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.FineGrainedBitfieldAccesses = 550 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 551 OPT_fno_fine_grained_bitfield_accesses, false); 552 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 553 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 554 Opts.NoCommon = Args.hasArg(OPT_fno_common); 555 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 556 Opts.OptimizeSize = getOptimizationLevelSize(Args); 557 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 558 Args.hasArg(OPT_ffreestanding)); 559 if (Opts.SimplifyLibCalls) 560 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 561 Opts.UnrollLoops = 562 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 563 (Opts.OptimizationLevel > 1)); 564 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 565 566 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 567 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 568 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 569 Opts.DebugInfoForProfiling = Args.hasFlag( 570 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 571 Opts.GnuPubnames = Args.hasArg(OPT_ggnu_pubnames); 572 573 setPGOInstrumentor(Opts, Args, Diags); 574 Opts.InstrProfileOutput = 575 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 576 Opts.ProfileInstrumentUsePath = 577 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 578 if (!Opts.ProfileInstrumentUsePath.empty()) 579 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 580 581 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 582 Opts.setClangABICompat(CodeGenOptions::ClangABI::Latest); 583 584 StringRef Ver = A->getValue(); 585 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 586 unsigned Major, Minor = 0; 587 588 // Check the version number is valid: either 3.x (0 <= x <= 9) or 589 // y or y.0 (4 <= y <= current version). 590 if (!VerParts.first.startswith("0") && 591 !VerParts.first.getAsInteger(10, Major) && 592 3 <= Major && Major <= CLANG_VERSION_MAJOR && 593 (Major == 3 ? VerParts.second.size() == 1 && 594 !VerParts.second.getAsInteger(10, Minor) 595 : VerParts.first.size() == Ver.size() || 596 VerParts.second == "0")) { 597 // Got a valid version number. 598 if (Major == 3 && Minor <= 8) 599 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver3_8); 600 else if (Major <= 4) 601 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver4); 602 } else if (Ver != "latest") { 603 Diags.Report(diag::err_drv_invalid_value) 604 << A->getAsString(Args) << A->getValue(); 605 } 606 } 607 608 Opts.CoverageMapping = 609 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 610 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 611 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 612 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 613 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 614 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 615 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 616 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 617 Opts.CodeModel = getCodeModel(Args, Diags); 618 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 619 Opts.DisableFPElim = 620 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 621 Opts.DisableFree = Args.hasArg(OPT_disable_free); 622 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 623 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 624 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 625 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 626 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 627 Args.hasArg(OPT_cl_fast_relaxed_math); 628 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 629 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 630 Args.hasArg(OPT_cl_finite_math_only) || 631 Args.hasArg(OPT_cl_fast_relaxed_math)); 632 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 633 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 634 Args.hasArg(OPT_cl_finite_math_only) || 635 Args.hasArg(OPT_cl_fast_relaxed_math)); 636 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 637 Args.hasArg(OPT_cl_no_signed_zeros) || 638 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 639 Args.hasArg(OPT_cl_fast_relaxed_math)); 640 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 641 Opts.CorrectlyRoundedDivSqrt = 642 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 643 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 644 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 645 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 646 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 647 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 648 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 649 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 650 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 651 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 652 Opts.IncrementalLinkerCompatible = 653 Args.hasArg(OPT_mincremental_linker_compatible); 654 Opts.PIECopyRelocations = 655 Args.hasArg(OPT_mpie_copy_relocations); 656 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 657 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 658 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 659 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 660 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 661 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 662 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 663 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 664 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 665 Args.hasArg(OPT_cl_fast_relaxed_math); 666 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 667 Opts.RelocationModel = getRelocModel(Args, Diags); 668 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 669 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 670 Diags.Report(diag::err_drv_invalid_value) 671 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 672 << Opts.ThreadModel; 673 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 674 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 675 676 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 677 OPT_fno_function_sections, false); 678 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 679 OPT_fno_data_sections, false); 680 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 681 OPT_fno_unique_section_names, true); 682 683 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 684 685 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 686 687 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 688 689 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 690 Opts.EmitSummaryIndex = false; 691 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 692 StringRef S = A->getValue(); 693 if (S == "thin") 694 Opts.EmitSummaryIndex = true; 695 else if (S != "full") 696 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 697 } 698 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 699 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 700 if (IK.getLanguage() != InputKind::LLVM_IR) 701 Diags.Report(diag::err_drv_argument_only_allowed_with) 702 << A->getAsString(Args) << "-x ir"; 703 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 704 } 705 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 706 707 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 708 709 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 710 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 711 712 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 713 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 714 715 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 716 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 717 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 718 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 719 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 720 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 721 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 722 Opts.CoverageNoFunctionNamesInData = 723 Args.hasArg(OPT_coverage_no_function_names_in_data); 724 Opts.CoverageExitBlockBeforeBody = 725 Args.hasArg(OPT_coverage_exit_block_before_body); 726 if (Args.hasArg(OPT_coverage_version_EQ)) { 727 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 728 if (CoverageVersion.size() != 4) { 729 Diags.Report(diag::err_drv_invalid_value) 730 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 731 << CoverageVersion; 732 } else { 733 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 734 } 735 } 736 } 737 // Handle -fembed-bitcode option. 738 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 739 StringRef Name = A->getValue(); 740 unsigned Model = llvm::StringSwitch<unsigned>(Name) 741 .Case("off", CodeGenOptions::Embed_Off) 742 .Case("all", CodeGenOptions::Embed_All) 743 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 744 .Case("marker", CodeGenOptions::Embed_Marker) 745 .Default(~0U); 746 if (Model == ~0U) { 747 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 748 Success = false; 749 } else 750 Opts.setEmbedBitcode( 751 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 752 } 753 // FIXME: For backend options that are not yet recorded as function 754 // attributes in the IR, keep track of them so we can embed them in a 755 // separate data section and use them when building the bitcode. 756 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 757 for (const auto &A : Args) { 758 // Do not encode output and input. 759 if (A->getOption().getID() == options::OPT_o || 760 A->getOption().getID() == options::OPT_INPUT || 761 A->getOption().getID() == options::OPT_x || 762 A->getOption().getID() == options::OPT_fembed_bitcode || 763 (A->getOption().getGroup().isValid() && 764 A->getOption().getGroup().getID() == options::OPT_W_Group)) 765 continue; 766 ArgStringList ASL; 767 A->render(Args, ASL); 768 for (const auto &arg : ASL) { 769 StringRef ArgStr(arg); 770 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 771 // using \00 to seperate each commandline options. 