1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.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/Driver.h" 30 #include "clang/Driver/DriverDiagnostic.h" 31 #include "clang/Driver/Options.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/FrontendPluginRegistry.h" 37 #include "clang/Frontend/LangStandard.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/Utils.h" 41 #include "clang/Lex/HeaderSearchOptions.h" 42 #include "clang/Lex/PreprocessorOptions.h" 43 #include "clang/Sema/CodeCompleteOptions.h" 44 #include "clang/Serialization/ModuleFileExtension.h" 45 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 46 #include "llvm/ADT/APInt.h" 47 #include "llvm/ADT/ArrayRef.h" 48 #include "llvm/ADT/CachedHashString.h" 49 #include "llvm/ADT/Hashing.h" 50 #include "llvm/ADT/None.h" 51 #include "llvm/ADT/Optional.h" 52 #include "llvm/ADT/SmallString.h" 53 #include "llvm/ADT/SmallVector.h" 54 #include "llvm/ADT/StringRef.h" 55 #include "llvm/ADT/StringSwitch.h" 56 #include "llvm/ADT/Triple.h" 57 #include "llvm/ADT/Twine.h" 58 #include "llvm/IR/DebugInfoMetadata.h" 59 #include "llvm/Linker/Linker.h" 60 #include "llvm/MC/MCTargetOptions.h" 61 #include "llvm/Option/Arg.h" 62 #include "llvm/Option/ArgList.h" 63 #include "llvm/Option/OptSpecifier.h" 64 #include "llvm/Option/OptTable.h" 65 #include "llvm/Option/Option.h" 66 #include "llvm/ProfileData/InstrProfReader.h" 67 #include "llvm/Support/CodeGen.h" 68 #include "llvm/Support/Compiler.h" 69 #include "llvm/Support/Error.h" 70 #include "llvm/Support/ErrorHandling.h" 71 #include "llvm/Support/ErrorOr.h" 72 #include "llvm/Support/FileSystem.h" 73 #include "llvm/Support/Host.h" 74 #include "llvm/Support/MathExtras.h" 75 #include "llvm/Support/MemoryBuffer.h" 76 #include "llvm/Support/Path.h" 77 #include "llvm/Support/Process.h" 78 #include "llvm/Support/Regex.h" 79 #include "llvm/Support/VersionTuple.h" 80 #include "llvm/Support/VirtualFileSystem.h" 81 #include "llvm/Support/raw_ostream.h" 82 #include "llvm/Target/TargetOptions.h" 83 #include <algorithm> 84 #include <atomic> 85 #include <cassert> 86 #include <cstddef> 87 #include <cstring> 88 #include <memory> 89 #include <string> 90 #include <tuple> 91 #include <utility> 92 #include <vector> 93 94 using namespace clang; 95 using namespace driver; 96 using namespace options; 97 using namespace llvm::opt; 98 99 //===----------------------------------------------------------------------===// 100 // Initialization. 101 //===----------------------------------------------------------------------===// 102 103 CompilerInvocationBase::CompilerInvocationBase() 104 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 105 DiagnosticOpts(new DiagnosticOptions()), 106 HeaderSearchOpts(new HeaderSearchOptions()), 107 PreprocessorOpts(new PreprocessorOptions()) {} 108 109 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 110 : LangOpts(new LangOptions(*X.getLangOpts())), 111 TargetOpts(new TargetOptions(X.getTargetOpts())), 112 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 113 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 114 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 115 116 CompilerInvocationBase::~CompilerInvocationBase() = default; 117 118 //===----------------------------------------------------------------------===// 119 // Deserialization (from args) 120 //===----------------------------------------------------------------------===// 121 122 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 123 DiagnosticsEngine &Diags) { 124 unsigned DefaultOpt = llvm::CodeGenOpt::None; 125 if (IK.getLanguage() == InputKind::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 126 DefaultOpt = llvm::CodeGenOpt::Default; 127 128 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 129 if (A->getOption().matches(options::OPT_O0)) 130 return llvm::CodeGenOpt::None; 131 132 if (A->getOption().matches(options::OPT_Ofast)) 133 return llvm::CodeGenOpt::Aggressive; 134 135 assert(A->getOption().matches(options::OPT_O)); 136 137 StringRef S(A->getValue()); 138 if (S == "s" || S == "z" || S.empty()) 139 return llvm::CodeGenOpt::Default; 140 141 if (S == "g") 142 return llvm::CodeGenOpt::Less; 143 144 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 145 } 146 147 return DefaultOpt; 148 } 149 150 static unsigned getOptimizationLevelSize(ArgList &Args) { 151 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 152 if (A->getOption().matches(options::OPT_O)) { 153 switch (A->getValue()[0]) { 154 default: 155 return 0; 156 case 's': 157 return 1; 158 case 'z': 159 return 2; 160 } 161 } 162 } 163 return 0; 164 } 165 166 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 167 OptSpecifier GroupWithValue, 168 std::vector<std::string> &Diagnostics) { 169 for (auto *A : Args.filtered(Group)) { 170 if (A->getOption().getKind() == Option::FlagClass) { 171 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 172 // its name (minus the "W" or "R" at the beginning) to the warning list. 173 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 174 } else if (A->getOption().matches(GroupWithValue)) { 175 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 176 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 177 } else { 178 // Otherwise, add its value (for OPT_W_Joined and similar). 179 for (const auto *Arg : A->getValues()) 180 Diagnostics.emplace_back(Arg); 181 } 182 } 183 } 184 185 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 186 // it won't verify the input. 187 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 188 DiagnosticsEngine *Diags); 189 190 static void getAllNoBuiltinFuncValues(ArgList &Args, 191 std::vector<std::string> &Funcs) { 192 SmallVector<const char *, 8> Values; 193 for (const auto &Arg : Args) { 194 const Option &O = Arg->getOption(); 195 if (O.matches(options::OPT_fno_builtin_)) { 196 const char *FuncName = Arg->getValue(); 197 if (Builtin::Context::isBuiltinFunc(FuncName)) 198 Values.push_back(FuncName); 199 } 200 } 201 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 202 } 203 204 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 205 DiagnosticsEngine &Diags) { 206 bool Success = true; 207 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 208 StringRef Name = A->getValue(); 209 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 210 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 211 .Case(CMDFLAG, NAME##Model) 212 #include "clang/StaticAnalyzer/Core/Analyses.def" 213 .Default(NumStores); 214 if (Value == NumStores) { 215 Diags.Report(diag::err_drv_invalid_value) 216 << A->getAsString(Args) << Name; 217 Success = false; 218 } else { 219 Opts.AnalysisStoreOpt = Value; 220 } 221 } 222 223 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 224 StringRef Name = A->getValue(); 225 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 226 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 227 .Case(CMDFLAG, NAME##Model) 228 #include "clang/StaticAnalyzer/Core/Analyses.def" 229 .Default(NumConstraints); 230 if (Value == NumConstraints) { 231 Diags.Report(diag::err_drv_invalid_value) 232 << A->getAsString(Args) << Name; 233 Success = false; 234 } else { 235 Opts.AnalysisConstraintsOpt = Value; 236 } 237 } 238 239 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 240 StringRef Name = A->getValue(); 241 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 242 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 243 .Case(CMDFLAG, PD_##NAME) 244 #include "clang/StaticAnalyzer/Core/Analyses.def" 245 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 246 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 247 Diags.Report(diag::err_drv_invalid_value) 248 << A->getAsString(Args) << Name; 249 Success = false; 250 } else { 251 Opts.AnalysisDiagOpt = Value; 252 } 253 } 254 255 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 256 StringRef Name = A->getValue(); 257 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 258 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 259 .Case(CMDFLAG, NAME) 260 #include "clang/StaticAnalyzer/Core/Analyses.def" 261 .Default(NumPurgeModes); 262 if (Value == NumPurgeModes) { 263 Diags.Report(diag::err_drv_invalid_value) 264 << A->getAsString(Args) << Name; 265 Success = false; 266 } else { 267 Opts.AnalysisPurgeOpt = Value; 268 } 269 } 270 271 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 272 StringRef Name = A->getValue(); 273 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 274 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 275 .Case(CMDFLAG, NAME) 276 #include "clang/StaticAnalyzer/Core/Analyses.def" 277 .Default(NumInliningModes); 278 if (Value == NumInliningModes) { 279 Diags.Report(diag::err_drv_invalid_value) 280 << A->getAsString(Args) << Name; 281 Success = false; 282 } else { 283 Opts.InliningMode = Value; 284 } 285 } 286 287 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 288 Opts.ShowCheckerHelpHidden = Args.hasArg(OPT_analyzer_checker_help_hidden); 289 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 290 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 291 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 292 Opts.ShouldEmitErrorsOnInvalidConfigValue = 293 /* negated */!llvm::StringSwitch<bool>( 294 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 295 .Case("true", true) 296 .Case("false", false) 297 .Default(false); 298 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 299 300 Opts.visualizeExplodedGraphWithGraphViz = 301 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 302 Opts.DumpExplodedGraphTo = Args.getLastArgValue(OPT_analyzer_dump_egraph); 303 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 304 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 305 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 306 Opts.AnalyzeNestedBlocks = 307 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 308 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 309 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 310 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 311 Opts.maxBlockVisitOnPath = 312 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 313 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 314 Opts.InlineMaxStackDepth = 315 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 316 Opts.InlineMaxStackDepth, Diags); 317 318 Opts.CheckersControlList.clear(); 319 for (const Arg *A : 320 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 321 A->claim(); 322 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 323 // We can have a list of comma separated checker names, e.g: 324 // '-analyzer-checker=cocoa,unix' 325 StringRef checkerList = A->getValue(); 326 SmallVector<StringRef, 4> checkers; 327 checkerList.split(checkers, ","); 328 for (auto checker : checkers) 329 Opts.CheckersControlList.emplace_back(checker, enable); 330 } 331 332 // Go through the analyzer configuration options. 333 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 334 335 // We can have a list of comma separated config names, e.g: 336 // '-analyzer-config key1=val1,key2=val2' 337 StringRef configList = A->getValue(); 338 SmallVector<StringRef, 4> configVals; 339 configList.split(configVals, ","); 340 for (const auto &configVal : configVals) { 341 StringRef key, val; 342 std::tie(key, val) = configVal.split("="); 343 if (val.empty()) { 344 Diags.Report(SourceLocation(), 345 diag::err_analyzer_config_no_value) << configVal; 346 Success = false; 347 break; 348 } 349 if (val.find('=') != StringRef::npos) { 350 Diags.Report(SourceLocation(), 351 diag::err_analyzer_config_multiple_values) 352 << configVal; 353 Success = false; 354 break; 355 } 356 357 // TODO: Check checker options too, possibly in CheckerRegistry. 358 // Leave unknown non-checker configs unclaimed. 359 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 360 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 361 Diags.Report(diag::err_analyzer_config_unknown) << key; 362 continue; 363 } 364 365 A->claim(); 366 Opts.Config[key] = val; 367 } 368 } 369 370 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 371 parseAnalyzerConfigs(Opts, &Diags); 372 else 373 parseAnalyzerConfigs(Opts, nullptr); 374 375 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 376 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 377 if (i != 0) 378 os << " "; 379 os << Args.getArgString(i); 380 } 381 os.flush(); 382 383 return Success; 384 } 385 386 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 387 StringRef OptionName, StringRef DefaultVal) { 388 return Config.insert({OptionName, DefaultVal}).first->second; 389 } 390 391 static void initOption(AnalyzerOptions::ConfigTable &Config, 392 DiagnosticsEngine *Diags, 393 StringRef &OptionField, StringRef Name, 394 StringRef DefaultVal) { 395 // String options may be known to invalid (e.g. if the expected string is a 396 // file name, but the file does not exist), those will have to be checked in 397 // parseConfigs. 398 OptionField = getStringOption(Config, Name, DefaultVal); 399 } 400 401 static void initOption(AnalyzerOptions::ConfigTable &Config, 402 DiagnosticsEngine *Diags, 403 bool &OptionField, StringRef Name, bool DefaultVal) { 404 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 405 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 406 .Case("true", true) 407 .Case("false", false) 408 .Default(None); 409 410 if (!PossiblyInvalidVal) { 411 if (Diags) 412 Diags->Report(diag::err_analyzer_config_invalid_input) 413 << Name << "a boolean"; 414 else 415 OptionField = DefaultVal; 416 } else 417 OptionField = PossiblyInvalidVal.getValue(); 418 } 419 420 static void initOption(AnalyzerOptions::ConfigTable &Config, 421 DiagnosticsEngine *Diags, 422 unsigned &OptionField, StringRef Name, 423 unsigned DefaultVal) { 424 425 OptionField = DefaultVal; 426 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 427 .getAsInteger(0, OptionField); 428 if (Diags && HasFailed) 429 Diags->Report(diag::err_analyzer_config_invalid_input) 430 << Name << "an unsigned"; 431 } 432 433 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 434 DiagnosticsEngine *Diags) { 435 // TODO: There's no need to store the entire configtable, it'd be plenty 436 // enough tostore checker options. 437 438 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 439 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 440 441 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 442 SHALLOW_VAL, DEEP_VAL) \ 443 switch (AnOpts.getUserMode()) { \ 444 case UMK_Shallow: \ 445 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 446 break; \ 447 case UMK_Deep: \ 448 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 449 break; \ 450 } \ 451 452 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 453 #undef ANALYZER_OPTION 454 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 455 456 // At this point, AnalyzerOptions is configured. Let's validate some options. 457 458 if (!Diags) 459 return; 460 461 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 462 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 463 << "a filename"; 464 465 if (!AnOpts.ModelPath.empty() && 466 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 467 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 468 << "a filename"; 469 } 470 471 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 472 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 473 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 474 return true; 475 } 476 477 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 478 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 479 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 480 } 481 482 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 483 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 484 StringRef Value = A->getValue(); 485 if (Value == "small" || Value == "kernel" || Value == "medium" || 486 Value == "large" || Value == "tiny") 487 return Value; 488 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 489 } 490 return "default"; 491 } 492 493 static llvm::Reloc::Model getRelocModel(ArgList &Args, 494 DiagnosticsEngine &Diags) { 495 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 496 StringRef Value = A->getValue(); 497 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 498 .Case("static", llvm::Reloc::Static) 499 .Case("pic", llvm::Reloc::PIC_) 500 .Case("ropi", llvm::Reloc::ROPI) 501 .Case("rwpi", llvm::Reloc::RWPI) 502 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 503 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 504 .Default(None); 505 if (RM.hasValue()) 506 return *RM; 507 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 508 } 509 return llvm::Reloc::PIC_; 510 } 511 512 /// Create a new Regex instance out of the string value in \p RpassArg. 513 /// It returns a pointer to the newly generated Regex instance. 