1 //===--- CompilerInvocation.cpp -------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Frontend/CompilerInvocation.h" 11 #include "TestModuleFileExtension.h" 12 #include "clang/Basic/Builtins.h" 13 #include "clang/Basic/FileManager.h" 14 #include "clang/Basic/Version.h" 15 #include "clang/Config/config.h" 16 #include "clang/Driver/DriverDiagnostic.h" 17 #include "clang/Driver/Options.h" 18 #include "clang/Driver/Util.h" 19 #include "clang/Frontend/FrontendDiagnostic.h" 20 #include "clang/Frontend/LangStandard.h" 21 #include "clang/Frontend/Utils.h" 22 #include "clang/Lex/HeaderSearchOptions.h" 23 #include "clang/Lex/PreprocessorOptions.h" 24 #include "clang/Serialization/ASTReader.h" 25 #include "clang/Serialization/ModuleFileExtension.h" 26 #include "llvm/ADT/Hashing.h" 27 #include "llvm/ADT/STLExtras.h" 28 #include "llvm/ADT/SmallVector.h" 29 #include "llvm/ADT/StringExtras.h" 30 #include "llvm/ADT/StringSwitch.h" 31 #include "llvm/ADT/Triple.h" 32 #include "llvm/Linker/Linker.h" 33 #include "llvm/Option/Arg.h" 34 #include "llvm/Option/ArgList.h" 35 #include "llvm/Option/OptTable.h" 36 #include "llvm/Option/Option.h" 37 #include "llvm/ProfileData/InstrProfReader.h" 38 #include "llvm/Support/CodeGen.h" 39 #include "llvm/Support/ErrorHandling.h" 40 #include "llvm/Support/FileSystem.h" 41 #include "llvm/Support/Host.h" 42 #include "llvm/Support/Path.h" 43 #include "llvm/Support/Process.h" 44 #include "llvm/Target/TargetOptions.h" 45 #include "llvm/Support/ScopedPrinter.h" 46 #include <atomic> 47 #include <memory> 48 #include <sys/stat.h> 49 #include <system_error> 50 using namespace clang; 51 52 //===----------------------------------------------------------------------===// 53 // Initialization. 54 //===----------------------------------------------------------------------===// 55 56 CompilerInvocationBase::CompilerInvocationBase() 57 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 58 DiagnosticOpts(new DiagnosticOptions()), 59 HeaderSearchOpts(new HeaderSearchOptions()), 60 PreprocessorOpts(new PreprocessorOptions()) {} 61 62 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 63 : LangOpts(new LangOptions(*X.getLangOpts())), 64 TargetOpts(new TargetOptions(X.getTargetOpts())), 65 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 66 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 67 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 68 69 CompilerInvocationBase::~CompilerInvocationBase() {} 70 71 //===----------------------------------------------------------------------===// 72 // Deserialization (from args) 73 //===----------------------------------------------------------------------===// 74 75 using namespace clang::driver; 76 using namespace clang::driver::options; 77 using namespace llvm::opt; 78 79 // 80 81 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 82 DiagnosticsEngine &Diags) { 83 unsigned DefaultOpt = 0; 84 if (IK.getLanguage() == InputKind::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 85 DefaultOpt = 2; 86 87 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 88 if (A->getOption().matches(options::OPT_O0)) 89 return 0; 90 91 if (A->getOption().matches(options::OPT_Ofast)) 92 return 3; 93 94 assert (A->getOption().matches(options::OPT_O)); 95 96 StringRef S(A->getValue()); 97 if (S == "s" || S == "z" || S.empty()) 98 return 2; 99 100 if (S == "g") 101 return 1; 102 103 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 104 } 105 106 return DefaultOpt; 107 } 108 109 static unsigned getOptimizationLevelSize(ArgList &Args) { 110 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 111 if (A->getOption().matches(options::OPT_O)) { 112 switch (A->getValue()[0]) { 113 default: 114 return 0; 115 case 's': 116 return 1; 117 case 'z': 118 return 2; 119 } 120 } 121 } 122 return 0; 123 } 124 125 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 126 OptSpecifier GroupWithValue, 127 std::vector<std::string> &Diagnostics) { 128 for (Arg *A : Args.filtered(Group)) { 129 if (A->getOption().getKind() == Option::FlagClass) { 130 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 131 // its name (minus the "W" or "R" at the beginning) to the warning list. 132 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 133 } else if (A->getOption().matches(GroupWithValue)) { 134 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 135 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 136 } else { 137 // Otherwise, add its value (for OPT_W_Joined and similar). 138 for (const char *Arg : A->getValues()) 139 Diagnostics.emplace_back(Arg); 140 } 141 } 142 } 143 144 static void getAllNoBuiltinFuncValues(ArgList &Args, 145 std::vector<std::string> &Funcs) { 146 SmallVector<const char *, 8> Values; 147 for (const auto &Arg : Args) { 148 const Option &O = Arg->getOption(); 149 if (O.matches(options::OPT_fno_builtin_)) { 150 const char *FuncName = Arg->getValue(); 151 if (Builtin::Context::isBuiltinFunc(FuncName)) 152 Values.push_back(FuncName); 153 } 154 } 155 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 156 } 157 158 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 159 DiagnosticsEngine &Diags) { 160 using namespace options; 161 bool Success = true; 162 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 163 StringRef Name = A->getValue(); 164 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 165 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 166 .Case(CMDFLAG, NAME##Model) 167 #include "clang/StaticAnalyzer/Core/Analyses.def" 168 .Default(NumStores); 169 if (Value == NumStores) { 170 Diags.Report(diag::err_drv_invalid_value) 171 << A->getAsString(Args) << Name; 172 Success = false; 173 } else { 174 Opts.AnalysisStoreOpt = Value; 175 } 176 } 177 178 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 179 StringRef Name = A->getValue(); 180 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 181 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 182 .Case(CMDFLAG, NAME##Model) 183 #include "clang/StaticAnalyzer/Core/Analyses.def" 184 .Default(NumConstraints); 185 if (Value == NumConstraints) { 186 Diags.Report(diag::err_drv_invalid_value) 187 << A->getAsString(Args) << Name; 188 Success = false; 189 } else { 190 Opts.AnalysisConstraintsOpt = Value; 191 } 192 } 193 194 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 195 StringRef Name = A->getValue(); 196 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 197 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 198 .Case(CMDFLAG, PD_##NAME) 199 #include "clang/StaticAnalyzer/Core/Analyses.def" 200 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 201 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 202 Diags.Report(diag::err_drv_invalid_value) 203 << A->getAsString(Args) << Name; 204 Success = false; 205 } else { 206 Opts.AnalysisDiagOpt = Value; 207 } 208 } 209 210 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 211 StringRef Name = A->getValue(); 212 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 213 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 214 .Case(CMDFLAG, NAME) 215 #include "clang/StaticAnalyzer/Core/Analyses.def" 216 .Default(NumPurgeModes); 217 if (Value == NumPurgeModes) { 218 Diags.Report(diag::err_drv_invalid_value) 219 << A->getAsString(Args) << Name; 220 Success = false; 221 } else { 222 Opts.AnalysisPurgeOpt = Value; 223 } 224 } 225 226 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 227 StringRef Name = A->getValue(); 228 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 229 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 230 .Case(CMDFLAG, NAME) 231 #include "clang/StaticAnalyzer/Core/Analyses.def" 232 .Default(NumInliningModes); 233 if (Value == NumInliningModes) { 234 Diags.Report(diag::err_drv_invalid_value) 235 << A->getAsString(Args) << Name; 236 Success = false; 237 } else { 238 Opts.InliningMode = Value; 239 } 240 } 241 242 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 243 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 244 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 245 246 Opts.visualizeExplodedGraphWithGraphViz = 247 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 248 Opts.visualizeExplodedGraphWithUbiGraph = 249 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 250 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 251 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 252 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 253 Opts.AnalyzeNestedBlocks = 254 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 255 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 256 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 257 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 258 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 259 Opts.maxBlockVisitOnPath = 260 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 261 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 262 Opts.InlineMaxStackDepth = 263 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 264 Opts.InlineMaxStackDepth, Diags); 265 266 Opts.CheckersControlList.clear(); 267 for (const Arg *A : 268 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 269 A->claim(); 270 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 271 // We can have a list of comma separated checker names, e.g: 272 // '-analyzer-checker=cocoa,unix' 273 StringRef checkerList = A->getValue(); 274 SmallVector<StringRef, 4> checkers; 275 checkerList.split(checkers, ","); 276 for (StringRef checker : checkers) 277 Opts.CheckersControlList.emplace_back(checker, enable); 278 } 279 280 // Go through the analyzer configuration options. 281 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 282 A->claim(); 283 // We can have a list of comma separated config names, e.g: 284 // '-analyzer-config key1=val1,key2=val2' 285 StringRef configList = A->getValue(); 286 SmallVector<StringRef, 4> configVals; 287 configList.split(configVals, ","); 288 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 289 StringRef key, val; 290 std::tie(key, val) = configVals[i].split("="); 291 if (val.empty()) { 292 Diags.Report(SourceLocation(), 293 diag::err_analyzer_config_no_value) << configVals[i]; 294 Success = false; 295 break; 296 } 297 if (val.find('=') != StringRef::npos) { 298 Diags.Report(SourceLocation(), 299 diag::err_analyzer_config_multiple_values) 300 << configVals[i]; 301 Success = false; 302 break; 303 } 304 Opts.Config[key] = val; 305 } 306 } 307 308 return Success; 309 } 310 311 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 312 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 313 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 314 return true; 315 } 316 317 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 318 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 319 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 320 } 321 322 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 323 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 324 StringRef Value = A->getValue(); 325 if (Value == "small" || Value == "kernel" || Value == "medium" || 326 Value == "large") 327 return Value; 328 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 329 } 330 return "default"; 331 } 332 333 static StringRef getRelocModel(ArgList &Args, DiagnosticsEngine &Diags) { 334 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 335 StringRef Value = A->getValue(); 336 if (Value == "static" || Value == "pic" || Value == "ropi" || 337 Value == "rwpi" || Value == "ropi-rwpi" || Value == "dynamic-no-pic") 338 return Value; 339 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 340 } 341 return "pic"; 342 } 343 344 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 345 /// It returns a pointer to the newly generated Regex instance. 346 static std::shared_ptr<llvm::Regex> 347 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 348 Arg *RpassArg) { 349 StringRef Val = RpassArg->getValue(); 350 std::string RegexError; 351 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 352 if (!Pattern->isValid(RegexError)) { 353 Diags.Report(diag::err_drv_optimization_remark_pattern) 354 << RegexError << RpassArg->getAsString(Args); 355 Pattern.reset(); 356 } 357 return Pattern; 358 } 359 360 static bool parseDiagnosticLevelMask(StringRef FlagName, 361 const std::vector<std::string> &Levels, 362 DiagnosticsEngine *Diags, 363 DiagnosticLevelMask &M) { 364 bool Success = true; 365 for (const auto &Level : Levels) { 366 DiagnosticLevelMask const PM = 367 llvm::StringSwitch<DiagnosticLevelMask>(Level) 368 .Case("note", DiagnosticLevelMask::Note) 369 .Case("remark", DiagnosticLevelMask::Remark) 370 .Case("warning", DiagnosticLevelMask::Warning) 371 .Case("error", DiagnosticLevelMask::Error) 372 .Default(DiagnosticLevelMask::None); 373 if (PM == DiagnosticLevelMask::None) { 374 Success = false; 375 if (Diags) 376 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 377 } 378 M = M | PM; 379 } 380 return Success; 381 } 382 383 static void parseSanitizerKinds(StringRef FlagName, 384 const std::vector<std::string> &Sanitizers, 385 DiagnosticsEngine &Diags, SanitizerSet &S) { 386 for (const auto &Sanitizer : Sanitizers) { 387 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 388 if (K == 0) 389 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 390 else 391 S.set(K, true); 392 } 393 } 394 395 // Set the profile kind for fprofile-instrument. 396 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 397 DiagnosticsEngine &Diags) { 398 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 399 if (A == nullptr) 400 return; 401 StringRef S = A->getValue(); 402 unsigned I = llvm::StringSwitch<unsigned>(S) 403 .Case("none", CodeGenOptions::ProfileNone) 404 .Case("clang", CodeGenOptions::ProfileClangInstr) 405 .Case("llvm", CodeGenOptions::ProfileIRInstr) 406 .Default(~0U); 407 if (I == ~0U) { 408 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 409 << S; 410 return; 411 } 412 CodeGenOptions::ProfileInstrKind Instrumentor = 413 static_cast<CodeGenOptions::ProfileInstrKind>(I); 414 Opts.setProfileInstr(Instrumentor); 415 } 416 417 // Set the profile kind using fprofile-instrument-use-path. 418 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 419 const Twine &ProfileName) { 420 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 421 // In error, return silently and let Clang PGOUse report the error message. 