1 //===--- CompilerInvocation.cpp -------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Frontend/CompilerInvocation.h" 11 #include "TestModuleFileExtension.h" 12 #include "clang/Basic/Builtins.h" 13 #include "clang/Basic/FileManager.h" 14 #include "clang/Basic/Version.h" 15 #include "clang/Config/config.h" 16 #include "clang/Driver/DriverDiagnostic.h" 17 #include "clang/Driver/Options.h" 18 #include "clang/Driver/Util.h" 19 #include "clang/Frontend/FrontendDiagnostic.h" 20 #include "clang/Frontend/LangStandard.h" 21 #include "clang/Frontend/Utils.h" 22 #include "clang/Lex/HeaderSearchOptions.h" 23 #include "clang/Lex/PreprocessorOptions.h" 24 #include "clang/Serialization/ASTReader.h" 25 #include "clang/Serialization/ModuleFileExtension.h" 26 #include "llvm/ADT/Hashing.h" 27 #include "llvm/ADT/STLExtras.h" 28 #include "llvm/ADT/SmallVector.h" 29 #include "llvm/ADT/StringExtras.h" 30 #include "llvm/ADT/StringSwitch.h" 31 #include "llvm/ADT/Triple.h" 32 #include "llvm/Linker/Linker.h" 33 #include "llvm/Option/Arg.h" 34 #include "llvm/Option/ArgList.h" 35 #include "llvm/Option/OptTable.h" 36 #include "llvm/Option/Option.h" 37 #include "llvm/ProfileData/InstrProfReader.h" 38 #include "llvm/Support/CodeGen.h" 39 #include "llvm/Support/ErrorHandling.h" 40 #include "llvm/Support/FileSystem.h" 41 #include "llvm/Support/Host.h" 42 #include "llvm/Support/Path.h" 43 #include "llvm/Support/Process.h" 44 #include "llvm/Target/TargetOptions.h" 45 #include "llvm/Support/ScopedPrinter.h" 46 #include <atomic> 47 #include <memory> 48 #include <sys/stat.h> 49 #include <system_error> 50 using namespace clang; 51 52 //===----------------------------------------------------------------------===// 53 // Initialization. 54 //===----------------------------------------------------------------------===// 55 56 CompilerInvocationBase::CompilerInvocationBase() 57 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 58 DiagnosticOpts(new DiagnosticOptions()), 59 HeaderSearchOpts(new HeaderSearchOptions()), 60 PreprocessorOpts(new PreprocessorOptions()) {} 61 62 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 63 : LangOpts(new LangOptions(*X.getLangOpts())), 64 TargetOpts(new TargetOptions(X.getTargetOpts())), 65 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 66 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 67 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 68 69 CompilerInvocationBase::~CompilerInvocationBase() {} 70 71 //===----------------------------------------------------------------------===// 72 // Deserialization (from args) 73 //===----------------------------------------------------------------------===// 74 75 using namespace clang::driver; 76 using namespace clang::driver::options; 77 using namespace llvm::opt; 78 79 // 80 81 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 82 DiagnosticsEngine &Diags) { 83 unsigned DefaultOpt = 0; 84 if (IK.getLanguage() == InputKind::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 85 DefaultOpt = 2; 86 87 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 88 if (A->getOption().matches(options::OPT_O0)) 89 return 0; 90 91 if (A->getOption().matches(options::OPT_Ofast)) 92 return 3; 93 94 assert (A->getOption().matches(options::OPT_O)); 95 96 StringRef S(A->getValue()); 97 if (S == "s" || S == "z" || S.empty()) 98 return 2; 99 100 if (S == "g") 101 return 1; 102 103 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 104 } 105 106 return DefaultOpt; 107 } 108 109 static unsigned getOptimizationLevelSize(ArgList &Args) { 110 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 111 if (A->getOption().matches(options::OPT_O)) { 112 switch (A->getValue()[0]) { 113 default: 114 return 0; 115 case 's': 116 return 1; 117 case 'z': 118 return 2; 119 } 120 } 121 } 122 return 0; 123 } 124 125 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 126 OptSpecifier GroupWithValue, 127 std::vector<std::string> &Diagnostics) { 128 for (Arg *A : Args.filtered(Group)) { 129 if (A->getOption().getKind() == Option::FlagClass) { 130 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 131 // its name (minus the "W" or "R" at the beginning) to the warning list. 132 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 133 } else if (A->getOption().matches(GroupWithValue)) { 134 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 135 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 136 } else { 137 // Otherwise, add its value (for OPT_W_Joined and similar). 138 for (const char *Arg : A->getValues()) 139 Diagnostics.emplace_back(Arg); 140 } 141 } 142 } 143 144 static void getAllNoBuiltinFuncValues(ArgList &Args, 145 std::vector<std::string> &Funcs) { 146 SmallVector<const char *, 8> Values; 147 for (const auto &Arg : Args) { 148 const Option &O = Arg->getOption(); 149 if (O.matches(options::OPT_fno_builtin_)) { 150 const char *FuncName = Arg->getValue(); 151 if (Builtin::Context::isBuiltinFunc(FuncName)) 152 Values.push_back(FuncName); 153 } 154 } 155 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 156 } 157 158 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 159 DiagnosticsEngine &Diags) { 160 using namespace options; 161 bool Success = true; 162 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 163 StringRef Name = A->getValue(); 164 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 165 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 166 .Case(CMDFLAG, NAME##Model) 167 #include "clang/StaticAnalyzer/Core/Analyses.def" 168 .Default(NumStores); 169 if (Value == NumStores) { 170 Diags.Report(diag::err_drv_invalid_value) 171 << A->getAsString(Args) << Name; 172 Success = false; 173 } else { 174 Opts.AnalysisStoreOpt = Value; 175 } 176 } 177 178 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 179 StringRef Name = A->getValue(); 180 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 181 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 182 .Case(CMDFLAG, NAME##Model) 183 #include "clang/StaticAnalyzer/Core/Analyses.def" 184 .Default(NumConstraints); 185 if (Value == NumConstraints) { 186 Diags.Report(diag::err_drv_invalid_value) 187 << A->getAsString(Args) << Name; 188 Success = false; 189 } else { 190 Opts.AnalysisConstraintsOpt = Value; 191 } 192 } 193 194 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 195 StringRef Name = A->getValue(); 196 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 197 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 198 .Case(CMDFLAG, PD_##NAME) 199 #include "clang/StaticAnalyzer/Core/Analyses.def" 200 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 201 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 202 Diags.Report(diag::err_drv_invalid_value) 203 << A->getAsString(Args) << Name; 204 Success = false; 205 } else { 206 Opts.AnalysisDiagOpt = Value; 207 } 208 } 209 210 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 211 StringRef Name = A->getValue(); 212 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 213 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 214 .Case(CMDFLAG, NAME) 215 #include "clang/StaticAnalyzer/Core/Analyses.def" 216 .Default(NumPurgeModes); 217 if (Value == NumPurgeModes) { 218 Diags.Report(diag::err_drv_invalid_value) 219 << A->getAsString(Args) << Name; 220 Success = false; 221 } else { 222 Opts.AnalysisPurgeOpt = Value; 223 } 224 } 225 226 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 227 StringRef Name = A->getValue(); 228 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 229 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 230 .Case(CMDFLAG, NAME) 231 #include "clang/StaticAnalyzer/Core/Analyses.def" 232 .Default(NumInliningModes); 233 if (Value == NumInliningModes) { 234 Diags.Report(diag::err_drv_invalid_value) 235 << A->getAsString(Args) << Name; 236 Success = false; 237 } else { 238 Opts.InliningMode = Value; 239 } 240 } 241 242 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 243 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 244 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 245 246 Opts.visualizeExplodedGraphWithGraphViz = 247 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 248 Opts.visualizeExplodedGraphWithUbiGraph = 249 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 250 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 251 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 252 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 253 Opts.AnalyzeNestedBlocks = 254 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 255 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 256 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 257 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 258 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 259 Opts.maxBlockVisitOnPath = 260 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 261 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 262 Opts.InlineMaxStackDepth = 263 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 264 Opts.InlineMaxStackDepth, Diags); 265 266 Opts.CheckersControlList.clear(); 267 for (const Arg *A : 268 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 269 A->claim(); 270 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 271 // We can have a list of comma separated checker names, e.g: 272 // '-analyzer-checker=cocoa,unix' 273 StringRef checkerList = A->getValue(); 274 SmallVector<StringRef, 4> checkers; 275 checkerList.split(checkers, ","); 276 for (StringRef checker : checkers) 277 Opts.CheckersControlList.emplace_back(checker, enable); 278 } 279 280 // Go through the analyzer configuration options. 281 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 282 A->claim(); 283 // We can have a list of comma separated config names, e.g: 284 // '-analyzer-config key1=val1,key2=val2' 285 StringRef configList = A->getValue(); 286 SmallVector<StringRef, 4> configVals; 287 configList.split(configVals, ","); 288 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 289 StringRef key, val; 290 std::tie(key, val) = configVals[i].split("="); 291 if (val.empty()) { 292 Diags.Report(SourceLocation(), 293 diag::err_analyzer_config_no_value) << configVals[i]; 294 Success = false; 295 break; 296 } 297 if (val.find('=') != StringRef::npos) { 298 Diags.Report(SourceLocation(), 299 diag::err_analyzer_config_multiple_values) 300 << configVals[i]; 301 Success = false; 302 break; 303 } 304 Opts.Config[key] = val; 305 } 306 } 307 308 return Success; 309 } 310 311 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 312 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 313 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 314 return true; 315 } 316 317 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 318 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 319 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 320 } 321 322 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 323 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 324 StringRef Value = A->getValue(); 325 if (Value == "small" || Value == "kernel" || Value == "medium" || 326 Value == "large") 327 return Value; 328 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 329 } 330 return "default"; 331 } 332 333 static StringRef getRelocModel(ArgList &Args, DiagnosticsEngine &Diags) { 334 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 335 StringRef Value = A->getValue(); 336 if (Value == "static" || Value == "pic" || Value == "ropi" || 337 Value == "rwpi" || Value == "ropi-rwpi" || Value == "dynamic-no-pic") 338 return Value; 339 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 340 } 341 return "pic"; 342 } 343 344 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 345 /// It returns a pointer to the newly generated Regex instance. 346 static std::shared_ptr<llvm::Regex> 347 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 348 Arg *RpassArg) { 349 StringRef Val = RpassArg->getValue(); 350 std::string RegexError; 351 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 352 if (!Pattern->isValid(RegexError)) { 353 Diags.Report(diag::err_drv_optimization_remark_pattern) 354 << RegexError << RpassArg->getAsString(Args); 355 Pattern.reset(); 356 } 357 return Pattern; 358 } 359 360 static bool parseDiagnosticLevelMask(StringRef FlagName, 361 const std::vector<std::string> &Levels, 362 DiagnosticsEngine *Diags, 363 DiagnosticLevelMask &M) { 364 bool Success = true; 365 for (const auto &Level : Levels) { 366 DiagnosticLevelMask const PM = 367 llvm::StringSwitch<DiagnosticLevelMask>(Level) 368 .Case("note", DiagnosticLevelMask::Note) 369 .Case("remark", DiagnosticLevelMask::Remark) 370 .Case("warning", DiagnosticLevelMask::Warning) 371 .Case("error", DiagnosticLevelMask::Error) 372 .Default(DiagnosticLevelMask::None); 373 if (PM == DiagnosticLevelMask::None) { 374 Success = false; 375 if (Diags) 376 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 377 } 378 M = M | PM; 379 } 380 return Success; 381 } 382 383 static void parseSanitizerKinds(StringRef FlagName, 384 const std::vector<std::string> &Sanitizers, 385 DiagnosticsEngine &Diags, SanitizerSet &S) { 386 for (const auto &Sanitizer : Sanitizers) { 387 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 388 if (K == 0) 389 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 390 else 391 S.set(K, true); 392 } 393 } 394 395 // Set the profile kind for fprofile-instrument. 396 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 397 DiagnosticsEngine &Diags) { 398 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 399 if (A == nullptr) 400 return; 401 StringRef S = A->getValue(); 402 unsigned I = llvm::StringSwitch<unsigned>(S) 403 .Case("none", CodeGenOptions::ProfileNone) 404 .Case("clang", CodeGenOptions::ProfileClangInstr) 405 .Case("llvm", CodeGenOptions::ProfileIRInstr) 406 .Default(~0U); 407 if (I == ~0U) { 408 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 409 << S; 410 return; 411 } 412 CodeGenOptions::ProfileInstrKind Instrumentor = 413 static_cast<CodeGenOptions::ProfileInstrKind>(I); 414 Opts.setProfileInstr(Instrumentor); 415 } 416 417 // Set the profile kind using fprofile-instrument-use-path. 418 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 419 const Twine &ProfileName) { 420 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 421 // In error, return silently and let Clang PGOUse report the error message. 