1 //===--- CompilerInvocation.cpp -------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "clang/Frontend/CompilerInvocation.h"
11 #include "TestModuleFileExtension.h"
12 #include "clang/Basic/Builtins.h"
13 #include "clang/Basic/FileManager.h"
14 #include "clang/Basic/Version.h"
15 #include "clang/Config/config.h"
16 #include "clang/Driver/DriverDiagnostic.h"
17 #include "clang/Driver/Options.h"
18 #include "clang/Driver/Util.h"
19 #include "clang/Frontend/FrontendDiagnostic.h"
20 #include "clang/Frontend/LangStandard.h"
21 #include "clang/Frontend/Utils.h"
22 #include "clang/Lex/HeaderSearchOptions.h"
23 #include "clang/Lex/PreprocessorOptions.h"
24 #include "clang/Serialization/ASTReader.h"
25 #include "clang/Serialization/ModuleFileExtension.h"
26 #include "llvm/ADT/Hashing.h"
27 #include "llvm/ADT/STLExtras.h"
28 #include "llvm/ADT/SmallVector.h"
29 #include "llvm/ADT/StringExtras.h"
30 #include "llvm/ADT/StringSwitch.h"
31 #include "llvm/ADT/Triple.h"
32 #include "llvm/Linker/Linker.h"
33 #include "llvm/Option/Arg.h"
34 #include "llvm/Option/ArgList.h"
35 #include "llvm/Option/OptTable.h"
36 #include "llvm/Option/Option.h"
37 #include "llvm/ProfileData/InstrProfReader.h"
38 #include "llvm/Support/CodeGen.h"
39 #include "llvm/Support/ErrorHandling.h"
40 #include "llvm/Support/FileSystem.h"
41 #include "llvm/Support/Host.h"
42 #include "llvm/Support/Path.h"
43 #include "llvm/Support/Process.h"
44 #include "llvm/Target/TargetOptions.h"
45 #include "llvm/Support/ScopedPrinter.h"
49 #include <system_error>
50 using namespace clang;
52 //===----------------------------------------------------------------------===//
54 //===----------------------------------------------------------------------===//
56 CompilerInvocationBase::CompilerInvocationBase()
57 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
58 DiagnosticOpts(new DiagnosticOptions()),
59 HeaderSearchOpts(new HeaderSearchOptions()),
60 PreprocessorOpts(new PreprocessorOptions()) {}
62 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X)
63 : RefCountedBase<CompilerInvocation>(),
64 LangOpts(new LangOptions(*X.getLangOpts())),
65 TargetOpts(new TargetOptions(X.getTargetOpts())),
66 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
67 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
68 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {}
70 CompilerInvocationBase::~CompilerInvocationBase() {}
72 //===----------------------------------------------------------------------===//
73 // Deserialization (from args)
74 //===----------------------------------------------------------------------===//
76 using namespace clang::driver;
77 using namespace clang::driver::options;
78 using namespace llvm::opt;
82 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
83 DiagnosticsEngine &Diags) {
84 unsigned DefaultOpt = 0;
85 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable))
88 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
89 if (A->getOption().matches(options::OPT_O0))
92 if (A->getOption().matches(options::OPT_Ofast))
95 assert (A->getOption().matches(options::OPT_O));
97 StringRef S(A->getValue());
98 if (S == "s" || S == "z" || S.empty())
104 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags);
110 static unsigned getOptimizationLevelSize(ArgList &Args) {
111 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
112 if (A->getOption().matches(options::OPT_O)) {
113 switch (A->getValue()[0]) {
126 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
127 OptSpecifier GroupWithValue,
128 std::vector<std::string> &Diagnostics) {
129 for (Arg *A : Args.filtered(Group)) {
130 if (A->getOption().getKind() == Option::FlagClass) {
131 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
132 // its name (minus the "W" or "R" at the beginning) to the warning list.
133 Diagnostics.push_back(A->getOption().getName().drop_front(1));
134 } else if (A->getOption().matches(GroupWithValue)) {
135 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group.
136 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-"));
138 // Otherwise, add its value (for OPT_W_Joined and similar).
139 for (const char *Arg : A->getValues())
140 Diagnostics.emplace_back(Arg);
145 static void getAllNoBuiltinFuncValues(ArgList &Args,
146 std::vector<std::string> &Funcs) {
147 SmallVector<const char *, 8> Values;
148 for (const auto &Arg : Args) {
149 const Option &O = Arg->getOption();
150 if (O.matches(options::OPT_fno_builtin_)) {
151 const char *FuncName = Arg->getValue();
152 if (Builtin::Context::isBuiltinFunc(FuncName))
153 Values.push_back(FuncName);
156 Funcs.insert(Funcs.end(), Values.begin(), Values.end());
159 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
160 DiagnosticsEngine &Diags) {
161 using namespace options;
163 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
164 StringRef Name = A->getValue();
165 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
166 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
167 .Case(CMDFLAG, NAME##Model)
168 #include "clang/StaticAnalyzer/Core/Analyses.def"
170 if (Value == NumStores) {
171 Diags.Report(diag::err_drv_invalid_value)
172 << A->getAsString(Args) << Name;
175 Opts.AnalysisStoreOpt = Value;
179 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
180 StringRef Name = A->getValue();
181 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
182 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
183 .Case(CMDFLAG, NAME##Model)
184 #include "clang/StaticAnalyzer/Core/Analyses.def"
185 .Default(NumConstraints);
186 if (Value == NumConstraints) {
187 Diags.Report(diag::err_drv_invalid_value)
188 << A->getAsString(Args) << Name;
191 Opts.AnalysisConstraintsOpt = Value;
195 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
196 StringRef Name = A->getValue();
197 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
198 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
199 .Case(CMDFLAG, PD_##NAME)
200 #include "clang/StaticAnalyzer/Core/Analyses.def"
201 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
202 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
203 Diags.Report(diag::err_drv_invalid_value)
204 << A->getAsString(Args) << Name;
207 Opts.AnalysisDiagOpt = Value;
211 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
212 StringRef Name = A->getValue();
213 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
214 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
216 #include "clang/StaticAnalyzer/Core/Analyses.def"
217 .Default(NumPurgeModes);
218 if (Value == NumPurgeModes) {
219 Diags.Report(diag::err_drv_invalid_value)
220 << A->getAsString(Args) << Name;
223 Opts.AnalysisPurgeOpt = Value;
227 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
228 StringRef Name = A->getValue();
229 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
230 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
232 #include "clang/StaticAnalyzer/Core/Analyses.def"
233 .Default(NumInliningModes);
234 if (Value == NumInliningModes) {
235 Diags.Report(diag::err_drv_invalid_value)
236 << A->getAsString(Args) << Name;
239 Opts.InliningMode = Value;
243 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
244 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers);
245 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks);
247 Opts.visualizeExplodedGraphWithGraphViz =
248 Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
249 Opts.visualizeExplodedGraphWithUbiGraph =
250 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
251 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
252 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
253 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
254 Opts.AnalyzeNestedBlocks =
255 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
256 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume);
257 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
258 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
259 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
260 Opts.maxBlockVisitOnPath =
261 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags);
262 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
263 Opts.InlineMaxStackDepth =
264 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth,
265 Opts.InlineMaxStackDepth, Diags);
267 Opts.CheckersControlList.clear();
269 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) {
271 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
272 // We can have a list of comma separated checker names, e.g:
273 // '-analyzer-checker=cocoa,unix'
274 StringRef checkerList = A->getValue();
275 SmallVector<StringRef, 4> checkers;
276 checkerList.split(checkers, ",");
277 for (StringRef checker : checkers)
278 Opts.CheckersControlList.emplace_back(checker, enable);
281 // Go through the analyzer configuration options.
282 for (const Arg *A : Args.filtered(OPT_analyzer_config)) {
284 // We can have a list of comma separated config names, e.g:
285 // '-analyzer-config key1=val1,key2=val2'
286 StringRef configList = A->getValue();
287 SmallVector<StringRef, 4> configVals;
288 configList.split(configVals, ",");
289 for (unsigned i = 0, e = configVals.size(); i != e; ++i) {
291 std::tie(key, val) = configVals[i].split("=");
293 Diags.Report(SourceLocation(),
294 diag::err_analyzer_config_no_value) << configVals[i];
298 if (val.find('=') != StringRef::npos) {
299 Diags.Report(SourceLocation(),
300 diag::err_analyzer_config_multiple_values)
305 Opts.Config[key] = val;
312 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
313 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
314 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
318 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
319 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
320 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
323 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) {
324 if (Arg *A = Args.getLastArg(OPT_mcode_model)) {
325 StringRef Value = A->getValue();
326 if (Value == "small" || Value == "kernel" || Value == "medium" ||
329 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
334 /// \brief Create a new Regex instance out of the string value in \p RpassArg.
335 /// It returns a pointer to the newly generated Regex instance.
336 static std::shared_ptr<llvm::Regex>
337 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args,
339 StringRef Val = RpassArg->getValue();
340 std::string RegexError;
341 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val);
342 if (!Pattern->isValid(RegexError)) {
343 Diags.Report(diag::err_drv_optimization_remark_pattern)
344 << RegexError << RpassArg->getAsString(Args);
350 static bool parseDiagnosticLevelMask(StringRef FlagName,
351 const std::vector<std::string> &Levels,
352 DiagnosticsEngine *Diags,
353 DiagnosticLevelMask &M) {
355 for (const auto &Level : Levels) {
356 DiagnosticLevelMask const PM =
357 llvm::StringSwitch<DiagnosticLevelMask>(Level)
358 .Case("note", DiagnosticLevelMask::Note)
359 .Case("remark", DiagnosticLevelMask::Remark)
360 .Case("warning", DiagnosticLevelMask::Warning)
361 .Case("error", DiagnosticLevelMask::Error)
362 .Default(DiagnosticLevelMask::None);
363 if (PM == DiagnosticLevelMask::None) {
366 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level;
373 static void parseSanitizerKinds(StringRef FlagName,
374 const std::vector<std::string> &Sanitizers,
375 DiagnosticsEngine &Diags, SanitizerSet &S) {
376 for (const auto &Sanitizer : Sanitizers) {
377 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false);
379 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer;
385 // Set the profile kind for fprofile-instrument.
