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); 291 292 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 293 Opts.ShowCheckerOptionAlphaList = 294 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 295 Opts.ShowCheckerOptionDeveloperList = 296 Args.hasArg(OPT_analyzer_checker_option_help_developer); 297 298 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 299 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 300 Opts.ShouldEmitErrorsOnInvalidConfigValue = 301 /* negated */!llvm::StringSwitch<bool>( 302 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 303 .Case("true", true) 304 .Case("false", false) 305 .Default(false); 306 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 307 308 Opts.visualizeExplodedGraphWithGraphViz = 309 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 310 Opts.DumpExplodedGraphTo = Args.getLastArgValue(OPT_analyzer_dump_egraph); 311 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 312 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 313 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 314 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 315 Opts.AnalyzeNestedBlocks = 316 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 317 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 318 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 319 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 320 Opts.maxBlockVisitOnPath = 321 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 322 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 323 Opts.InlineMaxStackDepth = 324 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 325 Opts.InlineMaxStackDepth, Diags); 326 327 Opts.CheckersControlList.clear(); 328 for (const Arg *A : 329 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 330 A->claim(); 331 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 332 // We can have a list of comma separated checker names, e.g: 333 // '-analyzer-checker=cocoa,unix' 334 StringRef checkerList = A->getValue(); 335 SmallVector<StringRef, 4> checkers; 336 checkerList.split(checkers, ","); 337 for (auto checker : checkers) 338 Opts.CheckersControlList.emplace_back(checker, enable); 339 } 340 341 // Go through the analyzer configuration options. 342 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 343 344 // We can have a list of comma separated config names, e.g: 345 // '-analyzer-config key1=val1,key2=val2' 346 StringRef configList = A->getValue(); 347 SmallVector<StringRef, 4> configVals; 348 configList.split(configVals, ","); 349 for (const auto &configVal : configVals) { 350 StringRef key, val; 351 std::tie(key, val) = configVal.split("="); 352 if (val.empty()) { 353 Diags.Report(SourceLocation(), 354 diag::err_analyzer_config_no_value) << configVal; 355 Success = false; 356 break; 357 } 358 if (val.find('=') != StringRef::npos) { 359 Diags.Report(SourceLocation(), 360 diag::err_analyzer_config_multiple_values) 361 << configVal; 362 Success = false; 363 break; 364 } 365 366 // TODO: Check checker options too, possibly in CheckerRegistry. 367 // Leave unknown non-checker configs unclaimed. 368 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 369 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 370 Diags.Report(diag::err_analyzer_config_unknown) << key; 371 continue; 372 } 373 374 A->claim(); 375 Opts.Config[key] = val; 376 } 377 } 378 379 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 380 parseAnalyzerConfigs(Opts, &Diags); 381 else 382 parseAnalyzerConfigs(Opts, nullptr); 383 384 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 385 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 386 if (i != 0) 387 os << " "; 388 os << Args.getArgString(i); 389 } 390 os.flush(); 391 392 return Success; 393 } 394 395 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 396 StringRef OptionName, StringRef DefaultVal) { 397 return Config.insert({OptionName, DefaultVal}).first->second; 398 } 399 400 static void initOption(AnalyzerOptions::ConfigTable &Config, 401 DiagnosticsEngine *Diags, 402 StringRef &OptionField, StringRef Name, 403 StringRef DefaultVal) { 404 // String options may be known to invalid (e.g. if the expected string is a 405 // file name, but the file does not exist), those will have to be checked in 406 // parseConfigs. 407 OptionField = getStringOption(Config, Name, DefaultVal); 408 } 409 410 static void initOption(AnalyzerOptions::ConfigTable &Config, 411 DiagnosticsEngine *Diags, 412 bool &OptionField, StringRef Name, bool DefaultVal) { 413 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 414 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 415 .Case("true", true) 416 .Case("false", false) 417 .Default(None); 418 419 if (!PossiblyInvalidVal) { 420 if (Diags) 421 Diags->Report(diag::err_analyzer_config_invalid_input) 422 << Name << "a boolean"; 423 else 424 OptionField = DefaultVal; 425 } else 426 OptionField = PossiblyInvalidVal.getValue(); 427 } 428 429 static void initOption(AnalyzerOptions::ConfigTable &Config, 430 DiagnosticsEngine *Diags, 431 unsigned &OptionField, StringRef Name, 432 unsigned DefaultVal) { 433 434 OptionField = DefaultVal; 435 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 436 .getAsInteger(0, OptionField); 437 if (Diags && HasFailed) 438 Diags->Report(diag::err_analyzer_config_invalid_input) 439 << Name << "an unsigned"; 440 } 441 442 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 443 DiagnosticsEngine *Diags) { 444 // TODO: There's no need to store the entire configtable, it'd be plenty 445 // enough tostore checker options. 446 447 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 448 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 449 450 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 451 SHALLOW_VAL, DEEP_VAL) \ 452 switch (AnOpts.getUserMode()) { \ 453 case UMK_Shallow: \ 454 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 455 break; \ 456 case UMK_Deep: \ 457 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 458 break; \ 459 } \ 460 461 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 462 #undef ANALYZER_OPTION 463 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 464 465 // At this point, AnalyzerOptions is configured. Let's validate some options. 466 467 if (!Diags) 468 return; 469 470 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 471 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 472 << "a filename"; 473 474 if (!AnOpts.ModelPath.empty() && 475 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 476 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 477 << "a filename"; 478 } 479 480 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 481 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 482 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 483 return true; 484 } 485 486 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 487 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 488 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 489 } 490 491 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 492 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 493 StringRef Value = A->getValue(); 494 if (Value == "small" || Value == "kernel" || Value == "medium" || 495 Value == "large" || Value == "tiny") 496 return Value; 497 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 498 } 499 return "default"; 500 } 501 502 static llvm::Reloc::Model getRelocModel(ArgList &Args, 503 DiagnosticsEngine &Diags) { 504 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 505 StringRef Value = A->getValue(); 506 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 507 .Case("static", llvm::Reloc::Static) 508 .Case("pic", llvm::Reloc::PIC_) 509 .Case("ropi", llvm::Reloc::ROPI) 510 .Case("rwpi", llvm::Reloc::RWPI) 511 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 512 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 513 .Default(None); 514 if (RM.hasValue()) 515 return *RM; 516 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 517 } 518 return llvm::Reloc::PIC_; 519 } 520 521 /// Create a new Regex instance out of the string value in \p RpassArg. 522 /// It returns a pointer to the newly generated Regex instance. 523 static std::shared_ptr<llvm::Regex> 524 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 525 Arg *RpassArg) { 526 StringRef Val = RpassArg->getValue(); 527 std::string RegexError; 528 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 529 if (!Pattern->isValid(RegexError)) { 530 Diags.Report(diag::err_drv_optimization_remark_pattern) 531 << RegexError << RpassArg->getAsString(Args); 532 Pattern.reset(); 533 } 534 return Pattern; 535 } 536 537 static bool parseDiagnosticLevelMask(StringRef FlagName, 538 const std::vector<std::string> &Levels, 539 DiagnosticsEngine *Diags, 540 DiagnosticLevelMask &M) { 541 bool Success = true; 542 for (const auto &Level : Levels) { 543 DiagnosticLevelMask const PM = 544 llvm::StringSwitch<DiagnosticLevelMask>(Level) 545 .Case("note", DiagnosticLevelMask::Note) 546 .Case("remark", DiagnosticLevelMask::Remark) 547 .Case("warning", DiagnosticLevelMask::Warning) 548 .Case("error", DiagnosticLevelMask::Error) 549 .Default(DiagnosticLevelMask::None); 550 if (PM == DiagnosticLevelMask::None) { 551 Success = false; 552 if (Diags) 553 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 554 } 555 M = M | PM; 556 } 557 return Success; 558 } 559 560 static void parseSanitizerKinds(StringRef FlagName, 561 const std::vector<std::string> &Sanitizers, 562 DiagnosticsEngine &Diags, SanitizerSet &S) { 563 for (const auto &Sanitizer : Sanitizers) { 564 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 565 if (K == SanitizerMask()) 566 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 567 else 568 S.set(K, true); 569 } 570 } 571 572 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 573 ArgList &Args, DiagnosticsEngine &D, 574 XRayInstrSet &S) { 575 llvm::SmallVector<StringRef, 2> BundleParts; 576 llvm::SplitString(Bundle, BundleParts, ","); 577 for (const auto B : BundleParts) { 578 auto Mask = parseXRayInstrValue(B); 579 if (Mask == XRayInstrKind::None) 580 if (B != "none") 581 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 582 else 583 S.Mask = Mask; 584 else if (Mask == XRayInstrKind::All) 585 S.Mask = Mask; 586 else 587 S.set(Mask, true); 588 } 589 } 590 591 // Set the profile kind for fprofile-instrument. 592 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 593 DiagnosticsEngine &Diags) { 594 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 595 if (A == nullptr) 596 return; 597 StringRef S = A->getValue(); 598 unsigned I = llvm::StringSwitch<unsigned>(S) 599 .Case("none", CodeGenOptions::ProfileNone) 600 .Case("clang", CodeGenOptions::ProfileClangInstr) 601 .Case("llvm", CodeGenOptions::ProfileIRInstr) 602 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 603 .Default(~0U); 604 if (I == ~0U) { 605 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 606 << S; 607 return; 608 } 609 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 610 Opts.setProfileInstr(Instrumentor); 611 } 612 613 // Set the profile kind using fprofile-instrument-use-path. 614 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 615 const Twine &ProfileName) { 616 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 617 // In error, return silently and let Clang PGOUse report the error message. 618 if (auto E = ReaderOrErr.takeError()) { 619 llvm::consumeError(std::move(E)); 620 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 621 return; 622 } 623 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 624 std::move(ReaderOrErr.get()); 625 if (PGOReader->isIRLevelProfile()) { 626 if (PGOReader->hasCSIRLevelProfile()) 627 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 628 else 629 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 630 } else 631 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 632 } 633 634 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 635 DiagnosticsEngine &Diags, 636 const TargetOptions &TargetOpts, 637 const FrontendOptions &FrontendOpts) { 638 bool Success = true; 639 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 640 641 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 642 // TODO: This could be done in Driver 643 unsigned MaxOptLevel = 3; 644 if (OptimizationLevel > MaxOptLevel) { 645 // If the optimization level is not supported, fall back on the default 646 // optimization 647 Diags.Report(diag::warn_drv_optimization_value) 648 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 649 OptimizationLevel = MaxOptLevel; 650 } 651 Opts.OptimizationLevel = OptimizationLevel; 652 653 // At O0 we want to fully disable inlining outside of cases marked with 654 // 'alwaysinline' that are required for correctness. 655 Opts.setInlining((Opts.OptimizationLevel == 0) 656 ? CodeGenOptions::OnlyAlwaysInlining 657 : CodeGenOptions::NormalInlining); 658 // Explicit inlining flags can disable some or all inlining even at 659 // optimization levels above zero. 660 if (Arg *InlineArg = Args.getLastArg( 661 options::OPT_finline_functions, options::OPT_finline_hint_functions, 662 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 663 if (Opts.OptimizationLevel > 0) { 664 const Option &InlineOpt = InlineArg->getOption(); 665 if (InlineOpt.matches(options::OPT_finline_functions)) 666 Opts.setInlining(CodeGenOptions::NormalInlining); 667 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 668 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 669 else 670 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 671 } 672 } 673 674 Opts.ExperimentalNewPassManager = Args.hasFlag( 675 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 676 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 677 678 Opts.DebugPassManager = 679 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 680 /* Default */ false); 681 682 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 683 StringRef Name = A->getValue(); 684 if (Name == "Accelerate") 685 Opts.setVecLib(CodeGenOptions::Accelerate); 686 else if (Name == "MASSV") 687 Opts.setVecLib(CodeGenOptions::MASSV); 688 else if (Name == "SVML") 689 Opts.setVecLib(CodeGenOptions::SVML); 690 else if (Name == "none") 691 Opts.setVecLib(CodeGenOptions::NoLibrary); 692 else 693 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 694 } 695 696 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 697 unsigned Val = 698 llvm::StringSwitch<unsigned>(A->getValue()) 699 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 700 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 701 .Case("limited", codegenoptions::LimitedDebugInfo) 702 .Case("standalone", codegenoptions::FullDebugInfo) 703 .Default(~0U); 704 if (Val == ~0U) 705 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 706 << A->getValue(); 707 else 708 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 709 } 710 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 711 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 712 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 713 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 714 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 715 .Default(~0U); 716 if (Val == ~0U) 717 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 718 << A->getValue(); 719 else 720 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 721 } 722 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 723 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 724 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 725 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 726 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 727 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 728 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 729 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 730 Opts.SplitDwarfOutput = Args.getLastArgValue(OPT_split_dwarf_output); 731 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 732 733 if (Arg *A = 734 