422 if (auto E = ReaderOrErr.takeError()) { 423 llvm::consumeError(std::move(E)); 424 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 425 return; 426 } 427 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 428 std::move(ReaderOrErr.get()); 429 if (PGOReader->isIRLevelProfile()) 430 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 431 else 432 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 433 } 434 435 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 436 DiagnosticsEngine &Diags, 437 const TargetOptions &TargetOpts) { 438 using namespace options; 439 bool Success = true; 440 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 441 442 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 443 // TODO: This could be done in Driver 444 unsigned MaxOptLevel = 3; 445 if (OptimizationLevel > MaxOptLevel) { 446 // If the optimization level is not supported, fall back on the default 447 // optimization 448 Diags.Report(diag::warn_drv_optimization_value) 449 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 450 OptimizationLevel = MaxOptLevel; 451 } 452 Opts.OptimizationLevel = OptimizationLevel; 453 454 // At O0 we want to fully disable inlining outside of cases marked with 455 // 'alwaysinline' that are required for correctness. 456 Opts.setInlining((Opts.OptimizationLevel == 0) 457 ? CodeGenOptions::OnlyAlwaysInlining 458 : CodeGenOptions::NormalInlining); 459 // Explicit inlining flags can disable some or all inlining even at 460 // optimization levels above zero. 461 if (Arg *InlineArg = Args.getLastArg( 462 options::OPT_finline_functions, options::OPT_finline_hint_functions, 463 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 464 if (Opts.OptimizationLevel > 0) { 465 const Option &InlineOpt = InlineArg->getOption(); 466 if (InlineOpt.matches(options::OPT_finline_functions)) 467 Opts.setInlining(CodeGenOptions::NormalInlining); 468 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 469 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 470 else 471 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 472 } 473 } 474 475 Opts.ExperimentalNewPassManager = Args.hasFlag( 476 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 477 /* Default */ false); 478 479 Opts.DebugPassManager = 480 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 481 /* Default */ false); 482 483 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 484 StringRef Name = A->getValue(); 485 if (Name == "Accelerate") 486 Opts.setVecLib(CodeGenOptions::Accelerate); 487 else if (Name == "SVML") 488 Opts.setVecLib(CodeGenOptions::SVML); 489 else if (Name == "none") 490 Opts.setVecLib(CodeGenOptions::NoLibrary); 491 else 492 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 493 } 494 495 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 496 unsigned Val = 497 llvm::StringSwitch<unsigned>(A->getValue()) 498 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 499 .Case("limited", codegenoptions::LimitedDebugInfo) 500 .Case("standalone", codegenoptions::FullDebugInfo) 501 .Default(~0U); 502 if (Val == ~0U) 503 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 504 << A->getValue(); 505 else 506 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 507 } 508 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 509 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 510 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 511 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 512 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 513 .Default(~0U); 514 if (Val == ~0U) 515 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 516 << A->getValue(); 517 else 518 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 519 } 520 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 521 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 522 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 523 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 524 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 525 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 526 Opts.EnableSplitDwarf = Args.hasArg(OPT_enable_split_dwarf); 527 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 528 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 529 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 530 Opts.DebugExplicitImport = Triple.isPS4CPU(); 531 532 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 533 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 534 535 if (const Arg *A = 536 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 537 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 538 539 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 540 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 541 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 542 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 543 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 544 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 545 OPT_fuse_register_sized_bitfield_access); 546 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 547 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 548 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 549 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 550 Opts.NoCommon = Args.hasArg(OPT_fno_common); 551 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 552 Opts.OptimizeSize = getOptimizationLevelSize(Args); 553 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 554 Args.hasArg(OPT_ffreestanding)); 555 if (Opts.SimplifyLibCalls) 556 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 557 Opts.UnrollLoops = 558 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 559 (Opts.OptimizationLevel > 1)); 560 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 561 562 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 563 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 564 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 565 Opts.DebugInfoForProfiling = Args.hasFlag( 566 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 567 Opts.GnuPubnames = Args.hasArg(OPT_ggnu_pubnames); 568 569 setPGOInstrumentor(Opts, Args, Diags); 570 Opts.InstrProfileOutput = 571 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 572 Opts.ProfileInstrumentUsePath = 573 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 574 if (!Opts.ProfileInstrumentUsePath.empty()) 575 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 576 577 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 578 Opts.setClangABICompat(CodeGenOptions::ClangABI::Latest); 579 580 StringRef Ver = A->getValue(); 581 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 582 unsigned Major, Minor = 0; 583 584 // Check the version number is valid: either 3.x (0 <= x <= 9) or 585 // y or y.0 (4 <= y <= current version). 586 if (!VerParts.first.startswith("0") && 587 !VerParts.first.getAsInteger(10, Major) && 588 3 <= Major && Major <= CLANG_VERSION_MAJOR && 589 (Major == 3 ? VerParts.second.size() == 1 && 590 !VerParts.second.getAsInteger(10, Minor) 591 : VerParts.first.size() == Ver.size() || 592 VerParts.second == "0")) { 593 // Got a valid version number. 594 if (Major == 3 && Minor <= 8) 595 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver3_8); 596 else if (Major <= 4) 597 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver4); 598 } else if (Ver != "latest") { 599 Diags.Report(diag::err_drv_invalid_value) 600 << A->getAsString(Args) << A->getValue(); 601 } 602 } 603 604 Opts.CoverageMapping = 605 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 606 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 607 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 608 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 609 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 610 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 611 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 612 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 613 Opts.CodeModel = getCodeModel(Args, Diags); 614 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 615 Opts.DisableFPElim = 616 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 617 Opts.DisableFree = Args.hasArg(OPT_disable_free); 618 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 619 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 620 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 621 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 622 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 623 Args.hasArg(OPT_cl_fast_relaxed_math); 624 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 625 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 626 Args.hasArg(OPT_cl_finite_math_only) || 627 Args.hasArg(OPT_cl_fast_relaxed_math)); 628 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 629 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 630 Args.hasArg(OPT_cl_finite_math_only) || 631 Args.hasArg(OPT_cl_fast_relaxed_math)); 632 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 633 Args.hasArg(OPT_cl_no_signed_zeros) || 634 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 635 Args.hasArg(OPT_cl_fast_relaxed_math)); 636 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 637 Opts.CorrectlyRoundedDivSqrt = 638 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 639 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 640 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 641 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 642 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 643 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 644 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 645 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 646 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 647 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 648 Opts.IncrementalLinkerCompatible = 649 Args.hasArg(OPT_mincremental_linker_compatible); 650 Opts.PIECopyRelocations = 651 Args.hasArg(OPT_mpie_copy_relocations); 652 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 653 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 654 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 655 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 656 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 657 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 658 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 659 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 660 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 661 Args.hasArg(OPT_cl_fast_relaxed_math); 662 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 663 Opts.RelocationModel = getRelocModel(Args, Diags); 664 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 665 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 666 Diags.Report(diag::err_drv_invalid_value) 667 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 668 << Opts.ThreadModel; 669 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 670 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 671 672 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 673 OPT_fno_function_sections, false); 674 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 675 OPT_fno_data_sections, false); 676 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 677 OPT_fno_unique_section_names, true); 678 679 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 680 681 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 682 683 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 684 685 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 686 Opts.EmitSummaryIndex = false; 687 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 688 StringRef S = A->getValue(); 689 if (S == "thin") 690 Opts.EmitSummaryIndex = true; 691 else if (S != "full") 692 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 693 } 694 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 695 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 696 if (IK.getLanguage() != InputKind::LLVM_IR) 697 Diags.Report(diag::err_drv_argument_only_allowed_with) 698 << A->getAsString(Args) << "-x ir"; 699 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 700 } 701 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 702 703 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 704 705 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 706 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 707 708 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 709 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 710 711 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 712 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 713 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 714 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 715 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 716 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 717 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 718 Opts.CoverageNoFunctionNamesInData = 719 Args.hasArg(OPT_coverage_no_function_names_in_data); 720 Opts.CoverageExitBlockBeforeBody = 721 Args.hasArg(OPT_coverage_exit_block_before_body); 722 if (Args.hasArg(OPT_coverage_version_EQ)) { 723 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 724 if (CoverageVersion.size() != 4) { 725 Diags.Report(diag::err_drv_invalid_value) 726 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 727 << CoverageVersion; 728 } else { 729 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 730 } 731 } 732 } 733 // Handle -fembed-bitcode option. 