1 //===--- CompilerInvocation.cpp -------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Frontend/CompilerInvocation.h" 11 #include "TestModuleFileExtension.h" 12 #include "clang/Basic/Builtins.h" 13 #include "clang/Basic/FileManager.h" 14 #include "clang/Basic/Version.h" 15 #include "clang/Config/config.h" 16 #include "clang/Driver/DriverDiagnostic.h" 17 #include "clang/Driver/Options.h" 18 #include "clang/Driver/Util.h" 19 #include "clang/Frontend/FrontendDiagnostic.h" 20 #include "clang/Frontend/LangStandard.h" 21 #include "clang/Frontend/Utils.h" 22 #include "clang/Lex/HeaderSearchOptions.h" 23 #include "clang/Lex/PreprocessorOptions.h" 24 #include "clang/Serialization/ASTReader.h" 25 #include "clang/Serialization/ModuleFileExtension.h" 26 #include "llvm/ADT/Hashing.h" 27 #include "llvm/ADT/STLExtras.h" 28 #include "llvm/ADT/SmallVector.h" 29 #include "llvm/ADT/StringExtras.h" 30 #include "llvm/ADT/StringSwitch.h" 31 #include "llvm/ADT/Triple.h" 32 #include "llvm/Linker/Linker.h" 33 #include "llvm/Option/Arg.h" 34 #include "llvm/Option/ArgList.h" 35 #include "llvm/Option/OptTable.h" 36 #include "llvm/Option/Option.h" 37 #include "llvm/ProfileData/InstrProfReader.h" 38 #include "llvm/Support/CodeGen.h" 39 #include "llvm/Support/ErrorHandling.h" 40 #include "llvm/Support/FileSystem.h" 41 #include "llvm/Support/Host.h" 42 #include "llvm/Support/Path.h" 43 #include "llvm/Support/Process.h" 44 #include "llvm/Target/TargetOptions.h" 45 #include "llvm/Support/ScopedPrinter.h" 46 #include <atomic> 47 #include <memory> 48 #include <sys/stat.h> 49 #include <system_error> 50 using namespace clang; 51 52 //===----------------------------------------------------------------------===// 53 // Initialization. 54 //===----------------------------------------------------------------------===// 55 56 CompilerInvocationBase::CompilerInvocationBase() 57 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 58 DiagnosticOpts(new DiagnosticOptions()), 59 HeaderSearchOpts(new HeaderSearchOptions()), 60 PreprocessorOpts(new PreprocessorOptions()) {} 61 62 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 63 : LangOpts(new LangOptions(*X.getLangOpts())), 64 TargetOpts(new TargetOptions(X.getTargetOpts())), 65 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 66 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 67 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 68 69 CompilerInvocationBase::~CompilerInvocationBase() {} 70 71 //===----------------------------------------------------------------------===// 72 // Deserialization (from args) 73 //===----------------------------------------------------------------------===// 74 75 using namespace clang::driver; 76 using namespace clang::driver::options; 77 using namespace llvm::opt; 78 79 // 80 81 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 82 DiagnosticsEngine &Diags) { 83 unsigned DefaultOpt = 0; 84 if (IK.getLanguage() == InputKind::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 85 DefaultOpt = 2; 86 87 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 88 if (A->getOption().matches(options::OPT_O0)) 89 return 0; 90 91 if (A->getOption().matches(options::OPT_Ofast)) 92 return 3; 93 94 assert (A->getOption().matches(options::OPT_O)); 95 96 StringRef S(A->getValue()); 97 if (S == "s" || S == "z" || S.empty()) 98 return 2; 99 100 if (S == "g") 101 return 1; 102 103 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 104 } 105 106 return DefaultOpt; 107 } 108 109 static unsigned getOptimizationLevelSize(ArgList &Args) { 110 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 111 if (A->getOption().matches(options::OPT_O)) { 112 switch (A->getValue()[0]) { 113 default: 114 return 0; 115 case 's': 116 return 1; 117 case 'z': 118 return 2; 119 } 120 } 121 } 122 return 0; 123 } 124 125 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 126 OptSpecifier GroupWithValue, 127 std::vector<std::string> &Diagnostics) { 128 for (Arg *A : Args.filtered(Group)) { 129 if (A->getOption().getKind() == Option::FlagClass) { 130 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 131 // its name (minus the "W" or "R" at the beginning) to the warning list. 132 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 133 } else if (A->getOption().matches(GroupWithValue)) { 134 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 135 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 136 } else { 137 // Otherwise, add its value (for OPT_W_Joined and similar). 138 for (const char *Arg : A->getValues()) 139 Diagnostics.emplace_back(Arg); 140 } 141 } 142 } 143 144 static void getAllNoBuiltinFuncValues(ArgList &Args, 145 std::vector<std::string> &Funcs) { 146 SmallVector<const char *, 8> Values; 147 for (const auto &Arg : Args) { 148 const Option &O = Arg->getOption(); 149 if (O.matches(options::OPT_fno_builtin_)) { 150 const char *FuncName = Arg->getValue(); 151 if (Builtin::Context::isBuiltinFunc(FuncName)) 152 Values.push_back(FuncName); 153 } 154 } 155 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 156 } 157 158 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 159 DiagnosticsEngine &Diags) { 160 using namespace options; 161 bool Success = true; 162 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 163 StringRef Name = A->getValue(); 164 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 165 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 166 .Case(CMDFLAG, NAME##Model) 167 #include "clang/StaticAnalyzer/Core/Analyses.def" 168 .Default(NumStores); 169 if (Value == NumStores) { 170 Diags.Report(diag::err_drv_invalid_value) 171 << A->getAsString(Args) << Name; 172 Success = false; 173 } else { 174 Opts.AnalysisStoreOpt = Value; 175 } 176 } 177 178 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 179 StringRef Name = A->getValue(); 180 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 181 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 182 .Case(CMDFLAG, NAME##Model) 183 #include "clang/StaticAnalyzer/Core/Analyses.def" 184 .Default(NumConstraints); 185 if (Value == NumConstraints) { 186 Diags.Report(diag::err_drv_invalid_value) 187 << A->getAsString(Args) << Name; 188 Success = false; 189 } else { 190 Opts.AnalysisConstraintsOpt = Value; 191 } 192 } 193 194 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 195 StringRef Name = A->getValue(); 196 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 197 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 198 .Case(CMDFLAG, PD_##NAME) 199 #include "clang/StaticAnalyzer/Core/Analyses.def" 200 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 201 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 202 Diags.Report(diag::err_drv_invalid_value) 203 << A->getAsString(Args) << Name; 204 Success = false; 205 } else { 206 Opts.AnalysisDiagOpt = Value; 207 } 208 } 209 210 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 211 StringRef Name = A->getValue(); 212 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 213 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 214 .Case(CMDFLAG, NAME) 215 #include "clang/StaticAnalyzer/Core/Analyses.def" 216 .Default(NumPurgeModes); 217 if (Value == NumPurgeModes) { 218 Diags.Report(diag::err_drv_invalid_value) 219 << A->getAsString(Args) << Name; 220 Success = false; 221 } else { 222 Opts.AnalysisPurgeOpt = Value; 223 } 224 } 225 226 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 227 StringRef Name = A->getValue(); 228 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 229 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 230 .Case(CMDFLAG, NAME) 231 #include "clang/StaticAnalyzer/Core/Analyses.def" 232 .Default(NumInliningModes); 233 if (Value == NumInliningModes) { 234 Diags.Report(diag::err_drv_invalid_value) 235 << A->getAsString(Args) << Name; 236 Success = false; 237 } else { 238 Opts.InliningMode = Value; 239 } 240 } 241 242 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 243 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 244 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 245 246 Opts.visualizeExplodedGraphWithGraphViz = 247 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 248 Opts.visualizeExplodedGraphWithUbiGraph = 249 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 250 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 251 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 252 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 253 Opts.AnalyzeNestedBlocks = 254 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 255 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 256 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 257 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 258 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 259 Opts.maxBlockVisitOnPath = 260 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 261 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 262 Opts.InlineMaxStackDepth = 263 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 264 Opts.InlineMaxStackDepth, Diags); 265 266 Opts.CheckersControlList.clear(); 267 for (const Arg *A : 268 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 269 A->claim(); 270 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 271 // We can have a list of comma separated checker names, e.g: 272 // '-analyzer-checker=cocoa,unix' 273 StringRef checkerList = A->getValue(); 274 SmallVector<StringRef, 4> checkers; 275 checkerList.split(checkers, ","); 276 for (StringRef checker : checkers) 277 Opts.CheckersControlList.emplace_back(checker, enable); 278 } 279 280 // Go through the analyzer configuration options. 281 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 282 A->claim(); 283 // We can have a list of comma separated config names, e.g: 284 // '-analyzer-config key1=val1,key2=val2' 285 StringRef configList = A->getValue(); 286 SmallVector<StringRef, 4> configVals; 287 configList.split(configVals, ","); 288 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 289 StringRef key, val; 290 std::tie(key, val) = configVals[i].split("="); 291 if (val.empty()) { 292 Diags.Report(SourceLocation(), 293 diag::err_analyzer_config_no_value) << configVals[i]; 294 Success = false; 295 break; 296 } 297 if (val.find('=') != StringRef::npos) { 298 Diags.Report(SourceLocation(), 299 diag::err_analyzer_config_multiple_values) 300 << configVals[i]; 301 Success = false; 302 break; 303 } 304 Opts.Config[key] = val; 305 } 306 } 307 308 return Success; 309 } 310 311 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 312 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 313 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 314 return true; 315 } 316 317 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 318 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 319 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 320 } 321 322 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 323 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 324 StringRef Value = A->getValue(); 325 if (Value == "small" || Value == "kernel" || Value == "medium" || 326 Value == "large") 327 return Value; 328 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 329 } 330 return "default"; 331 } 332 333 static StringRef getRelocModel(ArgList &Args, DiagnosticsEngine &Diags) { 334 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 335 StringRef Value = A->getValue(); 336 if (Value == "static" || Value == "pic" || Value == "ropi" || 337 Value == "rwpi" || Value == "ropi-rwpi" || Value == "dynamic-no-pic") 338 return Value; 339 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 340 } 341 return "pic"; 342 } 343 344 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 345 /// It returns a pointer to the newly generated Regex instance. 346 static std::shared_ptr<llvm::Regex> 347 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 348 Arg *RpassArg) { 349 StringRef Val = RpassArg->getValue(); 350 std::string RegexError; 351 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 352 if (!Pattern->isValid(RegexError)) { 353 Diags.Report(diag::err_drv_optimization_remark_pattern) 354 << RegexError << RpassArg->getAsString(Args); 355 Pattern.reset(); 356 } 357 return Pattern; 358 } 359 360 static bool parseDiagnosticLevelMask(StringRef FlagName, 361 const std::vector<std::string> &Levels, 362 DiagnosticsEngine *Diags, 363 DiagnosticLevelMask &M) { 364 bool Success = true; 365 for (const auto &Level : Levels) { 366 DiagnosticLevelMask const PM = 367 llvm::StringSwitch<DiagnosticLevelMask>(Level) 368 .Case("note", DiagnosticLevelMask::Note) 369 .Case("remark", DiagnosticLevelMask::Remark) 370 .Case("warning", DiagnosticLevelMask::Warning) 371 .Case("error", DiagnosticLevelMask::Error) 372 .Default(DiagnosticLevelMask::None); 373 if (PM == DiagnosticLevelMask::None) { 374 Success = false; 375 if (Diags) 376 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 377 } 378 M = M | PM; 379 } 380 return Success; 381 } 382 383 static void parseSanitizerKinds(StringRef FlagName, 384 const std::vector<std::string> &Sanitizers, 385 DiagnosticsEngine &Diags, SanitizerSet &S) { 386 for (const auto &Sanitizer : Sanitizers) { 387 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 388 if (K == 0) 389 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 390 else 391 S.set(K, true); 392 } 393 } 394 395 // Set the profile kind for fprofile-instrument. 396 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 397 DiagnosticsEngine &Diags) { 398 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 399 if (A == nullptr) 400 return; 401 StringRef S = A->getValue(); 402 unsigned I = llvm::StringSwitch<unsigned>(S) 403 .Case("none", CodeGenOptions::ProfileNone) 404 .Case("clang", CodeGenOptions::ProfileClangInstr) 405 .Case("llvm", CodeGenOptions::ProfileIRInstr) 406 .Default(~0U); 407 if (I == ~0U) { 408 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 409 << S; 410 return; 411 } 412 CodeGenOptions::ProfileInstrKind Instrumentor = 413 static_cast<CodeGenOptions::ProfileInstrKind>(I); 414 Opts.setProfileInstr(Instrumentor); 415 } 416 417 // Set the profile kind using fprofile-instrument-use-path. 418 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 419 const Twine &ProfileName) { 420 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 421 // In error, return silently and let Clang PGOUse report the error message. 