514 static std::shared_ptr<llvm::Regex> 515 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 516 Arg *RpassArg) { 517 StringRef Val = RpassArg->getValue(); 518 std::string RegexError; 519 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 520 if (!Pattern->isValid(RegexError)) { 521 Diags.Report(diag::err_drv_optimization_remark_pattern) 522 << RegexError << RpassArg->getAsString(Args); 523 Pattern.reset(); 524 } 525 return Pattern; 526 } 527 528 static bool parseDiagnosticLevelMask(StringRef FlagName, 529 const std::vector<std::string> &Levels, 530 DiagnosticsEngine *Diags, 531 DiagnosticLevelMask &M) { 532 bool Success = true; 533 for (const auto &Level : Levels) { 534 DiagnosticLevelMask const PM = 535 llvm::StringSwitch<DiagnosticLevelMask>(Level) 536 .Case("note", DiagnosticLevelMask::Note) 537 .Case("remark", DiagnosticLevelMask::Remark) 538 .Case("warning", DiagnosticLevelMask::Warning) 539 .Case("error", DiagnosticLevelMask::Error) 540 .Default(DiagnosticLevelMask::None); 541 if (PM == DiagnosticLevelMask::None) { 542 Success = false; 543 if (Diags) 544 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 545 } 546 M = M | PM; 547 } 548 return Success; 549 } 550 551 static void parseSanitizerKinds(StringRef FlagName, 552 const std::vector<std::string> &Sanitizers, 553 DiagnosticsEngine &Diags, SanitizerSet &S) { 554 for (const auto &Sanitizer : Sanitizers) { 555 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 556 if (K == SanitizerMask()) 557 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 558 else 559 S.set(K, true); 560 } 561 } 562 563 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 564 ArgList &Args, DiagnosticsEngine &D, 565 XRayInstrSet &S) { 566 llvm::SmallVector<StringRef, 2> BundleParts; 567 llvm::SplitString(Bundle, BundleParts, ","); 568 for (const auto B : BundleParts) { 569 auto Mask = parseXRayInstrValue(B); 570 if (Mask == XRayInstrKind::None) 571 if (B != "none") 572 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 573 else 574 S.Mask = Mask; 575 else if (Mask == XRayInstrKind::All) 576 S.Mask = Mask; 577 else 578 S.set(Mask, true); 579 } 580 } 581 582 // Set the profile kind for fprofile-instrument. 583 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 584 DiagnosticsEngine &Diags) { 585 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 586 if (A == nullptr) 587 return; 588 StringRef S = A->getValue(); 589 unsigned I = llvm::StringSwitch<unsigned>(S) 590 .Case("none", CodeGenOptions::ProfileNone) 591 .Case("clang", CodeGenOptions::ProfileClangInstr) 592 .Case("llvm", CodeGenOptions::ProfileIRInstr) 593 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 594 .Default(~0U); 595 if (I == ~0U) { 596 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 597 << S; 598 return; 599 } 600 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 601 Opts.setProfileInstr(Instrumentor); 602 } 603 604 // Set the profile kind using fprofile-instrument-use-path. 605 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 606 const Twine &ProfileName) { 607 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 608 // In error, return silently and let Clang PGOUse report the error message. 609 if (auto E = ReaderOrErr.takeError()) { 610 llvm::consumeError(std::move(E)); 611 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 612 return; 613 } 614 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 615 std::move(ReaderOrErr.get()); 616 if (PGOReader->isIRLevelProfile()) { 617 if (PGOReader->hasCSIRLevelProfile()) 618 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 619 else 620 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 621 } else 622 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 623 } 624 625 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 626 DiagnosticsEngine &Diags, 627 const TargetOptions &TargetOpts, 628 const FrontendOptions &FrontendOpts) { 629 bool Success = true; 630 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 631 632 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 633 // TODO: This could be done in Driver 634 unsigned MaxOptLevel = 3; 635 if (OptimizationLevel > MaxOptLevel) { 636 // If the optimization level is not supported, fall back on the default 637 // optimization 638 Diags.Report(diag::warn_drv_optimization_value) 639 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 640 OptimizationLevel = MaxOptLevel; 641 } 642 Opts.OptimizationLevel = OptimizationLevel; 643 644 // At O0 we want to fully disable inlining outside of cases marked with 645 // 'alwaysinline' that are required for correctness. 646 Opts.setInlining((Opts.OptimizationLevel == 0) 647 ? CodeGenOptions::OnlyAlwaysInlining 648 : CodeGenOptions::NormalInlining); 649 // Explicit inlining flags can disable some or all inlining even at 650 // optimization levels above zero. 651 if (Arg *InlineArg = Args.getLastArg( 652 options::OPT_finline_functions, options::OPT_finline_hint_functions, 653 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 654 if (Opts.OptimizationLevel > 0) { 655 const Option &InlineOpt = InlineArg->getOption(); 656 if (InlineOpt.matches(options::OPT_finline_functions)) 657 Opts.setInlining(CodeGenOptions::NormalInlining); 658 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 659 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 660 else 661 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 662 } 663 } 664 665 Opts.ExperimentalNewPassManager = Args.hasFlag( 666 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 667 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 668 669 Opts.DebugPassManager = 670 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 671 /* Default */ false); 672 673 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 674 StringRef Name = A->getValue(); 675 if (Name == "Accelerate") 676 Opts.setVecLib(CodeGenOptions::Accelerate); 677 else if (Name == "SVML") 678 Opts.setVecLib(CodeGenOptions::SVML); 679 else if (Name == "none") 680 Opts.setVecLib(CodeGenOptions::NoLibrary); 681 else 682 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 683 } 684 685 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 686 unsigned Val = 687 llvm::StringSwitch<unsigned>(A->getValue()) 688 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 689 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 690 .Case("limited", codegenoptions::LimitedDebugInfo) 691 .Case("standalone", codegenoptions::FullDebugInfo) 692 .Default(~0U); 693 if (Val == ~0U) 694 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 695 << A->getValue(); 696 else 697 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 698 } 699 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 700 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 701 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 702 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 703 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 704 .Default(~0U); 705 if (Val == ~0U) 706 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 707 << A->getValue(); 708 else 709 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 710 } 711 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 712 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 713 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 714 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 715 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 716 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 717 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 718 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 719 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 720 721 if (Arg *A = 722 Args.getLastArg(OPT_enable_split_dwarf, OPT_enable_split_dwarf_EQ)) { 723 if (A->getOption().matches(options::OPT_enable_split_dwarf)) { 724 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 725 } else { 726 StringRef Name = A->getValue(); 727 if (Name == "single") 728 Opts.setSplitDwarfMode(CodeGenOptions::SingleFileFission); 729 else if (Name == "split") 730 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 731 else 732 Diags.Report(diag::err_drv_invalid_value) 733 << A->getAsString(Args) << Name; 734 } 735 } 736 737 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 738 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 739 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 740 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 741 742 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 743 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 744 745 if (const Arg *A = 746 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 747 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 748 749 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 750 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 751 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 752 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 753 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 754 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 755 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 756 OPT_fuse_register_sized_bitfield_access); 757 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 758 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 759 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 760 Args.hasArg(OPT_new_struct_path_tbaa); 761 Opts.FineGrainedBitfieldAccesses = 762 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 763 OPT_fno_fine_grained_bitfield_accesses, false); 764 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 765 Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line); 766 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 767 Opts.NoCommon = Args.hasArg(OPT_fno_common); 768 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 769 Opts.OptimizeSize = getOptimizationLevelSize(Args); 770 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 771 Args.hasArg(OPT_ffreestanding)); 772 if (Opts.SimplifyLibCalls) 773 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 774 Opts.UnrollLoops = 775 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 776 (Opts.OptimizationLevel > 1)); 777 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 778 779 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 780 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 781 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 782 Opts.DebugInfoForProfiling = Args.hasFlag( 783 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 784 Opts.DebugNameTable = static_cast<unsigned>( 785 Args.hasArg(OPT_ggnu_pubnames) 786 ? llvm::DICompileUnit::DebugNameTableKind::GNU 787 : Args.hasArg(OPT_gpubnames) 788 ? llvm::DICompileUnit::DebugNameTableKind::Default 789 : llvm::DICompileUnit::DebugNameTableKind::None); 790 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 791 792 setPGOInstrumentor(Opts, Args, Diags); 793 Opts.InstrProfileOutput = 794 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 795 Opts.ProfileInstrumentUsePath = 796 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 797 if (!Opts.ProfileInstrumentUsePath.empty()) 798 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 799 Opts.ProfileRemappingFile = 800 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ); 801 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 802 Diags.Report(diag::err_drv_argument_only_allowed_with) 803 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 804 << "-fexperimental-new-pass-manager"; 805 } 806 807 Opts.CoverageMapping = 808 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 809 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 810 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 811 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 812 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 813 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 814 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 815 Opts.RegisterGlobalDtorsWithAtExit = 816 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 817 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 818 Opts.CodeModel = TargetOpts.CodeModel; 819 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 820 Opts.DisableFPElim = 821 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 822 Opts.DisableFree = Args.hasArg(OPT_disable_free); 823 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 824 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 825 Opts.NoEscapingBlockTailCalls = 826 Args.hasArg(OPT_fno_escaping_block_tail_calls); 827 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 828 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 829 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 830 Args.hasArg(OPT_cl_fast_relaxed_math); 831 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 832 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 833 Args.hasArg(OPT_cl_finite_math_only) || 834 Args.hasArg(OPT_cl_fast_relaxed_math)); 835 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 836 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 837 Args.hasArg(OPT_cl_finite_math_only) || 838 Args.hasArg(OPT_cl_fast_relaxed_math)); 839 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 840 Args.hasArg(OPT_cl_no_signed_zeros) || 841 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 842 Args.hasArg(OPT_cl_fast_relaxed_math)); 843 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 844 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) || 845 (Args.hasArg(OPT_fcuda_is_device) && 846 Args.hasArg(OPT_fcuda_flush_denormals_to_zero)); 847 Opts.CorrectlyRoundedDivSqrt = 848 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 849 Opts.UniformWGSize = 850 Args.hasArg(OPT_cl_uniform_work_group_size); 851 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 852 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 853 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 854 Opts.StrictFloatCastOverflow = 855 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 856 857 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 858 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 859 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 860 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 861 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 862 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 863 Opts.IncrementalLinkerCompatible = 864 Args.hasArg(OPT_mincremental_linker_compatible); 865 Opts.PIECopyRelocations = 866 Args.hasArg(OPT_mpie_copy_relocations); 867 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 868 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 869 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 870 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 871 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 872 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 873 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 874 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 875 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 876 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 877 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 878 Args.hasArg(OPT_cl_fast_relaxed_math); 879 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 880 Opts.RelocationModel = getRelocModel(Args, Diags); 881 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 882 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 883 Diags.Report(diag::err_drv_invalid_value) 884 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 885 << Opts.ThreadModel; 886 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 887 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 888 889 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 890 OPT_fno_function_sections, false); 891 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 892 OPT_fno_data_sections, false); 893 Opts.StackSizeSection = 894 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 895 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 896 OPT_fno_unique_section_names, true); 897 898 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 899 900 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 901 902 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 903 904 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 905 906 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 907 Opts.PrepareForThinLTO = false; 908 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 909 StringRef S = A->getValue(); 910 if (S == "thin") 911 Opts.PrepareForThinLTO = true; 912 else if (S != "full") 913 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 914 } 915 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 916 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 917 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 918 if (IK.getLanguage() != InputKind::LLVM_IR) 919 Diags.Report(diag::err_drv_argument_only_allowed_with) 920 << A->getAsString(Args) << "-x ir"; 921 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 922 } 923 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 924 Opts.SaveTempsFilePrefix = 925 llvm::StringSwitch<std::string>(A->getValue()) 926 .Case("obj", FrontendOpts.OutputFile) 927 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 928 929 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 930 931 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 932 933 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 934 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 935 936 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 937 938 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 939 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 940 941 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 942 943 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 944 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 945 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 946 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 947 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 948 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 949 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 950 Opts.CoverageNoFunctionNamesInData = 951 Args.hasArg(OPT_coverage_no_function_names_in_data); 952 Opts.ProfileFilterFiles = 953 Args.getLastArgValue(OPT_fprofile_filter_files_EQ); 954 Opts.ProfileExcludeFiles = 955 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ); 956 Opts.CoverageExitBlockBeforeBody = 957 Args.hasArg(OPT_coverage_exit_block_before_body); 958 if (Args.hasArg(OPT_coverage_version_EQ)) { 959 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 960 if (CoverageVersion.size() != 4) { 961 Diags.Report(diag::err_drv_invalid_value) 962 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 963 << CoverageVersion; 964 } else { 965 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 966 } 967 } 968 } 969 // Handle -fembed-bitcode option. 