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 Opts.DebugPassManager = 480 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 481 /* Default */ false); 482 483 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 484 StringRef Name = A->getValue(); 485 if (Name == "Accelerate") 486 Opts.setVecLib(CodeGenOptions::Accelerate); 487 else if (Name == "SVML") 488 Opts.setVecLib(CodeGenOptions::SVML); 489 else if (Name == "none") 490 Opts.setVecLib(CodeGenOptions::NoLibrary); 491 else 492 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 493 } 494 495 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 496 unsigned Val = 497 llvm::StringSwitch<unsigned>(A->getValue()) 498 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 499 .Case("limited", codegenoptions::LimitedDebugInfo) 500 .Case("standalone", codegenoptions::FullDebugInfo) 501 .Default(~0U); 502 if (Val == ~0U) 503 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 504 << A->getValue(); 505 else 506 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 507 } 508 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 509 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 510 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 511 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 512 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 513 .Default(~0U); 514 if (Val == ~0U) 515 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 516 << A->getValue(); 517 else 518 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 519 } 520 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 521 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 522 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 523 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 524 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 525 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 526 Opts.EnableSplitDwarf = Args.hasArg(OPT_enable_split_dwarf); 527 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 528 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 529 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 530 Opts.DebugExplicitImport = Triple.isPS4CPU(); 531 532 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 533 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 534 535 if (const Arg *A = 536 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 537 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 538 539 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 540 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 541 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 542 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 543 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 544 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 545 OPT_fuse_register_sized_bitfield_access); 546 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 547 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 548 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 549 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 550 Opts.NoCommon = Args.hasArg(OPT_fno_common); 551 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 552 Opts.OptimizeSize = getOptimizationLevelSize(Args); 553 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 554 Args.hasArg(OPT_ffreestanding)); 555 if (Opts.SimplifyLibCalls) 556 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 557 Opts.UnrollLoops = 558 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 559 (Opts.OptimizationLevel > 1)); 560 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 561 562 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 563 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 564 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 565 Opts.DebugInfoForProfiling = Args.hasFlag( 566 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 567 568 setPGOInstrumentor(Opts, Args, Diags); 569 Opts.InstrProfileOutput = 570 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 571 Opts.ProfileInstrumentUsePath = 572 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 573 if (!Opts.ProfileInstrumentUsePath.empty()) 574 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 575 576 Opts.CoverageMapping = 577 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 578 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 579 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 580 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 581 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 582 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 583 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 584 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 585 Opts.CodeModel = getCodeModel(Args, Diags); 586 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 587 Opts.DisableFPElim = 588 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 589 Opts.DisableFree = Args.hasArg(OPT_disable_free); 590 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 591 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 592 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 593 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 594 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 595 Args.hasArg(OPT_cl_fast_relaxed_math); 596 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 597 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 598 Args.hasArg(OPT_cl_finite_math_only) || 599 Args.hasArg(OPT_cl_fast_relaxed_math)); 600 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 601 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 602 Args.hasArg(OPT_cl_finite_math_only) || 603 Args.hasArg(OPT_cl_fast_relaxed_math)); 604 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 605 Args.hasArg(OPT_cl_no_signed_zeros) || 606 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 607 Args.hasArg(OPT_cl_fast_relaxed_math)); 608 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 609 Opts.CorrectlyRoundedDivSqrt = 610 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 611 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 612 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 613 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 614 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 615 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 616 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 617 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 618 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 619 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 620 Opts.IncrementalLinkerCompatible = 621 Args.hasArg(OPT_mincremental_linker_compatible); 622 Opts.PIECopyRelocations = 623 Args.hasArg(OPT_mpie_copy_relocations); 624 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 625 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 626 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 627 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 628 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 629 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 630 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 631 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 632 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 633 Args.hasArg(OPT_cl_fast_relaxed_math); 634 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 635 Opts.RelocationModel = getRelocModel(Args, Diags); 636 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 637 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 638 Diags.Report(diag::err_drv_invalid_value) 639 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 640 << Opts.ThreadModel; 641 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 642 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 643 644 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 645 OPT_fno_function_sections, false); 646 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 647 OPT_fno_data_sections, false); 648 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 649 OPT_fno_unique_section_names, true); 650 651 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 652 653 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 654 655 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 656 Opts.EmitSummaryIndex = false; 657 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 658 StringRef S = A->getValue(); 659 if (S == "thin") 660 Opts.EmitSummaryIndex = true; 661 else if (S != "full") 662 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 663 } 664 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 665 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 666 if (IK.getLanguage() != InputKind::LLVM_IR) 667 Diags.Report(diag::err_drv_argument_only_allowed_with) 668 << A->getAsString(Args) << "-x ir"; 669 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 670 } 671 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 672 673 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 674 675 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 676 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 677 678 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 679 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 680 681 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 682 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 683 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 684 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 685 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 686 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 687 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 688 Opts.CoverageNoFunctionNamesInData = 689 Args.hasArg(OPT_coverage_no_function_names_in_data); 690 Opts.CoverageExitBlockBeforeBody = 691 Args.hasArg(OPT_coverage_exit_block_before_body); 692 if (Args.hasArg(OPT_coverage_version_EQ)) { 693 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 694 if (CoverageVersion.size() != 4) { 695 Diags.Report(diag::err_drv_invalid_value) 696 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 697 << CoverageVersion; 698 } else { 699 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 700 } 701 } 702 } 703 // Handle -fembed-bitcode option. 704 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 705 StringRef Name = A->getValue(); 706 unsigned Model = llvm::StringSwitch<unsigned>(Name) 707 .Case("off", CodeGenOptions::Embed_Off) 708 .Case("all", CodeGenOptions::Embed_All) 709 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 710 .Case("marker", CodeGenOptions::Embed_Marker) 711 .Default(~0U); 712 if (Model == ~0U) { 713 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 714 Success = false; 715 } else 716 Opts.setEmbedBitcode( 717 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 718 } 719 // FIXME: For backend options that are not yet recorded as function 720 // attributes in the IR, keep track of them so we can embed them in a 721 // separate data section and use them when building the bitcode. 722 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 723 for (const auto &A : Args) { 724 // Do not encode output and input. 725 if (A->getOption().getID() == options::OPT_o || 726 A->getOption().getID() == options::OPT_INPUT || 727 A->getOption().getID() == options::OPT_x || 728 A->getOption().getID() == options::OPT_fembed_bitcode || 729 (A->getOption().getGroup().isValid() && 730 A->getOption().getGroup().getID() == options::OPT_W_Group)) 731 continue; 732 ArgStringList ASL; 733 A->render(Args, ASL); 734 for (const auto &arg : ASL) { 735 StringRef ArgStr(arg); 736 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 737 // using \00 to seperate each commandline options. 