1 //===--- CompilerInvocation.cpp -------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Frontend/CompilerInvocation.h" 11 #include "TestModuleFileExtension.h" 12 #include "clang/Basic/Builtins.h" 13 #include "clang/Basic/FileManager.h" 14 #include "clang/Basic/Version.h" 15 #include "clang/Config/config.h" 16 #include "clang/Driver/DriverDiagnostic.h" 17 #include "clang/Driver/Options.h" 18 #include "clang/Driver/Util.h" 19 #include "clang/Frontend/FrontendDiagnostic.h" 20 #include "clang/Frontend/LangStandard.h" 21 #include "clang/Frontend/Utils.h" 22 #include "clang/Lex/HeaderSearchOptions.h" 23 #include "clang/Lex/PreprocessorOptions.h" 24 #include "clang/Serialization/ASTReader.h" 25 #include "clang/Serialization/ModuleFileExtension.h" 26 #include "llvm/ADT/Hashing.h" 27 #include "llvm/ADT/STLExtras.h" 28 #include "llvm/ADT/SmallVector.h" 29 #include "llvm/ADT/StringExtras.h" 30 #include "llvm/ADT/StringSwitch.h" 31 #include "llvm/ADT/Triple.h" 32 #include "llvm/Linker/Linker.h" 33 #include "llvm/Option/Arg.h" 34 #include "llvm/Option/ArgList.h" 35 #include "llvm/Option/OptTable.h" 36 #include "llvm/Option/Option.h" 37 #include "llvm/ProfileData/InstrProfReader.h" 38 #include "llvm/Support/CodeGen.h" 39 #include "llvm/Support/ErrorHandling.h" 40 #include "llvm/Support/FileSystem.h" 41 #include "llvm/Support/Host.h" 42 #include "llvm/Support/Path.h" 43 #include "llvm/Support/Process.h" 44 #include "llvm/Target/TargetOptions.h" 45 #include "llvm/Support/ScopedPrinter.h" 46 #include <atomic> 47 #include <memory> 48 #include <sys/stat.h> 49 #include <system_error> 50 using namespace clang; 51 52 //===----------------------------------------------------------------------===// 53 // Initialization. 54 //===----------------------------------------------------------------------===// 55 56 CompilerInvocationBase::CompilerInvocationBase() 57 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 58 DiagnosticOpts(new DiagnosticOptions()), 59 HeaderSearchOpts(new HeaderSearchOptions()), 60 PreprocessorOpts(new PreprocessorOptions()) {} 61 62 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 63 : LangOpts(new LangOptions(*X.getLangOpts())), 64 TargetOpts(new TargetOptions(X.getTargetOpts())), 65 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 66 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 67 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 68 69 CompilerInvocationBase::~CompilerInvocationBase() {} 70 71 //===----------------------------------------------------------------------===// 72 // Deserialization (from args) 73 //===----------------------------------------------------------------------===// 74 75 using namespace clang::driver; 76 using namespace clang::driver::options; 77 using namespace llvm::opt; 78 79 // 80 81 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 82 DiagnosticsEngine &Diags) { 83 unsigned DefaultOpt = 0; 84 if (IK.getLanguage() == InputKind::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 85 DefaultOpt = 2; 86 87 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 88 if (A->getOption().matches(options::OPT_O0)) 89 return 0; 90 91 if (A->getOption().matches(options::OPT_Ofast)) 92 return 3; 93 94 assert (A->getOption().matches(options::OPT_O)); 95 96 StringRef S(A->getValue()); 97 if (S == "s" || S == "z" || S.empty()) 98 return 2; 99 100 if (S == "g") 101 return 1; 102 103 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 104 } 105 106 return DefaultOpt; 107 } 108 109 static unsigned getOptimizationLevelSize(ArgList &Args) { 110 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 111 if (A->getOption().matches(options::OPT_O)) { 112 switch (A->getValue()[0]) { 113 default: 114 return 0; 115 case 's': 116 return 1; 117 case 'z': 118 return 2; 119 } 120 } 121 } 122 return 0; 123 } 124 125 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 126 OptSpecifier GroupWithValue, 127 std::vector<std::string> &Diagnostics) { 128 for (Arg *A : Args.filtered(Group)) { 129 if (A->getOption().getKind() == Option::FlagClass) { 130 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 131 // its name (minus the "W" or "R" at the beginning) to the warning list. 132 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 133 } else if (A->getOption().matches(GroupWithValue)) { 134 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 135 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 136 } else { 137 // Otherwise, add its value (for OPT_W_Joined and similar). 138 for (const char *Arg : A->getValues()) 139 Diagnostics.emplace_back(Arg); 140 } 141 } 142 } 143 144 static void getAllNoBuiltinFuncValues(ArgList &Args, 145 std::vector<std::string> &Funcs) { 146 SmallVector<const char *, 8> Values; 147 for (const auto &Arg : Args) { 148 const Option &O = Arg->getOption(); 149 if (O.matches(options::OPT_fno_builtin_)) { 150 const char *FuncName = Arg->getValue(); 151 if (Builtin::Context::isBuiltinFunc(FuncName)) 152 Values.push_back(FuncName); 153 } 154 } 155 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 156 } 157 158 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 159 DiagnosticsEngine &Diags) { 160 using namespace options; 161 bool Success = true; 162 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 163 StringRef Name = A->getValue(); 164 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 165 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 166 .Case(CMDFLAG, NAME##Model) 167 #include "clang/StaticAnalyzer/Core/Analyses.def" 168 .Default(NumStores); 169 if (Value == NumStores) { 170 Diags.Report(diag::err_drv_invalid_value) 171 << A->getAsString(Args) << Name; 172 Success = false; 173 } else { 174 Opts.AnalysisStoreOpt = Value; 175 } 176 } 177 178 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 179 StringRef Name = A->getValue(); 180 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 181 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 182 .Case(CMDFLAG, NAME##Model) 183 #include "clang/StaticAnalyzer/Core/Analyses.def" 184 .Default(NumConstraints); 185 if (Value == NumConstraints) { 186 Diags.Report(diag::err_drv_invalid_value) 187 << A->getAsString(Args) << Name; 188 Success = false; 189 } else { 190 Opts.AnalysisConstraintsOpt = Value; 191 } 192 } 193 194 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 195 StringRef Name = A->getValue(); 196 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 197 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 198 .Case(CMDFLAG, PD_##NAME) 199 #include "clang/StaticAnalyzer/Core/Analyses.def" 200 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 201 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 202 Diags.Report(diag::err_drv_invalid_value) 203 << A->getAsString(Args) << Name; 204 Success = false; 205 } else { 206 Opts.AnalysisDiagOpt = Value; 207 } 208 } 209 210 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 211 StringRef Name = A->getValue(); 212 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 213 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 214 .Case(CMDFLAG, NAME) 215 #include "clang/StaticAnalyzer/Core/Analyses.def" 216 .Default(NumPurgeModes); 217 if (Value == NumPurgeModes) { 218 Diags.Report(diag::err_drv_invalid_value) 219 << A->getAsString(Args) << Name; 220 Success = false; 221 } else { 222 Opts.AnalysisPurgeOpt = Value; 223 } 224 } 225 226 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 227 StringRef Name = A->getValue(); 228 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 229 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 230 .Case(CMDFLAG, NAME) 231 #include "clang/StaticAnalyzer/Core/Analyses.def" 232 .Default(NumInliningModes); 233 if (Value == NumInliningModes) { 234 Diags.Report(diag::err_drv_invalid_value) 235 << A->getAsString(Args) << Name; 236 Success = false; 237 } else { 238 Opts.InliningMode = Value; 239 } 240 } 241 242 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 243 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 244 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 245 246 Opts.visualizeExplodedGraphWithGraphViz = 247 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 248 Opts.visualizeExplodedGraphWithUbiGraph = 249 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 250 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 251 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 252 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 253 Opts.AnalyzeNestedBlocks = 254 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 255 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 256 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 257 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 258 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 259 Opts.maxBlockVisitOnPath = 260 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 261 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 262 Opts.InlineMaxStackDepth = 263 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 264 Opts.InlineMaxStackDepth, Diags); 265 266 Opts.CheckersControlList.clear(); 267 for (const Arg *A : 268 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 269 A->claim(); 270 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 271 // We can have a list of comma separated checker names, e.g: 272 // '-analyzer-checker=cocoa,unix' 273 StringRef checkerList = A->getValue(); 274 SmallVector<StringRef, 4> checkers; 275 checkerList.split(checkers, ","); 276 for (StringRef checker : checkers) 277 Opts.CheckersControlList.emplace_back(checker, enable); 278 } 279 280 // Go through the analyzer configuration options. 281 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 282 A->claim(); 283 // We can have a list of comma separated config names, e.g: 284 // '-analyzer-config key1=val1,key2=val2' 285 StringRef configList = A->getValue(); 286 SmallVector<StringRef, 4> configVals; 287 configList.split(configVals, ","); 288 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 289 StringRef key, val; 290 std::tie(key, val) = configVals[i].split("="); 291 if (val.empty()) { 292 Diags.Report(SourceLocation(), 293 diag::err_analyzer_config_no_value) << configVals[i]; 294 Success = false; 295 break; 296 } 297 if (val.find('=') != StringRef::npos) { 298 Diags.Report(SourceLocation(), 299 diag::err_analyzer_config_multiple_values) 300 << configVals[i]; 301 Success = false; 302 break; 303 } 304 Opts.Config[key] = val; 305 } 306 } 307 308 return Success; 309 } 310 311 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 312 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 313 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 314 return true; 315 } 316 317 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 318 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 319 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 320 } 321 322 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 323 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 324 StringRef Value = A->getValue(); 325 if (Value == "small" || Value == "kernel" || Value == "medium" || 326 Value == "large") 327 return Value; 328 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 329 } 330 return "default"; 331 } 332 333 static StringRef getRelocModel(ArgList &Args, DiagnosticsEngine &Diags) { 334 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 335 StringRef Value = A->getValue(); 336 if (Value == "static" || Value == "pic" || Value == "ropi" || 337 Value == "rwpi" || Value == "ropi-rwpi" || Value == "dynamic-no-pic") 338 return Value; 339 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 340 } 341 return "pic"; 342 } 343 344 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 345 /// It returns a pointer to the newly generated Regex instance. 346 static std::shared_ptr<llvm::Regex> 347 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 348 Arg *RpassArg) { 349 StringRef Val = RpassArg->getValue(); 350 std::string RegexError; 351 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 352 if (!Pattern->isValid(RegexError)) { 353 Diags.Report(diag::err_drv_optimization_remark_pattern) 354 << RegexError << RpassArg->getAsString(Args); 355 Pattern.reset(); 356 } 357 return Pattern; 358 } 359 360 static bool parseDiagnosticLevelMask(StringRef FlagName, 361 const std::vector<std::string> &Levels, 362 DiagnosticsEngine *Diags, 363 DiagnosticLevelMask &M) { 364 bool Success = true; 365 for (const auto &Level : Levels) { 366 DiagnosticLevelMask const PM = 367 llvm::StringSwitch<DiagnosticLevelMask>(Level) 368 .Case("note", DiagnosticLevelMask::Note) 369 .Case("remark", DiagnosticLevelMask::Remark) 370 .Case("warning", DiagnosticLevelMask::Warning) 371 .Case("error", DiagnosticLevelMask::Error) 372 .Default(DiagnosticLevelMask::None); 373 if (PM == DiagnosticLevelMask::None) { 374 Success = false; 375 if (Diags) 376 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 377 } 378 M = M | PM; 379 } 380 return Success; 381 } 382 383 static void parseSanitizerKinds(StringRef FlagName, 384 const std::vector<std::string> &Sanitizers, 385 DiagnosticsEngine &Diags, SanitizerSet &S) { 386 for (const auto &Sanitizer : Sanitizers) { 387 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 388 if (K == 0) 389 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 390 else 391 S.set(K, true); 392 } 393 } 394 395 // Set the profile kind for fprofile-instrument. 396 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 397 DiagnosticsEngine &Diags) { 398 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 399 if (A == nullptr) 400 return; 401 StringRef S = A->getValue(); 402 unsigned I = llvm::StringSwitch<unsigned>(S) 403 .Case("none", CodeGenOptions::ProfileNone) 404 .Case("clang", CodeGenOptions::ProfileClangInstr) 405 .Case("llvm", CodeGenOptions::ProfileIRInstr) 406 .Default(~0U); 407 if (I == ~0U) { 408 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 409 << S; 410 return; 411 } 412 CodeGenOptions::ProfileInstrKind Instrumentor = 413 static_cast<CodeGenOptions::ProfileInstrKind>(I); 414 Opts.setProfileInstr(Instrumentor); 415 } 416 417 // Set the profile kind using fprofile-instrument-use-path. 418 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 419 const Twine &ProfileName) { 420 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 421 // In error, return silently and let Clang PGOUse report the error message. 