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 : RefCountedBase<CompilerInvocation>(), 64 LangOpts(new LangOptions(*X.getLangOpts())), 65 TargetOpts(new TargetOptions(X.getTargetOpts())), 66 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 67 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 68 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 69 70 CompilerInvocationBase::~CompilerInvocationBase() {} 71 72 //===----------------------------------------------------------------------===// 73 // Deserialization (from args) 74 //===----------------------------------------------------------------------===// 75 76 using namespace clang::driver; 77 using namespace clang::driver::options; 78 using namespace llvm::opt; 79 80 // 81 82 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 83 DiagnosticsEngine &Diags) { 84 unsigned DefaultOpt = 0; 85 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 86 DefaultOpt = 2; 87 88 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 89 if (A->getOption().matches(options::OPT_O0)) 90 return 0; 91 92 if (A->getOption().matches(options::OPT_Ofast)) 93 return 3; 94 95 assert (A->getOption().matches(options::OPT_O)); 96 97 StringRef S(A->getValue()); 98 if (S == "s" || S == "z" || S.empty()) 99 return 2; 100 101 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 102 } 103 104 return DefaultOpt; 105 } 106 107 static unsigned getOptimizationLevelSize(ArgList &Args) { 108 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 109 if (A->getOption().matches(options::OPT_O)) { 110 switch (A->getValue()[0]) { 111 default: 112 return 0; 113 case 's': 114 return 1; 115 case 'z': 116 return 2; 117 } 118 } 119 } 120 return 0; 121 } 122 123 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 124 OptSpecifier GroupWithValue, 125 std::vector<std::string> &Diagnostics) { 126 for (Arg *A : Args.filtered(Group)) { 127 if (A->getOption().getKind() == Option::FlagClass) { 128 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 129 // its name (minus the "W" or "R" at the beginning) to the warning list. 130 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 131 } else if (A->getOption().matches(GroupWithValue)) { 132 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 133 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 134 } else { 135 // Otherwise, add its value (for OPT_W_Joined and similar). 136 for (const char *Arg : A->getValues()) 137 Diagnostics.emplace_back(Arg); 138 } 139 } 140 } 141 142 static void getAllNoBuiltinFuncValues(ArgList &Args, 143 std::vector<std::string> &Funcs) { 144 SmallVector<const char *, 8> Values; 145 for (const auto &Arg : Args) { 146 const Option &O = Arg->getOption(); 147 if (O.matches(options::OPT_fno_builtin_)) { 148 const char *FuncName = Arg->getValue(); 149 if (Builtin::Context::isBuiltinFunc(FuncName)) 150 Values.push_back(FuncName); 151 } 152 } 153 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 154 } 155 156 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 157 DiagnosticsEngine &Diags) { 158 using namespace options; 159 bool Success = true; 160 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 161 StringRef Name = A->getValue(); 162 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 163 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 164 .Case(CMDFLAG, NAME##Model) 165 #include "clang/StaticAnalyzer/Core/Analyses.def" 166 .Default(NumStores); 167 if (Value == NumStores) { 168 Diags.Report(diag::err_drv_invalid_value) 169 << A->getAsString(Args) << Name; 170 Success = false; 171 } else { 172 Opts.AnalysisStoreOpt = Value; 173 } 174 } 175 176 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 177 StringRef Name = A->getValue(); 178 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 179 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 180 .Case(CMDFLAG, NAME##Model) 181 #include "clang/StaticAnalyzer/Core/Analyses.def" 182 .Default(NumConstraints); 183 if (Value == NumConstraints) { 184 Diags.Report(diag::err_drv_invalid_value) 185 << A->getAsString(Args) << Name; 186 Success = false; 187 } else { 188 Opts.AnalysisConstraintsOpt = Value; 189 } 190 } 191 192 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 193 StringRef Name = A->getValue(); 194 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 195 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 196 .Case(CMDFLAG, PD_##NAME) 197 #include "clang/StaticAnalyzer/Core/Analyses.def" 198 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 199 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 200 Diags.Report(diag::err_drv_invalid_value) 201 << A->getAsString(Args) << Name; 202 Success = false; 203 } else { 204 Opts.AnalysisDiagOpt = Value; 205 } 206 } 207 208 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 209 StringRef Name = A->getValue(); 210 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 211 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 212 .Case(CMDFLAG, NAME) 213 #include "clang/StaticAnalyzer/Core/Analyses.def" 214 .Default(NumPurgeModes); 215 if (Value == NumPurgeModes) { 216 Diags.Report(diag::err_drv_invalid_value) 217 << A->getAsString(Args) << Name; 218 Success = false; 219 } else { 220 Opts.AnalysisPurgeOpt = Value; 221 } 222 } 223 224 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 225 StringRef Name = A->getValue(); 226 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 227 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 228 .Case(CMDFLAG, NAME) 229 #include "clang/StaticAnalyzer/Core/Analyses.def" 230 .Default(NumInliningModes); 231 if (Value == NumInliningModes) { 232 Diags.Report(diag::err_drv_invalid_value) 233 << A->getAsString(Args) << Name; 234 Success = false; 235 } else { 236 Opts.InliningMode = Value; 237 } 238 } 239 240 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 241 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 242 243 Opts.visualizeExplodedGraphWithGraphViz = 244 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 245 Opts.visualizeExplodedGraphWithUbiGraph = 246 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 247 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 248 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 249 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 250 Opts.AnalyzeNestedBlocks = 251 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 252 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 253 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 254 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 255 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 256 Opts.maxBlockVisitOnPath = 257 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 258 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 259 Opts.InlineMaxStackDepth = 260 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 261 Opts.InlineMaxStackDepth, Diags); 262 263 Opts.CheckersControlList.clear(); 264 for (const Arg *A : 265 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 266 A->claim(); 267 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 268 // We can have a list of comma separated checker names, e.g: 269 // '-analyzer-checker=cocoa,unix' 270 StringRef checkerList = A->getValue(); 271 SmallVector<StringRef, 4> checkers; 272 checkerList.split(checkers, ","); 273 for (StringRef checker : checkers) 274 Opts.CheckersControlList.emplace_back(checker, enable); 275 } 276 277 // Go through the analyzer configuration options. 278 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 279 A->claim(); 280 // We can have a list of comma separated config names, e.g: 281 // '-analyzer-config key1=val1,key2=val2' 282 StringRef configList = A->getValue(); 283 SmallVector<StringRef, 4> configVals; 284 configList.split(configVals, ","); 285 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 286 StringRef key, val; 287 std::tie(key, val) = configVals[i].split("="); 288 if (val.empty()) { 289 Diags.Report(SourceLocation(), 290 diag::err_analyzer_config_no_value) << configVals[i]; 291 Success = false; 292 break; 293 } 294 if (val.find('=') != StringRef::npos) { 295 Diags.Report(SourceLocation(), 296 diag::err_analyzer_config_multiple_values) 297 << configVals[i]; 298 Success = false; 299 break; 300 } 301 Opts.Config[key] = val; 302 } 303 } 304 305 return Success; 306 } 307 308 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 309 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 310 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 311 return true; 312 } 313 314 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 315 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 316 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 317 } 318 319 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 320 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 321 StringRef Value = A->getValue(); 322 if (Value == "small" || Value == "kernel" || Value == "medium" || 323 Value == "large") 324 return Value; 325 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 326 } 327 return "default"; 328 } 329 330 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 331 /// It returns a pointer to the newly generated Regex instance. 332 static std::shared_ptr<llvm::Regex> 333 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 334 Arg *RpassArg) { 335 StringRef Val = RpassArg->getValue(); 336 std::string RegexError; 337 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 338 if (!Pattern->isValid(RegexError)) { 339 Diags.Report(diag::err_drv_optimization_remark_pattern) 340 << RegexError << RpassArg->getAsString(Args); 341 Pattern.reset(); 342 } 343 return Pattern; 344 } 345 346 static bool parseDiagnosticLevelMask(StringRef FlagName, 347 const std::vector<std::string> &Levels, 348 DiagnosticsEngine *Diags, 349 DiagnosticLevelMask &M) { 350 bool Success = true; 351 for (const auto &Level : Levels) { 352 DiagnosticLevelMask const PM = 353 llvm::StringSwitch<DiagnosticLevelMask>(Level) 354 .Case("note", DiagnosticLevelMask::Note) 355 .Case("remark", DiagnosticLevelMask::Remark) 356 .Case("warning", DiagnosticLevelMask::Warning) 357 .Case("error", DiagnosticLevelMask::Error) 358 .Default(DiagnosticLevelMask::None); 359 if (PM == DiagnosticLevelMask::None) { 360 Success = false; 361 if (Diags) 362 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 363 } 364 M = M | PM; 365 } 366 return Success; 367 } 368 369 static void parseSanitizerKinds(StringRef FlagName, 370 const std::vector<std::string> &Sanitizers, 371 DiagnosticsEngine &Diags, SanitizerSet &S) { 372 for (const auto &Sanitizer : Sanitizers) { 373 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 374 if (K == 0) 375 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 376 else 377 S.set(K, true); 378 } 379 } 380 381 // Set the profile kind for fprofile-instrument. 382 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 383 DiagnosticsEngine &Diags) { 384 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 385 if (A == nullptr) 386 return; 387 StringRef S = A->getValue(); 388 unsigned I = llvm::StringSwitch<unsigned>(S) 389 .Case("none", CodeGenOptions::ProfileNone) 390 .Case("clang", CodeGenOptions::ProfileClangInstr) 391 .Case("llvm", CodeGenOptions::ProfileIRInstr) 392 .Default(~0U); 393 if (I == ~0U) { 394 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 395 << S; 396 return; 397 } 398 CodeGenOptions::ProfileInstrKind Instrumentor = 399 static_cast<CodeGenOptions::ProfileInstrKind>(I); 400 Opts.setProfileInstr(Instrumentor); 401 } 402 403 // Set the profile kind using fprofile-instrument-use-path. 404 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 405 const Twine &ProfileName) { 406 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 407 // In error, return silently and let Clang PGOUse report the error message. 