1 //===--- CompilerInvocation.cpp -------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "clang/Frontend/CompilerInvocation.h"
11 #include "TestModuleFileExtension.h"
12 #include "clang/Basic/Builtins.h"
13 #include "clang/Basic/FileManager.h"
14 #include "clang/Basic/Version.h"
15 #include "clang/Config/config.h"
16 #include "clang/Driver/DriverDiagnostic.h"
17 #include "clang/Driver/Options.h"
18 #include "clang/Driver/Util.h"
19 #include "clang/Frontend/FrontendDiagnostic.h"
20 #include "clang/Frontend/LangStandard.h"
21 #include "clang/Frontend/Utils.h"
22 #include "clang/Lex/HeaderSearchOptions.h"
23 #include "clang/Lex/PreprocessorOptions.h"
24 #include "clang/Serialization/ASTReader.h"
25 #include "clang/Serialization/ModuleFileExtension.h"
26 #include "llvm/ADT/Hashing.h"
27 #include "llvm/ADT/STLExtras.h"
28 #include "llvm/ADT/SmallVector.h"
29 #include "llvm/ADT/StringExtras.h"
30 #include "llvm/ADT/StringSwitch.h"
31 #include "llvm/ADT/Triple.h"
32 #include "llvm/Linker/Linker.h"
33 #include "llvm/Option/Arg.h"
34 #include "llvm/Option/ArgList.h"
35 #include "llvm/Option/OptTable.h"
36 #include "llvm/Option/Option.h"
37 #include "llvm/ProfileData/InstrProfReader.h"
38 #include "llvm/Support/CodeGen.h"
39 #include "llvm/Support/ErrorHandling.h"
40 #include "llvm/Support/FileSystem.h"
41 #include "llvm/Support/Host.h"
42 #include "llvm/Support/Path.h"
43 #include "llvm/Support/Process.h"
44 #include "llvm/Target/TargetOptions.h"
45 #include "llvm/Support/ScopedPrinter.h"
49 #include <system_error>
50 using namespace clang;
52 //===----------------------------------------------------------------------===//
54 //===----------------------------------------------------------------------===//
56 CompilerInvocationBase::CompilerInvocationBase()
57 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
58 DiagnosticOpts(new DiagnosticOptions()),
59 HeaderSearchOpts(new HeaderSearchOptions()),
60 PreprocessorOpts(new PreprocessorOptions()) {}
62 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X)
63 : LangOpts(new LangOptions(*X.getLangOpts())),
64 TargetOpts(new TargetOptions(X.getTargetOpts())),
65 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
66 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
67 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {}
69 CompilerInvocationBase::~CompilerInvocationBase() {}
71 //===----------------------------------------------------------------------===//
72 // Deserialization (from args)
73 //===----------------------------------------------------------------------===//
75 using namespace clang::driver;
76 using namespace clang::driver::options;
77 using namespace llvm::opt;
81 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
82 DiagnosticsEngine &Diags) {
83 unsigned DefaultOpt = 0;
84 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable))
87 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
88 if (A->getOption().matches(options::OPT_O0))
91 if (A->getOption().matches(options::OPT_Ofast))
94 assert (A->getOption().matches(options::OPT_O));
96 StringRef S(A->getValue());
97 if (S == "s" || S == "z" || S.empty())
103 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags);
109 static unsigned getOptimizationLevelSize(ArgList &Args) {
110 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
111 if (A->getOption().matches(options::OPT_O)) {
112 switch (A->getValue()[0]) {
125 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
126 OptSpecifier GroupWithValue,
127 std::vector<std::string> &Diagnostics) {
128 for (Arg *A : Args.filtered(Group)) {
129 if (A->getOption().getKind() == Option::FlagClass) {
130 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
131 // its name (minus the "W" or "R" at the beginning) to the warning list.
132 Diagnostics.push_back(A->getOption().getName().drop_front(1));
133 } else if (A->getOption().matches(GroupWithValue)) {
134 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group.
135 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-"));
137 // Otherwise, add its value (for OPT_W_Joined and similar).
138 for (const char *Arg : A->getValues())
139 Diagnostics.emplace_back(Arg);
144 static void getAllNoBuiltinFuncValues(ArgList &Args,
145 std::vector<std::string> &Funcs) {
146 SmallVector<const char *, 8> Values;
147 for (const auto &Arg : Args) {
148 const Option &O = Arg->getOption();
149 if (O.matches(options::OPT_fno_builtin_)) {
150 const char *FuncName = Arg->getValue();
151 if (Builtin::Context::isBuiltinFunc(FuncName))
152 Values.push_back(FuncName);
155 Funcs.insert(Funcs.end(), Values.begin(), Values.end());
158 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
159 DiagnosticsEngine &Diags) {
160 using namespace options;
162 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
163 StringRef Name = A->getValue();
164 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
165 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
166 .Case(CMDFLAG, NAME##Model)
167 #include "clang/StaticAnalyzer/Core/Analyses.def"
169 if (Value == NumStores) {
170 Diags.Report(diag::err_drv_invalid_value)
171 << A->getAsString(Args) << Name;
174 Opts.AnalysisStoreOpt = Value;
178 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
179 StringRef Name = A->getValue();
180 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
181 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
182 .Case(CMDFLAG, NAME##Model)
183 #include "clang/StaticAnalyzer/Core/Analyses.def"
184 .Default(NumConstraints);
185 if (Value == NumConstraints) {
186 Diags.Report(diag::err_drv_invalid_value)
187 << A->getAsString(Args) << Name;
190 Opts.AnalysisConstraintsOpt = Value;
194 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
195 StringRef Name = A->getValue();
196 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
197 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
198 .Case(CMDFLAG, PD_##NAME)
199 #include "clang/StaticAnalyzer/Core/Analyses.def"
200 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
201 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
202 Diags.Report(diag::err_drv_invalid_value)
203 << A->getAsString(Args) << Name;
206 Opts.AnalysisDiagOpt = Value;
210 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
211 StringRef Name = A->getValue();
212 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
213 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
215 #include "clang/StaticAnalyzer/Core/Analyses.def"
216 .Default(NumPurgeModes);
217 if (Value == NumPurgeModes) {
218 Diags.Report(diag::err_drv_invalid_value)
219 << A->getAsString(Args) << Name;
222 Opts.AnalysisPurgeOpt = Value;
226 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
227 StringRef Name = A->getValue();
228 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
229 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
231 #include "clang/StaticAnalyzer/Core/Analyses.def"
232 .Default(NumInliningModes);
233 if (Value == NumInliningModes) {
234 Diags.Report(diag::err_drv_invalid_value)
235 << A->getAsString(Args) << Name;
238 Opts.InliningMode = Value;
242 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
243 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers);
244 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks);
246 Opts.visualizeExplodedGraphWithGraphViz =
247 Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
248 Opts.visualizeExplodedGraphWithUbiGraph =
249 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
250 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
251 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
252 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
253 Opts.AnalyzeNestedBlocks =
254 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
255 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume);
256 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
257 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
258 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
259 Opts.maxBlockVisitOnPath =
260 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags);
261 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
262 Opts.InlineMaxStackDepth =
263 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth,
264 Opts.InlineMaxStackDepth, Diags);
266 Opts.CheckersControlList.clear();
268 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) {
270 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
271 // We can have a list of comma separated checker names, e.g:
272 // '-analyzer-checker=cocoa,unix'
273 StringRef checkerList = A->getValue();
274 SmallVector<StringRef, 4> checkers;
275 checkerList.split(checkers, ",");
276 for (StringRef checker : checkers)
277 Opts.CheckersControlList.emplace_back(checker, enable);
280 // Go through the analyzer configuration options.
281 for (const Arg *A : Args.filtered(OPT_analyzer_config)) {
283 // We can have a list of comma separated config names, e.g:
284 // '-analyzer-config key1=val1,key2=val2'
285 StringRef configList = A->getValue();
286 SmallVector<StringRef, 4> configVals;
287 configList.split(configVals, ",");
288 for (unsigned i = 0, e = configVals.size(); i != e; ++i) {
290 std::tie(key, val) = configVals[i].split("=");
292 Diags.Report(SourceLocation(),
293 diag::err_analyzer_config_no_value) << configVals[i];
297 if (val.find('=') != StringRef::npos) {
298 Diags.Report(SourceLocation(),
299 diag::err_analyzer_config_multiple_values)
304 Opts.Config[key] = val;
311 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
312 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
313 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
317 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
318 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
319 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
322 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) {
323 if (Arg *A = Args.getLastArg(OPT_mcode_model)) {
324 StringRef Value = A->getValue();
325 if (Value == "small" || Value == "kernel" || Value == "medium" ||
328 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
333 static StringRef getRelocModel(ArgList &Args, DiagnosticsEngine &Diags) {
334 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) {
335 StringRef Value = A->getValue();
336 if (Value == "static" || Value == "pic" || Value == "ropi" ||
337 Value == "rwpi" || Value == "ropi-rwpi" || Value == "dynamic-no-pic")
339 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
344 /// \brief Create a new Regex instance out of the string value in \p RpassArg.
345 /// It returns a pointer to the newly generated Regex instance.
346 static std::shared_ptr<llvm::Regex>
347 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args,
349 StringRef Val = RpassArg->getValue();
350 std::string RegexError;
351 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val);
352 if (!Pattern->isValid(RegexError)) {
353 Diags.Report(diag::err_drv_optimization_remark_pattern)
354 << RegexError << RpassArg->getAsString(Args);
360 static bool parseDiagnosticLevelMask(StringRef FlagName,
361 const std::vector<std::string> &Levels,
362 DiagnosticsEngine *Diags,
363 DiagnosticLevelMask &M) {
365 for (const auto &Level : Levels) {
366 DiagnosticLevelMask const PM =
367 llvm::StringSwitch<DiagnosticLevelMask>(Level)
368 .Case("note", DiagnosticLevelMask::Note)
369 .Case("remark", DiagnosticLevelMask::Remark)
370 .Case("warning", DiagnosticLevelMask::Warning)
371 .Case("error", DiagnosticLevelMask::Error)
372 .Default(DiagnosticLevelMask::None);
373 if (PM == DiagnosticLevelMask::None) {
376 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level;
383 static void parseSanitizerKinds(StringRef FlagName,
384 const std::vector<std::string> &Sanitizers,
385 DiagnosticsEngine &Diags, SanitizerSet &S) {
386 for (const auto &Sanitizer : Sanitizers) {
387 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false);
389 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer;
395 // Set the profile kind for fprofile-instrument.
