1 //===--- CompilerInvocation.cpp -------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "clang/Frontend/CompilerInvocation.h"
11 #include "clang/Basic/Diagnostic.h"
12 #include "clang/Basic/FileManager.h"
13 #include "clang/Basic/Version.h"
14 #include "clang/Driver/DriverDiagnostic.h"
15 #include "clang/Driver/Options.h"
16 #include "clang/Driver/Util.h"
17 #include "clang/Frontend/LangStandard.h"
18 #include "clang/Frontend/Utils.h"
19 #include "clang/Lex/HeaderSearchOptions.h"
20 #include "clang/Serialization/ASTReader.h"
21 #include "llvm/ADT/Hashing.h"
22 #include "llvm/ADT/OwningPtr.h"
23 #include "llvm/ADT/SmallVector.h"
24 #include "llvm/ADT/StringExtras.h"
25 #include "llvm/ADT/StringSwitch.h"
26 #include "llvm/ADT/Triple.h"
27 #include "llvm/Option/Arg.h"
28 #include "llvm/Option/ArgList.h"
29 #include "llvm/Option/OptTable.h"
30 #include "llvm/Option/Option.h"
31 #include "llvm/Support/ErrorHandling.h"
32 #include "llvm/Support/FileSystem.h"
33 #include "llvm/Support/Host.h"
34 #include "llvm/Support/Path.h"
35 #include "llvm/Support/Process.h"
36 #include "llvm/Support/system_error.h"
38 using namespace clang;
40 //===----------------------------------------------------------------------===//
42 //===----------------------------------------------------------------------===//
44 CompilerInvocationBase::CompilerInvocationBase()
45 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
46 DiagnosticOpts(new DiagnosticOptions()),
47 HeaderSearchOpts(new HeaderSearchOptions()),
48 PreprocessorOpts(new PreprocessorOptions()) {}
50 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X)
51 : RefCountedBase<CompilerInvocation>(),
52 LangOpts(new LangOptions(*X.getLangOpts())),
53 TargetOpts(new TargetOptions(X.getTargetOpts())),
54 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
55 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
56 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {}
58 //===----------------------------------------------------------------------===//
59 // Deserialization (from args)
60 //===----------------------------------------------------------------------===//
62 using namespace clang::driver;
63 using namespace clang::driver::options;
64 using namespace llvm::opt;
68 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
69 DiagnosticsEngine &Diags) {
70 unsigned DefaultOpt = 0;
71 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable))
74 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
75 if (A->getOption().matches(options::OPT_O0))
78 if (A->getOption().matches(options::OPT_Ofast))
81 assert (A->getOption().matches(options::OPT_O));
83 StringRef S(A->getValue());
84 if (S == "s" || S == "z" || S.empty())
87 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags);
93 static unsigned getOptimizationLevelSize(ArgList &Args) {
94 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
95 if (A->getOption().matches(options::OPT_O)) {
96 switch (A->getValue()[0]) {
109 static void addWarningArgs(ArgList &Args, std::vector<std::string> &Warnings) {
110 for (arg_iterator I = Args.filtered_begin(OPT_W_Group),
111 E = Args.filtered_end(); I != E; ++I) {
113 // If the argument is a pure flag, add its name (minus the "W" at the beginning)
114 // to the warning list. Else, add its value (for the OPT_W case).
115 if (A->getOption().getKind() == Option::FlagClass) {
116 Warnings.push_back(A->getOption().getName().substr(1));
118 for (unsigned Idx = 0, End = A->getNumValues();
120 StringRef V = A->getValue(Idx);
121 // "-Wl," and such are not warning options.
122 // FIXME: Should be handled by putting these in separate flags.
123 if (V.startswith("l,") || V.startswith("a,") || V.startswith("p,"))
126 Warnings.push_back(V);
132 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
133 DiagnosticsEngine &Diags) {
134 using namespace options;
136 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
137 StringRef Name = A->getValue();
138 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
139 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
140 .Case(CMDFLAG, NAME##Model)
141 #include "clang/StaticAnalyzer/Core/Analyses.def"
143 if (Value == NumStores) {
144 Diags.Report(diag::err_drv_invalid_value)
145 << A->getAsString(Args) << Name;
148 Opts.AnalysisStoreOpt = Value;
152 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
153 StringRef Name = A->getValue();
154 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
155 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
156 .Case(CMDFLAG, NAME##Model)
157 #include "clang/StaticAnalyzer/Core/Analyses.def"
158 .Default(NumConstraints);
159 if (Value == NumConstraints) {
160 Diags.Report(diag::err_drv_invalid_value)
161 << A->getAsString(Args) << Name;
164 Opts.AnalysisConstraintsOpt = Value;
168 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
169 StringRef Name = A->getValue();
170 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
171 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
172 .Case(CMDFLAG, PD_##NAME)
173 #include "clang/StaticAnalyzer/Core/Analyses.def"
174 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
175 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
176 Diags.Report(diag::err_drv_invalid_value)
177 << A->getAsString(Args) << Name;
180 Opts.AnalysisDiagOpt = Value;
184 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
185 StringRef Name = A->getValue();
186 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
187 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
189 #include "clang/StaticAnalyzer/Core/Analyses.def"
190 .Default(NumPurgeModes);
191 if (Value == NumPurgeModes) {
192 Diags.Report(diag::err_drv_invalid_value)
193 << A->getAsString(Args) << Name;
196 Opts.AnalysisPurgeOpt = Value;
200 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
201 StringRef Name = A->getValue();
202 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
203 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
205 #include "clang/StaticAnalyzer/Core/Analyses.def"
206 .Default(NumInliningModes);
207 if (Value == NumInliningModes) {
208 Diags.Report(diag::err_drv_invalid_value)
209 << A->getAsString(Args) << Name;
212 Opts.InliningMode = Value;
216 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
217 Opts.visualizeExplodedGraphWithGraphViz =
218 Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
219 Opts.visualizeExplodedGraphWithUbiGraph =
220 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
221 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
222 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
223 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
224 Opts.AnalyzeNestedBlocks =
225 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
226 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume);
227 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
228 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
229 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
230 Opts.maxBlockVisitOnPath =
231 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags);
232 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
233 Opts.InlineMaxStackDepth =
234 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth,
235 Opts.InlineMaxStackDepth, Diags);
237 Opts.CheckersControlList.clear();
238 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker,
239 OPT_analyzer_disable_checker),
240 ie = Args.filtered_end(); it != ie; ++it) {
243 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
244 // We can have a list of comma separated checker names, e.g:
245 // '-analyzer-checker=cocoa,unix'
246 StringRef checkerList = A->getValue();
247 SmallVector<StringRef, 4> checkers;
248 checkerList.split(checkers, ",");
249 for (unsigned i = 0, e = checkers.size(); i != e; ++i)
250 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable));
253 // Go through the analyzer configuration options.
