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;
368 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple);
370 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
371 // TODO: This could be done in Driver
372 unsigned MaxOptLevel = 3;
373 if (OptimizationLevel > MaxOptLevel) {
374 // If the optimization level is not supported, fall back on the default
376 Diags.Report(diag::warn_drv_optimization_value)
377 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
378 OptimizationLevel = MaxOptLevel;
380 Opts.OptimizationLevel = OptimizationLevel;
382 // We must always run at least the always inlining pass.
384 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
385 : CodeGenOptions::OnlyAlwaysInlining);
386 // -fno-inline-functions overrides OptimizationLevel > 1.
387 Opts.NoInline = Args.hasArg(OPT_fno_inline);
388 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ?
389 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining());
391 if (Arg *A = Args.getLastArg(OPT_fveclib)) {
392 StringRef Name = A->getValue();
393 if (Name == "Accelerate")
394 Opts.setVecLib(CodeGenOptions::Accelerate);
395 else if (Name == "none")
396 Opts.setVecLib(CodeGenOptions::NoLibrary);
398 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
401 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) {
403 llvm::StringSwitch<CodeGenOptions::DebugInfoKind>(A->getValue())
404 .Case("line-tables-only", CodeGenOptions::DebugLineTablesOnly)
405 .Case("limited", CodeGenOptions::LimitedDebugInfo)
406 .Case("standalone", CodeGenOptions::FullDebugInfo));
408 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) {
409 Opts.setDebuggerTuning(
410 llvm::StringSwitch<CodeGenOptions::DebuggerKind>(A->getValue())
411 .Case("gdb", CodeGenOptions::DebuggerKindGDB)
412 .Case("lldb", CodeGenOptions::DebuggerKindLLDB)
413 .Case("sce", CodeGenOptions::DebuggerKindSCE));
415 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags);
416 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
417 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview);
418 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
419 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs);
420 Opts.DebugExplicitImport = Triple.isPS4CPU();
422 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ))
423 Opts.DebugPrefixMap.insert(StringRef(Arg).split('='));
426 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists))
427 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
429 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
430 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes);
431 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
432 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
433 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
434 OPT_fuse_register_sized_bitfield_access);
435 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
436 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
437 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
438 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
439 Opts.NoCommon = Args.hasArg(OPT_fno_common);
440 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
441 Opts.OptimizeSize = getOptimizationLevelSize(Args);
442 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
443 Args.hasArg(OPT_ffreestanding));
445 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
446 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize));
447 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
449 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
450 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
451 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
452 Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate) ||
453 Args.hasArg(OPT_fprofile_instr_generate_EQ);
454 Opts.InstrProfileOutput = Args.getLastArgValue(OPT_fprofile_instr_generate_EQ);
455 Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ);
456 Opts.CoverageMapping =
457 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false);
458 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
459 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
460 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
461 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
462 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
463 Opts.CodeModel = getCodeModel(Args, Diags);
464 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
466 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg));
467 Opts.DisableFree = Args.hasArg(OPT_disable_free);
468 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
469 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
470 if (Arg *A = Args.getLastArg(OPT_meabi)) {
471 StringRef Value = A->getValue();
472 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value)
473 .Case("default", llvm::EABI::Default)
474 .Case("4", llvm::EABI::EABI4)
475 .Case("5", llvm::EABI::EABI5)
476 .Case("gnu", llvm::EABI::GNU)
477 .Default(llvm::EABI::Unknown);
478 if (EABIVersion == llvm::EABI::Unknown)
479 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
482 Opts.EABIVersion = Value;
484 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable);
485 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
486 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
487 Args.hasArg(OPT_cl_finite_math_only) ||
488 Args.hasArg(OPT_cl_fast_relaxed_math));
489 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
490 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
491 Args.hasArg(OPT_cl_finite_math_only) ||
492 Args.hasArg(OPT_cl_fast_relaxed_math));
493 Opts.NoSignedZeros = Args.hasArg(OPT_fno_signed_zeros);
494 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
495 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
496 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
497 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
498 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
499 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
500 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
501 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
502 Opts.IncrementalLinkerCompatible =
503 Args.hasArg(OPT_mincremental_linker_compatible);
504 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
505 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
506 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
507 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
508 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
509 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers);
510 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
511 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
512 Args.hasArg(OPT_cl_fast_relaxed_math);
513 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
514 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
515 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
516 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
517 Diags.Report(diag::err_drv_invalid_value)
518 << Args.getLastArg(OPT_mthread_model)->getAsString(Args)
520 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
521 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
523 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
524 OPT_fno_function_sections, false);
525 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
526 OPT_fno_data_sections, false);
527 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
528 OPT_fno_unique_section_names, true);
530 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
532 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ);
533 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ);
534 Opts.EmitFunctionSummary = A && A->containsValue("thin");
535 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) {
536 if (IK != IK_LLVM_IR)
537 Diags.Report(diag::err_drv_argument_only_allowed_with)
538 << A->getAsString(Args) << "-x ir";
539 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ);
542 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile);
544 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive);
545 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
546 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
548 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
549 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
551 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
552 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
553 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
554 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
555 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file);
556 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
557 Opts.CoverageNoFunctionNamesInData =
558 Args.hasArg(OPT_coverage_no_function_names_in_data);
559 Opts.CoverageExitBlockBeforeBody =
560 Args.hasArg(OPT_coverage_exit_block_before_body);
561 if (Args.hasArg(OPT_coverage_version_EQ)) {
562 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
563 if (CoverageVersion.size() != 4) {
564 Diags.Report(diag::err_drv_invalid_value)
565 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
568 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
573 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
574 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
575 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
576 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections);
577 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
578 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) {
579 unsigned LinkFlags = llvm::Linker::Flags::None;
580 if (A->getOption().matches(OPT_mlink_cuda_bitcode))
581 LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded |
582 llvm::Linker::Flags::InternalizeLinkedSymbols;
583 Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue()));
585 Opts.SanitizeCoverageType =
586 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags);
587 Opts.SanitizeCoverageIndirectCalls =
588 Args.hasArg(OPT_fsanitize_coverage_indirect_calls);
589 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb);
590 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp);
591 Opts.SanitizeCoverage8bitCounters =
592 Args.hasArg(OPT_fsanitize_coverage_8bit_counters);
593 Opts.SanitizeMemoryTrackOrigins =
594 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
595 Opts.SanitizeMemoryUseAfterDtor =
596 Args.hasArg(OPT_fsanitize_memory_use_after_dtor);
597 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso);
599 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
600 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
601 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
602 StringRef Val = A->getValue();
603 unsigned StackAlignment = Opts.StackAlignment;
604 Val.getAsInteger(10, StackAlignment);
605 Opts.StackAlignment = StackAlignment;
608 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) {
609 StringRef Val = A->getValue();
610 unsigned StackProbeSize = Opts.StackProbeSize;
611 Val.getAsInteger(0, StackProbeSize);
612 Opts.StackProbeSize = StackProbeSize;
615 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
616 StringRef Name = A->getValue();
617 unsigned Method = llvm::StringSwitch<unsigned>(Name)
618 .Case("legacy", CodeGenOptions::Legacy)
619 .Case("non-legacy", CodeGenOptions::NonLegacy)
620 .Case("mixed", CodeGenOptions::Mixed)
623 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
626 Opts.setObjCDispatchMethod(
627 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
632 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false);
634 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
635 StringRef Name = A->getValue();
636 unsigned Model = llvm::StringSwitch<unsigned>(Name)
637 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
638 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
639 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
640 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
643 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
646 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
650 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
651 StringRef Val = A->getValue();
653 Opts.setFPContractMode(CodeGenOptions::FPC_Fast);
654 else if (Val == "on")
655 Opts.setFPContractMode(CodeGenOptions::FPC_On);
656 else if (Val == "off")
657 Opts.setFPContractMode(CodeGenOptions::FPC_Off);
659 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
662 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
663 if (A->getOption().matches(OPT_fpcc_struct_return)) {
664 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
666 assert(A->getOption().matches(OPT_freg_struct_return));
667 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
671 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
672 bool NeedLocTracking = false;
674 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
675 Opts.OptimizationRemarkPattern =
676 GenerateOptimizationRemarkRegex(Diags, Args, A);
677 NeedLocTracking = true;
680 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
681 Opts.OptimizationRemarkMissedPattern =
682 GenerateOptimizationRemarkRegex(Diags, Args, A);
683 NeedLocTracking = true;
686 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
687 Opts.OptimizationRemarkAnalysisPattern =
688 GenerateOptimizationRemarkRegex(Diags, Args, A);
689 NeedLocTracking = true;
692 // If the user requested to use a sample profile for PGO, then the
693 // backend will need to track source location information so the profile
694 // can be incorporated into the IR.
