1 //===--- CompilerInvocation.cpp -------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "TestModuleFileExtension.h"
11 #include "clang/Basic/Builtins.h"
12 #include "clang/Basic/FileManager.h"
13 #include "clang/Basic/Version.h"
14 #include "clang/Config/config.h"
15 #include "clang/Driver/DriverDiagnostic.h"
16 #include "clang/Driver/Options.h"
17 #include "clang/Driver/Util.h"
18 #include "clang/Frontend/CompilerInvocation.h"
19 #include "clang/Frontend/FrontendDiagnostic.h"
20 #include "clang/Frontend/LangStandard.h"
21 #include "clang/Frontend/Utils.h"
22 #include "clang/Lex/HeaderSearchOptions.h"
23 #include "clang/Serialization/ASTReader.h"
24 #include "clang/Serialization/ModuleFileExtension.h"
25 #include "llvm/ADT/Hashing.h"
26 #include "llvm/ADT/STLExtras.h"
27 #include "llvm/ADT/SmallVector.h"
28 #include "llvm/ADT/StringExtras.h"
29 #include "llvm/ADT/StringSwitch.h"
30 #include "llvm/ADT/Triple.h"
31 #include "llvm/Linker/Linker.h"
32 #include "llvm/Option/Arg.h"
33 #include "llvm/Option/ArgList.h"
34 #include "llvm/Option/OptTable.h"
35 #include "llvm/Option/Option.h"
36 #include "llvm/ProfileData/InstrProfReader.h"
37 #include "llvm/Support/CodeGen.h"
38 #include "llvm/Support/ErrorHandling.h"
39 #include "llvm/Support/FileSystem.h"
40 #include "llvm/Support/Host.h"
41 #include "llvm/Support/Path.h"
42 #include "llvm/Support/Process.h"
43 #include "llvm/Target/TargetOptions.h"
47 #include <system_error>
48 using namespace clang;
50 //===----------------------------------------------------------------------===//
52 //===----------------------------------------------------------------------===//
54 CompilerInvocationBase::CompilerInvocationBase()
55 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
56 DiagnosticOpts(new DiagnosticOptions()),
57 HeaderSearchOpts(new HeaderSearchOptions()),
58 PreprocessorOpts(new PreprocessorOptions()) {}
60 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X)
61 : RefCountedBase<CompilerInvocation>(),
62 LangOpts(new LangOptions(*X.getLangOpts())),
63 TargetOpts(new TargetOptions(X.getTargetOpts())),
64 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
65 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
66 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {}
68 CompilerInvocationBase::~CompilerInvocationBase() {}
70 //===----------------------------------------------------------------------===//
71 // Deserialization (from args)
72 //===----------------------------------------------------------------------===//
74 using namespace clang::driver;
75 using namespace clang::driver::options;
76 using namespace llvm::opt;
80 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
81 DiagnosticsEngine &Diags) {
82 unsigned DefaultOpt = 0;
83 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable))
86 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
87 if (A->getOption().matches(options::OPT_O0))
90 if (A->getOption().matches(options::OPT_Ofast))
93 assert (A->getOption().matches(options::OPT_O));
95 StringRef S(A->getValue());
96 if (S == "s" || S == "z" || S.empty())
99 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags);
105 static unsigned getOptimizationLevelSize(ArgList &Args) {
106 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
107 if (A->getOption().matches(options::OPT_O)) {
108 switch (A->getValue()[0]) {
121 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
122 OptSpecifier GroupWithValue,
123 std::vector<std::string> &Diagnostics) {
124 for (Arg *A : Args.filtered(Group)) {
125 if (A->getOption().getKind() == Option::FlagClass) {
126 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
127 // its name (minus the "W" or "R" at the beginning) to the warning list.
128 Diagnostics.push_back(A->getOption().getName().drop_front(1));
129 } else if (A->getOption().matches(GroupWithValue)) {
130 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group.
131 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-"));
133 // Otherwise, add its value (for OPT_W_Joined and similar).
134 for (const char *Arg : A->getValues())
135 Diagnostics.emplace_back(Arg);
140 static void getAllNoBuiltinFuncValues(ArgList &Args,
141 std::vector<std::string> &Funcs) {
142 SmallVector<const char *, 8> Values;
143 for (const auto &Arg : Args) {
144 const Option &O = Arg->getOption();
145 if (O.matches(options::OPT_fno_builtin_)) {
146 const char *FuncName = Arg->getValue();
147 if (Builtin::Context::isBuiltinFunc(FuncName))
148 Values.push_back(FuncName);
151 Funcs.insert(Funcs.end(), Values.begin(), Values.end());
154 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
155 DiagnosticsEngine &Diags) {
156 using namespace options;
158 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
159 StringRef Name = A->getValue();
160 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
161 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
162 .Case(CMDFLAG, NAME##Model)
163 #include "clang/StaticAnalyzer/Core/Analyses.def"
165 if (Value == NumStores) {
166 Diags.Report(diag::err_drv_invalid_value)
167 << A->getAsString(Args) << Name;
170 Opts.AnalysisStoreOpt = Value;
174 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
175 StringRef Name = A->getValue();
176 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
177 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
178 .Case(CMDFLAG, NAME##Model)
179 #include "clang/StaticAnalyzer/Core/Analyses.def"
180 .Default(NumConstraints);
181 if (Value == NumConstraints) {
182 Diags.Report(diag::err_drv_invalid_value)
183 << A->getAsString(Args) << Name;
186 Opts.AnalysisConstraintsOpt = Value;
190 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
191 StringRef Name = A->getValue();
192 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
193 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
194 .Case(CMDFLAG, PD_##NAME)
195 #include "clang/StaticAnalyzer/Core/Analyses.def"
196 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
197 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
198 Diags.Report(diag::err_drv_invalid_value)
199 << A->getAsString(Args) << Name;
202 Opts.AnalysisDiagOpt = Value;
206 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
207 StringRef Name = A->getValue();
208 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
209 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
211 #include "clang/StaticAnalyzer/Core/Analyses.def"
212 .Default(NumPurgeModes);
213 if (Value == NumPurgeModes) {
214 Diags.Report(diag::err_drv_invalid_value)
215 << A->getAsString(Args) << Name;
218 Opts.AnalysisPurgeOpt = Value;
222 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
223 StringRef Name = A->getValue();
224 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
225 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
227 #include "clang/StaticAnalyzer/Core/Analyses.def"
228 .Default(NumInliningModes);
229 if (Value == NumInliningModes) {
230 Diags.Report(diag::err_drv_invalid_value)
231 << A->getAsString(Args) << Name;
234 Opts.InliningMode = Value;
238 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
239 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks);
241 Opts.visualizeExplodedGraphWithGraphViz =
242 Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
243 Opts.visualizeExplodedGraphWithUbiGraph =
244 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
245 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
246 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
247 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
248 Opts.AnalyzeNestedBlocks =
249 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
250 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume);
251 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
252 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
253 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
254 Opts.maxBlockVisitOnPath =
255 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags);
256 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
257 Opts.InlineMaxStackDepth =
258 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth,
259 Opts.InlineMaxStackDepth, Diags);
261 Opts.CheckersControlList.clear();
263 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) {
265 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
266 // We can have a list of comma separated checker names, e.g:
267 // '-analyzer-checker=cocoa,unix'
268 StringRef checkerList = A->getValue();
269 SmallVector<StringRef, 4> checkers;
270 checkerList.split(checkers, ",");
271 for (StringRef checker : checkers)
272 Opts.CheckersControlList.emplace_back(checker, enable);
275 // Go through the analyzer configuration options.
276 for (const Arg *A : Args.filtered(OPT_analyzer_config)) {
278 // We can have a list of comma separated config names, e.g:
279 // '-analyzer-config key1=val1,key2=val2'
280 StringRef configList = A->getValue();
281 SmallVector<StringRef, 4> configVals;
282 configList.split(configVals, ",");
283 for (unsigned i = 0, e = configVals.size(); i != e; ++i) {
285 std::tie(key, val) = configVals[i].split("=");
287 Diags.Report(SourceLocation(),
288 diag::err_analyzer_config_no_value) << configVals[i];
292 if (val.find('=') != StringRef::npos) {
293 Diags.Report(SourceLocation(),
294 diag::err_analyzer_config_multiple_values)
299 Opts.Config[key] = val;
306 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
307 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
308 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
312 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
313 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
314 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
317 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) {
318 if (Arg *A = Args.getLastArg(OPT_mcode_model)) {
319 StringRef Value = A->getValue();
320 if (Value == "small" || Value == "kernel" || Value == "medium" ||
323 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
328 /// \brief Create a new Regex instance out of the string value in \p RpassArg.
