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.SanitizeCoverageStackDepth = 799 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 800 Opts.SanitizeMemoryTrackOrigins = 801 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 802 Opts.SanitizeMemoryUseAfterDtor = 803 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 804 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 805 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 806 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 807 OPT_fno_sanitize_address_use_after_scope)) { 808 Opts.SanitizeAddressUseAfterScope = 809 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 810 } 811 Opts.SanitizeAddressGlobalsDeadStripping = 812 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 813 Opts.SSPBufferSize = 814 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 815 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 816 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 817 StringRef Val = A->getValue(); 818 unsigned StackAlignment = Opts.StackAlignment; 819 Val.getAsInteger(10, StackAlignment); 820 Opts.StackAlignment = StackAlignment; 821 } 822 823 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 824 StringRef Val = A->getValue(); 825 unsigned StackProbeSize = Opts.StackProbeSize; 826 Val.getAsInteger(0, StackProbeSize); 827 Opts.StackProbeSize = StackProbeSize; 828 } 829 830 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 831 StringRef Name = A->getValue(); 832 unsigned Method = llvm::StringSwitch<unsigned>(Name) 833 .Case("legacy", CodeGenOptions::Legacy) 834 .Case("non-legacy", CodeGenOptions::NonLegacy) 835 .Case("mixed", CodeGenOptions::Mixed) 836 .Default(~0U); 837 if (Method == ~0U) { 838 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 839 Success = false; 840 } else { 841 Opts.setObjCDispatchMethod( 842 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 843 } 844 } 845 846 Opts.EmulatedTLS = 847 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 848 849 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 850 StringRef Name = A->getValue(); 851 unsigned Model = llvm::StringSwitch<unsigned>(Name) 852 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 853 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 854 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 855 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 856 .Default(~0U); 857 if (Model == ~0U) { 858 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 859 Success = false; 860 } else { 861 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 862 } 863 } 864 865 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 866 StringRef Val = A->getValue(); 867 if (Val == "ieee") 868 Opts.FPDenormalMode = "ieee"; 869 else if (Val == "preserve-sign") 870 Opts.FPDenormalMode = "preserve-sign"; 871 else if (Val == "positive-zero") 872 Opts.FPDenormalMode = "positive-zero"; 873 else 874 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 875 } 876 877 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 878 if (A->getOption().matches(OPT_fpcc_struct_return)) { 879 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 880 } else { 881 assert(A->getOption().matches(OPT_freg_struct_return)); 882 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 883 } 884 } 885 886 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 887 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 888 bool NeedLocTracking = false; 889 890 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 891 if (!Opts.OptRecordFile.empty()) 892 NeedLocTracking = true; 893 894 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 895 Opts.OptimizationRemarkPattern = 896 GenerateOptimizationRemarkRegex(Diags, Args, A); 897 NeedLocTracking = true; 898 } 899 900 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 901 Opts.OptimizationRemarkMissedPattern = 902 GenerateOptimizationRemarkRegex(Diags, Args, A); 903 NeedLocTracking = true; 904 } 905 906 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 907 Opts.OptimizationRemarkAnalysisPattern = 908 GenerateOptimizationRemarkRegex(Diags, Args, A); 909 NeedLocTracking = true; 910 } 911 912 Opts.DiagnosticsWithHotness = 913 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 914 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 915 bool UsingProfile = UsingSampleProfile || 916 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 917 918 if (Opts.DiagnosticsWithHotness && !UsingProfile) 919 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 920 << "-fdiagnostics-show-hotness"; 921 922 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 923 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 924 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 925 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 926 << "-fdiagnostics-hotness-threshold="; 927 928 // If the user requested to use a sample profile for PGO, then the 929 // backend will need to track source location information so the profile 930 // can be incorporated into the IR. 931 if (UsingSampleProfile) 932 NeedLocTracking = true; 933 934 // If the user requested a flag that requires source locations available in 935 // the backend, make sure that the backend tracks source location information. 936 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 937 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 938 939 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 940 941 // Parse -fsanitize-recover= arguments. 942 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 943 parseSanitizerKinds("-fsanitize-recover=", 944 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 945 Opts.SanitizeRecover); 946 parseSanitizerKinds("-fsanitize-trap=", 947 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 948 Opts.SanitizeTrap); 949 950 Opts.CudaGpuBinaryFileNames = 951 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 952 953 Opts.Backchain = Args.hasArg(OPT_mbackchain); 954 955 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 956 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 957 958 return Success; 959 } 960 961 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 962 ArgList &Args) { 963 using namespace options; 964 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 965 Opts.Targets = Args.getAllArgValues(OPT_MT); 966 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 967 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 968 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 969 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 970 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 971 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 972 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 973 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 974 Opts.ModuleDependencyOutputDir = 975 Args.getLastArgValue(OPT_module_dependency_dir); 976 if (Args.hasArg(OPT_MV)) 977 Opts.OutputFormat = DependencyOutputFormat::NMake; 978 // Add sanitizer blacklists as extra dependencies. 979 // They won't be discovered by the regular preprocessor, so 980 // we let make / ninja to know about this implicit dependency. 981 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 982 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 983 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 984 ModuleFiles.end()); 985 } 986 987 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 988 // Color diagnostics default to auto ("on" if terminal supports) in the driver 989 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 990 // Support both clang's -f[no-]color-diagnostics and gcc's 991 // -f[no-]diagnostics-colors[=never|always|auto]. 992 enum { 993 Colors_On, 994 Colors_Off, 995 Colors_Auto 996 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 997 for (Arg *A : Args) { 998 const Option &O = A->getOption(); 999 if (O.matches(options::OPT_fcolor_diagnostics) || 1000 O.matches(options::OPT_fdiagnostics_color)) { 1001 ShowColors = Colors_On; 1002 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1003 O.matches(options::OPT_fno_diagnostics_color)) { 1004 ShowColors = Colors_Off; 1005 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1006 StringRef Value(A->getValue()); 1007 if (Value == "always") 1008 ShowColors = Colors_On; 1009 else if (Value == "never") 1010 ShowColors = Colors_Off; 1011 else if (Value == "auto") 1012 ShowColors = Colors_Auto; 1013 } 1014 } 1015 return ShowColors == Colors_On || 1016 (ShowColors == Colors_Auto && 1017 llvm::sys::Process::StandardErrHasColors()); 1018 } 1019 1020 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1021 DiagnosticsEngine *Diags, 1022 bool DefaultDiagColor, bool DefaultShowOpt) { 1023 using namespace options; 1024 bool Success = true; 1025 1026 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1027 if (Arg *A = 1028 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1029 Opts.DiagnosticSerializationFile = A->getValue(); 1030 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1031 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1032 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1033 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1034 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1035 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1036 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1037 OPT_fno_show_column, 1038 /*Default=*/true); 1039 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1040 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1041 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1042 Opts.ShowOptionNames = 1043 Args.hasFlag(OPT_fdiagnostics_show_option, 1044 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1045 1046 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1047 1048 // Default behavior is to not to show note include stacks. 