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/DriverDiagnostic.h" 30 #include "clang/Driver/Options.h" 31 #include "clang/Frontend/CommandLineSourceLoc.h" 32 #include "clang/Frontend/DependencyOutputOptions.h" 33 #include "clang/Frontend/FrontendDiagnostic.h" 34 #include "clang/Frontend/FrontendOptions.h" 35 #include "clang/Frontend/FrontendPluginRegistry.h" 36 #include "clang/Frontend/LangStandard.h" 37 #include "clang/Frontend/MigratorOptions.h" 38 #include "clang/Frontend/PreprocessorOutputOptions.h" 39 #include "clang/Frontend/Utils.h" 40 #include "clang/Lex/HeaderSearchOptions.h" 41 #include "clang/Lex/PreprocessorOptions.h" 42 #include "clang/Sema/CodeCompleteOptions.h" 43 #include "clang/Serialization/ModuleFileExtension.h" 44 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 45 #include "llvm/ADT/APInt.h" 46 #include "llvm/ADT/ArrayRef.h" 47 #include "llvm/ADT/CachedHashString.h" 48 #include "llvm/ADT/Hashing.h" 49 #include "llvm/ADT/None.h" 50 #include "llvm/ADT/Optional.h" 51 #include "llvm/ADT/SmallString.h" 52 #include "llvm/ADT/SmallVector.h" 53 #include "llvm/ADT/StringRef.h" 54 #include "llvm/ADT/StringSwitch.h" 55 #include "llvm/ADT/Triple.h" 56 #include "llvm/ADT/Twine.h" 57 #include "llvm/IR/DebugInfoMetadata.h" 58 #include "llvm/Linker/Linker.h" 59 #include "llvm/MC/MCTargetOptions.h" 60 #include "llvm/Option/Arg.h" 61 #include "llvm/Option/ArgList.h" 62 #include "llvm/Option/OptSpecifier.h" 63 #include "llvm/Option/OptTable.h" 64 #include "llvm/Option/Option.h" 65 #include "llvm/ProfileData/InstrProfReader.h" 66 #include "llvm/Support/CodeGen.h" 67 #include "llvm/Support/Compiler.h" 68 #include "llvm/Support/Error.h" 69 #include "llvm/Support/ErrorHandling.h" 70 #include "llvm/Support/ErrorOr.h" 71 #include "llvm/Support/FileSystem.h" 72 #include "llvm/Support/Host.h" 73 #include "llvm/Support/MathExtras.h" 74 #include "llvm/Support/MemoryBuffer.h" 75 #include "llvm/Support/Path.h" 76 #include "llvm/Support/Process.h" 77 #include "llvm/Support/Regex.h" 78 #include "llvm/Support/VersionTuple.h" 79 #include "llvm/Support/VirtualFileSystem.h" 80 #include "llvm/Support/raw_ostream.h" 81 #include "llvm/Target/TargetOptions.h" 82 #include <algorithm> 83 #include <atomic> 84 #include <cassert> 85 #include <cstddef> 86 #include <cstring> 87 #include <memory> 88 #include <string> 89 #include <tuple> 90 #include <utility> 91 #include <vector> 92 93 using namespace clang; 94 using namespace driver; 95 using namespace options; 96 using namespace llvm::opt; 97 98 //===----------------------------------------------------------------------===// 99 // Initialization. 100 //===----------------------------------------------------------------------===// 101 102 CompilerInvocationBase::CompilerInvocationBase() 103 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 104 DiagnosticOpts(new DiagnosticOptions()), 105 HeaderSearchOpts(new HeaderSearchOptions()), 106 PreprocessorOpts(new PreprocessorOptions()) {} 107 108 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 109 : LangOpts(new LangOptions(*X.getLangOpts())), 110 TargetOpts(new TargetOptions(X.getTargetOpts())), 111 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 112 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 113 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 114 115 CompilerInvocationBase::~CompilerInvocationBase() = default; 116 117 //===----------------------------------------------------------------------===// 118 // Deserialization (from args) 119 //===----------------------------------------------------------------------===// 120 121 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 122 DiagnosticsEngine &Diags) { 123 unsigned DefaultOpt = llvm::CodeGenOpt::None; 124 if (IK.getLanguage() == InputKind::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 125 DefaultOpt = llvm::CodeGenOpt::Default; 126 127 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 128 if (A->getOption().matches(options::OPT_O0)) 129 return llvm::CodeGenOpt::None; 130 131 if (A->getOption().matches(options::OPT_Ofast)) 132 return llvm::CodeGenOpt::Aggressive; 133 134 assert(A->getOption().matches(options::OPT_O)); 135 136 StringRef S(A->getValue()); 137 if (S == "s" || S == "z" || S.empty()) 138 return llvm::CodeGenOpt::Default; 139 140 if (S == "g") 141 return llvm::CodeGenOpt::Less; 142 143 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 144 } 145 146 return DefaultOpt; 147 } 148 149 static unsigned getOptimizationLevelSize(ArgList &Args) { 150 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 151 if (A->getOption().matches(options::OPT_O)) { 152 switch (A->getValue()[0]) { 153 default: 154 return 0; 155 case 's': 156 return 1; 157 case 'z': 158 return 2; 159 } 160 } 161 } 162 return 0; 163 } 164 165 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 166 OptSpecifier GroupWithValue, 167 std::vector<std::string> &Diagnostics) { 168 for (auto *A : Args.filtered(Group)) { 169 if (A->getOption().getKind() == Option::FlagClass) { 170 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 171 // its name (minus the "W" or "R" at the beginning) to the warning list. 172 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 173 } else if (A->getOption().matches(GroupWithValue)) { 174 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 175 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 176 } else { 177 // Otherwise, add its value (for OPT_W_Joined and similar). 178 for (const auto *Arg : A->getValues()) 179 Diagnostics.emplace_back(Arg); 180 } 181 } 182 } 183 184 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 185 // it won't verify the input. 186 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 187 DiagnosticsEngine *Diags); 188 189 static void getAllNoBuiltinFuncValues(ArgList &Args, 190 std::vector<std::string> &Funcs) { 191 SmallVector<const char *, 8> Values; 192 for (const auto &Arg : Args) { 193 const Option &O = Arg->getOption(); 194 if (O.matches(options::OPT_fno_builtin_)) { 195 const char *FuncName = Arg->getValue(); 196 if (Builtin::Context::isBuiltinFunc(FuncName)) 197 Values.push_back(FuncName); 198 } 199 } 200 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 201 } 202 203 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 204 DiagnosticsEngine &Diags) { 205 bool Success = true; 206 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 207 StringRef Name = A->getValue(); 208 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 209 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 210 .Case(CMDFLAG, NAME##Model) 211 #include "clang/StaticAnalyzer/Core/Analyses.def" 212 .Default(NumStores); 213 if (Value == NumStores) { 214 Diags.Report(diag::err_drv_invalid_value) 215 << A->getAsString(Args) << Name; 216 Success = false; 217 } else { 218 Opts.AnalysisStoreOpt = Value; 219 } 220 } 221 222 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 223 StringRef Name = A->getValue(); 224 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 225 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 226 .Case(CMDFLAG, NAME##Model) 227 #include "clang/StaticAnalyzer/Core/Analyses.def" 228 .Default(NumConstraints); 229 if (Value == NumConstraints) { 230 Diags.Report(diag::err_drv_invalid_value) 231 << A->getAsString(Args) << Name; 232 Success = false; 233 } else { 234 Opts.AnalysisConstraintsOpt = Value; 235 } 236 } 237 238 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 239 StringRef Name = A->getValue(); 240 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 241 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 242 .Case(CMDFLAG, PD_##NAME) 243 #include "clang/StaticAnalyzer/Core/Analyses.def" 244 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 245 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 246 Diags.Report(diag::err_drv_invalid_value) 247 << A->getAsString(Args) << Name; 248 Success = false; 249 } else { 250 Opts.AnalysisDiagOpt = Value; 251 } 252 } 253 254 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 255 StringRef Name = A->getValue(); 256 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 257 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 258 .Case(CMDFLAG, NAME) 259 #include "clang/StaticAnalyzer/Core/Analyses.def" 260 .Default(NumPurgeModes); 261 if (Value == NumPurgeModes) { 262 Diags.Report(diag::err_drv_invalid_value) 263 << A->getAsString(Args) << Name; 264 Success = false; 265 } else { 266 Opts.AnalysisPurgeOpt = Value; 267 } 268 } 269 270 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 271 StringRef Name = A->getValue(); 272 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 273 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 274 .Case(CMDFLAG, NAME) 275 #include "clang/StaticAnalyzer/Core/Analyses.def" 276 .Default(NumInliningModes); 277 if (Value == NumInliningModes) { 278 Diags.Report(diag::err_drv_invalid_value) 279 << A->getAsString(Args) << Name; 280 Success = false; 281 } else { 282 Opts.InliningMode = Value; 283 } 284 } 285 286 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 287 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 288 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 289 Opts.ShouldEmitErrorsOnInvalidConfigValue = 290 /* negated */!llvm::StringSwitch<bool>( 291 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 292 .Case("true", true) 293 .Case("false", false) 294 .Default(false); 295 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 296 297 Opts.visualizeExplodedGraphWithGraphViz = 298 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 299 Opts.DumpExplodedGraphTo = Args.getLastArgValue(OPT_analyzer_dump_egraph); 300 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 301 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 302 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 303 Opts.AnalyzeNestedBlocks = 304 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 305 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 306 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 307 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 308 Opts.maxBlockVisitOnPath = 309 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 310 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 311 Opts.InlineMaxStackDepth = 312 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 313 Opts.InlineMaxStackDepth, Diags); 314 315 Opts.CheckersControlList.clear(); 316 for (const Arg *A : 317 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 318 A->claim(); 319 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 320 // We can have a list of comma separated checker names, e.g: 321 // '-analyzer-checker=cocoa,unix' 322 StringRef checkerList = A->getValue(); 323 SmallVector<StringRef, 4> checkers; 324 checkerList.split(checkers, ","); 325 for (auto checker : checkers) 326 Opts.CheckersControlList.emplace_back(checker, enable); 327 } 328 329 // Go through the analyzer configuration options. 330 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 331 332 // We can have a list of comma separated config names, e.g: 333 // '-analyzer-config key1=val1,key2=val2' 334 StringRef configList = A->getValue(); 335 SmallVector<StringRef, 4> configVals; 336 configList.split(configVals, ","); 337 for (const auto &configVal : configVals) { 338 StringRef key, val; 339 std::tie(key, val) = configVal.split("="); 340 if (val.empty()) { 341 Diags.Report(SourceLocation(), 342 diag::err_analyzer_config_no_value) << configVal; 343 Success = false; 344 break; 345 } 346 if (val.find('=') != StringRef::npos) { 347 Diags.Report(SourceLocation(), 348 diag::err_analyzer_config_multiple_values) 349 << configVal; 350 Success = false; 351 break; 352 } 353 354 // TODO: Check checker options too, possibly in CheckerRegistry. 355 // Leave unknown non-checker configs unclaimed. 356 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 357 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 358 Diags.Report(diag::err_analyzer_config_unknown) << key; 359 continue; 360 } 361 362 A->claim(); 363 Opts.Config[key] = val; 364 } 365 } 366 367 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 368 parseAnalyzerConfigs(Opts, &Diags); 369 else 370 parseAnalyzerConfigs(Opts, nullptr); 371 372 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 373 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 374 if (i != 0) 375 os << " "; 376 os << Args.getArgString(i); 377 } 378 os.flush(); 379 380 return Success; 381 } 382 383 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 384 StringRef OptionName, StringRef DefaultVal) { 385 return Config.insert({OptionName, DefaultVal}).first->second; 386 } 387 388 static void initOption(AnalyzerOptions::ConfigTable &Config, 389 DiagnosticsEngine *Diags, 390 StringRef &OptionField, StringRef Name, 391 StringRef DefaultVal) { 392 // String options may be known to invalid (e.g. if the expected string is a 393 // file name, but the file does not exist), those will have to be checked in 394 // parseConfigs. 395 OptionField = getStringOption(Config, Name, DefaultVal); 396 } 397 398 static void initOption(AnalyzerOptions::ConfigTable &Config, 399 DiagnosticsEngine *Diags, 400 bool &OptionField, StringRef Name, bool DefaultVal) { 401 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 402 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 403 .Case("true", true) 404 .Case("false", false) 405 .Default(None); 406 407 if (!PossiblyInvalidVal) { 408 if (Diags) 409 Diags->Report(diag::err_analyzer_config_invalid_input) 410 << Name << "a boolean"; 411 else 412 OptionField = DefaultVal; 413 } else 414 OptionField = PossiblyInvalidVal.getValue(); 415 } 416 417 static void initOption(AnalyzerOptions::ConfigTable &Config, 418 DiagnosticsEngine *Diags, 419 unsigned &OptionField, StringRef Name, 420 unsigned DefaultVal) { 421 422 OptionField = DefaultVal; 423 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 424 .getAsInteger(10, OptionField); 425 if (Diags && HasFailed) 426 Diags->Report(diag::err_analyzer_config_invalid_input) 427 << Name << "an unsigned"; 428 } 429 430 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 431 DiagnosticsEngine *Diags) { 432 // TODO: There's no need to store the entire configtable, it'd be plenty 433 // enough tostore checker options. 434 435 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 436 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 437 438 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 439 SHALLOW_VAL, DEEP_VAL) \ 440 switch (AnOpts.getUserMode()) { \ 441 case UMK_Shallow: \ 442 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 443 break; \ 444 case UMK_Deep: \ 445 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 446 break; \ 447 } \ 448 449 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 450 #undef ANALYZER_OPTION 451 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 452 453 // At this point, AnalyzerOptions is configured. Let's validate some options. 454 455 if (!Diags) 456 return; 457 458 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 459 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 460 << "a filename"; 461 462 if (!AnOpts.ModelPath.empty() && 463 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 464 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 465 << "a filename"; 466 } 467 468 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 469 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 470 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 471 return true; 472 } 473 474 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 475 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 476 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 477 } 478 479 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 480 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 481 StringRef Value = A->getValue(); 482 if (Value == "small" || Value == "kernel" || Value == "medium" || 483 Value == "large" || Value == "tiny") 484 return Value; 485 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 486 } 487 return "default"; 488 } 489 490 static llvm::Reloc::Model getRelocModel(ArgList &Args, 491 DiagnosticsEngine &Diags) { 492 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 493 StringRef Value = A->getValue(); 494 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 495 .Case("static", llvm::Reloc::Static) 496 .Case("pic", llvm::Reloc::PIC_) 497 .Case("ropi", llvm::Reloc::ROPI) 498 .Case("rwpi", llvm::Reloc::RWPI) 499 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 500 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 501 .Default(None); 502 if (RM.hasValue()) 503 return *RM; 504 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 505 } 506 return llvm::Reloc::PIC_; 507 } 508 509 /// Create a new Regex instance out of the string value in \p RpassArg. 