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.getLanguage() == InputKind::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 static StringRef getRelocModel(ArgList &Args, DiagnosticsEngine &Diags) { 334 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 335 StringRef Value = A->getValue(); 336 if (Value == "static" || Value == "pic" || Value == "ropi" || 337 Value == "rwpi" || Value == "ropi-rwpi" || Value == "dynamic-no-pic") 338 return Value; 339 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 340 } 341 return "pic"; 342 } 343 344 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 345 /// It returns a pointer to the newly generated Regex instance. 346 static std::shared_ptr<llvm::Regex> 347 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 348 Arg *RpassArg) { 349 StringRef Val = RpassArg->getValue(); 350 std::string RegexError; 351 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 352 if (!Pattern->isValid(RegexError)) { 353 Diags.Report(diag::err_drv_optimization_remark_pattern) 354 << RegexError << RpassArg->getAsString(Args); 355 Pattern.reset(); 356 } 357 return Pattern; 358 } 359 360 static bool parseDiagnosticLevelMask(StringRef FlagName, 361 const std::vector<std::string> &Levels, 362 DiagnosticsEngine *Diags, 363 DiagnosticLevelMask &M) { 364 bool Success = true; 365 for (const auto &Level : Levels) { 366 DiagnosticLevelMask const PM = 367 llvm::StringSwitch<DiagnosticLevelMask>(Level) 368 .Case("note", DiagnosticLevelMask::Note) 369 .Case("remark", DiagnosticLevelMask::Remark) 370 .Case("warning", DiagnosticLevelMask::Warning) 371 .Case("error", DiagnosticLevelMask::Error) 372 .Default(DiagnosticLevelMask::None); 373 if (PM == DiagnosticLevelMask::None) { 374 Success = false; 375 if (Diags) 376 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 377 } 378 M = M | PM; 379 } 380 return Success; 381 } 382 383 static void parseSanitizerKinds(StringRef FlagName, 384 const std::vector<std::string> &Sanitizers, 385 DiagnosticsEngine &Diags, SanitizerSet &S) { 386 for (const auto &Sanitizer : Sanitizers) { 387 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 388 if (K == 0) 389 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 390 else 391 S.set(K, true); 392 } 393 } 394 395 // Set the profile kind for fprofile-instrument. 396 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 397 DiagnosticsEngine &Diags) { 398 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 399 if (A == nullptr) 400 return; 401 StringRef S = A->getValue(); 402 unsigned I = llvm::StringSwitch<unsigned>(S) 403 .Case("none", CodeGenOptions::ProfileNone) 404 .Case("clang", CodeGenOptions::ProfileClangInstr) 405 .Case("llvm", CodeGenOptions::ProfileIRInstr) 406 .Default(~0U); 407 if (I == ~0U) { 408 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 409 << S; 410 return; 411 } 412 CodeGenOptions::ProfileInstrKind Instrumentor = 413 static_cast<CodeGenOptions::ProfileInstrKind>(I); 414 Opts.setProfileInstr(Instrumentor); 415 } 416 417 // Set the profile kind using fprofile-instrument-use-path. 418 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 419 const Twine &ProfileName) { 420 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 421 // In error, return silently and let Clang PGOUse report the error message. 422 if (auto E = ReaderOrErr.takeError()) { 423 llvm::consumeError(std::move(E)); 424 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 425 return; 426 } 427 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 428 std::move(ReaderOrErr.get()); 429 if (PGOReader->isIRLevelProfile()) 430 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 431 else 432 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 433 } 434 435 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 436 DiagnosticsEngine &Diags, 437 const TargetOptions &TargetOpts) { 438 using namespace options; 439 bool Success = true; 440 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 441 442 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 443 // TODO: This could be done in Driver 444 unsigned MaxOptLevel = 3; 445 if (OptimizationLevel > MaxOptLevel) { 446 // If the optimization level is not supported, fall back on the default 447 // optimization 448 Diags.Report(diag::warn_drv_optimization_value) 449 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 450 OptimizationLevel = MaxOptLevel; 451 } 452 Opts.OptimizationLevel = OptimizationLevel; 453 454 // At O0 we want to fully disable inlining outside of cases marked with 455 // 'alwaysinline' that are required for correctness. 456 Opts.setInlining((Opts.OptimizationLevel == 0) 457 ? CodeGenOptions::OnlyAlwaysInlining 458 : CodeGenOptions::NormalInlining); 459 // Explicit inlining flags can disable some or all inlining even at 460 // optimization levels above zero. 461 if (Arg *InlineArg = Args.getLastArg( 462 options::OPT_finline_functions, options::OPT_finline_hint_functions, 463 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 464 if (Opts.OptimizationLevel > 0) { 465 const Option &InlineOpt = InlineArg->getOption(); 466 if (InlineOpt.matches(options::OPT_finline_functions)) 467 Opts.setInlining(CodeGenOptions::NormalInlining); 468 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 469 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 470 else 471 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 472 } 473 } 474 475 Opts.ExperimentalNewPassManager = Args.hasFlag( 476 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 477 /* Default */ false); 478 479 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 480 StringRef Name = A->getValue(); 481 if (Name == "Accelerate") 482 Opts.setVecLib(CodeGenOptions::Accelerate); 483 else if (Name == "SVML") 484 Opts.setVecLib(CodeGenOptions::SVML); 485 else if (Name == "none") 486 Opts.setVecLib(CodeGenOptions::NoLibrary); 487 else 488 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 489 } 490 491 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 492 unsigned Val = 493 llvm::StringSwitch<unsigned>(A->getValue()) 494 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 495 .Case("limited", codegenoptions::LimitedDebugInfo) 496 .Case("standalone", codegenoptions::FullDebugInfo) 497 .Default(~0U); 498 if (Val == ~0U) 499 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 500 << A->getValue(); 501 else 502 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 503 } 504 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 505 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 506 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 507 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 508 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 509 .Default(~0U); 510 if (Val == ~0U) 511 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 512 << A->getValue(); 513 else 514 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 515 } 516 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 517 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 518 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 519 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 520 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 521 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 522 Opts.EnableSplitDwarf = Args.hasArg(OPT_enable_split_dwarf); 523 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 524 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 525 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 526 Opts.DebugExplicitImport = Triple.isPS4CPU(); 527 528 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 529 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 530 531 if (const Arg *A = 532 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 533 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 534 535 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 536 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 537 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 538 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 539 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 540 OPT_fuse_register_sized_bitfield_access); 541 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 542 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 543 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 544 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 545 Opts.NoCommon = Args.hasArg(OPT_fno_common); 546 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 547 Opts.OptimizeSize = getOptimizationLevelSize(Args); 548 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 549 Args.hasArg(OPT_ffreestanding)); 550 if (Opts.SimplifyLibCalls) 551 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 552 Opts.UnrollLoops = 553 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 554 (Opts.OptimizationLevel > 1)); 555 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 556 557 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 558 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 559 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 560 Opts.DebugInfoForProfiling = Args.hasFlag( 561 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 562 563 setPGOInstrumentor(Opts, Args, Diags); 564 Opts.InstrProfileOutput = 565 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 566 Opts.ProfileInstrumentUsePath = 567 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 568 if (!Opts.ProfileInstrumentUsePath.empty()) 569 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 570 571 Opts.CoverageMapping = 572 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 573 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 574 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 575 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 576 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 577 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 578 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 579 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 580 Opts.CodeModel = getCodeModel(Args, Diags); 581 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 582 Opts.DisableFPElim = 583 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 584 Opts.DisableFree = Args.hasArg(OPT_disable_free); 585 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 586 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 587 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 588 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 589 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 590 Args.hasArg(OPT_cl_fast_relaxed_math); 591 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 592 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 593 Args.hasArg(OPT_cl_finite_math_only) || 594 Args.hasArg(OPT_cl_fast_relaxed_math)); 595 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 596 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 597 Args.hasArg(OPT_cl_finite_math_only) || 598 Args.hasArg(OPT_cl_fast_relaxed_math)); 599 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 600 Args.hasArg(OPT_cl_no_signed_zeros) || 601 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 602 Args.hasArg(OPT_cl_fast_relaxed_math)); 603 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 604 Opts.CorrectlyRoundedDivSqrt = 605 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 606 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 607 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 608 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 609 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 610 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 611 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 612 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 613 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 614 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 