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); 763 764 llvm::Triple T(TargetOpts.Triple); 765 llvm::Triple::ArchType Arch = T.getArch(); 766 if (Opts.OptimizationLevel > 0 && 767 (Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64)) 768 Opts.EnableDebugEntryValues = Args.hasArg(OPT_femit_debug_entry_values); 769 770 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 771 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 772 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 773 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 774 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 775 OPT_fuse_register_sized_bitfield_access); 776 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 777 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 778 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 779 Args.hasArg(OPT_new_struct_path_tbaa); 780 Opts.FineGrainedBitfieldAccesses = 781 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 782 OPT_fno_fine_grained_bitfield_accesses, false); 783 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 784 Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line); 785 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 786 Opts.NoCommon = Args.hasArg(OPT_fno_common); 787 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 788 Opts.OptimizeSize = getOptimizationLevelSize(Args); 789 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 790 Args.hasArg(OPT_ffreestanding)); 791 if (Opts.SimplifyLibCalls) 792 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 793 Opts.UnrollLoops = 794 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 795 (Opts.OptimizationLevel > 1)); 796 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 797 798 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 799 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 800 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 801 Opts.DebugInfoForProfiling = Args.hasFlag( 802 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 803 Opts.DebugNameTable = static_cast<unsigned>( 804 Args.hasArg(OPT_ggnu_pubnames) 805 ? llvm::DICompileUnit::DebugNameTableKind::GNU 806 : Args.hasArg(OPT_gpubnames) 807 ? llvm::DICompileUnit::DebugNameTableKind::Default 808 : llvm::DICompileUnit::DebugNameTableKind::None); 809 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 810 811 setPGOInstrumentor(Opts, Args, Diags); 812 Opts.InstrProfileOutput = 813 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 814 Opts.ProfileInstrumentUsePath = 815 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 816 if (!Opts.ProfileInstrumentUsePath.empty()) 817 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 818 Opts.ProfileRemappingFile = 819 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ); 820 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 821 Diags.Report(diag::err_drv_argument_only_allowed_with) 822 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 823 << "-fexperimental-new-pass-manager"; 824 } 825 826 Opts.CoverageMapping = 827 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 828 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 829 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 830 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 831 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 832 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 833 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 834 Opts.RegisterGlobalDtorsWithAtExit = 835 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 836 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 837 Opts.CodeModel = TargetOpts.CodeModel; 838 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 839 Opts.DisableFPElim = 840 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 841 Opts.DisableFree = Args.hasArg(OPT_disable_free); 842 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 843 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 844 Opts.NoEscapingBlockTailCalls = 845 Args.hasArg(OPT_fno_escaping_block_tail_calls); 846 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 847 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 848 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 849 Args.hasArg(OPT_cl_fast_relaxed_math); 850 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 851 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 852 Args.hasArg(OPT_cl_finite_math_only) || 853 Args.hasArg(OPT_cl_fast_relaxed_math)); 854 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 855 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 856 Args.hasArg(OPT_cl_finite_math_only) || 857 Args.hasArg(OPT_cl_fast_relaxed_math)); 858 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 859 Args.hasArg(OPT_cl_no_signed_zeros) || 860 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 861 Args.hasArg(OPT_cl_fast_relaxed_math)); 862 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 863 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) || 864 (Args.hasArg(OPT_fcuda_is_device) && 865 Args.hasArg(OPT_fcuda_flush_denormals_to_zero)); 866 Opts.CorrectlyRoundedDivSqrt = 867 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 868 Opts.UniformWGSize = 869 Args.hasArg(OPT_cl_uniform_work_group_size); 870 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 871 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 872 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 873 Opts.StrictFloatCastOverflow = 874 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 875 876 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 877 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 878 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 879 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 880 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 881 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 882 Opts.IncrementalLinkerCompatible = 883 Args.hasArg(OPT_mincremental_linker_compatible); 884 Opts.PIECopyRelocations = 885 Args.hasArg(OPT_mpie_copy_relocations); 886 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 887 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 888 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 889 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 890 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 891 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 892 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 893 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 894 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 895 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 896 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 897 Args.hasArg(OPT_cl_fast_relaxed_math); 898 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 899 Opts.RelocationModel = getRelocModel(Args, Diags); 900 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 901 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 902 Diags.Report(diag::err_drv_invalid_value) 903 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 904 << Opts.ThreadModel; 905 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 906 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 907 908 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 909 OPT_fno_function_sections, false); 910 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 911 OPT_fno_data_sections, false); 912 Opts.StackSizeSection = 913 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 914 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 915 OPT_fno_unique_section_names, true); 916 917 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 918 919 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 920 921 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 922 923 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 924 925 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 926 Opts.PrepareForThinLTO = false; 927 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 928 StringRef S = A->getValue(); 929 if (S == "thin") 930 Opts.PrepareForThinLTO = true; 931 else if (S != "full") 932 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 933 } 934 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 935 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 936 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 937 if (IK.getLanguage() != InputKind::LLVM_IR) 938 Diags.Report(diag::err_drv_argument_only_allowed_with) 939 << A->getAsString(Args) << "-x ir"; 940 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 941 } 942 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 943 Opts.SaveTempsFilePrefix = 944 llvm::StringSwitch<std::string>(A->getValue()) 945 .Case("obj", FrontendOpts.OutputFile) 946 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 947 948 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 949 950 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 951 952 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 953 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 954 955 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 956 957 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 958 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 959 960 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 961 962 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 963 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 964 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 965 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 966 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 967 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 968 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 969 Opts.CoverageNoFunctionNamesInData = 970 Args.hasArg(OPT_coverage_no_function_names_in_data); 971 Opts.ProfileFilterFiles = 972 Args.getLastArgValue(OPT_fprofile_filter_files_EQ); 973 Opts.ProfileExcludeFiles = 974 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ); 975 Opts.CoverageExitBlockBeforeBody = 976 Args.hasArg(OPT_coverage_exit_block_before_body); 977 if (Args.hasArg(OPT_coverage_version_EQ)) { 978 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 979 if (CoverageVersion.size() != 4) { 980 Diags.Report(diag::err_drv_invalid_value) 981 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 982 << CoverageVersion; 983 } else { 984 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 985 } 986 } 987 } 988 // Handle -fembed-bitcode option. 989 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 990 StringRef Name = A->getValue(); 991 unsigned Model = llvm::StringSwitch<unsigned>(Name) 992 .Case("off", CodeGenOptions::Embed_Off) 993 .Case("all", CodeGenOptions::Embed_All) 994 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 995 .Case("marker", CodeGenOptions::Embed_Marker) 996 .Default(~0U); 997 if (Model == ~0U) { 998 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 999 Success = false; 1000 } else 1001 Opts.setEmbedBitcode( 1002 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1003 } 1004 // FIXME: For backend options that are not yet recorded as function 1005 // attributes in the IR, keep track of them so we can embed them in a 1006 // separate data section and use them when building the bitcode. 1007 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1008 for (const auto &A : Args) { 1009 // Do not encode output and input. 1010 if (A->getOption().getID() == options::OPT_o || 1011 A->getOption().getID() == options::OPT_INPUT || 1012 A->getOption().getID() == options::OPT_x || 1013 A->getOption().getID() == options::OPT_fembed_bitcode || 1014 (A->getOption().getGroup().isValid() && 1015 A->getOption().getGroup().getID() == options::OPT_W_Group)) 1016 continue; 1017 ArgStringList ASL; 1018 A->render(Args, ASL); 1019 for (const auto &arg : ASL) { 1020 StringRef ArgStr(arg); 1021 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1022 // using \00 to separate each commandline options. 