1 //===--- CompilerInvocation.cpp -------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Frontend/CompilerInvocation.h" 11 #include "TestModuleFileExtension.h" 12 #include "clang/Basic/Builtins.h" 13 #include "clang/Basic/FileManager.h" 14 #include "clang/Basic/Version.h" 15 #include "clang/Config/config.h" 16 #include "clang/Driver/DriverDiagnostic.h" 17 #include "clang/Driver/Options.h" 18 #include "clang/Driver/Util.h" 19 #include "clang/Frontend/FrontendDiagnostic.h" 20 #include "clang/Frontend/LangStandard.h" 21 #include "clang/Frontend/Utils.h" 22 #include "clang/Lex/HeaderSearchOptions.h" 23 #include "clang/Lex/PreprocessorOptions.h" 24 #include "clang/Serialization/ASTReader.h" 25 #include "clang/Serialization/ModuleFileExtension.h" 26 #include "llvm/ADT/Hashing.h" 27 #include "llvm/ADT/STLExtras.h" 28 #include "llvm/ADT/SmallVector.h" 29 #include "llvm/ADT/StringExtras.h" 30 #include "llvm/ADT/StringSwitch.h" 31 #include "llvm/ADT/Triple.h" 32 #include "llvm/Linker/Linker.h" 33 #include "llvm/Option/Arg.h" 34 #include "llvm/Option/ArgList.h" 35 #include "llvm/Option/OptTable.h" 36 #include "llvm/Option/Option.h" 37 #include "llvm/ProfileData/InstrProfReader.h" 38 #include "llvm/Support/CodeGen.h" 39 #include "llvm/Support/ErrorHandling.h" 40 #include "llvm/Support/FileSystem.h" 41 #include "llvm/Support/Host.h" 42 #include "llvm/Support/Path.h" 43 #include "llvm/Support/Process.h" 44 #include "llvm/Target/TargetOptions.h" 45 #include "llvm/Support/ScopedPrinter.h" 46 #include <atomic> 47 #include <memory> 48 #include <sys/stat.h> 49 #include <system_error> 50 using namespace clang; 51 52 //===----------------------------------------------------------------------===// 53 // Initialization. 54 //===----------------------------------------------------------------------===// 55 56 CompilerInvocationBase::CompilerInvocationBase() 57 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 58 DiagnosticOpts(new DiagnosticOptions()), 59 HeaderSearchOpts(new HeaderSearchOptions()), 60 PreprocessorOpts(new PreprocessorOptions()) {} 61 62 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 63 : LangOpts(new LangOptions(*X.getLangOpts())), 64 TargetOpts(new TargetOptions(X.getTargetOpts())), 65 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 66 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 67 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 68 69 CompilerInvocationBase::~CompilerInvocationBase() {} 70 71 //===----------------------------------------------------------------------===// 72 // Deserialization (from args) 73 //===----------------------------------------------------------------------===// 74 75 using namespace clang::driver; 76 using namespace clang::driver::options; 77 using namespace llvm::opt; 78 79 // 80 81 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 82 DiagnosticsEngine &Diags) { 83 unsigned DefaultOpt = 0; 84 if (IK.getLanguage() == InputKind::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 85 DefaultOpt = 2; 86 87 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 88 if (A->getOption().matches(options::OPT_O0)) 89 return 0; 90 91 if (A->getOption().matches(options::OPT_Ofast)) 92 return 3; 93 94 assert (A->getOption().matches(options::OPT_O)); 95 96 StringRef S(A->getValue()); 97 if (S == "s" || S == "z" || S.empty()) 98 return 2; 99 100 if (S == "g") 101 return 1; 102 103 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 104 } 105 106 return DefaultOpt; 107 } 108 109 static unsigned getOptimizationLevelSize(ArgList &Args) { 110 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 111 if (A->getOption().matches(options::OPT_O)) { 112 switch (A->getValue()[0]) { 113 default: 114 return 0; 115 case 's': 116 return 1; 117 case 'z': 118 return 2; 119 } 120 } 121 } 122 return 0; 123 } 124 125 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 126 OptSpecifier GroupWithValue, 127 std::vector<std::string> &Diagnostics) { 128 for (Arg *A : Args.filtered(Group)) { 129 if (A->getOption().getKind() == Option::FlagClass) { 130 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 131 // its name (minus the "W" or "R" at the beginning) to the warning list. 132 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 133 } else if (A->getOption().matches(GroupWithValue)) { 134 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 135 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 136 } else { 137 // Otherwise, add its value (for OPT_W_Joined and similar). 138 for (const char *Arg : A->getValues()) 139 Diagnostics.emplace_back(Arg); 140 } 141 } 142 } 143 144 static void getAllNoBuiltinFuncValues(ArgList &Args, 145 std::vector<std::string> &Funcs) { 146 SmallVector<const char *, 8> Values; 147 for (const auto &Arg : Args) { 148 const Option &O = Arg->getOption(); 149 if (O.matches(options::OPT_fno_builtin_)) { 150 const char *FuncName = Arg->getValue(); 151 if (Builtin::Context::isBuiltinFunc(FuncName)) 152 Values.push_back(FuncName); 153 } 154 } 155 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 156 } 157 158 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 159 DiagnosticsEngine &Diags) { 160 using namespace options; 161 bool Success = true; 162 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 163 StringRef Name = A->getValue(); 164 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 165 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 166 .Case(CMDFLAG, NAME##Model) 167 #include "clang/StaticAnalyzer/Core/Analyses.def" 168 .Default(NumStores); 169 if (Value == NumStores) { 170 Diags.Report(diag::err_drv_invalid_value) 171 << A->getAsString(Args) << Name; 172 Success = false; 173 } else { 174 Opts.AnalysisStoreOpt = Value; 175 } 176 } 177 178 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 179 StringRef Name = A->getValue(); 180 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 181 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 182 .Case(CMDFLAG, NAME##Model) 183 #include "clang/StaticAnalyzer/Core/Analyses.def" 184 .Default(NumConstraints); 185 if (Value == NumConstraints) { 186 Diags.Report(diag::err_drv_invalid_value) 187 << A->getAsString(Args) << Name; 188 Success = false; 189 } else { 190 Opts.AnalysisConstraintsOpt = Value; 191 } 192 } 193 194 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 195 StringRef Name = A->getValue(); 196 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 197 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 198 .Case(CMDFLAG, PD_##NAME) 199 #include "clang/StaticAnalyzer/Core/Analyses.def" 200 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 201 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 202 Diags.Report(diag::err_drv_invalid_value) 203 << A->getAsString(Args) << Name; 204 Success = false; 205 } else { 206 Opts.AnalysisDiagOpt = Value; 207 } 208 } 209 210 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 211 StringRef Name = A->getValue(); 212 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 213 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 214 .Case(CMDFLAG, NAME) 215 #include "clang/StaticAnalyzer/Core/Analyses.def" 216 .Default(NumPurgeModes); 217 if (Value == NumPurgeModes) { 218 Diags.Report(diag::err_drv_invalid_value) 219 << A->getAsString(Args) << Name; 220 Success = false; 221 } else { 222 Opts.AnalysisPurgeOpt = Value; 223 } 224 } 225 226 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 227 StringRef Name = A->getValue(); 228 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 229 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 230 .Case(CMDFLAG, NAME) 231 #include "clang/StaticAnalyzer/Core/Analyses.def" 232 .Default(NumInliningModes); 233 if (Value == NumInliningModes) { 234 Diags.Report(diag::err_drv_invalid_value) 235 << A->getAsString(Args) << Name; 236 Success = false; 237 } else { 238 Opts.InliningMode = Value; 239 } 240 } 241 242 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 243 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 244 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 245 246 Opts.visualizeExplodedGraphWithGraphViz = 247 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 248 Opts.visualizeExplodedGraphWithUbiGraph = 249 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 250 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 251 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 252 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 253 Opts.AnalyzeNestedBlocks = 254 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 255 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 256 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 257 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 258 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 259 Opts.maxBlockVisitOnPath = 260 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 261 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 262 Opts.InlineMaxStackDepth = 263 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 264 Opts.InlineMaxStackDepth, Diags); 265 266 Opts.CheckersControlList.clear(); 267 for (const Arg *A : 268 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 269 A->claim(); 270 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 271 // We can have a list of comma separated checker names, e.g: 272 // '-analyzer-checker=cocoa,unix' 273 StringRef checkerList = A->getValue(); 274 SmallVector<StringRef, 4> checkers; 275 checkerList.split(checkers, ","); 276 for (StringRef checker : checkers) 277 Opts.CheckersControlList.emplace_back(checker, enable); 278 } 279 280 // Go through the analyzer configuration options. 281 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 282 A->claim(); 283 // We can have a list of comma separated config names, e.g: 284 // '-analyzer-config key1=val1,key2=val2' 285 StringRef configList = A->getValue(); 286 SmallVector<StringRef, 4> configVals; 287 configList.split(configVals, ","); 288 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 289 StringRef key, val; 290 std::tie(key, val) = configVals[i].split("="); 291 if (val.empty()) { 292 Diags.Report(SourceLocation(), 293 diag::err_analyzer_config_no_value) << configVals[i]; 294 Success = false; 295 break; 296 } 297 if (val.find('=') != StringRef::npos) { 298 Diags.Report(SourceLocation(), 299 diag::err_analyzer_config_multiple_values) 300 << configVals[i]; 301 Success = false; 302 break; 303 } 304 Opts.Config[key] = val; 305 } 306 } 307 308 return Success; 309 } 310 311 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 312 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 313 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 314 return true; 315 } 316 317 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 318 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 319 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 320 } 321 322 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 323 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 324 StringRef Value = A->getValue(); 325 if (Value == "small" || Value == "kernel" || Value == "medium" || 326 Value == "large") 327 return Value; 328 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 329 } 330 return "default"; 331 } 332 333 static StringRef getRelocModel(ArgList &Args, DiagnosticsEngine &Diags) { 334 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 335 StringRef Value = A->getValue(); 336 if (Value == "static" || Value == "pic" || Value == "ropi" || 337 Value == "rwpi" || Value == "ropi-rwpi" || Value == "dynamic-no-pic") 338 return Value; 339 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 340 } 341 return "pic"; 342 } 343 344 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 345 /// It returns a pointer to the newly generated Regex instance. 346 static std::shared_ptr<llvm::Regex> 347 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 348 Arg *RpassArg) { 349 StringRef Val = RpassArg->getValue(); 350 std::string RegexError; 351 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 352 if (!Pattern->isValid(RegexError)) { 353 Diags.Report(diag::err_drv_optimization_remark_pattern) 354 << RegexError << RpassArg->getAsString(Args); 355 Pattern.reset(); 356 } 357 return Pattern; 358 } 359 360 static bool parseDiagnosticLevelMask(StringRef FlagName, 361 const std::vector<std::string> &Levels, 362 DiagnosticsEngine *Diags, 363 DiagnosticLevelMask &M) { 364 bool Success = true; 365 for (const auto &Level : Levels) { 366 DiagnosticLevelMask const PM = 367 llvm::StringSwitch<DiagnosticLevelMask>(Level) 368 .Case("note", DiagnosticLevelMask::Note) 369 .Case("remark", DiagnosticLevelMask::Remark) 370 .Case("warning", DiagnosticLevelMask::Warning) 371 .Case("error", DiagnosticLevelMask::Error) 372 .Default(DiagnosticLevelMask::None); 373 if (PM == DiagnosticLevelMask::None) { 374 Success = false; 375 if (Diags) 376 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 377 } 378 M = M | PM; 379 } 380 return Success; 381 } 382 383 static void parseSanitizerKinds(StringRef FlagName, 384 const std::vector<std::string> &Sanitizers, 385 DiagnosticsEngine &Diags, SanitizerSet &S) { 386 for (const auto &Sanitizer : Sanitizers) { 387 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 388 if (K == 0) 389 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 390 else 391 S.set(K, true); 392 } 393 } 394 395 // Set the profile kind for fprofile-instrument. 396 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 397 DiagnosticsEngine &Diags) { 398 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 399 if (A == nullptr) 400 return; 401 StringRef S = A->getValue(); 402 unsigned I = llvm::StringSwitch<unsigned>(S) 403 .Case("none", CodeGenOptions::ProfileNone) 404 .Case("clang", CodeGenOptions::ProfileClangInstr) 405 .Case("llvm", CodeGenOptions::ProfileIRInstr) 406 .Default(~0U); 407 if (I == ~0U) { 408 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 409 << S; 410 return; 411 } 412 CodeGenOptions::ProfileInstrKind Instrumentor = 413 static_cast<CodeGenOptions::ProfileInstrKind>(I); 414 Opts.setProfileInstr(Instrumentor); 415 } 416 417 // Set the profile kind using fprofile-instrument-use-path. 418 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 419 const Twine &ProfileName) { 420 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 421 // In error, return silently and let Clang PGOUse report the error message. 