386 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args,
387 DiagnosticsEngine &Diags) {
388 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ);
391 StringRef S = A->getValue();
392 unsigned I = llvm::StringSwitch<unsigned>(S)
393 .Case("none", CodeGenOptions::ProfileNone)
394 .Case("clang", CodeGenOptions::ProfileClangInstr)
395 .Case("llvm", CodeGenOptions::ProfileIRInstr)
398 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args)
402 CodeGenOptions::ProfileInstrKind Instrumentor =
403 static_cast<CodeGenOptions::ProfileInstrKind>(I);
404 Opts.setProfileInstr(Instrumentor);
407 // Set the profile kind using fprofile-instrument-use-path.
408 static void setPGOUseInstrumentor(CodeGenOptions &Opts,
409 const Twine &ProfileName) {
410 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName);
411 // In error, return silently and let Clang PGOUse report the error message.
412 if (auto E = ReaderOrErr.takeError()) {
413 llvm::consumeError(std::move(E));
414 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
417 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader =
418 std::move(ReaderOrErr.get());
419 if (PGOReader->isIRLevelProfile())
420 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr);
422 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
425 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
426 DiagnosticsEngine &Diags,
427 const TargetOptions &TargetOpts) {
428 using namespace options;
430 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple);
432 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
433 // TODO: This could be done in Driver
434 unsigned MaxOptLevel = 3;
435 if (OptimizationLevel > MaxOptLevel) {
436 // If the optimization level is not supported, fall back on the default
438 Diags.Report(diag::warn_drv_optimization_value)
439 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
440 OptimizationLevel = MaxOptLevel;
442 Opts.OptimizationLevel = OptimizationLevel;
444 // At O0 we want to fully disable inlining outside of cases marked with
445 // 'alwaysinline' that are required for correctness.
446 Opts.setInlining((Opts.OptimizationLevel == 0)
447 ? CodeGenOptions::OnlyAlwaysInlining
448 : CodeGenOptions::NormalInlining);
449 // Explicit inlining flags can disable some or all inlining even at
450 // optimization levels above zero.
451 if (Arg *InlineArg = Args.getLastArg(
452 options::OPT_finline_functions, options::OPT_finline_hint_functions,
453 options::OPT_fno_inline_functions, options::OPT_fno_inline)) {
454 if (Opts.OptimizationLevel > 0) {
455 const Option &InlineOpt = InlineArg->getOption();
456 if (InlineOpt.matches(options::OPT_finline_functions))
457 Opts.setInlining(CodeGenOptions::NormalInlining);
458 else if (InlineOpt.matches(options::OPT_finline_hint_functions))
459 Opts.setInlining(CodeGenOptions::OnlyHintInlining);
461 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
465 Opts.ExperimentalNewPassManager = Args.hasFlag(
466 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager,
467 /* Default */ false);
469 if (Arg *A = Args.getLastArg(OPT_fveclib)) {
470 StringRef Name = A->getValue();
471 if (Name == "Accelerate")
472 Opts.setVecLib(CodeGenOptions::Accelerate);
473 else if (Name == "SVML")
474 Opts.setVecLib(CodeGenOptions::SVML);
475 else if (Name == "none")
476 Opts.setVecLib(CodeGenOptions::NoLibrary);
478 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
481 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) {
483 llvm::StringSwitch<unsigned>(A->getValue())
484 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly)
485 .Case("limited", codegenoptions::LimitedDebugInfo)
486 .Case("standalone", codegenoptions::FullDebugInfo)
489 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
492 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val));
494 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) {
495 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
496 .Case("gdb", unsigned(llvm::DebuggerKind::GDB))
497 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB))
498 .Case("sce", unsigned(llvm::DebuggerKind::SCE))
501 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
504 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val));
506 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags);
507 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
508 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview);
509 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables);
510 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std);
511 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
512 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining);
513 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs);
514 Opts.DebugExplicitImport = Triple.isPS4CPU();
516 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ))
517 Opts.DebugPrefixMap.insert(StringRef(Arg).split('='));
520 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists))
521 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
523 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes);
524 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
525 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
526 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
527 OPT_fuse_register_sized_bitfield_access);
528 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
529 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
530 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
531 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
532 Opts.NoCommon = Args.hasArg(OPT_fno_common);
533 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
534 Opts.OptimizeSize = getOptimizationLevelSize(Args);
535 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
536 Args.hasArg(OPT_ffreestanding));
537 if (Opts.SimplifyLibCalls)
538 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
540 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
541 (Opts.OptimizationLevel > 1));
542 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
544 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
545 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
546 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
548 setPGOInstrumentor(Opts, Args, Diags);
549 Opts.InstrProfileOutput =
550 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ);
551 Opts.ProfileInstrumentUsePath =
552 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ);
553 if (!Opts.ProfileInstrumentUsePath.empty())
554 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath);
556 Opts.CoverageMapping =
557 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false);
558 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
559 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
560 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments);
561 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
562 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
563 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
564 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
565 Opts.CodeModel = getCodeModel(Args, Diags);
566 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
568 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg));
569 Opts.DisableFree = Args.hasArg(OPT_disable_free);
570 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names);
571 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
572 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
573 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable);
574 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
575 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
576 Args.hasArg(OPT_cl_finite_math_only) ||
577 Args.hasArg(OPT_cl_fast_relaxed_math));
578 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
579 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
580 Args.hasArg(OPT_cl_finite_math_only) ||
581 Args.hasArg(OPT_cl_fast_relaxed_math));
582 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) ||
583 Args.hasArg(OPT_cl_no_signed_zeros));
584 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero);
585 Opts.CorrectlyRoundedDivSqrt =
586 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt);
587 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
588 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math);
589 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
590 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
591 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
592 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
593 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
594 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
595 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
596 Opts.IncrementalLinkerCompatible =
597 Args.hasArg(OPT_mincremental_linker_compatible);
598 Opts.PIECopyRelocations =
599 Args.hasArg(OPT_mpie_copy_relocations);
600 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
601 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
602 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
603 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
604 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
605 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers);
606 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
607 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
608 Args.hasArg(OPT_cl_fast_relaxed_math);
609 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
610 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
611 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
612 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
613 Diags.Report(diag::err_drv_invalid_value)
614 << Args.getLastArg(OPT_mthread_model)->getAsString(Args)
616 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
617 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
619 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
620 OPT_fno_function_sections, false);
621 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
622 OPT_fno_data_sections, false);
623 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
624 OPT_fno_unique_section_names, true);
626 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
628 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables);
630 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ);
631 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ);
632 Opts.EmitSummaryIndex = A && A->containsValue("thin");
633 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) {
634 if (IK != IK_LLVM_IR)
635 Diags.Report(diag::err_drv_argument_only_allowed_with)
636 << A->getAsString(Args) << "-x ir";
637 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ);
640 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile);
642 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive);
643 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
644 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
646 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
647 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
649 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
650 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
651 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
652 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
653 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file);
654 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file);
655 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
656 Opts.CoverageNoFunctionNamesInData =
657 Args.hasArg(OPT_coverage_no_function_names_in_data);
658 Opts.CoverageExitBlockBeforeBody =
659 Args.hasArg(OPT_coverage_exit_block_before_body);
660 if (Args.hasArg(OPT_coverage_version_EQ)) {
661 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
662 if (CoverageVersion.size() != 4) {
663 Diags.Report(diag::err_drv_invalid_value)
664 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
667 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
671 // Handle -fembed-bitcode option.
672 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) {
673 StringRef Name = A->getValue();
674 unsigned Model = llvm::StringSwitch<unsigned>(Name)
675 .Case("off", CodeGenOptions::Embed_Off)
676 .Case("all", CodeGenOptions::Embed_All)
677 .Case("bitcode", CodeGenOptions::Embed_Bitcode)
678 .Case("marker", CodeGenOptions::Embed_Marker)
681 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
684 Opts.setEmbedBitcode(
685 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model));
687 // FIXME: For backend options that are not yet recorded as function
688 // attributes in the IR, keep track of them so we can embed them in a
689 // separate data section and use them when building the bitcode.
690 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) {
691 for (const auto &A : Args) {
692 // Do not encode output and input.
693 if (A->getOption().getID() == options::OPT_o ||
694 A->getOption().getID() == options::OPT_INPUT ||
695 A->getOption().getID() == options::OPT_x ||
696 A->getOption().getID() == options::OPT_fembed_bitcode ||
697 (A->getOption().getGroup().isValid() &&
698 A->getOption().getGroup().getID() == options::OPT_W_Group))
701 A->render(Args, ASL);
702 for (const auto &arg : ASL) {
703 StringRef ArgStr(arg);
704 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end());
705 // using \00 to seperate each commandline options.
