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.push_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();
242 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker,
243 OPT_analyzer_disable_checker),
244 ie = Args.filtered_end(); it != ie; ++it) {
247 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
248 // We can have a list of comma separated checker names, e.g:
249 // '-analyzer-checker=cocoa,unix'
250 StringRef checkerList = A->getValue();
251 SmallVector<StringRef, 4> checkers;
252 checkerList.split(checkers, ",");
253 for (unsigned i = 0, e = checkers.size(); i != e; ++i)
254 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable));
257 // Go through the analyzer configuration options.
258 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_config),
259 ie = Args.filtered_end(); it != ie; ++it) {
262 // We can have a list of comma separated config names, e.g:
263 // '-analyzer-config key1=val1,key2=val2'
264 StringRef configList = A->getValue();
265 SmallVector<StringRef, 4> configVals;
266 configList.split(configVals, ",");
267 for (unsigned i = 0, e = configVals.size(); i != e; ++i) {
269 std::tie(key, val) = configVals[i].split("=");
271 Diags.Report(SourceLocation(),
272 diag::err_analyzer_config_no_value) << configVals[i];
276 if (val.find('=') != StringRef::npos) {
277 Diags.Report(SourceLocation(),
278 diag::err_analyzer_config_multiple_values)
283 Opts.Config[key] = val;
290 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
291 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
292 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
296 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
297 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
298 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
301 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) {
302 if (Arg *A = Args.getLastArg(OPT_mcode_model)) {
303 StringRef Value = A->getValue();
304 if (Value == "small" || Value == "kernel" || Value == "medium" ||
307 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
312 /// \brief Create a new Regex instance out of the string value in \p RpassArg.
313 /// It returns a pointer to the newly generated Regex instance.
314 static std::shared_ptr<llvm::Regex>
315 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args,
317 StringRef Val = RpassArg->getValue();
318 std::string RegexError;
319 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val);
320 if (!Pattern->isValid(RegexError)) {
321 Diags.Report(diag::err_drv_optimization_remark_pattern)
322 << RegexError << RpassArg->getAsString(Args);
328 static void parseSanitizerKinds(StringRef FlagName,
329 const std::vector<std::string> &Sanitizers,
330 DiagnosticsEngine &Diags, SanitizerSet &S) {
331 for (const auto &Sanitizer : Sanitizers) {
332 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false);
334 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer;
340 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
341 DiagnosticsEngine &Diags,
342 const TargetOptions &TargetOpts) {
343 using namespace options;
346 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
347 // TODO: This could be done in Driver
348 unsigned MaxOptLevel = 3;
349 if (OptimizationLevel > MaxOptLevel) {
350 // If the optimization level is not supported, fall back on the default
352 Diags.Report(diag::warn_drv_optimization_value)
353 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
354 OptimizationLevel = MaxOptLevel;
356 Opts.OptimizationLevel = OptimizationLevel;
358 // We must always run at least the always inlining pass.
360 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
361 : CodeGenOptions::OnlyAlwaysInlining);
362 // -fno-inline-functions overrides OptimizationLevel > 1.
363 Opts.NoInline = Args.hasArg(OPT_fno_inline);
364 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ?
365 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining());
367 if (Arg *A = Args.getLastArg(OPT_fveclib)) {
368 StringRef Name = A->getValue();
369 if (Name == "Accelerate")
370 Opts.setVecLib(CodeGenOptions::Accelerate);
371 else if (Name == "none")
372 Opts.setVecLib(CodeGenOptions::NoLibrary);
374 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
377 if (Args.hasArg(OPT_gline_tables_only)) {
378 Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly);
379 } else if (Args.hasArg(OPT_g_Flag) || Args.hasArg(OPT_gdwarf_2) ||
380 Args.hasArg(OPT_gdwarf_3) || Args.hasArg(OPT_gdwarf_4)) {
381 bool Default = false;
382 // Until dtrace (via CTF) and LLDB can deal with distributed debug info,
383 // Darwin and FreeBSD default to standalone/full debug info.
384 if (llvm::Triple(TargetOpts.Triple).isOSDarwin() ||
385 llvm::Triple(TargetOpts.Triple).isOSFreeBSD())
388 if (Args.hasFlag(OPT_fstandalone_debug, OPT_fno_standalone_debug, Default))
389 Opts.setDebugInfo(CodeGenOptions::FullDebugInfo);
391 Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo);
393 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
394 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
395 if (Args.hasArg(OPT_gdwarf_2))
396 Opts.DwarfVersion = 2;
397 else if (Args.hasArg(OPT_gdwarf_3))
398 Opts.DwarfVersion = 3;
399 else if (Args.hasArg(OPT_gdwarf_4))
400 Opts.DwarfVersion = 4;
401 else if (Opts.getDebugInfo() != CodeGenOptions::NoDebugInfo)
402 // Default Dwarf version is 4 if we are generating debug information.
