1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/ObjCRuntime.h" 22 #include "clang/Basic/Sanitizers.h" 23 #include "clang/Basic/SourceLocation.h" 24 #include "clang/Basic/TargetOptions.h" 25 #include "clang/Basic/Version.h" 26 #include "clang/Basic/Visibility.h" 27 #include "clang/Basic/XRayInstr.h" 28 #include "clang/Config/config.h" 29 #include "clang/Driver/Driver.h" 30 #include "clang/Driver/DriverDiagnostic.h" 31 #include "clang/Driver/Options.h" 32 #include "clang/Frontend/CommandLineSourceLoc.h" 33 #include "clang/Frontend/DependencyOutputOptions.h" 34 #include "clang/Frontend/FrontendDiagnostic.h" 35 #include "clang/Frontend/FrontendOptions.h" 36 #include "clang/Frontend/FrontendPluginRegistry.h" 37 #include "clang/Frontend/LangStandard.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/Utils.h" 41 #include "clang/Lex/HeaderSearchOptions.h" 42 #include "clang/Lex/PreprocessorOptions.h" 43 #include "clang/Sema/CodeCompleteOptions.h" 44 #include "clang/Serialization/ModuleFileExtension.h" 45 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 46 #include "llvm/ADT/APInt.h" 47 #include "llvm/ADT/ArrayRef.h" 48 #include "llvm/ADT/CachedHashString.h" 49 #include "llvm/ADT/Hashing.h" 50 #include "llvm/ADT/None.h" 51 #include "llvm/ADT/Optional.h" 52 #include "llvm/ADT/SmallString.h" 53 #include "llvm/ADT/SmallVector.h" 54 #include "llvm/ADT/StringRef.h" 55 #include "llvm/ADT/StringSwitch.h" 56 #include "llvm/ADT/Triple.h" 57 #include "llvm/ADT/Twine.h" 58 #include "llvm/IR/DebugInfoMetadata.h" 59 #include "llvm/Linker/Linker.h" 60 #include "llvm/MC/MCTargetOptions.h" 61 #include "llvm/Option/Arg.h" 62 #include "llvm/Option/ArgList.h" 63 #include "llvm/Option/OptSpecifier.h" 64 #include "llvm/Option/OptTable.h" 65 #include "llvm/Option/Option.h" 66 #include "llvm/ProfileData/InstrProfReader.h" 67 #include "llvm/Support/CodeGen.h" 68 #include "llvm/Support/Compiler.h" 69 #include "llvm/Support/Error.h" 70 #include "llvm/Support/ErrorHandling.h" 71 #include "llvm/Support/ErrorOr.h" 72 #include "llvm/Support/FileSystem.h" 73 #include "llvm/Support/Host.h" 74 #include "llvm/Support/MathExtras.h" 75 #include "llvm/Support/MemoryBuffer.h" 76 #include "llvm/Support/Path.h" 77 #include "llvm/Support/Process.h" 78 #include "llvm/Support/Regex.h" 79 #include "llvm/Support/VersionTuple.h" 80 #include "llvm/Support/VirtualFileSystem.h" 81 #include "llvm/Support/raw_ostream.h" 82 #include "llvm/Target/TargetOptions.h" 83 #include <algorithm> 84 #include <atomic> 85 #include <cassert> 86 #include <cstddef> 87 #include <cstring> 88 #include <memory> 89 #include <string> 90 #include <tuple> 91 #include <utility> 92 #include <vector> 93 94 using namespace clang; 95 using namespace driver; 96 using namespace options; 97 using namespace llvm::opt; 98 99 //===----------------------------------------------------------------------===// 100 // Initialization. 101 //===----------------------------------------------------------------------===// 102 103 CompilerInvocationBase::CompilerInvocationBase() 104 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 105 DiagnosticOpts(new DiagnosticOptions()), 106 HeaderSearchOpts(new HeaderSearchOptions()), 107 PreprocessorOpts(new PreprocessorOptions()) {} 108 109 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 110 : LangOpts(new LangOptions(*X.getLangOpts())), 111 TargetOpts(new TargetOptions(X.getTargetOpts())), 112 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 113 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 114 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 115 116 CompilerInvocationBase::~CompilerInvocationBase() = default; 117 118 //===----------------------------------------------------------------------===// 119 // Deserialization (from args) 120 //===----------------------------------------------------------------------===// 121 122 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 123 DiagnosticsEngine &Diags) { 124 unsigned DefaultOpt = llvm::CodeGenOpt::None; 125 if (IK.getLanguage() == InputKind::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 126 DefaultOpt = llvm::CodeGenOpt::Default; 127 128 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 129 if (A->getOption().matches(options::OPT_O0)) 130 return llvm::CodeGenOpt::None; 131 132 if (A->getOption().matches(options::OPT_Ofast)) 133 return llvm::CodeGenOpt::Aggressive; 134 135 assert(A->getOption().matches(options::OPT_O)); 136 137 StringRef S(A->getValue()); 138 if (S == "s" || S == "z" || S.empty()) 139 return llvm::CodeGenOpt::Default; 140 141 if (S == "g") 142 return llvm::CodeGenOpt::Less; 143 144 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 145 } 146 147 return DefaultOpt; 148 } 149 150 static unsigned getOptimizationLevelSize(ArgList &Args) { 151 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 152 if (A->getOption().matches(options::OPT_O)) { 153 switch (A->getValue()[0]) { 154 default: 155 return 0; 156 case 's': 157 return 1; 158 case 'z': 159 return 2; 160 } 161 } 162 } 163 return 0; 164 } 165 166 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 167 OptSpecifier GroupWithValue, 168 std::vector<std::string> &Diagnostics) { 169 for (auto *A : Args.filtered(Group)) { 170 if (A->getOption().getKind() == Option::FlagClass) { 171 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 172 // its name (minus the "W" or "R" at the beginning) to the warning list. 173 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 174 } else if (A->getOption().matches(GroupWithValue)) { 175 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 176 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 177 } else { 178 // Otherwise, add its value (for OPT_W_Joined and similar). 179 for (const auto *Arg : A->getValues()) 180 Diagnostics.emplace_back(Arg); 181 } 182 } 183 } 184 185 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 186 // it won't verify the input. 187 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 188 DiagnosticsEngine *Diags); 189 190 static void getAllNoBuiltinFuncValues(ArgList &Args, 191 std::vector<std::string> &Funcs) { 192 SmallVector<const char *, 8> Values; 193 for (const auto &Arg : Args) { 194 const Option &O = Arg->getOption(); 195 if (O.matches(options::OPT_fno_builtin_)) { 196 const char *FuncName = Arg->getValue(); 197 if (Builtin::Context::isBuiltinFunc(FuncName)) 198 Values.push_back(FuncName); 199 } 200 } 201 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 202 } 203 204 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 205 DiagnosticsEngine &Diags) { 206 bool Success = true; 207 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 208 StringRef Name = A->getValue(); 209 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 210 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 211 .Case(CMDFLAG, NAME##Model) 212 #include "clang/StaticAnalyzer/Core/Analyses.def" 213 .Default(NumStores); 214 if (Value == NumStores) { 215 Diags.Report(diag::err_drv_invalid_value) 216 << A->getAsString(Args) << Name; 217 Success = false; 218 } else { 219 Opts.AnalysisStoreOpt = Value; 220 } 221 } 222 223 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 224 StringRef Name = A->getValue(); 225 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 226 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 227 .Case(CMDFLAG, NAME##Model) 228 #include "clang/StaticAnalyzer/Core/Analyses.def" 229 .Default(NumConstraints); 230 if (Value == NumConstraints) { 231 Diags.Report(diag::err_drv_invalid_value) 232 << A->getAsString(Args) << Name; 233 Success = false; 234 } else { 235 Opts.AnalysisConstraintsOpt = Value; 236 } 237 } 238 239 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 240 StringRef Name = A->getValue(); 241 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 242 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 243 .Case(CMDFLAG, PD_##NAME) 244 #include "clang/StaticAnalyzer/Core/Analyses.def" 245 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 246 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 247 Diags.Report(diag::err_drv_invalid_value) 248 << A->getAsString(Args) << Name; 249 Success = false; 250 } else { 251 Opts.AnalysisDiagOpt = Value; 252 } 253 } 254 255 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 256 StringRef Name = A->getValue(); 257 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 258 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 259 .Case(CMDFLAG, NAME) 260 #include "clang/StaticAnalyzer/Core/Analyses.def" 261 .Default(NumPurgeModes); 262 if (Value == NumPurgeModes) { 263 Diags.Report(diag::err_drv_invalid_value) 264 << A->getAsString(Args) << Name; 265 Success = false; 266 } else { 267 Opts.AnalysisPurgeOpt = Value; 268 } 269 } 270 271 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 272 StringRef Name = A->getValue(); 273 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 274 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 275 .Case(CMDFLAG, NAME) 276 #include "clang/StaticAnalyzer/Core/Analyses.def" 277 .Default(NumInliningModes); 278 if (Value == NumInliningModes) { 279 Diags.Report(diag::err_drv_invalid_value) 280 << A->getAsString(Args) << Name; 281 Success = false; 282 } else { 283 Opts.InliningMode = Value; 284 } 285 } 286 287 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 288 Opts.ShowCheckerHelpHidden = Args.hasArg(OPT_analyzer_checker_help_hidden); 289 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 290 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 291 Opts.ShouldEmitErrorsOnInvalidConfigValue = 292 /* negated */!llvm::StringSwitch<bool>( 293 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 294 .Case("true", true) 295 .Case("false", false) 296 .Default(false); 297 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 298 299 Opts.visualizeExplodedGraphWithGraphViz = 300 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 301 Opts.DumpExplodedGraphTo = Args.getLastArgValue(OPT_analyzer_dump_egraph); 302 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 303 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 304 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 305 Opts.AnalyzeNestedBlocks = 306 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 307 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 308 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 309 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 310 Opts.maxBlockVisitOnPath = 311 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 312 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 313 Opts.InlineMaxStackDepth = 314 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 315 Opts.InlineMaxStackDepth, Diags); 316 317 Opts.CheckersControlList.clear(); 318 for (const Arg *A : 319 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 320 A->claim(); 321 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 322 // We can have a list of comma separated checker names, e.g: 323 // '-analyzer-checker=cocoa,unix' 324 StringRef checkerList = A->getValue(); 325 SmallVector<StringRef, 4> checkers; 326 checkerList.split(checkers, ","); 327 for (auto checker : checkers) 328 Opts.CheckersControlList.emplace_back(checker, enable); 329 } 330 331 // Go through the analyzer configuration options. 332 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 333 334 // We can have a list of comma separated config names, e.g: 335 // '-analyzer-config key1=val1,key2=val2' 336 StringRef configList = A->getValue(); 337 SmallVector<StringRef, 4> configVals; 338 configList.split(configVals, ","); 339 for (const auto &configVal : configVals) { 340 StringRef key, val; 341 std::tie(key, val) = configVal.split("="); 342 if (val.empty()) { 343 Diags.Report(SourceLocation(), 344 diag::err_analyzer_config_no_value) << configVal; 345 Success = false; 346 break; 347 } 348 if (val.find('=') != StringRef::npos) { 349 Diags.Report(SourceLocation(), 350 diag::err_analyzer_config_multiple_values) 351 << configVal; 352 Success = false; 353 break; 354 } 355 356 // TODO: Check checker options too, possibly in CheckerRegistry. 357 // Leave unknown non-checker configs unclaimed. 358 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 359 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 360 Diags.Report(diag::err_analyzer_config_unknown) << key; 361 continue; 362 } 363 364 A->claim(); 365 Opts.Config[key] = val; 366 } 367 } 368 369 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 370 parseAnalyzerConfigs(Opts, &Diags); 371 else 372 parseAnalyzerConfigs(Opts, nullptr); 373 374 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 375 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 376 if (i != 0) 377 os << " "; 378 os << Args.getArgString(i); 379 } 380 os.flush(); 381 382 return Success; 383 } 384 385 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 386 StringRef OptionName, StringRef DefaultVal) { 387 return Config.insert({OptionName, DefaultVal}).first->second; 388 } 389 390 static void initOption(AnalyzerOptions::ConfigTable &Config, 391 DiagnosticsEngine *Diags, 392 StringRef &OptionField, StringRef Name, 393 StringRef DefaultVal) { 394 // String options may be known to invalid (e.g. if the expected string is a 395 // file name, but the file does not exist), those will have to be checked in 396 // parseConfigs. 397 OptionField = getStringOption(Config, Name, DefaultVal); 398 } 399 400 static void initOption(AnalyzerOptions::ConfigTable &Config, 401 DiagnosticsEngine *Diags, 402 bool &OptionField, StringRef Name, bool DefaultVal) { 403 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 404 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 405 .Case("true", true) 406 .Case("false", false) 407 .Default(None); 408 409 if (!PossiblyInvalidVal) { 410 if (Diags) 411 Diags->Report(diag::err_analyzer_config_invalid_input) 412 << Name << "a boolean"; 413 else 414 OptionField = DefaultVal; 415 } else 416 OptionField = PossiblyInvalidVal.getValue(); 417 } 418 419 static void initOption(AnalyzerOptions::ConfigTable &Config, 420 DiagnosticsEngine *Diags, 421 unsigned &OptionField, StringRef Name, 422 unsigned DefaultVal) { 423 424 OptionField = DefaultVal; 425 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 426 .getAsInteger(0, OptionField); 427 if (Diags && HasFailed) 428 Diags->Report(diag::err_analyzer_config_invalid_input) 429 << Name << "an unsigned"; 430 } 431 432 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 433 DiagnosticsEngine *Diags) { 434 // TODO: There's no need to store the entire configtable, it'd be plenty 435 // enough tostore checker options. 436 437 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 438 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 439 440 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 441 SHALLOW_VAL, DEEP_VAL) \ 442 switch (AnOpts.getUserMode()) { \ 443 case UMK_Shallow: \ 444 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 445 break; \ 446 case UMK_Deep: \ 447 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 448 break; \ 449 } \ 450 451 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 452 #undef ANALYZER_OPTION 453 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 454 455 // At this point, AnalyzerOptions is configured. Let's validate some options. 456 457 if (!Diags) 458 return; 459 460 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 461 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 462 << "a filename"; 463 464 if (!AnOpts.ModelPath.empty() && 465 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 466 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 467 << "a filename"; 468 } 469 470 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 471 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 472 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 473 return true; 474 } 475 476 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 477 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 478 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 479 } 480 481 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 482 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 483 StringRef Value = A->getValue(); 484 if (Value == "small" || Value == "kernel" || Value == "medium" || 485 Value == "large" || Value == "tiny") 486 return Value; 487 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 488 } 489 return "default"; 490 } 491 492 static llvm::Reloc::Model getRelocModel(ArgList &Args, 493 DiagnosticsEngine &Diags) { 494 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 495 StringRef Value = A->getValue(); 496 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 497 .Case("static", llvm::Reloc::Static) 498 .Case("pic", llvm::Reloc::PIC_) 499 .Case("ropi", llvm::Reloc::ROPI) 500 .Case("rwpi", llvm::Reloc::RWPI) 501 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 502 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 503 .Default(None); 504 if (RM.hasValue()) 505 return *RM; 506 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 507 } 508 return llvm::Reloc::PIC_; 509 } 510 511 /// Create a new Regex instance out of the string value in \p RpassArg. 