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 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1075 DiagnosticsEngine *Diags, 1076 bool DefaultDiagColor, bool DefaultShowOpt) { 1077 using namespace options; 1078 bool Success = true; 1079 1080 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1081 if (Arg *A = 1082 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1083 Opts.DiagnosticSerializationFile = A->getValue(); 1084 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1085 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1086 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1087 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1088 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1089 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1090 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1091 OPT_fno_show_column, 1092 /*Default=*/true); 1093 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1094 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1095 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1096 Opts.ShowOptionNames = 1097 Args.hasFlag(OPT_fdiagnostics_show_option, 1098 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1099 1100 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1101 1102 // Default behavior is to not to show note include stacks. 1103 Opts.ShowNoteIncludeStack = false; 1104 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1105 OPT_fno_diagnostics_show_note_include_stack)) 1106 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1107 Opts.ShowNoteIncludeStack = true; 1108 1109 StringRef ShowOverloads = 1110 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1111 if (ShowOverloads == "best") 1112 Opts.setShowOverloads(Ovl_Best); 1113 else if (ShowOverloads == "all") 1114 Opts.setShowOverloads(Ovl_All); 1115 else { 1116 Success = false; 1117 if (Diags) 1118 Diags->Report(diag::err_drv_invalid_value) 1119 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1120 << ShowOverloads; 1121 } 1122 1123 StringRef ShowCategory = 1124 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1125 if (ShowCategory == "none") 1126 Opts.ShowCategories = 0; 1127 else if (ShowCategory == "id") 1128 Opts.ShowCategories = 1; 1129 else if (ShowCategory == "name") 1130 Opts.ShowCategories = 2; 1131 else { 1132 Success = false; 1133 if (Diags) 1134 Diags->Report(diag::err_drv_invalid_value) 1135 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1136 << ShowCategory; 1137 } 1138 1139 StringRef Format = 1140 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1141 if (Format == "clang") 1142 Opts.setFormat(DiagnosticOptions::Clang); 1143 else if (Format == "msvc") 1144 Opts.setFormat(DiagnosticOptions::MSVC); 1145 else if (Format == "msvc-fallback") { 1146 Opts.setFormat(DiagnosticOptions::MSVC); 1147 Opts.CLFallbackMode = true; 1148 } else if (Format == "vi") 1149 Opts.setFormat(DiagnosticOptions::Vi); 1150 else { 1151 Success = false; 1152 if (Diags) 1153 Diags->Report(diag::err_drv_invalid_value) 1154 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1155 << Format; 1156 } 1157 1158 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1159 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1160 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1161 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1162 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1163 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1164 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1165 Diags, DiagMask); 1166 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1167 DiagMask = DiagnosticLevelMask::All; 1168 Opts.setVerifyIgnoreUnexpected(DiagMask); 1169 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1170 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1171 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1172 Opts.MacroBacktraceLimit = 1173 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1174 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1175 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1176 Args, OPT_ftemplate_backtrace_limit, 1177 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1178 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1179 Args, OPT_fconstexpr_backtrace_limit, 1180 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1181 Opts.SpellCheckingLimit = getLastArgIntValue( 1182 Args, OPT_fspell_checking_limit, 1183 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1184 Opts.SnippetLineLimit = getLastArgIntValue( 1185 Args, OPT_fcaret_diagnostics_max_lines, 1186 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1187 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1188 DiagnosticOptions::DefaultTabStop, Diags); 1189 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1190 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1191 if (Diags) 1192 Diags->Report(diag::warn_ignoring_ftabstop_value) 1193 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1194 } 1195 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1196 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1197 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1198 1199 return Success; 1200 } 1201 1202 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1203 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1204 } 1205 1206 /// Parse the argument to the -ftest-module-file-extension 1207 /// command-line argument. 1208 /// 1209 /// \returns true on error, false on success. 1210 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1211 std::string &BlockName, 1212 unsigned &MajorVersion, 1213 unsigned &MinorVersion, 1214 bool &Hashed, 1215 std::string &UserInfo) { 1216 SmallVector<StringRef, 5> Args; 1217 Arg.split(Args, ':', 5); 1218 if (Args.size() < 5) 1219 return true; 1220 1221 BlockName = Args[0]; 1222 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1223 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1224 if (Args[3].getAsInteger(2, Hashed)) return true; 1225 if (Args.size() > 4) 1226 UserInfo = Args[4]; 1227 return false; 1228 } 1229 1230 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1231 DiagnosticsEngine &Diags, 1232 bool &IsHeaderFile) { 1233 using namespace options; 1234 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1235 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1236 switch (A->getOption().getID()) { 1237 default: 1238 llvm_unreachable("Invalid option in group!"); 1239 case OPT_ast_list: 1240 Opts.ProgramAction = frontend::ASTDeclList; break; 1241 case OPT_ast_dump: 1242 case OPT_ast_dump_all: 1243 case OPT_ast_dump_lookups: 1244 Opts.ProgramAction = frontend::ASTDump; break; 1245 case OPT_ast_print: 1246 Opts.ProgramAction = frontend::ASTPrint; break; 1247 case OPT_ast_view: 1248 Opts.ProgramAction = frontend::ASTView; break; 1249 case OPT_dump_raw_tokens: 1250 Opts.ProgramAction = frontend::DumpRawTokens; break; 1251 case OPT_dump_tokens: 1252 Opts.ProgramAction = frontend::DumpTokens; break; 1253 case OPT_S: 1254 Opts.ProgramAction = frontend::EmitAssembly; break; 1255 case OPT_emit_llvm_bc: 1256 Opts.ProgramAction = frontend::EmitBC; break; 1257 case OPT_emit_html: 1258 Opts.ProgramAction = frontend::EmitHTML; break; 1259 case OPT_emit_llvm: 1260 Opts.ProgramAction = frontend::EmitLLVM; break; 1261 case OPT_emit_llvm_only: 1262 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1263 case OPT_emit_codegen_only: 1264 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1265 case OPT_emit_obj: 1266 Opts.ProgramAction = frontend::EmitObj; break; 1267 case OPT_fixit_EQ: 1268 Opts.FixItSuffix = A->getValue(); 1269 // fall-through! 1270 case OPT_fixit: 1271 Opts.ProgramAction = frontend::FixIt; break; 1272 case OPT_emit_module: 1273 Opts.ProgramAction = frontend::GenerateModule; break; 1274 case OPT_emit_module_interface: 1275 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1276 case OPT_emit_pch: 1277 Opts.ProgramAction = frontend::GeneratePCH; break; 1278 case OPT_emit_pth: 1279 Opts.ProgramAction = frontend::GeneratePTH; break; 1280 case OPT_init_only: 1281 Opts.ProgramAction = frontend::InitOnly; break; 1282 case OPT_fsyntax_only: 1283 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1284 case OPT_module_file_info: 1285 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1286 case OPT_verify_pch: 1287 Opts.ProgramAction = frontend::VerifyPCH; break; 1288 case OPT_print_decl_contexts: 1289 Opts.ProgramAction = frontend::PrintDeclContext; break; 1290 case OPT_print_preamble: 1291 Opts.ProgramAction = frontend::PrintPreamble; break; 1292 case OPT_E: 1293 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1294 case OPT_rewrite_macros: 1295 Opts.ProgramAction = frontend::RewriteMacros; break; 1296 case OPT_rewrite_objc: 1297 Opts.ProgramAction = frontend::RewriteObjC; break; 1298 case OPT_rewrite_test: 1299 Opts.ProgramAction = frontend::RewriteTest; break; 1300 case OPT_analyze: 1301 Opts.ProgramAction = frontend::RunAnalysis; break; 1302 case OPT_migrate: 1303 Opts.ProgramAction = frontend::MigrateSource; break; 1304 case OPT_Eonly: 1305 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1306 } 1307 } 1308 1309 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1310 Opts.Plugins.emplace_back(A->getValue(0)); 1311 Opts.ProgramAction = frontend::PluginAction; 1312 Opts.ActionName = A->getValue(); 1313 } 1314 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1315 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1316 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1317 1318 for (const std::string &Arg : 1319 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1320 std::string BlockName; 1321 unsigned MajorVersion; 1322 unsigned MinorVersion; 1323 bool Hashed; 1324 std::string UserInfo; 1325 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1326 MinorVersion, Hashed, UserInfo)) { 1327 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1328 1329 continue; 1330 } 1331 1332 // Add the testing module file extension. 