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.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 289 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 290 Opts.ShouldEmitErrorsOnInvalidConfigValue = 291 /* negated */!llvm::StringSwitch<bool>( 292 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 293 .Case("true", true) 294 .Case("false", false) 295 .Default(false); 296 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 297 298 Opts.visualizeExplodedGraphWithGraphViz = 299 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 300 Opts.DumpExplodedGraphTo = Args.getLastArgValue(OPT_analyzer_dump_egraph); 301 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 302 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 303 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 304 Opts.AnalyzeNestedBlocks = 305 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 306 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 307 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 308 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 309 Opts.maxBlockVisitOnPath = 310 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 311 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 312 Opts.InlineMaxStackDepth = 313 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 314 Opts.InlineMaxStackDepth, Diags); 315 316 Opts.CheckersControlList.clear(); 317 for (const Arg *A : 318 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 319 A->claim(); 320 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 321 // We can have a list of comma separated checker names, e.g: 322 // '-analyzer-checker=cocoa,unix' 323 StringRef checkerList = A->getValue(); 324 SmallVector<StringRef, 4> checkers; 325 checkerList.split(checkers, ","); 326 for (auto checker : checkers) 327 Opts.CheckersControlList.emplace_back(checker, enable); 328 } 329 330 // Go through the analyzer configuration options. 331 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 332 333 // We can have a list of comma separated config names, e.g: 334 // '-analyzer-config key1=val1,key2=val2' 335 StringRef configList = A->getValue(); 336 SmallVector<StringRef, 4> configVals; 337 configList.split(configVals, ","); 338 for (const auto &configVal : configVals) { 339 StringRef key, val; 340 std::tie(key, val) = configVal.split("="); 341 if (val.empty()) { 342 Diags.Report(SourceLocation(), 343 diag::err_analyzer_config_no_value) << configVal; 344 Success = false; 345 break; 346 } 347 if (val.find('=') != StringRef::npos) { 348 Diags.Report(SourceLocation(), 349 diag::err_analyzer_config_multiple_values) 350 << configVal; 351 Success = false; 352 break; 353 } 354 355 // TODO: Check checker options too, possibly in CheckerRegistry. 356 // Leave unknown non-checker configs unclaimed. 357 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 358 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 359 Diags.Report(diag::err_analyzer_config_unknown) << key; 360 continue; 361 } 362 363 A->claim(); 364 Opts.Config[key] = val; 365 } 366 } 367 368 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 369 parseAnalyzerConfigs(Opts, &Diags); 370 else 371 parseAnalyzerConfigs(Opts, nullptr); 372 373 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 374 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 375 if (i != 0) 376 os << " "; 377 os << Args.getArgString(i); 378 } 379 os.flush(); 380 381 return Success; 382 } 383 384 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 385 StringRef OptionName, StringRef DefaultVal) { 386 return Config.insert({OptionName, DefaultVal}).first->second; 387 } 388 389 static void initOption(AnalyzerOptions::ConfigTable &Config, 390 DiagnosticsEngine *Diags, 391 StringRef &OptionField, StringRef Name, 392 StringRef DefaultVal) { 393 // String options may be known to invalid (e.g. if the expected string is a 394 // file name, but the file does not exist), those will have to be checked in 395 // parseConfigs. 396 OptionField = getStringOption(Config, Name, DefaultVal); 397 } 398 399 static void initOption(AnalyzerOptions::ConfigTable &Config, 400 DiagnosticsEngine *Diags, 401 bool &OptionField, StringRef Name, bool DefaultVal) { 402 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 403 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 404 .Case("true", true) 405 .Case("false", false) 406 .Default(None); 407 408 if (!PossiblyInvalidVal) { 409 if (Diags) 410 Diags->Report(diag::err_analyzer_config_invalid_input) 411 << Name << "a boolean"; 412 else 413 OptionField = DefaultVal; 414 } else 415 OptionField = PossiblyInvalidVal.getValue(); 416 } 417 418 static void initOption(AnalyzerOptions::ConfigTable &Config, 419 DiagnosticsEngine *Diags, 420 unsigned &OptionField, StringRef Name, 421 unsigned DefaultVal) { 422 423 OptionField = DefaultVal; 424 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 425 .getAsInteger(10, OptionField); 426 if (Diags && HasFailed) 427 Diags->Report(diag::err_analyzer_config_invalid_input) 428 << Name << "an unsigned"; 429 } 430 431 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 432 DiagnosticsEngine *Diags) { 433 // TODO: There's no need to store the entire configtable, it'd be plenty 434 // enough tostore checker options. 435 436 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 437 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 438 439 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 440 SHALLOW_VAL, DEEP_VAL) \ 441 switch (AnOpts.getUserMode()) { \ 442 case UMK_Shallow: \ 443 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 444 break; \ 445 case UMK_Deep: \ 446 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 447 break; \ 448 } \ 449 450 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 451 #undef ANALYZER_OPTION 452 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 453 454 // At this point, AnalyzerOptions is configured. Let's validate some options. 455 456 if (!Diags) 457 return; 458 459 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 460 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 461 << "a filename"; 462 463 if (!AnOpts.ModelPath.empty() && 464 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 465 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 466 << "a filename"; 467 } 468 469 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 470 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 471 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 472 return true; 473 } 474 475 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 476 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 477 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 478 } 479 480 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 481 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 482 StringRef Value = A->getValue(); 483 if (Value == "small" || Value == "kernel" || Value == "medium" || 484 Value == "large" || Value == "tiny") 485 return Value; 486 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 487 } 488 return "default"; 489 } 490 491 static llvm::Reloc::Model getRelocModel(ArgList &Args, 492 DiagnosticsEngine &Diags) { 493 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 494 StringRef Value = A->getValue(); 495 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 496 .Case("static", llvm::Reloc::Static) 497 .Case("pic", llvm::Reloc::PIC_) 498 .Case("ropi", llvm::Reloc::ROPI) 499 .Case("rwpi", llvm::Reloc::RWPI) 500 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 501 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 502 .Default(None); 503 if (RM.hasValue()) 504 return *RM; 505 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 506 } 507 return llvm::Reloc::PIC_; 508 } 509 510 /// Create a new Regex instance out of the string value in \p RpassArg. 511 /// It returns a pointer to the newly generated Regex instance. 512 static std::shared_ptr<llvm::Regex> 513 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 514 Arg *RpassArg) { 515 StringRef Val = RpassArg->getValue(); 516 std::string RegexError; 517 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 518 if (!Pattern->isValid(RegexError)) { 519 Diags.Report(diag::err_drv_optimization_remark_pattern) 520 << RegexError << RpassArg->getAsString(Args); 521 Pattern.reset(); 522 } 523 return Pattern; 524 } 525 526 static bool parseDiagnosticLevelMask(StringRef FlagName, 527 const std::vector<std::string> &Levels, 528 DiagnosticsEngine *Diags, 529 DiagnosticLevelMask &M) { 530 bool Success = true; 531 for (const auto &Level : Levels) { 532 DiagnosticLevelMask const PM = 533 llvm::StringSwitch<DiagnosticLevelMask>(Level) 534 .Case("note", DiagnosticLevelMask::Note) 535 .Case("remark", DiagnosticLevelMask::Remark) 536 .Case("warning", DiagnosticLevelMask::Warning) 537 .Case("error", DiagnosticLevelMask::Error) 538 .Default(DiagnosticLevelMask::None); 539 if (PM == DiagnosticLevelMask::None) { 540 Success = false; 541 if (Diags) 542 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 543 } 544 M = M | PM; 545 } 546 return Success; 547 } 548 549 static void parseSanitizerKinds(StringRef FlagName, 550 const std::vector<std::string> &Sanitizers, 551 DiagnosticsEngine &Diags, SanitizerSet &S) { 552 for (const auto &Sanitizer : Sanitizers) { 553 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 554 if (K == SanitizerMask()) 555 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 556 else 557 S.set(K, true); 558 } 559 } 560 561 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 562 ArgList &Args, DiagnosticsEngine &D, 563 XRayInstrSet &S) { 564 llvm::SmallVector<StringRef, 2> BundleParts; 565 llvm::SplitString(Bundle, BundleParts, ","); 566 for (const auto B : BundleParts) { 567 auto Mask = parseXRayInstrValue(B); 568 if (Mask == XRayInstrKind::None) 569 if (B != "none") 570 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 571 else 572 S.Mask = Mask; 573 else if (Mask == XRayInstrKind::All) 574 S.Mask = Mask; 575 else 576 S.set(Mask, true); 577 } 578 } 579 580 // Set the profile kind for fprofile-instrument. 581 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 582 DiagnosticsEngine &Diags) { 583 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 584 if (A == nullptr) 585 return; 586 StringRef S = A->getValue(); 587 unsigned I = llvm::StringSwitch<unsigned>(S) 588 .Case("none", CodeGenOptions::ProfileNone) 589 .Case("clang", CodeGenOptions::ProfileClangInstr) 590 .Case("llvm", CodeGenOptions::ProfileIRInstr) 591 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 592 .Default(~0U); 593 if (I == ~0U) { 594 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 595 << S; 596 return; 597 } 598 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 599 Opts.setProfileInstr(Instrumentor); 600 } 601 602 // Set the profile kind using fprofile-instrument-use-path. 603 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 604 const Twine &ProfileName) { 605 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 606 // In error, return silently and let Clang PGOUse report the error message. 607 if (auto E = ReaderOrErr.takeError()) { 608 llvm::consumeError(std::move(E)); 609 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 610 return; 611 } 612 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 613 std::move(ReaderOrErr.get()); 614 if (PGOReader->isIRLevelProfile()) { 615 if (PGOReader->hasCSIRLevelProfile()) 616 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 617 else 618 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 619 } else 620 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 621 } 622 623 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 624 DiagnosticsEngine &Diags, 625 const TargetOptions &TargetOpts, 626 const FrontendOptions &FrontendOpts) { 627 bool Success = true; 628 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 629 630 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 631 // TODO: This could be done in Driver 632 unsigned MaxOptLevel = 3; 633 if (OptimizationLevel > MaxOptLevel) { 634 // If the optimization level is not supported, fall back on the default 635 // optimization 636 Diags.Report(diag::warn_drv_optimization_value) 637 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 638 OptimizationLevel = MaxOptLevel; 639 } 640 Opts.OptimizationLevel = OptimizationLevel; 641 642 // At O0 we want to fully disable inlining outside of cases marked with 643 // 'alwaysinline' that are required for correctness. 644 Opts.setInlining((Opts.OptimizationLevel == 0) 645 ? CodeGenOptions::OnlyAlwaysInlining 646 : CodeGenOptions::NormalInlining); 647 // Explicit inlining flags can disable some or all inlining even at 648 // optimization levels above zero. 649 if (Arg *InlineArg = Args.getLastArg( 650 options::OPT_finline_functions, options::OPT_finline_hint_functions, 651 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 652 if (Opts.OptimizationLevel > 0) { 653 const Option &InlineOpt = InlineArg->getOption(); 654 if (InlineOpt.matches(options::OPT_finline_functions)) 655 Opts.setInlining(CodeGenOptions::NormalInlining); 656 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 657 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 658 else 659 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 660 } 661 } 662 663 Opts.ExperimentalNewPassManager = Args.hasFlag( 664 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 665 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 666 667 Opts.DebugPassManager = 668 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 669 /* Default */ false); 670 671 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 672 StringRef Name = A->getValue(); 673 if (Name == "Accelerate") 674 Opts.setVecLib(CodeGenOptions::Accelerate); 675 else if (Name == "SVML") 676 Opts.setVecLib(CodeGenOptions::SVML); 677 else if (Name == "none") 678 Opts.setVecLib(CodeGenOptions::NoLibrary); 679 else 680 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 681 } 682 683 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 684 unsigned Val = 685 llvm::StringSwitch<unsigned>(A->getValue()) 686 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 687 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 688 .Case("limited", codegenoptions::LimitedDebugInfo) 689 .Case("standalone", codegenoptions::FullDebugInfo) 690 .Default(~0U); 691 if (Val == ~0U) 692 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 693 << A->getValue(); 694 else 695 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 696 } 697 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 698 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 699 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 700 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 701 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 702 .Default(~0U); 703 if (Val == ~0U) 704 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 705 << A->getValue(); 706 else 707 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 708 } 709 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 710 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 711 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 712 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 713 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 714 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 715 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 716 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 717 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 718 719 if (Arg *A = 720 Args.getLastArg(OPT_enable_split_dwarf, OPT_enable_split_dwarf_EQ)) { 721 if (A->getOption().matches(options::OPT_enable_split_dwarf)) { 