1 //===--- CompilerInvocation.cpp -------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Frontend/CompilerInvocation.h" 11 #include "TestModuleFileExtension.h" 12 #include "clang/Basic/Builtins.h" 13 #include "clang/Basic/FileManager.h" 14 #include "clang/Basic/Version.h" 15 #include "clang/Config/config.h" 16 #include "clang/Driver/DriverDiagnostic.h" 17 #include "clang/Driver/Options.h" 18 #include "clang/Driver/Util.h" 19 #include "clang/Frontend/FrontendDiagnostic.h" 20 #include "clang/Frontend/LangStandard.h" 21 #include "clang/Frontend/Utils.h" 22 #include "clang/Lex/HeaderSearchOptions.h" 23 #include "clang/Lex/PreprocessorOptions.h" 24 #include "clang/Serialization/ASTReader.h" 25 #include "clang/Serialization/ModuleFileExtension.h" 26 #include "llvm/ADT/Hashing.h" 27 #include "llvm/ADT/STLExtras.h" 28 #include "llvm/ADT/SmallVector.h" 29 #include "llvm/ADT/StringExtras.h" 30 #include "llvm/ADT/StringSwitch.h" 31 #include "llvm/ADT/Triple.h" 32 #include "llvm/Linker/Linker.h" 33 #include "llvm/Option/Arg.h" 34 #include "llvm/Option/ArgList.h" 35 #include "llvm/Option/OptTable.h" 36 #include "llvm/Option/Option.h" 37 #include "llvm/ProfileData/InstrProfReader.h" 38 #include "llvm/Support/CodeGen.h" 39 #include "llvm/Support/ErrorHandling.h" 40 #include "llvm/Support/FileSystem.h" 41 #include "llvm/Support/Host.h" 42 #include "llvm/Support/Path.h" 43 #include "llvm/Support/Process.h" 44 #include "llvm/Target/TargetOptions.h" 45 #include "llvm/Support/ScopedPrinter.h" 46 #include <atomic> 47 #include <memory> 48 #include <sys/stat.h> 49 #include <system_error> 50 using namespace clang; 51 52 //===----------------------------------------------------------------------===// 53 // Initialization. 54 //===----------------------------------------------------------------------===// 55 56 CompilerInvocationBase::CompilerInvocationBase() 57 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 58 DiagnosticOpts(new DiagnosticOptions()), 59 HeaderSearchOpts(new HeaderSearchOptions()), 60 PreprocessorOpts(new PreprocessorOptions()) {} 61 62 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 63 : RefCountedBase<CompilerInvocation>(), 64 LangOpts(new LangOptions(*X.getLangOpts())), 65 TargetOpts(new TargetOptions(X.getTargetOpts())), 66 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 67 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 68 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 69 70 CompilerInvocationBase::~CompilerInvocationBase() {} 71 72 //===----------------------------------------------------------------------===// 73 // Deserialization (from args) 74 //===----------------------------------------------------------------------===// 75 76 using namespace clang::driver; 77 using namespace clang::driver::options; 78 using namespace llvm::opt; 79 80 // 81 82 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 83 DiagnosticsEngine &Diags) { 84 unsigned DefaultOpt = 0; 85 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 86 DefaultOpt = 2; 87 88 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 89 if (A->getOption().matches(options::OPT_O0)) 90 return 0; 91 92 if (A->getOption().matches(options::OPT_Ofast)) 93 return 3; 94 95 assert (A->getOption().matches(options::OPT_O)); 96 97 StringRef S(A->getValue()); 98 if (S == "s" || S == "z" || S.empty()) 99 return 2; 100 101 if (S == "g") 102 return 1; 103 104 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 105 } 106 107 return DefaultOpt; 108 } 109 110 static unsigned getOptimizationLevelSize(ArgList &Args) { 111 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 112 if (A->getOption().matches(options::OPT_O)) { 113 switch (A->getValue()[0]) { 114 default: 115 return 0; 116 case 's': 117 return 1; 118 case 'z': 119 return 2; 120 } 121 } 122 } 123 return 0; 124 } 125 126 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 127 OptSpecifier GroupWithValue, 128 std::vector<std::string> &Diagnostics) { 129 for (Arg *A : Args.filtered(Group)) { 130 if (A->getOption().getKind() == Option::FlagClass) { 131 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 132 // its name (minus the "W" or "R" at the beginning) to the warning list. 133 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 134 } else if (A->getOption().matches(GroupWithValue)) { 135 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 136 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 137 } else { 138 // Otherwise, add its value (for OPT_W_Joined and similar). 139 for (const char *Arg : A->getValues()) 140 Diagnostics.emplace_back(Arg); 141 } 142 } 143 } 144 145 static void getAllNoBuiltinFuncValues(ArgList &Args, 146 std::vector<std::string> &Funcs) { 147 SmallVector<const char *, 8> Values; 148 for (const auto &Arg : Args) { 149 const Option &O = Arg->getOption(); 150 if (O.matches(options::OPT_fno_builtin_)) { 151 const char *FuncName = Arg->getValue(); 152 if (Builtin::Context::isBuiltinFunc(FuncName)) 153 Values.push_back(FuncName); 154 } 155 } 156 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 157 } 158 159 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 160 DiagnosticsEngine &Diags) { 161 using namespace options; 162 bool Success = true; 163 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 164 StringRef Name = A->getValue(); 165 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 166 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 167 .Case(CMDFLAG, NAME##Model) 168 #include "clang/StaticAnalyzer/Core/Analyses.def" 169 .Default(NumStores); 170 if (Value == NumStores) { 171 Diags.Report(diag::err_drv_invalid_value) 172 << A->getAsString(Args) << Name; 173 Success = false; 174 } else { 175 Opts.AnalysisStoreOpt = Value; 176 } 177 } 178 179 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 180 StringRef Name = A->getValue(); 181 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 182 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 183 .Case(CMDFLAG, NAME##Model) 184 #include "clang/StaticAnalyzer/Core/Analyses.def" 185 .Default(NumConstraints); 186 if (Value == NumConstraints) { 187 Diags.Report(diag::err_drv_invalid_value) 188 << A->getAsString(Args) << Name; 189 Success = false; 190 } else { 191 Opts.AnalysisConstraintsOpt = Value; 192 } 193 } 194 195 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 196 StringRef Name = A->getValue(); 197 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 198 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 199 .Case(CMDFLAG, PD_##NAME) 200 #include "clang/StaticAnalyzer/Core/Analyses.def" 201 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 202 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 203 Diags.Report(diag::err_drv_invalid_value) 204 << A->getAsString(Args) << Name; 205 Success = false; 206 } else { 207 Opts.AnalysisDiagOpt = Value; 208 } 209 } 210 211 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 212 StringRef Name = A->getValue(); 213 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 214 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 215 .Case(CMDFLAG, NAME) 216 #include "clang/StaticAnalyzer/Core/Analyses.def" 217 .Default(NumPurgeModes); 218 if (Value == NumPurgeModes) { 219 Diags.Report(diag::err_drv_invalid_value) 220 << A->getAsString(Args) << Name; 221 Success = false; 222 } else { 223 Opts.AnalysisPurgeOpt = Value; 224 } 225 } 226 227 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 228 StringRef Name = A->getValue(); 229 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 230 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 231 .Case(CMDFLAG, NAME) 232 #include "clang/StaticAnalyzer/Core/Analyses.def" 233 .Default(NumInliningModes); 234 if (Value == NumInliningModes) { 235 Diags.Report(diag::err_drv_invalid_value) 236 << A->getAsString(Args) << Name; 237 Success = false; 238 } else { 239 Opts.InliningMode = Value; 240 } 241 } 242 243 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 244 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 245 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 246 247 Opts.visualizeExplodedGraphWithGraphViz = 248 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 249 Opts.visualizeExplodedGraphWithUbiGraph = 250 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 251 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 252 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 253 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 254 Opts.AnalyzeNestedBlocks = 255 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 256 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 257 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 258 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 259 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 260 Opts.maxBlockVisitOnPath = 261 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 262 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 263 Opts.InlineMaxStackDepth = 264 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 265 Opts.InlineMaxStackDepth, Diags); 266 267 Opts.CheckersControlList.clear(); 268 for (const Arg *A : 269 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 270 A->claim(); 271 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 272 // We can have a list of comma separated checker names, e.g: 273 // '-analyzer-checker=cocoa,unix' 274 StringRef checkerList = A->getValue(); 275 SmallVector<StringRef, 4> checkers; 276 checkerList.split(checkers, ","); 277 for (StringRef checker : checkers) 278 Opts.CheckersControlList.emplace_back(checker, enable); 279 } 280 281 // Go through the analyzer configuration options. 282 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 283 A->claim(); 284 // We can have a list of comma separated config names, e.g: 285 // '-analyzer-config key1=val1,key2=val2' 286 StringRef configList = A->getValue(); 287 SmallVector<StringRef, 4> configVals; 288 configList.split(configVals, ","); 289 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 290 StringRef key, val; 291 std::tie(key, val) = configVals[i].split("="); 292 if (val.empty()) { 293 Diags.Report(SourceLocation(), 294 diag::err_analyzer_config_no_value) << configVals[i]; 295 Success = false; 296 break; 297 } 298 if (val.find('=') != StringRef::npos) { 299 Diags.Report(SourceLocation(), 300 diag::err_analyzer_config_multiple_values) 301 << configVals[i]; 302 Success = false; 303 break; 304 } 305 Opts.Config[key] = val; 306 } 307 } 308 309 return Success; 310 } 311 312 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 313 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 314 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 315 return true; 316 } 317 318 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 319 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 320 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 321 } 322 323 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 324 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 325 StringRef Value = A->getValue(); 326 if (Value == "small" || Value == "kernel" || Value == "medium" || 327 Value == "large") 328 return Value; 329 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 330 } 331 return "default"; 332 } 333 334 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 335 /// It returns a pointer to the newly generated Regex instance. 336 static std::shared_ptr<llvm::Regex> 337 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 338 Arg *RpassArg) { 339 StringRef Val = RpassArg->getValue(); 340 std::string RegexError; 341 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 342 if (!Pattern->isValid(RegexError)) { 343 Diags.Report(diag::err_drv_optimization_remark_pattern) 344 << RegexError << RpassArg->getAsString(Args); 345 Pattern.reset(); 346 } 347 return Pattern; 348 } 349 350 static bool parseDiagnosticLevelMask(StringRef FlagName, 351 const std::vector<std::string> &Levels, 352 DiagnosticsEngine *Diags, 353 DiagnosticLevelMask &M) { 354 bool Success = true; 355 for (const auto &Level : Levels) { 356 DiagnosticLevelMask const PM = 357 llvm::StringSwitch<DiagnosticLevelMask>(Level) 358 .Case("note", DiagnosticLevelMask::Note) 359 .Case("remark", DiagnosticLevelMask::Remark) 360 .Case("warning", DiagnosticLevelMask::Warning) 361 .Case("error", DiagnosticLevelMask::Error) 362 .Default(DiagnosticLevelMask::None); 363 if (PM == DiagnosticLevelMask::None) { 364 Success = false; 365 if (Diags) 366 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 367 } 368 M = M | PM; 369 } 370 return Success; 371 } 372 373 static void parseSanitizerKinds(StringRef FlagName, 374 const std::vector<std::string> &Sanitizers, 375 DiagnosticsEngine &Diags, SanitizerSet &S) { 376 for (const auto &Sanitizer : Sanitizers) { 377 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 378 if (K == 0) 379 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 380 else 381 S.set(K, true); 382 } 383 } 384 385 // Set the profile kind for fprofile-instrument. 