1333 Opts.ModuleFileExtensions.push_back( 1334 std::make_shared<TestModuleFileExtension>( 1335 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1336 } 1337 1338 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1339 Opts.CodeCompletionAt = 1340 ParsedSourceLocation::FromString(A->getValue()); 1341 if (Opts.CodeCompletionAt.FileName.empty()) 1342 Diags.Report(diag::err_drv_invalid_value) 1343 << A->getAsString(Args) << A->getValue(); 1344 } 1345 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1346 1347 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1348 Opts.Plugins = Args.getAllArgValues(OPT_load); 1349 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1350 Opts.ShowHelp = Args.hasArg(OPT_help); 1351 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1352 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1353 Opts.ShowVersion = Args.hasArg(OPT_version); 1354 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1355 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1356 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1357 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1358 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1359 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1360 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1361 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1362 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1363 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1364 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1365 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1366 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1367 // Only the -fmodule-file=<file> form. 1368 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1369 StringRef Val = A->getValue(); 1370 if (Val.find('=') == StringRef::npos) 1371 Opts.ModuleFiles.push_back(Val); 1372 } 1373 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1374 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1375 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1376 1377 Opts.CodeCompleteOpts.IncludeMacros 1378 = Args.hasArg(OPT_code_completion_macros); 1379 Opts.CodeCompleteOpts.IncludeCodePatterns 1380 = Args.hasArg(OPT_code_completion_patterns); 1381 Opts.CodeCompleteOpts.IncludeGlobals 1382 = !Args.hasArg(OPT_no_code_completion_globals); 1383 Opts.CodeCompleteOpts.IncludeBriefComments 1384 = Args.hasArg(OPT_code_completion_brief_comments); 1385 1386 Opts.OverrideRecordLayoutsFile 1387 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1388 Opts.AuxTriple = 1389 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1390 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1391 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1392 1393 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1394 OPT_arcmt_modify, 1395 OPT_arcmt_migrate)) { 1396 switch (A->getOption().getID()) { 1397 default: 1398 llvm_unreachable("missed a case"); 1399 case OPT_arcmt_check: 1400 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1401 break; 1402 case OPT_arcmt_modify: 1403 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1404 break; 1405 case OPT_arcmt_migrate: 1406 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1407 break; 1408 } 1409 } 1410 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1411 Opts.ARCMTMigrateReportOut 1412 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1413 Opts.ARCMTMigrateEmitARCErrors 1414 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1415 1416 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1417 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1418 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1419 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1420 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1421 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1422 if (Args.hasArg(OPT_objcmt_migrate_property)) 1423 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1424 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1425 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1426 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1427 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1428 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1429 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1430 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1431 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1432 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1433 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1434 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1435 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1436 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1437 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1438 if (Args.hasArg(OPT_objcmt_atomic_property)) 1439 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1440 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1441 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1442 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1443 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1444 if (Args.hasArg(OPT_objcmt_migrate_all)) 1445 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1446 1447 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1448 1449 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1450 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1451 Diags.Report(diag::err_drv_argument_not_allowed_with) 1452 << "ARC migration" << "ObjC migration"; 1453 } 1454 1455 InputKind DashX(InputKind::Unknown); 1456 if (const Arg *A = Args.getLastArg(OPT_x)) { 1457 StringRef XValue = A->getValue(); 1458 1459 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1460 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1461 bool Preprocessed = XValue.consume_back("-cpp-output"); 1462 bool ModuleMap = XValue.consume_back("-module-map"); 1463 IsHeaderFile = 1464 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1465 1466 // Principal languages. 1467 DashX = llvm::StringSwitch<InputKind>(XValue) 1468 .Case("c", InputKind::C) 1469 .Case("cl", InputKind::OpenCL) 1470 .Case("cuda", InputKind::CUDA) 1471 .Case("c++", InputKind::CXX) 1472 .Case("objective-c", InputKind::ObjC) 1473 .Case("objective-c++", InputKind::ObjCXX) 1474 .Case("renderscript", InputKind::RenderScript) 1475 .Default(InputKind::Unknown); 1476 1477 // "objc[++]-cpp-output" is an acceptable synonym for 1478 // "objective-c[++]-cpp-output". 1479 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1480 DashX = llvm::StringSwitch<InputKind>(XValue) 1481 .Case("objc", InputKind::ObjC) 1482 .Case("objc++", InputKind::ObjCXX) 1483 .Default(InputKind::Unknown); 1484 1485 // Some special cases cannot be combined with suffixes. 1486 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1487 DashX = llvm::StringSwitch<InputKind>(XValue) 1488 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1489 .Case("assembler-with-cpp", InputKind::Asm) 1490 .Cases("ast", "pcm", 1491 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1492 .Case("ir", InputKind::LLVM_IR) 1493 .Default(InputKind::Unknown); 1494 1495 if (DashX.isUnknown()) 1496 Diags.Report(diag::err_drv_invalid_value) 1497 << A->getAsString(Args) << A->getValue(); 1498 1499 if (Preprocessed) 1500 DashX = DashX.getPreprocessed(); 1501 if (ModuleMap) 1502 DashX = DashX.withFormat(InputKind::ModuleMap); 1503 } 1504 1505 // '-' is the default input if none is given. 1506 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1507 Opts.Inputs.clear(); 1508 if (Inputs.empty()) 1509 Inputs.push_back("-"); 1510 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1511 InputKind IK = DashX; 1512 if (IK.isUnknown()) { 1513 IK = FrontendOptions::getInputKindForExtension( 1514 StringRef(Inputs[i]).rsplit('.').second); 1515 // FIXME: Warn on this? 1516 if (IK.isUnknown()) 1517 IK = InputKind::C; 1518 // FIXME: Remove this hack. 1519 if (i == 0) 1520 DashX = IK; 1521 } 1522 1523 // The -emit-module action implicitly takes a module map. 1524 if (Opts.ProgramAction == frontend::GenerateModule && 1525 IK.getFormat() == InputKind::Source) 1526 IK = IK.withFormat(InputKind::ModuleMap); 1527 1528 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1529 } 1530 1531 return DashX; 1532 } 1533 1534 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1535 void *MainAddr) { 1536 std::string ClangExecutable = 1537 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1538 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1539 1540 // Compute the path to the resource directory. 