422 if (auto E = ReaderOrErr.takeError()) { 423 llvm::consumeError(std::move(E)); 424 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 425 return; 426 } 427 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 428 std::move(ReaderOrErr.get()); 429 if (PGOReader->isIRLevelProfile()) 430 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 431 else 432 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 433 } 434 435 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 436 DiagnosticsEngine &Diags, 437 const TargetOptions &TargetOpts) { 438 using namespace options; 439 bool Success = true; 440 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 441 442 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 443 // TODO: This could be done in Driver 444 unsigned MaxOptLevel = 3; 445 if (OptimizationLevel > MaxOptLevel) { 446 // If the optimization level is not supported, fall back on the default 447 // optimization 448 Diags.Report(diag::warn_drv_optimization_value) 449 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 450 OptimizationLevel = MaxOptLevel; 451 } 452 Opts.OptimizationLevel = OptimizationLevel; 453 454 // At O0 we want to fully disable inlining outside of cases marked with 455 // 'alwaysinline' that are required for correctness. 456 Opts.setInlining((Opts.OptimizationLevel == 0) 457 ? CodeGenOptions::OnlyAlwaysInlining 458 : CodeGenOptions::NormalInlining); 459 // Explicit inlining flags can disable some or all inlining even at 460 // optimization levels above zero. 461 if (Arg *InlineArg = Args.getLastArg( 462 options::OPT_finline_functions, options::OPT_finline_hint_functions, 463 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 464 if (Opts.OptimizationLevel > 0) { 465 const Option &InlineOpt = InlineArg->getOption(); 466 if (InlineOpt.matches(options::OPT_finline_functions)) 467 Opts.setInlining(CodeGenOptions::NormalInlining); 468 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 469 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 470 else 471 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 472 } 473 } 474 475 Opts.ExperimentalNewPassManager = Args.hasFlag( 476 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 477 /* Default */ false); 478 479 Opts.DebugPassManager = 480 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 481 /* Default */ false); 482 483 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 484 StringRef Name = A->getValue(); 485 if (Name == "Accelerate") 486 Opts.setVecLib(CodeGenOptions::Accelerate); 487 else if (Name == "SVML") 488 Opts.setVecLib(CodeGenOptions::SVML); 489 else if (Name == "none") 490 Opts.setVecLib(CodeGenOptions::NoLibrary); 491 else 492 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 493 } 494 495 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 496 unsigned Val = 497 llvm::StringSwitch<unsigned>(A->getValue()) 498 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 499 .Case("limited", codegenoptions::LimitedDebugInfo) 500 .Case("standalone", codegenoptions::FullDebugInfo) 501 .Default(~0U); 502 if (Val == ~0U) 503 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 504 << A->getValue(); 505 else 506 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 507 } 508 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 509 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 510 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 511 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 512 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 513 .Default(~0U); 514 if (Val == ~0U) 515 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 516 << A->getValue(); 517 else 518 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 519 } 520 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 521 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 522 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 523 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 524 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 525 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 526 Opts.EnableSplitDwarf = Args.hasArg(OPT_enable_split_dwarf); 527 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 528 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 529 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 530 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 531 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 532 533 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 534 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 535 536 if (const Arg *A = 537 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 538 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 539 540 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 541 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 542 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 543 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 544 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 545 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 546 OPT_fuse_register_sized_bitfield_access); 547 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 548 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 549 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 550 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 551 Opts.NoCommon = Args.hasArg(OPT_fno_common); 552 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 553 Opts.OptimizeSize = getOptimizationLevelSize(Args); 554 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 555 Args.hasArg(OPT_ffreestanding)); 556 if (Opts.SimplifyLibCalls) 557 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 558 Opts.UnrollLoops = 559 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 560 (Opts.OptimizationLevel > 1)); 561 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 562 563 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 564 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 565 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 566 Opts.DebugInfoForProfiling = Args.hasFlag( 567 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 568 Opts.GnuPubnames = Args.hasArg(OPT_ggnu_pubnames); 569 570 setPGOInstrumentor(Opts, Args, Diags); 571 Opts.InstrProfileOutput = 572 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 573 Opts.ProfileInstrumentUsePath = 574 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 575 if (!Opts.ProfileInstrumentUsePath.empty()) 576 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 577 578 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 579 Opts.setClangABICompat(CodeGenOptions::ClangABI::Latest); 580 581 StringRef Ver = A->getValue(); 582 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 583 unsigned Major, Minor = 0; 584 585 // Check the version number is valid: either 3.x (0 <= x <= 9) or 586 // y or y.0 (4 <= y <= current version). 587 if (!VerParts.first.startswith("0") && 588 !VerParts.first.getAsInteger(10, Major) && 589 3 <= Major && Major <= CLANG_VERSION_MAJOR && 590 (Major == 3 ? VerParts.second.size() == 1 && 591 !VerParts.second.getAsInteger(10, Minor) 592 : VerParts.first.size() == Ver.size() || 593 VerParts.second == "0")) { 594 // Got a valid version number. 595 if (Major == 3 && Minor <= 8) 596 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver3_8); 597 else if (Major <= 4) 598 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver4); 599 } else if (Ver != "latest") { 600 Diags.Report(diag::err_drv_invalid_value) 601 << A->getAsString(Args) << A->getValue(); 602 } 603 } 604 605 Opts.CoverageMapping = 606 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 607 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 608 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 609 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 610 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 611 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 612 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 613 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 614 Opts.CodeModel = getCodeModel(Args, Diags); 615 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 616 Opts.DisableFPElim = 617 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 618 Opts.DisableFree = Args.hasArg(OPT_disable_free); 619 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 620 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 621 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 622 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 623 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 624 Args.hasArg(OPT_cl_fast_relaxed_math); 625 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 626 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 627 Args.hasArg(OPT_cl_finite_math_only) || 628 Args.hasArg(OPT_cl_fast_relaxed_math)); 629 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 630 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 631 Args.hasArg(OPT_cl_finite_math_only) || 632 Args.hasArg(OPT_cl_fast_relaxed_math)); 633 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 634 Args.hasArg(OPT_cl_no_signed_zeros) || 635 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 636 Args.hasArg(OPT_cl_fast_relaxed_math)); 637 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 638 Opts.CorrectlyRoundedDivSqrt = 639 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 640 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 641 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 642 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 643 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 644 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 645 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 646 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 647 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 648 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 649 Opts.IncrementalLinkerCompatible = 650 Args.hasArg(OPT_mincremental_linker_compatible); 651 Opts.PIECopyRelocations = 652 Args.hasArg(OPT_mpie_copy_relocations); 653 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 654 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 655 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 656 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 657 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 658 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 659 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 660 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 661 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 662 Args.hasArg(OPT_cl_fast_relaxed_math); 663 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 664 Opts.RelocationModel = getRelocModel(Args, Diags); 665 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 666 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 667 Diags.Report(diag::err_drv_invalid_value) 668 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 669 << Opts.ThreadModel; 670 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 671 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 672 673 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 674 OPT_fno_function_sections, false); 675 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 676 OPT_fno_data_sections, false); 677 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 678 OPT_fno_unique_section_names, true); 679 680 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 681 682 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 683 684 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 685 686 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 687 Opts.EmitSummaryIndex = false; 688 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 689 StringRef S = A->getValue(); 690 if (S == "thin") 691 Opts.EmitSummaryIndex = true; 692 else if (S != "full") 693 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 694 } 695 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 696 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 697 if (IK.getLanguage() != InputKind::LLVM_IR) 698 Diags.Report(diag::err_drv_argument_only_allowed_with) 699 << A->getAsString(Args) << "-x ir"; 700 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 701 } 702 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 703 704 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 705 706 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 707 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 708 709 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 710 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 711 712 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 713 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 714 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 715 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 716 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 717 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 718 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 719 Opts.CoverageNoFunctionNamesInData = 720 Args.hasArg(OPT_coverage_no_function_names_in_data); 721 Opts.CoverageExitBlockBeforeBody = 722 Args.hasArg(OPT_coverage_exit_block_before_body); 723 if (Args.hasArg(OPT_coverage_version_EQ)) { 724 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 725 if (CoverageVersion.size() != 4) { 726 Diags.Report(diag::err_drv_invalid_value) 727 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 728 << CoverageVersion; 729 } else { 730 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 731 } 732 } 733 } 734 // Handle -fembed-bitcode option. 735 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 736 StringRef Name = A->getValue(); 737 unsigned Model = llvm::StringSwitch<unsigned>(Name) 738 .Case("off", CodeGenOptions::Embed_Off) 739 .Case("all", CodeGenOptions::Embed_All) 740 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 741 .Case("marker", CodeGenOptions::Embed_Marker) 742 .Default(~0U); 743 if (Model == ~0U) { 744 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 745 Success = false; 746 } else 747 Opts.setEmbedBitcode( 748 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 749 } 750 // FIXME: For backend options that are not yet recorded as function 751 // attributes in the IR, keep track of them so we can embed them in a 752 // separate data section and use them when building the bitcode. 