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 "clang/Frontend/CompilerInvocation.h"
11 #include "TestModuleFileExtension.h"
12 #include "clang/Basic/Builtins.h"
13 #include "clang/Basic/FileManager.h"
14 #include "clang/Basic/Version.h"
15 #include "clang/Config/config.h"
16 #include "clang/Driver/DriverDiagnostic.h"
17 #include "clang/Driver/Options.h"
18 #include "clang/Driver/Util.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/Lex/PreprocessorOptions.h"
24 #include "clang/Serialization/ASTReader.h"
25 #include "clang/Serialization/ModuleFileExtension.h"
26 #include "llvm/ADT/Hashing.h"
27 #include "llvm/ADT/STLExtras.h"
28 #include "llvm/ADT/SmallVector.h"
29 #include "llvm/ADT/StringExtras.h"
30 #include "llvm/ADT/StringSwitch.h"
31 #include "llvm/ADT/Triple.h"
32 #include "llvm/Linker/Linker.h"
33 #include "llvm/Option/Arg.h"
34 #include "llvm/Option/ArgList.h"
35 #include "llvm/Option/OptTable.h"
36 #include "llvm/Option/Option.h"
37 #include "llvm/ProfileData/InstrProfReader.h"
38 #include "llvm/Support/CodeGen.h"
39 #include "llvm/Support/ErrorHandling.h"
40 #include "llvm/Support/FileSystem.h"
41 #include "llvm/Support/Host.h"
42 #include "llvm/Support/Path.h"
43 #include "llvm/Support/Process.h"
44 #include "llvm/Target/TargetOptions.h"
45 #include "llvm/Support/ScopedPrinter.h"
49 #include <system_error>
50 using namespace clang;
52 //===----------------------------------------------------------------------===//
54 //===----------------------------------------------------------------------===//
56 CompilerInvocationBase::CompilerInvocationBase()
57 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
58 DiagnosticOpts(new DiagnosticOptions()),
59 HeaderSearchOpts(new HeaderSearchOptions()),
60 PreprocessorOpts(new PreprocessorOptions()) {}
62 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X)
63 : RefCountedBase<CompilerInvocation>(),
64 LangOpts(new LangOptions(*X.getLangOpts())),
65 TargetOpts(new TargetOptions(X.getTargetOpts())),
66 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
67 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
68 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {}
70 CompilerInvocationBase::~CompilerInvocationBase() {}
72 //===----------------------------------------------------------------------===//
73 // Deserialization (from args)
74 //===----------------------------------------------------------------------===//
76 using namespace clang::driver;
77 using namespace clang::driver::options;
78 using namespace llvm::opt;
82 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
83 DiagnosticsEngine &Diags) {
84 unsigned DefaultOpt = 0;
85 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable))
88 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
89 if (A->getOption().matches(options::OPT_O0))
92 if (A->getOption().matches(options::OPT_Ofast))
95 assert (A->getOption().matches(options::OPT_O));
97 StringRef S(A->getValue());
98 if (S == "s" || S == "z" || S.empty())
101 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags);
107 static unsigned getOptimizationLevelSize(ArgList &Args) {
108 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
109 if (A->getOption().matches(options::OPT_O)) {
110 switch (A->getValue()[0]) {
123 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
124 OptSpecifier GroupWithValue,
125 std::vector<std::string> &Diagnostics) {
126 for (Arg *A : Args.filtered(Group)) {
127 if (A->getOption().getKind() == Option::FlagClass) {
128 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
129 // its name (minus the "W" or "R" at the beginning) to the warning list.
130 Diagnostics.push_back(A->getOption().getName().drop_front(1));
131 } else if (A->getOption().matches(GroupWithValue)) {
132 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group.
133 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-"));
135 // Otherwise, add its value (for OPT_W_Joined and similar).
136 for (const char *Arg : A->getValues())
137 Diagnostics.emplace_back(Arg);
142 static void getAllNoBuiltinFuncValues(ArgList &Args,
143 std::vector<std::string> &Funcs) {
144 SmallVector<const char *, 8> Values;
145 for (const auto &Arg : Args) {
146 const Option &O = Arg->getOption();
147 if (O.matches(options::OPT_fno_builtin_)) {
148 const char *FuncName = Arg->getValue();
149 if (Builtin::Context::isBuiltinFunc(FuncName))
150 Values.push_back(FuncName);
153 Funcs.insert(Funcs.end(), Values.begin(), Values.end());
156 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
157 DiagnosticsEngine &Diags) {
158 using namespace options;
160 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
161 StringRef Name = A->getValue();
162 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
163 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
164 .Case(CMDFLAG, NAME##Model)
165 #include "clang/StaticAnalyzer/Core/Analyses.def"
167 if (Value == NumStores) {
168 Diags.Report(diag::err_drv_invalid_value)
169 << A->getAsString(Args) << Name;
172 Opts.AnalysisStoreOpt = Value;
176 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
177 StringRef Name = A->getValue();
178 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
179 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
180 .Case(CMDFLAG, NAME##Model)
181 #include "clang/StaticAnalyzer/Core/Analyses.def"
182 .Default(NumConstraints);
183 if (Value == NumConstraints) {
184 Diags.Report(diag::err_drv_invalid_value)
185 << A->getAsString(Args) << Name;
188 Opts.AnalysisConstraintsOpt = Value;
192 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
193 StringRef Name = A->getValue();
194 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
195 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
196 .Case(CMDFLAG, PD_##NAME)
197 #include "clang/StaticAnalyzer/Core/Analyses.def"
198 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
199 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
200 Diags.Report(diag::err_drv_invalid_value)
201 << A->getAsString(Args) << Name;
204 Opts.AnalysisDiagOpt = Value;
208 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
209 StringRef Name = A->getValue();
210 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
211 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
213 #include "clang/StaticAnalyzer/Core/Analyses.def"
214 .Default(NumPurgeModes);
215 if (Value == NumPurgeModes) {
216 Diags.Report(diag::err_drv_invalid_value)
217 << A->getAsString(Args) << Name;
220 Opts.AnalysisPurgeOpt = Value;
224 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
225 StringRef Name = A->getValue();
226 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
227 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
229 #include "clang/StaticAnalyzer/Core/Analyses.def"
230 .Default(NumInliningModes);
231 if (Value == NumInliningModes) {
232 Diags.Report(diag::err_drv_invalid_value)
233 << A->getAsString(Args) << Name;
236 Opts.InliningMode = Value;
240 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
241 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers);
242 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks);
244 Opts.visualizeExplodedGraphWithGraphViz =
245 Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
246 Opts.visualizeExplodedGraphWithUbiGraph =
247 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
248 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
249 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
250 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
251 Opts.AnalyzeNestedBlocks =
252 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
253 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume);
254 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
255 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
256 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
257 Opts.maxBlockVisitOnPath =
258 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags);
259 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
260 Opts.InlineMaxStackDepth =
261 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth,
262 Opts.InlineMaxStackDepth, Diags);
264 Opts.CheckersControlList.clear();
266 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) {
268 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
269 // We can have a list of comma separated checker names, e.g:
270 // '-analyzer-checker=cocoa,unix'
271 StringRef checkerList = A->getValue();
272 SmallVector<StringRef, 4> checkers;
273 checkerList.split(checkers, ",");
274 for (StringRef checker : checkers)
275 Opts.CheckersControlList.emplace_back(checker, enable);
278 // Go through the analyzer configuration options.
279 for (const Arg *A : Args.filtered(OPT_analyzer_config)) {
281 // We can have a list of comma separated config names, e.g:
282 // '-analyzer-config key1=val1,key2=val2'
283 StringRef configList = A->getValue();
284 SmallVector<StringRef, 4> configVals;
285 configList.split(configVals, ",");
286 for (unsigned i = 0, e = configVals.size(); i != e; ++i) {
288 std::tie(key, val) = configVals[i].split("=");
290 Diags.Report(SourceLocation(),
291 diag::err_analyzer_config_no_value) << configVals[i];
295 if (val.find('=') != StringRef::npos) {
296 Diags.Report(SourceLocation(),
297 diag::err_analyzer_config_multiple_values)
302 Opts.Config[key] = val;
309 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
310 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
311 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
315 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
316 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
317 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
320 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) {
321 if (Arg *A = Args.getLastArg(OPT_mcode_model)) {
322 StringRef Value = A->getValue();
323 if (Value == "small" || Value == "kernel" || Value == "medium" ||
326 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
331 /// \brief Create a new Regex instance out of the string value in \p RpassArg.
332 /// It returns a pointer to the newly generated Regex instance.
333 static std::shared_ptr<llvm::Regex>
334 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args,
336 StringRef Val = RpassArg->getValue();
337 std::string RegexError;
338 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val);
339 if (!Pattern->isValid(RegexError)) {
340 Diags.Report(diag::err_drv_optimization_remark_pattern)
341 << RegexError << RpassArg->getAsString(Args);
347 static bool parseDiagnosticLevelMask(StringRef FlagName,
348 const std::vector<std::string> &Levels,
349 DiagnosticsEngine *Diags,
350 DiagnosticLevelMask &M) {
352 for (const auto &Level : Levels) {
353 DiagnosticLevelMask const PM =
354 llvm::StringSwitch<DiagnosticLevelMask>(Level)
355 .Case("note", DiagnosticLevelMask::Note)
356 .Case("remark", DiagnosticLevelMask::Remark)
357 .Case("warning", DiagnosticLevelMask::Warning)
358 .Case("error", DiagnosticLevelMask::Error)
359 .Default(DiagnosticLevelMask::None);
360 if (PM == DiagnosticLevelMask::None) {
363 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level;
370 static void parseSanitizerKinds(StringRef FlagName,
371 const std::vector<std::string> &Sanitizers,
372 DiagnosticsEngine &Diags, SanitizerSet &S) {
373 for (const auto &Sanitizer : Sanitizers) {
374 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false);
376 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer;
382 // Set the profile kind for fprofile-instrument.