254 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_config),
255 ie = Args.filtered_end(); it != ie; ++it) {
258 // We can have a list of comma separated config names, e.g:
259 // '-analyzer-config key1=val1,key2=val2'
260 StringRef configList = A->getValue();
261 SmallVector<StringRef, 4> configVals;
262 configList.split(configVals, ",");
263 for (unsigned i = 0, e = configVals.size(); i != e; ++i) {
265 llvm::tie(key, val) = configVals[i].split("=");
267 Diags.Report(SourceLocation(),
268 diag::err_analyzer_config_no_value) << configVals[i];
272 if (val.find('=') != StringRef::npos) {
273 Diags.Report(SourceLocation(),
274 diag::err_analyzer_config_multiple_values)
279 Opts.Config[key] = val;
286 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
287 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
288 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
292 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
293 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
294 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
297 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
298 DiagnosticsEngine &Diags,
299 const TargetOptions &TargetOpts) {
300 using namespace options;
303 Opts.OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
304 // TODO: This could be done in Driver
305 unsigned MaxOptLevel = 3;
306 if (Opts.OptimizationLevel > MaxOptLevel) {
307 // If the optimization level is not supported, fall back on the default optimization
308 Diags.Report(diag::warn_drv_optimization_value)
309 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
310 Opts.OptimizationLevel = MaxOptLevel;
313 // We must always run at least the always inlining pass.
315 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
316 : CodeGenOptions::OnlyAlwaysInlining);
317 // -fno-inline-functions overrides OptimizationLevel > 1.
318 Opts.NoInline = Args.hasArg(OPT_fno_inline);
319 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ?
320 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining());
322 if (Args.hasArg(OPT_gline_tables_only)) {
323 Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly);
324 } else if (Args.hasArg(OPT_g_Flag) || Args.hasArg(OPT_gdwarf_2) ||
325 Args.hasArg(OPT_gdwarf_3) || Args.hasArg(OPT_gdwarf_4)) {
326 bool Default = false;
327 // Until dtrace (via CTF) can deal with distributed debug info,
328 // Darwin defaults to standalone/full debug info.
329 if (llvm::Triple(TargetOpts.Triple).isOSDarwin())
332 if (Args.hasFlag(OPT_fstandalone_debug, OPT_fno_standalone_debug, Default))
333 Opts.setDebugInfo(CodeGenOptions::FullDebugInfo);
335 Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo);
337 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
338 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
339 if (Args.hasArg(OPT_gdwarf_2))
340 Opts.DwarfVersion = 2;
341 else if (Args.hasArg(OPT_gdwarf_3))
342 Opts.DwarfVersion = 3;
343 else if (Args.hasArg(OPT_gdwarf_4))
344 Opts.DwarfVersion = 4;
345 else if (Opts.getDebugInfo() != CodeGenOptions::NoDebugInfo)
346 // Default Dwarf version is 4 if we are generating debug information.
347 Opts.DwarfVersion = 4;
349 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
350 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
351 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
352 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
353 OPT_fuse_register_sized_bitfield_access);
354 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
355 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
356 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
357 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
358 Opts.NoCommon = Args.hasArg(OPT_fno_common);
359 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
360 Opts.OptimizeSize = getOptimizationLevelSize(Args);
361 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
362 Args.hasArg(OPT_ffreestanding));
364 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
365 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize));
366 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
368 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
369 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
370 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
371 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
372 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device);
373 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
374 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
375 Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model);
376 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
377 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim);
378 Opts.DisableFree = Args.hasArg(OPT_disable_free);
379 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
380 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
381 Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables);
382 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable);
383 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
384 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
385 Args.hasArg(OPT_cl_finite_math_only)||
386 Args.hasArg(OPT_cl_fast_relaxed_math));
387 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
388 Args.hasArg(OPT_cl_finite_math_only)||
389 Args.hasArg(OPT_cl_fast_relaxed_math));
390 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
391 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
392 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
393 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge);
394 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
395 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
396 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
397 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
398 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
399 Opts.NoDwarf2CFIAsm = Args.hasArg(OPT_fno_dwarf2_cfi_asm);
400 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
401 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
402 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
403 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
404 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
405 Args.hasArg(OPT_cl_fast_relaxed_math);
406 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
407 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
408 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
409 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
411 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
412 OPT_fno_function_sections, false);
413 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
414 OPT_fno_data_sections, false);
416 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive);
417 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
418 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
420 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
421 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
422 Opts.SanitizeRecover = !Args.hasArg(OPT_fno_sanitize_recover);
424 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
425 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
426 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
427 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
428 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file);
429 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
430 Opts.CoverageNoFunctionNamesInData =
431 Args.hasArg(OPT_coverage_no_function_names_in_data);
432 if (Args.hasArg(OPT_coverage_version_EQ)) {
433 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
434 if (CoverageVersion.size() != 4) {
435 Diags.Report(diag::err_drv_invalid_value)
436 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
439 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
444 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
445 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
446 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
447 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
448 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file);
449 Opts.SanitizerBlacklistFile = Args.getLastArgValue(OPT_fsanitize_blacklist);
450 Opts.SanitizeMemoryTrackOrigins =
451 Args.hasArg(OPT_fsanitize_memory_track_origins);
452 Opts.SanitizeAddressZeroBaseShadow =
453 Args.hasArg(OPT_fsanitize_address_zero_base_shadow);
454 Opts.SanitizeUndefinedTrapOnError =
455 Args.hasArg(OPT_fsanitize_undefined_trap_on_error);
457 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
458 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
459 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
460 StringRef Val = A->getValue();
461 unsigned StackAlignment = Opts.StackAlignment;
462 Val.getAsInteger(10, StackAlignment);
463 Opts.StackAlignment = StackAlignment;
466 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
467 StringRef Name = A->getValue();
468 unsigned Method = llvm::StringSwitch<unsigned>(Name)
469 .Case("legacy", CodeGenOptions::Legacy)
470 .Case("non-legacy", CodeGenOptions::NonLegacy)
471 .Case("mixed", CodeGenOptions::Mixed)
474 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
477 Opts.setObjCDispatchMethod(
478 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
482 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
483 StringRef Name = A->getValue();
484 unsigned Model = llvm::StringSwitch<unsigned>(Name)
485 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
486 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
487 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
488 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
491 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
494 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
498 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
499 StringRef Val = A->getValue();
501 Opts.setFPContractMode(CodeGenOptions::FPC_Fast);
502 else if (Val == "on")
503 Opts.setFPContractMode(CodeGenOptions::FPC_On);
504 else if (Val == "off")
505 Opts.setFPContractMode(CodeGenOptions::FPC_Off);
507 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
510 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
511 if (A->getOption().matches(OPT_fpcc_struct_return)) {
512 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
514 assert(A->getOption().matches(OPT_freg_struct_return));
515 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
519 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
524 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
526 using namespace options;
527 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
528 Opts.Targets = Args.getAllArgValues(OPT_MT);
529 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
530 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
531 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
532 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
533 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
534 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes);
535 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
538 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
539 DiagnosticsEngine *Diags) {
540 using namespace options;
543 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
544 Opts.DiagnosticSerializationFile =
545 Args.getLastArgValue(OPT_diagnostic_serialized_file);
546 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
547 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
548 Opts.Pedantic = Args.hasArg(OPT_pedantic);
549 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
550 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
551 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics);
552 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
555 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
556 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
557 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
559 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
561 // Default behavior is to not to show note include stacks.