970 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 971 StringRef Name = A->getValue(); 972 unsigned Model = llvm::StringSwitch<unsigned>(Name) 973 .Case("off", CodeGenOptions::Embed_Off) 974 .Case("all", CodeGenOptions::Embed_All) 975 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 976 .Case("marker", CodeGenOptions::Embed_Marker) 977 .Default(~0U); 978 if (Model == ~0U) { 979 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 980 Success = false; 981 } else 982 Opts.setEmbedBitcode( 983 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 984 } 985 // FIXME: For backend options that are not yet recorded as function 986 // attributes in the IR, keep track of them so we can embed them in a 987 // separate data section and use them when building the bitcode. 988 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 989 for (const auto &A : Args) { 990 // Do not encode output and input. 991 if (A->getOption().getID() == options::OPT_o || 992 A->getOption().getID() == options::OPT_INPUT || 993 A->getOption().getID() == options::OPT_x || 994 A->getOption().getID() == options::OPT_fembed_bitcode || 995 (A->getOption().getGroup().isValid() && 996 A->getOption().getGroup().getID() == options::OPT_W_Group)) 997 continue; 998 ArgStringList ASL; 999 A->render(Args, ASL); 1000 for (const auto &arg : ASL) { 1001 StringRef ArgStr(arg); 1002 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1003 // using \00 to separate each commandline options. 1004 Opts.CmdArgs.push_back('\0'); 1005 } 1006 } 1007 } 1008 1009 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1010 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1011 Opts.InstrumentFunctionsAfterInlining = 1012 Args.hasArg(OPT_finstrument_functions_after_inlining); 1013 Opts.InstrumentFunctionEntryBare = 1014 Args.hasArg(OPT_finstrument_function_entry_bare); 1015 1016 Opts.XRayInstrumentFunctions = 1017 Args.hasArg(OPT_fxray_instrument); 1018 Opts.XRayAlwaysEmitCustomEvents = 1019 Args.hasArg(OPT_fxray_always_emit_customevents); 1020 Opts.XRayAlwaysEmitTypedEvents = 1021 Args.hasArg(OPT_fxray_always_emit_typedevents); 1022 Opts.XRayInstructionThreshold = 1023 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1024 1025 auto XRayInstrBundles = 1026 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1027 if (XRayInstrBundles.empty()) 1028 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1029 else 1030 for (const auto &A : XRayInstrBundles) 1031 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1032 Diags, Opts.XRayInstrumentationBundle); 1033 1034 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1035 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1036 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1037 1038 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1039 StringRef Name = A->getValue(); 1040 if (Name == "full") { 1041 Opts.CFProtectionReturn = 1; 1042 Opts.CFProtectionBranch = 1; 1043 } else if (Name == "return") 1044 Opts.CFProtectionReturn = 1; 1045 else if (Name == "branch") 1046 Opts.CFProtectionBranch = 1; 1047 else if (Name != "none") { 1048 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1049 Success = false; 1050 } 1051 } 1052 1053 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1054 OPT_compress_debug_sections_EQ)) { 1055 if (A->getOption().getID() == OPT_compress_debug_sections) { 1056 // TODO: be more clever about the compression type auto-detection 1057 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1058 } else { 1059 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1060 .Case("none", llvm::DebugCompressionType::None) 1061 .Case("zlib", llvm::DebugCompressionType::Z) 1062 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1063 .Default(llvm::DebugCompressionType::None); 1064 Opts.setCompressDebugSections(DCT); 1065 } 1066 } 1067 1068 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1069 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1070 for (auto *A : 1071 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1072 CodeGenOptions::BitcodeFileToLink F; 1073 F.Filename = A->getValue(); 1074 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1075 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1076 // When linking CUDA bitcode, propagate function attributes so that 1077 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1078 F.PropagateAttrs = true; 1079 F.Internalize = true; 1080 } 1081 Opts.LinkBitcodeFiles.push_back(F); 1082 } 1083 Opts.SanitizeCoverageType = 1084 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1085 Opts.SanitizeCoverageIndirectCalls = 1086 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1087 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1088 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1089 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1090 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1091 Opts.SanitizeCoverage8bitCounters = 1092 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1093 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1094 Opts.SanitizeCoverageTracePCGuard = 1095 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1096 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1097 Opts.SanitizeCoverageInline8bitCounters = 1098 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1099 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1100 Opts.SanitizeCoverageStackDepth = 1101 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1102 Opts.SanitizeMemoryTrackOrigins = 1103 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1104 Opts.SanitizeMemoryUseAfterDtor = 1105 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1106 OPT_fno_sanitize_memory_use_after_dtor, 1107 false); 1108 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1109 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1110 Opts.SanitizeCfiICallGeneralizePointers = 1111 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1112 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1113 if (Arg *A = Args.getLastArg( 1114 OPT_fsanitize_address_poison_custom_array_cookie, 1115 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1116 Opts.SanitizeAddressPoisonCustomArrayCookie = 1117 A->getOption().getID() == 1118 OPT_fsanitize_address_poison_custom_array_cookie; 1119 } 1120 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1121 OPT_fno_sanitize_address_use_after_scope)) { 1122 Opts.SanitizeAddressUseAfterScope = 1123 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1124 } 1125 Opts.SanitizeAddressGlobalsDeadStripping = 1126 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1127 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1128 OPT_fno_sanitize_address_use_odr_indicator)) { 1129 Opts.SanitizeAddressUseOdrIndicator = 1130 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1131 } 1132 Opts.SSPBufferSize = 1133 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1134 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1135 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1136 StringRef Val = A->getValue(); 1137 unsigned StackAlignment = Opts.StackAlignment; 1138 Val.getAsInteger(10, StackAlignment); 1139 Opts.StackAlignment = StackAlignment; 1140 } 1141 1142 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1143 StringRef Val = A->getValue(); 1144 unsigned StackProbeSize = Opts.StackProbeSize; 1145 Val.getAsInteger(0, StackProbeSize); 1146 Opts.StackProbeSize = StackProbeSize; 1147 } 1148 1149 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1150 1151 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1152 StringRef Name = A->getValue(); 1153 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1154 .Case("legacy", CodeGenOptions::Legacy) 1155 .Case("non-legacy", CodeGenOptions::NonLegacy) 1156 .Case("mixed", CodeGenOptions::Mixed) 1157 .Default(~0U); 1158 if (Method == ~0U) { 1159 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1160 Success = false; 1161 } else { 1162 Opts.setObjCDispatchMethod( 1163 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1164 } 1165 } 1166 1167 1168 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1169 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1170 1171 if (Args.getLastArg(OPT_femulated_tls) || 1172 Args.getLastArg(OPT_fno_emulated_tls)) { 1173 Opts.ExplicitEmulatedTLS = true; 1174 Opts.EmulatedTLS = 1175 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1176 } 1177 1178 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1179 StringRef Name = A->getValue(); 1180 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1181 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1182 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1183 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1184 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1185 .Default(~0U); 1186 if (Model == ~0U) { 1187 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1188 Success = false; 1189 } else { 1190 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1191 } 1192 } 1193 1194 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1195 StringRef Val = A->getValue(); 1196 if (Val == "ieee") 1197 Opts.FPDenormalMode = "ieee"; 1198 else if (Val == "preserve-sign") 1199 Opts.FPDenormalMode = "preserve-sign"; 1200 else if (Val == "positive-zero") 1201 Opts.FPDenormalMode = "positive-zero"; 1202 else 1203 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1204 } 1205 1206 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1207 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1208 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1209 } else { 1210 assert(A->getOption().matches(OPT_freg_struct_return)); 1211 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1212 } 1213 } 1214 1215 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1216 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1217 bool NeedLocTracking = false; 1218 1219 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 1220 if (!Opts.OptRecordFile.empty()) 1221 NeedLocTracking = true; 1222 1223 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1224 Opts.OptRecordPasses = A->getValue(); 1225 NeedLocTracking = true; 1226 } 1227 1228 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1229 Opts.OptimizationRemarkPattern = 1230 GenerateOptimizationRemarkRegex(Diags, Args, A); 1231 NeedLocTracking = true; 1232 } 1233 1234 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1235 Opts.OptimizationRemarkMissedPattern = 1236 GenerateOptimizationRemarkRegex(Diags, Args, A); 1237 NeedLocTracking = true; 1238 } 1239 1240 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1241 Opts.OptimizationRemarkAnalysisPattern = 1242 GenerateOptimizationRemarkRegex(Diags, Args, A); 1243 NeedLocTracking = true; 1244 } 1245 1246 Opts.DiagnosticsWithHotness = 1247 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1248 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1249 bool UsingProfile = UsingSampleProfile || 1250 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1251 1252 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1253 // An IR file will contain PGO as metadata 1254 IK.getLanguage() != InputKind::LLVM_IR) 1255 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1256 << "-fdiagnostics-show-hotness"; 1257 1258 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1259 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1260 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1261 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1262 << "-fdiagnostics-hotness-threshold="; 1263 1264 // If the user requested to use a sample profile for PGO, then the 1265 // backend will need to track source location information so the profile 1266 // can be incorporated into the IR. 1267 if (UsingSampleProfile) 1268 NeedLocTracking = true; 1269 1270 // If the user requested a flag that requires source locations available in 1271 // the backend, make sure that the backend tracks source location information. 1272 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1273 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1274 1275 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1276 1277 // Parse -fsanitize-recover= arguments. 1278 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1279 parseSanitizerKinds("-fsanitize-recover=", 1280 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1281 Opts.SanitizeRecover); 1282 parseSanitizerKinds("-fsanitize-trap=", 1283 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1284 Opts.SanitizeTrap); 1285 1286 Opts.CudaGpuBinaryFileName = 1287 Args.getLastArgValue(OPT_fcuda_include_gpubinary); 1288 1289 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1290 1291 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1292 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1293 1294 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1295 1296 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1297 1298 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1299 StringRef SignScope = A->getValue(); 1300 1301 if (SignScope.equals_lower("none")) 1302 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1303 else if (SignScope.equals_lower("all")) 1304 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1305 else if (SignScope.equals_lower("non-leaf")) 1306 Opts.setSignReturnAddress( 1307 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1308 else 1309 Diags.Report(diag::err_drv_invalid_value) 1310 << A->getAsString(Args) << SignScope; 1311 1312 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1313 StringRef SignKey = A->getValue(); 1314 if (!SignScope.empty() && !SignKey.empty()) { 1315 if (SignKey.equals_lower("a_key")) 1316 Opts.setSignReturnAddressKey( 1317 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1318 else if (SignKey.equals_lower("b_key")) 1319 Opts.setSignReturnAddressKey( 1320 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1321 else 1322 Diags.Report(diag::err_drv_invalid_value) 1323 << A->getAsString(Args) << SignKey; 1324 } 1325 } 1326 } 1327 1328 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1329 1330 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1331 1332 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1333 1334 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1335 1336 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1337 1338 return Success; 1339 } 1340 1341 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1342 ArgList &Args) { 1343 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1344 Opts.Targets = Args.getAllArgValues(OPT_MT); 1345 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1346 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1347 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1348 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1349 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1350 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1351 if (Args.hasArg(OPT_show_includes)) { 1352 // Writing both /showIncludes and preprocessor output to stdout 1353 // would produce interleaved output, so use stderr for /showIncludes. 