386 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 387 DiagnosticsEngine &Diags) { 388 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 389 if (A == nullptr) 390 return; 391 StringRef S = A->getValue(); 392 unsigned I = llvm::StringSwitch<unsigned>(S) 393 .Case("none", CodeGenOptions::ProfileNone) 394 .Case("clang", CodeGenOptions::ProfileClangInstr) 395 .Case("llvm", CodeGenOptions::ProfileIRInstr) 396 .Default(~0U); 397 if (I == ~0U) { 398 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 399 << S; 400 return; 401 } 402 CodeGenOptions::ProfileInstrKind Instrumentor = 403 static_cast<CodeGenOptions::ProfileInstrKind>(I); 404 Opts.setProfileInstr(Instrumentor); 405 } 406 407 // Set the profile kind using fprofile-instrument-use-path. 408 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 409 const Twine &ProfileName) { 410 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 411 // In error, return silently and let Clang PGOUse report the error message. 412 if (auto E = ReaderOrErr.takeError()) { 413 llvm::consumeError(std::move(E)); 414 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 415 return; 416 } 417 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 418 std::move(ReaderOrErr.get()); 419 if (PGOReader->isIRLevelProfile()) 420 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 421 else 422 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 423 } 424 425 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 426 DiagnosticsEngine &Diags, 427 const TargetOptions &TargetOpts) { 428 using namespace options; 429 bool Success = true; 430 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 431 432 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 433 // TODO: This could be done in Driver 434 unsigned MaxOptLevel = 3; 435 if (OptimizationLevel > MaxOptLevel) { 436 // If the optimization level is not supported, fall back on the default 437 // optimization 438 Diags.Report(diag::warn_drv_optimization_value) 439 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 440 OptimizationLevel = MaxOptLevel; 441 } 442 Opts.OptimizationLevel = OptimizationLevel; 443 444 // At O0 we want to fully disable inlining outside of cases marked with 445 // 'alwaysinline' that are required for correctness. 446 Opts.setInlining((Opts.OptimizationLevel == 0) 447 ? CodeGenOptions::OnlyAlwaysInlining 448 : CodeGenOptions::NormalInlining); 449 // Explicit inlining flags can disable some or all inlining even at 450 // optimization levels above zero. 451 if (Arg *InlineArg = Args.getLastArg( 452 options::OPT_finline_functions, options::OPT_finline_hint_functions, 453 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 454 if (Opts.OptimizationLevel > 0) { 455 const Option &InlineOpt = InlineArg->getOption(); 456 if (InlineOpt.matches(options::OPT_finline_functions)) 457 Opts.setInlining(CodeGenOptions::NormalInlining); 458 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 459 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 460 else 461 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 462 } 463 } 464 465 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 466 StringRef Name = A->getValue(); 467 if (Name == "Accelerate") 468 Opts.setVecLib(CodeGenOptions::Accelerate); 469 else if (Name == "SVML") 470 Opts.setVecLib(CodeGenOptions::SVML); 471 else if (Name == "none") 472 Opts.setVecLib(CodeGenOptions::NoLibrary); 473 else 474 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 475 } 476 477 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 478 unsigned Val = 479 llvm::StringSwitch<unsigned>(A->getValue()) 480 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 481 .Case("limited", codegenoptions::LimitedDebugInfo) 482 .Case("standalone", codegenoptions::FullDebugInfo) 483 .Default(~0U); 484 if (Val == ~0U) 485 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 486 << A->getValue(); 487 else 488 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 489 } 490 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 491 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 492 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 493 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 494 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 495 .Default(~0U); 496 if (Val == ~0U) 497 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 498 << A->getValue(); 499 else 500 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 501 } 502 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 503 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 504 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 505 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 506 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 507 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 508 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 509 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 510 Opts.DebugExplicitImport = Triple.isPS4CPU(); 511 512 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 513 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 514 515 if (const Arg *A = 516 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 517 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 518 519 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 520 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 521 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 522 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 523 OPT_fuse_register_sized_bitfield_access); 524 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 525 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 526 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 527 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 528 Opts.NoCommon = Args.hasArg(OPT_fno_common); 529 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 530 Opts.OptimizeSize = getOptimizationLevelSize(Args); 531 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 532 Args.hasArg(OPT_ffreestanding)); 533 if (Opts.SimplifyLibCalls) 534 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 535 Opts.UnrollLoops = 536 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 537 (Opts.OptimizationLevel > 1)); 538 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 539 540 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 541 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 542 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 543 544 setPGOInstrumentor(Opts, Args, Diags); 545 Opts.InstrProfileOutput = 546 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 547 Opts.ProfileInstrumentUsePath = 548 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 549 if (!Opts.ProfileInstrumentUsePath.empty()) 550 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 551 552 Opts.CoverageMapping = 553 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 554 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 555 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 556 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 557 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 558 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 559 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 560 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 561 Opts.CodeModel = getCodeModel(Args, Diags); 562 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 563 Opts.DisableFPElim = 564 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 565 Opts.DisableFree = Args.hasArg(OPT_disable_free); 566 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 567 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 568 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 569 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 570 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 571 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 572 Args.hasArg(OPT_cl_finite_math_only) || 573 Args.hasArg(OPT_cl_fast_relaxed_math)); 574 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 575 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 576 Args.hasArg(OPT_cl_finite_math_only) || 577 Args.hasArg(OPT_cl_fast_relaxed_math)); 578 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 579 Args.hasArg(OPT_cl_no_signed_zeros)); 580 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 581 Opts.CorrectlyRoundedDivSqrt = 582 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 583 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 584 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 585 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 586 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 587 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 588 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 589 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 590 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 591 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 592 Opts.IncrementalLinkerCompatible = 593 Args.hasArg(OPT_mincremental_linker_compatible); 594 Opts.PIECopyRelocations = 595 Args.hasArg(OPT_mpie_copy_relocations); 596 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 597 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 598 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 599 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 600 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 601 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 602 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 603 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 604 Args.hasArg(OPT_cl_fast_relaxed_math); 605 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 606 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 607 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 608 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 609 Diags.Report(diag::err_drv_invalid_value) 610 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 611 << Opts.ThreadModel; 612 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 613 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 614 615 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 616 OPT_fno_function_sections, false); 617 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 618 OPT_fno_data_sections, false); 619 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 620 OPT_fno_unique_section_names, true); 621 622 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 623 624 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 625 626 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 627 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ); 628 Opts.EmitSummaryIndex = A && A->containsValue("thin"); 629 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 630 if (IK != IK_LLVM_IR) 631 Diags.Report(diag::err_drv_argument_only_allowed_with) 632 << A->getAsString(Args) << "-x ir"; 633 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 634 } 635 636 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 637 638 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 639 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 640 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 641 642 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 643 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 644 645 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 646 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 647 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 648 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 649 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 650 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 651 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 652 Opts.CoverageNoFunctionNamesInData = 653 Args.hasArg(OPT_coverage_no_function_names_in_data); 654 Opts.CoverageExitBlockBeforeBody = 655 Args.hasArg(OPT_coverage_exit_block_before_body); 656 if (Args.hasArg(OPT_coverage_version_EQ)) { 657 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 658 if (CoverageVersion.size() != 4) { 659 Diags.Report(diag::err_drv_invalid_value) 660 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 661 << CoverageVersion; 662 } else { 663 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 664 } 665 } 666 } 667 // Handle -fembed-bitcode option. 668 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 669 StringRef Name = A->getValue(); 670 unsigned Model = llvm::StringSwitch<unsigned>(Name) 671 .Case("off", CodeGenOptions::Embed_Off) 672 .Case("all", CodeGenOptions::Embed_All) 673 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 674 .Case("marker", CodeGenOptions::Embed_Marker) 675 .Default(~0U); 676 if (Model == ~0U) { 677 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 678 Success = false; 679 } else 680 Opts.setEmbedBitcode( 681 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 682 } 683 // FIXME: For backend options that are not yet recorded as function 684 // attributes in the IR, keep track of them so we can embed them in a 685 // separate data section and use them when building the bitcode. 