422 if (auto E = ReaderOrErr.takeError()) { 423 llvm::consumeError(std::move(E)); 424 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 425 return; 426 } 427 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 428 std::move(ReaderOrErr.get()); 429 if (PGOReader->isIRLevelProfile()) 430 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 431 else 432 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 433 } 434 435 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 436 DiagnosticsEngine &Diags, 437 const TargetOptions &TargetOpts) { 438 using namespace options; 439 bool Success = true; 440 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 441 442 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 443 // TODO: This could be done in Driver 444 unsigned MaxOptLevel = 3; 445 if (OptimizationLevel > MaxOptLevel) { 446 // If the optimization level is not supported, fall back on the default 447 // optimization 448 Diags.Report(diag::warn_drv_optimization_value) 449 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 450 OptimizationLevel = MaxOptLevel; 451 } 452 Opts.OptimizationLevel = OptimizationLevel; 453 454 // At O0 we want to fully disable inlining outside of cases marked with 455 // 'alwaysinline' that are required for correctness. 456 Opts.setInlining((Opts.OptimizationLevel == 0) 457 ? CodeGenOptions::OnlyAlwaysInlining 458 : CodeGenOptions::NormalInlining); 459 // Explicit inlining flags can disable some or all inlining even at 460 // optimization levels above zero. 461 if (Arg *InlineArg = Args.getLastArg( 462 options::OPT_finline_functions, options::OPT_finline_hint_functions, 463 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 464 if (Opts.OptimizationLevel > 0) { 465 const Option &InlineOpt = InlineArg->getOption(); 466 if (InlineOpt.matches(options::OPT_finline_functions)) 467 Opts.setInlining(CodeGenOptions::NormalInlining); 468 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 469 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 470 else 471 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 472 } 473 } 474 475 Opts.ExperimentalNewPassManager = Args.hasFlag( 476 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 477 /* Default */ false); 478 479 Opts.DebugPassManager = 480 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 481 /* Default */ false); 482 483 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 484 StringRef Name = A->getValue(); 485 if (Name == "Accelerate") 486 Opts.setVecLib(CodeGenOptions::Accelerate); 487 else if (Name == "SVML") 488 Opts.setVecLib(CodeGenOptions::SVML); 489 else if (Name == "none") 490 Opts.setVecLib(CodeGenOptions::NoLibrary); 491 else 492 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 493 } 494 495 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 496 unsigned Val = 497 llvm::StringSwitch<unsigned>(A->getValue()) 498 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 499 .Case("limited", codegenoptions::LimitedDebugInfo) 500 .Case("standalone", codegenoptions::FullDebugInfo) 501 .Default(~0U); 502 if (Val == ~0U) 503 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 504 << A->getValue(); 505 else 506 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 507 } 508 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 509 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 510 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 511 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 512 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 513 .Default(~0U); 514 if (Val == ~0U) 515 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 516 << A->getValue(); 517 else 518 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 519 } 520 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 521 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 522 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 523 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 524 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 525 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 526 Opts.EnableSplitDwarf = Args.hasArg(OPT_enable_split_dwarf); 527 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 528 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 529 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 530 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 531 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 532 533 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 534 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 535 536 if (const Arg *A = 537 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 538 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 539 540 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 541 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 542 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 543 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 544 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 545 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 546 OPT_fuse_register_sized_bitfield_access); 547 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 548 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 549 Opts.FineGrainedBitfieldAccesses = 550 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 551 OPT_fno_fine_grained_bitfield_accesses, false); 552 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 553 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 554 Opts.NoCommon = Args.hasArg(OPT_fno_common); 555 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 556 Opts.OptimizeSize = getOptimizationLevelSize(Args); 557 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 558 Args.hasArg(OPT_ffreestanding)); 559 if (Opts.SimplifyLibCalls) 560 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 561 Opts.UnrollLoops = 562 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 563 (Opts.OptimizationLevel > 1)); 564 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 565 566 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 567 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 568 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 569 Opts.DebugInfoForProfiling = Args.hasFlag( 570 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 571 Opts.GnuPubnames = Args.hasArg(OPT_ggnu_pubnames); 572 573 setPGOInstrumentor(Opts, Args, Diags); 574 Opts.InstrProfileOutput = 575 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 576 Opts.ProfileInstrumentUsePath = 577 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 578 if (!Opts.ProfileInstrumentUsePath.empty()) 579 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 580 581 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 582 Opts.setClangABICompat(CodeGenOptions::ClangABI::Latest); 583 584 StringRef Ver = A->getValue(); 585 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 586 unsigned Major, Minor = 0; 587 588 // Check the version number is valid: either 3.x (0 <= x <= 9) or 589 // y or y.0 (4 <= y <= current version). 590 if (!VerParts.first.startswith("0") && 591 !VerParts.first.getAsInteger(10, Major) && 592 3 <= Major && Major <= CLANG_VERSION_MAJOR && 593 (Major == 3 ? VerParts.second.size() == 1 && 594 !VerParts.second.getAsInteger(10, Minor) 595 : VerParts.first.size() == Ver.size() || 596 VerParts.second == "0")) { 597 // Got a valid version number. 598 if (Major == 3 && Minor <= 8) 599 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver3_8); 600 else if (Major <= 4) 601 Opts.setClangABICompat(CodeGenOptions::ClangABI::Ver4); 602 } else if (Ver != "latest") { 603 Diags.Report(diag::err_drv_invalid_value) 604 << A->getAsString(Args) << A->getValue(); 605 } 606 } 607 608 Opts.CoverageMapping = 609 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 610 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 611 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 612 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 613 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 614 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 615 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 616 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 617 Opts.CodeModel = getCodeModel(Args, Diags); 618 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 619 Opts.DisableFPElim = 620 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 621 Opts.DisableFree = Args.hasArg(OPT_disable_free); 622 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 623 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 624 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 625 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 626 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 627 Args.hasArg(OPT_cl_fast_relaxed_math); 628 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 629 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 630 Args.hasArg(OPT_cl_finite_math_only) || 631 Args.hasArg(OPT_cl_fast_relaxed_math)); 632 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 633 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 634 Args.hasArg(OPT_cl_finite_math_only) || 635 Args.hasArg(OPT_cl_fast_relaxed_math)); 636 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 637 Args.hasArg(OPT_cl_no_signed_zeros) || 638 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 639 Args.hasArg(OPT_cl_fast_relaxed_math)); 640 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 641 Opts.CorrectlyRoundedDivSqrt = 642 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 643 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 644 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 645 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 646 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 647 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 648 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 649 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 650 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 651 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 652 Opts.IncrementalLinkerCompatible = 653 Args.hasArg(OPT_mincremental_linker_compatible); 654 Opts.PIECopyRelocations = 655 Args.hasArg(OPT_mpie_copy_relocations); 656 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 657 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 658 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 659 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 660 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 661 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 662 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 663 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 664 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 665 Args.hasArg(OPT_cl_fast_relaxed_math); 666 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 667 Opts.RelocationModel = getRelocModel(Args, Diags); 668 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 669 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 670 Diags.Report(diag::err_drv_invalid_value) 671 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 672 << Opts.ThreadModel; 673 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 674 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 675 676 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 677 OPT_fno_function_sections, false); 678 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 679 OPT_fno_data_sections, false); 680 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 681 OPT_fno_unique_section_names, true); 682 683 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 684 685 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 686 687 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 688 689 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 690 Opts.EmitSummaryIndex = false; 691 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 692 StringRef S = A->getValue(); 693 if (S == "thin") 694 Opts.EmitSummaryIndex = true; 695 else if (S != "full") 696 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 697 } 698 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 699 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 700 if (IK.getLanguage() != InputKind::LLVM_IR) 701 Diags.Report(diag::err_drv_argument_only_allowed_with) 702 << A->getAsString(Args) << "-x ir"; 703 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 704 } 705 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 706 707 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 708 709 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 710 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 711 712 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 713 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 714 715 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 716 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 717 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 718 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 719 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 720 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 721 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 722 Opts.CoverageNoFunctionNamesInData = 723 Args.hasArg(OPT_coverage_no_function_names_in_data); 724 Opts.CoverageExitBlockBeforeBody = 725 Args.hasArg(OPT_coverage_exit_block_before_body); 726 if (Args.hasArg(OPT_coverage_version_EQ)) { 727 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 728 if (CoverageVersion.size() != 4) { 729 Diags.Report(diag::err_drv_invalid_value) 730 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 731 << CoverageVersion; 732 } else { 733 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 734 } 735 } 736 } 737 // Handle -fembed-bitcode option. 738 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 739 StringRef Name = A->getValue(); 740 unsigned Model = llvm::StringSwitch<unsigned>(Name) 741 .Case("off", CodeGenOptions::Embed_Off) 742 .Case("all", CodeGenOptions::Embed_All) 743 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 744 .Case("marker", CodeGenOptions::Embed_Marker) 745 .Default(~0U); 746 if (Model == ~0U) { 747 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 748 Success = false; 749 } else 750 Opts.setEmbedBitcode( 751 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 752 } 753 // FIXME: For backend options that are not yet recorded as function 754 // attributes in the IR, keep track of them so we can embed them in a 755 // separate data section and use them when building the bitcode. 