Args.getLastArg(OPT_enable_split_dwarf, OPT_enable_split_dwarf_EQ)) { 735 if (A->getOption().matches(options::OPT_enable_split_dwarf)) { 736 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 737 } else { 738 StringRef Name = A->getValue(); 739 if (Name == "single") 740 Opts.setSplitDwarfMode(CodeGenOptions::SingleFileFission); 741 else if (Name == "split") 742 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 743 else 744 Diags.Report(diag::err_drv_invalid_value) 745 << A->getAsString(Args) << Name; 746 } 747 } 748 749 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 750 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 751 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 752 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 753 754 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 755 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 756 757 if (const Arg *A = 758 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 759 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 760 761 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 762 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 763 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 764 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 765 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 766 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 767 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 768 OPT_fuse_register_sized_bitfield_access); 769 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 770 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 771 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 772 Args.hasArg(OPT_new_struct_path_tbaa); 773 Opts.FineGrainedBitfieldAccesses = 774 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 775 OPT_fno_fine_grained_bitfield_accesses, false); 776 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 777 Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line); 778 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 779 Opts.NoCommon = Args.hasArg(OPT_fno_common); 780 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 781 Opts.OptimizeSize = getOptimizationLevelSize(Args); 782 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 783 Args.hasArg(OPT_ffreestanding)); 784 if (Opts.SimplifyLibCalls) 785 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 786 Opts.UnrollLoops = 787 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 788 (Opts.OptimizationLevel > 1)); 789 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 790 791 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 792 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 793 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 794 Opts.DebugInfoForProfiling = Args.hasFlag( 795 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 796 Opts.DebugNameTable = static_cast<unsigned>( 797 Args.hasArg(OPT_ggnu_pubnames) 798 ? llvm::DICompileUnit::DebugNameTableKind::GNU 799 : Args.hasArg(OPT_gpubnames) 800 ? llvm::DICompileUnit::DebugNameTableKind::Default 801 : llvm::DICompileUnit::DebugNameTableKind::None); 802 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 803 804 setPGOInstrumentor(Opts, Args, Diags); 805 Opts.InstrProfileOutput = 806 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 807 Opts.ProfileInstrumentUsePath = 808 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 809 if (!Opts.ProfileInstrumentUsePath.empty()) 810 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 811 Opts.ProfileRemappingFile = 812 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ); 813 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 814 Diags.Report(diag::err_drv_argument_only_allowed_with) 815 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 816 << "-fexperimental-new-pass-manager"; 817 } 818 819 Opts.CoverageMapping = 820 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 821 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 822 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 823 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 824 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 825 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 826 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 827 Opts.RegisterGlobalDtorsWithAtExit = 828 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 829 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 830 Opts.CodeModel = TargetOpts.CodeModel; 831 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 832 Opts.DisableFPElim = 833 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 834 Opts.DisableFree = Args.hasArg(OPT_disable_free); 835 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 836 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 837 Opts.NoEscapingBlockTailCalls = 838 Args.hasArg(OPT_fno_escaping_block_tail_calls); 839 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 840 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 841 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 842 Args.hasArg(OPT_cl_fast_relaxed_math); 843 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 844 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 845 Args.hasArg(OPT_cl_finite_math_only) || 846 Args.hasArg(OPT_cl_fast_relaxed_math)); 847 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 848 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 849 Args.hasArg(OPT_cl_finite_math_only) || 850 Args.hasArg(OPT_cl_fast_relaxed_math)); 851 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 852 Args.hasArg(OPT_cl_no_signed_zeros) || 853 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 854 Args.hasArg(OPT_cl_fast_relaxed_math)); 855 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 856 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) || 857 (Args.hasArg(OPT_fcuda_is_device) && 858 Args.hasArg(OPT_fcuda_flush_denormals_to_zero)); 859 Opts.CorrectlyRoundedDivSqrt = 860 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 861 Opts.UniformWGSize = 862 Args.hasArg(OPT_cl_uniform_work_group_size); 863 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 864 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 865 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 866 Opts.StrictFloatCastOverflow = 867 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 868 869 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 870 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 871 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 872 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 873 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 874 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 875 Opts.IncrementalLinkerCompatible = 876 Args.hasArg(OPT_mincremental_linker_compatible); 877 Opts.PIECopyRelocations = 878 Args.hasArg(OPT_mpie_copy_relocations); 879 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 880 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 881 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 882 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 883 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 884 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 885 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 886 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 887 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 888 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 889 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 890 Args.hasArg(OPT_cl_fast_relaxed_math); 891 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 892 Opts.RelocationModel = getRelocModel(Args, Diags); 893 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 894 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 895 Diags.Report(diag::err_drv_invalid_value) 896 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 897 << Opts.ThreadModel; 898 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 899 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 900 901 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 902 OPT_fno_function_sections, false); 903 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 904 OPT_fno_data_sections, false); 905 Opts.StackSizeSection = 906 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 907 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 908 OPT_fno_unique_section_names, true); 909 910 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 911 912 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 913 914 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 915 916 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 917 918 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 919 Opts.PrepareForThinLTO = false; 920 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 921 StringRef S = A->getValue(); 922 if (S == "thin") 923 Opts.PrepareForThinLTO = true; 924 else if (S != "full") 925 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 926 } 927 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 928 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 929 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 930 if (IK.getLanguage() != InputKind::LLVM_IR) 931 Diags.Report(diag::err_drv_argument_only_allowed_with) 932 << A->getAsString(Args) << "-x ir"; 933 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 934 } 935 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 936 Opts.SaveTempsFilePrefix = 937 llvm::StringSwitch<std::string>(A->getValue()) 938 .Case("obj", FrontendOpts.OutputFile) 939 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 940 941 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 942 943 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 944 945 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 946 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 947 948 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 949 950 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 951 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 952 953 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 954 955 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 956 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 957 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 958 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 959 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 960 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 961 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 962 Opts.CoverageNoFunctionNamesInData = 963 Args.hasArg(OPT_coverage_no_function_names_in_data); 964 Opts.ProfileFilterFiles = 965 Args.getLastArgValue(OPT_fprofile_filter_files_EQ); 966 Opts.ProfileExcludeFiles = 967 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ); 968 Opts.CoverageExitBlockBeforeBody = 969 Args.hasArg(OPT_coverage_exit_block_before_body); 970 if (Args.hasArg(OPT_coverage_version_EQ)) { 971 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 972 if (CoverageVersion.size() != 4) { 973 Diags.Report(diag::err_drv_invalid_value) 974 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 975 << CoverageVersion; 976 } else { 977 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 978 } 979 } 980 } 981 // Handle -fembed-bitcode option. 982 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 983 StringRef Name = A->getValue(); 984 unsigned Model = llvm::StringSwitch<unsigned>(Name) 985 .Case("off", CodeGenOptions::Embed_Off) 986 .Case("all", CodeGenOptions::Embed_All) 987 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 988 .Case("marker", CodeGenOptions::Embed_Marker) 989 .Default(~0U); 990 if (Model == ~0U) { 991 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 992 Success = false; 993 } else 994 Opts.setEmbedBitcode( 995 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 996 } 997 // FIXME: For backend options that are not yet recorded as function 998 // attributes in the IR, keep track of them so we can embed them in a 999 // separate data section and use them when building the bitcode. 1000 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1001 for (const auto &A : Args) { 1002 // Do not encode output and input. 1003 if (A->getOption().getID() == options::OPT_o || 1004 A->getOption().getID() == options::OPT_INPUT || 1005 A->getOption().getID() == options::OPT_x || 1006 A->getOption().getID() == options::OPT_fembed_bitcode || 1007 (A->getOption().getGroup().isValid() && 1008 A->getOption().getGroup().getID() == options::OPT_W_Group)) 1009 continue; 1010 ArgStringList ASL; 1011 A->render(Args, ASL); 1012 for (const auto &arg : ASL) { 1013 StringRef ArgStr(arg); 1014 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1015 // using \00 to separate each commandline options. 1016 Opts.CmdArgs.push_back('\0'); 1017 } 1018 } 1019 } 1020 1021 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1022 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1023 Opts.InstrumentFunctionsAfterInlining = 1024 Args.hasArg(OPT_finstrument_functions_after_inlining); 1025 Opts.InstrumentFunctionEntryBare = 1026 Args.hasArg(OPT_finstrument_function_entry_bare); 1027 1028 Opts.XRayInstrumentFunctions = 1029 Args.hasArg(OPT_fxray_instrument); 1030 Opts.XRayAlwaysEmitCustomEvents = 1031 Args.hasArg(OPT_fxray_always_emit_customevents); 1032 Opts.XRayAlwaysEmitTypedEvents = 1033 Args.hasArg(OPT_fxray_always_emit_typedevents); 1034 Opts.XRayInstructionThreshold = 1035 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1036 1037 auto XRayInstrBundles = 1038 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1039 if (XRayInstrBundles.empty()) 1040 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1041 else 1042 for (const auto &A : XRayInstrBundles) 1043 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1044 Diags, Opts.XRayInstrumentationBundle); 1045 1046 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1047 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1048 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1049 1050 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1051 StringRef Name = A->getValue(); 1052 if (Name == "full") { 1053 Opts.CFProtectionReturn = 1; 1054 Opts.CFProtectionBranch = 1; 1055 } else if (Name == "return") 1056 Opts.CFProtectionReturn = 1; 1057 else if (Name == "branch") 1058 Opts.CFProtectionBranch = 1; 1059 else if (Name != "none") { 1060 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1061 Success = false; 1062 } 1063 } 1064 1065 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1066 OPT_compress_debug_sections_EQ)) { 1067 if (A->getOption().getID() == OPT_compress_debug_sections) { 1068 // TODO: be more clever about the compression type auto-detection 1069 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1070 } else { 1071 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1072 .Case("none", llvm::DebugCompressionType::None) 1073 .Case("zlib", llvm::DebugCompressionType::Z) 1074 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1075 .Default(llvm::DebugCompressionType::None); 1076 Opts.setCompressDebugSections(DCT); 1077 } 1078 } 1079 1080 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1081 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1082 for (auto *A : 1083 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1084 CodeGenOptions::BitcodeFileToLink F; 1085 F.Filename = A->getValue(); 1086 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1087 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1088 // When linking CUDA bitcode, propagate function attributes so that 1089 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1090 F.PropagateAttrs = true; 1091 F.Internalize = true; 1092 } 1093 Opts.LinkBitcodeFiles.push_back(F); 1094 } 1095 Opts.SanitizeCoverageType = 1096 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1097 Opts.SanitizeCoverageIndirectCalls = 1098 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1099 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1100 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1101 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1102 