1 //===--- 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 "TestModuleFileExtension.h" 11 #include "clang/Frontend/CompilerInvocation.h" 12 #include "clang/Basic/FileManager.h" 13 #include "clang/Basic/Version.h" 14 #include "clang/Config/config.h" 15 #include "clang/Driver/DriverDiagnostic.h" 16 #include "clang/Driver/Options.h" 17 #include "clang/Driver/Util.h" 18 #include "clang/Frontend/FrontendDiagnostic.h" 19 #include "clang/Frontend/LangStandard.h" 20 #include "clang/Frontend/Utils.h" 21 #include "clang/Lex/HeaderSearchOptions.h" 22 #include "clang/Serialization/ASTReader.h" 23 #include "clang/Serialization/ModuleFileExtension.h" 24 #include "llvm/ADT/Hashing.h" 25 #include "llvm/ADT/STLExtras.h" 26 #include "llvm/ADT/SmallVector.h" 27 #include "llvm/ADT/StringExtras.h" 28 #include "llvm/ADT/StringSwitch.h" 29 #include "llvm/ADT/Triple.h" 30 #include "llvm/Linker/Linker.h" 31 #include "llvm/Option/Arg.h" 32 #include "llvm/Option/ArgList.h" 33 #include "llvm/Option/OptTable.h" 34 #include "llvm/Option/Option.h" 35 #include "llvm/Support/CodeGen.h" 36 #include "llvm/Support/ErrorHandling.h" 37 #include "llvm/Support/FileSystem.h" 38 #include "llvm/Support/Host.h" 39 #include "llvm/Support/Path.h" 40 #include "llvm/Support/Process.h" 41 #include "llvm/Target/TargetOptions.h" 42 #include <atomic> 43 #include <memory> 44 #include <sys/stat.h> 45 #include <system_error> 46 using namespace clang; 47 48 //===----------------------------------------------------------------------===// 49 // Initialization. 50 //===----------------------------------------------------------------------===// 51 52 CompilerInvocationBase::CompilerInvocationBase() 53 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 54 DiagnosticOpts(new DiagnosticOptions()), 55 HeaderSearchOpts(new HeaderSearchOptions()), 56 PreprocessorOpts(new PreprocessorOptions()) {} 57 58 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 59 : RefCountedBase<CompilerInvocation>(), 60 LangOpts(new LangOptions(*X.getLangOpts())), 61 TargetOpts(new TargetOptions(X.getTargetOpts())), 62 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 63 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 64 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 65 66 CompilerInvocationBase::~CompilerInvocationBase() {} 67 68 //===----------------------------------------------------------------------===// 69 // Deserialization (from args) 70 //===----------------------------------------------------------------------===// 71 72 using namespace clang::driver; 73 using namespace clang::driver::options; 74 using namespace llvm::opt; 75 76 // 77 78 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 79 DiagnosticsEngine &Diags) { 80 unsigned DefaultOpt = 0; 81 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 82 DefaultOpt = 2; 83 84 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 85 if (A->getOption().matches(options::OPT_O0)) 86 return 0; 87 88 if (A->getOption().matches(options::OPT_Ofast)) 89 return 3; 90 91 assert (A->getOption().matches(options::OPT_O)); 92 93 StringRef S(A->getValue()); 94 if (S == "s" || S == "z" || S.empty()) 95 return 2; 96 97 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 98 } 99 100 return DefaultOpt; 101 } 102 103 static unsigned getOptimizationLevelSize(ArgList &Args) { 104 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 105 if (A->getOption().matches(options::OPT_O)) { 106 switch (A->getValue()[0]) { 107 default: 108 return 0; 109 case 's': 110 return 1; 111 case 'z': 112 return 2; 113 } 114 } 115 } 116 return 0; 117 } 118 119 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 120 OptSpecifier GroupWithValue, 121 std::vector<std::string> &Diagnostics) { 122 for (Arg *A : Args.filtered(Group)) { 123 if (A->getOption().getKind() == Option::FlagClass) { 124 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 125 // its name (minus the "W" or "R" at the beginning) to the warning list. 126 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 127 } else if (A->getOption().matches(GroupWithValue)) { 128 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 129 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 130 } else { 131 // Otherwise, add its value (for OPT_W_Joined and similar). 132 for (const char *Arg : A->getValues()) 133 Diagnostics.emplace_back(Arg); 134 } 135 } 136 } 137 138 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 139 DiagnosticsEngine &Diags) { 140 using namespace options; 141 bool Success = true; 142 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 143 StringRef Name = A->getValue(); 144 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 145 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 146 .Case(CMDFLAG, NAME##Model) 147 #include "clang/StaticAnalyzer/Core/Analyses.def" 148 .Default(NumStores); 149 if (Value == NumStores) { 150 Diags.Report(diag::err_drv_invalid_value) 151 << A->getAsString(Args) << Name; 152 Success = false; 153 } else { 154 Opts.AnalysisStoreOpt = Value; 155 } 156 } 157 158 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 159 StringRef Name = A->getValue(); 160 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 161 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 162 .Case(CMDFLAG, NAME##Model) 163 #include "clang/StaticAnalyzer/Core/Analyses.def" 164 .Default(NumConstraints); 165 if (Value == NumConstraints) { 166 Diags.Report(diag::err_drv_invalid_value) 167 << A->getAsString(Args) << Name; 168 Success = false; 169 } else { 170 Opts.AnalysisConstraintsOpt = Value; 171 } 172 } 173 174 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 175 StringRef Name = A->getValue(); 176 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 177 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 178 .Case(CMDFLAG, PD_##NAME) 179 #include "clang/StaticAnalyzer/Core/Analyses.def" 180 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 181 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 182 Diags.Report(diag::err_drv_invalid_value) 183 << A->getAsString(Args) << Name; 184 Success = false; 185 } else { 186 Opts.AnalysisDiagOpt = Value; 187 } 188 } 189 190 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 191 StringRef Name = A->getValue(); 192 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 193 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 194 .Case(CMDFLAG, NAME) 195 #include "clang/StaticAnalyzer/Core/Analyses.def" 196 .Default(NumPurgeModes); 197 if (Value == NumPurgeModes) { 198 Diags.Report(diag::err_drv_invalid_value) 199 << A->getAsString(Args) << Name; 200 Success = false; 201 } else { 202 Opts.AnalysisPurgeOpt = Value; 203 } 204 } 205 206 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 207 StringRef Name = A->getValue(); 208 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 209 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 210 .Case(CMDFLAG, NAME) 211 #include "clang/StaticAnalyzer/Core/Analyses.def" 212 .Default(NumInliningModes); 213 if (Value == NumInliningModes) { 214 Diags.Report(diag::err_drv_invalid_value) 215 << A->getAsString(Args) << Name; 216 Success = false; 217 } else { 218 Opts.InliningMode = Value; 219 } 220 } 221 222 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 223 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 224 225 Opts.visualizeExplodedGraphWithGraphViz = 226 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 227 Opts.visualizeExplodedGraphWithUbiGraph = 228 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 229 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 230 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 231 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 232 Opts.AnalyzeNestedBlocks = 233 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 234 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 235 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 236 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 237 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 238 Opts.maxBlockVisitOnPath = 239 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 240 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 241 Opts.InlineMaxStackDepth = 242 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 243 Opts.InlineMaxStackDepth, Diags); 244 245 Opts.CheckersControlList.clear(); 246 for (const Arg *A : 247 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 248 A->claim(); 249 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 250 // We can have a list of comma separated checker names, e.g: 251 // '-analyzer-checker=cocoa,unix' 252 StringRef checkerList = A->getValue(); 253 SmallVector<StringRef, 4> checkers; 254 checkerList.split(checkers, ","); 255 for (StringRef checker : checkers) 256 Opts.CheckersControlList.emplace_back(checker, enable); 257 } 258 259 // Go through the analyzer configuration options. 260 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 261 A->claim(); 262 // We can have a list of comma separated config names, e.g: 263 // '-analyzer-config key1=val1,key2=val2' 264 StringRef configList = A->getValue(); 265 SmallVector<StringRef, 4> configVals; 266 configList.split(configVals, ","); 267 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 268 StringRef key, val; 269 std::tie(key, val) = configVals[i].split("="); 270 if (val.empty()) { 271 Diags.Report(SourceLocation(), 272 diag::err_analyzer_config_no_value) << configVals[i]; 273 Success = false; 274 break; 275 } 276 if (val.find('=') != StringRef::npos) { 277 Diags.Report(SourceLocation(), 278 diag::err_analyzer_config_multiple_values) 279 << configVals[i]; 280 Success = false; 281 break; 282 } 283 Opts.Config[key] = val; 284 } 285 } 286 287 return Success; 288 } 289 290 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 291 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 292 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 293 return true; 294 } 295 296 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 297 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 298 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 299 } 300 301 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 302 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 303 StringRef Value = A->getValue(); 304 if (Value == "small" || Value == "kernel" || Value == "medium" || 305 Value == "large") 306 return Value; 307 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 308 } 309 return "default"; 310 } 311 312 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 313 /// It returns a pointer to the newly generated Regex instance. 