1049 Opts.ShowNoteIncludeStack = false; 1050 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1051 OPT_fno_diagnostics_show_note_include_stack)) 1052 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1053 Opts.ShowNoteIncludeStack = true; 1054 1055 StringRef ShowOverloads = 1056 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1057 if (ShowOverloads == "best") 1058 Opts.setShowOverloads(Ovl_Best); 1059 else if (ShowOverloads == "all") 1060 Opts.setShowOverloads(Ovl_All); 1061 else { 1062 Success = false; 1063 if (Diags) 1064 Diags->Report(diag::err_drv_invalid_value) 1065 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1066 << ShowOverloads; 1067 } 1068 1069 StringRef ShowCategory = 1070 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1071 if (ShowCategory == "none") 1072 Opts.ShowCategories = 0; 1073 else if (ShowCategory == "id") 1074 Opts.ShowCategories = 1; 1075 else if (ShowCategory == "name") 1076 Opts.ShowCategories = 2; 1077 else { 1078 Success = false; 1079 if (Diags) 1080 Diags->Report(diag::err_drv_invalid_value) 1081 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1082 << ShowCategory; 1083 } 1084 1085 StringRef Format = 1086 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1087 if (Format == "clang") 1088 Opts.setFormat(DiagnosticOptions::Clang); 1089 else if (Format == "msvc") 1090 Opts.setFormat(DiagnosticOptions::MSVC); 1091 else if (Format == "msvc-fallback") { 1092 Opts.setFormat(DiagnosticOptions::MSVC); 1093 Opts.CLFallbackMode = true; 1094 } else if (Format == "vi") 1095 Opts.setFormat(DiagnosticOptions::Vi); 1096 else { 1097 Success = false; 1098 if (Diags) 1099 Diags->Report(diag::err_drv_invalid_value) 1100 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1101 << Format; 1102 } 1103 1104 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1105 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1106 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1107 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1108 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1109 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1110 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1111 Diags, DiagMask); 1112 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1113 DiagMask = DiagnosticLevelMask::All; 1114 Opts.setVerifyIgnoreUnexpected(DiagMask); 1115 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1116 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1117 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1118 Opts.MacroBacktraceLimit = 1119 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1120 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1121 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1122 Args, OPT_ftemplate_backtrace_limit, 1123 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1124 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1125 Args, OPT_fconstexpr_backtrace_limit, 1126 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1127 Opts.SpellCheckingLimit = getLastArgIntValue( 1128 Args, OPT_fspell_checking_limit, 1129 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1130 Opts.SnippetLineLimit = getLastArgIntValue( 1131 Args, OPT_fcaret_diagnostics_max_lines, 1132 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1133 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1134 DiagnosticOptions::DefaultTabStop, Diags); 1135 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1136 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1137 if (Diags) 1138 Diags->Report(diag::warn_ignoring_ftabstop_value) 1139 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1140 } 1141 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1142 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1143 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1144 1145 return Success; 1146 } 1147 1148 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1149 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1150 } 1151 1152 /// Parse the argument to the -ftest-module-file-extension 1153 /// command-line argument. 1154 /// 1155 /// \returns true on error, false on success. 1156 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1157 std::string &BlockName, 1158 unsigned &MajorVersion, 1159 unsigned &MinorVersion, 1160 bool &Hashed, 1161 std::string &UserInfo) { 1162 SmallVector<StringRef, 5> Args; 1163 Arg.split(Args, ':', 5); 1164 if (Args.size() < 5) 1165 return true; 1166 1167 BlockName = Args[0]; 1168 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1169 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1170 if (Args[3].getAsInteger(2, Hashed)) return true; 1171 if (Args.size() > 4) 1172 UserInfo = Args[4]; 1173 return false; 1174 } 1175 1176 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1177 DiagnosticsEngine &Diags, 1178 bool &IsHeaderFile) { 1179 using namespace options; 1180 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1181 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1182 switch (A->getOption().getID()) { 1183 default: 1184 llvm_unreachable("Invalid option in group!"); 1185 case OPT_ast_list: 1186 Opts.ProgramAction = frontend::ASTDeclList; break; 1187 case OPT_ast_dump: 1188 case OPT_ast_dump_all: 1189 case OPT_ast_dump_lookups: 1190 Opts.ProgramAction = frontend::ASTDump; break; 1191 case OPT_ast_print: 1192 Opts.ProgramAction = frontend::ASTPrint; break; 1193 case OPT_ast_view: 1194 Opts.ProgramAction = frontend::ASTView; break; 1195 case OPT_dump_raw_tokens: 1196 Opts.ProgramAction = frontend::DumpRawTokens; break; 1197 case OPT_dump_tokens: 1198 Opts.ProgramAction = frontend::DumpTokens; break; 1199 case OPT_S: 1200 Opts.ProgramAction = frontend::EmitAssembly; break; 1201 case OPT_emit_llvm_bc: 1202 Opts.ProgramAction = frontend::EmitBC; break; 1203 case OPT_emit_html: 1204 Opts.ProgramAction = frontend::EmitHTML; break; 1205 case OPT_emit_llvm: 1206 Opts.ProgramAction = frontend::EmitLLVM; break; 1207 case OPT_emit_llvm_only: 1208 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1209 case OPT_emit_codegen_only: 1210 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1211 case OPT_emit_obj: 1212 Opts.ProgramAction = frontend::EmitObj; break; 1213 case OPT_fixit_EQ: 1214 Opts.FixItSuffix = A->getValue(); 1215 // fall-through! 1216 case OPT_fixit: 1217 Opts.ProgramAction = frontend::FixIt; break; 1218 case OPT_emit_module: 1219 Opts.ProgramAction = frontend::GenerateModule; break; 1220 case OPT_emit_module_interface: 1221 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1222 case OPT_emit_pch: 1223 Opts.ProgramAction = frontend::GeneratePCH; break; 1224 case OPT_emit_pth: 1225 Opts.ProgramAction = frontend::GeneratePTH; break; 1226 case OPT_init_only: 1227 Opts.ProgramAction = frontend::InitOnly; break; 1228 case OPT_fsyntax_only: 1229 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1230 case OPT_module_file_info: 1231 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1232 case OPT_verify_pch: 1233 Opts.ProgramAction = frontend::VerifyPCH; break; 1234 case OPT_print_decl_contexts: 1235 Opts.ProgramAction = frontend::PrintDeclContext; break; 1236 case OPT_print_preamble: 1237 Opts.ProgramAction = frontend::PrintPreamble; break; 1238 case OPT_E: 1239 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1240 case OPT_rewrite_macros: 1241 Opts.ProgramAction = frontend::RewriteMacros; break; 1242 case OPT_rewrite_objc: 1243 Opts.ProgramAction = frontend::RewriteObjC; break; 1244 case OPT_rewrite_test: 1245 Opts.ProgramAction = frontend::RewriteTest; break; 1246 case OPT_analyze: 1247 Opts.ProgramAction = frontend::RunAnalysis; break; 1248 case OPT_migrate: 1249 Opts.ProgramAction = frontend::MigrateSource; break; 1250 case OPT_Eonly: 1251 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1252 } 1253 } 1254 1255 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1256 Opts.Plugins.emplace_back(A->getValue(0)); 1257 Opts.ProgramAction = frontend::PluginAction; 1258 Opts.ActionName = A->getValue(); 1259 } 1260 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1261 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1262 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1263 1264 for (const std::string &Arg : 1265 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1266 std::string BlockName; 1267 unsigned MajorVersion; 1268 unsigned MinorVersion; 1269 bool Hashed; 1270 std::string UserInfo; 1271 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1272 MinorVersion, Hashed, UserInfo)) { 1273 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1274 1275 continue; 1276 } 1277 1278 // Add the testing module file extension. 1279 Opts.ModuleFileExtensions.push_back( 1280 std::make_shared<TestModuleFileExtension>( 1281 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1282 } 1283 1284 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1285 Opts.CodeCompletionAt = 1286 ParsedSourceLocation::FromString(A->getValue()); 1287 if (Opts.CodeCompletionAt.FileName.empty()) 1288 Diags.Report(diag::err_drv_invalid_value) 1289 << A->getAsString(Args) << A->getValue(); 1290 } 1291 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1292 1293 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1294 Opts.Plugins = Args.getAllArgValues(OPT_load); 1295 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1296 Opts.ShowHelp = Args.hasArg(OPT_help); 1297 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1298 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1299 Opts.ShowVersion = Args.hasArg(OPT_version); 1300 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1301 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1302 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1303 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1304 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1305 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1306 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1307 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1308 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1309 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1310 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1311 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1312 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1313 