422 if (auto E = ReaderOrErr.takeError()) { 423 llvm::consumeError(std::move(E)); 424 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 425 return; 426 } 427 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 428 std::move(ReaderOrErr.get()); 429 if (PGOReader->isIRLevelProfile()) 430 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 431 else 432 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 433 } 434 435 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 436 DiagnosticsEngine &Diags, 437 const TargetOptions &TargetOpts) { 438 using namespace options; 439 bool Success = true; 440 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 441 442 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 443 // TODO: This could be done in Driver 444 unsigned MaxOptLevel = 3; 445 if (OptimizationLevel > MaxOptLevel) { 446 // If the optimization level is not supported, fall back on the default 447 // optimization 448 Diags.Report(diag::warn_drv_optimization_value) 449 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 450 OptimizationLevel = MaxOptLevel; 451 } 452 Opts.OptimizationLevel = OptimizationLevel; 453 454 // At O0 we want to fully disable inlining outside of cases marked with 455 // 'alwaysinline' that are required for correctness. 456 Opts.setInlining((Opts.OptimizationLevel == 0) 457 ? CodeGenOptions::OnlyAlwaysInlining 458 : CodeGenOptions::NormalInlining); 459 // Explicit inlining flags can disable some or all inlining even at 460 // optimization levels above zero. 461 if (Arg *InlineArg = Args.getLastArg( 462 options::OPT_finline_functions, options::OPT_finline_hint_functions, 463 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 464 if (Opts.OptimizationLevel > 0) { 465 const Option &InlineOpt = InlineArg->getOption(); 466 if (InlineOpt.matches(options::OPT_finline_functions)) 467 Opts.setInlining(CodeGenOptions::NormalInlining); 468 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 469 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 470 else 471 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 472 } 473 } 474 475 Opts.ExperimentalNewPassManager = Args.hasFlag( 476 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 477 /* Default */ false); 478 479 Opts.DebugPassManager = 480 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 481 /* Default */ false); 482 483 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 484 StringRef Name = A->getValue(); 485 if (Name == "Accelerate") 486 Opts.setVecLib(CodeGenOptions::Accelerate); 487 else if (Name == "SVML") 488 Opts.setVecLib(CodeGenOptions::SVML); 489 else if (Name == "none") 490 Opts.setVecLib(CodeGenOptions::NoLibrary); 491 else 492 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 493 } 494 495 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 496 unsigned Val = 497 llvm::StringSwitch<unsigned>(A->getValue()) 498 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 499 .Case("limited", codegenoptions::LimitedDebugInfo) 500 .Case("standalone", codegenoptions::FullDebugInfo) 501 .Default(~0U); 502 if (Val == ~0U) 503 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 504 << A->getValue(); 505 else 506 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 507 } 508 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 509 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 510 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 511 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 512 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 513 .Default(~0U); 514 if (Val == ~0U) 515 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 516 << A->getValue(); 517 else 518 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 519 } 520 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 521 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 522 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 523 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 524 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 525 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 526 Opts.EnableSplitDwarf = Args.hasArg(OPT_enable_split_dwarf); 527 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 528 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 529 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 530 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 531 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 532 533 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 534 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 535 536 if (const Arg *A = 537 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 538 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 539 540 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 541 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 542 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 543 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 544 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 545 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 546 OPT_fuse_register_sized_bitfield_access); 547 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 548 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 549 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 550 Args.hasArg(OPT_new_struct_path_tbaa); 551 Opts.FineGrainedBitfieldAccesses = 552 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 553 OPT_fno_fine_grained_bitfield_accesses, false); 554 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 555 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 556 Opts.NoCommon = Args.hasArg(OPT_fno_common); 557 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 558 Opts.OptimizeSize = getOptimizationLevelSize(Args); 559 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 560 Args.hasArg(OPT_ffreestanding)); 561 if (Opts.SimplifyLibCalls) 562 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 563 Opts.UnrollLoops = 564 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 565 (Opts.OptimizationLevel > 1)); 566 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 567 568 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 569 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 570 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 571 Opts.DebugInfoForProfiling = Args.hasFlag( 572 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 573 Opts.GnuPubnames = Args.hasArg(OPT_ggnu_pubnames); 574 575 setPGOInstrumentor(Opts, Args, Diags); 576 Opts.InstrProfileOutput = 577 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 578 Opts.ProfileInstrumentUsePath = 579 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 580 if (!Opts.ProfileInstrumentUsePath.empty()) 581 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 582 583 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 584 Opts.setClangABICompat(CodeGenOptions::ClangABI::Latest); 585 586 StringRef Ver = A->getValue(); 587 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 588 unsigned Major, Minor = 0; 589 590 // Check the version number is valid: either 3.x (0 <= x <= 9) or 591 // y or y.0 (4 <= y <= current version). 592 if (!VerParts.first.startswith("0") && 593 !VerParts.first.getAsInteger(10, Major) && 594 3 <= Major && Major <= CLANG_VERSION_MAJOR && 595 (Major == 3 ? VerParts.second.size() == 1 && 596 !VerParts.second.getAsInteger(10, Minor) 597 : VerParts.first.size() == Ver.size() || 598 VerParts.second == "0")) { 599 // Got a valid version number. 600 if (Major == 3 && Minor <= 8) 601 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver3_8); 602 else if (Major <= 4) 603 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver4); 604 } else if (Ver != "latest") { 605 Diags.Report(diag::err_drv_invalid_value) 606 << A->getAsString(Args) << A->getValue(); 607 } 608 } 609 610 Opts.CoverageMapping = 611 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 612 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 613 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 614 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 615 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 616 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 617 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 618 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 619 Opts.CodeModel = getCodeModel(Args, Diags); 620 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 621 Opts.DisableFPElim = 622 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 623 Opts.DisableFree = Args.hasArg(OPT_disable_free); 624 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 625 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 626 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 627 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 628 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 629 Args.hasArg(OPT_cl_fast_relaxed_math); 630 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 631 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 632 Args.hasArg(OPT_cl_finite_math_only) || 633 Args.hasArg(OPT_cl_fast_relaxed_math)); 634 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 635 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 636 Args.hasArg(OPT_cl_finite_math_only) || 637 Args.hasArg(OPT_cl_fast_relaxed_math)); 638 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 639 Args.hasArg(OPT_cl_no_signed_zeros) || 640 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 641 Args.hasArg(OPT_cl_fast_relaxed_math)); 642 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 643 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 644 Opts.CorrectlyRoundedDivSqrt = 645 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 646 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 647 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 648 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 649 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 650 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 651 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 652 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 653 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 654 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 655 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 656 Opts.IncrementalLinkerCompatible = 657 Args.hasArg(OPT_mincremental_linker_compatible); 658 Opts.PIECopyRelocations = 659 Args.hasArg(OPT_mpie_copy_relocations); 660 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 661 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 662 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 663 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 664 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 665 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 666 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 667 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 668 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 669 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 670 Args.hasArg(OPT_cl_fast_relaxed_math); 671 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 672 Opts.RelocationModel = getRelocModel(Args, Diags); 673 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 674 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 675 Diags.Report(diag::err_drv_invalid_value) 676 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 677 << Opts.ThreadModel; 678 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 679 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 680 681 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 682 OPT_fno_function_sections, false); 683 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 684 OPT_fno_data_sections, false); 685 Opts.StackSizeSection = 686 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 687 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 688 OPT_fno_unique_section_names, true); 689 690 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 691 692 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 693 694 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 695 696 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 697 Opts.EmitSummaryIndex = false; 698 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 699 StringRef S = A->getValue(); 700 if (S == "thin") 701 Opts.EmitSummaryIndex = true; 702 else if (S != "full") 703 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 704 } 705 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 706 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 707 if (IK.getLanguage() != InputKind::LLVM_IR) 708 Diags.Report(diag::err_drv_argument_only_allowed_with) 709 << A->getAsString(Args) << "-x ir"; 710 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 711 } 712 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 713 714 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 715 716 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 717 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 718 719 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 720 721 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 722 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 723 724 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 725 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 726 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 727 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 728 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 729 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 730 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 731 Opts.CoverageNoFunctionNamesInData = 732 Args.hasArg(OPT_coverage_no_function_names_in_data); 733 Opts.CoverageExitBlockBeforeBody = 734 Args.hasArg(OPT_coverage_exit_block_before_body); 735 if (Args.hasArg(OPT_coverage_version_EQ)) { 736 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 737 if (CoverageVersion.size() != 4) { 738 Diags.Report(diag::err_drv_invalid_value) 739 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 740 << CoverageVersion; 741 } else { 742 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 743 } 744 } 745 } 746 // Handle -fembed-bitcode option. 747 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 748 StringRef Name = A->getValue(); 749 unsigned Model = llvm::StringSwitch<unsigned>(Name) 750 .Case("off", CodeGenOptions::Embed_Off) 751 .Case("all", CodeGenOptions::Embed_All) 752 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 753 .Case("marker", CodeGenOptions::Embed_Marker) 754 .Default(~0U); 755 if (Model == ~0U) { 756 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 757 Success = false; 758 } else 759 Opts.setEmbedBitcode( 760 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 761 } 762 // FIXME: For backend options that are not yet recorded as function 763 // attributes in the IR, keep track of them so we can embed them in a 764 // separate data section and use them when building the bitcode. 