396 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args,
397 DiagnosticsEngine &Diags) {
398 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ);
401 StringRef S = A->getValue();
402 unsigned I = llvm::StringSwitch<unsigned>(S)
403 .Case("none", CodeGenOptions::ProfileNone)
404 .Case("clang", CodeGenOptions::ProfileClangInstr)
405 .Case("llvm", CodeGenOptions::ProfileIRInstr)
408 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args)
412 CodeGenOptions::ProfileInstrKind Instrumentor =
413 static_cast<CodeGenOptions::ProfileInstrKind>(I);
414 Opts.setProfileInstr(Instrumentor);
417 // Set the profile kind using fprofile-instrument-use-path.
418 static void setPGOUseInstrumentor(CodeGenOptions &Opts,
419 const Twine &ProfileName) {
420 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName);
421 // In error, return silently and let Clang PGOUse report the error message.
422 if (auto E = ReaderOrErr.takeError()) {
423 llvm::consumeError(std::move(E));
424 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
427 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader =
428 std::move(ReaderOrErr.get());
429 if (PGOReader->isIRLevelProfile())
430 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr);
432 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
435 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
436 DiagnosticsEngine &Diags,
437 const TargetOptions &TargetOpts) {
438 using namespace options;
440 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple);
442 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
443 // TODO: This could be done in Driver
444 unsigned MaxOptLevel = 3;
445 if (OptimizationLevel > MaxOptLevel) {
446 // If the optimization level is not supported, fall back on the default
448 Diags.Report(diag::warn_drv_optimization_value)
449 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
450 OptimizationLevel = MaxOptLevel;
452 Opts.OptimizationLevel = OptimizationLevel;
454 // At O0 we want to fully disable inlining outside of cases marked with
455 // 'alwaysinline' that are required for correctness.
456 Opts.setInlining((Opts.OptimizationLevel == 0)
457 ? CodeGenOptions::OnlyAlwaysInlining
458 : CodeGenOptions::NormalInlining);
459 // Explicit inlining flags can disable some or all inlining even at
460 // optimization levels above zero.
461 if (Arg *InlineArg = Args.getLastArg(
462 options::OPT_finline_functions, options::OPT_finline_hint_functions,
463 options::OPT_fno_inline_functions, options::OPT_fno_inline)) {
464 if (Opts.OptimizationLevel > 0) {
465 const Option &InlineOpt = InlineArg->getOption();
466 if (InlineOpt.matches(options::OPT_finline_functions))
467 Opts.setInlining(CodeGenOptions::NormalInlining);
468 else if (InlineOpt.matches(options::OPT_finline_hint_functions))
469 Opts.setInlining(CodeGenOptions::OnlyHintInlining);
471 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
475 Opts.ExperimentalNewPassManager = Args.hasFlag(
476 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager,
477 /* Default */ false);
479 if (Arg *A = Args.getLastArg(OPT_fveclib)) {
480 StringRef Name = A->getValue();
481 if (Name == "Accelerate")
482 Opts.setVecLib(CodeGenOptions::Accelerate);
483 else if (Name == "SVML")
484 Opts.setVecLib(CodeGenOptions::SVML);
485 else if (Name == "none")
486 Opts.setVecLib(CodeGenOptions::NoLibrary);
488 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
491 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) {
493 llvm::StringSwitch<unsigned>(A->getValue())
494 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly)
495 .Case("limited", codegenoptions::LimitedDebugInfo)
496 .Case("standalone", codegenoptions::FullDebugInfo)
499 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
502 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val));
504 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) {
505 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
506 .Case("gdb", unsigned(llvm::DebuggerKind::GDB))
507 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB))
508 .Case("sce", unsigned(llvm::DebuggerKind::SCE))
511 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
514 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val));
516 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags);
517 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
518 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview);
519 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro);
520 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables);
521 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std);
522 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
523 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining);
524 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs);
525 Opts.DebugExplicitImport = Triple.isPS4CPU();
527 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ))
528 Opts.DebugPrefixMap.insert(StringRef(Arg).split('='));
531 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists))
532 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
534 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes);
535 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers);
536 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
537 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
538 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
539 OPT_fuse_register_sized_bitfield_access);
540 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
541 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
542 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
543 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
544 Opts.NoCommon = Args.hasArg(OPT_fno_common);
545 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
546 Opts.OptimizeSize = getOptimizationLevelSize(Args);
547 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
548 Args.hasArg(OPT_ffreestanding));
549 if (Opts.SimplifyLibCalls)
550 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
552 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
553 (Opts.OptimizationLevel > 1));
554 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
556 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
557 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
558 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
559 Opts.DebugInfoForProfiling = Args.hasFlag(
560 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false);
562 setPGOInstrumentor(Opts, Args, Diags);
563 Opts.InstrProfileOutput =
564 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ);
565 Opts.ProfileInstrumentUsePath =
566 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ);
567 if (!Opts.ProfileInstrumentUsePath.empty())
568 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath);
570 Opts.CoverageMapping =
571 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false);
572 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
573 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
574 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments);
575 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
576 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
577 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
578 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
579 Opts.CodeModel = getCodeModel(Args, Diags);
580 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
582 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg));
583 Opts.DisableFree = Args.hasArg(OPT_disable_free);
584 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names);
585 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
586 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
587 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) ||
588 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
589 Args.hasArg(OPT_cl_fast_relaxed_math);
590 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
591 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
592 Args.hasArg(OPT_cl_finite_math_only) ||
593 Args.hasArg(OPT_cl_fast_relaxed_math));
594 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
595 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
596 Args.hasArg(OPT_cl_finite_math_only) ||
597 Args.hasArg(OPT_cl_fast_relaxed_math));
598 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) ||
599 Args.hasArg(OPT_cl_no_signed_zeros) ||
600 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
601 Args.hasArg(OPT_cl_fast_relaxed_math));
602 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero);
603 Opts.CorrectlyRoundedDivSqrt =
604 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt);
605 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
606 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math);
607 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
608 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
609 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
610 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
611 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
612 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
613 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
614 Opts.IncrementalLinkerCompatible =
615 Args.hasArg(OPT_mincremental_linker_compatible);
616 Opts.PIECopyRelocations =
617 Args.hasArg(OPT_mpie_copy_relocations);
618 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
619 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
620 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
621 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
622 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
623 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return);
624 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers);
625 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
626 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
627 Args.hasArg(OPT_cl_fast_relaxed_math);
628 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
629 Opts.RelocationModel = getRelocModel(Args, Diags);
630 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
631 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
632 Diags.Report(diag::err_drv_invalid_value)
633 << Args.getLastArg(OPT_mthread_model)->getAsString(Args)
635 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
636 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
638 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
639 OPT_fno_function_sections, false);
640 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
641 OPT_fno_data_sections, false);
642 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
643 OPT_fno_unique_section_names, true);
645 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
647 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables);
649 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ);
650 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ);
651 Opts.EmitSummaryIndex = A && A->containsValue("thin");
652 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false);
653 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) {
654 if (IK != IK_LLVM_IR)
655 Diags.Report(diag::err_drv_argument_only_allowed_with)
656 << A->getAsString(Args) << "-x ir";
657 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ);
659 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ);
661 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile);
663 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive);
664 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
665 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
667 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
668 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
670 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
671 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
672 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
673 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
674 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file);
675 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file);
676 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
677 Opts.CoverageNoFunctionNamesInData =
678 Args.hasArg(OPT_coverage_no_function_names_in_data);
679 Opts.CoverageExitBlockBeforeBody =
680 Args.hasArg(OPT_coverage_exit_block_before_body);
681 if (Args.hasArg(OPT_coverage_version_EQ)) {
682 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
683 if (CoverageVersion.size() != 4) {
684 Diags.Report(diag::err_drv_invalid_value)
685 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
688 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
692 // Handle -fembed-bitcode option.
693 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) {
694 StringRef Name = A->getValue();
695 unsigned Model = llvm::StringSwitch<unsigned>(Name)
696 .Case("off", CodeGenOptions::Embed_Off)
697 .Case("all", CodeGenOptions::Embed_All)
698 .Case("bitcode", CodeGenOptions::Embed_Bitcode)
699 .Case("marker", CodeGenOptions::Embed_Marker)
702 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
705 Opts.setEmbedBitcode(
706 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model));
708 // FIXME: For backend options that are not yet recorded as function
709 // attributes in the IR, keep track of them so we can embed them in a
710 // separate data section and use them when building the bitcode.
711 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) {
712 for (const auto &A : Args) {
713 // Do not encode output and input.
714 if (A->getOption().getID() == options::OPT_o ||
715 A->getOption().getID() == options::OPT_INPUT ||
716 A->getOption().getID() == options::OPT_x ||
717 A->getOption().getID() == options::OPT_fembed_bitcode ||
718 (A->getOption().getGroup().isValid() &&
719 A->getOption().getGroup().getID() == options::OPT_W_Group))
722 A->render(Args, ASL);
723 for (const auto &arg : ASL) {
724 StringRef ArgStr(arg);
725 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end());
726 // using \00 to seperate each commandline options.