408 if (auto E = ReaderOrErr.takeError()) { 409 llvm::consumeError(std::move(E)); 410 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 411 return; 412 } 413 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 414 std::move(ReaderOrErr.get()); 415 if (PGOReader->isIRLevelProfile()) 416 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 417 else 418 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 419 } 420 421 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 422 DiagnosticsEngine &Diags, 423 const TargetOptions &TargetOpts) { 424 using namespace options; 425 bool Success = true; 426 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 427 428 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 429 // TODO: This could be done in Driver 430 unsigned MaxOptLevel = 3; 431 if (OptimizationLevel > MaxOptLevel) { 432 // If the optimization level is not supported, fall back on the default 433 // optimization 434 Diags.Report(diag::warn_drv_optimization_value) 435 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 436 OptimizationLevel = MaxOptLevel; 437 } 438 Opts.OptimizationLevel = OptimizationLevel; 439 440 // We must always run at least the always inlining pass. 441 Opts.setInlining( 442 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 443 : CodeGenOptions::OnlyAlwaysInlining); 444 // -fno-inline-functions overrides OptimizationLevel > 1. 445 Opts.NoInline = Args.hasArg(OPT_fno_inline); 446 if (Arg* InlineArg = Args.getLastArg(options::OPT_finline_functions, 447 options::OPT_finline_hint_functions, 448 options::OPT_fno_inline_functions)) { 449 const Option& InlineOpt = InlineArg->getOption(); 450 if (InlineOpt.matches(options::OPT_finline_functions)) 451 Opts.setInlining(CodeGenOptions::NormalInlining); 452 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 453 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 454 else 455 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 456 } 457 458 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 459 StringRef Name = A->getValue(); 460 if (Name == "Accelerate") 461 Opts.setVecLib(CodeGenOptions::Accelerate); 462 else if (Name == "SVML") 463 Opts.setVecLib(CodeGenOptions::SVML); 464 else if (Name == "none") 465 Opts.setVecLib(CodeGenOptions::NoLibrary); 466 else 467 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 468 } 469 470 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 471 unsigned Val = 472 llvm::StringSwitch<unsigned>(A->getValue()) 473 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 474 .Case("limited", codegenoptions::LimitedDebugInfo) 475 .Case("standalone", codegenoptions::FullDebugInfo) 476 .Default(~0U); 477 if (Val == ~0U) 478 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 479 << A->getValue(); 480 else 481 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 482 } 483 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 484 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 485 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 486 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 487 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 488 .Default(~0U); 489 if (Val == ~0U) 490 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 491 << A->getValue(); 492 else 493 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 494 } 495 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 496 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 497 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 498 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 499 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 500 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 501 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 502 Opts.DebugExplicitImport = Triple.isPS4CPU(); 503 504 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 505 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 506 507 if (const Arg *A = 508 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 509 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 510 511 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 512 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 513 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 514 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 515 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 516 OPT_fuse_register_sized_bitfield_access); 517 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 518 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 519 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 520 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 521 Opts.NoCommon = Args.hasArg(OPT_fno_common); 522 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 523 Opts.OptimizeSize = getOptimizationLevelSize(Args); 524 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 525 Args.hasArg(OPT_ffreestanding)); 526 if (Opts.SimplifyLibCalls) 527 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 528 Opts.UnrollLoops = 529 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 530 (Opts.OptimizationLevel > 1)); 531 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 532 533 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 534 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 535 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 536 537 setPGOInstrumentor(Opts, Args, Diags); 538 Opts.InstrProfileOutput = 539 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 540 Opts.ProfileInstrumentUsePath = 541 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 542 if (!Opts.ProfileInstrumentUsePath.empty()) 543 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 544 545 Opts.CoverageMapping = 546 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 547 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 548 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 549 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 550 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 551 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 552 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 553 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 554 Opts.CodeModel = getCodeModel(Args, Diags); 555 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 556 Opts.DisableFPElim = 557 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 558 Opts.DisableFree = Args.hasArg(OPT_disable_free); 559 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 560 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 561 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 562 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 563 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 564 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 565 Args.hasArg(OPT_cl_finite_math_only) || 566 Args.hasArg(OPT_cl_fast_relaxed_math)); 567 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 568 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 569 Args.hasArg(OPT_cl_finite_math_only) || 570 Args.hasArg(OPT_cl_fast_relaxed_math)); 571 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 572 Args.hasArg(OPT_cl_no_signed_zeros)); 573 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 574 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 575 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 576 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 577 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 578 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 579 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 580 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 581 Opts.IncrementalLinkerCompatible = 582 Args.hasArg(OPT_mincremental_linker_compatible); 583 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 584 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 585 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 586 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 587 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 588 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 589 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 590 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 591 Args.hasArg(OPT_cl_fast_relaxed_math); 592 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 593 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 594 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 595 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 596 Diags.Report(diag::err_drv_invalid_value) 597 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 598 << Opts.ThreadModel; 599 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 600 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 601 602 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 603 OPT_fno_function_sections, false); 604 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 605 OPT_fno_data_sections, false); 606 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 607 OPT_fno_unique_section_names, true); 608 609 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 610 611 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 612 613 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 614 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ); 615 Opts.EmitSummaryIndex = A && A->containsValue("thin"); 616 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 617 if (IK != IK_LLVM_IR) 618 Diags.Report(diag::err_drv_argument_only_allowed_with) 619 << A->getAsString(Args) << "-x ir"; 620 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 621 } 622 623 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 624 625 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 626 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 627 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 628 629 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 630 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 631 632 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 633 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 634 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 635 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 636 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 637 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 638 Opts.CoverageNoFunctionNamesInData = 639 Args.hasArg(OPT_coverage_no_function_names_in_data); 640 Opts.CoverageExitBlockBeforeBody = 641 Args.hasArg(OPT_coverage_exit_block_before_body); 642 if (Args.hasArg(OPT_coverage_version_EQ)) { 643 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 644 if (CoverageVersion.size() != 4) { 645 Diags.Report(diag::err_drv_invalid_value) 646 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 647 << CoverageVersion; 648 } else { 649 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 650 } 651 } 652 } 653 // Handle -fembed-bitcode option. 654 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 655 StringRef Name = A->getValue(); 656 unsigned Model = llvm::StringSwitch<unsigned>(Name) 657 .Case("off", CodeGenOptions::Embed_Off) 658 .Case("all", CodeGenOptions::Embed_All) 659 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 660 .Case("marker", CodeGenOptions::Embed_Marker) 661 .Default(~0U); 662 if (Model == ~0U) { 663 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 664 Success = false; 665 } else 666 Opts.setEmbedBitcode( 667 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 668 } 669 // FIXME: For backend options that are not yet recorded as function 670 // attributes in the IR, keep track of them so we can embed them in a 671 // separate data section and use them when building the bitcode. 672 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 673 for (const auto &A : Args) { 674 // Do not encode output and input. 675 if (A->getOption().getID() == options::OPT_o || 676 A->getOption().getID() == options::OPT_INPUT || 677 A->getOption().getID() == options::OPT_x || 678 A->getOption().getID() == options::OPT_fembed_bitcode || 679 (A->getOption().getGroup().isValid() && 680 A->getOption().getGroup().getID() == options::OPT_W_Group)) 681 continue; 682 ArgStringList ASL; 683 A->render(Args, ASL); 684 for (const auto &arg : ASL) { 685 StringRef ArgStr(arg); 686 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 687 // using \00 to seperate each commandline options. 