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1103 Opts.SanitizeCoverage8bitCounters = 1104 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1105 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1106 Opts.SanitizeCoverageTracePCGuard = 1107 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1108 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1109 Opts.SanitizeCoverageInline8bitCounters = 1110 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1111 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1112 Opts.SanitizeCoverageStackDepth = 1113 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1114 Opts.SanitizeMemoryTrackOrigins = 1115 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1116 Opts.SanitizeMemoryUseAfterDtor = 1117 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1118 OPT_fno_sanitize_memory_use_after_dtor, 1119 false); 1120 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1121 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1122 Opts.SanitizeCfiICallGeneralizePointers = 1123 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1124 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1125 if (Arg *A = Args.getLastArg( 1126 OPT_fsanitize_address_poison_custom_array_cookie, 1127 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1128 Opts.SanitizeAddressPoisonCustomArrayCookie = 1129 A->getOption().getID() == 1130 OPT_fsanitize_address_poison_custom_array_cookie; 1131 } 1132 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1133 OPT_fno_sanitize_address_use_after_scope)) { 1134 Opts.SanitizeAddressUseAfterScope = 1135 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1136 } 1137 Opts.SanitizeAddressGlobalsDeadStripping = 1138 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1139 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1140 OPT_fno_sanitize_address_use_odr_indicator)) { 1141 Opts.SanitizeAddressUseOdrIndicator = 1142 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1143 } 1144 Opts.SSPBufferSize = 1145 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1146 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1147 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1148 StringRef Val = A->getValue(); 1149 unsigned StackAlignment = Opts.StackAlignment; 1150 Val.getAsInteger(10, StackAlignment); 1151 Opts.StackAlignment = StackAlignment; 1152 } 1153 1154 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1155 StringRef Val = A->getValue(); 1156 unsigned StackProbeSize = Opts.StackProbeSize; 1157 Val.getAsInteger(0, StackProbeSize); 1158 Opts.StackProbeSize = StackProbeSize; 1159 } 1160 1161 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1162 1163 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1164 StringRef Name = A->getValue(); 1165 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1166 .Case("legacy", CodeGenOptions::Legacy) 1167 .Case("non-legacy", CodeGenOptions::NonLegacy) 1168 .Case("mixed", CodeGenOptions::Mixed) 1169 .Default(~0U); 1170 if (Method == ~0U) { 1171 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1172 Success = false; 1173 } else { 1174 Opts.setObjCDispatchMethod( 1175 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1176 } 1177 } 1178 1179 1180 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1181 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1182 1183 if (Args.getLastArg(OPT_femulated_tls) || 1184 Args.getLastArg(OPT_fno_emulated_tls)) { 1185 Opts.ExplicitEmulatedTLS = true; 1186 Opts.EmulatedTLS = 1187 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1188 } 1189 1190 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1191 StringRef Name = A->getValue(); 1192 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1193 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1194 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1195 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1196 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1197 .Default(~0U); 1198 if (Model == ~0U) { 1199 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1200 Success = false; 1201 } else { 1202 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1203 } 1204 } 1205 1206 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1207 StringRef Val = A->getValue(); 1208 if (Val == "ieee") 1209 Opts.FPDenormalMode = "ieee"; 1210 else if (Val == "preserve-sign") 1211 Opts.FPDenormalMode = "preserve-sign"; 1212 else if (Val == "positive-zero") 1213 Opts.FPDenormalMode = "positive-zero"; 1214 else 1215 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1216 } 1217 1218 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1219 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1220 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1221 } else { 1222 assert(A->getOption().matches(OPT_freg_struct_return)); 1223 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1224 } 1225 } 1226 1227 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1228 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1229 bool NeedLocTracking = false; 1230 1231 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 1232 if (!Opts.OptRecordFile.empty()) 1233 NeedLocTracking = true; 1234 1235 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1236 Opts.OptRecordPasses = A->getValue(); 1237 NeedLocTracking = true; 1238 } 1239 1240 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1241 Opts.OptRecordFormat = A->getValue(); 1242 NeedLocTracking = true; 1243 } 1244 1245 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1246 Opts.OptimizationRemarkPattern = 1247 GenerateOptimizationRemarkRegex(Diags, Args, A); 1248 NeedLocTracking = true; 1249 } 1250 1251 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1252 Opts.OptimizationRemarkMissedPattern = 1253 GenerateOptimizationRemarkRegex(Diags, Args, A); 1254 NeedLocTracking = true; 1255 } 1256 1257 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1258 Opts.OptimizationRemarkAnalysisPattern = 1259 GenerateOptimizationRemarkRegex(Diags, Args, A); 1260 NeedLocTracking = true; 1261 } 1262 1263 Opts.DiagnosticsWithHotness = 1264 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1265 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1266 bool UsingProfile = UsingSampleProfile || 1267 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1268 1269 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1270 // An IR file will contain PGO as metadata 1271 IK.getLanguage() != InputKind::LLVM_IR) 1272 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1273 << "-fdiagnostics-show-hotness"; 1274 1275 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1276 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1277 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1278 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1279 << "-fdiagnostics-hotness-threshold="; 1280 1281 // If the user requested to use a sample profile for PGO, then the 1282 // backend will need to track source location information so the profile 1283 // can be incorporated into the IR. 1284 if (UsingSampleProfile) 1285 NeedLocTracking = true; 1286 1287 // If the user requested a flag that requires source locations available in 1288 // the backend, make sure that the backend tracks source location information. 1289 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1290 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1291 1292 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1293 1294 // Parse -fsanitize-recover= arguments. 1295 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1296 parseSanitizerKinds("-fsanitize-recover=", 1297 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1298 Opts.SanitizeRecover); 1299 parseSanitizerKinds("-fsanitize-trap=", 1300 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1301 Opts.SanitizeTrap); 1302 1303 Opts.CudaGpuBinaryFileName = 1304 Args.getLastArgValue(OPT_fcuda_include_gpubinary); 1305 1306 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1307 1308 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1309 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1310 1311 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1312 1313 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1314 1315 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1316 StringRef SignScope = A->getValue(); 1317 1318 if (SignScope.equals_lower("none")) 1319 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1320 else if (SignScope.equals_lower("all")) 1321 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1322 else if (SignScope.equals_lower("non-leaf")) 1323 Opts.setSignReturnAddress( 1324 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1325 else 1326 Diags.Report(diag::err_drv_invalid_value) 1327 << A->getAsString(Args) << SignScope; 1328 1329 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1330 StringRef SignKey = A->getValue(); 1331 if (!SignScope.empty() && !SignKey.empty()) { 1332 if (SignKey.equals_lower("a_key")) 1333 Opts.setSignReturnAddressKey( 1334 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1335 else if (SignKey.equals_lower("b_key")) 1336 Opts.setSignReturnAddressKey( 1337 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1338 else 1339 Diags.Report(diag::err_drv_invalid_value) 1340 << A->getAsString(Args) << SignKey; 1341 } 1342 } 1343 } 1344 1345 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1346 1347 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1348 1349 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1350 1351 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1352 1353 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1354 1355 Opts.SymbolPartition = Args.getLastArgValue(OPT_fsymbol_partition_EQ); 1356 1357 return Success; 1358 } 1359 1360 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1361 ArgList &Args) { 1362 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1363 Opts.Targets = Args.getAllArgValues(OPT_MT); 1364 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1365 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1366 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1367 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1368 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1369 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1370 if (Args.hasArg(OPT_show_includes)) { 1371 // Writing both /showIncludes and preprocessor output to stdout 1372 // would produce interleaved output, so use stderr for /showIncludes. 1373 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1374 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1375 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1376 else 1377 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1378 } else { 1379 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1380 } 1381 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1382 Opts.ModuleDependencyOutputDir = 1383 Args.getLastArgValue(OPT_module_dependency_dir); 1384 if (Args.hasArg(OPT_MV)) 1385 Opts.OutputFormat = DependencyOutputFormat::NMake; 1386 // Add sanitizer blacklists as extra dependencies. 1387 // They won't be discovered by the regular preprocessor, so 1388 // we let make / ninja to know about this implicit dependency. 1389 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1390 // Only the -fmodule-file=<file> form. 1391 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1392 StringRef Val = A->getValue(); 1393 if (Val.find('=') == StringRef::npos) 1394 Opts.ExtraDeps.push_back(Val); 1395 } 1396 } 1397 1398 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1399 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1400 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1401 // Support both clang's -f[no-]color-diagnostics and gcc's 1402 // -f[no-]diagnostics-colors[=never|always|auto]. 1403 enum { 1404 Colors_On, 1405 Colors_Off, 1406 Colors_Auto 1407 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1408 for (auto *A : Args) { 1409 const Option &O = A->getOption(); 1410 if (O.matches(options::OPT_fcolor_diagnostics) || 1411 O.matches(options::OPT_fdiagnostics_color)) { 1412 ShowColors = Colors_On; 1413 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1414 O.matches(options::OPT_fno_diagnostics_color)) { 1415 ShowColors = Colors_Off; 1416 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1417 StringRef Value(A->getValue()); 1418 if (Value == "always") 1419 ShowColors = Colors_On; 1420 else if (Value == "never") 1421 ShowColors = Colors_Off; 1422 else if (Value == "auto") 1423 ShowColors = Colors_Auto; 1424 } 1425 } 1426 return ShowColors == Colors_On || 1427 (ShowColors == Colors_Auto && 1428 llvm::sys::Process::StandardErrHasColors()); 1429 } 1430 1431 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1432 DiagnosticsEngine *Diags) { 1433 bool Success = true; 1434 for (const auto &Prefix : VerifyPrefixes) { 1435 // Every prefix must start with a letter and contain only alphanumeric 1436 // characters, hyphens, and underscores. 1437 auto BadChar = llvm::find_if(Prefix, [](char C) { 1438 return !isAlphanumeric(C) && C != '-' && C != '_'; 1439 }); 1440 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1441 Success = false; 1442 if (Diags) { 1443 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1444 Diags->Report(diag::note_drv_verify_prefix_spelling); 1445 } 1446 } 1447 } 1448 return Success; 1449 } 1450 1451 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1452 DiagnosticsEngine *Diags, 1453 bool DefaultDiagColor, bool DefaultShowOpt) { 1454 bool Success = true; 1455 1456 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1457 if (Arg *A = 1458 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1459 Opts.DiagnosticSerializationFile = A->getValue(); 1460 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1461 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1462 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1463 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1464 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1465 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1466 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1467 OPT_fno_show_column, 1468 /*Default=*/true); 1469 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1470 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1471 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1472 Opts.ShowOptionNames = 1473 Args.hasFlag(OPT_fdiagnostics_show_option, 1474 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1475 1476 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1477 1478 // Default behavior is to not to show note include stacks. 1479 Opts.ShowNoteIncludeStack = false; 1480 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1481 OPT_fno_diagnostics_show_note_include_stack)) 1482 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1483 Opts.ShowNoteIncludeStack = true; 1484 1485 StringRef ShowOverloads = 1486 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1487 if (ShowOverloads == "best") 1488 Opts.setShowOverloads(Ovl_Best); 1489 else if (ShowOverloads == "all") 1490 Opts.setShowOverloads(Ovl_All); 1491 else { 1492 Success = false; 1493 if (Diags) 1494 Diags->Report(diag::err_drv_invalid_value) 1495 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1496 << ShowOverloads; 1497 } 1498 1499 StringRef ShowCategory = 1500 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1501 if (ShowCategory == "none") 1502 Opts.ShowCategories = 0; 1503 else if (ShowCategory == "id") 1504 Opts.ShowCategories = 1; 1505 else if (ShowCategory == "name") 1506 Opts.ShowCategories = 2; 1507 else { 1508 Success = false; 1509 if (Diags) 1510 Diags->Report(diag::err_drv_invalid_value) 1511 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1512 << ShowCategory; 1513 } 1514 1515 StringRef Format = 1516 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1517 if (Format == "clang") 1518 Opts.setFormat(DiagnosticOptions::Clang); 1519 else if (Format == "msvc") 1520 Opts.setFormat(DiagnosticOptions::MSVC); 1521 else if (Format == "msvc-fallback") { 1522 Opts.setFormat(DiagnosticOptions::MSVC); 1523 Opts.CLFallbackMode = true; 1524 } else if (Format == "vi") 1525 Opts.setFormat(DiagnosticOptions::Vi); 1526 else { 1527 Success = false; 1528 if (Diags) 1529 Diags->Report(diag::err_drv_invalid_value) 1530 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1531 << Format; 1532 } 1533 1534 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1535 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1536 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1537 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1538 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1539 if (Args.hasArg(OPT_verify)) 1540 Opts.VerifyPrefixes.push_back("expected"); 1541 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1542 // then sort it to prepare for fast lookup using std::binary_search. 