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.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 550 Args.hasArg(OPT_new_struct_path_tbaa); 551 Opts.FineGrainedBitfieldAccesses = 552 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 553 OPT_fno_fine_grained_bitfield_accesses, false); 554 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 555 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 556 Opts.NoCommon = Args.hasArg(OPT_fno_common); 557 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 558 Opts.OptimizeSize = getOptimizationLevelSize(Args); 559 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 560 Args.hasArg(OPT_ffreestanding)); 561 if (Opts.SimplifyLibCalls) 562 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 563 Opts.UnrollLoops = 564 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 565 (Opts.OptimizationLevel > 1)); 566 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 567 568 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 569 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 570 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 571 Opts.DebugInfoForProfiling = Args.hasFlag( 572 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 573 Opts.GnuPubnames = Args.hasArg(OPT_ggnu_pubnames); 574 575 setPGOInstrumentor(Opts, Args, Diags); 576 Opts.InstrProfileOutput = 577 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 578 Opts.ProfileInstrumentUsePath = 579 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 580 if (!Opts.ProfileInstrumentUsePath.empty()) 581 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 582 583 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 584 Opts.setClangABICompat(CodeGenOptions::ClangABI::Latest); 585 586 StringRef Ver = A->getValue(); 587 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 588 unsigned Major, Minor = 0; 589 590 // Check the version number is valid: either 3.x (0 <= x <= 9) or 591 // y or y.0 (4 <= y <= current version). 592 if (!VerParts.first.startswith("0") && 593 !VerParts.first.getAsInteger(10, Major) && 594 3 <= Major && Major <= CLANG_VERSION_MAJOR && 595 (Major == 3 ? VerParts.second.size() == 1 && 596 !VerParts.second.getAsInteger(10, Minor) 597 : VerParts.first.size() == Ver.size() || 598 VerParts.second == "0")) { 599 // Got a valid version number. 600 if (Major == 3 && Minor <= 8) 601 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver3_8); 602 else if (Major <= 4) 603 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver4); 604 } else if (Ver != "latest") { 605 Diags.Report(diag::err_drv_invalid_value) 606 << A->getAsString(Args) << A->getValue(); 607 } 608 } 609 610 Opts.CoverageMapping = 611 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 612 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 613 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 614 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 615 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 616 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 617 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 618 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 619 Opts.CodeModel = getCodeModel(Args, Diags); 620 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 621 Opts.DisableFPElim = 622 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 623 Opts.DisableFree = Args.hasArg(OPT_disable_free); 624 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 625 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 626 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 627 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 628 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 629 Args.hasArg(OPT_cl_fast_relaxed_math); 630 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 631 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 632 Args.hasArg(OPT_cl_finite_math_only) || 633 Args.hasArg(OPT_cl_fast_relaxed_math)); 634 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 635 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 636 Args.hasArg(OPT_cl_finite_math_only) || 637 Args.hasArg(OPT_cl_fast_relaxed_math)); 638 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 639 Args.hasArg(OPT_cl_no_signed_zeros) || 640 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 641 Args.hasArg(OPT_cl_fast_relaxed_math)); 642 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 643 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 644 Opts.CorrectlyRoundedDivSqrt = 645 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 646 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 647 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 648 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 649 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 650 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 651 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 652 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 653 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 654 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 655 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 656 Opts.IncrementalLinkerCompatible = 657 Args.hasArg(OPT_mincremental_linker_compatible); 658 Opts.PIECopyRelocations = 659 Args.hasArg(OPT_mpie_copy_relocations); 660 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 661 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 662 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 663 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 664 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 665 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 666 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 667 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 668 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 669 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 670 Args.hasArg(OPT_cl_fast_relaxed_math); 671 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 672 Opts.RelocationModel = getRelocModel(Args, Diags); 673 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 674 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 675 Diags.Report(diag::err_drv_invalid_value) 676 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 677 << Opts.ThreadModel; 678 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 679 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 680 681 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 682 OPT_fno_function_sections, false); 683 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 684 OPT_fno_data_sections, false); 685 Opts.StackSizeSection = 686 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 687 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 688 OPT_fno_unique_section_names, true); 689 690 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 691 692 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 693 694 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 695 696 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 697 Opts.EmitSummaryIndex = false; 698 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 699 StringRef S = A->getValue(); 700 if (S == "thin") 701 Opts.EmitSummaryIndex = true; 702 else if (S != "full") 703 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 704 } 705 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 706 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 707 if (IK.getLanguage() != InputKind::LLVM_IR) 708 Diags.Report(diag::err_drv_argument_only_allowed_with) 709 << A->getAsString(Args) << "-x ir"; 710 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 711 } 712 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 713 714 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 715 716 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 717 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 718 719 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 720 721 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 722 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 723 724 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 725 726 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 727 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 728 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 729 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 730 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 731 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 732 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 733 Opts.CoverageNoFunctionNamesInData = 734 Args.hasArg(OPT_coverage_no_function_names_in_data); 735 Opts.CoverageExitBlockBeforeBody = 736 Args.hasArg(OPT_coverage_exit_block_before_body); 737 if (Args.hasArg(OPT_coverage_version_EQ)) { 738 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 739 if (CoverageVersion.size() != 4) { 740 Diags.Report(diag::err_drv_invalid_value) 741 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 742 << CoverageVersion; 743 } else { 744 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 745 } 746 } 747 } 748 // Handle -fembed-bitcode option. 749 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 750 StringRef Name = A->getValue(); 751 unsigned Model = llvm::StringSwitch<unsigned>(Name) 752 .Case("off", CodeGenOptions::Embed_Off) 753 .Case("all", CodeGenOptions::Embed_All) 754 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 755 .Case("marker", CodeGenOptions::Embed_Marker) 756 .Default(~0U); 757 if (Model == ~0U) { 758 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 759 Success = false; 760 } else 761 Opts.setEmbedBitcode( 762 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 763 } 764 // FIXME: For backend options that are not yet recorded as function 765 // attributes in the IR, keep track of them so we can embed them in a 766 // separate data section and use them when building the bitcode. 767 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 768 for (const auto &A : Args) { 769 // Do not encode output and input. 770 if (A->getOption().getID() == options::OPT_o || 771 A->getOption().getID() == options::OPT_INPUT || 772 A->getOption().getID() == options::OPT_x || 773 A->getOption().getID() == options::OPT_fembed_bitcode || 774 (A->getOption().getGroup().isValid() && 775 A->getOption().getGroup().getID() == options::OPT_W_Group)) 776 continue; 777 ArgStringList ASL; 778 A->render(Args, ASL); 779 for (const auto &arg : ASL) { 780 StringRef ArgStr(arg); 781 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 782 // using \00 to seperate each commandline options. 