329 /// It returns a pointer to the newly generated Regex instance.
330 static std::shared_ptr<llvm::Regex>
331 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args,
333 StringRef Val = RpassArg->getValue();
334 std::string RegexError;
335 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val);
336 if (!Pattern->isValid(RegexError)) {
337 Diags.Report(diag::err_drv_optimization_remark_pattern)
338 << RegexError << RpassArg->getAsString(Args);
344 static bool parseDiagnosticLevelMask(StringRef FlagName,
345 const std::vector<std::string> &Levels,
346 DiagnosticsEngine *Diags,
347 DiagnosticLevelMask &M) {
349 for (const auto &Level : Levels) {
350 DiagnosticLevelMask const PM =
351 llvm::StringSwitch<DiagnosticLevelMask>(Level)
352 .Case("note", DiagnosticLevelMask::Note)
353 .Case("remark", DiagnosticLevelMask::Remark)
354 .Case("warning", DiagnosticLevelMask::Warning)
355 .Case("error", DiagnosticLevelMask::Error)
356 .Default(DiagnosticLevelMask::None);
357 if (PM == DiagnosticLevelMask::None) {
360 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level;
367 static void parseSanitizerKinds(StringRef FlagName,
368 const std::vector<std::string> &Sanitizers,
369 DiagnosticsEngine &Diags, SanitizerSet &S) {
370 for (const auto &Sanitizer : Sanitizers) {
371 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false);
373 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer;
379 // Set the profile kind for fprofile-instrument.
380 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args,
381 DiagnosticsEngine &Diags) {
382 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ);
385 StringRef S = A->getValue();
386 unsigned I = llvm::StringSwitch<unsigned>(S)
387 .Case("none", CodeGenOptions::ProfileNone)
388 .Case("clang", CodeGenOptions::ProfileClangInstr)
389 .Case("llvm", CodeGenOptions::ProfileIRInstr)
392 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args)
396 CodeGenOptions::ProfileInstrKind Instrumentor =
397 static_cast<CodeGenOptions::ProfileInstrKind>(I);
398 Opts.setProfileInstr(Instrumentor);
401 // Set the profile kind using fprofile-instrument-use-path.
402 static void setPGOUseInstrumentor(CodeGenOptions &Opts,
403 const std::string ProfileName) {
404 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName);
405 // In error, return silently and let Clang PGOUse report the error message.
406 if (ReaderOrErr.getError()) {
407 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
410 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader =
411 std::move(ReaderOrErr.get());
412 if (PGOReader->isIRLevelProfile())
413 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr);
415 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
418 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
419 DiagnosticsEngine &Diags,
420 const TargetOptions &TargetOpts) {
421 using namespace options;
423 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple);
425 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
426 // TODO: This could be done in Driver
427 unsigned MaxOptLevel = 3;
428 if (OptimizationLevel > MaxOptLevel) {
429 // If the optimization level is not supported, fall back on the default
431 Diags.Report(diag::warn_drv_optimization_value)
432 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
433 OptimizationLevel = MaxOptLevel;
435 Opts.OptimizationLevel = OptimizationLevel;
437 // We must always run at least the always inlining pass.
439 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
440 : CodeGenOptions::OnlyAlwaysInlining);
441 // -fno-inline-functions overrides OptimizationLevel > 1.
442 Opts.NoInline = Args.hasArg(OPT_fno_inline);
443 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ?
444 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining());
446 if (Arg *A = Args.getLastArg(OPT_fveclib)) {
447 StringRef Name = A->getValue();
448 if (Name == "Accelerate")
449 Opts.setVecLib(CodeGenOptions::Accelerate);
450 else if (Name == "none")
451 Opts.setVecLib(CodeGenOptions::NoLibrary);
453 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
456 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) {
458 llvm::StringSwitch<unsigned>(A->getValue())
459 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly)
460 .Case("limited", codegenoptions::LimitedDebugInfo)
461 .Case("standalone", codegenoptions::FullDebugInfo)
464 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
467 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val));
469 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) {
470 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
471 .Case("gdb", unsigned(llvm::DebuggerKind::GDB))
472 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB))
473 .Case("sce", unsigned(llvm::DebuggerKind::SCE))
476 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
479 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val));
481 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags);
482 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
483 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview);
484 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables);
485 Opts.WholeProgramVTablesBlacklistFiles =
486 Args.getAllArgValues(OPT_fwhole_program_vtables_blacklist_EQ);
487 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
488 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs);
489 Opts.DebugExplicitImport = Triple.isPS4CPU();
491 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ))
492 Opts.DebugPrefixMap.insert(StringRef(Arg).split('='));
495 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists))
496 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
498 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
499 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes);
500 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
501 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
502 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
503 OPT_fuse_register_sized_bitfield_access);
504 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
505 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
506 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
507 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
508 Opts.NoCommon = Args.hasArg(OPT_fno_common);
509 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
510 Opts.OptimizeSize = getOptimizationLevelSize(Args);
511 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
512 Args.hasArg(OPT_ffreestanding));
513 if (Opts.SimplifyLibCalls)
514 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
516 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
517 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize));
518 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
520 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
521 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
522 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
524 setPGOInstrumentor(Opts, Args, Diags);
525 Opts.InstrProfileOutput =
526 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ);
527 Opts.ProfileInstrumentUsePath =
528 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ);
529 if (!Opts.ProfileInstrumentUsePath.empty())
530 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath);
532 Opts.CoverageMapping =
533 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false);
534 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
535 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
536 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
537 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
538 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
539 Opts.CodeModel = getCodeModel(Args, Diags);
540 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
542 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg));
543 Opts.DisableFree = Args.hasArg(OPT_disable_free);
544 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names);
545 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
546 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
547 if (Arg *A = Args.getLastArg(OPT_meabi)) {
548 StringRef Value = A->getValue();
549 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value)
550 .Case("default", llvm::EABI::Default)
551 .Case("4", llvm::EABI::EABI4)
552 .Case("5", llvm::EABI::EABI5)
553 .Case("gnu", llvm::EABI::GNU)
554 .Default(llvm::EABI::Unknown);
555 if (EABIVersion == llvm::EABI::Unknown)
556 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
559 Opts.EABIVersion = Value;
561 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable);
562 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
563 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
564 Args.hasArg(OPT_cl_finite_math_only) ||
565 Args.hasArg(OPT_cl_fast_relaxed_math));
566 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
567 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
568 Args.hasArg(OPT_cl_finite_math_only) ||
569 Args.hasArg(OPT_cl_fast_relaxed_math));
570 Opts.NoSignedZeros = Args.hasArg(OPT_fno_signed_zeros);
571 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
572 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
573 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
574 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
575 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
576 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
577 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
578 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
579 Opts.IncrementalLinkerCompatible =
580 Args.hasArg(OPT_mincremental_linker_compatible);
581 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
582 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
583 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
584 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
585 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
586 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers);
587 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
588 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
589 Args.hasArg(OPT_cl_fast_relaxed_math);
590 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
591 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
592 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
593 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
594 Diags.Report(diag::err_drv_invalid_value)
595 << Args.getLastArg(OPT_mthread_model)->getAsString(Args)
597 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
598 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
600 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
601 OPT_fno_function_sections, false);
602 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
603 OPT_fno_data_sections, false);
604 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
605 OPT_fno_unique_section_names, true);
607 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
609 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables);
611 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ);
612 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ);
613 Opts.EmitSummaryIndex = A && A->containsValue("thin");
614 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) {
615 if (IK != IK_LLVM_IR)
616 Diags.Report(diag::err_drv_argument_only_allowed_with)
617 << A->getAsString(Args) << "-x ir";
618 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ);
621 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile);
623 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive);
624 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
625 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
627 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
628 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
630 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
631 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