738 Opts.CmdArgs.push_back('\0'); 739 } 740 } 741 } 742 743 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 744 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 745 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 746 Opts.XRayInstructionThreshold = 747 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 748 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 749 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 750 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 751 752 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 753 OPT_compress_debug_sections_EQ)) { 754 if (A->getOption().getID() == OPT_compress_debug_sections) { 755 // TODO: be more clever about the compression type auto-detection 756 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 757 } else { 758 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 759 .Case("none", llvm::DebugCompressionType::None) 760 .Case("zlib", llvm::DebugCompressionType::Z) 761 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 762 .Default(llvm::DebugCompressionType::None); 763 Opts.setCompressDebugSections(DCT); 764 } 765 } 766 767 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 768 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 769 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 770 CodeGenOptions::BitcodeFileToLink F; 771 F.Filename = A->getValue(); 772 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) { 773 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 774 // When linking CUDA bitcode, propagate function attributes so that 775 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 776 F.PropagateAttrs = true; 777 F.Internalize = true; 778 } 779 Opts.LinkBitcodeFiles.push_back(F); 780 } 781 Opts.SanitizeCoverageType = 782 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 783 Opts.SanitizeCoverageIndirectCalls = 784 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 785 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 786 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 787 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 788 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 789 Opts.SanitizeCoverage8bitCounters = 790 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 791 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 792 Opts.SanitizeCoverageTracePCGuard = 793 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 794 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 795 Opts.SanitizeCoverageInline8bitCounters = 796 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 797 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 798 Opts.SanitizeMemoryTrackOrigins = 799 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 800 Opts.SanitizeMemoryUseAfterDtor = 801 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 802 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 803 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 804 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 805 OPT_fno_sanitize_address_use_after_scope)) { 806 Opts.SanitizeAddressUseAfterScope = 807 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 808 } 809 Opts.SanitizeAddressGlobalsDeadStripping = 810 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 811 Opts.SSPBufferSize = 812 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 813 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 814 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 815 StringRef Val = A->getValue(); 816 unsigned StackAlignment = Opts.StackAlignment; 817 Val.getAsInteger(10, StackAlignment); 818 Opts.StackAlignment = StackAlignment; 819 } 820 821 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 822 StringRef Val = A->getValue(); 823 unsigned StackProbeSize = Opts.StackProbeSize; 824 Val.getAsInteger(0, StackProbeSize); 825 Opts.StackProbeSize = StackProbeSize; 826 } 827 828 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 829 StringRef Name = A->getValue(); 830 unsigned Method = llvm::StringSwitch<unsigned>(Name) 831 .Case("legacy", CodeGenOptions::Legacy) 832 .Case("non-legacy", CodeGenOptions::NonLegacy) 833 .Case("mixed", CodeGenOptions::Mixed) 834 .Default(~0U); 835 if (Method == ~0U) { 836 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 837 Success = false; 838 } else { 839 Opts.setObjCDispatchMethod( 840 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 841 } 842 } 843 844 Opts.EmulatedTLS = 845 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 846 847 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 848 StringRef Name = A->getValue(); 849 unsigned Model = llvm::StringSwitch<unsigned>(Name) 850 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 851 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 852 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 853 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 854 .Default(~0U); 855 if (Model == ~0U) { 856 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 857 Success = false; 858 } else { 859 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 860 } 861 } 862 863 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 864 StringRef Val = A->getValue(); 865 if (Val == "ieee") 866 Opts.FPDenormalMode = "ieee"; 867 else if (Val == "preserve-sign") 868 Opts.FPDenormalMode = "preserve-sign"; 869 else if (Val == "positive-zero") 870 Opts.FPDenormalMode = "positive-zero"; 871 else 872 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 873 } 874 875 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 876 if (A->getOption().matches(OPT_fpcc_struct_return)) { 877 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 878 } else { 879 assert(A->getOption().matches(OPT_freg_struct_return)); 880 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 881 } 882 } 883 884 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 885 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 886 bool NeedLocTracking = false; 887 888 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 889 if (!Opts.OptRecordFile.empty()) 890 NeedLocTracking = true; 891 892 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 893 Opts.OptimizationRemarkPattern = 894 GenerateOptimizationRemarkRegex(Diags, Args, A); 895 NeedLocTracking = true; 896 } 897 898 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 899 Opts.OptimizationRemarkMissedPattern = 900 GenerateOptimizationRemarkRegex(Diags, Args, A); 901 NeedLocTracking = true; 902 } 903 904 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 905 Opts.OptimizationRemarkAnalysisPattern = 906 GenerateOptimizationRemarkRegex(Diags, Args, A); 907 NeedLocTracking = true; 908 } 909 910 Opts.DiagnosticsWithHotness = 911 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 912 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 913 bool UsingProfile = UsingSampleProfile || 914 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 915 916 if (Opts.DiagnosticsWithHotness && !UsingProfile) 917 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 918 << "-fdiagnostics-show-hotness"; 919 920 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 921 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 922 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 923 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 924 << "-fdiagnostics-hotness-threshold="; 925 926 // If the user requested to use a sample profile for PGO, then the 927 // backend will need to track source location information so the profile 928 // can be incorporated into the IR. 929 if (UsingSampleProfile) 930 NeedLocTracking = true; 931 932 // If the user requested a flag that requires source locations available in 933 // the backend, make sure that the backend tracks source location information. 934 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 935 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 936 937 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 938 939 // Parse -fsanitize-recover= arguments. 940 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 941 parseSanitizerKinds("-fsanitize-recover=", 942 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 943 Opts.SanitizeRecover); 944 parseSanitizerKinds("-fsanitize-trap=", 945 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 946 Opts.SanitizeTrap); 947 948 Opts.CudaGpuBinaryFileNames = 949 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 950 951 Opts.Backchain = Args.hasArg(OPT_mbackchain); 952 953 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 954 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 955 956 return Success; 957 } 958 959 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 960 ArgList &Args) { 961 using namespace options; 962 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 963 Opts.Targets = Args.getAllArgValues(OPT_MT); 964 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 965 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 966 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 967 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 968 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 969 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 970 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 971 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 972 Opts.ModuleDependencyOutputDir = 973 Args.getLastArgValue(OPT_module_dependency_dir); 974 if (Args.hasArg(OPT_MV)) 975 Opts.OutputFormat = DependencyOutputFormat::NMake; 976 // Add sanitizer blacklists as extra dependencies. 977 // They won't be discovered by the regular preprocessor, so 978 // we let make / ninja to know about this implicit dependency. 979 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 980 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 981 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 982 ModuleFiles.end()); 983 } 984 985 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 986 // Color diagnostics default to auto ("on" if terminal supports) in the driver 987 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 988 // Support both clang's -f[no-]color-diagnostics and gcc's 989 // -f[no-]diagnostics-colors[=never|always|auto]. 990 enum { 991 Colors_On, 992 Colors_Off, 993 Colors_Auto 994 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 995 for (Arg *A : Args) { 996 const Option &O = A->getOption(); 997 if (O.matches(options::OPT_fcolor_diagnostics) || 998 O.matches(options::OPT_fdiagnostics_color)) { 999 ShowColors = Colors_On; 1000 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1001 O.matches(options::OPT_fno_diagnostics_color)) { 1002 ShowColors = Colors_Off; 1003 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1004 StringRef Value(A->getValue()); 1005 if (Value == "always") 1006 ShowColors = Colors_On; 1007 else if (Value == "never") 1008 ShowColors = Colors_Off; 1009 else if (Value == "auto") 1010 ShowColors = Colors_Auto; 1011 } 1012 } 1013 return ShowColors == Colors_On || 1014 (ShowColors == Colors_Auto && 1015 llvm::sys::Process::StandardErrHasColors()); 1016 } 1017 1018 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1019 DiagnosticsEngine *Diags, 1020 bool DefaultDiagColor, bool DefaultShowOpt) { 1021 using namespace options; 1022 bool Success = true; 1023 1024 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1025 if (Arg *A = 1026 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1027 Opts.DiagnosticSerializationFile = A->getValue(); 1028 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1029 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1030 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1031 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1032 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1033 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1034 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1035 OPT_fno_show_column, 1036 /*Default=*/true); 1037 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1038 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1039 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1040 Opts.ShowOptionNames = 1041 Args.hasFlag(OPT_fdiagnostics_show_option, 1042 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1043 1044 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1045 1046 // Default behavior is to not to show note include stacks. 