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 1314 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1315 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1316 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1317 1318 Opts.CodeCompleteOpts.IncludeMacros 1319 = Args.hasArg(OPT_code_completion_macros); 1320 Opts.CodeCompleteOpts.IncludeCodePatterns 1321 = Args.hasArg(OPT_code_completion_patterns); 1322 Opts.CodeCompleteOpts.IncludeGlobals 1323 = !Args.hasArg(OPT_no_code_completion_globals); 1324 Opts.CodeCompleteOpts.IncludeBriefComments 1325 = Args.hasArg(OPT_code_completion_brief_comments); 1326 1327 Opts.OverrideRecordLayoutsFile 1328 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1329 Opts.AuxTriple = 1330 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1331 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1332 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1333 1334 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1335 OPT_arcmt_modify, 1336 OPT_arcmt_migrate)) { 1337 switch (A->getOption().getID()) { 1338 default: 1339 llvm_unreachable("missed a case"); 1340 case OPT_arcmt_check: 1341 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1342 break; 1343 case OPT_arcmt_modify: 1344 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1345 break; 1346 case OPT_arcmt_migrate: 1347 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1348 break; 1349 } 1350 } 1351 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1352 Opts.ARCMTMigrateReportOut 1353 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1354 Opts.ARCMTMigrateEmitARCErrors 1355 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1356 1357 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1358 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1359 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1360 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1361 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1362 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1363 if (Args.hasArg(OPT_objcmt_migrate_property)) 1364 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1365 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1366 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1367 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1368 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1369 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1370 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1371 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1372 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1373 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1374 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1375 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1376 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1377 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1378 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1379 if (Args.hasArg(OPT_objcmt_atomic_property)) 1380 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1381 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1382 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1383 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1384 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1385 if (Args.hasArg(OPT_objcmt_migrate_all)) 1386 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1387 1388 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1389 1390 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1391 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1392 Diags.Report(diag::err_drv_argument_not_allowed_with) 1393 << "ARC migration" << "ObjC migration"; 1394 } 1395 1396 InputKind DashX(InputKind::Unknown); 1397 if (const Arg *A = Args.getLastArg(OPT_x)) { 1398 StringRef XValue = A->getValue(); 1399 1400 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1401 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1402 bool Preprocessed = XValue.consume_back("-cpp-output"); 1403 bool ModuleMap = XValue.consume_back("-module-map"); 1404 IsHeaderFile = 1405 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1406 1407 // Principal languages. 1408 DashX = llvm::StringSwitch<InputKind>(XValue) 1409 .Case("c", InputKind::C) 1410 .Case("cl", InputKind::OpenCL) 1411 .Case("cuda", InputKind::CUDA) 1412 .Case("c++", InputKind::CXX) 1413 .Case("objective-c", InputKind::ObjC) 1414 .Case("objective-c++", InputKind::ObjCXX) 1415 .Case("renderscript", InputKind::RenderScript) 1416 .Default(InputKind::Unknown); 1417 1418 // "objc[++]-cpp-output" is an acceptable synonym for 1419 // "objective-c[++]-cpp-output". 1420 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1421 DashX = llvm::StringSwitch<InputKind>(XValue) 1422 .Case("objc", InputKind::ObjC) 1423 .Case("objc++", InputKind::ObjCXX) 1424 .Default(InputKind::Unknown); 1425 1426 // Some special cases cannot be combined with suffixes. 1427 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1428 DashX = llvm::StringSwitch<InputKind>(XValue) 1429 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1430 .Case("assembler-with-cpp", InputKind::Asm) 1431 .Cases("ast", "pcm", 1432 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1433 .Case("ir", InputKind::LLVM_IR) 1434 .Default(InputKind::Unknown); 1435 1436 if (DashX.isUnknown()) 1437 Diags.Report(diag::err_drv_invalid_value) 1438 << A->getAsString(Args) << A->getValue(); 1439 1440 if (Preprocessed) 1441 DashX = DashX.getPreprocessed(); 1442 if (ModuleMap) 1443 DashX = DashX.withFormat(InputKind::ModuleMap); 1444 } 1445 1446 // '-' is the default input if none is given. 1447 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1448 Opts.Inputs.clear(); 1449 if (Inputs.empty()) 1450 Inputs.push_back("-"); 1451 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1452 InputKind IK = DashX; 1453 if (IK.isUnknown()) { 1454 IK = FrontendOptions::getInputKindForExtension( 1455 StringRef(Inputs[i]).rsplit('.').second); 1456 // FIXME: Warn on this? 1457 if (IK.isUnknown()) 1458 IK = InputKind::C; 1459 // FIXME: Remove this hack. 1460 if (i == 0) 1461 DashX = IK; 1462 } 1463 1464 // The -emit-module action implicitly takes a module map. 1465 if (Opts.ProgramAction == frontend::GenerateModule && 1466 IK.getFormat() == InputKind::Source) 1467 IK = IK.withFormat(InputKind::ModuleMap); 1468 1469 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1470 } 1471 1472 return DashX; 1473 } 1474 1475 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1476 void *MainAddr) { 1477 std::string ClangExecutable = 1478 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1479 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1480 1481 // Compute the path to the resource directory. 1482 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1483 SmallString<128> P(Dir); 1484 if (ClangResourceDir != "") 1485 llvm::sys::path::append(P, ClangResourceDir); 1486 else 1487 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1488 "clang", CLANG_VERSION_STRING); 1489 1490 return P.str(); 1491 } 1492 1493 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1494 const std::string &WorkingDir) { 1495 using namespace options; 1496 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1497 Opts.Verbose = Args.hasArg(OPT_v); 1498 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1499 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1500 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1501 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1502 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1503 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1504 1505 // Canonicalize -fmodules-cache-path before storing it. 1506 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1507 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1508 if (WorkingDir.empty()) 1509 llvm::sys::fs::make_absolute(P); 1510 else 1511 llvm::sys::fs::make_absolute(WorkingDir, P); 1512 } 1513 llvm::sys::path::remove_dots(P); 1514 Opts.ModuleCachePath = P.str(); 1515 1516 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1517 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1518 Opts.AddPrebuiltModulePath(A->getValue()); 1519 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1520 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1521 Opts.ModulesValidateDiagnosticOptions = 1522 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1523 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1524 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1525 Opts.ModuleCachePruneInterval = 1526 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1527 Opts.ModuleCachePruneAfter = 1528 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1529 Opts.ModulesValidateOncePerBuildSession = 1530 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1531 Opts.BuildSessionTimestamp = 1532 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1533 Opts.ModulesValidateSystemHeaders = 1534 Args.hasArg(OPT_fmodules_validate_system_headers); 1535 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1536 Opts.ModuleFormat = A->getValue(); 1537 1538 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1539 StringRef MacroDef = A->getValue(); 1540 Opts.ModulesIgnoreMacros.insert( 1541 llvm::CachedHashString(MacroDef.split('=').first)); 1542 } 1543 1544 // Add -I..., -F..., and -index-header-map options in order. 