1023 Opts.CmdArgs.push_back('\0'); 1024 } 1025 } 1026 } 1027 1028 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1029 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1030 Opts.InstrumentFunctionsAfterInlining = 1031 Args.hasArg(OPT_finstrument_functions_after_inlining); 1032 Opts.InstrumentFunctionEntryBare = 1033 Args.hasArg(OPT_finstrument_function_entry_bare); 1034 1035 Opts.XRayInstrumentFunctions = 1036 Args.hasArg(OPT_fxray_instrument); 1037 Opts.XRayAlwaysEmitCustomEvents = 1038 Args.hasArg(OPT_fxray_always_emit_customevents); 1039 Opts.XRayAlwaysEmitTypedEvents = 1040 Args.hasArg(OPT_fxray_always_emit_typedevents); 1041 Opts.XRayInstructionThreshold = 1042 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1043 1044 auto XRayInstrBundles = 1045 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1046 if (XRayInstrBundles.empty()) 1047 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1048 else 1049 for (const auto &A : XRayInstrBundles) 1050 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1051 Diags, Opts.XRayInstrumentationBundle); 1052 1053 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1054 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1055 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1056 1057 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1058 StringRef Name = A->getValue(); 1059 if (Name == "full") { 1060 Opts.CFProtectionReturn = 1; 1061 Opts.CFProtectionBranch = 1; 1062 } else if (Name == "return") 1063 Opts.CFProtectionReturn = 1; 1064 else if (Name == "branch") 1065 Opts.CFProtectionBranch = 1; 1066 else if (Name != "none") { 1067 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1068 Success = false; 1069 } 1070 } 1071 1072 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1073 OPT_compress_debug_sections_EQ)) { 1074 if (A->getOption().getID() == OPT_compress_debug_sections) { 1075 // TODO: be more clever about the compression type auto-detection 1076 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1077 } else { 1078 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1079 .Case("none", llvm::DebugCompressionType::None) 1080 .Case("zlib", llvm::DebugCompressionType::Z) 1081 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1082 .Default(llvm::DebugCompressionType::None); 1083 Opts.setCompressDebugSections(DCT); 1084 } 1085 } 1086 1087 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1088 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1089 for (auto *A : 1090 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1091 CodeGenOptions::BitcodeFileToLink F; 1092 F.Filename = A->getValue(); 1093 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1094 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1095 // When linking CUDA bitcode, propagate function attributes so that 1096 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1097 F.PropagateAttrs = true; 1098 F.Internalize = true; 1099 } 1100 Opts.LinkBitcodeFiles.push_back(F); 1101 } 1102 Opts.SanitizeCoverageType = 1103 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1104 Opts.SanitizeCoverageIndirectCalls = 1105 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1106 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1107 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1108 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1109 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1110 Opts.SanitizeCoverage8bitCounters = 1111 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1112 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1113 Opts.SanitizeCoverageTracePCGuard = 1114 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1115 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1116 Opts.SanitizeCoverageInline8bitCounters = 1117 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1118 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1119 Opts.SanitizeCoverageStackDepth = 1120 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1121 Opts.SanitizeMemoryTrackOrigins = 1122 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1123 Opts.SanitizeMemoryUseAfterDtor = 1124 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1125 OPT_fno_sanitize_memory_use_after_dtor, 1126 false); 1127 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1128 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1129 Opts.SanitizeCfiICallGeneralizePointers = 1130 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1131 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1132 if (Arg *A = Args.getLastArg( 1133 OPT_fsanitize_address_poison_custom_array_cookie, 1134 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1135 Opts.SanitizeAddressPoisonCustomArrayCookie = 1136 A->getOption().getID() == 1137 OPT_fsanitize_address_poison_custom_array_cookie; 1138 } 1139 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1140 OPT_fno_sanitize_address_use_after_scope)) { 1141 Opts.SanitizeAddressUseAfterScope = 1142 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1143 } 1144 Opts.SanitizeAddressGlobalsDeadStripping = 1145 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1146 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1147 OPT_fno_sanitize_address_use_odr_indicator)) { 1148 Opts.SanitizeAddressUseOdrIndicator = 1149 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1150 } 1151 Opts.SSPBufferSize = 1152 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1153 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1154 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1155 StringRef Val = A->getValue(); 1156 unsigned StackAlignment = Opts.StackAlignment; 1157 Val.getAsInteger(10, StackAlignment); 1158 Opts.StackAlignment = StackAlignment; 1159 } 1160 1161 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1162 StringRef Val = A->getValue(); 1163 unsigned StackProbeSize = Opts.StackProbeSize; 1164 Val.getAsInteger(0, StackProbeSize); 1165 Opts.StackProbeSize = StackProbeSize; 1166 } 1167 1168 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1169 1170 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1171 StringRef Name = A->getValue(); 1172 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1173 .Case("legacy", CodeGenOptions::Legacy) 1174 .Case("non-legacy", CodeGenOptions::NonLegacy) 1175 .Case("mixed", CodeGenOptions::Mixed) 1176 .Default(~0U); 1177 if (Method == ~0U) { 1178 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1179 Success = false; 1180 } else { 1181 Opts.setObjCDispatchMethod( 1182 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1183 } 1184 } 1185 1186 1187 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1188 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1189 1190 if (Args.getLastArg(OPT_femulated_tls) || 1191 Args.getLastArg(OPT_fno_emulated_tls)) { 1192 Opts.ExplicitEmulatedTLS = true; 1193 Opts.EmulatedTLS = 1194 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1195 } 1196 1197 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1198 StringRef Name = A->getValue(); 1199 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1200 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1201 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1202 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1203 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1204 .Default(~0U); 1205 if (Model == ~0U) { 1206 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1207 Success = false; 1208 } else { 1209 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1210 } 1211 } 1212 1213 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1214 StringRef Val = A->getValue(); 1215 if (Val == "ieee") 1216 Opts.FPDenormalMode = "ieee"; 1217 else if (Val == "preserve-sign") 1218 Opts.FPDenormalMode = "preserve-sign"; 1219 else if (Val == "positive-zero") 1220 Opts.FPDenormalMode = "positive-zero"; 1221 else 1222 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1223 } 1224 1225 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1226 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1227 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1228 } else { 1229 assert(A->getOption().matches(OPT_freg_struct_return)); 1230 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1231 } 1232 } 1233 1234 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1235 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1236 bool NeedLocTracking = false; 1237 1238 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 1239 if (!Opts.OptRecordFile.empty()) 1240 NeedLocTracking = true; 1241 1242 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1243 Opts.OptRecordPasses = A->getValue(); 1244 NeedLocTracking = true; 1245 } 1246 1247 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1248 Opts.OptRecordFormat = A->getValue(); 1249 NeedLocTracking = true; 1250 } 1251 1252 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1253 Opts.OptimizationRemarkPattern = 1254 GenerateOptimizationRemarkRegex(Diags, Args, A); 1255 NeedLocTracking = true; 1256 } 1257 1258 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1259 Opts.OptimizationRemarkMissedPattern = 1260 GenerateOptimizationRemarkRegex(Diags, Args, A); 1261 NeedLocTracking = true; 1262 } 1263 1264 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1265 Opts.OptimizationRemarkAnalysisPattern = 1266 GenerateOptimizationRemarkRegex(Diags, Args, A); 1267 NeedLocTracking = true; 1268 } 1269 1270 Opts.DiagnosticsWithHotness = 1271 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1272 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1273 bool UsingProfile = UsingSampleProfile || 1274 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1275 1276 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1277 // An IR file will contain PGO as metadata 1278 IK.getLanguage() != InputKind::LLVM_IR) 1279 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1280 << "-fdiagnostics-show-hotness"; 1281 1282 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1283 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1284 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1285 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1286 << "-fdiagnostics-hotness-threshold="; 1287 1288 // If the user requested to use a sample profile for PGO, then the 1289 // backend will need to track source location information so the profile 1290 // can be incorporated into the IR. 1291 if (UsingSampleProfile) 1292 NeedLocTracking = true; 1293 1294 // If the user requested a flag that requires source locations available in 1295 // the backend, make sure that the backend tracks source location information. 1296 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1297 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1298 1299 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1300 1301 // Parse -fsanitize-recover= arguments. 1302 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1303 parseSanitizerKinds("-fsanitize-recover=", 1304 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1305 Opts.SanitizeRecover); 1306 parseSanitizerKinds("-fsanitize-trap=", 1307 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1308 Opts.SanitizeTrap); 1309 1310 Opts.CudaGpuBinaryFileName = 1311 Args.getLastArgValue(OPT_fcuda_include_gpubinary); 1312 1313 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1314 1315 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1316 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1317 1318 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1319 1320 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1321 1322 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1323 StringRef SignScope = A->getValue(); 1324 1325 if (SignScope.equals_lower("none")) 1326 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1327 else if (SignScope.equals_lower("all")) 1328 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1329 else if (SignScope.equals_lower("non-leaf")) 1330 Opts.setSignReturnAddress( 1331 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1332 else 1333 Diags.Report(diag::err_drv_invalid_value) 1334 << A->getAsString(Args) << SignScope; 1335 1336 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1337 StringRef SignKey = A->getValue(); 1338 if (!SignScope.empty() && !SignKey.empty()) { 1339 if (SignKey.equals_lower("a_key")) 1340 Opts.setSignReturnAddressKey( 1341 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1342 else if (SignKey.equals_lower("b_key")) 1343 Opts.setSignReturnAddressKey( 1344 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1345 else 1346 Diags.Report(diag::err_drv_invalid_value) 1347 << A->getAsString(Args) << SignKey; 1348 } 1349 } 1350 } 1351 1352 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1353 1354 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1355 1356 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1357 1358 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1359 1360 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1361 1362 Opts.SymbolPartition = Args.getLastArgValue(OPT_fsymbol_partition_EQ); 1363 1364 return Success; 1365 } 1366 1367 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1368 ArgList &Args) { 1369 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1370 Opts.Targets = Args.getAllArgValues(OPT_MT); 1371 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1372 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1373 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1374 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1375 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1376 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1377 if (Args.hasArg(OPT_show_includes)) { 1378 // Writing both /showIncludes and preprocessor output to stdout 1379 // would produce interleaved output, so use stderr for /showIncludes. 1380 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1381 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1382 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1383 else 1384 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1385 } else { 1386 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1387 } 1388 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1389 Opts.ModuleDependencyOutputDir = 1390 Args.getLastArgValue(OPT_module_dependency_dir); 1391 if (Args.hasArg(OPT_MV)) 1392 Opts.OutputFormat = DependencyOutputFormat::NMake; 1393 // Add sanitizer blacklists as extra dependencies. 1394 // They won't be discovered by the regular preprocessor, so 1395 // we let make / ninja to know about this implicit dependency. 1396 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1397 // Only the -fmodule-file=<file> form. 1398 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1399 StringRef Val = A->getValue(); 1400 if (Val.find('=') == StringRef::npos) 1401 Opts.ExtraDeps.push_back(Val); 1402 } 1403 } 1404 1405 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1406 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1407 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1408 // Support both clang's -f[no-]color-diagnostics and gcc's 1409 // -f[no-]diagnostics-colors[=never|always|auto]. 1410 enum { 1411 Colors_On, 1412 Colors_Off, 1413 Colors_Auto 1414 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1415 for (auto *A : Args) { 1416 const Option &O = A->getOption(); 1417 if (O.matches(options::OPT_fcolor_diagnostics) || 1418 O.matches(options::OPT_fdiagnostics_color)) { 1419 ShowColors = Colors_On; 1420 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1421 O.matches(options::OPT_fno_diagnostics_color)) { 1422 ShowColors = Colors_Off; 1423 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1424 StringRef Value(A->getValue()); 1425 if (Value == "always") 1426 ShowColors = Colors_On; 1427 else if (Value == "never") 1428 ShowColors = Colors_Off; 1429 else if (Value == "auto") 1430 ShowColors = Colors_Auto; 1431 } 1432 } 1433 return ShowColors == Colors_On || 1434 (ShowColors == Colors_Auto && 1435 llvm::sys::Process::StandardErrHasColors()); 1436 } 1437 1438 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1439 DiagnosticsEngine *Diags) { 1440 bool Success = true; 1441 for (const auto &Prefix : VerifyPrefixes) { 1442 // Every prefix must start with a letter and contain only alphanumeric 1443 // characters, hyphens, and underscores. 