1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Frontend/CompilerInvocation.h" 11 #include "TestModuleFileExtension.h" 12 #include "clang/Basic/Builtins.h" 13 #include "clang/Basic/CharInfo.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/ObjCRuntime.h" 22 #include "clang/Basic/Sanitizers.h" 23 #include "clang/Basic/SourceLocation.h" 24 #include "clang/Basic/TargetOptions.h" 25 #include "clang/Basic/Version.h" 26 #include "clang/Basic/Visibility.h" 27 #include "clang/Basic/XRayInstr.h" 28 #include "clang/Config/config.h" 29 #include "clang/Driver/DriverDiagnostic.h" 30 #include "clang/Driver/Options.h" 31 #include "clang/Frontend/CodeGenOptions.h" 32 #include "clang/Frontend/CommandLineSourceLoc.h" 33 #include "clang/Frontend/DependencyOutputOptions.h" 34 #include "clang/Frontend/FrontendDiagnostic.h" 35 #include "clang/Frontend/FrontendOptions.h" 36 #include "clang/Frontend/LangStandard.h" 37 #include "clang/Frontend/MigratorOptions.h" 38 #include "clang/Frontend/PreprocessorOutputOptions.h" 39 #include "clang/Frontend/Utils.h" 40 #include "clang/Lex/HeaderSearchOptions.h" 41 #include "clang/Lex/PreprocessorOptions.h" 42 #include "clang/Sema/CodeCompleteOptions.h" 43 #include "clang/Serialization/ModuleFileExtension.h" 44 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 45 #include "llvm/ADT/APInt.h" 46 #include "llvm/ADT/ArrayRef.h" 47 #include "llvm/ADT/CachedHashString.h" 48 #include "llvm/ADT/Hashing.h" 49 #include "llvm/ADT/None.h" 50 #include "llvm/ADT/Optional.h" 51 #include "llvm/ADT/SmallString.h" 52 #include "llvm/ADT/SmallVector.h" 53 #include "llvm/ADT/StringRef.h" 54 #include "llvm/ADT/StringSwitch.h" 55 #include "llvm/ADT/Triple.h" 56 #include "llvm/ADT/Twine.h" 57 #include "llvm/IR/DebugInfoMetadata.h" 58 #include "llvm/Linker/Linker.h" 59 #include "llvm/MC/MCTargetOptions.h" 60 #include "llvm/Option/Arg.h" 61 #include "llvm/Option/ArgList.h" 62 #include "llvm/Option/OptSpecifier.h" 63 #include "llvm/Option/OptTable.h" 64 #include "llvm/Option/Option.h" 65 #include "llvm/ProfileData/InstrProfReader.h" 66 #include "llvm/Support/CodeGen.h" 67 #include "llvm/Support/Compiler.h" 68 #include "llvm/Support/Error.h" 69 #include "llvm/Support/ErrorHandling.h" 70 #include "llvm/Support/ErrorOr.h" 71 #include "llvm/Support/FileSystem.h" 72 #include "llvm/Support/Host.h" 73 #include "llvm/Support/MathExtras.h" 74 #include "llvm/Support/MemoryBuffer.h" 75 #include "llvm/Support/Path.h" 76 #include "llvm/Support/Process.h" 77 #include "llvm/Support/Regex.h" 78 #include "llvm/Support/VersionTuple.h" 79 #include "llvm/Support/VirtualFileSystem.h" 80 #include "llvm/Support/raw_ostream.h" 81 #include "llvm/Target/TargetOptions.h" 82 #include <algorithm> 83 #include <atomic> 84 #include <cassert> 85 #include <cstddef> 86 #include <cstring> 87 #include <memory> 88 #include <string> 89 #include <tuple> 90 #include <utility> 91 #include <vector> 92 93 using namespace clang; 94 using namespace driver; 95 using namespace options; 96 using namespace llvm::opt; 97 98 //===----------------------------------------------------------------------===// 99 // Initialization. 100 //===----------------------------------------------------------------------===// 101 102 CompilerInvocationBase::CompilerInvocationBase() 103 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 104 DiagnosticOpts(new DiagnosticOptions()), 105 HeaderSearchOpts(new HeaderSearchOptions()), 106 PreprocessorOpts(new PreprocessorOptions()) {} 107 108 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 109 : LangOpts(new LangOptions(*X.getLangOpts())), 110 TargetOpts(new TargetOptions(X.getTargetOpts())), 111 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 112 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 113 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 114 115 CompilerInvocationBase::~CompilerInvocationBase() = default; 116 117 //===----------------------------------------------------------------------===// 118 // Deserialization (from args) 119 //===----------------------------------------------------------------------===// 120 121 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 122 DiagnosticsEngine &Diags) { 123 unsigned DefaultOpt = llvm::CodeGenOpt::None; 124 if (IK.getLanguage() == InputKind::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 125 DefaultOpt = llvm::CodeGenOpt::Default; 126 127 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 128 if (A->getOption().matches(options::OPT_O0)) 129 return llvm::CodeGenOpt::None; 130 131 if (A->getOption().matches(options::OPT_Ofast)) 132 return llvm::CodeGenOpt::Aggressive; 133 134 assert(A->getOption().matches(options::OPT_O)); 135 136 StringRef S(A->getValue()); 137 if (S == "s" || S == "z" || S.empty()) 138 return llvm::CodeGenOpt::Default; 139 140 if (S == "g") 141 return llvm::CodeGenOpt::Less; 142 143 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 144 } 145 146 return DefaultOpt; 147 } 148 149 static unsigned getOptimizationLevelSize(ArgList &Args) { 150 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 151 if (A->getOption().matches(options::OPT_O)) { 152 switch (A->getValue()[0]) { 153 default: 154 return 0; 155 case 's': 156 return 1; 157 case 'z': 158 return 2; 159 } 160 } 161 } 162 return 0; 163 } 164 165 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 166 OptSpecifier GroupWithValue, 167 std::vector<std::string> &Diagnostics) { 168 for (auto *A : Args.filtered(Group)) { 169 if (A->getOption().getKind() == Option::FlagClass) { 170 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 171 // its name (minus the "W" or "R" at the beginning) to the warning list. 172 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 173 } else if (A->getOption().matches(GroupWithValue)) { 174 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 175 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 176 } else { 177 // Otherwise, add its value (for OPT_W_Joined and similar). 178 for (const auto *Arg : A->getValues()) 179 Diagnostics.emplace_back(Arg); 180 } 181 } 182 } 183 184 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 185 // it won't verify the input. 186 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 187 DiagnosticsEngine *Diags); 188 189 static void getAllNoBuiltinFuncValues(ArgList &Args, 190 std::vector<std::string> &Funcs) { 191 SmallVector<const char *, 8> Values; 192 for (const auto &Arg : Args) { 193 const Option &O = Arg->getOption(); 194 if (O.matches(options::OPT_fno_builtin_)) { 195 const char *FuncName = Arg->getValue(); 196 if (Builtin::Context::isBuiltinFunc(FuncName)) 197 Values.push_back(FuncName); 198 } 199 } 200 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 201 } 202 203 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 204 DiagnosticsEngine &Diags) { 205 bool Success = true; 206 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 207 StringRef Name = A->getValue(); 208 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 209 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 210 .Case(CMDFLAG, NAME##Model) 211 #include "clang/StaticAnalyzer/Core/Analyses.def" 212 .Default(NumStores); 213 if (Value == NumStores) { 214 Diags.Report(diag::err_drv_invalid_value) 215 << A->getAsString(Args) << Name; 216 Success = false; 217 } else { 218 Opts.AnalysisStoreOpt = Value; 219 } 220 } 221 222 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 223 StringRef Name = A->getValue(); 224 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 225 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 226 .Case(CMDFLAG, NAME##Model) 227 #include "clang/StaticAnalyzer/Core/Analyses.def" 228 .Default(NumConstraints); 229 if (Value == NumConstraints) { 230 Diags.Report(diag::err_drv_invalid_value) 231 << A->getAsString(Args) << Name; 232 Success = false; 233 } else { 234 Opts.AnalysisConstraintsOpt = Value; 235 } 236 } 237 238 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 239 StringRef Name = A->getValue(); 240 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 241 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 242 .Case(CMDFLAG, PD_##NAME) 243 #include "clang/StaticAnalyzer/Core/Analyses.def" 244 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 245 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 246 Diags.Report(diag::err_drv_invalid_value) 247 << A->getAsString(Args) << Name; 248 Success = false; 249 } else { 250 Opts.AnalysisDiagOpt = Value; 251 } 252 } 253 254 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 255 StringRef Name = A->getValue(); 256 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 257 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 258 .Case(CMDFLAG, NAME) 259 #include "clang/StaticAnalyzer/Core/Analyses.def" 260 .Default(NumPurgeModes); 261 if (Value == NumPurgeModes) { 262 Diags.Report(diag::err_drv_invalid_value) 263 << A->getAsString(Args) << Name; 264 Success = false; 265 } else { 266 Opts.AnalysisPurgeOpt = Value; 267 } 268 } 269 270 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 271 StringRef Name = A->getValue(); 272 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 273 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 274 .Case(CMDFLAG, NAME) 275 #include "clang/StaticAnalyzer/Core/Analyses.def" 276 .Default(NumInliningModes); 277 if (Value == NumInliningModes) { 278 Diags.Report(diag::err_drv_invalid_value) 279 << A->getAsString(Args) << Name; 280 Success = false; 281 } else { 282 Opts.InliningMode = Value; 283 } 284 } 285 286 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 287 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 288 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 289 Opts.ShouldEmitErrorsOnInvalidConfigValue = 290 /* negated */!llvm::StringSwitch<bool>( 291 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 292 .Case("true", true) 293 .Case("false", false) 294 .Default(false); 295 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 296 297 Opts.visualizeExplodedGraphWithGraphViz = 298 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 299 Opts.DumpExplodedGraphTo = Args.getLastArgValue(OPT_analyzer_dump_egraph); 300 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 301 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 302 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 303 Opts.AnalyzeNestedBlocks = 304 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 305 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 306 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 307 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 308 Opts.maxBlockVisitOnPath = 309 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 310 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 311 Opts.InlineMaxStackDepth = 312 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 313 Opts.InlineMaxStackDepth, Diags); 314 315 Opts.CheckersControlList.clear(); 316 for (const Arg *A : 317 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 318 A->claim(); 319 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 320 // We can have a list of comma separated checker names, e.g: 321 // '-analyzer-checker=cocoa,unix' 322 StringRef checkerList = A->getValue(); 323 SmallVector<StringRef, 4> checkers; 324 checkerList.split(checkers, ","); 325 for (auto checker : checkers) 326 Opts.CheckersControlList.emplace_back(checker, enable); 327 } 328 329 // Go through the analyzer configuration options. 330 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 331 332 // We can have a list of comma separated config names, e.g: 333 // '-analyzer-config key1=val1,key2=val2' 334 StringRef configList = A->getValue(); 335 SmallVector<StringRef, 4> configVals; 336 configList.split(configVals, ","); 337 for (const auto &configVal : configVals) { 338 StringRef key, val; 339 std::tie(key, val) = configVal.split("="); 340 if (val.empty()) { 341 Diags.Report(SourceLocation(), 342 diag::err_analyzer_config_no_value) << configVal; 343 Success = false; 344 break; 345 } 346 if (val.find('=') != StringRef::npos) { 347 Diags.Report(SourceLocation(), 348 diag::err_analyzer_config_multiple_values) 349 << configVal; 350 Success = false; 351 break; 352 } 353 354 // TODO: Check checker options too, possibly in CheckerRegistry. 355 // Leave unknown non-checker configs unclaimed. 356 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 357 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 358 Diags.Report(diag::err_analyzer_config_unknown) << key; 359 continue; 360 } 361 362 A->claim(); 363 Opts.Config[key] = val; 364 } 365 } 366 367 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 368 parseAnalyzerConfigs(Opts, &Diags); 369 else 370 parseAnalyzerConfigs(Opts, nullptr); 371 372 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 373 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 374 if (i != 0) 375 os << " "; 376 os << Args.getArgString(i); 377 } 378 os.flush(); 379 380 return Success; 381 } 382 383 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 384 StringRef OptionName, StringRef DefaultVal) { 385 return Config.insert({OptionName, DefaultVal}).first->second; 386 } 387 388 static void initOption(AnalyzerOptions::ConfigTable &Config, 389 DiagnosticsEngine *Diags, 390 StringRef &OptionField, StringRef Name, 391 StringRef DefaultVal) { 392 // String options may be known to invalid (e.g. if the expected string is a 393 // file name, but the file does not exist), those will have to be checked in 394 // parseConfigs. 395 OptionField = getStringOption(Config, Name, DefaultVal); 396 } 397 398 static void initOption(AnalyzerOptions::ConfigTable &Config, 399 DiagnosticsEngine *Diags, 400 bool &OptionField, StringRef Name, bool DefaultVal) { 401 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 402 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 403 .Case("true", true) 404 .Case("false", false) 405 .Default(None); 406 407 if (!PossiblyInvalidVal) { 408 if (Diags) 409 Diags->Report(diag::err_analyzer_config_invalid_input) 410 << Name << "a boolean"; 411 else 412 OptionField = DefaultVal; 413 } else 414 OptionField = PossiblyInvalidVal.getValue(); 415 } 416 417 static void initOption(AnalyzerOptions::ConfigTable &Config, 418 DiagnosticsEngine *Diags, 419 unsigned &OptionField, StringRef Name, 420 unsigned DefaultVal) { 421 422 OptionField = DefaultVal; 423 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 424 .getAsInteger(10, OptionField); 425 if (Diags && HasFailed) 426 Diags->Report(diag::err_analyzer_config_invalid_input) 427 << Name << "an unsigned"; 428 } 429 430 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 431 DiagnosticsEngine *Diags) { 432 // TODO: There's no need to store the entire configtable, it'd be plenty 433 // enough tostore checker options. 434 435 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 436 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 437 438 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 439 SHALLOW_VAL, DEEP_VAL) \ 440 switch (AnOpts.getUserMode()) { \ 441 case UMK_Shallow: \ 442 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 443 break; \ 444 case UMK_Deep: \ 445 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 446 break; \ 447 } \ 448 449 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 450 #undef ANALYZER_OPTION 451 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 452 453 // At this point, AnalyzerOptions is configured. Let's validate some options. 454 455 if (!Diags) 456 return; 457 458 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 459 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 460 << "a filename"; 461 462 if (!AnOpts.ModelPath.empty() && 463 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 464 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 465 << "a filename"; 466 } 467 468 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 469 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 470 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 471 return true; 472 } 473 474 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 475 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 476 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 477 } 478 479 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 480 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 481 StringRef Value = A->getValue(); 482 if (Value == "small" || Value == "kernel" || Value == "medium" || 483 Value == "large" || Value == "tiny") 484 return Value; 485 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 486 } 487 return "default"; 488 } 489 490 static llvm::Reloc::Model getRelocModel(ArgList &Args, 491 DiagnosticsEngine &Diags) { 492 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 493 StringRef Value = A->getValue(); 494 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 495 .Case("static", llvm::Reloc::Static) 496 .Case("pic", llvm::Reloc::PIC_) 497 .Case("ropi", llvm::Reloc::ROPI) 498 .Case("rwpi", llvm::Reloc::RWPI) 499 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 500 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 501 .Default(None); 502 if (RM.hasValue()) 503 return *RM; 504 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 505 } 506 return llvm::Reloc::PIC_; 507 } 508 509 /// Create a new Regex instance out of the string value in \p RpassArg. 