734 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 735 StringRef Name = A->getValue(); 736 unsigned Model = llvm::StringSwitch<unsigned>(Name) 737 .Case("off", CodeGenOptions::Embed_Off) 738 .Case("all", CodeGenOptions::Embed_All) 739 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 740 .Case("marker", CodeGenOptions::Embed_Marker) 741 .Default(~0U); 742 if (Model == ~0U) { 743 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 744 Success = false; 745 } else 746 Opts.setEmbedBitcode( 747 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 748 } 749 // FIXME: For backend options that are not yet recorded as function 750 // attributes in the IR, keep track of them so we can embed them in a 751 // separate data section and use them when building the bitcode. 752 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 753 for (const auto &A : Args) { 754 // Do not encode output and input. 755 if (A->getOption().getID() == options::OPT_o || 756 A->getOption().getID() == options::OPT_INPUT || 757 A->getOption().getID() == options::OPT_x || 758 A->getOption().getID() == options::OPT_fembed_bitcode || 759 (A->getOption().getGroup().isValid() && 760 A->getOption().getGroup().getID() == options::OPT_W_Group)) 761 continue; 762 ArgStringList ASL; 763 A->render(Args, ASL); 764 for (const auto &arg : ASL) { 765 StringRef ArgStr(arg); 766 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 767 // using \00 to seperate each commandline options. 768 Opts.CmdArgs.push_back('\0'); 769 } 770 } 771 } 772 773 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 774 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 775 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 776 Opts.XRayInstructionThreshold = 777 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 778 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 779 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 780 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 781 782 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 783 OPT_compress_debug_sections_EQ)) { 784 if (A->getOption().getID() == OPT_compress_debug_sections) { 785 // TODO: be more clever about the compression type auto-detection 786 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 787 } else { 788 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 789 .Case("none", llvm::DebugCompressionType::None) 790 .Case("zlib", llvm::DebugCompressionType::Z) 791 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 792 .Default(llvm::DebugCompressionType::None); 793 Opts.setCompressDebugSections(DCT); 794 } 795 } 796 797 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 798 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 799 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 800 CodeGenOptions::BitcodeFileToLink F; 801 F.Filename = A->getValue(); 802 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) { 803 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 804 // When linking CUDA bitcode, propagate function attributes so that 805 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 806 F.PropagateAttrs = true; 807 F.Internalize = true; 808 } 809 Opts.LinkBitcodeFiles.push_back(F); 810 } 811 Opts.SanitizeCoverageType = 812 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 813 Opts.SanitizeCoverageIndirectCalls = 814 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 815 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 816 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 817 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 818 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 819 Opts.SanitizeCoverage8bitCounters = 820 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 821 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 822 Opts.SanitizeCoverageTracePCGuard = 823 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 824 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 825 Opts.SanitizeCoverageInline8bitCounters = 826 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 827 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 828 Opts.SanitizeCoverageStackDepth = 829 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 830 Opts.SanitizeMemoryTrackOrigins = 831 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 832 Opts.SanitizeMemoryUseAfterDtor = 833 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 834 OPT_fno_sanitize_memory_use_after_dtor, 835 false); 836 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 837 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 838 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 839 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 840 OPT_fno_sanitize_address_use_after_scope)) { 841 Opts.SanitizeAddressUseAfterScope = 842 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 843 } 844 Opts.SanitizeAddressGlobalsDeadStripping = 845 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 846 Opts.SSPBufferSize = 847 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 848 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 849 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 850 StringRef Val = A->getValue(); 851 unsigned StackAlignment = Opts.StackAlignment; 852 Val.getAsInteger(10, StackAlignment); 853 Opts.StackAlignment = StackAlignment; 854 } 855 856 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 857 StringRef Val = A->getValue(); 858 unsigned StackProbeSize = Opts.StackProbeSize; 859 Val.getAsInteger(0, StackProbeSize); 860 Opts.StackProbeSize = StackProbeSize; 861 } 862 863 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 864 StringRef Name = A->getValue(); 865 unsigned Method = llvm::StringSwitch<unsigned>(Name) 866 .Case("legacy", CodeGenOptions::Legacy) 867 .Case("non-legacy", CodeGenOptions::NonLegacy) 868 .Case("mixed", CodeGenOptions::Mixed) 869 .Default(~0U); 870 if (Method == ~0U) { 871 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 872 Success = false; 873 } else { 874 Opts.setObjCDispatchMethod( 875 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 876 } 877 } 878 879 Opts.EmulatedTLS = 880 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 881 882 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 883 StringRef Name = A->getValue(); 884 unsigned Model = llvm::StringSwitch<unsigned>(Name) 885 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 886 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 887 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 888 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 889 .Default(~0U); 890 if (Model == ~0U) { 891 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 892 Success = false; 893 } else { 894 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 895 } 896 } 897 898 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 899 StringRef Val = A->getValue(); 900 if (Val == "ieee") 901 Opts.FPDenormalMode = "ieee"; 902 else if (Val == "preserve-sign") 903 Opts.FPDenormalMode = "preserve-sign"; 904 else if (Val == "positive-zero") 905 Opts.FPDenormalMode = "positive-zero"; 906 else 907 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 908 } 909 910 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 911 if (A->getOption().matches(OPT_fpcc_struct_return)) { 912 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 913 } else { 914 assert(A->getOption().matches(OPT_freg_struct_return)); 915 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 916 } 917 } 918 919 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 920 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 921 bool NeedLocTracking = false; 922 923 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 924 if (!Opts.OptRecordFile.empty()) 925 NeedLocTracking = true; 926 927 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 928 Opts.OptimizationRemarkPattern = 929 GenerateOptimizationRemarkRegex(Diags, Args, A); 930 NeedLocTracking = true; 931 } 932 933 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 934 Opts.OptimizationRemarkMissedPattern = 935 GenerateOptimizationRemarkRegex(Diags, Args, A); 936 NeedLocTracking = true; 937 } 938 939 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 940 Opts.OptimizationRemarkAnalysisPattern = 941 GenerateOptimizationRemarkRegex(Diags, Args, A); 942 NeedLocTracking = true; 943 } 944 945 Opts.DiagnosticsWithHotness = 946 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 947 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 948 bool UsingProfile = UsingSampleProfile || 949 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 950 951 if (Opts.DiagnosticsWithHotness && !UsingProfile) 952 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 953 << "-fdiagnostics-show-hotness"; 954 955 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 956 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 957 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 958 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 959 << "-fdiagnostics-hotness-threshold="; 960 961 // If the user requested to use a sample profile for PGO, then the 962 // backend will need to track source location information so the profile 963 // can be incorporated into the IR. 964 if (UsingSampleProfile) 965 NeedLocTracking = true; 966 967 // If the user requested a flag that requires source locations available in 968 // the backend, make sure that the backend tracks source location information. 969 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 970 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 971 972 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 973 974 // Parse -fsanitize-recover= arguments. 975 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 976 parseSanitizerKinds("-fsanitize-recover=", 977 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 978 Opts.SanitizeRecover); 979 parseSanitizerKinds("-fsanitize-trap=", 980 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 981 Opts.SanitizeTrap); 982 983 Opts.CudaGpuBinaryFileNames = 984 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 985 986 Opts.Backchain = Args.hasArg(OPT_mbackchain); 987 988 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 989 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 990 991 return Success; 992 } 993 994 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 995 ArgList &Args) { 996 using namespace options; 997 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 998 Opts.Targets = Args.getAllArgValues(OPT_MT); 999 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1000 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1001 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1002 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1003 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1004 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1005 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 1006 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1007 Opts.ModuleDependencyOutputDir = 1008 Args.getLastArgValue(OPT_module_dependency_dir); 1009 if (Args.hasArg(OPT_MV)) 1010 Opts.OutputFormat = DependencyOutputFormat::NMake; 1011 // Add sanitizer blacklists as extra dependencies. 1012 // They won't be discovered by the regular preprocessor, so 1013 // we let make / ninja to know about this implicit dependency. 1014 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1015 // Only the -fmodule-file=<file> form. 1016 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1017 StringRef Val = A->getValue(); 1018 if (Val.find('=') == StringRef::npos) 1019 Opts.ExtraDeps.push_back(Val); 1020 } 1021 } 1022 1023 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1024 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1025 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1026 // Support both clang's -f[no-]color-diagnostics and gcc's 1027 // -f[no-]diagnostics-colors[=never|always|auto]. 1028 enum { 1029 Colors_On, 1030 Colors_Off, 1031 Colors_Auto 1032 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1033 for (Arg *A : Args) { 1034 const Option &O = A->getOption(); 1035 if (O.matches(options::OPT_fcolor_diagnostics) || 1036 O.matches(options::OPT_fdiagnostics_color)) { 1037 ShowColors = Colors_On; 1038 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1039 O.matches(options::OPT_fno_diagnostics_color)) { 1040 ShowColors = Colors_Off; 1041 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1042 StringRef Value(A->getValue()); 1043 if (Value == "always") 1044 ShowColors = Colors_On; 1045 else if (Value == "never") 1046 ShowColors = Colors_Off; 1047 else if (Value == "auto") 1048 ShowColors = Colors_Auto; 1049 } 1050 } 1051 return ShowColors == Colors_On || 1052 (ShowColors == Colors_Auto && 1053 llvm::sys::Process::StandardErrHasColors()); 1054 } 1055 1056 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1057 DiagnosticsEngine *Diags, 1058 bool DefaultDiagColor, bool DefaultShowOpt) { 1059 using namespace options; 1060 bool Success = true; 1061 1062 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1063 if (Arg *A = 1064 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1065 Opts.DiagnosticSerializationFile = A->getValue(); 1066 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1067 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1068 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1069 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1070 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1071 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1072 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1073 OPT_fno_show_column, 1074 /*Default=*/true); 1075 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1076 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1077 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1078 Opts.ShowOptionNames = 1079 Args.hasFlag(OPT_fdiagnostics_show_option, 1080 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1081 1082 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1083 1084 // Default behavior is to not to show note include stacks. 