783 Opts.CmdArgs.push_back('\0'); 784 } 785 } 786 } 787 788 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 789 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 790 Opts.InstrumentFunctionsAfterInlining = 791 Args.hasArg(OPT_finstrument_functions_after_inlining); 792 Opts.InstrumentFunctionEntryBare = 793 Args.hasArg(OPT_finstrument_function_entry_bare); 794 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 795 Opts.XRayAlwaysEmitCustomEvents = 796 Args.hasArg(OPT_fxray_always_emit_customevents); 797 Opts.XRayInstructionThreshold = 798 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 799 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 800 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 801 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 802 803 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 804 StringRef Name = A->getValue(); 805 if (Name == "full") { 806 Opts.CFProtectionReturn = 1; 807 Opts.CFProtectionBranch = 1; 808 } else if (Name == "return") 809 Opts.CFProtectionReturn = 1; 810 else if (Name == "branch") 811 Opts.CFProtectionBranch = 1; 812 else if (Name != "none") { 813 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 814 Success = false; 815 } 816 } 817 818 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 819 OPT_compress_debug_sections_EQ)) { 820 if (A->getOption().getID() == OPT_compress_debug_sections) { 821 // TODO: be more clever about the compression type auto-detection 822 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 823 } else { 824 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 825 .Case("none", llvm::DebugCompressionType::None) 826 .Case("zlib", llvm::DebugCompressionType::Z) 827 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 828 .Default(llvm::DebugCompressionType::None); 829 Opts.setCompressDebugSections(DCT); 830 } 831 } 832 833 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 834 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 835 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 836 CodeGenOptions::BitcodeFileToLink F; 837 F.Filename = A->getValue(); 838 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) { 839 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 840 // When linking CUDA bitcode, propagate function attributes so that 841 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 842 F.PropagateAttrs = true; 843 F.Internalize = true; 844 } 845 Opts.LinkBitcodeFiles.push_back(F); 846 } 847 Opts.SanitizeCoverageType = 848 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 849 Opts.SanitizeCoverageIndirectCalls = 850 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 851 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 852 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 853 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 854 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 855 Opts.SanitizeCoverage8bitCounters = 856 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 857 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 858 Opts.SanitizeCoverageTracePCGuard = 859 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 860 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 861 Opts.SanitizeCoverageInline8bitCounters = 862 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 863 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 864 Opts.SanitizeCoverageStackDepth = 865 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 866 Opts.SanitizeMemoryTrackOrigins = 867 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 868 Opts.SanitizeMemoryUseAfterDtor = 869 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 870 OPT_fno_sanitize_memory_use_after_dtor, 871 false); 872 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 873 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 874 Opts.SanitizeCfiICallGeneralizePointers = 875 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 876 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 877 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 878 OPT_fno_sanitize_address_use_after_scope)) { 879 Opts.SanitizeAddressUseAfterScope = 880 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 881 } 882 Opts.SanitizeAddressGlobalsDeadStripping = 883 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 884 Opts.SSPBufferSize = 885 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 886 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 887 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 888 StringRef Val = A->getValue(); 889 unsigned StackAlignment = Opts.StackAlignment; 890 Val.getAsInteger(10, StackAlignment); 891 Opts.StackAlignment = StackAlignment; 892 } 893 894 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 895 StringRef Val = A->getValue(); 896 unsigned StackProbeSize = Opts.StackProbeSize; 897 Val.getAsInteger(0, StackProbeSize); 898 Opts.StackProbeSize = StackProbeSize; 899 } 900 901 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 902 StringRef Name = A->getValue(); 903 unsigned Method = llvm::StringSwitch<unsigned>(Name) 904 .Case("legacy", CodeGenOptions::Legacy) 905 .Case("non-legacy", CodeGenOptions::NonLegacy) 906 .Case("mixed", CodeGenOptions::Mixed) 907 .Default(~0U); 908 if (Method == ~0U) { 909 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 910 Success = false; 911 } else { 912 Opts.setObjCDispatchMethod( 913 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 914 } 915 } 916 917 Opts.EmulatedTLS = 918 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 919 920 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 921 StringRef Name = A->getValue(); 922 unsigned Model = llvm::StringSwitch<unsigned>(Name) 923 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 924 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 925 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 926 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 927 .Default(~0U); 928 if (Model == ~0U) { 929 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 930 Success = false; 931 } else { 932 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 933 } 934 } 935 936 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 937 StringRef Val = A->getValue(); 938 if (Val == "ieee") 939 Opts.FPDenormalMode = "ieee"; 940 else if (Val == "preserve-sign") 941 Opts.FPDenormalMode = "preserve-sign"; 942 else if (Val == "positive-zero") 943 Opts.FPDenormalMode = "positive-zero"; 944 else 945 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 946 } 947 948 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 949 if (A->getOption().matches(OPT_fpcc_struct_return)) { 950 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 951 } else { 952 assert(A->getOption().matches(OPT_freg_struct_return)); 953 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 954 } 955 } 956 957 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 958 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 959 bool NeedLocTracking = false; 960 961 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 962 if (!Opts.OptRecordFile.empty()) 963 NeedLocTracking = true; 964 965 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 966 Opts.OptimizationRemarkPattern = 967 GenerateOptimizationRemarkRegex(Diags, Args, A); 968 NeedLocTracking = true; 969 } 970 971 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 972 Opts.OptimizationRemarkMissedPattern = 973 GenerateOptimizationRemarkRegex(Diags, Args, A); 974 NeedLocTracking = true; 975 } 976 977 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 978 Opts.OptimizationRemarkAnalysisPattern = 979 GenerateOptimizationRemarkRegex(Diags, Args, A); 980 NeedLocTracking = true; 981 } 982 983 Opts.DiagnosticsWithHotness = 984 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 985 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 986 bool UsingProfile = UsingSampleProfile || 987 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 988 989 if (Opts.DiagnosticsWithHotness && !UsingProfile) 990 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 991 << "-fdiagnostics-show-hotness"; 992 993 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 994 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 995 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 996 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 997 << "-fdiagnostics-hotness-threshold="; 998 999 // If the user requested to use a sample profile for PGO, then the 1000 // backend will need to track source location information so the profile 1001 // can be incorporated into the IR. 1002 if (UsingSampleProfile) 1003 NeedLocTracking = true; 1004 1005 // If the user requested a flag that requires source locations available in 1006 // the backend, make sure that the backend tracks source location information. 1007 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1008 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1009 1010 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1011 1012 // Parse -fsanitize-recover= arguments. 1013 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1014 parseSanitizerKinds("-fsanitize-recover=", 1015 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1016 Opts.SanitizeRecover); 1017 parseSanitizerKinds("-fsanitize-trap=", 1018 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1019 Opts.SanitizeTrap); 1020 1021 Opts.CudaGpuBinaryFileNames = 1022 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 1023 1024 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1025 1026 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1027 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1028 1029 return Success; 1030 } 1031 1032 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1033 ArgList &Args) { 1034 using namespace options; 1035 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1036 Opts.Targets = Args.getAllArgValues(OPT_MT); 1037 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1038 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1039 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1040 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1041 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1042 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1043 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 1044 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1045 Opts.ModuleDependencyOutputDir = 1046 Args.getLastArgValue(OPT_module_dependency_dir); 1047 if (Args.hasArg(OPT_MV)) 1048 Opts.OutputFormat = DependencyOutputFormat::NMake; 1049 // Add sanitizer blacklists as extra dependencies. 1050 // They won't be discovered by the regular preprocessor, so 1051 // we let make / ninja to know about this implicit dependency. 1052 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1053 // Only the -fmodule-file=<file> form. 1054 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1055 StringRef Val = A->getValue(); 1056 if (Val.find('=') == StringRef::npos) 1057 Opts.ExtraDeps.push_back(Val); 1058 } 1059 } 1060 1061 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1062 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1063 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1064 // Support both clang's -f[no-]color-diagnostics and gcc's 1065 // -f[no-]diagnostics-colors[=never|always|auto]. 1066 enum { 1067 Colors_On, 1068 Colors_Off, 1069 Colors_Auto 1070 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1071 for (Arg *A : Args) { 1072 const Option &O = A->getOption(); 1073 if (O.matches(options::OPT_fcolor_diagnostics) || 1074 O.matches(options::OPT_fdiagnostics_color)) { 1075 ShowColors = Colors_On; 1076 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1077 O.matches(options::OPT_fno_diagnostics_color)) { 1078 ShowColors = Colors_Off; 1079 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1080 StringRef Value(A->getValue()); 1081 if (Value == "always") 1082 ShowColors = Colors_On; 1083 else if (Value == "never") 1084 ShowColors = Colors_Off; 1085 else if (Value == "auto") 1086 ShowColors = Colors_Auto; 1087 } 1088 } 1089 return ShowColors == Colors_On || 1090 (ShowColors == Colors_Auto && 1091 llvm::sys::Process::StandardErrHasColors()); 1092 } 1093 1094 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1095 DiagnosticsEngine *Diags) { 1096 bool Success = true; 1097 for (const auto &Prefix : VerifyPrefixes) { 1098 // Every prefix must start with a letter and contain only alphanumeric 1099 // characters, hyphens, and underscores. 1100 auto BadChar = std::find_if(Prefix.begin(), Prefix.end(), 1101 [](char C){return !isAlphanumeric(C) 1102 && C != '-' && C != '_';}); 1103 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1104 Success = false; 1105 if (Diags) { 1106 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1107 Diags->Report(diag::note_drv_verify_prefix_spelling); 1108 } 1109 } 1110 } 1111 return Success; 1112 } 1113 1114 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1115 DiagnosticsEngine *Diags, 1116 bool DefaultDiagColor, bool DefaultShowOpt) { 1117 using namespace options; 1118 bool Success = true; 1119 1120 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1121 if (Arg *A = 1122 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1123 Opts.DiagnosticSerializationFile = A->getValue(); 1124 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1125 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1126 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1127 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1128 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1129 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1130 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1131 OPT_fno_show_column, 1132 /*Default=*/true); 1133 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1134 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1135 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1136 Opts.ShowOptionNames = 1137 Args.hasFlag(OPT_fdiagnostics_show_option, 1138 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1139 1140 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1141 1142 // Default behavior is to not to show note include stacks. 