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