403 Opts.DwarfVersion = 4;
406 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists))
407 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
409 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
410 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
411 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
412 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
413 OPT_fuse_register_sized_bitfield_access);
414 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
415 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
416 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
417 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
418 Opts.NoCommon = Args.hasArg(OPT_fno_common);
419 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
420 Opts.OptimizeSize = getOptimizationLevelSize(Args);
421 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
422 Args.hasArg(OPT_ffreestanding));
424 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
425 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize));
426 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
428 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
429 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
430 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
431 Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate) ||
432 Args.hasArg(OPT_fprofile_instr_generate_EQ);;
433 Opts.InstrProfileOutput = Args.getLastArgValue(OPT_fprofile_instr_generate_EQ);
434 Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ);
435 Opts.CoverageMapping = Args.hasArg(OPT_fcoverage_mapping);
436 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
437 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
438 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
439 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
440 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
441 Opts.CodeModel = getCodeModel(Args, Diags);
442 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
443 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim);
444 Opts.DisableFree = Args.hasArg(OPT_disable_free);
445 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
446 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
447 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable);
448 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
449 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
450 Args.hasArg(OPT_cl_finite_math_only) ||
451 Args.hasArg(OPT_cl_fast_relaxed_math));
452 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
453 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
454 Args.hasArg(OPT_cl_finite_math_only) ||
455 Args.hasArg(OPT_cl_fast_relaxed_math));
456 Opts.NoSignedZeros = Args.hasArg(OPT_fno_signed_zeros);
457 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
458 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
459 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
460 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
461 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
462 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
463 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
464 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
465 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
466 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
467 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
468 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
469 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
470 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
471 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
472 Args.hasArg(OPT_cl_fast_relaxed_math);
473 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
474 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
475 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
476 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
477 Diags.Report(diag::err_drv_invalid_value)
478 << Args.getLastArg(OPT_mthread_model)->getAsString(Args)
480 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
481 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
483 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
484 OPT_fno_function_sections, false);
485 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
486 OPT_fno_data_sections, false);
487 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
488 OPT_fno_unique_section_names, true);
490 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
492 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile);
494 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive);
495 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
496 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
498 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
499 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
501 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
502 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
503 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
504 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
505 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file);
506 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
507 Opts.CoverageNoFunctionNamesInData =
508 Args.hasArg(OPT_coverage_no_function_names_in_data);
509 Opts.CoverageExitBlockBeforeBody =
510 Args.hasArg(OPT_coverage_exit_block_before_body);
511 if (Args.hasArg(OPT_coverage_version_EQ)) {
512 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
513 if (CoverageVersion.size() != 4) {
514 Diags.Report(diag::err_drv_invalid_value)
515 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
518 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
523 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
524 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
525 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
526 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections);
527 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
528 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file);
529 Opts.SanitizeCoverageType =
530 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags);
531 Opts.SanitizeCoverageIndirectCalls =
532 Args.hasArg(OPT_fsanitize_coverage_indirect_calls);
533 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb);
534 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp);
535 Opts.SanitizeCoverage8bitCounters =
536 Args.hasArg(OPT_fsanitize_coverage_8bit_counters);
537 Opts.SanitizeMemoryTrackOrigins =
538 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
539 Opts.SanitizeUndefinedTrapOnError =
540 Args.hasArg(OPT_fsanitize_undefined_trap_on_error);
542 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
543 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
544 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
545 StringRef Val = A->getValue();
546 unsigned StackAlignment = Opts.StackAlignment;
547 Val.getAsInteger(10, StackAlignment);
548 Opts.StackAlignment = StackAlignment;
551 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) {
552 StringRef Val = A->getValue();
553 unsigned StackProbeSize = Opts.StackProbeSize;
554 Val.getAsInteger(0, StackProbeSize);
555 Opts.StackProbeSize = StackProbeSize;
558 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
559 StringRef Name = A->getValue();
560 unsigned Method = llvm::StringSwitch<unsigned>(Name)
561 .Case("legacy", CodeGenOptions::Legacy)
562 .Case("non-legacy", CodeGenOptions::NonLegacy)
563 .Case("mixed", CodeGenOptions::Mixed)
566 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
569 Opts.setObjCDispatchMethod(
570 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
574 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
575 StringRef Name = A->getValue();
576 unsigned Model = llvm::StringSwitch<unsigned>(Name)
577 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
578 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
579 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
580 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
583 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
586 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
590 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
591 StringRef Val = A->getValue();
593 Opts.setFPContractMode(CodeGenOptions::FPC_Fast);
594 else if (Val == "on")
595 Opts.setFPContractMode(CodeGenOptions::FPC_On);
596 else if (Val == "off")
597 Opts.setFPContractMode(CodeGenOptions::FPC_Off);
599 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
602 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
603 if (A->getOption().matches(OPT_fpcc_struct_return)) {
604 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
606 assert(A->getOption().matches(OPT_freg_struct_return));
607 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
611 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
612 bool NeedLocTracking = false;
614 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
615 Opts.OptimizationRemarkPattern =
616 GenerateOptimizationRemarkRegex(Diags, Args, A);
617 NeedLocTracking = true;
620 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
621 Opts.OptimizationRemarkMissedPattern =
622 GenerateOptimizationRemarkRegex(Diags, Args, A);
623 NeedLocTracking = true;
626 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
627 Opts.OptimizationRemarkAnalysisPattern =
628 GenerateOptimizationRemarkRegex(Diags, Args, A);
629 NeedLocTracking = true;
632 // If the user requested to use a sample profile for PGO, then the
633 // backend will need to track source location information so the profile
634 // can be incorporated into the IR.
635 if (!Opts.SampleProfileFile.empty())
636 NeedLocTracking = true;
638 // If the user requested a flag that requires source locations available in
639 // the backend, make sure that the backend tracks source location information.