1143 Opts.ShowNoteIncludeStack = false; 1144 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1145 OPT_fno_diagnostics_show_note_include_stack)) 1146 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1147 Opts.ShowNoteIncludeStack = true; 1148 1149 StringRef ShowOverloads = 1150 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1151 if (ShowOverloads == "best") 1152 Opts.setShowOverloads(Ovl_Best); 1153 else if (ShowOverloads == "all") 1154 Opts.setShowOverloads(Ovl_All); 1155 else { 1156 Success = false; 1157 if (Diags) 1158 Diags->Report(diag::err_drv_invalid_value) 1159 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1160 << ShowOverloads; 1161 } 1162 1163 StringRef ShowCategory = 1164 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1165 if (ShowCategory == "none") 1166 Opts.ShowCategories = 0; 1167 else if (ShowCategory == "id") 1168 Opts.ShowCategories = 1; 1169 else if (ShowCategory == "name") 1170 Opts.ShowCategories = 2; 1171 else { 1172 Success = false; 1173 if (Diags) 1174 Diags->Report(diag::err_drv_invalid_value) 1175 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1176 << ShowCategory; 1177 } 1178 1179 StringRef Format = 1180 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1181 if (Format == "clang") 1182 Opts.setFormat(DiagnosticOptions::Clang); 1183 else if (Format == "msvc") 1184 Opts.setFormat(DiagnosticOptions::MSVC); 1185 else if (Format == "msvc-fallback") { 1186 Opts.setFormat(DiagnosticOptions::MSVC); 1187 Opts.CLFallbackMode = true; 1188 } else if (Format == "vi") 1189 Opts.setFormat(DiagnosticOptions::Vi); 1190 else { 1191 Success = false; 1192 if (Diags) 1193 Diags->Report(diag::err_drv_invalid_value) 1194 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1195 << Format; 1196 } 1197 1198 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1199 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1200 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1201 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1202 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1203 if (Args.hasArg(OPT_verify)) 1204 Opts.VerifyPrefixes.push_back("expected"); 1205 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1206 // then sort it to prepare for fast lookup using std::binary_search. 1207 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1208 Opts.VerifyDiagnostics = false; 1209 Success = false; 1210 } 1211 else 1212 std::sort(Opts.VerifyPrefixes.begin(), Opts.VerifyPrefixes.end()); 1213 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1214 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1215 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1216 Diags, DiagMask); 1217 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1218 DiagMask = DiagnosticLevelMask::All; 1219 Opts.setVerifyIgnoreUnexpected(DiagMask); 1220 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1221 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1222 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1223 Opts.MacroBacktraceLimit = 1224 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1225 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1226 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1227 Args, OPT_ftemplate_backtrace_limit, 1228 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1229 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1230 Args, OPT_fconstexpr_backtrace_limit, 1231 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1232 Opts.SpellCheckingLimit = getLastArgIntValue( 1233 Args, OPT_fspell_checking_limit, 1234 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1235 Opts.SnippetLineLimit = getLastArgIntValue( 1236 Args, OPT_fcaret_diagnostics_max_lines, 1237 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1238 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1239 DiagnosticOptions::DefaultTabStop, Diags); 1240 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1241 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1242 if (Diags) 1243 Diags->Report(diag::warn_ignoring_ftabstop_value) 1244 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1245 } 1246 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1247 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1248 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1249 1250 return Success; 1251 } 1252 1253 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1254 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1255 } 1256 1257 /// Parse the argument to the -ftest-module-file-extension 1258 /// command-line argument. 1259 /// 1260 /// \returns true on error, false on success. 1261 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1262 std::string &BlockName, 1263 unsigned &MajorVersion, 1264 unsigned &MinorVersion, 1265 bool &Hashed, 1266 std::string &UserInfo) { 1267 SmallVector<StringRef, 5> Args; 1268 Arg.split(Args, ':', 5); 1269 if (Args.size() < 5) 1270 return true; 1271 1272 BlockName = Args[0]; 1273 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1274 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1275 if (Args[3].getAsInteger(2, Hashed)) return true; 1276 if (Args.size() > 4) 1277 UserInfo = Args[4]; 1278 return false; 1279 } 1280 1281 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1282 DiagnosticsEngine &Diags, 1283 bool &IsHeaderFile) { 1284 using namespace options; 1285 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1286 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1287 switch (A->getOption().getID()) { 1288 default: 1289 llvm_unreachable("Invalid option in group!"); 1290 case OPT_ast_list: 1291 Opts.ProgramAction = frontend::ASTDeclList; break; 1292 case OPT_ast_dump: 1293 case OPT_ast_dump_all: 1294 case OPT_ast_dump_lookups: 1295 Opts.ProgramAction = frontend::ASTDump; break; 1296 case OPT_ast_print: 1297 Opts.ProgramAction = frontend::ASTPrint; break; 1298 case OPT_ast_view: 1299 Opts.ProgramAction = frontend::ASTView; break; 1300 case OPT_dump_raw_tokens: 1301 Opts.ProgramAction = frontend::DumpRawTokens; break; 1302 case OPT_dump_tokens: 1303 Opts.ProgramAction = frontend::DumpTokens; break; 1304 case OPT_S: 1305 Opts.ProgramAction = frontend::EmitAssembly; break; 1306 case OPT_emit_llvm_bc: 1307 Opts.ProgramAction = frontend::EmitBC; break; 1308 case OPT_emit_html: 1309 Opts.ProgramAction = frontend::EmitHTML; break; 1310 case OPT_emit_llvm: 1311 Opts.ProgramAction = frontend::EmitLLVM; break; 1312 case OPT_emit_llvm_only: 1313 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1314 case OPT_emit_codegen_only: 1315 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1316 case OPT_emit_obj: 1317 Opts.ProgramAction = frontend::EmitObj; break; 1318 case OPT_fixit_EQ: 1319 Opts.FixItSuffix = A->getValue(); 1320 // fall-through! 1321 case OPT_fixit: 1322 Opts.ProgramAction = frontend::FixIt; break; 1323 case OPT_emit_module: 1324 Opts.ProgramAction = frontend::GenerateModule; break; 1325 case OPT_emit_module_interface: 1326 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1327 case OPT_emit_pch: 1328 Opts.ProgramAction = frontend::GeneratePCH; break; 1329 case OPT_emit_pth: 1330 Opts.ProgramAction = frontend::GeneratePTH; break; 1331 case OPT_init_only: 1332 Opts.ProgramAction = frontend::InitOnly; break; 1333 case OPT_fsyntax_only: 1334 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1335 case OPT_module_file_info: 1336 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1337 case OPT_verify_pch: 1338 Opts.ProgramAction = frontend::VerifyPCH; break; 1339 case OPT_print_decl_contexts: 1340 Opts.ProgramAction = frontend::PrintDeclContext; break; 1341 case OPT_print_preamble: 1342 Opts.ProgramAction = frontend::PrintPreamble; break; 1343 case OPT_E: 1344 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1345 case OPT_rewrite_macros: 1346 Opts.ProgramAction = frontend::RewriteMacros; break; 1347 case OPT_rewrite_objc: 1348 Opts.ProgramAction = frontend::RewriteObjC; break; 1349 case OPT_rewrite_test: 1350 Opts.ProgramAction = frontend::RewriteTest; break; 1351 case OPT_analyze: 1352 Opts.ProgramAction = frontend::RunAnalysis; break; 1353 case OPT_migrate: 1354 Opts.ProgramAction = frontend::MigrateSource; break; 1355 case OPT_Eonly: 1356 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1357 } 1358 } 1359 1360 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1361 Opts.Plugins.emplace_back(A->getValue(0)); 1362 Opts.ProgramAction = frontend::PluginAction; 1363 Opts.ActionName = A->getValue(); 1364 } 1365 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1366 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1367 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1368 1369 for (const std::string &Arg : 1370 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1371 std::string BlockName; 1372 unsigned MajorVersion; 1373 unsigned MinorVersion; 1374 bool Hashed; 1375 std::string UserInfo; 1376 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1377 MinorVersion, Hashed, UserInfo)) { 1378 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1379 1380 continue; 1381 } 1382 1383 // Add the testing module file extension. 1384 Opts.ModuleFileExtensions.push_back( 1385 std::make_shared<TestModuleFileExtension>( 1386 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1387 } 1388 1389 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1390 Opts.CodeCompletionAt = 1391 ParsedSourceLocation::FromString(A->getValue()); 1392 if (Opts.CodeCompletionAt.FileName.empty()) 1393 Diags.Report(diag::err_drv_invalid_value) 1394 << A->getAsString(Args) << A->getValue(); 1395 } 1396 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1397 1398 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1399 Opts.Plugins = Args.getAllArgValues(OPT_load); 1400 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1401 Opts.ShowHelp = Args.hasArg(OPT_help); 1402 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1403 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1404 Opts.ShowVersion = Args.hasArg(OPT_version); 1405 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1406 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1407 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1408 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1409 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1410 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1411 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1412 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1413 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1414 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1415 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1416 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1417 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1418 // Only the -fmodule-file=<file> form. 1419 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1420 StringRef Val = A->getValue(); 1421 if (Val.find('=') == StringRef::npos) 1422 Opts.ModuleFiles.push_back(Val); 1423 } 1424 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1425 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1426 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1427 1428 Opts.CodeCompleteOpts.IncludeMacros 1429 = Args.hasArg(OPT_code_completion_macros); 1430 Opts.CodeCompleteOpts.IncludeCodePatterns 1431 = Args.hasArg(OPT_code_completion_patterns); 1432 Opts.CodeCompleteOpts.IncludeGlobals 1433 = !Args.hasArg(OPT_no_code_completion_globals); 1434 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1435 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1436 Opts.CodeCompleteOpts.IncludeBriefComments 1437 = Args.hasArg(OPT_code_completion_brief_comments); 1438 1439 Opts.OverrideRecordLayoutsFile 1440 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1441 Opts.AuxTriple = 1442 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1443 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1444 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1445 