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/Basic/Builtins.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/CompilerInvocation.h"
19 #include "clang/Frontend/FrontendDiagnostic.h"
20 #include "clang/Frontend/LangStandard.h"
21 #include "clang/Frontend/Utils.h"
22 #include "clang/Lex/HeaderSearchOptions.h"
23 #include "clang/Serialization/ASTReader.h"
24 #include "clang/Serialization/ModuleFileExtension.h"
25 #include "llvm/ADT/Hashing.h"
26 #include "llvm/ADT/STLExtras.h"
27 #include "llvm/ADT/SmallVector.h"
28 #include "llvm/ADT/StringExtras.h"
29 #include "llvm/ADT/StringSwitch.h"
30 #include "llvm/ADT/Triple.h"
31 #include "llvm/Linker/Linker.h"
32 #include "llvm/Option/Arg.h"
33 #include "llvm/Option/ArgList.h"
34 #include "llvm/Option/OptTable.h"
35 #include "llvm/Option/Option.h"
36 #include "llvm/Support/CodeGen.h"
37 #include "llvm/Support/ErrorHandling.h"
38 #include "llvm/Support/FileSystem.h"
39 #include "llvm/Support/Host.h"
40 #include "llvm/Support/Path.h"
41 #include "llvm/Support/Process.h"
42 #include "llvm/Target/TargetOptions.h"
46 #include <system_error>
47 using namespace clang;
49 //===----------------------------------------------------------------------===//
51 //===----------------------------------------------------------------------===//
53 CompilerInvocationBase::CompilerInvocationBase()
54 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
55 DiagnosticOpts(new DiagnosticOptions()),
56 HeaderSearchOpts(new HeaderSearchOptions()),
57 PreprocessorOpts(new PreprocessorOptions()) {}
59 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X)
60 : RefCountedBase<CompilerInvocation>(),
61 LangOpts(new LangOptions(*X.getLangOpts())),
62 TargetOpts(new TargetOptions(X.getTargetOpts())),
63 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
64 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
65 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {}
67 CompilerInvocationBase::~CompilerInvocationBase() {}
69 //===----------------------------------------------------------------------===//
70 // Deserialization (from args)
71 //===----------------------------------------------------------------------===//
73 using namespace clang::driver;
74 using namespace clang::driver::options;
75 using namespace llvm::opt;
79 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
80 DiagnosticsEngine &Diags) {
81 unsigned DefaultOpt = 0;
82 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable))
85 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
86 if (A->getOption().matches(options::OPT_O0))
89 if (A->getOption().matches(options::OPT_Ofast))
92 assert (A->getOption().matches(options::OPT_O));
94 StringRef S(A->getValue());
95 if (S == "s" || S == "z" || S.empty())
98 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags);
104 static unsigned getOptimizationLevelSize(ArgList &Args) {
105 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
106 if (A->getOption().matches(options::OPT_O)) {
107 switch (A->getValue()[0]) {
120 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
121 OptSpecifier GroupWithValue,
122 std::vector<std::string> &Diagnostics) {
123 for (Arg *A : Args.filtered(Group)) {
124 if (A->getOption().getKind() == Option::FlagClass) {
125 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
126 // its name (minus the "W" or "R" at the beginning) to the warning list.
127 Diagnostics.push_back(A->getOption().getName().drop_front(1));
128 } else if (A->getOption().matches(GroupWithValue)) {
129 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group.
130 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-"));
132 // Otherwise, add its value (for OPT_W_Joined and similar).
133 for (const char *Arg : A->getValues())
134 Diagnostics.emplace_back(Arg);
139 static void getAllNoBuiltinFuncValues(ArgList &Args,
140 std::vector<std::string> &Funcs) {
141 SmallVector<const char *, 8> Values;
142 for (const auto &Arg : Args) {
143 const Option &O = Arg->getOption();
144 if (O.matches(options::OPT_fno_builtin_)) {
145 const char *FuncName = Arg->getValue();
146 if (Builtin::Context::isBuiltinFunc(FuncName))
147 Values.push_back(FuncName);
150 Funcs.insert(Funcs.end(), Values.begin(), Values.end());
153 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
154 DiagnosticsEngine &Diags) {
155 using namespace options;
157 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
158 StringRef Name = A->getValue();
159 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
160 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
161 .Case(CMDFLAG, NAME##Model)
162 #include "clang/StaticAnalyzer/Core/Analyses.def"
164 if (Value == NumStores) {
165 Diags.Report(diag::err_drv_invalid_value)
166 << A->getAsString(Args) << Name;
169 Opts.AnalysisStoreOpt = Value;
173 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
174 StringRef Name = A->getValue();
175 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
176 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
177 .Case(CMDFLAG, NAME##Model)
178 #include "clang/StaticAnalyzer/Core/Analyses.def"
179 .Default(NumConstraints);
180 if (Value == NumConstraints) {
181 Diags.Report(diag::err_drv_invalid_value)
182 << A->getAsString(Args) << Name;
185 Opts.AnalysisConstraintsOpt = Value;
189 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
190 StringRef Name = A->getValue();
191 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
192 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
193 .Case(CMDFLAG, PD_##NAME)
194 #include "clang/StaticAnalyzer/Core/Analyses.def"
195 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
196 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
197 Diags.Report(diag::err_drv_invalid_value)
198 << A->getAsString(Args) << Name;
201 Opts.AnalysisDiagOpt = Value;
205 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
206 StringRef Name = A->getValue();
207 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
208 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
210 #include "clang/StaticAnalyzer/Core/Analyses.def"
211 .Default(NumPurgeModes);
212 if (Value == NumPurgeModes) {
213 Diags.Report(diag::err_drv_invalid_value)
214 << A->getAsString(Args) << Name;
217 Opts.AnalysisPurgeOpt = Value;
221 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
222 StringRef Name = A->getValue();
223 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
224 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
226 #include "clang/StaticAnalyzer/Core/Analyses.def"
227 .Default(NumInliningModes);
228 if (Value == NumInliningModes) {
229 Diags.Report(diag::err_drv_invalid_value)
230 << A->getAsString(Args) << Name;
233 Opts.InliningMode = Value;
237 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
238 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks);
240 Opts.visualizeExplodedGraphWithGraphViz =
241 Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
242 Opts.visualizeExplodedGraphWithUbiGraph =
243 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
244 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
245 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
246 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
247 Opts.AnalyzeNestedBlocks =
248 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
249 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume);
250 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
251 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
252 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
253 Opts.maxBlockVisitOnPath =
254 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags);
255 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
256 Opts.InlineMaxStackDepth =
257 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth,
258 Opts.InlineMaxStackDepth, Diags);
260 Opts.CheckersControlList.clear();
262 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) {
264 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
265 // We can have a list of comma separated checker names, e.g:
266 // '-analyzer-checker=cocoa,unix'
267 StringRef checkerList = A->getValue();
268 SmallVector<StringRef, 4> checkers;
269 checkerList.split(checkers, ",");
270 for (StringRef checker : checkers)
271 Opts.CheckersControlList.emplace_back(checker, enable);
274 // Go through the analyzer configuration options.
275 for (const Arg *A : Args.filtered(OPT_analyzer_config)) {
277 // We can have a list of comma separated config names, e.g:
278 // '-analyzer-config key1=val1,key2=val2'
279 StringRef configList = A->getValue();
280 SmallVector<StringRef, 4> configVals;
281 configList.split(configVals, ",");
282 for (unsigned i = 0, e = configVals.size(); i != e; ++i) {
284 std::tie(key, val) = configVals[i].split("=");
286 Diags.Report(SourceLocation(),
287 diag::err_analyzer_config_no_value) << configVals[i];
291 if (val.find('=') != StringRef::npos) {
292 Diags.Report(SourceLocation(),
293 diag::err_analyzer_config_multiple_values)
298 Opts.Config[key] = val;
305 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
306 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
307 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
311 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
312 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
313 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
316 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) {
317 if (Arg *A = Args.getLastArg(OPT_mcode_model)) {
318 StringRef Value = A->getValue();
319 if (Value == "small" || Value == "kernel" || Value == "medium" ||
322 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
327 /// \brief Create a new Regex instance out of the string value in \p RpassArg.