314 static std::shared_ptr<llvm::Regex> 315 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 316 Arg *RpassArg) { 317 StringRef Val = RpassArg->getValue(); 318 std::string RegexError; 319 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 320 if (!Pattern->isValid(RegexError)) { 321 Diags.Report(diag::err_drv_optimization_remark_pattern) 322 << RegexError << RpassArg->getAsString(Args); 323 Pattern.reset(); 324 } 325 return Pattern; 326 } 327 328 static bool parseDiagnosticLevelMask(StringRef FlagName, 329 const std::vector<std::string> &Levels, 330 DiagnosticsEngine *Diags, 331 DiagnosticLevelMask &M) { 332 bool Success = true; 333 for (const auto &Level : Levels) { 334 DiagnosticLevelMask const PM = 335 llvm::StringSwitch<DiagnosticLevelMask>(Level) 336 .Case("note", DiagnosticLevelMask::Note) 337 .Case("remark", DiagnosticLevelMask::Remark) 338 .Case("warning", DiagnosticLevelMask::Warning) 339 .Case("error", DiagnosticLevelMask::Error) 340 .Default(DiagnosticLevelMask::None); 341 if (PM == DiagnosticLevelMask::None) { 342 Success = false; 343 if (Diags) 344 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 345 } 346 M = M | PM; 347 } 348 return Success; 349 } 350 351 static void parseSanitizerKinds(StringRef FlagName, 352 const std::vector<std::string> &Sanitizers, 353 DiagnosticsEngine &Diags, SanitizerSet &S) { 354 for (const auto &Sanitizer : Sanitizers) { 355 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 356 if (K == 0) 357 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 358 else 359 S.set(K, true); 360 } 361 } 362 363 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 364 DiagnosticsEngine &Diags, 365 const TargetOptions &TargetOpts) { 366 using namespace options; 367 bool Success = true; 368 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 369 370 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 371 // TODO: This could be done in Driver 372 unsigned MaxOptLevel = 3; 373 if (OptimizationLevel > MaxOptLevel) { 374 // If the optimization level is not supported, fall back on the default 375 // optimization 376 Diags.Report(diag::warn_drv_optimization_value) 377 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 378 OptimizationLevel = MaxOptLevel; 379 } 380 Opts.OptimizationLevel = OptimizationLevel; 381 382 // We must always run at least the always inlining pass. 383 Opts.setInlining( 384 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 385 : CodeGenOptions::OnlyAlwaysInlining); 386 // -fno-inline-functions overrides OptimizationLevel > 1. 387 Opts.NoInline = Args.hasArg(OPT_fno_inline); 388 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ? 389 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining()); 390 391 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 392 StringRef Name = A->getValue(); 393 if (Name == "Accelerate") 394 Opts.setVecLib(CodeGenOptions::Accelerate); 395 else if (Name == "none") 396 Opts.setVecLib(CodeGenOptions::NoLibrary); 397 else 398 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 399 } 400 401 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 402 unsigned Val = 403 llvm::StringSwitch<unsigned>(A->getValue()) 404 .Case("line-tables-only", CodeGenOptions::DebugLineTablesOnly) 405 .Case("limited", CodeGenOptions::LimitedDebugInfo) 406 .Case("standalone", CodeGenOptions::FullDebugInfo) 407 .Default(~0U); 408 if (Val == ~0U) 409 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 410 << A->getValue(); 411 else 412 Opts.setDebugInfo(static_cast<CodeGenOptions::DebugInfoKind>(Val)); 413 } 414 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 415 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 416 .Case("gdb", CodeGenOptions::DebuggerKindGDB) 417 .Case("lldb", CodeGenOptions::DebuggerKindLLDB) 418 .Case("sce", CodeGenOptions::DebuggerKindSCE) 419 .Default(~0U); 420 if (Val == ~0U) 421 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 422 << A->getValue(); 423 else 424 Opts.setDebuggerTuning(static_cast<CodeGenOptions::DebuggerKind>(Val)); 425 } 426 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 427 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 428 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 429 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 430 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 431 Opts.DebugExplicitImport = Triple.isPS4CPU(); 432 433 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 434 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 435 436 if (const Arg *A = 437 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 438 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 439 440 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 441 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 442 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 443 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 444 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 445 OPT_fuse_register_sized_bitfield_access); 446 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 447 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 448 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 449 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 450 Opts.NoCommon = Args.hasArg(OPT_fno_common); 451 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 452 Opts.OptimizeSize = getOptimizationLevelSize(Args); 453 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 454 Args.hasArg(OPT_ffreestanding)); 455 Opts.UnrollLoops = 456 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 457 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize)); 458 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 459 460 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 461 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 462 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 463 Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate) || 464 Args.hasArg(OPT_fprofile_instr_generate_EQ); 465 Opts.InstrProfileOutput = Args.getLastArgValue(OPT_fprofile_instr_generate_EQ); 466 Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ); 467 Opts.CoverageMapping = 468 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 469 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 470 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 471 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 472 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 473 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 474 Opts.CodeModel = getCodeModel(Args, Diags); 475 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 476 Opts.DisableFPElim = 477 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 478 Opts.DisableFree = Args.hasArg(OPT_disable_free); 479 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 480 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 481 if (Arg *A = Args.getLastArg(OPT_meabi)) { 482 StringRef Value = A->getValue(); 483 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 484 .Case("default", llvm::EABI::Default) 485 .Case("4", llvm::EABI::EABI4) 486 .Case("5", llvm::EABI::EABI5) 487 .Case("gnu", llvm::EABI::GNU) 488 .Default(llvm::EABI::Unknown); 489 if (EABIVersion == llvm::EABI::Unknown) 490 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 491 << Value; 492 else 493 Opts.EABIVersion = Value; 494 } 495 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 496 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 497 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 498 Args.hasArg(OPT_cl_finite_math_only) || 499 Args.hasArg(OPT_cl_fast_relaxed_math)); 500 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 501 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 502 Args.hasArg(OPT_cl_finite_math_only) || 503 Args.hasArg(OPT_cl_fast_relaxed_math)); 504 Opts.NoSignedZeros = Args.hasArg(OPT_fno_signed_zeros); 505 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 506 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 507 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 508 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 509 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 510 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 511 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 512 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 513 Opts.IncrementalLinkerCompatible = 514 Args.hasArg(OPT_mincremental_linker_compatible); 515 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 516 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 517 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 518 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 519 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 520 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 521 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 522 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 523 Args.hasArg(OPT_cl_fast_relaxed_math); 524 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 525 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 526 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 527 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 528 Diags.Report(diag::err_drv_invalid_value) 529 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 530 << Opts.ThreadModel; 531 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 532 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 533 534 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 535 OPT_fno_function_sections, false); 536 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 537 OPT_fno_data_sections, false); 538 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 539 OPT_fno_unique_section_names, true); 540 541 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 542 543 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 544 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ); 545 Opts.EmitFunctionSummary = A && A->containsValue("thin"); 546 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 547 if (IK != IK_LLVM_IR) 548 Diags.Report(diag::err_drv_argument_only_allowed_with) 549 << A->getAsString(Args) << "-x ir"; 550 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 551 } 552 553 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 554 555 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 556 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 557 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 558 559 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 560 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 561 562 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 563 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 564 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 565 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 566 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 567 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 568 Opts.CoverageNoFunctionNamesInData = 569 Args.hasArg(OPT_coverage_no_function_names_in_data); 570 Opts.CoverageExitBlockBeforeBody = 571 Args.hasArg(OPT_coverage_exit_block_before_body); 572 if (Args.hasArg(OPT_coverage_version_EQ)) { 573 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 574 if (CoverageVersion.size() != 4) { 575 Diags.Report(diag::err_drv_invalid_value) 576 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 577 << CoverageVersion; 578 } else { 579 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 