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 llvm::Reloc::Model getRelocModel(ArgList &Args, 334 DiagnosticsEngine &Diags) { 335 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 336 StringRef Value = A->getValue(); 337 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 338 .Case("static", llvm::Reloc::Static) 339 .Case("pic", llvm::Reloc::PIC_) 340 .Case("ropi", llvm::Reloc::ROPI) 341 .Case("rwpi", llvm::Reloc::RWPI) 342 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 343 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 344 .Default(None); 345 if (RM.hasValue()) 346 return *RM; 347 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 348 } 349 return llvm::Reloc::PIC_; 350 } 351 352 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 353 /// It returns a pointer to the newly generated Regex instance. 354 static std::shared_ptr<llvm::Regex> 355 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 356 Arg *RpassArg) { 357 StringRef Val = RpassArg->getValue(); 358 std::string RegexError; 359 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 360 if (!Pattern->isValid(RegexError)) { 361 Diags.Report(diag::err_drv_optimization_remark_pattern) 362 << RegexError << RpassArg->getAsString(Args); 363 Pattern.reset(); 364 } 365 return Pattern; 366 } 367 368 static bool parseDiagnosticLevelMask(StringRef FlagName, 369 const std::vector<std::string> &Levels, 370 DiagnosticsEngine *Diags, 371 DiagnosticLevelMask &M) { 372 bool Success = true; 373 for (const auto &Level : Levels) { 374 DiagnosticLevelMask const PM = 375 llvm::StringSwitch<DiagnosticLevelMask>(Level) 376 .Case("note", DiagnosticLevelMask::Note) 377 .Case("remark", DiagnosticLevelMask::Remark) 378 .Case("warning", DiagnosticLevelMask::Warning) 379 .Case("error", DiagnosticLevelMask::Error) 380 .Default(DiagnosticLevelMask::None); 381 if (PM == DiagnosticLevelMask::None) { 382 Success = false; 383 if (Diags) 384 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 385 } 386 M = M | PM; 387 } 388 return Success; 389 } 390 391 static void parseSanitizerKinds(StringRef FlagName, 392 const std::vector<std::string> &Sanitizers, 393 DiagnosticsEngine &Diags, SanitizerSet &S) { 394 for (const auto &Sanitizer : Sanitizers) { 395 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 396 if (K == 0) 397 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 398 else 399 S.set(K, true); 400 } 401 } 402 403 // Set the profile kind for fprofile-instrument. 404 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 405 DiagnosticsEngine &Diags) { 406 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 407 if (A == nullptr) 408 return; 409 StringRef S = A->getValue(); 410 unsigned I = llvm::StringSwitch<unsigned>(S) 411 .Case("none", CodeGenOptions::ProfileNone) 412 .Case("clang", CodeGenOptions::ProfileClangInstr) 413 .Case("llvm", CodeGenOptions::ProfileIRInstr) 414 .Default(~0U); 415 if (I == ~0U) { 416 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 417 << S; 418 return; 419 } 420 CodeGenOptions::ProfileInstrKind Instrumentor = 421 static_cast<CodeGenOptions::ProfileInstrKind>(I); 422 Opts.setProfileInstr(Instrumentor); 423 } 424 425 // Set the profile kind using fprofile-instrument-use-path. 426 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 427 const Twine &ProfileName) { 428 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 429 // In error, return silently and let Clang PGOUse report the error message. 430 if (auto E = ReaderOrErr.takeError()) { 431 llvm::consumeError(std::move(E)); 432 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 433 return; 434 } 435 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 436 std::move(ReaderOrErr.get()); 437 if (PGOReader->isIRLevelProfile()) 438 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 439 else 440 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 441 } 442 443 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 444 DiagnosticsEngine &Diags, 445 const TargetOptions &TargetOpts) { 446 using namespace options; 447 bool Success = true; 448 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 449 450 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 451 // TODO: This could be done in Driver 452 unsigned MaxOptLevel = 3; 453 if (OptimizationLevel > MaxOptLevel) { 454 // If the optimization level is not supported, fall back on the default 455 // optimization 456 Diags.Report(diag::warn_drv_optimization_value) 457 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 458 OptimizationLevel = MaxOptLevel; 459 } 460 Opts.OptimizationLevel = OptimizationLevel; 461 462 // At O0 we want to fully disable inlining outside of cases marked with 463 // 'alwaysinline' that are required for correctness. 464 Opts.setInlining((Opts.OptimizationLevel == 0) 465 ? CodeGenOptions::OnlyAlwaysInlining 466 : CodeGenOptions::NormalInlining); 467 // Explicit inlining flags can disable some or all inlining even at 468 // optimization levels above zero. 469 if (Arg *InlineArg = Args.getLastArg( 470 options::OPT_finline_functions, options::OPT_finline_hint_functions, 471 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 472 if (Opts.OptimizationLevel > 0) { 473 const Option &InlineOpt = InlineArg->getOption(); 474 if (InlineOpt.matches(options::OPT_finline_functions)) 475 Opts.setInlining(CodeGenOptions::NormalInlining); 476 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 477 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 478 else 479 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 480 } 481 } 482 483 Opts.ExperimentalNewPassManager = Args.hasFlag( 484 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 485 /* Default */ false); 486 487 Opts.DebugPassManager = 488 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 489 /* Default */ false); 490 491 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 492 StringRef Name = A->getValue(); 493 if (Name == "Accelerate") 494 Opts.setVecLib(CodeGenOptions::Accelerate); 495 else if (Name == "SVML") 496 Opts.setVecLib(CodeGenOptions::SVML); 497 else if (Name == "none") 498 Opts.setVecLib(CodeGenOptions::NoLibrary); 499 else 500 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 501 } 502 503 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 504 unsigned Val = 505 llvm::StringSwitch<unsigned>(A->getValue()) 506 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 507 .Case("limited", codegenoptions::LimitedDebugInfo) 508 .Case("standalone", codegenoptions::FullDebugInfo) 509 .Default(~0U); 510 if (Val == ~0U) 511 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 512 << A->getValue(); 513 else 514 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 515 } 516 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 517 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 518 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 519 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 520 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 521 .Default(~0U); 522 if (Val == ~0U) 523 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 524 << A->getValue(); 525 else 526 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 527 } 528 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 529 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 530 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 531 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 532 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 533 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 534 Opts.EnableSplitDwarf = Args.hasArg(OPT_enable_split_dwarf); 535 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 536 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 537 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 538 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 539 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 540 541 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 542 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 543 544 if (const Arg *A = 545 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 546 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 547 548 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 549 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 550 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 551 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 552 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 553 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 554 OPT_fuse_register_sized_bitfield_access); 555 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 556 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 557 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 558 Args.hasArg(OPT_new_struct_path_tbaa); 559 Opts.FineGrainedBitfieldAccesses = 560 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 561 OPT_fno_fine_grained_bitfield_accesses, false); 562 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 563 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 564 Opts.NoCommon = Args.hasArg(OPT_fno_common); 565 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 566 Opts.OptimizeSize = getOptimizationLevelSize(Args); 567 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 568 Args.hasArg(OPT_ffreestanding)); 569 if (Opts.SimplifyLibCalls) 570 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 571 Opts.UnrollLoops = 572 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 573 (Opts.OptimizationLevel > 1)); 574 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 575 576 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 577 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 578 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 579 Opts.DebugInfoForProfiling = Args.hasFlag( 580 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 581 Opts.GnuPubnames = Args.hasArg(OPT_ggnu_pubnames); 582 583 setPGOInstrumentor(Opts, Args, Diags); 584 Opts.InstrProfileOutput = 585 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 586 Opts.ProfileInstrumentUsePath = 587 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 588 if (!Opts.ProfileInstrumentUsePath.empty()) 589 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 590 591 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 592 Opts.setClangABICompat(CodeGenOptions::ClangABI::Latest); 593 594 StringRef Ver = A->getValue(); 595 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 596 unsigned Major, Minor = 0; 597 598 // Check the version number is valid: either 3.x (0 <= x <= 9) or 599 // y or y.0 (4 <= y <= current version). 600 if (!VerParts.first.startswith("0") && 601 !VerParts.first.getAsInteger(10, Major) && 602 3 <= Major && Major <= CLANG_VERSION_MAJOR && 603 (Major == 3 ? VerParts.second.size() == 1 && 604 !VerParts.second.getAsInteger(10, Minor) 605 : VerParts.first.size() == Ver.size() || 606 VerParts.second == "0")) { 607 // Got a valid version number. 608 if (Major == 3 && Minor <= 8) 609 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver3_8); 610 else if (Major <= 4) 611 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver4); 612 } else if (Ver != "latest") { 613 Diags.Report(diag::err_drv_invalid_value) 614 << A->getAsString(Args) << A->getValue(); 615 } 616 } 617 618 Opts.CoverageMapping = 619 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 620 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 621 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 622 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 623 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 624 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 625 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 626 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 627 Opts.CodeModel = getCodeModel(Args, Diags); 628 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 629 Opts.DisableFPElim = 630 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 631 Opts.DisableFree = Args.hasArg(OPT_disable_free); 632 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 633 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 634 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 635 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 636 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 637 Args.hasArg(OPT_cl_fast_relaxed_math); 638 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 639 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 640 Args.hasArg(OPT_cl_finite_math_only) || 641 Args.hasArg(OPT_cl_fast_relaxed_math)); 642 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 643 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 644 Args.hasArg(OPT_cl_finite_math_only) || 645 Args.hasArg(OPT_cl_fast_relaxed_math)); 646 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 647 Args.hasArg(OPT_cl_no_signed_zeros) || 648 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 649 Args.hasArg(OPT_cl_fast_relaxed_math)); 650 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 651 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 652 Opts.CorrectlyRoundedDivSqrt = 653 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 654 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 655 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 656 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 