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 : LangOpts(new LangOptions(*X.getLangOpts())), 64 TargetOpts(new TargetOptions(X.getTargetOpts())), 65 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 66 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 67 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 68 69 CompilerInvocationBase::~CompilerInvocationBase() {} 70 71 //===----------------------------------------------------------------------===// 72 // Deserialization (from args) 73 //===----------------------------------------------------------------------===// 74 75 using namespace clang::driver; 76 using namespace clang::driver::options; 77 using namespace llvm::opt; 78 79 // 80 81 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 82 DiagnosticsEngine &Diags) { 83 unsigned DefaultOpt = 0; 84 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 85 DefaultOpt = 2; 86 87 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 88 if (A->getOption().matches(options::OPT_O0)) 89 return 0; 90 91 if (A->getOption().matches(options::OPT_Ofast)) 92 return 3; 93 94 assert (A->getOption().matches(options::OPT_O)); 95 96 StringRef S(A->getValue()); 97 if (S == "s" || S == "z" || S.empty()) 98 return 2; 99 100 if (S == "g") 101 return 1; 102 103 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 104 } 105 106 return DefaultOpt; 107 } 108 109 static unsigned getOptimizationLevelSize(ArgList &Args) { 110 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 111 if (A->getOption().matches(options::OPT_O)) { 112 switch (A->getValue()[0]) { 113 default: 114 return 0; 115 case 's': 116 return 1; 117 case 'z': 118 return 2; 119 } 120 } 121 } 122 return 0; 123 } 124 125 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 126 OptSpecifier GroupWithValue, 127 std::vector<std::string> &Diagnostics) { 128 for (Arg *A : Args.filtered(Group)) { 129 if (A->getOption().getKind() == Option::FlagClass) { 130 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 131 // its name (minus the "W" or "R" at the beginning) to the warning list. 132 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 133 } else if (A->getOption().matches(GroupWithValue)) { 134 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 135 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 136 } else { 137 // Otherwise, add its value (for OPT_W_Joined and similar). 138 for (const char *Arg : A->getValues()) 139 Diagnostics.emplace_back(Arg); 140 } 141 } 142 } 143 144 static void getAllNoBuiltinFuncValues(ArgList &Args, 145 std::vector<std::string> &Funcs) { 146 SmallVector<const char *, 8> Values; 147 for (const auto &Arg : Args) { 148 const Option &O = Arg->getOption(); 149 if (O.matches(options::OPT_fno_builtin_)) { 150 const char *FuncName = Arg->getValue(); 151 if (Builtin::Context::isBuiltinFunc(FuncName)) 152 Values.push_back(FuncName); 153 } 154 } 155 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 156 } 157 158 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 159 DiagnosticsEngine &Diags) { 160 using namespace options; 161 bool Success = true; 162 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 163 StringRef Name = A->getValue(); 164 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 165 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 166 .Case(CMDFLAG, NAME##Model) 167 #include "clang/StaticAnalyzer/Core/Analyses.def" 168 .Default(NumStores); 169 if (Value == NumStores) { 170 Diags.Report(diag::err_drv_invalid_value) 171 << A->getAsString(Args) << Name; 172 Success = false; 173 } else { 174 Opts.AnalysisStoreOpt = Value; 175 } 176 } 177 178 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 179 StringRef Name = A->getValue(); 180 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 181 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 182 .Case(CMDFLAG, NAME##Model) 183 #include "clang/StaticAnalyzer/Core/Analyses.def" 184 .Default(NumConstraints); 185 if (Value == NumConstraints) { 186 Diags.Report(diag::err_drv_invalid_value) 187 << A->getAsString(Args) << Name; 188 Success = false; 189 } else { 190 Opts.AnalysisConstraintsOpt = Value; 191 } 192 } 193 194 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 195 StringRef Name = A->getValue(); 196 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 197 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 198 .Case(CMDFLAG, PD_##NAME) 199 #include "clang/StaticAnalyzer/Core/Analyses.def" 200 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 201 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 202 Diags.Report(diag::err_drv_invalid_value) 203 << A->getAsString(Args) << Name; 204 Success = false; 205 } else { 206 Opts.AnalysisDiagOpt = Value; 207 } 208 } 209 210 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 211 StringRef Name = A->getValue(); 212 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 213 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 214 .Case(CMDFLAG, NAME) 215 #include "clang/StaticAnalyzer/Core/Analyses.def" 216 .Default(NumPurgeModes); 217 if (Value == NumPurgeModes) { 218 Diags.Report(diag::err_drv_invalid_value) 219 << A->getAsString(Args) << Name; 220 Success = false; 221 } else { 222 Opts.AnalysisPurgeOpt = Value; 223 } 224 } 225 226 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 227 StringRef Name = A->getValue(); 228 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 229 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 230 .Case(CMDFLAG, NAME) 231 #include "clang/StaticAnalyzer/Core/Analyses.def" 232 .Default(NumInliningModes); 233 if (Value == NumInliningModes) { 234 Diags.Report(diag::err_drv_invalid_value) 235 << A->getAsString(Args) << Name; 236 Success = false; 237 } else { 238 Opts.InliningMode = Value; 239 } 240 } 241 242 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 243 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 244 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 245 246 Opts.visualizeExplodedGraphWithGraphViz = 247 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 248 Opts.visualizeExplodedGraphWithUbiGraph = 249 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 250 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 251 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 252 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 253 Opts.AnalyzeNestedBlocks = 254 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 255 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 256 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 257 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 258 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 259 Opts.maxBlockVisitOnPath = 260 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 261 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 262 Opts.InlineMaxStackDepth = 263 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 264 Opts.InlineMaxStackDepth, Diags); 265 266 Opts.CheckersControlList.clear(); 267 for (const Arg *A : 268 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 269 A->claim(); 270 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 271 // We can have a list of comma separated checker names, e.g: 272 // '-analyzer-checker=cocoa,unix' 273 StringRef checkerList = A->getValue(); 274 SmallVector<StringRef, 4> checkers; 275 checkerList.split(checkers, ","); 276 for (StringRef checker : checkers) 277 Opts.CheckersControlList.emplace_back(checker, enable); 278 } 279 280 // Go through the analyzer configuration options. 281 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 282 A->claim(); 283 // We can have a list of comma separated config names, e.g: 284 // '-analyzer-config key1=val1,key2=val2' 285 StringRef configList = A->getValue(); 286 SmallVector<StringRef, 4> configVals; 287 configList.split(configVals, ","); 288 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 289 StringRef key, val; 290 std::tie(key, val) = configVals[i].split("="); 291 if (val.empty()) { 292 Diags.Report(SourceLocation(), 293 diag::err_analyzer_config_no_value) << configVals[i]; 294 Success = false; 295 break; 296 } 297 if (val.find('=') != StringRef::npos) { 298 Diags.Report(SourceLocation(), 299 diag::err_analyzer_config_multiple_values) 300 << configVals[i]; 301 Success = false; 302 break; 303 } 304 Opts.Config[key] = val; 305 } 306 } 307 308 return Success; 309 } 310 311 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 312 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 313 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 314 return true; 315 } 316 317 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 318 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 319 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 320 } 321 322 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 323 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 324 StringRef Value = A->getValue(); 325 if (Value == "small" || Value == "kernel" || Value == "medium" || 326 Value == "large") 327 return Value; 328 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 329 } 330 return "default"; 331 } 332 333 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 334 /// It returns a pointer to the newly generated Regex instance. 335 static std::shared_ptr<llvm::Regex> 336 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 337 Arg *RpassArg) { 338 StringRef Val = RpassArg->getValue(); 339 std::string RegexError; 340 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 341 if (!Pattern->isValid(RegexError)) { 342 Diags.Report(diag::err_drv_optimization_remark_pattern) 343 << RegexError << RpassArg->getAsString(Args); 344 Pattern.reset(); 345 } 346 return Pattern; 347 } 348 349 static bool parseDiagnosticLevelMask(StringRef FlagName, 350 const std::vector<std::string> &Levels, 351 DiagnosticsEngine *Diags, 352 DiagnosticLevelMask &M) { 353 bool Success = true; 354 for (const auto &Level : Levels) { 355 DiagnosticLevelMask const PM = 356 llvm::StringSwitch<DiagnosticLevelMask>(Level) 357 .Case("note", DiagnosticLevelMask::Note) 358 .Case("remark", DiagnosticLevelMask::Remark) 359 .Case("warning", DiagnosticLevelMask::Warning) 360 .Case("error", DiagnosticLevelMask::Error) 361 .Default(DiagnosticLevelMask::None); 362 if (PM == DiagnosticLevelMask::None) { 363 Success = false; 364 if (Diags) 365 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 366 } 367 M = M | PM; 368 } 369 return Success; 370 } 371 372 static void parseSanitizerKinds(StringRef FlagName, 373 const std::vector<std::string> &Sanitizers, 374 DiagnosticsEngine &Diags, SanitizerSet &S) { 375 for (const auto &Sanitizer : Sanitizers) { 376 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 377 if (K == 0) 378 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 379 else 380 S.set(K, true); 381 } 382 } 383 384 // Set the profile kind for fprofile-instrument. 385 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 386 DiagnosticsEngine &Diags) { 387 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 388 if (A == nullptr) 389 return; 390 StringRef S = A->getValue(); 391 unsigned I = llvm::StringSwitch<unsigned>(S) 392 .Case("none", CodeGenOptions::ProfileNone) 393 .Case("clang", CodeGenOptions::ProfileClangInstr) 394 .Case("llvm", CodeGenOptions::ProfileIRInstr) 395 .Default(~0U); 396 if (I == ~0U) { 397 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 398 << S; 399 return; 400 } 401 CodeGenOptions::ProfileInstrKind Instrumentor = 402 static_cast<CodeGenOptions::ProfileInstrKind>(I); 403 Opts.setProfileInstr(Instrumentor); 404 } 405 406 // Set the profile kind using fprofile-instrument-use-path. 407 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 408 const Twine &ProfileName) { 409 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 410 // In error, return silently and let Clang PGOUse report the error message. 411 if (auto E = ReaderOrErr.takeError()) { 412 llvm::consumeError(std::move(E)); 413 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 414 return; 415 } 416 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 417 std::move(ReaderOrErr.get()); 418 if (PGOReader->isIRLevelProfile()) 419 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 420 else 421 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 422 } 423 424 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 425 DiagnosticsEngine &Diags, 426 const TargetOptions &TargetOpts) { 427 using namespace options; 428 bool Success = true; 429 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 430 431 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 432 // TODO: This could be done in Driver 433 unsigned MaxOptLevel = 3; 434 if (OptimizationLevel > MaxOptLevel) { 435 // If the optimization level is not supported, fall back on the default 436 // optimization 437 Diags.Report(diag::warn_drv_optimization_value) 438 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 439 OptimizationLevel = MaxOptLevel; 440 } 441 Opts.OptimizationLevel = OptimizationLevel; 442 443 // At O0 we want to fully disable inlining outside of cases marked with 444 // 'alwaysinline' that are required for correctness. 