765 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 766 for (const auto &A : Args) { 767 // Do not encode output and input. 768 if (A->getOption().getID() == options::OPT_o || 769 A->getOption().getID() == options::OPT_INPUT || 770 A->getOption().getID() == options::OPT_x || 771 A->getOption().getID() == options::OPT_fembed_bitcode || 772 (A->getOption().getGroup().isValid() && 773 A->getOption().getGroup().getID() == options::OPT_W_Group)) 774 continue; 775 ArgStringList ASL; 776 A->render(Args, ASL); 777 for (const auto &arg : ASL) { 778 StringRef ArgStr(arg); 779 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 780 // using \00 to seperate each commandline options. 781 Opts.CmdArgs.push_back('\0'); 782 } 783 } 784 } 785 786 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 787 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 788 Opts.InstrumentFunctionsAfterInlining = 789 Args.hasArg(OPT_finstrument_functions_after_inlining); 790 Opts.InstrumentFunctionEntryBare = 791 Args.hasArg(OPT_finstrument_function_entry_bare); 792 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 793 Opts.XRayAlwaysEmitCustomEvents = 794 Args.hasArg(OPT_fxray_always_emit_customevents); 795 Opts.XRayInstructionThreshold = 796 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 797 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 798 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 799 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 800 801 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 802 StringRef Name = A->getValue(); 803 if (Name == "full") { 804 Opts.CFProtectionReturn = 1; 805 Opts.CFProtectionBranch = 1; 806 } else if (Name == "return") 807 Opts.CFProtectionReturn = 1; 808 else if (Name == "branch") 809 Opts.CFProtectionBranch = 1; 810 else if (Name != "none") { 811 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 812 Success = false; 813 } 814 } 815 816 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 817 OPT_compress_debug_sections_EQ)) { 818 if (A->getOption().getID() == OPT_compress_debug_sections) { 819 // TODO: be more clever about the compression type auto-detection 820 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 821 } else { 822 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 823 .Case("none", llvm::DebugCompressionType::None) 824 .Case("zlib", llvm::DebugCompressionType::Z) 825 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 826 .Default(llvm::DebugCompressionType::None); 827 Opts.setCompressDebugSections(DCT); 828 } 829 } 830 831 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 832 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 833 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 834 CodeGenOptions::BitcodeFileToLink F; 835 F.Filename = A->getValue(); 836 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) { 837 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 838 // When linking CUDA bitcode, propagate function attributes so that 839 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 840 F.PropagateAttrs = true; 841 F.Internalize = true; 842 } 843 Opts.LinkBitcodeFiles.push_back(F); 844 } 845 Opts.SanitizeCoverageType = 846 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 847 Opts.SanitizeCoverageIndirectCalls = 848 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 849 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 850 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 851 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 852 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 853 Opts.SanitizeCoverage8bitCounters = 854 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 855 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 856 Opts.SanitizeCoverageTracePCGuard = 857 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 858 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 859 Opts.SanitizeCoverageInline8bitCounters = 860 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 861 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 862 Opts.SanitizeCoverageStackDepth = 863 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 864 Opts.SanitizeMemoryTrackOrigins = 865 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 866 Opts.SanitizeMemoryUseAfterDtor = 867 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 868 OPT_fno_sanitize_memory_use_after_dtor, 869 false); 870 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 871 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 872 Opts.SanitizeCfiICallGeneralizePointers = 873 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 874 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 875 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 876 OPT_fno_sanitize_address_use_after_scope)) { 877 Opts.SanitizeAddressUseAfterScope = 878 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 879 } 880 Opts.SanitizeAddressGlobalsDeadStripping = 881 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 882 Opts.SSPBufferSize = 883 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 884 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 885 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 886 StringRef Val = A->getValue(); 887 unsigned StackAlignment = Opts.StackAlignment; 888 Val.getAsInteger(10, StackAlignment); 889 Opts.StackAlignment = StackAlignment; 890 } 891 892 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 893 StringRef Val = A->getValue(); 894 unsigned StackProbeSize = Opts.StackProbeSize; 895 Val.getAsInteger(0, StackProbeSize); 896 Opts.StackProbeSize = StackProbeSize; 897 } 898 899 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 900 StringRef Name = A->getValue(); 901 unsigned Method = llvm::StringSwitch<unsigned>(Name) 902 .Case("legacy", CodeGenOptions::Legacy) 903 .Case("non-legacy", CodeGenOptions::NonLegacy) 904 .Case("mixed", CodeGenOptions::Mixed) 905 .Default(~0U); 906 if (Method == ~0U) { 907 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 908 Success = false; 909 } else { 910 Opts.setObjCDispatchMethod( 911 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 912 } 913 } 914 915 Opts.EmulatedTLS = 916 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 917 918 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 919 StringRef Name = A->getValue(); 920 unsigned Model = llvm::StringSwitch<unsigned>(Name) 921 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 922 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 923 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 924 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 925 .Default(~0U); 926 if (Model == ~0U) { 927 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 928 Success = false; 929 } else { 930 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 931 } 932 } 933 934 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 935 StringRef Val = A->getValue(); 936 if (Val == "ieee") 937 Opts.FPDenormalMode = "ieee"; 938 else if (Val == "preserve-sign") 939 Opts.FPDenormalMode = "preserve-sign"; 940 else if (Val == "positive-zero") 941 Opts.FPDenormalMode = "positive-zero"; 942 else 943 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 944 } 945 946 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 947 if (A->getOption().matches(OPT_fpcc_struct_return)) { 948 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 949 } else { 950 assert(A->getOption().matches(OPT_freg_struct_return)); 951 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 952 } 953 } 954 955 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 956 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 957 bool NeedLocTracking = false; 958 959 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 960 if (!Opts.OptRecordFile.empty()) 961 NeedLocTracking = true; 962 963 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 964 Opts.OptimizationRemarkPattern = 965 GenerateOptimizationRemarkRegex(Diags, Args, A); 966 NeedLocTracking = true; 967 } 968 969 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 970 Opts.OptimizationRemarkMissedPattern = 971 GenerateOptimizationRemarkRegex(Diags, Args, A); 972 NeedLocTracking = true; 973 } 974 975 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 976 Opts.OptimizationRemarkAnalysisPattern = 977 GenerateOptimizationRemarkRegex(Diags, Args, A); 978 NeedLocTracking = true; 979 } 980 981 Opts.DiagnosticsWithHotness = 982 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 983 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 984 bool UsingProfile = UsingSampleProfile || 985 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 986 987 if (Opts.DiagnosticsWithHotness && !UsingProfile) 988 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 989 << "-fdiagnostics-show-hotness"; 990 991 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 992 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 993 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 994 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 995 << "-fdiagnostics-hotness-threshold="; 996 997 // If the user requested to use a sample profile for PGO, then the 998 // backend will need to track source location information so the profile 999 // can be incorporated into the IR. 1000 if (UsingSampleProfile) 1001 NeedLocTracking = true; 1002 1003 // If the user requested a flag that requires source locations available in 1004 // the backend, make sure that the backend tracks source location information. 1005 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1006 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1007 1008 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1009 1010 // Parse -fsanitize-recover= arguments. 1011 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1012 parseSanitizerKinds("-fsanitize-recover=", 1013 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1014 Opts.SanitizeRecover); 1015 parseSanitizerKinds("-fsanitize-trap=", 1016 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1017 Opts.SanitizeTrap); 1018 1019 Opts.CudaGpuBinaryFileNames = 1020 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 1021 1022 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1023 1024 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1025 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1026 1027 return Success; 1028 } 1029 1030 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1031 ArgList &Args) { 1032 using namespace options; 1033 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1034 Opts.Targets = Args.getAllArgValues(OPT_MT); 1035 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1036 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1037 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1038 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1039 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1040 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1041 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 1042 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1043 Opts.ModuleDependencyOutputDir = 1044 Args.getLastArgValue(OPT_module_dependency_dir); 1045 if (Args.hasArg(OPT_MV)) 1046 Opts.OutputFormat = DependencyOutputFormat::NMake; 1047 // Add sanitizer blacklists as extra dependencies. 1048 // They won't be discovered by the regular preprocessor, so 1049 // we let make / ninja to know about this implicit dependency. 1050 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1051 // Only the -fmodule-file=<file> form. 1052 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1053 StringRef Val = A->getValue(); 1054 if (Val.find('=') == StringRef::npos) 1055 Opts.ExtraDeps.push_back(Val); 1056 } 1057 } 1058 1059 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1060 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1061 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1062 // Support both clang's -f[no-]color-diagnostics and gcc's 1063 // -f[no-]diagnostics-colors[=never|always|auto]. 1064 enum { 1065 Colors_On, 1066 Colors_Off, 1067 Colors_Auto 1068 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1069 for (Arg *A : Args) { 1070 const Option &O = A->getOption(); 1071 if (O.matches(options::OPT_fcolor_diagnostics) || 1072 O.matches(options::OPT_fdiagnostics_color)) { 1073 ShowColors = Colors_On; 1074 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1075 O.matches(options::OPT_fno_diagnostics_color)) { 1076 ShowColors = Colors_Off; 1077 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1078 StringRef Value(A->getValue()); 1079 if (Value == "always") 1080 ShowColors = Colors_On; 1081 else if (Value == "never") 1082 ShowColors = Colors_Off; 1083 else if (Value == "auto") 1084 ShowColors = Colors_Auto; 1085 } 1086 } 1087 return ShowColors == Colors_On || 1088 (ShowColors == Colors_Auto && 1089 llvm::sys::Process::StandardErrHasColors()); 1090 } 1091 1092 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1093 DiagnosticsEngine *Diags) { 1094 bool Success = true; 1095 for (const auto &Prefix : VerifyPrefixes) { 1096 // Every prefix must start with a letter and contain only alphanumeric 1097 // characters, hyphens, and underscores. 1098 auto BadChar = std::find_if(Prefix.begin(), Prefix.end(), 1099 [](char C){return !isAlphanumeric(C) 1100 && C != '-' && C != '_';}); 1101 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1102 Success = false; 1103 if (Diags) { 1104 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1105 Diags->Report(diag::note_drv_verify_prefix_spelling); 1106 } 1107 } 1108 } 1109 return Success; 1110 } 1111 1112 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1113 DiagnosticsEngine *Diags, 1114 bool DefaultDiagColor, bool DefaultShowOpt) { 1115 using namespace options; 1116 bool Success = true; 1117 1118 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1119 if (Arg *A = 1120 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1121 Opts.DiagnosticSerializationFile = A->getValue(); 1122 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1123 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1124 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1125 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1126 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1127 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1128 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1129 OPT_fno_show_column, 1130 /*Default=*/true); 1131 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1132 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1133 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1134 Opts.ShowOptionNames = 1135 Args.hasFlag(OPT_fdiagnostics_show_option, 1136 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1137 1138 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1139 1140 // Default behavior is to not to show note include stacks. 