657 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 658 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 659 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 660 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 661 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 662 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 663 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 664 Opts.IncrementalLinkerCompatible = 665 Args.hasArg(OPT_mincremental_linker_compatible); 666 Opts.PIECopyRelocations = 667 Args.hasArg(OPT_mpie_copy_relocations); 668 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 669 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 670 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 671 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 672 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 673 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 674 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 675 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 676 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 677 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 678 Args.hasArg(OPT_cl_fast_relaxed_math); 679 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 680 Opts.RelocationModel = getRelocModel(Args, Diags); 681 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 682 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 683 Diags.Report(diag::err_drv_invalid_value) 684 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 685 << Opts.ThreadModel; 686 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 687 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 688 689 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 690 OPT_fno_function_sections, false); 691 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 692 OPT_fno_data_sections, false); 693 Opts.StackSizeSection = 694 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 695 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 696 OPT_fno_unique_section_names, true); 697 698 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 699 700 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 701 702 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 703 704 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 705 Opts.EmitSummaryIndex = false; 706 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 707 StringRef S = A->getValue(); 708 if (S == "thin") 709 Opts.EmitSummaryIndex = true; 710 else if (S != "full") 711 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 712 } 713 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 714 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 715 if (IK.getLanguage() != InputKind::LLVM_IR) 716 Diags.Report(diag::err_drv_argument_only_allowed_with) 717 << A->getAsString(Args) << "-x ir"; 718 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 719 } 720 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 721 722 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 723 724 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 725 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 726 727 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 728 729 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 730 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 731 732 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 733 734 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 735 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 736 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 737 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 738 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 739 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 740 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 741 Opts.CoverageNoFunctionNamesInData = 742 Args.hasArg(OPT_coverage_no_function_names_in_data); 743 Opts.CoverageExitBlockBeforeBody = 744 Args.hasArg(OPT_coverage_exit_block_before_body); 745 if (Args.hasArg(OPT_coverage_version_EQ)) { 746 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 747 if (CoverageVersion.size() != 4) { 748 Diags.Report(diag::err_drv_invalid_value) 749 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 750 << CoverageVersion; 751 } else { 752 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 753 } 754 } 755 } 756 // Handle -fembed-bitcode option. 757 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 758 StringRef Name = A->getValue(); 759 unsigned Model = llvm::StringSwitch<unsigned>(Name) 760 .Case("off", CodeGenOptions::Embed_Off) 761 .Case("all", CodeGenOptions::Embed_All) 762 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 763 .Case("marker", CodeGenOptions::Embed_Marker) 764 .Default(~0U); 765 if (Model == ~0U) { 766 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 767 Success = false; 768 } else 769 Opts.setEmbedBitcode( 770 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 771 } 772 // FIXME: For backend options that are not yet recorded as function 773 // attributes in the IR, keep track of them so we can embed them in a 774 // separate data section and use them when building the bitcode. 775 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 776 for (const auto &A : Args) { 777 // Do not encode output and input. 778 if (A->getOption().getID() == options::OPT_o || 779 A->getOption().getID() == options::OPT_INPUT || 780 A->getOption().getID() == options::OPT_x || 781 A->getOption().getID() == options::OPT_fembed_bitcode || 782 (A->getOption().getGroup().isValid() && 783 A->getOption().getGroup().getID() == options::OPT_W_Group)) 784 continue; 785 ArgStringList ASL; 786 A->render(Args, ASL); 787 for (const auto &arg : ASL) { 788 StringRef ArgStr(arg); 789 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 790 // using \00 to seperate each commandline options. 791 Opts.CmdArgs.push_back('\0'); 792 } 793 } 794 } 795 796 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 797 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 798 Opts.InstrumentFunctionsAfterInlining = 799 Args.hasArg(OPT_finstrument_functions_after_inlining); 800 Opts.InstrumentFunctionEntryBare = 801 Args.hasArg(OPT_finstrument_function_entry_bare); 802 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 803 Opts.XRayAlwaysEmitCustomEvents = 804 Args.hasArg(OPT_fxray_always_emit_customevents); 805 Opts.XRayInstructionThreshold = 806 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 807 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 808 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 809 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 810 811 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 812 StringRef Name = A->getValue(); 813 if (Name == "full") { 814 Opts.CFProtectionReturn = 1; 815 Opts.CFProtectionBranch = 1; 816 } else if (Name == "return") 817 Opts.CFProtectionReturn = 1; 818 else if (Name == "branch") 819 Opts.CFProtectionBranch = 1; 820 else if (Name != "none") { 821 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 822 Success = false; 823 } 824 } 825 826 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 827 OPT_compress_debug_sections_EQ)) { 828 if (A->getOption().getID() == OPT_compress_debug_sections) { 829 // TODO: be more clever about the compression type auto-detection 830 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 831 } else { 832 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 833 .Case("none", llvm::DebugCompressionType::None) 834 .Case("zlib", llvm::DebugCompressionType::Z) 835 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 836 .Default(llvm::DebugCompressionType::None); 837 Opts.setCompressDebugSections(DCT); 838 } 839 } 840 841 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 842 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 843 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 844 CodeGenOptions::BitcodeFileToLink F; 845 F.Filename = A->getValue(); 846 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) { 847 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 848 // When linking CUDA bitcode, propagate function attributes so that 849 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 850 F.PropagateAttrs = true; 851 F.Internalize = true; 852 } 853 Opts.LinkBitcodeFiles.push_back(F); 854 } 855 Opts.SanitizeCoverageType = 856 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 857 Opts.SanitizeCoverageIndirectCalls = 858 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 859 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 860 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 861 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 862 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 863 Opts.SanitizeCoverage8bitCounters = 864 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 865 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 866 Opts.SanitizeCoverageTracePCGuard = 867 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 868 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 869 Opts.SanitizeCoverageInline8bitCounters = 870 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 871 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 872 Opts.SanitizeCoverageStackDepth = 873 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 874 Opts.SanitizeMemoryTrackOrigins = 875 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 876 Opts.SanitizeMemoryUseAfterDtor = 877 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 878 OPT_fno_sanitize_memory_use_after_dtor, 879 false); 880 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 881 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 882 Opts.SanitizeCfiICallGeneralizePointers = 883 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 884 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 885 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 886 OPT_fno_sanitize_address_use_after_scope)) { 887 Opts.SanitizeAddressUseAfterScope = 888 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 889 } 890 Opts.SanitizeAddressGlobalsDeadStripping = 891 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 892 Opts.SSPBufferSize = 893 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 894 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 895 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 896 StringRef Val = A->getValue(); 897 unsigned StackAlignment = Opts.StackAlignment; 898 Val.getAsInteger(10, StackAlignment); 899 Opts.StackAlignment = StackAlignment; 900 } 901 902 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 903 StringRef Val = A->getValue(); 904 unsigned StackProbeSize = Opts.StackProbeSize; 905 Val.getAsInteger(0, StackProbeSize); 906 Opts.StackProbeSize = StackProbeSize; 907 } 908 909 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 910 StringRef Name = A->getValue(); 911 unsigned Method = llvm::StringSwitch<unsigned>(Name) 912 .Case("legacy", CodeGenOptions::Legacy) 913 .Case("non-legacy", CodeGenOptions::NonLegacy) 914 .Case("mixed", CodeGenOptions::Mixed) 915 .Default(~0U); 916 if (Method == ~0U) { 917 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 918 Success = false; 919 } else { 920 Opts.setObjCDispatchMethod( 921 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 922 } 923 } 924 925 Opts.EmulatedTLS = 926 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 927 928 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 929 StringRef Name = A->getValue(); 930 unsigned Model = llvm::StringSwitch<unsigned>(Name) 931 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 932 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 933 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 934 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 935 .Default(~0U); 936 if (Model == ~0U) { 937 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 938 Success = false; 939 } else { 940 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 941 } 942 } 943 944 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 945 StringRef Val = A->getValue(); 946 if (Val == "ieee") 947 Opts.FPDenormalMode = "ieee"; 948 else if (Val == "preserve-sign") 949 Opts.FPDenormalMode = "preserve-sign"; 950 else if (Val == "positive-zero") 951 Opts.FPDenormalMode = "positive-zero"; 952 else 953 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 954 } 955 956 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 957 if (A->getOption().matches(OPT_fpcc_struct_return)) { 958 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 959 } else { 960 assert(A->getOption().matches(OPT_freg_struct_return)); 961 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 962 } 963 } 964 965 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 966 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 967 bool NeedLocTracking = false; 968 969 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 970 if (!Opts.OptRecordFile.empty()) 971 NeedLocTracking = true; 972 973 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 974 Opts.OptimizationRemarkPattern = 975 GenerateOptimizationRemarkRegex(Diags, Args, A); 976 NeedLocTracking = true; 977 } 978 979 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 980 Opts.OptimizationRemarkMissedPattern = 981 GenerateOptimizationRemarkRegex(Diags, Args, A); 982 NeedLocTracking = true; 983 } 984 985 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 986 Opts.OptimizationRemarkAnalysisPattern = 987 GenerateOptimizationRemarkRegex(Diags, Args, A); 988 NeedLocTracking = true; 989 } 990 991 Opts.DiagnosticsWithHotness = 992 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 993 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 994 bool UsingProfile = UsingSampleProfile || 995 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 996 997 if (Opts.DiagnosticsWithHotness && !UsingProfile) 998 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 999 << "-fdiagnostics-show-hotness"; 1000 1001 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1002 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1003 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1004 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1005 << "-fdiagnostics-hotness-threshold="; 1006 1007 // If the user requested to use a sample profile for PGO, then the 1008 // backend will need to track source location information so the profile 1009 // can be incorporated into the IR. 1010 if (UsingSampleProfile) 1011 NeedLocTracking = true; 1012 1013 // If the user requested a flag that requires source locations available in 1014 // the backend, make sure that the backend tracks source location information. 