772 Opts.CmdArgs.push_back('\0'); 773 } 774 } 775 } 776 777 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 778 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 779 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 780 Opts.XRayInstructionThreshold = 781 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 782 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 783 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 784 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 785 786 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 787 OPT_compress_debug_sections_EQ)) { 788 if (A->getOption().getID() == OPT_compress_debug_sections) { 789 // TODO: be more clever about the compression type auto-detection 790 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 791 } else { 792 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 793 .Case("none", llvm::DebugCompressionType::None) 794 .Case("zlib", llvm::DebugCompressionType::Z) 795 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 796 .Default(llvm::DebugCompressionType::None); 797 Opts.setCompressDebugSections(DCT); 798 } 799 } 800 801 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 802 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 803 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 804 CodeGenOptions::BitcodeFileToLink F; 805 F.Filename = A->getValue(); 806 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) { 807 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 808 // When linking CUDA bitcode, propagate function attributes so that 809 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 810 F.PropagateAttrs = true; 811 F.Internalize = true; 812 } 813 Opts.LinkBitcodeFiles.push_back(F); 814 } 815 Opts.SanitizeCoverageType = 816 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 817 Opts.SanitizeCoverageIndirectCalls = 818 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 819 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 820 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 821 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 822 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 823 Opts.SanitizeCoverage8bitCounters = 824 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 825 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 826 Opts.SanitizeCoverageTracePCGuard = 827 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 828 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 829 Opts.SanitizeCoverageInline8bitCounters = 830 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 831 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 832 Opts.SanitizeCoverageStackDepth = 833 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 834 Opts.SanitizeMemoryTrackOrigins = 835 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 836 Opts.SanitizeMemoryUseAfterDtor = 837 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 838 OPT_fno_sanitize_memory_use_after_dtor, 839 false); 840 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 841 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 842 Opts.SanitizeCfiICallGeneralizePointers = 843 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 844 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 845 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 846 OPT_fno_sanitize_address_use_after_scope)) { 847 Opts.SanitizeAddressUseAfterScope = 848 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 849 } 850 Opts.SanitizeAddressGlobalsDeadStripping = 851 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 852 Opts.SSPBufferSize = 853 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 854 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 855 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 856 StringRef Val = A->getValue(); 857 unsigned StackAlignment = Opts.StackAlignment; 858 Val.getAsInteger(10, StackAlignment); 859 Opts.StackAlignment = StackAlignment; 860 } 861 862 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 863 StringRef Val = A->getValue(); 864 unsigned StackProbeSize = Opts.StackProbeSize; 865 Val.getAsInteger(0, StackProbeSize); 866 Opts.StackProbeSize = StackProbeSize; 867 } 868 869 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 870 StringRef Name = A->getValue(); 871 unsigned Method = llvm::StringSwitch<unsigned>(Name) 872 .Case("legacy", CodeGenOptions::Legacy) 873 .Case("non-legacy", CodeGenOptions::NonLegacy) 874 .Case("mixed", CodeGenOptions::Mixed) 875 .Default(~0U); 876 if (Method == ~0U) { 877 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 878 Success = false; 879 } else { 880 Opts.setObjCDispatchMethod( 881 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 882 } 883 } 884 885 Opts.EmulatedTLS = 886 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 887 888 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 889 StringRef Name = A->getValue(); 890 unsigned Model = llvm::StringSwitch<unsigned>(Name) 891 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 892 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 893 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 894 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 895 .Default(~0U); 896 if (Model == ~0U) { 897 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 898 Success = false; 899 } else { 900 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 901 } 902 } 903 904 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 905 StringRef Val = A->getValue(); 906 if (Val == "ieee") 907 Opts.FPDenormalMode = "ieee"; 908 else if (Val == "preserve-sign") 909 Opts.FPDenormalMode = "preserve-sign"; 910 else if (Val == "positive-zero") 911 Opts.FPDenormalMode = "positive-zero"; 912 else 913 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 914 } 915 916 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 917 if (A->getOption().matches(OPT_fpcc_struct_return)) { 918 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 919 } else { 920 assert(A->getOption().matches(OPT_freg_struct_return)); 921 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 922 } 923 } 924 925 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 926 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 927 bool NeedLocTracking = false; 928 929 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 930 if (!Opts.OptRecordFile.empty()) 931 NeedLocTracking = true; 932 933 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 934 Opts.OptimizationRemarkPattern = 935 GenerateOptimizationRemarkRegex(Diags, Args, A); 936 NeedLocTracking = true; 937 } 938 939 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 940 Opts.OptimizationRemarkMissedPattern = 941 GenerateOptimizationRemarkRegex(Diags, Args, A); 942 NeedLocTracking = true; 943 } 944 945 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 946 Opts.OptimizationRemarkAnalysisPattern = 947 GenerateOptimizationRemarkRegex(Diags, Args, A); 948 NeedLocTracking = true; 949 } 950 951 Opts.DiagnosticsWithHotness = 952 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 953 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 954 bool UsingProfile = UsingSampleProfile || 955 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 956 957 if (Opts.DiagnosticsWithHotness && !UsingProfile) 958 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 959 << "-fdiagnostics-show-hotness"; 960 961 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 962 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 963 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 964 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 965 << "-fdiagnostics-hotness-threshold="; 966 967 // If the user requested to use a sample profile for PGO, then the 968 // backend will need to track source location information so the profile 969 // can be incorporated into the IR. 970 if (UsingSampleProfile) 971 NeedLocTracking = true; 972 973 // If the user requested a flag that requires source locations available in 974 // the backend, make sure that the backend tracks source location information. 975 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 976 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 977 978 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 979 980 // Parse -fsanitize-recover= arguments. 981 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 982 parseSanitizerKinds("-fsanitize-recover=", 983 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 984 Opts.SanitizeRecover); 985 parseSanitizerKinds("-fsanitize-trap=", 986 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 987 Opts.SanitizeTrap); 988 989 Opts.CudaGpuBinaryFileNames = 990 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 991 992 Opts.Backchain = Args.hasArg(OPT_mbackchain); 993 994 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 995 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 996 997 return Success; 998 } 999 1000 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1001 ArgList &Args) { 1002 using namespace options; 1003 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1004 Opts.Targets = Args.getAllArgValues(OPT_MT); 1005 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1006 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1007 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1008 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1009 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1010 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1011 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 1012 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1013 Opts.ModuleDependencyOutputDir = 1014 Args.getLastArgValue(OPT_module_dependency_dir); 1015 if (Args.hasArg(OPT_MV)) 1016 Opts.OutputFormat = DependencyOutputFormat::NMake; 1017 // Add sanitizer blacklists as extra dependencies. 1018 // They won't be discovered by the regular preprocessor, so 1019 // we let make / ninja to know about this implicit dependency. 1020 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1021 // Only the -fmodule-file=<file> form. 1022 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1023 StringRef Val = A->getValue(); 1024 if (Val.find('=') == StringRef::npos) 1025 Opts.ExtraDeps.push_back(Val); 1026 } 1027 } 1028 1029 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1030 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1031 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1032 // Support both clang's -f[no-]color-diagnostics and gcc's 1033 // -f[no-]diagnostics-colors[=never|always|auto]. 1034 enum { 1035 Colors_On, 1036 Colors_Off, 1037 Colors_Auto 1038 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1039 for (Arg *A : Args) { 1040 const Option &O = A->getOption(); 1041 if (O.matches(options::OPT_fcolor_diagnostics) || 1042 O.matches(options::OPT_fdiagnostics_color)) { 1043 ShowColors = Colors_On; 1044 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1045 O.matches(options::OPT_fno_diagnostics_color)) { 1046 ShowColors = Colors_Off; 1047 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1048 StringRef Value(A->getValue()); 1049 if (Value == "always") 1050 ShowColors = Colors_On; 1051 else if (Value == "never") 1052 ShowColors = Colors_Off; 1053 else if (Value == "auto") 1054 ShowColors = Colors_Auto; 1055 } 1056 } 1057 return ShowColors == Colors_On || 1058 (ShowColors == Colors_Auto && 1059 llvm::sys::Process::StandardErrHasColors()); 1060 } 1061 1062 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1063 DiagnosticsEngine *Diags, 1064 bool DefaultDiagColor, bool DefaultShowOpt) { 1065 using namespace options; 1066 bool Success = true; 1067 1068 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1069 if (Arg *A = 1070 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1071 Opts.DiagnosticSerializationFile = A->getValue(); 1072 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1073 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1074 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1075 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1076 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1077 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1078 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1079 OPT_fno_show_column, 1080 /*Default=*/true); 1081 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1082 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1083 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1084 Opts.ShowOptionNames = 1085 Args.hasFlag(OPT_fdiagnostics_show_option, 1086 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1087 1088 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1089 1090 // Default behavior is to not to show note include stacks. 