1541 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1542 SmallString<128> P(Dir); 1543 if (ClangResourceDir != "") 1544 llvm::sys::path::append(P, ClangResourceDir); 1545 else 1546 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1547 "clang", CLANG_VERSION_STRING); 1548 1549 return P.str(); 1550 } 1551 1552 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1553 const std::string &WorkingDir) { 1554 using namespace options; 1555 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1556 Opts.Verbose = Args.hasArg(OPT_v); 1557 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1558 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1559 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1560 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1561 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1562 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1563 1564 // Canonicalize -fmodules-cache-path before storing it. 1565 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1566 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1567 if (WorkingDir.empty()) 1568 llvm::sys::fs::make_absolute(P); 1569 else 1570 llvm::sys::fs::make_absolute(WorkingDir, P); 1571 } 1572 llvm::sys::path::remove_dots(P); 1573 Opts.ModuleCachePath = P.str(); 1574 1575 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1576 // Only the -fmodule-file=<name>=<file> form. 1577 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1578 StringRef Val = A->getValue(); 1579 if (Val.find('=') != StringRef::npos) 1580 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1581 } 1582 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1583 Opts.AddPrebuiltModulePath(A->getValue()); 1584 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1585 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1586 Opts.ModulesValidateDiagnosticOptions = 1587 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1588 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1589 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1590 Opts.ModuleCachePruneInterval = 1591 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1592 Opts.ModuleCachePruneAfter = 1593 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1594 Opts.ModulesValidateOncePerBuildSession = 1595 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1596 Opts.BuildSessionTimestamp = 1597 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1598 Opts.ModulesValidateSystemHeaders = 1599 Args.hasArg(OPT_fmodules_validate_system_headers); 1600 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1601 Opts.ModuleFormat = A->getValue(); 1602 1603 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1604 StringRef MacroDef = A->getValue(); 1605 Opts.ModulesIgnoreMacros.insert( 1606 llvm::CachedHashString(MacroDef.split('=').first)); 1607 } 1608 1609 // Add -I..., -F..., and -index-header-map options in order. 1610 bool IsIndexHeaderMap = false; 1611 bool IsSysrootSpecified = 1612 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1613 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1614 if (A->getOption().matches(OPT_index_header_map)) { 1615 // -index-header-map applies to the next -I or -F. 1616 IsIndexHeaderMap = true; 1617 continue; 1618 } 1619 1620 frontend::IncludeDirGroup Group = 1621 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1622 1623 bool IsFramework = A->getOption().matches(OPT_F); 1624 std::string Path = A->getValue(); 1625 1626 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1627 SmallString<32> Buffer; 1628 llvm::sys::path::append(Buffer, Opts.Sysroot, 1629 llvm::StringRef(A->getValue()).substr(1)); 1630 Path = Buffer.str(); 1631 } 1632 1633 Opts.AddPath(Path, Group, IsFramework, 1634 /*IgnoreSysroot*/ true); 1635 IsIndexHeaderMap = false; 1636 } 1637 1638 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1639 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1640 for (const Arg *A : 1641 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1642 if (A->getOption().matches(OPT_iprefix)) 1643 Prefix = A->getValue(); 1644 else if (A->getOption().matches(OPT_iwithprefix)) 1645 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1646 else 1647 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1648 } 1649 1650 for (const Arg *A : Args.filtered(OPT_idirafter)) 1651 Opts.AddPath(A->getValue(), frontend::After, false, true); 1652 for (const Arg *A : Args.filtered(OPT_iquote)) 1653 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1654 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1655 Opts.AddPath(A->getValue(), frontend::System, false, 1656 !A->getOption().matches(OPT_iwithsysroot)); 1657 for (const Arg *A : Args.filtered(OPT_iframework)) 1658 Opts.AddPath(A->getValue(), frontend::System, true, true); 1659 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot)) 1660 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1661 /*IgnoreSysRoot=*/false); 1662 1663 // Add the paths for the various language specific isystem flags. 1664 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1665 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1666 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1667 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1668 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1669 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1670 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1671 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1672 1673 // Add the internal paths from a driver that detects standard include paths. 1674 for (const Arg *A : 1675 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1676 frontend::IncludeDirGroup Group = frontend::System; 1677 if (A->getOption().matches(OPT_internal_externc_isystem)) 1678 Group = frontend::ExternCSystem; 1679 Opts.AddPath(A->getValue(), Group, false, true); 1680 } 1681 1682 // Add the path prefixes which are implicitly treated as being system headers. 1683 for (const Arg *A : 1684 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1685 Opts.AddSystemHeaderPrefix( 1686 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1687 1688 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1689 Opts.AddVFSOverlayFile(A->getValue()); 1690 } 1691 1692 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1693 const llvm::Triple &T, 1694 PreprocessorOptions &PPOpts, 1695 LangStandard::Kind LangStd) { 1696 // Set some properties which depend solely on the input kind; it would be nice 1697 // to move these to the language standard, and have the driver resolve the 1698 // input kind + language standard. 1699 // 1700 // FIXME: Perhaps a better model would be for a single source file to have 1701 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 1702 // simultaneously active? 1703 if (IK.getLanguage() == InputKind::Asm) { 1704 Opts.AsmPreprocessor = 1; 1705 } else if (IK.isObjectiveC()) { 1706 Opts.ObjC1 = Opts.ObjC2 = 1; 1707 } 1708 1709 if (LangStd == LangStandard::lang_unspecified) { 1710 // Based on the base language, pick one. 1711 switch (IK.getLanguage()) { 1712 case InputKind::Unknown: 1713 case InputKind::LLVM_IR: 1714 llvm_unreachable("Invalid input kind!"); 1715 case InputKind::OpenCL: 1716 LangStd = LangStandard::lang_opencl10; 1717 break; 1718 case InputKind::CUDA: 1719 LangStd = LangStandard::lang_cuda; 1720 break; 1721 case InputKind::Asm: 1722 case InputKind::C: 1723 // The PS4 uses C99 as the default C standard. 1724 if (T.isPS4()) 1725 LangStd = LangStandard::lang_gnu99; 1726 else 1727 LangStd = LangStandard::lang_gnu11; 1728 break; 1729 case InputKind::ObjC: 1730 LangStd = LangStandard::lang_gnu11; 1731 break; 1732 case InputKind::CXX: 1733 case InputKind::ObjCXX: 1734 LangStd = LangStandard::lang_gnucxx14; 1735 break; 1736 case InputKind::RenderScript: 1737 LangStd = LangStandard::lang_c99; 1738 break; 1739 } 1740 } 1741 1742 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1743 Opts.LineComment = Std.hasLineComments(); 1744 Opts.C99 = Std.isC99(); 1745 Opts.C11 = Std.isC11(); 1746 Opts.C17 = Std.isC17(); 1747 Opts.CPlusPlus = Std.isCPlusPlus(); 1748 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1749 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1750 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 1751 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 1752 Opts.Digraphs = Std.hasDigraphs(); 1753 Opts.GNUMode = Std.isGNUMode(); 1754 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 1755 Opts.HexFloats = Std.hasHexFloats(); 1756 Opts.ImplicitInt = Std.hasImplicitInt(); 1757 1758 // Set OpenCL Version. 1759 Opts.OpenCL = Std.isOpenCL(); 1760 if (LangStd == LangStandard::lang_opencl10) 1761 Opts.OpenCLVersion = 100; 1762 else if (LangStd == LangStandard::lang_opencl11) 1763 Opts.OpenCLVersion = 110; 1764 else if (LangStd == LangStandard::lang_opencl12) 1765 Opts.OpenCLVersion = 120; 1766 else if (LangStd == LangStandard::lang_opencl20) 1767 Opts.OpenCLVersion = 200; 1768 1769 // OpenCL has some additional defaults. 