756 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 757 for (const auto &A : Args) { 758 // Do not encode output and input. 759 if (A->getOption().getID() == options::OPT_o || 760 A->getOption().getID() == options::OPT_INPUT || 761 A->getOption().getID() == options::OPT_x || 762 A->getOption().getID() == options::OPT_fembed_bitcode || 763 (A->getOption().getGroup().isValid() && 764 A->getOption().getGroup().getID() == options::OPT_W_Group)) 765 continue; 766 ArgStringList ASL; 767 A->render(Args, ASL); 768 for (const auto &arg : ASL) { 769 StringRef ArgStr(arg); 770 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 771 // using \00 to seperate each commandline options. 772 Opts.CmdArgs.push_back('\0'); 773 } 774 } 775 } 776 777 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 778 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 779 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 780 Opts.XRayInstructionThreshold = 781 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 782 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 783 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 784 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 785 786 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 787 OPT_compress_debug_sections_EQ)) { 788 if (A->getOption().getID() == OPT_compress_debug_sections) { 789 // TODO: be more clever about the compression type auto-detection 790 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 791 } else { 792 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 793 .Case("none", llvm::DebugCompressionType::None) 794 .Case("zlib", llvm::DebugCompressionType::Z) 795 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 796 .Default(llvm::DebugCompressionType::None); 797 Opts.setCompressDebugSections(DCT); 798 } 799 } 800 801 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 802 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 803 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 804 CodeGenOptions::BitcodeFileToLink F; 805 F.Filename = A->getValue(); 806 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) { 807 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 808 // When linking CUDA bitcode, propagate function attributes so that 809 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 810 F.PropagateAttrs = true; 811 F.Internalize = true; 812 } 813 Opts.LinkBitcodeFiles.push_back(F); 814 } 815 Opts.SanitizeCoverageType = 816 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 817 Opts.SanitizeCoverageIndirectCalls = 818 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 819 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 820 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 821 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 822 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 823 Opts.SanitizeCoverage8bitCounters = 824 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 825 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 826 Opts.SanitizeCoverageTracePCGuard = 827 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 828 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 829 Opts.SanitizeCoverageInline8bitCounters = 830 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 831 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 832 Opts.SanitizeCoverageStackDepth = 833 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 834 Opts.SanitizeMemoryTrackOrigins = 835 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 836 Opts.SanitizeMemoryUseAfterDtor = 837 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 838 OPT_fno_sanitize_memory_use_after_dtor, 839 false); 840 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 841 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 842 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 843 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 844 OPT_fno_sanitize_address_use_after_scope)) { 845 Opts.SanitizeAddressUseAfterScope = 846 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 847 } 848 Opts.SanitizeAddressGlobalsDeadStripping = 849 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 850 Opts.SSPBufferSize = 851 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 852 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 853 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 854 StringRef Val = A->getValue(); 855 unsigned StackAlignment = Opts.StackAlignment; 856 Val.getAsInteger(10, StackAlignment); 857 Opts.StackAlignment = StackAlignment; 858 } 859 860 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 861 StringRef Val = A->getValue(); 862 unsigned StackProbeSize = Opts.StackProbeSize; 863 Val.getAsInteger(0, StackProbeSize); 864 Opts.StackProbeSize = StackProbeSize; 865 } 866 867 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 868 StringRef Name = A->getValue(); 869 unsigned Method = llvm::StringSwitch<unsigned>(Name) 870 .Case("legacy", CodeGenOptions::Legacy) 871 .Case("non-legacy", CodeGenOptions::NonLegacy) 872 .Case("mixed", CodeGenOptions::Mixed) 873 .Default(~0U); 874 if (Method == ~0U) { 875 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 876 Success = false; 877 } else { 878 Opts.setObjCDispatchMethod( 879 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 880 } 881 } 882 883 Opts.EmulatedTLS = 884 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 885 886 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 887 StringRef Name = A->getValue(); 888 unsigned Model = llvm::StringSwitch<unsigned>(Name) 889 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 890 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 891 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 892 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 893 .Default(~0U); 894 if (Model == ~0U) { 895 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 896 Success = false; 897 } else { 898 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 899 } 900 } 901 902 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 903 StringRef Val = A->getValue(); 904 if (Val == "ieee") 905 Opts.FPDenormalMode = "ieee"; 906 else if (Val == "preserve-sign") 907 Opts.FPDenormalMode = "preserve-sign"; 908 else if (Val == "positive-zero") 909 Opts.FPDenormalMode = "positive-zero"; 910 else 911 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 912 } 913 914 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 915 if (A->getOption().matches(OPT_fpcc_struct_return)) { 916 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 917 } else { 918 assert(A->getOption().matches(OPT_freg_struct_return)); 919 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 920 } 921 } 922 923 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 924 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 925 bool NeedLocTracking = false; 926 927 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 928 if (!Opts.OptRecordFile.empty()) 929 NeedLocTracking = true; 930 931 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 932 Opts.OptimizationRemarkPattern = 933 GenerateOptimizationRemarkRegex(Diags, Args, A); 934 NeedLocTracking = true; 935 } 936 937 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 938 Opts.OptimizationRemarkMissedPattern = 939 GenerateOptimizationRemarkRegex(Diags, Args, A); 940 NeedLocTracking = true; 941 } 942 943 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 944 Opts.OptimizationRemarkAnalysisPattern = 945 GenerateOptimizationRemarkRegex(Diags, Args, A); 946 NeedLocTracking = true; 947 } 948 949 Opts.DiagnosticsWithHotness = 950 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 951 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 952 bool UsingProfile = UsingSampleProfile || 953 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 954 955 if (Opts.DiagnosticsWithHotness && !UsingProfile) 956 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 957 << "-fdiagnostics-show-hotness"; 958 959 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 960 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 961 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 962 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 963 << "-fdiagnostics-hotness-threshold="; 964 965 // If the user requested to use a sample profile for PGO, then the 966 // backend will need to track source location information so the profile 967 // can be incorporated into the IR. 968 if (UsingSampleProfile) 969 NeedLocTracking = true; 970 971 // If the user requested a flag that requires source locations available in 972 // the backend, make sure that the backend tracks source location information. 973 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 974 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 975 976 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 977 978 // Parse -fsanitize-recover= arguments. 979 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 980 parseSanitizerKinds("-fsanitize-recover=", 981 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 982 Opts.SanitizeRecover); 983 parseSanitizerKinds("-fsanitize-trap=", 984 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 985 Opts.SanitizeTrap); 986 987 Opts.CudaGpuBinaryFileNames = 988 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 989 990 Opts.Backchain = Args.hasArg(OPT_mbackchain); 991 992 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 993 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 994 995 return Success; 996 } 997 998 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 999 ArgList &Args) { 1000 using namespace options; 1001 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1002 Opts.Targets = Args.getAllArgValues(OPT_MT); 1003 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1004 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1005 Opts.CanonicalSystemHeaders = !Args.hasArg(OPT_fno_canonical_system_headers); 1006 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1007 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1008 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1009 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1010 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 1011 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1012 Opts.ModuleDependencyOutputDir = 1013 Args.getLastArgValue(OPT_module_dependency_dir); 1014 if (Args.hasArg(OPT_MV)) 1015 Opts.OutputFormat = DependencyOutputFormat::NMake; 1016 // Add sanitizer blacklists as extra dependencies. 1017 // They won't be discovered by the regular preprocessor, so 1018 // we let make / ninja to know about this implicit dependency. 1019 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1020 // Only the -fmodule-file=<file> form. 1021 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1022 StringRef Val = A->getValue(); 1023 if (Val.find('=') == StringRef::npos) 1024 Opts.ExtraDeps.push_back(Val); 1025 } 1026 } 1027 1028 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1029 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1030 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1031 // Support both clang's -f[no-]color-diagnostics and gcc's 1032 // -f[no-]diagnostics-colors[=never|always|auto]. 1033 enum { 1034 Colors_On, 1035 Colors_Off, 1036 Colors_Auto 1037 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1038 for (Arg *A : Args) { 1039 const Option &O = A->getOption(); 1040 if (O.matches(options::OPT_fcolor_diagnostics) || 1041 O.matches(options::OPT_fdiagnostics_color)) { 1042 ShowColors = Colors_On; 1043 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1044 O.matches(options::OPT_fno_diagnostics_color)) { 1045 ShowColors = Colors_Off; 1046 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1047 StringRef Value(A->getValue()); 1048 if (Value == "always") 1049 ShowColors = Colors_On; 1050 else if (Value == "never") 1051 ShowColors = Colors_Off; 1052 else if (Value == "auto") 1053 ShowColors = Colors_Auto; 1054 } 1055 } 1056 return ShowColors == Colors_On || 1057 (ShowColors == Colors_Auto && 1058 llvm::sys::Process::StandardErrHasColors()); 1059 } 1060 1061 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1062 DiagnosticsEngine *Diags, 1063 bool DefaultDiagColor, bool DefaultShowOpt) { 1064 using namespace options; 1065 bool Success = true; 1066 1067 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1068 if (Arg *A = 1069 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1070 Opts.DiagnosticSerializationFile = A->getValue(); 1071 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1072 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1073 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1074 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1075 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1076 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1077 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1078 OPT_fno_show_column, 1079 /*Default=*/true); 1080 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1081 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1082 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1083 Opts.ShowOptionNames = 1084 Args.hasFlag(OPT_fdiagnostics_show_option, 1085 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1086 1087 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1088 1089 // Default behavior is to not to show note include stacks. 