686 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 687 for (const auto &A : Args) { 688 // Do not encode output and input. 689 if (A->getOption().getID() == options::OPT_o || 690 A->getOption().getID() == options::OPT_INPUT || 691 A->getOption().getID() == options::OPT_x || 692 A->getOption().getID() == options::OPT_fembed_bitcode || 693 (A->getOption().getGroup().isValid() && 694 A->getOption().getGroup().getID() == options::OPT_W_Group)) 695 continue; 696 ArgStringList ASL; 697 A->render(Args, ASL); 698 for (const auto &arg : ASL) { 699 StringRef ArgStr(arg); 700 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 701 // using \00 to seperate each commandline options. 702 Opts.CmdArgs.push_back('\0'); 703 } 704 } 705 } 706 707 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 708 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 709 Opts.XRayInstructionThreshold = 710 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_, 200, Diags); 711 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 712 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 713 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 714 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 715 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 716 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 717 unsigned LinkFlags = llvm::Linker::Flags::None; 718 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) 719 LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded | 720 llvm::Linker::Flags::InternalizeLinkedSymbols; 721 Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue())); 722 } 723 Opts.SanitizeCoverageType = 724 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 725 Opts.SanitizeCoverageIndirectCalls = 726 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 727 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 728 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 729 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 730 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 731 Opts.SanitizeCoverage8bitCounters = 732 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 733 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 734 Opts.SanitizeCoverageTracePCGuard = 735 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 736 Opts.SanitizeMemoryTrackOrigins = 737 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 738 Opts.SanitizeMemoryUseAfterDtor = 739 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 740 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 741 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 742 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 743 OPT_fno_sanitize_address_use_after_scope)) { 744 Opts.SanitizeAddressUseAfterScope = 745 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 746 } 747 Opts.SSPBufferSize = 748 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 749 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 750 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 751 StringRef Val = A->getValue(); 752 unsigned StackAlignment = Opts.StackAlignment; 753 Val.getAsInteger(10, StackAlignment); 754 Opts.StackAlignment = StackAlignment; 755 } 756 757 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 758 StringRef Val = A->getValue(); 759 unsigned StackProbeSize = Opts.StackProbeSize; 760 Val.getAsInteger(0, StackProbeSize); 761 Opts.StackProbeSize = StackProbeSize; 762 } 763 764 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 765 StringRef Name = A->getValue(); 766 unsigned Method = llvm::StringSwitch<unsigned>(Name) 767 .Case("legacy", CodeGenOptions::Legacy) 768 .Case("non-legacy", CodeGenOptions::NonLegacy) 769 .Case("mixed", CodeGenOptions::Mixed) 770 .Default(~0U); 771 if (Method == ~0U) { 772 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 773 Success = false; 774 } else { 775 Opts.setObjCDispatchMethod( 776 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 777 } 778 } 779 780 Opts.EmulatedTLS = 781 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 782 783 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 784 StringRef Name = A->getValue(); 785 unsigned Model = llvm::StringSwitch<unsigned>(Name) 786 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 787 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 788 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 789 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 790 .Default(~0U); 791 if (Model == ~0U) { 792 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 793 Success = false; 794 } else { 795 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 796 } 797 } 798 799 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 800 StringRef Val = A->getValue(); 801 if (Val == "fast") 802 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 803 else if (Val == "on") 804 Opts.setFPContractMode(CodeGenOptions::FPC_On); 805 else if (Val == "off") 806 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 807 else 808 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 809 } 810 811 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 812 StringRef Val = A->getValue(); 813 if (Val == "ieee") 814 Opts.FPDenormalMode = "ieee"; 815 else if (Val == "preserve-sign") 816 Opts.FPDenormalMode = "preserve-sign"; 817 else if (Val == "positive-zero") 818 Opts.FPDenormalMode = "positive-zero"; 819 else 820 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 821 } 822 823 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 824 if (A->getOption().matches(OPT_fpcc_struct_return)) { 825 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 826 } else { 827 assert(A->getOption().matches(OPT_freg_struct_return)); 828 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 829 } 830 } 831 832 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 833 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 834 bool NeedLocTracking = false; 835 836 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 837 if (!Opts.OptRecordFile.empty()) 838 NeedLocTracking = true; 839 840 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 841 Opts.OptimizationRemarkPattern = 842 GenerateOptimizationRemarkRegex(Diags, Args, A); 843 NeedLocTracking = true; 844 } 845 846 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 847 Opts.OptimizationRemarkMissedPattern = 848 GenerateOptimizationRemarkRegex(Diags, Args, A); 849 NeedLocTracking = true; 850 } 851 852 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 853 Opts.OptimizationRemarkAnalysisPattern = 854 GenerateOptimizationRemarkRegex(Diags, Args, A); 855 NeedLocTracking = true; 856 } 857 858 Opts.DiagnosticsWithHotness = 859 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 860 if (Opts.DiagnosticsWithHotness && 861 Opts.getProfileUse() == CodeGenOptions::ProfileNone) 862 Diags.Report(diag::warn_drv_fdiagnostics_show_hotness_requires_pgo); 863 864 // If the user requested to use a sample profile for PGO, then the 865 // backend will need to track source location information so the profile 866 // can be incorporated into the IR. 867 if (!Opts.SampleProfileFile.empty()) 868 NeedLocTracking = true; 869 870 // If the user requested a flag that requires source locations available in 871 // the backend, make sure that the backend tracks source location information. 872 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 873 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 874 875 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 876 877 // Parse -fsanitize-recover= arguments. 878 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 879 parseSanitizerKinds("-fsanitize-recover=", 880 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 881 Opts.SanitizeRecover); 882 parseSanitizerKinds("-fsanitize-trap=", 883 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 884 Opts.SanitizeTrap); 885 886 Opts.CudaGpuBinaryFileNames = 887 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 888 889 Opts.Backchain = Args.hasArg(OPT_mbackchain); 890 891 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 892 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 893 894 return Success; 895 } 896 897 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 898 ArgList &Args) { 899 using namespace options; 900 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 901 Opts.Targets = Args.getAllArgValues(OPT_MT); 902 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 903 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 904 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 905 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 906 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 907 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 908 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 909 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 910 Opts.ModuleDependencyOutputDir = 911 Args.getLastArgValue(OPT_module_dependency_dir); 912 if (Args.hasArg(OPT_MV)) 913 Opts.OutputFormat = DependencyOutputFormat::NMake; 914 // Add sanitizer blacklists as extra dependencies. 915 // They won't be discovered by the regular preprocessor, so 916 // we let make / ninja to know about this implicit dependency. 917 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 918 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 919 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 920 ModuleFiles.end()); 921 } 922 923 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 924 // Color diagnostics default to auto ("on" if terminal supports) in the driver 925 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 926 // Support both clang's -f[no-]color-diagnostics and gcc's 927 // -f[no-]diagnostics-colors[=never|always|auto]. 928 enum { 929 Colors_On, 930 Colors_Off, 931 Colors_Auto 932 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 933 for (Arg *A : Args) { 934 const Option &O = A->getOption(); 935 if (O.matches(options::OPT_fcolor_diagnostics) || 936 O.matches(options::OPT_fdiagnostics_color)) { 937 ShowColors = Colors_On; 938 } else if (O.matches(options::OPT_fno_color_diagnostics) || 939 O.matches(options::OPT_fno_diagnostics_color)) { 940 ShowColors = Colors_Off; 941 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 942 StringRef Value(A->getValue()); 943 if (Value == "always") 944 ShowColors = Colors_On; 945 else if (Value == "never") 946 ShowColors = Colors_Off; 947 else if (Value == "auto") 948 ShowColors = Colors_Auto; 949 } 950 } 951 return ShowColors == Colors_On || 952 (ShowColors == Colors_Auto && 953 llvm::sys::Process::StandardErrHasColors()); 954 } 955 956 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 957 DiagnosticsEngine *Diags, 958 bool DefaultDiagColor, bool DefaultShowOpt) { 959 using namespace options; 960 bool Success = true; 961 962 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 963 if (Arg *A = 964 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 965 Opts.DiagnosticSerializationFile = A->getValue(); 966 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 967 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 968 Opts.Pedantic = Args.hasArg(OPT_pedantic); 969 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 970 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 971 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 972 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 973 OPT_fno_show_column, 974 /*Default=*/true); 975 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 976 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 977 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 978 Opts.ShowOptionNames = 979 Args.hasFlag(OPT_fdiagnostics_show_option, 980 OPT_fno_diagnostics_show_option, DefaultShowOpt); 981 982 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 983 984 // Default behavior is to not to show note include stacks. 