1446 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1447 OPT_arcmt_modify, 1448 OPT_arcmt_migrate)) { 1449 switch (A->getOption().getID()) { 1450 default: 1451 llvm_unreachable("missed a case"); 1452 case OPT_arcmt_check: 1453 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1454 break; 1455 case OPT_arcmt_modify: 1456 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1457 break; 1458 case OPT_arcmt_migrate: 1459 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1460 break; 1461 } 1462 } 1463 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1464 Opts.ARCMTMigrateReportOut 1465 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1466 Opts.ARCMTMigrateEmitARCErrors 1467 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1468 1469 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1470 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1471 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1472 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1473 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1474 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1475 if (Args.hasArg(OPT_objcmt_migrate_property)) 1476 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1477 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1478 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1479 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1480 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1481 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1482 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1483 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1484 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1485 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1486 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1487 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1488 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1489 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1490 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1491 if (Args.hasArg(OPT_objcmt_atomic_property)) 1492 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1493 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1494 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1495 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1496 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1497 if (Args.hasArg(OPT_objcmt_migrate_all)) 1498 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1499 1500 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1501 1502 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1503 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1504 Diags.Report(diag::err_drv_argument_not_allowed_with) 1505 << "ARC migration" << "ObjC migration"; 1506 } 1507 1508 InputKind DashX(InputKind::Unknown); 1509 if (const Arg *A = Args.getLastArg(OPT_x)) { 1510 StringRef XValue = A->getValue(); 1511 1512 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1513 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1514 bool Preprocessed = XValue.consume_back("-cpp-output"); 1515 bool ModuleMap = XValue.consume_back("-module-map"); 1516 IsHeaderFile = 1517 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1518 1519 // Principal languages. 1520 DashX = llvm::StringSwitch<InputKind>(XValue) 1521 .Case("c", InputKind::C) 1522 .Case("cl", InputKind::OpenCL) 1523 .Case("cuda", InputKind::CUDA) 1524 .Case("c++", InputKind::CXX) 1525 .Case("objective-c", InputKind::ObjC) 1526 .Case("objective-c++", InputKind::ObjCXX) 1527 .Case("renderscript", InputKind::RenderScript) 1528 .Default(InputKind::Unknown); 1529 1530 // "objc[++]-cpp-output" is an acceptable synonym for 1531 // "objective-c[++]-cpp-output". 1532 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1533 DashX = llvm::StringSwitch<InputKind>(XValue) 1534 .Case("objc", InputKind::ObjC) 1535 .Case("objc++", InputKind::ObjCXX) 1536 .Default(InputKind::Unknown); 1537 1538 // Some special cases cannot be combined with suffixes. 1539 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1540 DashX = llvm::StringSwitch<InputKind>(XValue) 1541 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1542 .Case("assembler-with-cpp", InputKind::Asm) 1543 .Cases("ast", "pcm", 1544 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1545 .Case("ir", InputKind::LLVM_IR) 1546 .Default(InputKind::Unknown); 1547 1548 if (DashX.isUnknown()) 1549 Diags.Report(diag::err_drv_invalid_value) 1550 << A->getAsString(Args) << A->getValue(); 1551 1552 if (Preprocessed) 1553 DashX = DashX.getPreprocessed(); 1554 if (ModuleMap) 1555 DashX = DashX.withFormat(InputKind::ModuleMap); 1556 } 1557 1558 // '-' is the default input if none is given. 1559 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1560 Opts.Inputs.clear(); 1561 if (Inputs.empty()) 1562 Inputs.push_back("-"); 1563 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1564 InputKind IK = DashX; 1565 if (IK.isUnknown()) { 1566 IK = FrontendOptions::getInputKindForExtension( 1567 StringRef(Inputs[i]).rsplit('.').second); 1568 // FIXME: Warn on this? 1569 if (IK.isUnknown()) 1570 IK = InputKind::C; 1571 // FIXME: Remove this hack. 1572 if (i == 0) 1573 DashX = IK; 1574 } 1575 1576 // The -emit-module action implicitly takes a module map. 1577 if (Opts.ProgramAction == frontend::GenerateModule && 1578 IK.getFormat() == InputKind::Source) 1579 IK = IK.withFormat(InputKind::ModuleMap); 1580 1581 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1582 } 1583 1584 return DashX; 1585 } 1586 1587 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1588 void *MainAddr) { 1589 std::string ClangExecutable = 1590 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1591 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1592 1593 // Compute the path to the resource directory. 1594 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1595 SmallString<128> P(Dir); 1596 if (ClangResourceDir != "") 1597 llvm::sys::path::append(P, ClangResourceDir); 1598 else 1599 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1600 "clang", CLANG_VERSION_STRING); 1601 1602 return P.str(); 1603 } 1604 1605 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1606 const std::string &WorkingDir) { 1607 using namespace options; 1608 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1609 Opts.Verbose = Args.hasArg(OPT_v); 1610 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1611 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1612 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1613 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1614 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1615 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1616 1617 // Canonicalize -fmodules-cache-path before storing it. 1618 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1619 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1620 if (WorkingDir.empty()) 1621 llvm::sys::fs::make_absolute(P); 1622 else 1623 llvm::sys::fs::make_absolute(WorkingDir, P); 1624 } 1625 llvm::sys::path::remove_dots(P); 1626 Opts.ModuleCachePath = P.str(); 1627 1628 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1629 // Only the -fmodule-file=<name>=<file> form. 1630 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1631 StringRef Val = A->getValue(); 1632 if (Val.find('=') != StringRef::npos) 1633 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1634 } 1635 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1636 Opts.AddPrebuiltModulePath(A->getValue()); 1637 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1638 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1639 Opts.ModulesValidateDiagnosticOptions = 1640 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1641 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1642 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1643 Opts.ModuleCachePruneInterval = 1644 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1645 Opts.ModuleCachePruneAfter = 1646 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1647 Opts.ModulesValidateOncePerBuildSession = 1648 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1649 Opts.BuildSessionTimestamp = 1650 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1651 Opts.ModulesValidateSystemHeaders = 1652 Args.hasArg(OPT_fmodules_validate_system_headers); 1653 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1654 Opts.ModuleFormat = A->getValue(); 1655 1656 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1657 StringRef MacroDef = A->getValue(); 1658 Opts.ModulesIgnoreMacros.insert( 1659 llvm::CachedHashString(MacroDef.split('=').first)); 1660 } 1661 1662 // Add -I..., -F..., and -index-header-map options in order. 1663 bool IsIndexHeaderMap = false; 1664 bool IsSysrootSpecified = 1665 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1666 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1667 if (A->getOption().matches(OPT_index_header_map)) { 1668 // -index-header-map applies to the next -I or -F. 1669 IsIndexHeaderMap = true; 1670 continue; 1671 } 1672 1673 frontend::IncludeDirGroup Group = 1674 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1675 1676 bool IsFramework = A->getOption().matches(OPT_F); 1677 std::string Path = A->getValue(); 1678 1679 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1680 SmallString<32> Buffer; 1681 llvm::sys::path::append(Buffer, Opts.Sysroot, 1682 llvm::StringRef(A->getValue()).substr(1)); 1683 Path = Buffer.str(); 1684 } 1685 1686 Opts.AddPath(Path, Group, IsFramework, 1687 /*IgnoreSysroot*/ true); 1688 IsIndexHeaderMap = false; 1689 } 1690 1691 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1692 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1693 for (const Arg *A : 1694 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1695 if (A->getOption().matches(OPT_iprefix)) 1696 Prefix = A->getValue(); 1697 else if (A->getOption().matches(OPT_iwithprefix)) 1698 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1699 else 1700 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1701 } 1702 1703 for (const Arg *A : Args.filtered(OPT_idirafter)) 1704 Opts.AddPath(A->getValue(), frontend::After, false, true); 1705 for (const Arg *A : Args.filtered(OPT_iquote)) 1706 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1707 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1708 Opts.AddPath(A->getValue(), frontend::System, false, 1709 !A->getOption().matches(OPT_iwithsysroot)); 1710 for (const Arg *A : Args.filtered(OPT_iframework)) 1711 Opts.AddPath(A->getValue(), frontend::System, true, true); 1712 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot)) 1713 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1714 /*IgnoreSysRoot=*/false); 1715 1716 // Add the paths for the various language specific isystem flags. 1717 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1718 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1719 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1720 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1721 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1722 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1723 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1724 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1725 1726 // Add the internal paths from a driver that detects standard include paths. 1727 for (const Arg *A : 1728 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1729 frontend::IncludeDirGroup Group = frontend::System; 1730 if (A->getOption().matches(OPT_internal_externc_isystem)) 1731 Group = frontend::ExternCSystem; 1732 Opts.AddPath(A->getValue(), Group, false, true); 1733 } 1734 1735 // Add the path prefixes which are implicitly treated as being system headers. 1736 for (const Arg *A : 1737 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1738 Opts.AddSystemHeaderPrefix( 1739 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1740 1741 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1742 Opts.AddVFSOverlayFile(A->getValue()); 1743 } 1744 1745 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1746 const llvm::Triple &T, 1747 PreprocessorOptions &PPOpts, 1748 LangStandard::Kind LangStd) { 1749 // Set some properties which depend solely on the input kind; it would be nice 1750 // to move these to the language standard, and have the driver resolve the 1751 // input kind + language standard. 