422 if (auto E = ReaderOrErr.takeError()) { 423 llvm::consumeError(std::move(E)); 424 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 425 return; 426 } 427 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 428 std::move(ReaderOrErr.get()); 429 if (PGOReader->isIRLevelProfile()) 430 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 431 else 432 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 433 } 434 435 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 436 DiagnosticsEngine &Diags, 437 const TargetOptions &TargetOpts) { 438 using namespace options; 439 bool Success = true; 440 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 441 442 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 443 // TODO: This could be done in Driver 444 unsigned MaxOptLevel = 3; 445 if (OptimizationLevel > MaxOptLevel) { 446 // If the optimization level is not supported, fall back on the default 447 // optimization 448 Diags.Report(diag::warn_drv_optimization_value) 449 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 450 OptimizationLevel = MaxOptLevel; 451 } 452 Opts.OptimizationLevel = OptimizationLevel; 453 454 // At O0 we want to fully disable inlining outside of cases marked with 455 // 'alwaysinline' that are required for correctness. 456 Opts.setInlining((Opts.OptimizationLevel == 0) 457 ? CodeGenOptions::OnlyAlwaysInlining 458 : CodeGenOptions::NormalInlining); 459 // Explicit inlining flags can disable some or all inlining even at 460 // optimization levels above zero. 461 if (Arg *InlineArg = Args.getLastArg( 462 options::OPT_finline_functions, options::OPT_finline_hint_functions, 463 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 464 if (Opts.OptimizationLevel > 0) { 465 const Option &InlineOpt = InlineArg->getOption(); 466 if (InlineOpt.matches(options::OPT_finline_functions)) 467 Opts.setInlining(CodeGenOptions::NormalInlining); 468 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 469 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 470 else 471 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 472 } 473 } 474 475 Opts.ExperimentalNewPassManager = Args.hasFlag( 476 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 477 /* Default */ false); 478 479 Opts.DebugPassManager = 480 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 481 /* Default */ false); 482 483 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 484 StringRef Name = A->getValue(); 485 if (Name == "Accelerate") 486 Opts.setVecLib(CodeGenOptions::Accelerate); 487 else if (Name == "SVML") 488 Opts.setVecLib(CodeGenOptions::SVML); 489 else if (Name == "none") 490 Opts.setVecLib(CodeGenOptions::NoLibrary); 491 else 492 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 493 } 494 495 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 496 unsigned Val = 497 llvm::StringSwitch<unsigned>(A->getValue()) 498 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 499 .Case("limited", codegenoptions::LimitedDebugInfo) 500 .Case("standalone", codegenoptions::FullDebugInfo) 501 .Default(~0U); 502 if (Val == ~0U) 503 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 504 << A->getValue(); 505 else 506 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 507 } 508 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 509 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 510 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 511 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 512 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 513 .Default(~0U); 514 if (Val == ~0U) 515 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 516 << A->getValue(); 517 else 518 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 519 } 520 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 521 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 522 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 523 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 524 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 525 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 526 Opts.EnableSplitDwarf = Args.hasArg(OPT_enable_split_dwarf); 527 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 528 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 529 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 530 Opts.DebugExplicitImport = Triple.isPS4CPU(); 531 532 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 533 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 534 535 if (const Arg *A = 536 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 537 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 538 539 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 540 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 541 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 542 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 543 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 544 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 545 OPT_fuse_register_sized_bitfield_access); 546 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 547 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 548 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 549 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 550 Opts.NoCommon = Args.hasArg(OPT_fno_common); 551 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 552 Opts.OptimizeSize = getOptimizationLevelSize(Args); 553 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 554 Args.hasArg(OPT_ffreestanding)); 555 if (Opts.SimplifyLibCalls) 556 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 557 Opts.UnrollLoops = 558 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 559 (Opts.OptimizationLevel > 1)); 560 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 561 562 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 563 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 564 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 565 Opts.DebugInfoForProfiling = Args.hasFlag( 566 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 567 Opts.GnuPubnames = Args.hasArg(OPT_ggnu_pubnames); 568 569 setPGOInstrumentor(Opts, Args, Diags); 570 Opts.InstrProfileOutput = 571 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 572 Opts.ProfileInstrumentUsePath = 573 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 574 if (!Opts.ProfileInstrumentUsePath.empty()) 575 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 576 577 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 578 Opts.setClangABICompat(CodeGenOptions::ClangABI::Latest); 579 580 StringRef Ver = A->getValue(); 581 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 582 unsigned Major, Minor = 0; 583 584 // Check the version number is valid: either 3.x (0 <= x <= 9) or 585 // y or y.0 (4 <= y <= current version). 586 if (!VerParts.first.startswith("0") && 587 !VerParts.first.getAsInteger(10, Major) && 588 3 <= Major && Major <= CLANG_VERSION_MAJOR && 589 (Major == 3 ? VerParts.second.size() == 1 && 590 !VerParts.second.getAsInteger(10, Minor) 591 : VerParts.first.size() == Ver.size() || 592 VerParts.second == "0")) { 593 // Got a valid version number. 594 if (Major == 3 && Minor <= 8) 595 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver3_8); 596 else if (Major <= 4) 597 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver4); 598 } else if (Ver != "latest") { 599 Diags.Report(diag::err_drv_invalid_value) 600 << A->getAsString(Args) << A->getValue(); 601 } 602 } 603 604 Opts.CoverageMapping = 605 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 606 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 607 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 608 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 609 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 610 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 611 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 612 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 613 Opts.CodeModel = getCodeModel(Args, Diags); 614 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 615 Opts.DisableFPElim = 616 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 617 Opts.DisableFree = Args.hasArg(OPT_disable_free); 618 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 619 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 620 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 621 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 622 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 623 Args.hasArg(OPT_cl_fast_relaxed_math); 624 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 625 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 626 Args.hasArg(OPT_cl_finite_math_only) || 627 Args.hasArg(OPT_cl_fast_relaxed_math)); 628 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 629 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 630 Args.hasArg(OPT_cl_finite_math_only) || 631 Args.hasArg(OPT_cl_fast_relaxed_math)); 632 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 633 Args.hasArg(OPT_cl_no_signed_zeros) || 634 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 635 Args.hasArg(OPT_cl_fast_relaxed_math)); 636 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 637 Opts.CorrectlyRoundedDivSqrt = 638 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 639 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 640 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 641 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 642 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 643 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 644 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 645 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 646 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 647 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 648 Opts.IncrementalLinkerCompatible = 649 Args.hasArg(OPT_mincremental_linker_compatible); 650 Opts.PIECopyRelocations = 651 Args.hasArg(OPT_mpie_copy_relocations); 652 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 653 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 654 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 655 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 656 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 657 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 658 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 659 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 660 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 661 Args.hasArg(OPT_cl_fast_relaxed_math); 662 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 663 Opts.RelocationModel = getRelocModel(Args, Diags); 664 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 665 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 666 Diags.Report(diag::err_drv_invalid_value) 667 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 668 << Opts.ThreadModel; 669 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 670 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 671 672 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 673 OPT_fno_function_sections, false); 674 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 675 OPT_fno_data_sections, false); 676 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 677 OPT_fno_unique_section_names, true); 678 679 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 680 681 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 682 683 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 684 685 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 686 Opts.EmitSummaryIndex = false; 687 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 688 StringRef S = A->getValue(); 689 if (S == "thin") 690 Opts.EmitSummaryIndex = true; 691 else if (S != "full") 692 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 693 } 694 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 695 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 696 if (IK.getLanguage() != InputKind::LLVM_IR) 697 Diags.Report(diag::err_drv_argument_only_allowed_with) 698 << A->getAsString(Args) << "-x ir"; 699 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 700 } 701 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 702 703 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 704 705 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 706 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 707 708 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 709 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 710 711 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 712 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 713 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 714 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 715 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 716 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 717 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 718 Opts.CoverageNoFunctionNamesInData = 719 Args.hasArg(OPT_coverage_no_function_names_in_data); 720 Opts.CoverageExitBlockBeforeBody = 721 Args.hasArg(OPT_coverage_exit_block_before_body); 722 if (Args.hasArg(OPT_coverage_version_EQ)) { 723 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 724 if (CoverageVersion.size() != 4) { 725 Diags.Report(diag::err_drv_invalid_value) 726 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 727 << CoverageVersion; 728 } else { 729 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 730 } 731 } 732 } 733 // Handle -fembed-bitcode option. 