985 Opts.ShowNoteIncludeStack = false; 986 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 987 OPT_fno_diagnostics_show_note_include_stack)) 988 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 989 Opts.ShowNoteIncludeStack = true; 990 991 StringRef ShowOverloads = 992 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 993 if (ShowOverloads == "best") 994 Opts.setShowOverloads(Ovl_Best); 995 else if (ShowOverloads == "all") 996 Opts.setShowOverloads(Ovl_All); 997 else { 998 Success = false; 999 if (Diags) 1000 Diags->Report(diag::err_drv_invalid_value) 1001 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1002 << ShowOverloads; 1003 } 1004 1005 StringRef ShowCategory = 1006 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1007 if (ShowCategory == "none") 1008 Opts.ShowCategories = 0; 1009 else if (ShowCategory == "id") 1010 Opts.ShowCategories = 1; 1011 else if (ShowCategory == "name") 1012 Opts.ShowCategories = 2; 1013 else { 1014 Success = false; 1015 if (Diags) 1016 Diags->Report(diag::err_drv_invalid_value) 1017 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1018 << ShowCategory; 1019 } 1020 1021 StringRef Format = 1022 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1023 if (Format == "clang") 1024 Opts.setFormat(DiagnosticOptions::Clang); 1025 else if (Format == "msvc") 1026 Opts.setFormat(DiagnosticOptions::MSVC); 1027 else if (Format == "msvc-fallback") { 1028 Opts.setFormat(DiagnosticOptions::MSVC); 1029 Opts.CLFallbackMode = true; 1030 } else if (Format == "vi") 1031 Opts.setFormat(DiagnosticOptions::Vi); 1032 else { 1033 Success = false; 1034 if (Diags) 1035 Diags->Report(diag::err_drv_invalid_value) 1036 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1037 << Format; 1038 } 1039 1040 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1041 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1042 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1043 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1044 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1045 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1046 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1047 Diags, DiagMask); 1048 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1049 DiagMask = DiagnosticLevelMask::All; 1050 Opts.setVerifyIgnoreUnexpected(DiagMask); 1051 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1052 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1053 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1054 Opts.MacroBacktraceLimit = 1055 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1056 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1057 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1058 Args, OPT_ftemplate_backtrace_limit, 1059 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1060 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1061 Args, OPT_fconstexpr_backtrace_limit, 1062 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1063 Opts.SpellCheckingLimit = getLastArgIntValue( 1064 Args, OPT_fspell_checking_limit, 1065 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1066 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1067 DiagnosticOptions::DefaultTabStop, Diags); 1068 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1069 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1070 if (Diags) 1071 Diags->Report(diag::warn_ignoring_ftabstop_value) 1072 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1073 } 1074 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1075 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1076 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1077 1078 return Success; 1079 } 1080 1081 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1082 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1083 } 1084 1085 /// Parse the argument to the -ftest-module-file-extension 1086 /// command-line argument. 1087 /// 1088 /// \returns true on error, false on success. 1089 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1090 std::string &BlockName, 1091 unsigned &MajorVersion, 1092 unsigned &MinorVersion, 1093 bool &Hashed, 1094 std::string &UserInfo) { 1095 SmallVector<StringRef, 5> Args; 1096 Arg.split(Args, ':', 5); 1097 if (Args.size() < 5) 1098 return true; 1099 1100 BlockName = Args[0]; 1101 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1102 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1103 if (Args[3].getAsInteger(2, Hashed)) return true; 1104 if (Args.size() > 4) 1105 UserInfo = Args[4]; 1106 return false; 1107 } 1108 1109 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1110 DiagnosticsEngine &Diags, 1111 bool &IsHeaderFile) { 1112 using namespace options; 1113 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1114 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1115 switch (A->getOption().getID()) { 1116 default: 1117 llvm_unreachable("Invalid option in group!"); 1118 case OPT_ast_list: 1119 Opts.ProgramAction = frontend::ASTDeclList; break; 1120 case OPT_ast_dump: 1121 case OPT_ast_dump_lookups: 1122 Opts.ProgramAction = frontend::ASTDump; break; 1123 case OPT_ast_print: 1124 Opts.ProgramAction = frontend::ASTPrint; break; 1125 case OPT_ast_view: 1126 Opts.ProgramAction = frontend::ASTView; break; 1127 case OPT_dump_raw_tokens: 1128 Opts.ProgramAction = frontend::DumpRawTokens; break; 1129 case OPT_dump_tokens: 1130 Opts.ProgramAction = frontend::DumpTokens; break; 1131 case OPT_S: 1132 Opts.ProgramAction = frontend::EmitAssembly; break; 1133 case OPT_emit_llvm_bc: 1134 Opts.ProgramAction = frontend::EmitBC; break; 1135 case OPT_emit_html: 1136 Opts.ProgramAction = frontend::EmitHTML; break; 1137 case OPT_emit_llvm: 1138 Opts.ProgramAction = frontend::EmitLLVM; break; 1139 case OPT_emit_llvm_only: 1140 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1141 case OPT_emit_codegen_only: 1142 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1143 case OPT_emit_obj: 1144 Opts.ProgramAction = frontend::EmitObj; break; 1145 case OPT_fixit_EQ: 1146 Opts.FixItSuffix = A->getValue(); 1147 // fall-through! 1148 case OPT_fixit: 1149 Opts.ProgramAction = frontend::FixIt; break; 1150 case OPT_emit_module: 1151 Opts.ProgramAction = frontend::GenerateModule; break; 1152 case OPT_emit_module_interface: 1153 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1154 case OPT_emit_pch: 1155 Opts.ProgramAction = frontend::GeneratePCH; break; 1156 case OPT_emit_pth: 1157 Opts.ProgramAction = frontend::GeneratePTH; break; 1158 case OPT_init_only: 1159 Opts.ProgramAction = frontend::InitOnly; break; 1160 case OPT_fsyntax_only: 1161 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1162 case OPT_module_file_info: 1163 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1164 case OPT_verify_pch: 1165 Opts.ProgramAction = frontend::VerifyPCH; break; 1166 case OPT_print_decl_contexts: 1167 Opts.ProgramAction = frontend::PrintDeclContext; break; 1168 case OPT_print_preamble: 1169 Opts.ProgramAction = frontend::PrintPreamble; break; 1170 case OPT_E: 1171 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1172 case OPT_rewrite_macros: 1173 Opts.ProgramAction = frontend::RewriteMacros; break; 1174 case OPT_rewrite_objc: 1175 Opts.ProgramAction = frontend::RewriteObjC; break; 1176 case OPT_rewrite_test: 1177 Opts.ProgramAction = frontend::RewriteTest; break; 1178 case OPT_analyze: 1179 Opts.ProgramAction = frontend::RunAnalysis; break; 1180 case OPT_migrate: 1181 Opts.ProgramAction = frontend::MigrateSource; break; 1182 case OPT_Eonly: 1183 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1184 } 1185 } 1186 1187 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1188 Opts.Plugins.emplace_back(A->getValue(0)); 1189 Opts.ProgramAction = frontend::PluginAction; 1190 Opts.ActionName = A->getValue(); 1191 } 1192 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1193 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1194 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1195 1196 for (const std::string &Arg : 1197 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1198 std::string BlockName; 1199 unsigned MajorVersion; 1200 unsigned MinorVersion; 1201 bool Hashed; 1202 std::string UserInfo; 1203 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1204 MinorVersion, Hashed, UserInfo)) { 1205 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1206 1207 continue; 1208 } 1209 1210 // Add the testing module file extension. 1211 Opts.ModuleFileExtensions.push_back( 1212 new TestModuleFileExtension(BlockName, MajorVersion, MinorVersion, 1213 Hashed, UserInfo)); 1214 } 1215 1216 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1217 Opts.CodeCompletionAt = 1218 ParsedSourceLocation::FromString(A->getValue()); 1219 if (Opts.CodeCompletionAt.FileName.empty()) 1220 Diags.Report(diag::err_drv_invalid_value) 1221 << A->getAsString(Args) << A->getValue(); 1222 } 1223 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1224 1225 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1226 Opts.Plugins = Args.getAllArgValues(OPT_load); 1227 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1228 Opts.ShowHelp = Args.hasArg(OPT_help); 1229 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1230 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1231 Opts.ShowVersion = Args.hasArg(OPT_version); 1232 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1233 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1234 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1235 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1236 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1237 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1238 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1239 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1240 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1241 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1242 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1243 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1244 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 1245 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1246 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1247 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1248 1249 Opts.CodeCompleteOpts.IncludeMacros 1250 = Args.hasArg(OPT_code_completion_macros); 1251 Opts.CodeCompleteOpts.IncludeCodePatterns 1252 = Args.hasArg(OPT_code_completion_patterns); 1253 Opts.CodeCompleteOpts.IncludeGlobals 1254 = !Args.hasArg(OPT_no_code_completion_globals); 1255 Opts.CodeCompleteOpts.IncludeBriefComments 1256 = Args.hasArg(OPT_code_completion_brief_comments); 1257 1258 Opts.OverrideRecordLayoutsFile 1259 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1260 Opts.AuxTriple = 1261 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1262 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1263 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1264 1265 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1266 OPT_arcmt_modify, 1267 OPT_arcmt_migrate)) { 1268 switch (A->getOption().getID()) { 1269 default: 1270 llvm_unreachable("missed a case"); 1271 case OPT_arcmt_check: 1272 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1273 break; 1274 case OPT_arcmt_modify: 1275 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1276 break; 1277 case OPT_arcmt_migrate: 1278 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1279 break; 1280 } 1281 } 1282 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1283 Opts.ARCMTMigrateReportOut 1284 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1285 Opts.ARCMTMigrateEmitARCErrors 1286 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1287 1288 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1289 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1290 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1291 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1292 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1293 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1294 if (Args.hasArg(OPT_objcmt_migrate_property)) 1295 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1296 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1297 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1298 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1299 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1300 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1301 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1302 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1303 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1304 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1305 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1306 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1307 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1308 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1309 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1310 if (Args.hasArg(OPT_objcmt_atomic_property)) 1311 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1312 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1313 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1314 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1315 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1316 if (Args.hasArg(OPT_objcmt_migrate_all)) 1317 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1318 1319 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1320 1321 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1322 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1323 Diags.Report(diag::err_drv_argument_not_allowed_with) 1324 << "ARC migration" << "ObjC migration"; 1325 } 1326 1327 InputKind DashX = IK_None; 1328 if (const Arg *A = Args.getLastArg(OPT_x)) { 1329 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 1330 .Case("c", IK_C) 1331 .Case("cl", IK_OpenCL) 1332 .Case("cuda", IK_CUDA) 1333 .Case("c++", IK_CXX) 1334 .Case("c++-module", IK_CXX) 1335 .Case("objective-c", IK_ObjC) 1336 .Case("objective-c++", IK_ObjCXX) 1337 .Case("cpp-output", IK_PreprocessedC) 1338 .Case("assembler-with-cpp", IK_Asm) 1339 .Case("c++-cpp-output", IK_PreprocessedCXX) 1340 .Case("c++-module-cpp-output", IK_PreprocessedCXX) 1341 .Case("cuda-cpp-output", IK_PreprocessedCuda) 1342 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1343 .Case("objc-cpp-output", IK_PreprocessedObjC) 1344 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1345 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1346 .Case("c-header", IK_C) 1347 .Case("cl-header", IK_OpenCL) 1348 .Case("objective-c-header", IK_ObjC) 1349 .Case("c++-header", IK_CXX) 1350 .Case("objective-c++-header", IK_ObjCXX) 1351 .Cases("ast", "pcm", IK_AST) 1352 .Case("ir", IK_LLVM_IR) 1353 .Case("renderscript", IK_RenderScript) 1354 .Default(IK_None); 1355 if (DashX == IK_None) 1356 Diags.Report(diag::err_drv_invalid_value) 1357 << A->getAsString(Args) << A->getValue(); 1358 IsHeaderFile = llvm::StringSwitch<bool>(A->getValue()) 1359 .Case("c-header", true) 1360 .Case("cl-header", true) 1361 .Case("objective-c-header", true) 1362 .Case("c++-header", true) 1363 .Case("objective-c++-header", true) 1364 .Default(false); 1365 } 1366 1367 // '-' is the default input if none is given. 