1 //===--- CompilerInvocation.cpp -------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Frontend/CompilerInvocation.h" 11 #include "TestModuleFileExtension.h" 12 #include "clang/Basic/Builtins.h" 13 #include "clang/Basic/FileManager.h" 14 #include "clang/Basic/Version.h" 15 #include "clang/Config/config.h" 16 #include "clang/Driver/DriverDiagnostic.h" 17 #include "clang/Driver/Options.h" 18 #include "clang/Driver/Util.h" 19 #include "clang/Frontend/FrontendDiagnostic.h" 20 #include "clang/Frontend/LangStandard.h" 21 #include "clang/Frontend/Utils.h" 22 #include "clang/Lex/HeaderSearchOptions.h" 23 #include "clang/Lex/PreprocessorOptions.h" 24 #include "clang/Serialization/ASTReader.h" 25 #include "clang/Serialization/ModuleFileExtension.h" 26 #include "llvm/ADT/Hashing.h" 27 #include "llvm/ADT/STLExtras.h" 28 #include "llvm/ADT/SmallVector.h" 29 #include "llvm/ADT/StringExtras.h" 30 #include "llvm/ADT/StringSwitch.h" 31 #include "llvm/ADT/Triple.h" 32 #include "llvm/Linker/Linker.h" 33 #include "llvm/Option/Arg.h" 34 #include "llvm/Option/ArgList.h" 35 #include "llvm/Option/OptTable.h" 36 #include "llvm/Option/Option.h" 37 #include "llvm/ProfileData/InstrProfReader.h" 38 #include "llvm/Support/CodeGen.h" 39 #include "llvm/Support/ErrorHandling.h" 40 #include "llvm/Support/FileSystem.h" 41 #include "llvm/Support/Host.h" 42 #include "llvm/Support/Path.h" 43 #include "llvm/Support/Process.h" 44 #include "llvm/Target/TargetOptions.h" 45 #include "llvm/Support/ScopedPrinter.h" 46 #include <atomic> 47 #include <memory> 48 #include <sys/stat.h> 49 #include <system_error> 50 using namespace clang; 51 52 //===----------------------------------------------------------------------===// 53 // Initialization. 54 //===----------------------------------------------------------------------===// 55 56 CompilerInvocationBase::CompilerInvocationBase() 57 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 58 DiagnosticOpts(new DiagnosticOptions()), 59 HeaderSearchOpts(new HeaderSearchOptions()), 60 PreprocessorOpts(new PreprocessorOptions()) {} 61 62 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 63 : LangOpts(new LangOptions(*X.getLangOpts())), 64 TargetOpts(new TargetOptions(X.getTargetOpts())), 65 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 66 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 67 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 68 69 CompilerInvocationBase::~CompilerInvocationBase() {} 70 71 //===----------------------------------------------------------------------===// 72 // Deserialization (from args) 73 //===----------------------------------------------------------------------===// 74 75 using namespace clang::driver; 76 using namespace clang::driver::options; 77 using namespace llvm::opt; 78 79 // 80 81 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 82 DiagnosticsEngine &Diags) { 83 unsigned DefaultOpt = 0; 84 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 85 DefaultOpt = 2; 86 87 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 88 if (A->getOption().matches(options::OPT_O0)) 89 return 0; 90 91 if (A->getOption().matches(options::OPT_Ofast)) 92 return 3; 93 94 assert (A->getOption().matches(options::OPT_O)); 95 96 StringRef S(A->getValue()); 97 if (S == "s" || S == "z" || S.empty()) 98 return 2; 99 100 if (S == "g") 101 return 1; 102 103 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 104 } 105 106 return DefaultOpt; 107 } 108 109 static unsigned getOptimizationLevelSize(ArgList &Args) { 110 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 111 if (A->getOption().matches(options::OPT_O)) { 112 switch (A->getValue()[0]) { 113 default: 114 return 0; 115 case 's': 116 return 1; 117 case 'z': 118 return 2; 119 } 120 } 121 } 122 return 0; 123 } 124 125 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 126 OptSpecifier GroupWithValue, 127 std::vector<std::string> &Diagnostics) { 128 for (Arg *A : Args.filtered(Group)) { 129 if (A->getOption().getKind() == Option::FlagClass) { 130 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 131 // its name (minus the "W" or "R" at the beginning) to the warning list. 132 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 133 } else if (A->getOption().matches(GroupWithValue)) { 134 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 135 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 136 } else { 137 // Otherwise, add its value (for OPT_W_Joined and similar). 138 for (const char *Arg : A->getValues()) 139 Diagnostics.emplace_back(Arg); 140 } 141 } 142 } 143 144 static void getAllNoBuiltinFuncValues(ArgList &Args, 145 std::vector<std::string> &Funcs) { 146 SmallVector<const char *, 8> Values; 147 for (const auto &Arg : Args) { 148 const Option &O = Arg->getOption(); 149 if (O.matches(options::OPT_fno_builtin_)) { 150 const char *FuncName = Arg->getValue(); 151 if (Builtin::Context::isBuiltinFunc(FuncName)) 152 Values.push_back(FuncName); 153 } 154 } 155 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 156 } 157 158 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 159 DiagnosticsEngine &Diags) { 160 using namespace options; 161 bool Success = true; 162 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 163 StringRef Name = A->getValue(); 164 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 165 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 166 .Case(CMDFLAG, NAME##Model) 167 #include "clang/StaticAnalyzer/Core/Analyses.def" 168 .Default(NumStores); 169 if (Value == NumStores) { 170 Diags.Report(diag::err_drv_invalid_value) 171 << A->getAsString(Args) << Name; 172 Success = false; 173 } else { 174 Opts.AnalysisStoreOpt = Value; 175 } 176 } 177 178 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 179 StringRef Name = A->getValue(); 180 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 181 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 182 .Case(CMDFLAG, NAME##Model) 183 #include "clang/StaticAnalyzer/Core/Analyses.def" 184 .Default(NumConstraints); 185 if (Value == NumConstraints) { 186 Diags.Report(diag::err_drv_invalid_value) 187 << A->getAsString(Args) << Name; 188 Success = false; 189 } else { 190 Opts.AnalysisConstraintsOpt = Value; 191 } 192 } 193 194 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 195 StringRef Name = A->getValue(); 196 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 197 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 198 .Case(CMDFLAG, PD_##NAME) 199 #include "clang/StaticAnalyzer/Core/Analyses.def" 200 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 201 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 202 Diags.Report(diag::err_drv_invalid_value) 203 << A->getAsString(Args) << Name; 204 Success = false; 205 } else { 206 Opts.AnalysisDiagOpt = Value; 207 } 208 } 209 210 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 211 StringRef Name = A->getValue(); 212 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 213 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 214 .Case(CMDFLAG, NAME) 215 #include "clang/StaticAnalyzer/Core/Analyses.def" 216 .Default(NumPurgeModes); 217 if (Value == NumPurgeModes) { 218 Diags.Report(diag::err_drv_invalid_value) 219 << A->getAsString(Args) << Name; 220 Success = false; 221 } else { 222 Opts.AnalysisPurgeOpt = Value; 223 } 224 } 225 226 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 227 StringRef Name = A->getValue(); 228 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 229 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 230 .Case(CMDFLAG, NAME) 231 #include "clang/StaticAnalyzer/Core/Analyses.def" 232 .Default(NumInliningModes); 233 if (Value == NumInliningModes) { 234 Diags.Report(diag::err_drv_invalid_value) 235 << A->getAsString(Args) << Name; 236 Success = false; 237 } else { 238 Opts.InliningMode = Value; 239 } 240 } 241 242 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 243 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 244 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 245 246 Opts.visualizeExplodedGraphWithGraphViz = 247 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 248 Opts.visualizeExplodedGraphWithUbiGraph = 249 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 250 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 251 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 252 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 253 Opts.AnalyzeNestedBlocks = 254 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 255 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 256 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 257 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 258 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 259 Opts.maxBlockVisitOnPath = 260 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 261 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 262 Opts.InlineMaxStackDepth = 263 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 264 Opts.InlineMaxStackDepth, Diags); 265 266 Opts.CheckersControlList.clear(); 267 for (const Arg *A : 268 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 269 A->claim(); 270 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 271 // We can have a list of comma separated checker names, e.g: 272 // '-analyzer-checker=cocoa,unix' 273 StringRef checkerList = A->getValue(); 274 SmallVector<StringRef, 4> checkers; 275 checkerList.split(checkers, ","); 276 for (StringRef checker : checkers) 277 Opts.CheckersControlList.emplace_back(checker, enable); 278 } 279 280 // Go through the analyzer configuration options. 281 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 282 A->claim(); 283 // We can have a list of comma separated config names, e.g: 284 // '-analyzer-config key1=val1,key2=val2' 285 StringRef configList = A->getValue(); 286 SmallVector<StringRef, 4> configVals; 287 configList.split(configVals, ","); 288 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 289 StringRef key, val; 290 std::tie(key, val) = configVals[i].split("="); 291 if (val.empty()) { 292 Diags.Report(SourceLocation(), 293 diag::err_analyzer_config_no_value) << configVals[i]; 294 Success = false; 295 break; 296 } 297 if (val.find('=') != StringRef::npos) { 298 Diags.Report(SourceLocation(), 299 diag::err_analyzer_config_multiple_values) 300 << configVals[i]; 301 Success = false; 302 break; 303 } 304 Opts.Config[key] = val; 305 } 306 } 307 308 return Success; 309 } 310 311 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 312 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 313 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 314 return true; 315 } 316 317 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 318 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 319 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 320 } 321 322 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 323 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 324 StringRef Value = A->getValue(); 325 if (Value == "small" || Value == "kernel" || Value == "medium" || 326 Value == "large") 327 return Value; 328 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 329 } 330 return "default"; 331 } 332 333 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 334 /// It returns a pointer to the newly generated Regex instance. 335 static std::shared_ptr<llvm::Regex> 336 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 337 Arg *RpassArg) { 338 StringRef Val = RpassArg->getValue(); 339 std::string RegexError; 340 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 341 if (!Pattern->isValid(RegexError)) { 342 Diags.Report(diag::err_drv_optimization_remark_pattern) 343 << RegexError << RpassArg->getAsString(Args); 344 Pattern.reset(); 345 } 346 return Pattern; 347 } 348 349 static bool parseDiagnosticLevelMask(StringRef FlagName, 350 const std::vector<std::string> &Levels, 351 DiagnosticsEngine *Diags, 352 DiagnosticLevelMask &M) { 353 bool Success = true; 354 for (const auto &Level : Levels) { 355 DiagnosticLevelMask const PM = 356 llvm::StringSwitch<DiagnosticLevelMask>(Level) 357 .Case("note", DiagnosticLevelMask::Note) 358 .Case("remark", DiagnosticLevelMask::Remark) 359 .Case("warning", DiagnosticLevelMask::Warning) 360 .Case("error", DiagnosticLevelMask::Error) 361 .Default(DiagnosticLevelMask::None); 362 if (PM == DiagnosticLevelMask::None) { 363 Success = false; 364 if (Diags) 365 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 366 } 367 M = M | PM; 368 } 369 return Success; 370 } 371 372 static void parseSanitizerKinds(StringRef FlagName, 373 const std::vector<std::string> &Sanitizers, 374 DiagnosticsEngine &Diags, SanitizerSet &S) { 375 for (const auto &Sanitizer : Sanitizers) { 376 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 377 if (K == 0) 378 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 379 else 380 S.set(K, true); 381 } 382 } 383 384 // Set the profile kind for fprofile-instrument. 