1770 if (Opts.OpenCL) { 1771 Opts.AltiVec = 0; 1772 Opts.ZVector = 0; 1773 Opts.LaxVectorConversions = 0; 1774 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 1775 Opts.NativeHalfType = 1; 1776 Opts.NativeHalfArgsAndReturns = 1; 1777 // Include default header file for OpenCL. 1778 if (Opts.IncludeDefaultHeader) { 1779 PPOpts.Includes.push_back("opencl-c.h"); 1780 } 1781 } 1782 1783 Opts.CUDA = IK.getLanguage() == InputKind::CUDA; 1784 if (Opts.CUDA) 1785 // Set default FP_CONTRACT to FAST. 1786 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 1787 1788 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 1789 if (Opts.RenderScript) { 1790 Opts.NativeHalfType = 1; 1791 Opts.NativeHalfArgsAndReturns = 1; 1792 } 1793 1794 // OpenCL and C++ both have bool, true, false keywords. 1795 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1796 1797 // OpenCL has half keyword 1798 Opts.Half = Opts.OpenCL; 1799 1800 // C++ has wchar_t keyword. 1801 Opts.WChar = Opts.CPlusPlus; 1802 1803 Opts.GNUKeywords = Opts.GNUMode; 1804 Opts.CXXOperatorNames = Opts.CPlusPlus; 1805 1806 Opts.AlignedAllocation = Opts.CPlusPlus17; 1807 1808 Opts.DollarIdents = !Opts.AsmPreprocessor; 1809 } 1810 1811 /// Attempt to parse a visibility value out of the given argument. 1812 static Visibility parseVisibility(Arg *arg, ArgList &args, 1813 DiagnosticsEngine &diags) { 1814 StringRef value = arg->getValue(); 1815 if (value == "default") { 1816 return DefaultVisibility; 1817 } else if (value == "hidden" || value == "internal") { 1818 return HiddenVisibility; 1819 } else if (value == "protected") { 1820 // FIXME: diagnose if target does not support protected visibility 1821 return ProtectedVisibility; 1822 } 1823 1824 diags.Report(diag::err_drv_invalid_value) 1825 << arg->getAsString(args) << value; 1826 return DefaultVisibility; 1827 } 1828 1829 /// Check if input file kind and language standard are compatible. 1830 static bool IsInputCompatibleWithStandard(InputKind IK, 1831 const LangStandard &S) { 1832 switch (IK.getLanguage()) { 1833 case InputKind::Unknown: 1834 case InputKind::LLVM_IR: 1835 llvm_unreachable("should not parse language flags for this input"); 1836 1837 case InputKind::C: 1838 case InputKind::ObjC: 1839 case InputKind::RenderScript: 1840 return S.getLanguage() == InputKind::C; 1841 1842 case InputKind::OpenCL: 1843 return S.getLanguage() == InputKind::OpenCL; 1844 1845 case InputKind::CXX: 1846 case InputKind::ObjCXX: 1847 return S.getLanguage() == InputKind::CXX; 1848 1849 case InputKind::CUDA: 1850 // FIXME: What -std= values should be permitted for CUDA compilations? 1851 return S.getLanguage() == InputKind::CUDA || 1852 S.getLanguage() == InputKind::CXX; 1853 1854 case InputKind::Asm: 1855 // Accept (and ignore) all -std= values. 1856 // FIXME: The -std= value is not ignored; it affects the tokenization 1857 // and preprocessing rules if we're preprocessing this asm input. 1858 return true; 1859 } 1860 1861 llvm_unreachable("unexpected input language"); 1862 } 1863 1864 /// Get language name for given input kind. 1865 static const StringRef GetInputKindName(InputKind IK) { 1866 switch (IK.getLanguage()) { 1867 case InputKind::C: 1868 return "C"; 1869 case InputKind::ObjC: 1870 return "Objective-C"; 1871 case InputKind::CXX: 1872 return "C++"; 1873 case InputKind::ObjCXX: 1874 return "Objective-C++"; 1875 case InputKind::OpenCL: 1876 return "OpenCL"; 1877 case InputKind::CUDA: 1878 return "CUDA"; 1879 case InputKind::RenderScript: 1880 return "RenderScript"; 1881 1882 case InputKind::Asm: 1883 return "Asm"; 1884 case InputKind::LLVM_IR: 1885 return "LLVM IR"; 1886 1887 case InputKind::Unknown: 1888 break; 1889 } 1890 llvm_unreachable("unknown input language"); 1891 } 1892 1893 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1894 const TargetOptions &TargetOpts, 1895 PreprocessorOptions &PPOpts, 1896 DiagnosticsEngine &Diags) { 1897 // FIXME: Cleanup per-file based stuff. 1898 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1899 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1900 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1901 #define LANGSTANDARD(id, name, lang, desc, features) \ 1902 .Case(name, LangStandard::lang_##id) 1903 #define LANGSTANDARD_ALIAS(id, alias) \ 1904 .Case(alias, LangStandard::lang_##id) 1905 #include "clang/Frontend/LangStandards.def" 1906 .Default(LangStandard::lang_unspecified); 1907 if (LangStd == LangStandard::lang_unspecified) { 1908 Diags.Report(diag::err_drv_invalid_value) 1909 << A->getAsString(Args) << A->getValue(); 1910 // Report supported standards with short description. 1911 for (unsigned KindValue = 0; 1912 KindValue != LangStandard::lang_unspecified; 1913 ++KindValue) { 1914 const LangStandard &Std = LangStandard::getLangStandardForKind( 1915 static_cast<LangStandard::Kind>(KindValue)); 1916 if (IsInputCompatibleWithStandard(IK, Std)) { 1917 auto Diag = Diags.Report(diag::note_drv_use_standard); 1918 Diag << Std.getName() << Std.getDescription(); 1919 unsigned NumAliases = 0; 1920 #define LANGSTANDARD(id, name, lang, desc, features) 1921 #define LANGSTANDARD_ALIAS(id, alias) \ 1922 if (KindValue == LangStandard::lang_##id) ++NumAliases; 1923 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1924 #include "clang/Frontend/LangStandards.def" 1925 Diag << NumAliases; 1926 #define LANGSTANDARD(id, name, lang, desc, features) 1927 #define LANGSTANDARD_ALIAS(id, alias) \ 1928 if (KindValue == LangStandard::lang_##id) Diag << alias; 1929 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1930 #include "clang/Frontend/LangStandards.def" 1931 } 1932 } 1933 } else { 1934 // Valid standard, check to make sure language and standard are 1935 // compatible. 1936 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1937 if (!IsInputCompatibleWithStandard(IK, Std)) { 1938 Diags.Report(diag::err_drv_argument_not_allowed_with) 1939 << A->getAsString(Args) << GetInputKindName(IK); 1940 } 1941 } 1942 } 1943 1944 // -cl-std only applies for OpenCL language standards. 1945 // Override the -std option in this case. 1946 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1947 LangStandard::Kind OpenCLLangStd 1948 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1949 .Cases("cl", "CL", LangStandard::lang_opencl10) 1950 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1951 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1952 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1953 .Default(LangStandard::lang_unspecified); 1954 1955 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1956 Diags.Report(diag::err_drv_invalid_value) 1957 << A->getAsString(Args) << A->getValue(); 1958 } 1959 else 1960 LangStd = OpenCLLangStd; 1961 } 1962 1963 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1964 1965 llvm::Triple T(TargetOpts.Triple); 1966 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1967 1968 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1969 // This option should be deprecated for CL > 1.0 because 1970 // this option was added for compatibility with OpenCL 1.0. 1971 if (Args.getLastArg(OPT_cl_strict_aliasing) 1972 && Opts.OpenCLVersion > 100) { 1973 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1974 std::string(".") + 1975 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1976 Diags.Report(diag::warn_option_invalid_ocl_version) 1977 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1978 } 1979 1980 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1981 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1982 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1983 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1984 // name, as it doesn't seem a useful distinction. 1985 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1986 Opts.GNUKeywords); 1987 1988 if (Args.hasArg(OPT_fno_operator_names)) 1989 Opts.CXXOperatorNames = 0; 1990 1991 if (Args.hasArg(OPT_fcuda_is_device)) 1992 Opts.CUDAIsDevice = 1; 1993 1994 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1995 Opts.CUDAAllowVariadicFunctions = 1; 1996 1997 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1998 Opts.CUDAHostDeviceConstexpr = 0; 1999 2000 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 2001 Opts.CUDADeviceFlushDenormalsToZero = 1; 2002 2003 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2004 Opts.CUDADeviceApproxTranscendentals = 1; 2005 2006 if (Opts.ObjC1) { 2007 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2008 StringRef value = arg->getValue(); 2009 if (Opts.ObjCRuntime.tryParse(value)) 2010 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2011 } 2012 2013 if (Args.hasArg(OPT_fobjc_gc_only)) 2014 Opts.setGC(LangOptions::GCOnly); 2015 else if (Args.hasArg(OPT_fobjc_gc)) 2016 Opts.setGC(LangOptions::HybridGC); 2017 else if (Args.hasArg(OPT_fobjc_arc)) { 2018 Opts.ObjCAutoRefCount = 1; 2019 if (!Opts.ObjCRuntime.allowsARC()) 2020 Diags.Report(diag::err_arc_unsupported_on_runtime); 2021 } 2022 2023 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2024 // whether the feature is actually enabled. This is predominantly 2025 // determined by -fobjc-runtime, but we allow it to be overridden 2026 // from the command line for testing purposes. 