1354 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1355 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1356 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1357 else 1358 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1359 } else { 1360 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1361 } 1362 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1363 Opts.ModuleDependencyOutputDir = 1364 Args.getLastArgValue(OPT_module_dependency_dir); 1365 if (Args.hasArg(OPT_MV)) 1366 Opts.OutputFormat = DependencyOutputFormat::NMake; 1367 // Add sanitizer blacklists as extra dependencies. 1368 // They won't be discovered by the regular preprocessor, so 1369 // we let make / ninja to know about this implicit dependency. 1370 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1371 // Only the -fmodule-file=<file> form. 1372 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1373 StringRef Val = A->getValue(); 1374 if (Val.find('=') == StringRef::npos) 1375 Opts.ExtraDeps.push_back(Val); 1376 } 1377 } 1378 1379 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1380 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1381 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1382 // Support both clang's -f[no-]color-diagnostics and gcc's 1383 // -f[no-]diagnostics-colors[=never|always|auto]. 1384 enum { 1385 Colors_On, 1386 Colors_Off, 1387 Colors_Auto 1388 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1389 for (auto *A : Args) { 1390 const Option &O = A->getOption(); 1391 if (O.matches(options::OPT_fcolor_diagnostics) || 1392 O.matches(options::OPT_fdiagnostics_color)) { 1393 ShowColors = Colors_On; 1394 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1395 O.matches(options::OPT_fno_diagnostics_color)) { 1396 ShowColors = Colors_Off; 1397 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1398 StringRef Value(A->getValue()); 1399 if (Value == "always") 1400 ShowColors = Colors_On; 1401 else if (Value == "never") 1402 ShowColors = Colors_Off; 1403 else if (Value == "auto") 1404 ShowColors = Colors_Auto; 1405 } 1406 } 1407 return ShowColors == Colors_On || 1408 (ShowColors == Colors_Auto && 1409 llvm::sys::Process::StandardErrHasColors()); 1410 } 1411 1412 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1413 DiagnosticsEngine *Diags) { 1414 bool Success = true; 1415 for (const auto &Prefix : VerifyPrefixes) { 1416 // Every prefix must start with a letter and contain only alphanumeric 1417 // characters, hyphens, and underscores. 1418 auto BadChar = llvm::find_if(Prefix, [](char C) { 1419 return !isAlphanumeric(C) && C != '-' && C != '_'; 1420 }); 1421 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1422 Success = false; 1423 if (Diags) { 1424 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1425 Diags->Report(diag::note_drv_verify_prefix_spelling); 1426 } 1427 } 1428 } 1429 return Success; 1430 } 1431 1432 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1433 DiagnosticsEngine *Diags, 1434 bool DefaultDiagColor, bool DefaultShowOpt) { 1435 bool Success = true; 1436 1437 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1438 if (Arg *A = 1439 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1440 Opts.DiagnosticSerializationFile = A->getValue(); 1441 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1442 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1443 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1444 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1445 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1446 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1447 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1448 OPT_fno_show_column, 1449 /*Default=*/true); 1450 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1451 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1452 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1453 Opts.ShowOptionNames = 1454 Args.hasFlag(OPT_fdiagnostics_show_option, 1455 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1456 1457 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1458 1459 // Default behavior is to not to show note include stacks. 1460 Opts.ShowNoteIncludeStack = false; 1461 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1462 OPT_fno_diagnostics_show_note_include_stack)) 1463 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1464 Opts.ShowNoteIncludeStack = true; 1465 1466 StringRef ShowOverloads = 1467 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1468 if (ShowOverloads == "best") 1469 Opts.setShowOverloads(Ovl_Best); 1470 else if (ShowOverloads == "all") 1471 Opts.setShowOverloads(Ovl_All); 1472 else { 1473 Success = false; 1474 if (Diags) 1475 Diags->Report(diag::err_drv_invalid_value) 1476 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1477 << ShowOverloads; 1478 } 1479 1480 StringRef ShowCategory = 1481 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1482 if (ShowCategory == "none") 1483 Opts.ShowCategories = 0; 1484 else if (ShowCategory == "id") 1485 Opts.ShowCategories = 1; 1486 else if (ShowCategory == "name") 1487 Opts.ShowCategories = 2; 1488 else { 1489 Success = false; 1490 if (Diags) 1491 Diags->Report(diag::err_drv_invalid_value) 1492 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1493 << ShowCategory; 1494 } 1495 1496 StringRef Format = 1497 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1498 if (Format == "clang") 1499 Opts.setFormat(DiagnosticOptions::Clang); 1500 else if (Format == "msvc") 1501 Opts.setFormat(DiagnosticOptions::MSVC); 1502 else if (Format == "msvc-fallback") { 1503 Opts.setFormat(DiagnosticOptions::MSVC); 1504 Opts.CLFallbackMode = true; 1505 } else if (Format == "vi") 1506 Opts.setFormat(DiagnosticOptions::Vi); 1507 else { 1508 Success = false; 1509 if (Diags) 1510 Diags->Report(diag::err_drv_invalid_value) 1511 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1512 << Format; 1513 } 1514 1515 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1516 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1517 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1518 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1519 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1520 if (Args.hasArg(OPT_verify)) 1521 Opts.VerifyPrefixes.push_back("expected"); 1522 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1523 // then sort it to prepare for fast lookup using std::binary_search. 1524 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1525 Opts.VerifyDiagnostics = false; 1526 Success = false; 1527 } 1528 else 1529 llvm::sort(Opts.VerifyPrefixes); 1530 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1531 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1532 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1533 Diags, DiagMask); 1534 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1535 DiagMask = DiagnosticLevelMask::All; 1536 Opts.setVerifyIgnoreUnexpected(DiagMask); 1537 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1538 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1539 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1540 Opts.MacroBacktraceLimit = 1541 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1542 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1543 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1544 Args, OPT_ftemplate_backtrace_limit, 1545 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1546 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1547 Args, OPT_fconstexpr_backtrace_limit, 1548 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1549 Opts.SpellCheckingLimit = getLastArgIntValue( 1550 Args, OPT_fspell_checking_limit, 1551 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1552 Opts.SnippetLineLimit = getLastArgIntValue( 1553 Args, OPT_fcaret_diagnostics_max_lines, 1554 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1555 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1556 DiagnosticOptions::DefaultTabStop, Diags); 1557 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1558 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1559 if (Diags) 1560 Diags->Report(diag::warn_ignoring_ftabstop_value) 1561 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1562 } 1563 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1564 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1565 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1566 1567 return Success; 1568 } 1569 1570 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1571 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1572 } 1573 1574 /// Parse the argument to the -ftest-module-file-extension 1575 /// command-line argument. 1576 /// 1577 /// \returns true on error, false on success. 1578 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1579 std::string &BlockName, 1580 unsigned &MajorVersion, 1581 unsigned &MinorVersion, 1582 bool &Hashed, 1583 std::string &UserInfo) { 1584 SmallVector<StringRef, 5> Args; 1585 Arg.split(Args, ':', 5); 1586 if (Args.size() < 5) 1587 return true; 1588 1589 BlockName = Args[0]; 1590 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1591 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1592 if (Args[3].getAsInteger(2, Hashed)) return true; 1593 if (Args.size() > 4) 1594 UserInfo = Args[4]; 1595 return false; 1596 } 1597 1598 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1599 DiagnosticsEngine &Diags, 1600 bool &IsHeaderFile) { 1601 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1602 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1603 switch (A->getOption().getID()) { 1604 default: 1605 llvm_unreachable("Invalid option in group!"); 1606 case OPT_ast_list: 1607 Opts.ProgramAction = frontend::ASTDeclList; break; 1608 case OPT_ast_dump_all_EQ: 1609 case OPT_ast_dump_EQ: { 1610 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1611 .CaseLower("default", ADOF_Default) 1612 .CaseLower("json", ADOF_JSON) 1613 .Default(std::numeric_limits<unsigned>::max()); 1614 1615 if (Val != std::numeric_limits<unsigned>::max()) 1616 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1617 else { 1618 Diags.Report(diag::err_drv_invalid_value) 1619 << A->getAsString(Args) << A->getValue(); 1620 Opts.ASTDumpFormat = ADOF_Default; 1621 } 1622 LLVM_FALLTHROUGH; 1623 } 1624 case OPT_ast_dump: 1625 case OPT_ast_dump_all: 1626 case OPT_ast_dump_lookups: 1627 Opts.ProgramAction = frontend::ASTDump; break; 1628 case OPT_ast_print: 1629 Opts.ProgramAction = frontend::ASTPrint; break; 1630 case OPT_ast_view: 1631 Opts.ProgramAction = frontend::ASTView; break; 1632 case OPT_compiler_options_dump: 1633 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1634 case OPT_dump_raw_tokens: 1635 Opts.ProgramAction = frontend::DumpRawTokens; break; 1636 case OPT_dump_tokens: 1637 Opts.ProgramAction = frontend::DumpTokens; break; 1638 case OPT_S: 1639 Opts.ProgramAction = frontend::EmitAssembly; break; 1640 case OPT_emit_llvm_bc: 1641 Opts.ProgramAction = frontend::EmitBC; break; 1642 case OPT_emit_html: 1643 Opts.ProgramAction = frontend::EmitHTML; break; 1644 case OPT_emit_llvm: 1645 Opts.ProgramAction = frontend::EmitLLVM; break; 1646 case OPT_emit_llvm_only: 1647 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1648 case OPT_emit_codegen_only: 1649 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1650 case OPT_emit_obj: 1651 Opts.ProgramAction = frontend::EmitObj; break; 1652 case OPT_fixit_EQ: 1653 Opts.FixItSuffix = A->getValue(); 1654 LLVM_FALLTHROUGH; 1655 case OPT_fixit: 1656 Opts.ProgramAction = frontend::FixIt; break; 1657 case OPT_emit_module: 1658 Opts.ProgramAction = frontend::GenerateModule; break; 1659 case OPT_emit_module_interface: 1660 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1661 case OPT_emit_header_module: 1662 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1663 case OPT_emit_pch: 1664 Opts.ProgramAction = frontend::GeneratePCH; break; 1665 case OPT_init_only: 1666 Opts.ProgramAction = frontend::InitOnly; break; 1667 case OPT_fsyntax_only: 1668 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1669 case OPT_module_file_info: 1670 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1671 case OPT_verify_pch: 1672 Opts.ProgramAction = frontend::VerifyPCH; break; 1673 case OPT_print_preamble: 1674 Opts.ProgramAction = frontend::PrintPreamble; break; 1675 case OPT_E: 1676 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1677 case OPT_templight_dump: 1678 Opts.ProgramAction = frontend::TemplightDump; break; 1679 case OPT_rewrite_macros: 1680 Opts.ProgramAction = frontend::RewriteMacros; break; 1681 case OPT_rewrite_objc: 1682 Opts.ProgramAction = frontend::RewriteObjC; break; 1683 case OPT_rewrite_test: 1684 Opts.ProgramAction = frontend::RewriteTest; break; 1685 case OPT_analyze: 1686 Opts.ProgramAction = frontend::RunAnalysis; break; 1687 case OPT_migrate: 1688 Opts.ProgramAction = frontend::MigrateSource; break; 1689 case OPT_Eonly: 1690 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1691 } 1692 } 1693 1694 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1695 Opts.Plugins.emplace_back(A->getValue(0)); 1696 Opts.ProgramAction = frontend::PluginAction; 1697 Opts.ActionName = A->getValue(); 1698 } 1699 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1700 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1701 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1702 1703 for (const std::string &Arg : 1704 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1705 std::string BlockName; 1706 unsigned MajorVersion; 1707 unsigned MinorVersion; 1708 bool Hashed; 1709 std::string UserInfo; 1710 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1711 MinorVersion, Hashed, UserInfo)) { 1712 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1713 1714 continue; 1715 } 1716 1717 // Add the testing module file extension. 1718 Opts.ModuleFileExtensions.push_back( 1719 std::make_shared<TestModuleFileExtension>( 1720 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1721 } 1722 1723 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1724 Opts.CodeCompletionAt = 1725 ParsedSourceLocation::FromString(A->getValue()); 1726 if (Opts.CodeCompletionAt.FileName.empty()) 1727 Diags.Report(diag::err_drv_invalid_value) 1728 << A->getAsString(Args) << A->getValue(); 1729 } 1730 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1731 1732 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1733 Opts.Plugins = Args.getAllArgValues(OPT_load); 1734 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1735 Opts.ShowHelp = Args.hasArg(OPT_help); 1736 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1737 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1738 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1739 Opts.ShowVersion = Args.hasArg(OPT_version); 1740 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1741 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1742 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1743 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1744 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1745 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1746 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1747 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1748 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1749 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1750 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1751 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1752 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1753 // Only the -fmodule-file=<file> form. 1754 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1755 StringRef Val = A->getValue(); 1756 if (Val.find('=') == StringRef::npos) 1757 Opts.ModuleFiles.push_back(Val); 1758 } 1759 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1760 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1761 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1762 1763 Opts.CodeCompleteOpts.IncludeMacros 1764 = Args.hasArg(OPT_code_completion_macros); 1765 Opts.CodeCompleteOpts.IncludeCodePatterns 1766 = Args.hasArg(OPT_code_completion_patterns); 1767 Opts.CodeCompleteOpts.IncludeGlobals 1768 = !Args.hasArg(OPT_no_code_completion_globals); 1769 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1770 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1771 Opts.CodeCompleteOpts.IncludeBriefComments 1772 = Args.hasArg(OPT_code_completion_brief_comments); 1773 Opts.CodeCompleteOpts.IncludeFixIts 1774 = Args.hasArg(OPT_code_completion_with_fixits); 1775 1776 Opts.OverrideRecordLayoutsFile 1777 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1778 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple); 1779 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1780 1781 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1782 