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.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 289 Opts.ShowCheckerHelpDeveloper = 290 Args.hasArg(OPT_analyzer_checker_help_developer); 291 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 292 Opts.ShowCheckerOptionDeveloperList = 293 Args.hasArg(OPT_analyzer_checker_option_help_developer); 294 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 295 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 296 Opts.ShouldEmitErrorsOnInvalidConfigValue = 297 /* negated */!llvm::StringSwitch<bool>( 298 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 299 .Case("true", true) 300 .Case("false", false) 301 .Default(false); 302 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 303 304 Opts.visualizeExplodedGraphWithGraphViz = 305 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 306 Opts.DumpExplodedGraphTo = Args.getLastArgValue(OPT_analyzer_dump_egraph); 307 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 308 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 309 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 310 Opts.AnalyzeNestedBlocks = 311 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 312 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 313 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 314 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 315 Opts.maxBlockVisitOnPath = 316 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 317 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 318 Opts.InlineMaxStackDepth = 319 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 320 Opts.InlineMaxStackDepth, Diags); 321 322 Opts.CheckersControlList.clear(); 323 for (const Arg *A : 324 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 325 A->claim(); 326 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 327 // We can have a list of comma separated checker names, e.g: 328 // '-analyzer-checker=cocoa,unix' 329 StringRef checkerList = A->getValue(); 330 SmallVector<StringRef, 4> checkers; 331 checkerList.split(checkers, ","); 332 for (auto checker : checkers) 333 Opts.CheckersControlList.emplace_back(checker, enable); 334 } 335 336 // Go through the analyzer configuration options. 337 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 338 339 // We can have a list of comma separated config names, e.g: 340 // '-analyzer-config key1=val1,key2=val2' 341 StringRef configList = A->getValue(); 342 SmallVector<StringRef, 4> configVals; 343 configList.split(configVals, ","); 344 for (const auto &configVal : configVals) { 345 StringRef key, val; 346 std::tie(key, val) = configVal.split("="); 347 if (val.empty()) { 348 Diags.Report(SourceLocation(), 349 diag::err_analyzer_config_no_value) << configVal; 350 Success = false; 351 break; 352 } 353 if (val.find('=') != StringRef::npos) { 354 Diags.Report(SourceLocation(), 355 diag::err_analyzer_config_multiple_values) 356 << configVal; 357 Success = false; 358 break; 359 } 360 361 // TODO: Check checker options too, possibly in CheckerRegistry. 362 // Leave unknown non-checker configs unclaimed. 363 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 364 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 365 Diags.Report(diag::err_analyzer_config_unknown) << key; 366 continue; 367 } 368 369 A->claim(); 370 Opts.Config[key] = val; 371 } 372 } 373 374 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 375 parseAnalyzerConfigs(Opts, &Diags); 376 else 377 parseAnalyzerConfigs(Opts, nullptr); 378 379 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 380 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 381 if (i != 0) 382 os << " "; 383 os << Args.getArgString(i); 384 } 385 os.flush(); 386 387 return Success; 388 } 389 390 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 391 StringRef OptionName, StringRef DefaultVal) { 392 return Config.insert({OptionName, DefaultVal}).first->second; 393 } 394 395 static void initOption(AnalyzerOptions::ConfigTable &Config, 396 DiagnosticsEngine *Diags, 397 StringRef &OptionField, StringRef Name, 398 StringRef DefaultVal) { 399 // String options may be known to invalid (e.g. if the expected string is a 400 // file name, but the file does not exist), those will have to be checked in 401 // parseConfigs. 402 OptionField = getStringOption(Config, Name, DefaultVal); 403 } 404 405 static void initOption(AnalyzerOptions::ConfigTable &Config, 406 DiagnosticsEngine *Diags, 407 bool &OptionField, StringRef Name, bool DefaultVal) { 408 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 409 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 410 .Case("true", true) 411 .Case("false", false) 412 .Default(None); 413 414 if (!PossiblyInvalidVal) { 415 if (Diags) 416 Diags->Report(diag::err_analyzer_config_invalid_input) 417 << Name << "a boolean"; 418 else 419 OptionField = DefaultVal; 420 } else 421 OptionField = PossiblyInvalidVal.getValue(); 422 } 423 424 static void initOption(AnalyzerOptions::ConfigTable &Config, 425 DiagnosticsEngine *Diags, 426 unsigned &OptionField, StringRef Name, 427 unsigned DefaultVal) { 428 429 OptionField = DefaultVal; 430 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 431 .getAsInteger(0, OptionField); 432 if (Diags && HasFailed) 433 Diags->Report(diag::err_analyzer_config_invalid_input) 434 << Name << "an unsigned"; 435 } 436 437 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 438 DiagnosticsEngine *Diags) { 439 // TODO: There's no need to store the entire configtable, it'd be plenty 440 // enough tostore checker options. 441 442 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 443 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 444 445 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 446 SHALLOW_VAL, DEEP_VAL) \ 447 switch (AnOpts.getUserMode()) { \ 448 case UMK_Shallow: \ 449 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 450 break; \ 451 case UMK_Deep: \ 452 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 453 break; \ 454 } \ 455 456 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 457 #undef ANALYZER_OPTION 458 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 459 460 // At this point, AnalyzerOptions is configured. Let's validate some options. 461 462 if (!Diags) 463 return; 464 465 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 466 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 467 << "a filename"; 468 469 if (!AnOpts.ModelPath.empty() && 470 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 471 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 472 << "a filename"; 473 } 474 475 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 476 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 477 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 478 return true; 479 } 480 481 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 482 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 483 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 484 } 485 486 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 487 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 488 StringRef Value = A->getValue(); 489 if (Value == "small" || Value == "kernel" || Value == "medium" || 490 Value == "large" || Value == "tiny") 491 return Value; 492 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 493 } 494 return "default"; 495 } 496 497 static llvm::Reloc::Model getRelocModel(ArgList &Args, 498 DiagnosticsEngine &Diags) { 499 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 500 StringRef Value = A->getValue(); 501 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 502 .Case("static", llvm::Reloc::Static) 503 .Case("pic", llvm::Reloc::PIC_) 504 .Case("ropi", llvm::Reloc::ROPI) 505 .Case("rwpi", llvm::Reloc::RWPI) 506 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 507 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 508 .Default(None); 509 if (RM.hasValue()) 510 return *RM; 511 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 512 } 513 return llvm::Reloc::PIC_; 514 } 515 516 /// Create a new Regex instance out of the string value in \p RpassArg. 517 /// It returns a pointer to the newly generated Regex instance. 518 static std::shared_ptr<llvm::Regex> 519 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 520 Arg *RpassArg) { 521 StringRef Val = RpassArg->getValue(); 522 std::string RegexError; 523 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 524 if (!Pattern->isValid(RegexError)) { 525 Diags.Report(diag::err_drv_optimization_remark_pattern) 526 << RegexError << RpassArg->getAsString(Args); 527 Pattern.reset(); 528 } 529 return Pattern; 530 } 531 532 static bool parseDiagnosticLevelMask(StringRef FlagName, 533 const std::vector<std::string> &Levels, 534 DiagnosticsEngine *Diags, 535 DiagnosticLevelMask &M) { 536 bool Success = true; 537 for (const auto &Level : Levels) { 538 DiagnosticLevelMask const PM = 539 llvm::StringSwitch<DiagnosticLevelMask>(Level) 540 .Case("note", DiagnosticLevelMask::Note) 541 .Case("remark", DiagnosticLevelMask::Remark) 542 .Case("warning", DiagnosticLevelMask::Warning) 543 .Case("error", DiagnosticLevelMask::Error) 544 .Default(DiagnosticLevelMask::None); 545 if (PM == DiagnosticLevelMask::None) { 546 Success = false; 547 if (Diags) 548 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 549 } 550 M = M | PM; 551 } 552 return Success; 553 } 554 555 static void parseSanitizerKinds(StringRef FlagName, 556 const std::vector<std::string> &Sanitizers, 557 DiagnosticsEngine &Diags, SanitizerSet &S) { 558 for (const auto &Sanitizer : Sanitizers) { 559 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 560 if (K == SanitizerMask()) 561 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 562 else 563 S.set(K, true); 564 } 565 } 566 567 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 568 ArgList &Args, DiagnosticsEngine &D, 569 XRayInstrSet &S) { 570 llvm::SmallVector<StringRef, 2> BundleParts; 571 llvm::SplitString(Bundle, BundleParts, ","); 572 for (const auto B : BundleParts) { 573 auto Mask = parseXRayInstrValue(B); 574 if (Mask == XRayInstrKind::None) 575 if (B != "none") 576 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 577 else 578 S.Mask = Mask; 579 else if (Mask == XRayInstrKind::All) 580 S.Mask = Mask; 581 else 582 S.set(Mask, true); 583 } 584 } 585 586 // Set the profile kind for fprofile-instrument. 587 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 588 DiagnosticsEngine &Diags) { 589 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 590 if (A == nullptr) 591 return; 592 StringRef S = A->getValue(); 593 unsigned I = llvm::StringSwitch<unsigned>(S) 594 .Case("none", CodeGenOptions::ProfileNone) 595 .Case("clang", CodeGenOptions::ProfileClangInstr) 596 .Case("llvm", CodeGenOptions::ProfileIRInstr) 597 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 598 .Default(~0U); 599 if (I == ~0U) { 600 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 601 << S; 602 return; 603 } 604 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 605 Opts.setProfileInstr(Instrumentor); 606 } 607 608 // Set the profile kind using fprofile-instrument-use-path. 609 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 610 const Twine &ProfileName) { 611 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 612 // In error, return silently and let Clang PGOUse report the error message. 613 if (auto E = ReaderOrErr.takeError()) { 614 llvm::consumeError(std::move(E)); 615 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 616 return; 617 } 618 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 619 std::move(ReaderOrErr.get()); 620 if (PGOReader->isIRLevelProfile()) { 621 if (PGOReader->hasCSIRLevelProfile()) 622 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 623 else 624 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 625 } else 626 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 627 } 628 629 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 630 DiagnosticsEngine &Diags, 631 const TargetOptions &TargetOpts, 632 const FrontendOptions &FrontendOpts) { 633 bool Success = true; 634 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 635 636 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 637 // TODO: This could be done in Driver 638 unsigned MaxOptLevel = 3; 639 if (OptimizationLevel > MaxOptLevel) { 640 // If the optimization level is not supported, fall back on the default 641 // optimization 642 Diags.Report(diag::warn_drv_optimization_value) 643 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 644 OptimizationLevel = MaxOptLevel; 645 } 646 Opts.OptimizationLevel = OptimizationLevel; 647 648 // At O0 we want to fully disable inlining outside of cases marked with 649 // 'alwaysinline' that are required for correctness. 650 Opts.setInlining((Opts.OptimizationLevel == 0) 651 ? CodeGenOptions::OnlyAlwaysInlining 652 : CodeGenOptions::NormalInlining); 653 // Explicit inlining flags can disable some or all inlining even at 654 // optimization levels above zero. 655 if (Arg *InlineArg = Args.getLastArg( 656 options::OPT_finline_functions, options::OPT_finline_hint_functions, 657 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 658 if (Opts.OptimizationLevel > 0) { 659 const Option &InlineOpt = InlineArg->getOption(); 660 if (InlineOpt.matches(options::OPT_finline_functions)) 661 Opts.setInlining(CodeGenOptions::NormalInlining); 662 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 663 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 664 else 665 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 666 } 667 } 668 669 Opts.ExperimentalNewPassManager = Args.hasFlag( 670 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 671 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 672 673 Opts.DebugPassManager = 674 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 675 /* Default */ false); 676 677 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 678 StringRef Name = A->getValue(); 679 if (Name == "Accelerate") 680 Opts.setVecLib(CodeGenOptions::Accelerate); 681 else if (Name == "SVML") 682 Opts.setVecLib(CodeGenOptions::SVML); 683 else if (Name == "none") 684 Opts.setVecLib(CodeGenOptions::NoLibrary); 685 else 686 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 687 } 688 689 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 690 unsigned Val = 691 llvm::StringSwitch<unsigned>(A->getValue()) 692 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 693 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 694 .Case("limited", codegenoptions::LimitedDebugInfo) 695 .Case("standalone", codegenoptions::FullDebugInfo) 696 .Default(~0U); 697 if (Val == ~0U) 698 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 699 << A->getValue(); 700 else 701 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 702 } 703 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 704 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 705 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 706 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 707 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 708 .Default(~0U); 709 if (Val == ~0U) 710 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 711 << A->getValue(); 712 else 713 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 714 } 715 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 716 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 717 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 718 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 719 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 720 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 721 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 722 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 723 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 724 725 if (Arg *A = 726 Args.getLastArg(OPT_enable_split_dwarf, OPT_enable_split_dwarf_EQ)) { 727 if (A->getOption().matches(options::OPT_enable_split_dwarf)) { 728 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 729 } else { 730 StringRef Name = A->getValue(); 731 if (Name == "single") 732 Opts.setSplitDwarfMode(CodeGenOptions::SingleFileFission); 733 else if (Name == "split") 734 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 735 else 736 Diags.Report(diag::err_drv_invalid_value) 737 << A->getAsString(Args) << Name; 738 } 739 } 740 741 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 742 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 743 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 744 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 745 746 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 747 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 748 749 if (const Arg *A = 750 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 751 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 752 753 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 754 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 755 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 756 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 757 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 758 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 759 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 760 OPT_fuse_register_sized_bitfield_access); 761 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 762 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 763 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 764 Args.hasArg(OPT_new_struct_path_tbaa); 765 Opts.FineGrainedBitfieldAccesses = 766 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 767 OPT_fno_fine_grained_bitfield_accesses, false); 768 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 769 Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line); 770 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 771 Opts.NoCommon = Args.hasArg(OPT_fno_common); 772 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 773 Opts.OptimizeSize = getOptimizationLevelSize(Args); 774 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 775 Args.hasArg(OPT_ffreestanding)); 776 if (Opts.SimplifyLibCalls) 777 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 778 Opts.UnrollLoops = 779 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 780 (Opts.OptimizationLevel > 1)); 781 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 782 783 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 784 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 785 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 786 Opts.DebugInfoForProfiling = Args.hasFlag( 787 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 788 Opts.DebugNameTable = static_cast<unsigned>( 789 Args.hasArg(OPT_ggnu_pubnames) 790 ? llvm::DICompileUnit::DebugNameTableKind::GNU 791 : Args.hasArg(OPT_gpubnames) 792 ? llvm::DICompileUnit::DebugNameTableKind::Default 793 : llvm::DICompileUnit::DebugNameTableKind::None); 794 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 795 796 setPGOInstrumentor(Opts, Args, Diags); 797 Opts.InstrProfileOutput = 798 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 799 Opts.ProfileInstrumentUsePath = 800 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 801 if (!Opts.ProfileInstrumentUsePath.empty()) 802 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 803 Opts.ProfileRemappingFile = 804 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ); 805 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 806 Diags.Report(diag::err_drv_argument_only_allowed_with) 807 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 808 << "-fexperimental-new-pass-manager"; 809 } 810 811 Opts.CoverageMapping = 812 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 813 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 814 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 815 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 816 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 817 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 818 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 819 Opts.RegisterGlobalDtorsWithAtExit = 820 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 821 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 822 Opts.CodeModel = TargetOpts.CodeModel; 823 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 824 Opts.DisableFPElim = 825 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 826 Opts.DisableFree = Args.hasArg(OPT_disable_free); 827 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 828 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 829 Opts.NoEscapingBlockTailCalls = 830 Args.hasArg(OPT_fno_escaping_block_tail_calls); 831 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 832 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 833 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 834 Args.hasArg(OPT_cl_fast_relaxed_math); 835 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 836 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 837 Args.hasArg(OPT_cl_finite_math_only) || 838 Args.hasArg(OPT_cl_fast_relaxed_math)); 839 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 840 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 841 Args.hasArg(OPT_cl_finite_math_only) || 842 Args.hasArg(OPT_cl_fast_relaxed_math)); 843 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 844 Args.hasArg(OPT_cl_no_signed_zeros) || 845 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 846 Args.hasArg(OPT_cl_fast_relaxed_math)); 847 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 848 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) || 849 (Args.hasArg(OPT_fcuda_is_device) && 850 Args.hasArg(OPT_fcuda_flush_denormals_to_zero)); 851 Opts.CorrectlyRoundedDivSqrt = 852 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 853 Opts.UniformWGSize = 854 Args.hasArg(OPT_cl_uniform_work_group_size); 855 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 856 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 857 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 858 Opts.StrictFloatCastOverflow = 859 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 860 861 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 862 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 863 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 864 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 865 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 866 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 867 Opts.IncrementalLinkerCompatible = 868 Args.hasArg(OPT_mincremental_linker_compatible); 869 Opts.PIECopyRelocations = 870 Args.hasArg(OPT_mpie_copy_relocations); 871 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 872 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 873 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 874 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 875 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 876 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 877 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 878 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 879 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 880 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 881 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 882 Args.hasArg(OPT_cl_fast_relaxed_math); 883 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 884 Opts.RelocationModel = getRelocModel(Args, Diags); 885 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 886 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 887 Diags.Report(diag::err_drv_invalid_value) 888 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 889 << Opts.ThreadModel; 890 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 891 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 892 893 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 894 OPT_fno_function_sections, false); 895 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 896 OPT_fno_data_sections, false); 897 Opts.StackSizeSection = 898 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 899 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 900 OPT_fno_unique_section_names, true); 901 902 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 903 904 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 905 906 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 907 908 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 909 910 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 911 Opts.PrepareForThinLTO = false; 912 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 913 StringRef S = A->getValue(); 914 if (S == "thin") 915 Opts.PrepareForThinLTO = true; 916 else if (S != "full") 917 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 918 } 919 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 920 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 921 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 922 if (IK.getLanguage() != InputKind::LLVM_IR) 923 Diags.Report(diag::err_drv_argument_only_allowed_with) 924 << A->getAsString(Args) << "-x ir"; 925 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 926 } 927 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 928 Opts.SaveTempsFilePrefix = 929 llvm::StringSwitch<std::string>(A->getValue()) 930 .Case("obj", FrontendOpts.OutputFile) 931 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 932 933 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 934 935 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 936 937 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 938 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 939 940 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 941 942 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 943 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 944 945 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 946 947 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 948 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 949 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 950 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 951 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 952 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 953 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 954 Opts.CoverageNoFunctionNamesInData = 955 Args.hasArg(OPT_coverage_no_function_names_in_data); 956 Opts.ProfileFilterFiles = 957 Args.getLastArgValue(OPT_fprofile_filter_files_EQ); 958 Opts.ProfileExcludeFiles = 959 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ); 960 Opts.CoverageExitBlockBeforeBody = 961 Args.hasArg(OPT_coverage_exit_block_before_body); 962 if (Args.hasArg(OPT_coverage_version_EQ)) { 963 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 964 if (CoverageVersion.size() != 4) { 965 Diags.Report(diag::err_drv_invalid_value) 966 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 967 << CoverageVersion; 968 } else { 969 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 970 } 971 } 972 } 973 // Handle -fembed-bitcode option. 974 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 975 StringRef Name = A->getValue(); 976 unsigned Model = llvm::StringSwitch<unsigned>(Name) 977 .Case("off", CodeGenOptions::Embed_Off) 978 .Case("all", CodeGenOptions::Embed_All) 979 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 980 .Case("marker", CodeGenOptions::Embed_Marker) 981 .Default(~0U); 982 if (Model == ~0U) { 983 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 984 Success = false; 985 } else 986 Opts.setEmbedBitcode( 987 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 988 } 989 // FIXME: For backend options that are not yet recorded as function 990 // attributes in the IR, keep track of them so we can embed them in a 991 // separate data section and use them when building the bitcode. 992 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 993 for (const auto &A : Args) { 994 // Do not encode output and input. 995 if (A->getOption().getID() == options::OPT_o || 996 A->getOption().getID() == options::OPT_INPUT || 997 A->getOption().getID() == options::OPT_x || 998 A->getOption().getID() == options::OPT_fembed_bitcode || 999 (A->getOption().getGroup().isValid() && 1000 A->getOption().getGroup().getID() == options::OPT_W_Group)) 1001 continue; 1002 ArgStringList ASL; 1003 A->render(Args, ASL); 1004 for (const auto &arg : ASL) { 1005 StringRef ArgStr(arg); 1006 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1007 // using \00 to separate each commandline options. 1008 Opts.CmdArgs.push_back('\0'); 1009 } 1010 } 1011 } 1012 1013 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1014 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1015 Opts.InstrumentFunctionsAfterInlining = 1016 Args.hasArg(OPT_finstrument_functions_after_inlining); 1017 Opts.InstrumentFunctionEntryBare = 1018 Args.hasArg(OPT_finstrument_function_entry_bare); 1019 1020 Opts.XRayInstrumentFunctions = 1021 Args.hasArg(OPT_fxray_instrument); 1022 Opts.XRayAlwaysEmitCustomEvents = 1023 Args.hasArg(OPT_fxray_always_emit_customevents); 1024 Opts.XRayAlwaysEmitTypedEvents = 1025 Args.hasArg(OPT_fxray_always_emit_typedevents); 1026 Opts.XRayInstructionThreshold = 1027 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1028 1029 auto XRayInstrBundles = 1030 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1031 if (XRayInstrBundles.empty()) 1032 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1033 else 1034 for (const auto &A : XRayInstrBundles) 1035 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1036 Diags, Opts.XRayInstrumentationBundle); 1037 1038 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1039 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1040 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1041 1042 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1043 StringRef Name = A->getValue(); 1044 if (Name == "full") { 1045 Opts.CFProtectionReturn = 1; 1046 Opts.CFProtectionBranch = 1; 1047 } else if (Name == "return") 1048 Opts.CFProtectionReturn = 1; 1049 else if (Name == "branch") 1050 Opts.CFProtectionBranch = 1; 1051 else if (Name != "none") { 1052 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1053 Success = false; 1054 } 1055 } 1056 1057 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1058 OPT_compress_debug_sections_EQ)) { 1059 if (A->getOption().getID() == OPT_compress_debug_sections) { 1060 // TODO: be more clever about the compression type auto-detection 1061 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1062 } else { 1063 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1064 .Case("none", llvm::DebugCompressionType::None) 1065 .Case("zlib", llvm::DebugCompressionType::Z) 1066 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1067 .Default(llvm::DebugCompressionType::None); 1068 Opts.setCompressDebugSections(DCT); 1069 } 1070 } 1071 1072 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1073 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1074 for (auto *A : 1075 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1076 CodeGenOptions::BitcodeFileToLink F; 1077 F.Filename = A->getValue(); 1078 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1079 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1080 // When linking CUDA bitcode, propagate function attributes so that 1081 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1082 F.PropagateAttrs = true; 1083 F.Internalize = true; 1084 } 1085 Opts.LinkBitcodeFiles.push_back(F); 1086 } 1087 Opts.SanitizeCoverageType = 1088 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1089 Opts.SanitizeCoverageIndirectCalls = 1090 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1091 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1092 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1093 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1094 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1095 Opts.SanitizeCoverage8bitCounters = 1096 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1097 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1098 Opts.SanitizeCoverageTracePCGuard = 1099 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1100 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1101 Opts.SanitizeCoverageInline8bitCounters = 1102 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1103 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1104 Opts.SanitizeCoverageStackDepth = 1105 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1106 Opts.SanitizeMemoryTrackOrigins = 1107 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1108 Opts.SanitizeMemoryUseAfterDtor = 1109 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1110 OPT_fno_sanitize_memory_use_after_dtor, 1111 false); 1112 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1113 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1114 Opts.SanitizeCfiICallGeneralizePointers = 1115 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1116 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1117 if (Arg *A = Args.getLastArg( 1118 OPT_fsanitize_address_poison_custom_array_cookie, 1119 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1120 Opts.SanitizeAddressPoisonCustomArrayCookie = 1121 A->getOption().getID() == 1122 OPT_fsanitize_address_poison_custom_array_cookie; 1123 } 1124 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1125 OPT_fno_sanitize_address_use_after_scope)) { 1126 Opts.SanitizeAddressUseAfterScope = 1127 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1128 } 1129 Opts.SanitizeAddressGlobalsDeadStripping = 1130 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1131 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1132 OPT_fno_sanitize_address_use_odr_indicator)) { 1133 Opts.SanitizeAddressUseOdrIndicator = 1134 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1135 } 1136 Opts.SSPBufferSize = 1137 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1138 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1139 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1140 StringRef Val = A->getValue(); 1141 unsigned StackAlignment = Opts.StackAlignment; 1142 Val.getAsInteger(10, StackAlignment); 1143 Opts.StackAlignment = StackAlignment; 1144 } 1145 1146 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1147 StringRef Val = A->getValue(); 1148 unsigned StackProbeSize = Opts.StackProbeSize; 1149 Val.getAsInteger(0, StackProbeSize); 1150 Opts.StackProbeSize = StackProbeSize; 1151 } 1152 1153 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1154 1155 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1156 StringRef Name = A->getValue(); 1157 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1158 .Case("legacy", CodeGenOptions::Legacy) 1159 .Case("non-legacy", CodeGenOptions::NonLegacy) 1160 .Case("mixed", CodeGenOptions::Mixed) 1161 .Default(~0U); 1162 if (Method == ~0U) { 1163 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1164 Success = false; 1165 } else { 1166 Opts.setObjCDispatchMethod( 1167 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1168 } 1169 } 1170 1171 1172 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1173 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1174 1175 if (Args.getLastArg(OPT_femulated_tls) || 1176 Args.getLastArg(OPT_fno_emulated_tls)) { 1177 Opts.ExplicitEmulatedTLS = true; 1178 Opts.EmulatedTLS = 1179 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1180 } 1181 1182 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1183 StringRef Name = A->getValue(); 1184 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1185 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1186 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1187 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1188 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1189 .Default(~0U); 1190 if (Model == ~0U) { 1191 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1192 Success = false; 1193 } else { 1194 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1195 } 1196 } 1197 1198 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1199 StringRef Val = A->getValue(); 1200 if (Val == "ieee") 1201 Opts.FPDenormalMode = "ieee"; 1202 else if (Val == "preserve-sign") 1203 Opts.FPDenormalMode = "preserve-sign"; 1204 else if (Val == "positive-zero") 1205 Opts.FPDenormalMode = "positive-zero"; 1206 else 1207 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1208 } 1209 1210 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1211 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1212 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1213 } else { 1214 assert(A->getOption().matches(OPT_freg_struct_return)); 1215 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1216 } 1217 } 1218 1219 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1220 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1221 bool NeedLocTracking = false; 1222 1223 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 1224 if (!Opts.OptRecordFile.empty()) 1225 NeedLocTracking = true; 1226 1227 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1228 Opts.OptRecordPasses = A->getValue(); 1229 NeedLocTracking = true; 1230 } 1231 1232 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1233 Opts.OptimizationRemarkPattern = 1234 GenerateOptimizationRemarkRegex(Diags, Args, A); 1235 NeedLocTracking = true; 1236 } 1237 1238 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1239 Opts.OptimizationRemarkMissedPattern = 1240 GenerateOptimizationRemarkRegex(Diags, Args, A); 1241 NeedLocTracking = true; 1242 } 1243 1244 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1245 Opts.OptimizationRemarkAnalysisPattern = 1246 GenerateOptimizationRemarkRegex(Diags, Args, A); 1247 NeedLocTracking = true; 1248 } 1249 1250 Opts.DiagnosticsWithHotness = 1251 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1252 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1253 bool UsingProfile = UsingSampleProfile || 1254 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1255 1256 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1257 // An IR file will contain PGO as metadata 1258 IK.getLanguage() != InputKind::LLVM_IR) 1259 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1260 << "-fdiagnostics-show-hotness"; 1261 1262 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1263 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1264 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1265 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1266 << "-fdiagnostics-hotness-threshold="; 1267 1268 // If the user requested to use a sample profile for PGO, then the 1269 // backend will need to track source location information so the profile 1270 // can be incorporated into the IR. 1271 if (UsingSampleProfile) 1272 NeedLocTracking = true; 1273 1274 // If the user requested a flag that requires source locations available in 1275 // the backend, make sure that the backend tracks source location information. 1276 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1277 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1278 1279 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1280 1281 // Parse -fsanitize-recover= arguments. 1282 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1283 parseSanitizerKinds("-fsanitize-recover=", 1284 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1285 Opts.SanitizeRecover); 1286 parseSanitizerKinds("-fsanitize-trap=", 1287 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1288 Opts.SanitizeTrap); 1289 1290 Opts.CudaGpuBinaryFileName = 1291 Args.getLastArgValue(OPT_fcuda_include_gpubinary); 1292 1293 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1294 1295 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1296 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1297 1298 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1299 1300 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1301 1302 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1303 StringRef SignScope = A->getValue(); 1304 1305 if (SignScope.equals_lower("none")) 1306 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1307 else if (SignScope.equals_lower("all")) 1308 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1309 else if (SignScope.equals_lower("non-leaf")) 1310 Opts.setSignReturnAddress( 1311 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1312 else 1313 Diags.Report(diag::err_drv_invalid_value) 1314 << A->getAsString(Args) << SignScope; 1315 1316 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1317 StringRef SignKey = A->getValue(); 1318 if (!SignScope.empty() && !SignKey.empty()) { 1319 if (SignKey.equals_lower("a_key")) 1320 Opts.setSignReturnAddressKey( 1321 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1322 else if (SignKey.equals_lower("b_key")) 1323 Opts.setSignReturnAddressKey( 1324 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1325 else 1326 Diags.Report(diag::err_drv_invalid_value) 1327 << A->getAsString(Args) << SignKey; 1328 } 1329 } 1330 } 1331 1332 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1333 1334 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1335 1336 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1337 1338 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1339 1340 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1341 1342 return Success; 1343 } 1344 1345 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1346 ArgList &Args) { 1347 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1348 Opts.Targets = Args.getAllArgValues(OPT_MT); 1349 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1350 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1351 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1352 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1353 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1354 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1355 if (Args.hasArg(OPT_show_includes)) { 1356 // Writing both /showIncludes and preprocessor output to stdout 1357 // would produce interleaved output, so use stderr for /showIncludes. 1358 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1359 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1360 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1361 else 1362 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1363 } else { 1364 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1365 } 1366 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1367 Opts.ModuleDependencyOutputDir = 1368 Args.getLastArgValue(OPT_module_dependency_dir); 1369 if (Args.hasArg(OPT_MV)) 1370 Opts.OutputFormat = DependencyOutputFormat::NMake; 1371 // Add sanitizer blacklists as extra dependencies. 1372 // They won't be discovered by the regular preprocessor, so 1373 // we let make / ninja to know about this implicit dependency. 1374 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1375 // Only the -fmodule-file=<file> form. 1376 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1377 StringRef Val = A->getValue(); 1378 if (Val.find('=') == StringRef::npos) 1379 Opts.ExtraDeps.push_back(Val); 1380 } 1381 } 1382 1383 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1384 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1385 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1386 // Support both clang's -f[no-]color-diagnostics and gcc's 1387 // -f[no-]diagnostics-colors[=never|always|auto]. 1388 enum { 1389 Colors_On, 1390 Colors_Off, 1391 Colors_Auto 1392 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1393 for (auto *A : Args) { 1394 const Option &O = A->getOption(); 1395 if (O.matches(options::OPT_fcolor_diagnostics) || 1396 O.matches(options::OPT_fdiagnostics_color)) { 1397 ShowColors = Colors_On; 1398 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1399 O.matches(options::OPT_fno_diagnostics_color)) { 1400 ShowColors = Colors_Off; 1401 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1402 StringRef Value(A->getValue()); 1403 if (Value == "always") 1404 ShowColors = Colors_On; 1405 else if (Value == "never") 1406 ShowColors = Colors_Off; 1407 else if (Value == "auto") 1408 ShowColors = Colors_Auto; 1409 } 1410 } 1411 return ShowColors == Colors_On || 1412 (ShowColors == Colors_Auto && 1413 llvm::sys::Process::StandardErrHasColors()); 1414 } 1415 1416 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1417 DiagnosticsEngine *Diags) { 1418 bool Success = true; 1419 for (const auto &Prefix : VerifyPrefixes) { 1420 // Every prefix must start with a letter and contain only alphanumeric 1421 // characters, hyphens, and underscores. 1422 auto BadChar = llvm::find_if(Prefix, [](char C) { 1423 return !isAlphanumeric(C) && C != '-' && C != '_'; 1424 }); 1425 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1426 Success = false; 1427 if (Diags) { 1428 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1429 Diags->Report(diag::note_drv_verify_prefix_spelling); 1430 } 1431 } 1432 } 1433 return Success; 1434 } 1435 1436 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1437 DiagnosticsEngine *Diags, 1438 bool DefaultDiagColor, bool DefaultShowOpt) { 1439 bool Success = true; 1440 1441 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1442 if (Arg *A = 1443 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1444 Opts.DiagnosticSerializationFile = A->getValue(); 1445 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1446 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1447 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1448 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1449 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1450 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1451 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1452 OPT_fno_show_column, 1453 /*Default=*/true); 1454 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1455 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1456 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1457 Opts.ShowOptionNames = 1458 Args.hasFlag(OPT_fdiagnostics_show_option, 1459 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1460 1461 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1462 1463 // Default behavior is to not to show note include stacks. 1464 Opts.ShowNoteIncludeStack = false; 1465 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1466 OPT_fno_diagnostics_show_note_include_stack)) 1467 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1468 Opts.ShowNoteIncludeStack = true; 1469 1470 StringRef ShowOverloads = 1471 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1472 if (ShowOverloads == "best") 1473 Opts.setShowOverloads(Ovl_Best); 1474 else if (ShowOverloads == "all") 1475 Opts.setShowOverloads(Ovl_All); 1476 else { 1477 Success = false; 1478 if (Diags) 1479 Diags->Report(diag::err_drv_invalid_value) 1480 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1481 << ShowOverloads; 1482 } 1483 1484 StringRef ShowCategory = 1485 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1486 if (ShowCategory == "none") 1487 Opts.ShowCategories = 0; 1488 else if (ShowCategory == "id") 1489 Opts.ShowCategories = 1; 1490 else if (ShowCategory == "name") 1491 Opts.ShowCategories = 2; 1492 else { 1493 Success = false; 1494 if (Diags) 1495 Diags->Report(diag::err_drv_invalid_value) 1496 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1497 << ShowCategory; 1498 } 1499 1500 StringRef Format = 1501 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1502 if (Format == "clang") 1503 Opts.setFormat(DiagnosticOptions::Clang); 1504 else if (Format == "msvc") 1505 Opts.setFormat(DiagnosticOptions::MSVC); 1506 else if (Format == "msvc-fallback") { 1507 Opts.setFormat(DiagnosticOptions::MSVC); 1508 Opts.CLFallbackMode = true; 1509 } else if (Format == "vi") 1510 Opts.setFormat(DiagnosticOptions::Vi); 1511 else { 1512 Success = false; 1513 if (Diags) 1514 Diags->Report(diag::err_drv_invalid_value) 1515 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1516 << Format; 1517 } 1518 1519 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1520 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1521 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1522 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1523 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1524 if (Args.hasArg(OPT_verify)) 1525 Opts.VerifyPrefixes.push_back("expected"); 1526 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1527 // then sort it to prepare for fast lookup using std::binary_search. 