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 "clang/Basic/FileManager.h"
12 #include "clang/Basic/Version.h"
13 #include "clang/Config/config.h"
14 #include "clang/Driver/DriverDiagnostic.h"
15 #include "clang/Driver/Options.h"
16 #include "clang/Driver/Util.h"
17 #include "clang/Frontend/FrontendDiagnostic.h"
18 #include "clang/Frontend/LangStandard.h"
19 #include "clang/Frontend/Utils.h"
20 #include "clang/Lex/HeaderSearchOptions.h"
21 #include "clang/Serialization/ASTReader.h"
22 #include "llvm/ADT/Hashing.h"
23 #include "llvm/ADT/STLExtras.h"
24 #include "llvm/ADT/SmallVector.h"
25 #include "llvm/ADT/StringExtras.h"
26 #include "llvm/ADT/StringSwitch.h"
27 #include "llvm/ADT/Triple.h"
28 #include "llvm/Option/Arg.h"
29 #include "llvm/Option/ArgList.h"
30 #include "llvm/Option/OptTable.h"
31 #include "llvm/Option/Option.h"
32 #include "llvm/Support/CodeGen.h"
33 #include "llvm/Support/ErrorHandling.h"
34 #include "llvm/Support/FileSystem.h"
35 #include "llvm/Support/Host.h"
36 #include "llvm/Support/Path.h"
37 #include "llvm/Support/Process.h"
41 #include <system_error>
42 using namespace clang;
44 //===----------------------------------------------------------------------===//
46 //===----------------------------------------------------------------------===//
48 CompilerInvocationBase::CompilerInvocationBase()
49 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
50 DiagnosticOpts(new DiagnosticOptions()),
51 HeaderSearchOpts(new HeaderSearchOptions()),
52 PreprocessorOpts(new PreprocessorOptions()) {}
54 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X)
55 : RefCountedBase<CompilerInvocation>(),
56 LangOpts(new LangOptions(*X.getLangOpts())),
57 TargetOpts(new TargetOptions(X.getTargetOpts())),
58 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
59 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
60 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {}
62 CompilerInvocationBase::~CompilerInvocationBase() {}
64 //===----------------------------------------------------------------------===//
65 // Deserialization (from args)
66 //===----------------------------------------------------------------------===//
68 using namespace clang::driver;
69 using namespace clang::driver::options;
70 using namespace llvm::opt;
74 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
75 DiagnosticsEngine &Diags) {
76 unsigned DefaultOpt = 0;
77 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable))
80 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
81 if (A->getOption().matches(options::OPT_O0))
84 if (A->getOption().matches(options::OPT_Ofast))
87 assert (A->getOption().matches(options::OPT_O));
89 StringRef S(A->getValue());
90 if (S == "s" || S == "z" || S.empty())
93 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags);
99 static unsigned getOptimizationLevelSize(ArgList &Args) {
100 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
101 if (A->getOption().matches(options::OPT_O)) {
102 switch (A->getValue()[0]) {
115 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
116 OptSpecifier GroupWithValue,
117 std::vector<std::string> &Diagnostics) {
118 for (Arg *A : Args.filtered(Group)) {
119 if (A->getOption().getKind() == Option::FlagClass) {
120 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
121 // its name (minus the "W" or "R" at the beginning) to the warning list.
122 Diagnostics.push_back(A->getOption().getName().drop_front(1));
123 } else if (A->getOption().matches(GroupWithValue)) {
124 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group.
125 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-"));
127 // Otherwise, add its value (for OPT_W_Joined and similar).
128 for (const char *Arg : A->getValues())
129 Diagnostics.emplace_back(Arg);
134 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
135 DiagnosticsEngine &Diags) {
136 using namespace options;
138 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
139 StringRef Name = A->getValue();
140 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
141 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
142 .Case(CMDFLAG, NAME##Model)
143 #include "clang/StaticAnalyzer/Core/Analyses.def"
145 if (Value == NumStores) {
146 Diags.Report(diag::err_drv_invalid_value)
147 << A->getAsString(Args) << Name;
150 Opts.AnalysisStoreOpt = Value;
154 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
155 StringRef Name = A->getValue();
156 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
157 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
158 .Case(CMDFLAG, NAME##Model)
159 #include "clang/StaticAnalyzer/Core/Analyses.def"
160 .Default(NumConstraints);
161 if (Value == NumConstraints) {
162 Diags.Report(diag::err_drv_invalid_value)
163 << A->getAsString(Args) << Name;
166 Opts.AnalysisConstraintsOpt = Value;
170 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
171 StringRef Name = A->getValue();
172 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
173 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
174 .Case(CMDFLAG, PD_##NAME)
175 #include "clang/StaticAnalyzer/Core/Analyses.def"
176 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
177 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
178 Diags.Report(diag::err_drv_invalid_value)
179 << A->getAsString(Args) << Name;
182 Opts.AnalysisDiagOpt = Value;
186 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
187 StringRef Name = A->getValue();
188 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
189 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
191 #include "clang/StaticAnalyzer/Core/Analyses.def"
192 .Default(NumPurgeModes);
193 if (Value == NumPurgeModes) {
194 Diags.Report(diag::err_drv_invalid_value)
195 << A->getAsString(Args) << Name;
198 Opts.AnalysisPurgeOpt = Value;
202 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
203 StringRef Name = A->getValue();
204 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
205 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
207 #include "clang/StaticAnalyzer/Core/Analyses.def"
208 .Default(NumInliningModes);
209 if (Value == NumInliningModes) {
210 Diags.Report(diag::err_drv_invalid_value)
211 << A->getAsString(Args) << Name;
214 Opts.InliningMode = Value;
218 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
219 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks);
221 Opts.visualizeExplodedGraphWithGraphViz =
222 Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
223 Opts.visualizeExplodedGraphWithUbiGraph =
224 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
225 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
226 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
227 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
228 Opts.AnalyzeNestedBlocks =
229 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
230 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume);
231 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
232 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
233 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
234 Opts.maxBlockVisitOnPath =
235 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags);
236 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
237 Opts.InlineMaxStackDepth =
238 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth,
239 Opts.InlineMaxStackDepth, Diags);
241 Opts.CheckersControlList.clear();
243 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) {
245 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
246 // We can have a list of comma separated checker names, e.g:
247 // '-analyzer-checker=cocoa,unix'
248 StringRef checkerList = A->getValue();
249 SmallVector<StringRef, 4> checkers;
250 checkerList.split(checkers, ",");
251 for (StringRef checker : checkers)
252 Opts.CheckersControlList.emplace_back(checker, enable);
255 // Go through the analyzer configuration options.
256 for (const Arg *A : Args.filtered(OPT_analyzer_config)) {
258 // We can have a list of comma separated config names, e.g:
259 // '-analyzer-config key1=val1,key2=val2'
260 StringRef configList = A->getValue();
261 SmallVector<StringRef, 4> configVals;
262 configList.split(configVals, ",");
263 for (unsigned i = 0, e = configVals.size(); i != e; ++i) {
265 std::tie(key, val) = configVals[i].split("=");
267 Diags.Report(SourceLocation(),
268 diag::err_analyzer_config_no_value) << configVals[i];
272 if (val.find('=') != StringRef::npos) {
273 Diags.Report(SourceLocation(),
274 diag::err_analyzer_config_multiple_values)
279 Opts.Config[key] = val;
286 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
287 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
288 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
292 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
293 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
294 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
297 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) {
298 if (Arg *A = Args.getLastArg(OPT_mcode_model)) {
299 StringRef Value = A->getValue();
300 if (Value == "small" || Value == "kernel" || Value == "medium" ||
303 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
308 /// \brief Create a new Regex instance out of the string value in \p RpassArg.