445 Opts.setInlining((Opts.OptimizationLevel == 0) 446 ? CodeGenOptions::OnlyAlwaysInlining 447 : CodeGenOptions::NormalInlining); 448 // Explicit inlining flags can disable some or all inlining even at 449 // optimization levels above zero. 450 if (Arg *InlineArg = Args.getLastArg( 451 options::OPT_finline_functions, options::OPT_finline_hint_functions, 452 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 453 if (Opts.OptimizationLevel > 0) { 454 const Option &InlineOpt = InlineArg->getOption(); 455 if (InlineOpt.matches(options::OPT_finline_functions)) 456 Opts.setInlining(CodeGenOptions::NormalInlining); 457 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 458 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 459 else 460 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 461 } 462 } 463 464 Opts.ExperimentalNewPassManager = Args.hasFlag( 465 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 466 /* Default */ false); 467 468 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 469 StringRef Name = A->getValue(); 470 if (Name == "Accelerate") 471 Opts.setVecLib(CodeGenOptions::Accelerate); 472 else if (Name == "SVML") 473 Opts.setVecLib(CodeGenOptions::SVML); 474 else if (Name == "none") 475 Opts.setVecLib(CodeGenOptions::NoLibrary); 476 else 477 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 478 } 479 480 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 481 unsigned Val = 482 llvm::StringSwitch<unsigned>(A->getValue()) 483 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 484 .Case("limited", codegenoptions::LimitedDebugInfo) 485 .Case("standalone", codegenoptions::FullDebugInfo) 486 .Default(~0U); 487 if (Val == ~0U) 488 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 489 << A->getValue(); 490 else 491 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 492 } 493 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 494 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 495 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 496 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 497 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 498 .Default(~0U); 499 if (Val == ~0U) 500 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 501 << A->getValue(); 502 else 503 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 504 } 505 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 506 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 507 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 508 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 509 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 510 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 511 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 512 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 513 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 514 Opts.DebugExplicitImport = Triple.isPS4CPU(); 515 516 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 517 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 518 519 if (const Arg *A = 520 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 521 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 522 523 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 524 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 525 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 526 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 527 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 528 OPT_fuse_register_sized_bitfield_access); 529 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 530 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 531 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 532 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 533 Opts.NoCommon = Args.hasArg(OPT_fno_common); 534 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 535 Opts.OptimizeSize = getOptimizationLevelSize(Args); 536 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 537 Args.hasArg(OPT_ffreestanding)); 538 if (Opts.SimplifyLibCalls) 539 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 540 Opts.UnrollLoops = 541 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 542 (Opts.OptimizationLevel > 1)); 543 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 544 545 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 546 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 547 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 548 Opts.DebugInfoForProfiling = Args.hasFlag( 549 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 550 551 setPGOInstrumentor(Opts, Args, Diags); 552 Opts.InstrProfileOutput = 553 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 554 Opts.ProfileInstrumentUsePath = 555 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 556 if (!Opts.ProfileInstrumentUsePath.empty()) 557 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 558 559 Opts.CoverageMapping = 560 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 561 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 562 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 563 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 564 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 565 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 566 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 567 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 568 Opts.CodeModel = getCodeModel(Args, Diags); 569 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 570 Opts.DisableFPElim = 571 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 572 Opts.DisableFree = Args.hasArg(OPT_disable_free); 573 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 574 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 575 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 576 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 577 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 578 Args.hasArg(OPT_cl_fast_relaxed_math); 579 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 580 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 581 Args.hasArg(OPT_cl_finite_math_only) || 582 Args.hasArg(OPT_cl_fast_relaxed_math)); 583 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 584 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 585 Args.hasArg(OPT_cl_finite_math_only) || 586 Args.hasArg(OPT_cl_fast_relaxed_math)); 587 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 588 Args.hasArg(OPT_cl_no_signed_zeros) || 589 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 590 Args.hasArg(OPT_cl_fast_relaxed_math)); 591 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 592 Opts.CorrectlyRoundedDivSqrt = 593 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 594 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 595 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 596 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 597 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 598 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 599 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 600 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 601 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 602 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 603 Opts.IncrementalLinkerCompatible = 604 Args.hasArg(OPT_mincremental_linker_compatible); 605 Opts.PIECopyRelocations = 606 Args.hasArg(OPT_mpie_copy_relocations); 607 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 608 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 609 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 610 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 611 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 612 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 613 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 614 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 615 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 616 Args.hasArg(OPT_cl_fast_relaxed_math); 617 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 618 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 619 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 620 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 621 Diags.Report(diag::err_drv_invalid_value) 622 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 623 << Opts.ThreadModel; 624 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 625 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 626 627 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 628 OPT_fno_function_sections, false); 629 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 630 OPT_fno_data_sections, false); 631 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 632 OPT_fno_unique_section_names, true); 633 634 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 635 636 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 637 638 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 639 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ); 640 Opts.EmitSummaryIndex = A && A->containsValue("thin"); 641 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 642 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 643 if (IK != IK_LLVM_IR) 644 Diags.Report(diag::err_drv_argument_only_allowed_with) 645 << A->getAsString(Args) << "-x ir"; 646 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 647 } 648 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 649 650 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 651 652 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 653 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 654 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 655 656 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 657 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 658 659 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 660 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 661 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 662 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 663 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 664 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 665 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 666 Opts.CoverageNoFunctionNamesInData = 667 Args.hasArg(OPT_coverage_no_function_names_in_data); 668 Opts.CoverageExitBlockBeforeBody = 669 Args.hasArg(OPT_coverage_exit_block_before_body); 670 if (Args.hasArg(OPT_coverage_version_EQ)) { 671 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 672 if (CoverageVersion.size() != 4) { 673 Diags.Report(diag::err_drv_invalid_value) 674 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 675 << CoverageVersion; 676 } else { 677 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 678 } 679 } 680 } 681 // Handle -fembed-bitcode option. 682 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 683 StringRef Name = A->getValue(); 684 unsigned Model = llvm::StringSwitch<unsigned>(Name) 685 .Case("off", CodeGenOptions::Embed_Off) 686 .Case("all", CodeGenOptions::Embed_All) 687 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 688 .Case("marker", CodeGenOptions::Embed_Marker) 689 .Default(~0U); 690 if (Model == ~0U) { 691 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 692 Success = false; 693 } else 694 Opts.setEmbedBitcode( 695 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 696 } 697 // FIXME: For backend options that are not yet recorded as function 698 // attributes in the IR, keep track of them so we can embed them in a 699 // separate data section and use them when building the bitcode. 700 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 701 for (const auto &A : Args) { 702 // Do not encode output and input. 703 if (A->getOption().getID() == options::OPT_o || 704 A->getOption().getID() == options::OPT_INPUT || 705 A->getOption().getID() == options::OPT_x || 706 A->getOption().getID() == options::OPT_fembed_bitcode || 707 (A->getOption().getGroup().isValid() && 708 A->getOption().getGroup().getID() == options::OPT_W_Group)) 709 continue; 710 ArgStringList ASL; 711 A->render(Args, ASL); 712 for (const auto &arg : ASL) { 713 StringRef ArgStr(arg); 714 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 715 // using \00 to seperate each commandline options. 