385 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 386 DiagnosticsEngine &Diags) { 387 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 388 if (A == nullptr) 389 return; 390 StringRef S = A->getValue(); 391 unsigned I = llvm::StringSwitch<unsigned>(S) 392 .Case("none", CodeGenOptions::ProfileNone) 393 .Case("clang", CodeGenOptions::ProfileClangInstr) 394 .Case("llvm", CodeGenOptions::ProfileIRInstr) 395 .Default(~0U); 396 if (I == ~0U) { 397 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 398 << S; 399 return; 400 } 401 CodeGenOptions::ProfileInstrKind Instrumentor = 402 static_cast<CodeGenOptions::ProfileInstrKind>(I); 403 Opts.setProfileInstr(Instrumentor); 404 } 405 406 // Set the profile kind using fprofile-instrument-use-path. 407 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 408 const Twine &ProfileName) { 409 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 410 // In error, return silently and let Clang PGOUse report the error message. 411 if (auto E = ReaderOrErr.takeError()) { 412 llvm::consumeError(std::move(E)); 413 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 414 return; 415 } 416 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 417 std::move(ReaderOrErr.get()); 418 if (PGOReader->isIRLevelProfile()) 419 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 420 else 421 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 422 } 423 424 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 425 DiagnosticsEngine &Diags, 426 const TargetOptions &TargetOpts) { 427 using namespace options; 428 bool Success = true; 429 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 430 431 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 432 // TODO: This could be done in Driver 433 unsigned MaxOptLevel = 3; 434 if (OptimizationLevel > MaxOptLevel) { 435 // If the optimization level is not supported, fall back on the default 436 // optimization 437 Diags.Report(diag::warn_drv_optimization_value) 438 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 439 OptimizationLevel = MaxOptLevel; 440 } 441 Opts.OptimizationLevel = OptimizationLevel; 442 443 // At O0 we want to fully disable inlining outside of cases marked with 444 // 'alwaysinline' that are required for correctness. 445 Opts.setInlining((Opts.OptimizationLevel == 0) 446 ? CodeGenOptions::OnlyAlwaysInlining 447 : CodeGenOptions::NormalInlining); 448 // Explicit inlining flags can disable some or all inlining even at 449 // optimization levels above zero. 450 if (Arg *InlineArg = Args.getLastArg( 451 options::OPT_finline_functions, options::OPT_finline_hint_functions, 452 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 453 if (Opts.OptimizationLevel > 0) { 454 const Option &InlineOpt = InlineArg->getOption(); 455 if (InlineOpt.matches(options::OPT_finline_functions)) 456 Opts.setInlining(CodeGenOptions::NormalInlining); 457 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 458 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 459 else 460 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 461 } 462 } 463 464 Opts.ExperimentalNewPassManager = Args.hasFlag( 465 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 466 /* Default */ false); 467 468 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 469 StringRef Name = A->getValue(); 470 if (Name == "Accelerate") 471 Opts.setVecLib(CodeGenOptions::Accelerate); 472 else if (Name == "SVML") 473 Opts.setVecLib(CodeGenOptions::SVML); 474 else if (Name == "none") 475 Opts.setVecLib(CodeGenOptions::NoLibrary); 476 else 477 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 478 } 479 480 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 481 unsigned Val = 482 llvm::StringSwitch<unsigned>(A->getValue()) 483 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 484 .Case("limited", codegenoptions::LimitedDebugInfo) 485 .Case("standalone", codegenoptions::FullDebugInfo) 486 .Default(~0U); 487 if (Val == ~0U) 488 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 489 << A->getValue(); 490 else 491 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 492 } 493 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 494 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 495 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 496 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 497 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 498 .Default(~0U); 499 if (Val == ~0U) 500 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 501 << A->getValue(); 502 else 503 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 504 } 505 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 506 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 507 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 508 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 509 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 510 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 511 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 512 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 513 Opts.DebugExplicitImport = Triple.isPS4CPU(); 514 515 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 516 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 517 518 if (const Arg *A = 519 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 520 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 521 522 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 523 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 524 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 525 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 526 OPT_fuse_register_sized_bitfield_access); 527 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 528 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 529 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 530 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 531 Opts.NoCommon = Args.hasArg(OPT_fno_common); 532 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 533 Opts.OptimizeSize = getOptimizationLevelSize(Args); 534 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 535 Args.hasArg(OPT_ffreestanding)); 536 if (Opts.SimplifyLibCalls) 537 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 538 Opts.UnrollLoops = 539 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 540 (Opts.OptimizationLevel > 1)); 541 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 542 543 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 544 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 545 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 546 547 setPGOInstrumentor(Opts, Args, Diags); 548 Opts.InstrProfileOutput = 549 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 550 Opts.ProfileInstrumentUsePath = 551 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 552 if (!Opts.ProfileInstrumentUsePath.empty()) 553 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 554 555 Opts.CoverageMapping = 556 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 557 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 558 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 559 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 560 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 561 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 562 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 563 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 564 Opts.CodeModel = getCodeModel(Args, Diags); 565 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 566 Opts.DisableFPElim = 567 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 568 Opts.DisableFree = Args.hasArg(OPT_disable_free); 569 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 570 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 571 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 572 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 573 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 574 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 575 Args.hasArg(OPT_cl_finite_math_only) || 576 Args.hasArg(OPT_cl_fast_relaxed_math)); 577 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 578 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 579 Args.hasArg(OPT_cl_finite_math_only) || 580 Args.hasArg(OPT_cl_fast_relaxed_math)); 581 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 582 Args.hasArg(OPT_cl_no_signed_zeros)); 583 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 584 Opts.CorrectlyRoundedDivSqrt = 585 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 586 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 587 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 588 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 589 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 590 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 591 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 592 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 593 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 594 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 595 Opts.IncrementalLinkerCompatible = 596 Args.hasArg(OPT_mincremental_linker_compatible); 597 Opts.PIECopyRelocations = 598 Args.hasArg(OPT_mpie_copy_relocations); 599 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 600 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 601 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 602 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 603 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 604 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 605 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 606 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 607 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 608 Args.hasArg(OPT_cl_fast_relaxed_math); 609 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 610 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 611 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 612 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 613 Diags.Report(diag::err_drv_invalid_value) 614 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 615 << Opts.ThreadModel; 616 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 617 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 618 619 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 620 OPT_fno_function_sections, false); 621 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 622 OPT_fno_data_sections, false); 623 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 624 OPT_fno_unique_section_names, true); 625 626 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 627 628 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 629 630 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 631 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ); 632 Opts.EmitSummaryIndex = A && A->containsValue("thin"); 633 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 634 if (IK != IK_LLVM_IR) 635 Diags.Report(diag::err_drv_argument_only_allowed_with) 636 << A->getAsString(Args) << "-x ir"; 637 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 638 } 639 640 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 641 642 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 643 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 644 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 645 646 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 647 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 648 649 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 650 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 651 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 652 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 653 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 654 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 655 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 656 Opts.CoverageNoFunctionNamesInData = 657 Args.hasArg(OPT_coverage_no_function_names_in_data); 658 Opts.CoverageExitBlockBeforeBody = 659 Args.hasArg(OPT_coverage_exit_block_before_body); 660 if (Args.hasArg(OPT_coverage_version_EQ)) { 661 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 662 if (CoverageVersion.size() != 4) { 663 Diags.Report(diag::err_drv_invalid_value) 664 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 665 << CoverageVersion; 666 } else { 667 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 668 } 669 } 670 } 671 // Handle -fembed-bitcode option. 