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 = Args.hasArg(OPT_dwarf_explicit_import); 531 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 532 533 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 534 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 535 536 if (const Arg *A = 537 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 538 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 539 540 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 541 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 542 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 543 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 544 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 545 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 546 OPT_fuse_register_sized_bitfield_access); 547 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 548 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 549 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 550 Args.hasArg(OPT_new_struct_path_tbaa); 551 Opts.FineGrainedBitfieldAccesses = 552 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 553 OPT_fno_fine_grained_bitfield_accesses, false); 554 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 555 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 556 Opts.NoCommon = Args.hasArg(OPT_fno_common); 557 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 558 Opts.OptimizeSize = getOptimizationLevelSize(Args); 559 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 560 Args.hasArg(OPT_ffreestanding)); 561 if (Opts.SimplifyLibCalls) 562 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 563 Opts.UnrollLoops = 564 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 565 (Opts.OptimizationLevel > 1)); 566 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 567 568 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 569 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 570 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 571 Opts.DebugInfoForProfiling = Args.hasFlag( 572 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 573 Opts.GnuPubnames = Args.hasArg(OPT_ggnu_pubnames); 574 575 setPGOInstrumentor(Opts, Args, Diags); 576 Opts.InstrProfileOutput = 577 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 578 Opts.ProfileInstrumentUsePath = 579 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 580 if (!Opts.ProfileInstrumentUsePath.empty()) 581 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 582 583 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 584 Opts.setClangABICompat(CodeGenOptions::ClangABI::Latest); 585 586 StringRef Ver = A->getValue(); 587 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 588 unsigned Major, Minor = 0; 589 590 // Check the version number is valid: either 3.x (0 <= x <= 9) or 591 // y or y.0 (4 <= y <= current version). 592 if (!VerParts.first.startswith("0") && 593 !VerParts.first.getAsInteger(10, Major) && 594 3 <= Major && Major <= CLANG_VERSION_MAJOR && 595 (Major == 3 ? VerParts.second.size() == 1 && 596 !VerParts.second.getAsInteger(10, Minor) 597 : VerParts.first.size() == Ver.size() || 598 VerParts.second == "0")) { 599 // Got a valid version number. 600 if (Major == 3 && Minor <= 8) 601 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver3_8); 602 else if (Major <= 4) 603 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver4); 604 } else if (Ver != "latest") { 605 Diags.Report(diag::err_drv_invalid_value) 606 << A->getAsString(Args) << A->getValue(); 607 } 608 } 609 610 Opts.CoverageMapping = 611 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 612 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 613 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 614 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 615 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 616 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 617 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 618 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 619 Opts.CodeModel = getCodeModel(Args, Diags); 620 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 621 Opts.DisableFPElim = 622 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 623 Opts.DisableFree = Args.hasArg(OPT_disable_free); 624 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 625 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 626 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 627 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 628 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 629 Args.hasArg(OPT_cl_fast_relaxed_math); 630 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 631 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 632 Args.hasArg(OPT_cl_finite_math_only) || 633 Args.hasArg(OPT_cl_fast_relaxed_math)); 634 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 635 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 636 Args.hasArg(OPT_cl_finite_math_only) || 637 Args.hasArg(OPT_cl_fast_relaxed_math)); 638 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 639 Args.hasArg(OPT_cl_no_signed_zeros) || 640 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 641 Args.hasArg(OPT_cl_fast_relaxed_math)); 642 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 643 Opts.CorrectlyRoundedDivSqrt = 644 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 645 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 646 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 647 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 648 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 649 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 650 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 651 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 652 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 653 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 654 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 655 Opts.IncrementalLinkerCompatible = 656 Args.hasArg(OPT_mincremental_linker_compatible); 657 Opts.PIECopyRelocations = 658 Args.hasArg(OPT_mpie_copy_relocations); 659 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 660 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 661 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 662 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 663 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 664 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 665 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 666 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 667 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 668 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 669 Args.hasArg(OPT_cl_fast_relaxed_math); 670 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 671 Opts.RelocationModel = getRelocModel(Args, Diags); 672 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 673 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 674 Diags.Report(diag::err_drv_invalid_value) 675 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 676 << Opts.ThreadModel; 677 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 678 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 679 680 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 681 OPT_fno_function_sections, false); 682 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 683 OPT_fno_data_sections, false); 684 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 685 OPT_fno_unique_section_names, true); 686 687 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 688 689 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 690 691 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 692 693 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 694 Opts.EmitSummaryIndex = false; 695 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 696 StringRef S = A->getValue(); 697 if (S == "thin") 698 Opts.EmitSummaryIndex = true; 699 else if (S != "full") 700 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 701 } 702 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 703 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 704 if (IK.getLanguage() != InputKind::LLVM_IR) 705 Diags.Report(diag::err_drv_argument_only_allowed_with) 706 << A->getAsString(Args) << "-x ir"; 707 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 708 } 709 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 710 711 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 712 713 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 714 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 715 716 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 717 718 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 719 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 720 721 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 722 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 723 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 724 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 725 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 726 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 727 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 728 Opts.CoverageNoFunctionNamesInData = 729 Args.hasArg(OPT_coverage_no_function_names_in_data); 730 Opts.CoverageExitBlockBeforeBody = 731 Args.hasArg(OPT_coverage_exit_block_before_body); 732 if (Args.hasArg(OPT_coverage_version_EQ)) { 733 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 734 if (CoverageVersion.size() != 4) { 735 Diags.Report(diag::err_drv_invalid_value) 736 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 737 << CoverageVersion; 738 } else { 739 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 740 } 741 } 742 } 743 // Handle -fembed-bitcode option. 744 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 745 StringRef Name = A->getValue(); 746 unsigned Model = llvm::StringSwitch<unsigned>(Name) 747 .Case("off", CodeGenOptions::Embed_Off) 748 .Case("all", CodeGenOptions::Embed_All) 749 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 750 .Case("marker", CodeGenOptions::Embed_Marker) 751 .Default(~0U); 752 if (Model == ~0U) { 753 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 754 Success = false; 755 } else 756 Opts.setEmbedBitcode( 757 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 758 } 759 // FIXME: For backend options that are not yet recorded as function 760 // attributes in the IR, keep track of them so we can embed them in a 761 // separate data section and use them when building the bitcode. 762 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 763 for (const auto &A : Args) { 764 // Do not encode output and input. 765 if (A->getOption().getID() == options::OPT_o || 766 A->getOption().getID() == options::OPT_INPUT || 767 A->getOption().getID() == options::OPT_x || 768 A->getOption().getID() == options::OPT_fembed_bitcode || 769 (A->getOption().getGroup().isValid() && 770 A->getOption().getGroup().getID() == options::OPT_W_Group)) 771 continue; 772 ArgStringList ASL; 773 A->render(Args, ASL); 774 for (const auto &arg : ASL) { 775 StringRef ArgStr(arg); 776 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 777 // using \00 to seperate each commandline options. 