1091 Opts.ShowNoteIncludeStack = false; 1092 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1093 OPT_fno_diagnostics_show_note_include_stack)) 1094 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1095 Opts.ShowNoteIncludeStack = true; 1096 1097 StringRef ShowOverloads = 1098 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1099 if (ShowOverloads == "best") 1100 Opts.setShowOverloads(Ovl_Best); 1101 else if (ShowOverloads == "all") 1102 Opts.setShowOverloads(Ovl_All); 1103 else { 1104 Success = false; 1105 if (Diags) 1106 Diags->Report(diag::err_drv_invalid_value) 1107 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1108 << ShowOverloads; 1109 } 1110 1111 StringRef ShowCategory = 1112 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1113 if (ShowCategory == "none") 1114 Opts.ShowCategories = 0; 1115 else if (ShowCategory == "id") 1116 Opts.ShowCategories = 1; 1117 else if (ShowCategory == "name") 1118 Opts.ShowCategories = 2; 1119 else { 1120 Success = false; 1121 if (Diags) 1122 Diags->Report(diag::err_drv_invalid_value) 1123 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1124 << ShowCategory; 1125 } 1126 1127 StringRef Format = 1128 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1129 if (Format == "clang") 1130 Opts.setFormat(DiagnosticOptions::Clang); 1131 else if (Format == "msvc") 1132 Opts.setFormat(DiagnosticOptions::MSVC); 1133 else if (Format == "msvc-fallback") { 1134 Opts.setFormat(DiagnosticOptions::MSVC); 1135 Opts.CLFallbackMode = true; 1136 } else if (Format == "vi") 1137 Opts.setFormat(DiagnosticOptions::Vi); 1138 else { 1139 Success = false; 1140 if (Diags) 1141 Diags->Report(diag::err_drv_invalid_value) 1142 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1143 << Format; 1144 } 1145 1146 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1147 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1148 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1149 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1150 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1151 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1152 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1153 Diags, DiagMask); 1154 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1155 DiagMask = DiagnosticLevelMask::All; 1156 Opts.setVerifyIgnoreUnexpected(DiagMask); 1157 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1158 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1159 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1160 Opts.MacroBacktraceLimit = 1161 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1162 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1163 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1164 Args, OPT_ftemplate_backtrace_limit, 1165 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1166 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1167 Args, OPT_fconstexpr_backtrace_limit, 1168 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1169 Opts.SpellCheckingLimit = getLastArgIntValue( 1170 Args, OPT_fspell_checking_limit, 1171 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1172 Opts.SnippetLineLimit = getLastArgIntValue( 1173 Args, OPT_fcaret_diagnostics_max_lines, 1174 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1175 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1176 DiagnosticOptions::DefaultTabStop, Diags); 1177 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1178 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1179 if (Diags) 1180 Diags->Report(diag::warn_ignoring_ftabstop_value) 1181 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1182 } 1183 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1184 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1185 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1186 1187 return Success; 1188 } 1189 1190 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1191 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1192 } 1193 1194 /// Parse the argument to the -ftest-module-file-extension 1195 /// command-line argument. 1196 /// 1197 /// \returns true on error, false on success. 1198 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1199 std::string &BlockName, 1200 unsigned &MajorVersion, 1201 unsigned &MinorVersion, 1202 bool &Hashed, 1203 std::string &UserInfo) { 1204 SmallVector<StringRef, 5> Args; 1205 Arg.split(Args, ':', 5); 1206 if (Args.size() < 5) 1207 return true; 1208 1209 BlockName = Args[0]; 1210 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1211 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1212 if (Args[3].getAsInteger(2, Hashed)) return true; 1213 if (Args.size() > 4) 1214 UserInfo = Args[4]; 1215 return false; 1216 } 1217 1218 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1219 DiagnosticsEngine &Diags, 1220 bool &IsHeaderFile) { 1221 using namespace options; 1222 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1223 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1224 switch (A->getOption().getID()) { 1225 default: 1226 llvm_unreachable("Invalid option in group!"); 1227 case OPT_ast_list: 1228 Opts.ProgramAction = frontend::ASTDeclList; break; 1229 case OPT_ast_dump: 1230 case OPT_ast_dump_all: 1231 case OPT_ast_dump_lookups: 1232 Opts.ProgramAction = frontend::ASTDump; break; 1233 case OPT_ast_print: 1234 Opts.ProgramAction = frontend::ASTPrint; break; 1235 case OPT_ast_view: 1236 Opts.ProgramAction = frontend::ASTView; break; 1237 case OPT_dump_raw_tokens: 1238 Opts.ProgramAction = frontend::DumpRawTokens; break; 1239 case OPT_dump_tokens: 1240 Opts.ProgramAction = frontend::DumpTokens; break; 1241 case OPT_S: 1242 Opts.ProgramAction = frontend::EmitAssembly; break; 1243 case OPT_emit_llvm_bc: 1244 Opts.ProgramAction = frontend::EmitBC; break; 1245 case OPT_emit_html: 1246 Opts.ProgramAction = frontend::EmitHTML; break; 1247 case OPT_emit_llvm: 1248 Opts.ProgramAction = frontend::EmitLLVM; break; 1249 case OPT_emit_llvm_only: 1250 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1251 case OPT_emit_codegen_only: 1252 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1253 case OPT_emit_obj: 1254 Opts.ProgramAction = frontend::EmitObj; break; 1255 case OPT_fixit_EQ: 1256 Opts.FixItSuffix = A->getValue(); 1257 // fall-through! 1258 case OPT_fixit: 1259 Opts.ProgramAction = frontend::FixIt; break; 1260 case OPT_emit_module: 1261 Opts.ProgramAction = frontend::GenerateModule; break; 1262 case OPT_emit_module_interface: 1263 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1264 case OPT_emit_pch: 1265 Opts.ProgramAction = frontend::GeneratePCH; break; 1266 case OPT_emit_pth: 1267 Opts.ProgramAction = frontend::GeneratePTH; break; 1268 case OPT_init_only: 1269 Opts.ProgramAction = frontend::InitOnly; break; 1270 case OPT_fsyntax_only: 1271 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1272 case OPT_module_file_info: 1273 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1274 case OPT_verify_pch: 1275 Opts.ProgramAction = frontend::VerifyPCH; break; 1276 case OPT_print_decl_contexts: 1277 Opts.ProgramAction = frontend::PrintDeclContext; break; 1278 case OPT_print_preamble: 1279 Opts.ProgramAction = frontend::PrintPreamble; break; 1280 case OPT_E: 1281 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1282 case OPT_rewrite_macros: 1283 Opts.ProgramAction = frontend::RewriteMacros; break; 1284 case OPT_rewrite_objc: 1285 Opts.ProgramAction = frontend::RewriteObjC; break; 1286 case OPT_rewrite_test: 1287 Opts.ProgramAction = frontend::RewriteTest; break; 1288 case OPT_analyze: 1289 Opts.ProgramAction = frontend::RunAnalysis; break; 1290 case OPT_migrate: 1291 Opts.ProgramAction = frontend::MigrateSource; break; 1292 case OPT_Eonly: 1293 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1294 } 1295 } 1296 1297 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1298 Opts.Plugins.emplace_back(A->getValue(0)); 1299 Opts.ProgramAction = frontend::PluginAction; 1300 Opts.ActionName = A->getValue(); 1301 } 1302 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1303 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1304 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1305 1306 for (const std::string &Arg : 1307 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1308 std::string BlockName; 1309 unsigned MajorVersion; 1310 unsigned MinorVersion; 1311 bool Hashed; 1312 std::string UserInfo; 1313 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1314 MinorVersion, Hashed, UserInfo)) { 1315 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1316 1317 continue; 1318 } 1319 1320 // Add the testing module file extension. 1321 Opts.ModuleFileExtensions.push_back( 1322 std::make_shared<TestModuleFileExtension>( 1323 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1324 } 1325 1326 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1327 Opts.CodeCompletionAt = 1328 ParsedSourceLocation::FromString(A->getValue()); 1329 if (Opts.CodeCompletionAt.FileName.empty()) 1330 Diags.Report(diag::err_drv_invalid_value) 1331 << A->getAsString(Args) << A->getValue(); 1332 } 1333 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1334 1335 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1336 Opts.Plugins = Args.getAllArgValues(OPT_load); 1337 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1338 Opts.ShowHelp = Args.hasArg(OPT_help); 1339 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1340 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1341 Opts.ShowVersion = Args.hasArg(OPT_version); 1342 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1343 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1344 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1345 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1346 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1347 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1348 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1349 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1350 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1351 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1352 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1353 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1354 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1355 // Only the -fmodule-file=<file> form. 1356 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1357 StringRef Val = A->getValue(); 1358 if (Val.find('=') == StringRef::npos) 1359 Opts.ModuleFiles.push_back(Val); 1360 } 1361 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1362 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1363 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1364 1365 Opts.CodeCompleteOpts.IncludeMacros 1366 = Args.hasArg(OPT_code_completion_macros); 1367 Opts.CodeCompleteOpts.IncludeCodePatterns 1368 = Args.hasArg(OPT_code_completion_patterns); 1369 Opts.CodeCompleteOpts.IncludeGlobals 1370 = !Args.hasArg(OPT_no_code_completion_globals); 1371 Opts.CodeCompleteOpts.IncludeBriefComments 1372 = Args.hasArg(OPT_code_completion_brief_comments); 1373 1374 Opts.OverrideRecordLayoutsFile 1375 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1376 Opts.AuxTriple = 1377 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1378 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1379 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1380 1381 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1382 OPT_arcmt_modify, 1383 OPT_arcmt_migrate)) { 1384 switch (A->getOption().getID()) { 1385 default: 1386 llvm_unreachable("missed a case"); 1387 case OPT_arcmt_check: 1388 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1389 break; 1390 case OPT_arcmt_modify: 1391 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1392 break; 1393 case OPT_arcmt_migrate: 1394 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1395 break; 1396 } 1397 } 1398 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1399 Opts.ARCMTMigrateReportOut 1400 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1401 Opts.ARCMTMigrateEmitARCErrors 1402 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1403 1404 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1405 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1406 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1407 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1408 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1409 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1410 if (Args.hasArg(OPT_objcmt_migrate_property)) 1411 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1412 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1413 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1414 