xref: /llvm-project/clang/lib/Frontend/CompilerInvocation.cpp (revision f4b0c4b9464f509e46f2c6152e2b644101e61aa3) 
1 //===--- CompilerInvocation.cpp -------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "clang/Frontend/CompilerInvocation.h"
11 #include "clang/Basic/Diagnostic.h"
12 #include "clang/Basic/Version.h"
13 #include "clang/Driver/Arg.h"
14 #include "clang/Driver/ArgList.h"
15 #include "clang/Driver/CC1Options.h"
16 #include "clang/Driver/DriverDiagnostic.h"
17 #include "clang/Driver/OptTable.h"
18 #include "clang/Driver/Option.h"
19 #include "clang/Frontend/CompilerInvocation.h"
20 #include "clang/Frontend/LangStandard.h"
21 #include "clang/Frontend/PCHReader.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/Support/ErrorHandling.h"
27 #include "llvm/System/Host.h"
28 #include "llvm/System/Path.h"
29 using namespace clang;
30 
31 static const char *getAnalysisName(Analyses Kind) {
32   switch (Kind) {
33   default:
34     llvm_unreachable("Unknown analysis kind!");
35 #define ANALYSIS(NAME, CMDFLAG, DESC, SCOPE)\
36   case NAME: return "-" CMDFLAG;
37 #include "clang/Frontend/Analyses.def"
38   }
39 }
40 
41 static const char *getAnalysisStoreName(AnalysisStores Kind) {
42   switch (Kind) {
43   default:
44     llvm_unreachable("Unknown analysis store!");
45 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
46   case NAME##Model: return CMDFLAG;
47 #include "clang/Frontend/Analyses.def"
48   }
49 }
50 
51 static const char *getAnalysisConstraintName(AnalysisConstraints Kind) {
52   switch (Kind) {
53   default:
54     llvm_unreachable("Unknown analysis constraints!");
55 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
56   case NAME##Model: return CMDFLAG;
57 #include "clang/Frontend/Analyses.def"
58   }
59 }
60 
61 static const char *getAnalysisDiagClientName(AnalysisDiagClients Kind) {
62   switch (Kind) {
63   default:
64     llvm_unreachable("Unknown analysis client!");
65 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREATE) \
66   case PD_##NAME: return CMDFLAG;
67 #include "clang/Frontend/Analyses.def"
68   }
69 }
70 
71 //===----------------------------------------------------------------------===//
72 // Serialization (to args)
73 //===----------------------------------------------------------------------===//
74 
75 static void AnalyzerOptsToArgs(const AnalyzerOptions &Opts,
76                                std::vector<std::string> &Res) {
77   for (unsigned i = 0, e = Opts.AnalysisList.size(); i != e; ++i)
78     Res.push_back(getAnalysisName(Opts.AnalysisList[i]));
79   if (Opts.AnalysisStoreOpt != BasicStoreModel) {
80     Res.push_back("-analyzer-store");
81     Res.push_back(getAnalysisStoreName(Opts.AnalysisStoreOpt));
82   }
83   if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) {
84     Res.push_back("-analyzer-constraints");
85     Res.push_back(getAnalysisConstraintName(Opts.AnalysisConstraintsOpt));
86   }
87   if (Opts.AnalysisDiagOpt != PD_HTML) {
88     Res.push_back("-analyzer-output");
89     Res.push_back(getAnalysisDiagClientName(Opts.AnalysisDiagOpt));
90   }
91   if (!Opts.AnalyzeSpecificFunction.empty()) {
92     Res.push_back("-analyze-function");
93     Res.push_back(Opts.AnalyzeSpecificFunction);
94   }
95   if (Opts.AnalyzeAll)
96     Res.push_back("-analyzer-opt-analyze-headers");
97   if (Opts.AnalyzerDisplayProgress)
98     Res.push_back("-analyzer-display-progress");
99   if (Opts.AnalyzeNestedBlocks)
100     Res.push_back("-analyzer-opt-analyze-nested-blocks");
101   if (Opts.EagerlyAssume)
102     Res.push_back("-analyzer-eagerly-assume");
103   if (!Opts.PurgeDead)
104     Res.push_back("-analyzer-no-purge-dead");
105   if (Opts.TrimGraph)
106     Res.push_back("-trim-egraph");
107   if (Opts.VisualizeEGDot)
108     Res.push_back("-analyzer-viz-egraph-graphviz");
109   if (Opts.VisualizeEGDot)
110     Res.push_back("-analyzer-viz-egraph-ubigraph");
111   if (Opts.EnableExperimentalChecks)
112     Res.push_back("-analyzer-experimental-checks");
113   if (Opts.EnableExperimentalInternalChecks)
114     Res.push_back("-analyzer-experimental-internal-checks");
115   if (Opts.EnableIdempotentOperationChecker)
116     Res.push_back("-analyzer-idempotent-operation");
117 }
118 
119 static void CodeGenOptsToArgs(const CodeGenOptions &Opts,
120                               std::vector<std::string> &Res) {
121   if (Opts.DebugInfo)
122     Res.push_back("-g");
123   if (Opts.DisableLLVMOpts)
124     Res.push_back("-disable-llvm-optzns");
125   if (Opts.DisableRedZone)
126     Res.push_back("-disable-red-zone");
127   if (!Opts.DwarfDebugFlags.empty()) {
128     Res.push_back("-dwarf-debug-flags");
129     Res.push_back(Opts.DwarfDebugFlags);
130   }
131   if (!Opts.MergeAllConstants)
132     Res.push_back("-fno-merge-all-constants");
133   if (Opts.NoCommon)
134     Res.push_back("-fno-common");
135   if (Opts.NoImplicitFloat)
136     Res.push_back("-no-implicit-float");
137   if (Opts.OmitLeafFramePointer)
138     Res.push_back("-momit-leaf-frame-pointer");
139   if (Opts.OptimizeSize) {
140     assert(Opts.OptimizationLevel == 2 && "Invalid options!");
141     Res.push_back("-Os");
142   } else if (Opts.OptimizationLevel != 0)
143     Res.push_back("-O" + llvm::utostr(Opts.OptimizationLevel));
144   if (!Opts.MainFileName.empty()) {
145     Res.push_back("-main-file-name");
146     Res.push_back(Opts.MainFileName);
147   }
148   // SimplifyLibCalls is only derived.