328 /// It returns a pointer to the newly generated Regex instance.
329 static std::shared_ptr<llvm::Regex>
330 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args,
332 StringRef Val = RpassArg->getValue();
333 std::string RegexError;
334 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val);
335 if (!Pattern->isValid(RegexError)) {
336 Diags.Report(diag::err_drv_optimization_remark_pattern)
337 << RegexError << RpassArg->getAsString(Args);
343 static bool parseDiagnosticLevelMask(StringRef FlagName,
344 const std::vector<std::string> &Levels,
345 DiagnosticsEngine *Diags,
346 DiagnosticLevelMask &M) {
348 for (const auto &Level : Levels) {
349 DiagnosticLevelMask const PM =
350 llvm::StringSwitch<DiagnosticLevelMask>(Level)
351 .Case("note", DiagnosticLevelMask::Note)
352 .Case("remark", DiagnosticLevelMask::Remark)
353 .Case("warning", DiagnosticLevelMask::Warning)
354 .Case("error", DiagnosticLevelMask::Error)
355 .Default(DiagnosticLevelMask::None);
356 if (PM == DiagnosticLevelMask::None) {
359 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level;
366 static void parseSanitizerKinds(StringRef FlagName,
367 const std::vector<std::string> &Sanitizers,
368 DiagnosticsEngine &Diags, SanitizerSet &S) {
369 for (const auto &Sanitizer : Sanitizers) {
370 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false);
372 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer;
378 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
379 DiagnosticsEngine &Diags,
380 const TargetOptions &TargetOpts) {
381 using namespace options;
383 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple);
385 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
386 // TODO: This could be done in Driver
387 unsigned MaxOptLevel = 3;
388 if (OptimizationLevel > MaxOptLevel) {
389 // If the optimization level is not supported, fall back on the default
391 Diags.Report(diag::warn_drv_optimization_value)
392 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
393 OptimizationLevel = MaxOptLevel;
395 Opts.OptimizationLevel = OptimizationLevel;
397 // We must always run at least the always inlining pass.
399 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
400 : CodeGenOptions::OnlyAlwaysInlining);
401 // -fno-inline-functions overrides OptimizationLevel > 1.
402 Opts.NoInline = Args.hasArg(OPT_fno_inline);
403 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ?
404 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining());
406 if (Arg *A = Args.getLastArg(OPT_fveclib)) {
407 StringRef Name = A->getValue();
408 if (Name == "Accelerate")
409 Opts.setVecLib(CodeGenOptions::Accelerate);
410 else if (Name == "none")
411 Opts.setVecLib(CodeGenOptions::NoLibrary);
413 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
416 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) {
418 llvm::StringSwitch<unsigned>(A->getValue())
419 .Case("line-tables-only", CodeGenOptions::DebugLineTablesOnly)
420 .Case("limited", CodeGenOptions::LimitedDebugInfo)
421 .Case("standalone", CodeGenOptions::FullDebugInfo)
424 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
427 Opts.setDebugInfo(static_cast<CodeGenOptions::DebugInfoKind>(Val));
429 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) {
430 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
431 .Case("gdb", CodeGenOptions::DebuggerKindGDB)
432 .Case("lldb", CodeGenOptions::DebuggerKindLLDB)
433 .Case("sce", CodeGenOptions::DebuggerKindSCE)
436 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
439 Opts.setDebuggerTuning(static_cast<CodeGenOptions::DebuggerKind>(Val));
441 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags);
442 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
443 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview);
444 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
445 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs);
446 Opts.DebugExplicitImport = Triple.isPS4CPU();
448 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ))
449 Opts.DebugPrefixMap.insert(StringRef(Arg).split('='));
452 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists))
453 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
455 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
456 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes);
457 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
458 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
459 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
460 OPT_fuse_register_sized_bitfield_access);
461 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
462 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
463 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
464 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
465 Opts.NoCommon = Args.hasArg(OPT_fno_common);
466 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
467 Opts.OptimizeSize = getOptimizationLevelSize(Args);
468 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
469 Args.hasArg(OPT_ffreestanding));
470 if (Opts.SimplifyLibCalls)
471 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
473 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
474 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize));
475 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
477 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
478 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
479 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
480 Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate) ||
481 Args.hasArg(OPT_fprofile_instr_generate_EQ);
482 Opts.InstrProfileOutput = Args.getLastArgValue(OPT_fprofile_instr_generate_EQ);
483 Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ);
484 Opts.CoverageMapping =
485 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false);
486 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
487 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
488 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
489 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
490 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
491 Opts.CodeModel = getCodeModel(Args, Diags);
492 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
494 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg));
495 Opts.DisableFree = Args.hasArg(OPT_disable_free);
496 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
497 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
498 if (Arg *A = Args.getLastArg(OPT_meabi)) {
499 StringRef Value = A->getValue();
500 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value)
501 .Case("default", llvm::EABI::Default)
502 .Case("4", llvm::EABI::EABI4)
503 .Case("5", llvm::EABI::EABI5)
504 .Case("gnu", llvm::EABI::GNU)
505 .Default(llvm::EABI::Unknown);
506 if (EABIVersion == llvm::EABI::Unknown)
507 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
510 Opts.EABIVersion = Value;
512 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable);
513 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
514 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
515 Args.hasArg(OPT_cl_finite_math_only) ||
516 Args.hasArg(OPT_cl_fast_relaxed_math));
517 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
518 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
519 Args.hasArg(OPT_cl_finite_math_only) ||
520 Args.hasArg(OPT_cl_fast_relaxed_math));
521 Opts.NoSignedZeros = Args.hasArg(OPT_fno_signed_zeros);
522 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
523 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
524 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
525 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
526 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
527 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
528 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
529 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
530 Opts.IncrementalLinkerCompatible =
531 Args.hasArg(OPT_mincremental_linker_compatible);
532 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
533 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
534 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
535 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
536 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
537 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers);
538 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
539 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
540 Args.hasArg(OPT_cl_fast_relaxed_math);
541 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
542 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
543 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
544 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
545 Diags.Report(diag::err_drv_invalid_value)
546 << Args.getLastArg(OPT_mthread_model)->getAsString(Args)
548 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
549 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
551 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
552 OPT_fno_function_sections, false);
553 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
554 OPT_fno_data_sections, false);
555 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
556 OPT_fno_unique_section_names, true);
558 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
560 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ);
561 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ);
562 Opts.EmitFunctionSummary = A && A->containsValue("thin");
563 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) {
564 if (IK != IK_LLVM_IR)
565 Diags.Report(diag::err_drv_argument_only_allowed_with)
566 << A->getAsString(Args) << "-x ir";
567 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ);
570 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile);
572 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive);
573 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
574 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
576 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
577 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
579 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
580 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
581 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
582 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
583 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file);
584 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
585 Opts.CoverageNoFunctionNamesInData =
586 Args.hasArg(OPT_coverage_no_function_names_in_data);
587 Opts.CoverageExitBlockBeforeBody =
588 Args.hasArg(OPT_coverage_exit_block_before_body);
589 if (Args.hasArg(OPT_coverage_version_EQ)) {
590 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
591 if (CoverageVersion.size() != 4) {
592 Diags.Report(diag::err_drv_invalid_value)
593 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
596 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
601 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
602 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
603 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
604 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections);
605 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
606 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) {
607 unsigned LinkFlags = llvm::Linker::Flags::None;
608 if (A->getOption().matches(OPT_mlink_cuda_bitcode))
609 LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded |
610 llvm::Linker::Flags::InternalizeLinkedSymbols;
611 Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue()));
613 Opts.SanitizeCoverageType =
614 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags);
615 Opts.SanitizeCoverageIndirectCalls =
616 Args.hasArg(OPT_fsanitize_coverage_indirect_calls);
617 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb);
618 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp);
619 Opts.SanitizeCoverage8bitCounters =
620 Args.hasArg(OPT_fsanitize_coverage_8bit_counters);
621 Opts.SanitizeMemoryTrackOrigins =
622 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
623 Opts.SanitizeMemoryUseAfterDtor =
624 Args.hasArg(OPT_fsanitize_memory_use_after_dtor);
625 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso);
627 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
628 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
629 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
630 StringRef Val = A->getValue();
631 unsigned StackAlignment = Opts.StackAlignment;
632 Val.getAsInteger(10, StackAlignment);
633 Opts.StackAlignment = StackAlignment;
636 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) {
637 StringRef Val = A->getValue();
638 unsigned StackProbeSize = Opts.StackProbeSize;
639 Val.getAsInteger(0, StackProbeSize);
640 Opts.StackProbeSize = StackProbeSize;
643 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
644 StringRef Name = A->getValue();
645 unsigned Method = llvm::StringSwitch<unsigned>(Name)
646 .Case("legacy", CodeGenOptions::Legacy)
647 .Case("non-legacy", CodeGenOptions::NonLegacy)
648 .Case("mixed", CodeGenOptions::Mixed)
651 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
654 Opts.setObjCDispatchMethod(
655 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
660 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false);
662 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
663 StringRef Name = A->getValue();
664 unsigned Model = llvm::StringSwitch<unsigned>(Name)
665 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
666 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
667 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
668 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
671 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
674 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
678 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
679 StringRef Val = A->getValue();
681 Opts.setFPContractMode(CodeGenOptions::FPC_Fast);
682 else if (Val == "on")
683 Opts.setFPContractMode(CodeGenOptions::FPC_On);
684 else if (Val == "off")
685 Opts.setFPContractMode(CodeGenOptions::FPC_Off);
687 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
690 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
691 if (A->getOption().matches(OPT_fpcc_struct_return)) {
692 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
694 assert(A->getOption().matches(OPT_freg_struct_return));
695 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
699 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
700 bool NeedLocTracking = false;
702 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
703 Opts.OptimizationRemarkPattern =
704 GenerateOptimizationRemarkRegex(Diags, Args, A);
705 NeedLocTracking = true;
708 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
709 Opts.OptimizationRemarkMissedPattern =
710 GenerateOptimizationRemarkRegex(Diags, Args, A);
711 NeedLocTracking = true;
714 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
715 Opts.OptimizationRemarkAnalysisPattern =
716 GenerateOptimizationRemarkRegex(Diags, Args, A);
717 NeedLocTracking = true;
720 // If the user requested to use a sample profile for PGO, then the
721 // backend will need to track source location information so the profile
722 // can be incorporated into the IR.