1015 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1016 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1017 1018 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1019 1020 // Parse -fsanitize-recover= arguments. 1021 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1022 parseSanitizerKinds("-fsanitize-recover=", 1023 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1024 Opts.SanitizeRecover); 1025 parseSanitizerKinds("-fsanitize-trap=", 1026 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1027 Opts.SanitizeTrap); 1028 1029 Opts.CudaGpuBinaryFileNames = 1030 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 1031 1032 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1033 1034 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1035 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1036 1037 return Success; 1038 } 1039 1040 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1041 ArgList &Args) { 1042 using namespace options; 1043 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1044 Opts.Targets = Args.getAllArgValues(OPT_MT); 1045 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1046 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1047 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1048 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1049 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1050 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1051 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 1052 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1053 Opts.ModuleDependencyOutputDir = 1054 Args.getLastArgValue(OPT_module_dependency_dir); 1055 if (Args.hasArg(OPT_MV)) 1056 Opts.OutputFormat = DependencyOutputFormat::NMake; 1057 // Add sanitizer blacklists as extra dependencies. 1058 // They won't be discovered by the regular preprocessor, so 1059 // we let make / ninja to know about this implicit dependency. 1060 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1061 // Only the -fmodule-file=<file> form. 1062 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1063 StringRef Val = A->getValue(); 1064 if (Val.find('=') == StringRef::npos) 1065 Opts.ExtraDeps.push_back(Val); 1066 } 1067 } 1068 1069 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1070 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1071 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1072 // Support both clang's -f[no-]color-diagnostics and gcc's 1073 // -f[no-]diagnostics-colors[=never|always|auto]. 1074 enum { 1075 Colors_On, 1076 Colors_Off, 1077 Colors_Auto 1078 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1079 for (Arg *A : Args) { 1080 const Option &O = A->getOption(); 1081 if (O.matches(options::OPT_fcolor_diagnostics) || 1082 O.matches(options::OPT_fdiagnostics_color)) { 1083 ShowColors = Colors_On; 1084 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1085 O.matches(options::OPT_fno_diagnostics_color)) { 1086 ShowColors = Colors_Off; 1087 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1088 StringRef Value(A->getValue()); 1089 if (Value == "always") 1090 ShowColors = Colors_On; 1091 else if (Value == "never") 1092 ShowColors = Colors_Off; 1093 else if (Value == "auto") 1094 ShowColors = Colors_Auto; 1095 } 1096 } 1097 return ShowColors == Colors_On || 1098 (ShowColors == Colors_Auto && 1099 llvm::sys::Process::StandardErrHasColors()); 1100 } 1101 1102 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1103 DiagnosticsEngine *Diags) { 1104 bool Success = true; 1105 for (const auto &Prefix : VerifyPrefixes) { 1106 // Every prefix must start with a letter and contain only alphanumeric 1107 // characters, hyphens, and underscores. 1108 auto BadChar = std::find_if(Prefix.begin(), Prefix.end(), 1109 [](char C){return !isAlphanumeric(C) 1110 && C != '-' && C != '_';}); 1111 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1112 Success = false; 1113 if (Diags) { 1114 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1115 Diags->Report(diag::note_drv_verify_prefix_spelling); 1116 } 1117 } 1118 } 1119 return Success; 1120 } 1121 1122 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1123 DiagnosticsEngine *Diags, 1124 bool DefaultDiagColor, bool DefaultShowOpt) { 1125 using namespace options; 1126 bool Success = true; 1127 1128 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1129 if (Arg *A = 1130 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1131 Opts.DiagnosticSerializationFile = A->getValue(); 1132 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1133 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1134 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1135 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1136 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1137 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1138 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1139 OPT_fno_show_column, 1140 /*Default=*/true); 1141 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1142 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1143 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1144 Opts.ShowOptionNames = 1145 Args.hasFlag(OPT_fdiagnostics_show_option, 1146 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1147 1148 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1149 1150 // Default behavior is to not to show note include stacks. 1151 Opts.ShowNoteIncludeStack = false; 1152 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1153 OPT_fno_diagnostics_show_note_include_stack)) 1154 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1155 Opts.ShowNoteIncludeStack = true; 1156 1157 StringRef ShowOverloads = 1158 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1159 if (ShowOverloads == "best") 1160 Opts.setShowOverloads(Ovl_Best); 1161 else if (ShowOverloads == "all") 1162 Opts.setShowOverloads(Ovl_All); 1163 else { 1164 Success = false; 1165 if (Diags) 1166 Diags->Report(diag::err_drv_invalid_value) 1167 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1168 << ShowOverloads; 1169 } 1170 1171 StringRef ShowCategory = 1172 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1173 if (ShowCategory == "none") 1174 Opts.ShowCategories = 0; 1175 else if (ShowCategory == "id") 1176 Opts.ShowCategories = 1; 1177 else if (ShowCategory == "name") 1178 Opts.ShowCategories = 2; 1179 else { 1180 Success = false; 1181 if (Diags) 1182 Diags->Report(diag::err_drv_invalid_value) 1183 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1184 << ShowCategory; 1185 } 1186 1187 StringRef Format = 1188 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1189 if (Format == "clang") 1190 Opts.setFormat(DiagnosticOptions::Clang); 1191 else if (Format == "msvc") 1192 Opts.setFormat(DiagnosticOptions::MSVC); 1193 else if (Format == "msvc-fallback") { 1194 Opts.setFormat(DiagnosticOptions::MSVC); 1195 Opts.CLFallbackMode = true; 1196 } else if (Format == "vi") 1197 Opts.setFormat(DiagnosticOptions::Vi); 1198 else { 1199 Success = false; 1200 if (Diags) 1201 Diags->Report(diag::err_drv_invalid_value) 1202 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1203 << Format; 1204 } 1205 1206 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1207 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1208 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1209 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1210 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1211 if (Args.hasArg(OPT_verify)) 1212 Opts.VerifyPrefixes.push_back("expected"); 1213 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1214 // then sort it to prepare for fast lookup using std::binary_search. 1215 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1216 Opts.VerifyDiagnostics = false; 1217 Success = false; 1218 } 1219 else 1220 std::sort(Opts.VerifyPrefixes.begin(), Opts.VerifyPrefixes.end()); 1221 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1222 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1223 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1224 Diags, DiagMask); 1225 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1226 DiagMask = DiagnosticLevelMask::All; 1227 Opts.setVerifyIgnoreUnexpected(DiagMask); 1228 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1229 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1230 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1231 Opts.MacroBacktraceLimit = 1232 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1233 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1234 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1235 Args, OPT_ftemplate_backtrace_limit, 1236 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1237 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1238 Args, OPT_fconstexpr_backtrace_limit, 1239 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1240 Opts.SpellCheckingLimit = getLastArgIntValue( 1241 Args, OPT_fspell_checking_limit, 1242 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1243 Opts.SnippetLineLimit = getLastArgIntValue( 1244 Args, OPT_fcaret_diagnostics_max_lines, 1245 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1246 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1247 DiagnosticOptions::DefaultTabStop, Diags); 1248 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1249 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1250 if (Diags) 1251 Diags->Report(diag::warn_ignoring_ftabstop_value) 1252 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1253 } 1254 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1255 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1256 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1257 1258 return Success; 1259 } 1260 1261 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1262 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1263 } 1264 1265 /// Parse the argument to the -ftest-module-file-extension 1266 /// command-line argument. 1267 /// 1268 /// \returns true on error, false on success. 1269 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1270 std::string &BlockName, 1271 unsigned &MajorVersion, 1272 unsigned &MinorVersion, 1273 bool &Hashed, 1274 std::string &UserInfo) { 1275 SmallVector<StringRef, 5> Args; 1276 Arg.split(Args, ':', 5); 1277 if (Args.size() < 5) 1278 return true; 1279 1280 BlockName = Args[0]; 1281 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1282 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1283 if (Args[3].getAsInteger(2, Hashed)) return true; 1284 if (Args.size() > 4) 1285 UserInfo = Args[4]; 1286 return false; 1287 } 1288 1289 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1290 DiagnosticsEngine &Diags, 1291 bool &IsHeaderFile) { 1292 using namespace options; 1293 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1294 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1295 switch (A->getOption().getID()) { 1296 default: 1297 llvm_unreachable("Invalid option in group!"); 1298 case OPT_ast_list: 1299 Opts.ProgramAction = frontend::ASTDeclList; break; 1300 case OPT_ast_dump: 1301 case OPT_ast_dump_all: 1302 case OPT_ast_dump_lookups: 1303 Opts.ProgramAction = frontend::ASTDump; break; 1304 case OPT_ast_print: 1305 Opts.ProgramAction = frontend::ASTPrint; break; 1306 case OPT_ast_view: 1307 Opts.ProgramAction = frontend::ASTView; break; 1308 case OPT_dump_raw_tokens: 1309 Opts.ProgramAction = frontend::DumpRawTokens; break; 1310 case OPT_dump_tokens: 1311 Opts.ProgramAction = frontend::DumpTokens; break; 1312 case OPT_S: 1313 Opts.ProgramAction = frontend::EmitAssembly; break; 1314 case OPT_emit_llvm_bc: 1315 Opts.ProgramAction = frontend::EmitBC; break; 1316 case OPT_emit_html: 1317 Opts.ProgramAction = frontend::EmitHTML; break; 1318 case OPT_emit_llvm: 1319 Opts.ProgramAction = frontend::EmitLLVM; break; 1320 case OPT_emit_llvm_only: 1321 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1322 case OPT_emit_codegen_only: 1323 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1324 case OPT_emit_obj: 1325 Opts.ProgramAction = frontend::EmitObj; break; 1326 case OPT_fixit_EQ: 1327 Opts.FixItSuffix = A->getValue(); 1328 // fall-through! 