615 Opts.IncrementalLinkerCompatible = 616 Args.hasArg(OPT_mincremental_linker_compatible); 617 Opts.PIECopyRelocations = 618 Args.hasArg(OPT_mpie_copy_relocations); 619 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 620 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 621 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 622 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 623 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 624 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 625 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 626 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 627 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 628 Args.hasArg(OPT_cl_fast_relaxed_math); 629 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 630 Opts.RelocationModel = getRelocModel(Args, Diags); 631 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 632 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 633 Diags.Report(diag::err_drv_invalid_value) 634 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 635 << Opts.ThreadModel; 636 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 637 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 638 639 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 640 OPT_fno_function_sections, false); 641 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 642 OPT_fno_data_sections, false); 643 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 644 OPT_fno_unique_section_names, true); 645 646 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 647 648 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 649 650 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 651 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ); 652 Opts.EmitSummaryIndex = A && A->containsValue("thin"); 653 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 654 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 655 if (IK.getLanguage() != InputKind::LLVM_IR) 656 Diags.Report(diag::err_drv_argument_only_allowed_with) 657 << A->getAsString(Args) << "-x ir"; 658 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 659 } 660 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 661 662 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 663 664 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 665 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 666 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 667 668 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 669 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 670 671 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 672 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 673 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 674 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 675 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 676 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 677 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 678 Opts.CoverageNoFunctionNamesInData = 679 Args.hasArg(OPT_coverage_no_function_names_in_data); 680 Opts.CoverageExitBlockBeforeBody = 681 Args.hasArg(OPT_coverage_exit_block_before_body); 682 if (Args.hasArg(OPT_coverage_version_EQ)) { 683 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 684 if (CoverageVersion.size() != 4) { 685 Diags.Report(diag::err_drv_invalid_value) 686 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 687 << CoverageVersion; 688 } else { 689 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 690 } 691 } 692 } 693 // Handle -fembed-bitcode option. 694 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 695 StringRef Name = A->getValue(); 696 unsigned Model = llvm::StringSwitch<unsigned>(Name) 697 .Case("off", CodeGenOptions::Embed_Off) 698 .Case("all", CodeGenOptions::Embed_All) 699 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 700 .Case("marker", CodeGenOptions::Embed_Marker) 701 .Default(~0U); 702 if (Model == ~0U) { 703 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 704 Success = false; 705 } else 706 Opts.setEmbedBitcode( 707 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 708 } 709 // FIXME: For backend options that are not yet recorded as function 710 // attributes in the IR, keep track of them so we can embed them in a 711 // separate data section and use them when building the bitcode. 712 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 713 for (const auto &A : Args) { 714 // Do not encode output and input. 715 if (A->getOption().getID() == options::OPT_o || 716 A->getOption().getID() == options::OPT_INPUT || 717 A->getOption().getID() == options::OPT_x || 718 A->getOption().getID() == options::OPT_fembed_bitcode || 719 (A->getOption().getGroup().isValid() && 720 A->getOption().getGroup().getID() == options::OPT_W_Group)) 721 continue; 722 ArgStringList ASL; 723 A->render(Args, ASL); 724 for (const auto &arg : ASL) { 725 StringRef ArgStr(arg); 726 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 727 // using \00 to seperate each commandline options. 728 Opts.CmdArgs.push_back('\0'); 729 } 730 } 731 } 732 733 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 734 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 735 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 736 Opts.XRayInstructionThreshold = 737 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 738 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 739 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 740 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 741 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 742 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 743 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 744 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 745 CodeGenOptions::BitcodeFileToLink F; 746 F.Filename = A->getValue(); 747 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) { 748 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 749 // When linking CUDA bitcode, propagate function attributes so that 750 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 751 F.PropagateAttrs = true; 752 F.Internalize = true; 753 } 754 Opts.LinkBitcodeFiles.push_back(F); 755 } 756 Opts.SanitizeCoverageType = 757 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 758 Opts.SanitizeCoverageIndirectCalls = 759 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 760 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 761 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 762 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 763 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 764 Opts.SanitizeCoverage8bitCounters = 765 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 766 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 767 Opts.SanitizeCoverageTracePCGuard = 768 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 769 Opts.SanitizeMemoryTrackOrigins = 770 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 771 Opts.SanitizeMemoryUseAfterDtor = 772 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 773 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 774 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 775 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 776 OPT_fno_sanitize_address_use_after_scope)) { 777 Opts.SanitizeAddressUseAfterScope = 778 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 779 } 780 Opts.SSPBufferSize = 781 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 782 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 783 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 784 StringRef Val = A->getValue(); 785 unsigned StackAlignment = Opts.StackAlignment; 786 Val.getAsInteger(10, StackAlignment); 787 Opts.StackAlignment = StackAlignment; 788 } 789 790 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 791 StringRef Val = A->getValue(); 792 unsigned StackProbeSize = Opts.StackProbeSize; 793 Val.getAsInteger(0, StackProbeSize); 794 Opts.StackProbeSize = StackProbeSize; 795 } 796 797 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 798 StringRef Name = A->getValue(); 799 unsigned Method = llvm::StringSwitch<unsigned>(Name) 800 .Case("legacy", CodeGenOptions::Legacy) 801 .Case("non-legacy", CodeGenOptions::NonLegacy) 802 .Case("mixed", CodeGenOptions::Mixed) 803 .Default(~0U); 804 if (Method == ~0U) { 805 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 806 Success = false; 807 } else { 808 Opts.setObjCDispatchMethod( 809 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 810 } 811 } 812 813 Opts.EmulatedTLS = 814 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 815 816 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 817 StringRef Name = A->getValue(); 818 unsigned Model = llvm::StringSwitch<unsigned>(Name) 819 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 820 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 821 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 822 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 823 .Default(~0U); 824 if (Model == ~0U) { 825 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 826 Success = false; 827 } else { 828 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 829 } 830 } 831 832 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 833 StringRef Val = A->getValue(); 834 if (Val == "ieee") 835 Opts.FPDenormalMode = "ieee"; 836 else if (Val == "preserve-sign") 837 Opts.FPDenormalMode = "preserve-sign"; 838 else if (Val == "positive-zero") 839 Opts.FPDenormalMode = "positive-zero"; 840 else 841 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 842 } 843 844 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 845 if (A->getOption().matches(OPT_fpcc_struct_return)) { 846 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 847 } else { 848 assert(A->getOption().matches(OPT_freg_struct_return)); 849 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 850 } 851 } 852 853 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 854 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 855 bool NeedLocTracking = false; 856 857 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 858 if (!Opts.OptRecordFile.empty()) 859 NeedLocTracking = true; 860 861 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 862 Opts.OptimizationRemarkPattern = 863 GenerateOptimizationRemarkRegex(Diags, Args, A); 864 NeedLocTracking = true; 865 } 866 867 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 868 Opts.OptimizationRemarkMissedPattern = 869 GenerateOptimizationRemarkRegex(Diags, Args, A); 870 NeedLocTracking = true; 871 } 872 873 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 874 Opts.OptimizationRemarkAnalysisPattern = 875 GenerateOptimizationRemarkRegex(Diags, Args, A); 876 NeedLocTracking = true; 877 } 878 879 Opts.DiagnosticsWithHotness = 880 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 881 if (Opts.DiagnosticsWithHotness && 882 Opts.getProfileUse() == CodeGenOptions::ProfileNone) 883 Diags.Report(diag::warn_drv_fdiagnostics_show_hotness_requires_pgo); 884 885 // If the user requested to use a sample profile for PGO, then the 886 // backend will need to track source location information so the profile 887 // can be incorporated into the IR. 888 if (!Opts.SampleProfileFile.empty()) 889 NeedLocTracking = true; 890 891 // If the user requested a flag that requires source locations available in 892 // the backend, make sure that the backend tracks source location information. 893 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 894 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 895 896 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 897 898 // Parse -fsanitize-recover= arguments. 