl_finite_math_only) || 2222 Args.hasArg(OPT_cl_fast_relaxed_math); 2223 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2224 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2225 Args.hasArg(OPT_cl_fast_relaxed_math); 2226 2227 Opts.RetainCommentsFromSystemHeaders = 2228 Args.hasArg(OPT_fretain_comments_from_system_headers); 2229 2230 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2231 switch (SSP) { 2232 default: 2233 Diags.Report(diag::err_drv_invalid_value) 2234 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2235 break; 2236 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2237 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2238 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2239 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2240 } 2241 2242 // Parse -fsanitize= arguments. 2243 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2244 Diags, Opts.Sanitize); 2245 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2246 Opts.SanitizeAddressFieldPadding = 2247 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2248 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2249 } 2250 2251 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2252 FileManager &FileMgr, 2253 DiagnosticsEngine &Diags) { 2254 using namespace options; 2255 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2256 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2257 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2258 Opts.TokenCache = A->getValue(); 2259 else 2260 Opts.TokenCache = Opts.ImplicitPTHInclude; 2261 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2262 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2263 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2264 2265 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2266 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2267 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2268 2269 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2270 StringRef Value(A->getValue()); 2271 size_t Comma = Value.find(','); 2272 unsigned Bytes = 0; 2273 unsigned EndOfLine = 0; 2274 2275 if (Comma == StringRef::npos || 2276 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2277 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2278 Diags.Report(diag::err_drv_preamble_format); 2279 else { 2280 Opts.PrecompiledPreambleBytes.first = Bytes; 2281 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2282 } 2283 } 2284 2285 // Add macros from the command line. 2286 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2287 if (A->getOption().matches(OPT_D)) 2288 Opts.addMacroDef(A->getValue()); 2289 else 2290 Opts.addMacroUndef(A->getValue()); 2291 } 2292 2293 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2294 2295 // Add the ordered list of -includes. 2296 for (const Arg *A : Args.filtered(OPT_include)) 2297 Opts.Includes.emplace_back(A->getValue()); 2298 2299 for (const Arg *A : Args.filtered(OPT_chain_include)) 2300 Opts.ChainedIncludes.emplace_back(A->getValue()); 2301 2302 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2303 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2304 2305 if (Split.second.empty()) { 2306 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2307 continue; 2308 } 2309 2310 Opts.addRemappedFile(Split.first, Split.second); 2311 } 2312 2313 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2314 StringRef Name = A->getValue(); 2315 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2316 .Case("libc++", ARCXX_libcxx) 2317 .Case("libstdc++", ARCXX_libstdcxx) 2318 .Case("none", ARCXX_nolib) 2319 .Default(~0U); 2320 if (Library == ~0U) 2321 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2322 else 2323 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2324 } 2325 } 2326 2327 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2328 ArgList &Args, 2329 frontend::ActionKind Action) { 2330 using namespace options; 2331 2332 switch (Action) { 2333 case frontend::ASTDeclList: 2334 case frontend::ASTDump: 2335 case frontend::ASTPrint: 2336 case frontend::ASTView: 2337 case frontend::EmitAssembly: 2338 case frontend::EmitBC: 2339 case frontend::EmitHTML: 2340 case frontend::EmitLLVM: 2341 case frontend::EmitLLVMOnly: 2342 case frontend::EmitCodeGenOnly: 2343 case frontend::EmitObj: 2344 case frontend::FixIt: 2345 case frontend::GenerateModule: 2346 case frontend::GenerateModuleInterface: 2347 case frontend::GeneratePCH: 2348 case frontend::GeneratePTH: 2349 case frontend::ParseSyntaxOnly: 2350 case frontend::ModuleFileInfo: 2351 case frontend::VerifyPCH: 2352 case frontend::PluginAction: 2353 case frontend::PrintDeclContext: 2354 case frontend::RewriteObjC: 2355 case frontend::RewriteTest: 2356 case frontend::RunAnalysis: 2357 case frontend::MigrateSource: 2358 Opts.ShowCPP = 0; 2359 break; 2360 2361 case frontend::DumpRawTokens: 2362 case frontend::DumpTokens: 2363 case frontend::InitOnly: 2364 case frontend::PrintPreamble: 2365 case frontend::PrintPreprocessedInput: 2366 case frontend::RewriteMacros: 2367 case frontend::RunPreprocessorOnly: 2368 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2369 break; 2370 } 2371 2372 Opts.ShowComments = Args.hasArg(OPT_C); 2373 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2374 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2375 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2376 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2377 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2378 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2379 } 2380 2381 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2382 DiagnosticsEngine &Diags) { 2383 using namespace options; 2384 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2385 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2386 StringRef Value = A->getValue(); 2387 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2388 .Case("default", llvm::EABI::Default) 2389 .Case("4", llvm::EABI::EABI4) 2390 .Case("5", llvm::EABI::EABI5) 2391 .Case("gnu", llvm::EABI::GNU) 2392 .Default(llvm::EABI::Unknown); 2393 if (EABIVersion == llvm::EABI::Unknown) 2394 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2395 << Value; 2396 else 2397 Opts.EABIVersion = Value; 2398 } 2399 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2400 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2401 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2402 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2403 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2404 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2405 // Use the default target triple if unspecified. 