753 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 754 for (const auto &A : Args) { 755 // Do not encode output and input. 756 if (A->getOption().getID() == options::OPT_o || 757 A->getOption().getID() == options::OPT_INPUT || 758 A->getOption().getID() == options::OPT_x || 759 A->getOption().getID() == options::OPT_fembed_bitcode || 760 (A->getOption().getGroup().isValid() && 761 A->getOption().getGroup().getID() == options::OPT_W_Group)) 762 continue; 763 ArgStringList ASL; 764 A->render(Args, ASL); 765 for (const auto &arg : ASL) { 766 StringRef ArgStr(arg); 767 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 768 // using \00 to seperate each commandline options. 769 Opts.CmdArgs.push_back('\0'); 770 } 771 } 772 } 773 774 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 775 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 776 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 777 Opts.XRayInstructionThreshold = 778 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 779 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 780 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 781 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 782 783 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 784 OPT_compress_debug_sections_EQ)) { 785 if (A->getOption().getID() == OPT_compress_debug_sections) { 786 // TODO: be more clever about the compression type auto-detection 787 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 788 } else { 789 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 790 .Case("none", llvm::DebugCompressionType::None) 791 .Case("zlib", llvm::DebugCompressionType::Z) 792 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 793 .Default(llvm::DebugCompressionType::None); 794 Opts.setCompressDebugSections(DCT); 795 } 796 } 797 798 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 799 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 800 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 801 CodeGenOptions::BitcodeFileToLink F; 802 F.Filename = A->getValue(); 803 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) { 804 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 805 // When linking CUDA bitcode, propagate function attributes so that 806 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 807 F.PropagateAttrs = true; 808 F.Internalize = true; 809 } 810 Opts.LinkBitcodeFiles.push_back(F); 811 } 812 Opts.SanitizeCoverageType = 813 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 814 Opts.SanitizeCoverageIndirectCalls = 815 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 816 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 817 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 818 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 819 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 820 Opts.SanitizeCoverage8bitCounters = 821 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 822 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 823 Opts.SanitizeCoverageTracePCGuard = 824 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 825 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 826 Opts.SanitizeCoverageInline8bitCounters = 827 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 828 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 829 Opts.SanitizeCoverageStackDepth = 830 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 831 Opts.SanitizeMemoryTrackOrigins = 832 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 833 Opts.SanitizeMemoryUseAfterDtor = 834 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 835 OPT_fno_sanitize_memory_use_after_dtor, 836 false); 837 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 838 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 839 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 840 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 841 OPT_fno_sanitize_address_use_after_scope)) { 842 Opts.SanitizeAddressUseAfterScope = 843 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 844 } 845 Opts.SanitizeAddressGlobalsDeadStripping = 846 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 847 Opts.SSPBufferSize = 848 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 849 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 850 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 851 StringRef Val = A->getValue(); 852 unsigned StackAlignment = Opts.StackAlignment; 853 Val.getAsInteger(10, StackAlignment); 854 Opts.StackAlignment = StackAlignment; 855 } 856 857 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 858 StringRef Val = A->getValue(); 859 unsigned StackProbeSize = Opts.StackProbeSize; 860 Val.getAsInteger(0, StackProbeSize); 861 Opts.StackProbeSize = StackProbeSize; 862 } 863 864 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 865 StringRef Name = A->getValue(); 866 unsigned Method = llvm::StringSwitch<unsigned>(Name) 867 .Case("legacy", CodeGenOptions::Legacy) 868 .Case("non-legacy", CodeGenOptions::NonLegacy) 869 .Case("mixed", CodeGenOptions::Mixed) 870 .Default(~0U); 871 if (Method == ~0U) { 872 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 873 Success = false; 874 } else { 875 Opts.setObjCDispatchMethod( 876 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 877 } 878 } 879 880 Opts.EmulatedTLS = 881 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 882 883 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 884 StringRef Name = A->getValue(); 885 unsigned Model = llvm::StringSwitch<unsigned>(Name) 886 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 887 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 888 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 889 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 890 .Default(~0U); 891 if (Model == ~0U) { 892 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 893 Success = false; 894 } else { 895 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 896 } 897 } 898 899 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 900 StringRef Val = A->getValue(); 901 if (Val == "ieee") 902 Opts.FPDenormalMode = "ieee"; 903 else if (Val == "preserve-sign") 904 Opts.FPDenormalMode = "preserve-sign"; 905 else if (Val == "positive-zero") 906 Opts.FPDenormalMode = "positive-zero"; 907 else 908 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 909 } 910 911 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 912 if (A->getOption().matches(OPT_fpcc_struct_return)) { 913 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 914 } else { 915 assert(A->getOption().matches(OPT_freg_struct_return)); 916 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 917 } 918 } 919 920 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 921 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 922 bool NeedLocTracking = false; 923 924 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 925 if (!Opts.OptRecordFile.empty()) 926 NeedLocTracking = true; 927 928 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 929 Opts.OptimizationRemarkPattern = 930 GenerateOptimizationRemarkRegex(Diags, Args, A); 931 NeedLocTracking = true; 932 } 933 934 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 935 Opts.OptimizationRemarkMissedPattern = 936 GenerateOptimizationRemarkRegex(Diags, Args, A); 937 NeedLocTracking = true; 938 } 939 940 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 941 Opts.OptimizationRemarkAnalysisPattern = 942 GenerateOptimizationRemarkRegex(Diags, Args, A); 943 NeedLocTracking = true; 944 } 945 946 Opts.DiagnosticsWithHotness = 947 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 948 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 949 bool UsingProfile = UsingSampleProfile || 950 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 951 952 if (Opts.DiagnosticsWithHotness && !UsingProfile) 953 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 954 << "-fdiagnostics-show-hotness"; 955 956 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 957 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 958 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 959 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 960 << "-fdiagnostics-hotness-threshold="; 961 962 // If the user requested to use a sample profile for PGO, then the 963 // backend will need to track source location information so the profile 964 // can be incorporated into the IR. 965 if (UsingSampleProfile) 966 NeedLocTracking = true; 967 968 // If the user requested a flag that requires source locations available in 969 // the backend, make sure that the backend tracks source location information. 970 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 971 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 972 973 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 974 975 // Parse -fsanitize-recover= arguments. 976 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 977 parseSanitizerKinds("-fsanitize-recover=", 978 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 979 Opts.SanitizeRecover); 980 parseSanitizerKinds("-fsanitize-trap=", 981 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 982 Opts.SanitizeTrap); 983 984 Opts.CudaGpuBinaryFileNames = 985 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 986 987 Opts.Backchain = Args.hasArg(OPT_mbackchain); 988 989 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 990 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 991 992 return Success; 993 } 994 995 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 996 ArgList &Args) { 997 using namespace options; 998 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 999 Opts.Targets = Args.getAllArgValues(OPT_MT); 1000 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1001 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1002 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1003 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1004 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1005 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1006 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 1007 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1008 Opts.ModuleDependencyOutputDir = 1009 Args.getLastArgValue(OPT_module_dependency_dir); 1010 if (Args.hasArg(OPT_MV)) 1011 Opts.OutputFormat = DependencyOutputFormat::NMake; 1012 // Add sanitizer blacklists as extra dependencies. 1013 // They won't be discovered by the regular preprocessor, so 1014 // we let make / ninja to know about this implicit dependency. 1015 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1016 // Only the -fmodule-file=<file> form. 1017 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1018 StringRef Val = A->getValue(); 1019 if (Val.find('=') == StringRef::npos) 1020 Opts.ExtraDeps.push_back(Val); 1021 } 1022 } 1023 1024 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1025 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1026 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1027 // Support both clang's -f[no-]color-diagnostics and gcc's 1028 // -f[no-]diagnostics-colors[=never|always|auto]. 1029 enum { 1030 Colors_On, 1031 Colors_Off, 1032 Colors_Auto 1033 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1034 for (Arg *A : Args) { 1035 const Option &O = A->getOption(); 1036 if (O.matches(options::OPT_fcolor_diagnostics) || 1037 O.matches(options::OPT_fdiagnostics_color)) { 1038 ShowColors = Colors_On; 1039 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1040 O.matches(options::OPT_fno_diagnostics_color)) { 1041 ShowColors = Colors_Off; 1042 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1043 StringRef Value(A->getValue()); 1044 if (Value == "always") 1045 ShowColors = Colors_On; 1046 else if (Value == "never") 1047 ShowColors = Colors_Off; 1048 else if (Value == "auto") 1049 ShowColors = Colors_Auto; 1050 } 1051 } 1052 return ShowColors == Colors_On || 1053 (ShowColors == Colors_Auto && 1054 llvm::sys::Process::StandardErrHasColors()); 1055 } 1056 1057 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1058 DiagnosticsEngine *Diags, 1059 bool DefaultDiagColor, bool DefaultShowOpt) { 1060 using namespace options; 1061 bool Success = true; 1062 1063 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1064 if (Arg *A = 1065 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1066 Opts.DiagnosticSerializationFile = A->getValue(); 1067 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1068 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1069 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1070 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1071 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1072 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1073 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1074 OPT_fno_show_column, 1075 /*Default=*/true); 1076 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1077 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1078 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1079 Opts.ShowOptionNames = 1080 Args.hasFlag(OPT_fdiagnostics_show_option, 1081 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1082 1083 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1084 1085 // Default behavior is to not to show note include stacks. 