1085 Opts.ShowNoteIncludeStack = false; 1086 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1087 OPT_fno_diagnostics_show_note_include_stack)) 1088 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1089 Opts.ShowNoteIncludeStack = true; 1090 1091 StringRef ShowOverloads = 1092 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1093 if (ShowOverloads == "best") 1094 Opts.setShowOverloads(Ovl_Best); 1095 else if (ShowOverloads == "all") 1096 Opts.setShowOverloads(Ovl_All); 1097 else { 1098 Success = false; 1099 if (Diags) 1100 Diags->Report(diag::err_drv_invalid_value) 1101 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1102 << ShowOverloads; 1103 } 1104 1105 StringRef ShowCategory = 1106 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1107 if (ShowCategory == "none") 1108 Opts.ShowCategories = 0; 1109 else if (ShowCategory == "id") 1110 Opts.ShowCategories = 1; 1111 else if (ShowCategory == "name") 1112 Opts.ShowCategories = 2; 1113 else { 1114 Success = false; 1115 if (Diags) 1116 Diags->Report(diag::err_drv_invalid_value) 1117 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1118 << ShowCategory; 1119 } 1120 1121 StringRef Format = 1122 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1123 if (Format == "clang") 1124 Opts.setFormat(DiagnosticOptions::Clang); 1125 else if (Format == "msvc") 1126 Opts.setFormat(DiagnosticOptions::MSVC); 1127 else if (Format == "msvc-fallback") { 1128 Opts.setFormat(DiagnosticOptions::MSVC); 1129 Opts.CLFallbackMode = true; 1130 } else if (Format == "vi") 1131 Opts.setFormat(DiagnosticOptions::Vi); 1132 else { 1133 Success = false; 1134 if (Diags) 1135 Diags->Report(diag::err_drv_invalid_value) 1136 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1137 << Format; 1138 } 1139 1140 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1141 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1142 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1143 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1144 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1145 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1146 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1147 Diags, DiagMask); 1148 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1149 DiagMask = DiagnosticLevelMask::All; 1150 Opts.setVerifyIgnoreUnexpected(DiagMask); 1151 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1152 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1153 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1154 Opts.MacroBacktraceLimit = 1155 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1156 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1157 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1158 Args, OPT_ftemplate_backtrace_limit, 1159 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1160 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1161 Args, OPT_fconstexpr_backtrace_limit, 1162 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1163 Opts.SpellCheckingLimit = getLastArgIntValue( 1164 Args, OPT_fspell_checking_limit, 1165 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1166 Opts.SnippetLineLimit = getLastArgIntValue( 1167 Args, OPT_fcaret_diagnostics_max_lines, 1168 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1169 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1170 DiagnosticOptions::DefaultTabStop, Diags); 1171 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1172 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1173 if (Diags) 1174 Diags->Report(diag::warn_ignoring_ftabstop_value) 1175 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1176 } 1177 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1178 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1179 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1180 1181 return Success; 1182 } 1183 1184 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1185 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1186 } 1187 1188 /// Parse the argument to the -ftest-module-file-extension 1189 /// command-line argument. 1190 /// 1191 /// \returns true on error, false on success. 1192 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1193 std::string &BlockName, 1194 unsigned &MajorVersion, 1195 unsigned &MinorVersion, 1196 bool &Hashed, 1197 std::string &UserInfo) { 1198 SmallVector<StringRef, 5> Args; 1199 Arg.split(Args, ':', 5); 1200 if (Args.size() < 5) 1201 return true; 1202 1203 BlockName = Args[0]; 1204 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1205 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1206 if (Args[3].getAsInteger(2, Hashed)) return true; 1207 if (Args.size() > 4) 1208 UserInfo = Args[4]; 1209 return false; 1210 } 1211 1212 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1213 DiagnosticsEngine &Diags, 1214 bool &IsHeaderFile) { 1215 using namespace options; 1216 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1217 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1218 switch (A->getOption().getID()) { 1219 default: 1220 llvm_unreachable("Invalid option in group!"); 1221 case OPT_ast_list: 1222 Opts.ProgramAction = frontend::ASTDeclList; break; 1223 case OPT_ast_dump: 1224 case OPT_ast_dump_all: 1225 case OPT_ast_dump_lookups: 1226 Opts.ProgramAction = frontend::ASTDump; break; 1227 case OPT_ast_print: 1228 Opts.ProgramAction = frontend::ASTPrint; break; 1229 case OPT_ast_view: 1230 Opts.ProgramAction = frontend::ASTView; break; 1231 case OPT_dump_raw_tokens: 1232 Opts.ProgramAction = frontend::DumpRawTokens; break; 1233 case OPT_dump_tokens: 1234 Opts.ProgramAction = frontend::DumpTokens; break; 1235 case OPT_S: 1236 Opts.ProgramAction = frontend::EmitAssembly; break; 1237 case OPT_emit_llvm_bc: 1238 Opts.ProgramAction = frontend::EmitBC; break; 1239 case OPT_emit_html: 1240 Opts.ProgramAction = frontend::EmitHTML; break; 1241 case OPT_emit_llvm: 1242 Opts.ProgramAction = frontend::EmitLLVM; break; 1243 case OPT_emit_llvm_only: 1244 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1245 case OPT_emit_codegen_only: 1246 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1247 case OPT_emit_obj: 1248 Opts.ProgramAction = frontend::EmitObj; break; 1249 case OPT_fixit_EQ: 1250 Opts.FixItSuffix = A->getValue(); 1251 // fall-through! 1252 case OPT_fixit: 1253 Opts.ProgramAction = frontend::FixIt; break; 1254 case OPT_emit_module: 1255 Opts.ProgramAction = frontend::GenerateModule; break; 1256 case OPT_emit_module_interface: 1257 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1258 case OPT_emit_pch: 1259 Opts.ProgramAction = frontend::GeneratePCH; break; 1260 case OPT_emit_pth: 1261 Opts.ProgramAction = frontend::GeneratePTH; break; 1262 case OPT_init_only: 1263 Opts.ProgramAction = frontend::InitOnly; break; 1264 case OPT_fsyntax_only: 1265 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1266 case OPT_module_file_info: 1267 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1268 case OPT_verify_pch: 1269 Opts.ProgramAction = frontend::VerifyPCH; break; 1270 case OPT_print_decl_contexts: 1271 Opts.ProgramAction = frontend::PrintDeclContext; break; 1272 case OPT_print_preamble: 1273 Opts.ProgramAction = frontend::PrintPreamble; break; 1274 case OPT_E: 1275 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1276 case OPT_rewrite_macros: 1277 Opts.ProgramAction = frontend::RewriteMacros; break; 1278 case OPT_rewrite_objc: 1279 Opts.ProgramAction = frontend::RewriteObjC; break; 1280 case OPT_rewrite_test: 1281 Opts.ProgramAction = frontend::RewriteTest; break; 1282 case OPT_analyze: 1283 Opts.ProgramAction = frontend::RunAnalysis; break; 1284 case OPT_migrate: 1285 Opts.ProgramAction = frontend::MigrateSource; break; 1286 case OPT_Eonly: 1287 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1288 } 1289 } 1290 1291 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1292 Opts.Plugins.emplace_back(A->getValue(0)); 1293 Opts.ProgramAction = frontend::PluginAction; 1294 Opts.ActionName = A->getValue(); 1295 } 1296 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1297 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1298 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1299 1300 for (const std::string &Arg : 1301 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1302 std::string BlockName; 1303 unsigned MajorVersion; 1304 unsigned MinorVersion; 1305 bool Hashed; 1306 std::string UserInfo; 1307 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1308 MinorVersion, Hashed, UserInfo)) { 1309 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1310 1311 continue; 1312 } 1313 1314 // Add the testing module file extension. 1315 Opts.ModuleFileExtensions.push_back( 1316 std::make_shared<TestModuleFileExtension>( 1317 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1318 } 1319 1320 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1321 Opts.CodeCompletionAt = 1322 ParsedSourceLocation::FromString(A->getValue()); 1323 if (Opts.CodeCompletionAt.FileName.empty()) 1324 Diags.Report(diag::err_drv_invalid_value) 1325 << A->getAsString(Args) << A->getValue(); 1326 } 1327 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1328 1329 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1330 Opts.Plugins = Args.getAllArgValues(OPT_load); 1331 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1332 Opts.ShowHelp = Args.hasArg(OPT_help); 1333 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1334 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1335 Opts.ShowVersion = Args.hasArg(OPT_version); 1336 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1337 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1338 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1339 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1340 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1341 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1342 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1343 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1344 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1345 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1346 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1347 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1348 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1349 // Only the -fmodule-file=<file> form. 1350 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1351 StringRef Val = A->getValue(); 1352 if (Val.find('=') == StringRef::npos) 1353 Opts.ModuleFiles.push_back(Val); 1354 } 1355 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1356 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1357 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1358 1359 Opts.CodeCompleteOpts.IncludeMacros 1360 = Args.hasArg(OPT_code_completion_macros); 1361 Opts.CodeCompleteOpts.IncludeCodePatterns 1362 = Args.hasArg(OPT_code_completion_patterns); 1363 Opts.CodeCompleteOpts.IncludeGlobals 1364 = !Args.hasArg(OPT_no_code_completion_globals); 1365 Opts.CodeCompleteOpts.IncludeBriefComments 1366 = Args.hasArg(OPT_code_completion_brief_comments); 1367 1368 Opts.OverrideRecordLayoutsFile 1369 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1370 Opts.AuxTriple = 1371 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1372 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1373 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1374 1375 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1376 OPT_arcmt_modify, 1377 OPT_arcmt_migrate)) { 1378 switch (A->getOption().getID()) { 1379 default: 1380 llvm_unreachable("missed a case"); 1381 case OPT_arcmt_check: 1382 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1383 break; 1384 case OPT_arcmt_modify: 1385 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1386 break; 1387 case OPT_arcmt_migrate: 1388 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1389 break; 1390 } 1391 } 1392 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1393 Opts.ARCMTMigrateReportOut 1394 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1395 Opts.ARCMTMigrateEmitARCErrors 1396 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1397 1398 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1399 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1400 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1401 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1402 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1403 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1404 if (Args.hasArg(OPT_objcmt_migrate_property)) 1405 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1406 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1407 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1408 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1409 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1410 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1411 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1412 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1413 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1414 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1415 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1416 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1417 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1418 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1419 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1420 if (Args.hasArg(OPT_objcmt_atomic_property)) 1421 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1422 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1423 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1424 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1425 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1426 if (Args.hasArg(OPT_objcmt_migrate_all)) 1427 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1428 1429 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1430 1431 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1432 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1433 Diags.Report(diag::err_drv_argument_not_allowed_with) 1434 << "ARC migration" << "ObjC migration"; 1435 } 1436 1437 InputKind DashX(InputKind::Unknown); 1438 if (const Arg *A = Args.getLastArg(OPT_x)) { 1439 StringRef XValue = A->getValue(); 1440 1441 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1442 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1443 bool Preprocessed = XValue.consume_back("-cpp-output"); 1444 bool ModuleMap = XValue.consume_back("-module-map"); 1445 IsHeaderFile = 1446 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1447 1448 // Principal languages. 