1543 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1544 Opts.VerifyDiagnostics = false; 1545 Success = false; 1546 } 1547 else 1548 llvm::sort(Opts.VerifyPrefixes); 1549 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1550 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1551 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1552 Diags, DiagMask); 1553 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1554 DiagMask = DiagnosticLevelMask::All; 1555 Opts.setVerifyIgnoreUnexpected(DiagMask); 1556 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1557 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1558 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1559 Opts.MacroBacktraceLimit = 1560 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1561 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1562 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1563 Args, OPT_ftemplate_backtrace_limit, 1564 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1565 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1566 Args, OPT_fconstexpr_backtrace_limit, 1567 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1568 Opts.SpellCheckingLimit = getLastArgIntValue( 1569 Args, OPT_fspell_checking_limit, 1570 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1571 Opts.SnippetLineLimit = getLastArgIntValue( 1572 Args, OPT_fcaret_diagnostics_max_lines, 1573 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1574 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1575 DiagnosticOptions::DefaultTabStop, Diags); 1576 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1577 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1578 if (Diags) 1579 Diags->Report(diag::warn_ignoring_ftabstop_value) 1580 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1581 } 1582 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1583 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1584 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1585 1586 return Success; 1587 } 1588 1589 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1590 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1591 } 1592 1593 /// Parse the argument to the -ftest-module-file-extension 1594 /// command-line argument. 1595 /// 1596 /// \returns true on error, false on success. 1597 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1598 std::string &BlockName, 1599 unsigned &MajorVersion, 1600 unsigned &MinorVersion, 1601 bool &Hashed, 1602 std::string &UserInfo) { 1603 SmallVector<StringRef, 5> Args; 1604 Arg.split(Args, ':', 5); 1605 if (Args.size() < 5) 1606 return true; 1607 1608 BlockName = Args[0]; 1609 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1610 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1611 if (Args[3].getAsInteger(2, Hashed)) return true; 1612 if (Args.size() > 4) 1613 UserInfo = Args[4]; 1614 return false; 1615 } 1616 1617 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1618 DiagnosticsEngine &Diags, 1619 bool &IsHeaderFile) { 1620 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1621 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1622 switch (A->getOption().getID()) { 1623 default: 1624 llvm_unreachable("Invalid option in group!"); 1625 case OPT_ast_list: 1626 Opts.ProgramAction = frontend::ASTDeclList; break; 1627 case OPT_ast_dump_all_EQ: 1628 case OPT_ast_dump_EQ: { 1629 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1630 .CaseLower("default", ADOF_Default) 1631 .CaseLower("json", ADOF_JSON) 1632 .Default(std::numeric_limits<unsigned>::max()); 1633 1634 if (Val != std::numeric_limits<unsigned>::max()) 1635 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1636 else { 1637 Diags.Report(diag::err_drv_invalid_value) 1638 << A->getAsString(Args) << A->getValue(); 1639 Opts.ASTDumpFormat = ADOF_Default; 1640 } 1641 LLVM_FALLTHROUGH; 1642 } 1643 case OPT_ast_dump: 1644 case OPT_ast_dump_all: 1645 case OPT_ast_dump_lookups: 1646 Opts.ProgramAction = frontend::ASTDump; break; 1647 case OPT_ast_print: 1648 Opts.ProgramAction = frontend::ASTPrint; break; 1649 case OPT_ast_view: 1650 Opts.ProgramAction = frontend::ASTView; break; 1651 case OPT_compiler_options_dump: 1652 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1653 case OPT_dump_raw_tokens: 1654 Opts.ProgramAction = frontend::DumpRawTokens; break; 1655 case OPT_dump_tokens: 1656 Opts.ProgramAction = frontend::DumpTokens; break; 1657 case OPT_S: 1658 Opts.ProgramAction = frontend::EmitAssembly; break; 1659 case OPT_emit_llvm_bc: 1660 Opts.ProgramAction = frontend::EmitBC; break; 1661 case OPT_emit_html: 1662 Opts.ProgramAction = frontend::EmitHTML; break; 1663 case OPT_emit_llvm: 1664 Opts.ProgramAction = frontend::EmitLLVM; break; 1665 case OPT_emit_llvm_only: 1666 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1667 case OPT_emit_codegen_only: 1668 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1669 case OPT_emit_obj: 1670 Opts.ProgramAction = frontend::EmitObj; break; 1671 case OPT_fixit_EQ: 1672 Opts.FixItSuffix = A->getValue(); 1673 LLVM_FALLTHROUGH; 1674 case OPT_fixit: 1675 Opts.ProgramAction = frontend::FixIt; break; 1676 case OPT_emit_module: 1677 Opts.ProgramAction = frontend::GenerateModule; break; 1678 case OPT_emit_module_interface: 1679 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1680 case OPT_emit_header_module: 1681 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1682 case OPT_emit_pch: 1683 Opts.ProgramAction = frontend::GeneratePCH; break; 1684 case OPT_emit_iterface_stubs: { 1685 llvm::Optional<frontend::ActionKind> ProgramAction = 1686 llvm::StringSwitch<llvm::Optional<frontend::ActionKind>>( 1687 Args.hasArg(OPT_iterface_stub_version_EQ) 1688 ? Args.getLastArgValue(OPT_iterface_stub_version_EQ) 1689 : "") 1690 .Case("experimental-yaml-elf-v1", 1691 frontend::GenerateInterfaceYAMLExpV1) 1692 .Case("experimental-tapi-elf-v1", 1693 frontend::GenerateInterfaceTBEExpV1) 1694 .Default(llvm::None); 1695 if (!ProgramAction) 1696 Diags.Report(diag::err_drv_invalid_value) 1697 << "Must specify a valid interface stub format type using " 1698 << "-interface-stub-version=<experimental-tapi-elf-v1 | " 1699 "experimental-yaml-elf-v1>"; 1700 Opts.ProgramAction = *ProgramAction; 1701 break; 1702 } 1703 case OPT_init_only: 1704 Opts.ProgramAction = frontend::InitOnly; break; 1705 case OPT_fsyntax_only: 1706 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1707 case OPT_module_file_info: 1708 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1709 case OPT_verify_pch: 1710 Opts.ProgramAction = frontend::VerifyPCH; break; 1711 case OPT_print_preamble: 1712 Opts.ProgramAction = frontend::PrintPreamble; break; 1713 case OPT_E: 1714 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1715 case OPT_templight_dump: 1716 Opts.ProgramAction = frontend::TemplightDump; break; 1717 case OPT_rewrite_macros: 1718 Opts.ProgramAction = frontend::RewriteMacros; break; 1719 case OPT_rewrite_objc: 1720 Opts.ProgramAction = frontend::RewriteObjC; break; 1721 case OPT_rewrite_test: 1722 Opts.ProgramAction = frontend::RewriteTest; break; 1723 case OPT_analyze: 1724 Opts.ProgramAction = frontend::RunAnalysis; break; 1725 case OPT_migrate: 1726 Opts.ProgramAction = frontend::MigrateSource; break; 1727 case OPT_Eonly: 1728 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1729 case OPT_print_dependency_directives_minimized_source: 1730 Opts.ProgramAction = 1731 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1732 break; 1733 } 1734 } 1735 1736 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1737 Opts.Plugins.emplace_back(A->getValue(0)); 1738 Opts.ProgramAction = frontend::PluginAction; 1739 Opts.ActionName = A->getValue(); 1740 } 1741 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1742 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1743 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1744 1745 for (const std::string &Arg : 1746 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1747 std::string BlockName; 1748 unsigned MajorVersion; 1749 unsigned MinorVersion; 1750 bool Hashed; 1751 std::string UserInfo; 1752 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1753 MinorVersion, Hashed, UserInfo)) { 1754 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1755 1756 continue; 1757 } 1758 1759 // Add the testing module file extension. 1760 Opts.ModuleFileExtensions.push_back( 1761 std::make_shared<TestModuleFileExtension>( 1762 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1763 } 1764 1765 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1766 Opts.CodeCompletionAt = 1767 ParsedSourceLocation::FromString(A->getValue()); 1768 if (Opts.CodeCompletionAt.FileName.empty()) 1769 Diags.Report(diag::err_drv_invalid_value) 1770 << A->getAsString(Args) << A->getValue(); 1771 } 1772 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1773 1774 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1775 Opts.Plugins = Args.getAllArgValues(OPT_load); 1776 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1777 Opts.ShowHelp = Args.hasArg(OPT_help); 1778 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1779 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1780 Opts.PrintSupportedCPUs = Args.hasArg(OPT__print_supported_cpus); 1781 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1782 Opts.ShowVersion = Args.hasArg(OPT_version); 1783 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1784 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1785 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1786 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1787 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1788 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1789 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1790 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1791 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1792 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1793 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1794 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1795 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1796 // Only the -fmodule-file=<file> form. 1797 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1798 StringRef Val = A->getValue(); 1799 if (Val.find('=') == StringRef::npos) 1800 Opts.ModuleFiles.push_back(Val); 1801 } 1802 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1803 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1804 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1805 1806 Opts.CodeCompleteOpts.IncludeMacros 1807 = Args.hasArg(OPT_code_completion_macros); 1808 Opts.CodeCompleteOpts.IncludeCodePatterns 1809 = Args.hasArg(OPT_code_completion_patterns); 1810 Opts.CodeCompleteOpts.IncludeGlobals 1811 = !Args.hasArg(OPT_no_code_completion_globals); 1812 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1813 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1814 Opts.CodeCompleteOpts.IncludeBriefComments 1815 = Args.hasArg(OPT_code_completion_brief_comments); 1816 Opts.CodeCompleteOpts.IncludeFixIts 1817 = Args.hasArg(OPT_code_completion_with_fixits); 1818 1819 Opts.OverrideRecordLayoutsFile 1820 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1821 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple); 1822 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1823 1824 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1825 OPT_arcmt_modify, 1826 OPT_arcmt_migrate)) { 1827 switch (A->getOption().getID()) { 1828 default: 1829 llvm_unreachable("missed a case"); 1830 case OPT_arcmt_check: 1831 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1832 break; 1833 case OPT_arcmt_modify: 1834 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1835 break; 1836 case OPT_arcmt_migrate: 1837 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1838 break; 1839 } 1840 } 1841 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1842 Opts.ARCMTMigrateReportOut 1843 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1844 Opts.ARCMTMigrateEmitARCErrors 1845 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1846 1847 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1848 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1849 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1850 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1851 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1852 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1853 if (Args.hasArg(OPT_objcmt_migrate_property)) 1854 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1855 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1856 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1857 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1858 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1859 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1860 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1861 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1862 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1863 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1864 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1865 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1866 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1867 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1868 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1869 if (Args.hasArg(OPT_objcmt_atomic_property)) 1870 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1871 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1872 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1873 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1874 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1875 if (Args.hasArg(OPT_objcmt_migrate_all)) 1876 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1877 1878 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1879 1880 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1881 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1882 Diags.Report(diag::err_drv_argument_not_allowed_with) 1883 << "ARC migration" << "ObjC migration"; 1884 } 1885 1886 InputKind DashX(InputKind::Unknown); 1887 if (const Arg *A = Args.getLastArg(OPT_x)) { 1888 StringRef XValue = A->getValue(); 1889 1890 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1891 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1892 bool Preprocessed = XValue.consume_back("-cpp-output"); 1893 bool ModuleMap = XValue.consume_back("-module-map"); 1894 IsHeaderFile = 1895 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1896 1897 // Principal languages. 1898 DashX = llvm::StringSwitch<InputKind>(XValue) 1899 .Case("c", InputKind::C) 1900 .Case("cl", InputKind::OpenCL) 1901 .Case("cuda", InputKind::CUDA) 1902 .Case("hip", InputKind::HIP) 1903 .Case("c++", InputKind::CXX) 1904 .Case("objective-c", InputKind::ObjC) 1905 .Case("objective-c++", InputKind::ObjCXX) 1906 .Case("renderscript", InputKind::RenderScript) 1907 .Default(InputKind::Unknown); 1908 1909 // "objc[++]-cpp-output" is an acceptable synonym for 1910 // "objective-c[++]-cpp-output". 