2027 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2028 Opts.ObjCWeakRuntime = 1; 2029 else 2030 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2031 2032 // ObjCWeak determines whether __weak is actually enabled. 2033 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2034 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2035 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2036 assert(!Opts.ObjCWeak); 2037 } else if (Opts.getGC() != LangOptions::NonGC) { 2038 Diags.Report(diag::err_objc_weak_with_gc); 2039 } else if (!Opts.ObjCWeakRuntime) { 2040 Diags.Report(diag::err_objc_weak_unsupported); 2041 } else { 2042 Opts.ObjCWeak = 1; 2043 } 2044 } else if (Opts.ObjCAutoRefCount) { 2045 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2046 } 2047 2048 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2049 Opts.ObjCInferRelatedResultType = 0; 2050 2051 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2052 Opts.ObjCSubscriptingLegacyRuntime = 2053 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2054 } 2055 2056 if (Args.hasArg(OPT_fgnu89_inline)) { 2057 if (Opts.CPlusPlus) 2058 Diags.Report(diag::err_drv_argument_not_allowed_with) 2059 << "-fgnu89-inline" << GetInputKindName(IK); 2060 else 2061 Opts.GNUInline = 1; 2062 } 2063 2064 if (Args.hasArg(OPT_fapple_kext)) { 2065 if (!Opts.CPlusPlus) 2066 Diags.Report(diag::warn_c_kext); 2067 else 2068 Opts.AppleKext = 1; 2069 } 2070 2071 if (Args.hasArg(OPT_print_ivar_layout)) 2072 Opts.ObjCGCBitmapPrint = 1; 2073 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2074 Opts.NoConstantCFStrings = 1; 2075 2076 if (Args.hasArg(OPT_fzvector)) 2077 Opts.ZVector = 1; 2078 2079 if (Args.hasArg(OPT_pthread)) 2080 Opts.POSIXThreads = 1; 2081 2082 // The value-visibility mode defaults to "default". 2083 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2084 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2085 } else { 2086 Opts.setValueVisibilityMode(DefaultVisibility); 2087 } 2088 2089 // The type-visibility mode defaults to the value-visibility mode. 2090 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2091 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2092 } else { 2093 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2094 } 2095 2096 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2097 Opts.InlineVisibilityHidden = 1; 2098 2099 if (Args.hasArg(OPT_ftrapv)) { 2100 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2101 // Set the handler, if one is specified. 2102 Opts.OverflowHandler = 2103 Args.getLastArgValue(OPT_ftrapv_handler); 2104 } 2105 else if (Args.hasArg(OPT_fwrapv)) 2106 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2107 2108 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2109 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2110 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2111 Opts.MSCompatibilityVersion = 0; 2112 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2113 VersionTuple VT; 2114 if (VT.tryParse(A->getValue())) 2115 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2116 << A->getValue(); 2117 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2118 VT.getMinor().getValueOr(0) * 100000 + 2119 VT.getSubminor().getValueOr(0); 2120 } 2121 2122 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 2123 // is specified, or -std is set to a conforming mode. 2124 // Trigraphs are disabled by default in c++1z onwards. 2125 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2126 Opts.Trigraphs = 2127 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2128 2129 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2130 OPT_fno_dollars_in_identifiers, 2131 Opts.DollarIdents); 2132 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2133 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2134 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2135 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2136 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2137 Opts.ConstStrings); 2138 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2139 Opts.LaxVectorConversions = 0; 2140 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2141 Opts.ThreadsafeStatics = 0; 2142 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2143 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2144 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2145 2146 // Handle exception personalities 2147 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2148 options::OPT_fseh_exceptions, 2149 options::OPT_fdwarf_exceptions); 2150 if (A) { 2151 const Option &Opt = A->getOption(); 2152 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2153 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2154 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2155 } 2156 2157 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2158 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2159 2160 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2161 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2162 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2163 && Opts.OpenCLVersion >= 200); 2164 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2165 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2166 2167 // Enable [[]] attributes in C++11 by default. 2168 Opts.DoubleSquareBracketAttributes = 2169 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2170 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11); 2171 2172 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2173 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2174 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2175 Opts.ModulesDeclUse = 2176 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2177 Opts.ModulesLocalVisibility = 2178 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2179 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2180 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2181 Opts.ModulesSearchAll = Opts.Modules && 2182 !Args.hasArg(OPT_fno_modules_search_all) && 2183 Args.hasArg(OPT_fmodules_search_all); 2184 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2185 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2186 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2187 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2188 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2189 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2190 .Case("char", 1) 2191 .Case("short", 2) 2192 .Case("int", 4) 2193 .Default(0); 2194 if (Opts.WCharSize == 0) 2195 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2196 } 2197 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2198 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2199 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2200 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2201 if (!Opts.NoBuiltin) 2202 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2203 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2204 Opts.RelaxedTemplateTemplateArgs = 2205 Args.hasArg(OPT_frelaxed_template_template_args); 2206 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2207 Opts.AlignedAllocation = 2208 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2209 Opts.AlignedAllocation); 2210 Opts.AlignedAllocationUnavailable = 2211 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2212 Opts.NewAlignOverride = 2213 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2214 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2215 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2216 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2217 << A->getValue(); 2218 Opts.NewAlignOverride = 0; 2219 } 2220 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2221 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2222 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2223 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2224 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2225 Opts.InstantiationDepth = 2226 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2227 Opts.ArrowDepth = 2228 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2229 Opts.ConstexprCallDepth = 2230 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2231 Opts.ConstexprStepLimit = 2232 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2233 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2234 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2235 Opts.NumLargeByValueCopy = 2236 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2237 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2238 Opts.ObjCConstantStringClass = 2239 Args.getLastArgValue(OPT_fconstant_string_class); 2240 Opts.ObjCDefaultSynthProperties = 2241 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2242 Opts.EncodeExtendedBlockSig = 2243 Args.hasArg(OPT_fencode_extended_block_signature); 2244 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2245 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2246 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2247 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2248 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2249 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2250 Opts.Static = Args.hasArg(OPT_static_define); 2251 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2252 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2253 || Args.hasArg(OPT_fdump_record_layouts); 2254 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2255 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2256 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2257 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2258 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2259 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2260 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2261 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2262 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2263 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2264 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2265 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2266 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2267 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2268 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2269 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2270 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2271 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2272 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2273 // is enabled. 