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 "clang/Basic/Diagnostic.h" 12 #include "clang/Basic/Version.h" 13 #include "clang/Basic/FileManager.h" 14 #include "clang/Driver/Arg.h" 15 #include "clang/Driver/ArgList.h" 16 #include "clang/Driver/Options.h" 17 #include "clang/Driver/DriverDiagnostic.h" 18 #include "clang/Driver/OptTable.h" 19 #include "clang/Driver/Option.h" 20 #include "clang/Frontend/CompilerInvocation.h" 21 #include "clang/Frontend/LangStandard.h" 22 #include "clang/Serialization/ASTReader.h" 23 #include "llvm/ADT/OwningPtr.h" 24 #include "llvm/ADT/SmallVector.h" 25 #include "llvm/ADT/StringExtras.h" 26 #include "llvm/ADT/StringSwitch.h" 27 #include "llvm/ADT/Triple.h" 28 #include "llvm/Support/ErrorHandling.h" 29 #include "llvm/Support/Host.h" 30 #include "llvm/Support/Path.h" 31 using namespace clang; 32 33 //===----------------------------------------------------------------------===// 34 // Initialization. 35 //===----------------------------------------------------------------------===// 36 37 CompilerInvocationBase::CompilerInvocationBase() 38 : LangOpts(new LangOptions()) {} 39 40 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 41 : RefCountedBase<CompilerInvocation>(), 42 LangOpts(new LangOptions(*X.getLangOpts())) {} 43 44 //===----------------------------------------------------------------------===// 45 // Utility functions. 46 //===----------------------------------------------------------------------===// 47 48 static const char *getAnalysisStoreName(AnalysisStores Kind) { 49 switch (Kind) { 50 default: 51 llvm_unreachable("Unknown analysis store!"); 52 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 53 case NAME##Model: return CMDFLAG; 54 #include "clang/Frontend/Analyses.def" 55 } 56 } 57 58 static const char *getAnalysisConstraintName(AnalysisConstraints Kind) { 59 switch (Kind) { 60 default: 61 llvm_unreachable("Unknown analysis constraints!"); 62 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 63 case NAME##Model: return CMDFLAG; 64 #include "clang/Frontend/Analyses.def" 65 } 66 } 67 68 static const char *getAnalysisDiagClientName(AnalysisDiagClients Kind) { 69 switch (Kind) { 70 default: 71 llvm_unreachable("Unknown analysis client!"); 72 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREATE) \ 73 case PD_##NAME: return CMDFLAG; 74 #include "clang/Frontend/Analyses.def" 75 } 76 } 77 78 static const char *getAnalysisPurgeModeName(AnalysisPurgeMode Kind) { 79 switch (Kind) { 80 default: 81 llvm_unreachable("Unknown analysis purge mode!"); 82 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 83 case NAME: return CMDFLAG; 84 #include "clang/Frontend/Analyses.def" 85 } 86 } 87 88 static const char *getAnalysisIPAModeName(AnalysisIPAMode Kind) { 89 switch (Kind) { 90 default: 91 llvm_unreachable("Unknown analysis ipa mode!"); 92 #define ANALYSIS_IPA(NAME, CMDFLAG, DESC) \ 93 case NAME: return CMDFLAG; 94 #include "clang/Frontend/Analyses.def" 95 } 96 } 97 98 static const char * 99 getAnalysisInliningModeName(AnalysisInliningMode Kind) { 100 switch (Kind) { 101 default: 102 llvm_unreachable("Unknown analysis inlining mode!"); 103 #define ANALYSIS_INLINE_SELECTION(NAME, CMDFLAG, DESC) \ 104 case NAME: return CMDFLAG; 105 #include "clang/Frontend/Analyses.def" 106 } 107 } 108 109 //===----------------------------------------------------------------------===// 110 // Serialization (to args) 111 //===----------------------------------------------------------------------===// 112 113 namespace { 114 /// ToArgsList - Helper class to create a list of std::strings. 115 class ToArgsList { 116 std::vector<std::string> &Res; 117 public: 118 explicit ToArgsList(std::vector<std::string> &Res) : Res(Res) {} 119 120 void push_back(StringRef Str) { 121 // Avoid creating a temporary string. 122 Res.push_back(std::string()); 123 Res.back().assign(Str.data(), Str.size()); 124 } 125 126 void push_back(StringRef Str1, StringRef Str2) { 127 push_back(Str1); 128 push_back(Str2); 129 } 130 }; 131 } 132 133 static void AnalyzerOptsToArgs(const AnalyzerOptions &Opts, ToArgsList &Res) { 134 if (Opts.ShowCheckerHelp) 135 Res.push_back("-analyzer-checker-help"); 136 if (Opts.AnalysisStoreOpt != RegionStoreModel) 137 Res.push_back("-analyzer-store", 138 getAnalysisStoreName(Opts.AnalysisStoreOpt)); 139 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) 140 Res.push_back("-analyzer-constraints", 141 getAnalysisConstraintName(Opts.AnalysisConstraintsOpt)); 142 if (Opts.AnalysisDiagOpt != PD_HTML) 143 Res.push_back("-analyzer-output", 144 getAnalysisDiagClientName(Opts.AnalysisDiagOpt)); 145 if (Opts.AnalysisPurgeOpt != PurgeStmt) 146 Res.push_back("-analyzer-purge", 147 getAnalysisPurgeModeName(Opts.AnalysisPurgeOpt)); 148 if (!Opts.AnalyzeSpecificFunction.empty()) 149 Res.push_back("-analyze-function", Opts.AnalyzeSpecificFunction); 150 if (Opts.IPAMode != Inlining) 151 Res.push_back("-analyzer-ipa", getAnalysisIPAModeName(Opts.IPAMode)); 152 if (Opts.InliningMode != NoRedundancy) 153 Res.push_back("-analyzer-inlining-mode", 154 getAnalysisInliningModeName(Opts.InliningMode)); 155 156 if (Opts.AnalyzeAll) 157 Res.push_back("-analyzer-opt-analyze-headers"); 158 if (Opts.AnalyzerDisplayProgress) 159 Res.push_back("-analyzer-display-progress"); 160 if (Opts.AnalyzeNestedBlocks) 161 Res.push_back("-analyzer-opt-analyze-nested-blocks"); 162 if (Opts.EagerlyAssume) 163 Res.push_back("-analyzer-eagerly-assume"); 164 if (Opts.TrimGraph) 165 Res.push_back("-trim-egraph"); 166 if (Opts.VisualizeEGDot) 167 Res.push_back("-analyzer-viz-egraph-graphviz"); 168 if (Opts.VisualizeEGUbi) 169 Res.push_back("-analyzer-viz-egraph-ubigraph"); 170 if (Opts.NoRetryExhausted) 171 Res.push_back("-analyzer-disable-retry-exhausted"); 172 173 for (unsigned i = 0, e = Opts.CheckersControlList.size(); i != e; ++i) { 174 const std::pair<std::string, bool> &opt = Opts.CheckersControlList[i]; 175 if (opt.second) 176 Res.push_back("-analyzer-disable-checker"); 177 else 178 Res.push_back("-analyzer-checker"); 179 Res.push_back(opt.first); 180 } 181 } 182 183 static void CodeGenOptsToArgs(const CodeGenOptions &Opts, ToArgsList &Res) { 184 switch (Opts.DebugInfo) { 185 case CodeGenOptions::NoDebugInfo: 186 break; 187 case CodeGenOptions::DebugLineTablesOnly: 188 Res.push_back("-gline-tables-only"); 189 break; 190 case CodeGenOptions::LimitedDebugInfo: 191 Res.push_back("-g"); 192 Res.push_back("-flimit-debug-info"); 193 break; 194 case CodeGenOptions::FullDebugInfo: 195 Res.push_back("-g"); 196 Res.push_back("-fno-limit-debug-info"); 197 break; 198 } 199 if (Opts.DisableLLVMOpts) 200 Res.push_back("-disable-llvm-optzns"); 201 if (Opts.DisableRedZone) 202 Res.push_back("-disable-red-zone"); 203 if (Opts.DisableTailCalls) 204 Res.push_back("-mdisable-tail-calls"); 205 if (!Opts.DebugCompilationDir.empty()) 206 Res.push_back("-fdebug-compilation-dir", Opts.DebugCompilationDir); 207 if (!Opts.DwarfDebugFlags.empty()) 208 Res.push_back("-dwarf-debug-flags", Opts.DwarfDebugFlags); 209 if (Opts.EmitGcovArcs) 210 Res.push_back("-femit-coverage-data"); 211 if (Opts.EmitGcovNotes) 212 Res.push_back("-femit-coverage-notes"); 213 if (Opts.EmitOpenCLArgMetadata) 214 Res.push_back("-cl-kernel-arg-info"); 215 if (!Opts.MergeAllConstants) 216 Res.push_back("-fno-merge-all-constants"); 217 if (Opts.NoCommon) 218 Res.push_back("-fno-common"); 219 if (Opts.ForbidGuardVariables) 220 Res.push_back("-fforbid-guard-variables"); 221 if (Opts.UseRegisterSizedBitfieldAccess) 222 Res.push_back("-fuse-register-sized-bitfield-access"); 223 if (Opts.NoImplicitFloat) 224 Res.push_back("-no-implicit-float"); 225 if (Opts.OmitLeafFramePointer) 226 Res.push_back("-momit-leaf-frame-pointer"); 227 if (Opts.OptimizeSize) { 228 assert(Opts.OptimizationLevel == 2 && "Invalid options!"); 229 Opts.OptimizeSize == 1 ? Res.push_back("-Os") : Res.push_back("-Oz"); 230 } else if (Opts.OptimizationLevel != 0) 231 Res.push_back("-O" + llvm::utostr(Opts.OptimizationLevel)); 232 if (!Opts.MainFileName.empty()) 233 Res.push_back("-main-file-name", Opts.MainFileName); 234 if (Opts.NoInfsFPMath) 235 Res.push_back("-menable-no-infinities"); 236 if (Opts.NoNaNsFPMath) 237 Res.push_back("-menable-no-nans"); 238 // SimplifyLibCalls is only derived. 239 // TimePasses is only derived. 240 // UnitAtATime is unused. 241 // Inlining is only derived. 242 243 // UnrollLoops is derived, but also accepts an option, no 244 // harm in pushing it back here. 245 if (Opts.UnrollLoops) 246 Res.push_back("-funroll-loops"); 247 if (Opts.DataSections) 248 Res.push_back("-fdata-sections"); 249 if (Opts.FunctionSections) 250 Res.push_back("-ffunction-sections"); 251 if (Opts.AsmVerbose) 252 Res.push_back("-masm-verbose"); 253 if (!Opts.CodeModel.empty()) 254 Res.push_back("-mcode-model", Opts.CodeModel); 255 if (Opts.CUDAIsDevice) 256 Res.push_back("-fcuda-is-device"); 257 if (!Opts.CXAAtExit) 258 Res.push_back("-fno-use-cxa-atexit"); 259 if (Opts.CXXCtorDtorAliases) 260 Res.push_back("-mconstructor-aliases"); 261 if (Opts.ObjCAutoRefCountExceptions) 262 Res.push_back("-fobjc-arc-eh"); 263 if (!Opts.DebugPass.empty()) { 264 Res.push_back("-mdebug-pass", Opts.DebugPass); 265 } 266 if (Opts.DisableFPElim) 267 Res.push_back("-mdisable-fp-elim"); 268 if (!Opts.FloatABI.empty()) 269 Res.push_back("-mfloat-abi", Opts.FloatABI); 270 if (!Opts.LimitFloatPrecision.empty()) 271 Res.push_back("-mlimit-float-precision", Opts.LimitFloatPrecision); 272 if (Opts.NoZeroInitializedInBSS) 273 Res.push_back("-mno-zero-initialized-bss"); 274 switch (Opts.getObjCDispatchMethod()) { 275 case CodeGenOptions::Legacy: 276 break; 277 case CodeGenOptions::Mixed: 278 Res.push_back("-fobjc-dispatch-method=mixed"); 279 break; 280 case CodeGenOptions::NonLegacy: 281 Res.push_back("-fobjc-dispatch-method=non-legacy"); 282 break; 283 } 284 if (Opts.BoundsChecking > 0) 285 Res.push_back("-fbounds-checking=" + llvm::utostr(Opts.BoundsChecking)); 286 if (Opts.NumRegisterParameters) 287 Res.push_back("-mregparm", llvm::utostr(Opts.NumRegisterParameters)); 288 if (Opts.NoGlobalMerge) 289 Res.push_back("-mno-global-merge"); 290 if (Opts.NoExecStack) 291 Res.push_back("-mnoexecstack"); 292 if (Opts.RelaxAll) 293 Res.push_back("-mrelax-all"); 294 if (Opts.SaveTempLabels) 295 Res.push_back("-msave-temp-labels"); 296 if (Opts.NoDwarf2CFIAsm) 297 Res.push_back("-fno-dwarf2-cfi-asm"); 298 if (Opts.NoDwarfDirectoryAsm) 299 Res.push_back("-fno-dwarf-directory-asm"); 300 if (Opts.SoftFloat) 301 Res.push_back("-msoft-float"); 302 if (Opts.StrictEnums) 303 Res.push_back("-fstrict-enums"); 304 if (Opts.UnwindTables) 305 Res.push_back("-munwind-tables"); 306 if (Opts.RelocationModel != "pic") 307 Res.push_back("-mrelocation-model", Opts.RelocationModel); 308 if (!Opts.VerifyModule) 309 Res.push_back("-disable-llvm-verifier"); 310 for (unsigned i = 0, e = Opts.BackendOptions.size(); i != e; ++i) 311 Res.push_back("-backend-option", Opts.BackendOptions[i]); 312 313 switch (Opts.DefaultTLSModel) { 314 case CodeGenOptions::GeneralDynamicTLSModel: 315 break; 316 case CodeGenOptions::LocalDynamicTLSModel: 317 Res.push_back("-ftls-model=local-dynamic"); 318 break; 319 case CodeGenOptions::InitialExecTLSModel: 320 Res.push_back("-ftls-model=initial-exec"); 321 break; 322 case CodeGenOptions::LocalExecTLSModel: 323 Res.push_back("-ftls-model=local-exec"); 324 break; 325 } 326 } 327 328 static void DependencyOutputOptsToArgs(const