309 /// It returns a pointer to the newly generated Regex instance.
310 static std::shared_ptr<llvm::Regex>
311 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args,
313 StringRef Val = RpassArg->getValue();
314 std::string RegexError;
315 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val);
316 if (!Pattern->isValid(RegexError)) {
317 Diags.Report(diag::err_drv_optimization_remark_pattern)
318 << RegexError << RpassArg->getAsString(Args);
324 static bool parseDiagnosticLevelMask(StringRef FlagName,
325 const std::vector<std::string> &Levels,
326 DiagnosticsEngine *Diags,
327 DiagnosticLevelMask &M) {
329 for (const auto &Level : Levels) {
330 DiagnosticLevelMask const PM =
331 llvm::StringSwitch<DiagnosticLevelMask>(Level)
332 .Case("note", DiagnosticLevelMask::Note)
333 .Case("remark", DiagnosticLevelMask::Remark)
334 .Case("warning", DiagnosticLevelMask::Warning)
335 .Case("error", DiagnosticLevelMask::Error)
336 .Default(DiagnosticLevelMask::None);
337 if (PM == DiagnosticLevelMask::None) {
340 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level;
347 static void parseSanitizerKinds(StringRef FlagName,
348 const std::vector<std::string> &Sanitizers,
349 DiagnosticsEngine &Diags, SanitizerSet &S) {
350 for (const auto &Sanitizer : Sanitizers) {
351 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false);
353 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer;
359 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
360 DiagnosticsEngine &Diags,
361 const TargetOptions &TargetOpts) {
362 using namespace options;
365 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
366 // TODO: This could be done in Driver
367 unsigned MaxOptLevel = 3;
368 if (OptimizationLevel > MaxOptLevel) {
369 // If the optimization level is not supported, fall back on the default
371 Diags.Report(diag::warn_drv_optimization_value)
372 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
373 OptimizationLevel = MaxOptLevel;
375 Opts.OptimizationLevel = OptimizationLevel;
377 // We must always run at least the always inlining pass.
379 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
380 : CodeGenOptions::OnlyAlwaysInlining);
381 // -fno-inline-functions overrides OptimizationLevel > 1.
382 Opts.NoInline = Args.hasArg(OPT_fno_inline);
383 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ?
384 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining());
386 if (Arg *A = Args.getLastArg(OPT_fveclib)) {
387 StringRef Name = A->getValue();
388 if (Name == "Accelerate")
389 Opts.setVecLib(CodeGenOptions::Accelerate);
390 else if (Name == "none")
391 Opts.setVecLib(CodeGenOptions::NoLibrary);
393 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
396 if (Args.hasArg(OPT_gline_tables_only)) {
397 Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly);
398 } else if (Args.hasArg(OPT_g_Flag) || Args.hasArg(OPT_gdwarf_2) ||
399 Args.hasArg(OPT_gdwarf_3) || Args.hasArg(OPT_gdwarf_4)) {
400 bool Default = false;
401 // Until dtrace (via CTF) and LLDB can deal with distributed debug info,
402 // Darwin and FreeBSD default to standalone/full debug info.
403 if (llvm::Triple(TargetOpts.Triple).isOSDarwin() ||
404 llvm::Triple(TargetOpts.Triple).isOSFreeBSD())
407 if (Args.hasFlag(OPT_fstandalone_debug, OPT_fno_standalone_debug, Default))
408 Opts.setDebugInfo(CodeGenOptions::FullDebugInfo);
410 Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo);
412 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
413 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
414 if (Args.hasArg(OPT_gdwarf_2))
415 Opts.DwarfVersion = 2;
416 else if (Args.hasArg(OPT_gdwarf_3))
417 Opts.DwarfVersion = 3;
418 else if (Args.hasArg(OPT_gdwarf_4))
419 Opts.DwarfVersion = 4;
420 else if (Opts.getDebugInfo() != CodeGenOptions::NoDebugInfo)
421 // Default Dwarf version is 4 if we are generating debug information.
422 Opts.DwarfVersion = 4;
425 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists))
426 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
428 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
429 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
430 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
431 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
432 OPT_fuse_register_sized_bitfield_access);
433 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
434 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
435 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
436 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
437 Opts.NoCommon = Args.hasArg(OPT_fno_common);
438 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
439 Opts.OptimizeSize = getOptimizationLevelSize(Args);
440 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
441 Args.hasArg(OPT_ffreestanding));
443 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
444 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize));
445 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
447 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
448 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
449 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
450 Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate) ||
451 Args.hasArg(OPT_fprofile_instr_generate_EQ);
452 Opts.InstrProfileOutput = Args.getLastArgValue(OPT_fprofile_instr_generate_EQ);
453 Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ);
454 Opts.CoverageMapping = Args.hasArg(OPT_fcoverage_mapping);
455 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
456 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
457 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
458 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
459 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
460 Opts.CodeModel = getCodeModel(Args, Diags);
461 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
462 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim);
463 Opts.DisableFree = Args.hasArg(OPT_disable_free);
464 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
465 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
466 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable);
467 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
468 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
469 Args.hasArg(OPT_cl_finite_math_only) ||
470 Args.hasArg(OPT_cl_fast_relaxed_math));
471 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
472 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
473 Args.hasArg(OPT_cl_finite_math_only) ||
474 Args.hasArg(OPT_cl_fast_relaxed_math));
475 Opts.NoSignedZeros = Args.hasArg(OPT_fno_signed_zeros);
476 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
477 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
478 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
479 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
480 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
481 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
482 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
483 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
484 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
485 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
486 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
487 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
488 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
489 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
490 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
491 Args.hasArg(OPT_cl_fast_relaxed_math);
492 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
493 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
494 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
495 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
496 Diags.Report(diag::err_drv_invalid_value)
497 << Args.getLastArg(OPT_mthread_model)->getAsString(Args)
499 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
500 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
502 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
503 OPT_fno_function_sections, false);
504 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
505 OPT_fno_data_sections, false);
506 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
507 OPT_fno_unique_section_names, true);
509 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
511 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile);
513 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive);
514 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
515 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
517 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
518 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
520 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
521 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
522 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
523 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
524 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file);
525 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
526 Opts.CoverageNoFunctionNamesInData =
527 Args.hasArg(OPT_coverage_no_function_names_in_data);
528 Opts.CoverageExitBlockBeforeBody =
529 Args.hasArg(OPT_coverage_exit_block_before_body);
530 if (Args.hasArg(OPT_coverage_version_EQ)) {
531 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
532 if (CoverageVersion.size() != 4) {
533 Diags.Report(diag::err_drv_invalid_value)
534 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
537 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
542 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
543 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
544 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
545 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections);
546 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
547 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file);
548 Opts.SanitizeCoverageType =
549 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags);
550 Opts.SanitizeCoverageIndirectCalls =
551 Args.hasArg(OPT_fsanitize_coverage_indirect_calls);
552 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb);
553 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp);
554 Opts.SanitizeCoverage8bitCounters =