688 Opts.CmdArgs.push_back('\0'); 689 } 690 } 691 } 692 693 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 694 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 695 Opts.XRayInstructionThreshold = 696 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_, 200, Diags); 697 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 698 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 699 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 700 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 701 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 702 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 703 unsigned LinkFlags = llvm::Linker::Flags::None; 704 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) 705 LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded | 706 llvm::Linker::Flags::InternalizeLinkedSymbols; 707 Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue())); 708 } 709 Opts.SanitizeCoverageType = 710 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 711 Opts.SanitizeCoverageIndirectCalls = 712 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 713 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 714 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 715 Opts.SanitizeCoverage8bitCounters = 716 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 717 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 718 Opts.SanitizeMemoryTrackOrigins = 719 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 720 Opts.SanitizeMemoryUseAfterDtor = 721 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 722 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 723 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 724 Opts.SanitizeAddressUseAfterScope = 725 Args.hasArg(OPT_fsanitize_address_use_after_scope); 726 Opts.SSPBufferSize = 727 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 728 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 729 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 730 StringRef Val = A->getValue(); 731 unsigned StackAlignment = Opts.StackAlignment; 732 Val.getAsInteger(10, StackAlignment); 733 Opts.StackAlignment = StackAlignment; 734 } 735 736 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 737 StringRef Val = A->getValue(); 738 unsigned StackProbeSize = Opts.StackProbeSize; 739 Val.getAsInteger(0, StackProbeSize); 740 Opts.StackProbeSize = StackProbeSize; 741 } 742 743 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 744 StringRef Name = A->getValue(); 745 unsigned Method = llvm::StringSwitch<unsigned>(Name) 746 .Case("legacy", CodeGenOptions::Legacy) 747 .Case("non-legacy", CodeGenOptions::NonLegacy) 748 .Case("mixed", CodeGenOptions::Mixed) 749 .Default(~0U); 750 if (Method == ~0U) { 751 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 752 Success = false; 753 } else { 754 Opts.setObjCDispatchMethod( 755 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 756 } 757 } 758 759 Opts.EmulatedTLS = 760 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 761 762 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 763 StringRef Name = A->getValue(); 764 unsigned Model = llvm::StringSwitch<unsigned>(Name) 765 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 766 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 767 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 768 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 769 .Default(~0U); 770 if (Model == ~0U) { 771 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 772 Success = false; 773 } else { 774 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 775 } 776 } 777 778 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 779 StringRef Val = A->getValue(); 780 if (Val == "fast") 781 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 782 else if (Val == "on") 783 Opts.setFPContractMode(CodeGenOptions::FPC_On); 784 else if (Val == "off") 785 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 786 else 787 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 788 } 789 790 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 791 if (A->getOption().matches(OPT_fpcc_struct_return)) { 792 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 793 } else { 794 assert(A->getOption().matches(OPT_freg_struct_return)); 795 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 796 } 797 } 798 799 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 800 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 801 bool NeedLocTracking = false; 802 803 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 804 Opts.OptimizationRemarkPattern = 805 GenerateOptimizationRemarkRegex(Diags, Args, A); 806 NeedLocTracking = true; 807 } 808 809 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 810 Opts.OptimizationRemarkMissedPattern = 811 GenerateOptimizationRemarkRegex(Diags, Args, A); 812 NeedLocTracking = true; 813 } 814 815 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 816 Opts.OptimizationRemarkAnalysisPattern = 817 GenerateOptimizationRemarkRegex(Diags, Args, A); 818 NeedLocTracking = true; 819 } 820 821 // If the user requested to use a sample profile for PGO, then the 822 // backend will need to track source location information so the profile 823 // can be incorporated into the IR. 824 if (!Opts.SampleProfileFile.empty()) 825 NeedLocTracking = true; 826 827 // If the user requested a flag that requires source locations available in 828 // the backend, make sure that the backend tracks source location information. 829 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 830 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 831 832 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 833 834 // Parse -fsanitize-recover= arguments. 835 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 836 parseSanitizerKinds("-fsanitize-recover=", 837 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 838 Opts.SanitizeRecover); 839 parseSanitizerKinds("-fsanitize-trap=", 840 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 841 Opts.SanitizeTrap); 842 843 Opts.CudaGpuBinaryFileNames = 844 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 845 846 Opts.Backchain = Args.hasArg(OPT_mbackchain); 847 848 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 849 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 850 851 return Success; 852 } 853 854 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 855 ArgList &Args) { 856 using namespace options; 857 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 858 Opts.Targets = Args.getAllArgValues(OPT_MT); 859 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 860 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 861 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 862 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 863 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 864 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 865 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 866 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 867 Opts.ModuleDependencyOutputDir = 868 Args.getLastArgValue(OPT_module_dependency_dir); 869 if (Args.hasArg(OPT_MV)) 870 Opts.OutputFormat = DependencyOutputFormat::NMake; 871 // Add sanitizer blacklists as extra dependencies. 872 // They won't be discovered by the regular preprocessor, so 873 // we let make / ninja to know about this implicit dependency. 874 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 875 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 876 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 877 ModuleFiles.end()); 878 } 879 880 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 881 // Color diagnostics default to auto ("on" if terminal supports) in the driver 882 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 883 // Support both clang's -f[no-]color-diagnostics and gcc's 884 // -f[no-]diagnostics-colors[=never|always|auto]. 885 enum { 886 Colors_On, 887 Colors_Off, 888 Colors_Auto 889 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 890 for (Arg *A : Args) { 891 const Option &O = A->getOption(); 892 if (!O.matches(options::OPT_fcolor_diagnostics) && 893 !O.matches(options::OPT_fdiagnostics_color) && 894 !O.matches(options::OPT_fno_color_diagnostics) && 895 !O.matches(options::OPT_fno_diagnostics_color) && 896 !O.matches(options::OPT_fdiagnostics_color_EQ)) 897 continue; 898 899 if (O.matches(options::OPT_fcolor_diagnostics) || 900 O.matches(options::OPT_fdiagnostics_color)) { 901 ShowColors = Colors_On; 902 } else if (O.matches(options::OPT_fno_color_diagnostics) || 903 O.matches(options::OPT_fno_diagnostics_color)) { 904 ShowColors = Colors_Off; 905 } else { 906 assert(O.matches(options::OPT_fdiagnostics_color_EQ)); 907 StringRef Value(A->getValue()); 908 if (Value == "always") 909 ShowColors = Colors_On; 910 else if (Value == "never") 911 ShowColors = Colors_Off; 912 else if (Value == "auto") 913 ShowColors = Colors_Auto; 914 } 915 } 916 if (ShowColors == Colors_On || 917 (ShowColors == Colors_Auto && llvm::sys::Process::StandardErrHasColors())) 918 return true; 919 return false; 920 } 921 922 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 923 DiagnosticsEngine *Diags, 924 bool DefaultDiagColor) { 925 using namespace options; 926 bool Success = true; 927 928 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 929 if (Arg *A = 930 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 931 Opts.DiagnosticSerializationFile = A->getValue(); 932 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 933 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 934 Opts.Pedantic = Args.hasArg(OPT_pedantic); 935 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 936 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 937 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 938 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 939 OPT_fno_show_column, 940 /*Default=*/true); 941 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 942 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 943 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 944 945 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 946 947 // Default behavior is to not to show note include stacks. 948 Opts.ShowNoteIncludeStack = false; 949 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 950 OPT_fno_diagnostics_show_note_include_stack)) 951 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 952 Opts.ShowNoteIncludeStack = true; 953 954 StringRef ShowOverloads = 955 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 956 if (ShowOverloads == "best") 957 Opts.setShowOverloads(Ovl_Best); 958 else if (ShowOverloads == "all") 959 Opts.setShowOverloads(Ovl_All); 960 else { 961 Success = false; 962 if (Diags) 963 Diags->Report(diag::err_drv_invalid_value) 964 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 965 << ShowOverloads; 966 } 967 968 StringRef ShowCategory = 969 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 970 if (ShowCategory == "none") 971 Opts.ShowCategories = 0; 972 else if (ShowCategory == "id") 973 Opts.ShowCategories = 1; 974 else if (ShowCategory == "name") 975 Opts.ShowCategories = 2; 976 else { 977 Success = false; 978 if (Diags) 979 Diags->Report(diag::err_drv_invalid_value) 980 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 981 << ShowCategory; 982 } 983 984 StringRef Format = 985 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 986 if (Format == "clang") 987 Opts.setFormat(DiagnosticOptions::Clang); 988 else if (Format == "msvc") 989 Opts.setFormat(DiagnosticOptions::MSVC); 990 else if (Format == "msvc-fallback") { 991 Opts.setFormat(DiagnosticOptions::MSVC); 992 Opts.CLFallbackMode = true; 993 } else if (Format == "vi") 994 Opts.setFormat(DiagnosticOptions::Vi); 995 else { 996 Success = false; 997 if (Diags) 998 Diags->Report(diag::err_drv_invalid_value) 999 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1000 << Format; 1001 } 1002 1003 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1004 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1005 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1006 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1007 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1008 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1009 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1010 Diags, DiagMask); 1011 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1012 DiagMask = DiagnosticLevelMask::All; 1013 Opts.setVerifyIgnoreUnexpected(DiagMask); 1014 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1015 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1016 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1017 Opts.MacroBacktraceLimit = 1018 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1019 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1020 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1021 Args, OPT_ftemplate_backtrace_limit, 1022 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1023 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1024 Args, OPT_fconstexpr_backtrace_limit, 1025 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1026 Opts.SpellCheckingLimit = getLastArgIntValue( 1027 Args, OPT_fspell_checking_limit, 1028 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1029 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1030 DiagnosticOptions::DefaultTabStop, Diags); 1031 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1032 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1033 if (Diags) 1034 Diags->Report(diag::warn_ignoring_ftabstop_value) 1035 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1036 } 1037 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1038 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1039 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1040 1041 return Success; 1042 } 1043 1044 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1045 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1046 } 1047 1048 /// Parse the argument to the -ftest-module-file-extension 1049 /// command-line argument. 