716 Opts.CmdArgs.push_back('\0'); 717 } 718 } 719 } 720 721 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 722 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 723 Opts.XRayInstructionThreshold = 724 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_, 200, Diags); 725 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 726 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 727 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 728 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 729 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 730 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 731 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 732 CodeGenOptions::BitcodeFileToLink F; 733 F.Filename = A->getValue(); 734 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) { 735 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 736 // When linking CUDA bitcode, propagate function attributes so that 737 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 738 F.PropagateAttrs = true; 739 F.Internalize = true; 740 } 741 Opts.LinkBitcodeFiles.push_back(F); 742 } 743 Opts.SanitizeCoverageType = 744 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 745 Opts.SanitizeCoverageIndirectCalls = 746 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 747 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 748 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 749 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 750 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 751 Opts.SanitizeCoverage8bitCounters = 752 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 753 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 754 Opts.SanitizeCoverageTracePCGuard = 755 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 756 Opts.SanitizeMemoryTrackOrigins = 757 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 758 Opts.SanitizeMemoryUseAfterDtor = 759 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 760 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 761 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 762 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 763 OPT_fno_sanitize_address_use_after_scope)) { 764 Opts.SanitizeAddressUseAfterScope = 765 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 766 } 767 Opts.SSPBufferSize = 768 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 769 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 770 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 771 StringRef Val = A->getValue(); 772 unsigned StackAlignment = Opts.StackAlignment; 773 Val.getAsInteger(10, StackAlignment); 774 Opts.StackAlignment = StackAlignment; 775 } 776 777 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 778 StringRef Val = A->getValue(); 779 unsigned StackProbeSize = Opts.StackProbeSize; 780 Val.getAsInteger(0, StackProbeSize); 781 Opts.StackProbeSize = StackProbeSize; 782 } 783 784 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 785 StringRef Name = A->getValue(); 786 unsigned Method = llvm::StringSwitch<unsigned>(Name) 787 .Case("legacy", CodeGenOptions::Legacy) 788 .Case("non-legacy", CodeGenOptions::NonLegacy) 789 .Case("mixed", CodeGenOptions::Mixed) 790 .Default(~0U); 791 if (Method == ~0U) { 792 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 793 Success = false; 794 } else { 795 Opts.setObjCDispatchMethod( 796 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 797 } 798 } 799 800 Opts.EmulatedTLS = 801 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 802 803 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 804 StringRef Name = A->getValue(); 805 unsigned Model = llvm::StringSwitch<unsigned>(Name) 806 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 807 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 808 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 809 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 810 .Default(~0U); 811 if (Model == ~0U) { 812 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 813 Success = false; 814 } else { 815 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 816 } 817 } 818 819 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 820 StringRef Val = A->getValue(); 821 if (Val == "ieee") 822 Opts.FPDenormalMode = "ieee"; 823 else if (Val == "preserve-sign") 824 Opts.FPDenormalMode = "preserve-sign"; 825 else if (Val == "positive-zero") 826 Opts.FPDenormalMode = "positive-zero"; 827 else 828 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 829 } 830 831 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 832 if (A->getOption().matches(OPT_fpcc_struct_return)) { 833 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 834 } else { 835 assert(A->getOption().matches(OPT_freg_struct_return)); 836 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 837 } 838 } 839 840 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 841 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 842 bool NeedLocTracking = false; 843 844 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 845 if (!Opts.OptRecordFile.empty()) 846 NeedLocTracking = true; 847 848 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 849 Opts.OptimizationRemarkPattern = 850 GenerateOptimizationRemarkRegex(Diags, Args, A); 851 NeedLocTracking = true; 852 } 853 854 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 855 Opts.OptimizationRemarkMissedPattern = 856 GenerateOptimizationRemarkRegex(Diags, Args, A); 857 NeedLocTracking = true; 858 } 859 860 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 861 Opts.OptimizationRemarkAnalysisPattern = 862 GenerateOptimizationRemarkRegex(Diags, Args, A); 863 NeedLocTracking = true; 864 } 865 866 Opts.DiagnosticsWithHotness = 867 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 868 if (Opts.DiagnosticsWithHotness && 869 Opts.getProfileUse() == CodeGenOptions::ProfileNone) 870 Diags.Report(diag::warn_drv_fdiagnostics_show_hotness_requires_pgo); 871 872 // If the user requested to use a sample profile for PGO, then the 873 // backend will need to track source location information so the profile 874 // can be incorporated into the IR. 875 if (!Opts.SampleProfileFile.empty()) 876 NeedLocTracking = true; 877 878 // If the user requested a flag that requires source locations available in 879 // the backend, make sure that the backend tracks source location information. 880 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 881 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 882 883 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 884 885 // Parse -fsanitize-recover= arguments. 886 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 887 parseSanitizerKinds("-fsanitize-recover=", 888 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 889 Opts.SanitizeRecover); 890 parseSanitizerKinds("-fsanitize-trap=", 891 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 892 Opts.SanitizeTrap); 893 894 Opts.CudaGpuBinaryFileNames = 895 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 896 897 Opts.Backchain = Args.hasArg(OPT_mbackchain); 898 899 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 900 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 901 902 return Success; 903 } 904 905 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 906 ArgList &Args) { 907 using namespace options; 908 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 909 Opts.Targets = Args.getAllArgValues(OPT_MT); 910 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 911 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 912 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 913 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 914 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 915 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 916 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 917 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 918 Opts.ModuleDependencyOutputDir = 919 Args.getLastArgValue(OPT_module_dependency_dir); 920 if (Args.hasArg(OPT_MV)) 921 Opts.OutputFormat = DependencyOutputFormat::NMake; 922 // Add sanitizer blacklists as extra dependencies. 923 // They won't be discovered by the regular preprocessor, so 924 // we let make / ninja to know about this implicit dependency. 925 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 926 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 927 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 928 ModuleFiles.end()); 929 } 930 931 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 932 // Color diagnostics default to auto ("on" if terminal supports) in the driver 933 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 934 // Support both clang's -f[no-]color-diagnostics and gcc's 935 // -f[no-]diagnostics-colors[=never|always|auto]. 936 enum { 937 Colors_On, 938 Colors_Off, 939 Colors_Auto 940 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 941 for (Arg *A : Args) { 942 const Option &O = A->getOption(); 943 if (O.matches(options::OPT_fcolor_diagnostics) || 944 O.matches(options::OPT_fdiagnostics_color)) { 945 ShowColors = Colors_On; 946 } else if (O.matches(options::OPT_fno_color_diagnostics) || 947 O.matches(options::OPT_fno_diagnostics_color)) { 948 ShowColors = Colors_Off; 949 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 950 StringRef Value(A->getValue()); 951 if (Value == "always") 952 ShowColors = Colors_On; 953 else if (Value == "never") 954 ShowColors = Colors_Off; 955 else if (Value == "auto") 956 ShowColors = Colors_Auto; 957 } 958 } 959 return ShowColors == Colors_On || 960 (ShowColors == Colors_Auto && 961 llvm::sys::Process::StandardErrHasColors()); 962 } 963 964 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 965 DiagnosticsEngine *Diags, 966 bool DefaultDiagColor, bool DefaultShowOpt) { 967 using namespace options; 968 bool Success = true; 969 970 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 971 if (Arg *A = 972 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 973 Opts.DiagnosticSerializationFile = A->getValue(); 974 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 975 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 976 Opts.Pedantic = Args.hasArg(OPT_pedantic); 977 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 978 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 979 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 980 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 981 OPT_fno_show_column, 982 /*Default=*/true); 983 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 984 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 985 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 986 Opts.ShowOptionNames = 987 Args.hasFlag(OPT_fdiagnostics_show_option, 988 OPT_fno_diagnostics_show_option, DefaultShowOpt); 989 990 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 991 992 // Default behavior is to not to show note include stacks. 993 Opts.ShowNoteIncludeStack = false; 994 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 995 OPT_fno_diagnostics_show_note_include_stack)) 996 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 997 Opts.ShowNoteIncludeStack = true; 998 999 StringRef ShowOverloads = 1000 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1001 if (ShowOverloads == "best") 1002 Opts.setShowOverloads(Ovl_Best); 1003 else if (ShowOverloads == "all") 1004 Opts.setShowOverloads(Ovl_All); 1005 else { 1006 Success = false; 1007 if (Diags) 1008 Diags->Report(diag::err_drv_invalid_value) 1009 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1010 << ShowOverloads; 1011 } 1012 1013 StringRef ShowCategory = 1014 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1015 if (ShowCategory == "none") 1016 Opts.ShowCategories = 0; 1017 else if (ShowCategory == "id") 1018 Opts.ShowCategories = 1; 1019 else if (ShowCategory == "name") 1020 Opts.ShowCategories = 2; 1021 else { 1022 Success = false; 1023 if (Diags) 1024 Diags->Report(diag::err_drv_invalid_value) 1025 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1026 << ShowCategory; 1027 } 1028 1029 StringRef Format = 1030 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1031 if (Format == "clang") 1032 Opts.setFormat(DiagnosticOptions::Clang); 1033 else if (Format == "msvc") 1034 Opts.setFormat(DiagnosticOptions::MSVC); 1035 else if (Format == "msvc-fallback") { 1036 Opts.setFormat(DiagnosticOptions::MSVC); 1037 Opts.CLFallbackMode = true; 1038 } else if (Format == "vi") 1039 Opts.setFormat(DiagnosticOptions::Vi); 1040 else { 1041 Success = false; 1042 if (Diags) 1043 Diags->Report(diag::err_drv_invalid_value) 1044 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1045 << Format; 1046 } 1047 1048 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1049 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1050 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1051 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1052 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1053 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1054 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1055 Diags, DiagMask); 1056 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1057 DiagMask = DiagnosticLevelMask::All; 1058 Opts.setVerifyIgnoreUnexpected(DiagMask); 1059 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1060 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1061 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1062 Opts.MacroBacktraceLimit = 1063 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1064 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1065 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1066 Args, OPT_ftemplate_backtrace_limit, 1067 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1068 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1069 Args, OPT_fconstexpr_backtrace_limit, 1070 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1071 Opts.SpellCheckingLimit = getLastArgIntValue( 1072 Args, OPT_fspell_checking_limit, 1073 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1074 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1075 DiagnosticOptions::DefaultTabStop, Diags); 1076 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1077 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1078 if (Diags) 1079 Diags->Report(diag::warn_ignoring_ftabstop_value) 1080 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1081 } 1082 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1083 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1084 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1085 1086 return Success; 1087 } 1088 1089 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1090 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1091 } 1092 1093 /// Parse the argument to the -ftest-module-file-extension 1094 /// command-line argument. 