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