640 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo)
641 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly);
643 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file);
645 // Parse -fsanitize-recover= arguments.
646 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
647 parseSanitizerKinds("-fsanitize-recover=",
648 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
649 Opts.SanitizeRecover);
651 Opts.CudaGpuBinaryFileNames =
652 Args.getAllArgValues(OPT_fcuda_include_gpubinary);
657 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
659 using namespace options;
660 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
661 Opts.Targets = Args.getAllArgValues(OPT_MT);
662 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
663 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
664 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
665 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
666 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
667 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
668 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes);
669 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
670 Opts.ModuleDependencyOutputDir =
671 Args.getLastArgValue(OPT_module_dependency_dir);
672 if (Args.hasArg(OPT_MV))
673 Opts.OutputFormat = DependencyOutputFormat::NMake;
676 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
677 DiagnosticsEngine *Diags) {
678 using namespace options;
681 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
683 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
684 Opts.DiagnosticSerializationFile = A->getValue();
685 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
686 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
687 Opts.Pedantic = Args.hasArg(OPT_pedantic);
688 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
689 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
690 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics);
691 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
694 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
695 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
696 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
698 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
700 // Default behavior is to not to show note include stacks.
701 Opts.ShowNoteIncludeStack = false;
702 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
703 OPT_fno_diagnostics_show_note_include_stack))
704 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
705 Opts.ShowNoteIncludeStack = true;
707 StringRef ShowOverloads =
708 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
709 if (ShowOverloads == "best")
710 Opts.setShowOverloads(Ovl_Best);
711 else if (ShowOverloads == "all")
712 Opts.setShowOverloads(Ovl_All);
716 Diags->Report(diag::err_drv_invalid_value)
717 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
721 StringRef ShowCategory =
722 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
723 if (ShowCategory == "none")
724 Opts.ShowCategories = 0;
725 else if (ShowCategory == "id")
726 Opts.ShowCategories = 1;
727 else if (ShowCategory == "name")
728 Opts.ShowCategories = 2;
732 Diags->Report(diag::err_drv_invalid_value)
733 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
738 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
739 if (Format == "clang")
740 Opts.setFormat(DiagnosticOptions::Clang);
741 else if (Format == "msvc")
742 Opts.setFormat(DiagnosticOptions::MSVC);
743 else if (Format == "msvc-fallback") {
744 Opts.setFormat(DiagnosticOptions::MSVC);
745 Opts.CLFallbackMode = true;
746 } else if (Format == "vi")
747 Opts.setFormat(DiagnosticOptions::Vi);
751 Diags->Report(diag::err_drv_invalid_value)
752 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
756 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
757 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
758 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
759 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
760 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
761 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
762 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
763 Opts.MacroBacktraceLimit =
764 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
765 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
766 Opts.TemplateBacktraceLimit = getLastArgIntValue(
767 Args, OPT_ftemplate_backtrace_limit,
768 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
769 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
770 Args, OPT_fconstexpr_backtrace_limit,
771 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
772 Opts.SpellCheckingLimit = getLastArgIntValue(
773 Args, OPT_fspell_checking_limit,
774 DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
775 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
776 DiagnosticOptions::DefaultTabStop, Diags);
777 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
778 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
780 Diags->Report(diag::warn_ignoring_ftabstop_value)
781 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
783 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
784 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
785 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
790 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
791 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
794 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
795 DiagnosticsEngine &Diags) {
796 using namespace options;
797 Opts.ProgramAction = frontend::ParseSyntaxOnly;
798 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
799 switch (A->getOption().getID()) {
801 llvm_unreachable("Invalid option in group!");
803 Opts.ProgramAction = frontend::ASTDeclList; break;
805 case OPT_ast_dump_lookups:
806 Opts.ProgramAction = frontend::ASTDump; break;
808 Opts.ProgramAction = frontend::ASTPrint; break;
810 Opts.ProgramAction = frontend::ASTView; break;
811 case OPT_dump_raw_tokens:
812 Opts.ProgramAction = frontend::DumpRawTokens; break;
813 case OPT_dump_tokens:
814 Opts.ProgramAction = frontend::DumpTokens; break;
816 Opts.ProgramAction = frontend::EmitAssembly; break;
817 case OPT_emit_llvm_bc:
818 Opts.ProgramAction = frontend::EmitBC; break;
820 Opts.ProgramAction = frontend::EmitHTML; break;
822 Opts.ProgramAction = frontend::EmitLLVM; break;
823 case OPT_emit_llvm_only:
824 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
825 case OPT_emit_codegen_only:
826 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
828 Opts.ProgramAction = frontend::EmitObj; break;
830 Opts.FixItSuffix = A->getValue();
833 Opts.ProgramAction = frontend::FixIt; break;
834 case OPT_emit_module:
835 Opts.ProgramAction = frontend::GenerateModule; break;
837 Opts.ProgramAction = frontend::GeneratePCH; break;
839 Opts.ProgramAction = frontend::GeneratePTH; break;
841 Opts.ProgramAction = frontend::InitOnly; break;
842 case OPT_fsyntax_only:
843 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
844 case OPT_module_file_info:
845 Opts.ProgramAction = frontend::ModuleFileInfo; break;
847 Opts.ProgramAction = frontend::VerifyPCH; break;