1047 Opts.ShowNoteIncludeStack = false; 1048 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1049 OPT_fno_diagnostics_show_note_include_stack)) 1050 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1051 Opts.ShowNoteIncludeStack = true; 1052 1053 StringRef ShowOverloads = 1054 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1055 if (ShowOverloads == "best") 1056 Opts.setShowOverloads(Ovl_Best); 1057 else if (ShowOverloads == "all") 1058 Opts.setShowOverloads(Ovl_All); 1059 else { 1060 Success = false; 1061 if (Diags) 1062 Diags->Report(diag::err_drv_invalid_value) 1063 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1064 << ShowOverloads; 1065 } 1066 1067 StringRef ShowCategory = 1068 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1069 if (ShowCategory == "none") 1070 Opts.ShowCategories = 0; 1071 else if (ShowCategory == "id") 1072 Opts.ShowCategories = 1; 1073 else if (ShowCategory == "name") 1074 Opts.ShowCategories = 2; 1075 else { 1076 Success = false; 1077 if (Diags) 1078 Diags->Report(diag::err_drv_invalid_value) 1079 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1080 << ShowCategory; 1081 } 1082 1083 StringRef Format = 1084 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1085 if (Format == "clang") 1086 Opts.setFormat(DiagnosticOptions::Clang); 1087 else if (Format == "msvc") 1088 Opts.setFormat(DiagnosticOptions::MSVC); 1089 else if (Format == "msvc-fallback") { 1090 Opts.setFormat(DiagnosticOptions::MSVC); 1091 Opts.CLFallbackMode = true; 1092 } else if (Format == "vi") 1093 Opts.setFormat(DiagnosticOptions::Vi); 1094 else { 1095 Success = false; 1096 if (Diags) 1097 Diags->Report(diag::err_drv_invalid_value) 1098 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1099 << Format; 1100 } 1101 1102 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1103 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1104 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1105 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1106 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1107 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1108 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1109 Diags, DiagMask); 1110 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1111 DiagMask = DiagnosticLevelMask::All; 1112 Opts.setVerifyIgnoreUnexpected(DiagMask); 1113 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1114 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1115 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1116 Opts.MacroBacktraceLimit = 1117 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1118 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1119 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1120 Args, OPT_ftemplate_backtrace_limit, 1121 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1122 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1123 Args, OPT_fconstexpr_backtrace_limit, 1124 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1125 Opts.SpellCheckingLimit = getLastArgIntValue( 1126 Args, OPT_fspell_checking_limit, 1127 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1128 Opts.SnippetLineLimit = getLastArgIntValue( 1129 Args, OPT_fcaret_diagnostics_max_lines, 1130 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1131 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1132 DiagnosticOptions::DefaultTabStop, Diags); 1133 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1134 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1135 if (Diags) 1136 Diags->Report(diag::warn_ignoring_ftabstop_value) 1137 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1138 } 1139 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1140 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1141 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1142 1143 return Success; 1144 } 1145 1146 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1147 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1148 } 1149 1150 /// Parse the argument to the -ftest-module-file-extension 1151 /// command-line argument. 1152 /// 1153 /// \returns true on error, false on success. 1154 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1155 std::string &BlockName, 1156 unsigned &MajorVersion, 1157 unsigned &MinorVersion, 1158 bool &Hashed, 1159 std::string &UserInfo) { 1160 SmallVector<StringRef, 5> Args; 1161 Arg.split(Args, ':', 5); 1162 if (Args.size() < 5) 1163 return true; 1164 1165 BlockName = Args[0]; 1166 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1167 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1168 if (Args[3].getAsInteger(2, Hashed)) return true; 1169 if (Args.size() > 4) 1170 UserInfo = Args[4]; 1171 return false; 1172 } 1173 1174 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1175 DiagnosticsEngine &Diags, 1176 bool &IsHeaderFile) { 1177 using namespace options; 1178 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1179 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1180 switch (A->getOption().getID()) { 1181 default: 1182 llvm_unreachable("Invalid option in group!"); 1183 case OPT_ast_list: 1184 Opts.ProgramAction = frontend::ASTDeclList; break; 1185 case OPT_ast_dump: 1186 case OPT_ast_dump_all: 1187 case OPT_ast_dump_lookups: 1188 Opts.ProgramAction = frontend::ASTDump; break; 1189 case OPT_ast_print: 1190 Opts.ProgramAction = frontend::ASTPrint; break; 1191 case OPT_ast_view: 1192 Opts.ProgramAction = frontend::ASTView; break; 1193 case OPT_dump_raw_tokens: 1194 Opts.ProgramAction = frontend::DumpRawTokens; break; 1195 case OPT_dump_tokens: 1196 Opts.ProgramAction = frontend::DumpTokens; break; 1197 case OPT_S: 1198 Opts.ProgramAction = frontend::EmitAssembly; break; 1199 case OPT_emit_llvm_bc: 1200 Opts.ProgramAction = frontend::EmitBC; break; 1201 case OPT_emit_html: 1202 Opts.ProgramAction = frontend::EmitHTML; break; 1203 case OPT_emit_llvm: 1204 Opts.ProgramAction = frontend::EmitLLVM; break; 1205 case OPT_emit_llvm_only: 1206 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1207 case OPT_emit_codegen_only: 1208 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1209 case OPT_emit_obj: 1210 Opts.ProgramAction = frontend::EmitObj; break; 1211 case OPT_fixit_EQ: 1212 Opts.FixItSuffix = A->getValue(); 1213 // fall-through! 1214 case OPT_fixit: 1215 Opts.ProgramAction = frontend::FixIt; break; 1216 case OPT_emit_module: 1217 Opts.ProgramAction = frontend::GenerateModule; break; 1218 case OPT_emit_module_interface: 1219 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1220 case OPT_emit_pch: 1221 Opts.ProgramAction = frontend::GeneratePCH; break; 1222 case OPT_emit_pth: 1223 Opts.ProgramAction = frontend::GeneratePTH; break; 1224 case OPT_init_only: 1225 Opts.ProgramAction = frontend::InitOnly; break; 1226 case OPT_fsyntax_only: 1227 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1228 case OPT_module_file_info: 1229 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1230 case OPT_verify_pch: 1231 Opts.ProgramAction = frontend::VerifyPCH; break; 1232 case OPT_print_decl_contexts: 1233 Opts.ProgramAction = frontend::PrintDeclContext; break; 1234 case OPT_print_preamble: 1235 Opts.ProgramAction = frontend::PrintPreamble; break; 1236 case OPT_E: 1237 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1238 case OPT_rewrite_macros: 1239 Opts.ProgramAction = frontend::RewriteMacros; break; 1240 case OPT_rewrite_objc: 1241 Opts.ProgramAction = frontend::RewriteObjC; break; 1242 case OPT_rewrite_test: 1243 Opts.ProgramAction = frontend::RewriteTest; break; 1244 case OPT_analyze: 1245 Opts.ProgramAction = frontend::RunAnalysis; break; 1246 case OPT_migrate: 1247 Opts.ProgramAction = frontend::MigrateSource; break; 1248 case OPT_Eonly: 1249 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1250 } 1251 } 1252 1253 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1254 Opts.Plugins.emplace_back(A->getValue(0)); 1255 Opts.ProgramAction = frontend::PluginAction; 1256 Opts.ActionName = A->getValue(); 1257 } 1258 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1259 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1260 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1261 1262 for (const std::string &Arg : 1263 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1264 std::string BlockName; 1265 unsigned MajorVersion; 1266 unsigned MinorVersion; 1267 bool Hashed; 1268 std::string UserInfo; 1269 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1270 MinorVersion, Hashed, UserInfo)) { 1271 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1272 1273 continue; 1274 } 1275 1276 // Add the testing module file extension. 1277 Opts.ModuleFileExtensions.push_back( 1278 std::make_shared<TestModuleFileExtension>( 1279 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1280 } 1281 1282 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1283 Opts.CodeCompletionAt = 1284 ParsedSourceLocation::FromString(A->getValue()); 1285 if (Opts.CodeCompletionAt.FileName.empty()) 1286 Diags.Report(diag::err_drv_invalid_value) 1287 << A->getAsString(Args) << A->getValue(); 1288 } 1289 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1290 1291 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1292 Opts.Plugins = Args.getAllArgValues(OPT_load); 1293 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1294 Opts.ShowHelp = Args.hasArg(OPT_help); 1295 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1296 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1297 Opts.ShowVersion = Args.hasArg(OPT_version); 1298 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1299 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1300 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1301 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1302 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1303 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1304 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1305 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1306 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1307 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1308 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1309 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1310 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1311 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 1312 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1313 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1314 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1315 1316 Opts.CodeCompleteOpts.IncludeMacros 1317 = Args.hasArg(OPT_code_completion_macros); 1318 Opts.CodeCompleteOpts.IncludeCodePatterns 1319 = Args.hasArg(OPT_code_completion_patterns); 1320 Opts.CodeCompleteOpts.IncludeGlobals 1321 = !Args.hasArg(OPT_no_code_completion_globals); 1322 Opts.CodeCompleteOpts.IncludeBriefComments 1323 = Args.hasArg(OPT_code_completion_brief_comments); 1324 1325 Opts.OverrideRecordLayoutsFile 1326 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1327 Opts.AuxTriple = 1328 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1329 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1330 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1331 1332 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1333 OPT_arcmt_modify, 