899 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 900 parseSanitizerKinds("-fsanitize-recover=", 901 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 902 Opts.SanitizeRecover); 903 parseSanitizerKinds("-fsanitize-trap=", 904 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 905 Opts.SanitizeTrap); 906 907 Opts.CudaGpuBinaryFileNames = 908 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 909 910 Opts.Backchain = Args.hasArg(OPT_mbackchain); 911 912 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 913 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 914 915 return Success; 916 } 917 918 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 919 ArgList &Args) { 920 using namespace options; 921 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 922 Opts.Targets = Args.getAllArgValues(OPT_MT); 923 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 924 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 925 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 926 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 927 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 928 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 929 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 930 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 931 Opts.ModuleDependencyOutputDir = 932 Args.getLastArgValue(OPT_module_dependency_dir); 933 if (Args.hasArg(OPT_MV)) 934 Opts.OutputFormat = DependencyOutputFormat::NMake; 935 // Add sanitizer blacklists as extra dependencies. 936 // They won't be discovered by the regular preprocessor, so 937 // we let make / ninja to know about this implicit dependency. 938 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 939 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 940 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 941 ModuleFiles.end()); 942 } 943 944 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 945 // Color diagnostics default to auto ("on" if terminal supports) in the driver 946 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 947 // Support both clang's -f[no-]color-diagnostics and gcc's 948 // -f[no-]diagnostics-colors[=never|always|auto]. 949 enum { 950 Colors_On, 951 Colors_Off, 952 Colors_Auto 953 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 954 for (Arg *A : Args) { 955 const Option &O = A->getOption(); 956 if (O.matches(options::OPT_fcolor_diagnostics) || 957 O.matches(options::OPT_fdiagnostics_color)) { 958 ShowColors = Colors_On; 959 } else if (O.matches(options::OPT_fno_color_diagnostics) || 960 O.matches(options::OPT_fno_diagnostics_color)) { 961 ShowColors = Colors_Off; 962 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 963 StringRef Value(A->getValue()); 964 if (Value == "always") 965 ShowColors = Colors_On; 966 else if (Value == "never") 967 ShowColors = Colors_Off; 968 else if (Value == "auto") 969 ShowColors = Colors_Auto; 970 } 971 } 972 return ShowColors == Colors_On || 973 (ShowColors == Colors_Auto && 974 llvm::sys::Process::StandardErrHasColors()); 975 } 976 977 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 978 DiagnosticsEngine *Diags, 979 bool DefaultDiagColor, bool DefaultShowOpt) { 980 using namespace options; 981 bool Success = true; 982 983 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 984 if (Arg *A = 985 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 986 Opts.DiagnosticSerializationFile = A->getValue(); 987 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 988 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 989 Opts.Pedantic = Args.hasArg(OPT_pedantic); 990 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 991 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 992 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 993 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 994 OPT_fno_show_column, 995 /*Default=*/true); 996 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 997 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 998 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 999 Opts.ShowOptionNames = 1000 Args.hasFlag(OPT_fdiagnostics_show_option, 1001 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1002 1003 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1004 1005 // Default behavior is to not to show note include stacks. 1006 Opts.ShowNoteIncludeStack = false; 1007 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1008 OPT_fno_diagnostics_show_note_include_stack)) 1009 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1010 Opts.ShowNoteIncludeStack = true; 1011 1012 StringRef ShowOverloads = 1013 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1014 if (ShowOverloads == "best") 1015 Opts.setShowOverloads(Ovl_Best); 1016 else if (ShowOverloads == "all") 1017 Opts.setShowOverloads(Ovl_All); 1018 else { 1019 Success = false; 1020 if (Diags) 1021 Diags->Report(diag::err_drv_invalid_value) 1022 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1023 << ShowOverloads; 1024 } 1025 1026 StringRef ShowCategory = 1027 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1028 if (ShowCategory == "none") 1029 Opts.ShowCategories = 0; 1030 else if (ShowCategory == "id") 1031 Opts.ShowCategories = 1; 1032 else if (ShowCategory == "name") 1033 Opts.ShowCategories = 2; 1034 else { 1035 Success = false; 1036 if (Diags) 1037 Diags->Report(diag::err_drv_invalid_value) 1038 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1039 << ShowCategory; 1040 } 1041 1042 StringRef Format = 1043 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1044 if (Format == "clang") 1045 Opts.setFormat(DiagnosticOptions::Clang); 1046 else if (Format == "msvc") 1047 Opts.setFormat(DiagnosticOptions::MSVC); 1048 else if (Format == "msvc-fallback") { 1049 Opts.setFormat(DiagnosticOptions::MSVC); 1050 Opts.CLFallbackMode = true; 1051 } else if (Format == "vi") 1052 Opts.setFormat(DiagnosticOptions::Vi); 1053 else { 1054 Success = false; 1055 if (Diags) 1056 Diags->Report(diag::err_drv_invalid_value) 1057 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1058 << Format; 1059 } 1060 1061 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1062 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1063 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1064 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1065 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1066 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1067 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1068 Diags, DiagMask); 1069 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1070 DiagMask = DiagnosticLevelMask::All; 1071 Opts.setVerifyIgnoreUnexpected(DiagMask); 1072 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1073 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1074 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1075 Opts.MacroBacktraceLimit = 1076 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1077 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1078 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1079 Args, OPT_ftemplate_backtrace_limit, 1080 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1081 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1082 Args, OPT_fconstexpr_backtrace_limit, 1083 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1084 Opts.SpellCheckingLimit = getLastArgIntValue( 1085 Args, OPT_fspell_checking_limit, 1086 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1087 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1088 DiagnosticOptions::DefaultTabStop, Diags); 1089 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1090 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1091 if (Diags) 1092 Diags->Report(diag::warn_ignoring_ftabstop_value) 1093 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1094 } 1095 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1096 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1097 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1098 1099 return Success; 1100 } 1101 1102 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1103 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1104 } 1105 1106 /// Parse the argument to the -ftest-module-file-extension 1107 /// command-line argument. 1108 /// 1109 /// \returns true on error, false on success. 1110 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1111 std::string &BlockName, 1112 unsigned &MajorVersion, 1113 unsigned &MinorVersion, 1114 bool &Hashed, 1115 std::string &UserInfo) { 1116 SmallVector<StringRef, 5> Args; 1117 Arg.split(Args, ':', 5); 1118 if (Args.size() < 5) 1119 return true; 1120 1121 BlockName = Args[0]; 1122 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1123 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1124 if (Args[3].getAsInteger(2, Hashed)) return true; 1125 if (Args.size() > 4) 1126 UserInfo = Args[4]; 1127 return false; 1128 } 1129 1130 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1131 DiagnosticsEngine &Diags, 1132 bool &IsHeaderFile) { 1133 using namespace options; 1134 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1135 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1136 switch (A->getOption().getID()) { 1137 default: 1138 llvm_unreachable("Invalid option in group!"); 1139 case OPT_ast_list: 1140 Opts.ProgramAction = frontend::ASTDeclList; break; 1141 case OPT_ast_dump: 1142 case OPT_ast_dump_all: 1143 case OPT_ast_dump_lookups: 1144 Opts.ProgramAction = frontend::ASTDump; break; 1145 case OPT_ast_print: 1146 Opts.ProgramAction = frontend::ASTPrint; break; 1147 case OPT_ast_view: 1148 Opts.ProgramAction = frontend::ASTView; break; 1149 case OPT_dump_raw_tokens: 1150 Opts.ProgramAction = frontend::DumpRawTokens; break; 1151 case OPT_dump_tokens: 1152 Opts.ProgramAction = frontend::DumpTokens; break; 1153 case OPT_S: 1154 Opts.ProgramAction = frontend::EmitAssembly; break; 1155 case OPT_emit_llvm_bc: 1156 Opts.ProgramAction = frontend::EmitBC; break; 1157 case OPT_emit_html: 1158 Opts.ProgramAction = frontend::EmitHTML; break; 1159 case OPT_emit_llvm: 1160 Opts.ProgramAction = frontend::EmitLLVM; break; 1161 case OPT_emit_llvm_only: 1162 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1163 case OPT_emit_codegen_only: 1164 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1165 case OPT_emit_obj: 1166 Opts.ProgramAction = frontend::EmitObj; break; 1167 case OPT_fixit_EQ: 1168 Opts.FixItSuffix = A->getValue(); 1169 // fall-through! 1170 case OPT_fixit: 1171 Opts.ProgramAction = frontend::FixIt; break; 1172 case OPT_emit_module: 1173 Opts.ProgramAction = frontend::GenerateModule; break; 1174 case OPT_emit_module_interface: 1175 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1176 case OPT_emit_pch: 1177 Opts.ProgramAction = frontend::GeneratePCH; break; 1178 case OPT_emit_pth: 1179 Opts.ProgramAction = frontend::GeneratePTH; break; 1180 case OPT_init_only: 1181 Opts.ProgramAction = frontend::InitOnly; break; 1182 case OPT_fsyntax_only: 1183 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1184 case OPT_module_file_info: 1185 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1186 case OPT_verify_pch: 1187 Opts.ProgramAction = frontend::VerifyPCH; break; 1188 case OPT_print_decl_contexts: 1189 Opts.ProgramAction = frontend::PrintDeclContext; break; 1190 case OPT_print_preamble: 1191 Opts.ProgramAction = frontend::PrintPreamble; break; 1192 case OPT_E: 1193 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1194 case OPT_rewrite_macros: 1195 Opts.ProgramAction = frontend::RewriteMacros; break; 1196 case OPT_rewrite_objc: 1197 Opts.ProgramAction = frontend::RewriteObjC; break; 1198 case OPT_rewrite_test: 1199 Opts.ProgramAction = frontend::RewriteTest; break; 1200 case OPT_analyze: 1201 Opts.ProgramAction = frontend::RunAnalysis; break; 1202 case OPT_migrate: 1203 Opts.ProgramAction = frontend::MigrateSource; break; 1204 case OPT_Eonly: 1205 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1206 } 1207 } 1208 1209 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1210 Opts.Plugins.emplace_back(A->getValue(0)); 1211 Opts.ProgramAction = frontend::PluginAction; 1212 Opts.ActionName = A->getValue(); 1213 } 1214 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1215 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1216 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1217 1218 for (const std::string &Arg : 1219 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1220 std::string BlockName; 1221 unsigned MajorVersion; 1222 unsigned MinorVersion; 1223 bool Hashed; 1224 std::string UserInfo; 1225 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1226 MinorVersion, Hashed, UserInfo)) { 1227 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1228 1229 continue; 1230 } 1231 1232 // Add the testing module file extension. 