149   // TimePasses is only derived.
150   // UnitAtATime is unused.
151   // UnrollLoops is only derived.
152   // Inlining is only derived.
153 
154   if (Opts.DataSections)
155     Res.push_back("-fdata-sections");
156   if (Opts.FunctionSections)
157     Res.push_back("-ffunction-sections");
158   if (Opts.AsmVerbose)
159     Res.push_back("-masm-verbose");
160   if (!Opts.CodeModel.empty()) {
161     Res.push_back("-mcode-model");
162     Res.push_back(Opts.CodeModel);
163   }
164   if (!Opts.CXAAtExit)
165     Res.push_back("-fno-use-cxa-atexit");
166   if (Opts.CXXCtorDtorAliases)
167     Res.push_back("-mconstructor-aliases");
168   if (!Opts.DebugPass.empty()) {
169     Res.push_back("-mdebug-pass");
170     Res.push_back(Opts.DebugPass);
171   }
172   if (Opts.DisableFPElim)
173     Res.push_back("-mdisable-fp-elim");
174   if (!Opts.FloatABI.empty()) {
175     Res.push_back("-mfloat-abi");
176     Res.push_back(Opts.FloatABI);
177   }
178   if (!Opts.LimitFloatPrecision.empty()) {
179     Res.push_back("-mlimit-float-precision");
180     Res.push_back(Opts.LimitFloatPrecision);
181   }
182   if (Opts.NoZeroInitializedInBSS)
183     Res.push_back("-mno-zero-initialized-bss");
184   switch (Opts.getObjCDispatchMethod()) {
185   case CodeGenOptions::Legacy:
186     break;
187   case CodeGenOptions::Mixed:
188     Res.push_back("-fobjc-dispatch-method=mixed");
189     break;
190   case CodeGenOptions::NonLegacy:
191     Res.push_back("-fobjc-dispatch-method=non-legacy");
192     break;
193   }
194   if (Opts.RelaxAll)
195     Res.push_back("-mrelax-all");
196   if (Opts.SoftFloat)
197     Res.push_back("-msoft-float");
198   if (Opts.UnwindTables)
199     Res.push_back("-munwind-tables");
200   if (Opts.RelocationModel != "pic") {
201     Res.push_back("-mrelocation-model");
202     Res.push_back(Opts.RelocationModel);
203   }
204   if (!Opts.VerifyModule)
205     Res.push_back("-disable-llvm-verifier");
206 }
207 
208 static void DependencyOutputOptsToArgs(const DependencyOutputOptions &Opts,
209                                        std::vector<std::string> &Res) {
210   if (Opts.IncludeSystemHeaders)
211     Res.push_back("-sys-header-deps");
212   if (Opts.UsePhonyTargets)
213     Res.push_back("-MP");
214   if (!Opts.OutputFile.empty()) {
215     Res.push_back("-dependency-file");
216     Res.push_back(Opts.OutputFile);
217   }
218   for (unsigned i = 0, e = Opts.Targets.size(); i != e; ++i) {
219     Res.push_back("-MT");
220     Res.push_back(Opts.Targets[i]);
221   }
222 }
223 
224 static void DiagnosticOptsToArgs(const DiagnosticOptions &Opts,
225                                  std::vector<std::string> &Res) {
226   if (Opts.IgnoreWarnings)
227     Res.push_back("-w");
228   if (Opts.NoRewriteMacros)
229     Res.push_back("-Wno-rewrite-macros");
230   if (Opts.Pedantic)
231     Res.push_back("-pedantic");
232   if (Opts.PedanticErrors)
233     Res.push_back("-pedantic-errors");
234   if (!Opts.ShowColumn)
235     Res.push_back("-fno-show-column");
236   if (!Opts.ShowLocation)
237     Res.push_back("-fno-show-source-location");
238   if (!Opts.ShowCarets)
239     Res.push_back("-fno-caret-diagnostics");
240   if (!Opts.ShowFixits)
241     Res.push_back("-fno-diagnostics-fixit-info");
242   if (Opts.ShowSourceRanges)
243     Res.push_back("-fdiagnostics-print-source-range-info");
244   if (Opts.ShowColors)
245     Res.push_back("-fcolor-diagnostics");
246   if (Opts.VerifyDiagnostics)
247     Res.push_back("-verify");
248   if (Opts.BinaryOutput)
249     Res.push_back("-fdiagnostics-binary");
250   if (Opts.ShowOptionNames)
251     Res.push_back("-fdiagnostics-show-option");
252   if (Opts.ShowCategories == 1)
253     Res.push_back("-fdiagnostics-show-category=id");
254   else if (Opts.ShowCategories == 2)
255     Res.push_back("-fdiagnostics-show-category=name");
256   if (Opts.ErrorLimit) {
257     Res.push_back("-ferror-limit");
258     Res.push_back(llvm::utostr(Opts.ErrorLimit));
259   }
260   if (Opts.MacroBacktraceLimit
261                         != DiagnosticOptions::DefaultMacroBacktraceLimit) {
262     Res.push_back("-fmacro-backtrace-limit");
263     Res.push_back(llvm::utostr(Opts.MacroBacktraceLimit));