383 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args,
384 DiagnosticsEngine &Diags) {
385 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ);
388 StringRef S = A->getValue();
389 unsigned I = llvm::StringSwitch<unsigned>(S)
390 .Case("none", CodeGenOptions::ProfileNone)
391 .Case("clang", CodeGenOptions::ProfileClangInstr)
392 .Case("llvm", CodeGenOptions::ProfileIRInstr)
395 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args)
399 CodeGenOptions::ProfileInstrKind Instrumentor =
400 static_cast<CodeGenOptions::ProfileInstrKind>(I);
401 Opts.setProfileInstr(Instrumentor);
404 // Set the profile kind using fprofile-instrument-use-path.
405 static void setPGOUseInstrumentor(CodeGenOptions &Opts,
406 const Twine &ProfileName) {
407 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName);
408 // In error, return silently and let Clang PGOUse report the error message.
409 if (auto E = ReaderOrErr.takeError()) {
410 llvm::consumeError(std::move(E));
411 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
414 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader =
415 std::move(ReaderOrErr.get());
416 if (PGOReader->isIRLevelProfile())
417 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr);
419 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
422 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
423 DiagnosticsEngine &Diags,
424 const TargetOptions &TargetOpts) {
425 using namespace options;
427 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple);
429 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
430 // TODO: This could be done in Driver
431 unsigned MaxOptLevel = 3;
432 if (OptimizationLevel > MaxOptLevel) {
433 // If the optimization level is not supported, fall back on the default
435 Diags.Report(diag::warn_drv_optimization_value)
436 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
437 OptimizationLevel = MaxOptLevel;
439 Opts.OptimizationLevel = OptimizationLevel;
441 // We must always run at least the always inlining pass.
443 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
444 : CodeGenOptions::OnlyAlwaysInlining);
445 // -fno-inline-functions overrides OptimizationLevel > 1.
446 Opts.NoInline = Args.hasArg(OPT_fno_inline);
447 if (Arg* InlineArg = Args.getLastArg(options::OPT_finline_functions,
448 options::OPT_finline_hint_functions,
449 options::OPT_fno_inline_functions)) {
450 const Option& InlineOpt = InlineArg->getOption();
451 if (InlineOpt.matches(options::OPT_finline_functions))
452 Opts.setInlining(CodeGenOptions::NormalInlining);
453 else if (InlineOpt.matches(options::OPT_finline_hint_functions))
454 Opts.setInlining(CodeGenOptions::OnlyHintInlining);
456 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
459 if (Arg *A = Args.getLastArg(OPT_fveclib)) {
460 StringRef Name = A->getValue();
461 if (Name == "Accelerate")
462 Opts.setVecLib(CodeGenOptions::Accelerate);
463 else if (Name == "SVML")
464 Opts.setVecLib(CodeGenOptions::SVML);
465 else if (Name == "none")
466 Opts.setVecLib(CodeGenOptions::NoLibrary);
468 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
471 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) {
473 llvm::StringSwitch<unsigned>(A->getValue())
474 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly)
475 .Case("limited", codegenoptions::LimitedDebugInfo)
476 .Case("standalone", codegenoptions::FullDebugInfo)
479 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
482 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val));
484 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) {
485 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
486 .Case("gdb", unsigned(llvm::DebuggerKind::GDB))
487 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB))
488 .Case("sce", unsigned(llvm::DebuggerKind::SCE))
491 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
494 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val));
496 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags);
497 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
498 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview);
499 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables);
500 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std);
501 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
502 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining);
503 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs);
504 Opts.DebugExplicitImport = Triple.isPS4CPU();
506 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ))
507 Opts.DebugPrefixMap.insert(StringRef(Arg).split('='));
510 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists))
511 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
513 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
514 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes);
515 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
516 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
517 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
518 OPT_fuse_register_sized_bitfield_access);
519 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
520 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
521 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
522 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
523 Opts.NoCommon = Args.hasArg(OPT_fno_common);
524 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
525 Opts.OptimizeSize = getOptimizationLevelSize(Args);
526 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
527 Args.hasArg(OPT_ffreestanding));
528 if (Opts.SimplifyLibCalls)
529 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
531 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
532 (Opts.OptimizationLevel > 1));
533 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
535 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
536 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
537 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
539 setPGOInstrumentor(Opts, Args, Diags);
540 Opts.InstrProfileOutput =
541 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ);
542 Opts.ProfileInstrumentUsePath =
543 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ);
544 if (!Opts.ProfileInstrumentUsePath.empty())
545 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath);
547 Opts.CoverageMapping =
548 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false);
549 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
550 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
551 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments);
552 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
553 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
554 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
555 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
556 Opts.CodeModel = getCodeModel(Args, Diags);
557 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
559 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg));
560 Opts.DisableFree = Args.hasArg(OPT_disable_free);
561 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names);
562 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
563 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
564 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable);
565 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
566 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
567 Args.hasArg(OPT_cl_finite_math_only) ||
568 Args.hasArg(OPT_cl_fast_relaxed_math));
569 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
570 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
571 Args.hasArg(OPT_cl_finite_math_only) ||
572 Args.hasArg(OPT_cl_fast_relaxed_math));
573 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) ||
574 Args.hasArg(OPT_cl_no_signed_zeros));
575 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero);
576 Opts.CorrectlyRoundedDivSqrt =
577 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt);
578 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
579 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math);
580 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
581 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
582 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
583 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
584 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
585 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
586 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
587 Opts.IncrementalLinkerCompatible =
588 Args.hasArg(OPT_mincremental_linker_compatible);
589 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
590 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
591 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
592 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
593 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
594 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers);
595 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
596 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
597 Args.hasArg(OPT_cl_fast_relaxed_math);
598 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
599 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
600 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
601 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
602 Diags.Report(diag::err_drv_invalid_value)
603 << Args.getLastArg(OPT_mthread_model)->getAsString(Args)
605 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
606 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
608 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
609 OPT_fno_function_sections, false);
610 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
611 OPT_fno_data_sections, false);
612 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
613 OPT_fno_unique_section_names, true);
615 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
617 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables);
619 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ);
620 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ);
621 Opts.EmitSummaryIndex = A && A->containsValue("thin");
622 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) {
623 if (IK != IK_LLVM_IR)
624 Diags.Report(diag::err_drv_argument_only_allowed_with)
625 << A->getAsString(Args) << "-x ir";
626 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ);
629 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile);
631 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive);
632 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
633 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
635 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
636 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
638 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
639 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
640 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
641 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
642 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file);
643 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file);
644 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
645 Opts.CoverageNoFunctionNamesInData =
646 Args.hasArg(OPT_coverage_no_function_names_in_data);
647 Opts.CoverageExitBlockBeforeBody =
648 Args.hasArg(OPT_coverage_exit_block_before_body);
649 if (Args.hasArg(OPT_coverage_version_EQ)) {
650 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
651 if (CoverageVersion.size() != 4) {
652 Diags.Report(diag::err_drv_invalid_value)
653 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
656 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
660 // Handle -fembed-bitcode option.
661 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) {
662 StringRef Name = A->getValue();
663 unsigned Model = llvm::StringSwitch<unsigned>(Name)
664 .Case("off", CodeGenOptions::Embed_Off)
665 .Case("all", CodeGenOptions::Embed_All)
666 .Case("bitcode", CodeGenOptions::Embed_Bitcode)
667 .Case("marker", CodeGenOptions::Embed_Marker)
670 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
673 Opts.setEmbedBitcode(
674 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model));
676 // FIXME: For backend options that are not yet recorded as function
677 // attributes in the IR, keep track of them so we can embed them in a
678 // separate data section and use them when building the bitcode.
679 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) {
680 for (const auto &A : Args) {
681 // Do not encode output and input.
682 if (A->getOption().getID() == options::OPT_o ||
683 A->getOption().getID() == options::OPT_INPUT ||
684 A->getOption().getID() == options::OPT_x ||
685 A->getOption().getID() == options::OPT_fembed_bitcode ||
686 (A->getOption().getGroup().isValid() &&
687 A->getOption().getGroup().getID() == options::OPT_W_Group))
690 A->render(Args, ASL);
691 for (const auto &arg : ASL) {
692 StringRef ArgStr(arg);
693 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end());
694 // using \00 to seperate each commandline options.