OPT_arcmt_modify, 1783 OPT_arcmt_migrate)) { 1784 switch (A->getOption().getID()) { 1785 default: 1786 llvm_unreachable("missed a case"); 1787 case OPT_arcmt_check: 1788 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1789 break; 1790 case OPT_arcmt_modify: 1791 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1792 break; 1793 case OPT_arcmt_migrate: 1794 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1795 break; 1796 } 1797 } 1798 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1799 Opts.ARCMTMigrateReportOut 1800 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1801 Opts.ARCMTMigrateEmitARCErrors 1802 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1803 1804 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1805 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1806 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1807 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1808 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1809 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1810 if (Args.hasArg(OPT_objcmt_migrate_property)) 1811 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1812 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1813 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1814 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1815 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1816 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1817 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1818 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1819 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1820 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1821 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1822 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1823 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1824 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1825 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1826 if (Args.hasArg(OPT_objcmt_atomic_property)) 1827 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1828 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1829 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1830 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1831 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1832 if (Args.hasArg(OPT_objcmt_migrate_all)) 1833 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1834 1835 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1836 1837 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1838 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1839 Diags.Report(diag::err_drv_argument_not_allowed_with) 1840 << "ARC migration" << "ObjC migration"; 1841 } 1842 1843 InputKind DashX(InputKind::Unknown); 1844 if (const Arg *A = Args.getLastArg(OPT_x)) { 1845 StringRef XValue = A->getValue(); 1846 1847 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1848 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1849 bool Preprocessed = XValue.consume_back("-cpp-output"); 1850 bool ModuleMap = XValue.consume_back("-module-map"); 1851 IsHeaderFile = 1852 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1853 1854 // Principal languages. 1855 DashX = llvm::StringSwitch<InputKind>(XValue) 1856 .Case("c", InputKind::C) 1857 .Case("cl", InputKind::OpenCL) 1858 .Case("cuda", InputKind::CUDA) 1859 .Case("hip", InputKind::HIP) 1860 .Case("c++", InputKind::CXX) 1861 .Case("objective-c", InputKind::ObjC) 1862 .Case("objective-c++", InputKind::ObjCXX) 1863 .Case("renderscript", InputKind::RenderScript) 1864 .Default(InputKind::Unknown); 1865 1866 // "objc[++]-cpp-output" is an acceptable synonym for 1867 // "objective-c[++]-cpp-output". 1868 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1869 DashX = llvm::StringSwitch<InputKind>(XValue) 1870 .Case("objc", InputKind::ObjC) 1871 .Case("objc++", InputKind::ObjCXX) 1872 .Default(InputKind::Unknown); 1873 1874 // Some special cases cannot be combined with suffixes. 1875 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1876 DashX = llvm::StringSwitch<InputKind>(XValue) 1877 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1878 .Case("assembler-with-cpp", InputKind::Asm) 1879 .Cases("ast", "pcm", 1880 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1881 .Case("ir", InputKind::LLVM_IR) 1882 .Default(InputKind::Unknown); 1883 1884 if (DashX.isUnknown()) 1885 Diags.Report(diag::err_drv_invalid_value) 1886 << A->getAsString(Args) << A->getValue(); 1887 1888 if (Preprocessed) 1889 DashX = DashX.getPreprocessed(); 1890 if (ModuleMap) 1891 DashX = DashX.withFormat(InputKind::ModuleMap); 1892 } 1893 1894 // '-' is the default input if none is given. 1895 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1896 Opts.Inputs.clear(); 1897 if (Inputs.empty()) 1898 Inputs.push_back("-"); 1899 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1900 InputKind IK = DashX; 1901 if (IK.isUnknown()) { 1902 IK = FrontendOptions::getInputKindForExtension( 1903 StringRef(Inputs[i]).rsplit('.').second); 1904 // FIXME: Warn on this? 1905 if (IK.isUnknown()) 1906 IK = InputKind::C; 1907 // FIXME: Remove this hack. 1908 if (i == 0) 1909 DashX = IK; 1910 } 1911 1912 // The -emit-module action implicitly takes a module map. 1913 if (Opts.ProgramAction == frontend::GenerateModule && 1914 IK.getFormat() == InputKind::Source) 1915 IK = IK.withFormat(InputKind::ModuleMap); 1916 1917 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1918 } 1919 1920 return DashX; 1921 } 1922 1923 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1924 void *MainAddr) { 1925 std::string ClangExecutable = 1926 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1927 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 1928 } 1929 1930 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1931 const std::string &WorkingDir) { 1932 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1933 Opts.Verbose = Args.hasArg(OPT_v); 1934 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1935 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1936 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1937 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1938 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1939 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1940 1941 // Canonicalize -fmodules-cache-path before storing it. 1942 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1943 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1944 if (WorkingDir.empty()) 1945 llvm::sys::fs::make_absolute(P); 1946 else 1947 llvm::sys::fs::make_absolute(WorkingDir, P); 1948 } 1949 llvm::sys::path::remove_dots(P); 1950 Opts.ModuleCachePath = P.str(); 1951 1952 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1953 // Only the -fmodule-file=<name>=<file> form. 1954 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1955 StringRef Val = A->getValue(); 1956 if (Val.find('=') != StringRef::npos) 1957 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1958 } 1959 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 1960 Opts.AddPrebuiltModulePath(A->getValue()); 1961 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1962 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1963 Opts.ModulesValidateDiagnosticOptions = 1964 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1965 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1966 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1967 Opts.ModuleCachePruneInterval = 1968 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1969 Opts.ModuleCachePruneAfter = 1970 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1971 Opts.ModulesValidateOncePerBuildSession = 1972 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1973 Opts.BuildSessionTimestamp = 1974 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1975 Opts.ModulesValidateSystemHeaders = 1976 Args.hasArg(OPT_fmodules_validate_system_headers); 1977 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1978 Opts.ModuleFormat = A->getValue(); 1979 1980 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1981 StringRef MacroDef = A->getValue(); 1982 Opts.ModulesIgnoreMacros.insert( 1983 llvm::CachedHashString(MacroDef.split('=').first)); 1984 } 1985 1986 // Add -I..., -F..., and -index-header-map options in order. 1987 bool IsIndexHeaderMap = false; 1988 bool IsSysrootSpecified = 1989 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1990 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1991 if (A->getOption().matches(OPT_index_header_map)) { 1992 // -index-header-map applies to the next -I or -F. 1993 IsIndexHeaderMap = true; 1994 continue; 1995 } 1996 1997 frontend::IncludeDirGroup Group = 1998 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1999 2000 bool IsFramework = A->getOption().matches(OPT_F); 2001 std::string Path = A->getValue(); 2002 2003 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2004 SmallString<32> Buffer; 2005 llvm::sys::path::append(Buffer, Opts.Sysroot, 2006 llvm::StringRef(A->getValue()).substr(1)); 2007 Path = Buffer.str(); 2008 } 2009 2010 Opts.AddPath(Path, Group, IsFramework, 2011 /*IgnoreSysroot*/ true); 2012 IsIndexHeaderMap = false; 2013 } 2014 2015 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2016 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2017 for (const auto *A : 2018 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2019 if (A->getOption().matches(OPT_iprefix)) 2020 Prefix = A->getValue(); 2021 else if (A->getOption().matches(OPT_iwithprefix)) 2022 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2023 else 2024 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2025 } 2026 2027 for (const auto *A : Args.filtered(OPT_idirafter)) 2028 Opts.AddPath(A->getValue(), frontend::After, false, true); 2029 for (const auto *A : Args.filtered(OPT_iquote)) 2030 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2031 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2032 Opts.AddPath(A->getValue(), frontend::System, false, 2033 !A->getOption().matches(OPT_iwithsysroot)); 2034 for (const auto *A : Args.filtered(OPT_iframework)) 2035 Opts.AddPath(A->getValue(), frontend::System, true, true); 2036 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2037 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2038 /*IgnoreSysRoot=*/false); 2039 2040 // Add the paths for the various language specific isystem flags. 2041 for (const auto *A : Args.filtered(OPT_c_isystem)) 2042 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2043 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2044 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2045 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2046 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2047 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2048 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2049 2050 // Add the internal paths from a driver that detects standard include paths. 2051 for (const auto *A : 2052 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2053 frontend::IncludeDirGroup Group = frontend::System; 2054 if (A->getOption().matches(OPT_internal_externc_isystem)) 2055 Group = frontend::ExternCSystem; 2056 Opts.AddPath(A->getValue(), Group, false, true); 2057 } 2058 2059 // Add the path prefixes which are implicitly treated as being system headers. 2060 for (const auto *A : 2061 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2062 Opts.AddSystemHeaderPrefix( 2063 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2064 2065 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2066 Opts.AddVFSOverlayFile(A->getValue()); 2067 } 2068 2069 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2070 const llvm::Triple &T, 2071 PreprocessorOptions &PPOpts, 2072 LangStandard::Kind LangStd) { 2073 // Set some properties which depend solely on the input kind; it would be nice 2074 // to move these to the language standard, and have the driver resolve the 2075 // input kind + language standard. 2076 // 2077 // FIXME: Perhaps a better model would be for a single source file to have 2078 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2079 // simultaneously active? 2080 if (IK.getLanguage() == InputKind::Asm) { 2081 Opts.AsmPreprocessor = 1; 2082 } else if (IK.isObjectiveC()) { 2083 Opts.ObjC = 1; 2084 } 2085 2086 if (LangStd == LangStandard::lang_unspecified) { 2087 // Based on the base language, pick one. 2088 switch (IK.getLanguage()) { 2089 case InputKind::Unknown: 2090 case InputKind::LLVM_IR: 2091 llvm_unreachable("Invalid input kind!"); 2092 case InputKind::OpenCL: 2093 LangStd = LangStandard::lang_opencl10; 2094 break; 2095 case InputKind::CUDA: 2096 LangStd = LangStandard::lang_cuda; 2097 break; 2098 case InputKind::Asm: 2099 case InputKind::C: 2100 #if defined(CLANG_DEFAULT_STD_C) 2101 LangStd = CLANG_DEFAULT_STD_C; 2102 #else 2103 // The PS4 uses C99 as the default C standard. 2104 if (T.isPS4()) 2105 LangStd = LangStandard::lang_gnu99; 2106 else 2107 LangStd = LangStandard::lang_gnu11; 2108 #endif 2109 break; 2110 case InputKind::ObjC: 2111 #if defined(CLANG_DEFAULT_STD_C) 2112 LangStd = CLANG_DEFAULT_STD_C; 2113 #else 2114 LangStd = LangStandard::lang_gnu11; 2115 #endif 2116 break; 2117 case InputKind::CXX: 2118 case InputKind::ObjCXX: 2119 #if defined(CLANG_DEFAULT_STD_CXX) 2120 LangStd = CLANG_DEFAULT_STD_CXX; 2121 #else 2122 LangStd = LangStandard::lang_gnucxx14; 2123 #endif 2124 break; 2125 case InputKind::RenderScript: 2126 LangStd = LangStandard::lang_c99; 2127 break; 2128 case InputKind::HIP: 2129 LangStd = LangStandard::lang_hip; 2130 break; 2131 } 2132 } 2133 2134 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2135 Opts.LineComment = Std.hasLineComments(); 2136 Opts.C99 = Std.isC99(); 2137 Opts.C11 = Std.isC11(); 2138 Opts.C17 = Std.isC17(); 2139 Opts.C2x = Std.isC2x(); 2140 Opts.CPlusPlus = Std.isCPlusPlus(); 2141 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2142 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2143 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2144 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2145 Opts.Digraphs = Std.hasDigraphs(); 2146 Opts.GNUMode = Std.isGNUMode(); 2147 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2148 Opts.HexFloats = Std.hasHexFloats(); 2149 Opts.ImplicitInt = Std.hasImplicitInt(); 2150 2151 // Set OpenCL Version. 2152 Opts.OpenCL = Std.isOpenCL(); 2153 if (LangStd == LangStandard::lang_opencl10) 2154 Opts.OpenCLVersion = 100; 2155 else if (LangStd == LangStandard::lang_opencl11) 2156 Opts.OpenCLVersion = 110; 2157 else if (LangStd == LangStandard::lang_opencl12) 2158 Opts.OpenCLVersion = 120; 2159 else if (LangStd == LangStandard::lang_opencl20) 2160 Opts.OpenCLVersion = 200; 2161 else if (LangStd == LangStandard::lang_openclcpp) 2162 Opts.OpenCLCPlusPlusVersion = 100; 2163 2164 // OpenCL has some additional defaults. 2165 if (Opts.OpenCL) { 2166 Opts.AltiVec = 0; 2167 Opts.ZVector = 0; 2168 Opts.LaxVectorConversions = 0; 2169 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2170 Opts.NativeHalfType = 1; 2171 Opts.NativeHalfArgsAndReturns = 1; 2172 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2173 // Include default header file for OpenCL. 2174 if (Opts.IncludeDefaultHeader) { 2175 PPOpts.Includes.push_back("opencl-c.h"); 2176 } 2177 } 2178 2179 Opts.HIP = IK.getLanguage() == InputKind::HIP; 2180 Opts.CUDA = IK.getLanguage() == InputKind::CUDA || Opts.HIP; 2181 if (Opts.CUDA) 2182 // Set default FP_CONTRACT to FAST. 2183 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2184 2185 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 2186 if (Opts.RenderScript) { 2187 Opts.NativeHalfType = 1; 2188 Opts.NativeHalfArgsAndReturns = 1; 2189 } 2190 2191 // OpenCL and C++ both have bool, true, false keywords. 2192 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2193 2194 // OpenCL has half keyword 2195 Opts.Half = Opts.OpenCL; 2196 2197 // C++ has wchar_t keyword. 2198 Opts.WChar = Opts.CPlusPlus; 2199 2200 Opts.GNUKeywords = Opts.GNUMode; 2201 Opts.CXXOperatorNames = Opts.CPlusPlus; 2202 2203 Opts.AlignedAllocation = Opts.CPlusPlus17; 2204 2205 Opts.DollarIdents = !Opts.AsmPreprocessor; 2206 2207 // Enable [[]] attributes in C++11 and C2x by default. 2208 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2209 } 2210 2211 /// Attempt to parse a visibility value out of the given argument. 2212 static Visibility parseVisibility(Arg *arg, ArgList &args, 2213 DiagnosticsEngine &diags) { 2214 StringRef value = arg->getValue(); 2215 if (value == "default") { 2216 return DefaultVisibility; 2217 } else if (value == "hidden" || value == "internal") { 2218 return HiddenVisibility; 2219 } else if (value == "protected") { 2220 // FIXME: diagnose if target does not support protected visibility 2221 return ProtectedVisibility; 2222 } 2223 2224 diags.Report(diag::err_drv_invalid_value) 2225 << arg->getAsString(args) << value; 2226 return DefaultVisibility; 2227 } 2228 2229 /// Check if input file kind and language standard are compatible. 