562 Opts.ShowNoteIncludeStack = false;
563 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
564 OPT_fno_diagnostics_show_note_include_stack))
565 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
566 Opts.ShowNoteIncludeStack = true;
568 StringRef ShowOverloads =
569 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
570 if (ShowOverloads == "best")
571 Opts.setShowOverloads(Ovl_Best);
572 else if (ShowOverloads == "all")
573 Opts.setShowOverloads(Ovl_All);
577 Diags->Report(diag::err_drv_invalid_value)
578 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
582 StringRef ShowCategory =
583 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
584 if (ShowCategory == "none")
585 Opts.ShowCategories = 0;
586 else if (ShowCategory == "id")
587 Opts.ShowCategories = 1;
588 else if (ShowCategory == "name")
589 Opts.ShowCategories = 2;
593 Diags->Report(diag::err_drv_invalid_value)
594 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
599 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
600 if (Format == "clang")
601 Opts.setFormat(DiagnosticOptions::Clang);
602 else if (Format == "msvc")
603 Opts.setFormat(DiagnosticOptions::Msvc);
604 else if (Format == "msvc-fallback") {
605 Opts.setFormat(DiagnosticOptions::Msvc);
606 Opts.CLFallbackMode = true;
607 } else if (Format == "vi")
608 Opts.setFormat(DiagnosticOptions::Vi);
612 Diags->Report(diag::err_drv_invalid_value)
613 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
617 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
618 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
619 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
620 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
621 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
622 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
623 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
624 Opts.MacroBacktraceLimit =
625 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
626 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
627 Opts.TemplateBacktraceLimit = getLastArgIntValue(
628 Args, OPT_ftemplate_backtrace_limit,
629 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
630 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
631 Args, OPT_fconstexpr_backtrace_limit,
632 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
633 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
634 DiagnosticOptions::DefaultTabStop, Diags);
635 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
636 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
638 Diags->Report(diag::warn_ignoring_ftabstop_value)
639 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
641 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
642 addWarningArgs(Args, Opts.Warnings);
647 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
648 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
651 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
652 DiagnosticsEngine &Diags) {
653 using namespace options;
654 Opts.ProgramAction = frontend::ParseSyntaxOnly;
655 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
656 switch (A->getOption().getID()) {
658 llvm_unreachable("Invalid option in group!");
660 Opts.ProgramAction = frontend::ASTDeclList; break;
662 Opts.ProgramAction = frontend::ASTDump; break;
664 Opts.ProgramAction = frontend::ASTPrint; break;
666 Opts.ProgramAction = frontend::ASTView; break;
667 case OPT_dump_raw_tokens:
668 Opts.ProgramAction = frontend::DumpRawTokens; break;
669 case OPT_dump_tokens:
670 Opts.ProgramAction = frontend::DumpTokens; break;
672 Opts.ProgramAction = frontend::EmitAssembly; break;
673 case OPT_emit_llvm_bc:
674 Opts.ProgramAction = frontend::EmitBC; break;
676 Opts.ProgramAction = frontend::EmitHTML; break;
678 Opts.ProgramAction = frontend::EmitLLVM; break;
679 case OPT_emit_llvm_only:
680 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
681 case OPT_emit_codegen_only:
682 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
684 Opts.ProgramAction = frontend::EmitObj; break;
686 Opts.FixItSuffix = A->getValue();
689 Opts.ProgramAction = frontend::FixIt; break;
690 case OPT_emit_module:
691 Opts.ProgramAction = frontend::GenerateModule; break;
693 Opts.ProgramAction = frontend::GeneratePCH; break;
695 Opts.ProgramAction = frontend::GeneratePTH; break;
697 Opts.ProgramAction = frontend::InitOnly; break;
698 case OPT_fsyntax_only:
699 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
700 case OPT_module_file_info:
701 Opts.ProgramAction = frontend::ModuleFileInfo; break;
702 case OPT_print_decl_contexts:
703 Opts.ProgramAction = frontend::PrintDeclContext; break;
704 case OPT_print_preamble:
705 Opts.ProgramAction = frontend::PrintPreamble; break;
707 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
708 case OPT_rewrite_macros:
709 Opts.ProgramAction = frontend::RewriteMacros; break;
710 case OPT_rewrite_objc:
711 Opts.ProgramAction = frontend::RewriteObjC; break;
712 case OPT_rewrite_test:
713 Opts.ProgramAction = frontend::RewriteTest; break;
715 Opts.ProgramAction = frontend::RunAnalysis; break;
717 Opts.ProgramAction = frontend::MigrateSource; break;
719 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
723 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
724 Opts.Plugins.push_back(A->getValue(0));
725 Opts.ProgramAction = frontend::PluginAction;
726 Opts.ActionName = A->getValue();
728 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg),
729 end = Args.filtered_end(); it != end; ++it) {
730 if ((*it)->getValue(0) == Opts.ActionName)
731 Opts.PluginArgs.push_back((*it)->getValue(1));
735 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
736 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size());
737 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) {
738 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg),
739 end = Args.filtered_end(); it != end; ++it) {
740 if ((*it)->getValue(0) == Opts.AddPluginActions[i])
741 Opts.AddPluginArgs[i].push_back((*it)->getValue(1));
745 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
746 Opts.CodeCompletionAt =
747 ParsedSourceLocation::FromString(A->getValue());
748 if (Opts.CodeCompletionAt.FileName.empty())
749 Diags.Report(diag::err_drv_invalid_value)
750 << A->getAsString(Args) << A->getValue();
752 Opts.DisableFree = Args.hasArg(OPT_disable_free);
754 Opts.OutputFile = Args.getLastArgValue(OPT_o);
755 Opts.Plugins = Args.getAllArgValues(OPT_load);
756 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
757 Opts.ShowHelp = Args.hasArg(OPT_help);
758 Opts.ShowStats = Args.hasArg(OPT_print_stats);
759 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
760 Opts.ShowVersion = Args.hasArg(OPT_version);
761 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
762 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
763 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
764 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
765 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
766 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
767 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
768 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
769 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
770 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
772 Opts.CodeCompleteOpts.IncludeMacros
773 = Args.hasArg(OPT_code_completion_macros);
774 Opts.CodeCompleteOpts.IncludeCodePatterns
775 = Args.hasArg(OPT_code_completion_patterns);
776 Opts.CodeCompleteOpts.IncludeGlobals
777 = !Args.hasArg(OPT_no_code_completion_globals);
778 Opts.CodeCompleteOpts.IncludeBriefComments
779 = Args.hasArg(OPT_code_completion_brief_comments);
