1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/ObjCRuntime.h" 22 #include "clang/Basic/Sanitizers.h" 23 #include "clang/Basic/SourceLocation.h" 24 #include "clang/Basic/TargetOptions.h" 25 #include "clang/Basic/Version.h" 26 #include "clang/Basic/Visibility.h" 27 #include "clang/Basic/XRayInstr.h" 28 #include "clang/Config/config.h" 29 #include "clang/Driver/Driver.h" 30 #include "clang/Driver/DriverDiagnostic.h" 31 #include "clang/Driver/Options.h" 32 #include "clang/Frontend/CommandLineSourceLoc.h" 33 #include "clang/Frontend/DependencyOutputOptions.h" 34 #include "clang/Frontend/FrontendDiagnostic.h" 35 #include "clang/Frontend/FrontendOptions.h" 36 #include "clang/Frontend/FrontendPluginRegistry.h" 37 #include "clang/Frontend/LangStandard.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/Utils.h" 41 #include "clang/Lex/HeaderSearchOptions.h" 42 #include "clang/Lex/PreprocessorOptions.h" 43 #include "clang/Sema/CodeCompleteOptions.h" 44 #include "clang/Serialization/ModuleFileExtension.h" 45 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 46 #include "llvm/ADT/APInt.h" 47 #include "llvm/ADT/ArrayRef.h" 48 #include "llvm/ADT/CachedHashString.h" 49 #include "llvm/ADT/Hashing.h" 50 #include "llvm/ADT/None.h" 51 #include "llvm/ADT/Optional.h" 52 #include "llvm/ADT/SmallString.h" 53 #include "llvm/ADT/SmallVector.h" 54 #include "llvm/ADT/StringRef.h" 55 #include "llvm/ADT/StringSwitch.h" 56 #include "llvm/ADT/Triple.h" 57 #include "llvm/ADT/Twine.h" 58 #include "llvm/IR/DebugInfoMetadata.h" 59 #include "llvm/Linker/Linker.h" 60 #include "llvm/MC/MCTargetOptions.h" 61 #include "llvm/Option/Arg.h" 62 #include "llvm/Option/ArgList.h" 63 #include "llvm/Option/OptSpecifier.h" 64 #include "llvm/Option/OptTable.h" 65 #include "llvm/Option/Option.h" 66 #include "llvm/ProfileData/InstrProfReader.h" 67 #include "llvm/Support/CodeGen.h" 68 #include "llvm/Support/Compiler.h" 69 #include "llvm/Support/Error.h" 70 #include "llvm/Support/ErrorHandling.h" 71 #include "llvm/Support/ErrorOr.h" 72 #include "llvm/Support/FileSystem.h" 73 #include "llvm/Support/Host.h" 74 #include "llvm/Support/MathExtras.h" 75 #include "llvm/Support/MemoryBuffer.h" 76 #include "llvm/Support/Path.h" 77 #include "llvm/Support/Process.h" 78 #include "llvm/Support/Regex.h" 79 #include "llvm/Support/VersionTuple.h" 80 #include "llvm/Support/VirtualFileSystem.h" 81 #include "llvm/Support/raw_ostream.h" 82 #include "llvm/Target/TargetOptions.h" 83 #include <algorithm> 84 #include <atomic> 85 #include <cassert> 86 #include <cstddef> 87 #include <cstring> 88 #include <memory> 89 #include <string> 90 #include <tuple> 91 #include <utility> 92 #include <vector> 93 94 using namespace clang; 95 using namespace driver; 96 using namespace options; 97 using namespace llvm::opt; 98 99 //===----------------------------------------------------------------------===// 100 // Initialization. 101 //===----------------------------------------------------------------------===// 102 103 CompilerInvocationBase::CompilerInvocationBase() 104 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 105 DiagnosticOpts(new DiagnosticOptions()), 106 HeaderSearchOpts(new HeaderSearchOptions()), 107 PreprocessorOpts(new PreprocessorOptions()) {} 108 109 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 110 : LangOpts(new LangOptions(*X.getLangOpts())), 111 TargetOpts(new TargetOptions(X.getTargetOpts())), 112 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 113 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 114 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 115 116 CompilerInvocationBase::~CompilerInvocationBase() = default; 117 118 //===----------------------------------------------------------------------===// 119 // Deserialization (from args) 120 //===----------------------------------------------------------------------===// 121 122 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 123 DiagnosticsEngine &Diags) { 124 unsigned DefaultOpt = llvm::CodeGenOpt::None; 125 if (IK.getLanguage() == InputKind::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 126 DefaultOpt = llvm::CodeGenOpt::Default; 127 128 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 129 if (A->getOption().matches(options::OPT_O0)) 130 return llvm::CodeGenOpt::None; 131 132 if (A->getOption().matches(options::OPT_Ofast)) 133 return llvm::CodeGenOpt::Aggressive; 134 135 assert(A->getOption().matches(options::OPT_O)); 136 137 StringRef S(A->getValue()); 138 if (S == "s" || S == "z" || S.empty()) 139 return llvm::CodeGenOpt::Default; 140 141 if (S == "g") 142 return llvm::CodeGenOpt::Less; 143 144 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 145 } 146 147 return DefaultOpt; 148 } 149 150 static unsigned getOptimizationLevelSize(ArgList &Args) { 151 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 152 if (A->getOption().matches(options::OPT_O)) { 153 switch (A->getValue()[0]) { 154 default: 155 return 0; 156 case 's': 157 return 1; 158 case 'z': 159 return 2; 160 } 161 } 162 } 163 return 0; 164 } 165 166 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 167 OptSpecifier GroupWithValue, 168 std::vector<std::string> &Diagnostics) { 169 for (auto *A : Args.filtered(Group)) { 170 if (A->getOption().getKind() == Option::FlagClass) { 171 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 172 // its name (minus the "W" or "R" at the beginning) to the warning list. 173 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 174 } else if (A->getOption().matches(GroupWithValue)) { 175 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 176 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 177 } else { 178 // Otherwise, add its value (for OPT_W_Joined and similar). 179 for (const auto *Arg : A->getValues()) 180 Diagnostics.emplace_back(Arg); 181 } 182 } 183 } 184 185 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 186 // it won't verify the input. 187 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 188 DiagnosticsEngine *Diags); 189 190 static void getAllNoBuiltinFuncValues(ArgList &Args, 191 std::vector<std::string> &Funcs) { 192 SmallVector<const char *, 8> Values; 193 for (const auto &Arg : Args) { 194 const Option &O = Arg->getOption(); 195 if (O.matches(options::OPT_fno_builtin_)) { 196 const char *FuncName = Arg->getValue(); 197 if (Builtin::Context::isBuiltinFunc(FuncName)) 198 Values.push_back(FuncName); 199 } 200 } 201 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 202 } 203 204 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 205 DiagnosticsEngine &Diags) { 206 bool Success = true; 207 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 208 StringRef Name = A->getValue(); 209 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 210 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 211 .Case(CMDFLAG, NAME##Model) 212 #include "clang/StaticAnalyzer/Core/Analyses.def" 213 .Default(NumStores); 214 if (Value == NumStores) { 215 Diags.Report(diag::err_drv_invalid_value) 216 << A->getAsString(Args) << Name; 217 Success = false; 218 } else { 219 Opts.AnalysisStoreOpt = Value; 220 } 221 } 222 223 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 224 StringRef Name = A->getValue(); 225 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 226 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 227 .Case(CMDFLAG, NAME##Model) 228 #include "clang/StaticAnalyzer/Core/Analyses.def" 229 .Default(NumConstraints); 230 if (Value == NumConstraints) { 231 Diags.Report(diag::err_drv_invalid_value) 232 << A->getAsString(Args) << Name; 233 Success = false; 234 } else { 235 Opts.AnalysisConstraintsOpt = Value; 236 } 237 } 238 239 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 240 StringRef Name = A->getValue(); 241 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 242 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 243 .Case(CMDFLAG, PD_##NAME) 244 #include "clang/StaticAnalyzer/Core/Analyses.def" 245 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 246 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 247 Diags.Report(diag::err_drv_invalid_value) 248 << A->getAsString(Args) << Name; 249 Success = false; 250 } else { 251 Opts.AnalysisDiagOpt = Value; 252 } 253 } 254 255 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 256 StringRef Name = A->getValue(); 257 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 258 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 259 .Case(CMDFLAG, NAME) 260 #include "clang/StaticAnalyzer/Core/Analyses.def" 261 .Default(NumPurgeModes); 262 if (Value == NumPurgeModes) { 263 Diags.Report(diag::err_drv_invalid_value) 264 << A->getAsString(Args) << Name; 265 Success = false; 266 } else { 267 Opts.AnalysisPurgeOpt = Value; 268 } 269 } 270 271 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 272 StringRef Name = A->getValue(); 273 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 274 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 275 .Case(CMDFLAG, NAME) 276 #include "clang/StaticAnalyzer/Core/Analyses.def" 277 .Default(NumInliningModes); 278 if (Value == NumInliningModes) { 279 Diags.Report(diag::err_drv_invalid_value) 280 << A->getAsString(Args) << Name; 281 Success = false; 282 } else { 283 Opts.InliningMode = Value; 284 } 285 } 286 287 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 288 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 289 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 290 Opts.ShouldEmitErrorsOnInvalidConfigValue = 291 /* negated */!llvm::StringSwitch<bool>( 292 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 293 .Case("true", true) 294 .Case("false", false) 295 .Default(false); 296 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 297 298 Opts.visualizeExplodedGraphWithGraphViz = 299 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 300 Opts.DumpExplodedGraphTo = Args.getLastArgValue(OPT_analyzer_dump_egraph); 301 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 302 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 303 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 304 Opts.AnalyzeNestedBlocks = 305 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 306 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 307 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 308 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 309 Opts.maxBlockVisitOnPath = 310 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 311 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 312 Opts.InlineMaxStackDepth = 313 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 314 Opts.InlineMaxStackDepth, Diags); 315 316 Opts.CheckersControlList.clear(); 317 for (const Arg *A : 318 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 319 A->claim(); 320 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 321 // We can have a list of comma separated checker names, e.g: 322 // '-analyzer-checker=cocoa,unix' 323 StringRef checkerList = A->getValue(); 324 SmallVector<StringRef, 4> checkers; 325 checkerList.split(checkers, ","); 326 for (auto checker : checkers) 327 Opts.CheckersControlList.emplace_back(checker, enable); 328 } 329 330 // Go through the analyzer configuration options. 331 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 332 333 // We can have a list of comma separated config names, e.g: 334 // '-analyzer-config key1=val1,key2=val2' 335 StringRef configList = A->getValue(); 336 SmallVector<StringRef, 4> configVals; 337 configList.split(configVals, ","); 338 for (const auto &configVal : configVals) { 339 StringRef key, val; 340 std::tie(key, val) = configVal.split("="); 341 if (val.empty()) { 342 Diags.Report(SourceLocation(), 343 diag::err_analyzer_config_no_value) << configVal; 344 Success = false; 345 break; 346 } 347 if (val.find('=') != StringRef::npos) { 348 Diags.Report(SourceLocation(), 349 diag::err_analyzer_config_multiple_values) 350 << configVal; 351 Success = false; 352 break; 353 } 354 355 // TODO: Check checker options too, possibly in CheckerRegistry. 356 // Leave unknown non-checker configs unclaimed. 357 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 358 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 359 Diags.Report(diag::err_analyzer_config_unknown) << key; 360 continue; 361 } 362 363 A->claim(); 364 Opts.Config[key] = val; 365 } 366 } 367 368 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 369 parseAnalyzerConfigs(Opts, &Diags); 370 else 371 parseAnalyzerConfigs(Opts, nullptr); 372 373 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 374 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 375 if (i != 0) 376 os << " "; 377 os << Args.getArgString(i); 378 } 379 os.flush(); 380 381 return Success; 382 } 383 384 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 385 StringRef OptionName, StringRef DefaultVal) { 386 return Config.insert({OptionName, DefaultVal}).first->second; 387 } 388 389 static void initOption(AnalyzerOptions::ConfigTable &Config, 390 DiagnosticsEngine *Diags, 391 StringRef &OptionField, StringRef Name, 392 StringRef DefaultVal) { 393 // String options may be known to invalid (e.g. if the expected string is a 394 // file name, but the file does not exist), those will have to be checked in 395 // parseConfigs. 396 OptionField = getStringOption(Config, Name, DefaultVal); 397 } 398 399 static void initOption(AnalyzerOptions::ConfigTable &Config, 400 DiagnosticsEngine *Diags, 401 bool &OptionField, StringRef Name, bool DefaultVal) { 402 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 403 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 404 .Case("true", true) 405 .Case("false", false) 406 .Default(None); 407 408 if (!PossiblyInvalidVal) { 409 if (Diags) 410 Diags->Report(diag::err_analyzer_config_invalid_input) 411 << Name << "a boolean"; 412 else 413 OptionField = DefaultVal; 414 } else 415 OptionField = PossiblyInvalidVal.getValue(); 416 } 417 418 static void initOption(AnalyzerOptions::ConfigTable &Config, 419 DiagnosticsEngine *Diags, 420 unsigned &OptionField, StringRef Name, 421 unsigned DefaultVal) { 422 423 OptionField = DefaultVal; 424 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 425 .getAsInteger(10, OptionField); 426 if (Diags && HasFailed) 427 Diags->Report(diag::err_analyzer_config_invalid_input) 428 << Name << "an unsigned"; 429 } 430 431 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 432 DiagnosticsEngine *Diags) { 433 // TODO: There's no need to store the entire configtable, it'd be plenty 434 // enough tostore checker options. 435 436 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 437 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 438 439 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 440 SHALLOW_VAL, DEEP_VAL) \ 441 switch (AnOpts.getUserMode()) { \ 442 case UMK_Shallow: \ 443 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 444 break; \ 445 case UMK_Deep: \ 446 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 447 break; \ 448 } \ 449 450 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 451 #undef ANALYZER_OPTION 452 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 453 454 // At this point, AnalyzerOptions is configured. Let's validate some options. 455 456 if (!Diags) 457 return; 458 459 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 460 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 461 << "a filename"; 462 463 if (!AnOpts.ModelPath.empty() && 464 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 465 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 466 << "a filename"; 467 } 468 469 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 470 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 471 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 472 return true; 473 } 474 475 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 476 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 477 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 478 } 479 480 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 481 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 482 StringRef Value = A->getValue(); 483 if (Value == "small" || Value == "kernel" || Value == "medium" || 484 Value == "large" || Value == "tiny") 485 return Value; 486 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 487 } 488 return "default"; 489 } 490 491 static llvm::Reloc::Model getRelocModel(ArgList &Args, 492 DiagnosticsEngine &Diags) { 493 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 494 StringRef Value = A->getValue(); 495 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 496 .Case("static", llvm::Reloc::Static) 497 .Case("pic", llvm::Reloc::PIC_) 498 .Case("ropi", llvm::Reloc::ROPI) 499 .Case("rwpi", llvm::Reloc::RWPI) 500 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 501 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 502 .Default(None); 503 if (RM.hasValue()) 504 return *RM; 505 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 506 } 507 return llvm::Reloc::PIC_; 508 } 509 510 /// Create a new Regex instance out of the string value in \p RpassArg. 