706 Opts.CmdArgs.push_back('\0');
711 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
712 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument);
713 Opts.XRayInstructionThreshold =
714 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_, 200, Diags);
715 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
716 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
717 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections);
718 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations);
719 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
720 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) {
721 unsigned LinkFlags = llvm::Linker::Flags::None;
722 if (A->getOption().matches(OPT_mlink_cuda_bitcode))
723 LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded |
724 llvm::Linker::Flags::InternalizeLinkedSymbols;
725 Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue()));
727 Opts.SanitizeCoverageType =
728 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags);
729 Opts.SanitizeCoverageIndirectCalls =
730 Args.hasArg(OPT_fsanitize_coverage_indirect_calls);
731 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb);
732 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp);
733 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div);
734 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep);
735 Opts.SanitizeCoverage8bitCounters =
736 Args.hasArg(OPT_fsanitize_coverage_8bit_counters);
737 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc);
738 Opts.SanitizeCoverageTracePCGuard =
739 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard);
740 Opts.SanitizeMemoryTrackOrigins =
741 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
742 Opts.SanitizeMemoryUseAfterDtor =
743 Args.hasArg(OPT_fsanitize_memory_use_after_dtor);
744 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso);
745 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats);
746 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope,
747 OPT_fno_sanitize_address_use_after_scope)) {
748 Opts.SanitizeAddressUseAfterScope =
749 A->getOption().getID() == OPT_fsanitize_address_use_after_scope;
752 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
753 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
754 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
755 StringRef Val = A->getValue();
756 unsigned StackAlignment = Opts.StackAlignment;
757 Val.getAsInteger(10, StackAlignment);
758 Opts.StackAlignment = StackAlignment;
761 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) {
762 StringRef Val = A->getValue();
763 unsigned StackProbeSize = Opts.StackProbeSize;
764 Val.getAsInteger(0, StackProbeSize);
765 Opts.StackProbeSize = StackProbeSize;
768 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
769 StringRef Name = A->getValue();
770 unsigned Method = llvm::StringSwitch<unsigned>(Name)
771 .Case("legacy", CodeGenOptions::Legacy)
772 .Case("non-legacy", CodeGenOptions::NonLegacy)
773 .Case("mixed", CodeGenOptions::Mixed)
776 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
779 Opts.setObjCDispatchMethod(
780 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
785 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false);
787 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
788 StringRef Name = A->getValue();
789 unsigned Model = llvm::StringSwitch<unsigned>(Name)
790 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
791 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
792 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
793 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
796 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
799 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
803 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
804 StringRef Val = A->getValue();
806 Opts.setFPContractMode(CodeGenOptions::FPC_Fast);
807 else if (Val == "on")
808 Opts.setFPContractMode(CodeGenOptions::FPC_On);
809 else if (Val == "off")
810 Opts.setFPContractMode(CodeGenOptions::FPC_Off);
812 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
815 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) {
816 StringRef Val = A->getValue();
818 Opts.FPDenormalMode = "ieee";
819 else if (Val == "preserve-sign")
820 Opts.FPDenormalMode = "preserve-sign";
821 else if (Val == "positive-zero")
822 Opts.FPDenormalMode = "positive-zero";
824 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
827 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
828 if (A->getOption().matches(OPT_fpcc_struct_return)) {
829 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
831 assert(A->getOption().matches(OPT_freg_struct_return));
832 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
836 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
837 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option);
838 bool NeedLocTracking = false;
840 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file);
841 if (!Opts.OptRecordFile.empty())
842 NeedLocTracking = true;
844 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
845 Opts.OptimizationRemarkPattern =
846 GenerateOptimizationRemarkRegex(Diags, Args, A);
847 NeedLocTracking = true;
850 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
851 Opts.OptimizationRemarkMissedPattern =
852 GenerateOptimizationRemarkRegex(Diags, Args, A);
853 NeedLocTracking = true;
856 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
857 Opts.OptimizationRemarkAnalysisPattern =
858 GenerateOptimizationRemarkRegex(Diags, Args, A);
859 NeedLocTracking = true;
862 Opts.DiagnosticsWithHotness =
863 Args.hasArg(options::OPT_fdiagnostics_show_hotness);
864 if (Opts.DiagnosticsWithHotness &&
865 Opts.getProfileUse() == CodeGenOptions::ProfileNone)
866 Diags.Report(diag::warn_drv_fdiagnostics_show_hotness_requires_pgo);
868 // If the user requested to use a sample profile for PGO, then the
869 // backend will need to track source location information so the profile
870 // can be incorporated into the IR.
871 if (!Opts.SampleProfileFile.empty())
872 NeedLocTracking = true;
874 // If the user requested a flag that requires source locations available in
875 // the backend, make sure that the backend tracks source location information.
876 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo)
877 Opts.setDebugInfo(codegenoptions::LocTrackingOnly);
879 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file);
881 // Parse -fsanitize-recover= arguments.
882 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
883 parseSanitizerKinds("-fsanitize-recover=",
884 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
885 Opts.SanitizeRecover);
886 parseSanitizerKinds("-fsanitize-trap=",
887 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags,
890 Opts.CudaGpuBinaryFileNames =
891 Args.getAllArgValues(OPT_fcuda_include_gpubinary);
893 Opts.Backchain = Args.hasArg(OPT_mbackchain);
895 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue(
896 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags);
901 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
903 using namespace options;
904 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
905 Opts.Targets = Args.getAllArgValues(OPT_MT);
906 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
907 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
908 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
909 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
910 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
911 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
912 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes);
913 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
914 Opts.ModuleDependencyOutputDir =
915 Args.getLastArgValue(OPT_module_dependency_dir);
916 if (Args.hasArg(OPT_MV))
917 Opts.OutputFormat = DependencyOutputFormat::NMake;
918 // Add sanitizer blacklists as extra dependencies.
919 // They won't be discovered by the regular preprocessor, so
920 // we let make / ninja to know about this implicit dependency.
921 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry);
922 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
923 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(),
927 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) {
928 // Color diagnostics default to auto ("on" if terminal supports) in the driver
929 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color.
930 // Support both clang's -f[no-]color-diagnostics and gcc's
931 // -f[no-]diagnostics-colors[=never|always|auto].
936 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off;
937 for (Arg *A : Args) {
938 const Option &O = A->getOption();
939 if (O.matches(options::OPT_fcolor_diagnostics) ||
940 O.matches(options::OPT_fdiagnostics_color)) {
941 ShowColors = Colors_On;
942 } else if (O.matches(options::OPT_fno_color_diagnostics) ||
943 O.matches(options::OPT_fno_diagnostics_color)) {
944 ShowColors = Colors_Off;
945 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) {
946 StringRef Value(A->getValue());
947 if (Value == "always")
948 ShowColors = Colors_On;
949 else if (Value == "never")
950 ShowColors = Colors_Off;
951 else if (Value == "auto")
952 ShowColors = Colors_Auto;
955 return ShowColors == Colors_On ||
956 (ShowColors == Colors_Auto &&
957 llvm::sys::Process::StandardErrHasColors());
960 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
961 DiagnosticsEngine *Diags,
962 bool DefaultDiagColor, bool DefaultShowOpt) {
963 using namespace options;
966 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
968 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
969 Opts.DiagnosticSerializationFile = A->getValue();
970 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
971 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
972 Opts.Pedantic = Args.hasArg(OPT_pedantic);
973 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
974 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
975 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor);
976 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
979 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
980 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
981 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths);
982 Opts.ShowOptionNames =
983 Args.hasFlag(OPT_fdiagnostics_show_option,
984 OPT_fno_diagnostics_show_option, DefaultShowOpt);
986 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
988 // Default behavior is to not to show note include stacks.
989 Opts.ShowNoteIncludeStack = false;
990 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
991 OPT_fno_diagnostics_show_note_include_stack))
992 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
993 Opts.ShowNoteIncludeStack = true;
995 StringRef ShowOverloads =
996 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
997 if (ShowOverloads == "best")
998 Opts.setShowOverloads(Ovl_Best);
999 else if (ShowOverloads == "all")
1000 Opts.setShowOverloads(Ovl_All);
1004 Diags->Report(diag::err_drv_invalid_value)
1005 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
1009 StringRef ShowCategory =
1010 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
1011 if (ShowCategory == "none")
1012 Opts.ShowCategories = 0;
1013 else if (ShowCategory == "id")
1014 Opts.ShowCategories = 1;
1015 else if (ShowCategory == "name")
1016 Opts.ShowCategories = 2;
1020 Diags->Report(diag::err_drv_invalid_value)
1021 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
1026 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
1027 if (Format == "clang")
1028 Opts.setFormat(DiagnosticOptions::Clang);
1029 else if (Format == "msvc")
1030 Opts.setFormat(DiagnosticOptions::MSVC);
1031 else if (Format == "msvc-fallback") {
1032 Opts.setFormat(DiagnosticOptions::MSVC);
1033 Opts.CLFallbackMode = true;
1034 } else if (Format == "vi")
1035 Opts.setFormat(DiagnosticOptions::Vi);
1039 Diags->Report(diag::err_drv_invalid_value)
1040 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
1044 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
1045 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
1046 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
1047 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
1048 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
1049 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=",
1050 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ),
1052 if (Args.hasArg(OPT_verify_ignore_unexpected))
1053 DiagMask = DiagnosticLevelMask::All;
1054 Opts.setVerifyIgnoreUnexpected(DiagMask);
1055 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
1056 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
1057 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
1058 Opts.MacroBacktraceLimit =
1059 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
1060 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
1061 Opts.TemplateBacktraceLimit = getLastArgIntValue(
1062 Args, OPT_ftemplate_backtrace_limit,
1063 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
1064 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
1065 Args, OPT_fconstexpr_backtrace_limit,
1066 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
1067 Opts.SpellCheckingLimit = getLastArgIntValue(
1068 Args, OPT_fspell_checking_limit,
1069 DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
1070 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
1071 DiagnosticOptions::DefaultTabStop, Diags);
1072 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
1073 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
1075 Diags->Report(diag::warn_ignoring_ftabstop_value)
1076 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
1078 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
1079 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
1080 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
1085 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
1086 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
1089 /// Parse the argument to the -ftest-module-file-extension
1090 /// command-line argument.
1092 /// \returns true on error, false on success.