632 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
633 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
634 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file);
635 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
636 Opts.CoverageNoFunctionNamesInData =
637 Args.hasArg(OPT_coverage_no_function_names_in_data);
638 Opts.CoverageExitBlockBeforeBody =
639 Args.hasArg(OPT_coverage_exit_block_before_body);
640 if (Args.hasArg(OPT_coverage_version_EQ)) {
641 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
642 if (CoverageVersion.size() != 4) {
643 Diags.Report(diag::err_drv_invalid_value)
644 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
647 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
652 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
653 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
654 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
655 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections);
656 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
657 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) {
658 unsigned LinkFlags = llvm::Linker::Flags::None;
659 if (A->getOption().matches(OPT_mlink_cuda_bitcode))
660 LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded |
661 llvm::Linker::Flags::InternalizeLinkedSymbols;
662 Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue()));
664 Opts.SanitizeCoverageType =
665 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags);
666 Opts.SanitizeCoverageIndirectCalls =
667 Args.hasArg(OPT_fsanitize_coverage_indirect_calls);
668 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb);
669 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp);
670 Opts.SanitizeCoverage8bitCounters =
671 Args.hasArg(OPT_fsanitize_coverage_8bit_counters);
672 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc);
673 Opts.SanitizeMemoryTrackOrigins =
674 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
675 Opts.SanitizeMemoryUseAfterDtor =
676 Args.hasArg(OPT_fsanitize_memory_use_after_dtor);
677 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso);
678 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats);
680 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
681 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
682 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
683 StringRef Val = A->getValue();
684 unsigned StackAlignment = Opts.StackAlignment;
685 Val.getAsInteger(10, StackAlignment);
686 Opts.StackAlignment = StackAlignment;
689 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) {
690 StringRef Val = A->getValue();
691 unsigned StackProbeSize = Opts.StackProbeSize;
692 Val.getAsInteger(0, StackProbeSize);
693 Opts.StackProbeSize = StackProbeSize;
696 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
697 StringRef Name = A->getValue();
698 unsigned Method = llvm::StringSwitch<unsigned>(Name)
699 .Case("legacy", CodeGenOptions::Legacy)
700 .Case("non-legacy", CodeGenOptions::NonLegacy)
701 .Case("mixed", CodeGenOptions::Mixed)
704 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
707 Opts.setObjCDispatchMethod(
708 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
713 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false);
715 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
716 StringRef Name = A->getValue();
717 unsigned Model = llvm::StringSwitch<unsigned>(Name)
718 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
719 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
720 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
721 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
724 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
727 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
731 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
732 StringRef Val = A->getValue();
734 Opts.setFPContractMode(CodeGenOptions::FPC_Fast);
735 else if (Val == "on")
736 Opts.setFPContractMode(CodeGenOptions::FPC_On);
737 else if (Val == "off")
738 Opts.setFPContractMode(CodeGenOptions::FPC_Off);
740 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
743 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
744 if (A->getOption().matches(OPT_fpcc_struct_return)) {
745 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
747 assert(A->getOption().matches(OPT_freg_struct_return));
748 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
752 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
753 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option);
754 bool NeedLocTracking = false;
756 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
757 Opts.OptimizationRemarkPattern =
758 GenerateOptimizationRemarkRegex(Diags, Args, A);
759 NeedLocTracking = true;
762 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
763 Opts.OptimizationRemarkMissedPattern =
764 GenerateOptimizationRemarkRegex(Diags, Args, A);
765 NeedLocTracking = true;
768 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
769 Opts.OptimizationRemarkAnalysisPattern =
770 GenerateOptimizationRemarkRegex(Diags, Args, A);
771 NeedLocTracking = true;
774 // If the user requested to use a sample profile for PGO, then the
775 // backend will need to track source location information so the profile
776 // can be incorporated into the IR.
777 if (!Opts.SampleProfileFile.empty())
778 NeedLocTracking = true;
780 // If the user requested a flag that requires source locations available in
781 // the backend, make sure that the backend tracks source location information.
782 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo)
783 Opts.setDebugInfo(codegenoptions::LocTrackingOnly);
785 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file);
787 // Parse -fsanitize-recover= arguments.
788 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
789 parseSanitizerKinds("-fsanitize-recover=",
790 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
791 Opts.SanitizeRecover);
792 parseSanitizerKinds("-fsanitize-trap=",
793 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags,
796 Opts.CudaGpuBinaryFileNames =
797 Args.getAllArgValues(OPT_fcuda_include_gpubinary);
802 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
804 using namespace options;
805 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
806 Opts.Targets = Args.getAllArgValues(OPT_MT);
807 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
808 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
809 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
810 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
811 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
812 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
813 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes);
814 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
815 Opts.ModuleDependencyOutputDir =
816 Args.getLastArgValue(OPT_module_dependency_dir);
817 if (Args.hasArg(OPT_MV))
818 Opts.OutputFormat = DependencyOutputFormat::NMake;
819 // Add sanitizer blacklists as extra dependencies.
820 // They won't be discovered by the regular preprocessor, so
821 // we let make / ninja to know about this implicit dependency.
822 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry);
823 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
824 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(),
828 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
829 DiagnosticsEngine *Diags) {
830 using namespace options;
833 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
835 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
836 Opts.DiagnosticSerializationFile = A->getValue();
837 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
838 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
839 Opts.Pedantic = Args.hasArg(OPT_pedantic);
840 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
841 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
842 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics);
843 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
846 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
847 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
848 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
850 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
852 // Default behavior is to not to show note include stacks.
853 Opts.ShowNoteIncludeStack = false;
854 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
855 OPT_fno_diagnostics_show_note_include_stack))
856 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
857 Opts.ShowNoteIncludeStack = true;
859 StringRef ShowOverloads =
860 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
861 if (ShowOverloads == "best")
862 Opts.setShowOverloads(Ovl_Best);
863 else if (ShowOverloads == "all")
864 Opts.setShowOverloads(Ovl_All);
868 Diags->Report(diag::err_drv_invalid_value)
869 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
873 StringRef ShowCategory =
874 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
875 if (ShowCategory == "none")
876 Opts.ShowCategories = 0;
877 else if (ShowCategory == "id")
878 Opts.ShowCategories = 1;
879 else if (ShowCategory == "name")
880 Opts.ShowCategories = 2;
884 Diags->Report(diag::err_drv_invalid_value)
885 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
890 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
891 if (Format == "clang")
892 Opts.setFormat(DiagnosticOptions::Clang);
893 else if (Format == "msvc")
894 Opts.setFormat(DiagnosticOptions::MSVC);
895 else if (Format == "msvc-fallback") {
896 Opts.setFormat(DiagnosticOptions::MSVC);
897 Opts.CLFallbackMode = true;
898 } else if (Format == "vi")
899 Opts.setFormat(DiagnosticOptions::Vi);
903 Diags->Report(diag::err_drv_invalid_value)
904 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
908 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
909 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
910 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
911 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
912 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
913 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=",
914 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ),
916 if (Args.hasArg(OPT_verify_ignore_unexpected))
917 DiagMask = DiagnosticLevelMask::All;
918 Opts.setVerifyIgnoreUnexpected(DiagMask);
919 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
920 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
921 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
922 Opts.MacroBacktraceLimit =
923 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
924 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
925 Opts.TemplateBacktraceLimit = getLastArgIntValue(
926 Args, OPT_ftemplate_backtrace_limit,
927 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
928 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
929 Args, OPT_fconstexpr_backtrace_limit,
930 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
931 Opts.SpellCheckingLimit = getLastArgIntValue(
932 Args, OPT_fspell_checking_limit,
933 DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
934 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
935 DiagnosticOptions::DefaultTabStop, Diags);
936 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
937 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
939 Diags->Report(diag::warn_ignoring_ftabstop_value)
940 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
942 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
943 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
944 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
949 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
950 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
953 /// Parse the argument to the -ftest-module-file-extension
954 /// command-line argument.
956 /// \returns true on error, false on success.