264   }
265   if (Opts.TemplateBacktraceLimit
266                         != DiagnosticOptions::DefaultTemplateBacktraceLimit) {
267     Res.push_back("-ftemplate-backtrace-limit");
268     Res.push_back(llvm::utostr(Opts.TemplateBacktraceLimit));
269   }
270 
271   if (Opts.TabStop != DiagnosticOptions::DefaultTabStop) {
272     Res.push_back("-ftabstop");
273     Res.push_back(llvm::utostr(Opts.TabStop));
274   }
275   if (Opts.MessageLength) {
276     Res.push_back("-fmessage-length");
277     Res.push_back(llvm::utostr(Opts.MessageLength));
278   }
279   if (!Opts.DumpBuildInformation.empty()) {
280     Res.push_back("-dump-build-information");
281     Res.push_back(Opts.DumpBuildInformation);
282   }
283   for (unsigned i = 0, e = Opts.Warnings.size(); i != e; ++i)
284     Res.push_back("-W" + Opts.Warnings[i]);
285 }
286 
287 static const char *getInputKindName(InputKind Kind) {
288   switch (Kind) {
289   case IK_None:              break;
290   case IK_AST:               return "ast";
291   case IK_Asm:               return "assembler-with-cpp";
292   case IK_C:                 return "c";
293   case IK_CXX:               return "c++";
294   case IK_LLVM_IR:           return "ir";
295   case IK_ObjC:              return "objective-c";
296   case IK_ObjCXX:            return "objective-c++";
297   case IK_OpenCL:            return "cl";
298   case IK_PreprocessedC:     return "cpp-output";
299   case IK_PreprocessedCXX:   return "c++-cpp-output";
300   case IK_PreprocessedObjC:  return "objective-c-cpp-output";
301   case IK_PreprocessedObjCXX:return "objective-c++-cpp-output";
302   }
303 
304   llvm_unreachable("Unexpected language kind!");
305   return 0;
306 }
307 
308 static const char *getActionName(frontend::ActionKind Kind) {
309   switch (Kind) {
310   case frontend::PluginAction:
311   case frontend::InheritanceView:
312     llvm_unreachable("Invalid kind!");
313 
314   case frontend::ASTDump:                return "-ast-dump";
315   case frontend::ASTPrint:               return "-ast-print";
316   case frontend::ASTPrintXML:            return "-ast-print-xml";
317   case frontend::ASTView:                return "-ast-view";
318   case frontend::BoostCon:               return "-boostcon";
319   case frontend::DumpRawTokens:          return "-dump-raw-tokens";
320   case frontend::DumpTokens:             return "-dump-tokens";
321   case frontend::EmitAssembly:           return "-S";
322   case frontend::EmitBC:                 return "-emit-llvm-bc";
323   case frontend::EmitHTML:               return "-emit-html";
324   case frontend::EmitLLVM:               return "-emit-llvm";
325   case frontend::EmitLLVMOnly:           return "-emit-llvm-only";
326   case frontend::EmitCodeGenOnly:        return "-emit-codegen-only";
327   case frontend::EmitObj:                return "-emit-obj";
328   case frontend::FixIt:                  return "-fixit";
329   case frontend::GeneratePCH:            return "-emit-pch";
330   case frontend::GeneratePTH:            return "-emit-pth";
331   case frontend::InitOnly:               return "-init-only";
332   case frontend::ParseNoop:              return "-parse-noop";
333   case frontend::ParsePrintCallbacks:    return "-parse-print-callbacks";
334   case frontend::ParseSyntaxOnly:        return "-fsyntax-only";
335   case frontend::PrintDeclContext:       return "-print-decl-contexts";
336   case frontend::PrintPreprocessedInput: return "-E";
337   case frontend::RewriteMacros:          return "-rewrite-macros";
338   case frontend::RewriteObjC:            return "-rewrite-objc";
339   case frontend::RewriteTest:            return "-rewrite-test";
340   case frontend::RunAnalysis:            return "-analyze";
341   case frontend::RunPreprocessorOnly:    return "-Eonly";
342   }
343 
344   llvm_unreachable("Unexpected language kind!");
345   return 0;
346 }
347 
348 static void FrontendOptsToArgs(const FrontendOptions &Opts,
349                                std::vector<std::string> &Res) {
350   if (!Opts.DebugCodeCompletionPrinter)
351     Res.push_back("-no-code-completion-debug-printer");
352   if (Opts.DisableFree)
353     Res.push_back("-disable-free");