1093 static bool parseTestModuleFileExtensionArg(StringRef Arg,
1094 std::string &BlockName,
1095 unsigned &MajorVersion,
1096 unsigned &MinorVersion,
1098 std::string &UserInfo) {
1099 SmallVector<StringRef, 5> Args;
1100 Arg.split(Args, ':', 5);
1101 if (Args.size() < 5)
1104 BlockName = Args[0];
1105 if (Args[1].getAsInteger(10, MajorVersion)) return true;
1106 if (Args[2].getAsInteger(10, MinorVersion)) return true;
1107 if (Args[3].getAsInteger(2, Hashed)) return true;
1108 if (Args.size() > 4)
1113 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
1114 DiagnosticsEngine &Diags,
1115 bool &IsHeaderFile) {
1116 using namespace options;
1117 Opts.ProgramAction = frontend::ParseSyntaxOnly;
1118 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
1119 switch (A->getOption().getID()) {
1121 llvm_unreachable("Invalid option in group!");
1123 Opts.ProgramAction = frontend::ASTDeclList; break;
1125 case OPT_ast_dump_lookups:
1126 Opts.ProgramAction = frontend::ASTDump; break;
1128 Opts.ProgramAction = frontend::ASTPrint; break;
1130 Opts.ProgramAction = frontend::ASTView; break;
1131 case OPT_dump_raw_tokens:
1132 Opts.ProgramAction = frontend::DumpRawTokens; break;
1133 case OPT_dump_tokens:
1134 Opts.ProgramAction = frontend::DumpTokens; break;
1136 Opts.ProgramAction = frontend::EmitAssembly; break;
1137 case OPT_emit_llvm_bc:
1138 Opts.ProgramAction = frontend::EmitBC; break;
1140 Opts.ProgramAction = frontend::EmitHTML; break;
1142 Opts.ProgramAction = frontend::EmitLLVM; break;
1143 case OPT_emit_llvm_only:
1144 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
1145 case OPT_emit_codegen_only:
1146 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
1148 Opts.ProgramAction = frontend::EmitObj; break;
1150 Opts.FixItSuffix = A->getValue();
1153 Opts.ProgramAction = frontend::FixIt; break;
1154 case OPT_emit_module:
1155 Opts.ProgramAction = frontend::GenerateModule; break;
1156 case OPT_emit_module_interface:
1157 Opts.ProgramAction = frontend::GenerateModuleInterface; break;
1159 Opts.ProgramAction = frontend::GeneratePCH; break;
1161 Opts.ProgramAction = frontend::GeneratePTH; break;
1163 Opts.ProgramAction = frontend::InitOnly; break;
1164 case OPT_fsyntax_only:
1165 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
1166 case OPT_module_file_info:
1167 Opts.ProgramAction = frontend::ModuleFileInfo; break;
1168 case OPT_verify_pch:
1169 Opts.ProgramAction = frontend::VerifyPCH; break;
1170 case OPT_print_decl_contexts:
1171 Opts.ProgramAction = frontend::PrintDeclContext; break;
1172 case OPT_print_preamble:
1173 Opts.ProgramAction = frontend::PrintPreamble; break;
1175 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
1176 case OPT_rewrite_macros:
1177 Opts.ProgramAction = frontend::RewriteMacros; break;
1178 case OPT_rewrite_objc:
1179 Opts.ProgramAction = frontend::RewriteObjC; break;
1180 case OPT_rewrite_test:
1181 Opts.ProgramAction = frontend::RewriteTest; break;
1183 Opts.ProgramAction = frontend::RunAnalysis; break;
1185 Opts.ProgramAction = frontend::MigrateSource; break;
1187 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
1191 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
1192 Opts.Plugins.emplace_back(A->getValue(0));
1193 Opts.ProgramAction = frontend::PluginAction;
1194 Opts.ActionName = A->getValue();
1196 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
1197 for (const Arg *AA : Args.filtered(OPT_plugin_arg))
1198 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1));
1200 for (const std::string &Arg :
1201 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) {
1202 std::string BlockName;
1203 unsigned MajorVersion;
1204 unsigned MinorVersion;
1206 std::string UserInfo;
1207 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
1208 MinorVersion, Hashed, UserInfo)) {
1209 Diags.Report(diag::err_test_module_file_extension_format) << Arg;
1214 // Add the testing module file extension.
1215 Opts.ModuleFileExtensions.push_back(
1216 new TestModuleFileExtension(BlockName, MajorVersion, MinorVersion,
1220 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
1221 Opts.CodeCompletionAt =
1222 ParsedSourceLocation::FromString(A->getValue());
1223 if (Opts.CodeCompletionAt.FileName.empty())
1224 Diags.Report(diag::err_drv_invalid_value)
1225 << A->getAsString(Args) << A->getValue();
1227 Opts.DisableFree = Args.hasArg(OPT_disable_free);
1229 Opts.OutputFile = Args.getLastArgValue(OPT_o);
1230 Opts.Plugins = Args.getAllArgValues(OPT_load);
1231 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1232 Opts.ShowHelp = Args.hasArg(OPT_help);
1233 Opts.ShowStats = Args.hasArg(OPT_print_stats);
1234 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1235 Opts.ShowVersion = Args.hasArg(OPT_version);
1236 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1237 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1238 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
1239 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
1240 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
1241 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
1242 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump);
1243 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
1244 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
1245 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
1246 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
1247 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file);
1248 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
1249 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ);
1250 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files);
1251 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp);
1253 Opts.CodeCompleteOpts.IncludeMacros
1254 = Args.hasArg(OPT_code_completion_macros);
1255 Opts.CodeCompleteOpts.IncludeCodePatterns
1256 = Args.hasArg(OPT_code_completion_patterns);
1257 Opts.CodeCompleteOpts.IncludeGlobals
1258 = !Args.hasArg(OPT_no_code_completion_globals);
1259 Opts.CodeCompleteOpts.IncludeBriefComments
1260 = Args.hasArg(OPT_code_completion_brief_comments);
1262 Opts.OverrideRecordLayoutsFile
1263 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
1265 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple));
1266 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ);
1267 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file);
1269 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
1271 OPT_arcmt_migrate)) {
1272 switch (A->getOption().getID()) {
1274 llvm_unreachable("missed a case");
1275 case OPT_arcmt_check:
1276 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
1278 case OPT_arcmt_modify:
1279 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
1281 case OPT_arcmt_migrate:
1282 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
1286 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
1287 Opts.ARCMTMigrateReportOut
1288 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
1289 Opts.ARCMTMigrateEmitARCErrors
1290 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
1292 if (Args.hasArg(OPT_objcmt_migrate_literals))
1293 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
1294 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
1295 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
1296 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
1297 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
1298 if (Args.hasArg(OPT_objcmt_migrate_property))
1299 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
1300 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
1301 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
1302 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
1303 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
1304 if (Args.hasArg(OPT_objcmt_migrate_annotation))
1305 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
1306 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
1307 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
1308 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
1309 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
1310 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
1311 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
1312 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
1313 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
1314 if (Args.hasArg(OPT_objcmt_atomic_property))
1315 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
1316 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
1317 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
1318 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
1319 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
1320 if (Args.hasArg(OPT_objcmt_migrate_all))
1321 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
1323 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
1325 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
1326 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
1327 Diags.Report(diag::err_drv_argument_not_allowed_with)
1328 << "ARC migration" << "ObjC migration";
1331 InputKind DashX = IK_None;
1332 if (const Arg *A = Args.getLastArg(OPT_x)) {
1333 DashX = llvm::StringSwitch<InputKind>(A->getValue())
1335 .Case("cl", IK_OpenCL)
1336 .Case("cuda", IK_CUDA)
1337 .Case("c++", IK_CXX)
1338 .Case("c++-module", IK_CXX)
1339 .Case("objective-c", IK_ObjC)
1340 .Case("objective-c++", IK_ObjCXX)
1341 .Case("cpp-output", IK_PreprocessedC)
1342 .Case("assembler-with-cpp", IK_Asm)
1343 .Case("c++-cpp-output", IK_PreprocessedCXX)
1344 .Case("c++-module-cpp-output", IK_PreprocessedCXX)
1345 .Case("cuda-cpp-output", IK_PreprocessedCuda)
1346 .Case("objective-c-cpp-output", IK_PreprocessedObjC)
1347 .Case("objc-cpp-output", IK_PreprocessedObjC)
1348 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
1349 .Case("objc++-cpp-output", IK_PreprocessedObjCXX)
1350 .Case("c-header", IK_C)
1351 .Case("cl-header", IK_OpenCL)
1352 .Case("objective-c-header", IK_ObjC)
1353 .Case("c++-header", IK_CXX)
1354 .Case("objective-c++-header", IK_ObjCXX)
1355 .Cases("ast", "pcm", IK_AST)
1356 .Case("ir", IK_LLVM_IR)
1357 .Case("renderscript", IK_RenderScript)
1359 if (DashX == IK_None)
1360 Diags.Report(diag::err_drv_invalid_value)
1361 << A->getAsString(Args) << A->getValue();
1362 IsHeaderFile = llvm::StringSwitch<bool>(A->getValue())
1363 .Case("c-header", true)
1364 .Case("cl-header", true)
1365 .Case("objective-c-header", true)
1366 .Case("c++-header", true)
1367 .Case("objective-c++-header", true)
1371 // '-' is the default input if none is given.
1372 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1373 Opts.Inputs.clear();
1375 Inputs.push_back("-");
1376 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1377 InputKind IK = DashX;
1378 if (IK == IK_None) {
1379 IK = FrontendOptions::getInputKindForExtension(
1380 StringRef(Inputs[i]).rsplit('.').second);
1381 // FIXME: Remove this hack.
1385 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK);
1391 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1393 std::string ClangExecutable =
1394 llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
1395 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable);
1397 // Compute the path to the resource directory.