1334 OPT_arcmt_migrate)) { 1335 switch (A->getOption().getID()) { 1336 default: 1337 llvm_unreachable("missed a case"); 1338 case OPT_arcmt_check: 1339 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1340 break; 1341 case OPT_arcmt_modify: 1342 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1343 break; 1344 case OPT_arcmt_migrate: 1345 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1346 break; 1347 } 1348 } 1349 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1350 Opts.ARCMTMigrateReportOut 1351 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1352 Opts.ARCMTMigrateEmitARCErrors 1353 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1354 1355 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1356 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1357 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1358 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1359 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1360 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1361 if (Args.hasArg(OPT_objcmt_migrate_property)) 1362 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1363 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1364 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1365 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1366 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1367 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1368 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1369 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1370 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1371 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1372 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1373 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1374 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1375 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1376 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1377 if (Args.hasArg(OPT_objcmt_atomic_property)) 1378 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1379 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1380 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1381 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1382 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1383 if (Args.hasArg(OPT_objcmt_migrate_all)) 1384 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1385 1386 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1387 1388 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1389 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1390 Diags.Report(diag::err_drv_argument_not_allowed_with) 1391 << "ARC migration" << "ObjC migration"; 1392 } 1393 1394 InputKind DashX(InputKind::Unknown); 1395 if (const Arg *A = Args.getLastArg(OPT_x)) { 1396 StringRef XValue = A->getValue(); 1397 1398 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1399 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1400 bool Preprocessed = XValue.consume_back("-cpp-output"); 1401 bool ModuleMap = XValue.consume_back("-module-map"); 1402 IsHeaderFile = 1403 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1404 1405 // Principal languages. 1406 DashX = llvm::StringSwitch<InputKind>(XValue) 1407 .Case("c", InputKind::C) 1408 .Case("cl", InputKind::OpenCL) 1409 .Case("cuda", InputKind::CUDA) 1410 .Case("c++", InputKind::CXX) 1411 .Case("objective-c", InputKind::ObjC) 1412 .Case("objective-c++", InputKind::ObjCXX) 1413 .Case("renderscript", InputKind::RenderScript) 1414 .Default(InputKind::Unknown); 1415 1416 // "objc[++]-cpp-output" is an acceptable synonym for 1417 // "objective-c[++]-cpp-output". 1418 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1419 DashX = llvm::StringSwitch<InputKind>(XValue) 1420 .Case("objc", InputKind::ObjC) 1421 .Case("objc++", InputKind::ObjCXX) 1422 .Default(InputKind::Unknown); 1423 1424 // Some special cases cannot be combined with suffixes. 1425 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1426 DashX = llvm::StringSwitch<InputKind>(XValue) 1427 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1428 .Case("assembler-with-cpp", InputKind::Asm) 1429 .Cases("ast", "pcm", 1430 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1431 .Case("ir", InputKind::LLVM_IR) 1432 .Default(InputKind::Unknown); 1433 1434 if (DashX.isUnknown()) 1435 Diags.Report(diag::err_drv_invalid_value) 1436 << A->getAsString(Args) << A->getValue(); 1437 1438 if (Preprocessed) 1439 DashX = DashX.getPreprocessed(); 1440 if (ModuleMap) 1441 DashX = DashX.withFormat(InputKind::ModuleMap); 1442 } 1443 1444 // '-' is the default input if none is given. 1445 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1446 Opts.Inputs.clear(); 1447 if (Inputs.empty()) 1448 Inputs.push_back("-"); 1449 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1450 InputKind IK = DashX; 1451 if (IK.isUnknown()) { 1452 IK = FrontendOptions::getInputKindForExtension( 1453 StringRef(Inputs[i]).rsplit('.').second); 1454 // FIXME: Warn on this? 1455 if (IK.isUnknown()) 1456 IK = InputKind::C; 1457 // FIXME: Remove this hack. 1458 if (i == 0) 1459 DashX = IK; 1460 } 1461 1462 // The -emit-module action implicitly takes a module map. 1463 if (Opts.ProgramAction == frontend::GenerateModule && 1464 IK.getFormat() == InputKind::Source) 1465 IK = IK.withFormat(InputKind::ModuleMap); 1466 1467 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1468 } 1469 1470 return DashX; 1471 } 1472 1473 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1474 void *MainAddr) { 1475 std::string ClangExecutable = 1476 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1477 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1478 1479 // Compute the path to the resource directory. 1480 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1481 SmallString<128> P(Dir); 1482 if (ClangResourceDir != "") 1483 llvm::sys::path::append(P, ClangResourceDir); 1484 else 1485 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1486 "clang", CLANG_VERSION_STRING); 1487 1488 return P.str(); 1489 } 1490 1491 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1492 const std::string &WorkingDir) { 1493 using namespace options; 1494 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1495 Opts.Verbose = Args.hasArg(OPT_v); 1496 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1497 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1498 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1499 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1500 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1501 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1502 1503 // Canonicalize -fmodules-cache-path before storing it. 1504 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1505 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1506 if (WorkingDir.empty()) 1507 llvm::sys::fs::make_absolute(P); 1508 else 1509 llvm::sys::fs::make_absolute(WorkingDir, P); 1510 } 1511 llvm::sys::path::remove_dots(P); 1512 Opts.ModuleCachePath = P.str(); 1513 1514 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1515 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1516 Opts.AddPrebuiltModulePath(A->getValue()); 1517 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1518 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1519 Opts.ModulesValidateDiagnosticOptions = 1520 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1521 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1522 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1523 Opts.ModuleCachePruneInterval = 1524 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1525 Opts.ModuleCachePruneAfter = 1526 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1527 Opts.ModulesValidateOncePerBuildSession = 1528 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1529 Opts.BuildSessionTimestamp = 1530 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1531 Opts.ModulesValidateSystemHeaders = 1532 Args.hasArg(OPT_fmodules_validate_system_headers); 1533 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1534 Opts.ModuleFormat = A->getValue(); 1535 1536 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1537 StringRef MacroDef = A->getValue(); 1538 Opts.ModulesIgnoreMacros.insert( 1539 llvm::CachedHashString(MacroDef.split('=').first)); 1540 } 1541 1542 // Add -I..., -F..., and -index-header-map options in order. 1543 bool IsIndexHeaderMap = false; 1544 bool IsSysrootSpecified = 1545 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1546 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1547 if (A->getOption().matches(OPT_index_header_map)) { 1548 // -index-header-map applies to the next -I or -F. 1549 IsIndexHeaderMap = true; 1550 continue; 1551 } 1552 1553 frontend::IncludeDirGroup Group = 1554 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1555 1556 bool IsFramework = A->getOption().matches(OPT_F); 1557 std::string Path = A->getValue(); 1558 1559 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1560 SmallString<32> Buffer; 1561 llvm::sys::path::append(Buffer, Opts.Sysroot, 1562 llvm::StringRef(A->getValue()).substr(1)); 1563 Path = Buffer.str(); 1564 } 1565 1566 Opts.AddPath(Path, Group, IsFramework, 1567 /*IgnoreSysroot*/ true); 1568 IsIndexHeaderMap = false; 1569 } 1570 1571 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1572 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1573 for (const Arg *A : 1574 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1575 if (A->getOption().matches(OPT_iprefix)) 1576 Prefix = A->getValue(); 1577 else if (A->getOption().matches(OPT_iwithprefix)) 1578 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1579 else 1580 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1581 } 1582 1583 for (const Arg *A : Args.filtered(OPT_idirafter)) 1584 Opts.AddPath(A->getValue(), frontend::After, false, true); 1585 for (const Arg *A : Args.filtered(OPT_iquote)) 1586 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1587 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1588 Opts.AddPath(A->getValue(), frontend::System, false, 1589 !A->getOption().matches(OPT_iwithsysroot)); 1590 for (const Arg *A : Args.filtered(OPT_iframework)) 1591 Opts.AddPath(A->getValue(), frontend::System, true, true); 1592 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot)) 1593 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1594 /*IgnoreSysRoot=*/false); 1595 1596 // Add the paths for the various language specific isystem flags. 1597 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1598 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1599 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1600 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1601 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1602 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1603 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1604 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1605 1606 // Add the internal paths from a driver that detects standard include paths. 1607 for (const Arg *A : 1608 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1609 frontend::IncludeDirGroup Group = frontend::System; 1610 if (A->getOption().matches(OPT_internal_externc_isystem)) 1611 Group = frontend::ExternCSystem; 1612 Opts.AddPath(A->getValue(), Group, false, true); 1613 } 1614 1615 // Add the path prefixes which are implicitly treated as being system headers. 1616 for (const Arg *A : 1617 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1618 Opts.AddSystemHeaderPrefix( 1619 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1620 1621 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1622 Opts.AddVFSOverlayFile(A->getValue()); 1623 } 1624 1625 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1626 const llvm::Triple &T, 1627 PreprocessorOptions &PPOpts, 1628 LangStandard::Kind LangStd) { 1629 // Set some properties which depend solely on the input kind; it would be nice 1630 // to move these to the language standard, and have the driver resolve the 1631 // input kind + language standard. 