672 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 673 StringRef Name = A->getValue(); 674 unsigned Model = llvm::StringSwitch<unsigned>(Name) 675 .Case("off", CodeGenOptions::Embed_Off) 676 .Case("all", CodeGenOptions::Embed_All) 677 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 678 .Case("marker", CodeGenOptions::Embed_Marker) 679 .Default(~0U); 680 if (Model == ~0U) { 681 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 682 Success = false; 683 } else 684 Opts.setEmbedBitcode( 685 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 686 } 687 // FIXME: For backend options that are not yet recorded as function 688 // attributes in the IR, keep track of them so we can embed them in a 689 // separate data section and use them when building the bitcode. 690 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 691 for (const auto &A : Args) { 692 // Do not encode output and input. 693 if (A->getOption().getID() == options::OPT_o || 694 A->getOption().getID() == options::OPT_INPUT || 695 A->getOption().getID() == options::OPT_x || 696 A->getOption().getID() == options::OPT_fembed_bitcode || 697 (A->getOption().getGroup().isValid() && 698 A->getOption().getGroup().getID() == options::OPT_W_Group)) 699 continue; 700 ArgStringList ASL; 701 A->render(Args, ASL); 702 for (const auto &arg : ASL) { 703 StringRef ArgStr(arg); 704 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 705 // using \00 to seperate each commandline options. 706 Opts.CmdArgs.push_back('\0'); 707 } 708 } 709 } 710 711 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 712 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 713 Opts.XRayInstructionThreshold = 714 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_, 200, Diags); 715 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 716 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 717 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 718 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 719 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 720 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 721 unsigned LinkFlags = llvm::Linker::Flags::None; 722 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) 723 LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded | 724 llvm::Linker::Flags::InternalizeLinkedSymbols; 725 Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue())); 726 } 727 Opts.SanitizeCoverageType = 728 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 729 Opts.SanitizeCoverageIndirectCalls = 730 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 731 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 732 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 733 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 734 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 735 Opts.SanitizeCoverage8bitCounters = 736 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 737 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 738 Opts.SanitizeCoverageTracePCGuard = 739 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 740 Opts.SanitizeMemoryTrackOrigins = 741 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 742 Opts.SanitizeMemoryUseAfterDtor = 743 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 744 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 745 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 746 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 747 OPT_fno_sanitize_address_use_after_scope)) { 748 Opts.SanitizeAddressUseAfterScope = 749 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 750 } 751 Opts.SSPBufferSize = 752 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 753 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 754 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 755 StringRef Val = A->getValue(); 756 unsigned StackAlignment = Opts.StackAlignment; 757 Val.getAsInteger(10, StackAlignment); 758 Opts.StackAlignment = StackAlignment; 759 } 760 761 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 762 StringRef Val = A->getValue(); 763 unsigned StackProbeSize = Opts.StackProbeSize; 764 Val.getAsInteger(0, StackProbeSize); 765 Opts.StackProbeSize = StackProbeSize; 766 } 767 768 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 769 StringRef Name = A->getValue(); 770 unsigned Method = llvm::StringSwitch<unsigned>(Name) 771 .Case("legacy", CodeGenOptions::Legacy) 772 .Case("non-legacy", CodeGenOptions::NonLegacy) 773 .Case("mixed", CodeGenOptions::Mixed) 774 .Default(~0U); 775 if (Method == ~0U) { 776 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 777 Success = false; 778 } else { 779 Opts.setObjCDispatchMethod( 780 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 781 } 782 } 783 784 Opts.EmulatedTLS = 785 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 786 787 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 788 StringRef Name = A->getValue(); 789 unsigned Model = llvm::StringSwitch<unsigned>(Name) 790 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 791 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 792 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 793 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 794 .Default(~0U); 795 if (Model == ~0U) { 796 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 797 Success = false; 798 } else { 799 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 800 } 801 } 802 803 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 804 StringRef Val = A->getValue(); 805 if (Val == "fast") 806 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 807 else if (Val == "on") 808 Opts.setFPContractMode(CodeGenOptions::FPC_On); 809 else if (Val == "off") 810 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 811 else 812 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 813 } 814 815 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 816 StringRef Val = A->getValue(); 817 if (Val == "ieee") 818 Opts.FPDenormalMode = "ieee"; 819 else if (Val == "preserve-sign") 820 Opts.FPDenormalMode = "preserve-sign"; 821 else if (Val == "positive-zero") 822 Opts.FPDenormalMode = "positive-zero"; 823 else 824 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 825 } 826 827 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 828 if (A->getOption().matches(OPT_fpcc_struct_return)) { 829 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 830 } else { 831 assert(A->getOption().matches(OPT_freg_struct_return)); 832 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 833 } 834 } 835 836 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 837 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 838 bool NeedLocTracking = false; 839 840 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 841 if (!Opts.OptRecordFile.empty()) 842 NeedLocTracking = true; 843 844 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 845 Opts.OptimizationRemarkPattern = 846 GenerateOptimizationRemarkRegex(Diags, Args, A); 847 NeedLocTracking = true; 848 } 849 850 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 851 Opts.OptimizationRemarkMissedPattern = 852 GenerateOptimizationRemarkRegex(Diags, Args, A); 853 NeedLocTracking = true; 854 } 855 856 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 857 Opts.OptimizationRemarkAnalysisPattern = 858 GenerateOptimizationRemarkRegex(Diags, Args, A); 859 NeedLocTracking = true; 860 } 861 862 Opts.DiagnosticsWithHotness = 863 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 864 if (Opts.DiagnosticsWithHotness && 865 Opts.getProfileUse() == CodeGenOptions::ProfileNone) 866 Diags.Report(diag::warn_drv_fdiagnostics_show_hotness_requires_pgo); 867 868 // If the user requested to use a sample profile for PGO, then the 869 // backend will need to track source location information so the profile 870 // can be incorporated into the IR. 871 if (!Opts.SampleProfileFile.empty()) 872 NeedLocTracking = true; 873 874 // If the user requested a flag that requires source locations available in 875 // the backend, make sure that the backend tracks source location information. 876 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 877 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 878 879 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 880 881 // Parse -fsanitize-recover= arguments. 882 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 883 parseSanitizerKinds("-fsanitize-recover=", 884 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 885 Opts.SanitizeRecover); 886 parseSanitizerKinds("-fsanitize-trap=", 887 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 888 Opts.SanitizeTrap); 889 890 Opts.CudaGpuBinaryFileNames = 891 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 892 893 Opts.Backchain = Args.hasArg(OPT_mbackchain); 894 895 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 896 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 897 898 return Success; 899 } 900 901 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 902 ArgList &Args) { 903 using namespace options; 904 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 905 Opts.Targets = Args.getAllArgValues(OPT_MT); 906 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 907 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 908 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 909 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 910 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 911 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 912 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 913 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 914 Opts.ModuleDependencyOutputDir = 915 Args.getLastArgValue(OPT_module_dependency_dir); 916 if (Args.hasArg(OPT_MV)) 917 Opts.OutputFormat = DependencyOutputFormat::NMake; 918 // Add sanitizer blacklists as extra dependencies. 919 // They won't be discovered by the regular preprocessor, so 920 // we let make / ninja to know about this implicit dependency. 921 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 922 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 923 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 924 ModuleFiles.end()); 925 } 926 927 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 928 // Color diagnostics default to auto ("on" if terminal supports) in the driver 929 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 930 // Support both clang's -f[no-]color-diagnostics and gcc's 931 // -f[no-]diagnostics-colors[=never|always|auto]. 932 enum { 933 Colors_On, 934 Colors_Off, 935 Colors_Auto 936 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 937 for (Arg *A : Args) { 938 const Option &O = A->getOption(); 939 if (O.matches(options::OPT_fcolor_diagnostics) || 940 O.matches(options::OPT_fdiagnostics_color)) { 941 ShowColors = Colors_On; 942 } else if (O.matches(options::OPT_fno_color_diagnostics) || 943 O.matches(options::OPT_fno_diagnostics_color)) { 944 ShowColors = Colors_Off; 945 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 946 StringRef Value(A->getValue()); 947 if (Value == "always") 948 ShowColors = Colors_On; 949 else if (Value == "never") 950 ShowColors = Colors_Off; 951 else if (Value == "auto") 952 ShowColors = Colors_Auto; 953 } 954 } 955 return ShowColors == Colors_On || 956 (ShowColors == Colors_Auto && 957 llvm::sys::Process::StandardErrHasColors()); 958 } 959 960 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 961 DiagnosticsEngine *Diags, 962 bool DefaultDiagColor, bool DefaultShowOpt) { 963 using namespace options; 964 bool Success = true; 965 966 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 967 if (Arg *A = 968 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 969 Opts.DiagnosticSerializationFile = A->getValue(); 970 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 971 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 972 Opts.Pedantic = Args.hasArg(OPT_pedantic); 973 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 974 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 975 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 976 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 977 OPT_fno_show_column, 978 /*Default=*/true); 979 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 980 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 981 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 982 Opts.ShowOptionNames = 983 Args.hasFlag(OPT_fdiagnostics_show_option, 984 OPT_fno_diagnostics_show_option, DefaultShowOpt); 985 986 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 987 988 // Default behavior is to not to show note include stacks. 