510 /// It returns a pointer to the newly generated Regex instance. 511 static std::shared_ptr<llvm::Regex> 512 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 513 Arg *RpassArg) { 514 StringRef Val = RpassArg->getValue(); 515 std::string RegexError; 516 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 517 if (!Pattern->isValid(RegexError)) { 518 Diags.Report(diag::err_drv_optimization_remark_pattern) 519 << RegexError << RpassArg->getAsString(Args); 520 Pattern.reset(); 521 } 522 return Pattern; 523 } 524 525 static bool parseDiagnosticLevelMask(StringRef FlagName, 526 const std::vector<std::string> &Levels, 527 DiagnosticsEngine *Diags, 528 DiagnosticLevelMask &M) { 529 bool Success = true; 530 for (const auto &Level : Levels) { 531 DiagnosticLevelMask const PM = 532 llvm::StringSwitch<DiagnosticLevelMask>(Level) 533 .Case("note", DiagnosticLevelMask::Note) 534 .Case("remark", DiagnosticLevelMask::Remark) 535 .Case("warning", DiagnosticLevelMask::Warning) 536 .Case("error", DiagnosticLevelMask::Error) 537 .Default(DiagnosticLevelMask::None); 538 if (PM == DiagnosticLevelMask::None) { 539 Success = false; 540 if (Diags) 541 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 542 } 543 M = M | PM; 544 } 545 return Success; 546 } 547 548 static void parseSanitizerKinds(StringRef FlagName, 549 const std::vector<std::string> &Sanitizers, 550 DiagnosticsEngine &Diags, SanitizerSet &S) { 551 for (const auto &Sanitizer : Sanitizers) { 552 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 553 if (K == 0) 554 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 555 else 556 S.set(K, true); 557 } 558 } 559 560 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 561 ArgList &Args, DiagnosticsEngine &D, 562 XRayInstrSet &S) { 563 llvm::SmallVector<StringRef, 2> BundleParts; 564 llvm::SplitString(Bundle, BundleParts, ","); 565 for (const auto B : BundleParts) { 566 auto Mask = parseXRayInstrValue(B); 567 if (Mask == XRayInstrKind::None) 568 if (B != "none") 569 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 570 else 571 S.Mask = Mask; 572 else if (Mask == XRayInstrKind::All) 573 S.Mask = Mask; 574 else 575 S.set(Mask, true); 576 } 577 } 578 579 // Set the profile kind for fprofile-instrument. 580 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 581 DiagnosticsEngine &Diags) { 582 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 583 if (A == nullptr) 584 return; 585 StringRef S = A->getValue(); 586 unsigned I = llvm::StringSwitch<unsigned>(S) 587 .Case("none", CodeGenOptions::ProfileNone) 588 .Case("clang", CodeGenOptions::ProfileClangInstr) 589 .Case("llvm", CodeGenOptions::ProfileIRInstr) 590 .Default(~0U); 591 if (I == ~0U) { 592 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 593 << S; 594 return; 595 } 596 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 597 Opts.setProfileInstr(Instrumentor); 598 } 599 600 // Set the profile kind using fprofile-instrument-use-path. 601 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 602 const Twine &ProfileName) { 603 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 604 // In error, return silently and let Clang PGOUse report the error message. 605 if (auto E = ReaderOrErr.takeError()) { 606 llvm::consumeError(std::move(E)); 607 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 608 return; 609 } 610 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 611 std::move(ReaderOrErr.get()); 612 if (PGOReader->isIRLevelProfile()) 613 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 614 else 615 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 616 } 617 618 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 619 DiagnosticsEngine &Diags, 620 const TargetOptions &TargetOpts, 621 const FrontendOptions &FrontendOpts) { 622 bool Success = true; 623 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 624 625 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 626 // TODO: This could be done in Driver 627 unsigned MaxOptLevel = 3; 628 if (OptimizationLevel > MaxOptLevel) { 629 // If the optimization level is not supported, fall back on the default 630 // optimization 631 Diags.Report(diag::warn_drv_optimization_value) 632 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 633 OptimizationLevel = MaxOptLevel; 634 } 635 Opts.OptimizationLevel = OptimizationLevel; 636 637 // At O0 we want to fully disable inlining outside of cases marked with 638 // 'alwaysinline' that are required for correctness. 639 Opts.setInlining((Opts.OptimizationLevel == 0) 640 ? CodeGenOptions::OnlyAlwaysInlining 641 : CodeGenOptions::NormalInlining); 642 // Explicit inlining flags can disable some or all inlining even at 643 // optimization levels above zero. 644 if (Arg *InlineArg = Args.getLastArg( 645 options::OPT_finline_functions, options::OPT_finline_hint_functions, 646 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 647 if (Opts.OptimizationLevel > 0) { 648 const Option &InlineOpt = InlineArg->getOption(); 649 if (InlineOpt.matches(options::OPT_finline_functions)) 650 Opts.setInlining(CodeGenOptions::NormalInlining); 651 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 652 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 653 else 654 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 655 } 656 } 657 658 Opts.ExperimentalNewPassManager = Args.hasFlag( 659 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 660 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 661 662 Opts.DebugPassManager = 663 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 664 /* Default */ false); 665 666 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 667 StringRef Name = A->getValue(); 668 if (Name == "Accelerate") 669 Opts.setVecLib(CodeGenOptions::Accelerate); 670 else if (Name == "SVML") 671 Opts.setVecLib(CodeGenOptions::SVML); 672 else if (Name == "none") 673 Opts.setVecLib(CodeGenOptions::NoLibrary); 674 else 675 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 676 } 677 678 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 679 unsigned Val = 680 llvm::StringSwitch<unsigned>(A->getValue()) 681 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 682 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 683 .Case("limited", codegenoptions::LimitedDebugInfo) 684 .Case("standalone", codegenoptions::FullDebugInfo) 685 .Default(~0U); 686 if (Val == ~0U) 687 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 688 << A->getValue(); 689 else 690 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 691 } 692 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 693 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 694 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 695 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 696 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 697 .Default(~0U); 698 if (Val == ~0U) 699 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 700 << A->getValue(); 701 else 702 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 703 } 704 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 705 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 706 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 707 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 708 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 709 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 710 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 711 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 712 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 713 714 if (Arg *A = 715 Args.getLastArg(OPT_enable_split_dwarf, OPT_enable_split_dwarf_EQ)) { 716 if (A->getOption().matches(options::OPT_enable_split_dwarf)) { 717 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 718 } else { 719 StringRef Name = A->getValue(); 720 if (Name == "single") 721 Opts.setSplitDwarfMode(CodeGenOptions::SingleFileFission); 722 else if (Name == "split") 723 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 724 else 725 Diags.Report(diag::err_drv_invalid_value) 726 << A->getAsString(Args) << Name; 727 } 728 } 729 730 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 731 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 732 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 733 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 734 735 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 736 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 737 738 if (const Arg *A = 739 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 740 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 741 742 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 743 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 744 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 745 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 746 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 747 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 748 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 749 OPT_fuse_register_sized_bitfield_access); 750 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 751 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 752 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 753 Args.hasArg(OPT_new_struct_path_tbaa); 754 Opts.FineGrainedBitfieldAccesses = 755 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 756 OPT_fno_fine_grained_bitfield_accesses, false); 757 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 758 Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line); 759 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 760 Opts.NoCommon = Args.hasArg(OPT_fno_common); 761 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 762 Opts.OptimizeSize = getOptimizationLevelSize(Args); 763 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 764 Args.hasArg(OPT_ffreestanding)); 765 if (Opts.SimplifyLibCalls) 766 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 767 Opts.UnrollLoops = 768 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 769 (Opts.OptimizationLevel > 1)); 770 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 771 772 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 773 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 774 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 775 Opts.DebugInfoForProfiling = Args.hasFlag( 776 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 777 Opts.DebugNameTable = static_cast<unsigned>( 778 Args.hasArg(OPT_ggnu_pubnames) 779 ? llvm::DICompileUnit::DebugNameTableKind::GNU 780 : Args.hasArg(OPT_gpubnames) 781 ? llvm::DICompileUnit::DebugNameTableKind::Default 782 : llvm::DICompileUnit::DebugNameTableKind::None); 783 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 784 785 setPGOInstrumentor(Opts, Args, Diags); 786 Opts.InstrProfileOutput = 787 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 788 Opts.ProfileInstrumentUsePath = 789 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 790 if (!Opts.ProfileInstrumentUsePath.empty()) 791 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 792 Opts.ProfileRemappingFile = 793 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ); 794 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 795 Diags.Report(diag::err_drv_argument_only_allowed_with) 796 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 797 << "-fexperimental-new-pass-manager"; 798 } 799 800 Opts.CoverageMapping = 801 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 802 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 803 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 804 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 805 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 806 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 807 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 808 Opts.RegisterGlobalDtorsWithAtExit = 809 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 810 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 811 Opts.CodeModel = TargetOpts.CodeModel; 812 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 813 Opts.DisableFPElim = 814 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 815 Opts.DisableFree = Args.hasArg(OPT_disable_free); 816 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 817 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 818 Opts.NoEscapingBlockTailCalls = 819 Args.hasArg(OPT_fno_escaping_block_tail_calls); 820 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 821 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 822 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 823 Args.hasArg(OPT_cl_fast_relaxed_math); 824 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 825 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 826 Args.hasArg(OPT_cl_finite_math_only) || 827 Args.hasArg(OPT_cl_fast_relaxed_math)); 828 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 829 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 830 Args.hasArg(OPT_cl_finite_math_only) || 831 Args.hasArg(OPT_cl_fast_relaxed_math)); 832 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 833 Args.hasArg(OPT_cl_no_signed_zeros) || 834 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 835 Args.hasArg(OPT_cl_fast_relaxed_math)); 836 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 837 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) || 838 (Args.hasArg(OPT_fcuda_is_device) && 839 Args.hasArg(OPT_fcuda_flush_denormals_to_zero)); 840 Opts.CorrectlyRoundedDivSqrt = 841 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 842 Opts.UniformWGSize = 843 Args.hasArg(OPT_cl_uniform_work_group_size); 844 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 845 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 846 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 847 Opts.StrictFloatCastOverflow = 848 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 849 850 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 851 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 852 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 853 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 854 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 855 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 856 Opts.IncrementalLinkerCompatible = 857 Args.hasArg(OPT_mincremental_linker_compatible); 858 Opts.PIECopyRelocations = 859 Args.hasArg(OPT_mpie_copy_relocations); 860 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 861 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 862 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 863 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 864 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 865 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 866 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 867 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 868 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 869 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 870 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 871 Args.hasArg(OPT_cl_fast_relaxed_math); 872 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 873 Opts.RelocationModel = getRelocModel(Args, Diags); 874 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 875 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 876 Diags.Report(diag::err_drv_invalid_value) 877 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 878 << Opts.ThreadModel; 879 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 880 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 881 882 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 883 OPT_fno_function_sections, false); 884 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 885 OPT_fno_data_sections, false); 886 Opts.StackSizeSection = 887 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 888 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 889 OPT_fno_unique_section_names, true); 890 891 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 892 893 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 894 895 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 896 897 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 898 899 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 900 Opts.PrepareForThinLTO = false; 901 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 902 StringRef S = A->getValue(); 903 if (S == "thin") 904 Opts.PrepareForThinLTO = true; 905 else if (S != "full") 906 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 907 } 908 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 909 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 910 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 911 if (IK.getLanguage() != InputKind::LLVM_IR) 912 Diags.Report(diag::err_drv_argument_only_allowed_with) 913 << A->getAsString(Args) << "-x ir"; 914 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 915 } 916 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 917 Opts.SaveTempsFilePrefix = 918 llvm::StringSwitch<std::string>(A->getValue()) 919 .Case("obj", FrontendOpts.OutputFile) 920 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 921 922 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 923 924 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 925 926 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 927 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 928 929 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 930 931 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 932 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 933 934 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 935 936 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 937 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 938 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 939 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 940 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 941 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 942 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 943 Opts.CoverageNoFunctionNamesInData = 944 Args.hasArg(OPT_coverage_no_function_names_in_data); 945 Opts.ProfileFilterFiles = 946 Args.getLastArgValue(OPT_fprofile_filter_files_EQ); 947 Opts.ProfileExcludeFiles = 948 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ); 949 Opts.CoverageExitBlockBeforeBody = 950 Args.hasArg(OPT_coverage_exit_block_before_body); 951 if (Args.hasArg(OPT_coverage_version_EQ)) { 952 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 953 if (CoverageVersion.size() != 4) { 954 Diags.Report(diag::err_drv_invalid_value) 955 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 956 << CoverageVersion; 957 } else { 958 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 959 } 960 } 961 } 962 // Handle -fembed-bitcode option. 