778 Opts.CmdArgs.push_back('\0'); 779 } 780 } 781 } 782 783 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 784 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 785 Opts.InstrumentFunctionsAfterInlining = 786 Args.hasArg(OPT_finstrument_functions_after_inlining); 787 Opts.InstrumentFunctionEntryBare = 788 Args.hasArg(OPT_finstrument_function_entry_bare); 789 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 790 Opts.XRayAlwaysEmitCustomEvents = 791 Args.hasArg(OPT_fxray_always_emit_customevents); 792 Opts.XRayInstructionThreshold = 793 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 794 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 795 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 796 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 797 798 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 799 OPT_compress_debug_sections_EQ)) { 800 if (A->getOption().getID() == OPT_compress_debug_sections) { 801 // TODO: be more clever about the compression type auto-detection 802 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 803 } else { 804 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 805 .Case("none", llvm::DebugCompressionType::None) 806 .Case("zlib", llvm::DebugCompressionType::Z) 807 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 808 .Default(llvm::DebugCompressionType::None); 809 Opts.setCompressDebugSections(DCT); 810 } 811 } 812 813 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 814 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 815 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 816 CodeGenOptions::BitcodeFileToLink F; 817 F.Filename = A->getValue(); 818 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) { 819 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 820 // When linking CUDA bitcode, propagate function attributes so that 821 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 822 F.PropagateAttrs = true; 823 F.Internalize = true; 824 } 825 Opts.LinkBitcodeFiles.push_back(F); 826 } 827 Opts.SanitizeCoverageType = 828 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 829 Opts.SanitizeCoverageIndirectCalls = 830 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 831 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 832 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 833 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 834 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 835 Opts.SanitizeCoverage8bitCounters = 836 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 837 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 838 Opts.SanitizeCoverageTracePCGuard = 839 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 840 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 841 Opts.SanitizeCoverageInline8bitCounters = 842 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 843 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 844 Opts.SanitizeCoverageStackDepth = 845 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 846 Opts.SanitizeMemoryTrackOrigins = 847 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 848 Opts.SanitizeMemoryUseAfterDtor = 849 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 850 OPT_fno_sanitize_memory_use_after_dtor, 851 false); 852 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 853 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 854 Opts.SanitizeCfiICallGeneralizePointers = 855 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 856 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 857 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 858 OPT_fno_sanitize_address_use_after_scope)) { 859 Opts.SanitizeAddressUseAfterScope = 860 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 861 } 862 Opts.SanitizeAddressGlobalsDeadStripping = 863 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 864 Opts.SSPBufferSize = 865 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 866 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 867 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 868 StringRef Val = A->getValue(); 869 unsigned StackAlignment = Opts.StackAlignment; 870 Val.getAsInteger(10, StackAlignment); 871 Opts.StackAlignment = StackAlignment; 872 } 873 874 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 875 StringRef Val = A->getValue(); 876 unsigned StackProbeSize = Opts.StackProbeSize; 877 Val.getAsInteger(0, StackProbeSize); 878 Opts.StackProbeSize = StackProbeSize; 879 } 880 881 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 882 StringRef Name = A->getValue(); 883 unsigned Method = llvm::StringSwitch<unsigned>(Name) 884 .Case("legacy", CodeGenOptions::Legacy) 885 .Case("non-legacy", CodeGenOptions::NonLegacy) 886 .Case("mixed", CodeGenOptions::Mixed) 887 .Default(~0U); 888 if (Method == ~0U) { 889 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 890 Success = false; 891 } else { 892 Opts.setObjCDispatchMethod( 893 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 894 } 895 } 896 897 Opts.EmulatedTLS = 898 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 899 900 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 901 StringRef Name = A->getValue(); 902 unsigned Model = llvm::StringSwitch<unsigned>(Name) 903 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 904 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 905 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 906 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 907 .Default(~0U); 908 if (Model == ~0U) { 909 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 910 Success = false; 911 } else { 912 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 913 } 914 } 915 916 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 917 StringRef Val = A->getValue(); 918 if (Val == "ieee") 919 Opts.FPDenormalMode = "ieee"; 920 else if (Val == "preserve-sign") 921 Opts.FPDenormalMode = "preserve-sign"; 922 else if (Val == "positive-zero") 923 Opts.FPDenormalMode = "positive-zero"; 924 else 925 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 926 } 927 928 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 929 if (A->getOption().matches(OPT_fpcc_struct_return)) { 930 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 931 } else { 932 assert(A->getOption().matches(OPT_freg_struct_return)); 933 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 934 } 935 } 936 937 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 938 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 939 bool NeedLocTracking = false; 940 941 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 942 if (!Opts.OptRecordFile.empty()) 943 NeedLocTracking = true; 944 945 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 946 Opts.OptimizationRemarkPattern = 947 GenerateOptimizationRemarkRegex(Diags, Args, A); 948 NeedLocTracking = true; 949 } 950 951 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 952 Opts.OptimizationRemarkMissedPattern = 953 GenerateOptimizationRemarkRegex(Diags, Args, A); 954 NeedLocTracking = true; 955 } 956 957 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 958 Opts.OptimizationRemarkAnalysisPattern = 959 GenerateOptimizationRemarkRegex(Diags, Args, A); 960 NeedLocTracking = true; 961 } 962 963 Opts.DiagnosticsWithHotness = 964 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 965 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 966 bool UsingProfile = UsingSampleProfile || 967 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 968 969 if (Opts.DiagnosticsWithHotness && !UsingProfile) 970 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 971 << "-fdiagnostics-show-hotness"; 972 973 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 974 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 975 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 976 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 977 << "-fdiagnostics-hotness-threshold="; 978 979 // If the user requested to use a sample profile for PGO, then the 980 // backend will need to track source location information so the profile 981 // can be incorporated into the IR. 982 if (UsingSampleProfile) 983 NeedLocTracking = true; 984 985 // If the user requested a flag that requires source locations available in 986 // the backend, make sure that the backend tracks source location information. 987 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 988 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 989 990 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 991 992 // Parse -fsanitize-recover= arguments. 993 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 994 parseSanitizerKinds("-fsanitize-recover=", 995 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 996 Opts.SanitizeRecover); 997 parseSanitizerKinds("-fsanitize-trap=", 998 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 999 Opts.SanitizeTrap); 1000 1001 Opts.CudaGpuBinaryFileNames = 1002 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 1003 1004 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1005 1006 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1007 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1008 1009 return Success; 1010 } 1011 1012 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1013 ArgList &Args) { 1014 using namespace options; 1015 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1016 Opts.Targets = Args.getAllArgValues(OPT_MT); 1017 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1018 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1019 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1020 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1021 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1022 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1023 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 1024 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1025 Opts.ModuleDependencyOutputDir = 1026 Args.getLastArgValue(OPT_module_dependency_dir); 1027 if (Args.hasArg(OPT_MV)) 1028 Opts.OutputFormat = DependencyOutputFormat::NMake; 1029 // Add sanitizer blacklists as extra dependencies. 1030 // They won't be discovered by the regular preprocessor, so 1031 // we let make / ninja to know about this implicit dependency. 1032 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1033 // Only the -fmodule-file=<file> form. 1034 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1035 StringRef Val = A->getValue(); 1036 if (Val.find('=') == StringRef::npos) 1037 Opts.ExtraDeps.push_back(Val); 1038 } 1039 } 1040 1041 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1042 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1043 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1044 // Support both clang's -f[no-]color-diagnostics and gcc's 1045 // -f[no-]diagnostics-colors[=never|always|auto]. 1046 enum { 1047 Colors_On, 1048 Colors_Off, 1049 Colors_Auto 1050 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1051 for (Arg *A : Args) { 1052 const Option &O = A->getOption(); 1053 if (O.matches(options::OPT_fcolor_diagnostics) || 1054 O.matches(options::OPT_fdiagnostics_color)) { 1055 ShowColors = Colors_On; 1056 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1057 O.matches(options::OPT_fno_diagnostics_color)) { 1058 ShowColors = Colors_Off; 1059 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1060 StringRef Value(A->getValue()); 1061 if (Value == "always") 1062 ShowColors = Colors_On; 1063 else if (Value == "never") 1064 ShowColors = Colors_Off; 1065 else if (Value == "auto") 1066 ShowColors = Colors_Auto; 1067 } 1068 } 1069 return ShowColors == Colors_On || 1070 (ShowColors == Colors_Auto && 1071 llvm::sys::Process::StandardErrHasColors()); 1072 } 1073 1074 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1075 DiagnosticsEngine *Diags) { 1076 bool Success = true; 1077 for (const auto &Prefix : VerifyPrefixes) { 1078 // Every prefix must start with a letter and contain only alphanumeric 1079 // characters, hyphens, and underscores. 1080 auto BadChar = std::find_if(Prefix.begin(), Prefix.end(), 1081 [](char C){return !isAlphanumeric(C) 1082 && C != '-' && C != '_';}); 1083 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1084 Success = false; 1085 if (Diags) { 1086 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1087 Diags->Report(diag::note_drv_verify_prefix_spelling); 1088 } 1089 } 1090 } 1091 return Success; 1092 } 1093 1094 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1095 DiagnosticsEngine *Diags, 1096 bool DefaultDiagColor, bool DefaultShowOpt) { 1097 using namespace options; 1098 bool Success = true; 1099 1100 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1101 if (Arg *A = 1102 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1103 Opts.DiagnosticSerializationFile = A->getValue(); 1104 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1105 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1106 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1107 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1108 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1109 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1110 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1111 OPT_fno_show_column, 1112 /*Default=*/true); 1113 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1114 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1115 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1116 Opts.ShowOptionNames = 1117 Args.hasFlag(OPT_fdiagnostics_show_option, 1118 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1119 1120 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1121 1122 // Default behavior is to not to show note include stacks. 