722 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 723 } else { 724 StringRef Name = A->getValue(); 725 if (Name == "single") 726 Opts.setSplitDwarfMode(CodeGenOptions::SingleFileFission); 727 else if (Name == "split") 728 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 729 else 730 Diags.Report(diag::err_drv_invalid_value) 731 << A->getAsString(Args) << Name; 732 } 733 } 734 735 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 736 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 737 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 738 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 739 740 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 741 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 742 743 if (const Arg *A = 744 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 745 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 746 747 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 748 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 749 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 750 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 751 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 752 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 753 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 754 OPT_fuse_register_sized_bitfield_access); 755 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 756 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 757 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 758 Args.hasArg(OPT_new_struct_path_tbaa); 759 Opts.FineGrainedBitfieldAccesses = 760 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 761 OPT_fno_fine_grained_bitfield_accesses, false); 762 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 763 Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line); 764 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 765 Opts.NoCommon = Args.hasArg(OPT_fno_common); 766 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 767 Opts.OptimizeSize = getOptimizationLevelSize(Args); 768 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 769 Args.hasArg(OPT_ffreestanding)); 770 if (Opts.SimplifyLibCalls) 771 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 772 Opts.UnrollLoops = 773 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 774 (Opts.OptimizationLevel > 1)); 775 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 776 777 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 778 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 779 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 780 Opts.DebugInfoForProfiling = Args.hasFlag( 781 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 782 Opts.DebugNameTable = static_cast<unsigned>( 783 Args.hasArg(OPT_ggnu_pubnames) 784 ? llvm::DICompileUnit::DebugNameTableKind::GNU 785 : Args.hasArg(OPT_gpubnames) 786 ? llvm::DICompileUnit::DebugNameTableKind::Default 787 : llvm::DICompileUnit::DebugNameTableKind::None); 788 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 789 790 setPGOInstrumentor(Opts, Args, Diags); 791 Opts.InstrProfileOutput = 792 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 793 Opts.ProfileInstrumentUsePath = 794 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 795 if (!Opts.ProfileInstrumentUsePath.empty()) 796 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 797 Opts.ProfileRemappingFile = 798 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ); 799 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 800 Diags.Report(diag::err_drv_argument_only_allowed_with) 801 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 802 << "-fexperimental-new-pass-manager"; 803 } 804 805 Opts.CoverageMapping = 806 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 807 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 808 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 809 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 810 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 811 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 812 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 813 Opts.RegisterGlobalDtorsWithAtExit = 814 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 815 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 816 Opts.CodeModel = TargetOpts.CodeModel; 817 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 818 Opts.DisableFPElim = 819 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 820 Opts.DisableFree = Args.hasArg(OPT_disable_free); 821 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 822 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 823 Opts.NoEscapingBlockTailCalls = 824 Args.hasArg(OPT_fno_escaping_block_tail_calls); 825 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 826 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 827 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 828 Args.hasArg(OPT_cl_fast_relaxed_math); 829 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 830 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 831 Args.hasArg(OPT_cl_finite_math_only) || 832 Args.hasArg(OPT_cl_fast_relaxed_math)); 833 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 834 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 835 Args.hasArg(OPT_cl_finite_math_only) || 836 Args.hasArg(OPT_cl_fast_relaxed_math)); 837 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 838 Args.hasArg(OPT_cl_no_signed_zeros) || 839 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 840 Args.hasArg(OPT_cl_fast_relaxed_math)); 841 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 842 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) || 843 (Args.hasArg(OPT_fcuda_is_device) && 844 Args.hasArg(OPT_fcuda_flush_denormals_to_zero)); 845 Opts.CorrectlyRoundedDivSqrt = 846 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 847 Opts.UniformWGSize = 848 Args.hasArg(OPT_cl_uniform_work_group_size); 849 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 850 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 851 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 852 Opts.StrictFloatCastOverflow = 853 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 854 855 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 856 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 857 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 858 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 859 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 860 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 861 Opts.IncrementalLinkerCompatible = 862 Args.hasArg(OPT_mincremental_linker_compatible); 863 Opts.PIECopyRelocations = 864 Args.hasArg(OPT_mpie_copy_relocations); 865 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 866 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 867 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 868 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 869 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 870 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 871 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 872 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 873 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 874 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 875 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 876 Args.hasArg(OPT_cl_fast_relaxed_math); 877 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 878 Opts.RelocationModel = getRelocModel(Args, Diags); 879 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 880 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 881 Diags.Report(diag::err_drv_invalid_value) 882 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 883 << Opts.ThreadModel; 884 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 885 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 886 887 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 888 OPT_fno_function_sections, false); 889 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 890 OPT_fno_data_sections, false); 891 Opts.StackSizeSection = 892 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 893 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 894 OPT_fno_unique_section_names, true); 895 896 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 897 898 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 899 900 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 901 902 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 903 904 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 905 Opts.PrepareForThinLTO = false; 906 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 907 StringRef S = A->getValue(); 908 if (S == "thin") 909 Opts.PrepareForThinLTO = true; 910 else if (S != "full") 911 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 912 } 913 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 914 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 915 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 916 if (IK.getLanguage() != InputKind::LLVM_IR) 917 Diags.Report(diag::err_drv_argument_only_allowed_with) 918 << A->getAsString(Args) << "-x ir"; 919 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 920 } 921 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 922 Opts.SaveTempsFilePrefix = 923 llvm::StringSwitch<std::string>(A->getValue()) 924 .Case("obj", FrontendOpts.OutputFile) 925 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 926 927 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 928 929 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 930 931 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 932 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 933 934 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 935 936 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 937 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 938 939 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 940 941 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 942 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 943 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 944 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 945 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 946 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 947 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 948 Opts.CoverageNoFunctionNamesInData = 949 Args.hasArg(OPT_coverage_no_function_names_in_data); 950 Opts.ProfileFilterFiles = 951 Args.getLastArgValue(OPT_fprofile_filter_files_EQ); 952 Opts.ProfileExcludeFiles = 953 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ); 954 Opts.CoverageExitBlockBeforeBody = 955 Args.hasArg(OPT_coverage_exit_block_before_body); 956 if (Args.hasArg(OPT_coverage_version_EQ)) { 957 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 958 if (CoverageVersion.size() != 4) { 959 Diags.Report(diag::err_drv_invalid_value) 960 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 961 << CoverageVersion; 962 } else { 963 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 964 } 965 } 966 } 967 // Handle -fembed-bitcode option. 968 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 969 StringRef Name = A->getValue(); 970 unsigned Model = llvm::StringSwitch<unsigned>(Name) 971 .Case("off", CodeGenOptions::Embed_Off) 972 .Case("all", CodeGenOptions::Embed_All) 973 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 974 .Case("marker", CodeGenOptions::Embed_Marker) 975 .Default(~0U); 976 if (Model == ~0U) { 977 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 978 Success = false; 979 } else 980 Opts.setEmbedBitcode( 981 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 982 } 983 // FIXME: For backend options that are not yet recorded as function 984 // attributes in the IR, keep track of them so we can embed them in a 985 // separate data section and use them when building the bitcode. 986 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 987 for (const auto &A : Args) { 988 // Do not encode output and input. 989 if (A->getOption().getID() == options::OPT_o || 990 A->getOption().getID() == options::OPT_INPUT || 991 A->getOption().getID() == options::OPT_x || 992 A->getOption().getID() == options::OPT_fembed_bitcode || 993 (A->getOption().getGroup().isValid() && 994 A->getOption().getGroup().getID() == options::OPT_W_Group)) 995 continue; 996 ArgStringList ASL; 997 A->render(Args, ASL); 998 for (const auto &arg : ASL) { 999 StringRef ArgStr(arg); 1000 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1001 // using \00 to separate each commandline options. 1002 Opts.CmdArgs.push_back('\0'); 1003 } 1004 } 1005 } 1006 1007 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1008 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1009 Opts.InstrumentFunctionsAfterInlining = 1010 Args.hasArg(OPT_finstrument_functions_after_inlining); 1011 Opts.InstrumentFunctionEntryBare = 1012 Args.hasArg(OPT_finstrument_function_entry_bare); 1013 1014 Opts.XRayInstrumentFunctions = 1015 Args.hasArg(OPT_fxray_instrument); 1016 Opts.XRayAlwaysEmitCustomEvents = 1017 Args.hasArg(OPT_fxray_always_emit_customevents); 1018 Opts.XRayAlwaysEmitTypedEvents = 1019 Args.hasArg(OPT_fxray_always_emit_typedevents); 1020 Opts.XRayInstructionThreshold = 1021 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1022 1023 auto XRayInstrBundles = 1024 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1025 if (XRayInstrBundles.empty()) 1026 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1027 else 1028 for (const auto &A : XRayInstrBundles) 1029 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1030 Diags, Opts.XRayInstrumentationBundle); 1031 1032 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1033 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1034 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1035 1036 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1037 StringRef Name = A->getValue(); 1038 if (Name == "full") { 1039 Opts.CFProtectionReturn = 1; 1040 Opts.CFProtectionBranch = 1; 1041 } else if (Name == "return") 1042 Opts.CFProtectionReturn = 1; 1043 else if (Name == "branch") 1044 Opts.CFProtectionBranch = 1; 1045 else if (Name != "none") { 1046 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1047 Success = false; 1048 } 1049 } 1050 1051 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1052 OPT_compress_debug_sections_EQ)) { 1053 if (A->getOption().getID() == OPT_compress_debug_sections) { 1054 // TODO: be more clever about the compression type auto-detection 1055 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1056 } else { 1057 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1058 .Case("none", llvm::DebugCompressionType::None) 1059 .Case("zlib", llvm::DebugCompressionType::Z) 1060 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1061 .Default(llvm::DebugCompressionType::None); 1062 Opts.setCompressDebugSections(DCT); 1063 } 1064 } 1065 1066 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1067 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1068 for (auto *A : 1069 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1070 CodeGenOptions::BitcodeFileToLink F; 1071 F.Filename = A->getValue(); 1072 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1073 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1074 // When linking CUDA bitcode, propagate function attributes so that 1075 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1076 F.PropagateAttrs = true; 1077 F.Internalize = true; 1078 } 1079 Opts.LinkBitcodeFiles.push_back(F); 1080 } 1081 Opts.SanitizeCoverageType = 1082 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1083 