1545 bool IsIndexHeaderMap = false; 1546 bool IsSysrootSpecified = 1547 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1548 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1549 if (A->getOption().matches(OPT_index_header_map)) { 1550 // -index-header-map applies to the next -I or -F. 1551 IsIndexHeaderMap = true; 1552 continue; 1553 } 1554 1555 frontend::IncludeDirGroup Group = 1556 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1557 1558 bool IsFramework = A->getOption().matches(OPT_F); 1559 std::string Path = A->getValue(); 1560 1561 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1562 SmallString<32> Buffer; 1563 llvm::sys::path::append(Buffer, Opts.Sysroot, 1564 llvm::StringRef(A->getValue()).substr(1)); 1565 Path = Buffer.str(); 1566 } 1567 1568 Opts.AddPath(Path, Group, IsFramework, 1569 /*IgnoreSysroot*/ true); 1570 IsIndexHeaderMap = false; 1571 } 1572 1573 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1574 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1575 for (const Arg *A : 1576 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1577 if (A->getOption().matches(OPT_iprefix)) 1578 Prefix = A->getValue(); 1579 else if (A->getOption().matches(OPT_iwithprefix)) 1580 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1581 else 1582 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1583 } 1584 1585 for (const Arg *A : Args.filtered(OPT_idirafter)) 1586 Opts.AddPath(A->getValue(), frontend::After, false, true); 1587 for (const Arg *A : Args.filtered(OPT_iquote)) 1588 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1589 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1590 Opts.AddPath(A->getValue(), frontend::System, false, 1591 !A->getOption().matches(OPT_iwithsysroot)); 1592 for (const Arg *A : Args.filtered(OPT_iframework)) 1593 Opts.AddPath(A->getValue(), frontend::System, true, true); 1594 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot)) 1595 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1596 /*IgnoreSysRoot=*/false); 1597 1598 // Add the paths for the various language specific isystem flags. 1599 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1600 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1601 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1602 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1603 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1604 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1605 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1606 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1607 1608 // Add the internal paths from a driver that detects standard include paths. 1609 for (const Arg *A : 1610 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1611 frontend::IncludeDirGroup Group = frontend::System; 1612 if (A->getOption().matches(OPT_internal_externc_isystem)) 1613 Group = frontend::ExternCSystem; 1614 Opts.AddPath(A->getValue(), Group, false, true); 1615 } 1616 1617 // Add the path prefixes which are implicitly treated as being system headers. 1618 for (const Arg *A : 1619 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1620 Opts.AddSystemHeaderPrefix( 1621 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1622 1623 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1624 Opts.AddVFSOverlayFile(A->getValue()); 1625 } 1626 1627 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1628 const llvm::Triple &T, 1629 PreprocessorOptions &PPOpts, 1630 LangStandard::Kind LangStd) { 1631 // Set some properties which depend solely on the input kind; it would be nice 1632 // to move these to the language standard, and have the driver resolve the 1633 // input kind + language standard. 1634 // 1635 // FIXME: Perhaps a better model would be for a single source file to have 1636 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 1637 // simultaneously active? 1638 if (IK.getLanguage() == InputKind::Asm) { 1639 Opts.AsmPreprocessor = 1; 1640 } else if (IK.isObjectiveC()) { 1641 Opts.ObjC1 = Opts.ObjC2 = 1; 1642 } 1643 1644 if (LangStd == LangStandard::lang_unspecified) { 1645 // Based on the base language, pick one. 1646 switch (IK.getLanguage()) { 1647 case InputKind::Unknown: 1648 case InputKind::LLVM_IR: 1649 llvm_unreachable("Invalid input kind!"); 1650 case InputKind::OpenCL: 1651 LangStd = LangStandard::lang_opencl10; 1652 break; 1653 case InputKind::CUDA: 1654 LangStd = LangStandard::lang_cuda; 1655 break; 1656 case InputKind::Asm: 1657 case InputKind::C: 1658 // The PS4 uses C99 as the default C standard. 1659 if (T.isPS4()) 1660 LangStd = LangStandard::lang_gnu99; 1661 else 1662 LangStd = LangStandard::lang_gnu11; 1663 break; 1664 case InputKind::ObjC: 1665 LangStd = LangStandard::lang_gnu11; 1666 break; 1667 case InputKind::CXX: 1668 case InputKind::ObjCXX: 1669 // The PS4 uses C++11 as the default C++ standard. 1670 if (T.isPS4()) 1671 LangStd = LangStandard::lang_gnucxx11; 1672 else 1673 LangStd = LangStandard::lang_gnucxx98; 1674 break; 1675 case InputKind::RenderScript: 1676 LangStd = LangStandard::lang_c99; 1677 break; 1678 } 1679 } 1680 1681 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1682 Opts.LineComment = Std.hasLineComments(); 1683 Opts.C99 = Std.isC99(); 1684 Opts.C11 = Std.isC11(); 1685 Opts.CPlusPlus = Std.isCPlusPlus(); 1686 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1687 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1688 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1689 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 1690 Opts.Digraphs = Std.hasDigraphs(); 1691 Opts.GNUMode = Std.isGNUMode(); 1692 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 1693 Opts.HexFloats = Std.hasHexFloats(); 1694 Opts.ImplicitInt = Std.hasImplicitInt(); 1695 1696 // Set OpenCL Version. 1697 Opts.OpenCL = Std.isOpenCL(); 1698 if (LangStd == LangStandard::lang_opencl10) 1699 Opts.OpenCLVersion = 100; 1700 else if (LangStd == LangStandard::lang_opencl11) 1701 Opts.OpenCLVersion = 110; 1702 else if (LangStd == LangStandard::lang_opencl12) 1703 Opts.OpenCLVersion = 120; 1704 else if (LangStd == LangStandard::lang_opencl20) 1705 Opts.OpenCLVersion = 200; 1706 1707 // OpenCL has some additional defaults. 1708 if (Opts.OpenCL) { 1709 Opts.AltiVec = 0; 1710 Opts.ZVector = 0; 1711 Opts.LaxVectorConversions = 0; 1712 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 1713 Opts.NativeHalfType = 1; 1714 Opts.NativeHalfArgsAndReturns = 1; 1715 // Include default header file for OpenCL. 1716 if (Opts.IncludeDefaultHeader) { 1717 PPOpts.Includes.push_back("opencl-c.h"); 1718 } 1719 } 1720 1721 Opts.CUDA = IK.getLanguage() == InputKind::CUDA; 1722 if (Opts.CUDA) 1723 // Set default FP_CONTRACT to FAST. 1724 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 1725 1726 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 1727 if (Opts.RenderScript) { 1728 Opts.NativeHalfType = 1; 1729 Opts.NativeHalfArgsAndReturns = 1; 1730 } 1731 1732 // OpenCL and C++ both have bool, true, false keywords. 1733 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1734 1735 // OpenCL has half keyword 1736 Opts.Half = Opts.OpenCL; 1737 1738 // C++ has wchar_t keyword. 1739 Opts.WChar = Opts.CPlusPlus; 1740 1741 Opts.GNUKeywords = Opts.GNUMode; 1742 Opts.CXXOperatorNames = Opts.CPlusPlus; 1743 1744 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1745 1746 Opts.DollarIdents = !Opts.AsmPreprocessor; 1747 } 1748 1749 /// Attempt to parse a visibility value out of the given argument. 1750 static Visibility parseVisibility(Arg *arg, ArgList &args, 1751 DiagnosticsEngine &diags) { 1752 StringRef value = arg->getValue(); 1753 if (value == "default") { 1754 return DefaultVisibility; 1755 } else if (value == "hidden" || value == "internal") { 1756 return HiddenVisibility; 1757 } else if (value == "protected") { 1758 // FIXME: diagnose if target does not support protected visibility 1759 return ProtectedVisibility; 1760 } 1761 1762 diags.Report(diag::err_drv_invalid_value) 1763 << arg->getAsString(args) << value; 1764 return DefaultVisibility; 1765 } 1766 1767 /// Check if input file kind and language standard are compatible. 1768 static bool IsInputCompatibleWithStandard(InputKind IK, 1769 const LangStandard &S) { 1770 switch (IK.getLanguage()) { 1771 case InputKind::Unknown: 1772 case InputKind::LLVM_IR: 1773 llvm_unreachable("should not parse language flags for this input"); 1774 1775 case InputKind::C: 1776 case InputKind::ObjC: 1777 case InputKind::RenderScript: 1778 return S.getLanguage() == InputKind::C; 1779 1780 case InputKind::OpenCL: 1781 return S.getLanguage() == InputKind::OpenCL; 1782 1783 case InputKind::CXX: 1784 case InputKind::ObjCXX: 1785 return S.getLanguage() == InputKind::CXX; 1786 1787 case InputKind::CUDA: 1788 // FIXME: What -std= values should be permitted for CUDA compilations? 1789 return S.getLanguage() == InputKind::CUDA || 1790 S.getLanguage() == InputKind::CXX; 1791 1792 case InputKind::Asm: 1793 // Accept (and ignore) all -std= values. 1794 // FIXME: The -std= value is not ignored; it affects the tokenization 1795 // and preprocessing rules if we're preprocessing this asm input. 1796 return true; 1797 } 1798 1799 llvm_unreachable("unexpected input language"); 1800 } 1801 1802 /// Get language name for given input kind. 1803 static const StringRef GetInputKindName(InputKind IK) { 1804 switch (IK.getLanguage()) { 1805 case InputKind::C: 1806 return "C"; 1807 case InputKind::ObjC: 1808 return "Objective-C"; 1809 case InputKind::CXX: 1810 return "C++"; 1811 case InputKind::ObjCXX: 1812 return "Objective-C++"; 1813 case InputKind::OpenCL: 1814 return "OpenCL"; 1815 case InputKind::CUDA: 1816 return "CUDA"; 1817 case InputKind::RenderScript: 1818 return "RenderScript"; 1819 1820 case InputKind::Asm: 1821 return "Asm"; 1822 case InputKind::LLVM_IR: 1823 return "LLVM IR"; 1824 1825 case InputKind::Unknown: 1826 break; 1827 } 1828 llvm_unreachable("unknown input language"); 1829 } 1830 1831 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1832 const TargetOptions &TargetOpts, 1833 PreprocessorOptions &PPOpts, 1834 DiagnosticsEngine &Diags) { 1835 // FIXME: Cleanup per-file based stuff. 1836 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1837 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1838 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1839 #define LANGSTANDARD(id, name, lang, desc, features) \ 1840 .Case(name, LangStandard::lang_##id) 1841 #define LANGSTANDARD_ALIAS(id, alias) \ 1842 .Case(alias, LangStandard::lang_##id) 1843 #include "clang/Frontend/LangStandards.def" 1844 .Default(LangStandard::lang_unspecified); 1845 if (LangStd == LangStandard::lang_unspecified) { 1846 Diags.Report(diag::err_drv_invalid_value) 1847 << A->getAsString(Args) << A->getValue(); 1848 // Report supported standards with short description. 