781 Opts.OverrideRecordLayoutsFile
782 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
783 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
785 OPT_arcmt_migrate)) {
786 switch (A->getOption().getID()) {
788 llvm_unreachable("missed a case");
789 case OPT_arcmt_check:
790 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
792 case OPT_arcmt_modify:
793 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
795 case OPT_arcmt_migrate:
796 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
800 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
801 Opts.ARCMTMigrateReportOut
802 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
803 Opts.ARCMTMigrateEmitARCErrors
804 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
806 if (Args.hasArg(OPT_objcmt_migrate_literals))
807 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
808 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
809 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
810 if (Args.hasArg(OPT_objcmt_migrate_property))
811 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
812 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
813 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
814 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
815 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
816 if (Args.hasArg(OPT_objcmt_migrate_annotation))
817 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
818 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
819 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
820 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
821 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
822 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
823 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
824 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
825 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
826 if (Args.hasArg(OPT_objcmt_atomic_property))
827 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
828 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
829 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
830 if (Args.hasArg(OPT_objcmt_migrate_all))
831 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
833 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_white_list_dir_path);
835 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
836 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
837 Diags.Report(diag::err_drv_argument_not_allowed_with)
838 << "ARC migration" << "ObjC migration";
841 InputKind DashX = IK_None;
842 if (const Arg *A = Args.getLastArg(OPT_x)) {
843 DashX = llvm::StringSwitch<InputKind>(A->getValue())
845 .Case("cl", IK_OpenCL)
846 .Case("cuda", IK_CUDA)
848 .Case("objective-c", IK_ObjC)
849 .Case("objective-c++", IK_ObjCXX)
850 .Case("cpp-output", IK_PreprocessedC)
851 .Case("assembler-with-cpp", IK_Asm)
852 .Case("c++-cpp-output", IK_PreprocessedCXX)
853 .Case("objective-c-cpp-output", IK_PreprocessedObjC)
854 .Case("objc-cpp-output", IK_PreprocessedObjC)
855 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
856 .Case("objc++-cpp-output", IK_PreprocessedObjCXX)
857 .Case("c-header", IK_C)
858 .Case("cl-header", IK_OpenCL)
859 .Case("objective-c-header", IK_ObjC)
860 .Case("c++-header", IK_CXX)
861 .Case("objective-c++-header", IK_ObjCXX)
862 .Cases("ast", "pcm", IK_AST)
863 .Case("ir", IK_LLVM_IR)
865 if (DashX == IK_None)
866 Diags.Report(diag::err_drv_invalid_value)
867 << A->getAsString(Args) << A->getValue();
870 // '-' is the default input if none is given.
871 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
874 Inputs.push_back("-");
875 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
876 InputKind IK = DashX;
878 IK = FrontendOptions::getInputKindForExtension(
879 StringRef(Inputs[i]).rsplit('.').second);
880 // FIXME: Remove this hack.
884 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK));
890 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
892 SmallString<128> P(llvm::sys::fs::getMainExecutable(Argv0, MainAddr));
895 llvm::sys::path::remove_filename(P); // Remove /clang from foo/bin/clang
896 llvm::sys::path::remove_filename(P); // Remove /bin from foo/bin
898 // Get foo/lib/clang/<version>/include
899 llvm::sys::path::append(P, "lib", "clang", CLANG_VERSION_STRING);
905 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
906 using namespace options;
907 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
908 Opts.Verbose = Args.hasArg(OPT_v);
909 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
910 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
911 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
912 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
913 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
914 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
915 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path);
916 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
917 // -fmodules implies -fmodule-maps
918 Opts.ModuleMaps = Args.hasArg(OPT_fmodule_maps) || Args.hasArg(OPT_fmodules);
919 Opts.ModuleCachePruneInterval =
920 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
921 Opts.ModuleCachePruneAfter =
922 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
923 for (arg_iterator it = Args.filtered_begin(OPT_fmodules_ignore_macro),
924 ie = Args.filtered_end();
926 StringRef MacroDef = (*it)->getValue();
927 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first);
929 std::vector<std::string> ModuleMapFiles =
930 Args.getAllArgValues(OPT_fmodule_map_file);
931 Opts.ModuleMapFiles.insert(ModuleMapFiles.begin(), ModuleMapFiles.end());
933 // Add -I..., -F..., and -index-header-map options in order.
934 bool IsIndexHeaderMap = false;
935 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F,
936 OPT_index_header_map),
937 ie = Args.filtered_end(); it != ie; ++it) {
938 if ((*it)->getOption().matches(OPT_index_header_map)) {
939 // -index-header-map applies to the next -I or -F.
940 IsIndexHeaderMap = true;
944 frontend::IncludeDirGroup Group
945 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled;
947 Opts.AddPath((*it)->getValue(), Group,
948 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), true);
949 IsIndexHeaderMap = false;
952 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
953 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
954 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix,
955 OPT_iwithprefixbefore),
956 ie = Args.filtered_end(); it != ie; ++it) {
958 if (A->getOption().matches(OPT_iprefix))
959 Prefix = A->getValue();
960 else if (A->getOption().matches(OPT_iwithprefix))
961 Opts.AddPath(Prefix.str() + A->getValue(),
962 frontend::After, false, true);
964 Opts.AddPath(Prefix.str() + A->getValue(),
965 frontend::Angled, false, true);
968 for (arg_iterator it = Args.filtered_begin(OPT_idirafter),
969 ie = Args.filtered_end(); it != ie; ++it)
970 Opts.AddPath((*it)->getValue(), frontend::After, false, true);
971 for (arg_iterator it = Args.filtered_begin(OPT_iquote),
972 ie = Args.filtered_end(); it != ie; ++it)
973 Opts.AddPath((*it)->getValue(), frontend::Quoted, false, true);
974 for (arg_iterator it = Args.filtered_begin(OPT_isystem,
975 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it)
976 Opts.AddPath((*it)->getValue(), frontend::System, false,
977 !(*it)->getOption().matches(OPT_iwithsysroot));
978 for (arg_iterator it = Args.filtered_begin(OPT_iframework),
979 ie = Args.filtered_end(); it != ie; ++it)
980 Opts.AddPath((*it)->getValue(), frontend::System, true, true);
982 // Add the paths for the various language specific isystem flags.