1528 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1529 Opts.VerifyDiagnostics = false; 1530 Success = false; 1531 } 1532 else 1533 llvm::sort(Opts.VerifyPrefixes); 1534 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1535 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1536 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1537 Diags, DiagMask); 1538 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1539 DiagMask = DiagnosticLevelMask::All; 1540 Opts.setVerifyIgnoreUnexpected(DiagMask); 1541 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1542 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1543 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1544 Opts.MacroBacktraceLimit = 1545 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1546 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1547 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1548 Args, OPT_ftemplate_backtrace_limit, 1549 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1550 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1551 Args, OPT_fconstexpr_backtrace_limit, 1552 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1553 Opts.SpellCheckingLimit = getLastArgIntValue( 1554 Args, OPT_fspell_checking_limit, 1555 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1556 Opts.SnippetLineLimit = getLastArgIntValue( 1557 Args, OPT_fcaret_diagnostics_max_lines, 1558 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1559 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1560 DiagnosticOptions::DefaultTabStop, Diags); 1561 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1562 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1563 if (Diags) 1564 Diags->Report(diag::warn_ignoring_ftabstop_value) 1565 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1566 } 1567 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1568 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1569 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1570 1571 return Success; 1572 } 1573 1574 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1575 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1576 } 1577 1578 /// Parse the argument to the -ftest-module-file-extension 1579 /// command-line argument. 1580 /// 1581 /// \returns true on error, false on success. 1582 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1583 std::string &BlockName, 1584 unsigned &MajorVersion, 1585 unsigned &MinorVersion, 1586 bool &Hashed, 1587 std::string &UserInfo) { 1588 SmallVector<StringRef, 5> Args; 1589 Arg.split(Args, ':', 5); 1590 if (Args.size() < 5) 1591 return true; 1592 1593 BlockName = Args[0]; 1594 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1595 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1596 if (Args[3].getAsInteger(2, Hashed)) return true; 1597 if (Args.size() > 4) 1598 UserInfo = Args[4]; 1599 return false; 1600 } 1601 1602 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1603 DiagnosticsEngine &Diags, 1604 bool &IsHeaderFile) { 1605 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1606 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1607 switch (A->getOption().getID()) { 1608 default: 1609 llvm_unreachable("Invalid option in group!"); 1610 case OPT_ast_list: 1611 Opts.ProgramAction = frontend::ASTDeclList; break; 1612 case OPT_ast_dump_all_EQ: 1613 case OPT_ast_dump_EQ: { 1614 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1615 .CaseLower("default", ADOF_Default) 1616 .CaseLower("json", ADOF_JSON) 1617 .Default(std::numeric_limits<unsigned>::max()); 1618 1619 if (Val != std::numeric_limits<unsigned>::max()) 1620 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1621 else { 1622 Diags.Report(diag::err_drv_invalid_value) 1623 << A->getAsString(Args) << A->getValue(); 1624 Opts.ASTDumpFormat = ADOF_Default; 1625 } 1626 LLVM_FALLTHROUGH; 1627 } 1628 case OPT_ast_dump: 1629 case OPT_ast_dump_all: 1630 case OPT_ast_dump_lookups: 1631 Opts.ProgramAction = frontend::ASTDump; break; 1632 case OPT_ast_print: 1633 Opts.ProgramAction = frontend::ASTPrint; break; 1634 case OPT_ast_view: 1635 Opts.ProgramAction = frontend::ASTView; break; 1636 case OPT_compiler_options_dump: 1637 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1638 case OPT_dump_raw_tokens: 1639 Opts.ProgramAction = frontend::DumpRawTokens; break; 1640 case OPT_dump_tokens: 1641 Opts.ProgramAction = frontend::DumpTokens; break; 1642 case OPT_S: 1643 Opts.ProgramAction = frontend::EmitAssembly; break; 1644 case OPT_emit_llvm_bc: 1645 Opts.ProgramAction = frontend::EmitBC; break; 1646 case OPT_emit_html: 1647 Opts.ProgramAction = frontend::EmitHTML; break; 1648 case OPT_emit_llvm: 1649 Opts.ProgramAction = frontend::EmitLLVM; break; 1650 case OPT_emit_llvm_only: 1651 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1652 case OPT_emit_codegen_only: 1653 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1654 case OPT_emit_obj: 1655 Opts.ProgramAction = frontend::EmitObj; break; 1656 case OPT_fixit_EQ: 1657 Opts.FixItSuffix = A->getValue(); 1658 LLVM_FALLTHROUGH; 1659 case OPT_fixit: 1660 Opts.ProgramAction = frontend::FixIt; break; 1661 case OPT_emit_module: 1662 Opts.ProgramAction = frontend::GenerateModule; break; 1663 case OPT_emit_module_interface: 1664 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1665 case OPT_emit_header_module: 1666 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1667 case OPT_emit_pch: 1668 Opts.ProgramAction = frontend::GeneratePCH; break; 1669 case OPT_init_only: 1670 Opts.ProgramAction = frontend::InitOnly; break; 1671 case OPT_fsyntax_only: 1672 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1673 case OPT_module_file_info: 1674 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1675 case OPT_verify_pch: 1676 Opts.ProgramAction = frontend::VerifyPCH; break; 1677 case OPT_print_preamble: 1678 Opts.ProgramAction = frontend::PrintPreamble; break; 1679 case OPT_E: 1680 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1681 case OPT_templight_dump: 1682 Opts.ProgramAction = frontend::TemplightDump; break; 1683 case OPT_rewrite_macros: 1684 Opts.ProgramAction = frontend::RewriteMacros; break; 1685 case OPT_rewrite_objc: 1686 Opts.ProgramAction = frontend::RewriteObjC; break; 1687 case OPT_rewrite_test: 1688 Opts.ProgramAction = frontend::RewriteTest; break; 1689 case OPT_analyze: 1690 Opts.ProgramAction = frontend::RunAnalysis; break; 1691 case OPT_migrate: 1692 Opts.ProgramAction = frontend::MigrateSource; break; 1693 case OPT_Eonly: 1694 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1695 } 1696 } 1697 1698 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1699 Opts.Plugins.emplace_back(A->getValue(0)); 1700 Opts.ProgramAction = frontend::PluginAction; 1701 Opts.ActionName = A->getValue(); 1702 } 1703 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1704 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1705 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1706 1707 for (const std::string &Arg : 1708 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1709 std::string BlockName; 1710 unsigned MajorVersion; 1711 unsigned MinorVersion; 1712 bool Hashed; 1713 std::string UserInfo; 1714 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1715 MinorVersion, Hashed, UserInfo)) { 1716 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1717 1718 continue; 1719 } 1720 1721 // Add the testing module file extension. 1722 Opts.ModuleFileExtensions.push_back( 1723 std::make_shared<TestModuleFileExtension>( 1724 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1725 } 1726 1727 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1728 Opts.CodeCompletionAt = 1729 ParsedSourceLocation::FromString(A->getValue()); 1730 if (Opts.CodeCompletionAt.FileName.empty()) 1731 Diags.Report(diag::err_drv_invalid_value) 1732 << A->getAsString(Args) << A->getValue(); 1733 } 1734 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1735 1736 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1737 Opts.Plugins = Args.getAllArgValues(OPT_load); 1738 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1739 Opts.ShowHelp = Args.hasArg(OPT_help); 1740 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1741 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1742 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1743 Opts.ShowVersion = Args.hasArg(OPT_version); 1744 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1745 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1746 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1747 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1748 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1749 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1750 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1751 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1752 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1753 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1754 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1755 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1756 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1757 // Only the -fmodule-file=<file> form. 1758 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1759 StringRef Val = A->getValue(); 1760 if (Val.find('=') == StringRef::npos) 1761 Opts.ModuleFiles.push_back(Val); 1762 } 1763 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1764 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1765 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1766 1767 Opts.CodeCompleteOpts.IncludeMacros 1768 = Args.hasArg(OPT_code_completion_macros); 1769 Opts.CodeCompleteOpts.IncludeCodePatterns 1770 = Args.hasArg(OPT_code_completion_patterns); 1771 Opts.CodeCompleteOpts.IncludeGlobals 1772 = !Args.hasArg(OPT_no_code_completion_globals); 1773 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1774 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1775 Opts.CodeCompleteOpts.IncludeBriefComments 1776 = Args.hasArg(OPT_code_completion_brief_comments); 1777 Opts.CodeCompleteOpts.IncludeFixIts 1778 = Args.hasArg(OPT_code_completion_with_fixits); 1779 1780 Opts.OverrideRecordLayoutsFile 1781 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1782 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple); 1783 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1784 1785 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1786 OPT_arcmt_modify, 1787 OPT_arcmt_migrate)) { 1788 switch (A->getOption().getID()) { 1789 default: 1790 llvm_unreachable("missed a case"); 1791 case OPT_arcmt_check: 1792 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1793 break; 1794 case OPT_arcmt_modify: 1795 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1796 break; 1797 case OPT_arcmt_migrate: 1798 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1799 break; 1800 } 1801 } 1802 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1803 Opts.ARCMTMigrateReportOut 1804 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1805 Opts.ARCMTMigrateEmitARCErrors 1806 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1807 1808 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1809 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1810 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1811 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1812 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1813 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1814 if (Args.hasArg(OPT_objcmt_migrate_property)) 1815 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1816 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1817 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1818 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1819 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1820 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1821 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1822 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1823 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1824 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1825 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1826 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1827 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1828 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1829 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1830 if (Args.hasArg(OPT_objcmt_atomic_property)) 1831 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1832 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1833 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1834 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1835 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1836 if (Args.hasArg(OPT_objcmt_migrate_all)) 1837 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1838 1839 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1840 1841 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1842 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1843 Diags.Report(diag::err_drv_argument_not_allowed_with) 1844 << "ARC migration" << "ObjC migration"; 1845 } 1846 1847 InputKind DashX(InputKind::Unknown); 1848 if (const Arg *A = Args.getLastArg(OPT_x)) { 1849 StringRef XValue = A->getValue(); 1850 1851 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1852 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1853 bool Preprocessed = XValue.consume_back("-cpp-output"); 1854 bool ModuleMap = XValue.consume_back("-module-map"); 1855 IsHeaderFile = 1856 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1857 1858 // Principal languages. 1859 DashX = llvm::StringSwitch<InputKind>(XValue) 1860 .Case("c", InputKind::C) 1861 .Case("cl", InputKind::OpenCL) 1862 .Case("cuda", InputKind::CUDA) 1863 .Case("hip", InputKind::HIP) 1864 .Case("c++", InputKind::CXX) 1865 .Case("objective-c", InputKind::ObjC) 1866 .Case("objective-c++", InputKind::ObjCXX) 1867 .Case("renderscript", InputKind::RenderScript) 1868 .Default(InputKind::Unknown); 1869 1870 // "objc[++]-cpp-output" is an acceptable synonym for 1871 // "objective-c[++]-cpp-output". 1872 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1873 DashX = llvm::StringSwitch<InputKind>(XValue) 1874 .Case("objc", InputKind::ObjC) 1875 .Case("objc++", InputKind::ObjCXX) 1876 .Default(InputKind::Unknown); 1877 1878 // Some special cases cannot be combined with suffixes. 