1233 Opts.ModuleFileExtensions.push_back( 1234 std::make_shared<TestModuleFileExtension>( 1235 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1236 } 1237 1238 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1239 Opts.CodeCompletionAt = 1240 ParsedSourceLocation::FromString(A->getValue()); 1241 if (Opts.CodeCompletionAt.FileName.empty()) 1242 Diags.Report(diag::err_drv_invalid_value) 1243 << A->getAsString(Args) << A->getValue(); 1244 } 1245 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1246 1247 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1248 Opts.Plugins = Args.getAllArgValues(OPT_load); 1249 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1250 Opts.ShowHelp = Args.hasArg(OPT_help); 1251 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1252 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1253 Opts.ShowVersion = Args.hasArg(OPT_version); 1254 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1255 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1256 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1257 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1258 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1259 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1260 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1261 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1262 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1263 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1264 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1265 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1266 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1267 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 1268 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1269 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1270 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1271 1272 Opts.CodeCompleteOpts.IncludeMacros 1273 = Args.hasArg(OPT_code_completion_macros); 1274 Opts.CodeCompleteOpts.IncludeCodePatterns 1275 = Args.hasArg(OPT_code_completion_patterns); 1276 Opts.CodeCompleteOpts.IncludeGlobals 1277 = !Args.hasArg(OPT_no_code_completion_globals); 1278 Opts.CodeCompleteOpts.IncludeBriefComments 1279 = Args.hasArg(OPT_code_completion_brief_comments); 1280 1281 Opts.OverrideRecordLayoutsFile 1282 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1283 Opts.AuxTriple = 1284 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1285 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1286 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1287 1288 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1289 OPT_arcmt_modify, 1290 OPT_arcmt_migrate)) { 1291 switch (A->getOption().getID()) { 1292 default: 1293 llvm_unreachable("missed a case"); 1294 case OPT_arcmt_check: 1295 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1296 break; 1297 case OPT_arcmt_modify: 1298 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1299 break; 1300 case OPT_arcmt_migrate: 1301 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1302 break; 1303 } 1304 } 1305 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1306 Opts.ARCMTMigrateReportOut 1307 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1308 Opts.ARCMTMigrateEmitARCErrors 1309 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1310 1311 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1312 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1313 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1314 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1315 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1316 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1317 if (Args.hasArg(OPT_objcmt_migrate_property)) 1318 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1319 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1320 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1321 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1322 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1323 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1324 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1325 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1326 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1327 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1328 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1329 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1330 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1331 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1332 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1333 if (Args.hasArg(OPT_objcmt_atomic_property)) 1334 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1335 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1336 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1337 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1338 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1339 if (Args.hasArg(OPT_objcmt_migrate_all)) 1340 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1341 1342 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1343 1344 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1345 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1346 Diags.Report(diag::err_drv_argument_not_allowed_with) 1347 << "ARC migration" << "ObjC migration"; 1348 } 1349 1350 InputKind DashX(InputKind::Unknown); 1351 if (const Arg *A = Args.getLastArg(OPT_x)) { 1352 StringRef XValue = A->getValue(); 1353 DashX = llvm::StringSwitch<InputKind>(XValue) 1354 .Cases("c", "c-header", "cpp-output", InputKind::C) 1355 .Cases("cl", "cl-header", InputKind::OpenCL) 1356 .Cases("cuda", "cuda-cpp-output", InputKind::CUDA) 1357 .Cases("c++", "c++-header", "c++-cpp-output", InputKind::CXX) 1358 .Cases("objective-c", "objective-c-header", 1359 "objective-c-cpp-output", "objc-cpp-output", 1360 InputKind::ObjC) 1361 .Cases("objective-c++", "objective-c++-header", 1362 "objective-c++-cpp-output", "objc++-cpp-output", 1363 InputKind::ObjCXX) 1364 .Case("renderscript", InputKind::RenderScript) 1365 .Case("assembler-with-cpp", InputKind::Asm) 1366 .Cases("ast", "pcm", 1367 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1368 .Case("ir", InputKind::LLVM_IR) 1369 .Default(InputKind::Unknown); 1370 if (DashX.isUnknown()) 1371 Diags.Report(diag::err_drv_invalid_value) 1372 << A->getAsString(Args) << A->getValue(); 1373 1374 if (XValue.endswith("cpp-output")) 1375 DashX = DashX.getPreprocessed(); 1376 IsHeaderFile = XValue.endswith("-header"); 1377 } 1378 1379 // '-' is the default input if none is given. 1380 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1381 Opts.Inputs.clear(); 1382 if (Inputs.empty()) 1383 Inputs.push_back("-"); 1384 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1385 InputKind IK = DashX; 1386 if (IK.isUnknown()) { 1387 IK = FrontendOptions::getInputKindForExtension( 1388 StringRef(Inputs[i]).rsplit('.').second); 1389 // FIXME: Warn on this? 1390 if (IK.isUnknown()) 1391 IK = InputKind::C; 1392 // FIXME: Remove this hack. 1393 if (i == 0) 1394 DashX = IK; 1395 } 1396 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1397 } 1398 1399 return DashX; 1400 } 1401 1402 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1403 void *MainAddr) { 1404 std::string ClangExecutable = 1405 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1406 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1407 1408 // Compute the path to the resource directory. 1409 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1410 SmallString<128> P(Dir); 1411 if (ClangResourceDir != "") 1412 llvm::sys::path::append(P, ClangResourceDir); 1413 else 1414 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1415 "clang", CLANG_VERSION_STRING); 1416 1417 return P.str(); 1418 } 1419 1420 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1421 const std::string &WorkingDir) { 1422 using namespace options; 1423 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1424 Opts.Verbose = Args.hasArg(OPT_v); 1425 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1426 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1427 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1428 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1429 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1430 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1431 1432 // Canonicalize -fmodules-cache-path before storing it. 1433 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1434 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1435 if (WorkingDir.empty()) 1436 llvm::sys::fs::make_absolute(P); 1437 else 1438 llvm::sys::fs::make_absolute(WorkingDir, P); 1439 } 1440 llvm::sys::path::remove_dots(P); 1441 Opts.ModuleCachePath = P.str(); 1442 1443 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1444 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1445 Opts.AddPrebuiltModulePath(A->getValue()); 1446 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1447 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1448 Opts.ModulesValidateDiagnosticOptions = 1449 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1450 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1451 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1452 Opts.ModuleCachePruneInterval = 1453 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1454 Opts.ModuleCachePruneAfter = 1455 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1456 Opts.ModulesValidateOncePerBuildSession = 1457 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1458 Opts.BuildSessionTimestamp = 1459 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1460 Opts.ModulesValidateSystemHeaders = 1461 Args.hasArg(OPT_fmodules_validate_system_headers); 1462 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1463 Opts.ModuleFormat = A->getValue(); 1464 1465 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1466 StringRef MacroDef = A->getValue(); 1467 Opts.ModulesIgnoreMacros.insert( 1468 llvm::CachedHashString(MacroDef.split('=').first)); 1469 } 1470 1471 // Add -I..., -F..., and -index-header-map options in order. 