727 Opts.CmdArgs.push_back('\0');
732 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type);
733 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
734 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument);
735 Opts.XRayInstructionThreshold =
736 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags);
737 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
738 Opts.CallFEntry = Args.hasArg(OPT_mfentry);
739 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
740 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections);
741 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations);
742 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
743 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) {
744 CodeGenOptions::BitcodeFileToLink F;
745 F.Filename = A->getValue();
746 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) {
747 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded;
748 // When linking CUDA bitcode, propagate function attributes so that
749 // e.g. libdevice gets fast-math attrs if we're building with fast-math.
750 F.PropagateAttrs = true;
751 F.Internalize = true;
753 Opts.LinkBitcodeFiles.push_back(F);
755 Opts.SanitizeCoverageType =
756 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags);
757 Opts.SanitizeCoverageIndirectCalls =
758 Args.hasArg(OPT_fsanitize_coverage_indirect_calls);
759 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb);
760 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp);
761 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div);
762 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep);
763 Opts.SanitizeCoverage8bitCounters =
764 Args.hasArg(OPT_fsanitize_coverage_8bit_counters);
765 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc);
766 Opts.SanitizeCoverageTracePCGuard =
767 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard);
768 Opts.SanitizeMemoryTrackOrigins =
769 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
770 Opts.SanitizeMemoryUseAfterDtor =
771 Args.hasArg(OPT_fsanitize_memory_use_after_dtor);
772 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso);
773 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats);
774 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope,
775 OPT_fno_sanitize_address_use_after_scope)) {
776 Opts.SanitizeAddressUseAfterScope =
777 A->getOption().getID() == OPT_fsanitize_address_use_after_scope;
780 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
781 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
782 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
783 StringRef Val = A->getValue();
784 unsigned StackAlignment = Opts.StackAlignment;
785 Val.getAsInteger(10, StackAlignment);
786 Opts.StackAlignment = StackAlignment;
789 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) {
790 StringRef Val = A->getValue();
791 unsigned StackProbeSize = Opts.StackProbeSize;
792 Val.getAsInteger(0, StackProbeSize);
793 Opts.StackProbeSize = StackProbeSize;
796 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
797 StringRef Name = A->getValue();
798 unsigned Method = llvm::StringSwitch<unsigned>(Name)
799 .Case("legacy", CodeGenOptions::Legacy)
800 .Case("non-legacy", CodeGenOptions::NonLegacy)
801 .Case("mixed", CodeGenOptions::Mixed)
804 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
807 Opts.setObjCDispatchMethod(
808 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
813 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false);
815 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
816 StringRef Name = A->getValue();
817 unsigned Model = llvm::StringSwitch<unsigned>(Name)
818 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
819 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
820 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
821 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
824 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
827 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
831 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) {
832 StringRef Val = A->getValue();
834 Opts.FPDenormalMode = "ieee";
835 else if (Val == "preserve-sign")
836 Opts.FPDenormalMode = "preserve-sign";
837 else if (Val == "positive-zero")
838 Opts.FPDenormalMode = "positive-zero";
840 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
843 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
844 if (A->getOption().matches(OPT_fpcc_struct_return)) {
845 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
847 assert(A->getOption().matches(OPT_freg_struct_return));
848 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
852 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
853 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option);
854 bool NeedLocTracking = false;
856 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file);
857 if (!Opts.OptRecordFile.empty())
858 NeedLocTracking = true;
860 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
861 Opts.OptimizationRemarkPattern =
862 GenerateOptimizationRemarkRegex(Diags, Args, A);
863 NeedLocTracking = true;
866 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
867 Opts.OptimizationRemarkMissedPattern =
868 GenerateOptimizationRemarkRegex(Diags, Args, A);
869 NeedLocTracking = true;
872 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
873 Opts.OptimizationRemarkAnalysisPattern =
874 GenerateOptimizationRemarkRegex(Diags, Args, A);
875 NeedLocTracking = true;
878 Opts.DiagnosticsWithHotness =
879 Args.hasArg(options::OPT_fdiagnostics_show_hotness);
880 if (Opts.DiagnosticsWithHotness &&
881 Opts.getProfileUse() == CodeGenOptions::ProfileNone)
882 Diags.Report(diag::warn_drv_fdiagnostics_show_hotness_requires_pgo);
884 // If the user requested to use a sample profile for PGO, then the
885 // backend will need to track source location information so the profile
886 // can be incorporated into the IR.
887 if (!Opts.SampleProfileFile.empty())
888 NeedLocTracking = true;
890 // If the user requested a flag that requires source locations available in
891 // the backend, make sure that the backend tracks source location information.
892 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo)
893 Opts.setDebugInfo(codegenoptions::LocTrackingOnly);
895 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file);
897 // Parse -fsanitize-recover= arguments.
898 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
899 parseSanitizerKinds("-fsanitize-recover=",
900 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
901 Opts.SanitizeRecover);
902 parseSanitizerKinds("-fsanitize-trap=",
903 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags,
906 Opts.CudaGpuBinaryFileNames =
907 Args.getAllArgValues(OPT_fcuda_include_gpubinary);
909 Opts.Backchain = Args.hasArg(OPT_mbackchain);
911 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue(
912 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags);
917 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
919 using namespace options;
920 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
921 Opts.Targets = Args.getAllArgValues(OPT_MT);
922 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
923 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
924 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
925 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
926 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
927 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
928 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes);
929 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
930 Opts.ModuleDependencyOutputDir =
931 Args.getLastArgValue(OPT_module_dependency_dir);
932 if (Args.hasArg(OPT_MV))
933 Opts.OutputFormat = DependencyOutputFormat::NMake;
934 // Add sanitizer blacklists as extra dependencies.
935 // They won't be discovered by the regular preprocessor, so
936 // we let make / ninja to know about this implicit dependency.
937 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry);
938 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
939 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(),
943 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) {
944 // Color diagnostics default to auto ("on" if terminal supports) in the driver
945 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color.
946 // Support both clang's -f[no-]color-diagnostics and gcc's
947 // -f[no-]diagnostics-colors[=never|always|auto].
952 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off;
953 for (Arg *A : Args) {
954 const Option &O = A->getOption();
955 if (O.matches(options::OPT_fcolor_diagnostics) ||
956 O.matches(options::OPT_fdiagnostics_color)) {
957 ShowColors = Colors_On;
958 } else if (O.matches(options::OPT_fno_color_diagnostics) ||
959 O.matches(options::OPT_fno_diagnostics_color)) {
960 ShowColors = Colors_Off;
961 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) {
962 StringRef Value(A->getValue());
963 if (Value == "always")
964 ShowColors = Colors_On;
965 else if (Value == "never")
966 ShowColors = Colors_Off;
967 else if (Value == "auto")
968 ShowColors = Colors_Auto;
971 return ShowColors == Colors_On ||
972 (ShowColors == Colors_Auto &&
973 llvm::sys::Process::StandardErrHasColors());
976 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
977 DiagnosticsEngine *Diags,
978 bool DefaultDiagColor, bool DefaultShowOpt) {
979 using namespace options;
982 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
984 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
985 Opts.DiagnosticSerializationFile = A->getValue();
986 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
987 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
988 Opts.Pedantic = Args.hasArg(OPT_pedantic);
989 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
990 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
991 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor);
992 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
995 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
996 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
997 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths);
998 Opts.ShowOptionNames =
999 Args.hasFlag(OPT_fdiagnostics_show_option,
1000 OPT_fno_diagnostics_show_option, DefaultShowOpt);
1002 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
1004 // Default behavior is to not to show note include stacks.
1005 Opts.ShowNoteIncludeStack = false;
1006 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
1007 OPT_fno_diagnostics_show_note_include_stack))
1008 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
1009 Opts.ShowNoteIncludeStack = true;
1011 StringRef ShowOverloads =
1012 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
1013 if (ShowOverloads == "best")
1014 Opts.setShowOverloads(Ovl_Best);
1015 else if (ShowOverloads == "all")
1016 Opts.setShowOverloads(Ovl_All);
1020 Diags->Report(diag::err_drv_invalid_value)
1021 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
1025 StringRef ShowCategory =
1026 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
1027 if (ShowCategory == "none")
1028 Opts.ShowCategories = 0;
1029 else if (ShowCategory == "id")
1030 Opts.ShowCategories = 1;
1031 else if (ShowCategory == "name")
1032 Opts.ShowCategories = 2;
1036 Diags->Report(diag::err_drv_invalid_value)
1037 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
1042 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
1043 if (Format == "clang")
1044 Opts.setFormat(DiagnosticOptions::Clang);
1045 else if (Format == "msvc")
1046 Opts.setFormat(DiagnosticOptions::MSVC);
1047 else if (Format == "msvc-fallback") {
1048 Opts.setFormat(DiagnosticOptions::MSVC);
1049 Opts.CLFallbackMode = true;
1050 } else if (Format == "vi")
1051 Opts.setFormat(DiagnosticOptions::Vi);
1055 Diags->Report(diag::err_drv_invalid_value)
1056 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
1060 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
1061 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
1062 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
1063 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
1064 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
1065 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=",
1066 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ),
1068 if (Args.hasArg(OPT_verify_ignore_unexpected))
1069 DiagMask = DiagnosticLevelMask::All;
1070 Opts.setVerifyIgnoreUnexpected(DiagMask);
1071 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
1072 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
1073 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
1074 Opts.MacroBacktraceLimit =
1075 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
1076 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
1077 Opts.TemplateBacktraceLimit = getLastArgIntValue(
1078 Args, OPT_ftemplate_backtrace_limit,
1079 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
1080 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
1081 Args, OPT_fconstexpr_backtrace_limit,
1082 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
1083 Opts.SpellCheckingLimit = getLastArgIntValue(
1084 Args, OPT_fspell_checking_limit,
1085 DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
1086 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
1087 DiagnosticOptions::DefaultTabStop, Diags);
1088 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
1089 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
1091 Diags->Report(diag::warn_ignoring_ftabstop_value)
1092 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
1094 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
1095 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
1096 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
1101 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
1102 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
1105 /// Parse the argument to the -ftest-module-file-extension
1106 /// command-line argument.
1108 /// \returns true on error, false on success.