1329 case OPT_fixit: 1330 Opts.ProgramAction = frontend::FixIt; break; 1331 case OPT_emit_module: 1332 Opts.ProgramAction = frontend::GenerateModule; break; 1333 case OPT_emit_module_interface: 1334 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1335 case OPT_emit_pch: 1336 Opts.ProgramAction = frontend::GeneratePCH; break; 1337 case OPT_emit_pth: 1338 Opts.ProgramAction = frontend::GeneratePTH; break; 1339 case OPT_init_only: 1340 Opts.ProgramAction = frontend::InitOnly; break; 1341 case OPT_fsyntax_only: 1342 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1343 case OPT_module_file_info: 1344 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1345 case OPT_verify_pch: 1346 Opts.ProgramAction = frontend::VerifyPCH; break; 1347 case OPT_print_decl_contexts: 1348 Opts.ProgramAction = frontend::PrintDeclContext; break; 1349 case OPT_print_preamble: 1350 Opts.ProgramAction = frontend::PrintPreamble; break; 1351 case OPT_E: 1352 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1353 case OPT_rewrite_macros: 1354 Opts.ProgramAction = frontend::RewriteMacros; break; 1355 case OPT_rewrite_objc: 1356 Opts.ProgramAction = frontend::RewriteObjC; break; 1357 case OPT_rewrite_test: 1358 Opts.ProgramAction = frontend::RewriteTest; break; 1359 case OPT_analyze: 1360 Opts.ProgramAction = frontend::RunAnalysis; break; 1361 case OPT_migrate: 1362 Opts.ProgramAction = frontend::MigrateSource; break; 1363 case OPT_Eonly: 1364 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1365 } 1366 } 1367 1368 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1369 Opts.Plugins.emplace_back(A->getValue(0)); 1370 Opts.ProgramAction = frontend::PluginAction; 1371 Opts.ActionName = A->getValue(); 1372 } 1373 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1374 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1375 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1376 1377 for (const std::string &Arg : 1378 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1379 std::string BlockName; 1380 unsigned MajorVersion; 1381 unsigned MinorVersion; 1382 bool Hashed; 1383 std::string UserInfo; 1384 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1385 MinorVersion, Hashed, UserInfo)) { 1386 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1387 1388 continue; 1389 } 1390 1391 // Add the testing module file extension. 1392 Opts.ModuleFileExtensions.push_back( 1393 std::make_shared<TestModuleFileExtension>( 1394 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1395 } 1396 1397 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1398 Opts.CodeCompletionAt = 1399 ParsedSourceLocation::FromString(A->getValue()); 1400 if (Opts.CodeCompletionAt.FileName.empty()) 1401 Diags.Report(diag::err_drv_invalid_value) 1402 << A->getAsString(Args) << A->getValue(); 1403 } 1404 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1405 1406 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1407 Opts.Plugins = Args.getAllArgValues(OPT_load); 1408 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1409 Opts.ShowHelp = Args.hasArg(OPT_help); 1410 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1411 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1412 Opts.ShowVersion = Args.hasArg(OPT_version); 1413 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1414 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1415 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1416 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1417 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1418 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1419 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1420 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1421 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1422 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1423 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1424 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1425 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1426 // Only the -fmodule-file=<file> form. 1427 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1428 StringRef Val = A->getValue(); 1429 if (Val.find('=') == StringRef::npos) 1430 Opts.ModuleFiles.push_back(Val); 1431 } 1432 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1433 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1434 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1435 1436 Opts.CodeCompleteOpts.IncludeMacros 1437 = Args.hasArg(OPT_code_completion_macros); 1438 Opts.CodeCompleteOpts.IncludeCodePatterns 1439 = Args.hasArg(OPT_code_completion_patterns); 1440 Opts.CodeCompleteOpts.IncludeGlobals 1441 = !Args.hasArg(OPT_no_code_completion_globals); 1442 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1443 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1444 Opts.CodeCompleteOpts.IncludeBriefComments 1445 = Args.hasArg(OPT_code_completion_brief_comments); 1446 1447 Opts.OverrideRecordLayoutsFile 1448 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1449 Opts.AuxTriple = 1450 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1451 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1452 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1453 1454 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1455 OPT_arcmt_modify, 1456 OPT_arcmt_migrate)) { 1457 switch (A->getOption().getID()) { 1458 default: 1459 llvm_unreachable("missed a case"); 1460 case OPT_arcmt_check: 1461 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1462 break; 1463 case OPT_arcmt_modify: 1464 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1465 break; 1466 case OPT_arcmt_migrate: 1467 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1468 break; 1469 } 1470 } 1471 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1472 Opts.ARCMTMigrateReportOut 1473 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1474 Opts.ARCMTMigrateEmitARCErrors 1475 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1476 1477 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1478 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1479 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1480 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1481 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1482 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1483 if (Args.hasArg(OPT_objcmt_migrate_property)) 1484 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1485 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1486 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1487 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1488 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1489 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1490 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1491 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1492 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1493 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1494 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1495 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1496 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1497 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1498 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1499 if (Args.hasArg(OPT_objcmt_atomic_property)) 1500 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1501 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1502 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1503 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1504 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1505 if (Args.hasArg(OPT_objcmt_migrate_all)) 1506 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1507 1508 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1509 1510 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1511 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1512 Diags.Report(diag::err_drv_argument_not_allowed_with) 1513 << "ARC migration" << "ObjC migration"; 1514 } 1515 1516 InputKind DashX(InputKind::Unknown); 1517 if (const Arg *A = Args.getLastArg(OPT_x)) { 1518 StringRef XValue = A->getValue(); 1519 1520 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1521 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1522 bool Preprocessed = XValue.consume_back("-cpp-output"); 1523 bool ModuleMap = XValue.consume_back("-module-map"); 1524 IsHeaderFile = 1525 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1526 1527 // Principal languages. 1528 DashX = llvm::StringSwitch<InputKind>(XValue) 1529 .Case("c", InputKind::C) 1530 .Case("cl", InputKind::OpenCL) 1531 .Case("cuda", InputKind::CUDA) 1532 .Case("c++", InputKind::CXX) 1533 .Case("objective-c", InputKind::ObjC) 1534 .Case("objective-c++", InputKind::ObjCXX) 1535 .Case("renderscript", InputKind::RenderScript) 1536 .Default(InputKind::Unknown); 1537 1538 // "objc[++]-cpp-output" is an acceptable synonym for 1539 // "objective-c[++]-cpp-output". 1540 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1541 DashX = llvm::StringSwitch<InputKind>(XValue) 1542 .Case("objc", InputKind::ObjC) 1543 .Case("objc++", InputKind::ObjCXX) 1544 .Default(InputKind::Unknown); 1545 1546 // Some special cases cannot be combined with suffixes. 1547 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1548 DashX = llvm::StringSwitch<InputKind>(XValue) 1549 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1550 .Case("assembler-with-cpp", InputKind::Asm) 1551 .Cases("ast", "pcm", 1552 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1553 .Case("ir", InputKind::LLVM_IR) 1554 .Default(InputKind::Unknown); 1555 1556 if (DashX.isUnknown()) 1557 Diags.Report(diag::err_drv_invalid_value) 1558 << A->getAsString(Args) << A->getValue(); 1559 1560 if (Preprocessed) 1561 DashX = DashX.getPreprocessed(); 1562 if (ModuleMap) 1563 DashX = DashX.withFormat(InputKind::ModuleMap); 1564 } 1565 1566 // '-' is the default input if none is given. 1567 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1568 Opts.Inputs.clear(); 1569 if (Inputs.empty()) 1570 Inputs.push_back("-"); 1571 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1572 InputKind IK = DashX; 1573 if (IK.isUnknown()) { 1574 IK = FrontendOptions::getInputKindForExtension( 1575 StringRef(Inputs[i]).rsplit('.').second); 1576 // FIXME: Warn on this? 1577 if (IK.isUnknown()) 1578 IK = InputKind::C; 1579 // FIXME: Remove this hack. 1580 if (i == 0) 1581 DashX = IK; 1582 } 1583 1584 // The -emit-module action implicitly takes a module map. 1585 if (Opts.ProgramAction == frontend::GenerateModule && 1586 IK.getFormat() == InputKind::Source) 1587 IK = IK.withFormat(InputKind::ModuleMap); 1588 1589 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1590 } 1591 1592 return DashX; 1593 } 1594 1595 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1596 void *MainAddr) { 1597 std::string ClangExecutable = 1598 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1599 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1600 1601 // Compute the path to the resource directory. 1602 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1603 SmallString<128> P(Dir); 1604 if (ClangResourceDir != "") 1605 llvm::sys::path::append(P, ClangResourceDir); 1606 else 1607 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1608 "clang", CLANG_VERSION_STRING); 1609 1610 return P.str(); 1611 } 1612 1613 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1614 const std::string &WorkingDir) { 1615 using namespace options; 1616 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1617 Opts.Verbose = Args.hasArg(OPT_v); 1618 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1619 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1620 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1621 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1622 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1623 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1624 1625 // Canonicalize -fmodules-cache-path before storing it. 1626 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1627 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1628 if (WorkingDir.empty()) 1629 llvm::sys::fs::make_absolute(P); 1630 else 1631 llvm::sys::fs::make_absolute(WorkingDir, P); 1632 } 1633 llvm::sys::path::remove_dots(P); 1634 Opts.ModuleCachePath = P.str(); 1635 1636 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1637 // Only the -fmodule-file=<name>=<file> form. 1638 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1639 StringRef Val = A->getValue(); 1640 if (Val.find('=') != StringRef::npos) 1641 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1642 } 1643 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1644 Opts.AddPrebuiltModulePath(A->getValue()); 1645 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1646 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1647 Opts.ModulesValidateDiagnosticOptions = 1648 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1649 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1650 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1651 Opts.ModuleCachePruneInterval = 1652 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1653 Opts.ModuleCachePruneAfter = 1654 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1655 Opts.ModulesValidateOncePerBuildSession = 1656 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1657 Opts.BuildSessionTimestamp = 1658 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1659 Opts.ModulesValidateSystemHeaders = 1660 Args.hasArg(OPT_fmodules_validate_system_headers); 1661 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1662 Opts.ModuleFormat = A->getValue(); 1663 1664 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1665 StringRef MacroDef = A->getValue(); 1666 Opts.ModulesIgnoreMacros.insert( 1667 llvm::CachedHashString(MacroDef.split('=').first)); 1668 } 1669 1670 // Add -I..., -F..., and -index-header-map options in order. 