848 case OPT_print_decl_contexts:
849 Opts.ProgramAction = frontend::PrintDeclContext; break;
850 case OPT_print_preamble:
851 Opts.ProgramAction = frontend::PrintPreamble; break;
853 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
854 case OPT_rewrite_macros:
855 Opts.ProgramAction = frontend::RewriteMacros; break;
856 case OPT_rewrite_objc:
857 Opts.ProgramAction = frontend::RewriteObjC; break;
858 case OPT_rewrite_test:
859 Opts.ProgramAction = frontend::RewriteTest; break;
861 Opts.ProgramAction = frontend::RunAnalysis; break;
863 Opts.ProgramAction = frontend::MigrateSource; break;
865 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
869 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
870 Opts.Plugins.push_back(A->getValue(0));
871 Opts.ProgramAction = frontend::PluginAction;
872 Opts.ActionName = A->getValue();
874 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg),
875 end = Args.filtered_end(); it != end; ++it) {
876 if ((*it)->getValue(0) == Opts.ActionName)
877 Opts.PluginArgs.push_back((*it)->getValue(1));
881 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
882 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size());
883 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) {
884 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg),
885 end = Args.filtered_end(); it != end; ++it) {
886 if ((*it)->getValue(0) == Opts.AddPluginActions[i])
887 Opts.AddPluginArgs[i].push_back((*it)->getValue(1));
891 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
892 Opts.CodeCompletionAt =
893 ParsedSourceLocation::FromString(A->getValue());
894 if (Opts.CodeCompletionAt.FileName.empty())
895 Diags.Report(diag::err_drv_invalid_value)
896 << A->getAsString(Args) << A->getValue();
898 Opts.DisableFree = Args.hasArg(OPT_disable_free);
900 Opts.OutputFile = Args.getLastArgValue(OPT_o);
901 Opts.Plugins = Args.getAllArgValues(OPT_load);
902 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
903 Opts.ShowHelp = Args.hasArg(OPT_help);
904 Opts.ShowStats = Args.hasArg(OPT_print_stats);
905 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
906 Opts.ShowVersion = Args.hasArg(OPT_version);
907 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
908 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
909 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
910 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
911 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
912 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
913 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump);
914 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
915 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
916 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
917 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
918 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file);
919 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
921 Opts.CodeCompleteOpts.IncludeMacros
922 = Args.hasArg(OPT_code_completion_macros);
923 Opts.CodeCompleteOpts.IncludeCodePatterns
924 = Args.hasArg(OPT_code_completion_patterns);
925 Opts.CodeCompleteOpts.IncludeGlobals
926 = !Args.hasArg(OPT_no_code_completion_globals);
927 Opts.CodeCompleteOpts.IncludeBriefComments
928 = Args.hasArg(OPT_code_completion_brief_comments);
930 Opts.OverrideRecordLayoutsFile
931 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
932 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
934 OPT_arcmt_migrate)) {
935 switch (A->getOption().getID()) {
937 llvm_unreachable("missed a case");
938 case OPT_arcmt_check:
939 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
941 case OPT_arcmt_modify:
942 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
944 case OPT_arcmt_migrate:
945 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
949 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
950 Opts.ARCMTMigrateReportOut
951 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
952 Opts.ARCMTMigrateEmitARCErrors
953 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
955 if (Args.hasArg(OPT_objcmt_migrate_literals))
956 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
957 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
958 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
959 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
960 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
961 if (Args.hasArg(OPT_objcmt_migrate_property))
962 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
963 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
964 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
965 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
966 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
967 if (Args.hasArg(OPT_objcmt_migrate_annotation))
968 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
969 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
970 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
971 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
972 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
973 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
974 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
975 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
976 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
977 if (Args.hasArg(OPT_objcmt_atomic_property))
978 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
979 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
980 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
981 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
982 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
983 if (Args.hasArg(OPT_objcmt_migrate_all))
984 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
986 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
988 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
989 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
990 Diags.Report(diag::err_drv_argument_not_allowed_with)
991 << "ARC migration" << "ObjC migration";
994 InputKind DashX = IK_None;
995 if (const Arg *A = Args.getLastArg(OPT_x)) {
996 DashX = llvm::StringSwitch<InputKind>(A->getValue())
998 .Case("cl", IK_OpenCL)
999 .Case("cuda", IK_CUDA)
1000 .Case("c++", IK_CXX)
1001 .Case("objective-c", IK_ObjC)
1002 .Case("objective-c++", IK_ObjCXX)
1003 .Case("cpp-output", IK_PreprocessedC)
1004 .Case("assembler-with-cpp", IK_Asm)
1005 .Case("c++-cpp-output", IK_PreprocessedCXX)
1006 .Case("cuda-cpp-output", IK_PreprocessedCuda)
1007 .Case("objective-c-cpp-output", IK_PreprocessedObjC)
1008 .Case("objc-cpp-output", IK_PreprocessedObjC)
1009 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
1010 .Case("objc++-cpp-output", IK_PreprocessedObjCXX)
1011 .Case("c-header", IK_C)
1012 .Case("cl-header", IK_OpenCL)
1013 .Case("objective-c-header", IK_ObjC)
1014 .Case("c++-header", IK_CXX)
1015 .Case("objective-c++-header", IK_ObjCXX)
1016 .Cases("ast", "pcm", IK_AST)
1017 .Case("ir", IK_LLVM_IR)
1019 if (DashX == IK_None)
1020 Diags.Report(diag::err_drv_invalid_value)
1021 << A->getAsString(Args) << A->getValue();
1024 // '-' is the default input if none is given.