2406 if (Opts.Triple.empty()) 2407 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2408 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2409 } 2410 2411 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2412 const char *const *ArgBegin, 2413 const char *const *ArgEnd, 2414 DiagnosticsEngine &Diags) { 2415 bool Success = true; 2416 2417 // Parse the arguments. 2418 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2419 const unsigned IncludedFlagsBitmask = options::CC1Option; 2420 unsigned MissingArgIndex, MissingArgCount; 2421 InputArgList Args = 2422 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2423 MissingArgCount, IncludedFlagsBitmask); 2424 LangOptions &LangOpts = *Res.getLangOpts(); 2425 2426 // Check for missing argument error. 2427 if (MissingArgCount) { 2428 Diags.Report(diag::err_drv_missing_argument) 2429 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2430 Success = false; 2431 } 2432 2433 // Issue errors on unknown arguments. 2434 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2435 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2436 Success = false; 2437 } 2438 2439 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2440 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2441 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2442 Success &= 2443 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2444 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2445 ParseCommentArgs(LangOpts.CommentOpts, Args); 2446 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2447 // FIXME: We shouldn't have to pass the DashX option around here 2448 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2449 LangOpts.IsHeaderFile); 2450 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2451 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2452 Res.getTargetOpts()); 2453 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args); 2454 if (DashX == IK_AST || DashX == IK_LLVM_IR) { 2455 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2456 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2457 // what the input type is. 2458 if (Args.hasArg(OPT_fobjc_arc)) 2459 LangOpts.ObjCAutoRefCount = 1; 2460 // PIClevel and PIELevel are needed during code generation and this should be 2461 // set regardless of the input type. 2462 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2463 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2464 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2465 Diags, LangOpts.Sanitize); 2466 } else { 2467 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2468 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2469 Res.getPreprocessorOpts(), Diags); 2470 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2471 LangOpts.ObjCExceptions = 1; 2472 } 2473 2474 if (LangOpts.CUDA) { 2475 // During CUDA device-side compilation, the aux triple is the 2476 // triple used for host compilation. 2477 if (LangOpts.CUDAIsDevice) 2478 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2479 2480 // Set default FP_CONTRACT to FAST. 2481 if (!Args.hasArg(OPT_ffp_contract)) 2482 Res.getCodeGenOpts().setFPContractMode(CodeGenOptions::FPC_Fast); 2483 } 2484 2485 // FIXME: Override value name discarding when asan or msan is used because the 2486 // backend passes depend on the name of the alloca in order to print out 2487 // names. 2488 Res.getCodeGenOpts().DiscardValueNames &= 2489 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2490 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2491 2492 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2493 // PCH file and find the original header name. Remove the need to do that in 2494 // ParsePreprocessorArgs and remove the FileManager 2495 // parameters from the function and the "FileManager.h" #include. 2496 FileManager FileMgr(Res.getFileSystemOpts()); 2497 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags); 2498 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2499 Res.getFrontendOpts().ProgramAction); 2500 2501 // Turn on -Wspir-compat for SPIR target. 2502 llvm::Triple T(Res.getTargetOpts().Triple); 2503 auto Arch = T.getArch(); 2504 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2505 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2506 } 2507 return Success; 2508 } 2509 2510 std::string CompilerInvocation::getModuleHash() const { 2511 // Note: For QoI reasons, the things we use as a hash here should all be 2512 // dumped via the -module-info flag. 2513 using llvm::hash_code; 2514 using llvm::hash_value; 2515 using llvm::hash_combine; 2516 2517 // Start the signature with the compiler version. 