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 : LangOpts(new LangOptions(*X.getLangOpts())),
64 TargetOpts(new TargetOptions(X.getTargetOpts())),
65 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
66 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
67 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {}
69 CompilerInvocationBase::~CompilerInvocationBase() {}
71 //===----------------------------------------------------------------------===//
72 // Deserialization (from args)
73 //===----------------------------------------------------------------------===//
75 using namespace clang::driver;
76 using namespace clang::driver::options;
77 using namespace llvm::opt;
81 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
82 DiagnosticsEngine &Diags) {
83 unsigned DefaultOpt = 0;
84 if (IK.getLanguage() == InputKind::OpenCL && !Args.hasArg(OPT_cl_opt_disable))
87 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
88 if (A->getOption().matches(options::OPT_O0))
91 if (A->getOption().matches(options::OPT_Ofast))
94 assert (A->getOption().matches(options::OPT_O));
96 StringRef S(A->getValue());
97 if (S == "s" || S == "z" || S.empty())
103 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags);
109 static unsigned getOptimizationLevelSize(ArgList &Args) {
110 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
111 if (A->getOption().matches(options::OPT_O)) {
112 switch (A->getValue()[0]) {
125 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
126 OptSpecifier GroupWithValue,
127 std::vector<std::string> &Diagnostics) {
128 for (Arg *A : Args.filtered(Group)) {
129 if (A->getOption().getKind() == Option::FlagClass) {
130 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
131 // its name (minus the "W" or "R" at the beginning) to the warning list.
132 Diagnostics.push_back(A->getOption().getName().drop_front(1));
133 } else if (A->getOption().matches(GroupWithValue)) {
134 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group.
135 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-"));
137 // Otherwise, add its value (for OPT_W_Joined and similar).
138 for (const char *Arg : A->getValues())
139 Diagnostics.emplace_back(Arg);
144 static void getAllNoBuiltinFuncValues(ArgList &Args,
145 std::vector<std::string> &Funcs) {
146 SmallVector<const char *, 8> Values;
147 for (const auto &Arg : Args) {
148 const Option &O = Arg->getOption();
149 if (O.matches(options::OPT_fno_builtin_)) {
150 const char *FuncName = Arg->getValue();
151 if (Builtin::Context::isBuiltinFunc(FuncName))
152 Values.push_back(FuncName);
155 Funcs.insert(Funcs.end(), Values.begin(), Values.end());
158 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
159 DiagnosticsEngine &Diags) {
160 using namespace options;
162 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
163 StringRef Name = A->getValue();
164 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
165 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
166 .Case(CMDFLAG, NAME##Model)
167 #include "clang/StaticAnalyzer/Core/Analyses.def"
169 if (Value == NumStores) {
170 Diags.Report(diag::err_drv_invalid_value)
171 << A->getAsString(Args) << Name;
174 Opts.AnalysisStoreOpt = Value;
178 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
179 StringRef Name = A->getValue();
180 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
181 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
182 .Case(CMDFLAG, NAME##Model)
183 #include "clang/StaticAnalyzer/Core/Analyses.def"
184 .Default(NumConstraints);
185 if (Value == NumConstraints) {
186 Diags.Report(diag::err_drv_invalid_value)
187 << A->getAsString(Args) << Name;
190 Opts.AnalysisConstraintsOpt = Value;
194 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
195 StringRef Name = A->getValue();
196 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
197 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
198 .Case(CMDFLAG, PD_##NAME)
199 #include "clang/StaticAnalyzer/Core/Analyses.def"
200 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
201 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
202 Diags.Report(diag::err_drv_invalid_value)
203 << A->getAsString(Args) << Name;
206 Opts.AnalysisDiagOpt = Value;
210 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
211 StringRef Name = A->getValue();
212 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
213 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
215 #include "clang/StaticAnalyzer/Core/Analyses.def"
216 .Default(NumPurgeModes);
217 if (Value == NumPurgeModes) {
218 Diags.Report(diag::err_drv_invalid_value)
219 << A->getAsString(Args) << Name;
222 Opts.AnalysisPurgeOpt = Value;
226 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
227 StringRef Name = A->getValue();
228 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
229 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
231 #include "clang/StaticAnalyzer/Core/Analyses.def"
232 .Default(NumInliningModes);
233 if (Value == NumInliningModes) {
234 Diags.Report(diag::err_drv_invalid_value)
235 << A->getAsString(Args) << Name;
238 Opts.InliningMode = Value;
242 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
243 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers);
244 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks);
246 Opts.visualizeExplodedGraphWithGraphViz =
247 Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
248 Opts.visualizeExplodedGraphWithUbiGraph =
249 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
250 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
251 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
252 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
253 Opts.AnalyzeNestedBlocks =
254 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
255 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume);
256 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
257 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
258 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
259 Opts.maxBlockVisitOnPath =
260 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags);
261 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
262 Opts.InlineMaxStackDepth =
263 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth,
264 Opts.InlineMaxStackDepth, Diags);
266 Opts.CheckersControlList.clear();
268 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) {
270 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
271 // We can have a list of comma separated checker names, e.g:
272 // '-analyzer-checker=cocoa,unix'
273 StringRef checkerList = A->getValue();
274 SmallVector<StringRef, 4> checkers;
275 checkerList.split(checkers, ",");
276 for (StringRef checker : checkers)
277 Opts.CheckersControlList.emplace_back(checker, enable);
280 // Go through the analyzer configuration options.
281 for (const Arg *A : Args.filtered(OPT_analyzer_config)) {
283 // We can have a list of comma separated config names, e.g:
284 // '-analyzer-config key1=val1,key2=val2'
285 StringRef configList = A->getValue();
286 SmallVector<StringRef, 4> configVals;
287 configList.split(configVals, ",");
288 for (unsigned i = 0, e = configVals.size(); i != e; ++i) {
290 std::tie(key, val) = configVals[i].split("=");
292 Diags.Report(SourceLocation(),
293 diag::err_analyzer_config_no_value) << configVals[i];
297 if (val.find('=') != StringRef::npos) {
298 Diags.Report(SourceLocation(),
299 diag::err_analyzer_config_multiple_values)
304 Opts.Config[key] = val;
311 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
312 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
313 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
317 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
318 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
319 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
322 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) {
323 if (Arg *A = Args.getLastArg(OPT_mcode_model)) {
324 StringRef Value = A->getValue();
325 if (Value == "small" || Value == "kernel" || Value == "medium" ||
328 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
333 static StringRef getRelocModel(ArgList &Args, DiagnosticsEngine &Diags) {
334 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) {
335 StringRef Value = A->getValue();
336 if (Value == "static" || Value == "pic" || Value == "ropi" ||
337 Value == "rwpi" || Value == "ropi-rwpi" || Value == "dynamic-no-pic")
339 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
344 /// \brief Create a new Regex instance out of the string value in \p RpassArg.
345 /// It returns a pointer to the newly generated Regex instance.
346 static std::shared_ptr<llvm::Regex>
347 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args,
349 StringRef Val = RpassArg->getValue();
350 std::string RegexError;
351 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val);
352 if (!Pattern->isValid(RegexError)) {
353 Diags.Report(diag::err_drv_optimization_remark_pattern)
354 << RegexError << RpassArg->getAsString(Args);
360 static bool parseDiagnosticLevelMask(StringRef FlagName,
361 const std::vector<std::string> &Levels,
362 DiagnosticsEngine *Diags,
363 DiagnosticLevelMask &M) {
365 for (const auto &Level : Levels) {
366 DiagnosticLevelMask const PM =
367 llvm::StringSwitch<DiagnosticLevelMask>(Level)
368 .Case("note", DiagnosticLevelMask::Note)
369 .Case("remark", DiagnosticLevelMask::Remark)
370 .Case("warning", DiagnosticLevelMask::Warning)
371 .Case("error", DiagnosticLevelMask::Error)
372 .Default(DiagnosticLevelMask::None);
373 if (PM == DiagnosticLevelMask::None) {
376 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level;
383 static void parseSanitizerKinds(StringRef FlagName,
384 const std::vector<std::string> &Sanitizers,
385 DiagnosticsEngine &Diags, SanitizerSet &S) {
386 for (const auto &Sanitizer : Sanitizers) {
387 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false);
389 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer;
395 // Set the profile kind for fprofile-instrument.
396 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args,
397 DiagnosticsEngine &Diags) {
398 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ);
401 StringRef S = A->getValue();
402 unsigned I = llvm::StringSwitch<unsigned>(S)
403 .Case("none", CodeGenOptions::ProfileNone)
404 .Case("clang", CodeGenOptions::ProfileClangInstr)
405 .Case("llvm", CodeGenOptions::ProfileIRInstr)
408 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args)
412 CodeGenOptions::ProfileInstrKind Instrumentor =
413 static_cast<CodeGenOptions::ProfileInstrKind>(I);
414 Opts.setProfileInstr(Instrumentor);
417 // Set the profile kind using fprofile-instrument-use-path.
418 static void setPGOUseInstrumentor(CodeGenOptions &Opts,
419 const Twine &ProfileName) {
420 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName);
421 // In error, return silently and let Clang PGOUse report the error message.
422 if (auto E = ReaderOrErr.takeError()) {
423 llvm::consumeError(std::move(E));
424 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
427 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader =
428 std::move(ReaderOrErr.get());
429 if (PGOReader->isIRLevelProfile())
430 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr);
432 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
435 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
436 DiagnosticsEngine &Diags,
437 const TargetOptions &TargetOpts) {
438 using namespace options;
440 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple);
442 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
443 // TODO: This could be done in Driver
444 unsigned MaxOptLevel = 3;
445 if (OptimizationLevel > MaxOptLevel) {
446 // If the optimization level is not supported, fall back on the default
448 Diags.Report(diag::warn_drv_optimization_value)
449 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
450 OptimizationLevel = MaxOptLevel;
452 Opts.OptimizationLevel = OptimizationLevel;
454 // At O0 we want to fully disable inlining outside of cases marked with
455 // 'alwaysinline' that are required for correctness.