1911 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1912 DashX = llvm::StringSwitch<InputKind>(XValue) 1913 .Case("objc", InputKind::ObjC) 1914 .Case("objc++", InputKind::ObjCXX) 1915 .Default(InputKind::Unknown); 1916 1917 // Some special cases cannot be combined with suffixes. 1918 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1919 DashX = llvm::StringSwitch<InputKind>(XValue) 1920 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1921 .Case("assembler-with-cpp", InputKind::Asm) 1922 .Cases("ast", "pcm", 1923 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1924 .Case("ir", InputKind::LLVM_IR) 1925 .Default(InputKind::Unknown); 1926 1927 if (DashX.isUnknown()) 1928 Diags.Report(diag::err_drv_invalid_value) 1929 << A->getAsString(Args) << A->getValue(); 1930 1931 if (Preprocessed) 1932 DashX = DashX.getPreprocessed(); 1933 if (ModuleMap) 1934 DashX = DashX.withFormat(InputKind::ModuleMap); 1935 } 1936 1937 // '-' is the default input if none is given. 1938 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1939 Opts.Inputs.clear(); 1940 if (Inputs.empty()) 1941 Inputs.push_back("-"); 1942 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1943 InputKind IK = DashX; 1944 if (IK.isUnknown()) { 1945 IK = FrontendOptions::getInputKindForExtension( 1946 StringRef(Inputs[i]).rsplit('.').second); 1947 // FIXME: Warn on this? 1948 if (IK.isUnknown()) 1949 IK = InputKind::C; 1950 // FIXME: Remove this hack. 1951 if (i == 0) 1952 DashX = IK; 1953 } 1954 1955 // The -emit-module action implicitly takes a module map. 1956 if (Opts.ProgramAction == frontend::GenerateModule && 1957 IK.getFormat() == InputKind::Source) 1958 IK = IK.withFormat(InputKind::ModuleMap); 1959 1960 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1961 } 1962 1963 return DashX; 1964 } 1965 1966 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1967 void *MainAddr) { 1968 std::string ClangExecutable = 1969 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1970 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 1971 } 1972 1973 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1974 const std::string &WorkingDir) { 1975 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1976 Opts.Verbose = Args.hasArg(OPT_v); 1977 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1978 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1979 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1980 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1981 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1982 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1983 1984 // Canonicalize -fmodules-cache-path before storing it. 1985 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1986 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1987 if (WorkingDir.empty()) 1988 llvm::sys::fs::make_absolute(P); 1989 else 1990 llvm::sys::fs::make_absolute(WorkingDir, P); 1991 } 1992 llvm::sys::path::remove_dots(P); 1993 Opts.ModuleCachePath = P.str(); 1994 1995 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1996 // Only the -fmodule-file=<name>=<file> form. 1997 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1998 StringRef Val = A->getValue(); 1999 if (Val.find('=') != StringRef::npos) 2000 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 2001 } 2002 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2003 Opts.AddPrebuiltModulePath(A->getValue()); 2004 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2005 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2006 Opts.ModulesValidateDiagnosticOptions = 2007 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2008 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2009 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2010 Opts.ModuleCachePruneInterval = 2011 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2012 Opts.ModuleCachePruneAfter = 2013 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2014 Opts.ModulesValidateOncePerBuildSession = 2015 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2016 Opts.BuildSessionTimestamp = 2017 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2018 Opts.ModulesValidateSystemHeaders = 2019 Args.hasArg(OPT_fmodules_validate_system_headers); 2020 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2021 Opts.ModuleFormat = A->getValue(); 2022 2023 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2024 StringRef MacroDef = A->getValue(); 2025 Opts.ModulesIgnoreMacros.insert( 2026 llvm::CachedHashString(MacroDef.split('=').first)); 2027 } 2028 2029 // Add -I..., -F..., and -index-header-map options in order. 2030 bool IsIndexHeaderMap = false; 2031 bool IsSysrootSpecified = 2032 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2033 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2034 if (A->getOption().matches(OPT_index_header_map)) { 2035 // -index-header-map applies to the next -I or -F. 2036 IsIndexHeaderMap = true; 2037 continue; 2038 } 2039 2040 frontend::IncludeDirGroup Group = 2041 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2042 2043 bool IsFramework = A->getOption().matches(OPT_F); 2044 std::string Path = A->getValue(); 2045 2046 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2047 SmallString<32> Buffer; 2048 llvm::sys::path::append(Buffer, Opts.Sysroot, 2049 llvm::StringRef(A->getValue()).substr(1)); 2050 Path = Buffer.str(); 2051 } 2052 2053 Opts.AddPath(Path, Group, IsFramework, 2054 /*IgnoreSysroot*/ true); 2055 IsIndexHeaderMap = false; 2056 } 2057 2058 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2059 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2060 for (const auto *A : 2061 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2062 if (A->getOption().matches(OPT_iprefix)) 2063 Prefix = A->getValue(); 2064 else if (A->getOption().matches(OPT_iwithprefix)) 2065 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2066 else 2067 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2068 } 2069 2070 for (const auto *A : Args.filtered(OPT_idirafter)) 2071 Opts.AddPath(A->getValue(), frontend::After, false, true); 2072 for (const auto *A : Args.filtered(OPT_iquote)) 2073 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2074 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2075 Opts.AddPath(A->getValue(), frontend::System, false, 2076 !A->getOption().matches(OPT_iwithsysroot)); 2077 for (const auto *A : Args.filtered(OPT_iframework)) 2078 Opts.AddPath(A->getValue(), frontend::System, true, true); 2079 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2080 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2081 /*IgnoreSysRoot=*/false); 2082 2083 // Add the paths for the various language specific isystem flags. 2084 for (const auto *A : Args.filtered(OPT_c_isystem)) 2085 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2086 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2087 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2088 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2089 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2090 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2091 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2092 2093 // Add the internal paths from a driver that detects standard include paths. 2094 for (const auto *A : 2095 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2096 frontend::IncludeDirGroup Group = frontend::System; 2097 if (A->getOption().matches(OPT_internal_externc_isystem)) 2098 Group = frontend::ExternCSystem; 2099 Opts.AddPath(A->getValue(), Group, false, true); 2100 } 2101 2102 // Add the path prefixes which are implicitly treated as being system headers. 2103 for (const auto *A : 2104 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2105 Opts.AddSystemHeaderPrefix( 2106 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2107 2108 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2109 Opts.AddVFSOverlayFile(A->getValue()); 2110 } 2111 2112 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2113 const llvm::Triple &T, 2114 PreprocessorOptions &PPOpts, 2115 LangStandard::Kind LangStd) { 2116 // Set some properties which depend solely on the input kind; it would be nice 2117 // to move these to the language standard, and have the driver resolve the 2118 // input kind + language standard. 2119 // 2120 // FIXME: Perhaps a better model would be for a single source file to have 2121 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2122 // simultaneously active? 2123 if (IK.getLanguage() == InputKind::Asm) { 2124 Opts.AsmPreprocessor = 1; 2125 } else if (IK.isObjectiveC()) { 2126 Opts.ObjC = 1; 2127 } 2128 2129 if (LangStd == LangStandard::lang_unspecified) { 2130 // Based on the base language, pick one. 2131 switch (IK.getLanguage()) { 2132 case InputKind::Unknown: 2133 case InputKind::LLVM_IR: 2134 llvm_unreachable("Invalid input kind!"); 2135 case InputKind::OpenCL: 2136 LangStd = LangStandard::lang_opencl10; 2137 break; 2138 case InputKind::CUDA: 2139 LangStd = LangStandard::lang_cuda; 2140 break; 2141 case InputKind::Asm: 2142 case InputKind::C: 2143 #if defined(CLANG_DEFAULT_STD_C) 2144 LangStd = CLANG_DEFAULT_STD_C; 2145 #else 2146 // The PS4 uses C99 as the default C standard. 2147 if (T.isPS4()) 2148 LangStd = LangStandard::lang_gnu99; 2149 else 2150 LangStd = LangStandard::lang_gnu11; 2151 #endif 2152 break; 2153 case InputKind::ObjC: 2154 #if defined(CLANG_DEFAULT_STD_C) 2155 LangStd = CLANG_DEFAULT_STD_C; 2156 #else 2157 LangStd = LangStandard::lang_gnu11; 2158 #endif 2159 break; 2160 case InputKind::CXX: 2161 case InputKind::ObjCXX: 2162 #if defined(CLANG_DEFAULT_STD_CXX) 2163 LangStd = CLANG_DEFAULT_STD_CXX; 2164 #else 2165 LangStd = LangStandard::lang_gnucxx14; 2166 #endif 2167 break; 2168 case InputKind::RenderScript: 2169 LangStd = LangStandard::lang_c99; 2170 break; 2171 case InputKind::HIP: 2172 LangStd = LangStandard::lang_hip; 2173 break; 2174 } 2175 } 2176 2177 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2178 Opts.LineComment = Std.hasLineComments(); 2179 Opts.C99 = Std.isC99(); 2180 Opts.C11 = Std.isC11(); 2181 Opts.C17 = Std.isC17(); 2182 Opts.C2x = Std.isC2x(); 2183 Opts.CPlusPlus = Std.isCPlusPlus(); 2184 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2185 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2186 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2187 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2188 Opts.Digraphs = Std.hasDigraphs(); 2189 Opts.GNUMode = Std.isGNUMode(); 2190 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2191 Opts.HexFloats = Std.hasHexFloats(); 2192 Opts.ImplicitInt = Std.hasImplicitInt(); 2193 2194 // Set OpenCL Version. 2195 Opts.OpenCL = Std.isOpenCL(); 2196 if (LangStd == LangStandard::lang_opencl10) 2197 Opts.OpenCLVersion = 100; 2198 else if (LangStd == LangStandard::lang_opencl11) 2199 Opts.OpenCLVersion = 110; 2200 else if (LangStd == LangStandard::lang_opencl12) 2201 Opts.OpenCLVersion = 120; 2202 else if (LangStd == LangStandard::lang_opencl20) 2203 Opts.OpenCLVersion = 200; 2204 else if (LangStd == LangStandard::lang_openclcpp) 2205 Opts.OpenCLCPlusPlusVersion = 100; 2206 2207 // OpenCL has some additional defaults. 2208 if (Opts.OpenCL) { 2209 Opts.AltiVec = 0; 2210 Opts.ZVector = 0; 2211 Opts.LaxVectorConversions = 0; 2212 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2213 Opts.NativeHalfType = 1; 2214 Opts.NativeHalfArgsAndReturns = 1; 2215 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2216 // Include default header file for OpenCL. 2217 if (Opts.IncludeDefaultHeader && !Opts.DeclareOpenCLBuiltins) { 2218 PPOpts.Includes.push_back("opencl-c.h"); 2219 } 2220 } 2221 2222 Opts.HIP = IK.getLanguage() == InputKind::HIP; 2223 Opts.CUDA = IK.getLanguage() == InputKind::CUDA || Opts.HIP; 2224 if (Opts.CUDA) 2225 // Set default FP_CONTRACT to FAST. 2226 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2227 2228 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 2229 if (Opts.RenderScript) { 2230 Opts.NativeHalfType = 1; 2231 Opts.NativeHalfArgsAndReturns = 1; 2232 } 2233 2234 // OpenCL and C++ both have bool, true, false keywords. 2235 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2236 2237 // OpenCL has half keyword 2238 Opts.Half = Opts.OpenCL; 2239 2240 // C++ has wchar_t keyword. 2241 Opts.WChar = Opts.CPlusPlus; 2242 2243 Opts.GNUKeywords = Opts.GNUMode; 2244 Opts.CXXOperatorNames = Opts.CPlusPlus; 2245 2246 Opts.AlignedAllocation = Opts.CPlusPlus17; 2247 2248 Opts.DollarIdents = !Opts.AsmPreprocessor; 2249 2250 // Enable [[]] attributes in C++11 and C2x by default. 2251 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2252 } 2253 2254 /// Attempt to parse a visibility value out of the given argument. 2255 static Visibility parseVisibility(Arg *arg, ArgList &args, 2256 DiagnosticsEngine &diags) { 2257 StringRef value = arg->getValue(); 2258 if (value == "default") { 2259 return DefaultVisibility; 2260 } else if (value == "hidden" || value == "internal") { 2261 return HiddenVisibility; 2262 } else if (value == "protected") { 2263 // FIXME: diagnose if target does not support protected visibility 2264 return ProtectedVisibility; 2265 } 2266 2267 diags.Report(diag::err_drv_invalid_value) 2268 << arg->getAsString(args) << value; 2269 return DefaultVisibility; 2270 } 2271 2272 /// Check if input file kind and language standard are compatible. 2273 static bool IsInputCompatibleWithStandard(InputKind IK, 2274 const LangStandard &S) { 2275 switch (IK.getLanguage()) { 2276 case InputKind::Unknown: 2277 case InputKind::LLVM_IR: 2278 llvm_unreachable("should not parse language flags for this input"); 2279 2280 case InputKind::C: 2281 case InputKind::ObjC: 2282 case InputKind::RenderScript: 2283 return S.getLanguage() == InputKind::C; 2284 2285 case InputKind::OpenCL: 2286 return S.getLanguage() == InputKind::OpenCL; 2287 2288 case InputKind::CXX: 2289 case InputKind::ObjCXX: 2290 return S.getLanguage() == InputKind::CXX; 2291 2292 case InputKind::CUDA: 2293 // FIXME: What -std= values should be permitted for CUDA compilations? 2294 return S.getLanguage() == InputKind::CUDA || 2295 S.getLanguage() == InputKind::CXX; 2296 2297 case InputKind::HIP: 2298 return S.getLanguage() == InputKind::CXX || 2299 S.getLanguage() == InputKind::HIP; 2300 2301 case InputKind::Asm: 2302 // Accept (and ignore) all -std= values. 2303 // FIXME: The -std= value is not ignored; it affects the tokenization 2304 // and preprocessing rules if we're preprocessing this asm input. 2305 return true; 2306 } 2307 2308 llvm_unreachable("unexpected input language"); 2309 } 2310 2311 /// Get language name for given input kind. 2312 static const StringRef GetInputKindName(InputKind IK) { 2313 switch (IK.getLanguage()) { 2314 case InputKind::C: 2315 return "C"; 2316 case InputKind::ObjC: 2317 return "Objective-C"; 2318 case InputKind::CXX: 2319 return "C++"; 2320 case InputKind::ObjCXX: 2321 return "Objective-C++"; 2322 case InputKind::OpenCL: 2323 return "OpenCL"; 2324 case InputKind::CUDA: 2325 return "CUDA"; 2326 case InputKind::RenderScript: 2327 return "RenderScript"; 2328 case InputKind::HIP: 2329 return "HIP"; 2330 2331 case InputKind::Asm: 2332 return "Asm"; 2333 case InputKind::LLVM_IR: 2334 return "LLVM IR"; 2335 2336 case InputKind::Unknown: 2337 break; 2338 } 2339 llvm_unreachable("unknown input language"); 2340 } 2341 2342 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2343 const TargetOptions &TargetOpts, 2344 PreprocessorOptions &PPOpts, 2345 DiagnosticsEngine &Diags) { 2346 // FIXME: Cleanup per-file based stuff. 2347 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2348 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2349 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2350 #define LANGSTANDARD(id, name, lang, desc, features) \ 2351 .Case(name, LangStandard::lang_##id) 2352 #define LANGSTANDARD_ALIAS(id, alias) \ 2353 .Case(alias, LangStandard::lang_##id) 2354 #include "clang/Frontend/LangStandards.def" 2355 .Default(LangStandard::lang_unspecified); 2356 if (LangStd == LangStandard::lang_unspecified) { 2357 Diags.Report(diag::err_drv_invalid_value) 2358 << A->getAsString(Args) << A->getValue(); 2359 // Report supported standards with short description. 