983 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem),
984 ie = Args.filtered_end(); it != ie; ++it)
985 Opts.AddPath((*it)->getValue(), frontend::CSystem, false, true);
986 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem),
987 ie = Args.filtered_end(); it != ie; ++it)
988 Opts.AddPath((*it)->getValue(), frontend::CXXSystem, false, true);
989 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem),
990 ie = Args.filtered_end(); it != ie; ++it)
991 Opts.AddPath((*it)->getValue(), frontend::ObjCSystem, false,true);
992 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem),
993 ie = Args.filtered_end(); it != ie; ++it)
994 Opts.AddPath((*it)->getValue(), frontend::ObjCXXSystem, false, true);
996 // Add the internal paths from a driver that detects standard include paths.
997 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem,
998 OPT_internal_externc_isystem),
999 E = Args.filtered_end();
1001 frontend::IncludeDirGroup Group = frontend::System;
1002 if ((*I)->getOption().matches(OPT_internal_externc_isystem))
1003 Group = frontend::ExternCSystem;
1004 Opts.AddPath((*I)->getValue(), Group, false, true);
1007 // Add the path prefixes which are implicitly treated as being system headers.
1008 for (arg_iterator I = Args.filtered_begin(OPT_isystem_prefix,
1009 OPT_ino_system_prefix),
1010 E = Args.filtered_end();
1012 Opts.AddSystemHeaderPrefix((*I)->getValue(),
1013 (*I)->getOption().matches(OPT_isystem_prefix));
1016 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
1017 LangStandard::Kind LangStd) {
1018 // Set some properties which depend solely on the input kind; it would be nice
1019 // to move these to the language standard, and have the driver resolve the
1020 // input kind + language standard.
1022 Opts.AsmPreprocessor = 1;
1023 } else if (IK == IK_ObjC ||
1025 IK == IK_PreprocessedObjC ||
1026 IK == IK_PreprocessedObjCXX) {
1027 Opts.ObjC1 = Opts.ObjC2 = 1;
1030 if (LangStd == LangStandard::lang_unspecified) {
1031 // Based on the base language, pick one.
1036 llvm_unreachable("Invalid input kind!");
1038 LangStd = LangStandard::lang_opencl;
1041 LangStd = LangStandard::lang_cuda;
1045 case IK_PreprocessedC:
1047 case IK_PreprocessedObjC:
1048 LangStd = LangStandard::lang_gnu99;
1051 case IK_PreprocessedCXX:
1053 case IK_PreprocessedObjCXX:
1054 LangStd = LangStandard::lang_gnucxx98;
1059 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1060 Opts.LineComment = Std.hasLineComments();
1061 Opts.C99 = Std.isC99();
1062 Opts.C11 = Std.isC11();
1063 Opts.CPlusPlus = Std.isCPlusPlus();
1064 Opts.CPlusPlus11 = Std.isCPlusPlus11();
1065 Opts.CPlusPlus1y = Std.isCPlusPlus1y();
1066 Opts.Digraphs = Std.hasDigraphs();
1067 Opts.GNUMode = Std.isGNUMode();
1068 Opts.GNUInline = !Std.isC99();
1069 Opts.HexFloats = Std.hasHexFloats();
1070 Opts.ImplicitInt = Std.hasImplicitInt();
1072 // Set OpenCL Version.
1073 if (LangStd == LangStandard::lang_opencl) {
1075 Opts.OpenCLVersion = 100;
1077 else if (LangStd == LangStandard::lang_opencl11) {
1079 Opts.OpenCLVersion = 110;
1081 else if (LangStd == LangStandard::lang_opencl12) {
1083 Opts.OpenCLVersion = 120;
1086 // OpenCL has some additional defaults.
1089 Opts.CXXOperatorNames = 1;
1090 Opts.LaxVectorConversions = 0;
1091 Opts.DefaultFPContract = 1;
1092 Opts.NativeHalfType = 1;
1095 if (LangStd == LangStandard::lang_cuda)
1098 // OpenCL and C++ both have bool, true, false keywords.
1099 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1101 // C++ has wchar_t keyword.
1102 Opts.WChar = Opts.CPlusPlus;
1104 Opts.GNUKeywords = Opts.GNUMode;
1105 Opts.CXXOperatorNames = Opts.CPlusPlus;
1107 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1108 // is specified, or -std is set to a conforming mode.
1109 Opts.Trigraphs = !Opts.GNUMode;
1111 Opts.DollarIdents = !Opts.AsmPreprocessor;
1113 // C++1y onwards has sized global deallocation functions.
1114 Opts.SizedDeallocation = Opts.CPlusPlus1y;
1117 /// Attempt to parse a visibility value out of the given argument.
1118 static Visibility parseVisibility(Arg *arg, ArgList &args,
1119 DiagnosticsEngine &diags) {
1120 StringRef value = arg->getValue();
1121 if (value == "default") {
1122 return DefaultVisibility;
1123 } else if (value == "hidden") {
1124 return HiddenVisibility;
1125 } else if (value == "protected") {
1126 // FIXME: diagnose if target does not support protected visibility
1127 return ProtectedVisibility;
1130 diags.Report(diag::err_drv_invalid_value)
1131 << arg->getAsString(args) << value;
1132 return DefaultVisibility;
1135 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
1136 DiagnosticsEngine &Diags) {
1137 // FIXME: Cleanup per-file based stuff.
1138 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1139 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
1140 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1141 #define LANGSTANDARD(id, name, desc, features) \
1142 .Case(name, LangStandard::lang_##id)
1143 #include "clang/Frontend/LangStandards.def"
1144 .Default(LangStandard::lang_unspecified);
1145 if (LangStd == LangStandard::lang_unspecified)
1146 Diags.Report(diag::err_drv_invalid_value)
1147 << A->getAsString(Args) << A->getValue();
1149 // Valid standard, check to make sure language and standard are compatable.