1398 StringRef ClangResourceDir(CLANG_RESOURCE_DIR);
1399 SmallString<128> P(Dir);
1400 if (ClangResourceDir != "")
1401 llvm::sys::path::append(P, ClangResourceDir);
1403 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX,
1404 "clang", CLANG_VERSION_STRING);
1409 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
1410 using namespace options;
1411 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1412 Opts.Verbose = Args.hasArg(OPT_v);
1413 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1414 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
1415 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1416 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
1417 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
1418 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1419 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path);
1420 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
1421 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path))
1422 Opts.AddPrebuiltModulePath(A->getValue());
1423 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
1424 Opts.ModulesValidateDiagnosticOptions =
1425 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation);
1426 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps);
1427 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd);
1428 Opts.ModuleCachePruneInterval =
1429 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
1430 Opts.ModuleCachePruneAfter =
1431 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
1432 Opts.ModulesValidateOncePerBuildSession =
1433 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
1434 Opts.BuildSessionTimestamp =
1435 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
1436 Opts.ModulesValidateSystemHeaders =
1437 Args.hasArg(OPT_fmodules_validate_system_headers);
1438 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ))
1439 Opts.ModuleFormat = A->getValue();
1441 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) {
1442 StringRef MacroDef = A->getValue();
1443 Opts.ModulesIgnoreMacros.insert(
1444 llvm::CachedHashString(MacroDef.split('=').first));
1447 // Add -I..., -F..., and -index-header-map options in order.
1448 bool IsIndexHeaderMap = false;
1449 bool IsSysrootSpecified =
1450 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot);
1451 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) {
1452 if (A->getOption().matches(OPT_index_header_map)) {
1453 // -index-header-map applies to the next -I or -F.
1454 IsIndexHeaderMap = true;
1458 frontend::IncludeDirGroup Group =
1459 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled;
1461 bool IsFramework = A->getOption().matches(OPT_F);
1462 std::string Path = A->getValue();
1464 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') {
1465 SmallString<32> Buffer;
1466 llvm::sys::path::append(Buffer, Opts.Sysroot,
1467 llvm::StringRef(A->getValue()).substr(1));
1468 Path = Buffer.str();
1471 Opts.AddPath(Path, Group, IsFramework,
1472 /*IgnoreSysroot*/ true);
1473 IsIndexHeaderMap = false;
1476 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
1477 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
1479 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) {
1480 if (A->getOption().matches(OPT_iprefix))
1481 Prefix = A->getValue();
1482 else if (A->getOption().matches(OPT_iwithprefix))
1483 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true);
1485 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true);
1488 for (const Arg *A : Args.filtered(OPT_idirafter))
1489 Opts.AddPath(A->getValue(), frontend::After, false, true);
1490 for (const Arg *A : Args.filtered(OPT_iquote))
1491 Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
1492 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
1493 Opts.AddPath(A->getValue(), frontend::System, false,
1494 !A->getOption().matches(OPT_iwithsysroot));
1495 for (const Arg *A : Args.filtered(OPT_iframework))
1496 Opts.AddPath(A->getValue(), frontend::System, true, true);
1498 // Add the paths for the various language specific isystem flags.
1499 for (const Arg *A : Args.filtered(OPT_c_isystem))
1500 Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
1501 for (const Arg *A : Args.filtered(OPT_cxx_isystem))
1502 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
1503 for (const Arg *A : Args.filtered(OPT_objc_isystem))
1504 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
1505 for (const Arg *A : Args.filtered(OPT_objcxx_isystem))
1506 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
1508 // Add the internal paths from a driver that detects standard include paths.
1510 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) {
1511 frontend::IncludeDirGroup Group = frontend::System;
1512 if (A->getOption().matches(OPT_internal_externc_isystem))
1513 Group = frontend::ExternCSystem;
1514 Opts.AddPath(A->getValue(), Group, false, true);
1517 // Add the path prefixes which are implicitly treated as being system headers.
1519 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix))
1520 Opts.AddSystemHeaderPrefix(
1521 A->getValue(), A->getOption().matches(OPT_system_header_prefix));
1523 for (const Arg *A : Args.filtered(OPT_ivfsoverlay))
1524 Opts.AddVFSOverlayFile(A->getValue());
1527 static bool isOpenCL(LangStandard::Kind LangStd) {
1528 return LangStd == LangStandard::lang_opencl ||
1529 LangStd == LangStandard::lang_opencl11 ||
1530 LangStd == LangStandard::lang_opencl12 ||
1531 LangStd == LangStandard::lang_opencl20;
1534 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
1535 const llvm::Triple &T,
1536 PreprocessorOptions &PPOpts,
1537 LangStandard::Kind LangStd) {
1538 // Set some properties which depend solely on the input kind; it would be nice
1539 // to move these to the language standard, and have the driver resolve the
1540 // input kind + language standard.
1542 Opts.AsmPreprocessor = 1;
1543 } else if (IK == IK_ObjC ||
1545 IK == IK_PreprocessedObjC ||
1546 IK == IK_PreprocessedObjCXX) {
1547 Opts.ObjC1 = Opts.ObjC2 = 1;
1550 if (LangStd == LangStandard::lang_unspecified) {
1551 // Based on the base language, pick one.
1556 llvm_unreachable("Invalid input kind!");
1558 LangStd = LangStandard::lang_opencl;
1561 case IK_PreprocessedCuda:
1562 LangStd = LangStandard::lang_cuda;
1566 case IK_PreprocessedC:
1567 // The PS4 uses C99 as the default C standard.
1569 LangStd = LangStandard::lang_gnu99;
1571 LangStd = LangStandard::lang_gnu11;
1574 case IK_PreprocessedObjC:
1575 LangStd = LangStandard::lang_gnu11;
1578 case IK_PreprocessedCXX:
1580 case IK_PreprocessedObjCXX:
1581 LangStd = LangStandard::lang_gnucxx98;
1583 case IK_RenderScript:
1584 LangStd = LangStandard::lang_c99;
1589 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1590 Opts.LineComment = Std.hasLineComments();
1591 Opts.C99 = Std.isC99();
1592 Opts.C11 = Std.isC11();
1593 Opts.CPlusPlus = Std.isCPlusPlus();
1594 Opts.CPlusPlus11 = Std.isCPlusPlus11();
1595 Opts.CPlusPlus14 = Std.isCPlusPlus14();
1596 Opts.CPlusPlus1z = Std.isCPlusPlus1z();
1597 Opts.Digraphs = Std.hasDigraphs();
1598 Opts.GNUMode = Std.isGNUMode();
1599 Opts.GNUInline = Std.isC89();
1600 Opts.HexFloats = Std.hasHexFloats();
1601 Opts.ImplicitInt = Std.hasImplicitInt();
1603 // Set OpenCL Version.
1604 Opts.OpenCL = isOpenCL(LangStd) || IK == IK_OpenCL;
1605 if (LangStd == LangStandard::lang_opencl)
1606 Opts.OpenCLVersion = 100;
1607 else if (LangStd == LangStandard::lang_opencl11)
1608 Opts.OpenCLVersion = 110;
1609 else if (LangStd == LangStandard::lang_opencl12)
1610 Opts.OpenCLVersion = 120;
1611 else if (LangStd == LangStandard::lang_opencl20)
1612 Opts.OpenCLVersion = 200;
1614 // OpenCL has some additional defaults.
1618 Opts.CXXOperatorNames = 1;
1619 Opts.LaxVectorConversions = 0;
1620 Opts.DefaultFPContract = 1;
1621 Opts.NativeHalfType = 1;
1622 Opts.NativeHalfArgsAndReturns = 1;
1623 // Include default header file for OpenCL.
1624 if (Opts.IncludeDefaultHeader) {
1625 PPOpts.Includes.push_back("opencl-c.h");
1629 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda ||
1630 LangStd == LangStandard::lang_cuda;
1632 Opts.RenderScript = IK == IK_RenderScript;
1633 if (Opts.RenderScript) {
1634 Opts.NativeHalfType = 1;
1635 Opts.NativeHalfArgsAndReturns = 1;
1638 // OpenCL and C++ both have bool, true, false keywords.
1639 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1641 // OpenCL has half keyword
1642 Opts.Half = Opts.OpenCL;
1644 // C++ has wchar_t keyword.
1645 Opts.WChar = Opts.CPlusPlus;
1647 Opts.GNUKeywords = Opts.GNUMode;
1648 Opts.CXXOperatorNames = Opts.CPlusPlus;
1650 Opts.AlignedAllocation = Opts.CPlusPlus1z;
1652 Opts.DollarIdents = !Opts.AsmPreprocessor;
1655 /// Attempt to parse a visibility value out of the given argument.
1656 static Visibility parseVisibility(Arg *arg, ArgList &args,
1657 DiagnosticsEngine &diags) {
1658 StringRef value = arg->getValue();
1659 if (value == "default") {
1660 return DefaultVisibility;
1661 } else if (value == "hidden" || value == "internal") {
1662 return HiddenVisibility;
1663 } else if (value == "protected") {
1664 // FIXME: diagnose if target does not support protected visibility
1665 return ProtectedVisibility;
1668 diags.Report(diag::err_drv_invalid_value)
1669 << arg->getAsString(args) << value;
1670 return DefaultVisibility;
1673 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
1674 const TargetOptions &TargetOpts,
1675 PreprocessorOptions &PPOpts,
1676 DiagnosticsEngine &Diags) {
1677 // FIXME: Cleanup per-file based stuff.