1123 Opts.ShowNoteIncludeStack = false; 1124 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1125 OPT_fno_diagnostics_show_note_include_stack)) 1126 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1127 Opts.ShowNoteIncludeStack = true; 1128 1129 StringRef ShowOverloads = 1130 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1131 if (ShowOverloads == "best") 1132 Opts.setShowOverloads(Ovl_Best); 1133 else if (ShowOverloads == "all") 1134 Opts.setShowOverloads(Ovl_All); 1135 else { 1136 Success = false; 1137 if (Diags) 1138 Diags->Report(diag::err_drv_invalid_value) 1139 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1140 << ShowOverloads; 1141 } 1142 1143 StringRef ShowCategory = 1144 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1145 if (ShowCategory == "none") 1146 Opts.ShowCategories = 0; 1147 else if (ShowCategory == "id") 1148 Opts.ShowCategories = 1; 1149 else if (ShowCategory == "name") 1150 Opts.ShowCategories = 2; 1151 else { 1152 Success = false; 1153 if (Diags) 1154 Diags->Report(diag::err_drv_invalid_value) 1155 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1156 << ShowCategory; 1157 } 1158 1159 StringRef Format = 1160 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1161 if (Format == "clang") 1162 Opts.setFormat(DiagnosticOptions::Clang); 1163 else if (Format == "msvc") 1164 Opts.setFormat(DiagnosticOptions::MSVC); 1165 else if (Format == "msvc-fallback") { 1166 Opts.setFormat(DiagnosticOptions::MSVC); 1167 Opts.CLFallbackMode = true; 1168 } else if (Format == "vi") 1169 Opts.setFormat(DiagnosticOptions::Vi); 1170 else { 1171 Success = false; 1172 if (Diags) 1173 Diags->Report(diag::err_drv_invalid_value) 1174 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1175 << Format; 1176 } 1177 1178 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1179 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1180 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1181 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1182 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1183 if (Args.hasArg(OPT_verify)) 1184 Opts.VerifyPrefixes.push_back("expected"); 1185 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1186 // then sort it to prepare for fast lookup using std::binary_search. 1187 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1188 Opts.VerifyDiagnostics = false; 1189 Success = false; 1190 } 1191 else 1192 std::sort(Opts.VerifyPrefixes.begin(), Opts.VerifyPrefixes.end()); 1193 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1194 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1195 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1196 Diags, DiagMask); 1197 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1198 DiagMask = DiagnosticLevelMask::All; 1199 Opts.setVerifyIgnoreUnexpected(DiagMask); 1200 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1201 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1202 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1203 Opts.MacroBacktraceLimit = 1204 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1205 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1206 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1207 Args, OPT_ftemplate_backtrace_limit, 1208 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1209 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1210 Args, OPT_fconstexpr_backtrace_limit, 1211 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1212 Opts.SpellCheckingLimit = getLastArgIntValue( 1213 Args, OPT_fspell_checking_limit, 1214 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1215 Opts.SnippetLineLimit = getLastArgIntValue( 1216 Args, OPT_fcaret_diagnostics_max_lines, 1217 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1218 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1219 DiagnosticOptions::DefaultTabStop, Diags); 1220 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1221 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1222 if (Diags) 1223 Diags->Report(diag::warn_ignoring_ftabstop_value) 1224 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1225 } 1226 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1227 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1228 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1229 1230 return Success; 1231 } 1232 1233 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1234 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1235 } 1236 1237 /// Parse the argument to the -ftest-module-file-extension 1238 /// command-line argument. 1239 /// 1240 /// \returns true on error, false on success. 1241 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1242 std::string &BlockName, 1243 unsigned &MajorVersion, 1244 unsigned &MinorVersion, 1245 bool &Hashed, 1246 std::string &UserInfo) { 1247 SmallVector<StringRef, 5> Args; 1248 Arg.split(Args, ':', 5); 1249 if (Args.size() < 5) 1250 return true; 1251 1252 BlockName = Args[0]; 1253 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1254 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1255 if (Args[3].getAsInteger(2, Hashed)) return true; 1256 if (Args.size() > 4) 1257 UserInfo = Args[4]; 1258 return false; 1259 } 1260 1261 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1262 DiagnosticsEngine &Diags, 1263 bool &IsHeaderFile) { 1264 using namespace options; 1265 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1266 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1267 switch (A->getOption().getID()) { 1268 default: 1269 llvm_unreachable("Invalid option in group!"); 1270 case OPT_ast_list: 1271 Opts.ProgramAction = frontend::ASTDeclList; break; 1272 case OPT_ast_dump: 1273 case OPT_ast_dump_all: 1274 case OPT_ast_dump_lookups: 1275 Opts.ProgramAction = frontend::ASTDump; break; 1276 case OPT_ast_print: 1277 Opts.ProgramAction = frontend::ASTPrint; break; 1278 case OPT_ast_view: 1279 Opts.ProgramAction = frontend::ASTView; break; 1280 case OPT_dump_raw_tokens: 1281 Opts.ProgramAction = frontend::DumpRawTokens; break; 1282 case OPT_dump_tokens: 1283 Opts.ProgramAction = frontend::DumpTokens; break; 1284 case OPT_S: 1285 Opts.ProgramAction = frontend::EmitAssembly; break; 1286 case OPT_emit_llvm_bc: 1287 Opts.ProgramAction = frontend::EmitBC; break; 1288 case OPT_emit_html: 1289 Opts.ProgramAction = frontend::EmitHTML; break; 1290 case OPT_emit_llvm: 1291 Opts.ProgramAction = frontend::EmitLLVM; break; 1292 case OPT_emit_llvm_only: 1293 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1294 case OPT_emit_codegen_only: 1295 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1296 case OPT_emit_obj: 1297 Opts.ProgramAction = frontend::EmitObj; break; 1298 case OPT_fixit_EQ: 1299 Opts.FixItSuffix = A->getValue(); 1300 // fall-through! 1301 case OPT_fixit: 1302 Opts.ProgramAction = frontend::FixIt; break; 1303 case OPT_emit_module: 1304 Opts.ProgramAction = frontend::GenerateModule; break; 1305 case OPT_emit_module_interface: 1306 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1307 case OPT_emit_pch: 1308 Opts.ProgramAction = frontend::GeneratePCH; break; 1309 case OPT_emit_pth: 1310 Opts.ProgramAction = frontend::GeneratePTH; break; 1311 case OPT_init_only: 1312 Opts.ProgramAction = frontend::InitOnly; break; 1313 case OPT_fsyntax_only: 1314 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1315 case OPT_module_file_info: 1316 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1317 case OPT_verify_pch: 1318 Opts.ProgramAction = frontend::VerifyPCH; break; 1319 case OPT_print_decl_contexts: 1320 Opts.ProgramAction = frontend::PrintDeclContext; break; 1321 case OPT_print_preamble: 1322 Opts.ProgramAction = frontend::PrintPreamble; break; 1323 case OPT_E: 1324 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1325 case OPT_rewrite_macros: 1326 Opts.ProgramAction = frontend::RewriteMacros; break; 1327 case OPT_rewrite_objc: 1328 Opts.ProgramAction = frontend::RewriteObjC; break; 1329 case OPT_rewrite_test: 1330 Opts.ProgramAction = frontend::RewriteTest; break; 1331 case OPT_analyze: 1332 Opts.ProgramAction = frontend::RunAnalysis; break; 1333 case OPT_migrate: 1334 Opts.ProgramAction = frontend::MigrateSource; break; 1335 case OPT_Eonly: 1336 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1337 } 1338 } 1339 1340 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1341 Opts.Plugins.emplace_back(A->getValue(0)); 1342 Opts.ProgramAction = frontend::PluginAction; 1343 Opts.ActionName = A->getValue(); 1344 } 1345 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1346 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1347 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1348 1349 for (const std::string &Arg : 1350 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1351 std::string BlockName; 1352 unsigned MajorVersion; 1353 unsigned MinorVersion; 1354 bool Hashed; 1355 std::string UserInfo; 1356 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1357 MinorVersion, Hashed, UserInfo)) { 1358 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1359 1360 continue; 1361 } 1362 1363 // Add the testing module file extension. 1364 Opts.ModuleFileExtensions.push_back( 1365 std::make_shared<TestModuleFileExtension>( 1366 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1367 } 1368 1369 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1370 Opts.CodeCompletionAt = 1371 ParsedSourceLocation::FromString(A->getValue()); 1372 if (Opts.CodeCompletionAt.FileName.empty()) 1373 Diags.Report(diag::err_drv_invalid_value) 1374 << A->getAsString(Args) << A->getValue(); 1375 } 1376 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1377 1378 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1379 Opts.Plugins = Args.getAllArgValues(OPT_load); 1380 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1381 Opts.ShowHelp = Args.hasArg(OPT_help); 1382 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1383 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1384 Opts.ShowVersion = Args.hasArg(OPT_version); 1385 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1386 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1387 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1388 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1389 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1390 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1391 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1392 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1393 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1394 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1395 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1396 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1397 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1398 // Only the -fmodule-file=<file> form. 1399 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1400 StringRef Val = A->getValue(); 1401 if (Val.find('=') == StringRef::npos) 1402 Opts.ModuleFiles.push_back(Val); 1403 } 1404 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1405 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1406 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1407 1408 Opts.CodeCompleteOpts.IncludeMacros 1409 = Args.hasArg(OPT_code_completion_macros); 1410 Opts.CodeCompleteOpts.IncludeCodePatterns 1411 = Args.hasArg(OPT_code_completion_patterns); 1412 Opts.CodeCompleteOpts.IncludeGlobals 1413 = !Args.hasArg(OPT_no_code_completion_globals); 1414 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1415 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1416 Opts.CodeCompleteOpts.IncludeBriefComments 1417 = Args.hasArg(OPT_code_completion_brief_comments); 1418 1419 Opts.OverrideRecordLayoutsFile 1420 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1421 