1095 /// 1096 /// \returns true on error, false on success. 1097 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1098 std::string &BlockName, 1099 unsigned &MajorVersion, 1100 unsigned &MinorVersion, 1101 bool &Hashed, 1102 std::string &UserInfo) { 1103 SmallVector<StringRef, 5> Args; 1104 Arg.split(Args, ':', 5); 1105 if (Args.size() < 5) 1106 return true; 1107 1108 BlockName = Args[0]; 1109 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1110 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1111 if (Args[3].getAsInteger(2, Hashed)) return true; 1112 if (Args.size() > 4) 1113 UserInfo = Args[4]; 1114 return false; 1115 } 1116 1117 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1118 DiagnosticsEngine &Diags, 1119 bool &IsHeaderFile) { 1120 using namespace options; 1121 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1122 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1123 switch (A->getOption().getID()) { 1124 default: 1125 llvm_unreachable("Invalid option in group!"); 1126 case OPT_ast_list: 1127 Opts.ProgramAction = frontend::ASTDeclList; break; 1128 case OPT_ast_dump: 1129 case OPT_ast_dump_all: 1130 case OPT_ast_dump_lookups: 1131 Opts.ProgramAction = frontend::ASTDump; break; 1132 case OPT_ast_print: 1133 Opts.ProgramAction = frontend::ASTPrint; break; 1134 case OPT_ast_view: 1135 Opts.ProgramAction = frontend::ASTView; break; 1136 case OPT_dump_raw_tokens: 1137 Opts.ProgramAction = frontend::DumpRawTokens; break; 1138 case OPT_dump_tokens: 1139 Opts.ProgramAction = frontend::DumpTokens; break; 1140 case OPT_S: 1141 Opts.ProgramAction = frontend::EmitAssembly; break; 1142 case OPT_emit_llvm_bc: 1143 Opts.ProgramAction = frontend::EmitBC; break; 1144 case OPT_emit_html: 1145 Opts.ProgramAction = frontend::EmitHTML; break; 1146 case OPT_emit_llvm: 1147 Opts.ProgramAction = frontend::EmitLLVM; break; 1148 case OPT_emit_llvm_only: 1149 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1150 case OPT_emit_codegen_only: 1151 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1152 case OPT_emit_obj: 1153 Opts.ProgramAction = frontend::EmitObj; break; 1154 case OPT_fixit_EQ: 1155 Opts.FixItSuffix = A->getValue(); 1156 // fall-through! 1157 case OPT_fixit: 1158 Opts.ProgramAction = frontend::FixIt; break; 1159 case OPT_emit_module: 1160 Opts.ProgramAction = frontend::GenerateModule; break; 1161 case OPT_emit_module_interface: 1162 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1163 case OPT_emit_pch: 1164 Opts.ProgramAction = frontend::GeneratePCH; break; 1165 case OPT_emit_pth: 1166 Opts.ProgramAction = frontend::GeneratePTH; break; 1167 case OPT_init_only: 1168 Opts.ProgramAction = frontend::InitOnly; break; 1169 case OPT_fsyntax_only: 1170 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1171 case OPT_module_file_info: 1172 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1173 case OPT_verify_pch: 1174 Opts.ProgramAction = frontend::VerifyPCH; break; 1175 case OPT_print_decl_contexts: 1176 Opts.ProgramAction = frontend::PrintDeclContext; break; 1177 case OPT_print_preamble: 1178 Opts.ProgramAction = frontend::PrintPreamble; break; 1179 case OPT_E: 1180 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1181 case OPT_rewrite_macros: 1182 Opts.ProgramAction = frontend::RewriteMacros; break; 1183 case OPT_rewrite_objc: 1184 Opts.ProgramAction = frontend::RewriteObjC; break; 1185 case OPT_rewrite_test: 1186 Opts.ProgramAction = frontend::RewriteTest; break; 1187 case OPT_analyze: 1188 Opts.ProgramAction = frontend::RunAnalysis; break; 1189 case OPT_migrate: 1190 Opts.ProgramAction = frontend::MigrateSource; break; 1191 case OPT_Eonly: 1192 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1193 } 1194 } 1195 1196 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1197 Opts.Plugins.emplace_back(A->getValue(0)); 1198 Opts.ProgramAction = frontend::PluginAction; 1199 Opts.ActionName = A->getValue(); 1200 } 1201 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1202 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1203 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1204 1205 for (const std::string &Arg : 1206 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1207 std::string BlockName; 1208 unsigned MajorVersion; 1209 unsigned MinorVersion; 1210 bool Hashed; 1211 std::string UserInfo; 1212 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1213 MinorVersion, Hashed, UserInfo)) { 1214 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1215 1216 continue; 1217 } 1218 1219 // Add the testing module file extension. 1220 Opts.ModuleFileExtensions.push_back( 1221 std::make_shared<TestModuleFileExtension>( 1222 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1223 } 1224 1225 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1226 Opts.CodeCompletionAt = 1227 ParsedSourceLocation::FromString(A->getValue()); 1228 if (Opts.CodeCompletionAt.FileName.empty()) 1229 Diags.Report(diag::err_drv_invalid_value) 1230 << A->getAsString(Args) << A->getValue(); 1231 } 1232 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1233 1234 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1235 Opts.Plugins = Args.getAllArgValues(OPT_load); 1236 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1237 Opts.ShowHelp = Args.hasArg(OPT_help); 1238 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1239 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1240 Opts.ShowVersion = Args.hasArg(OPT_version); 1241 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1242 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1243 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1244 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1245 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1246 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1247 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1248 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1249 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1250 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1251 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1252 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1253 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1254 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 1255 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1256 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1257 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1258 1259 Opts.CodeCompleteOpts.IncludeMacros 1260 = Args.hasArg(OPT_code_completion_macros); 1261 Opts.CodeCompleteOpts.IncludeCodePatterns 1262 = Args.hasArg(OPT_code_completion_patterns); 1263 Opts.CodeCompleteOpts.IncludeGlobals 1264 = !Args.hasArg(OPT_no_code_completion_globals); 1265 Opts.CodeCompleteOpts.IncludeBriefComments 1266 = Args.hasArg(OPT_code_completion_brief_comments); 1267 1268 Opts.OverrideRecordLayoutsFile 1269 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1270 Opts.AuxTriple = 1271 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1272 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1273 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1274 1275 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1276 OPT_arcmt_modify, 1277 OPT_arcmt_migrate)) { 1278 switch (A->getOption().getID()) { 1279 default: 1280 llvm_unreachable("missed a case"); 1281 case OPT_arcmt_check: 1282 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1283 break; 1284 case OPT_arcmt_modify: 1285 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1286 break; 1287 case OPT_arcmt_migrate: 1288 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1289 break; 1290 } 1291 } 1292 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1293 Opts.ARCMTMigrateReportOut 1294 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1295 Opts.ARCMTMigrateEmitARCErrors 1296 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1297 1298 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1299 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1300 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1301 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1302 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1303 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1304 if (Args.hasArg(OPT_objcmt_migrate_property)) 1305 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1306 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1307 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1308 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1309 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1310 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1311 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1312 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1313 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1314 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1315 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1316 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1317 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1318 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1319 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1320 if (Args.hasArg(OPT_objcmt_atomic_property)) 1321 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1322 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1323 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1324 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1325 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1326 if (Args.hasArg(OPT_objcmt_migrate_all)) 1327 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1328 1329 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1330 1331 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1332 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1333 Diags.Report(diag::err_drv_argument_not_allowed_with) 1334 << "ARC migration" << "ObjC migration"; 1335 } 1336 1337 InputKind DashX = IK_None; 1338 if (const Arg *A = Args.getLastArg(OPT_x)) { 1339 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 1340 .Case("c", IK_C) 1341 .Case("cl", IK_OpenCL) 1342 .Case("cuda", IK_CUDA) 1343 .Case("c++", IK_CXX) 1344 .Case("c++-module", IK_CXX) 1345 .Case("objective-c", IK_ObjC) 1346 .Case("objective-c++", IK_ObjCXX) 1347 .Case("cpp-output", IK_PreprocessedC) 1348 .Case("assembler-with-cpp", IK_Asm) 1349 .Case("c++-cpp-output", IK_PreprocessedCXX) 1350 .Case("c++-module-cpp-output", IK_PreprocessedCXX) 1351 .Case("cuda-cpp-output", IK_PreprocessedCuda) 1352 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1353 .Case("objc-cpp-output", IK_PreprocessedObjC) 1354 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1355 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1356 .Case("c-header", IK_C) 1357 .Case("cl-header", IK_OpenCL) 1358 .Case("objective-c-header", IK_ObjC) 1359 .Case("c++-header", IK_CXX) 1360 .Case("objective-c++-header", IK_ObjCXX) 1361 .Cases("ast", "pcm", IK_AST) 1362 .Case("ir", IK_LLVM_IR) 1363 .Case("renderscript", IK_RenderScript) 1364 .Default(IK_None); 1365 if (DashX == IK_None) 1366 Diags.Report(diag::err_drv_invalid_value) 1367 << A->getAsString(Args) << A->getValue(); 1368 IsHeaderFile = llvm::StringSwitch<bool>(A->getValue()) 1369 .Case("c-header", true) 1370 .Case("cl-header", true) 1371 .Case("objective-c-header", true) 1372 .Case("c++-header", true) 1373 .Case("objective-c++-header", true) 1374 .Default(false); 1375 } 1376 1377 // '-' is the default input if none is given. 