512 /// It returns a pointer to the newly generated Regex instance. 513 static std::shared_ptr<llvm::Regex> 514 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 515 Arg *RpassArg) { 516 StringRef Val = RpassArg->getValue(); 517 std::string RegexError; 518 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 519 if (!Pattern->isValid(RegexError)) { 520 Diags.Report(diag::err_drv_optimization_remark_pattern) 521 << RegexError << RpassArg->getAsString(Args); 522 Pattern.reset(); 523 } 524 return Pattern; 525 } 526 527 static bool parseDiagnosticLevelMask(StringRef FlagName, 528 const std::vector<std::string> &Levels, 529 DiagnosticsEngine *Diags, 530 DiagnosticLevelMask &M) { 531 bool Success = true; 532 for (const auto &Level : Levels) { 533 DiagnosticLevelMask const PM = 534 llvm::StringSwitch<DiagnosticLevelMask>(Level) 535 .Case("note", DiagnosticLevelMask::Note) 536 .Case("remark", DiagnosticLevelMask::Remark) 537 .Case("warning", DiagnosticLevelMask::Warning) 538 .Case("error", DiagnosticLevelMask::Error) 539 .Default(DiagnosticLevelMask::None); 540 if (PM == DiagnosticLevelMask::None) { 541 Success = false; 542 if (Diags) 543 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 544 } 545 M = M | PM; 546 } 547 return Success; 548 } 549 550 static void parseSanitizerKinds(StringRef FlagName, 551 const std::vector<std::string> &Sanitizers, 552 DiagnosticsEngine &Diags, SanitizerSet &S) { 553 for (const auto &Sanitizer : Sanitizers) { 554 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 555 if (K == SanitizerMask()) 556 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 557 else 558 S.set(K, true); 559 } 560 } 561 562 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 563 ArgList &Args, DiagnosticsEngine &D, 564 XRayInstrSet &S) { 565 llvm::SmallVector<StringRef, 2> BundleParts; 566 llvm::SplitString(Bundle, BundleParts, ","); 567 for (const auto B : BundleParts) { 568 auto Mask = parseXRayInstrValue(B); 569 if (Mask == XRayInstrKind::None) 570 if (B != "none") 571 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 572 else 573 S.Mask = Mask; 574 else if (Mask == XRayInstrKind::All) 575 S.Mask = Mask; 576 else 577 S.set(Mask, true); 578 } 579 } 580 581 // Set the profile kind for fprofile-instrument. 582 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 583 DiagnosticsEngine &Diags) { 584 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 585 if (A == nullptr) 586 return; 587 StringRef S = A->getValue(); 588 unsigned I = llvm::StringSwitch<unsigned>(S) 589 .Case("none", CodeGenOptions::ProfileNone) 590 .Case("clang", CodeGenOptions::ProfileClangInstr) 591 .Case("llvm", CodeGenOptions::ProfileIRInstr) 592 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 593 .Default(~0U); 594 if (I == ~0U) { 595 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 596 << S; 597 return; 598 } 599 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 600 Opts.setProfileInstr(Instrumentor); 601 } 602 603 // Set the profile kind using fprofile-instrument-use-path. 604 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 605 const Twine &ProfileName) { 606 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 607 // In error, return silently and let Clang PGOUse report the error message. 608 if (auto E = ReaderOrErr.takeError()) { 609 llvm::consumeError(std::move(E)); 610 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 611 return; 612 } 613 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 614 std::move(ReaderOrErr.get()); 615 if (PGOReader->isIRLevelProfile()) { 616 if (PGOReader->hasCSIRLevelProfile()) 617 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 618 else 619 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 620 } else 621 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 622 } 623 624 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 625 DiagnosticsEngine &Diags, 626 const TargetOptions &TargetOpts, 627 const FrontendOptions &FrontendOpts) { 628 bool Success = true; 629 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 630 631 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 632 // TODO: This could be done in Driver 633 unsigned MaxOptLevel = 3; 634 if (OptimizationLevel > MaxOptLevel) { 635 // If the optimization level is not supported, fall back on the default 636 // optimization 637 Diags.Report(diag::warn_drv_optimization_value) 638 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 639 OptimizationLevel = MaxOptLevel; 640 } 641 Opts.OptimizationLevel = OptimizationLevel; 642 643 // At O0 we want to fully disable inlining outside of cases marked with 644 // 'alwaysinline' that are required for correctness. 645 Opts.setInlining((Opts.OptimizationLevel == 0) 646 ? CodeGenOptions::OnlyAlwaysInlining 647 : CodeGenOptions::NormalInlining); 648 // Explicit inlining flags can disable some or all inlining even at 649 // optimization levels above zero. 650 if (Arg *InlineArg = Args.getLastArg( 651 options::OPT_finline_functions, options::OPT_finline_hint_functions, 652 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 653 if (Opts.OptimizationLevel > 0) { 654 const Option &InlineOpt = InlineArg->getOption(); 655 if (InlineOpt.matches(options::OPT_finline_functions)) 656 Opts.setInlining(CodeGenOptions::NormalInlining); 657 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 658 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 659 else 660 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 661 } 662 } 663 664 Opts.ExperimentalNewPassManager = Args.hasFlag( 665 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 666 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 667 668 Opts.DebugPassManager = 669 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 670 /* Default */ false); 671 672 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 673 StringRef Name = A->getValue(); 674 if (Name == "Accelerate") 675 Opts.setVecLib(CodeGenOptions::Accelerate); 676 else if (Name == "SVML") 677 Opts.setVecLib(CodeGenOptions::SVML); 678 else if (Name == "none") 679 Opts.setVecLib(CodeGenOptions::NoLibrary); 680 else 681 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 682 } 683 684 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 685 unsigned Val = 686 llvm::StringSwitch<unsigned>(A->getValue()) 687 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 688 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 689 .Case("limited", codegenoptions::LimitedDebugInfo) 690 .Case("standalone", codegenoptions::FullDebugInfo) 691 .Default(~0U); 692 if (Val == ~0U) 693 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 694 << A->getValue(); 695 else 696 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 697 } 698 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 699 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 700 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 701 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 702 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 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.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 709 } 710 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 711 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 712 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 713 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 714 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 715 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 716 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 717 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 718 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 719 720 if (Arg *A = 721 Args.getLastArg(OPT_enable_split_dwarf, OPT_enable_split_dwarf_EQ)) { 722 if (A->getOption().matches(options::OPT_enable_split_dwarf)) { 723 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 724 } else { 725 StringRef Name = A->getValue(); 726 if (Name == "single") 727 Opts.setSplitDwarfMode(CodeGenOptions::SingleFileFission); 728 else if (Name == "split") 729 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 730 else 731 Diags.Report(diag::err_drv_invalid_value) 732 << A->getAsString(Args) << Name; 733 } 734 } 735 736 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 737 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 738 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 739 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 740 741 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 742 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 743 744 if (const Arg *A = 745 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 746 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 747 748 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 749 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 750 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 751 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 752 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 753 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 754 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 755 OPT_fuse_register_sized_bitfield_access); 756 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 757 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 758 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 759 Args.hasArg(OPT_new_struct_path_tbaa); 760 Opts.FineGrainedBitfieldAccesses = 761 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 762 OPT_fno_fine_grained_bitfield_accesses, false); 763 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 764 Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line); 765 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 766 Opts.NoCommon = Args.hasArg(OPT_fno_common); 767 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 768 Opts.OptimizeSize = getOptimizationLevelSize(Args); 769 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 770 Args.hasArg(OPT_ffreestanding)); 771 if (Opts.SimplifyLibCalls) 772 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 773 Opts.UnrollLoops = 774 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 775 (Opts.OptimizationLevel > 1)); 776 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 777 778 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 779 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 780 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 781 Opts.DebugInfoForProfiling = Args.hasFlag( 782 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 783 Opts.DebugNameTable = static_cast<unsigned>( 784 Args.hasArg(OPT_ggnu_pubnames) 785 ? llvm::DICompileUnit::DebugNameTableKind::GNU 786 : Args.hasArg(OPT_gpubnames) 787 ? llvm::DICompileUnit::DebugNameTableKind::Default 788 : llvm::DICompileUnit::DebugNameTableKind::None); 789 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 790 791 setPGOInstrumentor(Opts, Args, Diags); 792 Opts.InstrProfileOutput = 793 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 794 Opts.ProfileInstrumentUsePath = 795 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 796 if (!Opts.ProfileInstrumentUsePath.empty()) 797 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 798 Opts.ProfileRemappingFile = 799 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ); 800 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 801 Diags.Report(diag::err_drv_argument_only_allowed_with) 802 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 803 << "-fexperimental-new-pass-manager"; 804 } 805 806 Opts.CoverageMapping = 807 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 808 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 809 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 810 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 811 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 812 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 813 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 814 Opts.RegisterGlobalDtorsWithAtExit = 815 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 816 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 817 Opts.CodeModel = TargetOpts.CodeModel; 818 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 819 Opts.DisableFPElim = 820 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 821 Opts.DisableFree = Args.hasArg(OPT_disable_free); 822 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 823 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 824 Opts.NoEscapingBlockTailCalls = 825 Args.hasArg(OPT_fno_escaping_block_tail_calls); 826 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 827 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 828 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 829 Args.hasArg(OPT_cl_fast_relaxed_math); 830 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 831 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 832 Args.hasArg(OPT_cl_finite_math_only) || 833 Args.hasArg(OPT_cl_fast_relaxed_math)); 834 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 835 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 836 Args.hasArg(OPT_cl_finite_math_only) || 837 Args.hasArg(OPT_cl_fast_relaxed_math)); 838 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 839 Args.hasArg(OPT_cl_no_signed_zeros) || 840 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 841 Args.hasArg(OPT_cl_fast_relaxed_math)); 842 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 843 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) || 844 (Args.hasArg(OPT_fcuda_is_device) && 845 Args.hasArg(OPT_fcuda_flush_denormals_to_zero)); 846 Opts.CorrectlyRoundedDivSqrt = 847 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 848 Opts.UniformWGSize = 849 Args.hasArg(OPT_cl_uniform_work_group_size); 850 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 851 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 852 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 853 Opts.StrictFloatCastOverflow = 854 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 855 856 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 857 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 858 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 859 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 860 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 861 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 862 Opts.IncrementalLinkerCompatible = 863 Args.hasArg(OPT_mincremental_linker_compatible); 864 Opts.PIECopyRelocations = 865 Args.hasArg(OPT_mpie_copy_relocations); 866 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 867 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 868 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 869 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 870 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 871 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 872 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 873 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 874 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 875 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 876 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 877 Args.hasArg(OPT_cl_fast_relaxed_math); 878 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 879 Opts.RelocationModel = getRelocModel(Args, Diags); 880 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 881 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 882 Diags.Report(diag::err_drv_invalid_value) 883 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 884 << Opts.ThreadModel; 885 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 886 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 887 888 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 889 OPT_fno_function_sections, false); 890 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 891 OPT_fno_data_sections, false); 892 Opts.StackSizeSection = 893 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 894 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 895 OPT_fno_unique_section_names, true); 896 897 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 898 899 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 900 901 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 902 903 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 904 905 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 906 Opts.PrepareForThinLTO = false; 907 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 908 StringRef S = A->getValue(); 909 if (S == "thin") 910 Opts.PrepareForThinLTO = true; 911 else if (S != "full") 912 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 913 } 914 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 915 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 916 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 917 if (IK.getLanguage() != InputKind::LLVM_IR) 918 Diags.Report(diag::err_drv_argument_only_allowed_with) 919 << A->getAsString(Args) << "-x ir"; 920 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 921 } 922 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 923 Opts.SaveTempsFilePrefix = 924 llvm::StringSwitch<std::string>(A->getValue()) 925 .Case("obj", FrontendOpts.OutputFile) 926 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 927 928 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 929 930 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 931 932 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 933 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 934 935 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 936 937 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 938 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 939 940 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 941 942 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 943 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 944 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 945 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 946 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 947 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 948 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 949 Opts.CoverageNoFunctionNamesInData = 950 Args.hasArg(OPT_coverage_no_function_names_in_data); 951 Opts.ProfileFilterFiles = 952 Args.getLastArgValue(OPT_fprofile_filter_files_EQ); 953 Opts.ProfileExcludeFiles = 954 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ); 955 Opts.CoverageExitBlockBeforeBody = 956 Args.hasArg(OPT_coverage_exit_block_before_body); 957 if (Args.hasArg(OPT_coverage_version_EQ)) { 958 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 959 if (CoverageVersion.size() != 4) { 960 Diags.Report(diag::err_drv_invalid_value) 961 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 962 << CoverageVersion; 963 } else { 964 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 965 } 966 } 967 } 968 // Handle -fembed-bitcode option. 