723 if (!Opts.SampleProfileFile.empty())
724 NeedLocTracking = true;
726 // If the user requested a flag that requires source locations available in
727 // the backend, make sure that the backend tracks source location information.
728 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo)
729 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly);
731 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file);
733 // Parse -fsanitize-recover= arguments.
734 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
735 parseSanitizerKinds("-fsanitize-recover=",
736 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
737 Opts.SanitizeRecover);
738 parseSanitizerKinds("-fsanitize-trap=",
739 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags,
742 Opts.CudaGpuBinaryFileNames =
743 Args.getAllArgValues(OPT_fcuda_include_gpubinary);
748 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
750 using namespace options;
751 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
752 Opts.Targets = Args.getAllArgValues(OPT_MT);
753 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
754 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
755 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
756 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
757 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
758 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
759 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes);
760 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
761 Opts.ModuleDependencyOutputDir =
762 Args.getLastArgValue(OPT_module_dependency_dir);
763 if (Args.hasArg(OPT_MV))
764 Opts.OutputFormat = DependencyOutputFormat::NMake;
765 // Add sanitizer blacklists as extra dependencies.
766 // They won't be discovered by the regular preprocessor, so
767 // we let make / ninja to know about this implicit dependency.
768 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry);
769 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
770 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(),
774 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
775 DiagnosticsEngine *Diags) {
776 using namespace options;
779 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
781 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
782 Opts.DiagnosticSerializationFile = A->getValue();
783 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
784 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
785 Opts.Pedantic = Args.hasArg(OPT_pedantic);
786 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
787 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
788 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics);
789 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
792 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
793 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
794 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
796 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
798 // Default behavior is to not to show note include stacks.
799 Opts.ShowNoteIncludeStack = false;
800 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
801 OPT_fno_diagnostics_show_note_include_stack))
802 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
803 Opts.ShowNoteIncludeStack = true;
805 StringRef ShowOverloads =
806 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
807 if (ShowOverloads == "best")
808 Opts.setShowOverloads(Ovl_Best);
809 else if (ShowOverloads == "all")
810 Opts.setShowOverloads(Ovl_All);
814 Diags->Report(diag::err_drv_invalid_value)
815 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
819 StringRef ShowCategory =
820 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
821 if (ShowCategory == "none")
822 Opts.ShowCategories = 0;
823 else if (ShowCategory == "id")
824 Opts.ShowCategories = 1;
825 else if (ShowCategory == "name")
826 Opts.ShowCategories = 2;
830 Diags->Report(diag::err_drv_invalid_value)
831 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
836 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
837 if (Format == "clang")
838 Opts.setFormat(DiagnosticOptions::Clang);
839 else if (Format == "msvc")
840 Opts.setFormat(DiagnosticOptions::MSVC);
841 else if (Format == "msvc-fallback") {
842 Opts.setFormat(DiagnosticOptions::MSVC);
843 Opts.CLFallbackMode = true;
844 } else if (Format == "vi")
845 Opts.setFormat(DiagnosticOptions::Vi);
849 Diags->Report(diag::err_drv_invalid_value)
850 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
854 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
855 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
856 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
857 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
858 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
859 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=",
860 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ),
862 if (Args.hasArg(OPT_verify_ignore_unexpected))
863 DiagMask = DiagnosticLevelMask::All;
864 Opts.setVerifyIgnoreUnexpected(DiagMask);
865 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
866 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
867 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
868 Opts.MacroBacktraceLimit =
869 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
870 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
871 Opts.TemplateBacktraceLimit = getLastArgIntValue(
872 Args, OPT_ftemplate_backtrace_limit,
873 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
874 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
875 Args, OPT_fconstexpr_backtrace_limit,
876 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
877 Opts.SpellCheckingLimit = getLastArgIntValue(
878 Args, OPT_fspell_checking_limit,
879 DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
880 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
881 DiagnosticOptions::DefaultTabStop, Diags);
882 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
883 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
885 Diags->Report(diag::warn_ignoring_ftabstop_value)
886 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
888 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
889 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
890 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
895 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
896 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
899 /// Parse the argument to the -ftest-module-file-extension
900 /// command-line argument.
902 /// \returns true on error, false on success.