1050 /// 1051 /// \returns true on error, false on success. 1052 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1053 std::string &BlockName, 1054 unsigned &MajorVersion, 1055 unsigned &MinorVersion, 1056 bool &Hashed, 1057 std::string &UserInfo) { 1058 SmallVector<StringRef, 5> Args; 1059 Arg.split(Args, ':', 5); 1060 if (Args.size() < 5) 1061 return true; 1062 1063 BlockName = Args[0]; 1064 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1065 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1066 if (Args[3].getAsInteger(2, Hashed)) return true; 1067 if (Args.size() > 4) 1068 UserInfo = Args[4]; 1069 return false; 1070 } 1071 1072 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1073 DiagnosticsEngine &Diags) { 1074 using namespace options; 1075 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1076 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1077 switch (A->getOption().getID()) { 1078 default: 1079 llvm_unreachable("Invalid option in group!"); 1080 case OPT_ast_list: 1081 Opts.ProgramAction = frontend::ASTDeclList; break; 1082 case OPT_ast_dump: 1083 case OPT_ast_dump_lookups: 1084 Opts.ProgramAction = frontend::ASTDump; break; 1085 case OPT_ast_print: 1086 Opts.ProgramAction = frontend::ASTPrint; break; 1087 case OPT_ast_view: 1088 Opts.ProgramAction = frontend::ASTView; break; 1089 case OPT_dump_raw_tokens: 1090 Opts.ProgramAction = frontend::DumpRawTokens; break; 1091 case OPT_dump_tokens: 1092 Opts.ProgramAction = frontend::DumpTokens; break; 1093 case OPT_S: 1094 Opts.ProgramAction = frontend::EmitAssembly; break; 1095 case OPT_emit_llvm_bc: 1096 Opts.ProgramAction = frontend::EmitBC; break; 1097 case OPT_emit_html: 1098 Opts.ProgramAction = frontend::EmitHTML; break; 1099 case OPT_emit_llvm: 1100 Opts.ProgramAction = frontend::EmitLLVM; break; 1101 case OPT_emit_llvm_only: 1102 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1103 case OPT_emit_codegen_only: 1104 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1105 case OPT_emit_obj: 1106 Opts.ProgramAction = frontend::EmitObj; break; 1107 case OPT_fixit_EQ: 1108 Opts.FixItSuffix = A->getValue(); 1109 // fall-through! 1110 case OPT_fixit: 1111 Opts.ProgramAction = frontend::FixIt; break; 1112 case OPT_emit_module: 1113 Opts.ProgramAction = frontend::GenerateModule; break; 1114 case OPT_emit_pch: 1115 Opts.ProgramAction = frontend::GeneratePCH; break; 1116 case OPT_emit_pth: 1117 Opts.ProgramAction = frontend::GeneratePTH; break; 1118 case OPT_init_only: 1119 Opts.ProgramAction = frontend::InitOnly; break; 1120 case OPT_fsyntax_only: 1121 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1122 case OPT_module_file_info: 1123 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1124 case OPT_verify_pch: 1125 Opts.ProgramAction = frontend::VerifyPCH; break; 1126 case OPT_print_decl_contexts: 1127 Opts.ProgramAction = frontend::PrintDeclContext; break; 1128 case OPT_print_preamble: 1129 Opts.ProgramAction = frontend::PrintPreamble; break; 1130 case OPT_E: 1131 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1132 case OPT_rewrite_macros: 1133 Opts.ProgramAction = frontend::RewriteMacros; break; 1134 case OPT_rewrite_objc: 1135 Opts.ProgramAction = frontend::RewriteObjC; break; 1136 case OPT_rewrite_test: 1137 Opts.ProgramAction = frontend::RewriteTest; break; 1138 case OPT_analyze: 1139 Opts.ProgramAction = frontend::RunAnalysis; break; 1140 case OPT_migrate: 1141 Opts.ProgramAction = frontend::MigrateSource; break; 1142 case OPT_Eonly: 1143 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1144 } 1145 } 1146 1147 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1148 Opts.Plugins.emplace_back(A->getValue(0)); 1149 Opts.ProgramAction = frontend::PluginAction; 1150 Opts.ActionName = A->getValue(); 1151 } 1152 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1153 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1154 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1155 1156 for (const std::string &Arg : 1157 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1158 std::string BlockName; 1159 unsigned MajorVersion; 1160 unsigned MinorVersion; 1161 bool Hashed; 1162 std::string UserInfo; 1163 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1164 MinorVersion, Hashed, UserInfo)) { 1165 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1166 1167 continue; 1168 } 1169 1170 // Add the testing module file extension. 1171 Opts.ModuleFileExtensions.push_back( 1172 new TestModuleFileExtension(BlockName, MajorVersion, MinorVersion, 1173 Hashed, UserInfo)); 1174 } 1175 1176 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1177 Opts.CodeCompletionAt = 1178 ParsedSourceLocation::FromString(A->getValue()); 1179 if (Opts.CodeCompletionAt.FileName.empty()) 1180 Diags.Report(diag::err_drv_invalid_value) 1181 << A->getAsString(Args) << A->getValue(); 1182 } 1183 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1184 1185 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1186 Opts.Plugins = Args.getAllArgValues(OPT_load); 1187 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1188 Opts.ShowHelp = Args.hasArg(OPT_help); 1189 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1190 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1191 Opts.ShowVersion = Args.hasArg(OPT_version); 1192 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1193 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1194 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1195 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1196 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1197 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1198 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1199 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1200 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1201 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1202 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1203 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1204 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 1205 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1206 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1207 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1208 1209 Opts.CodeCompleteOpts.IncludeMacros 1210 = Args.hasArg(OPT_code_completion_macros); 1211 Opts.CodeCompleteOpts.IncludeCodePatterns 1212 = Args.hasArg(OPT_code_completion_patterns); 1213 Opts.CodeCompleteOpts.IncludeGlobals 1214 = !Args.hasArg(OPT_no_code_completion_globals); 1215 Opts.CodeCompleteOpts.IncludeBriefComments 1216 = Args.hasArg(OPT_code_completion_brief_comments); 1217 1218 Opts.OverrideRecordLayoutsFile 1219 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1220 Opts.AuxTriple = 1221 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1222 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1223 1224 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1225 OPT_arcmt_modify, 1226 OPT_arcmt_migrate)) { 1227 switch (A->getOption().getID()) { 1228 default: 1229 llvm_unreachable("missed a case"); 1230 case OPT_arcmt_check: 1231 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1232 break; 1233 case OPT_arcmt_modify: 1234 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1235 break; 1236 case OPT_arcmt_migrate: 1237 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1238 break; 1239 } 1240 } 1241 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1242 Opts.ARCMTMigrateReportOut 1243 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1244 Opts.ARCMTMigrateEmitARCErrors 1245 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1246 1247 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1248 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1249 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1250 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1251 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1252 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1253 if (Args.hasArg(OPT_objcmt_migrate_property)) 1254 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1255 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1256 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1257 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1258 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1259 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1260 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1261 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1262 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1263 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1264 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1265 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1266 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1267 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1268 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1269 if (Args.hasArg(OPT_objcmt_atomic_property)) 1270 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1271 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1272 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1273 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1274 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1275 if (Args.hasArg(OPT_objcmt_migrate_all)) 1276 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1277 1278 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1279 1280 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1281 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1282 Diags.Report(diag::err_drv_argument_not_allowed_with) 1283 << "ARC migration" << "ObjC migration"; 1284 } 1285 1286 InputKind DashX = IK_None; 1287 if (const Arg *A = Args.getLastArg(OPT_x)) { 1288 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 1289 .Case("c", IK_C) 1290 .Case("cl", IK_OpenCL) 1291 .Case("cuda", IK_CUDA) 1292 .Case("c++", IK_CXX) 1293 .Case("objective-c", IK_ObjC) 1294 .Case("objective-c++", IK_ObjCXX) 1295 .Case("cpp-output", IK_PreprocessedC) 1296 .Case("assembler-with-cpp", IK_Asm) 1297 .Case("c++-cpp-output", IK_PreprocessedCXX) 1298 .Case("cuda-cpp-output", IK_PreprocessedCuda) 1299 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1300 .Case("objc-cpp-output", IK_PreprocessedObjC) 1301 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1302 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1303 .Case("c-header", IK_C) 1304 .Case("cl-header", IK_OpenCL) 1305 .Case("objective-c-header", IK_ObjC) 1306 .Case("c++-header", IK_CXX) 1307 .Case("objective-c++-header", IK_ObjCXX) 1308 .Cases("ast", "pcm", IK_AST) 1309 .Case("ir", IK_LLVM_IR) 1310 .Case("renderscript", IK_RenderScript) 1311 .Default(IK_None); 1312 if (DashX == IK_None) 1313 Diags.Report(diag::err_drv_invalid_value) 1314 << A->getAsString(Args) << A->getValue(); 1315 } 1316 1317 // '-' is the default input if none is given. 