1025 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1026 Opts.Inputs.clear();
1028 Inputs.push_back("-");
1029 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1030 InputKind IK = DashX;
1031 if (IK == IK_None) {
1032 IK = FrontendOptions::getInputKindForExtension(
1033 StringRef(Inputs[i]).rsplit('.').second);
1034 // FIXME: Remove this hack.
1038 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK));
1044 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1046 std::string ClangExecutable =
1047 llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
1048 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable);
1050 // Compute the path to the resource directory.
1051 StringRef ClangResourceDir(CLANG_RESOURCE_DIR);
1052 SmallString<128> P(Dir);
1053 if (ClangResourceDir != "") {
1054 llvm::sys::path::append(P, ClangResourceDir);
1056 StringRef ClangLibdirSuffix(CLANG_LIBDIR_SUFFIX);
1057 llvm::sys::path::append(P, "..", Twine("lib") + ClangLibdirSuffix, "clang",
1058 CLANG_VERSION_STRING);
1064 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
1065 using namespace options;
1066 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1067 Opts.Verbose = Args.hasArg(OPT_v);
1068 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1069 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
1070 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1071 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
1072 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
1073 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1074 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path);
1075 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
1076 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
1077 // -fmodules implies -fmodule-maps
1078 Opts.ModuleMaps = Args.hasArg(OPT_fmodule_maps) || Args.hasArg(OPT_fmodules);
1079 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd);
1080 Opts.ModuleCachePruneInterval =
1081 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
1082 Opts.ModuleCachePruneAfter =
1083 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
1084 Opts.ModulesValidateOncePerBuildSession =
1085 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
1086 Opts.BuildSessionTimestamp =
1087 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
1088 Opts.ModulesValidateSystemHeaders =
1089 Args.hasArg(OPT_fmodules_validate_system_headers);
1091 for (arg_iterator it = Args.filtered_begin(OPT_fmodules_ignore_macro),
1092 ie = Args.filtered_end();
1094 StringRef MacroDef = (*it)->getValue();
1095 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first);
1098 // Add -I..., -F..., and -index-header-map options in order.
1099 bool IsIndexHeaderMap = false;
1100 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F,
1101 OPT_index_header_map),
1102 ie = Args.filtered_end(); it != ie; ++it) {
1103 if ((*it)->getOption().matches(OPT_index_header_map)) {
1104 // -index-header-map applies to the next -I or -F.
1105 IsIndexHeaderMap = true;
1109 frontend::IncludeDirGroup Group
1110 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled;
1112 Opts.AddPath((*it)->getValue(), Group,
1113 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), true);
1114 IsIndexHeaderMap = false;
1117 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
1118 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
1119 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix,
1120 OPT_iwithprefixbefore),
1121 ie = Args.filtered_end(); it != ie; ++it) {
1123 if (A->getOption().matches(OPT_iprefix))
1124 Prefix = A->getValue();
1125 else if (A->getOption().matches(OPT_iwithprefix))
1126 Opts.AddPath(Prefix.str() + A->getValue(),
1127 frontend::After, false, true);
1129 Opts.AddPath(Prefix.str() + A->getValue(),
1130 frontend::Angled, false, true);
1133 for (arg_iterator it = Args.filtered_begin(OPT_idirafter),
1134 ie = Args.filtered_end(); it != ie; ++it)
1135 Opts.AddPath((*it)->getValue(), frontend::After, false, true);
1136 for (arg_iterator it = Args.filtered_begin(OPT_iquote),
1137 ie = Args.filtered_end(); it != ie; ++it)
1138 Opts.AddPath((*it)->getValue(), frontend::Quoted, false, true);
1139 for (arg_iterator it = Args.filtered_begin(OPT_isystem,
1140 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it)
1141 Opts.AddPath((*it)->getValue(), frontend::System, false,
1142 !(*it)->getOption().matches(OPT_iwithsysroot));
1143 for (arg_iterator it = Args.filtered_begin(OPT_iframework),
1144 ie = Args.filtered_end(); it != ie; ++it)
1145 Opts.AddPath((*it)->getValue(), frontend::System, true, true);
1147 // Add the paths for the various language specific isystem flags.
1148 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem),
1149 ie = Args.filtered_end(); it != ie; ++it)
1150 Opts.AddPath((*it)->getValue(), frontend::CSystem, false, true);
1151 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem),
1152 ie = Args.filtered_end(); it != ie; ++it)
1153 Opts.AddPath((*it)->getValue(), frontend::CXXSystem, false, true);
1154 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem),
1155 ie = Args.filtered_end(); it != ie; ++it)
1156 Opts.AddPath((*it)->getValue(), frontend::ObjCSystem, false,true);
1157 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem),
1158 ie = Args.filtered_end(); it != ie; ++it)
1159 Opts.AddPath((*it)->getValue(), frontend::ObjCXXSystem, false, true);
1161 // Add the internal paths from a driver that detects standard include paths.
1162 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem,
1163 OPT_internal_externc_isystem),
1164 E = Args.filtered_end();
1166 frontend::IncludeDirGroup Group = frontend::System;
1167 if ((*I)->getOption().matches(OPT_internal_externc_isystem))
1168 Group = frontend::ExternCSystem;
1169 Opts.AddPath((*I)->getValue(), Group, false, true);
1172 // Add the path prefixes which are implicitly treated as being system headers.