903 static bool parseTestModuleFileExtensionArg(StringRef Arg,
904 std::string &BlockName,
905 unsigned &MajorVersion,
906 unsigned &MinorVersion,
908 std::string &UserInfo) {
909 SmallVector<StringRef, 5> Args;
910 Arg.split(Args, ':', 5);
915 if (Args[1].getAsInteger(10, MajorVersion)) return true;
916 if (Args[2].getAsInteger(10, MinorVersion)) return true;
917 if (Args[3].getAsInteger(2, Hashed)) return true;
923 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
924 DiagnosticsEngine &Diags) {
925 using namespace options;
926 Opts.ProgramAction = frontend::ParseSyntaxOnly;
927 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
928 switch (A->getOption().getID()) {
930 llvm_unreachable("Invalid option in group!");
932 Opts.ProgramAction = frontend::ASTDeclList; break;
934 case OPT_ast_dump_lookups:
935 Opts.ProgramAction = frontend::ASTDump; break;
937 Opts.ProgramAction = frontend::ASTPrint; break;
939 Opts.ProgramAction = frontend::ASTView; break;
940 case OPT_dump_raw_tokens:
941 Opts.ProgramAction = frontend::DumpRawTokens; break;
942 case OPT_dump_tokens:
943 Opts.ProgramAction = frontend::DumpTokens; break;
945 Opts.ProgramAction = frontend::EmitAssembly; break;
946 case OPT_emit_llvm_bc:
947 Opts.ProgramAction = frontend::EmitBC; break;
949 Opts.ProgramAction = frontend::EmitHTML; break;
951 Opts.ProgramAction = frontend::EmitLLVM; break;
952 case OPT_emit_llvm_only:
953 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
954 case OPT_emit_codegen_only:
955 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
957 Opts.ProgramAction = frontend::EmitObj; break;
959 Opts.FixItSuffix = A->getValue();
962 Opts.ProgramAction = frontend::FixIt; break;
963 case OPT_emit_module:
964 Opts.ProgramAction = frontend::GenerateModule; break;
966 Opts.ProgramAction = frontend::GeneratePCH; break;
968 Opts.ProgramAction = frontend::GeneratePTH; break;
970 Opts.ProgramAction = frontend::InitOnly; break;
971 case OPT_fsyntax_only:
972 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
973 case OPT_module_file_info:
974 Opts.ProgramAction = frontend::ModuleFileInfo; break;
976 Opts.ProgramAction = frontend::VerifyPCH; break;
977 case OPT_print_decl_contexts:
978 Opts.ProgramAction = frontend::PrintDeclContext; break;
979 case OPT_print_preamble:
980 Opts.ProgramAction = frontend::PrintPreamble; break;
982 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
983 case OPT_rewrite_macros:
984 Opts.ProgramAction = frontend::RewriteMacros; break;
985 case OPT_rewrite_objc:
986 Opts.ProgramAction = frontend::RewriteObjC; break;
987 case OPT_rewrite_test:
988 Opts.ProgramAction = frontend::RewriteTest; break;
990 Opts.ProgramAction = frontend::RunAnalysis; break;
992 Opts.ProgramAction = frontend::MigrateSource; break;
994 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
998 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
999 Opts.Plugins.emplace_back(A->getValue(0));
1000 Opts.ProgramAction = frontend::PluginAction;
1001 Opts.ActionName = A->getValue();
1003 for (const Arg *AA : Args.filtered(OPT_plugin_arg))
1004 if (AA->getValue(0) == Opts.ActionName)
1005 Opts.PluginArgs.emplace_back(AA->getValue(1));
1008 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
1009 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size());
1010 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i)
1011 for (const Arg *A : Args.filtered(OPT_plugin_arg))
1012 if (A->getValue(0) == Opts.AddPluginActions[i])
1013 Opts.AddPluginArgs[i].emplace_back(A->getValue(1));
1015 for (const std::string &Arg :
1016 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) {
1017 std::string BlockName;
1018 unsigned MajorVersion;
1019 unsigned MinorVersion;
1021 std::string UserInfo;
1022 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
1023 MinorVersion, Hashed, UserInfo)) {
1024 Diags.Report(diag::err_test_module_file_extension_format) << Arg;
1029 // Add the testing module file extension.
1030 Opts.ModuleFileExtensions.push_back(
1031 new TestModuleFileExtension(BlockName, MajorVersion, MinorVersion,
1035 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
1036 Opts.CodeCompletionAt =
1037 ParsedSourceLocation::FromString(A->getValue());
1038 if (Opts.CodeCompletionAt.FileName.empty())
1039 Diags.Report(diag::err_drv_invalid_value)
1040 << A->getAsString(Args) << A->getValue();
1042 Opts.DisableFree = Args.hasArg(OPT_disable_free);
1044 Opts.OutputFile = Args.getLastArgValue(OPT_o);
1045 Opts.Plugins = Args.getAllArgValues(OPT_load);
1046 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1047 Opts.ShowHelp = Args.hasArg(OPT_help);
1048 Opts.ShowStats = Args.hasArg(OPT_print_stats);
1049 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1050 Opts.ShowVersion = Args.hasArg(OPT_version);
1051 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1052 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1053 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
1054 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
1055 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
1056 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
1057 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump);
1058 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
1059 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
1060 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
1061 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
1062 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file);
1063 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file);
1064 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ);
1065 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files);
1067 Opts.CodeCompleteOpts.IncludeMacros
1068 = Args.hasArg(OPT_code_completion_macros);
1069 Opts.CodeCompleteOpts.IncludeCodePatterns
1070 = Args.hasArg(OPT_code_completion_patterns);
1071 Opts.CodeCompleteOpts.IncludeGlobals
1072 = !Args.hasArg(OPT_no_code_completion_globals);
1073 Opts.CodeCompleteOpts.IncludeBriefComments
1074 = Args.hasArg(OPT_code_completion_brief_comments);
1076 Opts.OverrideRecordLayoutsFile
1077 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
1079 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple));
1081 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
1083 OPT_arcmt_migrate)) {
1084 switch (A->getOption().getID()) {
1086 llvm_unreachable("missed a case");
1087 case OPT_arcmt_check:
1088 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
1090 case OPT_arcmt_modify:
1091 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
1093 case OPT_arcmt_migrate:
1094 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
1098 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
1099 Opts.ARCMTMigrateReportOut
1100 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
1101 Opts.ARCMTMigrateEmitARCErrors
1102 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
1104 if (Args.hasArg(OPT_objcmt_migrate_literals))
1105 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
1106 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
1107 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
1108 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
1109 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
1110 if (Args.hasArg(OPT_objcmt_migrate_property))
1111 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
1112 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
1113 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
1114 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
1115 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
1116 if (Args.hasArg(OPT_objcmt_migrate_annotation))
1117 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
1118 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
1119 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
1120 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
1121 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
1122 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
1123 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
1124 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
1125 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
1126 if (Args.hasArg(OPT_objcmt_atomic_property))
1127 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
1128 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
1129 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
1130 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
1131 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
1132 if (Args.hasArg(OPT_objcmt_migrate_all))
1133 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
1135 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
1137 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
1138 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
1139 Diags.Report(diag::err_drv_argument_not_allowed_with)
1140 << "ARC migration" << "ObjC migration";
1143 InputKind DashX = IK_None;
1144 if (const Arg *A = Args.getLastArg(OPT_x)) {
1145 DashX = llvm::StringSwitch<InputKind>(A->getValue())
1147 .Case("cl", IK_OpenCL)
1148 .Case("cuda", IK_CUDA)
1149 .Case("c++", IK_CXX)
1150 .Case("objective-c", IK_ObjC)
1151 .Case("objective-c++", IK_ObjCXX)
1152 .Case("cpp-output", IK_PreprocessedC)
1153 .Case("assembler-with-cpp", IK_Asm)
1154 .Case("c++-cpp-output", IK_PreprocessedCXX)
1155 .Case("cuda-cpp-output", IK_PreprocessedCuda)
1156 .Case("objective-c-cpp-output", IK_PreprocessedObjC)
1157 .Case("objc-cpp-output", IK_PreprocessedObjC)
1158 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
1159 .Case("objc++-cpp-output", IK_PreprocessedObjCXX)
1160 .Case("c-header", IK_C)
1161 .Case("cl-header", IK_OpenCL)
1162 .Case("objective-c-header", IK_ObjC)
1163 .Case("c++-header", IK_CXX)
1164 .Case("objective-c++-header", IK_ObjCXX)
1165 .Cases("ast", "pcm", IK_AST)
1166 .Case("ir", IK_LLVM_IR)
1168 if (DashX == IK_None)
1169 Diags.Report(diag::err_drv_invalid_value)
1170 << A->getAsString(Args) << A->getValue();
1173 // '-' is the default input if none is given.
1174 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1175 Opts.Inputs.clear();
1177 Inputs.push_back("-");
1178 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1179 InputKind IK = DashX;
1180 if (IK == IK_None) {
1181 IK = FrontendOptions::getInputKindForExtension(
1182 StringRef(Inputs[i]).rsplit('.').second);
1183 // FIXME: Remove this hack.
1187 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK);
1193 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1195 std::string ClangExecutable =
1196 llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
1197 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable);
1199 // Compute the path to the resource directory.
1200 StringRef ClangResourceDir(CLANG_RESOURCE_DIR);
1201 SmallString<128> P(Dir);
1202 if (ClangResourceDir != "")
1203 llvm::sys::path::append(P, ClangResourceDir);
1205 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX,
1206 "clang", CLANG_VERSION_STRING);
1211 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
1212 using namespace options;
1213 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1214 Opts.Verbose = Args.hasArg(OPT_v);
1215 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1216 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
1217 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1218 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
1219 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
1220 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1221 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path);
1222 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
1223 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
1224 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps);
1225 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd);
1226 Opts.ModuleCachePruneInterval =
1227 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
1228 Opts.ModuleCachePruneAfter =
1229 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
1230 Opts.ModulesValidateOncePerBuildSession =
1231 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
1232 Opts.BuildSessionTimestamp =
1233 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
1234 Opts.ModulesValidateSystemHeaders =
1235 Args.hasArg(OPT_fmodules_validate_system_headers);
1236 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ))
1237 Opts.ModuleFormat = A->getValue();
1239 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) {
1240 StringRef MacroDef = A->getValue();
1241 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first);
1244 // Add -I..., -F..., and -index-header-map options in order.