DependencyOutputOptions &Opts, 329 ToArgsList &Res) { 330 if (Opts.IncludeSystemHeaders) 331 Res.push_back("-sys-header-deps"); 332 if (Opts.ShowHeaderIncludes) 333 Res.push_back("-H"); 334 if (!Opts.HeaderIncludeOutputFile.empty()) 335 Res.push_back("-header-include-file", Opts.HeaderIncludeOutputFile); 336 if (Opts.UsePhonyTargets) 337 Res.push_back("-MP"); 338 if (!Opts.OutputFile.empty()) 339 Res.push_back("-dependency-file", Opts.OutputFile); 340 for (unsigned i = 0, e = Opts.Targets.size(); i != e; ++i) 341 Res.push_back("-MT", Opts.Targets[i]); 342 } 343 344 static void DiagnosticOptsToArgs(const DiagnosticOptions &Opts, 345 ToArgsList &Res) { 346 if (Opts.IgnoreWarnings) 347 Res.push_back("-w"); 348 if (Opts.NoRewriteMacros) 349 Res.push_back("-Wno-rewrite-macros"); 350 if (Opts.Pedantic) 351 Res.push_back("-pedantic"); 352 if (Opts.PedanticErrors) 353 Res.push_back("-pedantic-errors"); 354 if (!Opts.ShowColumn) 355 Res.push_back("-fno-show-column"); 356 if (!Opts.ShowLocation) 357 Res.push_back("-fno-show-source-location"); 358 if (!Opts.ShowCarets) 359 Res.push_back("-fno-caret-diagnostics"); 360 if (!Opts.ShowFixits) 361 Res.push_back("-fno-diagnostics-fixit-info"); 362 if (Opts.ShowSourceRanges) 363 Res.push_back("-fdiagnostics-print-source-range-info"); 364 if (Opts.ShowParseableFixits) 365 Res.push_back("-fdiagnostics-parseable-fixits"); 366 if (Opts.ShowColors) 367 Res.push_back("-fcolor-diagnostics"); 368 if (Opts.VerifyDiagnostics) 369 Res.push_back("-verify"); 370 if (Opts.ShowOptionNames) 371 Res.push_back("-fdiagnostics-show-option"); 372 if (Opts.ShowCategories == 1) 373 Res.push_back("-fdiagnostics-show-category=id"); 374 else if (Opts.ShowCategories == 2) 375 Res.push_back("-fdiagnostics-show-category=name"); 376 switch (Opts.Format) { 377 case DiagnosticOptions::Clang: 378 Res.push_back("-fdiagnostics-format=clang"); break; 379 case DiagnosticOptions::Msvc: 380 Res.push_back("-fdiagnostics-format=msvc"); break; 381 case DiagnosticOptions::Vi: 382 Res.push_back("-fdiagnostics-format=vi"); break; 383 } 384 if (Opts.ErrorLimit) 385 Res.push_back("-ferror-limit", llvm::utostr(Opts.ErrorLimit)); 386 if (!Opts.DiagnosticLogFile.empty()) 387 Res.push_back("-diagnostic-log-file", Opts.DiagnosticLogFile); 388 if (Opts.MacroBacktraceLimit 389 != DiagnosticOptions::DefaultMacroBacktraceLimit) 390 Res.push_back("-fmacro-backtrace-limit", 391 llvm::utostr(Opts.MacroBacktraceLimit)); 392 if (Opts.TemplateBacktraceLimit 393 != DiagnosticOptions::DefaultTemplateBacktraceLimit) 394 Res.push_back("-ftemplate-backtrace-limit", 395 llvm::utostr(Opts.TemplateBacktraceLimit)); 396 if (Opts.ConstexprBacktraceLimit 397 != DiagnosticOptions::DefaultConstexprBacktraceLimit) 398 Res.push_back("-fconstexpr-backtrace-limit", 399 llvm::utostr(Opts.ConstexprBacktraceLimit)); 400 401 if (Opts.TabStop != DiagnosticOptions::DefaultTabStop) 402 Res.push_back("-ftabstop", llvm::utostr(Opts.TabStop)); 403 if (Opts.MessageLength) 404 Res.push_back("-fmessage-length", llvm::utostr(Opts.MessageLength)); 405 if (!Opts.DumpBuildInformation.empty()) 406 Res.push_back("-dump-build-information", Opts.DumpBuildInformation); 407 for (unsigned i = 0, e = Opts.Warnings.size(); i != e; ++i) 408 Res.push_back("-W" + Opts.Warnings[i]); 409 } 410 411 static const char *getInputKindName(InputKind Kind) { 412 switch (Kind) { 413 case IK_None: break; 414 case IK_AST: return "ast"; 415 case IK_Asm: return "assembler-with-cpp"; 416 case IK_C: return "c"; 417 case IK_CXX: return "c++"; 418 case IK_LLVM_IR: return "ir"; 419 case IK_ObjC: return "objective-c"; 420 case IK_ObjCXX: return "objective-c++"; 421 case IK_OpenCL: return "cl"; 422 case IK_CUDA: return "cuda"; 423 case IK_PreprocessedC: return "cpp-output"; 424 case IK_PreprocessedCXX: return "c++-cpp-output"; 425 case IK_PreprocessedObjC: return "objective-c-cpp-output"; 426 case IK_PreprocessedObjCXX:return "objective-c++-cpp-output"; 427 } 428 429 llvm_unreachable("Unexpected language kind!"); 430 } 431 432 static const char *getActionName(frontend::ActionKind Kind) { 433 switch (Kind) { 434 case frontend::PluginAction: 435 llvm_unreachable("Invalid kind!"); 436 437 case frontend::ASTDump: return "-ast-dump"; 438 case frontend::ASTDumpXML: return "-ast-dump-xml"; 439 case frontend::ASTPrint: return "-ast-print"; 440 case frontend::ASTView: return "-ast-view"; 441 case frontend::DumpRawTokens: return "-dump-raw-tokens"; 442 case frontend::DumpTokens: return "-dump-tokens"; 443 case frontend::EmitAssembly: return "-S"; 444 case frontend::EmitBC: return "-emit-llvm-bc"; 445 case frontend::EmitHTML: return "-emit-html"; 446 case frontend::EmitLLVM: return "-emit-llvm"; 447 case frontend::EmitLLVMOnly: return "-emit-llvm-only"; 448 case frontend::EmitCodeGenOnly: return "-emit-codegen-only"; 449 case frontend::EmitObj: return "-emit-obj"; 450 case frontend::FixIt: return "-fixit"; 451 case frontend::GenerateModule: return "-emit-module"; 452 case frontend::GeneratePCH: return "-emit-pch"; 453 case frontend::GeneratePTH: return "-emit-pth"; 454 case frontend::InitOnly: return "-init-only"; 455 case frontend::ParseSyntaxOnly: return "-fsyntax-only"; 456 case frontend::PrintDeclContext: return "-print-decl-contexts"; 457 case frontend::PrintPreamble: return "-print-preamble"; 458 case frontend::PrintPreprocessedInput: return "-E"; 459 case frontend::RewriteMacros: return "-rewrite-macros"; 460 case frontend::RewriteObjC: return "-rewrite-objc"; 461 case frontend::RewriteTest: return "-rewrite-test"; 462 case frontend::RunAnalysis: return "-analyze"; 463 case frontend::MigrateSource: return "-migrate"; 464 case frontend::RunPreprocessorOnly: return "-Eonly"; 465 } 466 467 llvm_unreachable("Unexpected language kind!"); 468 } 469 470 static void FileSystemOptsToArgs(const FileSystemOptions &Opts, ToArgsList &Res){ 471 if (!Opts.WorkingDir.empty()) 472 Res.push_back("-working-directory", Opts.WorkingDir); 473 } 474 475 static void CodeCompleteOptionsToArgs(const CodeCompleteOptions &Opts, 476 ToArgsList &Res) { 477 if (Opts.IncludeMacros) 478 Res.push_back("-code-completion-macros"); 479 if (Opts.IncludeCodePatterns) 480 Res.push_back("-code-completion-patterns"); 481 if (!Opts.IncludeGlobals) 482 Res.push_back("-no-code-completion-globals"); 483 if (Opts.IncludeBriefComments) 484 Res.push_back("-code-completion-brief-comments"); 485 } 486 487 static void FrontendOptsToArgs(const FrontendOptions &Opts, ToArgsList &Res) { 488 if (Opts.DisableFree) 489 Res.push_back("-disable-free"); 490 if (Opts.RelocatablePCH) 491 Res.push_back("-relocatable-pch"); 492 if (Opts.ShowHelp) 493 Res.push_back("-help"); 494 if (Opts.ShowStats) 495 Res.push_back("-print-stats"); 496 if (Opts.ShowTimers) 497 Res.push_back("-ftime-report"); 498 if (Opts.ShowVersion) 499 Res.push_back("-version"); 500 if (Opts.FixWhatYouCan) 501 Res.push_back("-fix-what-you-can"); 502 if (Opts.FixOnlyWarnings) 503 Res.push_back("-fix-only-warnings"); 504 if (Opts.FixAndRecompile) 505 Res.push_back("-fixit-recompile"); 506 if (Opts.FixToTemporaries) 507 Res.push_back("-fixit-to-temporary"); 508 switch (Opts.ARCMTAction) { 509 case FrontendOptions::ARCMT_None: 510 break; 511 case FrontendOptions::ARCMT_Check: 512 Res.push_back("-arcmt-check"); 513 break; 514 case FrontendOptions::ARCMT_Modify: 515 Res.push_back("-arcmt-modify"); 516 break; 517 case FrontendOptions::ARCMT_Migrate: 518 Res.push_back("-arcmt-migrate"); 519 break; 520 } 521 CodeCompleteOptionsToArgs(Opts.CodeCompleteOpts, Res); 522 if (!Opts.MTMigrateDir.empty()) 523 Res.push_back("-mt-migrate-directory", Opts.MTMigrateDir); 524 if (!Opts.ARCMTMigrateReportOut.empty()) 525 Res.push_back("-arcmt-migrate-report-output", Opts.ARCMTMigrateReportOut); 526 if (Opts.ARCMTMigrateEmitARCErrors) 527 Res.push_back("-arcmt-migrate-emit-errors"); 528 529 if (Opts.ObjCMTAction & ~FrontendOptions::ObjCMT_Literals) 530 Res.push_back("-objcmt-migrate-literals"); 531 if (Opts.ObjCMTAction & ~FrontendOptions::ObjCMT_Subscripting) 532 Res.push_back("-objcmt-migrate-subscripting"); 533 534 bool NeedLang = false; 535 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) 536 if (FrontendOptions::getInputKindForExtension(Opts.Inputs[i].File) != 537 Opts.Inputs[i].Kind) 538 NeedLang = true; 539 if (NeedLang) 540 Res.push_back("-x", getInputKindName(Opts.Inputs[0].Kind)); 541 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) { 542 assert((!NeedLang || Opts.Inputs[i].Kind == Opts.Inputs[0].Kind) && 543 "Unable to represent this input vector!"); 544 Res.push_back(Opts.Inputs[i].File); 545 } 546 547 if (!Opts.OutputFile.empty()) 548 Res.push_back("-o", Opts.OutputFile); 549 if (!Opts.CodeCompletionAt.FileName.empty()) 550 Res.push_back("-code-completion-at", 551 Opts.CodeCompletionAt.FileName + ":" + 552 llvm::utostr(Opts.CodeCompletionAt.Line) + ":" + 553 llvm::utostr(Opts.CodeCompletionAt.Column)); 554 if (Opts.ProgramAction != frontend::PluginAction) 555 Res.push_back(getActionName(Opts.ProgramAction)); 556 if (!Opts.ActionName.empty()) { 557 Res.push_back("-plugin", Opts.ActionName); 558 for(unsigned i = 0, e = Opts.PluginArgs.size(); i != e; ++i) 559 Res.push_back("-plugin-arg-" + Opts.ActionName, Opts.PluginArgs[i]); 560 } 561 for (unsigned i = 0, e = Opts.Plugins.size(); i != e; ++i) 562 Res.push_back("-load", Opts.Plugins[i]); 563 for (unsigned i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 564 Res.push_back("-add-plugin", Opts.AddPluginActions[i]); 565 for(unsigned ai = 0, ae = Opts.AddPluginArgs.size(); ai != ae; ++ai) 566 Res.push_back("-plugin-arg-" + Opts.AddPluginActions[i], 567 Opts.AddPluginArgs[i][ai]); 568 } 569 for (unsigned i = 0, e = Opts.ASTMergeFiles.size(); i != e; ++i) 570 Res.push_back("-ast-merge", Opts.ASTMergeFiles[i]); 571 for (unsigned i = 0, e = Opts.LLVMArgs.size(); i != e; ++i) 572 Res.push_back("-mllvm", Opts.LLVMArgs[i]); 573 if (!Opts.OverrideRecordLayoutsFile.empty()) 574 Res.push_back("-foverride-record-layout=" + Opts.OverrideRecordLayoutsFile); 575 } 576 577 static void HeaderSearchOptsToArgs(const HeaderSearchOptions &Opts, 578 ToArgsList &Res) { 579 if (Opts.Sysroot != "/") { 580 Res.push_back("-isysroot"); 581 Res.push_back(Opts.Sysroot); 582 } 583 584 /// User specified include entries. 585 for (unsigned i = 0, e = Opts.UserEntries.size(); i != e; ++i) { 586 const HeaderSearchOptions::Entry &E = Opts.UserEntries[i]; 587 if (E.IsFramework && (E.Group != frontend::Angled || !E.IsUserSupplied)) 588 llvm::report_fatal_error("Invalid option set!"); 589 if (E.IsUserSupplied) { 590 switch (E.Group) { 591 case frontend::After: 592 Res.push_back("-idirafter"); 593 break; 594 595 case frontend::Quoted: 596 Res.push_back("-iquote"); 597 break; 598 599 case frontend::System: 600 Res.push_back("-isystem"); 601 break; 602 603 case frontend::IndexHeaderMap: 604 Res.push_back("-index-header-map"); 605 Res.push_back(E.IsFramework? "-F" : "-I"); 606 break; 607 608 case frontend::CSystem: 609 Res.push_back("-c-isystem"); 610 break; 611 612 case frontend::CXXSystem: 613 Res.push_back("-cxx-isystem"); 614 break; 615 616 case frontend::ObjCSystem: 617 Res.push_back("-objc-isystem"); 618 break; 619 620 case frontend::ObjCXXSystem: 621 Res.push_back("-objcxx-isystem"); 622 break; 623 624 case frontend::Angled: 625 Res.push_back(E.IsFramework ? "-F" : "-I"); 626 break; 627 } 628 } else { 629 if (E.IsInternal) { 630 assert(E.Group == frontend::System && "Unexpected header search group"); 631 if (E.ImplicitExternC) 632 Res.push_back("-internal-externc-isystem"); 633 else 634 Res.push_back("-internal-isystem"); 635 } else { 636 if (E.Group != frontend::Angled && E.Group != frontend::System) 637 llvm::report_fatal_error("Invalid option set!"); 638 Res.push_back(E.Group == frontend::Angled ? "-iwithprefixbefore" : 639 "-iwithprefix"); 640 } 641 } 642 Res.push_back(E.Path); 643 } 644 645 /// User-specified system header prefixes. 