1141 Opts.ShowNoteIncludeStack = false; 1142 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1143 OPT_fno_diagnostics_show_note_include_stack)) 1144 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1145 Opts.ShowNoteIncludeStack = true; 1146 1147 StringRef ShowOverloads = 1148 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1149 if (ShowOverloads == "best") 1150 Opts.setShowOverloads(Ovl_Best); 1151 else if (ShowOverloads == "all") 1152 Opts.setShowOverloads(Ovl_All); 1153 else { 1154 Success = false; 1155 if (Diags) 1156 Diags->Report(diag::err_drv_invalid_value) 1157 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1158 << ShowOverloads; 1159 } 1160 1161 StringRef ShowCategory = 1162 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1163 if (ShowCategory == "none") 1164 Opts.ShowCategories = 0; 1165 else if (ShowCategory == "id") 1166 Opts.ShowCategories = 1; 1167 else if (ShowCategory == "name") 1168 Opts.ShowCategories = 2; 1169 else { 1170 Success = false; 1171 if (Diags) 1172 Diags->Report(diag::err_drv_invalid_value) 1173 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1174 << ShowCategory; 1175 } 1176 1177 StringRef Format = 1178 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1179 if (Format == "clang") 1180 Opts.setFormat(DiagnosticOptions::Clang); 1181 else if (Format == "msvc") 1182 Opts.setFormat(DiagnosticOptions::MSVC); 1183 else if (Format == "msvc-fallback") { 1184 Opts.setFormat(DiagnosticOptions::MSVC); 1185 Opts.CLFallbackMode = true; 1186 } else if (Format == "vi") 1187 Opts.setFormat(DiagnosticOptions::Vi); 1188 else { 1189 Success = false; 1190 if (Diags) 1191 Diags->Report(diag::err_drv_invalid_value) 1192 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1193 << Format; 1194 } 1195 1196 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1197 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1198 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1199 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1200 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1201 if (Args.hasArg(OPT_verify)) 1202 Opts.VerifyPrefixes.push_back("expected"); 1203 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1204 // then sort it to prepare for fast lookup using std::binary_search. 1205 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1206 Opts.VerifyDiagnostics = false; 1207 Success = false; 1208 } 1209 else 1210 std::sort(Opts.VerifyPrefixes.begin(), Opts.VerifyPrefixes.end()); 1211 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1212 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1213 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1214 Diags, DiagMask); 1215 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1216 DiagMask = DiagnosticLevelMask::All; 1217 Opts.setVerifyIgnoreUnexpected(DiagMask); 1218 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1219 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1220 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1221 Opts.MacroBacktraceLimit = 1222 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1223 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1224 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1225 Args, OPT_ftemplate_backtrace_limit, 1226 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1227 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1228 Args, OPT_fconstexpr_backtrace_limit, 1229 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1230 Opts.SpellCheckingLimit = getLastArgIntValue( 1231 Args, OPT_fspell_checking_limit, 1232 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1233 Opts.SnippetLineLimit = getLastArgIntValue( 1234 Args, OPT_fcaret_diagnostics_max_lines, 1235 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1236 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1237 DiagnosticOptions::DefaultTabStop, Diags); 1238 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1239 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1240 if (Diags) 1241 Diags->Report(diag::warn_ignoring_ftabstop_value) 1242 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1243 } 1244 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1245 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1246 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1247 1248 return Success; 1249 } 1250 1251 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1252 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1253 } 1254 1255 /// Parse the argument to the -ftest-module-file-extension 1256 /// command-line argument. 1257 /// 1258 /// \returns true on error, false on success. 1259 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1260 std::string &BlockName, 1261 unsigned &MajorVersion, 1262 unsigned &MinorVersion, 1263 bool &Hashed, 1264 std::string &UserInfo) { 1265 SmallVector<StringRef, 5> Args; 1266 Arg.split(Args, ':', 5); 1267 if (Args.size() < 5) 1268 return true; 1269 1270 BlockName = Args[0]; 1271 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1272 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1273 if (Args[3].getAsInteger(2, Hashed)) return true; 1274 if (Args.size() > 4) 1275 UserInfo = Args[4]; 1276 return false; 1277 } 1278 1279 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1280 DiagnosticsEngine &Diags, 1281 bool &IsHeaderFile) { 1282 using namespace options; 1283 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1284 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1285 switch (A->getOption().getID()) { 1286 default: 1287 llvm_unreachable("Invalid option in group!"); 1288 case OPT_ast_list: 1289 Opts.ProgramAction = frontend::ASTDeclList; break; 1290 case OPT_ast_dump: 1291 case OPT_ast_dump_all: 1292 case OPT_ast_dump_lookups: 1293 Opts.ProgramAction = frontend::ASTDump; break; 1294 case OPT_ast_print: 1295 Opts.ProgramAction = frontend::ASTPrint; break; 1296 case OPT_ast_view: 1297 Opts.ProgramAction = frontend::ASTView; break; 1298 case OPT_dump_raw_tokens: 1299 Opts.ProgramAction = frontend::DumpRawTokens; break; 1300 case OPT_dump_tokens: 1301 Opts.ProgramAction = frontend::DumpTokens; break; 1302 case OPT_S: 1303 Opts.ProgramAction = frontend::EmitAssembly; break; 1304 case OPT_emit_llvm_bc: 1305 Opts.ProgramAction = frontend::EmitBC; break; 1306 case OPT_emit_html: 1307 Opts.ProgramAction = frontend::EmitHTML; break; 1308 case OPT_emit_llvm: 1309 Opts.ProgramAction = frontend::EmitLLVM; break; 1310 case OPT_emit_llvm_only: 1311 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1312 case OPT_emit_codegen_only: 1313 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1314 case OPT_emit_obj: 1315 Opts.ProgramAction = frontend::EmitObj; break; 1316 case OPT_fixit_EQ: 1317 Opts.FixItSuffix = A->getValue(); 1318 // fall-through! 1319 case OPT_fixit: 1320 Opts.ProgramAction = frontend::FixIt; break; 1321 case OPT_emit_module: 1322 Opts.ProgramAction = frontend::GenerateModule; break; 1323 case OPT_emit_module_interface: 1324 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1325 case OPT_emit_pch: 1326 Opts.ProgramAction = frontend::GeneratePCH; break; 1327 case OPT_emit_pth: 1328 Opts.ProgramAction = frontend::GeneratePTH; break; 1329 case OPT_init_only: 1330 Opts.ProgramAction = frontend::InitOnly; break; 1331 case OPT_fsyntax_only: 1332 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1333 case OPT_module_file_info: 1334 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1335 case OPT_verify_pch: 1336 Opts.ProgramAction = frontend::VerifyPCH; break; 1337 case OPT_print_decl_contexts: 1338 Opts.ProgramAction = frontend::PrintDeclContext; break; 1339 case OPT_print_preamble: 1340 Opts.ProgramAction = frontend::PrintPreamble; break; 1341 case OPT_E: 1342 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1343 case OPT_rewrite_macros: 1344 Opts.ProgramAction = frontend::RewriteMacros; break; 1345 case OPT_rewrite_objc: 1346 Opts.ProgramAction = frontend::RewriteObjC; break; 1347 case OPT_rewrite_test: 1348 Opts.ProgramAction = frontend::RewriteTest; break; 1349 case OPT_analyze: 1350 Opts.ProgramAction = frontend::RunAnalysis; break; 1351 case OPT_migrate: 1352 Opts.ProgramAction = frontend::MigrateSource; break; 1353 case OPT_Eonly: 1354 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1355 } 1356 } 1357 1358 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1359 Opts.Plugins.emplace_back(A->getValue(0)); 1360 Opts.ProgramAction = frontend::PluginAction; 1361 Opts.ActionName = A->getValue(); 1362 } 1363 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1364 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1365 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1366 1367 for (const std::string &Arg : 1368 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1369 std::string BlockName; 1370 unsigned MajorVersion; 1371 unsigned MinorVersion; 1372 bool Hashed; 1373 std::string UserInfo; 1374 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1375 MinorVersion, Hashed, UserInfo)) { 1376 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1377 1378 continue; 1379 } 1380 1381 // Add the testing module file extension. 1382 Opts.ModuleFileExtensions.push_back( 1383 std::make_shared<TestModuleFileExtension>( 1384 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1385 } 1386 1387 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1388 Opts.CodeCompletionAt = 1389 ParsedSourceLocation::FromString(A->getValue()); 1390 if (Opts.CodeCompletionAt.FileName.empty()) 1391 Diags.Report(diag::err_drv_invalid_value) 1392 << A->getAsString(Args) << A->getValue(); 1393 } 1394 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1395 1396 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1397 Opts.Plugins = Args.getAllArgValues(OPT_load); 1398 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1399 Opts.ShowHelp = Args.hasArg(OPT_help); 1400 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1401 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1402 Opts.ShowVersion = Args.hasArg(OPT_version); 1403 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1404 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1405 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1406 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1407 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1408 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1409 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1410 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1411 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1412 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1413 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1414 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1415 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1416 // Only the -fmodule-file=<file> form. 1417 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1418 StringRef Val = A->getValue(); 1419 if (Val.find('=') == StringRef::npos) 1420 Opts.ModuleFiles.push_back(Val); 1421 } 1422 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1423 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1424 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1425 1426 Opts.CodeCompleteOpts.IncludeMacros 1427 = Args.hasArg(OPT_code_completion_macros); 1428 Opts.CodeCompleteOpts.IncludeCodePatterns 1429 = Args.hasArg(OPT_code_completion_patterns); 1430 Opts.CodeCompleteOpts.IncludeGlobals 1431 = !Args.hasArg(OPT_no_code_completion_globals); 1432 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1433 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1434 Opts.CodeCompleteOpts.IncludeBriefComments 1435 = Args.hasArg(OPT_code_completion_brief_comments); 1436 1437 Opts.OverrideRecordLayoutsFile 1438 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1439 Opts.AuxTriple = 1440 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1441 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1442 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1443 1444 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1445 OPT_arcmt_modify, 1446 OPT_arcmt_migrate)) { 1447 switch (A->getOption().getID()) { 1448 default: 1449 llvm_unreachable("missed a case"); 1450 case OPT_arcmt_check: 1451 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1452 break; 1453 case OPT_arcmt_modify: 1454 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1455 break; 1456 case OPT_arcmt_migrate: 1457 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1458 break; 1459 } 1460 } 1461 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1462 Opts.ARCMTMigrateReportOut 1463 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1464 Opts.ARCMTMigrateEmitARCErrors 1465 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1466 1467 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1468 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1469 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1470 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1471 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1472 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1473 if (Args.hasArg(OPT_objcmt_migrate_property)) 1474 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1475 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1476 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1477 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1478 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1479 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1480 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1481 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1482 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1483 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1484 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1485 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1486 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1487 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1488 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1489 if (Args.hasArg(OPT_objcmt_atomic_property)) 1490 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1491 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1492 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1493 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1494 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1495 if (Args.hasArg(OPT_objcmt_migrate_all)) 1496 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1497 1498 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1499 1500 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1501 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1502 Diags.Report(diag::err_drv_argument_not_allowed_with) 1503 << "ARC migration" << "ObjC migration"; 1504 } 1505 1506 InputKind DashX(InputKind::Unknown); 1507 if (const Arg *A = Args.getLastArg(OPT_x)) { 1508 StringRef XValue = A->getValue(); 1509 1510 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1511 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1512 bool Preprocessed = XValue.consume_back("-cpp-output"); 1513 bool ModuleMap = XValue.consume_back("-module-map"); 1514 IsHeaderFile = 1515 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1516 1517 // Principal languages. 