695 Opts.CmdArgs.push_back('\0');
700 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
701 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument);
702 Opts.XRayInstructionThreshold =
703 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_, 200, Diags);
704 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
705 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
706 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections);
707 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations);
708 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
709 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) {
710 unsigned LinkFlags = llvm::Linker::Flags::None;
711 if (A->getOption().matches(OPT_mlink_cuda_bitcode))
712 LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded |
713 llvm::Linker::Flags::InternalizeLinkedSymbols;
714 Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue()));
716 Opts.SanitizeCoverageType =
717 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags);
718 Opts.SanitizeCoverageIndirectCalls =
719 Args.hasArg(OPT_fsanitize_coverage_indirect_calls);
720 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb);
721 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp);
722 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div);
723 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep);
724 Opts.SanitizeCoverage8bitCounters =
725 Args.hasArg(OPT_fsanitize_coverage_8bit_counters);
726 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc);
727 Opts.SanitizeCoverageTracePCGuard =
728 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard);
729 Opts.SanitizeMemoryTrackOrigins =
730 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
731 Opts.SanitizeMemoryUseAfterDtor =
732 Args.hasArg(OPT_fsanitize_memory_use_after_dtor);
733 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso);
734 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats);
735 Opts.SanitizeAddressUseAfterScope =
736 Args.hasArg(OPT_fsanitize_address_use_after_scope);
738 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
739 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
740 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
741 StringRef Val = A->getValue();
742 unsigned StackAlignment = Opts.StackAlignment;
743 Val.getAsInteger(10, StackAlignment);
744 Opts.StackAlignment = StackAlignment;
747 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) {
748 StringRef Val = A->getValue();
749 unsigned StackProbeSize = Opts.StackProbeSize;
750 Val.getAsInteger(0, StackProbeSize);
751 Opts.StackProbeSize = StackProbeSize;
754 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
755 StringRef Name = A->getValue();
756 unsigned Method = llvm::StringSwitch<unsigned>(Name)
757 .Case("legacy", CodeGenOptions::Legacy)
758 .Case("non-legacy", CodeGenOptions::NonLegacy)
759 .Case("mixed", CodeGenOptions::Mixed)
762 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
765 Opts.setObjCDispatchMethod(
766 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
771 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false);
773 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
774 StringRef Name = A->getValue();
775 unsigned Model = llvm::StringSwitch<unsigned>(Name)
776 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
777 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
778 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
779 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
782 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
785 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
789 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
790 StringRef Val = A->getValue();
792 Opts.setFPContractMode(CodeGenOptions::FPC_Fast);
793 else if (Val == "on")
794 Opts.setFPContractMode(CodeGenOptions::FPC_On);
795 else if (Val == "off")
796 Opts.setFPContractMode(CodeGenOptions::FPC_Off);
798 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
801 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) {
802 StringRef Val = A->getValue();
804 Opts.FPDenormalMode = "ieee";
805 else if (Val == "preserve-sign")
806 Opts.FPDenormalMode = "preserve-sign";
807 else if (Val == "positive-zero")
808 Opts.FPDenormalMode = "positive-zero";
810 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
813 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
814 if (A->getOption().matches(OPT_fpcc_struct_return)) {
815 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
817 assert(A->getOption().matches(OPT_freg_struct_return));
818 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
822 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
823 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option);
824 bool NeedLocTracking = false;
826 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
827 Opts.OptimizationRemarkPattern =
828 GenerateOptimizationRemarkRegex(Diags, Args, A);
829 NeedLocTracking = true;
832 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
833 Opts.OptimizationRemarkMissedPattern =
834 GenerateOptimizationRemarkRegex(Diags, Args, A);
835 NeedLocTracking = true;
838 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
839 Opts.OptimizationRemarkAnalysisPattern =
840 GenerateOptimizationRemarkRegex(Diags, Args, A);
841 NeedLocTracking = true;
844 Opts.DiagnosticsWithHotness =
845 Args.hasArg(options::OPT_fdiagnostics_show_hotness);
846 if (Opts.DiagnosticsWithHotness &&
847 Opts.getProfileUse() == CodeGenOptions::ProfileNone)
848 Diags.Report(diag::warn_drv_fdiagnostics_show_hotness_requires_pgo);
850 // If the user requested to use a sample profile for PGO, then the
851 // backend will need to track source location information so the profile
852 // can be incorporated into the IR.
853 if (!Opts.SampleProfileFile.empty())
854 NeedLocTracking = true;
856 // If the user requested a flag that requires source locations available in
857 // the backend, make sure that the backend tracks source location information.
858 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo)
859 Opts.setDebugInfo(codegenoptions::LocTrackingOnly);
861 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file);
863 // Parse -fsanitize-recover= arguments.
864 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
865 parseSanitizerKinds("-fsanitize-recover=",
866 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
867 Opts.SanitizeRecover);
868 parseSanitizerKinds("-fsanitize-trap=",
869 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags,
872 Opts.CudaGpuBinaryFileNames =
873 Args.getAllArgValues(OPT_fcuda_include_gpubinary);
875 Opts.Backchain = Args.hasArg(OPT_mbackchain);
877 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue(
878 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags);
883 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
885 using namespace options;
886 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
887 Opts.Targets = Args.getAllArgValues(OPT_MT);
888 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
889 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
890 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
891 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
892 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
893 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
894 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes);
895 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
896 Opts.ModuleDependencyOutputDir =
897 Args.getLastArgValue(OPT_module_dependency_dir);
898 if (Args.hasArg(OPT_MV))
899 Opts.OutputFormat = DependencyOutputFormat::NMake;
900 // Add sanitizer blacklists as extra dependencies.
901 // They won't be discovered by the regular preprocessor, so
902 // we let make / ninja to know about this implicit dependency.
903 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry);
904 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
905 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(),
909 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) {
910 // Color diagnostics default to auto ("on" if terminal supports) in the driver
911 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color.
912 // Support both clang's -f[no-]color-diagnostics and gcc's
913 // -f[no-]diagnostics-colors[=never|always|auto].
918 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off;
919 for (Arg *A : Args) {
920 const Option &O = A->getOption();
921 if (!O.matches(options::OPT_fcolor_diagnostics) &&
922 !O.matches(options::OPT_fdiagnostics_color) &&
923 !O.matches(options::OPT_fno_color_diagnostics) &&
924 !O.matches(options::OPT_fno_diagnostics_color) &&
925 !O.matches(options::OPT_fdiagnostics_color_EQ))
928 if (O.matches(options::OPT_fcolor_diagnostics) ||
929 O.matches(options::OPT_fdiagnostics_color)) {
930 ShowColors = Colors_On;
931 } else if (O.matches(options::OPT_fno_color_diagnostics) ||
932 O.matches(options::OPT_fno_diagnostics_color)) {
933 ShowColors = Colors_Off;
935 assert(O.matches(options::OPT_fdiagnostics_color_EQ));
936 StringRef Value(A->getValue());
937 if (Value == "always")
938 ShowColors = Colors_On;
939 else if (Value == "never")
940 ShowColors = Colors_Off;
941 else if (Value == "auto")
942 ShowColors = Colors_Auto;
945 if (ShowColors == Colors_On ||
946 (ShowColors == Colors_Auto && llvm::sys::Process::StandardErrHasColors()))
951 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
952 DiagnosticsEngine *Diags,
953 bool DefaultDiagColor) {
954 using namespace options;
957 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
959 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
960 Opts.DiagnosticSerializationFile = A->getValue();
961 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
962 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
963 Opts.Pedantic = Args.hasArg(OPT_pedantic);
964 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
965 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
966 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor);
967 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
970 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
971 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
972 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths);
973 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
975 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
977 // Default behavior is to not to show note include stacks.
978 Opts.ShowNoteIncludeStack = false;
979 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
980 OPT_fno_diagnostics_show_note_include_stack))
981 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
982 Opts.ShowNoteIncludeStack = true;
984 StringRef ShowOverloads =
985 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
986 if (ShowOverloads == "best")
987 Opts.setShowOverloads(Ovl_Best);
988 else if (ShowOverloads == "all")
989 Opts.setShowOverloads(Ovl_All);
993 Diags->Report(diag::err_drv_invalid_value)
994 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
998 StringRef ShowCategory =
999 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
1000 if (ShowCategory == "none")
1001 Opts.ShowCategories = 0;
1002 else if (ShowCategory == "id")
1003 Opts.ShowCategories = 1;
1004 else if (ShowCategory == "name")
1005 Opts.ShowCategories = 2;
1009 Diags->Report(diag::err_drv_invalid_value)
1010 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
1015 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
1016 if (Format == "clang")
1017 Opts.setFormat(DiagnosticOptions::Clang);
1018 else if (Format == "msvc")
1019 Opts.setFormat(DiagnosticOptions::MSVC);
1020 else if (Format == "msvc-fallback") {
1021 Opts.setFormat(DiagnosticOptions::MSVC);
1022 Opts.CLFallbackMode = true;
1023 } else if (Format == "vi")
1024 Opts.setFormat(DiagnosticOptions::Vi);
1028 Diags->Report(diag::err_drv_invalid_value)
1029 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
1033 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
1034 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
1035 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
1036 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
1037 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
1038 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=",
1039 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ),
1041 if (Args.hasArg(OPT_verify_ignore_unexpected))
1042 DiagMask = DiagnosticLevelMask::All;
1043 Opts.setVerifyIgnoreUnexpected(DiagMask);
1044 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
1045 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
1046 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
1047 Opts.MacroBacktraceLimit =
1048 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
1049 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
1050 Opts.TemplateBacktraceLimit = getLastArgIntValue(
1051 Args, OPT_ftemplate_backtrace_limit,
1052 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
1053 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
1054 Args, OPT_fconstexpr_backtrace_limit,
1055 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
1056 Opts.SpellCheckingLimit = getLastArgIntValue(
1057 Args, OPT_fspell_checking_limit,
1058 DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
1059 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
1060 DiagnosticOptions::DefaultTabStop, Diags);
1061 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
1062 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
1064 Diags->Report(diag::warn_ignoring_ftabstop_value)
1065 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
1067 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
1068 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
1069 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
1074 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
1075 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
1078 /// Parse the argument to the -ftest-module-file-extension
1079 /// command-line argument.
1081 /// \returns true on error, false on success.