1173 for (arg_iterator I = Args.filtered_begin(OPT_system_header_prefix,
1174 OPT_no_system_header_prefix),
1175 E = Args.filtered_end();
1177 Opts.AddSystemHeaderPrefix(
1178 (*I)->getValue(), (*I)->getOption().matches(OPT_system_header_prefix));
1180 for (arg_iterator I = Args.filtered_begin(OPT_ivfsoverlay),
1181 E = Args.filtered_end(); I != E; ++I)
1182 Opts.AddVFSOverlayFile((*I)->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.ModulesSearchAll = Opts.Modules &&
1525 !Args.hasArg(OPT_fno_modules_search_all) &&
1526 Args.hasArg(OPT_fmodules_search_all);
1527 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
1528 Opts.ModulesImplicitMaps = Args.hasFlag(OPT_fmodules_implicit_maps,
1529 OPT_fno_modules_implicit_maps, true);
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 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type);
1592 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns);
1593 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm);
1595 if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() &&
1596 Opts.CurrentModule != Opts.ImplementationOfModule) {
1597 Diags.Report(diag::err_conflicting_module_names)
1598 << Opts.CurrentModule << Opts.ImplementationOfModule;
1601 // For now, we only support local submodule visibility in C++ (because we
1602 // heavily depend on the ODR for merging redefinitions).
1603 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus)
1604 Diags.Report(diag::err_drv_argument_not_allowed_with)
1605 << "-fmodules-local-submodule-visibility" << "C";
1607 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
1608 switch (llvm::StringSwitch<unsigned>(A->getValue())
1609 .Case("target", LangOptions::ASMM_Target)
1610 .Case("no", LangOptions::ASMM_Off)
1611 .Case("yes", LangOptions::ASMM_On)
1614 Diags.Report(diag::err_drv_invalid_value)
1615 << "-faddress-space-map-mangling=" << A->getValue();
1617 case LangOptions::ASMM_Target:
1618 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
1620 case LangOptions::ASMM_On:
1621 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
1623 case LangOptions::ASMM_Off:
1624 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
1629 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
1630 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
1631 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
1634 LangOptions::PPTMK_FullGeneralitySingleInheritance)
1636 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
1638 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
1639 .Default(LangOptions::PPTMK_BestCase);
1640 if (InheritanceModel == LangOptions::PPTMK_BestCase)
1641 Diags.Report(diag::err_drv_invalid_value)
1642 << "-fms-memptr-rep=" << A->getValue();
1644 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
1647 // Check if -fopenmp is specified.
1648 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp);
1650 // Record whether the __DEPRECATED define was requested.
1651 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
1652 OPT_fno_deprecated_macro,
1655 // FIXME: Eliminate this dependency.
1656 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
1657 OptSize = getOptimizationLevelSize(Args);
1658 Opts.Optimize = Opt != 0;
1659 Opts.OptimizeSize = OptSize != 0;
1661 // This is the __NO_INLINE__ define, which just depends on things like the
1662 // optimization level and -fno-inline, not actually whether the backend has
1663 // inlining enabled.
1664 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline);
1666 Opts.FastMath = Args.hasArg(OPT_ffast_math) ||
1667 Args.hasArg(OPT_cl_fast_relaxed_math);
1668 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) ||
1669 Args.hasArg(OPT_cl_finite_math_only) ||
1670 Args.hasArg(OPT_cl_fast_relaxed_math);
1672 Opts.RetainCommentsFromSystemHeaders =
1673 Args.hasArg(OPT_fretain_comments_from_system_headers);
1675 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
1678 Diags.Report(diag::err_drv_invalid_value)
1679 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
1681 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
1682 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
1683 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
1684 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
1687 // Parse -fsanitize= arguments.
1688 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
1689 Diags, Opts.Sanitize);
1690 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here.
1691 Opts.SanitizeAddressFieldPadding =
1692 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags);
1693 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist);
1696 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
1697 FileManager &FileMgr,
1698 DiagnosticsEngine &Diags) {
1699 using namespace options;
1700 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
1701 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
1702 if (const Arg *A = Args.getLastArg(OPT_token_cache))
1703 Opts.TokenCache = A->getValue();
1705 Opts.TokenCache = Opts.ImplicitPTHInclude;
1706 Opts.UsePredefines = !Args.hasArg(OPT_undef);
1707 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
1708 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
1710 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
1711 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl),
1712 ie = Args.filtered_end(); it != ie; ++it) {
1714 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
1717 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
1718 StringRef Value(A->getValue());
1719 size_t Comma = Value.find(',');
1721 unsigned EndOfLine = 0;
1723 if (Comma == StringRef::npos ||
1724 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
1725 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
1726 Diags.Report(diag::err_drv_preamble_format);
1728 Opts.PrecompiledPreambleBytes.first = Bytes;
1729 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
1733 // Add macros from the command line.
1734 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U),
1735 ie = Args.filtered_end(); it != ie; ++it) {
1736 if ((*it)->getOption().matches(OPT_D))
1737 Opts.addMacroDef((*it)->getValue());
1739 Opts.addMacroUndef((*it)->getValue());
1742 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
1744 // Add the ordered list of -includes.