Opts.SanitizeCoverageIndirectCalls = 1084 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1085 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1086 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1087 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1088 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1089 Opts.SanitizeCoverage8bitCounters = 1090 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1091 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1092 Opts.SanitizeCoverageTracePCGuard = 1093 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1094 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1095 Opts.SanitizeCoverageInline8bitCounters = 1096 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1097 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1098 Opts.SanitizeCoverageStackDepth = 1099 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1100 Opts.SanitizeMemoryTrackOrigins = 1101 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1102 Opts.SanitizeMemoryUseAfterDtor = 1103 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1104 OPT_fno_sanitize_memory_use_after_dtor, 1105 false); 1106 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1107 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1108 Opts.SanitizeCfiICallGeneralizePointers = 1109 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1110 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1111 if (Arg *A = Args.getLastArg( 1112 OPT_fsanitize_address_poison_custom_array_cookie, 1113 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1114 Opts.SanitizeAddressPoisonCustomArrayCookie = 1115 A->getOption().getID() == 1116 OPT_fsanitize_address_poison_custom_array_cookie; 1117 } 1118 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1119 OPT_fno_sanitize_address_use_after_scope)) { 1120 Opts.SanitizeAddressUseAfterScope = 1121 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1122 } 1123 Opts.SanitizeAddressGlobalsDeadStripping = 1124 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1125 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1126 OPT_fno_sanitize_address_use_odr_indicator)) { 1127 Opts.SanitizeAddressUseOdrIndicator = 1128 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1129 } 1130 Opts.SSPBufferSize = 1131 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1132 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1133 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1134 StringRef Val = A->getValue(); 1135 unsigned StackAlignment = Opts.StackAlignment; 1136 Val.getAsInteger(10, StackAlignment); 1137 Opts.StackAlignment = StackAlignment; 1138 } 1139 1140 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1141 StringRef Val = A->getValue(); 1142 unsigned StackProbeSize = Opts.StackProbeSize; 1143 Val.getAsInteger(0, StackProbeSize); 1144 Opts.StackProbeSize = StackProbeSize; 1145 } 1146 1147 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1148 1149 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1150 StringRef Name = A->getValue(); 1151 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1152 .Case("legacy", CodeGenOptions::Legacy) 1153 .Case("non-legacy", CodeGenOptions::NonLegacy) 1154 .Case("mixed", CodeGenOptions::Mixed) 1155 .Default(~0U); 1156 if (Method == ~0U) { 1157 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1158 Success = false; 1159 } else { 1160 Opts.setObjCDispatchMethod( 1161 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1162 } 1163 } 1164 1165 1166 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1167 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1168 1169 if (Args.getLastArg(OPT_femulated_tls) || 1170 Args.getLastArg(OPT_fno_emulated_tls)) { 1171 Opts.ExplicitEmulatedTLS = true; 1172 Opts.EmulatedTLS = 1173 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1174 } 1175 1176 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1177 StringRef Name = A->getValue(); 1178 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1179 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1180 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1181 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1182 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1183 .Default(~0U); 1184 if (Model == ~0U) { 1185 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1186 Success = false; 1187 } else { 1188 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1189 } 1190 } 1191 1192 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1193 StringRef Val = A->getValue(); 1194 if (Val == "ieee") 1195 Opts.FPDenormalMode = "ieee"; 1196 else if (Val == "preserve-sign") 1197 Opts.FPDenormalMode = "preserve-sign"; 1198 else if (Val == "positive-zero") 1199 Opts.FPDenormalMode = "positive-zero"; 1200 else 1201 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1202 } 1203 1204 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1205 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1206 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1207 } else { 1208 assert(A->getOption().matches(OPT_freg_struct_return)); 1209 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1210 } 1211 } 1212 1213 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1214 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1215 bool NeedLocTracking = false; 1216 1217 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 1218 if (!Opts.OptRecordFile.empty()) 1219 NeedLocTracking = true; 1220 1221 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1222 Opts.OptimizationRemarkPattern = 1223 GenerateOptimizationRemarkRegex(Diags, Args, A); 1224 NeedLocTracking = true; 1225 } 1226 1227 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1228 Opts.OptimizationRemarkMissedPattern = 1229 GenerateOptimizationRemarkRegex(Diags, Args, A); 1230 NeedLocTracking = true; 1231 } 1232 1233 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1234 Opts.OptimizationRemarkAnalysisPattern = 1235 GenerateOptimizationRemarkRegex(Diags, Args, A); 1236 NeedLocTracking = true; 1237 } 1238 1239 Opts.DiagnosticsWithHotness = 1240 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1241 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1242 bool UsingProfile = UsingSampleProfile || 1243 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1244 1245 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1246 // An IR file will contain PGO as metadata 1247 IK.getLanguage() != InputKind::LLVM_IR) 1248 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1249 << "-fdiagnostics-show-hotness"; 1250 1251 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1252 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1253 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1254 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1255 << "-fdiagnostics-hotness-threshold="; 1256 1257 // If the user requested to use a sample profile for PGO, then the 1258 // backend will need to track source location information so the profile 1259 // can be incorporated into the IR. 1260 if (UsingSampleProfile) 1261 NeedLocTracking = true; 1262 1263 // If the user requested a flag that requires source locations available in 1264 // the backend, make sure that the backend tracks source location information. 1265 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1266 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1267 1268 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1269 1270 // Parse -fsanitize-recover= arguments. 1271 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1272 parseSanitizerKinds("-fsanitize-recover=", 1273 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1274 Opts.SanitizeRecover); 1275 parseSanitizerKinds("-fsanitize-trap=", 1276 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1277 Opts.SanitizeTrap); 1278 1279 Opts.CudaGpuBinaryFileName = 1280 Args.getLastArgValue(OPT_fcuda_include_gpubinary); 1281 1282 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1283 1284 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1285 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1286 1287 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1288 1289 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1290 1291 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1292 StringRef SignScope = A->getValue(); 1293 1294 if (SignScope.equals_lower("none")) 1295 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1296 else if (SignScope.equals_lower("all")) 1297 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1298 else if (SignScope.equals_lower("non-leaf")) 1299 Opts.setSignReturnAddress( 1300 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1301 else 1302 Diags.Report(diag::err_drv_invalid_value) 1303 << A->getAsString(Args) << SignScope; 1304 1305 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1306 StringRef SignKey = A->getValue(); 1307 if (!SignScope.empty() && !SignKey.empty()) { 1308 if (SignKey.equals_lower("a_key")) 1309 Opts.setSignReturnAddressKey( 1310 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1311 else if (SignKey.equals_lower("b_key")) 1312 Opts.setSignReturnAddressKey( 1313 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1314 else 1315 Diags.Report(diag::err_drv_invalid_value) 1316 << A->getAsString(Args) << SignKey; 1317 } 1318 } 1319 } 1320 1321 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1322 1323 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1324 1325 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1326 1327 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1328 1329 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1330 1331 return Success; 1332 } 1333 1334 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1335 ArgList &Args) { 1336 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1337 Opts.Targets = Args.getAllArgValues(OPT_MT); 1338 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1339 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1340 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1341 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1342 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1343 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1344 if (Args.hasArg(OPT_show_includes)) { 1345 // Writing both /showIncludes and preprocessor output to stdout 1346 // would produce interleaved output, so use stderr for /showIncludes. 1347 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1348 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1349 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1350 else 1351 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1352 } else { 1353 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1354 } 1355 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1356 Opts.ModuleDependencyOutputDir = 1357 Args.getLastArgValue(OPT_module_dependency_dir); 1358 if (Args.hasArg(OPT_MV)) 1359 Opts.OutputFormat = DependencyOutputFormat::NMake; 1360 // Add sanitizer blacklists as extra dependencies. 1361 // They won't be discovered by the regular preprocessor, so 1362 // we let make / ninja to know about this implicit dependency. 1363 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1364 // Only the -fmodule-file=<file> form. 1365 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1366 StringRef Val = A->getValue(); 1367 if (Val.find('=') == StringRef::npos) 1368 Opts.ExtraDeps.push_back(Val); 1369 } 1370 } 1371 1372 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1373 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1374 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1375 // Support both clang's -f[no-]color-diagnostics and gcc's 1376 // -f[no-]diagnostics-colors[=never|always|auto]. 1377 enum { 1378 Colors_On, 1379 Colors_Off, 1380 Colors_Auto 1381 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1382 for (auto *A : Args) { 1383 const Option &O = A->getOption(); 1384 if (O.matches(options::OPT_fcolor_diagnostics) || 1385 O.matches(options::OPT_fdiagnostics_color)) { 1386 ShowColors = Colors_On; 1387 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1388 O.matches(options::OPT_fno_diagnostics_color)) { 1389 ShowColors = Colors_Off; 1390 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1391 StringRef Value(A->getValue()); 1392 if (Value == "always") 1393 ShowColors = Colors_On; 1394 else if (Value == "never") 1395 ShowColors = Colors_Off; 1396 else if (Value == "auto") 1397 ShowColors = Colors_Auto; 1398 } 1399 } 1400 return ShowColors == Colors_On || 1401 (ShowColors == Colors_Auto && 1402 llvm::sys::Process::StandardErrHasColors()); 1403 } 1404 1405 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1406 DiagnosticsEngine *Diags) { 1407 bool Success = true; 1408 for (const auto &Prefix : VerifyPrefixes) { 1409 // Every prefix must start with a letter and contain only alphanumeric 1410 // characters, hyphens, and underscores. 1411 auto BadChar = std::find_if(Prefix.begin(), Prefix.end(), 1412 [](char C){return !isAlphanumeric(C) 1413 && C != '-' && C != '_';}); 1414 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1415 Success = false; 1416 if (Diags) { 1417 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1418 Diags->Report(diag::note_drv_verify_prefix_spelling); 1419 } 1420 } 1421 } 1422 return Success; 1423 } 1424 1425 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1426 DiagnosticsEngine *Diags, 1427 bool DefaultDiagColor, bool DefaultShowOpt) { 1428 bool Success = true; 1429 1430 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1431 if (Arg *A = 1432 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1433 Opts.DiagnosticSerializationFile = A->getValue(); 1434 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1435 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1436 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1437 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1438 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1439 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1440 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1441 OPT_fno_show_column, 1442 /*Default=*/true); 1443 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1444 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1445 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1446 Opts.ShowOptionNames = 1447 Args.hasFlag(OPT_fdiagnostics_show_option, 1448 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1449 1450 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1451 1452 // Default behavior is to not to show note include stacks. 