2230 static bool IsInputCompatibleWithStandard(InputKind IK, 2231 const LangStandard &S) { 2232 switch (IK.getLanguage()) { 2233 case InputKind::Unknown: 2234 case InputKind::LLVM_IR: 2235 llvm_unreachable("should not parse language flags for this input"); 2236 2237 case InputKind::C: 2238 case InputKind::ObjC: 2239 case InputKind::RenderScript: 2240 return S.getLanguage() == InputKind::C; 2241 2242 case InputKind::OpenCL: 2243 return S.getLanguage() == InputKind::OpenCL; 2244 2245 case InputKind::CXX: 2246 case InputKind::ObjCXX: 2247 return S.getLanguage() == InputKind::CXX; 2248 2249 case InputKind::CUDA: 2250 // FIXME: What -std= values should be permitted for CUDA compilations? 2251 return S.getLanguage() == InputKind::CUDA || 2252 S.getLanguage() == InputKind::CXX; 2253 2254 case InputKind::HIP: 2255 return S.getLanguage() == InputKind::CXX || 2256 S.getLanguage() == InputKind::HIP; 2257 2258 case InputKind::Asm: 2259 // Accept (and ignore) all -std= values. 2260 // FIXME: The -std= value is not ignored; it affects the tokenization 2261 // and preprocessing rules if we're preprocessing this asm input. 2262 return true; 2263 } 2264 2265 llvm_unreachable("unexpected input language"); 2266 } 2267 2268 /// Get language name for given input kind. 2269 static const StringRef GetInputKindName(InputKind IK) { 2270 switch (IK.getLanguage()) { 2271 case InputKind::C: 2272 return "C"; 2273 case InputKind::ObjC: 2274 return "Objective-C"; 2275 case InputKind::CXX: 2276 return "C++"; 2277 case InputKind::ObjCXX: 2278 return "Objective-C++"; 2279 case InputKind::OpenCL: 2280 return "OpenCL"; 2281 case InputKind::CUDA: 2282 return "CUDA"; 2283 case InputKind::RenderScript: 2284 return "RenderScript"; 2285 case InputKind::HIP: 2286 return "HIP"; 2287 2288 case InputKind::Asm: 2289 return "Asm"; 2290 case InputKind::LLVM_IR: 2291 return "LLVM IR"; 2292 2293 case InputKind::Unknown: 2294 break; 2295 } 2296 llvm_unreachable("unknown input language"); 2297 } 2298 2299 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2300 const TargetOptions &TargetOpts, 2301 PreprocessorOptions &PPOpts, 2302 DiagnosticsEngine &Diags) { 2303 // FIXME: Cleanup per-file based stuff. 2304 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2305 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2306 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2307 #define LANGSTANDARD(id, name, lang, desc, features) \ 2308 .Case(name, LangStandard::lang_##id) 2309 #define LANGSTANDARD_ALIAS(id, alias) \ 2310 .Case(alias, LangStandard::lang_##id) 2311 #include "clang/Frontend/LangStandards.def" 2312 .Default(LangStandard::lang_unspecified); 2313 if (LangStd == LangStandard::lang_unspecified) { 2314 Diags.Report(diag::err_drv_invalid_value) 2315 << A->getAsString(Args) << A->getValue(); 2316 // Report supported standards with short description. 2317 for (unsigned KindValue = 0; 2318 KindValue != LangStandard::lang_unspecified; 2319 ++KindValue) { 2320 const LangStandard &Std = LangStandard::getLangStandardForKind( 2321 static_cast<LangStandard::Kind>(KindValue)); 2322 if (IsInputCompatibleWithStandard(IK, Std)) { 2323 auto Diag = Diags.Report(diag::note_drv_use_standard); 2324 Diag << Std.getName() << Std.getDescription(); 2325 unsigned NumAliases = 0; 2326 #define LANGSTANDARD(id, name, lang, desc, features) 2327 #define LANGSTANDARD_ALIAS(id, alias) \ 2328 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2329 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2330 #include "clang/Frontend/LangStandards.def" 2331 Diag << NumAliases; 2332 #define LANGSTANDARD(id, name, lang, desc, features) 2333 #define LANGSTANDARD_ALIAS(id, alias) \ 2334 if (KindValue == LangStandard::lang_##id) Diag << alias; 2335 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2336 #include "clang/Frontend/LangStandards.def" 2337 } 2338 } 2339 } else { 2340 // Valid standard, check to make sure language and standard are 2341 // compatible. 2342 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2343 if (!IsInputCompatibleWithStandard(IK, Std)) { 2344 Diags.Report(diag::err_drv_argument_not_allowed_with) 2345 << A->getAsString(Args) << GetInputKindName(IK); 2346 } 2347 } 2348 } 2349 2350 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2351 Opts.DllExportInlines = false; 2352 2353 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2354 StringRef Name = A->getValue(); 2355 if (Name == "full" || Name == "branch") { 2356 Opts.CFProtectionBranch = 1; 2357 } 2358 } 2359 // -cl-std only applies for OpenCL language standards. 2360 // Override the -std option in this case. 2361 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2362 LangStandard::Kind OpenCLLangStd 2363 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2364 .Cases("cl", "CL", LangStandard::lang_opencl10) 2365 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2366 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2367 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2368 .Case("c++", LangStandard::lang_openclcpp) 2369 .Default(LangStandard::lang_unspecified); 2370 2371 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2372 Diags.Report(diag::err_drv_invalid_value) 2373 << A->getAsString(Args) << A->getValue(); 2374 } 2375 else 2376 LangStd = OpenCLLangStd; 2377 } 2378 2379 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2380 2381 llvm::Triple T(TargetOpts.Triple); 2382 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2383 2384 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2385 // This option should be deprecated for CL > 1.0 because 2386 // this option was added for compatibility with OpenCL 1.0. 2387 if (Args.getLastArg(OPT_cl_strict_aliasing) 2388 && Opts.OpenCLVersion > 100) { 2389 Diags.Report(diag::warn_option_invalid_ocl_version) 2390 << Opts.getOpenCLVersionTuple().getAsString() 2391 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2392 } 2393 2394 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2395 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2396 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2397 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2398 // name, as it doesn't seem a useful distinction. 2399 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2400 Opts.GNUKeywords); 2401 2402 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2403 2404 if (Args.hasArg(OPT_fno_operator_names)) 2405 Opts.CXXOperatorNames = 0; 2406 2407 if (Args.hasArg(OPT_fcuda_is_device)) 2408 Opts.CUDAIsDevice = 1; 2409 2410 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2411 Opts.CUDAAllowVariadicFunctions = 1; 2412 2413 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2414 Opts.CUDAHostDeviceConstexpr = 0; 2415 2416 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2417 Opts.CUDADeviceApproxTranscendentals = 1; 2418 2419 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2420 2421 if (Opts.ObjC) { 2422 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2423 StringRef value = arg->getValue(); 2424 if (Opts.ObjCRuntime.tryParse(value)) 2425 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2426 } 2427 2428 if (Args.hasArg(OPT_fobjc_gc_only)) 2429 Opts.setGC(LangOptions::GCOnly); 2430 else if (Args.hasArg(OPT_fobjc_gc)) 2431 Opts.setGC(LangOptions::HybridGC); 2432 else if (Args.hasArg(OPT_fobjc_arc)) { 2433 Opts.ObjCAutoRefCount = 1; 2434 if (!Opts.ObjCRuntime.allowsARC()) 2435 Diags.Report(diag::err_arc_unsupported_on_runtime); 2436 } 2437 2438 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2439 // whether the feature is actually enabled. This is predominantly 2440 // determined by -fobjc-runtime, but we allow it to be overridden 2441 // from the command line for testing purposes. 2442 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2443 Opts.ObjCWeakRuntime = 1; 2444 else 2445 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2446 2447 // ObjCWeak determines whether __weak is actually enabled. 2448 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2449 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2450 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2451 assert(!Opts.ObjCWeak); 2452 } else if (Opts.getGC() != LangOptions::NonGC) { 2453 Diags.Report(diag::err_objc_weak_with_gc); 2454 } else if (!Opts.ObjCWeakRuntime) { 2455 Diags.Report(diag::err_objc_weak_unsupported); 2456 } else { 2457 Opts.ObjCWeak = 1; 2458 } 2459 } else if (Opts.ObjCAutoRefCount) { 2460 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2461 } 2462 2463 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2464 Opts.ObjCInferRelatedResultType = 0; 2465 2466 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2467 Opts.ObjCSubscriptingLegacyRuntime = 2468 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2469 } 2470 2471 if (Args.hasArg(OPT_fgnu89_inline)) { 2472 if (Opts.CPlusPlus) 2473 Diags.Report(diag::err_drv_argument_not_allowed_with) 2474 << "-fgnu89-inline" << GetInputKindName(IK); 2475 else 2476 Opts.GNUInline = 1; 2477 } 2478 2479 if (Args.hasArg(OPT_fapple_kext)) { 2480 if (!Opts.CPlusPlus) 2481 Diags.Report(diag::warn_c_kext); 2482 else 2483 Opts.AppleKext = 1; 2484 } 2485 2486 if (Args.hasArg(OPT_print_ivar_layout)) 2487 Opts.ObjCGCBitmapPrint = 1; 2488 2489 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2490 Opts.NoConstantCFStrings = 1; 2491 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2492 Opts.CFRuntime = 2493 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2494 .Cases("unspecified", "standalone", "objc", 2495 LangOptions::CoreFoundationABI::ObjectiveC) 2496 .Cases("swift", "swift-5.0", 2497 LangOptions::CoreFoundationABI::Swift5_0) 2498 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2499 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2500 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2501 2502 if (Args.hasArg(OPT_fzvector)) 2503 Opts.ZVector = 1; 2504 2505 if (Args.hasArg(OPT_pthread)) 2506 Opts.POSIXThreads = 1; 2507 2508 // The value-visibility mode defaults to "default". 2509 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2510 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2511 } else { 2512 Opts.setValueVisibilityMode(DefaultVisibility); 2513 } 2514 2515 // The type-visibility mode defaults to the value-visibility mode. 2516 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2517 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2518 } else { 2519 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2520 } 2521 2522 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2523 Opts.InlineVisibilityHidden = 1; 2524 2525 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2526 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2527 2528 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2529 Opts.SetVisibilityForExternDecls = 1; 2530 2531 if (Args.hasArg(OPT_ftrapv)) { 2532 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2533 // Set the handler, if one is specified. 2534 Opts.OverflowHandler = 2535 Args.getLastArgValue(OPT_ftrapv_handler); 2536 } 2537 else if (Args.hasArg(OPT_fwrapv)) 2538 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2539 2540 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2541 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2542 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2543 Opts.MSCompatibilityVersion = 0; 2544 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2545 VersionTuple VT; 2546 if (VT.tryParse(A->getValue())) 2547 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2548 << A->getValue(); 2549 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2550 VT.getMinor().getValueOr(0) * 100000 + 2551 VT.getSubminor().getValueOr(0); 2552 } 2553 2554 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2555 // is specified, or -std is set to a conforming mode. 2556 // Trigraphs are disabled by default in c++1z onwards. 2557 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2558 Opts.Trigraphs = 2559 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2560 2561 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2562 OPT_fno_dollars_in_identifiers, 2563 Opts.DollarIdents); 2564 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2565 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2566 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2567 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2568 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2569 Opts.ConstStrings); 2570 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2571 Opts.LaxVectorConversions = 0; 2572 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2573 Opts.ThreadsafeStatics = 0; 2574 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2575 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2576 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2577 2578 // -ffixed-point 2579 Opts.FixedPoint = 2580 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2581 !Opts.CPlusPlus; 2582 Opts.PaddingOnUnsignedFixedPoint = 2583 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2584 OPT_fno_padding_on_unsigned_fixed_point, 2585 /*Default=*/false) && 2586 Opts.FixedPoint; 2587 2588 // Handle exception personalities 2589 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2590 options::OPT_fseh_exceptions, 2591 options::OPT_fdwarf_exceptions); 2592 if (A) { 2593 const Option &Opt = A->getOption(); 2594 llvm::Triple T(TargetOpts.Triple); 2595 if (T.isWindowsMSVCEnvironment()) 2596 Diags.Report(diag::err_fe_invalid_exception_model) 2597 << Opt.getName() << T.str(); 2598 2599 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2600 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2601 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2602 } 2603 2604 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2605 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2606 2607 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2608 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2609 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2610 && Opts.OpenCLVersion == 200); 2611 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2612 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2613 2614 Opts.DoubleSquareBracketAttributes = 2615 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2616 OPT_fno_double_square_bracket_attributes, 2617 Opts.DoubleSquareBracketAttributes); 2618 2619 Opts.CPlusPlusModules = Opts.CPlusPlus2a; 2620 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2621 Opts.Modules = 2622 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2623 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2624 Opts.ModulesDeclUse = 2625 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2626 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2627 // enter a different module (eg, when building a header unit). 