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