555 Args.hasArg(OPT_fsanitize_coverage_8bit_counters);
556 Opts.SanitizeMemoryTrackOrigins =
557 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
559 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
560 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
561 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
562 StringRef Val = A->getValue();
563 unsigned StackAlignment = Opts.StackAlignment;
564 Val.getAsInteger(10, StackAlignment);
565 Opts.StackAlignment = StackAlignment;
568 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) {
569 StringRef Val = A->getValue();
570 unsigned StackProbeSize = Opts.StackProbeSize;
571 Val.getAsInteger(0, StackProbeSize);
572 Opts.StackProbeSize = StackProbeSize;
575 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
576 StringRef Name = A->getValue();
577 unsigned Method = llvm::StringSwitch<unsigned>(Name)
578 .Case("legacy", CodeGenOptions::Legacy)
579 .Case("non-legacy", CodeGenOptions::NonLegacy)
580 .Case("mixed", CodeGenOptions::Mixed)
583 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
586 Opts.setObjCDispatchMethod(
587 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
591 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
592 StringRef Name = A->getValue();
593 unsigned Model = llvm::StringSwitch<unsigned>(Name)
594 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
595 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
596 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
597 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
600 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
603 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
607 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
608 StringRef Val = A->getValue();
610 Opts.setFPContractMode(CodeGenOptions::FPC_Fast);
611 else if (Val == "on")
612 Opts.setFPContractMode(CodeGenOptions::FPC_On);
613 else if (Val == "off")
614 Opts.setFPContractMode(CodeGenOptions::FPC_Off);
616 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
619 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
620 if (A->getOption().matches(OPT_fpcc_struct_return)) {
621 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
623 assert(A->getOption().matches(OPT_freg_struct_return));
624 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
628 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
629 bool NeedLocTracking = false;
631 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
632 Opts.OptimizationRemarkPattern =
633 GenerateOptimizationRemarkRegex(Diags, Args, A);
634 NeedLocTracking = true;
637 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
638 Opts.OptimizationRemarkMissedPattern =
639 GenerateOptimizationRemarkRegex(Diags, Args, A);
640 NeedLocTracking = true;
643 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
644 Opts.OptimizationRemarkAnalysisPattern =
645 GenerateOptimizationRemarkRegex(Diags, Args, A);
646 NeedLocTracking = true;
649 // If the user requested to use a sample profile for PGO, then the
650 // backend will need to track source location information so the profile
651 // can be incorporated into the IR.
652 if (!Opts.SampleProfileFile.empty())
653 NeedLocTracking = true;
655 // If the user requested a flag that requires source locations available in
656 // the backend, make sure that the backend tracks source location information.
657 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo)
658 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly);
660 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file);
662 // Parse -fsanitize-recover= arguments.
663 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
664 parseSanitizerKinds("-fsanitize-recover=",
665 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
666 Opts.SanitizeRecover);
667 parseSanitizerKinds("-fsanitize-trap=",
668 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags,
671 Opts.CudaGpuBinaryFileNames =
672 Args.getAllArgValues(OPT_fcuda_include_gpubinary);
677 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
679 using namespace options;
680 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
681 Opts.Targets = Args.getAllArgValues(OPT_MT);
682 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
683 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
684 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
685 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
686 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
687 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
688 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes);
689 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
690 Opts.ModuleDependencyOutputDir =
691 Args.getLastArgValue(OPT_module_dependency_dir);
692 if (Args.hasArg(OPT_MV))
693 Opts.OutputFormat = DependencyOutputFormat::NMake;
696 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
697 DiagnosticsEngine *Diags) {
698 using namespace options;
701 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
703 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
704 Opts.DiagnosticSerializationFile = A->getValue();
705 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
706 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
707 Opts.Pedantic = Args.hasArg(OPT_pedantic);
708 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
709 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
710 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics);
711 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
714 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
715 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
716 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
718 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
720 // Default behavior is to not to show note include stacks.
721 Opts.ShowNoteIncludeStack = false;
722 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
723 OPT_fno_diagnostics_show_note_include_stack))
724 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
725 Opts.ShowNoteIncludeStack = true;
727 StringRef ShowOverloads =
728 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
729 if (ShowOverloads == "best")
730 Opts.setShowOverloads(Ovl_Best);
731 else if (ShowOverloads == "all")
732 Opts.setShowOverloads(Ovl_All);
736 Diags->Report(diag::err_drv_invalid_value)
737 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
741 StringRef ShowCategory =
742 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
743 if (ShowCategory == "none")
744 Opts.ShowCategories = 0;
745 else if (ShowCategory == "id")
746 Opts.ShowCategories = 1;
747 else if (ShowCategory == "name")
748 Opts.ShowCategories = 2;
752 Diags->Report(diag::err_drv_invalid_value)
753 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
758 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
759 if (Format == "clang")
760 Opts.setFormat(DiagnosticOptions::Clang);
761 else if (Format == "msvc")
762 Opts.setFormat(DiagnosticOptions::MSVC);
763 else if (Format == "msvc-fallback") {
764 Opts.setFormat(DiagnosticOptions::MSVC);
765 Opts.CLFallbackMode = true;
766 } else if (Format == "vi")
767 Opts.setFormat(DiagnosticOptions::Vi);
771 Diags->Report(diag::err_drv_invalid_value)
772 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
776 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
777 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
778 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
779 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
780 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
781 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=",
782 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ),
784 if (Args.hasArg(OPT_verify_ignore_unexpected))
785 DiagMask = DiagnosticLevelMask::All;
786 Opts.setVerifyIgnoreUnexpected(DiagMask);
787 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
788 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
789 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
790 Opts.MacroBacktraceLimit =
791 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
792 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
793 Opts.TemplateBacktraceLimit = getLastArgIntValue(
794 Args, OPT_ftemplate_backtrace_limit,
795 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
796 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
797 Args, OPT_fconstexpr_backtrace_limit,
798 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
799 Opts.SpellCheckingLimit = getLastArgIntValue(
800 Args, OPT_fspell_checking_limit,
801 DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
802 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
803 DiagnosticOptions::DefaultTabStop, Diags);
804 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
805 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
807 Diags->Report(diag::warn_ignoring_ftabstop_value)
808 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
810 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
811 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
812 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
817 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
818 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
821 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
822 DiagnosticsEngine &Diags) {
823 using namespace options;
824 Opts.ProgramAction = frontend::ParseSyntaxOnly;
825 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
826 switch (A->getOption().getID()) {
828 llvm_unreachable("Invalid option in group!");
830 Opts.ProgramAction = frontend::ASTDeclList; break;
832 case OPT_ast_dump_lookups:
833 Opts.ProgramAction = frontend::ASTDump; break;
835 Opts.ProgramAction = frontend::ASTPrint; break;
837 Opts.ProgramAction = frontend::ASTView; break;
838 case OPT_dump_raw_tokens:
839 Opts.ProgramAction = frontend::DumpRawTokens; break;
840 case OPT_dump_tokens:
841 Opts.ProgramAction = frontend::DumpTokens; break;
843 Opts.ProgramAction = frontend::EmitAssembly; break;
844 case OPT_emit_llvm_bc:
845 Opts.ProgramAction = frontend::EmitBC; break;
847 Opts.ProgramAction = frontend::EmitHTML; break;
849 Opts.ProgramAction = frontend::EmitLLVM; break;
850 case OPT_emit_llvm_only:
851 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
852 case OPT_emit_codegen_only:
853 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
855 Opts.ProgramAction = frontend::EmitObj; break;
857 Opts.FixItSuffix = A->getValue();
860 Opts.ProgramAction = frontend::FixIt; break;
861 case OPT_emit_module:
862 Opts.ProgramAction = frontend::GenerateModule; break;
864 Opts.ProgramAction = frontend::GeneratePCH; break;
866 Opts.ProgramAction = frontend::GeneratePTH; break;
868 Opts.ProgramAction = frontend::InitOnly; break;
869 case OPT_fsyntax_only:
870 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
871 case OPT_module_file_info:
872 Opts.ProgramAction = frontend::ModuleFileInfo; break;
874 Opts.ProgramAction = frontend::VerifyPCH; break;
875 case OPT_print_decl_contexts:
876 Opts.ProgramAction = frontend::PrintDeclContext; break;
877 case OPT_print_preamble:
878 Opts.ProgramAction = frontend::PrintPreamble; break;
880 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
881 case OPT_rewrite_macros:
882 Opts.ProgramAction = frontend::RewriteMacros; break;
883 case OPT_rewrite_objc:
884 Opts.ProgramAction = frontend::RewriteObjC; break;
885 case OPT_rewrite_test:
886 Opts.ProgramAction = frontend::RewriteTest; break;
888 Opts.ProgramAction = frontend::RunAnalysis; break;
890 Opts.ProgramAction = frontend::MigrateSource; break;
892 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
896 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
897 Opts.Plugins.emplace_back(A->getValue(0));
898 Opts.ProgramAction = frontend::PluginAction;
899 Opts.ActionName = A->getValue();
901 for (const Arg *AA : Args.filtered(OPT_plugin_arg))
902 if (AA->getValue(0) == Opts.ActionName)
903 Opts.PluginArgs.emplace_back(AA->getValue(1));
906 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
907 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size());
908 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i)
909 for (const Arg *A : Args.filtered(OPT_plugin_arg))
910 if (A->getValue(0) == Opts.AddPluginActions[i])
911 Opts.AddPluginArgs[i].emplace_back(A->getValue(1));
913 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
914 Opts.CodeCompletionAt =
915 ParsedSourceLocation::FromString(A->getValue());
916 if (Opts.CodeCompletionAt.FileName.empty())
917 Diags.Report(diag::err_drv_invalid_value)
918 << A->getAsString(Args) << A->getValue();
920 Opts.DisableFree = Args.hasArg(OPT_disable_free);
922 Opts.OutputFile = Args.getLastArgValue(OPT_o);
923 Opts.Plugins = Args.getAllArgValues(OPT_load);
924 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
925 Opts.ShowHelp = Args.hasArg(OPT_help);
926 Opts.ShowStats = Args.hasArg(OPT_print_stats);
927 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
928 Opts.ShowVersion = Args.hasArg(OPT_version);
929 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
930 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
931 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
932 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
933 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
934 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
935 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump);
936 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
937 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
938 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
939 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
940 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file);
941 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
943 Opts.CodeCompleteOpts.IncludeMacros
944 = Args.hasArg(OPT_code_completion_macros);
945 Opts.CodeCompleteOpts.IncludeCodePatterns
946 = Args.hasArg(OPT_code_completion_patterns);
947 Opts.CodeCompleteOpts.IncludeGlobals
948 = !Args.hasArg(OPT_no_code_completion_globals);
949 Opts.CodeCompleteOpts.IncludeBriefComments
950 = Args.hasArg(OPT_code_completion_brief_comments);
952 Opts.OverrideRecordLayoutsFile
953 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
954 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
956 OPT_arcmt_migrate)) {
957 switch (A->getOption().getID()) {
959 llvm_unreachable("missed a case");
960 case OPT_arcmt_check:
961 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
963 case OPT_arcmt_modify:
964 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
966 case OPT_arcmt_migrate:
967 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
971 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
972 Opts.ARCMTMigrateReportOut
973 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
974 Opts.ARCMTMigrateEmitARCErrors
975 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
977 if (Args.hasArg(OPT_objcmt_migrate_literals))
978 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
979 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
980 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
981 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
982 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
983 if (Args.hasArg(OPT_objcmt_migrate_property))
984 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
985 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
986 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
987 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
988 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
989 if (Args.hasArg(OPT_objcmt_migrate_annotation))
990 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
991 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
992 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
993 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
994 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
995 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
996 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
997 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
998 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
999 if (Args.hasArg(OPT_objcmt_atomic_property))
1000 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
1001 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
1002 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
1003 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
1004 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
1005 if (Args.hasArg(OPT_objcmt_migrate_all))
1006 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
1008 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
1010 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
1011 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
1012 Diags.Report(diag::err_drv_argument_not_allowed_with)
1013 << "ARC migration" << "ObjC migration";
1016 InputKind DashX = IK_None;
1017 if (const Arg *A = Args.getLastArg(OPT_x)) {
1018 DashX = llvm::StringSwitch<InputKind>(A->getValue())
1020 .Case("cl", IK_OpenCL)
1021 .Case("cuda", IK_CUDA)
1022 .Case("c++", IK_CXX)
1023 .Case("objective-c", IK_ObjC)
1024 .Case("objective-c++", IK_ObjCXX)
1025 .Case("cpp-output", IK_PreprocessedC)
1026 .Case("assembler-with-cpp", IK_Asm)
1027 .Case("c++-cpp-output", IK_PreprocessedCXX)
1028 .Case("cuda-cpp-output", IK_PreprocessedCuda)
1029 .Case("objective-c-cpp-output", IK_PreprocessedObjC)
1030 .Case("objc-cpp-output", IK_PreprocessedObjC)
1031 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
1032 .Case("objc++-cpp-output", IK_PreprocessedObjCXX)
1033 .Case("c-header", IK_C)
1034 .Case("cl-header", IK_OpenCL)
1035 .Case("objective-c-header", IK_ObjC)
1036 .Case("c++-header", IK_CXX)
1037 .Case("objective-c++-header", IK_ObjCXX)
1038 .Cases("ast", "pcm", IK_AST)
1039 .Case("ir", IK_LLVM_IR)
1041 if (DashX == IK_None)
1042 Diags.Report(diag::err_drv_invalid_value)
1043 << A->getAsString(Args) << A->getValue();
1046 // '-' is the default input if none is given.
1047 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1048 Opts.Inputs.clear();
1050 Inputs.push_back("-");
1051 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1052 InputKind IK = DashX;
1053 if (IK == IK_None) {
1054 IK = FrontendOptions::getInputKindForExtension(
1055 StringRef(Inputs[i]).rsplit('.').second);
1056 // FIXME: Remove this hack.
1060 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK);
1066 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1068 std::string ClangExecutable =
1069 llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
1070 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable);
1072 // Compute the path to the resource directory.
1073 StringRef ClangResourceDir(CLANG_RESOURCE_DIR);
1074 SmallString<128> P(Dir);
1075 if (ClangResourceDir != "") {
1076 llvm::sys::path::append(P, ClangResourceDir);
1078 StringRef ClangLibdirSuffix(CLANG_LIBDIR_SUFFIX);
1079 llvm::sys::path::append(P, "..", Twine("lib") + ClangLibdirSuffix, "clang",
1080 CLANG_VERSION_STRING);
1086 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
1087 using namespace options;
1088 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1089 Opts.Verbose = Args.hasArg(OPT_v);
1090 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1091 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
1092 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1093 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
1094 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
1095 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1096 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path);
1097 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
1098 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
1099 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps);
1100 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd);
1101 Opts.ModuleCachePruneInterval =
1102 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
1103 Opts.ModuleCachePruneAfter =
1104 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
1105 Opts.ModulesValidateOncePerBuildSession =
1106 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
1107 Opts.BuildSessionTimestamp =
1108 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
1109 Opts.ModulesValidateSystemHeaders =
1110 Args.hasArg(OPT_fmodules_validate_system_headers);
1112 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) {
1113 StringRef MacroDef = A->getValue();
1114 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first);
1117 // Add -I..., -F..., and -index-header-map options in order.