510 /// It returns a pointer to the newly generated Regex instance. 511 static std::shared_ptr<llvm::Regex> 512 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 513 Arg *RpassArg) { 514 StringRef Val = RpassArg->getValue(); 515 std::string RegexError; 516 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 517 if (!Pattern->isValid(RegexError)) { 518 Diags.Report(diag::err_drv_optimization_remark_pattern) 519 << RegexError << RpassArg->getAsString(Args); 520 Pattern.reset(); 521 } 522 return Pattern; 523 } 524 525 static bool parseDiagnosticLevelMask(StringRef FlagName, 526 const std::vector<std::string> &Levels, 527 DiagnosticsEngine *Diags, 528 DiagnosticLevelMask &M) { 529 bool Success = true; 530 for (const auto &Level : Levels) { 531 DiagnosticLevelMask const PM = 532 llvm::StringSwitch<DiagnosticLevelMask>(Level) 533 .Case("note", DiagnosticLevelMask::Note) 534 .Case("remark", DiagnosticLevelMask::Remark) 535 .Case("warning", DiagnosticLevelMask::Warning) 536 .Case("error", DiagnosticLevelMask::Error) 537 .Default(DiagnosticLevelMask::None); 538 if (PM == DiagnosticLevelMask::None) { 539 Success = false; 540 if (Diags) 541 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 542 } 543 M = M | PM; 544 } 545 return Success; 546 } 547 548 static void parseSanitizerKinds(StringRef FlagName, 549 const std::vector<std::string> &Sanitizers, 550 DiagnosticsEngine &Diags, SanitizerSet &S) { 551 for (const auto &Sanitizer : Sanitizers) { 552 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 553 if (K == 0) 554 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 555 else 556 S.set(K, true); 557 } 558 } 559 560 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 561 ArgList &Args, DiagnosticsEngine &D, 562 XRayInstrSet &S) { 563 llvm::SmallVector<StringRef, 2> BundleParts; 564 llvm::SplitString(Bundle, BundleParts, ","); 565 for (const auto B : BundleParts) { 566 auto Mask = parseXRayInstrValue(B); 567 if (Mask == XRayInstrKind::None) 568 if (B != "none") 569 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 570 else 571 S.Mask = Mask; 572 else if (Mask == XRayInstrKind::All) 573 S.Mask = Mask; 574 else 575 S.set(Mask, true); 576 } 577 } 578 579 // Set the profile kind for fprofile-instrument. 580 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 581 DiagnosticsEngine &Diags) { 582 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 583 if (A == nullptr) 584 return; 585 StringRef S = A->getValue(); 586 unsigned I = llvm::StringSwitch<unsigned>(S) 587 .Case("none", CodeGenOptions::ProfileNone) 588 .Case("clang", CodeGenOptions::ProfileClangInstr) 589 .Case("llvm", CodeGenOptions::ProfileIRInstr) 590 .Default(~0U); 591 if (I == ~0U) { 592 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 593 << S; 594 return; 595 } 596 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 597 Opts.setProfileInstr(Instrumentor); 598 } 599 600 // Set the profile kind using fprofile-instrument-use-path. 601 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 602 const Twine &ProfileName) { 603 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 604 // In error, return silently and let Clang PGOUse report the error message. 605 if (auto E = ReaderOrErr.takeError()) { 606 llvm::consumeError(std::move(E)); 607 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 608 return; 609 } 610 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 611 std::move(ReaderOrErr.get()); 612 if (PGOReader->isIRLevelProfile()) 613 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 614 else 615 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 616 } 617 618 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 619 DiagnosticsEngine &Diags, 620 const TargetOptions &TargetOpts, 621 const FrontendOptions &FrontendOpts) { 622 bool Success = true; 623 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 624 625 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 626 // TODO: This could be done in Driver 627 unsigned MaxOptLevel = 3; 628 if (OptimizationLevel > MaxOptLevel) { 629 // If the optimization level is not supported, fall back on the default 630 // optimization 631 Diags.Report(diag::warn_drv_optimization_value) 632 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 633 OptimizationLevel = MaxOptLevel; 634 } 635 Opts.OptimizationLevel = OptimizationLevel; 636 637 // At O0 we want to fully disable inlining outside of cases marked with 638 // 'alwaysinline' that are required for correctness. 639 Opts.setInlining((Opts.OptimizationLevel == 0) 640 ? CodeGenOptions::OnlyAlwaysInlining 641 : CodeGenOptions::NormalInlining); 642 // Explicit inlining flags can disable some or all inlining even at 643 // optimization levels above zero. 644 if (Arg *InlineArg = Args.getLastArg( 645 options::OPT_finline_functions, options::OPT_finline_hint_functions, 646 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 647 if (Opts.OptimizationLevel > 0) { 648 const Option &InlineOpt = InlineArg->getOption(); 649 if (InlineOpt.matches(options::OPT_finline_functions)) 650 Opts.setInlining(CodeGenOptions::NormalInlining); 651 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 652 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 653 else 654 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 655 } 656 } 657 658 Opts.ExperimentalNewPassManager = Args.hasFlag( 659 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 660 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 661 662 Opts.DebugPassManager = 663 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 664 /* Default */ false); 665 666 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 667 StringRef Name = A->getValue(); 668 if (Name == "Accelerate") 669 Opts.setVecLib(CodeGenOptions::Accelerate); 670 else if (Name == "SVML") 671 Opts.setVecLib(CodeGenOptions::SVML); 672 else if (Name == "none") 673 Opts.setVecLib(CodeGenOptions::NoLibrary); 674 else 675 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 676 } 677 678 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 679 unsigned Val = 680 llvm::StringSwitch<unsigned>(A->getValue()) 681 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 682 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 683 .Case("limited", codegenoptions::LimitedDebugInfo) 684 .Case("standalone", codegenoptions::FullDebugInfo) 685 .Default(~0U); 686 if (Val == ~0U) 687 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 688 << A->getValue(); 689 else 690 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 691 } 692 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 693 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 694 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 695 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 696 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 697 .Default(~0U); 698 if (Val == ~0U) 699 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 700 << A->getValue(); 701 else 702 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 703 } 704 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 705 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 706 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 707 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 708 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 709 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 710 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 711 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 712 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 713 714 if (Arg *A = 715 Args.getLastArg(OPT_enable_split_dwarf, OPT_enable_split_dwarf_EQ)) { 716 if (A->getOption().matches(options::OPT_enable_split_dwarf)) { 717 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 718 } else { 719 StringRef Name = A->getValue(); 720 if (Name == "single") 721 Opts.setSplitDwarfMode(CodeGenOptions::SingleFileFission); 722 else if (Name == "split") 723 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 724 else 725 Diags.Report(diag::err_drv_invalid_value) 726 << A->getAsString(Args) << Name; 727 } 728 } 729 730 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 731 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 732 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 733 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 734 735 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 736 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 737 738 if (const Arg *A = 739 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 740 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 741 742 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 743 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 744 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 745 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 746 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 747 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 748 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 749 OPT_fuse_register_sized_bitfield_access); 750 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 751 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 752 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 753 Args.hasArg(OPT_new_struct_path_tbaa); 754 Opts.FineGrainedBitfieldAccesses = 755 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 756 OPT_fno_fine_grained_bitfield_accesses, false); 757 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 758 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 759 Opts.NoCommon = Args.hasArg(OPT_fno_common); 760 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 761 Opts.OptimizeSize = getOptimizationLevelSize(Args); 762 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 763 Args.hasArg(OPT_ffreestanding)); 764 if (Opts.SimplifyLibCalls) 765 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 766 Opts.UnrollLoops = 767 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 768 (Opts.OptimizationLevel > 1)); 769 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 770 771 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 772 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 773 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 774 Opts.DebugInfoForProfiling = Args.hasFlag( 775 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 776 Opts.DebugNameTable = static_cast<unsigned>( 777 Args.hasArg(OPT_ggnu_pubnames) 778 ? llvm::DICompileUnit::DebugNameTableKind::GNU 779 : Args.hasArg(OPT_gpubnames) 780 ? llvm::DICompileUnit::DebugNameTableKind::Default 781 : llvm::DICompileUnit::DebugNameTableKind::None); 782 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 783 784 setPGOInstrumentor(Opts, Args, Diags); 785 Opts.InstrProfileOutput = 786 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 787 Opts.ProfileInstrumentUsePath = 788 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 789 if (!Opts.ProfileInstrumentUsePath.empty()) 790 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 791 Opts.ProfileRemappingFile = 792 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ); 793 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 794 Diags.Report(diag::err_drv_argument_only_allowed_with) 795 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 796 << "-fexperimental-new-pass-manager"; 797 } 798 799 Opts.CoverageMapping = 800 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 801 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 802 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 803 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 804 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 805 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 806 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 807 Opts.RegisterGlobalDtorsWithAtExit = 808 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 809 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 810 Opts.CodeModel = TargetOpts.CodeModel; 811 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 812 Opts.DisableFPElim = 813 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 814 Opts.DisableFree = Args.hasArg(OPT_disable_free); 815 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 816 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 817 Opts.NoEscapingBlockTailCalls = 818 Args.hasArg(OPT_fno_escaping_block_tail_calls); 819 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 820 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 821 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 822 Args.hasArg(OPT_cl_fast_relaxed_math); 823 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 824 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 825 Args.hasArg(OPT_cl_finite_math_only) || 826 Args.hasArg(OPT_cl_fast_relaxed_math)); 827 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 828 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 829 Args.hasArg(OPT_cl_finite_math_only) || 830 Args.hasArg(OPT_cl_fast_relaxed_math)); 831 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 832 Args.hasArg(OPT_cl_no_signed_zeros) || 833 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 834 Args.hasArg(OPT_cl_fast_relaxed_math)); 835 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 836 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) || 837 (Args.hasArg(OPT_fcuda_is_device) && 838 Args.hasArg(OPT_fcuda_flush_denormals_to_zero)); 839 Opts.CorrectlyRoundedDivSqrt = 840 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 841 Opts.UniformWGSize = 842 Args.hasArg(OPT_cl_uniform_work_group_size); 843 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 844 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 845 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 846 Opts.StrictFloatCastOverflow = 847 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 848 849 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 850 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 851 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 852 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 853 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 854 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 855 Opts.IncrementalLinkerCompatible = 856 Args.hasArg(OPT_mincremental_linker_compatible); 857 Opts.PIECopyRelocations = 858 Args.hasArg(OPT_mpie_copy_relocations); 859 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 860 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 861 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 862 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 863 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 864 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 865 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 866 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 867 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 868 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 869 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 870 Args.hasArg(OPT_cl_fast_relaxed_math); 871 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 872 Opts.RelocationModel = getRelocModel(Args, Diags); 873 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 874 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 875 Diags.Report(diag::err_drv_invalid_value) 876 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 877 << Opts.ThreadModel; 878 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 879 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 880 881 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 882 OPT_fno_function_sections, false); 883 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 884 OPT_fno_data_sections, false); 885 Opts.StackSizeSection = 886 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 887 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 888 OPT_fno_unique_section_names, true); 889 890 