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.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 242 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 243 244 Opts.visualizeExplodedGraphWithGraphViz = 245 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 246 Opts.visualizeExplodedGraphWithUbiGraph = 247 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 248 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 249 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 250 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 251 Opts.AnalyzeNestedBlocks = 252 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 253 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 254 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 255 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 256 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 257 Opts.maxBlockVisitOnPath = 258 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 259 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 260 Opts.InlineMaxStackDepth = 261 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 262 Opts.InlineMaxStackDepth, Diags); 263 264 Opts.CheckersControlList.clear(); 265 for (const Arg *A : 266 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 267 A->claim(); 268 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 269 // We can have a list of comma separated checker names, e.g: 270 // '-analyzer-checker=cocoa,unix' 271 StringRef checkerList = A->getValue(); 272 SmallVector<StringRef, 4> checkers; 273 checkerList.split(checkers, ","); 274 for (StringRef checker : checkers) 275 Opts.CheckersControlList.emplace_back(checker, enable); 276 } 277 278 // Go through the analyzer configuration options. 279 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 280 A->claim(); 281 // We can have a list of comma separated config names, e.g: 282 // '-analyzer-config key1=val1,key2=val2' 283 StringRef configList = A->getValue(); 284 SmallVector<StringRef, 4> configVals; 285 configList.split(configVals, ","); 286 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 287 StringRef key, val; 288 std::tie(key, val) = configVals[i].split("="); 289 if (val.empty()) { 290 Diags.Report(SourceLocation(), 291 diag::err_analyzer_config_no_value) << configVals[i]; 292 Success = false; 293 break; 294 } 295 if (val.find('=') != StringRef::npos) { 296 Diags.Report(SourceLocation(), 297 diag::err_analyzer_config_multiple_values) 298 << configVals[i]; 299 Success = false; 300 break; 301 } 302 Opts.Config[key] = val; 303 } 304 } 305 306 return Success; 307 } 308 309 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 310 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 311 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 312 return true; 313 } 314 315 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 316 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 317 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 318 } 319 320 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 321 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 322 StringRef Value = A->getValue(); 323 if (Value == "small" || Value == "kernel" || Value == "medium" || 324 Value == "large") 325 return Value; 326 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 327 } 328 return "default"; 329 } 330 331 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 332 /// It returns a pointer to the newly generated Regex instance. 333 static std::shared_ptr<llvm::Regex> 334 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 335 Arg *RpassArg) { 336 StringRef Val = RpassArg->getValue(); 337 std::string RegexError; 338 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 339 if (!Pattern->isValid(RegexError)) { 340 Diags.Report(diag::err_drv_optimization_remark_pattern) 341 << RegexError << RpassArg->getAsString(Args); 342 Pattern.reset(); 343 } 344 return Pattern; 345 } 346 347 static bool parseDiagnosticLevelMask(StringRef FlagName, 348 const std::vector<std::string> &Levels, 349 DiagnosticsEngine *Diags, 350 DiagnosticLevelMask &M) { 351 bool Success = true; 352 for (const auto &Level : Levels) { 353 DiagnosticLevelMask const PM = 354 llvm::StringSwitch<DiagnosticLevelMask>(Level) 355 .Case("note", DiagnosticLevelMask::Note) 356 .Case("remark", DiagnosticLevelMask::Remark) 357 .Case("warning", DiagnosticLevelMask::Warning) 358 .Case("error", DiagnosticLevelMask::Error) 359 .Default(DiagnosticLevelMask::None); 360 if (PM == DiagnosticLevelMask::None) { 361 Success = false; 362 if (Diags) 363 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 364 } 365 M = M | PM; 366 } 367 return Success; 368 } 369 370 static void parseSanitizerKinds(StringRef FlagName, 371 const std::vector<std::string> &Sanitizers, 372 DiagnosticsEngine &Diags, SanitizerSet &S) { 373 for (const auto &Sanitizer : Sanitizers) { 374 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 375 if (K == 0) 376 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 377 else 378 S.set(K, true); 379 } 380 } 381 382 // Set the profile kind for fprofile-instrument. 383 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 384 DiagnosticsEngine &Diags) { 385 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 386 if (A == nullptr) 387 return; 388 StringRef S = A->getValue(); 389 unsigned I = llvm::StringSwitch<unsigned>(S) 390 .Case("none", CodeGenOptions::ProfileNone) 391 .Case("clang", CodeGenOptions::ProfileClangInstr) 392 .Case("llvm", CodeGenOptions::ProfileIRInstr) 393 .Default(~0U); 394 if (I == ~0U) { 395 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 396 << S; 397 return; 398 } 399 CodeGenOptions::ProfileInstrKind Instrumentor = 400 static_cast<CodeGenOptions::ProfileInstrKind>(I); 401 Opts.setProfileInstr(Instrumentor); 402 } 403 404 // Set the profile kind using fprofile-instrument-use-path. 405 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 406 const Twine &ProfileName) { 407 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 408 // In error, return silently and let Clang PGOUse report the error message. 409 if (auto E = ReaderOrErr.takeError()) { 410 llvm::consumeError(std::move(E)); 411 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 412 return; 413 } 414 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 415 std::move(ReaderOrErr.get()); 416 if (PGOReader->isIRLevelProfile()) 417 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 418 else 419 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 420 } 421 422 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 423 DiagnosticsEngine &Diags, 424 const TargetOptions &TargetOpts) { 425 using namespace options; 426 bool Success = true; 427 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 428 429 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 430 // TODO: This could be done in Driver 431 unsigned MaxOptLevel = 3; 432 if (OptimizationLevel > MaxOptLevel) { 433 // If the optimization level is not supported, fall back on the default 434 // optimization 435 Diags.Report(diag::warn_drv_optimization_value) 436 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 437 OptimizationLevel = MaxOptLevel; 438 } 439 Opts.OptimizationLevel = OptimizationLevel; 440 441 // We must always run at least the always inlining pass. 442 Opts.setInlining( 443 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 444 : CodeGenOptions::OnlyAlwaysInlining); 445 // -fno-inline-functions overrides OptimizationLevel > 1. 446 Opts.NoInline = Args.hasArg(OPT_fno_inline); 447 if (Arg* InlineArg = Args.getLastArg(options::OPT_finline_functions, 448 options::OPT_finline_hint_functions, 449 options::OPT_fno_inline_functions)) { 450 const Option& InlineOpt = InlineArg->getOption(); 451 if (InlineOpt.matches(options::OPT_finline_functions)) 452 Opts.setInlining(CodeGenOptions::NormalInlining); 453 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 454 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 455 else 456 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 457 } 458 459 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 460 StringRef Name = A->getValue(); 461 if (Name == "Accelerate") 462 Opts.setVecLib(CodeGenOptions::Accelerate); 463 else if (Name == "SVML") 464 Opts.setVecLib(CodeGenOptions::SVML); 465 else if (Name == "none") 466 Opts.setVecLib(CodeGenOptions::NoLibrary); 467 else 468 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 469 } 470 471 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 472 unsigned Val = 473 llvm::StringSwitch<unsigned>(A->getValue()) 474 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 475 .Case("limited", codegenoptions::LimitedDebugInfo) 476 .Case("standalone", codegenoptions::FullDebugInfo) 477 .Default(~0U); 478 if (Val == ~0U) 479 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 480 << A->getValue(); 481 else 482 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 483 } 484 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 485 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 486 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 487 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 488 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 489 .Default(~0U); 490 if (Val == ~0U) 491 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 492 << A->getValue(); 493 else 494 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 495 } 496 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 497 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 498 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 499 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 500 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 501 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 502 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 503 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 504 Opts.DebugExplicitImport = Triple.isPS4CPU(); 505 506 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 507 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 508 509 if (const Arg *A = 510 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 511 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 512 513 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 514 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 515 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 516 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 517 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 518 OPT_fuse_register_sized_bitfield_access); 519 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 520 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 521 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 522 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 523 Opts.NoCommon = Args.hasArg(OPT_fno_common); 524 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 525 Opts.OptimizeSize = getOptimizationLevelSize(Args); 526 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 527 Args.hasArg(OPT_ffreestanding)); 528 if (Opts.SimplifyLibCalls) 529 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 530 Opts.UnrollLoops = 531 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 532 (Opts.OptimizationLevel > 1)); 533 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 534 535 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 536 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 537 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 538 539 setPGOInstrumentor(Opts, Args, Diags); 540 Opts.InstrProfileOutput = 541 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 