1086 Opts.ShowNoteIncludeStack = false; 1087 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1088 OPT_fno_diagnostics_show_note_include_stack)) 1089 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1090 Opts.ShowNoteIncludeStack = true; 1091 1092 StringRef ShowOverloads = 1093 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1094 if (ShowOverloads == "best") 1095 Opts.setShowOverloads(Ovl_Best); 1096 else if (ShowOverloads == "all") 1097 Opts.setShowOverloads(Ovl_All); 1098 else { 1099 Success = false; 1100 if (Diags) 1101 Diags->Report(diag::err_drv_invalid_value) 1102 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1103 << ShowOverloads; 1104 } 1105 1106 StringRef ShowCategory = 1107 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1108 if (ShowCategory == "none") 1109 Opts.ShowCategories = 0; 1110 else if (ShowCategory == "id") 1111 Opts.ShowCategories = 1; 1112 else if (ShowCategory == "name") 1113 Opts.ShowCategories = 2; 1114 else { 1115 Success = false; 1116 if (Diags) 1117 Diags->Report(diag::err_drv_invalid_value) 1118 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1119 << ShowCategory; 1120 } 1121 1122 StringRef Format = 1123 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1124 if (Format == "clang") 1125 Opts.setFormat(DiagnosticOptions::Clang); 1126 else if (Format == "msvc") 1127 Opts.setFormat(DiagnosticOptions::MSVC); 1128 else if (Format == "msvc-fallback") { 1129 Opts.setFormat(DiagnosticOptions::MSVC); 1130 Opts.CLFallbackMode = true; 1131 } else if (Format == "vi") 1132 Opts.setFormat(DiagnosticOptions::Vi); 1133 else { 1134 Success = false; 1135 if (Diags) 1136 Diags->Report(diag::err_drv_invalid_value) 1137 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1138 << Format; 1139 } 1140 1141 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1142 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1143 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1144 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1145 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1146 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1147 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1148 Diags, DiagMask); 1149 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1150 DiagMask = DiagnosticLevelMask::All; 1151 Opts.setVerifyIgnoreUnexpected(DiagMask); 1152 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1153 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1154 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1155 Opts.MacroBacktraceLimit = 1156 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1157 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1158 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1159 Args, OPT_ftemplate_backtrace_limit, 1160 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1161 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1162 Args, OPT_fconstexpr_backtrace_limit, 1163 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1164 Opts.SpellCheckingLimit = getLastArgIntValue( 1165 Args, OPT_fspell_checking_limit, 1166 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1167 Opts.SnippetLineLimit = getLastArgIntValue( 1168 Args, OPT_fcaret_diagnostics_max_lines, 1169 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1170 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1171 DiagnosticOptions::DefaultTabStop, Diags); 1172 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1173 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1174 if (Diags) 1175 Diags->Report(diag::warn_ignoring_ftabstop_value) 1176 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1177 } 1178 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1179 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1180 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1181 1182 return Success; 1183 } 1184 1185 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1186 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1187 } 1188 1189 /// Parse the argument to the -ftest-module-file-extension 1190 /// command-line argument. 1191 /// 1192 /// \returns true on error, false on success. 1193 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1194 std::string &BlockName, 1195 unsigned &MajorVersion, 1196 unsigned &MinorVersion, 1197 bool &Hashed, 1198 std::string &UserInfo) { 1199 SmallVector<StringRef, 5> Args; 1200 Arg.split(Args, ':', 5); 1201 if (Args.size() < 5) 1202 return true; 1203 1204 BlockName = Args[0]; 1205 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1206 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1207 if (Args[3].getAsInteger(2, Hashed)) return true; 1208 if (Args.size() > 4) 1209 UserInfo = Args[4]; 1210 return false; 1211 } 1212 1213 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1214 DiagnosticsEngine &Diags, 1215 bool &IsHeaderFile) { 1216 using namespace options; 1217 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1218 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1219 switch (A->getOption().getID()) { 1220 default: 1221 llvm_unreachable("Invalid option in group!"); 1222 case OPT_ast_list: 1223 Opts.ProgramAction = frontend::ASTDeclList; break; 1224 case OPT_ast_dump: 1225 case OPT_ast_dump_all: 1226 case OPT_ast_dump_lookups: 1227 Opts.ProgramAction = frontend::ASTDump; break; 1228 case OPT_ast_print: 1229 Opts.ProgramAction = frontend::ASTPrint; break; 1230 case OPT_ast_view: 1231 Opts.ProgramAction = frontend::ASTView; break; 1232 case OPT_dump_raw_tokens: 1233 Opts.ProgramAction = frontend::DumpRawTokens; break; 1234 case OPT_dump_tokens: 1235 Opts.ProgramAction = frontend::DumpTokens; break; 1236 case OPT_S: 1237 Opts.ProgramAction = frontend::EmitAssembly; break; 1238 case OPT_emit_llvm_bc: 1239 Opts.ProgramAction = frontend::EmitBC; break; 1240 case OPT_emit_html: 1241 Opts.ProgramAction = frontend::EmitHTML; break; 1242 case OPT_emit_llvm: 1243 Opts.ProgramAction = frontend::EmitLLVM; break; 1244 case OPT_emit_llvm_only: 1245 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1246 case OPT_emit_codegen_only: 1247 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1248 case OPT_emit_obj: 1249 Opts.ProgramAction = frontend::EmitObj; break; 1250 case OPT_fixit_EQ: 1251 Opts.FixItSuffix = A->getValue(); 1252 // fall-through! 1253 case OPT_fixit: 1254 Opts.ProgramAction = frontend::FixIt; break; 1255 case OPT_emit_module: 1256 Opts.ProgramAction = frontend::GenerateModule; break; 1257 case OPT_emit_module_interface: 1258 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1259 case OPT_emit_pch: 1260 Opts.ProgramAction = frontend::GeneratePCH; break; 1261 case OPT_emit_pth: 1262 Opts.ProgramAction = frontend::GeneratePTH; break; 1263 case OPT_init_only: 1264 Opts.ProgramAction = frontend::InitOnly; break; 1265 case OPT_fsyntax_only: 1266 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1267 case OPT_module_file_info: 1268 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1269 case OPT_verify_pch: 1270 Opts.ProgramAction = frontend::VerifyPCH; break; 1271 case OPT_print_decl_contexts: 1272 Opts.ProgramAction = frontend::PrintDeclContext; break; 1273 case OPT_print_preamble: 1274 Opts.ProgramAction = frontend::PrintPreamble; break; 1275 case OPT_E: 1276 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1277 case OPT_rewrite_macros: 1278 Opts.ProgramAction = frontend::RewriteMacros; break; 1279 case OPT_rewrite_objc: 1280 Opts.ProgramAction = frontend::RewriteObjC; break; 1281 case OPT_rewrite_test: 1282 Opts.ProgramAction = frontend::RewriteTest; break; 1283 case OPT_analyze: 1284 Opts.ProgramAction = frontend::RunAnalysis; break; 1285 case OPT_migrate: 1286 Opts.ProgramAction = frontend::MigrateSource; break; 1287 case OPT_Eonly: 1288 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1289 } 1290 } 1291 1292 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1293 Opts.Plugins.emplace_back(A->getValue(0)); 1294 Opts.ProgramAction = frontend::PluginAction; 1295 Opts.ActionName = A->getValue(); 1296 } 1297 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1298 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1299 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1300 1301 for (const std::string &Arg : 1302 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1303 std::string BlockName; 1304 unsigned MajorVersion; 1305 unsigned MinorVersion; 1306 bool Hashed; 1307 std::string UserInfo; 1308 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1309 MinorVersion, Hashed, UserInfo)) { 1310 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1311 1312 continue; 1313 } 1314 1315 // Add the testing module file extension. 1316 Opts.ModuleFileExtensions.push_back( 1317 std::make_shared<TestModuleFileExtension>( 1318 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1319 } 1320 1321 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1322 Opts.CodeCompletionAt = 1323 ParsedSourceLocation::FromString(A->getValue()); 1324 if (Opts.CodeCompletionAt.FileName.empty()) 1325 Diags.Report(diag::err_drv_invalid_value) 1326 << A->getAsString(Args) << A->getValue(); 1327 } 1328 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1329 1330 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1331 Opts.Plugins = Args.getAllArgValues(OPT_load); 1332 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1333 Opts.ShowHelp = Args.hasArg(OPT_help); 1334 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1335 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1336 Opts.ShowVersion = Args.hasArg(OPT_version); 1337 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1338 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1339 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1340 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1341 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1342 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1343 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1344 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1345 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1346 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1347 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1348 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1349 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1350 // Only the -fmodule-file=<file> form. 1351 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1352 StringRef Val = A->getValue(); 1353 if (Val.find('=') == StringRef::npos) 1354 Opts.ModuleFiles.push_back(Val); 1355 } 1356 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1357 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1358 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1359 1360 Opts.CodeCompleteOpts.IncludeMacros 1361 = Args.hasArg(OPT_code_completion_macros); 1362 Opts.CodeCompleteOpts.IncludeCodePatterns 1363 = Args.hasArg(OPT_code_completion_patterns); 1364 Opts.CodeCompleteOpts.IncludeGlobals 1365 = !Args.hasArg(OPT_no_code_completion_globals); 1366 Opts.CodeCompleteOpts.IncludeBriefComments 1367 = Args.hasArg(OPT_code_completion_brief_comments); 1368 1369 Opts.OverrideRecordLayoutsFile 1370 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1371 Opts.AuxTriple = 1372 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1373 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1374 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1375 1376 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1377 OPT_arcmt_modify, 1378 OPT_arcmt_migrate)) { 1379 switch (A->getOption().getID()) { 1380 default: 1381 llvm_unreachable("missed a case"); 1382 case OPT_arcmt_check: 1383 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1384 break; 1385 case OPT_arcmt_modify: 1386 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1387 break; 1388 case OPT_arcmt_migrate: 1389 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1390 break; 1391 } 1392 } 1393 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1394 Opts.ARCMTMigrateReportOut 1395 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1396 Opts.ARCMTMigrateEmitARCErrors 1397 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1398 1399 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1400 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1401 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1402 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1403 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1404 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1405 if (Args.hasArg(OPT_objcmt_migrate_property)) 1406 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1407 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1408 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1409 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1410 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1411 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1412 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1413 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1414 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1415 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1416 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1417 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1418 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1419 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1420 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1421 if (Args.hasArg(OPT_objcmt_atomic_property)) 1422 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1423 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1424 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1425 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1426 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1427 if (Args.hasArg(OPT_objcmt_migrate_all)) 1428 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1429 1430 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1431 1432 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1433 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1434 Diags.Report(diag::err_drv_argument_not_allowed_with) 1435 << "ARC migration" << "ObjC migration"; 1436 } 1437 1438 InputKind DashX(InputKind::Unknown); 1439 if (const Arg *A = Args.getLastArg(OPT_x)) { 1440 StringRef XValue = A->getValue(); 1441 1442 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1443 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1444 bool Preprocessed = XValue.consume_back("-cpp-output"); 1445 bool ModuleMap = XValue.consume_back("-module-map"); 1446 IsHeaderFile = 1447 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1448 1449 // Principal languages. 