1150 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1154 case IK_PreprocessedC:
1155 case IK_PreprocessedObjC:
1156 if (!(Std.isC89() || Std.isC99()))
1157 Diags.Report(diag::err_drv_argument_not_allowed_with)
1158 << A->getAsString(Args) << "C/ObjC";
1162 case IK_PreprocessedCXX:
1163 case IK_PreprocessedObjCXX:
1164 if (!Std.isCPlusPlus())
1165 Diags.Report(diag::err_drv_argument_not_allowed_with)
1166 << A->getAsString(Args) << "C++/ObjC++";
1170 Diags.Report(diag::err_drv_argument_not_allowed_with)
1171 << A->getAsString(Args) << "OpenCL";
1174 if (!Std.isCPlusPlus())
1175 Diags.Report(diag::err_drv_argument_not_allowed_with)
1176 << A->getAsString(Args) << "CUDA";
1184 // -cl-std only applies for OpenCL language standards.
1185 // Override the -std option in this case.
1186 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
1187 LangStandard::Kind OpenCLLangStd
1188 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1189 .Case("CL", LangStandard::lang_opencl)
1190 .Case("CL1.1", LangStandard::lang_opencl11)
1191 .Case("CL1.2", LangStandard::lang_opencl12)
1192 .Default(LangStandard::lang_unspecified);
1194 if (OpenCLLangStd == LangStandard::lang_unspecified) {
1195 Diags.Report(diag::err_drv_invalid_value)
1196 << A->getAsString(Args) << A->getValue();
1199 LangStd = OpenCLLangStd;
1202 CompilerInvocation::setLangDefaults(Opts, IK, LangStd);
1204 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1205 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1206 // while a subset (the non-C++ GNU keywords) is provided by GCC's
1207 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1208 // name, as it doesn't seem a useful distinction.
1209 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
1212 if (Args.hasArg(OPT_fno_operator_names))
1213 Opts.CXXOperatorNames = 0;
1216 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
1217 StringRef value = arg->getValue();
1218 if (Opts.ObjCRuntime.tryParse(value))
1219 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
1222 if (Args.hasArg(OPT_fobjc_gc_only))
1223 Opts.setGC(LangOptions::GCOnly);
1224 else if (Args.hasArg(OPT_fobjc_gc))
1225 Opts.setGC(LangOptions::HybridGC);
1226 else if (Args.hasArg(OPT_fobjc_arc)) {
1227 Opts.ObjCAutoRefCount = 1;
1228 if (!Opts.ObjCRuntime.allowsARC())
1229 Diags.Report(diag::err_arc_unsupported_on_runtime);
1231 // Only set ObjCARCWeak if ARC is enabled.
1232 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
1233 Opts.ObjCARCWeak = 1;
1235 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak();
1238 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
1239 Opts.ObjCInferRelatedResultType = 0;
1241 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
1242 Opts.ObjCSubscriptingLegacyRuntime =
1243 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
1246 if (Args.hasArg(OPT_fgnu89_inline))
1249 if (Args.hasArg(OPT_fapple_kext)) {
1250 if (!Opts.CPlusPlus)
1251 Diags.Report(diag::warn_c_kext);
1256 if (Args.hasArg(OPT_print_ivar_layout))
1257 Opts.ObjCGCBitmapPrint = 1;
1258 if (Args.hasArg(OPT_fno_constant_cfstrings))
1259 Opts.NoConstantCFStrings = 1;
1261 if (Args.hasArg(OPT_faltivec))
1264 if (Args.hasArg(OPT_pthread))
1265 Opts.POSIXThreads = 1;
1267 // The value-visibility mode defaults to "default".
1268 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
1269 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
1271 Opts.setValueVisibilityMode(DefaultVisibility);
1274 // The type-visibility mode defaults to the value-visibility mode.
1275 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
1276 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
1278 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
1281 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
1282 Opts.InlineVisibilityHidden = 1;
1284 if (Args.hasArg(OPT_ftrapv)) {
1285 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
1286 // Set the handler, if one is specified.
1287 Opts.OverflowHandler =
1288 Args.getLastArgValue(OPT_ftrapv_handler);
1290 else if (Args.hasArg(OPT_fwrapv))
1291 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
1293 if (Args.hasArg(OPT_trigraphs))
1296 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
1297 OPT_fno_dollars_in_identifiers,
1299 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
1301 = Args.hasArg(OPT_fms_extensions) || Args.hasArg(OPT_fms_compatibility);
1302 Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility);
1303 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
1304 Opts.MSCVersion = getLastArgIntValue(Args, OPT_fmsc_version, 0, Diags);
1305 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
1306 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
1307 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
1309 if (Args.hasArg(OPT_fno_lax_vector_conversions))
1310 Opts.LaxVectorConversions = 0;
1311 if (Args.hasArg(OPT_fno_threadsafe_statics))
1312 Opts.ThreadsafeStatics = 0;
1313 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
1314 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
1315 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
1316 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
1317 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
1319 Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
1320 Opts.Blocks = Args.hasArg(OPT_fblocks);
1321 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
1322 Opts.Modules = Args.hasArg(OPT_fmodules);
1323 Opts.ModulesDeclUse = Args.hasArg(OPT_fmodules_decluse);
1324 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
1325 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
1326 Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar);
1327 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
1328 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
1329 Opts.FormatExtensions = Args.hasArg(OPT_fformat_extensions);
1330 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
1331 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
1332 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
1333 Opts.SizedDeallocation |= Args.hasArg(OPT_fsized_deallocation);
1334 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
1335 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
1336 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
1337 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
1338 Opts.InstantiationDepth =
1339 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags);
1341 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
1342 Opts.ConstexprCallDepth =
1343 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
1344 Opts.ConstexprStepLimit =
1345 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
1346 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
1347 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
1348 Opts.NumLargeByValueCopy =
1349 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
1350 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
1351 Opts.ObjCConstantStringClass =
1352 Args.getLastArgValue(OPT_fconstant_string_class);
1353 Opts.ObjCDefaultSynthProperties =
1354 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
1355 Opts.EncodeExtendedBlockSig =
1356 Args.hasArg(OPT_fencode_extended_block_signature);
1357 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
1358 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
1359 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
1360 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags);
1361 Opts.Static = Args.hasArg(OPT_static_define);
1362 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
1363 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
1364 || Args.hasArg(OPT_fdump_record_layouts);
1365 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
1366 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
1367 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
1368 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
1369 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
1370 Opts.MRTD = Args.hasArg(OPT_mrtd);
1371 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
1372 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
1373 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
1374 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
1375 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
1376 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
1377 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
1378 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name);
1380 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
1381 switch (llvm::StringSwitch<unsigned>(A->getValue())
1382 .Case("target", LangOptions::ASMM_Target)
1383 .Case("no", LangOptions::ASMM_Off)
1384 .Case("yes", LangOptions::ASMM_On)
1387 Diags.Report(diag::err_drv_invalid_value)
1388 << "-faddress-space-map-mangling=" << A->getValue();
1390 case LangOptions::ASMM_Target:
1391 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
1393 case LangOptions::ASMM_On:
1394 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
1396 case LangOptions::ASMM_Off:
1397 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
1402 // Check if -fopenmp is specified.