989 Opts.ShowNoteIncludeStack = false; 990 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 991 OPT_fno_diagnostics_show_note_include_stack)) 992 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 993 Opts.ShowNoteIncludeStack = true; 994 995 StringRef ShowOverloads = 996 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 997 if (ShowOverloads == "best") 998 Opts.setShowOverloads(Ovl_Best); 999 else if (ShowOverloads == "all") 1000 Opts.setShowOverloads(Ovl_All); 1001 else { 1002 Success = false; 1003 if (Diags) 1004 Diags->Report(diag::err_drv_invalid_value) 1005 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1006 << ShowOverloads; 1007 } 1008 1009 StringRef ShowCategory = 1010 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1011 if (ShowCategory == "none") 1012 Opts.ShowCategories = 0; 1013 else if (ShowCategory == "id") 1014 Opts.ShowCategories = 1; 1015 else if (ShowCategory == "name") 1016 Opts.ShowCategories = 2; 1017 else { 1018 Success = false; 1019 if (Diags) 1020 Diags->Report(diag::err_drv_invalid_value) 1021 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1022 << ShowCategory; 1023 } 1024 1025 StringRef Format = 1026 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1027 if (Format == "clang") 1028 Opts.setFormat(DiagnosticOptions::Clang); 1029 else if (Format == "msvc") 1030 Opts.setFormat(DiagnosticOptions::MSVC); 1031 else if (Format == "msvc-fallback") { 1032 Opts.setFormat(DiagnosticOptions::MSVC); 1033 Opts.CLFallbackMode = true; 1034 } else if (Format == "vi") 1035 Opts.setFormat(DiagnosticOptions::Vi); 1036 else { 1037 Success = false; 1038 if (Diags) 1039 Diags->Report(diag::err_drv_invalid_value) 1040 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1041 << Format; 1042 } 1043 1044 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1045 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1046 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1047 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1048 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1049 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1050 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1051 Diags, DiagMask); 1052 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1053 DiagMask = DiagnosticLevelMask::All; 1054 Opts.setVerifyIgnoreUnexpected(DiagMask); 1055 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1056 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1057 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1058 Opts.MacroBacktraceLimit = 1059 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1060 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1061 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1062 Args, OPT_ftemplate_backtrace_limit, 1063 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1064 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1065 Args, OPT_fconstexpr_backtrace_limit, 1066 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1067 Opts.SpellCheckingLimit = getLastArgIntValue( 1068 Args, OPT_fspell_checking_limit, 1069 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1070 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1071 DiagnosticOptions::DefaultTabStop, Diags); 1072 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1073 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1074 if (Diags) 1075 Diags->Report(diag::warn_ignoring_ftabstop_value) 1076 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1077 } 1078 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1079 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1080 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1081 1082 return Success; 1083 } 1084 1085 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1086 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1087 } 1088 1089 /// Parse the argument to the -ftest-module-file-extension 1090 /// command-line argument. 1091 /// 1092 /// \returns true on error, false on success. 1093 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1094 std::string &BlockName, 1095 unsigned &MajorVersion, 1096 unsigned &MinorVersion, 1097 bool &Hashed, 1098 std::string &UserInfo) { 1099 SmallVector<StringRef, 5> Args; 1100 Arg.split(Args, ':', 5); 1101 if (Args.size() < 5) 1102 return true; 1103 1104 BlockName = Args[0]; 1105 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1106 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1107 if (Args[3].getAsInteger(2, Hashed)) return true; 1108 if (Args.size() > 4) 1109 UserInfo = Args[4]; 1110 return false; 1111 } 1112 1113 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1114 DiagnosticsEngine &Diags, 1115 bool &IsHeaderFile) { 1116 using namespace options; 1117 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1118 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1119 switch (A->getOption().getID()) { 1120 default: 1121 llvm_unreachable("Invalid option in group!"); 1122 case OPT_ast_list: 1123 Opts.ProgramAction = frontend::ASTDeclList; break; 1124 case OPT_ast_dump: 1125 case OPT_ast_dump_lookups: 1126 Opts.ProgramAction = frontend::ASTDump; break; 1127 case OPT_ast_print: 1128 Opts.ProgramAction = frontend::ASTPrint; break; 1129 case OPT_ast_view: 1130 Opts.ProgramAction = frontend::ASTView; break; 1131 case OPT_dump_raw_tokens: 1132 Opts.ProgramAction = frontend::DumpRawTokens; break; 1133 case OPT_dump_tokens: 1134 Opts.ProgramAction = frontend::DumpTokens; break; 1135 case OPT_S: 1136 Opts.ProgramAction = frontend::EmitAssembly; break; 1137 case OPT_emit_llvm_bc: 1138 Opts.ProgramAction = frontend::EmitBC; break; 1139 case OPT_emit_html: 1140 Opts.ProgramAction = frontend::EmitHTML; break; 1141 case OPT_emit_llvm: 1142 Opts.ProgramAction = frontend::EmitLLVM; break; 1143 case OPT_emit_llvm_only: 1144 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1145 case OPT_emit_codegen_only: 1146 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1147 case OPT_emit_obj: 1148 Opts.ProgramAction = frontend::EmitObj; break; 1149 case OPT_fixit_EQ: 1150 Opts.FixItSuffix = A->getValue(); 1151 // fall-through! 1152 case OPT_fixit: 1153 Opts.ProgramAction = frontend::FixIt; break; 1154 case OPT_emit_module: 1155 Opts.ProgramAction = frontend::GenerateModule; break; 1156 case OPT_emit_module_interface: 1157 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1158 case OPT_emit_pch: 1159 Opts.ProgramAction = frontend::GeneratePCH; break; 1160 case OPT_emit_pth: 1161 Opts.ProgramAction = frontend::GeneratePTH; break; 1162 case OPT_init_only: 1163 Opts.ProgramAction = frontend::InitOnly; break; 1164 case OPT_fsyntax_only: 1165 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1166 case OPT_module_file_info: 1167 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1168 case OPT_verify_pch: 1169 Opts.ProgramAction = frontend::VerifyPCH; break; 1170 case OPT_print_decl_contexts: 1171 Opts.ProgramAction = frontend::PrintDeclContext; break; 1172 case OPT_print_preamble: 1173 Opts.ProgramAction = frontend::PrintPreamble; break; 1174 case OPT_E: 1175 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1176 case OPT_rewrite_macros: 1177 Opts.ProgramAction = frontend::RewriteMacros; break; 1178 case OPT_rewrite_objc: 1179 Opts.ProgramAction = frontend::RewriteObjC; break; 1180 case OPT_rewrite_test: 1181 Opts.ProgramAction = frontend::RewriteTest; break; 1182 case OPT_analyze: 1183 Opts.ProgramAction = frontend::RunAnalysis; break; 1184 case OPT_migrate: 1185 Opts.ProgramAction = frontend::MigrateSource; break; 1186 case OPT_Eonly: 1187 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1188 } 1189 } 1190 1191 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1192 Opts.Plugins.emplace_back(A->getValue(0)); 1193 Opts.ProgramAction = frontend::PluginAction; 1194 Opts.ActionName = A->getValue(); 1195 } 1196 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1197 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1198 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1199 1200 for (const std::string &Arg : 1201 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1202 std::string BlockName; 1203 unsigned MajorVersion; 1204 unsigned MinorVersion; 1205 bool Hashed; 1206 std::string UserInfo; 1207 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1208 MinorVersion, Hashed, UserInfo)) { 1209 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1210 1211 continue; 1212 } 1213 1214 // Add the testing module file extension. 1215 Opts.ModuleFileExtensions.push_back( 1216 std::make_shared<TestModuleFileExtension>( 1217 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1218 } 1219 1220 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1221 Opts.CodeCompletionAt = 1222 ParsedSourceLocation::FromString(A->getValue()); 1223 if (Opts.CodeCompletionAt.FileName.empty()) 1224 Diags.Report(diag::err_drv_invalid_value) 1225 << A->getAsString(Args) << A->getValue(); 1226 } 1227 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1228 1229 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1230 Opts.Plugins = Args.getAllArgValues(OPT_load); 1231 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1232 Opts.ShowHelp = Args.hasArg(OPT_help); 1233 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1234 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1235 Opts.ShowVersion = Args.hasArg(OPT_version); 1236 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1237 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1238 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1239 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1240 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1241 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1242 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1243 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1244 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1245 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1246 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1247 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1248 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 1249 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1250 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1251 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1252 1253 Opts.CodeCompleteOpts.IncludeMacros 1254 = Args.hasArg(OPT_code_completion_macros); 1255 Opts.CodeCompleteOpts.IncludeCodePatterns 1256 = Args.hasArg(OPT_code_completion_patterns); 1257 Opts.CodeCompleteOpts.IncludeGlobals 1258 = !Args.hasArg(OPT_no_code_completion_globals); 1259 Opts.CodeCompleteOpts.IncludeBriefComments 1260 = Args.hasArg(OPT_code_completion_brief_comments); 1261 1262 Opts.OverrideRecordLayoutsFile 1263 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1264 Opts.AuxTriple = 1265 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1266 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1267 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1268 1269 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1270 OPT_arcmt_modify, 1271 OPT_arcmt_migrate)) { 1272 switch (A->getOption().getID()) { 1273 default: 1274 llvm_unreachable("missed a case"); 1275 case OPT_arcmt_check: 1276 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1277 break; 1278 case OPT_arcmt_modify: 1279 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1280 break; 1281 case OPT_arcmt_migrate: 1282 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1283 break; 1284 } 1285 } 1286 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1287 Opts.ARCMTMigrateReportOut 1288 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1289 Opts.ARCMTMigrateEmitARCErrors 1290 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1291 1292 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1293 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1294 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1295 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1296 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1297 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1298 if (Args.hasArg(OPT_objcmt_migrate_property)) 1299 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1300 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1301 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1302 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1303 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1304 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1305 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1306 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1307 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1308 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1309 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1310 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1311 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1312 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1313 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1314 if (Args.hasArg(OPT_objcmt_atomic_property)) 1315 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1316 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1317 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1318 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1319 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1320 if (Args.hasArg(OPT_objcmt_migrate_all)) 1321 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1322 1323 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1324 1325 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1326 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1327 Diags.Report(diag::err_drv_argument_not_allowed_with) 1328 << "ARC migration" << "ObjC migration"; 1329 } 1330 1331 InputKind DashX = IK_None; 1332 if (const Arg *A = Args.getLastArg(OPT_x)) { 1333 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 1334 .Case("c", IK_C) 1335 .Case("cl", IK_OpenCL) 1336 .Case("cuda", IK_CUDA) 1337 .Case("c++", IK_CXX) 1338 .Case("c++-module", IK_CXX) 1339 .Case("objective-c", IK_ObjC) 1340 .Case("objective-c++", IK_ObjCXX) 1341 .Case("cpp-output", IK_PreprocessedC) 1342 .Case("assembler-with-cpp", IK_Asm) 1343 .Case("c++-cpp-output", IK_PreprocessedCXX) 1344 .Case("c++-module-cpp-output", IK_PreprocessedCXX) 1345 .Case("cuda-cpp-output", IK_PreprocessedCuda) 1346 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1347 .Case("objc-cpp-output", IK_PreprocessedObjC) 1348 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1349 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1350 .Case("c-header", IK_C) 1351 .Case("cl-header", IK_OpenCL) 1352 .Case("objective-c-header", IK_ObjC) 1353 .Case("c++-header", IK_CXX) 1354 .Case("objective-c++-header", IK_ObjCXX) 1355 .Cases("ast", "pcm", IK_AST) 1356 .Case("ir", IK_LLVM_IR) 1357 .Case("renderscript", IK_RenderScript) 1358 .Default(IK_None); 1359 if (DashX == IK_None) 1360 Diags.Report(diag::err_drv_invalid_value) 1361 << A->getAsString(Args) << A->getValue(); 1362 IsHeaderFile = llvm::StringSwitch<bool>(A->getValue()) 1363 .Case("c-header", true) 1364 .Case("cl-header", true) 1365 .Case("objective-c-header", true) 1366 .Case("c++-header", true) 1367 .Case("objective-c++-header", true) 1368 .Default(false); 1369 } 1370 1371 // '-' is the default input if none is given. 