511 /// It returns a pointer to the newly generated Regex instance. 512 static std::shared_ptr<llvm::Regex> 513 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 514 Arg *RpassArg) { 515 StringRef Val = RpassArg->getValue(); 516 std::string RegexError; 517 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 518 if (!Pattern->isValid(RegexError)) { 519 Diags.Report(diag::err_drv_optimization_remark_pattern) 520 << RegexError << RpassArg->getAsString(Args); 521 Pattern.reset(); 522 } 523 return Pattern; 524 } 525 526 static bool parseDiagnosticLevelMask(StringRef FlagName, 527 const std::vector<std::string> &Levels, 528 DiagnosticsEngine *Diags, 529 DiagnosticLevelMask &M) { 530 bool Success = true; 531 for (const auto &Level : Levels) { 532 DiagnosticLevelMask const PM = 533 llvm::StringSwitch<DiagnosticLevelMask>(Level) 534 .Case("note", DiagnosticLevelMask::Note) 535 .Case("remark", DiagnosticLevelMask::Remark) 536 .Case("warning", DiagnosticLevelMask::Warning) 537 .Case("error", DiagnosticLevelMask::Error) 538 .Default(DiagnosticLevelMask::None); 539 if (PM == DiagnosticLevelMask::None) { 540 Success = false; 541 if (Diags) 542 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 543 } 544 M = M | PM; 545 } 546 return Success; 547 } 548 549 static void parseSanitizerKinds(StringRef FlagName, 550 const std::vector<std::string> &Sanitizers, 551 DiagnosticsEngine &Diags, SanitizerSet &S) { 552 for (const auto &Sanitizer : Sanitizers) { 553 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 554 if (K == 0) 555 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 556 else 557 S.set(K, true); 558 } 559 } 560 561 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 562 ArgList &Args, DiagnosticsEngine &D, 563 XRayInstrSet &S) { 564 llvm::SmallVector<StringRef, 2> BundleParts; 565 llvm::SplitString(Bundle, BundleParts, ","); 566 for (const auto B : BundleParts) { 567 auto Mask = parseXRayInstrValue(B); 568 if (Mask == XRayInstrKind::None) 569 if (B != "none") 570 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 571 else 572 S.Mask = Mask; 573 else if (Mask == XRayInstrKind::All) 574 S.Mask = Mask; 575 else 576 S.set(Mask, true); 577 } 578 } 579 580 // Set the profile kind for fprofile-instrument. 581 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 582 DiagnosticsEngine &Diags) { 583 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 584 if (A == nullptr) 585 return; 586 StringRef S = A->getValue(); 587 unsigned I = llvm::StringSwitch<unsigned>(S) 588 .Case("none", CodeGenOptions::ProfileNone) 589 .Case("clang", CodeGenOptions::ProfileClangInstr) 590 .Case("llvm", CodeGenOptions::ProfileIRInstr) 591 .Default(~0U); 592 if (I == ~0U) { 593 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 594 << S; 595 return; 596 } 597 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 598 Opts.setProfileInstr(Instrumentor); 599 } 600 601 // Set the profile kind using fprofile-instrument-use-path. 602 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 603 const Twine &ProfileName) { 604 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 605 // In error, return silently and let Clang PGOUse report the error message. 606 if (auto E = ReaderOrErr.takeError()) { 607 llvm::consumeError(std::move(E)); 608 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 609 return; 610 } 611 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 612 std::move(ReaderOrErr.get()); 613 if (PGOReader->isIRLevelProfile()) 614 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 615 else 616 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 617 } 618 619 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 620 DiagnosticsEngine &Diags, 621 const TargetOptions &TargetOpts, 622 const FrontendOptions &FrontendOpts) { 623 bool Success = true; 624 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 625 626 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 627 // TODO: This could be done in Driver 628 unsigned MaxOptLevel = 3; 629 if (OptimizationLevel > MaxOptLevel) { 630 // If the optimization level is not supported, fall back on the default 631 // optimization 632 Diags.Report(diag::warn_drv_optimization_value) 633 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 634 OptimizationLevel = MaxOptLevel; 635 } 636 Opts.OptimizationLevel = OptimizationLevel; 637 638 // At O0 we want to fully disable inlining outside of cases marked with 639 // 'alwaysinline' that are required for correctness. 640 Opts.setInlining((Opts.OptimizationLevel == 0) 641 ? CodeGenOptions::OnlyAlwaysInlining 642 : CodeGenOptions::NormalInlining); 643 // Explicit inlining flags can disable some or all inlining even at 644 // optimization levels above zero. 645 if (Arg *InlineArg = Args.getLastArg( 646 options::OPT_finline_functions, options::OPT_finline_hint_functions, 647 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 648 if (Opts.OptimizationLevel > 0) { 649 const Option &InlineOpt = InlineArg->getOption(); 650 if (InlineOpt.matches(options::OPT_finline_functions)) 651 Opts.setInlining(CodeGenOptions::NormalInlining); 652 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 653 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 654 else 655 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 656 } 657 } 658 659 Opts.ExperimentalNewPassManager = Args.hasFlag( 660 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 661 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 662 663 Opts.DebugPassManager = 664 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 665 /* Default */ false); 666 667 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 668 StringRef Name = A->getValue(); 669 if (Name == "Accelerate") 670 Opts.setVecLib(CodeGenOptions::Accelerate); 671 else if (Name == "SVML") 672 Opts.setVecLib(CodeGenOptions::SVML); 673 else if (Name == "none") 674 Opts.setVecLib(CodeGenOptions::NoLibrary); 675 else 676 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 677 } 678 679 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 680 unsigned Val = 681 llvm::StringSwitch<unsigned>(A->getValue()) 682 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 683 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 684 .Case("limited", codegenoptions::LimitedDebugInfo) 685 .Case("standalone", codegenoptions::FullDebugInfo) 686 .Default(~0U); 687 if (Val == ~0U) 688 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 689 << A->getValue(); 690 else 691 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 692 } 693 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 694 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 695 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 696 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 697 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 698 .Default(~0U); 699 if (Val == ~0U) 700 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 701 << A->getValue(); 702 else 703 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 704 } 705 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 706 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 707 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 708 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 709 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 710 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 711 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 712 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 713 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 714 715 if (Arg *A = 716 Args.getLastArg(OPT_enable_split_dwarf, OPT_enable_split_dwarf_EQ)) { 717 if (A->getOption().matches(options::OPT_enable_split_dwarf)) { 718 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 719 } else { 720 StringRef Name = A->getValue(); 721 if (Name == "single") 722 Opts.setSplitDwarfMode(CodeGenOptions::SingleFileFission); 723 else if (Name == "split") 724 Opts.setSplitDwarfMode(CodeGenOptions::SplitFileFission); 725 else 726 Diags.Report(diag::err_drv_invalid_value) 727 << A->getAsString(Args) << Name; 728 } 729 } 730 731 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 732 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 733 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 734 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 735 736 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 737 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 738 739 if (const Arg *A = 740 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 741 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 742 743 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 744 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 745 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 746 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 747 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 748 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 749 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 750 OPT_fuse_register_sized_bitfield_access); 751 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 752 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 753 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 754 Args.hasArg(OPT_new_struct_path_tbaa); 755 Opts.FineGrainedBitfieldAccesses = 756 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 757 OPT_fno_fine_grained_bitfield_accesses, false); 758 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 759 Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line); 760 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 761 Opts.NoCommon = Args.hasArg(OPT_fno_common); 762 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 763 Opts.OptimizeSize = getOptimizationLevelSize(Args); 764 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 765 Args.hasArg(OPT_ffreestanding)); 766 if (Opts.SimplifyLibCalls) 767 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 768 Opts.UnrollLoops = 769 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 770 (Opts.OptimizationLevel > 1)); 771 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 772 773 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 774 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 775 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 776 Opts.DebugInfoForProfiling = Args.hasFlag( 777 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 778 Opts.DebugNameTable = static_cast<unsigned>( 779 Args.hasArg(OPT_ggnu_pubnames) 780 ? llvm::DICompileUnit::DebugNameTableKind::GNU 781 : Args.hasArg(OPT_gpubnames) 782 ? llvm::DICompileUnit::DebugNameTableKind::Default 783 : llvm::DICompileUnit::DebugNameTableKind::None); 784 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 785 786 setPGOInstrumentor(Opts, Args, Diags); 787 Opts.InstrProfileOutput = 788 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 789 Opts.ProfileInstrumentUsePath = 790 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 791 if (!Opts.ProfileInstrumentUsePath.empty()) 792 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 793 Opts.ProfileRemappingFile = 794 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ); 795 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 796 Diags.Report(diag::err_drv_argument_only_allowed_with) 797 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 798 << "-fexperimental-new-pass-manager"; 799 } 800 801 Opts.CoverageMapping = 802 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 803 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 804 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 805 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 806 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 807 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 808 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 809 Opts.RegisterGlobalDtorsWithAtExit = 810 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 811 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 812 Opts.CodeModel = TargetOpts.CodeModel; 813 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 814 Opts.DisableFPElim = 815 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 816 Opts.DisableFree = Args.hasArg(OPT_disable_free); 817 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 818 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 819 Opts.NoEscapingBlockTailCalls = 820 Args.hasArg(OPT_fno_escaping_block_tail_calls); 821 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 822 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 823 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 824 Args.hasArg(OPT_cl_fast_relaxed_math); 825 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 826 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 827 Args.hasArg(OPT_cl_finite_math_only) || 828 Args.hasArg(OPT_cl_fast_relaxed_math)); 829 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 830 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 831 Args.hasArg(OPT_cl_finite_math_only) || 832 Args.hasArg(OPT_cl_fast_relaxed_math)); 833 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 834 Args.hasArg(OPT_cl_no_signed_zeros) || 835 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 836 Args.hasArg(OPT_cl_fast_relaxed_math)); 837 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 838 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) || 839 (Args.hasArg(OPT_fcuda_is_device) && 840 Args.hasArg(OPT_fcuda_flush_denormals_to_zero)); 841 Opts.CorrectlyRoundedDivSqrt = 842 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 843 Opts.UniformWGSize = 844 Args.hasArg(OPT_cl_uniform_work_group_size); 845 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 846 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 847 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 848 Opts.StrictFloatCastOverflow = 849 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 850 851 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 852 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 853 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 854 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 855 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 856 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 857 Opts.IncrementalLinkerCompatible = 858 Args.hasArg(OPT_mincremental_linker_compatible); 859 Opts.PIECopyRelocations = 860 Args.hasArg(OPT_mpie_copy_relocations); 861 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 862 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 863 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 864 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 865 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 866 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 867 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 868 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 869 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 870 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 871 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 872 Args.hasArg(OPT_cl_fast_relaxed_math); 873 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 874 Opts.RelocationModel = getRelocModel(Args, Diags); 875 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 876 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 877 Diags.Report(diag::err_drv_invalid_value) 878 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 879 << Opts.ThreadModel; 880 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 881 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 882 883 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 884 OPT_fno_function_sections, false); 885 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 886 OPT_fno_data_sections, false); 887 Opts.StackSizeSection = 888 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false); 889 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 890 OPT_fno_unique_section_names, true); 891 892 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 893 894 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 895 896 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 897 898 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 899 900 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 901 Opts.PrepareForThinLTO = false; 902 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 903 StringRef S = A->getValue(); 904 if (S == "thin") 905 Opts.PrepareForThinLTO = true; 906 else if (S != "full") 907 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 908 } 909 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 910 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 911 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 912 if (IK.getLanguage() != InputKind::LLVM_IR) 913 Diags.Report(diag::err_drv_argument_only_allowed_with) 914 << A->getAsString(Args) << "-x ir"; 915 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 916 } 917 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 918 Opts.SaveTempsFilePrefix = 919 llvm::StringSwitch<std::string>(A->getValue()) 920 .Case("obj", FrontendOpts.OutputFile) 921 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 922 923 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ); 924 925 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 926 927 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 928 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 929 930 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ); 931 932 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 933 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 934 935 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 936 937 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 938 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 939 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 940 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 941 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 942 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 943 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 944 Opts.CoverageNoFunctionNamesInData = 945 Args.hasArg(OPT_coverage_no_function_names_in_data); 946 Opts.ProfileFilterFiles = 947 Args.getLastArgValue(OPT_fprofile_filter_files_EQ); 948 Opts.ProfileExcludeFiles = 949 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ); 950 Opts.CoverageExitBlockBeforeBody = 951 Args.hasArg(OPT_coverage_exit_block_before_body); 952 if (Args.hasArg(OPT_coverage_version_EQ)) { 953 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 954 if (CoverageVersion.size() != 4) { 955 Diags.Report(diag::err_drv_invalid_value) 956 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 957 << CoverageVersion; 958 } else { 959 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 960 } 961 } 962 } 963 // Handle -fembed-bitcode option. 