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1415 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1416 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1417 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1418 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1419 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1420 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1421 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1422 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1423 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1424 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1425 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1426 if (Args.hasArg(OPT_objcmt_atomic_property)) 1427 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1428 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1429 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1430 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1431 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1432 if (Args.hasArg(OPT_objcmt_migrate_all)) 1433 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1434 1435 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1436 1437 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1438 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1439 Diags.Report(diag::err_drv_argument_not_allowed_with) 1440 << "ARC migration" << "ObjC migration"; 1441 } 1442 1443 InputKind DashX(InputKind::Unknown); 1444 if (const Arg *A = Args.getLastArg(OPT_x)) { 1445 StringRef XValue = A->getValue(); 1446 1447 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1448 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1449 bool Preprocessed = XValue.consume_back("-cpp-output"); 1450 bool ModuleMap = XValue.consume_back("-module-map"); 1451 IsHeaderFile = 1452 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1453 1454 // Principal languages. 1455 DashX = llvm::StringSwitch<InputKind>(XValue) 1456 .Case("c", InputKind::C) 1457 .Case("cl", InputKind::OpenCL) 1458 .Case("cuda", InputKind::CUDA) 1459 .Case("c++", InputKind::CXX) 1460 .Case("objective-c", InputKind::ObjC) 1461 .Case("objective-c++", InputKind::ObjCXX) 1462 .Case("renderscript", InputKind::RenderScript) 1463 .Default(InputKind::Unknown); 1464 1465 // "objc[++]-cpp-output" is an acceptable synonym for 1466 // "objective-c[++]-cpp-output". 1467 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1468 DashX = llvm::StringSwitch<InputKind>(XValue) 1469 .Case("objc", InputKind::ObjC) 1470 .Case("objc++", InputKind::ObjCXX) 1471 .Default(InputKind::Unknown); 1472 1473 // Some special cases cannot be combined with suffixes. 1474 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1475 DashX = llvm::StringSwitch<InputKind>(XValue) 1476 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1477 .Case("assembler-with-cpp", InputKind::Asm) 1478 .Cases("ast", "pcm", 1479 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1480 .Case("ir", InputKind::LLVM_IR) 1481 .Default(InputKind::Unknown); 1482 1483 if (DashX.isUnknown()) 1484 Diags.Report(diag::err_drv_invalid_value) 1485 << A->getAsString(Args) << A->getValue(); 1486 1487 if (Preprocessed) 1488 DashX = DashX.getPreprocessed(); 1489 if (ModuleMap) 1490 DashX = DashX.withFormat(InputKind::ModuleMap); 1491 } 1492 1493 // '-' is the default input if none is given. 1494 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1495 Opts.Inputs.clear(); 1496 if (Inputs.empty()) 1497 Inputs.push_back("-"); 1498 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1499 InputKind IK = DashX; 1500 if (IK.isUnknown()) { 1501 IK = FrontendOptions::getInputKindForExtension( 1502 StringRef(Inputs[i]).rsplit('.').second); 1503 // FIXME: Warn on this? 1504 if (IK.isUnknown()) 1505 IK = InputKind::C; 1506 // FIXME: Remove this hack. 1507 if (i == 0) 1508 DashX = IK; 1509 } 1510 1511 // The -emit-module action implicitly takes a module map. 1512 if (Opts.ProgramAction == frontend::GenerateModule && 1513 IK.getFormat() == InputKind::Source) 1514 IK = IK.withFormat(InputKind::ModuleMap); 1515 1516 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1517 } 1518 1519 return DashX; 1520 } 1521 1522 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1523 void *MainAddr) { 1524 std::string ClangExecutable = 1525 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1526 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1527 1528 // Compute the path to the resource directory. 1529 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1530 SmallString<128> P(Dir); 1531 if (ClangResourceDir != "") 1532 llvm::sys::path::append(P, ClangResourceDir); 1533 else 1534 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1535 "clang", CLANG_VERSION_STRING); 1536 1537 return P.str(); 1538 } 1539 1540 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1541 const std::string &WorkingDir) { 1542 using namespace options; 1543 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1544 Opts.Verbose = Args.hasArg(OPT_v); 1545 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1546 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1547 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1548 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1549 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1550 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1551 1552 // Canonicalize -fmodules-cache-path before storing it. 1553 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1554 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1555 if (WorkingDir.empty()) 1556 llvm::sys::fs::make_absolute(P); 1557 else 1558 llvm::sys::fs::make_absolute(WorkingDir, P); 1559 } 1560 llvm::sys::path::remove_dots(P); 1561 Opts.ModuleCachePath = P.str(); 1562 1563 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1564 // Only the -fmodule-file=<name>=<file> form. 1565 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1566 StringRef Val = A->getValue(); 1567 if (Val.find('=') != StringRef::npos) 1568 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1569 } 1570 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1571 Opts.AddPrebuiltModulePath(A->getValue()); 1572 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1573 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1574 Opts.ModulesValidateDiagnosticOptions = 1575 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1576 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1577 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1578 Opts.ModuleCachePruneInterval = 1579 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1580 Opts.ModuleCachePruneAfter = 1581 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1582 Opts.ModulesValidateOncePerBuildSession = 1583 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1584 Opts.BuildSessionTimestamp = 1585 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1586 Opts.ModulesValidateSystemHeaders = 1587 Args.hasArg(OPT_fmodules_validate_system_headers); 1588 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1589 Opts.ModuleFormat = A->getValue(); 1590 1591 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1592 StringRef MacroDef = A->getValue(); 1593 Opts.ModulesIgnoreMacros.insert( 1594 llvm::CachedHashString(MacroDef.split('=').first)); 1595 } 1596 1597 // Add -I..., -F..., and -index-header-map options in order. 1598 bool IsIndexHeaderMap = false; 1599 bool IsSysrootSpecified = 1600 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1601 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1602 if (A->getOption().matches(OPT_index_header_map)) { 1603 // -index-header-map applies to the next -I or -F. 1604 IsIndexHeaderMap = true; 1605 continue; 1606 } 1607 1608 frontend::IncludeDirGroup Group = 1609 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1610 1611 bool IsFramework = A->getOption().matches(OPT_F); 1612 std::string Path = A->getValue(); 1613 1614 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1615 SmallString<32> Buffer; 1616 llvm::sys::path::append(Buffer, Opts.Sysroot, 1617 llvm::StringRef(A->getValue()).substr(1)); 1618 Path = Buffer.str(); 1619 } 1620 1621 Opts.AddPath(Path, Group, IsFramework, 1622 /*IgnoreSysroot*/ true); 1623 IsIndexHeaderMap = false; 1624 } 1625 1626 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1627 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1628 for (const Arg *A : 1629 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1630 if (A->getOption().matches(OPT_iprefix)) 1631 Prefix = A->getValue(); 1632 else if (A->getOption().matches(OPT_iwithprefix)) 1633 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1634 else 1635 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1636 } 1637 1638 for (const Arg *A : Args.filtered(OPT_idirafter)) 1639 Opts.AddPath(A->getValue(), frontend::After, false, true); 1640 for (const Arg *A : Args.filtered(OPT_iquote)) 1641 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1642 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1643 Opts.AddPath(A->getValue(), frontend::System, false, 1644 !A->getOption().matches(OPT_iwithsysroot)); 1645 for (const Arg *A : Args.filtered(OPT_iframework)) 1646 Opts.AddPath(A->getValue(), frontend::System, true, true); 1647 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot)) 1648 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1649 /*IgnoreSysRoot=*/false); 1650 1651 // Add the paths for the various language specific isystem flags. 1652 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1653 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1654 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1655 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1656 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1657 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1658 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1659 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1660 1661 // Add the internal paths from a driver that detects standard include paths. 1662 for (const Arg *A : 1663 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1664 frontend::IncludeDirGroup Group = frontend::System; 1665 if (A->getOption().matches(OPT_internal_externc_isystem)) 1666 Group = frontend::ExternCSystem; 1667 Opts.AddPath(A->getValue(), Group, false, true); 1668 } 1669 1670 // Add the path prefixes which are implicitly treated as being system headers. 1671 for (const Arg *A : 1672 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1673 Opts.AddSystemHeaderPrefix( 1674 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1675 1676 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1677 Opts.AddVFSOverlayFile(A->getValue()); 1678 } 1679 1680 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1681 const llvm::Triple &T, 1682 PreprocessorOptions &PPOpts, 1683 LangStandard::Kind LangStd) { 1684 // Set some properties which depend solely on the input kind; it would be nice 1685 // to move these to the language standard, and have the driver resolve the 1686 // input kind + language standard. 1687 // 1688 // FIXME: Perhaps a better model would be for a single source file to have 1689 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 1690 // simultaneously active? 1691 if (IK.getLanguage() == InputKind::Asm) { 1692 Opts.AsmPreprocessor = 1; 1693 } else if (IK.isObjectiveC()) { 1694 Opts.ObjC1 = Opts.ObjC2 = 1; 1695 } 1696 1697 if (LangStd == LangStandard::lang_unspecified) { 1698 // Based on the base language, pick one. 1699 switch (IK.getLanguage()) { 1700 case InputKind::Unknown: 1701 case InputKind::LLVM_IR: 1702 llvm_unreachable("Invalid input kind!"); 1703 case InputKind::OpenCL: 1704 LangStd = LangStandard::lang_opencl10; 1705 break; 1706 case InputKind::CUDA: 1707 LangStd = LangStandard::lang_cuda; 1708 break; 1709 case InputKind::Asm: 1710 case InputKind::C: 1711 // The PS4 uses C99 as the default C standard. 