1245 bool IsIndexHeaderMap = false;
1246 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) {
1247 if (A->getOption().matches(OPT_index_header_map)) {
1248 // -index-header-map applies to the next -I or -F.
1249 IsIndexHeaderMap = true;
1253 frontend::IncludeDirGroup Group =
1254 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled;
1256 Opts.AddPath(A->getValue(), Group,
1257 /*IsFramework=*/A->getOption().matches(OPT_F), true);
1258 IsIndexHeaderMap = false;
1261 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
1262 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
1264 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) {
1265 if (A->getOption().matches(OPT_iprefix))
1266 Prefix = A->getValue();
1267 else if (A->getOption().matches(OPT_iwithprefix))
1268 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true);
1270 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true);
1273 for (const Arg *A : Args.filtered(OPT_idirafter))
1274 Opts.AddPath(A->getValue(), frontend::After, false, true);
1275 for (const Arg *A : Args.filtered(OPT_iquote))
1276 Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
1277 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
1278 Opts.AddPath(A->getValue(), frontend::System, false,
1279 !A->getOption().matches(OPT_iwithsysroot));
1280 for (const Arg *A : Args.filtered(OPT_iframework))
1281 Opts.AddPath(A->getValue(), frontend::System, true, true);
1283 // Add the paths for the various language specific isystem flags.
1284 for (const Arg *A : Args.filtered(OPT_c_isystem))
1285 Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
1286 for (const Arg *A : Args.filtered(OPT_cxx_isystem))
1287 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
1288 for (const Arg *A : Args.filtered(OPT_objc_isystem))
1289 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
1290 for (const Arg *A : Args.filtered(OPT_objcxx_isystem))
1291 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
1293 // Add the internal paths from a driver that detects standard include paths.
1295 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) {
1296 frontend::IncludeDirGroup Group = frontend::System;
1297 if (A->getOption().matches(OPT_internal_externc_isystem))
1298 Group = frontend::ExternCSystem;
1299 Opts.AddPath(A->getValue(), Group, false, true);
1302 // Add the path prefixes which are implicitly treated as being system headers.
1304 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix))
1305 Opts.AddSystemHeaderPrefix(
1306 A->getValue(), A->getOption().matches(OPT_system_header_prefix));
1308 for (const Arg *A : Args.filtered(OPT_ivfsoverlay))
1309 Opts.AddVFSOverlayFile(A->getValue());
1312 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
1313 LangStandard::Kind LangStd) {
1314 // Set some properties which depend solely on the input kind; it would be nice
1315 // to move these to the language standard, and have the driver resolve the
1316 // input kind + language standard.
1318 Opts.AsmPreprocessor = 1;
1319 } else if (IK == IK_ObjC ||
1321 IK == IK_PreprocessedObjC ||
1322 IK == IK_PreprocessedObjCXX) {
1323 Opts.ObjC1 = Opts.ObjC2 = 1;
1326 if (LangStd == LangStandard::lang_unspecified) {
1327 // Based on the base language, pick one.
1332 llvm_unreachable("Invalid input kind!");
1334 LangStd = LangStandard::lang_opencl;
1337 case IK_PreprocessedCuda:
1338 LangStd = LangStandard::lang_cuda;
1342 case IK_PreprocessedC:
1344 case IK_PreprocessedObjC:
1345 LangStd = LangStandard::lang_gnu11;
1348 case IK_PreprocessedCXX:
1350 case IK_PreprocessedObjCXX:
1351 LangStd = LangStandard::lang_gnucxx98;
1356 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1357 Opts.LineComment = Std.hasLineComments();
1358 Opts.C99 = Std.isC99();
1359 Opts.C11 = Std.isC11();
1360 Opts.CPlusPlus = Std.isCPlusPlus();
1361 Opts.CPlusPlus11 = Std.isCPlusPlus11();
1362 Opts.CPlusPlus14 = Std.isCPlusPlus14();
1363 Opts.CPlusPlus1z = Std.isCPlusPlus1z();
1364 Opts.Digraphs = Std.hasDigraphs();
1365 Opts.GNUMode = Std.isGNUMode();
1366 Opts.GNUInline = Std.isC89();
1367 Opts.HexFloats = Std.hasHexFloats();
1368 Opts.ImplicitInt = Std.hasImplicitInt();
1370 // Set OpenCL Version.
1371 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL;
1372 if (LangStd == LangStandard::lang_opencl)
1373 Opts.OpenCLVersion = 100;
1374 else if (LangStd == LangStandard::lang_opencl11)
1375 Opts.OpenCLVersion = 110;
1376 else if (LangStd == LangStandard::lang_opencl12)
1377 Opts.OpenCLVersion = 120;
1378 else if (LangStd == LangStandard::lang_opencl20)
1379 Opts.OpenCLVersion = 200;
1381 // OpenCL has some additional defaults.
1385 Opts.CXXOperatorNames = 1;
1386 Opts.LaxVectorConversions = 0;
1387 Opts.DefaultFPContract = 1;
1388 Opts.NativeHalfType = 1;
1391 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda ||
1392 LangStd == LangStandard::lang_cuda;
1394 // OpenCL and C++ both have bool, true, false keywords.
1395 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1397 // OpenCL has half keyword
1398 Opts.Half = Opts.OpenCL;
1400 // C++ has wchar_t keyword.
1401 Opts.WChar = Opts.CPlusPlus;
1403 Opts.GNUKeywords = Opts.GNUMode;
1404 Opts.CXXOperatorNames = Opts.CPlusPlus;
1406 Opts.DollarIdents = !Opts.AsmPreprocessor;
1409 /// Attempt to parse a visibility value out of the given argument.
1410 static Visibility parseVisibility(Arg *arg, ArgList &args,
1411 DiagnosticsEngine &diags) {
1412 StringRef value = arg->getValue();
1413 if (value == "default") {
1414 return DefaultVisibility;
1415 } else if (value == "hidden" || value == "internal") {
1416 return HiddenVisibility;
1417 } else if (value == "protected") {
1418 // FIXME: diagnose if target does not support protected visibility
1419 return ProtectedVisibility;
1422 diags.Report(diag::err_drv_invalid_value)
1423 << arg->getAsString(args) << value;
1424 return DefaultVisibility;
1427 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
1428 DiagnosticsEngine &Diags) {
1429 // FIXME: Cleanup per-file based stuff.
1430 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1431 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
1432 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1433 #define LANGSTANDARD(id, name, desc, features) \
1434 .Case(name, LangStandard::lang_##id)
1435 #include "clang/Frontend/LangStandards.def"
1436 .Default(LangStandard::lang_unspecified);
1437 if (LangStd == LangStandard::lang_unspecified)
1438 Diags.Report(diag::err_drv_invalid_value)
1439 << A->getAsString(Args) << A->getValue();
1441 // Valid standard, check to make sure language and standard are
1443 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1447 case IK_PreprocessedC:
1448 case IK_PreprocessedObjC:
1449 if (!(Std.isC89() || Std.isC99()))
1450 Diags.Report(diag::err_drv_argument_not_allowed_with)
1451 << A->getAsString(Args) << "C/ObjC";
1455 case IK_PreprocessedCXX:
1456 case IK_PreprocessedObjCXX:
1457 if (!Std.isCPlusPlus())
1458 Diags.Report(diag::err_drv_argument_not_allowed_with)
1459 << A->getAsString(Args) << "C++/ObjC++";
1463 Diags.Report(diag::err_drv_argument_not_allowed_with)
1464 << A->getAsString(Args) << "OpenCL";
1467 case IK_PreprocessedCuda:
1468 if (!Std.isCPlusPlus())
1469 Diags.Report(diag::err_drv_argument_not_allowed_with)
1470 << A->getAsString(Args) << "CUDA";
1478 // -cl-std only applies for OpenCL language standards.