695 if (!Opts.SampleProfileFile.empty())
696 NeedLocTracking = true;
698 // If the user requested a flag that requires source locations available in
699 // the backend, make sure that the backend tracks source location information.
700 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo)
701 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly);
703 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file);
705 // Parse -fsanitize-recover= arguments.
706 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
707 parseSanitizerKinds("-fsanitize-recover=",
708 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
709 Opts.SanitizeRecover);
710 parseSanitizerKinds("-fsanitize-trap=",
711 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags,
714 Opts.CudaGpuBinaryFileNames =
715 Args.getAllArgValues(OPT_fcuda_include_gpubinary);
720 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
722 using namespace options;
723 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
724 Opts.Targets = Args.getAllArgValues(OPT_MT);
725 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
726 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
727 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
728 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
729 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
730 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
731 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes);
732 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
733 Opts.ModuleDependencyOutputDir =
734 Args.getLastArgValue(OPT_module_dependency_dir);
735 if (Args.hasArg(OPT_MV))
736 Opts.OutputFormat = DependencyOutputFormat::NMake;
737 // Add sanitizer blacklists as extra dependencies.
738 // They won't be discovered by the regular preprocessor, so
739 // we let make / ninja to know about this implicit dependency.
740 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry);
741 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
742 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(),
746 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
747 DiagnosticsEngine *Diags) {
748 using namespace options;
751 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
753 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
754 Opts.DiagnosticSerializationFile = A->getValue();
755 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
756 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
757 Opts.Pedantic = Args.hasArg(OPT_pedantic);
758 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
759 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
760 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics);
761 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
764 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
765 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
766 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
768 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
770 // Default behavior is to not to show note include stacks.
771 Opts.ShowNoteIncludeStack = false;
772 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
773 OPT_fno_diagnostics_show_note_include_stack))
774 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
775 Opts.ShowNoteIncludeStack = true;
777 StringRef ShowOverloads =
778 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
779 if (ShowOverloads == "best")
780 Opts.setShowOverloads(Ovl_Best);
781 else if (ShowOverloads == "all")
782 Opts.setShowOverloads(Ovl_All);
786 Diags->Report(diag::err_drv_invalid_value)
787 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
791 StringRef ShowCategory =
792 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
793 if (ShowCategory == "none")
794 Opts.ShowCategories = 0;
795 else if (ShowCategory == "id")
796 Opts.ShowCategories = 1;
797 else if (ShowCategory == "name")
798 Opts.ShowCategories = 2;
802 Diags->Report(diag::err_drv_invalid_value)
803 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
808 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
809 if (Format == "clang")
810 Opts.setFormat(DiagnosticOptions::Clang);
811 else if (Format == "msvc")
812 Opts.setFormat(DiagnosticOptions::MSVC);
813 else if (Format == "msvc-fallback") {
814 Opts.setFormat(DiagnosticOptions::MSVC);
815 Opts.CLFallbackMode = true;
816 } else if (Format == "vi")
817 Opts.setFormat(DiagnosticOptions::Vi);
821 Diags->Report(diag::err_drv_invalid_value)
822 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
826 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
827 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
828 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
829 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
830 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
831 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=",
832 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ),
834 if (Args.hasArg(OPT_verify_ignore_unexpected))
835 DiagMask = DiagnosticLevelMask::All;
836 Opts.setVerifyIgnoreUnexpected(DiagMask);
837 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
838 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
839 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
840 Opts.MacroBacktraceLimit =
841 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
842 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
843 Opts.TemplateBacktraceLimit = getLastArgIntValue(
844 Args, OPT_ftemplate_backtrace_limit,
845 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
846 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
847 Args, OPT_fconstexpr_backtrace_limit,
848 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
849 Opts.SpellCheckingLimit = getLastArgIntValue(
850 Args, OPT_fspell_checking_limit,
851 DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
852 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
853 DiagnosticOptions::DefaultTabStop, Diags);
854 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
855 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
857 Diags->Report(diag::warn_ignoring_ftabstop_value)
858 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
860 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
861 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
862 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
867 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
868 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
871 /// Parse the argument to the -ftest-module-file-extension
872 /// command-line argument.
874 /// \returns true on error, false on success.