1118 bool IsIndexHeaderMap = false;
1119 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) {
1120 if (A->getOption().matches(OPT_index_header_map)) {
1121 // -index-header-map applies to the next -I or -F.
1122 IsIndexHeaderMap = true;
1126 frontend::IncludeDirGroup Group =
1127 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled;
1129 Opts.AddPath(A->getValue(), Group,
1130 /*IsFramework=*/A->getOption().matches(OPT_F), true);
1131 IsIndexHeaderMap = false;
1134 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
1135 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
1137 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) {
1138 if (A->getOption().matches(OPT_iprefix))
1139 Prefix = A->getValue();
1140 else if (A->getOption().matches(OPT_iwithprefix))
1141 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true);
1143 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true);
1146 for (const Arg *A : Args.filtered(OPT_idirafter))
1147 Opts.AddPath(A->getValue(), frontend::After, false, true);
1148 for (const Arg *A : Args.filtered(OPT_iquote))
1149 Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
1150 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
1151 Opts.AddPath(A->getValue(), frontend::System, false,
1152 !A->getOption().matches(OPT_iwithsysroot));
1153 for (const Arg *A : Args.filtered(OPT_iframework))
1154 Opts.AddPath(A->getValue(), frontend::System, true, true);
1156 // Add the paths for the various language specific isystem flags.
1157 for (const Arg *A : Args.filtered(OPT_c_isystem))
1158 Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
1159 for (const Arg *A : Args.filtered(OPT_cxx_isystem))
1160 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
1161 for (const Arg *A : Args.filtered(OPT_objc_isystem))
1162 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
1163 for (const Arg *A : Args.filtered(OPT_objcxx_isystem))
1164 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
1166 // Add the internal paths from a driver that detects standard include paths.
1168 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) {
1169 frontend::IncludeDirGroup Group = frontend::System;
1170 if (A->getOption().matches(OPT_internal_externc_isystem))
1171 Group = frontend::ExternCSystem;
1172 Opts.AddPath(A->getValue(), Group, false, true);
1175 // Add the path prefixes which are implicitly treated as being system headers.
1177 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix))
1178 Opts.AddSystemHeaderPrefix(
1179 A->getValue(), A->getOption().matches(OPT_system_header_prefix));
1181 for (const Arg *A : Args.filtered(OPT_ivfsoverlay))
1182 Opts.AddVFSOverlayFile(A->getValue());
1185 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
1186 LangStandard::Kind LangStd) {
1187 // Set some properties which depend solely on the input kind; it would be nice
1188 // to move these to the language standard, and have the driver resolve the
1189 // input kind + language standard.
1191 Opts.AsmPreprocessor = 1;
1192 } else if (IK == IK_ObjC ||
1194 IK == IK_PreprocessedObjC ||
1195 IK == IK_PreprocessedObjCXX) {
1196 Opts.ObjC1 = Opts.ObjC2 = 1;
1199 if (LangStd == LangStandard::lang_unspecified) {
1200 // Based on the base language, pick one.
1205 llvm_unreachable("Invalid input kind!");
1207 LangStd = LangStandard::lang_opencl;
1210 case IK_PreprocessedCuda:
1211 LangStd = LangStandard::lang_cuda;
1215 case IK_PreprocessedC:
1217 case IK_PreprocessedObjC:
1218 LangStd = LangStandard::lang_gnu11;
1221 case IK_PreprocessedCXX:
1223 case IK_PreprocessedObjCXX:
1224 LangStd = LangStandard::lang_gnucxx98;
1229 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1230 Opts.LineComment = Std.hasLineComments();
1231 Opts.C99 = Std.isC99();
1232 Opts.C11 = Std.isC11();
1233 Opts.CPlusPlus = Std.isCPlusPlus();
1234 Opts.CPlusPlus11 = Std.isCPlusPlus11();
1235 Opts.CPlusPlus14 = Std.isCPlusPlus14();
1236 Opts.CPlusPlus1z = Std.isCPlusPlus1z();
1237 Opts.Digraphs = Std.hasDigraphs();
1238 Opts.GNUMode = Std.isGNUMode();
1239 Opts.GNUInline = Std.isC89();
1240 Opts.HexFloats = Std.hasHexFloats();
1241 Opts.ImplicitInt = Std.hasImplicitInt();
1243 // Set OpenCL Version.
1244 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL;
1245 if (LangStd == LangStandard::lang_opencl)
1246 Opts.OpenCLVersion = 100;
1247 else if (LangStd == LangStandard::lang_opencl11)
1248 Opts.OpenCLVersion = 110;
1249 else if (LangStd == LangStandard::lang_opencl12)
1250 Opts.OpenCLVersion = 120;
1251 else if (LangStd == LangStandard::lang_opencl20)
1252 Opts.OpenCLVersion = 200;
1254 // OpenCL has some additional defaults.
1257 Opts.CXXOperatorNames = 1;
1258 Opts.LaxVectorConversions = 0;
1259 Opts.DefaultFPContract = 1;
1260 Opts.NativeHalfType = 1;
1263 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda ||
1264 LangStd == LangStandard::lang_cuda;
1266 // OpenCL and C++ both have bool, true, false keywords.
1267 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1269 // OpenCL has half keyword
1270 Opts.Half = Opts.OpenCL;
1272 // C++ has wchar_t keyword.
1273 Opts.WChar = Opts.CPlusPlus;
1275 Opts.GNUKeywords = Opts.GNUMode;
1276 Opts.CXXOperatorNames = Opts.CPlusPlus;
1278 Opts.DollarIdents = !Opts.AsmPreprocessor;
1281 /// Attempt to parse a visibility value out of the given argument.
1282 static Visibility parseVisibility(Arg *arg, ArgList &args,
1283 DiagnosticsEngine &diags) {
1284 StringRef value = arg->getValue();
1285 if (value == "default") {
1286 return DefaultVisibility;
1287 } else if (value == "hidden") {
1288 return HiddenVisibility;
1289 } else if (value == "protected") {
1290 // FIXME: diagnose if target does not support protected visibility
1291 return ProtectedVisibility;
1294 diags.Report(diag::err_drv_invalid_value)
1295 << arg->getAsString(args) << value;
1296 return DefaultVisibility;
1299 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
1300 DiagnosticsEngine &Diags) {
1301 // FIXME: Cleanup per-file based stuff.