1712 if (T.isPS4()) 1713 LangStd = LangStandard::lang_gnu99; 1714 else 1715 LangStd = LangStandard::lang_gnu11; 1716 break; 1717 case InputKind::ObjC: 1718 LangStd = LangStandard::lang_gnu11; 1719 break; 1720 case InputKind::CXX: 1721 case InputKind::ObjCXX: 1722 // The PS4 uses C++11 as the default C++ standard. 1723 if (T.isPS4()) 1724 LangStd = LangStandard::lang_gnucxx11; 1725 else 1726 LangStd = LangStandard::lang_gnucxx98; 1727 break; 1728 case InputKind::RenderScript: 1729 LangStd = LangStandard::lang_c99; 1730 break; 1731 } 1732 } 1733 1734 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1735 Opts.LineComment = Std.hasLineComments(); 1736 Opts.C99 = Std.isC99(); 1737 Opts.C11 = Std.isC11(); 1738 Opts.CPlusPlus = Std.isCPlusPlus(); 1739 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1740 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1741 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1742 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 1743 Opts.Digraphs = Std.hasDigraphs(); 1744 Opts.GNUMode = Std.isGNUMode(); 1745 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 1746 Opts.HexFloats = Std.hasHexFloats(); 1747 Opts.ImplicitInt = Std.hasImplicitInt(); 1748 1749 // Set OpenCL Version. 1750 Opts.OpenCL = Std.isOpenCL(); 1751 if (LangStd == LangStandard::lang_opencl10) 1752 Opts.OpenCLVersion = 100; 1753 else if (LangStd == LangStandard::lang_opencl11) 1754 Opts.OpenCLVersion = 110; 1755 else if (LangStd == LangStandard::lang_opencl12) 1756 Opts.OpenCLVersion = 120; 1757 else if (LangStd == LangStandard::lang_opencl20) 1758 Opts.OpenCLVersion = 200; 1759 1760 // OpenCL has some additional defaults. 1761 if (Opts.OpenCL) { 1762 Opts.AltiVec = 0; 1763 Opts.ZVector = 0; 1764 Opts.LaxVectorConversions = 0; 1765 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 1766 Opts.NativeHalfType = 1; 1767 Opts.NativeHalfArgsAndReturns = 1; 1768 // Include default header file for OpenCL. 1769 if (Opts.IncludeDefaultHeader) { 1770 PPOpts.Includes.push_back("opencl-c.h"); 1771 } 1772 } 1773 1774 Opts.CUDA = IK.getLanguage() == InputKind::CUDA; 1775 if (Opts.CUDA) 1776 // Set default FP_CONTRACT to FAST. 1777 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 1778 1779 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 1780 if (Opts.RenderScript) { 1781 Opts.NativeHalfType = 1; 1782 Opts.NativeHalfArgsAndReturns = 1; 1783 } 1784 1785 // OpenCL and C++ both have bool, true, false keywords. 1786 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1787 1788 // OpenCL has half keyword 1789 Opts.Half = Opts.OpenCL; 1790 1791 // C++ has wchar_t keyword. 1792 Opts.WChar = Opts.CPlusPlus; 1793 1794 Opts.GNUKeywords = Opts.GNUMode; 1795 Opts.CXXOperatorNames = Opts.CPlusPlus; 1796 1797 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1798 1799 Opts.DollarIdents = !Opts.AsmPreprocessor; 1800 } 1801 1802 /// Attempt to parse a visibility value out of the given argument. 1803 static Visibility parseVisibility(Arg *arg, ArgList &args, 1804 DiagnosticsEngine &diags) { 1805 StringRef value = arg->getValue(); 1806 if (value == "default") { 1807 return DefaultVisibility; 1808 } else if (value == "hidden" || value == "internal") { 1809 return HiddenVisibility; 1810 } else if (value == "protected") { 1811 // FIXME: diagnose if target does not support protected visibility 1812 return ProtectedVisibility; 1813 } 1814 1815 diags.Report(diag::err_drv_invalid_value) 1816 << arg->getAsString(args) << value; 1817 return DefaultVisibility; 1818 } 1819 1820 /// Check if input file kind and language standard are compatible. 1821 static bool IsInputCompatibleWithStandard(InputKind IK, 1822 const LangStandard &S) { 1823 switch (IK.getLanguage()) { 1824 case InputKind::Unknown: 1825 case InputKind::LLVM_IR: 1826 llvm_unreachable("should not parse language flags for this input"); 1827 1828 case InputKind::C: 1829 case InputKind::ObjC: 1830 case InputKind::RenderScript: 1831 return S.getLanguage() == InputKind::C; 1832 1833 case InputKind::OpenCL: 1834 return S.getLanguage() == InputKind::OpenCL; 1835 1836 case InputKind::CXX: 1837 case InputKind::ObjCXX: 1838 return S.getLanguage() == InputKind::CXX; 1839 1840 case InputKind::CUDA: 1841 // FIXME: What -std= values should be permitted for CUDA compilations? 1842 return S.getLanguage() == InputKind::CUDA || 1843 S.getLanguage() == InputKind::CXX; 1844 1845 case InputKind::Asm: 1846 // Accept (and ignore) all -std= values. 1847 // FIXME: The -std= value is not ignored; it affects the tokenization 1848 // and preprocessing rules if we're preprocessing this asm input. 1849 return true; 1850 } 1851 1852 llvm_unreachable("unexpected input language"); 1853 } 1854 1855 /// Get language name for given input kind. 1856 static const StringRef GetInputKindName(InputKind IK) { 1857 switch (IK.getLanguage()) { 1858 case InputKind::C: 1859 return "C"; 1860 case InputKind::ObjC: 1861 return "Objective-C"; 1862 case InputKind::CXX: 1863 return "C++"; 1864 case InputKind::ObjCXX: 1865 return "Objective-C++"; 1866 case InputKind::OpenCL: 1867 return "OpenCL"; 1868 case InputKind::CUDA: 1869 return "CUDA"; 1870 case InputKind::RenderScript: 1871 return "RenderScript"; 1872 1873 case InputKind::Asm: 1874 return "Asm"; 1875 case InputKind::LLVM_IR: 1876 return "LLVM IR"; 1877 1878 case InputKind::Unknown: 1879 break; 1880 } 1881 llvm_unreachable("unknown input language"); 1882 } 1883 1884 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1885 const TargetOptions &TargetOpts, 1886 PreprocessorOptions &PPOpts, 1887 DiagnosticsEngine &Diags) { 1888 // FIXME: Cleanup per-file based stuff. 1889 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1890 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1891 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1892 #define LANGSTANDARD(id, name, lang, desc, features) \ 1893 .Case(name, LangStandard::lang_##id) 1894 #define LANGSTANDARD_ALIAS(id, alias) \ 1895 .Case(alias, LangStandard::lang_##id) 1896 #include "clang/Frontend/LangStandards.def" 1897 .Default(LangStandard::lang_unspecified); 1898 if (LangStd == LangStandard::lang_unspecified) { 1899 Diags.Report(diag::err_drv_invalid_value) 1900 << A->getAsString(Args) << A->getValue(); 1901 // Report supported standards with short description. 1902 for (unsigned KindValue = 0; 1903 KindValue != LangStandard::lang_unspecified; 1904 ++KindValue) { 1905 const LangStandard &Std = LangStandard::getLangStandardForKind( 1906 static_cast<LangStandard::Kind>(KindValue)); 1907 if (IsInputCompatibleWithStandard(IK, Std)) { 1908 auto Diag = Diags.Report(diag::note_drv_use_standard); 1909 Diag << Std.getName() << Std.getDescription(); 1910 unsigned NumAliases = 0; 1911 #define LANGSTANDARD(id, name, lang, desc, features) 1912 #define LANGSTANDARD_ALIAS(id, alias) \ 1913 if (KindValue == LangStandard::lang_##id) ++NumAliases; 1914 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1915 #include "clang/Frontend/LangStandards.def" 1916 Diag << NumAliases; 1917 #define LANGSTANDARD(id, name, lang, desc, features) 1918 #define LANGSTANDARD_ALIAS(id, alias) \ 1919 if (KindValue == LangStandard::lang_##id) Diag << alias; 1920 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1921 #include "clang/Frontend/LangStandards.def" 1922 } 1923 } 1924 } else { 1925 // Valid standard, check to make sure language and standard are 1926 // compatible. 1927 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1928 if (!IsInputCompatibleWithStandard(IK, Std)) { 1929 Diags.Report(diag::err_drv_argument_not_allowed_with) 1930 << A->getAsString(Args) << GetInputKindName(IK); 1931 } 1932 } 1933 } 1934 1935 // -cl-std only applies for OpenCL language standards. 1936 // Override the -std option in this case. 1937 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1938 LangStandard::Kind OpenCLLangStd 1939 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1940 .Cases("cl", "CL", LangStandard::lang_opencl10) 1941 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1942 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1943 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1944 .Default(LangStandard::lang_unspecified); 1945 1946 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1947 Diags.Report(diag::err_drv_invalid_value) 1948 << A->getAsString(Args) << A->getValue(); 1949 } 1950 else 1951 LangStd = OpenCLLangStd; 1952 } 1953 1954 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1955 1956 llvm::Triple T(TargetOpts.Triple); 1957 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1958 1959 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1960 // This option should be deprecated for CL > 1.0 because 1961 // this option was added for compatibility with OpenCL 1.0. 1962 if (Args.getLastArg(OPT_cl_strict_aliasing) 1963 && Opts.OpenCLVersion > 100) { 1964 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1965 std::string(".") + 1966 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1967 Diags.Report(diag::warn_option_invalid_ocl_version) 1968 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1969 } 1970 1971 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1972 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1973 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1974 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1975 // name, as it doesn't seem a useful distinction. 1976 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1977 Opts.GNUKeywords); 1978 1979 if (Args.hasArg(OPT_fno_operator_names)) 1980 Opts.CXXOperatorNames = 0; 1981 1982 if (Args.hasArg(OPT_fcuda_is_device)) 1983 Opts.CUDAIsDevice = 1; 1984 1985 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1986 Opts.CUDAAllowVariadicFunctions = 1; 1987 1988 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1989 Opts.CUDAHostDeviceConstexpr = 0; 1990 1991 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1992 Opts.CUDADeviceFlushDenormalsToZero = 1; 1993 1994 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1995 Opts.CUDADeviceApproxTranscendentals = 1; 1996 1997 if (Opts.ObjC1) { 1998 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1999 StringRef value = arg->getValue(); 2000 if (Opts.ObjCRuntime.tryParse(value)) 2001 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2002 } 2003 2004 if (Args.hasArg(OPT_fobjc_gc_only)) 2005 Opts.setGC(LangOptions::GCOnly); 2006 else if (Args.hasArg(OPT_fobjc_gc)) 2007 Opts.setGC(LangOptions::HybridGC); 2008 else if (Args.hasArg(OPT_fobjc_arc)) { 2009 Opts.ObjCAutoRefCount = 1; 2010 if (!Opts.ObjCRuntime.allowsARC()) 2011 Diags.Report(diag::err_arc_unsupported_on_runtime); 2012 } 2013 2014 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2015 // whether the feature is actually enabled. This is predominantly 2016 // determined by -fobjc-runtime, but we allow it to be overridden 2017 // from the command line for testing purposes. 2018 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2019 Opts.ObjCWeakRuntime = 1; 2020 else 2021 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2022 2023 // ObjCWeak determines whether __weak is actually enabled. 