1453 Opts.ShowNoteIncludeStack = false; 1454 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1455 OPT_fno_diagnostics_show_note_include_stack)) 1456 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1457 Opts.ShowNoteIncludeStack = true; 1458 1459 StringRef ShowOverloads = 1460 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1461 if (ShowOverloads == "best") 1462 Opts.setShowOverloads(Ovl_Best); 1463 else if (ShowOverloads == "all") 1464 Opts.setShowOverloads(Ovl_All); 1465 else { 1466 Success = false; 1467 if (Diags) 1468 Diags->Report(diag::err_drv_invalid_value) 1469 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1470 << ShowOverloads; 1471 } 1472 1473 StringRef ShowCategory = 1474 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1475 if (ShowCategory == "none") 1476 Opts.ShowCategories = 0; 1477 else if (ShowCategory == "id") 1478 Opts.ShowCategories = 1; 1479 else if (ShowCategory == "name") 1480 Opts.ShowCategories = 2; 1481 else { 1482 Success = false; 1483 if (Diags) 1484 Diags->Report(diag::err_drv_invalid_value) 1485 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1486 << ShowCategory; 1487 } 1488 1489 StringRef Format = 1490 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1491 if (Format == "clang") 1492 Opts.setFormat(DiagnosticOptions::Clang); 1493 else if (Format == "msvc") 1494 Opts.setFormat(DiagnosticOptions::MSVC); 1495 else if (Format == "msvc-fallback") { 1496 Opts.setFormat(DiagnosticOptions::MSVC); 1497 Opts.CLFallbackMode = true; 1498 } else if (Format == "vi") 1499 Opts.setFormat(DiagnosticOptions::Vi); 1500 else { 1501 Success = false; 1502 if (Diags) 1503 Diags->Report(diag::err_drv_invalid_value) 1504 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1505 << Format; 1506 } 1507 1508 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1509 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1510 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1511 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1512 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1513 if (Args.hasArg(OPT_verify)) 1514 Opts.VerifyPrefixes.push_back("expected"); 1515 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1516 // then sort it to prepare for fast lookup using std::binary_search. 1517 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1518 Opts.VerifyDiagnostics = false; 1519 Success = false; 1520 } 1521 else 1522 llvm::sort(Opts.VerifyPrefixes); 1523 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1524 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1525 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1526 Diags, DiagMask); 1527 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1528 DiagMask = DiagnosticLevelMask::All; 1529 Opts.setVerifyIgnoreUnexpected(DiagMask); 1530 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1531 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1532 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1533 Opts.MacroBacktraceLimit = 1534 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1535 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1536 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1537 Args, OPT_ftemplate_backtrace_limit, 1538 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1539 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1540 Args, OPT_fconstexpr_backtrace_limit, 1541 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1542 Opts.SpellCheckingLimit = getLastArgIntValue( 1543 Args, OPT_fspell_checking_limit, 1544 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1545 Opts.SnippetLineLimit = getLastArgIntValue( 1546 Args, OPT_fcaret_diagnostics_max_lines, 1547 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1548 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1549 DiagnosticOptions::DefaultTabStop, Diags); 1550 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1551 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1552 if (Diags) 1553 Diags->Report(diag::warn_ignoring_ftabstop_value) 1554 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1555 } 1556 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1557 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1558 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1559 1560 return Success; 1561 } 1562 1563 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1564 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1565 } 1566 1567 /// Parse the argument to the -ftest-module-file-extension 1568 /// command-line argument. 1569 /// 1570 /// \returns true on error, false on success. 1571 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1572 std::string &BlockName, 1573 unsigned &MajorVersion, 1574 unsigned &MinorVersion, 1575 bool &Hashed, 1576 std::string &UserInfo) { 1577 SmallVector<StringRef, 5> Args; 1578 Arg.split(Args, ':', 5); 1579 if (Args.size() < 5) 1580 return true; 1581 1582 BlockName = Args[0]; 1583 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1584 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1585 if (Args[3].getAsInteger(2, Hashed)) return true; 1586 if (Args.size() > 4) 1587 UserInfo = Args[4]; 1588 return false; 1589 } 1590 1591 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1592 DiagnosticsEngine &Diags, 1593 bool &IsHeaderFile) { 1594 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1595 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1596 switch (A->getOption().getID()) { 1597 default: 1598 llvm_unreachable("Invalid option in group!"); 1599 case OPT_ast_list: 1600 Opts.ProgramAction = frontend::ASTDeclList; break; 1601 case OPT_ast_dump: 1602 case OPT_ast_dump_all: 1603 case OPT_ast_dump_lookups: 1604 Opts.ProgramAction = frontend::ASTDump; break; 1605 case OPT_ast_print: 1606 Opts.ProgramAction = frontend::ASTPrint; break; 1607 case OPT_ast_view: 1608 Opts.ProgramAction = frontend::ASTView; break; 1609 case OPT_compiler_options_dump: 1610 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1611 case OPT_dump_raw_tokens: 1612 Opts.ProgramAction = frontend::DumpRawTokens; break; 1613 case OPT_dump_tokens: 1614 Opts.ProgramAction = frontend::DumpTokens; break; 1615 case OPT_S: 1616 Opts.ProgramAction = frontend::EmitAssembly; break; 1617 case OPT_emit_llvm_bc: 1618 Opts.ProgramAction = frontend::EmitBC; break; 1619 case OPT_emit_html: 1620 Opts.ProgramAction = frontend::EmitHTML; break; 1621 case OPT_emit_llvm: 1622 Opts.ProgramAction = frontend::EmitLLVM; break; 1623 case OPT_emit_llvm_only: 1624 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1625 case OPT_emit_codegen_only: 1626 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1627 case OPT_emit_obj: 1628 Opts.ProgramAction = frontend::EmitObj; break; 1629 case OPT_fixit_EQ: 1630 Opts.FixItSuffix = A->getValue(); 1631 LLVM_FALLTHROUGH; 1632 case OPT_fixit: 1633 Opts.ProgramAction = frontend::FixIt; break; 1634 case OPT_emit_module: 1635 Opts.ProgramAction = frontend::GenerateModule; break; 1636 case OPT_emit_module_interface: 1637 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1638 case OPT_emit_header_module: 1639 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1640 case OPT_emit_pch: 1641 Opts.ProgramAction = frontend::GeneratePCH; break; 1642 case OPT_init_only: 1643 Opts.ProgramAction = frontend::InitOnly; break; 1644 case OPT_fsyntax_only: 1645 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1646 case OPT_module_file_info: 1647 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1648 case OPT_verify_pch: 1649 Opts.ProgramAction = frontend::VerifyPCH; break; 1650 case OPT_print_preamble: 1651 Opts.ProgramAction = frontend::PrintPreamble; break; 1652 case OPT_E: 1653 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1654 case OPT_templight_dump: 1655 Opts.ProgramAction = frontend::TemplightDump; break; 1656 case OPT_rewrite_macros: 1657 Opts.ProgramAction = frontend::RewriteMacros; break; 1658 case OPT_rewrite_objc: 1659 Opts.ProgramAction = frontend::RewriteObjC; break; 1660 case OPT_rewrite_test: 1661 Opts.ProgramAction = frontend::RewriteTest; break; 1662 case OPT_analyze: 1663 Opts.ProgramAction = frontend::RunAnalysis; break; 1664 case OPT_migrate: 1665 Opts.ProgramAction = frontend::MigrateSource; break; 1666 case OPT_Eonly: 1667 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1668 } 1669 } 1670 1671 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1672 Opts.Plugins.emplace_back(A->getValue(0)); 1673 Opts.ProgramAction = frontend::PluginAction; 1674 Opts.ActionName = A->getValue(); 1675 } 1676 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1677 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1678 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1679 1680 for (const std::string &Arg : 1681 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1682 std::string BlockName; 1683 unsigned MajorVersion; 1684 unsigned MinorVersion; 1685 bool Hashed; 1686 std::string UserInfo; 1687 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1688 MinorVersion, Hashed, UserInfo)) { 1689 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1690 1691 continue; 1692 } 1693 1694 // Add the testing module file extension. 1695 Opts.ModuleFileExtensions.push_back( 1696 std::make_shared<TestModuleFileExtension>( 1697 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1698 } 1699 1700 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1701 Opts.CodeCompletionAt = 1702 ParsedSourceLocation::FromString(A->getValue()); 1703 if (Opts.CodeCompletionAt.FileName.empty()) 1704 Diags.Report(diag::err_drv_invalid_value) 1705 << A->getAsString(Args) << A->getValue(); 1706 } 1707 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1708 1709 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1710 Opts.Plugins = Args.getAllArgValues(OPT_load); 1711 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1712 Opts.ShowHelp = Args.hasArg(OPT_help); 1713 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1714 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1715 Opts.ShowVersion = Args.hasArg(OPT_version); 1716 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1717 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1718 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1719 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1720 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1721 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1722 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1723 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1724 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1725 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1726 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1727 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1728 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1729 // Only the -fmodule-file=<file> form. 1730 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1731 StringRef Val = A->getValue(); 1732 if (Val.find('=') == StringRef::npos) 1733 Opts.ModuleFiles.push_back(Val); 1734 } 1735 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1736 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1737 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1738 1739 Opts.CodeCompleteOpts.IncludeMacros 1740 = Args.hasArg(OPT_code_completion_macros); 1741 Opts.CodeCompleteOpts.IncludeCodePatterns 1742 = Args.hasArg(OPT_code_completion_patterns); 1743 Opts.CodeCompleteOpts.IncludeGlobals 1744 = !Args.hasArg(OPT_no_code_completion_globals); 1745 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1746 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1747 Opts.CodeCompleteOpts.IncludeBriefComments 1748 = Args.hasArg(OPT_code_completion_brief_comments); 1749 Opts.CodeCompleteOpts.IncludeFixIts 1750 = Args.hasArg(OPT_code_completion_with_fixits); 1751 1752 Opts.OverrideRecordLayoutsFile 1753 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1754 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple); 1755 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1756 1757 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1758 OPT_arcmt_modify, 1759 OPT_arcmt_migrate)) { 1760 switch (A->getOption().getID()) { 1761 default: 1762 llvm_unreachable("missed a case"); 1763 case OPT_arcmt_check: 1764 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1765 break; 1766 case OPT_arcmt_modify: 1767 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1768 break; 1769 case OPT_arcmt_migrate: 1770 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1771 break; 1772 } 1773 } 1774 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1775 Opts.ARCMTMigrateReportOut 1776 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1777 Opts.ARCMTMigrateEmitARCErrors 1778 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1779 1780 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1781 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1782 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1783 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1784 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1785 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1786 if (Args.hasArg(OPT_objcmt_migrate_property)) 1787 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1788 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1789 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1790 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1791 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1792 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1793 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1794 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1795 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1796 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1797 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1798 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1799 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1800 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1801 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1802 if (Args.hasArg(OPT_objcmt_atomic_property)) 1803 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1804 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1805 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1806 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1807 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1808 if (Args.hasArg(OPT_objcmt_migrate_all)) 1809 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1810 1811 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1812 1813 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1814 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1815 Diags.Report(diag::err_drv_argument_not_allowed_with) 1816 << "ARC migration" << "ObjC migration"; 1817 } 1818 1819 InputKind DashX(InputKind::Unknown); 1820 if (const Arg *A = Args.getLastArg(OPT_x)) { 1821 StringRef XValue = A->getValue(); 1822 1823 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1824 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1825 bool Preprocessed = XValue.consume_back("-cpp-output"); 1826 bool ModuleMap = XValue.consume_back("-module-map"); 1827 IsHeaderFile = 1828 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1829 1830 // Principal languages. 1831 DashX = llvm::StringSwitch<InputKind>(XValue) 1832 .Case("c", InputKind::C) 1833 .Case("cl", InputKind::OpenCL) 1834 .Case("cuda", InputKind::CUDA) 1835 .Case("hip", InputKind::HIP) 1836 .Case("c++", InputKind::CXX) 1837 .Case("objective-c", InputKind::ObjC) 1838 .Case("objective-c++", InputKind::ObjCXX) 1839 .Case("renderscript", InputKind::RenderScript) 1840 .Default(InputKind::Unknown); 1841 1842 // "objc[++]-cpp-output" is an acceptable synonym for 1843 // "objective-c[++]-cpp-output". 1844 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1845 DashX = llvm::StringSwitch<InputKind>(XValue) 1846 .Case("objc", InputKind::ObjC) 1847 .Case("objc++", InputKind::ObjCXX) 1848 .Default(InputKind::Unknown); 1849 1850 // Some special cases cannot be combined with suffixes. 1851 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1852 DashX = llvm::StringSwitch<InputKind>(XValue) 1853 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1854 .Case("assembler-with-cpp", InputKind::Asm) 1855 .Cases("ast", "pcm", 1856 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1857 .Case("ir", InputKind::LLVM_IR) 1858 .Default(InputKind::Unknown); 1859 1860 if (DashX.isUnknown()) 1861 Diags.Report(diag::err_drv_invalid_value) 1862 << A->getAsString(Args) << A->getValue(); 1863 1864 if (Preprocessed) 1865 DashX = DashX.getPreprocessed(); 1866 if (ModuleMap) 1867 DashX = DashX.withFormat(InputKind::ModuleMap); 1868 } 1869 1870 // '-' is the default input if none is given. 