1302 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1303 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
1304 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1305 #define LANGSTANDARD(id, name, desc, features) \
1306 .Case(name, LangStandard::lang_##id)
1307 #include "clang/Frontend/LangStandards.def"
1308 .Default(LangStandard::lang_unspecified);
1309 if (LangStd == LangStandard::lang_unspecified)
1310 Diags.Report(diag::err_drv_invalid_value)
1311 << A->getAsString(Args) << A->getValue();
1313 // Valid standard, check to make sure language and standard are
1315 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1319 case IK_PreprocessedC:
1320 case IK_PreprocessedObjC:
1321 if (!(Std.isC89() || Std.isC99()))
1322 Diags.Report(diag::err_drv_argument_not_allowed_with)
1323 << A->getAsString(Args) << "C/ObjC";
1327 case IK_PreprocessedCXX:
1328 case IK_PreprocessedObjCXX:
1329 if (!Std.isCPlusPlus())
1330 Diags.Report(diag::err_drv_argument_not_allowed_with)
1331 << A->getAsString(Args) << "C++/ObjC++";
1335 Diags.Report(diag::err_drv_argument_not_allowed_with)
1336 << A->getAsString(Args) << "OpenCL";
1339 case IK_PreprocessedCuda:
1340 if (!Std.isCPlusPlus())
1341 Diags.Report(diag::err_drv_argument_not_allowed_with)
1342 << A->getAsString(Args) << "CUDA";
1350 // -cl-std only applies for OpenCL language standards.
1351 // Override the -std option in this case.
1352 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
1353 LangStandard::Kind OpenCLLangStd
1354 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1355 .Case("CL", LangStandard::lang_opencl)
1356 .Case("CL1.1", LangStandard::lang_opencl11)
1357 .Case("CL1.2", LangStandard::lang_opencl12)
1358 .Case("CL2.0", LangStandard::lang_opencl20)
1359 .Default(LangStandard::lang_unspecified);
1361 if (OpenCLLangStd == LangStandard::lang_unspecified) {
1362 Diags.Report(diag::err_drv_invalid_value)
1363 << A->getAsString(Args) << A->getValue();
1366 LangStd = OpenCLLangStd;
1369 CompilerInvocation::setLangDefaults(Opts, IK, LangStd);
1371 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1372 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1373 // while a subset (the non-C++ GNU keywords) is provided by GCC's
1374 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1375 // name, as it doesn't seem a useful distinction.
1376 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
1379 if (Args.hasArg(OPT_fno_operator_names))
1380 Opts.CXXOperatorNames = 0;
1382 if (Args.hasArg(OPT_fcuda_is_device))
1383 Opts.CUDAIsDevice = 1;
1385 if (Args.hasArg(OPT_fcuda_allow_host_calls_from_host_device))
1386 Opts.CUDAAllowHostCallsFromHostDevice = 1;
1388 if (Args.hasArg(OPT_fcuda_disable_target_call_checks))
1389 Opts.CUDADisableTargetCallChecks = 1;
1392 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
1393 StringRef value = arg->getValue();
1394 if (Opts.ObjCRuntime.tryParse(value))
1395 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
1398 if (Args.hasArg(OPT_fobjc_gc_only))
1399 Opts.setGC(LangOptions::GCOnly);
1400 else if (Args.hasArg(OPT_fobjc_gc))
1401 Opts.setGC(LangOptions::HybridGC);
1402 else if (Args.hasArg(OPT_fobjc_arc)) {
1403 Opts.ObjCAutoRefCount = 1;
1404 if (!Opts.ObjCRuntime.allowsARC())
1405 Diags.Report(diag::err_arc_unsupported_on_runtime);
1407 // Only set ObjCARCWeak if ARC is enabled.
1408 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
1409 Opts.ObjCARCWeak = 1;
1411 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak();
1414 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
1415 Opts.ObjCInferRelatedResultType = 0;
1417 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
1418 Opts.ObjCSubscriptingLegacyRuntime =
1419 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
1422 if (Args.hasArg(OPT_fgnu89_inline)) {
1424 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline"
1430 if (Args.hasArg(OPT_fapple_kext)) {
1431 if (!Opts.CPlusPlus)
1432 Diags.Report(diag::warn_c_kext);
1437 if (Args.hasArg(OPT_print_ivar_layout))
1438 Opts.ObjCGCBitmapPrint = 1;
1439 if (Args.hasArg(OPT_fno_constant_cfstrings))
1440 Opts.NoConstantCFStrings = 1;
1442 if (Args.hasArg(OPT_faltivec))
1445 if (Args.hasArg(OPT_pthread))
1446 Opts.POSIXThreads = 1;
1448 // The value-visibility mode defaults to "default".
1449 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
1450 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
1452 Opts.setValueVisibilityMode(DefaultVisibility);
1455 // The type-visibility mode defaults to the value-visibility mode.
1456 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
1457 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
1459 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
1462 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
1463 Opts.InlineVisibilityHidden = 1;
1465 if (Args.hasArg(OPT_ftrapv)) {
1466 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
1467 // Set the handler, if one is specified.
1468 Opts.OverflowHandler =
1469 Args.getLastArgValue(OPT_ftrapv_handler);
1471 else if (Args.hasArg(OPT_fwrapv))
1472 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
1474 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
1475 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
1476 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
1477 Opts.MSCompatibilityVersion = 0;
1478 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) {
1480 if (VT.tryParse(A->getValue()))
1481 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
1483 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
1484 VT.getMinor().getValueOr(0) * 100000 +
1485 VT.getSubminor().getValueOr(0);
1488 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1489 // is specified, or -std is set to a conforming mode.
1490 // Trigraphs are disabled by default in c++1z onwards.
1491 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z;
1493 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs);
1495 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
1496 OPT_fno_dollars_in_identifiers,
1498 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
1499 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags);
1500 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
1501 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
1502 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
1504 if (Args.hasArg(OPT_fno_lax_vector_conversions))
1505 Opts.LaxVectorConversions = 0;
1506 if (Args.hasArg(OPT_fno_threadsafe_statics))
1507 Opts.ThreadsafeStatics = 0;
1508 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
1509 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
1510 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
1511 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
1512 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
1514 Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
1515 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
1516 Opts.Blocks = Args.hasArg(OPT_fblocks);
1517 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
1518 Opts.Modules = Args.hasArg(OPT_fmodules);
1519 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse);
1520 Opts.ModulesDeclUse =
1521 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
1522 Opts.ModulesLocalVisibility =
1523 Args.hasArg(OPT_fmodules_local_submodule_visibility);
1524 Opts.ModulesHideInternalLinkage =
1525 !Args.hasArg(OPT_fno_modules_hide_internal_linkage);
1526 Opts.ModulesSearchAll = Opts.Modules &&
1527 !Args.hasArg(OPT_fno_modules_search_all) &&
1528 Args.hasArg(OPT_fmodules_search_all);
1529 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
1530 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules);
1531 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
1532 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
1533 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false);
1534 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
1535 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
1536 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
1537 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
1538 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
1539 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation);
1540 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts);
1541 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
1542 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
1543 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
1544 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
1545 Opts.InstantiationDepth =
1546 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags);
1548 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
1549 Opts.ConstexprCallDepth =
1550 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
1551 Opts.ConstexprStepLimit =
1552 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
1553 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
1554 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
1555 Opts.NumLargeByValueCopy =
1556 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
1557 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
1558 Opts.ObjCConstantStringClass =
1559 Args.getLastArgValue(OPT_fconstant_string_class);
1560 Opts.ObjCDefaultSynthProperties =
1561 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
1562 Opts.EncodeExtendedBlockSig =
1563 Args.hasArg(OPT_fencode_extended_block_signature);
1564 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
1565 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
1566 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags);
1567 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
1568 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags);
1569 Opts.Static = Args.hasArg(OPT_static_define);
1570 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
1571 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
1572 || Args.hasArg(OPT_fdump_record_layouts);
1573 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
1574 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
1575 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
1576 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
1577 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
1578 Opts.MRTD = Args.hasArg(OPT_mrtd);
1579 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
1580 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
1581 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
1582 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
1583 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
1584 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
1585 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
1586 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name);
1587 Opts.AppExt = Args.hasArg(OPT_fapplication_extension);
1588 Opts.ImplementationOfModule =
1589 Args.getLastArgValue(OPT_fmodule_implementation_of);
1590 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature);
1591 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end());
1592 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type);
1593 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns);
1594 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm);
1596 if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() &&
1597 Opts.CurrentModule != Opts.ImplementationOfModule) {
1598 Diags.Report(diag::err_conflicting_module_names)
1599 << Opts.CurrentModule << Opts.ImplementationOfModule;
1602 // For now, we only support local submodule visibility in C++ (because we
1603 // heavily depend on the ODR for merging redefinitions).