969 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 970 StringRef Name = A->getValue(); 971 unsigned Model = llvm::StringSwitch<unsigned>(Name) 972 .Case("off", CodeGenOptions::Embed_Off) 973 .Case("all", CodeGenOptions::Embed_All) 974 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 975 .Case("marker", CodeGenOptions::Embed_Marker) 976 .Default(~0U); 977 if (Model == ~0U) { 978 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 979 Success = false; 980 } else 981 Opts.setEmbedBitcode( 982 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 983 } 984 // FIXME: For backend options that are not yet recorded as function 985 // attributes in the IR, keep track of them so we can embed them in a 986 // separate data section and use them when building the bitcode. 987 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 988 for (const auto &A : Args) { 989 // Do not encode output and input. 990 if (A->getOption().getID() == options::OPT_o || 991 A->getOption().getID() == options::OPT_INPUT || 992 A->getOption().getID() == options::OPT_x || 993 A->getOption().getID() == options::OPT_fembed_bitcode || 994 (A->getOption().getGroup().isValid() && 995 A->getOption().getGroup().getID() == options::OPT_W_Group)) 996 continue; 997 ArgStringList ASL; 998 A->render(Args, ASL); 999 for (const auto &arg : ASL) { 1000 StringRef ArgStr(arg); 1001 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1002 // using \00 to separate each commandline options. 1003 Opts.CmdArgs.push_back('\0'); 1004 } 1005 } 1006 } 1007 1008 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1009 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1010 Opts.InstrumentFunctionsAfterInlining = 1011 Args.hasArg(OPT_finstrument_functions_after_inlining); 1012 Opts.InstrumentFunctionEntryBare = 1013 Args.hasArg(OPT_finstrument_function_entry_bare); 1014 1015 Opts.XRayInstrumentFunctions = 1016 Args.hasArg(OPT_fxray_instrument); 1017 Opts.XRayAlwaysEmitCustomEvents = 1018 Args.hasArg(OPT_fxray_always_emit_customevents); 1019 Opts.XRayAlwaysEmitTypedEvents = 1020 Args.hasArg(OPT_fxray_always_emit_typedevents); 1021 Opts.XRayInstructionThreshold = 1022 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1023 1024 auto XRayInstrBundles = 1025 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1026 if (XRayInstrBundles.empty()) 1027 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1028 else 1029 for (const auto &A : XRayInstrBundles) 1030 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1031 Diags, Opts.XRayInstrumentationBundle); 1032 1033 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1034 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1035 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1036 1037 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1038 StringRef Name = A->getValue(); 1039 if (Name == "full") { 1040 Opts.CFProtectionReturn = 1; 1041 Opts.CFProtectionBranch = 1; 1042 } else if (Name == "return") 1043 Opts.CFProtectionReturn = 1; 1044 else if (Name == "branch") 1045 Opts.CFProtectionBranch = 1; 1046 else if (Name != "none") { 1047 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1048 Success = false; 1049 } 1050 } 1051 1052 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1053 OPT_compress_debug_sections_EQ)) { 1054 if (A->getOption().getID() == OPT_compress_debug_sections) { 1055 // TODO: be more clever about the compression type auto-detection 1056 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1057 } else { 1058 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1059 .Case("none", llvm::DebugCompressionType::None) 1060 .Case("zlib", llvm::DebugCompressionType::Z) 1061 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1062 .Default(llvm::DebugCompressionType::None); 1063 Opts.setCompressDebugSections(DCT); 1064 } 1065 } 1066 1067 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1068 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1069 for (auto *A : 1070 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1071 CodeGenOptions::BitcodeFileToLink F; 1072 F.Filename = A->getValue(); 1073 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1074 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1075 // When linking CUDA bitcode, propagate function attributes so that 1076 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1077 F.PropagateAttrs = true; 1078 F.Internalize = true; 1079 } 1080 Opts.LinkBitcodeFiles.push_back(F); 1081 } 1082 Opts.SanitizeCoverageType = 1083 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1084 Opts.SanitizeCoverageIndirectCalls = 1085 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1086 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1087 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1088 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1089 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1090 Opts.SanitizeCoverage8bitCounters = 1091 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1092 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1093 Opts.SanitizeCoverageTracePCGuard = 1094 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1095 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1096 Opts.SanitizeCoverageInline8bitCounters = 1097 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1098 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1099 Opts.SanitizeCoverageStackDepth = 1100 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1101 Opts.SanitizeMemoryTrackOrigins = 1102 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1103 Opts.SanitizeMemoryUseAfterDtor = 1104 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1105 OPT_fno_sanitize_memory_use_after_dtor, 1106 false); 1107 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1108 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1109 Opts.SanitizeCfiICallGeneralizePointers = 1110 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1111 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1112 if (Arg *A = Args.getLastArg( 1113 OPT_fsanitize_address_poison_custom_array_cookie, 1114 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1115 Opts.SanitizeAddressPoisonCustomArrayCookie = 1116 A->getOption().getID() == 1117 OPT_fsanitize_address_poison_custom_array_cookie; 1118 } 1119 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1120 OPT_fno_sanitize_address_use_after_scope)) { 1121 Opts.SanitizeAddressUseAfterScope = 1122 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1123 } 1124 Opts.SanitizeAddressGlobalsDeadStripping = 1125 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1126 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1127 OPT_fno_sanitize_address_use_odr_indicator)) { 1128 Opts.SanitizeAddressUseOdrIndicator = 1129 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1130 } 1131 Opts.SSPBufferSize = 1132 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1133 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1134 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1135 StringRef Val = A->getValue(); 1136 unsigned StackAlignment = Opts.StackAlignment; 1137 Val.getAsInteger(10, StackAlignment); 1138 Opts.StackAlignment = StackAlignment; 1139 } 1140 1141 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1142 StringRef Val = A->getValue(); 1143 unsigned StackProbeSize = Opts.StackProbeSize; 1144 Val.getAsInteger(0, StackProbeSize); 1145 Opts.StackProbeSize = StackProbeSize; 1146 } 1147 1148 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1149 1150 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1151 StringRef Name = A->getValue(); 1152 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1153 .Case("legacy", CodeGenOptions::Legacy) 1154 .Case("non-legacy", CodeGenOptions::NonLegacy) 1155 .Case("mixed", CodeGenOptions::Mixed) 1156 .Default(~0U); 1157 if (Method == ~0U) { 1158 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1159 Success = false; 1160 } else { 1161 Opts.setObjCDispatchMethod( 1162 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1163 } 1164 } 1165 1166 1167 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1168 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1169 1170 if (Args.getLastArg(OPT_femulated_tls) || 1171 Args.getLastArg(OPT_fno_emulated_tls)) { 1172 Opts.ExplicitEmulatedTLS = true; 1173 Opts.EmulatedTLS = 1174 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1175 } 1176 1177 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1178 StringRef Name = A->getValue(); 1179 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1180 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1181 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1182 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1183 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1184 .Default(~0U); 1185 if (Model == ~0U) { 1186 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1187 Success = false; 1188 } else { 1189 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1190 } 1191 } 1192 1193 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1194 StringRef Val = A->getValue(); 1195 if (Val == "ieee") 1196 Opts.FPDenormalMode = "ieee"; 1197 else if (Val == "preserve-sign") 1198 Opts.FPDenormalMode = "preserve-sign"; 1199 else if (Val == "positive-zero") 1200 Opts.FPDenormalMode = "positive-zero"; 1201 else 1202 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1203 } 1204 1205 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1206 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1207 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1208 } else { 1209 assert(A->getOption().matches(OPT_freg_struct_return)); 1210 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1211 } 1212 } 1213 1214 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1215 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1216 bool NeedLocTracking = false; 1217 1218 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 1219 if (!Opts.OptRecordFile.empty()) 1220 NeedLocTracking = true; 1221 1222 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1223 Opts.OptRecordPasses = A->getValue(); 1224 NeedLocTracking = true; 1225 } 1226 1227 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1228 Opts.OptimizationRemarkPattern = 1229 GenerateOptimizationRemarkRegex(Diags, Args, A); 1230 NeedLocTracking = true; 1231 } 1232 1233 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1234 Opts.OptimizationRemarkMissedPattern = 1235 GenerateOptimizationRemarkRegex(Diags, Args, A); 1236 NeedLocTracking = true; 1237 } 1238 1239 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1240 Opts.OptimizationRemarkAnalysisPattern = 1241 GenerateOptimizationRemarkRegex(Diags, Args, A); 1242 NeedLocTracking = true; 1243 } 1244 1245 Opts.DiagnosticsWithHotness = 1246 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1247 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1248 bool UsingProfile = UsingSampleProfile || 1249 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1250 1251 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1252 // An IR file will contain PGO as metadata 1253 IK.getLanguage() != InputKind::LLVM_IR) 1254 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1255 << "-fdiagnostics-show-hotness"; 1256 1257 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1258 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1259 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1260 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1261 << "-fdiagnostics-hotness-threshold="; 1262 1263 // If the user requested to use a sample profile for PGO, then the 1264 // backend will need to track source location information so the profile 1265 // can be incorporated into the IR. 1266 if (UsingSampleProfile) 1267 NeedLocTracking = true; 1268 1269 // If the user requested a flag that requires source locations available in 1270 // the backend, make sure that the backend tracks source location information. 1271 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1272 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1273 1274 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1275 1276 // Parse -fsanitize-recover= arguments. 1277 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1278 parseSanitizerKinds("-fsanitize-recover=", 1279 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1280 Opts.SanitizeRecover); 1281 parseSanitizerKinds("-fsanitize-trap=", 1282 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1283 Opts.SanitizeTrap); 1284 1285 Opts.CudaGpuBinaryFileName = 1286 Args.getLastArgValue(OPT_fcuda_include_gpubinary); 1287 1288 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1289 1290 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1291 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1292 1293 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1294 1295 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1296 1297 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1298 StringRef SignScope = A->getValue(); 1299 1300 if (SignScope.equals_lower("none")) 1301 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1302 else if (SignScope.equals_lower("all")) 1303 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1304 else if (SignScope.equals_lower("non-leaf")) 1305 Opts.setSignReturnAddress( 1306 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1307 else 1308 Diags.Report(diag::err_drv_invalid_value) 1309 << A->getAsString(Args) << SignScope; 1310 1311 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1312 StringRef SignKey = A->getValue(); 1313 if (!SignScope.empty() && !SignKey.empty()) { 1314 if (SignKey.equals_lower("a_key")) 1315 Opts.setSignReturnAddressKey( 1316 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1317 else if (SignKey.equals_lower("b_key")) 1318 Opts.setSignReturnAddressKey( 1319 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1320 else 1321 Diags.Report(diag::err_drv_invalid_value) 1322 << A->getAsString(Args) << SignKey; 1323 } 1324 } 1325 } 1326 1327 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1328 1329 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1330 1331 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1332 1333 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1334 1335 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1336 1337 return Success; 1338 } 1339 1340 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1341 ArgList &Args) { 1342 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1343 Opts.Targets = Args.getAllArgValues(OPT_MT); 1344 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1345 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1346 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1347 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1348 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1349 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1350 if (Args.hasArg(OPT_show_includes)) { 1351 // Writing both /showIncludes and preprocessor output to stdout 1352 // would produce interleaved output, so use stderr for /showIncludes. 