354   if (Opts.RelocatablePCH)
355     Res.push_back("-relocatable-pch");
356   if (Opts.ChainedPCH)
357     Res.push_back("-chained-pch");
358   if (Opts.ShowHelp)
359     Res.push_back("-help");
360   if (Opts.ShowMacrosInCodeCompletion)
361     Res.push_back("-code-completion-macros");
362   if (Opts.ShowCodePatternsInCodeCompletion)
363     Res.push_back("-code-completion-patterns");
364   if (Opts.ShowStats)
365     Res.push_back("-print-stats");
366   if (Opts.ShowTimers)
367     Res.push_back("-ftime-report");
368   if (Opts.ShowVersion)
369     Res.push_back("-version");
370 
371   bool NeedLang = false;
372   for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i)
373     if (FrontendOptions::getInputKindForExtension(Opts.Inputs[i].second) !=
374         Opts.Inputs[i].first)
375       NeedLang = true;
376   if (NeedLang) {
377     Res.push_back("-x");
378     Res.push_back(getInputKindName(Opts.Inputs[0].first));
379   }
380   for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) {
381     assert((!NeedLang || Opts.Inputs[i].first == Opts.Inputs[0].first) &&
382            "Unable to represent this input vector!");
383     Res.push_back(Opts.Inputs[i].second);
384   }
385 
386   if (!Opts.OutputFile.empty()) {
387     Res.push_back("-o");
388     Res.push_back(Opts.OutputFile);
389   }
390   if (!Opts.ViewClassInheritance.empty()) {
391     Res.push_back("-cxx-inheritance-view");
392     Res.push_back(Opts.ViewClassInheritance);
393   }
394   if (!Opts.CodeCompletionAt.FileName.empty()) {
395     Res.push_back("-code-completion-at");
396     Res.push_back(Opts.CodeCompletionAt.FileName + ":" +
397                   llvm::utostr(Opts.CodeCompletionAt.Line) + ":" +
398                   llvm::utostr(Opts.CodeCompletionAt.Column));
399   }
400   if (Opts.ProgramAction != frontend::InheritanceView &&
401       Opts.ProgramAction != frontend::PluginAction)
402     Res.push_back(getActionName(Opts.ProgramAction));
403   if (!Opts.ActionName.empty()) {
404     Res.push_back("-plugin");
405     Res.push_back(Opts.ActionName);
406     for(unsigned i = 0, e = Opts.PluginArgs.size(); i != e; ++i) {
407       Res.push_back("-plugin-arg-" + Opts.ActionName);
408       Res.push_back(Opts.PluginArgs[i]);
409     }
410   }
411   for (unsigned i = 0, e = Opts.Plugins.size(); i != e; ++i) {
412     Res.push_back("-load");
413     Res.push_back(Opts.Plugins[i]);
414   }
415   for (unsigned i = 0, e = Opts.ASTMergeFiles.size(); i != e; ++i) {
416     Res.push_back("-ast-merge");
417     Res.push_back(Opts.ASTMergeFiles[i]);
418   }
419   for (unsigned i = 0, e = Opts.LLVMArgs.size(); i != e; ++i) {
420     Res.push_back("-mllvm");
421     Res.push_back(Opts.LLVMArgs[i]);
422   }
423 }
424 
425 static void HeaderSearchOptsToArgs(const HeaderSearchOptions &Opts,
426                                    std::vector<std::string> &Res) {
427   if (Opts.Sysroot != "/") {
428     Res.push_back("-isysroot");
429     Res.push_back(Opts.Sysroot);
430   }
431 
432   /// User specified include entries.
433   for (unsigned i = 0, e = Opts.UserEntries.size(); i != e; ++i) {
434     const HeaderSearchOptions::Entry &E = Opts.UserEntries[i];
435     if (E.IsFramework && (E.Group != frontend::Angled || !E.IsUserSupplied))
436       llvm::report_fatal_error("Invalid option set!");
437     if (E.IsUserSupplied) {
438       if (E.Group == frontend::After) {
439         Res.push_back("-idirafter");
440       } else if (E.Group == frontend::Quoted) {
441         Res.push_back("-iquote");
442       } else if (E.Group == frontend::System) {
443         Res.push_back("-isystem");
444       } else {
445         assert(E.Group == frontend::Angled && "Invalid group!");
446         Res.push_back(E.IsFramework ? "-F" : "-I");
447       }
448     } else {
449       if (E.Group != frontend::Angled && E.Group != frontend::System)
450         llvm::report_fatal_error("Invalid option set!");
451       Res.push_back(E.Group == frontend::Angled ? "-iwithprefixbefore" :
452                     "-iwithprefix");
453     }
454     Res.push_back(E.Path);
455   }
456 
457   if (!Opts.EnvIncPath.empty()) {
458     // FIXME: Provide an option for this, and move env detection to driver.