1449 DashX = llvm::StringSwitch<InputKind>(XValue) 1450 .Case("c", InputKind::C) 1451 .Case("cl", InputKind::OpenCL) 1452 .Case("cuda", InputKind::CUDA) 1453 .Case("c++", InputKind::CXX) 1454 .Case("objective-c", InputKind::ObjC) 1455 .Case("objective-c++", InputKind::ObjCXX) 1456 .Case("renderscript", InputKind::RenderScript) 1457 .Default(InputKind::Unknown); 1458 1459 // "objc[++]-cpp-output" is an acceptable synonym for 1460 // "objective-c[++]-cpp-output". 1461 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1462 DashX = llvm::StringSwitch<InputKind>(XValue) 1463 .Case("objc", InputKind::ObjC) 1464 .Case("objc++", InputKind::ObjCXX) 1465 .Default(InputKind::Unknown); 1466 1467 // Some special cases cannot be combined with suffixes. 1468 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1469 DashX = llvm::StringSwitch<InputKind>(XValue) 1470 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1471 .Case("assembler-with-cpp", InputKind::Asm) 1472 .Cases("ast", "pcm", 1473 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1474 .Case("ir", InputKind::LLVM_IR) 1475 .Default(InputKind::Unknown); 1476 1477 if (DashX.isUnknown()) 1478 Diags.Report(diag::err_drv_invalid_value) 1479 << A->getAsString(Args) << A->getValue(); 1480 1481 if (Preprocessed) 1482 DashX = DashX.getPreprocessed(); 1483 if (ModuleMap) 1484 DashX = DashX.withFormat(InputKind::ModuleMap); 1485 } 1486 1487 // '-' is the default input if none is given. 1488 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1489 Opts.Inputs.clear(); 1490 if (Inputs.empty()) 1491 Inputs.push_back("-"); 1492 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1493 InputKind IK = DashX; 1494 if (IK.isUnknown()) { 1495 IK = FrontendOptions::getInputKindForExtension( 1496 StringRef(Inputs[i]).rsplit('.').second); 1497 // FIXME: Warn on this? 1498 if (IK.isUnknown()) 1499 IK = InputKind::C; 1500 // FIXME: Remove this hack. 1501 if (i == 0) 1502 DashX = IK; 1503 } 1504 1505 // The -emit-module action implicitly takes a module map. 1506 if (Opts.ProgramAction == frontend::GenerateModule && 1507 IK.getFormat() == InputKind::Source) 1508 IK = IK.withFormat(InputKind::ModuleMap); 1509 1510 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1511 } 1512 1513 return DashX; 1514 } 1515 1516 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1517 void *MainAddr) { 1518 std::string ClangExecutable = 1519 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1520 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1521 1522 // Compute the path to the resource directory. 1523 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1524 SmallString<128> P(Dir); 1525 if (ClangResourceDir != "") 1526 llvm::sys::path::append(P, ClangResourceDir); 1527 else 1528 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1529 "clang", CLANG_VERSION_STRING); 1530 1531 return P.str(); 1532 } 1533 1534 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1535 const std::string &WorkingDir) { 1536 using namespace options; 1537 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1538 Opts.Verbose = Args.hasArg(OPT_v); 1539 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1540 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1541 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1542 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1543 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1544 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1545 1546 // Canonicalize -fmodules-cache-path before storing it. 1547 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1548 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1549 if (WorkingDir.empty()) 1550 llvm::sys::fs::make_absolute(P); 1551 else 1552 llvm::sys::fs::make_absolute(WorkingDir, P); 1553 } 1554 llvm::sys::path::remove_dots(P); 1555 Opts.ModuleCachePath = P.str(); 1556 1557 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1558 // Only the -fmodule-file=<name>=<file> form. 1559 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1560 StringRef Val = A->getValue(); 1561 if (Val.find('=') != StringRef::npos) 1562 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1563 } 1564 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1565 Opts.AddPrebuiltModulePath(A->getValue()); 1566 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1567 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1568 Opts.ModulesValidateDiagnosticOptions = 1569 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1570 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1571 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1572 Opts.ModuleCachePruneInterval = 1573 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1574 Opts.ModuleCachePruneAfter = 1575 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1576 Opts.ModulesValidateOncePerBuildSession = 1577 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1578 Opts.BuildSessionTimestamp = 1579 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1580 Opts.ModulesValidateSystemHeaders = 1581 Args.hasArg(OPT_fmodules_validate_system_headers); 1582 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1583 Opts.ModuleFormat = A->getValue(); 1584 1585 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1586 StringRef MacroDef = A->getValue(); 1587 Opts.ModulesIgnoreMacros.insert( 1588 llvm::CachedHashString(MacroDef.split('=').first)); 1589 } 1590 1591 // Add -I..., -F..., and -index-header-map options in order. 1592 bool IsIndexHeaderMap = false; 1593 bool IsSysrootSpecified = 1594 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1595 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1596 if (A->getOption().matches(OPT_index_header_map)) { 1597 // -index-header-map applies to the next -I or -F. 1598 IsIndexHeaderMap = true; 1599 continue; 1600 } 1601 1602 frontend::IncludeDirGroup Group = 1603 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1604 1605 bool IsFramework = A->getOption().matches(OPT_F); 1606 std::string Path = A->getValue(); 1607 1608 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1609 SmallString<32> Buffer; 1610 llvm::sys::path::append(Buffer, Opts.Sysroot, 1611 llvm::StringRef(A->getValue()).substr(1)); 1612 Path = Buffer.str(); 1613 } 1614 1615 Opts.AddPath(Path, Group, IsFramework, 1616 /*IgnoreSysroot*/ true); 1617 IsIndexHeaderMap = false; 1618 } 1619 1620 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1621 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1622 for (const Arg *A : 1623 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1624 if (A->getOption().matches(OPT_iprefix)) 1625 Prefix = A->getValue(); 1626 else if (A->getOption().matches(OPT_iwithprefix)) 1627 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1628 else 1629 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1630 } 1631 1632 for (const Arg *A : Args.filtered(OPT_idirafter)) 1633 Opts.AddPath(A->getValue(), frontend::After, false, true); 1634 for (const Arg *A : Args.filtered(OPT_iquote)) 1635 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1636 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1637 Opts.AddPath(A->getValue(), frontend::System, false, 1638 !A->getOption().matches(OPT_iwithsysroot)); 1639 for (const Arg *A : Args.filtered(OPT_iframework)) 1640 Opts.AddPath(A->getValue(), frontend::System, true, true); 1641 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot)) 1642 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1643 /*IgnoreSysRoot=*/false); 1644 1645 // Add the paths for the various language specific isystem flags. 1646 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1647 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1648 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1649 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1650 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1651 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1652 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1653 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1654 1655 // Add the internal paths from a driver that detects standard include paths. 1656 for (const Arg *A : 1657 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1658 frontend::IncludeDirGroup Group = frontend::System; 1659 if (A->getOption().matches(OPT_internal_externc_isystem)) 1660 Group = frontend::ExternCSystem; 1661 Opts.AddPath(A->getValue(), Group, false, true); 1662 } 1663 1664 // Add the path prefixes which are implicitly treated as being system headers. 1665 for (const Arg *A : 1666 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1667 Opts.AddSystemHeaderPrefix( 1668 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1669 1670 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1671 Opts.AddVFSOverlayFile(A->getValue()); 1672 } 1673 1674 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1675 const llvm::Triple &T, 1676 PreprocessorOptions &PPOpts, 1677 LangStandard::Kind LangStd) { 1678 // Set some properties which depend solely on the input kind; it would be nice 1679 // to move these to the language standard, and have the driver resolve the 1680 // input kind + language standard. 1681 // 1682 // FIXME: Perhaps a better model would be for a single source file to have 1683 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 1684 // simultaneously active? 1685 if (IK.getLanguage() == InputKind::Asm) { 1686 Opts.AsmPreprocessor = 1; 1687 } else if (IK.isObjectiveC()) { 1688 Opts.ObjC1 = Opts.ObjC2 = 1; 1689 } 1690 1691 if (LangStd == LangStandard::lang_unspecified) { 1692 // Based on the base language, pick one. 1693 switch (IK.getLanguage()) { 1694 case InputKind::Unknown: 1695 case InputKind::LLVM_IR: 1696 llvm_unreachable("Invalid input kind!"); 1697 case InputKind::OpenCL: 1698 LangStd = LangStandard::lang_opencl10; 1699 break; 1700 case InputKind::CUDA: 1701 LangStd = LangStandard::lang_cuda; 1702 break; 1703 case InputKind::Asm: 1704 case InputKind::C: 1705 // The PS4 uses C99 as the default C standard. 1706 if (T.isPS4()) 1707 LangStd = LangStandard::lang_gnu99; 1708 else 1709 LangStd = LangStandard::lang_gnu11; 1710 break; 1711 case InputKind::ObjC: 1712 LangStd = LangStandard::lang_gnu11; 1713 break; 1714 case InputKind::CXX: 1715 case InputKind::ObjCXX: 1716 // The PS4 uses C++11 as the default C++ standard. 1717 if (T.isPS4()) 1718 LangStd = LangStandard::lang_gnucxx11; 1719 else 1720 LangStd = LangStandard::lang_gnucxx98; 1721 break; 1722 case InputKind::RenderScript: 1723 LangStd = LangStandard::lang_c99; 1724 break; 1725 } 1726 } 1727 1728 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1729 Opts.LineComment = Std.hasLineComments(); 1730 Opts.C99 = Std.isC99(); 1731 Opts.C11 = Std.isC11(); 1732 Opts.CPlusPlus = Std.isCPlusPlus(); 1733 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1734 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1735 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1736 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 1737 Opts.Digraphs = Std.hasDigraphs(); 1738 Opts.GNUMode = Std.isGNUMode(); 1739 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 1740 Opts.HexFloats = Std.hasHexFloats(); 1741 Opts.ImplicitInt = Std.hasImplicitInt(); 1742 1743 // Set OpenCL Version. 1744 Opts.OpenCL = Std.isOpenCL(); 1745 if (LangStd == LangStandard::lang_opencl10) 1746 Opts.OpenCLVersion = 100; 1747 else if (LangStd == LangStandard::lang_opencl11) 1748 Opts.OpenCLVersion = 110; 1749 else if (LangStd == LangStandard::lang_opencl12) 1750 Opts.OpenCLVersion = 120; 1751 else if (LangStd == LangStandard::lang_opencl20) 1752 Opts.OpenCLVersion = 200; 1753 1754 // OpenCL has some additional defaults. 1755 if (Opts.OpenCL) { 1756 Opts.AltiVec = 0; 1757 Opts.ZVector = 0; 1758 Opts.LaxVectorConversions = 0; 1759 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 1760 Opts.NativeHalfType = 1; 1761 Opts.NativeHalfArgsAndReturns = 1; 1762 // Include default header file for OpenCL. 1763 if (Opts.IncludeDefaultHeader) { 1764 PPOpts.Includes.push_back("opencl-c.h"); 1765 } 1766 } 1767 1768 Opts.CUDA = IK.getLanguage() == InputKind::CUDA; 1769 if (Opts.CUDA) 1770 // Set default FP_CONTRACT to FAST. 1771 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 1772 1773 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 1774 if (Opts.RenderScript) { 1775 Opts.NativeHalfType = 1; 1776 Opts.NativeHalfArgsAndReturns = 1; 1777 } 1778 1779 // OpenCL and C++ both have bool, true, false keywords. 1780 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1781 1782 // OpenCL has half keyword 1783 Opts.Half = Opts.OpenCL; 1784 1785 // C++ has wchar_t keyword. 1786 Opts.WChar = Opts.CPlusPlus; 1787 1788 Opts.GNUKeywords = Opts.GNUMode; 1789 Opts.CXXOperatorNames = Opts.CPlusPlus; 1790 1791 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1792 1793 Opts.DollarIdents = !Opts.AsmPreprocessor; 1794 } 1795 1796 /// Attempt to parse a visibility value out of the given argument. 1797 static Visibility parseVisibility(Arg *arg, ArgList &args, 1798 DiagnosticsEngine &diags) { 1799 StringRef value = arg->getValue(); 1800 if (value == "default") { 1801 return DefaultVisibility; 1802 } else if (value == "hidden" || value == "internal") { 1803 return HiddenVisibility; 1804 } else if (value == "protected") { 1805 // FIXME: diagnose if target does not support protected visibility 1806 return ProtectedVisibility; 1807 } 1808 1809 diags.Report(diag::err_drv_invalid_value) 1810 << arg->getAsString(args) << value; 1811 return DefaultVisibility; 1812 } 1813 1814 /// Check if input file kind and language standard are compatible. 1815 static bool IsInputCompatibleWithStandard(InputKind IK, 1816 const LangStandard &S) { 1817 switch (IK.getLanguage()) { 1818 case InputKind::Unknown: 1819 case InputKind::LLVM_IR: 1820 llvm_unreachable("should not parse language flags for this input"); 1821 1822 case InputKind::C: 1823 case InputKind::ObjC: 1824 case InputKind::RenderScript: 1825 return S.getLanguage() == InputKind::C; 1826 1827 case InputKind::OpenCL: 1828 return S.getLanguage() == InputKind::OpenCL; 1829 1830 case InputKind::CXX: 1831 case InputKind::ObjCXX: 1832 return S.getLanguage() == InputKind::CXX; 1833 1834 case InputKind::CUDA: 1835 // FIXME: What -std= values should be permitted for CUDA compilations? 