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