1109 static bool parseTestModuleFileExtensionArg(StringRef Arg,
1110 std::string &BlockName,
1111 unsigned &MajorVersion,
1112 unsigned &MinorVersion,
1114 std::string &UserInfo) {
1115 SmallVector<StringRef, 5> Args;
1116 Arg.split(Args, ':', 5);
1117 if (Args.size() < 5)
1120 BlockName = Args[0];
1121 if (Args[1].getAsInteger(10, MajorVersion)) return true;
1122 if (Args[2].getAsInteger(10, MinorVersion)) return true;
1123 if (Args[3].getAsInteger(2, Hashed)) return true;
1124 if (Args.size() > 4)
1129 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
1130 DiagnosticsEngine &Diags,
1131 bool &IsHeaderFile) {
1132 using namespace options;
1133 Opts.ProgramAction = frontend::ParseSyntaxOnly;
1134 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
1135 switch (A->getOption().getID()) {
1137 llvm_unreachable("Invalid option in group!");
1139 Opts.ProgramAction = frontend::ASTDeclList; break;
1141 case OPT_ast_dump_all:
1142 case OPT_ast_dump_lookups:
1143 Opts.ProgramAction = frontend::ASTDump; break;
1145 Opts.ProgramAction = frontend::ASTPrint; break;
1147 Opts.ProgramAction = frontend::ASTView; break;
1148 case OPT_dump_raw_tokens:
1149 Opts.ProgramAction = frontend::DumpRawTokens; break;
1150 case OPT_dump_tokens:
1151 Opts.ProgramAction = frontend::DumpTokens; break;
1153 Opts.ProgramAction = frontend::EmitAssembly; break;
1154 case OPT_emit_llvm_bc:
1155 Opts.ProgramAction = frontend::EmitBC; break;
1157 Opts.ProgramAction = frontend::EmitHTML; break;
1159 Opts.ProgramAction = frontend::EmitLLVM; break;
1160 case OPT_emit_llvm_only:
1161 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
1162 case OPT_emit_codegen_only:
1163 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
1165 Opts.ProgramAction = frontend::EmitObj; break;
1167 Opts.FixItSuffix = A->getValue();
1170 Opts.ProgramAction = frontend::FixIt; break;
1171 case OPT_emit_module:
1172 Opts.ProgramAction = frontend::GenerateModule; break;
1173 case OPT_emit_module_interface:
1174 Opts.ProgramAction = frontend::GenerateModuleInterface; break;
1176 Opts.ProgramAction = frontend::GeneratePCH; break;
1178 Opts.ProgramAction = frontend::GeneratePTH; break;
1180 Opts.ProgramAction = frontend::InitOnly; break;
1181 case OPT_fsyntax_only:
1182 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
1183 case OPT_module_file_info:
1184 Opts.ProgramAction = frontend::ModuleFileInfo; break;
1185 case OPT_verify_pch:
1186 Opts.ProgramAction = frontend::VerifyPCH; break;
1187 case OPT_print_decl_contexts:
1188 Opts.ProgramAction = frontend::PrintDeclContext; break;
1189 case OPT_print_preamble:
1190 Opts.ProgramAction = frontend::PrintPreamble; break;
1192 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
1193 case OPT_rewrite_macros:
1194 Opts.ProgramAction = frontend::RewriteMacros; break;
1195 case OPT_rewrite_objc:
1196 Opts.ProgramAction = frontend::RewriteObjC; break;
1197 case OPT_rewrite_test:
1198 Opts.ProgramAction = frontend::RewriteTest; break;
1200 Opts.ProgramAction = frontend::RunAnalysis; break;
1202 Opts.ProgramAction = frontend::MigrateSource; break;
1204 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
1208 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
1209 Opts.Plugins.emplace_back(A->getValue(0));
1210 Opts.ProgramAction = frontend::PluginAction;
1211 Opts.ActionName = A->getValue();
1213 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
1214 for (const Arg *AA : Args.filtered(OPT_plugin_arg))
1215 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1));
1217 for (const std::string &Arg :
1218 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) {
1219 std::string BlockName;
1220 unsigned MajorVersion;
1221 unsigned MinorVersion;
1223 std::string UserInfo;
1224 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
1225 MinorVersion, Hashed, UserInfo)) {
1226 Diags.Report(diag::err_test_module_file_extension_format) << Arg;
1231 // Add the testing module file extension.
1232 Opts.ModuleFileExtensions.push_back(
1233 std::make_shared<TestModuleFileExtension>(
1234 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo));
1237 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
1238 Opts.CodeCompletionAt =
1239 ParsedSourceLocation::FromString(A->getValue());
1240 if (Opts.CodeCompletionAt.FileName.empty())
1241 Diags.Report(diag::err_drv_invalid_value)
1242 << A->getAsString(Args) << A->getValue();
1244 Opts.DisableFree = Args.hasArg(OPT_disable_free);
1246 Opts.OutputFile = Args.getLastArgValue(OPT_o);
1247 Opts.Plugins = Args.getAllArgValues(OPT_load);
1248 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1249 Opts.ShowHelp = Args.hasArg(OPT_help);
1250 Opts.ShowStats = Args.hasArg(OPT_print_stats);
1251 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1252 Opts.ShowVersion = Args.hasArg(OPT_version);
1253 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1254 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1255 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
1256 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
1257 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
1258 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
1259 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump);
1260 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all);
1261 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
1262 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
1263 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
1264 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
1265 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file);
1266 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
1267 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ);
1268 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files);
1269 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp);
1271 Opts.CodeCompleteOpts.IncludeMacros
1272 = Args.hasArg(OPT_code_completion_macros);
1273 Opts.CodeCompleteOpts.IncludeCodePatterns
1274 = Args.hasArg(OPT_code_completion_patterns);
1275 Opts.CodeCompleteOpts.IncludeGlobals
1276 = !Args.hasArg(OPT_no_code_completion_globals);
1277 Opts.CodeCompleteOpts.IncludeBriefComments
1278 = Args.hasArg(OPT_code_completion_brief_comments);
1280 Opts.OverrideRecordLayoutsFile
1281 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
1283 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple));
1284 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ);
1285 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file);
1287 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
1289 OPT_arcmt_migrate)) {
1290 switch (A->getOption().getID()) {
1292 llvm_unreachable("missed a case");
1293 case OPT_arcmt_check:
1294 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
1296 case OPT_arcmt_modify:
1297 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
1299 case OPT_arcmt_migrate:
1300 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
1304 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
1305 Opts.ARCMTMigrateReportOut
1306 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
1307 Opts.ARCMTMigrateEmitARCErrors
1308 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
1310 if (Args.hasArg(OPT_objcmt_migrate_literals))
1311 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
1312 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
1313 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
1314 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
1315 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
1316 if (Args.hasArg(OPT_objcmt_migrate_property))
1317 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
1318 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
1319 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
1320 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
1321 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
1322 if (Args.hasArg(OPT_objcmt_migrate_annotation))
1323 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
1324 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
1325 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
1326 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
1327 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
1328 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
1329 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
1330 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
1331 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
1332 if (Args.hasArg(OPT_objcmt_atomic_property))
1333 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
1334 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
1335 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
1336 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
1337 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
1338 if (Args.hasArg(OPT_objcmt_migrate_all))
1339 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
1341 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
1343 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
1344 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
1345 Diags.Report(diag::err_drv_argument_not_allowed_with)
1346 << "ARC migration" << "ObjC migration";
1349 InputKind DashX = IK_None;
1350 if (const Arg *A = Args.getLastArg(OPT_x)) {
1351 DashX = llvm::StringSwitch<InputKind>(A->getValue())
1353 .Case("cl", IK_OpenCL)
1354 .Case("cuda", IK_CUDA)
1355 .Case("c++", IK_CXX)
1356 .Case("objective-c", IK_ObjC)
1357 .Case("objective-c++", IK_ObjCXX)
1358 .Case("cpp-output", IK_PreprocessedC)
1359 .Case("assembler-with-cpp", IK_Asm)
1360 .Case("c++-cpp-output", IK_PreprocessedCXX)
1361 .Case("cuda-cpp-output", IK_PreprocessedCuda)
1362 .Case("objective-c-cpp-output", IK_PreprocessedObjC)
1363 .Case("objc-cpp-output", IK_PreprocessedObjC)
1364 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
1365 .Case("objc++-cpp-output", IK_PreprocessedObjCXX)
1366 .Case("c-header", IK_C)
1367 .Case("cl-header", IK_OpenCL)
1368 .Case("objective-c-header", IK_ObjC)
1369 .Case("c++-header", IK_CXX)
1370 .Case("objective-c++-header", IK_ObjCXX)
1371 .Cases("ast", "pcm", IK_AST)
1372 .Case("ir", IK_LLVM_IR)
1373 .Case("renderscript", IK_RenderScript)
1375 if (DashX == IK_None)
1376 Diags.Report(diag::err_drv_invalid_value)
1377 << A->getAsString(Args) << A->getValue();
1378 IsHeaderFile = llvm::StringSwitch<bool>(A->getValue())
1379 .Case("c-header", true)
1380 .Case("cl-header", true)
1381 .Case("objective-c-header", true)
1382 .Case("c++-header", true)
1383 .Case("objective-c++-header", true)
1387 // '-' is the default input if none is given.
1388 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1389 Opts.Inputs.clear();
1391 Inputs.push_back("-");
1392 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1393 InputKind IK = DashX;
1394 if (IK == IK_None) {
1395 IK = FrontendOptions::getInputKindForExtension(
1396 StringRef(Inputs[i]).rsplit('.').second);
1397 // FIXME: Remove this hack.
1401 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK);
1407 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1409 std::string ClangExecutable =
1410 llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
1411 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable);
1413 // Compute the path to the resource directory.