459     llvm::report_fatal_error("Not yet implemented!");
460   }
461   if (!Opts.CEnvIncPath.empty()) {
462     // FIXME: Provide an option for this, and move env detection to driver.
463     llvm::report_fatal_error("Not yet implemented!");
464   }
465   if (!Opts.ObjCEnvIncPath.empty()) {
466     // FIXME: Provide an option for this, and move env detection to driver.
467     llvm::report_fatal_error("Not yet implemented!");
468   }
469   if (!Opts.CXXEnvIncPath.empty()) {
470     // FIXME: Provide an option for this, and move env detection to driver.
471     llvm::report_fatal_error("Not yet implemented!");
472   }
473   if (!Opts.ObjCXXEnvIncPath.empty()) {
474     // FIXME: Provide an option for this, and move env detection to driver.
475     llvm::report_fatal_error("Not yet implemented!");
476   }
477   if (!Opts.ResourceDir.empty()) {
478     Res.push_back("-resource-dir");
479     Res.push_back(Opts.ResourceDir);
480   }
481   if (!Opts.UseStandardIncludes)
482     Res.push_back("-nostdinc");
483   if (!Opts.UseStandardCXXIncludes)
484     Res.push_back("-nostdinc++");
485   if (Opts.Verbose)
486     Res.push_back("-v");
487 }
488 
489 static void LangOptsToArgs(const LangOptions &Opts,
490                            std::vector<std::string> &Res) {
491   LangOptions DefaultLangOpts;
492 
493   // FIXME: Need to set -std to get all the implicit options.
494 
495   // FIXME: We want to only pass options relative to the defaults, which
496   // requires constructing a target. :(
497   //
498   // It would be better to push the all target specific choices into the driver,
499   // so that everything below that was more uniform.
500 
501   if (Opts.Trigraphs)
502     Res.push_back("-trigraphs");
503   // Implicit based on the input kind:
504   //   AsmPreprocessor, CPlusPlus, ObjC1, ObjC2, OpenCL
505   // Implicit based on the input language standard:
506   //   BCPLComment, C99, CPlusPlus0x, Digraphs, GNUInline, ImplicitInt, GNUMode
507   if (Opts.DollarIdents)
508     Res.push_back("-fdollars-in-identifiers");
509   if (Opts.GNUMode && !Opts.GNUKeywords)
510     Res.push_back("-fno-gnu-keywords");
511   if (!Opts.GNUMode && Opts.GNUKeywords)
512     Res.push_back("-fgnu-keywords");
513   if (Opts.Microsoft)
514     Res.push_back("-fms-extensions");
515   if (Opts.ObjCNonFragileABI)
516     Res.push_back("-fobjc-nonfragile-abi");
517   if (Opts.ObjCNonFragileABI2)
518     Res.push_back("-fobjc-nonfragile-abi2");
519   // NoInline is implicit.
520   if (!Opts.CXXOperatorNames)
521     Res.push_back("-fno-operator-names");
522   if (Opts.PascalStrings)
523     Res.push_back("-fpascal-strings");
524   if (Opts.CatchUndefined)
525     Res.push_back("-fcatch-undefined-behavior");
526   if (Opts.WritableStrings)
527     Res.push_back("-fwritable-strings");
528   if (Opts.ConstStrings)
529     Res.push_back("-Wwrite-strings");
530   if (!Opts.LaxVectorConversions)
531     Res.push_back("-fno-lax-vector-conversions");
532   if (Opts.AltiVec)
533     Res.push_back("-faltivec");
534   if (Opts.Exceptions)
535     Res.push_back("-fexceptions");
536   if (Opts.SjLjExceptions)
537     Res.push_back("-fsjlj-exceptions");
538   if (!Opts.RTTI)
539     Res.push_back("-fno-rtti");
540   if (!Opts.NeXTRuntime)
541     Res.push_back("-fgnu-runtime");
542   if (Opts.Freestanding)
543     Res.push_back("-ffreestanding");
544   if (Opts.NoBuiltin)
545     Res.push_back("-fno-builtin");
546   if (!Opts.AssumeSaneOperatorNew)
547     Res.push_back("-fno-assume-sane-operator-new");
548   if (!Opts.ThreadsafeStatics)
549     Res.push_back("-fno-threadsafe-statics");
550   if (Opts.POSIXThreads)
551     Res.push_back("-pthread");
552   if (Opts.Blocks)
553     Res.push_back("-fblocks");
554   if (Opts.EmitAllDecls)
555     Res.push_back("-femit-all-decls");
556   if (Opts.MathErrno)
557     Res.push_back("-fmath-errno");
558   switch (Opts.getSignedOverflowBehavior()) {
559   case LangOptions::SOB_Undefined: break;
560   case LangOptions::SOB_Defined:   Res.push_back("-fwrapv"); break;
561   case LangOptions::SOB_Trapping:  Res.push_back("-ftrapv"); break;
562   }
563   if (Opts.HeinousExtensions)
564     Res.push_back("-fheinous-gnu-extensions");
565   // Optimize is implicit.