1318 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1319 Opts.Inputs.clear(); 1320 if (Inputs.empty()) 1321 Inputs.push_back("-"); 1322 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1323 InputKind IK = DashX; 1324 if (IK == IK_None) { 1325 IK = FrontendOptions::getInputKindForExtension( 1326 StringRef(Inputs[i]).rsplit('.').second); 1327 // FIXME: Remove this hack. 1328 if (i == 0) 1329 DashX = IK; 1330 } 1331 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1332 } 1333 1334 return DashX; 1335 } 1336 1337 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1338 void *MainAddr) { 1339 std::string ClangExecutable = 1340 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1341 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1342 1343 // Compute the path to the resource directory. 1344 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1345 SmallString<128> P(Dir); 1346 if (ClangResourceDir != "") 1347 llvm::sys::path::append(P, ClangResourceDir); 1348 else 1349 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1350 "clang", CLANG_VERSION_STRING); 1351 1352 return P.str(); 1353 } 1354 1355 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1356 using namespace options; 1357 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1358 Opts.Verbose = Args.hasArg(OPT_v); 1359 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1360 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1361 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1362 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1363 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1364 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1365 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 1366 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1367 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1368 Opts.ModulesValidateDiagnosticOptions = 1369 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1370 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1371 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1372 Opts.ModuleCachePruneInterval = 1373 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1374 Opts.ModuleCachePruneAfter = 1375 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1376 Opts.ModulesValidateOncePerBuildSession = 1377 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1378 Opts.BuildSessionTimestamp = 1379 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1380 Opts.ModulesValidateSystemHeaders = 1381 Args.hasArg(OPT_fmodules_validate_system_headers); 1382 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1383 Opts.ModuleFormat = A->getValue(); 1384 1385 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1386 StringRef MacroDef = A->getValue(); 1387 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first); 1388 } 1389 1390 // Add -I..., -F..., and -index-header-map options in order. 1391 bool IsIndexHeaderMap = false; 1392 bool IsSysrootSpecified = 1393 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1394 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1395 if (A->getOption().matches(OPT_index_header_map)) { 1396 // -index-header-map applies to the next -I or -F. 1397 IsIndexHeaderMap = true; 1398 continue; 1399 } 1400 1401 frontend::IncludeDirGroup Group = 1402 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1403 1404 bool IsFramework = A->getOption().matches(OPT_F); 1405 std::string Path = A->getValue(); 1406 1407 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1408 SmallString<32> Buffer; 1409 llvm::sys::path::append(Buffer, Opts.Sysroot, 1410 llvm::StringRef(A->getValue()).substr(1)); 1411 Path = Buffer.str(); 1412 } 1413 1414 Opts.AddPath(Path.c_str(), Group, IsFramework, 1415 /*IgnoreSysroot*/ true); 1416 IsIndexHeaderMap = false; 1417 } 1418 1419 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1420 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1421 for (const Arg *A : 1422 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1423 if (A->getOption().matches(OPT_iprefix)) 1424 Prefix = A->getValue(); 1425 else if (A->getOption().matches(OPT_iwithprefix)) 1426 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1427 else 1428 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1429 } 1430 1431 for (const Arg *A : Args.filtered(OPT_idirafter)) 1432 Opts.AddPath(A->getValue(), frontend::After, false, true); 1433 for (const Arg *A : Args.filtered(OPT_iquote)) 1434 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1435 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1436 Opts.AddPath(A->getValue(), frontend::System, false, 1437 !A->getOption().matches(OPT_iwithsysroot)); 1438 for (const Arg *A : Args.filtered(OPT_iframework)) 1439 Opts.AddPath(A->getValue(), frontend::System, true, true); 1440 1441 // Add the paths for the various language specific isystem flags. 1442 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1443 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1444 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1445 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1446 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1447 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1448 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1449 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1450 1451 // Add the internal paths from a driver that detects standard include paths. 1452 for (const Arg *A : 1453 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1454 frontend::IncludeDirGroup Group = frontend::System; 1455 if (A->getOption().matches(OPT_internal_externc_isystem)) 1456 Group = frontend::ExternCSystem; 1457 Opts.AddPath(A->getValue(), Group, false, true); 1458 } 1459 1460 // Add the path prefixes which are implicitly treated as being system headers. 1461 for (const Arg *A : 1462 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1463 Opts.AddSystemHeaderPrefix( 1464 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1465 1466 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1467 Opts.AddVFSOverlayFile(A->getValue()); 1468 } 1469 1470 bool isOpenCL(LangStandard::Kind LangStd) { 1471 return LangStd == LangStandard::lang_opencl || 1472 LangStd == LangStandard::lang_opencl11 || 1473 LangStd == LangStandard::lang_opencl12 || 1474 LangStd == LangStandard::lang_opencl20; 1475 } 1476 1477 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1478 const llvm::Triple &T, 1479 PreprocessorOptions &PPOpts, 1480 LangStandard::Kind LangStd) { 1481 // Set some properties which depend solely on the input kind; it would be nice 1482 // to move these to the language standard, and have the driver resolve the 1483 // input kind + language standard. 1484 if (IK == IK_Asm) { 1485 Opts.AsmPreprocessor = 1; 1486 } else if (IK == IK_ObjC || 1487 IK == IK_ObjCXX || 1488 IK == IK_PreprocessedObjC || 1489 IK == IK_PreprocessedObjCXX) { 1490 Opts.ObjC1 = Opts.ObjC2 = 1; 1491 } 1492 1493 if (LangStd == LangStandard::lang_unspecified) { 1494 // Based on the base language, pick one. 1495 switch (IK) { 1496 case IK_None: 1497 case IK_AST: 1498 case IK_LLVM_IR: 1499 llvm_unreachable("Invalid input kind!"); 1500 case IK_OpenCL: 1501 LangStd = LangStandard::lang_opencl; 1502 break; 1503 case IK_CUDA: 1504 case IK_PreprocessedCuda: 1505 LangStd = LangStandard::lang_cuda; 1506 break; 1507 case IK_Asm: 1508 case IK_C: 1509 case IK_PreprocessedC: 1510 case IK_ObjC: 1511 case IK_PreprocessedObjC: 1512 // The PS4 uses C99 as the default C standard. 1513 if (T.isPS4()) 1514 LangStd = LangStandard::lang_gnu99; 1515 else 1516 LangStd = LangStandard::lang_gnu11; 1517 break; 1518 case IK_CXX: 1519 case IK_PreprocessedCXX: 1520 case IK_ObjCXX: 1521 case IK_PreprocessedObjCXX: 1522 LangStd = LangStandard::lang_gnucxx98; 1523 break; 1524 case IK_RenderScript: 1525 LangStd = LangStandard::lang_c99; 1526 break; 1527 } 1528 } 1529 1530 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1531 Opts.LineComment = Std.hasLineComments(); 1532 Opts.C99 = Std.isC99(); 1533 Opts.C11 = Std.isC11(); 1534 Opts.CPlusPlus = Std.isCPlusPlus(); 1535 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1536 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1537 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1538 Opts.Digraphs = Std.hasDigraphs(); 1539 Opts.GNUMode = Std.isGNUMode(); 1540 Opts.GNUInline = Std.isC89(); 1541 Opts.HexFloats = Std.hasHexFloats(); 1542 Opts.ImplicitInt = Std.hasImplicitInt(); 1543 1544 // Set OpenCL Version. 1545 Opts.OpenCL = isOpenCL(LangStd) || IK == IK_OpenCL; 1546 if (LangStd == LangStandard::lang_opencl) 1547 Opts.OpenCLVersion = 100; 1548 else if (LangStd == LangStandard::lang_opencl11) 1549 Opts.OpenCLVersion = 110; 1550 else if (LangStd == LangStandard::lang_opencl12) 1551 Opts.OpenCLVersion = 120; 1552 else if (LangStd == LangStandard::lang_opencl20) 1553 Opts.OpenCLVersion = 200; 1554 1555 // OpenCL has some additional defaults. 1556 if (Opts.OpenCL) { 1557 Opts.AltiVec = 0; 1558 Opts.ZVector = 0; 1559 Opts.CXXOperatorNames = 1; 1560 Opts.LaxVectorConversions = 0; 1561 Opts.DefaultFPContract = 1; 1562 Opts.NativeHalfType = 1; 1563 Opts.NativeHalfArgsAndReturns = 1; 1564 // Include default header file for OpenCL. 1565 if (Opts.IncludeDefaultHeader) { 1566 PPOpts.Includes.push_back("opencl-c.h"); 1567 } 1568 } 1569 1570 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || 1571 LangStd == LangStandard::lang_cuda; 1572 1573 Opts.RenderScript = IK == IK_RenderScript; 1574 if (Opts.RenderScript) { 1575 Opts.NativeHalfType = 1; 1576 Opts.NativeHalfArgsAndReturns = 1; 1577 } 1578 1579 // OpenCL and C++ both have bool, true, false keywords. 1580 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1581 1582 // OpenCL has half keyword 1583 Opts.Half = Opts.OpenCL; 1584 1585 // C++ has wchar_t keyword. 1586 Opts.WChar = Opts.CPlusPlus; 1587 1588 Opts.GNUKeywords = Opts.GNUMode; 1589 Opts.CXXOperatorNames = Opts.CPlusPlus; 1590 1591 Opts.DollarIdents = !Opts.AsmPreprocessor; 1592 } 1593 1594 /// Attempt to parse a visibility value out of the given argument. 1595 static Visibility parseVisibility(Arg *arg, ArgList &args, 1596 DiagnosticsEngine &diags) { 1597 StringRef value = arg->getValue(); 1598 if (value == "default") { 1599 return DefaultVisibility; 1600 } else if (value == "hidden" || value == "internal") { 1601 return HiddenVisibility; 1602 } else if (value == "protected") { 1603 // FIXME: diagnose if target does not support protected visibility 1604 return ProtectedVisibility; 1605 } 1606 1607 diags.Report(diag::err_drv_invalid_value) 1608 << arg->getAsString(args) << value; 1609 return DefaultVisibility; 1610 } 1611 1612 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1613 const TargetOptions &TargetOpts, 1614 PreprocessorOptions &PPOpts, 1615 DiagnosticsEngine &Diags) { 1616 // FIXME: Cleanup per-file based stuff. 1617 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1618 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1619 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1620 #define LANGSTANDARD(id, name, desc, features) \ 1621 .Case(name, LangStandard::lang_##id) 1622 #define LANGSTANDARD_ALIAS(id, alias) \ 1623 .Case(alias, LangStandard::lang_##id) 1624 #include "clang/Frontend/LangStandards.def" 1625 .Default(LangStandard::lang_unspecified); 1626 if (LangStd == LangStandard::lang_unspecified) 1627 Diags.Report(diag::err_drv_invalid_value) 1628 << A->getAsString(Args) << A->getValue(); 1629 else { 1630 // Valid standard, check to make sure language and standard are 1631 // compatible. 1632 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1633 switch (IK) { 1634 case IK_C: 1635 case IK_ObjC: 1636 case IK_PreprocessedC: 1637 case IK_PreprocessedObjC: 1638 if (!