Opts.AuxTriple = 1422 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1423 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1424 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1425 1426 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1427 OPT_arcmt_modify, 1428 OPT_arcmt_migrate)) { 1429 switch (A->getOption().getID()) { 1430 default: 1431 llvm_unreachable("missed a case"); 1432 case OPT_arcmt_check: 1433 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1434 break; 1435 case OPT_arcmt_modify: 1436 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1437 break; 1438 case OPT_arcmt_migrate: 1439 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1440 break; 1441 } 1442 } 1443 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1444 Opts.ARCMTMigrateReportOut 1445 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1446 Opts.ARCMTMigrateEmitARCErrors 1447 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1448 1449 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1450 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1451 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1452 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1453 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1454 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1455 if (Args.hasArg(OPT_objcmt_migrate_property)) 1456 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1457 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1458 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1459 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1460 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1461 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1462 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1463 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1464 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1465 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1466 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1467 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1468 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1469 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1470 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1471 if (Args.hasArg(OPT_objcmt_atomic_property)) 1472 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1473 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1474 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1475 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1476 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1477 if (Args.hasArg(OPT_objcmt_migrate_all)) 1478 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1479 1480 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1481 1482 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1483 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1484 Diags.Report(diag::err_drv_argument_not_allowed_with) 1485 << "ARC migration" << "ObjC migration"; 1486 } 1487 1488 InputKind DashX(InputKind::Unknown); 1489 if (const Arg *A = Args.getLastArg(OPT_x)) { 1490 StringRef XValue = A->getValue(); 1491 1492 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1493 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1494 bool Preprocessed = XValue.consume_back("-cpp-output"); 1495 bool ModuleMap = XValue.consume_back("-module-map"); 1496 IsHeaderFile = 1497 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1498 1499 // Principal languages. 1500 DashX = llvm::StringSwitch<InputKind>(XValue) 1501 .Case("c", InputKind::C) 1502 .Case("cl", InputKind::OpenCL) 1503 .Case("cuda", InputKind::CUDA) 1504 .Case("c++", InputKind::CXX) 1505 .Case("objective-c", InputKind::ObjC) 1506 .Case("objective-c++", InputKind::ObjCXX) 1507 .Case("renderscript", InputKind::RenderScript) 1508 .Default(InputKind::Unknown); 1509 1510 // "objc[++]-cpp-output" is an acceptable synonym for 1511 // "objective-c[++]-cpp-output". 1512 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1513 DashX = llvm::StringSwitch<InputKind>(XValue) 1514 .Case("objc", InputKind::ObjC) 1515 .Case("objc++", InputKind::ObjCXX) 1516 .Default(InputKind::Unknown); 1517 1518 // Some special cases cannot be combined with suffixes. 1519 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1520 DashX = llvm::StringSwitch<InputKind>(XValue) 1521 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1522 .Case("assembler-with-cpp", InputKind::Asm) 1523 .Cases("ast", "pcm", 1524 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1525 .Case("ir", InputKind::LLVM_IR) 1526 .Default(InputKind::Unknown); 1527 1528 if (DashX.isUnknown()) 1529 Diags.Report(diag::err_drv_invalid_value) 1530 << A->getAsString(Args) << A->getValue(); 1531 1532 if (Preprocessed) 1533 DashX = DashX.getPreprocessed(); 1534 if (ModuleMap) 1535 DashX = DashX.withFormat(InputKind::ModuleMap); 1536 } 1537 1538 // '-' is the default input if none is given. 1539 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1540 Opts.Inputs.clear(); 1541 if (Inputs.empty()) 1542 Inputs.push_back("-"); 1543 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1544 InputKind IK = DashX; 1545 if (IK.isUnknown()) { 1546 IK = FrontendOptions::getInputKindForExtension( 1547 StringRef(Inputs[i]).rsplit('.').second); 1548 // FIXME: Warn on this? 1549 if (IK.isUnknown()) 1550 IK = InputKind::C; 1551 // FIXME: Remove this hack. 1552 if (i == 0) 1553 DashX = IK; 1554 } 1555 1556 // The -emit-module action implicitly takes a module map. 1557 if (Opts.ProgramAction == frontend::GenerateModule && 1558 IK.getFormat() == InputKind::Source) 1559 IK = IK.withFormat(InputKind::ModuleMap); 1560 1561 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1562 } 1563 1564 return DashX; 1565 } 1566 1567 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1568 void *MainAddr) { 1569 std::string ClangExecutable = 1570 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1571 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1572 1573 // Compute the path to the resource directory. 1574 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1575 SmallString<128> P(Dir); 1576 if (ClangResourceDir != "") 1577 llvm::sys::path::append(P, ClangResourceDir); 1578 else 1579 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1580 "clang", CLANG_VERSION_STRING); 1581 1582 return P.str(); 1583 } 1584 1585 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1586 const std::string &WorkingDir) { 1587 using namespace options; 1588 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1589 Opts.Verbose = Args.hasArg(OPT_v); 1590 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1591 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1592 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1593 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1594 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1595 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1596 1597 // Canonicalize -fmodules-cache-path before storing it. 1598 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1599 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1600 if (WorkingDir.empty()) 1601 llvm::sys::fs::make_absolute(P); 1602 else 1603 llvm::sys::fs::make_absolute(WorkingDir, P); 1604 } 1605 llvm::sys::path::remove_dots(P); 1606 Opts.ModuleCachePath = P.str(); 1607 1608 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1609 // Only the -fmodule-file=<name>=<file> form. 1610 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1611 StringRef Val = A->getValue(); 1612 if (Val.find('=') != StringRef::npos) 1613 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1614 } 1615 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1616 Opts.AddPrebuiltModulePath(A->getValue()); 1617 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1618 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1619 Opts.ModulesValidateDiagnosticOptions = 1620 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1621 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1622 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1623 Opts.ModuleCachePruneInterval = 1624 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1625 Opts.ModuleCachePruneAfter = 1626 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1627 Opts.ModulesValidateOncePerBuildSession = 1628 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1629 Opts.BuildSessionTimestamp = 1630 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1631 Opts.ModulesValidateSystemHeaders = 1632 Args.hasArg(OPT_fmodules_validate_system_headers); 1633 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1634 Opts.ModuleFormat = A->getValue(); 1635 1636 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1637 StringRef MacroDef = A->getValue(); 1638 Opts.ModulesIgnoreMacros.insert( 1639 llvm::CachedHashString(MacroDef.split('=').first)); 1640 } 1641 1642 // Add -I..., -F..., and -index-header-map options in order. 1643 bool IsIndexHeaderMap = false; 1644 bool IsSysrootSpecified = 1645 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1646 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1647 if (A->getOption().matches(OPT_index_header_map)) { 1648 // -index-header-map applies to the next -I or -F. 1649 IsIndexHeaderMap = true; 1650 continue; 1651 } 1652 1653 frontend::IncludeDirGroup Group = 1654 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1655 1656 bool IsFramework = A->getOption().matches(OPT_F); 1657 std::string Path = A->getValue(); 1658 1659 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1660 SmallString<32> Buffer; 1661 llvm::sys::path::append(Buffer, Opts.Sysroot, 1662 llvm::StringRef(A->getValue()).substr(1)); 1663 Path = Buffer.str(); 1664 } 1665 1666 Opts.AddPath(Path, Group, IsFramework, 1667 /*IgnoreSysroot*/ true); 1668 IsIndexHeaderMap = false; 1669 } 1670 1671 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1672 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1673 for (const Arg *A : 1674 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1675 if (A->getOption().matches(OPT_iprefix)) 1676 Prefix = A->getValue(); 1677 else if (A->getOption().matches(OPT_iwithprefix)) 1678 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1679 else 1680 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1681 } 1682 1683 for (const Arg *A : Args.filtered(OPT_idirafter)) 1684 Opts.AddPath(A->getValue(), frontend::After, false, true); 1685 for (const Arg *A : Args.filtered(OPT_iquote)) 1686 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1687 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1688 Opts.AddPath(A->getValue(), frontend::System, false, 1689 !A->getOption().matches(OPT_iwithsysroot)); 1690 for (const Arg *A : Args.filtered(OPT_iframework)) 1691 Opts.AddPath(A->getValue(), frontend::System, true, true); 1692 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot)) 1693 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1694 /*IgnoreSysRoot=*/false); 1695 1696 // Add the paths for the various language specific isystem flags. 1697 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1698 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1699 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1700 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1701 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1702 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1703 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1704 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1705 1706 // Add the internal paths from a driver that detects standard include paths. 1707 for (const Arg *A : 1708 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1709 frontend::IncludeDirGroup Group = frontend::System; 1710 if (A->getOption().matches(OPT_internal_externc_isystem)) 1711 Group = frontend::ExternCSystem; 1712 Opts.AddPath(A->getValue(), Group, false, true); 1713 } 1714 1715 // Add the path prefixes which are implicitly treated as being system headers. 