1444 auto BadChar = llvm::find_if(Prefix, [](char C) { 1445 return !isAlphanumeric(C) && C != '-' && C != '_'; 1446 }); 1447 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1448 Success = false; 1449 if (Diags) { 1450 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1451 Diags->Report(diag::note_drv_verify_prefix_spelling); 1452 } 1453 } 1454 } 1455 return Success; 1456 } 1457 1458 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1459 DiagnosticsEngine *Diags, 1460 bool DefaultDiagColor, bool DefaultShowOpt) { 1461 bool Success = true; 1462 1463 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1464 if (Arg *A = 1465 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1466 Opts.DiagnosticSerializationFile = A->getValue(); 1467 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1468 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1469 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1470 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1471 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1472 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1473 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1474 OPT_fno_show_column, 1475 /*Default=*/true); 1476 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1477 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1478 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1479 Opts.ShowOptionNames = 1480 Args.hasFlag(OPT_fdiagnostics_show_option, 1481 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1482 1483 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1484 1485 // Default behavior is to not to show note include stacks. 1486 Opts.ShowNoteIncludeStack = false; 1487 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1488 OPT_fno_diagnostics_show_note_include_stack)) 1489 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1490 Opts.ShowNoteIncludeStack = true; 1491 1492 StringRef ShowOverloads = 1493 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1494 if (ShowOverloads == "best") 1495 Opts.setShowOverloads(Ovl_Best); 1496 else if (ShowOverloads == "all") 1497 Opts.setShowOverloads(Ovl_All); 1498 else { 1499 Success = false; 1500 if (Diags) 1501 Diags->Report(diag::err_drv_invalid_value) 1502 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1503 << ShowOverloads; 1504 } 1505 1506 StringRef ShowCategory = 1507 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1508 if (ShowCategory == "none") 1509 Opts.ShowCategories = 0; 1510 else if (ShowCategory == "id") 1511 Opts.ShowCategories = 1; 1512 else if (ShowCategory == "name") 1513 Opts.ShowCategories = 2; 1514 else { 1515 Success = false; 1516 if (Diags) 1517 Diags->Report(diag::err_drv_invalid_value) 1518 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1519 << ShowCategory; 1520 } 1521 1522 StringRef Format = 1523 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1524 if (Format == "clang") 1525 Opts.setFormat(DiagnosticOptions::Clang); 1526 else if (Format == "msvc") 1527 Opts.setFormat(DiagnosticOptions::MSVC); 1528 else if (Format == "msvc-fallback") { 1529 Opts.setFormat(DiagnosticOptions::MSVC); 1530 Opts.CLFallbackMode = true; 1531 } else if (Format == "vi") 1532 Opts.setFormat(DiagnosticOptions::Vi); 1533 else { 1534 Success = false; 1535 if (Diags) 1536 Diags->Report(diag::err_drv_invalid_value) 1537 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1538 << Format; 1539 } 1540 1541 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1542 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1543 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1544 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1545 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1546 if (Args.hasArg(OPT_verify)) 1547 Opts.VerifyPrefixes.push_back("expected"); 1548 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1549 // then sort it to prepare for fast lookup using std::binary_search. 1550 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1551 Opts.VerifyDiagnostics = false; 1552 Success = false; 1553 } 1554 else 1555 llvm::sort(Opts.VerifyPrefixes); 1556 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1557 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1558 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1559 Diags, DiagMask); 1560 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1561 DiagMask = DiagnosticLevelMask::All; 1562 Opts.setVerifyIgnoreUnexpected(DiagMask); 1563 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1564 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1565 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1566 Opts.MacroBacktraceLimit = 1567 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1568 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1569 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1570 Args, OPT_ftemplate_backtrace_limit, 1571 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1572 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1573 Args, OPT_fconstexpr_backtrace_limit, 1574 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1575 Opts.SpellCheckingLimit = getLastArgIntValue( 1576 Args, OPT_fspell_checking_limit, 1577 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1578 Opts.SnippetLineLimit = getLastArgIntValue( 1579 Args, OPT_fcaret_diagnostics_max_lines, 1580 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1581 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1582 DiagnosticOptions::DefaultTabStop, Diags); 1583 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1584 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1585 if (Diags) 1586 Diags->Report(diag::warn_ignoring_ftabstop_value) 1587 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1588 } 1589 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1590 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1591 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1592 1593 return Success; 1594 } 1595 1596 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1597 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1598 } 1599 1600 /// Parse the argument to the -ftest-module-file-extension 1601 /// command-line argument. 1602 /// 1603 /// \returns true on error, false on success. 1604 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1605 std::string &BlockName, 1606 unsigned &MajorVersion, 1607 unsigned &MinorVersion, 1608 bool &Hashed, 1609 std::string &UserInfo) { 1610 SmallVector<StringRef, 5> Args; 1611 Arg.split(Args, ':', 5); 1612 if (Args.size() < 5) 1613 return true; 1614 1615 BlockName = Args[0]; 1616 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1617 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1618 if (Args[3].getAsInteger(2, Hashed)) return true; 1619 if (Args.size() > 4) 1620 UserInfo = Args[4]; 1621 return false; 1622 } 1623 1624 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1625 DiagnosticsEngine &Diags, 1626 bool &IsHeaderFile) { 1627 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1628 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1629 switch (A->getOption().getID()) { 1630 default: 1631 llvm_unreachable("Invalid option in group!"); 1632 case OPT_ast_list: 1633 Opts.ProgramAction = frontend::ASTDeclList; break; 1634 case OPT_ast_dump_all_EQ: 1635 case OPT_ast_dump_EQ: { 1636 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1637 .CaseLower("default", ADOF_Default) 1638 .CaseLower("json", ADOF_JSON) 1639 .Default(std::numeric_limits<unsigned>::max()); 1640 1641 if (Val != std::numeric_limits<unsigned>::max()) 1642 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1643 else { 1644 Diags.Report(diag::err_drv_invalid_value) 1645 << A->getAsString(Args) << A->getValue(); 1646 Opts.ASTDumpFormat = ADOF_Default; 1647 } 1648 LLVM_FALLTHROUGH; 1649 } 1650 case OPT_ast_dump: 1651 case OPT_ast_dump_all: 1652 case OPT_ast_dump_lookups: 1653 Opts.ProgramAction = frontend::ASTDump; break; 1654 case OPT_ast_print: 1655 Opts.ProgramAction = frontend::ASTPrint; break; 1656 case OPT_ast_view: 1657 Opts.ProgramAction = frontend::ASTView; break; 1658 case OPT_compiler_options_dump: 1659 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1660 case OPT_dump_raw_tokens: 1661 Opts.ProgramAction = frontend::DumpRawTokens; break; 1662 case OPT_dump_tokens: 1663 Opts.ProgramAction = frontend::DumpTokens; break; 1664 case OPT_S: 1665 Opts.ProgramAction = frontend::EmitAssembly; break; 1666 case OPT_emit_llvm_bc: 1667 Opts.ProgramAction = frontend::EmitBC; break; 1668 case OPT_emit_html: 1669 Opts.ProgramAction = frontend::EmitHTML; break; 1670 case OPT_emit_llvm: 1671 Opts.ProgramAction = frontend::EmitLLVM; break; 1672 case OPT_emit_llvm_only: 1673 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1674 case OPT_emit_codegen_only: 1675 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1676 case OPT_emit_obj: 1677 Opts.ProgramAction = frontend::EmitObj; break; 1678 case OPT_fixit_EQ: 1679 Opts.FixItSuffix = A->getValue(); 1680 LLVM_FALLTHROUGH; 1681 case OPT_fixit: 1682 Opts.ProgramAction = frontend::FixIt; break; 1683 case OPT_emit_module: 1684 Opts.ProgramAction = frontend::GenerateModule; break; 1685 case OPT_emit_module_interface: 1686 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1687 case OPT_emit_header_module: 1688 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1689 case OPT_emit_pch: 1690 Opts.ProgramAction = frontend::GeneratePCH; break; 1691 case OPT_emit_iterface_stubs: { 1692 llvm::Optional<frontend::ActionKind> ProgramAction = 1693 llvm::StringSwitch<llvm::Optional<frontend::ActionKind>>( 1694 Args.hasArg(OPT_iterface_stub_version_EQ) 1695 ? Args.getLastArgValue(OPT_iterface_stub_version_EQ) 1696 : "") 1697 .Case("experimental-yaml-elf-v1", 1698 frontend::GenerateInterfaceYAMLExpV1) 1699 .Case("experimental-tapi-elf-v1", 1700 frontend::GenerateInterfaceTBEExpV1) 1701 .Default(llvm::None); 1702 if (!ProgramAction) 1703 Diags.Report(diag::err_drv_invalid_value) 1704 << "Must specify a valid interface stub format type using " 1705 << "-interface-stub-version=<experimental-tapi-elf-v1 | " 1706 "experimental-yaml-elf-v1>"; 1707 Opts.ProgramAction = *ProgramAction; 1708 break; 1709 } 1710 case OPT_init_only: 1711 Opts.ProgramAction = frontend::InitOnly; break; 1712 case OPT_fsyntax_only: 1713 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1714 case OPT_module_file_info: 1715 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1716 case OPT_verify_pch: 1717 Opts.ProgramAction = frontend::VerifyPCH; break; 1718 case OPT_print_preamble: 1719 Opts.ProgramAction = frontend::PrintPreamble; break; 1720 case OPT_E: 1721 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1722 case OPT_templight_dump: 1723 Opts.ProgramAction = frontend::TemplightDump; break; 1724 case OPT_rewrite_macros: 1725 Opts.ProgramAction = frontend::RewriteMacros; break; 1726 case OPT_rewrite_objc: 1727 Opts.ProgramAction = frontend::RewriteObjC; break; 1728 case OPT_rewrite_test: 1729 Opts.ProgramAction = frontend::RewriteTest; break; 1730 case OPT_analyze: 1731 Opts.ProgramAction = frontend::RunAnalysis; break; 1732 case OPT_migrate: 1733 Opts.ProgramAction = frontend::MigrateSource; break; 1734 case OPT_Eonly: 1735 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1736 case OPT_print_dependency_directives_minimized_source: 1737 Opts.ProgramAction = 1738 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1739 break; 1740 } 1741 } 1742 1743 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1744 Opts.Plugins.emplace_back(A->getValue(0)); 1745 Opts.ProgramAction = frontend::PluginAction; 1746 Opts.ActionName = A->getValue(); 1747 } 1748 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1749 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1750 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1751 1752 for (const std::string &Arg : 1753 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1754 std::string BlockName; 1755 unsigned MajorVersion; 1756 unsigned MinorVersion; 1757 bool Hashed; 1758 std::string UserInfo; 1759 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1760 MinorVersion, Hashed, UserInfo)) { 1761 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1762 1763 continue; 1764 } 1765 1766 // Add the testing module file extension. 