875 static bool parseTestModuleFileExtensionArg(StringRef Arg,
876 std::string &BlockName,
877 unsigned &MajorVersion,
878 unsigned &MinorVersion,
880 std::string &UserInfo) {
881 SmallVector<StringRef, 5> Args;
882 Arg.split(Args, ':', 5);
887 if (Args[1].getAsInteger(10, MajorVersion)) return true;
888 if (Args[2].getAsInteger(10, MinorVersion)) return true;
889 if (Args[3].getAsInteger(2, Hashed)) return true;
895 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
896 DiagnosticsEngine &Diags) {
897 using namespace options;
898 Opts.ProgramAction = frontend::ParseSyntaxOnly;
899 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
900 switch (A->getOption().getID()) {
902 llvm_unreachable("Invalid option in group!");
904 Opts.ProgramAction = frontend::ASTDeclList; break;
906 case OPT_ast_dump_lookups:
907 Opts.ProgramAction = frontend::ASTDump; break;
909 Opts.ProgramAction = frontend::ASTPrint; break;
911 Opts.ProgramAction = frontend::ASTView; break;
912 case OPT_dump_raw_tokens:
913 Opts.ProgramAction = frontend::DumpRawTokens; break;
914 case OPT_dump_tokens:
915 Opts.ProgramAction = frontend::DumpTokens; break;
917 Opts.ProgramAction = frontend::EmitAssembly; break;
918 case OPT_emit_llvm_bc:
919 Opts.ProgramAction = frontend::EmitBC; break;
921 Opts.ProgramAction = frontend::EmitHTML; break;
923 Opts.ProgramAction = frontend::EmitLLVM; break;
924 case OPT_emit_llvm_only:
925 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
926 case OPT_emit_codegen_only:
927 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
929 Opts.ProgramAction = frontend::EmitObj; break;
931 Opts.FixItSuffix = A->getValue();
934 Opts.ProgramAction = frontend::FixIt; break;
935 case OPT_emit_module:
936 Opts.ProgramAction = frontend::GenerateModule; break;
938 Opts.ProgramAction = frontend::GeneratePCH; break;
940 Opts.ProgramAction = frontend::GeneratePTH; break;
942 Opts.ProgramAction = frontend::InitOnly; break;
943 case OPT_fsyntax_only:
944 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
945 case OPT_module_file_info:
946 Opts.ProgramAction = frontend::ModuleFileInfo; break;
948 Opts.ProgramAction = frontend::VerifyPCH; break;
949 case OPT_print_decl_contexts:
950 Opts.ProgramAction = frontend::PrintDeclContext; break;
951 case OPT_print_preamble:
952 Opts.ProgramAction = frontend::PrintPreamble; break;
954 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
955 case OPT_rewrite_macros:
956 Opts.ProgramAction = frontend::RewriteMacros; break;
957 case OPT_rewrite_objc:
958 Opts.ProgramAction = frontend::RewriteObjC; break;
959 case OPT_rewrite_test:
960 Opts.ProgramAction = frontend::RewriteTest; break;
962 Opts.ProgramAction = frontend::RunAnalysis; break;
964 Opts.ProgramAction = frontend::MigrateSource; break;
966 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
970 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
971 Opts.Plugins.emplace_back(A->getValue(0));
972 Opts.ProgramAction = frontend::PluginAction;
973 Opts.ActionName = A->getValue();
975 for (const Arg *AA : Args.filtered(OPT_plugin_arg))
976 if (AA->getValue(0) == Opts.ActionName)
977 Opts.PluginArgs.emplace_back(AA->getValue(1));
980 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
981 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size());
982 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i)
983 for (const Arg *A : Args.filtered(OPT_plugin_arg))
984 if (A->getValue(0) == Opts.AddPluginActions[i])
985 Opts.AddPluginArgs[i].emplace_back(A->getValue(1));
987 for (const std::string &Arg :
988 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) {
989 std::string BlockName;
990 unsigned MajorVersion;
991 unsigned MinorVersion;
993 std::string UserInfo;
994 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
995 MinorVersion, Hashed, UserInfo)) {
996 Diags.Report(diag::err_test_module_file_extension_format) << Arg;
1001 // Add the testing module file extension.
1002 Opts.ModuleFileExtensions.push_back(
1003 new TestModuleFileExtension(BlockName, MajorVersion, MinorVersion,
1007 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
1008 Opts.CodeCompletionAt =
1009 ParsedSourceLocation::FromString(A->getValue());
1010 if (Opts.CodeCompletionAt.FileName.empty())
1011 Diags.Report(diag::err_drv_invalid_value)
1012 << A->getAsString(Args) << A->getValue();
1014 Opts.DisableFree = Args.hasArg(OPT_disable_free);
1016 Opts.OutputFile = Args.getLastArgValue(OPT_o);
1017 Opts.Plugins = Args.getAllArgValues(OPT_load);
1018 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1019 Opts.ShowHelp = Args.hasArg(OPT_help);
1020 Opts.ShowStats = Args.hasArg(OPT_print_stats);
1021 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1022 Opts.ShowVersion = Args.hasArg(OPT_version);
1023 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1024 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1025 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
1026 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
1027 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
1028 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
1029 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump);
1030 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
1031 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
1032 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
1033 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
1034 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file);
1035 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
1036 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ);
1037 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files);
1039 Opts.CodeCompleteOpts.IncludeMacros
1040 = Args.hasArg(OPT_code_completion_macros);
1041 Opts.CodeCompleteOpts.IncludeCodePatterns
1042 = Args.hasArg(OPT_code_completion_patterns);
1043 Opts.CodeCompleteOpts.IncludeGlobals
1044 = !Args.hasArg(OPT_no_code_completion_globals);
1045 Opts.CodeCompleteOpts.IncludeBriefComments
1046 = Args.hasArg(OPT_code_completion_brief_comments);
1048 Opts.OverrideRecordLayoutsFile
1049 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
1051 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple));
1053 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
1055 OPT_arcmt_migrate)) {
1056 switch (A->getOption().getID()) {
1058 llvm_unreachable("missed a case");
1059 case OPT_arcmt_check:
1060 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
1062 case OPT_arcmt_modify:
1063 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
1065 case OPT_arcmt_migrate:
1066 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
1070 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
1071 Opts.ARCMTMigrateReportOut
1072 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
1073 Opts.ARCMTMigrateEmitARCErrors
1074 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
1076 if (Args.hasArg(OPT_objcmt_migrate_literals))
1077 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
1078 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
1079 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
1080 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
1081 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
1082 if (Args.hasArg(OPT_objcmt_migrate_property))
1083 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
1084 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
1085 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
1086 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
1087 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
1088 if (Args.hasArg(OPT_objcmt_migrate_annotation))
1089 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
1090 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
1091 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
1092 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
1093 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
1094 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
1095 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
1096 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
1097 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
1098 if (Args.hasArg(OPT_objcmt_atomic_property))
1099 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
1100 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
1101 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
1102 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
1103 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
1104 if (Args.hasArg(OPT_objcmt_migrate_all))
1105 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
1107 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
1109 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
1110 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
1111 Diags.Report(diag::err_drv_argument_not_allowed_with)
1112 << "ARC migration" << "ObjC migration";
1115 InputKind DashX = IK_None;
1116 if (const Arg *A = Args.getLastArg(OPT_x)) {
1117 DashX = llvm::StringSwitch<InputKind>(A->getValue())
1119 .Case("cl", IK_OpenCL)
1120 .Case("cuda", IK_CUDA)
1121 .Case("c++", IK_CXX)
1122 .Case("objective-c", IK_ObjC)
1123 .Case("objective-c++", IK_ObjCXX)
1124 .Case("cpp-output", IK_PreprocessedC)
1125 .Case("assembler-with-cpp", IK_Asm)
1126 .Case("c++-cpp-output", IK_PreprocessedCXX)
1127 .Case("cuda-cpp-output", IK_PreprocessedCuda)
1128 .Case("objective-c-cpp-output", IK_PreprocessedObjC)
1129 .Case("objc-cpp-output", IK_PreprocessedObjC)
1130 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
1131 .Case("objc++-cpp-output", IK_PreprocessedObjCXX)
1132 .Case("c-header", IK_C)
1133 .Case("cl-header", IK_OpenCL)
1134 .Case("objective-c-header", IK_ObjC)
1135 .Case("c++-header", IK_CXX)
1136 .Case("objective-c++-header", IK_ObjCXX)
1137 .Cases("ast", "pcm", IK_AST)
1138 .Case("ir", IK_LLVM_IR)
1140 if (DashX == IK_None)
1141 Diags.Report(diag::err_drv_invalid_value)
1142 << A->getAsString(Args) << A->getValue();
1145 // '-' is the default input if none is given.