1378 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1379 Opts.Inputs.clear(); 1380 if (Inputs.empty()) 1381 Inputs.push_back("-"); 1382 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1383 InputKind IK = DashX; 1384 if (IK == IK_None) { 1385 IK = FrontendOptions::getInputKindForExtension( 1386 StringRef(Inputs[i]).rsplit('.').second); 1387 // FIXME: Remove this hack. 1388 if (i == 0) 1389 DashX = IK; 1390 } 1391 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1392 } 1393 1394 return DashX; 1395 } 1396 1397 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1398 void *MainAddr) { 1399 std::string ClangExecutable = 1400 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1401 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1402 1403 // Compute the path to the resource directory. 1404 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1405 SmallString<128> P(Dir); 1406 if (ClangResourceDir != "") 1407 llvm::sys::path::append(P, ClangResourceDir); 1408 else 1409 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1410 "clang", CLANG_VERSION_STRING); 1411 1412 return P.str(); 1413 } 1414 1415 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1416 const std::string &WorkingDir) { 1417 using namespace options; 1418 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1419 Opts.Verbose = Args.hasArg(OPT_v); 1420 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1421 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1422 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1423 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1424 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1425 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1426 1427 // Canonicalize -fmodules-cache-path before storing it. 1428 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1429 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1430 if (WorkingDir.empty()) 1431 llvm::sys::fs::make_absolute(P); 1432 else 1433 llvm::sys::fs::make_absolute(WorkingDir, P); 1434 } 1435 llvm::sys::path::remove_dots(P); 1436 Opts.ModuleCachePath = P.str(); 1437 1438 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1439 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1440 Opts.AddPrebuiltModulePath(A->getValue()); 1441 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1442 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1443 Opts.ModulesValidateDiagnosticOptions = 1444 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1445 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1446 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1447 Opts.ModuleCachePruneInterval = 1448 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1449 Opts.ModuleCachePruneAfter = 1450 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1451 Opts.ModulesValidateOncePerBuildSession = 1452 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1453 Opts.BuildSessionTimestamp = 1454 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1455 Opts.ModulesValidateSystemHeaders = 1456 Args.hasArg(OPT_fmodules_validate_system_headers); 1457 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1458 Opts.ModuleFormat = A->getValue(); 1459 1460 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1461 StringRef MacroDef = A->getValue(); 1462 Opts.ModulesIgnoreMacros.insert( 1463 llvm::CachedHashString(MacroDef.split('=').first)); 1464 } 1465 1466 // Add -I..., -F..., and -index-header-map options in order. 1467 bool IsIndexHeaderMap = false; 1468 bool IsSysrootSpecified = 1469 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1470 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1471 if (A->getOption().matches(OPT_index_header_map)) { 1472 // -index-header-map applies to the next -I or -F. 1473 IsIndexHeaderMap = true; 1474 continue; 1475 } 1476 1477 frontend::IncludeDirGroup Group = 1478 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1479 1480 bool IsFramework = A->getOption().matches(OPT_F); 1481 std::string Path = A->getValue(); 1482 1483 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1484 SmallString<32> Buffer; 1485 llvm::sys::path::append(Buffer, Opts.Sysroot, 1486 llvm::StringRef(A->getValue()).substr(1)); 1487 Path = Buffer.str(); 1488 } 1489 1490 Opts.AddPath(Path, Group, IsFramework, 1491 /*IgnoreSysroot*/ true); 1492 IsIndexHeaderMap = false; 1493 } 1494 1495 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1496 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1497 for (const Arg *A : 1498 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1499 if (A->getOption().matches(OPT_iprefix)) 1500 Prefix = A->getValue(); 1501 else if (A->getOption().matches(OPT_iwithprefix)) 1502 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1503 else 1504 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1505 } 1506 1507 for (const Arg *A : Args.filtered(OPT_idirafter)) 1508 Opts.AddPath(A->getValue(), frontend::After, false, true); 1509 for (const Arg *A : Args.filtered(OPT_iquote)) 1510 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1511 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1512 Opts.AddPath(A->getValue(), frontend::System, false, 1513 !A->getOption().matches(OPT_iwithsysroot)); 1514 for (const Arg *A : Args.filtered(OPT_iframework)) 1515 Opts.AddPath(A->getValue(), frontend::System, true, true); 1516 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot)) 1517 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1518 /*IgnoreSysRoot=*/false); 1519 1520 // Add the paths for the various language specific isystem flags. 1521 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1522 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1523 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1524 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1525 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1526 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1527 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1528 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1529 1530 // Add the internal paths from a driver that detects standard include paths. 1531 for (const Arg *A : 1532 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1533 frontend::IncludeDirGroup Group = frontend::System; 1534 if (A->getOption().matches(OPT_internal_externc_isystem)) 1535 Group = frontend::ExternCSystem; 1536 Opts.AddPath(A->getValue(), Group, false, true); 1537 } 1538 1539 // Add the path prefixes which are implicitly treated as being system headers. 1540 for (const Arg *A : 1541 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1542 Opts.AddSystemHeaderPrefix( 1543 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1544 1545 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1546 Opts.AddVFSOverlayFile(A->getValue()); 1547 } 1548 1549 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1550 const llvm::Triple &T, 1551 PreprocessorOptions &PPOpts, 1552 LangStandard::Kind LangStd) { 1553 // Set some properties which depend solely on the input kind; it would be nice 1554 // to move these to the language standard, and have the driver resolve the 1555 // input kind + language standard. 1556 if (IK == IK_Asm) { 1557 Opts.AsmPreprocessor = 1; 1558 } else if (IK == IK_ObjC || 1559 IK == IK_ObjCXX || 1560 IK == IK_PreprocessedObjC || 1561 IK == IK_PreprocessedObjCXX) { 1562 Opts.ObjC1 = Opts.ObjC2 = 1; 1563 } 1564 1565 if (LangStd == LangStandard::lang_unspecified) { 1566 // Based on the base language, pick one. 1567 switch (IK) { 1568 case IK_None: 1569 case IK_AST: 1570 case IK_LLVM_IR: 1571 llvm_unreachable("Invalid input kind!"); 1572 case IK_OpenCL: 1573 LangStd = LangStandard::lang_opencl; 1574 break; 1575 case IK_CUDA: 1576 case IK_PreprocessedCuda: 1577 LangStd = LangStandard::lang_cuda; 1578 break; 1579 case IK_Asm: 1580 case IK_C: 1581 case IK_PreprocessedC: 1582 // The PS4 uses C99 as the default C standard. 1583 if (T.isPS4()) 1584 LangStd = LangStandard::lang_gnu99; 1585 else 1586 LangStd = LangStandard::lang_gnu11; 1587 break; 1588 case IK_ObjC: 1589 case IK_PreprocessedObjC: 1590 LangStd = LangStandard::lang_gnu11; 1591 break; 1592 case IK_CXX: 1593 case IK_PreprocessedCXX: 1594 case IK_ObjCXX: 1595 case IK_PreprocessedObjCXX: 1596 // The PS4 uses C++11 as the default C++ standard. 1597 if (T.isPS4()) 1598 LangStd = LangStandard::lang_gnucxx11; 1599 else 1600 LangStd = LangStandard::lang_gnucxx98; 1601 break; 1602 case IK_RenderScript: 1603 LangStd = LangStandard::lang_c99; 1604 break; 1605 } 1606 } 1607 1608 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1609 Opts.LineComment = Std.hasLineComments(); 1610 Opts.C99 = Std.isC99(); 1611 Opts.C11 = Std.isC11(); 1612 Opts.CPlusPlus = Std.isCPlusPlus(); 1613 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1614 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1615 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1616 Opts.Digraphs = Std.hasDigraphs(); 1617 Opts.GNUMode = Std.isGNUMode(); 1618 Opts.GNUInline = Std.isC89(); 1619 Opts.HexFloats = Std.hasHexFloats(); 1620 Opts.ImplicitInt = Std.hasImplicitInt(); 1621 1622 // Set OpenCL Version. 1623 Opts.OpenCL = Std.isOpenCL() || IK == IK_OpenCL; 1624 if (LangStd == LangStandard::lang_opencl) 1625 Opts.OpenCLVersion = 100; 1626 else if (LangStd == LangStandard::lang_opencl11) 1627 Opts.OpenCLVersion = 110; 1628 else if (LangStd == LangStandard::lang_opencl12) 1629 Opts.OpenCLVersion = 120; 1630 else if (LangStd == LangStandard::lang_opencl20) 1631 Opts.OpenCLVersion = 200; 1632 1633 // OpenCL has some additional defaults. 1634 if (Opts.OpenCL) { 1635 Opts.AltiVec = 0; 1636 Opts.ZVector = 0; 1637 Opts.LaxVectorConversions = 0; 1638 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 1639 Opts.NativeHalfType = 1; 1640 Opts.NativeHalfArgsAndReturns = 1; 1641 // Include default header file for OpenCL. 1642 if (Opts.IncludeDefaultHeader) { 1643 PPOpts.Includes.push_back("opencl-c.h"); 1644 } 1645 } 1646 1647 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || 1648 LangStd == LangStandard::lang_cuda; 1649 if (Opts.CUDA) 1650 // Set default FP_CONTRACT to FAST. 1651 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 1652 1653 Opts.RenderScript = IK == IK_RenderScript; 1654 if (Opts.RenderScript) { 1655 Opts.NativeHalfType = 1; 1656 Opts.NativeHalfArgsAndReturns = 1; 1657 } 1658 1659 // OpenCL and C++ both have bool, true, false keywords. 1660 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1661 1662 // OpenCL has half keyword 1663 Opts.Half = Opts.OpenCL; 1664 1665 // C++ has wchar_t keyword. 1666 Opts.WChar = Opts.CPlusPlus; 1667 1668 Opts.GNUKeywords = Opts.GNUMode; 1669 Opts.CXXOperatorNames = Opts.CPlusPlus; 1670 1671 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1672 1673 Opts.DollarIdents = !Opts.AsmPreprocessor; 1674 } 1675 1676 /// Attempt to parse a visibility value out of the given argument. 1677 static Visibility parseVisibility(Arg *arg, ArgList &args, 1678 DiagnosticsEngine &diags) { 1679 StringRef value = arg->getValue(); 1680 if (value == "default") { 1681 return DefaultVisibility; 1682 } else if (value == "hidden" || value == "internal") { 1683 return HiddenVisibility; 1684 } else if (value == "protected") { 1685 // FIXME: diagnose if target does not support protected visibility 1686 return ProtectedVisibility; 1687 } 1688 1689 diags.Report(diag::err_drv_invalid_value) 1690 << arg->getAsString(args) << value; 1691 return DefaultVisibility; 1692 } 1693 1694 /// Check if input file kind and language standard are compatible. 1695 static bool IsInputCompatibleWithStandard(InputKind IK, 1696 const LangStandard &S) { 1697 switch (IK) { 1698 case IK_C: 1699 case IK_ObjC: 1700 case IK_PreprocessedC: 1701 case IK_PreprocessedObjC: 1702 if (S.isC89() || S.isC99()) 1703 return true; 1704 break; 1705 case IK_CXX: 1706 case IK_ObjCXX: 1707 case IK_PreprocessedCXX: 1708 case IK_PreprocessedObjCXX: 1709 if (S.isCPlusPlus()) 1710 return true; 1711 break; 1712 case IK_OpenCL: 1713 if (S.isOpenCL()) 1714 return true; 1715 break; 1716 case IK_CUDA: 1717 case IK_PreprocessedCuda: 1718 if (S.isCPlusPlus()) 1719 return true; 1720 break; 1721 default: 1722 // For other inputs, accept (and ignore) all -std= values. 1723 return true; 1724 } 1725 return false; 1726 } 1727 1728 /// Get language name for given input kind. 1729 static const StringRef GetInputKindName(InputKind IK) { 1730 switch (IK) { 1731 case IK_C: 1732 case IK_ObjC: 1733 case IK_PreprocessedC: 1734 case IK_PreprocessedObjC: 1735 return "C/ObjC"; 1736 case IK_CXX: 1737 case IK_ObjCXX: 1738 case IK_PreprocessedCXX: 1739 case IK_PreprocessedObjCXX: 1740 return "C++/ObjC++"; 1741 case IK_OpenCL: 1742 return "OpenCL"; 1743 case IK_CUDA: 1744 case IK_PreprocessedCuda: 1745 return "CUDA"; 1746 default: 1747 llvm_unreachable("Cannot decide on name for InputKind!"); 1748 } 1749 } 1750 1751 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1752 const TargetOptions &TargetOpts, 1753 PreprocessorOptions &PPOpts, 1754 DiagnosticsEngine &Diags) { 1755 // FIXME: Cleanup per-file based stuff. 