963 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 964 StringRef Name = A->getValue(); 965 unsigned Model = llvm::StringSwitch<unsigned>(Name) 966 .Case("off", CodeGenOptions::Embed_Off) 967 .Case("all", CodeGenOptions::Embed_All) 968 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 969 .Case("marker", CodeGenOptions::Embed_Marker) 970 .Default(~0U); 971 if (Model == ~0U) { 972 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 973 Success = false; 974 } else 975 Opts.setEmbedBitcode( 976 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 977 } 978 // FIXME: For backend options that are not yet recorded as function 979 // attributes in the IR, keep track of them so we can embed them in a 980 // separate data section and use them when building the bitcode. 981 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 982 for (const auto &A : Args) { 983 // Do not encode output and input. 984 if (A->getOption().getID() == options::OPT_o || 985 A->getOption().getID() == options::OPT_INPUT || 986 A->getOption().getID() == options::OPT_x || 987 A->getOption().getID() == options::OPT_fembed_bitcode || 988 (A->getOption().getGroup().isValid() && 989 A->getOption().getGroup().getID() == options::OPT_W_Group)) 990 continue; 991 ArgStringList ASL; 992 A->render(Args, ASL); 993 for (const auto &arg : ASL) { 994 StringRef ArgStr(arg); 995 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 996 // using \00 to separate each commandline options. 997 Opts.CmdArgs.push_back('\0'); 998 } 999 } 1000 } 1001 1002 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1003 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1004 Opts.InstrumentFunctionsAfterInlining = 1005 Args.hasArg(OPT_finstrument_functions_after_inlining); 1006 Opts.InstrumentFunctionEntryBare = 1007 Args.hasArg(OPT_finstrument_function_entry_bare); 1008 1009 Opts.XRayInstrumentFunctions = 1010 Args.hasArg(OPT_fxray_instrument); 1011 Opts.XRayAlwaysEmitCustomEvents = 1012 Args.hasArg(OPT_fxray_always_emit_customevents); 1013 Opts.XRayAlwaysEmitTypedEvents = 1014 Args.hasArg(OPT_fxray_always_emit_typedevents); 1015 Opts.XRayInstructionThreshold = 1016 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1017 1018 auto XRayInstrBundles = 1019 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1020 if (XRayInstrBundles.empty()) 1021 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1022 else 1023 for (const auto &A : XRayInstrBundles) 1024 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1025 Diags, Opts.XRayInstrumentationBundle); 1026 1027 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1028 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1029 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1030 1031 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1032 StringRef Name = A->getValue(); 1033 if (Name == "full") { 1034 Opts.CFProtectionReturn = 1; 1035 Opts.CFProtectionBranch = 1; 1036 } else if (Name == "return") 1037 Opts.CFProtectionReturn = 1; 1038 else if (Name == "branch") 1039 Opts.CFProtectionBranch = 1; 1040 else if (Name != "none") { 1041 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1042 Success = false; 1043 } 1044 } 1045 1046 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1047 OPT_compress_debug_sections_EQ)) { 1048 if (A->getOption().getID() == OPT_compress_debug_sections) { 1049 // TODO: be more clever about the compression type auto-detection 1050 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1051 } else { 1052 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1053 .Case("none", llvm::DebugCompressionType::None) 1054 .Case("zlib", llvm::DebugCompressionType::Z) 1055 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1056 .Default(llvm::DebugCompressionType::None); 1057 Opts.setCompressDebugSections(DCT); 1058 } 1059 } 1060 1061 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1062 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1063 for (auto *A : 1064 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1065 CodeGenOptions::BitcodeFileToLink F; 1066 F.Filename = A->getValue(); 1067 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1068 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1069 // When linking CUDA bitcode, propagate function attributes so that 1070 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1071 F.PropagateAttrs = true; 1072 F.Internalize = true; 1073 } 1074 Opts.LinkBitcodeFiles.push_back(F); 1075 } 1076 Opts.SanitizeCoverageType = 1077 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1078 Opts.SanitizeCoverageIndirectCalls = 1079 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1080 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1081 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1082 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1083 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1084 Opts.SanitizeCoverage8bitCounters = 1085 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1086 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1087 Opts.SanitizeCoverageTracePCGuard = 1088 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1089 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1090 Opts.SanitizeCoverageInline8bitCounters = 1091 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1092 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1093 Opts.SanitizeCoverageStackDepth = 1094 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1095 Opts.SanitizeMemoryTrackOrigins = 1096 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1097 Opts.SanitizeMemoryUseAfterDtor = 1098 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1099 OPT_fno_sanitize_memory_use_after_dtor, 1100 false); 1101 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1102 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1103 Opts.SanitizeCfiICallGeneralizePointers = 1104 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1105 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1106 if (Arg *A = Args.getLastArg( 1107 OPT_fsanitize_address_poison_custom_array_cookie, 1108 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1109 Opts.SanitizeAddressPoisonCustomArrayCookie = 1110 A->getOption().getID() == 1111 OPT_fsanitize_address_poison_custom_array_cookie; 1112 } 1113 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1114 OPT_fno_sanitize_address_use_after_scope)) { 1115 Opts.SanitizeAddressUseAfterScope = 1116 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1117 } 1118 Opts.SanitizeAddressGlobalsDeadStripping = 1119 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1120 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1121 OPT_fno_sanitize_address_use_odr_indicator)) { 1122 Opts.SanitizeAddressUseOdrIndicator = 1123 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1124 } 1125 Opts.SSPBufferSize = 1126 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1127 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1128 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1129 StringRef Val = A->getValue(); 1130 unsigned StackAlignment = Opts.StackAlignment; 1131 Val.getAsInteger(10, StackAlignment); 1132 Opts.StackAlignment = StackAlignment; 1133 } 1134 1135 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1136 StringRef Val = A->getValue(); 1137 unsigned StackProbeSize = Opts.StackProbeSize; 1138 Val.getAsInteger(0, StackProbeSize); 1139 Opts.StackProbeSize = StackProbeSize; 1140 } 1141 1142 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1143 1144 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1145 StringRef Name = A->getValue(); 1146 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1147 .Case("legacy", CodeGenOptions::Legacy) 1148 .Case("non-legacy", CodeGenOptions::NonLegacy) 1149 .Case("mixed", CodeGenOptions::Mixed) 1150 .Default(~0U); 1151 if (Method == ~0U) { 1152 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1153 Success = false; 1154 } else { 1155 Opts.setObjCDispatchMethod( 1156 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1157 } 1158 } 1159 1160 1161 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1162 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1163 1164 if (Args.getLastArg(OPT_femulated_tls) || 1165 Args.getLastArg(OPT_fno_emulated_tls)) { 1166 Opts.ExplicitEmulatedTLS = true; 1167 Opts.EmulatedTLS = 1168 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1169 } 1170 1171 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1172 StringRef Name = A->getValue(); 1173 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1174 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1175 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1176 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1177 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1178 .Default(~0U); 1179 if (Model == ~0U) { 1180 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1181 Success = false; 1182 } else { 1183 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1184 } 1185 } 1186 1187 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1188 StringRef Val = A->getValue(); 1189 if (Val == "ieee") 1190 Opts.FPDenormalMode = "ieee"; 1191 else if (Val == "preserve-sign") 1192 Opts.FPDenormalMode = "preserve-sign"; 1193 else if (Val == "positive-zero") 1194 Opts.FPDenormalMode = "positive-zero"; 1195 else 1196 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1197 } 1198 1199 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1200 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1201 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1202 } else { 1203 assert(A->getOption().matches(OPT_freg_struct_return)); 1204 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1205 } 1206 } 1207 1208 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1209 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1210 bool NeedLocTracking = false; 1211 1212 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 1213 if (!Opts.OptRecordFile.empty()) 1214 NeedLocTracking = true; 1215 1216 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1217 Opts.OptimizationRemarkPattern = 1218 GenerateOptimizationRemarkRegex(Diags, Args, A); 1219 NeedLocTracking = true; 1220 } 1221 1222 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1223 Opts.OptimizationRemarkMissedPattern = 1224 GenerateOptimizationRemarkRegex(Diags, Args, A); 1225 NeedLocTracking = true; 1226 } 1227 1228 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1229 Opts.OptimizationRemarkAnalysisPattern = 1230 GenerateOptimizationRemarkRegex(Diags, Args, A); 1231 NeedLocTracking = true; 1232 } 1233 1234 Opts.DiagnosticsWithHotness = 1235 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1236 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1237 bool UsingProfile = UsingSampleProfile || 1238 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1239 1240 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1241 // An IR file will contain PGO as metadata 1242 IK.getLanguage() != InputKind::LLVM_IR) 1243 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1244 << "-fdiagnostics-show-hotness"; 1245 1246 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1247 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1248 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1249 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1250 << "-fdiagnostics-hotness-threshold="; 1251 1252 // If the user requested to use a sample profile for PGO, then the 1253 // backend will need to track source location information so the profile 1254 // can be incorporated into the IR. 1255 if (UsingSampleProfile) 1256 NeedLocTracking = true; 1257 1258 // If the user requested a flag that requires source locations available in 1259 // the backend, make sure that the backend tracks source location information. 1260 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1261 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1262 1263 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1264 1265 // Parse -fsanitize-recover= arguments. 1266 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1267 parseSanitizerKinds("-fsanitize-recover=", 1268 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1269 Opts.SanitizeRecover); 1270 parseSanitizerKinds("-fsanitize-trap=", 1271 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1272 Opts.SanitizeTrap); 1273 1274 Opts.CudaGpuBinaryFileName = 1275 Args.getLastArgValue(OPT_fcuda_include_gpubinary); 1276 1277 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1278 1279 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1280 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1281 1282 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1283 1284 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1285 1286 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1287 StringRef SignScope = A->getValue(); 1288 1289 if (SignScope.equals_lower("none")) 1290 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1291 else if (SignScope.equals_lower("all")) 1292 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1293 else if (SignScope.equals_lower("non-leaf")) 1294 Opts.setSignReturnAddress( 1295 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1296 else 1297 Diags.Report(diag::err_drv_invalid_value) 1298 << A->getAsString(Args) << SignScope; 1299 1300 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1301 StringRef SignKey = A->getValue(); 1302 if (!SignScope.empty() && !SignKey.empty()) { 1303 if (SignKey.equals_lower("a_key")) 1304 Opts.setSignReturnAddressKey( 1305 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1306 else if (SignKey.equals_lower("b_key")) 1307 Opts.setSignReturnAddressKey( 1308 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1309 else 1310 Diags.Report(diag::err_drv_invalid_value) 1311 << A->getAsString(Args) << SignKey; 1312 } 1313 } 1314 } 1315 1316 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1317 1318 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1319 1320 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1321 1322 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1323 1324 return Success; 1325 } 1326 1327 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1328 ArgList &Args) { 1329 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1330 Opts.Targets = Args.getAllArgValues(OPT_MT); 1331 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1332 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1333 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1334 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1335 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1336 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1337 if (Args.hasArg(OPT_show_includes)) { 1338 // Writing both /showIncludes and preprocessor output to stdout 1339 // would produce interleaved output, so use stderr for /showIncludes. 