1082 static bool parseTestModuleFileExtensionArg(StringRef Arg,
1083 std::string &BlockName,
1084 unsigned &MajorVersion,
1085 unsigned &MinorVersion,
1087 std::string &UserInfo) {
1088 SmallVector<StringRef, 5> Args;
1089 Arg.split(Args, ':', 5);
1090 if (Args.size() < 5)
1093 BlockName = Args[0];
1094 if (Args[1].getAsInteger(10, MajorVersion)) return true;
1095 if (Args[2].getAsInteger(10, MinorVersion)) return true;
1096 if (Args[3].getAsInteger(2, Hashed)) return true;
1097 if (Args.size() > 4)
1102 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
1103 DiagnosticsEngine &Diags) {
1104 using namespace options;
1105 Opts.ProgramAction = frontend::ParseSyntaxOnly;
1106 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
1107 switch (A->getOption().getID()) {
1109 llvm_unreachable("Invalid option in group!");
1111 Opts.ProgramAction = frontend::ASTDeclList; break;
1113 case OPT_ast_dump_lookups:
1114 Opts.ProgramAction = frontend::ASTDump; break;
1116 Opts.ProgramAction = frontend::ASTPrint; break;
1118 Opts.ProgramAction = frontend::ASTView; break;
1119 case OPT_dump_raw_tokens:
1120 Opts.ProgramAction = frontend::DumpRawTokens; break;
1121 case OPT_dump_tokens:
1122 Opts.ProgramAction = frontend::DumpTokens; break;
1124 Opts.ProgramAction = frontend::EmitAssembly; break;
1125 case OPT_emit_llvm_bc:
1126 Opts.ProgramAction = frontend::EmitBC; break;
1128 Opts.ProgramAction = frontend::EmitHTML; break;
1130 Opts.ProgramAction = frontend::EmitLLVM; break;
1131 case OPT_emit_llvm_only:
1132 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
1133 case OPT_emit_codegen_only:
1134 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
1136 Opts.ProgramAction = frontend::EmitObj; break;
1138 Opts.FixItSuffix = A->getValue();
1141 Opts.ProgramAction = frontend::FixIt; break;
1142 case OPT_emit_module:
1143 Opts.ProgramAction = frontend::GenerateModule; break;
1144 case OPT_emit_module_interface:
1145 Opts.ProgramAction = frontend::GenerateModuleInterface; break;
1147 Opts.ProgramAction = frontend::GeneratePCH; break;
1149 Opts.ProgramAction = frontend::GeneratePTH; break;
1151 Opts.ProgramAction = frontend::InitOnly; break;
1152 case OPT_fsyntax_only:
1153 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
1154 case OPT_module_file_info:
1155 Opts.ProgramAction = frontend::ModuleFileInfo; break;
1156 case OPT_verify_pch:
1157 Opts.ProgramAction = frontend::VerifyPCH; break;
1158 case OPT_print_decl_contexts:
1159 Opts.ProgramAction = frontend::PrintDeclContext; break;
1160 case OPT_print_preamble:
1161 Opts.ProgramAction = frontend::PrintPreamble; break;
1163 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
1164 case OPT_rewrite_macros:
1165 Opts.ProgramAction = frontend::RewriteMacros; break;
1166 case OPT_rewrite_objc:
1167 Opts.ProgramAction = frontend::RewriteObjC; break;
1168 case OPT_rewrite_test:
1169 Opts.ProgramAction = frontend::RewriteTest; break;
1171 Opts.ProgramAction = frontend::RunAnalysis; break;
1173 Opts.ProgramAction = frontend::MigrateSource; break;
1175 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
1179 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
1180 Opts.Plugins.emplace_back(A->getValue(0));
1181 Opts.ProgramAction = frontend::PluginAction;
1182 Opts.ActionName = A->getValue();
1184 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
1185 for (const Arg *AA : Args.filtered(OPT_plugin_arg))
1186 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1));
1188 for (const std::string &Arg :
1189 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) {
1190 std::string BlockName;
1191 unsigned MajorVersion;
1192 unsigned MinorVersion;
1194 std::string UserInfo;
1195 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
1196 MinorVersion, Hashed, UserInfo)) {
1197 Diags.Report(diag::err_test_module_file_extension_format) << Arg;
1202 // Add the testing module file extension.
1203 Opts.ModuleFileExtensions.push_back(
1204 new TestModuleFileExtension(BlockName, MajorVersion, MinorVersion,
1208 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
1209 Opts.CodeCompletionAt =
1210 ParsedSourceLocation::FromString(A->getValue());
1211 if (Opts.CodeCompletionAt.FileName.empty())
1212 Diags.Report(diag::err_drv_invalid_value)
1213 << A->getAsString(Args) << A->getValue();
1215 Opts.DisableFree = Args.hasArg(OPT_disable_free);
1217 Opts.OutputFile = Args.getLastArgValue(OPT_o);
1218 Opts.Plugins = Args.getAllArgValues(OPT_load);
1219 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1220 Opts.ShowHelp = Args.hasArg(OPT_help);
1221 Opts.ShowStats = Args.hasArg(OPT_print_stats);
1222 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1223 Opts.ShowVersion = Args.hasArg(OPT_version);
1224 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1225 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1226 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
1227 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
1228 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
1229 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
1230 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump);
1231 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
1232 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
1233 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
1234 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
1235 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file);
1236 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
1237 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ);
1238 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files);
1239 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp);
1241 Opts.CodeCompleteOpts.IncludeMacros
1242 = Args.hasArg(OPT_code_completion_macros);
1243 Opts.CodeCompleteOpts.IncludeCodePatterns
1244 = Args.hasArg(OPT_code_completion_patterns);
1245 Opts.CodeCompleteOpts.IncludeGlobals
1246 = !Args.hasArg(OPT_no_code_completion_globals);
1247 Opts.CodeCompleteOpts.IncludeBriefComments
1248 = Args.hasArg(OPT_code_completion_brief_comments);
1250 Opts.OverrideRecordLayoutsFile
1251 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
1253 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple));
1254 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ);
1255 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file);
1257 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
1259 OPT_arcmt_migrate)) {
1260 switch (A->getOption().getID()) {
1262 llvm_unreachable("missed a case");
1263 case OPT_arcmt_check:
1264 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
1266 case OPT_arcmt_modify:
1267 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
1269 case OPT_arcmt_migrate:
1270 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
1274 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
1275 Opts.ARCMTMigrateReportOut
1276 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
1277 Opts.ARCMTMigrateEmitARCErrors
1278 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
1280 if (Args.hasArg(OPT_objcmt_migrate_literals))
1281 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
1282 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
1283 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
1284 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
1285 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
1286 if (Args.hasArg(OPT_objcmt_migrate_property))
1287 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
1288 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
1289 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
1290 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
1291 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
1292 if (Args.hasArg(OPT_objcmt_migrate_annotation))
1293 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
1294 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
1295 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
1296 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
1297 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
1298 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
1299 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
1300 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
1301 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
1302 if (Args.hasArg(OPT_objcmt_atomic_property))
1303 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
1304 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
1305 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
1306 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
1307 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
1308 if (Args.hasArg(OPT_objcmt_migrate_all))
1309 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
1311 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
1313 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
1314 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
1315 Diags.Report(diag::err_drv_argument_not_allowed_with)
1316 << "ARC migration" << "ObjC migration";
1319 InputKind DashX = IK_None;
1320 if (const Arg *A = Args.getLastArg(OPT_x)) {
1321 DashX = llvm::StringSwitch<InputKind>(A->getValue())
1323 .Case("cl", IK_OpenCL)
1324 .Case("cuda", IK_CUDA)
1325 .Case("c++", IK_CXX)
1326 .Case("c++-module", IK_CXX)
1327 .Case("objective-c", IK_ObjC)
1328 .Case("objective-c++", IK_ObjCXX)
1329 .Case("cpp-output", IK_PreprocessedC)
1330 .Case("assembler-with-cpp", IK_Asm)
1331 .Case("c++-cpp-output", IK_PreprocessedCXX)
1332 .Case("c++-module-cpp-output", IK_PreprocessedCXX)
1333 .Case("cuda-cpp-output", IK_PreprocessedCuda)
1334 .Case("objective-c-cpp-output", IK_PreprocessedObjC)
1335 .Case("objc-cpp-output", IK_PreprocessedObjC)
1336 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
1337 .Case("objc++-cpp-output", IK_PreprocessedObjCXX)
1338 .Case("c-header", IK_C)
1339 .Case("cl-header", IK_OpenCL)
1340 .Case("objective-c-header", IK_ObjC)
1341 .Case("c++-header", IK_CXX)
1342 .Case("objective-c++-header", IK_ObjCXX)
1343 .Cases("ast", "pcm", IK_AST)
1344 .Case("ir", IK_LLVM_IR)
1345 .Case("renderscript", IK_RenderScript)
1347 if (DashX == IK_None)
1348 Diags.Report(diag::err_drv_invalid_value)
1349 << A->getAsString(Args) << A->getValue();
1352 // '-' is the default input if none is given.
1353 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1354 Opts.Inputs.clear();
1356 Inputs.push_back("-");
1357 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1358 InputKind IK = DashX;
1359 if (IK == IK_None) {
1360 IK = FrontendOptions::getInputKindForExtension(
1361 StringRef(Inputs[i]).rsplit('.').second);
1362 // FIXME: Remove this hack.
1366 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK);
1372 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1374 std::string ClangExecutable =
1375 llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
1376 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable);
1378 // Compute the path to the resource directory.
