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 "TestModuleFileExtension.h"
11 #include "clang/Frontend/CompilerInvocation.h"
12 #include "clang/Basic/FileManager.h"
13 #include "clang/Basic/Version.h"
14 #include "clang/Config/config.h"
15 #include "clang/Driver/DriverDiagnostic.h"
16 #include "clang/Driver/Options.h"
17 #include "clang/Driver/Util.h"
18 #include "clang/Frontend/FrontendDiagnostic.h"
19 #include "clang/Frontend/LangStandard.h"
20 #include "clang/Frontend/Utils.h"
21 #include "clang/Lex/HeaderSearchOptions.h"
22 #include "clang/Serialization/ASTReader.h"
23 #include "clang/Serialization/ModuleFileExtension.h"
24 #include "llvm/ADT/Hashing.h"
25 #include "llvm/ADT/STLExtras.h"
26 #include "llvm/ADT/SmallVector.h"
27 #include "llvm/ADT/StringExtras.h"
28 #include "llvm/ADT/StringSwitch.h"
29 #include "llvm/ADT/Triple.h"
30 #include "llvm/Linker/Linker.h"
31 #include "llvm/Option/Arg.h"
32 #include "llvm/Option/ArgList.h"
33 #include "llvm/Option/OptTable.h"
34 #include "llvm/Option/Option.h"
35 #include "llvm/Support/CodeGen.h"
36 #include "llvm/Support/ErrorHandling.h"
37 #include "llvm/Support/FileSystem.h"
38 #include "llvm/Support/Host.h"
39 #include "llvm/Support/Path.h"
40 #include "llvm/Support/Process.h"
41 #include "llvm/Target/TargetOptions.h"
45 #include <system_error>
46 using namespace clang;
48 //===----------------------------------------------------------------------===//
50 //===----------------------------------------------------------------------===//
52 CompilerInvocationBase::CompilerInvocationBase()
53 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
54 DiagnosticOpts(new DiagnosticOptions()),
55 HeaderSearchOpts(new HeaderSearchOptions()),
56 PreprocessorOpts(new PreprocessorOptions()) {}
58 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X)
59 : RefCountedBase<CompilerInvocation>(),
60 LangOpts(new LangOptions(*X.getLangOpts())),
61 TargetOpts(new TargetOptions(X.getTargetOpts())),
62 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
63 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
64 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {}
66 CompilerInvocationBase::~CompilerInvocationBase() {}
68 //===----------------------------------------------------------------------===//
69 // Deserialization (from args)
70 //===----------------------------------------------------------------------===//
72 using namespace clang::driver;
73 using namespace clang::driver::options;
74 using namespace llvm::opt;
78 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
79 DiagnosticsEngine &Diags) {
80 unsigned DefaultOpt = 0;
81 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable))
84 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
85 if (A->getOption().matches(options::OPT_O0))
88 if (A->getOption().matches(options::OPT_Ofast))
91 assert (A->getOption().matches(options::OPT_O));
93 StringRef S(A->getValue());
94 if (S == "s" || S == "z" || S.empty())
97 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags);
103 static unsigned getOptimizationLevelSize(ArgList &Args) {
104 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
105 if (A->getOption().matches(options::OPT_O)) {
106 switch (A->getValue()[0]) {
119 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
120 OptSpecifier GroupWithValue,
121 std::vector<std::string> &Diagnostics) {
122 for (Arg *A : Args.filtered(Group)) {
123 if (A->getOption().getKind() == Option::FlagClass) {
124 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
125 // its name (minus the "W" or "R" at the beginning) to the warning list.
126 Diagnostics.push_back(A->getOption().getName().drop_front(1));
127 } else if (A->getOption().matches(GroupWithValue)) {
128 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group.
129 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-"));
131 // Otherwise, add its value (for OPT_W_Joined and similar).
132 for (const char *Arg : A->getValues())
133 Diagnostics.emplace_back(Arg);
138 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
139 DiagnosticsEngine &Diags) {
140 using namespace options;
142 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
143 StringRef Name = A->getValue();
144 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
145 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
146 .Case(CMDFLAG, NAME##Model)
147 #include "clang/StaticAnalyzer/Core/Analyses.def"
149 if (Value == NumStores) {
150 Diags.Report(diag::err_drv_invalid_value)
151 << A->getAsString(Args) << Name;
154 Opts.AnalysisStoreOpt = Value;
158 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
159 StringRef Name = A->getValue();
160 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
161 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
162 .Case(CMDFLAG, NAME##Model)
163 #include "clang/StaticAnalyzer/Core/Analyses.def"
164 .Default(NumConstraints);
165 if (Value == NumConstraints) {
166 Diags.Report(diag::err_drv_invalid_value)
167 << A->getAsString(Args) << Name;
170 Opts.AnalysisConstraintsOpt = Value;
174 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
175 StringRef Name = A->getValue();
176 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
177 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
178 .Case(CMDFLAG, PD_##NAME)
179 #include "clang/StaticAnalyzer/Core/Analyses.def"
180 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
181 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
182 Diags.Report(diag::err_drv_invalid_value)
183 << A->getAsString(Args) << Name;
186 Opts.AnalysisDiagOpt = Value;
190 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
191 StringRef Name = A->getValue();
192 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
193 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
195 #include "clang/StaticAnalyzer/Core/Analyses.def"
196 .Default(NumPurgeModes);
197 if (Value == NumPurgeModes) {
198 Diags.Report(diag::err_drv_invalid_value)
199 << A->getAsString(Args) << Name;
202 Opts.AnalysisPurgeOpt = Value;
206 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
207 StringRef Name = A->getValue();
208 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
209 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
211 #include "clang/StaticAnalyzer/Core/Analyses.def"
212 .Default(NumInliningModes);
213 if (Value == NumInliningModes) {
214 Diags.Report(diag::err_drv_invalid_value)
215 << A->getAsString(Args) << Name;
218 Opts.InliningMode = Value;
222 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
223 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks);
225 Opts.visualizeExplodedGraphWithGraphViz =
226 Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
227 Opts.visualizeExplodedGraphWithUbiGraph =
228 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
229 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
230 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
231 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
232 Opts.AnalyzeNestedBlocks =
233 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
234 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume);
235 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
236 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
237 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
238 Opts.maxBlockVisitOnPath =
239 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags);
240 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
241 Opts.InlineMaxStackDepth =
242 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth,
243 Opts.InlineMaxStackDepth, Diags);
245 Opts.CheckersControlList.clear();
247 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) {
249 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
250 // We can have a list of comma separated checker names, e.g:
251 // '-analyzer-checker=cocoa,unix'
252 StringRef checkerList = A->getValue();
253 SmallVector<StringRef, 4> checkers;
254 checkerList.split(checkers, ",");
255 for (StringRef checker : checkers)
256 Opts.CheckersControlList.emplace_back(checker, enable);
259 // Go through the analyzer configuration options.
260 for (const Arg *A : Args.filtered(OPT_analyzer_config)) {
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 bool parseDiagnosticLevelMask(StringRef FlagName,
329 const std::vector<std::string> &Levels,
330 DiagnosticsEngine *Diags,
331 DiagnosticLevelMask &M) {
333 for (const auto &Level : Levels) {
334 DiagnosticLevelMask const PM =
335 llvm::StringSwitch<DiagnosticLevelMask>(Level)
336 .Case("note", DiagnosticLevelMask::Note)
337 .Case("remark", DiagnosticLevelMask::Remark)
338 .Case("warning", DiagnosticLevelMask::Warning)
339 .Case("error", DiagnosticLevelMask::Error)
340 .Default(DiagnosticLevelMask::None);
341 if (PM == DiagnosticLevelMask::None) {
344 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level;
351 static void parseSanitizerKinds(StringRef FlagName,
352 const std::vector<std::string> &Sanitizers,
353 DiagnosticsEngine &Diags, SanitizerSet &S) {
354 for (const auto &Sanitizer : Sanitizers) {
355 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false);
357 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer;
363 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
364 DiagnosticsEngine &Diags,
365 const TargetOptions &TargetOpts) {
366 using namespace options;
369 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
370 // TODO: This could be done in Driver
371 unsigned MaxOptLevel = 3;
372 if (OptimizationLevel > MaxOptLevel) {
373 // If the optimization level is not supported, fall back on the default
375 Diags.Report(diag::warn_drv_optimization_value)
376 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
377 OptimizationLevel = MaxOptLevel;
379 Opts.OptimizationLevel = OptimizationLevel;
381 // We must always run at least the always inlining pass.