1756 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1757 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1758 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1759 #define LANGSTANDARD(id, name, desc, features) \ 1760 .Case(name, LangStandard::lang_##id) 1761 #define LANGSTANDARD_ALIAS(id, alias) \ 1762 .Case(alias, LangStandard::lang_##id) 1763 #include "clang/Frontend/LangStandards.def" 1764 .Default(LangStandard::lang_unspecified); 1765 if (LangStd == LangStandard::lang_unspecified) { 1766 Diags.Report(diag::err_drv_invalid_value) 1767 << A->getAsString(Args) << A->getValue(); 1768 // Report supported standards with short description. 1769 for (unsigned KindValue = 0; 1770 KindValue != LangStandard::lang_unspecified; 1771 ++KindValue) { 1772 const LangStandard &Std = LangStandard::getLangStandardForKind( 1773 static_cast<LangStandard::Kind>(KindValue)); 1774 if (IsInputCompatibleWithStandard(IK, Std)) { 1775 Diags.Report(diag::note_drv_use_standard) 1776 << Std.getName() << Std.getDescription(); 1777 } 1778 } 1779 } else { 1780 // Valid standard, check to make sure language and standard are 1781 // compatible. 1782 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1783 if (!IsInputCompatibleWithStandard(IK, Std)) { 1784 Diags.Report(diag::err_drv_argument_not_allowed_with) 1785 << A->getAsString(Args) << GetInputKindName(IK); 1786 } 1787 } 1788 } 1789 1790 // -cl-std only applies for OpenCL language standards. 1791 // Override the -std option in this case. 1792 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1793 LangStandard::Kind OpenCLLangStd 1794 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1795 .Cases("cl", "CL", LangStandard::lang_opencl) 1796 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1797 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1798 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1799 .Default(LangStandard::lang_unspecified); 1800 1801 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1802 Diags.Report(diag::err_drv_invalid_value) 1803 << A->getAsString(Args) << A->getValue(); 1804 } 1805 else 1806 LangStd = OpenCLLangStd; 1807 } 1808 1809 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1810 1811 llvm::Triple T(TargetOpts.Triple); 1812 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1813 1814 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1815 // This option should be deprecated for CL > 1.0 because 1816 // this option was added for compatibility with OpenCL 1.0. 1817 if (Args.getLastArg(OPT_cl_strict_aliasing) 1818 && Opts.OpenCLVersion > 100) { 1819 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1820 std::string(".") + 1821 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1822 Diags.Report(diag::warn_option_invalid_ocl_version) 1823 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1824 } 1825 1826 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1827 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1828 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1829 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1830 // name, as it doesn't seem a useful distinction. 1831 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1832 Opts.GNUKeywords); 1833 1834 if (Args.hasArg(OPT_fno_operator_names)) 1835 Opts.CXXOperatorNames = 0; 1836 1837 if (Args.hasArg(OPT_fcuda_is_device)) 1838 Opts.CUDAIsDevice = 1; 1839 1840 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1841 Opts.CUDAAllowVariadicFunctions = 1; 1842 1843 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1844 Opts.CUDAHostDeviceConstexpr = 0; 1845 1846 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1847 Opts.CUDADeviceFlushDenormalsToZero = 1; 1848 1849 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1850 Opts.CUDADeviceApproxTranscendentals = 1; 1851 1852 if (Opts.ObjC1) { 1853 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1854 StringRef value = arg->getValue(); 1855 if (Opts.ObjCRuntime.tryParse(value)) 1856 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1857 } 1858 1859 if (Args.hasArg(OPT_fobjc_gc_only)) 1860 Opts.setGC(LangOptions::GCOnly); 1861 else if (Args.hasArg(OPT_fobjc_gc)) 1862 Opts.setGC(LangOptions::HybridGC); 1863 else if (Args.hasArg(OPT_fobjc_arc)) { 1864 Opts.ObjCAutoRefCount = 1; 1865 if (!Opts.ObjCRuntime.allowsARC()) 1866 Diags.Report(diag::err_arc_unsupported_on_runtime); 1867 } 1868 1869 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 1870 // whether the feature is actually enabled. This is predominantly 1871 // determined by -fobjc-runtime, but we allow it to be overridden 1872 // from the command line for testing purposes. 1873 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1874 Opts.ObjCWeakRuntime = 1; 1875 else 1876 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 1877 1878 // ObjCWeak determines whether __weak is actually enabled. 1879 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 1880 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 1881 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 1882 assert(!Opts.ObjCWeak); 1883 } else if (Opts.getGC() != LangOptions::NonGC) { 1884 Diags.Report(diag::err_objc_weak_with_gc); 1885 } else if (!Opts.ObjCWeakRuntime) { 1886 Diags.Report(diag::err_objc_weak_unsupported); 1887 } else { 1888 Opts.ObjCWeak = 1; 1889 } 1890 } else if (Opts.ObjCAutoRefCount) { 1891 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 1892 } 1893 1894 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1895 Opts.ObjCInferRelatedResultType = 0; 1896 1897 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1898 Opts.ObjCSubscriptingLegacyRuntime = 1899 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1900 } 1901 1902 if (Args.hasArg(OPT_fgnu89_inline)) { 1903 if (Opts.CPlusPlus) 1904 Diags.Report(diag::err_drv_argument_not_allowed_with) 1905 << "-fgnu89-inline" << GetInputKindName(IK); 1906 else 1907 Opts.GNUInline = 1; 1908 } 1909 1910 if (Args.hasArg(OPT_fapple_kext)) { 1911 if (!Opts.CPlusPlus) 1912 Diags.Report(diag::warn_c_kext); 1913 else 1914 Opts.AppleKext = 1; 1915 } 1916 1917 if (Args.hasArg(OPT_print_ivar_layout)) 1918 Opts.ObjCGCBitmapPrint = 1; 1919 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1920 Opts.NoConstantCFStrings = 1; 1921 1922 if (Args.hasArg(OPT_fzvector)) 1923 Opts.ZVector = 1; 1924 1925 if (Args.hasArg(OPT_pthread)) 1926 Opts.POSIXThreads = 1; 1927 1928 // The value-visibility mode defaults to "default". 1929 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1930 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1931 } else { 1932 Opts.setValueVisibilityMode(DefaultVisibility); 1933 } 1934 1935 // The type-visibility mode defaults to the value-visibility mode. 1936 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1937 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1938 } else { 1939 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1940 } 1941 1942 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1943 Opts.InlineVisibilityHidden = 1; 1944 1945 if (Args.hasArg(OPT_ftrapv)) { 1946 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1947 // Set the handler, if one is specified. 1948 Opts.OverflowHandler = 1949 Args.getLastArgValue(OPT_ftrapv_handler); 1950 } 1951 else if (Args.hasArg(OPT_fwrapv)) 1952 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1953 1954 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1955 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1956 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1957 Opts.MSCompatibilityVersion = 0; 1958 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1959 VersionTuple VT; 1960 if (VT.tryParse(A->getValue())) 1961 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1962 << A->getValue(); 1963 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1964 VT.getMinor().getValueOr(0) * 100000 + 1965 VT.getSubminor().getValueOr(0); 1966 } 1967 1968 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1969 // is specified, or -std is set to a conforming mode. 1970 // Trigraphs are disabled by default in c++1z onwards. 1971 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1972 Opts.Trigraphs = 1973 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1974 1975 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1976 OPT_fno_dollars_in_identifiers, 1977 Opts.DollarIdents); 1978 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1979 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1980 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1981 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1982 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1983 Opts.ConstStrings); 1984 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1985 Opts.LaxVectorConversions = 0; 1986 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1987 Opts.ThreadsafeStatics = 0; 1988 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1989 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1990 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1991 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1992 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 1993 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1994 1995 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 1996 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1997 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 1998 && Opts.OpenCLVersion >= 200); 1999 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2000 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2001 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2002 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2003 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2004 Opts.ModulesDeclUse = 2005 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2006 Opts.ModulesLocalVisibility = 2007 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2008 Opts.ModularCodegen = Args.hasArg(OPT_fmodule_codegen); 2009 Opts.ModulesSearchAll = Opts.Modules && 2010 !Args.hasArg(OPT_fno_modules_search_all) && 2011 Args.hasArg(OPT_fmodules_search_all); 2012 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2013 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2014 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2015 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2016 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 2017 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2018 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2019 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2020 if (!Opts.NoBuiltin) 2021 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2022 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2023 Opts.RelaxedTemplateTemplateArgs = 2024 Args.hasArg(OPT_frelaxed_template_template_args); 2025 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2026 Opts.AlignedAllocation = 2027 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2028 Opts.AlignedAllocation); 2029 Opts.NewAlignOverride = 2030 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2031 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2032 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2033 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2034 << A->getValue(); 2035 Opts.NewAlignOverride = 0; 2036 } 2037 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2038 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2039 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2040 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2041 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2042 Opts.InstantiationDepth = 2043 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2044 Opts.ArrowDepth = 2045 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2046 Opts.ConstexprCallDepth = 2047 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2048 Opts.ConstexprStepLimit = 2049 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2050 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2051 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2052 Opts.NumLargeByValueCopy = 2053 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2054 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2055 Opts.ObjCConstantStringClass = 2056 Args.getLastArgValue(OPT_fconstant_string_class); 2057 Opts.ObjCDefaultSynthProperties = 2058 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2059 Opts.EncodeExtendedBlockSig = 2060 Args.hasArg(OPT_fencode_extended_block_signature); 2061 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2062 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2063 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2064 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2065 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2066 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2067 Opts.Static = Args.hasArg(OPT_static_define); 2068 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2069 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2070 || Args.hasArg(OPT_fdump_record_layouts); 2071 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2072 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2073 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2074 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2075 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2076 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2077 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2078 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2079 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2080 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2081 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2082 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2083 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2084 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2085 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2086 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2087 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2088 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2089 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2090 // is enabled. 