1403 Opts.OpenMP = Args.hasArg(OPT_fopenmp);
1405 // Record whether the __DEPRECATED define was requested.
1406 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
1407 OPT_fno_deprecated_macro,
1410 // FIXME: Eliminate this dependency.
1411 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
1412 OptSize = getOptimizationLevelSize(Args);
1413 Opts.Optimize = Opt != 0;
1414 Opts.OptimizeSize = OptSize != 0;
1416 // This is the __NO_INLINE__ define, which just depends on things like the
1417 // optimization level and -fno-inline, not actually whether the backend has
1418 // inlining enabled.
1419 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline);
1421 Opts.FastMath = Args.hasArg(OPT_ffast_math);
1422 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only);
1424 Opts.RetainCommentsFromSystemHeaders =
1425 Args.hasArg(OPT_fretain_comments_from_system_headers);
1427 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
1430 Diags.Report(diag::err_drv_invalid_value)
1431 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
1433 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
1434 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
1435 case 2: Opts.setStackProtector(LangOptions::SSPReq); break;
1438 // Parse -fsanitize= arguments.
1439 std::vector<std::string> Sanitizers = Args.getAllArgValues(OPT_fsanitize_EQ);
1440 for (unsigned I = 0, N = Sanitizers.size(); I != N; ++I) {
1441 // Since the Opts.Sanitize* values are bitfields, it's a little tricky to
1442 // efficiently map string values to them. Perform the mapping indirectly:
1443 // convert strings to enumerated values, then switch over the enum to set
1444 // the right bitfield value.
1446 #define SANITIZER(NAME, ID) \
1448 #include "clang/Basic/Sanitizers.def"
1451 switch (llvm::StringSwitch<unsigned>(Sanitizers[I])
1452 #define SANITIZER(NAME, ID) \
1454 #include "clang/Basic/Sanitizers.def"
1455 .Default(Unknown)) {
1456 #define SANITIZER(NAME, ID) \
1458 Opts.Sanitize.ID = true; \
1460 #include "clang/Basic/Sanitizers.def"
1463 Diags.Report(diag::err_drv_invalid_value)
1464 << "-fsanitize=" << Sanitizers[I];
1470 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
1471 FileManager &FileMgr,
1472 DiagnosticsEngine &Diags) {
1473 using namespace options;
1474 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
1475 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
1476 if (const Arg *A = Args.getLastArg(OPT_token_cache))
1477 Opts.TokenCache = A->getValue();
1479 Opts.TokenCache = Opts.ImplicitPTHInclude;
1480 Opts.UsePredefines = !Args.hasArg(OPT_undef);
1481 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
1482 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
1484 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
1485 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl),
1486 ie = Args.filtered_end(); it != ie; ++it) {
1488 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
1491 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
1492 StringRef Value(A->getValue());
1493 size_t Comma = Value.find(',');
1495 unsigned EndOfLine = 0;
1497 if (Comma == StringRef::npos ||
1498 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
1499 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
1500 Diags.Report(diag::err_drv_preamble_format);
1502 Opts.PrecompiledPreambleBytes.first = Bytes;
1503 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
1507 // Add macros from the command line.
1508 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U),
1509 ie = Args.filtered_end(); it != ie; ++it) {
1510 if ((*it)->getOption().matches(OPT_D))
1511 Opts.addMacroDef((*it)->getValue());
1513 Opts.addMacroUndef((*it)->getValue());
1516 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
1518 // Add the ordered list of -includes.
1519 for (arg_iterator it = Args.filtered_begin(OPT_include),
1520 ie = Args.filtered_end(); it != ie; ++it) {
1522 Opts.Includes.push_back(A->getValue());
1525 for (arg_iterator it = Args.filtered_begin(OPT_chain_include),
1526 ie = Args.filtered_end(); it != ie; ++it) {
1528 Opts.ChainedIncludes.push_back(A->getValue());
1531 // Include 'altivec.h' if -faltivec option present
1532 if (Args.hasArg(OPT_faltivec))
1533 Opts.Includes.push_back("altivec.h");
1535 for (arg_iterator it = Args.filtered_begin(OPT_remap_file),
1536 ie = Args.filtered_end(); it != ie; ++it) {
1538 std::pair<StringRef,StringRef> Split =
1539 StringRef(A->getValue()).split(';');
1541 if (Split.second.empty()) {
1542 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
1546 Opts.addRemappedFile(Split.first, Split.second);
1549 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
1550 StringRef Name = A->getValue();
1551 unsigned Library = llvm::StringSwitch<unsigned>(Name)
1552 .Case("libc++", ARCXX_libcxx)
1553 .Case("libstdc++", ARCXX_libstdcxx)
1554 .Case("none", ARCXX_nolib)
1557 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1559 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
1563 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
1565 frontend::ActionKind Action) {
1566 using namespace options;
1569 case frontend::ASTDeclList:
1570 case frontend::ASTDump:
1571 case frontend::ASTPrint:
1572 case frontend::ASTView:
1573 case frontend::EmitAssembly:
1574 case frontend::EmitBC:
1575 case frontend::EmitHTML:
1576 case frontend::EmitLLVM:
1577 case frontend::EmitLLVMOnly:
1578 case frontend::EmitCodeGenOnly:
1579 case frontend::EmitObj:
1580 case frontend::FixIt:
1581 case frontend::GenerateModule:
1582 case frontend::GeneratePCH:
1583 case frontend::GeneratePTH:
1584 case frontend::ParseSyntaxOnly:
1585 case frontend::ModuleFileInfo:
1586 case frontend::PluginAction:
1587 case frontend::PrintDeclContext:
1588 case frontend::RewriteObjC:
1589 case frontend::RewriteTest:
1590 case frontend::RunAnalysis:
1591 case frontend::MigrateSource:
1595 case frontend::DumpRawTokens:
1596 case frontend::DumpTokens:
1597 case frontend::InitOnly:
1598 case frontend::PrintPreamble:
1599 case frontend::PrintPreprocessedInput:
1600 case frontend::RewriteMacros:
1601 case frontend::RunPreprocessorOnly:
1602 Opts.ShowCPP = !Args.hasArg(OPT_dM);
1606 Opts.ShowComments = Args.hasArg(OPT_C);
1607 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
1608 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
1609 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
1610 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
1613 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
1614 using namespace options;
1615 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
1616 Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi);
1617 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
1618 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
1619 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
1620 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
1621 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
1623 // Use the default target triple if unspecified.