2360 for (unsigned KindValue = 0; 2361 KindValue != LangStandard::lang_unspecified; 2362 ++KindValue) { 2363 const LangStandard &Std = LangStandard::getLangStandardForKind( 2364 static_cast<LangStandard::Kind>(KindValue)); 2365 if (IsInputCompatibleWithStandard(IK, Std)) { 2366 auto Diag = Diags.Report(diag::note_drv_use_standard); 2367 Diag << Std.getName() << Std.getDescription(); 2368 unsigned NumAliases = 0; 2369 #define LANGSTANDARD(id, name, lang, desc, features) 2370 #define LANGSTANDARD_ALIAS(id, alias) \ 2371 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2372 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2373 #include "clang/Frontend/LangStandards.def" 2374 Diag << NumAliases; 2375 #define LANGSTANDARD(id, name, lang, desc, features) 2376 #define LANGSTANDARD_ALIAS(id, alias) \ 2377 if (KindValue == LangStandard::lang_##id) Diag << alias; 2378 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2379 #include "clang/Frontend/LangStandards.def" 2380 } 2381 } 2382 } else { 2383 // Valid standard, check to make sure language and standard are 2384 // compatible. 2385 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2386 if (!IsInputCompatibleWithStandard(IK, Std)) { 2387 Diags.Report(diag::err_drv_argument_not_allowed_with) 2388 << A->getAsString(Args) << GetInputKindName(IK); 2389 } 2390 } 2391 } 2392 2393 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2394 Opts.DllExportInlines = false; 2395 2396 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2397 StringRef Name = A->getValue(); 2398 if (Name == "full" || Name == "branch") { 2399 Opts.CFProtectionBranch = 1; 2400 } 2401 } 2402 // -cl-std only applies for OpenCL language standards. 2403 // Override the -std option in this case. 2404 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2405 LangStandard::Kind OpenCLLangStd 2406 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2407 .Cases("cl", "CL", LangStandard::lang_opencl10) 2408 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2409 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2410 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2411 .Case("c++", LangStandard::lang_openclcpp) 2412 .Default(LangStandard::lang_unspecified); 2413 2414 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2415 Diags.Report(diag::err_drv_invalid_value) 2416 << A->getAsString(Args) << A->getValue(); 2417 } 2418 else 2419 LangStd = OpenCLLangStd; 2420 } 2421 2422 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2423 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2424 2425 llvm::Triple T(TargetOpts.Triple); 2426 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2427 2428 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2429 // This option should be deprecated for CL > 1.0 because 2430 // this option was added for compatibility with OpenCL 1.0. 2431 if (Args.getLastArg(OPT_cl_strict_aliasing) 2432 && Opts.OpenCLVersion > 100) { 2433 Diags.Report(diag::warn_option_invalid_ocl_version) 2434 << Opts.getOpenCLVersionTuple().getAsString() 2435 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2436 } 2437 2438 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2439 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2440 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2441 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2442 // name, as it doesn't seem a useful distinction. 2443 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2444 Opts.GNUKeywords); 2445 2446 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2447 2448 if (Args.hasArg(OPT_fno_operator_names)) 2449 Opts.CXXOperatorNames = 0; 2450 2451 if (Args.hasArg(OPT_fcuda_is_device)) 2452 Opts.CUDAIsDevice = 1; 2453 2454 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2455 Opts.CUDAAllowVariadicFunctions = 1; 2456 2457 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2458 Opts.CUDAHostDeviceConstexpr = 0; 2459 2460 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2461 Opts.CUDADeviceApproxTranscendentals = 1; 2462 2463 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2464 2465 if (Opts.ObjC) { 2466 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2467 StringRef value = arg->getValue(); 2468 if (Opts.ObjCRuntime.tryParse(value)) 2469 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2470 } 2471 2472 if (Args.hasArg(OPT_fobjc_gc_only)) 2473 Opts.setGC(LangOptions::GCOnly); 2474 else if (Args.hasArg(OPT_fobjc_gc)) 2475 Opts.setGC(LangOptions::HybridGC); 2476 else if (Args.hasArg(OPT_fobjc_arc)) { 2477 Opts.ObjCAutoRefCount = 1; 2478 if (!Opts.ObjCRuntime.allowsARC()) 2479 Diags.Report(diag::err_arc_unsupported_on_runtime); 2480 } 2481 2482 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2483 // whether the feature is actually enabled. This is predominantly 2484 // determined by -fobjc-runtime, but we allow it to be overridden 2485 // from the command line for testing purposes. 2486 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2487 Opts.ObjCWeakRuntime = 1; 2488 else 2489 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2490 2491 // ObjCWeak determines whether __weak is actually enabled. 2492 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2493 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2494 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2495 assert(!Opts.ObjCWeak); 2496 } else if (Opts.getGC() != LangOptions::NonGC) { 2497 Diags.Report(diag::err_objc_weak_with_gc); 2498 } else if (!Opts.ObjCWeakRuntime) { 2499 Diags.Report(diag::err_objc_weak_unsupported); 2500 } else { 2501 Opts.ObjCWeak = 1; 2502 } 2503 } else if (Opts.ObjCAutoRefCount) { 2504 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2505 } 2506 2507 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2508 Opts.ObjCInferRelatedResultType = 0; 2509 2510 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2511 Opts.ObjCSubscriptingLegacyRuntime = 2512 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2513 } 2514 2515 if (Args.hasArg(OPT_fgnu89_inline)) { 2516 if (Opts.CPlusPlus) 2517 Diags.Report(diag::err_drv_argument_not_allowed_with) 2518 << "-fgnu89-inline" << GetInputKindName(IK); 2519 else 2520 Opts.GNUInline = 1; 2521 } 2522 2523 if (Args.hasArg(OPT_fapple_kext)) { 2524 if (!Opts.CPlusPlus) 2525 Diags.Report(diag::warn_c_kext); 2526 else 2527 Opts.AppleKext = 1; 2528 } 2529 2530 if (Args.hasArg(OPT_print_ivar_layout)) 2531 Opts.ObjCGCBitmapPrint = 1; 2532 2533 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2534 Opts.NoConstantCFStrings = 1; 2535 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2536 Opts.CFRuntime = 2537 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2538 .Cases("unspecified", "standalone", "objc", 2539 LangOptions::CoreFoundationABI::ObjectiveC) 2540 .Cases("swift", "swift-5.0", 2541 LangOptions::CoreFoundationABI::Swift5_0) 2542 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2543 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2544 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2545 2546 if (Args.hasArg(OPT_fzvector)) 2547 Opts.ZVector = 1; 2548 2549 if (Args.hasArg(OPT_pthread)) 2550 Opts.POSIXThreads = 1; 2551 2552 // The value-visibility mode defaults to "default". 2553 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2554 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2555 } else { 2556 Opts.setValueVisibilityMode(DefaultVisibility); 2557 } 2558 2559 // The type-visibility mode defaults to the value-visibility mode. 2560 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2561 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2562 } else { 2563 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2564 } 2565 2566 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2567 Opts.InlineVisibilityHidden = 1; 2568 2569 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2570 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2571 2572 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2573 Opts.SetVisibilityForExternDecls = 1; 2574 2575 if (Args.hasArg(OPT_ftrapv)) { 2576 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2577 // Set the handler, if one is specified. 2578 Opts.OverflowHandler = 2579 Args.getLastArgValue(OPT_ftrapv_handler); 2580 } 2581 else if (Args.hasArg(OPT_fwrapv)) 2582 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2583 2584 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2585 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2586 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2587 Opts.MSCompatibilityVersion = 0; 2588 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2589 VersionTuple VT; 2590 if (VT.tryParse(A->getValue())) 2591 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2592 << A->getValue(); 2593 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2594 VT.getMinor().getValueOr(0) * 100000 + 2595 VT.getSubminor().getValueOr(0); 2596 } 2597 2598 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2599 // is specified, or -std is set to a conforming mode. 2600 // Trigraphs are disabled by default in c++1z onwards. 2601 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2602 Opts.Trigraphs = 2603 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2604 2605 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2606 OPT_fno_dollars_in_identifiers, 2607 Opts.DollarIdents); 2608 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2609 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2610 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2611 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2612 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2613 Opts.ConstStrings); 2614 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2615 Opts.LaxVectorConversions = 0; 2616 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2617 Opts.ThreadsafeStatics = 0; 2618 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2619 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2620 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2621 2622 // -ffixed-point 2623 Opts.FixedPoint = 2624 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2625 !Opts.CPlusPlus; 2626 Opts.PaddingOnUnsignedFixedPoint = 2627 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2628 OPT_fno_padding_on_unsigned_fixed_point, 2629 /*Default=*/false) && 2630 Opts.FixedPoint; 2631 2632 // Handle exception personalities 2633 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2634 options::OPT_fseh_exceptions, 2635 options::OPT_fdwarf_exceptions); 2636 if (A) { 2637 const Option &Opt = A->getOption(); 2638 llvm::Triple T(TargetOpts.Triple); 2639 if (T.isWindowsMSVCEnvironment()) 2640 Diags.Report(diag::err_fe_invalid_exception_model) 2641 << Opt.getName() << T.str(); 2642 2643 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2644 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2645 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2646 } 2647 2648 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2649 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2650 2651 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2652 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2653 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2654 && Opts.OpenCLVersion == 200); 2655 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2656 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2657 2658 Opts.DoubleSquareBracketAttributes = 2659 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2660 OPT_fno_double_square_bracket_attributes, 2661 Opts.DoubleSquareBracketAttributes); 2662 2663 Opts.CPlusPlusModules = Opts.CPlusPlus2a; 2664 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2665 Opts.Modules = 2666 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2667 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2668 Opts.ModulesDeclUse = 2669 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2670 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2671 // enter a different module (eg, when building a header unit). 2672 Opts.ModulesLocalVisibility = 2673 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2674 Opts.CPlusPlusModules; 2675 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2676 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2677 Opts.ModulesSearchAll = Opts.Modules && 2678 !Args.hasArg(OPT_fno_modules_search_all) && 2679 Args.hasArg(OPT_fmodules_search_all); 2680 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2681 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2682 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2683 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2684 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2685 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2686 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2687 .Case("char", 1) 2688 .Case("short", 2) 2689 .Case("int", 4) 2690 .Default(0); 2691 if (Opts.WCharSize == 0) 2692 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2693 } 2694 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2695 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2696 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2697 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2698 if (!Opts.NoBuiltin) 2699 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2700 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2701 Opts.RelaxedTemplateTemplateArgs = 2702 Args.hasArg(OPT_frelaxed_template_template_args); 2703 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2704 Opts.AlignedAllocation = 2705 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2706 Opts.AlignedAllocation); 2707 Opts.AlignedAllocationUnavailable = 2708 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2709 Opts.NewAlignOverride = 2710 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2711 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2712 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2713 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2714 << A->getValue(); 2715 Opts.NewAlignOverride = 0; 2716 } 2717 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2718 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2719 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2720 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2721 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2722 Opts.InstantiationDepth = 2723 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2724 Opts.ArrowDepth = 2725 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2726 Opts.ConstexprCallDepth = 2727 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2728 Opts.ConstexprStepLimit = 2729 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2730 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2731 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2732 Opts.NumLargeByValueCopy = 2733 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2734 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2735 Opts.ObjCConstantStringClass = 2736 Args.getLastArgValue(OPT_fconstant_string_class); 2737 Opts.ObjCDefaultSynthProperties = 2738 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2739 Opts.EncodeExtendedBlockSig = 2740 Args.hasArg(OPT_fencode_extended_block_signature); 2741 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2742 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2743 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2744 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2745 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2746 Opts.ROPI = Args.hasArg(OPT_fropi); 2747 Opts.RWPI = Args.hasArg(OPT_frwpi); 2748 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2749 Opts.Static = Args.hasArg(OPT_static_define); 2750 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2751 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2752 || Args.hasArg(OPT_fdump_record_layouts); 2753 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2754 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2755 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2756 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2757 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2758 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2759 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2760 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2761 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2762 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2763 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2764 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2765 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ); 2766 Opts.CurrentModule = Opts.ModuleName; 2767 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2768 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2769 llvm::sort(Opts.ModuleFeatures); 2770 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2771 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2772 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2773 // is enabled. 