(Std.isC89() || Std.isC99())) 1639 Diags.Report(diag::err_drv_argument_not_allowed_with) 1640 << A->getAsString(Args) << "C/ObjC"; 1641 break; 1642 case IK_CXX: 1643 case IK_ObjCXX: 1644 case IK_PreprocessedCXX: 1645 case IK_PreprocessedObjCXX: 1646 if (!Std.isCPlusPlus()) 1647 Diags.Report(diag::err_drv_argument_not_allowed_with) 1648 << A->getAsString(Args) << "C++/ObjC++"; 1649 break; 1650 case IK_OpenCL: 1651 if (!isOpenCL(LangStd)) 1652 Diags.Report(diag::err_drv_argument_not_allowed_with) 1653 << A->getAsString(Args) << "OpenCL"; 1654 break; 1655 case IK_CUDA: 1656 case IK_PreprocessedCuda: 1657 if (!Std.isCPlusPlus()) 1658 Diags.Report(diag::err_drv_argument_not_allowed_with) 1659 << A->getAsString(Args) << "CUDA"; 1660 break; 1661 default: 1662 break; 1663 } 1664 } 1665 } 1666 1667 // -cl-std only applies for OpenCL language standards. 1668 // Override the -std option in this case. 1669 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1670 LangStandard::Kind OpenCLLangStd 1671 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1672 .Cases("cl", "CL", LangStandard::lang_opencl) 1673 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1674 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1675 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1676 .Default(LangStandard::lang_unspecified); 1677 1678 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1679 Diags.Report(diag::err_drv_invalid_value) 1680 << A->getAsString(Args) << A->getValue(); 1681 } 1682 else 1683 LangStd = OpenCLLangStd; 1684 } 1685 1686 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1687 1688 llvm::Triple T(TargetOpts.Triple); 1689 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1690 1691 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1692 // This option should be deprecated for CL > 1.0 because 1693 // this option was added for compatibility with OpenCL 1.0. 1694 if (Args.getLastArg(OPT_cl_strict_aliasing) 1695 && Opts.OpenCLVersion > 100) { 1696 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1697 std::string(".") + 1698 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1699 Diags.Report(diag::warn_option_invalid_ocl_version) 1700 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1701 } 1702 1703 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1704 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1705 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1706 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1707 // name, as it doesn't seem a useful distinction. 1708 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1709 Opts.GNUKeywords); 1710 1711 if (Args.hasArg(OPT_fno_operator_names)) 1712 Opts.CXXOperatorNames = 0; 1713 1714 if (Args.hasArg(OPT_fcuda_is_device)) 1715 Opts.CUDAIsDevice = 1; 1716 1717 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1718 Opts.CUDAAllowVariadicFunctions = 1; 1719 1720 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1721 Opts.CUDAHostDeviceConstexpr = 0; 1722 1723 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1724 Opts.CUDADeviceFlushDenormalsToZero = 1; 1725 1726 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1727 Opts.CUDADeviceApproxTranscendentals = 1; 1728 1729 if (Opts.ObjC1) { 1730 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1731 StringRef value = arg->getValue(); 1732 if (Opts.ObjCRuntime.tryParse(value)) 1733 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1734 } 1735 1736 if (Args.hasArg(OPT_fobjc_gc_only)) 1737 Opts.setGC(LangOptions::GCOnly); 1738 else if (Args.hasArg(OPT_fobjc_gc)) 1739 Opts.setGC(LangOptions::HybridGC); 1740 else if (Args.hasArg(OPT_fobjc_arc)) { 1741 Opts.ObjCAutoRefCount = 1; 1742 if (!Opts.ObjCRuntime.allowsARC()) 1743 Diags.Report(diag::err_arc_unsupported_on_runtime); 1744 } 1745 1746 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 1747 // whether the feature is actually enabled. This is predominantly 1748 // determined by -fobjc-runtime, but we allow it to be overridden 1749 // from the command line for testing purposes. 1750 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1751 Opts.ObjCWeakRuntime = 1; 1752 else 1753 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 1754 1755 // ObjCWeak determines whether __weak is actually enabled. 1756 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 1757 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 1758 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 1759 assert(!Opts.ObjCWeak); 1760 } else if (Opts.getGC() != LangOptions::NonGC) { 1761 Diags.Report(diag::err_objc_weak_with_gc); 1762 } else if (!Opts.ObjCWeakRuntime) { 1763 Diags.Report(diag::err_objc_weak_unsupported); 1764 } else { 1765 Opts.ObjCWeak = 1; 1766 } 1767 } else if (Opts.ObjCAutoRefCount) { 1768 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 1769 } 1770 1771 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1772 Opts.ObjCInferRelatedResultType = 0; 1773 1774 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1775 Opts.ObjCSubscriptingLegacyRuntime = 1776 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1777 } 1778 1779 if (Args.hasArg(OPT_fgnu89_inline)) { 1780 if (Opts.CPlusPlus) 1781 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline" 1782 << "C++/ObjC++"; 1783 else 1784 Opts.GNUInline = 1; 1785 } 1786 1787 if (Args.hasArg(OPT_fapple_kext)) { 1788 if (!Opts.CPlusPlus) 1789 Diags.Report(diag::warn_c_kext); 1790 else 1791 Opts.AppleKext = 1; 1792 } 1793 1794 if (Args.hasArg(OPT_print_ivar_layout)) 1795 Opts.ObjCGCBitmapPrint = 1; 1796 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1797 Opts.NoConstantCFStrings = 1; 1798 1799 if (Args.hasArg(OPT_faltivec)) 1800 Opts.AltiVec = 1; 1801 1802 if (Args.hasArg(OPT_fzvector)) 1803 Opts.ZVector = 1; 1804 1805 if (Args.hasArg(OPT_pthread)) 1806 Opts.POSIXThreads = 1; 1807 1808 // The value-visibility mode defaults to "default". 1809 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1810 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1811 } else { 1812 Opts.setValueVisibilityMode(DefaultVisibility); 1813 } 1814 1815 // The type-visibility mode defaults to the value-visibility mode. 1816 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1817 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1818 } else { 1819 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1820 } 1821 1822 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1823 Opts.InlineVisibilityHidden = 1; 1824 1825 if (Args.hasArg(OPT_ftrapv)) { 1826 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1827 // Set the handler, if one is specified. 1828 Opts.OverflowHandler = 1829 Args.getLastArgValue(OPT_ftrapv_handler); 1830 } 1831 else if (Args.hasArg(OPT_fwrapv)) 1832 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1833 1834 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1835 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1836 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1837 Opts.MSCompatibilityVersion = 0; 1838 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1839 VersionTuple VT; 1840 if (VT.tryParse(A->getValue())) 1841 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1842 << A->getValue(); 1843 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1844 VT.getMinor().getValueOr(0) * 100000 + 1845 VT.getSubminor().getValueOr(0); 1846 } 1847 1848 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1849 // is specified, or -std is set to a conforming mode. 1850 // Trigraphs are disabled by default in c++1z onwards. 1851 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1852 Opts.Trigraphs = 1853 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1854 1855 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1856 OPT_fno_dollars_in_identifiers, 1857 Opts.DollarIdents); 1858 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1859 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1860 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1861 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1862 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1863 Opts.ConstStrings); 1864 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1865 Opts.LaxVectorConversions = 0; 1866 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1867 Opts.ThreadsafeStatics = 0; 1868 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1869 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1870 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1871 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1872 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 1873 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1874 1875 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 1876 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1877 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 1878 && Opts.OpenCLVersion >= 200); 1879 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1880 Opts.Coroutines = Args.hasArg(OPT_fcoroutines); 1881 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 1882 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 1883 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1884 Opts.ModulesDeclUse = 1885 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1886 Opts.ModulesLocalVisibility = 1887 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 1888 Opts.ModulesSearchAll = Opts.Modules && 1889 !Args.hasArg(OPT_fno_modules_search_all) && 1890 Args.hasArg(OPT_fmodules_search_all); 1891 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1892 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 1893 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1894 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1895 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1896 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1897 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1898 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1899 if (!Opts.NoBuiltin) 1900 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 1901 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1902 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 1903 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 1904 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1905 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1906 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1907 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1908 Opts.InstantiationDepth = 1909 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags); 1910 Opts.ArrowDepth = 1911 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1912 Opts.ConstexprCallDepth = 1913 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1914 Opts.ConstexprStepLimit = 1915 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1916 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1917 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1918 Opts.NumLargeByValueCopy = 1919 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1920 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1921 Opts.ObjCConstantStringClass = 1922 Args.getLastArgValue(OPT_fconstant_string_class); 1923 Opts.ObjCDefaultSynthProperties = 1924 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 1925 Opts.EncodeExtendedBlockSig = 1926 Args.hasArg(OPT_fencode_extended_block_signature); 1927 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1928 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 1929 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 1930 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 1931 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 1932 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 1933 Opts.Static = Args.hasArg(OPT_static_define); 1934 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 1935 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 1936 || Args.hasArg(OPT_fdump_record_layouts); 1937 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1938 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1939 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1940 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 1941 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 1942 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 1943 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 1944 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 1945 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 1946 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 1947 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 1948 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 1949 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 1950 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 1951 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 1952 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 1953 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 1954 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 1955 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 1956 // is enabled. 