1879 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1880 DashX = llvm::StringSwitch<InputKind>(XValue) 1881 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1882 .Case("assembler-with-cpp", InputKind::Asm) 1883 .Cases("ast", "pcm", 1884 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1885 .Case("ir", InputKind::LLVM_IR) 1886 .Default(InputKind::Unknown); 1887 1888 if (DashX.isUnknown()) 1889 Diags.Report(diag::err_drv_invalid_value) 1890 << A->getAsString(Args) << A->getValue(); 1891 1892 if (Preprocessed) 1893 DashX = DashX.getPreprocessed(); 1894 if (ModuleMap) 1895 DashX = DashX.withFormat(InputKind::ModuleMap); 1896 } 1897 1898 // '-' is the default input if none is given. 1899 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1900 Opts.Inputs.clear(); 1901 if (Inputs.empty()) 1902 Inputs.push_back("-"); 1903 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1904 InputKind IK = DashX; 1905 if (IK.isUnknown()) { 1906 IK = FrontendOptions::getInputKindForExtension( 1907 StringRef(Inputs[i]).rsplit('.').second); 1908 // FIXME: Warn on this? 1909 if (IK.isUnknown()) 1910 IK = InputKind::C; 1911 // FIXME: Remove this hack. 1912 if (i == 0) 1913 DashX = IK; 1914 } 1915 1916 // The -emit-module action implicitly takes a module map. 1917 if (Opts.ProgramAction == frontend::GenerateModule && 1918 IK.getFormat() == InputKind::Source) 1919 IK = IK.withFormat(InputKind::ModuleMap); 1920 1921 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1922 } 1923 1924 return DashX; 1925 } 1926 1927 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1928 void *MainAddr) { 1929 std::string ClangExecutable = 1930 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1931 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 1932 } 1933 1934 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1935 const std::string &WorkingDir) { 1936 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1937 Opts.Verbose = Args.hasArg(OPT_v); 1938 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1939 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1940 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1941 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1942 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1943 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1944 1945 // Canonicalize -fmodules-cache-path before storing it. 1946 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1947 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1948 if (WorkingDir.empty()) 1949 llvm::sys::fs::make_absolute(P); 1950 else 1951 llvm::sys::fs::make_absolute(WorkingDir, P); 1952 } 1953 llvm::sys::path::remove_dots(P); 1954 Opts.ModuleCachePath = P.str(); 1955 1956 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1957 // Only the -fmodule-file=<name>=<file> form. 1958 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1959 StringRef Val = A->getValue(); 1960 if (Val.find('=') != StringRef::npos) 1961 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1962 } 1963 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 1964 Opts.AddPrebuiltModulePath(A->getValue()); 1965 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1966 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1967 Opts.ModulesValidateDiagnosticOptions = 1968 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1969 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1970 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1971 Opts.ModuleCachePruneInterval = 1972 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1973 Opts.ModuleCachePruneAfter = 1974 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1975 Opts.ModulesValidateOncePerBuildSession = 1976 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1977 Opts.BuildSessionTimestamp = 1978 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1979 Opts.ModulesValidateSystemHeaders = 1980 Args.hasArg(OPT_fmodules_validate_system_headers); 1981 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1982 Opts.ModuleFormat = A->getValue(); 1983 1984 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1985 StringRef MacroDef = A->getValue(); 1986 Opts.ModulesIgnoreMacros.insert( 1987 llvm::CachedHashString(MacroDef.split('=').first)); 1988 } 1989 1990 // Add -I..., -F..., and -index-header-map options in order. 1991 bool IsIndexHeaderMap = false; 1992 bool IsSysrootSpecified = 1993 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1994 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1995 if (A->getOption().matches(OPT_index_header_map)) { 1996 // -index-header-map applies to the next -I or -F. 1997 IsIndexHeaderMap = true; 1998 continue; 1999 } 2000 2001 frontend::IncludeDirGroup Group = 2002 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2003 2004 bool IsFramework = A->getOption().matches(OPT_F); 2005 std::string Path = A->getValue(); 2006 2007 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2008 SmallString<32> Buffer; 2009 llvm::sys::path::append(Buffer, Opts.Sysroot, 2010 llvm::StringRef(A->getValue()).substr(1)); 2011 Path = Buffer.str(); 2012 } 2013 2014 Opts.AddPath(Path, Group, IsFramework, 2015 /*IgnoreSysroot*/ true); 2016 IsIndexHeaderMap = false; 2017 } 2018 2019 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2020 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2021 for (const auto *A : 2022 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2023 if (A->getOption().matches(OPT_iprefix)) 2024 Prefix = A->getValue(); 2025 else if (A->getOption().matches(OPT_iwithprefix)) 2026 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2027 else 2028 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2029 } 2030 2031 for (const auto *A : Args.filtered(OPT_idirafter)) 2032 Opts.AddPath(A->getValue(), frontend::After, false, true); 2033 for (const auto *A : Args.filtered(OPT_iquote)) 2034 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2035 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2036 Opts.AddPath(A->getValue(), frontend::System, false, 2037 !A->getOption().matches(OPT_iwithsysroot)); 2038 for (const auto *A : Args.filtered(OPT_iframework)) 2039 Opts.AddPath(A->getValue(), frontend::System, true, true); 2040 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2041 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2042 /*IgnoreSysRoot=*/false); 2043 2044 // Add the paths for the various language specific isystem flags. 2045 for (const auto *A : Args.filtered(OPT_c_isystem)) 2046 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2047 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2048 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2049 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2050 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2051 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2052 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2053 2054 // Add the internal paths from a driver that detects standard include paths. 2055 for (const auto *A : 2056 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2057 frontend::IncludeDirGroup Group = frontend::System; 2058 if (A->getOption().matches(OPT_internal_externc_isystem)) 2059 Group = frontend::ExternCSystem; 2060 Opts.AddPath(A->getValue(), Group, false, true); 2061 } 2062 2063 // Add the path prefixes which are implicitly treated as being system headers. 2064 for (const auto *A : 2065 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2066 Opts.AddSystemHeaderPrefix( 2067 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2068 2069 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2070 Opts.AddVFSOverlayFile(A->getValue()); 2071 } 2072 2073 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2074 const llvm::Triple &T, 2075 PreprocessorOptions &PPOpts, 2076 LangStandard::Kind LangStd) { 2077 // Set some properties which depend solely on the input kind; it would be nice 2078 // to move these to the language standard, and have the driver resolve the 2079 // input kind + language standard. 2080 // 2081 // FIXME: Perhaps a better model would be for a single source file to have 2082 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2083 // simultaneously active? 2084 if (IK.getLanguage() == InputKind::Asm) { 2085 Opts.AsmPreprocessor = 1; 2086 } else if (IK.isObjectiveC()) { 2087 Opts.ObjC = 1; 2088 } 2089 2090 if (LangStd == LangStandard::lang_unspecified) { 2091 // Based on the base language, pick one. 2092 switch (IK.getLanguage()) { 2093 case InputKind::Unknown: 2094 case InputKind::LLVM_IR: 2095 llvm_unreachable("Invalid input kind!"); 2096 case InputKind::OpenCL: 2097 LangStd = LangStandard::lang_opencl10; 2098 break; 2099 case InputKind::CUDA: 2100 LangStd = LangStandard::lang_cuda; 2101 break; 2102 case InputKind::Asm: 2103 case InputKind::C: 2104 #if defined(CLANG_DEFAULT_STD_C) 2105 LangStd = CLANG_DEFAULT_STD_C; 2106 #else 2107 // The PS4 uses C99 as the default C standard. 2108 if (T.isPS4()) 2109 LangStd = LangStandard::lang_gnu99; 2110 else 2111 LangStd = LangStandard::lang_gnu11; 2112 #endif 2113 break; 2114 case InputKind::ObjC: 2115 #if defined(CLANG_DEFAULT_STD_C) 2116 LangStd = CLANG_DEFAULT_STD_C; 2117 #else 2118 LangStd = LangStandard::lang_gnu11; 2119 #endif 2120 break; 2121 case InputKind::CXX: 2122 case InputKind::ObjCXX: 2123 #if defined(CLANG_DEFAULT_STD_CXX) 2124 LangStd = CLANG_DEFAULT_STD_CXX; 2125 #else 2126 LangStd = LangStandard::lang_gnucxx14; 2127 #endif 2128 break; 2129 case InputKind::RenderScript: 2130 LangStd = LangStandard::lang_c99; 2131 break; 2132 case InputKind::HIP: 2133 LangStd = LangStandard::lang_hip; 2134 break; 2135 } 2136 } 2137 2138 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2139 Opts.LineComment = Std.hasLineComments(); 2140 Opts.C99 = Std.isC99(); 2141 Opts.C11 = Std.isC11(); 2142 Opts.C17 = Std.isC17(); 2143 Opts.C2x = Std.isC2x(); 2144 Opts.CPlusPlus = Std.isCPlusPlus(); 2145 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2146 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2147 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2148 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2149 Opts.Digraphs = Std.hasDigraphs(); 2150 Opts.GNUMode = Std.isGNUMode(); 2151 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2152 Opts.HexFloats = Std.hasHexFloats(); 2153 Opts.ImplicitInt = Std.hasImplicitInt(); 2154 2155 // Set OpenCL Version. 2156 Opts.OpenCL = Std.isOpenCL(); 2157 if (LangStd == LangStandard::lang_opencl10) 2158 Opts.OpenCLVersion = 100; 2159 else if (LangStd == LangStandard::lang_opencl11) 2160 Opts.OpenCLVersion = 110; 2161 else if (LangStd == LangStandard::lang_opencl12) 2162 Opts.OpenCLVersion = 120; 2163 else if (LangStd == LangStandard::lang_opencl20) 2164 Opts.OpenCLVersion = 200; 2165 else if (LangStd == LangStandard::lang_openclcpp) 2166 Opts.OpenCLCPlusPlusVersion = 100; 2167 2168 // OpenCL has some additional defaults. 2169 if (Opts.OpenCL) { 2170 Opts.AltiVec = 0; 2171 Opts.ZVector = 0; 2172 Opts.LaxVectorConversions = 0; 2173 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2174 Opts.NativeHalfType = 1; 2175 Opts.NativeHalfArgsAndReturns = 1; 2176 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2177 // Include default header file for OpenCL. 2178 if (Opts.IncludeDefaultHeader) { 2179 PPOpts.Includes.push_back("opencl-c.h"); 2180 } 2181 } 2182 2183 Opts.HIP = IK.getLanguage() == InputKind::HIP; 2184 Opts.CUDA = IK.getLanguage() == InputKind::CUDA || Opts.HIP; 2185 if (Opts.CUDA) 2186 // Set default FP_CONTRACT to FAST. 2187 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2188 2189 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 2190 if (Opts.RenderScript) { 2191 Opts.NativeHalfType = 1; 2192 Opts.NativeHalfArgsAndReturns = 1; 2193 } 2194 2195 // OpenCL and C++ both have bool, true, false keywords. 2196 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2197 2198 // OpenCL has half keyword 2199 Opts.Half = Opts.OpenCL; 2200 2201 // C++ has wchar_t keyword. 2202 Opts.WChar = Opts.CPlusPlus; 2203 2204 Opts.GNUKeywords = Opts.GNUMode; 2205 Opts.CXXOperatorNames = Opts.CPlusPlus; 2206 2207 Opts.AlignedAllocation = Opts.CPlusPlus17; 2208 2209 Opts.DollarIdents = !Opts.AsmPreprocessor; 2210 2211 // Enable [[]] attributes in C++11 and C2x by default. 2212 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2213 } 2214 2215 /// Attempt to parse a visibility value out of the given argument. 2216 static Visibility parseVisibility(Arg *arg, ArgList &args, 2217 DiagnosticsEngine &diags) { 2218 StringRef value = arg->getValue(); 2219 if (value == "default") { 2220 return DefaultVisibility; 2221 } else if (value == "hidden" || value == "internal") { 2222 return HiddenVisibility; 2223 } else if (value == "protected") { 2224 // FIXME: diagnose if target does not support protected visibility 2225 return ProtectedVisibility; 2226 } 2227 2228 diags.Report(diag::err_drv_invalid_value) 2229 << arg->getAsString(args) << value; 2230 return DefaultVisibility; 2231 } 2232 2233 /// Check if input file kind and language standard are compatible. 2234 static bool IsInputCompatibleWithStandard(InputKind IK, 2235 const LangStandard &S) { 2236 switch (IK.getLanguage()) { 2237 case InputKind::Unknown: 2238 case InputKind::LLVM_IR: 2239 llvm_unreachable("should not parse language flags for this input"); 2240 2241 case InputKind::C: 2242 case InputKind::ObjC: 2243 case InputKind::RenderScript: 2244 return S.getLanguage() == InputKind::C; 2245 2246 case InputKind::OpenCL: 2247 return S.getLanguage() == InputKind::OpenCL; 2248 2249 case InputKind::CXX: 2250 case InputKind::ObjCXX: 2251 return S.getLanguage() == InputKind::CXX; 2252 2253 case InputKind::CUDA: 2254 // FIXME: What -std= values should be permitted for CUDA compilations? 2255 return S.getLanguage() == InputKind::CUDA || 2256 S.getLanguage() == InputKind::CXX; 2257 2258 case InputKind::HIP: 2259 return S.getLanguage() == InputKind::CXX || 2260 S.getLanguage() == InputKind::HIP; 2261 2262 case InputKind::Asm: 2263 // Accept (and ignore) all -std= values. 2264 // FIXME: The -std= value is not ignored; it affects the tokenization 2265 // and preprocessing rules if we're preprocessing this asm input. 2266 return true; 2267 } 2268 2269 llvm_unreachable("unexpected input language"); 2270 } 2271 2272 /// Get language name for given input kind. 2273 static const StringRef GetInputKindName(InputKind IK) { 2274 switch (IK.getLanguage()) { 2275 case InputKind::C: 2276 return "C"; 2277 case InputKind::ObjC: 2278 return "Objective-C"; 2279 case InputKind::CXX: 2280 return "C++"; 2281 case InputKind::ObjCXX: 2282 return "Objective-C++"; 2283 case InputKind::OpenCL: 2284 return "OpenCL"; 2285 case InputKind::CUDA: 2286 return "CUDA"; 2287 case InputKind::RenderScript: 2288 return "RenderScript"; 2289 case InputKind::HIP: 2290 return "HIP"; 2291 2292 case InputKind::Asm: 2293 return "Asm"; 2294 case InputKind::LLVM_IR: 2295 return "LLVM IR"; 2296 2297 case InputKind::Unknown: 2298 break; 2299 } 2300 llvm_unreachable("unknown input language"); 2301 } 2302 2303 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2304 const TargetOptions &TargetOpts, 2305 PreprocessorOptions &PPOpts, 2306 DiagnosticsEngine &Diags) { 2307 // FIXME: Cleanup per-file based stuff. 2308 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2309 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2310 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2311 #define LANGSTANDARD(id, name, lang, desc, features) \ 2312 .Case(name, LangStandard::lang_##id) 2313 #define LANGSTANDARD_ALIAS(id, alias) \ 2314 .Case(alias, LangStandard::lang_##id) 2315 #include "clang/Frontend/LangStandards.def" 2316 .Default(LangStandard::lang_unspecified); 2317 if (LangStd == LangStandard::lang_unspecified) { 2318 Diags.Report(diag::err_drv_invalid_value) 2319 << A->getAsString(Args) << A->getValue(); 2320 // Report supported standards with short description. 