1716 for (const Arg *A : 1717 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1718 Opts.AddSystemHeaderPrefix( 1719 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1720 1721 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1722 Opts.AddVFSOverlayFile(A->getValue()); 1723 } 1724 1725 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1726 const llvm::Triple &T, 1727 PreprocessorOptions &PPOpts, 1728 LangStandard::Kind LangStd) { 1729 // Set some properties which depend solely on the input kind; it would be nice 1730 // to move these to the language standard, and have the driver resolve the 1731 // input kind + language standard. 1732 // 1733 // FIXME: Perhaps a better model would be for a single source file to have 1734 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 1735 // simultaneously active? 1736 if (IK.getLanguage() == InputKind::Asm) { 1737 Opts.AsmPreprocessor = 1; 1738 } else if (IK.isObjectiveC()) { 1739 Opts.ObjC1 = Opts.ObjC2 = 1; 1740 } 1741 1742 if (LangStd == LangStandard::lang_unspecified) { 1743 // Based on the base language, pick one. 1744 switch (IK.getLanguage()) { 1745 case InputKind::Unknown: 1746 case InputKind::LLVM_IR: 1747 llvm_unreachable("Invalid input kind!"); 1748 case InputKind::OpenCL: 1749 LangStd = LangStandard::lang_opencl10; 1750 break; 1751 case InputKind::CUDA: 1752 LangStd = LangStandard::lang_cuda; 1753 break; 1754 case InputKind::Asm: 1755 case InputKind::C: 1756 // The PS4 uses C99 as the default C standard. 1757 if (T.isPS4()) 1758 LangStd = LangStandard::lang_gnu99; 1759 else 1760 LangStd = LangStandard::lang_gnu11; 1761 break; 1762 case InputKind::ObjC: 1763 LangStd = LangStandard::lang_gnu11; 1764 break; 1765 case InputKind::CXX: 1766 case InputKind::ObjCXX: 1767 LangStd = LangStandard::lang_gnucxx14; 1768 break; 1769 case InputKind::RenderScript: 1770 LangStd = LangStandard::lang_c99; 1771 break; 1772 } 1773 } 1774 1775 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1776 Opts.LineComment = Std.hasLineComments(); 1777 Opts.C99 = Std.isC99(); 1778 Opts.C11 = Std.isC11(); 1779 Opts.C17 = Std.isC17(); 1780 Opts.CPlusPlus = Std.isCPlusPlus(); 1781 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1782 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1783 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 1784 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 1785 Opts.Digraphs = Std.hasDigraphs(); 1786 Opts.GNUMode = Std.isGNUMode(); 1787 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 1788 Opts.HexFloats = Std.hasHexFloats(); 1789 Opts.ImplicitInt = Std.hasImplicitInt(); 1790 1791 // Set OpenCL Version. 1792 Opts.OpenCL = Std.isOpenCL(); 1793 if (LangStd == LangStandard::lang_opencl10) 1794 Opts.OpenCLVersion = 100; 1795 else if (LangStd == LangStandard::lang_opencl11) 1796 Opts.OpenCLVersion = 110; 1797 else if (LangStd == LangStandard::lang_opencl12) 1798 Opts.OpenCLVersion = 120; 1799 else if (LangStd == LangStandard::lang_opencl20) 1800 Opts.OpenCLVersion = 200; 1801 1802 // OpenCL has some additional defaults. 1803 if (Opts.OpenCL) { 1804 Opts.AltiVec = 0; 1805 Opts.ZVector = 0; 1806 Opts.LaxVectorConversions = 0; 1807 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 1808 Opts.NativeHalfType = 1; 1809 Opts.NativeHalfArgsAndReturns = 1; 1810 // Include default header file for OpenCL. 1811 if (Opts.IncludeDefaultHeader) { 1812 PPOpts.Includes.push_back("opencl-c.h"); 1813 } 1814 } 1815 1816 Opts.CUDA = IK.getLanguage() == InputKind::CUDA; 1817 if (Opts.CUDA) 1818 // Set default FP_CONTRACT to FAST. 1819 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 1820 1821 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 1822 if (Opts.RenderScript) { 1823 Opts.NativeHalfType = 1; 1824 Opts.NativeHalfArgsAndReturns = 1; 1825 } 1826 1827 // OpenCL and C++ both have bool, true, false keywords. 1828 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1829 1830 // OpenCL has half keyword 1831 Opts.Half = Opts.OpenCL; 1832 1833 // C++ has wchar_t keyword. 1834 Opts.WChar = Opts.CPlusPlus; 1835 1836 Opts.GNUKeywords = Opts.GNUMode; 1837 Opts.CXXOperatorNames = Opts.CPlusPlus; 1838 1839 Opts.AlignedAllocation = Opts.CPlusPlus17; 1840 1841 Opts.DollarIdents = !Opts.AsmPreprocessor; 1842 } 1843 1844 /// Attempt to parse a visibility value out of the given argument. 1845 static Visibility parseVisibility(Arg *arg, ArgList &args, 1846 DiagnosticsEngine &diags) { 1847 StringRef value = arg->getValue(); 1848 if (value == "default") { 1849 return DefaultVisibility; 1850 } else if (value == "hidden" || value == "internal") { 1851 return HiddenVisibility; 1852 } else if (value == "protected") { 1853 // FIXME: diagnose if target does not support protected visibility 1854 return ProtectedVisibility; 1855 } 1856 1857 diags.Report(diag::err_drv_invalid_value) 1858 << arg->getAsString(args) << value; 1859 return DefaultVisibility; 1860 } 1861 1862 /// Check if input file kind and language standard are compatible. 1863 static bool IsInputCompatibleWithStandard(InputKind IK, 1864 const LangStandard &S) { 1865 switch (IK.getLanguage()) { 1866 case InputKind::Unknown: 1867 case InputKind::LLVM_IR: 1868 llvm_unreachable("should not parse language flags for this input"); 1869 1870 case InputKind::C: 1871 case InputKind::ObjC: 1872 case InputKind::RenderScript: 1873 return S.getLanguage() == InputKind::C; 1874 1875 case InputKind::OpenCL: 1876 return S.getLanguage() == InputKind::OpenCL; 1877 1878 case InputKind::CXX: 1879 case InputKind::ObjCXX: 1880 return S.getLanguage() == InputKind::CXX; 1881 1882 case InputKind::CUDA: 1883 // FIXME: What -std= values should be permitted for CUDA compilations? 1884 return S.getLanguage() == InputKind::CUDA || 1885 S.getLanguage() == InputKind::CXX; 1886 1887 case InputKind::Asm: 1888 // Accept (and ignore) all -std= values. 1889 // FIXME: The -std= value is not ignored; it affects the tokenization 1890 // and preprocessing rules if we're preprocessing this asm input. 1891 return true; 1892 } 1893 1894 llvm_unreachable("unexpected input language"); 1895 } 1896 1897 /// Get language name for given input kind. 1898 static const StringRef GetInputKindName(InputKind IK) { 1899 switch (IK.getLanguage()) { 1900 case InputKind::C: 1901 return "C"; 1902 case InputKind::ObjC: 1903 return "Objective-C"; 1904 case InputKind::CXX: 1905 return "C++"; 1906 case InputKind::ObjCXX: 1907 return "Objective-C++"; 1908 case InputKind::OpenCL: 1909 return "OpenCL"; 1910 case InputKind::CUDA: 1911 return "CUDA"; 1912 case InputKind::RenderScript: 1913 return "RenderScript"; 1914 1915 case InputKind::Asm: 1916 return "Asm"; 1917 case InputKind::LLVM_IR: 1918 return "LLVM IR"; 1919 1920 case InputKind::Unknown: 1921 break; 1922 } 1923 llvm_unreachable("unknown input language"); 1924 } 1925 1926 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1927 const TargetOptions &TargetOpts, 1928 PreprocessorOptions &PPOpts, 1929 DiagnosticsEngine &Diags) { 1930 // FIXME: Cleanup per-file based stuff. 1931 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1932 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1933 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1934 #define LANGSTANDARD(id, name, lang, desc, features) \ 1935 .Case(name, LangStandard::lang_##id) 1936 #define LANGSTANDARD_ALIAS(id, alias) \ 1937 .Case(alias, LangStandard::lang_##id) 1938 #include "clang/Frontend/LangStandards.def" 1939 .Default(LangStandard::lang_unspecified); 1940 if (LangStd == LangStandard::lang_unspecified) { 1941 Diags.Report(diag::err_drv_invalid_value) 1942 << A->getAsString(Args) << A->getValue(); 1943 // Report supported standards with short description. 1944 for (unsigned KindValue = 0; 1945 KindValue != LangStandard::lang_unspecified; 1946 ++KindValue) { 1947 const LangStandard &Std = LangStandard::getLangStandardForKind( 1948 static_cast<LangStandard::Kind>(KindValue)); 1949 if (IsInputCompatibleWithStandard(IK, Std)) { 1950 auto Diag = Diags.Report(diag::note_drv_use_standard); 1951 Diag << Std.getName() << Std.getDescription(); 1952 unsigned NumAliases = 0; 1953 #define LANGSTANDARD(id, name, lang, desc, features) 1954 #define LANGSTANDARD_ALIAS(id, alias) \ 1955 if (KindValue == LangStandard::lang_##id) ++NumAliases; 1956 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1957 #include "clang/Frontend/LangStandards.def" 1958 Diag << NumAliases; 1959 #define LANGSTANDARD(id, name, lang, desc, features) 1960 #define LANGSTANDARD_ALIAS(id, alias) \ 1961 if (KindValue == LangStandard::lang_##id) Diag << alias; 1962 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1963 #include "clang/Frontend/LangStandards.def" 1964 } 1965 } 1966 } else { 1967 // Valid standard, check to make sure language and standard are 1968 // compatible. 1969 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1970 if (!IsInputCompatibleWithStandard(IK, Std)) { 1971 Diags.Report(diag::err_drv_argument_not_allowed_with) 1972 << A->getAsString(Args) << GetInputKindName(IK); 1973 } 1974 } 1975 } 1976 1977 // -cl-std only applies for OpenCL language standards. 1978 // Override the -std option in this case. 1979 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1980 LangStandard::Kind OpenCLLangStd 1981 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1982 .Cases("cl", "CL", LangStandard::lang_opencl10) 1983 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1984 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1985 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1986 .Default(LangStandard::lang_unspecified); 1987 1988 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1989 Diags.Report(diag::err_drv_invalid_value) 1990 << A->getAsString(Args) << A->getValue(); 1991 } 1992 else 1993 LangStd = OpenCLLangStd; 1994 } 1995 1996 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1997 1998 llvm::Triple T(TargetOpts.Triple); 1999 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2000 2001 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2002 // This option should be deprecated for CL > 1.0 because 2003 // this option was added for compatibility with OpenCL 1.0. 2004 if (Args.getLastArg(OPT_cl_strict_aliasing) 2005 && Opts.OpenCLVersion > 100) { 2006 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 2007 std::string(".") + 2008 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 2009 Diags.Report(diag::warn_option_invalid_ocl_version) 2010 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2011 } 2012 2013 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2014 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2015 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2016 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2017 // name, as it doesn't seem a useful distinction. 2018 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2019 Opts.GNUKeywords); 2020 2021 if (Args.hasArg(OPT_fno_operator_names)) 2022 Opts.CXXOperatorNames = 0; 2023 2024 if (Args.hasArg(OPT_fcuda_is_device)) 2025 Opts.CUDAIsDevice = 1; 2026 2027 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2028 Opts.CUDAAllowVariadicFunctions = 1; 2029 2030 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2031 Opts.CUDAHostDeviceConstexpr = 0; 2032 2033 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 2034 Opts.CUDADeviceFlushDenormalsToZero = 1; 2035 2036 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2037 Opts.CUDADeviceApproxTranscendentals = 1; 2038 2039 if (Opts.ObjC1) { 2040 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2041 StringRef value = arg->getValue(); 2042 if (Opts.ObjCRuntime.tryParse(value)) 2043 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2044 } 2045 2046 if (Args.hasArg(OPT_fobjc_gc_only)) 2047 Opts.setGC(LangOptions::GCOnly); 2048 else if (Args.hasArg(OPT_fobjc_gc)) 2049 Opts.setGC(LangOptions::HybridGC); 2050 else if (Args.hasArg(OPT_fobjc_arc)) { 2051 Opts.ObjCAutoRefCount = 1; 2052 if (!Opts.ObjCRuntime.allowsARC()) 2053 Diags.Report(diag::err_arc_unsupported_on_runtime); 2054 } 2055 2056 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2057 // whether the feature is actually enabled. This is predominantly 2058 // determined by -fobjc-runtime, but we allow it to be overridden 2059 // from the command line for testing purposes. 2060 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2061 Opts.ObjCWeakRuntime = 1; 2062 else 2063 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2064 2065 // ObjCWeak determines whether __weak is actually enabled. 