1379 StringRef ClangResourceDir(CLANG_RESOURCE_DIR);
1380 SmallString<128> P(Dir);
1381 if (ClangResourceDir != "")
1382 llvm::sys::path::append(P, ClangResourceDir);
1384 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX,
1385 "clang", CLANG_VERSION_STRING);
1390 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
1391 using namespace options;
1392 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1393 Opts.Verbose = Args.hasArg(OPT_v);
1394 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1395 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
1396 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1397 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
1398 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
1399 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1400 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path);
1401 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
1402 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path))
1403 Opts.AddPrebuiltModulePath(A->getValue());
1404 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
1405 Opts.ModulesValidateDiagnosticOptions =
1406 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation);
1407 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps);
1408 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd);
1409 Opts.ModuleCachePruneInterval =
1410 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
1411 Opts.ModuleCachePruneAfter =
1412 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
1413 Opts.ModulesValidateOncePerBuildSession =
1414 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
1415 Opts.BuildSessionTimestamp =
1416 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
1417 Opts.ModulesValidateSystemHeaders =
1418 Args.hasArg(OPT_fmodules_validate_system_headers);
1419 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ))
1420 Opts.ModuleFormat = A->getValue();
1422 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) {
1423 StringRef MacroDef = A->getValue();
1424 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first);
1427 // Add -I..., -F..., and -index-header-map options in order.
1428 bool IsIndexHeaderMap = false;
1429 bool IsSysrootSpecified =
1430 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot);
1431 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) {
1432 if (A->getOption().matches(OPT_index_header_map)) {
1433 // -index-header-map applies to the next -I or -F.
1434 IsIndexHeaderMap = true;
1438 frontend::IncludeDirGroup Group =
1439 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled;
1441 bool IsFramework = A->getOption().matches(OPT_F);
1442 std::string Path = A->getValue();
1444 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') {
1445 SmallString<32> Buffer;
1446 llvm::sys::path::append(Buffer, Opts.Sysroot,
1447 llvm::StringRef(A->getValue()).substr(1));
1448 Path = Buffer.str();
1451 Opts.AddPath(Path.c_str(), Group, IsFramework,
1452 /*IgnoreSysroot*/ true);
1453 IsIndexHeaderMap = false;
1456 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
1457 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
1459 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) {
1460 if (A->getOption().matches(OPT_iprefix))
1461 Prefix = A->getValue();
1462 else if (A->getOption().matches(OPT_iwithprefix))
1463 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true);
1465 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true);
1468 for (const Arg *A : Args.filtered(OPT_idirafter))
1469 Opts.AddPath(A->getValue(), frontend::After, false, true);
1470 for (const Arg *A : Args.filtered(OPT_iquote))
1471 Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
1472 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
1473 Opts.AddPath(A->getValue(), frontend::System, false,
1474 !A->getOption().matches(OPT_iwithsysroot));
1475 for (const Arg *A : Args.filtered(OPT_iframework))
1476 Opts.AddPath(A->getValue(), frontend::System, true, true);
1478 // Add the paths for the various language specific isystem flags.
1479 for (const Arg *A : Args.filtered(OPT_c_isystem))
1480 Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
1481 for (const Arg *A : Args.filtered(OPT_cxx_isystem))
1482 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
1483 for (const Arg *A : Args.filtered(OPT_objc_isystem))
1484 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
1485 for (const Arg *A : Args.filtered(OPT_objcxx_isystem))
1486 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
1488 // Add the internal paths from a driver that detects standard include paths.
1490 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) {
1491 frontend::IncludeDirGroup Group = frontend::System;
1492 if (A->getOption().matches(OPT_internal_externc_isystem))
1493 Group = frontend::ExternCSystem;
1494 Opts.AddPath(A->getValue(), Group, false, true);
1497 // Add the path prefixes which are implicitly treated as being system headers.
1499 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix))
1500 Opts.AddSystemHeaderPrefix(
1501 A->getValue(), A->getOption().matches(OPT_system_header_prefix));
1503 for (const Arg *A : Args.filtered(OPT_ivfsoverlay))
1504 Opts.AddVFSOverlayFile(A->getValue());
1507 static bool isOpenCL(LangStandard::Kind LangStd) {
1508 return LangStd == LangStandard::lang_opencl ||
1509 LangStd == LangStandard::lang_opencl11 ||
1510 LangStd == LangStandard::lang_opencl12 ||
1511 LangStd == LangStandard::lang_opencl20;
1514 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
1515 const llvm::Triple &T,
1516 PreprocessorOptions &PPOpts,
1517 LangStandard::Kind LangStd) {
1518 // Set some properties which depend solely on the input kind; it would be nice
1519 // to move these to the language standard, and have the driver resolve the
1520 // input kind + language standard.
1522 Opts.AsmPreprocessor = 1;
1523 } else if (IK == IK_ObjC ||
1525 IK == IK_PreprocessedObjC ||
1526 IK == IK_PreprocessedObjCXX) {
1527 Opts.ObjC1 = Opts.ObjC2 = 1;
1530 if (LangStd == LangStandard::lang_unspecified) {
1531 // Based on the base language, pick one.
1536 llvm_unreachable("Invalid input kind!");
1538 LangStd = LangStandard::lang_opencl;
1541 case IK_PreprocessedCuda:
1542 LangStd = LangStandard::lang_cuda;
1546 case IK_PreprocessedC:
1548 case IK_PreprocessedObjC:
1549 // The PS4 uses C99 as the default C standard.
1551 LangStd = LangStandard::lang_gnu99;
1553 LangStd = LangStandard::lang_gnu11;
1556 case IK_PreprocessedCXX:
1558 case IK_PreprocessedObjCXX:
1559 LangStd = LangStandard::lang_gnucxx98;
1561 case IK_RenderScript:
1562 LangStd = LangStandard::lang_c99;
1567 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1568 Opts.LineComment = Std.hasLineComments();
1569 Opts.C99 = Std.isC99();
1570 Opts.C11 = Std.isC11();
1571 Opts.CPlusPlus = Std.isCPlusPlus();
1572 Opts.CPlusPlus11 = Std.isCPlusPlus11();
1573 Opts.CPlusPlus14 = Std.isCPlusPlus14();
1574 Opts.CPlusPlus1z = Std.isCPlusPlus1z();
1575 Opts.Digraphs = Std.hasDigraphs();
1576 Opts.GNUMode = Std.isGNUMode();
1577 Opts.GNUInline = Std.isC89();
1578 Opts.HexFloats = Std.hasHexFloats();
1579 Opts.ImplicitInt = Std.hasImplicitInt();
1581 // Set OpenCL Version.
1582 Opts.OpenCL = isOpenCL(LangStd) || IK == IK_OpenCL;
1583 if (LangStd == LangStandard::lang_opencl)
1584 Opts.OpenCLVersion = 100;
1585 else if (LangStd == LangStandard::lang_opencl11)
1586 Opts.OpenCLVersion = 110;
1587 else if (LangStd == LangStandard::lang_opencl12)
1588 Opts.OpenCLVersion = 120;
1589 else if (LangStd == LangStandard::lang_opencl20)
1590 Opts.OpenCLVersion = 200;
1592 // OpenCL has some additional defaults.
1596 Opts.CXXOperatorNames = 1;
1597 Opts.LaxVectorConversions = 0;
1598 Opts.DefaultFPContract = 1;
1599 Opts.NativeHalfType = 1;
1600 Opts.NativeHalfArgsAndReturns = 1;
1601 // Include default header file for OpenCL.
1602 if (Opts.IncludeDefaultHeader) {
1603 PPOpts.Includes.push_back("opencl-c.h");
1607 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda ||
1608 LangStd == LangStandard::lang_cuda;
1610 Opts.RenderScript = IK == IK_RenderScript;
1611 if (Opts.RenderScript) {
1612 Opts.NativeHalfType = 1;
1613 Opts.NativeHalfArgsAndReturns = 1;
1616 // OpenCL and C++ both have bool, true, false keywords.
1617 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1619 // OpenCL has half keyword
1620 Opts.Half = Opts.OpenCL;
1622 // C++ has wchar_t keyword.
1623 Opts.WChar = Opts.CPlusPlus;
1625 Opts.GNUKeywords = Opts.GNUMode;
1626 Opts.CXXOperatorNames = Opts.CPlusPlus;
1628 Opts.AlignedAllocation = Opts.CPlusPlus1z;
1630 Opts.DollarIdents = !Opts.AsmPreprocessor;
1633 /// Attempt to parse a visibility value out of the given argument.
1634 static Visibility parseVisibility(Arg *arg, ArgList &args,
1635 DiagnosticsEngine &diags) {
1636 StringRef value = arg->getValue();
1637 if (value == "default") {
1638 return DefaultVisibility;
1639 } else if (value == "hidden" || value == "internal") {
1640 return HiddenVisibility;
1641 } else if (value == "protected") {
1642 // FIXME: diagnose if target does not support protected visibility
1643 return ProtectedVisibility;
1646 diags.Report(diag::err_drv_invalid_value)
1647 << arg->getAsString(args) << value;
1648 return DefaultVisibility;
1651 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
1652 const TargetOptions &TargetOpts,
1653 PreprocessorOptions &PPOpts,
1654 DiagnosticsEngine &Diags) {
1655 // FIXME: Cleanup per-file based stuff.