964 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 965 StringRef Name = A->getValue(); 966 unsigned Model = llvm::StringSwitch<unsigned>(Name) 967 .Case("off", CodeGenOptions::Embed_Off) 968 .Case("all", CodeGenOptions::Embed_All) 969 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 970 .Case("marker", CodeGenOptions::Embed_Marker) 971 .Default(~0U); 972 if (Model == ~0U) { 973 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 974 Success = false; 975 } else 976 Opts.setEmbedBitcode( 977 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 978 } 979 // FIXME: For backend options that are not yet recorded as function 980 // attributes in the IR, keep track of them so we can embed them in a 981 // separate data section and use them when building the bitcode. 982 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 983 for (const auto &A : Args) { 984 // Do not encode output and input. 985 if (A->getOption().getID() == options::OPT_o || 986 A->getOption().getID() == options::OPT_INPUT || 987 A->getOption().getID() == options::OPT_x || 988 A->getOption().getID() == options::OPT_fembed_bitcode || 989 (A->getOption().getGroup().isValid() && 990 A->getOption().getGroup().getID() == options::OPT_W_Group)) 991 continue; 992 ArgStringList ASL; 993 A->render(Args, ASL); 994 for (const auto &arg : ASL) { 995 StringRef ArgStr(arg); 996 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 997 // using \00 to separate each commandline options. 998 Opts.CmdArgs.push_back('\0'); 999 } 1000 } 1001 } 1002 1003 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1004 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1005 Opts.InstrumentFunctionsAfterInlining = 1006 Args.hasArg(OPT_finstrument_functions_after_inlining); 1007 Opts.InstrumentFunctionEntryBare = 1008 Args.hasArg(OPT_finstrument_function_entry_bare); 1009 1010 Opts.XRayInstrumentFunctions = 1011 Args.hasArg(OPT_fxray_instrument); 1012 Opts.XRayAlwaysEmitCustomEvents = 1013 Args.hasArg(OPT_fxray_always_emit_customevents); 1014 Opts.XRayAlwaysEmitTypedEvents = 1015 Args.hasArg(OPT_fxray_always_emit_typedevents); 1016 Opts.XRayInstructionThreshold = 1017 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1018 1019 auto XRayInstrBundles = 1020 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1021 if (XRayInstrBundles.empty()) 1022 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1023 else 1024 for (const auto &A : XRayInstrBundles) 1025 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1026 Diags, Opts.XRayInstrumentationBundle); 1027 1028 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1029 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1030 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1031 1032 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1033 StringRef Name = A->getValue(); 1034 if (Name == "full") { 1035 Opts.CFProtectionReturn = 1; 1036 Opts.CFProtectionBranch = 1; 1037 } else if (Name == "return") 1038 Opts.CFProtectionReturn = 1; 1039 else if (Name == "branch") 1040 Opts.CFProtectionBranch = 1; 1041 else if (Name != "none") { 1042 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1043 Success = false; 1044 } 1045 } 1046 1047 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1048 OPT_compress_debug_sections_EQ)) { 1049 if (A->getOption().getID() == OPT_compress_debug_sections) { 1050 // TODO: be more clever about the compression type auto-detection 1051 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1052 } else { 1053 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1054 .Case("none", llvm::DebugCompressionType::None) 1055 .Case("zlib", llvm::DebugCompressionType::Z) 1056 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1057 .Default(llvm::DebugCompressionType::None); 1058 Opts.setCompressDebugSections(DCT); 1059 } 1060 } 1061 1062 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1063 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1064 for (auto *A : 1065 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1066 CodeGenOptions::BitcodeFileToLink F; 1067 F.Filename = A->getValue(); 1068 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1069 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1070 // When linking CUDA bitcode, propagate function attributes so that 1071 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1072 F.PropagateAttrs = true; 1073 F.Internalize = true; 1074 } 1075 Opts.LinkBitcodeFiles.push_back(F); 1076 } 1077 Opts.SanitizeCoverageType = 1078 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1079 Opts.SanitizeCoverageIndirectCalls = 1080 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1081 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1082 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1083 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1084 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1085 Opts.SanitizeCoverage8bitCounters = 1086 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1087 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1088 Opts.SanitizeCoverageTracePCGuard = 1089 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1090 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1091 Opts.SanitizeCoverageInline8bitCounters = 1092 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1093 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1094 Opts.SanitizeCoverageStackDepth = 1095 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1096 Opts.SanitizeMemoryTrackOrigins = 1097 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1098 Opts.SanitizeMemoryUseAfterDtor = 1099 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1100 OPT_fno_sanitize_memory_use_after_dtor, 1101 false); 1102 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1103 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1104 Opts.SanitizeCfiICallGeneralizePointers = 1105 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1106 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1107 if (Arg *A = Args.getLastArg( 1108 OPT_fsanitize_address_poison_custom_array_cookie, 1109 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1110 Opts.SanitizeAddressPoisonCustomArrayCookie = 1111 A->getOption().getID() == 1112 OPT_fsanitize_address_poison_custom_array_cookie; 1113 } 1114 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1115 OPT_fno_sanitize_address_use_after_scope)) { 1116 Opts.SanitizeAddressUseAfterScope = 1117 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1118 } 1119 Opts.SanitizeAddressGlobalsDeadStripping = 1120 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1121 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1122 OPT_fno_sanitize_address_use_odr_indicator)) { 1123 Opts.SanitizeAddressUseOdrIndicator = 1124 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1125 } 1126 Opts.SSPBufferSize = 1127 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1128 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1129 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1130 StringRef Val = A->getValue(); 1131 unsigned StackAlignment = Opts.StackAlignment; 1132 Val.getAsInteger(10, StackAlignment); 1133 Opts.StackAlignment = StackAlignment; 1134 } 1135 1136 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1137 StringRef Val = A->getValue(); 1138 unsigned StackProbeSize = Opts.StackProbeSize; 1139 Val.getAsInteger(0, StackProbeSize); 1140 Opts.StackProbeSize = StackProbeSize; 1141 } 1142 1143 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1144 1145 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1146 StringRef Name = A->getValue(); 1147 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1148 .Case("legacy", CodeGenOptions::Legacy) 1149 .Case("non-legacy", CodeGenOptions::NonLegacy) 1150 .Case("mixed", CodeGenOptions::Mixed) 1151 .Default(~0U); 1152 if (Method == ~0U) { 1153 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1154 Success = false; 1155 } else { 1156 Opts.setObjCDispatchMethod( 1157 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1158 } 1159 } 1160 1161 1162 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1163 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1164 1165 if (Args.getLastArg(OPT_femulated_tls) || 1166 Args.getLastArg(OPT_fno_emulated_tls)) { 1167 Opts.ExplicitEmulatedTLS = true; 1168 Opts.EmulatedTLS = 1169 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1170 } 1171 1172 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1173 StringRef Name = A->getValue(); 1174 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1175 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1176 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1177 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1178 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1179 .Default(~0U); 1180 if (Model == ~0U) { 1181 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1182 Success = false; 1183 } else { 1184 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1185 } 1186 } 1187 1188 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1189 StringRef Val = A->getValue(); 1190 if (Val == "ieee") 1191 Opts.FPDenormalMode = "ieee"; 1192 else if (Val == "preserve-sign") 1193 Opts.FPDenormalMode = "preserve-sign"; 1194 else if (Val == "positive-zero") 1195 Opts.FPDenormalMode = "positive-zero"; 1196 else 1197 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1198 } 1199 1200 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 1201 if (A->getOption().matches(OPT_fpcc_struct_return)) { 1202 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1203 } else { 1204 assert(A->getOption().matches(OPT_freg_struct_return)); 1205 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1206 } 1207 } 1208 1209 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1210 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1211 bool NeedLocTracking = false; 1212 1213 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 1214 if (!Opts.OptRecordFile.empty()) 1215 NeedLocTracking = true; 1216 1217 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1218 Opts.OptimizationRemarkPattern = 1219 GenerateOptimizationRemarkRegex(Diags, Args, A); 1220 NeedLocTracking = true; 1221 } 1222 1223 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1224 Opts.OptimizationRemarkMissedPattern = 1225 GenerateOptimizationRemarkRegex(Diags, Args, A); 1226 NeedLocTracking = true; 1227 } 1228 1229 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1230 Opts.OptimizationRemarkAnalysisPattern = 1231 GenerateOptimizationRemarkRegex(Diags, Args, A); 1232 NeedLocTracking = true; 1233 } 1234 1235 Opts.DiagnosticsWithHotness = 1236 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1237 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1238 bool UsingProfile = UsingSampleProfile || 1239 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1240 1241 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1242 // An IR file will contain PGO as metadata 1243 IK.getLanguage() != InputKind::LLVM_IR) 1244 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1245 << "-fdiagnostics-show-hotness"; 1246 1247 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1248 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1249 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1250 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1251 << "-fdiagnostics-hotness-threshold="; 1252 1253 // If the user requested to use a sample profile for PGO, then the 1254 // backend will need to track source location information so the profile 1255 // can be incorporated into the IR. 1256 if (UsingSampleProfile) 1257 NeedLocTracking = true; 1258 1259 // If the user requested a flag that requires source locations available in 1260 // the backend, make sure that the backend tracks source location information. 1261 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1262 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1263 1264 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1265 1266 // Parse -fsanitize-recover= arguments. 1267 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1268 parseSanitizerKinds("-fsanitize-recover=", 1269 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1270 Opts.SanitizeRecover); 1271 parseSanitizerKinds("-fsanitize-trap=", 1272 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1273 Opts.SanitizeTrap); 1274 1275 Opts.CudaGpuBinaryFileName = 1276 Args.getLastArgValue(OPT_fcuda_include_gpubinary); 1277 1278 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1279 1280 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1281 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1282 1283 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1284 1285 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1286 1287 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 1288 StringRef SignScope = A->getValue(); 1289 1290 if (SignScope.equals_lower("none")) 1291 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None); 1292 else if (SignScope.equals_lower("all")) 1293 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All); 1294 else if (SignScope.equals_lower("non-leaf")) 1295 Opts.setSignReturnAddress( 1296 CodeGenOptions::SignReturnAddressScope::NonLeaf); 1297 else 1298 Diags.Report(diag::err_drv_invalid_value) 1299 << A->getAsString(Args) << SignScope; 1300 1301 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 1302 StringRef SignKey = A->getValue(); 1303 if (!SignScope.empty() && !SignKey.empty()) { 1304 if (SignKey.equals_lower("a_key")) 1305 Opts.setSignReturnAddressKey( 1306 CodeGenOptions::SignReturnAddressKeyValue::AKey); 1307 else if (SignKey.equals_lower("b_key")) 1308 Opts.setSignReturnAddressKey( 1309 CodeGenOptions::SignReturnAddressKeyValue::BKey); 1310 else 1311 Diags.Report(diag::err_drv_invalid_value) 1312 << A->getAsString(Args) << SignKey; 1313 } 1314 } 1315 } 1316 1317 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 1318 1319 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1320 1321 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1322 1323 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1324 1325 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1326 1327 return Success; 1328 } 1329 1330 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1331 ArgList &Args) { 1332 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1333 Opts.Targets = Args.getAllArgValues(OPT_MT); 1334 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1335 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1336 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1337 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1338 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1339 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1340 if (Args.hasArg(OPT_show_includes)) { 1341 // Writing both /showIncludes and preprocessor output to stdout 1342 // would produce interleaved output, so use stderr for /showIncludes. 