1472 bool IsIndexHeaderMap = false; 1473 bool IsSysrootSpecified = 1474 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1475 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1476 if (A->getOption().matches(OPT_index_header_map)) { 1477 // -index-header-map applies to the next -I or -F. 1478 IsIndexHeaderMap = true; 1479 continue; 1480 } 1481 1482 frontend::IncludeDirGroup Group = 1483 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1484 1485 bool IsFramework = A->getOption().matches(OPT_F); 1486 std::string Path = A->getValue(); 1487 1488 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1489 SmallString<32> Buffer; 1490 llvm::sys::path::append(Buffer, Opts.Sysroot, 1491 llvm::StringRef(A->getValue()).substr(1)); 1492 Path = Buffer.str(); 1493 } 1494 1495 Opts.AddPath(Path, Group, IsFramework, 1496 /*IgnoreSysroot*/ true); 1497 IsIndexHeaderMap = false; 1498 } 1499 1500 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1501 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1502 for (const Arg *A : 1503 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1504 if (A->getOption().matches(OPT_iprefix)) 1505 Prefix = A->getValue(); 1506 else if (A->getOption().matches(OPT_iwithprefix)) 1507 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1508 else 1509 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1510 } 1511 1512 for (const Arg *A : Args.filtered(OPT_idirafter)) 1513 Opts.AddPath(A->getValue(), frontend::After, false, true); 1514 for (const Arg *A : Args.filtered(OPT_iquote)) 1515 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1516 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1517 Opts.AddPath(A->getValue(), frontend::System, false, 1518 !A->getOption().matches(OPT_iwithsysroot)); 1519 for (const Arg *A : Args.filtered(OPT_iframework)) 1520 Opts.AddPath(A->getValue(), frontend::System, true, true); 1521 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot)) 1522 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1523 /*IgnoreSysRoot=*/false); 1524 1525 // Add the paths for the various language specific isystem flags. 1526 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1527 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1528 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1529 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1530 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1531 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1532 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1533 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1534 1535 // Add the internal paths from a driver that detects standard include paths. 1536 for (const Arg *A : 1537 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1538 frontend::IncludeDirGroup Group = frontend::System; 1539 if (A->getOption().matches(OPT_internal_externc_isystem)) 1540 Group = frontend::ExternCSystem; 1541 Opts.AddPath(A->getValue(), Group, false, true); 1542 } 1543 1544 // Add the path prefixes which are implicitly treated as being system headers. 1545 for (const Arg *A : 1546 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1547 Opts.AddSystemHeaderPrefix( 1548 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1549 1550 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1551 Opts.AddVFSOverlayFile(A->getValue()); 1552 } 1553 1554 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1555 const llvm::Triple &T, 1556 PreprocessorOptions &PPOpts, 1557 LangStandard::Kind LangStd) { 1558 // Set some properties which depend solely on the input kind; it would be nice 1559 // to move these to the language standard, and have the driver resolve the 1560 // input kind + language standard. 1561 // 1562 // FIXME: Perhaps a better model would be for a single source file to have 1563 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 1564 // simultaneously active? 1565 if (IK.getLanguage() == InputKind::Asm) { 1566 Opts.AsmPreprocessor = 1; 1567 } else if (IK.isObjectiveC()) { 1568 Opts.ObjC1 = Opts.ObjC2 = 1; 1569 } 1570 1571 if (LangStd == LangStandard::lang_unspecified) { 1572 // Based on the base language, pick one. 1573 switch (IK.getLanguage()) { 1574 case InputKind::Unknown: 1575 case InputKind::LLVM_IR: 1576 llvm_unreachable("Invalid input kind!"); 1577 case InputKind::OpenCL: 1578 LangStd = LangStandard::lang_opencl; 1579 break; 1580 case InputKind::CUDA: 1581 LangStd = LangStandard::lang_cuda; 1582 break; 1583 case InputKind::Asm: 1584 case InputKind::C: 1585 // The PS4 uses C99 as the default C standard. 1586 if (T.isPS4()) 1587 LangStd = LangStandard::lang_gnu99; 1588 else 1589 LangStd = LangStandard::lang_gnu11; 1590 break; 1591 case InputKind::ObjC: 1592 LangStd = LangStandard::lang_gnu11; 1593 break; 1594 case InputKind::CXX: 1595 case InputKind::ObjCXX: 1596 // The PS4 uses C++11 as the default C++ standard. 1597 if (T.isPS4()) 1598 LangStd = LangStandard::lang_gnucxx11; 1599 else 1600 LangStd = LangStandard::lang_gnucxx98; 1601 break; 1602 case InputKind::RenderScript: 1603 LangStd = LangStandard::lang_c99; 1604 break; 1605 } 1606 } 1607 1608 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1609 Opts.LineComment = Std.hasLineComments(); 1610 Opts.C99 = Std.isC99(); 1611 Opts.C11 = Std.isC11(); 1612 Opts.CPlusPlus = Std.isCPlusPlus(); 1613 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1614 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1615 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1616 Opts.Digraphs = Std.hasDigraphs(); 1617 Opts.GNUMode = Std.isGNUMode(); 1618 Opts.GNUInline = Std.isC89(); 1619 Opts.HexFloats = Std.hasHexFloats(); 1620 Opts.ImplicitInt = Std.hasImplicitInt(); 1621 1622 // Set OpenCL Version. 1623 Opts.OpenCL = Std.isOpenCL() || IK.getLanguage() == InputKind::OpenCL; 1624 if (LangStd == LangStandard::lang_opencl) 1625 Opts.OpenCLVersion = 100; 1626 else if (LangStd == LangStandard::lang_opencl11) 1627 Opts.OpenCLVersion = 110; 1628 else if (LangStd == LangStandard::lang_opencl12) 1629 Opts.OpenCLVersion = 120; 1630 else if (LangStd == LangStandard::lang_opencl20) 1631 Opts.OpenCLVersion = 200; 1632 1633 // OpenCL has some additional defaults. 1634 if (Opts.OpenCL) { 1635 Opts.AltiVec = 0; 1636 Opts.ZVector = 0; 1637 Opts.LaxVectorConversions = 0; 1638 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 1639 Opts.NativeHalfType = 1; 1640 Opts.NativeHalfArgsAndReturns = 1; 1641 // Include default header file for OpenCL. 1642 if (Opts.IncludeDefaultHeader) { 1643 PPOpts.Includes.push_back("opencl-c.h"); 1644 } 1645 } 1646 1647 Opts.CUDA = IK.getLanguage() == InputKind::CUDA || 1648 LangStd == LangStandard::lang_cuda; 1649 if (Opts.CUDA) 1650 // Set default FP_CONTRACT to FAST. 1651 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 1652 1653 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 1654 if (Opts.RenderScript) { 1655 Opts.NativeHalfType = 1; 1656 Opts.NativeHalfArgsAndReturns = 1; 1657 } 1658 1659 // OpenCL and C++ both have bool, true, false keywords. 1660 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1661 1662 // OpenCL has half keyword 1663 Opts.Half = Opts.OpenCL; 1664 1665 // C++ has wchar_t keyword. 1666 Opts.WChar = Opts.CPlusPlus; 1667 1668 Opts.GNUKeywords = Opts.GNUMode; 1669 Opts.CXXOperatorNames = Opts.CPlusPlus; 1670 1671 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1672 1673 Opts.DollarIdents = !Opts.AsmPreprocessor; 1674 } 1675 1676 /// Attempt to parse a visibility value out of the given argument. 1677 static Visibility parseVisibility(Arg *arg, ArgList &args, 1678 DiagnosticsEngine &diags) { 1679 StringRef value = arg->getValue(); 1680 if (value == "default") { 1681 return DefaultVisibility; 1682 } else if (value == "hidden" || value == "internal") { 1683 return HiddenVisibility; 1684 } else if (value == "protected") { 1685 // FIXME: diagnose if target does not support protected visibility 1686 return ProtectedVisibility; 1687 } 1688 1689 diags.Report(diag::err_drv_invalid_value) 1690 << arg->getAsString(args) << value; 1691 return DefaultVisibility; 1692 } 1693 1694 /// Check if input file kind and language standard are compatible. 1695 static bool IsInputCompatibleWithStandard(InputKind IK, 1696 const LangStandard &S) { 1697 switch (IK.getLanguage()) { 1698 case InputKind::Unknown: 1699 case InputKind::LLVM_IR: 1700 llvm_unreachable("should not parse language flags for this input"); 1701 1702 case InputKind::C: 1703 case InputKind::ObjC: 1704 // FIXME: Should this really allow OpenCL standards? 1705 return S.isC89() || S.isC99(); 1706 1707 case InputKind::OpenCL: 1708 return S.isOpenCL(); 1709 1710 case InputKind::RenderScript: 1711 // FIXME: Should this really allow -std=c++98 etc? 1712 return true; 1713 1714 case InputKind::CXX: 1715 case InputKind::ObjCXX: 1716 // FIXME: Should this really allow -std=cuda? 1717 return S.isCPlusPlus(); 1718 1719 case InputKind::CUDA: 1720 return S.isCPlusPlus(); 1721 1722 case InputKind::Asm: 1723 // Accept (and ignore) all -std= values. 1724 // FIXME: The -std= value is not ignored; it affects the tokenization 1725 // and preprocessing rules if we're preprocessing this asm input. 1726 return true; 1727 } 1728 1729 llvm_unreachable("unexpected input language"); 1730 } 1731 1732 /// Get language name for given input kind. 1733 static const StringRef GetInputKindName(InputKind IK) { 1734 switch (IK.getLanguage()) { 1735 case InputKind::C: 1736 case InputKind::ObjC: 1737 // FIXME: Don't lump these together. 1738 return "C/ObjC"; 1739 case InputKind::CXX: 1740 case InputKind::ObjCXX: 1741 // FIXME: Don't lump these together. 1742 return "C++/ObjC++"; 1743 case InputKind::OpenCL: 1744 return "OpenCL"; 1745 case InputKind::CUDA: 1746 return "CUDA"; 1747 // FIXME: Include names for other options, and make this switch exhaustive. 1748 default: 1749 llvm_unreachable("Cannot decide on name for InputKind!"); 1750 } 1751 } 1752 1753 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1754 const TargetOptions &TargetOpts, 1755 PreprocessorOptions &PPOpts, 1756 DiagnosticsEngine &Diags) { 1757 // FIXME: Cleanup per-file based stuff. 1758 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1759 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1760 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1761 #define LANGSTANDARD(id, name, desc, features) \ 1762 .Case(name, LangStandard::lang_##id) 1763 #define LANGSTANDARD_ALIAS(id, alias) \ 1764 .Case(alias, LangStandard::lang_##id) 1765 #include "clang/Frontend/LangStandards.def" 1766 .Default(LangStandard::lang_unspecified); 1767 if (LangStd == LangStandard::lang_unspecified) { 1768 Diags.Report(diag::err_drv_invalid_value) 1769 << A->getAsString(Args) << A->getValue(); 1770 // Report supported standards with short description. 1771 for (unsigned KindValue = 0; 1772 KindValue != LangStandard::lang_unspecified; 1773 ++KindValue) { 1774 const LangStandard &Std = LangStandard::getLangStandardForKind( 1775 static_cast<LangStandard::Kind>(KindValue)); 1776 if (IsInputCompatibleWithStandard(IK, Std)) { 1777 Diags.Report(diag::note_drv_use_standard) 1778 << Std.getName() << Std.getDescription(); 1779 } 1780 } 1781 } else { 1782 // Valid standard, check to make sure language and standard are 1783 // compatible. 1784 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1785 if (!IsInputCompatibleWithStandard(IK, Std)) { 1786 Diags.Report(diag::err_drv_argument_not_allowed_with) 1787 << A->getAsString(Args) << GetInputKindName(IK); 1788 } 1789 } 1790 } 1791 1792 // -cl-std only applies for OpenCL language standards. 1793 // Override the -std option in this case. 1794 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1795 LangStandard::Kind OpenCLLangStd 1796 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1797 .Cases("cl", "CL", LangStandard::lang_opencl) 1798 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1799 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1800 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1801 .Default(LangStandard::lang_unspecified); 1802 1803 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1804 Diags.Report(diag::err_drv_invalid_value) 1805 << A->getAsString(Args) << A->getValue(); 1806 } 1807 else 1808 LangStd = OpenCLLangStd; 1809 } 1810 1811 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1812 1813 llvm::Triple T(TargetOpts.Triple); 1814 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1815 1816 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1817 // This option should be deprecated for CL > 1.0 because 1818 // this option was added for compatibility with OpenCL 1.0. 