1604 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus)
1605 Diags.Report(diag::err_drv_argument_not_allowed_with)
1606 << "-fmodules-local-submodule-visibility" << "C";
1608 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
1609 switch (llvm::StringSwitch<unsigned>(A->getValue())
1610 .Case("target", LangOptions::ASMM_Target)
1611 .Case("no", LangOptions::ASMM_Off)
1612 .Case("yes", LangOptions::ASMM_On)
1615 Diags.Report(diag::err_drv_invalid_value)
1616 << "-faddress-space-map-mangling=" << A->getValue();
1618 case LangOptions::ASMM_Target:
1619 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
1621 case LangOptions::ASMM_On:
1622 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
1624 case LangOptions::ASMM_Off:
1625 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
1630 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
1631 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
1632 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
1635 LangOptions::PPTMK_FullGeneralitySingleInheritance)
1637 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
1639 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
1640 .Default(LangOptions::PPTMK_BestCase);
1641 if (InheritanceModel == LangOptions::PPTMK_BestCase)
1642 Diags.Report(diag::err_drv_invalid_value)
1643 << "-fms-memptr-rep=" << A->getValue();
1645 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
1648 // Check if -fopenmp is specified.
1649 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp);
1651 // Record whether the __DEPRECATED define was requested.
1652 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
1653 OPT_fno_deprecated_macro,
1656 // FIXME: Eliminate this dependency.
1657 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
1658 OptSize = getOptimizationLevelSize(Args);
1659 Opts.Optimize = Opt != 0;
1660 Opts.OptimizeSize = OptSize != 0;
1662 // This is the __NO_INLINE__ define, which just depends on things like the
1663 // optimization level and -fno-inline, not actually whether the backend has
1664 // inlining enabled.
1665 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline);
1667 Opts.FastMath = Args.hasArg(OPT_ffast_math) ||
1668 Args.hasArg(OPT_cl_fast_relaxed_math);
1669 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) ||
1670 Args.hasArg(OPT_cl_finite_math_only) ||
1671 Args.hasArg(OPT_cl_fast_relaxed_math);
1673 Opts.RetainCommentsFromSystemHeaders =
1674 Args.hasArg(OPT_fretain_comments_from_system_headers);
1676 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
1679 Diags.Report(diag::err_drv_invalid_value)
1680 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
1682 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
1683 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
1684 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
1685 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
1688 // Parse -fsanitize= arguments.
1689 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
1690 Diags, Opts.Sanitize);
1691 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here.
1692 Opts.SanitizeAddressFieldPadding =
1693 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags);
1694 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist);
1697 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
1698 FileManager &FileMgr,
1699 DiagnosticsEngine &Diags) {
1700 using namespace options;
1701 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
1702 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
1703 if (const Arg *A = Args.getLastArg(OPT_token_cache))
1704 Opts.TokenCache = A->getValue();
1706 Opts.TokenCache = Opts.ImplicitPTHInclude;
1707 Opts.UsePredefines = !Args.hasArg(OPT_undef);
1708 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
1709 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
1711 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
1712 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl))
1713 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
1715 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
1716 StringRef Value(A->getValue());
1717 size_t Comma = Value.find(',');
1719 unsigned EndOfLine = 0;
1721 if (Comma == StringRef::npos ||
1722 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
1723 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
1724 Diags.Report(diag::err_drv_preamble_format);
1726 Opts.PrecompiledPreambleBytes.first = Bytes;
1727 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
1731 // Add macros from the command line.
1732 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) {
1733 if (A->getOption().matches(OPT_D))
1734 Opts.addMacroDef(A->getValue());
1736 Opts.addMacroUndef(A->getValue());
1739 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
1741 // Add the ordered list of -includes.
1742 for (const Arg *A : Args.filtered(OPT_include))
1743 Opts.Includes.emplace_back(A->getValue());
1745 for (const Arg *A : Args.filtered(OPT_chain_include))
1746 Opts.ChainedIncludes.emplace_back(A->getValue());
1748 // Include 'altivec.h' if -faltivec option present
1749 if (Args.hasArg(OPT_faltivec))
1750 Opts.Includes.emplace_back("altivec.h");
1752 for (const Arg *A : Args.filtered(OPT_remap_file)) {
1753 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
1755 if (Split.second.empty()) {
1756 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
1760 Opts.addRemappedFile(Split.first, Split.second);
1763 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
1764 StringRef Name = A->getValue();
1765 unsigned Library = llvm::StringSwitch<unsigned>(Name)
1766 .Case("libc++", ARCXX_libcxx)
1767 .Case("libstdc++", ARCXX_libstdcxx)
1768 .Case("none", ARCXX_nolib)
1771 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1773 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
1777 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
1779 frontend::ActionKind Action) {
1780 using namespace options;
1783 case frontend::ASTDeclList:
1784 case frontend::ASTDump:
1785 case frontend::ASTPrint:
1786 case frontend::ASTView:
1787 case frontend::EmitAssembly:
1788 case frontend::EmitBC:
1789 case frontend::EmitHTML:
1790 case frontend::EmitLLVM:
1791 case frontend::EmitLLVMOnly:
1792 case frontend::EmitCodeGenOnly:
1793 case frontend::EmitObj:
1794 case frontend::FixIt:
1795 case frontend::GenerateModule:
1796 case frontend::GeneratePCH:
1797 case frontend::GeneratePTH:
1798 case frontend::ParseSyntaxOnly:
1799 case frontend::ModuleFileInfo:
1800 case frontend::VerifyPCH:
1801 case frontend::PluginAction:
1802 case frontend::PrintDeclContext:
1803 case frontend::RewriteObjC:
1804 case frontend::RewriteTest:
1805 case frontend::RunAnalysis:
1806 case frontend::MigrateSource:
1810 case frontend::DumpRawTokens:
1811 case frontend::DumpTokens:
1812 case frontend::InitOnly:
1813 case frontend::PrintPreamble:
1814 case frontend::PrintPreprocessedInput:
1815 case frontend::RewriteMacros:
1816 case frontend::RunPreprocessorOnly:
1817 Opts.ShowCPP = !Args.hasArg(OPT_dM);
1821 Opts.ShowComments = Args.hasArg(OPT_C);
1822 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
1823 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
1824 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
1825 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
1826 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives);
1829 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
1830 using namespace options;
1831 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
1832 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
1833 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
1834 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
1835 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
1836 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
1837 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ);
1838 // Use the default target triple if unspecified.
1839 if (Opts.Triple.empty())
1840 Opts.Triple = llvm::sys::getDefaultTargetTriple();
1843 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
1844 const char *const *ArgBegin,
1845 const char *const *ArgEnd,
1846 DiagnosticsEngine &Diags) {
1847 bool Success = true;
1849 // Parse the arguments.