1368 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1369 Opts.Inputs.clear(); 1370 if (Inputs.empty()) 1371 Inputs.push_back("-"); 1372 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1373 InputKind IK = DashX; 1374 if (IK == IK_None) { 1375 IK = FrontendOptions::getInputKindForExtension( 1376 StringRef(Inputs[i]).rsplit('.').second); 1377 // FIXME: Remove this hack. 1378 if (i == 0) 1379 DashX = IK; 1380 } 1381 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1382 } 1383 1384 return DashX; 1385 } 1386 1387 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1388 void *MainAddr) { 1389 std::string ClangExecutable = 1390 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1391 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1392 1393 // Compute the path to the resource directory. 1394 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1395 SmallString<128> P(Dir); 1396 if (ClangResourceDir != "") 1397 llvm::sys::path::append(P, ClangResourceDir); 1398 else 1399 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1400 "clang", CLANG_VERSION_STRING); 1401 1402 return P.str(); 1403 } 1404 1405 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1406 using namespace options; 1407 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1408 Opts.Verbose = Args.hasArg(OPT_v); 1409 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1410 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1411 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1412 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1413 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1414 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1415 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 1416 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1417 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1418 Opts.AddPrebuiltModulePath(A->getValue()); 1419 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1420 Opts.ModulesValidateDiagnosticOptions = 1421 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1422 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1423 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1424 Opts.ModuleCachePruneInterval = 1425 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1426 Opts.ModuleCachePruneAfter = 1427 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1428 Opts.ModulesValidateOncePerBuildSession = 1429 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1430 Opts.BuildSessionTimestamp = 1431 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1432 Opts.ModulesValidateSystemHeaders = 1433 Args.hasArg(OPT_fmodules_validate_system_headers); 1434 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1435 Opts.ModuleFormat = A->getValue(); 1436 1437 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1438 StringRef MacroDef = A->getValue(); 1439 Opts.ModulesIgnoreMacros.insert( 1440 llvm::CachedHashString(MacroDef.split('=').first)); 1441 } 1442 1443 // Add -I..., -F..., and -index-header-map options in order. 1444 bool IsIndexHeaderMap = false; 1445 bool IsSysrootSpecified = 1446 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1447 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1448 if (A->getOption().matches(OPT_index_header_map)) { 1449 // -index-header-map applies to the next -I or -F. 1450 IsIndexHeaderMap = true; 1451 continue; 1452 } 1453 1454 frontend::IncludeDirGroup Group = 1455 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1456 1457 bool IsFramework = A->getOption().matches(OPT_F); 1458 std::string Path = A->getValue(); 1459 1460 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1461 SmallString<32> Buffer; 1462 llvm::sys::path::append(Buffer, Opts.Sysroot, 1463 llvm::StringRef(A->getValue()).substr(1)); 1464 Path = Buffer.str(); 1465 } 1466 1467 Opts.AddPath(Path, Group, IsFramework, 1468 /*IgnoreSysroot*/ true); 1469 IsIndexHeaderMap = false; 1470 } 1471 1472 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1473 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1474 for (const Arg *A : 1475 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1476 if (A->getOption().matches(OPT_iprefix)) 1477 Prefix = A->getValue(); 1478 else if (A->getOption().matches(OPT_iwithprefix)) 1479 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1480 else 1481 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1482 } 1483 1484 for (const Arg *A : Args.filtered(OPT_idirafter)) 1485 Opts.AddPath(A->getValue(), frontend::After, false, true); 1486 for (const Arg *A : Args.filtered(OPT_iquote)) 1487 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1488 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1489 Opts.AddPath(A->getValue(), frontend::System, false, 1490 !A->getOption().matches(OPT_iwithsysroot)); 1491 for (const Arg *A : Args.filtered(OPT_iframework)) 1492 Opts.AddPath(A->getValue(), frontend::System, true, true); 1493 1494 // Add the paths for the various language specific isystem flags. 1495 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1496 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1497 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1498 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1499 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1500 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1501 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1502 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1503 1504 // Add the internal paths from a driver that detects standard include paths. 1505 for (const Arg *A : 1506 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1507 frontend::IncludeDirGroup Group = frontend::System; 1508 if (A->getOption().matches(OPT_internal_externc_isystem)) 1509 Group = frontend::ExternCSystem; 1510 Opts.AddPath(A->getValue(), Group, false, true); 1511 } 1512 1513 // Add the path prefixes which are implicitly treated as being system headers. 1514 for (const Arg *A : 1515 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1516 Opts.AddSystemHeaderPrefix( 1517 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1518 1519 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1520 Opts.AddVFSOverlayFile(A->getValue()); 1521 } 1522 1523 static bool isOpenCL(LangStandard::Kind LangStd) { 1524 return LangStd == LangStandard::lang_opencl || 1525 LangStd == LangStandard::lang_opencl11 || 1526 LangStd == LangStandard::lang_opencl12 || 1527 LangStd == LangStandard::lang_opencl20; 1528 } 1529 1530 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1531 const llvm::Triple &T, 1532 PreprocessorOptions &PPOpts, 1533 LangStandard::Kind LangStd) { 1534 // Set some properties which depend solely on the input kind; it would be nice 1535 // to move these to the language standard, and have the driver resolve the 1536 // input kind + language standard. 1537 if (IK == IK_Asm) { 1538 Opts.AsmPreprocessor = 1; 1539 } else if (IK == IK_ObjC || 1540 IK == IK_ObjCXX || 1541 IK == IK_PreprocessedObjC || 1542 IK == IK_PreprocessedObjCXX) { 1543 Opts.ObjC1 = Opts.ObjC2 = 1; 1544 } 1545 1546 if (LangStd == LangStandard::lang_unspecified) { 1547 // Based on the base language, pick one. 1548 switch (IK) { 1549 case IK_None: 1550 case IK_AST: 1551 case IK_LLVM_IR: 1552 llvm_unreachable("Invalid input kind!"); 1553 case IK_OpenCL: 1554 LangStd = LangStandard::lang_opencl; 1555 break; 1556 case IK_CUDA: 1557 case IK_PreprocessedCuda: 1558 LangStd = LangStandard::lang_cuda; 1559 break; 1560 case IK_Asm: 1561 case IK_C: 1562 case IK_PreprocessedC: 1563 // The PS4 uses C99 as the default C standard. 1564 if (T.isPS4()) 1565 LangStd = LangStandard::lang_gnu99; 1566 else 1567 LangStd = LangStandard::lang_gnu11; 1568 break; 1569 case IK_ObjC: 1570 case IK_PreprocessedObjC: 1571 LangStd = LangStandard::lang_gnu11; 1572 break; 1573 case IK_CXX: 1574 case IK_PreprocessedCXX: 1575 case IK_ObjCXX: 1576 case IK_PreprocessedObjCXX: 1577 LangStd = LangStandard::lang_gnucxx98; 1578 break; 1579 case IK_RenderScript: 1580 LangStd = LangStandard::lang_c99; 1581 break; 1582 } 1583 } 1584 1585 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1586 Opts.LineComment = Std.hasLineComments(); 1587 Opts.C99 = Std.isC99(); 1588 Opts.C11 = Std.isC11(); 1589 Opts.CPlusPlus = Std.isCPlusPlus(); 1590 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1591 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1592 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1593 Opts.Digraphs = Std.hasDigraphs(); 1594 Opts.GNUMode = Std.isGNUMode(); 1595 Opts.GNUInline = Std.isC89(); 1596 Opts.HexFloats = Std.hasHexFloats(); 1597 Opts.ImplicitInt = Std.hasImplicitInt(); 1598 1599 // Set OpenCL Version. 1600 Opts.OpenCL = isOpenCL(LangStd) || IK == IK_OpenCL; 1601 if (LangStd == LangStandard::lang_opencl) 1602 Opts.OpenCLVersion = 100; 1603 else if (LangStd == LangStandard::lang_opencl11) 1604 Opts.OpenCLVersion = 110; 1605 else if (LangStd == LangStandard::lang_opencl12) 1606 Opts.OpenCLVersion = 120; 1607 else if (LangStd == LangStandard::lang_opencl20) 1608 Opts.OpenCLVersion = 200; 1609 1610 // OpenCL has some additional defaults. 1611 if (Opts.OpenCL) { 1612 Opts.AltiVec = 0; 1613 Opts.ZVector = 0; 1614 Opts.CXXOperatorNames = 1; 1615 Opts.LaxVectorConversions = 0; 1616 Opts.DefaultFPContract = 1; 1617 Opts.NativeHalfType = 1; 1618 Opts.NativeHalfArgsAndReturns = 1; 1619 // Include default header file for OpenCL. 1620 if (Opts.IncludeDefaultHeader) { 1621 PPOpts.Includes.push_back("opencl-c.h"); 1622 } 1623 } 1624 1625 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || 1626 LangStd == LangStandard::lang_cuda; 1627 1628 Opts.RenderScript = IK == IK_RenderScript; 1629 if (Opts.RenderScript) { 1630 Opts.NativeHalfType = 1; 1631 Opts.NativeHalfArgsAndReturns = 1; 1632 } 1633 1634 // OpenCL and C++ both have bool, true, false keywords. 1635 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1636 1637 // OpenCL has half keyword 1638 Opts.Half = Opts.OpenCL; 1639 1640 // C++ has wchar_t keyword. 1641 Opts.WChar = Opts.CPlusPlus; 1642 1643 Opts.GNUKeywords = Opts.GNUMode; 1644 Opts.CXXOperatorNames = Opts.CPlusPlus; 1645 1646 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1647 1648 Opts.DollarIdents = !Opts.AsmPreprocessor; 1649 } 1650 1651 /// Attempt to parse a visibility value out of the given argument. 1652 static Visibility parseVisibility(Arg *arg, ArgList &args, 1653 DiagnosticsEngine &diags) { 1654 StringRef value = arg->getValue(); 1655 if (value == "default") { 1656 return DefaultVisibility; 1657 } else if (value == "hidden" || value == "internal") { 1658 return HiddenVisibility; 1659 } else if (value == "protected") { 1660 // FIXME: diagnose if target does not support protected visibility 1661 return ProtectedVisibility; 1662 } 1663 1664 diags.Report(diag::err_drv_invalid_value) 1665 << arg->getAsString(args) << value; 1666 return DefaultVisibility; 1667 } 1668 1669 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1670 const TargetOptions &TargetOpts, 1671 PreprocessorOptions &PPOpts, 1672 DiagnosticsEngine &Diags) { 1673 // FIXME: Cleanup per-file based stuff. 