1479 // Override the -std option in this case.
1480 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
1481 LangStandard::Kind OpenCLLangStd
1482 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1483 .Case("CL", LangStandard::lang_opencl)
1484 .Case("CL1.1", LangStandard::lang_opencl11)
1485 .Case("CL1.2", LangStandard::lang_opencl12)
1486 .Case("CL2.0", LangStandard::lang_opencl20)
1487 .Default(LangStandard::lang_unspecified);
1489 if (OpenCLLangStd == LangStandard::lang_unspecified) {
1490 Diags.Report(diag::err_drv_invalid_value)
1491 << A->getAsString(Args) << A->getValue();
1494 LangStd = OpenCLLangStd;
1497 CompilerInvocation::setLangDefaults(Opts, IK, LangStd);
1499 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1500 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1501 // while a subset (the non-C++ GNU keywords) is provided by GCC's
1502 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1503 // name, as it doesn't seem a useful distinction.
1504 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
1507 if (Args.hasArg(OPT_fno_operator_names))
1508 Opts.CXXOperatorNames = 0;
1510 if (Args.hasArg(OPT_fcuda_is_device))
1511 Opts.CUDAIsDevice = 1;
1513 if (Args.hasArg(OPT_fcuda_allow_host_calls_from_host_device))
1514 Opts.CUDAAllowHostCallsFromHostDevice = 1;
1516 if (Args.hasArg(OPT_fcuda_disable_target_call_checks))
1517 Opts.CUDADisableTargetCallChecks = 1;
1519 if (Args.hasArg(OPT_fcuda_target_overloads))
1520 Opts.CUDATargetOverloads = 1;
1523 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
1524 StringRef value = arg->getValue();
1525 if (Opts.ObjCRuntime.tryParse(value))
1526 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
1529 if (Args.hasArg(OPT_fobjc_gc_only))
1530 Opts.setGC(LangOptions::GCOnly);
1531 else if (Args.hasArg(OPT_fobjc_gc))
1532 Opts.setGC(LangOptions::HybridGC);
1533 else if (Args.hasArg(OPT_fobjc_arc)) {
1534 Opts.ObjCAutoRefCount = 1;
1535 if (!Opts.ObjCRuntime.allowsARC())
1536 Diags.Report(diag::err_arc_unsupported_on_runtime);
1539 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
1540 // whether the feature is actually enabled. This is predominantly
1541 // determined by -fobjc-runtime, but we allow it to be overridden
1542 // from the command line for testing purposes.
1543 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
1544 Opts.ObjCWeakRuntime = 1;
1546 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
1548 // ObjCWeak determines whether __weak is actually enabled.
1549 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
1550 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) {
1551 if (!weakArg->getOption().matches(OPT_fobjc_weak)) {
1552 assert(!Opts.ObjCWeak);
1553 } else if (Opts.getGC() != LangOptions::NonGC) {
1554 Diags.Report(diag::err_objc_weak_with_gc);
1555 } else if (!Opts.ObjCWeakRuntime) {
1556 Diags.Report(diag::err_objc_weak_unsupported);
1560 } else if (Opts.ObjCAutoRefCount) {
1561 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
1564 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
1565 Opts.ObjCInferRelatedResultType = 0;
1567 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
1568 Opts.ObjCSubscriptingLegacyRuntime =
1569 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
1572 if (Args.hasArg(OPT_fgnu89_inline)) {
1574 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline"
1580 if (Args.hasArg(OPT_fapple_kext)) {
1581 if (!Opts.CPlusPlus)
1582 Diags.Report(diag::warn_c_kext);
1587 if (Args.hasArg(OPT_print_ivar_layout))
1588 Opts.ObjCGCBitmapPrint = 1;
1589 if (Args.hasArg(OPT_fno_constant_cfstrings))
1590 Opts.NoConstantCFStrings = 1;
1592 if (Args.hasArg(OPT_faltivec))
1595 if (Args.hasArg(OPT_fzvector))
1598 if (Args.hasArg(OPT_pthread))
1599 Opts.POSIXThreads = 1;
1601 // The value-visibility mode defaults to "default".
1602 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
1603 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
1605 Opts.setValueVisibilityMode(DefaultVisibility);
1608 // The type-visibility mode defaults to the value-visibility mode.
1609 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
1610 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
1612 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
1615 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
1616 Opts.InlineVisibilityHidden = 1;
1618 if (Args.hasArg(OPT_ftrapv)) {
1619 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
1620 // Set the handler, if one is specified.
1621 Opts.OverflowHandler =
1622 Args.getLastArgValue(OPT_ftrapv_handler);
1624 else if (Args.hasArg(OPT_fwrapv))
1625 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
1627 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
1628 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
1629 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
1630 Opts.MSCompatibilityVersion = 0;
1631 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) {
1633 if (VT.tryParse(A->getValue()))
1634 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
1636 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
1637 VT.getMinor().getValueOr(0) * 100000 +
1638 VT.getSubminor().getValueOr(0);
1641 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1642 // is specified, or -std is set to a conforming mode.
1643 // Trigraphs are disabled by default in c++1z onwards.
1644 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z;
1646 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs);
1648 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
1649 OPT_fno_dollars_in_identifiers,
1651 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
1652 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags);
1653 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
1654 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
1655 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
1657 if (Args.hasArg(OPT_fno_lax_vector_conversions))
1658 Opts.LaxVectorConversions = 0;
1659 if (Args.hasArg(OPT_fno_threadsafe_statics))
1660 Opts.ThreadsafeStatics = 0;
1661 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
1662 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
1663 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
1664 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
1665 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
1667 Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
1668 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
1669 Opts.Blocks = Args.hasArg(OPT_fblocks);
1670 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
1671 Opts.Coroutines = Args.hasArg(OPT_fcoroutines);
1672 Opts.Modules = Args.hasArg(OPT_fmodules);
1673 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse);
1674 Opts.ModulesDeclUse =
1675 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
1676 Opts.ModulesLocalVisibility =
1677 Args.hasArg(OPT_fmodules_local_submodule_visibility);
1678 Opts.ModulesSearchAll = Opts.Modules &&
1679 !Args.hasArg(OPT_fno_modules_search_all) &&
1680 Args.hasArg(OPT_fmodules_search_all);
1681 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
1682 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules);
1683 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
1684 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
1685 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false);
1686 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
1687 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
1688 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
1689 if (!Opts.NoBuiltin)
1690 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
1691 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
1692 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
1693 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation);
1694 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts);
1695 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
1696 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
1697 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
1698 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
1699 Opts.InstantiationDepth =
1700 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags);
1702 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
1703 Opts.ConstexprCallDepth =
1704 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
1705 Opts.ConstexprStepLimit =
1706 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
1707 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
1708 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
1709 Opts.NumLargeByValueCopy =
1710 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
1711 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
1712 Opts.ObjCConstantStringClass =
1713 Args.getLastArgValue(OPT_fconstant_string_class);
1714 Opts.ObjCDefaultSynthProperties =
1715 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
1716 Opts.EncodeExtendedBlockSig =
1717 Args.hasArg(OPT_fencode_extended_block_signature);
1718 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
1719 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
1720 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags);
1721 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
1722 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags);
1723 Opts.Static = Args.hasArg(OPT_static_define);
1724 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
1725 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
1726 || Args.hasArg(OPT_fdump_record_layouts);
1727 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
1728 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
1729 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
1730 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
1731 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
1732 Opts.MRTD = Args.hasArg(OPT_mrtd);
1733 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
1734 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
1735 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
1736 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
1737 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
1738 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
1739 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
1740 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name);
1741 Opts.AppExt = Args.hasArg(OPT_fapplication_extension);
1742 Opts.ImplementationOfModule =
1743 Args.getLastArgValue(OPT_fmodule_implementation_of);
1744 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature);
1745 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end());
1746 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type);
1747 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns);
1748 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm);
1750 // __declspec is enabled by default for the PS4 by the driver, and also
1751 // enabled for Microsoft Extensions or Borland Extensions, here.