646 for (unsigned i = 0, e = Opts.SystemHeaderPrefixes.size(); i != e; ++i) { 647 if (Opts.SystemHeaderPrefixes[i].IsSystemHeader) 648 Res.push_back("-isystem-prefix"); 649 else 650 Res.push_back("-ino-system-prefix"); 651 652 Res.push_back(Opts.SystemHeaderPrefixes[i].Prefix); 653 } 654 655 if (!Opts.ResourceDir.empty()) 656 Res.push_back("-resource-dir", Opts.ResourceDir); 657 if (!Opts.ModuleCachePath.empty()) 658 Res.push_back("-fmodule-cache-path", Opts.ModuleCachePath); 659 if (!Opts.UseStandardSystemIncludes) 660 Res.push_back("-nostdsysteminc"); 661 if (!Opts.UseStandardCXXIncludes) 662 Res.push_back("-nostdinc++"); 663 if (Opts.UseLibcxx) 664 Res.push_back("-stdlib=libc++"); 665 if (Opts.Verbose) 666 Res.push_back("-v"); 667 } 668 669 static void LangOptsToArgs(const LangOptions &Opts, ToArgsList &Res) { 670 LangOptions DefaultLangOpts; 671 672 // FIXME: Need to set -std to get all the implicit options. 673 674 // FIXME: We want to only pass options relative to the defaults, which 675 // requires constructing a target. :( 676 // 677 // It would be better to push the all target specific choices into the driver, 678 // so that everything below that was more uniform. 679 680 if (Opts.Trigraphs) 681 Res.push_back("-trigraphs"); 682 // Implicit based on the input kind: 683 // AsmPreprocessor, CPlusPlus, ObjC1, ObjC2, OpenCL 684 // Implicit based on the input language standard: 685 // BCPLComment, C99, CPlusPlus0x, Digraphs, GNUInline, ImplicitInt, GNUMode 686 if (Opts.DollarIdents) 687 Res.push_back("-fdollars-in-identifiers"); 688 if (Opts.GNUMode && !Opts.GNUKeywords) 689 Res.push_back("-fno-gnu-keywords"); 690 if (!Opts.GNUMode && Opts.GNUKeywords) 691 Res.push_back("-fgnu-keywords"); 692 if (Opts.MicrosoftExt) 693 Res.push_back("-fms-extensions"); 694 if (Opts.MicrosoftMode) 695 Res.push_back("-fms-compatibility"); 696 if (Opts.MSCVersion != 0) 697 Res.push_back("-fmsc-version=" + llvm::utostr(Opts.MSCVersion)); 698 if (Opts.Borland) 699 Res.push_back("-fborland-extensions"); 700 if (Opts.ObjCDefaultSynthProperties) 701 Res.push_back("-fobjc-default-synthesize-properties"); 702 // NoInline is implicit. 703 if (!Opts.CXXOperatorNames) 704 Res.push_back("-fno-operator-names"); 705 if (Opts.PascalStrings) 706 Res.push_back("-fpascal-strings"); 707 if (Opts.CatchUndefined) 708 Res.push_back("-fcatch-undefined-behavior"); 709 if (Opts.AddressSanitizer) 710 Res.push_back("-faddress-sanitizer"); 711 if (Opts.ThreadSanitizer) 712 Res.push_back("-fthread-sanitizer"); 713 if (Opts.WritableStrings) 714 Res.push_back("-fwritable-strings"); 715 if (Opts.ConstStrings) 716 Res.push_back("-fconst-strings"); 717 if (!Opts.LaxVectorConversions) 718 Res.push_back("-fno-lax-vector-conversions"); 719 if (Opts.AltiVec) 720 Res.push_back("-faltivec"); 721 if (Opts.Exceptions) 722 Res.push_back("-fexceptions"); 723 if (Opts.ObjCExceptions) 724 Res.push_back("-fobjc-exceptions"); 725 if (Opts.CXXExceptions) 726 Res.push_back("-fcxx-exceptions"); 727 if (Opts.SjLjExceptions) 728 Res.push_back("-fsjlj-exceptions"); 729 if (Opts.TraditionalCPP) 730 Res.push_back("-traditional-cpp"); 731 if (!Opts.RTTI) 732 Res.push_back("-fno-rtti"); 733 if (Opts.MSBitfields) 734 Res.push_back("-mms-bitfields"); 735 if (Opts.Freestanding) 736 Res.push_back("-ffreestanding"); 737 if (Opts.NoBuiltin) 738 Res.push_back("-fno-builtin"); 739 if (!Opts.AssumeSaneOperatorNew) 740 Res.push_back("-fno-assume-sane-operator-new"); 741 if (!Opts.ThreadsafeStatics) 742 Res.push_back("-fno-threadsafe-statics"); 743 if (Opts.POSIXThreads) 744 Res.push_back("-pthread"); 745 if (Opts.Blocks) 746 Res.push_back("-fblocks"); 747 if (Opts.BlocksRuntimeOptional) 748 Res.push_back("-fblocks-runtime-optional"); 749 if (Opts.Modules) 750 Res.push_back("-fmodules"); 751 if (Opts.EmitAllDecls) 752 Res.push_back("-femit-all-decls"); 753 if (Opts.MathErrno) 754 Res.push_back("-fmath-errno"); 755 switch (Opts.getSignedOverflowBehavior()) { 756 case LangOptions::SOB_Undefined: break; 757 case LangOptions::SOB_Defined: Res.push_back("-fwrapv"); break; 758 case LangOptions::SOB_Trapping: 759 Res.push_back("-ftrapv"); 760 if (!Opts.OverflowHandler.empty()) 761 Res.push_back("-ftrapv-handler", Opts.OverflowHandler); 762 break; 763 } 764 switch (Opts.getFPContractMode()) { 765 case LangOptions::FPC_Off: Res.push_back("-ffp-contract=off"); break; 766 case LangOptions::FPC_On: Res.push_back("-ffp-contract=on"); break; 767 case LangOptions::FPC_Fast: Res.push_back("-ffp-contract=fast"); break; 768 } 769 if (Opts.HeinousExtensions) 770 Res.push_back("-fheinous-gnu-extensions"); 771 // Optimize is implicit. 772 // OptimizeSize is implicit. 773 if (Opts.FastMath) 774 Res.push_back("-ffast-math"); 775 if (Opts.Static) 776 Res.push_back("-static-define"); 777 if (Opts.DumpRecordLayoutsSimple) 778 Res.push_back("-fdump-record-layouts-simple"); 779 else if (Opts.DumpRecordLayouts) 780 Res.push_back("-fdump-record-layouts"); 781 if (Opts.DumpVTableLayouts) 782 Res.push_back("-fdump-vtable-layouts"); 783 if (Opts.NoBitFieldTypeAlign) 784 Res.push_back("-fno-bitfield-type-alignment"); 785 if (Opts.PICLevel) 786 Res.push_back("-pic-level", llvm::utostr(Opts.PICLevel)); 787 if (Opts.PIELevel) 788 Res.push_back("-pie-level", llvm::utostr(Opts.PIELevel)); 789 if (Opts.ObjCGCBitmapPrint) 790 Res.push_back("-print-ivar-layout"); 791 if (Opts.NoConstantCFStrings) 792 Res.push_back("-fno-constant-cfstrings"); 793 if (!Opts.AccessControl) 794 Res.push_back("-fno-access-control"); 795 if (!Opts.CharIsSigned) 796 Res.push_back("-fno-signed-char"); 797 if (Opts.ShortWChar) 798 Res.push_back("-fshort-wchar"); 799 if (!Opts.ElideConstructors) 800 Res.push_back("-fno-elide-constructors"); 801 if (Opts.getGC() != LangOptions::NonGC) { 802 if (Opts.getGC() == LangOptions::HybridGC) { 803 Res.push_back("-fobjc-gc"); 804 } else { 805 assert(Opts.getGC() == LangOptions::GCOnly && "Invalid GC mode!"); 806 Res.push_back("-fobjc-gc-only"); 807 } 808 } 809 Res.push_back("-fobjc-runtime=" + Opts.ObjCRuntime.getAsString()); 810 if (Opts.ObjCAutoRefCount) 811 Res.push_back("-fobjc-arc"); 812 if (Opts.ObjCRuntimeHasWeak) 813 Res.push_back("-fobjc-runtime-has-weak"); 814 if (!Opts.ObjCInferRelatedResultType) 815 Res.push_back("-fno-objc-infer-related-result-type"); 816 817 if (Opts.AppleKext) 818 Res.push_back("-fapple-kext"); 819 820 if (Opts.getVisibilityMode() != DefaultVisibility) { 821 Res.push_back("-fvisibility"); 822 if (Opts.getVisibilityMode() == HiddenVisibility) { 823 Res.push_back("hidden"); 824 } else { 825 assert(Opts.getVisibilityMode() == ProtectedVisibility && 826 "Invalid visibility!"); 827 Res.push_back("protected"); 828 } 829 } 830 if (Opts.InlineVisibilityHidden) 831 Res.push_back("-fvisibility-inlines-hidden"); 832 833 if (Opts.getStackProtector() != 0) 834 Res.push_back("-stack-protector", llvm::utostr(Opts.getStackProtector())); 835 if (Opts.InstantiationDepth != DefaultLangOpts.InstantiationDepth) 836 Res.push_back("-ftemplate-depth", llvm::utostr(Opts.InstantiationDepth)); 837 if (Opts.ConstexprCallDepth != DefaultLangOpts.ConstexprCallDepth) 838 Res.push_back("-fconstexpr-depth", llvm::utostr(Opts.ConstexprCallDepth)); 839 if (!Opts.ObjCConstantStringClass.empty()) 840 Res.push_back("-fconstant-string-class", Opts.ObjCConstantStringClass); 841 if (Opts.FakeAddressSpaceMap) 842 Res.push_back("-ffake-address-space-map"); 843 if (Opts.ParseUnknownAnytype) 844 Res.push_back("-funknown-anytype"); 845 if (Opts.DebuggerSupport) 846 Res.push_back("-fdebugger-support"); 847 if (Opts.DebuggerCastResultToId) 848 Res.push_back("-fdebugger-cast-result-to-id"); 849 if (Opts.DebuggerObjCLiteral) 850 Res.push_back("-fdebugger-objc-literal"); 851 if (Opts.DelayedTemplateParsing) 852 Res.push_back("-fdelayed-template-parsing"); 853 if (Opts.Deprecated) 854 Res.push_back("-fdeprecated-macro"); 855 if (Opts.ApplePragmaPack) 856 Res.push_back("-fapple-pragma-pack"); 857 if (!Opts.CurrentModule.empty()) 858 Res.push_back("-fmodule-name=" + Opts.CurrentModule); 859 } 860 861 static void PreprocessorOptsToArgs(const PreprocessorOptions &Opts, 862 ToArgsList &Res) { 863 for (unsigned i = 0, e = Opts.Macros.size(); i != e; ++i) 864 Res.push_back(std::string(Opts.Macros[i].second ? "-U" : "-D") + 865 Opts.Macros[i].first); 866 for (unsigned i = 0, e = Opts.Includes.size(); i != e; ++i) { 867 // FIXME: We need to avoid reincluding the implicit PCH and PTH includes. 868 Res.push_back("-include", Opts.Includes[i]); 869 } 870 for (unsigned i = 0, e = Opts.MacroIncludes.size(); i != e; ++i) 871 Res.push_back("-imacros", Opts.MacroIncludes[i]); 872 if (!Opts.UsePredefines) 873 Res.push_back("-undef"); 874 if (Opts.DetailedRecord) 875 Res.push_back("-detailed-preprocessing-record"); 876 if (!Opts.ImplicitPCHInclude.empty()) 877 Res.push_back("-include-pch", Opts.ImplicitPCHInclude); 878 if (!Opts.ImplicitPTHInclude.empty()) 879 Res.push_back("-include-pth", Opts.ImplicitPTHInclude); 880 if (!Opts.TokenCache.empty()) { 881 if (Opts.ImplicitPTHInclude.empty()) 882 Res.push_back("-token-cache", Opts.TokenCache); 883 else 884 assert(Opts.ImplicitPTHInclude == Opts.TokenCache && 885 "Unsupported option combination!"); 886 } 887 for (unsigned i = 0, e = Opts.ChainedIncludes.size(); i != e; ++i) 888 Res.push_back("-chain-include", Opts.ChainedIncludes[i]); 889 for (unsigned i = 0, e = Opts.RemappedFiles.size(); i != e; ++i) { 890 Res.push_back("-remap-file", Opts.RemappedFiles[i].first + ";" + 891 Opts.RemappedFiles[i].second); 892 } 893 } 894 895 static void PreprocessorOutputOptsToArgs(const PreprocessorOutputOptions &Opts, 896 ToArgsList &Res) { 897 if (!Opts.ShowCPP && !Opts.ShowMacros) 898 llvm::report_fatal_error("Invalid option combination!"); 899 900 if (Opts.ShowCPP && Opts.ShowMacros) 901 Res.push_back("-dD"); 902 else if (!Opts.ShowCPP && Opts.ShowMacros) 903 Res.push_back("-dM"); 904 905 if (!Opts.ShowLineMarkers) 906 Res.push_back("-P"); 907 if (Opts.ShowComments) 908 Res.push_back("-C"); 909 if (Opts.ShowMacroComments) 910 Res.push_back("-CC"); 911 } 912 913 static void TargetOptsToArgs(const TargetOptions &Opts, 914 ToArgsList &Res) { 915 Res.push_back("-triple"); 916 Res.push_back(Opts.Triple); 917 if (!Opts.CPU.empty()) 918 Res.push_back("-target-cpu", Opts.CPU); 919 if (!Opts.ABI.empty()) 920 Res.push_back("-target-abi", Opts.ABI); 921 if (!Opts.LinkerVersion.empty()) 922 Res.push_back("-target-linker-version", Opts.LinkerVersion); 923 if (!Opts.CXXABI.empty()) 924 Res.push_back("-cxx-abi", Opts.CXXABI); 925 for (unsigned i = 0, e = Opts.Features.size(); i != e; ++i) 926 Res.push_back("-target-feature", Opts.Features[i]); 927 } 928 929 void CompilerInvocation::toArgs(std::vector<std::string> &Res) const { 930 ToArgsList List(Res); 931 AnalyzerOptsToArgs(getAnalyzerOpts(), List); 932 CodeGenOptsToArgs(getCodeGenOpts(), List); 933 DependencyOutputOptsToArgs(getDependencyOutputOpts(), List); 934 