1849 for (unsigned KindValue = 0; 1850 KindValue != LangStandard::lang_unspecified; 1851 ++KindValue) { 1852 const LangStandard &Std = LangStandard::getLangStandardForKind( 1853 static_cast<LangStandard::Kind>(KindValue)); 1854 if (IsInputCompatibleWithStandard(IK, Std)) { 1855 auto Diag = Diags.Report(diag::note_drv_use_standard); 1856 Diag << Std.getName() << Std.getDescription(); 1857 unsigned NumAliases = 0; 1858 #define LANGSTANDARD(id, name, lang, desc, features) 1859 #define LANGSTANDARD_ALIAS(id, alias) \ 1860 if (KindValue == LangStandard::lang_##id) ++NumAliases; 1861 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1862 #include "clang/Frontend/LangStandards.def" 1863 Diag << NumAliases; 1864 #define LANGSTANDARD(id, name, lang, desc, features) 1865 #define LANGSTANDARD_ALIAS(id, alias) \ 1866 if (KindValue == LangStandard::lang_##id) Diag << alias; 1867 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1868 #include "clang/Frontend/LangStandards.def" 1869 } 1870 } 1871 } else { 1872 // Valid standard, check to make sure language and standard are 1873 // compatible. 1874 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1875 if (!IsInputCompatibleWithStandard(IK, Std)) { 1876 Diags.Report(diag::err_drv_argument_not_allowed_with) 1877 << A->getAsString(Args) << GetInputKindName(IK); 1878 } 1879 } 1880 } 1881 1882 // -cl-std only applies for OpenCL language standards. 1883 // Override the -std option in this case. 1884 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1885 LangStandard::Kind OpenCLLangStd 1886 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1887 .Cases("cl", "CL", LangStandard::lang_opencl10) 1888 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1889 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1890 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1891 .Default(LangStandard::lang_unspecified); 1892 1893 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1894 Diags.Report(diag::err_drv_invalid_value) 1895 << A->getAsString(Args) << A->getValue(); 1896 } 1897 else 1898 LangStd = OpenCLLangStd; 1899 } 1900 1901 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1902 1903 llvm::Triple T(TargetOpts.Triple); 1904 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1905 1906 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1907 // This option should be deprecated for CL > 1.0 because 1908 // this option was added for compatibility with OpenCL 1.0. 1909 if (Args.getLastArg(OPT_cl_strict_aliasing) 1910 && Opts.OpenCLVersion > 100) { 1911 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1912 std::string(".") + 1913 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1914 Diags.Report(diag::warn_option_invalid_ocl_version) 1915 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1916 } 1917 1918 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1919 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1920 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1921 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1922 // name, as it doesn't seem a useful distinction. 1923 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1924 Opts.GNUKeywords); 1925 1926 if (Args.hasArg(OPT_fno_operator_names)) 1927 Opts.CXXOperatorNames = 0; 1928 1929 if (Args.hasArg(OPT_fcuda_is_device)) 1930 Opts.CUDAIsDevice = 1; 1931 1932 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1933 Opts.CUDAAllowVariadicFunctions = 1; 1934 1935 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1936 Opts.CUDAHostDeviceConstexpr = 0; 1937 1938 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1939 Opts.CUDADeviceFlushDenormalsToZero = 1; 1940 1941 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1942 Opts.CUDADeviceApproxTranscendentals = 1; 1943 1944 if (Opts.ObjC1) { 1945 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1946 StringRef value = arg->getValue(); 1947 if (Opts.ObjCRuntime.tryParse(value)) 1948 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1949 } 1950 1951 if (Args.hasArg(OPT_fobjc_gc_only)) 1952 Opts.setGC(LangOptions::GCOnly); 1953 else if (Args.hasArg(OPT_fobjc_gc)) 1954 Opts.setGC(LangOptions::HybridGC); 1955 else if (Args.hasArg(OPT_fobjc_arc)) { 1956 Opts.ObjCAutoRefCount = 1; 1957 if (!Opts.ObjCRuntime.allowsARC()) 1958 Diags.Report(diag::err_arc_unsupported_on_runtime); 1959 } 1960 1961 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 1962 // whether the feature is actually enabled. This is predominantly 1963 // determined by -fobjc-runtime, but we allow it to be overridden 1964 // from the command line for testing purposes. 1965 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1966 Opts.ObjCWeakRuntime = 1; 1967 else 1968 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 1969 1970 // ObjCWeak determines whether __weak is actually enabled. 1971 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 1972 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 1973 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 1974 assert(!Opts.ObjCWeak); 1975 } else if (Opts.getGC() != LangOptions::NonGC) { 1976 Diags.Report(diag::err_objc_weak_with_gc); 1977 } else if (!Opts.ObjCWeakRuntime) { 1978 Diags.Report(diag::err_objc_weak_unsupported); 1979 } else { 1980 Opts.ObjCWeak = 1; 1981 } 1982 } else if (Opts.ObjCAutoRefCount) { 1983 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 1984 } 1985 1986 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1987 Opts.ObjCInferRelatedResultType = 0; 1988 1989 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1990 Opts.ObjCSubscriptingLegacyRuntime = 1991 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1992 } 1993 1994 if (Args.hasArg(OPT_fgnu89_inline)) { 1995 if (Opts.CPlusPlus) 1996 Diags.Report(diag::err_drv_argument_not_allowed_with) 1997 << "-fgnu89-inline" << GetInputKindName(IK); 1998 else 1999 Opts.GNUInline = 1; 2000 } 2001 2002 if (Args.hasArg(OPT_fapple_kext)) { 2003 if (!Opts.CPlusPlus) 2004 Diags.Report(diag::warn_c_kext); 2005 else 2006 Opts.AppleKext = 1; 2007 } 2008 2009 if (Args.hasArg(OPT_print_ivar_layout)) 2010 Opts.ObjCGCBitmapPrint = 1; 2011 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2012 Opts.NoConstantCFStrings = 1; 2013 2014 if (Args.hasArg(OPT_fzvector)) 2015 Opts.ZVector = 1; 2016 2017 if (Args.hasArg(OPT_pthread)) 2018 Opts.POSIXThreads = 1; 2019 2020 // The value-visibility mode defaults to "default". 2021 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2022 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2023 } else { 2024 Opts.setValueVisibilityMode(DefaultVisibility); 2025 } 2026 2027 // The type-visibility mode defaults to the value-visibility mode. 2028 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2029 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2030 } else { 2031 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2032 } 2033 2034 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2035 Opts.InlineVisibilityHidden = 1; 2036 2037 if (Args.hasArg(OPT_ftrapv)) { 2038 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2039 // Set the handler, if one is specified. 2040 Opts.OverflowHandler = 2041 Args.getLastArgValue(OPT_ftrapv_handler); 2042 } 2043 else if (Args.hasArg(OPT_fwrapv)) 2044 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2045 2046 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2047 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2048 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2049 Opts.MSCompatibilityVersion = 0; 2050 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2051 VersionTuple VT; 2052 if (VT.tryParse(A->getValue())) 2053 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2054 << A->getValue(); 2055 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2056 VT.getMinor().getValueOr(0) * 100000 + 2057 VT.getSubminor().getValueOr(0); 2058 } 2059 2060 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 2061 // is specified, or -std is set to a conforming mode. 2062 // Trigraphs are disabled by default in c++1z onwards. 2063 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 2064 Opts.Trigraphs = 2065 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2066 2067 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2068 OPT_fno_dollars_in_identifiers, 2069 Opts.DollarIdents); 2070 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2071 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2072 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2073 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2074 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2075 Opts.ConstStrings); 2076 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2077 Opts.LaxVectorConversions = 0; 2078 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2079 Opts.ThreadsafeStatics = 0; 2080 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2081 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2082 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2083 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 2084 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2085 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2086 2087 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2088 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2089 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2090 && Opts.OpenCLVersion >= 200); 2091 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2092 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2093 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2094 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2095 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2096 Opts.ModulesDeclUse = 2097 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2098 Opts.ModulesLocalVisibility = 2099 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2100 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2101 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2102 Opts.ModulesSearchAll = Opts.Modules && 2103 !Args.hasArg(OPT_fno_modules_search_all) && 2104 Args.hasArg(OPT_fmodules_search_all); 2105 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2106 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2107 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2108 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2109 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 2110 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2111 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2112 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2113 if (!Opts.NoBuiltin) 2114 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2115 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2116 Opts.RelaxedTemplateTemplateArgs = 2117 Args.hasArg(OPT_frelaxed_template_template_args); 2118 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2119 Opts.AlignedAllocation = 2120 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2121 Opts.AlignedAllocation); 2122 Opts.AlignedAllocationUnavailable = 2123 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2124 Opts.NewAlignOverride = 2125 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2126 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2127 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2128 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2129 << A->getValue(); 2130 Opts.NewAlignOverride = 0; 2131 } 2132 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2133 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2134 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2135 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2136 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2137 Opts.InstantiationDepth = 2138 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2139 Opts.ArrowDepth = 2140 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2141 Opts.ConstexprCallDepth = 2142 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2143 Opts.ConstexprStepLimit = 2144 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2145 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2146 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2147 Opts.NumLargeByValueCopy = 2148 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2149 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2150 Opts.ObjCConstantStringClass = 2151 Args.getLastArgValue(OPT_fconstant_string_class); 2152 Opts.ObjCDefaultSynthProperties = 2153 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2154 Opts.EncodeExtendedBlockSig = 2155 Args.hasArg(OPT_fencode_extended_block_signature); 2156 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2157 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2158 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2159 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2160 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2161 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2162 Opts.Static = Args.hasArg(OPT_static_define); 2163 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2164 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2165 || Args.hasArg(OPT_fdump_record_layouts); 2166 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2167 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2168 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2169 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2170 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2171 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2172 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2173 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2174 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2175 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2176 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2177 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2178 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2179 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2180 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2181 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2182 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2183 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2184 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2185 // is enabled. 2186 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2187 | Opts.NativeHalfArgsAndReturns; 2188 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2189 2190 // __declspec is enabled by default for the PS4 by the driver, and also 2191 // enabled for Microsoft Extensions or Borland Extensions, here. 2192 // 2193 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2194 // CUDA extension. However, it is required for supporting 2195 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2196 // been rewritten in terms of something more generic, remove the Opts.CUDA 2197 // term here. 2198 Opts.DeclSpecKeyword = 2199 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2200 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2201 2202 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2203 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2204 .Case("target", LangOptions::ASMM_Target) 2205 .Case("no", LangOptions::ASMM_Off) 2206 .Case("yes", LangOptions::ASMM_On) 2207 .Default(255)) { 2208 default: 2209 Diags.Report(diag::err_drv_invalid_value) 2210 << "-faddress-space-map-mangling=" << A->getValue(); 2211 break; 2212 case LangOptions::ASMM_Target: 2213 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2214 break; 2215 case LangOptions::ASMM_On: 2216 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2217 break; 2218 case LangOptions::ASMM_Off: 2219 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2220 break; 2221 } 2222 } 2223 2224 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2225 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2226 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2227 A->getValue()) 2228 .Case("single", 2229 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2230 .Case("multiple", 2231 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2232 .Case("virtual", 2233 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2234 .Default(LangOptions::PPTMK_BestCase); 2235 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2236 Diags.Report(diag::err_drv_invalid_value) 2237 << "-fms-memptr-rep=" << A->getValue(); 2238 2239 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2240 } 2241 2242 // Check for MS default calling conventions being specified. 2243 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2244 LangOptions::DefaultCallingConvention DefaultCC = 2245 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2246 A->getValue()) 2247 .Case("cdecl", LangOptions::DCC_CDecl) 2248 .Case("fastcall", LangOptions::DCC_FastCall) 2249 .Case("stdcall", LangOptions::DCC_StdCall) 2250 .Case("vectorcall", LangOptions::DCC_VectorCall) 2251 .Default(LangOptions::DCC_None); 2252 if (DefaultCC == LangOptions::DCC_None) 2253 Diags.Report(diag::err_drv_invalid_value) 2254 << "-fdefault-calling-conv=" << A->getValue(); 2255 2256 llvm::Triple T(TargetOpts.Triple); 2257 llvm::Triple::ArchType Arch = T.getArch(); 2258 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2259 DefaultCC == LangOptions::DCC_StdCall) && 2260 Arch != llvm::Triple::x86; 2261 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2262 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2263 if (emitError) 2264 Diags.Report(diag::err_drv_argument_not_allowed_with) 2265 << A->getSpelling() << T.getTriple(); 2266 else 2267 Opts.setDefaultCallingConv(DefaultCC); 2268 } 2269 2270 // -mrtd option 2271 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2272 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2273 Diags.Report(diag::err_drv_argument_not_allowed_with) 2274 << A->getSpelling() << "-fdefault-calling-conv"; 2275 else { 2276 llvm::Triple T(TargetOpts.Triple); 2277 if (T.getArch() != llvm::Triple::x86) 2278 Diags.Report(diag::err_drv_argument_not_allowed_with) 2279 << A->getSpelling() << T.getTriple(); 2280 else 2281 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2282 } 2283 } 2284 2285 // Check if -fopenmp is specified. 2286 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2287 Opts.OpenMPUseTLS = 2288 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2289 Opts.OpenMPIsDevice = 2290 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2291 2292 if (Opts.OpenMP) { 2293 int Version = 2294 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2295 if (Version != 0) 2296 Opts.OpenMP = Version; 2297 // Provide diagnostic when a given target is not expected to be an OpenMP 2298 // device or host. 2299 if (!Opts.OpenMPIsDevice) { 2300 switch (T.getArch()) { 2301 default: 2302 break; 2303 // Add unsupported host targets here: 2304 case llvm::Triple::nvptx: 2305 case llvm::Triple::nvptx64: 2306 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2307 << TargetOpts.Triple; 2308 break; 2309 } 2310 } 2311 } 2312 2313 // Set the flag to prevent the implementation from emitting device exception 2314 // handling code for those requiring so. 2315 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2316 Opts.Exceptions = 0; 2317 Opts.CXXExceptions = 0; 2318 } 2319 2320 // Get the OpenMP target triples if any. 2321 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2322 2323 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2324 llvm::Triple TT(A->getValue(i)); 2325 2326 if (TT.getArch() == llvm::Triple::UnknownArch || 2327 !(TT.getArch() == llvm::Triple::ppc || 2328 TT.getArch() == llvm::Triple::ppc64 || 2329 TT.getArch() == llvm::Triple::ppc64le || 2330 TT.getArch() == llvm::Triple::nvptx || 2331 TT.getArch() == llvm::Triple::nvptx64 || 2332 TT.getArch() == llvm::Triple::x86 || 2333 TT.getArch() == llvm::Triple::x86_64)) 2334 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2335 else 2336 Opts.OMPTargetTriples.push_back(TT); 2337 } 2338 } 2339 2340 // Get OpenMP host file path if any and report if a non existent file is 2341 // found 2342 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2343 Opts.OMPHostIRFile = A->getValue(); 2344 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2345 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2346 << Opts.OMPHostIRFile; 2347 } 2348 2349 // Record whether the __DEPRECATED define was requested. 