734 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 735 StringRef Name = A->getValue(); 736 unsigned Model = llvm::StringSwitch<unsigned>(Name) 737 .Case("off", CodeGenOptions::Embed_Off) 738 .Case("all", CodeGenOptions::Embed_All) 739 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 740 .Case("marker", CodeGenOptions::Embed_Marker) 741 .Default(~0U); 742 if (Model == ~0U) { 743 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 744 Success = false; 745 } else 746 Opts.setEmbedBitcode( 747 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 748 } 749 // FIXME: For backend options that are not yet recorded as function 750 // attributes in the IR, keep track of them so we can embed them in a 751 // separate data section and use them when building the bitcode. 752 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 753 for (const auto &A : Args) { 754 // Do not encode output and input. 755 if (A->getOption().getID() == options::OPT_o || 756 A->getOption().getID() == options::OPT_INPUT || 757 A->getOption().getID() == options::OPT_x || 758 A->getOption().getID() == options::OPT_fembed_bitcode || 759 (A->getOption().getGroup().isValid() && 760 A->getOption().getGroup().getID() == options::OPT_W_Group)) 761 continue; 762 ArgStringList ASL; 763 A->render(Args, ASL); 764 for (const auto &arg : ASL) { 765 StringRef ArgStr(arg); 766 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 767 // using \00 to seperate each commandline options. 768 Opts.CmdArgs.push_back('\0'); 769 } 770 } 771 } 772 773 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 774 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 775 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 776 Opts.XRayInstructionThreshold = 777 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 778 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 779 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 780 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 781 782 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 783 OPT_compress_debug_sections_EQ)) { 784 if (A->getOption().getID() == OPT_compress_debug_sections) { 785 // TODO: be more clever about the compression type auto-detection 786 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 787 } else { 788 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 789 .Case("none", llvm::DebugCompressionType::None) 790 .Case("zlib", llvm::DebugCompressionType::Z) 791 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 792 .Default(llvm::DebugCompressionType::None); 793 Opts.setCompressDebugSections(DCT); 794 } 795 } 796 797 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 798 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 799 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 800 CodeGenOptions::BitcodeFileToLink F; 801 F.Filename = A->getValue(); 802 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) { 803 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 804 // When linking CUDA bitcode, propagate function attributes so that 805 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 806 F.PropagateAttrs = true; 807 F.Internalize = true; 808 } 809 Opts.LinkBitcodeFiles.push_back(F); 810 } 811 Opts.SanitizeCoverageType = 812 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 813 Opts.SanitizeCoverageIndirectCalls = 814 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 815 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 816 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 817 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 818 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 819 Opts.SanitizeCoverage8bitCounters = 820 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 821 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 822 Opts.SanitizeCoverageTracePCGuard = 823 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 824 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 825 Opts.SanitizeCoverageInline8bitCounters = 826 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 827 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 828 Opts.SanitizeCoverageStackDepth = 829 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 830 Opts.SanitizeMemoryTrackOrigins = 831 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 832 Opts.SanitizeMemoryUseAfterDtor = 833 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 834 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 835 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 836 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 837 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 838 OPT_fno_sanitize_address_use_after_scope)) { 839 Opts.SanitizeAddressUseAfterScope = 840 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 841 } 842 Opts.SanitizeAddressGlobalsDeadStripping = 843 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 844 Opts.SSPBufferSize = 845 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 846 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 847 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 848 StringRef Val = A->getValue(); 849 unsigned StackAlignment = Opts.StackAlignment; 850 Val.getAsInteger(10, StackAlignment); 851 Opts.StackAlignment = StackAlignment; 852 } 853 854 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 855 StringRef Val = A->getValue(); 856 unsigned StackProbeSize = Opts.StackProbeSize; 857 Val.getAsInteger(0, StackProbeSize); 858 Opts.StackProbeSize = StackProbeSize; 859 } 860 861 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 862 StringRef Name = A->getValue(); 863 unsigned Method = llvm::StringSwitch<unsigned>(Name) 864 .Case("legacy", CodeGenOptions::Legacy) 865 .Case("non-legacy", CodeGenOptions::NonLegacy) 866 .Case("mixed", CodeGenOptions::Mixed) 867 .Default(~0U); 868 if (Method == ~0U) { 869 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 870 Success = false; 871 } else { 872 Opts.setObjCDispatchMethod( 873 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 874 } 875 } 876 877 Opts.EmulatedTLS = 878 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 879 880 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 881 StringRef Name = A->getValue(); 882 unsigned Model = llvm::StringSwitch<unsigned>(Name) 883 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 884 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 885 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 886 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 887 .Default(~0U); 888 if (Model == ~0U) { 889 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 890 Success = false; 891 } else { 892 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 893 } 894 } 895 896 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 897 StringRef Val = A->getValue(); 898 if (Val == "ieee") 899 Opts.FPDenormalMode = "ieee"; 900 else if (Val == "preserve-sign") 901 Opts.FPDenormalMode = "preserve-sign"; 902 else if (Val == "positive-zero") 903 Opts.FPDenormalMode = "positive-zero"; 904 else 905 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 906 } 907 908 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 909 if (A->getOption().matches(OPT_fpcc_struct_return)) { 910 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 911 } else { 912 assert(A->getOption().matches(OPT_freg_struct_return)); 913 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 914 } 915 } 916 917 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 918 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 919 bool NeedLocTracking = false; 920 921 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 922 if (!Opts.OptRecordFile.empty()) 923 NeedLocTracking = true; 924 925 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 926 Opts.OptimizationRemarkPattern = 927 GenerateOptimizationRemarkRegex(Diags, Args, A); 928 NeedLocTracking = true; 929 } 930 931 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 932 Opts.OptimizationRemarkMissedPattern = 933 GenerateOptimizationRemarkRegex(Diags, Args, A); 934 NeedLocTracking = true; 935 } 936 937 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 938 Opts.OptimizationRemarkAnalysisPattern = 939 GenerateOptimizationRemarkRegex(Diags, Args, A); 940 NeedLocTracking = true; 941 } 942 943 Opts.DiagnosticsWithHotness = 944 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 945 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 946 bool UsingProfile = UsingSampleProfile || 947 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 948 949 if (Opts.DiagnosticsWithHotness && !UsingProfile) 950 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 951 << "-fdiagnostics-show-hotness"; 952 953 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 954 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 955 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 956 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 957 << "-fdiagnostics-hotness-threshold="; 958 959 // If the user requested to use a sample profile for PGO, then the 960 // backend will need to track source location information so the profile 961 // can be incorporated into the IR. 962 if (UsingSampleProfile) 963 NeedLocTracking = true; 964 965 // If the user requested a flag that requires source locations available in 966 // the backend, make sure that the backend tracks source location information. 967 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 968 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 969 970 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 971 972 // Parse -fsanitize-recover= arguments. 973 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 974 parseSanitizerKinds("-fsanitize-recover=", 975 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 976 Opts.SanitizeRecover); 977 parseSanitizerKinds("-fsanitize-trap=", 978 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 979 Opts.SanitizeTrap); 980 981 Opts.CudaGpuBinaryFileNames = 982 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 983 984 Opts.Backchain = Args.hasArg(OPT_mbackchain); 985 986 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 987 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 988 989 return Success; 990 } 991 992 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 993 ArgList &Args) { 994 using namespace options; 995 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 996 Opts.Targets = Args.getAllArgValues(OPT_MT); 997 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 998 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 999 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1000 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1001 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1002 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1003 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 1004 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1005 Opts.ModuleDependencyOutputDir = 1006 Args.getLastArgValue(OPT_module_dependency_dir); 1007 if (Args.hasArg(OPT_MV)) 1008 Opts.OutputFormat = DependencyOutputFormat::NMake; 1009 // Add sanitizer blacklists as extra dependencies. 1010 // They won't be discovered by the regular preprocessor, so 1011 // we let make / ninja to know about this implicit dependency. 1012 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1013 // Only the -fmodule-file=<file> form. 1014 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1015 StringRef Val = A->getValue(); 1016 if (Val.find('=') == StringRef::npos) 1017 Opts.ExtraDeps.push_back(Val); 1018 } 1019 } 1020 1021 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1022 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1023 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1024 // Support both clang's -f[no-]color-diagnostics and gcc's 1025 // -f[no-]diagnostics-colors[=never|always|auto]. 1026 enum { 1027 Colors_On, 1028 Colors_Off, 1029 Colors_Auto 1030 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1031 for (Arg *A : Args) { 1032 const Option &O = A->getOption(); 1033 if (O.matches(options::OPT_fcolor_diagnostics) || 1034 O.matches(options::OPT_fdiagnostics_color)) { 1035 ShowColors = Colors_On; 1036 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1037 O.matches(options::OPT_fno_diagnostics_color)) { 1038 ShowColors = Colors_Off; 1039 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1040 StringRef Value(A->getValue()); 1041 if (Value == "always") 1042 ShowColors = Colors_On; 1043 else if (Value == "never") 1044 ShowColors = Colors_Off; 1045 else if (Value == "auto") 1046 ShowColors = Colors_Auto; 1047 } 1048 } 1049 return ShowColors == Colors_On || 1050 (ShowColors == Colors_Auto && 1051 llvm::sys::Process::StandardErrHasColors()); 1052 } 1053 1054 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1055 DiagnosticsEngine *Diags, 1056 bool DefaultDiagColor, bool DefaultShowOpt) { 1057 using namespace options; 1058 bool Success = true; 1059 1060 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1061 if (Arg *A = 1062 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1063 Opts.DiagnosticSerializationFile = A->getValue(); 1064 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1065 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1066 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1067 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1068 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1069 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1070 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1071 OPT_fno_show_column, 1072 /*Default=*/true); 1073 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1074 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1075 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1076 Opts.ShowOptionNames = 1077 Args.hasFlag(OPT_fdiagnostics_show_option, 1078 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1079 1080 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1081 1082 // Default behavior is to not to show note include stacks. 