542 Opts.ProfileInstrumentUsePath = 543 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 544 if (!Opts.ProfileInstrumentUsePath.empty()) 545 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 546 547 Opts.CoverageMapping = 548 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 549 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 550 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 551 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 552 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 553 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 554 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 555 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 556 Opts.CodeModel = getCodeModel(Args, Diags); 557 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 558 Opts.DisableFPElim = 559 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 560 Opts.DisableFree = Args.hasArg(OPT_disable_free); 561 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 562 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 563 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 564 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 565 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 566 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 567 Args.hasArg(OPT_cl_finite_math_only) || 568 Args.hasArg(OPT_cl_fast_relaxed_math)); 569 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 570 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 571 Args.hasArg(OPT_cl_finite_math_only) || 572 Args.hasArg(OPT_cl_fast_relaxed_math)); 573 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 574 Args.hasArg(OPT_cl_no_signed_zeros)); 575 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 576 Opts.CorrectlyRoundedDivSqrt = 577 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 578 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 579 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 580 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 581 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 582 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 583 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 584 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 585 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 586 Opts.IncrementalLinkerCompatible = 587 Args.hasArg(OPT_mincremental_linker_compatible); 588 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 589 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 590 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 591 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 592 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 593 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 594 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 595 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 596 Args.hasArg(OPT_cl_fast_relaxed_math); 597 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 598 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 599 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 600 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 601 Diags.Report(diag::err_drv_invalid_value) 602 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 603 << Opts.ThreadModel; 604 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 605 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 606 607 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 608 OPT_fno_function_sections, false); 609 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 610 OPT_fno_data_sections, false); 611 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 612 OPT_fno_unique_section_names, true); 613 614 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 615 616 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 617 618 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 619 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ); 620 Opts.EmitSummaryIndex = A && A->containsValue("thin"); 621 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 622 if (IK != IK_LLVM_IR) 623 Diags.Report(diag::err_drv_argument_only_allowed_with) 624 << A->getAsString(Args) << "-x ir"; 625 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 626 } 627 628 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 629 630 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 631 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 632 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 633 634 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 635 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 636 637 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 638 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 639 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 640 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 641 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 642 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 643 Opts.CoverageNoFunctionNamesInData = 644 Args.hasArg(OPT_coverage_no_function_names_in_data); 645 Opts.CoverageExitBlockBeforeBody = 646 Args.hasArg(OPT_coverage_exit_block_before_body); 647 if (Args.hasArg(OPT_coverage_version_EQ)) { 648 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 649 if (CoverageVersion.size() != 4) { 650 Diags.Report(diag::err_drv_invalid_value) 651 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 652 << CoverageVersion; 653 } else { 654 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 655 } 656 } 657 } 658 // Handle -fembed-bitcode option. 659 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 660 StringRef Name = A->getValue(); 661 unsigned Model = llvm::StringSwitch<unsigned>(Name) 662 .Case("off", CodeGenOptions::Embed_Off) 663 .Case("all", CodeGenOptions::Embed_All) 664 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 665 .Case("marker", CodeGenOptions::Embed_Marker) 666 .Default(~0U); 667 if (Model == ~0U) { 668 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 669 Success = false; 670 } else 671 Opts.setEmbedBitcode( 672 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 673 } 674 // FIXME: For backend options that are not yet recorded as function 675 // attributes in the IR, keep track of them so we can embed them in a 676 // separate data section and use them when building the bitcode. 677 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 678 for (const auto &A : Args) { 679 // Do not encode output and input. 680 if (A->getOption().getID() == options::OPT_o || 681 A->getOption().getID() == options::OPT_INPUT || 682 A->getOption().getID() == options::OPT_x || 683 A->getOption().getID() == options::OPT_fembed_bitcode || 684 (A->getOption().getGroup().isValid() && 685 A->getOption().getGroup().getID() == options::OPT_W_Group)) 686 continue; 687 ArgStringList ASL; 688 A->render(Args, ASL); 689 for (const auto &arg : ASL) { 690 StringRef ArgStr(arg); 691 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 692 // using \00 to seperate each commandline options. 693 Opts.CmdArgs.push_back('\0'); 694 } 695 } 696 } 697 698 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 699 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 700 Opts.XRayInstructionThreshold = 701 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_, 200, Diags); 702 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 703 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 704 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 705 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 706 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 707 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 708 unsigned LinkFlags = llvm::Linker::Flags::None; 709 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) 710 LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded | 711 llvm::Linker::Flags::InternalizeLinkedSymbols; 712 Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue())); 713 } 714 Opts.SanitizeCoverageType = 715 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 716 Opts.SanitizeCoverageIndirectCalls = 717 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 718 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 719 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 720 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 721 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 722 Opts.SanitizeCoverage8bitCounters = 723 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 724 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 725 Opts.SanitizeMemoryTrackOrigins = 726 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 727 Opts.SanitizeMemoryUseAfterDtor = 728 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 729 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 730 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 731 Opts.SanitizeAddressUseAfterScope = 732 Args.hasArg(OPT_fsanitize_address_use_after_scope); 733 Opts.SSPBufferSize = 734 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 735 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 736 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 737 StringRef Val = A->getValue(); 738 unsigned StackAlignment = Opts.StackAlignment; 739 Val.getAsInteger(10, StackAlignment); 740 Opts.StackAlignment = StackAlignment; 741 } 742 743 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 744 StringRef Val = A->getValue(); 745 unsigned StackProbeSize = Opts.StackProbeSize; 746 Val.getAsInteger(0, StackProbeSize); 747 Opts.StackProbeSize = StackProbeSize; 748 } 749 750 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 751 StringRef Name = A->getValue(); 752 unsigned Method = llvm::StringSwitch<unsigned>(Name) 753 .Case("legacy", CodeGenOptions::Legacy) 754 .Case("non-legacy", CodeGenOptions::NonLegacy) 755 .Case("mixed", CodeGenOptions::Mixed) 756 .Default(~0U); 757 if (Method == ~0U) { 758 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 759 Success = false; 760 } else { 761 Opts.setObjCDispatchMethod( 762 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 763 } 764 } 765 766 Opts.EmulatedTLS = 767 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 768 769 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 770 StringRef Name = A->getValue(); 771 unsigned Model = llvm::StringSwitch<unsigned>(Name) 772 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 773 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 774 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 775 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 776 .Default(~0U); 777 if (Model == ~0U) { 778 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 779 Success = false; 780 } else { 781 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 782 } 783 } 784 785 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 786 StringRef Val = A->getValue(); 787 if (Val == "fast") 788 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 789 else if (Val == "on") 790 Opts.setFPContractMode(CodeGenOptions::FPC_On); 791 else if (Val == "off") 792 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 793 else 794 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 795 } 796 797 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 798 if (A->getOption().matches(OPT_fpcc_struct_return)) { 799 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 800 } else { 801 assert(A->getOption().matches(OPT_freg_struct_return)); 802 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 803 } 804 } 805 806 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 807 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 808 bool NeedLocTracking = false; 809 810 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 811 Opts.OptimizationRemarkPattern = 812 GenerateOptimizationRemarkRegex(Diags, Args, A); 813 NeedLocTracking = true; 814 } 815 816 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 817 Opts.OptimizationRemarkMissedPattern = 818 GenerateOptimizationRemarkRegex(Diags, Args, A); 819 NeedLocTracking = true; 820 } 821 822 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 823 Opts.OptimizationRemarkAnalysisPattern = 824 GenerateOptimizationRemarkRegex(Diags, Args, A); 825 NeedLocTracking = true; 826 } 827 828 // If the user requested to use a sample profile for PGO, then the 829 // backend will need to track source location information so the profile 830 // can be incorporated into the IR. 831 if (!Opts.SampleProfileFile.empty()) 832 NeedLocTracking = true; 833 834 // If the user requested a flag that requires source locations available in 835 // the backend, make sure that the backend tracks source location information. 