1372 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1373 Opts.Inputs.clear(); 1374 if (Inputs.empty()) 1375 Inputs.push_back("-"); 1376 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1377 InputKind IK = DashX; 1378 if (IK == IK_None) { 1379 IK = FrontendOptions::getInputKindForExtension( 1380 StringRef(Inputs[i]).rsplit('.').second); 1381 // FIXME: Remove this hack. 1382 if (i == 0) 1383 DashX = IK; 1384 } 1385 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1386 } 1387 1388 return DashX; 1389 } 1390 1391 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1392 void *MainAddr) { 1393 std::string ClangExecutable = 1394 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1395 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1396 1397 // Compute the path to the resource directory. 1398 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1399 SmallString<128> P(Dir); 1400 if (ClangResourceDir != "") 1401 llvm::sys::path::append(P, ClangResourceDir); 1402 else 1403 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1404 "clang", CLANG_VERSION_STRING); 1405 1406 return P.str(); 1407 } 1408 1409 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1410 using namespace options; 1411 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1412 Opts.Verbose = Args.hasArg(OPT_v); 1413 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1414 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1415 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1416 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1417 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1418 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1419 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 1420 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1421 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1422 Opts.AddPrebuiltModulePath(A->getValue()); 1423 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1424 Opts.ModulesValidateDiagnosticOptions = 1425 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1426 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1427 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1428 Opts.ModuleCachePruneInterval = 1429 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1430 Opts.ModuleCachePruneAfter = 1431 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1432 Opts.ModulesValidateOncePerBuildSession = 1433 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1434 Opts.BuildSessionTimestamp = 1435 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1436 Opts.ModulesValidateSystemHeaders = 1437 Args.hasArg(OPT_fmodules_validate_system_headers); 1438 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1439 Opts.ModuleFormat = A->getValue(); 1440 1441 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1442 StringRef MacroDef = A->getValue(); 1443 Opts.ModulesIgnoreMacros.insert( 1444 llvm::CachedHashString(MacroDef.split('=').first)); 1445 } 1446 1447 // Add -I..., -F..., and -index-header-map options in order. 1448 bool IsIndexHeaderMap = false; 1449 bool IsSysrootSpecified = 1450 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1451 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1452 if (A->getOption().matches(OPT_index_header_map)) { 1453 // -index-header-map applies to the next -I or -F. 1454 IsIndexHeaderMap = true; 1455 continue; 1456 } 1457 1458 frontend::IncludeDirGroup Group = 1459 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1460 1461 bool IsFramework = A->getOption().matches(OPT_F); 1462 std::string Path = A->getValue(); 1463 1464 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1465 SmallString<32> Buffer; 1466 llvm::sys::path::append(Buffer, Opts.Sysroot, 1467 llvm::StringRef(A->getValue()).substr(1)); 1468 Path = Buffer.str(); 1469 } 1470 1471 Opts.AddPath(Path, Group, IsFramework, 1472 /*IgnoreSysroot*/ true); 1473 IsIndexHeaderMap = false; 1474 } 1475 1476 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1477 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1478 for (const Arg *A : 1479 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1480 if (A->getOption().matches(OPT_iprefix)) 1481 Prefix = A->getValue(); 1482 else if (A->getOption().matches(OPT_iwithprefix)) 1483 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1484 else 1485 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1486 } 1487 1488 for (const Arg *A : Args.filtered(OPT_idirafter)) 1489 Opts.AddPath(A->getValue(), frontend::After, false, true); 1490 for (const Arg *A : Args.filtered(OPT_iquote)) 1491 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1492 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1493 Opts.AddPath(A->getValue(), frontend::System, false, 1494 !A->getOption().matches(OPT_iwithsysroot)); 1495 for (const Arg *A : Args.filtered(OPT_iframework)) 1496 Opts.AddPath(A->getValue(), frontend::System, true, true); 1497 1498 // Add the paths for the various language specific isystem flags. 1499 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1500 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1501 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1502 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1503 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1504 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1505 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1506 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1507 1508 // Add the internal paths from a driver that detects standard include paths. 1509 for (const Arg *A : 1510 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1511 frontend::IncludeDirGroup Group = frontend::System; 1512 if (A->getOption().matches(OPT_internal_externc_isystem)) 1513 Group = frontend::ExternCSystem; 1514 Opts.AddPath(A->getValue(), Group, false, true); 1515 } 1516 1517 // Add the path prefixes which are implicitly treated as being system headers. 1518 for (const Arg *A : 1519 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1520 Opts.AddSystemHeaderPrefix( 1521 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1522 1523 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1524 Opts.AddVFSOverlayFile(A->getValue()); 1525 } 1526 1527 static bool isOpenCL(LangStandard::Kind LangStd) { 1528 return LangStd == LangStandard::lang_opencl || 1529 LangStd == LangStandard::lang_opencl11 || 1530 LangStd == LangStandard::lang_opencl12 || 1531 LangStd == LangStandard::lang_opencl20; 1532 } 1533 1534 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1535 const llvm::Triple &T, 1536 PreprocessorOptions &PPOpts, 1537 LangStandard::Kind LangStd) { 1538 // Set some properties which depend solely on the input kind; it would be nice 1539 // to move these to the language standard, and have the driver resolve the 1540 // input kind + language standard. 1541 if (IK == IK_Asm) { 1542 Opts.AsmPreprocessor = 1; 1543 } else if (IK == IK_ObjC || 1544 IK == IK_ObjCXX || 1545 IK == IK_PreprocessedObjC || 1546 IK == IK_PreprocessedObjCXX) { 1547 Opts.ObjC1 = Opts.ObjC2 = 1; 1548 } 1549 1550 if (LangStd == LangStandard::lang_unspecified) { 1551 // Based on the base language, pick one. 1552 switch (IK) { 1553 case IK_None: 1554 case IK_AST: 1555 case IK_LLVM_IR: 1556 llvm_unreachable("Invalid input kind!"); 1557 case IK_OpenCL: 1558 LangStd = LangStandard::lang_opencl; 1559 break; 1560 case IK_CUDA: 1561 case IK_PreprocessedCuda: 1562 LangStd = LangStandard::lang_cuda; 1563 break; 1564 case IK_Asm: 1565 case IK_C: 1566 case IK_PreprocessedC: 1567 // The PS4 uses C99 as the default C standard. 1568 if (T.isPS4()) 1569 LangStd = LangStandard::lang_gnu99; 1570 else 1571 LangStd = LangStandard::lang_gnu11; 1572 break; 1573 case IK_ObjC: 1574 case IK_PreprocessedObjC: 1575 LangStd = LangStandard::lang_gnu11; 1576 break; 1577 case IK_CXX: 1578 case IK_PreprocessedCXX: 1579 case IK_ObjCXX: 1580 case IK_PreprocessedObjCXX: 1581 LangStd = LangStandard::lang_gnucxx98; 1582 break; 1583 case IK_RenderScript: 1584 LangStd = LangStandard::lang_c99; 1585 break; 1586 } 1587 } 1588 1589 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1590 Opts.LineComment = Std.hasLineComments(); 1591 Opts.C99 = Std.isC99(); 1592 Opts.C11 = Std.isC11(); 1593 Opts.CPlusPlus = Std.isCPlusPlus(); 1594 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1595 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1596 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1597 Opts.Digraphs = Std.hasDigraphs(); 1598 Opts.GNUMode = Std.isGNUMode(); 1599 Opts.GNUInline = Std.isC89(); 1600 Opts.HexFloats = Std.hasHexFloats(); 1601 Opts.ImplicitInt = Std.hasImplicitInt(); 1602 1603 // Set OpenCL Version. 1604 Opts.OpenCL = isOpenCL(LangStd) || IK == IK_OpenCL; 1605 if (LangStd == LangStandard::lang_opencl) 1606 Opts.OpenCLVersion = 100; 1607 else if (LangStd == LangStandard::lang_opencl11) 1608 Opts.OpenCLVersion = 110; 1609 else if (LangStd == LangStandard::lang_opencl12) 1610 Opts.OpenCLVersion = 120; 1611 else if (LangStd == LangStandard::lang_opencl20) 1612 Opts.OpenCLVersion = 200; 1613 1614 // OpenCL has some additional defaults. 1615 if (Opts.OpenCL) { 1616 Opts.AltiVec = 0; 1617 Opts.ZVector = 0; 1618 Opts.CXXOperatorNames = 1; 1619 Opts.LaxVectorConversions = 0; 1620 Opts.DefaultFPContract = 1; 1621 Opts.NativeHalfType = 1; 1622 Opts.NativeHalfArgsAndReturns = 1; 1623 // Include default header file for OpenCL. 1624 if (Opts.IncludeDefaultHeader) { 1625 PPOpts.Includes.push_back("opencl-c.h"); 1626 } 1627 } 1628 1629 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || 1630 LangStd == LangStandard::lang_cuda; 1631 1632 Opts.RenderScript = IK == IK_RenderScript; 1633 if (Opts.RenderScript) { 1634 Opts.NativeHalfType = 1; 1635 Opts.NativeHalfArgsAndReturns = 1; 1636 } 1637 1638 // OpenCL and C++ both have bool, true, false keywords. 1639 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1640 1641 // OpenCL has half keyword 1642 Opts.Half = Opts.OpenCL; 1643 1644 // C++ has wchar_t keyword. 1645 Opts.WChar = Opts.CPlusPlus; 1646 1647 Opts.GNUKeywords = Opts.GNUMode; 1648 Opts.CXXOperatorNames = Opts.CPlusPlus; 1649 1650 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1651 1652 Opts.DollarIdents = !Opts.AsmPreprocessor; 1653 } 1654 1655 /// Attempt to parse a visibility value out of the given argument. 1656 static Visibility parseVisibility(Arg *arg, ArgList &args, 1657 DiagnosticsEngine &diags) { 1658 StringRef value = arg->getValue(); 1659 if (value == "default") { 1660 return DefaultVisibility; 1661 } else if (value == "hidden" || value == "internal") { 1662 return HiddenVisibility; 1663 } else if (value == "protected") { 1664 // FIXME: diagnose if target does not support protected visibility 1665 return ProtectedVisibility; 1666 } 1667 1668 diags.Report(diag::err_drv_invalid_value) 1669 << arg->getAsString(args) << value; 1670 return DefaultVisibility; 1671 } 1672 1673 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1674 const TargetOptions &TargetOpts, 1675 PreprocessorOptions &PPOpts, 1676 DiagnosticsEngine &Diags) { 1677 // FIXME: Cleanup per-file based stuff. 