383 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
384 : CodeGenOptions::OnlyAlwaysInlining);
385 // -fno-inline-functions overrides OptimizationLevel > 1.
386 Opts.NoInline = Args.hasArg(OPT_fno_inline);
387 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ?
388 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining());
390 if (Arg *A = Args.getLastArg(OPT_fveclib)) {
391 StringRef Name = A->getValue();
392 if (Name == "Accelerate")
393 Opts.setVecLib(CodeGenOptions::Accelerate);
394 else if (Name == "none")
395 Opts.setVecLib(CodeGenOptions::NoLibrary);
397 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
400 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) {
402 llvm::StringSwitch<CodeGenOptions::DebugInfoKind>(A->getValue())
403 .Case("line-tables-only", CodeGenOptions::DebugLineTablesOnly)
404 .Case("limited", CodeGenOptions::LimitedDebugInfo)
405 .Case("standalone", CodeGenOptions::FullDebugInfo));
407 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags);
408 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
409 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview);
410 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
411 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs);
413 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ))
414 Opts.DebugPrefixMap.insert(StringRef(Arg).split('='));
417 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists))
418 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
420 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
421 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes);
422 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
423 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
424 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
425 OPT_fuse_register_sized_bitfield_access);
426 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
427 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
428 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
429 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
430 Opts.NoCommon = Args.hasArg(OPT_fno_common);
431 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
432 Opts.OptimizeSize = getOptimizationLevelSize(Args);
433 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
434 Args.hasArg(OPT_ffreestanding));
436 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
437 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize));
438 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
440 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
441 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
442 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
443 Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate) ||
444 Args.hasArg(OPT_fprofile_instr_generate_EQ);
445 Opts.InstrProfileOutput = Args.getLastArgValue(OPT_fprofile_instr_generate_EQ);
446 Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ);
447 Opts.CoverageMapping =
448 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false);
449 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
450 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
451 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
452 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
453 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
454 Opts.CodeModel = getCodeModel(Args, Diags);
455 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
457 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg));
458 Opts.DisableFree = Args.hasArg(OPT_disable_free);
459 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
460 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
461 if (Arg *A = Args.getLastArg(OPT_meabi)) {
462 StringRef Value = A->getValue();
463 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value)
464 .Case("default", llvm::EABI::Default)
465 .Case("4", llvm::EABI::EABI4)
466 .Case("5", llvm::EABI::EABI5)
467 .Case("gnu", llvm::EABI::GNU)
468 .Default(llvm::EABI::Unknown);
469 if (EABIVersion == llvm::EABI::Unknown)
470 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
473 Opts.EABIVersion = Value;
475 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable);
476 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
477 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
478 Args.hasArg(OPT_cl_finite_math_only) ||
479 Args.hasArg(OPT_cl_fast_relaxed_math));
480 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
481 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
482 Args.hasArg(OPT_cl_finite_math_only) ||
483 Args.hasArg(OPT_cl_fast_relaxed_math));
484 Opts.NoSignedZeros = Args.hasArg(OPT_fno_signed_zeros);
485 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
486 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
487 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
488 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
489 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
490 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
491 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
492 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
493 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
494 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
495 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
496 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
497 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
498 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers);
499 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
500 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
501 Args.hasArg(OPT_cl_fast_relaxed_math);
502 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
503 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
504 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
505 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
506 Diags.Report(diag::err_drv_invalid_value)
507 << Args.getLastArg(OPT_mthread_model)->getAsString(Args)
509 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
510 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
512 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
513 OPT_fno_function_sections, false);
514 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
515 OPT_fno_data_sections, false);
516 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
517 OPT_fno_unique_section_names, true);
519 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
521 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ);
522 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ);
523 Opts.EmitFunctionSummary = A && A->containsValue("thin");
525 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile);
527 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive);
528 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
529 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
531 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
532 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
534 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
535 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
536 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
537 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
538 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file);
539 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
540 Opts.CoverageNoFunctionNamesInData =
541 Args.hasArg(OPT_coverage_no_function_names_in_data);
542 Opts.CoverageExitBlockBeforeBody =
543 Args.hasArg(OPT_coverage_exit_block_before_body);
544 if (Args.hasArg(OPT_coverage_version_EQ)) {
545 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
546 if (CoverageVersion.size() != 4) {
547 Diags.Report(diag::err_drv_invalid_value)
548 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
551 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
556 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
557 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
558 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
559 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections);
560 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
561 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) {
562 unsigned LinkFlags = llvm::Linker::Flags::None;
563 if (A->getOption().matches(OPT_mlink_cuda_bitcode))
564 LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded |
565 llvm::Linker::Flags::InternalizeLinkedSymbols;
566 Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue()));
568 Opts.SanitizeCoverageType =
569 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags);
570 Opts.SanitizeCoverageIndirectCalls =
571 Args.hasArg(OPT_fsanitize_coverage_indirect_calls);
572 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb);
573 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp);
574 Opts.SanitizeCoverage8bitCounters =
575 Args.hasArg(OPT_fsanitize_coverage_8bit_counters);
576 Opts.SanitizeMemoryTrackOrigins =
577 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
578 Opts.SanitizeMemoryUseAfterDtor =
579 Args.hasArg(OPT_fsanitize_memory_use_after_dtor);
581 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
582 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
583 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
584 StringRef Val = A->getValue();
585 unsigned StackAlignment = Opts.StackAlignment;
586 Val.getAsInteger(10, StackAlignment);
587 Opts.StackAlignment = StackAlignment;
590 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) {
591 StringRef Val = A->getValue();
592 unsigned StackProbeSize = Opts.StackProbeSize;
593 Val.getAsInteger(0, StackProbeSize);
594 Opts.StackProbeSize = StackProbeSize;
597 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
598 StringRef Name = A->getValue();
599 unsigned Method = llvm::StringSwitch<unsigned>(Name)
600 .Case("legacy", CodeGenOptions::Legacy)
601 .Case("non-legacy", CodeGenOptions::NonLegacy)
602 .Case("mixed", CodeGenOptions::Mixed)
605 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
608 Opts.setObjCDispatchMethod(
609 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
614 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false);
616 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
617 StringRef Name = A->getValue();
618 unsigned Model = llvm::StringSwitch<unsigned>(Name)
619 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
620 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
621 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
622 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
625 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
628 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
632 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
633 StringRef Val = A->getValue();
635 Opts.setFPContractMode(CodeGenOptions::FPC_Fast);
636 else if (Val == "on")
637 Opts.setFPContractMode(CodeGenOptions::FPC_On);
638 else if (Val == "off")
639 Opts.setFPContractMode(CodeGenOptions::FPC_Off);
641 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
644 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
645 if (A->getOption().matches(OPT_fpcc_struct_return)) {
646 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
648 assert(A->getOption().matches(OPT_freg_struct_return));
649 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
653 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
654 bool NeedLocTracking = false;
656 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
657 Opts.OptimizationRemarkPattern =
658 GenerateOptimizationRemarkRegex(Diags, Args, A);
659 NeedLocTracking = true;
662 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
663 Opts.OptimizationRemarkMissedPattern =
664 GenerateOptimizationRemarkRegex(Diags, Args, A);
665 NeedLocTracking = true;
668 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
669 Opts.OptimizationRemarkAnalysisPattern =
670 GenerateOptimizationRemarkRegex(Diags, Args, A);
671 NeedLocTracking = true;
674 // If the user requested to use a sample profile for PGO, then the
675 // backend will need to track source location information so the profile
676 // can be incorporated into the IR.