1871 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1872 Opts.Inputs.clear(); 1873 if (Inputs.empty()) 1874 Inputs.push_back("-"); 1875 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1876 InputKind IK = DashX; 1877 if (IK.isUnknown()) { 1878 IK = FrontendOptions::getInputKindForExtension( 1879 StringRef(Inputs[i]).rsplit('.').second); 1880 // FIXME: Warn on this? 1881 if (IK.isUnknown()) 1882 IK = InputKind::C; 1883 // FIXME: Remove this hack. 1884 if (i == 0) 1885 DashX = IK; 1886 } 1887 1888 // The -emit-module action implicitly takes a module map. 1889 if (Opts.ProgramAction == frontend::GenerateModule && 1890 IK.getFormat() == InputKind::Source) 1891 IK = IK.withFormat(InputKind::ModuleMap); 1892 1893 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1894 } 1895 1896 return DashX; 1897 } 1898 1899 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1900 void *MainAddr) { 1901 std::string ClangExecutable = 1902 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1903 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 1904 } 1905 1906 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1907 const std::string &WorkingDir) { 1908 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1909 Opts.Verbose = Args.hasArg(OPT_v); 1910 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1911 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1912 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1913 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1914 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1915 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1916 1917 // Canonicalize -fmodules-cache-path before storing it. 1918 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1919 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1920 if (WorkingDir.empty()) 1921 llvm::sys::fs::make_absolute(P); 1922 else 1923 llvm::sys::fs::make_absolute(WorkingDir, P); 1924 } 1925 llvm::sys::path::remove_dots(P); 1926 Opts.ModuleCachePath = P.str(); 1927 1928 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1929 // Only the -fmodule-file=<name>=<file> form. 1930 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1931 StringRef Val = A->getValue(); 1932 if (Val.find('=') != StringRef::npos) 1933 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1934 } 1935 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 1936 Opts.AddPrebuiltModulePath(A->getValue()); 1937 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1938 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1939 Opts.ModulesValidateDiagnosticOptions = 1940 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1941 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1942 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1943 Opts.ModuleCachePruneInterval = 1944 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1945 Opts.ModuleCachePruneAfter = 1946 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1947 Opts.ModulesValidateOncePerBuildSession = 1948 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1949 Opts.BuildSessionTimestamp = 1950 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1951 Opts.ModulesValidateSystemHeaders = 1952 Args.hasArg(OPT_fmodules_validate_system_headers); 1953 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1954 Opts.ModuleFormat = A->getValue(); 1955 1956 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1957 StringRef MacroDef = A->getValue(); 1958 Opts.ModulesIgnoreMacros.insert( 1959 llvm::CachedHashString(MacroDef.split('=').first)); 1960 } 1961 1962 // Add -I..., -F..., and -index-header-map options in order. 1963 bool IsIndexHeaderMap = false; 1964 bool IsSysrootSpecified = 1965 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1966 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1967 if (A->getOption().matches(OPT_index_header_map)) { 1968 // -index-header-map applies to the next -I or -F. 1969 IsIndexHeaderMap = true; 1970 continue; 1971 } 1972 1973 frontend::IncludeDirGroup Group = 1974 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1975 1976 bool IsFramework = A->getOption().matches(OPT_F); 1977 std::string Path = A->getValue(); 1978 1979 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1980 SmallString<32> Buffer; 1981 llvm::sys::path::append(Buffer, Opts.Sysroot, 1982 llvm::StringRef(A->getValue()).substr(1)); 1983 Path = Buffer.str(); 1984 } 1985 1986 Opts.AddPath(Path, Group, IsFramework, 1987 /*IgnoreSysroot*/ true); 1988 IsIndexHeaderMap = false; 1989 } 1990 1991 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1992 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1993 for (const auto *A : 1994 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1995 if (A->getOption().matches(OPT_iprefix)) 1996 Prefix = A->getValue(); 1997 else if (A->getOption().matches(OPT_iwithprefix)) 1998 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1999 else 2000 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2001 } 2002 2003 for (const auto *A : Args.filtered(OPT_idirafter)) 2004 Opts.AddPath(A->getValue(), frontend::After, false, true); 2005 for (const auto *A : Args.filtered(OPT_iquote)) 2006 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2007 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2008 Opts.AddPath(A->getValue(), frontend::System, false, 2009 !A->getOption().matches(OPT_iwithsysroot)); 2010 for (const auto *A : Args.filtered(OPT_iframework)) 2011 Opts.AddPath(A->getValue(), frontend::System, true, true); 2012 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2013 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2014 /*IgnoreSysRoot=*/false); 2015 2016 // Add the paths for the various language specific isystem flags. 2017 for (const auto *A : Args.filtered(OPT_c_isystem)) 2018 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2019 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2020 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2021 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2022 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2023 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2024 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2025 2026 // Add the internal paths from a driver that detects standard include paths. 2027 for (const auto *A : 2028 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2029 frontend::IncludeDirGroup Group = frontend::System; 2030 if (A->getOption().matches(OPT_internal_externc_isystem)) 2031 Group = frontend::ExternCSystem; 2032 Opts.AddPath(A->getValue(), Group, false, true); 2033 } 2034 2035 // Add the path prefixes which are implicitly treated as being system headers. 2036 for (const auto *A : 2037 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2038 Opts.AddSystemHeaderPrefix( 2039 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2040 2041 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2042 Opts.AddVFSOverlayFile(A->getValue()); 2043 } 2044 2045 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2046 const llvm::Triple &T, 2047 PreprocessorOptions &PPOpts, 2048 LangStandard::Kind LangStd) { 2049 // Set some properties which depend solely on the input kind; it would be nice 2050 // to move these to the language standard, and have the driver resolve the 2051 // input kind + language standard. 2052 // 2053 // FIXME: Perhaps a better model would be for a single source file to have 2054 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2055 // simultaneously active? 2056 if (IK.getLanguage() == InputKind::Asm) { 2057 Opts.AsmPreprocessor = 1; 2058 } else if (IK.isObjectiveC()) { 2059 Opts.ObjC = 1; 2060 } 2061 2062 if (LangStd == LangStandard::lang_unspecified) { 2063 // Based on the base language, pick one. 2064 switch (IK.getLanguage()) { 2065 case InputKind::Unknown: 2066 case InputKind::LLVM_IR: 2067 llvm_unreachable("Invalid input kind!"); 2068 case InputKind::OpenCL: 2069 LangStd = LangStandard::lang_opencl10; 2070 break; 2071 case InputKind::CUDA: 2072 LangStd = LangStandard::lang_cuda; 2073 break; 2074 case InputKind::Asm: 2075 case InputKind::C: 2076 #if defined(CLANG_DEFAULT_STD_C) 2077 LangStd = CLANG_DEFAULT_STD_C; 2078 #else 2079 // The PS4 uses C99 as the default C standard. 2080 if (T.isPS4()) 2081 LangStd = LangStandard::lang_gnu99; 2082 else 2083 LangStd = LangStandard::lang_gnu11; 2084 #endif 2085 break; 2086 case InputKind::ObjC: 2087 #if defined(CLANG_DEFAULT_STD_C) 2088 LangStd = CLANG_DEFAULT_STD_C; 2089 #else 2090 LangStd = LangStandard::lang_gnu11; 2091 #endif 2092 break; 2093 case InputKind::CXX: 2094 case InputKind::ObjCXX: 2095 #if defined(CLANG_DEFAULT_STD_CXX) 2096 LangStd = CLANG_DEFAULT_STD_CXX; 2097 #else 2098 LangStd = LangStandard::lang_gnucxx14; 2099 #endif 2100 break; 2101 case InputKind::RenderScript: 2102 LangStd = LangStandard::lang_c99; 2103 break; 2104 case InputKind::HIP: 2105 LangStd = LangStandard::lang_hip; 2106 break; 2107 } 2108 } 2109 2110 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2111 Opts.LineComment = Std.hasLineComments(); 2112 Opts.C99 = Std.isC99(); 2113 Opts.C11 = Std.isC11(); 2114 Opts.C17 = Std.isC17(); 2115 Opts.CPlusPlus = Std.isCPlusPlus(); 2116 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2117 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2118 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2119 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2120 Opts.Digraphs = Std.hasDigraphs(); 2121 Opts.GNUMode = Std.isGNUMode(); 2122 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2123 Opts.HexFloats = Std.hasHexFloats(); 2124 Opts.ImplicitInt = Std.hasImplicitInt(); 2125 2126 // Set OpenCL Version. 2127 Opts.OpenCL = Std.isOpenCL(); 2128 if (LangStd == LangStandard::lang_opencl10) 2129 Opts.OpenCLVersion = 100; 2130 else if (LangStd == LangStandard::lang_opencl11) 2131 Opts.OpenCLVersion = 110; 2132 else if (LangStd == LangStandard::lang_opencl12) 2133 Opts.OpenCLVersion = 120; 2134 else if (LangStd == LangStandard::lang_opencl20) 2135 Opts.OpenCLVersion = 200; 2136 else if (LangStd == LangStandard::lang_openclcpp) 2137 Opts.OpenCLCPlusPlusVersion = 100; 2138 2139 // OpenCL has some additional defaults. 2140 if (Opts.OpenCL) { 2141 Opts.AltiVec = 0; 2142 Opts.ZVector = 0; 2143 Opts.LaxVectorConversions = 0; 2144 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2145 Opts.NativeHalfType = 1; 2146 Opts.NativeHalfArgsAndReturns = 1; 2147 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2148 // Include default header file for OpenCL. 2149 if (Opts.IncludeDefaultHeader) { 2150 PPOpts.Includes.push_back("opencl-c.h"); 2151 } 2152 } 2153 2154 Opts.HIP = IK.getLanguage() == InputKind::HIP; 2155 Opts.CUDA = IK.getLanguage() == InputKind::CUDA || Opts.HIP; 2156 if (Opts.CUDA) 2157 // Set default FP_CONTRACT to FAST. 2158 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2159 2160 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 2161 if (Opts.RenderScript) { 2162 Opts.NativeHalfType = 1; 2163 Opts.NativeHalfArgsAndReturns = 1; 2164 } 2165 2166 // OpenCL and C++ both have bool, true, false keywords. 2167 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2168 2169 // OpenCL has half keyword 2170 Opts.Half = Opts.OpenCL; 2171 2172 // C++ has wchar_t keyword. 2173 Opts.WChar = Opts.CPlusPlus; 2174 2175 Opts.GNUKeywords = Opts.GNUMode; 2176 Opts.CXXOperatorNames = Opts.CPlusPlus; 2177 2178 Opts.AlignedAllocation = Opts.CPlusPlus17; 2179 2180 Opts.DollarIdents = !Opts.AsmPreprocessor; 2181 } 2182 2183 /// Attempt to parse a visibility value out of the given argument. 2184 static Visibility parseVisibility(Arg *arg, ArgList &args, 2185 DiagnosticsEngine &diags) { 2186 StringRef value = arg->getValue(); 2187 if (value == "default") { 2188 return DefaultVisibility; 2189 } else if (value == "hidden" || value == "internal") { 2190 return HiddenVisibility; 2191 } else if (value == "protected") { 2192 // FIXME: diagnose if target does not support protected visibility 2193 return ProtectedVisibility; 2194 } 2195 2196 diags.Report(diag::err_drv_invalid_value) 2197 << arg->getAsString(args) << value; 2198 return DefaultVisibility; 2199 } 2200 2201 /// Check if input file kind and language standard are compatible. 2202 static bool IsInputCompatibleWithStandard(InputKind IK, 2203 const LangStandard &S) { 2204 switch (IK.getLanguage()) { 2205 case InputKind::Unknown: 2206 case InputKind::LLVM_IR: 2207 llvm_unreachable("should not parse language flags for this input"); 2208 2209 case InputKind::C: 2210 case InputKind::ObjC: 2211 case InputKind::RenderScript: 2212 return S.getLanguage() == InputKind::C; 2213 2214 case InputKind::OpenCL: 2215 return S.getLanguage() == InputKind::OpenCL; 2216 2217 case InputKind::CXX: 2218 case InputKind::ObjCXX: 2219 return S.getLanguage() == InputKind::CXX; 2220 2221 case InputKind::CUDA: 2222 // FIXME: What -std= values should be permitted for CUDA compilations? 2223 return S.getLanguage() == InputKind::CUDA || 2224 S.getLanguage() == InputKind::CXX; 2225 2226 case InputKind::HIP: 2227 return S.getLanguage() == InputKind::CXX || 2228 S.getLanguage() == InputKind::HIP; 2229 2230 case InputKind::Asm: 2231 // Accept (and ignore) all -std= values. 2232 // FIXME: The -std= value is not ignored; it affects the tokenization 2233 // and preprocessing rules if we're preprocessing this asm input. 2234 return true; 2235 } 2236 2237 llvm_unreachable("unexpected input language"); 2238 } 2239 2240 /// Get language name for given input kind. 2241 static const StringRef GetInputKindName(InputKind IK) { 2242 switch (IK.getLanguage()) { 2243 case InputKind::C: 2244 return "C"; 2245 case InputKind::ObjC: 2246 return "Objective-C"; 2247 case InputKind::CXX: 2248 return "C++"; 2249 case InputKind::ObjCXX: 2250 return "Objective-C++"; 2251 case InputKind::OpenCL: 2252 return "OpenCL"; 2253 case InputKind::CUDA: 2254 return "CUDA"; 2255 case InputKind::RenderScript: 2256 return "RenderScript"; 2257 case InputKind::HIP: 2258 return "HIP"; 2259 2260 case InputKind::Asm: 2261 return "Asm"; 2262 case InputKind::LLVM_IR: 2263 return "LLVM IR"; 2264 2265 case InputKind::Unknown: 2266 break; 2267 } 2268 llvm_unreachable("unknown input language"); 2269 } 2270 2271 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2272 const TargetOptions &TargetOpts, 2273 PreprocessorOptions &PPOpts, 2274 DiagnosticsEngine &Diags) { 2275 // FIXME: Cleanup per-file based stuff. 2276 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2277 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2278 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2279 #define LANGSTANDARD(id, name, lang, desc, features) \ 2280 .Case(name, LangStandard::lang_##id) 2281 #define LANGSTANDARD_ALIAS(id, alias) \ 2282 .Case(alias, LangStandard::lang_##id) 2283 #include "clang/Frontend/LangStandards.def" 2284 .Default(LangStandard::lang_unspecified); 2285 if (LangStd == LangStandard::lang_unspecified) { 2286 Diags.Report(diag::err_drv_invalid_value) 2287 << A->getAsString(Args) << A->getValue(); 2288 // Report supported standards with short description. 2289 for (unsigned KindValue = 0; 2290 KindValue != LangStandard::lang_unspecified; 2291 ++KindValue) { 2292 const LangStandard &Std = LangStandard::getLangStandardForKind( 2293 static_cast<LangStandard::Kind>(KindValue)); 2294 if (IsInputCompatibleWithStandard(IK, Std)) { 2295 auto Diag = Diags.Report(diag::note_drv_use_standard); 2296 Diag << Std.getName() << Std.getDescription(); 2297 unsigned NumAliases = 0; 2298 #define LANGSTANDARD(id, name, lang, desc, features) 2299 #define LANGSTANDARD_ALIAS(id, alias) \ 2300 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2301 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2302 #include "clang/Frontend/LangStandards.def" 2303 Diag << NumAliases; 2304 #define LANGSTANDARD(id, name, lang, desc, features) 2305 #define LANGSTANDARD_ALIAS(id, alias) \ 2306 if (KindValue == LangStandard::lang_##id) Diag << alias; 2307 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2308 #include "clang/Frontend/LangStandards.def" 2309 } 2310 } 2311 } else { 2312 // Valid standard, check to make sure language and standard are 2313 // compatible. 