1146 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1147 Opts.Inputs.clear();
1149 Inputs.push_back("-");
1150 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1151 InputKind IK = DashX;
1152 if (IK == IK_None) {
1153 IK = FrontendOptions::getInputKindForExtension(
1154 StringRef(Inputs[i]).rsplit('.').second);
1155 // FIXME: Remove this hack.
1159 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK);
1165 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1167 std::string ClangExecutable =
1168 llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
1169 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable);
1171 // Compute the path to the resource directory.
1172 StringRef ClangResourceDir(CLANG_RESOURCE_DIR);
1173 SmallString<128> P(Dir);
1174 if (ClangResourceDir != "")
1175 llvm::sys::path::append(P, ClangResourceDir);
1177 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX,
1178 "clang", CLANG_VERSION_STRING);
1183 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
1184 using namespace options;
1185 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1186 Opts.Verbose = Args.hasArg(OPT_v);
1187 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1188 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
1189 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1190 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
1191 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
1192 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1193 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path);
1194 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
1195 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
1196 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps);
1197 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd);
1198 Opts.ModuleCachePruneInterval =
1199 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
1200 Opts.ModuleCachePruneAfter =
1201 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
1202 Opts.ModulesValidateOncePerBuildSession =
1203 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
1204 Opts.BuildSessionTimestamp =
1205 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
1206 Opts.ModulesValidateSystemHeaders =
1207 Args.hasArg(OPT_fmodules_validate_system_headers);
1208 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ))
1209 Opts.ModuleFormat = A->getValue();
1211 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) {
1212 StringRef MacroDef = A->getValue();
1213 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first);
1216 // Add -I..., -F..., and -index-header-map options in order.
1217 bool IsIndexHeaderMap = false;
1218 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) {
1219 if (A->getOption().matches(OPT_index_header_map)) {
1220 // -index-header-map applies to the next -I or -F.
1221 IsIndexHeaderMap = true;
1225 frontend::IncludeDirGroup Group =
1226 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled;
1228 Opts.AddPath(A->getValue(), Group,
1229 /*IsFramework=*/A->getOption().matches(OPT_F), true);
1230 IsIndexHeaderMap = false;
1233 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
1234 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
1236 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) {
1237 if (A->getOption().matches(OPT_iprefix))
1238 Prefix = A->getValue();
1239 else if (A->getOption().matches(OPT_iwithprefix))
1240 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true);
1242 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true);
1245 for (const Arg *A : Args.filtered(OPT_idirafter))
1246 Opts.AddPath(A->getValue(), frontend::After, false, true);
1247 for (const Arg *A : Args.filtered(OPT_iquote))
1248 Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
1249 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
1250 Opts.AddPath(A->getValue(), frontend::System, false,
1251 !A->getOption().matches(OPT_iwithsysroot));
1252 for (const Arg *A : Args.filtered(OPT_iframework))
1253 Opts.AddPath(A->getValue(), frontend::System, true, true);
1255 // Add the paths for the various language specific isystem flags.
1256 for (const Arg *A : Args.filtered(OPT_c_isystem))
1257 Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
1258 for (const Arg *A : Args.filtered(OPT_cxx_isystem))
1259 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
1260 for (const Arg *A : Args.filtered(OPT_objc_isystem))
1261 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
1262 for (const Arg *A : Args.filtered(OPT_objcxx_isystem))
1263 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
1265 // Add the internal paths from a driver that detects standard include paths.
1267 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) {
1268 frontend::IncludeDirGroup Group = frontend::System;
1269 if (A->getOption().matches(OPT_internal_externc_isystem))
1270 Group = frontend::ExternCSystem;
1271 Opts.AddPath(A->getValue(), Group, false, true);
1274 // Add the path prefixes which are implicitly treated as being system headers.
1276 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix))
1277 Opts.AddSystemHeaderPrefix(
1278 A->getValue(), A->getOption().matches(OPT_system_header_prefix));
1280 for (const Arg *A : Args.filtered(OPT_ivfsoverlay))
1281 Opts.AddVFSOverlayFile(A->getValue());
1284 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
1285 LangStandard::Kind LangStd) {
1286 // Set some properties which depend solely on the input kind; it would be nice
1287 // to move these to the language standard, and have the driver resolve the
1288 // input kind + language standard.
1290 Opts.AsmPreprocessor = 1;
1291 } else if (IK == IK_ObjC ||
1293 IK == IK_PreprocessedObjC ||
1294 IK == IK_PreprocessedObjCXX) {
1295 Opts.ObjC1 = Opts.ObjC2 = 1;
1298 if (LangStd == LangStandard::lang_unspecified) {
1299 // Based on the base language, pick one.
1304 llvm_unreachable("Invalid input kind!");
1306 LangStd = LangStandard::lang_opencl;
1309 case IK_PreprocessedCuda:
1310 LangStd = LangStandard::lang_cuda;
1314 case IK_PreprocessedC:
1316 case IK_PreprocessedObjC:
1317 LangStd = LangStandard::lang_gnu11;
1320 case IK_PreprocessedCXX:
1322 case IK_PreprocessedObjCXX:
1323 LangStd = LangStandard::lang_gnucxx98;
1328 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1329 Opts.LineComment = Std.hasLineComments();
1330 Opts.C99 = Std.isC99();
1331 Opts.C11 = Std.isC11();
1332 Opts.CPlusPlus = Std.isCPlusPlus();
1333 Opts.CPlusPlus11 = Std.isCPlusPlus11();
1334 Opts.CPlusPlus14 = Std.isCPlusPlus14();
1335 Opts.CPlusPlus1z = Std.isCPlusPlus1z();
1336 Opts.Digraphs = Std.hasDigraphs();
1337 Opts.GNUMode = Std.isGNUMode();
1338 Opts.GNUInline = Std.isC89();
1339 Opts.HexFloats = Std.hasHexFloats();
1340 Opts.ImplicitInt = Std.hasImplicitInt();
1342 // Set OpenCL Version.