1656 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1657 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
1658 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1659 #define LANGSTANDARD(id, name, desc, features) \
1660 .Case(name, LangStandard::lang_##id)
1661 #define LANGSTANDARD_ALIAS(id, alias) \
1662 .Case(alias, LangStandard::lang_##id)
1663 #include "clang/Frontend/LangStandards.def"
1664 .Default(LangStandard::lang_unspecified);
1665 if (LangStd == LangStandard::lang_unspecified)
1666 Diags.Report(diag::err_drv_invalid_value)
1667 << A->getAsString(Args) << A->getValue();
1669 // Valid standard, check to make sure language and standard are
1671 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1675 case IK_PreprocessedC:
1676 case IK_PreprocessedObjC:
1677 if (!(Std.isC89() || Std.isC99()))
1678 Diags.Report(diag::err_drv_argument_not_allowed_with)
1679 << A->getAsString(Args) << "C/ObjC";
1683 case IK_PreprocessedCXX:
1684 case IK_PreprocessedObjCXX:
1685 if (!Std.isCPlusPlus())
1686 Diags.Report(diag::err_drv_argument_not_allowed_with)
1687 << A->getAsString(Args) << "C++/ObjC++";
1690 if (!isOpenCL(LangStd))
1691 Diags.Report(diag::err_drv_argument_not_allowed_with)
1692 << A->getAsString(Args) << "OpenCL";
1695 case IK_PreprocessedCuda:
1696 if (!Std.isCPlusPlus())
1697 Diags.Report(diag::err_drv_argument_not_allowed_with)
1698 << A->getAsString(Args) << "CUDA";
1706 // -cl-std only applies for OpenCL language standards.
1707 // Override the -std option in this case.
1708 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
1709 LangStandard::Kind OpenCLLangStd
1710 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1711 .Cases("cl", "CL", LangStandard::lang_opencl)
1712 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11)
1713 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12)
1714 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20)
1715 .Default(LangStandard::lang_unspecified);
1717 if (OpenCLLangStd == LangStandard::lang_unspecified) {
1718 Diags.Report(diag::err_drv_invalid_value)
1719 << A->getAsString(Args) << A->getValue();
1722 LangStd = OpenCLLangStd;
1725 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header);
1727 llvm::Triple T(TargetOpts.Triple);
1728 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd);
1730 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0.
1731 // This option should be deprecated for CL > 1.0 because
1732 // this option was added for compatibility with OpenCL 1.0.
1733 if (Args.getLastArg(OPT_cl_strict_aliasing)
1734 && Opts.OpenCLVersion > 100) {
1735 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) +
1737 llvm::to_string((Opts.OpenCLVersion % 100) / 10);
1738 Diags.Report(diag::warn_option_invalid_ocl_version)
1739 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args);
1742 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1743 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1744 // while a subset (the non-C++ GNU keywords) is provided by GCC's
1745 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1746 // name, as it doesn't seem a useful distinction.
1747 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
1750 if (Args.hasArg(OPT_fno_operator_names))
1751 Opts.CXXOperatorNames = 0;
1753 if (Args.hasArg(OPT_fcuda_is_device))
1754 Opts.CUDAIsDevice = 1;
1756 if (Args.hasArg(OPT_fcuda_allow_variadic_functions))
1757 Opts.CUDAAllowVariadicFunctions = 1;
1759 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr))
1760 Opts.CUDAHostDeviceConstexpr = 0;
1762 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero))
1763 Opts.CUDADeviceFlushDenormalsToZero = 1;
1765 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals))
1766 Opts.CUDADeviceApproxTranscendentals = 1;
1769 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
1770 StringRef value = arg->getValue();
1771 if (Opts.ObjCRuntime.tryParse(value))
1772 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
1775 if (Args.hasArg(OPT_fobjc_gc_only))
1776 Opts.setGC(LangOptions::GCOnly);
1777 else if (Args.hasArg(OPT_fobjc_gc))
1778 Opts.setGC(LangOptions::HybridGC);
1779 else if (Args.hasArg(OPT_fobjc_arc)) {
1780 Opts.ObjCAutoRefCount = 1;
1781 if (!Opts.ObjCRuntime.allowsARC())
1782 Diags.Report(diag::err_arc_unsupported_on_runtime);
1785 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
1786 // whether the feature is actually enabled. This is predominantly
1787 // determined by -fobjc-runtime, but we allow it to be overridden
1788 // from the command line for testing purposes.
1789 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
1790 Opts.ObjCWeakRuntime = 1;
1792 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
1794 // ObjCWeak determines whether __weak is actually enabled.
1795 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
1796 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) {
1797 if (!weakArg->getOption().matches(OPT_fobjc_weak)) {
1798 assert(!Opts.ObjCWeak);
1799 } else if (Opts.getGC() != LangOptions::NonGC) {
1800 Diags.Report(diag::err_objc_weak_with_gc);
1801 } else if (!Opts.ObjCWeakRuntime) {
1802 Diags.Report(diag::err_objc_weak_unsupported);
1806 } else if (Opts.ObjCAutoRefCount) {
1807 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
1810 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
1811 Opts.ObjCInferRelatedResultType = 0;
1813 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
1814 Opts.ObjCSubscriptingLegacyRuntime =
1815 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
1818 if (Args.hasArg(OPT_fgnu89_inline)) {
1820 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline"
1826 if (Args.hasArg(OPT_fapple_kext)) {
1827 if (!Opts.CPlusPlus)
1828 Diags.Report(diag::warn_c_kext);
1833 if (Args.hasArg(OPT_print_ivar_layout))
1834 Opts.ObjCGCBitmapPrint = 1;
1835 if (Args.hasArg(OPT_fno_constant_cfstrings))
1836 Opts.NoConstantCFStrings = 1;
1838 if (Args.hasArg(OPT_faltivec))
1841 if (Args.hasArg(OPT_fzvector))
1844 if (Args.hasArg(OPT_pthread))
1845 Opts.POSIXThreads = 1;
1847 // The value-visibility mode defaults to "default".
1848 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
1849 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
1851 Opts.setValueVisibilityMode(DefaultVisibility);
1854 // The type-visibility mode defaults to the value-visibility mode.
1855 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
1856 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
1858 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
1861 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
1862 Opts.InlineVisibilityHidden = 1;
1864 if (Args.hasArg(OPT_ftrapv)) {
1865 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
1866 // Set the handler, if one is specified.
1867 Opts.OverflowHandler =
1868 Args.getLastArgValue(OPT_ftrapv_handler);
1870 else if (Args.hasArg(OPT_fwrapv))
1871 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
1873 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
1874 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
1875 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
1876 Opts.MSCompatibilityVersion = 0;
1877 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) {
1879 if (VT.tryParse(A->getValue()))
1880 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
1882 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
1883 VT.getMinor().getValueOr(0) * 100000 +
1884 VT.getSubminor().getValueOr(0);
1887 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1888 // is specified, or -std is set to a conforming mode.
1889 // Trigraphs are disabled by default in c++1z onwards.
1890 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z;
1892 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs);
1894 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
1895 OPT_fno_dollars_in_identifiers,
1897 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
1898 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags);
1899 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
1900 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
1901 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
1903 if (Args.hasArg(OPT_fno_lax_vector_conversions))
1904 Opts.LaxVectorConversions = 0;
1905 if (Args.hasArg(OPT_fno_threadsafe_statics))
1906 Opts.ThreadsafeStatics = 0;
1907 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
1908 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
1909 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
1910 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
1911 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind);
1912 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
1914 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti);
1915 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
1916 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL
1917 && Opts.OpenCLVersion >= 200);
1918 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
1919 Opts.Coroutines = Args.hasArg(OPT_fcoroutines);
1920 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts);
1921 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS;
1922 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse);
1923 Opts.ModulesDeclUse =
1924 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
1925 Opts.ModulesLocalVisibility =
1926 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS;
1927 Opts.ModulesSearchAll = Opts.Modules &&
1928 !Args.hasArg(OPT_fno_modules_search_all) &&
1929 Args.hasArg(OPT_fmodules_search_all);
1930 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
1931 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules);
1932 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
1933 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
1934 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false);
1935 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
1936 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
1937 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
1938 if (!Opts.NoBuiltin)
1939 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
1940 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
1941 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation);
1942 Opts.AlignedAllocation =
1943 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation,
1944 Opts.AlignedAllocation);
1945 Opts.NewAlignOverride =
1946 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags);
1947 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) {
1948 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ);
1949 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args)
1951 Opts.NewAlignOverride = 0;
1953 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts);
1954 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
1955 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
1956 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
1957 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
1958 Opts.InstantiationDepth =
1959 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags);
1961 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
1962 Opts.ConstexprCallDepth =
1963 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
1964 Opts.ConstexprStepLimit =
1965 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
1966 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
1967 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
1968 Opts.NumLargeByValueCopy =
1969 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
1970 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
1971 Opts.ObjCConstantStringClass =
1972 Args.getLastArgValue(OPT_fconstant_string_class);
1973 Opts.ObjCDefaultSynthProperties =
1974 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
1975 Opts.EncodeExtendedBlockSig =
1976 Args.hasArg(OPT_fencode_extended_block_signature);
1977 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
1978 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
1979 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags);
1980 Opts.AlignDouble = Args.hasArg(OPT_malign_double);
1981 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
1982 Opts.PIE = Args.hasArg(OPT_pic_is_pie);
1983 Opts.Static = Args.hasArg(OPT_static_define);
1984 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
1985 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
1986 || Args.hasArg(OPT_fdump_record_layouts);
1987 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
1988 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
1989 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
1990 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
1991 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
1992 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
1993 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
1994 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
1995 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
1996 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
1997 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
1998 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
1999 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ);
2000 Opts.AppExt = Args.hasArg(OPT_fapplication_extension);
2001 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature);
2002 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end());
2003 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type);
2004 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns);
2005 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns
2007 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns)
2008 | Opts.NativeHalfArgsAndReturns;
2009 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm);
2011 // __declspec is enabled by default for the PS4 by the driver, and also
2012 // enabled for Microsoft Extensions or Borland Extensions, here.