1678 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1679 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
1680 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1681 #define LANGSTANDARD(id, name, desc, features) \
1682 .Case(name, LangStandard::lang_##id)
1683 #define LANGSTANDARD_ALIAS(id, alias) \
1684 .Case(alias, LangStandard::lang_##id)
1685 #include "clang/Frontend/LangStandards.def"
1686 .Default(LangStandard::lang_unspecified);
1687 if (LangStd == LangStandard::lang_unspecified)
1688 Diags.Report(diag::err_drv_invalid_value)
1689 << A->getAsString(Args) << A->getValue();
1691 // Valid standard, check to make sure language and standard are
1693 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1697 case IK_PreprocessedC:
1698 case IK_PreprocessedObjC:
1699 if (!(Std.isC89() || Std.isC99()))
1700 Diags.Report(diag::err_drv_argument_not_allowed_with)
1701 << A->getAsString(Args) << "C/ObjC";
1705 case IK_PreprocessedCXX:
1706 case IK_PreprocessedObjCXX:
1707 if (!Std.isCPlusPlus())
1708 Diags.Report(diag::err_drv_argument_not_allowed_with)
1709 << A->getAsString(Args) << "C++/ObjC++";
1712 if (!isOpenCL(LangStd))
1713 Diags.Report(diag::err_drv_argument_not_allowed_with)
1714 << A->getAsString(Args) << "OpenCL";
1717 case IK_PreprocessedCuda:
1718 if (!Std.isCPlusPlus())
1719 Diags.Report(diag::err_drv_argument_not_allowed_with)
1720 << A->getAsString(Args) << "CUDA";
1728 // -cl-std only applies for OpenCL language standards.
1729 // Override the -std option in this case.
1730 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
1731 LangStandard::Kind OpenCLLangStd
1732 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1733 .Cases("cl", "CL", LangStandard::lang_opencl)
1734 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11)
1735 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12)
1736 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20)
1737 .Default(LangStandard::lang_unspecified);
1739 if (OpenCLLangStd == LangStandard::lang_unspecified) {
1740 Diags.Report(diag::err_drv_invalid_value)
1741 << A->getAsString(Args) << A->getValue();
1744 LangStd = OpenCLLangStd;
1747 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header);
1749 llvm::Triple T(TargetOpts.Triple);
1750 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd);
1752 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0.
1753 // This option should be deprecated for CL > 1.0 because
1754 // this option was added for compatibility with OpenCL 1.0.
1755 if (Args.getLastArg(OPT_cl_strict_aliasing)
1756 && Opts.OpenCLVersion > 100) {
1757 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) +
1759 llvm::to_string((Opts.OpenCLVersion % 100) / 10);
1760 Diags.Report(diag::warn_option_invalid_ocl_version)
1761 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args);
1764 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1765 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1766 // while a subset (the non-C++ GNU keywords) is provided by GCC's
1767 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1768 // name, as it doesn't seem a useful distinction.
1769 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
1772 if (Args.hasArg(OPT_fno_operator_names))
1773 Opts.CXXOperatorNames = 0;
1775 if (Args.hasArg(OPT_fcuda_is_device))
1776 Opts.CUDAIsDevice = 1;
1778 if (Args.hasArg(OPT_fcuda_allow_variadic_functions))
1779 Opts.CUDAAllowVariadicFunctions = 1;
1781 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr))
1782 Opts.CUDAHostDeviceConstexpr = 0;
1784 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero))
1785 Opts.CUDADeviceFlushDenormalsToZero = 1;
1787 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals))
1788 Opts.CUDADeviceApproxTranscendentals = 1;
1791 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
1792 StringRef value = arg->getValue();
1793 if (Opts.ObjCRuntime.tryParse(value))
1794 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
1797 if (Args.hasArg(OPT_fobjc_gc_only))
1798 Opts.setGC(LangOptions::GCOnly);
1799 else if (Args.hasArg(OPT_fobjc_gc))
1800 Opts.setGC(LangOptions::HybridGC);
1801 else if (Args.hasArg(OPT_fobjc_arc)) {
1802 Opts.ObjCAutoRefCount = 1;
1803 if (!Opts.ObjCRuntime.allowsARC())
1804 Diags.Report(diag::err_arc_unsupported_on_runtime);
1807 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
1808 // whether the feature is actually enabled. This is predominantly
1809 // determined by -fobjc-runtime, but we allow it to be overridden
1810 // from the command line for testing purposes.
1811 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
1812 Opts.ObjCWeakRuntime = 1;
1814 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
1816 // ObjCWeak determines whether __weak is actually enabled.
1817 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
1818 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) {
1819 if (!weakArg->getOption().matches(OPT_fobjc_weak)) {
1820 assert(!Opts.ObjCWeak);
1821 } else if (Opts.getGC() != LangOptions::NonGC) {
1822 Diags.Report(diag::err_objc_weak_with_gc);
1823 } else if (!Opts.ObjCWeakRuntime) {
1824 Diags.Report(diag::err_objc_weak_unsupported);
1828 } else if (Opts.ObjCAutoRefCount) {
1829 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
1832 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
1833 Opts.ObjCInferRelatedResultType = 0;
1835 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
1836 Opts.ObjCSubscriptingLegacyRuntime =
1837 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
1840 if (Args.hasArg(OPT_fgnu89_inline)) {
1842 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline"
1848 if (Args.hasArg(OPT_fapple_kext)) {
1849 if (!Opts.CPlusPlus)
1850 Diags.Report(diag::warn_c_kext);
1855 if (Args.hasArg(OPT_print_ivar_layout))
1856 Opts.ObjCGCBitmapPrint = 1;
1857 if (Args.hasArg(OPT_fno_constant_cfstrings))
1858 Opts.NoConstantCFStrings = 1;
1860 if (Args.hasArg(OPT_faltivec))
1863 if (Args.hasArg(OPT_fzvector))
1866 if (Args.hasArg(OPT_pthread))
1867 Opts.POSIXThreads = 1;
1869 // The value-visibility mode defaults to "default".
1870 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
1871 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
1873 Opts.setValueVisibilityMode(DefaultVisibility);
1876 // The type-visibility mode defaults to the value-visibility mode.
1877 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
1878 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
1880 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
1883 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
1884 Opts.InlineVisibilityHidden = 1;
1886 if (Args.hasArg(OPT_ftrapv)) {
1887 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
1888 // Set the handler, if one is specified.
1889 Opts.OverflowHandler =
1890 Args.getLastArgValue(OPT_ftrapv_handler);
1892 else if (Args.hasArg(OPT_fwrapv))
1893 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
1895 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
1896 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
1897 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
1898 Opts.MSCompatibilityVersion = 0;
1899 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) {
1901 if (VT.tryParse(A->getValue()))
1902 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
1904 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
1905 VT.getMinor().getValueOr(0) * 100000 +
1906 VT.getSubminor().getValueOr(0);
1909 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1910 // is specified, or -std is set to a conforming mode.
1911 // Trigraphs are disabled by default in c++1z onwards.
1912 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z;
1914 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs);
1916 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
1917 OPT_fno_dollars_in_identifiers,
1919 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
1920 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags);
1921 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
1922 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
1923 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
1925 if (Args.hasArg(OPT_fno_lax_vector_conversions))
1926 Opts.LaxVectorConversions = 0;
1927 if (Args.hasArg(OPT_fno_threadsafe_statics))
1928 Opts.ThreadsafeStatics = 0;
1929 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
1930 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
1931 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
1932 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
1933 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind);
1934 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
1936 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti);
1937 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
1938 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL
1939 && Opts.OpenCLVersion >= 200);
1940 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
1941 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts);
1942 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts);
1943 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS;
1944 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse);
1945 Opts.ModulesDeclUse =
1946 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
1947 Opts.ModulesLocalVisibility =
1948 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS;
1949 Opts.ModulesSearchAll = Opts.Modules &&
1950 !Args.hasArg(OPT_fno_modules_search_all) &&
1951 Args.hasArg(OPT_fmodules_search_all);
1952 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
1953 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules);
1954 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
1955 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
1956 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false);
1957 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
1958 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
1959 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
1960 if (!Opts.NoBuiltin)
1961 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
1962 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
1963 Opts.RelaxedTemplateTemplateArgs =
1964 Args.hasArg(OPT_frelaxed_template_template_args);
1965 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation);
1966 Opts.AlignedAllocation =
1967 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation,
1968 Opts.AlignedAllocation);
1969 Opts.NewAlignOverride =
1970 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags);
1971 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) {
1972 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ);
1973 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args)
1975 Opts.NewAlignOverride = 0;
1977 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts);
1978 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
1979 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
1980 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
1981 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
1982 Opts.InstantiationDepth =
1983 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags);
1985 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
1986 Opts.ConstexprCallDepth =
1987 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
1988 Opts.ConstexprStepLimit =
1989 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
1990 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
1991 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
1992 Opts.NumLargeByValueCopy =
1993 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
1994 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
1995 Opts.ObjCConstantStringClass =
1996 Args.getLastArgValue(OPT_fconstant_string_class);
1997 Opts.ObjCDefaultSynthProperties =
1998 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
1999 Opts.EncodeExtendedBlockSig =
2000 Args.hasArg(OPT_fencode_extended_block_signature);
2001 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
2002 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
2003 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags);
2004 Opts.AlignDouble = Args.hasArg(OPT_malign_double);
2005 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
2006 Opts.PIE = Args.hasArg(OPT_pic_is_pie);
2007 Opts.Static = Args.hasArg(OPT_static_define);
2008 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
2009 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
2010 || Args.hasArg(OPT_fdump_record_layouts);
2011 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
2012 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
2013 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
2014 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
2015 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
2016 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
2017 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
2018 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
2019 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
2020 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
2021 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
2022 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
2023 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ);
2024 Opts.AppExt = Args.hasArg(OPT_fapplication_extension);
2025 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature);
2026 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end());
2027 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type);
2028 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns);
2029 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns
2031 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns)
2032 | Opts.NativeHalfArgsAndReturns;
2033 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm);
2035 // __declspec is enabled by default for the PS4 by the driver, and also
2036 // enabled for Microsoft Extensions or Borland Extensions, here.