1340 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1341 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1342 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1343 else 1344 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1345 } else { 1346 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1347 } 1348 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1349 Opts.ModuleDependencyOutputDir = 1350 Args.getLastArgValue(OPT_module_dependency_dir); 1351 if (Args.hasArg(OPT_MV)) 1352 Opts.OutputFormat = DependencyOutputFormat::NMake; 1353 // Add sanitizer blacklists as extra dependencies. 1354 // They won't be discovered by the regular preprocessor, so 1355 // we let make / ninja to know about this implicit dependency. 1356 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1357 // Only the -fmodule-file=<file> form. 1358 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1359 StringRef Val = A->getValue(); 1360 if (Val.find('=') == StringRef::npos) 1361 Opts.ExtraDeps.push_back(Val); 1362 } 1363 } 1364 1365 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1366 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1367 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1368 // Support both clang's -f[no-]color-diagnostics and gcc's 1369 // -f[no-]diagnostics-colors[=never|always|auto]. 1370 enum { 1371 Colors_On, 1372 Colors_Off, 1373 Colors_Auto 1374 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1375 for (auto *A : Args) { 1376 const Option &O = A->getOption(); 1377 if (O.matches(options::OPT_fcolor_diagnostics) || 1378 O.matches(options::OPT_fdiagnostics_color)) { 1379 ShowColors = Colors_On; 1380 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1381 O.matches(options::OPT_fno_diagnostics_color)) { 1382 ShowColors = Colors_Off; 1383 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1384 StringRef Value(A->getValue()); 1385 if (Value == "always") 1386 ShowColors = Colors_On; 1387 else if (Value == "never") 1388 ShowColors = Colors_Off; 1389 else if (Value == "auto") 1390 ShowColors = Colors_Auto; 1391 } 1392 } 1393 return ShowColors == Colors_On || 1394 (ShowColors == Colors_Auto && 1395 llvm::sys::Process::StandardErrHasColors()); 1396 } 1397 1398 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1399 DiagnosticsEngine *Diags) { 1400 bool Success = true; 1401 for (const auto &Prefix : VerifyPrefixes) { 1402 // Every prefix must start with a letter and contain only alphanumeric 1403 // characters, hyphens, and underscores. 1404 auto BadChar = std::find_if(Prefix.begin(), Prefix.end(), 1405 [](char C){return !isAlphanumeric(C) 1406 && C != '-' && C != '_';}); 1407 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1408 Success = false; 1409 if (Diags) { 1410 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1411 Diags->Report(diag::note_drv_verify_prefix_spelling); 1412 } 1413 } 1414 } 1415 return Success; 1416 } 1417 1418 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1419 DiagnosticsEngine *Diags, 1420 bool DefaultDiagColor, bool DefaultShowOpt) { 1421 bool Success = true; 1422 1423 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1424 if (Arg *A = 1425 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1426 Opts.DiagnosticSerializationFile = A->getValue(); 1427 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1428 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1429 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1430 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1431 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1432 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1433 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1434 OPT_fno_show_column, 1435 /*Default=*/true); 1436 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1437 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1438 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1439 Opts.ShowOptionNames = 1440 Args.hasFlag(OPT_fdiagnostics_show_option, 1441 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1442 1443 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1444 1445 // Default behavior is to not to show note include stacks. 1446 Opts.ShowNoteIncludeStack = false; 1447 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1448 OPT_fno_diagnostics_show_note_include_stack)) 1449 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1450 Opts.ShowNoteIncludeStack = true; 1451 1452 StringRef ShowOverloads = 1453 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1454 if (ShowOverloads == "best") 1455 Opts.setShowOverloads(Ovl_Best); 1456 else if (ShowOverloads == "all") 1457 Opts.setShowOverloads(Ovl_All); 1458 else { 1459 Success = false; 1460 if (Diags) 1461 Diags->Report(diag::err_drv_invalid_value) 1462 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1463 << ShowOverloads; 1464 } 1465 1466 StringRef ShowCategory = 1467 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1468 if (ShowCategory == "none") 1469 Opts.ShowCategories = 0; 1470 else if (ShowCategory == "id") 1471 Opts.ShowCategories = 1; 1472 else if (ShowCategory == "name") 1473 Opts.ShowCategories = 2; 1474 else { 1475 Success = false; 1476 if (Diags) 1477 Diags->Report(diag::err_drv_invalid_value) 1478 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1479 << ShowCategory; 1480 } 1481 1482 StringRef Format = 1483 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1484 if (Format == "clang") 1485 Opts.setFormat(DiagnosticOptions::Clang); 1486 else if (Format == "msvc") 1487 Opts.setFormat(DiagnosticOptions::MSVC); 1488 else if (Format == "msvc-fallback") { 1489 Opts.setFormat(DiagnosticOptions::MSVC); 1490 Opts.CLFallbackMode = true; 1491 } else if (Format == "vi") 1492 Opts.setFormat(DiagnosticOptions::Vi); 1493 else { 1494 Success = false; 1495 if (Diags) 1496 Diags->Report(diag::err_drv_invalid_value) 1497 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1498 << Format; 1499 } 1500 1501 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1502 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1503 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1504 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1505 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1506 if (Args.hasArg(OPT_verify)) 1507 Opts.VerifyPrefixes.push_back("expected"); 1508 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1509 // then sort it to prepare for fast lookup using std::binary_search. 1510 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1511 Opts.VerifyDiagnostics = false; 1512 Success = false; 1513 } 1514 else 1515 llvm::sort(Opts.VerifyPrefixes); 1516 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1517 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1518 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1519 Diags, DiagMask); 1520 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1521 DiagMask = DiagnosticLevelMask::All; 1522 Opts.setVerifyIgnoreUnexpected(DiagMask); 1523 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1524 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1525 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1526 Opts.MacroBacktraceLimit = 1527 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1528 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1529 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1530 Args, OPT_ftemplate_backtrace_limit, 1531 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1532 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1533 Args, OPT_fconstexpr_backtrace_limit, 1534 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1535 Opts.SpellCheckingLimit = getLastArgIntValue( 1536 Args, OPT_fspell_checking_limit, 1537 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1538 Opts.SnippetLineLimit = getLastArgIntValue( 1539 Args, OPT_fcaret_diagnostics_max_lines, 1540 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1541 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1542 DiagnosticOptions::DefaultTabStop, Diags); 1543 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1544 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1545 if (Diags) 1546 Diags->Report(diag::warn_ignoring_ftabstop_value) 1547 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1548 } 1549 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1550 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1551 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1552 1553 return Success; 1554 } 1555 1556 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1557 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1558 } 1559 1560 /// Parse the argument to the -ftest-module-file-extension 1561 /// command-line argument. 1562 /// 1563 /// \returns true on error, false on success. 1564 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1565 std::string &BlockName, 1566 unsigned &MajorVersion, 1567 unsigned &MinorVersion, 1568 bool &Hashed, 1569 std::string &UserInfo) { 1570 SmallVector<StringRef, 5> Args; 1571 Arg.split(Args, ':', 5); 1572 if (Args.size() < 5) 1573 return true; 1574 1575 BlockName = Args[0]; 1576 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1577 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1578 if (Args[3].getAsInteger(2, Hashed)) return true; 1579 if (Args.size() > 4) 1580 UserInfo = Args[4]; 1581 return false; 1582 } 1583 1584 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1585 DiagnosticsEngine &Diags, 1586 bool &IsHeaderFile) { 1587 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1588 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1589 switch (A->getOption().getID()) { 1590 default: 1591 llvm_unreachable("Invalid option in group!"); 1592 case OPT_ast_list: 1593 Opts.ProgramAction = frontend::ASTDeclList; break; 1594 case OPT_ast_dump: 1595 case OPT_ast_dump_all: 1596 case OPT_ast_dump_lookups: 1597 Opts.ProgramAction = frontend::ASTDump; break; 1598 case OPT_ast_print: 1599 Opts.ProgramAction = frontend::ASTPrint; break; 1600 case OPT_ast_view: 1601 Opts.ProgramAction = frontend::ASTView; break; 1602 case OPT_compiler_options_dump: 1603 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1604 case OPT_dump_raw_tokens: 1605 Opts.ProgramAction = frontend::DumpRawTokens; break; 1606 case OPT_dump_tokens: 1607 Opts.ProgramAction = frontend::DumpTokens; break; 1608 case OPT_S: 1609 Opts.ProgramAction = frontend::EmitAssembly; break; 1610 case OPT_emit_llvm_bc: 1611 Opts.ProgramAction = frontend::EmitBC; break; 1612 case OPT_emit_html: 1613 Opts.ProgramAction = frontend::EmitHTML; break; 1614 case OPT_emit_llvm: 1615 Opts.ProgramAction = frontend::EmitLLVM; break; 1616 case OPT_emit_llvm_only: 1617 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1618 case OPT_emit_codegen_only: 1619 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1620 case OPT_emit_obj: 1621 Opts.ProgramAction = frontend::EmitObj; break; 1622 case OPT_fixit_EQ: 1623 Opts.FixItSuffix = A->getValue(); 1624 LLVM_FALLTHROUGH; 1625 case OPT_fixit: 1626 Opts.ProgramAction = frontend::FixIt; break; 1627 case OPT_emit_module: 1628 Opts.ProgramAction = frontend::GenerateModule; break; 1629 case OPT_emit_module_interface: 1630 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1631 case OPT_emit_header_module: 1632 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1633 case OPT_emit_pch: 1634 Opts.ProgramAction = frontend::GeneratePCH; break; 1635 case OPT_init_only: 1636 Opts.ProgramAction = frontend::InitOnly; break; 1637 case OPT_fsyntax_only: 1638 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1639 case OPT_module_file_info: 1640 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1641 case OPT_verify_pch: 1642 Opts.ProgramAction = frontend::VerifyPCH; break; 1643 case OPT_print_preamble: 1644 Opts.ProgramAction = frontend::PrintPreamble; break; 1645 case OPT_E: 1646 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1647 case OPT_templight_dump: 1648 Opts.ProgramAction = frontend::TemplightDump; break; 1649 case OPT_rewrite_macros: 1650 Opts.ProgramAction = frontend::RewriteMacros; break; 1651 case OPT_rewrite_objc: 1652 Opts.ProgramAction = frontend::RewriteObjC; break; 1653 case OPT_rewrite_test: 1654 Opts.ProgramAction = frontend::RewriteTest; break; 1655 case OPT_analyze: 1656 Opts.ProgramAction = frontend::RunAnalysis; break; 1657 case OPT_migrate: 1658 Opts.ProgramAction = frontend::MigrateSource; break; 1659 case OPT_Eonly: 1660 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1661 } 1662 } 1663 1664 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1665 Opts.Plugins.emplace_back(A->getValue(0)); 1666 Opts.ProgramAction = frontend::PluginAction; 1667 Opts.ActionName = A->getValue(); 1668 } 1669 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1670 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1671 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1672 1673 for (const std::string &Arg : 1674 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1675 std::string BlockName; 1676 unsigned MajorVersion; 1677 unsigned MinorVersion; 1678 bool Hashed; 1679 std::string UserInfo; 1680 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1681 MinorVersion, Hashed, UserInfo)) { 1682 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1683 1684 continue; 1685 } 1686 1687 // Add the testing module file extension. 1688 Opts.ModuleFileExtensions.push_back( 1689 std::make_shared<TestModuleFileExtension>( 1690 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1691 } 1692 1693 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1694 Opts.CodeCompletionAt = 1695 ParsedSourceLocation::FromString(A->getValue()); 1696 if (Opts.CodeCompletionAt.FileName.empty()) 1697 Diags.Report(diag::err_drv_invalid_value) 1698 << A->getAsString(Args) << A->getValue(); 1699 } 1700 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1701 1702 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1703 Opts.Plugins = Args.getAllArgValues(OPT_load); 1704 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1705 Opts.ShowHelp = Args.hasArg(OPT_help); 1706 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1707 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1708 Opts.ShowVersion = Args.hasArg(OPT_version); 1709 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1710 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1711 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1712 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1713 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1714 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1715 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1716 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1717 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1718 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1719 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1720 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1721 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1722 // Only the -fmodule-file=<file> form. 1723 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1724 StringRef Val = A->getValue(); 1725 if (Val.find('=') == StringRef::npos) 1726 Opts.ModuleFiles.push_back(Val); 1727 } 1728 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1729 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1730 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1731 1732 Opts.CodeCompleteOpts.IncludeMacros 1733 = Args.hasArg(OPT_code_completion_macros); 1734 Opts.CodeCompleteOpts.IncludeCodePatterns 1735 = Args.hasArg(OPT_code_completion_patterns); 1736 Opts.CodeCompleteOpts.IncludeGlobals 1737 = !Args.hasArg(OPT_no_code_completion_globals); 1738 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1739 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1740 Opts.CodeCompleteOpts.IncludeBriefComments 1741 = Args.hasArg(OPT_code_completion_brief_comments); 1742 Opts.CodeCompleteOpts.IncludeFixIts 1743 = Args.hasArg(OPT_code_completion_with_fixits); 1744 1745 Opts.OverrideRecordLayoutsFile 1746 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1747 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple); 1748 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1749 1750 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1751 OPT_arcmt_modify, 1752 OPT_arcmt_migrate)) { 1753 switch (A->getOption().getID()) { 1754 default: 1755 