1753 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a
1754 // CUDA extension, however it is required for supporting cuda_builtin_vars.h,
1755 // which uses __declspec(property). Once that has been rewritten in terms of
1756 // something more generic, remove the Opts.CUDA term here.
1757 Opts.DeclSpecKeyword =
1758 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec,
1759 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA));
1761 if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() &&
1762 Opts.CurrentModule != Opts.ImplementationOfModule) {
1763 Diags.Report(diag::err_conflicting_module_names)
1764 << Opts.CurrentModule << Opts.ImplementationOfModule;
1767 // For now, we only support local submodule visibility in C++ (because we
1768 // heavily depend on the ODR for merging redefinitions).
1769 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus)
1770 Diags.Report(diag::err_drv_argument_not_allowed_with)
1771 << "-fmodules-local-submodule-visibility" << "C";
1773 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
1774 switch (llvm::StringSwitch<unsigned>(A->getValue())
1775 .Case("target", LangOptions::ASMM_Target)
1776 .Case("no", LangOptions::ASMM_Off)
1777 .Case("yes", LangOptions::ASMM_On)
1780 Diags.Report(diag::err_drv_invalid_value)
1781 << "-faddress-space-map-mangling=" << A->getValue();
1783 case LangOptions::ASMM_Target:
1784 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
1786 case LangOptions::ASMM_On:
1787 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
1789 case LangOptions::ASMM_Off:
1790 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
1795 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
1796 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
1797 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
1800 LangOptions::PPTMK_FullGeneralitySingleInheritance)
1802 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
1804 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
1805 .Default(LangOptions::PPTMK_BestCase);
1806 if (InheritanceModel == LangOptions::PPTMK_BestCase)
1807 Diags.Report(diag::err_drv_invalid_value)
1808 << "-fms-memptr-rep=" << A->getValue();
1810 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
1813 // Check if -fopenmp is specified.
1814 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp);
1816 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls);
1817 Opts.OpenMPIsDevice =
1818 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device);
1820 // Get the OpenMP target triples if any.
1821 if (Arg *A = Args.getLastArg(options::OPT_omptargets_EQ)) {
1823 for (unsigned i = 0; i < A->getNumValues(); ++i) {
1824 llvm::Triple TT(A->getValue(i));
1826 if (TT.getArch() == llvm::Triple::UnknownArch)
1827 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i);
1829 Opts.OMPTargetTriples.push_back(TT);
1833 // Get OpenMP host file path if any and report if a non existent file is
1835 if (Arg *A = Args.getLastArg(options::OPT_omp_host_ir_file_path)) {
1836 Opts.OMPHostIRFile = A->getValue();
1837 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile))
1838 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found)
1839 << Opts.OMPHostIRFile;
1842 // Record whether the __DEPRECATED define was requested.
1843 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
1844 OPT_fno_deprecated_macro,
1847 // FIXME: Eliminate this dependency.
1848 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
1849 OptSize = getOptimizationLevelSize(Args);
1850 Opts.Optimize = Opt != 0;
1851 Opts.OptimizeSize = OptSize != 0;
1853 // This is the __NO_INLINE__ define, which just depends on things like the
1854 // optimization level and -fno-inline, not actually whether the backend has
1855 // inlining enabled.
1856 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline);
1858 Opts.FastMath = Args.hasArg(OPT_ffast_math) ||
1859 Args.hasArg(OPT_cl_fast_relaxed_math);
1860 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) ||
1861 Args.hasArg(OPT_cl_finite_math_only) ||
1862 Args.hasArg(OPT_cl_fast_relaxed_math);
1863 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
1864 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
1865 Args.hasArg(OPT_cl_fast_relaxed_math);
1867 Opts.RetainCommentsFromSystemHeaders =
1868 Args.hasArg(OPT_fretain_comments_from_system_headers);
1870 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
1873 Diags.Report(diag::err_drv_invalid_value)
1874 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
1876 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
1877 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
1878 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
1879 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
1882 // Parse -fsanitize= arguments.
1883 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
1884 Diags, Opts.Sanitize);
1885 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here.
1886 Opts.SanitizeAddressFieldPadding =
1887 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags);
1888 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist);
1891 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
1892 FileManager &FileMgr,
1893 DiagnosticsEngine &Diags) {
1894 using namespace options;
1895 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
1896 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
1897 if (const Arg *A = Args.getLastArg(OPT_token_cache))
1898 Opts.TokenCache = A->getValue();
1900 Opts.TokenCache = Opts.ImplicitPTHInclude;
1901 Opts.UsePredefines = !Args.hasArg(OPT_undef);
1902 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
1903 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
1905 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
1906 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl))
1907 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
1909 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
1910 StringRef Value(A->getValue());
1911 size_t Comma = Value.find(',');
1913 unsigned EndOfLine = 0;
1915 if (Comma == StringRef::npos ||
1916 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
1917 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
1918 Diags.Report(diag::err_drv_preamble_format);
1920 Opts.PrecompiledPreambleBytes.first = Bytes;
1921 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
1925 // Add macros from the command line.
1926 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) {
1927 if (A->getOption().matches(OPT_D))
1928 Opts.addMacroDef(A->getValue());
1930 Opts.addMacroUndef(A->getValue());
1933 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
1935 // Add the ordered list of -includes.
1936 for (const Arg *A : Args.filtered(OPT_include))
1937 Opts.Includes.emplace_back(A->getValue());
1939 for (const Arg *A : Args.filtered(OPT_chain_include))
1940 Opts.ChainedIncludes.emplace_back(A->getValue());
1942 // Include 'altivec.h' if -faltivec option present
1943 if (Args.hasArg(OPT_faltivec))
1944 Opts.Includes.emplace_back("altivec.h");
1946 for (const Arg *A : Args.filtered(OPT_remap_file)) {
1947 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
1949 if (Split.second.empty()) {
1950 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
1954 Opts.addRemappedFile(Split.first, Split.second);
1957 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
1958 StringRef Name = A->getValue();
1959 unsigned Library = llvm::StringSwitch<unsigned>(Name)
1960 .Case("libc++", ARCXX_libcxx)
1961 .Case("libstdc++", ARCXX_libstdcxx)
1962 .Case("none", ARCXX_nolib)
1965 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1967 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
1971 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
1973 frontend::ActionKind Action) {
1974 using namespace options;
1977 case frontend::ASTDeclList:
1978 case frontend::ASTDump:
1979 case frontend::ASTPrint:
1980 case frontend::ASTView:
1981 case frontend::EmitAssembly:
1982 case frontend::EmitBC:
1983 case frontend::EmitHTML:
1984 case frontend::EmitLLVM:
1985 case frontend::EmitLLVMOnly:
1986 case frontend::EmitCodeGenOnly:
1987 case frontend::EmitObj:
1988 case frontend::FixIt:
1989 case frontend::GenerateModule:
1990 case frontend::GeneratePCH:
1991 case frontend::GeneratePTH:
1992 case frontend::ParseSyntaxOnly:
1993 case frontend::ModuleFileInfo:
1994 case frontend::VerifyPCH:
1995 case frontend::PluginAction:
1996 case frontend::PrintDeclContext:
1997 case frontend::RewriteObjC:
1998 case frontend::RewriteTest:
1999 case frontend::RunAnalysis:
2000 case frontend::MigrateSource:
2004 case frontend::DumpRawTokens:
2005 case frontend::DumpTokens:
2006 case frontend::InitOnly:
2007 case frontend::PrintPreamble:
2008 case frontend::PrintPreprocessedInput:
2009 case frontend::RewriteMacros:
2010 case frontend::RunPreprocessorOnly:
2011 Opts.ShowCPP = !Args.hasArg(OPT_dM);
2015 Opts.ShowComments = Args.hasArg(OPT_C);
2016 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
2017 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
2018 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
2019 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
2020 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives);
2023 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
2024 using namespace options;
2025 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
2026 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
2027 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
2028 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
2029 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
2030 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
2031 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ);
2032 // Use the default target triple if unspecified.
2033 if (Opts.Triple.empty())
2034 Opts.Triple = llvm::sys::getDefaultTargetTriple();
2037 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
2038 const char *const *ArgBegin,
2039 const char *const *ArgEnd,
2040 DiagnosticsEngine &Diags) {
2041 bool Success = true;
2043 // Parse the arguments.
