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