2321 for (unsigned KindValue = 0; 2322 KindValue != LangStandard::lang_unspecified; 2323 ++KindValue) { 2324 const LangStandard &Std = LangStandard::getLangStandardForKind( 2325 static_cast<LangStandard::Kind>(KindValue)); 2326 if (IsInputCompatibleWithStandard(IK, Std)) { 2327 auto Diag = Diags.Report(diag::note_drv_use_standard); 2328 Diag << Std.getName() << Std.getDescription(); 2329 unsigned NumAliases = 0; 2330 #define LANGSTANDARD(id, name, lang, desc, features) 2331 #define LANGSTANDARD_ALIAS(id, alias) \ 2332 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2333 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2334 #include "clang/Frontend/LangStandards.def" 2335 Diag << NumAliases; 2336 #define LANGSTANDARD(id, name, lang, desc, features) 2337 #define LANGSTANDARD_ALIAS(id, alias) \ 2338 if (KindValue == LangStandard::lang_##id) Diag << alias; 2339 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2340 #include "clang/Frontend/LangStandards.def" 2341 } 2342 } 2343 } else { 2344 // Valid standard, check to make sure language and standard are 2345 // compatible. 2346 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2347 if (!IsInputCompatibleWithStandard(IK, Std)) { 2348 Diags.Report(diag::err_drv_argument_not_allowed_with) 2349 << A->getAsString(Args) << GetInputKindName(IK); 2350 } 2351 } 2352 } 2353 2354 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2355 Opts.DllExportInlines = false; 2356 2357 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2358 StringRef Name = A->getValue(); 2359 if (Name == "full" || Name == "branch") { 2360 Opts.CFProtectionBranch = 1; 2361 } 2362 } 2363 // -cl-std only applies for OpenCL language standards. 2364 // Override the -std option in this case. 2365 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2366 LangStandard::Kind OpenCLLangStd 2367 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2368 .Cases("cl", "CL", LangStandard::lang_opencl10) 2369 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2370 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2371 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2372 .Case("c++", LangStandard::lang_openclcpp) 2373 .Default(LangStandard::lang_unspecified); 2374 2375 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2376 Diags.Report(diag::err_drv_invalid_value) 2377 << A->getAsString(Args) << A->getValue(); 2378 } 2379 else 2380 LangStd = OpenCLLangStd; 2381 } 2382 2383 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2384 2385 llvm::Triple T(TargetOpts.Triple); 2386 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2387 2388 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2389 // This option should be deprecated for CL > 1.0 because 2390 // this option was added for compatibility with OpenCL 1.0. 2391 if (Args.getLastArg(OPT_cl_strict_aliasing) 2392 && Opts.OpenCLVersion > 100) { 2393 Diags.Report(diag::warn_option_invalid_ocl_version) 2394 << Opts.getOpenCLVersionTuple().getAsString() 2395 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2396 } 2397 2398 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2399 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2400 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2401 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2402 // name, as it doesn't seem a useful distinction. 2403 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2404 Opts.GNUKeywords); 2405 2406 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2407 2408 if (Args.hasArg(OPT_fno_operator_names)) 2409 Opts.CXXOperatorNames = 0; 2410 2411 if (Args.hasArg(OPT_fcuda_is_device)) 2412 Opts.CUDAIsDevice = 1; 2413 2414 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2415 Opts.CUDAAllowVariadicFunctions = 1; 2416 2417 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2418 Opts.CUDAHostDeviceConstexpr = 0; 2419 2420 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2421 Opts.CUDADeviceApproxTranscendentals = 1; 2422 2423 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2424 2425 if (Opts.ObjC) { 2426 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2427 StringRef value = arg->getValue(); 2428 if (Opts.ObjCRuntime.tryParse(value)) 2429 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2430 } 2431 2432 if (Args.hasArg(OPT_fobjc_gc_only)) 2433 Opts.setGC(LangOptions::GCOnly); 2434 else if (Args.hasArg(OPT_fobjc_gc)) 2435 Opts.setGC(LangOptions::HybridGC); 2436 else if (Args.hasArg(OPT_fobjc_arc)) { 2437 Opts.ObjCAutoRefCount = 1; 2438 if (!Opts.ObjCRuntime.allowsARC()) 2439 Diags.Report(diag::err_arc_unsupported_on_runtime); 2440 } 2441 2442 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2443 // whether the feature is actually enabled. This is predominantly 2444 // determined by -fobjc-runtime, but we allow it to be overridden 2445 // from the command line for testing purposes. 2446 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2447 Opts.ObjCWeakRuntime = 1; 2448 else 2449 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2450 2451 // ObjCWeak determines whether __weak is actually enabled. 2452 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2453 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2454 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2455 assert(!Opts.ObjCWeak); 2456 } else if (Opts.getGC() != LangOptions::NonGC) { 2457 Diags.Report(diag::err_objc_weak_with_gc); 2458 } else if (!Opts.ObjCWeakRuntime) { 2459 Diags.Report(diag::err_objc_weak_unsupported); 2460 } else { 2461 Opts.ObjCWeak = 1; 2462 } 2463 } else if (Opts.ObjCAutoRefCount) { 2464 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2465 } 2466 2467 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2468 Opts.ObjCInferRelatedResultType = 0; 2469 2470 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2471 Opts.ObjCSubscriptingLegacyRuntime = 2472 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2473 } 2474 2475 if (Args.hasArg(OPT_fgnu89_inline)) { 2476 if (Opts.CPlusPlus) 2477 Diags.Report(diag::err_drv_argument_not_allowed_with) 2478 << "-fgnu89-inline" << GetInputKindName(IK); 2479 else 2480 Opts.GNUInline = 1; 2481 } 2482 2483 if (Args.hasArg(OPT_fapple_kext)) { 2484 if (!Opts.CPlusPlus) 2485 Diags.Report(diag::warn_c_kext); 2486 else 2487 Opts.AppleKext = 1; 2488 } 2489 2490 if (Args.hasArg(OPT_print_ivar_layout)) 2491 Opts.ObjCGCBitmapPrint = 1; 2492 2493 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2494 Opts.NoConstantCFStrings = 1; 2495 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2496 Opts.CFRuntime = 2497 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2498 .Cases("unspecified", "standalone", "objc", 2499 LangOptions::CoreFoundationABI::ObjectiveC) 2500 .Cases("swift", "swift-5.0", 2501 LangOptions::CoreFoundationABI::Swift5_0) 2502 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2503 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2504 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2505 2506 if (Args.hasArg(OPT_fzvector)) 2507 Opts.ZVector = 1; 2508 2509 if (Args.hasArg(OPT_pthread)) 2510 Opts.POSIXThreads = 1; 2511 2512 // The value-visibility mode defaults to "default". 2513 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2514 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2515 } else { 2516 Opts.setValueVisibilityMode(DefaultVisibility); 2517 } 2518 2519 // The type-visibility mode defaults to the value-visibility mode. 2520 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2521 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2522 } else { 2523 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2524 } 2525 2526 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2527 Opts.InlineVisibilityHidden = 1; 2528 2529 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2530 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2531 2532 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2533 Opts.SetVisibilityForExternDecls = 1; 2534 2535 if (Args.hasArg(OPT_ftrapv)) { 2536 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2537 // Set the handler, if one is specified. 2538 Opts.OverflowHandler = 2539 Args.getLastArgValue(OPT_ftrapv_handler); 2540 } 2541 else if (Args.hasArg(OPT_fwrapv)) 2542 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2543 2544 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2545 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2546 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2547 Opts.MSCompatibilityVersion = 0; 2548 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2549 VersionTuple VT; 2550 if (VT.tryParse(A->getValue())) 2551 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2552 << A->getValue(); 2553 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2554 VT.getMinor().getValueOr(0) * 100000 + 2555 VT.getSubminor().getValueOr(0); 2556 } 2557 2558 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2559 // is specified, or -std is set to a conforming mode. 2560 // Trigraphs are disabled by default in c++1z onwards. 2561 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2562 Opts.Trigraphs = 2563 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2564 2565 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2566 OPT_fno_dollars_in_identifiers, 2567 Opts.DollarIdents); 2568 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2569 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2570 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2571 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2572 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2573 Opts.ConstStrings); 2574 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2575 Opts.LaxVectorConversions = 0; 2576 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2577 Opts.ThreadsafeStatics = 0; 2578 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2579 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2580 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2581 2582 // -ffixed-point 2583 Opts.FixedPoint = 2584 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2585 !Opts.CPlusPlus; 2586 Opts.PaddingOnUnsignedFixedPoint = 2587 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2588 OPT_fno_padding_on_unsigned_fixed_point, 2589 /*Default=*/false) && 2590 Opts.FixedPoint; 2591 2592 // Handle exception personalities 2593 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2594 options::OPT_fseh_exceptions, 2595 options::OPT_fdwarf_exceptions); 2596 if (A) { 2597 const Option &Opt = A->getOption(); 2598 llvm::Triple T(TargetOpts.Triple); 2599 if (T.isWindowsMSVCEnvironment()) 2600 Diags.Report(diag::err_fe_invalid_exception_model) 2601 << Opt.getName() << T.str(); 2602 2603 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2604 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2605 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2606 } 2607 2608 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2609 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2610 2611 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2612 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2613 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2614 && Opts.OpenCLVersion == 200); 2615 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2616 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2617 2618 Opts.DoubleSquareBracketAttributes = 2619 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2620 OPT_fno_double_square_bracket_attributes, 2621 Opts.DoubleSquareBracketAttributes); 2622 2623 Opts.CPlusPlusModules = Opts.CPlusPlus2a; 2624 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2625 Opts.Modules = 2626 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2627 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2628 Opts.ModulesDeclUse = 2629 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2630 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2631 // enter a different module (eg, when building a header unit). 2632 Opts.ModulesLocalVisibility = 2633 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2634 Opts.CPlusPlusModules; 2635 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2636 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2637 Opts.ModulesSearchAll = Opts.Modules && 2638 !Args.hasArg(OPT_fno_modules_search_all) && 2639 Args.hasArg(OPT_fmodules_search_all); 2640 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2641 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2642 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2643 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2644 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2645 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2646 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2647 .Case("char", 1) 2648 .Case("short", 2) 2649 .Case("int", 4) 2650 .Default(0); 2651 if (Opts.WCharSize == 0) 2652 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2653 } 2654 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2655 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2656 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2657 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2658 if (!Opts.NoBuiltin) 2659 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2660 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2661 Opts.RelaxedTemplateTemplateArgs = 2662 Args.hasArg(OPT_frelaxed_template_template_args); 2663 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2664 Opts.AlignedAllocation = 2665 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2666 Opts.AlignedAllocation); 2667 Opts.AlignedAllocationUnavailable = 2668 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2669 Opts.NewAlignOverride = 2670 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2671 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2672 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2673 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2674 << A->getValue(); 2675 Opts.NewAlignOverride = 0; 2676 } 2677 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2678 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2679 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2680 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2681 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2682 Opts.InstantiationDepth = 2683 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2684 Opts.ArrowDepth = 2685 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2686 Opts.ConstexprCallDepth = 2687 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2688 Opts.ConstexprStepLimit = 2689 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2690 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2691 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2692 Opts.NumLargeByValueCopy = 2693 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2694 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2695 Opts.ObjCConstantStringClass = 2696 Args.getLastArgValue(OPT_fconstant_string_class); 2697 Opts.ObjCDefaultSynthProperties = 2698 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2699 Opts.EncodeExtendedBlockSig = 2700 Args.hasArg(OPT_fencode_extended_block_signature); 2701 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2702 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2703 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2704 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2705 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2706 Opts.ROPI = Args.hasArg(OPT_fropi); 2707 Opts.RWPI = Args.hasArg(OPT_frwpi); 2708 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2709 Opts.Static = Args.hasArg(OPT_static_define); 2710 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2711 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2712 || Args.hasArg(OPT_fdump_record_layouts); 2713 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2714 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2715 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2716 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2717 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2718 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2719 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2720 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2721 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2722 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2723 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2724 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2725 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ); 2726 Opts.CurrentModule = Opts.ModuleName; 2727 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2728 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2729 llvm::sort(Opts.ModuleFeatures); 2730 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2731 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2732 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2733 // is enabled. 