1671 bool IsIndexHeaderMap = false; 1672 bool IsSysrootSpecified = 1673 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1674 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1675 if (A->getOption().matches(OPT_index_header_map)) { 1676 // -index-header-map applies to the next -I or -F. 1677 IsIndexHeaderMap = true; 1678 continue; 1679 } 1680 1681 frontend::IncludeDirGroup Group = 1682 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1683 1684 bool IsFramework = A->getOption().matches(OPT_F); 1685 std::string Path = A->getValue(); 1686 1687 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1688 SmallString<32> Buffer; 1689 llvm::sys::path::append(Buffer, Opts.Sysroot, 1690 llvm::StringRef(A->getValue()).substr(1)); 1691 Path = Buffer.str(); 1692 } 1693 1694 Opts.AddPath(Path, Group, IsFramework, 1695 /*IgnoreSysroot*/ true); 1696 IsIndexHeaderMap = false; 1697 } 1698 1699 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1700 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1701 for (const Arg *A : 1702 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1703 if (A->getOption().matches(OPT_iprefix)) 1704 Prefix = A->getValue(); 1705 else if (A->getOption().matches(OPT_iwithprefix)) 1706 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1707 else 1708 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1709 } 1710 1711 for (const Arg *A : Args.filtered(OPT_idirafter)) 1712 Opts.AddPath(A->getValue(), frontend::After, false, true); 1713 for (const Arg *A : Args.filtered(OPT_iquote)) 1714 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1715 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1716 Opts.AddPath(A->getValue(), frontend::System, false, 1717 !A->getOption().matches(OPT_iwithsysroot)); 1718 for (const Arg *A : Args.filtered(OPT_iframework)) 1719 Opts.AddPath(A->getValue(), frontend::System, true, true); 1720 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot)) 1721 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1722 /*IgnoreSysRoot=*/false); 1723 1724 // Add the paths for the various language specific isystem flags. 1725 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1726 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1727 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1728 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1729 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1730 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1731 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1732 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1733 1734 // Add the internal paths from a driver that detects standard include paths. 1735 for (const Arg *A : 1736 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1737 frontend::IncludeDirGroup Group = frontend::System; 1738 if (A->getOption().matches(OPT_internal_externc_isystem)) 1739 Group = frontend::ExternCSystem; 1740 Opts.AddPath(A->getValue(), Group, false, true); 1741 } 1742 1743 // Add the path prefixes which are implicitly treated as being system headers. 1744 for (const Arg *A : 1745 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1746 Opts.AddSystemHeaderPrefix( 1747 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1748 1749 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1750 Opts.AddVFSOverlayFile(A->getValue()); 1751 } 1752 1753 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1754 const llvm::Triple &T, 1755 PreprocessorOptions &PPOpts, 1756 LangStandard::Kind LangStd) { 1757 // Set some properties which depend solely on the input kind; it would be nice 1758 // to move these to the language standard, and have the driver resolve the 1759 // input kind + language standard. 1760 // 1761 // FIXME: Perhaps a better model would be for a single source file to have 1762 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 1763 // simultaneously active? 1764 if (IK.getLanguage() == InputKind::Asm) { 1765 Opts.AsmPreprocessor = 1; 1766 } else if (IK.isObjectiveC()) { 1767 Opts.ObjC1 = Opts.ObjC2 = 1; 1768 } 1769 1770 if (LangStd == LangStandard::lang_unspecified) { 1771 // Based on the base language, pick one. 1772 switch (IK.getLanguage()) { 1773 case InputKind::Unknown: 1774 case InputKind::LLVM_IR: 1775 llvm_unreachable("Invalid input kind!"); 1776 case InputKind::OpenCL: 1777 LangStd = LangStandard::lang_opencl10; 1778 break; 1779 case InputKind::CUDA: 1780 LangStd = LangStandard::lang_cuda; 1781 break; 1782 case InputKind::Asm: 1783 case InputKind::C: 1784 // The PS4 uses C99 as the default C standard. 1785 if (T.isPS4()) 1786 LangStd = LangStandard::lang_gnu99; 1787 else 1788 LangStd = LangStandard::lang_gnu11; 1789 break; 1790 case InputKind::ObjC: 1791 LangStd = LangStandard::lang_gnu11; 1792 break; 1793 case InputKind::CXX: 1794 case InputKind::ObjCXX: 1795 LangStd = LangStandard::lang_gnucxx14; 1796 break; 1797 case InputKind::RenderScript: 1798 LangStd = LangStandard::lang_c99; 1799 break; 1800 } 1801 } 1802 1803 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1804 Opts.LineComment = Std.hasLineComments(); 1805 Opts.C99 = Std.isC99(); 1806 Opts.C11 = Std.isC11(); 1807 Opts.C17 = Std.isC17(); 1808 Opts.CPlusPlus = Std.isCPlusPlus(); 1809 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1810 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1811 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 1812 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 1813 Opts.Digraphs = Std.hasDigraphs(); 1814 Opts.GNUMode = Std.isGNUMode(); 1815 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 1816 Opts.HexFloats = Std.hasHexFloats(); 1817 Opts.ImplicitInt = Std.hasImplicitInt(); 1818 1819 // Set OpenCL Version. 1820 Opts.OpenCL = Std.isOpenCL(); 1821 if (LangStd == LangStandard::lang_opencl10) 1822 Opts.OpenCLVersion = 100; 1823 else if (LangStd == LangStandard::lang_opencl11) 1824 Opts.OpenCLVersion = 110; 1825 else if (LangStd == LangStandard::lang_opencl12) 1826 Opts.OpenCLVersion = 120; 1827 else if (LangStd == LangStandard::lang_opencl20) 1828 Opts.OpenCLVersion = 200; 1829 1830 // OpenCL has some additional defaults. 1831 if (Opts.OpenCL) { 1832 Opts.AltiVec = 0; 1833 Opts.ZVector = 0; 1834 Opts.LaxVectorConversions = 0; 1835 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 1836 Opts.NativeHalfType = 1; 1837 Opts.NativeHalfArgsAndReturns = 1; 1838 // Include default header file for OpenCL. 1839 if (Opts.IncludeDefaultHeader) { 1840 PPOpts.Includes.push_back("opencl-c.h"); 1841 } 1842 } 1843 1844 Opts.CUDA = IK.getLanguage() == InputKind::CUDA; 1845 if (Opts.CUDA) 1846 // Set default FP_CONTRACT to FAST. 1847 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 1848 1849 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 1850 if (Opts.RenderScript) { 1851 Opts.NativeHalfType = 1; 1852 Opts.NativeHalfArgsAndReturns = 1; 1853 } 1854 1855 // OpenCL and C++ both have bool, true, false keywords. 1856 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1857 1858 // OpenCL has half keyword 1859 Opts.Half = Opts.OpenCL; 1860 1861 // C++ has wchar_t keyword. 1862 Opts.WChar = Opts.CPlusPlus; 1863 1864 Opts.GNUKeywords = Opts.GNUMode; 1865 Opts.CXXOperatorNames = Opts.CPlusPlus; 1866 1867 Opts.AlignedAllocation = Opts.CPlusPlus17; 1868 1869 Opts.DollarIdents = !Opts.AsmPreprocessor; 1870 } 1871 1872 /// Attempt to parse a visibility value out of the given argument. 1873 static Visibility parseVisibility(Arg *arg, ArgList &args, 1874 DiagnosticsEngine &diags) { 1875 StringRef value = arg->getValue(); 1876 if (value == "default") { 1877 return DefaultVisibility; 1878 } else if (value == "hidden" || value == "internal") { 1879 return HiddenVisibility; 1880 } else if (value == "protected") { 1881 // FIXME: diagnose if target does not support protected visibility 1882 return ProtectedVisibility; 1883 } 1884 1885 diags.Report(diag::err_drv_invalid_value) 1886 << arg->getAsString(args) << value; 1887 return DefaultVisibility; 1888 } 1889 1890 /// Check if input file kind and language standard are compatible. 1891 static bool IsInputCompatibleWithStandard(InputKind IK, 1892 const LangStandard &S) { 1893 switch (IK.getLanguage()) { 1894 case InputKind::Unknown: 1895 case InputKind::LLVM_IR: 1896 llvm_unreachable("should not parse language flags for this input"); 1897 1898 case InputKind::C: 1899 case InputKind::ObjC: 1900 case InputKind::RenderScript: 1901 return S.getLanguage() == InputKind::C; 1902 1903 case InputKind::OpenCL: 1904 return S.getLanguage() == InputKind::OpenCL; 1905 1906 case InputKind::CXX: 1907 case InputKind::ObjCXX: 1908 return S.getLanguage() == InputKind::CXX; 1909 1910 case InputKind::CUDA: 1911 // FIXME: What -std= values should be permitted for CUDA compilations? 1912 return S.getLanguage() == InputKind::CUDA || 1913 S.getLanguage() == InputKind::CXX; 1914 1915 case InputKind::Asm: 1916 // Accept (and ignore) all -std= values. 1917 // FIXME: The -std= value is not ignored; it affects the tokenization 1918 // and preprocessing rules if we're preprocessing this asm input. 1919 return true; 1920 } 1921 1922 llvm_unreachable("unexpected input language"); 1923 } 1924 1925 /// Get language name for given input kind. 1926 static const StringRef GetInputKindName(InputKind IK) { 1927 switch (IK.getLanguage()) { 1928 case InputKind::C: 1929 return "C"; 1930 case InputKind::ObjC: 1931 return "Objective-C"; 1932 case InputKind::CXX: 1933 return "C++"; 1934 case InputKind::ObjCXX: 1935 return "Objective-C++"; 1936 case InputKind::OpenCL: 1937 return "OpenCL"; 1938 case InputKind::CUDA: 1939 return "CUDA"; 1940 case InputKind::RenderScript: 1941 return "RenderScript"; 1942 1943 case InputKind::Asm: 1944 return "Asm"; 1945 case InputKind::LLVM_IR: 1946 return "LLVM IR"; 1947 1948 case InputKind::Unknown: 1949 break; 1950 } 1951 llvm_unreachable("unknown input language"); 1952 } 1953 1954 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1955 const TargetOptions &TargetOpts, 1956 PreprocessorOptions &PPOpts, 1957 DiagnosticsEngine &Diags) { 1958 // FIXME: Cleanup per-file based stuff. 1959 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1960 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1961 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1962 #define LANGSTANDARD(id, name, lang, desc, features) \ 1963 .Case(name, LangStandard::lang_##id) 1964 #define LANGSTANDARD_ALIAS(id, alias) \ 1965 .Case(alias, LangStandard::lang_##id) 1966 #include "clang/Frontend/LangStandards.def" 1967 .Default(LangStandard::lang_unspecified); 1968 if (LangStd == LangStandard::lang_unspecified) { 1969 Diags.Report(diag::err_drv_invalid_value) 1970 << A->getAsString(Args) << A->getValue(); 1971 // Report supported standards with short description. 1972 for (unsigned KindValue = 0; 1973 KindValue != LangStandard::lang_unspecified; 1974 ++KindValue) { 1975 const LangStandard &Std = LangStandard::getLangStandardForKind( 1976 static_cast<LangStandard::Kind>(KindValue)); 1977 if (IsInputCompatibleWithStandard(IK, Std)) { 1978 auto Diag = Diags.Report(diag::note_drv_use_standard); 1979 Diag << Std.getName() << Std.getDescription(); 1980 unsigned NumAliases = 0; 1981 #define LANGSTANDARD(id, name, lang, desc, features) 1982 #define LANGSTANDARD_ALIAS(id, alias) \ 1983 if (KindValue == LangStandard::lang_##id) ++NumAliases; 1984 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1985 #include "clang/Frontend/LangStandards.def" 1986 Diag << NumAliases; 1987 #define LANGSTANDARD(id, name, lang, desc, features) 1988 #define LANGSTANDARD_ALIAS(id, alias) \ 1989 if (KindValue == LangStandard::lang_##id) Diag << alias; 1990 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1991 #include "clang/Frontend/LangStandards.def" 1992 } 1993 } 1994 } else { 1995 // Valid standard, check to make sure language and standard are 1996 // compatible. 1997 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1998 if (!IsInputCompatibleWithStandard(IK, Std)) { 1999 Diags.Report(diag::err_drv_argument_not_allowed_with) 2000 << A->getAsString(Args) << GetInputKindName(IK); 2001 } 2002 } 2003 } 2004 2005 // -cl-std only applies for OpenCL language standards. 