llvm_unreachable("missed a case"); 1756 case OPT_arcmt_check: 1757 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1758 break; 1759 case OPT_arcmt_modify: 1760 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1761 break; 1762 case OPT_arcmt_migrate: 1763 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1764 break; 1765 } 1766 } 1767 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1768 Opts.ARCMTMigrateReportOut 1769 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1770 Opts.ARCMTMigrateEmitARCErrors 1771 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1772 1773 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1774 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1775 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1776 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1777 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1778 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1779 if (Args.hasArg(OPT_objcmt_migrate_property)) 1780 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1781 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1782 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1783 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1784 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1785 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1786 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1787 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1788 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1789 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1790 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1791 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1792 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1793 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1794 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1795 if (Args.hasArg(OPT_objcmt_atomic_property)) 1796 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1797 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1798 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1799 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1800 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1801 if (Args.hasArg(OPT_objcmt_migrate_all)) 1802 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1803 1804 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1805 1806 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1807 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1808 Diags.Report(diag::err_drv_argument_not_allowed_with) 1809 << "ARC migration" << "ObjC migration"; 1810 } 1811 1812 InputKind DashX(InputKind::Unknown); 1813 if (const Arg *A = Args.getLastArg(OPT_x)) { 1814 StringRef XValue = A->getValue(); 1815 1816 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1817 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1818 bool Preprocessed = XValue.consume_back("-cpp-output"); 1819 bool ModuleMap = XValue.consume_back("-module-map"); 1820 IsHeaderFile = 1821 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1822 1823 // Principal languages. 1824 DashX = llvm::StringSwitch<InputKind>(XValue) 1825 .Case("c", InputKind::C) 1826 .Case("cl", InputKind::OpenCL) 1827 .Case("cuda", InputKind::CUDA) 1828 .Case("hip", InputKind::HIP) 1829 .Case("c++", InputKind::CXX) 1830 .Case("objective-c", InputKind::ObjC) 1831 .Case("objective-c++", InputKind::ObjCXX) 1832 .Case("renderscript", InputKind::RenderScript) 1833 .Default(InputKind::Unknown); 1834 1835 // "objc[++]-cpp-output" is an acceptable synonym for 1836 // "objective-c[++]-cpp-output". 1837 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1838 DashX = llvm::StringSwitch<InputKind>(XValue) 1839 .Case("objc", InputKind::ObjC) 1840 .Case("objc++", InputKind::ObjCXX) 1841 .Default(InputKind::Unknown); 1842 1843 // Some special cases cannot be combined with suffixes. 1844 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1845 DashX = llvm::StringSwitch<InputKind>(XValue) 1846 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1847 .Case("assembler-with-cpp", InputKind::Asm) 1848 .Cases("ast", "pcm", 1849 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1850 .Case("ir", InputKind::LLVM_IR) 1851 .Default(InputKind::Unknown); 1852 1853 if (DashX.isUnknown()) 1854 Diags.Report(diag::err_drv_invalid_value) 1855 << A->getAsString(Args) << A->getValue(); 1856 1857 if (Preprocessed) 1858 DashX = DashX.getPreprocessed(); 1859 if (ModuleMap) 1860 DashX = DashX.withFormat(InputKind::ModuleMap); 1861 } 1862 1863 // '-' is the default input if none is given. 1864 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1865 Opts.Inputs.clear(); 1866 if (Inputs.empty()) 1867 Inputs.push_back("-"); 1868 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1869 InputKind IK = DashX; 1870 if (IK.isUnknown()) { 1871 IK = FrontendOptions::getInputKindForExtension( 1872 StringRef(Inputs[i]).rsplit('.').second); 1873 // FIXME: Warn on this? 1874 if (IK.isUnknown()) 1875 IK = InputKind::C; 1876 // FIXME: Remove this hack. 1877 if (i == 0) 1878 DashX = IK; 1879 } 1880 1881 // The -emit-module action implicitly takes a module map. 1882 if (Opts.ProgramAction == frontend::GenerateModule && 1883 IK.getFormat() == InputKind::Source) 1884 IK = IK.withFormat(InputKind::ModuleMap); 1885 1886 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1887 } 1888 1889 return DashX; 1890 } 1891 1892 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1893 void *MainAddr) { 1894 std::string ClangExecutable = 1895 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1896 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1897 1898 // Compute the path to the resource directory. 1899 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1900 SmallString<128> P(Dir); 1901 if (ClangResourceDir != "") 1902 llvm::sys::path::append(P, ClangResourceDir); 1903 else 1904 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1905 "clang", CLANG_VERSION_STRING); 1906 1907 return P.str(); 1908 } 1909 1910 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1911 const std::string &WorkingDir) { 1912 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1913 Opts.Verbose = Args.hasArg(OPT_v); 1914 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1915 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1916 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1917 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1918 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1919 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1920 1921 // Canonicalize -fmodules-cache-path before storing it. 1922 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1923 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1924 if (WorkingDir.empty()) 1925 llvm::sys::fs::make_absolute(P); 1926 else 1927 llvm::sys::fs::make_absolute(WorkingDir, P); 1928 } 1929 llvm::sys::path::remove_dots(P); 1930 Opts.ModuleCachePath = P.str(); 1931 1932 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1933 // Only the -fmodule-file=<name>=<file> form. 1934 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1935 StringRef Val = A->getValue(); 1936 if (Val.find('=') != StringRef::npos) 1937 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1938 } 1939 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 1940 Opts.AddPrebuiltModulePath(A->getValue()); 1941 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1942 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1943 Opts.ModulesValidateDiagnosticOptions = 1944 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1945 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1946 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1947 Opts.ModuleCachePruneInterval = 1948 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1949 Opts.ModuleCachePruneAfter = 1950 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1951 Opts.ModulesValidateOncePerBuildSession = 1952 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1953 Opts.BuildSessionTimestamp = 1954 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1955 Opts.ModulesValidateSystemHeaders = 1956 Args.hasArg(OPT_fmodules_validate_system_headers); 1957 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1958 Opts.ModuleFormat = A->getValue(); 1959 1960 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1961 StringRef MacroDef = A->getValue(); 1962 Opts.ModulesIgnoreMacros.insert( 1963 llvm::CachedHashString(MacroDef.split('=').first)); 1964 } 1965 1966 // Add -I..., -F..., and -index-header-map options in order. 1967 bool IsIndexHeaderMap = false; 1968 bool IsSysrootSpecified = 1969 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1970 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1971 if (A->getOption().matches(OPT_index_header_map)) { 1972 // -index-header-map applies to the next -I or -F. 1973 IsIndexHeaderMap = true; 1974 continue; 1975 } 1976 1977 frontend::IncludeDirGroup Group = 1978 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1979 1980 bool IsFramework = A->getOption().matches(OPT_F); 1981 std::string Path = A->getValue(); 1982 1983 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1984 SmallString<32> Buffer; 1985 llvm::sys::path::append(Buffer, Opts.Sysroot, 1986 llvm::StringRef(A->getValue()).substr(1)); 1987 Path = Buffer.str(); 1988 } 1989 1990 Opts.AddPath(Path, Group, IsFramework, 1991 /*IgnoreSysroot*/ true); 1992 IsIndexHeaderMap = false; 1993 } 1994 1995 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1996 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1997 for (const auto *A : 1998 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1999 if (A->getOption().matches(OPT_iprefix)) 2000 Prefix = A->getValue(); 2001 else if (A->getOption().matches(OPT_iwithprefix)) 2002 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2003 else 2004 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2005 } 2006 2007 for (const auto *A : Args.filtered(OPT_idirafter)) 2008 Opts.AddPath(A->getValue(), frontend::After, false, true); 2009 for (const auto *A : Args.filtered(OPT_iquote)) 2010 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2011 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2012 Opts.AddPath(A->getValue(), frontend::System, false, 2013 !A->getOption().matches(OPT_iwithsysroot)); 2014 for (const auto *A : Args.filtered(OPT_iframework)) 2015 Opts.AddPath(A->getValue(), frontend::System, true, true); 2016 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2017 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2018 /*IgnoreSysRoot=*/false); 2019 2020 // Add the paths for the various language specific isystem flags. 2021 for (const auto *A : Args.filtered(OPT_c_isystem)) 2022 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2023 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2024 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2025 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2026 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2027 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2028 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2029 2030 // Add the internal paths from a driver that detects standard include paths. 2031 for (const auto *A : 2032 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2033 frontend::IncludeDirGroup Group = frontend::System; 2034 if (A->getOption().matches(OPT_internal_externc_isystem)) 2035 Group = frontend::ExternCSystem; 2036 Opts.AddPath(A->getValue(), Group, false, true); 2037 } 2038 2039 // Add the path prefixes which are implicitly treated as being system headers. 2040 for (const auto *A : 2041 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2042 Opts.AddSystemHeaderPrefix( 2043 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2044 2045 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2046 Opts.AddVFSOverlayFile(A->getValue()); 2047 } 2048 2049 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2050 const llvm::Triple &T, 2051 PreprocessorOptions &PPOpts, 2052 LangStandard::Kind LangStd) { 2053 // Set some properties which depend solely on the input kind; it would be nice 2054 // to move these to the language standard, and have the driver resolve the 2055 // input kind + language standard. 2056 // 2057 // FIXME: Perhaps a better model would be for a single source file to have 2058 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2059 // simultaneously active? 2060 if (IK.getLanguage() == InputKind::Asm) { 2061 Opts.AsmPreprocessor = 1; 2062 } else if (IK.isObjectiveC()) { 2063 Opts.ObjC = 1; 2064 } 2065 2066 if (LangStd == LangStandard::lang_unspecified) { 2067 // Based on the base language, pick one. 2068 switch (IK.getLanguage()) { 2069 case InputKind::Unknown: 2070 case InputKind::LLVM_IR: 2071 llvm_unreachable("Invalid input kind!"); 2072 case InputKind::OpenCL: 2073 LangStd = LangStandard::lang_opencl10; 2074 break; 2075 case InputKind::CUDA: 2076 LangStd = LangStandard::lang_cuda; 2077 break; 2078 case InputKind::Asm: 2079 case InputKind::C: 2080 #if defined(CLANG_DEFAULT_STD_C) 2081 LangStd = CLANG_DEFAULT_STD_C; 2082 #else 2083 // The PS4 uses C99 as the default C standard. 2084 if (T.isPS4()) 2085 LangStd = LangStandard::lang_gnu99; 2086 else 2087 LangStd = LangStandard::lang_gnu11; 2088 #endif 2089 break; 2090 case InputKind::ObjC: 2091 #if defined(CLANG_DEFAULT_STD_C) 2092 LangStd = CLANG_DEFAULT_STD_C; 2093 #else 2094 LangStd = LangStandard::lang_gnu11; 2095 #endif 2096 break; 2097 case InputKind::CXX: 2098 case InputKind::ObjCXX: 2099 #if defined(CLANG_DEFAULT_STD_CXX) 2100 LangStd = CLANG_DEFAULT_STD_CXX; 2101 #else 2102 LangStd = LangStandard::lang_gnucxx14; 2103 #endif 2104 break; 2105 case InputKind::RenderScript: 2106 LangStd = LangStandard::lang_c99; 2107 break; 2108 case InputKind::HIP: 2109 LangStd = LangStandard::lang_hip; 2110 break; 2111 } 2112 } 2113 2114 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2115 Opts.LineComment = Std.hasLineComments(); 2116 Opts.C99 = Std.isC99(); 2117 Opts.C11 = Std.isC11(); 2118 Opts.C17 = Std.isC17(); 2119 Opts.CPlusPlus = Std.isCPlusPlus(); 2120 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2121 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2122 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2123 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2124 Opts.Digraphs = Std.hasDigraphs(); 2125 Opts.GNUMode = Std.isGNUMode(); 2126 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2127 Opts.HexFloats = Std.hasHexFloats(); 2128 Opts.ImplicitInt = Std.hasImplicitInt(); 2129 2130 // Set OpenCL Version. 2131 Opts.OpenCL = Std.isOpenCL(); 2132 if (LangStd == LangStandard::lang_opencl10) 2133 Opts.OpenCLVersion = 100; 2134 else if (LangStd == LangStandard::lang_opencl11) 2135 Opts.OpenCLVersion = 110; 2136 else if (LangStd == LangStandard::lang_opencl12) 2137 Opts.OpenCLVersion = 120; 2138 else if (LangStd == LangStandard::lang_opencl20) 2139 Opts.OpenCLVersion = 200; 2140 else if (LangStd == LangStandard::lang_openclcpp) 2141 Opts.OpenCLCPlusPlusVersion = 100; 2142 2143 // OpenCL has some additional defaults. 2144 if (Opts.OpenCL) { 2145 Opts.AltiVec = 0; 2146 Opts.ZVector = 0; 2147 Opts.LaxVectorConversions = 0; 2148 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2149 Opts.NativeHalfType = 1; 2150 Opts.NativeHalfArgsAndReturns = 1; 2151 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2152 // Include default header file for OpenCL. 2153 if (Opts.IncludeDefaultHeader) { 2154 PPOpts.Includes.push_back("opencl-c.h"); 2155 } 2156 } 2157 2158 Opts.HIP = IK.getLanguage() == InputKind::HIP; 2159 Opts.CUDA = IK.getLanguage() == InputKind::CUDA || Opts.HIP; 2160 if (Opts.CUDA) 2161 // Set default FP_CONTRACT to FAST. 2162 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2163 2164 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 2165 if (Opts.RenderScript) { 2166 Opts.NativeHalfType = 1; 2167 Opts.NativeHalfArgsAndReturns = 1; 2168 } 2169 2170 // OpenCL and C++ both have bool, true, false keywords. 2171 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2172 2173 // OpenCL has half keyword 2174 Opts.Half = Opts.OpenCL; 2175 2176 // C++ has wchar_t keyword. 2177 Opts.WChar = Opts.CPlusPlus; 2178 2179 Opts.GNUKeywords = Opts.GNUMode; 2180 Opts.CXXOperatorNames = Opts.CPlusPlus; 2181 2182 Opts.AlignedAllocation = Opts.CPlusPlus17; 2183 2184 Opts.DollarIdents = !Opts.AsmPreprocessor; 2185 } 2186 2187 /// Attempt to parse a visibility value out of the given argument. 