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