1343 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL;
1344 if (LangStd == LangStandard::lang_opencl)
1345 Opts.OpenCLVersion = 100;
1346 else if (LangStd == LangStandard::lang_opencl11)
1347 Opts.OpenCLVersion = 110;
1348 else if (LangStd == LangStandard::lang_opencl12)
1349 Opts.OpenCLVersion = 120;
1350 else if (LangStd == LangStandard::lang_opencl20)
1351 Opts.OpenCLVersion = 200;
1353 // OpenCL has some additional defaults.
1357 Opts.CXXOperatorNames = 1;
1358 Opts.LaxVectorConversions = 0;
1359 Opts.DefaultFPContract = 1;
1360 Opts.NativeHalfType = 1;
1363 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda ||
1364 LangStd == LangStandard::lang_cuda;
1366 // OpenCL and C++ both have bool, true, false keywords.
1367 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1369 // OpenCL has half keyword
1370 Opts.Half = Opts.OpenCL;
1372 // C++ has wchar_t keyword.
1373 Opts.WChar = Opts.CPlusPlus;
1375 Opts.GNUKeywords = Opts.GNUMode;
1376 Opts.CXXOperatorNames = Opts.CPlusPlus;
1378 Opts.DollarIdents = !Opts.AsmPreprocessor;
1381 /// Attempt to parse a visibility value out of the given argument.
1382 static Visibility parseVisibility(Arg *arg, ArgList &args,
1383 DiagnosticsEngine &diags) {
1384 StringRef value = arg->getValue();
1385 if (value == "default") {
1386 return DefaultVisibility;
1387 } else if (value == "hidden" || value == "internal") {
1388 return HiddenVisibility;
1389 } else if (value == "protected") {
1390 // FIXME: diagnose if target does not support protected visibility
1391 return ProtectedVisibility;
1394 diags.Report(diag::err_drv_invalid_value)
1395 << arg->getAsString(args) << value;
1396 return DefaultVisibility;
1399 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
1400 DiagnosticsEngine &Diags) {
1401 // FIXME: Cleanup per-file based stuff.
1402 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1403 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
1404 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1405 #define LANGSTANDARD(id, name, desc, features) \
1406 .Case(name, LangStandard::lang_##id)
1407 #include "clang/Frontend/LangStandards.def"
1408 .Default(LangStandard::lang_unspecified);
1409 if (LangStd == LangStandard::lang_unspecified)
1410 Diags.Report(diag::err_drv_invalid_value)
1411 << A->getAsString(Args) << A->getValue();
1413 // Valid standard, check to make sure language and standard are
1415 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1419 case IK_PreprocessedC:
1420 case IK_PreprocessedObjC:
1421 if (!(Std.isC89() || Std.isC99()))
1422 Diags.Report(diag::err_drv_argument_not_allowed_with)
1423 << A->getAsString(Args) << "C/ObjC";
1427 case IK_PreprocessedCXX:
1428 case IK_PreprocessedObjCXX:
1429 if (!Std.isCPlusPlus())
1430 Diags.Report(diag::err_drv_argument_not_allowed_with)
1431 << A->getAsString(Args) << "C++/ObjC++";
1435 Diags.Report(diag::err_drv_argument_not_allowed_with)
1436 << A->getAsString(Args) << "OpenCL";
1439 case IK_PreprocessedCuda:
1440 if (!Std.isCPlusPlus())
1441 Diags.Report(diag::err_drv_argument_not_allowed_with)
1442 << A->getAsString(Args) << "CUDA";
1450 // -cl-std only applies for OpenCL language standards.
1451 // Override the -std option in this case.
1452 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
1453 LangStandard::Kind OpenCLLangStd
1454 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1455 .Case("CL", LangStandard::lang_opencl)
1456 .Case("CL1.1", LangStandard::lang_opencl11)
1457 .Case("CL1.2", LangStandard::lang_opencl12)
1458 .Case("CL2.0", LangStandard::lang_opencl20)
1459 .Default(LangStandard::lang_unspecified);
1461 if (OpenCLLangStd == LangStandard::lang_unspecified) {
1462 Diags.Report(diag::err_drv_invalid_value)
1463 << A->getAsString(Args) << A->getValue();
1466 LangStd = OpenCLLangStd;
1469 CompilerInvocation::setLangDefaults(Opts, IK, LangStd);
1471 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1472 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1473 // while a subset (the non-C++ GNU keywords) is provided by GCC's
1474 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1475 // name, as it doesn't seem a useful distinction.
1476 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
1479 if (Args.hasArg(OPT_fno_operator_names))
1480 Opts.CXXOperatorNames = 0;
1482 if (Args.hasArg(OPT_fcuda_is_device))
1483 Opts.CUDAIsDevice = 1;
1485 if (Args.hasArg(OPT_fcuda_allow_host_calls_from_host_device))
1486 Opts.CUDAAllowHostCallsFromHostDevice = 1;
1488 if (Args.hasArg(OPT_fcuda_disable_target_call_checks))
1489 Opts.CUDADisableTargetCallChecks = 1;
1491 if (Args.hasArg(OPT_fcuda_target_overloads))
1492 Opts.CUDATargetOverloads = 1;
1495 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
1496 StringRef value = arg->getValue();
1497 if (Opts.ObjCRuntime.tryParse(value))
1498 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
1501 if (Args.hasArg(OPT_fobjc_gc_only))
1502 Opts.setGC(LangOptions::GCOnly);
1503 else if (Args.hasArg(OPT_fobjc_gc))
1504 Opts.setGC(LangOptions::HybridGC);
1505 else if (Args.hasArg(OPT_fobjc_arc)) {
1506 Opts.ObjCAutoRefCount = 1;
1507 if (!Opts.ObjCRuntime.allowsARC())
1508 Diags.Report(diag::err_arc_unsupported_on_runtime);
1511 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
1512 // whether the feature is actually enabled. This is predominantly
1513 // determined by -fobjc-runtime, but we allow it to be overridden
1514 // from the command line for testing purposes.
1515 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
1516 Opts.ObjCWeakRuntime = 1;
1518 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
1520 // ObjCWeak determines whether __weak is actually enabled.