2188 static Visibility parseVisibility(Arg *arg, ArgList &args, 2189 DiagnosticsEngine &diags) { 2190 StringRef value = arg->getValue(); 2191 if (value == "default") { 2192 return DefaultVisibility; 2193 } else if (value == "hidden" || value == "internal") { 2194 return HiddenVisibility; 2195 } else if (value == "protected") { 2196 // FIXME: diagnose if target does not support protected visibility 2197 return ProtectedVisibility; 2198 } 2199 2200 diags.Report(diag::err_drv_invalid_value) 2201 << arg->getAsString(args) << value; 2202 return DefaultVisibility; 2203 } 2204 2205 /// Check if input file kind and language standard are compatible. 2206 static bool IsInputCompatibleWithStandard(InputKind IK, 2207 const LangStandard &S) { 2208 switch (IK.getLanguage()) { 2209 case InputKind::Unknown: 2210 case InputKind::LLVM_IR: 2211 llvm_unreachable("should not parse language flags for this input"); 2212 2213 case InputKind::C: 2214 case InputKind::ObjC: 2215 case InputKind::RenderScript: 2216 return S.getLanguage() == InputKind::C; 2217 2218 case InputKind::OpenCL: 2219 return S.getLanguage() == InputKind::OpenCL; 2220 2221 case InputKind::CXX: 2222 case InputKind::ObjCXX: 2223 return S.getLanguage() == InputKind::CXX; 2224 2225 case InputKind::CUDA: 2226 // FIXME: What -std= values should be permitted for CUDA compilations? 2227 return S.getLanguage() == InputKind::CUDA || 2228 S.getLanguage() == InputKind::CXX; 2229 2230 case InputKind::HIP: 2231 return S.getLanguage() == InputKind::CXX || 2232 S.getLanguage() == InputKind::HIP; 2233 2234 case InputKind::Asm: 2235 // Accept (and ignore) all -std= values. 2236 // FIXME: The -std= value is not ignored; it affects the tokenization 2237 // and preprocessing rules if we're preprocessing this asm input. 2238 return true; 2239 } 2240 2241 llvm_unreachable("unexpected input language"); 2242 } 2243 2244 /// Get language name for given input kind. 2245 static const StringRef GetInputKindName(InputKind IK) { 2246 switch (IK.getLanguage()) { 2247 case InputKind::C: 2248 return "C"; 2249 case InputKind::ObjC: 2250 return "Objective-C"; 2251 case InputKind::CXX: 2252 return "C++"; 2253 case InputKind::ObjCXX: 2254 return "Objective-C++"; 2255 case InputKind::OpenCL: 2256 return "OpenCL"; 2257 case InputKind::CUDA: 2258 return "CUDA"; 2259 case InputKind::RenderScript: 2260 return "RenderScript"; 2261 case InputKind::HIP: 2262 return "HIP"; 2263 2264 case InputKind::Asm: 2265 return "Asm"; 2266 case InputKind::LLVM_IR: 2267 return "LLVM IR"; 2268 2269 case InputKind::Unknown: 2270 break; 2271 } 2272 llvm_unreachable("unknown input language"); 2273 } 2274 2275 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2276 const TargetOptions &TargetOpts, 2277 PreprocessorOptions &PPOpts, 2278 DiagnosticsEngine &Diags) { 2279 // FIXME: Cleanup per-file based stuff. 2280 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2281 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2282 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2283 #define LANGSTANDARD(id, name, lang, desc, features) \ 2284 .Case(name, LangStandard::lang_##id) 2285 #define LANGSTANDARD_ALIAS(id, alias) \ 2286 .Case(alias, LangStandard::lang_##id) 2287 #include "clang/Frontend/LangStandards.def" 2288 .Default(LangStandard::lang_unspecified); 2289 if (LangStd == LangStandard::lang_unspecified) { 2290 Diags.Report(diag::err_drv_invalid_value) 2291 << A->getAsString(Args) << A->getValue(); 2292 // Report supported standards with short description. 2293 for (unsigned KindValue = 0; 2294 KindValue != LangStandard::lang_unspecified; 2295 ++KindValue) { 2296 const LangStandard &Std = LangStandard::getLangStandardForKind( 2297 static_cast<LangStandard::Kind>(KindValue)); 2298 if (IsInputCompatibleWithStandard(IK, Std)) { 2299 auto Diag = Diags.Report(diag::note_drv_use_standard); 2300 Diag << Std.getName() << Std.getDescription(); 2301 unsigned NumAliases = 0; 2302 #define LANGSTANDARD(id, name, lang, desc, features) 2303 #define LANGSTANDARD_ALIAS(id, alias) \ 2304 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2305 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2306 #include "clang/Frontend/LangStandards.def" 2307 Diag << NumAliases; 2308 #define LANGSTANDARD(id, name, lang, desc, features) 2309 #define LANGSTANDARD_ALIAS(id, alias) \ 2310 if (KindValue == LangStandard::lang_##id) Diag << alias; 2311 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2312 #include "clang/Frontend/LangStandards.def" 2313 } 2314 } 2315 } else { 2316 // Valid standard, check to make sure language and standard are 2317 // compatible. 2318 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2319 if (!IsInputCompatibleWithStandard(IK, Std)) { 2320 Diags.Report(diag::err_drv_argument_not_allowed_with) 2321 << A->getAsString(Args) << GetInputKindName(IK); 2322 } 2323 } 2324 } 2325 2326 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2327 Opts.DllExportInlines = false; 2328 2329 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2330 StringRef Name = A->getValue(); 2331 if (Name == "full" || Name == "branch") { 2332 Opts.CFProtectionBranch = 1; 2333 } 2334 } 2335 // -cl-std only applies for OpenCL language standards. 2336 // Override the -std option in this case. 2337 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2338 LangStandard::Kind OpenCLLangStd 2339 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2340 .Cases("cl", "CL", LangStandard::lang_opencl10) 2341 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2342 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2343 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2344 .Case("c++", LangStandard::lang_openclcpp) 2345 .Default(LangStandard::lang_unspecified); 2346 2347 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2348 Diags.Report(diag::err_drv_invalid_value) 2349 << A->getAsString(Args) << A->getValue(); 2350 } 2351 else 2352 LangStd = OpenCLLangStd; 2353 } 2354 2355 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2356 2357 llvm::Triple T(TargetOpts.Triple); 2358 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2359 2360 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2361 // This option should be deprecated for CL > 1.0 because 2362 // this option was added for compatibility with OpenCL 1.0. 2363 if (Args.getLastArg(OPT_cl_strict_aliasing) 2364 && Opts.OpenCLVersion > 100) { 2365 Diags.Report(diag::warn_option_invalid_ocl_version) 2366 << Opts.getOpenCLVersionTuple().getAsString() 2367 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2368 } 2369 2370 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2371 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2372 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2373 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2374 // name, as it doesn't seem a useful distinction. 2375 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2376 Opts.GNUKeywords); 2377 2378 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2379 2380 if (Args.hasArg(OPT_fno_operator_names)) 2381 Opts.CXXOperatorNames = 0; 2382 2383 if (Args.hasArg(OPT_fcuda_is_device)) 2384 Opts.CUDAIsDevice = 1; 2385 2386 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2387 Opts.CUDAAllowVariadicFunctions = 1; 2388 2389 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2390 Opts.CUDAHostDeviceConstexpr = 0; 2391 2392 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2393 Opts.CUDADeviceApproxTranscendentals = 1; 2394 2395 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2396 2397 if (Opts.ObjC) { 2398 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2399 StringRef value = arg->getValue(); 2400 if (Opts.ObjCRuntime.tryParse(value)) 2401 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2402 } 2403 2404 if (Args.hasArg(OPT_fobjc_gc_only)) 2405 Opts.setGC(LangOptions::GCOnly); 2406 else if (Args.hasArg(OPT_fobjc_gc)) 2407 Opts.setGC(LangOptions::HybridGC); 2408 else if (Args.hasArg(OPT_fobjc_arc)) { 2409 Opts.ObjCAutoRefCount = 1; 2410 if (!Opts.ObjCRuntime.allowsARC()) 2411 Diags.Report(diag::err_arc_unsupported_on_runtime); 2412 } 2413 2414 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2415 // whether the feature is actually enabled. This is predominantly 2416 // determined by -fobjc-runtime, but we allow it to be overridden 2417 // from the command line for testing purposes. 2418 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2419 Opts.ObjCWeakRuntime = 1; 2420 else 2421 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2422 2423 // ObjCWeak determines whether __weak is actually enabled. 2424 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2425 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2426 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2427 assert(!Opts.ObjCWeak); 2428 } else if (Opts.getGC() != LangOptions::NonGC) { 2429 Diags.Report(diag::err_objc_weak_with_gc); 2430 } else if (!Opts.ObjCWeakRuntime) { 2431 Diags.Report(diag::err_objc_weak_unsupported); 2432 } else { 2433 Opts.ObjCWeak = 1; 2434 } 2435 } else if (Opts.ObjCAutoRefCount) { 2436 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2437 } 2438 2439 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2440 Opts.ObjCInferRelatedResultType = 0; 2441 2442 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2443 Opts.ObjCSubscriptingLegacyRuntime = 2444 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2445 } 2446 2447 if (Args.hasArg(OPT_fgnu89_inline)) { 2448 if (Opts.CPlusPlus) 2449 Diags.Report(diag::err_drv_argument_not_allowed_with) 2450 << "-fgnu89-inline" << GetInputKindName(IK); 2451 else 2452 Opts.GNUInline = 1; 2453 } 2454 2455 if (Args.hasArg(OPT_fapple_kext)) { 2456 if (!Opts.CPlusPlus) 2457 Diags.Report(diag::warn_c_kext); 2458 else 2459 Opts.AppleKext = 1; 2460 } 2461 2462 if (Args.hasArg(OPT_print_ivar_layout)) 2463 Opts.ObjCGCBitmapPrint = 1; 2464 2465 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2466 Opts.NoConstantCFStrings = 1; 2467 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2468 Opts.CFRuntime = 2469 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2470 .Cases("unspecified", "standalone", "objc", 2471 LangOptions::CoreFoundationABI::ObjectiveC) 2472 .Cases("swift", "swift-5.0", 2473 LangOptions::CoreFoundationABI::Swift5_0) 2474 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2475 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2476 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2477 2478 if (Args.hasArg(OPT_fzvector)) 2479 Opts.ZVector = 1; 2480 2481 if (Args.hasArg(OPT_pthread)) 2482 Opts.POSIXThreads = 1; 2483 2484 // The value-visibility mode defaults to "default". 2485 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2486 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2487 } else { 2488 Opts.setValueVisibilityMode(DefaultVisibility); 2489 } 2490 2491 // The type-visibility mode defaults to the value-visibility mode. 2492 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2493 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2494 } else { 2495 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2496 } 2497 2498 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2499 Opts.InlineVisibilityHidden = 1; 2500 2501 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2502 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2503 2504 if (Args.hasArg(OPT_ftrapv)) { 2505 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2506 // Set the handler, if one is specified. 2507 Opts.OverflowHandler = 2508 Args.getLastArgValue(OPT_ftrapv_handler); 2509 } 2510 else if (Args.hasArg(OPT_fwrapv)) 2511 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2512 2513 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2514 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2515 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2516 Opts.MSCompatibilityVersion = 0; 2517 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2518 VersionTuple VT; 2519 if (VT.tryParse(A->getValue())) 2520 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2521 << A->getValue(); 2522 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2523 VT.getMinor().getValueOr(0) * 100000 + 2524 VT.getSubminor().getValueOr(0); 2525 } 2526 2527 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2528 // is specified, or -std is set to a conforming mode. 2529 // Trigraphs are disabled by default in c++1z onwards. 2530 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2531 Opts.Trigraphs = 2532 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2533 2534 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2535 OPT_fno_dollars_in_identifiers, 2536 Opts.DollarIdents); 2537 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2538 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2539 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2540 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2541 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2542 Opts.ConstStrings); 2543 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2544 Opts.LaxVectorConversions = 0; 2545 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2546 Opts.ThreadsafeStatics = 0; 2547 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2548 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2549 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2550 2551 // -ffixed-point 2552 Opts.FixedPoint = 2553 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2554 !Opts.CPlusPlus; 2555 Opts.PaddingOnUnsignedFixedPoint = 2556 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2557 OPT_fno_padding_on_unsigned_fixed_point, 2558 /*Default=*/false) && 2559 Opts.FixedPoint; 2560 2561 // Handle exception personalities 2562 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2563 options::OPT_fseh_exceptions, 2564 options::OPT_fdwarf_exceptions); 2565 if (A) { 2566 const Option &Opt = A->getOption(); 2567 llvm::Triple T(TargetOpts.Triple); 2568 if (T.isWindowsMSVCEnvironment()) 2569 Diags.Report(diag::err_fe_invalid_exception_model) 2570 << Opt.getName() << T.str(); 2571 2572 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2573 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2574 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2575 } 2576 2577 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2578 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2579 2580 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2581 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2582 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2583 && Opts.OpenCLVersion == 200); 2584 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2585 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2586 2587 // Enable [[]] attributes in C++11 by default. 