1090 Opts.ShowNoteIncludeStack = false; 1091 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1092 OPT_fno_diagnostics_show_note_include_stack)) 1093 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1094 Opts.ShowNoteIncludeStack = true; 1095 1096 StringRef ShowOverloads = 1097 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1098 if (ShowOverloads == "best") 1099 Opts.setShowOverloads(Ovl_Best); 1100 else if (ShowOverloads == "all") 1101 Opts.setShowOverloads(Ovl_All); 1102 else { 1103 Success = false; 1104 if (Diags) 1105 Diags->Report(diag::err_drv_invalid_value) 1106 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1107 << ShowOverloads; 1108 } 1109 1110 StringRef ShowCategory = 1111 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1112 if (ShowCategory == "none") 1113 Opts.ShowCategories = 0; 1114 else if (ShowCategory == "id") 1115 Opts.ShowCategories = 1; 1116 else if (ShowCategory == "name") 1117 Opts.ShowCategories = 2; 1118 else { 1119 Success = false; 1120 if (Diags) 1121 Diags->Report(diag::err_drv_invalid_value) 1122 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1123 << ShowCategory; 1124 } 1125 1126 StringRef Format = 1127 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1128 if (Format == "clang") 1129 Opts.setFormat(DiagnosticOptions::Clang); 1130 else if (Format == "msvc") 1131 Opts.setFormat(DiagnosticOptions::MSVC); 1132 else if (Format == "msvc-fallback") { 1133 Opts.setFormat(DiagnosticOptions::MSVC); 1134 Opts.CLFallbackMode = true; 1135 } else if (Format == "vi") 1136 Opts.setFormat(DiagnosticOptions::Vi); 1137 else { 1138 Success = false; 1139 if (Diags) 1140 Diags->Report(diag::err_drv_invalid_value) 1141 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1142 << Format; 1143 } 1144 1145 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1146 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1147 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1148 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1149 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1150 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1151 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1152 Diags, DiagMask); 1153 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1154 DiagMask = DiagnosticLevelMask::All; 1155 Opts.setVerifyIgnoreUnexpected(DiagMask); 1156 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1157 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1158 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1159 Opts.MacroBacktraceLimit = 1160 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1161 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1162 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1163 Args, OPT_ftemplate_backtrace_limit, 1164 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1165 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1166 Args, OPT_fconstexpr_backtrace_limit, 1167 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1168 Opts.SpellCheckingLimit = getLastArgIntValue( 1169 Args, OPT_fspell_checking_limit, 1170 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1171 Opts.SnippetLineLimit = getLastArgIntValue( 1172 Args, OPT_fcaret_diagnostics_max_lines, 1173 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1174 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1175 DiagnosticOptions::DefaultTabStop, Diags); 1176 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1177 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1178 if (Diags) 1179 Diags->Report(diag::warn_ignoring_ftabstop_value) 1180 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1181 } 1182 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1183 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1184 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1185 1186 return Success; 1187 } 1188 1189 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1190 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1191 } 1192 1193 /// Parse the argument to the -ftest-module-file-extension 1194 /// command-line argument. 1195 /// 1196 /// \returns true on error, false on success. 1197 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1198 std::string &BlockName, 1199 unsigned &MajorVersion, 1200 unsigned &MinorVersion, 1201 bool &Hashed, 1202 std::string &UserInfo) { 1203 SmallVector<StringRef, 5> Args; 1204 Arg.split(Args, ':', 5); 1205 if (Args.size() < 5) 1206 return true; 1207 1208 BlockName = Args[0]; 1209 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1210 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1211 if (Args[3].getAsInteger(2, Hashed)) return true; 1212 if (Args.size() > 4) 1213 UserInfo = Args[4]; 1214 return false; 1215 } 1216 1217 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1218 DiagnosticsEngine &Diags, 1219 bool &IsHeaderFile) { 1220 using namespace options; 1221 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1222 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1223 switch (A->getOption().getID()) { 1224 default: 1225 llvm_unreachable("Invalid option in group!"); 1226 case OPT_ast_list: 1227 Opts.ProgramAction = frontend::ASTDeclList; break; 1228 case OPT_ast_dump: 1229 case OPT_ast_dump_all: 1230 case OPT_ast_dump_lookups: 1231 Opts.ProgramAction = frontend::ASTDump; break; 1232 case OPT_ast_print: 1233 Opts.ProgramAction = frontend::ASTPrint; break; 1234 case OPT_ast_view: 1235 Opts.ProgramAction = frontend::ASTView; break; 1236 case OPT_dump_raw_tokens: 1237 Opts.ProgramAction = frontend::DumpRawTokens; break; 1238 case OPT_dump_tokens: 1239 Opts.ProgramAction = frontend::DumpTokens; break; 1240 case OPT_S: 1241 Opts.ProgramAction = frontend::EmitAssembly; break; 1242 case OPT_emit_llvm_bc: 1243 Opts.ProgramAction = frontend::EmitBC; break; 1244 case OPT_emit_html: 1245 Opts.ProgramAction = frontend::EmitHTML; break; 1246 case OPT_emit_llvm: 1247 Opts.ProgramAction = frontend::EmitLLVM; break; 1248 case OPT_emit_llvm_only: 1249 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1250 case OPT_emit_codegen_only: 1251 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1252 case OPT_emit_obj: 1253 Opts.ProgramAction = frontend::EmitObj; break; 1254 case OPT_fixit_EQ: 1255 Opts.FixItSuffix = A->getValue(); 1256 // fall-through! 1257 case OPT_fixit: 1258 Opts.ProgramAction = frontend::FixIt; break; 1259 case OPT_emit_module: 1260 Opts.ProgramAction = frontend::GenerateModule; break; 1261 case OPT_emit_module_interface: 1262 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1263 case OPT_emit_pch: 1264 Opts.ProgramAction = frontend::GeneratePCH; break; 1265 case OPT_emit_pth: 1266 Opts.ProgramAction = frontend::GeneratePTH; break; 1267 case OPT_init_only: 1268 Opts.ProgramAction = frontend::InitOnly; break; 1269 case OPT_fsyntax_only: 1270 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1271 case OPT_module_file_info: 1272 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1273 case OPT_verify_pch: 1274 Opts.ProgramAction = frontend::VerifyPCH; break; 1275 case OPT_print_decl_contexts: 1276 Opts.ProgramAction = frontend::PrintDeclContext; break; 1277 case OPT_print_preamble: 1278 Opts.ProgramAction = frontend::PrintPreamble; break; 1279 case OPT_E: 1280 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1281 case OPT_rewrite_macros: 1282 Opts.ProgramAction = frontend::RewriteMacros; break; 1283 case OPT_rewrite_objc: 1284 Opts.ProgramAction = frontend::RewriteObjC; break; 1285 case OPT_rewrite_test: 1286 Opts.ProgramAction = frontend::RewriteTest; break; 1287 case OPT_analyze: 1288 Opts.ProgramAction = frontend::RunAnalysis; break; 1289 case OPT_migrate: 1290 Opts.ProgramAction = frontend::MigrateSource; break; 1291 case OPT_Eonly: 1292 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1293 } 1294 } 1295 1296 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1297 Opts.Plugins.emplace_back(A->getValue(0)); 1298 Opts.ProgramAction = frontend::PluginAction; 1299 Opts.ActionName = A->getValue(); 1300 } 1301 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1302 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1303 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1304 1305 for (const std::string &Arg : 1306 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1307 std::string BlockName; 1308 unsigned MajorVersion; 1309 unsigned MinorVersion; 1310 bool Hashed; 1311 std::string UserInfo; 1312 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1313 MinorVersion, Hashed, UserInfo)) { 1314 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1315 1316 continue; 1317 } 1318 1319 // Add the testing module file extension. 1320 Opts.ModuleFileExtensions.push_back( 1321 std::make_shared<TestModuleFileExtension>( 1322 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1323 } 1324 1325 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1326 Opts.CodeCompletionAt = 1327 ParsedSourceLocation::FromString(A->getValue()); 1328 if (Opts.CodeCompletionAt.FileName.empty()) 1329 Diags.Report(diag::err_drv_invalid_value) 1330 << A->getAsString(Args) << A->getValue(); 1331 } 1332 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1333 1334 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1335 Opts.Plugins = Args.getAllArgValues(OPT_load); 1336 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1337 Opts.ShowHelp = Args.hasArg(OPT_help); 1338 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1339 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1340 Opts.ShowVersion = Args.hasArg(OPT_version); 1341 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1342 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1343 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1344 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1345 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1346 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1347 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1348 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1349 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1350 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1351 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1352 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1353 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1354 // Only the -fmodule-file=<file> form. 1355 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1356 StringRef Val = A->getValue(); 1357 if (Val.find('=') == StringRef::npos) 1358 Opts.ModuleFiles.push_back(Val); 1359 } 1360 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1361 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1362 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1363 1364 Opts.CodeCompleteOpts.IncludeMacros 1365 = Args.hasArg(OPT_code_completion_macros); 1366 Opts.CodeCompleteOpts.IncludeCodePatterns 1367 = Args.hasArg(OPT_code_completion_patterns); 1368 Opts.CodeCompleteOpts.IncludeGlobals 1369 = !Args.hasArg(OPT_no_code_completion_globals); 1370 Opts.CodeCompleteOpts.IncludeBriefComments 1371 = Args.hasArg(OPT_code_completion_brief_comments); 1372 1373 Opts.OverrideRecordLayoutsFile 1374 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1375 Opts.AuxTriple = 1376 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1377 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1378 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1379 1380 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1381 OPT_arcmt_modify, 1382 OPT_arcmt_migrate)) { 1383 switch (A->getOption().getID()) { 1384 default: 1385 llvm_unreachable("missed a case"); 1386 case OPT_arcmt_check: 1387 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1388 break; 1389 case OPT_arcmt_modify: 1390 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1391 break; 1392 case OPT_arcmt_migrate: 1393 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1394 break; 1395 } 1396 } 1397 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1398 Opts.ARCMTMigrateReportOut 1399 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1400 Opts.ARCMTMigrateEmitARCErrors 1401 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1402 1403 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1404 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1405 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1406 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1407 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1408 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1409 if (Args.hasArg(OPT_objcmt_migrate_property)) 1410 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1411 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1412 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1413 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1414 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1415 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1416 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1417 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1418 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1419 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1420 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1421 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1422 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1423 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1424 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1425 if (Args.hasArg(OPT_objcmt_atomic_property)) 1426 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1427 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1428 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1429 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1430 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1431 if (Args.hasArg(OPT_objcmt_migrate_all)) 1432 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1433 1434 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1435 1436 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1437 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1438 Diags.Report(diag::err_drv_argument_not_allowed_with) 1439 << "ARC migration" << "ObjC migration"; 1440 } 1441 1442 InputKind DashX(InputKind::Unknown); 1443 if (const Arg *A = Args.getLastArg(OPT_x)) { 1444 StringRef XValue = A->getValue(); 1445 1446 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1447 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1448 bool Preprocessed = XValue.consume_back("-cpp-output"); 1449 bool ModuleMap = XValue.consume_back("-module-map"); 1450 IsHeaderFile = 1451 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1452 1453 // Principal languages. 