1819 if (Args.getLastArg(OPT_cl_strict_aliasing) 1820 && Opts.OpenCLVersion > 100) { 1821 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1822 std::string(".") + 1823 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1824 Diags.Report(diag::warn_option_invalid_ocl_version) 1825 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1826 } 1827 1828 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1829 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1830 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1831 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1832 // name, as it doesn't seem a useful distinction. 1833 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1834 Opts.GNUKeywords); 1835 1836 if (Args.hasArg(OPT_fno_operator_names)) 1837 Opts.CXXOperatorNames = 0; 1838 1839 if (Args.hasArg(OPT_fcuda_is_device)) 1840 Opts.CUDAIsDevice = 1; 1841 1842 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1843 Opts.CUDAAllowVariadicFunctions = 1; 1844 1845 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1846 Opts.CUDAHostDeviceConstexpr = 0; 1847 1848 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1849 Opts.CUDADeviceFlushDenormalsToZero = 1; 1850 1851 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1852 Opts.CUDADeviceApproxTranscendentals = 1; 1853 1854 if (Opts.ObjC1) { 1855 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1856 StringRef value = arg->getValue(); 1857 if (Opts.ObjCRuntime.tryParse(value)) 1858 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1859 } 1860 1861 if (Args.hasArg(OPT_fobjc_gc_only)) 1862 Opts.setGC(LangOptions::GCOnly); 1863 else if (Args.hasArg(OPT_fobjc_gc)) 1864 Opts.setGC(LangOptions::HybridGC); 1865 else if (Args.hasArg(OPT_fobjc_arc)) { 1866 Opts.ObjCAutoRefCount = 1; 1867 if (!Opts.ObjCRuntime.allowsARC()) 1868 Diags.Report(diag::err_arc_unsupported_on_runtime); 1869 } 1870 1871 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 1872 // whether the feature is actually enabled. This is predominantly 1873 // determined by -fobjc-runtime, but we allow it to be overridden 1874 // from the command line for testing purposes. 1875 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1876 Opts.ObjCWeakRuntime = 1; 1877 else 1878 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 1879 1880 // ObjCWeak determines whether __weak is actually enabled. 1881 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 1882 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 1883 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 1884 assert(!Opts.ObjCWeak); 1885 } else if (Opts.getGC() != LangOptions::NonGC) { 1886 Diags.Report(diag::err_objc_weak_with_gc); 1887 } else if (!Opts.ObjCWeakRuntime) { 1888 Diags.Report(diag::err_objc_weak_unsupported); 1889 } else { 1890 Opts.ObjCWeak = 1; 1891 } 1892 } else if (Opts.ObjCAutoRefCount) { 1893 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 1894 } 1895 1896 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1897 Opts.ObjCInferRelatedResultType = 0; 1898 1899 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1900 Opts.ObjCSubscriptingLegacyRuntime = 1901 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1902 } 1903 1904 if (Args.hasArg(OPT_fgnu89_inline)) { 1905 if (Opts.CPlusPlus) 1906 Diags.Report(diag::err_drv_argument_not_allowed_with) 1907 << "-fgnu89-inline" << GetInputKindName(IK); 1908 else 1909 Opts.GNUInline = 1; 1910 } 1911 1912 if (Args.hasArg(OPT_fapple_kext)) { 1913 if (!Opts.CPlusPlus) 1914 Diags.Report(diag::warn_c_kext); 1915 else 1916 Opts.AppleKext = 1; 1917 } 1918 1919 if (Args.hasArg(OPT_print_ivar_layout)) 1920 Opts.ObjCGCBitmapPrint = 1; 1921 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1922 Opts.NoConstantCFStrings = 1; 1923 1924 if (Args.hasArg(OPT_fzvector)) 1925 Opts.ZVector = 1; 1926 1927 if (Args.hasArg(OPT_pthread)) 1928 Opts.POSIXThreads = 1; 1929 1930 // The value-visibility mode defaults to "default". 1931 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1932 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1933 } else { 1934 Opts.setValueVisibilityMode(DefaultVisibility); 1935 } 1936 1937 // The type-visibility mode defaults to the value-visibility mode. 1938 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1939 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1940 } else { 1941 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1942 } 1943 1944 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1945 Opts.InlineVisibilityHidden = 1; 1946 1947 if (Args.hasArg(OPT_ftrapv)) { 1948 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1949 // Set the handler, if one is specified. 1950 Opts.OverflowHandler = 1951 Args.getLastArgValue(OPT_ftrapv_handler); 1952 } 1953 else if (Args.hasArg(OPT_fwrapv)) 1954 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1955 1956 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1957 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1958 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1959 Opts.MSCompatibilityVersion = 0; 1960 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1961 VersionTuple VT; 1962 if (VT.tryParse(A->getValue())) 1963 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1964 << A->getValue(); 1965 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1966 VT.getMinor().getValueOr(0) * 100000 + 1967 VT.getSubminor().getValueOr(0); 1968 } 1969 1970 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1971 // is specified, or -std is set to a conforming mode. 1972 // Trigraphs are disabled by default in c++1z onwards. 1973 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1974 Opts.Trigraphs = 1975 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1976 1977 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1978 OPT_fno_dollars_in_identifiers, 1979 Opts.DollarIdents); 1980 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1981 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1982 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1983 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1984 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1985 Opts.ConstStrings); 1986 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1987 Opts.LaxVectorConversions = 0; 1988 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1989 Opts.ThreadsafeStatics = 0; 1990 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1991 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1992 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1993 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1994 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 1995 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1996 1997 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 1998 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1999 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2000 && Opts.OpenCLVersion >= 200); 2001 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2002 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2003 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2004 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2005 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2006 Opts.ModulesDeclUse = 2007 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2008 Opts.ModulesLocalVisibility = 2009 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2010 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2011 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2012 Opts.ModulesSearchAll = Opts.Modules && 2013 !Args.hasArg(OPT_fno_modules_search_all) && 2014 Args.hasArg(OPT_fmodules_search_all); 2015 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2016 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2017 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2018 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2019 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 2020 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2021 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2022 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2023 if (!Opts.NoBuiltin) 2024 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2025 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2026 Opts.RelaxedTemplateTemplateArgs = 2027 Args.hasArg(OPT_frelaxed_template_template_args); 2028 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2029 Opts.AlignedAllocation = 2030 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2031 Opts.AlignedAllocation); 2032 Opts.NewAlignOverride = 2033 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2034 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2035 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2036 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2037 << A->getValue(); 2038 Opts.NewAlignOverride = 0; 2039 } 2040 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2041 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2042 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2043 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2044 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2045 Opts.InstantiationDepth = 2046 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2047 Opts.ArrowDepth = 2048 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2049 Opts.ConstexprCallDepth = 2050 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2051 Opts.ConstexprStepLimit = 2052 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2053 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2054 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2055 Opts.NumLargeByValueCopy = 2056 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2057 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2058 Opts.ObjCConstantStringClass = 2059 Args.getLastArgValue(OPT_fconstant_string_class); 2060 Opts.ObjCDefaultSynthProperties = 2061 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2062 Opts.EncodeExtendedBlockSig = 2063 Args.hasArg(OPT_fencode_extended_block_signature); 2064 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2065 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2066 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2067 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2068 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2069 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2070 Opts.Static = Args.hasArg(OPT_static_define); 2071 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2072 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2073 || Args.hasArg(OPT_fdump_record_layouts); 2074 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2075 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2076 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2077 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2078 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2079 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2080 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2081 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2082 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2083 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2084 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2085 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2086 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2087 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2088 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2089 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2090 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2091 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2092 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2093 // is enabled. 