1632 // 1633 // FIXME: Perhaps a better model would be for a single source file to have 1634 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 1635 // simultaneously active? 1636 if (IK.getLanguage() == InputKind::Asm) { 1637 Opts.AsmPreprocessor = 1; 1638 } else if (IK.isObjectiveC()) { 1639 Opts.ObjC1 = Opts.ObjC2 = 1; 1640 } 1641 1642 if (LangStd == LangStandard::lang_unspecified) { 1643 // Based on the base language, pick one. 1644 switch (IK.getLanguage()) { 1645 case InputKind::Unknown: 1646 case InputKind::LLVM_IR: 1647 llvm_unreachable("Invalid input kind!"); 1648 case InputKind::OpenCL: 1649 LangStd = LangStandard::lang_opencl10; 1650 break; 1651 case InputKind::CUDA: 1652 LangStd = LangStandard::lang_cuda; 1653 break; 1654 case InputKind::Asm: 1655 case InputKind::C: 1656 // The PS4 uses C99 as the default C standard. 1657 if (T.isPS4()) 1658 LangStd = LangStandard::lang_gnu99; 1659 else 1660 LangStd = LangStandard::lang_gnu11; 1661 break; 1662 case InputKind::ObjC: 1663 LangStd = LangStandard::lang_gnu11; 1664 break; 1665 case InputKind::CXX: 1666 case InputKind::ObjCXX: 1667 // The PS4 uses C++11 as the default C++ standard. 1668 if (T.isPS4()) 1669 LangStd = LangStandard::lang_gnucxx11; 1670 else 1671 LangStd = LangStandard::lang_gnucxx98; 1672 break; 1673 case InputKind::RenderScript: 1674 LangStd = LangStandard::lang_c99; 1675 break; 1676 } 1677 } 1678 1679 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1680 Opts.LineComment = Std.hasLineComments(); 1681 Opts.C99 = Std.isC99(); 1682 Opts.C11 = Std.isC11(); 1683 Opts.CPlusPlus = Std.isCPlusPlus(); 1684 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1685 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1686 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1687 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 1688 Opts.Digraphs = Std.hasDigraphs(); 1689 Opts.GNUMode = Std.isGNUMode(); 1690 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 1691 Opts.HexFloats = Std.hasHexFloats(); 1692 Opts.ImplicitInt = Std.hasImplicitInt(); 1693 1694 // Set OpenCL Version. 1695 Opts.OpenCL = Std.isOpenCL(); 1696 if (LangStd == LangStandard::lang_opencl10) 1697 Opts.OpenCLVersion = 100; 1698 else if (LangStd == LangStandard::lang_opencl11) 1699 Opts.OpenCLVersion = 110; 1700 else if (LangStd == LangStandard::lang_opencl12) 1701 Opts.OpenCLVersion = 120; 1702 else if (LangStd == LangStandard::lang_opencl20) 1703 Opts.OpenCLVersion = 200; 1704 1705 // OpenCL has some additional defaults. 1706 if (Opts.OpenCL) { 1707 Opts.AltiVec = 0; 1708 Opts.ZVector = 0; 1709 Opts.LaxVectorConversions = 0; 1710 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 1711 Opts.NativeHalfType = 1; 1712 Opts.NativeHalfArgsAndReturns = 1; 1713 // Include default header file for OpenCL. 1714 if (Opts.IncludeDefaultHeader) { 1715 PPOpts.Includes.push_back("opencl-c.h"); 1716 } 1717 } 1718 1719 Opts.CUDA = IK.getLanguage() == InputKind::CUDA; 1720 if (Opts.CUDA) 1721 // Set default FP_CONTRACT to FAST. 1722 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 1723 1724 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 1725 if (Opts.RenderScript) { 1726 Opts.NativeHalfType = 1; 1727 Opts.NativeHalfArgsAndReturns = 1; 1728 } 1729 1730 // OpenCL and C++ both have bool, true, false keywords. 1731 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1732 1733 // OpenCL has half keyword 1734 Opts.Half = Opts.OpenCL; 1735 1736 // C++ has wchar_t keyword. 1737 Opts.WChar = Opts.CPlusPlus; 1738 1739 Opts.GNUKeywords = Opts.GNUMode; 1740 Opts.CXXOperatorNames = Opts.CPlusPlus; 1741 1742 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1743 1744 Opts.DollarIdents = !Opts.AsmPreprocessor; 1745 } 1746 1747 /// Attempt to parse a visibility value out of the given argument. 1748 static Visibility parseVisibility(Arg *arg, ArgList &args, 1749 DiagnosticsEngine &diags) { 1750 StringRef value = arg->getValue(); 1751 if (value == "default") { 1752 return DefaultVisibility; 1753 } else if (value == "hidden" || value == "internal") { 1754 return HiddenVisibility; 1755 } else if (value == "protected") { 1756 // FIXME: diagnose if target does not support protected visibility 1757 return ProtectedVisibility; 1758 } 1759 1760 diags.Report(diag::err_drv_invalid_value) 1761 << arg->getAsString(args) << value; 1762 return DefaultVisibility; 1763 } 1764 1765 /// Check if input file kind and language standard are compatible. 1766 static bool IsInputCompatibleWithStandard(InputKind IK, 1767 const LangStandard &S) { 1768 switch (IK.getLanguage()) { 1769 case InputKind::Unknown: 1770 case InputKind::LLVM_IR: 1771 llvm_unreachable("should not parse language flags for this input"); 1772 1773 case InputKind::C: 1774 case InputKind::ObjC: 1775 case InputKind::RenderScript: 1776 return S.getLanguage() == InputKind::C; 1777 1778 case InputKind::OpenCL: 1779 return S.getLanguage() == InputKind::OpenCL; 1780 1781 case InputKind::CXX: 1782 case InputKind::ObjCXX: 1783 return S.getLanguage() == InputKind::CXX; 1784 1785 case InputKind::CUDA: 1786 // FIXME: What -std= values should be permitted for CUDA compilations? 1787 return S.getLanguage() == InputKind::CUDA || 1788 S.getLanguage() == InputKind::CXX; 1789 1790 case InputKind::Asm: 1791 // Accept (and ignore) all -std= values. 1792 // FIXME: The -std= value is not ignored; it affects the tokenization 1793 // and preprocessing rules if we're preprocessing this asm input. 1794 return true; 1795 } 1796 1797 llvm_unreachable("unexpected input language"); 1798 } 1799 1800 /// Get language name for given input kind. 1801 static const StringRef GetInputKindName(InputKind IK) { 1802 switch (IK.getLanguage()) { 1803 case InputKind::C: 1804 return "C"; 1805 case InputKind::ObjC: 1806 return "Objective-C"; 1807 case InputKind::CXX: 1808 return "C++"; 1809 case InputKind::ObjCXX: 1810 return "Objective-C++"; 1811 case InputKind::OpenCL: 1812 return "OpenCL"; 1813 case InputKind::CUDA: 1814 return "CUDA"; 1815 case InputKind::RenderScript: 1816 return "RenderScript"; 1817 1818 case InputKind::Asm: 1819 return "Asm"; 1820 case InputKind::LLVM_IR: 1821 return "LLVM IR"; 1822 1823 case InputKind::Unknown: 1824 break; 1825 } 1826 llvm_unreachable("unknown input language"); 1827 } 1828 1829 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1830 const TargetOptions &TargetOpts, 1831 PreprocessorOptions &PPOpts, 1832 DiagnosticsEngine &Diags) { 1833 // FIXME: Cleanup per-file based stuff. 1834 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1835 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1836 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1837 #define LANGSTANDARD(id, name, lang, desc, features) \ 1838 .Case(name, LangStandard::lang_##id) 1839 #define LANGSTANDARD_ALIAS(id, alias) \ 1840 .Case(alias, LangStandard::lang_##id) 1841 #include "clang/Frontend/LangStandards.def" 1842 .Default(LangStandard::lang_unspecified); 1843 if (LangStd == LangStandard::lang_unspecified) { 1844 Diags.Report(diag::err_drv_invalid_value) 1845 << A->getAsString(Args) << A->getValue(); 1846 // Report supported standards with short description. 1847 for (unsigned KindValue = 0; 1848 KindValue != LangStandard::lang_unspecified; 1849 ++KindValue) { 1850 const LangStandard &Std = LangStandard::getLangStandardForKind( 1851 static_cast<LangStandard::Kind>(KindValue)); 1852 if (IsInputCompatibleWithStandard(IK, Std)) { 1853 auto Diag = Diags.Report(diag::note_drv_use_standard); 1854 Diag << Std.getName() << Std.getDescription(); 1855 unsigned NumAliases = 0; 1856 #define LANGSTANDARD(id, name, lang, desc, features) 1857 #define LANGSTANDARD_ALIAS(id, alias) \ 1858 if (KindValue == LangStandard::lang_##id) ++NumAliases; 1859 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1860 #include "clang/Frontend/LangStandards.def" 1861 Diag << NumAliases; 1862 #define LANGSTANDARD(id, name, lang, desc, features) 1863 #define LANGSTANDARD_ALIAS(id, alias) \ 1864 if (KindValue == LangStandard::lang_##id) Diag << alias; 1865 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1866 #include "clang/Frontend/LangStandards.def" 1867 } 1868 } 1869 } else { 1870 // Valid standard, check to make sure language and standard are 1871 // compatible. 1872 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1873 if (!IsInputCompatibleWithStandard(IK, Std)) { 1874 Diags.Report(diag::err_drv_argument_not_allowed_with) 1875 << A->getAsString(Args) << GetInputKindName(IK); 1876 } 1877 } 1878 } 1879 1880 // -cl-std only applies for OpenCL language standards. 1881 // Override the -std option in this case. 1882 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1883 LangStandard::Kind OpenCLLangStd 1884 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1885 .Cases("cl", "CL", LangStandard::lang_opencl10) 1886 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1887 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1888 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1889 .Default(LangStandard::lang_unspecified); 1890 1891 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1892 Diags.Report(diag::err_drv_invalid_value) 1893 << A->getAsString(Args) << A->getValue(); 1894 } 1895 else 1896 LangStd = OpenCLLangStd; 1897 } 1898 1899 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1900 1901 llvm::Triple T(TargetOpts.Triple); 1902 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1903 1904 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1905 // This option should be deprecated for CL > 1.0 because 1906 // this option was added for compatibility with OpenCL 1.0. 1907 if (Args.getLastArg(OPT_cl_strict_aliasing) 1908 && Opts.OpenCLVersion > 100) { 1909 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1910 std::string(".") + 1911 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1912 Diags.Report(diag::warn_option_invalid_ocl_version) 1913 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1914 } 1915 1916 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1917 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1918 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1919 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1920 // name, as it doesn't seem a useful distinction. 1921 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1922 Opts.GNUKeywords); 1923 1924 if (Args.hasArg(OPT_fno_operator_names)) 1925 Opts.CXXOperatorNames = 0; 1926 1927 if (Args.hasArg(OPT_fcuda_is_device)) 1928 Opts.CUDAIsDevice = 1; 1929 1930 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1931 Opts.CUDAAllowVariadicFunctions = 1; 1932 1933 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1934 Opts.CUDAHostDeviceConstexpr = 0; 1935 1936 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1937 Opts.CUDADeviceFlushDenormalsToZero = 1; 1938 1939 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1940 Opts.CUDADeviceApproxTranscendentals = 1; 1941 1942 if (Opts.ObjC1) { 1943 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1944 StringRef value = arg->getValue(); 1945 if (Opts.ObjCRuntime.tryParse(value)) 1946 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1947 } 1948 1949 if (Args.hasArg(OPT_fobjc_gc_only)) 1950 Opts.setGC(LangOptions::GCOnly); 1951 else if (Args.hasArg(OPT_fobjc_gc)) 1952 Opts.setGC(LangOptions::HybridGC); 1953 else if (Args.hasArg(OPT_fobjc_arc)) { 1954 Opts.ObjCAutoRefCount = 1; 1955 if (!Opts.ObjCRuntime.allowsARC()) 1956 Diags.Report(diag::err_arc_unsupported_on_runtime); 1957 } 1958 1959 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 1960 // whether the feature is actually enabled. This is predominantly 1961 // determined by -fobjc-runtime, but we allow it to be overridden 1962 // from the command line for testing purposes. 