1767 Opts.ModuleFileExtensions.push_back( 1768 std::make_shared<TestModuleFileExtension>( 1769 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1770 } 1771 1772 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1773 Opts.CodeCompletionAt = 1774 ParsedSourceLocation::FromString(A->getValue()); 1775 if (Opts.CodeCompletionAt.FileName.empty()) 1776 Diags.Report(diag::err_drv_invalid_value) 1777 << A->getAsString(Args) << A->getValue(); 1778 } 1779 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1780 1781 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1782 Opts.Plugins = Args.getAllArgValues(OPT_load); 1783 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1784 Opts.ShowHelp = Args.hasArg(OPT_help); 1785 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1786 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1787 Opts.PrintSupportedCPUs = Args.hasArg(OPT__print_supported_cpus); 1788 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1789 Opts.ShowVersion = Args.hasArg(OPT_version); 1790 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1791 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1792 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1793 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1794 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1795 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1796 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1797 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1798 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1799 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1800 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1801 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1802 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1803 // Only the -fmodule-file=<file> form. 1804 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1805 StringRef Val = A->getValue(); 1806 if (Val.find('=') == StringRef::npos) 1807 Opts.ModuleFiles.push_back(Val); 1808 } 1809 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1810 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1811 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1812 1813 Opts.CodeCompleteOpts.IncludeMacros 1814 = Args.hasArg(OPT_code_completion_macros); 1815 Opts.CodeCompleteOpts.IncludeCodePatterns 1816 = Args.hasArg(OPT_code_completion_patterns); 1817 Opts.CodeCompleteOpts.IncludeGlobals 1818 = !Args.hasArg(OPT_no_code_completion_globals); 1819 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1820 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1821 Opts.CodeCompleteOpts.IncludeBriefComments 1822 = Args.hasArg(OPT_code_completion_brief_comments); 1823 Opts.CodeCompleteOpts.IncludeFixIts 1824 = Args.hasArg(OPT_code_completion_with_fixits); 1825 1826 Opts.OverrideRecordLayoutsFile 1827 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1828 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple); 1829 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1830 1831 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1832 OPT_arcmt_modify, 1833 OPT_arcmt_migrate)) { 1834 switch (A->getOption().getID()) { 1835 default: 1836 llvm_unreachable("missed a case"); 1837 case OPT_arcmt_check: 1838 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1839 break; 1840 case OPT_arcmt_modify: 1841 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1842 break; 1843 case OPT_arcmt_migrate: 1844 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1845 break; 1846 } 1847 } 1848 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1849 Opts.ARCMTMigrateReportOut 1850 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1851 Opts.ARCMTMigrateEmitARCErrors 1852 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1853 1854 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1855 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1856 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1857 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1858 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1859 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1860 if (Args.hasArg(OPT_objcmt_migrate_property)) 1861 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1862 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1863 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1864 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1865 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1866 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1867 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1868 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1869 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1870 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1871 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1872 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1873 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1874 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1875 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1876 if (Args.hasArg(OPT_objcmt_atomic_property)) 1877 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1878 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1879 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1880 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1881 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1882 if (Args.hasArg(OPT_objcmt_migrate_all)) 1883 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1884 1885 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1886 1887 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1888 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1889 Diags.Report(diag::err_drv_argument_not_allowed_with) 1890 << "ARC migration" << "ObjC migration"; 1891 } 1892 1893 InputKind DashX(InputKind::Unknown); 1894 if (const Arg *A = Args.getLastArg(OPT_x)) { 1895 StringRef XValue = A->getValue(); 1896 1897 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1898 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1899 bool Preprocessed = XValue.consume_back("-cpp-output"); 1900 bool ModuleMap = XValue.consume_back("-module-map"); 1901 IsHeaderFile = 1902 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1903 1904 // Principal languages. 1905 DashX = llvm::StringSwitch<InputKind>(XValue) 1906 .Case("c", InputKind::C) 1907 .Case("cl", InputKind::OpenCL) 1908 .Case("cuda", InputKind::CUDA) 1909 .Case("hip", InputKind::HIP) 1910 .Case("c++", InputKind::CXX) 1911 .Case("objective-c", InputKind::ObjC) 1912 .Case("objective-c++", InputKind::ObjCXX) 1913 .Case("renderscript", InputKind::RenderScript) 1914 .Default(InputKind::Unknown); 1915 1916 // "objc[++]-cpp-output" is an acceptable synonym for 1917 // "objective-c[++]-cpp-output". 1918 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1919 DashX = llvm::StringSwitch<InputKind>(XValue) 1920 .Case("objc", InputKind::ObjC) 1921 .Case("objc++", InputKind::ObjCXX) 1922 .Default(InputKind::Unknown); 1923 1924 // Some special cases cannot be combined with suffixes. 1925 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1926 DashX = llvm::StringSwitch<InputKind>(XValue) 1927 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1928 .Case("assembler-with-cpp", InputKind::Asm) 1929 .Cases("ast", "pcm", 1930 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1931 .Case("ir", InputKind::LLVM_IR) 1932 .Default(InputKind::Unknown); 1933 1934 if (DashX.isUnknown()) 1935 Diags.Report(diag::err_drv_invalid_value) 1936 << A->getAsString(Args) << A->getValue(); 1937 1938 if (Preprocessed) 1939 DashX = DashX.getPreprocessed(); 1940 if (ModuleMap) 1941 DashX = DashX.withFormat(InputKind::ModuleMap); 1942 } 1943 1944 // '-' is the default input if none is given. 1945 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1946 Opts.Inputs.clear(); 1947 if (Inputs.empty()) 1948 Inputs.push_back("-"); 1949 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1950 InputKind IK = DashX; 1951 if (IK.isUnknown()) { 1952 IK = FrontendOptions::getInputKindForExtension( 1953 StringRef(Inputs[i]).rsplit('.').second); 1954 // FIXME: Warn on this? 1955 if (IK.isUnknown()) 1956 IK = InputKind::C; 1957 // FIXME: Remove this hack. 1958 if (i == 0) 1959 DashX = IK; 1960 } 1961 1962 // The -emit-module action implicitly takes a module map. 1963 if (Opts.ProgramAction == frontend::GenerateModule && 1964 IK.getFormat() == InputKind::Source) 1965 IK = IK.withFormat(InputKind::ModuleMap); 1966 1967 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1968 } 1969 1970 return DashX; 1971 } 1972 1973 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1974 void *MainAddr) { 1975 std::string ClangExecutable = 1976 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1977 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 1978 } 1979 1980 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1981 const std::string &WorkingDir) { 1982 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1983 Opts.Verbose = Args.hasArg(OPT_v); 1984 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1985 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1986 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1987 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1988 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1989 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1990 1991 // Canonicalize -fmodules-cache-path before storing it. 1992 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1993 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1994 if (WorkingDir.empty()) 1995 llvm::sys::fs::make_absolute(P); 1996 else 1997 llvm::sys::fs::make_absolute(WorkingDir, P); 1998 } 1999 llvm::sys::path::remove_dots(P); 2000 Opts.ModuleCachePath = P.str(); 2001 2002 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 2003 // Only the -fmodule-file=<name>=<file> form. 2004 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2005 StringRef Val = A->getValue(); 2006 if (Val.find('=') != StringRef::npos) 2007 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 2008 } 2009 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2010 Opts.AddPrebuiltModulePath(A->getValue()); 2011 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2012 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2013 Opts.ModulesValidateDiagnosticOptions = 2014 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2015 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2016 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2017 Opts.ModuleCachePruneInterval = 2018 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2019 Opts.ModuleCachePruneAfter = 2020 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2021 Opts.ModulesValidateOncePerBuildSession = 2022 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2023 Opts.BuildSessionTimestamp = 2024 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2025 Opts.ModulesValidateSystemHeaders = 2026 Args.hasArg(OPT_fmodules_validate_system_headers); 2027 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2028 Opts.ModuleFormat = A->getValue(); 2029 2030 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2031 StringRef MacroDef = A->getValue(); 2032 Opts.ModulesIgnoreMacros.insert( 2033 llvm::CachedHashString(MacroDef.split('=').first)); 2034 } 2035 2036 // Add -I..., -F..., and -index-header-map options in order. 2037 bool IsIndexHeaderMap = false; 2038 bool IsSysrootSpecified = 2039 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2040 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2041 if (A->getOption().matches(OPT_index_header_map)) { 2042 // -index-header-map applies to the next -I or -F. 2043 IsIndexHeaderMap = true; 2044 continue; 2045 } 2046 2047 frontend::IncludeDirGroup Group = 2048 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2049 2050 bool IsFramework = A->getOption().matches(OPT_F); 2051 std::string Path = A->getValue(); 2052 2053 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2054 SmallString<32> Buffer; 2055 llvm::sys::path::append(Buffer, Opts.Sysroot, 2056 llvm::StringRef(A->getValue()).substr(1)); 2057 Path = Buffer.str(); 2058 } 2059 2060 Opts.AddPath(Path, Group, IsFramework, 2061 /*IgnoreSysroot*/ true); 2062 IsIndexHeaderMap = false; 2063 } 2064 2065 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2066 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2067 for (const auto *A : 2068 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2069 if (A->getOption().matches(OPT_iprefix)) 2070 Prefix = A->getValue(); 2071 else if (A->getOption().matches(OPT_iwithprefix)) 2072 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2073 else 2074 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2075 } 2076 2077 for (const auto *A : Args.filtered(OPT_idirafter)) 2078 Opts.AddPath(A->getValue(), frontend::After, false, true); 2079 for (const auto *A : Args.filtered(OPT_iquote)) 2080 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2081 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2082 Opts.AddPath(A->getValue(), frontend::System, false, 2083 !A->getOption().matches(OPT_iwithsysroot)); 2084 for (const auto *A : Args.filtered(OPT_iframework)) 2085 Opts.AddPath(A->getValue(), frontend::System, true, true); 2086 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2087 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2088 /*IgnoreSysRoot=*/false); 2089 2090 // Add the paths for the various language specific isystem flags. 2091 for (const auto *A : Args.filtered(OPT_c_isystem)) 2092 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2093 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2094 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2095 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2096 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2097 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2098 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2099 2100 // Add the internal paths from a driver that detects standard include paths. 2101 for (const auto *A : 2102 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2103 frontend::IncludeDirGroup Group = frontend::System; 2104 if (A->getOption().matches(OPT_internal_externc_isystem)) 2105 Group = frontend::ExternCSystem; 2106 Opts.AddPath(A->getValue(), Group, false, true); 2107 } 2108 2109 // Add the path prefixes which are implicitly treated as being system headers. 2110 for (const auto *A : 2111 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2112 Opts.AddSystemHeaderPrefix( 2113 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2114 2115 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2116 Opts.AddVFSOverlayFile(A->getValue()); 2117 } 2118 2119 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2120 const llvm::Triple &T, 2121 PreprocessorOptions &PPOpts, 2122 LangStandard::Kind LangStd) { 2123 // Set some properties which depend solely on the input kind; it would be nice 2124 // to move these to the language standard, and have the driver resolve the 2125 // input kind + language standard. 2126 // 2127 // FIXME: Perhaps a better model would be for a single source file to have 2128 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2129 // simultaneously active? 