1414 StringRef ClangResourceDir(CLANG_RESOURCE_DIR);
1415 SmallString<128> P(Dir);
1416 if (ClangResourceDir != "")
1417 llvm::sys::path::append(P, ClangResourceDir);
1419 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX,
1420 "clang", CLANG_VERSION_STRING);
1425 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args,
1426 const std::string &WorkingDir) {
1427 using namespace options;
1428 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1429 Opts.Verbose = Args.hasArg(OPT_v);
1430 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1431 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
1432 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1433 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
1434 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
1435 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1437 // Canonicalize -fmodules-cache-path before storing it.
1438 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path));
1439 if (!(P.empty() || llvm::sys::path::is_absolute(P))) {
1440 if (WorkingDir.empty())
1441 llvm::sys::fs::make_absolute(P);
1443 llvm::sys::fs::make_absolute(WorkingDir, P);
1445 llvm::sys::path::remove_dots(P);
1446 Opts.ModuleCachePath = P.str();
1448 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
1449 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path))
1450 Opts.AddPrebuiltModulePath(A->getValue());
1451 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
1452 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content);
1453 Opts.ModulesValidateDiagnosticOptions =
1454 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation);
1455 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps);
1456 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd);
1457 Opts.ModuleCachePruneInterval =
1458 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
1459 Opts.ModuleCachePruneAfter =
1460 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
1461 Opts.ModulesValidateOncePerBuildSession =
1462 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
1463 Opts.BuildSessionTimestamp =
1464 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
1465 Opts.ModulesValidateSystemHeaders =
1466 Args.hasArg(OPT_fmodules_validate_system_headers);
1467 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ))
1468 Opts.ModuleFormat = A->getValue();
1470 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) {
1471 StringRef MacroDef = A->getValue();
1472 Opts.ModulesIgnoreMacros.insert(
1473 llvm::CachedHashString(MacroDef.split('=').first));
1476 // Add -I..., -F..., and -index-header-map options in order.
1477 bool IsIndexHeaderMap = false;
1478 bool IsSysrootSpecified =
1479 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot);
1480 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) {
1481 if (A->getOption().matches(OPT_index_header_map)) {
1482 // -index-header-map applies to the next -I or -F.
1483 IsIndexHeaderMap = true;
1487 frontend::IncludeDirGroup Group =
1488 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled;
1490 bool IsFramework = A->getOption().matches(OPT_F);
1491 std::string Path = A->getValue();
1493 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') {
1494 SmallString<32> Buffer;
1495 llvm::sys::path::append(Buffer, Opts.Sysroot,
1496 llvm::StringRef(A->getValue()).substr(1));
1497 Path = Buffer.str();
1500 Opts.AddPath(Path, Group, IsFramework,
1501 /*IgnoreSysroot*/ true);
1502 IsIndexHeaderMap = false;
1505 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
1506 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
1508 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) {
1509 if (A->getOption().matches(OPT_iprefix))
1510 Prefix = A->getValue();
1511 else if (A->getOption().matches(OPT_iwithprefix))
1512 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true);
1514 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true);
1517 for (const Arg *A : Args.filtered(OPT_idirafter))
1518 Opts.AddPath(A->getValue(), frontend::After, false, true);
1519 for (const Arg *A : Args.filtered(OPT_iquote))
1520 Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
1521 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
1522 Opts.AddPath(A->getValue(), frontend::System, false,
1523 !A->getOption().matches(OPT_iwithsysroot));
1524 for (const Arg *A : Args.filtered(OPT_iframework))
1525 Opts.AddPath(A->getValue(), frontend::System, true, true);
1526 for (const Arg *A : Args.filtered(OPT_iframeworkwithsysroot))
1527 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true,
1528 /*IgnoreSysRoot=*/false);
1530 // Add the paths for the various language specific isystem flags.
1531 for (const Arg *A : Args.filtered(OPT_c_isystem))
1532 Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
1533 for (const Arg *A : Args.filtered(OPT_cxx_isystem))
1534 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
1535 for (const Arg *A : Args.filtered(OPT_objc_isystem))
1536 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
1537 for (const Arg *A : Args.filtered(OPT_objcxx_isystem))
1538 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
1540 // Add the internal paths from a driver that detects standard include paths.
1542 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) {
1543 frontend::IncludeDirGroup Group = frontend::System;
1544 if (A->getOption().matches(OPT_internal_externc_isystem))
1545 Group = frontend::ExternCSystem;
1546 Opts.AddPath(A->getValue(), Group, false, true);
1549 // Add the path prefixes which are implicitly treated as being system headers.
1551 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix))
1552 Opts.AddSystemHeaderPrefix(
1553 A->getValue(), A->getOption().matches(OPT_system_header_prefix));
1555 for (const Arg *A : Args.filtered(OPT_ivfsoverlay))
1556 Opts.AddVFSOverlayFile(A->getValue());
1559 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
1560 const llvm::Triple &T,
1561 PreprocessorOptions &PPOpts,
1562 LangStandard::Kind LangStd) {
1563 // Set some properties which depend solely on the input kind; it would be nice
1564 // to move these to the language standard, and have the driver resolve the
1565 // input kind + language standard.
1567 Opts.AsmPreprocessor = 1;
1568 } else if (IK == IK_ObjC ||
1570 IK == IK_PreprocessedObjC ||
1571 IK == IK_PreprocessedObjCXX) {
1572 Opts.ObjC1 = Opts.ObjC2 = 1;
1575 if (LangStd == LangStandard::lang_unspecified) {
1576 // Based on the base language, pick one.
1581 llvm_unreachable("Invalid input kind!");
1583 LangStd = LangStandard::lang_opencl;
1586 case IK_PreprocessedCuda:
1587 LangStd = LangStandard::lang_cuda;
1591 case IK_PreprocessedC:
1592 // The PS4 uses C99 as the default C standard.
1594 LangStd = LangStandard::lang_gnu99;
1596 LangStd = LangStandard::lang_gnu11;
1599 case IK_PreprocessedObjC:
1600 LangStd = LangStandard::lang_gnu11;
1603 case IK_PreprocessedCXX:
1605 case IK_PreprocessedObjCXX:
1606 // The PS4 uses C++11 as the default C++ standard.
1608 LangStd = LangStandard::lang_gnucxx11;
1610 LangStd = LangStandard::lang_gnucxx98;
1612 case IK_RenderScript:
1613 LangStd = LangStandard::lang_c99;
1618 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1619 Opts.LineComment = Std.hasLineComments();
1620 Opts.C99 = Std.isC99();
1621 Opts.C11 = Std.isC11();
1622 Opts.CPlusPlus = Std.isCPlusPlus();
1623 Opts.CPlusPlus11 = Std.isCPlusPlus11();
1624 Opts.CPlusPlus14 = Std.isCPlusPlus14();
1625 Opts.CPlusPlus1z = Std.isCPlusPlus1z();
1626 Opts.Digraphs = Std.hasDigraphs();
1627 Opts.GNUMode = Std.isGNUMode();
1628 Opts.GNUInline = Std.isC89();
1629 Opts.HexFloats = Std.hasHexFloats();
1630 Opts.ImplicitInt = Std.hasImplicitInt();
1632 // Set OpenCL Version.
1633 Opts.OpenCL = Std.isOpenCL() || IK == IK_OpenCL;
1634 if (LangStd == LangStandard::lang_opencl)
1635 Opts.OpenCLVersion = 100;
1636 else if (LangStd == LangStandard::lang_opencl11)
1637 Opts.OpenCLVersion = 110;
1638 else if (LangStd == LangStandard::lang_opencl12)
1639 Opts.OpenCLVersion = 120;
1640 else if (LangStd == LangStandard::lang_opencl20)
1641 Opts.OpenCLVersion = 200;
1643 // OpenCL has some additional defaults.
1647 Opts.LaxVectorConversions = 0;
1648 Opts.setDefaultFPContractMode(LangOptions::FPC_On);
1649 Opts.NativeHalfType = 1;
1650 Opts.NativeHalfArgsAndReturns = 1;
1651 // Include default header file for OpenCL.
1652 if (Opts.IncludeDefaultHeader) {
1653 PPOpts.Includes.push_back("opencl-c.h");
1657 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda ||
1658 LangStd == LangStandard::lang_cuda;
1660 // Set default FP_CONTRACT to FAST.
1661 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast);
1663 Opts.RenderScript = IK == IK_RenderScript;
1664 if (Opts.RenderScript) {
1665 Opts.NativeHalfType = 1;
1666 Opts.NativeHalfArgsAndReturns = 1;
1669 // OpenCL and C++ both have bool, true, false keywords.
1670 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1672 // OpenCL has half keyword
1673 Opts.Half = Opts.OpenCL;
1675 // C++ has wchar_t keyword.
1676 Opts.WChar = Opts.CPlusPlus;
1678 Opts.GNUKeywords = Opts.GNUMode;
1679 Opts.CXXOperatorNames = Opts.CPlusPlus;
1681 Opts.AlignedAllocation = Opts.CPlusPlus1z;
1683 Opts.DollarIdents = !Opts.AsmPreprocessor;
1686 /// Attempt to parse a visibility value out of the given argument.
1687 static Visibility parseVisibility(Arg *arg, ArgList &args,
1688 DiagnosticsEngine &diags) {
1689 StringRef value = arg->getValue();
1690 if (value == "default") {
1691 return DefaultVisibility;
1692 } else if (value == "hidden" || value == "internal") {
1693 return HiddenVisibility;
1694 } else if (value == "protected") {
1695 // FIXME: diagnose if target does not support protected visibility
1696 return ProtectedVisibility;
1699 diags.Report(diag::err_drv_invalid_value)
1700 << arg->getAsString(args) << value;
1701 return DefaultVisibility;
1704 /// Check if input file kind and language standard are compatible.
1705 static bool IsInputCompatibleWithStandard(InputKind IK,
1706 const LangStandard &S) {
1710 case IK_PreprocessedC:
1711 case IK_PreprocessedObjC:
1712 if (S.isC89() || S.isC99())
1717 case IK_PreprocessedCXX:
1718 case IK_PreprocessedObjCXX:
1719 if (S.isCPlusPlus())
1727 case IK_PreprocessedCuda:
1728 if (S.isCPlusPlus())
1732 // For other inputs, accept (and ignore) all -std= values.