1454 DashX = llvm::StringSwitch<InputKind>(XValue) 1455 .Case("c", InputKind::C) 1456 .Case("cl", InputKind::OpenCL) 1457 .Case("cuda", InputKind::CUDA) 1458 .Case("c++", InputKind::CXX) 1459 .Case("objective-c", InputKind::ObjC) 1460 .Case("objective-c++", InputKind::ObjCXX) 1461 .Case("renderscript", InputKind::RenderScript) 1462 .Default(InputKind::Unknown); 1463 1464 // "objc[++]-cpp-output" is an acceptable synonym for 1465 // "objective-c[++]-cpp-output". 1466 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1467 DashX = llvm::StringSwitch<InputKind>(XValue) 1468 .Case("objc", InputKind::ObjC) 1469 .Case("objc++", InputKind::ObjCXX) 1470 .Default(InputKind::Unknown); 1471 1472 // Some special cases cannot be combined with suffixes. 1473 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1474 DashX = llvm::StringSwitch<InputKind>(XValue) 1475 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1476 .Case("assembler-with-cpp", InputKind::Asm) 1477 .Cases("ast", "pcm", 1478 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1479 .Case("ir", InputKind::LLVM_IR) 1480 .Default(InputKind::Unknown); 1481 1482 if (DashX.isUnknown()) 1483 Diags.Report(diag::err_drv_invalid_value) 1484 << A->getAsString(Args) << A->getValue(); 1485 1486 if (Preprocessed) 1487 DashX = DashX.getPreprocessed(); 1488 if (ModuleMap) 1489 DashX = DashX.withFormat(InputKind::ModuleMap); 1490 } 1491 1492 // '-' is the default input if none is given. 1493 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1494 Opts.Inputs.clear(); 1495 if (Inputs.empty()) 1496 Inputs.push_back("-"); 1497 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1498 InputKind IK = DashX; 1499 if (IK.isUnknown()) { 1500 IK = FrontendOptions::getInputKindForExtension( 1501 StringRef(Inputs[i]).rsplit('.').second); 1502 // FIXME: Warn on this? 1503 if (IK.isUnknown()) 1504 IK = InputKind::C; 1505 // FIXME: Remove this hack. 1506 if (i == 0) 1507 DashX = IK; 1508 } 1509 1510 // The -emit-module action implicitly takes a module map. 1511 if (Opts.ProgramAction == frontend::GenerateModule && 1512 IK.getFormat() == InputKind::Source) 1513 IK = IK.withFormat(InputKind::ModuleMap); 1514 1515 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1516 } 1517 1518 return DashX; 1519 } 1520 1521 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1522 void *MainAddr) { 1523 std::string ClangExecutable = 1524 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1525 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1526 1527 // Compute the path to the resource directory. 1528 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1529 SmallString<128> P(Dir); 1530 if (ClangResourceDir != "") 1531 llvm::sys::path::append(P, ClangResourceDir); 1532 else 1533 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1534 "clang", CLANG_VERSION_STRING); 1535 1536 return P.str(); 1537 } 1538 1539 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1540 const std::string &WorkingDir) { 1541 using namespace options; 1542 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1543 Opts.Verbose = Args.hasArg(OPT_v); 1544 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1545 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1546 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1547 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1548 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1549 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1550 1551 // Canonicalize -fmodules-cache-path before storing it. 1552 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1553 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1554 if (WorkingDir.empty()) 1555 llvm::sys::fs::make_absolute(P); 1556 else 1557 llvm::sys::fs::make_absolute(WorkingDir, P); 1558 } 1559 llvm::sys::path::remove_dots(P); 1560 Opts.ModuleCachePath = P.str(); 1561 1562 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1563 // Only the -fmodule-file=<name>=<file> form. 1564 for (const Arg *A : Args.filtered(OPT_fmodule_file)) { 1565 StringRef Val = A->getValue(); 1566 if (Val.find('=') != StringRef::npos) 1567 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1568 } 1569 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1570 Opts.AddPrebuiltModulePath(A->getValue()); 1571 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1572 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1573 Opts.ModulesValidateDiagnosticOptions = 1574 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1575 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1576 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1577 Opts.ModuleCachePruneInterval = 1578 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1579 Opts.ModuleCachePruneAfter = 1580 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1581 Opts.ModulesValidateOncePerBuildSession = 1582 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1583 Opts.BuildSessionTimestamp = 1584 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1585 Opts.ModulesValidateSystemHeaders = 1586 Args.hasArg(OPT_fmodules_validate_system_headers); 1587 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1588 Opts.ModuleFormat = A->getValue(); 1589 1590 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1591 StringRef MacroDef = A->getValue(); 1592 Opts.ModulesIgnoreMacros.insert( 1593 llvm::CachedHashString(MacroDef.split('=').first)); 1594 } 1595 1596 // Add -I..., -F..., and -index-header-map options in order. 1597 bool IsIndexHeaderMap = false; 1598 bool IsSysrootSpecified = 1599 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1600 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1601 if (A->getOption().matches(OPT_index_header_map)) { 1602 // -index-header-map applies to the next -I or -F. 1603 IsIndexHeaderMap = true; 1604 continue; 1605 } 1606 1607 frontend::IncludeDirGroup Group = 1608 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1609 1610 bool IsFramework = A->getOption().matches(OPT_F); 1611 std::string Path = A->getValue(); 1612 1613 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1614 SmallString<32> Buffer; 1615 llvm::sys::path::append(Buffer, Opts.Sysroot, 1616 llvm::StringRef(A->getValue()).substr(1)); 1617 Path = Buffer.str(); 1618 } 1619 1620 Opts.AddPath(Path, Group, IsFramework, 1621 /*IgnoreSysroot*/ true); 1622 IsIndexHeaderMap = false; 1623 } 1624 1625 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1626 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1627 for (const Arg *A : 1628 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1629 if (A->getOption().matches(OPT_iprefix)) 1630 Prefix = A->getValue(); 1631 else if (A->getOption().matches(OPT_iwithprefix)) 1632 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1633 else 1634 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1635 } 1636 1637 for (const Arg *A : Args.filtered(OPT_idirafter)) 1638 Opts.AddPath(A->getValue(), frontend::After, false, true); 1639 for (const Arg *A : Args.filtered(OPT_iquote)) 1640 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1641 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1642 Opts.AddPath(A->getValue(), frontend::System, false, 1643 !A->getOption().matches(OPT_iwithsysroot)); 1644 for (const Arg *A : Args.filtered(OPT_iframework)) 1645 Opts.AddPath(A->getValue(), frontend::System, true, true); 1646 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot)) 1647 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 1648 /*IgnoreSysRoot=*/false); 1649 1650 // Add the paths for the various language specific isystem flags. 1651 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1652 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1653 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1654 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1655 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1656 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1657 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1658 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1659 1660 // Add the internal paths from a driver that detects standard include paths. 1661 for (const Arg *A : 1662 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1663 frontend::IncludeDirGroup Group = frontend::System; 1664 if (A->getOption().matches(OPT_internal_externc_isystem)) 1665 Group = frontend::ExternCSystem; 1666 Opts.AddPath(A->getValue(), Group, false, true); 1667 } 1668 1669 // Add the path prefixes which are implicitly treated as being system headers. 1670 for (const Arg *A : 1671 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1672 Opts.AddSystemHeaderPrefix( 1673 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1674 1675 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1676 Opts.AddVFSOverlayFile(A->getValue()); 1677 } 1678 1679 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1680 const llvm::Triple &T, 1681 PreprocessorOptions &PPOpts, 1682 LangStandard::Kind LangStd) { 1683 // Set some properties which depend solely on the input kind; it would be nice 1684 // to move these to the language standard, and have the driver resolve the 1685 // input kind + language standard. 1686 // 1687 // FIXME: Perhaps a better model would be for a single source file to have 1688 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 1689 // simultaneously active? 1690 if (IK.getLanguage() == InputKind::Asm) { 1691 Opts.AsmPreprocessor = 1; 1692 } else if (IK.isObjectiveC()) { 1693 Opts.ObjC1 = Opts.ObjC2 = 1; 1694 } 1695 1696 if (LangStd == LangStandard::lang_unspecified) { 1697 // Based on the base language, pick one. 1698 switch (IK.getLanguage()) { 1699 case InputKind::Unknown: 1700 case InputKind::LLVM_IR: 1701 llvm_unreachable("Invalid input kind!"); 1702 case InputKind::OpenCL: 1703 LangStd = LangStandard::lang_opencl10; 1704 break; 1705 case InputKind::CUDA: 1706 LangStd = LangStandard::lang_cuda; 1707 break; 1708 case InputKind::Asm: 1709 case InputKind::C: 1710 // The PS4 uses C99 as the default C standard. 1711 if (T.isPS4()) 1712 LangStd = LangStandard::lang_gnu99; 1713 else 1714 LangStd = LangStandard::lang_gnu11; 1715 break; 1716 case InputKind::ObjC: 1717 LangStd = LangStandard::lang_gnu11; 1718 break; 1719 case InputKind::CXX: 1720 case InputKind::ObjCXX: 1721 // The PS4 uses C++11 as the default C++ standard. 1722 if (T.isPS4()) 1723 LangStd = LangStandard::lang_gnucxx11; 1724 else 1725 LangStd = LangStandard::lang_gnucxx98; 1726 break; 1727 case InputKind::RenderScript: 1728 LangStd = LangStandard::lang_c99; 1729 break; 1730 } 1731 } 1732 1733 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1734 Opts.LineComment = Std.hasLineComments(); 1735 Opts.C99 = Std.isC99(); 1736 Opts.C11 = Std.isC11(); 1737 Opts.CPlusPlus = Std.isCPlusPlus(); 1738 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1739 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1740 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1741 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 1742 Opts.Digraphs = Std.hasDigraphs(); 1743 Opts.GNUMode = Std.isGNUMode(); 1744 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 1745 Opts.HexFloats = Std.hasHexFloats(); 1746 Opts.ImplicitInt = Std.hasImplicitInt(); 1747 1748 // Set OpenCL Version. 1749 Opts.OpenCL = Std.isOpenCL(); 1750 if (LangStd == LangStandard::lang_opencl10) 1751 Opts.OpenCLVersion = 100; 1752 else if (LangStd == LangStandard::lang_opencl11) 1753 Opts.OpenCLVersion = 110; 1754 else if (LangStd == LangStandard::lang_opencl12) 1755 Opts.OpenCLVersion = 120; 1756 else if (LangStd == LangStandard::lang_opencl20) 1757 Opts.OpenCLVersion = 200; 1758 1759 // OpenCL has some additional defaults. 1760 if (Opts.OpenCL) { 1761 Opts.AltiVec = 0; 1762 Opts.ZVector = 0; 1763 Opts.LaxVectorConversions = 0; 1764 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 1765 Opts.NativeHalfType = 1; 1766 Opts.NativeHalfArgsAndReturns = 1; 1767 // Include default header file for OpenCL. 1768 if (Opts.IncludeDefaultHeader) { 1769 PPOpts.Includes.push_back("opencl-c.h"); 1770 } 1771 } 1772 1773 Opts.CUDA = IK.getLanguage() == InputKind::CUDA; 1774 if (Opts.CUDA) 1775 // Set default FP_CONTRACT to FAST. 1776 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 1777 1778 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 1779 if (Opts.RenderScript) { 1780 Opts.NativeHalfType = 1; 1781 Opts.NativeHalfArgsAndReturns = 1; 1782 } 1783 1784 // OpenCL and C++ both have bool, true, false keywords. 1785 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1786 1787 // OpenCL has half keyword 1788 Opts.Half = Opts.OpenCL; 1789 1790 // C++ has wchar_t keyword. 1791 Opts.WChar = Opts.CPlusPlus; 1792 1793 Opts.GNUKeywords = Opts.GNUMode; 1794 Opts.CXXOperatorNames = Opts.CPlusPlus; 1795 1796 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1797 1798 Opts.DollarIdents = !Opts.AsmPreprocessor; 1799 } 1800 1801 /// Attempt to parse a visibility value out of the given argument. 1802 static Visibility parseVisibility(Arg *arg, ArgList &args, 1803 DiagnosticsEngine &diags) { 1804 StringRef value = arg->getValue(); 1805 if (value == "default") { 1806 return DefaultVisibility; 1807 } else if (value == "hidden" || value == "internal") { 1808 return HiddenVisibility; 1809 } else if (value == "protected") { 1810 // FIXME: diagnose if target does not support protected visibility 1811 return ProtectedVisibility; 1812 } 1813 1814 diags.Report(diag::err_drv_invalid_value) 1815 << arg->getAsString(args) << value; 1816 return DefaultVisibility; 1817 } 1818 1819 /// Check if input file kind and language standard are compatible. 1820 static bool IsInputCompatibleWithStandard(InputKind IK, 1821 const LangStandard &S) { 1822 switch (IK.getLanguage()) { 1823 case InputKind::Unknown: 1824 case InputKind::LLVM_IR: 1825 llvm_unreachable("should not parse language flags for this input"); 1826 1827 case InputKind::C: 1828 case InputKind::ObjC: 1829 case InputKind::RenderScript: 1830 return S.getLanguage() == InputKind::C; 1831 1832 case InputKind::OpenCL: 1833 return S.getLanguage() == InputKind::OpenCL; 1834 1835 case InputKind::CXX: 1836 case InputKind::ObjCXX: 1837 return S.getLanguage() == InputKind::CXX; 1838 1839 case InputKind::CUDA: 1840 // FIXME: What -std= values should be permitted for CUDA compilations? 1841 return S.getLanguage() == InputKind::CUDA || 1842 S.getLanguage() == InputKind::CXX; 1843 1844 case InputKind::Asm: 1845 // Accept (and ignore) all -std= values. 