1083 Opts.ShowNoteIncludeStack = false; 1084 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1085 OPT_fno_diagnostics_show_note_include_stack)) 1086 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1087 Opts.ShowNoteIncludeStack = true; 1088 1089 StringRef ShowOverloads = 1090 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1091 if (ShowOverloads == "best") 1092 Opts.setShowOverloads(Ovl_Best); 1093 else if (ShowOverloads == "all") 1094 Opts.setShowOverloads(Ovl_All); 1095 else { 1096 Success = false; 1097 if (Diags) 1098 Diags->Report(diag::err_drv_invalid_value) 1099 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1100 << ShowOverloads; 1101 } 1102 1103 StringRef ShowCategory = 1104 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1105 if (ShowCategory == "none") 1106 Opts.ShowCategories = 0; 1107 else if (ShowCategory == "id") 1108 Opts.ShowCategories = 1; 1109 else if (ShowCategory == "name") 1110 Opts.ShowCategories = 2; 1111 else { 1112 Success = false; 1113 if (Diags) 1114 Diags->Report(diag::err_drv_invalid_value) 1115 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1116 << ShowCategory; 1117 } 1118 1119 StringRef Format = 1120 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1121 if (Format == "clang") 1122 Opts.setFormat(DiagnosticOptions::Clang); 1123 else if (Format == "msvc") 1124 Opts.setFormat(DiagnosticOptions::MSVC); 1125 else if (Format == "msvc-fallback") { 1126 Opts.setFormat(DiagnosticOptions::MSVC); 1127 Opts.CLFallbackMode = true; 1128 } else if (Format == "vi") 1129 Opts.setFormat(DiagnosticOptions::Vi); 1130 else { 1131 Success = false; 1132 if (Diags) 1133 Diags->Report(diag::err_drv_invalid_value) 1134 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1135 << Format; 1136 } 1137 1138 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1139 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1140 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1141 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1142 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1143 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1144 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1145 Diags, DiagMask); 1146 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1147 DiagMask = DiagnosticLevelMask::All; 1148 Opts.setVerifyIgnoreUnexpected(DiagMask); 1149 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1150 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1151 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1152 Opts.MacroBacktraceLimit = 1153 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1154 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1155 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1156 Args, OPT_ftemplate_backtrace_limit, 1157 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1158 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1159 Args, OPT_fconstexpr_backtrace_limit, 1160 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1161 Opts.SpellCheckingLimit = getLastArgIntValue( 1162 Args, OPT_fspell_checking_limit, 1163 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1164 Opts.SnippetLineLimit = getLastArgIntValue( 1165 Args, OPT_fcaret_diagnostics_max_lines, 1166 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1167 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1168 DiagnosticOptions::DefaultTabStop, Diags); 1169 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1170 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1171 if (Diags) 1172 Diags->Report(diag::warn_ignoring_ftabstop_value) 1173 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1174 } 1175 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1176 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1177 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1178 1179 return Success; 1180 } 1181 1182 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1183 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1184 } 1185 1186 /// Parse the argument to the -ftest-module-file-extension 1187 /// command-line argument. 1188 /// 1189 /// \returns true on error, false on success. 1190 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1191 std::string &BlockName, 1192 unsigned &MajorVersion, 1193 unsigned &MinorVersion, 1194 bool &Hashed, 1195 std::string &UserInfo) { 1196 SmallVector<StringRef, 5> Args; 1197 Arg.split(Args, ':', 5); 1198 if (Args.size() < 5) 1199 return true; 1200 1201 BlockName = Args[0]; 1202 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1203 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1204 if (Args[3].getAsInteger(2, Hashed)) return true; 1205 if (Args.size() > 4) 1206 UserInfo = Args[4]; 1207 return false; 1208 } 1209 1210 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1211 DiagnosticsEngine &Diags, 1212 bool &IsHeaderFile) { 1213 using namespace options; 1214 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1215 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1216 switch (A->getOption().getID()) { 1217 default: 1218 llvm_unreachable("Invalid option in group!"); 1219 case OPT_ast_list: 1220 Opts.ProgramAction = frontend::ASTDeclList; break; 1221 case OPT_ast_dump: 1222 case OPT_ast_dump_all: 1223 case OPT_ast_dump_lookups: 1224 Opts.ProgramAction = frontend::ASTDump; break; 1225 case OPT_ast_print: 1226 Opts.ProgramAction = frontend::ASTPrint; break; 1227 case OPT_ast_view: 1228 Opts.ProgramAction = frontend::ASTView; break; 1229 case OPT_dump_raw_tokens: 1230 Opts.ProgramAction = frontend::DumpRawTokens; break; 1231 case OPT_dump_tokens: 1232 Opts.ProgramAction = frontend::DumpTokens; break; 1233 case OPT_S: 1234 Opts.ProgramAction = frontend::EmitAssembly; break; 1235 case OPT_emit_llvm_bc: 1236 Opts.ProgramAction = frontend::EmitBC; break; 1237 case OPT_emit_html: 1238 Opts.ProgramAction = frontend::EmitHTML; break; 1239 case OPT_emit_llvm: 1240 Opts.ProgramAction = frontend::EmitLLVM; break; 1241 case OPT_emit_llvm_only: 1242 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1243 case OPT_emit_codegen_only: 1244 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1245 case OPT_emit_obj: 1246 Opts.ProgramAction = frontend::EmitObj; break; 1247 case OPT_fixit_EQ: 1248 Opts.FixItSuffix = A->getValue(); 1249 // fall-through! 1250 case OPT_fixit: 1251 Opts.ProgramAction = frontend::FixIt; break; 1252 case OPT_emit_module: 1253 Opts.ProgramAction = frontend::GenerateModule; break; 1254 case OPT_emit_module_interface: 1255 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1256 case OPT_emit_pch: 1257 Opts.ProgramAction = frontend::GeneratePCH; break; 1258 case OPT_emit_pth: 1259 Opts.ProgramAction = frontend::GeneratePTH; break; 1260 case OPT_init_only: 1261 Opts.ProgramAction = frontend::InitOnly; break; 1262 case OPT_fsyntax_only: 1263 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1264 case OPT_module_file_info: 1265 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1266 case OPT_verify_pch: 1267 Opts.ProgramAction = frontend::VerifyPCH; break; 1268 case OPT_print_decl_contexts: 1269 Opts.ProgramAction = frontend::PrintDeclContext; break; 1270 case OPT_print_preamble: 1271 Opts.ProgramAction = frontend::PrintPreamble; break; 1272 case OPT_E: 1273 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1274 case OPT_rewrite_macros: 1275 Opts.ProgramAction = frontend::RewriteMacros; break; 1276 case OPT_rewrite_objc: 1277 Opts.ProgramAction = frontend::RewriteObjC; break; 1278 case OPT_rewrite_test: 1279 Opts.ProgramAction = frontend::RewriteTest; break; 1280 case OPT_analyze: 1281 Opts.ProgramAction = frontend::RunAnalysis; break; 1282 case OPT_migrate: 1283 Opts.ProgramAction = frontend::MigrateSource; break; 1284 case OPT_Eonly: 1285 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1286 } 1287 } 1288 1289 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1290 Opts.Plugins.emplace_back(A->getValue(0)); 1291 Opts.ProgramAction = frontend::PluginAction; 1292 Opts.ActionName = A->getValue(); 1293 } 1294 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1295 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1296 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1297 1298 for (const std::string &Arg : 1299 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1300 std::string BlockName; 1301 unsigned MajorVersion; 1302 unsigned MinorVersion; 1303 bool Hashed; 1304 std::string UserInfo; 1305 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1306 MinorVersion, Hashed, UserInfo)) { 1307 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1308 1309 continue; 1310 } 1311 1312 // Add the testing module file extension. 1313 Opts.ModuleFileExtensions.push_back( 1314 std::make_shared<TestModuleFileExtension>( 1315 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1316 } 1317 1318 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1319 Opts.CodeCompletionAt = 1320 ParsedSourceLocation::FromString(A->getValue()); 1321 if (Opts.CodeCompletionAt.FileName.empty()) 1322 Diags.Report(diag::err_drv_invalid_value) 1323 << A->getAsString(Args) << A->getValue(); 1324 } 1325 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1326 1327 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1328 Opts.Plugins = Args.getAllArgValues(OPT_load); 1329 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1330 Opts.ShowHelp = Args.hasArg(OPT_help); 1331 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1332 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1333 Opts.ShowVersion = Args.hasArg(OPT_version); 1334 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1335 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1336 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1337 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1338 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1339 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1340 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1341 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1342 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1343 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1344 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1345 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1346 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1347 // Only the -fmodule-file=<file> form. 1348 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1349 StringRef Val = A->getValue(); 1350 if (Val.find('=') == StringRef::npos) 1351 Opts.ModuleFiles.push_back(Val); 1352 } 1353 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1354 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1355 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1356 1357 Opts.CodeCompleteOpts.IncludeMacros 1358 = Args.hasArg(OPT_code_completion_macros); 1359 Opts.CodeCompleteOpts.IncludeCodePatterns 1360 = Args.hasArg(OPT_code_completion_patterns); 1361 Opts.CodeCompleteOpts.IncludeGlobals 1362 = !Args.hasArg(OPT_no_code_completion_globals); 1363 Opts.CodeCompleteOpts.IncludeBriefComments 1364 = Args.hasArg(OPT_code_completion_brief_comments); 1365 1366 Opts.OverrideRecordLayoutsFile 1367 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1368 Opts.AuxTriple = 1369 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1370 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1371 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1372 1373 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1374 OPT_arcmt_modify, 1375 OPT_arcmt_migrate)) { 1376 switch (A->getOption().getID()) { 1377 default: 1378 llvm_unreachable("missed a case"); 1379 case OPT_arcmt_check: 1380 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1381 break; 1382 case OPT_arcmt_modify: 1383 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1384 break; 1385 case OPT_arcmt_migrate: 1386 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1387 break; 1388 } 1389 } 1390 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1391 Opts.ARCMTMigrateReportOut 1392 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1393 Opts.ARCMTMigrateEmitARCErrors 1394 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1395 1396 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1397 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1398 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1399 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1400 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1401 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1402 if (Args.hasArg(OPT_objcmt_migrate_property)) 1403 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1404 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1405 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1406 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1407 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1408 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1409 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1410 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1411 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1412 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1413 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1414 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1415 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1416 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1417 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1418 if (Args.hasArg(OPT_objcmt_atomic_property)) 1419 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1420 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1421 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1422 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1423 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1424 if (Args.hasArg(OPT_objcmt_migrate_all)) 1425 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1426 1427 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1428 1429 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1430 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1431 Diags.Report(diag::err_drv_argument_not_allowed_with) 1432 << "ARC migration" << "ObjC migration"; 1433 } 1434 1435 InputKind DashX(InputKind::Unknown); 1436 if (const Arg *A = Args.getLastArg(OPT_x)) { 1437 StringRef XValue = A->getValue(); 1438 1439 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1440 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1441 bool Preprocessed = XValue.consume_back("-cpp-output"); 1442 bool ModuleMap = XValue.consume_back("-module-map"); 1443 IsHeaderFile = 1444 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1445 1446 // Principal languages. 