2038 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a
2039 // CUDA extension. However, it is required for supporting
2040 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has
2041 // been rewritten in terms of something more generic, remove the Opts.CUDA
2043 Opts.DeclSpecKeyword =
2044 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec,
2045 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA));
2047 // For now, we only support local submodule visibility in C++ (because we
2048 // heavily depend on the ODR for merging redefinitions).
2049 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus)
2050 Diags.Report(diag::err_drv_argument_not_allowed_with)
2051 << "-fmodules-local-submodule-visibility" << "C";
2053 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
2054 switch (llvm::StringSwitch<unsigned>(A->getValue())
2055 .Case("target", LangOptions::ASMM_Target)
2056 .Case("no", LangOptions::ASMM_Off)
2057 .Case("yes", LangOptions::ASMM_On)
2060 Diags.Report(diag::err_drv_invalid_value)
2061 << "-faddress-space-map-mangling=" << A->getValue();
2063 case LangOptions::ASMM_Target:
2064 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
2066 case LangOptions::ASMM_On:
2067 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
2069 case LangOptions::ASMM_Off:
2070 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
2075 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
2076 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
2077 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
2080 LangOptions::PPTMK_FullGeneralitySingleInheritance)
2082 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
2084 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
2085 .Default(LangOptions::PPTMK_BestCase);
2086 if (InheritanceModel == LangOptions::PPTMK_BestCase)
2087 Diags.Report(diag::err_drv_invalid_value)
2088 << "-fms-memptr-rep=" << A->getValue();
2090 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
2093 // Check for MS default calling conventions being specified.
2094 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) {
2095 LangOptions::DefaultCallingConvention DefaultCC =
2096 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(
2098 .Case("cdecl", LangOptions::DCC_CDecl)
2099 .Case("fastcall", LangOptions::DCC_FastCall)
2100 .Case("stdcall", LangOptions::DCC_StdCall)
2101 .Case("vectorcall", LangOptions::DCC_VectorCall)
2102 .Default(LangOptions::DCC_None);
2103 if (DefaultCC == LangOptions::DCC_None)
2104 Diags.Report(diag::err_drv_invalid_value)
2105 << "-fdefault-calling-conv=" << A->getValue();
2107 llvm::Triple T(TargetOpts.Triple);
2108 llvm::Triple::ArchType Arch = T.getArch();
2109 bool emitError = (DefaultCC == LangOptions::DCC_FastCall ||
2110 DefaultCC == LangOptions::DCC_StdCall) &&
2111 Arch != llvm::Triple::x86;
2112 emitError |= DefaultCC == LangOptions::DCC_VectorCall &&
2113 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64);
2115 Diags.Report(diag::err_drv_argument_not_allowed_with)
2116 << A->getSpelling() << T.getTriple();
2118 Opts.setDefaultCallingConv(DefaultCC);
2122 if (Arg *A = Args.getLastArg(OPT_mrtd)) {
2123 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None)
2124 Diags.Report(diag::err_drv_argument_not_allowed_with)
2125 << A->getSpelling() << "-fdefault-calling-conv";
2127 llvm::Triple T(TargetOpts.Triple);
2128 if (T.getArch() != llvm::Triple::x86)
2129 Diags.Report(diag::err_drv_argument_not_allowed_with)
2130 << A->getSpelling() << T.getTriple();
2132 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall);
2136 // Check if -fopenmp is specified.
2137 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0;
2139 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls);
2140 Opts.OpenMPIsDevice =
2141 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device);
2145 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags);
2147 Opts.OpenMP = Version;
2148 // Provide diagnostic when a given target is not expected to be an OpenMP
2150 if (!Opts.OpenMPIsDevice) {
2151 switch (T.getArch()) {
2154 // Add unsupported host targets here:
2155 case llvm::Triple::nvptx:
2156 case llvm::Triple::nvptx64:
2157 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported)
2158 << TargetOpts.Triple;
2164 // Get the OpenMP target triples if any.
2165 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) {
2167 for (unsigned i = 0; i < A->getNumValues(); ++i) {
2168 llvm::Triple TT(A->getValue(i));
2170 if (TT.getArch() == llvm::Triple::UnknownArch)
2171 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i);
2173 Opts.OMPTargetTriples.push_back(TT);
2177 // Get OpenMP host file path if any and report if a non existent file is
2179 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) {
2180 Opts.OMPHostIRFile = A->getValue();
2181 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile))
2182 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found)
2183 << Opts.OMPHostIRFile;
2186 // Record whether the __DEPRECATED define was requested.
2187 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
2188 OPT_fno_deprecated_macro,
2191 // FIXME: Eliminate this dependency.
2192 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
2193 OptSize = getOptimizationLevelSize(Args);
2194 Opts.Optimize = Opt != 0;
2195 Opts.OptimizeSize = OptSize != 0;
2197 // This is the __NO_INLINE__ define, which just depends on things like the
2198 // optimization level and -fno-inline, not actually whether the backend has
2199 // inlining enabled.
2200 Opts.NoInlineDefine = !Opts.Optimize;
2201 if (Arg *InlineArg = Args.getLastArg(
2202 options::OPT_finline_functions, options::OPT_finline_hint_functions,
2203 options::OPT_fno_inline_functions, options::OPT_fno_inline))
2204 if (InlineArg->getOption().matches(options::OPT_fno_inline))
2205 Opts.NoInlineDefine = true;
2207 Opts.FastMath = Args.hasArg(OPT_ffast_math) ||
2208 Args.hasArg(OPT_cl_fast_relaxed_math);
2209 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) ||
2210 Args.hasArg(OPT_cl_finite_math_only) ||
2211 Args.hasArg(OPT_cl_fast_relaxed_math);
2212 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
2213 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
2214 Args.hasArg(OPT_cl_fast_relaxed_math);
2216 Opts.RetainCommentsFromSystemHeaders =
2217 Args.hasArg(OPT_fretain_comments_from_system_headers);
2219 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
2222 Diags.Report(diag::err_drv_invalid_value)
2223 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
2225 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
2226 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
2227 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
2228 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
2231 // Parse -fsanitize= arguments.
2232 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
2233 Diags, Opts.Sanitize);
2234 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here.
2235 Opts.SanitizeAddressFieldPadding =
2236 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags);
2237 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist);
2240 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
2241 FileManager &FileMgr,
2242 DiagnosticsEngine &Diags) {
2243 using namespace options;
2244 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
2245 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
2246 if (const Arg *A = Args.getLastArg(OPT_token_cache))
2247 Opts.TokenCache = A->getValue();
2249 Opts.TokenCache = Opts.ImplicitPTHInclude;
2250 Opts.UsePredefines = !Args.hasArg(OPT_undef);
2251 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
2252 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
2254 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
2255 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl))
2256 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
2258 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
2259 StringRef Value(A->getValue());
2260 size_t Comma = Value.find(',');
2262 unsigned EndOfLine = 0;
2264 if (Comma == StringRef::npos ||
2265 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
2266 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
2267 Diags.Report(diag::err_drv_preamble_format);
2269 Opts.PrecompiledPreambleBytes.first = Bytes;
2270 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
2274 // Add macros from the command line.
2275 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) {
2276 if (A->getOption().matches(OPT_D))
2277 Opts.addMacroDef(A->getValue());
2279 Opts.addMacroUndef(A->getValue());
2282 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
2284 // Add the ordered list of -includes.
2285 for (const Arg *A : Args.filtered(OPT_include))
2286 Opts.Includes.emplace_back(A->getValue());
2288 for (const Arg *A : Args.filtered(OPT_chain_include))
2289 Opts.ChainedIncludes.emplace_back(A->getValue());
2291 for (const Arg *A : Args.filtered(OPT_remap_file)) {
2292 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
2294 if (Split.second.empty()) {
2295 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
2299 Opts.addRemappedFile(Split.first, Split.second);
2302 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
2303 StringRef Name = A->getValue();
2304 unsigned Library = llvm::StringSwitch<unsigned>(Name)
2305 .Case("libc++", ARCXX_libcxx)
2306 .Case("libstdc++", ARCXX_libstdcxx)
2307 .Case("none", ARCXX_nolib)
2310 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
2312 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
2316 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
2318 frontend::ActionKind Action) {
2319 using namespace options;
2322 case frontend::ASTDeclList:
2323 case frontend::ASTDump:
2324 case frontend::ASTPrint:
2325 case frontend::ASTView:
2326 case frontend::EmitAssembly:
2327 case frontend::EmitBC:
2328 case frontend::EmitHTML:
2329 case frontend::EmitLLVM:
2330 case frontend::EmitLLVMOnly:
2331 case frontend::EmitCodeGenOnly:
2332 case frontend::EmitObj:
2333 case frontend::FixIt:
2334 case frontend::GenerateModule:
2335 case frontend::GenerateModuleInterface:
2336 case frontend::GeneratePCH:
2337 case frontend::GeneratePTH:
2338 case frontend::ParseSyntaxOnly:
2339 case frontend::ModuleFileInfo:
2340 case frontend::VerifyPCH:
2341 case frontend::PluginAction:
2342 case frontend::PrintDeclContext:
2343 case frontend::RewriteObjC:
2344 case frontend::RewriteTest:
2345 case frontend::RunAnalysis:
2346 case frontend::MigrateSource:
2350 case frontend::DumpRawTokens:
2351 case frontend::DumpTokens:
2352 case frontend::InitOnly:
2353 case frontend::PrintPreamble:
2354 case frontend::PrintPreprocessedInput:
2355 case frontend::RewriteMacros:
2356 case frontend::RunPreprocessorOnly:
2357 Opts.ShowCPP = !Args.hasArg(OPT_dM);
2361 Opts.ShowComments = Args.hasArg(OPT_C);
2362 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
2363 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
2364 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
2365 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI);
2366 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
2367 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives);
2370 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args,
2371 DiagnosticsEngine &Diags) {
2372 using namespace options;
2373 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
2374 if (Arg *A = Args.getLastArg(OPT_meabi)) {
2375 StringRef Value = A->getValue();
2376 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value)
2377 .Case("default", llvm::EABI::Default)
2378 .Case("4", llvm::EABI::EABI4)
2379 .Case("5", llvm::EABI::EABI5)
2380 .Case("gnu", llvm::EABI::GNU)
2381 .Default(llvm::EABI::Unknown);
2382 if (EABIVersion == llvm::EABI::Unknown)
2383 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
2386 Opts.EABIVersion = Value;
2388 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
2389 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
2390 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
2391 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
2392 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
2393 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ);
2394 // Use the default target triple if unspecified.