1846 // FIXME: The -std= value is not ignored; it affects the tokenization 1847 // and preprocessing rules if we're preprocessing this asm input. 1848 return true; 1849 } 1850 1851 llvm_unreachable("unexpected input language"); 1852 } 1853 1854 /// Get language name for given input kind. 1855 static const StringRef GetInputKindName(InputKind IK) { 1856 switch (IK.getLanguage()) { 1857 case InputKind::C: 1858 return "C"; 1859 case InputKind::ObjC: 1860 return "Objective-C"; 1861 case InputKind::CXX: 1862 return "C++"; 1863 case InputKind::ObjCXX: 1864 return "Objective-C++"; 1865 case InputKind::OpenCL: 1866 return "OpenCL"; 1867 case InputKind::CUDA: 1868 return "CUDA"; 1869 case InputKind::RenderScript: 1870 return "RenderScript"; 1871 1872 case InputKind::Asm: 1873 return "Asm"; 1874 case InputKind::LLVM_IR: 1875 return "LLVM IR"; 1876 1877 case InputKind::Unknown: 1878 break; 1879 } 1880 llvm_unreachable("unknown input language"); 1881 } 1882 1883 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1884 const TargetOptions &TargetOpts, 1885 PreprocessorOptions &PPOpts, 1886 DiagnosticsEngine &Diags) { 1887 // FIXME: Cleanup per-file based stuff. 1888 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1889 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1890 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1891 #define LANGSTANDARD(id, name, lang, desc, features) \ 1892 .Case(name, LangStandard::lang_##id) 1893 #define LANGSTANDARD_ALIAS(id, alias) \ 1894 .Case(alias, LangStandard::lang_##id) 1895 #include "clang/Frontend/LangStandards.def" 1896 .Default(LangStandard::lang_unspecified); 1897 if (LangStd == LangStandard::lang_unspecified) { 1898 Diags.Report(diag::err_drv_invalid_value) 1899 << A->getAsString(Args) << A->getValue(); 1900 // Report supported standards with short description. 1901 for (unsigned KindValue = 0; 1902 KindValue != LangStandard::lang_unspecified; 1903 ++KindValue) { 1904 const LangStandard &Std = LangStandard::getLangStandardForKind( 1905 static_cast<LangStandard::Kind>(KindValue)); 1906 if (IsInputCompatibleWithStandard(IK, Std)) { 1907 auto Diag = Diags.Report(diag::note_drv_use_standard); 1908 Diag << Std.getName() << Std.getDescription(); 1909 unsigned NumAliases = 0; 1910 #define LANGSTANDARD(id, name, lang, desc, features) 1911 #define LANGSTANDARD_ALIAS(id, alias) \ 1912 if (KindValue == LangStandard::lang_##id) ++NumAliases; 1913 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1914 #include "clang/Frontend/LangStandards.def" 1915 Diag << NumAliases; 1916 #define LANGSTANDARD(id, name, lang, desc, features) 1917 #define LANGSTANDARD_ALIAS(id, alias) \ 1918 if (KindValue == LangStandard::lang_##id) Diag << alias; 1919 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 1920 #include "clang/Frontend/LangStandards.def" 1921 } 1922 } 1923 } else { 1924 // Valid standard, check to make sure language and standard are 1925 // compatible. 1926 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1927 if (!IsInputCompatibleWithStandard(IK, Std)) { 1928 Diags.Report(diag::err_drv_argument_not_allowed_with) 1929 << A->getAsString(Args) << GetInputKindName(IK); 1930 } 1931 } 1932 } 1933 1934 // -cl-std only applies for OpenCL language standards. 1935 // Override the -std option in this case. 1936 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1937 LangStandard::Kind OpenCLLangStd 1938 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1939 .Cases("cl", "CL", LangStandard::lang_opencl10) 1940 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1941 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1942 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1943 .Default(LangStandard::lang_unspecified); 1944 1945 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1946 Diags.Report(diag::err_drv_invalid_value) 1947 << A->getAsString(Args) << A->getValue(); 1948 } 1949 else 1950 LangStd = OpenCLLangStd; 1951 } 1952 1953 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1954 1955 llvm::Triple T(TargetOpts.Triple); 1956 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1957 1958 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1959 // This option should be deprecated for CL > 1.0 because 1960 // this option was added for compatibility with OpenCL 1.0. 1961 if (Args.getLastArg(OPT_cl_strict_aliasing) 1962 && Opts.OpenCLVersion > 100) { 1963 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1964 std::string(".") + 1965 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1966 Diags.Report(diag::warn_option_invalid_ocl_version) 1967 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1968 } 1969 1970 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1971 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1972 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1973 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1974 // name, as it doesn't seem a useful distinction. 1975 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1976 Opts.GNUKeywords); 1977 1978 if (Args.hasArg(OPT_fno_operator_names)) 1979 Opts.CXXOperatorNames = 0; 1980 1981 if (Args.hasArg(OPT_fcuda_is_device)) 1982 Opts.CUDAIsDevice = 1; 1983 1984 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1985 Opts.CUDAAllowVariadicFunctions = 1; 1986 1987 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1988 Opts.CUDAHostDeviceConstexpr = 0; 1989 1990 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1991 Opts.CUDADeviceFlushDenormalsToZero = 1; 1992 1993 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1994 Opts.CUDADeviceApproxTranscendentals = 1; 1995 1996 if (Opts.ObjC1) { 1997 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1998 StringRef value = arg->getValue(); 1999 if (Opts.ObjCRuntime.tryParse(value)) 2000 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2001 } 2002 2003 if (Args.hasArg(OPT_fobjc_gc_only)) 2004 Opts.setGC(LangOptions::GCOnly); 2005 else if (Args.hasArg(OPT_fobjc_gc)) 2006 Opts.setGC(LangOptions::HybridGC); 2007 else if (Args.hasArg(OPT_fobjc_arc)) { 2008 Opts.ObjCAutoRefCount = 1; 2009 if (!Opts.ObjCRuntime.allowsARC()) 2010 Diags.Report(diag::err_arc_unsupported_on_runtime); 2011 } 2012 2013 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2014 // whether the feature is actually enabled. This is predominantly 2015 // determined by -fobjc-runtime, but we allow it to be overridden 2016 // from the command line for testing purposes. 2017 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2018 Opts.ObjCWeakRuntime = 1; 2019 else 2020 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2021 2022 // ObjCWeak determines whether __weak is actually enabled. 2023 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2024 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2025 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2026 assert(!Opts.ObjCWeak); 2027 } else if (Opts.getGC() != LangOptions::NonGC) { 2028 Diags.Report(diag::err_objc_weak_with_gc); 2029 } else if (!Opts.ObjCWeakRuntime) { 2030 Diags.Report(diag::err_objc_weak_unsupported); 2031 } else { 2032 Opts.ObjCWeak = 1; 2033 } 2034 } else if (Opts.ObjCAutoRefCount) { 2035 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2036 } 2037 2038 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2039 Opts.ObjCInferRelatedResultType = 0; 2040 2041 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2042 Opts.ObjCSubscriptingLegacyRuntime = 2043 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2044 } 2045 2046 if (Args.hasArg(OPT_fgnu89_inline)) { 2047 if (Opts.CPlusPlus) 2048 Diags.Report(diag::err_drv_argument_not_allowed_with) 2049 << "-fgnu89-inline" << GetInputKindName(IK); 2050 else 2051 Opts.GNUInline = 1; 2052 } 2053 2054 if (Args.hasArg(OPT_fapple_kext)) { 2055 if (!Opts.CPlusPlus) 2056 Diags.Report(diag::warn_c_kext); 2057 else 2058 Opts.AppleKext = 1; 2059 } 2060 2061 if (Args.hasArg(OPT_print_ivar_layout)) 2062 Opts.ObjCGCBitmapPrint = 1; 2063 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2064 Opts.NoConstantCFStrings = 1; 2065 2066 if (Args.hasArg(OPT_fzvector)) 2067 Opts.ZVector = 1; 2068 2069 if (Args.hasArg(OPT_pthread)) 2070 Opts.POSIXThreads = 1; 2071 2072 // The value-visibility mode defaults to "default". 2073 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2074 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2075 } else { 2076 Opts.setValueVisibilityMode(DefaultVisibility); 2077 } 2078 2079 // The type-visibility mode defaults to the value-visibility mode. 2080 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2081 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2082 } else { 2083 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2084 } 2085 2086 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2087 Opts.InlineVisibilityHidden = 1; 2088 2089 if (Args.hasArg(OPT_ftrapv)) { 2090 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2091 // Set the handler, if one is specified. 2092 Opts.OverflowHandler = 2093 Args.getLastArgValue(OPT_ftrapv_handler); 2094 } 2095 else if (Args.hasArg(OPT_fwrapv)) 2096 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2097 2098 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2099 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2100 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2101 Opts.MSCompatibilityVersion = 0; 2102 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2103 VersionTuple VT; 2104 if (VT.tryParse(A->getValue())) 2105 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2106 << A->getValue(); 2107 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2108 VT.getMinor().getValueOr(0) * 100000 + 2109 VT.getSubminor().getValueOr(0); 2110 } 2111 2112 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 2113 // is specified, or -std is set to a conforming mode. 2114 // Trigraphs are disabled by default in c++1z onwards. 2115 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 2116 Opts.Trigraphs = 2117 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2118 2119 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2120 OPT_fno_dollars_in_identifiers, 2121 Opts.DollarIdents); 2122 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2123 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2124 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2125 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2126 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2127 Opts.ConstStrings); 2128 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2129 Opts.LaxVectorConversions = 0; 2130 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2131 Opts.ThreadsafeStatics = 0; 2132 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2133 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2134 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2135 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 2136 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2137 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2138 2139 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2140 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2141 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2142 && Opts.OpenCLVersion >= 200); 2143 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2144 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2145 2146 // Enable [[]] attributes in C++11 by default. 2147 Opts.DoubleSquareBracketAttributes = 2148 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2149 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11); 2150 2151 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2152 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2153 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2154 Opts.ModulesDeclUse = 2155 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2156 Opts.ModulesLocalVisibility = 2157 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2158 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2159 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2160 Opts.ModulesSearchAll = Opts.Modules && 2161 !Args.hasArg(OPT_fno_modules_search_all) && 2162 Args.hasArg(OPT_fmodules_search_all); 2163 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2164 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2165 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2166 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2167 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2168 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2169 .Case("char", 1) 2170 .Case("short", 2) 2171 .Case("int", 4) 2172 .Default(0); 2173 if (Opts.WCharSize == 0) 2174 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2175 } 2176 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2177 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2178 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2179 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2180 if (!Opts.NoBuiltin) 2181 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2182 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2183 Opts.RelaxedTemplateTemplateArgs = 2184 Args.hasArg(OPT_frelaxed_template_template_args); 2185 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2186 Opts.AlignedAllocation = 2187 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2188 Opts.AlignedAllocation); 2189 Opts.AlignedAllocationUnavailable = 2190 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2191 Opts.NewAlignOverride = 2192 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2193 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2194 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2195 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2196 << A->getValue(); 2197 Opts.NewAlignOverride = 0; 2198 } 2199 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2200 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2201 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2202 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2203 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2204 Opts.InstantiationDepth = 2205 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2206 Opts.ArrowDepth = 2207 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2208 Opts.ConstexprCallDepth = 2209 