1518 DashX = llvm::StringSwitch<InputKind>(XValue) 1519 .Case("c", InputKind::C) 1520 .Case("cl", InputKind::OpenCL) 1521 .Case("cuda", InputKind::CUDA) 1522 .Case("c++", InputKind::CXX) 1523 .Case("objective-c", InputKind::ObjC) 1524 .Case("objective-c++", InputKind::ObjCXX) 1525 .Case("renderscript", InputKind::RenderScript) 1526 .Default(InputKind::Unknown); 1527 1528 // "objc[++]-cpp-output" is an acceptable synonym for 1529 // "objective-c[++]-cpp-output". 1530 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1531 DashX = llvm::StringSwitch<InputKind>(XValue) 1532 .Case("objc", InputKind::ObjC) 1533 .Case("objc++", InputKind::ObjCXX) 1534 .Default(InputKind::Unknown); 1535 1536 // Some special cases cannot be combined with suffixes. 1537 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1538 DashX = llvm::StringSwitch<InputKind>(XValue) 1539 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1540 .Case("assembler-with-cpp", InputKind::Asm) 1541 .Cases("ast", "pcm", 1542 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1543 .Case("ir", InputKind::LLVM_IR) 1544 .Default(InputKind::Unknown); 1545 1546 if (DashX.isUnknown()) 1547 Diags.Report(diag::err_drv_invalid_value) 1548 << A->getAsString(Args) << A->getValue(); 1549 1550 if (Preprocessed) 1551 DashX = DashX.getPreprocessed(); 1552 if (ModuleMap) 1553 DashX = DashX.withFormat(InputKind::ModuleMap); 1554 } 1555 1556 // '-' is the default input if none is given. 1557 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1558 Opts.Inputs.clear(); 1559 if (Inputs.empty()) 1560 Inputs.push_back("-"); 1561 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1562 InputKind IK = DashX; 1563 if (IK.isUnknown()) { 1564 IK = FrontendOptions::getInputKindForExtension( 1565 StringRef(Inputs[i]).rsplit('.').second); 1566 // FIXME: Warn on this? 1567 if (IK.isUnknown()) 1568 IK = InputKind::C; 1569 // FIXME: Remove this hack. 1570 if (i == 0) 1571 DashX = IK; 1572 } 1573 1574 // The -emit-module action implicitly takes a module map. 1575 if (Opts.ProgramAction == frontend::GenerateModule && 1576 IK.getFormat() == InputKind::Source) 1577 IK = IK.withFormat(InputKind::ModuleMap); 1578 1579 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1580 } 1581 1582 return DashX; 1583 } 1584 1585 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1586 void *MainAddr) { 1587 std::string ClangExecutable = 1588 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1589 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1590 1591 // Compute the path to the resource directory. 1592 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1593 SmallString<128> P(Dir); 1594 if (ClangResourceDir != "") 1595 llvm::sys::path::append(P, ClangResourceDir); 1596 else 1597 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1598 "clang", CLANG_VERSION_STRING); 1599 1600 return P.str(); 1601 } 1602 1603 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1604 const std::string &WorkingDir) { 1605 using namespace options; 1606 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1607 Opts.Verbose = Args.hasArg(OPT_v); 1608 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1609 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1610 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1611 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1612 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1613 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1614 1615 // Canonicalize -fmodules-cache-path before storing it. 1616 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1617 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1618 if (WorkingDir.empty()) 1619 llvm::sys::fs::make_absolute(P); 1620 else 1621 llvm::sys::fs::make_absolute(WorkingDir, P); 1622 } 1623 llvm::sys::path::remove_dots(P); 1624 Opts.ModuleCachePath = P.str(); 1625 1626 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1627 // Only the -fmodule-file=<name>=<file> form. 1628 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1629 StringRef Val = A->getValue(); 1630 if (Val.find('=') != StringRef::npos) 1631 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1632 } 1633 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1634 Opts.AddPrebuiltModulePath(A->getValue()); 1635 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1636 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1637 Opts.ModulesValidateDiagnosticOptions = 1638 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1639 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1640 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1641 Opts.ModuleCachePruneInterval = 1642 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1643 Opts.ModuleCachePruneAfter = 1644 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1645 Opts.ModulesValidateOncePerBuildSession = 1646 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1647 Opts.BuildSessionTimestamp = 1648 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1649 Opts.ModulesValidateSystemHeaders = 1650 Args.hasArg(OPT_fmodules_validate_system_headers); 1651 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1652 Opts.ModuleFormat = A->getValue(); 1653 1654 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1655 StringRef MacroDef = A->getValue(); 1656 Opts.ModulesIgnoreMacros.insert( 1657 llvm::CachedHashString(MacroDef.split('=').first)); 1658 } 1659 1660 // Add -I..., -F..., and -index-header-map options in order. 1661 bool IsIndexHeaderMap = false; 1662 bool IsSysrootSpecified = 1663 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1664 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1665 if (A->getOption().matches(OPT_index_header_map)) { 1666 // -index-header-map applies to the next -I or -F. 1667 IsIndexHeaderMap = true; 1668 continue; 1669 } 1670 1671 frontend::IncludeDirGroup Group = 1672 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1673 1674 bool IsFramework = A->getOption().matches(OPT_F); 1675 std::string Path = A->getValue(); 1676 1677 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1678 SmallString<32> Buffer; 1679 llvm::sys::path::append(Buffer, Opts.Sysroot, 1680 llvm::StringRef(A->getValue()).substr(1)); 1681 Path = Buffer.str(); 1682 } 1683 1684 Opts.AddPath(Path, Group, IsFramework, 1685 /*IgnoreSysroot*/ true); 1686 IsIndexHeaderMap = false; 1687 } 1688 1689 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1690 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1691 for (const Arg *A : 1692 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1693 if (A->getOption().matches(OPT_iprefix)) 1694 Prefix = A->getValue(); 1695 else if (A->getOption().matches(OPT_iwithprefix)) 1696 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1697 else 1698 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1699 } 1700 1701 for (const Arg *A : Args.filtered(OPT_idirafter)) 1702 Opts.AddPath(A->getValue(), frontend::After, false, true); 1703 for (const Arg *A : Args.filtered(OPT_iquote)) 1704 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1705 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1706 Opts.AddPath(A->getValue(), frontend::System, false, 1707 !A->getOption().matches(OPT_iwithsysroot)); 1708 for (const Arg *A : Args.filtered(OPT_iframework)) 1709 Opts.AddPath(A->getValue(), frontend::System, true, true); 1710 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot)) 1711 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1712 /*IgnoreSysRoot=*/false); 1713 1714 // Add the paths for the various language specific isystem flags. 1715 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1716 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1717 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1718 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1719 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1720 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1721 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1722 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1723 1724 // Add the internal paths from a driver that detects standard include paths. 1725 for (const Arg *A : 1726 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1727 frontend::IncludeDirGroup Group = frontend::System; 1728 if (A->getOption().matches(OPT_internal_externc_isystem)) 1729 Group = frontend::ExternCSystem; 1730 Opts.AddPath(A->getValue(), Group, false, true); 1731 } 1732 1733 // Add the path prefixes which are implicitly treated as being system headers. 1734 for (const Arg *A : 1735 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1736 Opts.AddSystemHeaderPrefix( 1737 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1738 1739 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1740 Opts.AddVFSOverlayFile(A->getValue()); 1741 } 1742 1743 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1744 const llvm::Triple &T, 1745 PreprocessorOptions &PPOpts, 1746 LangStandard::Kind LangStd) { 1747 // Set some properties which depend solely on the input kind; it would be nice 1748 // to move these to the language standard, and have the driver resolve the 1749 // input kind + language standard. 1750 // 1751 // FIXME: Perhaps a better model would be for a single source file to have 1752 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 1753 // simultaneously active? 1754 if (IK.getLanguage() == InputKind::Asm) { 1755 Opts.AsmPreprocessor = 1; 1756 } else if (IK.isObjectiveC()) { 1757 Opts.ObjC1 = Opts.ObjC2 = 1; 1758 } 1759 1760 if (LangStd == LangStandard::lang_unspecified) { 1761 // Based on the base language, pick one. 1762 switch (IK.getLanguage()) { 1763 case InputKind::Unknown: 1764 case InputKind::LLVM_IR: 1765 llvm_unreachable("Invalid input kind!"); 1766 case InputKind::OpenCL: 1767 LangStd = LangStandard::lang_opencl10; 1768 break; 1769 case InputKind::CUDA: 1770 LangStd = LangStandard::lang_cuda; 1771 break; 1772 case InputKind::Asm: 1773 case InputKind::C: 1774 // The PS4 uses C99 as the default C standard. 1775 if (T.isPS4()) 1776 LangStd = LangStandard::lang_gnu99; 1777 else 1778 LangStd = LangStandard::lang_gnu11; 1779 break; 1780 case InputKind::ObjC: 1781 LangStd = LangStandard::lang_gnu11; 1782 break; 1783 case InputKind::CXX: 1784 case InputKind::ObjCXX: 1785 LangStd = LangStandard::lang_gnucxx14; 1786 break; 1787 case InputKind::RenderScript: 1788 LangStd = LangStandard::lang_c99; 1789 break; 1790 } 1791 } 1792 1793 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1794 Opts.LineComment = Std.hasLineComments(); 1795 Opts.C99 = Std.isC99(); 1796 Opts.C11 = Std.isC11(); 1797 Opts.C17 = Std.isC17(); 1798 Opts.CPlusPlus = Std.isCPlusPlus(); 1799 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1800 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1801 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 1802 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 1803 Opts.Digraphs = Std.hasDigraphs(); 1804 Opts.GNUMode = Std.isGNUMode(); 1805 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 1806 Opts.HexFloats = Std.hasHexFloats(); 1807 Opts.ImplicitInt = Std.hasImplicitInt(); 1808 1809 // Set OpenCL Version. 1810 Opts.OpenCL = Std.isOpenCL(); 1811 if (LangStd == LangStandard::lang_opencl10) 1812 Opts.OpenCLVersion = 100; 1813 else if (LangStd == LangStandard::lang_opencl11) 1814 Opts.OpenCLVersion = 110; 1815 else if (LangStd == LangStandard::lang_opencl12) 1816 Opts.OpenCLVersion = 120; 1817 else if (LangStd == LangStandard::lang_opencl20) 1818 Opts.OpenCLVersion = 200; 1819 1820 // OpenCL has some additional defaults. 1821 if (Opts.OpenCL) { 1822 Opts.AltiVec = 0; 1823 Opts.ZVector = 0; 1824 Opts.LaxVectorConversions = 0; 1825 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 1826 Opts.NativeHalfType = 1; 1827 Opts.NativeHalfArgsAndReturns = 1; 1828 // Include default header file for OpenCL. 1829 if (Opts.IncludeDefaultHeader) { 1830 PPOpts.Includes.push_back("opencl-c.h"); 1831 } 1832 } 1833 1834 Opts.CUDA = IK.getLanguage() == InputKind::CUDA; 1835 if (Opts.CUDA) 1836 // Set default FP_CONTRACT to FAST. 1837 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 1838 1839 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 1840 if (Opts.RenderScript) { 1841 Opts.NativeHalfType = 1; 1842 Opts.NativeHalfArgsAndReturns = 1; 1843 } 1844 1845 // OpenCL and C++ both have bool, true, false keywords. 1846 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1847 1848 // OpenCL has half keyword 1849 Opts.Half = Opts.OpenCL; 1850 1851 // C++ has wchar_t keyword. 1852 Opts.WChar = Opts.CPlusPlus; 1853 1854 Opts.GNUKeywords = Opts.GNUMode; 1855 Opts.CXXOperatorNames = Opts.CPlusPlus; 1856 1857 Opts.AlignedAllocation = Opts.CPlusPlus17; 1858 1859 Opts.DollarIdents = !Opts.AsmPreprocessor; 1860 } 1861 1862 /// Attempt to parse a visibility value out of the given argument. 1863 static Visibility parseVisibility(Arg *arg, ArgList &args, 1864 DiagnosticsEngine &diags) { 1865 StringRef value = arg->getValue(); 1866 if (value == "default") { 1867 return DefaultVisibility; 1868 } else if (value == "hidden" || value == "internal") { 1869 return HiddenVisibility; 1870 } else if (value == "protected") { 1871 // FIXME: diagnose if target does not support protected visibility 1872 return ProtectedVisibility; 1873 } 1874 1875 diags.Report(diag::err_drv_invalid_value) 1876 << arg->getAsString(args) << value; 1877 return DefaultVisibility; 1878 } 1879 1880 /// Check if input file kind and language standard are compatible. 1881 static bool IsInputCompatibleWithStandard(InputKind IK, 1882 const LangStandard &S) { 1883 switch (IK.getLanguage()) { 1884 case InputKind::Unknown: 1885 case InputKind::LLVM_IR: 1886 llvm_unreachable("should not parse language flags for this input"); 1887 1888 case InputKind::C: 1889 case InputKind::ObjC: 1890 case InputKind::RenderScript: 1891 return S.getLanguage() == InputKind::C; 1892 1893 case InputKind::OpenCL: 1894 return S.getLanguage() == InputKind::OpenCL; 1895 1896 case InputKind::CXX: 1897 case InputKind::ObjCXX: 1898 return S.getLanguage() == InputKind::CXX; 1899 1900 case InputKind::CUDA: 1901 // FIXME: What -std= values should be permitted for CUDA compilations? 