1353 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1354 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1355 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1356 else 1357 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1358 } else { 1359 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1360 } 1361 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1362 Opts.ModuleDependencyOutputDir = 1363 Args.getLastArgValue(OPT_module_dependency_dir); 1364 if (Args.hasArg(OPT_MV)) 1365 Opts.OutputFormat = DependencyOutputFormat::NMake; 1366 // Add sanitizer blacklists as extra dependencies. 1367 // They won't be discovered by the regular preprocessor, so 1368 // we let make / ninja to know about this implicit dependency. 1369 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1370 // Only the -fmodule-file=<file> form. 1371 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1372 StringRef Val = A->getValue(); 1373 if (Val.find('=') == StringRef::npos) 1374 Opts.ExtraDeps.push_back(Val); 1375 } 1376 } 1377 1378 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1379 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1380 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1381 // Support both clang's -f[no-]color-diagnostics and gcc's 1382 // -f[no-]diagnostics-colors[=never|always|auto]. 1383 enum { 1384 Colors_On, 1385 Colors_Off, 1386 Colors_Auto 1387 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1388 for (auto *A : Args) { 1389 const Option &O = A->getOption(); 1390 if (O.matches(options::OPT_fcolor_diagnostics) || 1391 O.matches(options::OPT_fdiagnostics_color)) { 1392 ShowColors = Colors_On; 1393 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1394 O.matches(options::OPT_fno_diagnostics_color)) { 1395 ShowColors = Colors_Off; 1396 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1397 StringRef Value(A->getValue()); 1398 if (Value == "always") 1399 ShowColors = Colors_On; 1400 else if (Value == "never") 1401 ShowColors = Colors_Off; 1402 else if (Value == "auto") 1403 ShowColors = Colors_Auto; 1404 } 1405 } 1406 return ShowColors == Colors_On || 1407 (ShowColors == Colors_Auto && 1408 llvm::sys::Process::StandardErrHasColors()); 1409 } 1410 1411 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1412 DiagnosticsEngine *Diags) { 1413 bool Success = true; 1414 for (const auto &Prefix : VerifyPrefixes) { 1415 // Every prefix must start with a letter and contain only alphanumeric 1416 // characters, hyphens, and underscores. 1417 auto BadChar = llvm::find_if(Prefix, [](char C) { 1418 return !isAlphanumeric(C) && C != '-' && C != '_'; 1419 }); 1420 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1421 Success = false; 1422 if (Diags) { 1423 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1424 Diags->Report(diag::note_drv_verify_prefix_spelling); 1425 } 1426 } 1427 } 1428 return Success; 1429 } 1430 1431 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1432 DiagnosticsEngine *Diags, 1433 bool DefaultDiagColor, bool DefaultShowOpt) { 1434 bool Success = true; 1435 1436 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1437 if (Arg *A = 1438 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1439 Opts.DiagnosticSerializationFile = A->getValue(); 1440 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1441 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1442 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1443 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1444 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1445 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1446 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1447 OPT_fno_show_column, 1448 /*Default=*/true); 1449 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1450 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1451 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1452 Opts.ShowOptionNames = 1453 Args.hasFlag(OPT_fdiagnostics_show_option, 1454 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1455 1456 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1457 1458 // Default behavior is to not to show note include stacks. 1459 Opts.ShowNoteIncludeStack = false; 1460 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1461 OPT_fno_diagnostics_show_note_include_stack)) 1462 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1463 Opts.ShowNoteIncludeStack = true; 1464 1465 StringRef ShowOverloads = 1466 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1467 if (ShowOverloads == "best") 1468 Opts.setShowOverloads(Ovl_Best); 1469 else if (ShowOverloads == "all") 1470 Opts.setShowOverloads(Ovl_All); 1471 else { 1472 Success = false; 1473 if (Diags) 1474 Diags->Report(diag::err_drv_invalid_value) 1475 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1476 << ShowOverloads; 1477 } 1478 1479 StringRef ShowCategory = 1480 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1481 if (ShowCategory == "none") 1482 Opts.ShowCategories = 0; 1483 else if (ShowCategory == "id") 1484 Opts.ShowCategories = 1; 1485 else if (ShowCategory == "name") 1486 Opts.ShowCategories = 2; 1487 else { 1488 Success = false; 1489 if (Diags) 1490 Diags->Report(diag::err_drv_invalid_value) 1491 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1492 << ShowCategory; 1493 } 1494 1495 StringRef Format = 1496 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1497 if (Format == "clang") 1498 Opts.setFormat(DiagnosticOptions::Clang); 1499 else if (Format == "msvc") 1500 Opts.setFormat(DiagnosticOptions::MSVC); 1501 else if (Format == "msvc-fallback") { 1502 Opts.setFormat(DiagnosticOptions::MSVC); 1503 Opts.CLFallbackMode = true; 1504 } else if (Format == "vi") 1505 Opts.setFormat(DiagnosticOptions::Vi); 1506 else { 1507 Success = false; 1508 if (Diags) 1509 Diags->Report(diag::err_drv_invalid_value) 1510 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1511 << Format; 1512 } 1513 1514 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1515 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1516 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1517 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1518 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1519 if (Args.hasArg(OPT_verify)) 1520 Opts.VerifyPrefixes.push_back("expected"); 1521 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1522 // then sort it to prepare for fast lookup using std::binary_search. 1523 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1524 Opts.VerifyDiagnostics = false; 1525 Success = false; 1526 } 1527 else 1528 llvm::sort(Opts.VerifyPrefixes); 1529 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1530 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1531 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1532 Diags, DiagMask); 1533 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1534 DiagMask = DiagnosticLevelMask::All; 1535 Opts.setVerifyIgnoreUnexpected(DiagMask); 1536 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1537 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1538 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1539 Opts.MacroBacktraceLimit = 1540 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1541 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1542 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1543 Args, OPT_ftemplate_backtrace_limit, 1544 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1545 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1546 Args, OPT_fconstexpr_backtrace_limit, 1547 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1548 Opts.SpellCheckingLimit = getLastArgIntValue( 1549 Args, OPT_fspell_checking_limit, 1550 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1551 Opts.SnippetLineLimit = getLastArgIntValue( 1552 Args, OPT_fcaret_diagnostics_max_lines, 1553 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1554 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1555 DiagnosticOptions::DefaultTabStop, Diags); 1556 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1557 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1558 if (Diags) 1559 Diags->Report(diag::warn_ignoring_ftabstop_value) 1560 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1561 } 1562 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1563 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1564 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1565 1566 return Success; 1567 } 1568 1569 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1570 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1571 } 1572 1573 /// Parse the argument to the -ftest-module-file-extension 1574 /// command-line argument. 1575 /// 1576 /// \returns true on error, false on success. 1577 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1578 std::string &BlockName, 1579 unsigned &MajorVersion, 1580 unsigned &MinorVersion, 1581 bool &Hashed, 1582 std::string &UserInfo) { 1583 SmallVector<StringRef, 5> Args; 1584 Arg.split(Args, ':', 5); 1585 if (Args.size() < 5) 1586 return true; 1587 1588 BlockName = Args[0]; 1589 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1590 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1591 if (Args[3].getAsInteger(2, Hashed)) return true; 1592 if (Args.size() > 4) 1593 UserInfo = Args[4]; 1594 return false; 1595 } 1596 1597 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1598 DiagnosticsEngine &Diags, 1599 bool &IsHeaderFile) { 1600 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1601 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1602 switch (A->getOption().getID()) { 1603 default: 1604 llvm_unreachable("Invalid option in group!"); 1605 case OPT_ast_list: 1606 Opts.ProgramAction = frontend::ASTDeclList; break; 1607 case OPT_ast_dump: 1608 case OPT_ast_dump_all: 1609 case OPT_ast_dump_lookups: 1610 Opts.ProgramAction = frontend::ASTDump; break; 1611 case OPT_ast_print: 1612 Opts.ProgramAction = frontend::ASTPrint; break; 1613 case OPT_ast_view: 1614 Opts.ProgramAction = frontend::ASTView; break; 1615 case OPT_compiler_options_dump: 1616 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1617 case OPT_dump_raw_tokens: 1618 Opts.ProgramAction = frontend::DumpRawTokens; break; 1619 case OPT_dump_tokens: 1620 Opts.ProgramAction = frontend::DumpTokens; break; 1621 case OPT_S: 1622 Opts.ProgramAction = frontend::EmitAssembly; break; 1623 case OPT_emit_llvm_bc: 1624 Opts.ProgramAction = frontend::EmitBC; break; 1625 case OPT_emit_html: 1626 Opts.ProgramAction = frontend::EmitHTML; break; 1627 case OPT_emit_llvm: 1628 Opts.ProgramAction = frontend::EmitLLVM; break; 1629 case OPT_emit_llvm_only: 1630 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1631 case OPT_emit_codegen_only: 1632 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1633 case OPT_emit_obj: 1634 Opts.ProgramAction = frontend::EmitObj; break; 1635 case OPT_fixit_EQ: 1636 Opts.FixItSuffix = A->getValue(); 1637 LLVM_FALLTHROUGH; 1638 case OPT_fixit: 1639 Opts.ProgramAction = frontend::FixIt; break; 1640 case OPT_emit_module: 1641 Opts.ProgramAction = frontend::GenerateModule; break; 1642 case OPT_emit_module_interface: 1643 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1644 case OPT_emit_header_module: 1645 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1646 case OPT_emit_pch: 1647 Opts.ProgramAction = frontend::GeneratePCH; break; 1648 case OPT_init_only: 1649 Opts.ProgramAction = frontend::InitOnly; break; 1650 case OPT_fsyntax_only: 1651 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1652 case OPT_module_file_info: 1653 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1654 case OPT_verify_pch: 1655 Opts.ProgramAction = frontend::VerifyPCH; break; 1656 case OPT_print_preamble: 1657 Opts.ProgramAction = frontend::PrintPreamble; break; 1658 case OPT_E: 1659 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1660 case OPT_templight_dump: 1661 Opts.ProgramAction = frontend::TemplightDump; break; 1662 case OPT_rewrite_macros: 1663 Opts.ProgramAction = frontend::RewriteMacros; break; 1664 case OPT_rewrite_objc: 1665 Opts.ProgramAction = frontend::RewriteObjC; break; 1666 case OPT_rewrite_test: 1667 Opts.ProgramAction = frontend::RewriteTest; break; 1668 case OPT_analyze: 1669 Opts.ProgramAction = frontend::RunAnalysis; break; 1670 case OPT_migrate: 1671 Opts.ProgramAction = frontend::MigrateSource; break; 1672 case OPT_Eonly: 1673 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1674 } 1675 } 1676 1677 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1678 Opts.Plugins.emplace_back(A->getValue(0)); 1679 Opts.ProgramAction = frontend::PluginAction; 1680 Opts.ActionName = A->getValue(); 1681 } 1682 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1683 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1684 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1685 1686 for (const std::string &Arg : 1687 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1688 std::string BlockName; 1689 unsigned MajorVersion; 1690 unsigned MinorVersion; 1691 bool Hashed; 1692 std::string UserInfo; 1693 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1694 MinorVersion, Hashed, UserInfo)) { 1695 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1696 1697 continue; 1698 } 1699 1700 // Add the testing module file extension. 1701 Opts.ModuleFileExtensions.push_back( 1702 std::make_shared<TestModuleFileExtension>( 1703 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1704 } 1705 1706 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1707 Opts.CodeCompletionAt = 1708 ParsedSourceLocation::FromString(A->getValue()); 1709 if (Opts.CodeCompletionAt.FileName.empty()) 1710 Diags.Report(diag::err_drv_invalid_value) 1711 << A->getAsString(Args) << A->getValue(); 1712 } 1713 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1714 1715 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1716 Opts.Plugins = Args.getAllArgValues(OPT_load); 1717 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1718 Opts.ShowHelp = Args.hasArg(OPT_help); 1719 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1720 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1721 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1722 Opts.ShowVersion = Args.hasArg(OPT_version); 1723 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1724 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1725 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1726 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1727 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1728 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1729 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1730 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1731 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1732 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1733 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1734 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1735 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1736 // Only the -fmodule-file=<file> form. 1737 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1738 StringRef Val = A->getValue(); 1739 if (Val.find('=') == StringRef::npos) 1740 Opts.ModuleFiles.push_back(Val); 1741 } 1742 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1743 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1744 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1745 1746 Opts.CodeCompleteOpts.IncludeMacros 1747 = Args.hasArg(OPT_code_completion_macros); 1748 Opts.CodeCompleteOpts.IncludeCodePatterns 1749 = Args.hasArg(OPT_code_completion_patterns); 1750 Opts.CodeCompleteOpts.IncludeGlobals 1751 = !Args.hasArg(OPT_no_code_completion_globals); 1752 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1753 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1754 Opts.CodeCompleteOpts.IncludeBriefComments 1755 = Args.hasArg(OPT_code_completion_brief_comments); 1756 Opts.CodeCompleteOpts.IncludeFixIts 1757 = Args.hasArg(OPT_code_completion_with_fixits); 1758 1759 Opts.OverrideRecordLayoutsFile 1760 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1761 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple); 1762 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1763 1764 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1765 OPT_arcmt_modify, 1766 OPT_arcmt_migrate)) { 1767 switch (A->getOption().getID()) { 1768 default: 1769 llvm_unreachable("missed a case"); 1770 case OPT_arcmt_check: 1771 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1772 break; 1773 case OPT_arcmt_modify: 1774 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1775 break; 1776 case OPT_arcmt_migrate: 1777 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1778 break; 1779 } 1780 } 1781 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1782 Opts.ARCMTMigrateReportOut 1783 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1784 Opts.ARCMTMigrateEmitARCErrors 1785 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1786 1787 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1788 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1789 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1790 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1791 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1792 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1793 if (Args.hasArg(OPT_objcmt_migrate_property)) 1794 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1795 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1796 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1797 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1798 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1799 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1800 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1801 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1802 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1803 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1804 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1805 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1806 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1807 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1808 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1809 if (Args.hasArg(OPT_objcmt_atomic_property)) 1810 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1811 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1812 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1813 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1814 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1815 if (Args.hasArg(OPT_objcmt_migrate_all)) 1816 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1817 1818 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1819 1820 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1821 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1822 Diags.Report(diag::err_drv_argument_not_allowed_with) 1823 << "ARC migration" << "ObjC migration"; 1824 } 1825 1826 InputKind DashX(InputKind::Unknown); 1827 if (const Arg *A = Args.getLastArg(OPT_x)) { 1828 StringRef XValue = A->getValue(); 1829 1830 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1831 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1832 bool Preprocessed = XValue.consume_back("-cpp-output"); 1833 bool ModuleMap = XValue.consume_back("-module-map"); 1834 IsHeaderFile = 1835 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1836 1837 // Principal languages. 1838 DashX = llvm::StringSwitch<InputKind>(XValue) 1839 .Case("c", InputKind::C) 1840 .Case("cl", InputKind::OpenCL) 1841 .Case("cuda", InputKind::CUDA) 1842 .Case("hip", InputKind::HIP) 1843 .Case("c++", InputKind::CXX) 1844 .Case("objective-c", InputKind::ObjC) 1845 .Case("objective-c++", InputKind::ObjCXX) 1846 .Case("renderscript", InputKind::RenderScript) 1847 .Default(InputKind::Unknown); 1848 1849 // "objc[++]-cpp-output" is an acceptable synonym for 1850 // "objective-c[++]-cpp-output". 1851 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1852 DashX = llvm::StringSwitch<InputKind>(XValue) 1853 .Case("objc", InputKind::ObjC) 1854 .Case("objc++", InputKind::ObjCXX) 1855 .Default(InputKind::Unknown); 1856 1857 // Some special cases cannot be combined with suffixes. 1858 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1859 DashX = llvm::StringSwitch<InputKind>(XValue) 1860 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1861 .Case("assembler-with-cpp", InputKind::Asm) 1862 .Cases("ast", "pcm", 1863 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1864 .Case("ir", InputKind::LLVM_IR) 1865 .Default(InputKind::Unknown); 1866 1867 if (DashX.isUnknown()) 1868 Diags.Report(diag::err_drv_invalid_value) 1869 << A->getAsString(Args) << A->getValue(); 1870 1871 if (Preprocessed) 1872 DashX = DashX.getPreprocessed(); 1873 if (ModuleMap) 1874 DashX = DashX.withFormat(InputKind::ModuleMap); 1875 } 1876 1877 // '-' is the default input if none is given. 1878 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1879 Opts.Inputs.clear(); 1880 if (Inputs.empty()) 1881 Inputs.push_back("-"); 1882 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1883 InputKind IK = DashX; 1884 if (IK.isUnknown()) { 1885 IK = FrontendOptions::getInputKindForExtension( 1886 StringRef(Inputs[i]).rsplit('.').second); 1887 // FIXME: Warn on this? 1888 if (IK.isUnknown()) 1889 IK = InputKind::C; 1890 // FIXME: Remove this hack. 1891 if (i == 0) 1892 DashX = IK; 1893 } 1894 1895 // The -emit-module action implicitly takes a module map. 1896 if (Opts.ProgramAction == frontend::GenerateModule && 1897 IK.getFormat() == InputKind::Source) 1898 IK = IK.withFormat(InputKind::ModuleMap); 1899 1900 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1901 } 1902 1903 return DashX; 1904 } 1905 1906 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1907 void *MainAddr) { 1908 std::string ClangExecutable = 1909 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1910 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 1911 } 1912 1913 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1914 const std::string &WorkingDir) { 1915 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1916 Opts.Verbose = Args.hasArg(OPT_v); 1917 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1918 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1919 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1920 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1921 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1922 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1923 1924 // Canonicalize -fmodules-cache-path before storing it. 1925 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1926 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1927 if (WorkingDir.empty()) 1928 llvm::sys::fs::make_absolute(P); 1929 else 1930 llvm::sys::fs::make_absolute(WorkingDir, P); 1931 } 1932 llvm::sys::path::remove_dots(P); 1933 Opts.ModuleCachePath = P.str(); 1934 1935 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1936 // Only the -fmodule-file=<name>=<file> form. 1937 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1938 StringRef Val = A->getValue(); 1939 if (Val.find('=') != StringRef::npos) 1940 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1941 } 1942 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 1943 Opts.AddPrebuiltModulePath(A->getValue()); 1944 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1945 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1946 Opts.ModulesValidateDiagnosticOptions = 1947 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1948 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1949 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1950 Opts.ModuleCachePruneInterval = 1951 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1952 Opts.ModuleCachePruneAfter = 1953 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1954 Opts.ModulesValidateOncePerBuildSession = 1955 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1956 Opts.BuildSessionTimestamp = 1957 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1958 Opts.ModulesValidateSystemHeaders = 1959 Args.hasArg(OPT_fmodules_validate_system_headers); 1960 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1961 Opts.ModuleFormat = A->getValue(); 1962 1963 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1964 StringRef MacroDef = A->getValue(); 1965 Opts.ModulesIgnoreMacros.insert( 1966 llvm::CachedHashString(MacroDef.split('=').first)); 1967 } 1968 1969 // Add -I..., -F..., and -index-header-map options in order. 1970 bool IsIndexHeaderMap = false; 1971 bool IsSysrootSpecified = 1972 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1973 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1974 if (A->getOption().matches(OPT_index_header_map)) { 1975 // -index-header-map applies to the next -I or -F. 1976 IsIndexHeaderMap = true; 1977 continue; 1978 } 1979 1980 frontend::IncludeDirGroup Group = 1981 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1982 1983 bool IsFramework = A->getOption().matches(OPT_F); 1984 std::string Path = A->getValue(); 1985 1986 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1987 SmallString<32> Buffer; 1988 llvm::sys::path::append(Buffer, Opts.Sysroot, 1989 llvm::StringRef(A->getValue()).substr(1)); 1990 Path = Buffer.str(); 1991 } 1992 1993 Opts.AddPath(Path, Group, IsFramework, 1994 /*IgnoreSysroot*/ true); 1995 IsIndexHeaderMap = false; 1996 } 1997 1998 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1999 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2000 for (const auto *A : 2001 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2002 if (A->getOption().matches(OPT_iprefix)) 2003 Prefix = A->getValue(); 2004 else if (A->getOption().matches(OPT_iwithprefix)) 2005 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2006 else 2007 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2008 } 2009 2010 for (const auto *A : Args.filtered(OPT_idirafter)) 2011 Opts.AddPath(A->getValue(), frontend::After, false, true); 2012 for (const auto *A : Args.filtered(OPT_iquote)) 2013 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2014 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2015 Opts.AddPath(A->getValue(), frontend::System, false, 2016 !A->getOption().matches(OPT_iwithsysroot)); 2017 for (const auto *A : Args.filtered(OPT_iframework)) 2018 Opts.AddPath(A->getValue(), frontend::System, true, true); 2019 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2020 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2021 /*IgnoreSysRoot=*/false); 2022 2023 // Add the paths for the various language specific isystem flags. 2024 for (const auto *A : Args.filtered(OPT_c_isystem)) 2025 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2026 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2027 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2028 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2029 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2030 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2031 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2032 2033 // Add the internal paths from a driver that detects standard include paths. 2034 for (const auto *A : 2035 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2036 frontend::IncludeDirGroup Group = frontend::System; 2037 if (A->getOption().matches(OPT_internal_externc_isystem)) 2038 Group = frontend::ExternCSystem; 2039 Opts.AddPath(A->getValue(), Group, false, true); 2040 } 2041 2042 // Add the path prefixes which are implicitly treated as being system headers. 2043 for (const auto *A : 2044 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2045 Opts.AddSystemHeaderPrefix( 2046 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2047 2048 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2049 Opts.AddVFSOverlayFile(A->getValue()); 2050 } 2051 2052 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2053 const llvm::Triple &T, 2054 PreprocessorOptions &PPOpts, 2055 LangStandard::Kind LangStd) { 2056 // Set some properties which depend solely on the input kind; it would be nice 2057 // to move these to the language standard, and have the driver resolve the 2058 // input kind + language standard. 2059 // 2060 // FIXME: Perhaps a better model would be for a single source file to have 2061 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2062 // simultaneously active? 2063 if (IK.getLanguage() == InputKind::Asm) { 2064 Opts.AsmPreprocessor = 1; 2065 } else if (IK.isObjectiveC()) { 2066 Opts.ObjC = 1; 2067 } 2068 2069 if (LangStd == LangStandard::lang_unspecified) { 2070 // Based on the base language, pick one. 2071 switch (IK.getLanguage()) { 2072 case InputKind::Unknown: 2073 case InputKind::LLVM_IR: 2074 llvm_unreachable("Invalid input kind!"); 2075 case InputKind::OpenCL: 2076 LangStd = LangStandard::lang_opencl10; 2077 break; 2078 case InputKind::CUDA: 2079 LangStd = LangStandard::lang_cuda; 2080 break; 2081 case InputKind::Asm: 2082 case InputKind::C: 2083 #if defined(CLANG_DEFAULT_STD_C) 2084 LangStd = CLANG_DEFAULT_STD_C; 2085 #else 2086 // The PS4 uses C99 as the default C standard. 2087 if (T.isPS4()) 2088 LangStd = LangStandard::lang_gnu99; 2089 else 2090 LangStd = LangStandard::lang_gnu11; 2091 #endif 2092 break; 2093 case InputKind::ObjC: 2094 #if defined(CLANG_DEFAULT_STD_C) 2095 LangStd = CLANG_DEFAULT_STD_C; 2096 #else 2097 LangStd = LangStandard::lang_gnu11; 2098 #endif 2099 break; 2100 case InputKind::CXX: 2101 case InputKind::ObjCXX: 2102 #if defined(CLANG_DEFAULT_STD_CXX) 2103 LangStd = CLANG_DEFAULT_STD_CXX; 2104 #else 2105 LangStd = LangStandard::lang_gnucxx14; 2106 #endif 2107 break; 2108 case InputKind::RenderScript: 2109 LangStd = LangStandard::lang_c99; 2110 break; 2111 case InputKind::HIP: 2112 LangStd = LangStandard::lang_hip; 2113 break; 2114 } 2115 } 2116 2117 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2118 Opts.LineComment = Std.hasLineComments(); 2119 Opts.C99 = Std.isC99(); 2120 Opts.C11 = Std.isC11(); 2121 Opts.C17 = Std.isC17(); 2122 Opts.CPlusPlus = Std.isCPlusPlus(); 2123 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2124 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2125 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2126 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2127 Opts.Digraphs = Std.hasDigraphs(); 2128 Opts.GNUMode = Std.isGNUMode(); 2129 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2130 Opts.HexFloats = Std.hasHexFloats(); 2131 Opts.ImplicitInt = Std.hasImplicitInt(); 2132 2133 // Set OpenCL Version. 2134 Opts.OpenCL = Std.isOpenCL(); 2135 if (LangStd == LangStandard::lang_opencl10) 2136 Opts.OpenCLVersion = 100; 2137 else if (LangStd == LangStandard::lang_opencl11) 2138 Opts.OpenCLVersion = 110; 2139 else if (LangStd == LangStandard::lang_opencl12) 2140 Opts.OpenCLVersion = 120; 2141 else if (LangStd == LangStandard::lang_opencl20) 2142 Opts.OpenCLVersion = 200; 2143 else if (LangStd == LangStandard::lang_openclcpp) 2144 Opts.OpenCLCPlusPlusVersion = 100; 2145 2146 // OpenCL has some additional defaults. 2147 if (Opts.OpenCL) { 2148 Opts.AltiVec = 0; 2149 Opts.ZVector = 0; 2150 Opts.LaxVectorConversions = 0; 2151 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2152 Opts.NativeHalfType = 1; 2153 Opts.NativeHalfArgsAndReturns = 1; 2154 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2155 // Include default header file for OpenCL. 2156 if (Opts.IncludeDefaultHeader) { 2157 PPOpts.Includes.push_back("opencl-c.h"); 2158 } 2159 } 2160 2161 Opts.HIP = IK.getLanguage() == InputKind::HIP; 2162 Opts.CUDA = IK.getLanguage() == InputKind::CUDA || Opts.HIP; 2163 if (Opts.CUDA) 2164 // Set default FP_CONTRACT to FAST. 2165 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2166 2167 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 2168 if (Opts.RenderScript) { 2169 Opts.NativeHalfType = 1; 2170 Opts.NativeHalfArgsAndReturns = 1; 2171 } 2172 2173 // OpenCL and C++ both have bool, true, false keywords. 2174 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2175 2176 // OpenCL has half keyword 2177 Opts.Half = Opts.OpenCL; 2178 2179 // C++ has wchar_t keyword. 2180 Opts.WChar = Opts.CPlusPlus; 2181 2182 Opts.GNUKeywords = Opts.GNUMode; 2183 Opts.CXXOperatorNames = Opts.CPlusPlus; 2184 2185 Opts.AlignedAllocation = Opts.CPlusPlus17; 2186 2187 Opts.DollarIdents = !Opts.AsmPreprocessor; 2188 } 2189 2190 /// Attempt to parse a visibility value out of the given argument. 2191 static Visibility parseVisibility(Arg *arg, ArgList &args, 2192 DiagnosticsEngine &diags) { 2193 StringRef value = arg->getValue(); 2194 if (value == "default") { 2195 return DefaultVisibility; 2196 } else if (value == "hidden" || value == "internal") { 2197 return HiddenVisibility; 2198 } else if (value == "protected") { 2199 // FIXME: diagnose if target does not support protected visibility 2200 return ProtectedVisibility; 2201 } 2202 2203 diags.Report(diag::err_drv_invalid_value) 2204 << arg->getAsString(args) << value; 2205 return DefaultVisibility; 2206 } 2207 2208 /// Check if input file kind and language standard are compatible. 