DiagnosticOptsToArgs(getDiagnosticOpts(), List); 935 FileSystemOptsToArgs(getFileSystemOpts(), List); 936 FrontendOptsToArgs(getFrontendOpts(), List); 937 HeaderSearchOptsToArgs(getHeaderSearchOpts(), List); 938 LangOptsToArgs(*getLangOpts(), List); 939 PreprocessorOptsToArgs(getPreprocessorOpts(), List); 940 PreprocessorOutputOptsToArgs(getPreprocessorOutputOpts(), List); 941 TargetOptsToArgs(getTargetOpts(), List); 942 } 943 944 //===----------------------------------------------------------------------===// 945 // Deserialization (to args) 946 //===----------------------------------------------------------------------===// 947 948 using namespace clang::driver; 949 using namespace clang::driver::options; 950 951 // 952 953 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 954 DiagnosticsEngine &Diags) { 955 unsigned DefaultOpt = 0; 956 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 957 DefaultOpt = 2; 958 959 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 960 if (A->getOption().matches(options::OPT_O0)) 961 return 0; 962 963 assert (A->getOption().matches(options::OPT_O)); 964 965 llvm::StringRef S(A->getValue(Args)); 966 if (S == "s" || S == "z" || S.empty()) 967 return 2; 968 969 return Args.getLastArgIntValue(OPT_O, DefaultOpt, Diags); 970 } 971 972 return DefaultOpt; 973 } 974 975 static unsigned getOptimizationLevelSize(ArgList &Args, InputKind IK, 976 DiagnosticsEngine &Diags) { 977 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 978 if (A->getOption().matches(options::OPT_O)) { 979 switch (A->getValue(Args)[0]) { 980 default: 981 return 0; 982 case 's': 983 return 1; 984 case 'z': 985 return 2; 986 } 987 } 988 } 989 return 0; 990 } 991 992 static void addWarningArgs(ArgList &Args, std::vector<std::string> &Warnings) { 993 for (arg_iterator I = Args.filtered_begin(OPT_W_Group), 994 E = Args.filtered_end(); I != E; ++I) { 995 Arg *A = *I; 996 // If the argument is a pure flag, add its name (minus the "-W" at the beginning) 997 // to the warning list. Else, add its value (for the OPT_W case). 998 if (A->getOption().getKind() == Option::FlagClass) { 999 Warnings.push_back(A->getOption().getName().substr(2)); 1000 } else { 1001 for (unsigned Idx = 0, End = A->getNumValues(); 1002 Idx < End; ++Idx) { 1003 StringRef V = A->getValue(Args, Idx); 1004 // "-Wl," and such are not warning options. 1005 // FIXME: Should be handled by putting these in separate flags. 1006 if (V.startswith("l,") || V.startswith("a,") || V.startswith("p,")) 1007 continue; 1008 1009 Warnings.push_back(V); 1010 } 1011 } 1012 } 1013 } 1014 1015 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 1016 DiagnosticsEngine &Diags) { 1017 using namespace options; 1018 bool Success = true; 1019 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 1020 StringRef Name = A->getValue(Args); 1021 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 1022 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 1023 .Case(CMDFLAG, NAME##Model) 1024 #include "clang/Frontend/Analyses.def" 1025 .Default(NumStores); 1026 if (Value == NumStores) { 1027 Diags.Report(diag::err_drv_invalid_value) 1028 << A->getAsString(Args) << Name; 1029 Success = false; 1030 } else { 1031 Opts.AnalysisStoreOpt = Value; 1032 } 1033 } 1034 1035 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 1036 StringRef Name = A->getValue(Args); 1037 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 1038 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 1039 .Case(CMDFLAG, NAME##Model) 1040 #include "clang/Frontend/Analyses.def" 1041 .Default(NumConstraints); 1042 if (Value == NumConstraints) { 1043 Diags.Report(diag::err_drv_invalid_value) 1044 << A->getAsString(Args) << Name; 1045 Success = false; 1046 } else { 1047 Opts.AnalysisConstraintsOpt = Value; 1048 } 1049 } 1050 1051 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 1052 StringRef Name = A->getValue(Args); 1053 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 1054 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \ 1055 .Case(CMDFLAG, PD_##NAME) 1056 #include "clang/Frontend/Analyses.def" 1057 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 1058 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 1059 Diags.Report(diag::err_drv_invalid_value) 1060 << A->getAsString(Args) << Name; 1061 Success = false; 1062 } else { 1063 Opts.AnalysisDiagOpt = Value; 1064 } 1065 } 1066 1067 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 1068 StringRef Name = A->getValue(Args); 1069 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 1070 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1071 .Case(CMDFLAG, NAME) 1072 #include "clang/Frontend/Analyses.def" 1073 .Default(NumPurgeModes); 1074 if (Value == NumPurgeModes) { 1075 Diags.Report(diag::err_drv_invalid_value) 1076 << A->getAsString(Args) << Name; 1077 Success = false; 1078 } else { 1079 Opts.AnalysisPurgeOpt = Value; 1080 } 1081 } 1082 1083 if (Arg *A = Args.getLastArg(OPT_analyzer_ipa)) { 1084 StringRef Name = A->getValue(Args); 1085 AnalysisIPAMode Value = llvm::StringSwitch<AnalysisIPAMode>(Name) 1086 #define ANALYSIS_IPA(NAME, CMDFLAG, DESC) \ 1087 .Case(CMDFLAG, NAME) 1088 #include "clang/Frontend/Analyses.def" 1089 .Default(NumIPAModes); 1090 if (Value == NumIPAModes) { 1091 Diags.Report(diag::err_drv_invalid_value) 1092 << A->getAsString(Args) << Name; 1093 Success = false; 1094 } else { 1095 Opts.IPAMode = Value; 1096 } 1097 } 1098 1099 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 1100 StringRef Name = A->getValue(Args); 1101 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 1102 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1103 .Case(CMDFLAG, NAME) 1104 #include "clang/Frontend/Analyses.def" 1105 .Default(NumInliningModes); 1106 if (Value == NumInliningModes) { 1107 Diags.Report(diag::err_drv_invalid_value) 1108 << A->getAsString(Args) << Name; 1109 Success = false; 1110 } else { 1111 Opts.InliningMode = Value; 1112 } 1113 } 1114 1115 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 1116 Opts.VisualizeEGDot = Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 1117 Opts.VisualizeEGUbi = Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 1118 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 1119 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 1120 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 1121 Opts.AnalyzeNestedBlocks = 1122 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 1123 Opts.EagerlyAssume = Args.hasArg(OPT_analyzer_eagerly_assume); 1124 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 1125 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 1126 Opts.CFGAddImplicitDtors = Args.hasArg(OPT_analysis_CFGAddImplicitDtors); 1127 Opts.CFGAddInitializers = Args.hasArg(OPT_analysis_CFGAddInitializers); 1128 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 1129 Opts.MaxNodes = Args.getLastArgIntValue(OPT_analyzer_max_nodes, 150000,Diags); 1130 Opts.MaxLoop = Args.getLastArgIntValue(OPT_analyzer_max_loop, 4, Diags); 1131 Opts.EagerlyTrimEGraph = !Args.hasArg(OPT_analyzer_no_eagerly_trim_egraph); 1132 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 1133 Opts.InlineMaxStackDepth = 1134 Args.getLastArgIntValue(OPT_analyzer_inline_max_stack_depth, 1135 Opts.InlineMaxStackDepth, Diags); 1136 Opts.InlineMaxFunctionSize = 1137 Args.getLastArgIntValue(OPT_analyzer_inline_max_function_size, 1138 Opts.InlineMaxFunctionSize, Diags); 1139 1140 Opts.CheckersControlList.clear(); 1141 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker, 1142 OPT_analyzer_disable_checker), 1143 ie = Args.filtered_end(); it != ie; ++it) { 1144 const Arg *A = *it; 1145 A->claim(); 1146 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 1147 // We can have a list of comma separated checker names, e.g: 1148 // '-analyzer-checker=cocoa,unix' 1149 StringRef checkerList = A->getValue(Args); 1150 SmallVector<StringRef, 4> checkers; 1151 checkerList.split(checkers, ","); 1152 for (unsigned i = 0, e = checkers.size(); i != e; ++i) 1153 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable)); 1154 } 1155 1156 return Success; 1157 } 1158 1159 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 1160 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 1161 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 1162 return true; 1163 } 1164 1165 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 1166 DiagnosticsEngine &Diags) { 1167 using namespace options; 1168 bool Success = true; 1169 1170 unsigned OptLevel = getOptimizationLevel(Args, IK, Diags); 1171 if (OptLevel > 3) { 1172 Diags.Report(diag::err_drv_invalid_value) 1173 << Args.getLastArg(OPT_O)->getAsString(Args) << OptLevel; 1174 OptLevel = 3; 1175 Success = false; 1176 } 1177 Opts.OptimizationLevel = OptLevel; 1178 1179 // We must always run at least the always inlining pass. 1180 Opts.Inlining = (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 1181 : CodeGenOptions::OnlyAlwaysInlining; 1182 // -fno-inline-functions overrides OptimizationLevel > 1. 1183 Opts.NoInline = Args.hasArg(OPT_fno_inline); 1184 Opts.Inlining = Args.hasArg(OPT_fno_inline_functions) ? 1185 CodeGenOptions::OnlyAlwaysInlining : Opts.Inlining; 1186 1187 if (Args.hasArg(OPT_gline_tables_only)) { 1188 Opts.DebugInfo = CodeGenOptions::DebugLineTablesOnly; 1189 } else if (Args.hasArg(OPT_g_Flag)) { 1190 if (Args.hasFlag(OPT_flimit_debug_info, OPT_fno_limit_debug_info, true)) 1191 Opts.DebugInfo = CodeGenOptions::LimitedDebugInfo; 1192 else 1193 Opts.DebugInfo = CodeGenOptions::FullDebugInfo; 1194 } 1195 1196 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 1197 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 1198 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 1199 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 1200 OPT_fuse_register_sized_bitfield_access); 1201 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 1202 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 1203 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 1204 Opts.NoCommon = Args.hasArg(OPT_fno_common); 1205 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 1206 Opts.OptimizeSize = getOptimizationLevelSize(Args, IK, Diags); 1207 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 1208 Args.hasArg(OPT_ffreestanding)); 1209 Opts.UnrollLoops = Args.hasArg(OPT_funroll_loops) || 1210 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize); 1211 1212 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 1213 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 1214 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device); 1215 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 1216 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 1217 Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model); 1218 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 1219 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 1220 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 1221 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 1222 Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables); 1223 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 1224 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 1225 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 1226 Args.hasArg(OPT_cl_finite_math_only)|| 1227 Args.hasArg(OPT_cl_fast_relaxed_math)); 1228 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 