677 if (!Opts.SampleProfileFile.empty())
678 NeedLocTracking = true;
680 // If the user requested a flag that requires source locations available in
681 // the backend, make sure that the backend tracks source location information.
682 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo)
683 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly);
685 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file);
687 // Parse -fsanitize-recover= arguments.
688 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
689 parseSanitizerKinds("-fsanitize-recover=",
690 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
691 Opts.SanitizeRecover);
692 parseSanitizerKinds("-fsanitize-trap=",
693 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags,
696 Opts.CudaGpuBinaryFileNames =
697 Args.getAllArgValues(OPT_fcuda_include_gpubinary);
702 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
704 using namespace options;
705 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
706 Opts.Targets = Args.getAllArgValues(OPT_MT);
707 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
708 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
709 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
710 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
711 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
712 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
713 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes);
714 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
715 Opts.ModuleDependencyOutputDir =
716 Args.getLastArgValue(OPT_module_dependency_dir);
717 if (Args.hasArg(OPT_MV))
718 Opts.OutputFormat = DependencyOutputFormat::NMake;
719 // Add sanitizer blacklists as extra dependencies.
720 // They won't be discovered by the regular preprocessor, so
721 // we let make / ninja to know about this implicit dependency.
722 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry);
723 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
724 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(),
728 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
729 DiagnosticsEngine *Diags) {
730 using namespace options;
733 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
735 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
736 Opts.DiagnosticSerializationFile = A->getValue();
737 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
738 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
739 Opts.Pedantic = Args.hasArg(OPT_pedantic);
740 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
741 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
742 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics);
743 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
746 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
747 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
748 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
750 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
752 // Default behavior is to not to show note include stacks.
753 Opts.ShowNoteIncludeStack = false;
754 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
755 OPT_fno_diagnostics_show_note_include_stack))
756 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
757 Opts.ShowNoteIncludeStack = true;
759 StringRef ShowOverloads =
760 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
761 if (ShowOverloads == "best")
762 Opts.setShowOverloads(Ovl_Best);
763 else if (ShowOverloads == "all")
764 Opts.setShowOverloads(Ovl_All);
768 Diags->Report(diag::err_drv_invalid_value)
769 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
773 StringRef ShowCategory =
774 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
775 if (ShowCategory == "none")
776 Opts.ShowCategories = 0;
777 else if (ShowCategory == "id")
778 Opts.ShowCategories = 1;
779 else if (ShowCategory == "name")
780 Opts.ShowCategories = 2;
784 Diags->Report(diag::err_drv_invalid_value)
785 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
790 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
791 if (Format == "clang")
792 Opts.setFormat(DiagnosticOptions::Clang);
793 else if (Format == "msvc")
794 Opts.setFormat(DiagnosticOptions::MSVC);
795 else if (Format == "msvc-fallback") {
796 Opts.setFormat(DiagnosticOptions::MSVC);
797 Opts.CLFallbackMode = true;
798 } else if (Format == "vi")
799 Opts.setFormat(DiagnosticOptions::Vi);
803 Diags->Report(diag::err_drv_invalid_value)
804 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
808 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
809 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
810 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
811 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
812 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
813 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=",
814 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ),
816 if (Args.hasArg(OPT_verify_ignore_unexpected))
817 DiagMask = DiagnosticLevelMask::All;
818 Opts.setVerifyIgnoreUnexpected(DiagMask);
819 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
820 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
821 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
822 Opts.MacroBacktraceLimit =
823 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
824 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
825 Opts.TemplateBacktraceLimit = getLastArgIntValue(
826 Args, OPT_ftemplate_backtrace_limit,
827 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
828 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
829 Args, OPT_fconstexpr_backtrace_limit,
830 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
831 Opts.SpellCheckingLimit = getLastArgIntValue(
832 Args, OPT_fspell_checking_limit,
833 DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
834 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
835 DiagnosticOptions::DefaultTabStop, Diags);
836 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
837 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
839 Diags->Report(diag::warn_ignoring_ftabstop_value)
840 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
842 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
843 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
844 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
849 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
850 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
853 /// Parse the argument to the -ftest-module-file-extension
854 /// command-line argument.
856 /// \returns true on error, false on success.
857 static bool parseTestModuleFileExtensionArg(StringRef Arg,
858 std::string &BlockName,
859 unsigned &MajorVersion,
860 unsigned &MinorVersion,
862 std::string &UserInfo) {
863 SmallVector<StringRef, 5> Args;
864 Arg.split(Args, ':', 5);
869 if (Args[1].getAsInteger(10, MajorVersion)) return true;
870 if (Args[2].getAsInteger(10, MinorVersion)) return true;
871 if (Args[3].getAsInteger(2, Hashed)) return true;
877 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
878 DiagnosticsEngine &Diags) {
879 using namespace options;
880 Opts.ProgramAction = frontend::ParseSyntaxOnly;
881 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
882 switch (A->getOption().getID()) {
884 llvm_unreachable("Invalid option in group!");
886 Opts.ProgramAction = frontend::ASTDeclList; break;
888 case OPT_ast_dump_lookups:
889 Opts.ProgramAction = frontend::ASTDump; break;
891 Opts.ProgramAction = frontend::ASTPrint; break;
893 Opts.ProgramAction = frontend::ASTView; break;
894 case OPT_dump_raw_tokens:
895 Opts.ProgramAction = frontend::DumpRawTokens; break;
896 case OPT_dump_tokens:
897 Opts.ProgramAction = frontend::DumpTokens; break;
899 Opts.ProgramAction = frontend::EmitAssembly; break;
900 case OPT_emit_llvm_bc:
901 Opts.ProgramAction = frontend::EmitBC; break;
903 Opts.ProgramAction = frontend::EmitHTML; break;
905 Opts.ProgramAction = frontend::EmitLLVM; break;
906 case OPT_emit_llvm_only:
907 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
908 case OPT_emit_codegen_only:
909 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
911 Opts.ProgramAction = frontend::EmitObj; break;
913 Opts.FixItSuffix = A->getValue();
916 Opts.ProgramAction = frontend::FixIt; break;
917 case OPT_emit_module:
918 Opts.ProgramAction = frontend::GenerateModule; break;
920 Opts.ProgramAction = frontend::GeneratePCH; break;
922 Opts.ProgramAction = frontend::GeneratePTH; break;
924 Opts.ProgramAction = frontend::InitOnly; break;
925 case OPT_fsyntax_only:
926 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
927 case OPT_module_file_info:
928 Opts.ProgramAction = frontend::ModuleFileInfo; break;
930 Opts.ProgramAction = frontend::VerifyPCH; break;
931 case OPT_print_decl_contexts:
932 Opts.ProgramAction = frontend::PrintDeclContext; break;
933 case OPT_print_preamble:
934 Opts.ProgramAction = frontend::PrintPreamble; break;
936 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
937 case OPT_rewrite_macros:
938 Opts.ProgramAction = frontend::RewriteMacros; break;
939 case OPT_rewrite_objc:
940 Opts.ProgramAction = frontend::RewriteObjC; break;
941 case OPT_rewrite_test:
942 Opts.ProgramAction = frontend::RewriteTest; break;
944 Opts.ProgramAction = frontend::RunAnalysis; break;
946 Opts.ProgramAction = frontend::MigrateSource; break;
948 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
952 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
953 Opts.Plugins.emplace_back(A->getValue(0));
954 Opts.ProgramAction = frontend::PluginAction;
955 Opts.ActionName = A->getValue();
957 for (const Arg *AA : Args.filtered(OPT_plugin_arg))
958 if (AA->getValue(0) == Opts.ActionName)
959 Opts.PluginArgs.emplace_back(AA->getValue(1));
962 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
963 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size());
964 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i)
965 for (const Arg *A : Args.filtered(OPT_plugin_arg))
966 if (A->getValue(0) == Opts.AddPluginActions[i])
967 Opts.AddPluginArgs[i].emplace_back(A->getValue(1));
969 for (const std::string &Arg :
970 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) {
971 std::string BlockName;
972 unsigned MajorVersion;
973 unsigned MinorVersion;
975 std::string UserInfo;
976 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
977 MinorVersion, Hashed, UserInfo)) {
978 Diags.Report(diag::err_test_module_file_extension_format) << Arg;
983 // Add the testing module file extension.