2314 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2315 if (!IsInputCompatibleWithStandard(IK, Std)) { 2316 Diags.Report(diag::err_drv_argument_not_allowed_with) 2317 << A->getAsString(Args) << GetInputKindName(IK); 2318 } 2319 } 2320 } 2321 2322 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2323 Opts.DllExportInlines = false; 2324 2325 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2326 StringRef Name = A->getValue(); 2327 if (Name == "full" || Name == "branch") { 2328 Opts.CFProtectionBranch = 1; 2329 } 2330 } 2331 // -cl-std only applies for OpenCL language standards. 2332 // Override the -std option in this case. 2333 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2334 LangStandard::Kind OpenCLLangStd 2335 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2336 .Cases("cl", "CL", LangStandard::lang_opencl10) 2337 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2338 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2339 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2340 .Case("c++", LangStandard::lang_openclcpp) 2341 .Default(LangStandard::lang_unspecified); 2342 2343 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2344 Diags.Report(diag::err_drv_invalid_value) 2345 << A->getAsString(Args) << A->getValue(); 2346 } 2347 else 2348 LangStd = OpenCLLangStd; 2349 } 2350 2351 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2352 2353 llvm::Triple T(TargetOpts.Triple); 2354 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2355 2356 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2357 // This option should be deprecated for CL > 1.0 because 2358 // this option was added for compatibility with OpenCL 1.0. 2359 if (Args.getLastArg(OPT_cl_strict_aliasing) 2360 && Opts.OpenCLVersion > 100) { 2361 Diags.Report(diag::warn_option_invalid_ocl_version) 2362 << Opts.getOpenCLVersionTuple().getAsString() 2363 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2364 } 2365 2366 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2367 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2368 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2369 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2370 // name, as it doesn't seem a useful distinction. 2371 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2372 Opts.GNUKeywords); 2373 2374 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2375 2376 if (Args.hasArg(OPT_fno_operator_names)) 2377 Opts.CXXOperatorNames = 0; 2378 2379 if (Args.hasArg(OPT_fcuda_is_device)) 2380 Opts.CUDAIsDevice = 1; 2381 2382 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2383 Opts.CUDAAllowVariadicFunctions = 1; 2384 2385 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2386 Opts.CUDAHostDeviceConstexpr = 0; 2387 2388 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2389 Opts.CUDADeviceApproxTranscendentals = 1; 2390 2391 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2392 2393 if (Opts.ObjC) { 2394 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2395 StringRef value = arg->getValue(); 2396 if (Opts.ObjCRuntime.tryParse(value)) 2397 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2398 } 2399 2400 if (Args.hasArg(OPT_fobjc_gc_only)) 2401 Opts.setGC(LangOptions::GCOnly); 2402 else if (Args.hasArg(OPT_fobjc_gc)) 2403 Opts.setGC(LangOptions::HybridGC); 2404 else if (Args.hasArg(OPT_fobjc_arc)) { 2405 Opts.ObjCAutoRefCount = 1; 2406 if (!Opts.ObjCRuntime.allowsARC()) 2407 Diags.Report(diag::err_arc_unsupported_on_runtime); 2408 } 2409 2410 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2411 // whether the feature is actually enabled. This is predominantly 2412 // determined by -fobjc-runtime, but we allow it to be overridden 2413 // from the command line for testing purposes. 2414 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2415 Opts.ObjCWeakRuntime = 1; 2416 else 2417 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2418 2419 // ObjCWeak determines whether __weak is actually enabled. 2420 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2421 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2422 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2423 assert(!Opts.ObjCWeak); 2424 } else if (Opts.getGC() != LangOptions::NonGC) { 2425 Diags.Report(diag::err_objc_weak_with_gc); 2426 } else if (!Opts.ObjCWeakRuntime) { 2427 Diags.Report(diag::err_objc_weak_unsupported); 2428 } else { 2429 Opts.ObjCWeak = 1; 2430 } 2431 } else if (Opts.ObjCAutoRefCount) { 2432 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2433 } 2434 2435 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2436 Opts.ObjCInferRelatedResultType = 0; 2437 2438 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2439 Opts.ObjCSubscriptingLegacyRuntime = 2440 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2441 } 2442 2443 if (Args.hasArg(OPT_fgnu89_inline)) { 2444 if (Opts.CPlusPlus) 2445 Diags.Report(diag::err_drv_argument_not_allowed_with) 2446 << "-fgnu89-inline" << GetInputKindName(IK); 2447 else 2448 Opts.GNUInline = 1; 2449 } 2450 2451 if (Args.hasArg(OPT_fapple_kext)) { 2452 if (!Opts.CPlusPlus) 2453 Diags.Report(diag::warn_c_kext); 2454 else 2455 Opts.AppleKext = 1; 2456 } 2457 2458 if (Args.hasArg(OPT_print_ivar_layout)) 2459 Opts.ObjCGCBitmapPrint = 1; 2460 2461 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2462 Opts.NoConstantCFStrings = 1; 2463 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2464 Opts.CFRuntime = 2465 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2466 .Cases("unspecified", "standalone", "objc", 2467 LangOptions::CoreFoundationABI::ObjectiveC) 2468 .Cases("swift", "swift-5.0", 2469 LangOptions::CoreFoundationABI::Swift5_0) 2470 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2471 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2472 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2473 2474 if (Args.hasArg(OPT_fzvector)) 2475 Opts.ZVector = 1; 2476 2477 if (Args.hasArg(OPT_pthread)) 2478 Opts.POSIXThreads = 1; 2479 2480 // The value-visibility mode defaults to "default". 2481 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2482 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2483 } else { 2484 Opts.setValueVisibilityMode(DefaultVisibility); 2485 } 2486 2487 // The type-visibility mode defaults to the value-visibility mode. 2488 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2489 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2490 } else { 2491 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2492 } 2493 2494 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2495 Opts.InlineVisibilityHidden = 1; 2496 2497 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2498 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2499 2500 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2501 Opts.SetVisibilityForExternDecls = 1; 2502 2503 if (Args.hasArg(OPT_ftrapv)) { 2504 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2505 // Set the handler, if one is specified. 2506 Opts.OverflowHandler = 2507 Args.getLastArgValue(OPT_ftrapv_handler); 2508 } 2509 else if (Args.hasArg(OPT_fwrapv)) 2510 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2511 2512 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2513 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2514 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2515 Opts.MSCompatibilityVersion = 0; 2516 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2517 VersionTuple VT; 2518 if (VT.tryParse(A->getValue())) 2519 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2520 << A->getValue(); 2521 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2522 VT.getMinor().getValueOr(0) * 100000 + 2523 VT.getSubminor().getValueOr(0); 2524 } 2525 2526 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2527 // is specified, or -std is set to a conforming mode. 2528 // Trigraphs are disabled by default in c++1z onwards. 2529 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2530 Opts.Trigraphs = 2531 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2532 2533 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2534 OPT_fno_dollars_in_identifiers, 2535 Opts.DollarIdents); 2536 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2537 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2538 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2539 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2540 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2541 Opts.ConstStrings); 2542 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2543 Opts.LaxVectorConversions = 0; 2544 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2545 Opts.ThreadsafeStatics = 0; 2546 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2547 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2548 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2549 2550 // -ffixed-point 2551 Opts.FixedPoint = 2552 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2553 !Opts.CPlusPlus; 2554 Opts.PaddingOnUnsignedFixedPoint = 2555 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2556 OPT_fno_padding_on_unsigned_fixed_point, 2557 /*Default=*/false) && 2558 Opts.FixedPoint; 2559 2560 // Handle exception personalities 2561 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2562 options::OPT_fseh_exceptions, 2563 options::OPT_fdwarf_exceptions); 2564 if (A) { 2565 const Option &Opt = A->getOption(); 2566 llvm::Triple T(TargetOpts.Triple); 2567 if (T.isWindowsMSVCEnvironment()) 2568 Diags.Report(diag::err_fe_invalid_exception_model) 2569 << Opt.getName() << T.str(); 2570 2571 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2572 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2573 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2574 } 2575 2576 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2577 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2578 2579 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2580 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2581 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2582 && Opts.OpenCLVersion == 200); 2583 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2584 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts); 2585 2586 // Enable [[]] attributes in C++11 by default. 2587 Opts.DoubleSquareBracketAttributes = 2588 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2589 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11); 2590 2591 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2592 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2593 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2594 Opts.ModulesDeclUse = 2595 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2596 Opts.ModulesLocalVisibility = 2597 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2598 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2599 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2600 Opts.ModulesSearchAll = Opts.Modules && 2601 !Args.hasArg(OPT_fno_modules_search_all) && 2602 Args.hasArg(OPT_fmodules_search_all); 2603 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2604 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2605 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2606 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2607 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2608 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2609 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2610 .Case("char", 1) 2611 .Case("short", 2) 2612 .Case("int", 4) 2613 .Default(0); 2614 if (Opts.WCharSize == 0) 2615 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2616 } 2617 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2618 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2619 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2620 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2621 if (!Opts.NoBuiltin) 2622 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2623 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2624 Opts.RelaxedTemplateTemplateArgs = 2625 Args.hasArg(OPT_frelaxed_template_template_args); 2626 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2627 Opts.AlignedAllocation = 2628 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2629 Opts.AlignedAllocation); 2630 Opts.AlignedAllocationUnavailable = 2631 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2632 Opts.NewAlignOverride = 2633 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2634 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2635 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2636 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2637 << A->getValue(); 2638 Opts.NewAlignOverride = 0; 2639 } 2640 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2641 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2642 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2643 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2644 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2645 Opts.InstantiationDepth = 2646 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2647 Opts.ArrowDepth = 2648 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2649 Opts.ConstexprCallDepth = 2650 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2651 Opts.ConstexprStepLimit = 2652 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2653 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2654 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2655 Opts.NumLargeByValueCopy = 2656 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2657 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2658 Opts.ObjCConstantStringClass = 2659 Args.getLastArgValue(OPT_fconstant_string_class); 2660 Opts.ObjCDefaultSynthProperties = 2661 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2662 Opts.EncodeExtendedBlockSig = 2663 Args.hasArg(OPT_fencode_extended_block_signature); 2664 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2665 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2666 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2667 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2668 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2669 Opts.ROPI = Args.hasArg(OPT_fropi); 2670 Opts.RWPI = Args.hasArg(OPT_frwpi); 2671 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2672 Opts.Static = Args.hasArg(OPT_static_define); 2673 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2674 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2675 || Args.hasArg(OPT_fdump_record_layouts); 2676 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2677 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2678 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2679 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2680 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2681 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2682 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2683 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2684 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2685 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2686 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2687 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2688 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ); 2689 Opts.CurrentModule = Opts.ModuleName; 2690 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2691 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2692 llvm::sort(Opts.ModuleFeatures); 2693 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2694 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2695 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2696 // is enabled. 