2091 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2092 | Opts.NativeHalfArgsAndReturns; 2093 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2094 2095 // __declspec is enabled by default for the PS4 by the driver, and also 2096 // enabled for Microsoft Extensions or Borland Extensions, here. 2097 // 2098 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2099 // CUDA extension. However, it is required for supporting 2100 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2101 // been rewritten in terms of something more generic, remove the Opts.CUDA 2102 // term here. 2103 Opts.DeclSpecKeyword = 2104 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2105 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2106 2107 // For now, we only support local submodule visibility in C++ (because we 2108 // heavily depend on the ODR for merging redefinitions). 2109 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) 2110 Diags.Report(diag::err_drv_argument_not_allowed_with) 2111 << "-fmodules-local-submodule-visibility" << "C"; 2112 2113 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2114 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2115 .Case("target", LangOptions::ASMM_Target) 2116 .Case("no", LangOptions::ASMM_Off) 2117 .Case("yes", LangOptions::ASMM_On) 2118 .Default(255)) { 2119 default: 2120 Diags.Report(diag::err_drv_invalid_value) 2121 << "-faddress-space-map-mangling=" << A->getValue(); 2122 break; 2123 case LangOptions::ASMM_Target: 2124 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2125 break; 2126 case LangOptions::ASMM_On: 2127 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2128 break; 2129 case LangOptions::ASMM_Off: 2130 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2131 break; 2132 } 2133 } 2134 2135 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2136 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2137 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2138 A->getValue()) 2139 .Case("single", 2140 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2141 .Case("multiple", 2142 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2143 .Case("virtual", 2144 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2145 .Default(LangOptions::PPTMK_BestCase); 2146 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2147 Diags.Report(diag::err_drv_invalid_value) 2148 << "-fms-memptr-rep=" << A->getValue(); 2149 2150 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2151 } 2152 2153 // Check for MS default calling conventions being specified. 2154 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2155 LangOptions::DefaultCallingConvention DefaultCC = 2156 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2157 A->getValue()) 2158 .Case("cdecl", LangOptions::DCC_CDecl) 2159 .Case("fastcall", LangOptions::DCC_FastCall) 2160 .Case("stdcall", LangOptions::DCC_StdCall) 2161 .Case("vectorcall", LangOptions::DCC_VectorCall) 2162 .Default(LangOptions::DCC_None); 2163 if (DefaultCC == LangOptions::DCC_None) 2164 Diags.Report(diag::err_drv_invalid_value) 2165 << "-fdefault-calling-conv=" << A->getValue(); 2166 2167 llvm::Triple T(TargetOpts.Triple); 2168 llvm::Triple::ArchType Arch = T.getArch(); 2169 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2170 DefaultCC == LangOptions::DCC_StdCall) && 2171 Arch != llvm::Triple::x86; 2172 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2173 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2174 if (emitError) 2175 Diags.Report(diag::err_drv_argument_not_allowed_with) 2176 << A->getSpelling() << T.getTriple(); 2177 else 2178 Opts.setDefaultCallingConv(DefaultCC); 2179 } 2180 2181 // -mrtd option 2182 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2183 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2184 Diags.Report(diag::err_drv_argument_not_allowed_with) 2185 << A->getSpelling() << "-fdefault-calling-conv"; 2186 else { 2187 llvm::Triple T(TargetOpts.Triple); 2188 if (T.getArch() != llvm::Triple::x86) 2189 Diags.Report(diag::err_drv_argument_not_allowed_with) 2190 << A->getSpelling() << T.getTriple(); 2191 else 2192 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2193 } 2194 } 2195 2196 // Check if -fopenmp is specified. 2197 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2198 Opts.OpenMPUseTLS = 2199 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2200 Opts.OpenMPIsDevice = 2201 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2202 2203 if (Opts.OpenMP) { 2204 int Version = 2205 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2206 if (Version != 0) 2207 Opts.OpenMP = Version; 2208 // Provide diagnostic when a given target is not expected to be an OpenMP 2209 // device or host. 2210 if (!Opts.OpenMPIsDevice) { 2211 switch (T.getArch()) { 2212 default: 2213 break; 2214 // Add unsupported host targets here: 2215 case llvm::Triple::nvptx: 2216 case llvm::Triple::nvptx64: 2217 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2218 << TargetOpts.Triple; 2219 break; 2220 } 2221 } 2222 } 2223 2224 // Get the OpenMP target triples if any. 2225 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2226 2227 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2228 llvm::Triple TT(A->getValue(i)); 2229 2230 if (TT.getArch() == llvm::Triple::UnknownArch) 2231 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2232 else 2233 Opts.OMPTargetTriples.push_back(TT); 2234 } 2235 } 2236 2237 // Get OpenMP host file path if any and report if a non existent file is 2238 // found 2239 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2240 Opts.OMPHostIRFile = A->getValue(); 2241 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2242 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2243 << Opts.OMPHostIRFile; 2244 } 2245 2246 // Record whether the __DEPRECATED define was requested. 2247 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2248 OPT_fno_deprecated_macro, 2249 Opts.Deprecated); 2250 2251 // FIXME: Eliminate this dependency. 2252 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2253 OptSize = getOptimizationLevelSize(Args); 2254 Opts.Optimize = Opt != 0; 2255 Opts.OptimizeSize = OptSize != 0; 2256 2257 // This is the __NO_INLINE__ define, which just depends on things like the 2258 // optimization level and -fno-inline, not actually whether the backend has 2259 // inlining enabled. 2260 Opts.NoInlineDefine = !Opts.Optimize; 2261 if (Arg *InlineArg = Args.getLastArg( 2262 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2263 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2264 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2265 Opts.NoInlineDefine = true; 2266 2267 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2268 Args.hasArg(OPT_cl_fast_relaxed_math); 2269 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2270 Args.hasArg(OPT_cl_finite_math_only) || 2271 Args.hasArg(OPT_cl_fast_relaxed_math); 2272 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2273 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2274 Args.hasArg(OPT_cl_fast_relaxed_math); 2275 2276 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2277 StringRef Val = A->getValue(); 2278 if (Val == "fast") 2279 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2280 else if (Val == "on") 2281 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2282 else if (Val == "off") 2283 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2284 else 2285 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2286 } 2287 2288 Opts.RetainCommentsFromSystemHeaders = 2289 Args.hasArg(OPT_fretain_comments_from_system_headers); 2290 2291 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2292 switch (SSP) { 2293 default: 2294 Diags.Report(diag::err_drv_invalid_value) 2295 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2296 break; 2297 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2298 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2299 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2300 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2301 } 2302 2303 // Parse -fsanitize= arguments. 2304 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2305 Diags, Opts.Sanitize); 2306 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2307 Opts.SanitizeAddressFieldPadding = 2308 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2309 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2310 } 2311 2312 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2313 FileManager &FileMgr, 2314 DiagnosticsEngine &Diags) { 2315 using namespace options; 2316 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2317 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2318 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2319 Opts.TokenCache = A->getValue(); 2320 else 2321 Opts.TokenCache = Opts.ImplicitPTHInclude; 2322 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2323 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2324 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2325 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 2326 2327 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2328 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2329 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2330 2331 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2332 StringRef Value(A->getValue()); 2333 size_t Comma = Value.find(','); 2334 unsigned Bytes = 0; 2335 unsigned EndOfLine = 0; 2336 2337 if (Comma == StringRef::npos || 2338 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2339 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2340 Diags.Report(diag::err_drv_preamble_format); 2341 else { 2342 Opts.PrecompiledPreambleBytes.first = Bytes; 2343 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2344 } 2345 } 2346 2347 // Add macros from the command line. 2348 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2349 if (A->getOption().matches(OPT_D)) 2350 Opts.addMacroDef(A->getValue()); 2351 else 2352 Opts.addMacroUndef(A->getValue()); 2353 } 2354 2355 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2356 2357 // Add the ordered list of -includes. 