836 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 837 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 838 839 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 840 841 // Parse -fsanitize-recover= arguments. 842 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 843 parseSanitizerKinds("-fsanitize-recover=", 844 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 845 Opts.SanitizeRecover); 846 parseSanitizerKinds("-fsanitize-trap=", 847 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 848 Opts.SanitizeTrap); 849 850 Opts.CudaGpuBinaryFileNames = 851 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 852 853 Opts.Backchain = Args.hasArg(OPT_mbackchain); 854 855 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 856 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 857 858 return Success; 859 } 860 861 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 862 ArgList &Args) { 863 using namespace options; 864 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 865 Opts.Targets = Args.getAllArgValues(OPT_MT); 866 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 867 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 868 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 869 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 870 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 871 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 872 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 873 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 874 Opts.ModuleDependencyOutputDir = 875 Args.getLastArgValue(OPT_module_dependency_dir); 876 if (Args.hasArg(OPT_MV)) 877 Opts.OutputFormat = DependencyOutputFormat::NMake; 878 // Add sanitizer blacklists as extra dependencies. 879 // They won't be discovered by the regular preprocessor, so 880 // we let make / ninja to know about this implicit dependency. 881 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 882 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 883 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 884 ModuleFiles.end()); 885 } 886 887 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 888 // Color diagnostics default to auto ("on" if terminal supports) in the driver 889 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 890 // Support both clang's -f[no-]color-diagnostics and gcc's 891 // -f[no-]diagnostics-colors[=never|always|auto]. 892 enum { 893 Colors_On, 894 Colors_Off, 895 Colors_Auto 896 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 897 for (Arg *A : Args) { 898 const Option &O = A->getOption(); 899 if (!O.matches(options::OPT_fcolor_diagnostics) && 900 !O.matches(options::OPT_fdiagnostics_color) && 901 !O.matches(options::OPT_fno_color_diagnostics) && 902 !O.matches(options::OPT_fno_diagnostics_color) && 903 !O.matches(options::OPT_fdiagnostics_color_EQ)) 904 continue; 905 906 if (O.matches(options::OPT_fcolor_diagnostics) || 907 O.matches(options::OPT_fdiagnostics_color)) { 908 ShowColors = Colors_On; 909 } else if (O.matches(options::OPT_fno_color_diagnostics) || 910 O.matches(options::OPT_fno_diagnostics_color)) { 911 ShowColors = Colors_Off; 912 } else { 913 assert(O.matches(options::OPT_fdiagnostics_color_EQ)); 914 StringRef Value(A->getValue()); 915 if (Value == "always") 916 ShowColors = Colors_On; 917 else if (Value == "never") 918 ShowColors = Colors_Off; 919 else if (Value == "auto") 920 ShowColors = Colors_Auto; 921 } 922 } 923 if (ShowColors == Colors_On || 924 (ShowColors == Colors_Auto && llvm::sys::Process::StandardErrHasColors())) 925 return true; 926 return false; 927 } 928 929 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 930 DiagnosticsEngine *Diags, 931 bool DefaultDiagColor) { 932 using namespace options; 933 bool Success = true; 934 935 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 936 if (Arg *A = 937 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 938 Opts.DiagnosticSerializationFile = A->getValue(); 939 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 940 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 941 Opts.Pedantic = Args.hasArg(OPT_pedantic); 942 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 943 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 944 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 945 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 946 OPT_fno_show_column, 947 /*Default=*/true); 948 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 949 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 950 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 951 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 952 953 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 954 955 // Default behavior is to not to show note include stacks. 956 Opts.ShowNoteIncludeStack = false; 957 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 958 OPT_fno_diagnostics_show_note_include_stack)) 959 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 960 Opts.ShowNoteIncludeStack = true; 961 962 StringRef ShowOverloads = 963 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 964 if (ShowOverloads == "best") 965 Opts.setShowOverloads(Ovl_Best); 966 else if (ShowOverloads == "all") 967 Opts.setShowOverloads(Ovl_All); 968 else { 969 Success = false; 970 if (Diags) 971 Diags->Report(diag::err_drv_invalid_value) 972 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 973 << ShowOverloads; 974 } 975 976 StringRef ShowCategory = 977 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 978 if (ShowCategory == "none") 979 Opts.ShowCategories = 0; 980 else if (ShowCategory == "id") 981 Opts.ShowCategories = 1; 982 else if (ShowCategory == "name") 983 Opts.ShowCategories = 2; 984 else { 985 Success = false; 986 if (Diags) 987 Diags->Report(diag::err_drv_invalid_value) 988 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 989 << ShowCategory; 990 } 991 992 StringRef Format = 993 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 994 if (Format == "clang") 995 Opts.setFormat(DiagnosticOptions::Clang); 996 else if (Format == "msvc") 997 Opts.setFormat(DiagnosticOptions::MSVC); 998 else if (Format == "msvc-fallback") { 999 Opts.setFormat(DiagnosticOptions::MSVC); 1000 Opts.CLFallbackMode = true; 1001 } else if (Format == "vi") 1002 Opts.setFormat(DiagnosticOptions::Vi); 1003 else { 1004 Success = false; 1005 if (Diags) 1006 Diags->Report(diag::err_drv_invalid_value) 1007 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1008 << Format; 1009 } 1010 1011 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1012 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1013 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1014 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1015 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1016 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1017 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1018 Diags, DiagMask); 1019 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1020 DiagMask = DiagnosticLevelMask::All; 1021 Opts.setVerifyIgnoreUnexpected(DiagMask); 1022 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1023 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1024 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1025 Opts.MacroBacktraceLimit = 1026 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1027 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1028 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1029 Args, OPT_ftemplate_backtrace_limit, 1030 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1031 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1032 Args, OPT_fconstexpr_backtrace_limit, 1033 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1034 Opts.SpellCheckingLimit = getLastArgIntValue( 1035 Args, OPT_fspell_checking_limit, 1036 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1037 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1038 DiagnosticOptions::DefaultTabStop, Diags); 1039 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1040 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1041 if (Diags) 1042 Diags->Report(diag::warn_ignoring_ftabstop_value) 1043 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1044 } 1045 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1046 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1047 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1048 1049 return Success; 1050 } 1051 1052 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1053 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1054 } 1055 1056 /// Parse the argument to the -ftest-module-file-extension 1057 /// command-line argument. 1058 /// 1059 /// \returns true on error, false on success. 1060 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1061 std::string &BlockName, 1062 unsigned &MajorVersion, 1063 unsigned &MinorVersion, 1064 bool &Hashed, 1065 std::string &UserInfo) { 1066 SmallVector<StringRef, 5> Args; 1067 Arg.split(Args, ':', 5); 1068 if (Args.size() < 5) 1069 return true; 1070 1071 BlockName = Args[0]; 1072 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1073 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1074 if (Args[3].getAsInteger(2, Hashed)) return true; 1075 if (Args.size() > 4) 1076 UserInfo = Args[4]; 1077 return false; 1078 } 1079 1080 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1081 DiagnosticsEngine &Diags) { 1082 using namespace options; 1083 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1084 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1085 switch (A->getOption().getID()) { 1086 default: 1087 llvm_unreachable("Invalid option in group!"); 1088 case OPT_ast_list: 1089 Opts.ProgramAction = frontend::ASTDeclList; break; 1090 case OPT_ast_dump: 1091 case OPT_ast_dump_lookups: 1092 Opts.ProgramAction = frontend::ASTDump; break; 1093 case OPT_ast_print: 1094 Opts.ProgramAction = frontend::ASTPrint; break; 1095 case OPT_ast_view: 1096 Opts.ProgramAction = frontend::ASTView; break; 1097 case OPT_dump_raw_tokens: 1098 Opts.ProgramAction = frontend::DumpRawTokens; break; 1099 case OPT_dump_tokens: 1100 Opts.ProgramAction = frontend::DumpTokens; break; 1101 case OPT_S: 1102 Opts.ProgramAction = frontend::EmitAssembly; break; 1103 case OPT_emit_llvm_bc: 1104 Opts.ProgramAction = frontend::EmitBC; break; 1105 case OPT_emit_html: 1106 Opts.ProgramAction = frontend::EmitHTML; break; 1107 case OPT_emit_llvm: 1108 Opts.ProgramAction = frontend::EmitLLVM; break; 1109 case OPT_emit_llvm_only: 1110 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1111 case OPT_emit_codegen_only: 1112 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1113 case OPT_emit_obj: 1114 Opts.ProgramAction = frontend::EmitObj; break; 1115 case OPT_fixit_EQ: 1116 Opts.FixItSuffix = A->getValue(); 1117 // fall-through! 