1836 return S.getLanguage() == InputKind::CUDA || 1837 S.getLanguage() == InputKind::CXX; 1838 1839 case InputKind::Asm: 1840 // Accept (and ignore) all -std= values. 1841 // FIXME: The -std= value is not ignored; it affects the tokenization 1842 // and preprocessing rules if we're preprocessing this asm input. 1843 return true; 1844 } 1845 1846 llvm_unreachable("unexpected input language"); 1847 } 1848 1849 /// Get language name for given input kind. 1850 static const StringRef GetInputKindName(InputKind IK) { 1851 switch (IK.getLanguage()) { 1852 case InputKind::C: 1853 return "C"; 1854 case InputKind::ObjC: 1855 return "Objective-C"; 1856 case InputKind::CXX: 1857 return "C++"; 1858 case InputKind::ObjCXX: 1859 return "Objective-C++"; 1860 case InputKind::OpenCL: 1861 return "OpenCL"; 1862 case InputKind::CUDA: 1863 return "CUDA"; 1864 case InputKind::RenderScript: 1865 return "RenderScript"; 1866 1867 case InputKind::Asm: 1868 return "Asm"; 1869 case InputKind::LLVM_IR: 1870 return "LLVM IR"; 1871 1872 case InputKind::Unknown: 1873 break; 1874 } 1875 llvm_unreachable("unknown input language"); 1876 } 1877 1878 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1879 const TargetOptions &TargetOpts, 1880 PreprocessorOptions &PPOpts, 1881 DiagnosticsEngine &Diags) { 1882 // FIXME: Cleanup per-file based stuff. 1883 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1884 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1885 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1886 #define LANGSTANDARD(id, name, lang, desc, features) \ 1887 .Case(name, LangStandard::lang_##id) 1888 #define LANGSTANDARD_ALIAS(id, alias) \ 1889 .Case(alias, LangStandard::lang_##id) 1890 #include "clang/Frontend/LangStandards.def" 1891 .Default(LangStandard::lang_unspecified); 1892 if (LangStd == LangStandard::lang_unspecified) { 1893 Diags.Report(diag::err_drv_invalid_value) 1894 << A->getAsString(Args) << A->getValue(); 1895 // Report supported standards with short description. 1896 for (unsigned KindValue = 0; 1897 KindValue != LangStandard::lang_unspecified; 1898 ++KindValue) { 1899 const LangStandard &Std = LangStandard::getLangStandardForKind( 1900 static_cast<LangStandard::Kind>(KindValue)); 1901 if (IsInputCompatibleWithStandard(IK, Std)) { 1902 auto Diag = Diags.Report(diag::note_drv_use_standard); 1903 Diag << Std.getName() << Std.getDescription(); 1904 unsigned NumAliases = 0; 1905 #define LANGSTANDARD(id, name, lang, desc, features) 1906 #define LANGSTANDARD_ALIAS(id, alias) \ 1907 if (KindValue == LangStandard::lang_##id) ++NumAliases; 1908 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1909 #include "clang/Frontend/LangStandards.def" 1910 Diag << NumAliases; 1911 #define LANGSTANDARD(id, name, lang, desc, features) 1912 #define LANGSTANDARD_ALIAS(id, alias) \ 1913 if (KindValue == LangStandard::lang_##id) Diag << alias; 1914 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1915 #include "clang/Frontend/LangStandards.def" 1916 } 1917 } 1918 } else { 1919 // Valid standard, check to make sure language and standard are 1920 // compatible. 1921 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1922 if (!IsInputCompatibleWithStandard(IK, Std)) { 1923 Diags.Report(diag::err_drv_argument_not_allowed_with) 1924 << A->getAsString(Args) << GetInputKindName(IK); 1925 } 1926 } 1927 } 1928 1929 // -cl-std only applies for OpenCL language standards. 1930 // Override the -std option in this case. 1931 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1932 LangStandard::Kind OpenCLLangStd 1933 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1934 .Cases("cl", "CL", LangStandard::lang_opencl10) 1935 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1936 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1937 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1938 .Default(LangStandard::lang_unspecified); 1939 1940 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1941 Diags.Report(diag::err_drv_invalid_value) 1942 << A->getAsString(Args) << A->getValue(); 1943 } 1944 else 1945 LangStd = OpenCLLangStd; 1946 } 1947 1948 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1949 1950 llvm::Triple T(TargetOpts.Triple); 1951 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1952 1953 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1954 // This option should be deprecated for CL > 1.0 because 1955 // this option was added for compatibility with OpenCL 1.0. 1956 if (Args.getLastArg(OPT_cl_strict_aliasing) 1957 && Opts.OpenCLVersion > 100) { 1958 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1959 std::string(".") + 1960 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1961 Diags.Report(diag::warn_option_invalid_ocl_version) 1962 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1963 } 1964 1965 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1966 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1967 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1968 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1969 // name, as it doesn't seem a useful distinction. 1970 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1971 Opts.GNUKeywords); 1972 1973 if (Args.hasArg(OPT_fno_operator_names)) 1974 Opts.CXXOperatorNames = 0; 1975 1976 if (Args.hasArg(OPT_fcuda_is_device)) 1977 Opts.CUDAIsDevice = 1; 1978 1979 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1980 Opts.CUDAAllowVariadicFunctions = 1; 1981 1982 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1983 Opts.CUDAHostDeviceConstexpr = 0; 1984 1985 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1986 Opts.CUDADeviceFlushDenormalsToZero = 1; 1987 1988 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1989 Opts.CUDADeviceApproxTranscendentals = 1; 1990 1991 if (Opts.ObjC1) { 1992 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1993 StringRef value = arg->getValue(); 1994 if (Opts.ObjCRuntime.tryParse(value)) 1995 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1996 } 1997 1998 if (Args.hasArg(OPT_fobjc_gc_only)) 1999 Opts.setGC(LangOptions::GCOnly); 2000 else if (Args.hasArg(OPT_fobjc_gc)) 2001 Opts.setGC(LangOptions::HybridGC); 2002 else if (Args.hasArg(OPT_fobjc_arc)) { 2003 Opts.ObjCAutoRefCount = 1; 2004 if (!Opts.ObjCRuntime.allowsARC()) 2005 Diags.Report(diag::err_arc_unsupported_on_runtime); 2006 } 2007 2008 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2009 // whether the feature is actually enabled. This is predominantly 2010 // determined by -fobjc-runtime, but we allow it to be overridden 2011 // from the command line for testing purposes. 2012 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2013 Opts.ObjCWeakRuntime = 1; 2014 else 2015 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2016 2017 // ObjCWeak determines whether __weak is actually enabled. 2018 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2019 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2020 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2021 assert(!Opts.ObjCWeak); 2022 } else if (Opts.getGC() != LangOptions::NonGC) { 2023 Diags.Report(diag::err_objc_weak_with_gc); 2024 } else if (!Opts.ObjCWeakRuntime) { 2025 Diags.Report(diag::err_objc_weak_unsupported); 2026 } else { 2027 Opts.ObjCWeak = 1; 2028 } 2029 } else if (Opts.ObjCAutoRefCount) { 2030 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2031 } 2032 2033 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2034 Opts.ObjCInferRelatedResultType = 0; 2035 2036 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2037 Opts.ObjCSubscriptingLegacyRuntime = 2038 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2039 } 2040 2041 if (Args.hasArg(OPT_fgnu89_inline)) { 2042 if (Opts.CPlusPlus) 2043 Diags.Report(diag::err_drv_argument_not_allowed_with) 2044 << "-fgnu89-inline" << GetInputKindName(IK); 2045 else 2046 Opts.GNUInline = 1; 2047 } 2048 2049 if (Args.hasArg(OPT_fapple_kext)) { 2050 if (!Opts.CPlusPlus) 2051 Diags.Report(diag::warn_c_kext); 2052 else 2053 Opts.AppleKext = 1; 2054 } 2055 2056 if (Args.hasArg(OPT_print_ivar_layout)) 2057 Opts.ObjCGCBitmapPrint = 1; 2058 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2059 Opts.NoConstantCFStrings = 1; 2060 2061 if (Args.hasArg(OPT_fzvector)) 2062 Opts.ZVector = 1; 2063 2064 if (Args.hasArg(OPT_pthread)) 2065 Opts.POSIXThreads = 1; 2066 2067 // The value-visibility mode defaults to "default". 2068 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2069 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2070 } else { 2071 Opts.setValueVisibilityMode(DefaultVisibility); 2072 } 2073 2074 // The type-visibility mode defaults to the value-visibility mode. 2075 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2076 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2077 } else { 2078 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2079 } 2080 2081 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2082 Opts.InlineVisibilityHidden = 1; 2083 2084 if (Args.hasArg(OPT_ftrapv)) { 2085 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2086 // Set the handler, if one is specified. 2087 Opts.OverflowHandler = 2088 Args.getLastArgValue(OPT_ftrapv_handler); 2089 } 2090 else if (Args.hasArg(OPT_fwrapv)) 2091 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2092 2093 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2094 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2095 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2096 Opts.MSCompatibilityVersion = 0; 2097 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2098 VersionTuple VT; 2099 if (VT.tryParse(A->getValue())) 2100 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2101 << A->getValue(); 2102 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2103 VT.getMinor().getValueOr(0) * 100000 + 2104 VT.getSubminor().getValueOr(0); 2105 } 2106 2107 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 2108 // is specified, or -std is set to a conforming mode. 2109 // Trigraphs are disabled by default in c++1z onwards. 2110 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 2111 Opts.Trigraphs = 2112 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2113 2114 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2115 OPT_fno_dollars_in_identifiers, 2116 Opts.DollarIdents); 2117 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2118 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2119 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2120 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2121 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2122 Opts.ConstStrings); 2123 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2124 Opts.LaxVectorConversions = 0; 2125 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2126 Opts.ThreadsafeStatics = 0; 2127 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2128 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2129 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2130 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 2131 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2132 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2133 2134 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2135 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2136 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2137 && Opts.OpenCLVersion >= 200); 2138 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2139 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2140 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2141 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2142 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2143 Opts.ModulesDeclUse = 2144 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2145 Opts.ModulesLocalVisibility = 2146 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2147 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2148 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2149 Opts.ModulesSearchAll = Opts.Modules && 2150 !Args.hasArg(OPT_fno_modules_search_all) && 2151 Args.hasArg(OPT_fmodules_search_all); 2152 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2153 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2154 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2155 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2156 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 2157 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2158 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2159 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2160 if (!Opts.NoBuiltin) 2161 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2162 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2163 Opts.RelaxedTemplateTemplateArgs = 2164 Args.hasArg(OPT_frelaxed_template_template_args); 2165 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2166 Opts.AlignedAllocation = 2167 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2168 Opts.AlignedAllocation); 2169 Opts.AlignedAllocationUnavailable = 2170 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2171 Opts.NewAlignOverride = 2172 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2173 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2174 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2175 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2176 << A->getValue(); 2177 Opts.NewAlignOverride = 0; 2178 } 2179 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2180 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2181 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2182 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2183 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2184 Opts.InstantiationDepth = 2185 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2186 Opts.ArrowDepth = 2187 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2188 Opts.ConstexprCallDepth = 2189 