2209 static bool IsInputCompatibleWithStandard(InputKind IK, 2210 const LangStandard &S) { 2211 switch (IK.getLanguage()) { 2212 case InputKind::Unknown: 2213 case InputKind::LLVM_IR: 2214 llvm_unreachable("should not parse language flags for this input"); 2215 2216 case InputKind::C: 2217 case InputKind::ObjC: 2218 case InputKind::RenderScript: 2219 return S.getLanguage() == InputKind::C; 2220 2221 case InputKind::OpenCL: 2222 return S.getLanguage() == InputKind::OpenCL; 2223 2224 case InputKind::CXX: 2225 case InputKind::ObjCXX: 2226 return S.getLanguage() == InputKind::CXX; 2227 2228 case InputKind::CUDA: 2229 // FIXME: What -std= values should be permitted for CUDA compilations? 2230 return S.getLanguage() == InputKind::CUDA || 2231 S.getLanguage() == InputKind::CXX; 2232 2233 case InputKind::HIP: 2234 return S.getLanguage() == InputKind::CXX || 2235 S.getLanguage() == InputKind::HIP; 2236 2237 case InputKind::Asm: 2238 // Accept (and ignore) all -std= values. 2239 // FIXME: The -std= value is not ignored; it affects the tokenization 2240 // and preprocessing rules if we're preprocessing this asm input. 2241 return true; 2242 } 2243 2244 llvm_unreachable("unexpected input language"); 2245 } 2246 2247 /// Get language name for given input kind. 2248 static const StringRef GetInputKindName(InputKind IK) { 2249 switch (IK.getLanguage()) { 2250 case InputKind::C: 2251 return "C"; 2252 case InputKind::ObjC: 2253 return "Objective-C"; 2254 case InputKind::CXX: 2255 return "C++"; 2256 case InputKind::ObjCXX: 2257 return "Objective-C++"; 2258 case InputKind::OpenCL: 2259 return "OpenCL"; 2260 case InputKind::CUDA: 2261 return "CUDA"; 2262 case InputKind::RenderScript: 2263 return "RenderScript"; 2264 case InputKind::HIP: 2265 return "HIP"; 2266 2267 case InputKind::Asm: 2268 return "Asm"; 2269 case InputKind::LLVM_IR: 2270 return "LLVM IR"; 2271 2272 case InputKind::Unknown: 2273 break; 2274 } 2275 llvm_unreachable("unknown input language"); 2276 } 2277 2278 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2279 const TargetOptions &TargetOpts, 2280 PreprocessorOptions &PPOpts, 2281 DiagnosticsEngine &Diags) { 2282 // FIXME: Cleanup per-file based stuff. 2283 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2284 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2285 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2286 #define LANGSTANDARD(id, name, lang, desc, features) \ 2287 .Case(name, LangStandard::lang_##id) 2288 #define LANGSTANDARD_ALIAS(id, alias) \ 2289 .Case(alias, LangStandard::lang_##id) 2290 #include "clang/Frontend/LangStandards.def" 2291 .Default(LangStandard::lang_unspecified); 2292 if (LangStd == LangStandard::lang_unspecified) { 2293 Diags.Report(diag::err_drv_invalid_value) 2294 << A->getAsString(Args) << A->getValue(); 2295 // Report supported standards with short description. 2296 for (unsigned KindValue = 0; 2297 KindValue != LangStandard::lang_unspecified; 2298 ++KindValue) { 2299 const LangStandard &Std = LangStandard::getLangStandardForKind( 2300 static_cast<LangStandard::Kind>(KindValue)); 2301 if (IsInputCompatibleWithStandard(IK, Std)) { 2302 auto Diag = Diags.Report(diag::note_drv_use_standard); 2303 Diag << Std.getName() << Std.getDescription(); 2304 unsigned NumAliases = 0; 2305 #define LANGSTANDARD(id, name, lang, desc, features) 2306 #define LANGSTANDARD_ALIAS(id, alias) \ 2307 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2308 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2309 #include "clang/Frontend/LangStandards.def" 2310 Diag << NumAliases; 2311 #define LANGSTANDARD(id, name, lang, desc, features) 2312 #define LANGSTANDARD_ALIAS(id, alias) \ 2313 if (KindValue == LangStandard::lang_##id) Diag << alias; 2314 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2315 #include "clang/Frontend/LangStandards.def" 2316 } 2317 } 2318 } else { 2319 // Valid standard, check to make sure language and standard are 2320 // compatible. 2321 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2322 if (!IsInputCompatibleWithStandard(IK, Std)) { 2323 Diags.Report(diag::err_drv_argument_not_allowed_with) 2324 << A->getAsString(Args) << GetInputKindName(IK); 2325 } 2326 } 2327 } 2328 2329 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2330 Opts.DllExportInlines = false; 2331 2332 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2333 StringRef Name = A->getValue(); 2334 if (Name == "full" || Name == "branch") { 2335 Opts.CFProtectionBranch = 1; 2336 } 2337 } 2338 // -cl-std only applies for OpenCL language standards. 2339 // Override the -std option in this case. 2340 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2341 LangStandard::Kind OpenCLLangStd 2342 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2343 .Cases("cl", "CL", LangStandard::lang_opencl10) 2344 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2345 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2346 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2347 .Case("c++", LangStandard::lang_openclcpp) 2348 .Default(LangStandard::lang_unspecified); 2349 2350 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2351 Diags.Report(diag::err_drv_invalid_value) 2352 << A->getAsString(Args) << A->getValue(); 2353 } 2354 else 2355 LangStd = OpenCLLangStd; 2356 } 2357 2358 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2359 2360 llvm::Triple T(TargetOpts.Triple); 2361 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2362 2363 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2364 // This option should be deprecated for CL > 1.0 because 2365 // this option was added for compatibility with OpenCL 1.0. 2366 if (Args.getLastArg(OPT_cl_strict_aliasing) 2367 && Opts.OpenCLVersion > 100) { 2368 Diags.Report(diag::warn_option_invalid_ocl_version) 2369 << Opts.getOpenCLVersionTuple().getAsString() 2370 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2371 } 2372 2373 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2374 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2375 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2376 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2377 // name, as it doesn't seem a useful distinction. 2378 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2379 Opts.GNUKeywords); 2380 2381 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2382 2383 if (Args.hasArg(OPT_fno_operator_names)) 2384 Opts.CXXOperatorNames = 0; 2385 2386 if (Args.hasArg(OPT_fcuda_is_device)) 2387 Opts.CUDAIsDevice = 1; 2388 2389 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2390 Opts.CUDAAllowVariadicFunctions = 1; 2391 2392 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2393 Opts.CUDAHostDeviceConstexpr = 0; 2394 2395 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2396 Opts.CUDADeviceApproxTranscendentals = 1; 2397 2398 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2399 2400 if (Opts.ObjC) { 2401 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2402 StringRef value = arg->getValue(); 2403 if (Opts.ObjCRuntime.tryParse(value)) 2404 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2405 } 2406 2407 if (Args.hasArg(OPT_fobjc_gc_only)) 2408 Opts.setGC(LangOptions::GCOnly); 2409 else if (Args.hasArg(OPT_fobjc_gc)) 2410 Opts.setGC(LangOptions::HybridGC); 2411 else if (Args.hasArg(OPT_fobjc_arc)) { 2412 Opts.ObjCAutoRefCount = 1; 2413 if (!Opts.ObjCRuntime.allowsARC()) 2414 Diags.Report(diag::err_arc_unsupported_on_runtime); 2415 } 2416 2417 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2418 // whether the feature is actually enabled. This is predominantly 2419 // determined by -fobjc-runtime, but we allow it to be overridden 2420 // from the command line for testing purposes. 2421 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2422 Opts.ObjCWeakRuntime = 1; 2423 else 2424 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2425 2426 // ObjCWeak determines whether __weak is actually enabled. 2427 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2428 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2429 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2430 assert(!Opts.ObjCWeak); 2431 } else if (Opts.getGC() != LangOptions::NonGC) { 2432 Diags.Report(diag::err_objc_weak_with_gc); 2433 } else if (!Opts.ObjCWeakRuntime) { 2434 Diags.Report(diag::err_objc_weak_unsupported); 2435 } else { 2436 Opts.ObjCWeak = 1; 2437 } 2438 } else if (Opts.ObjCAutoRefCount) { 2439 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2440 } 2441 2442 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2443 Opts.ObjCInferRelatedResultType = 0; 2444 2445 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2446 Opts.ObjCSubscriptingLegacyRuntime = 2447 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2448 } 2449 2450 if (Args.hasArg(OPT_fgnu89_inline)) { 2451 if (Opts.CPlusPlus) 2452 Diags.Report(diag::err_drv_argument_not_allowed_with) 2453 << "-fgnu89-inline" << GetInputKindName(IK); 2454 else 2455 Opts.GNUInline = 1; 2456 } 2457 2458 if (Args.hasArg(OPT_fapple_kext)) { 2459 if (!Opts.CPlusPlus) 2460 Diags.Report(diag::warn_c_kext); 2461 else 2462 Opts.AppleKext = 1; 2463 } 2464 2465 if (Args.hasArg(OPT_print_ivar_layout)) 2466 Opts.ObjCGCBitmapPrint = 1; 2467 2468 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2469 Opts.NoConstantCFStrings = 1; 2470 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2471 Opts.CFRuntime = 2472 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2473 .Cases("unspecified", "standalone", "objc", 2474 LangOptions::CoreFoundationABI::ObjectiveC) 2475 .Cases("swift", "swift-5.0", 2476 LangOptions::CoreFoundationABI::Swift5_0) 2477 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2478 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2479 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2480 2481 if (Args.hasArg(OPT_fzvector)) 2482 Opts.ZVector = 1; 2483 2484 if (Args.hasArg(OPT_pthread)) 2485 Opts.POSIXThreads = 1; 2486 2487 // The value-visibility mode defaults to "default". 2488 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2489 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2490 } else { 2491 Opts.setValueVisibilityMode(DefaultVisibility); 2492 } 2493 2494 // The type-visibility mode defaults to the value-visibility mode. 2495 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2496 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2497 } else { 2498 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2499 } 2500 2501 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2502 Opts.InlineVisibilityHidden = 1; 2503 2504 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2505 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2506 2507 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2508 Opts.SetVisibilityForExternDecls = 1; 2509 2510 if (Args.hasArg(OPT_ftrapv)) { 2511 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2512 // Set the handler, if one is specified. 2513 Opts.OverflowHandler = 2514 Args.getLastArgValue(OPT_ftrapv_handler); 2515 } 2516 else if (Args.hasArg(OPT_fwrapv)) 2517 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2518 2519 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2520 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2521 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2522 Opts.MSCompatibilityVersion = 0; 2523 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2524 VersionTuple VT; 2525 if (VT.tryParse(A->getValue())) 2526 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2527 << A->getValue(); 2528 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2529 VT.getMinor().getValueOr(0) * 100000 + 2530 VT.getSubminor().getValueOr(0); 2531 } 2532 2533 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2534 // is specified, or -std is set to a conforming mode. 2535 // Trigraphs are disabled by default in c++1z onwards. 2536 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2537 Opts.Trigraphs = 2538 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2539 2540 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2541 OPT_fno_dollars_in_identifiers, 2542 Opts.DollarIdents); 2543 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2544 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2545 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2546 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2547 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2548 Opts.ConstStrings); 2549 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2550 Opts.LaxVectorConversions = 0; 2551 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2552 Opts.ThreadsafeStatics = 0; 2553 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2554 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2555 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2556 2557 // -ffixed-point 2558 Opts.FixedPoint = 2559 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2560 !Opts.CPlusPlus; 2561 Opts.PaddingOnUnsignedFixedPoint = 2562 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2563 OPT_fno_padding_on_unsigned_fixed_point, 2564 /*Default=*/false) && 2565 Opts.FixedPoint; 2566 2567 // Handle exception personalities 2568 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2569 options::OPT_fseh_exceptions, 2570 options::OPT_fdwarf_exceptions); 2571 if (A) { 2572 const Option &Opt = A->getOption(); 2573 llvm::Triple T(TargetOpts.Triple); 2574 if (T.isWindowsMSVCEnvironment()) 2575 Diags.Report(diag::err_fe_invalid_exception_model) 2576 << Opt.getName() << T.str(); 2577 2578 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2579 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2580 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2581 } 2582 2583 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2584 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2585 2586 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2587 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2588 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2589 && Opts.OpenCLVersion == 200); 2590 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2591 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2592 2593 // Enable [[]] attributes in C++11 by default. 2594 Opts.DoubleSquareBracketAttributes = 2595 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2596 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11); 2597 2598 Opts.CPlusPlusModules = Opts.CPlusPlus2a; 2599 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2600 Opts.Modules = 2601 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2602 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2603 Opts.ModulesDeclUse = 2604 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2605 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2606 // enter a different module (eg, when building a header unit). 