2395 if (Opts.Triple.empty())
2396 Opts.Triple = llvm::sys::getDefaultTargetTriple();
2397 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ);
2400 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
2401 const char *const *ArgBegin,
2402 const char *const *ArgEnd,
2403 DiagnosticsEngine &Diags) {
2404 bool Success = true;
2406 // Parse the arguments.
2407 std::unique_ptr<OptTable> Opts(createDriverOptTable());
2408 const unsigned IncludedFlagsBitmask = options::CC1Option;
2409 unsigned MissingArgIndex, MissingArgCount;
2411 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex,
2412 MissingArgCount, IncludedFlagsBitmask);
2413 LangOptions &LangOpts = *Res.getLangOpts();
2415 // Check for missing argument error.
2416 if (MissingArgCount) {
2417 Diags.Report(diag::err_drv_missing_argument)
2418 << Args.getArgString(MissingArgIndex) << MissingArgCount;
2422 // Issue errors on unknown arguments.
2423 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) {
2424 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args);
2428 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
2429 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args);
2430 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args);
2432 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags,
2433 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/);
2434 ParseCommentArgs(LangOpts.CommentOpts, Args);
2435 ParseFileSystemArgs(Res.getFileSystemOpts(), Args);
2436 // FIXME: We shouldn't have to pass the DashX option around here
2437 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags,
2438 LangOpts.IsHeaderFile);
2439 ParseTargetArgs(Res.getTargetOpts(), Args, Diags);
2440 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
2441 Res.getTargetOpts());
2442 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args);
2443 if (DashX == IK_AST || DashX == IK_LLVM_IR) {
2444 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
2445 // PassManager in BackendUtil.cpp. They need to be initializd no matter
2446 // what the input type is.
2447 if (Args.hasArg(OPT_fobjc_arc))
2448 LangOpts.ObjCAutoRefCount = 1;
2449 // PIClevel and PIELevel are needed during code generation and this should be
2450 // set regardless of the input type.
2451 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
2452 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie);
2453 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
2454 Diags, LangOpts.Sanitize);
2456 // Other LangOpts are only initialzed when the input is not AST or LLVM IR.
2457 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(),
2458 Res.getPreprocessorOpts(), Diags);
2459 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
2460 LangOpts.ObjCExceptions = 1;
2463 if (LangOpts.CUDA) {
2464 // During CUDA device-side compilation, the aux triple is the
2465 // triple used for host compilation.
2466 if (LangOpts.CUDAIsDevice)
2467 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
2469 // Set default FP_CONTRACT to FAST.
2470 if (!Args.hasArg(OPT_ffp_contract))
2471 Res.getCodeGenOpts().setFPContractMode(CodeGenOptions::FPC_Fast);
2474 // FIXME: Override value name discarding when asan or msan is used because the
2475 // backend passes depend on the name of the alloca in order to print out
2477 Res.getCodeGenOpts().DiscardValueNames &=
2478 !LangOpts.Sanitize.has(SanitizerKind::Address) &&
2479 !LangOpts.Sanitize.has(SanitizerKind::Memory);
2481 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of
2482 // PCH file and find the original header name. Remove the need to do that in
2483 // ParsePreprocessorArgs and remove the FileManager
2484 // parameters from the function and the "FileManager.h" #include.
2485 FileManager FileMgr(Res.getFileSystemOpts());
2486 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags);
2487 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args,
2488 Res.getFrontendOpts().ProgramAction);
2490 // Turn on -Wspir-compat for SPIR target.
2491 llvm::Triple T(Res.getTargetOpts().Triple);
2492 auto Arch = T.getArch();
2493 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) {
2494 Res.getDiagnosticOpts().Warnings.push_back("spir-compat");
2499 std::string CompilerInvocation::getModuleHash() const {
2500 // Note: For QoI reasons, the things we use as a hash here should all be
2501 // dumped via the -module-info flag.
2502 using llvm::hash_code;
2503 using llvm::hash_value;
2504 using llvm::hash_combine;
2506 // Start the signature with the compiler version.
2507 // FIXME: We'd rather use something more cryptographically sound than
2508 // CityHash, but this will do for now.
2509 hash_code code = hash_value(getClangFullRepositoryVersion());
2511 // Extend the signature with the language options
2512 #define LANGOPT(Name, Bits, Default, Description) \
2513 code = hash_combine(code, LangOpts->Name);
2514 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
2515 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
2516 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
2517 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
2518 #include "clang/Basic/LangOptions.def"
2520 for (StringRef Feature : LangOpts->ModuleFeatures)
2521 code = hash_combine(code, Feature);
2523 // Extend the signature with the target options.
2524 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
2526 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i)
2527 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]);
2529 // Extend the signature with preprocessor options.
2530 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
2531 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
2532 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
2534 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator
2535 I = getPreprocessorOpts().Macros.begin(),
2536 IEnd = getPreprocessorOpts().Macros.end();
2538 // If we're supposed to ignore this macro for the purposes of modules,
2539 // don't put it into the hash.
2540 if (!hsOpts.ModulesIgnoreMacros.empty()) {
2541 // Check whether we're ignoring this macro.
2542 StringRef MacroDef = I->first;
2543 if (hsOpts.ModulesIgnoreMacros.count(
2544 llvm::CachedHashString(MacroDef.split('=').first)))
2548 code = hash_combine(code, I->first, I->second);
2551 // Extend the signature with the sysroot and other header search options.
2552 code = hash_combine(code, hsOpts.Sysroot,
2553 hsOpts.ModuleFormat,
2554 hsOpts.UseDebugInfo,
2555 hsOpts.UseBuiltinIncludes,
2556 hsOpts.UseStandardSystemIncludes,
2557 hsOpts.UseStandardCXXIncludes,
2559 hsOpts.ModulesValidateDiagnosticOptions);
2560 code = hash_combine(code, hsOpts.ResourceDir);
2562 // Extend the signature with the user build path.
2563 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
2565 // Extend the signature with the module file extensions.
2566 const FrontendOptions &frontendOpts = getFrontendOpts();
2567 for (const auto &ext : frontendOpts.ModuleFileExtensions) {
2568 code = ext->hashExtension(code);
2571 // Darwin-specific hack: if we have a sysroot, use the contents and
2572 // modification time of
2573 // $sysroot/System/Library/CoreServices/SystemVersion.plist
2574 // as part of the module hash.
2575 if (!hsOpts.Sysroot.empty()) {
2576 SmallString<128> systemVersionFile;
2577 systemVersionFile += hsOpts.Sysroot;
2578 llvm::sys::path::append(systemVersionFile, "System");
2579 llvm::sys::path::append(systemVersionFile, "Library");
2580 llvm::sys::path::append(systemVersionFile, "CoreServices");
2581 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist");
2583 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer =
2584 llvm::MemoryBuffer::getFile(systemVersionFile);
2586 code = hash_combine(code, buffer.get()->getBuffer());
2588 struct stat statBuf;
2589 if (stat(systemVersionFile.c_str(), &statBuf) == 0)
2590 code = hash_combine(code, statBuf.st_mtime);
2594 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
2599 template<typename IntTy>
2600 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
2602 DiagnosticsEngine *Diags) {
2603 IntTy Res = Default;
2604 if (Arg *A = Args.getLastArg(Id)) {
2605 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
2607 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)
2615 // Declared in clang/Frontend/Utils.h.
2616 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
2617 DiagnosticsEngine *Diags) {
2618 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags);
2621 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
2623 DiagnosticsEngine *Diags) {
2624 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags);
2627 void BuryPointer(const void *Ptr) {
2628 // This function may be called only a small fixed amount of times per each
2629 // invocation, otherwise we do actually have a leak which we want to report.
2630 // If this function is called more than kGraveYardMaxSize times, the pointers
2631 // will not be properly buried and a leak detector will report a leak, which
2632 // is what we want in such case.
2633 static const size_t kGraveYardMaxSize = 16;
2634 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize];
2635 static std::atomic<unsigned> GraveYardSize;
2636 unsigned Idx = GraveYardSize++;
2637 if (Idx >= kGraveYardMaxSize)
2639 GraveYard[Idx] = Ptr;
2642 IntrusiveRefCntPtr<vfs::FileSystem>
2643 createVFSFromCompilerInvocation(const CompilerInvocation &CI,
2644 DiagnosticsEngine &Diags) {
2645 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
2646 return vfs::getRealFileSystem();
2648 IntrusiveRefCntPtr<vfs::OverlayFileSystem>
2649 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem()));
2650 // earlier vfs files are on the bottom
2651 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
2652 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
2653 llvm::MemoryBuffer::getFile(File);
2655 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
2656 return IntrusiveRefCntPtr<vfs::FileSystem>();
2659 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML(
2660 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File);
2662 Diags.Report(diag::err_invalid_vfs_overlay) << File;
2663 return IntrusiveRefCntPtr<vfs::FileSystem>();
2665 Overlay->pushOverlay(FS);
2669 } // end namespace clang