2066 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2067 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2068 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2069 assert(!Opts.ObjCWeak); 2070 } else if (Opts.getGC() != LangOptions::NonGC) { 2071 Diags.Report(diag::err_objc_weak_with_gc); 2072 } else if (!Opts.ObjCWeakRuntime) { 2073 Diags.Report(diag::err_objc_weak_unsupported); 2074 } else { 2075 Opts.ObjCWeak = 1; 2076 } 2077 } else if (Opts.ObjCAutoRefCount) { 2078 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2079 } 2080 2081 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2082 Opts.ObjCInferRelatedResultType = 0; 2083 2084 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2085 Opts.ObjCSubscriptingLegacyRuntime = 2086 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2087 } 2088 2089 if (Args.hasArg(OPT_fgnu89_inline)) { 2090 if (Opts.CPlusPlus) 2091 Diags.Report(diag::err_drv_argument_not_allowed_with) 2092 << "-fgnu89-inline" << GetInputKindName(IK); 2093 else 2094 Opts.GNUInline = 1; 2095 } 2096 2097 if (Args.hasArg(OPT_fapple_kext)) { 2098 if (!Opts.CPlusPlus) 2099 Diags.Report(diag::warn_c_kext); 2100 else 2101 Opts.AppleKext = 1; 2102 } 2103 2104 if (Args.hasArg(OPT_print_ivar_layout)) 2105 Opts.ObjCGCBitmapPrint = 1; 2106 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2107 Opts.NoConstantCFStrings = 1; 2108 2109 if (Args.hasArg(OPT_fzvector)) 2110 Opts.ZVector = 1; 2111 2112 if (Args.hasArg(OPT_pthread)) 2113 Opts.POSIXThreads = 1; 2114 2115 // The value-visibility mode defaults to "default". 2116 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2117 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2118 } else { 2119 Opts.setValueVisibilityMode(DefaultVisibility); 2120 } 2121 2122 // The type-visibility mode defaults to the value-visibility mode. 2123 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2124 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2125 } else { 2126 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2127 } 2128 2129 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2130 Opts.InlineVisibilityHidden = 1; 2131 2132 if (Args.hasArg(OPT_ftrapv)) { 2133 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2134 // Set the handler, if one is specified. 2135 Opts.OverflowHandler = 2136 Args.getLastArgValue(OPT_ftrapv_handler); 2137 } 2138 else if (Args.hasArg(OPT_fwrapv)) 2139 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2140 2141 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2142 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2143 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2144 Opts.MSCompatibilityVersion = 0; 2145 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2146 VersionTuple VT; 2147 if (VT.tryParse(A->getValue())) 2148 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2149 << A->getValue(); 2150 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2151 VT.getMinor().getValueOr(0) * 100000 + 2152 VT.getSubminor().getValueOr(0); 2153 } 2154 2155 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 2156 // is specified, or -std is set to a conforming mode. 2157 // Trigraphs are disabled by default in c++1z onwards. 2158 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2159 Opts.Trigraphs = 2160 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2161 2162 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2163 OPT_fno_dollars_in_identifiers, 2164 Opts.DollarIdents); 2165 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2166 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2167 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2168 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2169 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2170 Opts.ConstStrings); 2171 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2172 Opts.LaxVectorConversions = 0; 2173 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2174 Opts.ThreadsafeStatics = 0; 2175 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2176 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2177 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2178 2179 // Handle exception personalities 2180 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2181 options::OPT_fseh_exceptions, 2182 options::OPT_fdwarf_exceptions); 2183 if (A) { 2184 const Option &Opt = A->getOption(); 2185 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2186 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2187 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2188 } 2189 2190 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2191 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2192 2193 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2194 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2195 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2196 && Opts.OpenCLVersion >= 200); 2197 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2198 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2199 2200 // Enable [[]] attributes in C++11 by default. 2201 Opts.DoubleSquareBracketAttributes = 2202 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2203 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11); 2204 2205 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2206 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2207 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2208 Opts.ModulesDeclUse = 2209 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2210 Opts.ModulesLocalVisibility = 2211 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2212 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2213 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2214 Opts.ModulesSearchAll = Opts.Modules && 2215 !Args.hasArg(OPT_fno_modules_search_all) && 2216 Args.hasArg(OPT_fmodules_search_all); 2217 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2218 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2219 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2220 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2221 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2222 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2223 .Case("char", 1) 2224 .Case("short", 2) 2225 .Case("int", 4) 2226 .Default(0); 2227 if (Opts.WCharSize == 0) 2228 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2229 } 2230 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2231 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2232 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2233 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2234 if (!Opts.NoBuiltin) 2235 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2236 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2237 Opts.RelaxedTemplateTemplateArgs = 2238 Args.hasArg(OPT_frelaxed_template_template_args); 2239 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2240 Opts.AlignedAllocation = 2241 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2242 Opts.AlignedAllocation); 2243 Opts.AlignedAllocationUnavailable = 2244 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2245 Opts.NewAlignOverride = 2246 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2247 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2248 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2249 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2250 << A->getValue(); 2251 Opts.NewAlignOverride = 0; 2252 } 2253 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2254 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2255 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2256 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2257 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2258 Opts.InstantiationDepth = 2259 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2260 Opts.ArrowDepth = 2261 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2262 Opts.ConstexprCallDepth = 2263 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2264 Opts.ConstexprStepLimit = 2265 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2266 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2267 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2268 Opts.NumLargeByValueCopy = 2269 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2270 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2271 Opts.ObjCConstantStringClass = 2272 Args.getLastArgValue(OPT_fconstant_string_class); 2273 Opts.ObjCDefaultSynthProperties = 2274 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2275 Opts.EncodeExtendedBlockSig = 2276 Args.hasArg(OPT_fencode_extended_block_signature); 2277 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2278 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2279 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2280 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2281 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2282 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2283 Opts.Static = Args.hasArg(OPT_static_define); 2284 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2285 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2286 || Args.hasArg(OPT_fdump_record_layouts); 2287 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2288 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2289 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2290 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2291 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2292 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2293 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2294 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2295 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2296 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2297 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2298 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2299 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2300 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2301 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2302 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2303 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2304 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2305 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2306 // is enabled. 2307 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2308 | Opts.NativeHalfArgsAndReturns; 2309 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2310 2311 // __declspec is enabled by default for the PS4 by the driver, and also 2312 // enabled for Microsoft Extensions or Borland Extensions, here. 2313 // 2314 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2315 // CUDA extension. However, it is required for supporting 2316 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2317 // been rewritten in terms of something more generic, remove the Opts.CUDA 2318 // term here. 2319 Opts.DeclSpecKeyword = 2320 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2321 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2322 2323 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2324 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2325 .Case("target", LangOptions::ASMM_Target) 2326 .Case("no", LangOptions::ASMM_Off) 2327 .Case("yes", LangOptions::ASMM_On) 2328 .Default(255)) { 2329 default: 2330 Diags.Report(diag::err_drv_invalid_value) 2331 << "-faddress-space-map-mangling=" << A->getValue(); 2332 break; 2333 case LangOptions::ASMM_Target: 2334 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2335 break; 2336 case LangOptions::ASMM_On: 2337 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2338 break; 2339 case LangOptions::ASMM_Off: 2340 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2341 break; 2342 } 2343 } 2344 2345 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2346 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2347 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2348 A->getValue()) 2349 .Case("single", 2350 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2351 .Case("multiple", 2352 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2353 .Case("virtual", 2354 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2355 .Default(LangOptions::PPTMK_BestCase); 2356 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2357 Diags.Report(diag::err_drv_invalid_value) 2358 << "-fms-memptr-rep=" << A->getValue(); 2359 2360 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2361 } 2362 2363 // Check for MS default calling conventions being specified. 