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 891 892 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 893 894 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 895 896 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 897 898 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 899 Opts.PrepareForThinLTO = false; 900 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 901 StringRef S = A->getValue(); 902 if (S == "thin") 903 Opts.PrepareForThinLTO = true; 904 else if (S != "full") 905 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 906 } 907 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 908 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 909 if (IK.getLanguage() != InputKind::LLVM_IR) 910 Diags.Report(diag::err_drv_argument_only_allowed_with) 911 << A->getAsString(Args) << "-x ir"; 912 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 913 } 914 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 915 Opts.SaveTempsFilePrefix = 916 llvm::StringSwitch<std::string>(A->getValue()) 917 .Case("obj", FrontendOpts.OutputFile) 918 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 919 920 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 921 922 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 923 924 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 925 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 926 927 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 928 929 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 930 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 931 932 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 933 934 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 935 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 936 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 937 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 938 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 939 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 940 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 941 Opts.CoverageNoFunctionNamesInData = 942 Args.hasArg(OPT_coverage_no_function_names_in_data); 943 Opts.ProfileFilterFiles = 944 Args.getLastArgValue(OPT_fprofile_filter_files_EQ); 945 Opts.ProfileExcludeFiles = 946 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ); 947 Opts.CoverageExitBlockBeforeBody = 948 Args.hasArg(OPT_coverage_exit_block_before_body); 949 if (Args.hasArg(OPT_coverage_version_EQ)) { 950 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 951 if (CoverageVersion.size() != 4) { 952 Diags.Report(diag::err_drv_invalid_value) 953 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 954 << CoverageVersion; 955 } else { 956 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 957 } 958 } 959 } 960 // Handle -fembed-bitcode option. 961 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 962 StringRef Name = A->getValue(); 963 unsigned Model = llvm::StringSwitch<unsigned>(Name) 964 .Case("off", CodeGenOptions::Embed_Off) 965 .Case("all", CodeGenOptions::Embed_All) 966 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 967 .Case("marker", CodeGenOptions::Embed_Marker) 968 .Default(~0U); 969 if (Model == ~0U) { 970 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 971 Success = false; 972 } else 973 Opts.setEmbedBitcode( 974 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 975 } 976 // FIXME: For backend options that are not yet recorded as function 977 // attributes in the IR, keep track of them so we can embed them in a 978 // separate data section and use them when building the bitcode. 979 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 980 for (const auto &A : Args) { 981 // Do not encode output and input. 982 if (A->getOption().getID() == options::OPT_o || 983 A->getOption().getID() == options::OPT_INPUT || 984 A->getOption().getID() == options::OPT_x || 985 A->getOption().getID() == options::OPT_fembed_bitcode || 986 (A->getOption().getGroup().isValid() && 987 A->getOption().getGroup().getID() == options::OPT_W_Group)) 988 continue; 989 ArgStringList ASL; 990 A->render(Args, ASL); 991 for (const auto &arg : ASL) { 992 StringRef ArgStr(arg); 993 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 994 // using \00 to seperate each commandline options. 995 Opts.CmdArgs.push_back('\0'); 996 } 997 } 998 } 999 1000 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1001 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1002 Opts.InstrumentFunctionsAfterInlining = 1003 Args.hasArg(OPT_finstrument_functions_after_inlining); 1004 Opts.InstrumentFunctionEntryBare = 1005 Args.hasArg(OPT_finstrument_function_entry_bare); 1006 1007 Opts.XRayInstrumentFunctions = 1008 Args.hasArg(OPT_fxray_instrument); 1009 Opts.XRayAlwaysEmitCustomEvents = 1010 Args.hasArg(OPT_fxray_always_emit_customevents); 1011 Opts.XRayAlwaysEmitTypedEvents = 1012 Args.hasArg(OPT_fxray_always_emit_typedevents); 1013 Opts.XRayInstructionThreshold = 1014 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1015 1016 auto XRayInstrBundles = 1017 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1018 if (XRayInstrBundles.empty()) 1019 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1020 else 1021 for (const auto &A : XRayInstrBundles) 1022 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1023 Diags, Opts.XRayInstrumentationBundle); 1024 1025 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1026 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1027 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1028 1029 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1030 StringRef Name = A->getValue(); 1031 if (Name == "full") { 1032 Opts.CFProtectionReturn = 1; 1033 Opts.CFProtectionBranch = 1; 1034 } else if (Name == "return") 1035 Opts.CFProtectionReturn = 1; 1036 else if (Name == "branch") 1037 Opts.CFProtectionBranch = 1; 1038 else if (Name != "none") { 1039 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1040 Success = false; 1041 } 1042 } 1043 1044 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1045 OPT_compress_debug_sections_EQ)) { 1046 if (A->getOption().getID() == OPT_compress_debug_sections) { 1047 // TODO: be more clever about the compression type auto-detection 1048 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1049 } else { 1050 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1051 .Case("none", llvm::DebugCompressionType::None) 1052 .Case("zlib", llvm::DebugCompressionType::Z) 1053 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1054 .Default(llvm::DebugCompressionType::None); 1055 Opts.setCompressDebugSections(DCT); 1056 } 1057 } 1058 1059 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1060 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1061 for (auto *A : 1062 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1063 CodeGenOptions::BitcodeFileToLink F; 1064 F.Filename = A->getValue(); 1065 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1066 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1067 // When linking CUDA bitcode, propagate function attributes so that 1068 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1069 F.PropagateAttrs = true; 1070 F.Internalize = true; 1071 } 1072 Opts.LinkBitcodeFiles.push_back(F); 1073 } 1074 Opts.SanitizeCoverageType = 1075 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1076 Opts.SanitizeCoverageIndirectCalls = 1077 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1078 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1079 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1080 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1081 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1082 Opts.SanitizeCoverage8bitCounters = 1083 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1084 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1085 Opts.SanitizeCoverageTracePCGuard = 1086 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1087 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1088 Opts.SanitizeCoverageInline8bitCounters = 1089 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1090 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1091 Opts.SanitizeCoverageStackDepth = 1092 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1093 Opts.SanitizeMemoryTrackOrigins = 1094 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1095 Opts.SanitizeMemoryUseAfterDtor = 1096 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1097 OPT_fno_sanitize_memory_use_after_dtor, 1098 false); 1099 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1100 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1101 Opts.SanitizeCfiICallGeneralizePointers = 1102 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1103 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1104 if (Arg *A = Args.getLastArg( 1105 OPT_fsanitize_address_poison_custom_array_cookie, 1106 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1107 Opts.SanitizeAddressPoisonCustomArrayCookie = 1108 A->getOption().getID() == 1109 OPT_fsanitize_address_poison_custom_array_cookie; 1110 } 1111 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1112 OPT_fno_sanitize_address_use_after_scope)) { 1113 Opts.SanitizeAddressUseAfterScope = 1114 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1115 } 1116 Opts.SanitizeAddressGlobalsDeadStripping = 1117 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1118 Opts.SSPBufferSize = 1119 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1120 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1121 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1122 StringRef Val = A->getValue(); 1123 unsigned StackAlignment = Opts.StackAlignment; 1124 Val.getAsInteger(10, StackAlignment); 1125 Opts.StackAlignment = StackAlignment; 1126 } 1127 1128 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1129 StringRef Val = A->getValue(); 1130 unsigned StackProbeSize = Opts.StackProbeSize; 1131 Val.getAsInteger(0, StackProbeSize); 1132 Opts.StackProbeSize = StackProbeSize; 1133 } 1134 1135 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1136 1137 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1138 StringRef Name = A->getValue(); 1139 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1140 .Case("legacy", CodeGenOptions::Legacy) 1141 .Case("non-legacy", CodeGenOptions::NonLegacy) 1142 .Case("mixed", CodeGenOptions::Mixed) 1143 .Default(~0U); 1144 if (Method == ~0U) { 1145 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1146 Success = false; 1147 } else { 1148 Opts.setObjCDispatchMethod( 1149 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1150 } 1151 } 1152 1153 if (Args.getLastArg(OPT_femulated_tls) || 1154 Args.getLastArg(OPT_fno_emulated_tls)) { 1155 Opts.ExplicitEmulatedTLS = true; 1156 Opts.EmulatedTLS = 1157 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1158 } 1159 1160 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1161 StringRef Name = A->getValue(); 1162 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1163 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1164 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1165 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1166 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1167 .Default(~0U); 1168 if (Model == ~0U) { 1169 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1170 Success = false; 1171 } else { 1172 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1173 } 1174 } 1175 1176 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1177 StringRef Val = A->getValue(); 1178 if (Val == "ieee") 1179 Opts.FPDenormalMode = "ieee"; 1180 else if (Val == "preserve-sign") 1181 Opts.FPDenormalMode = "preserve-sign"; 1182 else if (Val == "positive-zero") 1183 Opts.FPDenormalMode = "positive-zero"; 1184 else 1185 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1186 } 1187 1188 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1189 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1190 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1191 } else { 1192 assert(A->getOption().matches(OPT_freg_struct_return)); 1193 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1194 } 1195 } 1196 1197 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1198 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1199 bool NeedLocTracking = false; 1200 1201 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 1202 if (!Opts.OptRecordFile.empty()) 1203 NeedLocTracking = true; 1204 1205 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1206 Opts.OptimizationRemarkPattern = 1207 GenerateOptimizationRemarkRegex(Diags, Args, A); 1208 NeedLocTracking = true; 1209 } 1210 1211 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1212 Opts.OptimizationRemarkMissedPattern = 1213 GenerateOptimizationRemarkRegex(Diags, Args, A); 1214 NeedLocTracking = true; 1215 } 1216 1217 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1218 Opts.OptimizationRemarkAnalysisPattern = 1219 GenerateOptimizationRemarkRegex(Diags, Args, A); 1220 NeedLocTracking = true; 1221 } 1222 1223 Opts.DiagnosticsWithHotness = 1224 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1225 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1226 bool UsingProfile = UsingSampleProfile || 1227 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1228 1229 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1230 // An IR file will contain PGO as metadata 1231 IK.getLanguage() != InputKind::LLVM_IR) 1232 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1233 << "-fdiagnostics-show-hotness"; 1234 1235 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1236 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1237 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1238 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1239 << "-fdiagnostics-hotness-threshold="; 1240 1241 // If the user requested to use a sample profile for PGO, then the 1242 // backend will need to track source location information so the profile 1243 // can be incorporated into the IR. 1244 if (UsingSampleProfile) 1245 NeedLocTracking = true; 1246 1247 // If the user requested a flag that requires source locations available in 1248 // the backend, make sure that the backend tracks source location information. 1249 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1250 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1251 1252 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1253 1254 // Parse -fsanitize-recover= arguments. 1255 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1256 parseSanitizerKinds("-fsanitize-recover=", 1257 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1258 Opts.SanitizeRecover); 1259 parseSanitizerKinds("-fsanitize-trap=", 1260 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1261 Opts.SanitizeTrap); 1262 1263 Opts.CudaGpuBinaryFileName = 1264 Args.getLastArgValue(OPT_fcuda_include_gpubinary); 1265 1266 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1267 1268 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1269 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1270 1271 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1272 1273 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1274 1275 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1276 StringRef SignScope = A->getValue(); 1277 1278 if (SignScope.equals_lower("none")) 1279 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1280 else if (SignScope.equals_lower("all")) 1281 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1282 else if (SignScope.equals_lower("non-leaf")) 1283 Opts.setSignReturnAddress( 1284 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1285 else 1286 Diags.Report(diag::err_drv_invalid_value) 1287 << A->getAsString(Args) << SignScope; 1288 1289 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1290 StringRef SignKey = A->getValue(); 1291 if (!SignScope.empty() && !SignKey.empty()) { 1292 if (SignKey.equals_lower("a_key")) 1293 Opts.setSignReturnAddressKey( 1294 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1295 else if (SignKey.equals_lower("b_key")) 1296 Opts.setSignReturnAddressKey( 1297 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1298 else 1299 Diags.Report(diag::err_drv_invalid_value) 1300 << A->getAsString(Args) << SignKey; 1301 } 1302 } 1303 } 1304 1305 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1306 1307 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1308 1309 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1310 1311 return Success; 1312 } 1313 1314 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1315 ArgList &Args) { 1316 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1317 Opts.Targets = Args.getAllArgValues(OPT_MT); 1318 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1319 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1320 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1321 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1322 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1323 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1324 if (Args.hasArg(OPT_show_includes)) { 1325 // Writing both /showIncludes and preprocessor output to stdout 1326 // would produce interleaved output, so use stderr for /showIncludes. 