2274 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2275 | Opts.NativeHalfArgsAndReturns; 2276 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2277 2278 // __declspec is enabled by default for the PS4 by the driver, and also 2279 // enabled for Microsoft Extensions or Borland Extensions, here. 2280 // 2281 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2282 // CUDA extension. However, it is required for supporting 2283 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2284 // been rewritten in terms of something more generic, remove the Opts.CUDA 2285 // term here. 2286 Opts.DeclSpecKeyword = 2287 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2288 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2289 2290 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2291 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2292 .Case("target", LangOptions::ASMM_Target) 2293 .Case("no", LangOptions::ASMM_Off) 2294 .Case("yes", LangOptions::ASMM_On) 2295 .Default(255)) { 2296 default: 2297 Diags.Report(diag::err_drv_invalid_value) 2298 << "-faddress-space-map-mangling=" << A->getValue(); 2299 break; 2300 case LangOptions::ASMM_Target: 2301 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2302 break; 2303 case LangOptions::ASMM_On: 2304 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2305 break; 2306 case LangOptions::ASMM_Off: 2307 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2308 break; 2309 } 2310 } 2311 2312 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2313 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2314 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2315 A->getValue()) 2316 .Case("single", 2317 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2318 .Case("multiple", 2319 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2320 .Case("virtual", 2321 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2322 .Default(LangOptions::PPTMK_BestCase); 2323 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2324 Diags.Report(diag::err_drv_invalid_value) 2325 << "-fms-memptr-rep=" << A->getValue(); 2326 2327 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2328 } 2329 2330 // Check for MS default calling conventions being specified. 2331 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2332 LangOptions::DefaultCallingConvention DefaultCC = 2333 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2334 .Case("cdecl", LangOptions::DCC_CDecl) 2335 .Case("fastcall", LangOptions::DCC_FastCall) 2336 .Case("stdcall", LangOptions::DCC_StdCall) 2337 .Case("vectorcall", LangOptions::DCC_VectorCall) 2338 .Case("regcall", LangOptions::DCC_RegCall) 2339 .Default(LangOptions::DCC_None); 2340 if (DefaultCC == LangOptions::DCC_None) 2341 Diags.Report(diag::err_drv_invalid_value) 2342 << "-fdefault-calling-conv=" << A->getValue(); 2343 2344 llvm::Triple T(TargetOpts.Triple); 2345 llvm::Triple::ArchType Arch = T.getArch(); 2346 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2347 DefaultCC == LangOptions::DCC_StdCall) && 2348 Arch != llvm::Triple::x86; 2349 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2350 DefaultCC == LangOptions::DCC_RegCall) && 2351 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2352 if (emitError) 2353 Diags.Report(diag::err_drv_argument_not_allowed_with) 2354 << A->getSpelling() << T.getTriple(); 2355 else 2356 Opts.setDefaultCallingConv(DefaultCC); 2357 } 2358 2359 // -mrtd option 2360 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2361 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2362 Diags.Report(diag::err_drv_argument_not_allowed_with) 2363 << A->getSpelling() << "-fdefault-calling-conv"; 2364 else { 2365 llvm::Triple T(TargetOpts.Triple); 2366 if (T.getArch() != llvm::Triple::x86) 2367 Diags.Report(diag::err_drv_argument_not_allowed_with) 2368 << A->getSpelling() << T.getTriple(); 2369 else 2370 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2371 } 2372 } 2373 2374 // Check if -fopenmp is specified. 2375 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2376 Opts.OpenMPUseTLS = 2377 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2378 Opts.OpenMPIsDevice = 2379 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2380 2381 if (Opts.OpenMP) { 2382 int Version = 2383 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2384 if (Version != 0) 2385 Opts.OpenMP = Version; 2386 // Provide diagnostic when a given target is not expected to be an OpenMP 2387 // device or host. 2388 if (!Opts.OpenMPIsDevice) { 2389 switch (T.getArch()) { 2390 default: 2391 break; 2392 // Add unsupported host targets here: 2393 case llvm::Triple::nvptx: 2394 case llvm::Triple::nvptx64: 2395 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2396 << TargetOpts.Triple; 2397 break; 2398 } 2399 } 2400 } 2401 2402 // Set the flag to prevent the implementation from emitting device exception 2403 // handling code for those requiring so. 2404 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2405 Opts.Exceptions = 0; 2406 Opts.CXXExceptions = 0; 2407 } 2408 2409 // Get the OpenMP target triples if any. 2410 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2411 2412 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2413 llvm::Triple TT(A->getValue(i)); 2414 2415 if (TT.getArch() == llvm::Triple::UnknownArch || 2416 !(TT.getArch() == llvm::Triple::ppc || 2417 TT.getArch() == llvm::Triple::ppc64 || 2418 TT.getArch() == llvm::Triple::ppc64le || 2419 TT.getArch() == llvm::Triple::nvptx || 2420 TT.getArch() == llvm::Triple::nvptx64 || 2421 TT.getArch() == llvm::Triple::x86 || 2422 TT.getArch() == llvm::Triple::x86_64)) 2423 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2424 else 2425 Opts.OMPTargetTriples.push_back(TT); 2426 } 2427 } 2428 2429 // Get OpenMP host file path if any and report if a non existent file is 2430 // found 2431 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2432 Opts.OMPHostIRFile = A->getValue(); 2433 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2434 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2435 << Opts.OMPHostIRFile; 2436 } 2437 2438 // Record whether the __DEPRECATED define was requested. 2439 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2440 OPT_fno_deprecated_macro, 2441 Opts.Deprecated); 2442 2443 // FIXME: Eliminate this dependency. 2444 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2445 OptSize = getOptimizationLevelSize(Args); 2446 Opts.Optimize = Opt != 0; 2447 Opts.OptimizeSize = OptSize != 0; 2448 2449 // This is the __NO_INLINE__ define, which just depends on things like the 2450 // optimization level and -fno-inline, not actually whether the backend has 2451 // inlining enabled. 2452 Opts.NoInlineDefine = !Opts.Optimize; 2453 if (Arg *InlineArg = Args.getLastArg( 2454 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2455 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2456 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2457 Opts.NoInlineDefine = true; 2458 2459 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2460 Args.hasArg(OPT_cl_fast_relaxed_math); 2461 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2462 Args.hasArg(OPT_cl_finite_math_only) || 2463 Args.hasArg(OPT_cl_fast_relaxed_math); 2464 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2465 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2466 Args.hasArg(OPT_cl_fast_relaxed_math); 2467 2468 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2469 StringRef Val = A->getValue(); 2470 if (Val == "fast") 2471 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2472 else if (Val == "on") 2473 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2474 else if (Val == "off") 2475 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2476 else 2477 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2478 } 2479 2480 Opts.RetainCommentsFromSystemHeaders = 2481 Args.hasArg(OPT_fretain_comments_from_system_headers); 2482 2483 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2484 switch (SSP) { 2485 default: 2486 Diags.Report(diag::err_drv_invalid_value) 2487 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2488 break; 2489 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2490 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2491 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2492 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2493 } 2494 2495 // Parse -fsanitize= arguments. 