456 Opts.setInlining((Opts.OptimizationLevel == 0)
457 ? CodeGenOptions::OnlyAlwaysInlining
458 : CodeGenOptions::NormalInlining);
459 // Explicit inlining flags can disable some or all inlining even at
460 // optimization levels above zero.
461 if (Arg *InlineArg = Args.getLastArg(
462 options::OPT_finline_functions, options::OPT_finline_hint_functions,
463 options::OPT_fno_inline_functions, options::OPT_fno_inline)) {
464 if (Opts.OptimizationLevel > 0) {
465 const Option &InlineOpt = InlineArg->getOption();
466 if (InlineOpt.matches(options::OPT_finline_functions))
467 Opts.setInlining(CodeGenOptions::NormalInlining);
468 else if (InlineOpt.matches(options::OPT_finline_hint_functions))
469 Opts.setInlining(CodeGenOptions::OnlyHintInlining);
471 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
475 Opts.ExperimentalNewPassManager = Args.hasFlag(
476 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager,
477 /* Default */ false);
479 if (Arg *A = Args.getLastArg(OPT_fveclib)) {
480 StringRef Name = A->getValue();
481 if (Name == "Accelerate")
482 Opts.setVecLib(CodeGenOptions::Accelerate);
483 else if (Name == "SVML")
484 Opts.setVecLib(CodeGenOptions::SVML);
485 else if (Name == "none")
486 Opts.setVecLib(CodeGenOptions::NoLibrary);
488 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
491 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) {
493 llvm::StringSwitch<unsigned>(A->getValue())
494 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly)
495 .Case("limited", codegenoptions::LimitedDebugInfo)
496 .Case("standalone", codegenoptions::FullDebugInfo)
499 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
502 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val));
504 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) {
505 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
506 .Case("gdb", unsigned(llvm::DebuggerKind::GDB))
507 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB))
508 .Case("sce", unsigned(llvm::DebuggerKind::SCE))
511 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
514 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val));
516 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags);
517 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
518 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview);
519 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro);
520 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables);
521 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std);
522 Opts.EnableSplitDwarf = Args.hasArg(OPT_enable_split_dwarf);
523 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
524 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining);
525 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs);
526 Opts.DebugExplicitImport = Triple.isPS4CPU();
528 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ))
529 Opts.DebugPrefixMap.insert(StringRef(Arg).split('='));
532 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists))
533 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
535 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes);
536 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers);
537 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
538 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
539 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
540 OPT_fuse_register_sized_bitfield_access);
541 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
542 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
543 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
544 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
545 Opts.NoCommon = Args.hasArg(OPT_fno_common);
546 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
547 Opts.OptimizeSize = getOptimizationLevelSize(Args);
548 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
549 Args.hasArg(OPT_ffreestanding));
550 if (Opts.SimplifyLibCalls)
551 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
553 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
554 (Opts.OptimizationLevel > 1));
555 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
557 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
558 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
559 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
560 Opts.DebugInfoForProfiling = Args.hasFlag(
561 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false);
563 setPGOInstrumentor(Opts, Args, Diags);
564 Opts.InstrProfileOutput =
565 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ);
566 Opts.ProfileInstrumentUsePath =
567 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ);
568 if (!Opts.ProfileInstrumentUsePath.empty())
569 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath);
571 Opts.CoverageMapping =
572 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false);
573 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
574 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
575 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments);
576 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
577 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
578 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
579 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
580 Opts.CodeModel = getCodeModel(Args, Diags);
581 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
583 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg));
584 Opts.DisableFree = Args.hasArg(OPT_disable_free);
585 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names);
586 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
587 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
588 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) ||
589 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
590 Args.hasArg(OPT_cl_fast_relaxed_math);
591 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
592 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
593 Args.hasArg(OPT_cl_finite_math_only) ||
594 Args.hasArg(OPT_cl_fast_relaxed_math));
595 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
596 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
597 Args.hasArg(OPT_cl_finite_math_only) ||
598 Args.hasArg(OPT_cl_fast_relaxed_math));
599 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) ||
600 Args.hasArg(OPT_cl_no_signed_zeros) ||
601 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
602 Args.hasArg(OPT_cl_fast_relaxed_math));
603 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero);
604 Opts.CorrectlyRoundedDivSqrt =
605 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt);
606 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
607 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math);
608 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
609 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
610 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
611 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
612 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
613 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
614 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
615 Opts.IncrementalLinkerCompatible =
616 Args.hasArg(OPT_mincremental_linker_compatible);
617 Opts.PIECopyRelocations =
618 Args.hasArg(OPT_mpie_copy_relocations);
619 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
620 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
621 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
622 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
623 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
624 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return);
625 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers);
626 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
627 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
628 Args.hasArg(OPT_cl_fast_relaxed_math);
629 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
630 Opts.RelocationModel = getRelocModel(Args, Diags);
631 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
632 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
633 Diags.Report(diag::err_drv_invalid_value)
634 << Args.getLastArg(OPT_mthread_model)->getAsString(Args)
636 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
637 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
639 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
640 OPT_fno_function_sections, false);
641 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
642 OPT_fno_data_sections, false);
643 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
644 OPT_fno_unique_section_names, true);
646 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
648 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables);
650 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ);
651 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ);
652 Opts.EmitSummaryIndex = A && A->containsValue("thin");
653 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false);
654 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) {
655 if (IK.getLanguage() != InputKind::LLVM_IR)
656 Diags.Report(diag::err_drv_argument_only_allowed_with)
657 << A->getAsString(Args) << "-x ir";
658 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ);
660 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ);
662 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile);
664 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive);
665 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
666 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
668 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
669 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
671 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
672 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
673 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
674 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
675 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file);
676 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file);
677 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
678 Opts.CoverageNoFunctionNamesInData =
679 Args.hasArg(OPT_coverage_no_function_names_in_data);
680 Opts.CoverageExitBlockBeforeBody =
681 Args.hasArg(OPT_coverage_exit_block_before_body);
682 if (Args.hasArg(OPT_coverage_version_EQ)) {
683 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
684 if (CoverageVersion.size() != 4) {
685 Diags.Report(diag::err_drv_invalid_value)
686 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
689 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
693 // Handle -fembed-bitcode option.
694 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) {
695 StringRef Name = A->getValue();
696 unsigned Model = llvm::StringSwitch<unsigned>(Name)
697 .Case("off", CodeGenOptions::Embed_Off)
698 .Case("all", CodeGenOptions::Embed_All)
699 .Case("bitcode", CodeGenOptions::Embed_Bitcode)
700 .Case("marker", CodeGenOptions::Embed_Marker)
703 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
706 Opts.setEmbedBitcode(
707 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model));
709 // FIXME: For backend options that are not yet recorded as function
710 // attributes in the IR, keep track of them so we can embed them in a
711 // separate data section and use them when building the bitcode.
712 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) {
713 for (const auto &A : Args) {
714 // Do not encode output and input.
715 if (A->getOption().getID() == options::OPT_o ||
716 A->getOption().getID() == options::OPT_INPUT ||
717 A->getOption().getID() == options::OPT_x ||
718 A->getOption().getID() == options::OPT_fembed_bitcode ||
719 (A->getOption().getGroup().isValid() &&
720 A->getOption().getGroup().getID() == options::OPT_W_Group))
723 A->render(Args, ASL);
724 for (const auto &arg : ASL) {
725 StringRef ArgStr(arg);
726 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end());
727 // using \00 to seperate each commandline options.
728 Opts.CmdArgs.push_back('\0');
733 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type);
734 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
735 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument);
736 Opts.XRayInstructionThreshold =
737 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags);
738 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
739 Opts.CallFEntry = Args.hasArg(OPT_mfentry);
740 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
741 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections);
742 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations);
743 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
744 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) {
745 CodeGenOptions::BitcodeFileToLink F;
746 F.Filename = A->getValue();
747 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) {
748 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded;
749 // When linking CUDA bitcode, propagate function attributes so that
750 // e.g. libdevice gets fast-math attrs if we're building with fast-math.