580 } 581 } 582 } 583 584 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 585 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 586 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 587 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 588 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 589 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 590 unsigned LinkFlags = llvm::Linker::Flags::None; 591 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) 592 LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded | 593 llvm::Linker::Flags::InternalizeLinkedSymbols; 594 Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue())); 595 } 596 Opts.SanitizeCoverageType = 597 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 598 Opts.SanitizeCoverageIndirectCalls = 599 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 600 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 601 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 602 Opts.SanitizeCoverage8bitCounters = 603 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 604 Opts.SanitizeMemoryTrackOrigins = 605 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 606 Opts.SanitizeMemoryUseAfterDtor = 607 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 608 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 609 Opts.SSPBufferSize = 610 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 611 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 612 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 613 StringRef Val = A->getValue(); 614 unsigned StackAlignment = Opts.StackAlignment; 615 Val.getAsInteger(10, StackAlignment); 616 Opts.StackAlignment = StackAlignment; 617 } 618 619 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 620 StringRef Val = A->getValue(); 621 unsigned StackProbeSize = Opts.StackProbeSize; 622 Val.getAsInteger(0, StackProbeSize); 623 Opts.StackProbeSize = StackProbeSize; 624 } 625 626 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 627 StringRef Name = A->getValue(); 628 unsigned Method = llvm::StringSwitch<unsigned>(Name) 629 .Case("legacy", CodeGenOptions::Legacy) 630 .Case("non-legacy", CodeGenOptions::NonLegacy) 631 .Case("mixed", CodeGenOptions::Mixed) 632 .Default(~0U); 633 if (Method == ~0U) { 634 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 635 Success = false; 636 } else { 637 Opts.setObjCDispatchMethod( 638 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 639 } 640 } 641 642 Opts.EmulatedTLS = 643 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 644 645 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 646 StringRef Name = A->getValue(); 647 unsigned Model = llvm::StringSwitch<unsigned>(Name) 648 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 649 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 650 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 651 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 652 .Default(~0U); 653 if (Model == ~0U) { 654 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 655 Success = false; 656 } else { 657 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 658 } 659 } 660 661 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 662 StringRef Val = A->getValue(); 663 if (Val == "fast") 664 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 665 else if (Val == "on") 666 Opts.setFPContractMode(CodeGenOptions::FPC_On); 667 else if (Val == "off") 668 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 669 else 670 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 671 } 672 673 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 674 if (A->getOption().matches(OPT_fpcc_struct_return)) { 675 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 676 } else { 677 assert(A->getOption().matches(OPT_freg_struct_return)); 678 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 679 } 680 } 681 682 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 683 bool NeedLocTracking = false; 684 685 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 686 Opts.OptimizationRemarkPattern = 687 GenerateOptimizationRemarkRegex(Diags, Args, A); 688 NeedLocTracking = true; 689 } 690 691 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 692 Opts.OptimizationRemarkMissedPattern = 693 GenerateOptimizationRemarkRegex(Diags, Args, A); 694 NeedLocTracking = true; 695 } 696 697 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 698 Opts.OptimizationRemarkAnalysisPattern = 699 GenerateOptimizationRemarkRegex(Diags, Args, A); 700 NeedLocTracking = true; 701 } 702 703 // If the user requested to use a sample profile for PGO, then the 704 // backend will need to track source location information so the profile 705 // can be incorporated into the IR. 706 if (!Opts.SampleProfileFile.empty()) 707 NeedLocTracking = true; 708 709 // If the user requested a flag that requires source locations available in 710 // the backend, make sure that the backend tracks source location information. 711 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo) 712 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly); 713 714 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 715 716 // Parse -fsanitize-recover= arguments. 717 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 718 parseSanitizerKinds("-fsanitize-recover=", 719 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 720 Opts.SanitizeRecover); 721 parseSanitizerKinds("-fsanitize-trap=", 722 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 723 Opts.SanitizeTrap); 724 725 Opts.CudaGpuBinaryFileNames = 726 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 727 728 return Success; 729 } 730 731 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 732 ArgList &Args) { 733 using namespace options; 734 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 735 Opts.Targets = Args.getAllArgValues(OPT_MT); 736 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 737 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 738 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 739 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 740 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 741 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 742 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 743 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 744 Opts.ModuleDependencyOutputDir = 745 Args.getLastArgValue(OPT_module_dependency_dir); 746 if (Args.hasArg(OPT_MV)) 747 Opts.OutputFormat = DependencyOutputFormat::NMake; 748 // Add sanitizer blacklists as extra dependencies. 749 // They won't be discovered by the regular preprocessor, so 750 // we let make / ninja to know about this implicit dependency. 751 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 752 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 753 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 754 ModuleFiles.end()); 755 } 756 757 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 758 DiagnosticsEngine *Diags) { 759 using namespace options; 760 bool Success = true; 761 762 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 763 if (Arg *A = 764 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 765 Opts.DiagnosticSerializationFile = A->getValue(); 766 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 767 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 768 Opts.Pedantic = Args.hasArg(OPT_pedantic); 769 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 770 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 771 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 772 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 773 OPT_fno_show_column, 774 /*Default=*/true); 775 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 776 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 777 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 778 779 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 780 781 // Default behavior is to not to show note include stacks. 782 Opts.ShowNoteIncludeStack = false; 783 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 784 OPT_fno_diagnostics_show_note_include_stack)) 785 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 786 Opts.ShowNoteIncludeStack = true; 787 788 StringRef ShowOverloads = 789 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 790 if (ShowOverloads == "best") 791 Opts.setShowOverloads(Ovl_Best); 792 else if (ShowOverloads == "all") 793 Opts.setShowOverloads(Ovl_All); 794 else { 795 Success = false; 796 if (Diags) 797 Diags->Report(diag::err_drv_invalid_value) 798 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 799 << ShowOverloads; 800 } 801 802 StringRef ShowCategory = 803 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 804 if (ShowCategory == "none") 805 Opts.ShowCategories = 0; 806 else if (ShowCategory == "id") 807 Opts.ShowCategories = 1; 808 else if (ShowCategory == "name") 809 Opts.ShowCategories = 2; 810 else { 811 Success = false; 812 if (Diags) 813 Diags->Report(diag::err_drv_invalid_value) 814 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 815 << ShowCategory; 816 } 817 818 StringRef Format = 819 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 820 if (Format == "clang") 821 Opts.setFormat(DiagnosticOptions::Clang); 822 else if (Format == "msvc") 823 Opts.setFormat(DiagnosticOptions::MSVC); 824 else if (Format == "msvc-fallback") { 825 Opts.setFormat(DiagnosticOptions::MSVC); 826 Opts.CLFallbackMode = true; 827 } else if (Format == "vi") 828 Opts.setFormat(DiagnosticOptions::Vi); 829 else { 830 Success = false; 831 if (Diags) 832 Diags->Report(diag::err_drv_invalid_value) 833 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 834 << Format; 835 } 836 837 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 838 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 839 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 840 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 841 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 842 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 843 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 844 Diags, DiagMask); 845 if (Args.hasArg(OPT_verify_ignore_unexpected)) 846 DiagMask = DiagnosticLevelMask::All; 847 Opts.setVerifyIgnoreUnexpected(DiagMask); 848 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 849 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 850 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 851 Opts.MacroBacktraceLimit = 852 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 853 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 854 Opts.TemplateBacktraceLimit = getLastArgIntValue( 855 Args, OPT_ftemplate_backtrace_limit, 856 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 857 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 858 Args, OPT_fconstexpr_backtrace_limit, 859 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 860 Opts.SpellCheckingLimit = getLastArgIntValue( 861 Args, OPT_fspell_checking_limit, 862 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 863 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 864 DiagnosticOptions::DefaultTabStop, Diags); 865 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 866 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 867 if (Diags) 868 Diags->Report(diag::warn_ignoring_ftabstop_value) 869 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 870 } 871 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 872 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 873 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 874 875 return Success; 876 } 877 878 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 879 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 880 } 881 882 /// Parse the argument to the -ftest-module-file-extension 883 /// command-line argument. 