957 static bool parseTestModuleFileExtensionArg(StringRef Arg,
958 std::string &BlockName,
959 unsigned &MajorVersion,
960 unsigned &MinorVersion,
962 std::string &UserInfo) {
963 SmallVector<StringRef, 5> Args;
964 Arg.split(Args, ':', 5);
969 if (Args[1].getAsInteger(10, MajorVersion)) return true;
970 if (Args[2].getAsInteger(10, MinorVersion)) return true;
971 if (Args[3].getAsInteger(2, Hashed)) return true;
977 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
978 DiagnosticsEngine &Diags) {
979 using namespace options;
980 Opts.ProgramAction = frontend::ParseSyntaxOnly;
981 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
982 switch (A->getOption().getID()) {
984 llvm_unreachable("Invalid option in group!");
986 Opts.ProgramAction = frontend::ASTDeclList; break;
988 case OPT_ast_dump_lookups:
989 Opts.ProgramAction = frontend::ASTDump; break;
991 Opts.ProgramAction = frontend::ASTPrint; break;
993 Opts.ProgramAction = frontend::ASTView; break;
994 case OPT_dump_raw_tokens:
995 Opts.ProgramAction = frontend::DumpRawTokens; break;
996 case OPT_dump_tokens:
997 Opts.ProgramAction = frontend::DumpTokens; break;
999 Opts.ProgramAction = frontend::EmitAssembly; break;
1000 case OPT_emit_llvm_bc:
1001 Opts.ProgramAction = frontend::EmitBC; break;
1003 Opts.ProgramAction = frontend::EmitHTML; break;
1005 Opts.ProgramAction = frontend::EmitLLVM; break;
1006 case OPT_emit_llvm_only:
1007 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
1008 case OPT_emit_codegen_only:
1009 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
1011 Opts.ProgramAction = frontend::EmitObj; break;
1013 Opts.FixItSuffix = A->getValue();
1016 Opts.ProgramAction = frontend::FixIt; break;
1017 case OPT_emit_module:
1018 Opts.ProgramAction = frontend::GenerateModule; break;
1020 Opts.ProgramAction = frontend::GeneratePCH; break;
1022 Opts.ProgramAction = frontend::GeneratePTH; break;
1024 Opts.ProgramAction = frontend::InitOnly; break;
1025 case OPT_fsyntax_only:
1026 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
1027 case OPT_module_file_info:
1028 Opts.ProgramAction = frontend::ModuleFileInfo; break;
1029 case OPT_verify_pch:
1030 Opts.ProgramAction = frontend::VerifyPCH; break;
1031 case OPT_print_decl_contexts:
1032 Opts.ProgramAction = frontend::PrintDeclContext; break;
1033 case OPT_print_preamble:
1034 Opts.ProgramAction = frontend::PrintPreamble; break;
1036 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
1037 case OPT_rewrite_macros:
1038 Opts.ProgramAction = frontend::RewriteMacros; break;
1039 case OPT_rewrite_objc:
1040 Opts.ProgramAction = frontend::RewriteObjC; break;
1041 case OPT_rewrite_test:
1042 Opts.ProgramAction = frontend::RewriteTest; break;
1044 Opts.ProgramAction = frontend::RunAnalysis; break;
1046 Opts.ProgramAction = frontend::MigrateSource; break;
1048 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
1052 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
1053 Opts.Plugins.emplace_back(A->getValue(0));
1054 Opts.ProgramAction = frontend::PluginAction;
1055 Opts.ActionName = A->getValue();
1057 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
1058 for (const Arg *AA : Args.filtered(OPT_plugin_arg))
1059 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1));
1061 for (const std::string &Arg :
1062 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) {
1063 std::string BlockName;
1064 unsigned MajorVersion;
1065 unsigned MinorVersion;
1067 std::string UserInfo;
1068 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
1069 MinorVersion, Hashed, UserInfo)) {
1070 Diags.Report(diag::err_test_module_file_extension_format) << Arg;
1075 // Add the testing module file extension.
1076 Opts.ModuleFileExtensions.push_back(
1077 new TestModuleFileExtension(BlockName, MajorVersion, MinorVersion,
1081 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
1082 Opts.CodeCompletionAt =
1083 ParsedSourceLocation::FromString(A->getValue());
1084 if (Opts.CodeCompletionAt.FileName.empty())
1085 Diags.Report(diag::err_drv_invalid_value)
1086 << A->getAsString(Args) << A->getValue();
1088 Opts.DisableFree = Args.hasArg(OPT_disable_free);
1090 Opts.OutputFile = Args.getLastArgValue(OPT_o);
1091 Opts.Plugins = Args.getAllArgValues(OPT_load);
1092 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1093 Opts.ShowHelp = Args.hasArg(OPT_help);
1094 Opts.ShowStats = Args.hasArg(OPT_print_stats);
1095 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1096 Opts.ShowVersion = Args.hasArg(OPT_version);
1097 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1098 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1099 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
1100 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
1101 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
1102 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
1103 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump);
1104 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
1105 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
1106 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
1107 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
1108 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file);
1109 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
1110 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ);
1111 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files);
1113 Opts.CodeCompleteOpts.IncludeMacros
1114 = Args.hasArg(OPT_code_completion_macros);
1115 Opts.CodeCompleteOpts.IncludeCodePatterns
1116 = Args.hasArg(OPT_code_completion_patterns);
1117 Opts.CodeCompleteOpts.IncludeGlobals
1118 = !Args.hasArg(OPT_no_code_completion_globals);
1119 Opts.CodeCompleteOpts.IncludeBriefComments
1120 = Args.hasArg(OPT_code_completion_brief_comments);
1122 Opts.OverrideRecordLayoutsFile
1123 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
1125 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple));
1126 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ);
1128 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
1130 OPT_arcmt_migrate)) {
1131 switch (A->getOption().getID()) {
1133 llvm_unreachable("missed a case");
1134 case OPT_arcmt_check:
1135 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
1137 case OPT_arcmt_modify:
1138 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
1140 case OPT_arcmt_migrate:
1141 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
1145 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
1146 Opts.ARCMTMigrateReportOut
1147 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
1148 Opts.ARCMTMigrateEmitARCErrors
1149 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
1151 if (Args.hasArg(OPT_objcmt_migrate_literals))
1152 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
1153 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
1154 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
1155 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
1156 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
1157 if (Args.hasArg(OPT_objcmt_migrate_property))
1158 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
1159 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
1160 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
1161 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
1162 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
1163 if (Args.hasArg(OPT_objcmt_migrate_annotation))
1164 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
1165 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
1166 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
1167 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
1168 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
1169 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
1170 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
1171 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
1172 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
1173 if (Args.hasArg(OPT_objcmt_atomic_property))
1174 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
1175 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
1176 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
1177 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
1178 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
1179 if (Args.hasArg(OPT_objcmt_migrate_all))
1180 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
1182 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
1184 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
1185 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
1186 Diags.Report(diag::err_drv_argument_not_allowed_with)
1187 << "ARC migration" << "ObjC migration";
1190 InputKind DashX = IK_None;
1191 if (const Arg *A = Args.getLastArg(OPT_x)) {
1192 DashX = llvm::StringSwitch<InputKind>(A->getValue())
1194 .Case("cl", IK_OpenCL)
1195 .Case("cuda", IK_CUDA)
1196 .Case("c++", IK_CXX)
1197 .Case("objective-c", IK_ObjC)
1198 .Case("objective-c++", IK_ObjCXX)
1199 .Case("cpp-output", IK_PreprocessedC)
1200 .Case("assembler-with-cpp", IK_Asm)
1201 .Case("c++-cpp-output", IK_PreprocessedCXX)
1202 .Case("cuda-cpp-output", IK_PreprocessedCuda)
1203 .Case("objective-c-cpp-output", IK_PreprocessedObjC)
1204 .Case("objc-cpp-output", IK_PreprocessedObjC)
1205 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
1206 .Case("objc++-cpp-output", IK_PreprocessedObjCXX)
1207 .Case("c-header", IK_C)
1208 .Case("cl-header", IK_OpenCL)
1209 .Case("objective-c-header", IK_ObjC)
1210 .Case("c++-header", IK_CXX)
1211 .Case("objective-c++-header", IK_ObjCXX)
1212 .Cases("ast", "pcm", IK_AST)
1213 .Case("ir", IK_LLVM_IR)
1215 if (DashX == IK_None)
1216 Diags.Report(diag::err_drv_invalid_value)
1217 << A->getAsString(Args) << A->getValue();
1220 // '-' is the default input if none is given.
1221 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1222 Opts.Inputs.clear();
1224 Inputs.push_back("-");
1225 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1226 InputKind IK = DashX;
1227 if (IK == IK_None) {
1228 IK = FrontendOptions::getInputKindForExtension(
1229 StringRef(Inputs[i]).rsplit('.').second);
1230 // FIXME: Remove this hack.
1234 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK);
1240 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1242 std::string ClangExecutable =
1243 llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
1244 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable);
1246 // Compute the path to the resource directory.