1745 for (arg_iterator it = Args.filtered_begin(OPT_include),
1746 ie = Args.filtered_end(); it != ie; ++it) {
1748 Opts.Includes.push_back(A->getValue());
1751 for (arg_iterator it = Args.filtered_begin(OPT_chain_include),
1752 ie = Args.filtered_end(); it != ie; ++it) {
1754 Opts.ChainedIncludes.push_back(A->getValue());
1757 // Include 'altivec.h' if -faltivec option present
1758 if (Args.hasArg(OPT_faltivec))
1759 Opts.Includes.push_back("altivec.h");
1761 for (arg_iterator it = Args.filtered_begin(OPT_remap_file),
1762 ie = Args.filtered_end(); it != ie; ++it) {
1764 std::pair<StringRef,StringRef> Split =
1765 StringRef(A->getValue()).split(';');
1767 if (Split.second.empty()) {
1768 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
1772 Opts.addRemappedFile(Split.first, Split.second);
1775 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
1776 StringRef Name = A->getValue();
1777 unsigned Library = llvm::StringSwitch<unsigned>(Name)
1778 .Case("libc++", ARCXX_libcxx)
1779 .Case("libstdc++", ARCXX_libstdcxx)
1780 .Case("none", ARCXX_nolib)
1783 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1785 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
1789 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
1791 frontend::ActionKind Action) {
1792 using namespace options;
1795 case frontend::ASTDeclList:
1796 case frontend::ASTDump:
1797 case frontend::ASTPrint:
1798 case frontend::ASTView:
1799 case frontend::EmitAssembly:
1800 case frontend::EmitBC:
1801 case frontend::EmitHTML:
1802 case frontend::EmitLLVM:
1803 case frontend::EmitLLVMOnly:
1804 case frontend::EmitCodeGenOnly:
1805 case frontend::EmitObj:
1806 case frontend::FixIt:
1807 case frontend::GenerateModule:
1808 case frontend::GeneratePCH:
1809 case frontend::GeneratePTH:
1810 case frontend::ParseSyntaxOnly:
1811 case frontend::ModuleFileInfo:
1812 case frontend::VerifyPCH:
1813 case frontend::PluginAction:
1814 case frontend::PrintDeclContext:
1815 case frontend::RewriteObjC:
1816 case frontend::RewriteTest:
1817 case frontend::RunAnalysis:
1818 case frontend::MigrateSource:
1822 case frontend::DumpRawTokens:
1823 case frontend::DumpTokens:
1824 case frontend::InitOnly:
1825 case frontend::PrintPreamble:
1826 case frontend::PrintPreprocessedInput:
1827 case frontend::RewriteMacros:
1828 case frontend::RunPreprocessorOnly:
1829 Opts.ShowCPP = !Args.hasArg(OPT_dM);
1833 Opts.ShowComments = Args.hasArg(OPT_C);
1834 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
1835 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
1836 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
1837 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
1838 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives);
1841 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
1842 using namespace options;
1843 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
1844 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
1845 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
1846 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
1847 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
1848 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
1850 // Use the default target triple if unspecified.
1851 if (Opts.Triple.empty())
1852 Opts.Triple = llvm::sys::getDefaultTargetTriple();
1855 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
1856 const char *const *ArgBegin,
1857 const char *const *ArgEnd,
1858 DiagnosticsEngine &Diags) {
1859 bool Success = true;
1861 // Parse the arguments.
1862 std::unique_ptr<OptTable> Opts(createDriverOptTable());
1863 const unsigned IncludedFlagsBitmask = options::CC1Option;
1864 unsigned MissingArgIndex, MissingArgCount;
1865 std::unique_ptr<InputArgList> Args(
1866 Opts->ParseArgs(ArgBegin, ArgEnd, MissingArgIndex, MissingArgCount,
1867 IncludedFlagsBitmask));
1869 // Check for missing argument error.
1870 if (MissingArgCount) {
1871 Diags.Report(diag::err_drv_missing_argument)
1872 << Args->getArgString(MissingArgIndex) << MissingArgCount;
1876 // Issue errors on unknown arguments.
1877 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN),
1878 ie = Args->filtered_end(); it != ie; ++it) {
1879 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args);
1883 Success = ParseAnalyzerArgs(*Res.getAnalyzerOpts(), *Args, Diags) && Success;
1884 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success;
1885 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args);
1886 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags)
1888 ParseCommentArgs(Res.getLangOpts()->CommentOpts, *Args);
1889 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args);
1890 // FIXME: We shouldn't have to pass the DashX option around here
1891 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags);
1892 ParseTargetArgs(Res.getTargetOpts(), *Args);
1893 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags,
1894 Res.getTargetOpts()) && Success;
1895 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args);
1896 if (DashX != IK_AST && DashX != IK_LLVM_IR) {
1897 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags);
1898 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
1899 Res.getLangOpts()->ObjCExceptions = 1;
1901 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of
1902 // PCH file and find the original header name. Remove the need to do that in
1903 // ParsePreprocessorArgs and remove the FileManager
1904 // parameters from the function and the "FileManager.h" #include.
1905 FileManager FileMgr(Res.getFileSystemOpts());
1906 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags);
1907 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args,
1908 Res.getFrontendOpts().ProgramAction);
1914 class ModuleSignature {
1915 SmallVector<uint64_t, 16> Data;
1920 ModuleSignature() : CurBit(0), CurValue(0) { }
1922 void add(uint64_t Value, unsigned Bits);
1923 void add(StringRef Value);
1926 llvm::APInt getAsInteger() const;
1930 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) {
1931 CurValue |= Value << CurBit;
1932 if (CurBit + NumBits < 64) {
1937 // Add the current word.