2364 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2365 LangOptions::DefaultCallingConvention DefaultCC = 2366 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2367 .Case("cdecl", LangOptions::DCC_CDecl) 2368 .Case("fastcall", LangOptions::DCC_FastCall) 2369 .Case("stdcall", LangOptions::DCC_StdCall) 2370 .Case("vectorcall", LangOptions::DCC_VectorCall) 2371 .Case("regcall", LangOptions::DCC_RegCall) 2372 .Default(LangOptions::DCC_None); 2373 if (DefaultCC == LangOptions::DCC_None) 2374 Diags.Report(diag::err_drv_invalid_value) 2375 << "-fdefault-calling-conv=" << A->getValue(); 2376 2377 llvm::Triple T(TargetOpts.Triple); 2378 llvm::Triple::ArchType Arch = T.getArch(); 2379 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2380 DefaultCC == LangOptions::DCC_StdCall) && 2381 Arch != llvm::Triple::x86; 2382 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2383 DefaultCC == LangOptions::DCC_RegCall) && 2384 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2385 if (emitError) 2386 Diags.Report(diag::err_drv_argument_not_allowed_with) 2387 << A->getSpelling() << T.getTriple(); 2388 else 2389 Opts.setDefaultCallingConv(DefaultCC); 2390 } 2391 2392 // -mrtd option 2393 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2394 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2395 Diags.Report(diag::err_drv_argument_not_allowed_with) 2396 << A->getSpelling() << "-fdefault-calling-conv"; 2397 else { 2398 llvm::Triple T(TargetOpts.Triple); 2399 if (T.getArch() != llvm::Triple::x86) 2400 Diags.Report(diag::err_drv_argument_not_allowed_with) 2401 << A->getSpelling() << T.getTriple(); 2402 else 2403 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2404 } 2405 } 2406 2407 // Check if -fopenmp is specified. 2408 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2409 Opts.OpenMPUseTLS = 2410 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2411 Opts.OpenMPIsDevice = 2412 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2413 2414 if (Opts.OpenMP) { 2415 int Version = 2416 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2417 if (Version != 0) 2418 Opts.OpenMP = Version; 2419 // Provide diagnostic when a given target is not expected to be an OpenMP 2420 // device or host. 2421 if (!Opts.OpenMPIsDevice) { 2422 switch (T.getArch()) { 2423 default: 2424 break; 2425 // Add unsupported host targets here: 2426 case llvm::Triple::nvptx: 2427 case llvm::Triple::nvptx64: 2428 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2429 << TargetOpts.Triple; 2430 break; 2431 } 2432 } 2433 } 2434 2435 // Set the flag to prevent the implementation from emitting device exception 2436 // handling code for those requiring so. 2437 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2438 Opts.Exceptions = 0; 2439 Opts.CXXExceptions = 0; 2440 } 2441 2442 // Get the OpenMP target triples if any. 2443 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2444 2445 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2446 llvm::Triple TT(A->getValue(i)); 2447 2448 if (TT.getArch() == llvm::Triple::UnknownArch || 2449 !(TT.getArch() == llvm::Triple::ppc || 2450 TT.getArch() == llvm::Triple::ppc64 || 2451 TT.getArch() == llvm::Triple::ppc64le || 2452 TT.getArch() == llvm::Triple::nvptx || 2453 TT.getArch() == llvm::Triple::nvptx64 || 2454 TT.getArch() == llvm::Triple::x86 || 2455 TT.getArch() == llvm::Triple::x86_64)) 2456 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2457 else 2458 Opts.OMPTargetTriples.push_back(TT); 2459 } 2460 } 2461 2462 // Get OpenMP host file path if any and report if a non existent file is 2463 // found 2464 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2465 Opts.OMPHostIRFile = A->getValue(); 2466 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2467 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2468 << Opts.OMPHostIRFile; 2469 } 2470 2471 // Record whether the __DEPRECATED define was requested. 2472 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2473 OPT_fno_deprecated_macro, 2474 Opts.Deprecated); 2475 2476 // FIXME: Eliminate this dependency. 2477 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2478 OptSize = getOptimizationLevelSize(Args); 2479 Opts.Optimize = Opt != 0; 2480 Opts.OptimizeSize = OptSize != 0; 2481 2482 // This is the __NO_INLINE__ define, which just depends on things like the 2483 // optimization level and -fno-inline, not actually whether the backend has 2484 // inlining enabled. 2485 Opts.NoInlineDefine = !Opts.Optimize; 2486 if (Arg *InlineArg = Args.getLastArg( 2487 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2488 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2489 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2490 Opts.NoInlineDefine = true; 2491 2492 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2493 Args.hasArg(OPT_cl_fast_relaxed_math); 2494 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2495 Args.hasArg(OPT_cl_finite_math_only) || 2496 Args.hasArg(OPT_cl_fast_relaxed_math); 2497 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2498 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2499 Args.hasArg(OPT_cl_fast_relaxed_math); 2500 2501 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2502 StringRef Val = A->getValue(); 2503 if (Val == "fast") 2504 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2505 else if (Val == "on") 2506 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2507 else if (Val == "off") 2508 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2509 else 2510 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2511 } 2512 2513 Opts.RetainCommentsFromSystemHeaders = 2514 Args.hasArg(OPT_fretain_comments_from_system_headers); 2515 2516 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2517 switch (SSP) { 2518 default: 2519 Diags.Report(diag::err_drv_invalid_value) 2520 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2521 break; 2522 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2523 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2524 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2525 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2526 } 2527 2528 // Parse -fsanitize= arguments. 2529 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2530 Diags, Opts.Sanitize); 2531 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2532 Opts.SanitizeAddressFieldPadding = 2533 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2534 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2535 2536 // -fxray-instrument 2537 Opts.XRayInstrument = 2538 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2539 2540 // -fxray-always-emit-customevents 2541 Opts.XRayAlwaysEmitCustomEvents = 2542 Args.hasFlag(OPT_fxray_always_emit_customevents, 2543 OPT_fnoxray_always_emit_customevents, false); 2544 2545 // -fxray-{always,never}-instrument= filenames. 2546 Opts.XRayAlwaysInstrumentFiles = 2547 Args.getAllArgValues(OPT_fxray_always_instrument); 2548 Opts.XRayNeverInstrumentFiles = 2549 Args.getAllArgValues(OPT_fxray_never_instrument); 2550 2551 // -fallow-editor-placeholders 2552 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2553 } 2554 2555 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 2556 switch (Action) { 2557 case frontend::ASTDeclList: 2558 case frontend::ASTDump: 2559 case frontend::ASTPrint: 2560 case frontend::ASTView: 2561 case frontend::EmitAssembly: 2562 case frontend::EmitBC: 2563 case frontend::EmitHTML: 2564 case frontend::EmitLLVM: 2565 case frontend::EmitLLVMOnly: 2566 case frontend::EmitCodeGenOnly: 2567 case frontend::EmitObj: 2568 case frontend::FixIt: 2569 case frontend::GenerateModule: 2570 case frontend::GenerateModuleInterface: 2571 case frontend::GeneratePCH: 2572 case frontend::GeneratePTH: 2573 case frontend::ParseSyntaxOnly: 2574 case frontend::ModuleFileInfo: 2575 case frontend::VerifyPCH: 2576 case frontend::PluginAction: 2577 case frontend::PrintDeclContext: 2578 case frontend::RewriteObjC: 2579 case frontend::RewriteTest: 2580 case frontend::RunAnalysis: 2581 case frontend::MigrateSource: 2582 return false; 2583 2584 case frontend::DumpRawTokens: 2585 case frontend::DumpTokens: 2586 case frontend::InitOnly: 2587 case frontend::PrintPreamble: 2588 case frontend::PrintPreprocessedInput: 2589 case frontend::RewriteMacros: 2590 case frontend::RunPreprocessorOnly: 2591 return true; 2592 } 2593 llvm_unreachable("invalid frontend action"); 2594 } 2595 2596 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2597 FileManager &FileMgr, 2598 DiagnosticsEngine &Diags, 2599 frontend::ActionKind Action) { 2600 using namespace options; 2601 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2602 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2603 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2604 Opts.TokenCache = A->getValue(); 2605 else 2606 Opts.TokenCache = Opts.ImplicitPTHInclude; 2607 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2608 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2609 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2610 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 2611 2612 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2613 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2614 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2615 2616 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2617 StringRef Value(A->getValue()); 2618 size_t Comma = Value.find(','); 2619 unsigned Bytes = 0; 2620 unsigned EndOfLine = 0; 2621 2622 if (Comma == StringRef::npos || 2623 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2624 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2625 Diags.Report(diag::err_drv_preamble_format); 2626 else { 2627 Opts.PrecompiledPreambleBytes.first = Bytes; 2628 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2629 } 2630 } 2631 2632 // Add macros from the command line. 2633 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2634 if (A->getOption().matches(OPT_D)) 2635 Opts.addMacroDef(A->getValue()); 2636 else 2637 Opts.addMacroUndef(A->getValue()); 2638 } 2639 2640 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2641 2642 // Add the ordered list of -includes. 2643 for (const Arg *A : Args.filtered(OPT_include)) 2644 Opts.Includes.emplace_back(A->getValue()); 2645 2646 for (const Arg *A : Args.filtered(OPT_chain_include)) 2647 Opts.ChainedIncludes.emplace_back(A->getValue()); 2648 2649 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2650 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2651 2652 if (Split.second.empty()) { 2653 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2654 continue; 2655 } 2656 2657 Opts.addRemappedFile(Split.first, Split.second); 2658 } 2659 2660 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2661 StringRef Name = A->getValue(); 2662 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2663 .Case("libc++", ARCXX_libcxx) 2664 .Case("libstdc++", ARCXX_libstdcxx) 2665 .Case("none", ARCXX_nolib) 2666 .Default(~0U); 2667 if (Library == ~0U) 2668 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2669 else 2670 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2671 } 2672 2673 // Always avoid lexing editor placeholders when we're just running the 2674 // preprocessor as we never want to emit the 2675 // "editor placeholder in source file" error in PP only mode. 2676 if (isStrictlyPreprocessorAction(Action)) 2677 Opts.LexEditorPlaceholders = false; 2678 } 2679 2680 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2681 ArgList &Args, 2682 frontend::ActionKind Action) { 2683 using namespace options; 2684 2685 if (isStrictlyPreprocessorAction(Action)) 2686 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2687 else 2688 Opts.ShowCPP = 0; 2689 2690 Opts.ShowComments = Args.hasArg(OPT_C); 2691 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2692 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2693 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2694 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2695 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2696 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 2697 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2698 } 2699 2700 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2701 DiagnosticsEngine &Diags) { 2702 using namespace options; 2703 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2704 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2705 StringRef Value = A->getValue(); 2706 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2707 .Case("default", llvm::EABI::Default) 2708 .Case("4", llvm::EABI::EABI4) 2709 .Case("5", llvm::EABI::EABI5) 2710 .Case("gnu", llvm::EABI::GNU) 2711 .Default(llvm::EABI::Unknown); 2712 if (EABIVersion == llvm::EABI::Unknown) 2713 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2714 << Value; 2715 else 2716 Opts.EABIVersion = EABIVersion; 2717 } 2718 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2719 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2720 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2721 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2722 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2723 // Use the default target triple if unspecified. 