2044 std::unique_ptr<OptTable> Opts(createDriverOptTable());
2045 const unsigned IncludedFlagsBitmask = options::CC1Option;
2046 unsigned MissingArgIndex, MissingArgCount;
2048 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex,
2049 MissingArgCount, IncludedFlagsBitmask);
2051 // Check for missing argument error.
2052 if (MissingArgCount) {
2053 Diags.Report(diag::err_drv_missing_argument)
2054 << Args.getArgString(MissingArgIndex) << MissingArgCount;
2058 // Issue errors on unknown arguments.
2059 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) {
2060 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args);
2064 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
2065 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args);
2066 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args);
2067 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags);
2068 ParseCommentArgs(Res.getLangOpts()->CommentOpts, Args);
2069 ParseFileSystemArgs(Res.getFileSystemOpts(), Args);
2070 // FIXME: We shouldn't have to pass the DashX option around here
2071 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags);
2072 ParseTargetArgs(Res.getTargetOpts(), Args);
2073 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
2074 Res.getTargetOpts());
2075 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args);
2076 if (DashX == IK_AST || DashX == IK_LLVM_IR) {
2077 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
2078 // PassManager in BackendUtil.cpp. They need to be initializd no matter
2079 // what the input type is.
2080 if (Args.hasArg(OPT_fobjc_arc))
2081 Res.getLangOpts()->ObjCAutoRefCount = 1;
2082 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
2083 Diags, Res.getLangOpts()->Sanitize);
2085 // Other LangOpts are only initialzed when the input is not AST or LLVM IR.
2086 ParseLangArgs(*Res.getLangOpts(), Args, DashX, Diags);
2087 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
2088 Res.getLangOpts()->ObjCExceptions = 1;
2090 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of
2091 // PCH file and find the original header name. Remove the need to do that in
2092 // ParsePreprocessorArgs and remove the FileManager
2093 // parameters from the function and the "FileManager.h" #include.
2094 FileManager FileMgr(Res.getFileSystemOpts());
2095 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags);
2096 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args,
2097 Res.getFrontendOpts().ProgramAction);
2103 class ModuleSignature {
2104 SmallVector<uint64_t, 16> Data;
2109 ModuleSignature() : CurBit(0), CurValue(0) { }
2111 void add(uint64_t Value, unsigned Bits);
2112 void add(StringRef Value);
2115 llvm::APInt getAsInteger() const;
2119 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) {
2120 CurValue |= Value << CurBit;
2121 if (CurBit + NumBits < 64) {
2126 // Add the current word.
2127 Data.push_back(CurValue);
2130 CurValue = Value >> (64-CurBit);
2133 CurBit = (CurBit+NumBits) & 63;
2136 void ModuleSignature::flush() {
2140 Data.push_back(CurValue);
2145 void ModuleSignature::add(StringRef Value) {
2146 for (auto &c : Value)
2150 llvm::APInt ModuleSignature::getAsInteger() const {
2151 return llvm::APInt(Data.size() * 64, Data);
2154 std::string CompilerInvocation::getModuleHash() const {
2155 // Note: For QoI reasons, the things we use as a hash here should all be
2156 // dumped via the -module-info flag.
2157 using llvm::hash_code;
2158 using llvm::hash_value;
2159 using llvm::hash_combine;
2161 // Start the signature with the compiler version.
2162 // FIXME: We'd rather use something more cryptographically sound than
2163 // CityHash, but this will do for now.
2164 hash_code code = hash_value(getClangFullRepositoryVersion());
2166 // Extend the signature with the language options
2167 #define LANGOPT(Name, Bits, Default, Description) \
2168 code = hash_combine(code, LangOpts->Name);
2169 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
2170 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
2171 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
2172 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
2173 #include "clang/Basic/LangOptions.def"
2175 for (StringRef Feature : LangOpts->ModuleFeatures)
2176 code = hash_combine(code, Feature);
2178 // Extend the signature with the target options.
2179 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
2181 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i)
2182 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]);
2184 // Extend the signature with preprocessor options.
2185 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
2186 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
2187 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
2189 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator
2190 I = getPreprocessorOpts().Macros.begin(),
2191 IEnd = getPreprocessorOpts().Macros.end();
2193 // If we're supposed to ignore this macro for the purposes of modules,
2194 // don't put it into the hash.
2195 if (!hsOpts.ModulesIgnoreMacros.empty()) {
2196 // Check whether we're ignoring this macro.
2197 StringRef MacroDef = I->first;
2198 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first))
2202 code = hash_combine(code, I->first, I->second);
2205 // Extend the signature with the sysroot and other header search options.
2206 code = hash_combine(code, hsOpts.Sysroot,
2207 hsOpts.ModuleFormat,
2208 hsOpts.UseDebugInfo,
2209 hsOpts.UseBuiltinIncludes,
2210 hsOpts.UseStandardSystemIncludes,
2211 hsOpts.UseStandardCXXIncludes,
2213 code = hash_combine(code, hsOpts.ResourceDir);
2215 // Extend the signature with the user build path.
2216 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
2218 // Extend the signature with the module file extensions.
2219 const FrontendOptions &frontendOpts = getFrontendOpts();
2220 for (auto ext : frontendOpts.ModuleFileExtensions) {
2221 code = ext->hashExtension(code);
2224 // Darwin-specific hack: if we have a sysroot, use the contents and
2225 // modification time of
2226 // $sysroot/System/Library/CoreServices/SystemVersion.plist
2227 // as part of the module hash.
2228 if (!hsOpts.Sysroot.empty()) {
2229 SmallString<128> systemVersionFile;
2230 systemVersionFile += hsOpts.Sysroot;
2231 llvm::sys::path::append(systemVersionFile, "System");
2232 llvm::sys::path::append(systemVersionFile, "Library");
2233 llvm::sys::path::append(systemVersionFile, "CoreServices");
2234 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist");
2236 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer =
2237 llvm::MemoryBuffer::getFile(systemVersionFile);
2239 code = hash_combine(code, buffer.get()->getBuffer());
2241 struct stat statBuf;
2242 if (stat(systemVersionFile.c_str(), &statBuf) == 0)
2243 code = hash_combine(code, statBuf.st_mtime);
2247 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
2252 template<typename IntTy>
2253 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
2255 DiagnosticsEngine *Diags) {
2256 IntTy Res = Default;
2257 if (Arg *A = Args.getLastArg(Id)) {
2258 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
2260 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)
2268 // Declared in clang/Frontend/Utils.h.
2269 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
2270 DiagnosticsEngine *Diags) {
2271 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags);
2274 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
2276 DiagnosticsEngine *Diags) {
2277 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags);
2280 void BuryPointer(const void *Ptr) {
2281 // This function may be called only a small fixed amount of times per each
2282 // invocation, otherwise we do actually have a leak which we want to report.
2283 // If this function is called more than kGraveYardMaxSize times, the pointers
2284 // will not be properly buried and a leak detector will report a leak, which
2285 // is what we want in such case.
2286 static const size_t kGraveYardMaxSize = 16;
2287 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize];
2288 static std::atomic<unsigned> GraveYardSize;
2289 unsigned Idx = GraveYardSize++;
2290 if (Idx >= kGraveYardMaxSize)
2292 GraveYard[Idx] = Ptr;
2295 IntrusiveRefCntPtr<vfs::FileSystem>
2296 createVFSFromCompilerInvocation(const CompilerInvocation &CI,
2297 DiagnosticsEngine &Diags) {
2298 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
2299 return vfs::getRealFileSystem();
2301 IntrusiveRefCntPtr<vfs::OverlayFileSystem>
2302 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem()));
2303 // earlier vfs files are on the bottom
2304 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
2305 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
2306 llvm::MemoryBuffer::getFile(File);
2308 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
2309 return IntrusiveRefCntPtr<vfs::FileSystem>();
2312 IntrusiveRefCntPtr<vfs::FileSystem> FS =
2313 vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/ nullptr);
2315 Diags.Report(diag::err_invalid_vfs_overlay) << File;
2316 return IntrusiveRefCntPtr<vfs::FileSystem>();
2318 Overlay->pushOverlay(FS);
2322 } // end namespace clang