2518 // FIXME: We'd rather use something more cryptographically sound than 2519 // CityHash, but this will do for now. 2520 hash_code code = hash_value(getClangFullRepositoryVersion()); 2521 2522 // Extend the signature with the language options 2523 #define LANGOPT(Name, Bits, Default, Description) \ 2524 code = hash_combine(code, LangOpts->Name); 2525 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2526 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2527 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2528 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2529 #include "clang/Basic/LangOptions.def" 2530 2531 for (StringRef Feature : LangOpts->ModuleFeatures) 2532 code = hash_combine(code, Feature); 2533 2534 // Extend the signature with the target options. 2535 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2536 TargetOpts->ABI); 2537 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2538 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2539 2540 // Extend the signature with preprocessor options. 2541 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2542 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2543 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2544 2545 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2546 I = getPreprocessorOpts().Macros.begin(), 2547 IEnd = getPreprocessorOpts().Macros.end(); 2548 I != IEnd; ++I) { 2549 // If we're supposed to ignore this macro for the purposes of modules, 2550 // don't put it into the hash. 2551 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2552 // Check whether we're ignoring this macro. 2553 StringRef MacroDef = I->first; 2554 if (hsOpts.ModulesIgnoreMacros.count( 2555 llvm::CachedHashString(MacroDef.split('=').first))) 2556 continue; 2557 } 2558 2559 code = hash_combine(code, I->first, I->second); 2560 } 2561 2562 // Extend the signature with the sysroot and other header search options. 2563 code = hash_combine(code, hsOpts.Sysroot, 2564 hsOpts.ModuleFormat, 2565 hsOpts.UseDebugInfo, 2566 hsOpts.UseBuiltinIncludes, 2567 hsOpts.UseStandardSystemIncludes, 2568 hsOpts.UseStandardCXXIncludes, 2569 hsOpts.UseLibcxx, 2570 hsOpts.ModulesValidateDiagnosticOptions); 2571 code = hash_combine(code, hsOpts.ResourceDir); 2572 2573 // Extend the signature with the user build path. 2574 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2575 2576 // Extend the signature with the module file extensions. 2577 const FrontendOptions &frontendOpts = getFrontendOpts(); 2578 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2579 code = ext->hashExtension(code); 2580 } 2581 2582 // Darwin-specific hack: if we have a sysroot, use the contents and 2583 // modification time of 2584 // $sysroot/System/Library/CoreServices/SystemVersion.plist 2585 // as part of the module hash. 2586 if (!hsOpts.Sysroot.empty()) { 2587 SmallString<128> systemVersionFile; 2588 systemVersionFile += hsOpts.Sysroot; 2589 llvm::sys::path::append(systemVersionFile, "System"); 2590 llvm::sys::path::append(systemVersionFile, "Library"); 2591 llvm::sys::path::append(systemVersionFile, "CoreServices"); 2592 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 2593 2594 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 2595 llvm::MemoryBuffer::getFile(systemVersionFile); 2596 if (buffer) { 2597 code = hash_combine(code, buffer.get()->getBuffer()); 2598 2599 struct stat statBuf; 2600 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 2601 code = hash_combine(code, statBuf.st_mtime); 2602 } 2603 } 2604 2605 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2606 } 2607 2608 namespace clang { 2609 2610 template<typename IntTy> 2611 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2612 IntTy Default, 2613 DiagnosticsEngine *Diags) { 2614 IntTy Res = Default; 2615 if (Arg *A = Args.getLastArg(Id)) { 2616 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2617 if (Diags) 2618 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2619 << A->getValue(); 2620 } 2621 } 2622 return Res; 2623 } 2624 2625 2626 // Declared in clang/Frontend/Utils.h. 2627 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2628 DiagnosticsEngine *Diags) { 2629 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2630 } 2631 2632 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2633 uint64_t Default, 2634 DiagnosticsEngine *Diags) { 2635 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2636 } 2637 2638 void BuryPointer(const void *Ptr) { 2639 // This function may be called only a small fixed amount of times per each 2640 // invocation, otherwise we do actually have a leak which we want to report. 2641 // If this function is called more than kGraveYardMaxSize times, the pointers 2642 // will not be properly buried and a leak detector will report a leak, which 2643 // is what we want in such case. 2644 static const size_t kGraveYardMaxSize = 16; 2645 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2646 static std::atomic<unsigned> GraveYardSize; 2647 unsigned Idx = GraveYardSize++; 2648 if (Idx >= kGraveYardMaxSize) 2649 return; 2650 GraveYard[Idx] = Ptr; 2651 } 2652 2653 IntrusiveRefCntPtr<vfs::FileSystem> 2654 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2655 DiagnosticsEngine &Diags) { 2656 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2657 return vfs::getRealFileSystem(); 2658 2659 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2660 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2661 // earlier vfs files are on the bottom 2662 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2663 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2664 llvm::MemoryBuffer::getFile(File); 2665 if (!Buffer) { 2666 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2667 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2668 } 2669 2670 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2671 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2672 if (!FS.get()) { 2673 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2674 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2675 } 2676 Overlay->pushOverlay(FS); 2677 } 2678 return Overlay; 2679 } 2680 } // end namespace clang 2681