1450 DashX = llvm::StringSwitch<InputKind>(XValue) 1451 .Case("c", InputKind::C) 1452 .Case("cl", InputKind::OpenCL) 1453 .Case("cuda", InputKind::CUDA) 1454 .Case("c++", InputKind::CXX) 1455 .Case("objective-c", InputKind::ObjC) 1456 .Case("objective-c++", InputKind::ObjCXX) 1457 .Case("renderscript", InputKind::RenderScript) 1458 .Default(InputKind::Unknown); 1459 1460 // "objc[++]-cpp-output" is an acceptable synonym for 1461 // "objective-c[++]-cpp-output". 1462 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1463 DashX = llvm::StringSwitch<InputKind>(XValue) 1464 .Case("objc", InputKind::ObjC) 1465 .Case("objc++", InputKind::ObjCXX) 1466 .Default(InputKind::Unknown); 1467 1468 // Some special cases cannot be combined with suffixes. 1469 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1470 DashX = llvm::StringSwitch<InputKind>(XValue) 1471 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1472 .Case("assembler-with-cpp", InputKind::Asm) 1473 .Cases("ast", "pcm", 1474 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1475 .Case("ir", InputKind::LLVM_IR) 1476 .Default(InputKind::Unknown); 1477 1478 if (DashX.isUnknown()) 1479 Diags.Report(diag::err_drv_invalid_value) 1480 << A->getAsString(Args) << A->getValue(); 1481 1482 if (Preprocessed) 1483 DashX = DashX.getPreprocessed(); 1484 if (ModuleMap) 1485 DashX = DashX.withFormat(InputKind::ModuleMap); 1486 } 1487 1488 // '-' is the default input if none is given. 1489 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1490 Opts.Inputs.clear(); 1491 if (Inputs.empty()) 1492 Inputs.push_back("-"); 1493 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1494 InputKind IK = DashX; 1495 if (IK.isUnknown()) { 1496 IK = FrontendOptions::getInputKindForExtension( 1497 StringRef(Inputs[i]).rsplit('.').second); 1498 // FIXME: Warn on this? 1499 if (IK.isUnknown()) 1500 IK = InputKind::C; 1501 // FIXME: Remove this hack. 1502 if (i == 0) 1503 DashX = IK; 1504 } 1505 1506 // The -emit-module action implicitly takes a module map. 1507 if (Opts.ProgramAction == frontend::GenerateModule && 1508 IK.getFormat() == InputKind::Source) 1509 IK = IK.withFormat(InputKind::ModuleMap); 1510 1511 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1512 } 1513 1514 return DashX; 1515 } 1516 1517 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1518 void *MainAddr) { 1519 std::string ClangExecutable = 1520 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1521 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1522 1523 // Compute the path to the resource directory. 1524 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1525 SmallString<128> P(Dir); 1526 if (ClangResourceDir != "") 1527 llvm::sys::path::append(P, ClangResourceDir); 1528 else 1529 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1530 "clang", CLANG_VERSION_STRING); 1531 1532 return P.str(); 1533 } 1534 1535 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1536 const std::string &WorkingDir) { 1537 using namespace options; 1538 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1539 Opts.Verbose = Args.hasArg(OPT_v); 1540 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1541 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1542 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1543 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1544 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1545 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1546 1547 // Canonicalize -fmodules-cache-path before storing it. 1548 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1549 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1550 if (WorkingDir.empty()) 1551 llvm::sys::fs::make_absolute(P); 1552 else 1553 llvm::sys::fs::make_absolute(WorkingDir, P); 1554 } 1555 llvm::sys::path::remove_dots(P); 1556 Opts.ModuleCachePath = P.str(); 1557 1558 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1559 // Only the -fmodule-file=<name>=<file> form. 1560 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1561 StringRef Val = A->getValue(); 1562 if (Val.find('=') != StringRef::npos) 1563 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1564 } 1565 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1566 Opts.AddPrebuiltModulePath(A->getValue()); 1567 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1568 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1569 Opts.ModulesValidateDiagnosticOptions = 1570 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1571 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1572 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1573 Opts.ModuleCachePruneInterval = 1574 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1575 Opts.ModuleCachePruneAfter = 1576 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1577 Opts.ModulesValidateOncePerBuildSession = 1578 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1579 Opts.BuildSessionTimestamp = 1580 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1581 Opts.ModulesValidateSystemHeaders = 1582 Args.hasArg(OPT_fmodules_validate_system_headers); 1583 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1584 Opts.ModuleFormat = A->getValue(); 1585 1586 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1587 StringRef MacroDef = A->getValue(); 1588 Opts.ModulesIgnoreMacros.insert( 1589 llvm::CachedHashString(MacroDef.split('=').first)); 1590 } 1591 1592 // Add -I..., -F..., and -index-header-map options in order. 1593 bool IsIndexHeaderMap = false; 1594 bool IsSysrootSpecified = 1595 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1596 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1597 if (A->getOption().matches(OPT_index_header_map)) { 1598 // -index-header-map applies to the next -I or -F. 1599 IsIndexHeaderMap = true; 1600 continue; 1601 } 1602 1603 frontend::IncludeDirGroup Group = 1604 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1605 1606 bool IsFramework = A->getOption().matches(OPT_F); 1607 std::string Path = A->getValue(); 1608 1609 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1610 SmallString<32> Buffer; 1611 llvm::sys::path::append(Buffer, Opts.Sysroot, 1612 llvm::StringRef(A->getValue()).substr(1)); 1613 Path = Buffer.str(); 1614 } 1615 1616 Opts.AddPath(Path, Group, IsFramework, 1617 /*IgnoreSysroot*/ true); 1618 IsIndexHeaderMap = false; 1619 } 1620 1621 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1622 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1623 for (const Arg *A : 1624 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1625 if (A->getOption().matches(OPT_iprefix)) 1626 Prefix = A->getValue(); 1627 else if (A->getOption().matches(OPT_iwithprefix)) 1628 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1629 else 1630 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1631 } 1632 1633 for (const Arg *A : Args.filtered(OPT_idirafter)) 1634 Opts.AddPath(A->getValue(), frontend::After, false, true); 1635 for (const Arg *A : Args.filtered(OPT_iquote)) 1636 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1637 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1638 Opts.AddPath(A->getValue(), frontend::System, false, 1639 !A->getOption().matches(OPT_iwithsysroot)); 1640 for (const Arg *A : Args.filtered(OPT_iframework)) 1641 Opts.AddPath(A->getValue(), frontend::System, true, true); 1642 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot)) 1643 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1644 /*IgnoreSysRoot=*/false); 1645 1646 // Add the paths for the various language specific isystem flags. 1647 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1648 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1649 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1650 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1651 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1652 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1653 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1654 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1655 1656 // Add the internal paths from a driver that detects standard include paths. 1657 for (const Arg *A : 1658 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1659 frontend::IncludeDirGroup Group = frontend::System; 1660 if (A->getOption().matches(OPT_internal_externc_isystem)) 1661 Group = frontend::ExternCSystem; 1662 Opts.AddPath(A->getValue(), Group, false, true); 1663 } 1664 1665 // Add the path prefixes which are implicitly treated as being system headers. 1666 for (const Arg *A : 1667 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1668 Opts.AddSystemHeaderPrefix( 1669 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1670 1671 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1672 Opts.AddVFSOverlayFile(A->getValue()); 1673 } 1674 1675 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1676 const llvm::Triple &T, 1677 PreprocessorOptions &PPOpts, 1678 LangStandard::Kind LangStd) { 1679 // Set some properties which depend solely on the input kind; it would be nice 1680 // to move these to the language standard, and have the driver resolve the 1681 // input kind + language standard. 1682 // 1683 // FIXME: Perhaps a better model would be for a single source file to have 1684 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 1685 // simultaneously active? 1686 if (IK.getLanguage() == InputKind::Asm) { 1687 Opts.AsmPreprocessor = 1; 1688 } else if (IK.isObjectiveC()) { 1689 Opts.ObjC1 = Opts.ObjC2 = 1; 1690 } 1691 1692 if (LangStd == LangStandard::lang_unspecified) { 1693 // Based on the base language, pick one. 1694 switch (IK.getLanguage()) { 1695 case InputKind::Unknown: 1696 case InputKind::LLVM_IR: 1697 llvm_unreachable("Invalid input kind!"); 1698 case InputKind::OpenCL: 1699 LangStd = LangStandard::lang_opencl10; 1700 break; 1701 case InputKind::CUDA: 1702 LangStd = LangStandard::lang_cuda; 1703 break; 1704 case InputKind::Asm: 1705 case InputKind::C: 1706 // The PS4 uses C99 as the default C standard. 1707 if (T.isPS4()) 1708 LangStd = LangStandard::lang_gnu99; 1709 else 1710 LangStd = LangStandard::lang_gnu11; 1711 break; 1712 case InputKind::ObjC: 1713 LangStd = LangStandard::lang_gnu11; 1714 break; 1715 case InputKind::CXX: 1716 case InputKind::ObjCXX: 1717 // The PS4 uses C++11 as the default C++ standard. 1718 if (T.isPS4()) 1719 LangStd = LangStandard::lang_gnucxx11; 1720 else 1721 LangStd = LangStandard::lang_gnucxx98; 1722 break; 1723 case InputKind::RenderScript: 1724 LangStd = LangStandard::lang_c99; 1725 break; 1726 } 1727 } 1728 1729 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1730 Opts.LineComment = Std.hasLineComments(); 1731 Opts.C99 = Std.isC99(); 1732 Opts.C11 = Std.isC11(); 1733 Opts.CPlusPlus = Std.isCPlusPlus(); 1734 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1735 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1736 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1737 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 1738 Opts.Digraphs = Std.hasDigraphs(); 1739 Opts.GNUMode = Std.isGNUMode(); 1740 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 1741 Opts.HexFloats = Std.hasHexFloats(); 1742 Opts.ImplicitInt = Std.hasImplicitInt(); 1743 1744 // Set OpenCL Version. 1745 Opts.OpenCL = Std.isOpenCL(); 1746 if (LangStd == LangStandard::lang_opencl10) 1747 Opts.OpenCLVersion = 100; 1748 else if (LangStd == LangStandard::lang_opencl11) 1749 Opts.OpenCLVersion = 110; 1750 else if (LangStd == LangStandard::lang_opencl12) 1751 Opts.OpenCLVersion = 120; 1752 else if (LangStd == LangStandard::lang_opencl20) 1753 Opts.OpenCLVersion = 200; 1754 1755 // OpenCL has some additional defaults. 1756 if (Opts.OpenCL) { 1757 Opts.AltiVec = 0; 1758 Opts.ZVector = 0; 1759 Opts.LaxVectorConversions = 0; 1760 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 1761 Opts.NativeHalfType = 1; 1762 Opts.NativeHalfArgsAndReturns = 1; 1763 // Include default header file for OpenCL. 1764 if (Opts.IncludeDefaultHeader) { 1765 PPOpts.Includes.push_back("opencl-c.h"); 1766 } 1767 } 1768 1769 Opts.CUDA = IK.getLanguage() == InputKind::CUDA; 1770 if (Opts.CUDA) 1771 // Set default FP_CONTRACT to FAST. 1772 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 1773 1774 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 1775 if (Opts.RenderScript) { 1776 Opts.NativeHalfType = 1; 1777 Opts.NativeHalfArgsAndReturns = 1; 1778 } 1779 1780 // OpenCL and C++ both have bool, true, false keywords. 1781 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1782 1783 // OpenCL has half keyword 1784 Opts.Half = Opts.OpenCL; 1785 1786 // C++ has wchar_t keyword. 1787 Opts.WChar = Opts.CPlusPlus; 1788 1789 Opts.GNUKeywords = Opts.GNUMode; 1790 Opts.CXXOperatorNames = Opts.CPlusPlus; 1791 1792 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1793 1794 Opts.DollarIdents = !Opts.AsmPreprocessor; 1795 } 1796 1797 /// Attempt to parse a visibility value out of the given argument. 1798 static Visibility parseVisibility(Arg *arg, ArgList &args, 1799 DiagnosticsEngine &diags) { 1800 StringRef value = arg->getValue(); 1801 if (value == "default") { 1802 return DefaultVisibility; 1803 } else if (value == "hidden" || value == "internal") { 1804 return HiddenVisibility; 1805 } else if (value == "protected") { 1806 // FIXME: diagnose if target does not support protected visibility 1807 return ProtectedVisibility; 1808 } 1809 1810 diags.Report(diag::err_drv_invalid_value) 1811 << arg->getAsString(args) << value; 1812 return DefaultVisibility; 1813 } 1814 1815 /// Check if input file kind and language standard are compatible. 1816 static bool IsInputCompatibleWithStandard(InputKind IK, 1817 const LangStandard &S) { 1818 switch (IK.getLanguage()) { 1819 case InputKind::Unknown: 1820 case InputKind::LLVM_IR: 1821 llvm_unreachable("should not parse language flags for this input"); 1822 1823 case InputKind::C: 1824 case InputKind::ObjC: 1825 case InputKind::RenderScript: 1826 return S.getLanguage() == InputKind::C; 1827 1828 case InputKind::OpenCL: 1829 return S.getLanguage() == InputKind::OpenCL; 1830 1831 case InputKind::CXX: 1832 case InputKind::ObjCXX: 1833 return S.getLanguage() == InputKind::CXX; 1834 1835 case InputKind::CUDA: 1836 // FIXME: What -std= values should be permitted for CUDA compilations? 