566   // OptimizeSize is implicit.
567   if (Opts.Static)
568     Res.push_back("-static-define");
569   if (Opts.DumpRecordLayouts)
570     Res.push_back("-fdump-record-layouts");
571   if (Opts.DumpVTableLayouts)
572     Res.push_back("-fdump-vtable-layouts");
573   if (Opts.NoBitFieldTypeAlign)
574     Res.push_back("-fno-bitfield-type-alignment");
575   if (Opts.SjLjExceptions)
576     Res.push_back("-fsjlj-exceptions");
577   if (Opts.PICLevel) {
578     Res.push_back("-pic-level");
579     Res.push_back(llvm::utostr(Opts.PICLevel));
580   }
581   if (Opts.ObjCGCBitmapPrint)
582     Res.push_back("-print-ivar-layout");
583   if (Opts.NoConstantCFStrings)
584     Res.push_back("-fno-constant-cfstrings");
585   if (!Opts.AccessControl)
586     Res.push_back("-fno-access-control");
587   if (!Opts.CharIsSigned)
588     Res.push_back("-fno-signed-char");
589   if (Opts.ShortWChar)
590     Res.push_back("-fshort-wchar");
591   if (!Opts.ElideConstructors)
592     Res.push_back("-fno-elide-constructors");
593   if (Opts.getGCMode() != LangOptions::NonGC) {
594     if (Opts.getGCMode() == LangOptions::HybridGC) {
595       Res.push_back("-fobjc-gc");
596     } else {
597       assert(Opts.getGCMode() == LangOptions::GCOnly && "Invalid GC mode!");
598       Res.push_back("-fobjc-gc-only");
599     }
600   }
601   if (Opts.getVisibilityMode() != LangOptions::Default) {
602     Res.push_back("-fvisibility");
603     if (Opts.getVisibilityMode() == LangOptions::Hidden) {
604       Res.push_back("hidden");
605     } else {
606       assert(Opts.getVisibilityMode() == LangOptions::Protected &&
607              "Invalid visibility!");
608       Res.push_back("protected");
609     }
610   }
611   if (Opts.InlineVisibilityHidden)
612     Res.push_back("-fvisibility-inlines-hidden");
613 
614   if (Opts.getStackProtectorMode() != 0) {
615     Res.push_back("-stack-protector");
616     Res.push_back(llvm::utostr(Opts.getStackProtectorMode()));
617   }
618   if (Opts.InstantiationDepth != DefaultLangOpts.InstantiationDepth) {
619     Res.push_back("-ftemplate-depth");
620     Res.push_back(llvm::utostr(Opts.InstantiationDepth));
621   }
622   if (!Opts.ObjCConstantStringClass.empty()) {
623     Res.push_back("-fconstant-string-class");
624     Res.push_back(Opts.ObjCConstantStringClass);
625   }
626 }
627 
628 static void PreprocessorOptsToArgs(const PreprocessorOptions &Opts,
629                                    std::vector<std::string> &Res) {
630   for (unsigned i = 0, e = Opts.Macros.size(); i != e; ++i)
631     Res.push_back(std::string(Opts.Macros[i].second ? "-U" : "-D") +
632                   Opts.Macros[i].first);
633   for (unsigned i = 0, e = Opts.Includes.size(); i != e; ++i) {
634     // FIXME: We need to avoid reincluding the implicit PCH and PTH includes.