1752 // 1753 // FIXME: Perhaps a better model would be for a single source file to have 1754 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 1755 // simultaneously active? 1756 if (IK.getLanguage() == InputKind::Asm) { 1757 Opts.AsmPreprocessor = 1; 1758 } else if (IK.isObjectiveC()) { 1759 Opts.ObjC1 = Opts.ObjC2 = 1; 1760 } 1761 1762 if (LangStd == LangStandard::lang_unspecified) { 1763 // Based on the base language, pick one. 1764 switch (IK.getLanguage()) { 1765 case InputKind::Unknown: 1766 case InputKind::LLVM_IR: 1767 llvm_unreachable("Invalid input kind!"); 1768 case InputKind::OpenCL: 1769 LangStd = LangStandard::lang_opencl10; 1770 break; 1771 case InputKind::CUDA: 1772 LangStd = LangStandard::lang_cuda; 1773 break; 1774 case InputKind::Asm: 1775 case InputKind::C: 1776 // The PS4 uses C99 as the default C standard. 1777 if (T.isPS4()) 1778 LangStd = LangStandard::lang_gnu99; 1779 else 1780 LangStd = LangStandard::lang_gnu11; 1781 break; 1782 case InputKind::ObjC: 1783 LangStd = LangStandard::lang_gnu11; 1784 break; 1785 case InputKind::CXX: 1786 case InputKind::ObjCXX: 1787 LangStd = LangStandard::lang_gnucxx14; 1788 break; 1789 case InputKind::RenderScript: 1790 LangStd = LangStandard::lang_c99; 1791 break; 1792 } 1793 } 1794 1795 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1796 Opts.LineComment = Std.hasLineComments(); 1797 Opts.C99 = Std.isC99(); 1798 Opts.C11 = Std.isC11(); 1799 Opts.C17 = Std.isC17(); 1800 Opts.CPlusPlus = Std.isCPlusPlus(); 1801 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1802 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1803 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 1804 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 1805 Opts.Digraphs = Std.hasDigraphs(); 1806 Opts.GNUMode = Std.isGNUMode(); 1807 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 1808 Opts.HexFloats = Std.hasHexFloats(); 1809 Opts.ImplicitInt = Std.hasImplicitInt(); 1810 1811 // Set OpenCL Version. 1812 Opts.OpenCL = Std.isOpenCL(); 1813 if (LangStd == LangStandard::lang_opencl10) 1814 Opts.OpenCLVersion = 100; 1815 else if (LangStd == LangStandard::lang_opencl11) 1816 Opts.OpenCLVersion = 110; 1817 else if (LangStd == LangStandard::lang_opencl12) 1818 Opts.OpenCLVersion = 120; 1819 else if (LangStd == LangStandard::lang_opencl20) 1820 Opts.OpenCLVersion = 200; 1821 1822 // OpenCL has some additional defaults. 1823 if (Opts.OpenCL) { 1824 Opts.AltiVec = 0; 1825 Opts.ZVector = 0; 1826 Opts.LaxVectorConversions = 0; 1827 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 1828 Opts.NativeHalfType = 1; 1829 Opts.NativeHalfArgsAndReturns = 1; 1830 // Include default header file for OpenCL. 1831 if (Opts.IncludeDefaultHeader) { 1832 PPOpts.Includes.push_back("opencl-c.h"); 1833 } 1834 } 1835 1836 Opts.CUDA = IK.getLanguage() == InputKind::CUDA; 1837 if (Opts.CUDA) 1838 // Set default FP_CONTRACT to FAST. 1839 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 1840 1841 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 1842 if (Opts.RenderScript) { 1843 Opts.NativeHalfType = 1; 1844 Opts.NativeHalfArgsAndReturns = 1; 1845 } 1846 1847 // OpenCL and C++ both have bool, true, false keywords. 1848 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1849 1850 // OpenCL has half keyword 1851 Opts.Half = Opts.OpenCL; 1852 1853 // C++ has wchar_t keyword. 1854 Opts.WChar = Opts.CPlusPlus; 1855 1856 Opts.GNUKeywords = Opts.GNUMode; 1857 Opts.CXXOperatorNames = Opts.CPlusPlus; 1858 1859 Opts.AlignedAllocation = Opts.CPlusPlus17; 1860 1861 Opts.DollarIdents = !Opts.AsmPreprocessor; 1862 } 1863 1864 /// Attempt to parse a visibility value out of the given argument. 1865 static Visibility parseVisibility(Arg *arg, ArgList &args, 1866 DiagnosticsEngine &diags) { 1867 StringRef value = arg->getValue(); 1868 if (value == "default") { 1869 return DefaultVisibility; 1870 } else if (value == "hidden" || value == "internal") { 1871 return HiddenVisibility; 1872 } else if (value == "protected") { 1873 // FIXME: diagnose if target does not support protected visibility 1874 return ProtectedVisibility; 1875 } 1876 1877 diags.Report(diag::err_drv_invalid_value) 1878 << arg->getAsString(args) << value; 1879 return DefaultVisibility; 1880 } 1881 1882 /// Check if input file kind and language standard are compatible. 1883 static bool IsInputCompatibleWithStandard(InputKind IK, 1884 const LangStandard &S) { 1885 switch (IK.getLanguage()) { 1886 case InputKind::Unknown: 1887 case InputKind::LLVM_IR: 1888 llvm_unreachable("should not parse language flags for this input"); 1889 1890 case InputKind::C: 1891 case InputKind::ObjC: 1892 case InputKind::RenderScript: 1893 return S.getLanguage() == InputKind::C; 1894 1895 case InputKind::OpenCL: 1896 return S.getLanguage() == InputKind::OpenCL; 1897 1898 case InputKind::CXX: 1899 case InputKind::ObjCXX: 1900 return S.getLanguage() == InputKind::CXX; 1901 1902 case InputKind::CUDA: 1903 // FIXME: What -std= values should be permitted for CUDA compilations? 1904 return S.getLanguage() == InputKind::CUDA || 1905 S.getLanguage() == InputKind::CXX; 1906 1907 case InputKind::Asm: 1908 // Accept (and ignore) all -std= values. 1909 // FIXME: The -std= value is not ignored; it affects the tokenization 1910 // and preprocessing rules if we're preprocessing this asm input. 1911 return true; 1912 } 1913 1914 llvm_unreachable("unexpected input language"); 1915 } 1916 1917 /// Get language name for given input kind. 1918 static const StringRef GetInputKindName(InputKind IK) { 1919 switch (IK.getLanguage()) { 1920 case InputKind::C: 1921 return "C"; 1922 case InputKind::ObjC: 1923 return "Objective-C"; 1924 case InputKind::CXX: 1925 return "C++"; 1926 case InputKind::ObjCXX: 1927 return "Objective-C++"; 1928 case InputKind::OpenCL: 1929 return "OpenCL"; 1930 case InputKind::CUDA: 1931 return "CUDA"; 1932 case InputKind::RenderScript: 1933 return "RenderScript"; 1934 1935 case InputKind::Asm: 1936 return "Asm"; 1937 case InputKind::LLVM_IR: 1938 return "LLVM IR"; 1939 1940 case InputKind::Unknown: 1941 break; 1942 } 1943 llvm_unreachable("unknown input language"); 1944 } 1945 1946 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1947 const TargetOptions &TargetOpts, 1948 PreprocessorOptions &PPOpts, 1949 DiagnosticsEngine &Diags) { 1950 // FIXME: Cleanup per-file based stuff. 1951 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1952 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1953 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1954 #define LANGSTANDARD(id, name, lang, desc, features) \ 1955 .Case(name, LangStandard::lang_##id) 1956 #define LANGSTANDARD_ALIAS(id, alias) \ 1957 .Case(alias, LangStandard::lang_##id) 1958 #include "clang/Frontend/LangStandards.def" 1959 .Default(LangStandard::lang_unspecified); 1960 if (LangStd == LangStandard::lang_unspecified) { 1961 Diags.Report(diag::err_drv_invalid_value) 1962 << A->getAsString(Args) << A->getValue(); 1963 // Report supported standards with short description. 1964 for (unsigned KindValue = 0; 1965 KindValue != LangStandard::lang_unspecified; 1966 ++KindValue) { 1967 const LangStandard &Std = LangStandard::getLangStandardForKind( 1968 static_cast<LangStandard::Kind>(KindValue)); 1969 if (IsInputCompatibleWithStandard(IK, Std)) { 1970 auto Diag = Diags.Report(diag::note_drv_use_standard); 1971 Diag << Std.getName() << Std.getDescription(); 1972 unsigned NumAliases = 0; 1973 #define LANGSTANDARD(id, name, lang, desc, features) 1974 #define LANGSTANDARD_ALIAS(id, alias) \ 1975 if (KindValue == LangStandard::lang_##id) ++NumAliases; 1976 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1977 #include "clang/Frontend/LangStandards.def" 1978 Diag << NumAliases; 1979 #define LANGSTANDARD(id, name, lang, desc, features) 1980 #define LANGSTANDARD_ALIAS(id, alias) \ 1981 if (KindValue == LangStandard::lang_##id) Diag << alias; 1982 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1983 #include "clang/Frontend/LangStandards.def" 1984 } 1985 } 1986 } else { 1987 // Valid standard, check to make sure language and standard are 1988 // compatible. 1989 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1990 if (!IsInputCompatibleWithStandard(IK, Std)) { 1991 Diags.Report(diag::err_drv_argument_not_allowed_with) 1992 << A->getAsString(Args) << GetInputKindName(IK); 1993 } 1994 } 1995 } 1996 1997 // -cl-std only applies for OpenCL language standards. 1998 // Override the -std option in this case. 1999 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2000 LangStandard::Kind OpenCLLangStd 2001 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2002 .Cases("cl", "CL", LangStandard::lang_opencl10) 2003 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2004 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2005 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2006 .Default(LangStandard::lang_unspecified); 2007 2008 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2009 Diags.Report(diag::err_drv_invalid_value) 2010 << A->getAsString(Args) << A->getValue(); 2011 } 2012 else 2013 LangStd = OpenCLLangStd; 2014 } 2015 2016 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2017 2018 llvm::Triple T(TargetOpts.Triple); 2019 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2020 2021 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2022 // This option should be deprecated for CL > 1.0 because 2023 // this option was added for compatibility with OpenCL 1.0. 2024 if (Args.getLastArg(OPT_cl_strict_aliasing) 2025 && Opts.OpenCLVersion > 100) { 2026 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 2027 std::string(".") + 2028 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 2029 Diags.Report(diag::warn_option_invalid_ocl_version) 2030 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2031 } 2032 2033 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2034 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2035 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2036 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2037 // name, as it doesn't seem a useful distinction. 2038 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2039 Opts.GNUKeywords); 2040 2041 if (Args.hasArg(OPT_fno_operator_names)) 2042 Opts.CXXOperatorNames = 0; 2043 2044 if (Args.hasArg(OPT_fcuda_is_device)) 2045 Opts.CUDAIsDevice = 1; 2046 2047 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2048 Opts.CUDAAllowVariadicFunctions = 1; 2049 2050 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2051 Opts.CUDAHostDeviceConstexpr = 0; 2052 2053 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 2054 Opts.CUDADeviceFlushDenormalsToZero = 1; 2055 2056 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2057 Opts.CUDADeviceApproxTranscendentals = 1; 2058 2059 if (Opts.ObjC1) { 2060 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2061 StringRef value = arg->getValue(); 2062 if (Opts.ObjCRuntime.tryParse(value)) 2063 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2064 } 2065 2066 if (Args.hasArg(OPT_fobjc_gc_only)) 2067 Opts.setGC(LangOptions::GCOnly); 2068 else if (Args.hasArg(OPT_fobjc_gc)) 2069 Opts.setGC(LangOptions::HybridGC); 2070 else if (Args.hasArg(OPT_fobjc_arc)) { 2071 Opts.ObjCAutoRefCount = 1; 2072 if (!Opts.ObjCRuntime.allowsARC()) 2073 Diags.Report(diag::err_arc_unsupported_on_runtime); 2074 } 2075 2076 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2077 // whether the feature is actually enabled. This is predominantly 2078 // determined by -fobjc-runtime, but we allow it to be overridden 2079 // from the command line for testing purposes. 2080 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2081 Opts.ObjCWeakRuntime = 1; 2082 else 2083 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2084 2085 // ObjCWeak determines whether __weak is actually enabled. 