1837 return S.getLanguage() == InputKind::CUDA || 1838 S.getLanguage() == InputKind::CXX; 1839 1840 case InputKind::Asm: 1841 // Accept (and ignore) all -std= values. 1842 // FIXME: The -std= value is not ignored; it affects the tokenization 1843 // and preprocessing rules if we're preprocessing this asm input. 1844 return true; 1845 } 1846 1847 llvm_unreachable("unexpected input language"); 1848 } 1849 1850 /// Get language name for given input kind. 1851 static const StringRef GetInputKindName(InputKind IK) { 1852 switch (IK.getLanguage()) { 1853 case InputKind::C: 1854 return "C"; 1855 case InputKind::ObjC: 1856 return "Objective-C"; 1857 case InputKind::CXX: 1858 return "C++"; 1859 case InputKind::ObjCXX: 1860 return "Objective-C++"; 1861 case InputKind::OpenCL: 1862 return "OpenCL"; 1863 case InputKind::CUDA: 1864 return "CUDA"; 1865 case InputKind::RenderScript: 1866 return "RenderScript"; 1867 1868 case InputKind::Asm: 1869 return "Asm"; 1870 case InputKind::LLVM_IR: 1871 return "LLVM IR"; 1872 1873 case InputKind::Unknown: 1874 break; 1875 } 1876 llvm_unreachable("unknown input language"); 1877 } 1878 1879 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1880 const TargetOptions &TargetOpts, 1881 PreprocessorOptions &PPOpts, 1882 DiagnosticsEngine &Diags) { 1883 // FIXME: Cleanup per-file based stuff. 1884 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1885 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1886 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1887 #define LANGSTANDARD(id, name, lang, desc, features) \ 1888 .Case(name, LangStandard::lang_##id) 1889 #define LANGSTANDARD_ALIAS(id, alias) \ 1890 .Case(alias, LangStandard::lang_##id) 1891 #include "clang/Frontend/LangStandards.def" 1892 .Default(LangStandard::lang_unspecified); 1893 if (LangStd == LangStandard::lang_unspecified) { 1894 Diags.Report(diag::err_drv_invalid_value) 1895 << A->getAsString(Args) << A->getValue(); 1896 // Report supported standards with short description. 1897 for (unsigned KindValue = 0; 1898 KindValue != LangStandard::lang_unspecified; 1899 ++KindValue) { 1900 const LangStandard &Std = LangStandard::getLangStandardForKind( 1901 static_cast<LangStandard::Kind>(KindValue)); 1902 if (IsInputCompatibleWithStandard(IK, Std)) { 1903 auto Diag = Diags.Report(diag::note_drv_use_standard); 1904 Diag << Std.getName() << Std.getDescription(); 1905 unsigned NumAliases = 0; 1906 #define LANGSTANDARD(id, name, lang, desc, features) 1907 #define LANGSTANDARD_ALIAS(id, alias) \ 1908 if (KindValue == LangStandard::lang_##id) ++NumAliases; 1909 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1910 #include "clang/Frontend/LangStandards.def" 1911 Diag << NumAliases; 1912 #define LANGSTANDARD(id, name, lang, desc, features) 1913 #define LANGSTANDARD_ALIAS(id, alias) \ 1914 if (KindValue == LangStandard::lang_##id) Diag << alias; 1915 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1916 #include "clang/Frontend/LangStandards.def" 1917 } 1918 } 1919 } else { 1920 // Valid standard, check to make sure language and standard are 1921 // compatible. 1922 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1923 if (!IsInputCompatibleWithStandard(IK, Std)) { 1924 Diags.Report(diag::err_drv_argument_not_allowed_with) 1925 << A->getAsString(Args) << GetInputKindName(IK); 1926 } 1927 } 1928 } 1929 1930 // -cl-std only applies for OpenCL language standards. 1931 // Override the -std option in this case. 1932 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1933 LangStandard::Kind OpenCLLangStd 1934 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1935 .Cases("cl", "CL", LangStandard::lang_opencl10) 1936 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1937 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1938 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1939 .Default(LangStandard::lang_unspecified); 1940 1941 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1942 Diags.Report(diag::err_drv_invalid_value) 1943 << A->getAsString(Args) << A->getValue(); 1944 } 1945 else 1946 LangStd = OpenCLLangStd; 1947 } 1948 1949 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1950 1951 llvm::Triple T(TargetOpts.Triple); 1952 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1953 1954 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1955 // This option should be deprecated for CL > 1.0 because 1956 // this option was added for compatibility with OpenCL 1.0. 1957 if (Args.getLastArg(OPT_cl_strict_aliasing) 1958 && Opts.OpenCLVersion > 100) { 1959 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1960 std::string(".") + 1961 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1962 Diags.Report(diag::warn_option_invalid_ocl_version) 1963 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1964 } 1965 1966 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1967 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1968 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1969 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1970 // name, as it doesn't seem a useful distinction. 1971 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1972 Opts.GNUKeywords); 1973 1974 if (Args.hasArg(OPT_fno_operator_names)) 1975 Opts.CXXOperatorNames = 0; 1976 1977 if (Args.hasArg(OPT_fcuda_is_device)) 1978 Opts.CUDAIsDevice = 1; 1979 1980 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1981 Opts.CUDAAllowVariadicFunctions = 1; 1982 1983 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1984 Opts.CUDAHostDeviceConstexpr = 0; 1985 1986 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1987 Opts.CUDADeviceFlushDenormalsToZero = 1; 1988 1989 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1990 Opts.CUDADeviceApproxTranscendentals = 1; 1991 1992 if (Opts.ObjC1) { 1993 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1994 StringRef value = arg->getValue(); 1995 if (Opts.ObjCRuntime.tryParse(value)) 1996 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1997 } 1998 1999 if (Args.hasArg(OPT_fobjc_gc_only)) 2000 Opts.setGC(LangOptions::GCOnly); 2001 else if (Args.hasArg(OPT_fobjc_gc)) 2002 Opts.setGC(LangOptions::HybridGC); 2003 else if (Args.hasArg(OPT_fobjc_arc)) { 2004 Opts.ObjCAutoRefCount = 1; 2005 if (!Opts.ObjCRuntime.allowsARC()) 2006 Diags.Report(diag::err_arc_unsupported_on_runtime); 2007 } 2008 2009 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2010 // whether the feature is actually enabled. This is predominantly 2011 // determined by -fobjc-runtime, but we allow it to be overridden 2012 // from the command line for testing purposes. 2013 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2014 Opts.ObjCWeakRuntime = 1; 2015 else 2016 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2017 2018 // ObjCWeak determines whether __weak is actually enabled. 2019 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2020 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2021 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2022 assert(!Opts.ObjCWeak); 2023 } else if (Opts.getGC() != LangOptions::NonGC) { 2024 Diags.Report(diag::err_objc_weak_with_gc); 2025 } else if (!Opts.ObjCWeakRuntime) { 2026 Diags.Report(diag::err_objc_weak_unsupported); 2027 } else { 2028 Opts.ObjCWeak = 1; 2029 } 2030 } else if (Opts.ObjCAutoRefCount) { 2031 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2032 } 2033 2034 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2035 Opts.ObjCInferRelatedResultType = 0; 2036 2037 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2038 Opts.ObjCSubscriptingLegacyRuntime = 2039 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2040 } 2041 2042 if (Args.hasArg(OPT_fgnu89_inline)) { 2043 if (Opts.CPlusPlus) 2044 Diags.Report(diag::err_drv_argument_not_allowed_with) 2045 << "-fgnu89-inline" << GetInputKindName(IK); 2046 else 2047 Opts.GNUInline = 1; 2048 } 2049 2050 if (Args.hasArg(OPT_fapple_kext)) { 2051 if (!Opts.CPlusPlus) 2052 Diags.Report(diag::warn_c_kext); 2053 else 2054 Opts.AppleKext = 1; 2055 } 2056 2057 if (Args.hasArg(OPT_print_ivar_layout)) 2058 Opts.ObjCGCBitmapPrint = 1; 2059 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2060 Opts.NoConstantCFStrings = 1; 2061 2062 if (Args.hasArg(OPT_fzvector)) 2063 Opts.ZVector = 1; 2064 2065 if (Args.hasArg(OPT_pthread)) 2066 Opts.POSIXThreads = 1; 2067 2068 // The value-visibility mode defaults to "default". 2069 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2070 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2071 } else { 2072 Opts.setValueVisibilityMode(DefaultVisibility); 2073 } 2074 2075 // The type-visibility mode defaults to the value-visibility mode. 2076 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2077 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2078 } else { 2079 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2080 } 2081 2082 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2083 Opts.InlineVisibilityHidden = 1; 2084 2085 if (Args.hasArg(OPT_ftrapv)) { 2086 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2087 // Set the handler, if one is specified. 2088 Opts.OverflowHandler = 2089 Args.getLastArgValue(OPT_ftrapv_handler); 2090 } 2091 else if (Args.hasArg(OPT_fwrapv)) 2092 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2093 2094 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2095 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2096 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2097 Opts.MSCompatibilityVersion = 0; 2098 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2099 VersionTuple VT; 2100 if (VT.tryParse(A->getValue())) 2101 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2102 << A->getValue(); 2103 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2104 VT.getMinor().getValueOr(0) * 100000 + 2105 VT.getSubminor().getValueOr(0); 2106 } 2107 2108 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 2109 // is specified, or -std is set to a conforming mode. 2110 // Trigraphs are disabled by default in c++1z onwards. 2111 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 2112 Opts.Trigraphs = 2113 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2114 2115 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2116 OPT_fno_dollars_in_identifiers, 2117 Opts.DollarIdents); 2118 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2119 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2120 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2121 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2122 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2123 Opts.ConstStrings); 2124 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2125 Opts.LaxVectorConversions = 0; 2126 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2127 Opts.ThreadsafeStatics = 0; 2128 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2129 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2130 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2131 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 2132 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2133 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2134 2135 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2136 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2137 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2138 && Opts.OpenCLVersion >= 200); 2139 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2140 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2141 2142 // Enable [[]] attributes in C++11 by default. 2143 Opts.DoubleSquareBracketAttributes = 2144 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2145 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11); 2146 2147 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2148 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2149 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2150 Opts.ModulesDeclUse = 2151 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2152 Opts.ModulesLocalVisibility = 2153 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2154 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2155 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2156 Opts.ModulesSearchAll = Opts.Modules && 2157 !Args.hasArg(OPT_fno_modules_search_all) && 2158 Args.hasArg(OPT_fmodules_search_all); 2159 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2160 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2161 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2162 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2163 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2164 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2165 .Case("char", 1) 2166 .Case("short", 2) 2167 .Case("int", 4) 2168 .Default(0); 2169 if (Opts.WCharSize == 0) 2170 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2171 } 2172 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2173 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2174 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2175 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2176 if (!Opts.NoBuiltin) 2177 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2178 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2179 Opts.RelaxedTemplateTemplateArgs = 2180 Args.hasArg(OPT_frelaxed_template_template_args); 2181 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2182 Opts.AlignedAllocation = 2183 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2184 Opts.AlignedAllocation); 2185 Opts.AlignedAllocationUnavailable = 2186 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2187 Opts.NewAlignOverride = 2188 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2189 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2190 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2191 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2192 << A->getValue(); 2193 Opts.NewAlignOverride = 0; 2194 } 2195 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2196 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2197 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2198 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2199 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2200 Opts.InstantiationDepth = 2201 