1624 if (Opts.Triple.empty())
1625 Opts.Triple = llvm::sys::getDefaultTargetTriple();
1630 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
1631 const char *const *ArgBegin,
1632 const char *const *ArgEnd,
1633 DiagnosticsEngine &Diags) {
1634 bool Success = true;
1636 // Parse the arguments.
1637 OwningPtr<OptTable> Opts(createDriverOptTable());
1638 const unsigned IncludedFlagsBitmask = options::CC1Option;
1639 unsigned MissingArgIndex, MissingArgCount;
1640 OwningPtr<InputArgList> Args(
1641 Opts->ParseArgs(ArgBegin, ArgEnd, MissingArgIndex, MissingArgCount,
1642 IncludedFlagsBitmask));
1644 // Check for missing argument error.
1645 if (MissingArgCount) {
1646 Diags.Report(diag::err_drv_missing_argument)
1647 << Args->getArgString(MissingArgIndex) << MissingArgCount;
1651 // Issue errors on unknown arguments.
1652 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN),
1653 ie = Args->filtered_end(); it != ie; ++it) {
1654 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args);
1658 Success = ParseAnalyzerArgs(*Res.getAnalyzerOpts(), *Args, Diags) && Success;
1659 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success;
1660 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args);
1661 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags)
1663 ParseCommentArgs(Res.getLangOpts()->CommentOpts, *Args);
1664 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args);
1665 // FIXME: We shouldn't have to pass the DashX option around here
1666 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags);
1667 ParseTargetArgs(Res.getTargetOpts(), *Args);
1668 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags,
1669 Res.getTargetOpts()) && Success;
1670 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args);
1671 if (DashX != IK_AST && DashX != IK_LLVM_IR) {
1672 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags);
1673 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
1674 Res.getLangOpts()->ObjCExceptions = 1;
1676 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of
1677 // PCH file and find the original header name. Remove the need to do that in
1678 // ParsePreprocessorArgs and remove the FileManager
1679 // parameters from the function and the "FileManager.h" #include.
1680 FileManager FileMgr(Res.getFileSystemOpts());
1681 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags);
1682 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args,
1683 Res.getFrontendOpts().ProgramAction);
1689 class ModuleSignature {
1690 SmallVector<uint64_t, 16> Data;
1695 ModuleSignature() : CurBit(0), CurValue(0) { }
1697 void add(uint64_t Value, unsigned Bits);
1698 void add(StringRef Value);
1701 llvm::APInt getAsInteger() const;
1705 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) {
1706 CurValue |= Value << CurBit;
1707 if (CurBit + NumBits < 64) {
1712 // Add the current word.
1713 Data.push_back(CurValue);
1716 CurValue = Value >> (64-CurBit);
1719 CurBit = (CurBit+NumBits) & 63;
1722 void ModuleSignature::flush() {
1726 Data.push_back(CurValue);
1731 void ModuleSignature::add(StringRef Value) {
1732 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I)
1736 llvm::APInt ModuleSignature::getAsInteger() const {
1737 return llvm::APInt(Data.size() * 64, Data);
1740 std::string CompilerInvocation::getModuleHash() const {
1741 // Note: For QoI reasons, the things we use as a hash here should all be
1742 // dumped via the -module-info flag.
1743 using llvm::hash_code;
1744 using llvm::hash_value;
1745 using llvm::hash_combine;
1747 // Start the signature with the compiler version.
1748 // FIXME: We'd rather use something more cryptographically sound than
1749 // CityHash, but this will do for now.
1750 hash_code code = hash_value(getClangFullRepositoryVersion());
1752 // Extend the signature with the language options
1753 #define LANGOPT(Name, Bits, Default, Description) \
1754 code = hash_combine(code, LangOpts->Name);
1755 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
1756 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
1757 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
1758 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
1759 #include "clang/Basic/LangOptions.def"
1761 // Extend the signature with the target options.
1762 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
1763 TargetOpts->ABI, TargetOpts->CXXABI,
1764 TargetOpts->LinkerVersion);
1765 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i)
1766 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]);
1768 // Extend the signature with preprocessor options.
1769 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
1770 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
1771 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
1773 std::vector<StringRef> MacroDefs;
1774 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator
1775 I = getPreprocessorOpts().Macros.begin(),
1776 IEnd = getPreprocessorOpts().Macros.end();
1778 // If we're supposed to ignore this macro for the purposes of modules,
1779 // don't put it into the hash.
1780 if (!hsOpts.ModulesIgnoreMacros.empty()) {
1781 // Check whether we're ignoring this macro.
1782 StringRef MacroDef = I->first;
1783 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first))
1787 code = hash_combine(code, I->first, I->second);
1790 // Extend the signature with the sysroot.
1791 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes,
1792 hsOpts.UseStandardSystemIncludes,
1793 hsOpts.UseStandardCXXIncludes,
1796 // Darwin-specific hack: if we have a sysroot, use the contents and
1797 // modification time of
1798 // $sysroot/System/Library/CoreServices/SystemVersion.plist
1799 // as part of the module hash.
1800 if (!hsOpts.Sysroot.empty()) {
1801 llvm::OwningPtr<llvm::MemoryBuffer> buffer;
1802 SmallString<128> systemVersionFile;
1803 systemVersionFile += hsOpts.Sysroot;
1804 llvm::sys::path::append(systemVersionFile, "System");
1805 llvm::sys::path::append(systemVersionFile, "Library");
1806 llvm::sys::path::append(systemVersionFile, "CoreServices");
1807 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist");
1808 if (!llvm::MemoryBuffer::getFile(systemVersionFile.str(), buffer)) {
1809 code = hash_combine(code, buffer.get()->getBuffer());
1811 struct stat statBuf;
1812 if (stat(systemVersionFile.c_str(), &statBuf) == 0)
1813 code = hash_combine(code, statBuf.st_mtime);
1817 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
1822 // Declared in clang/Frontend/Utils.h.
1823 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
1824 DiagnosticsEngine *Diags) {
1826 if (Arg *A = Args.getLastArg(Id)) {
1827 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
1829 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)