2006 // Override the -std option in this case. 2007 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2008 LangStandard::Kind OpenCLLangStd 2009 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2010 .Cases("cl", "CL", LangStandard::lang_opencl10) 2011 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2012 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2013 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2014 .Default(LangStandard::lang_unspecified); 2015 2016 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2017 Diags.Report(diag::err_drv_invalid_value) 2018 << A->getAsString(Args) << A->getValue(); 2019 } 2020 else 2021 LangStd = OpenCLLangStd; 2022 } 2023 2024 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2025 2026 llvm::Triple T(TargetOpts.Triple); 2027 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2028 2029 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2030 // This option should be deprecated for CL > 1.0 because 2031 // this option was added for compatibility with OpenCL 1.0. 2032 if (Args.getLastArg(OPT_cl_strict_aliasing) 2033 && Opts.OpenCLVersion > 100) { 2034 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 2035 std::string(".") + 2036 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 2037 Diags.Report(diag::warn_option_invalid_ocl_version) 2038 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2039 } 2040 2041 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2042 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2043 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2044 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2045 // name, as it doesn't seem a useful distinction. 2046 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2047 Opts.GNUKeywords); 2048 2049 if (Args.hasArg(OPT_fno_operator_names)) 2050 Opts.CXXOperatorNames = 0; 2051 2052 if (Args.hasArg(OPT_fcuda_is_device)) 2053 Opts.CUDAIsDevice = 1; 2054 2055 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2056 Opts.CUDAAllowVariadicFunctions = 1; 2057 2058 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2059 Opts.CUDAHostDeviceConstexpr = 0; 2060 2061 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 2062 Opts.CUDADeviceFlushDenormalsToZero = 1; 2063 2064 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2065 Opts.CUDADeviceApproxTranscendentals = 1; 2066 2067 if (Opts.ObjC1) { 2068 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2069 StringRef value = arg->getValue(); 2070 if (Opts.ObjCRuntime.tryParse(value)) 2071 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2072 } 2073 2074 if (Args.hasArg(OPT_fobjc_gc_only)) 2075 Opts.setGC(LangOptions::GCOnly); 2076 else if (Args.hasArg(OPT_fobjc_gc)) 2077 Opts.setGC(LangOptions::HybridGC); 2078 else if (Args.hasArg(OPT_fobjc_arc)) { 2079 Opts.ObjCAutoRefCount = 1; 2080 if (!Opts.ObjCRuntime.allowsARC()) 2081 Diags.Report(diag::err_arc_unsupported_on_runtime); 2082 } 2083 2084 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2085 // whether the feature is actually enabled. This is predominantly 2086 // determined by -fobjc-runtime, but we allow it to be overridden 2087 // from the command line for testing purposes. 2088 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2089 Opts.ObjCWeakRuntime = 1; 2090 else 2091 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2092 2093 // ObjCWeak determines whether __weak is actually enabled. 2094 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2095 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2096 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2097 assert(!Opts.ObjCWeak); 2098 } else if (Opts.getGC() != LangOptions::NonGC) { 2099 Diags.Report(diag::err_objc_weak_with_gc); 2100 } else if (!Opts.ObjCWeakRuntime) { 2101 Diags.Report(diag::err_objc_weak_unsupported); 2102 } else { 2103 Opts.ObjCWeak = 1; 2104 } 2105 } else if (Opts.ObjCAutoRefCount) { 2106 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2107 } 2108 2109 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2110 Opts.ObjCInferRelatedResultType = 0; 2111 2112 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2113 Opts.ObjCSubscriptingLegacyRuntime = 2114 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2115 } 2116 2117 if (Args.hasArg(OPT_fgnu89_inline)) { 2118 if (Opts.CPlusPlus) 2119 Diags.Report(diag::err_drv_argument_not_allowed_with) 2120 << "-fgnu89-inline" << GetInputKindName(IK); 2121 else 2122 Opts.GNUInline = 1; 2123 } 2124 2125 if (Args.hasArg(OPT_fapple_kext)) { 2126 if (!Opts.CPlusPlus) 2127 Diags.Report(diag::warn_c_kext); 2128 else 2129 Opts.AppleKext = 1; 2130 } 2131 2132 if (Args.hasArg(OPT_print_ivar_layout)) 2133 Opts.ObjCGCBitmapPrint = 1; 2134 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2135 Opts.NoConstantCFStrings = 1; 2136 2137 if (Args.hasArg(OPT_fzvector)) 2138 Opts.ZVector = 1; 2139 2140 if (Args.hasArg(OPT_pthread)) 2141 Opts.POSIXThreads = 1; 2142 2143 // The value-visibility mode defaults to "default". 2144 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2145 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2146 } else { 2147 Opts.setValueVisibilityMode(DefaultVisibility); 2148 } 2149 2150 // The type-visibility mode defaults to the value-visibility mode. 2151 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2152 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2153 } else { 2154 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2155 } 2156 2157 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2158 Opts.InlineVisibilityHidden = 1; 2159 2160 if (Args.hasArg(OPT_ftrapv)) { 2161 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2162 // Set the handler, if one is specified. 2163 Opts.OverflowHandler = 2164 Args.getLastArgValue(OPT_ftrapv_handler); 2165 } 2166 else if (Args.hasArg(OPT_fwrapv)) 2167 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2168 2169 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2170 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2171 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2172 Opts.MSCompatibilityVersion = 0; 2173 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2174 VersionTuple VT; 2175 if (VT.tryParse(A->getValue())) 2176 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2177 << A->getValue(); 2178 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2179 VT.getMinor().getValueOr(0) * 100000 + 2180 VT.getSubminor().getValueOr(0); 2181 } 2182 2183 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 2184 // is specified, or -std is set to a conforming mode. 2185 // Trigraphs are disabled by default in c++1z onwards. 2186 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2187 Opts.Trigraphs = 2188 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2189 2190 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2191 OPT_fno_dollars_in_identifiers, 2192 Opts.DollarIdents); 2193 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2194 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2195 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2196 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2197 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2198 Opts.ConstStrings); 2199 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2200 Opts.LaxVectorConversions = 0; 2201 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2202 Opts.ThreadsafeStatics = 0; 2203 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2204 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2205 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2206 2207 // Handle exception personalities 2208 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2209 options::OPT_fseh_exceptions, 2210 options::OPT_fdwarf_exceptions); 2211 if (A) { 2212 const Option &Opt = A->getOption(); 2213 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2214 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2215 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2216 } 2217 2218 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2219 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2220 2221 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2222 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2223 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2224 && Opts.OpenCLVersion >= 200); 2225 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2226 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2227 2228 // Enable [[]] attributes in C++11 by default. 2229 Opts.DoubleSquareBracketAttributes = 2230 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2231 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11); 2232 2233 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2234 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2235 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2236 Opts.ModulesDeclUse = 2237 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2238 Opts.ModulesLocalVisibility = 2239 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2240 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2241 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2242 Opts.ModulesSearchAll = Opts.Modules && 2243 !Args.hasArg(OPT_fno_modules_search_all) && 2244 Args.hasArg(OPT_fmodules_search_all); 2245 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2246 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2247 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2248 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2249 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2250 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2251 .Case("char", 1) 2252 .Case("short", 2) 2253 .Case("int", 4) 2254 .Default(0); 2255 if (Opts.WCharSize == 0) 2256 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2257 } 2258 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2259 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2260 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2261 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2262 if (!Opts.NoBuiltin) 2263 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2264 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2265 Opts.RelaxedTemplateTemplateArgs = 2266 Args.hasArg(OPT_frelaxed_template_template_args); 2267 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2268 Opts.AlignedAllocation = 2269 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2270 Opts.AlignedAllocation); 2271 Opts.AlignedAllocationUnavailable = 2272 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2273 Opts.NewAlignOverride = 2274 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2275 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2276 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2277 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2278 << A->getValue(); 2279 Opts.NewAlignOverride = 0; 2280 } 2281 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2282 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2283 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2284 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2285 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2286 Opts.InstantiationDepth = 2287 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2288 Opts.ArrowDepth = 2289 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2290 Opts.ConstexprCallDepth = 2291 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2292 Opts.ConstexprStepLimit = 2293 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2294 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2295 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2296 Opts.NumLargeByValueCopy = 2297 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2298 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2299 Opts.ObjCConstantStringClass = 2300 Args.getLastArgValue(OPT_fconstant_string_class); 2301 Opts.ObjCDefaultSynthProperties = 2302 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2303 Opts.EncodeExtendedBlockSig = 2304 Args.hasArg(OPT_fencode_extended_block_signature); 2305 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2306 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2307 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2308 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2309 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2310 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2311 Opts.Static = Args.hasArg(OPT_static_define); 2312 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2313 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2314 || Args.hasArg(OPT_fdump_record_layouts); 2315 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2316 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2317 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2318 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2319 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2320 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2321 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2322 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2323 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2324 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2325 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2326 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2327 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2328 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2329 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2330 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2331 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2332 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2333 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2334 // is enabled. 