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2210 Opts.ConstexprStepLimit = 2211 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2212 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2213 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2214 Opts.NumLargeByValueCopy = 2215 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2216 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2217 Opts.ObjCConstantStringClass = 2218 Args.getLastArgValue(OPT_fconstant_string_class); 2219 Opts.ObjCDefaultSynthProperties = 2220 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2221 Opts.EncodeExtendedBlockSig = 2222 Args.hasArg(OPT_fencode_extended_block_signature); 2223 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2224 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2225 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2226 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2227 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2228 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2229 Opts.Static = Args.hasArg(OPT_static_define); 2230 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2231 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2232 || Args.hasArg(OPT_fdump_record_layouts); 2233 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2234 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2235 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2236 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2237 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2238 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2239 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2240 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2241 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2242 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2243 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2244 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2245 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2246 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2247 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2248 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2249 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2250 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2251 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2252 // is enabled. 2253 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2254 | Opts.NativeHalfArgsAndReturns; 2255 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2256 2257 // __declspec is enabled by default for the PS4 by the driver, and also 2258 // enabled for Microsoft Extensions or Borland Extensions, here. 2259 // 2260 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2261 // CUDA extension. However, it is required for supporting 2262 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2263 // been rewritten in terms of something more generic, remove the Opts.CUDA 2264 // term here. 2265 Opts.DeclSpecKeyword = 2266 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2267 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2268 2269 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2270 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2271 .Case("target", LangOptions::ASMM_Target) 2272 .Case("no", LangOptions::ASMM_Off) 2273 .Case("yes", LangOptions::ASMM_On) 2274 .Default(255)) { 2275 default: 2276 Diags.Report(diag::err_drv_invalid_value) 2277 << "-faddress-space-map-mangling=" << A->getValue(); 2278 break; 2279 case LangOptions::ASMM_Target: 2280 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2281 break; 2282 case LangOptions::ASMM_On: 2283 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2284 break; 2285 case LangOptions::ASMM_Off: 2286 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2287 break; 2288 } 2289 } 2290 2291 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2292 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2293 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2294 A->getValue()) 2295 .Case("single", 2296 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2297 .Case("multiple", 2298 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2299 .Case("virtual", 2300 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2301 .Default(LangOptions::PPTMK_BestCase); 2302 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2303 Diags.Report(diag::err_drv_invalid_value) 2304 << "-fms-memptr-rep=" << A->getValue(); 2305 2306 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2307 } 2308 2309 // Check for MS default calling conventions being specified. 2310 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2311 LangOptions::DefaultCallingConvention DefaultCC = 2312 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2313 A->getValue()) 2314 .Case("cdecl", LangOptions::DCC_CDecl) 2315 .Case("fastcall", LangOptions::DCC_FastCall) 2316 .Case("stdcall", LangOptions::DCC_StdCall) 2317 .Case("vectorcall", LangOptions::DCC_VectorCall) 2318 .Default(LangOptions::DCC_None); 2319 if (DefaultCC == LangOptions::DCC_None) 2320 Diags.Report(diag::err_drv_invalid_value) 2321 << "-fdefault-calling-conv=" << A->getValue(); 2322 2323 llvm::Triple T(TargetOpts.Triple); 2324 llvm::Triple::ArchType Arch = T.getArch(); 2325 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2326 DefaultCC == LangOptions::DCC_StdCall) && 2327 Arch != llvm::Triple::x86; 2328 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2329 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2330 if (emitError) 2331 Diags.Report(diag::err_drv_argument_not_allowed_with) 2332 << A->getSpelling() << T.getTriple(); 2333 else 2334 Opts.setDefaultCallingConv(DefaultCC); 2335 } 2336 2337 // -mrtd option 2338 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2339 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2340 Diags.Report(diag::err_drv_argument_not_allowed_with) 2341 << A->getSpelling() << "-fdefault-calling-conv"; 2342 else { 2343 llvm::Triple T(TargetOpts.Triple); 2344 if (T.getArch() != llvm::Triple::x86) 2345 Diags.Report(diag::err_drv_argument_not_allowed_with) 2346 << A->getSpelling() << T.getTriple(); 2347 else 2348 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2349 } 2350 } 2351 2352 // Check if -fopenmp is specified. 2353 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2354 Opts.OpenMPUseTLS = 2355 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2356 Opts.OpenMPIsDevice = 2357 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2358 2359 if (Opts.OpenMP) { 2360 int Version = 2361 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2362 if (Version != 0) 2363 Opts.OpenMP = Version; 2364 // Provide diagnostic when a given target is not expected to be an OpenMP 2365 // device or host. 2366 if (!Opts.OpenMPIsDevice) { 2367 switch (T.getArch()) { 2368 default: 2369 break; 2370 // Add unsupported host targets here: 2371 case llvm::Triple::nvptx: 2372 case llvm::Triple::nvptx64: 2373 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2374 << TargetOpts.Triple; 2375 break; 2376 } 2377 } 2378 } 2379 2380 // Set the flag to prevent the implementation from emitting device exception 2381 // handling code for those requiring so. 2382 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2383 Opts.Exceptions = 0; 2384 Opts.CXXExceptions = 0; 2385 } 2386 2387 // Get the OpenMP target triples if any. 2388 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2389 2390 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2391 llvm::Triple TT(A->getValue(i)); 2392 2393 if (TT.getArch() == llvm::Triple::UnknownArch || 2394 !(TT.getArch() == llvm::Triple::ppc || 2395 TT.getArch() == llvm::Triple::ppc64 || 2396 TT.getArch() == llvm::Triple::ppc64le || 2397 TT.getArch() == llvm::Triple::nvptx || 2398 TT.getArch() == llvm::Triple::nvptx64 || 2399 TT.getArch() == llvm::Triple::x86 || 2400 TT.getArch() == llvm::Triple::x86_64)) 2401 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2402 else 2403 Opts.OMPTargetTriples.push_back(TT); 2404 } 2405 } 2406 2407 // Get OpenMP host file path if any and report if a non existent file is 2408 // found 2409 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2410 Opts.OMPHostIRFile = A->getValue(); 2411 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2412 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2413 << Opts.OMPHostIRFile; 2414 } 2415 2416 // Record whether the __DEPRECATED define was requested. 2417 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2418 OPT_fno_deprecated_macro, 2419 Opts.Deprecated); 2420 2421 // FIXME: Eliminate this dependency. 2422 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2423 OptSize = getOptimizationLevelSize(Args); 2424 Opts.Optimize = Opt != 0; 2425 Opts.OptimizeSize = OptSize != 0; 2426 2427 // This is the __NO_INLINE__ define, which just depends on things like the 2428 // optimization level and -fno-inline, not actually whether the backend has 2429 // inlining enabled. 2430 Opts.NoInlineDefine = !Opts.Optimize; 2431 if (Arg *InlineArg = Args.getLastArg( 2432 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2433 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2434 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2435 Opts.NoInlineDefine = true; 2436 2437 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2438 Args.hasArg(OPT_cl_fast_relaxed_math); 2439 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2440 Args.hasArg(OPT_cl_finite_math_only) || 2441 Args.hasArg(OPT_cl_fast_relaxed_math); 2442 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2443 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2444 Args.hasArg(OPT_cl_fast_relaxed_math); 2445 2446 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2447 StringRef Val = A->getValue(); 2448 if (Val == "fast") 2449 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2450 else if (Val == "on") 2451 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2452 else if (Val == "off") 2453 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2454 else 2455 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2456 } 2457 2458 Opts.RetainCommentsFromSystemHeaders = 2459 Args.hasArg(OPT_fretain_comments_from_system_headers); 2460 2461 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2462 switch (SSP) { 2463 default: 2464 Diags.Report(diag::err_drv_invalid_value) 2465 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2466 break; 2467 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2468 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2469 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2470 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2471 } 2472 2473 // Parse -fsanitize= arguments. 2474 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2475 Diags, Opts.Sanitize); 2476 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2477 Opts.SanitizeAddressFieldPadding = 2478 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2479 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2480 2481 // -fxray-instrument 2482 Opts.XRayInstrument = 2483 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2484 2485 // -fxray-{always,never}-instrument= filenames. 2486 Opts.XRayAlwaysInstrumentFiles = 2487 Args.getAllArgValues(OPT_fxray_always_instrument); 2488 Opts.XRayNeverInstrumentFiles = 2489 Args.getAllArgValues(OPT_fxray_never_instrument); 2490 2491 // -fallow-editor-placeholders 2492 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2493 } 2494 2495 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 2496 switch (Action) { 2497 case frontend::ASTDeclList: 2498 case frontend::ASTDump: 2499 case frontend::ASTPrint: 2500 case frontend::ASTView: 2501 case frontend::EmitAssembly: 2502 case frontend::EmitBC: 2503 case frontend::EmitHTML: 2504 case frontend::EmitLLVM: 2505 case frontend::EmitLLVMOnly: 2506 case frontend::EmitCodeGenOnly: 2507 case frontend::EmitObj: 2508 case frontend::FixIt: 2509 case frontend::GenerateModule: 2510 case frontend::GenerateModuleInterface: 2511 case frontend::GeneratePCH: 2512 case frontend::GeneratePTH: 2513 case frontend::ParseSyntaxOnly: 2514 case frontend::ModuleFileInfo: 2515 case frontend::VerifyPCH: 2516 case frontend::PluginAction: 2517 case frontend::PrintDeclContext: 2518 case frontend::RewriteObjC: 2519 case frontend::RewriteTest: 2520 case frontend::RunAnalysis: 2521 case frontend::MigrateSource: 2522 return false; 2523 2524 case frontend::DumpRawTokens: 2525 case frontend::DumpTokens: 2526 case frontend::InitOnly: 2527 case frontend::PrintPreamble: 2528 case frontend::PrintPreprocessedInput: 2529 case frontend::RewriteMacros: 2530 case frontend::RunPreprocessorOnly: 2531 return true; 2532 } 2533 llvm_unreachable("invalid frontend action"); 2534 } 2535 2536 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2537 FileManager &FileMgr, 2538 DiagnosticsEngine &Diags, 2539 frontend::ActionKind Action) { 2540 using namespace options; 2541 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2542 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2543 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2544 Opts.TokenCache = A->getValue(); 2545 else 2546 Opts.TokenCache = Opts.ImplicitPTHInclude; 2547 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2548 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2549 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2550 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 2551 2552 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2553 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2554 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2555 2556 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2557 StringRef Value(A->getValue()); 2558 size_t Comma = Value.find(','); 2559 unsigned Bytes = 0; 2560 unsigned EndOfLine = 0; 2561 2562 if (Comma == StringRef::npos || 2563 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2564 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2565 Diags.Report(diag::err_drv_preamble_format); 2566 else { 2567 Opts.PrecompiledPreambleBytes.first = Bytes; 2568 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2569 } 2570 } 2571 2572 // Add macros from the command line. 2573 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2574 if (A->getOption().matches(OPT_D)) 2575 Opts.addMacroDef(A->getValue()); 2576 else 2577 Opts.addMacroUndef(A->getValue()); 2578 } 2579 2580 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2581 2582 // Add the ordered list of -includes. 