1957 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 1958 | Opts.NativeHalfArgsAndReturns; 1959 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 1960 1961 // __declspec is enabled by default for the PS4 by the driver, and also 1962 // enabled for Microsoft Extensions or Borland Extensions, here. 1963 // 1964 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 1965 // CUDA extension, however it is required for supporting cuda_builtin_vars.h, 1966 // which uses __declspec(property). Once that has been rewritten in terms of 1967 // something more generic, remove the Opts.CUDA term here. 1968 Opts.DeclSpecKeyword = 1969 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 1970 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 1971 1972 // For now, we only support local submodule visibility in C++ (because we 1973 // heavily depend on the ODR for merging redefinitions). 1974 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) 1975 Diags.Report(diag::err_drv_argument_not_allowed_with) 1976 << "-fmodules-local-submodule-visibility" << "C"; 1977 1978 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 1979 switch (llvm::StringSwitch<unsigned>(A->getValue()) 1980 .Case("target", LangOptions::ASMM_Target) 1981 .Case("no", LangOptions::ASMM_Off) 1982 .Case("yes", LangOptions::ASMM_On) 1983 .Default(255)) { 1984 default: 1985 Diags.Report(diag::err_drv_invalid_value) 1986 << "-faddress-space-map-mangling=" << A->getValue(); 1987 break; 1988 case LangOptions::ASMM_Target: 1989 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 1990 break; 1991 case LangOptions::ASMM_On: 1992 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 1993 break; 1994 case LangOptions::ASMM_Off: 1995 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 1996 break; 1997 } 1998 } 1999 2000 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2001 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2002 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2003 A->getValue()) 2004 .Case("single", 2005 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2006 .Case("multiple", 2007 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2008 .Case("virtual", 2009 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2010 .Default(LangOptions::PPTMK_BestCase); 2011 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2012 Diags.Report(diag::err_drv_invalid_value) 2013 << "-fms-memptr-rep=" << A->getValue(); 2014 2015 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2016 } 2017 2018 // Check for MS default calling conventions being specified. 2019 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2020 LangOptions::DefaultCallingConvention DefaultCC = 2021 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2022 A->getValue()) 2023 .Case("cdecl", LangOptions::DCC_CDecl) 2024 .Case("fastcall", LangOptions::DCC_FastCall) 2025 .Case("stdcall", LangOptions::DCC_StdCall) 2026 .Case("vectorcall", LangOptions::DCC_VectorCall) 2027 .Default(LangOptions::DCC_None); 2028 if (DefaultCC == LangOptions::DCC_None) 2029 Diags.Report(diag::err_drv_invalid_value) 2030 << "-fdefault-calling-conv=" << A->getValue(); 2031 2032 llvm::Triple T(TargetOpts.Triple); 2033 llvm::Triple::ArchType Arch = T.getArch(); 2034 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2035 DefaultCC == LangOptions::DCC_StdCall) && 2036 Arch != llvm::Triple::x86; 2037 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2038 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2039 if (emitError) 2040 Diags.Report(diag::err_drv_argument_not_allowed_with) 2041 << A->getSpelling() << T.getTriple(); 2042 else 2043 Opts.setDefaultCallingConv(DefaultCC); 2044 } 2045 2046 // -mrtd option 2047 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2048 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2049 Diags.Report(diag::err_drv_argument_not_allowed_with) 2050 << A->getSpelling() << "-fdefault-calling-conv"; 2051 else { 2052 llvm::Triple T(TargetOpts.Triple); 2053 if (T.getArch() != llvm::Triple::x86) 2054 Diags.Report(diag::err_drv_argument_not_allowed_with) 2055 << A->getSpelling() << T.getTriple(); 2056 else 2057 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2058 } 2059 } 2060 2061 // Check if -fopenmp is specified. 2062 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2063 Opts.OpenMPUseTLS = 2064 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2065 Opts.OpenMPIsDevice = 2066 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2067 2068 if (Opts.OpenMP) { 2069 int Version = 2070 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2071 if (Version != 0) 2072 Opts.OpenMP = Version; 2073 // Provide diagnostic when a given target is not expected to be an OpenMP 2074 // device or host. 2075 if (!Opts.OpenMPIsDevice) { 2076 switch (T.getArch()) { 2077 default: 2078 break; 2079 // Add unsupported host targets here: 2080 case llvm::Triple::nvptx: 2081 case llvm::Triple::nvptx64: 2082 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2083 << TargetOpts.Triple; 2084 break; 2085 } 2086 } 2087 } 2088 2089 // Get the OpenMP target triples if any. 2090 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2091 2092 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2093 llvm::Triple TT(A->getValue(i)); 2094 2095 if (TT.getArch() == llvm::Triple::UnknownArch) 2096 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2097 else 2098 Opts.OMPTargetTriples.push_back(TT); 2099 } 2100 } 2101 2102 // Get OpenMP host file path if any and report if a non existent file is 2103 // found 2104 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2105 Opts.OMPHostIRFile = A->getValue(); 2106 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2107 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2108 << Opts.OMPHostIRFile; 2109 } 2110 2111 // Record whether the __DEPRECATED define was requested. 2112 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2113 OPT_fno_deprecated_macro, 2114 Opts.Deprecated); 2115 2116 // FIXME: Eliminate this dependency. 2117 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2118 OptSize = getOptimizationLevelSize(Args); 2119 Opts.Optimize = Opt != 0; 2120 Opts.OptimizeSize = OptSize != 0; 2121 2122 // This is the __NO_INLINE__ define, which just depends on things like the 2123 // optimization level and -fno-inline, not actually whether the backend has 2124 // inlining enabled. 2125 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 2126 2127 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2128 Args.hasArg(OPT_cl_fast_relaxed_math); 2129 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2130 Args.hasArg(OPT_cl_finite_math_only) || 2131 Args.hasArg(OPT_cl_fast_relaxed_math); 2132 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2133 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2134 Args.hasArg(OPT_cl_fast_relaxed_math); 2135 2136 Opts.RetainCommentsFromSystemHeaders = 2137 Args.hasArg(OPT_fretain_comments_from_system_headers); 2138 2139 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2140 switch (SSP) { 2141 default: 2142 Diags.Report(diag::err_drv_invalid_value) 2143 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2144 break; 2145 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2146 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2147 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2148 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2149 } 2150 2151 // Parse -fsanitize= arguments. 2152 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2153 Diags, Opts.Sanitize); 2154 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2155 Opts.SanitizeAddressFieldPadding = 2156 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2157 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2158 } 2159 2160 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2161 FileManager &FileMgr, 2162 DiagnosticsEngine &Diags) { 2163 using namespace options; 2164 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2165 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2166 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2167 Opts.TokenCache = A->getValue(); 2168 else 2169 Opts.TokenCache = Opts.ImplicitPTHInclude; 2170 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2171 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2172 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2173 2174 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2175 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2176 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2177 2178 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2179 StringRef Value(A->getValue()); 2180 size_t Comma = Value.find(','); 2181 unsigned Bytes = 0; 2182 unsigned EndOfLine = 0; 2183 2184 if (Comma == StringRef::npos || 2185 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2186 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2187 Diags.Report(diag::err_drv_preamble_format); 2188 else { 2189 Opts.PrecompiledPreambleBytes.first = Bytes; 2190 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2191 } 2192 } 2193 2194 // Add macros from the command line. 2195 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2196 if (A->getOption().matches(OPT_D)) 2197 Opts.addMacroDef(A->getValue()); 2198 else 2199 Opts.addMacroUndef(A->getValue()); 2200 } 2201 2202 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2203 2204 // Add the ordered list of -includes. 2205 for (const Arg *A : Args.filtered(OPT_include)) 2206 Opts.Includes.emplace_back(A->getValue()); 2207 2208 for (const Arg *A : Args.filtered(OPT_chain_include)) 2209 Opts.ChainedIncludes.emplace_back(A->getValue()); 2210 2211 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2212 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2213 2214 if (Split.second.empty()) { 2215 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2216 continue; 2217 } 2218 2219 Opts.addRemappedFile(Split.first, Split.second); 2220 } 2221 2222 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2223 StringRef Name = A->getValue(); 2224 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2225 .Case("libc++", ARCXX_libcxx) 2226 .Case("libstdc++", ARCXX_libstdcxx) 2227 .Case("none", ARCXX_nolib) 2228 .Default(~0U); 2229 if (Library == ~0U) 2230 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2231 else 2232 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2233 } 2234 } 2235 2236 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2237 ArgList &Args, 2238 frontend::ActionKind Action) { 2239 using namespace options; 2240 2241 switch (Action) { 2242 case frontend::ASTDeclList: 2243 case frontend::ASTDump: 2244 case frontend::ASTPrint: 2245 case frontend::ASTView: 2246 case frontend::EmitAssembly: 2247 case frontend::EmitBC: 2248 case frontend::EmitHTML: 2249 case frontend::EmitLLVM: 2250 case frontend::EmitLLVMOnly: 2251 case frontend::EmitCodeGenOnly: 2252 case frontend::EmitObj: 2253 case frontend::FixIt: 2254 case frontend::GenerateModule: 2255 case frontend::GeneratePCH: 2256 case frontend::GeneratePTH: 2257 case frontend::ParseSyntaxOnly: 2258 case frontend::ModuleFileInfo: 2259 case frontend::VerifyPCH: 2260 case frontend::PluginAction: 2261 case frontend::PrintDeclContext: 2262 case frontend::RewriteObjC: 2263 case frontend::RewriteTest: 2264 case frontend::RunAnalysis: 2265 case frontend::MigrateSource: 2266 Opts.ShowCPP = 0; 2267 break; 2268 2269 case frontend::DumpRawTokens: 2270 case frontend::DumpTokens: 2271 case frontend::InitOnly: 2272 case frontend::PrintPreamble: 2273 case frontend::PrintPreprocessedInput: 2274 case frontend::RewriteMacros: 2275 case frontend::RunPreprocessorOnly: 2276 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2277 break; 2278 } 2279 2280 Opts.ShowComments = Args.hasArg(OPT_C); 2281 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2282 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2283 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2284 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2285 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2286 } 2287 2288 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2289 DiagnosticsEngine &Diags) { 2290 using namespace options; 2291 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2292 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2293 StringRef Value = A->getValue(); 2294 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2295 .Case("default", llvm::EABI::Default) 2296 .Case("4", llvm::EABI::EABI4) 2297 .Case("5", llvm::EABI::EABI5) 2298 .Case("gnu", llvm::EABI::GNU) 2299 .Default(llvm::EABI::Unknown); 2300 if (EABIVersion == llvm::EABI::Unknown) 2301 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2302 << Value; 2303 else 2304 Opts.EABIVersion = Value; 2305 } 2306 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2307 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2308 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2309 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2310 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2311 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2312 // Use the default target triple if unspecified. 