1678 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1679 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1680 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1681 #define LANGSTANDARD(id, name, desc, features) \ 1682 .Case(name, LangStandard::lang_##id) 1683 #define LANGSTANDARD_ALIAS(id, alias) \ 1684 .Case(alias, LangStandard::lang_##id) 1685 #include "clang/Frontend/LangStandards.def" 1686 .Default(LangStandard::lang_unspecified); 1687 if (LangStd == LangStandard::lang_unspecified) 1688 Diags.Report(diag::err_drv_invalid_value) 1689 << A->getAsString(Args) << A->getValue(); 1690 else { 1691 // Valid standard, check to make sure language and standard are 1692 // compatible. 1693 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1694 switch (IK) { 1695 case IK_C: 1696 case IK_ObjC: 1697 case IK_PreprocessedC: 1698 case IK_PreprocessedObjC: 1699 if (!(Std.isC89() || Std.isC99())) 1700 Diags.Report(diag::err_drv_argument_not_allowed_with) 1701 << A->getAsString(Args) << "C/ObjC"; 1702 break; 1703 case IK_CXX: 1704 case IK_ObjCXX: 1705 case IK_PreprocessedCXX: 1706 case IK_PreprocessedObjCXX: 1707 if (!Std.isCPlusPlus()) 1708 Diags.Report(diag::err_drv_argument_not_allowed_with) 1709 << A->getAsString(Args) << "C++/ObjC++"; 1710 break; 1711 case IK_OpenCL: 1712 if (!isOpenCL(LangStd)) 1713 Diags.Report(diag::err_drv_argument_not_allowed_with) 1714 << A->getAsString(Args) << "OpenCL"; 1715 break; 1716 case IK_CUDA: 1717 case IK_PreprocessedCuda: 1718 if (!Std.isCPlusPlus()) 1719 Diags.Report(diag::err_drv_argument_not_allowed_with) 1720 << A->getAsString(Args) << "CUDA"; 1721 break; 1722 default: 1723 break; 1724 } 1725 } 1726 } 1727 1728 // -cl-std only applies for OpenCL language standards. 1729 // Override the -std option in this case. 1730 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1731 LangStandard::Kind OpenCLLangStd 1732 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1733 .Cases("cl", "CL", LangStandard::lang_opencl) 1734 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1735 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1736 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1737 .Default(LangStandard::lang_unspecified); 1738 1739 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1740 Diags.Report(diag::err_drv_invalid_value) 1741 << A->getAsString(Args) << A->getValue(); 1742 } 1743 else 1744 LangStd = OpenCLLangStd; 1745 } 1746 1747 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1748 1749 llvm::Triple T(TargetOpts.Triple); 1750 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1751 1752 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1753 // This option should be deprecated for CL > 1.0 because 1754 // this option was added for compatibility with OpenCL 1.0. 1755 if (Args.getLastArg(OPT_cl_strict_aliasing) 1756 && Opts.OpenCLVersion > 100) { 1757 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1758 std::string(".") + 1759 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1760 Diags.Report(diag::warn_option_invalid_ocl_version) 1761 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1762 } 1763 1764 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1765 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1766 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1767 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1768 // name, as it doesn't seem a useful distinction. 1769 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1770 Opts.GNUKeywords); 1771 1772 if (Args.hasArg(OPT_fno_operator_names)) 1773 Opts.CXXOperatorNames = 0; 1774 1775 if (Args.hasArg(OPT_fcuda_is_device)) 1776 Opts.CUDAIsDevice = 1; 1777 1778 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1779 Opts.CUDAAllowVariadicFunctions = 1; 1780 1781 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1782 Opts.CUDAHostDeviceConstexpr = 0; 1783 1784 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1785 Opts.CUDADeviceFlushDenormalsToZero = 1; 1786 1787 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1788 Opts.CUDADeviceApproxTranscendentals = 1; 1789 1790 if (Opts.ObjC1) { 1791 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1792 StringRef value = arg->getValue(); 1793 if (Opts.ObjCRuntime.tryParse(value)) 1794 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1795 } 1796 1797 if (Args.hasArg(OPT_fobjc_gc_only)) 1798 Opts.setGC(LangOptions::GCOnly); 1799 else if (Args.hasArg(OPT_fobjc_gc)) 1800 Opts.setGC(LangOptions::HybridGC); 1801 else if (Args.hasArg(OPT_fobjc_arc)) { 1802 Opts.ObjCAutoRefCount = 1; 1803 if (!Opts.ObjCRuntime.allowsARC()) 1804 Diags.Report(diag::err_arc_unsupported_on_runtime); 1805 } 1806 1807 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 1808 // whether the feature is actually enabled. This is predominantly 1809 // determined by -fobjc-runtime, but we allow it to be overridden 1810 // from the command line for testing purposes. 1811 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1812 Opts.ObjCWeakRuntime = 1; 1813 else 1814 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 1815 1816 // ObjCWeak determines whether __weak is actually enabled. 1817 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 1818 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 1819 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 1820 assert(!Opts.ObjCWeak); 1821 } else if (Opts.getGC() != LangOptions::NonGC) { 1822 Diags.Report(diag::err_objc_weak_with_gc); 1823 } else if (!Opts.ObjCWeakRuntime) { 1824 Diags.Report(diag::err_objc_weak_unsupported); 1825 } else { 1826 Opts.ObjCWeak = 1; 1827 } 1828 } else if (Opts.ObjCAutoRefCount) { 1829 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 1830 } 1831 1832 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1833 Opts.ObjCInferRelatedResultType = 0; 1834 1835 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1836 Opts.ObjCSubscriptingLegacyRuntime = 1837 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1838 } 1839 1840 if (Args.hasArg(OPT_fgnu89_inline)) { 1841 if (Opts.CPlusPlus) 1842 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline" 1843 << "C++/ObjC++"; 1844 else 1845 Opts.GNUInline = 1; 1846 } 1847 1848 if (Args.hasArg(OPT_fapple_kext)) { 1849 if (!Opts.CPlusPlus) 1850 Diags.Report(diag::warn_c_kext); 1851 else 1852 Opts.AppleKext = 1; 1853 } 1854 1855 if (Args.hasArg(OPT_print_ivar_layout)) 1856 Opts.ObjCGCBitmapPrint = 1; 1857 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1858 Opts.NoConstantCFStrings = 1; 1859 1860 if (Args.hasArg(OPT_faltivec)) 1861 Opts.AltiVec = 1; 1862 1863 if (Args.hasArg(OPT_fzvector)) 1864 Opts.ZVector = 1; 1865 1866 if (Args.hasArg(OPT_pthread)) 1867 Opts.POSIXThreads = 1; 1868 1869 // The value-visibility mode defaults to "default". 1870 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1871 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1872 } else { 1873 Opts.setValueVisibilityMode(DefaultVisibility); 1874 } 1875 1876 // The type-visibility mode defaults to the value-visibility mode. 1877 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1878 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1879 } else { 1880 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1881 } 1882 1883 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1884 Opts.InlineVisibilityHidden = 1; 1885 1886 if (Args.hasArg(OPT_ftrapv)) { 1887 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1888 // Set the handler, if one is specified. 1889 Opts.OverflowHandler = 1890 Args.getLastArgValue(OPT_ftrapv_handler); 1891 } 1892 else if (Args.hasArg(OPT_fwrapv)) 1893 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1894 1895 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1896 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1897 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1898 Opts.MSCompatibilityVersion = 0; 1899 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1900 VersionTuple VT; 1901 if (VT.tryParse(A->getValue())) 1902 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1903 << A->getValue(); 1904 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1905 VT.getMinor().getValueOr(0) * 100000 + 1906 VT.getSubminor().getValueOr(0); 1907 } 1908 1909 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1910 // is specified, or -std is set to a conforming mode. 1911 // Trigraphs are disabled by default in c++1z onwards. 1912 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1913 Opts.Trigraphs = 1914 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1915 1916 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1917 OPT_fno_dollars_in_identifiers, 1918 Opts.DollarIdents); 1919 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1920 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1921 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1922 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1923 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1924 Opts.ConstStrings); 1925 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1926 Opts.LaxVectorConversions = 0; 1927 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1928 Opts.ThreadsafeStatics = 0; 1929 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1930 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1931 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1932 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1933 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 1934 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1935 1936 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 1937 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1938 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 1939 && Opts.OpenCLVersion >= 200); 1940 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1941 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 1942 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 1943 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 1944 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1945 Opts.ModulesDeclUse = 1946 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1947 Opts.ModulesLocalVisibility = 1948 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 1949 Opts.ModulesSearchAll = Opts.Modules && 1950 !Args.hasArg(OPT_fno_modules_search_all) && 1951 Args.hasArg(OPT_fmodules_search_all); 1952 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1953 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 1954 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1955 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1956 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1957 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1958 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1959 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1960 if (!Opts.NoBuiltin) 1961 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 1962 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1963 Opts.RelaxedTemplateTemplateArgs = 1964 Args.hasArg(OPT_frelaxed_template_template_args); 1965 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 1966 Opts.AlignedAllocation = 1967 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 1968 Opts.AlignedAllocation); 1969 Opts.NewAlignOverride = 1970 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 1971 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 1972 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 1973 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 1974 << A->getValue(); 1975 Opts.NewAlignOverride = 0; 1976 } 1977 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 1978 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1979 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1980 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1981 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1982 Opts.InstantiationDepth = 1983 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 1984 Opts.ArrowDepth = 1985 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1986 Opts.ConstexprCallDepth = 1987 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1988 Opts.ConstexprStepLimit = 1989 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1990 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1991 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1992 Opts.NumLargeByValueCopy = 1993 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1994 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1995 Opts.ObjCConstantStringClass = 1996 Args.getLastArgValue(OPT_fconstant_string_class); 1997 Opts.ObjCDefaultSynthProperties = 1998 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 1999 Opts.EncodeExtendedBlockSig = 2000 Args.hasArg(OPT_fencode_extended_block_signature); 2001 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2002 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2003 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2004 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2005 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2006 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2007 Opts.Static = Args.hasArg(OPT_static_define); 2008 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2009 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2010 || Args.hasArg(OPT_fdump_record_layouts); 2011 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2012 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2013 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2014 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2015 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2016 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2017 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2018 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2019 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2020 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2021 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2022 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2023 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2024 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2025 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2026 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2027 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2028 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2029 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2030 // is enabled. 