1343 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1344 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1345 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1346 else 1347 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1348 } else { 1349 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1350 } 1351 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1352 Opts.ModuleDependencyOutputDir = 1353 Args.getLastArgValue(OPT_module_dependency_dir); 1354 if (Args.hasArg(OPT_MV)) 1355 Opts.OutputFormat = DependencyOutputFormat::NMake; 1356 // Add sanitizer blacklists as extra dependencies. 1357 // They won't be discovered by the regular preprocessor, so 1358 // we let make / ninja to know about this implicit dependency. 1359 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 1360 // Only the -fmodule-file=<file> form. 1361 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1362 StringRef Val = A->getValue(); 1363 if (Val.find('=') == StringRef::npos) 1364 Opts.ExtraDeps.push_back(Val); 1365 } 1366 } 1367 1368 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1369 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1370 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1371 // Support both clang's -f[no-]color-diagnostics and gcc's 1372 // -f[no-]diagnostics-colors[=never|always|auto]. 1373 enum { 1374 Colors_On, 1375 Colors_Off, 1376 Colors_Auto 1377 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1378 for (auto *A : Args) { 1379 const Option &O = A->getOption(); 1380 if (O.matches(options::OPT_fcolor_diagnostics) || 1381 O.matches(options::OPT_fdiagnostics_color)) { 1382 ShowColors = Colors_On; 1383 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1384 O.matches(options::OPT_fno_diagnostics_color)) { 1385 ShowColors = Colors_Off; 1386 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1387 StringRef Value(A->getValue()); 1388 if (Value == "always") 1389 ShowColors = Colors_On; 1390 else if (Value == "never") 1391 ShowColors = Colors_Off; 1392 else if (Value == "auto") 1393 ShowColors = Colors_Auto; 1394 } 1395 } 1396 return ShowColors == Colors_On || 1397 (ShowColors == Colors_Auto && 1398 llvm::sys::Process::StandardErrHasColors()); 1399 } 1400 1401 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1402 DiagnosticsEngine *Diags) { 1403 bool Success = true; 1404 for (const auto &Prefix : VerifyPrefixes) { 1405 // Every prefix must start with a letter and contain only alphanumeric 1406 // characters, hyphens, and underscores. 1407 auto BadChar = std::find_if(Prefix.begin(), Prefix.end(), 1408 [](char C){return !isAlphanumeric(C) 1409 && C != '-' && C != '_';}); 1410 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1411 Success = false; 1412 if (Diags) { 1413 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1414 Diags->Report(diag::note_drv_verify_prefix_spelling); 1415 } 1416 } 1417 } 1418 return Success; 1419 } 1420 1421 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1422 DiagnosticsEngine *Diags, 1423 bool DefaultDiagColor, bool DefaultShowOpt) { 1424 bool Success = true; 1425 1426 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1427 if (Arg *A = 1428 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1429 Opts.DiagnosticSerializationFile = A->getValue(); 1430 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1431 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1432 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1433 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1434 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1435 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1436 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1437 OPT_fno_show_column, 1438 /*Default=*/true); 1439 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1440 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1441 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1442 Opts.ShowOptionNames = 1443 Args.hasFlag(OPT_fdiagnostics_show_option, 1444 OPT_fno_diagnostics_show_option, DefaultShowOpt); 1445 1446 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1447 1448 // Default behavior is to not to show note include stacks. 1449 Opts.ShowNoteIncludeStack = false; 1450 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1451 OPT_fno_diagnostics_show_note_include_stack)) 1452 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1453 Opts.ShowNoteIncludeStack = true; 1454 1455 StringRef ShowOverloads = 1456 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1457 if (ShowOverloads == "best") 1458 Opts.setShowOverloads(Ovl_Best); 1459 else if (ShowOverloads == "all") 1460 Opts.setShowOverloads(Ovl_All); 1461 else { 1462 Success = false; 1463 if (Diags) 1464 Diags->Report(diag::err_drv_invalid_value) 1465 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1466 << ShowOverloads; 1467 } 1468 1469 StringRef ShowCategory = 1470 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1471 if (ShowCategory == "none") 1472 Opts.ShowCategories = 0; 1473 else if (ShowCategory == "id") 1474 Opts.ShowCategories = 1; 1475 else if (ShowCategory == "name") 1476 Opts.ShowCategories = 2; 1477 else { 1478 Success = false; 1479 if (Diags) 1480 Diags->Report(diag::err_drv_invalid_value) 1481 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1482 << ShowCategory; 1483 } 1484 1485 StringRef Format = 1486 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1487 if (Format == "clang") 1488 Opts.setFormat(DiagnosticOptions::Clang); 1489 else if (Format == "msvc") 1490 Opts.setFormat(DiagnosticOptions::MSVC); 1491 else if (Format == "msvc-fallback") { 1492 Opts.setFormat(DiagnosticOptions::MSVC); 1493 Opts.CLFallbackMode = true; 1494 } else if (Format == "vi") 1495 Opts.setFormat(DiagnosticOptions::Vi); 1496 else { 1497 Success = false; 1498 if (Diags) 1499 Diags->Report(diag::err_drv_invalid_value) 1500 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1501 << Format; 1502 } 1503 1504 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1505 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1506 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1507 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1508 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1509 if (Args.hasArg(OPT_verify)) 1510 Opts.VerifyPrefixes.push_back("expected"); 1511 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1512 // then sort it to prepare for fast lookup using std::binary_search. 1513 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1514 Opts.VerifyDiagnostics = false; 1515 Success = false; 1516 } 1517 else 1518 llvm::sort(Opts.VerifyPrefixes); 1519 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1520 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1521 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1522 Diags, DiagMask); 1523 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1524 DiagMask = DiagnosticLevelMask::All; 1525 Opts.setVerifyIgnoreUnexpected(DiagMask); 1526 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1527 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1528 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1529 Opts.MacroBacktraceLimit = 1530 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1531 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1532 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1533 Args, OPT_ftemplate_backtrace_limit, 1534 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1535 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1536 Args, OPT_fconstexpr_backtrace_limit, 1537 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1538 Opts.SpellCheckingLimit = getLastArgIntValue( 1539 Args, OPT_fspell_checking_limit, 1540 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1541 Opts.SnippetLineLimit = getLastArgIntValue( 1542 Args, OPT_fcaret_diagnostics_max_lines, 1543 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1544 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1545 DiagnosticOptions::DefaultTabStop, Diags); 1546 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1547 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1548 if (Diags) 1549 Diags->Report(diag::warn_ignoring_ftabstop_value) 1550 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1551 } 1552 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1553 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1554 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1555 1556 return Success; 1557 } 1558 1559 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1560 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1561 } 1562 1563 /// Parse the argument to the -ftest-module-file-extension 1564 /// command-line argument. 1565 /// 1566 /// \returns true on error, false on success. 1567 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1568 std::string &BlockName, 1569 unsigned &MajorVersion, 1570 unsigned &MinorVersion, 1571 bool &Hashed, 1572 std::string &UserInfo) { 1573 SmallVector<StringRef, 5> Args; 1574 Arg.split(Args, ':', 5); 1575 if (Args.size() < 5) 1576 return true; 1577 1578 BlockName = Args[0]; 1579 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1580 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1581 if (Args[3].getAsInteger(2, Hashed)) return true; 1582 if (Args.size() > 4) 1583 UserInfo = Args[4]; 1584 return false; 1585 } 1586 1587 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1588 DiagnosticsEngine &Diags, 1589 bool &IsHeaderFile) { 1590 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1591 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1592 switch (A->getOption().getID()) { 1593 default: 1594 llvm_unreachable("Invalid option in group!"); 1595 case OPT_ast_list: 1596 Opts.ProgramAction = frontend::ASTDeclList; break; 1597 case OPT_ast_dump: 1598 case OPT_ast_dump_all: 1599 case OPT_ast_dump_lookups: 1600 Opts.ProgramAction = frontend::ASTDump; break; 1601 case OPT_ast_print: 1602 Opts.ProgramAction = frontend::ASTPrint; break; 1603 case OPT_ast_view: 1604 Opts.ProgramAction = frontend::ASTView; break; 1605 case OPT_compiler_options_dump: 1606 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1607 case OPT_dump_raw_tokens: 1608 Opts.ProgramAction = frontend::DumpRawTokens; break; 1609 case OPT_dump_tokens: 1610 Opts.ProgramAction = frontend::DumpTokens; break; 1611 case OPT_S: 1612 Opts.ProgramAction = frontend::EmitAssembly; break; 1613 case OPT_emit_llvm_bc: 1614 Opts.ProgramAction = frontend::EmitBC; break; 1615 case OPT_emit_html: 1616 Opts.ProgramAction = frontend::EmitHTML; break; 1617 case OPT_emit_llvm: 1618 Opts.ProgramAction = frontend::EmitLLVM; break; 1619 case OPT_emit_llvm_only: 1620 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1621 case OPT_emit_codegen_only: 1622 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1623 case OPT_emit_obj: 1624 Opts.ProgramAction = frontend::EmitObj; break; 1625 case OPT_fixit_EQ: 1626 Opts.FixItSuffix = A->getValue(); 1627 LLVM_FALLTHROUGH; 1628 case OPT_fixit: 1629 Opts.ProgramAction = frontend::FixIt; break; 1630 case OPT_emit_module: 1631 Opts.ProgramAction = frontend::GenerateModule; break; 1632 case OPT_emit_module_interface: 1633 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1634 case OPT_emit_header_module: 1635 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1636 case OPT_emit_pch: 1637 Opts.ProgramAction = frontend::GeneratePCH; break; 1638 case OPT_init_only: 1639 Opts.ProgramAction = frontend::InitOnly; break; 1640 case OPT_fsyntax_only: 1641 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1642 case OPT_module_file_info: 1643 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1644 case OPT_verify_pch: 1645 Opts.ProgramAction = frontend::VerifyPCH; break; 1646 case OPT_print_preamble: 1647 Opts.ProgramAction = frontend::PrintPreamble; break; 1648 case OPT_E: 1649 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1650 case OPT_templight_dump: 1651 Opts.ProgramAction = frontend::TemplightDump; break; 1652 case OPT_rewrite_macros: 1653 Opts.ProgramAction = frontend::RewriteMacros; break; 1654 case OPT_rewrite_objc: 1655 Opts.ProgramAction = frontend::RewriteObjC; break; 1656 case OPT_rewrite_test: 1657 Opts.ProgramAction = frontend::RewriteTest; break; 1658 case OPT_analyze: 1659 Opts.ProgramAction = frontend::RunAnalysis; break; 1660 case OPT_migrate: 1661 Opts.ProgramAction = frontend::MigrateSource; break; 1662 case OPT_Eonly: 1663 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1664 } 1665 } 1666 1667 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1668 Opts.Plugins.emplace_back(A->getValue(0)); 1669 Opts.ProgramAction = frontend::PluginAction; 1670 Opts.ActionName = A->getValue(); 1671 } 1672 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1673 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1674 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1675 1676 for (const std::string &Arg : 1677 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1678 std::string BlockName; 1679 unsigned MajorVersion; 1680 unsigned MinorVersion; 1681 bool Hashed; 1682 std::string UserInfo; 1683 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1684 MinorVersion, Hashed, UserInfo)) { 1685 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1686 1687 continue; 1688 } 1689 1690 // Add the testing module file extension. 1691 Opts.ModuleFileExtensions.push_back( 1692 std::make_shared<TestModuleFileExtension>( 1693 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1694 } 1695 1696 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1697 Opts.CodeCompletionAt = 1698 ParsedSourceLocation::FromString(A->getValue()); 1699 if (Opts.CodeCompletionAt.FileName.empty()) 1700 Diags.Report(diag::err_drv_invalid_value) 1701 << A->getAsString(Args) << A->getValue(); 1702 } 1703 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1704 1705 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1706 Opts.Plugins = Args.getAllArgValues(OPT_load); 1707 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1708 Opts.ShowHelp = Args.hasArg(OPT_help); 1709 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1710 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1711 Opts.ShowVersion = Args.hasArg(OPT_version); 1712 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1713 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1714 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1715 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1716 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1717 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1718 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1719 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all); 1720 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1721 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1722 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1723 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1724 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1725 // Only the -fmodule-file=<file> form. 1726 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1727 StringRef Val = A->getValue(); 1728 if (Val.find('=') == StringRef::npos) 1729 Opts.ModuleFiles.push_back(Val); 1730 } 1731 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1732 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1733 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1734 1735 Opts.CodeCompleteOpts.IncludeMacros 1736 = Args.hasArg(OPT_code_completion_macros); 1737 Opts.CodeCompleteOpts.IncludeCodePatterns 1738 = Args.hasArg(OPT_code_completion_patterns); 1739 Opts.CodeCompleteOpts.IncludeGlobals 1740 = !Args.hasArg(OPT_no_code_completion_globals); 1741 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1742 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1743 Opts.CodeCompleteOpts.IncludeBriefComments 1744 = Args.hasArg(OPT_code_completion_brief_comments); 1745 Opts.CodeCompleteOpts.IncludeFixIts 1746 = Args.hasArg(OPT_code_completion_with_fixits); 1747 1748 Opts.OverrideRecordLayoutsFile 1749 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1750 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple); 1751 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1752 1753 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1754 OPT_arcmt_modify, 1755 