2130 if (IK.getLanguage() == InputKind::Asm) { 2131 Opts.AsmPreprocessor = 1; 2132 } else if (IK.isObjectiveC()) { 2133 Opts.ObjC = 1; 2134 } 2135 2136 if (LangStd == LangStandard::lang_unspecified) { 2137 // Based on the base language, pick one. 2138 switch (IK.getLanguage()) { 2139 case InputKind::Unknown: 2140 case InputKind::LLVM_IR: 2141 llvm_unreachable("Invalid input kind!"); 2142 case InputKind::OpenCL: 2143 LangStd = LangStandard::lang_opencl10; 2144 break; 2145 case InputKind::CUDA: 2146 LangStd = LangStandard::lang_cuda; 2147 break; 2148 case InputKind::Asm: 2149 case InputKind::C: 2150 #if defined(CLANG_DEFAULT_STD_C) 2151 LangStd = CLANG_DEFAULT_STD_C; 2152 #else 2153 // The PS4 uses C99 as the default C standard. 2154 if (T.isPS4()) 2155 LangStd = LangStandard::lang_gnu99; 2156 else 2157 LangStd = LangStandard::lang_gnu11; 2158 #endif 2159 break; 2160 case InputKind::ObjC: 2161 #if defined(CLANG_DEFAULT_STD_C) 2162 LangStd = CLANG_DEFAULT_STD_C; 2163 #else 2164 LangStd = LangStandard::lang_gnu11; 2165 #endif 2166 break; 2167 case InputKind::CXX: 2168 case InputKind::ObjCXX: 2169 #if defined(CLANG_DEFAULT_STD_CXX) 2170 LangStd = CLANG_DEFAULT_STD_CXX; 2171 #else 2172 LangStd = LangStandard::lang_gnucxx14; 2173 #endif 2174 break; 2175 case InputKind::RenderScript: 2176 LangStd = LangStandard::lang_c99; 2177 break; 2178 case InputKind::HIP: 2179 LangStd = LangStandard::lang_hip; 2180 break; 2181 } 2182 } 2183 2184 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2185 Opts.LineComment = Std.hasLineComments(); 2186 Opts.C99 = Std.isC99(); 2187 Opts.C11 = Std.isC11(); 2188 Opts.C17 = Std.isC17(); 2189 Opts.C2x = Std.isC2x(); 2190 Opts.CPlusPlus = Std.isCPlusPlus(); 2191 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2192 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2193 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2194 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2195 Opts.Digraphs = Std.hasDigraphs(); 2196 Opts.GNUMode = Std.isGNUMode(); 2197 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2198 Opts.HexFloats = Std.hasHexFloats(); 2199 Opts.ImplicitInt = Std.hasImplicitInt(); 2200 2201 // Set OpenCL Version. 2202 Opts.OpenCL = Std.isOpenCL(); 2203 if (LangStd == LangStandard::lang_opencl10) 2204 Opts.OpenCLVersion = 100; 2205 else if (LangStd == LangStandard::lang_opencl11) 2206 Opts.OpenCLVersion = 110; 2207 else if (LangStd == LangStandard::lang_opencl12) 2208 Opts.OpenCLVersion = 120; 2209 else if (LangStd == LangStandard::lang_opencl20) 2210 Opts.OpenCLVersion = 200; 2211 else if (LangStd == LangStandard::lang_openclcpp) 2212 Opts.OpenCLCPlusPlusVersion = 100; 2213 2214 // OpenCL has some additional defaults. 2215 if (Opts.OpenCL) { 2216 Opts.AltiVec = 0; 2217 Opts.ZVector = 0; 2218 Opts.LaxVectorConversions = 0; 2219 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2220 Opts.NativeHalfType = 1; 2221 Opts.NativeHalfArgsAndReturns = 1; 2222 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2223 2224 // Include default header file for OpenCL. 2225 if (Opts.IncludeDefaultHeader) { 2226 if (Opts.DeclareOpenCLBuiltins) { 2227 // Only include base header file for builtin types and constants. 2228 PPOpts.Includes.push_back("opencl-c-base.h"); 2229 } else { 2230 PPOpts.Includes.push_back("opencl-c.h"); 2231 } 2232 } 2233 } 2234 2235 Opts.HIP = IK.getLanguage() == InputKind::HIP; 2236 Opts.CUDA = IK.getLanguage() == InputKind::CUDA || Opts.HIP; 2237 if (Opts.CUDA) 2238 // Set default FP_CONTRACT to FAST. 2239 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2240 2241 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 2242 if (Opts.RenderScript) { 2243 Opts.NativeHalfType = 1; 2244 Opts.NativeHalfArgsAndReturns = 1; 2245 } 2246 2247 // OpenCL and C++ both have bool, true, false keywords. 2248 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2249 2250 // OpenCL has half keyword 2251 Opts.Half = Opts.OpenCL; 2252 2253 // C++ has wchar_t keyword. 2254 Opts.WChar = Opts.CPlusPlus; 2255 2256 Opts.GNUKeywords = Opts.GNUMode; 2257 Opts.CXXOperatorNames = Opts.CPlusPlus; 2258 2259 Opts.AlignedAllocation = Opts.CPlusPlus17; 2260 2261 Opts.DollarIdents = !Opts.AsmPreprocessor; 2262 2263 // Enable [[]] attributes in C++11 and C2x by default. 2264 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2265 } 2266 2267 /// Attempt to parse a visibility value out of the given argument. 2268 static Visibility parseVisibility(Arg *arg, ArgList &args, 2269 DiagnosticsEngine &diags) { 2270 StringRef value = arg->getValue(); 2271 if (value == "default") { 2272 return DefaultVisibility; 2273 } else if (value == "hidden" || value == "internal") { 2274 return HiddenVisibility; 2275 } else if (value == "protected") { 2276 // FIXME: diagnose if target does not support protected visibility 2277 return ProtectedVisibility; 2278 } 2279 2280 diags.Report(diag::err_drv_invalid_value) 2281 << arg->getAsString(args) << value; 2282 return DefaultVisibility; 2283 } 2284 2285 /// Check if input file kind and language standard are compatible. 2286 static bool IsInputCompatibleWithStandard(InputKind IK, 2287 const LangStandard &S) { 2288 switch (IK.getLanguage()) { 2289 case InputKind::Unknown: 2290 case InputKind::LLVM_IR: 2291 llvm_unreachable("should not parse language flags for this input"); 2292 2293 case InputKind::C: 2294 case InputKind::ObjC: 2295 case InputKind::RenderScript: 2296 return S.getLanguage() == InputKind::C; 2297 2298 case InputKind::OpenCL: 2299 return S.getLanguage() == InputKind::OpenCL; 2300 2301 case InputKind::CXX: 2302 case InputKind::ObjCXX: 2303 return S.getLanguage() == InputKind::CXX; 2304 2305 case InputKind::CUDA: 2306 // FIXME: What -std= values should be permitted for CUDA compilations? 2307 return S.getLanguage() == InputKind::CUDA || 2308 S.getLanguage() == InputKind::CXX; 2309 2310 case InputKind::HIP: 2311 return S.getLanguage() == InputKind::CXX || 2312 S.getLanguage() == InputKind::HIP; 2313 2314 case InputKind::Asm: 2315 // Accept (and ignore) all -std= values. 2316 // FIXME: The -std= value is not ignored; it affects the tokenization 2317 // and preprocessing rules if we're preprocessing this asm input. 2318 return true; 2319 } 2320 2321 llvm_unreachable("unexpected input language"); 2322 } 2323 2324 /// Get language name for given input kind. 2325 static const StringRef GetInputKindName(InputKind IK) { 2326 switch (IK.getLanguage()) { 2327 case InputKind::C: 2328 return "C"; 2329 case InputKind::ObjC: 2330 return "Objective-C"; 2331 case InputKind::CXX: 2332 return "C++"; 2333 case InputKind::ObjCXX: 2334 return "Objective-C++"; 2335 case InputKind::OpenCL: 2336 return "OpenCL"; 2337 case InputKind::CUDA: 2338 return "CUDA"; 2339 case InputKind::RenderScript: 2340 return "RenderScript"; 2341 case InputKind::HIP: 2342 return "HIP"; 2343 2344 case InputKind::Asm: 2345 return "Asm"; 2346 case InputKind::LLVM_IR: 2347 return "LLVM IR"; 2348 2349 case InputKind::Unknown: 2350 break; 2351 } 2352 llvm_unreachable("unknown input language"); 2353 } 2354 2355 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2356 const TargetOptions &TargetOpts, 2357 PreprocessorOptions &PPOpts, 2358 DiagnosticsEngine &Diags) { 2359 // FIXME: Cleanup per-file based stuff. 2360 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2361 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2362 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2363 #define LANGSTANDARD(id, name, lang, desc, features) \ 2364 .Case(name, LangStandard::lang_##id) 2365 #define LANGSTANDARD_ALIAS(id, alias) \ 2366 .Case(alias, LangStandard::lang_##id) 2367 #include "clang/Frontend/LangStandards.def" 2368 .Default(LangStandard::lang_unspecified); 2369 if (LangStd == LangStandard::lang_unspecified) { 2370 Diags.Report(diag::err_drv_invalid_value) 2371 << A->getAsString(Args) << A->getValue(); 2372 // Report supported standards with short description. 2373 for (unsigned KindValue = 0; 2374 KindValue != LangStandard::lang_unspecified; 2375 ++KindValue) { 2376 const LangStandard &Std = LangStandard::getLangStandardForKind( 2377 static_cast<LangStandard::Kind>(KindValue)); 2378 if (IsInputCompatibleWithStandard(IK, Std)) { 2379 auto Diag = Diags.Report(diag::note_drv_use_standard); 2380 Diag << Std.getName() << Std.getDescription(); 2381 unsigned NumAliases = 0; 2382 #define LANGSTANDARD(id, name, lang, desc, features) 2383 #define LANGSTANDARD_ALIAS(id, alias) \ 2384 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2385 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2386 #include "clang/Frontend/LangStandards.def" 2387 Diag << NumAliases; 2388 #define LANGSTANDARD(id, name, lang, desc, features) 2389 #define LANGSTANDARD_ALIAS(id, alias) \ 2390 if (KindValue == LangStandard::lang_##id) Diag << alias; 2391 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2392 #include "clang/Frontend/LangStandards.def" 2393 } 2394 } 2395 } else { 2396 // Valid standard, check to make sure language and standard are 2397 // compatible. 2398 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2399 if (!IsInputCompatibleWithStandard(IK, Std)) { 2400 Diags.Report(diag::err_drv_argument_not_allowed_with) 2401 << A->getAsString(Args) << GetInputKindName(IK); 2402 } 2403 } 2404 } 2405 2406 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2407 Opts.DllExportInlines = false; 2408 2409 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2410 StringRef Name = A->getValue(); 2411 if (Name == "full" || Name == "branch") { 2412 Opts.CFProtectionBranch = 1; 2413 } 2414 } 2415 // -cl-std only applies for OpenCL language standards. 2416 // Override the -std option in this case. 2417 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2418 LangStandard::Kind OpenCLLangStd 2419 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2420 .Cases("cl", "CL", LangStandard::lang_opencl10) 2421 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2422 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2423 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2424 .Case("c++", LangStandard::lang_openclcpp) 2425 .Default(LangStandard::lang_unspecified); 2426 2427 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2428 Diags.Report(diag::err_drv_invalid_value) 2429 << A->getAsString(Args) << A->getValue(); 2430 } 2431 else 2432 LangStd = OpenCLLangStd; 2433 } 2434 2435 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2436 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2437 2438 llvm::Triple T(TargetOpts.Triple); 2439 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2440 2441 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2442 // This option should be deprecated for CL > 1.0 because 2443 // this option was added for compatibility with OpenCL 1.0. 2444 if (Args.getLastArg(OPT_cl_strict_aliasing) 2445 && Opts.OpenCLVersion > 100) { 2446 Diags.Report(diag::warn_option_invalid_ocl_version) 2447 << Opts.getOpenCLVersionTuple().getAsString() 2448 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2449 } 2450 2451 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2452 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2453 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2454 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2455 // name, as it doesn't seem a useful distinction. 2456 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2457 Opts.GNUKeywords); 2458 2459 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2460 2461 if (Args.hasArg(OPT_fno_operator_names)) 2462 Opts.CXXOperatorNames = 0; 2463 2464 if (Args.hasArg(OPT_fcuda_is_device)) 2465 Opts.CUDAIsDevice = 1; 2466 2467 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2468 Opts.CUDAAllowVariadicFunctions = 1; 2469 2470 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2471 Opts.CUDAHostDeviceConstexpr = 0; 2472 2473 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2474 Opts.CUDADeviceApproxTranscendentals = 1; 2475 2476 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2477 2478 if (Opts.ObjC) { 2479 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2480 StringRef value = arg->getValue(); 2481 if (Opts.ObjCRuntime.tryParse(value)) 2482 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2483 } 2484 2485 if (Args.hasArg(OPT_fobjc_gc_only)) 2486 Opts.setGC(LangOptions::GCOnly); 2487 else if (Args.hasArg(OPT_fobjc_gc)) 2488 Opts.setGC(LangOptions::HybridGC); 2489 else if (Args.hasArg(OPT_fobjc_arc)) { 2490 Opts.ObjCAutoRefCount = 1; 2491 if (!Opts.ObjCRuntime.allowsARC()) 2492 Diags.Report(diag::err_arc_unsupported_on_runtime); 2493 } 2494 2495 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2496 // whether the feature is actually enabled. This is predominantly 2497 // determined by -fobjc-runtime, but we allow it to be overridden 2498 // from the command line for testing purposes. 2499 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2500 Opts.ObjCWeakRuntime = 1; 2501 else 2502 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2503 2504 // ObjCWeak determines whether __weak is actually enabled. 