2086 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2087 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2088 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2089 assert(!Opts.ObjCWeak); 2090 } else if (Opts.getGC() != LangOptions::NonGC) { 2091 Diags.Report(diag::err_objc_weak_with_gc); 2092 } else if (!Opts.ObjCWeakRuntime) { 2093 Diags.Report(diag::err_objc_weak_unsupported); 2094 } else { 2095 Opts.ObjCWeak = 1; 2096 } 2097 } else if (Opts.ObjCAutoRefCount) { 2098 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2099 } 2100 2101 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2102 Opts.ObjCInferRelatedResultType = 0; 2103 2104 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2105 Opts.ObjCSubscriptingLegacyRuntime = 2106 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2107 } 2108 2109 if (Args.hasArg(OPT_fgnu89_inline)) { 2110 if (Opts.CPlusPlus) 2111 Diags.Report(diag::err_drv_argument_not_allowed_with) 2112 << "-fgnu89-inline" << GetInputKindName(IK); 2113 else 2114 Opts.GNUInline = 1; 2115 } 2116 2117 if (Args.hasArg(OPT_fapple_kext)) { 2118 if (!Opts.CPlusPlus) 2119 Diags.Report(diag::warn_c_kext); 2120 else 2121 Opts.AppleKext = 1; 2122 } 2123 2124 if (Args.hasArg(OPT_print_ivar_layout)) 2125 Opts.ObjCGCBitmapPrint = 1; 2126 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2127 Opts.NoConstantCFStrings = 1; 2128 2129 if (Args.hasArg(OPT_fzvector)) 2130 Opts.ZVector = 1; 2131 2132 if (Args.hasArg(OPT_pthread)) 2133 Opts.POSIXThreads = 1; 2134 2135 // The value-visibility mode defaults to "default". 2136 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2137 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2138 } else { 2139 Opts.setValueVisibilityMode(DefaultVisibility); 2140 } 2141 2142 // The type-visibility mode defaults to the value-visibility mode. 2143 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2144 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2145 } else { 2146 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2147 } 2148 2149 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2150 Opts.InlineVisibilityHidden = 1; 2151 2152 if (Args.hasArg(OPT_ftrapv)) { 2153 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2154 // Set the handler, if one is specified. 2155 Opts.OverflowHandler = 2156 Args.getLastArgValue(OPT_ftrapv_handler); 2157 } 2158 else if (Args.hasArg(OPT_fwrapv)) 2159 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2160 2161 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2162 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2163 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2164 Opts.MSCompatibilityVersion = 0; 2165 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2166 VersionTuple VT; 2167 if (VT.tryParse(A->getValue())) 2168 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2169 << A->getValue(); 2170 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2171 VT.getMinor().getValueOr(0) * 100000 + 2172 VT.getSubminor().getValueOr(0); 2173 } 2174 2175 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 2176 // is specified, or -std is set to a conforming mode. 2177 // Trigraphs are disabled by default in c++1z onwards. 2178 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2179 Opts.Trigraphs = 2180 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2181 2182 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2183 OPT_fno_dollars_in_identifiers, 2184 Opts.DollarIdents); 2185 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2186 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2187 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2188 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2189 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2190 Opts.ConstStrings); 2191 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2192 Opts.LaxVectorConversions = 0; 2193 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2194 Opts.ThreadsafeStatics = 0; 2195 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2196 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2197 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2198 2199 // Handle exception personalities 2200 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2201 options::OPT_fseh_exceptions, 2202 options::OPT_fdwarf_exceptions); 2203 if (A) { 2204 const Option &Opt = A->getOption(); 2205 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2206 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2207 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2208 } 2209 2210 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2211 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2212 2213 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2214 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2215 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2216 && Opts.OpenCLVersion >= 200); 2217 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2218 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2219 2220 // Enable [[]] attributes in C++11 by default. 2221 Opts.DoubleSquareBracketAttributes = 2222 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2223 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11); 2224 2225 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2226 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2227 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2228 Opts.ModulesDeclUse = 2229 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2230 Opts.ModulesLocalVisibility = 2231 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2232 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2233 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2234 Opts.ModulesSearchAll = Opts.Modules && 2235 !Args.hasArg(OPT_fno_modules_search_all) && 2236 Args.hasArg(OPT_fmodules_search_all); 2237 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2238 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2239 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2240 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2241 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2242 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2243 .Case("char", 1) 2244 .Case("short", 2) 2245 .Case("int", 4) 2246 .Default(0); 2247 if (Opts.WCharSize == 0) 2248 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2249 } 2250 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2251 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2252 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2253 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2254 if (!Opts.NoBuiltin) 2255 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2256 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2257 Opts.RelaxedTemplateTemplateArgs = 2258 Args.hasArg(OPT_frelaxed_template_template_args); 2259 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2260 Opts.AlignedAllocation = 2261 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2262 Opts.AlignedAllocation); 2263 Opts.AlignedAllocationUnavailable = 2264 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2265 Opts.NewAlignOverride = 2266 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2267 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2268 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2269 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2270 << A->getValue(); 2271 Opts.NewAlignOverride = 0; 2272 } 2273 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2274 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2275 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2276 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2277 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2278 Opts.InstantiationDepth = 2279 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2280 Opts.ArrowDepth = 2281 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2282 Opts.ConstexprCallDepth = 2283 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2284 Opts.ConstexprStepLimit = 2285 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2286 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2287 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2288 Opts.NumLargeByValueCopy = 2289 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2290 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2291 Opts.ObjCConstantStringClass = 2292 Args.getLastArgValue(OPT_fconstant_string_class); 2293 Opts.ObjCDefaultSynthProperties = 2294 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2295 Opts.EncodeExtendedBlockSig = 2296 Args.hasArg(OPT_fencode_extended_block_signature); 2297 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2298 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2299 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2300 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2301 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2302 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2303 Opts.Static = Args.hasArg(OPT_static_define); 2304 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2305 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2306 || Args.hasArg(OPT_fdump_record_layouts); 2307 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2308 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2309 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2310 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2311 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2312 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2313 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2314 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2315 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2316 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2317 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2318 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2319 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2320 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2321 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2322 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2323 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2324 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2325 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2326 // is enabled. 2327 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2328 | Opts.NativeHalfArgsAndReturns; 2329 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2330 2331 // __declspec is enabled by default for the PS4 by the driver, and also 2332 // enabled for Microsoft Extensions or Borland Extensions, here. 2333 // 2334 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2335 // CUDA extension. However, it is required for supporting 2336 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2337 // been rewritten in terms of something more generic, remove the Opts.CUDA 2338 // term here. 2339 Opts.DeclSpecKeyword = 2340 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2341 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2342 2343 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2344 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2345 .Case("target", LangOptions::ASMM_Target) 2346 .Case("no", LangOptions::ASMM_Off) 2347 .Case("yes", LangOptions::ASMM_On) 2348 .Default(255)) { 2349 default: 2350 Diags.Report(diag::err_drv_invalid_value) 2351 << "-faddress-space-map-mangling=" << A->getValue(); 2352 break; 2353 case LangOptions::ASMM_Target: 2354 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2355 break; 2356 case LangOptions::ASMM_On: 2357 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2358 break; 2359 case LangOptions::ASMM_Off: 2360 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2361 break; 2362 } 2363 } 2364 2365 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2366 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2367 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2368 A->getValue()) 2369 .Case("single", 2370 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2371 .Case("multiple", 2372 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2373 .Case("virtual", 2374 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2375 .Default(LangOptions::PPTMK_BestCase); 2376 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2377 Diags.Report(diag::err_drv_invalid_value) 2378 << "-fms-memptr-rep=" << A->getValue(); 2379 2380 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2381 } 2382 2383 // Check for MS default calling conventions being specified. 