1229 Args.hasArg(OPT_cl_finite_math_only)|| 1230 Args.hasArg(OPT_cl_fast_relaxed_math)); 1231 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 1232 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 1233 Opts.NumRegisterParameters = Args.getLastArgIntValue(OPT_mregparm, 0, Diags); 1234 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge); 1235 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 1236 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 1237 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 1238 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 1239 Opts.NoDwarf2CFIAsm = Args.hasArg(OPT_fno_dwarf2_cfi_asm); 1240 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 1241 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 1242 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 1243 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 1244 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 1245 Args.hasArg(OPT_cl_fast_relaxed_math); 1246 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 1247 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 1248 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 1249 Opts.BoundsChecking = Args.getLastArgIntValue(OPT_fbounds_checking_EQ, 0, 1250 Diags); 1251 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 1252 1253 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 1254 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 1255 1256 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 1257 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1258 1259 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1260 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1261 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1262 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1263 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1264 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 1265 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1266 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 1267 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1268 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1269 StringRef Val = A->getValue(Args); 1270 Val.getAsInteger(10, Opts.StackAlignment); 1271 } 1272 1273 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1274 StringRef Name = A->getValue(Args); 1275 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1276 .Case("legacy", CodeGenOptions::Legacy) 1277 .Case("non-legacy", CodeGenOptions::NonLegacy) 1278 .Case("mixed", CodeGenOptions::Mixed) 1279 .Default(~0U); 1280 if (Method == ~0U) { 1281 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1282 Success = false; 1283 } else { 1284 Opts.ObjCDispatchMethod = Method; 1285 } 1286 } 1287 1288 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1289 StringRef Name = A->getValue(Args); 1290 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1291 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1292 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1293 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1294 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1295 .Default(~0U); 1296 if (Model == ~0U) { 1297 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1298 Success = false; 1299 } else { 1300 Opts.DefaultTLSModel = static_cast<CodeGenOptions::TLSModel>(Model); 1301 } 1302 } 1303 1304 return Success; 1305 } 1306 1307 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1308 ArgList &Args) { 1309 using namespace options; 1310 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1311 Opts.Targets = Args.getAllArgValues(OPT_MT); 1312 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1313 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1314 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1315 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1316 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1317 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1318 } 1319 1320 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1321 DiagnosticsEngine *Diags) { 1322 using namespace options; 1323 bool Success = true; 1324 1325 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1326 Opts.DiagnosticSerializationFile = 1327 Args.getLastArgValue(OPT_diagnostic_serialized_file); 1328 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1329 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1330 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1331 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1332 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1333 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 1334 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1335 OPT_fno_show_column, 1336 /*Default=*/true); 1337 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1338 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1339 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 1340 1341 // Default behavior is to not to show note include stacks. 1342 Opts.ShowNoteIncludeStack = false; 1343 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1344 OPT_fno_diagnostics_show_note_include_stack)) 1345 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1346 Opts.ShowNoteIncludeStack = true; 1347 1348 StringRef ShowOverloads = 1349 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1350 if (ShowOverloads == "best") 1351 Opts.ShowOverloads = DiagnosticsEngine::Ovl_Best; 1352 else if (ShowOverloads == "all") 1353 Opts.ShowOverloads = DiagnosticsEngine::Ovl_All; 1354 else { 1355 Success = false; 1356 if (Diags) 1357 Diags->Report(diag::err_drv_invalid_value) 1358 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1359 << ShowOverloads; 1360 } 1361 1362 StringRef ShowCategory = 1363 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1364 if (ShowCategory == "none") 1365 Opts.ShowCategories = 0; 1366 else if (ShowCategory == "id") 1367 Opts.ShowCategories = 1; 1368 else if (ShowCategory == "name") 1369 Opts.ShowCategories = 2; 1370 else { 1371 Success = false; 1372 if (Diags) 1373 Diags->Report(diag::err_drv_invalid_value) 1374 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1375 << ShowCategory; 1376 } 1377 1378 StringRef Format = 1379 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1380 if (Format == "clang") 1381 Opts.Format = DiagnosticOptions::Clang; 1382 else if (Format == "msvc") 1383 Opts.Format = DiagnosticOptions::Msvc; 1384 else if (Format == "vi") 1385 Opts.Format = DiagnosticOptions::Vi; 1386 else { 1387 Success = false; 1388 if (Diags) 1389 Diags->Report(diag::err_drv_invalid_value) 1390 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1391 << Format; 1392 } 1393 1394 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1395 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1396 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1397 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1398 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1399 Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags); 1400 Opts.MacroBacktraceLimit 1401 = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit, 1402 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1403 Opts.TemplateBacktraceLimit 1404 = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit, 1405 DiagnosticOptions::DefaultTemplateBacktraceLimit, 1406 Diags); 1407 Opts.ConstexprBacktraceLimit 1408 = Args.getLastArgIntValue(OPT_fconstexpr_backtrace_limit, 1409 DiagnosticOptions::DefaultConstexprBacktraceLimit, 1410 Diags); 1411 Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop, 1412 DiagnosticOptions::DefaultTabStop, Diags); 1413 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1414 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1415 if (Diags) 1416 Diags->Report(diag::warn_ignoring_ftabstop_value) 1417 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1418 } 1419 Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags); 1420 Opts.DumpBuildInformation = Args.getLastArgValue(OPT_dump_build_information); 1421 addWarningArgs(Args, Opts.Warnings); 1422 1423 return Success; 1424 } 1425 1426 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1427 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1428 } 1429 1430 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1431 DiagnosticsEngine &Diags) { 1432 using namespace options; 1433 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1434 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1435 switch (A->getOption().getID()) { 1436 default: 1437 llvm_unreachable("Invalid option in group!"); 1438 case OPT_ast_dump: 1439 Opts.ProgramAction = frontend::ASTDump; break; 1440 case OPT_ast_dump_xml: 1441 Opts.ProgramAction = frontend::ASTDumpXML; break; 1442 case OPT_ast_print: 1443 Opts.ProgramAction = frontend::ASTPrint; break; 1444 case OPT_ast_view: 1445 Opts.ProgramAction = frontend::ASTView; break; 1446 case OPT_dump_raw_tokens: 1447 Opts.ProgramAction = frontend::DumpRawTokens; break; 1448 case OPT_dump_tokens: 1449 Opts.ProgramAction = frontend::DumpTokens; break; 1450 case OPT_S: 1451 Opts.ProgramAction = frontend::EmitAssembly; break; 1452 case OPT_emit_llvm_bc: 1453 Opts.ProgramAction = frontend::EmitBC; break; 1454 case OPT_emit_html: 1455 Opts.ProgramAction = frontend::EmitHTML; break; 1456 case OPT_emit_llvm: 1457 Opts.ProgramAction = frontend::EmitLLVM; break; 1458 case OPT_emit_llvm_only: 1459 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1460 case OPT_emit_codegen_only: 1461 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1462 case OPT_emit_obj: 1463 Opts.ProgramAction = frontend::EmitObj; break; 1464 case OPT_fixit_EQ: 1465 Opts.FixItSuffix = A->getValue(Args); 1466 // fall-through! 