2496 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2497 Diags, Opts.Sanitize); 2498 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2499 Opts.SanitizeAddressFieldPadding = 2500 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2501 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2502 2503 // -fxray-instrument 2504 Opts.XRayInstrument = 2505 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2506 2507 // -fxray-always-emit-customevents 2508 Opts.XRayAlwaysEmitCustomEvents = 2509 Args.hasFlag(OPT_fxray_always_emit_customevents, 2510 OPT_fnoxray_always_emit_customevents, false); 2511 2512 // -fxray-{always,never}-instrument= filenames. 2513 Opts.XRayAlwaysInstrumentFiles = 2514 Args.getAllArgValues(OPT_fxray_always_instrument); 2515 Opts.XRayNeverInstrumentFiles = 2516 Args.getAllArgValues(OPT_fxray_never_instrument); 2517 2518 // -fallow-editor-placeholders 2519 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2520 } 2521 2522 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 2523 switch (Action) { 2524 case frontend::ASTDeclList: 2525 case frontend::ASTDump: 2526 case frontend::ASTPrint: 2527 case frontend::ASTView: 2528 case frontend::EmitAssembly: 2529 case frontend::EmitBC: 2530 case frontend::EmitHTML: 2531 case frontend::EmitLLVM: 2532 case frontend::EmitLLVMOnly: 2533 case frontend::EmitCodeGenOnly: 2534 case frontend::EmitObj: 2535 case frontend::FixIt: 2536 case frontend::GenerateModule: 2537 case frontend::GenerateModuleInterface: 2538 case frontend::GeneratePCH: 2539 case frontend::GeneratePTH: 2540 case frontend::ParseSyntaxOnly: 2541 case frontend::ModuleFileInfo: 2542 case frontend::VerifyPCH: 2543 case frontend::PluginAction: 2544 case frontend::PrintDeclContext: 2545 case frontend::RewriteObjC: 2546 case frontend::RewriteTest: 2547 case frontend::RunAnalysis: 2548 case frontend::MigrateSource: 2549 return false; 2550 2551 case frontend::DumpRawTokens: 2552 case frontend::DumpTokens: 2553 case frontend::InitOnly: 2554 case frontend::PrintPreamble: 2555 case frontend::PrintPreprocessedInput: 2556 case frontend::RewriteMacros: 2557 case frontend::RunPreprocessorOnly: 2558 return true; 2559 } 2560 llvm_unreachable("invalid frontend action"); 2561 } 2562 2563 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2564 FileManager &FileMgr, 2565 DiagnosticsEngine &Diags, 2566 frontend::ActionKind Action) { 2567 using namespace options; 2568 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2569 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2570 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2571 Opts.TokenCache = A->getValue(); 2572 else 2573 Opts.TokenCache = Opts.ImplicitPTHInclude; 2574 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2575 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2576 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2577 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 2578 2579 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2580 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2581 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2582 2583 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2584 StringRef Value(A->getValue()); 2585 size_t Comma = Value.find(','); 2586 unsigned Bytes = 0; 2587 unsigned EndOfLine = 0; 2588 2589 if (Comma == StringRef::npos || 2590 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2591 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2592 Diags.Report(diag::err_drv_preamble_format); 2593 else { 2594 Opts.PrecompiledPreambleBytes.first = Bytes; 2595 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2596 } 2597 } 2598 2599 // Add macros from the command line. 2600 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2601 if (A->getOption().matches(OPT_D)) 2602 Opts.addMacroDef(A->getValue()); 2603 else 2604 Opts.addMacroUndef(A->getValue()); 2605 } 2606 2607 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2608 2609 // Add the ordered list of -includes. 2610 for (const Arg *A : Args.filtered(OPT_include)) 2611 Opts.Includes.emplace_back(A->getValue()); 2612 2613 for (const Arg *A : Args.filtered(OPT_chain_include)) 2614 Opts.ChainedIncludes.emplace_back(A->getValue()); 2615 2616 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2617 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2618 2619 if (Split.second.empty()) { 2620 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2621 continue; 2622 } 2623 2624 Opts.addRemappedFile(Split.first, Split.second); 2625 } 2626 2627 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2628 StringRef Name = A->getValue(); 2629 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2630 .Case("libc++", ARCXX_libcxx) 2631 .Case("libstdc++", ARCXX_libstdcxx) 2632 .Case("none", ARCXX_nolib) 2633 .Default(~0U); 2634 if (Library == ~0U) 2635 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2636 else 2637 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2638 } 2639 2640 // Always avoid lexing editor placeholders when we're just running the 2641 // preprocessor as we never want to emit the 2642 // "editor placeholder in source file" error in PP only mode. 2643 if (isStrictlyPreprocessorAction(Action)) 2644 Opts.LexEditorPlaceholders = false; 2645 } 2646 2647 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2648 ArgList &Args, 2649 frontend::ActionKind Action) { 2650 using namespace options; 2651 2652 if (isStrictlyPreprocessorAction(Action)) 2653 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2654 else 2655 Opts.ShowCPP = 0; 2656 2657 Opts.ShowComments = Args.hasArg(OPT_C); 2658 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2659 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2660 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2661 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2662 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2663 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 2664 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2665 } 2666 2667 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2668 DiagnosticsEngine &Diags) { 2669 using namespace options; 2670 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2671 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2672 StringRef Value = A->getValue(); 2673 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2674 .Case("default", llvm::EABI::Default) 2675 .Case("4", llvm::EABI::EABI4) 2676 .Case("5", llvm::EABI::EABI5) 2677 .Case("gnu", llvm::EABI::GNU) 2678 .Default(llvm::EABI::Unknown); 2679 if (EABIVersion == llvm::EABI::Unknown) 2680 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2681 << Value; 2682 else 2683 Opts.EABIVersion = EABIVersion; 2684 } 2685 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2686 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2687 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2688 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2689 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2690 // Use the default target triple if unspecified. 2691 if (Opts.Triple.empty()) 2692 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2693 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2694 } 2695 2696 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2697 const char *const *ArgBegin, 2698 const char *const *ArgEnd, 2699 DiagnosticsEngine &Diags) { 2700 bool Success = true; 2701 2702 // Parse the arguments. 2703 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2704 const unsigned IncludedFlagsBitmask = options::CC1Option; 2705 unsigned MissingArgIndex, MissingArgCount; 2706 InputArgList Args = 2707 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2708 MissingArgCount, IncludedFlagsBitmask); 2709 LangOptions &LangOpts = *Res.getLangOpts(); 2710 2711 // Check for missing argument error. 2712 if (MissingArgCount) { 2713 Diags.Report(diag::err_drv_missing_argument) 2714 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2715 Success = false; 2716 } 2717 2718 // Issue errors on unknown arguments. 