2014 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a
2015 // CUDA extension, however it is required for supporting cuda_builtin_vars.h,
2016 // which uses __declspec(property). Once that has been rewritten in terms of
2017 // something more generic, remove the Opts.CUDA term here.
2018 Opts.DeclSpecKeyword =
2019 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec,
2020 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA));
2022 // For now, we only support local submodule visibility in C++ (because we
2023 // heavily depend on the ODR for merging redefinitions).
2024 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus)
2025 Diags.Report(diag::err_drv_argument_not_allowed_with)
2026 << "-fmodules-local-submodule-visibility" << "C";
2028 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
2029 switch (llvm::StringSwitch<unsigned>(A->getValue())
2030 .Case("target", LangOptions::ASMM_Target)
2031 .Case("no", LangOptions::ASMM_Off)
2032 .Case("yes", LangOptions::ASMM_On)
2035 Diags.Report(diag::err_drv_invalid_value)
2036 << "-faddress-space-map-mangling=" << A->getValue();
2038 case LangOptions::ASMM_Target:
2039 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
2041 case LangOptions::ASMM_On:
2042 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
2044 case LangOptions::ASMM_Off:
2045 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
2050 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
2051 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
2052 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
2055 LangOptions::PPTMK_FullGeneralitySingleInheritance)
2057 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
2059 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
2060 .Default(LangOptions::PPTMK_BestCase);
2061 if (InheritanceModel == LangOptions::PPTMK_BestCase)
2062 Diags.Report(diag::err_drv_invalid_value)
2063 << "-fms-memptr-rep=" << A->getValue();
2065 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
2068 // Check for MS default calling conventions being specified.
2069 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) {
2070 LangOptions::DefaultCallingConvention DefaultCC =
2071 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(
2073 .Case("cdecl", LangOptions::DCC_CDecl)
2074 .Case("fastcall", LangOptions::DCC_FastCall)
2075 .Case("stdcall", LangOptions::DCC_StdCall)
2076 .Case("vectorcall", LangOptions::DCC_VectorCall)
2077 .Default(LangOptions::DCC_None);
2078 if (DefaultCC == LangOptions::DCC_None)
2079 Diags.Report(diag::err_drv_invalid_value)
2080 << "-fdefault-calling-conv=" << A->getValue();
2082 llvm::Triple T(TargetOpts.Triple);
2083 llvm::Triple::ArchType Arch = T.getArch();
2084 bool emitError = (DefaultCC == LangOptions::DCC_FastCall ||
2085 DefaultCC == LangOptions::DCC_StdCall) &&
2086 Arch != llvm::Triple::x86;
2087 emitError |= DefaultCC == LangOptions::DCC_VectorCall &&
2088 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64);
2090 Diags.Report(diag::err_drv_argument_not_allowed_with)
2091 << A->getSpelling() << T.getTriple();
2093 Opts.setDefaultCallingConv(DefaultCC);
2097 if (Arg *A = Args.getLastArg(OPT_mrtd)) {
2098 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None)
2099 Diags.Report(diag::err_drv_argument_not_allowed_with)
2100 << A->getSpelling() << "-fdefault-calling-conv";
2102 llvm::Triple T(TargetOpts.Triple);
2103 if (T.getArch() != llvm::Triple::x86)
2104 Diags.Report(diag::err_drv_argument_not_allowed_with)
2105 << A->getSpelling() << T.getTriple();
2107 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall);
2111 // Check if -fopenmp is specified.
2112 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0;
2114 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls);
2115 Opts.OpenMPIsDevice =
2116 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device);
2120 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags);
2122 Opts.OpenMP = Version;
2123 // Provide diagnostic when a given target is not expected to be an OpenMP
2125 if (!Opts.OpenMPIsDevice) {
2126 switch (T.getArch()) {
2129 // Add unsupported host targets here:
2130 case llvm::Triple::nvptx:
2131 case llvm::Triple::nvptx64:
2132 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported)
2133 << TargetOpts.Triple;
2139 // Get the OpenMP target triples if any.
2140 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) {
2142 for (unsigned i = 0; i < A->getNumValues(); ++i) {
2143 llvm::Triple TT(A->getValue(i));
2145 if (TT.getArch() == llvm::Triple::UnknownArch)
2146 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i);
2148 Opts.OMPTargetTriples.push_back(TT);
2152 // Get OpenMP host file path if any and report if a non existent file is
2154 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) {
2155 Opts.OMPHostIRFile = A->getValue();
2156 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile))
2157 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found)
2158 << Opts.OMPHostIRFile;
2161 // Record whether the __DEPRECATED define was requested.
2162 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
2163 OPT_fno_deprecated_macro,
2166 // FIXME: Eliminate this dependency.
2167 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
2168 OptSize = getOptimizationLevelSize(Args);
2169 Opts.Optimize = Opt != 0;
2170 Opts.OptimizeSize = OptSize != 0;
2172 // This is the __NO_INLINE__ define, which just depends on things like the
2173 // optimization level and -fno-inline, not actually whether the backend has
2174 // inlining enabled.
2175 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline);
2177 Opts.FastMath = Args.hasArg(OPT_ffast_math) ||
2178 Args.hasArg(OPT_cl_fast_relaxed_math);
2179 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) ||
2180 Args.hasArg(OPT_cl_finite_math_only) ||
2181 Args.hasArg(OPT_cl_fast_relaxed_math);
2182 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
2183 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
2184 Args.hasArg(OPT_cl_fast_relaxed_math);
2186 Opts.RetainCommentsFromSystemHeaders =
2187 Args.hasArg(OPT_fretain_comments_from_system_headers);
2189 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
2192 Diags.Report(diag::err_drv_invalid_value)
2193 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
2195 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
2196 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
2197 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
2198 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
2201 // Parse -fsanitize= arguments.
2202 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
2203 Diags, Opts.Sanitize);
2204 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here.
2205 Opts.SanitizeAddressFieldPadding =
2206 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags);
2207 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist);
2210 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
2211 FileManager &FileMgr,
2212 DiagnosticsEngine &Diags) {
2213 using namespace options;
2214 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
2215 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
2216 if (const Arg *A = Args.getLastArg(OPT_token_cache))
2217 Opts.TokenCache = A->getValue();
2219 Opts.TokenCache = Opts.ImplicitPTHInclude;
2220 Opts.UsePredefines = !Args.hasArg(OPT_undef);
2221 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
2222 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
2224 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
2225 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl))
2226 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
2228 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
2229 StringRef Value(A->getValue());
2230 size_t Comma = Value.find(',');
2232 unsigned EndOfLine = 0;
2234 if (Comma == StringRef::npos ||
2235 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
2236 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
2237 Diags.Report(diag::err_drv_preamble_format);
2239 Opts.PrecompiledPreambleBytes.first = Bytes;
2240 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
2244 // Add macros from the command line.
2245 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) {
2246 if (A->getOption().matches(OPT_D))
2247 Opts.addMacroDef(A->getValue());
2249 Opts.addMacroUndef(A->getValue());
2252 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
2254 // Add the ordered list of -includes.
2255 for (const Arg *A : Args.filtered(OPT_include))
2256 Opts.Includes.emplace_back(A->getValue());
2258 for (const Arg *A : Args.filtered(OPT_chain_include))
2259 Opts.ChainedIncludes.emplace_back(A->getValue());
2261 for (const Arg *A : Args.filtered(OPT_remap_file)) {
2262 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
2264 if (Split.second.empty()) {
2265 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
2269 Opts.addRemappedFile(Split.first, Split.second);
2272 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
2273 StringRef Name = A->getValue();
2274 unsigned Library = llvm::StringSwitch<unsigned>(Name)
2275 .Case("libc++", ARCXX_libcxx)
2276 .Case("libstdc++", ARCXX_libstdcxx)
2277 .Case("none", ARCXX_nolib)
2280 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
2282 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
2286 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
2288 frontend::ActionKind Action) {
2289 using namespace options;
2292 case frontend::ASTDeclList:
2293 case frontend::ASTDump:
2294 case frontend::ASTPrint:
2295 case frontend::ASTView:
2296 case frontend::EmitAssembly:
2297 case frontend::EmitBC:
2298 case frontend::EmitHTML:
2299 case frontend::EmitLLVM:
2300 case frontend::EmitLLVMOnly:
2301 case frontend::EmitCodeGenOnly:
2302 case frontend::EmitObj:
2303 case frontend::FixIt:
2304 case frontend::GenerateModule:
2305 case frontend::GenerateModuleInterface:
2306 case frontend::GeneratePCH:
2307 case frontend::GeneratePTH:
2308 case frontend::ParseSyntaxOnly:
2309 case frontend::ModuleFileInfo:
2310 case frontend::VerifyPCH:
2311 case frontend::PluginAction:
2312 case frontend::PrintDeclContext:
2313 case frontend::RewriteObjC:
2314 case frontend::RewriteTest:
2315 case frontend::RunAnalysis:
2316 case frontend::MigrateSource:
2320 case frontend::DumpRawTokens:
2321 case frontend::DumpTokens:
2322 case frontend::InitOnly:
2323 case frontend::PrintPreamble:
2324 case frontend::PrintPreprocessedInput:
2325 case frontend::RewriteMacros:
2326 case frontend::RunPreprocessorOnly:
2327 Opts.ShowCPP = !Args.hasArg(OPT_dM);
2331 Opts.ShowComments = Args.hasArg(OPT_C);
2332 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
2333 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
2334 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
2335 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
2336 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives);
2339 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args,
2340 DiagnosticsEngine &Diags) {
2341 using namespace options;
2342 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
2343 if (Arg *A = Args.getLastArg(OPT_meabi)) {
2344 StringRef Value = A->getValue();
2345 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value)
2346 .Case("default", llvm::EABI::Default)
2347 .Case("4", llvm::EABI::EABI4)
2348 .Case("5", llvm::EABI::EABI5)
2349 .Case("gnu", llvm::EABI::GNU)
2350 .Default(llvm::EABI::Unknown);
2351 if (EABIVersion == llvm::EABI::Unknown)
2352 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
2355 Opts.EABIVersion = Value;
2357 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
2358 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
2359 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
2360 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
2361 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
2362 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ);
2363 // Use the default target triple if unspecified.