2588 Opts.DoubleSquareBracketAttributes = 2589 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2590 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11); 2591 2592 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2593 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2594 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2595 Opts.ModulesDeclUse = 2596 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2597 Opts.ModulesLocalVisibility = 2598 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2599 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2600 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2601 Opts.ModulesSearchAll = Opts.Modules && 2602 !Args.hasArg(OPT_fno_modules_search_all) && 2603 Args.hasArg(OPT_fmodules_search_all); 2604 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2605 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2606 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2607 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2608 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2609 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2610 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2611 .Case("char", 1) 2612 .Case("short", 2) 2613 .Case("int", 4) 2614 .Default(0); 2615 if (Opts.WCharSize == 0) 2616 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2617 } 2618 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2619 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2620 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2621 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2622 if (!Opts.NoBuiltin) 2623 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2624 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2625 Opts.RelaxedTemplateTemplateArgs = 2626 Args.hasArg(OPT_frelaxed_template_template_args); 2627 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2628 Opts.AlignedAllocation = 2629 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2630 Opts.AlignedAllocation); 2631 Opts.AlignedAllocationUnavailable = 2632 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2633 Opts.NewAlignOverride = 2634 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2635 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2636 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2637 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2638 << A->getValue(); 2639 Opts.NewAlignOverride = 0; 2640 } 2641 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2642 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2643 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2644 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2645 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2646 Opts.InstantiationDepth = 2647 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2648 Opts.ArrowDepth = 2649 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2650 Opts.ConstexprCallDepth = 2651 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2652 Opts.ConstexprStepLimit = 2653 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2654 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2655 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2656 Opts.NumLargeByValueCopy = 2657 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2658 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2659 Opts.ObjCConstantStringClass = 2660 Args.getLastArgValue(OPT_fconstant_string_class); 2661 Opts.ObjCDefaultSynthProperties = 2662 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2663 Opts.EncodeExtendedBlockSig = 2664 Args.hasArg(OPT_fencode_extended_block_signature); 2665 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2666 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2667 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2668 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2669 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2670 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2671 Opts.Static = Args.hasArg(OPT_static_define); 2672 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2673 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2674 || Args.hasArg(OPT_fdump_record_layouts); 2675 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2676 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2677 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2678 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2679 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2680 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2681 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2682 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2683 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2684 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2685 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2686 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2687 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ); 2688 Opts.CurrentModule = Opts.ModuleName; 2689 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2690 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2691 llvm::sort(Opts.ModuleFeatures); 2692 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2693 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2694 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2695 // is enabled. 2696 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2697 | Opts.NativeHalfArgsAndReturns; 2698 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2699 2700 // __declspec is enabled by default for the PS4 by the driver, and also 2701 // enabled for Microsoft Extensions or Borland Extensions, here. 2702 // 2703 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2704 // CUDA extension. However, it is required for supporting 2705 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2706 // been rewritten in terms of something more generic, remove the Opts.CUDA 2707 // term here. 2708 Opts.DeclSpecKeyword = 2709 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2710 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2711 2712 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2713 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2714 .Case("target", LangOptions::ASMM_Target) 2715 .Case("no", LangOptions::ASMM_Off) 2716 .Case("yes", LangOptions::ASMM_On) 2717 .Default(255)) { 2718 default: 2719 Diags.Report(diag::err_drv_invalid_value) 2720 << "-faddress-space-map-mangling=" << A->getValue(); 2721 break; 2722 case LangOptions::ASMM_Target: 2723 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2724 break; 2725 case LangOptions::ASMM_On: 2726 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2727 break; 2728 case LangOptions::ASMM_Off: 2729 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2730 break; 2731 } 2732 } 2733 2734 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2735 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2736 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2737 A->getValue()) 2738 .Case("single", 2739 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2740 .Case("multiple", 2741 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2742 .Case("virtual", 2743 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2744 .Default(LangOptions::PPTMK_BestCase); 2745 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2746 Diags.Report(diag::err_drv_invalid_value) 2747 << "-fms-memptr-rep=" << A->getValue(); 2748 2749 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2750 } 2751 2752 // Check for MS default calling conventions being specified. 2753 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2754 LangOptions::DefaultCallingConvention DefaultCC = 2755 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2756 .Case("cdecl", LangOptions::DCC_CDecl) 2757 .Case("fastcall", LangOptions::DCC_FastCall) 2758 .Case("stdcall", LangOptions::DCC_StdCall) 2759 .Case("vectorcall", LangOptions::DCC_VectorCall) 2760 .Case("regcall", LangOptions::DCC_RegCall) 2761 .Default(LangOptions::DCC_None); 2762 if (DefaultCC == LangOptions::DCC_None) 2763 Diags.Report(diag::err_drv_invalid_value) 2764 << "-fdefault-calling-conv=" << A->getValue(); 2765 2766 llvm::Triple T(TargetOpts.Triple); 2767 llvm::Triple::ArchType Arch = T.getArch(); 2768 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2769 DefaultCC == LangOptions::DCC_StdCall) && 2770 Arch != llvm::Triple::x86; 2771 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2772 DefaultCC == LangOptions::DCC_RegCall) && 2773 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2774 if (emitError) 2775 Diags.Report(diag::err_drv_argument_not_allowed_with) 2776 << A->getSpelling() << T.getTriple(); 2777 else 2778 Opts.setDefaultCallingConv(DefaultCC); 2779 } 2780 2781 // -mrtd option 2782 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2783 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2784 Diags.Report(diag::err_drv_argument_not_allowed_with) 2785 << A->getSpelling() << "-fdefault-calling-conv"; 2786 else { 2787 llvm::Triple T(TargetOpts.Triple); 2788 if (T.getArch() != llvm::Triple::x86) 2789 Diags.Report(diag::err_drv_argument_not_allowed_with) 2790 << A->getSpelling() << T.getTriple(); 2791 else 2792 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2793 } 2794 } 2795 2796 // Check if -fopenmp is specified. 2797 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2798 // Check if -fopenmp-simd is specified. 2799 bool IsSimdSpecified = 2800 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2801 /*Default=*/false); 2802 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2803 Opts.OpenMPUseTLS = 2804 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2805 Opts.OpenMPIsDevice = 2806 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2807 bool IsTargetSpecified = 2808 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2809 2810 if (Opts.OpenMP || Opts.OpenMPSimd) { 2811 if (int Version = getLastArgIntValue( 2812 Args, OPT_fopenmp_version_EQ, 2813 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 2814 Opts.OpenMP = Version; 2815 else if (IsSimdSpecified || IsTargetSpecified) 2816 Opts.OpenMP = 45; 2817 // Provide diagnostic when a given target is not expected to be an OpenMP 2818 // device or host. 2819 if (!Opts.OpenMPIsDevice) { 2820 switch (T.getArch()) { 2821 default: 2822 break; 2823 // Add unsupported host targets here: 2824 case llvm::Triple::nvptx: 2825 case llvm::Triple::nvptx64: 2826 Diags.Report(diag::err_drv_omp_host_target_not_supported) 2827 << TargetOpts.Triple; 2828 break; 2829 } 2830 } 2831 } 2832 2833 // Set the flag to prevent the implementation from emitting device exception 2834 // handling code for those requiring so. 2835 Opts.OpenMPHostCXXExceptions = Opts.Exceptions && Opts.CXXExceptions; 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 } 2848 2849 // Prevent auto-widening the representation of loop counters during an 2850 // OpenMP collapse clause. 2851 Opts.OpenMPOptimisticCollapse = 2852 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 2853 2854 // Get the OpenMP target triples if any. 2855 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2856 2857 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2858 llvm::Triple TT(A->getValue(i)); 2859 2860 if (TT.getArch() == llvm::Triple::UnknownArch || 2861 !(TT.getArch() == llvm::Triple::ppc || 2862 TT.getArch() == llvm::Triple::ppc64 || 2863 TT.getArch() == llvm::Triple::ppc64le || 2864 TT.getArch() == llvm::Triple::nvptx || 2865 TT.getArch() == llvm::Triple::nvptx64 || 2866 TT.getArch() == llvm::Triple::x86 || 2867 TT.getArch() == llvm::Triple::x86_64)) 2868 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 2869 else 2870 Opts.OMPTargetTriples.push_back(TT); 2871 } 2872 } 2873 2874 // Get OpenMP host file path if any and report if a non existent file is 2875 // found 2876 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2877 Opts.OMPHostIRFile = A->getValue(); 2878 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2879 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 2880 << Opts.OMPHostIRFile; 2881 } 2882 2883 // Set CUDA mode for OpenMP target NVPTX if specified in options 2884 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 2885 Args.hasArg(options::OPT_fopenmp_cuda_mode); 2886 2887 // Set CUDA mode for OpenMP target NVPTX if specified in options 2888 Opts.OpenMPCUDAForceFullRuntime = 2889 Opts.OpenMPIsDevice && T.isNVPTX() && 2890 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 2891 2892 // Record whether the __DEPRECATED define was requested. 2893 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2894 OPT_fno_deprecated_macro, 2895 Opts.Deprecated); 2896 2897 // FIXME: Eliminate this dependency. 2898 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2899 OptSize = getOptimizationLevelSize(Args); 2900 Opts.Optimize = Opt != 0; 2901 Opts.OptimizeSize = OptSize != 0; 2902 2903 // This is the __NO_INLINE__ define, which just depends on things like the 2904 // optimization level and -fno-inline, not actually whether the backend has 2905 // inlining enabled. 2906 Opts.NoInlineDefine = !Opts.Optimize; 2907 if (Arg *InlineArg = Args.getLastArg( 2908 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2909 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2910 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2911 Opts.NoInlineDefine = true; 2912 2913 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2914 Args.hasArg(OPT_cl_fast_relaxed_math); 2915 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2916 Args.hasArg(OPT_cl_finite_math_only) || 2917 Args.hasArg(OPT_cl_fast_relaxed_math); 2918 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2919 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2920 Args.hasArg(OPT_cl_fast_relaxed_math); 2921 2922 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2923 StringRef Val = A->getValue(); 2924 if (Val == "fast") 2925 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2926 else if (Val == "on") 2927 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2928 else if (Val == "off") 2929 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2930 else 2931 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2932 } 2933 2934 Opts.RetainCommentsFromSystemHeaders = 2935 Args.hasArg(OPT_fretain_comments_from_system_headers); 2936 2937 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2938 switch (SSP) { 2939 default: 2940 Diags.Report(diag::err_drv_invalid_value) 2941 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2942 break; 2943 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2944 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2945 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2946 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2947 } 2948 2949 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 2950 StringRef Val = A->getValue(); 2951 if (Val == "uninitialized") 2952 Opts.setTrivialAutoVarInit( 2953 LangOptions::TrivialAutoVarInitKind::Uninitialized); 2954 else if (Val == "zero") 2955 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 2956 else if (Val == "pattern") 2957 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 2958 else 2959 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2960 } 2961 2962 // Parse -fsanitize= arguments. 2963 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2964 Diags, Opts.Sanitize); 2965 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2966 Opts.SanitizeAddressFieldPadding = 2967 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2968 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2969 2970 // -fxray-instrument 2971 Opts.XRayInstrument = 2972 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2973 2974 // -fxray-always-emit-customevents 2975 Opts.XRayAlwaysEmitCustomEvents = 2976 Args.hasFlag(OPT_fxray_always_emit_customevents, 2977 OPT_fnoxray_always_emit_customevents, false); 2978 2979 // -fxray-always-emit-typedevents 2980 Opts.XRayAlwaysEmitTypedEvents = 2981 Args.hasFlag(OPT_fxray_always_emit_typedevents, 2982 OPT_fnoxray_always_emit_customevents, false); 2983 2984 // -fxray-{always,never}-instrument= filenames. 2985 Opts.XRayAlwaysInstrumentFiles = 2986 Args.getAllArgValues(OPT_fxray_always_instrument); 2987 Opts.XRayNeverInstrumentFiles = 2988 Args.getAllArgValues(OPT_fxray_never_instrument); 2989 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 2990 2991 // -fforce-emit-vtables 2992 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 2993 2994 // -fallow-editor-placeholders 2995 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2996 2997 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 2998 2999 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3000 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3001 3002 StringRef Ver = A->getValue(); 3003 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3004 unsigned Major, Minor = 0; 3005 3006 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3007 // y or y.0 (4 <= y <= current version). 3008 if (!VerParts.first.startswith("0") && 3009 !VerParts.first.getAsInteger(10, Major) && 3010 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3011 (Major == 3 ? VerParts.second.size() == 1 && 3012 !VerParts.second.getAsInteger(10, Minor) 3013 : VerParts.first.size() == Ver.size() || 3014 VerParts.second == "0")) { 3015 // Got a valid version number. 