2774 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2775 | Opts.NativeHalfArgsAndReturns; 2776 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2777 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2778 2779 // __declspec is enabled by default for the PS4 by the driver, and also 2780 // enabled for Microsoft Extensions or Borland Extensions, here. 2781 // 2782 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2783 // CUDA extension. However, it is required for supporting 2784 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2785 // been rewritten in terms of something more generic, remove the Opts.CUDA 2786 // term here. 2787 Opts.DeclSpecKeyword = 2788 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2789 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2790 2791 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2792 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2793 .Case("target", LangOptions::ASMM_Target) 2794 .Case("no", LangOptions::ASMM_Off) 2795 .Case("yes", LangOptions::ASMM_On) 2796 .Default(255)) { 2797 default: 2798 Diags.Report(diag::err_drv_invalid_value) 2799 << "-faddress-space-map-mangling=" << A->getValue(); 2800 break; 2801 case LangOptions::ASMM_Target: 2802 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2803 break; 2804 case LangOptions::ASMM_On: 2805 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2806 break; 2807 case LangOptions::ASMM_Off: 2808 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2809 break; 2810 } 2811 } 2812 2813 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2814 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2815 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2816 A->getValue()) 2817 .Case("single", 2818 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2819 .Case("multiple", 2820 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2821 .Case("virtual", 2822 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2823 .Default(LangOptions::PPTMK_BestCase); 2824 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2825 Diags.Report(diag::err_drv_invalid_value) 2826 << "-fms-memptr-rep=" << A->getValue(); 2827 2828 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2829 } 2830 2831 // Check for MS default calling conventions being specified. 2832 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2833 LangOptions::DefaultCallingConvention DefaultCC = 2834 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2835 .Case("cdecl", LangOptions::DCC_CDecl) 2836 .Case("fastcall", LangOptions::DCC_FastCall) 2837 .Case("stdcall", LangOptions::DCC_StdCall) 2838 .Case("vectorcall", LangOptions::DCC_VectorCall) 2839 .Case("regcall", LangOptions::DCC_RegCall) 2840 .Default(LangOptions::DCC_None); 2841 if (DefaultCC == LangOptions::DCC_None) 2842 Diags.Report(diag::err_drv_invalid_value) 2843 << "-fdefault-calling-conv=" << A->getValue(); 2844 2845 llvm::Triple T(TargetOpts.Triple); 2846 llvm::Triple::ArchType Arch = T.getArch(); 2847 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2848 DefaultCC == LangOptions::DCC_StdCall) && 2849 Arch != llvm::Triple::x86; 2850 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2851 DefaultCC == LangOptions::DCC_RegCall) && 2852 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2853 if (emitError) 2854 Diags.Report(diag::err_drv_argument_not_allowed_with) 2855 << A->getSpelling() << T.getTriple(); 2856 else 2857 Opts.setDefaultCallingConv(DefaultCC); 2858 } 2859 2860 // -mrtd option 2861 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2862 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2863 Diags.Report(diag::err_drv_argument_not_allowed_with) 2864 << A->getSpelling() << "-fdefault-calling-conv"; 2865 else { 2866 llvm::Triple T(TargetOpts.Triple); 2867 if (T.getArch() != llvm::Triple::x86) 2868 Diags.Report(diag::err_drv_argument_not_allowed_with) 2869 << A->getSpelling() << T.getTriple(); 2870 else 2871 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2872 } 2873 } 2874 2875 // Check if -fopenmp is specified. 2876 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2877 // Check if -fopenmp-simd is specified. 2878 bool IsSimdSpecified = 2879 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2880 /*Default=*/false); 2881 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2882 Opts.OpenMPUseTLS = 2883 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2884 Opts.OpenMPIsDevice = 2885 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2886 bool IsTargetSpecified = 2887 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2888 2889 if (Opts.OpenMP || Opts.OpenMPSimd) { 2890 if (int Version = getLastArgIntValue( 2891 Args, OPT_fopenmp_version_EQ, 2892 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 2893 Opts.OpenMP = Version; 2894 else if (IsSimdSpecified || IsTargetSpecified) 2895 Opts.OpenMP = 45; 2896 // Provide diagnostic when a given target is not expected to be an OpenMP 2897 // device or host. 2898 if (!Opts.OpenMPIsDevice) { 2899 switch (T.getArch()) { 2900 default: 2901 break; 2902 // Add unsupported host targets here: 2903 case llvm::Triple::nvptx: 2904 case llvm::Triple::nvptx64: 2905 Diags.Report(diag::err_drv_omp_host_target_not_supported) 2906 << TargetOpts.Triple; 2907 break; 2908 } 2909 } 2910 } 2911 2912 // Set the flag to prevent the implementation from emitting device exception 2913 // handling code for those requiring so. 2914 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 2915 Opts.Exceptions = 0; 2916 Opts.CXXExceptions = 0; 2917 } 2918 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2919 Opts.OpenMPCUDANumSMs = 2920 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 2921 Opts.OpenMPCUDANumSMs, Diags); 2922 Opts.OpenMPCUDABlocksPerSM = 2923 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 2924 Opts.OpenMPCUDABlocksPerSM, Diags); 2925 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 2926 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 2927 Opts.OpenMPCUDAReductionBufNum, Diags); 2928 } 2929 2930 // Prevent auto-widening the representation of loop counters during an 2931 // OpenMP collapse clause. 2932 Opts.OpenMPOptimisticCollapse = 2933 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 2934 2935 // Get the OpenMP target triples if any. 2936 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2937 2938 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2939 llvm::Triple TT(A->getValue(i)); 2940 2941 if (TT.getArch() == llvm::Triple::UnknownArch || 2942 !(TT.getArch() == llvm::Triple::ppc || 2943 TT.getArch() == llvm::Triple::ppc64 || 2944 TT.getArch() == llvm::Triple::ppc64le || 2945 TT.getArch() == llvm::Triple::nvptx || 2946 TT.getArch() == llvm::Triple::nvptx64 || 2947 TT.getArch() == llvm::Triple::x86 || 2948 TT.getArch() == llvm::Triple::x86_64)) 2949 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 2950 else 2951 Opts.OMPTargetTriples.push_back(TT); 2952 } 2953 } 2954 2955 // Get OpenMP host file path if any and report if a non existent file is 2956 // found 2957 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2958 Opts.OMPHostIRFile = A->getValue(); 2959 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2960 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 2961 << Opts.OMPHostIRFile; 2962 } 2963 2964 Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device); 2965 2966 // Set CUDA mode for OpenMP target NVPTX if specified in options 2967 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 2968 Args.hasArg(options::OPT_fopenmp_cuda_mode); 2969 2970 // Set CUDA mode for OpenMP target NVPTX if specified in options 2971 Opts.OpenMPCUDAForceFullRuntime = 2972 Opts.OpenMPIsDevice && T.isNVPTX() && 2973 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 2974 2975 // Record whether the __DEPRECATED define was requested. 2976 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2977 OPT_fno_deprecated_macro, 2978 Opts.Deprecated); 2979 2980 // FIXME: Eliminate this dependency. 2981 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2982 OptSize = getOptimizationLevelSize(Args); 2983 Opts.Optimize = Opt != 0; 2984 Opts.OptimizeSize = OptSize != 0; 2985 2986 // This is the __NO_INLINE__ define, which just depends on things like the 2987 // optimization level and -fno-inline, not actually whether the backend has 2988 // inlining enabled. 2989 Opts.NoInlineDefine = !Opts.Optimize; 2990 if (Arg *InlineArg = Args.getLastArg( 2991 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2992 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2993 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2994 Opts.NoInlineDefine = true; 2995 2996 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2997 Args.hasArg(OPT_cl_fast_relaxed_math); 2998 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2999 Args.hasArg(OPT_cl_finite_math_only) || 3000 Args.hasArg(OPT_cl_fast_relaxed_math); 3001 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3002 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3003 Args.hasArg(OPT_cl_fast_relaxed_math); 3004 3005 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3006 StringRef Val = A->getValue(); 3007 if (Val == "fast") 3008 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 3009 else if (Val == "on") 3010 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 3011 else if (Val == "off") 3012 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 3013 else 3014 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3015 } 3016 3017 Opts.RetainCommentsFromSystemHeaders = 3018 Args.hasArg(OPT_fretain_comments_from_system_headers); 3019 3020 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3021 switch (SSP) { 3022 default: 3023 Diags.Report(diag::err_drv_invalid_value) 3024 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3025 break; 3026 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3027 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3028 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3029 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3030 } 3031 3032 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3033 StringRef Val = A->getValue(); 3034 if (Val == "uninitialized") 3035 Opts.setTrivialAutoVarInit( 3036 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3037 else if (Val == "zero") 3038 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3039 else if (Val == "pattern") 3040 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3041 else 3042 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3043 } 3044 3045 // Parse -fsanitize= arguments. 3046 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3047 Diags, Opts.Sanitize); 3048 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3049 Opts.SanitizeAddressFieldPadding = 3050 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3051 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3052 3053 // -fxray-instrument 3054 Opts.XRayInstrument = 3055 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 3056 3057 // -fxray-always-emit-customevents 3058 Opts.XRayAlwaysEmitCustomEvents = 3059 Args.hasFlag(OPT_fxray_always_emit_customevents, 3060 OPT_fnoxray_always_emit_customevents, false); 3061 3062 // -fxray-always-emit-typedevents 3063 Opts.XRayAlwaysEmitTypedEvents = 3064 Args.hasFlag(OPT_fxray_always_emit_typedevents, 3065 OPT_fnoxray_always_emit_customevents, false); 3066 3067 // -fxray-{always,never}-instrument= filenames. 3068 Opts.XRayAlwaysInstrumentFiles = 3069 Args.getAllArgValues(OPT_fxray_always_instrument); 3070 Opts.XRayNeverInstrumentFiles = 3071 Args.getAllArgValues(OPT_fxray_never_instrument); 3072 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3073 3074 // -fforce-emit-vtables 3075 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3076 3077 // -fallow-editor-placeholders 3078 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3079 3080 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3081 3082 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3083 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3084 3085 StringRef Ver = A->getValue(); 3086 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3087 unsigned Major, Minor = 0; 3088 3089 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3090 // y or y.0 (4 <= y <= current version). 3091 if (!VerParts.first.startswith("0") && 3092 !VerParts.first.getAsInteger(10, Major) && 3093 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3094 (Major == 3 ? VerParts.second.size() == 1 && 3095 !VerParts.second.getAsInteger(10, Minor) 3096 : VerParts.first.size() == Ver.size() || 3097 VerParts.second == "0")) { 3098 // Got a valid version number. 3099 if (Major == 3 && Minor <= 8) 3100 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3101 else if (Major <= 4) 3102 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3103 else if (Major <= 6) 3104 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3105 else if (Major <= 7) 3106 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3107 } else if (Ver != "latest") { 3108 Diags.Report(diag::err_drv_invalid_value) 3109 << A->getAsString(Args) << A->getValue(); 3110 } 3111 } 3112 3113 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3114 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3115 } 3116 3117 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3118 switch (Action) { 3119 case frontend::ASTDeclList: 3120 case frontend::ASTDump: 3121 case frontend::ASTPrint: 3122 case frontend::ASTView: 3123 case frontend::EmitAssembly: 3124 case frontend::EmitBC: 3125 case frontend::EmitHTML: 3126 case frontend::EmitLLVM: 3127 case frontend::EmitLLVMOnly: 3128 case frontend::EmitCodeGenOnly: 3129 case frontend::EmitObj: 3130 case frontend::FixIt: 3131 case frontend::GenerateModule: 3132 case frontend::GenerateModuleInterface: 3133 case frontend::GenerateHeaderModule: 3134 case frontend::GeneratePCH: 3135 case frontend::GenerateInterfaceYAMLExpV1: 3136 case frontend::GenerateInterfaceTBEExpV1: 3137 case frontend::ParseSyntaxOnly: 3138 case frontend::ModuleFileInfo: 3139 case frontend::VerifyPCH: 3140 case frontend::PluginAction: 3141 case frontend::RewriteObjC: 3142 case frontend::RewriteTest: 3143 case frontend::RunAnalysis: 3144 case frontend::TemplightDump: 3145 case frontend::MigrateSource: 3146 return false; 3147 3148 case frontend::DumpCompilerOptions: 3149 case frontend::DumpRawTokens: 3150 case frontend::DumpTokens: 3151 case frontend::InitOnly: 3152 case frontend::PrintPreamble: 3153 case frontend::PrintPreprocessedInput: 3154 case frontend::RewriteMacros: 3155 case frontend::RunPreprocessorOnly: 3156 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3157 return true; 3158 } 3159 llvm_unreachable("invalid frontend action"); 3160 } 3161 3162 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3163 DiagnosticsEngine &Diags, 3164 frontend::ActionKind Action) { 3165 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 3166 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3167 Args.hasArg(OPT_pch_through_hdrstop_use); 3168 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3169 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ); 3170 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3171 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3172 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3173 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3174 3175 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3176 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3177 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3178 3179 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3180 StringRef Value(A->getValue()); 3181 size_t Comma = Value.find(','); 3182 unsigned Bytes = 0; 3183 unsigned EndOfLine = 0; 3184 3185 if (Comma == StringRef::npos || 3186 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3187 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3188 Diags.Report(diag::err_drv_preamble_format); 3189 else { 3190 Opts.PrecompiledPreambleBytes.first = Bytes; 3191 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3192 } 3193 } 3194 3195 // Add the __CET__ macro if a CFProtection option is set. 3196 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3197 StringRef Name = A->getValue(); 3198 if (Name == "branch") 3199 Opts.addMacroDef("__CET__=1"); 3200 else if (Name == "return") 3201 Opts.addMacroDef("__CET__=2"); 3202 else if (Name == "full") 3203 Opts.addMacroDef("__CET__=3"); 3204 } 3205 3206 // Add macros from the command line. 3207 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3208 if (A->getOption().matches(OPT_D)) 3209 Opts.addMacroDef(A->getValue()); 3210 else 3211 Opts.addMacroUndef(A->getValue()); 3212 } 3213 3214 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3215 3216 // Add the ordered list of -includes. 