2364 if (Opts.Triple.empty())
2365 Opts.Triple = llvm::sys::getDefaultTargetTriple();
2368 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
2369 const char *const *ArgBegin,
2370 const char *const *ArgEnd,
2371 DiagnosticsEngine &Diags) {
2372 bool Success = true;
2374 // Parse the arguments.
2375 std::unique_ptr<OptTable> Opts(createDriverOptTable());
2376 const unsigned IncludedFlagsBitmask = options::CC1Option;
2377 unsigned MissingArgIndex, MissingArgCount;
2379 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex,
2380 MissingArgCount, IncludedFlagsBitmask);
2381 LangOptions &LangOpts = *Res.getLangOpts();
2383 // Check for missing argument error.
2384 if (MissingArgCount) {
2385 Diags.Report(diag::err_drv_missing_argument)
2386 << Args.getArgString(MissingArgIndex) << MissingArgCount;
2390 // Issue errors on unknown arguments.
2391 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) {
2392 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args);
2396 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
2397 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args);
2398 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args);
2399 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags,
2400 false /*DefaultDiagColor*/);
2401 ParseCommentArgs(LangOpts.CommentOpts, Args);
2402 ParseFileSystemArgs(Res.getFileSystemOpts(), Args);
2403 // FIXME: We shouldn't have to pass the DashX option around here
2404 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags);
2405 ParseTargetArgs(Res.getTargetOpts(), Args, Diags);
2406 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
2407 Res.getTargetOpts());
2408 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args);
2409 if (DashX == IK_AST || DashX == IK_LLVM_IR) {
2410 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
2411 // PassManager in BackendUtil.cpp. They need to be initializd no matter
2412 // what the input type is.
2413 if (Args.hasArg(OPT_fobjc_arc))
2414 LangOpts.ObjCAutoRefCount = 1;
2415 // PIClevel and PIELevel are needed during code generation and this should be
2416 // set regardless of the input type.
2417 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
2418 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie);
2419 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
2420 Diags, LangOpts.Sanitize);
2422 // Other LangOpts are only initialzed when the input is not AST or LLVM IR.
2423 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(),
2424 Res.getPreprocessorOpts(), Diags);
2425 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
2426 LangOpts.ObjCExceptions = 1;
2429 if (LangOpts.CUDA) {
2430 // During CUDA device-side compilation, the aux triple is the
2431 // triple used for host compilation.
2432 if (LangOpts.CUDAIsDevice)
2433 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
2435 // Set default FP_CONTRACT to FAST.
2436 if (!Args.hasArg(OPT_ffp_contract))
2437 Res.getCodeGenOpts().setFPContractMode(CodeGenOptions::FPC_Fast);
2440 // FIXME: Override value name discarding when asan or msan is used because the
2441 // backend passes depend on the name of the alloca in order to print out
2443 Res.getCodeGenOpts().DiscardValueNames &=
2444 !LangOpts.Sanitize.has(SanitizerKind::Address) &&
2445 !LangOpts.Sanitize.has(SanitizerKind::Memory);
2447 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of
2448 // PCH file and find the original header name. Remove the need to do that in
2449 // ParsePreprocessorArgs and remove the FileManager
2450 // parameters from the function and the "FileManager.h" #include.
2451 FileManager FileMgr(Res.getFileSystemOpts());
2452 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags);
2453 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args,
2454 Res.getFrontendOpts().ProgramAction);
2456 // Turn on -Wspir-compat for SPIR target.
2457 llvm::Triple T(Res.getTargetOpts().Triple);
2458 auto Arch = T.getArch();
2459 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) {
2460 Res.getDiagnosticOpts().Warnings.push_back("spir-compat");
2465 std::string CompilerInvocation::getModuleHash() const {
2466 // Note: For QoI reasons, the things we use as a hash here should all be
2467 // dumped via the -module-info flag.
2468 using llvm::hash_code;
2469 using llvm::hash_value;
2470 using llvm::hash_combine;
2472 // Start the signature with the compiler version.
2473 // FIXME: We'd rather use something more cryptographically sound than
2474 // CityHash, but this will do for now.
2475 hash_code code = hash_value(getClangFullRepositoryVersion());
2477 // Extend the signature with the language options
2478 #define LANGOPT(Name, Bits, Default, Description) \
2479 code = hash_combine(code, LangOpts->Name);
2480 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
2481 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
2482 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
2483 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
2484 #include "clang/Basic/LangOptions.def"
2486 for (StringRef Feature : LangOpts->ModuleFeatures)
2487 code = hash_combine(code, Feature);
2489 // Extend the signature with the target options.
2490 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
2492 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i)
2493 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]);
2495 // Extend the signature with preprocessor options.
2496 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
2497 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
2498 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
2500 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator
2501 I = getPreprocessorOpts().Macros.begin(),
2502 IEnd = getPreprocessorOpts().Macros.end();
2504 // If we're supposed to ignore this macro for the purposes of modules,
2505 // don't put it into the hash.
2506 if (!hsOpts.ModulesIgnoreMacros.empty()) {
2507 // Check whether we're ignoring this macro.
2508 StringRef MacroDef = I->first;
2509 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first))
2513 code = hash_combine(code, I->first, I->second);
2516 // Extend the signature with the sysroot and other header search options.
2517 code = hash_combine(code, hsOpts.Sysroot,
2518 hsOpts.ModuleFormat,
2519 hsOpts.UseDebugInfo,
2520 hsOpts.UseBuiltinIncludes,
2521 hsOpts.UseStandardSystemIncludes,
2522 hsOpts.UseStandardCXXIncludes,
2524 hsOpts.ModulesValidateDiagnosticOptions);
2525 code = hash_combine(code, hsOpts.ResourceDir);
2527 // Extend the signature with the user build path.
2528 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
2530 // Extend the signature with the module file extensions.
2531 const FrontendOptions &frontendOpts = getFrontendOpts();
2532 for (const auto &ext : frontendOpts.ModuleFileExtensions) {
2533 code = ext->hashExtension(code);
2536 // Darwin-specific hack: if we have a sysroot, use the contents and
2537 // modification time of
2538 // $sysroot/System/Library/CoreServices/SystemVersion.plist
2539 // as part of the module hash.
2540 if (!hsOpts.Sysroot.empty()) {
2541 SmallString<128> systemVersionFile;
2542 systemVersionFile += hsOpts.Sysroot;
2543 llvm::sys::path::append(systemVersionFile, "System");
2544 llvm::sys::path::append(systemVersionFile, "Library");
2545 llvm::sys::path::append(systemVersionFile, "CoreServices");
2546 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist");
2548 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer =
2549 llvm::MemoryBuffer::getFile(systemVersionFile);
2551 code = hash_combine(code, buffer.get()->getBuffer());
2553 struct stat statBuf;
2554 if (stat(systemVersionFile.c_str(), &statBuf) == 0)
2555 code = hash_combine(code, statBuf.st_mtime);
2559 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
2564 template<typename IntTy>
2565 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
2567 DiagnosticsEngine *Diags) {
2568 IntTy Res = Default;
2569 if (Arg *A = Args.getLastArg(Id)) {
2570 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
2572 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)
2580 // Declared in clang/Frontend/Utils.h.
2581 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
2582 DiagnosticsEngine *Diags) {
2583 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags);
2586 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
2588 DiagnosticsEngine *Diags) {
2589 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags);
2592 void BuryPointer(const void *Ptr) {
2593 // This function may be called only a small fixed amount of times per each
2594 // invocation, otherwise we do actually have a leak which we want to report.
2595 // If this function is called more than kGraveYardMaxSize times, the pointers
2596 // will not be properly buried and a leak detector will report a leak, which
2597 // is what we want in such case.
2598 static const size_t kGraveYardMaxSize = 16;
2599 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize];
2600 static std::atomic<unsigned> GraveYardSize;
2601 unsigned Idx = GraveYardSize++;
2602 if (Idx >= kGraveYardMaxSize)
2604 GraveYard[Idx] = Ptr;
2607 IntrusiveRefCntPtr<vfs::FileSystem>
2608 createVFSFromCompilerInvocation(const CompilerInvocation &CI,
2609 DiagnosticsEngine &Diags) {
2610 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
2611 return vfs::getRealFileSystem();
2613 IntrusiveRefCntPtr<vfs::OverlayFileSystem>
2614 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem()));
2615 // earlier vfs files are on the bottom
2616 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
2617 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
2618 llvm::MemoryBuffer::getFile(File);
2620 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
2621 return IntrusiveRefCntPtr<vfs::FileSystem>();
2624 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML(
2625 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File);
2627 Diags.Report(diag::err_invalid_vfs_overlay) << File;
2628 return IntrusiveRefCntPtr<vfs::FileSystem>();
2630 Overlay->pushOverlay(FS);
2634 } // end namespace clang