2313 if (Opts.Triple.empty()) 2314 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2315 } 2316 2317 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2318 const char *const *ArgBegin, 2319 const char *const *ArgEnd, 2320 DiagnosticsEngine &Diags) { 2321 bool Success = true; 2322 2323 // Parse the arguments. 2324 std::unique_ptr<OptTable> Opts(createDriverOptTable()); 2325 const unsigned IncludedFlagsBitmask = options::CC1Option; 2326 unsigned MissingArgIndex, MissingArgCount; 2327 InputArgList Args = 2328 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2329 MissingArgCount, IncludedFlagsBitmask); 2330 LangOptions &LangOpts = *Res.getLangOpts(); 2331 2332 // Check for missing argument error. 2333 if (MissingArgCount) { 2334 Diags.Report(diag::err_drv_missing_argument) 2335 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2336 Success = false; 2337 } 2338 2339 // Issue errors on unknown arguments. 2340 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2341 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2342 Success = false; 2343 } 2344 2345 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2346 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2347 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2348 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2349 false /*DefaultDiagColor*/); 2350 ParseCommentArgs(LangOpts.CommentOpts, Args); 2351 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2352 // FIXME: We shouldn't have to pass the DashX option around here 2353 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags); 2354 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2355 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2356 Res.getTargetOpts()); 2357 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args); 2358 if (DashX == IK_AST || DashX == IK_LLVM_IR) { 2359 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2360 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2361 // what the input type is. 2362 if (Args.hasArg(OPT_fobjc_arc)) 2363 LangOpts.ObjCAutoRefCount = 1; 2364 // PIClevel and PIELevel are needed during code generation and this should be 2365 // set regardless of the input type. 2366 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2367 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2368 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2369 Diags, LangOpts.Sanitize); 2370 } else { 2371 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2372 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2373 Res.getPreprocessorOpts(), Diags); 2374 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2375 LangOpts.ObjCExceptions = 1; 2376 } 2377 2378 if (LangOpts.CUDA) { 2379 // During CUDA device-side compilation, the aux triple is the 2380 // triple used for host compilation. 2381 if (LangOpts.CUDAIsDevice) 2382 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2383 2384 // Set default FP_CONTRACT to FAST. 2385 if (!Args.hasArg(OPT_ffp_contract)) 2386 Res.getCodeGenOpts().setFPContractMode(CodeGenOptions::FPC_Fast); 2387 } 2388 2389 // FIXME: Override value name discarding when asan or msan is used because the 2390 // backend passes depend on the name of the alloca in order to print out 2391 // names. 2392 Res.getCodeGenOpts().DiscardValueNames &= 2393 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2394 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2395 2396 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2397 // PCH file and find the original header name. Remove the need to do that in 2398 // ParsePreprocessorArgs and remove the FileManager 2399 // parameters from the function and the "FileManager.h" #include. 2400 FileManager FileMgr(Res.getFileSystemOpts()); 2401 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags); 2402 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2403 Res.getFrontendOpts().ProgramAction); 2404 2405 // Turn on -Wspir-compat for SPIR target. 2406 llvm::Triple T(Res.getTargetOpts().Triple); 2407 auto Arch = T.getArch(); 2408 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2409 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2410 } 2411 return Success; 2412 } 2413 2414 std::string CompilerInvocation::getModuleHash() const { 2415 // Note: For QoI reasons, the things we use as a hash here should all be 2416 // dumped via the -module-info flag. 2417 using llvm::hash_code; 2418 using llvm::hash_value; 2419 using llvm::hash_combine; 2420 2421 // Start the signature with the compiler version. 2422 // FIXME: We'd rather use something more cryptographically sound than 2423 // CityHash, but this will do for now. 2424 hash_code code = hash_value(getClangFullRepositoryVersion()); 2425 2426 // Extend the signature with the language options 2427 #define LANGOPT(Name, Bits, Default, Description) \ 2428 code = hash_combine(code, LangOpts->Name); 2429 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2430 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2431 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2432 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2433 #include "clang/Basic/LangOptions.def" 2434 2435 for (StringRef Feature : LangOpts->ModuleFeatures) 2436 code = hash_combine(code, Feature); 2437 2438 // Extend the signature with the target options. 2439 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2440 TargetOpts->ABI); 2441 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2442 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2443 2444 // Extend the signature with preprocessor options. 2445 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2446 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2447 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2448 2449 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2450 I = getPreprocessorOpts().Macros.begin(), 2451 IEnd = getPreprocessorOpts().Macros.end(); 2452 I != IEnd; ++I) { 2453 // If we're supposed to ignore this macro for the purposes of modules, 2454 // don't put it into the hash. 2455 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2456 // Check whether we're ignoring this macro. 2457 StringRef MacroDef = I->first; 2458 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first)) 2459 continue; 2460 } 2461 2462 code = hash_combine(code, I->first, I->second); 2463 } 2464 2465 // Extend the signature with the sysroot and other header search options. 2466 code = hash_combine(code, hsOpts.Sysroot, 2467 hsOpts.ModuleFormat, 2468 hsOpts.UseDebugInfo, 2469 hsOpts.UseBuiltinIncludes, 2470 hsOpts.UseStandardSystemIncludes, 2471 hsOpts.UseStandardCXXIncludes, 2472 hsOpts.UseLibcxx, 2473 hsOpts.ModulesValidateDiagnosticOptions); 2474 code = hash_combine(code, hsOpts.ResourceDir); 2475 2476 // Extend the signature with the user build path. 2477 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2478 2479 // Extend the signature with the module file extensions. 2480 const FrontendOptions &frontendOpts = getFrontendOpts(); 2481 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2482 code = ext->hashExtension(code); 2483 } 2484 2485 // Darwin-specific hack: if we have a sysroot, use the contents and 2486 // modification time of 2487 // $sysroot/System/Library/CoreServices/SystemVersion.plist 2488 // as part of the module hash. 2489 if (!hsOpts.Sysroot.empty()) { 2490 SmallString<128> systemVersionFile; 2491 systemVersionFile += hsOpts.Sysroot; 2492 llvm::sys::path::append(systemVersionFile, "System"); 2493 llvm::sys::path::append(systemVersionFile, "Library"); 2494 llvm::sys::path::append(systemVersionFile, "CoreServices"); 2495 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 2496 2497 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 2498 llvm::MemoryBuffer::getFile(systemVersionFile); 2499 if (buffer) { 2500 code = hash_combine(code, buffer.get()->getBuffer()); 2501 2502 struct stat statBuf; 2503 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 2504 code = hash_combine(code, statBuf.st_mtime); 2505 } 2506 } 2507 2508 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2509 } 2510 2511 namespace clang { 2512 2513 template<typename IntTy> 2514 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2515 IntTy Default, 2516 DiagnosticsEngine *Diags) { 2517 IntTy Res = Default; 2518 if (Arg *A = Args.getLastArg(Id)) { 2519 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2520 if (Diags) 2521 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2522 << A->getValue(); 2523 } 2524 } 2525 return Res; 2526 } 2527 2528 2529 // Declared in clang/Frontend/Utils.h. 2530 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2531 DiagnosticsEngine *Diags) { 2532 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2533 } 2534 2535 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2536 uint64_t Default, 2537 DiagnosticsEngine *Diags) { 2538 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2539 } 2540 2541 void BuryPointer(const void *Ptr) { 2542 // This function may be called only a small fixed amount of times per each 2543 // invocation, otherwise we do actually have a leak which we want to report. 2544 // If this function is called more than kGraveYardMaxSize times, the pointers 2545 // will not be properly buried and a leak detector will report a leak, which 2546 // is what we want in such case. 2547 static const size_t kGraveYardMaxSize = 16; 2548 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2549 static std::atomic<unsigned> GraveYardSize; 2550 unsigned Idx = GraveYardSize++; 2551 if (Idx >= kGraveYardMaxSize) 2552 return; 2553 GraveYard[Idx] = Ptr; 2554 } 2555 2556 IntrusiveRefCntPtr<vfs::FileSystem> 2557 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2558 DiagnosticsEngine &Diags) { 2559 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2560 return vfs::getRealFileSystem(); 2561 2562 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2563 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2564 // earlier vfs files are on the bottom 2565 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2566 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2567 llvm::MemoryBuffer::getFile(File); 2568 if (!Buffer) { 2569 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2570 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2571 } 2572 2573 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2574 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2575 if (!FS.get()) { 2576 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2577 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2578 } 2579 Overlay->pushOverlay(FS); 2580 } 2581 return Overlay; 2582 } 2583 } // end namespace clang 2584