1963 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1964 Opts.ObjCWeakRuntime = 1; 1965 else 1966 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 1967 1968 // ObjCWeak determines whether __weak is actually enabled. 1969 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 1970 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 1971 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 1972 assert(!Opts.ObjCWeak); 1973 } else if (Opts.getGC() != LangOptions::NonGC) { 1974 Diags.Report(diag::err_objc_weak_with_gc); 1975 } else if (!Opts.ObjCWeakRuntime) { 1976 Diags.Report(diag::err_objc_weak_unsupported); 1977 } else { 1978 Opts.ObjCWeak = 1; 1979 } 1980 } else if (Opts.ObjCAutoRefCount) { 1981 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 1982 } 1983 1984 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1985 Opts.ObjCInferRelatedResultType = 0; 1986 1987 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1988 Opts.ObjCSubscriptingLegacyRuntime = 1989 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1990 } 1991 1992 if (Args.hasArg(OPT_fgnu89_inline)) { 1993 if (Opts.CPlusPlus) 1994 Diags.Report(diag::err_drv_argument_not_allowed_with) 1995 << "-fgnu89-inline" << GetInputKindName(IK); 1996 else 1997 Opts.GNUInline = 1; 1998 } 1999 2000 if (Args.hasArg(OPT_fapple_kext)) { 2001 if (!Opts.CPlusPlus) 2002 Diags.Report(diag::warn_c_kext); 2003 else 2004 Opts.AppleKext = 1; 2005 } 2006 2007 if (Args.hasArg(OPT_print_ivar_layout)) 2008 Opts.ObjCGCBitmapPrint = 1; 2009 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2010 Opts.NoConstantCFStrings = 1; 2011 2012 if (Args.hasArg(OPT_fzvector)) 2013 Opts.ZVector = 1; 2014 2015 if (Args.hasArg(OPT_pthread)) 2016 Opts.POSIXThreads = 1; 2017 2018 // The value-visibility mode defaults to "default". 2019 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2020 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2021 } else { 2022 Opts.setValueVisibilityMode(DefaultVisibility); 2023 } 2024 2025 // The type-visibility mode defaults to the value-visibility mode. 2026 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2027 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2028 } else { 2029 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2030 } 2031 2032 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2033 Opts.InlineVisibilityHidden = 1; 2034 2035 if (Args.hasArg(OPT_ftrapv)) { 2036 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2037 // Set the handler, if one is specified. 2038 Opts.OverflowHandler = 2039 Args.getLastArgValue(OPT_ftrapv_handler); 2040 } 2041 else if (Args.hasArg(OPT_fwrapv)) 2042 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2043 2044 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2045 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2046 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2047 Opts.MSCompatibilityVersion = 0; 2048 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2049 VersionTuple VT; 2050 if (VT.tryParse(A->getValue())) 2051 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2052 << A->getValue(); 2053 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2054 VT.getMinor().getValueOr(0) * 100000 + 2055 VT.getSubminor().getValueOr(0); 2056 } 2057 2058 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 2059 // is specified, or -std is set to a conforming mode. 2060 // Trigraphs are disabled by default in c++1z onwards. 2061 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 2062 Opts.Trigraphs = 2063 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2064 2065 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2066 OPT_fno_dollars_in_identifiers, 2067 Opts.DollarIdents); 2068 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2069 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2070 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2071 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2072 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2073 Opts.ConstStrings); 2074 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2075 Opts.LaxVectorConversions = 0; 2076 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2077 Opts.ThreadsafeStatics = 0; 2078 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2079 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2080 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2081 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 2082 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2083 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2084 2085 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2086 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2087 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2088 && Opts.OpenCLVersion >= 200); 2089 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2090 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2091 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2092 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2093 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2094 Opts.ModulesDeclUse = 2095 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2096 Opts.ModulesLocalVisibility = 2097 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2098 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2099 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2100 Opts.ModulesSearchAll = Opts.Modules && 2101 !Args.hasArg(OPT_fno_modules_search_all) && 2102 Args.hasArg(OPT_fmodules_search_all); 2103 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2104 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2105 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2106 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2107 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 2108 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2109 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2110 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2111 if (!Opts.NoBuiltin) 2112 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2113 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2114 Opts.RelaxedTemplateTemplateArgs = 2115 Args.hasArg(OPT_frelaxed_template_template_args); 2116 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2117 Opts.AlignedAllocation = 2118 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2119 Opts.AlignedAllocation); 2120 Opts.AlignedAllocationUnavailable = 2121 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2122 Opts.NewAlignOverride = 2123 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2124 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2125 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2126 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2127 << A->getValue(); 2128 Opts.NewAlignOverride = 0; 2129 } 2130 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2131 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2132 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2133 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2134 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2135 Opts.InstantiationDepth = 2136 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2137 Opts.ArrowDepth = 2138 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2139 Opts.ConstexprCallDepth = 2140 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2141 Opts.ConstexprStepLimit = 2142 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2143 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2144 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2145 Opts.NumLargeByValueCopy = 2146 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2147 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2148 Opts.ObjCConstantStringClass = 2149 Args.getLastArgValue(OPT_fconstant_string_class); 2150 Opts.ObjCDefaultSynthProperties = 2151 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2152 Opts.EncodeExtendedBlockSig = 2153 Args.hasArg(OPT_fencode_extended_block_signature); 2154 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2155 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2156 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2157 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2158 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2159 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2160 Opts.Static = Args.hasArg(OPT_static_define); 2161 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2162 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2163 || Args.hasArg(OPT_fdump_record_layouts); 2164 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2165 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2166 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2167 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2168 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2169 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2170 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2171 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2172 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2173 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2174 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2175 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2176 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2177 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2178 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2179 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2180 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2181 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2182 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2183 // is enabled. 2184 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2185 | Opts.NativeHalfArgsAndReturns; 2186 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2187 2188 // __declspec is enabled by default for the PS4 by the driver, and also 2189 // enabled for Microsoft Extensions or Borland Extensions, here. 2190 // 2191 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2192 // CUDA extension. However, it is required for supporting 2193 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2194 // been rewritten in terms of something more generic, remove the Opts.CUDA 2195 // term here. 2196 Opts.DeclSpecKeyword = 2197 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2198 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2199 2200 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2201 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2202 .Case("target", LangOptions::ASMM_Target) 2203 .Case("no", LangOptions::ASMM_Off) 2204 .Case("yes", LangOptions::ASMM_On) 2205 .Default(255)) { 2206 default: 2207 Diags.Report(diag::err_drv_invalid_value) 2208 << "-faddress-space-map-mangling=" << A->getValue(); 2209 break; 2210 case LangOptions::ASMM_Target: 2211 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2212 break; 2213 case LangOptions::ASMM_On: 2214 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2215 break; 2216 case LangOptions::ASMM_Off: 2217 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2218 break; 2219 } 2220 } 2221 2222 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2223 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2224 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2225 A->getValue()) 2226 .Case("single", 2227 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2228 .Case("multiple", 2229 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2230 .Case("virtual", 2231 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2232 .Default(LangOptions::PPTMK_BestCase); 2233 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2234 Diags.Report(diag::err_drv_invalid_value) 2235 << "-fms-memptr-rep=" << A->getValue(); 2236 2237 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2238 } 2239 2240 // Check for MS default calling conventions being specified. 