1327 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1328 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1329 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1330 else 1331 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1332 } else { 1333 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1334 } 1335 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1336 Opts.ModuleDependencyOutputDir = 1337 Args.getLastArgValue(OPT_module_dependency_dir); 1338 if (Args.hasArg(OPT_MV)) 1339 Opts.OutputFormat = DependencyOutputFormat::NMake; 1340 // Add sanitizer blacklists as extra dependencies. 1341 // They won't be discovered by the regular preprocessor, so 1342 // we let make / ninja to know about this implicit dependency. 1343 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1344 // Only the -fmodule-file=<file> form. 1345 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1346 StringRef Val = A->getValue(); 1347 if (Val.find('=') == StringRef::npos) 1348 Opts.ExtraDeps.push_back(Val); 1349 } 1350 } 1351 1352 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1353 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1354 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1355 // Support both clang's -f[no-]color-diagnostics and gcc's 1356 // -f[no-]diagnostics-colors[=never|always|auto]. 1357 enum { 1358 Colors_On, 1359 Colors_Off, 1360 Colors_Auto 1361 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1362 for (auto *A : Args) { 1363 const Option &O = A->getOption(); 1364 if (O.matches(options::OPT_fcolor_diagnostics) || 1365 O.matches(options::OPT_fdiagnostics_color)) { 1366 ShowColors = Colors_On; 1367 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1368 O.matches(options::OPT_fno_diagnostics_color)) { 1369 ShowColors = Colors_Off; 1370 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1371 StringRef Value(A->getValue()); 1372 if (Value == "always") 1373 ShowColors = Colors_On; 1374 else if (Value == "never") 1375 ShowColors = Colors_Off; 1376 else if (Value == "auto") 1377 ShowColors = Colors_Auto; 1378 } 1379 } 1380 return ShowColors == Colors_On || 1381 (ShowColors == Colors_Auto && 1382 llvm::sys::Process::StandardErrHasColors()); 1383 } 1384 1385 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1386 DiagnosticsEngine *Diags) { 1387 bool Success = true; 1388 for (const auto &Prefix : VerifyPrefixes) { 1389 // Every prefix must start with a letter and contain only alphanumeric 1390 // characters, hyphens, and underscores. 1391 auto BadChar = std::find_if(Prefix.begin(), Prefix.end(), 1392 [](char C){return !isAlphanumeric(C) 1393 && C != '-' && C != '_';}); 1394 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1395 Success = false; 1396 if (Diags) { 1397 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1398 Diags->Report(diag::note_drv_verify_prefix_spelling); 1399 } 1400 } 1401 } 1402 return Success; 1403 } 1404 1405 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1406 DiagnosticsEngine *Diags, 1407 bool DefaultDiagColor, bool DefaultShowOpt) { 1408 bool Success = true; 1409 1410 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1411 if (Arg *A = 1412 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1413 Opts.DiagnosticSerializationFile = A->getValue(); 1414 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1415 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1416 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1417 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1418 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1419 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1420 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1421 OPT_fno_show_column, 1422 /*Default=*/true); 1423 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1424 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1425 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1426 Opts.ShowOptionNames = 1427 Args.hasFlag(OPT_fdiagnostics_show_option, 1428 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1429 1430 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1431 1432 // Default behavior is to not to show note include stacks. 1433 Opts.ShowNoteIncludeStack = false; 1434 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1435 OPT_fno_diagnostics_show_note_include_stack)) 1436 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1437 Opts.ShowNoteIncludeStack = true; 1438 1439 StringRef ShowOverloads = 1440 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1441 if (ShowOverloads == "best") 1442 Opts.setShowOverloads(Ovl_Best); 1443 else if (ShowOverloads == "all") 1444 Opts.setShowOverloads(Ovl_All); 1445 else { 1446 Success = false; 1447 if (Diags) 1448 Diags->Report(diag::err_drv_invalid_value) 1449 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1450 << ShowOverloads; 1451 } 1452 1453 StringRef ShowCategory = 1454 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1455 if (ShowCategory == "none") 1456 Opts.ShowCategories = 0; 1457 else if (ShowCategory == "id") 1458 Opts.ShowCategories = 1; 1459 else if (ShowCategory == "name") 1460 Opts.ShowCategories = 2; 1461 else { 1462 Success = false; 1463 if (Diags) 1464 Diags->Report(diag::err_drv_invalid_value) 1465 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1466 << ShowCategory; 1467 } 1468 1469 StringRef Format = 1470 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1471 if (Format == "clang") 1472 Opts.setFormat(DiagnosticOptions::Clang); 1473 else if (Format == "msvc") 1474 Opts.setFormat(DiagnosticOptions::MSVC); 1475 else if (Format == "msvc-fallback") { 1476 Opts.setFormat(DiagnosticOptions::MSVC); 1477 Opts.CLFallbackMode = true; 1478 } else if (Format == "vi") 1479 Opts.setFormat(DiagnosticOptions::Vi); 1480 else { 1481 Success = false; 1482 if (Diags) 1483 Diags->Report(diag::err_drv_invalid_value) 1484 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1485 << Format; 1486 } 1487 1488 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1489 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1490 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1491 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1492 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1493 if (Args.hasArg(OPT_verify)) 1494 Opts.VerifyPrefixes.push_back("expected"); 1495 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1496 // then sort it to prepare for fast lookup using std::binary_search. 1497 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1498 Opts.VerifyDiagnostics = false; 1499 Success = false; 1500 } 1501 else 1502 llvm::sort(Opts.VerifyPrefixes); 1503 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1504 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1505 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1506 Diags, DiagMask); 1507 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1508 DiagMask = DiagnosticLevelMask::All; 1509 Opts.setVerifyIgnoreUnexpected(DiagMask); 1510 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1511 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1512 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1513 Opts.MacroBacktraceLimit = 1514 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1515 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1516 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1517 Args, OPT_ftemplate_backtrace_limit, 1518 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1519 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1520 Args, OPT_fconstexpr_backtrace_limit, 1521 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1522 Opts.SpellCheckingLimit = getLastArgIntValue( 1523 Args, OPT_fspell_checking_limit, 1524 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1525 Opts.SnippetLineLimit = getLastArgIntValue( 1526 Args, OPT_fcaret_diagnostics_max_lines, 1527 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1528 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1529 DiagnosticOptions::DefaultTabStop, Diags); 1530 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1531 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1532 if (Diags) 1533 Diags->Report(diag::warn_ignoring_ftabstop_value) 1534 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1535 } 1536 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1537 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1538 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1539 1540 return Success; 1541 } 1542 1543 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1544 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1545 } 1546 1547 /// Parse the argument to the -ftest-module-file-extension 1548 /// command-line argument. 1549 /// 1550 /// \returns true on error, false on success. 1551 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1552 std::string &BlockName, 1553 unsigned &MajorVersion, 1554 unsigned &MinorVersion, 1555 bool &Hashed, 1556 std::string &UserInfo) { 1557 SmallVector<StringRef, 5> Args; 1558 Arg.split(Args, ':', 5); 1559 if (Args.size() < 5) 1560 return true; 1561 1562 BlockName = Args[0]; 1563 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1564 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1565 if (Args[3].getAsInteger(2, Hashed)) return true; 1566 if (Args.size() > 4) 1567 UserInfo = Args[4]; 1568 return false; 1569 } 1570 1571 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1572 DiagnosticsEngine &Diags, 1573 bool &IsHeaderFile) { 1574 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1575 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1576 switch (A->getOption().getID()) { 1577 default: 1578 llvm_unreachable("Invalid option in group!"); 1579 case OPT_ast_list: 1580 Opts.ProgramAction = frontend::ASTDeclList; break; 1581 case OPT_ast_dump: 1582 case OPT_ast_dump_all: 1583 case OPT_ast_dump_lookups: 1584 Opts.ProgramAction = frontend::ASTDump; break; 1585 case OPT_ast_print: 1586 Opts.ProgramAction = frontend::ASTPrint; break; 1587 case OPT_ast_view: 1588 Opts.ProgramAction = frontend::ASTView; break; 1589 case OPT_compiler_options_dump: 1590 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1591 case OPT_dump_raw_tokens: 1592 Opts.ProgramAction = frontend::DumpRawTokens; break; 1593 case OPT_dump_tokens: 1594 Opts.ProgramAction = frontend::DumpTokens; break; 1595 case OPT_S: 1596 Opts.ProgramAction = frontend::EmitAssembly; break; 1597 case OPT_emit_llvm_bc: 1598 Opts.ProgramAction = frontend::EmitBC; break; 1599 case OPT_emit_html: 1600 Opts.ProgramAction = frontend::EmitHTML; break; 1601 case OPT_emit_llvm: 1602 Opts.ProgramAction = frontend::EmitLLVM; break; 1603 case OPT_emit_llvm_only: 1604 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1605 case OPT_emit_codegen_only: 1606 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1607 case OPT_emit_obj: 1608 Opts.ProgramAction = frontend::EmitObj; break; 1609 case OPT_fixit_EQ: 1610 Opts.FixItSuffix = A->getValue(); 1611 LLVM_FALLTHROUGH; 1612 case OPT_fixit: 1613 Opts.ProgramAction = frontend::FixIt; break; 1614 case OPT_emit_module: 1615 Opts.ProgramAction = frontend::GenerateModule; break; 1616 case OPT_emit_module_interface: 1617 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1618 case OPT_emit_header_module: 1619 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1620 case OPT_emit_pch: 1621 Opts.ProgramAction = frontend::GeneratePCH; break; 1622 case OPT_init_only: 1623 Opts.ProgramAction = frontend::InitOnly; break; 1624 case OPT_fsyntax_only: 1625 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1626 case OPT_module_file_info: 1627 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1628 case OPT_verify_pch: 1629 Opts.ProgramAction = frontend::VerifyPCH; break; 1630 case OPT_print_preamble: 1631 Opts.ProgramAction = frontend::PrintPreamble; break; 1632 case OPT_E: 1633 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1634 case OPT_templight_dump: 1635 Opts.ProgramAction = frontend::TemplightDump; break; 1636 case OPT_rewrite_macros: 1637 Opts.ProgramAction = frontend::RewriteMacros; break; 1638 case OPT_rewrite_objc: 1639 Opts.ProgramAction = frontend::RewriteObjC; break; 1640 case OPT_rewrite_test: 1641 Opts.ProgramAction = frontend::RewriteTest; break; 1642 case OPT_analyze: 1643 Opts.ProgramAction = frontend::RunAnalysis; break; 1644 case OPT_migrate: 1645 Opts.ProgramAction = frontend::MigrateSource; break; 1646 case OPT_Eonly: 1647 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1648 } 1649 } 1650 1651 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1652 Opts.Plugins.emplace_back(A->getValue(0)); 1653 Opts.ProgramAction = frontend::PluginAction; 1654 Opts.ActionName = A->getValue(); 1655 } 1656 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1657 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1658 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1659 1660 for (const std::string &Arg : 1661 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1662 std::string BlockName; 1663 unsigned MajorVersion; 1664 unsigned MinorVersion; 1665 bool Hashed; 1666 std::string UserInfo; 1667 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1668 MinorVersion, Hashed, UserInfo)) { 1669 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1670 1671 continue; 1672 } 1673 1674 // Add the testing module file extension. 1675 Opts.ModuleFileExtensions.push_back( 1676 std::make_shared<TestModuleFileExtension>( 1677 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1678 } 1679 1680 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1681 Opts.CodeCompletionAt = 1682 ParsedSourceLocation::FromString(A->getValue()); 1683 if (Opts.CodeCompletionAt.FileName.empty()) 1684 Diags.Report(diag::err_drv_invalid_value) 1685 << A->getAsString(Args) << A->getValue(); 1686 } 1687 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1688 1689 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1690 Opts.Plugins = Args.getAllArgValues(OPT_load); 1691 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1692 Opts.ShowHelp = Args.hasArg(OPT_help); 1693 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1694 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1695 Opts.ShowVersion = Args.hasArg(OPT_version); 1696 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1697 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1698 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1699 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1700 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1701 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1702 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1703 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1704 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1705 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1706 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1707 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1708 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1709 // Only the -fmodule-file=<file> form. 1710 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1711 StringRef Val = A->getValue(); 1712 if (Val.find('=') == StringRef::npos) 1713 Opts.ModuleFiles.push_back(Val); 1714 } 1715 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1716 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1717 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1718 1719 Opts.CodeCompleteOpts.IncludeMacros 1720 = Args.hasArg(OPT_code_completion_macros); 1721 Opts.CodeCompleteOpts.IncludeCodePatterns 1722 = Args.hasArg(OPT_code_completion_patterns); 1723 Opts.CodeCompleteOpts.IncludeGlobals 1724 = !Args.hasArg(OPT_no_code_completion_globals); 1725 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1726 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1727 Opts.CodeCompleteOpts.IncludeBriefComments 1728 = Args.hasArg(OPT_code_completion_brief_comments); 1729 Opts.CodeCompleteOpts.IncludeFixIts 1730 = Args.hasArg(OPT_code_completion_with_fixits); 