2697 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2698 | Opts.NativeHalfArgsAndReturns; 2699 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2700 2701 // __declspec is enabled by default for the PS4 by the driver, and also 2702 // enabled for Microsoft Extensions or Borland Extensions, here. 2703 // 2704 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2705 // CUDA extension. However, it is required for supporting 2706 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2707 // been rewritten in terms of something more generic, remove the Opts.CUDA 2708 // term here. 2709 Opts.DeclSpecKeyword = 2710 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2711 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2712 2713 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2714 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2715 .Case("target", LangOptions::ASMM_Target) 2716 .Case("no", LangOptions::ASMM_Off) 2717 .Case("yes", LangOptions::ASMM_On) 2718 .Default(255)) { 2719 default: 2720 Diags.Report(diag::err_drv_invalid_value) 2721 << "-faddress-space-map-mangling=" << A->getValue(); 2722 break; 2723 case LangOptions::ASMM_Target: 2724 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2725 break; 2726 case LangOptions::ASMM_On: 2727 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2728 break; 2729 case LangOptions::ASMM_Off: 2730 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2731 break; 2732 } 2733 } 2734 2735 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2736 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2737 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2738 A->getValue()) 2739 .Case("single", 2740 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2741 .Case("multiple", 2742 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2743 .Case("virtual", 2744 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2745 .Default(LangOptions::PPTMK_BestCase); 2746 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2747 Diags.Report(diag::err_drv_invalid_value) 2748 << "-fms-memptr-rep=" << A->getValue(); 2749 2750 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2751 } 2752 2753 // Check for MS default calling conventions being specified. 2754 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2755 LangOptions::DefaultCallingConvention DefaultCC = 2756 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2757 .Case("cdecl", LangOptions::DCC_CDecl) 2758 .Case("fastcall", LangOptions::DCC_FastCall) 2759 .Case("stdcall", LangOptions::DCC_StdCall) 2760 .Case("vectorcall", LangOptions::DCC_VectorCall) 2761 .Case("regcall", LangOptions::DCC_RegCall) 2762 .Default(LangOptions::DCC_None); 2763 if (DefaultCC == LangOptions::DCC_None) 2764 Diags.Report(diag::err_drv_invalid_value) 2765 << "-fdefault-calling-conv=" << A->getValue(); 2766 2767 llvm::Triple T(TargetOpts.Triple); 2768 llvm::Triple::ArchType Arch = T.getArch(); 2769 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2770 DefaultCC == LangOptions::DCC_StdCall) && 2771 Arch != llvm::Triple::x86; 2772 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2773 DefaultCC == LangOptions::DCC_RegCall) && 2774 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2775 if (emitError) 2776 Diags.Report(diag::err_drv_argument_not_allowed_with) 2777 << A->getSpelling() << T.getTriple(); 2778 else 2779 Opts.setDefaultCallingConv(DefaultCC); 2780 } 2781 2782 // -mrtd option 2783 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2784 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2785 Diags.Report(diag::err_drv_argument_not_allowed_with) 2786 << A->getSpelling() << "-fdefault-calling-conv"; 2787 else { 2788 llvm::Triple T(TargetOpts.Triple); 2789 if (T.getArch() != llvm::Triple::x86) 2790 Diags.Report(diag::err_drv_argument_not_allowed_with) 2791 << A->getSpelling() << T.getTriple(); 2792 else 2793 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2794 } 2795 } 2796 2797 // Check if -fopenmp is specified. 2798 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2799 // Check if -fopenmp-simd is specified. 2800 bool IsSimdSpecified = 2801 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2802 /*Default=*/false); 2803 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2804 Opts.OpenMPUseTLS = 2805 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2806 Opts.OpenMPIsDevice = 2807 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2808 bool IsTargetSpecified = 2809 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2810 2811 if (Opts.OpenMP || Opts.OpenMPSimd) { 2812 if (int Version = getLastArgIntValue( 2813 Args, OPT_fopenmp_version_EQ, 2814 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 2815 Opts.OpenMP = Version; 2816 else if (IsSimdSpecified || IsTargetSpecified) 2817 Opts.OpenMP = 45; 2818 // Provide diagnostic when a given target is not expected to be an OpenMP 2819 // device or host. 2820 if (!Opts.OpenMPIsDevice) { 2821 switch (T.getArch()) { 2822 default: 2823 break; 2824 // Add unsupported host targets here: 2825 case llvm::Triple::nvptx: 2826 case llvm::Triple::nvptx64: 2827 Diags.Report(diag::err_drv_omp_host_target_not_supported) 2828 << TargetOpts.Triple; 2829 break; 2830 } 2831 } 2832 } 2833 2834 // Set the flag to prevent the implementation from emitting device exception 2835 // handling code for those requiring so. 2836 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 2837 Opts.Exceptions = 0; 2838 Opts.CXXExceptions = 0; 2839 } 2840 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2841 Opts.OpenMPCUDANumSMs = 2842 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 2843 Opts.OpenMPCUDANumSMs, Diags); 2844 Opts.OpenMPCUDABlocksPerSM = 2845 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 2846 Opts.OpenMPCUDABlocksPerSM, Diags); 2847 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 2848 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 2849 Opts.OpenMPCUDAReductionBufNum, Diags); 2850 } 2851 2852 // Prevent auto-widening the representation of loop counters during an 2853 // OpenMP collapse clause. 2854 Opts.OpenMPOptimisticCollapse = 2855 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 2856 2857 // Get the OpenMP target triples if any. 2858 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2859 2860 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2861 llvm::Triple TT(A->getValue(i)); 2862 2863 if (TT.getArch() == llvm::Triple::UnknownArch || 2864 !(TT.getArch() == llvm::Triple::ppc || 2865 TT.getArch() == llvm::Triple::ppc64 || 2866 TT.getArch() == llvm::Triple::ppc64le || 2867 TT.getArch() == llvm::Triple::nvptx || 2868 TT.getArch() == llvm::Triple::nvptx64 || 2869 TT.getArch() == llvm::Triple::x86 || 2870 TT.getArch() == llvm::Triple::x86_64)) 2871 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 2872 else 2873 Opts.OMPTargetTriples.push_back(TT); 2874 } 2875 } 2876 2877 // Get OpenMP host file path if any and report if a non existent file is 2878 // found 2879 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2880 Opts.OMPHostIRFile = A->getValue(); 2881 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2882 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 2883 << Opts.OMPHostIRFile; 2884 } 2885 2886 Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device); 2887 2888 // Set CUDA mode for OpenMP target NVPTX if specified in options 2889 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 2890 Args.hasArg(options::OPT_fopenmp_cuda_mode); 2891 2892 // Set CUDA mode for OpenMP target NVPTX if specified in options 2893 Opts.OpenMPCUDAForceFullRuntime = 2894 Opts.OpenMPIsDevice && T.isNVPTX() && 2895 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 2896 2897 // Record whether the __DEPRECATED define was requested. 2898 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2899 OPT_fno_deprecated_macro, 2900 Opts.Deprecated); 2901 2902 // FIXME: Eliminate this dependency. 2903 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2904 OptSize = getOptimizationLevelSize(Args); 2905 Opts.Optimize = Opt != 0; 2906 Opts.OptimizeSize = OptSize != 0; 2907 2908 // This is the __NO_INLINE__ define, which just depends on things like the 2909 // optimization level and -fno-inline, not actually whether the backend has 2910 // inlining enabled. 2911 Opts.NoInlineDefine = !Opts.Optimize; 2912 if (Arg *InlineArg = Args.getLastArg( 2913 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2914 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2915 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2916 Opts.NoInlineDefine = true; 2917 2918 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2919 Args.hasArg(OPT_cl_fast_relaxed_math); 2920 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2921 Args.hasArg(OPT_cl_finite_math_only) || 2922 Args.hasArg(OPT_cl_fast_relaxed_math); 2923 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2924 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2925 Args.hasArg(OPT_cl_fast_relaxed_math); 2926 2927 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2928 StringRef Val = A->getValue(); 2929 if (Val == "fast") 2930 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2931 else if (Val == "on") 2932 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2933 else if (Val == "off") 2934 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2935 else 2936 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2937 } 2938 2939 Opts.RetainCommentsFromSystemHeaders = 2940 Args.hasArg(OPT_fretain_comments_from_system_headers); 2941 2942 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2943 switch (SSP) { 2944 default: 2945 Diags.Report(diag::err_drv_invalid_value) 2946 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2947 break; 2948 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2949 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2950 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2951 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2952 } 2953 2954 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 2955 StringRef Val = A->getValue(); 2956 if (Val == "uninitialized") 2957 Opts.setTrivialAutoVarInit( 2958 LangOptions::TrivialAutoVarInitKind::Uninitialized); 2959 else if (Val == "zero") 2960 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 2961 else if (Val == "pattern") 2962 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 2963 else 2964 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2965 } 2966 2967 // Parse -fsanitize= arguments. 2968 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2969 Diags, Opts.Sanitize); 2970 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2971 Opts.SanitizeAddressFieldPadding = 2972 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2973 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2974 2975 // -fxray-instrument 2976 Opts.XRayInstrument = 2977 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2978 2979 // -fxray-always-emit-customevents 2980 Opts.XRayAlwaysEmitCustomEvents = 2981 Args.hasFlag(OPT_fxray_always_emit_customevents, 2982 OPT_fnoxray_always_emit_customevents, false); 2983 2984 // -fxray-always-emit-typedevents 2985 Opts.XRayAlwaysEmitTypedEvents = 2986 Args.hasFlag(OPT_fxray_always_emit_typedevents, 2987 OPT_fnoxray_always_emit_customevents, false); 2988 2989 // -fxray-{always,never}-instrument= filenames. 2990 Opts.XRayAlwaysInstrumentFiles = 2991 Args.getAllArgValues(OPT_fxray_always_instrument); 2992 Opts.XRayNeverInstrumentFiles = 2993 Args.getAllArgValues(OPT_fxray_never_instrument); 2994 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 2995 2996 // -fforce-emit-vtables 2997 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 2998 2999 // -fallow-editor-placeholders 3000 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3001 3002 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3003 3004 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3005 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3006 3007 StringRef Ver = A->getValue(); 3008 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3009 unsigned Major, Minor = 0; 3010 3011 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3012 // y or y.0 (4 <= y <= current version). 3013 if (!VerParts.first.startswith("0") && 3014 !VerParts.first.getAsInteger(10, Major) && 3015 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3016 (Major == 3 ? VerParts.second.size() == 1 && 3017 !VerParts.second.getAsInteger(10, Minor) 3018 : VerParts.first.size() == Ver.size() || 3019 VerParts.second == "0")) { 3020 // Got a valid version number. 3021 if (Major == 3 && Minor <= 8) 3022 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3023 else if (Major <= 4) 3024 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3025 else if (Major <= 6) 3026 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3027 else if (Major <= 7) 3028 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3029 } else if (Ver != "latest") { 3030 Diags.Report(diag::err_drv_invalid_value) 3031 << A->getAsString(Args) << A->getValue(); 3032 } 3033 } 3034 3035 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3036 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3037 } 3038 3039 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3040 switch (Action) { 3041 case frontend::ASTDeclList: 3042 case frontend::ASTDump: 3043 case frontend::ASTPrint: 3044 case frontend::ASTView: 3045 case frontend::EmitAssembly: 3046 case frontend::EmitBC: 3047 case frontend::EmitHTML: 3048 case frontend::EmitLLVM: 3049 case frontend::EmitLLVMOnly: 3050 case frontend::EmitCodeGenOnly: 3051 case frontend::EmitObj: 3052 case frontend::FixIt: 3053 case frontend::GenerateModule: 3054 case frontend::GenerateModuleInterface: 3055 case frontend::GenerateHeaderModule: 3056 case frontend::GeneratePCH: 3057 case frontend::ParseSyntaxOnly: 3058 case frontend::ModuleFileInfo: 3059 case frontend::VerifyPCH: 3060 case frontend::PluginAction: 3061 case frontend::RewriteObjC: 3062 case frontend::RewriteTest: 3063 case frontend::RunAnalysis: 3064 case frontend::TemplightDump: 3065 case frontend::MigrateSource: 3066 return false; 3067 3068 case frontend::DumpCompilerOptions: 3069 case frontend::DumpRawTokens: 3070 case frontend::DumpTokens: 3071 case frontend::InitOnly: 3072 case frontend::PrintPreamble: 3073 case frontend::PrintPreprocessedInput: 3074 case frontend::RewriteMacros: 3075 case frontend::RunPreprocessorOnly: 3076 return true; 3077 } 3078 llvm_unreachable("invalid frontend action"); 3079 } 3080 3081 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3082 DiagnosticsEngine &Diags, 3083 frontend::ActionKind Action) { 3084 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 3085 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3086 Args.hasArg(OPT_pch_through_hdrstop_use); 3087 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3088 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ); 3089 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3090 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3091 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3092 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3093 3094 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3095 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3096 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3097 3098 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3099 StringRef Value(A->getValue()); 3100 size_t Comma = Value.find(','); 3101 unsigned Bytes = 0; 3102 unsigned EndOfLine = 0; 3103 3104 if (Comma == StringRef::npos || 3105 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3106 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3107 Diags.Report(diag::err_drv_preamble_format); 3108 else { 3109 Opts.PrecompiledPreambleBytes.first = Bytes; 3110 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3111 } 3112 } 3113 3114 // Add the __CET__ macro if a CFProtection option is set. 3115 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3116 StringRef Name = A->getValue(); 3117 if (Name == "branch") 3118 Opts.addMacroDef("__CET__=1"); 3119 else if (Name == "return") 3120 Opts.addMacroDef("__CET__=2"); 3121 else if (Name == "full") 3122 Opts.addMacroDef("__CET__=3"); 3123 } 3124 3125 // Add macros from the command line. 3126 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3127 if (A->getOption().matches(OPT_D)) 3128 Opts.addMacroDef(A->getValue()); 3129 else 3130 Opts.addMacroUndef(A->getValue()); 3131 } 3132 3133 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3134 3135 // Add the ordered list of -includes. 