1674 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1675 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1676 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1677 #define LANGSTANDARD(id, name, desc, features) \ 1678 .Case(name, LangStandard::lang_##id) 1679 #define LANGSTANDARD_ALIAS(id, alias) \ 1680 .Case(alias, LangStandard::lang_##id) 1681 #include "clang/Frontend/LangStandards.def" 1682 .Default(LangStandard::lang_unspecified); 1683 if (LangStd == LangStandard::lang_unspecified) 1684 Diags.Report(diag::err_drv_invalid_value) 1685 << A->getAsString(Args) << A->getValue(); 1686 else { 1687 // Valid standard, check to make sure language and standard are 1688 // compatible. 1689 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1690 switch (IK) { 1691 case IK_C: 1692 case IK_ObjC: 1693 case IK_PreprocessedC: 1694 case IK_PreprocessedObjC: 1695 if (!(Std.isC89() || Std.isC99())) 1696 Diags.Report(diag::err_drv_argument_not_allowed_with) 1697 << A->getAsString(Args) << "C/ObjC"; 1698 break; 1699 case IK_CXX: 1700 case IK_ObjCXX: 1701 case IK_PreprocessedCXX: 1702 case IK_PreprocessedObjCXX: 1703 if (!Std.isCPlusPlus()) 1704 Diags.Report(diag::err_drv_argument_not_allowed_with) 1705 << A->getAsString(Args) << "C++/ObjC++"; 1706 break; 1707 case IK_OpenCL: 1708 if (!isOpenCL(LangStd)) 1709 Diags.Report(diag::err_drv_argument_not_allowed_with) 1710 << A->getAsString(Args) << "OpenCL"; 1711 break; 1712 case IK_CUDA: 1713 case IK_PreprocessedCuda: 1714 if (!Std.isCPlusPlus()) 1715 Diags.Report(diag::err_drv_argument_not_allowed_with) 1716 << A->getAsString(Args) << "CUDA"; 1717 break; 1718 default: 1719 break; 1720 } 1721 } 1722 } 1723 1724 // -cl-std only applies for OpenCL language standards. 1725 // Override the -std option in this case. 1726 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1727 LangStandard::Kind OpenCLLangStd 1728 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1729 .Cases("cl", "CL", LangStandard::lang_opencl) 1730 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1731 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1732 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1733 .Default(LangStandard::lang_unspecified); 1734 1735 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1736 Diags.Report(diag::err_drv_invalid_value) 1737 << A->getAsString(Args) << A->getValue(); 1738 } 1739 else 1740 LangStd = OpenCLLangStd; 1741 } 1742 1743 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1744 1745 llvm::Triple T(TargetOpts.Triple); 1746 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1747 1748 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1749 // This option should be deprecated for CL > 1.0 because 1750 // this option was added for compatibility with OpenCL 1.0. 1751 if (Args.getLastArg(OPT_cl_strict_aliasing) 1752 && Opts.OpenCLVersion > 100) { 1753 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1754 std::string(".") + 1755 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1756 Diags.Report(diag::warn_option_invalid_ocl_version) 1757 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1758 } 1759 1760 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1761 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1762 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1763 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1764 // name, as it doesn't seem a useful distinction. 1765 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1766 Opts.GNUKeywords); 1767 1768 if (Args.hasArg(OPT_fno_operator_names)) 1769 Opts.CXXOperatorNames = 0; 1770 1771 if (Args.hasArg(OPT_fcuda_is_device)) 1772 Opts.CUDAIsDevice = 1; 1773 1774 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1775 Opts.CUDAAllowVariadicFunctions = 1; 1776 1777 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1778 Opts.CUDAHostDeviceConstexpr = 0; 1779 1780 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1781 Opts.CUDADeviceFlushDenormalsToZero = 1; 1782 1783 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1784 Opts.CUDADeviceApproxTranscendentals = 1; 1785 1786 if (Opts.ObjC1) { 1787 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1788 StringRef value = arg->getValue(); 1789 if (Opts.ObjCRuntime.tryParse(value)) 1790 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1791 } 1792 1793 if (Args.hasArg(OPT_fobjc_gc_only)) 1794 Opts.setGC(LangOptions::GCOnly); 1795 else if (Args.hasArg(OPT_fobjc_gc)) 1796 Opts.setGC(LangOptions::HybridGC); 1797 else if (Args.hasArg(OPT_fobjc_arc)) { 1798 Opts.ObjCAutoRefCount = 1; 1799 if (!Opts.ObjCRuntime.allowsARC()) 1800 Diags.Report(diag::err_arc_unsupported_on_runtime); 1801 } 1802 1803 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 1804 // whether the feature is actually enabled. This is predominantly 1805 // determined by -fobjc-runtime, but we allow it to be overridden 1806 // from the command line for testing purposes. 1807 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1808 Opts.ObjCWeakRuntime = 1; 1809 else 1810 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 1811 1812 // ObjCWeak determines whether __weak is actually enabled. 1813 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 1814 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 1815 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 1816 assert(!Opts.ObjCWeak); 1817 } else if (Opts.getGC() != LangOptions::NonGC) { 1818 Diags.Report(diag::err_objc_weak_with_gc); 1819 } else if (!Opts.ObjCWeakRuntime) { 1820 Diags.Report(diag::err_objc_weak_unsupported); 1821 } else { 1822 Opts.ObjCWeak = 1; 1823 } 1824 } else if (Opts.ObjCAutoRefCount) { 1825 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 1826 } 1827 1828 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1829 Opts.ObjCInferRelatedResultType = 0; 1830 1831 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1832 Opts.ObjCSubscriptingLegacyRuntime = 1833 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1834 } 1835 1836 if (Args.hasArg(OPT_fgnu89_inline)) { 1837 if (Opts.CPlusPlus) 1838 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline" 1839 << "C++/ObjC++"; 1840 else 1841 Opts.GNUInline = 1; 1842 } 1843 1844 if (Args.hasArg(OPT_fapple_kext)) { 1845 if (!Opts.CPlusPlus) 1846 Diags.Report(diag::warn_c_kext); 1847 else 1848 Opts.AppleKext = 1; 1849 } 1850 1851 if (Args.hasArg(OPT_print_ivar_layout)) 1852 Opts.ObjCGCBitmapPrint = 1; 1853 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1854 Opts.NoConstantCFStrings = 1; 1855 1856 if (Args.hasArg(OPT_faltivec)) 1857 Opts.AltiVec = 1; 1858 1859 if (Args.hasArg(OPT_fzvector)) 1860 Opts.ZVector = 1; 1861 1862 if (Args.hasArg(OPT_pthread)) 1863 Opts.POSIXThreads = 1; 1864 1865 // The value-visibility mode defaults to "default". 1866 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1867 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1868 } else { 1869 Opts.setValueVisibilityMode(DefaultVisibility); 1870 } 1871 1872 // The type-visibility mode defaults to the value-visibility mode. 1873 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1874 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1875 } else { 1876 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1877 } 1878 1879 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1880 Opts.InlineVisibilityHidden = 1; 1881 1882 if (Args.hasArg(OPT_ftrapv)) { 1883 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1884 // Set the handler, if one is specified. 1885 Opts.OverflowHandler = 1886 Args.getLastArgValue(OPT_ftrapv_handler); 1887 } 1888 else if (Args.hasArg(OPT_fwrapv)) 1889 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1890 1891 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1892 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1893 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1894 Opts.MSCompatibilityVersion = 0; 1895 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1896 VersionTuple VT; 1897 if (VT.tryParse(A->getValue())) 1898 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1899 << A->getValue(); 1900 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1901 VT.getMinor().getValueOr(0) * 100000 + 1902 VT.getSubminor().getValueOr(0); 1903 } 1904 1905 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1906 // is specified, or -std is set to a conforming mode. 1907 // Trigraphs are disabled by default in c++1z onwards. 1908 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1909 Opts.Trigraphs = 1910 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1911 1912 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1913 OPT_fno_dollars_in_identifiers, 1914 Opts.DollarIdents); 1915 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1916 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1917 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1918 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1919 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1920 Opts.ConstStrings); 1921 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1922 Opts.LaxVectorConversions = 0; 1923 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1924 Opts.ThreadsafeStatics = 0; 1925 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1926 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1927 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1928 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1929 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 1930 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1931 1932 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 1933 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1934 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 1935 && Opts.OpenCLVersion >= 200); 1936 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1937 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 1938 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 1939 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 1940 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1941 Opts.ModulesDeclUse = 1942 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1943 Opts.ModulesLocalVisibility = 1944 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 1945 Opts.ModulesSearchAll = Opts.Modules && 1946 !Args.hasArg(OPT_fno_modules_search_all) && 1947 Args.hasArg(OPT_fmodules_search_all); 1948 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1949 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 1950 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1951 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1952 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1953 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1954 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1955 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1956 if (!Opts.NoBuiltin) 1957 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 1958 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1959 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 1960 Opts.AlignedAllocation = 1961 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 1962 Opts.AlignedAllocation); 1963 Opts.NewAlignOverride = 1964 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 1965 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 1966 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 1967 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 1968 << A->getValue(); 1969 Opts.NewAlignOverride = 0; 1970 } 1971 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 1972 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1973 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1974 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1975 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1976 Opts.InstantiationDepth = 1977 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 1978 Opts.ArrowDepth = 1979 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1980 Opts.ConstexprCallDepth = 1981 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1982 Opts.ConstexprStepLimit = 1983 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1984 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1985 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1986 Opts.NumLargeByValueCopy = 1987 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1988 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1989 Opts.ObjCConstantStringClass = 1990 Args.getLastArgValue(OPT_fconstant_string_class); 1991 Opts.ObjCDefaultSynthProperties = 1992 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 1993 Opts.EncodeExtendedBlockSig = 1994 Args.hasArg(OPT_fencode_extended_block_signature); 1995 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1996 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 1997 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 1998 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 1999 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2000 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2001 Opts.Static = Args.hasArg(OPT_static_define); 2002 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2003 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2004 || Args.hasArg(OPT_fdump_record_layouts); 2005 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2006 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2007 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2008 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2009 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2010 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2011 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2012 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2013 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2014 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2015 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2016 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2017 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2018 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2019 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2020 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2021 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2022 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2023 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2024 // is enabled. 