1247 StringRef ClangResourceDir(CLANG_RESOURCE_DIR);
1248 SmallString<128> P(Dir);
1249 if (ClangResourceDir != "")
1250 llvm::sys::path::append(P, ClangResourceDir);
1252 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX,
1253 "clang", CLANG_VERSION_STRING);
1258 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
1259 using namespace options;
1260 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1261 Opts.Verbose = Args.hasArg(OPT_v);
1262 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1263 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
1264 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1265 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
1266 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
1267 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1268 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path);
1269 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
1270 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
1271 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps);
1272 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd);
1273 Opts.ModuleCachePruneInterval =
1274 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
1275 Opts.ModuleCachePruneAfter =
1276 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
1277 Opts.ModulesValidateOncePerBuildSession =
1278 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
1279 Opts.BuildSessionTimestamp =
1280 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
1281 Opts.ModulesValidateSystemHeaders =
1282 Args.hasArg(OPT_fmodules_validate_system_headers);
1283 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ))
1284 Opts.ModuleFormat = A->getValue();
1286 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) {
1287 StringRef MacroDef = A->getValue();
1288 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first);
1291 // Add -I..., -F..., and -index-header-map options in order.
1292 bool IsIndexHeaderMap = false;
1293 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) {
1294 if (A->getOption().matches(OPT_index_header_map)) {
1295 // -index-header-map applies to the next -I or -F.
1296 IsIndexHeaderMap = true;
1300 frontend::IncludeDirGroup Group =
1301 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled;
1303 Opts.AddPath(A->getValue(), Group,
1304 /*IsFramework=*/A->getOption().matches(OPT_F), true);
1305 IsIndexHeaderMap = false;
1308 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
1309 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
1311 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) {
1312 if (A->getOption().matches(OPT_iprefix))
1313 Prefix = A->getValue();
1314 else if (A->getOption().matches(OPT_iwithprefix))
1315 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true);
1317 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true);
1320 for (const Arg *A : Args.filtered(OPT_idirafter))
1321 Opts.AddPath(A->getValue(), frontend::After, false, true);
1322 for (const Arg *A : Args.filtered(OPT_iquote))
1323 Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
1324 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
1325 Opts.AddPath(A->getValue(), frontend::System, false,
1326 !A->getOption().matches(OPT_iwithsysroot));
1327 for (const Arg *A : Args.filtered(OPT_iframework))
1328 Opts.AddPath(A->getValue(), frontend::System, true, true);
1330 // Add the paths for the various language specific isystem flags.
1331 for (const Arg *A : Args.filtered(OPT_c_isystem))
1332 Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
1333 for (const Arg *A : Args.filtered(OPT_cxx_isystem))
1334 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
1335 for (const Arg *A : Args.filtered(OPT_objc_isystem))
1336 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
1337 for (const Arg *A : Args.filtered(OPT_objcxx_isystem))
1338 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
1340 // Add the internal paths from a driver that detects standard include paths.
1342 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) {
1343 frontend::IncludeDirGroup Group = frontend::System;
1344 if (A->getOption().matches(OPT_internal_externc_isystem))
1345 Group = frontend::ExternCSystem;
1346 Opts.AddPath(A->getValue(), Group, false, true);
1349 // Add the path prefixes which are implicitly treated as being system headers.
1351 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix))
1352 Opts.AddSystemHeaderPrefix(
1353 A->getValue(), A->getOption().matches(OPT_system_header_prefix));
1355 for (const Arg *A : Args.filtered(OPT_ivfsoverlay))
1356 Opts.AddVFSOverlayFile(A->getValue());
1359 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
1360 const llvm::Triple &T,
1361 LangStandard::Kind LangStd) {
1362 // Set some properties which depend solely on the input kind; it would be nice
1363 // to move these to the language standard, and have the driver resolve the
1364 // input kind + language standard.
1366 Opts.AsmPreprocessor = 1;
1367 } else if (IK == IK_ObjC ||
1369 IK == IK_PreprocessedObjC ||
1370 IK == IK_PreprocessedObjCXX) {
1371 Opts.ObjC1 = Opts.ObjC2 = 1;
1374 if (LangStd == LangStandard::lang_unspecified) {
1375 // Based on the base language, pick one.
1380 llvm_unreachable("Invalid input kind!");
1382 LangStd = LangStandard::lang_opencl;
1385 case IK_PreprocessedCuda:
1386 LangStd = LangStandard::lang_cuda;
1390 case IK_PreprocessedC:
1392 case IK_PreprocessedObjC:
1393 // The PS4 uses C99 as the default C standard.
1395 LangStd = LangStandard::lang_gnu99;
1397 LangStd = LangStandard::lang_gnu11;
1400 case IK_PreprocessedCXX:
1402 case IK_PreprocessedObjCXX:
1403 LangStd = LangStandard::lang_gnucxx98;
1408 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1409 Opts.LineComment = Std.hasLineComments();
1410 Opts.C99 = Std.isC99();
1411 Opts.C11 = Std.isC11();
1412 Opts.CPlusPlus = Std.isCPlusPlus();
1413 Opts.CPlusPlus11 = Std.isCPlusPlus11();
1414 Opts.CPlusPlus14 = Std.isCPlusPlus14();
1415 Opts.CPlusPlus1z = Std.isCPlusPlus1z();
1416 Opts.Digraphs = Std.hasDigraphs();
1417 Opts.GNUMode = Std.isGNUMode();
1418 Opts.GNUInline = Std.isC89();
1419 Opts.HexFloats = Std.hasHexFloats();
1420 Opts.ImplicitInt = Std.hasImplicitInt();
1422 // Set OpenCL Version.
1423 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL;
1424 if (LangStd == LangStandard::lang_opencl)
1425 Opts.OpenCLVersion = 100;
1426 else if (LangStd == LangStandard::lang_opencl11)
1427 Opts.OpenCLVersion = 110;
1428 else if (LangStd == LangStandard::lang_opencl12)
1429 Opts.OpenCLVersion = 120;
1430 else if (LangStd == LangStandard::lang_opencl20)
1431 Opts.OpenCLVersion = 200;
1433 // OpenCL has some additional defaults.
1437 Opts.CXXOperatorNames = 1;
1438 Opts.LaxVectorConversions = 0;
1439 Opts.DefaultFPContract = 1;
1440 Opts.NativeHalfType = 1;
1441 Opts.NativeHalfArgsAndReturns = 1;
1444 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda ||
1445 LangStd == LangStandard::lang_cuda;
1447 // OpenCL and C++ both have bool, true, false keywords.
1448 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1450 // OpenCL has half keyword
1451 Opts.Half = Opts.OpenCL;
1453 // C++ has wchar_t keyword.
1454 Opts.WChar = Opts.CPlusPlus;
1456 Opts.GNUKeywords = Opts.GNUMode;
1457 Opts.CXXOperatorNames = Opts.CPlusPlus;
1459 Opts.DollarIdents = !Opts.AsmPreprocessor;
1462 /// Attempt to parse a visibility value out of the given argument.
1463 static Visibility parseVisibility(Arg *arg, ArgList &args,
1464 DiagnosticsEngine &diags) {
1465 StringRef value = arg->getValue();
1466 if (value == "default") {
1467 return DefaultVisibility;
1468 } else if (value == "hidden" || value == "internal") {
1469 return HiddenVisibility;
1470 } else if (value == "protected") {
1471 // FIXME: diagnose if target does not support protected visibility
1472 return ProtectedVisibility;
1475 diags.Report(diag::err_drv_invalid_value)
1476 << arg->getAsString(args) << value;
1477 return DefaultVisibility;
1480 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
1481 const TargetOptions &TargetOpts,
1482 DiagnosticsEngine &Diags) {
1483 // FIXME: Cleanup per-file based stuff.
1484 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1485 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
1486 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1487 #define LANGSTANDARD(id, name, desc, features) \
1488 .Case(name, LangStandard::lang_##id)
1489 #include "clang/Frontend/LangStandards.def"
1490 .Default(LangStandard::lang_unspecified);
1491 if (LangStd == LangStandard::lang_unspecified)
1492 Diags.Report(diag::err_drv_invalid_value)
1493 << A->getAsString(Args) << A->getValue();
1495 // Valid standard, check to make sure language and standard are
1497 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1501 case IK_PreprocessedC:
1502 case IK_PreprocessedObjC:
1503 if (!(Std.isC89() || Std.isC99()))
1504 Diags.Report(diag::err_drv_argument_not_allowed_with)
1505 << A->getAsString(Args) << "C/ObjC";
1509 case IK_PreprocessedCXX:
1510 case IK_PreprocessedObjCXX:
1511 if (!Std.isCPlusPlus())
1512 Diags.Report(diag::err_drv_argument_not_allowed_with)
1513 << A->getAsString(Args) << "C++/ObjC++";
1517 Diags.Report(diag::err_drv_argument_not_allowed_with)
1518 << A->getAsString(Args) << "OpenCL";
1521 case IK_PreprocessedCuda:
1522 if (!Std.isCPlusPlus())
1523 Diags.Report(diag::err_drv_argument_not_allowed_with)
1524 << A->getAsString(Args) << "CUDA";
1532 // -cl-std only applies for OpenCL language standards.