3016 if (Major == 3 && Minor <= 8) 3017 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3018 else if (Major <= 4) 3019 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3020 else if (Major <= 6) 3021 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3022 else if (Major <= 7) 3023 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3024 } else if (Ver != "latest") { 3025 Diags.Report(diag::err_drv_invalid_value) 3026 << A->getAsString(Args) << A->getValue(); 3027 } 3028 } 3029 3030 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3031 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3032 } 3033 3034 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3035 switch (Action) { 3036 case frontend::ASTDeclList: 3037 case frontend::ASTDump: 3038 case frontend::ASTPrint: 3039 case frontend::ASTView: 3040 case frontend::EmitAssembly: 3041 case frontend::EmitBC: 3042 case frontend::EmitHTML: 3043 case frontend::EmitLLVM: 3044 case frontend::EmitLLVMOnly: 3045 case frontend::EmitCodeGenOnly: 3046 case frontend::EmitObj: 3047 case frontend::FixIt: 3048 case frontend::GenerateModule: 3049 case frontend::GenerateModuleInterface: 3050 case frontend::GenerateHeaderModule: 3051 case frontend::GeneratePCH: 3052 case frontend::ParseSyntaxOnly: 3053 case frontend::ModuleFileInfo: 3054 case frontend::VerifyPCH: 3055 case frontend::PluginAction: 3056 case frontend::RewriteObjC: 3057 case frontend::RewriteTest: 3058 case frontend::RunAnalysis: 3059 case frontend::TemplightDump: 3060 case frontend::MigrateSource: 3061 return false; 3062 3063 case frontend::DumpCompilerOptions: 3064 case frontend::DumpRawTokens: 3065 case frontend::DumpTokens: 3066 case frontend::InitOnly: 3067 case frontend::PrintPreamble: 3068 case frontend::PrintPreprocessedInput: 3069 case frontend::RewriteMacros: 3070 case frontend::RunPreprocessorOnly: 3071 return true; 3072 } 3073 llvm_unreachable("invalid frontend action"); 3074 } 3075 3076 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3077 DiagnosticsEngine &Diags, 3078 frontend::ActionKind Action) { 3079 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 3080 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3081 Args.hasArg(OPT_pch_through_hdrstop_use); 3082 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3083 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ); 3084 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3085 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3086 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3087 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3088 3089 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3090 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3091 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3092 3093 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3094 StringRef Value(A->getValue()); 3095 size_t Comma = Value.find(','); 3096 unsigned Bytes = 0; 3097 unsigned EndOfLine = 0; 3098 3099 if (Comma == StringRef::npos || 3100 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3101 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3102 Diags.Report(diag::err_drv_preamble_format); 3103 else { 3104 Opts.PrecompiledPreambleBytes.first = Bytes; 3105 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3106 } 3107 } 3108 3109 // Add the __CET__ macro if a CFProtection option is set. 3110 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3111 StringRef Name = A->getValue(); 3112 if (Name == "branch") 3113 Opts.addMacroDef("__CET__=1"); 3114 else if (Name == "return") 3115 Opts.addMacroDef("__CET__=2"); 3116 else if (Name == "full") 3117 Opts.addMacroDef("__CET__=3"); 3118 } 3119 3120 // Add macros from the command line. 3121 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3122 if (A->getOption().matches(OPT_D)) 3123 Opts.addMacroDef(A->getValue()); 3124 else 3125 Opts.addMacroUndef(A->getValue()); 3126 } 3127 3128 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3129 3130 // Add the ordered list of -includes. 3131 for (const auto *A : Args.filtered(OPT_include)) 3132 Opts.Includes.emplace_back(A->getValue()); 3133 3134 for (const auto *A : Args.filtered(OPT_chain_include)) 3135 Opts.ChainedIncludes.emplace_back(A->getValue()); 3136 3137 for (const auto *A : Args.filtered(OPT_remap_file)) { 3138 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3139 3140 if (Split.second.empty()) { 3141 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3142 continue; 3143 } 3144 3145 Opts.addRemappedFile(Split.first, Split.second); 3146 } 3147 3148 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3149 StringRef Name = A->getValue(); 3150 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3151 .Case("libc++", ARCXX_libcxx) 3152 .Case("libstdc++", ARCXX_libstdcxx) 3153 .Case("none", ARCXX_nolib) 3154 .Default(~0U); 3155 if (Library == ~0U) 3156 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3157 else 3158 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3159 } 3160 3161 // Always avoid lexing editor placeholders when we're just running the 3162 // preprocessor as we never want to emit the 3163 // "editor placeholder in source file" error in PP only mode. 3164 if (isStrictlyPreprocessorAction(Action)) 3165 Opts.LexEditorPlaceholders = false; 3166 } 3167 3168 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3169 ArgList &Args, 3170 frontend::ActionKind Action) { 3171 if (isStrictlyPreprocessorAction(Action)) 3172 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3173 else 3174 Opts.ShowCPP = 0; 3175 3176 Opts.ShowComments = Args.hasArg(OPT_C); 3177 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3178 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3179 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3180 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3181 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3182 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3183 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3184 } 3185 3186 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3187 DiagnosticsEngine &Diags) { 3188 Opts.CodeModel = getCodeModel(Args, Diags); 3189 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 3190 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3191 StringRef Value = A->getValue(); 3192 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3193 .Case("default", llvm::EABI::Default) 3194 .Case("4", llvm::EABI::EABI4) 3195 .Case("5", llvm::EABI::EABI5) 3196 .Case("gnu", llvm::EABI::GNU) 3197 .Default(llvm::EABI::Unknown); 3198 if (EABIVersion == llvm::EABI::Unknown) 3199 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3200 << Value; 3201 else 3202 Opts.EABIVersion = EABIVersion; 3203 } 3204 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 3205 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 3206 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3207 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 3208 Opts.Triple = Args.getLastArgValue(OPT_triple); 3209 // Use the default target triple if unspecified. 3210 if (Opts.Triple.empty()) 3211 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3212 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3213 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3214 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3215 Opts.NVPTXUseShortPointers = Args.hasFlag( 3216 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3217 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3218 llvm::VersionTuple Version; 3219 if (Version.tryParse(A->getValue())) 3220 Diags.Report(diag::err_drv_invalid_value) 3221 << A->getAsString(Args) << A->getValue(); 3222 else 3223 Opts.SDKVersion = Version; 3224 } 3225 } 3226 3227 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3228 const char *const *ArgBegin, 3229 const char *const *ArgEnd, 3230 DiagnosticsEngine &Diags) { 3231 bool Success = true; 3232 3233 // Parse the arguments. 3234 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 3235 const unsigned IncludedFlagsBitmask = options::CC1Option; 3236 unsigned MissingArgIndex, MissingArgCount; 3237 InputArgList Args = 3238 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 3239 MissingArgCount, IncludedFlagsBitmask); 3240 LangOptions &LangOpts = *Res.getLangOpts(); 3241 3242 // Check for missing argument error. 3243 if (MissingArgCount) { 3244 Diags.Report(diag::err_drv_missing_argument) 3245 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3246 Success = false; 3247 } 3248 3249 // Issue errors on unknown arguments. 3250 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3251 auto ArgString = A->getAsString(Args); 3252 std::string Nearest; 3253 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3254 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3255 else 3256 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3257 << ArgString << Nearest; 3258 Success = false; 3259 } 3260 3261 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3262 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3263 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3264 Success &= 3265 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3266 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3267 ParseCommentArgs(LangOpts.CommentOpts, Args); 3268 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3269 // FIXME: We shouldn't have to pass the DashX option around here 3270 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3271 LangOpts.IsHeaderFile); 3272 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3273 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3274 Res.getTargetOpts(), Res.getFrontendOpts()); 3275 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3276 Res.getFileSystemOpts().WorkingDir); 3277 llvm::Triple T(Res.getTargetOpts().Triple); 3278 if (DashX.getFormat() == InputKind::Precompiled || 3279 DashX.getLanguage() == InputKind::LLVM_IR) { 3280 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3281 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3282 // what the input type is. 3283 if (Args.hasArg(OPT_fobjc_arc)) 3284 LangOpts.ObjCAutoRefCount = 1; 3285 // PIClevel and PIELevel are needed during code generation and this should be 3286 // set regardless of the input type. 3287 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3288 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3289 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3290 Diags, LangOpts.Sanitize); 3291 } else { 3292 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3293 // FIXME: Should we really be calling this for an InputKind::Asm input? 3294 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3295 Res.getPreprocessorOpts(), Diags); 3296 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3297 LangOpts.ObjCExceptions = 1; 3298 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3299 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3300 // preprocessed input as we don't expect it to be used with -std=libc++ 3301 // anyway. 3302 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3303 } 3304 } 3305 3306 LangOpts.FunctionAlignment = 3307 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3308 3309 if (LangOpts.CUDA) { 3310 // During CUDA device-side compilation, the aux triple is the 3311 // triple used for host compilation. 3312 if (LangOpts.CUDAIsDevice) 3313 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3314 } 3315 3316 // Set the triple of the host for OpenMP device compile. 3317 if (LangOpts.OpenMPIsDevice) 3318 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3319 3320 // FIXME: Override value name discarding when asan or msan is used because the 3321 // backend passes depend on the name of the alloca in order to print out 3322 // names. 3323 Res.getCodeGenOpts().DiscardValueNames &= 3324 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3325 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3326 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3327 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3328 3329 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3330 Res.getFrontendOpts().ProgramAction); 3331 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3332 Res.getFrontendOpts().ProgramAction); 3333 3334 // Turn on -Wspir-compat for SPIR target. 3335 auto Arch = T.getArch(); 3336 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 3337 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3338 } 3339 3340 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3341 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3342 !Res.getLangOpts()->Sanitize.empty()) { 3343 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3344 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3345 } 3346 return Success; 3347 } 3348 3349 std::string CompilerInvocation::getModuleHash() const { 3350 // Note: For QoI reasons, the things we use as a hash here should all be 3351 // dumped via the -module-info flag. 3352 using llvm::hash_code; 3353 using llvm::hash_value; 3354 using llvm::hash_combine; 3355 3356 // Start the signature with the compiler version. 3357 // FIXME: We'd rather use something more cryptographically sound than 3358 // CityHash, but this will do for now. 3359 hash_code code = hash_value(getClangFullRepositoryVersion()); 3360 3361 // Extend the signature with the language options 3362 #define LANGOPT(Name, Bits, Default, Description) \ 3363 code = hash_combine(code, LangOpts->Name); 3364 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3365 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3366 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3367 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3368 #include "clang/Basic/LangOptions.def" 3369 3370 for (StringRef Feature : LangOpts->ModuleFeatures) 3371 code = hash_combine(code, Feature); 3372 3373 // Extend the signature with the target options. 3374 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3375 TargetOpts->ABI); 3376 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3377 code = hash_combine(code, FeatureAsWritten); 3378 3379 // Extend the signature with preprocessor options. 3380 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3381 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3382 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3383 3384 for (const auto &I : getPreprocessorOpts().Macros) { 3385 // If we're supposed to ignore this macro for the purposes of modules, 3386 // don't put it into the hash. 3387 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3388 // Check whether we're ignoring this macro. 3389 StringRef MacroDef = I.first; 3390 if (hsOpts.ModulesIgnoreMacros.count( 3391 llvm::CachedHashString(MacroDef.split('=').first))) 3392 continue; 3393 } 3394 3395 code = hash_combine(code, I.first, I.second); 3396 } 3397 3398 // Extend the signature with the sysroot and other header search options. 3399 code = hash_combine(code, hsOpts.Sysroot, 3400 hsOpts.ModuleFormat, 3401 hsOpts.UseDebugInfo, 3402 hsOpts.UseBuiltinIncludes, 3403 hsOpts.UseStandardSystemIncludes, 3404 hsOpts.UseStandardCXXIncludes, 3405 hsOpts.UseLibcxx, 3406 hsOpts.ModulesValidateDiagnosticOptions); 3407 code = hash_combine(code, hsOpts.ResourceDir); 3408 3409 // Extend the signature with the user build path. 3410 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3411 3412 // Extend the signature with the module file extensions. 3413 const FrontendOptions &frontendOpts = getFrontendOpts(); 3414 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3415 code = ext->hashExtension(code); 3416 } 3417 3418 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3419 // affects the debug info in the PCM. 3420 if (getCodeGenOpts().DebugTypeExtRefs) 3421 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3422 code = hash_combine(code, KeyValue.first, KeyValue.second); 3423 3424 // Extend the signature with the enabled sanitizers, if at least one is 3425 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3426 SanitizerSet SanHash = LangOpts->Sanitize; 3427 SanHash.clear(getPPTransparentSanitizers()); 3428 if (!SanHash.empty()) 3429 code = hash_combine(code, SanHash.Mask); 3430 3431 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3432 } 3433 3434 template<typename IntTy> 3435 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 3436 IntTy Default, 3437 DiagnosticsEngine *Diags) { 3438 IntTy Res = Default; 3439 if (Arg *A = Args.getLastArg(Id)) { 3440 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 3441 if (Diags) 3442 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 3443 << A->getValue(); 3444 } 3445 } 3446 return Res; 3447 } 3448 3449 namespace clang { 3450 3451 // Declared in clang/Frontend/Utils.h. 3452 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 3453 DiagnosticsEngine *Diags) { 3454 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 3455 } 3456 3457 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 3458 uint64_t Default, 3459 DiagnosticsEngine *Diags) { 3460 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 3461 } 3462 3463 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3464 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3465 DiagnosticsEngine &Diags) { 3466 return createVFSFromCompilerInvocation(CI, Diags, 3467 llvm::vfs::getRealFileSystem()); 3468 } 3469 3470 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3471 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3472 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3473 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3474 return BaseFS; 3475 3476 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3477 // earlier vfs files are on the bottom 3478 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3479 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3480 Result->getBufferForFile(File); 3481 if (!Buffer) { 3482 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3483 continue; 3484 } 3485 3486 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3487 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3488 /*DiagContext*/ nullptr, Result); 3489 if (!FS) { 3490 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3491 continue; 3492 } 3493 3494 Result = FS; 3495 } 3496 return Result; 3497 } 3498 3499 } // namespace clang 3500