1731 1732 Opts.OverrideRecordLayoutsFile 1733 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1734 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple); 1735 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1736 1737 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1738 OPT_arcmt_modify, 1739 OPT_arcmt_migrate)) { 1740 switch (A->getOption().getID()) { 1741 default: 1742 llvm_unreachable("missed a case"); 1743 case OPT_arcmt_check: 1744 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1745 break; 1746 case OPT_arcmt_modify: 1747 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1748 break; 1749 case OPT_arcmt_migrate: 1750 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1751 break; 1752 } 1753 } 1754 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1755 Opts.ARCMTMigrateReportOut 1756 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1757 Opts.ARCMTMigrateEmitARCErrors 1758 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1759 1760 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1761 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1762 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1763 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1764 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1765 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1766 if (Args.hasArg(OPT_objcmt_migrate_property)) 1767 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1768 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1769 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1770 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1771 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1772 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1773 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1774 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1775 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1776 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1777 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1778 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1779 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1780 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1781 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1782 if (Args.hasArg(OPT_objcmt_atomic_property)) 1783 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1784 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1785 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1786 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1787 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1788 if (Args.hasArg(OPT_objcmt_migrate_all)) 1789 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1790 1791 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1792 1793 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1794 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1795 Diags.Report(diag::err_drv_argument_not_allowed_with) 1796 << "ARC migration" << "ObjC migration"; 1797 } 1798 1799 InputKind DashX(InputKind::Unknown); 1800 if (const Arg *A = Args.getLastArg(OPT_x)) { 1801 StringRef XValue = A->getValue(); 1802 1803 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1804 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1805 bool Preprocessed = XValue.consume_back("-cpp-output"); 1806 bool ModuleMap = XValue.consume_back("-module-map"); 1807 IsHeaderFile = 1808 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1809 1810 // Principal languages. 1811 DashX = llvm::StringSwitch<InputKind>(XValue) 1812 .Case("c", InputKind::C) 1813 .Case("cl", InputKind::OpenCL) 1814 .Case("cuda", InputKind::CUDA) 1815 .Case("hip", InputKind::HIP) 1816 .Case("c++", InputKind::CXX) 1817 .Case("objective-c", InputKind::ObjC) 1818 .Case("objective-c++", InputKind::ObjCXX) 1819 .Case("renderscript", InputKind::RenderScript) 1820 .Default(InputKind::Unknown); 1821 1822 // "objc[++]-cpp-output" is an acceptable synonym for 1823 // "objective-c[++]-cpp-output". 1824 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1825 DashX = llvm::StringSwitch<InputKind>(XValue) 1826 .Case("objc", InputKind::ObjC) 1827 .Case("objc++", InputKind::ObjCXX) 1828 .Default(InputKind::Unknown); 1829 1830 // Some special cases cannot be combined with suffixes. 1831 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1832 DashX = llvm::StringSwitch<InputKind>(XValue) 1833 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1834 .Case("assembler-with-cpp", InputKind::Asm) 1835 .Cases("ast", "pcm", 1836 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1837 .Case("ir", InputKind::LLVM_IR) 1838 .Default(InputKind::Unknown); 1839 1840 if (DashX.isUnknown()) 1841 Diags.Report(diag::err_drv_invalid_value) 1842 << A->getAsString(Args) << A->getValue(); 1843 1844 if (Preprocessed) 1845 DashX = DashX.getPreprocessed(); 1846 if (ModuleMap) 1847 DashX = DashX.withFormat(InputKind::ModuleMap); 1848 } 1849 1850 // '-' is the default input if none is given. 1851 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1852 Opts.Inputs.clear(); 1853 if (Inputs.empty()) 1854 Inputs.push_back("-"); 1855 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1856 InputKind IK = DashX; 1857 if (IK.isUnknown()) { 1858 IK = FrontendOptions::getInputKindForExtension( 1859 StringRef(Inputs[i]).rsplit('.').second); 1860 // FIXME: Warn on this? 1861 if (IK.isUnknown()) 1862 IK = InputKind::C; 1863 // FIXME: Remove this hack. 1864 if (i == 0) 1865 DashX = IK; 1866 } 1867 1868 // The -emit-module action implicitly takes a module map. 1869 if (Opts.ProgramAction == frontend::GenerateModule && 1870 IK.getFormat() == InputKind::Source) 1871 IK = IK.withFormat(InputKind::ModuleMap); 1872 1873 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1874 } 1875 1876 return DashX; 1877 } 1878 1879 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1880 void *MainAddr) { 1881 std::string ClangExecutable = 1882 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1883 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1884 1885 // Compute the path to the resource directory. 1886 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1887 SmallString<128> P(Dir); 1888 if (ClangResourceDir != "") 1889 llvm::sys::path::append(P, ClangResourceDir); 1890 else 1891 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1892 "clang", CLANG_VERSION_STRING); 1893 1894 return P.str(); 1895 } 1896 1897 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1898 const std::string &WorkingDir) { 1899 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1900 Opts.Verbose = Args.hasArg(OPT_v); 1901 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1902 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1903 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1904 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1905 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1906 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1907 1908 // Canonicalize -fmodules-cache-path before storing it. 1909 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1910 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1911 if (WorkingDir.empty()) 1912 llvm::sys::fs::make_absolute(P); 1913 else 1914 llvm::sys::fs::make_absolute(WorkingDir, P); 1915 } 1916 llvm::sys::path::remove_dots(P); 1917 Opts.ModuleCachePath = P.str(); 1918 1919 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1920 // Only the -fmodule-file=<name>=<file> form. 1921 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1922 StringRef Val = A->getValue(); 1923 if (Val.find('=') != StringRef::npos) 1924 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1925 } 1926 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 1927 Opts.AddPrebuiltModulePath(A->getValue()); 1928 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1929 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1930 Opts.ModulesValidateDiagnosticOptions = 1931 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1932 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1933 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1934 Opts.ModuleCachePruneInterval = 1935 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1936 Opts.ModuleCachePruneAfter = 1937 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1938 Opts.ModulesValidateOncePerBuildSession = 1939 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1940 Opts.BuildSessionTimestamp = 1941 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1942 Opts.ModulesValidateSystemHeaders = 1943 Args.hasArg(OPT_fmodules_validate_system_headers); 1944 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1945 Opts.ModuleFormat = A->getValue(); 1946 1947 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1948 StringRef MacroDef = A->getValue(); 1949 Opts.ModulesIgnoreMacros.insert( 1950 llvm::CachedHashString(MacroDef.split('=').first)); 1951 } 1952 1953 // Add -I..., -F..., and -index-header-map options in order. 1954 bool IsIndexHeaderMap = false; 1955 bool IsSysrootSpecified = 1956 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1957 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1958 if (A->getOption().matches(OPT_index_header_map)) { 1959 // -index-header-map applies to the next -I or -F. 1960 IsIndexHeaderMap = true; 1961 continue; 1962 } 1963 1964 frontend::IncludeDirGroup Group = 1965 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1966 1967 bool IsFramework = A->getOption().matches(OPT_F); 1968 std::string Path = A->getValue(); 1969 1970 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1971 SmallString<32> Buffer; 1972 llvm::sys::path::append(Buffer, Opts.Sysroot, 1973 llvm::StringRef(A->getValue()).substr(1)); 1974 Path = Buffer.str(); 1975 } 1976 1977 Opts.AddPath(Path, Group, IsFramework, 1978 /*IgnoreSysroot*/ true); 1979 IsIndexHeaderMap = false; 1980 } 1981 1982 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1983 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1984 for (const auto *A : 1985 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1986 if (A->getOption().matches(OPT_iprefix)) 1987 Prefix = A->getValue(); 1988 else if (A->getOption().matches(OPT_iwithprefix)) 1989 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1990 else 1991 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1992 } 1993 1994 for (const auto *A : Args.filtered(OPT_idirafter)) 1995 Opts.AddPath(A->getValue(), frontend::After, false, true); 1996 for (const auto *A : Args.filtered(OPT_iquote)) 1997 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1998 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1999 Opts.AddPath(A->getValue(), frontend::System, false, 2000 !A->getOption().matches(OPT_iwithsysroot)); 2001 for (const auto *A : Args.filtered(OPT_iframework)) 2002 Opts.AddPath(A->getValue(), frontend::System, true, true); 2003 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2004 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2005 /*IgnoreSysRoot=*/false); 2006 2007 // Add the paths for the various language specific isystem flags. 2008 for (const auto *A : Args.filtered(OPT_c_isystem)) 2009 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2010 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2011 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2012 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2013 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2014 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2015 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2016 2017 // Add the internal paths from a driver that detects standard include paths. 2018 for (const auto *A : 2019 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2020 frontend::IncludeDirGroup Group = frontend::System; 2021 if (A->getOption().matches(OPT_internal_externc_isystem)) 2022 Group = frontend::ExternCSystem; 2023 Opts.AddPath(A->getValue(), Group, false, true); 2024 } 2025 2026 // Add the path prefixes which are implicitly treated as being system headers. 2027 for (const auto *A : 2028 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2029 Opts.AddSystemHeaderPrefix( 2030 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2031 2032 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2033 Opts.AddVFSOverlayFile(A->getValue()); 2034 } 2035 2036 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2037 const llvm::Triple &T, 2038 PreprocessorOptions &PPOpts, 2039 LangStandard::Kind LangStd) { 2040 // Set some properties which depend solely on the input kind; it would be nice 2041 // to move these to the language standard, and have the driver resolve the 2042 // input kind + language standard. 2043 // 2044 // FIXME: Perhaps a better model would be for a single source file to have 2045 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2046 // simultaneously active? 2047 if (IK.getLanguage() == InputKind::Asm) { 2048 Opts.AsmPreprocessor = 1; 2049 } else if (IK.isObjectiveC()) { 2050 Opts.ObjC = 1; 2051 } 2052 2053 if (LangStd == LangStandard::lang_unspecified) { 2054 // Based on the base language, pick one. 2055 switch (IK.getLanguage()) { 2056 case InputKind::Unknown: 2057 case InputKind::LLVM_IR: 2058 llvm_unreachable("Invalid input kind!"); 2059 case InputKind::OpenCL: 2060 LangStd = LangStandard::lang_opencl10; 2061 break; 2062 case InputKind::CUDA: 2063 LangStd = LangStandard::lang_cuda; 2064 break; 2065 case InputKind::Asm: 2066 case InputKind::C: 2067 #if defined(CLANG_DEFAULT_STD_C) 2068 LangStd = CLANG_DEFAULT_STD_C; 2069 #else 2070 // The PS4 uses C99 as the default C standard. 2071 if (T.isPS4()) 2072 LangStd = LangStandard::lang_gnu99; 2073 else 2074 LangStd = LangStandard::lang_gnu11; 2075 #endif 2076 break; 2077 case InputKind::ObjC: 2078 #if defined(CLANG_DEFAULT_STD_C) 2079 LangStd = CLANG_DEFAULT_STD_C; 2080 #else 2081 LangStd = LangStandard::lang_gnu11; 2082 #endif 2083 break; 2084 case InputKind::CXX: 2085 case InputKind::ObjCXX: 2086 #if defined(CLANG_DEFAULT_STD_CXX) 2087 LangStd = CLANG_DEFAULT_STD_CXX; 2088 #else 2089 LangStd = LangStandard::lang_gnucxx14; 2090 #endif 2091 break; 2092 case InputKind::RenderScript: 2093 LangStd = LangStandard::lang_c99; 2094 break; 2095 case InputKind::HIP: 2096 LangStd = LangStandard::lang_hip; 2097 break; 2098 } 2099 } 2100 2101 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2102 Opts.LineComment = Std.hasLineComments(); 2103 Opts.C99 = Std.isC99(); 2104 Opts.C11 = Std.isC11(); 2105 Opts.C17 = Std.isC17(); 2106 Opts.CPlusPlus = Std.isCPlusPlus(); 2107 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2108 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2109 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2110 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2111 Opts.Digraphs = Std.hasDigraphs(); 2112 Opts.GNUMode = Std.isGNUMode(); 2113 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2114 Opts.HexFloats = Std.hasHexFloats(); 2115 Opts.ImplicitInt = Std.hasImplicitInt(); 2116 2117 // Set OpenCL Version. 2118 Opts.OpenCL = Std.isOpenCL(); 2119 if (LangStd == LangStandard::lang_opencl10) 2120 Opts.OpenCLVersion = 100; 2121 else if (LangStd == LangStandard::lang_opencl11) 2122 Opts.OpenCLVersion = 110; 2123 else if (LangStd == LangStandard::lang_opencl12) 2124 Opts.OpenCLVersion = 120; 2125 else if (LangStd == LangStandard::lang_opencl20) 2126 Opts.OpenCLVersion = 200; 2127 else if (LangStd == LangStandard::lang_openclcpp) 2128 Opts.OpenCLCPlusPlusVersion = 100; 2129 2130 // OpenCL has some additional defaults. 2131 if (Opts.OpenCL) { 2132 Opts.AltiVec = 0; 2133 Opts.ZVector = 0; 2134 Opts.LaxVectorConversions = 0; 2135 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2136 Opts.NativeHalfType = 1; 2137 Opts.NativeHalfArgsAndReturns = 1; 2138 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2139 // Include default header file for OpenCL. 2140 if (Opts.IncludeDefaultHeader) { 2141 PPOpts.Includes.push_back("opencl-c.h"); 2142 } 2143 } 2144 2145 Opts.HIP = IK.getLanguage() == InputKind::HIP; 2146 Opts.CUDA = IK.getLanguage() == InputKind::CUDA || Opts.HIP; 2147 if (Opts.CUDA) 2148 // Set default FP_CONTRACT to FAST. 2149 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2150 2151 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 2152 if (Opts.RenderScript) { 2153 Opts.NativeHalfType = 1; 2154 Opts.NativeHalfArgsAndReturns = 1; 2155 } 2156 2157 // OpenCL and C++ both have bool, true, false keywords. 2158 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2159 2160 // OpenCL has half keyword 2161 Opts.Half = Opts.OpenCL; 2162 2163 // C++ has wchar_t keyword. 