1467 case OPT_fixit: 1468 Opts.ProgramAction = frontend::FixIt; break; 1469 case OPT_emit_module: 1470 Opts.ProgramAction = frontend::GenerateModule; break; 1471 case OPT_emit_pch: 1472 Opts.ProgramAction = frontend::GeneratePCH; break; 1473 case OPT_emit_pth: 1474 Opts.ProgramAction = frontend::GeneratePTH; break; 1475 case OPT_init_only: 1476 Opts.ProgramAction = frontend::InitOnly; break; 1477 case OPT_fsyntax_only: 1478 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1479 case OPT_print_decl_contexts: 1480 Opts.ProgramAction = frontend::PrintDeclContext; break; 1481 case OPT_print_preamble: 1482 Opts.ProgramAction = frontend::PrintPreamble; break; 1483 case OPT_E: 1484 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1485 case OPT_rewrite_macros: 1486 Opts.ProgramAction = frontend::RewriteMacros; break; 1487 case OPT_rewrite_objc: 1488 Opts.ProgramAction = frontend::RewriteObjC; break; 1489 case OPT_rewrite_test: 1490 Opts.ProgramAction = frontend::RewriteTest; break; 1491 case OPT_analyze: 1492 Opts.ProgramAction = frontend::RunAnalysis; break; 1493 case OPT_migrate: 1494 Opts.ProgramAction = frontend::MigrateSource; break; 1495 case OPT_Eonly: 1496 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1497 } 1498 } 1499 1500 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1501 Opts.Plugins.push_back(A->getValue(Args,0)); 1502 Opts.ProgramAction = frontend::PluginAction; 1503 Opts.ActionName = A->getValue(Args); 1504 1505 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 1506 end = Args.filtered_end(); it != end; ++it) { 1507 if ((*it)->getValue(Args, 0) == Opts.ActionName) 1508 Opts.PluginArgs.push_back((*it)->getValue(Args, 1)); 1509 } 1510 } 1511 1512 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1513 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 1514 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 1515 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 1516 end = Args.filtered_end(); it != end; ++it) { 1517 if ((*it)->getValue(Args, 0) == Opts.AddPluginActions[i]) 1518 Opts.AddPluginArgs[i].push_back((*it)->getValue(Args, 1)); 1519 } 1520 } 1521 1522 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1523 Opts.CodeCompletionAt = 1524 ParsedSourceLocation::FromString(A->getValue(Args)); 1525 if (Opts.CodeCompletionAt.FileName.empty()) 1526 Diags.Report(diag::err_drv_invalid_value) 1527 << A->getAsString(Args) << A->getValue(Args); 1528 } 1529 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1530 1531 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1532 Opts.Plugins = Args.getAllArgValues(OPT_load); 1533 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1534 Opts.ShowHelp = Args.hasArg(OPT_help); 1535 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1536 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1537 Opts.ShowVersion = Args.hasArg(OPT_version); 1538 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1539 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1540 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1541 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1542 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1543 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1544 1545 Opts.CodeCompleteOpts.IncludeMacros 1546 = Args.hasArg(OPT_code_completion_macros); 1547 Opts.CodeCompleteOpts.IncludeCodePatterns 1548 = Args.hasArg(OPT_code_completion_patterns); 1549 Opts.CodeCompleteOpts.IncludeGlobals 1550 = !Args.hasArg(OPT_no_code_completion_globals); 1551 Opts.CodeCompleteOpts.IncludeBriefComments 1552 = Args.hasArg(OPT_code_completion_brief_comments); 1553 1554 Opts.OverrideRecordLayoutsFile 1555 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1556 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1557 OPT_arcmt_modify, 1558 OPT_arcmt_migrate)) { 1559 switch (A->getOption().getID()) { 1560 default: 1561 llvm_unreachable("missed a case"); 1562 case OPT_arcmt_check: 1563 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1564 break; 1565 case OPT_arcmt_modify: 1566 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1567 break; 1568 case OPT_arcmt_migrate: 1569 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1570 break; 1571 } 1572 } 1573 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1574 Opts.ARCMTMigrateReportOut 1575 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1576 Opts.ARCMTMigrateEmitARCErrors 1577 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1578 1579 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1580 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1581 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1582 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1583 1584 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1585 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1586 Diags.Report(diag::err_drv_argument_not_allowed_with) 1587 << "ARC migration" << "ObjC migration"; 1588 } 1589 1590 InputKind DashX = IK_None; 1591 if (const Arg *A = Args.getLastArg(OPT_x)) { 1592 DashX = llvm::StringSwitch<InputKind>(A->getValue(Args)) 1593 .Case("c", IK_C) 1594 .Case("cl", IK_OpenCL) 1595 .Case("cuda", IK_CUDA) 1596 .Case("c++", IK_CXX) 1597 .Case("objective-c", IK_ObjC) 1598 .Case("objective-c++", IK_ObjCXX) 1599 .Case("cpp-output", IK_PreprocessedC) 1600 .Case("assembler-with-cpp", IK_Asm) 1601 .Case("c++-cpp-output", IK_PreprocessedCXX) 1602 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1603 .Case("objc-cpp-output", IK_PreprocessedObjC) 1604 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1605 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1606 .Case("c-header", IK_C) 1607 .Case("cl-header", IK_OpenCL) 1608 .Case("objective-c-header", IK_ObjC) 1609 .Case("c++-header", IK_CXX) 1610 .Case("objective-c++-header", IK_ObjCXX) 1611 .Case("ast", IK_AST) 1612 .Case("ir", IK_LLVM_IR) 1613 .Default(IK_None); 1614 if (DashX == IK_None) 1615 Diags.Report(diag::err_drv_invalid_value) 1616 << A->getAsString(Args) << A->getValue(Args); 1617 } 1618 1619 // '-' is the default input if none is given. 1620 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1621 Opts.Inputs.clear(); 1622 if (Inputs.empty()) 1623 Inputs.push_back("-"); 1624 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1625 InputKind IK = DashX; 1626 if (IK == IK_None) { 1627 IK = FrontendOptions::getInputKindForExtension( 1628 StringRef(Inputs[i]).rsplit('.').second); 1629 // FIXME: Remove this hack. 1630 if (i == 0) 1631 DashX = IK; 1632 } 1633 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK)); 1634 } 1635 1636 return DashX; 1637 } 1638 1639 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1640 void *MainAddr) { 1641 llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr); 1642 1643 if (!P.isEmpty()) { 1644 P.eraseComponent(); // Remove /clang from foo/bin/clang 1645 P.eraseComponent(); // Remove /bin from foo/bin 1646 1647 // Get foo/lib/clang/<version>/include 1648 P.appendComponent("lib"); 1649 P.appendComponent("clang"); 1650 P.appendComponent(CLANG_VERSION_STRING); 1651 } 1652 1653 return P.str(); 1654 } 1655 1656 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1657 using namespace options; 1658 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1659 Opts.Verbose = Args.hasArg(OPT_v); 1660 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1661 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1662 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1663 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1664 Opts.UseLibcxx = (strcmp(A->getValue(Args), "libc++") == 0); 1665 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1666 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodule_cache_path); 1667 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1668 1669 // Add -I..., -F..., and -index-header-map options in order. 1670 bool IsIndexHeaderMap = false; 1671 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F, 1672 OPT_index_header_map), 1673 ie = Args.filtered_end(); it != ie; ++it) { 1674 if ((*it)->getOption().matches(OPT_index_header_map)) { 1675 // -index-header-map applies to the next -I or -F. 1676 IsIndexHeaderMap = true; 1677 continue; 1678 } 1679 1680 frontend::IncludeDirGroup Group 1681 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled; 1682 1683 Opts.AddPath((*it)->getValue(Args), Group, true, 1684 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), false); 1685 IsIndexHeaderMap = false; 1686 } 1687 1688 // Add -iprefix/-iwith-prefix/-iwithprefixbefore options. 1689 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1690 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, 1691 OPT_iwithprefixbefore), 1692 ie = Args.filtered_end(); it != ie; ++it) { 1693 const Arg *A = *it; 1694 if (A->getOption().matches(OPT_iprefix)) 1695 Prefix = A->getValue(Args); 1696 else if (A->getOption().matches(OPT_iwithprefix)) 1697 Opts.AddPath(Prefix.str() + A->getValue(Args), 1698 frontend::System, false, false, false); 1699 else 1700 Opts.AddPath(Prefix.str() + A->getValue(Args), 1701 frontend::Angled, false, false, false); 1702 } 1703 1704 for (arg_iterator it = Args.filtered_begin(OPT_idirafter), 1705 ie = Args.filtered_end(); it != ie; ++it) 1706 Opts.AddPath((*it)->getValue(Args), frontend::After, true, false, false); 1707 for (arg_iterator it = Args.filtered_begin(OPT_iquote), 1708 ie = Args.filtered_end(); it != ie; ++it) 1709 Opts.AddPath((*it)->getValue(Args), frontend::Quoted, true, false, false); 1710 for (arg_iterator it = Args.filtered_begin(OPT_isystem, 1711 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it) 1712 Opts.AddPath((*it)->getValue(Args), frontend::System, true, false, 1713 !(*it)->getOption().matches(OPT_iwithsysroot)); 1714 for (arg_iterator it = Args.filtered_begin(OPT_iframework), 1715 ie = Args.filtered_end(); it != ie; ++it) 1716 Opts.AddPath((*it)->getValue(Args), frontend::System, true, true, 1717 true); 1718 1719 // Add the paths for the various language specific isystem flags. 1720 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem), 1721 ie = Args.filtered_end(); it != ie; ++it) 1722 Opts.AddPath((*it)->getValue(Args), frontend::CSystem, true, false, true); 1723 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem), 1724 ie = Args.filtered_end(); it != ie; ++it) 1725 Opts.AddPath((*it)->getValue(Args), frontend::CXXSystem, true, false, true); 1726 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem), 1727 ie = Args.filtered_end(); it != ie; ++it) 1728 Opts.AddPath((*it)->getValue(Args), frontend::ObjCSystem, true, false,true); 1729 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem), 1730 ie = Args.filtered_end(); it != ie; ++it) 1731 Opts.AddPath((*it)->getValue(Args), frontend::ObjCXXSystem, true, false, 1732 true); 1733 1734 // Add the internal paths from a driver that detects standard include paths. 1735 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem, 1736 OPT_internal_externc_isystem), 1737 E = Args.filtered_end(); 1738 I != E; ++I) 1739 Opts.AddPath((*I)->getValue(Args), frontend::System, 1740 false, false, /*IgnoreSysRoot=*/true, /*IsInternal=*/true, 1741 (*I)->getOption().matches(OPT_internal_externc_isystem)); 1742 1743 // Add the path prefixes which are implicitly treated as being system headers. 1744 for (arg_iterator I = Args.filtered_begin(OPT_isystem_prefix, 1745 OPT_ino_system_prefix), 1746 E = Args.filtered_end(); 1747 I != E; ++I) 1748 Opts.AddSystemHeaderPrefix((*I)->getValue(Args), 1749 (*I)->getOption().matches(OPT_isystem_prefix)); 1750 } 1751 1752 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1753 LangStandard::Kind LangStd) { 1754 // Set some properties which depend solely on the input kind; it would be nice 1755 // to move these to the language standard, and have the driver resolve the 1756 // input kind + language standard. 1757 if (IK == IK_Asm) { 1758 Opts.AsmPreprocessor = 1; 1759 } else if (IK == IK_ObjC || 1760 IK == IK_ObjCXX || 1761 IK == IK_PreprocessedObjC || 1762 IK == IK_PreprocessedObjCXX) { 1763 Opts.ObjC1 = Opts.ObjC2 = 1; 1764 } 1765 1766 if (LangStd == LangStandard::lang_unspecified) { 1767 // Based on the base language, pick one. 1768 switch (IK) { 1769 case IK_None: 1770 case IK_AST: 1771 case IK_LLVM_IR: 1772 llvm_unreachable("Invalid input kind!"); 1773 case IK_OpenCL: 1774 LangStd = LangStandard::lang_opencl; 1775 break; 1776 case IK_CUDA: 1777 LangStd = LangStandard::lang_cuda; 1778 break; 1779 case IK_Asm: 1780 case IK_C: 1781 case IK_PreprocessedC: 1782 case IK_ObjC: 1783 case IK_PreprocessedObjC: 1784 LangStd = LangStandard::lang_gnu99; 1785 break; 1786 case IK_CXX: 1787 case IK_PreprocessedCXX: 1788 case IK_ObjCXX: 1789 case IK_PreprocessedObjCXX: 1790 LangStd = LangStandard::lang_gnucxx98; 1791 break; 1792 } 1793 } 1794 1795 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1796 Opts.BCPLComment = Std.hasBCPLComments(); 1797 Opts.C99 = Std.isC99(); 1798 Opts.C11 = Std.isC11(); 1799 Opts.CPlusPlus = Std.isCPlusPlus(); 1800 Opts.CPlusPlus0x = Std.isCPlusPlus0x(); 1801 Opts.Digraphs = Std.hasDigraphs(); 1802 Opts.GNUMode = Std.isGNUMode(); 1803 Opts.GNUInline = !Std.isC99(); 1804 Opts.HexFloats = Std.hasHexFloats(); 1805 Opts.ImplicitInt = Std.hasImplicitInt(); 1806 1807 // Set OpenCL Version. 