3217 for (const auto *A : Args.filtered(OPT_include)) 3218 Opts.Includes.emplace_back(A->getValue()); 3219 3220 for (const auto *A : Args.filtered(OPT_chain_include)) 3221 Opts.ChainedIncludes.emplace_back(A->getValue()); 3222 3223 for (const auto *A : Args.filtered(OPT_remap_file)) { 3224 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3225 3226 if (Split.second.empty()) { 3227 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3228 continue; 3229 } 3230 3231 Opts.addRemappedFile(Split.first, Split.second); 3232 } 3233 3234 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3235 StringRef Name = A->getValue(); 3236 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3237 .Case("libc++", ARCXX_libcxx) 3238 .Case("libstdc++", ARCXX_libstdcxx) 3239 .Case("none", ARCXX_nolib) 3240 .Default(~0U); 3241 if (Library == ~0U) 3242 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3243 else 3244 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3245 } 3246 3247 // Always avoid lexing editor placeholders when we're just running the 3248 // preprocessor as we never want to emit the 3249 // "editor placeholder in source file" error in PP only mode. 3250 if (isStrictlyPreprocessorAction(Action)) 3251 Opts.LexEditorPlaceholders = false; 3252 } 3253 3254 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3255 ArgList &Args, 3256 frontend::ActionKind Action) { 3257 if (isStrictlyPreprocessorAction(Action)) 3258 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3259 else 3260 Opts.ShowCPP = 0; 3261 3262 Opts.ShowComments = Args.hasArg(OPT_C); 3263 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3264 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3265 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3266 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3267 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3268 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3269 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3270 } 3271 3272 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3273 DiagnosticsEngine &Diags) { 3274 Opts.CodeModel = getCodeModel(Args, Diags); 3275 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 3276 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3277 StringRef Value = A->getValue(); 3278 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3279 .Case("default", llvm::EABI::Default) 3280 .Case("4", llvm::EABI::EABI4) 3281 .Case("5", llvm::EABI::EABI5) 3282 .Case("gnu", llvm::EABI::GNU) 3283 .Default(llvm::EABI::Unknown); 3284 if (EABIVersion == llvm::EABI::Unknown) 3285 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3286 << Value; 3287 else 3288 Opts.EABIVersion = EABIVersion; 3289 } 3290 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 3291 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 3292 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3293 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 3294 Opts.Triple = Args.getLastArgValue(OPT_triple); 3295 // Use the default target triple if unspecified. 3296 if (Opts.Triple.empty()) 3297 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3298 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3299 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3300 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3301 Opts.NVPTXUseShortPointers = Args.hasFlag( 3302 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3303 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3304 llvm::VersionTuple Version; 3305 if (Version.tryParse(A->getValue())) 3306 Diags.Report(diag::err_drv_invalid_value) 3307 << A->getAsString(Args) << A->getValue(); 3308 else 3309 Opts.SDKVersion = Version; 3310 } 3311 } 3312 3313 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3314 const char *const *ArgBegin, 3315 const char *const *ArgEnd, 3316 DiagnosticsEngine &Diags) { 3317 bool Success = true; 3318 3319 // Parse the arguments. 3320 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 3321 const unsigned IncludedFlagsBitmask = options::CC1Option; 3322 unsigned MissingArgIndex, MissingArgCount; 3323 InputArgList Args = 3324 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 3325 MissingArgCount, IncludedFlagsBitmask); 3326 LangOptions &LangOpts = *Res.getLangOpts(); 3327 3328 // Check for missing argument error. 3329 if (MissingArgCount) { 3330 Diags.Report(diag::err_drv_missing_argument) 3331 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3332 Success = false; 3333 } 3334 3335 // Issue errors on unknown arguments. 3336 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3337 auto ArgString = A->getAsString(Args); 3338 std::string Nearest; 3339 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3340 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3341 else 3342 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3343 << ArgString << Nearest; 3344 Success = false; 3345 } 3346 3347 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3348 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3349 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3350 Success &= 3351 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3352 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3353 ParseCommentArgs(LangOpts.CommentOpts, Args); 3354 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3355 // FIXME: We shouldn't have to pass the DashX option around here 3356 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3357 LangOpts.IsHeaderFile); 3358 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3359 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3360 Res.getTargetOpts(), Res.getFrontendOpts()); 3361 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3362 Res.getFileSystemOpts().WorkingDir); 3363 llvm::Triple T(Res.getTargetOpts().Triple); 3364 if (DashX.getFormat() == InputKind::Precompiled || 3365 DashX.getLanguage() == InputKind::LLVM_IR) { 3366 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3367 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3368 // what the input type is. 3369 if (Args.hasArg(OPT_fobjc_arc)) 3370 LangOpts.ObjCAutoRefCount = 1; 3371 // PIClevel and PIELevel are needed during code generation and this should be 3372 // set regardless of the input type. 3373 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3374 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3375 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3376 Diags, LangOpts.Sanitize); 3377 } else { 3378 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3379 // FIXME: Should we really be calling this for an InputKind::Asm input? 3380 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3381 Res.getPreprocessorOpts(), Diags); 3382 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3383 LangOpts.ObjCExceptions = 1; 3384 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3385 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3386 // preprocessed input as we don't expect it to be used with -std=libc++ 3387 // anyway. 3388 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3389 } 3390 } 3391 3392 LangOpts.FunctionAlignment = 3393 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3394 3395 if (LangOpts.CUDA) { 3396 // During CUDA device-side compilation, the aux triple is the 3397 // triple used for host compilation. 3398 if (LangOpts.CUDAIsDevice) 3399 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3400 } 3401 3402 // Set the triple of the host for OpenMP device compile. 3403 if (LangOpts.OpenMPIsDevice) 3404 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3405 3406 // FIXME: Override value name discarding when asan or msan is used because the 3407 // backend passes depend on the name of the alloca in order to print out 3408 // names. 3409 Res.getCodeGenOpts().DiscardValueNames &= 3410 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3411 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3412 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3413 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3414 3415 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3416 Res.getFrontendOpts().ProgramAction); 3417 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3418 Res.getFrontendOpts().ProgramAction); 3419 3420 // Turn on -Wspir-compat for SPIR target. 3421 if (T.isSPIR()) 3422 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3423 3424 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3425 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3426 !Res.getLangOpts()->Sanitize.empty()) { 3427 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3428 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3429 } 3430 return Success; 3431 } 3432 3433 std::string CompilerInvocation::getModuleHash() const { 3434 // Note: For QoI reasons, the things we use as a hash here should all be 3435 // dumped via the -module-info flag. 3436 using llvm::hash_code; 3437 using llvm::hash_value; 3438 using llvm::hash_combine; 3439 3440 // Start the signature with the compiler version. 3441 // FIXME: We'd rather use something more cryptographically sound than 3442 // CityHash, but this will do for now. 3443 hash_code code = hash_value(getClangFullRepositoryVersion()); 3444 3445 // Extend the signature with the language options 3446 #define LANGOPT(Name, Bits, Default, Description) \ 3447 code = hash_combine(code, LangOpts->Name); 3448 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3449 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3450 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3451 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3452 #include "clang/Basic/LangOptions.def" 3453 3454 for (StringRef Feature : LangOpts->ModuleFeatures) 3455 code = hash_combine(code, Feature); 3456 3457 // Extend the signature with the target options. 3458 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3459 TargetOpts->ABI); 3460 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3461 code = hash_combine(code, FeatureAsWritten); 3462 3463 // Extend the signature with preprocessor options. 3464 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3465 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3466 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3467 3468 for (const auto &I : getPreprocessorOpts().Macros) { 3469 // If we're supposed to ignore this macro for the purposes of modules, 3470 // don't put it into the hash. 3471 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3472 // Check whether we're ignoring this macro. 3473 StringRef MacroDef = I.first; 3474 if (hsOpts.ModulesIgnoreMacros.count( 3475 llvm::CachedHashString(MacroDef.split('=').first))) 3476 continue; 3477 } 3478 3479 code = hash_combine(code, I.first, I.second); 3480 } 3481 3482 // Extend the signature with the sysroot and other header search options. 3483 code = hash_combine(code, hsOpts.Sysroot, 3484 hsOpts.ModuleFormat, 3485 hsOpts.UseDebugInfo, 3486 hsOpts.UseBuiltinIncludes, 3487 hsOpts.UseStandardSystemIncludes, 3488 hsOpts.UseStandardCXXIncludes, 3489 hsOpts.UseLibcxx, 3490 hsOpts.ModulesValidateDiagnosticOptions); 3491 code = hash_combine(code, hsOpts.ResourceDir); 3492 3493 // Extend the signature with the user build path. 3494 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3495 3496 // Extend the signature with the module file extensions. 3497 const FrontendOptions &frontendOpts = getFrontendOpts(); 3498 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3499 code = ext->hashExtension(code); 3500 } 3501 3502 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3503 // affects the debug info in the PCM. 3504 if (getCodeGenOpts().DebugTypeExtRefs) 3505 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3506 code = hash_combine(code, KeyValue.first, KeyValue.second); 3507 3508 // Extend the signature with the enabled sanitizers, if at least one is 3509 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3510 SanitizerSet SanHash = LangOpts->Sanitize; 3511 SanHash.clear(getPPTransparentSanitizers()); 3512 if (!SanHash.empty()) 3513 code = hash_combine(code, SanHash.Mask); 3514 3515 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3516 } 3517 3518 template<typename IntTy> 3519 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 3520 IntTy Default, 3521 DiagnosticsEngine *Diags) { 3522 IntTy Res = Default; 3523 if (Arg *A = Args.getLastArg(Id)) { 3524 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 3525 if (Diags) 3526 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 3527 << A->getValue(); 3528 } 3529 } 3530 return Res; 3531 } 3532 3533 namespace clang { 3534 3535 // Declared in clang/Frontend/Utils.h. 3536 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 3537 DiagnosticsEngine *Diags) { 3538 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 3539 } 3540 3541 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 3542 uint64_t Default, 3543 DiagnosticsEngine *Diags) { 3544 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 3545 } 3546 3547 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3548 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3549 DiagnosticsEngine &Diags) { 3550 return createVFSFromCompilerInvocation(CI, Diags, 3551 llvm::vfs::getRealFileSystem()); 3552 } 3553 3554 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3555 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3556 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3557 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3558 return BaseFS; 3559 3560 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3561 // earlier vfs files are on the bottom 3562 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3563 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3564 Result->getBufferForFile(File); 3565 if (!Buffer) { 3566 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3567 continue; 3568 } 3569 3570 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3571 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3572 /*DiagContext*/ nullptr, Result); 3573 if (!FS) { 3574 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3575 continue; 3576 } 3577 3578 Result = FS; 3579 } 3580 return Result; 3581 } 3582 3583 } // namespace clang 3584