2583 for (const Arg *A : Args.filtered(OPT_include)) 2584 Opts.Includes.emplace_back(A->getValue()); 2585 2586 for (const Arg *A : Args.filtered(OPT_chain_include)) 2587 Opts.ChainedIncludes.emplace_back(A->getValue()); 2588 2589 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2590 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2591 2592 if (Split.second.empty()) { 2593 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2594 continue; 2595 } 2596 2597 Opts.addRemappedFile(Split.first, Split.second); 2598 } 2599 2600 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2601 StringRef Name = A->getValue(); 2602 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2603 .Case("libc++", ARCXX_libcxx) 2604 .Case("libstdc++", ARCXX_libstdcxx) 2605 .Case("none", ARCXX_nolib) 2606 .Default(~0U); 2607 if (Library == ~0U) 2608 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2609 else 2610 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2611 } 2612 2613 // Always avoid lexing editor placeholders when we're just running the 2614 // preprocessor as we never want to emit the 2615 // "editor placeholder in source file" error in PP only mode. 2616 if (isStrictlyPreprocessorAction(Action)) 2617 Opts.LexEditorPlaceholders = false; 2618 } 2619 2620 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2621 ArgList &Args, 2622 frontend::ActionKind Action) { 2623 using namespace options; 2624 2625 if (isStrictlyPreprocessorAction(Action)) 2626 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2627 else 2628 Opts.ShowCPP = 0; 2629 2630 Opts.ShowComments = Args.hasArg(OPT_C); 2631 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2632 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2633 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2634 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2635 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2636 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 2637 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2638 } 2639 2640 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2641 DiagnosticsEngine &Diags) { 2642 using namespace options; 2643 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2644 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2645 StringRef Value = A->getValue(); 2646 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2647 .Case("default", llvm::EABI::Default) 2648 .Case("4", llvm::EABI::EABI4) 2649 .Case("5", llvm::EABI::EABI5) 2650 .Case("gnu", llvm::EABI::GNU) 2651 .Default(llvm::EABI::Unknown); 2652 if (EABIVersion == llvm::EABI::Unknown) 2653 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2654 << Value; 2655 else 2656 Opts.EABIVersion = EABIVersion; 2657 } 2658 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2659 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2660 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2661 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2662 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2663 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2664 // Use the default target triple if unspecified. 2665 if (Opts.Triple.empty()) 2666 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2667 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2668 } 2669 2670 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2671 const char *const *ArgBegin, 2672 const char *const *ArgEnd, 2673 DiagnosticsEngine &Diags) { 2674 bool Success = true; 2675 2676 // Parse the arguments. 2677 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 2678 const unsigned IncludedFlagsBitmask = options::CC1Option; 2679 unsigned MissingArgIndex, MissingArgCount; 2680 InputArgList Args = 2681 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2682 MissingArgCount, IncludedFlagsBitmask); 2683 LangOptions &LangOpts = *Res.getLangOpts(); 2684 2685 // Check for missing argument error. 2686 if (MissingArgCount) { 2687 Diags.Report(diag::err_drv_missing_argument) 2688 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2689 Success = false; 2690 } 2691 2692 // Issue errors on unknown arguments. 2693 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2694 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2695 Success = false; 2696 } 2697 2698 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2699 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2700 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2701 Success &= 2702 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2703 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2704 ParseCommentArgs(LangOpts.CommentOpts, Args); 2705 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2706 // FIXME: We shouldn't have to pass the DashX option around here 2707 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2708 LangOpts.IsHeaderFile); 2709 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2710 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2711 Res.getTargetOpts()); 2712 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 2713 Res.getFileSystemOpts().WorkingDir); 2714 if (DashX.getFormat() == InputKind::Precompiled || 2715 DashX.getLanguage() == InputKind::LLVM_IR) { 2716 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2717 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2718 // what the input type is. 2719 if (Args.hasArg(OPT_fobjc_arc)) 2720 LangOpts.ObjCAutoRefCount = 1; 2721 // PIClevel and PIELevel are needed during code generation and this should be 2722 // set regardless of the input type. 2723 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2724 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2725 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2726 Diags, LangOpts.Sanitize); 2727 } else { 2728 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2729 // FIXME: Should we really be calling this for an InputKind::Asm input? 2730 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2731 Res.getPreprocessorOpts(), Diags); 2732 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2733 LangOpts.ObjCExceptions = 1; 2734 } 2735 2736 if (LangOpts.CUDA) { 2737 // During CUDA device-side compilation, the aux triple is the 2738 // triple used for host compilation. 2739 if (LangOpts.CUDAIsDevice) 2740 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2741 } 2742 2743 // Set the triple of the host for OpenMP device compile. 2744 if (LangOpts.OpenMPIsDevice) 2745 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2746 2747 // FIXME: Override value name discarding when asan or msan is used because the 2748 // backend passes depend on the name of the alloca in order to print out 2749 // names. 2750 Res.getCodeGenOpts().DiscardValueNames &= 2751 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2752 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2753 2754 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2755 // PCH file and find the original header name. Remove the need to do that in 2756 // ParsePreprocessorArgs and remove the FileManager 2757 // parameters from the function and the "FileManager.h" #include. 2758 FileManager FileMgr(Res.getFileSystemOpts()); 2759 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags, 2760 Res.getFrontendOpts().ProgramAction); 2761 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2762 Res.getFrontendOpts().ProgramAction); 2763 2764 // Turn on -Wspir-compat for SPIR target. 2765 llvm::Triple T(Res.getTargetOpts().Triple); 2766 auto Arch = T.getArch(); 2767 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2768 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2769 } 2770 2771 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 2772 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 2773 !Res.getLangOpts()->Sanitize.empty()) { 2774 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 2775 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 2776 } 2777 return Success; 2778 } 2779 2780 std::string CompilerInvocation::getModuleHash() const { 2781 // Note: For QoI reasons, the things we use as a hash here should all be 2782 // dumped via the -module-info flag. 2783 using llvm::hash_code; 2784 using llvm::hash_value; 2785 using llvm::hash_combine; 2786 2787 // Start the signature with the compiler version. 2788 // FIXME: We'd rather use something more cryptographically sound than 2789 // CityHash, but this will do for now. 2790 hash_code code = hash_value(getClangFullRepositoryVersion()); 2791 2792 // Extend the signature with the language options 2793 #define LANGOPT(Name, Bits, Default, Description) \ 2794 code = hash_combine(code, LangOpts->Name); 2795 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2796 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2797 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2798 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2799 #include "clang/Basic/LangOptions.def" 2800 2801 for (StringRef Feature : LangOpts->ModuleFeatures) 2802 code = hash_combine(code, Feature); 2803 2804 // Extend the signature with the target options. 2805 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2806 TargetOpts->ABI); 2807 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2808 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2809 2810 // Extend the signature with preprocessor options. 2811 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2812 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2813 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2814 2815 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2816 I = getPreprocessorOpts().Macros.begin(), 2817 IEnd = getPreprocessorOpts().Macros.end(); 2818 I != IEnd; ++I) { 2819 // If we're supposed to ignore this macro for the purposes of modules, 2820 // don't put it into the hash. 2821 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2822 // Check whether we're ignoring this macro. 2823 StringRef MacroDef = I->first; 2824 if (hsOpts.ModulesIgnoreMacros.count( 2825 llvm::CachedHashString(MacroDef.split('=').first))) 2826 continue; 2827 } 2828 2829 code = hash_combine(code, I->first, I->second); 2830 } 2831 2832 // Extend the signature with the sysroot and other header search options. 2833 code = hash_combine(code, hsOpts.Sysroot, 2834 hsOpts.ModuleFormat, 2835 hsOpts.UseDebugInfo, 2836 hsOpts.UseBuiltinIncludes, 2837 hsOpts.UseStandardSystemIncludes, 2838 hsOpts.UseStandardCXXIncludes, 2839 hsOpts.UseLibcxx, 2840 hsOpts.ModulesValidateDiagnosticOptions); 2841 code = hash_combine(code, hsOpts.ResourceDir); 2842 2843 // Extend the signature with the user build path. 2844 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2845 2846 // Extend the signature with the module file extensions. 2847 const FrontendOptions &frontendOpts = getFrontendOpts(); 2848 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2849 code = ext->hashExtension(code); 2850 } 2851 2852 // Extend the signature with the enabled sanitizers, if at least one is 2853 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 2854 SanitizerSet SanHash = LangOpts->Sanitize; 2855 SanHash.clear(getPPTransparentSanitizers()); 2856 if (!SanHash.empty()) 2857 code = hash_combine(code, SanHash.Mask); 2858 2859 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2860 } 2861 2862 namespace clang { 2863 2864 template<typename IntTy> 2865 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2866 IntTy Default, 2867 DiagnosticsEngine *Diags) { 2868 IntTy Res = Default; 2869 if (Arg *A = Args.getLastArg(Id)) { 2870 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2871 if (Diags) 2872 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2873 << A->getValue(); 2874 } 2875 } 2876 return Res; 2877 } 2878 2879 2880 // Declared in clang/Frontend/Utils.h. 2881 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2882 DiagnosticsEngine *Diags) { 2883 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2884 } 2885 2886 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2887 uint64_t Default, 2888 DiagnosticsEngine *Diags) { 2889 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2890 } 2891 2892 void BuryPointer(const void *Ptr) { 2893 // This function may be called only a small fixed amount of times per each 2894 // invocation, otherwise we do actually have a leak which we want to report. 2895 // If this function is called more than kGraveYardMaxSize times, the pointers 2896 // will not be properly buried and a leak detector will report a leak, which 2897 // is what we want in such case. 2898 static const size_t kGraveYardMaxSize = 16; 2899 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2900 static std::atomic<unsigned> GraveYardSize; 2901 unsigned Idx = GraveYardSize++; 2902 if (Idx >= kGraveYardMaxSize) 2903 return; 2904 GraveYard[Idx] = Ptr; 2905 } 2906 2907 IntrusiveRefCntPtr<vfs::FileSystem> 2908 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2909 DiagnosticsEngine &Diags) { 2910 return createVFSFromCompilerInvocation(CI, Diags, vfs::getRealFileSystem()); 2911 } 2912 2913 IntrusiveRefCntPtr<vfs::FileSystem> 2914 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2915 DiagnosticsEngine &Diags, 2916 IntrusiveRefCntPtr<vfs::FileSystem> BaseFS) { 2917 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2918 return BaseFS; 2919 2920 IntrusiveRefCntPtr<vfs::OverlayFileSystem> Overlay( 2921 new vfs::OverlayFileSystem(BaseFS)); 2922 // earlier vfs files are on the bottom 2923 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2924 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2925 BaseFS->getBufferForFile(File); 2926 if (!Buffer) { 2927 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2928 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2929 } 2930 2931 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2932 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2933 if (!FS.get()) { 2934 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2935 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2936 } 2937 Overlay->pushOverlay(FS); 2938 } 2939 return Overlay; 2940 } 2941 } // end namespace clang 2942