984 Opts.ModuleFileExtensions.push_back(
985 new TestModuleFileExtension(BlockName, MajorVersion, MinorVersion,
989 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
990 Opts.CodeCompletionAt =
991 ParsedSourceLocation::FromString(A->getValue());
992 if (Opts.CodeCompletionAt.FileName.empty())
993 Diags.Report(diag::err_drv_invalid_value)
994 << A->getAsString(Args) << A->getValue();
996 Opts.DisableFree = Args.hasArg(OPT_disable_free);
998 Opts.OutputFile = Args.getLastArgValue(OPT_o);
999 Opts.Plugins = Args.getAllArgValues(OPT_load);
1000 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1001 Opts.ShowHelp = Args.hasArg(OPT_help);
1002 Opts.ShowStats = Args.hasArg(OPT_print_stats);
1003 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1004 Opts.ShowVersion = Args.hasArg(OPT_version);
1005 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1006 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1007 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
1008 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
1009 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
1010 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
1011 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump);
1012 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
1013 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
1014 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
1015 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
1016 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file);
1017 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
1018 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ);
1020 Opts.CodeCompleteOpts.IncludeMacros
1021 = Args.hasArg(OPT_code_completion_macros);
1022 Opts.CodeCompleteOpts.IncludeCodePatterns
1023 = Args.hasArg(OPT_code_completion_patterns);
1024 Opts.CodeCompleteOpts.IncludeGlobals
1025 = !Args.hasArg(OPT_no_code_completion_globals);
1026 Opts.CodeCompleteOpts.IncludeBriefComments
1027 = Args.hasArg(OPT_code_completion_brief_comments);
1029 Opts.OverrideRecordLayoutsFile
1030 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
1032 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple));
1034 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
1036 OPT_arcmt_migrate)) {
1037 switch (A->getOption().getID()) {
1039 llvm_unreachable("missed a case");
1040 case OPT_arcmt_check:
1041 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
1043 case OPT_arcmt_modify:
1044 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
1046 case OPT_arcmt_migrate:
1047 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
1051 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
1052 Opts.ARCMTMigrateReportOut
1053 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
1054 Opts.ARCMTMigrateEmitARCErrors
1055 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
1057 if (Args.hasArg(OPT_objcmt_migrate_literals))
1058 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
1059 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
1060 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
1061 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
1062 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
1063 if (Args.hasArg(OPT_objcmt_migrate_property))
1064 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
1065 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
1066 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
1067 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
1068 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
1069 if (Args.hasArg(OPT_objcmt_migrate_annotation))
1070 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
1071 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
1072 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
1073 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
1074 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
1075 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
1076 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
1077 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
1078 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
1079 if (Args.hasArg(OPT_objcmt_atomic_property))
1080 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
1081 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
1082 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
1083 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
1084 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
1085 if (Args.hasArg(OPT_objcmt_migrate_all))
1086 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
1088 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
1090 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
1091 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
1092 Diags.Report(diag::err_drv_argument_not_allowed_with)
1093 << "ARC migration" << "ObjC migration";
1096 InputKind DashX = IK_None;
1097 if (const Arg *A = Args.getLastArg(OPT_x)) {
1098 DashX = llvm::StringSwitch<InputKind>(A->getValue())
1100 .Case("cl", IK_OpenCL)
1101 .Case("cuda", IK_CUDA)
1102 .Case("c++", IK_CXX)
1103 .Case("objective-c", IK_ObjC)
1104 .Case("objective-c++", IK_ObjCXX)
1105 .Case("cpp-output", IK_PreprocessedC)
1106 .Case("assembler-with-cpp", IK_Asm)
1107 .Case("c++-cpp-output", IK_PreprocessedCXX)
1108 .Case("cuda-cpp-output", IK_PreprocessedCuda)
1109 .Case("objective-c-cpp-output", IK_PreprocessedObjC)
1110 .Case("objc-cpp-output", IK_PreprocessedObjC)
1111 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
1112 .Case("objc++-cpp-output", IK_PreprocessedObjCXX)
1113 .Case("c-header", IK_C)
1114 .Case("cl-header", IK_OpenCL)
1115 .Case("objective-c-header", IK_ObjC)
1116 .Case("c++-header", IK_CXX)
1117 .Case("objective-c++-header", IK_ObjCXX)
1118 .Cases("ast", "pcm", IK_AST)
1119 .Case("ir", IK_LLVM_IR)
1121 if (DashX == IK_None)
1122 Diags.Report(diag::err_drv_invalid_value)
1123 << A->getAsString(Args) << A->getValue();
1126 // '-' is the default input if none is given.
1127 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1128 Opts.Inputs.clear();
1130 Inputs.push_back("-");
1131 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1132 InputKind IK = DashX;
1133 if (IK == IK_None) {
1134 IK = FrontendOptions::getInputKindForExtension(
1135 StringRef(Inputs[i]).rsplit('.').second);
1136 // FIXME: Remove this hack.
1140 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK);
1146 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1148 std::string ClangExecutable =
1149 llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
1150 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable);
1152 // Compute the path to the resource directory.
1153 StringRef ClangResourceDir(CLANG_RESOURCE_DIR);
1154 SmallString<128> P(Dir);
1155 if (ClangResourceDir != "")
1156 llvm::sys::path::append(P, ClangResourceDir);
1158 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX,
1159 "clang", CLANG_VERSION_STRING);
1164 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
1165 using namespace options;
1166 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1167 Opts.Verbose = Args.hasArg(OPT_v);
1168 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1169 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
1170 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1171 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
1172 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
1173 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1174 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path);
1175 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
1176 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
1177 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps);
1178 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd);
1179 Opts.ModuleCachePruneInterval =
1180 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
1181 Opts.ModuleCachePruneAfter =
1182 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
1183 Opts.ModulesValidateOncePerBuildSession =
1184 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
1185 Opts.BuildSessionTimestamp =
1186 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
1187 Opts.ModulesValidateSystemHeaders =
1188 Args.hasArg(OPT_fmodules_validate_system_headers);
1189 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ))
1190 Opts.ModuleFormat = A->getValue();
1192 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) {
1193 StringRef MacroDef = A->getValue();
1194 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first);
1197 // Add -I..., -F..., and -index-header-map options in order.
1198 bool IsIndexHeaderMap = false;
1199 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) {
1200 if (A->getOption().matches(OPT_index_header_map)) {
1201 // -index-header-map applies to the next -I or -F.