2505 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2506 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2507 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2508 assert(!Opts.ObjCWeak); 2509 } else if (Opts.getGC() != LangOptions::NonGC) { 2510 Diags.Report(diag::err_objc_weak_with_gc); 2511 } else if (!Opts.ObjCWeakRuntime) { 2512 Diags.Report(diag::err_objc_weak_unsupported); 2513 } else { 2514 Opts.ObjCWeak = 1; 2515 } 2516 } else if (Opts.ObjCAutoRefCount) { 2517 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2518 } 2519 2520 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2521 Opts.ObjCInferRelatedResultType = 0; 2522 2523 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2524 Opts.ObjCSubscriptingLegacyRuntime = 2525 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2526 } 2527 2528 if (Args.hasArg(OPT_fgnu89_inline)) { 2529 if (Opts.CPlusPlus) 2530 Diags.Report(diag::err_drv_argument_not_allowed_with) 2531 << "-fgnu89-inline" << GetInputKindName(IK); 2532 else 2533 Opts.GNUInline = 1; 2534 } 2535 2536 if (Args.hasArg(OPT_fapple_kext)) { 2537 if (!Opts.CPlusPlus) 2538 Diags.Report(diag::warn_c_kext); 2539 else 2540 Opts.AppleKext = 1; 2541 } 2542 2543 if (Args.hasArg(OPT_print_ivar_layout)) 2544 Opts.ObjCGCBitmapPrint = 1; 2545 2546 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2547 Opts.NoConstantCFStrings = 1; 2548 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2549 Opts.CFRuntime = 2550 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2551 .Cases("unspecified", "standalone", "objc", 2552 LangOptions::CoreFoundationABI::ObjectiveC) 2553 .Cases("swift", "swift-5.0", 2554 LangOptions::CoreFoundationABI::Swift5_0) 2555 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2556 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2557 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2558 2559 if (Args.hasArg(OPT_fzvector)) 2560 Opts.ZVector = 1; 2561 2562 if (Args.hasArg(OPT_pthread)) 2563 Opts.POSIXThreads = 1; 2564 2565 // The value-visibility mode defaults to "default". 2566 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2567 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2568 } else { 2569 Opts.setValueVisibilityMode(DefaultVisibility); 2570 } 2571 2572 // The type-visibility mode defaults to the value-visibility mode. 2573 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2574 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2575 } else { 2576 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2577 } 2578 2579 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2580 Opts.InlineVisibilityHidden = 1; 2581 2582 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2583 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2584 2585 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2586 Opts.SetVisibilityForExternDecls = 1; 2587 2588 if (Args.hasArg(OPT_ftrapv)) { 2589 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2590 // Set the handler, if one is specified. 2591 Opts.OverflowHandler = 2592 Args.getLastArgValue(OPT_ftrapv_handler); 2593 } 2594 else if (Args.hasArg(OPT_fwrapv)) 2595 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2596 2597 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2598 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2599 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2600 Opts.MSCompatibilityVersion = 0; 2601 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2602 VersionTuple VT; 2603 if (VT.tryParse(A->getValue())) 2604 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2605 << A->getValue(); 2606 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2607 VT.getMinor().getValueOr(0) * 100000 + 2608 VT.getSubminor().getValueOr(0); 2609 } 2610 2611 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2612 // is specified, or -std is set to a conforming mode. 2613 // Trigraphs are disabled by default in c++1z onwards. 2614 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2615 Opts.Trigraphs = 2616 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2617 2618 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2619 OPT_fno_dollars_in_identifiers, 2620 Opts.DollarIdents); 2621 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2622 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2623 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2624 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2625 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2626 Opts.ConstStrings); 2627 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2628 Opts.LaxVectorConversions = 0; 2629 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2630 Opts.ThreadsafeStatics = 0; 2631 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2632 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2633 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2634 2635 // -ffixed-point 2636 Opts.FixedPoint = 2637 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2638 !Opts.CPlusPlus; 2639 Opts.PaddingOnUnsignedFixedPoint = 2640 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2641 OPT_fno_padding_on_unsigned_fixed_point, 2642 /*Default=*/false) && 2643 Opts.FixedPoint; 2644 2645 // Handle exception personalities 2646 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2647 options::OPT_fseh_exceptions, 2648 options::OPT_fdwarf_exceptions); 2649 if (A) { 2650 const Option &Opt = A->getOption(); 2651 llvm::Triple T(TargetOpts.Triple); 2652 if (T.isWindowsMSVCEnvironment()) 2653 Diags.Report(diag::err_fe_invalid_exception_model) 2654 << Opt.getName() << T.str(); 2655 2656 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2657 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2658 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2659 } 2660 2661 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2662 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2663 2664 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2665 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2666 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2667 && Opts.OpenCLVersion == 200); 2668 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2669 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2670 2671 Opts.DoubleSquareBracketAttributes = 2672 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2673 OPT_fno_double_square_bracket_attributes, 2674 Opts.DoubleSquareBracketAttributes); 2675 2676 Opts.CPlusPlusModules = Opts.CPlusPlus2a; 2677 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2678 Opts.Modules = 2679 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2680 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2681 Opts.ModulesDeclUse = 2682 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2683 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2684 // enter a different module (eg, when building a header unit). 2685 Opts.ModulesLocalVisibility = 2686 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2687 Opts.CPlusPlusModules; 2688 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2689 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2690 Opts.ModulesSearchAll = Opts.Modules && 2691 !Args.hasArg(OPT_fno_modules_search_all) && 2692 Args.hasArg(OPT_fmodules_search_all); 2693 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2694 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2695 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2696 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2697 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2698 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2699 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2700 .Case("char", 1) 2701 .Case("short", 2) 2702 .Case("int", 4) 2703 .Default(0); 2704 if (Opts.WCharSize == 0) 2705 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2706 } 2707 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2708 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2709 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2710 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2711 if (!Opts.NoBuiltin) 2712 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2713 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2714 Opts.RelaxedTemplateTemplateArgs = 2715 Args.hasArg(OPT_frelaxed_template_template_args); 2716 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2717 Opts.AlignedAllocation = 2718 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2719 Opts.AlignedAllocation); 2720 Opts.AlignedAllocationUnavailable = 2721 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2722 Opts.NewAlignOverride = 2723 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2724 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2725 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2726 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2727 << A->getValue(); 2728 Opts.NewAlignOverride = 0; 2729 } 2730 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2731 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2732 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2733 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2734 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2735 Opts.InstantiationDepth = 2736 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2737 Opts.ArrowDepth = 2738 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2739 Opts.ConstexprCallDepth = 2740 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2741 Opts.ConstexprStepLimit = 2742 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2743 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2744 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2745 Opts.NumLargeByValueCopy = 2746 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2747 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2748 Opts.ObjCConstantStringClass = 2749 Args.getLastArgValue(OPT_fconstant_string_class); 2750 Opts.ObjCDefaultSynthProperties = 2751 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2752 Opts.EncodeExtendedBlockSig = 2753 Args.hasArg(OPT_fencode_extended_block_signature); 2754 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2755 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2756 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2757 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2758 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2759 Opts.ROPI = Args.hasArg(OPT_fropi); 2760 Opts.RWPI = Args.hasArg(OPT_frwpi); 2761 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2762 Opts.Static = Args.hasArg(OPT_static_define); 2763 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2764 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2765 || Args.hasArg(OPT_fdump_record_layouts); 2766 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2767 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2768 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2769 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2770 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2771 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2772 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2773 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2774 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2775 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2776 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2777 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2778 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ); 2779 Opts.CurrentModule = Opts.ModuleName; 2780 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2781 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2782 llvm::sort(Opts.ModuleFeatures); 2783 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2784 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2785 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2786 // is enabled. 2787 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2788 | Opts.NativeHalfArgsAndReturns; 2789 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2790 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2791 2792 // __declspec is enabled by default for the PS4 by the driver, and also 2793 // enabled for Microsoft Extensions or Borland Extensions, here. 2794 // 2795 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2796 // CUDA extension. However, it is required for supporting 2797 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2798 // been rewritten in terms of something more generic, remove the Opts.CUDA 2799 // term here. 2800 Opts.DeclSpecKeyword = 2801 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2802 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2803 2804 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2805 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2806 .Case("target", LangOptions::ASMM_Target) 2807 .Case("no", LangOptions::ASMM_Off) 2808 .Case("yes", LangOptions::ASMM_On) 2809 .Default(255)) { 2810 default: 2811 Diags.Report(diag::err_drv_invalid_value) 2812 << "-faddress-space-map-mangling=" << A->getValue(); 2813 break; 2814 case LangOptions::ASMM_Target: 2815 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2816 break; 2817 case LangOptions::ASMM_On: 2818 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2819 break; 2820 case LangOptions::ASMM_Off: 2821 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2822 break; 2823 } 2824 } 2825 2826 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2827 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2828 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2829 A->getValue()) 2830 .Case("single", 2831 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2832 .Case("multiple", 2833 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2834 .Case("virtual", 2835 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2836 .Default(LangOptions::PPTMK_BestCase); 2837 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2838 Diags.Report(diag::err_drv_invalid_value) 2839 << "-fms-memptr-rep=" << A->getValue(); 2840 2841 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2842 } 2843 2844 // Check for MS default calling conventions being specified. 