884 /// 885 /// \returns true on error, false on success. 886 static bool parseTestModuleFileExtensionArg(StringRef Arg, 887 std::string &BlockName, 888 unsigned &MajorVersion, 889 unsigned &MinorVersion, 890 bool &Hashed, 891 std::string &UserInfo) { 892 SmallVector<StringRef, 5> Args; 893 Arg.split(Args, ':', 5); 894 if (Args.size() < 5) 895 return true; 896 897 BlockName = Args[0]; 898 if (Args[1].getAsInteger(10, MajorVersion)) return true; 899 if (Args[2].getAsInteger(10, MinorVersion)) return true; 900 if (Args[3].getAsInteger(2, Hashed)) return true; 901 if (Args.size() > 4) 902 UserInfo = Args[4]; 903 return false; 904 } 905 906 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 907 DiagnosticsEngine &Diags) { 908 using namespace options; 909 Opts.ProgramAction = frontend::ParseSyntaxOnly; 910 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 911 switch (A->getOption().getID()) { 912 default: 913 llvm_unreachable("Invalid option in group!"); 914 case OPT_ast_list: 915 Opts.ProgramAction = frontend::ASTDeclList; break; 916 case OPT_ast_dump: 917 case OPT_ast_dump_lookups: 918 Opts.ProgramAction = frontend::ASTDump; break; 919 case OPT_ast_print: 920 Opts.ProgramAction = frontend::ASTPrint; break; 921 case OPT_ast_view: 922 Opts.ProgramAction = frontend::ASTView; break; 923 case OPT_dump_raw_tokens: 924 Opts.ProgramAction = frontend::DumpRawTokens; break; 925 case OPT_dump_tokens: 926 Opts.ProgramAction = frontend::DumpTokens; break; 927 case OPT_S: 928 Opts.ProgramAction = frontend::EmitAssembly; break; 929 case OPT_emit_llvm_bc: 930 Opts.ProgramAction = frontend::EmitBC; break; 931 case OPT_emit_html: 932 Opts.ProgramAction = frontend::EmitHTML; break; 933 case OPT_emit_llvm: 934 Opts.ProgramAction = frontend::EmitLLVM; break; 935 case OPT_emit_llvm_only: 936 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 937 case OPT_emit_codegen_only: 938 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 939 case OPT_emit_obj: 940 Opts.ProgramAction = frontend::EmitObj; break; 941 case OPT_fixit_EQ: 942 Opts.FixItSuffix = A->getValue(); 943 // fall-through! 944 case OPT_fixit: 945 Opts.ProgramAction = frontend::FixIt; break; 946 case OPT_emit_module: 947 Opts.ProgramAction = frontend::GenerateModule; break; 948 case OPT_emit_pch: 949 Opts.ProgramAction = frontend::GeneratePCH; break; 950 case OPT_emit_pth: 951 Opts.ProgramAction = frontend::GeneratePTH; break; 952 case OPT_init_only: 953 Opts.ProgramAction = frontend::InitOnly; break; 954 case OPT_fsyntax_only: 955 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 956 case OPT_module_file_info: 957 Opts.ProgramAction = frontend::ModuleFileInfo; break; 958 case OPT_verify_pch: 959 Opts.ProgramAction = frontend::VerifyPCH; break; 960 case OPT_print_decl_contexts: 961 Opts.ProgramAction = frontend::PrintDeclContext; break; 962 case OPT_print_preamble: 963 Opts.ProgramAction = frontend::PrintPreamble; break; 964 case OPT_E: 965 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 966 case OPT_rewrite_macros: 967 Opts.ProgramAction = frontend::RewriteMacros; break; 968 case OPT_rewrite_objc: 969 Opts.ProgramAction = frontend::RewriteObjC; break; 970 case OPT_rewrite_test: 971 Opts.ProgramAction = frontend::RewriteTest; break; 972 case OPT_analyze: 973 Opts.ProgramAction = frontend::RunAnalysis; break; 974 case OPT_migrate: 975 Opts.ProgramAction = frontend::MigrateSource; break; 976 case OPT_Eonly: 977 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 978 } 979 } 980 981 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 982 Opts.Plugins.emplace_back(A->getValue(0)); 983 Opts.ProgramAction = frontend::PluginAction; 984 Opts.ActionName = A->getValue(); 985 986 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 987 if (AA->getValue(0) == Opts.ActionName) 988 Opts.PluginArgs.emplace_back(AA->getValue(1)); 989 } 990 991 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 992 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 993 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) 994 for (const Arg *A : Args.filtered(OPT_plugin_arg)) 995 if (A->getValue(0) == Opts.AddPluginActions[i]) 996 Opts.AddPluginArgs[i].emplace_back(A->getValue(1)); 997 998 for (const std::string &Arg : 999 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1000 std::string BlockName; 1001 unsigned MajorVersion; 1002 unsigned MinorVersion; 1003 bool Hashed; 1004 std::string UserInfo; 1005 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1006 MinorVersion, Hashed, UserInfo)) { 1007 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1008 1009 continue; 1010 } 1011 1012 // Add the testing module file extension. 1013 Opts.ModuleFileExtensions.push_back( 1014 new TestModuleFileExtension(BlockName, MajorVersion, MinorVersion, 1015 Hashed, UserInfo)); 1016 } 1017 1018 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1019 Opts.CodeCompletionAt = 1020 ParsedSourceLocation::FromString(A->getValue()); 1021 if (Opts.CodeCompletionAt.FileName.empty()) 1022 Diags.Report(diag::err_drv_invalid_value) 1023 << A->getAsString(Args) << A->getValue(); 1024 } 1025 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1026 1027 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1028 Opts.Plugins = Args.getAllArgValues(OPT_load); 1029 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1030 Opts.ShowHelp = Args.hasArg(OPT_help); 1031 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1032 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1033 Opts.ShowVersion = Args.hasArg(OPT_version); 1034 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1035 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1036 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1037 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1038 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1039 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1040 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1041 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1042 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1043 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1044 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1045 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1046 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 1047 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1048 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1049 1050 Opts.CodeCompleteOpts.IncludeMacros 1051 = Args.hasArg(OPT_code_completion_macros); 1052 Opts.CodeCompleteOpts.IncludeCodePatterns 1053 = Args.hasArg(OPT_code_completion_patterns); 1054 Opts.CodeCompleteOpts.IncludeGlobals 1055 = !Args.hasArg(OPT_no_code_completion_globals); 1056 Opts.CodeCompleteOpts.IncludeBriefComments 1057 = Args.hasArg(OPT_code_completion_brief_comments); 1058 1059 Opts.OverrideRecordLayoutsFile 1060 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1061 Opts.AuxTriple = 1062 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1063 1064 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1065 OPT_arcmt_modify, 1066 OPT_arcmt_migrate)) { 1067 switch (A->getOption().getID()) { 1068 default: 1069 llvm_unreachable("missed a case"); 1070 case OPT_arcmt_check: 1071 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1072 break; 1073 case OPT_arcmt_modify: 1074 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1075 break; 1076 case OPT_arcmt_migrate: 1077 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1078 break; 1079 } 1080 } 1081 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1082 Opts.ARCMTMigrateReportOut 1083 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1084 Opts.ARCMTMigrateEmitARCErrors 1085 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1086 1087 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1088 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1089 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1090 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1091 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1092 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1093 if (Args.hasArg(OPT_objcmt_migrate_property)) 1094 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1095 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1096 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1097 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1098 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1099 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1100 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1101 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1102 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1103 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1104 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1105 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1106 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1107 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1108 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1109 if (Args.hasArg(OPT_objcmt_atomic_property)) 1110 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1111 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1112 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1113 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1114 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1115 if (Args.hasArg(OPT_objcmt_migrate_all)) 1116 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1117 1118 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1119 1120 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1121 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1122 Diags.Report(diag::err_drv_argument_not_allowed_with) 1123 << "ARC migration" << "ObjC migration"; 1124 } 1125 1126 InputKind DashX = IK_None; 1127 if (const Arg *A = Args.getLastArg(OPT_x)) { 1128 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 1129 .Case("c", IK_C) 1130 .Case("cl", IK_OpenCL) 1131 .Case("cuda", IK_CUDA) 1132 .Case("c++", IK_CXX) 1133 .Case("objective-c", IK_ObjC) 1134 .Case("objective-c++", IK_ObjCXX) 1135 .Case("cpp-output", IK_PreprocessedC) 1136 .Case("assembler-with-cpp", IK_Asm) 1137 .Case("c++-cpp-output", IK_PreprocessedCXX) 1138 .Case("cuda-cpp-output", IK_PreprocessedCuda) 1139 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1140 .Case("objc-cpp-output", IK_PreprocessedObjC) 1141 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1142 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1143 .Case("c-header", IK_C) 1144 .Case("cl-header", IK_OpenCL) 1145 .Case("objective-c-header", IK_ObjC) 1146 .Case("c++-header", IK_CXX) 1147 .Case("objective-c++-header", IK_ObjCXX) 1148 .Cases("ast", "pcm", IK_AST) 1149 .Case("ir", IK_LLVM_IR) 1150 .Default(IK_None); 1151 if (DashX == IK_None) 1152 Diags.Report(diag::err_drv_invalid_value) 1153 << A->getAsString(Args) << A->getValue(); 1154 } 1155 1156 // '-' is the default input if none is given. 