OPT_arcmt_migrate)) { 1756 switch (A->getOption().getID()) { 1757 default: 1758 llvm_unreachable("missed a case"); 1759 case OPT_arcmt_check: 1760 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1761 break; 1762 case OPT_arcmt_modify: 1763 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1764 break; 1765 case OPT_arcmt_migrate: 1766 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1767 break; 1768 } 1769 } 1770 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1771 Opts.ARCMTMigrateReportOut 1772 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1773 Opts.ARCMTMigrateEmitARCErrors 1774 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1775 1776 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1777 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1778 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1779 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1780 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1781 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1782 if (Args.hasArg(OPT_objcmt_migrate_property)) 1783 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1784 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1785 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1786 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1787 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1788 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1789 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1790 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1791 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1792 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1793 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1794 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1795 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1796 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1797 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1798 if (Args.hasArg(OPT_objcmt_atomic_property)) 1799 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1800 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1801 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1802 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1803 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1804 if (Args.hasArg(OPT_objcmt_migrate_all)) 1805 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1806 1807 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1808 1809 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1810 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1811 Diags.Report(diag::err_drv_argument_not_allowed_with) 1812 << "ARC migration" << "ObjC migration"; 1813 } 1814 1815 InputKind DashX(InputKind::Unknown); 1816 if (const Arg *A = Args.getLastArg(OPT_x)) { 1817 StringRef XValue = A->getValue(); 1818 1819 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1820 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1821 bool Preprocessed = XValue.consume_back("-cpp-output"); 1822 bool ModuleMap = XValue.consume_back("-module-map"); 1823 IsHeaderFile = 1824 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1825 1826 // Principal languages. 1827 DashX = llvm::StringSwitch<InputKind>(XValue) 1828 .Case("c", InputKind::C) 1829 .Case("cl", InputKind::OpenCL) 1830 .Case("cuda", InputKind::CUDA) 1831 .Case("hip", InputKind::HIP) 1832 .Case("c++", InputKind::CXX) 1833 .Case("objective-c", InputKind::ObjC) 1834 .Case("objective-c++", InputKind::ObjCXX) 1835 .Case("renderscript", InputKind::RenderScript) 1836 .Default(InputKind::Unknown); 1837 1838 // "objc[++]-cpp-output" is an acceptable synonym for 1839 // "objective-c[++]-cpp-output". 1840 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 1841 DashX = llvm::StringSwitch<InputKind>(XValue) 1842 .Case("objc", InputKind::ObjC) 1843 .Case("objc++", InputKind::ObjCXX) 1844 .Default(InputKind::Unknown); 1845 1846 // Some special cases cannot be combined with suffixes. 1847 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 1848 DashX = llvm::StringSwitch<InputKind>(XValue) 1849 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed()) 1850 .Case("assembler-with-cpp", InputKind::Asm) 1851 .Cases("ast", "pcm", 1852 InputKind(InputKind::Unknown, InputKind::Precompiled)) 1853 .Case("ir", InputKind::LLVM_IR) 1854 .Default(InputKind::Unknown); 1855 1856 if (DashX.isUnknown()) 1857 Diags.Report(diag::err_drv_invalid_value) 1858 << A->getAsString(Args) << A->getValue(); 1859 1860 if (Preprocessed) 1861 DashX = DashX.getPreprocessed(); 1862 if (ModuleMap) 1863 DashX = DashX.withFormat(InputKind::ModuleMap); 1864 } 1865 1866 // '-' is the default input if none is given. 1867 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1868 Opts.Inputs.clear(); 1869 if (Inputs.empty()) 1870 Inputs.push_back("-"); 1871 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1872 InputKind IK = DashX; 1873 if (IK.isUnknown()) { 1874 IK = FrontendOptions::getInputKindForExtension( 1875 StringRef(Inputs[i]).rsplit('.').second); 1876 // FIXME: Warn on this? 1877 if (IK.isUnknown()) 1878 IK = InputKind::C; 1879 // FIXME: Remove this hack. 1880 if (i == 0) 1881 DashX = IK; 1882 } 1883 1884 // The -emit-module action implicitly takes a module map. 1885 if (Opts.ProgramAction == frontend::GenerateModule && 1886 IK.getFormat() == InputKind::Source) 1887 IK = IK.withFormat(InputKind::ModuleMap); 1888 1889 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1890 } 1891 1892 return DashX; 1893 } 1894 1895 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1896 void *MainAddr) { 1897 std::string ClangExecutable = 1898 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1899 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 1900 } 1901 1902 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 1903 const std::string &WorkingDir) { 1904 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1905 Opts.Verbose = Args.hasArg(OPT_v); 1906 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1907 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1908 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1909 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1910 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1911 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1912 1913 // Canonicalize -fmodules-cache-path before storing it. 1914 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 1915 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 1916 if (WorkingDir.empty()) 1917 llvm::sys::fs::make_absolute(P); 1918 else 1919 llvm::sys::fs::make_absolute(WorkingDir, P); 1920 } 1921 llvm::sys::path::remove_dots(P); 1922 Opts.ModuleCachePath = P.str(); 1923 1924 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1925 // Only the -fmodule-file=<name>=<file> form. 1926 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1927 StringRef Val = A->getValue(); 1928 if (Val.find('=') != StringRef::npos) 1929 Opts.PrebuiltModuleFiles.insert(Val.split('=')); 1930 } 1931 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 1932 Opts.AddPrebuiltModulePath(A->getValue()); 1933 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1934 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 1935 Opts.ModulesValidateDiagnosticOptions = 1936 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1937 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1938 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1939 Opts.ModuleCachePruneInterval = 1940 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1941 Opts.ModuleCachePruneAfter = 1942 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1943 Opts.ModulesValidateOncePerBuildSession = 1944 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1945 Opts.BuildSessionTimestamp = 1946 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1947 Opts.ModulesValidateSystemHeaders = 1948 Args.hasArg(OPT_fmodules_validate_system_headers); 1949 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1950 Opts.ModuleFormat = A->getValue(); 1951 1952 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1953 StringRef MacroDef = A->getValue(); 1954 Opts.ModulesIgnoreMacros.insert( 1955 llvm::CachedHashString(MacroDef.split('=').first)); 1956 } 1957 1958 // Add -I..., -F..., and -index-header-map options in order. 1959 bool IsIndexHeaderMap = false; 1960 bool IsSysrootSpecified = 1961 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1962 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1963 if (A->getOption().matches(OPT_index_header_map)) { 1964 // -index-header-map applies to the next -I or -F. 1965 IsIndexHeaderMap = true; 1966 continue; 1967 } 1968 1969 frontend::IncludeDirGroup Group = 1970 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1971 1972 bool IsFramework = A->getOption().matches(OPT_F); 1973 std::string Path = A->getValue(); 1974 1975 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1976 SmallString<32> Buffer; 1977 llvm::sys::path::append(Buffer, Opts.Sysroot, 1978 llvm::StringRef(A->getValue()).substr(1)); 1979 Path = Buffer.str(); 1980 } 1981 1982 Opts.AddPath(Path, Group, IsFramework, 1983 /*IgnoreSysroot*/ true); 1984 IsIndexHeaderMap = false; 1985 } 1986 1987 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1988 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1989 for (const auto *A : 1990 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1991 if (A->getOption().matches(OPT_iprefix)) 1992 Prefix = A->getValue(); 1993 else if (A->getOption().matches(OPT_iwithprefix)) 1994 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1995 else 1996 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1997 } 1998 1999 for (const auto *A : Args.filtered(OPT_idirafter)) 2000 Opts.AddPath(A->getValue(), frontend::After, false, true); 2001 for (const auto *A : Args.filtered(OPT_iquote)) 2002 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2003 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2004 Opts.AddPath(A->getValue(), frontend::System, false, 2005 !A->getOption().matches(OPT_iwithsysroot)); 2006 for (const auto *A : Args.filtered(OPT_iframework)) 2007 Opts.AddPath(A->getValue(), frontend::System, true, true); 2008 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2009 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2010 /*IgnoreSysRoot=*/false); 2011 2012 // Add the paths for the various language specific isystem flags. 2013 for (const auto *A : Args.filtered(OPT_c_isystem)) 2014 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2015 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2016 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2017 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2018 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2019 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2020 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2021 2022 // Add the internal paths from a driver that detects standard include paths. 2023 for (const auto *A : 2024 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2025 frontend::IncludeDirGroup Group = frontend::System; 2026 if (A->getOption().matches(OPT_internal_externc_isystem)) 2027 Group = frontend::ExternCSystem; 2028 Opts.AddPath(A->getValue(), Group, false, true); 2029 } 2030 2031 // Add the path prefixes which are implicitly treated as being system headers. 2032 for (const auto *A : 2033 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2034 Opts.AddSystemHeaderPrefix( 2035 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2036 2037 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2038 Opts.AddVFSOverlayFile(A->getValue()); 2039 } 2040 2041 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2042 const llvm::Triple &T, 2043 PreprocessorOptions &PPOpts, 2044 LangStandard::Kind LangStd) { 2045 // Set some properties which depend solely on the input kind; it would be nice 2046 // to move these to the language standard, and have the driver resolve the 2047 // input kind + language standard. 2048 // 2049 // FIXME: Perhaps a better model would be for a single source file to have 2050 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2051 // simultaneously active? 2052 if (IK.getLanguage() == InputKind::Asm) { 2053 Opts.AsmPreprocessor = 1; 2054 } else if (IK.isObjectiveC()) { 2055 Opts.ObjC = 1; 2056 } 2057 2058 if (LangStd == LangStandard::lang_unspecified) { 2059 // Based on the base language, pick one. 2060 switch (IK.getLanguage()) { 2061 case InputKind::Unknown: 2062 case InputKind::LLVM_IR: 2063 llvm_unreachable("Invalid input kind!"); 2064 case InputKind::OpenCL: 2065 LangStd = LangStandard::lang_opencl10; 2066 break; 2067 case InputKind::CUDA: 2068 LangStd = LangStandard::lang_cuda; 2069 break; 2070 case InputKind::Asm: 2071 case InputKind::C: 2072 #if defined(CLANG_DEFAULT_STD_C) 2073 LangStd = CLANG_DEFAULT_STD_C; 2074 #else 2075 // The PS4 uses C99 as the default C standard. 2076 if (T.isPS4()) 2077 LangStd = LangStandard::lang_gnu99; 2078 else 2079 LangStd = LangStandard::lang_gnu11; 2080 #endif 2081 break; 2082 case InputKind::ObjC: 2083 #if defined(CLANG_DEFAULT_STD_C) 2084 LangStd = CLANG_DEFAULT_STD_C; 2085 #else 2086 LangStd = LangStandard::lang_gnu11; 2087 #endif 2088 break; 2089 case InputKind::CXX: 2090 case InputKind::ObjCXX: 2091 #if defined(CLANG_DEFAULT_STD_CXX) 2092 LangStd = CLANG_DEFAULT_STD_CXX; 2093 #else 2094 LangStd = LangStandard::lang_gnucxx14; 2095 #endif 2096 break; 2097 case InputKind::RenderScript: 2098 LangStd = LangStandard::lang_c99; 2099 break; 2100 case InputKind::HIP: 2101 LangStd = LangStandard::lang_hip; 2102 break; 2103 } 2104 } 2105 2106 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2107 Opts.LineComment = Std.hasLineComments(); 2108 Opts.C99 = Std.isC99(); 2109 Opts.C11 = Std.isC11(); 2110 Opts.C17 = Std.isC17(); 2111 Opts.CPlusPlus = Std.isCPlusPlus(); 2112 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2113 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2114 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2115 Opts.CPlusPlus2a = Std.isCPlusPlus2a(); 2116 Opts.Digraphs = Std.hasDigraphs(); 2117 Opts.GNUMode = Std.isGNUMode(); 2118 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2119 Opts.HexFloats = Std.hasHexFloats(); 2120 Opts.ImplicitInt = Std.hasImplicitInt(); 2121 2122 // Set OpenCL Version. 2123 Opts.OpenCL = Std.isOpenCL(); 2124 if (LangStd == LangStandard::lang_opencl10) 2125 Opts.OpenCLVersion = 100; 2126 else if (LangStd == LangStandard::lang_opencl11) 2127 Opts.OpenCLVersion = 110; 2128 else if (LangStd == LangStandard::lang_opencl12) 2129 Opts.OpenCLVersion = 120; 2130 else if (LangStd == LangStandard::lang_opencl20) 2131 Opts.OpenCLVersion = 200; 2132 else if (LangStd == LangStandard::lang_openclcpp) 2133 Opts.OpenCLCPlusPlusVersion = 100; 2134 2135 // OpenCL has some additional defaults. 2136 if (Opts.OpenCL) { 2137 Opts.AltiVec = 0; 2138 Opts.ZVector = 0; 2139 Opts.LaxVectorConversions = 0; 2140 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2141 Opts.NativeHalfType = 1; 2142 Opts.NativeHalfArgsAndReturns = 1; 2143 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2144 // Include default header file for OpenCL. 2145 if (Opts.IncludeDefaultHeader) { 2146 PPOpts.Includes.push_back("opencl-c.h"); 2147 } 2148 } 2149 2150 Opts.HIP = IK.getLanguage() == InputKind::HIP; 2151 Opts.CUDA = IK.getLanguage() == InputKind::CUDA || Opts.HIP; 2152 if (Opts.CUDA) 2153 // Set default FP_CONTRACT to FAST. 2154 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2155 2156 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript; 2157 if (Opts.RenderScript) { 2158 Opts.NativeHalfType = 1; 2159 Opts.NativeHalfArgsAndReturns = 1; 2160 } 2161 2162 // OpenCL and C++ both have bool, true, false keywords. 2163 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2164 2165 // OpenCL has half keyword 2166 Opts.Half = Opts.OpenCL; 2167 2168 // C++ has wchar_t keyword. 2169 Opts.WChar = Opts.CPlusPlus; 2170 2171 Opts.GNUKeywords = Opts.GNUMode; 2172 Opts.CXXOperatorNames = Opts.CPlusPlus; 2173 2174 Opts.AlignedAllocation = Opts.CPlusPlus17; 2175 2176 Opts.DollarIdents = !Opts.AsmPreprocessor; 2177 } 2178 2179 /// Attempt to parse a visibility value out of the given argument. 2180 static Visibility parseVisibility(Arg *arg, ArgList &args, 2181 DiagnosticsEngine &diags) { 2182 StringRef value = arg->getValue(); 2183 if (value == "default") { 2184 return DefaultVisibility; 2185 } else if (value == "hidden" || value == "internal") { 2186 return HiddenVisibility; 2187 } else if (value == "protected") { 2188 // FIXME: diagnose if target does not support protected visibility 2189 return ProtectedVisibility; 2190 } 2191 2192 diags.Report(diag::err_drv_invalid_value) 2193 << arg->getAsString(args) << value; 2194 return DefaultVisibility; 2195 } 2196 2197 /// Check if input file kind and language standard are compatible. 