2024 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2025 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2026 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2027 assert(!Opts.ObjCWeak); 2028 } else if (Opts.getGC() != LangOptions::NonGC) { 2029 Diags.Report(diag::err_objc_weak_with_gc); 2030 } else if (!Opts.ObjCWeakRuntime) { 2031 Diags.Report(diag::err_objc_weak_unsupported); 2032 } else { 2033 Opts.ObjCWeak = 1; 2034 } 2035 } else if (Opts.ObjCAutoRefCount) { 2036 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2037 } 2038 2039 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2040 Opts.ObjCInferRelatedResultType = 0; 2041 2042 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2043 Opts.ObjCSubscriptingLegacyRuntime = 2044 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2045 } 2046 2047 if (Args.hasArg(OPT_fgnu89_inline)) { 2048 if (Opts.CPlusPlus) 2049 Diags.Report(diag::err_drv_argument_not_allowed_with) 2050 << "-fgnu89-inline" << GetInputKindName(IK); 2051 else 2052 Opts.GNUInline = 1; 2053 } 2054 2055 if (Args.hasArg(OPT_fapple_kext)) { 2056 if (!Opts.CPlusPlus) 2057 Diags.Report(diag::warn_c_kext); 2058 else 2059 Opts.AppleKext = 1; 2060 } 2061 2062 if (Args.hasArg(OPT_print_ivar_layout)) 2063 Opts.ObjCGCBitmapPrint = 1; 2064 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2065 Opts.NoConstantCFStrings = 1; 2066 2067 if (Args.hasArg(OPT_fzvector)) 2068 Opts.ZVector = 1; 2069 2070 if (Args.hasArg(OPT_pthread)) 2071 Opts.POSIXThreads = 1; 2072 2073 // The value-visibility mode defaults to "default". 2074 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2075 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2076 } else { 2077 Opts.setValueVisibilityMode(DefaultVisibility); 2078 } 2079 2080 // The type-visibility mode defaults to the value-visibility mode. 2081 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2082 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2083 } else { 2084 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2085 } 2086 2087 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2088 Opts.InlineVisibilityHidden = 1; 2089 2090 if (Args.hasArg(OPT_ftrapv)) { 2091 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2092 // Set the handler, if one is specified. 2093 Opts.OverflowHandler = 2094 Args.getLastArgValue(OPT_ftrapv_handler); 2095 } 2096 else if (Args.hasArg(OPT_fwrapv)) 2097 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2098 2099 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2100 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2101 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2102 Opts.MSCompatibilityVersion = 0; 2103 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2104 VersionTuple VT; 2105 if (VT.tryParse(A->getValue())) 2106 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2107 << A->getValue(); 2108 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2109 VT.getMinor().getValueOr(0) * 100000 + 2110 VT.getSubminor().getValueOr(0); 2111 } 2112 2113 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 2114 // is specified, or -std is set to a conforming mode. 2115 // Trigraphs are disabled by default in c++1z onwards. 2116 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 2117 Opts.Trigraphs = 2118 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2119 2120 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2121 OPT_fno_dollars_in_identifiers, 2122 Opts.DollarIdents); 2123 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2124 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2125 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2126 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2127 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2128 Opts.ConstStrings); 2129 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2130 Opts.LaxVectorConversions = 0; 2131 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2132 Opts.ThreadsafeStatics = 0; 2133 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2134 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2135 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2136 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 2137 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2138 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2139 2140 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2141 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2142 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2143 && Opts.OpenCLVersion >= 200); 2144 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2145 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2146 2147 // Enable [[]] attributes in C++11 by default. 2148 Opts.DoubleSquareBracketAttributes = 2149 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2150 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11); 2151 2152 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2153 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2154 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2155 Opts.ModulesDeclUse = 2156 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2157 Opts.ModulesLocalVisibility = 2158 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2159 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2160 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2161 Opts.ModulesSearchAll = Opts.Modules && 2162 !Args.hasArg(OPT_fno_modules_search_all) && 2163 Args.hasArg(OPT_fmodules_search_all); 2164 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2165 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2166 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2167 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2168 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2169 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2170 .Case("char", 1) 2171 .Case("short", 2) 2172 .Case("int", 4) 2173 .Default(0); 2174 if (Opts.WCharSize == 0) 2175 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2176 } 2177 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2178 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2179 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2180 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2181 if (!Opts.NoBuiltin) 2182 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2183 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2184 Opts.RelaxedTemplateTemplateArgs = 2185 Args.hasArg(OPT_frelaxed_template_template_args); 2186 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2187 Opts.AlignedAllocation = 2188 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2189 Opts.AlignedAllocation); 2190 Opts.AlignedAllocationUnavailable = 2191 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2192 Opts.NewAlignOverride = 2193 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2194 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2195 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2196 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2197 << A->getValue(); 2198 Opts.NewAlignOverride = 0; 2199 } 2200 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2201 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2202 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2203 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2204 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2205 Opts.InstantiationDepth = 2206 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2207 Opts.ArrowDepth = 2208 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2209 Opts.ConstexprCallDepth = 2210 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2211 Opts.ConstexprStepLimit = 2212 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2213 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2214 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2215 Opts.NumLargeByValueCopy = 2216 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2217 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2218 Opts.ObjCConstantStringClass = 2219 Args.getLastArgValue(OPT_fconstant_string_class); 2220 Opts.ObjCDefaultSynthProperties = 2221 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2222 Opts.EncodeExtendedBlockSig = 2223 Args.hasArg(OPT_fencode_extended_block_signature); 2224 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2225 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2226 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2227 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2228 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2229 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2230 Opts.Static = Args.hasArg(OPT_static_define); 2231 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2232 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2233 || Args.hasArg(OPT_fdump_record_layouts); 2234 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2235 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2236 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2237 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2238 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2239 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2240 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2241 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2242 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2243 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2244 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2245 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2246 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2247 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2248 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2249 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2250 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2251 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2252 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2253 // is enabled. 2254 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2255 | Opts.NativeHalfArgsAndReturns; 2256 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2257 2258 // __declspec is enabled by default for the PS4 by the driver, and also 2259 // enabled for Microsoft Extensions or Borland Extensions, here. 2260 // 2261 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2262 // CUDA extension. However, it is required for supporting 2263 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2264 // been rewritten in terms of something more generic, remove the Opts.CUDA 2265 // term here. 2266 Opts.DeclSpecKeyword = 2267 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2268 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2269 2270 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2271 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2272 .Case("target", LangOptions::ASMM_Target) 2273 .Case("no", LangOptions::ASMM_Off) 2274 .Case("yes", LangOptions::ASMM_On) 2275 .Default(255)) { 2276 default: 2277 Diags.Report(diag::err_drv_invalid_value) 2278 << "-faddress-space-map-mangling=" << A->getValue(); 2279 break; 2280 case LangOptions::ASMM_Target: 2281 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2282 break; 2283 case LangOptions::ASMM_On: 2284 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2285 break; 2286 case LangOptions::ASMM_Off: 2287 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2288 break; 2289 } 2290 } 2291 2292 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2293 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2294 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2295 A->getValue()) 2296 .Case("single", 2297 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2298 .Case("multiple", 2299 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2300 .Case("virtual", 2301 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2302 .Default(LangOptions::PPTMK_BestCase); 2303 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2304 Diags.Report(diag::err_drv_invalid_value) 2305 << "-fms-memptr-rep=" << A->getValue(); 2306 2307 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2308 } 2309 2310 // Check for MS default calling conventions being specified. 