2031 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2032 | Opts.NativeHalfArgsAndReturns; 2033 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2034 2035 // __declspec is enabled by default for the PS4 by the driver, and also 2036 // enabled for Microsoft Extensions or Borland Extensions, here. 2037 // 2038 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2039 // CUDA extension. However, it is required for supporting 2040 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2041 // been rewritten in terms of something more generic, remove the Opts.CUDA 2042 // term here. 2043 Opts.DeclSpecKeyword = 2044 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2045 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2046 2047 // For now, we only support local submodule visibility in C++ (because we 2048 // heavily depend on the ODR for merging redefinitions). 2049 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) 2050 Diags.Report(diag::err_drv_argument_not_allowed_with) 2051 << "-fmodules-local-submodule-visibility" << "C"; 2052 2053 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2054 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2055 .Case("target", LangOptions::ASMM_Target) 2056 .Case("no", LangOptions::ASMM_Off) 2057 .Case("yes", LangOptions::ASMM_On) 2058 .Default(255)) { 2059 default: 2060 Diags.Report(diag::err_drv_invalid_value) 2061 << "-faddress-space-map-mangling=" << A->getValue(); 2062 break; 2063 case LangOptions::ASMM_Target: 2064 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2065 break; 2066 case LangOptions::ASMM_On: 2067 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2068 break; 2069 case LangOptions::ASMM_Off: 2070 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2071 break; 2072 } 2073 } 2074 2075 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2076 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2077 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2078 A->getValue()) 2079 .Case("single", 2080 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2081 .Case("multiple", 2082 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2083 .Case("virtual", 2084 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2085 .Default(LangOptions::PPTMK_BestCase); 2086 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2087 Diags.Report(diag::err_drv_invalid_value) 2088 << "-fms-memptr-rep=" << A->getValue(); 2089 2090 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2091 } 2092 2093 // Check for MS default calling conventions being specified. 2094 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2095 LangOptions::DefaultCallingConvention DefaultCC = 2096 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2097 A->getValue()) 2098 .Case("cdecl", LangOptions::DCC_CDecl) 2099 .Case("fastcall", LangOptions::DCC_FastCall) 2100 .Case("stdcall", LangOptions::DCC_StdCall) 2101 .Case("vectorcall", LangOptions::DCC_VectorCall) 2102 .Default(LangOptions::DCC_None); 2103 if (DefaultCC == LangOptions::DCC_None) 2104 Diags.Report(diag::err_drv_invalid_value) 2105 << "-fdefault-calling-conv=" << A->getValue(); 2106 2107 llvm::Triple T(TargetOpts.Triple); 2108 llvm::Triple::ArchType Arch = T.getArch(); 2109 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2110 DefaultCC == LangOptions::DCC_StdCall) && 2111 Arch != llvm::Triple::x86; 2112 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2113 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2114 if (emitError) 2115 Diags.Report(diag::err_drv_argument_not_allowed_with) 2116 << A->getSpelling() << T.getTriple(); 2117 else 2118 Opts.setDefaultCallingConv(DefaultCC); 2119 } 2120 2121 // -mrtd option 2122 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2123 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2124 Diags.Report(diag::err_drv_argument_not_allowed_with) 2125 << A->getSpelling() << "-fdefault-calling-conv"; 2126 else { 2127 llvm::Triple T(TargetOpts.Triple); 2128 if (T.getArch() != llvm::Triple::x86) 2129 Diags.Report(diag::err_drv_argument_not_allowed_with) 2130 << A->getSpelling() << T.getTriple(); 2131 else 2132 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2133 } 2134 } 2135 2136 // Check if -fopenmp is specified. 2137 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2138 Opts.OpenMPUseTLS = 2139 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2140 Opts.OpenMPIsDevice = 2141 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2142 2143 if (Opts.OpenMP) { 2144 int Version = 2145 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2146 if (Version != 0) 2147 Opts.OpenMP = Version; 2148 // Provide diagnostic when a given target is not expected to be an OpenMP 2149 // device or host. 2150 if (!Opts.OpenMPIsDevice) { 2151 switch (T.getArch()) { 2152 default: 2153 break; 2154 // Add unsupported host targets here: 2155 case llvm::Triple::nvptx: 2156 case llvm::Triple::nvptx64: 2157 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2158 << TargetOpts.Triple; 2159 break; 2160 } 2161 } 2162 } 2163 2164 // Get the OpenMP target triples if any. 2165 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2166 2167 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2168 llvm::Triple TT(A->getValue(i)); 2169 2170 if (TT.getArch() == llvm::Triple::UnknownArch) 2171 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2172 else 2173 Opts.OMPTargetTriples.push_back(TT); 2174 } 2175 } 2176 2177 // Get OpenMP host file path if any and report if a non existent file is 2178 // found 2179 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2180 Opts.OMPHostIRFile = A->getValue(); 2181 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2182 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2183 << Opts.OMPHostIRFile; 2184 } 2185 2186 // Record whether the __DEPRECATED define was requested. 2187 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2188 OPT_fno_deprecated_macro, 2189 Opts.Deprecated); 2190 2191 // FIXME: Eliminate this dependency. 2192 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2193 OptSize = getOptimizationLevelSize(Args); 2194 Opts.Optimize = Opt != 0; 2195 Opts.OptimizeSize = OptSize != 0; 2196 2197 // This is the __NO_INLINE__ define, which just depends on things like the 2198 // optimization level and -fno-inline, not actually whether the backend has 2199 // inlining enabled. 2200 Opts.NoInlineDefine = !Opts.Optimize; 2201 if (Arg *InlineArg = Args.getLastArg( 2202 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2203 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2204 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2205 Opts.NoInlineDefine = true; 2206 2207 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2208 Args.hasArg(OPT_cl_fast_relaxed_math); 2209 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2210 Args.hasArg(OPT_cl_finite_math_only) || 2211 Args.hasArg(OPT_cl_fast_relaxed_math); 2212 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2213 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2214 Args.hasArg(OPT_cl_fast_relaxed_math); 2215 2216 Opts.RetainCommentsFromSystemHeaders = 2217 Args.hasArg(OPT_fretain_comments_from_system_headers); 2218 2219 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2220 switch (SSP) { 2221 default: 2222 Diags.Report(diag::err_drv_invalid_value) 2223 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2224 break; 2225 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2226 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2227 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2228 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2229 } 2230 2231 // Parse -fsanitize= arguments. 2232 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2233 Diags, Opts.Sanitize); 2234 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2235 Opts.SanitizeAddressFieldPadding = 2236 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2237 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2238 } 2239 2240 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2241 FileManager &FileMgr, 2242 DiagnosticsEngine &Diags) { 2243 using namespace options; 2244 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2245 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2246 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2247 Opts.TokenCache = A->getValue(); 2248 else 2249 Opts.TokenCache = Opts.ImplicitPTHInclude; 2250 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2251 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2252 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2253 2254 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2255 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2256 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2257 2258 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2259 StringRef Value(A->getValue()); 2260 size_t Comma = Value.find(','); 2261 unsigned Bytes = 0; 2262 unsigned EndOfLine = 0; 2263 2264 if (Comma == StringRef::npos || 2265 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2266 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2267 Diags.Report(diag::err_drv_preamble_format); 2268 else { 2269 Opts.PrecompiledPreambleBytes.first = Bytes; 2270 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2271 } 2272 } 2273 2274 // Add macros from the command line. 2275 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2276 if (A->getOption().matches(OPT_D)) 2277 Opts.addMacroDef(A->getValue()); 2278 else 2279 Opts.addMacroUndef(A->getValue()); 2280 } 2281 2282 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2283 2284 // Add the ordered list of -includes. 