2384 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2385 LangOptions::DefaultCallingConvention DefaultCC = 2386 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2387 .Case("cdecl", LangOptions::DCC_CDecl) 2388 .Case("fastcall", LangOptions::DCC_FastCall) 2389 .Case("stdcall", LangOptions::DCC_StdCall) 2390 .Case("vectorcall", LangOptions::DCC_VectorCall) 2391 .Case("regcall", LangOptions::DCC_RegCall) 2392 .Default(LangOptions::DCC_None); 2393 if (DefaultCC == LangOptions::DCC_None) 2394 Diags.Report(diag::err_drv_invalid_value) 2395 << "-fdefault-calling-conv=" << A->getValue(); 2396 2397 llvm::Triple T(TargetOpts.Triple); 2398 llvm::Triple::ArchType Arch = T.getArch(); 2399 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2400 DefaultCC == LangOptions::DCC_StdCall) && 2401 Arch != llvm::Triple::x86; 2402 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2403 DefaultCC == LangOptions::DCC_RegCall) && 2404 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2405 if (emitError) 2406 Diags.Report(diag::err_drv_argument_not_allowed_with) 2407 << A->getSpelling() << T.getTriple(); 2408 else 2409 Opts.setDefaultCallingConv(DefaultCC); 2410 } 2411 2412 // -mrtd option 2413 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2414 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2415 Diags.Report(diag::err_drv_argument_not_allowed_with) 2416 << A->getSpelling() << "-fdefault-calling-conv"; 2417 else { 2418 llvm::Triple T(TargetOpts.Triple); 2419 if (T.getArch() != llvm::Triple::x86) 2420 Diags.Report(diag::err_drv_argument_not_allowed_with) 2421 << A->getSpelling() << T.getTriple(); 2422 else 2423 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2424 } 2425 } 2426 2427 // Check if -fopenmp is specified. 2428 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2429 // Check if -fopenmp-simd is specified. 2430 Opts.OpenMPSimd = !Opts.OpenMP && Args.hasFlag(options::OPT_fopenmp_simd, 2431 options::OPT_fno_openmp_simd, 2432 /*Default=*/false); 2433 Opts.OpenMPUseTLS = 2434 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2435 Opts.OpenMPIsDevice = 2436 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2437 2438 if (Opts.OpenMP || Opts.OpenMPSimd) { 2439 if (int Version = 2440 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, 2441 Opts.OpenMPSimd ? 45 : Opts.OpenMP, Diags)) 2442 Opts.OpenMP = Version; 2443 else if (Opts.OpenMPSimd) 2444 Opts.OpenMP = 45; 2445 // Provide diagnostic when a given target is not expected to be an OpenMP 2446 // device or host. 2447 if (!Opts.OpenMPIsDevice) { 2448 switch (T.getArch()) { 2449 default: 2450 break; 2451 // Add unsupported host targets here: 2452 case llvm::Triple::nvptx: 2453 case llvm::Triple::nvptx64: 2454 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2455 << TargetOpts.Triple; 2456 break; 2457 } 2458 } 2459 } 2460 2461 // Set the flag to prevent the implementation from emitting device exception 2462 // handling code for those requiring so. 2463 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2464 Opts.Exceptions = 0; 2465 Opts.CXXExceptions = 0; 2466 } 2467 2468 // Get the OpenMP target triples if any. 2469 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2470 2471 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2472 llvm::Triple TT(A->getValue(i)); 2473 2474 if (TT.getArch() == llvm::Triple::UnknownArch || 2475 !(TT.getArch() == llvm::Triple::ppc || 2476 TT.getArch() == llvm::Triple::ppc64 || 2477 TT.getArch() == llvm::Triple::ppc64le || 2478 TT.getArch() == llvm::Triple::nvptx || 2479 TT.getArch() == llvm::Triple::nvptx64 || 2480 TT.getArch() == llvm::Triple::x86 || 2481 TT.getArch() == llvm::Triple::x86_64)) 2482 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2483 else 2484 Opts.OMPTargetTriples.push_back(TT); 2485 } 2486 } 2487 2488 // Get OpenMP host file path if any and report if a non existent file is 2489 // found 2490 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2491 Opts.OMPHostIRFile = A->getValue(); 2492 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2493 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2494 << Opts.OMPHostIRFile; 2495 } 2496 2497 // Record whether the __DEPRECATED define was requested. 2498 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2499 OPT_fno_deprecated_macro, 2500 Opts.Deprecated); 2501 2502 // FIXME: Eliminate this dependency. 2503 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2504 OptSize = getOptimizationLevelSize(Args); 2505 Opts.Optimize = Opt != 0; 2506 Opts.OptimizeSize = OptSize != 0; 2507 2508 // This is the __NO_INLINE__ define, which just depends on things like the 2509 // optimization level and -fno-inline, not actually whether the backend has 2510 // inlining enabled. 2511 Opts.NoInlineDefine = !Opts.Optimize; 2512 if (Arg *InlineArg = Args.getLastArg( 2513 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2514 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2515 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2516 Opts.NoInlineDefine = true; 2517 2518 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2519 Args.hasArg(OPT_cl_fast_relaxed_math); 2520 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2521 Args.hasArg(OPT_cl_finite_math_only) || 2522 Args.hasArg(OPT_cl_fast_relaxed_math); 2523 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2524 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2525 Args.hasArg(OPT_cl_fast_relaxed_math); 2526 2527 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2528 StringRef Val = A->getValue(); 2529 if (Val == "fast") 2530 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2531 else if (Val == "on") 2532 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2533 else if (Val == "off") 2534 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2535 else 2536 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2537 } 2538 2539 Opts.RetainCommentsFromSystemHeaders = 2540 Args.hasArg(OPT_fretain_comments_from_system_headers); 2541 2542 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2543 switch (SSP) { 2544 default: 2545 Diags.Report(diag::err_drv_invalid_value) 2546 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2547 break; 2548 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2549 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2550 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2551 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2552 } 2553 2554 // Parse -fsanitize= arguments. 2555 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2556 Diags, Opts.Sanitize); 2557 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2558 Opts.SanitizeAddressFieldPadding = 2559 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2560 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2561 2562 // -fxray-instrument 2563 Opts.XRayInstrument = 2564 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2565 2566 // -fxray-always-emit-customevents 2567 Opts.XRayAlwaysEmitCustomEvents = 2568 Args.hasFlag(OPT_fxray_always_emit_customevents, 2569 OPT_fnoxray_always_emit_customevents, false); 2570 2571 // -fxray-{always,never}-instrument= filenames. 2572 Opts.XRayAlwaysInstrumentFiles = 2573 Args.getAllArgValues(OPT_fxray_always_instrument); 2574 Opts.XRayNeverInstrumentFiles = 2575 Args.getAllArgValues(OPT_fxray_never_instrument); 2576 2577 // -fallow-editor-placeholders 2578 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2579 } 2580 2581 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 2582 switch (Action) { 2583 case frontend::ASTDeclList: 2584 case frontend::ASTDump: 2585 case frontend::ASTPrint: 2586 case frontend::ASTView: 2587 case frontend::EmitAssembly: 2588 case frontend::EmitBC: 2589 case frontend::EmitHTML: 2590 case frontend::EmitLLVM: 2591 case frontend::EmitLLVMOnly: 2592 case frontend::EmitCodeGenOnly: 2593 case frontend::EmitObj: 2594 case frontend::FixIt: 2595 case frontend::GenerateModule: 2596 case frontend::GenerateModuleInterface: 2597 case frontend::GeneratePCH: 2598 case frontend::GeneratePTH: 2599 case frontend::ParseSyntaxOnly: 2600 case frontend::ModuleFileInfo: 2601 case frontend::VerifyPCH: 2602 case frontend::PluginAction: 2603 case frontend::PrintDeclContext: 2604 case frontend::RewriteObjC: 2605 case frontend::RewriteTest: 2606 case frontend::RunAnalysis: 2607 case frontend::MigrateSource: 2608 return false; 2609 2610 case frontend::DumpRawTokens: 2611 case frontend::DumpTokens: 2612 case frontend::InitOnly: 2613 case frontend::PrintPreamble: 2614 case frontend::PrintPreprocessedInput: 2615 case frontend::RewriteMacros: 2616 case frontend::RunPreprocessorOnly: 2617 return true; 2618 } 2619 llvm_unreachable("invalid frontend action"); 2620 } 2621 2622 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2623 DiagnosticsEngine &Diags, 2624 frontend::ActionKind Action) { 2625 using namespace options; 2626 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2627 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2628 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2629 Opts.TokenCache = A->getValue(); 2630 else 2631 Opts.TokenCache = Opts.ImplicitPTHInclude; 2632 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2633 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2634 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2635 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 2636 2637 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2638 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2639 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2640 2641 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2642 StringRef Value(A->getValue()); 2643 size_t Comma = Value.find(','); 2644 unsigned Bytes = 0; 2645 unsigned EndOfLine = 0; 2646 2647 if (Comma == StringRef::npos || 2648 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2649 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2650 Diags.Report(diag::err_drv_preamble_format); 2651 else { 2652 Opts.PrecompiledPreambleBytes.first = Bytes; 2653 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2654 } 2655 } 2656 2657 // Add macros from the command line. 2658 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2659 if (A->getOption().matches(OPT_D)) 2660 Opts.addMacroDef(A->getValue()); 2661 else 2662 Opts.addMacroUndef(A->getValue()); 2663 } 2664 2665 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2666 2667 // Add the ordered list of -includes. 2668 for (const Arg *A : Args.filtered(OPT_include)) 2669 Opts.Includes.emplace_back(A->getValue()); 2670 2671 for (const Arg *A : Args.filtered(OPT_chain_include)) 2672 Opts.ChainedIncludes.emplace_back(A->getValue()); 2673 2674 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2675 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2676 2677 if (Split.second.empty()) { 2678 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2679 continue; 2680 } 2681 2682 Opts.addRemappedFile(Split.first, Split.second); 2683 } 2684 2685 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2686 StringRef Name = A->getValue(); 2687 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2688 .Case("libc++", ARCXX_libcxx) 2689 .Case("libstdc++", ARCXX_libstdcxx) 2690 .Case("none", ARCXX_nolib) 2691 .Default(~0U); 2692 if (Library == ~0U) 2693 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2694 else 2695 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2696 } 2697 2698 // Always avoid lexing editor placeholders when we're just running the 2699 // preprocessor as we never want to emit the 2700 // "editor placeholder in source file" error in PP only mode. 2701 if (isStrictlyPreprocessorAction(Action)) 2702 Opts.LexEditorPlaceholders = false; 2703 } 2704 2705 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2706 ArgList &Args, 2707 frontend::ActionKind Action) { 2708 using namespace options; 2709 2710 if (isStrictlyPreprocessorAction(Action)) 2711 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2712 else 2713 Opts.ShowCPP = 0; 2714 2715 Opts.ShowComments = Args.hasArg(OPT_C); 2716 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2717 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2718 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2719 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2720 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2721 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 2722 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2723 } 2724 2725 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2726 DiagnosticsEngine &Diags) { 2727 using namespace options; 2728 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2729 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2730 StringRef Value = A->getValue(); 2731 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2732 .Case("default", llvm::EABI::Default) 2733 .Case("4", llvm::EABI::EABI4) 2734 .Case("5", llvm::EABI::EABI5) 2735 .Case("gnu", llvm::EABI::GNU) 2736 .Default(llvm::EABI::Unknown); 2737 if (EABIVersion == llvm::EABI::Unknown) 2738 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2739 << Value; 2740 else 2741 Opts.EABIVersion = EABIVersion; 2742 } 2743 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2744 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2745 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2746 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2747 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2748 // Use the default target triple if unspecified. 