751 F.PropagateAttrs = true;
752 F.Internalize = true;
754 Opts.LinkBitcodeFiles.push_back(F);
756 Opts.SanitizeCoverageType =
757 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags);
758 Opts.SanitizeCoverageIndirectCalls =
759 Args.hasArg(OPT_fsanitize_coverage_indirect_calls);
760 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb);
761 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp);
762 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div);
763 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep);
764 Opts.SanitizeCoverage8bitCounters =
765 Args.hasArg(OPT_fsanitize_coverage_8bit_counters);
766 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc);
767 Opts.SanitizeCoverageTracePCGuard =
768 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard);
769 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune);
770 Opts.SanitizeMemoryTrackOrigins =
771 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
772 Opts.SanitizeMemoryUseAfterDtor =
773 Args.hasArg(OPT_fsanitize_memory_use_after_dtor);
774 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso);
775 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats);
776 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope,
777 OPT_fno_sanitize_address_use_after_scope)) {
778 Opts.SanitizeAddressUseAfterScope =
779 A->getOption().getID() == OPT_fsanitize_address_use_after_scope;
781 Opts.SanitizeAddressGlobalsDeadStripping =
782 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping);
784 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
785 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
786 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
787 StringRef Val = A->getValue();
788 unsigned StackAlignment = Opts.StackAlignment;
789 Val.getAsInteger(10, StackAlignment);
790 Opts.StackAlignment = StackAlignment;
793 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) {
794 StringRef Val = A->getValue();
795 unsigned StackProbeSize = Opts.StackProbeSize;
796 Val.getAsInteger(0, StackProbeSize);
797 Opts.StackProbeSize = StackProbeSize;
800 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
801 StringRef Name = A->getValue();
802 unsigned Method = llvm::StringSwitch<unsigned>(Name)
803 .Case("legacy", CodeGenOptions::Legacy)
804 .Case("non-legacy", CodeGenOptions::NonLegacy)
805 .Case("mixed", CodeGenOptions::Mixed)
808 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
811 Opts.setObjCDispatchMethod(
812 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
817 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false);
819 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
820 StringRef Name = A->getValue();
821 unsigned Model = llvm::StringSwitch<unsigned>(Name)
822 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
823 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
824 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
825 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
828 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
831 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
835 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) {
836 StringRef Val = A->getValue();
838 Opts.FPDenormalMode = "ieee";
839 else if (Val == "preserve-sign")
840 Opts.FPDenormalMode = "preserve-sign";
841 else if (Val == "positive-zero")
842 Opts.FPDenormalMode = "positive-zero";
844 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
847 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
848 if (A->getOption().matches(OPT_fpcc_struct_return)) {
849 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
851 assert(A->getOption().matches(OPT_freg_struct_return));
852 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
856 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
857 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option);
858 bool NeedLocTracking = false;
860 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file);
861 if (!Opts.OptRecordFile.empty())
862 NeedLocTracking = true;
864 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
865 Opts.OptimizationRemarkPattern =
866 GenerateOptimizationRemarkRegex(Diags, Args, A);
867 NeedLocTracking = true;
870 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
871 Opts.OptimizationRemarkMissedPattern =
872 GenerateOptimizationRemarkRegex(Diags, Args, A);
873 NeedLocTracking = true;
876 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
877 Opts.OptimizationRemarkAnalysisPattern =
878 GenerateOptimizationRemarkRegex(Diags, Args, A);
879 NeedLocTracking = true;
882 Opts.DiagnosticsWithHotness =
883 Args.hasArg(options::OPT_fdiagnostics_show_hotness);
884 if (Opts.DiagnosticsWithHotness &&
885 Opts.getProfileUse() == CodeGenOptions::ProfileNone)
886 Diags.Report(diag::warn_drv_fdiagnostics_show_hotness_requires_pgo);
888 // If the user requested to use a sample profile for PGO, then the
889 // backend will need to track source location information so the profile
890 // can be incorporated into the IR.
891 if (!Opts.SampleProfileFile.empty())
892 NeedLocTracking = true;
894 // If the user requested a flag that requires source locations available in
895 // the backend, make sure that the backend tracks source location information.
896 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo)
897 Opts.setDebugInfo(codegenoptions::LocTrackingOnly);
899 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file);
901 // Parse -fsanitize-recover= arguments.
902 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
903 parseSanitizerKinds("-fsanitize-recover=",
904 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
905 Opts.SanitizeRecover);
906 parseSanitizerKinds("-fsanitize-trap=",
907 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags,
910 Opts.CudaGpuBinaryFileNames =
911 Args.getAllArgValues(OPT_fcuda_include_gpubinary);
913 Opts.Backchain = Args.hasArg(OPT_mbackchain);
915 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue(
916 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags);
921 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
923 using namespace options;
924 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
925 Opts.Targets = Args.getAllArgValues(OPT_MT);
926 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
927 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
928 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
929 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
930 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
931 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
932 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes);
933 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
934 Opts.ModuleDependencyOutputDir =
935 Args.getLastArgValue(OPT_module_dependency_dir);
936 if (Args.hasArg(OPT_MV))
937 Opts.OutputFormat = DependencyOutputFormat::NMake;
938 // Add sanitizer blacklists as extra dependencies.
939 // They won't be discovered by the regular preprocessor, so
940 // we let make / ninja to know about this implicit dependency.
941 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry);
942 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
943 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(),
947 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) {
948 // Color diagnostics default to auto ("on" if terminal supports) in the driver
949 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color.
950 // Support both clang's -f[no-]color-diagnostics and gcc's
951 // -f[no-]diagnostics-colors[=never|always|auto].
956 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off;
957 for (Arg *A : Args) {
958 const Option &O = A->getOption();
959 if (O.matches(options::OPT_fcolor_diagnostics) ||
960 O.matches(options::OPT_fdiagnostics_color)) {
961 ShowColors = Colors_On;
962 } else if (O.matches(options::OPT_fno_color_diagnostics) ||
963 O.matches(options::OPT_fno_diagnostics_color)) {
964 ShowColors = Colors_Off;
965 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) {
966 StringRef Value(A->getValue());
967 if (Value == "always")
968 ShowColors = Colors_On;
969 else if (Value == "never")
970 ShowColors = Colors_Off;
971 else if (Value == "auto")
972 ShowColors = Colors_Auto;
975 return ShowColors == Colors_On ||
976 (ShowColors == Colors_Auto &&
977 llvm::sys::Process::StandardErrHasColors());
980 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
981 DiagnosticsEngine *Diags,
982 bool DefaultDiagColor, bool DefaultShowOpt) {
983 using namespace options;
986 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
988 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
989 Opts.DiagnosticSerializationFile = A->getValue();
990 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
991 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
992 Opts.Pedantic = Args.hasArg(OPT_pedantic);
993 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
994 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
995 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor);
996 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
999 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
1000 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
1001 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths);
1002 Opts.ShowOptionNames =
1003 Args.hasFlag(OPT_fdiagnostics_show_option,
1004 OPT_fno_diagnostics_show_option, DefaultShowOpt);
1006 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
1008 // Default behavior is to not to show note include stacks.
1009 Opts.ShowNoteIncludeStack = false;
1010 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
1011 OPT_fno_diagnostics_show_note_include_stack))
1012 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
1013 Opts.ShowNoteIncludeStack = true;
1015 StringRef ShowOverloads =
1016 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
1017 if (ShowOverloads == "best")
1018 Opts.setShowOverloads(Ovl_Best);
1019 else if (ShowOverloads == "all")
1020 Opts.setShowOverloads(Ovl_All);
1024 Diags->Report(diag::err_drv_invalid_value)
1025 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
1029 StringRef ShowCategory =
1030 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
1031 if (ShowCategory == "none")
1032 Opts.ShowCategories = 0;
1033 else if (ShowCategory == "id")
1034 Opts.ShowCategories = 1;
1035 else if (ShowCategory == "name")
1036 Opts.ShowCategories = 2;
1040 Diags->Report(diag::err_drv_invalid_value)
1041 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
1046 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
1047 if (Format == "clang")
1048 Opts.setFormat(DiagnosticOptions::Clang);
1049 else if (Format == "msvc")
1050 Opts.setFormat(DiagnosticOptions::MSVC);
1051 else if (Format == "msvc-fallback") {
1052 Opts.setFormat(DiagnosticOptions::MSVC);
1053 Opts.CLFallbackMode = true;
1054 } else if (Format == "vi")
1055 Opts.setFormat(DiagnosticOptions::Vi);
1059 Diags->Report(diag::err_drv_invalid_value)
1060 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
1064 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
1065 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
1066 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
1067 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
1068 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
1069 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=",
1070 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ),
1072 if (Args.hasArg(OPT_verify_ignore_unexpected))
1073 DiagMask = DiagnosticLevelMask::All;
1074 Opts.setVerifyIgnoreUnexpected(DiagMask);
1075 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
1076 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
1077 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
1078 Opts.MacroBacktraceLimit =
1079 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
1080 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
1081 Opts.TemplateBacktraceLimit = getLastArgIntValue(
1082 Args, OPT_ftemplate_backtrace_limit,
1083 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
1084 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
1085 Args, OPT_fconstexpr_backtrace_limit,
1086 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
1087 Opts.SpellCheckingLimit = getLastArgIntValue(
1088 Args, OPT_fspell_checking_limit,
1089 DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
1090 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
1091 DiagnosticOptions::DefaultTabStop, Diags);
1092 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
1093 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
1095 Diags->Report(diag::warn_ignoring_ftabstop_value)
1096 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
1098 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
1099 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
1100 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
1105 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
1106 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
1109 /// Parse the argument to the -ftest-module-file-extension
1110 /// command-line argument.
1112 /// \returns true on error, false on success.
