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