2734 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2735 | Opts.NativeHalfArgsAndReturns; 2736 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2737 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2738 2739 // __declspec is enabled by default for the PS4 by the driver, and also 2740 // enabled for Microsoft Extensions or Borland Extensions, here. 2741 // 2742 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2743 // CUDA extension. However, it is required for supporting 2744 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2745 // been rewritten in terms of something more generic, remove the Opts.CUDA 2746 // term here. 2747 Opts.DeclSpecKeyword = 2748 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2749 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2750 2751 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2752 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2753 .Case("target", LangOptions::ASMM_Target) 2754 .Case("no", LangOptions::ASMM_Off) 2755 .Case("yes", LangOptions::ASMM_On) 2756 .Default(255)) { 2757 default: 2758 Diags.Report(diag::err_drv_invalid_value) 2759 << "-faddress-space-map-mangling=" << A->getValue(); 2760 break; 2761 case LangOptions::ASMM_Target: 2762 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2763 break; 2764 case LangOptions::ASMM_On: 2765 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2766 break; 2767 case LangOptions::ASMM_Off: 2768 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2769 break; 2770 } 2771 } 2772 2773 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2774 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2775 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2776 A->getValue()) 2777 .Case("single", 2778 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2779 .Case("multiple", 2780 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2781 .Case("virtual", 2782 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2783 .Default(LangOptions::PPTMK_BestCase); 2784 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2785 Diags.Report(diag::err_drv_invalid_value) 2786 << "-fms-memptr-rep=" << A->getValue(); 2787 2788 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2789 } 2790 2791 // Check for MS default calling conventions being specified. 2792 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2793 LangOptions::DefaultCallingConvention DefaultCC = 2794 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2795 .Case("cdecl", LangOptions::DCC_CDecl) 2796 .Case("fastcall", LangOptions::DCC_FastCall) 2797 .Case("stdcall", LangOptions::DCC_StdCall) 2798 .Case("vectorcall", LangOptions::DCC_VectorCall) 2799 .Case("regcall", LangOptions::DCC_RegCall) 2800 .Default(LangOptions::DCC_None); 2801 if (DefaultCC == LangOptions::DCC_None) 2802 Diags.Report(diag::err_drv_invalid_value) 2803 << "-fdefault-calling-conv=" << A->getValue(); 2804 2805 llvm::Triple T(TargetOpts.Triple); 2806 llvm::Triple::ArchType Arch = T.getArch(); 2807 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2808 DefaultCC == LangOptions::DCC_StdCall) && 2809 Arch != llvm::Triple::x86; 2810 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2811 DefaultCC == LangOptions::DCC_RegCall) && 2812 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2813 if (emitError) 2814 Diags.Report(diag::err_drv_argument_not_allowed_with) 2815 << A->getSpelling() << T.getTriple(); 2816 else 2817 Opts.setDefaultCallingConv(DefaultCC); 2818 } 2819 2820 // -mrtd option 2821 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2822 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2823 Diags.Report(diag::err_drv_argument_not_allowed_with) 2824 << A->getSpelling() << "-fdefault-calling-conv"; 2825 else { 2826 llvm::Triple T(TargetOpts.Triple); 2827 if (T.getArch() != llvm::Triple::x86) 2828 Diags.Report(diag::err_drv_argument_not_allowed_with) 2829 << A->getSpelling() << T.getTriple(); 2830 else 2831 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2832 } 2833 } 2834 2835 // Check if -fopenmp is specified. 2836 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2837 // Check if -fopenmp-simd is specified. 2838 bool IsSimdSpecified = 2839 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2840 /*Default=*/false); 2841 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2842 Opts.OpenMPUseTLS = 2843 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2844 Opts.OpenMPIsDevice = 2845 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2846 bool IsTargetSpecified = 2847 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2848 2849 if (Opts.OpenMP || Opts.OpenMPSimd) { 2850 if (int Version = getLastArgIntValue( 2851 Args, OPT_fopenmp_version_EQ, 2852 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 2853 Opts.OpenMP = Version; 2854 else if (IsSimdSpecified || IsTargetSpecified) 2855 Opts.OpenMP = 45; 2856 // Provide diagnostic when a given target is not expected to be an OpenMP 2857 // device or host. 2858 if (!Opts.OpenMPIsDevice) { 2859 switch (T.getArch()) { 2860 default: 2861 break; 2862 // Add unsupported host targets here: 2863 case llvm::Triple::nvptx: 2864 case llvm::Triple::nvptx64: 2865 Diags.Report(diag::err_drv_omp_host_target_not_supported) 2866 << TargetOpts.Triple; 2867 break; 2868 } 2869 } 2870 } 2871 2872 // Set the flag to prevent the implementation from emitting device exception 2873 // handling code for those requiring so. 2874 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 2875 Opts.Exceptions = 0; 2876 Opts.CXXExceptions = 0; 2877 } 2878 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2879 Opts.OpenMPCUDANumSMs = 2880 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 2881 Opts.OpenMPCUDANumSMs, Diags); 2882 Opts.OpenMPCUDABlocksPerSM = 2883 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 2884 Opts.OpenMPCUDABlocksPerSM, Diags); 2885 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 2886 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 2887 Opts.OpenMPCUDAReductionBufNum, Diags); 2888 } 2889 2890 // Prevent auto-widening the representation of loop counters during an 2891 // OpenMP collapse clause. 2892 Opts.OpenMPOptimisticCollapse = 2893 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 2894 2895 // Get the OpenMP target triples if any. 2896 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2897 2898 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2899 llvm::Triple TT(A->getValue(i)); 2900 2901 if (TT.getArch() == llvm::Triple::UnknownArch || 2902 !(TT.getArch() == llvm::Triple::ppc || 2903 TT.getArch() == llvm::Triple::ppc64 || 2904 TT.getArch() == llvm::Triple::ppc64le || 2905 TT.getArch() == llvm::Triple::nvptx || 2906 TT.getArch() == llvm::Triple::nvptx64 || 2907 TT.getArch() == llvm::Triple::x86 || 2908 TT.getArch() == llvm::Triple::x86_64)) 2909 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 2910 else 2911 Opts.OMPTargetTriples.push_back(TT); 2912 } 2913 } 2914 2915 // Get OpenMP host file path if any and report if a non existent file is 2916 // found 2917 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2918 Opts.OMPHostIRFile = A->getValue(); 2919 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2920 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 2921 << Opts.OMPHostIRFile; 2922 } 2923 2924 Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device); 2925 2926 // Set CUDA mode for OpenMP target NVPTX if specified in options 2927 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 2928 Args.hasArg(options::OPT_fopenmp_cuda_mode); 2929 2930 // Set CUDA mode for OpenMP target NVPTX if specified in options 2931 Opts.OpenMPCUDAForceFullRuntime = 2932 Opts.OpenMPIsDevice && T.isNVPTX() && 2933 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 2934 2935 // Record whether the __DEPRECATED define was requested. 2936 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2937 OPT_fno_deprecated_macro, 2938 Opts.Deprecated); 2939 2940 // FIXME: Eliminate this dependency. 2941 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2942 OptSize = getOptimizationLevelSize(Args); 2943 Opts.Optimize = Opt != 0; 2944 Opts.OptimizeSize = OptSize != 0; 2945 2946 // This is the __NO_INLINE__ define, which just depends on things like the 2947 // optimization level and -fno-inline, not actually whether the backend has 2948 // inlining enabled. 2949 Opts.NoInlineDefine = !Opts.Optimize; 2950 if (Arg *InlineArg = Args.getLastArg( 2951 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2952 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2953 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2954 Opts.NoInlineDefine = true; 2955 2956 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2957 Args.hasArg(OPT_cl_fast_relaxed_math); 2958 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2959 Args.hasArg(OPT_cl_finite_math_only) || 2960 Args.hasArg(OPT_cl_fast_relaxed_math); 2961 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2962 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2963 Args.hasArg(OPT_cl_fast_relaxed_math); 2964 2965 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2966 StringRef Val = A->getValue(); 2967 if (Val == "fast") 2968 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2969 else if (Val == "on") 2970 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2971 else if (Val == "off") 2972 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2973 else 2974 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2975 } 2976 2977 Opts.RetainCommentsFromSystemHeaders = 2978 Args.hasArg(OPT_fretain_comments_from_system_headers); 2979 2980 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2981 switch (SSP) { 2982 default: 2983 Diags.Report(diag::err_drv_invalid_value) 2984 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2985 break; 2986 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2987 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2988 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2989 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2990 } 2991 2992 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 2993 StringRef Val = A->getValue(); 2994 if (Val == "uninitialized") 2995 Opts.setTrivialAutoVarInit( 2996 LangOptions::TrivialAutoVarInitKind::Uninitialized); 2997 else if (Val == "zero") 2998 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 2999 else if (Val == "pattern") 3000 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3001 else 3002 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3003 } 3004 3005 // Parse -fsanitize= arguments. 3006 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3007 Diags, Opts.Sanitize); 3008 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3009 Opts.SanitizeAddressFieldPadding = 3010 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3011 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3012 3013 // -fxray-instrument 3014 Opts.XRayInstrument = 3015 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 3016 3017 // -fxray-always-emit-customevents 3018 Opts.XRayAlwaysEmitCustomEvents = 3019 Args.hasFlag(OPT_fxray_always_emit_customevents, 3020 OPT_fnoxray_always_emit_customevents, false); 3021 3022 // -fxray-always-emit-typedevents 3023 Opts.XRayAlwaysEmitTypedEvents = 3024 Args.hasFlag(OPT_fxray_always_emit_typedevents, 3025 OPT_fnoxray_always_emit_customevents, false); 3026 3027 // -fxray-{always,never}-instrument= filenames. 3028 Opts.XRayAlwaysInstrumentFiles = 3029 Args.getAllArgValues(OPT_fxray_always_instrument); 3030 Opts.XRayNeverInstrumentFiles = 3031 Args.getAllArgValues(OPT_fxray_never_instrument); 3032 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3033 3034 // -fforce-emit-vtables 3035 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3036 3037 // -fallow-editor-placeholders 3038 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3039 3040 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3041 3042 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3043 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3044 3045 StringRef Ver = A->getValue(); 3046 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3047 unsigned Major, Minor = 0; 3048 3049 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3050 // y or y.0 (4 <= y <= current version). 3051 if (!VerParts.first.startswith("0") && 3052 !VerParts.first.getAsInteger(10, Major) && 3053 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3054 (Major == 3 ? VerParts.second.size() == 1 && 3055 !VerParts.second.getAsInteger(10, Minor) 3056 : VerParts.first.size() == Ver.size() || 3057 VerParts.second == "0")) { 3058 // Got a valid version number. 3059 if (Major == 3 && Minor <= 8) 3060 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3061 else if (Major <= 4) 3062 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3063 else if (Major <= 6) 3064 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3065 else if (Major <= 7) 3066 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3067 } else if (Ver != "latest") { 3068 Diags.Report(diag::err_drv_invalid_value) 3069 << A->getAsString(Args) << A->getValue(); 3070 } 3071 } 3072 3073 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3074 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3075 } 3076 3077 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3078 switch (Action) { 3079 case frontend::ASTDeclList: 3080 case frontend::ASTDump: 3081 case frontend::ASTPrint: 3082 case frontend::ASTView: 3083 case frontend::EmitAssembly: 3084 case frontend::EmitBC: 3085 case frontend::EmitHTML: 3086 case frontend::EmitLLVM: 3087 case frontend::EmitLLVMOnly: 3088 case frontend::EmitCodeGenOnly: 3089 case frontend::EmitObj: 3090 case frontend::FixIt: 3091 case frontend::GenerateModule: 3092 case frontend::GenerateModuleInterface: 3093 case frontend::GenerateHeaderModule: 3094 case frontend::GeneratePCH: 3095 case frontend::ParseSyntaxOnly: 3096 case frontend::ModuleFileInfo: 3097 case frontend::VerifyPCH: 3098 case frontend::PluginAction: 3099 case frontend::RewriteObjC: 3100 case frontend::RewriteTest: 3101 case frontend::RunAnalysis: 3102 case frontend::TemplightDump: 3103 case frontend::MigrateSource: 3104 return false; 3105 3106 case frontend::DumpCompilerOptions: 3107 case frontend::DumpRawTokens: 3108 case frontend::DumpTokens: 3109 case frontend::InitOnly: 3110 case frontend::PrintPreamble: 3111 case frontend::PrintPreprocessedInput: 3112 case frontend::RewriteMacros: 3113 case frontend::RunPreprocessorOnly: 3114 return true; 3115 } 3116 llvm_unreachable("invalid frontend action"); 3117 } 3118 3119 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3120 DiagnosticsEngine &Diags, 3121 frontend::ActionKind Action) { 3122 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 3123 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3124 Args.hasArg(OPT_pch_through_hdrstop_use); 3125 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3126 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ); 3127 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3128 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3129 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3130 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3131 3132 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3133 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3134 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3135 3136 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3137 StringRef Value(A->getValue()); 3138 size_t Comma = Value.find(','); 3139 unsigned Bytes = 0; 3140 unsigned EndOfLine = 0; 3141 3142 if (Comma == StringRef::npos || 3143 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3144 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3145 Diags.Report(diag::err_drv_preamble_format); 3146 else { 3147 Opts.PrecompiledPreambleBytes.first = Bytes; 3148 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3149 } 3150 } 3151 3152 // Add the __CET__ macro if a CFProtection option is set. 3153 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3154 StringRef Name = A->getValue(); 3155 if (Name == "branch") 3156 Opts.addMacroDef("__CET__=1"); 3157 else if (Name == "return") 3158 Opts.addMacroDef("__CET__=2"); 3159 else if (Name == "full") 3160 Opts.addMacroDef("__CET__=3"); 3161 } 3162 3163 // Add macros from the command line. 3164 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3165 if (A->getOption().matches(OPT_D)) 3166 Opts.addMacroDef(A->getValue()); 3167 else 3168 Opts.addMacroUndef(A->getValue()); 3169 } 3170 3171 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3172 3173 // Add the ordered list of -includes. 