2198 static bool IsInputCompatibleWithStandard(InputKind IK, 2199 const LangStandard &S) { 2200 switch (IK.getLanguage()) { 2201 case InputKind::Unknown: 2202 case InputKind::LLVM_IR: 2203 llvm_unreachable("should not parse language flags for this input"); 2204 2205 case InputKind::C: 2206 case InputKind::ObjC: 2207 case InputKind::RenderScript: 2208 return S.getLanguage() == InputKind::C; 2209 2210 case InputKind::OpenCL: 2211 return S.getLanguage() == InputKind::OpenCL; 2212 2213 case InputKind::CXX: 2214 case InputKind::ObjCXX: 2215 return S.getLanguage() == InputKind::CXX; 2216 2217 case InputKind::CUDA: 2218 // FIXME: What -std= values should be permitted for CUDA compilations? 2219 return S.getLanguage() == InputKind::CUDA || 2220 S.getLanguage() == InputKind::CXX; 2221 2222 case InputKind::HIP: 2223 return S.getLanguage() == InputKind::CXX || 2224 S.getLanguage() == InputKind::HIP; 2225 2226 case InputKind::Asm: 2227 // Accept (and ignore) all -std= values. 2228 // FIXME: The -std= value is not ignored; it affects the tokenization 2229 // and preprocessing rules if we're preprocessing this asm input. 2230 return true; 2231 } 2232 2233 llvm_unreachable("unexpected input language"); 2234 } 2235 2236 /// Get language name for given input kind. 2237 static const StringRef GetInputKindName(InputKind IK) { 2238 switch (IK.getLanguage()) { 2239 case InputKind::C: 2240 return "C"; 2241 case InputKind::ObjC: 2242 return "Objective-C"; 2243 case InputKind::CXX: 2244 return "C++"; 2245 case InputKind::ObjCXX: 2246 return "Objective-C++"; 2247 case InputKind::OpenCL: 2248 return "OpenCL"; 2249 case InputKind::CUDA: 2250 return "CUDA"; 2251 case InputKind::RenderScript: 2252 return "RenderScript"; 2253 case InputKind::HIP: 2254 return "HIP"; 2255 2256 case InputKind::Asm: 2257 return "Asm"; 2258 case InputKind::LLVM_IR: 2259 return "LLVM IR"; 2260 2261 case InputKind::Unknown: 2262 break; 2263 } 2264 llvm_unreachable("unknown input language"); 2265 } 2266 2267 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2268 const TargetOptions &TargetOpts, 2269 PreprocessorOptions &PPOpts, 2270 DiagnosticsEngine &Diags) { 2271 // FIXME: Cleanup per-file based stuff. 2272 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2273 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2274 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2275 #define LANGSTANDARD(id, name, lang, desc, features) \ 2276 .Case(name, LangStandard::lang_##id) 2277 #define LANGSTANDARD_ALIAS(id, alias) \ 2278 .Case(alias, LangStandard::lang_##id) 2279 #include "clang/Frontend/LangStandards.def" 2280 .Default(LangStandard::lang_unspecified); 2281 if (LangStd == LangStandard::lang_unspecified) { 2282 Diags.Report(diag::err_drv_invalid_value) 2283 << A->getAsString(Args) << A->getValue(); 2284 // Report supported standards with short description. 2285 for (unsigned KindValue = 0; 2286 KindValue != LangStandard::lang_unspecified; 2287 ++KindValue) { 2288 const LangStandard &Std = LangStandard::getLangStandardForKind( 2289 static_cast<LangStandard::Kind>(KindValue)); 2290 if (IsInputCompatibleWithStandard(IK, Std)) { 2291 auto Diag = Diags.Report(diag::note_drv_use_standard); 2292 Diag << Std.getName() << Std.getDescription(); 2293 unsigned NumAliases = 0; 2294 #define LANGSTANDARD(id, name, lang, desc, features) 2295 #define LANGSTANDARD_ALIAS(id, alias) \ 2296 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2297 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2298 #include "clang/Frontend/LangStandards.def" 2299 Diag << NumAliases; 2300 #define LANGSTANDARD(id, name, lang, desc, features) 2301 #define LANGSTANDARD_ALIAS(id, alias) \ 2302 if (KindValue == LangStandard::lang_##id) Diag << alias; 2303 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2304 #include "clang/Frontend/LangStandards.def" 2305 } 2306 } 2307 } else { 2308 // Valid standard, check to make sure language and standard are 2309 // compatible. 2310 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2311 if (!IsInputCompatibleWithStandard(IK, Std)) { 2312 Diags.Report(diag::err_drv_argument_not_allowed_with) 2313 << A->getAsString(Args) << GetInputKindName(IK); 2314 } 2315 } 2316 } 2317 2318 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2319 Opts.DllExportInlines = false; 2320 2321 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2322 StringRef Name = A->getValue(); 2323 if (Name == "full" || Name == "branch") { 2324 Opts.CFProtectionBranch = 1; 2325 } 2326 } 2327 // -cl-std only applies for OpenCL language standards. 2328 // Override the -std option in this case. 2329 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2330 LangStandard::Kind OpenCLLangStd 2331 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2332 .Cases("cl", "CL", LangStandard::lang_opencl10) 2333 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2334 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2335 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2336 .Case("c++", LangStandard::lang_openclcpp) 2337 .Default(LangStandard::lang_unspecified); 2338 2339 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2340 Diags.Report(diag::err_drv_invalid_value) 2341 << A->getAsString(Args) << A->getValue(); 2342 } 2343 else 2344 LangStd = OpenCLLangStd; 2345 } 2346 2347 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2348 2349 llvm::Triple T(TargetOpts.Triple); 2350 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2351 2352 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2353 // This option should be deprecated for CL > 1.0 because 2354 // this option was added for compatibility with OpenCL 1.0. 2355 if (Args.getLastArg(OPT_cl_strict_aliasing) 2356 && Opts.OpenCLVersion > 100) { 2357 Diags.Report(diag::warn_option_invalid_ocl_version) 2358 << Opts.getOpenCLVersionTuple().getAsString() 2359 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2360 } 2361 2362 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2363 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2364 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2365 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2366 // name, as it doesn't seem a useful distinction. 2367 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2368 Opts.GNUKeywords); 2369 2370 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2371 2372 if (Args.hasArg(OPT_fno_operator_names)) 2373 Opts.CXXOperatorNames = 0; 2374 2375 if (Args.hasArg(OPT_fcuda_is_device)) 2376 Opts.CUDAIsDevice = 1; 2377 2378 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2379 Opts.CUDAAllowVariadicFunctions = 1; 2380 2381 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2382 Opts.CUDAHostDeviceConstexpr = 0; 2383 2384 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2385 Opts.CUDADeviceApproxTranscendentals = 1; 2386 2387 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2388 2389 if (Opts.ObjC) { 2390 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2391 StringRef value = arg->getValue(); 2392 if (Opts.ObjCRuntime.tryParse(value)) 2393 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2394 } 2395 2396 if (Args.hasArg(OPT_fobjc_gc_only)) 2397 Opts.setGC(LangOptions::GCOnly); 2398 else if (Args.hasArg(OPT_fobjc_gc)) 2399 Opts.setGC(LangOptions::HybridGC); 2400 else if (Args.hasArg(OPT_fobjc_arc)) { 2401 Opts.ObjCAutoRefCount = 1; 2402 if (!Opts.ObjCRuntime.allowsARC()) 2403 Diags.Report(diag::err_arc_unsupported_on_runtime); 2404 } 2405 2406 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2407 // whether the feature is actually enabled. This is predominantly 2408 // determined by -fobjc-runtime, but we allow it to be overridden 2409 // from the command line for testing purposes. 2410 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2411 Opts.ObjCWeakRuntime = 1; 2412 else 2413 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2414 2415 // ObjCWeak determines whether __weak is actually enabled. 2416 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2417 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2418 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2419 assert(!Opts.ObjCWeak); 2420 } else if (Opts.getGC() != LangOptions::NonGC) { 2421 Diags.Report(diag::err_objc_weak_with_gc); 2422 } else if (!Opts.ObjCWeakRuntime) { 2423 Diags.Report(diag::err_objc_weak_unsupported); 2424 } else { 2425 Opts.ObjCWeak = 1; 2426 } 2427 } else if (Opts.ObjCAutoRefCount) { 2428 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2429 } 2430 2431 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2432 Opts.ObjCInferRelatedResultType = 0; 2433 2434 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2435 Opts.ObjCSubscriptingLegacyRuntime = 2436 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2437 } 2438 2439 if (Args.hasArg(OPT_fgnu89_inline)) { 2440 if (Opts.CPlusPlus) 2441 Diags.Report(diag::err_drv_argument_not_allowed_with) 2442 << "-fgnu89-inline" << GetInputKindName(IK); 2443 else 2444 Opts.GNUInline = 1; 2445 } 2446 2447 if (Args.hasArg(OPT_fapple_kext)) { 2448 if (!Opts.CPlusPlus) 2449 Diags.Report(diag::warn_c_kext); 2450 else 2451 Opts.AppleKext = 1; 2452 } 2453 2454 if (Args.hasArg(OPT_print_ivar_layout)) 2455 Opts.ObjCGCBitmapPrint = 1; 2456 2457 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2458 Opts.NoConstantCFStrings = 1; 2459 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2460 Opts.CFRuntime = 2461 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2462 .Cases("unspecified", "standalone", "objc", 2463 LangOptions::CoreFoundationABI::ObjectiveC) 2464 .Cases("swift", "swift-5.0", 2465 LangOptions::CoreFoundationABI::Swift5_0) 2466 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2467 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2468 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2469 2470 if (Args.hasArg(OPT_fzvector)) 2471 Opts.ZVector = 1; 2472 2473 if (Args.hasArg(OPT_pthread)) 2474 Opts.POSIXThreads = 1; 2475 2476 // The value-visibility mode defaults to "default". 2477 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2478 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2479 } else { 2480 Opts.setValueVisibilityMode(DefaultVisibility); 2481 } 2482 2483 // The type-visibility mode defaults to the value-visibility mode. 2484 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2485 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2486 } else { 2487 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2488 } 2489 2490 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2491 Opts.InlineVisibilityHidden = 1; 2492 2493 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2494 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2495 2496 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2497 Opts.SetVisibilityForExternDecls = 1; 2498 2499 if (Args.hasArg(OPT_ftrapv)) { 2500 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2501 // Set the handler, if one is specified. 2502 Opts.OverflowHandler = 2503 Args.getLastArgValue(OPT_ftrapv_handler); 2504 } 2505 else if (Args.hasArg(OPT_fwrapv)) 2506 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2507 2508 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2509 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2510 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2511 Opts.MSCompatibilityVersion = 0; 2512 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2513 VersionTuple VT; 2514 if (VT.tryParse(A->getValue())) 2515 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2516 << A->getValue(); 2517 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2518 VT.getMinor().getValueOr(0) * 100000 + 2519 VT.getSubminor().getValueOr(0); 2520 } 2521 2522 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2523 // is specified, or -std is set to a conforming mode. 2524 // Trigraphs are disabled by default in c++1z onwards. 2525 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2526 Opts.Trigraphs = 2527 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2528 2529 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2530 OPT_fno_dollars_in_identifiers, 2531 Opts.DollarIdents); 2532 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2533 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 2534 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2535 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2536 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2537 Opts.ConstStrings); 2538 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2539 Opts.LaxVectorConversions = 0; 2540 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2541 Opts.ThreadsafeStatics = 0; 2542 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2543 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2544 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2545 2546 // -ffixed-point 2547 Opts.FixedPoint = 2548 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2549 !Opts.CPlusPlus; 2550 Opts.PaddingOnUnsignedFixedPoint = 2551 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2552 OPT_fno_padding_on_unsigned_fixed_point, 2553 /*Default=*/false) && 2554 Opts.FixedPoint; 2555 2556 // Handle exception personalities 2557 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions, 2558 options::OPT_fseh_exceptions, 2559 options::OPT_fdwarf_exceptions); 2560 if (A) { 2561 const Option &Opt = A->getOption(); 2562 llvm::Triple T(TargetOpts.Triple); 2563 if (T.isWindowsMSVCEnvironment()) 2564 Diags.Report(diag::err_fe_invalid_exception_model) 2565 << Opt.getName() << T.str(); 2566 2567 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2568 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2569 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2570 } 2571 2572 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2573 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2574 2575 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2576 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2577 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2578 && Opts.OpenCLVersion == 200); 2579 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2580 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 2581 2582 // Enable [[]] attributes in C++11 by default. 