2628 Opts.ModulesLocalVisibility = 2629 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2630 Opts.CPlusPlusModules; 2631 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2632 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2633 Opts.ModulesSearchAll = Opts.Modules && 2634 !Args.hasArg(OPT_fno_modules_search_all) && 2635 Args.hasArg(OPT_fmodules_search_all); 2636 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2637 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2638 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2639 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2640 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2641 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2642 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2643 .Case("char", 1) 2644 .Case("short", 2) 2645 .Case("int", 4) 2646 .Default(0); 2647 if (Opts.WCharSize == 0) 2648 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2649 } 2650 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2651 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2652 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2653 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2654 if (!Opts.NoBuiltin) 2655 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2656 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2657 Opts.RelaxedTemplateTemplateArgs = 2658 Args.hasArg(OPT_frelaxed_template_template_args); 2659 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2660 Opts.AlignedAllocation = 2661 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2662 Opts.AlignedAllocation); 2663 Opts.AlignedAllocationUnavailable = 2664 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2665 Opts.NewAlignOverride = 2666 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2667 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2668 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2669 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2670 << A->getValue(); 2671 Opts.NewAlignOverride = 0; 2672 } 2673 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2674 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2675 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2676 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2677 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2678 Opts.InstantiationDepth = 2679 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2680 Opts.ArrowDepth = 2681 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2682 Opts.ConstexprCallDepth = 2683 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2684 Opts.ConstexprStepLimit = 2685 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2686 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2687 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2688 Opts.NumLargeByValueCopy = 2689 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2690 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2691 Opts.ObjCConstantStringClass = 2692 Args.getLastArgValue(OPT_fconstant_string_class); 2693 Opts.ObjCDefaultSynthProperties = 2694 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2695 Opts.EncodeExtendedBlockSig = 2696 Args.hasArg(OPT_fencode_extended_block_signature); 2697 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2698 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2699 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2700 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2701 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2702 Opts.ROPI = Args.hasArg(OPT_fropi); 2703 Opts.RWPI = Args.hasArg(OPT_frwpi); 2704 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2705 Opts.Static = Args.hasArg(OPT_static_define); 2706 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2707 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2708 || Args.hasArg(OPT_fdump_record_layouts); 2709 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2710 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2711 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2712 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2713 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2714 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2715 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2716 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2717 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2718 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2719 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2720 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2721 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ); 2722 Opts.CurrentModule = Opts.ModuleName; 2723 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2724 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2725 llvm::sort(Opts.ModuleFeatures); 2726 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2727 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2728 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2729 // is enabled. 2730 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2731 | Opts.NativeHalfArgsAndReturns; 2732 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2733 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2734 2735 // __declspec is enabled by default for the PS4 by the driver, and also 2736 // enabled for Microsoft Extensions or Borland Extensions, here. 2737 // 2738 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2739 // CUDA extension. However, it is required for supporting 2740 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2741 // been rewritten in terms of something more generic, remove the Opts.CUDA 2742 // term here. 2743 Opts.DeclSpecKeyword = 2744 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2745 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2746 2747 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2748 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2749 .Case("target", LangOptions::ASMM_Target) 2750 .Case("no", LangOptions::ASMM_Off) 2751 .Case("yes", LangOptions::ASMM_On) 2752 .Default(255)) { 2753 default: 2754 Diags.Report(diag::err_drv_invalid_value) 2755 << "-faddress-space-map-mangling=" << A->getValue(); 2756 break; 2757 case LangOptions::ASMM_Target: 2758 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2759 break; 2760 case LangOptions::ASMM_On: 2761 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2762 break; 2763 case LangOptions::ASMM_Off: 2764 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2765 break; 2766 } 2767 } 2768 2769 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2770 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2771 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2772 A->getValue()) 2773 .Case("single", 2774 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2775 .Case("multiple", 2776 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2777 .Case("virtual", 2778 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2779 .Default(LangOptions::PPTMK_BestCase); 2780 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2781 Diags.Report(diag::err_drv_invalid_value) 2782 << "-fms-memptr-rep=" << A->getValue(); 2783 2784 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2785 } 2786 2787 // Check for MS default calling conventions being specified. 2788 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2789 LangOptions::DefaultCallingConvention DefaultCC = 2790 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2791 .Case("cdecl", LangOptions::DCC_CDecl) 2792 .Case("fastcall", LangOptions::DCC_FastCall) 2793 .Case("stdcall", LangOptions::DCC_StdCall) 2794 .Case("vectorcall", LangOptions::DCC_VectorCall) 2795 .Case("regcall", LangOptions::DCC_RegCall) 2796 .Default(LangOptions::DCC_None); 2797 if (DefaultCC == LangOptions::DCC_None) 2798 Diags.Report(diag::err_drv_invalid_value) 2799 << "-fdefault-calling-conv=" << A->getValue(); 2800 2801 llvm::Triple T(TargetOpts.Triple); 2802 llvm::Triple::ArchType Arch = T.getArch(); 2803 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2804 DefaultCC == LangOptions::DCC_StdCall) && 2805 Arch != llvm::Triple::x86; 2806 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2807 DefaultCC == LangOptions::DCC_RegCall) && 2808 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2809 if (emitError) 2810 Diags.Report(diag::err_drv_argument_not_allowed_with) 2811 << A->getSpelling() << T.getTriple(); 2812 else 2813 Opts.setDefaultCallingConv(DefaultCC); 2814 } 2815 2816 // -mrtd option 2817 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2818 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2819 Diags.Report(diag::err_drv_argument_not_allowed_with) 2820 << A->getSpelling() << "-fdefault-calling-conv"; 2821 else { 2822 llvm::Triple T(TargetOpts.Triple); 2823 if (T.getArch() != llvm::Triple::x86) 2824 Diags.Report(diag::err_drv_argument_not_allowed_with) 2825 << A->getSpelling() << T.getTriple(); 2826 else 2827 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2828 } 2829 } 2830 2831 // Check if -fopenmp is specified. 2832 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2833 // Check if -fopenmp-simd is specified. 2834 bool IsSimdSpecified = 2835 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2836 /*Default=*/false); 2837 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2838 Opts.OpenMPUseTLS = 2839 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2840 Opts.OpenMPIsDevice = 2841 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2842 bool IsTargetSpecified = 2843 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2844 2845 if (Opts.OpenMP || Opts.OpenMPSimd) { 2846 if (int Version = getLastArgIntValue( 2847 Args, OPT_fopenmp_version_EQ, 2848 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 2849 Opts.OpenMP = Version; 2850 else if (IsSimdSpecified || IsTargetSpecified) 2851 Opts.OpenMP = 45; 2852 // Provide diagnostic when a given target is not expected to be an OpenMP 2853 // device or host. 2854 if (!Opts.OpenMPIsDevice) { 2855 switch (T.getArch()) { 2856 default: 2857 break; 2858 // Add unsupported host targets here: 2859 case llvm::Triple::nvptx: 2860 case llvm::Triple::nvptx64: 2861 Diags.Report(diag::err_drv_omp_host_target_not_supported) 2862 << TargetOpts.Triple; 2863 break; 2864 } 2865 } 2866 } 2867 2868 // Set the flag to prevent the implementation from emitting device exception 2869 // handling code for those requiring so. 2870 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 2871 Opts.Exceptions = 0; 2872 Opts.CXXExceptions = 0; 2873 } 2874 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2875 Opts.OpenMPCUDANumSMs = 2876 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 2877 Opts.OpenMPCUDANumSMs, Diags); 2878 Opts.OpenMPCUDABlocksPerSM = 2879 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 2880 Opts.OpenMPCUDABlocksPerSM, Diags); 2881 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 2882 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 2883 Opts.OpenMPCUDAReductionBufNum, Diags); 2884 } 2885 2886 // Prevent auto-widening the representation of loop counters during an 2887 // OpenMP collapse clause. 2888 Opts.OpenMPOptimisticCollapse = 2889 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 2890 2891 // Get the OpenMP target triples if any. 2892 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2893 2894 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2895 llvm::Triple TT(A->getValue(i)); 2896 2897 if (TT.getArch() == llvm::Triple::UnknownArch || 2898 !(TT.getArch() == llvm::Triple::ppc || 2899 TT.getArch() == llvm::Triple::ppc64 || 2900 TT.getArch() == llvm::Triple::ppc64le || 2901 TT.getArch() == llvm::Triple::nvptx || 2902 TT.getArch() == llvm::Triple::nvptx64 || 2903 TT.getArch() == llvm::Triple::x86 || 2904 TT.getArch() == llvm::Triple::x86_64)) 2905 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 2906 else 2907 Opts.OMPTargetTriples.push_back(TT); 2908 } 2909 } 2910 2911 // Get OpenMP host file path if any and report if a non existent file is 2912 // found 2913 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2914 Opts.OMPHostIRFile = A->getValue(); 2915 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2916 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 2917 << Opts.OMPHostIRFile; 2918 } 2919 2920 Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device); 2921 2922 // Set CUDA mode for OpenMP target NVPTX if specified in options 2923 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 2924 Args.hasArg(options::OPT_fopenmp_cuda_mode); 2925 2926 // Set CUDA mode for OpenMP target NVPTX if specified in options 2927 Opts.OpenMPCUDAForceFullRuntime = 2928 Opts.OpenMPIsDevice && T.isNVPTX() && 2929 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 2930 2931 // Record whether the __DEPRECATED define was requested. 2932 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2933 OPT_fno_deprecated_macro, 2934 Opts.Deprecated); 2935 2936 // FIXME: Eliminate this dependency. 2937 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2938 OptSize = getOptimizationLevelSize(Args); 2939 Opts.Optimize = Opt != 0; 2940 Opts.OptimizeSize = OptSize != 0; 2941 2942 // This is the __NO_INLINE__ define, which just depends on things like the 2943 // optimization level and -fno-inline, not actually whether the backend has 2944 // inlining enabled. 2945 Opts.NoInlineDefine = !Opts.Optimize; 2946 if (Arg *InlineArg = Args.getLastArg( 2947 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2948 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2949 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2950 Opts.NoInlineDefine = true; 2951 2952 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2953 Args.hasArg(OPT_cl_fast_relaxed_math); 2954 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2955 Args.hasArg(OPT_cl_finite_math_only) || 2956 Args.hasArg(OPT_cl_fast_relaxed_math); 2957 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2958 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2959 Args.hasArg(OPT_cl_fast_relaxed_math); 2960 2961 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2962 StringRef Val = A->getValue(); 2963 if (Val == "fast") 2964 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2965 else if (Val == "on") 2966 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2967 else if (Val == "off") 2968 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2969 else 2970 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2971 } 2972 2973 Opts.RetainCommentsFromSystemHeaders = 2974 Args.hasArg(OPT_fretain_comments_from_system_headers); 2975 2976 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2977 switch (SSP) { 2978 default: 2979 Diags.Report(diag::err_drv_invalid_value) 2980 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2981 break; 2982 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2983 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2984 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2985 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2986 } 2987 2988 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 2989 StringRef Val = A->getValue(); 2990 if (Val == "uninitialized") 2991 Opts.setTrivialAutoVarInit( 2992 LangOptions::TrivialAutoVarInitKind::Uninitialized); 2993 else if (Val == "zero") 2994 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 2995 else if (Val == "pattern") 2996 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 2997 else 2998 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2999 } 3000 3001 // Parse -fsanitize= arguments. 3002 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3003 Diags, Opts.Sanitize); 3004 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3005 Opts.SanitizeAddressFieldPadding = 3006 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3007 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3008 3009 // -fxray-instrument 3010 Opts.XRayInstrument = 3011 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 3012 3013 // -fxray-always-emit-customevents 3014 Opts.XRayAlwaysEmitCustomEvents = 3015 Args.hasFlag(OPT_fxray_always_emit_customevents, 3016 OPT_fnoxray_always_emit_customevents, false); 3017 3018 // -fxray-always-emit-typedevents 3019 Opts.XRayAlwaysEmitTypedEvents = 3020 Args.hasFlag(OPT_fxray_always_emit_typedevents, 3021 OPT_fnoxray_always_emit_customevents, false); 3022 3023 // -fxray-{always,never}-instrument= filenames. 3024 Opts.XRayAlwaysInstrumentFiles = 3025 Args.getAllArgValues(OPT_fxray_always_instrument); 3026 Opts.XRayNeverInstrumentFiles = 3027 Args.getAllArgValues(OPT_fxray_never_instrument); 3028 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3029 3030 // -fforce-emit-vtables 3031 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3032 3033 // -fallow-editor-placeholders 3034 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3035 3036 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3037 3038 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3039 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3040 3041 StringRef Ver = A->getValue(); 3042 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3043 unsigned Major, Minor = 0; 3044 3045 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3046 // y or y.0 (4 <= y <= current version). 3047 if (!VerParts.first.startswith("0") && 3048 !VerParts.first.getAsInteger(10, Major) && 3049 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3050 (Major == 3 ? VerParts.second.size() == 1 && 3051 !VerParts.second.getAsInteger(10, Minor) 3052 : VerParts.first.size() == Ver.size() || 3053 VerParts.second == "0")) { 3054 // Got a valid version number. 