1202 IsIndexHeaderMap = true;
1206 frontend::IncludeDirGroup Group =
1207 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled;
1209 Opts.AddPath(A->getValue(), Group,
1210 /*IsFramework=*/A->getOption().matches(OPT_F), true);
1211 IsIndexHeaderMap = false;
1214 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
1215 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
1217 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) {
1218 if (A->getOption().matches(OPT_iprefix))
1219 Prefix = A->getValue();
1220 else if (A->getOption().matches(OPT_iwithprefix))
1221 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true);
1223 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true);
1226 for (const Arg *A : Args.filtered(OPT_idirafter))
1227 Opts.AddPath(A->getValue(), frontend::After, false, true);
1228 for (const Arg *A : Args.filtered(OPT_iquote))
1229 Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
1230 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
1231 Opts.AddPath(A->getValue(), frontend::System, false,
1232 !A->getOption().matches(OPT_iwithsysroot));
1233 for (const Arg *A : Args.filtered(OPT_iframework))
1234 Opts.AddPath(A->getValue(), frontend::System, true, true);
1236 // Add the paths for the various language specific isystem flags.
1237 for (const Arg *A : Args.filtered(OPT_c_isystem))
1238 Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
1239 for (const Arg *A : Args.filtered(OPT_cxx_isystem))
1240 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
1241 for (const Arg *A : Args.filtered(OPT_objc_isystem))
1242 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
1243 for (const Arg *A : Args.filtered(OPT_objcxx_isystem))
1244 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
1246 // Add the internal paths from a driver that detects standard include paths.
1248 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) {
1249 frontend::IncludeDirGroup Group = frontend::System;
1250 if (A->getOption().matches(OPT_internal_externc_isystem))
1251 Group = frontend::ExternCSystem;
1252 Opts.AddPath(A->getValue(), Group, false, true);
1255 // Add the path prefixes which are implicitly treated as being system headers.
1257 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix))
1258 Opts.AddSystemHeaderPrefix(
1259 A->getValue(), A->getOption().matches(OPT_system_header_prefix));
1261 for (const Arg *A : Args.filtered(OPT_ivfsoverlay))
1262 Opts.AddVFSOverlayFile(A->getValue());
1265 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
1266 LangStandard::Kind LangStd) {
1267 // Set some properties which depend solely on the input kind; it would be nice
1268 // to move these to the language standard, and have the driver resolve the
1269 // input kind + language standard.
1271 Opts.AsmPreprocessor = 1;
1272 } else if (IK == IK_ObjC ||
1274 IK == IK_PreprocessedObjC ||
1275 IK == IK_PreprocessedObjCXX) {
1276 Opts.ObjC1 = Opts.ObjC2 = 1;
1279 if (LangStd == LangStandard::lang_unspecified) {
1280 // Based on the base language, pick one.
1285 llvm_unreachable("Invalid input kind!");
1287 LangStd = LangStandard::lang_opencl;
1290 case IK_PreprocessedCuda:
1291 LangStd = LangStandard::lang_cuda;
1295 case IK_PreprocessedC:
1297 case IK_PreprocessedObjC:
1298 LangStd = LangStandard::lang_gnu11;
1301 case IK_PreprocessedCXX:
1303 case IK_PreprocessedObjCXX:
1304 LangStd = LangStandard::lang_gnucxx98;
1309 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1310 Opts.LineComment = Std.hasLineComments();
1311 Opts.C99 = Std.isC99();
1312 Opts.C11 = Std.isC11();
1313 Opts.CPlusPlus = Std.isCPlusPlus();
1314 Opts.CPlusPlus11 = Std.isCPlusPlus11();
1315 Opts.CPlusPlus14 = Std.isCPlusPlus14();
1316 Opts.CPlusPlus1z = Std.isCPlusPlus1z();
1317 Opts.Digraphs = Std.hasDigraphs();
1318 Opts.GNUMode = Std.isGNUMode();
1319 Opts.GNUInline = Std.isC89();
1320 Opts.HexFloats = Std.hasHexFloats();
1321 Opts.ImplicitInt = Std.hasImplicitInt();
1323 // Set OpenCL Version.
1324 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL;
1325 if (LangStd == LangStandard::lang_opencl)
1326 Opts.OpenCLVersion = 100;
1327 else if (LangStd == LangStandard::lang_opencl11)
1328 Opts.OpenCLVersion = 110;
1329 else if (LangStd == LangStandard::lang_opencl12)
1330 Opts.OpenCLVersion = 120;
1331 else if (LangStd == LangStandard::lang_opencl20)
1332 Opts.OpenCLVersion = 200;
1334 // OpenCL has some additional defaults.
1338 Opts.CXXOperatorNames = 1;
1339 Opts.LaxVectorConversions = 0;
1340 Opts.DefaultFPContract = 1;
1341 Opts.NativeHalfType = 1;
1344 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda ||
1345 LangStd == LangStandard::lang_cuda;
1347 // OpenCL and C++ both have bool, true, false keywords.
1348 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1350 // OpenCL has half keyword
1351 Opts.Half = Opts.OpenCL;
1353 // C++ has wchar_t keyword.
1354 Opts.WChar = Opts.CPlusPlus;
1356 Opts.GNUKeywords = Opts.GNUMode;
1357 Opts.CXXOperatorNames = Opts.CPlusPlus;
1359 Opts.DollarIdents = !Opts.AsmPreprocessor;
1362 /// Attempt to parse a visibility value out of the given argument.
1363 static Visibility parseVisibility(Arg *arg, ArgList &args,
1364 DiagnosticsEngine &diags) {
1365 StringRef value = arg->getValue();
1366 if (value == "default") {
1367 return DefaultVisibility;
1368 } else if (value == "hidden" || value == "internal") {
1369 return HiddenVisibility;
1370 } else if (value == "protected") {
1371 // FIXME: diagnose if target does not support protected visibility
1372 return ProtectedVisibility;
1375 diags.Report(diag::err_drv_invalid_value)
1376 << arg->getAsString(args) << value;
1377 return DefaultVisibility;
1380 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
1381 DiagnosticsEngine &Diags) {
1382 // FIXME: Cleanup per-file based stuff.
1383 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1384 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
1385 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1386 #define LANGSTANDARD(id, name, desc, features) \
1387 .Case(name, LangStandard::lang_##id)
1388 #include "clang/Frontend/LangStandards.def"
1389 .Default(LangStandard::lang_unspecified);
1390 if (LangStd == LangStandard::lang_unspecified)
1391 Diags.Report(diag::err_drv_invalid_value)
1392 << A->getAsString(Args) << A->getValue();
1394 // Valid standard, check to make sure language and standard are
1396 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1400 case IK_PreprocessedC:
1401 case IK_PreprocessedObjC:
1402 if (!(Std.isC89() || Std.isC99()))
1403 Diags.Report(diag::err_drv_argument_not_allowed_with)
1404 << A->getAsString(Args) << "C/ObjC";
1408 case IK_PreprocessedCXX:
1409 case IK_PreprocessedObjCXX:
1410 if (!Std.isCPlusPlus())
1411 Diags.Report(diag::err_drv_argument_not_allowed_with)
1412 << A->getAsString(Args) << "C++/ObjC++";
1416 Diags.Report(diag::err_drv_argument_not_allowed_with)
1417 << A->getAsString(Args) << "OpenCL";
1420 case IK_PreprocessedCuda:
1421 if (!Std.isCPlusPlus())
1422 Diags.Report(diag::err_drv_argument_not_allowed_with)
1423 << A->getAsString(Args) << "CUDA";
1431 // -cl-std only applies for OpenCL language standards.
1432 // Override the -std option in this case.