1738 /// Get language name for given input kind.
1739 static const StringRef GetInputKindName(InputKind IK) {
1743 case IK_PreprocessedC:
1744 case IK_PreprocessedObjC:
1748 case IK_PreprocessedCXX:
1749 case IK_PreprocessedObjCXX:
1750 return "C++/ObjC++";
1754 case IK_PreprocessedCuda:
1757 llvm_unreachable("Cannot decide on name for InputKind!");
1761 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
1762 const TargetOptions &TargetOpts,
1763 PreprocessorOptions &PPOpts,
1764 DiagnosticsEngine &Diags) {
1765 // FIXME: Cleanup per-file based stuff.
1766 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1767 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
1768 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1769 #define LANGSTANDARD(id, name, desc, features) \
1770 .Case(name, LangStandard::lang_##id)
1771 #define LANGSTANDARD_ALIAS(id, alias) \
1772 .Case(alias, LangStandard::lang_##id)
1773 #include "clang/Frontend/LangStandards.def"
1774 .Default(LangStandard::lang_unspecified);
1775 if (LangStd == LangStandard::lang_unspecified) {
1776 Diags.Report(diag::err_drv_invalid_value)
1777 << A->getAsString(Args) << A->getValue();
1778 // Report supported standards with short description.
1779 for (unsigned KindValue = 0;
1780 KindValue != LangStandard::lang_unspecified;
1782 const LangStandard &Std = LangStandard::getLangStandardForKind(
1783 static_cast<LangStandard::Kind>(KindValue));
1784 if (IsInputCompatibleWithStandard(IK, Std)) {
1785 Diags.Report(diag::note_drv_use_standard)
1786 << Std.getName() << Std.getDescription();
1790 // Valid standard, check to make sure language and standard are
1792 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1793 if (!IsInputCompatibleWithStandard(IK, Std)) {
1794 Diags.Report(diag::err_drv_argument_not_allowed_with)
1795 << A->getAsString(Args) << GetInputKindName(IK);
1800 // -cl-std only applies for OpenCL language standards.
1801 // Override the -std option in this case.
1802 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
1803 LangStandard::Kind OpenCLLangStd
1804 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1805 .Cases("cl", "CL", LangStandard::lang_opencl)
1806 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11)
1807 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12)
1808 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20)
1809 .Default(LangStandard::lang_unspecified);
1811 if (OpenCLLangStd == LangStandard::lang_unspecified) {
1812 Diags.Report(diag::err_drv_invalid_value)
1813 << A->getAsString(Args) << A->getValue();
1816 LangStd = OpenCLLangStd;
1819 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header);
1821 llvm::Triple T(TargetOpts.Triple);
1822 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd);
1824 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0.
1825 // This option should be deprecated for CL > 1.0 because
1826 // this option was added for compatibility with OpenCL 1.0.
1827 if (Args.getLastArg(OPT_cl_strict_aliasing)
1828 && Opts.OpenCLVersion > 100) {
1829 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) +
1831 llvm::to_string((Opts.OpenCLVersion % 100) / 10);
1832 Diags.Report(diag::warn_option_invalid_ocl_version)
1833 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args);
1836 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1837 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1838 // while a subset (the non-C++ GNU keywords) is provided by GCC's
1839 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1840 // name, as it doesn't seem a useful distinction.
1841 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
1844 if (Args.hasArg(OPT_fno_operator_names))
1845 Opts.CXXOperatorNames = 0;
1847 if (Args.hasArg(OPT_fcuda_is_device))
1848 Opts.CUDAIsDevice = 1;
1850 if (Args.hasArg(OPT_fcuda_allow_variadic_functions))
1851 Opts.CUDAAllowVariadicFunctions = 1;
1853 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr))
1854 Opts.CUDAHostDeviceConstexpr = 0;
1856 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero))
1857 Opts.CUDADeviceFlushDenormalsToZero = 1;
1859 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals))
1860 Opts.CUDADeviceApproxTranscendentals = 1;
1863 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
1864 StringRef value = arg->getValue();
1865 if (Opts.ObjCRuntime.tryParse(value))
1866 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
1869 if (Args.hasArg(OPT_fobjc_gc_only))
1870 Opts.setGC(LangOptions::GCOnly);
1871 else if (Args.hasArg(OPT_fobjc_gc))
1872 Opts.setGC(LangOptions::HybridGC);
1873 else if (Args.hasArg(OPT_fobjc_arc)) {
1874 Opts.ObjCAutoRefCount = 1;
1875 if (!Opts.ObjCRuntime.allowsARC())
1876 Diags.Report(diag::err_arc_unsupported_on_runtime);
1879 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
1880 // whether the feature is actually enabled. This is predominantly
1881 // determined by -fobjc-runtime, but we allow it to be overridden
1882 // from the command line for testing purposes.
1883 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
1884 Opts.ObjCWeakRuntime = 1;
1886 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
1888 // ObjCWeak determines whether __weak is actually enabled.
1889 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
1890 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) {
1891 if (!weakArg->getOption().matches(OPT_fobjc_weak)) {
1892 assert(!Opts.ObjCWeak);
1893 } else if (Opts.getGC() != LangOptions::NonGC) {
1894 Diags.Report(diag::err_objc_weak_with_gc);
1895 } else if (!Opts.ObjCWeakRuntime) {
1896 Diags.Report(diag::err_objc_weak_unsupported);
1900 } else if (Opts.ObjCAutoRefCount) {
1901 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
1904 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
1905 Opts.ObjCInferRelatedResultType = 0;
1907 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
1908 Opts.ObjCSubscriptingLegacyRuntime =
1909 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
1912 if (Args.hasArg(OPT_fgnu89_inline)) {
1914 Diags.Report(diag::err_drv_argument_not_allowed_with)
1915 << "-fgnu89-inline" << GetInputKindName(IK);
1920 if (Args.hasArg(OPT_fapple_kext)) {
1921 if (!Opts.CPlusPlus)
1922 Diags.Report(diag::warn_c_kext);
1927 if (Args.hasArg(OPT_print_ivar_layout))
1928 Opts.ObjCGCBitmapPrint = 1;
1929 if (Args.hasArg(OPT_fno_constant_cfstrings))
1930 Opts.NoConstantCFStrings = 1;
1932 if (Args.hasArg(OPT_fzvector))
1935 if (Args.hasArg(OPT_pthread))
1936 Opts.POSIXThreads = 1;
1938 // The value-visibility mode defaults to "default".
1939 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
1940 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
1942 Opts.setValueVisibilityMode(DefaultVisibility);
1945 // The type-visibility mode defaults to the value-visibility mode.
1946 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
1947 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
1949 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
1952 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
1953 Opts.InlineVisibilityHidden = 1;
1955 if (Args.hasArg(OPT_ftrapv)) {
1956 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
1957 // Set the handler, if one is specified.
1958 Opts.OverflowHandler =
1959 Args.getLastArgValue(OPT_ftrapv_handler);
1961 else if (Args.hasArg(OPT_fwrapv))
1962 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
1964 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
1965 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
1966 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
1967 Opts.MSCompatibilityVersion = 0;
1968 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) {
1970 if (VT.tryParse(A->getValue()))
1971 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
1973 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
1974 VT.getMinor().getValueOr(0) * 100000 +
1975 VT.getSubminor().getValueOr(0);
1978 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1979 // is specified, or -std is set to a conforming mode.
1980 // Trigraphs are disabled by default in c++1z onwards.
1981 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z;
1983 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs);
1985 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
1986 OPT_fno_dollars_in_identifiers,
1988 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
1989 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags);
1990 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
1991 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
1992 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
1994 if (Args.hasArg(OPT_fno_lax_vector_conversions))
1995 Opts.LaxVectorConversions = 0;
1996 if (Args.hasArg(OPT_fno_threadsafe_statics))
1997 Opts.ThreadsafeStatics = 0;
1998 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
1999 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
2000 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
2001 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
2002 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind);
2003 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
2005 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti);
2006 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
2007 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL
2008 && Opts.OpenCLVersion >= 200);
2009 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
2010 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts);
2011 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts);
2012 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS;
2013 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse);
2014 Opts.ModulesDeclUse =
2015 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
2016 Opts.ModulesLocalVisibility =
2017 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS;
2018 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen);
2019 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo);
2020 Opts.ModulesSearchAll = Opts.Modules &&
2021 !Args.hasArg(OPT_fno_modules_search_all) &&
2022 Args.hasArg(OPT_fmodules_search_all);
2023 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
2024 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules);
2025 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
2026 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
2027 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false);
2028 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
2029 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
2030 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
2031 if (!Opts.NoBuiltin)
2032 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
2033 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
2034 Opts.RelaxedTemplateTemplateArgs =
2035 Args.hasArg(OPT_frelaxed_template_template_args);
2036 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation);
2037 Opts.AlignedAllocation =
2038 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation,
2039 Opts.AlignedAllocation);
2040 Opts.NewAlignOverride =
2041 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags);
2042 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) {
2043 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ);
2044 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args)
2046 Opts.NewAlignOverride = 0;
2048 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts);
2049 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
2050 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
2051 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
2052 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
2053 Opts.InstantiationDepth =
2054 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags);
2056 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
2057 Opts.ConstexprCallDepth =
2058 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
2059 Opts.ConstexprStepLimit =
2060 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
2061 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
2062 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
2063 Opts.NumLargeByValueCopy =
2064 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
2065 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
2066 Opts.ObjCConstantStringClass =
2067 Args.getLastArgValue(OPT_fconstant_string_class);
2068 Opts.ObjCDefaultSynthProperties =
2069 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
2070 Opts.EncodeExtendedBlockSig =
2071 Args.hasArg(OPT_fencode_extended_block_signature);
2072 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
2073 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
2074 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags);
2075 Opts.AlignDouble = Args.hasArg(OPT_malign_double);
2076 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
2077 Opts.PIE = Args.hasArg(OPT_pic_is_pie);
2078 Opts.Static = Args.hasArg(OPT_static_define);
2079 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
2080 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
2081 || Args.hasArg(OPT_fdump_record_layouts);
2082 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
2083 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
2084 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
2085 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
2086 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
2087 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
2088 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
2089 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
2090 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
2091 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
2092 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
2093 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
2094 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ);
2095 Opts.AppExt = Args.hasArg(OPT_fapplication_extension);
2096 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature);
2097 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end());
2098 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type);
2099 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns);
2100 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns
2102 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns)
2103 | Opts.NativeHalfArgsAndReturns;
2104 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm);
2106 // __declspec is enabled by default for the PS4 by the driver, and also
2107 // enabled for Microsoft Extensions or Borland Extensions, here.