1808 if (LangStd == LangStandard::lang_opencl) { 1809 Opts.OpenCL = 1; 1810 Opts.OpenCLVersion = 100; 1811 } 1812 else if (LangStd == LangStandard::lang_opencl11) { 1813 Opts.OpenCL = 1; 1814 Opts.OpenCLVersion = 110; 1815 } 1816 else if (LangStd == LangStandard::lang_opencl12) { 1817 Opts.OpenCL = 1; 1818 Opts.OpenCLVersion = 120; 1819 } 1820 1821 // OpenCL has some additional defaults. 1822 if (Opts.OpenCL) { 1823 Opts.AltiVec = 0; 1824 Opts.CXXOperatorNames = 1; 1825 Opts.LaxVectorConversions = 0; 1826 Opts.DefaultFPContract = 1; 1827 } 1828 1829 if (LangStd == LangStandard::lang_cuda) 1830 Opts.CUDA = 1; 1831 1832 // OpenCL and C++ both have bool, true, false keywords. 1833 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1834 1835 Opts.GNUKeywords = Opts.GNUMode; 1836 Opts.CXXOperatorNames = Opts.CPlusPlus; 1837 1838 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1839 // is specified, or -std is set to a conforming mode. 1840 Opts.Trigraphs = !Opts.GNUMode; 1841 1842 Opts.DollarIdents = !Opts.AsmPreprocessor; 1843 } 1844 1845 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1846 DiagnosticsEngine &Diags) { 1847 // FIXME: Cleanup per-file based stuff. 1848 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1849 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1850 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args)) 1851 #define LANGSTANDARD(id, name, desc, features) \ 1852 .Case(name, LangStandard::lang_##id) 1853 #include "clang/Frontend/LangStandards.def" 1854 .Default(LangStandard::lang_unspecified); 1855 if (LangStd == LangStandard::lang_unspecified) 1856 Diags.Report(diag::err_drv_invalid_value) 1857 << A->getAsString(Args) << A->getValue(Args); 1858 else { 1859 // Valid standard, check to make sure language and standard are compatable. 1860 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1861 switch (IK) { 1862 case IK_C: 1863 case IK_ObjC: 1864 case IK_PreprocessedC: 1865 case IK_PreprocessedObjC: 1866 if (!(Std.isC89() || Std.isC99())) 1867 Diags.Report(diag::err_drv_argument_not_allowed_with) 1868 << A->getAsString(Args) << "C/ObjC"; 1869 break; 1870 case IK_CXX: 1871 case IK_ObjCXX: 1872 case IK_PreprocessedCXX: 1873 case IK_PreprocessedObjCXX: 1874 if (!Std.isCPlusPlus()) 1875 Diags.Report(diag::err_drv_argument_not_allowed_with) 1876 << A->getAsString(Args) << "C++/ObjC++"; 1877 break; 1878 case IK_OpenCL: 1879 if (!Std.isC99()) 1880 Diags.Report(diag::err_drv_argument_not_allowed_with) 1881 << A->getAsString(Args) << "OpenCL"; 1882 break; 1883 case IK_CUDA: 1884 if (!Std.isCPlusPlus()) 1885 Diags.Report(diag::err_drv_argument_not_allowed_with) 1886 << A->getAsString(Args) << "CUDA"; 1887 break; 1888 default: 1889 break; 1890 } 1891 } 1892 } 1893 1894 // -cl-std only applies for OpenCL language standards. 1895 // Override the -std option in this case. 1896 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1897 LangStandard::Kind OpenCLLangStd 1898 = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args)) 1899 .Case("CL", LangStandard::lang_opencl) 1900 .Case("CL1.1", LangStandard::lang_opencl11) 1901 .Case("CL1.2", LangStandard::lang_opencl12) 1902 .Default(LangStandard::lang_unspecified); 1903 1904 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1905 Diags.Report(diag::err_drv_invalid_value) 1906 << A->getAsString(Args) << A->getValue(Args); 1907 } 1908 else 1909 LangStd = OpenCLLangStd; 1910 } 1911 1912 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1913 1914 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1915 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1916 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1917 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1918 // name, as it doesn't seem a useful distinction. 1919 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1920 Opts.GNUKeywords); 1921 1922 if (Args.hasArg(OPT_fno_operator_names)) 1923 Opts.CXXOperatorNames = 0; 1924 1925 if (Opts.ObjC1) { 1926 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1927 StringRef value = arg->getValue(Args); 1928 if (Opts.ObjCRuntime.tryParse(value)) 1929 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1930 } 1931 1932 if (Args.hasArg(OPT_fobjc_gc_only)) 1933 Opts.setGC(LangOptions::GCOnly); 1934 else if (Args.hasArg(OPT_fobjc_gc)) 1935 Opts.setGC(LangOptions::HybridGC); 1936 else if (Args.hasArg(OPT_fobjc_arc)) { 1937 Opts.ObjCAutoRefCount = 1; 1938 if (!Opts.ObjCRuntime.isNonFragile()) 1939 Diags.Report(diag::err_arc_nonfragile_abi); 1940 } 1941 1942 Opts.ObjCRuntimeHasWeak = Opts.ObjCRuntime.hasWeak(); 1943 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1944 Opts.ObjCRuntimeHasWeak = 1; 1945 1946 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1947 Opts.ObjCInferRelatedResultType = 0; 1948 } 1949 1950 if (Args.hasArg(OPT_fgnu89_inline)) 1951 Opts.GNUInline = 1; 1952 1953 if (Args.hasArg(OPT_fapple_kext)) { 1954 if (!Opts.CPlusPlus) 1955 Diags.Report(diag::warn_c_kext); 1956 else 1957 Opts.AppleKext = 1; 1958 } 1959 1960 if (Args.hasArg(OPT_print_ivar_layout)) 1961 Opts.ObjCGCBitmapPrint = 1; 1962 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1963 Opts.NoConstantCFStrings = 1; 1964 1965 if (Args.hasArg(OPT_faltivec)) 1966 Opts.AltiVec = 1; 1967 1968 if (Args.hasArg(OPT_pthread)) 1969 Opts.POSIXThreads = 1; 1970 1971 if (Args.hasArg(OPT_fdelayed_template_parsing)) 1972 Opts.DelayedTemplateParsing = 1; 1973 1974 StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default"); 1975 if (Vis == "default") 1976 Opts.setVisibilityMode(DefaultVisibility); 1977 else if (Vis == "hidden") 1978 Opts.setVisibilityMode(HiddenVisibility); 1979 else if (Vis == "protected") 1980 // FIXME: diagnose if target does not support protected visibility 1981 Opts.setVisibilityMode(ProtectedVisibility); 1982 else 1983 Diags.Report(diag::err_drv_invalid_value) 1984 << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis; 1985 1986 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 1987 StringRef Val = A->getValue(Args); 1988 if (Val == "fast") 1989 Opts.setFPContractMode(LangOptions::FPC_Fast); 1990 else if (Val == "on") 1991 Opts.setFPContractMode(LangOptions::FPC_On); 1992 else if (Val == "off") 1993 Opts.setFPContractMode(LangOptions::FPC_Off); 1994 else 1995 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1996 } 1997 1998 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1999 Opts.InlineVisibilityHidden = 1; 2000 2001 if (Args.hasArg(OPT_ftrapv)) { 2002 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2003 // Set the handler, if one is specified. 2004 Opts.OverflowHandler = 2005 Args.getLastArgValue(OPT_ftrapv_handler); 2006 } 2007 else if (Args.hasArg(OPT_fwrapv)) 2008 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2009 2010 if (Args.hasArg(OPT_trigraphs)) 2011 Opts.Trigraphs = 1; 2012 2013 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2014 OPT_fno_dollars_in_identifiers, 2015 Opts.DollarIdents); 2016 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2017 Opts.MicrosoftExt 2018 = Args.hasArg(OPT_fms_extensions) || Args.hasArg(OPT_fms_compatibility); 2019 Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility); 2020 Opts.MSCVersion = Args.getLastArgIntValue(OPT_fmsc_version, 0, Diags); 2021 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2022 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2023 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2024 Opts.ConstStrings); 2025 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2026 Opts.LaxVectorConversions = 0; 2027 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2028 Opts.ThreadsafeStatics = 0; 2029 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2030 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2031 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2032 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 2033 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2034 2035 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 2036 Opts.Blocks = Args.hasArg(OPT_fblocks); 2037 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2038 Opts.Modules = Args.hasArg(OPT_fmodules); 2039 Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char); 2040 Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar); 2041 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2042 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2043 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2044 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 2045 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2046 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2047 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2048 Opts.MathErrno = Args.hasArg(OPT_fmath_errno); 2049 Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 512, 2050 Diags); 2051 Opts.ConstexprCallDepth = Args.getLastArgIntValue(OPT_fconstexpr_depth, 512, 2052 Diags); 2053 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2054 Opts.NumLargeByValueCopy = Args.getLastArgIntValue(OPT_Wlarge_by_value_copy_EQ, 2055 0, Diags); 2056 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2057 Opts.ObjCConstantStringClass = 2058 Args.getLastArgValue(OPT_fconstant_string_class); 2059 Opts.ObjCDefaultSynthProperties = 2060 Args.hasArg(OPT_fobjc_default_synthesize_properties); 2061 Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior); 2062 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2063 Opts.PackStruct = Args.getLastArgIntValue(OPT_fpack_struct_EQ, 0, Diags); 2064 Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags); 2065 Opts.PIELevel = Args.getLastArgIntValue(OPT_pie_level, 0, Diags); 2066 Opts.Static = Args.hasArg(OPT_static_define); 2067 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2068 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2069 || Args.hasArg(OPT_fdump_record_layouts); 2070 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2071 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2072 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2073 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2074 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2075 Opts.MRTD = Args.hasArg(OPT_mrtd); 2076 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2077 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2078 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2079 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2080 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2081 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2082 Opts.AddressSanitizer = Args.hasArg(OPT_faddress_sanitizer); 2083 Opts.ThreadSanitizer = Args.hasArg(OPT_fthread_sanitizer); 2084 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2085 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 2086 2087 // Record whether the __DEPRECATED define was requested. 2088 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2089 OPT_fno_deprecated_macro, 2090 Opts.Deprecated); 2091 2092 // FIXME: Eliminate this dependency. 2093 unsigned Opt = getOptimizationLevel(Args, IK, Diags); 2094 Opts.Optimize = Opt != 0; 2095 Opts.OptimizeSize = getOptimizationLevelSize(Args, IK, Diags); 2096 2097 // This is the __NO_INLINE__ define, which just depends on things like the 2098 // optimization level and -fno-inline, not actually whether the backend has 2099 // inlining enabled. 