1533 // Override the -std option in this case.
1534 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
1535 LangStandard::Kind OpenCLLangStd
1536 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1537 .Case("CL", LangStandard::lang_opencl)
1538 .Case("CL1.1", LangStandard::lang_opencl11)
1539 .Case("CL1.2", LangStandard::lang_opencl12)
1540 .Case("CL2.0", LangStandard::lang_opencl20)
1541 .Default(LangStandard::lang_unspecified);
1543 if (OpenCLLangStd == LangStandard::lang_unspecified) {
1544 Diags.Report(diag::err_drv_invalid_value)
1545 << A->getAsString(Args) << A->getValue();
1548 LangStd = OpenCLLangStd;
1551 llvm::Triple T(TargetOpts.Triple);
1552 CompilerInvocation::setLangDefaults(Opts, IK, T, LangStd);
1554 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1555 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1556 // while a subset (the non-C++ GNU keywords) is provided by GCC's
1557 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1558 // name, as it doesn't seem a useful distinction.
1559 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
1562 if (Args.hasArg(OPT_fno_operator_names))
1563 Opts.CXXOperatorNames = 0;
1565 if (Args.hasArg(OPT_fcuda_is_device))
1566 Opts.CUDAIsDevice = 1;
1568 if (Args.hasArg(OPT_fcuda_allow_variadic_functions))
1569 Opts.CUDAAllowVariadicFunctions = 1;
1571 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr))
1572 Opts.CUDAHostDeviceConstexpr = 0;
1574 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero))
1575 Opts.CUDADeviceFlushDenormalsToZero = 1;
1578 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
1579 StringRef value = arg->getValue();
1580 if (Opts.ObjCRuntime.tryParse(value))
1581 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
1584 if (Args.hasArg(OPT_fobjc_gc_only))
1585 Opts.setGC(LangOptions::GCOnly);
1586 else if (Args.hasArg(OPT_fobjc_gc))
1587 Opts.setGC(LangOptions::HybridGC);
1588 else if (Args.hasArg(OPT_fobjc_arc)) {
1589 Opts.ObjCAutoRefCount = 1;
1590 if (!Opts.ObjCRuntime.allowsARC())
1591 Diags.Report(diag::err_arc_unsupported_on_runtime);
1594 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
1595 // whether the feature is actually enabled. This is predominantly
1596 // determined by -fobjc-runtime, but we allow it to be overridden
1597 // from the command line for testing purposes.
1598 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
1599 Opts.ObjCWeakRuntime = 1;
1601 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
1603 // ObjCWeak determines whether __weak is actually enabled.
1604 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
1605 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) {
1606 if (!weakArg->getOption().matches(OPT_fobjc_weak)) {
1607 assert(!Opts.ObjCWeak);
1608 } else if (Opts.getGC() != LangOptions::NonGC) {
1609 Diags.Report(diag::err_objc_weak_with_gc);
1610 } else if (!Opts.ObjCWeakRuntime) {
1611 Diags.Report(diag::err_objc_weak_unsupported);
1615 } else if (Opts.ObjCAutoRefCount) {
1616 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
1619 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
1620 Opts.ObjCInferRelatedResultType = 0;
1622 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
1623 Opts.ObjCSubscriptingLegacyRuntime =
1624 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
1627 if (Args.hasArg(OPT_fgnu89_inline)) {
1629 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline"
1635 if (Args.hasArg(OPT_fapple_kext)) {
1636 if (!Opts.CPlusPlus)
1637 Diags.Report(diag::warn_c_kext);
1642 if (Args.hasArg(OPT_print_ivar_layout))
1643 Opts.ObjCGCBitmapPrint = 1;
1644 if (Args.hasArg(OPT_fno_constant_cfstrings))
1645 Opts.NoConstantCFStrings = 1;
1647 if (Args.hasArg(OPT_faltivec))
1650 if (Args.hasArg(OPT_fzvector))
1653 if (Args.hasArg(OPT_pthread))
1654 Opts.POSIXThreads = 1;
1656 // The value-visibility mode defaults to "default".
1657 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
1658 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
1660 Opts.setValueVisibilityMode(DefaultVisibility);
1663 // The type-visibility mode defaults to the value-visibility mode.
1664 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
1665 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
1667 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
1670 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
1671 Opts.InlineVisibilityHidden = 1;
1673 if (Args.hasArg(OPT_ftrapv)) {
1674 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
1675 // Set the handler, if one is specified.
1676 Opts.OverflowHandler =
1677 Args.getLastArgValue(OPT_ftrapv_handler);
1679 else if (Args.hasArg(OPT_fwrapv))
1680 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
1682 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
1683 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
1684 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
1685 Opts.MSCompatibilityVersion = 0;
1686 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) {
1688 if (VT.tryParse(A->getValue()))
1689 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
1691 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
1692 VT.getMinor().getValueOr(0) * 100000 +
1693 VT.getSubminor().getValueOr(0);
1696 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1697 // is specified, or -std is set to a conforming mode.
1698 // Trigraphs are disabled by default in c++1z onwards.
1699 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z;
1701 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs);
1703 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
1704 OPT_fno_dollars_in_identifiers,
1706 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
1707 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags);
1708 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
1709 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
1710 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
1712 if (Args.hasArg(OPT_fno_lax_vector_conversions))
1713 Opts.LaxVectorConversions = 0;
1714 if (Args.hasArg(OPT_fno_threadsafe_statics))
1715 Opts.ThreadsafeStatics = 0;
1716 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
1717 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
1718 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
1719 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
1720 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind);
1721 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
1723 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti);
1724 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
1725 Opts.Blocks = Args.hasArg(OPT_fblocks);
1726 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
1727 Opts.Coroutines = Args.hasArg(OPT_fcoroutines);
1728 Opts.Modules = Args.hasArg(OPT_fmodules);
1729 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse);
1730 Opts.ModulesDeclUse =
1731 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
1732 Opts.ModulesLocalVisibility =
1733 Args.hasArg(OPT_fmodules_local_submodule_visibility);
1734 Opts.ModulesSearchAll = Opts.Modules &&
1735 !Args.hasArg(OPT_fno_modules_search_all) &&
1736 Args.hasArg(OPT_fmodules_search_all);
1737 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
1738 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules);
1739 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
1740 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
1741 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false);
1742 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
1743 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
1744 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
1745 if (!Opts.NoBuiltin)
1746 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
1747 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
1748 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
1749 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation);
1750 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts);
1751 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
1752 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
1753 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
1754 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
1755 Opts.InstantiationDepth =
1756 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags);
1758 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
1759 Opts.ConstexprCallDepth =
1760 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
1761 Opts.ConstexprStepLimit =
1762 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
1763 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
1764 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
1765 Opts.NumLargeByValueCopy =
1766 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
1767 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
1768 Opts.ObjCConstantStringClass =
1769 Args.getLastArgValue(OPT_fconstant_string_class);
1770 Opts.ObjCDefaultSynthProperties =
1771 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
1772 Opts.EncodeExtendedBlockSig =
1773 Args.hasArg(OPT_fencode_extended_block_signature);
1774 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
1775 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
1776 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags);
1777 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
1778 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags);
1779 Opts.Static = Args.hasArg(OPT_static_define);
1780 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
1781 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
1782 || Args.hasArg(OPT_fdump_record_layouts);
1783 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
1784 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
1785 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
1786 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
1787 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
1788 Opts.MRTD = Args.hasArg(OPT_mrtd);
1789 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
1790 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
1791 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
1792 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
1793 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
1794 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
1795 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
1796 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ);
1797 Opts.AppExt = Args.hasArg(OPT_fapplication_extension);
1798 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature);
1799 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end());
1800 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type);
1801 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns);
1802 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns
1804 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns)
1805 | Opts.NativeHalfArgsAndReturns;
1806 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm);
1808 // __declspec is enabled by default for the PS4 by the driver, and also
1809 // enabled for Microsoft Extensions or Borland Extensions, here.