2164 Opts.WChar = Opts.CPlusPlus; 2165 2166 Opts.GNUKeywords = Opts.GNUMode; 2167 Opts.CXXOperatorNames = Opts.CPlusPlus; 2168 2169 Opts.AlignedAllocation = Opts.CPlusPlus17; 2170 2171 Opts.DollarIdents = !Opts.AsmPreprocessor; 2172 } 2173 2174 /// Attempt to parse a visibility value out of the given argument. 2175 static Visibility parseVisibility(Arg *arg, ArgList &args, 2176 DiagnosticsEngine &diags) { 2177 StringRef value = arg->getValue(); 2178 if (value == "default") { 2179 return DefaultVisibility; 2180 } else if (value == "hidden" || value == "internal") { 2181 return HiddenVisibility; 2182 } else if (value == "protected") { 2183 // FIXME: diagnose if target does not support protected visibility 2184 return ProtectedVisibility; 2185 } 2186 2187 diags.Report(diag::err_drv_invalid_value) 2188 << arg->getAsString(args) << value; 2189 return DefaultVisibility; 2190 } 2191 2192 /// Check if input file kind and language standard are compatible. 2193 static bool IsInputCompatibleWithStandard(InputKind IK, 2194 const LangStandard &S) { 2195 switch (IK.getLanguage()) { 2196 case InputKind::Unknown: 2197 case InputKind::LLVM_IR: 2198 llvm_unreachable("should not parse language flags for this input"); 2199 2200 case InputKind::C: 2201 case InputKind::ObjC: 2202 case InputKind::RenderScript: 2203 return S.getLanguage() == InputKind::C; 2204 2205 case InputKind::OpenCL: 2206 return S.getLanguage() == InputKind::OpenCL; 2207 2208 case InputKind::CXX: 2209 case InputKind::ObjCXX: 2210 return S.getLanguage() == InputKind::CXX; 2211 2212 case InputKind::CUDA: 2213 // FIXME: What -std= values should be permitted for CUDA compilations? 2214 return S.getLanguage() == InputKind::CUDA || 2215 S.getLanguage() == InputKind::CXX; 2216 2217 case InputKind::HIP: 2218 return S.getLanguage() == InputKind::CXX || 2219 S.getLanguage() == InputKind::HIP; 2220 2221 case InputKind::Asm: 2222 // Accept (and ignore) all -std= values. 2223 // FIXME: The -std= value is not ignored; it affects the tokenization 2224 // and preprocessing rules if we're preprocessing this asm input. 2225 return true; 2226 } 2227 2228 llvm_unreachable("unexpected input language"); 2229 } 2230 2231 /// Get language name for given input kind. 2232 static const StringRef GetInputKindName(InputKind IK) { 2233 switch (IK.getLanguage()) { 2234 case InputKind::C: 2235 return "C"; 2236 case InputKind::ObjC: 2237 return "Objective-C"; 2238 case InputKind::CXX: 2239 return "C++"; 2240 case InputKind::ObjCXX: 2241 return "Objective-C++"; 2242 case InputKind::OpenCL: 2243 return "OpenCL"; 2244 case InputKind::CUDA: 2245 return "CUDA"; 2246 case InputKind::RenderScript: 2247 return "RenderScript"; 2248 case InputKind::HIP: 2249 return "HIP"; 2250 2251 case InputKind::Asm: 2252 return "Asm"; 2253 case InputKind::LLVM_IR: 2254 return "LLVM IR"; 2255 2256 case InputKind::Unknown: 2257 break; 2258 } 2259 llvm_unreachable("unknown input language"); 2260 } 2261 2262 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2263 const TargetOptions &TargetOpts, 2264 PreprocessorOptions &PPOpts, 2265 DiagnosticsEngine &Diags) { 2266 // FIXME: Cleanup per-file based stuff. 2267 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2268 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2269 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2270 #define LANGSTANDARD(id, name, lang, desc, features) \ 2271 .Case(name, LangStandard::lang_##id) 2272 #define LANGSTANDARD_ALIAS(id, alias) \ 2273 .Case(alias, LangStandard::lang_##id) 2274 #include "clang/Frontend/LangStandards.def" 2275 .Default(LangStandard::lang_unspecified); 2276 if (LangStd == LangStandard::lang_unspecified) { 2277 Diags.Report(diag::err_drv_invalid_value) 2278 << A->getAsString(Args) << A->getValue(); 2279 // Report supported standards with short description. 2280 for (unsigned KindValue = 0; 2281 KindValue != LangStandard::lang_unspecified; 2282 ++KindValue) { 2283 const LangStandard &Std = LangStandard::getLangStandardForKind( 2284 static_cast<LangStandard::Kind>(KindValue)); 2285 if (IsInputCompatibleWithStandard(IK, Std)) { 2286 auto Diag = Diags.Report(diag::note_drv_use_standard); 2287 Diag << Std.getName() << Std.getDescription(); 2288 unsigned NumAliases = 0; 2289 #define LANGSTANDARD(id, name, lang, desc, features) 2290 #define LANGSTANDARD_ALIAS(id, alias) \ 2291 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2292 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2293 #include "clang/Frontend/LangStandards.def" 2294 Diag << NumAliases; 2295 #define LANGSTANDARD(id, name, lang, desc, features) 2296 #define LANGSTANDARD_ALIAS(id, alias) \ 2297 if (KindValue == LangStandard::lang_##id) Diag << alias; 2298 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2299 #include "clang/Frontend/LangStandards.def" 2300 } 2301 } 2302 } else { 2303 // Valid standard, check to make sure language and standard are 2304 // compatible. 2305 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2306 if (!IsInputCompatibleWithStandard(IK, Std)) { 2307 Diags.Report(diag::err_drv_argument_not_allowed_with) 2308 << A->getAsString(Args) << GetInputKindName(IK); 2309 } 2310 } 2311 } 2312 2313 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2314 Opts.DllExportInlines = false; 2315 2316 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2317 StringRef Name = A->getValue(); 2318 if (Name == "full" || Name == "branch") { 2319 Opts.CFProtectionBranch = 1; 2320 } 2321 } 2322 // -cl-std only applies for OpenCL language standards. 2323 // Override the -std option in this case. 2324 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2325 LangStandard::Kind OpenCLLangStd 2326 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2327 .Cases("cl", "CL", LangStandard::lang_opencl10) 2328 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2329 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2330 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2331 .Case("c++", LangStandard::lang_openclcpp) 2332 .Default(LangStandard::lang_unspecified); 2333 2334 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2335 Diags.Report(diag::err_drv_invalid_value) 2336 << A->getAsString(Args) << A->getValue(); 2337 } 2338 else 2339 LangStd = OpenCLLangStd; 2340 } 2341 2342 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2343 2344 llvm::Triple T(TargetOpts.Triple); 2345 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2346 2347 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2348 // This option should be deprecated for CL > 1.0 because 2349 // this option was added for compatibility with OpenCL 1.0. 2350 if (Args.getLastArg(OPT_cl_strict_aliasing) 2351 && Opts.OpenCLVersion > 100) { 2352 Diags.Report(diag::warn_option_invalid_ocl_version) 2353 << Opts.getOpenCLVersionTuple().getAsString() 2354 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2355 } 2356 2357 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2358 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2359 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2360 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2361 // name, as it doesn't seem a useful distinction. 2362 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2363 Opts.GNUKeywords); 2364 2365 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2366 2367 if (Args.hasArg(OPT_fno_operator_names)) 2368 Opts.CXXOperatorNames = 0; 2369 2370 if (Args.hasArg(OPT_fcuda_is_device)) 2371 Opts.CUDAIsDevice = 1; 2372 2373 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2374 Opts.CUDAAllowVariadicFunctions = 1; 2375 2376 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2377 Opts.CUDAHostDeviceConstexpr = 0; 2378 2379 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2380 Opts.CUDADeviceApproxTranscendentals = 1; 2381 2382 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2383 2384 if (Opts.ObjC) { 2385 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2386 StringRef value = arg->getValue(); 2387 if (Opts.ObjCRuntime.tryParse(value)) 2388 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2389 } 2390 2391 if (Args.hasArg(OPT_fobjc_gc_only)) 2392 Opts.setGC(LangOptions::GCOnly); 2393 else if (Args.hasArg(OPT_fobjc_gc)) 2394 Opts.setGC(LangOptions::HybridGC); 2395 else if (Args.hasArg(OPT_fobjc_arc)) { 2396 Opts.ObjCAutoRefCount = 1; 2397 if (!Opts.ObjCRuntime.allowsARC()) 2398 Diags.Report(diag::err_arc_unsupported_on_runtime); 2399 } 2400 2401 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2402 // whether the feature is actually enabled. This is predominantly 2403 // determined by -fobjc-runtime, but we allow it to be overridden 2404 // from the command line for testing purposes. 2405 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2406 Opts.ObjCWeakRuntime = 1; 2407 else 2408 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2409 2410 // ObjCWeak determines whether __weak is actually enabled. 2411 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2412 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2413 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2414 assert(!Opts.ObjCWeak); 2415 } else if (Opts.getGC() != LangOptions::NonGC) { 2416 Diags.Report(diag::err_objc_weak_with_gc); 2417 } else if (!Opts.ObjCWeakRuntime) { 2418 Diags.Report(diag::err_objc_weak_unsupported); 2419 } else { 2420 Opts.ObjCWeak = 1; 2421 } 2422 } else if (Opts.ObjCAutoRefCount) { 2423 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2424 } 2425 2426 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2427 Opts.ObjCInferRelatedResultType = 0; 2428 2429 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2430 Opts.ObjCSubscriptingLegacyRuntime = 2431 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2432 } 2433 2434 if (Args.hasArg(OPT_fgnu89_inline)) { 2435 if (Opts.CPlusPlus) 2436 Diags.Report(diag::err_drv_argument_not_allowed_with) 2437 << "-fgnu89-inline" << GetInputKindName(IK); 2438 else 2439 Opts.GNUInline = 1; 2440 } 2441 2442 if (Args.hasArg(OPT_fapple_kext)) { 2443 if (!Opts.CPlusPlus) 2444 Diags.Report(diag::warn_c_kext); 2445 else 2446 Opts.AppleKext = 1; 2447 } 2448 2449 if (Args.hasArg(OPT_print_ivar_layout)) 2450 Opts.ObjCGCBitmapPrint = 1; 2451 2452 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2453 Opts.NoConstantCFStrings = 1; 2454 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2455 Opts.CFRuntime = 2456 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2457 .Cases("unspecified", "standalone", "objc", 2458 LangOptions::CoreFoundationABI::ObjectiveC) 2459 .Cases("swift", "swift-5.0", 2460 LangOptions::CoreFoundationABI::Swift5_0) 2461 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2462 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2463 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2464 2465 if (Args.hasArg(OPT_fzvector)) 2466 Opts.ZVector = 1; 2467 2468 if (Args.hasArg(OPT_pthread)) 2469 Opts.POSIXThreads = 1; 2470 2471 // The value-visibility mode defaults to "default". 2472 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2473 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2474 } else { 2475 Opts.setValueVisibilityMode(DefaultVisibility); 2476 } 2477 2478 // The type-visibility mode defaults to the value-visibility mode. 2479 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2480 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2481 } else { 2482 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2483 } 2484 2485 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2486 Opts.InlineVisibilityHidden = 1; 2487 2488 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2489 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2490 2491 if (Args.hasArg(OPT_ftrapv)) { 2492 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2493 // Set the handler, if one is specified. 2494 Opts.OverflowHandler = 2495 Args.getLastArgValue(OPT_ftrapv_handler); 2496 } 2497 else if (Args.hasArg(OPT_fwrapv)) 2498 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2499 2500 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2501 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2502 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2503 Opts.MSCompatibilityVersion = 0; 2504 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2505 VersionTuple VT; 2506 if (VT.tryParse(A->getValue())) 2507 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2508 << A->getValue(); 2509 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2510 VT.getMinor().getValueOr(0) * 100000 + 2511 VT.getSubminor().getValueOr(0); 2512 } 2513 2514 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 2515 // is specified, or -std is set to a conforming mode. 2516 // Trigraphs are disabled by default in c++1z onwards. 2517 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2518 Opts.Trigraphs = 2519 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2520 2521 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2522 OPT_fno_dollars_in_identifiers, 2523 Opts.DollarIdents); 2524 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2525 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2526 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2527 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2528 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2529 Opts.ConstStrings); 2530 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2531 Opts.LaxVectorConversions = 0; 2532 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2533 Opts.ThreadsafeStatics = 0; 2534 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2535 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2536 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2537 2538 // -ffixed-point 2539 Opts.FixedPoint = 2540 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2541 !Opts.CPlusPlus; 2542 Opts.PaddingOnUnsignedFixedPoint = 2543 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2544 OPT_fno_padding_on_unsigned_fixed_point, 2545 /*Default=*/false) && 2546 Opts.FixedPoint; 2547 2548 // Handle exception personalities 2549 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2550 options::OPT_fseh_exceptions, 2551 options::OPT_fdwarf_exceptions); 2552 if (A) { 2553 const Option &Opt = A->getOption(); 2554 llvm::Triple T(TargetOpts.Triple); 2555 if (T.isWindowsMSVCEnvironment()) 2556 Diags.Report(diag::err_fe_invalid_exception_model) 2557 << Opt.getName() << T.str(); 2558 2559 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2560 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2561 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2562 } 2563 2564 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2565 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2566 2567 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2568 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2569 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2570 && Opts.OpenCLVersion == 200); 2571 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2572 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2573 2574 // Enable [[]] attributes in C++11 by default. 