2607 Opts.ModulesLocalVisibility = 2608 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2609 Opts.CPlusPlusModules; 2610 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2611 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2612 Opts.ModulesSearchAll = Opts.Modules && 2613 !Args.hasArg(OPT_fno_modules_search_all) && 2614 Args.hasArg(OPT_fmodules_search_all); 2615 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2616 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2617 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2618 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2619 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2620 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2621 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2622 .Case("char", 1) 2623 .Case("short", 2) 2624 .Case("int", 4) 2625 .Default(0); 2626 if (Opts.WCharSize == 0) 2627 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2628 } 2629 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2630 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2631 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2632 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2633 if (!Opts.NoBuiltin) 2634 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2635 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2636 Opts.RelaxedTemplateTemplateArgs = 2637 Args.hasArg(OPT_frelaxed_template_template_args); 2638 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2639 Opts.AlignedAllocation = 2640 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2641 Opts.AlignedAllocation); 2642 Opts.AlignedAllocationUnavailable = 2643 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2644 Opts.NewAlignOverride = 2645 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2646 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2647 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2648 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2649 << A->getValue(); 2650 Opts.NewAlignOverride = 0; 2651 } 2652 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2653 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2654 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2655 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2656 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2657 Opts.InstantiationDepth = 2658 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2659 Opts.ArrowDepth = 2660 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2661 Opts.ConstexprCallDepth = 2662 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2663 Opts.ConstexprStepLimit = 2664 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2665 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2666 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2667 Opts.NumLargeByValueCopy = 2668 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2669 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2670 Opts.ObjCConstantStringClass = 2671 Args.getLastArgValue(OPT_fconstant_string_class); 2672 Opts.ObjCDefaultSynthProperties = 2673 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2674 Opts.EncodeExtendedBlockSig = 2675 Args.hasArg(OPT_fencode_extended_block_signature); 2676 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2677 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2678 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2679 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2680 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2681 Opts.ROPI = Args.hasArg(OPT_fropi); 2682 Opts.RWPI = Args.hasArg(OPT_frwpi); 2683 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2684 Opts.Static = Args.hasArg(OPT_static_define); 2685 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2686 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2687 || Args.hasArg(OPT_fdump_record_layouts); 2688 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2689 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2690 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2691 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2692 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2693 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2694 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2695 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2696 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2697 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2698 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2699 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2700 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ); 2701 Opts.CurrentModule = Opts.ModuleName; 2702 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2703 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2704 llvm::sort(Opts.ModuleFeatures); 2705 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2706 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2707 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2708 // is enabled. 2709 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2710 | Opts.NativeHalfArgsAndReturns; 2711 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2712 2713 // __declspec is enabled by default for the PS4 by the driver, and also 2714 // enabled for Microsoft Extensions or Borland Extensions, here. 2715 // 2716 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2717 // CUDA extension. However, it is required for supporting 2718 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2719 // been rewritten in terms of something more generic, remove the Opts.CUDA 2720 // term here. 2721 Opts.DeclSpecKeyword = 2722 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2723 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2724 2725 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2726 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2727 .Case("target", LangOptions::ASMM_Target) 2728 .Case("no", LangOptions::ASMM_Off) 2729 .Case("yes", LangOptions::ASMM_On) 2730 .Default(255)) { 2731 default: 2732 Diags.Report(diag::err_drv_invalid_value) 2733 << "-faddress-space-map-mangling=" << A->getValue(); 2734 break; 2735 case LangOptions::ASMM_Target: 2736 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2737 break; 2738 case LangOptions::ASMM_On: 2739 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2740 break; 2741 case LangOptions::ASMM_Off: 2742 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2743 break; 2744 } 2745 } 2746 2747 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2748 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2749 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2750 A->getValue()) 2751 .Case("single", 2752 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2753 .Case("multiple", 2754 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2755 .Case("virtual", 2756 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2757 .Default(LangOptions::PPTMK_BestCase); 2758 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2759 Diags.Report(diag::err_drv_invalid_value) 2760 << "-fms-memptr-rep=" << A->getValue(); 2761 2762 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2763 } 2764 2765 // Check for MS default calling conventions being specified. 2766 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2767 LangOptions::DefaultCallingConvention DefaultCC = 2768 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2769 .Case("cdecl", LangOptions::DCC_CDecl) 2770 .Case("fastcall", LangOptions::DCC_FastCall) 2771 .Case("stdcall", LangOptions::DCC_StdCall) 2772 .Case("vectorcall", LangOptions::DCC_VectorCall) 2773 .Case("regcall", LangOptions::DCC_RegCall) 2774 .Default(LangOptions::DCC_None); 2775 if (DefaultCC == LangOptions::DCC_None) 2776 Diags.Report(diag::err_drv_invalid_value) 2777 << "-fdefault-calling-conv=" << A->getValue(); 2778 2779 llvm::Triple T(TargetOpts.Triple); 2780 llvm::Triple::ArchType Arch = T.getArch(); 2781 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2782 DefaultCC == LangOptions::DCC_StdCall) && 2783 Arch != llvm::Triple::x86; 2784 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2785 DefaultCC == LangOptions::DCC_RegCall) && 2786 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2787 if (emitError) 2788 Diags.Report(diag::err_drv_argument_not_allowed_with) 2789 << A->getSpelling() << T.getTriple(); 2790 else 2791 Opts.setDefaultCallingConv(DefaultCC); 2792 } 2793 2794 // -mrtd option 2795 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2796 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2797 Diags.Report(diag::err_drv_argument_not_allowed_with) 2798 << A->getSpelling() << "-fdefault-calling-conv"; 2799 else { 2800 llvm::Triple T(TargetOpts.Triple); 2801 if (T.getArch() != llvm::Triple::x86) 2802 Diags.Report(diag::err_drv_argument_not_allowed_with) 2803 << A->getSpelling() << T.getTriple(); 2804 else 2805 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2806 } 2807 } 2808 2809 // Check if -fopenmp is specified. 2810 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2811 // Check if -fopenmp-simd is specified. 2812 bool IsSimdSpecified = 2813 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2814 /*Default=*/false); 2815 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2816 Opts.OpenMPUseTLS = 2817 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2818 Opts.OpenMPIsDevice = 2819 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2820 bool IsTargetSpecified = 2821 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2822 2823 if (Opts.OpenMP || Opts.OpenMPSimd) { 2824 if (int Version = getLastArgIntValue( 2825 Args, OPT_fopenmp_version_EQ, 2826 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 2827 Opts.OpenMP = Version; 2828 else if (IsSimdSpecified || IsTargetSpecified) 2829 Opts.OpenMP = 45; 2830 // Provide diagnostic when a given target is not expected to be an OpenMP 2831 // device or host. 2832 if (!Opts.OpenMPIsDevice) { 2833 switch (T.getArch()) { 2834 default: 2835 break; 2836 // Add unsupported host targets here: 2837 case llvm::Triple::nvptx: 2838 case llvm::Triple::nvptx64: 2839 Diags.Report(diag::err_drv_omp_host_target_not_supported) 2840 << TargetOpts.Triple; 2841 break; 2842 } 2843 } 2844 } 2845 2846 // Set the flag to prevent the implementation from emitting device exception 2847 // handling code for those requiring so. 2848 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 2849 Opts.Exceptions = 0; 2850 Opts.CXXExceptions = 0; 2851 } 2852 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2853 Opts.OpenMPCUDANumSMs = 2854 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 2855 Opts.OpenMPCUDANumSMs, Diags); 2856 Opts.OpenMPCUDABlocksPerSM = 2857 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 2858 Opts.OpenMPCUDABlocksPerSM, Diags); 2859 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 2860 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 2861 Opts.OpenMPCUDAReductionBufNum, Diags); 2862 } 2863 2864 // Prevent auto-widening the representation of loop counters during an 2865 // OpenMP collapse clause. 2866 Opts.OpenMPOptimisticCollapse = 2867 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 2868 2869 // Get the OpenMP target triples if any. 2870 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2871 2872 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2873 llvm::Triple TT(A->getValue(i)); 2874 2875 if (TT.getArch() == llvm::Triple::UnknownArch || 2876 !(TT.getArch() == llvm::Triple::ppc || 2877 TT.getArch() == llvm::Triple::ppc64 || 2878 TT.getArch() == llvm::Triple::ppc64le || 2879 TT.getArch() == llvm::Triple::nvptx || 2880 TT.getArch() == llvm::Triple::nvptx64 || 2881 TT.getArch() == llvm::Triple::x86 || 2882 TT.getArch() == llvm::Triple::x86_64)) 2883 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 2884 else 2885 Opts.OMPTargetTriples.push_back(TT); 2886 } 2887 } 2888 2889 // Get OpenMP host file path if any and report if a non existent file is 2890 // found 2891 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2892 Opts.OMPHostIRFile = A->getValue(); 2893 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2894 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 2895 << Opts.OMPHostIRFile; 2896 } 2897 2898 Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device); 2899 2900 // Set CUDA mode for OpenMP target NVPTX if specified in options 2901 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 2902 Args.hasArg(options::OPT_fopenmp_cuda_mode); 2903 2904 // Set CUDA mode for OpenMP target NVPTX if specified in options 2905 Opts.OpenMPCUDAForceFullRuntime = 2906 Opts.OpenMPIsDevice && T.isNVPTX() && 2907 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 2908 2909 // Record whether the __DEPRECATED define was requested. 2910 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2911 OPT_fno_deprecated_macro, 2912 Opts.Deprecated); 2913 2914 // FIXME: Eliminate this dependency. 2915 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2916 OptSize = getOptimizationLevelSize(Args); 2917 Opts.Optimize = Opt != 0; 2918 Opts.OptimizeSize = OptSize != 0; 2919 2920 // This is the __NO_INLINE__ define, which just depends on things like the 2921 // optimization level and -fno-inline, not actually whether the backend has 2922 // inlining enabled. 2923 Opts.NoInlineDefine = !Opts.Optimize; 2924 if (Arg *InlineArg = Args.getLastArg( 2925 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2926 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2927 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2928 Opts.NoInlineDefine = true; 2929 2930 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2931 Args.hasArg(OPT_cl_fast_relaxed_math); 2932 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2933 Args.hasArg(OPT_cl_finite_math_only) || 2934 Args.hasArg(OPT_cl_fast_relaxed_math); 2935 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2936 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2937 Args.hasArg(OPT_cl_fast_relaxed_math); 2938 2939 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2940 StringRef Val = A->getValue(); 2941 if (Val == "fast") 2942 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2943 else if (Val == "on") 2944 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2945 else if (Val == "off") 2946 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2947 else 2948 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2949 } 2950 2951 Opts.RetainCommentsFromSystemHeaders = 2952 Args.hasArg(OPT_fretain_comments_from_system_headers); 2953 2954 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2955 switch (SSP) { 2956 default: 2957 Diags.Report(diag::err_drv_invalid_value) 2958 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2959 break; 2960 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2961 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2962 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2963 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2964 } 2965 2966 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 2967 StringRef Val = A->getValue(); 2968 if (Val == "uninitialized") 2969 Opts.setTrivialAutoVarInit( 2970 LangOptions::TrivialAutoVarInitKind::Uninitialized); 2971 else if (Val == "zero") 2972 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 2973 else if (Val == "pattern") 2974 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 2975 else 2976 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2977 } 2978 2979 // Parse -fsanitize= arguments. 2980 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2981 Diags, Opts.Sanitize); 2982 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2983 Opts.SanitizeAddressFieldPadding = 2984 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2985 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2986 2987 // -fxray-instrument 2988 Opts.XRayInstrument = 2989 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2990 2991 // -fxray-always-emit-customevents 2992 Opts.XRayAlwaysEmitCustomEvents = 2993 Args.hasFlag(OPT_fxray_always_emit_customevents, 2994 OPT_fnoxray_always_emit_customevents, false); 2995 2996 // -fxray-always-emit-typedevents 2997 Opts.XRayAlwaysEmitTypedEvents = 2998 Args.hasFlag(OPT_fxray_always_emit_typedevents, 2999 OPT_fnoxray_always_emit_customevents, false); 3000 3001 // -fxray-{always,never}-instrument= filenames. 3002 Opts.XRayAlwaysInstrumentFiles = 3003 Args.getAllArgValues(OPT_fxray_always_instrument); 3004 Opts.XRayNeverInstrumentFiles = 3005 Args.getAllArgValues(OPT_fxray_never_instrument); 3006 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3007 3008 // -fforce-emit-vtables 3009 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3010 3011 // -fallow-editor-placeholders 3012 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3013 3014 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3015 3016 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3017 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3018 3019 StringRef Ver = A->getValue(); 3020 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3021 unsigned Major, Minor = 0; 3022 3023 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3024 // y or y.0 (4 <= y <= current version). 3025 if (!VerParts.first.startswith("0") && 3026 !VerParts.first.getAsInteger(10, Major) && 3027 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3028 (Major == 3 ? VerParts.second.size() == 1 && 3029 !VerParts.second.getAsInteger(10, Minor) 3030 : VerParts.first.size() == Ver.size() || 3031 VerParts.second == "0")) { 3032 // Got a valid version number. 