2335 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2336 | Opts.NativeHalfArgsAndReturns; 2337 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2338 2339 // __declspec is enabled by default for the PS4 by the driver, and also 2340 // enabled for Microsoft Extensions or Borland Extensions, here. 2341 // 2342 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2343 // CUDA extension. However, it is required for supporting 2344 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2345 // been rewritten in terms of something more generic, remove the Opts.CUDA 2346 // term here. 2347 Opts.DeclSpecKeyword = 2348 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2349 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2350 2351 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2352 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2353 .Case("target", LangOptions::ASMM_Target) 2354 .Case("no", LangOptions::ASMM_Off) 2355 .Case("yes", LangOptions::ASMM_On) 2356 .Default(255)) { 2357 default: 2358 Diags.Report(diag::err_drv_invalid_value) 2359 << "-faddress-space-map-mangling=" << A->getValue(); 2360 break; 2361 case LangOptions::ASMM_Target: 2362 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2363 break; 2364 case LangOptions::ASMM_On: 2365 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2366 break; 2367 case LangOptions::ASMM_Off: 2368 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2369 break; 2370 } 2371 } 2372 2373 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2374 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2375 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2376 A->getValue()) 2377 .Case("single", 2378 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2379 .Case("multiple", 2380 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2381 .Case("virtual", 2382 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2383 .Default(LangOptions::PPTMK_BestCase); 2384 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2385 Diags.Report(diag::err_drv_invalid_value) 2386 << "-fms-memptr-rep=" << A->getValue(); 2387 2388 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2389 } 2390 2391 // Check for MS default calling conventions being specified. 2392 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2393 LangOptions::DefaultCallingConvention DefaultCC = 2394 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2395 .Case("cdecl", LangOptions::DCC_CDecl) 2396 .Case("fastcall", LangOptions::DCC_FastCall) 2397 .Case("stdcall", LangOptions::DCC_StdCall) 2398 .Case("vectorcall", LangOptions::DCC_VectorCall) 2399 .Case("regcall", LangOptions::DCC_RegCall) 2400 .Default(LangOptions::DCC_None); 2401 if (DefaultCC == LangOptions::DCC_None) 2402 Diags.Report(diag::err_drv_invalid_value) 2403 << "-fdefault-calling-conv=" << A->getValue(); 2404 2405 llvm::Triple T(TargetOpts.Triple); 2406 llvm::Triple::ArchType Arch = T.getArch(); 2407 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2408 DefaultCC == LangOptions::DCC_StdCall) && 2409 Arch != llvm::Triple::x86; 2410 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2411 DefaultCC == LangOptions::DCC_RegCall) && 2412 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2413 if (emitError) 2414 Diags.Report(diag::err_drv_argument_not_allowed_with) 2415 << A->getSpelling() << T.getTriple(); 2416 else 2417 Opts.setDefaultCallingConv(DefaultCC); 2418 } 2419 2420 // -mrtd option 2421 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2422 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2423 Diags.Report(diag::err_drv_argument_not_allowed_with) 2424 << A->getSpelling() << "-fdefault-calling-conv"; 2425 else { 2426 llvm::Triple T(TargetOpts.Triple); 2427 if (T.getArch() != llvm::Triple::x86) 2428 Diags.Report(diag::err_drv_argument_not_allowed_with) 2429 << A->getSpelling() << T.getTriple(); 2430 else 2431 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2432 } 2433 } 2434 2435 // Check if -fopenmp is specified. 2436 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2437 // Check if -fopenmp-simd is specified. 2438 Opts.OpenMPSimd = !Opts.OpenMP && Args.hasFlag(options::OPT_fopenmp_simd, 2439 options::OPT_fno_openmp_simd, 2440 /*Default=*/false); 2441 Opts.OpenMPUseTLS = 2442 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2443 Opts.OpenMPIsDevice = 2444 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2445 2446 if (Opts.OpenMP || Opts.OpenMPSimd) { 2447 if (int Version = 2448 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, 2449 Opts.OpenMPSimd ? 45 : Opts.OpenMP, Diags)) 2450 Opts.OpenMP = Version; 2451 else if (Opts.OpenMPSimd) 2452 Opts.OpenMP = 45; 2453 // Provide diagnostic when a given target is not expected to be an OpenMP 2454 // device or host. 2455 if (!Opts.OpenMPIsDevice) { 2456 switch (T.getArch()) { 2457 default: 2458 break; 2459 // Add unsupported host targets here: 2460 case llvm::Triple::nvptx: 2461 case llvm::Triple::nvptx64: 2462 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2463 << TargetOpts.Triple; 2464 break; 2465 } 2466 } 2467 } 2468 2469 // Set the flag to prevent the implementation from emitting device exception 2470 // handling code for those requiring so. 2471 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2472 Opts.Exceptions = 0; 2473 Opts.CXXExceptions = 0; 2474 } 2475 2476 // Get the OpenMP target triples if any. 2477 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2478 2479 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2480 llvm::Triple TT(A->getValue(i)); 2481 2482 if (TT.getArch() == llvm::Triple::UnknownArch || 2483 !(TT.getArch() == llvm::Triple::ppc || 2484 TT.getArch() == llvm::Triple::ppc64 || 2485 TT.getArch() == llvm::Triple::ppc64le || 2486 TT.getArch() == llvm::Triple::nvptx || 2487 TT.getArch() == llvm::Triple::nvptx64 || 2488 TT.getArch() == llvm::Triple::x86 || 2489 TT.getArch() == llvm::Triple::x86_64)) 2490 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2491 else 2492 Opts.OMPTargetTriples.push_back(TT); 2493 } 2494 } 2495 2496 // Get OpenMP host file path if any and report if a non existent file is 2497 // found 2498 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2499 Opts.OMPHostIRFile = A->getValue(); 2500 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2501 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2502 << Opts.OMPHostIRFile; 2503 } 2504 2505 // Record whether the __DEPRECATED define was requested. 2506 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2507 OPT_fno_deprecated_macro, 2508 Opts.Deprecated); 2509 2510 // FIXME: Eliminate this dependency. 2511 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2512 OptSize = getOptimizationLevelSize(Args); 2513 Opts.Optimize = Opt != 0; 2514 Opts.OptimizeSize = OptSize != 0; 2515 2516 // This is the __NO_INLINE__ define, which just depends on things like the 2517 // optimization level and -fno-inline, not actually whether the backend has 2518 // inlining enabled. 2519 Opts.NoInlineDefine = !Opts.Optimize; 2520 if (Arg *InlineArg = Args.getLastArg( 2521 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2522 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2523 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2524 Opts.NoInlineDefine = true; 2525 2526 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2527 Args.hasArg(OPT_cl_fast_relaxed_math); 2528 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2529 Args.hasArg(OPT_cl_finite_math_only) || 2530 Args.hasArg(OPT_cl_fast_relaxed_math); 2531 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2532 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2533 Args.hasArg(OPT_cl_fast_relaxed_math); 2534 2535 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2536 StringRef Val = A->getValue(); 2537 if (Val == "fast") 2538 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2539 else if (Val == "on") 2540 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2541 else if (Val == "off") 2542 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2543 else 2544 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2545 } 2546 2547 Opts.RetainCommentsFromSystemHeaders = 2548 Args.hasArg(OPT_fretain_comments_from_system_headers); 2549 2550 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2551 switch (SSP) { 2552 default: 2553 Diags.Report(diag::err_drv_invalid_value) 2554 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2555 break; 2556 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2557 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2558 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2559 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2560 } 2561 2562 // Parse -fsanitize= arguments. 2563 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2564 Diags, Opts.Sanitize); 2565 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2566 Opts.SanitizeAddressFieldPadding = 2567 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2568 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2569 2570 // -fxray-instrument 2571 Opts.XRayInstrument = 2572 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2573 2574 // -fxray-always-emit-customevents 2575 Opts.XRayAlwaysEmitCustomEvents = 2576 Args.hasFlag(OPT_fxray_always_emit_customevents, 2577 OPT_fnoxray_always_emit_customevents, false); 2578 2579 // -fxray-{always,never}-instrument= filenames. 2580 Opts.XRayAlwaysInstrumentFiles = 2581 Args.getAllArgValues(OPT_fxray_always_instrument); 2582 Opts.XRayNeverInstrumentFiles = 2583 Args.getAllArgValues(OPT_fxray_never_instrument); 2584 2585 // -fallow-editor-placeholders 2586 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2587 } 2588 2589 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 2590 switch (Action) { 2591 case frontend::ASTDeclList: 2592 case frontend::ASTDump: 2593 case frontend::ASTPrint: 2594 case frontend::ASTView: 2595 case frontend::EmitAssembly: 2596 case frontend::EmitBC: 2597 case frontend::EmitHTML: 2598 case frontend::EmitLLVM: 2599 case frontend::EmitLLVMOnly: 2600 case frontend::EmitCodeGenOnly: 2601 case frontend::EmitObj: 2602 case frontend::FixIt: 2603 case frontend::GenerateModule: 2604 case frontend::GenerateModuleInterface: 2605 case frontend::GeneratePCH: 2606 case frontend::GeneratePTH: 2607 case frontend::ParseSyntaxOnly: 2608 case frontend::ModuleFileInfo: 2609 case frontend::VerifyPCH: 2610 case frontend::PluginAction: 2611 case frontend::PrintDeclContext: 2612 case frontend::RewriteObjC: 2613 case frontend::RewriteTest: 2614 case frontend::RunAnalysis: 2615 case frontend::MigrateSource: 2616 return false; 2617 2618 case frontend::DumpRawTokens: 2619 case frontend::DumpTokens: 2620 case frontend::InitOnly: 2621 case frontend::PrintPreamble: 2622 case frontend::PrintPreprocessedInput: 2623 case frontend::RewriteMacros: 2624 case frontend::RunPreprocessorOnly: 2625 return true; 2626 } 2627 llvm_unreachable("invalid frontend action"); 2628 } 2629 2630 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2631 DiagnosticsEngine &Diags, 2632 frontend::ActionKind Action) { 2633 using namespace options; 2634 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2635 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2636 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2637 Opts.TokenCache = A->getValue(); 2638 else 2639 Opts.TokenCache = Opts.ImplicitPTHInclude; 2640 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2641 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2642 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2643 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 2644 2645 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2646 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2647 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2648 2649 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2650 StringRef Value(A->getValue()); 2651 size_t Comma = Value.find(','); 2652 unsigned Bytes = 0; 2653 unsigned EndOfLine = 0; 2654 2655 if (Comma == StringRef::npos || 2656 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2657 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2658 Diags.Report(diag::err_drv_preamble_format); 2659 else { 2660 Opts.PrecompiledPreambleBytes.first = Bytes; 2661 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2662 } 2663 } 2664 2665 // Add macros from the command line. 2666 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2667 if (A->getOption().matches(OPT_D)) 2668 Opts.addMacroDef(A->getValue()); 2669 else 2670 Opts.addMacroUndef(A->getValue()); 2671 } 2672 2673 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2674 2675 // Add the ordered list of -includes. 