1811 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a
1812 // CUDA extension, however it is required for supporting cuda_builtin_vars.h,
1813 // which uses __declspec(property). Once that has been rewritten in terms of
1814 // something more generic, remove the Opts.CUDA term here.
1815 Opts.DeclSpecKeyword =
1816 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec,
1817 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA));
1819 // For now, we only support local submodule visibility in C++ (because we
1820 // heavily depend on the ODR for merging redefinitions).
1821 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus)
1822 Diags.Report(diag::err_drv_argument_not_allowed_with)
1823 << "-fmodules-local-submodule-visibility" << "C";
1825 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
1826 switch (llvm::StringSwitch<unsigned>(A->getValue())
1827 .Case("target", LangOptions::ASMM_Target)
1828 .Case("no", LangOptions::ASMM_Off)
1829 .Case("yes", LangOptions::ASMM_On)
1832 Diags.Report(diag::err_drv_invalid_value)
1833 << "-faddress-space-map-mangling=" << A->getValue();
1835 case LangOptions::ASMM_Target:
1836 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
1838 case LangOptions::ASMM_On:
1839 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
1841 case LangOptions::ASMM_Off:
1842 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
1847 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
1848 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
1849 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
1852 LangOptions::PPTMK_FullGeneralitySingleInheritance)
1854 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
1856 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
1857 .Default(LangOptions::PPTMK_BestCase);
1858 if (InheritanceModel == LangOptions::PPTMK_BestCase)
1859 Diags.Report(diag::err_drv_invalid_value)
1860 << "-fms-memptr-rep=" << A->getValue();
1862 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
1865 // Check if -fopenmp is specified.
1866 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp);
1868 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls);
1869 Opts.OpenMPIsDevice =
1870 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device);
1872 // Provide diagnostic when a given target is not expected to be an OpenMP
1874 if (Opts.OpenMP && !Opts.OpenMPIsDevice) {
1875 switch (T.getArch()) {
1878 // Add unsupported host targets here:
1879 case llvm::Triple::nvptx:
1880 case llvm::Triple::nvptx64:
1881 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported)
1882 << TargetOpts.Triple;
1887 // Get the OpenMP target triples if any.
1888 if (Arg *A = Args.getLastArg(options::OPT_fomptargets_EQ)) {
1890 for (unsigned i = 0; i < A->getNumValues(); ++i) {
1891 llvm::Triple TT(A->getValue(i));
1893 if (TT.getArch() == llvm::Triple::UnknownArch)
1894 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i);
1896 Opts.OMPTargetTriples.push_back(TT);
1900 // Get OpenMP host file path if any and report if a non existent file is
1902 if (Arg *A = Args.getLastArg(options::OPT_fomp_host_ir_file_path)) {
1903 Opts.OMPHostIRFile = A->getValue();
1904 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile))
1905 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found)
1906 << Opts.OMPHostIRFile;
1909 // Record whether the __DEPRECATED define was requested.
1910 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
1911 OPT_fno_deprecated_macro,
1914 // FIXME: Eliminate this dependency.
1915 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
1916 OptSize = getOptimizationLevelSize(Args);
1917 Opts.Optimize = Opt != 0;
1918 Opts.OptimizeSize = OptSize != 0;
1920 // This is the __NO_INLINE__ define, which just depends on things like the
1921 // optimization level and -fno-inline, not actually whether the backend has
1922 // inlining enabled.
1923 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline);
1925 Opts.FastMath = Args.hasArg(OPT_ffast_math) ||
1926 Args.hasArg(OPT_cl_fast_relaxed_math);
1927 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) ||
1928 Args.hasArg(OPT_cl_finite_math_only) ||
1929 Args.hasArg(OPT_cl_fast_relaxed_math);
1930 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
1931 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
1932 Args.hasArg(OPT_cl_fast_relaxed_math);
1934 Opts.RetainCommentsFromSystemHeaders =
1935 Args.hasArg(OPT_fretain_comments_from_system_headers);
1937 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
1940 Diags.Report(diag::err_drv_invalid_value)
1941 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
1943 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
1944 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
1945 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
1946 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
1949 // Parse -fsanitize= arguments.
1950 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
1951 Diags, Opts.Sanitize);
1952 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here.
1953 Opts.SanitizeAddressFieldPadding =
1954 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags);
1955 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist);
1958 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
1959 FileManager &FileMgr,
1960 DiagnosticsEngine &Diags) {
1961 using namespace options;
1962 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
1963 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
1964 if (const Arg *A = Args.getLastArg(OPT_token_cache))
1965 Opts.TokenCache = A->getValue();
1967 Opts.TokenCache = Opts.ImplicitPTHInclude;
1968 Opts.UsePredefines = !Args.hasArg(OPT_undef);
1969 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
1970 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
1972 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
1973 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl))
1974 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
1976 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
1977 StringRef Value(A->getValue());
1978 size_t Comma = Value.find(',');
1980 unsigned EndOfLine = 0;
1982 if (Comma == StringRef::npos ||
1983 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
1984 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
1985 Diags.Report(diag::err_drv_preamble_format);
1987 Opts.PrecompiledPreambleBytes.first = Bytes;
1988 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
1992 // Add macros from the command line.
1993 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) {
1994 if (A->getOption().matches(OPT_D))
1995 Opts.addMacroDef(A->getValue());
1997 Opts.addMacroUndef(A->getValue());
2000 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
2002 // Add the ordered list of -includes.
2003 for (const Arg *A : Args.filtered(OPT_include))
2004 Opts.Includes.emplace_back(A->getValue());
2006 for (const Arg *A : Args.filtered(OPT_chain_include))
2007 Opts.ChainedIncludes.emplace_back(A->getValue());
2009 for (const Arg *A : Args.filtered(OPT_remap_file)) {
2010 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
2012 if (Split.second.empty()) {
2013 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
2017 Opts.addRemappedFile(Split.first, Split.second);
2020 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
2021 StringRef Name = A->getValue();
2022 unsigned Library = llvm::StringSwitch<unsigned>(Name)
2023 .Case("libc++", ARCXX_libcxx)
2024 .Case("libstdc++", ARCXX_libstdcxx)
2025 .Case("none", ARCXX_nolib)
2028 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
2030 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
2034 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
2036 frontend::ActionKind Action) {
2037 using namespace options;
2040 case frontend::ASTDeclList:
2041 case frontend::ASTDump:
2042 case frontend::ASTPrint:
2043 case frontend::ASTView:
2044 case frontend::EmitAssembly:
2045 case frontend::EmitBC:
2046 case frontend::EmitHTML:
2047 case frontend::EmitLLVM:
2048 case frontend::EmitLLVMOnly:
2049 case frontend::EmitCodeGenOnly:
2050 case frontend::EmitObj:
2051 case frontend::FixIt:
2052 case frontend::GenerateModule:
2053 case frontend::GeneratePCH:
2054 case frontend::GeneratePTH:
2055 case frontend::ParseSyntaxOnly:
2056 case frontend::ModuleFileInfo:
2057 case frontend::VerifyPCH:
2058 case frontend::PluginAction:
2059 case frontend::PrintDeclContext:
2060 case frontend::RewriteObjC:
2061 case frontend::RewriteTest:
2062 case frontend::RunAnalysis:
2063 case frontend::MigrateSource:
2067 case frontend::DumpRawTokens:
2068 case frontend::DumpTokens:
2069 case frontend::InitOnly:
2070 case frontend::PrintPreamble:
2071 case frontend::PrintPreprocessedInput:
2072 case frontend::RewriteMacros:
2073 case frontend::RunPreprocessorOnly:
2074 Opts.ShowCPP = !Args.hasArg(OPT_dM);
2078 Opts.ShowComments = Args.hasArg(OPT_C);
2079 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
2080 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
2081 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
2082 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
2083 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives);
2086 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
2087 using namespace options;
2088 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
2089 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
2090 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
2091 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
2092 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
2093 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
2094 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ);
2095 // Use the default target triple if unspecified.
2096 if (Opts.Triple.empty())
2097 Opts.Triple = llvm::sys::getDefaultTargetTriple();
2100 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
2101 const char *const *ArgBegin,
2102 const char *const *ArgEnd,
2103 DiagnosticsEngine &Diags) {
2104 bool Success = true;
2106 // Parse the arguments.