1447 DashX = llvm::StringSwitch<InputKind>(XValue) 1448 .Case("c", InputKind::C) 1449 .Case("cl", InputKind::OpenCL) 1450 .Case("cuda", InputKind::CUDA) 1451 .Case("c++", InputKind::CXX) 1452 .Case("objective-c", InputKind::ObjC) 1453 .Case("objective-c++", InputKind::ObjCXX) 1454 .Case("renderscript", InputKind::RenderScript) 1455 .Default(InputKind::Unknown); 1456 1457 // "objc[++]-cpp-output" is an acceptable synonym for 1458 // "objective-c[++]-cpp-output". 1459 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1460 DashX = llvm::StringSwitch<InputKind>(XValue) 1461 .Case("objc", InputKind::ObjC) 1462 .Case("objc++", InputKind::ObjCXX) 1463 .Default(InputKind::Unknown); 1464 1465 // Some special cases cannot be combined with suffixes. 1466 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1467 DashX = llvm::StringSwitch<InputKind>(XValue) 1468 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1469 .Case("assembler-with-cpp", InputKind::Asm) 1470 .Cases("ast", "pcm", 1471 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1472 .Case("ir", InputKind::LLVM_IR) 1473 .Default(InputKind::Unknown); 1474 1475 if (DashX.isUnknown()) 1476 Diags.Report(diag::err_drv_invalid_value) 1477 << A->getAsString(Args) << A->getValue(); 1478 1479 if (Preprocessed) 1480 DashX = DashX.getPreprocessed(); 1481 if (ModuleMap) 1482 DashX = DashX.withFormat(InputKind::ModuleMap); 1483 } 1484 1485 // '-' is the default input if none is given. 1486 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1487 Opts.Inputs.clear(); 1488 if (Inputs.empty()) 1489 Inputs.push_back("-"); 1490 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1491 InputKind IK = DashX; 1492 if (IK.isUnknown()) { 1493 IK = FrontendOptions::getInputKindForExtension( 1494 StringRef(Inputs[i]).rsplit('.').second); 1495 // FIXME: Warn on this? 1496 if (IK.isUnknown()) 1497 IK = InputKind::C; 1498 // FIXME: Remove this hack. 1499 if (i == 0) 1500 DashX = IK; 1501 } 1502 1503 // The -emit-module action implicitly takes a module map. 1504 if (Opts.ProgramAction == frontend::GenerateModule && 1505 IK.getFormat() == InputKind::Source) 1506 IK = IK.withFormat(InputKind::ModuleMap); 1507 1508 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1509 } 1510 1511 return DashX; 1512 } 1513 1514 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1515 void *MainAddr) { 1516 std::string ClangExecutable = 1517 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1518 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1519 1520 // Compute the path to the resource directory. 1521 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1522 SmallString<128> P(Dir); 1523 if (ClangResourceDir != "") 1524 llvm::sys::path::append(P, ClangResourceDir); 1525 else 1526 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1527 "clang", CLANG_VERSION_STRING); 1528 1529 return P.str(); 1530 } 1531 1532 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1533 const std::string &WorkingDir) { 1534 using namespace options; 1535 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1536 Opts.Verbose = Args.hasArg(OPT_v); 1537 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1538 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1539 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1540 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1541 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1542 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1543 1544 // Canonicalize -fmodules-cache-path before storing it. 1545 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1546 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1547 if (WorkingDir.empty()) 1548 llvm::sys::fs::make_absolute(P); 1549 else 1550 llvm::sys::fs::make_absolute(WorkingDir, P); 1551 } 1552 llvm::sys::path::remove_dots(P); 1553 Opts.ModuleCachePath = P.str(); 1554 1555 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1556 // Only the -fmodule-file=<name>=<file> form. 1557 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1558 StringRef Val = A->getValue(); 1559 if (Val.find('=') != StringRef::npos) 1560 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1561 } 1562 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1563 Opts.AddPrebuiltModulePath(A->getValue()); 1564 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1565 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1566 Opts.ModulesValidateDiagnosticOptions = 1567 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1568 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1569 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1570 Opts.ModuleCachePruneInterval = 1571 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1572 Opts.ModuleCachePruneAfter = 1573 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1574 Opts.ModulesValidateOncePerBuildSession = 1575 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1576 Opts.BuildSessionTimestamp = 1577 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1578 Opts.ModulesValidateSystemHeaders = 1579 Args.hasArg(OPT_fmodules_validate_system_headers); 1580 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1581 Opts.ModuleFormat = A->getValue(); 1582 1583 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1584 StringRef MacroDef = A->getValue(); 1585 Opts.ModulesIgnoreMacros.insert( 1586 llvm::CachedHashString(MacroDef.split('=').first)); 1587 } 1588 1589 // Add -I..., -F..., and -index-header-map options in order. 1590 bool IsIndexHeaderMap = false; 1591 bool IsSysrootSpecified = 1592 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1593 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1594 if (A->getOption().matches(OPT_index_header_map)) { 1595 // -index-header-map applies to the next -I or -F. 1596 IsIndexHeaderMap = true; 1597 continue; 1598 } 1599 1600 frontend::IncludeDirGroup Group = 1601 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1602 1603 bool IsFramework = A->getOption().matches(OPT_F); 1604 std::string Path = A->getValue(); 1605 1606 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1607 SmallString<32> Buffer; 1608 llvm::sys::path::append(Buffer, Opts.Sysroot, 1609 llvm::StringRef(A->getValue()).substr(1)); 1610 Path = Buffer.str(); 1611 } 1612 1613 Opts.AddPath(Path, Group, IsFramework, 1614 /*IgnoreSysroot*/ true); 1615 IsIndexHeaderMap = false; 1616 } 1617 1618 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1619 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1620 for (const Arg *A : 1621 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1622 if (A->getOption().matches(OPT_iprefix)) 1623 Prefix = A->getValue(); 1624 else if (A->getOption().matches(OPT_iwithprefix)) 1625 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1626 else 1627 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1628 } 1629 1630 for (const Arg *A : Args.filtered(OPT_idirafter)) 1631 Opts.AddPath(A->getValue(), frontend::After, false, true); 1632 for (const Arg *A : Args.filtered(OPT_iquote)) 1633 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1634 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1635 Opts.AddPath(A->getValue(), frontend::System, false, 1636 !A->getOption().matches(OPT_iwithsysroot)); 1637 for (const Arg *A : Args.filtered(OPT_iframework)) 1638 Opts.AddPath(A->getValue(), frontend::System, true, true); 1639 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot)) 1640 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1641 /*IgnoreSysRoot=*/false); 1642 1643 // Add the paths for the various language specific isystem flags. 1644 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1645 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1646 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1647 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1648 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1649 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1650 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1651 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1652 1653 // Add the internal paths from a driver that detects standard include paths. 1654 for (const Arg *A : 1655 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1656 frontend::IncludeDirGroup Group = frontend::System; 1657 if (A->getOption().matches(OPT_internal_externc_isystem)) 1658 Group = frontend::ExternCSystem; 1659 Opts.AddPath(A->getValue(), Group, false, true); 1660 } 1661 1662 // Add the path prefixes which are implicitly treated as being system headers. 1663 for (const Arg *A : 1664 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1665 Opts.AddSystemHeaderPrefix( 1666 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1667 1668 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1669 Opts.AddVFSOverlayFile(A->getValue()); 1670 } 1671 1672 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1673 const llvm::Triple &T, 1674 PreprocessorOptions &PPOpts, 1675 LangStandard::Kind LangStd) { 1676 // Set some properties which depend solely on the input kind; it would be nice 1677 // to move these to the language standard, and have the driver resolve the 1678 // input kind + language standard. 1679 // 1680 // FIXME: Perhaps a better model would be for a single source file to have 1681 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 1682 // simultaneously active? 1683 if (IK.getLanguage() == InputKind::Asm) { 1684 Opts.AsmPreprocessor = 1; 1685 } else if (IK.isObjectiveC()) { 1686 Opts.ObjC1 = Opts.ObjC2 = 1; 1687 } 1688 1689 if (LangStd == LangStandard::lang_unspecified) { 1690 // Based on the base language, pick one. 1691 switch (IK.getLanguage()) { 1692 case InputKind::Unknown: 1693 case InputKind::LLVM_IR: 1694 llvm_unreachable("Invalid input kind!"); 1695 case InputKind::OpenCL: 1696 LangStd = LangStandard::lang_opencl10; 1697 break; 1698 case InputKind::CUDA: 1699 LangStd = LangStandard::lang_cuda; 1700 break; 1701 case InputKind::Asm: 1702 case InputKind::C: 1703 // The PS4 uses C99 as the default C standard. 1704 if (T.isPS4()) 1705 LangStd = LangStandard::lang_gnu99; 1706 else 1707 LangStd = LangStandard::lang_gnu11; 1708 break; 1709 case InputKind::ObjC: 1710 LangStd = LangStandard::lang_gnu11; 1711 break; 1712 case InputKind::CXX: 1713 case InputKind::ObjCXX: 1714 // The PS4 uses C++11 as the default C++ standard. 1715 if (T.isPS4()) 1716 LangStd = LangStandard::lang_gnucxx11; 1717 else 1718 LangStd = LangStandard::lang_gnucxx98; 1719 break; 1720 case InputKind::RenderScript: 1721 LangStd = LangStandard::lang_c99; 1722 break; 1723 } 1724 } 1725 1726 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1727 Opts.LineComment = Std.hasLineComments(); 1728 Opts.C99 = Std.isC99(); 1729 Opts.C11 = Std.isC11(); 1730 Opts.CPlusPlus = Std.isCPlusPlus(); 1731 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1732 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1733 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1734 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 1735 Opts.Digraphs = Std.hasDigraphs(); 1736 Opts.GNUMode = Std.isGNUMode(); 1737 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 1738 Opts.HexFloats = Std.hasHexFloats(); 1739 Opts.ImplicitInt = Std.hasImplicitInt(); 1740 1741 // Set OpenCL Version. 1742 Opts.OpenCL = Std.isOpenCL(); 1743 if (LangStd == LangStandard::lang_opencl10) 1744 Opts.OpenCLVersion = 100; 1745 else if (LangStd == LangStandard::lang_opencl11) 1746 Opts.OpenCLVersion = 110; 1747 else if (LangStd == LangStandard::lang_opencl12) 1748 Opts.OpenCLVersion = 120; 1749 else if (LangStd == LangStandard::lang_opencl20) 1750 Opts.OpenCLVersion = 200; 1751 1752 // OpenCL has some additional defaults. 1753 if (Opts.OpenCL) { 1754 Opts.AltiVec = 0; 1755 Opts.ZVector = 0; 1756 Opts.LaxVectorConversions = 0; 1757 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 1758 Opts.NativeHalfType = 1; 1759 Opts.NativeHalfArgsAndReturns = 1; 1760 // Include default header file for OpenCL. 1761 if (Opts.IncludeDefaultHeader) { 1762 PPOpts.Includes.push_back("opencl-c.h"); 1763 } 1764 } 1765 1766 Opts.CUDA = IK.getLanguage() == InputKind::CUDA; 1767 if (Opts.CUDA) 1768 // Set default FP_CONTRACT to FAST. 1769 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 1770 1771 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 1772 if (Opts.RenderScript) { 1773 Opts.NativeHalfType = 1; 1774 Opts.NativeHalfArgsAndReturns = 1; 1775 } 1776 1777 // OpenCL and C++ both have bool, true, false keywords. 1778 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1779 1780 // OpenCL has half keyword 1781 Opts.Half = Opts.OpenCL; 1782 1783 // C++ has wchar_t keyword. 1784 Opts.WChar = Opts.CPlusPlus; 1785 1786 Opts.GNUKeywords = Opts.GNUMode; 1787 Opts.CXXOperatorNames = Opts.CPlusPlus; 1788 1789 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1790 1791 Opts.DollarIdents = !Opts.AsmPreprocessor; 1792 } 1793 1794 /// Attempt to parse a visibility value out of the given argument. 1795 static Visibility parseVisibility(Arg *arg, ArgList &args, 1796 DiagnosticsEngine &diags) { 1797 StringRef value = arg->getValue(); 1798 if (value == "default") { 1799 return DefaultVisibility; 1800 } else if (value == "hidden" || value == "internal") { 1801 return HiddenVisibility; 1802 } else if (value == "protected") { 1803 // FIXME: diagnose if target does not support protected visibility 1804 return ProtectedVisibility; 1805 } 1806 1807 diags.Report(diag::err_drv_invalid_value) 1808 << arg->getAsString(args) << value; 1809 return DefaultVisibility; 1810 } 1811 1812 /// Check if input file kind and language standard are compatible. 1813 static bool IsInputCompatibleWithStandard(InputKind IK, 1814 const LangStandard &S) { 1815 switch (IK.getLanguage()) { 1816 case InputKind::Unknown: 1817 case InputKind::LLVM_IR: 1818 llvm_unreachable("should not parse language flags for this input"); 1819 1820 case InputKind::C: 1821 case InputKind::ObjC: 1822 case InputKind::RenderScript: 1823 return S.getLanguage() == InputKind::C; 1824 1825 case InputKind::OpenCL: 1826 return S.getLanguage() == InputKind::OpenCL; 1827 1828 case InputKind::CXX: 1829 case InputKind::ObjCXX: 1830 return S.getLanguage() == InputKind::CXX; 1831 1832 case InputKind::CUDA: 1833 // FIXME: What -std= values should be permitted for CUDA compilations? 