1157 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1158 Opts.Inputs.clear(); 1159 if (Inputs.empty()) 1160 Inputs.push_back("-"); 1161 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1162 InputKind IK = DashX; 1163 if (IK == IK_None) { 1164 IK = FrontendOptions::getInputKindForExtension( 1165 StringRef(Inputs[i]).rsplit('.').second); 1166 // FIXME: Remove this hack. 1167 if (i == 0) 1168 DashX = IK; 1169 } 1170 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1171 } 1172 1173 return DashX; 1174 } 1175 1176 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1177 void *MainAddr) { 1178 std::string ClangExecutable = 1179 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1180 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1181 1182 // Compute the path to the resource directory. 1183 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1184 SmallString<128> P(Dir); 1185 if (ClangResourceDir != "") 1186 llvm::sys::path::append(P, ClangResourceDir); 1187 else 1188 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1189 "clang", CLANG_VERSION_STRING); 1190 1191 return P.str(); 1192 } 1193 1194 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1195 using namespace options; 1196 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1197 Opts.Verbose = Args.hasArg(OPT_v); 1198 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1199 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1200 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1201 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1202 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1203 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1204 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 1205 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1206 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1207 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1208 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1209 Opts.ModuleCachePruneInterval = 1210 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1211 Opts.ModuleCachePruneAfter = 1212 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1213 Opts.ModulesValidateOncePerBuildSession = 1214 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1215 Opts.BuildSessionTimestamp = 1216 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1217 Opts.ModulesValidateSystemHeaders = 1218 Args.hasArg(OPT_fmodules_validate_system_headers); 1219 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1220 Opts.ModuleFormat = A->getValue(); 1221 1222 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1223 StringRef MacroDef = A->getValue(); 1224 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first); 1225 } 1226 1227 // Add -I..., -F..., and -index-header-map options in order. 1228 bool IsIndexHeaderMap = false; 1229 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1230 if (A->getOption().matches(OPT_index_header_map)) { 1231 // -index-header-map applies to the next -I or -F. 1232 IsIndexHeaderMap = true; 1233 continue; 1234 } 1235 1236 frontend::IncludeDirGroup Group = 1237 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1238 1239 Opts.AddPath(A->getValue(), Group, 1240 /*IsFramework=*/A->getOption().matches(OPT_F), true); 1241 IsIndexHeaderMap = false; 1242 } 1243 1244 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1245 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1246 for (const Arg *A : 1247 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1248 if (A->getOption().matches(OPT_iprefix)) 1249 Prefix = A->getValue(); 1250 else if (A->getOption().matches(OPT_iwithprefix)) 1251 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1252 else 1253 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1254 } 1255 1256 for (const Arg *A : Args.filtered(OPT_idirafter)) 1257 Opts.AddPath(A->getValue(), frontend::After, false, true); 1258 for (const Arg *A : Args.filtered(OPT_iquote)) 1259 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1260 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1261 Opts.AddPath(A->getValue(), frontend::System, false, 1262 !A->getOption().matches(OPT_iwithsysroot)); 1263 for (const Arg *A : Args.filtered(OPT_iframework)) 1264 Opts.AddPath(A->getValue(), frontend::System, true, true); 1265 1266 // Add the paths for the various language specific isystem flags. 1267 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1268 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1269 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1270 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1271 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1272 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1273 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1274 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1275 1276 // Add the internal paths from a driver that detects standard include paths. 1277 for (const Arg *A : 1278 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1279 frontend::IncludeDirGroup Group = frontend::System; 1280 if (A->getOption().matches(OPT_internal_externc_isystem)) 1281 Group = frontend::ExternCSystem; 1282 Opts.AddPath(A->getValue(), Group, false, true); 1283 } 1284 1285 // Add the path prefixes which are implicitly treated as being system headers. 1286 for (const Arg *A : 1287 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1288 Opts.AddSystemHeaderPrefix( 1289 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1290 1291 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1292 Opts.AddVFSOverlayFile(A->getValue()); 1293 } 1294 1295 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1296 LangStandard::Kind LangStd) { 1297 // Set some properties which depend solely on the input kind; it would be nice 1298 // to move these to the language standard, and have the driver resolve the 1299 // input kind + language standard. 1300 if (IK == IK_Asm) { 1301 Opts.AsmPreprocessor = 1; 1302 } else if (IK == IK_ObjC || 1303 IK == IK_ObjCXX || 1304 IK == IK_PreprocessedObjC || 1305 IK == IK_PreprocessedObjCXX) { 1306 Opts.ObjC1 = Opts.ObjC2 = 1; 1307 } 1308 1309 if (LangStd == LangStandard::lang_unspecified) { 1310 // Based on the base language, pick one. 1311 switch (IK) { 1312 case IK_None: 1313 case IK_AST: 1314 case IK_LLVM_IR: 1315 llvm_unreachable("Invalid input kind!"); 1316 case IK_OpenCL: 1317 LangStd = LangStandard::lang_opencl; 1318 break; 1319 case IK_CUDA: 1320 case IK_PreprocessedCuda: 1321 LangStd = LangStandard::lang_cuda; 1322 break; 1323 case IK_Asm: 1324 case IK_C: 1325 case IK_PreprocessedC: 1326 case IK_ObjC: 1327 case IK_PreprocessedObjC: 1328 LangStd = LangStandard::lang_gnu11; 1329 break; 1330 case IK_CXX: 1331 case IK_PreprocessedCXX: 1332 case IK_ObjCXX: 1333 case IK_PreprocessedObjCXX: 1334 LangStd = LangStandard::lang_gnucxx98; 1335 break; 1336 } 1337 } 1338 1339 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1340 Opts.LineComment = Std.hasLineComments(); 1341 Opts.C99 = Std.isC99(); 1342 Opts.C11 = Std.isC11(); 1343 Opts.CPlusPlus = Std.isCPlusPlus(); 1344 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1345 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1346 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1347 Opts.Digraphs = Std.hasDigraphs(); 1348 Opts.GNUMode = Std.isGNUMode(); 1349 Opts.GNUInline = Std.isC89(); 1350 Opts.HexFloats = Std.hasHexFloats(); 1351 Opts.ImplicitInt = Std.hasImplicitInt(); 1352 1353 // Set OpenCL Version. 1354 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL; 1355 if (LangStd == LangStandard::lang_opencl) 1356 Opts.OpenCLVersion = 100; 1357 else if (LangStd == LangStandard::lang_opencl11) 1358 Opts.OpenCLVersion = 110; 1359 else if (LangStd == LangStandard::lang_opencl12) 1360 Opts.OpenCLVersion = 120; 1361 else if (LangStd == LangStandard::lang_opencl20) 1362 Opts.OpenCLVersion = 200; 1363 1364 // OpenCL has some additional defaults. 1365 if (Opts.OpenCL) { 1366 Opts.AltiVec = 0; 1367 Opts.ZVector = 0; 1368 Opts.CXXOperatorNames = 1; 1369 Opts.LaxVectorConversions = 0; 1370 Opts.DefaultFPContract = 1; 1371 Opts.NativeHalfType = 1; 1372 } 1373 1374 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || 1375 LangStd == LangStandard::lang_cuda; 1376 1377 // OpenCL and C++ both have bool, true, false keywords. 1378 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1379 1380 // OpenCL has half keyword 1381 Opts.Half = Opts.OpenCL; 1382 1383 // C++ has wchar_t keyword. 1384 Opts.WChar = Opts.CPlusPlus; 1385 1386 Opts.GNUKeywords = Opts.GNUMode; 1387 Opts.CXXOperatorNames = Opts.CPlusPlus; 1388 1389 Opts.DollarIdents = !Opts.AsmPreprocessor; 1390 } 1391 1392 /// Attempt to parse a visibility value out of the given argument. 1393 static Visibility parseVisibility(Arg *arg, ArgList &args, 1394 DiagnosticsEngine &diags) { 1395 StringRef value = arg->getValue(); 1396 if (value == "default") { 1397 return DefaultVisibility; 1398 } else if (value == "hidden" || value == "internal") { 1399 return HiddenVisibility; 1400 } else if (value == "protected") { 1401 // FIXME: diagnose if target does not support protected visibility 1402 return ProtectedVisibility; 1403 } 1404 1405 diags.Report(diag::err_drv_invalid_value) 1406 << arg->getAsString(args) << value; 1407 return DefaultVisibility; 1408 } 1409 1410 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1411 DiagnosticsEngine &Diags) { 1412 // FIXME: Cleanup per-file based stuff. 1413 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1414 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1415 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1416 #define LANGSTANDARD(id, name, desc, features) \ 1417 .Case(name, LangStandard::lang_##id) 1418 #include "clang/Frontend/LangStandards.def" 1419 .Default(LangStandard::lang_unspecified); 1420 if (LangStd == LangStandard::lang_unspecified) 1421 Diags.Report(diag::err_drv_invalid_value) 1422 << A->getAsString(Args) << A->getValue(); 1423 else { 1424 // Valid standard, check to make sure language and standard are 1425 // compatible. 1426 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1427 switch (IK) { 1428 case IK_C: 1429 case IK_ObjC: 1430 case IK_PreprocessedC: 1431 case IK_PreprocessedObjC: 1432 if (!