1113 static bool parseTestModuleFileExtensionArg(StringRef Arg,
1114 std::string &BlockName,
1115 unsigned &MajorVersion,
1116 unsigned &MinorVersion,
1118 std::string &UserInfo) {
1119 SmallVector<StringRef, 5> Args;
1120 Arg.split(Args, ':', 5);
1121 if (Args.size() < 5)
1124 BlockName = Args[0];
1125 if (Args[1].getAsInteger(10, MajorVersion)) return true;
1126 if (Args[2].getAsInteger(10, MinorVersion)) return true;
1127 if (Args[3].getAsInteger(2, Hashed)) return true;
1128 if (Args.size() > 4)
1133 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
1134 DiagnosticsEngine &Diags,
1135 bool &IsHeaderFile) {
1136 using namespace options;
1137 Opts.ProgramAction = frontend::ParseSyntaxOnly;
1138 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
1139 switch (A->getOption().getID()) {
1141 llvm_unreachable("Invalid option in group!");
1143 Opts.ProgramAction = frontend::ASTDeclList; break;
1145 case OPT_ast_dump_all:
1146 case OPT_ast_dump_lookups:
1147 Opts.ProgramAction = frontend::ASTDump; break;
1149 Opts.ProgramAction = frontend::ASTPrint; break;
1151 Opts.ProgramAction = frontend::ASTView; break;
1152 case OPT_dump_raw_tokens:
1153 Opts.ProgramAction = frontend::DumpRawTokens; break;
1154 case OPT_dump_tokens:
1155 Opts.ProgramAction = frontend::DumpTokens; break;
1157 Opts.ProgramAction = frontend::EmitAssembly; break;
1158 case OPT_emit_llvm_bc:
1159 Opts.ProgramAction = frontend::EmitBC; break;
1161 Opts.ProgramAction = frontend::EmitHTML; break;
1163 Opts.ProgramAction = frontend::EmitLLVM; break;
1164 case OPT_emit_llvm_only:
1165 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
1166 case OPT_emit_codegen_only:
1167 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
1169 Opts.ProgramAction = frontend::EmitObj; break;
1171 Opts.FixItSuffix = A->getValue();
1174 Opts.ProgramAction = frontend::FixIt; break;
1175 case OPT_emit_module:
1176 Opts.ProgramAction = frontend::GenerateModule; break;
1177 case OPT_emit_module_interface:
1178 Opts.ProgramAction = frontend::GenerateModuleInterface; break;
1180 Opts.ProgramAction = frontend::GeneratePCH; break;
1182 Opts.ProgramAction = frontend::GeneratePTH; break;
1184 Opts.ProgramAction = frontend::InitOnly; break;
1185 case OPT_fsyntax_only:
1186 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
1187 case OPT_module_file_info:
1188 Opts.ProgramAction = frontend::ModuleFileInfo; break;
1189 case OPT_verify_pch:
1190 Opts.ProgramAction = frontend::VerifyPCH; break;
1191 case OPT_print_decl_contexts:
1192 Opts.ProgramAction = frontend::PrintDeclContext; break;
1193 case OPT_print_preamble:
1194 Opts.ProgramAction = frontend::PrintPreamble; break;
1196 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
1197 case OPT_rewrite_macros:
1198 Opts.ProgramAction = frontend::RewriteMacros; break;
1199 case OPT_rewrite_objc:
1200 Opts.ProgramAction = frontend::RewriteObjC; break;
1201 case OPT_rewrite_test:
1202 Opts.ProgramAction = frontend::RewriteTest; break;
1204 Opts.ProgramAction = frontend::RunAnalysis; break;
1206 Opts.ProgramAction = frontend::MigrateSource; break;
1208 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
1212 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
1213 Opts.Plugins.emplace_back(A->getValue(0));
1214 Opts.ProgramAction = frontend::PluginAction;
1215 Opts.ActionName = A->getValue();
1217 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
1218 for (const Arg *AA : Args.filtered(OPT_plugin_arg))
1219 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1));
1221 for (const std::string &Arg :
1222 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) {
1223 std::string BlockName;
1224 unsigned MajorVersion;
1225 unsigned MinorVersion;
1227 std::string UserInfo;
1228 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
1229 MinorVersion, Hashed, UserInfo)) {
1230 Diags.Report(diag::err_test_module_file_extension_format) << Arg;
1235 // Add the testing module file extension.
1236 Opts.ModuleFileExtensions.push_back(
1237 std::make_shared<TestModuleFileExtension>(
1238 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo));
1241 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
1242 Opts.CodeCompletionAt =
1243 ParsedSourceLocation::FromString(A->getValue());
1244 if (Opts.CodeCompletionAt.FileName.empty())
1245 Diags.Report(diag::err_drv_invalid_value)
1246 << A->getAsString(Args) << A->getValue();
1248 Opts.DisableFree = Args.hasArg(OPT_disable_free);
1250 Opts.OutputFile = Args.getLastArgValue(OPT_o);
1251 Opts.Plugins = Args.getAllArgValues(OPT_load);
1252 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1253 Opts.ShowHelp = Args.hasArg(OPT_help);
1254 Opts.ShowStats = Args.hasArg(OPT_print_stats);
1255 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1256 Opts.ShowVersion = Args.hasArg(OPT_version);
1257 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1258 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1259 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
1260 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
1261 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
1262 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
1263 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump);
1264 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all);
1265 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
1266 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
1267 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
1268 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
1269 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file);
1270 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
1271 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ);
1272 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files);
1273 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp);
1275 Opts.CodeCompleteOpts.IncludeMacros
1276 = Args.hasArg(OPT_code_completion_macros);
1277 Opts.CodeCompleteOpts.IncludeCodePatterns
1278 = Args.hasArg(OPT_code_completion_patterns);
1279 Opts.CodeCompleteOpts.IncludeGlobals
1280 = !Args.hasArg(OPT_no_code_completion_globals);
1281 Opts.CodeCompleteOpts.IncludeBriefComments
1282 = Args.hasArg(OPT_code_completion_brief_comments);
1284 Opts.OverrideRecordLayoutsFile
1285 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
1287 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple));
1288 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ);
1289 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file);
1291 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
1293 OPT_arcmt_migrate)) {
1294 switch (A->getOption().getID()) {
1296 llvm_unreachable("missed a case");
1297 case OPT_arcmt_check:
1298 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
1300 case OPT_arcmt_modify:
1301 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
1303 case OPT_arcmt_migrate:
1304 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
1308 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
1309 Opts.ARCMTMigrateReportOut
1310 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
1311 Opts.ARCMTMigrateEmitARCErrors
1312 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
1314 if (Args.hasArg(OPT_objcmt_migrate_literals))
1315 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
1316 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
1317 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
1318 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
1319 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
1320 if (Args.hasArg(OPT_objcmt_migrate_property))
1321 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
1322 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
1323 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
1324 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
1325 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
1326 if (Args.hasArg(OPT_objcmt_migrate_annotation))
1327 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
1328 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
1329 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
1330 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
1331 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
1332 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
1333 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
1334 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
1335 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
1336 if (Args.hasArg(OPT_objcmt_atomic_property))
1337 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
1338 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
1339 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
1340 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
1341 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
1342 if (Args.hasArg(OPT_objcmt_migrate_all))
1343 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
1345 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
1347 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
1348 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
1349 Diags.Report(diag::err_drv_argument_not_allowed_with)
1350 << "ARC migration" << "ObjC migration";
1353 InputKind DashX(InputKind::Unknown);
1354 if (const Arg *A = Args.getLastArg(OPT_x)) {
1355 StringRef XValue = A->getValue();
1357 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'.
1358 // FIXME: Supporting '<lang>-header-cpp-output' would be useful.
1359 bool Preprocessed = XValue.consume_back("-cpp-output");
1360 bool ModuleMap = XValue.consume_back("-module-map");
1362 !Preprocessed && !ModuleMap && XValue.consume_back("-header");
1364 // Principal languages.
1365 DashX = llvm::StringSwitch<InputKind>(XValue)
1366 .Case("c", InputKind::C)
1367 .Case("cl", InputKind::OpenCL)
1368 .Case("cuda", InputKind::CUDA)
1369 .Case("c++", InputKind::CXX)
1370 .Case("objective-c", InputKind::ObjC)
1371 .Case("objective-c++", InputKind::ObjCXX)
1372 .Case("renderscript", InputKind::RenderScript)
1373 .Default(InputKind::Unknown);
1375 // "objc[++]-cpp-output" is an acceptable synonym for
1376 // "objective-c[++]-cpp-output".
1377 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap)
1378 DashX = llvm::StringSwitch<InputKind>(XValue)
1379 .Case("objc", InputKind::ObjC)
1380 .Case("objc++", InputKind::ObjCXX)
1381 .Default(InputKind::Unknown);
1383 // Some special cases cannot be combined with suffixes.
1384 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile)
1385 DashX = llvm::StringSwitch<InputKind>(XValue)
1386 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed())
1387 .Case("assembler-with-cpp", InputKind::Asm)
1388 .Cases("ast", "pcm",
1389 InputKind(InputKind::Unknown, InputKind::Precompiled))
1390 .Case("ir", InputKind::LLVM_IR)
1391 .Default(InputKind::Unknown);
1393 if (DashX.isUnknown())
1394 Diags.Report(diag::err_drv_invalid_value)
1395 << A->getAsString(Args) << A->getValue();
1398 DashX = DashX.getPreprocessed();
1400 DashX = DashX.withFormat(InputKind::ModuleMap);
1403 // '-' is the default input if none is given.
1404 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1405 Opts.Inputs.clear();
1407 Inputs.push_back("-");
1408 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1409 InputKind IK = DashX;
1410 if (IK.isUnknown()) {
1411 IK = FrontendOptions::getInputKindForExtension(
1412 StringRef(Inputs[i]).rsplit('.').second);
1413 // FIXME: Warn on this?
1416 // FIXME: Remove this hack.
1421 // The -emit-module action implicitly takes a module map.
1422 if (Opts.ProgramAction == frontend::GenerateModule &&
1423 IK.getFormat() == InputKind::Source)
1424 IK = IK.withFormat(InputKind::ModuleMap);
1426 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK);
1432 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1434 std::string ClangExecutable =
1435 llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
1436 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable);
1438 // Compute the path to the resource directory.
1439 StringRef ClangResourceDir(CLANG_RESOURCE_DIR);
1440 SmallString<128> P(Dir);
1441 if (ClangResourceDir != "")
1442 llvm::sys::path::append(P, ClangResourceDir);
1444 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX,
1445 "clang", CLANG_VERSION_STRING);
1450 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args,
1451 const std::string &WorkingDir) {
1452 using namespace options;
1453 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1454 Opts.Verbose = Args.hasArg(OPT_v);
1455 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1456 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
1457 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1458 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
1459 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
1460 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1462 // Canonicalize -fmodules-cache-path before storing it.
1463 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path));
1464 if (!(P.empty() || llvm::sys::path::is_absolute(P))) {
1465 if (WorkingDir.empty())
1466 llvm::sys::fs::make_absolute(P);
1468 llvm::sys::fs::make_absolute(WorkingDir, P);
1470 llvm::sys::path::remove_dots(P);
1471 Opts.ModuleCachePath = P.str();
1473 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
1474 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path))
1475 Opts.AddPrebuiltModulePath(A->getValue());
1476 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
1477 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content);
1478 Opts.ModulesValidateDiagnosticOptions =
1479 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation);
1480 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps);
1481 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd);
1482 Opts.ModuleCachePruneInterval =
1483 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
1484 Opts.ModuleCachePruneAfter =
1485 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
1486 Opts.ModulesValidateOncePerBuildSession =
1487 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
1488 Opts.BuildSessionTimestamp =
1489 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
1490 Opts.ModulesValidateSystemHeaders =
1491 Args.hasArg(OPT_fmodules_validate_system_headers);
1492 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ))
1493 Opts.ModuleFormat = A->getValue();
1495 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) {
1496 StringRef MacroDef = A->getValue();
1497 Opts.ModulesIgnoreMacros.insert(
1498 llvm::CachedHashString(MacroDef.split('=').first));
1501 // Add -I..., -F..., and -index-header-map options in order.