3136 for (const auto *A : Args.filtered(OPT_include)) 3137 Opts.Includes.emplace_back(A->getValue()); 3138 3139 for (const auto *A : Args.filtered(OPT_chain_include)) 3140 Opts.ChainedIncludes.emplace_back(A->getValue()); 3141 3142 for (const auto *A : Args.filtered(OPT_remap_file)) { 3143 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3144 3145 if (Split.second.empty()) { 3146 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3147 continue; 3148 } 3149 3150 Opts.addRemappedFile(Split.first, Split.second); 3151 } 3152 3153 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3154 StringRef Name = A->getValue(); 3155 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3156 .Case("libc++", ARCXX_libcxx) 3157 .Case("libstdc++", ARCXX_libstdcxx) 3158 .Case("none", ARCXX_nolib) 3159 .Default(~0U); 3160 if (Library == ~0U) 3161 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3162 else 3163 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3164 } 3165 3166 // Always avoid lexing editor placeholders when we're just running the 3167 // preprocessor as we never want to emit the 3168 // "editor placeholder in source file" error in PP only mode. 3169 if (isStrictlyPreprocessorAction(Action)) 3170 Opts.LexEditorPlaceholders = false; 3171 } 3172 3173 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3174 ArgList &Args, 3175 frontend::ActionKind Action) { 3176 if (isStrictlyPreprocessorAction(Action)) 3177 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3178 else 3179 Opts.ShowCPP = 0; 3180 3181 Opts.ShowComments = Args.hasArg(OPT_C); 3182 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3183 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3184 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3185 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3186 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3187 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3188 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3189 } 3190 3191 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3192 DiagnosticsEngine &Diags) { 3193 Opts.CodeModel = getCodeModel(Args, Diags); 3194 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 3195 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3196 StringRef Value = A->getValue(); 3197 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3198 .Case("default", llvm::EABI::Default) 3199 .Case("4", llvm::EABI::EABI4) 3200 .Case("5", llvm::EABI::EABI5) 3201 .Case("gnu", llvm::EABI::GNU) 3202 .Default(llvm::EABI::Unknown); 3203 if (EABIVersion == llvm::EABI::Unknown) 3204 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3205 << Value; 3206 else 3207 Opts.EABIVersion = EABIVersion; 3208 } 3209 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 3210 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 3211 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3212 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 3213 Opts.Triple = Args.getLastArgValue(OPT_triple); 3214 // Use the default target triple if unspecified. 3215 if (Opts.Triple.empty()) 3216 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3217 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3218 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3219 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3220 Opts.NVPTXUseShortPointers = Args.hasFlag( 3221 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3222 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3223 llvm::VersionTuple Version; 3224 if (Version.tryParse(A->getValue())) 3225 Diags.Report(diag::err_drv_invalid_value) 3226 << A->getAsString(Args) << A->getValue(); 3227 else 3228 Opts.SDKVersion = Version; 3229 } 3230 } 3231 3232 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3233 const char *const *ArgBegin, 3234 const char *const *ArgEnd, 3235 DiagnosticsEngine &Diags) { 3236 bool Success = true; 3237 3238 // Parse the arguments. 3239 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 3240 const unsigned IncludedFlagsBitmask = options::CC1Option; 3241 unsigned MissingArgIndex, MissingArgCount; 3242 InputArgList Args = 3243 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 3244 MissingArgCount, IncludedFlagsBitmask); 3245 LangOptions &LangOpts = *Res.getLangOpts(); 3246 3247 // Check for missing argument error. 3248 if (MissingArgCount) { 3249 Diags.Report(diag::err_drv_missing_argument) 3250 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3251 Success = false; 3252 } 3253 3254 // Issue errors on unknown arguments. 3255 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3256 auto ArgString = A->getAsString(Args); 3257 std::string Nearest; 3258 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3259 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3260 else 3261 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3262 << ArgString << Nearest; 3263 Success = false; 3264 } 3265 3266 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3267 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3268 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3269 Success &= 3270 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3271 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3272 ParseCommentArgs(LangOpts.CommentOpts, Args); 3273 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3274 // FIXME: We shouldn't have to pass the DashX option around here 3275 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3276 LangOpts.IsHeaderFile); 3277 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3278 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3279 Res.getTargetOpts(), Res.getFrontendOpts()); 3280 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3281 Res.getFileSystemOpts().WorkingDir); 3282 llvm::Triple T(Res.getTargetOpts().Triple); 3283 if (DashX.getFormat() == InputKind::Precompiled || 3284 DashX.getLanguage() == InputKind::LLVM_IR) { 3285 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3286 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3287 // what the input type is. 3288 if (Args.hasArg(OPT_fobjc_arc)) 3289 LangOpts.ObjCAutoRefCount = 1; 3290 // PIClevel and PIELevel are needed during code generation and this should be 3291 // set regardless of the input type. 3292 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3293 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3294 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3295 Diags, LangOpts.Sanitize); 3296 } else { 3297 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3298 // FIXME: Should we really be calling this for an InputKind::Asm input? 3299 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3300 Res.getPreprocessorOpts(), Diags); 3301 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3302 LangOpts.ObjCExceptions = 1; 3303 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3304 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3305 // preprocessed input as we don't expect it to be used with -std=libc++ 3306 // anyway. 3307 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3308 } 3309 } 3310 3311 LangOpts.FunctionAlignment = 3312 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3313 3314 if (LangOpts.CUDA) { 3315 // During CUDA device-side compilation, the aux triple is the 3316 // triple used for host compilation. 3317 if (LangOpts.CUDAIsDevice) 3318 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3319 } 3320 3321 // Set the triple of the host for OpenMP device compile. 3322 if (LangOpts.OpenMPIsDevice) 3323 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3324 3325 // FIXME: Override value name discarding when asan or msan is used because the 3326 // backend passes depend on the name of the alloca in order to print out 3327 // names. 3328 Res.getCodeGenOpts().DiscardValueNames &= 3329 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3330 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3331 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3332 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3333 3334 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3335 Res.getFrontendOpts().ProgramAction); 3336 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3337 Res.getFrontendOpts().ProgramAction); 3338 3339 // Turn on -Wspir-compat for SPIR target. 3340 auto Arch = T.getArch(); 3341 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 3342 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3343 } 3344 3345 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3346 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3347 !Res.getLangOpts()->Sanitize.empty()) { 3348 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3349 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3350 } 3351 return Success; 3352 } 3353 3354 std::string CompilerInvocation::getModuleHash() const { 3355 // Note: For QoI reasons, the things we use as a hash here should all be 3356 // dumped via the -module-info flag. 3357 using llvm::hash_code; 3358 using llvm::hash_value; 3359 using llvm::hash_combine; 3360 3361 // Start the signature with the compiler version. 3362 // FIXME: We'd rather use something more cryptographically sound than 3363 // CityHash, but this will do for now. 3364 hash_code code = hash_value(getClangFullRepositoryVersion()); 3365 3366 // Extend the signature with the language options 3367 #define LANGOPT(Name, Bits, Default, Description) \ 3368 code = hash_combine(code, LangOpts->Name); 3369 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3370 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3371 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3372 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3373 #include "clang/Basic/LangOptions.def" 3374 3375 for (StringRef Feature : LangOpts->ModuleFeatures) 3376 code = hash_combine(code, Feature); 3377 3378 // Extend the signature with the target options. 3379 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3380 TargetOpts->ABI); 3381 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3382 code = hash_combine(code, FeatureAsWritten); 3383 3384 // Extend the signature with preprocessor options. 3385 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3386 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3387 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3388 3389 for (const auto &I : getPreprocessorOpts().Macros) { 3390 // If we're supposed to ignore this macro for the purposes of modules, 3391 // don't put it into the hash. 3392 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3393 // Check whether we're ignoring this macro. 3394 StringRef MacroDef = I.first; 3395 if (hsOpts.ModulesIgnoreMacros.count( 3396 llvm::CachedHashString(MacroDef.split('=').first))) 3397 continue; 3398 } 3399 3400 code = hash_combine(code, I.first, I.second); 3401 } 3402 3403 // Extend the signature with the sysroot and other header search options. 3404 code = hash_combine(code, hsOpts.Sysroot, 3405 hsOpts.ModuleFormat, 3406 hsOpts.UseDebugInfo, 3407 hsOpts.UseBuiltinIncludes, 3408 hsOpts.UseStandardSystemIncludes, 3409 hsOpts.UseStandardCXXIncludes, 3410 hsOpts.UseLibcxx, 3411 hsOpts.ModulesValidateDiagnosticOptions); 3412 code = hash_combine(code, hsOpts.ResourceDir); 3413 3414 // Extend the signature with the user build path. 3415 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3416 3417 // Extend the signature with the module file extensions. 3418 const FrontendOptions &frontendOpts = getFrontendOpts(); 3419 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3420 code = ext->hashExtension(code); 3421 } 3422 3423 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3424 // affects the debug info in the PCM. 3425 if (getCodeGenOpts().DebugTypeExtRefs) 3426 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3427 code = hash_combine(code, KeyValue.first, KeyValue.second); 3428 3429 // Extend the signature with the enabled sanitizers, if at least one is 3430 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3431 SanitizerSet SanHash = LangOpts->Sanitize; 3432 SanHash.clear(getPPTransparentSanitizers()); 3433 if (!SanHash.empty()) 3434 code = hash_combine(code, SanHash.Mask); 3435 3436 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3437 } 3438 3439 template<typename IntTy> 3440 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 3441 IntTy Default, 3442 DiagnosticsEngine *Diags) { 3443 IntTy Res = Default; 3444 if (Arg *A = Args.getLastArg(Id)) { 3445 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 3446 if (Diags) 3447 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 3448 << A->getValue(); 3449 } 3450 } 3451 return Res; 3452 } 3453 3454 namespace clang { 3455 3456 // Declared in clang/Frontend/Utils.h. 3457 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 3458 DiagnosticsEngine *Diags) { 3459 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 3460 } 3461 3462 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 3463 uint64_t Default, 3464 DiagnosticsEngine *Diags) { 3465 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 3466 } 3467 3468 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3469 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3470 DiagnosticsEngine &Diags) { 3471 return createVFSFromCompilerInvocation(CI, Diags, 3472 llvm::vfs::getRealFileSystem()); 3473 } 3474 3475 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3476 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3477 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3478 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3479 return BaseFS; 3480 3481 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3482 // earlier vfs files are on the bottom 3483 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3484 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3485 Result->getBufferForFile(File); 3486 if (!Buffer) { 3487 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3488 continue; 3489 } 3490 3491 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3492 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3493 /*DiagContext*/ nullptr, Result); 3494 if (!FS) { 3495 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3496 continue; 3497 } 3498 3499 Result = FS; 3500 } 3501 return Result; 3502 } 3503 3504 } // namespace clang 3505