(Std.isC89() || Std.isC99())) 1433 Diags.Report(diag::err_drv_argument_not_allowed_with) 1434 << A->getAsString(Args) << "C/ObjC"; 1435 break; 1436 case IK_CXX: 1437 case IK_ObjCXX: 1438 case IK_PreprocessedCXX: 1439 case IK_PreprocessedObjCXX: 1440 if (!Std.isCPlusPlus()) 1441 Diags.Report(diag::err_drv_argument_not_allowed_with) 1442 << A->getAsString(Args) << "C++/ObjC++"; 1443 break; 1444 case IK_OpenCL: 1445 if (!Std.isC99()) 1446 Diags.Report(diag::err_drv_argument_not_allowed_with) 1447 << A->getAsString(Args) << "OpenCL"; 1448 break; 1449 case IK_CUDA: 1450 case IK_PreprocessedCuda: 1451 if (!Std.isCPlusPlus()) 1452 Diags.Report(diag::err_drv_argument_not_allowed_with) 1453 << A->getAsString(Args) << "CUDA"; 1454 break; 1455 default: 1456 break; 1457 } 1458 } 1459 } 1460 1461 // -cl-std only applies for OpenCL language standards. 1462 // Override the -std option in this case. 1463 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1464 LangStandard::Kind OpenCLLangStd 1465 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1466 .Case("CL", LangStandard::lang_opencl) 1467 .Case("CL1.1", LangStandard::lang_opencl11) 1468 .Case("CL1.2", LangStandard::lang_opencl12) 1469 .Case("CL2.0", LangStandard::lang_opencl20) 1470 .Default(LangStandard::lang_unspecified); 1471 1472 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1473 Diags.Report(diag::err_drv_invalid_value) 1474 << A->getAsString(Args) << A->getValue(); 1475 } 1476 else 1477 LangStd = OpenCLLangStd; 1478 } 1479 1480 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1481 1482 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1483 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1484 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1485 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1486 // name, as it doesn't seem a useful distinction. 1487 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1488 Opts.GNUKeywords); 1489 1490 if (Args.hasArg(OPT_fno_operator_names)) 1491 Opts.CXXOperatorNames = 0; 1492 1493 if (Args.hasArg(OPT_fcuda_is_device)) 1494 Opts.CUDAIsDevice = 1; 1495 1496 if (Args.hasArg(OPT_fcuda_allow_host_calls_from_host_device)) 1497 Opts.CUDAAllowHostCallsFromHostDevice = 1; 1498 1499 if (Args.hasArg(OPT_fcuda_disable_target_call_checks)) 1500 Opts.CUDADisableTargetCallChecks = 1; 1501 1502 if (Args.hasArg(OPT_fcuda_target_overloads)) 1503 Opts.CUDATargetOverloads = 1; 1504 1505 if (Opts.ObjC1) { 1506 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1507 StringRef value = arg->getValue(); 1508 if (Opts.ObjCRuntime.tryParse(value)) 1509 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1510 } 1511 1512 if (Args.hasArg(OPT_fobjc_gc_only)) 1513 Opts.setGC(LangOptions::GCOnly); 1514 else if (Args.hasArg(OPT_fobjc_gc)) 1515 Opts.setGC(LangOptions::HybridGC); 1516 else if (Args.hasArg(OPT_fobjc_arc)) { 1517 Opts.ObjCAutoRefCount = 1; 1518 if (!Opts.ObjCRuntime.allowsARC()) 1519 Diags.Report(diag::err_arc_unsupported_on_runtime); 1520 } 1521 1522 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 1523 // whether the feature is actually enabled. This is predominantly 1524 // determined by -fobjc-runtime, but we allow it to be overridden 1525 // from the command line for testing purposes. 1526 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1527 Opts.ObjCWeakRuntime = 1; 1528 else 1529 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 1530 1531 // ObjCWeak determines whether __weak is actually enabled. 1532 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 1533 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 1534 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 1535 assert(!Opts.ObjCWeak); 1536 } else if (Opts.getGC() != LangOptions::NonGC) { 1537 Diags.Report(diag::err_objc_weak_with_gc); 1538 } else if (!Opts.ObjCWeakRuntime) { 1539 Diags.Report(diag::err_objc_weak_unsupported); 1540 } else { 1541 Opts.ObjCWeak = 1; 1542 } 1543 } else if (Opts.ObjCAutoRefCount) { 1544 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 1545 } 1546 1547 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1548 Opts.ObjCInferRelatedResultType = 0; 1549 1550 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1551 Opts.ObjCSubscriptingLegacyRuntime = 1552 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1553 } 1554 1555 if (Args.hasArg(OPT_fgnu89_inline)) { 1556 if (Opts.CPlusPlus) 1557 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline" 1558 << "C++/ObjC++"; 1559 else 1560 Opts.GNUInline = 1; 1561 } 1562 1563 if (Args.hasArg(OPT_fapple_kext)) { 1564 if (!Opts.CPlusPlus) 1565 Diags.Report(diag::warn_c_kext); 1566 else 1567 Opts.AppleKext = 1; 1568 } 1569 1570 if (Args.hasArg(OPT_print_ivar_layout)) 1571 Opts.ObjCGCBitmapPrint = 1; 1572 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1573 Opts.NoConstantCFStrings = 1; 1574 1575 if (Args.hasArg(OPT_faltivec)) 1576 Opts.AltiVec = 1; 1577 1578 if (Args.hasArg(OPT_fzvector)) 1579 Opts.ZVector = 1; 1580 1581 if (Args.hasArg(OPT_pthread)) 1582 Opts.POSIXThreads = 1; 1583 1584 // The value-visibility mode defaults to "default". 1585 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1586 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1587 } else { 1588 Opts.setValueVisibilityMode(DefaultVisibility); 1589 } 1590 1591 // The type-visibility mode defaults to the value-visibility mode. 1592 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1593 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1594 } else { 1595 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1596 } 1597 1598 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1599 Opts.InlineVisibilityHidden = 1; 1600 1601 if (Args.hasArg(OPT_ftrapv)) { 1602 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1603 // Set the handler, if one is specified. 1604 Opts.OverflowHandler = 1605 Args.getLastArgValue(OPT_ftrapv_handler); 1606 } 1607 else if (Args.hasArg(OPT_fwrapv)) 1608 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1609 1610 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1611 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1612 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1613 Opts.MSCompatibilityVersion = 0; 1614 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1615 VersionTuple VT; 1616 if (VT.tryParse(A->getValue())) 1617 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1618 << A->getValue(); 1619 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1620 VT.getMinor().getValueOr(0) * 100000 + 1621 VT.getSubminor().getValueOr(0); 1622 } 1623 1624 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1625 // is specified, or -std is set to a conforming mode. 1626 // Trigraphs are disabled by default in c++1z onwards. 1627 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1628 Opts.Trigraphs = 1629 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1630 1631 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1632 OPT_fno_dollars_in_identifiers, 1633 Opts.DollarIdents); 1634 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1635 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1636 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1637 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1638 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1639 Opts.ConstStrings); 1640 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1641 Opts.LaxVectorConversions = 0; 1642 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1643 Opts.ThreadsafeStatics = 0; 1644 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1645 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1646 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1647 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1648 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1649 1650 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1651 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1652 Opts.Blocks = Args.hasArg(OPT_fblocks); 1653 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1654 Opts.Coroutines = Args.hasArg(OPT_fcoroutines); 1655 Opts.Modules = Args.hasArg(OPT_fmodules); 1656 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1657 Opts.ModulesDeclUse = 1658 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1659 Opts.ModulesLocalVisibility = 1660 Args.hasArg(OPT_fmodules_local_submodule_visibility); 1661 Opts.ModulesSearchAll = Opts.Modules && 1662 !Args.hasArg(OPT_fno_modules_search_all) && 1663 Args.hasArg(OPT_fmodules_search_all); 1664 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1665 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 1666 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1667 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1668 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1669 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1670 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1671 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1672 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1673 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1674 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 1675 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 1676 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1677 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1678 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1679 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1680 Opts.InstantiationDepth = 1681 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags); 1682 Opts.ArrowDepth = 1683 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1684 Opts.ConstexprCallDepth = 1685 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1686 Opts.ConstexprStepLimit = 1687 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1688 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1689 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1690 Opts.NumLargeByValueCopy = 1691 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1692 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1693 Opts.ObjCConstantStringClass = 1694 Args.getLastArgValue(OPT_fconstant_string_class); 1695 Opts.ObjCDefaultSynthProperties = 1696 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 1697 Opts.EncodeExtendedBlockSig = 1698 Args.hasArg(OPT_fencode_extended_block_signature); 1699 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1700 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 1701 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 1702 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 1703 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags); 1704 Opts.Static = Args.hasArg(OPT_static_define); 1705 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 1706 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 1707 || Args.hasArg(OPT_fdump_record_layouts); 1708 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1709 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1710 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1711 