1902 return S.getLanguage() == InputKind::CUDA || 1903 S.getLanguage() == InputKind::CXX; 1904 1905 case InputKind::Asm: 1906 // Accept (and ignore) all -std= values. 1907 // FIXME: The -std= value is not ignored; it affects the tokenization 1908 // and preprocessing rules if we're preprocessing this asm input. 1909 return true; 1910 } 1911 1912 llvm_unreachable("unexpected input language"); 1913 } 1914 1915 /// Get language name for given input kind. 1916 static const StringRef GetInputKindName(InputKind IK) { 1917 switch (IK.getLanguage()) { 1918 case InputKind::C: 1919 return "C"; 1920 case InputKind::ObjC: 1921 return "Objective-C"; 1922 case InputKind::CXX: 1923 return "C++"; 1924 case InputKind::ObjCXX: 1925 return "Objective-C++"; 1926 case InputKind::OpenCL: 1927 return "OpenCL"; 1928 case InputKind::CUDA: 1929 return "CUDA"; 1930 case InputKind::RenderScript: 1931 return "RenderScript"; 1932 1933 case InputKind::Asm: 1934 return "Asm"; 1935 case InputKind::LLVM_IR: 1936 return "LLVM IR"; 1937 1938 case InputKind::Unknown: 1939 break; 1940 } 1941 llvm_unreachable("unknown input language"); 1942 } 1943 1944 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1945 const TargetOptions &TargetOpts, 1946 PreprocessorOptions &PPOpts, 1947 DiagnosticsEngine &Diags) { 1948 // FIXME: Cleanup per-file based stuff. 1949 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1950 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1951 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1952 #define LANGSTANDARD(id, name, lang, desc, features) \ 1953 .Case(name, LangStandard::lang_##id) 1954 #define LANGSTANDARD_ALIAS(id, alias) \ 1955 .Case(alias, LangStandard::lang_##id) 1956 #include "clang/Frontend/LangStandards.def" 1957 .Default(LangStandard::lang_unspecified); 1958 if (LangStd == LangStandard::lang_unspecified) { 1959 Diags.Report(diag::err_drv_invalid_value) 1960 << A->getAsString(Args) << A->getValue(); 1961 // Report supported standards with short description. 1962 for (unsigned KindValue = 0; 1963 KindValue != LangStandard::lang_unspecified; 1964 ++KindValue) { 1965 const LangStandard &Std = LangStandard::getLangStandardForKind( 1966 static_cast<LangStandard::Kind>(KindValue)); 1967 if (IsInputCompatibleWithStandard(IK, Std)) { 1968 auto Diag = Diags.Report(diag::note_drv_use_standard); 1969 Diag << Std.getName() << Std.getDescription(); 1970 unsigned NumAliases = 0; 1971 #define LANGSTANDARD(id, name, lang, desc, features) 1972 #define LANGSTANDARD_ALIAS(id, alias) \ 1973 if (KindValue == LangStandard::lang_##id) ++NumAliases; 1974 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1975 #include "clang/Frontend/LangStandards.def" 1976 Diag << NumAliases; 1977 #define LANGSTANDARD(id, name, lang, desc, features) 1978 #define LANGSTANDARD_ALIAS(id, alias) \ 1979 if (KindValue == LangStandard::lang_##id) Diag << alias; 1980 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1981 #include "clang/Frontend/LangStandards.def" 1982 } 1983 } 1984 } else { 1985 // Valid standard, check to make sure language and standard are 1986 // compatible. 1987 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1988 if (!IsInputCompatibleWithStandard(IK, Std)) { 1989 Diags.Report(diag::err_drv_argument_not_allowed_with) 1990 << A->getAsString(Args) << GetInputKindName(IK); 1991 } 1992 } 1993 } 1994 1995 // -cl-std only applies for OpenCL language standards. 1996 // Override the -std option in this case. 1997 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1998 LangStandard::Kind OpenCLLangStd 1999 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2000 .Cases("cl", "CL", LangStandard::lang_opencl10) 2001 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2002 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2003 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2004 .Default(LangStandard::lang_unspecified); 2005 2006 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2007 Diags.Report(diag::err_drv_invalid_value) 2008 << A->getAsString(Args) << A->getValue(); 2009 } 2010 else 2011 LangStd = OpenCLLangStd; 2012 } 2013 2014 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2015 2016 llvm::Triple T(TargetOpts.Triple); 2017 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2018 2019 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2020 // This option should be deprecated for CL > 1.0 because 2021 // this option was added for compatibility with OpenCL 1.0. 2022 if (Args.getLastArg(OPT_cl_strict_aliasing) 2023 && Opts.OpenCLVersion > 100) { 2024 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 2025 std::string(".") + 2026 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 2027 Diags.Report(diag::warn_option_invalid_ocl_version) 2028 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2029 } 2030 2031 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2032 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2033 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2034 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2035 // name, as it doesn't seem a useful distinction. 2036 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2037 Opts.GNUKeywords); 2038 2039 if (Args.hasArg(OPT_fno_operator_names)) 2040 Opts.CXXOperatorNames = 0; 2041 2042 if (Args.hasArg(OPT_fcuda_is_device)) 2043 Opts.CUDAIsDevice = 1; 2044 2045 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2046 Opts.CUDAAllowVariadicFunctions = 1; 2047 2048 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2049 Opts.CUDAHostDeviceConstexpr = 0; 2050 2051 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 2052 Opts.CUDADeviceFlushDenormalsToZero = 1; 2053 2054 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2055 Opts.CUDADeviceApproxTranscendentals = 1; 2056 2057 if (Opts.ObjC1) { 2058 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2059 StringRef value = arg->getValue(); 2060 if (Opts.ObjCRuntime.tryParse(value)) 2061 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2062 } 2063 2064 if (Args.hasArg(OPT_fobjc_gc_only)) 2065 Opts.setGC(LangOptions::GCOnly); 2066 else if (Args.hasArg(OPT_fobjc_gc)) 2067 Opts.setGC(LangOptions::HybridGC); 2068 else if (Args.hasArg(OPT_fobjc_arc)) { 2069 Opts.ObjCAutoRefCount = 1; 2070 if (!Opts.ObjCRuntime.allowsARC()) 2071 Diags.Report(diag::err_arc_unsupported_on_runtime); 2072 } 2073 2074 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2075 // whether the feature is actually enabled. This is predominantly 2076 // determined by -fobjc-runtime, but we allow it to be overridden 2077 // from the command line for testing purposes. 2078 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2079 Opts.ObjCWeakRuntime = 1; 2080 else 2081 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2082 2083 // ObjCWeak determines whether __weak is actually enabled. 2084 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2085 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2086 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2087 assert(!Opts.ObjCWeak); 2088 } else if (Opts.getGC() != LangOptions::NonGC) { 2089 Diags.Report(diag::err_objc_weak_with_gc); 2090 } else if (!Opts.ObjCWeakRuntime) { 2091 Diags.Report(diag::err_objc_weak_unsupported); 2092 } else { 2093 Opts.ObjCWeak = 1; 2094 } 2095 } else if (Opts.ObjCAutoRefCount) { 2096 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2097 } 2098 2099 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2100 Opts.ObjCInferRelatedResultType = 0; 2101 2102 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2103 Opts.ObjCSubscriptingLegacyRuntime = 2104 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2105 } 2106 2107 if (Args.hasArg(OPT_fgnu89_inline)) { 2108 if (Opts.CPlusPlus) 2109 Diags.Report(diag::err_drv_argument_not_allowed_with) 2110 << "-fgnu89-inline" << GetInputKindName(IK); 2111 else 2112 Opts.GNUInline = 1; 2113 } 2114 2115 if (Args.hasArg(OPT_fapple_kext)) { 2116 if (!Opts.CPlusPlus) 2117 Diags.Report(diag::warn_c_kext); 2118 else 2119 Opts.AppleKext = 1; 2120 } 2121 2122 if (Args.hasArg(OPT_print_ivar_layout)) 2123 Opts.ObjCGCBitmapPrint = 1; 2124 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2125 Opts.NoConstantCFStrings = 1; 2126 2127 if (Args.hasArg(OPT_fzvector)) 2128 Opts.ZVector = 1; 2129 2130 if (Args.hasArg(OPT_pthread)) 2131 Opts.POSIXThreads = 1; 2132 2133 // The value-visibility mode defaults to "default". 2134 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2135 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2136 } else { 2137 Opts.setValueVisibilityMode(DefaultVisibility); 2138 } 2139 2140 // The type-visibility mode defaults to the value-visibility mode. 2141 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2142 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2143 } else { 2144 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2145 } 2146 2147 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2148 Opts.InlineVisibilityHidden = 1; 2149 2150 if (Args.hasArg(OPT_ftrapv)) { 2151 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2152 // Set the handler, if one is specified. 2153 Opts.OverflowHandler = 2154 Args.getLastArgValue(OPT_ftrapv_handler); 2155 } 2156 else if (Args.hasArg(OPT_fwrapv)) 2157 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2158 2159 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2160 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2161 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2162 Opts.MSCompatibilityVersion = 0; 2163 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2164 VersionTuple VT; 2165 if (VT.tryParse(A->getValue())) 2166 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2167 << A->getValue(); 2168 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2169 VT.getMinor().getValueOr(0) * 100000 + 2170 VT.getSubminor().getValueOr(0); 2171 } 2172 2173 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 2174 // is specified, or -std is set to a conforming mode. 2175 // Trigraphs are disabled by default in c++1z onwards. 2176 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2177 Opts.Trigraphs = 2178 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2179 2180 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2181 OPT_fno_dollars_in_identifiers, 2182 Opts.DollarIdents); 2183 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2184 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2185 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2186 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2187 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2188 Opts.ConstStrings); 2189 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2190 Opts.LaxVectorConversions = 0; 2191 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2192 Opts.ThreadsafeStatics = 0; 2193 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2194 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2195 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2196 2197 // Handle exception personalities 2198 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2199 options::OPT_fseh_exceptions, 2200 options::OPT_fdwarf_exceptions); 2201 if (A) { 2202 const Option &Opt = A->getOption(); 2203 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2204 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2205 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2206 } 2207 2208 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2209 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2210 2211 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2212 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2213 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2214 && Opts.OpenCLVersion >= 200); 2215 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2216 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2217 2218 // Enable [[]] attributes in C++11 by default. 2219 Opts.DoubleSquareBracketAttributes = 2220 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2221 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11); 2222 2223 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2224 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2225 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2226 Opts.ModulesDeclUse = 2227 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2228 Opts.ModulesLocalVisibility = 2229 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2230 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2231 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2232 Opts.ModulesSearchAll = Opts.Modules && 2233 !Args.hasArg(OPT_fno_modules_search_all) && 2234 Args.hasArg(OPT_fmodules_search_all); 2235 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2236 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2237 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2238 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2239 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2240 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2241 .Case("char", 1) 2242 .Case("short", 2) 2243 .Case("int", 4) 2244 .Default(0); 2245 if (Opts.WCharSize == 0) 2246 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2247 } 2248 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2249 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2250 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2251 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2252 if (!Opts.NoBuiltin) 2253 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2254 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2255 Opts.RelaxedTemplateTemplateArgs = 2256 Args.hasArg(OPT_frelaxed_template_template_args); 2257 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2258 Opts.AlignedAllocation = 2259 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2260 Opts.AlignedAllocation); 2261 Opts.AlignedAllocationUnavailable = 2262 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2263 Opts.NewAlignOverride = 2264 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2265 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2266 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2267 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2268 << A->getValue(); 2269 Opts.NewAlignOverride = 0; 2270 } 2271 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2272 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2273 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2274 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2275 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2276 Opts.InstantiationDepth = 2277 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2278 