1834 return S.getLanguage() == InputKind::CUDA || 1835 S.getLanguage() == InputKind::CXX; 1836 1837 case InputKind::Asm: 1838 // Accept (and ignore) all -std= values. 1839 // FIXME: The -std= value is not ignored; it affects the tokenization 1840 // and preprocessing rules if we're preprocessing this asm input. 1841 return true; 1842 } 1843 1844 llvm_unreachable("unexpected input language"); 1845 } 1846 1847 /// Get language name for given input kind. 1848 static const StringRef GetInputKindName(InputKind IK) { 1849 switch (IK.getLanguage()) { 1850 case InputKind::C: 1851 return "C"; 1852 case InputKind::ObjC: 1853 return "Objective-C"; 1854 case InputKind::CXX: 1855 return "C++"; 1856 case InputKind::ObjCXX: 1857 return "Objective-C++"; 1858 case InputKind::OpenCL: 1859 return "OpenCL"; 1860 case InputKind::CUDA: 1861 return "CUDA"; 1862 case InputKind::RenderScript: 1863 return "RenderScript"; 1864 1865 case InputKind::Asm: 1866 return "Asm"; 1867 case InputKind::LLVM_IR: 1868 return "LLVM IR"; 1869 1870 case InputKind::Unknown: 1871 break; 1872 } 1873 llvm_unreachable("unknown input language"); 1874 } 1875 1876 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1877 const TargetOptions &TargetOpts, 1878 PreprocessorOptions &PPOpts, 1879 DiagnosticsEngine &Diags) { 1880 // FIXME: Cleanup per-file based stuff. 1881 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1882 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1883 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1884 #define LANGSTANDARD(id, name, lang, desc, features) \ 1885 .Case(name, LangStandard::lang_##id) 1886 #define LANGSTANDARD_ALIAS(id, alias) \ 1887 .Case(alias, LangStandard::lang_##id) 1888 #include "clang/Frontend/LangStandards.def" 1889 .Default(LangStandard::lang_unspecified); 1890 if (LangStd == LangStandard::lang_unspecified) { 1891 Diags.Report(diag::err_drv_invalid_value) 1892 << A->getAsString(Args) << A->getValue(); 1893 // Report supported standards with short description. 1894 for (unsigned KindValue = 0; 1895 KindValue != LangStandard::lang_unspecified; 1896 ++KindValue) { 1897 const LangStandard &Std = LangStandard::getLangStandardForKind( 1898 static_cast<LangStandard::Kind>(KindValue)); 1899 if (IsInputCompatibleWithStandard(IK, Std)) { 1900 auto Diag = Diags.Report(diag::note_drv_use_standard); 1901 Diag << Std.getName() << Std.getDescription(); 1902 unsigned NumAliases = 0; 1903 #define LANGSTANDARD(id, name, lang, desc, features) 1904 #define LANGSTANDARD_ALIAS(id, alias) \ 1905 if (KindValue == LangStandard::lang_##id) ++NumAliases; 1906 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1907 #include "clang/Frontend/LangStandards.def" 1908 Diag << NumAliases; 1909 #define LANGSTANDARD(id, name, lang, desc, features) 1910 #define LANGSTANDARD_ALIAS(id, alias) \ 1911 if (KindValue == LangStandard::lang_##id) Diag << alias; 1912 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1913 #include "clang/Frontend/LangStandards.def" 1914 } 1915 } 1916 } else { 1917 // Valid standard, check to make sure language and standard are 1918 // compatible. 1919 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1920 if (!IsInputCompatibleWithStandard(IK, Std)) { 1921 Diags.Report(diag::err_drv_argument_not_allowed_with) 1922 << A->getAsString(Args) << GetInputKindName(IK); 1923 } 1924 } 1925 } 1926 1927 // -cl-std only applies for OpenCL language standards. 1928 // Override the -std option in this case. 1929 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1930 LangStandard::Kind OpenCLLangStd 1931 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1932 .Cases("cl", "CL", LangStandard::lang_opencl10) 1933 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1934 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1935 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1936 .Default(LangStandard::lang_unspecified); 1937 1938 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1939 Diags.Report(diag::err_drv_invalid_value) 1940 << A->getAsString(Args) << A->getValue(); 1941 } 1942 else 1943 LangStd = OpenCLLangStd; 1944 } 1945 1946 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1947 1948 llvm::Triple T(TargetOpts.Triple); 1949 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1950 1951 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1952 // This option should be deprecated for CL > 1.0 because 1953 // this option was added for compatibility with OpenCL 1.0. 1954 if (Args.getLastArg(OPT_cl_strict_aliasing) 1955 && Opts.OpenCLVersion > 100) { 1956 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1957 std::string(".") + 1958 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1959 Diags.Report(diag::warn_option_invalid_ocl_version) 1960 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1961 } 1962 1963 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1964 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1965 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1966 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1967 // name, as it doesn't seem a useful distinction. 1968 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1969 Opts.GNUKeywords); 1970 1971 if (Args.hasArg(OPT_fno_operator_names)) 1972 Opts.CXXOperatorNames = 0; 1973 1974 if (Args.hasArg(OPT_fcuda_is_device)) 1975 Opts.CUDAIsDevice = 1; 1976 1977 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1978 Opts.CUDAAllowVariadicFunctions = 1; 1979 1980 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1981 Opts.CUDAHostDeviceConstexpr = 0; 1982 1983 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1984 Opts.CUDADeviceFlushDenormalsToZero = 1; 1985 1986 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1987 Opts.CUDADeviceApproxTranscendentals = 1; 1988 1989 if (Opts.ObjC1) { 1990 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1991 StringRef value = arg->getValue(); 1992 if (Opts.ObjCRuntime.tryParse(value)) 1993 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1994 } 1995 1996 if (Args.hasArg(OPT_fobjc_gc_only)) 1997 Opts.setGC(LangOptions::GCOnly); 1998 else if (Args.hasArg(OPT_fobjc_gc)) 1999 Opts.setGC(LangOptions::HybridGC); 2000 else if (Args.hasArg(OPT_fobjc_arc)) { 2001 Opts.ObjCAutoRefCount = 1; 2002 if (!Opts.ObjCRuntime.allowsARC()) 2003 Diags.Report(diag::err_arc_unsupported_on_runtime); 2004 } 2005 2006 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2007 // whether the feature is actually enabled. This is predominantly 2008 // determined by -fobjc-runtime, but we allow it to be overridden 2009 // from the command line for testing purposes. 2010 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2011 Opts.ObjCWeakRuntime = 1; 2012 else 2013 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2014 2015 // ObjCWeak determines whether __weak is actually enabled. 2016 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2017 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2018 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2019 assert(!Opts.ObjCWeak); 2020 } else if (Opts.getGC() != LangOptions::NonGC) { 2021 Diags.Report(diag::err_objc_weak_with_gc); 2022 } else if (!Opts.ObjCWeakRuntime) { 2023 Diags.Report(diag::err_objc_weak_unsupported); 2024 } else { 2025 Opts.ObjCWeak = 1; 2026 } 2027 } else if (Opts.ObjCAutoRefCount) { 2028 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2029 } 2030 2031 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2032 Opts.ObjCInferRelatedResultType = 0; 2033 2034 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2035 Opts.ObjCSubscriptingLegacyRuntime = 2036 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2037 } 2038 2039 if (Args.hasArg(OPT_fgnu89_inline)) { 2040 if (Opts.CPlusPlus) 2041 Diags.Report(diag::err_drv_argument_not_allowed_with) 2042 << "-fgnu89-inline" << GetInputKindName(IK); 2043 else 2044 Opts.GNUInline = 1; 2045 } 2046 2047 if (Args.hasArg(OPT_fapple_kext)) { 2048 if (!Opts.CPlusPlus) 2049 Diags.Report(diag::warn_c_kext); 2050 else 2051 Opts.AppleKext = 1; 2052 } 2053 2054 if (Args.hasArg(OPT_print_ivar_layout)) 2055 Opts.ObjCGCBitmapPrint = 1; 2056 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2057 Opts.NoConstantCFStrings = 1; 2058 2059 if (Args.hasArg(OPT_fzvector)) 2060 Opts.ZVector = 1; 2061 2062 if (Args.hasArg(OPT_pthread)) 2063 Opts.POSIXThreads = 1; 2064 2065 // The value-visibility mode defaults to "default". 2066 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2067 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2068 } else { 2069 Opts.setValueVisibilityMode(DefaultVisibility); 2070 } 2071 2072 // The type-visibility mode defaults to the value-visibility mode. 2073 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2074 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2075 } else { 2076 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2077 } 2078 2079 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2080 Opts.InlineVisibilityHidden = 1; 2081 2082 if (Args.hasArg(OPT_ftrapv)) { 2083 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2084 // Set the handler, if one is specified. 2085 Opts.OverflowHandler = 2086 Args.getLastArgValue(OPT_ftrapv_handler); 2087 } 2088 else if (Args.hasArg(OPT_fwrapv)) 2089 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2090 2091 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2092 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2093 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2094 Opts.MSCompatibilityVersion = 0; 2095 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2096 VersionTuple VT; 2097 if (VT.tryParse(A->getValue())) 2098 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2099 << A->getValue(); 2100 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2101 VT.getMinor().getValueOr(0) * 100000 + 2102 VT.getSubminor().getValueOr(0); 2103 } 2104 2105 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 2106 // is specified, or -std is set to a conforming mode. 2107 // Trigraphs are disabled by default in c++1z onwards. 2108 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 2109 Opts.Trigraphs = 2110 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2111 2112 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2113 OPT_fno_dollars_in_identifiers, 2114 Opts.DollarIdents); 2115 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2116 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2117 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2118 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2119 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2120 Opts.ConstStrings); 2121 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2122 Opts.LaxVectorConversions = 0; 2123 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2124 Opts.ThreadsafeStatics = 0; 2125 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2126 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2127 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2128 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 2129 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2130 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2131 2132 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2133 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2134 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2135 && Opts.OpenCLVersion >= 200); 2136 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2137 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2138 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2139 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2140 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2141 Opts.ModulesDeclUse = 2142 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2143 Opts.ModulesLocalVisibility = 2144 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2145 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2146 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2147 Opts.ModulesSearchAll = Opts.Modules && 2148 !Args.hasArg(OPT_fno_modules_search_all) && 2149 Args.hasArg(OPT_fmodules_search_all); 2150 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2151 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2152 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2153 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2154 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 2155 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2156 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2157 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2158 if (!Opts.NoBuiltin) 2159 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2160 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2161 Opts.RelaxedTemplateTemplateArgs = 2162 Args.hasArg(OPT_frelaxed_template_template_args); 2163 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2164 Opts.AlignedAllocation = 2165 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2166 Opts.AlignedAllocation); 2167 Opts.AlignedAllocationUnavailable = 2168 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2169 Opts.NewAlignOverride = 2170 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2171 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2172 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2173 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2174 << A->getValue(); 2175 Opts.NewAlignOverride = 0; 2176 } 2177 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2178 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2179 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2180 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2181 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2182 Opts.InstantiationDepth = 2183 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2184 Opts.ArrowDepth = 2185 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2186 Opts.ConstexprCallDepth = 2187 