2311 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2312 LangOptions::DefaultCallingConvention DefaultCC = 2313 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2314 .Case("cdecl", LangOptions::DCC_CDecl) 2315 .Case("fastcall", LangOptions::DCC_FastCall) 2316 .Case("stdcall", LangOptions::DCC_StdCall) 2317 .Case("vectorcall", LangOptions::DCC_VectorCall) 2318 .Case("regcall", LangOptions::DCC_RegCall) 2319 .Default(LangOptions::DCC_None); 2320 if (DefaultCC == LangOptions::DCC_None) 2321 Diags.Report(diag::err_drv_invalid_value) 2322 << "-fdefault-calling-conv=" << A->getValue(); 2323 2324 llvm::Triple T(TargetOpts.Triple); 2325 llvm::Triple::ArchType Arch = T.getArch(); 2326 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2327 DefaultCC == LangOptions::DCC_StdCall) && 2328 Arch != llvm::Triple::x86; 2329 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2330 DefaultCC == LangOptions::DCC_RegCall) && 2331 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2332 if (emitError) 2333 Diags.Report(diag::err_drv_argument_not_allowed_with) 2334 << A->getSpelling() << T.getTriple(); 2335 else 2336 Opts.setDefaultCallingConv(DefaultCC); 2337 } 2338 2339 // -mrtd option 2340 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2341 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2342 Diags.Report(diag::err_drv_argument_not_allowed_with) 2343 << A->getSpelling() << "-fdefault-calling-conv"; 2344 else { 2345 llvm::Triple T(TargetOpts.Triple); 2346 if (T.getArch() != llvm::Triple::x86) 2347 Diags.Report(diag::err_drv_argument_not_allowed_with) 2348 << A->getSpelling() << T.getTriple(); 2349 else 2350 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2351 } 2352 } 2353 2354 // Check if -fopenmp is specified. 2355 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2356 Opts.OpenMPUseTLS = 2357 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2358 Opts.OpenMPIsDevice = 2359 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2360 2361 if (Opts.OpenMP) { 2362 int Version = 2363 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2364 if (Version != 0) 2365 Opts.OpenMP = Version; 2366 // Provide diagnostic when a given target is not expected to be an OpenMP 2367 // device or host. 2368 if (!Opts.OpenMPIsDevice) { 2369 switch (T.getArch()) { 2370 default: 2371 break; 2372 // Add unsupported host targets here: 2373 case llvm::Triple::nvptx: 2374 case llvm::Triple::nvptx64: 2375 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2376 << TargetOpts.Triple; 2377 break; 2378 } 2379 } 2380 } 2381 2382 // Set the flag to prevent the implementation from emitting device exception 2383 // handling code for those requiring so. 2384 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2385 Opts.Exceptions = 0; 2386 Opts.CXXExceptions = 0; 2387 } 2388 2389 // Get the OpenMP target triples if any. 2390 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2391 2392 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2393 llvm::Triple TT(A->getValue(i)); 2394 2395 if (TT.getArch() == llvm::Triple::UnknownArch || 2396 !(TT.getArch() == llvm::Triple::ppc || 2397 TT.getArch() == llvm::Triple::ppc64 || 2398 TT.getArch() == llvm::Triple::ppc64le || 2399 TT.getArch() == llvm::Triple::nvptx || 2400 TT.getArch() == llvm::Triple::nvptx64 || 2401 TT.getArch() == llvm::Triple::x86 || 2402 TT.getArch() == llvm::Triple::x86_64)) 2403 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2404 else 2405 Opts.OMPTargetTriples.push_back(TT); 2406 } 2407 } 2408 2409 // Get OpenMP host file path if any and report if a non existent file is 2410 // found 2411 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2412 Opts.OMPHostIRFile = A->getValue(); 2413 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2414 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2415 << Opts.OMPHostIRFile; 2416 } 2417 2418 // Record whether the __DEPRECATED define was requested. 2419 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2420 OPT_fno_deprecated_macro, 2421 Opts.Deprecated); 2422 2423 // FIXME: Eliminate this dependency. 2424 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2425 OptSize = getOptimizationLevelSize(Args); 2426 Opts.Optimize = Opt != 0; 2427 Opts.OptimizeSize = OptSize != 0; 2428 2429 // This is the __NO_INLINE__ define, which just depends on things like the 2430 // optimization level and -fno-inline, not actually whether the backend has 2431 // inlining enabled. 2432 Opts.NoInlineDefine = !Opts.Optimize; 2433 if (Arg *InlineArg = Args.getLastArg( 2434 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2435 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2436 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2437 Opts.NoInlineDefine = true; 2438 2439 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2440 Args.hasArg(OPT_cl_fast_relaxed_math); 2441 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2442 Args.hasArg(OPT_cl_finite_math_only) || 2443 Args.hasArg(OPT_cl_fast_relaxed_math); 2444 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2445 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2446 Args.hasArg(OPT_cl_fast_relaxed_math); 2447 2448 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2449 StringRef Val = A->getValue(); 2450 if (Val == "fast") 2451 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2452 else if (Val == "on") 2453 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2454 else if (Val == "off") 2455 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2456 else 2457 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2458 } 2459 2460 Opts.RetainCommentsFromSystemHeaders = 2461 Args.hasArg(OPT_fretain_comments_from_system_headers); 2462 2463 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2464 switch (SSP) { 2465 default: 2466 Diags.Report(diag::err_drv_invalid_value) 2467 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2468 break; 2469 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2470 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2471 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2472 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2473 } 2474 2475 // Parse -fsanitize= arguments. 2476 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2477 Diags, Opts.Sanitize); 2478 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2479 Opts.SanitizeAddressFieldPadding = 2480 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2481 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2482 2483 // -fxray-instrument 2484 Opts.XRayInstrument = 2485 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2486 2487 // -fxray-{always,never}-instrument= filenames. 2488 Opts.XRayAlwaysInstrumentFiles = 2489 Args.getAllArgValues(OPT_fxray_always_instrument); 2490 Opts.XRayNeverInstrumentFiles = 2491 Args.getAllArgValues(OPT_fxray_never_instrument); 2492 2493 // -fallow-editor-placeholders 2494 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2495 } 2496 2497 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 2498 switch (Action) { 2499 case frontend::ASTDeclList: 2500 case frontend::ASTDump: 2501 case frontend::ASTPrint: 2502 case frontend::ASTView: 2503 case frontend::EmitAssembly: 2504 case frontend::EmitBC: 2505 case frontend::EmitHTML: 2506 case frontend::EmitLLVM: 2507 case frontend::EmitLLVMOnly: 2508 case frontend::EmitCodeGenOnly: 2509 case frontend::EmitObj: 2510 case frontend::FixIt: 2511 case frontend::GenerateModule: 2512 case frontend::GenerateModuleInterface: 2513 case frontend::GeneratePCH: 2514 case frontend::GeneratePTH: 2515 case frontend::ParseSyntaxOnly: 2516 case frontend::ModuleFileInfo: 2517 case frontend::VerifyPCH: 2518 case frontend::PluginAction: 2519 case frontend::PrintDeclContext: 2520 case frontend::RewriteObjC: 2521 case frontend::RewriteTest: 2522 case frontend::RunAnalysis: 2523 case frontend::MigrateSource: 2524 return false; 2525 2526 case frontend::DumpRawTokens: 2527 case frontend::DumpTokens: 2528 case frontend::InitOnly: 2529 case frontend::PrintPreamble: 2530 case frontend::PrintPreprocessedInput: 2531 case frontend::RewriteMacros: 2532 case frontend::RunPreprocessorOnly: 2533 return true; 2534 } 2535 llvm_unreachable("invalid frontend action"); 2536 } 2537 2538 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2539 FileManager &FileMgr, 2540 DiagnosticsEngine &Diags, 2541 frontend::ActionKind Action) { 2542 using namespace options; 2543 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2544 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2545 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2546 Opts.TokenCache = A->getValue(); 2547 else 2548 Opts.TokenCache = Opts.ImplicitPTHInclude; 2549 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2550 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2551 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2552 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 2553 2554 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2555 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2556 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2557 2558 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2559 StringRef Value(A->getValue()); 2560 size_t Comma = Value.find(','); 2561 unsigned Bytes = 0; 2562 unsigned EndOfLine = 0; 2563 2564 if (Comma == StringRef::npos || 2565 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2566 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2567 Diags.Report(diag::err_drv_preamble_format); 2568 else { 2569 Opts.PrecompiledPreambleBytes.first = Bytes; 2570 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2571 } 2572 } 2573 2574 // Add macros from the command line. 2575 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2576 if (A->getOption().matches(OPT_D)) 2577 Opts.addMacroDef(A->getValue()); 2578 else 2579 Opts.addMacroUndef(A->getValue()); 2580 } 2581 2582 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2583 2584 // Add the ordered list of -includes. 2585 for (const Arg *A : Args.filtered(OPT_include)) 2586 Opts.Includes.emplace_back(A->getValue()); 2587 2588 for (const Arg *A : Args.filtered(OPT_chain_include)) 2589 Opts.ChainedIncludes.emplace_back(A->getValue()); 2590 2591 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2592 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2593 2594 if (Split.second.empty()) { 2595 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2596 continue; 2597 } 2598 2599 Opts.addRemappedFile(Split.first, Split.second); 2600 } 2601 2602 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2603 StringRef Name = A->getValue(); 2604 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2605 .Case("libc++", ARCXX_libcxx) 2606 .Case("libstdc++", ARCXX_libstdcxx) 2607 .Case("none", ARCXX_nolib) 2608 .Default(~0U); 2609 if (Library == ~0U) 2610 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2611 else 2612 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2613 } 2614 2615 // Always avoid lexing editor placeholders when we're just running the 2616 // preprocessor as we never want to emit the 2617 // "editor placeholder in source file" error in PP only mode. 2618 if (isStrictlyPreprocessorAction(Action)) 2619 Opts.LexEditorPlaceholders = false; 2620 } 2621 2622 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2623 ArgList &Args, 2624 frontend::ActionKind Action) { 2625 using namespace options; 2626 2627 if (isStrictlyPreprocessorAction(Action)) 2628 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2629 else 2630 Opts.ShowCPP = 0; 2631 2632 Opts.ShowComments = Args.hasArg(OPT_C); 2633 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2634 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2635 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2636 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2637 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2638 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 2639 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2640 } 2641 2642 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2643 DiagnosticsEngine &Diags) { 2644 using namespace options; 2645 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2646 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2647 StringRef Value = A->getValue(); 2648 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2649 .Case("default", llvm::EABI::Default) 2650 .Case("4", llvm::EABI::EABI4) 2651 .Case("5", llvm::EABI::EABI5) 2652 .Case("gnu", llvm::EABI::GNU) 2653 .Default(llvm::EABI::Unknown); 2654 if (EABIVersion == llvm::EABI::Unknown) 2655 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2656 << Value; 2657 else 2658 Opts.EABIVersion = EABIVersion; 2659 } 2660 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2661 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2662 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2663 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2664 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2665 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2666 // Use the default target triple if unspecified. 