Opts.ArrowDepth = 2279 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2280 Opts.ConstexprCallDepth = 2281 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2282 Opts.ConstexprStepLimit = 2283 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2284 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2285 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2286 Opts.NumLargeByValueCopy = 2287 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2288 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2289 Opts.ObjCConstantStringClass = 2290 Args.getLastArgValue(OPT_fconstant_string_class); 2291 Opts.ObjCDefaultSynthProperties = 2292 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2293 Opts.EncodeExtendedBlockSig = 2294 Args.hasArg(OPT_fencode_extended_block_signature); 2295 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2296 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2297 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2298 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2299 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2300 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2301 Opts.Static = Args.hasArg(OPT_static_define); 2302 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2303 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2304 || Args.hasArg(OPT_fdump_record_layouts); 2305 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2306 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2307 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2308 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2309 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2310 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2311 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2312 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2313 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2314 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2315 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2316 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2317 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2318 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2319 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2320 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2321 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2322 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2323 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2324 // is enabled. 2325 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2326 | Opts.NativeHalfArgsAndReturns; 2327 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2328 2329 // __declspec is enabled by default for the PS4 by the driver, and also 2330 // enabled for Microsoft Extensions or Borland Extensions, here. 2331 // 2332 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2333 // CUDA extension. However, it is required for supporting 2334 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2335 // been rewritten in terms of something more generic, remove the Opts.CUDA 2336 // term here. 2337 Opts.DeclSpecKeyword = 2338 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2339 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2340 2341 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2342 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2343 .Case("target", LangOptions::ASMM_Target) 2344 .Case("no", LangOptions::ASMM_Off) 2345 .Case("yes", LangOptions::ASMM_On) 2346 .Default(255)) { 2347 default: 2348 Diags.Report(diag::err_drv_invalid_value) 2349 << "-faddress-space-map-mangling=" << A->getValue(); 2350 break; 2351 case LangOptions::ASMM_Target: 2352 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2353 break; 2354 case LangOptions::ASMM_On: 2355 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2356 break; 2357 case LangOptions::ASMM_Off: 2358 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2359 break; 2360 } 2361 } 2362 2363 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2364 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2365 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2366 A->getValue()) 2367 .Case("single", 2368 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2369 .Case("multiple", 2370 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2371 .Case("virtual", 2372 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2373 .Default(LangOptions::PPTMK_BestCase); 2374 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2375 Diags.Report(diag::err_drv_invalid_value) 2376 << "-fms-memptr-rep=" << A->getValue(); 2377 2378 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2379 } 2380 2381 // Check for MS default calling conventions being specified. 2382 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2383 LangOptions::DefaultCallingConvention DefaultCC = 2384 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2385 .Case("cdecl", LangOptions::DCC_CDecl) 2386 .Case("fastcall", LangOptions::DCC_FastCall) 2387 .Case("stdcall", LangOptions::DCC_StdCall) 2388 .Case("vectorcall", LangOptions::DCC_VectorCall) 2389 .Case("regcall", LangOptions::DCC_RegCall) 2390 .Default(LangOptions::DCC_None); 2391 if (DefaultCC == LangOptions::DCC_None) 2392 Diags.Report(diag::err_drv_invalid_value) 2393 << "-fdefault-calling-conv=" << A->getValue(); 2394 2395 llvm::Triple T(TargetOpts.Triple); 2396 llvm::Triple::ArchType Arch = T.getArch(); 2397 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2398 DefaultCC == LangOptions::DCC_StdCall) && 2399 Arch != llvm::Triple::x86; 2400 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2401 DefaultCC == LangOptions::DCC_RegCall) && 2402 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2403 if (emitError) 2404 Diags.Report(diag::err_drv_argument_not_allowed_with) 2405 << A->getSpelling() << T.getTriple(); 2406 else 2407 Opts.setDefaultCallingConv(DefaultCC); 2408 } 2409 2410 // -mrtd option 2411 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2412 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2413 Diags.Report(diag::err_drv_argument_not_allowed_with) 2414 << A->getSpelling() << "-fdefault-calling-conv"; 2415 else { 2416 llvm::Triple T(TargetOpts.Triple); 2417 if (T.getArch() != llvm::Triple::x86) 2418 Diags.Report(diag::err_drv_argument_not_allowed_with) 2419 << A->getSpelling() << T.getTriple(); 2420 else 2421 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2422 } 2423 } 2424 2425 // Check if -fopenmp is specified. 2426 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2427 // Check if -fopenmp-simd is specified. 2428 Opts.OpenMPSimd = !Opts.OpenMP && Args.hasFlag(options::OPT_fopenmp_simd, 2429 options::OPT_fno_openmp_simd, 2430 /*Default=*/false); 2431 Opts.OpenMPUseTLS = 2432 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2433 Opts.OpenMPIsDevice = 2434 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2435 2436 if (Opts.OpenMP || Opts.OpenMPSimd) { 2437 if (int Version = 2438 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, 2439 Opts.OpenMPSimd ? 45 : Opts.OpenMP, Diags)) 2440 Opts.OpenMP = Version; 2441 else if (Opts.OpenMPSimd) 2442 Opts.OpenMP = 45; 2443 // Provide diagnostic when a given target is not expected to be an OpenMP 2444 // device or host. 2445 if (!Opts.OpenMPIsDevice) { 2446 switch (T.getArch()) { 2447 default: 2448 break; 2449 // Add unsupported host targets here: 2450 case llvm::Triple::nvptx: 2451 case llvm::Triple::nvptx64: 2452 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2453 << TargetOpts.Triple; 2454 break; 2455 } 2456 } 2457 } 2458 2459 // Set the flag to prevent the implementation from emitting device exception 2460 // handling code for those requiring so. 2461 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2462 Opts.Exceptions = 0; 2463 Opts.CXXExceptions = 0; 2464 } 2465 2466 // Get the OpenMP target triples if any. 2467 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2468 2469 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2470 llvm::Triple TT(A->getValue(i)); 2471 2472 if (TT.getArch() == llvm::Triple::UnknownArch || 2473 !(TT.getArch() == llvm::Triple::ppc || 2474 TT.getArch() == llvm::Triple::ppc64 || 2475 TT.getArch() == llvm::Triple::ppc64le || 2476 TT.getArch() == llvm::Triple::nvptx || 2477 TT.getArch() == llvm::Triple::nvptx64 || 2478 TT.getArch() == llvm::Triple::x86 || 2479 TT.getArch() == llvm::Triple::x86_64)) 2480 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2481 else 2482 Opts.OMPTargetTriples.push_back(TT); 2483 } 2484 } 2485 2486 // Get OpenMP host file path if any and report if a non existent file is 2487 // found 2488 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2489 Opts.OMPHostIRFile = A->getValue(); 2490 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2491 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2492 << Opts.OMPHostIRFile; 2493 } 2494 2495 // Record whether the __DEPRECATED define was requested. 2496 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2497 OPT_fno_deprecated_macro, 2498 Opts.Deprecated); 2499 2500 // FIXME: Eliminate this dependency. 2501 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2502 OptSize = getOptimizationLevelSize(Args); 2503 Opts.Optimize = Opt != 0; 2504 Opts.OptimizeSize = OptSize != 0; 2505 2506 // This is the __NO_INLINE__ define, which just depends on things like the 2507 // optimization level and -fno-inline, not actually whether the backend has 2508 // inlining enabled. 2509 Opts.NoInlineDefine = !Opts.Optimize; 2510 if (Arg *InlineArg = Args.getLastArg( 2511 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2512 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2513 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2514 Opts.NoInlineDefine = true; 2515 2516 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2517 Args.hasArg(OPT_cl_fast_relaxed_math); 2518 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2519 Args.hasArg(OPT_cl_finite_math_only) || 2520 Args.hasArg(OPT_cl_fast_relaxed_math); 2521 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2522 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2523 Args.hasArg(OPT_cl_fast_relaxed_math); 2524 2525 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2526 StringRef Val = A->getValue(); 2527 if (Val == "fast") 2528 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2529 else if (Val == "on") 2530 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2531 else if (Val == "off") 2532 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2533 else 2534 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2535 } 2536 2537 Opts.RetainCommentsFromSystemHeaders = 2538 Args.hasArg(OPT_fretain_comments_from_system_headers); 2539 2540 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2541 switch (SSP) { 2542 default: 2543 Diags.Report(diag::err_drv_invalid_value) 2544 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2545 break; 2546 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2547 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2548 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2549 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2550 } 2551 2552 // Parse -fsanitize= arguments. 2553 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2554 Diags, Opts.Sanitize); 2555 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2556 Opts.SanitizeAddressFieldPadding = 2557 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2558 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2559 2560 // -fxray-instrument 2561 Opts.XRayInstrument = 2562 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2563 2564 // -fxray-always-emit-customevents 2565 Opts.XRayAlwaysEmitCustomEvents = 2566 Args.hasFlag(OPT_fxray_always_emit_customevents, 2567 OPT_fnoxray_always_emit_customevents, false); 2568 2569 // -fxray-{always,never}-instrument= filenames. 2570 Opts.XRayAlwaysInstrumentFiles = 2571 Args.getAllArgValues(OPT_fxray_always_instrument); 2572 Opts.XRayNeverInstrumentFiles = 2573 Args.getAllArgValues(OPT_fxray_never_instrument); 2574 2575 // -fallow-editor-placeholders 2576 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2577 } 2578 2579 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 2580 switch (Action) { 2581 case frontend::ASTDeclList: 2582 case frontend::ASTDump: 2583 case frontend::ASTPrint: 2584 case frontend::ASTView: 2585 case frontend::EmitAssembly: 2586 case frontend::EmitBC: 2587 case frontend::EmitHTML: 2588 case frontend::EmitLLVM: 2589 case frontend::EmitLLVMOnly: 2590 case frontend::EmitCodeGenOnly: 2591 case frontend::EmitObj: 2592 case frontend::FixIt: 2593 case frontend::GenerateModule: 2594 case frontend::GenerateModuleInterface: 2595 case frontend::GeneratePCH: 2596 case frontend::GeneratePTH: 2597 case frontend::ParseSyntaxOnly: 2598 case frontend::ModuleFileInfo: 2599 case frontend::VerifyPCH: 2600 case frontend::PluginAction: 2601 case frontend::PrintDeclContext: 2602 case frontend::RewriteObjC: 2603 case frontend::RewriteTest: 2604 case frontend::RunAnalysis: 2605 case frontend::MigrateSource: 2606 return false; 2607 2608 case frontend::DumpRawTokens: 2609 case frontend::DumpTokens: 2610 case frontend::InitOnly: 2611 case frontend::PrintPreamble: 2612 case frontend::PrintPreprocessedInput: 2613 case frontend::RewriteMacros: 2614 case frontend::RunPreprocessorOnly: 2615 return true; 2616 } 2617 llvm_unreachable("invalid frontend action"); 2618 } 2619 2620 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2621 FileManager &FileMgr, 2622 DiagnosticsEngine &Diags, 2623 frontend::ActionKind Action) { 2624 using namespace options; 2625 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2626 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2627 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2628 Opts.TokenCache = A->getValue(); 2629 else 2630 Opts.TokenCache = Opts.ImplicitPTHInclude; 2631 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2632 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2633 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2634 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 2635 2636 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2637 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2638 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2639 2640 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2641 StringRef Value(A->getValue()); 2642 size_t Comma = Value.find(','); 2643 unsigned Bytes = 0; 2644 unsigned EndOfLine = 0; 2645 2646 if (Comma == StringRef::npos || 2647 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2648 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2649 Diags.Report(diag::err_drv_preamble_format); 2650 else { 2651 Opts.PrecompiledPreambleBytes.first = Bytes; 2652 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2653 } 2654 } 2655 2656 // Add macros from the command line. 2657 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2658 if (A->getOption().matches(OPT_D)) 2659 Opts.addMacroDef(A->getValue()); 2660 else 2661 Opts.addMacroUndef(A->getValue()); 2662 } 2663 2664 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2665 2666 // Add the ordered list of -includes. 