2845 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2846 LangOptions::DefaultCallingConvention DefaultCC = 2847 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2848 .Case("cdecl", LangOptions::DCC_CDecl) 2849 .Case("fastcall", LangOptions::DCC_FastCall) 2850 .Case("stdcall", LangOptions::DCC_StdCall) 2851 .Case("vectorcall", LangOptions::DCC_VectorCall) 2852 .Case("regcall", LangOptions::DCC_RegCall) 2853 .Default(LangOptions::DCC_None); 2854 if (DefaultCC == LangOptions::DCC_None) 2855 Diags.Report(diag::err_drv_invalid_value) 2856 << "-fdefault-calling-conv=" << A->getValue(); 2857 2858 llvm::Triple T(TargetOpts.Triple); 2859 llvm::Triple::ArchType Arch = T.getArch(); 2860 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2861 DefaultCC == LangOptions::DCC_StdCall) && 2862 Arch != llvm::Triple::x86; 2863 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2864 DefaultCC == LangOptions::DCC_RegCall) && 2865 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2866 if (emitError) 2867 Diags.Report(diag::err_drv_argument_not_allowed_with) 2868 << A->getSpelling() << T.getTriple(); 2869 else 2870 Opts.setDefaultCallingConv(DefaultCC); 2871 } 2872 2873 // -mrtd option 2874 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2875 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2876 Diags.Report(diag::err_drv_argument_not_allowed_with) 2877 << A->getSpelling() << "-fdefault-calling-conv"; 2878 else { 2879 llvm::Triple T(TargetOpts.Triple); 2880 if (T.getArch() != llvm::Triple::x86) 2881 Diags.Report(diag::err_drv_argument_not_allowed_with) 2882 << A->getSpelling() << T.getTriple(); 2883 else 2884 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2885 } 2886 } 2887 2888 // Check if -fopenmp is specified. 2889 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2890 // Check if -fopenmp-simd is specified. 2891 bool IsSimdSpecified = 2892 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2893 /*Default=*/false); 2894 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2895 Opts.OpenMPUseTLS = 2896 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2897 Opts.OpenMPIsDevice = 2898 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2899 bool IsTargetSpecified = 2900 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2901 2902 if (Opts.OpenMP || Opts.OpenMPSimd) { 2903 if (int Version = getLastArgIntValue( 2904 Args, OPT_fopenmp_version_EQ, 2905 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 2906 Opts.OpenMP = Version; 2907 else if (IsSimdSpecified || IsTargetSpecified) 2908 Opts.OpenMP = 45; 2909 // Provide diagnostic when a given target is not expected to be an OpenMP 2910 // device or host. 2911 if (!Opts.OpenMPIsDevice) { 2912 switch (T.getArch()) { 2913 default: 2914 break; 2915 // Add unsupported host targets here: 2916 case llvm::Triple::nvptx: 2917 case llvm::Triple::nvptx64: 2918 Diags.Report(diag::err_drv_omp_host_target_not_supported) 2919 << TargetOpts.Triple; 2920 break; 2921 } 2922 } 2923 } 2924 2925 // Set the flag to prevent the implementation from emitting device exception 2926 // handling code for those requiring so. 2927 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 2928 Opts.Exceptions = 0; 2929 Opts.CXXExceptions = 0; 2930 } 2931 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2932 Opts.OpenMPCUDANumSMs = 2933 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 2934 Opts.OpenMPCUDANumSMs, Diags); 2935 Opts.OpenMPCUDABlocksPerSM = 2936 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 2937 Opts.OpenMPCUDABlocksPerSM, Diags); 2938 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 2939 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 2940 Opts.OpenMPCUDAReductionBufNum, Diags); 2941 } 2942 2943 // Prevent auto-widening the representation of loop counters during an 2944 // OpenMP collapse clause. 2945 Opts.OpenMPOptimisticCollapse = 2946 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 2947 2948 // Get the OpenMP target triples if any. 2949 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2950 2951 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2952 llvm::Triple TT(A->getValue(i)); 2953 2954 if (TT.getArch() == llvm::Triple::UnknownArch || 2955 !(TT.getArch() == llvm::Triple::ppc || 2956 TT.getArch() == llvm::Triple::ppc64 || 2957 TT.getArch() == llvm::Triple::ppc64le || 2958 TT.getArch() == llvm::Triple::nvptx || 2959 TT.getArch() == llvm::Triple::nvptx64 || 2960 TT.getArch() == llvm::Triple::x86 || 2961 TT.getArch() == llvm::Triple::x86_64)) 2962 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 2963 else 2964 Opts.OMPTargetTriples.push_back(TT); 2965 } 2966 } 2967 2968 // Get OpenMP host file path if any and report if a non existent file is 2969 // found 2970 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2971 Opts.OMPHostIRFile = A->getValue(); 2972 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2973 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 2974 << Opts.OMPHostIRFile; 2975 } 2976 2977 Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device); 2978 2979 // Set CUDA mode for OpenMP target NVPTX if specified in options 2980 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 2981 Args.hasArg(options::OPT_fopenmp_cuda_mode); 2982 2983 // Set CUDA mode for OpenMP target NVPTX if specified in options 2984 Opts.OpenMPCUDAForceFullRuntime = 2985 Opts.OpenMPIsDevice && T.isNVPTX() && 2986 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 2987 2988 // Record whether the __DEPRECATED define was requested. 2989 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2990 OPT_fno_deprecated_macro, 2991 Opts.Deprecated); 2992 2993 // FIXME: Eliminate this dependency. 2994 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2995 OptSize = getOptimizationLevelSize(Args); 2996 Opts.Optimize = Opt != 0; 2997 Opts.OptimizeSize = OptSize != 0; 2998 2999 // This is the __NO_INLINE__ define, which just depends on things like the 3000 // optimization level and -fno-inline, not actually whether the backend has 3001 // inlining enabled. 3002 Opts.NoInlineDefine = !Opts.Optimize; 3003 if (Arg *InlineArg = Args.getLastArg( 3004 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3005 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3006 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3007 Opts.NoInlineDefine = true; 3008 3009 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 3010 Args.hasArg(OPT_cl_fast_relaxed_math); 3011 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3012 Args.hasArg(OPT_cl_finite_math_only) || 3013 Args.hasArg(OPT_cl_fast_relaxed_math); 3014 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3015 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3016 Args.hasArg(OPT_cl_fast_relaxed_math); 3017 3018 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3019 StringRef Val = A->getValue(); 3020 if (Val == "fast") 3021 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 3022 else if (Val == "on") 3023 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 3024 else if (Val == "off") 3025 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 3026 else 3027 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3028 } 3029 3030 Opts.RetainCommentsFromSystemHeaders = 3031 Args.hasArg(OPT_fretain_comments_from_system_headers); 3032 3033 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3034 switch (SSP) { 3035 default: 3036 Diags.Report(diag::err_drv_invalid_value) 3037 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3038 break; 3039 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3040 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3041 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3042 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3043 } 3044 3045 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3046 StringRef Val = A->getValue(); 3047 if (Val == "uninitialized") 3048 Opts.setTrivialAutoVarInit( 3049 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3050 else if (Val == "zero") 3051 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3052 else if (Val == "pattern") 3053 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3054 else 3055 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3056 } 3057 3058 // Parse -fsanitize= arguments. 3059 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3060 Diags, Opts.Sanitize); 3061 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3062 Opts.SanitizeAddressFieldPadding = 3063 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3064 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3065 3066 // -fxray-instrument 3067 Opts.XRayInstrument = 3068 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 3069 3070 // -fxray-always-emit-customevents 3071 Opts.XRayAlwaysEmitCustomEvents = 3072 Args.hasFlag(OPT_fxray_always_emit_customevents, 3073 OPT_fnoxray_always_emit_customevents, false); 3074 3075 // -fxray-always-emit-typedevents 3076 Opts.XRayAlwaysEmitTypedEvents = 3077 Args.hasFlag(OPT_fxray_always_emit_typedevents, 3078 OPT_fnoxray_always_emit_customevents, false); 3079 3080 // -fxray-{always,never}-instrument= filenames. 3081 Opts.XRayAlwaysInstrumentFiles = 3082 Args.getAllArgValues(OPT_fxray_always_instrument); 3083 Opts.XRayNeverInstrumentFiles = 3084 Args.getAllArgValues(OPT_fxray_never_instrument); 3085 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3086 3087 // -fforce-emit-vtables 3088 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3089 3090 // -fallow-editor-placeholders 3091 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3092 3093 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3094 3095 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3096 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3097 3098 StringRef Ver = A->getValue(); 3099 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3100 unsigned Major, Minor = 0; 3101 3102 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3103 // y or y.0 (4 <= y <= current version). 3104 if (!VerParts.first.startswith("0") && 3105 !VerParts.first.getAsInteger(10, Major) && 3106 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3107 (Major == 3 ? VerParts.second.size() == 1 && 3108 !VerParts.second.getAsInteger(10, Minor) 3109 : VerParts.first.size() == Ver.size() || 3110 VerParts.second == "0")) { 3111 // Got a valid version number. 3112 if (Major == 3 && Minor <= 8) 3113 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3114 else if (Major <= 4) 3115 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3116 else if (Major <= 6) 3117 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3118 else if (Major <= 7) 3119 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3120 } else if (Ver != "latest") { 3121 Diags.Report(diag::err_drv_invalid_value) 3122 << A->getAsString(Args) << A->getValue(); 3123 } 3124 } 3125 3126 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3127 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3128 } 3129 3130 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3131 switch (Action) { 3132 case frontend::ASTDeclList: 3133 case frontend::ASTDump: 3134 case frontend::ASTPrint: 3135 case frontend::ASTView: 3136 case frontend::EmitAssembly: 3137 case frontend::EmitBC: 3138 case frontend::EmitHTML: 3139 case frontend::EmitLLVM: 3140 case frontend::EmitLLVMOnly: 3141 case frontend::EmitCodeGenOnly: 3142 case frontend::EmitObj: 3143 case frontend::FixIt: 3144 case frontend::GenerateModule: 3145 case frontend::GenerateModuleInterface: 3146 case frontend::GenerateHeaderModule: 3147 case frontend::GeneratePCH: 3148 case frontend::GenerateInterfaceYAMLExpV1: 3149 case frontend::GenerateInterfaceTBEExpV1: 3150 case frontend::ParseSyntaxOnly: 3151 case frontend::ModuleFileInfo: 3152 case frontend::VerifyPCH: 3153 case frontend::PluginAction: 3154 case frontend::RewriteObjC: 3155 case frontend::RewriteTest: 3156 case frontend::RunAnalysis: 3157 case frontend::TemplightDump: 3158 case frontend::MigrateSource: 3159 return false; 3160 3161 case frontend::DumpCompilerOptions: 3162 case frontend::DumpRawTokens: 3163 case frontend::DumpTokens: 3164 case frontend::InitOnly: 3165 case frontend::PrintPreamble: 3166 case frontend::PrintPreprocessedInput: 3167 case frontend::RewriteMacros: 3168 case frontend::RunPreprocessorOnly: 3169 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3170 return true; 3171 } 3172 llvm_unreachable("invalid frontend action"); 3173 } 3174 3175 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3176 DiagnosticsEngine &Diags, 3177 frontend::ActionKind Action) { 3178 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 3179 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3180 Args.hasArg(OPT_pch_through_hdrstop_use); 3181 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3182 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ); 3183 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3184 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3185 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3186 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3187 3188 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3189 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3190 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3191 3192 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3193 StringRef Value(A->getValue()); 3194 size_t Comma = Value.find(','); 3195 unsigned Bytes = 0; 3196 unsigned EndOfLine = 0; 3197 3198 if (Comma == StringRef::npos || 3199 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3200 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3201 Diags.Report(diag::err_drv_preamble_format); 3202 else { 3203 Opts.PrecompiledPreambleBytes.first = Bytes; 3204 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3205 } 3206 } 3207 3208 // Add the __CET__ macro if a CFProtection option is set. 3209 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3210 StringRef Name = A->getValue(); 3211 if (Name == "branch") 3212 Opts.addMacroDef("__CET__=1"); 3213 else if (Name == "return") 3214 Opts.addMacroDef("__CET__=2"); 3215 else if (Name == "full") 3216 Opts.addMacroDef("__CET__=3"); 3217 } 3218 3219 // Add macros from the command line. 3220 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3221 if (A->getOption().matches(OPT_D)) 3222 Opts.addMacroDef(A->getValue()); 3223 else 3224 Opts.addMacroUndef(A->getValue()); 3225 } 3226 3227 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3228 3229 // Add the ordered list of -includes. 