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2190 Opts.ConstexprStepLimit = 2191 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2192 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2193 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2194 Opts.NumLargeByValueCopy = 2195 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2196 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2197 Opts.ObjCConstantStringClass = 2198 Args.getLastArgValue(OPT_fconstant_string_class); 2199 Opts.ObjCDefaultSynthProperties = 2200 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2201 Opts.EncodeExtendedBlockSig = 2202 Args.hasArg(OPT_fencode_extended_block_signature); 2203 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2204 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2205 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2206 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2207 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2208 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2209 Opts.Static = Args.hasArg(OPT_static_define); 2210 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2211 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2212 || Args.hasArg(OPT_fdump_record_layouts); 2213 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2214 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2215 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2216 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2217 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2218 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2219 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2220 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2221 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2222 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2223 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2224 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2225 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2226 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2227 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2228 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2229 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2230 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2231 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2232 // is enabled. 2233 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2234 | Opts.NativeHalfArgsAndReturns; 2235 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2236 2237 // __declspec is enabled by default for the PS4 by the driver, and also 2238 // enabled for Microsoft Extensions or Borland Extensions, here. 2239 // 2240 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2241 // CUDA extension. However, it is required for supporting 2242 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2243 // been rewritten in terms of something more generic, remove the Opts.CUDA 2244 // term here. 2245 Opts.DeclSpecKeyword = 2246 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2247 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2248 2249 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2250 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2251 .Case("target", LangOptions::ASMM_Target) 2252 .Case("no", LangOptions::ASMM_Off) 2253 .Case("yes", LangOptions::ASMM_On) 2254 .Default(255)) { 2255 default: 2256 Diags.Report(diag::err_drv_invalid_value) 2257 << "-faddress-space-map-mangling=" << A->getValue(); 2258 break; 2259 case LangOptions::ASMM_Target: 2260 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2261 break; 2262 case LangOptions::ASMM_On: 2263 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2264 break; 2265 case LangOptions::ASMM_Off: 2266 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2267 break; 2268 } 2269 } 2270 2271 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2272 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2273 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2274 A->getValue()) 2275 .Case("single", 2276 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2277 .Case("multiple", 2278 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2279 .Case("virtual", 2280 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2281 .Default(LangOptions::PPTMK_BestCase); 2282 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2283 Diags.Report(diag::err_drv_invalid_value) 2284 << "-fms-memptr-rep=" << A->getValue(); 2285 2286 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2287 } 2288 2289 // Check for MS default calling conventions being specified. 2290 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2291 LangOptions::DefaultCallingConvention DefaultCC = 2292 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2293 A->getValue()) 2294 .Case("cdecl", LangOptions::DCC_CDecl) 2295 .Case("fastcall", LangOptions::DCC_FastCall) 2296 .Case("stdcall", LangOptions::DCC_StdCall) 2297 .Case("vectorcall", LangOptions::DCC_VectorCall) 2298 .Default(LangOptions::DCC_None); 2299 if (DefaultCC == LangOptions::DCC_None) 2300 Diags.Report(diag::err_drv_invalid_value) 2301 << "-fdefault-calling-conv=" << A->getValue(); 2302 2303 llvm::Triple T(TargetOpts.Triple); 2304 llvm::Triple::ArchType Arch = T.getArch(); 2305 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2306 DefaultCC == LangOptions::DCC_StdCall) && 2307 Arch != llvm::Triple::x86; 2308 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2309 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2310 if (emitError) 2311 Diags.Report(diag::err_drv_argument_not_allowed_with) 2312 << A->getSpelling() << T.getTriple(); 2313 else 2314 Opts.setDefaultCallingConv(DefaultCC); 2315 } 2316 2317 // -mrtd option 2318 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2319 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2320 Diags.Report(diag::err_drv_argument_not_allowed_with) 2321 << A->getSpelling() << "-fdefault-calling-conv"; 2322 else { 2323 llvm::Triple T(TargetOpts.Triple); 2324 if (T.getArch() != llvm::Triple::x86) 2325 Diags.Report(diag::err_drv_argument_not_allowed_with) 2326 << A->getSpelling() << T.getTriple(); 2327 else 2328 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2329 } 2330 } 2331 2332 // Check if -fopenmp is specified. 2333 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2334 Opts.OpenMPUseTLS = 2335 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2336 Opts.OpenMPIsDevice = 2337 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2338 2339 if (Opts.OpenMP) { 2340 int Version = 2341 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2342 if (Version != 0) 2343 Opts.OpenMP = Version; 2344 // Provide diagnostic when a given target is not expected to be an OpenMP 2345 // device or host. 2346 if (!Opts.OpenMPIsDevice) { 2347 switch (T.getArch()) { 2348 default: 2349 break; 2350 // Add unsupported host targets here: 2351 case llvm::Triple::nvptx: 2352 case llvm::Triple::nvptx64: 2353 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2354 << TargetOpts.Triple; 2355 break; 2356 } 2357 } 2358 } 2359 2360 // Set the flag to prevent the implementation from emitting device exception 2361 // handling code for those requiring so. 2362 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2363 Opts.Exceptions = 0; 2364 Opts.CXXExceptions = 0; 2365 } 2366 2367 // Get the OpenMP target triples if any. 2368 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2369 2370 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2371 llvm::Triple TT(A->getValue(i)); 2372 2373 if (TT.getArch() == llvm::Triple::UnknownArch || 2374 !(TT.getArch() == llvm::Triple::ppc || 2375 TT.getArch() == llvm::Triple::ppc64 || 2376 TT.getArch() == llvm::Triple::ppc64le || 2377 TT.getArch() == llvm::Triple::nvptx || 2378 TT.getArch() == llvm::Triple::nvptx64 || 2379 TT.getArch() == llvm::Triple::x86 || 2380 TT.getArch() == llvm::Triple::x86_64)) 2381 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2382 else 2383 Opts.OMPTargetTriples.push_back(TT); 2384 } 2385 } 2386 2387 // Get OpenMP host file path if any and report if a non existent file is 2388 // found 2389 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2390 Opts.OMPHostIRFile = A->getValue(); 2391 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2392 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2393 << Opts.OMPHostIRFile; 2394 } 2395 2396 // Record whether the __DEPRECATED define was requested. 2397 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2398 OPT_fno_deprecated_macro, 2399 Opts.Deprecated); 2400 2401 // FIXME: Eliminate this dependency. 2402 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2403 OptSize = getOptimizationLevelSize(Args); 2404 Opts.Optimize = Opt != 0; 2405 Opts.OptimizeSize = OptSize != 0; 2406 2407 // This is the __NO_INLINE__ define, which just depends on things like the 2408 // optimization level and -fno-inline, not actually whether the backend has 2409 // inlining enabled. 2410 Opts.NoInlineDefine = !Opts.Optimize; 2411 if (Arg *InlineArg = Args.getLastArg( 2412 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2413 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2414 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2415 Opts.NoInlineDefine = true; 2416 2417 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2418 Args.hasArg(OPT_cl_fast_relaxed_math); 2419 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2420 Args.hasArg(OPT_cl_finite_math_only) || 2421 Args.hasArg(OPT_cl_fast_relaxed_math); 2422 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2423 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2424 Args.hasArg(OPT_cl_fast_relaxed_math); 2425 2426 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2427 StringRef Val = A->getValue(); 2428 if (Val == "fast") 2429 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2430 else if (Val == "on") 2431 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2432 else if (Val == "off") 2433 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2434 else 2435 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2436 } 2437 2438 Opts.RetainCommentsFromSystemHeaders = 2439 Args.hasArg(OPT_fretain_comments_from_system_headers); 2440 2441 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2442 switch (SSP) { 2443 default: 2444 Diags.Report(diag::err_drv_invalid_value) 2445 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2446 break; 2447 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2448 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2449 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2450 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2451 } 2452 2453 // Parse -fsanitize= arguments. 2454 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2455 Diags, Opts.Sanitize); 2456 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2457 Opts.SanitizeAddressFieldPadding = 2458 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2459 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2460 2461 // -fxray-instrument 2462 Opts.XRayInstrument = 2463 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2464 2465 // -fxray-{always,never}-instrument= filenames. 2466 Opts.XRayAlwaysInstrumentFiles = 2467 Args.getAllArgValues(OPT_fxray_always_instrument); 2468 Opts.XRayNeverInstrumentFiles = 2469 Args.getAllArgValues(OPT_fxray_never_instrument); 2470 2471 // -fallow-editor-placeholders 2472 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2473 } 2474 2475 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 2476 switch (Action) { 2477 case frontend::ASTDeclList: 2478 case frontend::ASTDump: 2479 case frontend::ASTPrint: 2480 case frontend::ASTView: 2481 case frontend::EmitAssembly: 2482 case frontend::EmitBC: 2483 case frontend::EmitHTML: 2484 case frontend::EmitLLVM: 2485 case frontend::EmitLLVMOnly: 2486 case frontend::EmitCodeGenOnly: 2487 case frontend::EmitObj: 2488 case frontend::FixIt: 2489 case frontend::GenerateModule: 2490 case frontend::GenerateModuleInterface: 2491 case frontend::GeneratePCH: 2492 case frontend::GeneratePTH: 2493 case frontend::ParseSyntaxOnly: 2494 case frontend::ModuleFileInfo: 2495 case frontend::VerifyPCH: 2496 case frontend::PluginAction: 2497 case frontend::PrintDeclContext: 2498 case frontend::RewriteObjC: 2499 case frontend::RewriteTest: 2500 case frontend::RunAnalysis: 2501 case frontend::MigrateSource: 2502 return false; 2503 2504 case frontend::DumpRawTokens: 2505 case frontend::DumpTokens: 2506 case frontend::InitOnly: 2507 case frontend::PrintPreamble: 2508 case frontend::PrintPreprocessedInput: 2509 case frontend::RewriteMacros: 2510 case frontend::RunPreprocessorOnly: 2511 return true; 2512 } 2513 llvm_unreachable("invalid frontend action"); 2514 } 2515 2516 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2517 FileManager &FileMgr, 2518 DiagnosticsEngine &Diags, 2519 frontend::ActionKind Action) { 2520 using namespace options; 2521 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2522 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2523 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2524 Opts.TokenCache = A->getValue(); 2525 else 2526 Opts.TokenCache = Opts.ImplicitPTHInclude; 2527 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2528 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2529 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2530 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 2531 2532 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2533 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2534 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2535 2536 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2537 StringRef Value(A->getValue()); 2538 size_t Comma = Value.find(','); 2539 unsigned Bytes = 0; 2540 unsigned EndOfLine = 0; 2541 2542 if (Comma == StringRef::npos || 2543 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2544 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2545 Diags.Report(diag::err_drv_preamble_format); 2546 else { 2547 Opts.PrecompiledPreambleBytes.first = Bytes; 2548 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2549 } 2550 } 2551 2552 // Add macros from the command line. 2553 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2554 if (A->getOption().matches(OPT_D)) 2555 Opts.addMacroDef(A->getValue()); 2556 else 2557 Opts.addMacroUndef(A->getValue()); 2558 } 2559 2560 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2561 2562 // Add the ordered list of -includes. 