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2202 Opts.ArrowDepth = 2203 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2204 Opts.ConstexprCallDepth = 2205 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2206 Opts.ConstexprStepLimit = 2207 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2208 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2209 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2210 Opts.NumLargeByValueCopy = 2211 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2212 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2213 Opts.ObjCConstantStringClass = 2214 Args.getLastArgValue(OPT_fconstant_string_class); 2215 Opts.ObjCDefaultSynthProperties = 2216 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2217 Opts.EncodeExtendedBlockSig = 2218 Args.hasArg(OPT_fencode_extended_block_signature); 2219 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2220 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2221 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2222 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2223 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2224 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2225 Opts.Static = Args.hasArg(OPT_static_define); 2226 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2227 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2228 || Args.hasArg(OPT_fdump_record_layouts); 2229 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2230 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2231 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2232 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2233 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2234 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2235 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2236 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2237 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2238 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2239 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2240 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2241 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2242 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2243 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2244 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2245 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2246 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2247 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2248 // is enabled. 2249 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2250 | Opts.NativeHalfArgsAndReturns; 2251 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2252 2253 // __declspec is enabled by default for the PS4 by the driver, and also 2254 // enabled for Microsoft Extensions or Borland Extensions, here. 2255 // 2256 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2257 // CUDA extension. However, it is required for supporting 2258 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2259 // been rewritten in terms of something more generic, remove the Opts.CUDA 2260 // term here. 2261 Opts.DeclSpecKeyword = 2262 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2263 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2264 2265 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2266 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2267 .Case("target", LangOptions::ASMM_Target) 2268 .Case("no", LangOptions::ASMM_Off) 2269 .Case("yes", LangOptions::ASMM_On) 2270 .Default(255)) { 2271 default: 2272 Diags.Report(diag::err_drv_invalid_value) 2273 << "-faddress-space-map-mangling=" << A->getValue(); 2274 break; 2275 case LangOptions::ASMM_Target: 2276 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2277 break; 2278 case LangOptions::ASMM_On: 2279 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2280 break; 2281 case LangOptions::ASMM_Off: 2282 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2283 break; 2284 } 2285 } 2286 2287 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2288 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2289 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2290 A->getValue()) 2291 .Case("single", 2292 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2293 .Case("multiple", 2294 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2295 .Case("virtual", 2296 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2297 .Default(LangOptions::PPTMK_BestCase); 2298 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2299 Diags.Report(diag::err_drv_invalid_value) 2300 << "-fms-memptr-rep=" << A->getValue(); 2301 2302 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2303 } 2304 2305 // Check for MS default calling conventions being specified. 2306 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2307 LangOptions::DefaultCallingConvention DefaultCC = 2308 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2309 A->getValue()) 2310 .Case("cdecl", LangOptions::DCC_CDecl) 2311 .Case("fastcall", LangOptions::DCC_FastCall) 2312 .Case("stdcall", LangOptions::DCC_StdCall) 2313 .Case("vectorcall", LangOptions::DCC_VectorCall) 2314 .Default(LangOptions::DCC_None); 2315 if (DefaultCC == LangOptions::DCC_None) 2316 Diags.Report(diag::err_drv_invalid_value) 2317 << "-fdefault-calling-conv=" << A->getValue(); 2318 2319 llvm::Triple T(TargetOpts.Triple); 2320 llvm::Triple::ArchType Arch = T.getArch(); 2321 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2322 DefaultCC == LangOptions::DCC_StdCall) && 2323 Arch != llvm::Triple::x86; 2324 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2325 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2326 if (emitError) 2327 Diags.Report(diag::err_drv_argument_not_allowed_with) 2328 << A->getSpelling() << T.getTriple(); 2329 else 2330 Opts.setDefaultCallingConv(DefaultCC); 2331 } 2332 2333 // -mrtd option 2334 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2335 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2336 Diags.Report(diag::err_drv_argument_not_allowed_with) 2337 << A->getSpelling() << "-fdefault-calling-conv"; 2338 else { 2339 llvm::Triple T(TargetOpts.Triple); 2340 if (T.getArch() != llvm::Triple::x86) 2341 Diags.Report(diag::err_drv_argument_not_allowed_with) 2342 << A->getSpelling() << T.getTriple(); 2343 else 2344 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2345 } 2346 } 2347 2348 // Check if -fopenmp is specified. 2349 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2350 Opts.OpenMPUseTLS = 2351 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2352 Opts.OpenMPIsDevice = 2353 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2354 2355 if (Opts.OpenMP) { 2356 int Version = 2357 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2358 if (Version != 0) 2359 Opts.OpenMP = Version; 2360 // Provide diagnostic when a given target is not expected to be an OpenMP 2361 // device or host. 2362 if (!Opts.OpenMPIsDevice) { 2363 switch (T.getArch()) { 2364 default: 2365 break; 2366 // Add unsupported host targets here: 2367 case llvm::Triple::nvptx: 2368 case llvm::Triple::nvptx64: 2369 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2370 << TargetOpts.Triple; 2371 break; 2372 } 2373 } 2374 } 2375 2376 // Set the flag to prevent the implementation from emitting device exception 2377 // handling code for those requiring so. 2378 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2379 Opts.Exceptions = 0; 2380 Opts.CXXExceptions = 0; 2381 } 2382 2383 // Get the OpenMP target triples if any. 2384 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2385 2386 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2387 llvm::Triple TT(A->getValue(i)); 2388 2389 if (TT.getArch() == llvm::Triple::UnknownArch || 2390 !(TT.getArch() == llvm::Triple::ppc || 2391 TT.getArch() == llvm::Triple::ppc64 || 2392 TT.getArch() == llvm::Triple::ppc64le || 2393 TT.getArch() == llvm::Triple::nvptx || 2394 TT.getArch() == llvm::Triple::nvptx64 || 2395 TT.getArch() == llvm::Triple::x86 || 2396 TT.getArch() == llvm::Triple::x86_64)) 2397 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2398 else 2399 Opts.OMPTargetTriples.push_back(TT); 2400 } 2401 } 2402 2403 // Get OpenMP host file path if any and report if a non existent file is 2404 // found 2405 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2406 Opts.OMPHostIRFile = A->getValue(); 2407 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2408 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2409 << Opts.OMPHostIRFile; 2410 } 2411 2412 // Record whether the __DEPRECATED define was requested. 2413 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2414 OPT_fno_deprecated_macro, 2415 Opts.Deprecated); 2416 2417 // FIXME: Eliminate this dependency. 2418 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2419 OptSize = getOptimizationLevelSize(Args); 2420 Opts.Optimize = Opt != 0; 2421 Opts.OptimizeSize = OptSize != 0; 2422 2423 // This is the __NO_INLINE__ define, which just depends on things like the 2424 // optimization level and -fno-inline, not actually whether the backend has 2425 // inlining enabled. 2426 Opts.NoInlineDefine = !Opts.Optimize; 2427 if (Arg *InlineArg = Args.getLastArg( 2428 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2429 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2430 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2431 Opts.NoInlineDefine = true; 2432 2433 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2434 Args.hasArg(OPT_cl_fast_relaxed_math); 2435 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2436 Args.hasArg(OPT_cl_finite_math_only) || 2437 Args.hasArg(OPT_cl_fast_relaxed_math); 2438 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2439 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2440 Args.hasArg(OPT_cl_fast_relaxed_math); 2441 2442 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2443 StringRef Val = A->getValue(); 2444 if (Val == "fast") 2445 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2446 else if (Val == "on") 2447 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2448 else if (Val == "off") 2449 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2450 else 2451 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2452 } 2453 2454 Opts.RetainCommentsFromSystemHeaders = 2455 Args.hasArg(OPT_fretain_comments_from_system_headers); 2456 2457 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2458 switch (SSP) { 2459 default: 2460 Diags.Report(diag::err_drv_invalid_value) 2461 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2462 break; 2463 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2464 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2465 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2466 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2467 } 2468 2469 // Parse -fsanitize= arguments. 2470 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2471 Diags, Opts.Sanitize); 2472 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2473 Opts.SanitizeAddressFieldPadding = 2474 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2475 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2476 2477 // -fxray-instrument 2478 Opts.XRayInstrument = 2479 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2480 2481 // -fxray-{always,never}-instrument= filenames. 2482 Opts.XRayAlwaysInstrumentFiles = 2483 Args.getAllArgValues(OPT_fxray_always_instrument); 2484 Opts.XRayNeverInstrumentFiles = 2485 Args.getAllArgValues(OPT_fxray_never_instrument); 2486 2487 // -fallow-editor-placeholders 2488 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2489 } 2490 2491 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 2492 switch (Action) { 2493 case frontend::ASTDeclList: 2494 case frontend::ASTDump: 2495 case frontend::ASTPrint: 2496 case frontend::ASTView: 2497 case frontend::EmitAssembly: 2498 case frontend::EmitBC: 2499 case frontend::EmitHTML: 2500 case frontend::EmitLLVM: 2501 case frontend::EmitLLVMOnly: 2502 case frontend::EmitCodeGenOnly: 2503 case frontend::EmitObj: 2504 case frontend::FixIt: 2505 case frontend::GenerateModule: 2506 case frontend::GenerateModuleInterface: 2507 case frontend::GeneratePCH: 2508 case frontend::GeneratePTH: 2509 case frontend::ParseSyntaxOnly: 2510 case frontend::ModuleFileInfo: 2511 case frontend::VerifyPCH: 2512 case frontend::PluginAction: 2513 case frontend::PrintDeclContext: 2514 case frontend::RewriteObjC: 2515 case frontend::RewriteTest: 2516 case frontend::RunAnalysis: 2517 case frontend::MigrateSource: 2518 return false; 2519 2520 case frontend::DumpRawTokens: 2521 case frontend::DumpTokens: 2522 case frontend::InitOnly: 2523 case frontend::PrintPreamble: 2524 case frontend::PrintPreprocessedInput: 2525 case frontend::RewriteMacros: 2526 case frontend::RunPreprocessorOnly: 2527 return true; 2528 } 2529 llvm_unreachable("invalid frontend action"); 2530 } 2531 2532 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2533 FileManager &FileMgr, 2534 DiagnosticsEngine &Diags, 2535 frontend::ActionKind Action) { 2536 using namespace options; 2537 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2538 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2539 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2540 Opts.TokenCache = A->getValue(); 2541 else 2542 Opts.TokenCache = Opts.ImplicitPTHInclude; 2543 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2544 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2545 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2546 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 2547 2548 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2549 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2550 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2551 2552 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2553 StringRef Value(A->getValue()); 2554 size_t Comma = Value.find(','); 2555 unsigned Bytes = 0; 2556 unsigned EndOfLine = 0; 2557 2558 if (Comma == StringRef::npos || 2559 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2560 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2561 Diags.Report(diag::err_drv_preamble_format); 2562 else { 2563 Opts.PrecompiledPreambleBytes.first = Bytes; 2564 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2565 } 2566 } 2567 2568 // Add macros from the command line. 2569 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2570 if (A->getOption().matches(OPT_D)) 2571 Opts.addMacroDef(A->getValue()); 2572 else 2573 Opts.addMacroUndef(A->getValue()); 2574 } 2575 2576 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2577 2578 // Add the ordered list of -includes. 