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