2241 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2242 LangOptions::DefaultCallingConvention DefaultCC = 2243 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2244 A->getValue()) 2245 .Case("cdecl", LangOptions::DCC_CDecl) 2246 .Case("fastcall", LangOptions::DCC_FastCall) 2247 .Case("stdcall", LangOptions::DCC_StdCall) 2248 .Case("vectorcall", LangOptions::DCC_VectorCall) 2249 .Default(LangOptions::DCC_None); 2250 if (DefaultCC == LangOptions::DCC_None) 2251 Diags.Report(diag::err_drv_invalid_value) 2252 << "-fdefault-calling-conv=" << A->getValue(); 2253 2254 llvm::Triple T(TargetOpts.Triple); 2255 llvm::Triple::ArchType Arch = T.getArch(); 2256 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2257 DefaultCC == LangOptions::DCC_StdCall) && 2258 Arch != llvm::Triple::x86; 2259 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2260 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2261 if (emitError) 2262 Diags.Report(diag::err_drv_argument_not_allowed_with) 2263 << A->getSpelling() << T.getTriple(); 2264 else 2265 Opts.setDefaultCallingConv(DefaultCC); 2266 } 2267 2268 // -mrtd option 2269 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2270 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2271 Diags.Report(diag::err_drv_argument_not_allowed_with) 2272 << A->getSpelling() << "-fdefault-calling-conv"; 2273 else { 2274 llvm::Triple T(TargetOpts.Triple); 2275 if (T.getArch() != llvm::Triple::x86) 2276 Diags.Report(diag::err_drv_argument_not_allowed_with) 2277 << A->getSpelling() << T.getTriple(); 2278 else 2279 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2280 } 2281 } 2282 2283 // Check if -fopenmp is specified. 2284 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2285 Opts.OpenMPUseTLS = 2286 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2287 Opts.OpenMPIsDevice = 2288 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2289 2290 if (Opts.OpenMP) { 2291 int Version = 2292 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2293 if (Version != 0) 2294 Opts.OpenMP = Version; 2295 // Provide diagnostic when a given target is not expected to be an OpenMP 2296 // device or host. 2297 if (!Opts.OpenMPIsDevice) { 2298 switch (T.getArch()) { 2299 default: 2300 break; 2301 // Add unsupported host targets here: 2302 case llvm::Triple::nvptx: 2303 case llvm::Triple::nvptx64: 2304 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2305 << TargetOpts.Triple; 2306 break; 2307 } 2308 } 2309 } 2310 2311 // Get the OpenMP target triples if any. 2312 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2313 2314 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2315 llvm::Triple TT(A->getValue(i)); 2316 2317 if (TT.getArch() == llvm::Triple::UnknownArch) 2318 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2319 else 2320 Opts.OMPTargetTriples.push_back(TT); 2321 } 2322 } 2323 2324 // Get OpenMP host file path if any and report if a non existent file is 2325 // found 2326 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2327 Opts.OMPHostIRFile = A->getValue(); 2328 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2329 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2330 << Opts.OMPHostIRFile; 2331 } 2332 2333 // Record whether the __DEPRECATED define was requested. 2334 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2335 OPT_fno_deprecated_macro, 2336 Opts.Deprecated); 2337 2338 // FIXME: Eliminate this dependency. 2339 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2340 OptSize = getOptimizationLevelSize(Args); 2341 Opts.Optimize = Opt != 0; 2342 Opts.OptimizeSize = OptSize != 0; 2343 2344 // This is the __NO_INLINE__ define, which just depends on things like the 2345 // optimization level and -fno-inline, not actually whether the backend has 2346 // inlining enabled. 2347 Opts.NoInlineDefine = !Opts.Optimize; 2348 if (Arg *InlineArg = Args.getLastArg( 2349 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2350 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2351 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2352 Opts.NoInlineDefine = true; 2353 2354 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2355 Args.hasArg(OPT_cl_fast_relaxed_math); 2356 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2357 Args.hasArg(OPT_cl_finite_math_only) || 2358 Args.hasArg(OPT_cl_fast_relaxed_math); 2359 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2360 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2361 Args.hasArg(OPT_cl_fast_relaxed_math); 2362 2363 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2364 StringRef Val = A->getValue(); 2365 if (Val == "fast") 2366 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2367 else if (Val == "on") 2368 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2369 else if (Val == "off") 2370 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2371 else 2372 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2373 } 2374 2375 Opts.RetainCommentsFromSystemHeaders = 2376 Args.hasArg(OPT_fretain_comments_from_system_headers); 2377 2378 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2379 switch (SSP) { 2380 default: 2381 Diags.Report(diag::err_drv_invalid_value) 2382 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2383 break; 2384 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2385 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2386 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2387 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2388 } 2389 2390 // Parse -fsanitize= arguments. 2391 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2392 Diags, Opts.Sanitize); 2393 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2394 Opts.SanitizeAddressFieldPadding = 2395 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2396 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2397 2398 // -fxray-instrument 2399 Opts.XRayInstrument = 2400 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2401 2402 // -fxray-{always,never}-instrument= filenames. 2403 Opts.XRayAlwaysInstrumentFiles = 2404 Args.getAllArgValues(OPT_fxray_always_instrument); 2405 Opts.XRayNeverInstrumentFiles = 2406 Args.getAllArgValues(OPT_fxray_never_instrument); 2407 2408 // -fallow-editor-placeholders 2409 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2410 } 2411 2412 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 2413 switch (Action) { 2414 case frontend::ASTDeclList: 2415 case frontend::ASTDump: 2416 case frontend::ASTPrint: 2417 case frontend::ASTView: 2418 case frontend::EmitAssembly: 2419 case frontend::EmitBC: 2420 case frontend::EmitHTML: 2421 case frontend::EmitLLVM: 2422 case frontend::EmitLLVMOnly: 2423 case frontend::EmitCodeGenOnly: 2424 case frontend::EmitObj: 2425 case frontend::FixIt: 2426 case frontend::GenerateModule: 2427 case frontend::GenerateModuleInterface: 2428 case frontend::GeneratePCH: 2429 case frontend::GeneratePTH: 2430 case frontend::ParseSyntaxOnly: 2431 case frontend::ModuleFileInfo: 2432 case frontend::VerifyPCH: 2433 case frontend::PluginAction: 2434 case frontend::PrintDeclContext: 2435 case frontend::RewriteObjC: 2436 case frontend::RewriteTest: 2437 case frontend::RunAnalysis: 2438 case frontend::MigrateSource: 2439 return false; 2440 2441 case frontend::DumpRawTokens: 2442 case frontend::DumpTokens: 2443 case frontend::InitOnly: 2444 case frontend::PrintPreamble: 2445 case frontend::PrintPreprocessedInput: 2446 case frontend::RewriteMacros: 2447 case frontend::RunPreprocessorOnly: 2448 return true; 2449 } 2450 llvm_unreachable("invalid frontend action"); 2451 } 2452 2453 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2454 FileManager &FileMgr, 2455 DiagnosticsEngine &Diags, 2456 frontend::ActionKind Action) { 2457 using namespace options; 2458 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2459 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2460 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2461 Opts.TokenCache = A->getValue(); 2462 else 2463 Opts.TokenCache = Opts.ImplicitPTHInclude; 2464 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2465 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2466 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2467 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 2468 2469 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2470 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2471 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2472 2473 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2474 StringRef Value(A->getValue()); 2475 size_t Comma = Value.find(','); 2476 unsigned Bytes = 0; 2477 unsigned EndOfLine = 0; 2478 2479 if (Comma == StringRef::npos || 2480 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2481 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2482 Diags.Report(diag::err_drv_preamble_format); 2483 else { 2484 Opts.PrecompiledPreambleBytes.first = Bytes; 2485 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2486 } 2487 } 2488 2489 // Add macros from the command line. 2490 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2491 if (A->getOption().matches(OPT_D)) 2492 Opts.addMacroDef(A->getValue()); 2493 else 2494 Opts.addMacroUndef(A->getValue()); 2495 } 2496 2497 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2498 2499 // Add the ordered list of -includes. 2500 for (const Arg *A : Args.filtered(OPT_include)) 2501 Opts.Includes.emplace_back(A->getValue()); 2502 2503 for (const Arg *A : Args.filtered(OPT_chain_include)) 2504 Opts.ChainedIncludes.emplace_back(A->getValue()); 2505 2506 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2507 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2508 2509 if (Split.second.empty()) { 2510 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2511 continue; 2512 } 2513 2514 Opts.addRemappedFile(Split.first, Split.second); 2515 } 2516 2517 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2518 StringRef Name = A->getValue(); 2519 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2520 .Case("libc++", ARCXX_libcxx) 2521 .Case("libstdc++", ARCXX_libstdcxx) 2522 .Case("none", ARCXX_nolib) 2523 .Default(~0U); 2524 if (Library == ~0U) 2525 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2526 else 2527 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2528 } 2529 2530 // Always avoid lexing editor placeholders when we're just running the 2531 // preprocessor as we never want to emit the 2532 // "editor placeholder in source file" error in PP only mode. 2533 if (isStrictlyPreprocessorAction(Action)) 2534 Opts.LexEditorPlaceholders = false; 2535 } 2536 2537 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2538 ArgList &Args, 2539 frontend::ActionKind Action) { 2540 using namespace options; 2541 2542 if (isStrictlyPreprocessorAction(Action)) 2543 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2544 else 2545 Opts.ShowCPP = 0; 2546 2547 Opts.ShowComments = Args.hasArg(OPT_C); 2548 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2549 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2550 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2551 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2552 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2553 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 2554 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2555 } 2556 2557 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2558 DiagnosticsEngine &Diags) { 2559 using namespace options; 2560 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2561 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2562 StringRef Value = A->getValue(); 2563 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2564 .Case("default", llvm::EABI::Default) 2565 .Case("4", llvm::EABI::EABI4) 2566 .Case("5", llvm::EABI::EABI5) 2567 .Case("gnu", llvm::EABI::GNU) 2568 .Default(llvm::EABI::Unknown); 2569 if (EABIVersion == llvm::EABI::Unknown) 2570 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2571 << Value; 2572 else 2573 Opts.EABIVersion = EABIVersion; 2574 } 2575 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2576 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2577 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2578 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2579 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2580 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2581 // Use the default target triple if unspecified. 