635     Res.push_back("-include");
636     Res.push_back(Opts.Includes[i]);
637   }
638   for (unsigned i = 0, e = Opts.MacroIncludes.size(); i != e; ++i) {
639     Res.push_back("-imacros");
640     Res.push_back(Opts.MacroIncludes[i]);
641   }
642   if (!Opts.UsePredefines)
643     Res.push_back("-undef");
644   if (Opts.DetailedRecord)
645     Res.push_back("-detailed-preprocessing-record");
646   if (!Opts.ImplicitPCHInclude.empty()) {
647     Res.push_back("-include-pch");
648     Res.push_back(Opts.ImplicitPCHInclude);
649   }
650   if (!Opts.ImplicitPTHInclude.empty()) {
651     Res.push_back("-include-pth");
652     Res.push_back(Opts.ImplicitPTHInclude);
653   }
654   if (!Opts.TokenCache.empty()) {
655     if (Opts.ImplicitPTHInclude.empty()) {
656       Res.push_back("-token-cache");
657       Res.push_back(Opts.TokenCache);
658     } else
659       assert(Opts.ImplicitPTHInclude == Opts.TokenCache &&
660              "Unsupported option combination!");
661   }
662   for (unsigned i = 0, e = Opts.RemappedFiles.size(); i != e; ++i) {
663     Res.push_back("-remap-file");
664     Res.push_back(Opts.RemappedFiles[i].first + ";" +
665                   Opts.RemappedFiles[i].second);
666   }
667 }
668 
669 static void PreprocessorOutputOptsToArgs(const PreprocessorOutputOptions &Opts,
670                                          std::vector<std::string> &Res) {
671   if (!Opts.ShowCPP && !Opts.ShowMacros)
672     llvm::report_fatal_error("Invalid option combination!");
673 
674   if (Opts.ShowCPP && Opts.ShowMacros)
675     Res.push_back("-dD");
676   else if (!Opts.ShowCPP && Opts.ShowMacros)
677     Res.push_back("-dM");
678 
679   if (!Opts.ShowLineMarkers)
680     Res.push_back("-P");
681   if (Opts.ShowComments)
682     Res.push_back("-C");
683   if (Opts.ShowMacroComments)
684     Res.push_back("-CC");
685 }
686 
687 static void TargetOptsToArgs(const TargetOptions &Opts,
688                              std::vector<std::string> &Res) {
689   Res.push_back("-triple");
690   Res.push_back(Opts.Triple);
691   if (!Opts.CPU.empty()) {
692     Res.push_back("-target-cpu");
693     Res.push_back(Opts.CPU);
694   }
695   if (!Opts.ABI.empty()) {
696     Res.push_back("-target-abi");
697     Res.push_back(Opts.ABI);
698   }
699   Res.push_back("-cxx-abi");
700   Res.push_back(Opts.CXXABI);
701   for (unsigned i = 0, e = Opts.Features.size(); i != e; ++i) {
702     Res.push_back("-target-feature");
703     Res.push_back(Opts.Features[i]);
704   }
705 }
706 
707 void CompilerInvocation::toArgs(std::vector<std::string> &Res) {
708   AnalyzerOptsToArgs(getAnalyzerOpts(), Res);
709   CodeGenOptsToArgs(getCodeGenOpts(), Res);
710   DependencyOutputOptsToArgs(getDependencyOutputOpts(), Res);
711   DiagnosticOptsToArgs(getDiagnosticOpts(), Res);
712   FrontendOptsToArgs(getFrontendOpts(), Res);
713   HeaderSearchOptsToArgs(getHeaderSearchOpts(), Res);
714   LangOptsToArgs(getLangOpts(), Res);
715   PreprocessorOptsToArgs(getPreprocessorOpts(), Res);
716   PreprocessorOutputOptsToArgs(getPreprocessorOutputOpts(), Res);
717   TargetOptsToArgs(getTargetOpts(), Res);
718 }
719 
720 //===----------------------------------------------------------------------===//
721 // Deserialization (to args)
722 //===----------------------------------------------------------------------===//
723 
724 using namespace clang::driver;
725 using namespace clang::driver::cc1options;
726 
727 //
728 
729 static void ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
730                               Diagnostic &Diags) {
731   using namespace cc1options;
732 
733   Opts.AnalysisList.clear();
734 #define ANALYSIS(NAME, CMDFLAG, DESC, SCOPE) \
735   if (Args.hasArg(OPT_analysis_##NAME)) Opts.AnalysisList.push_back(NAME);
736 #include "clang/Frontend/Analyses.def"
737 
738   if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
739     llvm::StringRef Name = A->getValue(Args);
740     AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
741 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
742       .Case(CMDFLAG, NAME##Model)
743 #include "clang/Frontend/Analyses.def"
744       .Default(NumStores);
745     // FIXME: Error handling.
746     if (Value == NumStores)
747       Diags.Report(diag::err_drv_invalid_value)
748         << A->getAsString(Args) << Name;
749     else
750       Opts.AnalysisStoreOpt = Value;
751   }
752 
753   if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
754     llvm::StringRef Name = A->getValue(Args);
755     AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
756 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
757       .Case(CMDFLAG, NAME##Model)
758 #include "clang/Frontend/Analyses.def"
759       .Default(NumConstraints);
760     // FIXME: Error handling.
761     if (Value == NumConstraints)
762       Diags.Report(diag::err_drv_invalid_value)
763         << A->getAsString(Args) << Name;
764     else
765       Opts.AnalysisConstraintsOpt = Value;
766   }
767 
768   if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
769     llvm::StringRef Name = A->getValue(Args);
770     AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
771 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \
772       .Case(CMDFLAG, PD_##NAME)
773 #include "clang/Frontend/Analyses.def"
774       .Default(NUM_ANALYSIS_DIAG_CLIENTS);
775     // FIXME: Error handling.