2563 for (const Arg *A : Args.filtered(OPT_include)) 2564 Opts.Includes.emplace_back(A->getValue()); 2565 2566 for (const Arg *A : Args.filtered(OPT_chain_include)) 2567 Opts.ChainedIncludes.emplace_back(A->getValue()); 2568 2569 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2570 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2571 2572 if (Split.second.empty()) { 2573 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2574 continue; 2575 } 2576 2577 Opts.addRemappedFile(Split.first, Split.second); 2578 } 2579 2580 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2581 StringRef Name = A->getValue(); 2582 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2583 .Case("libc++", ARCXX_libcxx) 2584 .Case("libstdc++", ARCXX_libstdcxx) 2585 .Case("none", ARCXX_nolib) 2586 .Default(~0U); 2587 if (Library == ~0U) 2588 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2589 else 2590 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2591 } 2592 2593 // Always avoid lexing editor placeholders when we're just running the 2594 // preprocessor as we never want to emit the 2595 // "editor placeholder in source file" error in PP only mode. 2596 if (isStrictlyPreprocessorAction(Action)) 2597 Opts.LexEditorPlaceholders = false; 2598 } 2599 2600 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2601 ArgList &Args, 2602 frontend::ActionKind Action) { 2603 using namespace options; 2604 2605 if (isStrictlyPreprocessorAction(Action)) 2606 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2607 else 2608 Opts.ShowCPP = 0; 2609 2610 Opts.ShowComments = Args.hasArg(OPT_C); 2611 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2612 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2613 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2614 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2615 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2616 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 2617 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2618 } 2619 2620 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2621 DiagnosticsEngine &Diags) { 2622 using namespace options; 2623 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2624 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2625 StringRef Value = A->getValue(); 2626 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2627 .Case("default", llvm::EABI::Default) 2628 .Case("4", llvm::EABI::EABI4) 2629 .Case("5", llvm::EABI::EABI5) 2630 .Case("gnu", llvm::EABI::GNU) 2631 .Default(llvm::EABI::Unknown); 2632 if (EABIVersion == llvm::EABI::Unknown) 2633 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2634 << Value; 2635 else 2636 Opts.EABIVersion = EABIVersion; 2637 } 2638 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2639 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2640 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2641 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2642 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2643 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2644 // Use the default target triple if unspecified. 2645 if (Opts.Triple.empty()) 2646 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2647 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2648 } 2649 2650 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2651 const char *const *ArgBegin, 2652 const char *const *ArgEnd, 2653 DiagnosticsEngine &Diags) { 2654 bool Success = true; 2655 2656 // Parse the arguments. 2657 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2658 const unsigned IncludedFlagsBitmask = options::CC1Option; 2659 unsigned MissingArgIndex, MissingArgCount; 2660 InputArgList Args = 2661 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2662 MissingArgCount, IncludedFlagsBitmask); 2663 LangOptions &LangOpts = *Res.getLangOpts(); 2664 2665 // Check for missing argument error. 2666 if (MissingArgCount) { 2667 Diags.Report(diag::err_drv_missing_argument) 2668 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2669 Success = false; 2670 } 2671 2672 // Issue errors on unknown arguments. 2673 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2674 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2675 Success = false; 2676 } 2677 2678 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2679 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2680 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2681 Success &= 2682 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2683 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2684 ParseCommentArgs(LangOpts.CommentOpts, Args); 2685 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2686 // FIXME: We shouldn't have to pass the DashX option around here 2687 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2688 LangOpts.IsHeaderFile); 2689 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2690 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2691 Res.getTargetOpts()); 2692 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2693 Res.getFileSystemOpts().WorkingDir); 2694 if (DashX.getFormat() == InputKind::Precompiled || 2695 DashX.getLanguage() == InputKind::LLVM_IR) { 2696 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2697 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2698 // what the input type is. 2699 if (Args.hasArg(OPT_fobjc_arc)) 2700 LangOpts.ObjCAutoRefCount = 1; 2701 // PIClevel and PIELevel are needed during code generation and this should be 2702 // set regardless of the input type. 2703 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2704 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2705 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2706 Diags, LangOpts.Sanitize); 2707 } else { 2708 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2709 // FIXME: Should we really be calling this for an InputKind::Asm input? 2710 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2711 Res.getPreprocessorOpts(), Diags); 2712 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2713 LangOpts.ObjCExceptions = 1; 2714 } 2715 2716 if (LangOpts.CUDA) { 2717 // During CUDA device-side compilation, the aux triple is the 2718 // triple used for host compilation. 2719 if (LangOpts.CUDAIsDevice) 2720 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2721 } 2722 2723 // Set the triple of the host for OpenMP device compile. 2724 if (LangOpts.OpenMPIsDevice) 2725 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2726 2727 // FIXME: Override value name discarding when asan or msan is used because the 2728 // backend passes depend on the name of the alloca in order to print out 2729 // names. 2730 Res.getCodeGenOpts().DiscardValueNames &= 2731 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2732 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2733 2734 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2735 // PCH file and find the original header name. Remove the need to do that in 2736 // ParsePreprocessorArgs and remove the FileManager 2737 // parameters from the function and the "FileManager.h" #include. 2738 FileManager FileMgr(Res.getFileSystemOpts()); 2739 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags, 2740 Res.getFrontendOpts().ProgramAction); 2741 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2742 Res.getFrontendOpts().ProgramAction); 2743 2744 // Turn on -Wspir-compat for SPIR target. 2745 llvm::Triple T(Res.getTargetOpts().Triple); 2746 auto Arch = T.getArch(); 2747 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2748 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2749 } 2750 return Success; 2751 } 2752 2753 std::string CompilerInvocation::getModuleHash() const { 2754 // Note: For QoI reasons, the things we use as a hash here should all be 2755 // dumped via the -module-info flag. 2756 using llvm::hash_code; 2757 using llvm::hash_value; 2758 using llvm::hash_combine; 2759 2760 // Start the signature with the compiler version. 2761 // FIXME: We'd rather use something more cryptographically sound than 2762 // CityHash, but this will do for now. 2763 hash_code code = hash_value(getClangFullRepositoryVersion()); 2764 2765 // Extend the signature with the language options 2766 #define LANGOPT(Name, Bits, Default, Description) \ 2767 code = hash_combine(code, LangOpts->Name); 2768 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2769 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2770 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2771 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2772 #include "clang/Basic/LangOptions.def" 2773 2774 for (StringRef Feature : LangOpts->ModuleFeatures) 2775 code = hash_combine(code, Feature); 2776 2777 // Extend the signature with the target options. 2778 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2779 TargetOpts->ABI); 2780 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2781 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2782 2783 // Extend the signature with preprocessor options. 2784 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2785 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2786 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2787 2788 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2789 I = getPreprocessorOpts().Macros.begin(), 2790 IEnd = getPreprocessorOpts().Macros.end(); 2791 I != IEnd; ++I) { 2792 // If we're supposed to ignore this macro for the purposes of modules, 2793 // don't put it into the hash. 2794 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2795 // Check whether we're ignoring this macro. 2796 StringRef MacroDef = I->first; 2797 if (hsOpts.ModulesIgnoreMacros.count( 2798 llvm::CachedHashString(MacroDef.split('=').first))) 2799 continue; 2800 } 2801 2802 code = hash_combine(code, I->first, I->second); 2803 } 2804 2805 // Extend the signature with the sysroot and other header search options. 2806 code = hash_combine(code, hsOpts.Sysroot, 2807 hsOpts.ModuleFormat, 2808 hsOpts.UseDebugInfo, 2809 hsOpts.UseBuiltinIncludes, 2810 hsOpts.UseStandardSystemIncludes, 2811 hsOpts.UseStandardCXXIncludes, 2812 hsOpts.UseLibcxx, 2813 hsOpts.ModulesValidateDiagnosticOptions); 2814 code = hash_combine(code, hsOpts.ResourceDir); 2815 2816 // Extend the signature with the user build path. 2817 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2818 2819 // Extend the signature with the module file extensions. 2820 const FrontendOptions &frontendOpts = getFrontendOpts(); 2821 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2822 code = ext->hashExtension(code); 2823 } 2824 2825 // Extend the signature with the enabled sanitizers, if at least one is 2826 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 2827 SanitizerSet SanHash = LangOpts->Sanitize; 2828 SanHash.clear(getPPTransparentSanitizers()); 2829 if (!SanHash.empty()) 2830 code = hash_combine(code, SanHash.Mask); 2831 2832 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2833 } 2834 2835 namespace clang { 2836 2837 template<typename IntTy> 2838 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2839 IntTy Default, 2840 DiagnosticsEngine *Diags) { 2841 IntTy Res = Default; 2842 if (Arg *A = Args.getLastArg(Id)) { 2843 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2844 if (Diags) 2845 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2846 << A->getValue(); 2847 } 2848 } 2849 return Res; 2850 } 2851 2852 2853 // Declared in clang/Frontend/Utils.h. 2854 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2855 DiagnosticsEngine *Diags) { 2856 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2857 } 2858 2859 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2860 uint64_t Default, 2861 DiagnosticsEngine *Diags) { 2862 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2863 } 2864 2865 void BuryPointer(const void *Ptr) { 2866 // This function may be called only a small fixed amount of times per each 2867 // invocation, otherwise we do actually have a leak which we want to report. 2868 // If this function is called more than kGraveYardMaxSize times, the pointers 2869 // will not be properly buried and a leak detector will report a leak, which 2870 // is what we want in such case. 2871 static const size_t kGraveYardMaxSize = 16; 2872 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2873 static std::atomic<unsigned> GraveYardSize; 2874 unsigned Idx = GraveYardSize++; 2875 if (Idx >= kGraveYardMaxSize) 2876 return; 2877 GraveYard[Idx] = Ptr; 2878 } 2879 2880 IntrusiveRefCntPtr<vfs::FileSystem> 2881 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2882 DiagnosticsEngine &Diags) { 2883 return createVFSFromCompilerInvocation(CI, Diags, vfs::getRealFileSystem()); 2884 } 2885 2886 IntrusiveRefCntPtr<vfs::FileSystem> 2887 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2888 DiagnosticsEngine &Diags, 2889 IntrusiveRefCntPtr<vfs::FileSystem> BaseFS) { 2890 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2891 return BaseFS; 2892 2893 IntrusiveRefCntPtr<vfs::OverlayFileSystem> Overlay( 2894 new vfs::OverlayFileSystem(BaseFS)); 2895 // earlier vfs files are on the bottom 2896 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2897 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2898 BaseFS->getBufferForFile(File); 2899 if (!Buffer) { 2900 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2901 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2902 } 2903 2904 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2905 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2906 if (!FS.get()) { 2907 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2908 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2909 } 2910 Overlay->pushOverlay(FS); 2911 } 2912 return Overlay; 2913 } 2914 } // end namespace clang 2915