1938 Data.push_back(CurValue);
1941 CurValue = Value >> (64-CurBit);
1944 CurBit = (CurBit+NumBits) & 63;
1947 void ModuleSignature::flush() {
1951 Data.push_back(CurValue);
1956 void ModuleSignature::add(StringRef Value) {
1957 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I)
1961 llvm::APInt ModuleSignature::getAsInteger() const {
1962 return llvm::APInt(Data.size() * 64, Data);
1965 std::string CompilerInvocation::getModuleHash() const {
1966 // Note: For QoI reasons, the things we use as a hash here should all be
1967 // dumped via the -module-info flag.
1968 using llvm::hash_code;
1969 using llvm::hash_value;
1970 using llvm::hash_combine;
1972 // Start the signature with the compiler version.
1973 // FIXME: We'd rather use something more cryptographically sound than
1974 // CityHash, but this will do for now.
1975 hash_code code = hash_value(getClangFullRepositoryVersion());
1977 // Extend the signature with the language options
1978 #define LANGOPT(Name, Bits, Default, Description) \
1979 code = hash_combine(code, LangOpts->Name);
1980 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
1981 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
1982 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
1983 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
1984 #include "clang/Basic/LangOptions.def"
1986 // Extend the signature with the target options.
1987 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
1989 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i)
1990 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]);
1992 // Extend the signature with preprocessor options.
1993 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
1994 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
1995 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
1997 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator
1998 I = getPreprocessorOpts().Macros.begin(),
1999 IEnd = getPreprocessorOpts().Macros.end();
2001 // If we're supposed to ignore this macro for the purposes of modules,
2002 // don't put it into the hash.
2003 if (!hsOpts.ModulesIgnoreMacros.empty()) {
2004 // Check whether we're ignoring this macro.
2005 StringRef MacroDef = I->first;
2006 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first))
2010 code = hash_combine(code, I->first, I->second);
2013 // Extend the signature with the sysroot.
2014 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes,
2015 hsOpts.UseStandardSystemIncludes,
2016 hsOpts.UseStandardCXXIncludes,
2018 code = hash_combine(code, hsOpts.ResourceDir);
2020 // Extend the signature with the user build path.
2021 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
2023 // Darwin-specific hack: if we have a sysroot, use the contents and
2024 // modification time of
2025 // $sysroot/System/Library/CoreServices/SystemVersion.plist
2026 // as part of the module hash.
2027 if (!hsOpts.Sysroot.empty()) {
2028 SmallString<128> systemVersionFile;
2029 systemVersionFile += hsOpts.Sysroot;
2030 llvm::sys::path::append(systemVersionFile, "System");
2031 llvm::sys::path::append(systemVersionFile, "Library");
2032 llvm::sys::path::append(systemVersionFile, "CoreServices");
2033 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist");
2035 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer =
2036 llvm::MemoryBuffer::getFile(systemVersionFile);
2038 code = hash_combine(code, buffer.get()->getBuffer());
2040 struct stat statBuf;
2041 if (stat(systemVersionFile.c_str(), &statBuf) == 0)
2042 code = hash_combine(code, statBuf.st_mtime);
2046 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
2051 template<typename IntTy>
2052 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
2054 DiagnosticsEngine *Diags) {
2055 IntTy Res = Default;
2056 if (Arg *A = Args.getLastArg(Id)) {
2057 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
2059 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)
2067 // Declared in clang/Frontend/Utils.h.
2068 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
2069 DiagnosticsEngine *Diags) {
2070 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags);
2073 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
2075 DiagnosticsEngine *Diags) {
2076 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags);
2079 void BuryPointer(const void *Ptr) {
2080 // This function may be called only a small fixed amount of times per each
2081 // invocation, otherwise we do actually have a leak which we want to report.
2082 // If this function is called more than kGraveYardMaxSize times, the pointers
2083 // will not be properly buried and a leak detector will report a leak, which
2084 // is what we want in such case.
2085 static const size_t kGraveYardMaxSize = 16;
2086 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize];
2087 static std::atomic<unsigned> GraveYardSize;
2088 unsigned Idx = GraveYardSize++;
2089 if (Idx >= kGraveYardMaxSize)
2091 GraveYard[Idx] = Ptr;
2094 IntrusiveRefCntPtr<vfs::FileSystem>
2095 createVFSFromCompilerInvocation(const CompilerInvocation &CI,
2096 DiagnosticsEngine &Diags) {
2097 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
2098 return vfs::getRealFileSystem();
2100 IntrusiveRefCntPtr<vfs::OverlayFileSystem>
2101 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem()));
2102 // earlier vfs files are on the bottom
2103 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
2104 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
2105 llvm::MemoryBuffer::getFile(File);
2107 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
2108 return IntrusiveRefCntPtr<vfs::FileSystem>();
2111 IntrusiveRefCntPtr<vfs::FileSystem> FS =
2112 vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/ nullptr);
2114 Diags.Report(diag::err_invalid_vfs_overlay) << File;
2115 return IntrusiveRefCntPtr<vfs::FileSystem>();
2117 Overlay->pushOverlay(FS);
2121 } // end namespace clang