2582 if (Opts.Triple.empty()) 2583 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2584 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2585 } 2586 2587 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2588 const char *const *ArgBegin, 2589 const char *const *ArgEnd, 2590 DiagnosticsEngine &Diags) { 2591 bool Success = true; 2592 2593 // Parse the arguments. 2594 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2595 const unsigned IncludedFlagsBitmask = options::CC1Option; 2596 unsigned MissingArgIndex, MissingArgCount; 2597 InputArgList Args = 2598 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2599 MissingArgCount, IncludedFlagsBitmask); 2600 LangOptions &LangOpts = *Res.getLangOpts(); 2601 2602 // Check for missing argument error. 2603 if (MissingArgCount) { 2604 Diags.Report(diag::err_drv_missing_argument) 2605 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2606 Success = false; 2607 } 2608 2609 // Issue errors on unknown arguments. 2610 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2611 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2612 Success = false; 2613 } 2614 2615 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2616 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2617 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2618 Success &= 2619 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2620 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2621 ParseCommentArgs(LangOpts.CommentOpts, Args); 2622 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2623 // FIXME: We shouldn't have to pass the DashX option around here 2624 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2625 LangOpts.IsHeaderFile); 2626 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2627 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2628 Res.getTargetOpts()); 2629 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2630 Res.getFileSystemOpts().WorkingDir); 2631 if (DashX.getFormat() == InputKind::Precompiled || 2632 DashX.getLanguage() == InputKind::LLVM_IR) { 2633 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2634 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2635 // what the input type is. 2636 if (Args.hasArg(OPT_fobjc_arc)) 2637 LangOpts.ObjCAutoRefCount = 1; 2638 // PIClevel and PIELevel are needed during code generation and this should be 2639 // set regardless of the input type. 2640 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2641 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2642 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2643 Diags, LangOpts.Sanitize); 2644 } else { 2645 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2646 // FIXME: Should we really be calling this for an InputKind::Asm input? 2647 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2648 Res.getPreprocessorOpts(), Diags); 2649 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2650 LangOpts.ObjCExceptions = 1; 2651 } 2652 2653 if (LangOpts.CUDA) { 2654 // During CUDA device-side compilation, the aux triple is the 2655 // triple used for host compilation. 2656 if (LangOpts.CUDAIsDevice) 2657 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2658 } 2659 2660 // Set the triple of the host for OpenMP device compile. 2661 if (LangOpts.OpenMPIsDevice) 2662 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2663 2664 // FIXME: Override value name discarding when asan or msan is used because the 2665 // backend passes depend on the name of the alloca in order to print out 2666 // names. 2667 Res.getCodeGenOpts().DiscardValueNames &= 2668 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2669 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2670 2671 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2672 // PCH file and find the original header name. Remove the need to do that in 2673 // ParsePreprocessorArgs and remove the FileManager 2674 // parameters from the function and the "FileManager.h" #include. 2675 FileManager FileMgr(Res.getFileSystemOpts()); 2676 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags, 2677 Res.getFrontendOpts().ProgramAction); 2678 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2679 Res.getFrontendOpts().ProgramAction); 2680 2681 // Turn on -Wspir-compat for SPIR target. 2682 llvm::Triple T(Res.getTargetOpts().Triple); 2683 auto Arch = T.getArch(); 2684 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2685 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2686 } 2687 return Success; 2688 } 2689 2690 std::string CompilerInvocation::getModuleHash() const { 2691 // Note: For QoI reasons, the things we use as a hash here should all be 2692 // dumped via the -module-info flag. 2693 using llvm::hash_code; 2694 using llvm::hash_value; 2695 using llvm::hash_combine; 2696 2697 // Start the signature with the compiler version. 2698 // FIXME: We'd rather use something more cryptographically sound than 2699 // CityHash, but this will do for now. 2700 hash_code code = hash_value(getClangFullRepositoryVersion()); 2701 2702 // Extend the signature with the language options 2703 #define LANGOPT(Name, Bits, Default, Description) \ 2704 code = hash_combine(code, LangOpts->Name); 2705 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2706 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2707 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2708 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2709 #include "clang/Basic/LangOptions.def" 2710 2711 for (StringRef Feature : LangOpts->ModuleFeatures) 2712 code = hash_combine(code, Feature); 2713 2714 // Extend the signature with the target options. 2715 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2716 TargetOpts->ABI); 2717 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2718 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2719 2720 // Extend the signature with preprocessor options. 2721 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2722 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2723 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2724 2725 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2726 I = getPreprocessorOpts().Macros.begin(), 2727 IEnd = getPreprocessorOpts().Macros.end(); 2728 I != IEnd; ++I) { 2729 // If we're supposed to ignore this macro for the purposes of modules, 2730 // don't put it into the hash. 2731 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2732 // Check whether we're ignoring this macro. 2733 StringRef MacroDef = I->first; 2734 if (hsOpts.ModulesIgnoreMacros.count( 2735 llvm::CachedHashString(MacroDef.split('=').first))) 2736 continue; 2737 } 2738 2739 code = hash_combine(code, I->first, I->second); 2740 } 2741 2742 // Extend the signature with the sysroot and other header search options. 2743 code = hash_combine(code, hsOpts.Sysroot, 2744 hsOpts.ModuleFormat, 2745 hsOpts.UseDebugInfo, 2746 hsOpts.UseBuiltinIncludes, 2747 hsOpts.UseStandardSystemIncludes, 2748 hsOpts.UseStandardCXXIncludes, 2749 hsOpts.UseLibcxx, 2750 hsOpts.ModulesValidateDiagnosticOptions); 2751 code = hash_combine(code, hsOpts.ResourceDir); 2752 2753 // Extend the signature with the user build path. 2754 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2755 2756 // Extend the signature with the module file extensions. 2757 const FrontendOptions &frontendOpts = getFrontendOpts(); 2758 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2759 code = ext->hashExtension(code); 2760 } 2761 2762 // Extend the signature with the enabled sanitizers, if at least one is 2763 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 2764 SanitizerSet SanHash = LangOpts->Sanitize; 2765 SanHash.clear(getPPTransparentSanitizers()); 2766 if (!SanHash.empty()) 2767 code = hash_combine(code, SanHash.Mask); 2768 2769 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2770 } 2771 2772 namespace clang { 2773 2774 template<typename IntTy> 2775 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2776 IntTy Default, 2777 DiagnosticsEngine *Diags) { 2778 IntTy Res = Default; 2779 if (Arg *A = Args.getLastArg(Id)) { 2780 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2781 if (Diags) 2782 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2783 << A->getValue(); 2784 } 2785 } 2786 return Res; 2787 } 2788 2789 2790 // Declared in clang/Frontend/Utils.h. 2791 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2792 DiagnosticsEngine *Diags) { 2793 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2794 } 2795 2796 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2797 uint64_t Default, 2798 DiagnosticsEngine *Diags) { 2799 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2800 } 2801 2802 void BuryPointer(const void *Ptr) { 2803 // This function may be called only a small fixed amount of times per each 2804 // invocation, otherwise we do actually have a leak which we want to report. 2805 // If this function is called more than kGraveYardMaxSize times, the pointers 2806 // will not be properly buried and a leak detector will report a leak, which 2807 // is what we want in such case. 2808 static const size_t kGraveYardMaxSize = 16; 2809 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2810 static std::atomic<unsigned> GraveYardSize; 2811 unsigned Idx = GraveYardSize++; 2812 if (Idx >= kGraveYardMaxSize) 2813 return; 2814 GraveYard[Idx] = Ptr; 2815 } 2816 2817 IntrusiveRefCntPtr<vfs::FileSystem> 2818 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2819 DiagnosticsEngine &Diags) { 2820 return createVFSFromCompilerInvocation(CI, Diags, vfs::getRealFileSystem()); 2821 } 2822 2823 IntrusiveRefCntPtr<vfs::FileSystem> 2824 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2825 DiagnosticsEngine &Diags, 2826 IntrusiveRefCntPtr<vfs::FileSystem> BaseFS) { 2827 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2828 return BaseFS; 2829 2830 IntrusiveRefCntPtr<vfs::OverlayFileSystem> Overlay( 2831 new vfs::OverlayFileSystem(BaseFS)); 2832 // earlier vfs files are on the bottom 2833 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2834 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2835 BaseFS->getBufferForFile(File); 2836 if (!Buffer) { 2837 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2838 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2839 } 2840 2841 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2842 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2843 if (!FS.get()) { 2844 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2845 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2846 } 2847 Overlay->pushOverlay(FS); 2848 } 2849 return Overlay; 2850 } 2851 } // end namespace clang 2852