2579 for (const Arg *A : Args.filtered(OPT_include)) 2580 Opts.Includes.emplace_back(A->getValue()); 2581 2582 for (const Arg *A : Args.filtered(OPT_chain_include)) 2583 Opts.ChainedIncludes.emplace_back(A->getValue()); 2584 2585 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2586 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2587 2588 if (Split.second.empty()) { 2589 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2590 continue; 2591 } 2592 2593 Opts.addRemappedFile(Split.first, Split.second); 2594 } 2595 2596 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2597 StringRef Name = A->getValue(); 2598 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2599 .Case("libc++", ARCXX_libcxx) 2600 .Case("libstdc++", ARCXX_libstdcxx) 2601 .Case("none", ARCXX_nolib) 2602 .Default(~0U); 2603 if (Library == ~0U) 2604 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2605 else 2606 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2607 } 2608 2609 // Always avoid lexing editor placeholders when we're just running the 2610 // preprocessor as we never want to emit the 2611 // "editor placeholder in source file" error in PP only mode. 2612 if (isStrictlyPreprocessorAction(Action)) 2613 Opts.LexEditorPlaceholders = false; 2614 } 2615 2616 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2617 ArgList &Args, 2618 frontend::ActionKind Action) { 2619 using namespace options; 2620 2621 if (isStrictlyPreprocessorAction(Action)) 2622 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2623 else 2624 Opts.ShowCPP = 0; 2625 2626 Opts.ShowComments = Args.hasArg(OPT_C); 2627 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2628 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2629 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2630 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2631 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2632 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 2633 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2634 } 2635 2636 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2637 DiagnosticsEngine &Diags) { 2638 using namespace options; 2639 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2640 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2641 StringRef Value = A->getValue(); 2642 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2643 .Case("default", llvm::EABI::Default) 2644 .Case("4", llvm::EABI::EABI4) 2645 .Case("5", llvm::EABI::EABI5) 2646 .Case("gnu", llvm::EABI::GNU) 2647 .Default(llvm::EABI::Unknown); 2648 if (EABIVersion == llvm::EABI::Unknown) 2649 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2650 << Value; 2651 else 2652 Opts.EABIVersion = EABIVersion; 2653 } 2654 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2655 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2656 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2657 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2658 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2659 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2660 // Use the default target triple if unspecified. 2661 if (Opts.Triple.empty()) 2662 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2663 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2664 } 2665 2666 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2667 const char *const *ArgBegin, 2668 const char *const *ArgEnd, 2669 DiagnosticsEngine &Diags) { 2670 bool Success = true; 2671 2672 // Parse the arguments. 2673 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2674 const unsigned IncludedFlagsBitmask = options::CC1Option; 2675 unsigned MissingArgIndex, MissingArgCount; 2676 InputArgList Args = 2677 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2678 MissingArgCount, IncludedFlagsBitmask); 2679 LangOptions &LangOpts = *Res.getLangOpts(); 2680 2681 // Check for missing argument error. 2682 if (MissingArgCount) { 2683 Diags.Report(diag::err_drv_missing_argument) 2684 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2685 Success = false; 2686 } 2687 2688 // Issue errors on unknown arguments. 2689 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2690 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2691 Success = false; 2692 } 2693 2694 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2695 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2696 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2697 Success &= 2698 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2699 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2700 ParseCommentArgs(LangOpts.CommentOpts, Args); 2701 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2702 // FIXME: We shouldn't have to pass the DashX option around here 2703 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2704 LangOpts.IsHeaderFile); 2705 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2706 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2707 Res.getTargetOpts()); 2708 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2709 Res.getFileSystemOpts().WorkingDir); 2710 if (DashX.getFormat() == InputKind::Precompiled || 2711 DashX.getLanguage() == InputKind::LLVM_IR) { 2712 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2713 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2714 // what the input type is. 2715 if (Args.hasArg(OPT_fobjc_arc)) 2716 LangOpts.ObjCAutoRefCount = 1; 2717 // PIClevel and PIELevel are needed during code generation and this should be 2718 // set regardless of the input type. 2719 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2720 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2721 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2722 Diags, LangOpts.Sanitize); 2723 } else { 2724 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2725 // FIXME: Should we really be calling this for an InputKind::Asm input? 2726 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2727 Res.getPreprocessorOpts(), Diags); 2728 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2729 LangOpts.ObjCExceptions = 1; 2730 } 2731 2732 if (LangOpts.CUDA) { 2733 // During CUDA device-side compilation, the aux triple is the 2734 // triple used for host compilation. 2735 if (LangOpts.CUDAIsDevice) 2736 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2737 } 2738 2739 // Set the triple of the host for OpenMP device compile. 2740 if (LangOpts.OpenMPIsDevice) 2741 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2742 2743 // FIXME: Override value name discarding when asan or msan is used because the 2744 // backend passes depend on the name of the alloca in order to print out 2745 // names. 2746 Res.getCodeGenOpts().DiscardValueNames &= 2747 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2748 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2749 2750 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2751 // PCH file and find the original header name. Remove the need to do that in 2752 // ParsePreprocessorArgs and remove the FileManager 2753 // parameters from the function and the "FileManager.h" #include. 2754 FileManager FileMgr(Res.getFileSystemOpts()); 2755 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags, 2756 Res.getFrontendOpts().ProgramAction); 2757 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2758 Res.getFrontendOpts().ProgramAction); 2759 2760 // Turn on -Wspir-compat for SPIR target. 2761 llvm::Triple T(Res.getTargetOpts().Triple); 2762 auto Arch = T.getArch(); 2763 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2764 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2765 } 2766 return Success; 2767 } 2768 2769 std::string CompilerInvocation::getModuleHash() const { 2770 // Note: For QoI reasons, the things we use as a hash here should all be 2771 // dumped via the -module-info flag. 2772 using llvm::hash_code; 2773 using llvm::hash_value; 2774 using llvm::hash_combine; 2775 2776 // Start the signature with the compiler version. 2777 // FIXME: We'd rather use something more cryptographically sound than 2778 // CityHash, but this will do for now. 2779 hash_code code = hash_value(getClangFullRepositoryVersion()); 2780 2781 // Extend the signature with the language options 2782 #define LANGOPT(Name, Bits, Default, Description) \ 2783 code = hash_combine(code, LangOpts->Name); 2784 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2785 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2786 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2787 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2788 #include "clang/Basic/LangOptions.def" 2789 2790 for (StringRef Feature : LangOpts->ModuleFeatures) 2791 code = hash_combine(code, Feature); 2792 2793 // Extend the signature with the target options. 2794 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2795 TargetOpts->ABI); 2796 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2797 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2798 2799 // Extend the signature with preprocessor options. 2800 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2801 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2802 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2803 2804 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2805 I = getPreprocessorOpts().Macros.begin(), 2806 IEnd = getPreprocessorOpts().Macros.end(); 2807 I != IEnd; ++I) { 2808 // If we're supposed to ignore this macro for the purposes of modules, 2809 // don't put it into the hash. 2810 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2811 // Check whether we're ignoring this macro. 2812 StringRef MacroDef = I->first; 2813 if (hsOpts.ModulesIgnoreMacros.count( 2814 llvm::CachedHashString(MacroDef.split('=').first))) 2815 continue; 2816 } 2817 2818 code = hash_combine(code, I->first, I->second); 2819 } 2820 2821 // Extend the signature with the sysroot and other header search options. 2822 code = hash_combine(code, hsOpts.Sysroot, 2823 hsOpts.ModuleFormat, 2824 hsOpts.UseDebugInfo, 2825 hsOpts.UseBuiltinIncludes, 2826 hsOpts.UseStandardSystemIncludes, 2827 hsOpts.UseStandardCXXIncludes, 2828 hsOpts.UseLibcxx, 2829 hsOpts.ModulesValidateDiagnosticOptions); 2830 code = hash_combine(code, hsOpts.ResourceDir); 2831 2832 // Extend the signature with the user build path. 2833 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2834 2835 // Extend the signature with the module file extensions. 2836 const FrontendOptions &frontendOpts = getFrontendOpts(); 2837 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2838 code = ext->hashExtension(code); 2839 } 2840 2841 // Extend the signature with the enabled sanitizers, if at least one is 2842 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 2843 SanitizerSet SanHash = LangOpts->Sanitize; 2844 SanHash.clear(getPPTransparentSanitizers()); 2845 if (!SanHash.empty()) 2846 code = hash_combine(code, SanHash.Mask); 2847 2848 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2849 } 2850 2851 namespace clang { 2852 2853 template<typename IntTy> 2854 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2855 IntTy Default, 2856 DiagnosticsEngine *Diags) { 2857 IntTy Res = Default; 2858 if (Arg *A = Args.getLastArg(Id)) { 2859 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2860 if (Diags) 2861 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2862 << A->getValue(); 2863 } 2864 } 2865 return Res; 2866 } 2867 2868 2869 // Declared in clang/Frontend/Utils.h. 2870 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2871 DiagnosticsEngine *Diags) { 2872 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2873 } 2874 2875 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2876 uint64_t Default, 2877 DiagnosticsEngine *Diags) { 2878 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2879 } 2880 2881 void BuryPointer(const void *Ptr) { 2882 // This function may be called only a small fixed amount of times per each 2883 // invocation, otherwise we do actually have a leak which we want to report. 2884 // If this function is called more than kGraveYardMaxSize times, the pointers 2885 // will not be properly buried and a leak detector will report a leak, which 2886 // is what we want in such case. 2887 static const size_t kGraveYardMaxSize = 16; 2888 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2889 static std::atomic<unsigned> GraveYardSize; 2890 unsigned Idx = GraveYardSize++; 2891 if (Idx >= kGraveYardMaxSize) 2892 return; 2893 GraveYard[Idx] = Ptr; 2894 } 2895 2896 IntrusiveRefCntPtr<vfs::FileSystem> 2897 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2898 DiagnosticsEngine &Diags) { 2899 return createVFSFromCompilerInvocation(CI, Diags, vfs::getRealFileSystem()); 2900 } 2901 2902 IntrusiveRefCntPtr<vfs::FileSystem> 2903 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2904 DiagnosticsEngine &Diags, 2905 IntrusiveRefCntPtr<vfs::FileSystem> BaseFS) { 2906 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2907 return BaseFS; 2908 2909 IntrusiveRefCntPtr<vfs::OverlayFileSystem> Overlay( 2910 new vfs::OverlayFileSystem(BaseFS)); 2911 // earlier vfs files are on the bottom 2912 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2913 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2914 BaseFS->getBufferForFile(File); 2915 if (!Buffer) { 2916 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2917 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2918 } 2919 2920 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2921 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2922 if (!FS.get()) { 2923 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2924 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2925 } 2926 Overlay->pushOverlay(FS); 2927 } 2928 return Overlay; 2929 } 2930 } // end namespace clang 2931