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 1712 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 1713 Opts.MRTD = Args.hasArg(OPT_mrtd); 1714 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 1715 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 1716 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 1717 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 1718 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 1719 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 1720 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 1721 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 1722 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 1723 Opts.ImplementationOfModule = 1724 Args.getLastArgValue(OPT_fmodule_implementation_of); 1725 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 1726 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 1727 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 1728 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns); 1729 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 1730 1731 // __declspec is enabled by default for the PS4 by the driver, and also 1732 // enabled for Microsoft Extensions or Borland Extensions, here. 1733 // 1734 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 1735 // CUDA extension, however it is required for supporting cuda_builtin_vars.h, 1736 // which uses __declspec(property). Once that has been rewritten in terms of 1737 // something more generic, remove the Opts.CUDA term here. 1738 Opts.DeclSpecKeyword = 1739 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 1740 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 1741 1742 if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() && 1743 Opts.CurrentModule != Opts.ImplementationOfModule) { 1744 Diags.Report(diag::err_conflicting_module_names) 1745 << Opts.CurrentModule << Opts.ImplementationOfModule; 1746 } 1747 1748 // For now, we only support local submodule visibility in C++ (because we 1749 // heavily depend on the ODR for merging redefinitions). 1750 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) 1751 Diags.Report(diag::err_drv_argument_not_allowed_with) 1752 << "-fmodules-local-submodule-visibility" << "C"; 1753 1754 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 1755 switch (llvm::StringSwitch<unsigned>(A->getValue()) 1756 .Case("target", LangOptions::ASMM_Target) 1757 .Case("no", LangOptions::ASMM_Off) 1758 .Case("yes", LangOptions::ASMM_On) 1759 .Default(255)) { 1760 default: 1761 Diags.Report(diag::err_drv_invalid_value) 1762 << "-faddress-space-map-mangling=" << A->getValue(); 1763 break; 1764 case LangOptions::ASMM_Target: 1765 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 1766 break; 1767 case LangOptions::ASMM_On: 1768 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 1769 break; 1770 case LangOptions::ASMM_Off: 1771 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 1772 break; 1773 } 1774 } 1775 1776 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 1777 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 1778 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 1779 A->getValue()) 1780 .Case("single", 1781 LangOptions::PPTMK_FullGeneralitySingleInheritance) 1782 .Case("multiple", 1783 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 1784 .Case("virtual", 1785 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 1786 .Default(LangOptions::PPTMK_BestCase); 1787 if (InheritanceModel == LangOptions::PPTMK_BestCase) 1788 Diags.Report(diag::err_drv_invalid_value) 1789 << "-fms-memptr-rep=" << A->getValue(); 1790 1791 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 1792 } 1793 1794 // Check if -fopenmp is specified. 1795 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp); 1796 Opts.OpenMPUseTLS = 1797 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 1798 Opts.OpenMPIsDevice = 1799 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 1800 1801 // Get the OpenMP target triples if any. 1802 if (Arg *A = Args.getLastArg(options::OPT_omptargets_EQ)) { 1803 1804 for (unsigned i = 0; i < A->getNumValues(); ++i) { 1805 llvm::Triple TT(A->getValue(i)); 1806 1807 if (TT.getArch() == llvm::Triple::UnknownArch) 1808 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 1809 else 1810 Opts.OMPTargetTriples.push_back(TT); 1811 } 1812 } 1813 1814 // Get OpenMP host file path if any and report if a non existent file is 1815 // found 1816 if (Arg *A = Args.getLastArg(options::OPT_omp_host_ir_file_path)) { 1817 Opts.OMPHostIRFile = A->getValue(); 1818 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 1819 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 1820 << Opts.OMPHostIRFile; 1821 } 1822 1823 // Record whether the __DEPRECATED define was requested. 1824 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 1825 OPT_fno_deprecated_macro, 1826 Opts.Deprecated); 1827 1828 // FIXME: Eliminate this dependency. 1829 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 1830 OptSize = getOptimizationLevelSize(Args); 1831 Opts.Optimize = Opt != 0; 1832 Opts.OptimizeSize = OptSize != 0; 1833 1834 // This is the __NO_INLINE__ define, which just depends on things like the 1835 // optimization level and -fno-inline, not actually whether the backend has 1836 // inlining enabled. 1837 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 1838 1839 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 1840 Args.hasArg(OPT_cl_fast_relaxed_math); 1841 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 1842 Args.hasArg(OPT_cl_finite_math_only) || 1843 Args.hasArg(OPT_cl_fast_relaxed_math); 1844 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 1845 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 1846 Args.hasArg(OPT_cl_fast_relaxed_math); 1847 1848 Opts.RetainCommentsFromSystemHeaders = 1849 Args.hasArg(OPT_fretain_comments_from_system_headers); 1850 1851 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 1852 switch (SSP) { 1853 default: 1854 Diags.Report(diag::err_drv_invalid_value) 1855 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 1856 break; 1857 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 1858 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 1859 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 1860 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 1861 } 1862 1863 // Parse -fsanitize= arguments. 1864 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 1865 Diags, Opts.Sanitize); 1866 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 1867 Opts.SanitizeAddressFieldPadding = 1868 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 1869 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 1870 } 1871 1872 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 1873 FileManager &FileMgr, 1874 DiagnosticsEngine &Diags) { 1875 using namespace options; 1876 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 1877 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 1878 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 1879 Opts.TokenCache = A->getValue(); 1880 else 1881 Opts.TokenCache = Opts.ImplicitPTHInclude; 1882 Opts.UsePredefines = !Args.hasArg(OPT_undef); 1883 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 1884 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 1885 1886 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 1887 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 1888 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 1889 1890 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 1891 StringRef Value(A->getValue()); 1892 size_t Comma = Value.find(','); 1893 unsigned Bytes = 0; 1894 unsigned EndOfLine = 0; 1895 1896 if (Comma == StringRef::npos || 1897 Value.substr(0, Comma).getAsInteger(10, Bytes) || 1898 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 1899 Diags.Report(diag::err_drv_preamble_format); 1900 else { 1901 Opts.PrecompiledPreambleBytes.first = Bytes; 1902 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 1903 } 1904 } 1905 1906 // Add macros from the command line. 1907 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 1908 if (A->getOption().matches(OPT_D)) 1909 Opts.addMacroDef(A->getValue()); 1910 else 1911 Opts.addMacroUndef(A->getValue()); 1912 } 1913 1914 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 1915 1916 // Add the ordered list of -includes. 1917 for (const Arg *A : Args.filtered(OPT_include)) 1918 Opts.Includes.emplace_back(A->getValue()); 1919 1920 for (const Arg *A : Args.filtered(OPT_chain_include)) 1921 Opts.ChainedIncludes.emplace_back(A->getValue()); 1922 1923 // Include 'altivec.h' if -faltivec option present 1924 if (Args.hasArg(OPT_faltivec)) 1925 Opts.Includes.emplace_back("altivec.h"); 1926 1927 for (const Arg *A : Args.filtered(OPT_remap_file)) { 1928 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 1929 1930 if (Split.second.empty()) { 1931 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 1932 continue; 1933 } 1934 1935 Opts.addRemappedFile(Split.first, Split.second); 1936 } 1937 1938 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 1939 StringRef Name = A->getValue(); 1940 unsigned Library = llvm::StringSwitch<unsigned>(Name) 1941 .Case("libc++", ARCXX_libcxx) 1942 .Case("libstdc++", ARCXX_libstdcxx) 1943 .Case("none", ARCXX_nolib) 1944 .Default(~0U); 1945 if (Library == ~0U) 1946 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1947 else 1948 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 1949 } 1950 } 1951 1952 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 1953 ArgList &Args, 1954 frontend::ActionKind Action) { 1955 using namespace options; 1956 1957 switch (Action) { 1958 case frontend::ASTDeclList: 1959 case frontend::ASTDump: 1960 case frontend::ASTPrint: 1961 case frontend::ASTView: 1962 case frontend::EmitAssembly: 1963 case frontend::EmitBC: 1964 case frontend::EmitHTML: 1965 case frontend::EmitLLVM: 1966 case frontend::EmitLLVMOnly: 1967 case frontend::EmitCodeGenOnly: 1968 case frontend::EmitObj: 1969 case frontend::FixIt: 1970 case frontend::GenerateModule: 1971 case frontend::GeneratePCH: 1972 case frontend::GeneratePTH: 1973 case frontend::ParseSyntaxOnly: 1974 case frontend::ModuleFileInfo: 1975 case frontend::VerifyPCH: 1976 case frontend::PluginAction: 1977 case frontend::PrintDeclContext: 1978 case frontend::RewriteObjC: 1979 case frontend::RewriteTest: 1980 case frontend::RunAnalysis: 1981 case frontend::MigrateSource: 1982 Opts.ShowCPP = 0; 1983 break; 1984 1985 case frontend::DumpRawTokens: 1986 case frontend::DumpTokens: 1987 case frontend::InitOnly: 1988 case frontend::PrintPreamble: 1989 case frontend::PrintPreprocessedInput: 1990 case frontend::RewriteMacros: 1991 case frontend::RunPreprocessorOnly: 1992 Opts.ShowCPP = !Args.hasArg(OPT_dM); 1993 break; 1994 } 1995 1996 Opts.ShowComments = Args.hasArg(OPT_C); 1997 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 1998 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 1999 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2000 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2001 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2002 } 2003 2004 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 2005 using namespace options; 2006 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2007 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2008 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2009 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2010 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2011 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2012 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2013 // Use the default target triple if unspecified. 