2285 for (const Arg *A : Args.filtered(OPT_include)) 2286 Opts.Includes.emplace_back(A->getValue()); 2287 2288 for (const Arg *A : Args.filtered(OPT_chain_include)) 2289 Opts.ChainedIncludes.emplace_back(A->getValue()); 2290 2291 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2292 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2293 2294 if (Split.second.empty()) { 2295 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2296 continue; 2297 } 2298 2299 Opts.addRemappedFile(Split.first, Split.second); 2300 } 2301 2302 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2303 StringRef Name = A->getValue(); 2304 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2305 .Case("libc++", ARCXX_libcxx) 2306 .Case("libstdc++", ARCXX_libstdcxx) 2307 .Case("none", ARCXX_nolib) 2308 .Default(~0U); 2309 if (Library == ~0U) 2310 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2311 else 2312 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2313 } 2314 } 2315 2316 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2317 ArgList &Args, 2318 frontend::ActionKind Action) { 2319 using namespace options; 2320 2321 switch (Action) { 2322 case frontend::ASTDeclList: 2323 case frontend::ASTDump: 2324 case frontend::ASTPrint: 2325 case frontend::ASTView: 2326 case frontend::EmitAssembly: 2327 case frontend::EmitBC: 2328 case frontend::EmitHTML: 2329 case frontend::EmitLLVM: 2330 case frontend::EmitLLVMOnly: 2331 case frontend::EmitCodeGenOnly: 2332 case frontend::EmitObj: 2333 case frontend::FixIt: 2334 case frontend::GenerateModule: 2335 case frontend::GenerateModuleInterface: 2336 case frontend::GeneratePCH: 2337 case frontend::GeneratePTH: 2338 case frontend::ParseSyntaxOnly: 2339 case frontend::ModuleFileInfo: 2340 case frontend::VerifyPCH: 2341 case frontend::PluginAction: 2342 case frontend::PrintDeclContext: 2343 case frontend::RewriteObjC: 2344 case frontend::RewriteTest: 2345 case frontend::RunAnalysis: 2346 case frontend::MigrateSource: 2347 Opts.ShowCPP = 0; 2348 break; 2349 2350 case frontend::DumpRawTokens: 2351 case frontend::DumpTokens: 2352 case frontend::InitOnly: 2353 case frontend::PrintPreamble: 2354 case frontend::PrintPreprocessedInput: 2355 case frontend::RewriteMacros: 2356 case frontend::RunPreprocessorOnly: 2357 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2358 break; 2359 } 2360 2361 Opts.ShowComments = Args.hasArg(OPT_C); 2362 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2363 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2364 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2365 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2366 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2367 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2368 } 2369 2370 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2371 DiagnosticsEngine &Diags) { 2372 using namespace options; 2373 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2374 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2375 StringRef Value = A->getValue(); 2376 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2377 .Case("default", llvm::EABI::Default) 2378 .Case("4", llvm::EABI::EABI4) 2379 .Case("5", llvm::EABI::EABI5) 2380 .Case("gnu", llvm::EABI::GNU) 2381 .Default(llvm::EABI::Unknown); 2382 if (EABIVersion == llvm::EABI::Unknown) 2383 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2384 << Value; 2385 else 2386 Opts.EABIVersion = Value; 2387 } 2388 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2389 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2390 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2391 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2392 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2393 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2394 // Use the default target triple if unspecified. 2395 if (Opts.Triple.empty()) 2396 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2397 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2398 } 2399 2400 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2401 const char *const *ArgBegin, 2402 const char *const *ArgEnd, 2403 DiagnosticsEngine &Diags) { 2404 bool Success = true; 2405 2406 // Parse the arguments. 2407 std::unique_ptr<OptTable> Opts(createDriverOptTable()); 2408 const unsigned IncludedFlagsBitmask = options::CC1Option; 2409 unsigned MissingArgIndex, MissingArgCount; 2410 InputArgList Args = 2411 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2412 MissingArgCount, IncludedFlagsBitmask); 2413 LangOptions &LangOpts = *Res.getLangOpts(); 2414 2415 // Check for missing argument error. 2416 if (MissingArgCount) { 2417 Diags.Report(diag::err_drv_missing_argument) 2418 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2419 Success = false; 2420 } 2421 2422 // Issue errors on unknown arguments. 2423 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2424 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2425 Success = false; 2426 } 2427 2428 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2429 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2430 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2431 Success &= 2432 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2433 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2434 ParseCommentArgs(LangOpts.CommentOpts, Args); 2435 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2436 // FIXME: We shouldn't have to pass the DashX option around here 2437 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2438 LangOpts.IsHeaderFile); 2439 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2440 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2441 Res.getTargetOpts()); 2442 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args); 2443 if (DashX == IK_AST || DashX == IK_LLVM_IR) { 2444 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2445 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2446 // what the input type is. 2447 if (Args.hasArg(OPT_fobjc_arc)) 2448 LangOpts.ObjCAutoRefCount = 1; 2449 // PIClevel and PIELevel are needed during code generation and this should be 2450 // set regardless of the input type. 2451 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2452 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2453 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2454 Diags, LangOpts.Sanitize); 2455 } else { 2456 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2457 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2458 Res.getPreprocessorOpts(), Diags); 2459 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2460 LangOpts.ObjCExceptions = 1; 2461 } 2462 2463 if (LangOpts.CUDA) { 2464 // During CUDA device-side compilation, the aux triple is the 2465 // triple used for host compilation. 2466 if (LangOpts.CUDAIsDevice) 2467 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2468 2469 // Set default FP_CONTRACT to FAST. 2470 if (!Args.hasArg(OPT_ffp_contract)) 2471 Res.getCodeGenOpts().setFPContractMode(CodeGenOptions::FPC_Fast); 2472 } 2473 2474 // FIXME: Override value name discarding when asan or msan is used because the 2475 // backend passes depend on the name of the alloca in order to print out 2476 // names. 2477 Res.getCodeGenOpts().DiscardValueNames &= 2478 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2479 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2480 2481 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2482 // PCH file and find the original header name. Remove the need to do that in 2483 // ParsePreprocessorArgs and remove the FileManager 2484 // parameters from the function and the "FileManager.h" #include. 2485 FileManager FileMgr(Res.getFileSystemOpts()); 2486 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags); 2487 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2488 Res.getFrontendOpts().ProgramAction); 2489 2490 // Turn on -Wspir-compat for SPIR target. 2491 llvm::Triple T(Res.getTargetOpts().Triple); 2492 auto Arch = T.getArch(); 2493 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2494 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2495 } 2496 return Success; 2497 } 2498 2499 std::string CompilerInvocation::getModuleHash() const { 2500 // Note: For QoI reasons, the things we use as a hash here should all be 2501 // dumped via the -module-info flag. 2502 using llvm::hash_code; 2503 using llvm::hash_value; 2504 using llvm::hash_combine; 2505 2506 // Start the signature with the compiler version. 2507 // FIXME: We'd rather use something more cryptographically sound than 2508 // CityHash, but this will do for now. 2509 hash_code code = hash_value(getClangFullRepositoryVersion()); 2510 2511 // Extend the signature with the language options 2512 #define LANGOPT(Name, Bits, Default, Description) \ 2513 code = hash_combine(code, LangOpts->Name); 2514 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2515 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2516 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2517 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2518 #include "clang/Basic/LangOptions.def" 2519 2520 for (StringRef Feature : LangOpts->ModuleFeatures) 2521 code = hash_combine(code, Feature); 2522 2523 // Extend the signature with the target options. 2524 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2525 TargetOpts->ABI); 2526 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2527 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2528 2529 // Extend the signature with preprocessor options. 2530 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2531 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2532 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2533 2534 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2535 I = getPreprocessorOpts().Macros.begin(), 2536 IEnd = getPreprocessorOpts().Macros.end(); 2537 I != IEnd; ++I) { 2538 // If we're supposed to ignore this macro for the purposes of modules, 2539 // don't put it into the hash. 2540 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2541 // Check whether we're ignoring this macro. 2542 StringRef MacroDef = I->first; 2543 if (hsOpts.ModulesIgnoreMacros.count( 2544 llvm::CachedHashString(MacroDef.split('=').first))) 2545 continue; 2546 } 2547 2548 code = hash_combine(code, I->first, I->second); 2549 } 2550 2551 // Extend the signature with the sysroot and other header search options. 2552 code = hash_combine(code, hsOpts.Sysroot, 2553 hsOpts.ModuleFormat, 2554 hsOpts.UseDebugInfo, 2555 hsOpts.UseBuiltinIncludes, 2556 hsOpts.UseStandardSystemIncludes, 2557 hsOpts.UseStandardCXXIncludes, 2558 hsOpts.UseLibcxx, 2559 hsOpts.ModulesValidateDiagnosticOptions); 2560 code = hash_combine(code, hsOpts.ResourceDir); 2561 2562 // Extend the signature with the user build path. 2563 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2564 2565 // Extend the signature with the module file extensions. 2566 const FrontendOptions &frontendOpts = getFrontendOpts(); 2567 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2568 code = ext->hashExtension(code); 2569 } 2570 2571 // Darwin-specific hack: if we have a sysroot, use the contents and 2572 // modification time of 2573 // $sysroot/System/Library/CoreServices/SystemVersion.plist 2574 // as part of the module hash. 2575 if (!hsOpts.Sysroot.empty()) { 2576 SmallString<128> systemVersionFile; 2577 systemVersionFile += hsOpts.Sysroot; 2578 llvm::sys::path::append(systemVersionFile, "System"); 2579 llvm::sys::path::append(systemVersionFile, "Library"); 2580 llvm::sys::path::append(systemVersionFile, "CoreServices"); 2581 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 2582 2583 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 2584 llvm::MemoryBuffer::getFile(systemVersionFile); 2585 if (buffer) { 2586 code = hash_combine(code, buffer.get()->getBuffer()); 2587 2588 struct stat statBuf; 2589 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 2590 code = hash_combine(code, statBuf.st_mtime); 2591 } 2592 } 2593 2594 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2595 } 2596 2597 namespace clang { 2598 2599 template<typename IntTy> 2600 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2601 IntTy Default, 2602 DiagnosticsEngine *Diags) { 2603 IntTy Res = Default; 2604 if (Arg *A = Args.getLastArg(Id)) { 2605 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2606 if (Diags) 2607 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2608 << A->getValue(); 2609 } 2610 } 2611 return Res; 2612 } 2613 2614 2615 // Declared in clang/Frontend/Utils.h. 2616 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2617 DiagnosticsEngine *Diags) { 2618 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2619 } 2620 2621 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2622 uint64_t Default, 2623 DiagnosticsEngine *Diags) { 2624 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2625 } 2626 2627 void BuryPointer(const void *Ptr) { 2628 // This function may be called only a small fixed amount of times per each 2629 // invocation, otherwise we do actually have a leak which we want to report. 2630 // If this function is called more than kGraveYardMaxSize times, the pointers 2631 // will not be properly buried and a leak detector will report a leak, which 2632 // is what we want in such case. 2633 static const size_t kGraveYardMaxSize = 16; 2634 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2635 static std::atomic<unsigned> GraveYardSize; 2636 unsigned Idx = GraveYardSize++; 2637 if (Idx >= kGraveYardMaxSize) 2638 return; 2639 GraveYard[Idx] = Ptr; 2640 } 2641 2642 IntrusiveRefCntPtr<vfs::FileSystem> 2643 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2644 DiagnosticsEngine &Diags) { 2645 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2646 return vfs::getRealFileSystem(); 2647 2648 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2649 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2650 // earlier vfs files are on the bottom 2651 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2652 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2653 llvm::MemoryBuffer::getFile(File); 2654 if (!Buffer) { 2655 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2656 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2657 } 2658 2659 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2660 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2661 if (!FS.get()) { 2662 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2663 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2664 } 2665 Overlay->pushOverlay(FS); 2666 } 2667 return Overlay; 2668 } 2669 } // end namespace clang 2670