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