1433 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
1434 LangStandard::Kind OpenCLLangStd
1435 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1436 .Case("CL", LangStandard::lang_opencl)
1437 .Case("CL1.1", LangStandard::lang_opencl11)
1438 .Case("CL1.2", LangStandard::lang_opencl12)
1439 .Case("CL2.0", LangStandard::lang_opencl20)
1440 .Default(LangStandard::lang_unspecified);
1442 if (OpenCLLangStd == LangStandard::lang_unspecified) {
1443 Diags.Report(diag::err_drv_invalid_value)
1444 << A->getAsString(Args) << A->getValue();
1447 LangStd = OpenCLLangStd;
1450 CompilerInvocation::setLangDefaults(Opts, IK, LangStd);
1452 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1453 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1454 // while a subset (the non-C++ GNU keywords) is provided by GCC's
1455 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1456 // name, as it doesn't seem a useful distinction.
1457 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
1460 if (Args.hasArg(OPT_fno_operator_names))
1461 Opts.CXXOperatorNames = 0;
1463 if (Args.hasArg(OPT_fcuda_is_device))
1464 Opts.CUDAIsDevice = 1;
1466 if (Args.hasArg(OPT_fcuda_allow_host_calls_from_host_device))
1467 Opts.CUDAAllowHostCallsFromHostDevice = 1;
1469 if (Args.hasArg(OPT_fcuda_disable_target_call_checks))
1470 Opts.CUDADisableTargetCallChecks = 1;
1472 if (Args.hasArg(OPT_fcuda_target_overloads))
1473 Opts.CUDATargetOverloads = 1;
1476 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
1477 StringRef value = arg->getValue();
1478 if (Opts.ObjCRuntime.tryParse(value))
1479 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
1482 if (Args.hasArg(OPT_fobjc_gc_only))
1483 Opts.setGC(LangOptions::GCOnly);
1484 else if (Args.hasArg(OPT_fobjc_gc))
1485 Opts.setGC(LangOptions::HybridGC);
1486 else if (Args.hasArg(OPT_fobjc_arc)) {
1487 Opts.ObjCAutoRefCount = 1;
1488 if (!Opts.ObjCRuntime.allowsARC())
1489 Diags.Report(diag::err_arc_unsupported_on_runtime);
1492 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
1493 // whether the feature is actually enabled. This is predominantly
1494 // determined by -fobjc-runtime, but we allow it to be overridden
1495 // from the command line for testing purposes.
1496 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
1497 Opts.ObjCWeakRuntime = 1;
1499 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
1501 // ObjCWeak determines whether __weak is actually enabled.
1502 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
1503 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) {
1504 if (!weakArg->getOption().matches(OPT_fobjc_weak)) {
1505 assert(!Opts.ObjCWeak);
1506 } else if (Opts.getGC() != LangOptions::NonGC) {
1507 Diags.Report(diag::err_objc_weak_with_gc);
1508 } else if (!Opts.ObjCWeakRuntime) {
1509 Diags.Report(diag::err_objc_weak_unsupported);
1513 } else if (Opts.ObjCAutoRefCount) {
1514 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
1517 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
1518 Opts.ObjCInferRelatedResultType = 0;
1520 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
1521 Opts.ObjCSubscriptingLegacyRuntime =
1522 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
1525 if (Args.hasArg(OPT_fgnu89_inline)) {
1527 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline"
1533 if (Args.hasArg(OPT_fapple_kext)) {
1534 if (!Opts.CPlusPlus)
1535 Diags.Report(diag::warn_c_kext);
1540 if (Args.hasArg(OPT_print_ivar_layout))
1541 Opts.ObjCGCBitmapPrint = 1;
1542 if (Args.hasArg(OPT_fno_constant_cfstrings))
1543 Opts.NoConstantCFStrings = 1;
1545 if (Args.hasArg(OPT_faltivec))
1548 if (Args.hasArg(OPT_fzvector))
1551 if (Args.hasArg(OPT_pthread))
1552 Opts.POSIXThreads = 1;
1554 // The value-visibility mode defaults to "default".
1555 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
1556 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
1558 Opts.setValueVisibilityMode(DefaultVisibility);
1561 // The type-visibility mode defaults to the value-visibility mode.
1562 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
1563 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
1565 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
1568 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
1569 Opts.InlineVisibilityHidden = 1;
1571 if (Args.hasArg(OPT_ftrapv)) {
1572 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
1573 // Set the handler, if one is specified.
1574 Opts.OverflowHandler =
1575 Args.getLastArgValue(OPT_ftrapv_handler);
1577 else if (Args.hasArg(OPT_fwrapv))
1578 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
1580 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
1581 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
1582 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
1583 Opts.MSCompatibilityVersion = 0;
1584 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) {
1586 if (VT.tryParse(A->getValue()))
1587 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
1589 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
1590 VT.getMinor().getValueOr(0) * 100000 +
1591 VT.getSubminor().getValueOr(0);
1594 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1595 // is specified, or -std is set to a conforming mode.
1596 // Trigraphs are disabled by default in c++1z onwards.
1597 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z;
1599 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs);
1601 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
1602 OPT_fno_dollars_in_identifiers,
1604 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
1605 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags);
1606 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
1607 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
1608 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
1610 if (Args.hasArg(OPT_fno_lax_vector_conversions))
1611 Opts.LaxVectorConversions = 0;
1612 if (Args.hasArg(OPT_fno_threadsafe_statics))
1613 Opts.ThreadsafeStatics = 0;
1614 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
1615 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
1616 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
1617 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
1618 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
1620 Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
1621 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
1622 Opts.Blocks = Args.hasArg(OPT_fblocks);
1623 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
1624 Opts.Coroutines = Args.hasArg(OPT_fcoroutines);
1625 Opts.Modules = Args.hasArg(OPT_fmodules);
1626 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse);
1627 Opts.ModulesDeclUse =
1628 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
1629 Opts.ModulesLocalVisibility =
1630 Args.hasArg(OPT_fmodules_local_submodule_visibility);
1631 Opts.ModulesSearchAll = Opts.Modules &&
1632 !Args.hasArg(OPT_fno_modules_search_all) &&
1633 Args.hasArg(OPT_fmodules_search_all);
1634 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
1635 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules);
1636 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
1637 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
1638 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false);
1639 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
1640 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
1641 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
1642 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
1643 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
1644 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation);
1645 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts);
1646 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
1647 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
1648 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
1649 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
1650 Opts.InstantiationDepth =
1651 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags);
1653 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
1654 Opts.ConstexprCallDepth =
1655 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
1656 Opts.ConstexprStepLimit =
1657 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
1658 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
1659 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
1660 Opts.NumLargeByValueCopy =
1661 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
1662 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
1663 Opts.ObjCConstantStringClass =
1664 Args.getLastArgValue(OPT_fconstant_string_class);
1665 Opts.ObjCDefaultSynthProperties =
1666 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
1667 Opts.EncodeExtendedBlockSig =
1668 Args.hasArg(OPT_fencode_extended_block_signature);
1669 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
1670 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
1671 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags);
1672 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
1673 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags);
1674 Opts.Static = Args.hasArg(OPT_static_define);
1675 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
1676 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
1677 || Args.hasArg(OPT_fdump_record_layouts);
1678 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
1679 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
1680 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
1681 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
1682 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
1683 Opts.MRTD = Args.hasArg(OPT_mrtd);
1684 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
1685 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
1686 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
1687 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
1688 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
1689 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
1690 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
1691 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name);
1692 Opts.AppExt = Args.hasArg(OPT_fapplication_extension);
1693 Opts.ImplementationOfModule =
1694 Args.getLastArgValue(OPT_fmodule_implementation_of);
1695 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature);
1696 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end());
1697 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type);
1698 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns);
1699 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm);
1701 // __declspec is enabled by default for the PS4 by the driver, and also
1702 // enabled for Microsoft Extensions or Borland Extensions, here.