2724 if (Opts.Triple.empty()) 2725 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2726 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2727 } 2728 2729 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2730 const char *const *ArgBegin, 2731 const char *const *ArgEnd, 2732 DiagnosticsEngine &Diags) { 2733 bool Success = true; 2734 2735 // Parse the arguments. 2736 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2737 const unsigned IncludedFlagsBitmask = options::CC1Option; 2738 unsigned MissingArgIndex, MissingArgCount; 2739 InputArgList Args = 2740 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2741 MissingArgCount, IncludedFlagsBitmask); 2742 LangOptions &LangOpts = *Res.getLangOpts(); 2743 2744 // Check for missing argument error. 2745 if (MissingArgCount) { 2746 Diags.Report(diag::err_drv_missing_argument) 2747 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2748 Success = false; 2749 } 2750 2751 // Issue errors on unknown arguments. 2752 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2753 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2754 Success = false; 2755 } 2756 2757 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2758 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2759 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2760 Success &= 2761 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2762 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2763 ParseCommentArgs(LangOpts.CommentOpts, Args); 2764 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2765 // FIXME: We shouldn't have to pass the DashX option around here 2766 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2767 LangOpts.IsHeaderFile); 2768 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2769 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2770 Res.getTargetOpts()); 2771 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2772 Res.getFileSystemOpts().WorkingDir); 2773 if (DashX.getFormat() == InputKind::Precompiled || 2774 DashX.getLanguage() == InputKind::LLVM_IR) { 2775 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2776 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2777 // what the input type is. 2778 if (Args.hasArg(OPT_fobjc_arc)) 2779 LangOpts.ObjCAutoRefCount = 1; 2780 // PIClevel and PIELevel are needed during code generation and this should be 2781 // set regardless of the input type. 2782 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2783 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2784 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2785 Diags, LangOpts.Sanitize); 2786 } else { 2787 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2788 // FIXME: Should we really be calling this for an InputKind::Asm input? 2789 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2790 Res.getPreprocessorOpts(), Diags); 2791 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2792 LangOpts.ObjCExceptions = 1; 2793 } 2794 2795 if (LangOpts.CUDA) { 2796 // During CUDA device-side compilation, the aux triple is the 2797 // triple used for host compilation. 2798 if (LangOpts.CUDAIsDevice) 2799 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2800 } 2801 2802 // Set the triple of the host for OpenMP device compile. 2803 if (LangOpts.OpenMPIsDevice) 2804 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2805 2806 // FIXME: Override value name discarding when asan or msan is used because the 2807 // backend passes depend on the name of the alloca in order to print out 2808 // names. 2809 Res.getCodeGenOpts().DiscardValueNames &= 2810 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2811 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2812 2813 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2814 // PCH file and find the original header name. Remove the need to do that in 2815 // ParsePreprocessorArgs and remove the FileManager 2816 // parameters from the function and the "FileManager.h" #include. 2817 FileManager FileMgr(Res.getFileSystemOpts()); 2818 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags, 2819 Res.getFrontendOpts().ProgramAction); 2820 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2821 Res.getFrontendOpts().ProgramAction); 2822 2823 // Turn on -Wspir-compat for SPIR target. 2824 llvm::Triple T(Res.getTargetOpts().Triple); 2825 auto Arch = T.getArch(); 2826 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2827 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2828 } 2829 2830 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 2831 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 2832 !Res.getLangOpts()->Sanitize.empty()) { 2833 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 2834 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 2835 } 2836 return Success; 2837 } 2838 2839 std::string CompilerInvocation::getModuleHash() const { 2840 // Note: For QoI reasons, the things we use as a hash here should all be 2841 // dumped via the -module-info flag. 2842 using llvm::hash_code; 2843 using llvm::hash_value; 2844 using llvm::hash_combine; 2845 2846 // Start the signature with the compiler version. 2847 // FIXME: We'd rather use something more cryptographically sound than 2848 // CityHash, but this will do for now. 2849 hash_code code = hash_value(getClangFullRepositoryVersion()); 2850 2851 // Extend the signature with the language options 2852 #define LANGOPT(Name, Bits, Default, Description) \ 2853 code = hash_combine(code, LangOpts->Name); 2854 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2855 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2856 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2857 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2858 #include "clang/Basic/LangOptions.def" 2859 2860 for (StringRef Feature : LangOpts->ModuleFeatures) 2861 code = hash_combine(code, Feature); 2862 2863 // Extend the signature with the target options. 2864 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2865 TargetOpts->ABI); 2866 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2867 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2868 2869 // Extend the signature with preprocessor options. 2870 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2871 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2872 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2873 2874 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2875 I = getPreprocessorOpts().Macros.begin(), 2876 IEnd = getPreprocessorOpts().Macros.end(); 2877 I != IEnd; ++I) { 2878 // If we're supposed to ignore this macro for the purposes of modules, 2879 // don't put it into the hash. 2880 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2881 // Check whether we're ignoring this macro. 2882 StringRef MacroDef = I->first; 2883 if (hsOpts.ModulesIgnoreMacros.count( 2884 llvm::CachedHashString(MacroDef.split('=').first))) 2885 continue; 2886 } 2887 2888 code = hash_combine(code, I->first, I->second); 2889 } 2890 2891 // Extend the signature with the sysroot and other header search options. 2892 code = hash_combine(code, hsOpts.Sysroot, 2893 hsOpts.ModuleFormat, 2894 hsOpts.UseDebugInfo, 2895 hsOpts.UseBuiltinIncludes, 2896 hsOpts.UseStandardSystemIncludes, 2897 hsOpts.UseStandardCXXIncludes, 2898 hsOpts.UseLibcxx, 2899 hsOpts.ModulesValidateDiagnosticOptions); 2900 code = hash_combine(code, hsOpts.ResourceDir); 2901 2902 // Extend the signature with the user build path. 2903 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2904 2905 // Extend the signature with the module file extensions. 2906 const FrontendOptions &frontendOpts = getFrontendOpts(); 2907 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2908 code = ext->hashExtension(code); 2909 } 2910 2911 // Extend the signature with the enabled sanitizers, if at least one is 2912 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 2913 SanitizerSet SanHash = LangOpts->Sanitize; 2914 SanHash.clear(getPPTransparentSanitizers()); 2915 if (!SanHash.empty()) 2916 code = hash_combine(code, SanHash.Mask); 2917 2918 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2919 } 2920 2921 namespace clang { 2922 2923 template<typename IntTy> 2924 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2925 IntTy Default, 2926 DiagnosticsEngine *Diags) { 2927 IntTy Res = Default; 2928 if (Arg *A = Args.getLastArg(Id)) { 2929 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2930 if (Diags) 2931 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2932 << A->getValue(); 2933 } 2934 } 2935 return Res; 2936 } 2937 2938 2939 // Declared in clang/Frontend/Utils.h. 2940 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2941 DiagnosticsEngine *Diags) { 2942 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2943 } 2944 2945 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2946 uint64_t Default, 2947 DiagnosticsEngine *Diags) { 2948 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2949 } 2950 2951 void BuryPointer(const void *Ptr) { 2952 // This function may be called only a small fixed amount of times per each 2953 // invocation, otherwise we do actually have a leak which we want to report. 2954 // If this function is called more than kGraveYardMaxSize times, the pointers 2955 // will not be properly buried and a leak detector will report a leak, which 2956 // is what we want in such case. 2957 static const size_t kGraveYardMaxSize = 16; 2958 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2959 static std::atomic<unsigned> GraveYardSize; 2960 unsigned Idx = GraveYardSize++; 2961 if (Idx >= kGraveYardMaxSize) 2962 return; 2963 GraveYard[Idx] = Ptr; 2964 } 2965 2966 IntrusiveRefCntPtr<vfs::FileSystem> 2967 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2968 DiagnosticsEngine &Diags) { 2969 return createVFSFromCompilerInvocation(CI, Diags, vfs::getRealFileSystem()); 2970 } 2971 2972 IntrusiveRefCntPtr<vfs::FileSystem> 2973 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2974 DiagnosticsEngine &Diags, 2975 IntrusiveRefCntPtr<vfs::FileSystem> BaseFS) { 2976 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2977 return BaseFS; 2978 2979 IntrusiveRefCntPtr<vfs::OverlayFileSystem> Overlay( 2980 new vfs::OverlayFileSystem(BaseFS)); 2981 // earlier vfs files are on the bottom 2982 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2983 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2984 BaseFS->getBufferForFile(File); 2985 if (!Buffer) { 2986 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2987 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2988 } 2989 2990 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2991 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2992 if (!FS.get()) { 2993 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2994 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2995 } 2996 Overlay->pushOverlay(FS); 2997 } 2998 return Overlay; 2999 } 3000 } // end namespace clang 3001