2025 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2026 | Opts.NativeHalfArgsAndReturns; 2027 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2028 2029 // __declspec is enabled by default for the PS4 by the driver, and also 2030 // enabled for Microsoft Extensions or Borland Extensions, here. 2031 // 2032 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2033 // CUDA extension. However, it is required for supporting 2034 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2035 // been rewritten in terms of something more generic, remove the Opts.CUDA 2036 // term here. 2037 Opts.DeclSpecKeyword = 2038 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2039 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2040 2041 // For now, we only support local submodule visibility in C++ (because we 2042 // heavily depend on the ODR for merging redefinitions). 2043 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) 2044 Diags.Report(diag::err_drv_argument_not_allowed_with) 2045 << "-fmodules-local-submodule-visibility" << "C"; 2046 2047 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2048 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2049 .Case("target", LangOptions::ASMM_Target) 2050 .Case("no", LangOptions::ASMM_Off) 2051 .Case("yes", LangOptions::ASMM_On) 2052 .Default(255)) { 2053 default: 2054 Diags.Report(diag::err_drv_invalid_value) 2055 << "-faddress-space-map-mangling=" << A->getValue(); 2056 break; 2057 case LangOptions::ASMM_Target: 2058 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2059 break; 2060 case LangOptions::ASMM_On: 2061 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2062 break; 2063 case LangOptions::ASMM_Off: 2064 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2065 break; 2066 } 2067 } 2068 2069 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2070 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2071 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2072 A->getValue()) 2073 .Case("single", 2074 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2075 .Case("multiple", 2076 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2077 .Case("virtual", 2078 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2079 .Default(LangOptions::PPTMK_BestCase); 2080 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2081 Diags.Report(diag::err_drv_invalid_value) 2082 << "-fms-memptr-rep=" << A->getValue(); 2083 2084 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2085 } 2086 2087 // Check for MS default calling conventions being specified. 2088 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2089 LangOptions::DefaultCallingConvention DefaultCC = 2090 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2091 A->getValue()) 2092 .Case("cdecl", LangOptions::DCC_CDecl) 2093 .Case("fastcall", LangOptions::DCC_FastCall) 2094 .Case("stdcall", LangOptions::DCC_StdCall) 2095 .Case("vectorcall", LangOptions::DCC_VectorCall) 2096 .Default(LangOptions::DCC_None); 2097 if (DefaultCC == LangOptions::DCC_None) 2098 Diags.Report(diag::err_drv_invalid_value) 2099 << "-fdefault-calling-conv=" << A->getValue(); 2100 2101 llvm::Triple T(TargetOpts.Triple); 2102 llvm::Triple::ArchType Arch = T.getArch(); 2103 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2104 DefaultCC == LangOptions::DCC_StdCall) && 2105 Arch != llvm::Triple::x86; 2106 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2107 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2108 if (emitError) 2109 Diags.Report(diag::err_drv_argument_not_allowed_with) 2110 << A->getSpelling() << T.getTriple(); 2111 else 2112 Opts.setDefaultCallingConv(DefaultCC); 2113 } 2114 2115 // -mrtd option 2116 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2117 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2118 Diags.Report(diag::err_drv_argument_not_allowed_with) 2119 << A->getSpelling() << "-fdefault-calling-conv"; 2120 else { 2121 llvm::Triple T(TargetOpts.Triple); 2122 if (T.getArch() != llvm::Triple::x86) 2123 Diags.Report(diag::err_drv_argument_not_allowed_with) 2124 << A->getSpelling() << T.getTriple(); 2125 else 2126 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2127 } 2128 } 2129 2130 // Check if -fopenmp is specified. 2131 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2132 Opts.OpenMPUseTLS = 2133 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2134 Opts.OpenMPIsDevice = 2135 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2136 2137 if (Opts.OpenMP) { 2138 int Version = 2139 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2140 if (Version != 0) 2141 Opts.OpenMP = Version; 2142 // Provide diagnostic when a given target is not expected to be an OpenMP 2143 // device or host. 2144 if (!Opts.OpenMPIsDevice) { 2145 switch (T.getArch()) { 2146 default: 2147 break; 2148 // Add unsupported host targets here: 2149 case llvm::Triple::nvptx: 2150 case llvm::Triple::nvptx64: 2151 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2152 << TargetOpts.Triple; 2153 break; 2154 } 2155 } 2156 } 2157 2158 // Get the OpenMP target triples if any. 2159 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2160 2161 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2162 llvm::Triple TT(A->getValue(i)); 2163 2164 if (TT.getArch() == llvm::Triple::UnknownArch) 2165 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2166 else 2167 Opts.OMPTargetTriples.push_back(TT); 2168 } 2169 } 2170 2171 // Get OpenMP host file path if any and report if a non existent file is 2172 // found 2173 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2174 Opts.OMPHostIRFile = A->getValue(); 2175 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2176 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2177 << Opts.OMPHostIRFile; 2178 } 2179 2180 // Record whether the __DEPRECATED define was requested. 2181 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2182 OPT_fno_deprecated_macro, 2183 Opts.Deprecated); 2184 2185 // FIXME: Eliminate this dependency. 2186 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2187 OptSize = getOptimizationLevelSize(Args); 2188 Opts.Optimize = Opt != 0; 2189 Opts.OptimizeSize = OptSize != 0; 2190 2191 // This is the __NO_INLINE__ define, which just depends on things like the 2192 // optimization level and -fno-inline, not actually whether the backend has 2193 // inlining enabled. 2194 Opts.NoInlineDefine = !Opts.Optimize; 2195 if (Arg *InlineArg = Args.getLastArg( 2196 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2197 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2198 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2199 Opts.NoInlineDefine = true; 2200 2201 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2202 Args.hasArg(OPT_cl_fast_relaxed_math); 2203 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2204 Args.hasArg(OPT_cl_finite_math_only) || 2205 Args.hasArg(OPT_cl_fast_relaxed_math); 2206 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2207 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2208 Args.hasArg(OPT_cl_fast_relaxed_math); 2209 2210 Opts.RetainCommentsFromSystemHeaders = 2211 Args.hasArg(OPT_fretain_comments_from_system_headers); 2212 2213 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2214 switch (SSP) { 2215 default: 2216 Diags.Report(diag::err_drv_invalid_value) 2217 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2218 break; 2219 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2220 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2221 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2222 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2223 } 2224 2225 // Parse -fsanitize= arguments. 2226 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2227 Diags, Opts.Sanitize); 2228 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2229 Opts.SanitizeAddressFieldPadding = 2230 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2231 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2232 } 2233 2234 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2235 FileManager &FileMgr, 2236 DiagnosticsEngine &Diags) { 2237 using namespace options; 2238 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2239 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2240 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2241 Opts.TokenCache = A->getValue(); 2242 else 2243 Opts.TokenCache = Opts.ImplicitPTHInclude; 2244 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2245 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2246 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2247 2248 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2249 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2250 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2251 2252 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2253 StringRef Value(A->getValue()); 2254 size_t Comma = Value.find(','); 2255 unsigned Bytes = 0; 2256 unsigned EndOfLine = 0; 2257 2258 if (Comma == StringRef::npos || 2259 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2260 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2261 Diags.Report(diag::err_drv_preamble_format); 2262 else { 2263 Opts.PrecompiledPreambleBytes.first = Bytes; 2264 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2265 } 2266 } 2267 2268 // Add macros from the command line. 2269 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2270 if (A->getOption().matches(OPT_D)) 2271 Opts.addMacroDef(A->getValue()); 2272 else 2273 Opts.addMacroUndef(A->getValue()); 2274 } 2275 2276 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2277 2278 // Add the ordered list of -includes. 