1118 case OPT_fixit: 1119 Opts.ProgramAction = frontend::FixIt; break; 1120 case OPT_emit_module: 1121 Opts.ProgramAction = frontend::GenerateModule; break; 1122 case OPT_emit_module_interface: 1123 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1124 case OPT_emit_pch: 1125 Opts.ProgramAction = frontend::GeneratePCH; break; 1126 case OPT_emit_pth: 1127 Opts.ProgramAction = frontend::GeneratePTH; break; 1128 case OPT_init_only: 1129 Opts.ProgramAction = frontend::InitOnly; break; 1130 case OPT_fsyntax_only: 1131 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1132 case OPT_module_file_info: 1133 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1134 case OPT_verify_pch: 1135 Opts.ProgramAction = frontend::VerifyPCH; break; 1136 case OPT_print_decl_contexts: 1137 Opts.ProgramAction = frontend::PrintDeclContext; break; 1138 case OPT_print_preamble: 1139 Opts.ProgramAction = frontend::PrintPreamble; break; 1140 case OPT_E: 1141 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1142 case OPT_rewrite_macros: 1143 Opts.ProgramAction = frontend::RewriteMacros; break; 1144 case OPT_rewrite_objc: 1145 Opts.ProgramAction = frontend::RewriteObjC; break; 1146 case OPT_rewrite_test: 1147 Opts.ProgramAction = frontend::RewriteTest; break; 1148 case OPT_analyze: 1149 Opts.ProgramAction = frontend::RunAnalysis; break; 1150 case OPT_migrate: 1151 Opts.ProgramAction = frontend::MigrateSource; break; 1152 case OPT_Eonly: 1153 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1154 } 1155 } 1156 1157 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1158 Opts.Plugins.emplace_back(A->getValue(0)); 1159 Opts.ProgramAction = frontend::PluginAction; 1160 Opts.ActionName = A->getValue(); 1161 } 1162 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1163 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1164 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1165 1166 for (const std::string &Arg : 1167 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1168 std::string BlockName; 1169 unsigned MajorVersion; 1170 unsigned MinorVersion; 1171 bool Hashed; 1172 std::string UserInfo; 1173 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1174 MinorVersion, Hashed, UserInfo)) { 1175 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1176 1177 continue; 1178 } 1179 1180 // Add the testing module file extension. 1181 Opts.ModuleFileExtensions.push_back( 1182 new TestModuleFileExtension(BlockName, MajorVersion, MinorVersion, 1183 Hashed, UserInfo)); 1184 } 1185 1186 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1187 Opts.CodeCompletionAt = 1188 ParsedSourceLocation::FromString(A->getValue()); 1189 if (Opts.CodeCompletionAt.FileName.empty()) 1190 Diags.Report(diag::err_drv_invalid_value) 1191 << A->getAsString(Args) << A->getValue(); 1192 } 1193 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1194 1195 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1196 Opts.Plugins = Args.getAllArgValues(OPT_load); 1197 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1198 Opts.ShowHelp = Args.hasArg(OPT_help); 1199 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1200 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1201 Opts.ShowVersion = Args.hasArg(OPT_version); 1202 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1203 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1204 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1205 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1206 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1207 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1208 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1209 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1210 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1211 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1212 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1213 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1214 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 1215 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1216 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1217 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1218 1219 Opts.CodeCompleteOpts.IncludeMacros 1220 = Args.hasArg(OPT_code_completion_macros); 1221 Opts.CodeCompleteOpts.IncludeCodePatterns 1222 = Args.hasArg(OPT_code_completion_patterns); 1223 Opts.CodeCompleteOpts.IncludeGlobals 1224 = !Args.hasArg(OPT_no_code_completion_globals); 1225 Opts.CodeCompleteOpts.IncludeBriefComments 1226 = Args.hasArg(OPT_code_completion_brief_comments); 1227 1228 Opts.OverrideRecordLayoutsFile 1229 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1230 Opts.AuxTriple = 1231 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1232 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1233 1234 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1235 OPT_arcmt_modify, 1236 OPT_arcmt_migrate)) { 1237 switch (A->getOption().getID()) { 1238 default: 1239 llvm_unreachable("missed a case"); 1240 case OPT_arcmt_check: 1241 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1242 break; 1243 case OPT_arcmt_modify: 1244 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1245 break; 1246 case OPT_arcmt_migrate: 1247 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1248 break; 1249 } 1250 } 1251 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1252 Opts.ARCMTMigrateReportOut 1253 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1254 Opts.ARCMTMigrateEmitARCErrors 1255 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1256 1257 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1258 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1259 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1260 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1261 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1262 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1263 if (Args.hasArg(OPT_objcmt_migrate_property)) 1264 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1265 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1266 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1267 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1268 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1269 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1270 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1271 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1272 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1273 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1274 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1275 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1276 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1277 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1278 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1279 if (Args.hasArg(OPT_objcmt_atomic_property)) 1280 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1281 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1282 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1283 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1284 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1285 if (Args.hasArg(OPT_objcmt_migrate_all)) 1286 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1287 1288 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1289 1290 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1291 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1292 Diags.Report(diag::err_drv_argument_not_allowed_with) 1293 << "ARC migration" << "ObjC migration"; 1294 } 1295 1296 InputKind DashX = IK_None; 1297 if (const Arg *A = Args.getLastArg(OPT_x)) { 1298 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 1299 .Case("c", IK_C) 1300 .Case("cl", IK_OpenCL) 1301 .Case("cuda", IK_CUDA) 1302 .Case("c++", IK_CXX) 1303 .Case("c++-module", IK_CXX) 1304 .Case("objective-c", IK_ObjC) 1305 .Case("objective-c++", IK_ObjCXX) 1306 .Case("cpp-output", IK_PreprocessedC) 1307 .Case("assembler-with-cpp", IK_Asm) 1308 .Case("c++-cpp-output", IK_PreprocessedCXX) 1309 .Case("c++-module-cpp-output", IK_PreprocessedCXX) 1310 .Case("cuda-cpp-output", IK_PreprocessedCuda) 1311 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1312 .Case("objc-cpp-output", IK_PreprocessedObjC) 1313 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1314 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1315 .Case("c-header", IK_C) 1316 .Case("cl-header", IK_OpenCL) 1317 .Case("objective-c-header", IK_ObjC) 1318 .Case("c++-header", IK_CXX) 1319 .Case("objective-c++-header", IK_ObjCXX) 1320 .Cases("ast", "pcm", IK_AST) 1321 .Case("ir", IK_LLVM_IR) 1322 .Case("renderscript", IK_RenderScript) 1323 .Default(IK_None); 1324 if (DashX == IK_None) 1325 Diags.Report(diag::err_drv_invalid_value) 1326 << A->getAsString(Args) << A->getValue(); 1327 } 1328 1329 // '-' is the default input if none is given. 1330 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1331 Opts.Inputs.clear(); 1332 if (Inputs.empty()) 1333 Inputs.push_back("-"); 1334 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1335 InputKind IK = DashX; 1336 if (IK == IK_None) { 1337 IK = FrontendOptions::getInputKindForExtension( 1338 StringRef(Inputs[i]).rsplit('.').second); 1339 // FIXME: Remove this hack. 1340 if (i == 0) 1341 DashX = IK; 1342 } 1343 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1344 } 1345 1346 return DashX; 1347 } 1348 1349 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1350 void *MainAddr) { 1351 std::string ClangExecutable = 1352 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1353 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1354 1355 // Compute the path to the resource directory. 1356 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1357 SmallString<128> P(Dir); 1358 if (ClangResourceDir != "") 1359 llvm::sys::path::append(P, ClangResourceDir); 1360 else 1361 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1362 "clang", CLANG_VERSION_STRING); 1363 1364 return P.str(); 1365 } 1366 1367 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1368 using namespace options; 1369 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1370 Opts.Verbose = Args.hasArg(OPT_v); 1371 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1372 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1373 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1374 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1375 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1376 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1377 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 1378 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1379 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1380 Opts.AddPrebuiltModulePath(A->getValue()); 1381 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1382 Opts.ModulesValidateDiagnosticOptions = 1383 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1384 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1385 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1386 Opts.ModuleCachePruneInterval = 1387 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1388 Opts.ModuleCachePruneAfter = 1389 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1390 Opts.ModulesValidateOncePerBuildSession = 1391 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1392 Opts.BuildSessionTimestamp = 1393 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1394 Opts.ModulesValidateSystemHeaders = 1395 Args.hasArg(OPT_fmodules_validate_system_headers); 1396 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1397 Opts.ModuleFormat = A->getValue(); 1398 1399 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1400 StringRef MacroDef = A->getValue(); 1401 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first); 1402 } 1403 1404 // Add -I..., -F..., and -index-header-map options in order. 