2100 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 2101 2102 Opts.FastMath = Args.hasArg(OPT_ffast_math); 2103 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only); 2104 2105 unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags); 2106 switch (SSP) { 2107 default: 2108 Diags.Report(diag::err_drv_invalid_value) 2109 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2110 break; 2111 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2112 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2113 case 2: Opts.setStackProtector(LangOptions::SSPReq); break; 2114 } 2115 } 2116 2117 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2118 FileManager &FileMgr, 2119 DiagnosticsEngine &Diags) { 2120 using namespace options; 2121 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2122 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2123 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2124 Opts.TokenCache = A->getValue(Args); 2125 else 2126 Opts.TokenCache = Opts.ImplicitPTHInclude; 2127 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2128 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2129 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2130 2131 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2132 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl), 2133 ie = Args.filtered_end(); it != ie; ++it) { 2134 const Arg *A = *it; 2135 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue(Args)); 2136 } 2137 2138 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2139 StringRef Value(A->getValue(Args)); 2140 size_t Comma = Value.find(','); 2141 unsigned Bytes = 0; 2142 unsigned EndOfLine = 0; 2143 2144 if (Comma == StringRef::npos || 2145 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2146 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2147 Diags.Report(diag::err_drv_preamble_format); 2148 else { 2149 Opts.PrecompiledPreambleBytes.first = Bytes; 2150 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2151 } 2152 } 2153 2154 // Add macros from the command line. 2155 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), 2156 ie = Args.filtered_end(); it != ie; ++it) { 2157 if ((*it)->getOption().matches(OPT_D)) 2158 Opts.addMacroDef((*it)->getValue(Args)); 2159 else 2160 Opts.addMacroUndef((*it)->getValue(Args)); 2161 } 2162 2163 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2164 2165 // Add the ordered list of -includes. 2166 for (arg_iterator it = Args.filtered_begin(OPT_include, OPT_include_pch, 2167 OPT_include_pth), 2168 ie = Args.filtered_end(); it != ie; ++it) { 2169 const Arg *A = *it; 2170 // PCH is handled specially, we need to extra the original include path. 2171 if (A->getOption().matches(OPT_include_pch)) { 2172 std::string OriginalFile = 2173 ASTReader::getOriginalSourceFile(A->getValue(Args), FileMgr, Diags); 2174 if (OriginalFile.empty()) 2175 continue; 2176 2177 Opts.Includes.push_back(OriginalFile); 2178 } else 2179 Opts.Includes.push_back(A->getValue(Args)); 2180 } 2181 2182 for (arg_iterator it = Args.filtered_begin(OPT_chain_include), 2183 ie = Args.filtered_end(); it != ie; ++it) { 2184 const Arg *A = *it; 2185 Opts.ChainedIncludes.push_back(A->getValue(Args)); 2186 } 2187 2188 // Include 'altivec.h' if -faltivec option present 2189 if (Args.hasArg(OPT_faltivec)) 2190 Opts.Includes.push_back("altivec.h"); 2191 2192 for (arg_iterator it = Args.filtered_begin(OPT_remap_file), 2193 ie = Args.filtered_end(); it != ie; ++it) { 2194 const Arg *A = *it; 2195 std::pair<StringRef,StringRef> Split = 2196 StringRef(A->getValue(Args)).split(';'); 2197 2198 if (Split.second.empty()) { 2199 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2200 continue; 2201 } 2202 2203 Opts.addRemappedFile(Split.first, Split.second); 2204 } 2205 2206 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2207 StringRef Name = A->getValue(Args); 2208 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2209 .Case("libc++", ARCXX_libcxx) 2210 .Case("libstdc++", ARCXX_libstdcxx) 2211 .Case("none", ARCXX_nolib) 2212 .Default(~0U); 2213 if (Library == ~0U) 2214 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2215 else 2216 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2217 } 2218 } 2219 2220 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2221 ArgList &Args) { 2222 using namespace options; 2223 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2224 Opts.ShowComments = Args.hasArg(OPT_C); 2225 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2226 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2227 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2228 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2229 } 2230 2231 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 2232 using namespace options; 2233 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2234 Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi); 2235 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2236 Opts.Features = Args.getAllArgValues(OPT_target_feature); 2237 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2238 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2239 2240 // Use the default target triple if unspecified. 2241 if (Opts.Triple.empty()) 2242 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2243 } 2244 2245 // 2246 2247 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2248 const char *const *ArgBegin, 2249 const char *const *ArgEnd, 2250 DiagnosticsEngine &Diags) { 2251 bool Success = true; 2252 2253 // Parse the arguments. 2254 OwningPtr<OptTable> Opts(createDriverOptTable()); 2255 unsigned MissingArgIndex, MissingArgCount; 2256 OwningPtr<InputArgList> Args( 2257 Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount)); 2258 2259 // Check for missing argument error. 2260 if (MissingArgCount) { 2261 Diags.Report(diag::err_drv_missing_argument) 2262 << Args->getArgString(MissingArgIndex) << MissingArgCount; 2263 Success = false; 2264 } 2265 2266 // Issue errors on unknown arguments. 2267 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), 2268 ie = Args->filtered_end(); it != ie; ++it) { 2269 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args); 2270 Success = false; 2271 } 2272 2273 // Issue errors on arguments that are not valid for CC1. 2274 for (ArgList::iterator I = Args->begin(), E = Args->end(); 2275 I != E; ++I) { 2276 if (!(*I)->getOption().isCC1Option()) { 2277 Diags.Report(diag::err_drv_unknown_argument) << (*I)->getAsString(*Args); 2278 Success = false; 2279 } 2280 } 2281 2282 Success = ParseAnalyzerArgs(Res.getAnalyzerOpts(), *Args, Diags) && Success; 2283 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success; 2284 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args); 2285 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags) 2286 && Success; 2287 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args); 2288 // FIXME: We shouldn't have to pass the DashX option around here 2289 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags); 2290 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags) 2291 && Success; 2292 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args); 2293 if (DashX != IK_AST && DashX != IK_LLVM_IR) { 2294 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags); 2295 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2296 Res.getLangOpts()->ObjCExceptions = 1; 2297 } 2298 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2299 // PCH file and find the original header name. Remove the need to do that in 2300 // ParsePreprocessorArgs and remove the FileManager 2301 // parameters from the function and the "FileManager.h" #include. 2302 FileManager FileMgr(Res.getFileSystemOpts()); 2303 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags); 2304 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args); 2305 ParseTargetArgs(Res.getTargetOpts(), *Args); 2306 2307 return Success; 2308 } 2309 2310 namespace { 2311 2312 class ModuleSignature { 2313 llvm::SmallVector<uint64_t, 16> Data; 2314 unsigned CurBit; 2315 uint64_t CurValue; 2316 2317 public: 2318 ModuleSignature() : CurBit(0), CurValue(0) { } 2319 2320 void add(uint64_t Value, unsigned Bits); 2321 void add(StringRef Value); 2322 void flush(); 2323 2324 llvm::APInt getAsInteger() const; 2325 }; 2326 } 2327 2328 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 2329 CurValue |= Value << CurBit; 2330 if (CurBit + NumBits < 64) { 2331 CurBit += NumBits; 2332 return; 2333 } 2334 2335 // Add the current word. 2336 Data.push_back(CurValue); 2337 2338 if (CurBit) 2339 CurValue = Value >> (64-CurBit); 2340 else 2341 CurValue = 0; 2342 CurBit = (CurBit+NumBits) & 63; 2343 } 2344 2345 void ModuleSignature::flush() { 2346 if (CurBit == 0) 2347 return; 2348 2349 Data.push_back(CurValue); 2350 CurBit = 0; 2351 CurValue = 0; 2352 } 2353 2354 void ModuleSignature::add(StringRef Value) { 2355 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) 2356 add(*I, 8); 2357 } 2358 2359 llvm::APInt ModuleSignature::getAsInteger() const { 2360 return llvm::APInt(Data.size() * 64, Data); 2361 } 2362 2363 std::string CompilerInvocation::getModuleHash() const { 2364 ModuleSignature Signature; 2365 2366 // Start the signature with the compiler version. 2367 // FIXME: The full version string can be quite long. Omit it from the 2368 // module hash for now to avoid failures where the path name becomes too 2369 // long. An MD5 or similar checksum would work well here. 2370 // Signature.add(getClangFullRepositoryVersion()); 2371 2372 // Extend the signature with the language options 2373 #define LANGOPT(Name, Bits, Default, Description) \ 2374 Signature.add(LangOpts->Name, Bits); 2375 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2376 Signature.add(static_cast<unsigned>(LangOpts->get##Name()), Bits); 2377 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2378 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2379 #include "clang/Basic/LangOptions.def" 2380 2381 // Extend the signature with the target triple 2382 llvm::Triple T(TargetOpts.Triple); 2383 Signature.add((unsigned)T.getArch(), 5); 2384 Signature.add((unsigned)T.getVendor(), 4); 2385 Signature.add((unsigned)T.getOS(), 5); 2386 Signature.add((unsigned)T.getEnvironment(), 4); 2387 2388 // Extend the signature with preprocessor options. 2389 Signature.add(getPreprocessorOpts().UsePredefines, 1); 2390 Signature.add(getPreprocessorOpts().DetailedRecord, 1); 2391 2392 // Hash the preprocessor defines. 2393 // FIXME: This is terrible. Use an MD5 sum of the preprocessor defines. 2394 std::vector<StringRef> MacroDefs; 2395 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator 2396 I = getPreprocessorOpts().Macros.begin(), 2397 IEnd = getPreprocessorOpts().Macros.end(); 2398 I != IEnd; ++I) { 2399 if (!I->second) 2400 MacroDefs.push_back(I->first); 2401 } 2402 llvm::array_pod_sort(MacroDefs.begin(), MacroDefs.end()); 2403 2404 unsigned PPHashResult = 0; 2405 for (unsigned I = 0, N = MacroDefs.size(); I != N; ++I) 2406 PPHashResult = llvm::HashString(MacroDefs[I], PPHashResult); 2407 Signature.add(PPHashResult, 32); 2408 2409 // We've generated the signature. Treat it as one large APInt that we'll 2410 // encode in base-36 and return. 2411 Signature.flush(); 2412 return Signature.getAsInteger().toString(36, /*Signed=*/false); 2413 } 2414