2094 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2095 | Opts.NativeHalfArgsAndReturns; 2096 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2097 2098 // __declspec is enabled by default for the PS4 by the driver, and also 2099 // enabled for Microsoft Extensions or Borland Extensions, here. 2100 // 2101 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2102 // CUDA extension. However, it is required for supporting 2103 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2104 // been rewritten in terms of something more generic, remove the Opts.CUDA 2105 // term here. 2106 Opts.DeclSpecKeyword = 2107 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2108 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2109 2110 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2111 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2112 .Case("target", LangOptions::ASMM_Target) 2113 .Case("no", LangOptions::ASMM_Off) 2114 .Case("yes", LangOptions::ASMM_On) 2115 .Default(255)) { 2116 default: 2117 Diags.Report(diag::err_drv_invalid_value) 2118 << "-faddress-space-map-mangling=" << A->getValue(); 2119 break; 2120 case LangOptions::ASMM_Target: 2121 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2122 break; 2123 case LangOptions::ASMM_On: 2124 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2125 break; 2126 case LangOptions::ASMM_Off: 2127 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2128 break; 2129 } 2130 } 2131 2132 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2133 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2134 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2135 A->getValue()) 2136 .Case("single", 2137 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2138 .Case("multiple", 2139 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2140 .Case("virtual", 2141 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2142 .Default(LangOptions::PPTMK_BestCase); 2143 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2144 Diags.Report(diag::err_drv_invalid_value) 2145 << "-fms-memptr-rep=" << A->getValue(); 2146 2147 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2148 } 2149 2150 // Check for MS default calling conventions being specified. 2151 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2152 LangOptions::DefaultCallingConvention DefaultCC = 2153 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2154 A->getValue()) 2155 .Case("cdecl", LangOptions::DCC_CDecl) 2156 .Case("fastcall", LangOptions::DCC_FastCall) 2157 .Case("stdcall", LangOptions::DCC_StdCall) 2158 .Case("vectorcall", LangOptions::DCC_VectorCall) 2159 .Default(LangOptions::DCC_None); 2160 if (DefaultCC == LangOptions::DCC_None) 2161 Diags.Report(diag::err_drv_invalid_value) 2162 << "-fdefault-calling-conv=" << A->getValue(); 2163 2164 llvm::Triple T(TargetOpts.Triple); 2165 llvm::Triple::ArchType Arch = T.getArch(); 2166 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2167 DefaultCC == LangOptions::DCC_StdCall) && 2168 Arch != llvm::Triple::x86; 2169 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2170 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2171 if (emitError) 2172 Diags.Report(diag::err_drv_argument_not_allowed_with) 2173 << A->getSpelling() << T.getTriple(); 2174 else 2175 Opts.setDefaultCallingConv(DefaultCC); 2176 } 2177 2178 // -mrtd option 2179 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2180 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2181 Diags.Report(diag::err_drv_argument_not_allowed_with) 2182 << A->getSpelling() << "-fdefault-calling-conv"; 2183 else { 2184 llvm::Triple T(TargetOpts.Triple); 2185 if (T.getArch() != llvm::Triple::x86) 2186 Diags.Report(diag::err_drv_argument_not_allowed_with) 2187 << A->getSpelling() << T.getTriple(); 2188 else 2189 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2190 } 2191 } 2192 2193 // Check if -fopenmp is specified. 2194 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2195 Opts.OpenMPUseTLS = 2196 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2197 Opts.OpenMPIsDevice = 2198 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2199 2200 if (Opts.OpenMP) { 2201 int Version = 2202 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2203 if (Version != 0) 2204 Opts.OpenMP = Version; 2205 // Provide diagnostic when a given target is not expected to be an OpenMP 2206 // device or host. 2207 if (!Opts.OpenMPIsDevice) { 2208 switch (T.getArch()) { 2209 default: 2210 break; 2211 // Add unsupported host targets here: 2212 case llvm::Triple::nvptx: 2213 case llvm::Triple::nvptx64: 2214 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2215 << TargetOpts.Triple; 2216 break; 2217 } 2218 } 2219 } 2220 2221 // Get the OpenMP target triples if any. 2222 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2223 2224 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2225 llvm::Triple TT(A->getValue(i)); 2226 2227 if (TT.getArch() == llvm::Triple::UnknownArch) 2228 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2229 else 2230 Opts.OMPTargetTriples.push_back(TT); 2231 } 2232 } 2233 2234 // Get OpenMP host file path if any and report if a non existent file is 2235 // found 2236 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2237 Opts.OMPHostIRFile = A->getValue(); 2238 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2239 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2240 << Opts.OMPHostIRFile; 2241 } 2242 2243 // Record whether the __DEPRECATED define was requested. 2244 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2245 OPT_fno_deprecated_macro, 2246 Opts.Deprecated); 2247 2248 // FIXME: Eliminate this dependency. 2249 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2250 OptSize = getOptimizationLevelSize(Args); 2251 Opts.Optimize = Opt != 0; 2252 Opts.OptimizeSize = OptSize != 0; 2253 2254 // This is the __NO_INLINE__ define, which just depends on things like the 2255 // optimization level and -fno-inline, not actually whether the backend has 2256 // inlining enabled. 2257 Opts.NoInlineDefine = !Opts.Optimize; 2258 if (Arg *InlineArg = Args.getLastArg( 2259 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2260 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2261 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2262 Opts.NoInlineDefine = true; 2263 2264 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2265 Args.hasArg(OPT_cl_fast_relaxed_math); 2266 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2267 Args.hasArg(OPT_cl_finite_math_only) || 2268 Args.hasArg(OPT_cl_fast_relaxed_math); 2269 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2270 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2271 Args.hasArg(OPT_cl_fast_relaxed_math); 2272 2273 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2274 StringRef Val = A->getValue(); 2275 if (Val == "fast") 2276 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2277 else if (Val == "on") 2278 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2279 else if (Val == "off") 2280 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2281 else 2282 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2283 } 2284 2285 Opts.RetainCommentsFromSystemHeaders = 2286 Args.hasArg(OPT_fretain_comments_from_system_headers); 2287 2288 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2289 switch (SSP) { 2290 default: 2291 Diags.Report(diag::err_drv_invalid_value) 2292 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2293 break; 2294 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2295 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2296 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2297 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2298 } 2299 2300 // Parse -fsanitize= arguments. 2301 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2302 Diags, Opts.Sanitize); 2303 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2304 Opts.SanitizeAddressFieldPadding = 2305 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2306 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2307 2308 // -fxray-instrument 2309 Opts.XRayInstrument = 2310 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2311 2312 // -fxray-{always,never}-instrument= filenames. 2313 Opts.XRayAlwaysInstrumentFiles = 2314 Args.getAllArgValues(OPT_fxray_always_instrument); 2315 Opts.XRayNeverInstrumentFiles = 2316 Args.getAllArgValues(OPT_fxray_never_instrument); 2317 2318 // -fallow-editor-placeholders 2319 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2320 } 2321 2322 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2323 FileManager &FileMgr, 2324 DiagnosticsEngine &Diags) { 2325 using namespace options; 2326 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2327 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2328 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2329 Opts.TokenCache = A->getValue(); 2330 else 2331 Opts.TokenCache = Opts.ImplicitPTHInclude; 2332 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2333 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2334 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2335 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 2336 2337 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2338 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2339 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2340 2341 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2342 StringRef Value(A->getValue()); 2343 size_t Comma = Value.find(','); 2344 unsigned Bytes = 0; 2345 unsigned EndOfLine = 0; 2346 2347 if (Comma == StringRef::npos || 2348 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2349 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2350 Diags.Report(diag::err_drv_preamble_format); 2351 else { 2352 Opts.PrecompiledPreambleBytes.first = Bytes; 2353 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2354 } 2355 } 2356 2357 // Add macros from the command line. 2358 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2359 if (A->getOption().matches(OPT_D)) 2360 Opts.addMacroDef(A->getValue()); 2361 else 2362 Opts.addMacroUndef(A->getValue()); 2363 } 2364 2365 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2366 2367 // Add the ordered list of -includes. 2368 for (const Arg *A : Args.filtered(OPT_include)) 2369 Opts.Includes.emplace_back(A->getValue()); 2370 2371 for (const Arg *A : Args.filtered(OPT_chain_include)) 2372 Opts.ChainedIncludes.emplace_back(A->getValue()); 2373 2374 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2375 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2376 2377 if (Split.second.empty()) { 2378 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2379 continue; 2380 } 2381 2382 Opts.addRemappedFile(Split.first, Split.second); 2383 } 2384 2385 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2386 StringRef Name = A->getValue(); 2387 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2388 .Case("libc++", ARCXX_libcxx) 2389 .Case("libstdc++", ARCXX_libstdcxx) 2390 .Case("none", ARCXX_nolib) 2391 .Default(~0U); 2392 if (Library == ~0U) 2393 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2394 else 2395 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2396 } 2397 } 2398 2399 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2400 ArgList &Args, 2401 frontend::ActionKind Action) { 2402 using namespace options; 2403 2404 switch (Action) { 2405 case frontend::ASTDeclList: 2406 case frontend::ASTDump: 2407 case frontend::ASTPrint: 2408 case frontend::ASTView: 2409 case frontend::EmitAssembly: 2410 case frontend::EmitBC: 2411 case frontend::EmitHTML: 2412 case frontend::EmitLLVM: 2413 case frontend::EmitLLVMOnly: 2414 case frontend::EmitCodeGenOnly: 2415 case frontend::EmitObj: 2416 case frontend::FixIt: 2417 case frontend::GenerateModule: 2418 case frontend::GenerateModuleInterface: 2419 case frontend::GeneratePCH: 2420 case frontend::GeneratePTH: 2421 case frontend::ParseSyntaxOnly: 2422 case frontend::ModuleFileInfo: 2423 case frontend::VerifyPCH: 2424 case frontend::PluginAction: 2425 case frontend::PrintDeclContext: 2426 case frontend::RewriteObjC: 2427 case