2350 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2351 OPT_fno_deprecated_macro, 2352 Opts.Deprecated); 2353 2354 // FIXME: Eliminate this dependency. 2355 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2356 OptSize = getOptimizationLevelSize(Args); 2357 Opts.Optimize = Opt != 0; 2358 Opts.OptimizeSize = OptSize != 0; 2359 2360 // This is the __NO_INLINE__ define, which just depends on things like the 2361 // optimization level and -fno-inline, not actually whether the backend has 2362 // inlining enabled. 2363 Opts.NoInlineDefine = !Opts.Optimize; 2364 if (Arg *InlineArg = Args.getLastArg( 2365 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2366 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2367 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2368 Opts.NoInlineDefine = true; 2369 2370 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2371 Args.hasArg(OPT_cl_fast_relaxed_math); 2372 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2373 Args.hasArg(OPT_cl_finite_math_only) || 2374 Args.hasArg(OPT_cl_fast_relaxed_math); 2375 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2376 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2377 Args.hasArg(OPT_cl_fast_relaxed_math); 2378 2379 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2380 StringRef Val = A->getValue(); 2381 if (Val == "fast") 2382 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2383 else if (Val == "on") 2384 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2385 else if (Val == "off") 2386 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2387 else 2388 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2389 } 2390 2391 Opts.RetainCommentsFromSystemHeaders = 2392 Args.hasArg(OPT_fretain_comments_from_system_headers); 2393 2394 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2395 switch (SSP) { 2396 default: 2397 Diags.Report(diag::err_drv_invalid_value) 2398 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2399 break; 2400 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2401 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2402 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2403 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2404 } 2405 2406 // Parse -fsanitize= arguments. 2407 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2408 Diags, Opts.Sanitize); 2409 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2410 Opts.SanitizeAddressFieldPadding = 2411 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2412 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2413 2414 // -fxray-instrument 2415 Opts.XRayInstrument = 2416 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2417 2418 // -fxray-{always,never}-instrument= filenames. 2419 Opts.XRayAlwaysInstrumentFiles = 2420 Args.getAllArgValues(OPT_fxray_always_instrument); 2421 Opts.XRayNeverInstrumentFiles = 2422 Args.getAllArgValues(OPT_fxray_never_instrument); 2423 2424 // -fallow-editor-placeholders 2425 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2426 } 2427 2428 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 2429 switch (Action) { 2430 case frontend::ASTDeclList: 2431 case frontend::ASTDump: 2432 case frontend::ASTPrint: 2433 case frontend::ASTView: 2434 case frontend::EmitAssembly: 2435 case frontend::EmitBC: 2436 case frontend::EmitHTML: 2437 case frontend::EmitLLVM: 2438 case frontend::EmitLLVMOnly: 2439 case frontend::EmitCodeGenOnly: 2440 case frontend::EmitObj: 2441 case frontend::FixIt: 2442 case frontend::GenerateModule: 2443 case frontend::GenerateModuleInterface: 2444 case frontend::GeneratePCH: 2445 case frontend::GeneratePTH: 2446 case frontend::ParseSyntaxOnly: 2447 case frontend::ModuleFileInfo: 2448 case frontend::VerifyPCH: 2449 case frontend::PluginAction: 2450 case frontend::PrintDeclContext: 2451 case frontend::RewriteObjC: 2452 case frontend::RewriteTest: 2453 case frontend::RunAnalysis: 2454 case frontend::MigrateSource: 2455 return false; 2456 2457 case frontend::DumpRawTokens: 2458 case frontend::DumpTokens: 2459 case frontend::InitOnly: 2460 case frontend::PrintPreamble: 2461 case frontend::PrintPreprocessedInput: 2462 case frontend::RewriteMacros: 2463 case frontend::RunPreprocessorOnly: 2464 return true; 2465 } 2466 llvm_unreachable("invalid frontend action"); 2467 } 2468 2469 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2470 FileManager &FileMgr, 2471 DiagnosticsEngine &Diags, 2472 frontend::ActionKind Action) { 2473 using namespace options; 2474 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2475 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2476 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2477 Opts.TokenCache = A->getValue(); 2478 else 2479 Opts.TokenCache = Opts.ImplicitPTHInclude; 2480 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2481 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2482 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2483 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 2484 2485 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2486 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2487 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2488 2489 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2490 StringRef Value(A->getValue()); 2491 size_t Comma = Value.find(','); 2492 unsigned Bytes = 0; 2493 unsigned EndOfLine = 0; 2494 2495 if (Comma == StringRef::npos || 2496 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2497 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2498 Diags.Report(diag::err_drv_preamble_format); 2499 else { 2500 Opts.PrecompiledPreambleBytes.first = Bytes; 2501 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2502 } 2503 } 2504 2505 // Add macros from the command line. 2506 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2507 if (A->getOption().matches(OPT_D)) 2508 Opts.addMacroDef(A->getValue()); 2509 else 2510 Opts.addMacroUndef(A->getValue()); 2511 } 2512 2513 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2514 2515 // Add the ordered list of -includes. 2516 for (const Arg *A : Args.filtered(OPT_include)) 2517 Opts.Includes.emplace_back(A->getValue()); 2518 2519 for (const Arg *A : Args.filtered(OPT_chain_include)) 2520 Opts.ChainedIncludes.emplace_back(A->getValue()); 2521 2522 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2523 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2524 2525 if (Split.second.empty()) { 2526 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2527 continue; 2528 } 2529 2530 Opts.addRemappedFile(Split.first, Split.second); 2531 } 2532 2533 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2534 StringRef Name = A->getValue(); 2535 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2536 .Case("libc++", ARCXX_libcxx) 2537 .Case("libstdc++", ARCXX_libstdcxx) 2538 .Case("none", ARCXX_nolib) 2539 .Default(~0U); 2540 if (Library == ~0U) 2541 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2542 else 2543 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2544 } 2545 2546 // Always avoid lexing editor placeholders when we're just running the 2547 // preprocessor as we never want to emit the 2548 // "editor placeholder in source file" error in PP only mode. 2549 if (isStrictlyPreprocessorAction(Action)) 2550 Opts.LexEditorPlaceholders = false; 2551 } 2552 2553 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2554 ArgList &Args, 2555 frontend::ActionKind Action) { 2556 using namespace options; 2557 2558 if (isStrictlyPreprocessorAction(Action)) 2559 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2560 else 2561 Opts.ShowCPP = 0; 2562 2563 Opts.ShowComments = Args.hasArg(OPT_C); 2564 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2565 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2566 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2567 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2568 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2569 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 2570 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2571 } 2572 2573 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2574 DiagnosticsEngine &Diags) { 2575 using namespace options; 2576 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2577 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2578 StringRef Value = A->getValue(); 2579 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2580 .Case("default", llvm::EABI::Default) 2581 .Case("4", llvm::EABI::EABI4) 2582 .Case("5", llvm::EABI::EABI5) 2583 .Case("gnu", llvm::EABI::GNU) 2584 .Default(llvm::EABI::Unknown); 2585 if (EABIVersion == llvm::EABI::Unknown) 2586 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2587 << Value; 2588 else 2589 Opts.EABIVersion = EABIVersion; 2590 } 2591 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2592 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2593 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2594 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2595 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2596 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2597 // Use the default target triple if unspecified. 2598 if (Opts.Triple.empty()) 2599 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2600 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2601 } 2602 2603 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2604 const char *const *ArgBegin, 2605 const char *const *ArgEnd, 2606 DiagnosticsEngine &Diags) { 2607 bool Success = true; 2608 2609 // Parse the arguments. 2610 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2611 const unsigned IncludedFlagsBitmask = options::CC1Option; 2612 unsigned MissingArgIndex, MissingArgCount; 2613 InputArgList Args = 2614 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2615 MissingArgCount, IncludedFlagsBitmask); 2616 LangOptions &LangOpts = *Res.getLangOpts(); 2617 2618 // Check for missing argument error. 