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2188 Opts.ConstexprStepLimit = 2189 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2190 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2191 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2192 Opts.NumLargeByValueCopy = 2193 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2194 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2195 Opts.ObjCConstantStringClass = 2196 Args.getLastArgValue(OPT_fconstant_string_class); 2197 Opts.ObjCDefaultSynthProperties = 2198 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2199 Opts.EncodeExtendedBlockSig = 2200 Args.hasArg(OPT_fencode_extended_block_signature); 2201 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2202 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2203 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2204 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2205 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2206 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2207 Opts.Static = Args.hasArg(OPT_static_define); 2208 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2209 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2210 || Args.hasArg(OPT_fdump_record_layouts); 2211 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2212 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2213 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2214 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2215 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2216 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2217 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2218 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2219 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2220 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2221 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2222 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2223 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2224 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2225 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2226 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2227 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2228 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2229 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2230 // is enabled. 2231 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2232 | Opts.NativeHalfArgsAndReturns; 2233 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2234 2235 // __declspec is enabled by default for the PS4 by the driver, and also 2236 // enabled for Microsoft Extensions or Borland Extensions, here. 2237 // 2238 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2239 // CUDA extension. However, it is required for supporting 2240 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2241 // been rewritten in terms of something more generic, remove the Opts.CUDA 2242 // term here. 2243 Opts.DeclSpecKeyword = 2244 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2245 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2246 2247 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2248 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2249 .Case("target", LangOptions::ASMM_Target) 2250 .Case("no", LangOptions::ASMM_Off) 2251 .Case("yes", LangOptions::ASMM_On) 2252 .Default(255)) { 2253 default: 2254 Diags.Report(diag::err_drv_invalid_value) 2255 << "-faddress-space-map-mangling=" << A->getValue(); 2256 break; 2257 case LangOptions::ASMM_Target: 2258 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2259 break; 2260 case LangOptions::ASMM_On: 2261 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2262 break; 2263 case LangOptions::ASMM_Off: 2264 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2265 break; 2266 } 2267 } 2268 2269 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2270 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2271 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2272 A->getValue()) 2273 .Case("single", 2274 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2275 .Case("multiple", 2276 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2277 .Case("virtual", 2278 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2279 .Default(LangOptions::PPTMK_BestCase); 2280 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2281 Diags.Report(diag::err_drv_invalid_value) 2282 << "-fms-memptr-rep=" << A->getValue(); 2283 2284 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2285 } 2286 2287 // Check for MS default calling conventions being specified. 2288 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2289 LangOptions::DefaultCallingConvention DefaultCC = 2290 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2291 A->getValue()) 2292 .Case("cdecl", LangOptions::DCC_CDecl) 2293 .Case("fastcall", LangOptions::DCC_FastCall) 2294 .Case("stdcall", LangOptions::DCC_StdCall) 2295 .Case("vectorcall", LangOptions::DCC_VectorCall) 2296 .Default(LangOptions::DCC_None); 2297 if (DefaultCC == LangOptions::DCC_None) 2298 Diags.Report(diag::err_drv_invalid_value) 2299 << "-fdefault-calling-conv=" << A->getValue(); 2300 2301 llvm::Triple T(TargetOpts.Triple); 2302 llvm::Triple::ArchType Arch = T.getArch(); 2303 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2304 DefaultCC == LangOptions::DCC_StdCall) && 2305 Arch != llvm::Triple::x86; 2306 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2307 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2308 if (emitError) 2309 Diags.Report(diag::err_drv_argument_not_allowed_with) 2310 << A->getSpelling() << T.getTriple(); 2311 else 2312 Opts.setDefaultCallingConv(DefaultCC); 2313 } 2314 2315 // -mrtd option 2316 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2317 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2318 Diags.Report(diag::err_drv_argument_not_allowed_with) 2319 << A->getSpelling() << "-fdefault-calling-conv"; 2320 else { 2321 llvm::Triple T(TargetOpts.Triple); 2322 if (T.getArch() != llvm::Triple::x86) 2323 Diags.Report(diag::err_drv_argument_not_allowed_with) 2324 << A->getSpelling() << T.getTriple(); 2325 else 2326 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2327 } 2328 } 2329 2330 // Check if -fopenmp is specified. 2331 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2332 Opts.OpenMPUseTLS = 2333 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2334 Opts.OpenMPIsDevice = 2335 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2336 2337 if (Opts.OpenMP) { 2338 int Version = 2339 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2340 if (Version != 0) 2341 Opts.OpenMP = Version; 2342 // Provide diagnostic when a given target is not expected to be an OpenMP 2343 // device or host. 2344 if (!Opts.OpenMPIsDevice) { 2345 switch (T.getArch()) { 2346 default: 2347 break; 2348 // Add unsupported host targets here: 2349 case llvm::Triple::nvptx: 2350 case llvm::Triple::nvptx64: 2351 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2352 << TargetOpts.Triple; 2353 break; 2354 } 2355 } 2356 } 2357 2358 // Set the flag to prevent the implementation from emitting device exception 2359 // handling code for those requiring so. 2360 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2361 Opts.Exceptions = 0; 2362 Opts.CXXExceptions = 0; 2363 } 2364 2365 // Get the OpenMP target triples if any. 2366 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2367 2368 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2369 llvm::Triple TT(A->getValue(i)); 2370 2371 if (TT.getArch() == llvm::Triple::UnknownArch || 2372 !(TT.getArch() == llvm::Triple::ppc || 2373 TT.getArch() == llvm::Triple::ppc64 || 2374 TT.getArch() == llvm::Triple::ppc64le || 2375 TT.getArch() == llvm::Triple::nvptx || 2376 TT.getArch() == llvm::Triple::nvptx64 || 2377 TT.getArch() == llvm::Triple::x86 || 2378 TT.getArch() == llvm::Triple::x86_64)) 2379 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2380 else 2381 Opts.OMPTargetTriples.push_back(TT); 2382 } 2383 } 2384 2385 // Get OpenMP host file path if any and report if a non existent file is 2386 // found 2387 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2388 Opts.OMPHostIRFile = A->getValue(); 2389 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2390 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2391 << Opts.OMPHostIRFile; 2392 } 2393 2394 // Record whether the __DEPRECATED define was requested. 2395 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2396 OPT_fno_deprecated_macro, 2397 Opts.Deprecated); 2398 2399 // FIXME: Eliminate this dependency. 2400 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2401 OptSize = getOptimizationLevelSize(Args); 2402 Opts.Optimize = Opt != 0; 2403 Opts.OptimizeSize = OptSize != 0; 2404 2405 // This is the __NO_INLINE__ define, which just depends on things like the 2406 // optimization level and -fno-inline, not actually whether the backend has 2407 // inlining enabled. 2408 Opts.NoInlineDefine = !Opts.Optimize; 2409 if (Arg *InlineArg = Args.getLastArg( 2410 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2411 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2412 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2413 Opts.NoInlineDefine = true; 2414 2415 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2416 Args.hasArg(OPT_cl_fast_relaxed_math); 2417 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2418 Args.hasArg(OPT_cl_finite_math_only) || 2419 Args.hasArg(OPT_cl_fast_relaxed_math); 2420 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2421 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2422 Args.hasArg(OPT_cl_fast_relaxed_math); 2423 2424 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2425 StringRef Val = A->getValue(); 2426 if (Val == "fast") 2427 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2428 else if (Val == "on") 2429 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2430 else if (Val == "off") 2431 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2432 else 2433 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2434 } 2435 2436 Opts.RetainCommentsFromSystemHeaders = 2437 Args.hasArg(OPT_fretain_comments_from_system_headers); 2438 2439 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2440 switch (SSP) { 2441 default: 2442 Diags.Report(diag::err_drv_invalid_value) 2443 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2444 break; 2445 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2446 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2447 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2448 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2449 } 2450 2451 // Parse -fsanitize= arguments. 2452 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2453 Diags, Opts.Sanitize); 2454 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2455 Opts.SanitizeAddressFieldPadding = 2456 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2457 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2458 2459 // -fxray-instrument 2460 Opts.XRayInstrument = 2461 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2462 2463 // -fxray-{always,never}-instrument= filenames. 2464 Opts.XRayAlwaysInstrumentFiles = 2465 Args.getAllArgValues(OPT_fxray_always_instrument); 2466 Opts.XRayNeverInstrumentFiles = 2467 Args.getAllArgValues(OPT_fxray_never_instrument); 2468 2469 // -fallow-editor-placeholders 2470 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2471 } 2472 2473 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 2474 switch (Action) { 2475 case frontend::ASTDeclList: 2476 case frontend::ASTDump: 2477 case frontend::ASTPrint: 2478 case frontend::ASTView: 2479 case frontend::EmitAssembly: 2480 case frontend::EmitBC: 2481 case frontend::EmitHTML: 2482 case frontend::EmitLLVM: 2483 case frontend::EmitLLVMOnly: 2484 case frontend::EmitCodeGenOnly: 2485 case frontend::EmitObj: 2486 case frontend::FixIt: 2487 case frontend::GenerateModule: 2488 case frontend::GenerateModuleInterface: 2489 case frontend::GeneratePCH: 2490 case frontend::GeneratePTH: 2491 case frontend::ParseSyntaxOnly: 2492 case frontend::ModuleFileInfo: 2493 case frontend::VerifyPCH: 2494 case frontend::PluginAction: 2495 case frontend::PrintDeclContext: 2496 case frontend::RewriteObjC: 2497 case frontend::RewriteTest: 2498 case frontend::RunAnalysis: 2499 case frontend::MigrateSource: 2500 return false; 2501 2502 case frontend::DumpRawTokens: 2503 case frontend::DumpTokens: 2504 case frontend::InitOnly: 2505 case frontend::PrintPreamble: 2506 case frontend::PrintPreprocessedInput: 2507 case frontend::RewriteMacros: 2508 case frontend::RunPreprocessorOnly: 2509 return true; 2510 } 2511 llvm_unreachable("invalid frontend action"); 2512 } 2513 2514 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2515 FileManager &FileMgr, 2516 DiagnosticsEngine &Diags, 2517 frontend::ActionKind Action) { 2518 using namespace options; 2519 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2520 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2521 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2522 Opts.TokenCache = A->getValue(); 2523 else 2524 Opts.TokenCache = Opts.ImplicitPTHInclude; 2525 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2526 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2527 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2528 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 2529 2530 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2531 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2532 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2533 2534 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2535 StringRef Value(A->getValue()); 2536 size_t Comma = Value.find(','); 2537 unsigned Bytes = 0; 2538 unsigned EndOfLine = 0; 2539 2540 if (Comma == StringRef::npos || 2541 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2542 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2543 Diags.Report(diag::err_drv_preamble_format); 2544 else { 2545 Opts.PrecompiledPreambleBytes.first = Bytes; 2546 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2547 } 2548 } 2549 2550 // Add macros from the command line. 2551 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2552 if (A->getOption().matches(OPT_D)) 2553 Opts.addMacroDef(A->getValue()); 2554 else 2555 Opts.addMacroUndef(A->getValue()); 2556 } 2557 2558 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2559 2560 // Add the ordered list of -includes. 