1521 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
1522 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) {
1523 if (!weakArg->getOption().matches(OPT_fobjc_weak)) {
1524 assert(!Opts.ObjCWeak);
1525 } else if (Opts.getGC() != LangOptions::NonGC) {
1526 Diags.Report(diag::err_objc_weak_with_gc);
1527 } else if (!Opts.ObjCWeakRuntime) {
1528 Diags.Report(diag::err_objc_weak_unsupported);
1532 } else if (Opts.ObjCAutoRefCount) {
1533 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
1536 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
1537 Opts.ObjCInferRelatedResultType = 0;
1539 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
1540 Opts.ObjCSubscriptingLegacyRuntime =
1541 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
1544 if (Args.hasArg(OPT_fgnu89_inline)) {
1546 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline"
1552 if (Args.hasArg(OPT_fapple_kext)) {
1553 if (!Opts.CPlusPlus)
1554 Diags.Report(diag::warn_c_kext);
1559 if (Args.hasArg(OPT_print_ivar_layout))
1560 Opts.ObjCGCBitmapPrint = 1;
1561 if (Args.hasArg(OPT_fno_constant_cfstrings))
1562 Opts.NoConstantCFStrings = 1;
1564 if (Args.hasArg(OPT_faltivec))
1567 if (Args.hasArg(OPT_fzvector))
1570 if (Args.hasArg(OPT_pthread))
1571 Opts.POSIXThreads = 1;
1573 // The value-visibility mode defaults to "default".
1574 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
1575 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
1577 Opts.setValueVisibilityMode(DefaultVisibility);
1580 // The type-visibility mode defaults to the value-visibility mode.
1581 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
1582 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
1584 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
1587 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
1588 Opts.InlineVisibilityHidden = 1;
1590 if (Args.hasArg(OPT_ftrapv)) {
1591 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
1592 // Set the handler, if one is specified.
1593 Opts.OverflowHandler =
1594 Args.getLastArgValue(OPT_ftrapv_handler);
1596 else if (Args.hasArg(OPT_fwrapv))
1597 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
1599 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
1600 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
1601 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
1602 Opts.MSCompatibilityVersion = 0;
1603 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) {
1605 if (VT.tryParse(A->getValue()))
1606 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
1608 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
1609 VT.getMinor().getValueOr(0) * 100000 +
1610 VT.getSubminor().getValueOr(0);
1613 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1614 // is specified, or -std is set to a conforming mode.
1615 // Trigraphs are disabled by default in c++1z onwards.
1616 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z;
1618 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs);
1620 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
1621 OPT_fno_dollars_in_identifiers,
1623 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
1624 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags);
1625 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
1626 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
1627 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
1629 if (Args.hasArg(OPT_fno_lax_vector_conversions))
1630 Opts.LaxVectorConversions = 0;
1631 if (Args.hasArg(OPT_fno_threadsafe_statics))
1632 Opts.ThreadsafeStatics = 0;
1633 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
1634 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
1635 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
1636 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
1637 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
1639 Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
1640 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
1641 Opts.Blocks = Args.hasArg(OPT_fblocks);
1642 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
1643 Opts.Coroutines = Args.hasArg(OPT_fcoroutines);
1644 Opts.Modules = Args.hasArg(OPT_fmodules);
1645 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse);
1646 Opts.ModulesDeclUse =
1647 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
1648 Opts.ModulesLocalVisibility =
1649 Args.hasArg(OPT_fmodules_local_submodule_visibility);
1650 Opts.ModulesSearchAll = Opts.Modules &&
1651 !Args.hasArg(OPT_fno_modules_search_all) &&
1652 Args.hasArg(OPT_fmodules_search_all);
1653 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
1654 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules);
1655 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
1656 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
1657 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false);
1658 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
1659 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
1660 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
1661 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
1662 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
1663 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation);
1664 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts);
1665 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
1666 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
1667 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
1668 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
1669 Opts.InstantiationDepth =
1670 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags);
1672 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
1673 Opts.ConstexprCallDepth =
1674 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
1675 Opts.ConstexprStepLimit =
1676 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
1677 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
1678 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
1679 Opts.NumLargeByValueCopy =
1680 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
1681 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
1682 Opts.ObjCConstantStringClass =
1683 Args.getLastArgValue(OPT_fconstant_string_class);
1684 Opts.ObjCDefaultSynthProperties =
1685 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
1686 Opts.EncodeExtendedBlockSig =
1687 Args.hasArg(OPT_fencode_extended_block_signature);
1688 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
1689 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
1690 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags);
1691 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
1692 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags);
1693 Opts.Static = Args.hasArg(OPT_static_define);
1694 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
1695 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
1696 || Args.hasArg(OPT_fdump_record_layouts);
1697 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
1698 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
1699 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
1700 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
1701 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
1702 Opts.MRTD = Args.hasArg(OPT_mrtd);
1703 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
1704 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
1705 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
1706 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
1707 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
1708 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
1709 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
1710 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name);
1711 Opts.AppExt = Args.hasArg(OPT_fapplication_extension);
1712 Opts.ImplementationOfModule =
1713 Args.getLastArgValue(OPT_fmodule_implementation_of);
1714 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature);
1715 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end());
1716 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type);
1717 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns);
1718 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm);
1720 // __declspec is enabled by default for the PS4 by the driver, and also
1721 // enabled for Microsoft Extensions or Borland Extensions, here.
1723 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a
1724 // CUDA extension, however it is required for supporting cuda_builtin_vars.h,
1725 // which uses __declspec(property). Once that has been rewritten in terms of
1726 // something more generic, remove the Opts.CUDA term here.
1727 Opts.DeclSpecKeyword =
1728 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec,
1729 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA));
1731 if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() &&
1732 Opts.CurrentModule != Opts.ImplementationOfModule) {
1733 Diags.Report(diag::err_conflicting_module_names)
1734 << Opts.CurrentModule << Opts.ImplementationOfModule;
1737 // For now, we only support local submodule visibility in C++ (because we
1738 // heavily depend on the ODR for merging redefinitions).
1739 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus)
1740 Diags.Report(diag::err_drv_argument_not_allowed_with)
1741 << "-fmodules-local-submodule-visibility" << "C";
1743 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
1744 switch (llvm::StringSwitch<unsigned>(A->getValue())
1745 .Case("target", LangOptions::ASMM_Target)
1746 .Case("no", LangOptions::ASMM_Off)
1747 .Case("yes", LangOptions::ASMM_On)
1750 Diags.Report(diag::err_drv_invalid_value)
1751 << "-faddress-space-map-mangling=" << A->getValue();
1753 case LangOptions::ASMM_Target:
1754 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
1756 case LangOptions::ASMM_On:
1757 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
1759 case LangOptions::ASMM_Off:
1760 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
1765 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
1766 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
1767 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
1770 LangOptions::PPTMK_FullGeneralitySingleInheritance)
1772 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
1774 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
1775 .Default(LangOptions::PPTMK_BestCase);
1776 if (InheritanceModel == LangOptions::PPTMK_BestCase)
1777 Diags.Report(diag::err_drv_invalid_value)
1778 << "-fms-memptr-rep=" << A->getValue();
1780 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
1783 // Check if -fopenmp is specified.