1502 bool IsIndexHeaderMap = false;
1503 bool IsSysrootSpecified =
1504 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot);
1505 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) {
1506 if (A->getOption().matches(OPT_index_header_map)) {
1507 // -index-header-map applies to the next -I or -F.
1508 IsIndexHeaderMap = true;
1512 frontend::IncludeDirGroup Group =
1513 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled;
1515 bool IsFramework = A->getOption().matches(OPT_F);
1516 std::string Path = A->getValue();
1518 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') {
1519 SmallString<32> Buffer;
1520 llvm::sys::path::append(Buffer, Opts.Sysroot,
1521 llvm::StringRef(A->getValue()).substr(1));
1522 Path = Buffer.str();
1525 Opts.AddPath(Path, Group, IsFramework,
1526 /*IgnoreSysroot*/ true);
1527 IsIndexHeaderMap = false;
1530 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
1531 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
1533 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) {
1534 if (A->getOption().matches(OPT_iprefix))
1535 Prefix = A->getValue();
1536 else if (A->getOption().matches(OPT_iwithprefix))
1537 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true);
1539 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true);
1542 for (const Arg *A : Args.filtered(OPT_idirafter))
1543 Opts.AddPath(A->getValue(), frontend::After, false, true);
1544 for (const Arg *A : Args.filtered(OPT_iquote))
1545 Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
1546 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
1547 Opts.AddPath(A->getValue(), frontend::System, false,
1548 !A->getOption().matches(OPT_iwithsysroot));
1549 for (const Arg *A : Args.filtered(OPT_iframework))
1550 Opts.AddPath(A->getValue(), frontend::System, true, true);
1551 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot))
1552 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true,
1553 /*IgnoreSysRoot=*/false);
1555 // Add the paths for the various language specific isystem flags.
1556 for (const Arg *A : Args.filtered(OPT_c_isystem))
1557 Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
1558 for (const Arg *A : Args.filtered(OPT_cxx_isystem))
1559 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
1560 for (const Arg *A : Args.filtered(OPT_objc_isystem))
1561 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
1562 for (const Arg *A : Args.filtered(OPT_objcxx_isystem))
1563 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
1565 // Add the internal paths from a driver that detects standard include paths.
1567 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) {
1568 frontend::IncludeDirGroup Group = frontend::System;
1569 if (A->getOption().matches(OPT_internal_externc_isystem))
1570 Group = frontend::ExternCSystem;
1571 Opts.AddPath(A->getValue(), Group, false, true);
1574 // Add the path prefixes which are implicitly treated as being system headers.
1576 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix))
1577 Opts.AddSystemHeaderPrefix(
1578 A->getValue(), A->getOption().matches(OPT_system_header_prefix));
1580 for (const Arg *A : Args.filtered(OPT_ivfsoverlay))
1581 Opts.AddVFSOverlayFile(A->getValue());
1584 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
1585 const llvm::Triple &T,
1586 PreprocessorOptions &PPOpts,
1587 LangStandard::Kind LangStd) {
1588 // Set some properties which depend solely on the input kind; it would be nice
1589 // to move these to the language standard, and have the driver resolve the
1590 // input kind + language standard.
1592 // FIXME: Perhaps a better model would be for a single source file to have
1593 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std)
1594 // simultaneously active?
1595 if (IK.getLanguage() == InputKind::Asm) {
1596 Opts.AsmPreprocessor = 1;
1597 } else if (IK.isObjectiveC()) {
1598 Opts.ObjC1 = Opts.ObjC2 = 1;
1601 if (LangStd == LangStandard::lang_unspecified) {
1602 // Based on the base language, pick one.
1603 switch (IK.getLanguage()) {
1604 case InputKind::Unknown:
1605 case InputKind::LLVM_IR:
1606 llvm_unreachable("Invalid input kind!");
1607 case InputKind::OpenCL:
1608 LangStd = LangStandard::lang_opencl10;
1610 case InputKind::CUDA:
1611 LangStd = LangStandard::lang_cuda;
1613 case InputKind::Asm:
1615 // The PS4 uses C99 as the default C standard.
1617 LangStd = LangStandard::lang_gnu99;
1619 LangStd = LangStandard::lang_gnu11;
1621 case InputKind::ObjC:
1622 LangStd = LangStandard::lang_gnu11;
1624 case InputKind::CXX:
1625 case InputKind::ObjCXX:
1626 // The PS4 uses C++11 as the default C++ standard.
1628 LangStd = LangStandard::lang_gnucxx11;
1630 LangStd = LangStandard::lang_gnucxx98;
1632 case InputKind::RenderScript:
1633 LangStd = LangStandard::lang_c99;
1638 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1639 Opts.LineComment = Std.hasLineComments();
1640 Opts.C99 = Std.isC99();
1641 Opts.C11 = Std.isC11();
1642 Opts.CPlusPlus = Std.isCPlusPlus();
1643 Opts.CPlusPlus11 = Std.isCPlusPlus11();
1644 Opts.CPlusPlus14 = Std.isCPlusPlus14();
1645 Opts.CPlusPlus1z = Std.isCPlusPlus1z();
1646 Opts.Digraphs = Std.hasDigraphs();
1647 Opts.GNUMode = Std.isGNUMode();
1648 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus;
1649 Opts.HexFloats = Std.hasHexFloats();
1650 Opts.ImplicitInt = Std.hasImplicitInt();
1652 // Set OpenCL Version.
1653 Opts.OpenCL = Std.isOpenCL();
1654 if (LangStd == LangStandard::lang_opencl10)
1655 Opts.OpenCLVersion = 100;
1656 else if (LangStd == LangStandard::lang_opencl11)
1657 Opts.OpenCLVersion = 110;
1658 else if (LangStd == LangStandard::lang_opencl12)
1659 Opts.OpenCLVersion = 120;
1660 else if (LangStd == LangStandard::lang_opencl20)
1661 Opts.OpenCLVersion = 200;
1663 // OpenCL has some additional defaults.
1667 Opts.LaxVectorConversions = 0;
1668 Opts.setDefaultFPContractMode(LangOptions::FPC_On);
1669 Opts.NativeHalfType = 1;
1670 Opts.NativeHalfArgsAndReturns = 1;
1671 // Include default header file for OpenCL.
1672 if (Opts.IncludeDefaultHeader) {
1673 PPOpts.Includes.push_back("opencl-c.h");
1677 Opts.CUDA = IK.getLanguage() == InputKind::CUDA;
1679 // Set default FP_CONTRACT to FAST.
1680 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast);
1682 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript;
1683 if (Opts.RenderScript) {
1684 Opts.NativeHalfType = 1;
1685 Opts.NativeHalfArgsAndReturns = 1;
1688 // OpenCL and C++ both have bool, true, false keywords.
1689 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1691 // OpenCL has half keyword
1692 Opts.Half = Opts.OpenCL;
1694 // C++ has wchar_t keyword.
1695 Opts.WChar = Opts.CPlusPlus;
1697 Opts.GNUKeywords = Opts.GNUMode;
1698 Opts.CXXOperatorNames = Opts.CPlusPlus;
1700 Opts.AlignedAllocation = Opts.CPlusPlus1z;
1702 Opts.DollarIdents = !Opts.AsmPreprocessor;
1705 /// Attempt to parse a visibility value out of the given argument.
1706 static Visibility parseVisibility(Arg *arg, ArgList &args,
1707 DiagnosticsEngine &diags) {
1708 StringRef value = arg->getValue();
1709 if (value == "default") {
1710 return DefaultVisibility;
1711 } else if (value == "hidden" || value == "internal") {
1712 return HiddenVisibility;
1713 } else if (value == "protected") {
1714 // FIXME: diagnose if target does not support protected visibility
1715 return ProtectedVisibility;
1718 diags.Report(diag::err_drv_invalid_value)
1719 << arg->getAsString(args) << value;
1720 return DefaultVisibility;
1723 /// Check if input file kind and language standard are compatible.
1724 static bool IsInputCompatibleWithStandard(InputKind IK,
1725 const LangStandard &S) {
1726 switch (IK.getLanguage()) {
1727 case InputKind::Unknown:
1728 case InputKind::LLVM_IR:
1729 llvm_unreachable("should not parse language flags for this input");
1732 case InputKind::ObjC:
1733 case InputKind::RenderScript:
1734 return S.getLanguage() == InputKind::C;
1736 case InputKind::OpenCL:
1737 return S.getLanguage() == InputKind::OpenCL;
1739 case InputKind::CXX:
1740 case InputKind::ObjCXX:
1741 return S.getLanguage() == InputKind::CXX;
1743 case InputKind::CUDA:
1744 // FIXME: What -std= values should be permitted for CUDA compilations?
1745 return S.getLanguage() == InputKind::CUDA ||
1746 S.getLanguage() == InputKind::CXX;
1748 case InputKind::Asm:
1749 // Accept (and ignore) all -std= values.
1750 // FIXME: The -std= value is not ignored; it affects the tokenization
1751 // and preprocessing rules if we're preprocessing this asm input.
1755 llvm_unreachable("unexpected input language");
1758 /// Get language name for given input kind.
1759 static const StringRef GetInputKindName(InputKind IK) {
1760 switch (IK.getLanguage()) {
1763 case InputKind::ObjC:
1764 return "Objective-C";
1765 case InputKind::CXX:
1767 case InputKind::ObjCXX:
1768 return "Objective-C++";
1769 case InputKind::OpenCL:
1771 case InputKind::CUDA:
1773 case InputKind::RenderScript:
1774 return "RenderScript";
1776 case InputKind::Asm:
1778 case InputKind::LLVM_IR:
1781 case InputKind::Unknown:
1784 llvm_unreachable("unknown input language");
1787 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
1788 const TargetOptions &TargetOpts,
1789 PreprocessorOptions &PPOpts,
1790 DiagnosticsEngine &Diags) {
1791 // FIXME: Cleanup per-file based stuff.