2719 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2720 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2721 Success = false; 2722 } 2723 2724 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2725 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2726 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2727 Success &= 2728 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2729 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2730 ParseCommentArgs(LangOpts.CommentOpts, Args); 2731 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2732 // FIXME: We shouldn't have to pass the DashX option around here 2733 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2734 LangOpts.IsHeaderFile); 2735 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2736 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2737 Res.getTargetOpts()); 2738 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2739 Res.getFileSystemOpts().WorkingDir); 2740 if (DashX.getFormat() == InputKind::Precompiled || 2741 DashX.getLanguage() == InputKind::LLVM_IR) { 2742 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2743 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2744 // what the input type is. 2745 if (Args.hasArg(OPT_fobjc_arc)) 2746 LangOpts.ObjCAutoRefCount = 1; 2747 // PIClevel and PIELevel are needed during code generation and this should be 2748 // set regardless of the input type. 2749 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2750 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2751 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2752 Diags, LangOpts.Sanitize); 2753 } else { 2754 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2755 // FIXME: Should we really be calling this for an InputKind::Asm input? 2756 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2757 Res.getPreprocessorOpts(), Diags); 2758 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2759 LangOpts.ObjCExceptions = 1; 2760 } 2761 2762 if (LangOpts.CUDA) { 2763 // During CUDA device-side compilation, the aux triple is the 2764 // triple used for host compilation. 2765 if (LangOpts.CUDAIsDevice) 2766 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2767 } 2768 2769 // Set the triple of the host for OpenMP device compile. 2770 if (LangOpts.OpenMPIsDevice) 2771 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2772 2773 // FIXME: Override value name discarding when asan or msan is used because the 2774 // backend passes depend on the name of the alloca in order to print out 2775 // names. 2776 Res.getCodeGenOpts().DiscardValueNames &= 2777 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2778 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2779 2780 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2781 // PCH file and find the original header name. Remove the need to do that in 2782 // ParsePreprocessorArgs and remove the FileManager 2783 // parameters from the function and the "FileManager.h" #include. 2784 FileManager FileMgr(Res.getFileSystemOpts()); 2785 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags, 2786 Res.getFrontendOpts().ProgramAction); 2787 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2788 Res.getFrontendOpts().ProgramAction); 2789 2790 // Turn on -Wspir-compat for SPIR target. 2791 llvm::Triple T(Res.getTargetOpts().Triple); 2792 auto Arch = T.getArch(); 2793 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2794 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2795 } 2796 2797 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 2798 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 2799 !Res.getLangOpts()->Sanitize.empty()) { 2800 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 2801 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 2802 } 2803 return Success; 2804 } 2805 2806 std::string CompilerInvocation::getModuleHash() const { 2807 // Note: For QoI reasons, the things we use as a hash here should all be 2808 // dumped via the -module-info flag. 2809 using llvm::hash_code; 2810 using llvm::hash_value; 2811 using llvm::hash_combine; 2812 2813 // Start the signature with the compiler version. 2814 // FIXME: We'd rather use something more cryptographically sound than 2815 // CityHash, but this will do for now. 2816 hash_code code = hash_value(getClangFullRepositoryVersion()); 2817 2818 // Extend the signature with the language options 2819 #define LANGOPT(Name, Bits, Default, Description) \ 2820 code = hash_combine(code, LangOpts->Name); 2821 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2822 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2823 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2824 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2825 #include "clang/Basic/LangOptions.def" 2826 2827 for (StringRef Feature : LangOpts->ModuleFeatures) 2828 code = hash_combine(code, Feature); 2829 2830 // Extend the signature with the target options. 2831 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2832 TargetOpts->ABI); 2833 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2834 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2835 2836 // Extend the signature with preprocessor options. 2837 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2838 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2839 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2840 2841 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2842 I = getPreprocessorOpts().Macros.begin(), 2843 IEnd = getPreprocessorOpts().Macros.end(); 2844 I != IEnd; ++I) { 2845 // If we're supposed to ignore this macro for the purposes of modules, 2846 // don't put it into the hash. 2847 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2848 // Check whether we're ignoring this macro. 2849 StringRef MacroDef = I->first; 2850 if (hsOpts.ModulesIgnoreMacros.count( 2851 llvm::CachedHashString(MacroDef.split('=').first))) 2852 continue; 2853 } 2854 2855 code = hash_combine(code, I->first, I->second); 2856 } 2857 2858 // Extend the signature with the sysroot and other header search options. 2859 code = hash_combine(code, hsOpts.Sysroot, 2860 hsOpts.ModuleFormat, 2861 hsOpts.UseDebugInfo, 2862 hsOpts.UseBuiltinIncludes, 2863 hsOpts.UseStandardSystemIncludes, 2864 hsOpts.UseStandardCXXIncludes, 2865 hsOpts.UseLibcxx, 2866 hsOpts.ModulesValidateDiagnosticOptions); 2867 code = hash_combine(code, hsOpts.ResourceDir); 2868 2869 // Extend the signature with the user build path. 2870 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2871 2872 // Extend the signature with the module file extensions. 2873 const FrontendOptions &frontendOpts = getFrontendOpts(); 2874 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2875 code = ext->hashExtension(code); 2876 } 2877 2878 // Extend the signature with the enabled sanitizers, if at least one is 2879 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 2880 SanitizerSet SanHash = LangOpts->Sanitize; 2881 SanHash.clear(getPPTransparentSanitizers()); 2882 if (!SanHash.empty()) 2883 code = hash_combine(code, SanHash.Mask); 2884 2885 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2886 } 2887 2888 namespace clang { 2889 2890 template<typename IntTy> 2891 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2892 IntTy Default, 2893 DiagnosticsEngine *Diags) { 2894 IntTy Res = Default; 2895 if (Arg *A = Args.getLastArg(Id)) { 2896 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2897 if (Diags) 2898 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2899 << A->getValue(); 2900 } 2901 } 2902 return Res; 2903 } 2904 2905 2906 // Declared in clang/Frontend/Utils.h. 2907 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2908 DiagnosticsEngine *Diags) { 2909 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2910 } 2911 2912 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2913 uint64_t Default, 2914 DiagnosticsEngine *Diags) { 2915 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2916 } 2917 2918 void BuryPointer(const void *Ptr) { 2919 // This function may be called only a small fixed amount of times per each 2920 // invocation, otherwise we do actually have a leak which we want to report. 2921 // If this function is called more than kGraveYardMaxSize times, the pointers 2922 // will not be properly buried and a leak detector will report a leak, which 2923 // is what we want in such case. 2924 static const size_t kGraveYardMaxSize = 16; 2925 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2926 static std::atomic<unsigned> GraveYardSize; 2927 unsigned Idx = GraveYardSize++; 2928 if (Idx >= kGraveYardMaxSize) 2929 return; 2930 GraveYard[Idx] = Ptr; 2931 } 2932 2933 IntrusiveRefCntPtr<vfs::FileSystem> 2934 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2935 DiagnosticsEngine &Diags) { 2936 return createVFSFromCompilerInvocation(CI, Diags, vfs::getRealFileSystem()); 2937 } 2938 2939 IntrusiveRefCntPtr<vfs::FileSystem> 2940 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2941 DiagnosticsEngine &Diags, 2942 IntrusiveRefCntPtr<vfs::FileSystem> BaseFS) { 2943 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2944 return BaseFS; 2945 2946 IntrusiveRefCntPtr<vfs::OverlayFileSystem> Overlay( 2947 new vfs::OverlayFileSystem(BaseFS)); 2948 // earlier vfs files are on the bottom 2949 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2950 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2951 BaseFS->getBufferForFile(File); 2952 if (!Buffer) { 2953 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2954 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2955 } 2956 2957 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2958 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2959 if (!FS.get()) { 2960 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2961 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2962 } 2963 Overlay->pushOverlay(FS); 2964 } 2965 return Overlay; 2966 } 2967 } // end namespace clang 2968