1784 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp);
1786 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls);
1788 // Record whether the __DEPRECATED define was requested.
1789 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
1790 OPT_fno_deprecated_macro,
1793 // FIXME: Eliminate this dependency.
1794 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
1795 OptSize = getOptimizationLevelSize(Args);
1796 Opts.Optimize = Opt != 0;
1797 Opts.OptimizeSize = OptSize != 0;
1799 // This is the __NO_INLINE__ define, which just depends on things like the
1800 // optimization level and -fno-inline, not actually whether the backend has
1801 // inlining enabled.
1802 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline);
1804 Opts.FastMath = Args.hasArg(OPT_ffast_math) ||
1805 Args.hasArg(OPT_cl_fast_relaxed_math);
1806 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) ||
1807 Args.hasArg(OPT_cl_finite_math_only) ||
1808 Args.hasArg(OPT_cl_fast_relaxed_math);
1809 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
1810 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
1811 Args.hasArg(OPT_cl_fast_relaxed_math);
1813 Opts.RetainCommentsFromSystemHeaders =
1814 Args.hasArg(OPT_fretain_comments_from_system_headers);
1816 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
1819 Diags.Report(diag::err_drv_invalid_value)
1820 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
1822 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
1823 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
1824 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
1825 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
1828 // Parse -fsanitize= arguments.
1829 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
1830 Diags, Opts.Sanitize);
1831 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here.
1832 Opts.SanitizeAddressFieldPadding =
1833 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags);
1834 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist);
1837 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
1838 FileManager &FileMgr,
1839 DiagnosticsEngine &Diags) {
1840 using namespace options;
1841 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
1842 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
1843 if (const Arg *A = Args.getLastArg(OPT_token_cache))
1844 Opts.TokenCache = A->getValue();
1846 Opts.TokenCache = Opts.ImplicitPTHInclude;
1847 Opts.UsePredefines = !Args.hasArg(OPT_undef);
1848 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
1849 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
1851 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
1852 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl))
1853 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
1855 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
1856 StringRef Value(A->getValue());
1857 size_t Comma = Value.find(',');
1859 unsigned EndOfLine = 0;
1861 if (Comma == StringRef::npos ||
1862 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
1863 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
1864 Diags.Report(diag::err_drv_preamble_format);
1866 Opts.PrecompiledPreambleBytes.first = Bytes;
1867 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
1871 // Add macros from the command line.
1872 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) {
1873 if (A->getOption().matches(OPT_D))
1874 Opts.addMacroDef(A->getValue());
1876 Opts.addMacroUndef(A->getValue());
1879 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
1881 // Add the ordered list of -includes.
1882 for (const Arg *A : Args.filtered(OPT_include))
1883 Opts.Includes.emplace_back(A->getValue());
1885 for (const Arg *A : Args.filtered(OPT_chain_include))
1886 Opts.ChainedIncludes.emplace_back(A->getValue());
1888 // Include 'altivec.h' if -faltivec option present
1889 if (Args.hasArg(OPT_faltivec))
1890 Opts.Includes.emplace_back("altivec.h");
1892 for (const Arg *A : Args.filtered(OPT_remap_file)) {
1893 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
1895 if (Split.second.empty()) {
1896 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
1900 Opts.addRemappedFile(Split.first, Split.second);
1903 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
1904 StringRef Name = A->getValue();
1905 unsigned Library = llvm::StringSwitch<unsigned>(Name)
1906 .Case("libc++", ARCXX_libcxx)
1907 .Case("libstdc++", ARCXX_libstdcxx)
1908 .Case("none", ARCXX_nolib)
1911 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1913 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
1917 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
1919 frontend::ActionKind Action) {
1920 using namespace options;
1923 case frontend::ASTDeclList:
1924 case frontend::ASTDump:
1925 case frontend::ASTPrint:
1926 case frontend::ASTView:
1927 case frontend::EmitAssembly:
1928 case frontend::EmitBC:
1929 case frontend::EmitHTML:
1930 case frontend::EmitLLVM:
1931 case frontend::EmitLLVMOnly:
1932 case frontend::EmitCodeGenOnly:
1933 case frontend::EmitObj:
1934 case frontend::FixIt:
1935 case frontend::GenerateModule:
1936 case frontend::GeneratePCH:
1937 case frontend::GeneratePTH:
1938 case frontend::ParseSyntaxOnly:
1939 case frontend::ModuleFileInfo:
1940 case frontend::VerifyPCH:
1941 case frontend::PluginAction:
1942 case frontend::PrintDeclContext:
1943 case frontend::RewriteObjC:
1944 case frontend::RewriteTest:
1945 case frontend::RunAnalysis:
1946 case frontend::MigrateSource:
1950 case frontend::DumpRawTokens:
1951 case frontend::DumpTokens:
1952 case frontend::InitOnly:
1953 case frontend::PrintPreamble:
1954 case frontend::PrintPreprocessedInput:
1955 case frontend::RewriteMacros:
1956 case frontend::RunPreprocessorOnly:
1957 Opts.ShowCPP = !Args.hasArg(OPT_dM);
1961 Opts.ShowComments = Args.hasArg(OPT_C);
1962 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
1963 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
1964 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
1965 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
1966 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives);
1969 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
1970 using namespace options;
1971 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
1972 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
1973 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
1974 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
1975 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
1976 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
1977 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ);
1978 // Use the default target triple if unspecified.
1979 if (Opts.Triple.empty())
1980 Opts.Triple = llvm::sys::getDefaultTargetTriple();
1983 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
1984 const char *const *ArgBegin,
1985 const char *const *ArgEnd,
1986 DiagnosticsEngine &Diags) {
1987 bool Success = true;
1989 // Parse the arguments.
1990 std::unique_ptr<OptTable> Opts(createDriverOptTable());
1991 const unsigned IncludedFlagsBitmask = options::CC1Option;
1992 unsigned MissingArgIndex, MissingArgCount;
1994 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex,
1995 MissingArgCount, IncludedFlagsBitmask);
1997 // Check for missing argument error.
1998 if (MissingArgCount) {
1999 Diags.Report(diag::err_drv_missing_argument)
2000 << Args.getArgString(MissingArgIndex) << MissingArgCount;
2004 // Issue errors on unknown arguments.
2005 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) {
2006 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args);
2010 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
2011 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args);
2012 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args);
2013 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags);
2014 ParseCommentArgs(Res.getLangOpts()->CommentOpts, Args);
2015 ParseFileSystemArgs(Res.getFileSystemOpts(), Args);
2016 // FIXME: We shouldn't have to pass the DashX option around here
2017 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags);
2018 ParseTargetArgs(Res.getTargetOpts(), Args);
2019 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
2020 Res.getTargetOpts());
2021 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args);
2022 if (DashX == IK_AST || DashX == IK_LLVM_IR) {
2023 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
2024 // PassManager in BackendUtil.cpp. They need to be initializd no matter
2025 // what the input type is.