1792 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1793 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
1794 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1795 #define LANGSTANDARD(id, name, lang, desc, features) \
1796 .Case(name, LangStandard::lang_##id)
1797 #define LANGSTANDARD_ALIAS(id, alias) \
1798 .Case(alias, LangStandard::lang_##id)
1799 #include "clang/Frontend/LangStandards.def"
1800 .Default(LangStandard::lang_unspecified);
1801 if (LangStd == LangStandard::lang_unspecified) {
1802 Diags.Report(diag::err_drv_invalid_value)
1803 << A->getAsString(Args) << A->getValue();
1804 // Report supported standards with short description.
1805 for (unsigned KindValue = 0;
1806 KindValue != LangStandard::lang_unspecified;
1808 const LangStandard &Std = LangStandard::getLangStandardForKind(
1809 static_cast<LangStandard::Kind>(KindValue));
1810 if (IsInputCompatibleWithStandard(IK, Std)) {
1811 auto Diag = Diags.Report(diag::note_drv_use_standard);
1812 Diag << Std.getName() << Std.getDescription();
1813 unsigned NumAliases = 0;
1814 #define LANGSTANDARD(id, name, lang, desc, features)
1815 #define LANGSTANDARD_ALIAS(id, alias) \
1816 if (KindValue == LangStandard::lang_##id) ++NumAliases;
1817 #define LANGSTANDARD_ALIAS_DEPR(id, alias)
1818 #include "clang/Frontend/LangStandards.def"
1820 #define LANGSTANDARD(id, name, lang, desc, features)
1821 #define LANGSTANDARD_ALIAS(id, alias) \
1822 if (KindValue == LangStandard::lang_##id) Diag << alias;
1823 #define LANGSTANDARD_ALIAS_DEPR(id, alias)
1824 #include "clang/Frontend/LangStandards.def"
1828 // Valid standard, check to make sure language and standard are
1830 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1831 if (!IsInputCompatibleWithStandard(IK, Std)) {
1832 Diags.Report(diag::err_drv_argument_not_allowed_with)
1833 << A->getAsString(Args) << GetInputKindName(IK);
1838 // -cl-std only applies for OpenCL language standards.
1839 // Override the -std option in this case.
1840 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
1841 LangStandard::Kind OpenCLLangStd
1842 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1843 .Cases("cl", "CL", LangStandard::lang_opencl10)
1844 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11)
1845 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12)
1846 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20)
1847 .Default(LangStandard::lang_unspecified);
1849 if (OpenCLLangStd == LangStandard::lang_unspecified) {
1850 Diags.Report(diag::err_drv_invalid_value)
1851 << A->getAsString(Args) << A->getValue();
1854 LangStd = OpenCLLangStd;
1857 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header);
1859 llvm::Triple T(TargetOpts.Triple);
1860 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd);
1862 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0.
1863 // This option should be deprecated for CL > 1.0 because
1864 // this option was added for compatibility with OpenCL 1.0.
1865 if (Args.getLastArg(OPT_cl_strict_aliasing)
1866 && Opts.OpenCLVersion > 100) {
1867 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) +
1869 llvm::to_string((Opts.OpenCLVersion % 100) / 10);
1870 Diags.Report(diag::warn_option_invalid_ocl_version)
1871 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args);
1874 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1875 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1876 // while a subset (the non-C++ GNU keywords) is provided by GCC's
1877 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1878 // name, as it doesn't seem a useful distinction.
1879 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
1882 if (Args.hasArg(OPT_fno_operator_names))
1883 Opts.CXXOperatorNames = 0;
1885 if (Args.hasArg(OPT_fcuda_is_device))
1886 Opts.CUDAIsDevice = 1;
1888 if (Args.hasArg(OPT_fcuda_allow_variadic_functions))
1889 Opts.CUDAAllowVariadicFunctions = 1;
1891 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr))
1892 Opts.CUDAHostDeviceConstexpr = 0;
1894 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero))
1895 Opts.CUDADeviceFlushDenormalsToZero = 1;
1897 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals))
1898 Opts.CUDADeviceApproxTranscendentals = 1;
1901 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
1902 StringRef value = arg->getValue();
1903 if (Opts.ObjCRuntime.tryParse(value))
1904 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
1907 if (Args.hasArg(OPT_fobjc_gc_only))
1908 Opts.setGC(LangOptions::GCOnly);
1909 else if (Args.hasArg(OPT_fobjc_gc))
1910 Opts.setGC(LangOptions::HybridGC);
1911 else if (Args.hasArg(OPT_fobjc_arc)) {
1912 Opts.ObjCAutoRefCount = 1;
1913 if (!Opts.ObjCRuntime.allowsARC())
1914 Diags.Report(diag::err_arc_unsupported_on_runtime);
1917 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
1918 // whether the feature is actually enabled. This is predominantly
1919 // determined by -fobjc-runtime, but we allow it to be overridden
1920 // from the command line for testing purposes.
1921 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
1922 Opts.ObjCWeakRuntime = 1;
1924 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
1926 // ObjCWeak determines whether __weak is actually enabled.
1927 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
1928 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) {
1929 if (!weakArg->getOption().matches(OPT_fobjc_weak)) {
1930 assert(!Opts.ObjCWeak);
1931 } else if (Opts.getGC() != LangOptions::NonGC) {
1932 Diags.Report(diag::err_objc_weak_with_gc);
1933 } else if (!Opts.ObjCWeakRuntime) {
1934 Diags.Report(diag::err_objc_weak_unsupported);
1938 } else if (Opts.ObjCAutoRefCount) {
1939 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
1942 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
1943 Opts.ObjCInferRelatedResultType = 0;
1945 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
1946 Opts.ObjCSubscriptingLegacyRuntime =
1947 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
1950 if (Args.hasArg(OPT_fgnu89_inline)) {
1952 Diags.Report(diag::err_drv_argument_not_allowed_with)
1953 << "-fgnu89-inline" << GetInputKindName(IK);
1958 if (Args.hasArg(OPT_fapple_kext)) {
1959 if (!Opts.CPlusPlus)
1960 Diags.Report(diag::warn_c_kext);
1965 if (Args.hasArg(OPT_print_ivar_layout))
1966 Opts.ObjCGCBitmapPrint = 1;
1967 if (Args.hasArg(OPT_fno_constant_cfstrings))
1968 Opts.NoConstantCFStrings = 1;
1970 if (Args.hasArg(OPT_fzvector))
1973 if (Args.hasArg(OPT_pthread))
1974 Opts.POSIXThreads = 1;
1976 // The value-visibility mode defaults to "default".
1977 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
1978 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
1980 Opts.setValueVisibilityMode(DefaultVisibility);
1983 // The type-visibility mode defaults to the value-visibility mode.
1984 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
1985 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
1987 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
1990 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
1991 Opts.InlineVisibilityHidden = 1;
1993 if (Args.hasArg(OPT_ftrapv)) {
1994 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
1995 // Set the handler, if one is specified.
1996 Opts.OverflowHandler =
1997 Args.getLastArgValue(OPT_ftrapv_handler);
1999 else if (Args.hasArg(OPT_fwrapv))
2000 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
2002 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
2003 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
2004 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
2005 Opts.MSCompatibilityVersion = 0;
2006 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) {
2008 if (VT.tryParse(A->getValue()))
2009 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
2011 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
2012 VT.getMinor().getValueOr(0) * 100000 +
2013 VT.getSubminor().getValueOr(0);
2016 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
2017 // is specified, or -std is set to a conforming mode.
2018 // Trigraphs are disabled by default in c++1z onwards.
2019 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z;
2021 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs);
2023 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
2024 OPT_fno_dollars_in_identifiers,
2026 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
2027 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags);
2028 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
2029 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
2030 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
2032 if (Args.hasArg(OPT_fno_lax_vector_conversions))
2033 Opts.LaxVectorConversions = 0;
2034 if (Args.hasArg(OPT_fno_threadsafe_statics))
2035 Opts.ThreadsafeStatics = 0;
2036 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
2037 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
2038 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
2039 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
2040 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind);
2041 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
2043 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti);
2044 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
2045 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL
2046 && Opts.OpenCLVersion >= 200);
2047 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
2048 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts);
2049 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts);
2050 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS;
2051 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse);
2052 Opts.ModulesDeclUse =
2053 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
2054 Opts.ModulesLocalVisibility =
2055 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS;
2056 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen);
2057 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo);
2058 Opts.ModulesSearchAll = Opts.Modules &&
2059 !Args.hasArg(OPT_fno_modules_search_all) &&
2060 Args.hasArg(OPT_fmodules_search_all);
2061 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
2062 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules);
2063 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
2064 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
2065 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false);
2066 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
2067 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
2068 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
2069 if (!Opts.NoBuiltin)
2070 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
2071 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
2072 Opts.RelaxedTemplateTemplateArgs =
2073 Args.hasArg(OPT_frelaxed_template_template_args);
2074 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation);
2075 Opts.AlignedAllocation =
2076 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation,
2077 Opts.AlignedAllocation);
2078 Opts.NewAlignOverride =
2079 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags);
2080 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) {
2081 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ);
2082 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args)
2084 Opts.NewAlignOverride = 0;
2086 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts);
2087 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
2088 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
2089 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
2090 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
2091 Opts.InstantiationDepth =
2092 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags);
2094 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
2095 Opts.ConstexprCallDepth =
2096 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
2097 Opts.ConstexprStepLimit =
2098 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
2099 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
2100 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
2101 Opts.NumLargeByValueCopy =
2102 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
2103 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
2104 Opts.ObjCConstantStringClass =
2105 Args.getLastArgValue(OPT_fconstant_string_class);
2106 Opts.ObjCDefaultSynthProperties =
2107 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
2108 Opts.EncodeExtendedBlockSig =
2109 Args.hasArg(OPT_fencode_extended_block_signature);
2110 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
2111 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
2112 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags);
2113 Opts.AlignDouble = Args.hasArg(OPT_malign_double);
2114 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
2115 Opts.PIE = Args.hasArg(OPT_pic_is_pie);
2116 Opts.Static = Args.hasArg(OPT_static_define);
2117 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
2118 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
2119 || Args.hasArg(OPT_fdump_record_layouts);
2120 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
2121 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
2122 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
2123 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
2124 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
2125 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
2126 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
2127 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
2128 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
2129 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
2130 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
2131 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
2132 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ);
2133 Opts.AppExt = Args.hasArg(OPT_fapplication_extension);
2134 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature);
2135 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end());
2136 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type);
2137 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns);
2138 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns
2140 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns)
2141 | Opts.NativeHalfArgsAndReturns;
2142 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm);
2144 // __declspec is enabled by default for the PS4 by the driver, and also
2145 // enabled for Microsoft Extensions or Borland Extensions, here.