frontend::RewriteTest: 2428 case frontend::RunAnalysis: 2429 case frontend::MigrateSource: 2430 Opts.ShowCPP = 0; 2431 break; 2432 2433 case frontend::DumpRawTokens: 2434 case frontend::DumpTokens: 2435 case frontend::InitOnly: 2436 case frontend::PrintPreamble: 2437 case frontend::PrintPreprocessedInput: 2438 case frontend::RewriteMacros: 2439 case frontend::RunPreprocessorOnly: 2440 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2441 break; 2442 } 2443 2444 Opts.ShowComments = Args.hasArg(OPT_C); 2445 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2446 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2447 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2448 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2449 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2450 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2451 } 2452 2453 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2454 DiagnosticsEngine &Diags) { 2455 using namespace options; 2456 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2457 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2458 StringRef Value = A->getValue(); 2459 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2460 .Case("default", llvm::EABI::Default) 2461 .Case("4", llvm::EABI::EABI4) 2462 .Case("5", llvm::EABI::EABI5) 2463 .Case("gnu", llvm::EABI::GNU) 2464 .Default(llvm::EABI::Unknown); 2465 if (EABIVersion == llvm::EABI::Unknown) 2466 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2467 << Value; 2468 else 2469 Opts.EABIVersion = Value; 2470 } 2471 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2472 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2473 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2474 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2475 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2476 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2477 // Use the default target triple if unspecified. 2478 if (Opts.Triple.empty()) 2479 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2480 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2481 } 2482 2483 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2484 const char *const *ArgBegin, 2485 const char *const *ArgEnd, 2486 DiagnosticsEngine &Diags) { 2487 bool Success = true; 2488 2489 // Parse the arguments. 2490 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2491 const unsigned IncludedFlagsBitmask = options::CC1Option; 2492 unsigned MissingArgIndex, MissingArgCount; 2493 InputArgList Args = 2494 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2495 MissingArgCount, IncludedFlagsBitmask); 2496 LangOptions &LangOpts = *Res.getLangOpts(); 2497 2498 // Check for missing argument error. 2499 if (MissingArgCount) { 2500 Diags.Report(diag::err_drv_missing_argument) 2501 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2502 Success = false; 2503 } 2504 2505 // Issue errors on unknown arguments. 2506 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2507 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2508 Success = false; 2509 } 2510 2511 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2512 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2513 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2514 Success &= 2515 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2516 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2517 ParseCommentArgs(LangOpts.CommentOpts, Args); 2518 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2519 // FIXME: We shouldn't have to pass the DashX option around here 2520 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2521 LangOpts.IsHeaderFile); 2522 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2523 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2524 Res.getTargetOpts()); 2525 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2526 Res.getFileSystemOpts().WorkingDir); 2527 if (DashX.getFormat() == InputKind::Precompiled || 2528 DashX.getLanguage() == InputKind::LLVM_IR) { 2529 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2530 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2531 // what the input type is. 2532 if (Args.hasArg(OPT_fobjc_arc)) 2533 LangOpts.ObjCAutoRefCount = 1; 2534 // PIClevel and PIELevel are needed during code generation and this should be 2535 // set regardless of the input type. 2536 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2537 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2538 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2539 Diags, LangOpts.Sanitize); 2540 } else { 2541 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2542 // FIXME: Should we really be calling this for an InputKind::Asm input? 2543 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2544 Res.getPreprocessorOpts(), Diags); 2545 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2546 LangOpts.ObjCExceptions = 1; 2547 } 2548 2549 if (LangOpts.CUDA) { 2550 // During CUDA device-side compilation, the aux triple is the 2551 // triple used for host compilation. 2552 if (LangOpts.CUDAIsDevice) 2553 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2554 } 2555 2556 // FIXME: Override value name discarding when asan or msan is used because the 2557 // backend passes depend on the name of the alloca in order to print out 2558 // names. 2559 Res.getCodeGenOpts().DiscardValueNames &= 2560 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2561 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2562 2563 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2564 // PCH file and find the original header name. Remove the need to do that in 2565 // ParsePreprocessorArgs and remove the FileManager 2566 // parameters from the function and the "FileManager.h" #include. 2567 FileManager FileMgr(Res.getFileSystemOpts()); 2568 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags); 2569 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2570 Res.getFrontendOpts().ProgramAction); 2571 2572 // Turn on -Wspir-compat for SPIR target. 2573 llvm::Triple T(Res.getTargetOpts().Triple); 2574 auto Arch = T.getArch(); 2575 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2576 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2577 } 2578 return Success; 2579 } 2580 2581 std::string CompilerInvocation::getModuleHash() const { 2582 // Note: For QoI reasons, the things we use as a hash here should all be 2583 // dumped via the -module-info flag. 2584 using llvm::hash_code; 2585 using llvm::hash_value; 2586 using llvm::hash_combine; 2587 2588 // Start the signature with the compiler version. 2589 // FIXME: We'd rather use something more cryptographically sound than 2590 // CityHash, but this will do for now. 2591 hash_code code = hash_value(getClangFullRepositoryVersion()); 2592 2593 // Extend the signature with the language options 2594 #define LANGOPT(Name, Bits, Default, Description) \ 2595 code = hash_combine(code, LangOpts->Name); 2596 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2597 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2598 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2599 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2600 #include "clang/Basic/LangOptions.def" 2601 2602 for (StringRef Feature : LangOpts->ModuleFeatures) 2603 code = hash_combine(code, Feature); 2604 2605 // Extend the signature with the target options. 2606 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2607 TargetOpts->ABI); 2608 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2609 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2610 2611 // Extend the signature with preprocessor options. 2612 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2613 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2614 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2615 2616 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2617 I = getPreprocessorOpts().Macros.begin(), 2618 IEnd = getPreprocessorOpts().Macros.end(); 2619 I != IEnd; ++I) { 2620 // If we're supposed to ignore this macro for the purposes of modules, 2621 // don't put it into the hash. 2622 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2623 // Check whether we're ignoring this macro. 2624 StringRef MacroDef = I->first; 2625 if (hsOpts.ModulesIgnoreMacros.count( 2626 llvm::CachedHashString(MacroDef.split('=').first))) 2627 continue; 2628 } 2629 2630 code = hash_combine(code, I->first, I->second); 2631 } 2632 2633 // Extend the signature with the sysroot and other header search options. 2634 code = hash_combine(code, hsOpts.Sysroot, 2635 hsOpts.ModuleFormat, 2636 hsOpts.UseDebugInfo, 2637 hsOpts.UseBuiltinIncludes, 2638 hsOpts.UseStandardSystemIncludes, 2639 hsOpts.UseStandardCXXIncludes, 2640 hsOpts.UseLibcxx, 2641 hsOpts.ModulesValidateDiagnosticOptions); 2642 code = hash_combine(code, hsOpts.ResourceDir); 2643 2644 // Extend the signature with the user build path. 2645 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2646 2647 // Extend the signature with the module file extensions. 2648 const FrontendOptions &frontendOpts = getFrontendOpts(); 2649 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2650 code = ext->hashExtension(code); 2651 } 2652 2653 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2654 } 2655 2656 namespace clang { 2657 2658 template<typename IntTy> 2659 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2660 IntTy Default, 2661 DiagnosticsEngine *Diags) { 2662 IntTy Res = Default; 2663 if (Arg *A = Args.getLastArg(Id)) { 2664 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2665 if (Diags) 2666 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2667 << A->getValue(); 2668 } 2669 } 2670 return Res; 2671 } 2672 2673 2674 // Declared in clang/Frontend/Utils.h. 2675 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2676 DiagnosticsEngine *Diags) { 2677 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2678 } 2679 2680 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2681 uint64_t Default, 2682 DiagnosticsEngine *Diags) { 2683 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2684 } 2685 2686 void BuryPointer(const void *Ptr) { 2687 // This function may be called only a small fixed amount of times per each 2688 // invocation, otherwise we do actually have a leak which we want to report. 2689 // If this function is called more than kGraveYardMaxSize times, the pointers 2690 // will not be properly buried and a leak detector will report a leak, which 2691 // is what we want in such case. 2692 static const size_t kGraveYardMaxSize = 16; 2693 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2694 static std::atomic<unsigned> GraveYardSize; 2695 unsigned Idx = GraveYardSize++; 2696 if (Idx >= kGraveYardMaxSize) 2697 return; 2698 GraveYard[Idx] = Ptr; 2699 } 2700 2701 IntrusiveRefCntPtr<vfs::FileSystem> 2702 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2703 DiagnosticsEngine &Diags) { 2704 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2705 return vfs::getRealFileSystem(); 2706 2707 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2708 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2709 // earlier vfs files are on the bottom 2710 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2711 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2712 llvm::MemoryBuffer::getFile(File); 2713 if (!Buffer) { 2714 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2715 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2716 } 2717 2718 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2719 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2720 if (!FS.get()) { 2721 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2722 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2723 } 2724 Overlay->pushOverlay(FS); 2725 } 2726 return Overlay; 2727 } 2728 } // end namespace clang 2729