2109 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a
2110 // CUDA extension. However, it is required for supporting
2111 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has
2112 // been rewritten in terms of something more generic, remove the Opts.CUDA
2114 Opts.DeclSpecKeyword =
2115 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec,
2116 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA));
2118 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
2119 switch (llvm::StringSwitch<unsigned>(A->getValue())
2120 .Case("target", LangOptions::ASMM_Target)
2121 .Case("no", LangOptions::ASMM_Off)
2122 .Case("yes", LangOptions::ASMM_On)
2125 Diags.Report(diag::err_drv_invalid_value)
2126 << "-faddress-space-map-mangling=" << A->getValue();
2128 case LangOptions::ASMM_Target:
2129 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
2131 case LangOptions::ASMM_On:
2132 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
2134 case LangOptions::ASMM_Off:
2135 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
2140 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
2141 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
2142 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
2145 LangOptions::PPTMK_FullGeneralitySingleInheritance)
2147 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
2149 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
2150 .Default(LangOptions::PPTMK_BestCase);
2151 if (InheritanceModel == LangOptions::PPTMK_BestCase)
2152 Diags.Report(diag::err_drv_invalid_value)
2153 << "-fms-memptr-rep=" << A->getValue();
2155 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
2158 // Check for MS default calling conventions being specified.
2159 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) {
2160 LangOptions::DefaultCallingConvention DefaultCC =
2161 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(
2163 .Case("cdecl", LangOptions::DCC_CDecl)
2164 .Case("fastcall", LangOptions::DCC_FastCall)
2165 .Case("stdcall", LangOptions::DCC_StdCall)
2166 .Case("vectorcall", LangOptions::DCC_VectorCall)
2167 .Default(LangOptions::DCC_None);
2168 if (DefaultCC == LangOptions::DCC_None)
2169 Diags.Report(diag::err_drv_invalid_value)
2170 << "-fdefault-calling-conv=" << A->getValue();
2172 llvm::Triple T(TargetOpts.Triple);
2173 llvm::Triple::ArchType Arch = T.getArch();
2174 bool emitError = (DefaultCC == LangOptions::DCC_FastCall ||
2175 DefaultCC == LangOptions::DCC_StdCall) &&
2176 Arch != llvm::Triple::x86;
2177 emitError |= DefaultCC == LangOptions::DCC_VectorCall &&
2178 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64);
2180 Diags.Report(diag::err_drv_argument_not_allowed_with)
2181 << A->getSpelling() << T.getTriple();
2183 Opts.setDefaultCallingConv(DefaultCC);
2187 if (Arg *A = Args.getLastArg(OPT_mrtd)) {
2188 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None)
2189 Diags.Report(diag::err_drv_argument_not_allowed_with)
2190 << A->getSpelling() << "-fdefault-calling-conv";
2192 llvm::Triple T(TargetOpts.Triple);
2193 if (T.getArch() != llvm::Triple::x86)
2194 Diags.Report(diag::err_drv_argument_not_allowed_with)
2195 << A->getSpelling() << T.getTriple();
2197 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall);
2201 // Check if -fopenmp is specified.
2202 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0;
2204 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls);
2205 Opts.OpenMPIsDevice =
2206 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device);
2210 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags);
2212 Opts.OpenMP = Version;
2213 // Provide diagnostic when a given target is not expected to be an OpenMP
2215 if (!Opts.OpenMPIsDevice) {
2216 switch (T.getArch()) {
2219 // Add unsupported host targets here:
2220 case llvm::Triple::nvptx:
2221 case llvm::Triple::nvptx64:
2222 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported)
2223 << TargetOpts.Triple;
2229 // Get the OpenMP target triples if any.
2230 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) {
2232 for (unsigned i = 0; i < A->getNumValues(); ++i) {
2233 llvm::Triple TT(A->getValue(i));
2235 if (TT.getArch() == llvm::Triple::UnknownArch)
2236 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i);
2238 Opts.OMPTargetTriples.push_back(TT);
2242 // Get OpenMP host file path if any and report if a non existent file is
2244 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) {
2245 Opts.OMPHostIRFile = A->getValue();
2246 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile))
2247 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found)
2248 << Opts.OMPHostIRFile;
2251 // Record whether the __DEPRECATED define was requested.
2252 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
2253 OPT_fno_deprecated_macro,
2256 // FIXME: Eliminate this dependency.
2257 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
2258 OptSize = getOptimizationLevelSize(Args);
2259 Opts.Optimize = Opt != 0;
2260 Opts.OptimizeSize = OptSize != 0;
2262 // This is the __NO_INLINE__ define, which just depends on things like the
2263 // optimization level and -fno-inline, not actually whether the backend has
2264 // inlining enabled.
2265 Opts.NoInlineDefine = !Opts.Optimize;
2266 if (Arg *InlineArg = Args.getLastArg(
2267 options::OPT_finline_functions, options::OPT_finline_hint_functions,
2268 options::OPT_fno_inline_functions, options::OPT_fno_inline))
2269 if (InlineArg->getOption().matches(options::OPT_fno_inline))
2270 Opts.NoInlineDefine = true;
2272 Opts.FastMath = Args.hasArg(OPT_ffast_math) ||
2273 Args.hasArg(OPT_cl_fast_relaxed_math);
2274 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) ||
2275 Args.hasArg(OPT_cl_finite_math_only) ||
2276 Args.hasArg(OPT_cl_fast_relaxed_math);
2277 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
2278 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
2279 Args.hasArg(OPT_cl_fast_relaxed_math);
2281 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
2282 StringRef Val = A->getValue();
2284 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast);
2285 else if (Val == "on")
2286 Opts.setDefaultFPContractMode(LangOptions::FPC_On);
2287 else if (Val == "off")
2288 Opts.setDefaultFPContractMode(LangOptions::FPC_Off);
2290 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
2293 Opts.RetainCommentsFromSystemHeaders =
2294 Args.hasArg(OPT_fretain_comments_from_system_headers);
2296 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
2299 Diags.Report(diag::err_drv_invalid_value)
2300 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
2302 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
2303 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
2304 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
2305 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
2308 // Parse -fsanitize= arguments.
2309 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
2310 Diags, Opts.Sanitize);
2311 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here.
2312 Opts.SanitizeAddressFieldPadding =
2313 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags);
2314 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist);
2316 // -fxray-instrument
2317 Opts.XRayInstrument =
2318 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false);
2320 // -fxray-{always,never}-instrument= filenames.
2321 Opts.XRayAlwaysInstrumentFiles =
2322 Args.getAllArgValues(OPT_fxray_always_instrument);
2323 Opts.XRayNeverInstrumentFiles =
2324 Args.getAllArgValues(OPT_fxray_never_instrument);
2326 // -fallow-editor-placeholders
2327 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders);
2330 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
2331 FileManager &FileMgr,
2332 DiagnosticsEngine &Diags) {
2333 using namespace options;
2334 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
2335 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
2336 if (const Arg *A = Args.getLastArg(OPT_token_cache))
2337 Opts.TokenCache = A->getValue();
2339 Opts.TokenCache = Opts.ImplicitPTHInclude;
2340 Opts.UsePredefines = !Args.hasArg(OPT_undef);
2341 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
2342 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
2343 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors);
2345 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
2346 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl))
2347 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
2349 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
2350 StringRef Value(A->getValue());
2351 size_t Comma = Value.find(',');
2353 unsigned EndOfLine = 0;
2355 if (Comma == StringRef::npos ||
2356 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
2357 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
2358 Diags.Report(diag::err_drv_preamble_format);
2360 Opts.PrecompiledPreambleBytes.first = Bytes;
2361 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
2365 // Add macros from the command line.
2366 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) {
2367 if (A->getOption().matches(OPT_D))
2368 Opts.addMacroDef(A->getValue());
2370 Opts.addMacroUndef(A->getValue());
2373 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
2375 // Add the ordered list of -includes.