2014 if (Opts.Triple.empty()) 2015 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2016 } 2017 2018 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2019 const char *const *ArgBegin, 2020 const char *const *ArgEnd, 2021 DiagnosticsEngine &Diags) { 2022 bool Success = true; 2023 2024 // Parse the arguments. 2025 std::unique_ptr<OptTable> Opts(createDriverOptTable()); 2026 const unsigned IncludedFlagsBitmask = options::CC1Option; 2027 unsigned MissingArgIndex, MissingArgCount; 2028 InputArgList Args = 2029 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2030 MissingArgCount, IncludedFlagsBitmask); 2031 2032 // Check for missing argument error. 2033 if (MissingArgCount) { 2034 Diags.Report(diag::err_drv_missing_argument) 2035 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2036 Success = false; 2037 } 2038 2039 // Issue errors on unknown arguments. 2040 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2041 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2042 Success = false; 2043 } 2044 2045 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2046 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2047 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2048 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags); 2049 ParseCommentArgs(Res.getLangOpts()->CommentOpts, Args); 2050 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2051 // FIXME: We shouldn't have to pass the DashX option around here 2052 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags); 2053 ParseTargetArgs(Res.getTargetOpts(), Args); 2054 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2055 Res.getTargetOpts()); 2056 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args); 2057 if (DashX == IK_AST || DashX == IK_LLVM_IR) { 2058 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2059 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2060 // what the input type is. 2061 if (Args.hasArg(OPT_fobjc_arc)) 2062 Res.getLangOpts()->ObjCAutoRefCount = 1; 2063 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2064 Diags, Res.getLangOpts()->Sanitize); 2065 } else { 2066 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2067 ParseLangArgs(*Res.getLangOpts(), Args, DashX, Diags); 2068 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2069 Res.getLangOpts()->ObjCExceptions = 1; 2070 } 2071 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2072 // PCH file and find the original header name. Remove the need to do that in 2073 // ParsePreprocessorArgs and remove the FileManager 2074 // parameters from the function and the "FileManager.h" #include. 2075 FileManager FileMgr(Res.getFileSystemOpts()); 2076 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags); 2077 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2078 Res.getFrontendOpts().ProgramAction); 2079 return Success; 2080 } 2081 2082 namespace { 2083 2084 class ModuleSignature { 2085 SmallVector<uint64_t, 16> Data; 2086 unsigned CurBit; 2087 uint64_t CurValue; 2088 2089 public: 2090 ModuleSignature() : CurBit(0), CurValue(0) { } 2091 2092 void add(uint64_t Value, unsigned Bits); 2093 void add(StringRef Value); 2094 void flush(); 2095 2096 llvm::APInt getAsInteger() const; 2097 }; 2098 } 2099 2100 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 2101 CurValue |= Value << CurBit; 2102 if (CurBit + NumBits < 64) { 2103 CurBit += NumBits; 2104 return; 2105 } 2106 2107 // Add the current word. 2108 Data.push_back(CurValue); 2109 2110 if (CurBit) 2111 CurValue = Value >> (64-CurBit); 2112 else 2113 CurValue = 0; 2114 CurBit = (CurBit+NumBits) & 63; 2115 } 2116 2117 void ModuleSignature::flush() { 2118 if (CurBit == 0) 2119 return; 2120 2121 Data.push_back(CurValue); 2122 CurBit = 0; 2123 CurValue = 0; 2124 } 2125 2126 void ModuleSignature::add(StringRef Value) { 2127 for (auto &c : Value) 2128 add(c, 8); 2129 } 2130 2131 llvm::APInt ModuleSignature::getAsInteger() const { 2132 return llvm::APInt(Data.size() * 64, Data); 2133 } 2134 2135 std::string CompilerInvocation::getModuleHash() const { 2136 // Note: For QoI reasons, the things we use as a hash here should all be 2137 // dumped via the -module-info flag. 2138 using llvm::hash_code; 2139 using llvm::hash_value; 2140 using llvm::hash_combine; 2141 2142 // Start the signature with the compiler version. 2143 // FIXME: We'd rather use something more cryptographically sound than 2144 // CityHash, but this will do for now. 2145 hash_code code = hash_value(getClangFullRepositoryVersion()); 2146 2147 // Extend the signature with the language options 2148 #define LANGOPT(Name, Bits, Default, Description) \ 2149 code = hash_combine(code, LangOpts->Name); 2150 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2151 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2152 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2153 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2154 #include "clang/Basic/LangOptions.def" 2155 2156 for (StringRef Feature : LangOpts->ModuleFeatures) 2157 code = hash_combine(code, Feature); 2158 2159 // Extend the signature with the target options. 2160 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2161 TargetOpts->ABI); 2162 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2163 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2164 2165 // Extend the signature with preprocessor options. 2166 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2167 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2168 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2169 2170 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2171 I = getPreprocessorOpts().Macros.begin(), 2172 IEnd = getPreprocessorOpts().Macros.end(); 2173 I != IEnd; ++I) { 2174 // If we're supposed to ignore this macro for the purposes of modules, 2175 // don't put it into the hash. 2176 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2177 // Check whether we're ignoring this macro. 2178 StringRef MacroDef = I->first; 2179 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first)) 2180 continue; 2181 } 2182 2183 code = hash_combine(code, I->first, I->second); 2184 } 2185 2186 // Extend the signature with the sysroot. 2187 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes, 2188 hsOpts.UseStandardSystemIncludes, 2189 hsOpts.UseStandardCXXIncludes, 2190 hsOpts.UseLibcxx); 2191 code = hash_combine(code, hsOpts.ResourceDir); 2192 2193 // Extend the signature with the user build path. 2194 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2195 2196 // Extend the signature with the module file extensions. 2197 const FrontendOptions &frontendOpts = getFrontendOpts(); 2198 for (auto ext : frontendOpts.ModuleFileExtensions) { 2199 code = ext->hashExtension(code); 2200 } 2201 2202 // Darwin-specific hack: if we have a sysroot, use the contents and 2203 // modification time of 2204 // $sysroot/System/Library/CoreServices/SystemVersion.plist 2205 // as part of the module hash. 2206 if (!hsOpts.Sysroot.empty()) { 2207 SmallString<128> systemVersionFile; 2208 systemVersionFile += hsOpts.Sysroot; 2209 llvm::sys::path::append(systemVersionFile, "System"); 2210 llvm::sys::path::append(systemVersionFile, "Library"); 2211 llvm::sys::path::append(systemVersionFile, "CoreServices"); 2212 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 2213 2214 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 2215 llvm::MemoryBuffer::getFile(systemVersionFile); 2216 if (buffer) { 2217 code = hash_combine(code, buffer.get()->getBuffer()); 2218 2219 struct stat statBuf; 2220 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 2221 code = hash_combine(code, statBuf.st_mtime); 2222 } 2223 } 2224 2225 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2226 } 2227 2228 namespace clang { 2229 2230 template<typename IntTy> 2231 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2232 IntTy Default, 2233 DiagnosticsEngine *Diags) { 2234 IntTy Res = Default; 2235 if (Arg *A = Args.getLastArg(Id)) { 2236 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2237 if (Diags) 2238 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2239 << A->getValue(); 2240 } 2241 } 2242 return Res; 2243 } 2244 2245 2246 // Declared in clang/Frontend/Utils.h. 2247 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2248 DiagnosticsEngine *Diags) { 2249 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2250 } 2251 2252 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2253 uint64_t Default, 2254 DiagnosticsEngine *Diags) { 2255 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2256 } 2257 2258 void BuryPointer(const void *Ptr) { 2259 // This function may be called only a small fixed amount of times per each 2260 // invocation, otherwise we do actually have a leak which we want to report. 2261 // If this function is called more than kGraveYardMaxSize times, the pointers 2262 // will not be properly buried and a leak detector will report a leak, which 2263 // is what we want in such case. 2264 static const size_t kGraveYardMaxSize = 16; 2265 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2266 static std::atomic<unsigned> GraveYardSize; 2267 unsigned Idx = GraveYardSize++; 2268 if (Idx >= kGraveYardMaxSize) 2269 return; 2270 GraveYard[Idx] = Ptr; 2271 } 2272 2273 IntrusiveRefCntPtr<vfs::FileSystem> 2274 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2275 DiagnosticsEngine &Diags) { 2276 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2277 return vfs::getRealFileSystem(); 2278 2279 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2280 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2281 // earlier vfs files are on the bottom 2282 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2283 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2284 llvm::MemoryBuffer::getFile(File); 2285 if (!Buffer) { 2286 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2287 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2288 } 2289 2290 IntrusiveRefCntPtr<vfs::FileSystem> FS = 2291 vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/ nullptr); 2292 if (!FS.get()) { 2293 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2294 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2295 } 2296 Overlay->pushOverlay(FS); 2297 } 2298 return Overlay; 2299 } 2300 } // end namespace clang 2301