3055 if (Major == 3 && Minor <= 8) 3056 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3057 else if (Major <= 4) 3058 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3059 else if (Major <= 6) 3060 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3061 else if (Major <= 7) 3062 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3063 } else if (Ver != "latest") { 3064 Diags.Report(diag::err_drv_invalid_value) 3065 << A->getAsString(Args) << A->getValue(); 3066 } 3067 } 3068 3069 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3070 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3071 } 3072 3073 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3074 switch (Action) { 3075 case frontend::ASTDeclList: 3076 case frontend::ASTDump: 3077 case frontend::ASTPrint: 3078 case frontend::ASTView: 3079 case frontend::EmitAssembly: 3080 case frontend::EmitBC: 3081 case frontend::EmitHTML: 3082 case frontend::EmitLLVM: 3083 case frontend::EmitLLVMOnly: 3084 case frontend::EmitCodeGenOnly: 3085 case frontend::EmitObj: 3086 case frontend::FixIt: 3087 case frontend::GenerateModule: 3088 case frontend::GenerateModuleInterface: 3089 case frontend::GenerateHeaderModule: 3090 case frontend::GeneratePCH: 3091 case frontend::ParseSyntaxOnly: 3092 case frontend::ModuleFileInfo: 3093 case frontend::VerifyPCH: 3094 case frontend::PluginAction: 3095 case frontend::RewriteObjC: 3096 case frontend::RewriteTest: 3097 case frontend::RunAnalysis: 3098 case frontend::TemplightDump: 3099 case frontend::MigrateSource: 3100 return false; 3101 3102 case frontend::DumpCompilerOptions: 3103 case frontend::DumpRawTokens: 3104 case frontend::DumpTokens: 3105 case frontend::InitOnly: 3106 case frontend::PrintPreamble: 3107 case frontend::PrintPreprocessedInput: 3108 case frontend::RewriteMacros: 3109 case frontend::RunPreprocessorOnly: 3110 return true; 3111 } 3112 llvm_unreachable("invalid frontend action"); 3113 } 3114 3115 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3116 DiagnosticsEngine &Diags, 3117 frontend::ActionKind Action) { 3118 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 3119 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3120 Args.hasArg(OPT_pch_through_hdrstop_use); 3121 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3122 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ); 3123 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3124 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3125 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3126 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3127 3128 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3129 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3130 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3131 3132 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3133 StringRef Value(A->getValue()); 3134 size_t Comma = Value.find(','); 3135 unsigned Bytes = 0; 3136 unsigned EndOfLine = 0; 3137 3138 if (Comma == StringRef::npos || 3139 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3140 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3141 Diags.Report(diag::err_drv_preamble_format); 3142 else { 3143 Opts.PrecompiledPreambleBytes.first = Bytes; 3144 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3145 } 3146 } 3147 3148 // Add the __CET__ macro if a CFProtection option is set. 3149 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3150 StringRef Name = A->getValue(); 3151 if (Name == "branch") 3152 Opts.addMacroDef("__CET__=1"); 3153 else if (Name == "return") 3154 Opts.addMacroDef("__CET__=2"); 3155 else if (Name == "full") 3156 Opts.addMacroDef("__CET__=3"); 3157 } 3158 3159 // Add macros from the command line. 3160 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3161 if (A->getOption().matches(OPT_D)) 3162 Opts.addMacroDef(A->getValue()); 3163 else 3164 Opts.addMacroUndef(A->getValue()); 3165 } 3166 3167 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3168 3169 // Add the ordered list of -includes. 3170 for (const auto *A : Args.filtered(OPT_include)) 3171 Opts.Includes.emplace_back(A->getValue()); 3172 3173 for (const auto *A : Args.filtered(OPT_chain_include)) 3174 Opts.ChainedIncludes.emplace_back(A->getValue()); 3175 3176 for (const auto *A : Args.filtered(OPT_remap_file)) { 3177 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3178 3179 if (Split.second.empty()) { 3180 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3181 continue; 3182 } 3183 3184 Opts.addRemappedFile(Split.first, Split.second); 3185 } 3186 3187 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3188 StringRef Name = A->getValue(); 3189 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3190 .Case("libc++", ARCXX_libcxx) 3191 .Case("libstdc++", ARCXX_libstdcxx) 3192 .Case("none", ARCXX_nolib) 3193 .Default(~0U); 3194 if (Library == ~0U) 3195 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3196 else 3197 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3198 } 3199 3200 // Always avoid lexing editor placeholders when we're just running the 3201 // preprocessor as we never want to emit the 3202 // "editor placeholder in source file" error in PP only mode. 3203 if (isStrictlyPreprocessorAction(Action)) 3204 Opts.LexEditorPlaceholders = false; 3205 } 3206 3207 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3208 ArgList &Args, 3209 frontend::ActionKind Action) { 3210 if (isStrictlyPreprocessorAction(Action)) 3211 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3212 else 3213 Opts.ShowCPP = 0; 3214 3215 Opts.ShowComments = Args.hasArg(OPT_C); 3216 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3217 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3218 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3219 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3220 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3221 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3222 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3223 } 3224 3225 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3226 DiagnosticsEngine &Diags) { 3227 Opts.CodeModel = getCodeModel(Args, Diags); 3228 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 3229 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3230 StringRef Value = A->getValue(); 3231 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3232 .Case("default", llvm::EABI::Default) 3233 .Case("4", llvm::EABI::EABI4) 3234 .Case("5", llvm::EABI::EABI5) 3235 .Case("gnu", llvm::EABI::GNU) 3236 .Default(llvm::EABI::Unknown); 3237 if (EABIVersion == llvm::EABI::Unknown) 3238 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3239 << Value; 3240 else 3241 Opts.EABIVersion = EABIVersion; 3242 } 3243 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 3244 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 3245 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3246 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 3247 Opts.Triple = Args.getLastArgValue(OPT_triple); 3248 // Use the default target triple if unspecified. 3249 if (Opts.Triple.empty()) 3250 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3251 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3252 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3253 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3254 Opts.NVPTXUseShortPointers = Args.hasFlag( 3255 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3256 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3257 llvm::VersionTuple Version; 3258 if (Version.tryParse(A->getValue())) 3259 Diags.Report(diag::err_drv_invalid_value) 3260 << A->getAsString(Args) << A->getValue(); 3261 else 3262 Opts.SDKVersion = Version; 3263 } 3264 } 3265 3266 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3267 const char *const *ArgBegin, 3268 const char *const *ArgEnd, 3269 DiagnosticsEngine &Diags) { 3270 bool Success = true; 3271 3272 // Parse the arguments. 3273 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 3274 const unsigned IncludedFlagsBitmask = options::CC1Option; 3275 unsigned MissingArgIndex, MissingArgCount; 3276 InputArgList Args = 3277 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 3278 MissingArgCount, IncludedFlagsBitmask); 3279 LangOptions &LangOpts = *Res.getLangOpts(); 3280 3281 // Check for missing argument error. 3282 if (MissingArgCount) { 3283 Diags.Report(diag::err_drv_missing_argument) 3284 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3285 Success = false; 3286 } 3287 3288 // Issue errors on unknown arguments. 3289 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3290 auto ArgString = A->getAsString(Args); 3291 std::string Nearest; 3292 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3293 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3294 else 3295 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3296 << ArgString << Nearest; 3297 Success = false; 3298 } 3299 3300 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3301 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3302 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3303 Success &= 3304 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3305 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3306 ParseCommentArgs(LangOpts.CommentOpts, Args); 3307 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3308 // FIXME: We shouldn't have to pass the DashX option around here 3309 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3310 LangOpts.IsHeaderFile); 3311 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3312 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3313 Res.getTargetOpts(), Res.getFrontendOpts()); 3314 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3315 Res.getFileSystemOpts().WorkingDir); 3316 llvm::Triple T(Res.getTargetOpts().Triple); 3317 if (DashX.getFormat() == InputKind::Precompiled || 3318 DashX.getLanguage() == InputKind::LLVM_IR) { 3319 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3320 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3321 // what the input type is. 3322 if (Args.hasArg(OPT_fobjc_arc)) 3323 LangOpts.ObjCAutoRefCount = 1; 3324 // PIClevel and PIELevel are needed during code generation and this should be 3325 // set regardless of the input type. 3326 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3327 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3328 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3329 Diags, LangOpts.Sanitize); 3330 } else { 3331 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3332 // FIXME: Should we really be calling this for an InputKind::Asm input? 3333 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3334 Res.getPreprocessorOpts(), Diags); 3335 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3336 LangOpts.ObjCExceptions = 1; 3337 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3338 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3339 // preprocessed input as we don't expect it to be used with -std=libc++ 3340 // anyway. 3341 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3342 } 3343 } 3344 3345 LangOpts.FunctionAlignment = 3346 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3347 3348 if (LangOpts.CUDA) { 3349 // During CUDA device-side compilation, the aux triple is the 3350 // triple used for host compilation. 3351 if (LangOpts.CUDAIsDevice) 3352 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3353 } 3354 3355 // Set the triple of the host for OpenMP device compile. 3356 if (LangOpts.OpenMPIsDevice) 3357 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3358 3359 // FIXME: Override value name discarding when asan or msan is used because the 3360 // backend passes depend on the name of the alloca in order to print out 3361 // names. 3362 Res.getCodeGenOpts().DiscardValueNames &= 3363 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3364 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3365 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3366 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3367 3368 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3369 Res.getFrontendOpts().ProgramAction); 3370 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3371 Res.getFrontendOpts().ProgramAction); 3372 3373 // Turn on -Wspir-compat for SPIR target. 3374 if (T.isSPIR()) 3375 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3376 3377 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3378 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3379 !Res.getLangOpts()->Sanitize.empty()) { 3380 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3381 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3382 } 3383 return Success; 3384 } 3385 3386 std::string CompilerInvocation::getModuleHash() const { 3387 // Note: For QoI reasons, the things we use as a hash here should all be 3388 // dumped via the -module-info flag. 3389 using llvm::hash_code; 3390 using llvm::hash_value; 3391 using llvm::hash_combine; 3392 3393 // Start the signature with the compiler version. 3394 // FIXME: We'd rather use something more cryptographically sound than 3395 // CityHash, but this will do for now. 3396 hash_code code = hash_value(getClangFullRepositoryVersion()); 3397 3398 // Extend the signature with the language options 3399 #define LANGOPT(Name, Bits, Default, Description) \ 3400 code = hash_combine(code, LangOpts->Name); 3401 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3402 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3403 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3404 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3405 #include "clang/Basic/LangOptions.def" 3406 3407 for (StringRef Feature : LangOpts->ModuleFeatures) 3408 code = hash_combine(code, Feature); 3409 3410 // Extend the signature with the target options. 3411 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3412 TargetOpts->ABI); 3413 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3414 code = hash_combine(code, FeatureAsWritten); 3415 3416 // Extend the signature with preprocessor options. 3417 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3418 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3419 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3420 3421 for (const auto &I : getPreprocessorOpts().Macros) { 3422 // If we're supposed to ignore this macro for the purposes of modules, 3423 // don't put it into the hash. 3424 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3425 // Check whether we're ignoring this macro. 3426 StringRef MacroDef = I.first; 3427 if (hsOpts.ModulesIgnoreMacros.count( 3428 llvm::CachedHashString(MacroDef.split('=').first))) 3429 continue; 3430 } 3431 3432 code = hash_combine(code, I.first, I.second); 3433 } 3434 3435 // Extend the signature with the sysroot and other header search options. 3436 code = hash_combine(code, hsOpts.Sysroot, 3437 hsOpts.ModuleFormat, 3438 hsOpts.UseDebugInfo, 3439 hsOpts.UseBuiltinIncludes, 3440 hsOpts.UseStandardSystemIncludes, 3441 hsOpts.UseStandardCXXIncludes, 3442 hsOpts.UseLibcxx, 3443 hsOpts.ModulesValidateDiagnosticOptions); 3444 code = hash_combine(code, hsOpts.ResourceDir); 3445 3446 // Extend the signature with the user build path. 3447 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3448 3449 // Extend the signature with the module file extensions. 3450 const FrontendOptions &frontendOpts = getFrontendOpts(); 3451 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3452 code = ext->hashExtension(code); 3453 } 3454 3455 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3456 // affects the debug info in the PCM. 3457 if (getCodeGenOpts().DebugTypeExtRefs) 3458 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3459 code = hash_combine(code, KeyValue.first, KeyValue.second); 3460 3461 // Extend the signature with the enabled sanitizers, if at least one is 3462 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3463 SanitizerSet SanHash = LangOpts->Sanitize; 3464 SanHash.clear(getPPTransparentSanitizers()); 3465 if (!SanHash.empty()) 3466 code = hash_combine(code, SanHash.Mask); 3467 3468 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3469 } 3470 3471 template<typename IntTy> 3472 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 3473 IntTy Default, 3474 DiagnosticsEngine *Diags) { 3475 IntTy Res = Default; 3476 if (Arg *A = Args.getLastArg(Id)) { 3477 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 3478 if (Diags) 3479 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 3480 << A->getValue(); 3481 } 3482 } 3483 return Res; 3484 } 3485 3486 namespace clang { 3487 3488 // Declared in clang/Frontend/Utils.h. 3489 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 3490 DiagnosticsEngine *Diags) { 3491 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 3492 } 3493 3494 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 3495 uint64_t Default, 3496 DiagnosticsEngine *Diags) { 3497 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 3498 } 3499 3500 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3501 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3502 DiagnosticsEngine &Diags) { 3503 return createVFSFromCompilerInvocation(CI, Diags, 3504 llvm::vfs::getRealFileSystem()); 3505 } 3506 3507 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3508 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3509 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3510 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3511 return BaseFS; 3512 3513 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3514 // earlier vfs files are on the bottom 3515 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3516 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3517 Result->getBufferForFile(File); 3518 if (!Buffer) { 3519 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3520 continue; 3521 } 3522 3523 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3524 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3525 /*DiagContext*/ nullptr, Result); 3526 if (!FS) { 3527 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3528 continue; 3529 } 3530 3531 Result = FS; 3532 } 3533 return Result; 3534 } 3535 3536 } // namespace clang 3537