2107 std::unique_ptr<OptTable> Opts(createDriverOptTable());
2108 const unsigned IncludedFlagsBitmask = options::CC1Option;
2109 unsigned MissingArgIndex, MissingArgCount;
2111 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex,
2112 MissingArgCount, IncludedFlagsBitmask);
2114 // Check for missing argument error.
2115 if (MissingArgCount) {
2116 Diags.Report(diag::err_drv_missing_argument)
2117 << Args.getArgString(MissingArgIndex) << MissingArgCount;
2121 // Issue errors on unknown arguments.
2122 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) {
2123 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args);
2127 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
2128 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args);
2129 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args);
2130 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags);
2131 ParseCommentArgs(Res.getLangOpts()->CommentOpts, Args);
2132 ParseFileSystemArgs(Res.getFileSystemOpts(), Args);
2133 // FIXME: We shouldn't have to pass the DashX option around here
2134 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags);
2135 ParseTargetArgs(Res.getTargetOpts(), Args);
2136 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
2137 Res.getTargetOpts());
2138 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args);
2139 if (DashX == IK_AST || DashX == IK_LLVM_IR) {
2140 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
2141 // PassManager in BackendUtil.cpp. They need to be initializd no matter
2142 // what the input type is.
2143 if (Args.hasArg(OPT_fobjc_arc))
2144 Res.getLangOpts()->ObjCAutoRefCount = 1;
2145 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
2146 Diags, Res.getLangOpts()->Sanitize);
2148 // Other LangOpts are only initialzed when the input is not AST or LLVM IR.
2149 ParseLangArgs(*Res.getLangOpts(), Args, DashX, Res.getTargetOpts(), Diags);
2150 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
2151 Res.getLangOpts()->ObjCExceptions = 1;
2154 // FIXME: Override value name discarding when asan or msan is used because the
2155 // backend passes depend on the name of the alloca in order to print out
2157 Res.getCodeGenOpts().DiscardValueNames &=
2158 !Res.getLangOpts()->Sanitize.has(SanitizerKind::Address) &&
2159 !Res.getLangOpts()->Sanitize.has(SanitizerKind::Memory);
2161 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of
2162 // PCH file and find the original header name. Remove the need to do that in
2163 // ParsePreprocessorArgs and remove the FileManager
2164 // parameters from the function and the "FileManager.h" #include.
2165 FileManager FileMgr(Res.getFileSystemOpts());
2166 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags);
2167 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args,
2168 Res.getFrontendOpts().ProgramAction);
2174 class ModuleSignature {
2175 SmallVector<uint64_t, 16> Data;
2180 ModuleSignature() : CurBit(0), CurValue(0) { }
2182 void add(uint64_t Value, unsigned Bits);
2183 void add(StringRef Value);
2186 llvm::APInt getAsInteger() const;
2190 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) {
2191 CurValue |= Value << CurBit;
2192 if (CurBit + NumBits < 64) {
2197 // Add the current word.
2198 Data.push_back(CurValue);
2201 CurValue = Value >> (64-CurBit);
2204 CurBit = (CurBit+NumBits) & 63;
2207 void ModuleSignature::flush() {
2211 Data.push_back(CurValue);
2216 void ModuleSignature::add(StringRef Value) {
2217 for (auto &c : Value)
2221 llvm::APInt ModuleSignature::getAsInteger() const {
2222 return llvm::APInt(Data.size() * 64, Data);
2225 std::string CompilerInvocation::getModuleHash() const {
2226 // Note: For QoI reasons, the things we use as a hash here should all be
2227 // dumped via the -module-info flag.
2228 using llvm::hash_code;
2229 using llvm::hash_value;
2230 using llvm::hash_combine;
2232 // Start the signature with the compiler version.
2233 // FIXME: We'd rather use something more cryptographically sound than
2234 // CityHash, but this will do for now.
2235 hash_code code = hash_value(getClangFullRepositoryVersion());
2237 // Extend the signature with the language options
2238 #define LANGOPT(Name, Bits, Default, Description) \
2239 code = hash_combine(code, LangOpts->Name);
2240 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
2241 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
2242 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
2243 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
2244 #include "clang/Basic/LangOptions.def"
2246 for (StringRef Feature : LangOpts->ModuleFeatures)
2247 code = hash_combine(code, Feature);
2249 // Extend the signature with the target options.
2250 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
2252 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i)
2253 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]);
2255 // Extend the signature with preprocessor options.
2256 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
2257 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
2258 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
2260 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator
2261 I = getPreprocessorOpts().Macros.begin(),
2262 IEnd = getPreprocessorOpts().Macros.end();
2264 // If we're supposed to ignore this macro for the purposes of modules,
2265 // don't put it into the hash.
2266 if (!hsOpts.ModulesIgnoreMacros.empty()) {
2267 // Check whether we're ignoring this macro.
2268 StringRef MacroDef = I->first;
2269 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first))
2273 code = hash_combine(code, I->first, I->second);
2276 // Extend the signature with the sysroot and other header search options.
2277 code = hash_combine(code, hsOpts.Sysroot,
2278 hsOpts.ModuleFormat,
2279 hsOpts.UseDebugInfo,
2280 hsOpts.UseBuiltinIncludes,
2281 hsOpts.UseStandardSystemIncludes,
2282 hsOpts.UseStandardCXXIncludes,
2284 code = hash_combine(code, hsOpts.ResourceDir);
2286 // Extend the signature with the user build path.
2287 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
2289 // Extend the signature with the module file extensions.
2290 const FrontendOptions &frontendOpts = getFrontendOpts();
2291 for (auto ext : frontendOpts.ModuleFileExtensions) {
2292 code = ext->hashExtension(code);
2295 // Darwin-specific hack: if we have a sysroot, use the contents and
2296 // modification time of
2297 // $sysroot/System/Library/CoreServices/SystemVersion.plist
2298 // as part of the module hash.
2299 if (!hsOpts.Sysroot.empty()) {
2300 SmallString<128> systemVersionFile;
2301 systemVersionFile += hsOpts.Sysroot;
2302 llvm::sys::path::append(systemVersionFile, "System");
2303 llvm::sys::path::append(systemVersionFile, "Library");
2304 llvm::sys::path::append(systemVersionFile, "CoreServices");
2305 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist");
2307 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer =
2308 llvm::MemoryBuffer::getFile(systemVersionFile);
2310 code = hash_combine(code, buffer.get()->getBuffer());
2312 struct stat statBuf;
2313 if (stat(systemVersionFile.c_str(), &statBuf) == 0)
2314 code = hash_combine(code, statBuf.st_mtime);
2318 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
2323 template<typename IntTy>
2324 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
2326 DiagnosticsEngine *Diags) {
2327 IntTy Res = Default;
2328 if (Arg *A = Args.getLastArg(Id)) {
2329 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
2331 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)
2339 // Declared in clang/Frontend/Utils.h.
2340 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
2341 DiagnosticsEngine *Diags) {
2342 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags);
2345 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
2347 DiagnosticsEngine *Diags) {
2348 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags);
2351 void BuryPointer(const void *Ptr) {
2352 // This function may be called only a small fixed amount of times per each
2353 // invocation, otherwise we do actually have a leak which we want to report.
2354 // If this function is called more than kGraveYardMaxSize times, the pointers
2355 // will not be properly buried and a leak detector will report a leak, which
2356 // is what we want in such case.
2357 static const size_t kGraveYardMaxSize = 16;
2358 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize];
2359 static std::atomic<unsigned> GraveYardSize;
2360 unsigned Idx = GraveYardSize++;
2361 if (Idx >= kGraveYardMaxSize)
2363 GraveYard[Idx] = Ptr;
2366 IntrusiveRefCntPtr<vfs::FileSystem>
2367 createVFSFromCompilerInvocation(const CompilerInvocation &CI,
2368 DiagnosticsEngine &Diags) {
2369 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
2370 return vfs::getRealFileSystem();
2372 IntrusiveRefCntPtr<vfs::OverlayFileSystem>
2373 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem()));
2374 // earlier vfs files are on the bottom
2375 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
2376 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
2377 llvm::MemoryBuffer::getFile(File);
2379 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
2380 return IntrusiveRefCntPtr<vfs::FileSystem>();
2383 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML(
2384 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File);
2386 Diags.Report(diag::err_invalid_vfs_overlay) << File;
2387 return IntrusiveRefCntPtr<vfs::FileSystem>();
2389 Overlay->pushOverlay(FS);
2393 } // end namespace clang