1405 bool IsIndexHeaderMap = false; 1406 bool IsSysrootSpecified = 1407 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1408 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1409 if (A->getOption().matches(OPT_index_header_map)) { 1410 // -index-header-map applies to the next -I or -F. 1411 IsIndexHeaderMap = true; 1412 continue; 1413 } 1414 1415 frontend::IncludeDirGroup Group = 1416 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1417 1418 bool IsFramework = A->getOption().matches(OPT_F); 1419 std::string Path = A->getValue(); 1420 1421 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1422 SmallString<32> Buffer; 1423 llvm::sys::path::append(Buffer, Opts.Sysroot, 1424 llvm::StringRef(A->getValue()).substr(1)); 1425 Path = Buffer.str(); 1426 } 1427 1428 Opts.AddPath(Path.c_str(), Group, IsFramework, 1429 /*IgnoreSysroot*/ true); 1430 IsIndexHeaderMap = false; 1431 } 1432 1433 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1434 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1435 for (const Arg *A : 1436 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1437 if (A->getOption().matches(OPT_iprefix)) 1438 Prefix = A->getValue(); 1439 else if (A->getOption().matches(OPT_iwithprefix)) 1440 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1441 else 1442 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1443 } 1444 1445 for (const Arg *A : Args.filtered(OPT_idirafter)) 1446 Opts.AddPath(A->getValue(), frontend::After, false, true); 1447 for (const Arg *A : Args.filtered(OPT_iquote)) 1448 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1449 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1450 Opts.AddPath(A->getValue(), frontend::System, false, 1451 !A->getOption().matches(OPT_iwithsysroot)); 1452 for (const Arg *A : Args.filtered(OPT_iframework)) 1453 Opts.AddPath(A->getValue(), frontend::System, true, true); 1454 1455 // Add the paths for the various language specific isystem flags. 1456 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1457 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1458 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1459 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1460 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1461 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1462 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1463 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1464 1465 // Add the internal paths from a driver that detects standard include paths. 1466 for (const Arg *A : 1467 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1468 frontend::IncludeDirGroup Group = frontend::System; 1469 if (A->getOption().matches(OPT_internal_externc_isystem)) 1470 Group = frontend::ExternCSystem; 1471 Opts.AddPath(A->getValue(), Group, false, true); 1472 } 1473 1474 // Add the path prefixes which are implicitly treated as being system headers. 1475 for (const Arg *A : 1476 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1477 Opts.AddSystemHeaderPrefix( 1478 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1479 1480 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1481 Opts.AddVFSOverlayFile(A->getValue()); 1482 } 1483 1484 static bool isOpenCL(LangStandard::Kind LangStd) { 1485 return LangStd == LangStandard::lang_opencl || 1486 LangStd == LangStandard::lang_opencl11 || 1487 LangStd == LangStandard::lang_opencl12 || 1488 LangStd == LangStandard::lang_opencl20; 1489 } 1490 1491 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1492 const llvm::Triple &T, 1493 PreprocessorOptions &PPOpts, 1494 LangStandard::Kind LangStd) { 1495 // Set some properties which depend solely on the input kind; it would be nice 1496 // to move these to the language standard, and have the driver resolve the 1497 // input kind + language standard. 1498 if (IK == IK_Asm) { 1499 Opts.AsmPreprocessor = 1; 1500 } else if (IK == IK_ObjC || 1501 IK == IK_ObjCXX || 1502 IK == IK_PreprocessedObjC || 1503 IK == IK_PreprocessedObjCXX) { 1504 Opts.ObjC1 = Opts.ObjC2 = 1; 1505 } 1506 1507 if (LangStd == LangStandard::lang_unspecified) { 1508 // Based on the base language, pick one. 1509 switch (IK) { 1510 case IK_None: 1511 case IK_AST: 1512 case IK_LLVM_IR: 1513 llvm_unreachable("Invalid input kind!"); 1514 case IK_OpenCL: 1515 LangStd = LangStandard::lang_opencl; 1516 break; 1517 case IK_CUDA: 1518 case IK_PreprocessedCuda: 1519 LangStd = LangStandard::lang_cuda; 1520 break; 1521 case IK_Asm: 1522 case IK_C: 1523 case IK_PreprocessedC: 1524 case IK_ObjC: 1525 case IK_PreprocessedObjC: 1526 // The PS4 uses C99 as the default C standard. 1527 if (T.isPS4()) 1528 LangStd = LangStandard::lang_gnu99; 1529 else 1530 LangStd = LangStandard::lang_gnu11; 1531 break; 1532 case IK_CXX: 1533 case IK_PreprocessedCXX: 1534 case IK_ObjCXX: 1535 case IK_PreprocessedObjCXX: 1536 LangStd = LangStandard::lang_gnucxx98; 1537 break; 1538 case IK_RenderScript: 1539 LangStd = LangStandard::lang_c99; 1540 break; 1541 } 1542 } 1543 1544 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1545 Opts.LineComment = Std.hasLineComments(); 1546 Opts.C99 = Std.isC99(); 1547 Opts.C11 = Std.isC11(); 1548 Opts.CPlusPlus = Std.isCPlusPlus(); 1549 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1550 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1551 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1552 Opts.Digraphs = Std.hasDigraphs(); 1553 Opts.GNUMode = Std.isGNUMode(); 1554 Opts.GNUInline = Std.isC89(); 1555 Opts.HexFloats = Std.hasHexFloats(); 1556 Opts.ImplicitInt = Std.hasImplicitInt(); 1557 1558 // Set OpenCL Version. 1559 Opts.OpenCL = isOpenCL(LangStd) || IK == IK_OpenCL; 1560 if (LangStd == LangStandard::lang_opencl) 1561 Opts.OpenCLVersion = 100; 1562 else if (LangStd == LangStandard::lang_opencl11) 1563 Opts.OpenCLVersion = 110; 1564 else if (LangStd == LangStandard::lang_opencl12) 1565 Opts.OpenCLVersion = 120; 1566 else if (LangStd == LangStandard::lang_opencl20) 1567 Opts.OpenCLVersion = 200; 1568 1569 // OpenCL has some additional defaults. 1570 if (Opts.OpenCL) { 1571 Opts.AltiVec = 0; 1572 Opts.ZVector = 0; 1573 Opts.CXXOperatorNames = 1; 1574 Opts.LaxVectorConversions = 0; 1575 Opts.DefaultFPContract = 1; 1576 Opts.NativeHalfType = 1; 1577 Opts.NativeHalfArgsAndReturns = 1; 1578 // Include default header file for OpenCL. 1579 if (Opts.IncludeDefaultHeader) { 1580 PPOpts.Includes.push_back("opencl-c.h"); 1581 } 1582 } 1583 1584 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || 1585 LangStd == LangStandard::lang_cuda; 1586 1587 Opts.RenderScript = IK == IK_RenderScript; 1588 if (Opts.RenderScript) { 1589 Opts.NativeHalfType = 1; 1590 Opts.NativeHalfArgsAndReturns = 1; 1591 } 1592 1593 // OpenCL and C++ both have bool, true, false keywords. 1594 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1595 1596 // OpenCL has half keyword 1597 Opts.Half = Opts.OpenCL; 1598 1599 // C++ has wchar_t keyword. 1600 Opts.WChar = Opts.CPlusPlus; 1601 1602 Opts.GNUKeywords = Opts.GNUMode; 1603 Opts.CXXOperatorNames = Opts.CPlusPlus; 1604 1605 Opts.DollarIdents = !Opts.AsmPreprocessor; 1606 } 1607 1608 /// Attempt to parse a visibility value out of the given argument. 1609 static Visibility parseVisibility(Arg *arg, ArgList &args, 1610 DiagnosticsEngine &diags) { 1611 StringRef value = arg->getValue(); 1612 if (value == "default") { 1613 return DefaultVisibility; 1614 } else if (value == "hidden" || value == "internal") { 1615 return HiddenVisibility; 1616 } else if (value == "protected") { 1617 // FIXME: diagnose if target does not support protected visibility 1618 return ProtectedVisibility; 1619 } 1620 1621 diags.Report(diag::err_drv_invalid_value) 1622 << arg->getAsString(args) << value; 1623 return DefaultVisibility; 1624 } 1625 1626 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1627 const TargetOptions &TargetOpts, 1628 PreprocessorOptions &PPOpts, 1629 DiagnosticsEngine &Diags) { 1630 // FIXME: Cleanup per-file based stuff. 1631 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1632 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1633 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1634 #define LANGSTANDARD(id, name, desc, features) \ 1635 .Case(name, LangStandard::lang_##id) 1636 #define LANGSTANDARD_ALIAS(id, alias) \ 1637 .Case(alias, LangStandard::lang_##id) 1638 #include "clang/Frontend/LangStandards.def" 1639 .Default(LangStandard::lang_unspecified); 1640 if (LangStd == LangStandard::lang_unspecified) 1641 Diags.Report(diag::err_drv_invalid_value) 1642 << A->getAsString(Args) << A->getValue(); 1643 else { 1644 // Valid standard, check to make sure language and standard are 1645 // compatible. 1646 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1647 switch (IK) { 1648 case IK_C: 1649 case IK_ObjC: 1650 case IK_PreprocessedC: 1651 case IK_PreprocessedObjC: 1652 if (!(Std.isC89() || Std.isC99())) 1653 Diags.Report(diag::err_drv_argument_not_allowed_with) 1654 << A->getAsString(Args) << "C/ObjC"; 1655 break; 1656 case IK_CXX: 1657 case IK_ObjCXX: 1658 case IK_PreprocessedCXX: 1659 case IK_PreprocessedObjCXX: 1660 if (!Std.isCPlusPlus()) 1661 Diags.Report(diag::err_drv_argument_not_allowed_with) 1662 << A->getAsString(Args) << "C++/ObjC++"; 1663 break; 1664 case IK_OpenCL: 1665 if (!isOpenCL(LangStd)) 1666 Diags.Report(diag::err_drv_argument_not_allowed_with) 1667 << A->getAsString(Args) << "OpenCL"; 1668 break; 1669 case IK_CUDA: 1670 case IK_PreprocessedCuda: 1671 if (!Std.isCPlusPlus()) 1672 Diags.Report(diag::err_drv_argument_not_allowed_with) 1673 << A->getAsString(Args) << "CUDA"; 1674 break; 1675 default: 1676 break; 1677 } 1678 } 1679 } 1680 1681 // -cl-std only applies for OpenCL language standards. 1682 // Override the -std option in this case. 1683 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1684 LangStandard::Kind OpenCLLangStd 1685 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1686 .Cases("cl", "CL", LangStandard::lang_opencl) 1687 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1688 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1689 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1690 .Default(LangStandard::lang_unspecified); 1691 1692 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1693 Diags.Report(diag::err_drv_invalid_value) 1694 << A->getAsString(Args) << A->getValue(); 1695 } 1696 else 1697 LangStd = OpenCLLangStd; 1698 } 1699 1700 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1701 1702 llvm::Triple T(TargetOpts.Triple); 1703 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1704 1705 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1706 // This option should be deprecated for CL > 1.0 because 1707 // this option was added for compatibility with OpenCL 1.0. 