3033 if (Major == 3 && Minor <= 8) 3034 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3035 else if (Major <= 4) 3036 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3037 else if (Major <= 6) 3038 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3039 else if (Major <= 7) 3040 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3041 } else if (Ver != "latest") { 3042 Diags.Report(diag::err_drv_invalid_value) 3043 << A->getAsString(Args) << A->getValue(); 3044 } 3045 } 3046 3047 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3048 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3049 } 3050 3051 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3052 switch (Action) { 3053 case frontend::ASTDeclList: 3054 case frontend::ASTDump: 3055 case frontend::ASTPrint: 3056 case frontend::ASTView: 3057 case frontend::EmitAssembly: 3058 case frontend::EmitBC: 3059 case frontend::EmitHTML: 3060 case frontend::EmitLLVM: 3061 case frontend::EmitLLVMOnly: 3062 case frontend::EmitCodeGenOnly: 3063 case frontend::EmitObj: 3064 case frontend::FixIt: 3065 case frontend::GenerateModule: 3066 case frontend::GenerateModuleInterface: 3067 case frontend::GenerateHeaderModule: 3068 case frontend::GeneratePCH: 3069 case frontend::ParseSyntaxOnly: 3070 case frontend::ModuleFileInfo: 3071 case frontend::VerifyPCH: 3072 case frontend::PluginAction: 3073 case frontend::RewriteObjC: 3074 case frontend::RewriteTest: 3075 case frontend::RunAnalysis: 3076 case frontend::TemplightDump: 3077 case frontend::MigrateSource: 3078 return false; 3079 3080 case frontend::DumpCompilerOptions: 3081 case frontend::DumpRawTokens: 3082 case frontend::DumpTokens: 3083 case frontend::InitOnly: 3084 case frontend::PrintPreamble: 3085 case frontend::PrintPreprocessedInput: 3086 case frontend::RewriteMacros: 3087 case frontend::RunPreprocessorOnly: 3088 return true; 3089 } 3090 llvm_unreachable("invalid frontend action"); 3091 } 3092 3093 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3094 DiagnosticsEngine &Diags, 3095 frontend::ActionKind Action) { 3096 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 3097 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3098 Args.hasArg(OPT_pch_through_hdrstop_use); 3099 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3100 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ); 3101 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3102 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3103 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3104 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3105 3106 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3107 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3108 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3109 3110 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3111 StringRef Value(A->getValue()); 3112 size_t Comma = Value.find(','); 3113 unsigned Bytes = 0; 3114 unsigned EndOfLine = 0; 3115 3116 if (Comma == StringRef::npos || 3117 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3118 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3119 Diags.Report(diag::err_drv_preamble_format); 3120 else { 3121 Opts.PrecompiledPreambleBytes.first = Bytes; 3122 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3123 } 3124 } 3125 3126 // Add the __CET__ macro if a CFProtection option is set. 3127 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3128 StringRef Name = A->getValue(); 3129 if (Name == "branch") 3130 Opts.addMacroDef("__CET__=1"); 3131 else if (Name == "return") 3132 Opts.addMacroDef("__CET__=2"); 3133 else if (Name == "full") 3134 Opts.addMacroDef("__CET__=3"); 3135 } 3136 3137 // Add macros from the command line. 3138 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3139 if (A->getOption().matches(OPT_D)) 3140 Opts.addMacroDef(A->getValue()); 3141 else 3142 Opts.addMacroUndef(A->getValue()); 3143 } 3144 3145 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3146 3147 // Add the ordered list of -includes. 3148 for (const auto *A : Args.filtered(OPT_include)) 3149 Opts.Includes.emplace_back(A->getValue()); 3150 3151 for (const auto *A : Args.filtered(OPT_chain_include)) 3152 Opts.ChainedIncludes.emplace_back(A->getValue()); 3153 3154 for (const auto *A : Args.filtered(OPT_remap_file)) { 3155 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3156 3157 if (Split.second.empty()) { 3158 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3159 continue; 3160 } 3161 3162 Opts.addRemappedFile(Split.first, Split.second); 3163 } 3164 3165 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3166 StringRef Name = A->getValue(); 3167 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3168 .Case("libc++", ARCXX_libcxx) 3169 .Case("libstdc++", ARCXX_libstdcxx) 3170 .Case("none", ARCXX_nolib) 3171 .Default(~0U); 3172 if (Library == ~0U) 3173 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3174 else 3175 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3176 } 3177 3178 // Always avoid lexing editor placeholders when we're just running the 3179 // preprocessor as we never want to emit the 3180 // "editor placeholder in source file" error in PP only mode. 3181 if (isStrictlyPreprocessorAction(Action)) 3182 Opts.LexEditorPlaceholders = false; 3183 } 3184 3185 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3186 ArgList &Args, 3187 frontend::ActionKind Action) { 3188 if (isStrictlyPreprocessorAction(Action)) 3189 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3190 else 3191 Opts.ShowCPP = 0; 3192 3193 Opts.ShowComments = Args.hasArg(OPT_C); 3194 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3195 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3196 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3197 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3198 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3199 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3200 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3201 } 3202 3203 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3204 DiagnosticsEngine &Diags) { 3205 Opts.CodeModel = getCodeModel(Args, Diags); 3206 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 3207 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3208 StringRef Value = A->getValue(); 3209 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3210 .Case("default", llvm::EABI::Default) 3211 .Case("4", llvm::EABI::EABI4) 3212 .Case("5", llvm::EABI::EABI5) 3213 .Case("gnu", llvm::EABI::GNU) 3214 .Default(llvm::EABI::Unknown); 3215 if (EABIVersion == llvm::EABI::Unknown) 3216 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3217 << Value; 3218 else 3219 Opts.EABIVersion = EABIVersion; 3220 } 3221 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 3222 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 3223 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3224 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 3225 Opts.Triple = Args.getLastArgValue(OPT_triple); 3226 // Use the default target triple if unspecified. 3227 if (Opts.Triple.empty()) 3228 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3229 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3230 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3231 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3232 Opts.NVPTXUseShortPointers = Args.hasFlag( 3233 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3234 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3235 llvm::VersionTuple Version; 3236 if (Version.tryParse(A->getValue())) 3237 Diags.Report(diag::err_drv_invalid_value) 3238 << A->getAsString(Args) << A->getValue(); 3239 else 3240 Opts.SDKVersion = Version; 3241 } 3242 } 3243 3244 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3245 const char *const *ArgBegin, 3246 const char *const *ArgEnd, 3247 DiagnosticsEngine &Diags) { 3248 bool Success = true; 3249 3250 // Parse the arguments. 3251 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 3252 const unsigned IncludedFlagsBitmask = options::CC1Option; 3253 unsigned MissingArgIndex, MissingArgCount; 3254 InputArgList Args = 3255 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 3256 MissingArgCount, IncludedFlagsBitmask); 3257 LangOptions &LangOpts = *Res.getLangOpts(); 3258 3259 // Check for missing argument error. 3260 if (MissingArgCount) { 3261 Diags.Report(diag::err_drv_missing_argument) 3262 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3263 Success = false; 3264 } 3265 3266 // Issue errors on unknown arguments. 3267 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3268 auto ArgString = A->getAsString(Args); 3269 std::string Nearest; 3270 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3271 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3272 else 3273 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3274 << ArgString << Nearest; 3275 Success = false; 3276 } 3277 3278 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3279 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3280 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3281 Success &= 3282 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3283 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3284 ParseCommentArgs(LangOpts.CommentOpts, Args); 3285 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3286 // FIXME: We shouldn't have to pass the DashX option around here 3287 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3288 LangOpts.IsHeaderFile); 3289 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3290 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3291 Res.getTargetOpts(), Res.getFrontendOpts()); 3292 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3293 Res.getFileSystemOpts().WorkingDir); 3294 llvm::Triple T(Res.getTargetOpts().Triple); 3295 if (DashX.getFormat() == InputKind::Precompiled || 3296 DashX.getLanguage() == InputKind::LLVM_IR) { 3297 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3298 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3299 // what the input type is. 3300 if (Args.hasArg(OPT_fobjc_arc)) 3301 LangOpts.ObjCAutoRefCount = 1; 3302 // PIClevel and PIELevel are needed during code generation and this should be 3303 // set regardless of the input type. 3304 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3305 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3306 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3307 Diags, LangOpts.Sanitize); 3308 } else { 3309 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3310 // FIXME: Should we really be calling this for an InputKind::Asm input? 3311 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3312 Res.getPreprocessorOpts(), Diags); 3313 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3314 LangOpts.ObjCExceptions = 1; 3315 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3316 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3317 // preprocessed input as we don't expect it to be used with -std=libc++ 3318 // anyway. 3319 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3320 } 3321 } 3322 3323 LangOpts.FunctionAlignment = 3324 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3325 3326 if (LangOpts.CUDA) { 3327 // During CUDA device-side compilation, the aux triple is the 3328 // triple used for host compilation. 3329 if (LangOpts.CUDAIsDevice) 3330 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3331 } 3332 3333 // Set the triple of the host for OpenMP device compile. 3334 if (LangOpts.OpenMPIsDevice) 3335 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3336 3337 // FIXME: Override value name discarding when asan or msan is used because the 3338 // backend passes depend on the name of the alloca in order to print out 3339 // names. 3340 Res.getCodeGenOpts().DiscardValueNames &= 3341 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3342 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3343 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3344 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3345 3346 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3347 Res.getFrontendOpts().ProgramAction); 3348 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3349 Res.getFrontendOpts().ProgramAction); 3350 3351 // Turn on -Wspir-compat for SPIR target. 3352 auto Arch = T.getArch(); 3353 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 3354 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3355 } 3356 3357 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3358 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3359 !Res.getLangOpts()->Sanitize.empty()) { 3360 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3361 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3362 } 3363 return Success; 3364 } 3365 3366 std::string CompilerInvocation::getModuleHash() const { 3367 // Note: For QoI reasons, the things we use as a hash here should all be 3368 // dumped via the -module-info flag. 3369 using llvm::hash_code; 3370 using llvm::hash_value; 3371 using llvm::hash_combine; 3372 3373 // Start the signature with the compiler version. 3374 // FIXME: We'd rather use something more cryptographically sound than 3375 // CityHash, but this will do for now. 3376 hash_code code = hash_value(getClangFullRepositoryVersion()); 3377 3378 // Extend the signature with the language options 3379 #define LANGOPT(Name, Bits, Default, Description) \ 3380 code = hash_combine(code, LangOpts->Name); 3381 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3382 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3383 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3384 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3385 #include "clang/Basic/LangOptions.def" 3386 3387 for (StringRef Feature : LangOpts->ModuleFeatures) 3388 code = hash_combine(code, Feature); 3389 3390 // Extend the signature with the target options. 3391 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3392 TargetOpts->ABI); 3393 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3394 code = hash_combine(code, FeatureAsWritten); 3395 3396 // Extend the signature with preprocessor options. 3397 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3398 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3399 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3400 3401 for (const auto &I : getPreprocessorOpts().Macros) { 3402 // If we're supposed to ignore this macro for the purposes of modules, 3403 // don't put it into the hash. 3404 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3405 // Check whether we're ignoring this macro. 3406 StringRef MacroDef = I.first; 3407 if (hsOpts.ModulesIgnoreMacros.count( 3408 llvm::CachedHashString(MacroDef.split('=').first))) 3409 continue; 3410 } 3411 3412 code = hash_combine(code, I.first, I.second); 3413 } 3414 3415 // Extend the signature with the sysroot and other header search options. 3416 code = hash_combine(code, hsOpts.Sysroot, 3417 hsOpts.ModuleFormat, 3418 hsOpts.UseDebugInfo, 3419 hsOpts.UseBuiltinIncludes, 3420 hsOpts.UseStandardSystemIncludes, 3421 hsOpts.UseStandardCXXIncludes, 3422 hsOpts.UseLibcxx, 3423 hsOpts.ModulesValidateDiagnosticOptions); 3424 code = hash_combine(code, hsOpts.ResourceDir); 3425 3426 // Extend the signature with the user build path. 3427 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3428 3429 // Extend the signature with the module file extensions. 3430 const FrontendOptions &frontendOpts = getFrontendOpts(); 3431 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3432 code = ext->hashExtension(code); 3433 } 3434 3435 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3436 // affects the debug info in the PCM. 3437 if (getCodeGenOpts().DebugTypeExtRefs) 3438 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3439 code = hash_combine(code, KeyValue.first, KeyValue.second); 3440 3441 // Extend the signature with the enabled sanitizers, if at least one is 3442 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3443 SanitizerSet SanHash = LangOpts->Sanitize; 3444 SanHash.clear(getPPTransparentSanitizers()); 3445 if (!SanHash.empty()) 3446 code = hash_combine(code, SanHash.Mask); 3447 3448 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3449 } 3450 3451 template<typename IntTy> 3452 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 3453 IntTy Default, 3454 DiagnosticsEngine *Diags) { 3455 IntTy Res = Default; 3456 if (Arg *A = Args.getLastArg(Id)) { 3457 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 3458 if (Diags) 3459 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 3460 << A->getValue(); 3461 } 3462 } 3463 return Res; 3464 } 3465 3466 namespace clang { 3467 3468 // Declared in clang/Frontend/Utils.h. 3469 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 3470 DiagnosticsEngine *Diags) { 3471 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 3472 } 3473 3474 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 3475 uint64_t Default, 3476 DiagnosticsEngine *Diags) { 3477 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 3478 } 3479 3480 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3481 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3482 DiagnosticsEngine &Diags) { 3483 return createVFSFromCompilerInvocation(CI, Diags, 3484 llvm::vfs::getRealFileSystem()); 3485 } 3486 3487 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3488 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3489 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3490 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3491 return BaseFS; 3492 3493 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3494 // earlier vfs files are on the bottom 3495 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3496 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3497 Result->getBufferForFile(File); 3498 if (!Buffer) { 3499 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3500 continue; 3501 } 3502 3503 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3504 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3505 /*DiagContext*/ nullptr, Result); 3506 if (!FS) { 3507 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3508 continue; 3509 } 3510 3511 Result = FS; 3512 } 3513 return Result; 3514 } 3515 3516 } // namespace clang 3517