2561 for (const Arg *A : Args.filtered(OPT_include)) 2562 Opts.Includes.emplace_back(A->getValue()); 2563 2564 for (const Arg *A : Args.filtered(OPT_chain_include)) 2565 Opts.ChainedIncludes.emplace_back(A->getValue()); 2566 2567 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2568 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2569 2570 if (Split.second.empty()) { 2571 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2572 continue; 2573 } 2574 2575 Opts.addRemappedFile(Split.first, Split.second); 2576 } 2577 2578 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2579 StringRef Name = A->getValue(); 2580 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2581 .Case("libc++", ARCXX_libcxx) 2582 .Case("libstdc++", ARCXX_libstdcxx) 2583 .Case("none", ARCXX_nolib) 2584 .Default(~0U); 2585 if (Library == ~0U) 2586 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2587 else 2588 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2589 } 2590 2591 // Always avoid lexing editor placeholders when we're just running the 2592 // preprocessor as we never want to emit the 2593 // "editor placeholder in source file" error in PP only mode. 2594 if (isStrictlyPreprocessorAction(Action)) 2595 Opts.LexEditorPlaceholders = false; 2596 } 2597 2598 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2599 ArgList &Args, 2600 frontend::ActionKind Action) { 2601 using namespace options; 2602 2603 if (isStrictlyPreprocessorAction(Action)) 2604 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2605 else 2606 Opts.ShowCPP = 0; 2607 2608 Opts.ShowComments = Args.hasArg(OPT_C); 2609 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2610 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2611 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2612 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2613 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2614 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 2615 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2616 } 2617 2618 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2619 DiagnosticsEngine &Diags) { 2620 using namespace options; 2621 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2622 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2623 StringRef Value = A->getValue(); 2624 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2625 .Case("default", llvm::EABI::Default) 2626 .Case("4", llvm::EABI::EABI4) 2627 .Case("5", llvm::EABI::EABI5) 2628 .Case("gnu", llvm::EABI::GNU) 2629 .Default(llvm::EABI::Unknown); 2630 if (EABIVersion == llvm::EABI::Unknown) 2631 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2632 << Value; 2633 else 2634 Opts.EABIVersion = EABIVersion; 2635 } 2636 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2637 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2638 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2639 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2640 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2641 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2642 // Use the default target triple if unspecified. 2643 if (Opts.Triple.empty()) 2644 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2645 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2646 } 2647 2648 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2649 const char *const *ArgBegin, 2650 const char *const *ArgEnd, 2651 DiagnosticsEngine &Diags) { 2652 bool Success = true; 2653 2654 // Parse the arguments. 2655 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2656 const unsigned IncludedFlagsBitmask = options::CC1Option; 2657 unsigned MissingArgIndex, MissingArgCount; 2658 InputArgList Args = 2659 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2660 MissingArgCount, IncludedFlagsBitmask); 2661 LangOptions &LangOpts = *Res.getLangOpts(); 2662 2663 // Check for missing argument error. 2664 if (MissingArgCount) { 2665 Diags.Report(diag::err_drv_missing_argument) 2666 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2667 Success = false; 2668 } 2669 2670 // Issue errors on unknown arguments. 2671 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2672 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2673 Success = false; 2674 } 2675 2676 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2677 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2678 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2679 Success &= 2680 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2681 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2682 ParseCommentArgs(LangOpts.CommentOpts, Args); 2683 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2684 // FIXME: We shouldn't have to pass the DashX option around here 2685 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2686 LangOpts.IsHeaderFile); 2687 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2688 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2689 Res.getTargetOpts()); 2690 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2691 Res.getFileSystemOpts().WorkingDir); 2692 if (DashX.getFormat() == InputKind::Precompiled || 2693 DashX.getLanguage() == InputKind::LLVM_IR) { 2694 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2695 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2696 // what the input type is. 2697 if (Args.hasArg(OPT_fobjc_arc)) 2698 LangOpts.ObjCAutoRefCount = 1; 2699 // PIClevel and PIELevel are needed during code generation and this should be 2700 // set regardless of the input type. 2701 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2702 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2703 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2704 Diags, LangOpts.Sanitize); 2705 } else { 2706 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2707 // FIXME: Should we really be calling this for an InputKind::Asm input? 2708 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2709 Res.getPreprocessorOpts(), Diags); 2710 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2711 LangOpts.ObjCExceptions = 1; 2712 } 2713 2714 if (LangOpts.CUDA) { 2715 // During CUDA device-side compilation, the aux triple is the 2716 // triple used for host compilation. 2717 if (LangOpts.CUDAIsDevice) 2718 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2719 } 2720 2721 // Set the triple of the host for OpenMP device compile. 2722 if (LangOpts.OpenMPIsDevice) 2723 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2724 2725 // FIXME: Override value name discarding when asan or msan is used because the 2726 // backend passes depend on the name of the alloca in order to print out 2727 // names. 2728 Res.getCodeGenOpts().DiscardValueNames &= 2729 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2730 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2731 2732 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2733 // PCH file and find the original header name. Remove the need to do that in 2734 // ParsePreprocessorArgs and remove the FileManager 2735 // parameters from the function and the "FileManager.h" #include. 2736 FileManager FileMgr(Res.getFileSystemOpts()); 2737 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags, 2738 Res.getFrontendOpts().ProgramAction); 2739 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2740 Res.getFrontendOpts().ProgramAction); 2741 2742 // Turn on -Wspir-compat for SPIR target. 2743 llvm::Triple T(Res.getTargetOpts().Triple); 2744 auto Arch = T.getArch(); 2745 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2746 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2747 } 2748 return Success; 2749 } 2750 2751 std::string CompilerInvocation::getModuleHash() const { 2752 // Note: For QoI reasons, the things we use as a hash here should all be 2753 // dumped via the -module-info flag. 2754 using llvm::hash_code; 2755 using llvm::hash_value; 2756 using llvm::hash_combine; 2757 2758 // Start the signature with the compiler version. 2759 // FIXME: We'd rather use something more cryptographically sound than 2760 // CityHash, but this will do for now. 2761 hash_code code = hash_value(getClangFullRepositoryVersion()); 2762 2763 // Extend the signature with the language options 2764 #define LANGOPT(Name, Bits, Default, Description) \ 2765 code = hash_combine(code, LangOpts->Name); 2766 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2767 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2768 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2769 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2770 #include "clang/Basic/LangOptions.def" 2771 2772 for (StringRef Feature : LangOpts->ModuleFeatures) 2773 code = hash_combine(code, Feature); 2774 2775 // Extend the signature with the target options. 2776 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2777 TargetOpts->ABI); 2778 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2779 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2780 2781 // Extend the signature with preprocessor options. 2782 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2783 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2784 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2785 2786 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2787 I = getPreprocessorOpts().Macros.begin(), 2788 IEnd = getPreprocessorOpts().Macros.end(); 2789 I != IEnd; ++I) { 2790 // If we're supposed to ignore this macro for the purposes of modules, 2791 // don't put it into the hash. 2792 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2793 // Check whether we're ignoring this macro. 2794 StringRef MacroDef = I->first; 2795 if (hsOpts.ModulesIgnoreMacros.count( 2796 llvm::CachedHashString(MacroDef.split('=').first))) 2797 continue; 2798 } 2799 2800 code = hash_combine(code, I->first, I->second); 2801 } 2802 2803 // Extend the signature with the sysroot and other header search options. 2804 code = hash_combine(code, hsOpts.Sysroot, 2805 hsOpts.ModuleFormat, 2806 hsOpts.UseDebugInfo, 2807 hsOpts.UseBuiltinIncludes, 2808 hsOpts.UseStandardSystemIncludes, 2809 hsOpts.UseStandardCXXIncludes, 2810 hsOpts.UseLibcxx, 2811 hsOpts.ModulesValidateDiagnosticOptions); 2812 code = hash_combine(code, hsOpts.ResourceDir); 2813 2814 // Extend the signature with the user build path. 2815 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2816 2817 // Extend the signature with the module file extensions. 2818 const FrontendOptions &frontendOpts = getFrontendOpts(); 2819 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2820 code = ext->hashExtension(code); 2821 } 2822 2823 // Extend the signature with the enabled sanitizers, if at least one is 2824 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 2825 SanitizerSet SanHash = LangOpts->Sanitize; 2826 SanHash.clear(getPPTransparentSanitizers()); 2827 if (!SanHash.empty()) 2828 code = hash_combine(code, SanHash.Mask); 2829 2830 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2831 } 2832 2833 namespace clang { 2834 2835 template<typename IntTy> 2836 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2837 IntTy Default, 2838 DiagnosticsEngine *Diags) { 2839 IntTy Res = Default; 2840 if (Arg *A = Args.getLastArg(Id)) { 2841 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2842 if (Diags) 2843 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2844 << A->getValue(); 2845 } 2846 } 2847 return Res; 2848 } 2849 2850 2851 // Declared in clang/Frontend/Utils.h. 2852 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2853 DiagnosticsEngine *Diags) { 2854 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2855 } 2856 2857 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2858 uint64_t Default, 2859 DiagnosticsEngine *Diags) { 2860 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2861 } 2862 2863 void BuryPointer(const void *Ptr) { 2864 // This function may be called only a small fixed amount of times per each 2865 // invocation, otherwise we do actually have a leak which we want to report. 2866 // If this function is called more than kGraveYardMaxSize times, the pointers 2867 // will not be properly buried and a leak detector will report a leak, which 2868 // is what we want in such case. 2869 static const size_t kGraveYardMaxSize = 16; 2870 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2871 static std::atomic<unsigned> GraveYardSize; 2872 unsigned Idx = GraveYardSize++; 2873 if (Idx >= kGraveYardMaxSize) 2874 return; 2875 GraveYard[Idx] = Ptr; 2876 } 2877 2878 IntrusiveRefCntPtr<vfs::FileSystem> 2879 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2880 DiagnosticsEngine &Diags) { 2881 return createVFSFromCompilerInvocation(CI, Diags, vfs::getRealFileSystem()); 2882 } 2883 2884 IntrusiveRefCntPtr<vfs::FileSystem> 2885 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2886 DiagnosticsEngine &Diags, 2887 IntrusiveRefCntPtr<vfs::FileSystem> BaseFS) { 2888 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2889 return BaseFS; 2890 2891 IntrusiveRefCntPtr<vfs::OverlayFileSystem> Overlay( 2892 new vfs::OverlayFileSystem(BaseFS)); 2893 // earlier vfs files are on the bottom 2894 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2895 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2896 BaseFS->getBufferForFile(File); 2897 if (!Buffer) { 2898 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2899 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2900 } 2901 2902 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2903 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2904 if (!FS.get()) { 2905 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2906 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2907 } 2908 Overlay->pushOverlay(FS); 2909 } 2910 return Overlay; 2911 } 2912 } // end namespace clang 2913