1708 if (Args.getLastArg(OPT_cl_strict_aliasing) 1709 && Opts.OpenCLVersion > 100) { 1710 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1711 std::string(".") + 1712 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1713 Diags.Report(diag::warn_option_invalid_ocl_version) 1714 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1715 } 1716 1717 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1718 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1719 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1720 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1721 // name, as it doesn't seem a useful distinction. 1722 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1723 Opts.GNUKeywords); 1724 1725 if (Args.hasArg(OPT_fno_operator_names)) 1726 Opts.CXXOperatorNames = 0; 1727 1728 if (Args.hasArg(OPT_fcuda_is_device)) 1729 Opts.CUDAIsDevice = 1; 1730 1731 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1732 Opts.CUDAAllowVariadicFunctions = 1; 1733 1734 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1735 Opts.CUDAHostDeviceConstexpr = 0; 1736 1737 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1738 Opts.CUDADeviceFlushDenormalsToZero = 1; 1739 1740 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1741 Opts.CUDADeviceApproxTranscendentals = 1; 1742 1743 if (Opts.ObjC1) { 1744 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1745 StringRef value = arg->getValue(); 1746 if (Opts.ObjCRuntime.tryParse(value)) 1747 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1748 } 1749 1750 if (Args.hasArg(OPT_fobjc_gc_only)) 1751 Opts.setGC(LangOptions::GCOnly); 1752 else if (Args.hasArg(OPT_fobjc_gc)) 1753 Opts.setGC(LangOptions::HybridGC); 1754 else if (Args.hasArg(OPT_fobjc_arc)) { 1755 Opts.ObjCAutoRefCount = 1; 1756 if (!Opts.ObjCRuntime.allowsARC()) 1757 Diags.Report(diag::err_arc_unsupported_on_runtime); 1758 } 1759 1760 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 1761 // whether the feature is actually enabled. This is predominantly 1762 // determined by -fobjc-runtime, but we allow it to be overridden 1763 // from the command line for testing purposes. 1764 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1765 Opts.ObjCWeakRuntime = 1; 1766 else 1767 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 1768 1769 // ObjCWeak determines whether __weak is actually enabled. 1770 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 1771 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 1772 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 1773 assert(!Opts.ObjCWeak); 1774 } else if (Opts.getGC() != LangOptions::NonGC) { 1775 Diags.Report(diag::err_objc_weak_with_gc); 1776 } else if (!Opts.ObjCWeakRuntime) { 1777 Diags.Report(diag::err_objc_weak_unsupported); 1778 } else { 1779 Opts.ObjCWeak = 1; 1780 } 1781 } else if (Opts.ObjCAutoRefCount) { 1782 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 1783 } 1784 1785 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1786 Opts.ObjCInferRelatedResultType = 0; 1787 1788 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1789 Opts.ObjCSubscriptingLegacyRuntime = 1790 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1791 } 1792 1793 if (Args.hasArg(OPT_fgnu89_inline)) { 1794 if (Opts.CPlusPlus) 1795 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline" 1796 << "C++/ObjC++"; 1797 else 1798 Opts.GNUInline = 1; 1799 } 1800 1801 if (Args.hasArg(OPT_fapple_kext)) { 1802 if (!Opts.CPlusPlus) 1803 Diags.Report(diag::warn_c_kext); 1804 else 1805 Opts.AppleKext = 1; 1806 } 1807 1808 if (Args.hasArg(OPT_print_ivar_layout)) 1809 Opts.ObjCGCBitmapPrint = 1; 1810 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1811 Opts.NoConstantCFStrings = 1; 1812 1813 if (Args.hasArg(OPT_faltivec)) 1814 Opts.AltiVec = 1; 1815 1816 if (Args.hasArg(OPT_fzvector)) 1817 Opts.ZVector = 1; 1818 1819 if (Args.hasArg(OPT_pthread)) 1820 Opts.POSIXThreads = 1; 1821 1822 // The value-visibility mode defaults to "default". 1823 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1824 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1825 } else { 1826 Opts.setValueVisibilityMode(DefaultVisibility); 1827 } 1828 1829 // The type-visibility mode defaults to the value-visibility mode. 1830 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1831 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1832 } else { 1833 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1834 } 1835 1836 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1837 Opts.InlineVisibilityHidden = 1; 1838 1839 if (Args.hasArg(OPT_ftrapv)) { 1840 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1841 // Set the handler, if one is specified. 1842 Opts.OverflowHandler = 1843 Args.getLastArgValue(OPT_ftrapv_handler); 1844 } 1845 else if (Args.hasArg(OPT_fwrapv)) 1846 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1847 1848 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1849 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1850 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1851 Opts.MSCompatibilityVersion = 0; 1852 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1853 VersionTuple VT; 1854 if (VT.tryParse(A->getValue())) 1855 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1856 << A->getValue(); 1857 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1858 VT.getMinor().getValueOr(0) * 100000 + 1859 VT.getSubminor().getValueOr(0); 1860 } 1861 1862 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1863 // is specified, or -std is set to a conforming mode. 1864 // Trigraphs are disabled by default in c++1z onwards. 1865 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1866 Opts.Trigraphs = 1867 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1868 1869 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1870 OPT_fno_dollars_in_identifiers, 1871 Opts.DollarIdents); 1872 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1873 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1874 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1875 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1876 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1877 Opts.ConstStrings); 1878 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1879 Opts.LaxVectorConversions = 0; 1880 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1881 Opts.ThreadsafeStatics = 0; 1882 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1883 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1884 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1885 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1886 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 1887 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1888 1889 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 1890 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1891 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 1892 && Opts.OpenCLVersion >= 200); 1893 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1894 Opts.Coroutines = Args.hasArg(OPT_fcoroutines); 1895 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 1896 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 1897 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1898 Opts.ModulesDeclUse = 1899 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1900 Opts.ModulesLocalVisibility = 1901 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 1902 Opts.ModulesSearchAll = Opts.Modules && 1903 !Args.hasArg(OPT_fno_modules_search_all) && 1904 Args.hasArg(OPT_fmodules_search_all); 1905 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1906 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 1907 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1908 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1909 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1910 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1911 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1912 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1913 if (!Opts.NoBuiltin) 1914 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 1915 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1916 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 1917 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 1918 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1919 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1920 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1921 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1922 Opts.InstantiationDepth = 1923 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 1924 Opts.ArrowDepth = 1925 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1926 Opts.ConstexprCallDepth = 1927 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1928 Opts.ConstexprStepLimit = 1929 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1930 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1931 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1932 Opts.NumLargeByValueCopy = 1933 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1934 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1935 Opts.ObjCConstantStringClass = 1936 Args.getLastArgValue(OPT_fconstant_string_class); 1937 Opts.ObjCDefaultSynthProperties = 1938 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 1939 Opts.EncodeExtendedBlockSig = 1940 Args.hasArg(OPT_fencode_extended_block_signature); 1941 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1942 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 1943 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 1944 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 1945 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 1946 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 1947 Opts.Static = Args.hasArg(OPT_static_define); 1948 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 1949 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 1950 || Args.hasArg(OPT_fdump_record_layouts); 1951 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1952 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1953 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1954 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 1955 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 1956 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 1957 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 1958 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 1959 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 1960 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 1961 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 1962 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 1963 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 1964 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 1965 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 1966 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 1967 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 1968 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 1969 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 1970 // is enabled. 1971 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 1972 | Opts.NativeHalfArgsAndReturns; 1973 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 1974 1975 // __declspec is enabled by default for the PS4 by the driver, and also 1976 // enabled for Microsoft Extensions or Borland Extensions, here. 1977 // 1978 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 1979 // CUDA extension, however it is required for supporting cuda_builtin_vars.h, 1980 // which uses __declspec(property). Once that has been rewritten in terms of 1981 // something more generic, remove the Opts.CUDA term here. 1982 Opts.DeclSpecKeyword = 1983 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 1984 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 1985 1986 // For now, we only support local submodule visibility in C++ (because we 1987 // heavily depend on the ODR for merging redefinitions). 