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