2376 for (const Arg *A : Args.filtered(OPT_include))
2377 Opts.Includes.emplace_back(A->getValue());
2379 for (const Arg *A : Args.filtered(OPT_chain_include))
2380 Opts.ChainedIncludes.emplace_back(A->getValue());
2382 for (const Arg *A : Args.filtered(OPT_remap_file)) {
2383 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
2385 if (Split.second.empty()) {
2386 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
2390 Opts.addRemappedFile(Split.first, Split.second);
2393 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
2394 StringRef Name = A->getValue();
2395 unsigned Library = llvm::StringSwitch<unsigned>(Name)
2396 .Case("libc++", ARCXX_libcxx)
2397 .Case("libstdc++", ARCXX_libstdcxx)
2398 .Case("none", ARCXX_nolib)
2401 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
2403 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
2407 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
2409 frontend::ActionKind Action) {
2410 using namespace options;
2413 case frontend::ASTDeclList:
2414 case frontend::ASTDump:
2415 case frontend::ASTPrint:
2416 case frontend::ASTView:
2417 case frontend::EmitAssembly:
2418 case frontend::EmitBC:
2419 case frontend::EmitHTML:
2420 case frontend::EmitLLVM:
2421 case frontend::EmitLLVMOnly:
2422 case frontend::EmitCodeGenOnly:
2423 case frontend::EmitObj:
2424 case frontend::FixIt:
2425 case frontend::GenerateModule:
2426 case frontend::GenerateModuleInterface:
2427 case frontend::GeneratePCH:
2428 case frontend::GeneratePTH:
2429 case frontend::ParseSyntaxOnly:
2430 case frontend::ModuleFileInfo:
2431 case frontend::VerifyPCH:
2432 case frontend::PluginAction:
2433 case frontend::PrintDeclContext:
2434 case frontend::RewriteObjC:
2435 case frontend::RewriteTest:
2436 case frontend::RunAnalysis:
2437 case frontend::MigrateSource:
2441 case frontend::DumpRawTokens:
2442 case frontend::DumpTokens:
2443 case frontend::InitOnly:
2444 case frontend::PrintPreamble:
2445 case frontend::PrintPreprocessedInput:
2446 case frontend::RewriteMacros:
2447 case frontend::RunPreprocessorOnly:
2448 Opts.ShowCPP = !Args.hasArg(OPT_dM);
2452 Opts.ShowComments = Args.hasArg(OPT_C);
2453 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
2454 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
2455 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
2456 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI);
2457 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
2458 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives);
2461 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args,
2462 DiagnosticsEngine &Diags) {
2463 using namespace options;
2464 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
2465 if (Arg *A = Args.getLastArg(OPT_meabi)) {
2466 StringRef Value = A->getValue();
2467 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value)
2468 .Case("default", llvm::EABI::Default)
2469 .Case("4", llvm::EABI::EABI4)
2470 .Case("5", llvm::EABI::EABI5)
2471 .Case("gnu", llvm::EABI::GNU)
2472 .Default(llvm::EABI::Unknown);
2473 if (EABIVersion == llvm::EABI::Unknown)
2474 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
2477 Opts.EABIVersion = Value;
2479 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
2480 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
2481 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
2482 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
2483 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
2484 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ);
2485 // Use the default target triple if unspecified.
2486 if (Opts.Triple.empty())
2487 Opts.Triple = llvm::sys::getDefaultTargetTriple();
2488 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ);
2491 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
2492 const char *const *ArgBegin,
2493 const char *const *ArgEnd,
2494 DiagnosticsEngine &Diags) {
2495 bool Success = true;
2497 // Parse the arguments.
2498 std::unique_ptr<OptTable> Opts = createDriverOptTable();
2499 const unsigned IncludedFlagsBitmask = options::CC1Option;
2500 unsigned MissingArgIndex, MissingArgCount;
2502 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex,
2503 MissingArgCount, IncludedFlagsBitmask);
2504 LangOptions &LangOpts = *Res.getLangOpts();
2506 // Check for missing argument error.
2507 if (MissingArgCount) {
2508 Diags.Report(diag::err_drv_missing_argument)
2509 << Args.getArgString(MissingArgIndex) << MissingArgCount;
2513 // Issue errors on unknown arguments.
2514 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) {
2515 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args);
2519 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
2520 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args);
2521 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args);
2523 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags,
2524 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/);
2525 ParseCommentArgs(LangOpts.CommentOpts, Args);
2526 ParseFileSystemArgs(Res.getFileSystemOpts(), Args);
2527 // FIXME: We shouldn't have to pass the DashX option around here
2528 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags,
2529 LangOpts.IsHeaderFile);
2530 ParseTargetArgs(Res.getTargetOpts(), Args, Diags);
2531 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
2532 Res.getTargetOpts());
2533 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args,
2534 Res.getFileSystemOpts().WorkingDir);
2535 if (DashX == IK_AST || DashX == IK_LLVM_IR) {
2536 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
2537 // PassManager in BackendUtil.cpp. They need to be initializd no matter
2538 // what the input type is.
2539 if (Args.hasArg(OPT_fobjc_arc))
2540 LangOpts.ObjCAutoRefCount = 1;
2541 // PIClevel and PIELevel are needed during code generation and this should be
2542 // set regardless of the input type.
2543 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
2544 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie);
2545 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
2546 Diags, LangOpts.Sanitize);
2548 // Other LangOpts are only initialzed when the input is not AST or LLVM IR.
2549 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(),
2550 Res.getPreprocessorOpts(), Diags);
2551 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
2552 LangOpts.ObjCExceptions = 1;
2555 if (LangOpts.CUDA) {
2556 // During CUDA device-side compilation, the aux triple is the
2557 // triple used for host compilation.
2558 if (LangOpts.CUDAIsDevice)
2559 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
2562 // FIXME: Override value name discarding when asan or msan is used because the
2563 // backend passes depend on the name of the alloca in order to print out
2565 Res.getCodeGenOpts().DiscardValueNames &=
2566 !LangOpts.Sanitize.has(SanitizerKind::Address) &&
2567 !LangOpts.Sanitize.has(SanitizerKind::Memory);
2569 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of
2570 // PCH file and find the original header name. Remove the need to do that in
2571 // ParsePreprocessorArgs and remove the FileManager
2572 // parameters from the function and the "FileManager.h" #include.
2573 FileManager FileMgr(Res.getFileSystemOpts());
2574 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags);
2575 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args,
2576 Res.getFrontendOpts().ProgramAction);
2578 // Turn on -Wspir-compat for SPIR target.
2579 llvm::Triple T(Res.getTargetOpts().Triple);
2580 auto Arch = T.getArch();
2581 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) {
2582 Res.getDiagnosticOpts().Warnings.push_back("spir-compat");
2587 std::string CompilerInvocation::getModuleHash() const {
2588 // Note: For QoI reasons, the things we use as a hash here should all be
2589 // dumped via the -module-info flag.
2590 using llvm::hash_code;
2591 using llvm::hash_value;
2592 using llvm::hash_combine;
2594 // Start the signature with the compiler version.
2595 // FIXME: We'd rather use something more cryptographically sound than
2596 // CityHash, but this will do for now.
2597 hash_code code = hash_value(getClangFullRepositoryVersion());
2599 // Extend the signature with the language options
2600 #define LANGOPT(Name, Bits, Default, Description) \
2601 code = hash_combine(code, LangOpts->Name);
2602 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
2603 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
2604 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
2605 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
2606 #include "clang/Basic/LangOptions.def"
2608 for (StringRef Feature : LangOpts->ModuleFeatures)
2609 code = hash_combine(code, Feature);
2611 // Extend the signature with the target options.
2612 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
2614 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i)
2615 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]);
2617 // Extend the signature with preprocessor options.
2618 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
2619 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
2620 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
2622 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator
2623 I = getPreprocessorOpts().Macros.begin(),
2624 IEnd = getPreprocessorOpts().Macros.end();
2626 // If we're supposed to ignore this macro for the purposes of modules,
2627 // don't put it into the hash.
2628 if (!hsOpts.ModulesIgnoreMacros.empty()) {
2629 // Check whether we're ignoring this macro.
2630 StringRef MacroDef = I->first;
2631 if (hsOpts.ModulesIgnoreMacros.count(
2632 llvm::CachedHashString(MacroDef.split('=').first)))
2636 code = hash_combine(code, I->first, I->second);
2639 // Extend the signature with the sysroot and other header search options.
2640 code = hash_combine(code, hsOpts.Sysroot,
2641 hsOpts.ModuleFormat,
2642 hsOpts.UseDebugInfo,
2643 hsOpts.UseBuiltinIncludes,
2644 hsOpts.UseStandardSystemIncludes,
2645 hsOpts.UseStandardCXXIncludes,
2647 hsOpts.ModulesValidateDiagnosticOptions);
2648 code = hash_combine(code, hsOpts.ResourceDir);
2650 // Extend the signature with the user build path.
2651 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
2653 // Extend the signature with the module file extensions.
2654 const FrontendOptions &frontendOpts = getFrontendOpts();
2655 for (const auto &ext : frontendOpts.ModuleFileExtensions) {
2656 code = ext->hashExtension(code);
2659 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
2664 template<typename IntTy>
2665 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
2667 DiagnosticsEngine *Diags) {
2668 IntTy Res = Default;
2669 if (Arg *A = Args.getLastArg(Id)) {
2670 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
2672 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)
2680 // Declared in clang/Frontend/Utils.h.
2681 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
2682 DiagnosticsEngine *Diags) {
2683 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags);
2686 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
2688 DiagnosticsEngine *Diags) {
2689 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags);
2692 void BuryPointer(const void *Ptr) {
2693 // This function may be called only a small fixed amount of times per each
2694 // invocation, otherwise we do actually have a leak which we want to report.
2695 // If this function is called more than kGraveYardMaxSize times, the pointers
2696 // will not be properly buried and a leak detector will report a leak, which
2697 // is what we want in such case.
2698 static const size_t kGraveYardMaxSize = 16;
2699 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize];
2700 static std::atomic<unsigned> GraveYardSize;
2701 unsigned Idx = GraveYardSize++;
2702 if (Idx >= kGraveYardMaxSize)
2704 GraveYard[Idx] = Ptr;
2707 IntrusiveRefCntPtr<vfs::FileSystem>
2708 createVFSFromCompilerInvocation(const CompilerInvocation &CI,
2709 DiagnosticsEngine &Diags) {
2710 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
2711 return vfs::getRealFileSystem();
2713 IntrusiveRefCntPtr<vfs::OverlayFileSystem>
2714 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem()));
2715 // earlier vfs files are on the bottom
2716 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
2717 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
2718 llvm::MemoryBuffer::getFile(File);
2720 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
2721 return IntrusiveRefCntPtr<vfs::FileSystem>();
2724 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML(
2725 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File);
2727 Diags.Report(diag::err_invalid_vfs_overlay) << File;
2728 return IntrusiveRefCntPtr<vfs::FileSystem>();
2730 Overlay->pushOverlay(FS);
2734 } // end namespace clang