1704 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a
1705 // CUDA extension, however it is required for supporting cuda_builtin_vars.h,
1706 // which uses __declspec(property). Once that has been rewritten in terms of
1707 // something more generic, remove the Opts.CUDA term here.
1708 Opts.DeclSpecKeyword =
1709 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec,
1710 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA));
1712 if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() &&
1713 Opts.CurrentModule != Opts.ImplementationOfModule) {
1714 Diags.Report(diag::err_conflicting_module_names)
1715 << Opts.CurrentModule << Opts.ImplementationOfModule;
1718 // For now, we only support local submodule visibility in C++ (because we
1719 // heavily depend on the ODR for merging redefinitions).
1720 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus)
1721 Diags.Report(diag::err_drv_argument_not_allowed_with)
1722 << "-fmodules-local-submodule-visibility" << "C";
1724 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
1725 switch (llvm::StringSwitch<unsigned>(A->getValue())
1726 .Case("target", LangOptions::ASMM_Target)
1727 .Case("no", LangOptions::ASMM_Off)
1728 .Case("yes", LangOptions::ASMM_On)
1731 Diags.Report(diag::err_drv_invalid_value)
1732 << "-faddress-space-map-mangling=" << A->getValue();
1734 case LangOptions::ASMM_Target:
1735 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
1737 case LangOptions::ASMM_On:
1738 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
1740 case LangOptions::ASMM_Off:
1741 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
1746 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
1747 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
1748 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
1751 LangOptions::PPTMK_FullGeneralitySingleInheritance)
1753 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
1755 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
1756 .Default(LangOptions::PPTMK_BestCase);
1757 if (InheritanceModel == LangOptions::PPTMK_BestCase)
1758 Diags.Report(diag::err_drv_invalid_value)
1759 << "-fms-memptr-rep=" << A->getValue();
1761 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
1764 // Check if -fopenmp is specified.
1765 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp);
1767 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls);
1769 // Record whether the __DEPRECATED define was requested.
1770 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
1771 OPT_fno_deprecated_macro,
1774 // FIXME: Eliminate this dependency.
1775 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
1776 OptSize = getOptimizationLevelSize(Args);
1777 Opts.Optimize = Opt != 0;
1778 Opts.OptimizeSize = OptSize != 0;
1780 // This is the __NO_INLINE__ define, which just depends on things like the
1781 // optimization level and -fno-inline, not actually whether the backend has
1782 // inlining enabled.
1783 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline);
1785 Opts.FastMath = Args.hasArg(OPT_ffast_math) ||
1786 Args.hasArg(OPT_cl_fast_relaxed_math);
1787 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) ||
1788 Args.hasArg(OPT_cl_finite_math_only) ||
1789 Args.hasArg(OPT_cl_fast_relaxed_math);
1790 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
1791 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
1792 Args.hasArg(OPT_cl_fast_relaxed_math);
1794 Opts.RetainCommentsFromSystemHeaders =
1795 Args.hasArg(OPT_fretain_comments_from_system_headers);
1797 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
1800 Diags.Report(diag::err_drv_invalid_value)
1801 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
1803 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
1804 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
1805 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
1806 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
1809 // Parse -fsanitize= arguments.
1810 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
1811 Diags, Opts.Sanitize);
1812 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here.
1813 Opts.SanitizeAddressFieldPadding =
1814 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags);
1815 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist);
1818 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
1819 FileManager &FileMgr,
1820 DiagnosticsEngine &Diags) {
1821 using namespace options;
1822 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
1823 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
1824 if (const Arg *A = Args.getLastArg(OPT_token_cache))
1825 Opts.TokenCache = A->getValue();
1827 Opts.TokenCache = Opts.ImplicitPTHInclude;
1828 Opts.UsePredefines = !Args.hasArg(OPT_undef);
1829 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
1830 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
1832 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
1833 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl))
1834 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
1836 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
1837 StringRef Value(A->getValue());
1838 size_t Comma = Value.find(',');
1840 unsigned EndOfLine = 0;
1842 if (Comma == StringRef::npos ||
1843 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
1844 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
1845 Diags.Report(diag::err_drv_preamble_format);
1847 Opts.PrecompiledPreambleBytes.first = Bytes;
1848 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
1852 // Add macros from the command line.
1853 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) {
1854 if (A->getOption().matches(OPT_D))
1855 Opts.addMacroDef(A->getValue());
1857 Opts.addMacroUndef(A->getValue());
1860 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
1862 // Add the ordered list of -includes.
1863 for (const Arg *A : Args.filtered(OPT_include))
1864 Opts.Includes.emplace_back(A->getValue());
1866 for (const Arg *A : Args.filtered(OPT_chain_include))
1867 Opts.ChainedIncludes.emplace_back(A->getValue());
1869 // Include 'altivec.h' if -faltivec option present
1870 if (Args.hasArg(OPT_faltivec))
1871 Opts.Includes.emplace_back("altivec.h");
1873 for (const Arg *A : Args.filtered(OPT_remap_file)) {
1874 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
1876 if (Split.second.empty()) {
1877 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
1881 Opts.addRemappedFile(Split.first, Split.second);
1884 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
1885 StringRef Name = A->getValue();
1886 unsigned Library = llvm::StringSwitch<unsigned>(Name)
1887 .Case("libc++", ARCXX_libcxx)
1888 .Case("libstdc++", ARCXX_libstdcxx)
1889 .Case("none", ARCXX_nolib)
1892 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1894 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
1898 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
1900 frontend::ActionKind Action) {
1901 using namespace options;
1904 case frontend::ASTDeclList:
1905 case frontend::ASTDump:
1906 case frontend::ASTPrint:
1907 case frontend::ASTView:
1908 case frontend::EmitAssembly:
1909 case frontend::EmitBC:
1910 case frontend::EmitHTML:
1911 case frontend::EmitLLVM:
1912 case frontend::EmitLLVMOnly:
1913 case frontend::EmitCodeGenOnly:
1914 case frontend::EmitObj:
1915 case frontend::FixIt:
1916 case frontend::GenerateModule:
1917 case frontend::GeneratePCH:
1918 case frontend::GeneratePTH:
1919 case frontend::ParseSyntaxOnly:
1920 case frontend::ModuleFileInfo:
1921 case frontend::VerifyPCH:
1922 case frontend::PluginAction:
1923 case frontend::PrintDeclContext:
1924 case frontend::RewriteObjC:
1925 case frontend::RewriteTest:
1926 case frontend::RunAnalysis:
1927 case frontend::MigrateSource:
1931 case frontend::DumpRawTokens:
1932 case frontend::DumpTokens:
1933 case frontend::InitOnly:
1934 case frontend::PrintPreamble:
1935 case frontend::PrintPreprocessedInput:
1936 case frontend::RewriteMacros:
1937 case frontend::RunPreprocessorOnly:
1938 Opts.ShowCPP = !Args.hasArg(OPT_dM);
1942 Opts.ShowComments = Args.hasArg(OPT_C);
1943 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
1944 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
1945 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
1946 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
1947 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives);
1950 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
1951 using namespace options;
1952 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
1953 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
1954 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
1955 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
1956 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
1957 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
1958 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ);
1959 // Use the default target triple if unspecified.
1960 if (Opts.Triple.empty())
1961 Opts.Triple = llvm::sys::getDefaultTargetTriple();
1964 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
1965 const char *const *ArgBegin,
1966 const char *const *ArgEnd,
1967 DiagnosticsEngine &Diags) {
1968 bool Success = true;
1970 // Parse the arguments.
1971 std::unique_ptr<OptTable> Opts(createDriverOptTable());
1972 const unsigned IncludedFlagsBitmask = options::CC1Option;
1973 unsigned MissingArgIndex, MissingArgCount;
1975 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex,
1976 MissingArgCount, IncludedFlagsBitmask);
1978 // Check for missing argument error.