2026 if (Args.hasArg(OPT_fobjc_arc))
2027 Res.getLangOpts()->ObjCAutoRefCount = 1;
2028 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
2029 Diags, Res.getLangOpts()->Sanitize);
2031 // Other LangOpts are only initialzed when the input is not AST or LLVM IR.
2032 ParseLangArgs(*Res.getLangOpts(), Args, DashX, Diags);
2033 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
2034 Res.getLangOpts()->ObjCExceptions = 1;
2036 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of
2037 // PCH file and find the original header name. Remove the need to do that in
2038 // ParsePreprocessorArgs and remove the FileManager
2039 // parameters from the function and the "FileManager.h" #include.
2040 FileManager FileMgr(Res.getFileSystemOpts());
2041 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags);
2042 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args,
2043 Res.getFrontendOpts().ProgramAction);
2049 class ModuleSignature {
2050 SmallVector<uint64_t, 16> Data;
2055 ModuleSignature() : CurBit(0), CurValue(0) { }
2057 void add(uint64_t Value, unsigned Bits);
2058 void add(StringRef Value);
2061 llvm::APInt getAsInteger() const;
2065 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) {
2066 CurValue |= Value << CurBit;
2067 if (CurBit + NumBits < 64) {
2072 // Add the current word.
2073 Data.push_back(CurValue);
2076 CurValue = Value >> (64-CurBit);
2079 CurBit = (CurBit+NumBits) & 63;
2082 void ModuleSignature::flush() {
2086 Data.push_back(CurValue);
2091 void ModuleSignature::add(StringRef Value) {
2092 for (auto &c : Value)
2096 llvm::APInt ModuleSignature::getAsInteger() const {
2097 return llvm::APInt(Data.size() * 64, Data);
2100 std::string CompilerInvocation::getModuleHash() const {
2101 // Note: For QoI reasons, the things we use as a hash here should all be
2102 // dumped via the -module-info flag.
2103 using llvm::hash_code;
2104 using llvm::hash_value;
2105 using llvm::hash_combine;
2107 // Start the signature with the compiler version.
2108 // FIXME: We'd rather use something more cryptographically sound than
2109 // CityHash, but this will do for now.
2110 hash_code code = hash_value(getClangFullRepositoryVersion());
2112 // Extend the signature with the language options
2113 #define LANGOPT(Name, Bits, Default, Description) \
2114 code = hash_combine(code, LangOpts->Name);
2115 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
2116 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
2117 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
2118 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
2119 #include "clang/Basic/LangOptions.def"
2121 for (StringRef Feature : LangOpts->ModuleFeatures)
2122 code = hash_combine(code, Feature);
2124 // Extend the signature with the target options.
2125 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
2127 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i)
2128 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]);
2130 // Extend the signature with preprocessor options.
2131 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
2132 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
2133 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
2135 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator
2136 I = getPreprocessorOpts().Macros.begin(),
2137 IEnd = getPreprocessorOpts().Macros.end();
2139 // If we're supposed to ignore this macro for the purposes of modules,
2140 // don't put it into the hash.
2141 if (!hsOpts.ModulesIgnoreMacros.empty()) {
2142 // Check whether we're ignoring this macro.
2143 StringRef MacroDef = I->first;
2144 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first))
2148 code = hash_combine(code, I->first, I->second);
2151 // Extend the signature with the sysroot.
2152 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes,
2153 hsOpts.UseStandardSystemIncludes,
2154 hsOpts.UseStandardCXXIncludes,
2156 code = hash_combine(code, hsOpts.ResourceDir);
2158 // Extend the signature with the user build path.
2159 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
2161 // Extend the signature with the module file extensions.
2162 const FrontendOptions &frontendOpts = getFrontendOpts();
2163 for (auto ext : frontendOpts.ModuleFileExtensions) {
2164 code = ext->hashExtension(code);
2167 // Darwin-specific hack: if we have a sysroot, use the contents and
2168 // modification time of
2169 // $sysroot/System/Library/CoreServices/SystemVersion.plist
2170 // as part of the module hash.
2171 if (!hsOpts.Sysroot.empty()) {
2172 SmallString<128> systemVersionFile;
2173 systemVersionFile += hsOpts.Sysroot;
2174 llvm::sys::path::append(systemVersionFile, "System");
2175 llvm::sys::path::append(systemVersionFile, "Library");
2176 llvm::sys::path::append(systemVersionFile, "CoreServices");
2177 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist");
2179 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer =
2180 llvm::MemoryBuffer::getFile(systemVersionFile);
2182 code = hash_combine(code, buffer.get()->getBuffer());
2184 struct stat statBuf;
2185 if (stat(systemVersionFile.c_str(), &statBuf) == 0)
2186 code = hash_combine(code, statBuf.st_mtime);
2190 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
2195 template<typename IntTy>
2196 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
2198 DiagnosticsEngine *Diags) {
2199 IntTy Res = Default;
2200 if (Arg *A = Args.getLastArg(Id)) {
2201 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
2203 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)
2211 // Declared in clang/Frontend/Utils.h.
2212 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
2213 DiagnosticsEngine *Diags) {
2214 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags);
2217 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
2219 DiagnosticsEngine *Diags) {
2220 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags);
2223 void BuryPointer(const void *Ptr) {
2224 // This function may be called only a small fixed amount of times per each
2225 // invocation, otherwise we do actually have a leak which we want to report.
2226 // If this function is called more than kGraveYardMaxSize times, the pointers
2227 // will not be properly buried and a leak detector will report a leak, which
2228 // is what we want in such case.
2229 static const size_t kGraveYardMaxSize = 16;
2230 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize];
2231 static std::atomic<unsigned> GraveYardSize;
2232 unsigned Idx = GraveYardSize++;
2233 if (Idx >= kGraveYardMaxSize)
2235 GraveYard[Idx] = Ptr;
2238 IntrusiveRefCntPtr<vfs::FileSystem>
2239 createVFSFromCompilerInvocation(const CompilerInvocation &CI,
2240 DiagnosticsEngine &Diags) {
2241 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
2242 return vfs::getRealFileSystem();
2244 IntrusiveRefCntPtr<vfs::OverlayFileSystem>
2245 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem()));
2246 // earlier vfs files are on the bottom
2247 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
2248 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
2249 llvm::MemoryBuffer::getFile(File);
2251 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
2252 return IntrusiveRefCntPtr<vfs::FileSystem>();
2255 IntrusiveRefCntPtr<vfs::FileSystem> FS =
2256 vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/ nullptr);
2258 Diags.Report(diag::err_invalid_vfs_overlay) << File;
2259 return IntrusiveRefCntPtr<vfs::FileSystem>();
2261 Overlay->pushOverlay(FS);
2265 } // end namespace clang