2575 Opts.DoubleSquareBracketAttributes = 2576 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2577 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11); 2578 2579 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2580 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2581 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2582 Opts.ModulesDeclUse = 2583 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2584 Opts.ModulesLocalVisibility = 2585 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2586 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2587 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2588 Opts.ModulesSearchAll = Opts.Modules && 2589 !Args.hasArg(OPT_fno_modules_search_all) && 2590 Args.hasArg(OPT_fmodules_search_all); 2591 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2592 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2593 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2594 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2595 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2596 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2597 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2598 .Case("char", 1) 2599 .Case("short", 2) 2600 .Case("int", 4) 2601 .Default(0); 2602 if (Opts.WCharSize == 0) 2603 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2604 } 2605 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2606 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2607 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2608 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2609 if (!Opts.NoBuiltin) 2610 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2611 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2612 Opts.RelaxedTemplateTemplateArgs = 2613 Args.hasArg(OPT_frelaxed_template_template_args); 2614 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2615 Opts.AlignedAllocation = 2616 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2617 Opts.AlignedAllocation); 2618 Opts.AlignedAllocationUnavailable = 2619 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2620 Opts.NewAlignOverride = 2621 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2622 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2623 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2624 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2625 << A->getValue(); 2626 Opts.NewAlignOverride = 0; 2627 } 2628 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2629 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2630 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2631 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2632 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2633 Opts.InstantiationDepth = 2634 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2635 Opts.ArrowDepth = 2636 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2637 Opts.ConstexprCallDepth = 2638 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2639 Opts.ConstexprStepLimit = 2640 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2641 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2642 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2643 Opts.NumLargeByValueCopy = 2644 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2645 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2646 Opts.ObjCConstantStringClass = 2647 Args.getLastArgValue(OPT_fconstant_string_class); 2648 Opts.ObjCDefaultSynthProperties = 2649 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2650 Opts.EncodeExtendedBlockSig = 2651 Args.hasArg(OPT_fencode_extended_block_signature); 2652 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2653 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2654 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2655 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2656 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2657 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2658 Opts.Static = Args.hasArg(OPT_static_define); 2659 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2660 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2661 || Args.hasArg(OPT_fdump_record_layouts); 2662 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2663 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2664 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2665 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2666 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2667 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2668 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2669 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2670 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2671 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2672 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2673 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2674 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ); 2675 Opts.CurrentModule = Opts.ModuleName; 2676 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2677 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2678 llvm::sort(Opts.ModuleFeatures); 2679 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2680 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2681 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2682 // is enabled. 2683 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2684 | Opts.NativeHalfArgsAndReturns; 2685 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2686 2687 // __declspec is enabled by default for the PS4 by the driver, and also 2688 // enabled for Microsoft Extensions or Borland Extensions, here. 2689 // 2690 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2691 // CUDA extension. However, it is required for supporting 2692 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2693 // been rewritten in terms of something more generic, remove the Opts.CUDA 2694 // term here. 2695 Opts.DeclSpecKeyword = 2696 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2697 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2698 2699 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2700 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2701 .Case("target", LangOptions::ASMM_Target) 2702 .Case("no", LangOptions::ASMM_Off) 2703 .Case("yes", LangOptions::ASMM_On) 2704 .Default(255)) { 2705 default: 2706 Diags.Report(diag::err_drv_invalid_value) 2707 << "-faddress-space-map-mangling=" << A->getValue(); 2708 break; 2709 case LangOptions::ASMM_Target: 2710 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2711 break; 2712 case LangOptions::ASMM_On: 2713 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2714 break; 2715 case LangOptions::ASMM_Off: 2716 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2717 break; 2718 } 2719 } 2720 2721 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2722 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2723 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2724 A->getValue()) 2725 .Case("single", 2726 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2727 .Case("multiple", 2728 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2729 .Case("virtual", 2730 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2731 .Default(LangOptions::PPTMK_BestCase); 2732 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2733 Diags.Report(diag::err_drv_invalid_value) 2734 << "-fms-memptr-rep=" << A->getValue(); 2735 2736 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2737 } 2738 2739 // Check for MS default calling conventions being specified. 2740 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2741 LangOptions::DefaultCallingConvention DefaultCC = 2742 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2743 .Case("cdecl", LangOptions::DCC_CDecl) 2744 .Case("fastcall", LangOptions::DCC_FastCall) 2745 .Case("stdcall", LangOptions::DCC_StdCall) 2746 .Case("vectorcall", LangOptions::DCC_VectorCall) 2747 .Case("regcall", LangOptions::DCC_RegCall) 2748 .Default(LangOptions::DCC_None); 2749 if (DefaultCC == LangOptions::DCC_None) 2750 Diags.Report(diag::err_drv_invalid_value) 2751 << "-fdefault-calling-conv=" << A->getValue(); 2752 2753 llvm::Triple T(TargetOpts.Triple); 2754 llvm::Triple::ArchType Arch = T.getArch(); 2755 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2756 DefaultCC == LangOptions::DCC_StdCall) && 2757 Arch != llvm::Triple::x86; 2758 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2759 DefaultCC == LangOptions::DCC_RegCall) && 2760 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2761 if (emitError) 2762 Diags.Report(diag::err_drv_argument_not_allowed_with) 2763 << A->getSpelling() << T.getTriple(); 2764 else 2765 Opts.setDefaultCallingConv(DefaultCC); 2766 } 2767 2768 // -mrtd option 2769 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2770 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2771 Diags.Report(diag::err_drv_argument_not_allowed_with) 2772 << A->getSpelling() << "-fdefault-calling-conv"; 2773 else { 2774 llvm::Triple T(TargetOpts.Triple); 2775 if (T.getArch() != llvm::Triple::x86) 2776 Diags.Report(diag::err_drv_argument_not_allowed_with) 2777 << A->getSpelling() << T.getTriple(); 2778 else 2779 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2780 } 2781 } 2782 2783 // Check if -fopenmp is specified. 2784 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2785 // Check if -fopenmp-simd is specified. 2786 bool IsSimdSpecified = 2787 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2788 /*Default=*/false); 2789 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2790 Opts.OpenMPUseTLS = 2791 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2792 Opts.OpenMPIsDevice = 2793 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2794 bool IsTargetSpecified = 2795 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2796 2797 if (Opts.OpenMP || Opts.OpenMPSimd) { 2798 if (int Version = getLastArgIntValue( 2799 Args, OPT_fopenmp_version_EQ, 2800 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 2801 Opts.OpenMP = Version; 2802 else if (IsSimdSpecified || IsTargetSpecified) 2803 Opts.OpenMP = 45; 2804 // Provide diagnostic when a given target is not expected to be an OpenMP 2805 // device or host. 2806 if (!Opts.OpenMPIsDevice) { 2807 switch (T.getArch()) { 2808 default: 2809 break; 2810 // Add unsupported host targets here: 2811 case llvm::Triple::nvptx: 2812 case llvm::Triple::nvptx64: 2813 Diags.Report(diag::err_drv_omp_host_target_not_supported) 2814 << TargetOpts.Triple; 2815 break; 2816 } 2817 } 2818 } 2819 2820 // Set the flag to prevent the implementation from emitting device exception 2821 // handling code for those requiring so. 2822 Opts.OpenMPHostCXXExceptions = Opts.Exceptions && Opts.CXXExceptions; 2823 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 2824 Opts.Exceptions = 0; 2825 Opts.CXXExceptions = 0; 2826 } 2827 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2828 Opts.OpenMPCUDANumSMs = 2829 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 2830 Opts.OpenMPCUDANumSMs, Diags); 2831 Opts.OpenMPCUDABlocksPerSM = 2832 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 2833 Opts.OpenMPCUDABlocksPerSM, Diags); 2834 } 2835 2836 // Get the OpenMP target triples if any. 2837 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2838 2839 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2840 llvm::Triple TT(A->getValue(i)); 2841 2842 if (TT.getArch() == llvm::Triple::UnknownArch || 2843 !(TT.getArch() == llvm::Triple::ppc || 2844 TT.getArch() == llvm::Triple::ppc64 || 2845 TT.getArch() == llvm::Triple::ppc64le || 2846 TT.getArch() == llvm::Triple::nvptx || 2847 TT.getArch() == llvm::Triple::nvptx64 || 2848 TT.getArch() == llvm::Triple::x86 || 2849 TT.getArch() == llvm::Triple::x86_64)) 2850 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 2851 else 2852 Opts.OMPTargetTriples.push_back(TT); 2853 } 2854 } 2855 2856 // Get OpenMP host file path if any and report if a non existent file is 2857 // found 2858 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2859 Opts.OMPHostIRFile = A->getValue(); 2860 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2861 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 2862 << Opts.OMPHostIRFile; 2863 } 2864 2865 // Set CUDA mode for OpenMP target NVPTX if specified in options 2866 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 2867 Args.hasArg(options::OPT_fopenmp_cuda_mode); 2868 2869 // Set CUDA mode for OpenMP target NVPTX if specified in options 2870 Opts.OpenMPCUDAForceFullRuntime = 2871 Opts.OpenMPIsDevice && T.isNVPTX() && 2872 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 2873 2874 // Record whether the __DEPRECATED define was requested. 2875 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2876 OPT_fno_deprecated_macro, 2877 Opts.Deprecated); 2878 2879 // FIXME: Eliminate this dependency. 2880 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2881 OptSize = getOptimizationLevelSize(Args); 2882 Opts.Optimize = Opt != 0; 2883 Opts.OptimizeSize = OptSize != 0; 2884 2885 // This is the __NO_INLINE__ define, which just depends on things like the 2886 // optimization level and -fno-inline, not actually whether the backend has 2887 // inlining enabled. 2888 Opts.NoInlineDefine = !Opts.Optimize; 2889 if (Arg *InlineArg = Args.getLastArg( 2890 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2891 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2892 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2893 Opts.NoInlineDefine = true; 2894 2895 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2896 Args.hasArg(OPT_cl_fast_relaxed_math); 2897 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2898 Args.hasArg(OPT_cl_finite_math_only) || 2899 Args.hasArg(OPT_cl_fast_relaxed_math); 2900 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2901 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2902 Args.hasArg(OPT_cl_fast_relaxed_math); 2903 2904 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2905 StringRef Val = A->getValue(); 2906 if (Val == "fast") 2907 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2908 else if (Val == "on") 2909 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2910 else if (Val == "off") 2911 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2912 else 2913 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2914 } 2915 2916 Opts.RetainCommentsFromSystemHeaders = 2917 Args.hasArg(OPT_fretain_comments_from_system_headers); 2918 2919 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2920 switch (SSP) { 2921 default: 2922 Diags.Report(diag::err_drv_invalid_value) 2923 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2924 break; 2925 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2926 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2927 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2928 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2929 } 2930 2931 // Parse -fsanitize= arguments. 2932 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2933 Diags, Opts.Sanitize); 2934 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2935 Opts.SanitizeAddressFieldPadding = 2936 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2937 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2938 2939 // -fxray-instrument 2940 Opts.XRayInstrument = 2941 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2942 2943 // -fxray-always-emit-customevents 2944 Opts.XRayAlwaysEmitCustomEvents = 2945 Args.hasFlag(OPT_fxray_always_emit_customevents, 2946 OPT_fnoxray_always_emit_customevents, false); 2947 2948 // -fxray-always-emit-typedevents 2949 Opts.XRayAlwaysEmitTypedEvents = 2950 Args.hasFlag(OPT_fxray_always_emit_typedevents, 2951 OPT_fnoxray_always_emit_customevents, false); 2952 2953 // -fxray-{always,never}-instrument= filenames. 2954 Opts.XRayAlwaysInstrumentFiles = 2955 Args.getAllArgValues(OPT_fxray_always_instrument); 2956 Opts.XRayNeverInstrumentFiles = 2957 Args.getAllArgValues(OPT_fxray_never_instrument); 2958 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 2959 2960 // -fforce-emit-vtables 2961 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 2962 2963 // -fallow-editor-placeholders 2964 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2965 2966 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 2967 2968 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 2969 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 2970 2971 StringRef Ver = A->getValue(); 2972 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 2973 unsigned Major, Minor = 0; 2974 2975 // Check the version number is valid: either 3.x (0 <= x <= 9) or 2976 // y or y.0 (4 <= y <= current version). 2977 if (!VerParts.first.startswith("0") && 2978 !VerParts.first.getAsInteger(10, Major) && 2979 3 <= Major && Major <= CLANG_VERSION_MAJOR && 2980 (Major == 3 ? VerParts.second.size() == 1 && 2981 !VerParts.second.getAsInteger(10, Minor) 2982 : VerParts.first.size() == Ver.size() || 2983 VerParts.second == "0")) { 2984 // Got a valid version number. 