2583 Opts.DoubleSquareBracketAttributes = 2584 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2585 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11); 2586 2587 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2588 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 2589 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2590 Opts.ModulesDeclUse = 2591 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2592 Opts.ModulesLocalVisibility = 2593 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 2594 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2595 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2596 Opts.ModulesSearchAll = Opts.Modules && 2597 !Args.hasArg(OPT_fno_modules_search_all) && 2598 Args.hasArg(OPT_fmodules_search_all); 2599 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2600 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2601 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2602 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2603 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a); 2604 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2605 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2606 .Case("char", 1) 2607 .Case("short", 2) 2608 .Case("int", 4) 2609 .Default(0); 2610 if (Opts.WCharSize == 0) 2611 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2612 } 2613 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2614 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2615 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2616 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2617 if (!Opts.NoBuiltin) 2618 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2619 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2620 Opts.RelaxedTemplateTemplateArgs = 2621 Args.hasArg(OPT_frelaxed_template_template_args); 2622 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2623 Opts.AlignedAllocation = 2624 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2625 Opts.AlignedAllocation); 2626 Opts.AlignedAllocationUnavailable = 2627 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2628 Opts.NewAlignOverride = 2629 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2630 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2631 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2632 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2633 << A->getValue(); 2634 Opts.NewAlignOverride = 0; 2635 } 2636 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 2637 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2638 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2639 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2640 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2641 Opts.InstantiationDepth = 2642 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2643 Opts.ArrowDepth = 2644 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2645 Opts.ConstexprCallDepth = 2646 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2647 Opts.ConstexprStepLimit = 2648 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2649 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2650 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2651 Opts.NumLargeByValueCopy = 2652 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2653 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2654 Opts.ObjCConstantStringClass = 2655 Args.getLastArgValue(OPT_fconstant_string_class); 2656 Opts.ObjCDefaultSynthProperties = 2657 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2658 Opts.EncodeExtendedBlockSig = 2659 Args.hasArg(OPT_fencode_extended_block_signature); 2660 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2661 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2662 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2663 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2664 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2665 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2666 Opts.Static = Args.hasArg(OPT_static_define); 2667 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2668 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2669 || Args.hasArg(OPT_fdump_record_layouts); 2670 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2671 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2672 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2673 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2674 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2675 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2676 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2677 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2678 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2679 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2680 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2681 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2682 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ); 2683 Opts.CurrentModule = Opts.ModuleName; 2684 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2685 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2686 llvm::sort(Opts.ModuleFeatures); 2687 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2688 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2689 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2690 // is enabled. 2691 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2692 | Opts.NativeHalfArgsAndReturns; 2693 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2694 2695 // __declspec is enabled by default for the PS4 by the driver, and also 2696 // enabled for Microsoft Extensions or Borland Extensions, here. 2697 // 2698 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2699 // CUDA extension. However, it is required for supporting 2700 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2701 // been rewritten in terms of something more generic, remove the Opts.CUDA 2702 // term here. 2703 Opts.DeclSpecKeyword = 2704 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2705 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2706 2707 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2708 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2709 .Case("target", LangOptions::ASMM_Target) 2710 .Case("no", LangOptions::ASMM_Off) 2711 .Case("yes", LangOptions::ASMM_On) 2712 .Default(255)) { 2713 default: 2714 Diags.Report(diag::err_drv_invalid_value) 2715 << "-faddress-space-map-mangling=" << A->getValue(); 2716 break; 2717 case LangOptions::ASMM_Target: 2718 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2719 break; 2720 case LangOptions::ASMM_On: 2721 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2722 break; 2723 case LangOptions::ASMM_Off: 2724 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2725 break; 2726 } 2727 } 2728 2729 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2730 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2731 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2732 A->getValue()) 2733 .Case("single", 2734 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2735 .Case("multiple", 2736 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2737 .Case("virtual", 2738 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2739 .Default(LangOptions::PPTMK_BestCase); 2740 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2741 Diags.Report(diag::err_drv_invalid_value) 2742 << "-fms-memptr-rep=" << A->getValue(); 2743 2744 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2745 } 2746 2747 // Check for MS default calling conventions being specified. 2748 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2749 LangOptions::DefaultCallingConvention DefaultCC = 2750 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 2751 .Case("cdecl", LangOptions::DCC_CDecl) 2752 .Case("fastcall", LangOptions::DCC_FastCall) 2753 .Case("stdcall", LangOptions::DCC_StdCall) 2754 .Case("vectorcall", LangOptions::DCC_VectorCall) 2755 .Case("regcall", LangOptions::DCC_RegCall) 2756 .Default(LangOptions::DCC_None); 2757 if (DefaultCC == LangOptions::DCC_None) 2758 Diags.Report(diag::err_drv_invalid_value) 2759 << "-fdefault-calling-conv=" << A->getValue(); 2760 2761 llvm::Triple T(TargetOpts.Triple); 2762 llvm::Triple::ArchType Arch = T.getArch(); 2763 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2764 DefaultCC == LangOptions::DCC_StdCall) && 2765 Arch != llvm::Triple::x86; 2766 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 2767 DefaultCC == LangOptions::DCC_RegCall) && 2768 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2769 if (emitError) 2770 Diags.Report(diag::err_drv_argument_not_allowed_with) 2771 << A->getSpelling() << T.getTriple(); 2772 else 2773 Opts.setDefaultCallingConv(DefaultCC); 2774 } 2775 2776 // -mrtd option 2777 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2778 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2779 Diags.Report(diag::err_drv_argument_not_allowed_with) 2780 << A->getSpelling() << "-fdefault-calling-conv"; 2781 else { 2782 llvm::Triple T(TargetOpts.Triple); 2783 if (T.getArch() != llvm::Triple::x86) 2784 Diags.Report(diag::err_drv_argument_not_allowed_with) 2785 << A->getSpelling() << T.getTriple(); 2786 else 2787 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2788 } 2789 } 2790 2791 // Check if -fopenmp is specified. 2792 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2793 // Check if -fopenmp-simd is specified. 2794 bool IsSimdSpecified = 2795 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 2796 /*Default=*/false); 2797 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 2798 Opts.OpenMPUseTLS = 2799 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2800 Opts.OpenMPIsDevice = 2801 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2802 bool IsTargetSpecified = 2803 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 2804 2805 if (Opts.OpenMP || Opts.OpenMPSimd) { 2806 if (int Version = getLastArgIntValue( 2807 Args, OPT_fopenmp_version_EQ, 2808 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 2809 Opts.OpenMP = Version; 2810 else if (IsSimdSpecified || IsTargetSpecified) 2811 Opts.OpenMP = 45; 2812 // Provide diagnostic when a given target is not expected to be an OpenMP 2813 // device or host. 2814 if (!Opts.OpenMPIsDevice) { 2815 switch (T.getArch()) { 2816 default: 2817 break; 2818 // Add unsupported host targets here: 2819 case llvm::Triple::nvptx: 2820 case llvm::Triple::nvptx64: 2821 Diags.Report(diag::err_drv_omp_host_target_not_supported) 2822 << TargetOpts.Triple; 2823 break; 2824 } 2825 } 2826 } 2827 2828 // Set the flag to prevent the implementation from emitting device exception 2829 // handling code for those requiring so. 2830 Opts.OpenMPHostCXXExceptions = Opts.Exceptions && Opts.CXXExceptions; 2831 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 2832 Opts.Exceptions = 0; 2833 Opts.CXXExceptions = 0; 2834 } 2835 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 2836 Opts.OpenMPCUDANumSMs = 2837 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 2838 Opts.OpenMPCUDANumSMs, Diags); 2839 Opts.OpenMPCUDABlocksPerSM = 2840 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 2841 Opts.OpenMPCUDABlocksPerSM, Diags); 2842 } 2843 2844 // Prevent auto-widening the representation of loop counters during an 2845 // OpenMP collapse clause. 2846 Opts.OpenMPOptimisticCollapse = 2847 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 2848 2849 // Get the OpenMP target triples if any. 2850 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2851 2852 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2853 llvm::Triple TT(A->getValue(i)); 2854 2855 if (TT.getArch() == llvm::Triple::UnknownArch || 2856 !(TT.getArch() == llvm::Triple::ppc || 2857 TT.getArch() == llvm::Triple::ppc64 || 2858 TT.getArch() == llvm::Triple::ppc64le || 2859 TT.getArch() == llvm::Triple::nvptx || 2860 TT.getArch() == llvm::Triple::nvptx64 || 2861 TT.getArch() == llvm::Triple::x86 || 2862 TT.getArch() == llvm::Triple::x86_64)) 2863 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 2864 else 2865 Opts.OMPTargetTriples.push_back(TT); 2866 } 2867 } 2868 2869 // Get OpenMP host file path if any and report if a non existent file is 2870 // found 2871 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2872 Opts.OMPHostIRFile = A->getValue(); 2873 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2874 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 2875 << Opts.OMPHostIRFile; 2876 } 2877 2878 // Set CUDA mode for OpenMP target NVPTX if specified in options 2879 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 2880 Args.hasArg(options::OPT_fopenmp_cuda_mode); 2881 2882 // Set CUDA mode for OpenMP target NVPTX if specified in options 2883 Opts.OpenMPCUDAForceFullRuntime = 2884 Opts.OpenMPIsDevice && T.isNVPTX() && 2885 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 2886 2887 // Record whether the __DEPRECATED define was requested. 2888 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2889 OPT_fno_deprecated_macro, 2890 Opts.Deprecated); 2891 2892 // FIXME: Eliminate this dependency. 2893 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2894 OptSize = getOptimizationLevelSize(Args); 2895 Opts.Optimize = Opt != 0; 2896 Opts.OptimizeSize = OptSize != 0; 2897 2898 // This is the __NO_INLINE__ define, which just depends on things like the 2899 // optimization level and -fno-inline, not actually whether the backend has 2900 // inlining enabled. 2901 Opts.NoInlineDefine = !Opts.Optimize; 2902 if (Arg *InlineArg = Args.getLastArg( 2903 options::OPT_finline_functions, options::OPT_finline_hint_functions, 2904 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 2905 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 2906 Opts.NoInlineDefine = true; 2907 2908 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2909 Args.hasArg(OPT_cl_fast_relaxed_math); 2910 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2911 Args.hasArg(OPT_cl_finite_math_only) || 2912 Args.hasArg(OPT_cl_fast_relaxed_math); 2913 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2914 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2915 Args.hasArg(OPT_cl_fast_relaxed_math); 2916 2917 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2918 StringRef Val = A->getValue(); 2919 if (Val == "fast") 2920 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast); 2921 else if (Val == "on") 2922 Opts.setDefaultFPContractMode(LangOptions::FPC_On); 2923 else if (Val == "off") 2924 Opts.setDefaultFPContractMode(LangOptions::FPC_Off); 2925 else 2926 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2927 } 2928 2929 Opts.RetainCommentsFromSystemHeaders = 2930 Args.hasArg(OPT_fretain_comments_from_system_headers); 2931 2932 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2933 switch (SSP) { 2934 default: 2935 Diags.Report(diag::err_drv_invalid_value) 2936 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2937 break; 2938 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2939 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2940 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2941 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2942 } 2943 2944 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 2945 StringRef Val = A->getValue(); 2946 if (Val == "uninitialized") 2947 Opts.setTrivialAutoVarInit( 2948 LangOptions::TrivialAutoVarInitKind::Uninitialized); 2949 else if (Val == "zero") 2950 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 2951 else if (Val == "pattern") 2952 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 2953 else 2954 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2955 } 2956 2957 // Parse -fsanitize= arguments. 2958 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2959 Diags, Opts.Sanitize); 2960 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2961 Opts.SanitizeAddressFieldPadding = 2962 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2963 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2964 2965 // -fxray-instrument 2966 Opts.XRayInstrument = 2967 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false); 2968 2969 // -fxray-always-emit-customevents 2970 Opts.XRayAlwaysEmitCustomEvents = 2971 Args.hasFlag(OPT_fxray_always_emit_customevents, 2972 OPT_fnoxray_always_emit_customevents, false); 2973 2974 // -fxray-always-emit-typedevents 2975 Opts.XRayAlwaysEmitTypedEvents = 2976 Args.hasFlag(OPT_fxray_always_emit_typedevents, 2977 OPT_fnoxray_always_emit_customevents, false); 2978 2979 // -fxray-{always,never}-instrument= filenames. 2980 Opts.XRayAlwaysInstrumentFiles = 2981 Args.getAllArgValues(OPT_fxray_always_instrument); 2982 Opts.XRayNeverInstrumentFiles = 2983 Args.getAllArgValues(OPT_fxray_never_instrument); 2984 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 2985 2986 // -fforce-emit-vtables 2987 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 2988 2989 // -fallow-editor-placeholders 2990 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 2991 2992 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 2993 2994 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 2995 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 2996 2997 StringRef Ver = A->getValue(); 2998 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 2999 unsigned Major, Minor = 0; 3000 3001 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3002 // y or y.0 (4 <= y <= current version). 3003 if (!VerParts.first.startswith("0") && 3004 !VerParts.first.getAsInteger(10, Major) && 3005 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3006 (Major == 3 ? VerParts.second.size() == 1 && 3007 !VerParts.second.getAsInteger(10, Minor) 3008 : VerParts.first.size() == Ver.size() || 3009 VerParts.second == "0")) { 3010 // Got a valid version number. 