2358 for (const Arg *A : Args.filtered(OPT_include)) 2359 Opts.Includes.emplace_back(A->getValue()); 2360 2361 for (const Arg *A : Args.filtered(OPT_chain_include)) 2362 Opts.ChainedIncludes.emplace_back(A->getValue()); 2363 2364 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2365 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2366 2367 if (Split.second.empty()) { 2368 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2369 continue; 2370 } 2371 2372 Opts.addRemappedFile(Split.first, Split.second); 2373 } 2374 2375 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2376 StringRef Name = A->getValue(); 2377 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2378 .Case("libc++", ARCXX_libcxx) 2379 .Case("libstdc++", ARCXX_libstdcxx) 2380 .Case("none", ARCXX_nolib) 2381 .Default(~0U); 2382 if (Library == ~0U) 2383 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2384 else 2385 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2386 } 2387 } 2388 2389 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2390 ArgList &Args, 2391 frontend::ActionKind Action) { 2392 using namespace options; 2393 2394 switch (Action) { 2395 case frontend::ASTDeclList: 2396 case frontend::ASTDump: 2397 case frontend::ASTPrint: 2398 case frontend::ASTView: 2399 case frontend::EmitAssembly: 2400 case frontend::EmitBC: 2401 case frontend::EmitHTML: 2402 case frontend::EmitLLVM: 2403 case frontend::EmitLLVMOnly: 2404 case frontend::EmitCodeGenOnly: 2405 case frontend::EmitObj: 2406 case frontend::FixIt: 2407 case frontend::GenerateModule: 2408 case frontend::GenerateModuleInterface: 2409 case frontend::GeneratePCH: 2410 case frontend::GeneratePTH: 2411 case frontend::ParseSyntaxOnly: 2412 case frontend::ModuleFileInfo: 2413 case frontend::VerifyPCH: 2414 case frontend::PluginAction: 2415 case frontend::PrintDeclContext: 2416 case frontend::RewriteObjC: 2417 case frontend::RewriteTest: 2418 case frontend::RunAnalysis: 2419 case frontend::MigrateSource: 2420 Opts.ShowCPP = 0; 2421 break; 2422 2423 case frontend::DumpRawTokens: 2424 case frontend::DumpTokens: 2425 case frontend::InitOnly: 2426 case frontend::PrintPreamble: 2427 case frontend::PrintPreprocessedInput: 2428 case frontend::RewriteMacros: 2429 case frontend::RunPreprocessorOnly: 2430 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2431 break; 2432 } 2433 2434 Opts.ShowComments = Args.hasArg(OPT_C); 2435 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2436 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2437 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2438 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2439 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2440 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2441 } 2442 2443 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2444 DiagnosticsEngine &Diags) { 2445 using namespace options; 2446 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2447 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2448 StringRef Value = A->getValue(); 2449 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2450 .Case("default", llvm::EABI::Default) 2451 .Case("4", llvm::EABI::EABI4) 2452 .Case("5", llvm::EABI::EABI5) 2453 .Case("gnu", llvm::EABI::GNU) 2454 .Default(llvm::EABI::Unknown); 2455 if (EABIVersion == llvm::EABI::Unknown) 2456 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2457 << Value; 2458 else 2459 Opts.EABIVersion = Value; 2460 } 2461 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2462 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2463 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2464 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2465 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2466 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2467 // Use the default target triple if unspecified. 2468 if (Opts.Triple.empty()) 2469 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2470 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2471 } 2472 2473 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2474 const char *const *ArgBegin, 2475 const char *const *ArgEnd, 2476 DiagnosticsEngine &Diags) { 2477 bool Success = true; 2478 2479 // Parse the arguments. 2480 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2481 const unsigned IncludedFlagsBitmask = options::CC1Option; 2482 unsigned MissingArgIndex, MissingArgCount; 2483 InputArgList Args = 2484 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2485 MissingArgCount, IncludedFlagsBitmask); 2486 LangOptions &LangOpts = *Res.getLangOpts(); 2487 2488 // Check for missing argument error. 2489 if (MissingArgCount) { 2490 Diags.Report(diag::err_drv_missing_argument) 2491 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2492 Success = false; 2493 } 2494 2495 // Issue errors on unknown arguments. 2496 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2497 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2498 Success = false; 2499 } 2500 2501 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2502 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2503 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2504 Success &= 2505 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2506 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2507 ParseCommentArgs(LangOpts.CommentOpts, Args); 2508 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2509 // FIXME: We shouldn't have to pass the DashX option around here 2510 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2511 LangOpts.IsHeaderFile); 2512 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2513 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2514 Res.getTargetOpts()); 2515 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2516 Res.getFileSystemOpts().WorkingDir); 2517 if (DashX == IK_AST || DashX == IK_LLVM_IR) { 2518 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2519 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2520 // what the input type is. 2521 if (Args.hasArg(OPT_fobjc_arc)) 2522 LangOpts.ObjCAutoRefCount = 1; 2523 // PIClevel and PIELevel are needed during code generation and this should be 2524 // set regardless of the input type. 2525 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2526 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2527 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2528 Diags, LangOpts.Sanitize); 2529 } else { 2530 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2531 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2532 Res.getPreprocessorOpts(), Diags); 2533 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2534 LangOpts.ObjCExceptions = 1; 2535 } 2536 2537 if (LangOpts.CUDA) { 2538 // During CUDA device-side compilation, the aux triple is the 2539 // triple used for host compilation. 2540 if (LangOpts.CUDAIsDevice) 2541 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2542 } 2543 2544 // FIXME: Override value name discarding when asan or msan is used because the 2545 // backend passes depend on the name of the alloca in order to print out 2546 // names. 2547 Res.getCodeGenOpts().DiscardValueNames &= 2548 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2549 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2550 2551 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2552 // PCH file and find the original header name. Remove the need to do that in 2553 // ParsePreprocessorArgs and remove the FileManager 2554 // parameters from the function and the "FileManager.h" #include. 2555 FileManager FileMgr(Res.getFileSystemOpts()); 2556 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags); 2557 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2558 Res.getFrontendOpts().ProgramAction); 2559 2560 // Turn on -Wspir-compat for SPIR target. 2561 llvm::Triple T(Res.getTargetOpts().Triple); 2562 auto Arch = T.getArch(); 2563 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2564 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2565 } 2566 return Success; 2567 } 2568 2569 std::string CompilerInvocation::getModuleHash() const { 2570 // Note: For QoI reasons, the things we use as a hash here should all be 2571 // dumped via the -module-info flag. 2572 using llvm::hash_code; 2573 using llvm::hash_value; 2574 using llvm::hash_combine; 2575 2576 // Start the signature with the compiler version. 2577 // FIXME: We'd rather use something more cryptographically sound than 2578 // CityHash, but this will do for now. 2579 hash_code code = hash_value(getClangFullRepositoryVersion()); 2580 2581 // Extend the signature with the language options 2582 #define LANGOPT(Name, Bits, Default, Description) \ 2583 code = hash_combine(code, LangOpts->Name); 2584 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2585 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2586 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2587 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2588 #include "clang/Basic/LangOptions.def" 2589 2590 for (StringRef Feature : LangOpts->ModuleFeatures) 2591 code = hash_combine(code, Feature); 2592 2593 // Extend the signature with the target options. 2594 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2595 TargetOpts->ABI); 2596 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2597 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2598 2599 // Extend the signature with preprocessor options. 2600 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2601 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2602 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2603 2604 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2605 I = getPreprocessorOpts().Macros.begin(), 2606 IEnd = getPreprocessorOpts().Macros.end(); 2607 I != IEnd; ++I) { 2608 // If we're supposed to ignore this macro for the purposes of modules, 2609 // don't put it into the hash. 2610 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2611 // Check whether we're ignoring this macro. 2612 StringRef MacroDef = I->first; 2613 if (hsOpts.ModulesIgnoreMacros.count( 2614 llvm::CachedHashString(MacroDef.split('=').first))) 2615 continue; 2616 } 2617 2618 code = hash_combine(code, I->first, I->second); 2619 } 2620 2621 // Extend the signature with the sysroot and other header search options. 2622 code = hash_combine(code, hsOpts.Sysroot, 2623 hsOpts.ModuleFormat, 2624 hsOpts.UseDebugInfo, 2625 hsOpts.UseBuiltinIncludes, 2626 hsOpts.UseStandardSystemIncludes, 2627 hsOpts.UseStandardCXXIncludes, 2628 hsOpts.UseLibcxx, 2629 hsOpts.ModulesValidateDiagnosticOptions); 2630 code = hash_combine(code, hsOpts.ResourceDir); 2631 2632 // Extend the signature with the user build path. 2633 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2634 2635 // Extend the signature with the module file extensions. 2636 const FrontendOptions &frontendOpts = getFrontendOpts(); 2637 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2638 code = ext->hashExtension(code); 2639 } 2640 2641 // Darwin-specific hack: if we have a sysroot, use the contents and 2642 // modification time of 2643 // $sysroot/System/Library/CoreServices/SystemVersion.plist 2644 // as part of the module hash. 2645 if (!hsOpts.Sysroot.empty()) { 2646 SmallString<128> systemVersionFile; 2647 systemVersionFile += hsOpts.Sysroot; 2648 llvm::sys::path::append(systemVersionFile, "System"); 2649 llvm::sys::path::append(systemVersionFile, "Library"); 2650 llvm::sys::path::append(systemVersionFile, "CoreServices"); 2651 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 2652 2653 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 2654 llvm::MemoryBuffer::getFile(systemVersionFile); 2655 if (buffer) { 2656 code = hash_combine(code, buffer.get()->getBuffer()); 2657 2658 struct stat statBuf; 2659 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 2660 code = hash_combine(code, statBuf.st_mtime); 2661 } 2662 } 2663 2664 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2665 } 2666 2667 namespace clang { 2668 2669 template<typename IntTy> 2670 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2671 IntTy Default, 2672 DiagnosticsEngine *Diags) { 2673 IntTy Res = Default; 2674 if (Arg *A = Args.getLastArg(Id)) { 2675 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2676 if (Diags) 2677 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2678 << A->getValue(); 2679 } 2680 } 2681 return Res; 2682 } 2683 2684 2685 // Declared in clang/Frontend/Utils.h. 2686 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2687 DiagnosticsEngine *Diags) { 2688 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2689 } 2690 2691 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2692 uint64_t Default, 2693 DiagnosticsEngine *Diags) { 2694 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2695 } 2696 2697 void BuryPointer(const void *Ptr) { 2698 // This function may be called only a small fixed amount of times per each 2699 // invocation, otherwise we do actually have a leak which we want to report. 2700 // If this function is called more than kGraveYardMaxSize times, the pointers 2701 // will not be properly buried and a leak detector will report a leak, which 2702 // is what we want in such case. 2703 static const size_t kGraveYardMaxSize = 16; 2704 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2705 static std::atomic<unsigned> GraveYardSize; 2706 unsigned Idx = GraveYardSize++; 2707 if (Idx >= kGraveYardMaxSize) 2708 return; 2709 GraveYard[Idx] = Ptr; 2710 } 2711 2712 IntrusiveRefCntPtr<vfs::FileSystem> 2713 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2714 DiagnosticsEngine &Diags) { 2715 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2716 return vfs::getRealFileSystem(); 2717 2718 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2719 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2720 // earlier vfs files are on the bottom 2721 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2722 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2723 llvm::MemoryBuffer::getFile(File); 2724 if (!Buffer) { 2725 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2726 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2727 } 2728 2729 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2730 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2731 if (!FS.get()) { 2732 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2733 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2734 } 2735 Overlay->pushOverlay(FS); 2736 } 2737 return Overlay; 2738 } 2739 } // end namespace clang 2740