3230 for (const auto *A : Args.filtered(OPT_include)) 3231 Opts.Includes.emplace_back(A->getValue()); 3232 3233 for (const auto *A : Args.filtered(OPT_chain_include)) 3234 Opts.ChainedIncludes.emplace_back(A->getValue()); 3235 3236 for (const auto *A : Args.filtered(OPT_remap_file)) { 3237 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3238 3239 if (Split.second.empty()) { 3240 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3241 continue; 3242 } 3243 3244 Opts.addRemappedFile(Split.first, Split.second); 3245 } 3246 3247 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3248 StringRef Name = A->getValue(); 3249 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3250 .Case("libc++", ARCXX_libcxx) 3251 .Case("libstdc++", ARCXX_libstdcxx) 3252 .Case("none", ARCXX_nolib) 3253 .Default(~0U); 3254 if (Library == ~0U) 3255 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3256 else 3257 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3258 } 3259 3260 // Always avoid lexing editor placeholders when we're just running the 3261 // preprocessor as we never want to emit the 3262 // "editor placeholder in source file" error in PP only mode. 3263 if (isStrictlyPreprocessorAction(Action)) 3264 Opts.LexEditorPlaceholders = false; 3265 } 3266 3267 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3268 ArgList &Args, 3269 frontend::ActionKind Action) { 3270 if (isStrictlyPreprocessorAction(Action)) 3271 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3272 else 3273 Opts.ShowCPP = 0; 3274 3275 Opts.ShowComments = Args.hasArg(OPT_C); 3276 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3277 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3278 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3279 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3280 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3281 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3282 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3283 } 3284 3285 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3286 DiagnosticsEngine &Diags) { 3287 Opts.CodeModel = getCodeModel(Args, Diags); 3288 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 3289 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3290 StringRef Value = A->getValue(); 3291 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3292 .Case("default", llvm::EABI::Default) 3293 .Case("4", llvm::EABI::EABI4) 3294 .Case("5", llvm::EABI::EABI5) 3295 .Case("gnu", llvm::EABI::GNU) 3296 .Default(llvm::EABI::Unknown); 3297 if (EABIVersion == llvm::EABI::Unknown) 3298 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3299 << Value; 3300 else 3301 Opts.EABIVersion = EABIVersion; 3302 } 3303 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 3304 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 3305 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3306 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 3307 Opts.Triple = Args.getLastArgValue(OPT_triple); 3308 // Use the default target triple if unspecified. 3309 if (Opts.Triple.empty()) 3310 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3311 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3312 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3313 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3314 Opts.NVPTXUseShortPointers = Args.hasFlag( 3315 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3316 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3317 llvm::VersionTuple Version; 3318 if (Version.tryParse(A->getValue())) 3319 Diags.Report(diag::err_drv_invalid_value) 3320 << A->getAsString(Args) << A->getValue(); 3321 else 3322 Opts.SDKVersion = Version; 3323 } 3324 } 3325 3326 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3327 const char *const *ArgBegin, 3328 const char *const *ArgEnd, 3329 DiagnosticsEngine &Diags) { 3330 bool Success = true; 3331 3332 // Parse the arguments. 3333 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 3334 const unsigned IncludedFlagsBitmask = options::CC1Option; 3335 unsigned MissingArgIndex, MissingArgCount; 3336 InputArgList Args = 3337 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 3338 MissingArgCount, IncludedFlagsBitmask); 3339 LangOptions &LangOpts = *Res.getLangOpts(); 3340 3341 // Check for missing argument error. 3342 if (MissingArgCount) { 3343 Diags.Report(diag::err_drv_missing_argument) 3344 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3345 Success = false; 3346 } 3347 3348 // Issue errors on unknown arguments. 3349 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3350 auto ArgString = A->getAsString(Args); 3351 std::string Nearest; 3352 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3353 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3354 else 3355 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3356 << ArgString << Nearest; 3357 Success = false; 3358 } 3359 3360 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3361 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3362 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3363 Success &= 3364 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3365 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3366 ParseCommentArgs(LangOpts.CommentOpts, Args); 3367 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3368 // FIXME: We shouldn't have to pass the DashX option around here 3369 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3370 LangOpts.IsHeaderFile); 3371 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3372 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3373 Res.getTargetOpts(), Res.getFrontendOpts()); 3374 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3375 Res.getFileSystemOpts().WorkingDir); 3376 llvm::Triple T(Res.getTargetOpts().Triple); 3377 if (DashX.getFormat() == InputKind::Precompiled || 3378 DashX.getLanguage() == InputKind::LLVM_IR) { 3379 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3380 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3381 // what the input type is. 3382 if (Args.hasArg(OPT_fobjc_arc)) 3383 LangOpts.ObjCAutoRefCount = 1; 3384 // PIClevel and PIELevel are needed during code generation and this should be 3385 // set regardless of the input type. 3386 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3387 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3388 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3389 Diags, LangOpts.Sanitize); 3390 } else { 3391 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3392 // FIXME: Should we really be calling this for an InputKind::Asm input? 3393 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3394 Res.getPreprocessorOpts(), Diags); 3395 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3396 LangOpts.ObjCExceptions = 1; 3397 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3398 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3399 // preprocessed input as we don't expect it to be used with -std=libc++ 3400 // anyway. 3401 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3402 } 3403 } 3404 3405 LangOpts.FunctionAlignment = 3406 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3407 3408 if (LangOpts.CUDA) { 3409 // During CUDA device-side compilation, the aux triple is the 3410 // triple used for host compilation. 3411 if (LangOpts.CUDAIsDevice) 3412 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3413 } 3414 3415 // Set the triple of the host for OpenMP device compile. 3416 if (LangOpts.OpenMPIsDevice) 3417 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3418 3419 // FIXME: Override value name discarding when asan or msan is used because the 3420 // backend passes depend on the name of the alloca in order to print out 3421 // names. 3422 Res.getCodeGenOpts().DiscardValueNames &= 3423 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3424 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3425 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3426 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3427 3428 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3429 Res.getFrontendOpts().ProgramAction); 3430 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3431 Res.getFrontendOpts().ProgramAction); 3432 3433 // Turn on -Wspir-compat for SPIR target. 3434 if (T.isSPIR()) 3435 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3436 3437 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3438 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3439 !Res.getLangOpts()->Sanitize.empty()) { 3440 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3441 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3442 } 3443 return Success; 3444 } 3445 3446 std::string CompilerInvocation::getModuleHash() const { 3447 // Note: For QoI reasons, the things we use as a hash here should all be 3448 // dumped via the -module-info flag. 3449 using llvm::hash_code; 3450 using llvm::hash_value; 3451 using llvm::hash_combine; 3452 3453 // Start the signature with the compiler version. 3454 // FIXME: We'd rather use something more cryptographically sound than 3455 // CityHash, but this will do for now. 3456 hash_code code = hash_value(getClangFullRepositoryVersion()); 3457 3458 // Extend the signature with the language options 3459 #define LANGOPT(Name, Bits, Default, Description) \ 3460 code = hash_combine(code, LangOpts->Name); 3461 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3462 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3463 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3464 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3465 #include "clang/Basic/LangOptions.def" 3466 3467 for (StringRef Feature : LangOpts->ModuleFeatures) 3468 code = hash_combine(code, Feature); 3469 3470 // Extend the signature with the target options. 3471 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3472 TargetOpts->ABI); 3473 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3474 code = hash_combine(code, FeatureAsWritten); 3475 3476 // Extend the signature with preprocessor options. 3477 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3478 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3479 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3480 3481 for (const auto &I : getPreprocessorOpts().Macros) { 3482 // If we're supposed to ignore this macro for the purposes of modules, 3483 // don't put it into the hash. 3484 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3485 // Check whether we're ignoring this macro. 3486 StringRef MacroDef = I.first; 3487 if (hsOpts.ModulesIgnoreMacros.count( 3488 llvm::CachedHashString(MacroDef.split('=').first))) 3489 continue; 3490 } 3491 3492 code = hash_combine(code, I.first, I.second); 3493 } 3494 3495 // Extend the signature with the sysroot and other header search options. 3496 code = hash_combine(code, hsOpts.Sysroot, 3497 hsOpts.ModuleFormat, 3498 hsOpts.UseDebugInfo, 3499 hsOpts.UseBuiltinIncludes, 3500 hsOpts.UseStandardSystemIncludes, 3501 hsOpts.UseStandardCXXIncludes, 3502 hsOpts.UseLibcxx, 3503 hsOpts.ModulesValidateDiagnosticOptions); 3504 code = hash_combine(code, hsOpts.ResourceDir); 3505 3506 // Extend the signature with the user build path. 3507 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3508 3509 // Extend the signature with the module file extensions. 3510 const FrontendOptions &frontendOpts = getFrontendOpts(); 3511 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3512 code = ext->hashExtension(code); 3513 } 3514 3515 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3516 // affects the debug info in the PCM. 3517 if (getCodeGenOpts().DebugTypeExtRefs) 3518 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3519 code = hash_combine(code, KeyValue.first, KeyValue.second); 3520 3521 // Extend the signature with the enabled sanitizers, if at least one is 3522 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3523 SanitizerSet SanHash = LangOpts->Sanitize; 3524 SanHash.clear(getPPTransparentSanitizers()); 3525 if (!SanHash.empty()) 3526 code = hash_combine(code, SanHash.Mask); 3527 3528 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3529 } 3530 3531 template<typename IntTy> 3532 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 3533 IntTy Default, 3534 DiagnosticsEngine *Diags) { 3535 IntTy Res = Default; 3536 if (Arg *A = Args.getLastArg(Id)) { 3537 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 3538 if (Diags) 3539 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 3540 << A->getValue(); 3541 } 3542 } 3543 return Res; 3544 } 3545 3546 namespace clang { 3547 3548 // Declared in clang/Frontend/Utils.h. 3549 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 3550 DiagnosticsEngine *Diags) { 3551 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 3552 } 3553 3554 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 3555 uint64_t Default, 3556 DiagnosticsEngine *Diags) { 3557 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 3558 } 3559 3560 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3561 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3562 DiagnosticsEngine &Diags) { 3563 return createVFSFromCompilerInvocation(CI, Diags, 3564 llvm::vfs::getRealFileSystem()); 3565 } 3566 3567 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3568 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3569 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3570 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3571 return BaseFS; 3572 3573 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3574 // earlier vfs files are on the bottom 3575 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3576 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3577 Result->getBufferForFile(File); 3578 if (!Buffer) { 3579 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3580 continue; 3581 } 3582 3583 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3584 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3585 /*DiagContext*/ nullptr, Result); 3586 if (!FS) { 3587 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3588 continue; 3589 } 3590 3591 Result = FS; 3592 } 3593 return Result; 3594 } 3595 3596 } // namespace clang 3597