2147 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a
2148 // CUDA extension. However, it is required for supporting
2149 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has
2150 // been rewritten in terms of something more generic, remove the Opts.CUDA
2152 Opts.DeclSpecKeyword =
2153 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec,
2154 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA));
2156 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
2157 switch (llvm::StringSwitch<unsigned>(A->getValue())
2158 .Case("target", LangOptions::ASMM_Target)
2159 .Case("no", LangOptions::ASMM_Off)
2160 .Case("yes", LangOptions::ASMM_On)
2163 Diags.Report(diag::err_drv_invalid_value)
2164 << "-faddress-space-map-mangling=" << A->getValue();
2166 case LangOptions::ASMM_Target:
2167 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
2169 case LangOptions::ASMM_On:
2170 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
2172 case LangOptions::ASMM_Off:
2173 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
2178 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
2179 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
2180 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
2183 LangOptions::PPTMK_FullGeneralitySingleInheritance)
2185 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
2187 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
2188 .Default(LangOptions::PPTMK_BestCase);
2189 if (InheritanceModel == LangOptions::PPTMK_BestCase)
2190 Diags.Report(diag::err_drv_invalid_value)
2191 << "-fms-memptr-rep=" << A->getValue();
2193 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
2196 // Check for MS default calling conventions being specified.
2197 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) {
2198 LangOptions::DefaultCallingConvention DefaultCC =
2199 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(
2201 .Case("cdecl", LangOptions::DCC_CDecl)
2202 .Case("fastcall", LangOptions::DCC_FastCall)
2203 .Case("stdcall", LangOptions::DCC_StdCall)
2204 .Case("vectorcall", LangOptions::DCC_VectorCall)
2205 .Default(LangOptions::DCC_None);
2206 if (DefaultCC == LangOptions::DCC_None)
2207 Diags.Report(diag::err_drv_invalid_value)
2208 << "-fdefault-calling-conv=" << A->getValue();
2210 llvm::Triple T(TargetOpts.Triple);
2211 llvm::Triple::ArchType Arch = T.getArch();
2212 bool emitError = (DefaultCC == LangOptions::DCC_FastCall ||
2213 DefaultCC == LangOptions::DCC_StdCall) &&
2214 Arch != llvm::Triple::x86;
2215 emitError |= DefaultCC == LangOptions::DCC_VectorCall &&
2216 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64);
2218 Diags.Report(diag::err_drv_argument_not_allowed_with)
2219 << A->getSpelling() << T.getTriple();
2221 Opts.setDefaultCallingConv(DefaultCC);
2225 if (Arg *A = Args.getLastArg(OPT_mrtd)) {
2226 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None)
2227 Diags.Report(diag::err_drv_argument_not_allowed_with)
2228 << A->getSpelling() << "-fdefault-calling-conv";
2230 llvm::Triple T(TargetOpts.Triple);
2231 if (T.getArch() != llvm::Triple::x86)
2232 Diags.Report(diag::err_drv_argument_not_allowed_with)
2233 << A->getSpelling() << T.getTriple();
2235 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall);
2239 // Check if -fopenmp is specified.
2240 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0;
2242 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls);
2243 Opts.OpenMPIsDevice =
2244 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device);
2248 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags);
2250 Opts.OpenMP = Version;
2251 // Provide diagnostic when a given target is not expected to be an OpenMP
2253 if (!Opts.OpenMPIsDevice) {
2254 switch (T.getArch()) {
2257 // Add unsupported host targets here:
2258 case llvm::Triple::nvptx:
2259 case llvm::Triple::nvptx64:
2260 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported)
2261 << TargetOpts.Triple;
2267 // Get the OpenMP target triples if any.
2268 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) {
2270 for (unsigned i = 0; i < A->getNumValues(); ++i) {
2271 llvm::Triple TT(A->getValue(i));
2273 if (TT.getArch() == llvm::Triple::UnknownArch)
2274 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i);
2276 Opts.OMPTargetTriples.push_back(TT);
2280 // Get OpenMP host file path if any and report if a non existent file is
2282 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) {
2283 Opts.OMPHostIRFile = A->getValue();
2284 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile))
2285 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found)
2286 << Opts.OMPHostIRFile;
2289 // Record whether the __DEPRECATED define was requested.
2290 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
2291 OPT_fno_deprecated_macro,
2294 // FIXME: Eliminate this dependency.
2295 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
2296 OptSize = getOptimizationLevelSize(Args);
2297 Opts.Optimize = Opt != 0;
2298 Opts.OptimizeSize = OptSize != 0;
2300 // This is the __NO_INLINE__ define, which just depends on things like the
2301 // optimization level and -fno-inline, not actually whether the backend has
2302 // inlining enabled.
2303 Opts.NoInlineDefine = !Opts.Optimize;
2304 if (Arg *InlineArg = Args.getLastArg(
2305 options::OPT_finline_functions, options::OPT_finline_hint_functions,
2306 options::OPT_fno_inline_functions, options::OPT_fno_inline))
2307 if (InlineArg->getOption().matches(options::OPT_fno_inline))
2308 Opts.NoInlineDefine = true;
2310 Opts.FastMath = Args.hasArg(OPT_ffast_math) ||
2311 Args.hasArg(OPT_cl_fast_relaxed_math);
2312 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) ||
2313 Args.hasArg(OPT_cl_finite_math_only) ||
2314 Args.hasArg(OPT_cl_fast_relaxed_math);
2315 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
2316 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
2317 Args.hasArg(OPT_cl_fast_relaxed_math);
2319 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
2320 StringRef Val = A->getValue();
2322 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast);
2323 else if (Val == "on")
2324 Opts.setDefaultFPContractMode(LangOptions::FPC_On);
2325 else if (Val == "off")
2326 Opts.setDefaultFPContractMode(LangOptions::FPC_Off);
2328 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
2331 Opts.RetainCommentsFromSystemHeaders =
2332 Args.hasArg(OPT_fretain_comments_from_system_headers);
2334 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
2337 Diags.Report(diag::err_drv_invalid_value)
2338 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
2340 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
2341 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
2342 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
2343 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
2346 // Parse -fsanitize= arguments.
2347 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
2348 Diags, Opts.Sanitize);
2349 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here.
2350 Opts.SanitizeAddressFieldPadding =
2351 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags);
2352 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist);
2354 // -fxray-instrument
2355 Opts.XRayInstrument =
2356 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false);
2358 // -fxray-{always,never}-instrument= filenames.
2359 Opts.XRayAlwaysInstrumentFiles =
2360 Args.getAllArgValues(OPT_fxray_always_instrument);
2361 Opts.XRayNeverInstrumentFiles =
2362 Args.getAllArgValues(OPT_fxray_never_instrument);
2364 // -fallow-editor-placeholders
2365 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders);
2368 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
2369 FileManager &FileMgr,
2370 DiagnosticsEngine &Diags) {
2371 using namespace options;
2372 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
2373 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
2374 if (const Arg *A = Args.getLastArg(OPT_token_cache))
2375 Opts.TokenCache = A->getValue();
2377 Opts.TokenCache = Opts.ImplicitPTHInclude;
2378 Opts.UsePredefines = !Args.hasArg(OPT_undef);
2379 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
2380 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
2381 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors);
2383 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
2384 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl))
2385 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
2387 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
2388 StringRef Value(A->getValue());
2389 size_t Comma = Value.find(',');
2391 unsigned EndOfLine = 0;
2393 if (Comma == StringRef::npos ||
2394 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
2395 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
2396 Diags.Report(diag::err_drv_preamble_format);
2398 Opts.PrecompiledPreambleBytes.first = Bytes;
2399 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
2403 // Add macros from the command line.
2404 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) {
2405 if (A->getOption().matches(OPT_D))
2406 Opts.addMacroDef(A->getValue());
2408 Opts.addMacroUndef(A->getValue());
2411 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
2413 // Add the ordered list of -includes.