1988 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) 1989 Diags.Report(diag::err_drv_argument_not_allowed_with) 1990 << "-fmodules-local-submodule-visibility" << "C"; 1991 1992 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 1993 switch (llvm::StringSwitch<unsigned>(A->getValue()) 1994 .Case("target", LangOptions::ASMM_Target) 1995 .Case("no", LangOptions::ASMM_Off) 1996 .Case("yes", LangOptions::ASMM_On) 1997 .Default(255)) { 1998 default: 1999 Diags.Report(diag::err_drv_invalid_value) 2000 << "-faddress-space-map-mangling=" << A->getValue(); 2001 break; 2002 case LangOptions::ASMM_Target: 2003 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2004 break; 2005 case LangOptions::ASMM_On: 2006 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2007 break; 2008 case LangOptions::ASMM_Off: 2009 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2010 break; 2011 } 2012 } 2013 2014 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2015 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2016 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2017 A->getValue()) 2018 .Case("single", 2019 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2020 .Case("multiple", 2021 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2022 .Case("virtual", 2023 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2024 .Default(LangOptions::PPTMK_BestCase); 2025 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2026 Diags.Report(diag::err_drv_invalid_value) 2027 << "-fms-memptr-rep=" << A->getValue(); 2028 2029 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2030 } 2031 2032 // Check for MS default calling conventions being specified. 2033 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2034 LangOptions::DefaultCallingConvention DefaultCC = 2035 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2036 A->getValue()) 2037 .Case("cdecl", LangOptions::DCC_CDecl) 2038 .Case("fastcall", LangOptions::DCC_FastCall) 2039 .Case("stdcall", LangOptions::DCC_StdCall) 2040 .Case("vectorcall", LangOptions::DCC_VectorCall) 2041 .Default(LangOptions::DCC_None); 2042 if (DefaultCC == LangOptions::DCC_None) 2043 Diags.Report(diag::err_drv_invalid_value) 2044 << "-fdefault-calling-conv=" << A->getValue(); 2045 2046 llvm::Triple T(TargetOpts.Triple); 2047 llvm::Triple::ArchType Arch = T.getArch(); 2048 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2049 DefaultCC == LangOptions::DCC_StdCall) && 2050 Arch != llvm::Triple::x86; 2051 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2052 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2053 if (emitError) 2054 Diags.Report(diag::err_drv_argument_not_allowed_with) 2055 << A->getSpelling() << T.getTriple(); 2056 else 2057 Opts.setDefaultCallingConv(DefaultCC); 2058 } 2059 2060 // -mrtd option 2061 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2062 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2063 Diags.Report(diag::err_drv_argument_not_allowed_with) 2064 << A->getSpelling() << "-fdefault-calling-conv"; 2065 else { 2066 llvm::Triple T(TargetOpts.Triple); 2067 if (T.getArch() != llvm::Triple::x86) 2068 Diags.Report(diag::err_drv_argument_not_allowed_with) 2069 << A->getSpelling() << T.getTriple(); 2070 else 2071 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2072 } 2073 } 2074 2075 // Check if -fopenmp is specified. 2076 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2077 Opts.OpenMPUseTLS = 2078 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2079 Opts.OpenMPIsDevice = 2080 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2081 2082 if (Opts.OpenMP) { 2083 int Version = 2084 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2085 if (Version != 0) 2086 Opts.OpenMP = Version; 2087 // Provide diagnostic when a given target is not expected to be an OpenMP 2088 // device or host. 2089 if (!Opts.OpenMPIsDevice) { 2090 switch (T.getArch()) { 2091 default: 2092 break; 2093 // Add unsupported host targets here: 2094 case llvm::Triple::nvptx: 2095 case llvm::Triple::nvptx64: 2096 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2097 << TargetOpts.Triple; 2098 break; 2099 } 2100 } 2101 } 2102 2103 // Get the OpenMP target triples if any. 2104 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2105 2106 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2107 llvm::Triple TT(A->getValue(i)); 2108 2109 if (TT.getArch() == llvm::Triple::UnknownArch) 2110 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2111 else 2112 Opts.OMPTargetTriples.push_back(TT); 2113 } 2114 } 2115 2116 // Get OpenMP host file path if any and report if a non existent file is 2117 // found 2118 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2119 Opts.OMPHostIRFile = A->getValue(); 2120 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2121 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2122 << Opts.OMPHostIRFile; 2123 } 2124 2125 // Record whether the __DEPRECATED define was requested. 2126 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2127 OPT_fno_deprecated_macro, 2128 Opts.Deprecated); 2129 2130 // FIXME: Eliminate this dependency. 2131 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2132 OptSize = getOptimizationLevelSize(Args); 2133 Opts.Optimize = Opt != 0; 2134 Opts.OptimizeSize = OptSize != 0; 2135 2136 // This is the __NO_INLINE__ define, which just depends on things like the 2137 // optimization level and -fno-inline, not actually whether the backend has 2138 // inlining enabled. 2139 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 2140 2141 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2142 Args.hasArg(OPT_cl_fast_relaxed_math); 2143 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2144 Args.hasArg(OPT_cl_finite_math_only) || 2145 Args.hasArg(OPT_cl_fast_relaxed_math); 2146 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2147 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2148 Args.hasArg(OPT_cl_fast_relaxed_math); 2149 2150 Opts.RetainCommentsFromSystemHeaders = 2151 Args.hasArg(OPT_fretain_comments_from_system_headers); 2152 2153 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2154 switch (SSP) { 2155 default: 2156 Diags.Report(diag::err_drv_invalid_value) 2157 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2158 break; 2159 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2160 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2161 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2162 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2163 } 2164 2165 // Parse -fsanitize= arguments. 2166 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2167 Diags, Opts.Sanitize); 2168 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2169 Opts.SanitizeAddressFieldPadding = 2170 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2171 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2172 } 2173 2174 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2175 FileManager &FileMgr, 2176 DiagnosticsEngine &Diags) { 2177 using namespace options; 2178 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2179 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2180 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2181 Opts.TokenCache = A->getValue(); 2182 else 2183 Opts.TokenCache = Opts.ImplicitPTHInclude; 2184 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2185 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2186 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2187 2188 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2189 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2190 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2191 2192 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2193 StringRef Value(A->getValue()); 2194 size_t Comma = Value.find(','); 2195 unsigned Bytes = 0; 2196 unsigned EndOfLine = 0; 2197 2198 if (Comma == StringRef::npos || 2199 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2200 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2201 Diags.Report(diag::err_drv_preamble_format); 2202 else { 2203 Opts.PrecompiledPreambleBytes.first = Bytes; 2204 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2205 } 2206 } 2207 2208 // Add macros from the command line. 2209 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2210 if (A->getOption().matches(OPT_D)) 2211 Opts.addMacroDef(A->getValue()); 2212 else 2213 Opts.addMacroUndef(A->getValue()); 2214 } 2215 2216 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2217 2218 // Add the ordered list of -includes. 2219 for (const Arg *A : Args.filtered(OPT_include)) 2220 Opts.Includes.emplace_back(A->getValue()); 2221 2222 for (const Arg *A : Args.filtered(OPT_chain_include)) 2223 Opts.ChainedIncludes.emplace_back(A->getValue()); 2224 2225 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2226 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2227 2228 if (Split.second.empty()) { 2229 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2230 continue; 2231 } 2232 2233 Opts.addRemappedFile(Split.first, Split.second); 2234 } 2235 2236 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2237 StringRef Name = A->getValue(); 2238 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2239 .Case("libc++", ARCXX_libcxx) 2240 .Case("libstdc++", ARCXX_libstdcxx) 2241 .Case("none", ARCXX_nolib) 2242 .Default(~0U); 2243 if (Library == ~0U) 2244 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2245 else 2246 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2247 } 2248 } 2249 2250 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2251 ArgList &Args, 2252 frontend::ActionKind Action) { 2253 using namespace options; 2254 2255 switch (Action) { 2256 case frontend::ASTDeclList: 2257 case frontend::ASTDump: 2258 case frontend::ASTPrint: 2259 case frontend::ASTView: 2260 case frontend::EmitAssembly: 2261 case frontend::EmitBC: 2262 case frontend::EmitHTML: 2263 case frontend::EmitLLVM: 2264 case frontend::EmitLLVMOnly: 2265 case frontend::EmitCodeGenOnly: 2266 case frontend::EmitObj: 2267 case frontend::FixIt: 2268 case frontend::GenerateModule: 2269 case frontend::GenerateModuleInterface: 2270 case frontend::GeneratePCH: 2271 case frontend::GeneratePTH: 2272 case frontend::ParseSyntaxOnly: 2273 case frontend::ModuleFileInfo: 2274 case frontend::VerifyPCH: 2275 case frontend::PluginAction: 2276 case frontend::PrintDeclContext: 2277 case frontend::RewriteObjC: 2278 case frontend::RewriteTest: 2279 case frontend::RunAnalysis: 2280 case frontend::MigrateSource: 2281 Opts.ShowCPP = 0; 2282 break; 2283 2284 case frontend::DumpRawTokens: 2285 case frontend::DumpTokens: 2286 case frontend::InitOnly: 2287 case frontend::PrintPreamble: 2288 case frontend::PrintPreprocessedInput: 2289 case frontend::RewriteMacros: 2290 case frontend::RunPreprocessorOnly: 2291 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2292 break; 2293 } 2294 2295 Opts.ShowComments = Args.hasArg(OPT_C); 2296 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2297 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2298 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2299 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2300 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2301 } 2302 2303 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2304 DiagnosticsEngine &Diags) { 2305 using namespace options; 2306 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2307 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2308 StringRef Value = A->getValue(); 2309 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2310 .Case("default", llvm::EABI::Default) 2311 .Case("4", llvm::EABI::EABI4) 2312 .Case("5", llvm::EABI::EABI5) 2313 .Case("gnu", llvm::EABI::GNU) 2314 .Default(llvm::EABI::Unknown); 2315 if (EABIVersion == llvm::EABI::Unknown) 2316 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2317 << Value; 2318 else 2319 Opts.EABIVersion = Value; 2320 } 2321 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2322 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2323 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2324 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2325 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2326 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2327 // Use the default target triple if unspecified. 