3011 if (Major == 3 && Minor <= 8) 3012 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3013 else if (Major <= 4) 3014 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3015 else if (Major <= 6) 3016 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3017 else if (Major <= 7) 3018 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3019 } else if (Ver != "latest") { 3020 Diags.Report(diag::err_drv_invalid_value) 3021 << A->getAsString(Args) << A->getValue(); 3022 } 3023 } 3024 3025 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3026 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3027 } 3028 3029 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3030 switch (Action) { 3031 case frontend::ASTDeclList: 3032 case frontend::ASTDump: 3033 case frontend::ASTPrint: 3034 case frontend::ASTView: 3035 case frontend::EmitAssembly: 3036 case frontend::EmitBC: 3037 case frontend::EmitHTML: 3038 case frontend::EmitLLVM: 3039 case frontend::EmitLLVMOnly: 3040 case frontend::EmitCodeGenOnly: 3041 case frontend::EmitObj: 3042 case frontend::FixIt: 3043 case frontend::GenerateModule: 3044 case frontend::GenerateModuleInterface: 3045 case frontend::GenerateHeaderModule: 3046 case frontend::GeneratePCH: 3047 case frontend::ParseSyntaxOnly: 3048 case frontend::ModuleFileInfo: 3049 case frontend::VerifyPCH: 3050 case frontend::PluginAction: 3051 case frontend::RewriteObjC: 3052 case frontend::RewriteTest: 3053 case frontend::RunAnalysis: 3054 case frontend::TemplightDump: 3055 case frontend::MigrateSource: 3056 return false; 3057 3058 case frontend::DumpCompilerOptions: 3059 case frontend::DumpRawTokens: 3060 case frontend::DumpTokens: 3061 case frontend::InitOnly: 3062 case frontend::PrintPreamble: 3063 case frontend::PrintPreprocessedInput: 3064 case frontend::RewriteMacros: 3065 case frontend::RunPreprocessorOnly: 3066 return true; 3067 } 3068 llvm_unreachable("invalid frontend action"); 3069 } 3070 3071 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3072 DiagnosticsEngine &Diags, 3073 frontend::ActionKind Action) { 3074 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 3075 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3076 Args.hasArg(OPT_pch_through_hdrstop_use); 3077 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3078 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ); 3079 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3080 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3081 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3082 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3083 3084 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3085 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3086 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3087 3088 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3089 StringRef Value(A->getValue()); 3090 size_t Comma = Value.find(','); 3091 unsigned Bytes = 0; 3092 unsigned EndOfLine = 0; 3093 3094 if (Comma == StringRef::npos || 3095 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3096 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3097 Diags.Report(diag::err_drv_preamble_format); 3098 else { 3099 Opts.PrecompiledPreambleBytes.first = Bytes; 3100 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3101 } 3102 } 3103 3104 // Add the __CET__ macro if a CFProtection option is set. 3105 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3106 StringRef Name = A->getValue(); 3107 if (Name == "branch") 3108 Opts.addMacroDef("__CET__=1"); 3109 else if (Name == "return") 3110 Opts.addMacroDef("__CET__=2"); 3111 else if (Name == "full") 3112 Opts.addMacroDef("__CET__=3"); 3113 } 3114 3115 // Add macros from the command line. 3116 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3117 if (A->getOption().matches(OPT_D)) 3118 Opts.addMacroDef(A->getValue()); 3119 else 3120 Opts.addMacroUndef(A->getValue()); 3121 } 3122 3123 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3124 3125 // Add the ordered list of -includes. 3126 for (const auto *A : Args.filtered(OPT_include)) 3127 Opts.Includes.emplace_back(A->getValue()); 3128 3129 for (const auto *A : Args.filtered(OPT_chain_include)) 3130 Opts.ChainedIncludes.emplace_back(A->getValue()); 3131 3132 for (const auto *A : Args.filtered(OPT_remap_file)) { 3133 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3134 3135 if (Split.second.empty()) { 3136 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3137 continue; 3138 } 3139 3140 Opts.addRemappedFile(Split.first, Split.second); 3141 } 3142 3143 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3144 StringRef Name = A->getValue(); 3145 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3146 .Case("libc++", ARCXX_libcxx) 3147 .Case("libstdc++", ARCXX_libstdcxx) 3148 .Case("none", ARCXX_nolib) 3149 .Default(~0U); 3150 if (Library == ~0U) 3151 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3152 else 3153 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3154 } 3155 3156 // Always avoid lexing editor placeholders when we're just running the 3157 // preprocessor as we never want to emit the 3158 // "editor placeholder in source file" error in PP only mode. 3159 if (isStrictlyPreprocessorAction(Action)) 3160 Opts.LexEditorPlaceholders = false; 3161 } 3162 3163 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3164 ArgList &Args, 3165 frontend::ActionKind Action) { 3166 if (isStrictlyPreprocessorAction(Action)) 3167 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3168 else 3169 Opts.ShowCPP = 0; 3170 3171 Opts.ShowComments = Args.hasArg(OPT_C); 3172 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3173 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3174 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3175 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3176 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3177 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3178 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3179 } 3180 3181 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3182 DiagnosticsEngine &Diags) { 3183 Opts.CodeModel = getCodeModel(Args, Diags); 3184 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 3185 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3186 StringRef Value = A->getValue(); 3187 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3188 .Case("default", llvm::EABI::Default) 3189 .Case("4", llvm::EABI::EABI4) 3190 .Case("5", llvm::EABI::EABI5) 3191 .Case("gnu", llvm::EABI::GNU) 3192 .Default(llvm::EABI::Unknown); 3193 if (EABIVersion == llvm::EABI::Unknown) 3194 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3195 << Value; 3196 else 3197 Opts.EABIVersion = EABIVersion; 3198 } 3199 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 3200 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 3201 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3202 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 3203 Opts.Triple = Args.getLastArgValue(OPT_triple); 3204 // Use the default target triple if unspecified. 3205 if (Opts.Triple.empty()) 3206 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3207 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3208 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3209 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3210 Opts.NVPTXUseShortPointers = Args.hasFlag( 3211 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3212 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3213 llvm::VersionTuple Version; 3214 if (Version.tryParse(A->getValue())) 3215 Diags.Report(diag::err_drv_invalid_value) 3216 << A->getAsString(Args) << A->getValue(); 3217 else 3218 Opts.SDKVersion = Version; 3219 } 3220 } 3221 3222 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3223 const char *const *ArgBegin, 3224 const char *const *ArgEnd, 3225 DiagnosticsEngine &Diags) { 3226 bool Success = true; 3227 3228 // Parse the arguments. 3229 std::unique_ptr<OptTable> Opts = createDriverOptTable(); 3230 const unsigned IncludedFlagsBitmask = options::CC1Option; 3231 unsigned MissingArgIndex, MissingArgCount; 3232 InputArgList Args = 3233 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 3234 MissingArgCount, IncludedFlagsBitmask); 3235 LangOptions &LangOpts = *Res.getLangOpts(); 3236 3237 // Check for missing argument error. 3238 if (MissingArgCount) { 3239 Diags.Report(diag::err_drv_missing_argument) 3240 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3241 Success = false; 3242 } 3243 3244 // Issue errors on unknown arguments. 3245 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3246 auto ArgString = A->getAsString(Args); 3247 std::string Nearest; 3248 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3249 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3250 else 3251 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3252 << ArgString << Nearest; 3253 Success = false; 3254 } 3255 3256 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3257 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3258 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3259 Success &= 3260 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3261 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 3262 ParseCommentArgs(LangOpts.CommentOpts, Args); 3263 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3264 // FIXME: We shouldn't have to pass the DashX option around here 3265 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3266 LangOpts.IsHeaderFile); 3267 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3268 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3269 Res.getTargetOpts(), Res.getFrontendOpts()); 3270 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3271 Res.getFileSystemOpts().WorkingDir); 3272 llvm::Triple T(Res.getTargetOpts().Triple); 3273 if (DashX.getFormat() == InputKind::Precompiled || 3274 DashX.getLanguage() == InputKind::LLVM_IR) { 3275 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3276 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3277 // what the input type is. 3278 if (Args.hasArg(OPT_fobjc_arc)) 3279 LangOpts.ObjCAutoRefCount = 1; 3280 // PIClevel and PIELevel are needed during code generation and this should be 3281 // set regardless of the input type. 3282 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3283 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3284 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3285 Diags, LangOpts.Sanitize); 3286 } else { 3287 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3288 // FIXME: Should we really be calling this for an InputKind::Asm input? 3289 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3290 Res.getPreprocessorOpts(), Diags); 3291 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3292 LangOpts.ObjCExceptions = 1; 3293 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3294 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3295 // preprocessed input as we don't expect it to be used with -std=libc++ 3296 // anyway. 3297 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3298 } 3299 } 3300 3301 LangOpts.FunctionAlignment = 3302 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3303 3304 if (LangOpts.CUDA) { 3305 // During CUDA device-side compilation, the aux triple is the 3306 // triple used for host compilation. 3307 if (LangOpts.CUDAIsDevice) 3308 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3309 } 3310 3311 // Set the triple of the host for OpenMP device compile. 3312 if (LangOpts.OpenMPIsDevice) 3313 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3314 3315 // FIXME: Override value name discarding when asan or msan is used because the 3316 // backend passes depend on the name of the alloca in order to print out 3317 // names. 3318 Res.getCodeGenOpts().DiscardValueNames &= 3319 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3320 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3321 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3322 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3323 3324 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3325 Res.getFrontendOpts().ProgramAction); 3326 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3327 Res.getFrontendOpts().ProgramAction); 3328 3329 // Turn on -Wspir-compat for SPIR target. 3330 auto Arch = T.getArch(); 3331 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 3332 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3333 } 3334 3335 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3336 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3337 !Res.getLangOpts()->Sanitize.empty()) { 3338 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3339 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3340 } 3341 return Success; 3342 } 3343 3344 std::string CompilerInvocation::getModuleHash() const { 3345 // Note: For QoI reasons, the things we use as a hash here should all be 3346 // dumped via the -module-info flag. 3347 using llvm::hash_code; 3348 using llvm::hash_value; 3349 using llvm::hash_combine; 3350 3351 // Start the signature with the compiler version. 3352 // FIXME: We'd rather use something more cryptographically sound than 3353 // CityHash, but this will do for now. 3354 hash_code code = hash_value(getClangFullRepositoryVersion()); 3355 3356 // Extend the signature with the language options 3357 #define LANGOPT(Name, Bits, Default, Description) \ 3358 code = hash_combine(code, LangOpts->Name); 3359 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3360 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3361 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3362 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3363 #include "clang/Basic/LangOptions.def" 3364 3365 for (StringRef Feature : LangOpts->ModuleFeatures) 3366 code = hash_combine(code, Feature); 3367 3368 // Extend the signature with the target options. 3369 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3370 TargetOpts->ABI); 3371 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3372 code = hash_combine(code, FeatureAsWritten); 3373 3374 // Extend the signature with preprocessor options. 3375 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3376 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3377 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3378 3379 for (const auto &I : getPreprocessorOpts().Macros) { 3380 // If we're supposed to ignore this macro for the purposes of modules, 3381 // don't put it into the hash. 3382 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3383 // Check whether we're ignoring this macro. 3384 StringRef MacroDef = I.first; 3385 if (hsOpts.ModulesIgnoreMacros.count( 3386 llvm::CachedHashString(MacroDef.split('=').first))) 3387 continue; 3388 } 3389 3390 code = hash_combine(code, I.first, I.second); 3391 } 3392 3393 // Extend the signature with the sysroot and other header search options. 3394 code = hash_combine(code, hsOpts.Sysroot, 3395 hsOpts.ModuleFormat, 3396 hsOpts.UseDebugInfo, 3397 hsOpts.UseBuiltinIncludes, 3398 hsOpts.UseStandardSystemIncludes, 3399 hsOpts.UseStandardCXXIncludes, 3400 hsOpts.UseLibcxx, 3401 hsOpts.ModulesValidateDiagnosticOptions); 3402 code = hash_combine(code, hsOpts.ResourceDir); 3403 3404 // Extend the signature with the user build path. 3405 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3406 3407 // Extend the signature with the module file extensions. 3408 const FrontendOptions &frontendOpts = getFrontendOpts(); 3409 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3410 code = ext->hashExtension(code); 3411 } 3412 3413 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3414 // affects the debug info in the PCM. 3415 if (getCodeGenOpts().DebugTypeExtRefs) 3416 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3417 code = hash_combine(code, KeyValue.first, KeyValue.second); 3418 3419 // Extend the signature with the enabled sanitizers, if at least one is 3420 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3421 SanitizerSet SanHash = LangOpts->Sanitize; 3422 SanHash.clear(getPPTransparentSanitizers()); 3423 if (!SanHash.empty()) 3424 code = hash_combine(code, SanHash.Mask); 3425 3426 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3427 } 3428 3429 template<typename IntTy> 3430 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 3431 IntTy Default, 3432 DiagnosticsEngine *Diags) { 3433 IntTy Res = Default; 3434 if (Arg *A = Args.getLastArg(Id)) { 3435 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 3436 if (Diags) 3437 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 3438 << A->getValue(); 3439 } 3440 } 3441 return Res; 3442 } 3443 3444 namespace clang { 3445 3446 // Declared in clang/Frontend/Utils.h. 3447 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 3448 DiagnosticsEngine *Diags) { 3449 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 3450 } 3451 3452 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 3453 uint64_t Default, 3454 DiagnosticsEngine *Diags) { 3455 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 3456 } 3457 3458 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3459 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3460 DiagnosticsEngine &Diags) { 3461 return createVFSFromCompilerInvocation(CI, Diags, 3462 llvm::vfs::getRealFileSystem()); 3463 } 3464 3465 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3466 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3467 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3468 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3469 return BaseFS; 3470 3471 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3472 // earlier vfs files are on the bottom 3473 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3474 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3475 Result->getBufferForFile(File); 3476 if (!Buffer) { 3477 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3478 continue; 3479 } 3480 3481 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3482 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3483 /*DiagContext*/ nullptr, Result); 3484 if (!FS) { 3485 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3486 continue; 3487 } 3488 3489 Result = FS; 3490 } 3491 return Result; 3492 } 3493 3494 } // namespace clang 3495