2414 for (const Arg *A : Args.filtered(OPT_include))
2415 Opts.Includes.emplace_back(A->getValue());
2417 for (const Arg *A : Args.filtered(OPT_chain_include))
2418 Opts.ChainedIncludes.emplace_back(A->getValue());
2420 for (const Arg *A : Args.filtered(OPT_remap_file)) {
2421 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
2423 if (Split.second.empty()) {
2424 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
2428 Opts.addRemappedFile(Split.first, Split.second);
2431 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
2432 StringRef Name = A->getValue();
2433 unsigned Library = llvm::StringSwitch<unsigned>(Name)
2434 .Case("libc++", ARCXX_libcxx)
2435 .Case("libstdc++", ARCXX_libstdcxx)
2436 .Case("none", ARCXX_nolib)
2439 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
2441 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
2445 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
2447 frontend::ActionKind Action) {
2448 using namespace options;
2451 case frontend::ASTDeclList:
2452 case frontend::ASTDump:
2453 case frontend::ASTPrint:
2454 case frontend::ASTView:
2455 case frontend::EmitAssembly:
2456 case frontend::EmitBC:
2457 case frontend::EmitHTML:
2458 case frontend::EmitLLVM:
2459 case frontend::EmitLLVMOnly:
2460 case frontend::EmitCodeGenOnly:
2461 case frontend::EmitObj:
2462 case frontend::FixIt:
2463 case frontend::GenerateModule:
2464 case frontend::GenerateModuleInterface:
2465 case frontend::GeneratePCH:
2466 case frontend::GeneratePTH:
2467 case frontend::ParseSyntaxOnly:
2468 case frontend::ModuleFileInfo:
2469 case frontend::VerifyPCH:
2470 case frontend::PluginAction:
2471 case frontend::PrintDeclContext:
2472 case frontend::RewriteObjC:
2473 case frontend::RewriteTest:
2474 case frontend::RunAnalysis:
2475 case frontend::MigrateSource:
2479 case frontend::DumpRawTokens:
2480 case frontend::DumpTokens:
2481 case frontend::InitOnly:
2482 case frontend::PrintPreamble:
2483 case frontend::PrintPreprocessedInput:
2484 case frontend::RewriteMacros:
2485 case frontend::RunPreprocessorOnly:
2486 Opts.ShowCPP = !Args.hasArg(OPT_dM);
2490 Opts.ShowComments = Args.hasArg(OPT_C);
2491 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
2492 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
2493 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
2494 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI);
2495 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
2496 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives);
2499 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args,
2500 DiagnosticsEngine &Diags) {
2501 using namespace options;
2502 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
2503 if (Arg *A = Args.getLastArg(OPT_meabi)) {
2504 StringRef Value = A->getValue();
2505 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value)
2506 .Case("default", llvm::EABI::Default)
2507 .Case("4", llvm::EABI::EABI4)
2508 .Case("5", llvm::EABI::EABI5)
2509 .Case("gnu", llvm::EABI::GNU)
2510 .Default(llvm::EABI::Unknown);
2511 if (EABIVersion == llvm::EABI::Unknown)
2512 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
2515 Opts.EABIVersion = Value;
2517 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
2518 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
2519 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
2520 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
2521 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
2522 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ);
2523 // Use the default target triple if unspecified.
2524 if (Opts.Triple.empty())
2525 Opts.Triple = llvm::sys::getDefaultTargetTriple();
2526 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ);
2529 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
2530 const char *const *ArgBegin,
2531 const char *const *ArgEnd,
2532 DiagnosticsEngine &Diags) {
2533 bool Success = true;
2535 // Parse the arguments.
2536 std::unique_ptr<OptTable> Opts = createDriverOptTable();
2537 const unsigned IncludedFlagsBitmask = options::CC1Option;
2538 unsigned MissingArgIndex, MissingArgCount;
2540 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex,
2541 MissingArgCount, IncludedFlagsBitmask);
2542 LangOptions &LangOpts = *Res.getLangOpts();
2544 // Check for missing argument error.
2545 if (MissingArgCount) {
2546 Diags.Report(diag::err_drv_missing_argument)
2547 << Args.getArgString(MissingArgIndex) << MissingArgCount;
2551 // Issue errors on unknown arguments.
2552 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) {
2553 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args);
2557 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
2558 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args);
2559 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args);
2561 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags,
2562 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/);
2563 ParseCommentArgs(LangOpts.CommentOpts, Args);
2564 ParseFileSystemArgs(Res.getFileSystemOpts(), Args);
2565 // FIXME: We shouldn't have to pass the DashX option around here
2566 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags,
2567 LangOpts.IsHeaderFile);
2568 ParseTargetArgs(Res.getTargetOpts(), Args, Diags);
2569 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
2570 Res.getTargetOpts());
2571 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args,
2572 Res.getFileSystemOpts().WorkingDir);
2573 if (DashX.getFormat() == InputKind::Precompiled ||
2574 DashX.getLanguage() == InputKind::LLVM_IR) {
2575 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
2576 // PassManager in BackendUtil.cpp. They need to be initializd no matter
2577 // what the input type is.
2578 if (Args.hasArg(OPT_fobjc_arc))
2579 LangOpts.ObjCAutoRefCount = 1;
2580 // PIClevel and PIELevel are needed during code generation and this should be
2581 // set regardless of the input type.
2582 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
2583 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie);
2584 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
2585 Diags, LangOpts.Sanitize);
2587 // Other LangOpts are only initialzed when the input is not AST or LLVM IR.
2588 // FIXME: Should we really be calling this for an InputKind::Asm input?
2589 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(),
2590 Res.getPreprocessorOpts(), Diags);
2591 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
2592 LangOpts.ObjCExceptions = 1;
2595 if (LangOpts.CUDA) {
2596 // During CUDA device-side compilation, the aux triple is the
2597 // triple used for host compilation.
2598 if (LangOpts.CUDAIsDevice)
2599 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
2602 // FIXME: Override value name discarding when asan or msan is used because the
2603 // backend passes depend on the name of the alloca in order to print out
2605 Res.getCodeGenOpts().DiscardValueNames &=
2606 !LangOpts.Sanitize.has(SanitizerKind::Address) &&
2607 !LangOpts.Sanitize.has(SanitizerKind::Memory);
2609 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of
2610 // PCH file and find the original header name. Remove the need to do that in
2611 // ParsePreprocessorArgs and remove the FileManager
2612 // parameters from the function and the "FileManager.h" #include.
2613 FileManager FileMgr(Res.getFileSystemOpts());
2614 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags);
2615 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args,
2616 Res.getFrontendOpts().ProgramAction);
2618 // Turn on -Wspir-compat for SPIR target.
2619 llvm::Triple T(Res.getTargetOpts().Triple);
2620 auto Arch = T.getArch();
2621 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) {
2622 Res.getDiagnosticOpts().Warnings.push_back("spir-compat");
2627 std::string CompilerInvocation::getModuleHash() const {
2628 // Note: For QoI reasons, the things we use as a hash here should all be
2629 // dumped via the -module-info flag.
2630 using llvm::hash_code;
2631 using llvm::hash_value;
2632 using llvm::hash_combine;
2634 // Start the signature with the compiler version.
2635 // FIXME: We'd rather use something more cryptographically sound than
2636 // CityHash, but this will do for now.
2637 hash_code code = hash_value(getClangFullRepositoryVersion());
2639 // Extend the signature with the language options
2640 #define LANGOPT(Name, Bits, Default, Description) \
2641 code = hash_combine(code, LangOpts->Name);
2642 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
2643 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
2644 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
2645 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
2646 #include "clang/Basic/LangOptions.def"
2648 for (StringRef Feature : LangOpts->ModuleFeatures)
2649 code = hash_combine(code, Feature);
2651 // Extend the signature with the target options.
2652 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
2654 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i)
2655 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]);
2657 // Extend the signature with preprocessor options.
2658 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
2659 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
2660 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
2662 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator
2663 I = getPreprocessorOpts().Macros.begin(),
2664 IEnd = getPreprocessorOpts().Macros.end();
2666 // If we're supposed to ignore this macro for the purposes of modules,
2667 // don't put it into the hash.
2668 if (!hsOpts.ModulesIgnoreMacros.empty()) {
2669 // Check whether we're ignoring this macro.
2670 StringRef MacroDef = I->first;
2671 if (hsOpts.ModulesIgnoreMacros.count(
2672 llvm::CachedHashString(MacroDef.split('=').first)))
2676 code = hash_combine(code, I->first, I->second);
2679 // Extend the signature with the sysroot and other header search options.
2680 code = hash_combine(code, hsOpts.Sysroot,
2681 hsOpts.ModuleFormat,
2682 hsOpts.UseDebugInfo,
2683 hsOpts.UseBuiltinIncludes,
2684 hsOpts.UseStandardSystemIncludes,
2685 hsOpts.UseStandardCXXIncludes,
2687 hsOpts.ModulesValidateDiagnosticOptions);
2688 code = hash_combine(code, hsOpts.ResourceDir);
2690 // Extend the signature with the user build path.
2691 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
2693 // Extend the signature with the module file extensions.
2694 const FrontendOptions &frontendOpts = getFrontendOpts();
2695 for (const auto &ext : frontendOpts.ModuleFileExtensions) {
2696 code = ext->hashExtension(code);
2699 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
2704 template<typename IntTy>
2705 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
2707 DiagnosticsEngine *Diags) {
2708 IntTy Res = Default;
2709 if (Arg *A = Args.getLastArg(Id)) {
2710 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
2712 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)
2720 // Declared in clang/Frontend/Utils.h.
2721 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
2722 DiagnosticsEngine *Diags) {
2723 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags);
2726 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
2728 DiagnosticsEngine *Diags) {
2729 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags);
2732 void BuryPointer(const void *Ptr) {
2733 // This function may be called only a small fixed amount of times per each
2734 // invocation, otherwise we do actually have a leak which we want to report.
2735 // If this function is called more than kGraveYardMaxSize times, the pointers
2736 // will not be properly buried and a leak detector will report a leak, which
2737 // is what we want in such case.
2738 static const size_t kGraveYardMaxSize = 16;
2739 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize];
2740 static std::atomic<unsigned> GraveYardSize;
2741 unsigned Idx = GraveYardSize++;
2742 if (Idx >= kGraveYardMaxSize)
2744 GraveYard[Idx] = Ptr;
2747 IntrusiveRefCntPtr<vfs::FileSystem>
2748 createVFSFromCompilerInvocation(const CompilerInvocation &CI,
2749 DiagnosticsEngine &Diags) {
2750 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
2751 return vfs::getRealFileSystem();
2753 IntrusiveRefCntPtr<vfs::OverlayFileSystem>
2754 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem()));
2755 // earlier vfs files are on the bottom
2756 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
2757 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
2758 llvm::MemoryBuffer::getFile(File);
2760 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
2761 return IntrusiveRefCntPtr<vfs::FileSystem>();
2764 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML(
2765 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File);
2767 Diags.Report(diag::err_invalid_vfs_overlay) << File;
2768 return IntrusiveRefCntPtr<vfs::FileSystem>();
2770 Overlay->pushOverlay(FS);
2774 } // end namespace clang