2667 for (const Arg *A : Args.filtered(OPT_include)) 2668 Opts.Includes.emplace_back(A->getValue()); 2669 2670 for (const Arg *A : Args.filtered(OPT_chain_include)) 2671 Opts.ChainedIncludes.emplace_back(A->getValue()); 2672 2673 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2674 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2675 2676 if (Split.second.empty()) { 2677 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2678 continue; 2679 } 2680 2681 Opts.addRemappedFile(Split.first, Split.second); 2682 } 2683 2684 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2685 StringRef Name = A->getValue(); 2686 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2687 .Case("libc++", ARCXX_libcxx) 2688 .Case("libstdc++", ARCXX_libstdcxx) 2689 .Case("none", ARCXX_nolib) 2690 .Default(~0U); 2691 if (Library == ~0U) 2692 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2693 else 2694 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2695 } 2696 2697 // Always avoid lexing editor placeholders when we're just running the 2698 // preprocessor as we never want to emit the 2699 // "editor placeholder in source file" error in PP only mode. 2700 if (isStrictlyPreprocessorAction(Action)) 2701 Opts.LexEditorPlaceholders = false; 2702 } 2703 2704 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2705 ArgList &Args, 2706 frontend::ActionKind Action) { 2707 using namespace options; 2708 2709 if (isStrictlyPreprocessorAction(Action)) 2710 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2711 else 2712 Opts.ShowCPP = 0; 2713 2714 Opts.ShowComments = Args.hasArg(OPT_C); 2715 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2716 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2717 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2718 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2719 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2720 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 2721 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2722 } 2723 2724 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2725 DiagnosticsEngine &Diags) { 2726 using namespace options; 2727 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2728 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2729 StringRef Value = A->getValue(); 2730 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2731 .Case("default", llvm::EABI::Default) 2732 .Case("4", llvm::EABI::EABI4) 2733 .Case("5", llvm::EABI::EABI5) 2734 .Case("gnu", llvm::EABI::GNU) 2735 .Default(llvm::EABI::Unknown); 2736 if (EABIVersion == llvm::EABI::Unknown) 2737 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2738 << Value; 2739 else 2740 Opts.EABIVersion = EABIVersion; 2741 } 2742 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2743 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2744 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2745 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2746 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2747 // Use the default target triple if unspecified. 2748 if (Opts.Triple.empty()) 2749 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2750 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2751 } 2752 2753 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2754 const char *const *ArgBegin, 2755 const char *const *ArgEnd, 2756 DiagnosticsEngine &Diags) { 2757 bool Success = true; 2758 2759 // Parse the arguments. 2760 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2761 const unsigned IncludedFlagsBitmask = options::CC1Option; 2762 unsigned MissingArgIndex, MissingArgCount; 2763 InputArgList Args = 2764 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2765 MissingArgCount, IncludedFlagsBitmask); 2766 LangOptions &LangOpts = *Res.getLangOpts(); 2767 2768 // Check for missing argument error. 2769 if (MissingArgCount) { 2770 Diags.Report(diag::err_drv_missing_argument) 2771 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2772 Success = false; 2773 } 2774 2775 // Issue errors on unknown arguments. 2776 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2777 auto ArgString = A->getAsString(Args); 2778 std::string Nearest; 2779 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 2780 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 2781 else 2782 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 2783 << ArgString << Nearest; 2784 Success = false; 2785 } 2786 2787 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2788 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2789 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2790 Success &= 2791 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2792 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2793 ParseCommentArgs(LangOpts.CommentOpts, Args); 2794 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2795 // FIXME: We shouldn't have to pass the DashX option around here 2796 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2797 LangOpts.IsHeaderFile); 2798 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2799 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2800 Res.getTargetOpts()); 2801 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2802 Res.getFileSystemOpts().WorkingDir); 2803 if (DashX.getFormat() == InputKind::Precompiled || 2804 DashX.getLanguage() == InputKind::LLVM_IR) { 2805 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2806 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2807 // what the input type is. 2808 if (Args.hasArg(OPT_fobjc_arc)) 2809 LangOpts.ObjCAutoRefCount = 1; 2810 // PIClevel and PIELevel are needed during code generation and this should be 2811 // set regardless of the input type. 2812 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2813 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2814 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2815 Diags, LangOpts.Sanitize); 2816 } else { 2817 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2818 // FIXME: Should we really be calling this for an InputKind::Asm input? 2819 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2820 Res.getPreprocessorOpts(), Diags); 2821 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2822 LangOpts.ObjCExceptions = 1; 2823 } 2824 2825 if (LangOpts.CUDA) { 2826 // During CUDA device-side compilation, the aux triple is the 2827 // triple used for host compilation. 2828 if (LangOpts.CUDAIsDevice) 2829 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2830 } 2831 2832 // Set the triple of the host for OpenMP device compile. 2833 if (LangOpts.OpenMPIsDevice) 2834 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2835 2836 // FIXME: Override value name discarding when asan or msan is used because the 2837 // backend passes depend on the name of the alloca in order to print out 2838 // names. 2839 Res.getCodeGenOpts().DiscardValueNames &= 2840 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2841 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2842 2843 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2844 // PCH file and find the original header name. Remove the need to do that in 2845 // ParsePreprocessorArgs and remove the FileManager 2846 // parameters from the function and the "FileManager.h" #include. 2847 FileManager FileMgr(Res.getFileSystemOpts()); 2848 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags, 2849 Res.getFrontendOpts().ProgramAction); 2850 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2851 Res.getFrontendOpts().ProgramAction); 2852 2853 // Turn on -Wspir-compat for SPIR target. 2854 llvm::Triple T(Res.getTargetOpts().Triple); 2855 auto Arch = T.getArch(); 2856 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2857 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2858 } 2859 2860 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 2861 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 2862 !Res.getLangOpts()->Sanitize.empty()) { 2863 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 2864 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 2865 } 2866 return Success; 2867 } 2868 2869 std::string CompilerInvocation::getModuleHash() const { 2870 // Note: For QoI reasons, the things we use as a hash here should all be 2871 // dumped via the -module-info flag. 2872 using llvm::hash_code; 2873 using llvm::hash_value; 2874 using llvm::hash_combine; 2875 2876 // Start the signature with the compiler version. 2877 // FIXME: We'd rather use something more cryptographically sound than 2878 // CityHash, but this will do for now. 2879 hash_code code = hash_value(getClangFullRepositoryVersion()); 2880 2881 // Extend the signature with the language options 2882 #define LANGOPT(Name, Bits, Default, Description) \ 2883 code = hash_combine(code, LangOpts->Name); 2884 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2885 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2886 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2887 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2888 #include "clang/Basic/LangOptions.def" 2889 2890 for (StringRef Feature : LangOpts->ModuleFeatures) 2891 code = hash_combine(code, Feature); 2892 2893 // Extend the signature with the target options. 2894 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2895 TargetOpts->ABI); 2896 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2897 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2898 2899 // Extend the signature with preprocessor options. 2900 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2901 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2902 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2903 2904 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2905 I = getPreprocessorOpts().Macros.begin(), 2906 IEnd = getPreprocessorOpts().Macros.end(); 2907 I != IEnd; ++I) { 2908 // If we're supposed to ignore this macro for the purposes of modules, 2909 // don't put it into the hash. 2910 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2911 // Check whether we're ignoring this macro. 2912 StringRef MacroDef = I->first; 2913 if (hsOpts.ModulesIgnoreMacros.count( 2914 llvm::CachedHashString(MacroDef.split('=').first))) 2915 continue; 2916 } 2917 2918 code = hash_combine(code, I->first, I->second); 2919 } 2920 2921 // Extend the signature with the sysroot and other header search options. 2922 code = hash_combine(code, hsOpts.Sysroot, 2923 hsOpts.ModuleFormat, 2924 hsOpts.UseDebugInfo, 2925 hsOpts.UseBuiltinIncludes, 2926 hsOpts.UseStandardSystemIncludes, 2927 hsOpts.UseStandardCXXIncludes, 2928 hsOpts.UseLibcxx, 2929 hsOpts.ModulesValidateDiagnosticOptions); 2930 code = hash_combine(code, hsOpts.ResourceDir); 2931 2932 // Extend the signature with the user build path. 2933 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2934 2935 // Extend the signature with the module file extensions. 2936 const FrontendOptions &frontendOpts = getFrontendOpts(); 2937 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2938 code = ext->hashExtension(code); 2939 } 2940 2941 // Extend the signature with the enabled sanitizers, if at least one is 2942 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 2943 SanitizerSet SanHash = LangOpts->Sanitize; 2944 SanHash.clear(getPPTransparentSanitizers()); 2945 if (!SanHash.empty()) 2946 code = hash_combine(code, SanHash.Mask); 2947 2948 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2949 } 2950 2951 namespace clang { 2952 2953 template<typename IntTy> 2954 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2955 IntTy Default, 2956 DiagnosticsEngine *Diags) { 2957 IntTy Res = Default; 2958 if (Arg *A = Args.getLastArg(Id)) { 2959 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2960 if (Diags) 2961 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2962 << A->getValue(); 2963 } 2964 } 2965 return Res; 2966 } 2967 2968 2969 // Declared in clang/Frontend/Utils.h. 2970 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2971 DiagnosticsEngine *Diags) { 2972 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2973 } 2974 2975 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2976 uint64_t Default, 2977 DiagnosticsEngine *Diags) { 2978 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2979 } 2980 2981 void BuryPointer(const void *Ptr) { 2982 // This function may be called only a small fixed amount of times per each 2983 // invocation, otherwise we do actually have a leak which we want to report. 2984 // If this function is called more than kGraveYardMaxSize times, the pointers 2985 // will not be properly buried and a leak detector will report a leak, which 2986 // is what we want in such case. 2987 static const size_t kGraveYardMaxSize = 16; 2988 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2989 static std::atomic<unsigned> GraveYardSize; 2990 unsigned Idx = GraveYardSize++; 2991 if (Idx >= kGraveYardMaxSize) 2992 return; 2993 GraveYard[Idx] = Ptr; 2994 } 2995 2996 IntrusiveRefCntPtr<vfs::FileSystem> 2997 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2998 DiagnosticsEngine &Diags) { 2999 return createVFSFromCompilerInvocation(CI, Diags, vfs::getRealFileSystem()); 3000 } 3001 3002 IntrusiveRefCntPtr<vfs::FileSystem> 3003 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3004 DiagnosticsEngine &Diags, 3005 IntrusiveRefCntPtr<vfs::FileSystem> BaseFS) { 3006 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3007 return BaseFS; 3008 3009 IntrusiveRefCntPtr<vfs::OverlayFileSystem> Overlay( 3010 new vfs::OverlayFileSystem(BaseFS)); 3011 // earlier vfs files are on the bottom 3012 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3013 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3014 BaseFS->getBufferForFile(File); 3015 if (!Buffer) { 3016 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3017 return IntrusiveRefCntPtr<vfs::FileSystem>(); 3018 } 3019 3020 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 3021 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 3022 if (!FS.get()) { 3023 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3024 return IntrusiveRefCntPtr<vfs::FileSystem>(); 3025 } 3026 Overlay->pushOverlay(FS); 3027 } 3028 return Overlay; 3029 } 3030 } // end namespace clang 3031