2985 if (Major == 3 && Minor <= 8) 2986 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 2987 else if (Major <= 4) 2988 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 2989 else if (Major <= 6) 2990 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 2991 else if (Major <= 7) 2992 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 2993 } else if (Ver != "latest") { 2994 Diags.Report(diag::err_drv_invalid_value) 2995 << A->getAsString(Args) << A->getValue(); 2996 } 2997 } 2998 2999 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3000 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3001 } 3002 3003 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3004 switch (Action) { 3005 case frontend::ASTDeclList: 3006 case frontend::ASTDump: 3007 case frontend::ASTPrint: 3008 case frontend::ASTView: 3009 case frontend::EmitAssembly: 3010 case frontend::EmitBC: 3011 case frontend::EmitHTML: 3012 case frontend::EmitLLVM: 3013 case frontend::EmitLLVMOnly: 3014 case frontend::EmitCodeGenOnly: 3015 case frontend::EmitObj: 3016 case frontend::FixIt: 3017 case frontend::GenerateModule: 3018 case frontend::GenerateModuleInterface: 3019 case frontend::GenerateHeaderModule: 3020 case frontend::GeneratePCH: 3021 case frontend::ParseSyntaxOnly: 3022 case frontend::ModuleFileInfo: 3023 case frontend::VerifyPCH: 3024 case frontend::PluginAction: 3025 case frontend::RewriteObjC: 3026 case frontend::RewriteTest: 3027 case frontend::RunAnalysis: 3028 case frontend::TemplightDump: 3029 case frontend::MigrateSource: 3030 return false; 3031 3032 case frontend::DumpCompilerOptions: 3033 case frontend::DumpRawTokens: 3034 case frontend::DumpTokens: 3035 case frontend::InitOnly: 3036 case frontend::PrintPreamble: 3037 case frontend::PrintPreprocessedInput: 3038 case frontend::RewriteMacros: 3039 case frontend::RunPreprocessorOnly: 3040 return true; 3041 } 3042 llvm_unreachable("invalid frontend action"); 3043 } 3044 3045 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3046 DiagnosticsEngine &Diags, 3047 frontend::ActionKind Action) { 3048 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 3049 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3050 Args.hasArg(OPT_pch_through_hdrstop_use); 3051 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3052 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ); 3053 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3054 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3055 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3056 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3057 3058 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3059 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3060 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3061 3062 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3063 StringRef Value(A->getValue()); 3064 size_t Comma = Value.find(','); 3065 unsigned Bytes = 0; 3066 unsigned EndOfLine = 0; 3067 3068 if (Comma == StringRef::npos || 3069 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3070 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3071 Diags.Report(diag::err_drv_preamble_format); 3072 else { 3073 Opts.PrecompiledPreambleBytes.first = Bytes; 3074 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3075 } 3076 } 3077 3078 // Add the __CET__ macro if a CFProtection option is set. 3079 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3080 StringRef Name = A->getValue(); 3081 if (Name == "branch") 3082 Opts.addMacroDef("__CET__=1"); 3083 else if (Name == "return") 3084 Opts.addMacroDef("__CET__=2"); 3085 else if (Name == "full") 3086 Opts.addMacroDef("__CET__=3"); 3087 } 3088 3089 // Add macros from the command line. 3090 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3091 if (A->getOption().matches(OPT_D)) 3092 Opts.addMacroDef(A->getValue()); 3093 else 3094 Opts.addMacroUndef(A->getValue()); 3095 } 3096 3097 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3098 3099 // Add the ordered list of -includes. 3100 for (const auto *A : Args.filtered(OPT_include)) 3101 Opts.Includes.emplace_back(A->getValue()); 3102 3103 for (const auto *A : Args.filtered(OPT_chain_include)) 3104 Opts.ChainedIncludes.emplace_back(A->getValue()); 3105 3106 for (const auto *A : Args.filtered(OPT_remap_file)) { 3107 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3108 3109 if (Split.second.empty()) { 3110 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3111 continue; 3112 } 3113 3114 Opts.addRemappedFile(Split.first, Split.second); 3115 } 3116 3117 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3118 StringRef Name = A->getValue(); 3119 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3120 .Case("libc++", ARCXX_libcxx) 3121 .Case("libstdc++", ARCXX_libstdcxx) 3122 .Case("none", ARCXX_nolib) 3123 .Default(~0U); 3124 if (Library == ~0U) 3125 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3126 else 3127 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3128 } 3129 3130 // Always avoid lexing editor placeholders when we're just running the 3131 // preprocessor as we never want to emit the 3132 // "editor placeholder in source file" error in PP only mode. 3133 if (isStrictlyPreprocessorAction(Action)) 3134 Opts.LexEditorPlaceholders = false; 3135 } 3136 3137 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3138 ArgList &Args, 3139 frontend::ActionKind Action) { 3140 if (isStrictlyPreprocessorAction(Action)) 3141 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3142 else 3143 Opts.ShowCPP = 0; 3144 3145 Opts.ShowComments = Args.hasArg(OPT_C); 3146 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3147 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3148 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3149 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3150 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3151 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3152 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3153 } 3154 3155 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3156 DiagnosticsEngine &Diags) { 3157 Opts.CodeModel = getCodeModel(Args, Diags); 3158 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 3159 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3160 StringRef Value = A->getValue(); 3161 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3162 .Case("default", llvm::EABI::Default) 3163 .Case("4", llvm::EABI::EABI4) 3164 .Case("5", llvm::EABI::EABI5) 3165 .Case("gnu", llvm::EABI::GNU) 3166 .Default(llvm::EABI::Unknown); 3167 if (EABIVersion == llvm::EABI::Unknown) 3168 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3169 << Value; 3170 else 3171 Opts.EABIVersion = EABIVersion; 3172 } 3173 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 3174 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 3175 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3176 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 3177 Opts.Triple = Args.getLastArgValue(OPT_triple); 3178 // Use the default target triple if unspecified. 3179 if (Opts.Triple.empty()) 3180 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3181 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3182 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3183 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3184 Opts.NVPTXUseShortPointers = Args.hasFlag( 3185 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3186 } 3187 3188 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3189 const char *const *ArgBegin, 3190 const char *const *ArgEnd, 3191 DiagnosticsEngine &Diags) { 3192 bool Success = true; 3193 3194 // Parse the arguments. 3195 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 3196 const unsigned IncludedFlagsBitmask = options::CC1Option; 3197 unsigned MissingArgIndex, MissingArgCount; 3198 InputArgList Args = 3199 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 3200 MissingArgCount, IncludedFlagsBitmask); 3201 LangOptions &LangOpts = *Res.getLangOpts(); 3202 3203 // Check for missing argument error. 3204 if (MissingArgCount) { 3205 Diags.Report(diag::err_drv_missing_argument) 3206 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3207 Success = false; 3208 } 3209 3210 // Issue errors on unknown arguments. 3211 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3212 auto ArgString = A->getAsString(Args); 3213 std::string Nearest; 3214 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3215 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3216 else 3217 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3218 << ArgString << Nearest; 3219 Success = false; 3220 } 3221 3222 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3223 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3224 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3225 Success &= 3226 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3227 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3228 ParseCommentArgs(LangOpts.CommentOpts, Args); 3229 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3230 // FIXME: We shouldn't have to pass the DashX option around here 3231 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3232 LangOpts.IsHeaderFile); 3233 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3234 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3235 Res.getTargetOpts(), Res.getFrontendOpts()); 3236 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3237 Res.getFileSystemOpts().WorkingDir); 3238 if (DashX.getFormat() == InputKind::Precompiled || 3239 DashX.getLanguage() == InputKind::LLVM_IR) { 3240 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3241 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3242 // what the input type is. 3243 if (Args.hasArg(OPT_fobjc_arc)) 3244 LangOpts.ObjCAutoRefCount = 1; 3245 // PIClevel and PIELevel are needed during code generation and this should be 3246 // set regardless of the input type. 3247 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3248 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3249 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3250 Diags, LangOpts.Sanitize); 3251 } else { 3252 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 3253 // FIXME: Should we really be calling this for an InputKind::Asm input? 3254 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3255 Res.getPreprocessorOpts(), Diags); 3256 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3257 LangOpts.ObjCExceptions = 1; 3258 } 3259 3260 LangOpts.FunctionAlignment = 3261 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3262 3263 if (LangOpts.CUDA) { 3264 // During CUDA device-side compilation, the aux triple is the 3265 // triple used for host compilation. 3266 if (LangOpts.CUDAIsDevice) 3267 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3268 } 3269 3270 // Set the triple of the host for OpenMP device compile. 3271 if (LangOpts.OpenMPIsDevice) 3272 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3273 3274 // FIXME: Override value name discarding when asan or msan is used because the 3275 // backend passes depend on the name of the alloca in order to print out 3276 // names. 3277 Res.getCodeGenOpts().DiscardValueNames &= 3278 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3279 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3280 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3281 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3282 3283 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3284 Res.getFrontendOpts().ProgramAction); 3285 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3286 Res.getFrontendOpts().ProgramAction); 3287 3288 // Turn on -Wspir-compat for SPIR target. 3289 llvm::Triple T(Res.getTargetOpts().Triple); 3290 auto Arch = T.getArch(); 3291 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 3292 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3293 } 3294 3295 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3296 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3297 !Res.getLangOpts()->Sanitize.empty()) { 3298 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3299 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3300 } 3301 return Success; 3302 } 3303 3304 std::string CompilerInvocation::getModuleHash() const { 3305 // Note: For QoI reasons, the things we use as a hash here should all be 3306 // dumped via the -module-info flag. 3307 using llvm::hash_code; 3308 using llvm::hash_value; 3309 using llvm::hash_combine; 3310 3311 // Start the signature with the compiler version. 3312 // FIXME: We'd rather use something more cryptographically sound than 3313 // CityHash, but this will do for now. 3314 hash_code code = hash_value(getClangFullRepositoryVersion()); 3315 3316 // Extend the signature with the language options 3317 #define LANGOPT(Name, Bits, Default, Description) \ 3318 code = hash_combine(code, LangOpts->Name); 3319 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3320 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3321 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3322 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3323 #include "clang/Basic/LangOptions.def" 3324 3325 for (StringRef Feature : LangOpts->ModuleFeatures) 3326 code = hash_combine(code, Feature); 3327 3328 // Extend the signature with the target options. 3329 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3330 TargetOpts->ABI); 3331 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3332 code = hash_combine(code, FeatureAsWritten); 3333 3334 // Extend the signature with preprocessor options. 3335 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3336 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3337 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3338 3339 for (const auto &I : getPreprocessorOpts().Macros) { 3340 // If we're supposed to ignore this macro for the purposes of modules, 3341 // don't put it into the hash. 3342 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3343 // Check whether we're ignoring this macro. 3344 StringRef MacroDef = I.first; 3345 if (hsOpts.ModulesIgnoreMacros.count( 3346 llvm::CachedHashString(MacroDef.split('=').first))) 3347 continue; 3348 } 3349 3350 code = hash_combine(code, I.first, I.second); 3351 } 3352 3353 // Extend the signature with the sysroot and other header search options. 3354 code = hash_combine(code, hsOpts.Sysroot, 3355 hsOpts.ModuleFormat, 3356 hsOpts.UseDebugInfo, 3357 hsOpts.UseBuiltinIncludes, 3358 hsOpts.UseStandardSystemIncludes, 3359 hsOpts.UseStandardCXXIncludes, 3360 hsOpts.UseLibcxx, 3361 hsOpts.ModulesValidateDiagnosticOptions); 3362 code = hash_combine(code, hsOpts.ResourceDir); 3363 3364 // Extend the signature with the user build path. 3365 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3366 3367 // Extend the signature with the module file extensions. 3368 const FrontendOptions &frontendOpts = getFrontendOpts(); 3369 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3370 code = ext->hashExtension(code); 3371 } 3372 3373 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3374 // affects the debug info in the PCM. 3375 if (getCodeGenOpts().DebugTypeExtRefs) 3376 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3377 code = hash_combine(code, KeyValue.first, KeyValue.second); 3378 3379 // Extend the signature with the enabled sanitizers, if at least one is 3380 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3381 SanitizerSet SanHash = LangOpts->Sanitize; 3382 SanHash.clear(getPPTransparentSanitizers()); 3383 if (!SanHash.empty()) 3384 code = hash_combine(code, SanHash.Mask); 3385 3386 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3387 } 3388 3389 template<typename IntTy> 3390 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 3391 IntTy Default, 3392 DiagnosticsEngine *Diags) { 3393 IntTy Res = Default; 3394 if (Arg *A = Args.getLastArg(Id)) { 3395 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 3396 if (Diags) 3397 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 3398 << A->getValue(); 3399 } 3400 } 3401 return Res; 3402 } 3403 3404 namespace clang { 3405 3406 // Declared in clang/Frontend/Utils.h. 3407 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 3408 DiagnosticsEngine *Diags) { 3409 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 3410 } 3411 3412 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 3413 uint64_t Default, 3414 DiagnosticsEngine *Diags) { 3415 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 3416 } 3417 3418 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3419 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3420 DiagnosticsEngine &Diags) { 3421 return createVFSFromCompilerInvocation(CI, Diags, 3422 llvm::vfs::getRealFileSystem()); 3423 } 3424 3425 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3426 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3427 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3428 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3429 return BaseFS; 3430 3431 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3432 // earlier vfs files are on the bottom 3433 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3434 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3435 Result->getBufferForFile(File); 3436 if (!Buffer) { 3437 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3438 continue; 3439 } 3440 3441 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3442 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3443 /*DiagContext*/ nullptr, Result); 3444 if (!FS) { 3445 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3446 continue; 3447 } 3448 3449 Result = FS; 3450 } 3451 return Result; 3452 } 3453 3454 } // namespace clang 3455