2676 for (const Arg *A : Args.filtered(OPT_include)) 2677 Opts.Includes.emplace_back(A->getValue()); 2678 2679 for (const Arg *A : Args.filtered(OPT_chain_include)) 2680 Opts.ChainedIncludes.emplace_back(A->getValue()); 2681 2682 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2683 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2684 2685 if (Split.second.empty()) { 2686 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2687 continue; 2688 } 2689 2690 Opts.addRemappedFile(Split.first, Split.second); 2691 } 2692 2693 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2694 StringRef Name = A->getValue(); 2695 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2696 .Case("libc++", ARCXX_libcxx) 2697 .Case("libstdc++", ARCXX_libstdcxx) 2698 .Case("none", ARCXX_nolib) 2699 .Default(~0U); 2700 if (Library == ~0U) 2701 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2702 else 2703 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2704 } 2705 2706 // Always avoid lexing editor placeholders when we're just running the 2707 // preprocessor as we never want to emit the 2708 // "editor placeholder in source file" error in PP only mode. 2709 if (isStrictlyPreprocessorAction(Action)) 2710 Opts.LexEditorPlaceholders = false; 2711 } 2712 2713 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2714 ArgList &Args, 2715 frontend::ActionKind Action) { 2716 using namespace options; 2717 2718 if (isStrictlyPreprocessorAction(Action)) 2719 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2720 else 2721 Opts.ShowCPP = 0; 2722 2723 Opts.ShowComments = Args.hasArg(OPT_C); 2724 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2725 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2726 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2727 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2728 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2729 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 2730 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2731 } 2732 2733 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2734 DiagnosticsEngine &Diags) { 2735 using namespace options; 2736 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2737 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2738 StringRef Value = A->getValue(); 2739 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2740 .Case("default", llvm::EABI::Default) 2741 .Case("4", llvm::EABI::EABI4) 2742 .Case("5", llvm::EABI::EABI5) 2743 .Case("gnu", llvm::EABI::GNU) 2744 .Default(llvm::EABI::Unknown); 2745 if (EABIVersion == llvm::EABI::Unknown) 2746 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2747 << Value; 2748 else 2749 Opts.EABIVersion = EABIVersion; 2750 } 2751 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2752 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2753 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2754 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2755 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2756 // Use the default target triple if unspecified. 2757 if (Opts.Triple.empty()) 2758 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2759 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2760 } 2761 2762 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2763 const char *const *ArgBegin, 2764 const char *const *ArgEnd, 2765 DiagnosticsEngine &Diags) { 2766 bool Success = true; 2767 2768 // Parse the arguments. 2769 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2770 const unsigned IncludedFlagsBitmask = options::CC1Option; 2771 unsigned MissingArgIndex, MissingArgCount; 2772 InputArgList Args = 2773 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2774 MissingArgCount, IncludedFlagsBitmask); 2775 LangOptions &LangOpts = *Res.getLangOpts(); 2776 2777 // Check for missing argument error. 2778 if (MissingArgCount) { 2779 Diags.Report(diag::err_drv_missing_argument) 2780 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2781 Success = false; 2782 } 2783 2784 // Issue errors on unknown arguments. 2785 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2786 auto ArgString = A->getAsString(Args); 2787 std::string Nearest; 2788 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 2789 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 2790 else 2791 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 2792 << ArgString << Nearest; 2793 Success = false; 2794 } 2795 2796 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2797 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2798 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2799 Success &= 2800 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2801 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2802 ParseCommentArgs(LangOpts.CommentOpts, Args); 2803 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2804 // FIXME: We shouldn't have to pass the DashX option around here 2805 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2806 LangOpts.IsHeaderFile); 2807 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2808 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2809 Res.getTargetOpts()); 2810 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2811 Res.getFileSystemOpts().WorkingDir); 2812 if (DashX.getFormat() == InputKind::Precompiled || 2813 DashX.getLanguage() == InputKind::LLVM_IR) { 2814 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2815 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2816 // what the input type is. 2817 if (Args.hasArg(OPT_fobjc_arc)) 2818 LangOpts.ObjCAutoRefCount = 1; 2819 // PIClevel and PIELevel are needed during code generation and this should be 2820 // set regardless of the input type. 2821 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2822 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2823 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2824 Diags, LangOpts.Sanitize); 2825 } else { 2826 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2827 // FIXME: Should we really be calling this for an InputKind::Asm input? 2828 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2829 Res.getPreprocessorOpts(), Diags); 2830 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2831 LangOpts.ObjCExceptions = 1; 2832 } 2833 2834 if (LangOpts.CUDA) { 2835 // During CUDA device-side compilation, the aux triple is the 2836 // triple used for host compilation. 2837 if (LangOpts.CUDAIsDevice) 2838 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2839 } 2840 2841 // Set the triple of the host for OpenMP device compile. 2842 if (LangOpts.OpenMPIsDevice) 2843 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2844 2845 // FIXME: Override value name discarding when asan or msan is used because the 2846 // backend passes depend on the name of the alloca in order to print out 2847 // names. 2848 Res.getCodeGenOpts().DiscardValueNames &= 2849 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2850 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2851 2852 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 2853 Res.getFrontendOpts().ProgramAction); 2854 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2855 Res.getFrontendOpts().ProgramAction); 2856 2857 // Turn on -Wspir-compat for SPIR target. 2858 llvm::Triple T(Res.getTargetOpts().Triple); 2859 auto Arch = T.getArch(); 2860 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2861 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2862 } 2863 2864 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 2865 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 2866 !Res.getLangOpts()->Sanitize.empty()) { 2867 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 2868 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 2869 } 2870 return Success; 2871 } 2872 2873 std::string CompilerInvocation::getModuleHash() const { 2874 // Note: For QoI reasons, the things we use as a hash here should all be 2875 // dumped via the -module-info flag. 2876 using llvm::hash_code; 2877 using llvm::hash_value; 2878 using llvm::hash_combine; 2879 2880 // Start the signature with the compiler version. 2881 // FIXME: We'd rather use something more cryptographically sound than 2882 // CityHash, but this will do for now. 2883 hash_code code = hash_value(getClangFullRepositoryVersion()); 2884 2885 // Extend the signature with the language options 2886 #define LANGOPT(Name, Bits, Default, Description) \ 2887 code = hash_combine(code, LangOpts->Name); 2888 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2889 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2890 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2891 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2892 #include "clang/Basic/LangOptions.def" 2893 2894 for (StringRef Feature : LangOpts->ModuleFeatures) 2895 code = hash_combine(code, Feature); 2896 2897 // Extend the signature with the target options. 2898 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2899 TargetOpts->ABI); 2900 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2901 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2902 2903 // Extend the signature with preprocessor options. 2904 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2905 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2906 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2907 2908 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2909 I = getPreprocessorOpts().Macros.begin(), 2910 IEnd = getPreprocessorOpts().Macros.end(); 2911 I != IEnd; ++I) { 2912 // If we're supposed to ignore this macro for the purposes of modules, 2913 // don't put it into the hash. 2914 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2915 // Check whether we're ignoring this macro. 2916 StringRef MacroDef = I->first; 2917 if (hsOpts.ModulesIgnoreMacros.count( 2918 llvm::CachedHashString(MacroDef.split('=').first))) 2919 continue; 2920 } 2921 2922 code = hash_combine(code, I->first, I->second); 2923 } 2924 2925 // Extend the signature with the sysroot and other header search options. 2926 code = hash_combine(code, hsOpts.Sysroot, 2927 hsOpts.ModuleFormat, 2928 hsOpts.UseDebugInfo, 2929 hsOpts.UseBuiltinIncludes, 2930 hsOpts.UseStandardSystemIncludes, 2931 hsOpts.UseStandardCXXIncludes, 2932 hsOpts.UseLibcxx, 2933 hsOpts.ModulesValidateDiagnosticOptions); 2934 code = hash_combine(code, hsOpts.ResourceDir); 2935 2936 // Extend the signature with the user build path. 2937 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2938 2939 // Extend the signature with the module file extensions. 2940 const FrontendOptions &frontendOpts = getFrontendOpts(); 2941 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2942 code = ext->hashExtension(code); 2943 } 2944 2945 // Extend the signature with the enabled sanitizers, if at least one is 2946 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 2947 SanitizerSet SanHash = LangOpts->Sanitize; 2948 SanHash.clear(getPPTransparentSanitizers()); 2949 if (!SanHash.empty()) 2950 code = hash_combine(code, SanHash.Mask); 2951 2952 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2953 } 2954 2955 namespace clang { 2956 2957 template<typename IntTy> 2958 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2959 IntTy Default, 2960 DiagnosticsEngine *Diags) { 2961 IntTy Res = Default; 2962 if (Arg *A = Args.getLastArg(Id)) { 2963 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2964 if (Diags) 2965 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2966 << A->getValue(); 2967 } 2968 } 2969 return Res; 2970 } 2971 2972 2973 // Declared in clang/Frontend/Utils.h. 2974 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2975 DiagnosticsEngine *Diags) { 2976 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2977 } 2978 2979 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2980 uint64_t Default, 2981 DiagnosticsEngine *Diags) { 2982 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2983 } 2984 2985 void BuryPointer(const void *Ptr) { 2986 // This function may be called only a small fixed amount of times per each 2987 // invocation, otherwise we do actually have a leak which we want to report. 2988 // If this function is called more than kGraveYardMaxSize times, the pointers 2989 // will not be properly buried and a leak detector will report a leak, which 2990 // is what we want in such case. 2991 static const size_t kGraveYardMaxSize = 16; 2992 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2993 static std::atomic<unsigned> GraveYardSize; 2994 unsigned Idx = GraveYardSize++; 2995 if (Idx >= kGraveYardMaxSize) 2996 return; 2997 GraveYard[Idx] = Ptr; 2998 } 2999 3000 IntrusiveRefCntPtr<vfs::FileSystem> 3001 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3002 DiagnosticsEngine &Diags) { 3003 return createVFSFromCompilerInvocation(CI, Diags, vfs::getRealFileSystem()); 3004 } 3005 3006 IntrusiveRefCntPtr<vfs::FileSystem> 3007 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3008 DiagnosticsEngine &Diags, 3009 IntrusiveRefCntPtr<vfs::FileSystem> BaseFS) { 3010 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3011 return BaseFS; 3012 3013 IntrusiveRefCntPtr<vfs::OverlayFileSystem> Overlay( 3014 new vfs::OverlayFileSystem(BaseFS)); 3015 // earlier vfs files are on the bottom 3016 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3017 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3018 BaseFS->getBufferForFile(File); 3019 if (!Buffer) { 3020 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3021 return IntrusiveRefCntPtr<vfs::FileSystem>(); 3022 } 3023 3024 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 3025 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 3026 if (!FS.get()) { 3027 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3028 return IntrusiveRefCntPtr<vfs::FileSystem>(); 3029 } 3030 Overlay->pushOverlay(FS); 3031 } 3032 return Overlay; 3033 } 3034 } // end namespace clang 3035