2749 if (Opts.Triple.empty()) 2750 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2751 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2752 } 2753 2754 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2755 const char *const *ArgBegin, 2756 const char *const *ArgEnd, 2757 DiagnosticsEngine &Diags) { 2758 bool Success = true; 2759 2760 // Parse the arguments. 2761 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2762 const unsigned IncludedFlagsBitmask = options::CC1Option; 2763 unsigned MissingArgIndex, MissingArgCount; 2764 InputArgList Args = 2765 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2766 MissingArgCount, IncludedFlagsBitmask); 2767 LangOptions &LangOpts = *Res.getLangOpts(); 2768 2769 // Check for missing argument error. 2770 if (MissingArgCount) { 2771 Diags.Report(diag::err_drv_missing_argument) 2772 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2773 Success = false; 2774 } 2775 2776 // Issue errors on unknown arguments. 2777 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2778 auto ArgString = A->getAsString(Args); 2779 std::string Nearest; 2780 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 2781 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 2782 else 2783 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 2784 << ArgString << Nearest; 2785 Success = false; 2786 } 2787 2788 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2789 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2790 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2791 Success &= 2792 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2793 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2794 ParseCommentArgs(LangOpts.CommentOpts, Args); 2795 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2796 // FIXME: We shouldn't have to pass the DashX option around here 2797 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2798 LangOpts.IsHeaderFile); 2799 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2800 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2801 Res.getTargetOpts()); 2802 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2803 Res.getFileSystemOpts().WorkingDir); 2804 if (DashX.getFormat() == InputKind::Precompiled || 2805 DashX.getLanguage() == InputKind::LLVM_IR) { 2806 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2807 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2808 // what the input type is. 2809 if (Args.hasArg(OPT_fobjc_arc)) 2810 LangOpts.ObjCAutoRefCount = 1; 2811 // PIClevel and PIELevel are needed during code generation and this should be 2812 // set regardless of the input type. 2813 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2814 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2815 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2816 Diags, LangOpts.Sanitize); 2817 } else { 2818 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2819 // FIXME: Should we really be calling this for an InputKind::Asm input? 2820 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2821 Res.getPreprocessorOpts(), Diags); 2822 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2823 LangOpts.ObjCExceptions = 1; 2824 } 2825 2826 if (LangOpts.CUDA) { 2827 // During CUDA device-side compilation, the aux triple is the 2828 // triple used for host compilation. 2829 if (LangOpts.CUDAIsDevice) 2830 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2831 } 2832 2833 // Set the triple of the host for OpenMP device compile. 2834 if (LangOpts.OpenMPIsDevice) 2835 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2836 2837 // FIXME: Override value name discarding when asan or msan is used because the 2838 // backend passes depend on the name of the alloca in order to print out 2839 // names. 2840 Res.getCodeGenOpts().DiscardValueNames &= 2841 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2842 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2843 2844 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 2845 Res.getFrontendOpts().ProgramAction); 2846 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2847 Res.getFrontendOpts().ProgramAction); 2848 2849 // Turn on -Wspir-compat for SPIR target. 2850 llvm::Triple T(Res.getTargetOpts().Triple); 2851 auto Arch = T.getArch(); 2852 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2853 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2854 } 2855 2856 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 2857 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 2858 !Res.getLangOpts()->Sanitize.empty()) { 2859 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 2860 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 2861 } 2862 return Success; 2863 } 2864 2865 std::string CompilerInvocation::getModuleHash() const { 2866 // Note: For QoI reasons, the things we use as a hash here should all be 2867 // dumped via the -module-info flag. 2868 using llvm::hash_code; 2869 using llvm::hash_value; 2870 using llvm::hash_combine; 2871 2872 // Start the signature with the compiler version. 2873 // FIXME: We'd rather use something more cryptographically sound than 2874 // CityHash, but this will do for now. 2875 hash_code code = hash_value(getClangFullRepositoryVersion()); 2876 2877 // Extend the signature with the language options 2878 #define LANGOPT(Name, Bits, Default, Description) \ 2879 code = hash_combine(code, LangOpts->Name); 2880 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2881 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2882 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2883 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2884 #include "clang/Basic/LangOptions.def" 2885 2886 for (StringRef Feature : LangOpts->ModuleFeatures) 2887 code = hash_combine(code, Feature); 2888 2889 // Extend the signature with the target options. 2890 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2891 TargetOpts->ABI); 2892 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2893 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2894 2895 // Extend the signature with preprocessor options. 2896 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2897 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2898 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2899 2900 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2901 I = getPreprocessorOpts().Macros.begin(), 2902 IEnd = getPreprocessorOpts().Macros.end(); 2903 I != IEnd; ++I) { 2904 // If we're supposed to ignore this macro for the purposes of modules, 2905 // don't put it into the hash. 2906 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2907 // Check whether we're ignoring this macro. 2908 StringRef MacroDef = I->first; 2909 if (hsOpts.ModulesIgnoreMacros.count( 2910 llvm::CachedHashString(MacroDef.split('=').first))) 2911 continue; 2912 } 2913 2914 code = hash_combine(code, I->first, I->second); 2915 } 2916 2917 // Extend the signature with the sysroot and other header search options. 2918 code = hash_combine(code, hsOpts.Sysroot, 2919 hsOpts.ModuleFormat, 2920 hsOpts.UseDebugInfo, 2921 hsOpts.UseBuiltinIncludes, 2922 hsOpts.UseStandardSystemIncludes, 2923 hsOpts.UseStandardCXXIncludes, 2924 hsOpts.UseLibcxx, 2925 hsOpts.ModulesValidateDiagnosticOptions); 2926 code = hash_combine(code, hsOpts.ResourceDir); 2927 2928 // Extend the signature with the user build path. 2929 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2930 2931 // Extend the signature with the module file extensions. 2932 const FrontendOptions &frontendOpts = getFrontendOpts(); 2933 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2934 code = ext->hashExtension(code); 2935 } 2936 2937 // Extend the signature with the enabled sanitizers, if at least one is 2938 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 2939 SanitizerSet SanHash = LangOpts->Sanitize; 2940 SanHash.clear(getPPTransparentSanitizers()); 2941 if (!SanHash.empty()) 2942 code = hash_combine(code, SanHash.Mask); 2943 2944 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2945 } 2946 2947 namespace clang { 2948 2949 template<typename IntTy> 2950 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2951 IntTy Default, 2952 DiagnosticsEngine *Diags) { 2953 IntTy Res = Default; 2954 if (Arg *A = Args.getLastArg(Id)) { 2955 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2956 if (Diags) 2957 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2958 << A->getValue(); 2959 } 2960 } 2961 return Res; 2962 } 2963 2964 2965 // Declared in clang/Frontend/Utils.h. 2966 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2967 DiagnosticsEngine *Diags) { 2968 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2969 } 2970 2971 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2972 uint64_t Default, 2973 DiagnosticsEngine *Diags) { 2974 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2975 } 2976 2977 void BuryPointer(const void *Ptr) { 2978 // This function may be called only a small fixed amount of times per each 2979 // invocation, otherwise we do actually have a leak which we want to report. 2980 // If this function is called more than kGraveYardMaxSize times, the pointers 2981 // will not be properly buried and a leak detector will report a leak, which 2982 // is what we want in such case. 2983 static const size_t kGraveYardMaxSize = 16; 2984 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2985 static std::atomic<unsigned> GraveYardSize; 2986 unsigned Idx = GraveYardSize++; 2987 if (Idx >= kGraveYardMaxSize) 2988 return; 2989 GraveYard[Idx] = Ptr; 2990 } 2991 2992 IntrusiveRefCntPtr<vfs::FileSystem> 2993 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2994 DiagnosticsEngine &Diags) { 2995 return createVFSFromCompilerInvocation(CI, Diags, vfs::getRealFileSystem()); 2996 } 2997 2998 IntrusiveRefCntPtr<vfs::FileSystem> 2999 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3000 DiagnosticsEngine &Diags, 3001 IntrusiveRefCntPtr<vfs::FileSystem> BaseFS) { 3002 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3003 return BaseFS; 3004 3005 IntrusiveRefCntPtr<vfs::OverlayFileSystem> Overlay( 3006 new vfs::OverlayFileSystem(BaseFS)); 3007 // earlier vfs files are on the bottom 3008 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3009 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3010 BaseFS->getBufferForFile(File); 3011 if (!Buffer) { 3012 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3013 return IntrusiveRefCntPtr<vfs::FileSystem>(); 3014 } 3015 3016 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 3017 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 3018 if (!FS.get()) { 3019 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3020 return IntrusiveRefCntPtr<vfs::FileSystem>(); 3021 } 3022 Overlay->pushOverlay(FS); 3023 } 3024 return Overlay; 3025 } 3026 } // end namespace clang 3027