2328 if (Opts.Triple.empty()) 2329 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2330 } 2331 2332 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2333 const char *const *ArgBegin, 2334 const char *const *ArgEnd, 2335 DiagnosticsEngine &Diags) { 2336 bool Success = true; 2337 2338 // Parse the arguments. 2339 std::unique_ptr<OptTable> Opts(createDriverOptTable()); 2340 const unsigned IncludedFlagsBitmask = options::CC1Option; 2341 unsigned MissingArgIndex, MissingArgCount; 2342 InputArgList Args = 2343 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2344 MissingArgCount, IncludedFlagsBitmask); 2345 LangOptions &LangOpts = *Res.getLangOpts(); 2346 2347 // Check for missing argument error. 2348 if (MissingArgCount) { 2349 Diags.Report(diag::err_drv_missing_argument) 2350 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2351 Success = false; 2352 } 2353 2354 // Issue errors on unknown arguments. 2355 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2356 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2357 Success = false; 2358 } 2359 2360 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2361 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2362 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2363 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2364 false /*DefaultDiagColor*/); 2365 ParseCommentArgs(LangOpts.CommentOpts, Args); 2366 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2367 // FIXME: We shouldn't have to pass the DashX option around here 2368 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags); 2369 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2370 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2371 Res.getTargetOpts()); 2372 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args); 2373 if (DashX == IK_AST || DashX == IK_LLVM_IR) { 2374 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2375 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2376 // what the input type is. 2377 if (Args.hasArg(OPT_fobjc_arc)) 2378 LangOpts.ObjCAutoRefCount = 1; 2379 // PIClevel and PIELevel are needed during code generation and this should be 2380 // set regardless of the input type. 2381 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2382 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2383 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2384 Diags, LangOpts.Sanitize); 2385 } else { 2386 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2387 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2388 Res.getPreprocessorOpts(), Diags); 2389 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2390 LangOpts.ObjCExceptions = 1; 2391 } 2392 2393 if (LangOpts.CUDA) { 2394 // During CUDA device-side compilation, the aux triple is the 2395 // triple used for host compilation. 2396 if (LangOpts.CUDAIsDevice) 2397 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2398 2399 // Set default FP_CONTRACT to FAST. 2400 if (!Args.hasArg(OPT_ffp_contract)) 2401 Res.getCodeGenOpts().setFPContractMode(CodeGenOptions::FPC_Fast); 2402 } 2403 2404 // FIXME: Override value name discarding when asan or msan is used because the 2405 // backend passes depend on the name of the alloca in order to print out 2406 // names. 2407 Res.getCodeGenOpts().DiscardValueNames &= 2408 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2409 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2410 2411 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2412 // PCH file and find the original header name. Remove the need to do that in 2413 // ParsePreprocessorArgs and remove the FileManager 2414 // parameters from the function and the "FileManager.h" #include. 2415 FileManager FileMgr(Res.getFileSystemOpts()); 2416 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags); 2417 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2418 Res.getFrontendOpts().ProgramAction); 2419 2420 // Turn on -Wspir-compat for SPIR target. 2421 llvm::Triple T(Res.getTargetOpts().Triple); 2422 auto Arch = T.getArch(); 2423 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2424 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2425 } 2426 return Success; 2427 } 2428 2429 std::string CompilerInvocation::getModuleHash() const { 2430 // Note: For QoI reasons, the things we use as a hash here should all be 2431 // dumped via the -module-info flag. 2432 using llvm::hash_code; 2433 using llvm::hash_value; 2434 using llvm::hash_combine; 2435 2436 // Start the signature with the compiler version. 2437 // FIXME: We'd rather use something more cryptographically sound than 2438 // CityHash, but this will do for now. 2439 hash_code code = hash_value(getClangFullRepositoryVersion()); 2440 2441 // Extend the signature with the language options 2442 #define LANGOPT(Name, Bits, Default, Description) \ 2443 code = hash_combine(code, LangOpts->Name); 2444 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2445 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2446 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2447 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2448 #include "clang/Basic/LangOptions.def" 2449 2450 for (StringRef Feature : LangOpts->ModuleFeatures) 2451 code = hash_combine(code, Feature); 2452 2453 // Extend the signature with the target options. 2454 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2455 TargetOpts->ABI); 2456 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2457 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2458 2459 // Extend the signature with preprocessor options. 2460 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2461 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2462 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2463 2464 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2465 I = getPreprocessorOpts().Macros.begin(), 2466 IEnd = getPreprocessorOpts().Macros.end(); 2467 I != IEnd; ++I) { 2468 // If we're supposed to ignore this macro for the purposes of modules, 2469 // don't put it into the hash. 2470 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2471 // Check whether we're ignoring this macro. 2472 StringRef MacroDef = I->first; 2473 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first)) 2474 continue; 2475 } 2476 2477 code = hash_combine(code, I->first, I->second); 2478 } 2479 2480 // Extend the signature with the sysroot and other header search options. 2481 code = hash_combine(code, hsOpts.Sysroot, 2482 hsOpts.ModuleFormat, 2483 hsOpts.UseDebugInfo, 2484 hsOpts.UseBuiltinIncludes, 2485 hsOpts.UseStandardSystemIncludes, 2486 hsOpts.UseStandardCXXIncludes, 2487 hsOpts.UseLibcxx, 2488 hsOpts.ModulesValidateDiagnosticOptions); 2489 code = hash_combine(code, hsOpts.ResourceDir); 2490 2491 // Extend the signature with the user build path. 2492 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2493 2494 // Extend the signature with the module file extensions. 2495 const FrontendOptions &frontendOpts = getFrontendOpts(); 2496 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2497 code = ext->hashExtension(code); 2498 } 2499 2500 // Darwin-specific hack: if we have a sysroot, use the contents and 2501 // modification time of 2502 // $sysroot/System/Library/CoreServices/SystemVersion.plist 2503 // as part of the module hash. 2504 if (!hsOpts.Sysroot.empty()) { 2505 SmallString<128> systemVersionFile; 2506 systemVersionFile += hsOpts.Sysroot; 2507 llvm::sys::path::append(systemVersionFile, "System"); 2508 llvm::sys::path::append(systemVersionFile, "Library"); 2509 llvm::sys::path::append(systemVersionFile, "CoreServices"); 2510 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 2511 2512 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 2513 llvm::MemoryBuffer::getFile(systemVersionFile); 2514 if (buffer) { 2515 code = hash_combine(code, buffer.get()->getBuffer()); 2516 2517 struct stat statBuf; 2518 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 2519 code = hash_combine(code, statBuf.st_mtime); 2520 } 2521 } 2522 2523 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2524 } 2525 2526 namespace clang { 2527 2528 template<typename IntTy> 2529 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2530 IntTy Default, 2531 DiagnosticsEngine *Diags) { 2532 IntTy Res = Default; 2533 if (Arg *A = Args.getLastArg(Id)) { 2534 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2535 if (Diags) 2536 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2537 << A->getValue(); 2538 } 2539 } 2540 return Res; 2541 } 2542 2543 2544 // Declared in clang/Frontend/Utils.h. 2545 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2546 DiagnosticsEngine *Diags) { 2547 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2548 } 2549 2550 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2551 uint64_t Default, 2552 DiagnosticsEngine *Diags) { 2553 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2554 } 2555 2556 void BuryPointer(const void *Ptr) { 2557 // This function may be called only a small fixed amount of times per each 2558 // invocation, otherwise we do actually have a leak which we want to report. 2559 // If this function is called more than kGraveYardMaxSize times, the pointers 2560 // will not be properly buried and a leak detector will report a leak, which 2561 // is what we want in such case. 2562 static const size_t kGraveYardMaxSize = 16; 2563 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2564 static std::atomic<unsigned> GraveYardSize; 2565 unsigned Idx = GraveYardSize++; 2566 if (Idx >= kGraveYardMaxSize) 2567 return; 2568 GraveYard[Idx] = Ptr; 2569 } 2570 2571 IntrusiveRefCntPtr<vfs::FileSystem> 2572 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2573 DiagnosticsEngine &Diags) { 2574 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2575 return vfs::getRealFileSystem(); 2576 2577 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2578 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2579 // earlier vfs files are on the bottom 2580 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2581 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2582 llvm::MemoryBuffer::getFile(File); 2583 if (!Buffer) { 2584 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2585 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2586 } 2587 2588 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2589 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2590 if (!FS.get()) { 2591 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2592 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2593 } 2594 Overlay->pushOverlay(FS); 2595 } 2596 return Overlay; 2597 } 2598 } // end namespace clang 2599