2279 for (const Arg *A : Args.filtered(OPT_include)) 2280 Opts.Includes.emplace_back(A->getValue()); 2281 2282 for (const Arg *A : Args.filtered(OPT_chain_include)) 2283 Opts.ChainedIncludes.emplace_back(A->getValue()); 2284 2285 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2286 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2287 2288 if (Split.second.empty()) { 2289 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2290 continue; 2291 } 2292 2293 Opts.addRemappedFile(Split.first, Split.second); 2294 } 2295 2296 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2297 StringRef Name = A->getValue(); 2298 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2299 .Case("libc++", ARCXX_libcxx) 2300 .Case("libstdc++", ARCXX_libstdcxx) 2301 .Case("none", ARCXX_nolib) 2302 .Default(~0U); 2303 if (Library == ~0U) 2304 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2305 else 2306 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2307 } 2308 } 2309 2310 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2311 ArgList &Args, 2312 frontend::ActionKind Action) { 2313 using namespace options; 2314 2315 switch (Action) { 2316 case frontend::ASTDeclList: 2317 case frontend::ASTDump: 2318 case frontend::ASTPrint: 2319 case frontend::ASTView: 2320 case frontend::EmitAssembly: 2321 case frontend::EmitBC: 2322 case frontend::EmitHTML: 2323 case frontend::EmitLLVM: 2324 case frontend::EmitLLVMOnly: 2325 case frontend::EmitCodeGenOnly: 2326 case frontend::EmitObj: 2327 case frontend::FixIt: 2328 case frontend::GenerateModule: 2329 case frontend::GenerateModuleInterface: 2330 case frontend::GeneratePCH: 2331 case frontend::GeneratePTH: 2332 case frontend::ParseSyntaxOnly: 2333 case frontend::ModuleFileInfo: 2334 case frontend::VerifyPCH: 2335 case frontend::PluginAction: 2336 case frontend::PrintDeclContext: 2337 case frontend::RewriteObjC: 2338 case frontend::RewriteTest: 2339 case frontend::RunAnalysis: 2340 case frontend::MigrateSource: 2341 Opts.ShowCPP = 0; 2342 break; 2343 2344 case frontend::DumpRawTokens: 2345 case frontend::DumpTokens: 2346 case frontend::InitOnly: 2347 case frontend::PrintPreamble: 2348 case frontend::PrintPreprocessedInput: 2349 case frontend::RewriteMacros: 2350 case frontend::RunPreprocessorOnly: 2351 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2352 break; 2353 } 2354 2355 Opts.ShowComments = Args.hasArg(OPT_C); 2356 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2357 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2358 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2359 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2360 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2361 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2362 } 2363 2364 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2365 DiagnosticsEngine &Diags) { 2366 using namespace options; 2367 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2368 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2369 StringRef Value = A->getValue(); 2370 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2371 .Case("default", llvm::EABI::Default) 2372 .Case("4", llvm::EABI::EABI4) 2373 .Case("5", llvm::EABI::EABI5) 2374 .Case("gnu", llvm::EABI::GNU) 2375 .Default(llvm::EABI::Unknown); 2376 if (EABIVersion == llvm::EABI::Unknown) 2377 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2378 << Value; 2379 else 2380 Opts.EABIVersion = Value; 2381 } 2382 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2383 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2384 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2385 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2386 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2387 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2388 // Use the default target triple if unspecified. 2389 if (Opts.Triple.empty()) 2390 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2391 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2392 } 2393 2394 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2395 const char *const *ArgBegin, 2396 const char *const *ArgEnd, 2397 DiagnosticsEngine &Diags) { 2398 bool Success = true; 2399 2400 // Parse the arguments. 2401 std::unique_ptr<OptTable> Opts(createDriverOptTable()); 2402 const unsigned IncludedFlagsBitmask = options::CC1Option; 2403 unsigned MissingArgIndex, MissingArgCount; 2404 InputArgList Args = 2405 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2406 MissingArgCount, IncludedFlagsBitmask); 2407 LangOptions &LangOpts = *Res.getLangOpts(); 2408 2409 // Check for missing argument error. 2410 if (MissingArgCount) { 2411 Diags.Report(diag::err_drv_missing_argument) 2412 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2413 Success = false; 2414 } 2415 2416 // Issue errors on unknown arguments. 2417 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2418 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2419 Success = false; 2420 } 2421 2422 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2423 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2424 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2425 Success &= 2426 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2427 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2428 ParseCommentArgs(LangOpts.CommentOpts, Args); 2429 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2430 // FIXME: We shouldn't have to pass the DashX option around here 2431 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2432 LangOpts.IsHeaderFile); 2433 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2434 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2435 Res.getTargetOpts()); 2436 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args); 2437 if (DashX == IK_AST || DashX == IK_LLVM_IR) { 2438 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2439 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2440 // what the input type is. 2441 if (Args.hasArg(OPT_fobjc_arc)) 2442 LangOpts.ObjCAutoRefCount = 1; 2443 // PIClevel and PIELevel are needed during code generation and this should be 2444 // set regardless of the input type. 2445 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2446 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2447 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2448 Diags, LangOpts.Sanitize); 2449 } else { 2450 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2451 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2452 Res.getPreprocessorOpts(), Diags); 2453 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2454 LangOpts.ObjCExceptions = 1; 2455 } 2456 2457 if (LangOpts.CUDA) { 2458 // During CUDA device-side compilation, the aux triple is the 2459 // triple used for host compilation. 2460 if (LangOpts.CUDAIsDevice) 2461 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2462 2463 // Set default FP_CONTRACT to FAST. 2464 if (!Args.hasArg(OPT_ffp_contract)) 2465 Res.getCodeGenOpts().setFPContractMode(CodeGenOptions::FPC_Fast); 2466 } 2467 2468 // FIXME: Override value name discarding when asan or msan is used because the 2469 // backend passes depend on the name of the alloca in order to print out 2470 // names. 2471 Res.getCodeGenOpts().DiscardValueNames &= 2472 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2473 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2474 2475 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2476 // PCH file and find the original header name. Remove the need to do that in 2477 // ParsePreprocessorArgs and remove the FileManager 2478 // parameters from the function and the "FileManager.h" #include. 2479 FileManager FileMgr(Res.getFileSystemOpts()); 2480 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags); 2481 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2482 Res.getFrontendOpts().ProgramAction); 2483 2484 // Turn on -Wspir-compat for SPIR target. 2485 llvm::Triple T(Res.getTargetOpts().Triple); 2486 auto Arch = T.getArch(); 2487 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2488 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2489 } 2490 return Success; 2491 } 2492 2493 std::string CompilerInvocation::getModuleHash() const { 2494 // Note: For QoI reasons, the things we use as a hash here should all be 2495 // dumped via the -module-info flag. 2496 using llvm::hash_code; 2497 using llvm::hash_value; 2498 using llvm::hash_combine; 2499 2500 // Start the signature with the compiler version. 2501 // FIXME: We'd rather use something more cryptographically sound than 2502 // CityHash, but this will do for now. 2503 hash_code code = hash_value(getClangFullRepositoryVersion()); 2504 2505 // Extend the signature with the language options 2506 #define LANGOPT(Name, Bits, Default, Description) \ 2507 code = hash_combine(code, LangOpts->Name); 2508 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2509 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2510 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2511 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2512 #include "clang/Basic/LangOptions.def" 2513 2514 for (StringRef Feature : LangOpts->ModuleFeatures) 2515 code = hash_combine(code, Feature); 2516 2517 // Extend the signature with the target options. 2518 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2519 TargetOpts->ABI); 2520 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2521 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2522 2523 // Extend the signature with preprocessor options. 2524 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2525 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2526 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2527 2528 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2529 I = getPreprocessorOpts().Macros.begin(), 2530 IEnd = getPreprocessorOpts().Macros.end(); 2531 I != IEnd; ++I) { 2532 // If we're supposed to ignore this macro for the purposes of modules, 2533 // don't put it into the hash. 2534 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2535 // Check whether we're ignoring this macro. 2536 StringRef MacroDef = I->first; 2537 if (hsOpts.ModulesIgnoreMacros.count( 2538 llvm::CachedHashString(MacroDef.split('=').first))) 2539 continue; 2540 } 2541 2542 code = hash_combine(code, I->first, I->second); 2543 } 2544 2545 // Extend the signature with the sysroot and other header search options. 2546 code = hash_combine(code, hsOpts.Sysroot, 2547 hsOpts.ModuleFormat, 2548 hsOpts.UseDebugInfo, 2549 hsOpts.UseBuiltinIncludes, 2550 hsOpts.UseStandardSystemIncludes, 2551 hsOpts.UseStandardCXXIncludes, 2552 hsOpts.UseLibcxx, 2553 hsOpts.ModulesValidateDiagnosticOptions); 2554 code = hash_combine(code, hsOpts.ResourceDir); 2555 2556 // Extend the signature with the user build path. 2557 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2558 2559 // Extend the signature with the module file extensions. 2560 const FrontendOptions &frontendOpts = getFrontendOpts(); 2561 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2562 code = ext->hashExtension(code); 2563 } 2564 2565 // Darwin-specific hack: if we have a sysroot, use the contents and 2566 // modification time of 2567 // $sysroot/System/Library/CoreServices/SystemVersion.plist 2568 // as part of the module hash. 2569 if (!hsOpts.Sysroot.empty()) { 2570 SmallString<128> systemVersionFile; 2571 systemVersionFile += hsOpts.Sysroot; 2572 llvm::sys::path::append(systemVersionFile, "System"); 2573 llvm::sys::path::append(systemVersionFile, "Library"); 2574 llvm::sys::path::append(systemVersionFile, "CoreServices"); 2575 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 2576 2577 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 2578 llvm::MemoryBuffer::getFile(systemVersionFile); 2579 if (buffer) { 2580 code = hash_combine(code, buffer.get()->getBuffer()); 2581 2582 struct stat statBuf; 2583 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 2584 code = hash_combine(code, statBuf.st_mtime); 2585 } 2586 } 2587 2588 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2589 } 2590 2591 namespace clang { 2592 2593 template<typename IntTy> 2594 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2595 IntTy Default, 2596 DiagnosticsEngine *Diags) { 2597 IntTy Res = Default; 2598 if (Arg *A = Args.getLastArg(Id)) { 2599 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2600 if (Diags) 2601 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2602 << A->getValue(); 2603 } 2604 } 2605 return Res; 2606 } 2607 2608 2609 // Declared in clang/Frontend/Utils.h. 2610 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2611 DiagnosticsEngine *Diags) { 2612 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2613 } 2614 2615 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2616 uint64_t Default, 2617 DiagnosticsEngine *Diags) { 2618 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2619 } 2620 2621 void BuryPointer(const void *Ptr) { 2622 // This function may be called only a small fixed amount of times per each 2623 // invocation, otherwise we do actually have a leak which we want to report. 2624 // If this function is called more than kGraveYardMaxSize times, the pointers 2625 // will not be properly buried and a leak detector will report a leak, which 2626 // is what we want in such case. 2627 static const size_t kGraveYardMaxSize = 16; 2628 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2629 static std::atomic<unsigned> GraveYardSize; 2630 unsigned Idx = GraveYardSize++; 2631 if (Idx >= kGraveYardMaxSize) 2632 return; 2633 GraveYard[Idx] = Ptr; 2634 } 2635 2636 IntrusiveRefCntPtr<vfs::FileSystem> 2637 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2638 DiagnosticsEngine &Diags) { 2639 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2640 return vfs::getRealFileSystem(); 2641 2642 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2643 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2644 // earlier vfs files are on the bottom 2645 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2646 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2647 llvm::MemoryBuffer::getFile(File); 2648 if (!Buffer) { 2649 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2650 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2651 } 2652 2653 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2654 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2655 if (!FS.get()) { 2656 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2657 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2658 } 2659 Overlay->pushOverlay(FS); 2660 } 2661 return Overlay; 2662 } 2663 } // end namespace clang 2664