1979 if (MissingArgCount) {
1980 Diags.Report(diag::err_drv_missing_argument)
1981 << Args.getArgString(MissingArgIndex) << MissingArgCount;
1985 // Issue errors on unknown arguments.
1986 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) {
1987 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args);
1991 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
1992 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args);
1993 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args);
1994 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags);
1995 ParseCommentArgs(Res.getLangOpts()->CommentOpts, Args);
1996 ParseFileSystemArgs(Res.getFileSystemOpts(), Args);
1997 // FIXME: We shouldn't have to pass the DashX option around here
1998 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags);
1999 ParseTargetArgs(Res.getTargetOpts(), Args);
2000 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
2001 Res.getTargetOpts());
2002 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args);
2003 if (DashX == IK_AST || DashX == IK_LLVM_IR) {
2004 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
2005 // PassManager in BackendUtil.cpp. They need to be initializd no matter
2006 // what the input type is.
2007 if (Args.hasArg(OPT_fobjc_arc))
2008 Res.getLangOpts()->ObjCAutoRefCount = 1;
2009 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
2010 Diags, Res.getLangOpts()->Sanitize);
2012 // Other LangOpts are only initialzed when the input is not AST or LLVM IR.
2013 ParseLangArgs(*Res.getLangOpts(), Args, DashX, Diags);
2014 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
2015 Res.getLangOpts()->ObjCExceptions = 1;
2017 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of
2018 // PCH file and find the original header name. Remove the need to do that in
2019 // ParsePreprocessorArgs and remove the FileManager
2020 // parameters from the function and the "FileManager.h" #include.
2021 FileManager FileMgr(Res.getFileSystemOpts());
2022 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags);
2023 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args,
2024 Res.getFrontendOpts().ProgramAction);
2030 class ModuleSignature {
2031 SmallVector<uint64_t, 16> Data;
2036 ModuleSignature() : CurBit(0), CurValue(0) { }
2038 void add(uint64_t Value, unsigned Bits);
2039 void add(StringRef Value);
2042 llvm::APInt getAsInteger() const;
2046 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) {
2047 CurValue |= Value << CurBit;
2048 if (CurBit + NumBits < 64) {
2053 // Add the current word.
2054 Data.push_back(CurValue);
2057 CurValue = Value >> (64-CurBit);
2060 CurBit = (CurBit+NumBits) & 63;
2063 void ModuleSignature::flush() {
2067 Data.push_back(CurValue);
2072 void ModuleSignature::add(StringRef Value) {
2073 for (auto &c : Value)
2077 llvm::APInt ModuleSignature::getAsInteger() const {
2078 return llvm::APInt(Data.size() * 64, Data);
2081 std::string CompilerInvocation::getModuleHash() const {
2082 // Note: For QoI reasons, the things we use as a hash here should all be
2083 // dumped via the -module-info flag.
2084 using llvm::hash_code;
2085 using llvm::hash_value;
2086 using llvm::hash_combine;
2088 // Start the signature with the compiler version.
2089 // FIXME: We'd rather use something more cryptographically sound than
2090 // CityHash, but this will do for now.
2091 hash_code code = hash_value(getClangFullRepositoryVersion());
2093 // Extend the signature with the language options
2094 #define LANGOPT(Name, Bits, Default, Description) \
2095 code = hash_combine(code, LangOpts->Name);
2096 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
2097 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
2098 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
2099 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
2100 #include "clang/Basic/LangOptions.def"
2102 for (StringRef Feature : LangOpts->ModuleFeatures)
2103 code = hash_combine(code, Feature);
2105 // Extend the signature with the target options.
2106 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
2108 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i)
2109 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]);
2111 // Extend the signature with preprocessor options.
2112 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
2113 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
2114 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
2116 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator
2117 I = getPreprocessorOpts().Macros.begin(),
2118 IEnd = getPreprocessorOpts().Macros.end();
2120 // If we're supposed to ignore this macro for the purposes of modules,
2121 // don't put it into the hash.
2122 if (!hsOpts.ModulesIgnoreMacros.empty()) {
2123 // Check whether we're ignoring this macro.
2124 StringRef MacroDef = I->first;
2125 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first))
2129 code = hash_combine(code, I->first, I->second);
2132 // Extend the signature with the sysroot.
2133 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes,
2134 hsOpts.UseStandardSystemIncludes,
2135 hsOpts.UseStandardCXXIncludes,
2137 code = hash_combine(code, hsOpts.ResourceDir);
2139 // Extend the signature with the user build path.
2140 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
2142 // Extend the signature with the module file extensions.
2143 const FrontendOptions &frontendOpts = getFrontendOpts();
2144 for (auto ext : frontendOpts.ModuleFileExtensions) {
2145 code = ext->hashExtension(code);
2148 // Darwin-specific hack: if we have a sysroot, use the contents and
2149 // modification time of
2150 // $sysroot/System/Library/CoreServices/SystemVersion.plist
2151 // as part of the module hash.
2152 if (!hsOpts.Sysroot.empty()) {
2153 SmallString<128> systemVersionFile;
2154 systemVersionFile += hsOpts.Sysroot;
2155 llvm::sys::path::append(systemVersionFile, "System");
2156 llvm::sys::path::append(systemVersionFile, "Library");
2157 llvm::sys::path::append(systemVersionFile, "CoreServices");
2158 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist");
2160 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer =
2161 llvm::MemoryBuffer::getFile(systemVersionFile);
2163 code = hash_combine(code, buffer.get()->getBuffer());
2165 struct stat statBuf;
2166 if (stat(systemVersionFile.c_str(), &statBuf) == 0)
2167 code = hash_combine(code, statBuf.st_mtime);
2171 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
2176 template<typename IntTy>
2177 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
2179 DiagnosticsEngine *Diags) {
2180 IntTy Res = Default;
2181 if (Arg *A = Args.getLastArg(Id)) {
2182 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
2184 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)
2192 // Declared in clang/Frontend/Utils.h.
2193 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
2194 DiagnosticsEngine *Diags) {
2195 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags);
2198 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
2200 DiagnosticsEngine *Diags) {
2201 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags);
2204 void BuryPointer(const void *Ptr) {
2205 // This function may be called only a small fixed amount of times per each
2206 // invocation, otherwise we do actually have a leak which we want to report.
2207 // If this function is called more than kGraveYardMaxSize times, the pointers
2208 // will not be properly buried and a leak detector will report a leak, which
2209 // is what we want in such case.
2210 static const size_t kGraveYardMaxSize = 16;
2211 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize];
2212 static std::atomic<unsigned> GraveYardSize;
2213 unsigned Idx = GraveYardSize++;
2214 if (Idx >= kGraveYardMaxSize)
2216 GraveYard[Idx] = Ptr;
2219 IntrusiveRefCntPtr<vfs::FileSystem>
2220 createVFSFromCompilerInvocation(const CompilerInvocation &CI,
2221 DiagnosticsEngine &Diags) {
2222 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
2223 return vfs::getRealFileSystem();
2225 IntrusiveRefCntPtr<vfs::OverlayFileSystem>
2226 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem()));
2227 // earlier vfs files are on the bottom
2228 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
2229 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
2230 llvm::MemoryBuffer::getFile(File);
2232 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
2233 return IntrusiveRefCntPtr<vfs::FileSystem>();
2236 IntrusiveRefCntPtr<vfs::FileSystem> FS =
2237 vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/ nullptr);
2239 Diags.Report(diag::err_invalid_vfs_overlay) << File;
2240 return IntrusiveRefCntPtr<vfs::FileSystem>();
2242 Overlay->pushOverlay(FS);
2246 } // end namespace clang