2619 if (MissingArgCount) { 2620 Diags.Report(diag::err_drv_missing_argument) 2621 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2622 Success = false; 2623 } 2624 2625 // Issue errors on unknown arguments. 2626 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2627 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2628 Success = false; 2629 } 2630 2631 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2632 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2633 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2634 Success &= 2635 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2636 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2637 ParseCommentArgs(LangOpts.CommentOpts, Args); 2638 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2639 // FIXME: We shouldn't have to pass the DashX option around here 2640 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2641 LangOpts.IsHeaderFile); 2642 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2643 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2644 Res.getTargetOpts()); 2645 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2646 Res.getFileSystemOpts().WorkingDir); 2647 if (DashX.getFormat() == InputKind::Precompiled || 2648 DashX.getLanguage() == InputKind::LLVM_IR) { 2649 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2650 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2651 // what the input type is. 2652 if (Args.hasArg(OPT_fobjc_arc)) 2653 LangOpts.ObjCAutoRefCount = 1; 2654 // PIClevel and PIELevel are needed during code generation and this should be 2655 // set regardless of the input type. 2656 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2657 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2658 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2659 Diags, LangOpts.Sanitize); 2660 } else { 2661 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2662 // FIXME: Should we really be calling this for an InputKind::Asm input? 2663 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2664 Res.getPreprocessorOpts(), Diags); 2665 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2666 LangOpts.ObjCExceptions = 1; 2667 } 2668 2669 if (LangOpts.CUDA) { 2670 // During CUDA device-side compilation, the aux triple is the 2671 // triple used for host compilation. 2672 if (LangOpts.CUDAIsDevice) 2673 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2674 } 2675 2676 // Set the triple of the host for OpenMP device compile. 2677 if (LangOpts.OpenMPIsDevice) 2678 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2679 2680 // FIXME: Override value name discarding when asan or msan is used because the 2681 // backend passes depend on the name of the alloca in order to print out 2682 // names. 2683 Res.getCodeGenOpts().DiscardValueNames &= 2684 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2685 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2686 2687 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2688 // PCH file and find the original header name. Remove the need to do that in 2689 // ParsePreprocessorArgs and remove the FileManager 2690 // parameters from the function and the "FileManager.h" #include. 2691 FileManager FileMgr(Res.getFileSystemOpts()); 2692 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags, 2693 Res.getFrontendOpts().ProgramAction); 2694 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2695 Res.getFrontendOpts().ProgramAction); 2696 2697 // Turn on -Wspir-compat for SPIR target. 2698 llvm::Triple T(Res.getTargetOpts().Triple); 2699 auto Arch = T.getArch(); 2700 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2701 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2702 } 2703 return Success; 2704 } 2705 2706 std::string CompilerInvocation::getModuleHash() const { 2707 // Note: For QoI reasons, the things we use as a hash here should all be 2708 // dumped via the -module-info flag. 2709 using llvm::hash_code; 2710 using llvm::hash_value; 2711 using llvm::hash_combine; 2712 2713 // Start the signature with the compiler version. 2714 // FIXME: We'd rather use something more cryptographically sound than 2715 // CityHash, but this will do for now. 2716 hash_code code = hash_value(getClangFullRepositoryVersion()); 2717 2718 // Extend the signature with the language options 2719 #define LANGOPT(Name, Bits, Default, Description) \ 2720 code = hash_combine(code, LangOpts->Name); 2721 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2722 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2723 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2724 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2725 #include "clang/Basic/LangOptions.def" 2726 2727 for (StringRef Feature : LangOpts->ModuleFeatures) 2728 code = hash_combine(code, Feature); 2729 2730 // Extend the signature with the target options. 2731 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2732 TargetOpts->ABI); 2733 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2734 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2735 2736 // Extend the signature with preprocessor options. 2737 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2738 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2739 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2740 2741 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2742 I = getPreprocessorOpts().Macros.begin(), 2743 IEnd = getPreprocessorOpts().Macros.end(); 2744 I != IEnd; ++I) { 2745 // If we're supposed to ignore this macro for the purposes of modules, 2746 // don't put it into the hash. 2747 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2748 // Check whether we're ignoring this macro. 2749 StringRef MacroDef = I->first; 2750 if (hsOpts.ModulesIgnoreMacros.count( 2751 llvm::CachedHashString(MacroDef.split('=').first))) 2752 continue; 2753 } 2754 2755 code = hash_combine(code, I->first, I->second); 2756 } 2757 2758 // Extend the signature with the sysroot and other header search options. 2759 code = hash_combine(code, hsOpts.Sysroot, 2760 hsOpts.ModuleFormat, 2761 hsOpts.UseDebugInfo, 2762 hsOpts.UseBuiltinIncludes, 2763 hsOpts.UseStandardSystemIncludes, 2764 hsOpts.UseStandardCXXIncludes, 2765 hsOpts.UseLibcxx, 2766 hsOpts.ModulesValidateDiagnosticOptions); 2767 code = hash_combine(code, hsOpts.ResourceDir); 2768 2769 // Extend the signature with the user build path. 2770 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2771 2772 // Extend the signature with the module file extensions. 2773 const FrontendOptions &frontendOpts = getFrontendOpts(); 2774 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2775 code = ext->hashExtension(code); 2776 } 2777 2778 // Extend the signature with the enabled sanitizers, if at least one is 2779 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 2780 SanitizerSet SanHash = LangOpts->Sanitize; 2781 SanHash.clear(getPPTransparentSanitizers()); 2782 if (!SanHash.empty()) 2783 code = hash_combine(code, SanHash.Mask); 2784 2785 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2786 } 2787 2788 namespace clang { 2789 2790 template<typename IntTy> 2791 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2792 IntTy Default, 2793 DiagnosticsEngine *Diags) { 2794 IntTy Res = Default; 2795 if (Arg *A = Args.getLastArg(Id)) { 2796 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2797 if (Diags) 2798 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2799 << A->getValue(); 2800 } 2801 } 2802 return Res; 2803 } 2804 2805 2806 // Declared in clang/Frontend/Utils.h. 2807 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2808 DiagnosticsEngine *Diags) { 2809 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2810 } 2811 2812 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2813 uint64_t Default, 2814 DiagnosticsEngine *Diags) { 2815 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2816 } 2817 2818 void BuryPointer(const void *Ptr) { 2819 // This function may be called only a small fixed amount of times per each 2820 // invocation, otherwise we do actually have a leak which we want to report. 2821 // If this function is called more than kGraveYardMaxSize times, the pointers 2822 // will not be properly buried and a leak detector will report a leak, which 2823 // is what we want in such case. 2824 static const size_t kGraveYardMaxSize = 16; 2825 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2826 static std::atomic<unsigned> GraveYardSize; 2827 unsigned Idx = GraveYardSize++; 2828 if (Idx >= kGraveYardMaxSize) 2829 return; 2830 GraveYard[Idx] = Ptr; 2831 } 2832 2833 IntrusiveRefCntPtr<vfs::FileSystem> 2834 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2835 DiagnosticsEngine &Diags) { 2836 return createVFSFromCompilerInvocation(CI, Diags, vfs::getRealFileSystem()); 2837 } 2838 2839 IntrusiveRefCntPtr<vfs::FileSystem> 2840 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2841 DiagnosticsEngine &Diags, 2842 IntrusiveRefCntPtr<vfs::FileSystem> BaseFS) { 2843 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2844 return BaseFS; 2845 2846 IntrusiveRefCntPtr<vfs::OverlayFileSystem> Overlay( 2847 new vfs::OverlayFileSystem(BaseFS)); 2848 // earlier vfs files are on the bottom 2849 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2850 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2851 BaseFS->getBufferForFile(File); 2852 if (!Buffer) { 2853 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2854 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2855 } 2856 2857 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2858 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2859 if (!FS.get()) { 2860 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2861 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2862 } 2863 Overlay->pushOverlay(FS); 2864 } 2865 return Overlay; 2866 } 2867 } // end namespace clang 2868