3174 for (const auto *A : Args.filtered(OPT_include)) 3175 Opts.Includes.emplace_back(A->getValue()); 3176 3177 for (const auto *A : Args.filtered(OPT_chain_include)) 3178 Opts.ChainedIncludes.emplace_back(A->getValue()); 3179 3180 for (const auto *A : Args.filtered(OPT_remap_file)) { 3181 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3182 3183 if (Split.second.empty()) { 3184 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3185 continue; 3186 } 3187 3188 Opts.addRemappedFile(Split.first, Split.second); 3189 } 3190 3191 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3192 StringRef Name = A->getValue(); 3193 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3194 .Case("libc++", ARCXX_libcxx) 3195 .Case("libstdc++", ARCXX_libstdcxx) 3196 .Case("none", ARCXX_nolib) 3197 .Default(~0U); 3198 if (Library == ~0U) 3199 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3200 else 3201 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3202 } 3203 3204 // Always avoid lexing editor placeholders when we're just running the 3205 // preprocessor as we never want to emit the 3206 // "editor placeholder in source file" error in PP only mode. 3207 if (isStrictlyPreprocessorAction(Action)) 3208 Opts.LexEditorPlaceholders = false; 3209 } 3210 3211 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3212 ArgList &Args, 3213 frontend::ActionKind Action) { 3214 if (isStrictlyPreprocessorAction(Action)) 3215 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3216 else 3217 Opts.ShowCPP = 0; 3218 3219 Opts.ShowComments = Args.hasArg(OPT_C); 3220 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3221 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3222 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3223 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3224 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3225 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3226 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3227 } 3228 3229 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3230 DiagnosticsEngine &Diags) { 3231 Opts.CodeModel = getCodeModel(Args, Diags); 3232 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 3233 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3234 StringRef Value = A->getValue(); 3235 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3236 .Case("default", llvm::EABI::Default) 3237 .Case("4", llvm::EABI::EABI4) 3238 .Case("5", llvm::EABI::EABI5) 3239 .Case("gnu", llvm::EABI::GNU) 3240 .Default(llvm::EABI::Unknown); 3241 if (EABIVersion == llvm::EABI::Unknown) 3242 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3243 << Value; 3244 else 3245 Opts.EABIVersion = EABIVersion; 3246 } 3247 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 3248 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 3249 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3250 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 3251 Opts.Triple = Args.getLastArgValue(OPT_triple); 3252 // Use the default target triple if unspecified. 3253 if (Opts.Triple.empty()) 3254 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3255 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3256 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3257 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3258 Opts.NVPTXUseShortPointers = Args.hasFlag( 3259 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3260 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3261 llvm::VersionTuple Version; 3262 if (Version.tryParse(A->getValue())) 3263 Diags.Report(diag::err_drv_invalid_value) 3264 << A->getAsString(Args) << A->getValue(); 3265 else 3266 Opts.SDKVersion = Version; 3267 } 3268 } 3269 3270 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3271 const char *const *ArgBegin, 3272 const char *const *ArgEnd, 3273 DiagnosticsEngine &Diags) { 3274 bool Success = true; 3275 3276 // Parse the arguments. 3277 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 3278 const unsigned IncludedFlagsBitmask = options::CC1Option; 3279 unsigned MissingArgIndex, MissingArgCount; 3280 InputArgList Args = 3281 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 3282 MissingArgCount, IncludedFlagsBitmask); 3283 LangOptions &LangOpts = *Res.getLangOpts(); 3284 3285 // Check for missing argument error. 3286 if (MissingArgCount) { 3287 Diags.Report(diag::err_drv_missing_argument) 3288 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3289 Success = false; 3290 } 3291 3292 // Issue errors on unknown arguments. 3293 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3294 auto ArgString = A->getAsString(Args); 3295 std::string Nearest; 3296 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3297 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3298 else 3299 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3300 << ArgString << Nearest; 3301 Success = false; 3302 } 3303 3304 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3305 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3306 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3307 Success &= 3308 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3309 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3310 ParseCommentArgs(LangOpts.CommentOpts, Args); 3311 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3312 // FIXME: We shouldn't have to pass the DashX option around here 3313 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3314 LangOpts.IsHeaderFile); 3315 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3316 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3317 Res.getTargetOpts(), Res.getFrontendOpts()); 3318 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3319 Res.getFileSystemOpts().WorkingDir); 3320 llvm::Triple T(Res.getTargetOpts().Triple); 3321 if (DashX.getFormat() == InputKind::Precompiled || 3322 DashX.getLanguage() == InputKind::LLVM_IR) { 3323 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3324 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3325 // what the input type is. 3326 if (Args.hasArg(OPT_fobjc_arc)) 3327 LangOpts.ObjCAutoRefCount = 1; 3328 // PIClevel and PIELevel are needed during code generation and this should be 3329 // set regardless of the input type. 3330 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3331 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3332 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3333 Diags, LangOpts.Sanitize); 3334 } else { 3335 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3336 // FIXME: Should we really be calling this for an InputKind::Asm input? 3337 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3338 Res.getPreprocessorOpts(), Diags); 3339 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3340 LangOpts.ObjCExceptions = 1; 3341 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3342 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3343 // preprocessed input as we don't expect it to be used with -std=libc++ 3344 // anyway. 3345 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3346 } 3347 } 3348 3349 LangOpts.FunctionAlignment = 3350 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3351 3352 if (LangOpts.CUDA) { 3353 // During CUDA device-side compilation, the aux triple is the 3354 // triple used for host compilation. 3355 if (LangOpts.CUDAIsDevice) 3356 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3357 } 3358 3359 // Set the triple of the host for OpenMP device compile. 3360 if (LangOpts.OpenMPIsDevice) 3361 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3362 3363 // FIXME: Override value name discarding when asan or msan is used because the 3364 // backend passes depend on the name of the alloca in order to print out 3365 // names. 3366 Res.getCodeGenOpts().DiscardValueNames &= 3367 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3368 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3369 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3370 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3371 3372 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3373 Res.getFrontendOpts().ProgramAction); 3374 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3375 Res.getFrontendOpts().ProgramAction); 3376 3377 // Turn on -Wspir-compat for SPIR target. 3378 if (T.isSPIR()) 3379 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3380 3381 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3382 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3383 !Res.getLangOpts()->Sanitize.empty()) { 3384 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3385 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3386 } 3387 return Success; 3388 } 3389 3390 std::string CompilerInvocation::getModuleHash() const { 3391 // Note: For QoI reasons, the things we use as a hash here should all be 3392 // dumped via the -module-info flag. 3393 using llvm::hash_code; 3394 using llvm::hash_value; 3395 using llvm::hash_combine; 3396 3397 // Start the signature with the compiler version. 3398 // FIXME: We'd rather use something more cryptographically sound than 3399 // CityHash, but this will do for now. 3400 hash_code code = hash_value(getClangFullRepositoryVersion()); 3401 3402 // Extend the signature with the language options 3403 #define LANGOPT(Name, Bits, Default, Description) \ 3404 code = hash_combine(code, LangOpts->Name); 3405 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3406 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3407 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3408 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3409 #include "clang/Basic/LangOptions.def" 3410 3411 for (StringRef Feature : LangOpts->ModuleFeatures) 3412 code = hash_combine(code, Feature); 3413 3414 // Extend the signature with the target options. 3415 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3416 TargetOpts->ABI); 3417 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3418 code = hash_combine(code, FeatureAsWritten); 3419 3420 // Extend the signature with preprocessor options. 3421 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3422 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3423 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3424 3425 for (const auto &I : getPreprocessorOpts().Macros) { 3426 // If we're supposed to ignore this macro for the purposes of modules, 3427 // don't put it into the hash. 3428 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3429 // Check whether we're ignoring this macro. 3430 StringRef MacroDef = I.first; 3431 if (hsOpts.ModulesIgnoreMacros.count( 3432 llvm::CachedHashString(MacroDef.split('=').first))) 3433 continue; 3434 } 3435 3436 code = hash_combine(code, I.first, I.second); 3437 } 3438 3439 // Extend the signature with the sysroot and other header search options. 3440 code = hash_combine(code, hsOpts.Sysroot, 3441 hsOpts.ModuleFormat, 3442 hsOpts.UseDebugInfo, 3443 hsOpts.UseBuiltinIncludes, 3444 hsOpts.UseStandardSystemIncludes, 3445 hsOpts.UseStandardCXXIncludes, 3446 hsOpts.UseLibcxx, 3447 hsOpts.ModulesValidateDiagnosticOptions); 3448 code = hash_combine(code, hsOpts.ResourceDir); 3449 3450 // Extend the signature with the user build path. 3451 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3452 3453 // Extend the signature with the module file extensions. 3454 const FrontendOptions &frontendOpts = getFrontendOpts(); 3455 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3456 code = ext->hashExtension(code); 3457 } 3458 3459 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3460 // affects the debug info in the PCM. 3461 if (getCodeGenOpts().DebugTypeExtRefs) 3462 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3463 code = hash_combine(code, KeyValue.first, KeyValue.second); 3464 3465 // Extend the signature with the enabled sanitizers, if at least one is 3466 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3467 SanitizerSet SanHash = LangOpts->Sanitize; 3468 SanHash.clear(getPPTransparentSanitizers()); 3469 if (!SanHash.empty()) 3470 code = hash_combine(code, SanHash.Mask); 3471 3472 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3473 } 3474 3475 template<typename IntTy> 3476 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 3477 IntTy Default, 3478 DiagnosticsEngine *Diags) { 3479 IntTy Res = Default; 3480 if (Arg *A = Args.getLastArg(Id)) { 3481 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 3482 if (Diags) 3483 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 3484 << A->getValue(); 3485 } 3486 } 3487 return Res; 3488 } 3489 3490 namespace clang { 3491 3492 // Declared in clang/Frontend/Utils.h. 3493 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 3494 DiagnosticsEngine *Diags) { 3495 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 3496 } 3497 3498 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 3499 uint64_t Default, 3500 DiagnosticsEngine *Diags) { 3501 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 3502 } 3503 3504 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3505 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3506 DiagnosticsEngine &Diags) { 3507 return createVFSFromCompilerInvocation(CI, Diags, 3508 llvm::vfs::getRealFileSystem()); 3509 } 3510 3511 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3512 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3513 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3514 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3515 return BaseFS; 3516 3517 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3518 // earlier vfs files are on the bottom 3519 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3520 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3521 Result->getBufferForFile(File); 3522 if (!Buffer) { 3523 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3524 continue; 3525 } 3526 3527 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3528 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3529 /*DiagContext*/ nullptr, Result); 3530 if (!FS) { 3531 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3532 continue; 3533 } 3534 3535 Result = FS; 3536 } 3537 return Result; 3538 } 3539 3540 } // namespace clang 3541