2667 if (Opts.Triple.empty()) 2668 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2669 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2670 } 2671 2672 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2673 const char *const *ArgBegin, 2674 const char *const *ArgEnd, 2675 DiagnosticsEngine &Diags) { 2676 bool Success = true; 2677 2678 // Parse the arguments. 2679 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2680 const unsigned IncludedFlagsBitmask = options::CC1Option; 2681 unsigned MissingArgIndex, MissingArgCount; 2682 InputArgList Args = 2683 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2684 MissingArgCount, IncludedFlagsBitmask); 2685 LangOptions &LangOpts = *Res.getLangOpts(); 2686 2687 // Check for missing argument error. 2688 if (MissingArgCount) { 2689 Diags.Report(diag::err_drv_missing_argument) 2690 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2691 Success = false; 2692 } 2693 2694 // Issue errors on unknown arguments. 2695 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2696 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2697 Success = false; 2698 } 2699 2700 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2701 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2702 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2703 Success &= 2704 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2705 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2706 ParseCommentArgs(LangOpts.CommentOpts, Args); 2707 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2708 // FIXME: We shouldn't have to pass the DashX option around here 2709 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2710 LangOpts.IsHeaderFile); 2711 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2712 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2713 Res.getTargetOpts()); 2714 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2715 Res.getFileSystemOpts().WorkingDir); 2716 if (DashX.getFormat() == InputKind::Precompiled || 2717 DashX.getLanguage() == InputKind::LLVM_IR) { 2718 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2719 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2720 // what the input type is. 2721 if (Args.hasArg(OPT_fobjc_arc)) 2722 LangOpts.ObjCAutoRefCount = 1; 2723 // PIClevel and PIELevel are needed during code generation and this should be 2724 // set regardless of the input type. 2725 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2726 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2727 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2728 Diags, LangOpts.Sanitize); 2729 } else { 2730 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2731 // FIXME: Should we really be calling this for an InputKind::Asm input? 2732 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2733 Res.getPreprocessorOpts(), Diags); 2734 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2735 LangOpts.ObjCExceptions = 1; 2736 } 2737 2738 if (LangOpts.CUDA) { 2739 // During CUDA device-side compilation, the aux triple is the 2740 // triple used for host compilation. 2741 if (LangOpts.CUDAIsDevice) 2742 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2743 } 2744 2745 // Set the triple of the host for OpenMP device compile. 2746 if (LangOpts.OpenMPIsDevice) 2747 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2748 2749 // FIXME: Override value name discarding when asan or msan is used because the 2750 // backend passes depend on the name of the alloca in order to print out 2751 // names. 2752 Res.getCodeGenOpts().DiscardValueNames &= 2753 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2754 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2755 2756 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2757 // PCH file and find the original header name. Remove the need to do that in 2758 // ParsePreprocessorArgs and remove the FileManager 2759 // parameters from the function and the "FileManager.h" #include. 2760 FileManager FileMgr(Res.getFileSystemOpts()); 2761 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags, 2762 Res.getFrontendOpts().ProgramAction); 2763 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2764 Res.getFrontendOpts().ProgramAction); 2765 2766 // Turn on -Wspir-compat for SPIR target. 2767 llvm::Triple T(Res.getTargetOpts().Triple); 2768 auto Arch = T.getArch(); 2769 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2770 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2771 } 2772 2773 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 2774 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 2775 !Res.getLangOpts()->Sanitize.empty()) { 2776 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 2777 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 2778 } 2779 return Success; 2780 } 2781 2782 std::string CompilerInvocation::getModuleHash() const { 2783 // Note: For QoI reasons, the things we use as a hash here should all be 2784 // dumped via the -module-info flag. 2785 using llvm::hash_code; 2786 using llvm::hash_value; 2787 using llvm::hash_combine; 2788 2789 // Start the signature with the compiler version. 2790 // FIXME: We'd rather use something more cryptographically sound than 2791 // CityHash, but this will do for now. 2792 hash_code code = hash_value(getClangFullRepositoryVersion()); 2793 2794 // Extend the signature with the language options 2795 #define LANGOPT(Name, Bits, Default, Description) \ 2796 code = hash_combine(code, LangOpts->Name); 2797 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2798 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2799 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2800 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2801 #include "clang/Basic/LangOptions.def" 2802 2803 for (StringRef Feature : LangOpts->ModuleFeatures) 2804 code = hash_combine(code, Feature); 2805 2806 // Extend the signature with the target options. 2807 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2808 TargetOpts->ABI); 2809 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2810 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2811 2812 // Extend the signature with preprocessor options. 2813 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2814 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2815 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2816 2817 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2818 I = getPreprocessorOpts().Macros.begin(), 2819 IEnd = getPreprocessorOpts().Macros.end(); 2820 I != IEnd; ++I) { 2821 // If we're supposed to ignore this macro for the purposes of modules, 2822 // don't put it into the hash. 2823 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2824 // Check whether we're ignoring this macro. 2825 StringRef MacroDef = I->first; 2826 if (hsOpts.ModulesIgnoreMacros.count( 2827 llvm::CachedHashString(MacroDef.split('=').first))) 2828 continue; 2829 } 2830 2831 code = hash_combine(code, I->first, I->second); 2832 } 2833 2834 // Extend the signature with the sysroot and other header search options. 2835 code = hash_combine(code, hsOpts.Sysroot, 2836 hsOpts.ModuleFormat, 2837 hsOpts.UseDebugInfo, 2838 hsOpts.UseBuiltinIncludes, 2839 hsOpts.UseStandardSystemIncludes, 2840 hsOpts.UseStandardCXXIncludes, 2841 hsOpts.UseLibcxx, 2842 hsOpts.ModulesValidateDiagnosticOptions); 2843 code = hash_combine(code, hsOpts.ResourceDir); 2844 2845 // Extend the signature with the user build path. 2846 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2847 2848 // Extend the signature with the module file extensions. 2849 const FrontendOptions &frontendOpts = getFrontendOpts(); 2850 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2851 code = ext->hashExtension(code); 2852 } 2853 2854 // Extend the signature with the enabled sanitizers, if at least one is 2855 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 2856 SanitizerSet SanHash = LangOpts->Sanitize; 2857 SanHash.clear(getPPTransparentSanitizers()); 2858 if (!SanHash.empty()) 2859 code = hash_combine(code, SanHash.Mask); 2860 2861 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2862 } 2863 2864 namespace clang { 2865 2866 template<typename IntTy> 2867 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2868 IntTy Default, 2869 DiagnosticsEngine *Diags) { 2870 IntTy Res = Default; 2871 if (Arg *A = Args.getLastArg(Id)) { 2872 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2873 if (Diags) 2874 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2875 << A->getValue(); 2876 } 2877 } 2878 return Res; 2879 } 2880 2881 2882 // Declared in clang/Frontend/Utils.h. 2883 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2884 DiagnosticsEngine *Diags) { 2885 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2886 } 2887 2888 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2889 uint64_t Default, 2890 DiagnosticsEngine *Diags) { 2891 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2892 } 2893 2894 void BuryPointer(const void *Ptr) { 2895 // This function may be called only a small fixed amount of times per each 2896 // invocation, otherwise we do actually have a leak which we want to report. 2897 // If this function is called more than kGraveYardMaxSize times, the pointers 2898 // will not be properly buried and a leak detector will report a leak, which 2899 // is what we want in such case. 2900 static const size_t kGraveYardMaxSize = 16; 2901 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2902 static std::atomic<unsigned> GraveYardSize; 2903 unsigned Idx = GraveYardSize++; 2904 if (Idx >= kGraveYardMaxSize) 2905 return; 2906 GraveYard[Idx] = Ptr; 2907 } 2908 2909 IntrusiveRefCntPtr<vfs::FileSystem> 2910 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2911 DiagnosticsEngine &Diags) { 2912 return createVFSFromCompilerInvocation(CI, Diags, vfs::getRealFileSystem()); 2913 } 2914 2915 IntrusiveRefCntPtr<vfs::FileSystem> 2916 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2917 DiagnosticsEngine &Diags, 2918 IntrusiveRefCntPtr<vfs::FileSystem> BaseFS) { 2919 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2920 return BaseFS; 2921 2922 IntrusiveRefCntPtr<vfs::OverlayFileSystem> Overlay( 2923 new vfs::OverlayFileSystem(BaseFS)); 2924 // earlier vfs files are on the bottom 2925 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2926 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2927 BaseFS->getBufferForFile(File); 2928 if (!Buffer) { 2929 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2930 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2931 } 2932 2933 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2934 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2935 if (!FS.get()) { 2936 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2937 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2938 } 2939 Overlay->pushOverlay(FS); 2940 } 2941 return Overlay; 2942 } 2943 } // end namespace clang 2944