1850 std::unique_ptr<OptTable> Opts(createDriverOptTable());
1851 const unsigned IncludedFlagsBitmask = options::CC1Option;
1852 unsigned MissingArgIndex, MissingArgCount;
1854 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex,
1855 MissingArgCount, IncludedFlagsBitmask);
1857 // Check for missing argument error.
1858 if (MissingArgCount) {
1859 Diags.Report(diag::err_drv_missing_argument)
1860 << Args.getArgString(MissingArgIndex) << MissingArgCount;
1864 // Issue errors on unknown arguments.
1865 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) {
1866 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args);
1870 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
1871 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args);
1872 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args);
1873 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags);
1874 ParseCommentArgs(Res.getLangOpts()->CommentOpts, Args);
1875 ParseFileSystemArgs(Res.getFileSystemOpts(), Args);
1876 // FIXME: We shouldn't have to pass the DashX option around here
1877 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags);
1878 ParseTargetArgs(Res.getTargetOpts(), Args);
1879 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
1880 Res.getTargetOpts());
1881 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args);
1882 if (DashX != IK_AST && DashX != IK_LLVM_IR) {
1883 ParseLangArgs(*Res.getLangOpts(), Args, DashX, Diags);
1884 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
1885 Res.getLangOpts()->ObjCExceptions = 1;
1887 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of
1888 // PCH file and find the original header name. Remove the need to do that in
1889 // ParsePreprocessorArgs and remove the FileManager
1890 // parameters from the function and the "FileManager.h" #include.
1891 FileManager FileMgr(Res.getFileSystemOpts());
1892 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags);
1893 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args,
1894 Res.getFrontendOpts().ProgramAction);
1900 class ModuleSignature {
1901 SmallVector<uint64_t, 16> Data;
1906 ModuleSignature() : CurBit(0), CurValue(0) { }
1908 void add(uint64_t Value, unsigned Bits);
1909 void add(StringRef Value);
1912 llvm::APInt getAsInteger() const;
1916 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) {
1917 CurValue |= Value << CurBit;
1918 if (CurBit + NumBits < 64) {
1923 // Add the current word.
1924 Data.push_back(CurValue);
1927 CurValue = Value >> (64-CurBit);
1930 CurBit = (CurBit+NumBits) & 63;
1933 void ModuleSignature::flush() {
1937 Data.push_back(CurValue);
1942 void ModuleSignature::add(StringRef Value) {
1943 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I)
1947 llvm::APInt ModuleSignature::getAsInteger() const {
1948 return llvm::APInt(Data.size() * 64, Data);
1951 std::string CompilerInvocation::getModuleHash() const {
1952 // Note: For QoI reasons, the things we use as a hash here should all be
1953 // dumped via the -module-info flag.
1954 using llvm::hash_code;
1955 using llvm::hash_value;
1956 using llvm::hash_combine;
1958 // Start the signature with the compiler version.
1959 // FIXME: We'd rather use something more cryptographically sound than
1960 // CityHash, but this will do for now.
1961 hash_code code = hash_value(getClangFullRepositoryVersion());
1963 // Extend the signature with the language options
1964 #define LANGOPT(Name, Bits, Default, Description) \
1965 code = hash_combine(code, LangOpts->Name);
1966 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
1967 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
1968 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
1969 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
1970 #include "clang/Basic/LangOptions.def"
1972 for (StringRef Feature : LangOpts->ModuleFeatures)
1973 code = hash_combine(code, Feature);
1975 // Extend the signature with the target options.
1976 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
1978 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i)
1979 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]);
1981 // Extend the signature with preprocessor options.
1982 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
1983 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
1984 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
1986 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator
1987 I = getPreprocessorOpts().Macros.begin(),
1988 IEnd = getPreprocessorOpts().Macros.end();
1990 // If we're supposed to ignore this macro for the purposes of modules,
1991 // don't put it into the hash.
1992 if (!hsOpts.ModulesIgnoreMacros.empty()) {
1993 // Check whether we're ignoring this macro.
1994 StringRef MacroDef = I->first;
1995 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first))
1999 code = hash_combine(code, I->first, I->second);
2002 // Extend the signature with the sysroot.
2003 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes,
2004 hsOpts.UseStandardSystemIncludes,
2005 hsOpts.UseStandardCXXIncludes,
2007 code = hash_combine(code, hsOpts.ResourceDir);
2009 // Extend the signature with the user build path.
2010 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
2012 // Darwin-specific hack: if we have a sysroot, use the contents and
2013 // modification time of
2014 // $sysroot/System/Library/CoreServices/SystemVersion.plist
2015 // as part of the module hash.
2016 if (!hsOpts.Sysroot.empty()) {
2017 SmallString<128> systemVersionFile;
2018 systemVersionFile += hsOpts.Sysroot;
2019 llvm::sys::path::append(systemVersionFile, "System");
2020 llvm::sys::path::append(systemVersionFile, "Library");
2021 llvm::sys::path::append(systemVersionFile, "CoreServices");
2022 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist");
2024 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer =
2025 llvm::MemoryBuffer::getFile(systemVersionFile);
2027 code = hash_combine(code, buffer.get()->getBuffer());
2029 struct stat statBuf;
2030 if (stat(systemVersionFile.c_str(), &statBuf) == 0)
2031 code = hash_combine(code, statBuf.st_mtime);
2035 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
2040 template<typename IntTy>
2041 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
2043 DiagnosticsEngine *Diags) {
2044 IntTy Res = Default;
2045 if (Arg *A = Args.getLastArg(Id)) {
2046 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
2048 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)
2056 // Declared in clang/Frontend/Utils.h.
2057 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
2058 DiagnosticsEngine *Diags) {
2059 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags);
2062 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
2064 DiagnosticsEngine *Diags) {
2065 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags);
2068 void BuryPointer(const void *Ptr) {
2069 // This function may be called only a small fixed amount of times per each
2070 // invocation, otherwise we do actually have a leak which we want to report.
2071 // If this function is called more than kGraveYardMaxSize times, the pointers
2072 // will not be properly buried and a leak detector will report a leak, which
2073 // is what we want in such case.
2074 static const size_t kGraveYardMaxSize = 16;
2075 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize];
2076 static std::atomic<unsigned> GraveYardSize;
2077 unsigned Idx = GraveYardSize++;
2078 if (Idx >= kGraveYardMaxSize)
2080 GraveYard[Idx] = Ptr;
2083 IntrusiveRefCntPtr<vfs::FileSystem>
2084 createVFSFromCompilerInvocation(const CompilerInvocation &CI,
2085 DiagnosticsEngine &Diags) {
2086 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
2087 return vfs::getRealFileSystem();
2089 IntrusiveRefCntPtr<vfs::OverlayFileSystem>
2090 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem()));
2091 // earlier vfs files are on the bottom
2092 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
2093 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
2094 llvm::MemoryBuffer::getFile(File);
2096 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
2097 return IntrusiveRefCntPtr<vfs::FileSystem>();
2100 IntrusiveRefCntPtr<vfs::FileSystem> FS =
2101 vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/ nullptr);
2103 Diags.Report(diag::err_invalid_vfs_overlay) << File;
2104 return IntrusiveRefCntPtr<vfs::FileSystem>();
2106 Overlay->pushOverlay(FS);
2110 } // end namespace clang