776     if (Value == NUM_ANALYSIS_DIAG_CLIENTS)
777       Diags.Report(diag::err_drv_invalid_value)
778         << A->getAsString(Args) << Name;
779     else
780       Opts.AnalysisDiagOpt = Value;
781   }
782 
783   Opts.VisualizeEGDot = Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
784   Opts.VisualizeEGUbi = Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
785   Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
786   Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
787   Opts.AnalyzeNestedBlocks =
788     Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
789   Opts.PurgeDead = !Args.hasArg(OPT_analyzer_no_purge_dead);
790   Opts.EagerlyAssume = Args.hasArg(OPT_analyzer_eagerly_assume);
791   Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
792   Opts.EnableExperimentalChecks = Args.hasArg(OPT_analyzer_experimental_checks);
793   Opts.EnableExperimentalInternalChecks =
794     Args.hasArg(OPT_analyzer_experimental_internal_checks);
795   Opts.EnableIdempotentOperationChecker =
796     Args.hasArg(OPT_analyzer_idempotent_operation);
797   Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
798   Opts.MaxNodes = Args.getLastArgIntValue(OPT_analyzer_max_nodes, 150000,Diags);
799   Opts.MaxLoop = Args.getLastArgIntValue(OPT_analyzer_max_loop, 3, Diags);
800   Opts.InlineCall = Args.hasArg(OPT_analyzer_inline_call);
801 }
802 
803 static void ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args,
804                              Diagnostic &Diags) {
805   using namespace cc1options;
806   // -Os implies -O2
807   if (Args.hasArg(OPT_Os))
808     Opts.OptimizationLevel = 2;
809   else {
810     Opts.OptimizationLevel = Args.getLastArgIntValue(OPT_O, 0, Diags);
811     if (Opts.OptimizationLevel > 3) {
812       Diags.Report(diag::err_drv_invalid_value)
813         << Args.getLastArg(OPT_O)->getAsString(Args) << Opts.OptimizationLevel;
814       Opts.OptimizationLevel = 3;
815     }
816   }
817 
818   // We must always run at least the always inlining pass.
819   Opts.Inlining = (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
820     : CodeGenOptions::OnlyAlwaysInlining;
821 
822   Opts.DebugInfo = Args.hasArg(OPT_g);
823   Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
824   Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
825   Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
826   Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
827   Opts.NoCommon = Args.hasArg(OPT_fno_common);
828   Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
829   Opts.OptimizeSize = Args.hasArg(OPT_Os);
830   Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
831                             Args.hasArg(OPT_ffreestanding));
832   Opts.UnrollLoops = (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize);
833 
834   Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
835   Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
836   Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
837   Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model);
838   Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
839   Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim);
840   Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
841   Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
842   Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
843   Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
844   Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
845   Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
846   Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
847   Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
848 
849   Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections);
850   Opts.DataSections = Args.hasArg(OPT_fdata_sections);
851 
852   Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
853   Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
854 
855   Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
856 
857   if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
858     llvm::StringRef Name = A->getValue(Args);
859     unsigned Method = llvm::StringSwitch<unsigned>(Name)
860       .Case("legacy", CodeGenOptions::Legacy)
861       .Case("non-legacy", CodeGenOptions::NonLegacy)
862       .Case("mixed", CodeGenOptions::Mixed)
863       .Default(~0U);
864     if (Method == ~0U)
865       Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
866     else
867       Opts.ObjCDispatchMethod = Method;
868   }
869 }
870 
871 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
872                                       ArgList &Args) {
873   using namespace cc1options;
874   Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
875   Opts.Targets = Args.getAllArgValues(OPT_MT);
876   Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
877   Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
878 }
879 
880 static void ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
881                                 Diagnostic &Diags) {
882   using namespace cc1options;
883   Opts.IgnoreWarnings = Args.hasArg(OPT_w);
884   Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
885   Opts.Pedantic = Args.hasArg(OPT_pedantic);
886   Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
887   Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
888   Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics);
889   Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column);
890   Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
891   Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
892   Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
893 
894   llvm::StringRef ShowOverloads =
895     Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
896   if (ShowOverloads == "best")
897     Opts.ShowOverloads = Diagnostic::Ovl_Best;
898   else if (ShowOverloads == "all")
899     Opts.ShowOverloads = Diagnostic::Ovl_All;
900   else
901     Diags.Report(diag::err_drv_invalid_value)
902       << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
903       << ShowOverloads;
904 
905   llvm::StringRef ShowCategory =
906     Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
907   if (ShowCategory == "none")
908     Opts.ShowCategories = 0;
909   else if (ShowCategory == "id")
910     Opts.ShowCategories = 1;
911   else if (ShowCategory == "name")
912     Opts.ShowCategories = 2;
913   else
914     Diags.Report(diag::err_drv_invalid_value)
915       << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
916       << ShowCategory;
917 
918   Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
919   Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
920   Opts.BinaryOutput = Args.hasArg(OPT_fdiagnostics_binary);
921   Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags);
922   Opts.MacroBacktraceLimit
923     = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit,
924                          DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
925   Opts.TemplateBacktraceLimit
926     = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit,
927                          DiagnosticOptions::DefaultTemplateBacktraceLimit,
928                          Diags);
929   Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop,
930                                     DiagnosticOptions::DefaultTabStop, Diags);
931   if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
932     Diags.Report(diag::warn_ignoring_ftabstop_value)
933       << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
934     Opts.TabStop = DiagnosticOptions::DefaultTabStop;
935   }
936   Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags);
937   Opts.DumpBuildInformation = Args.getLastArgValue(OPT_dump_build_information);
938   Opts.Warnings = Args.getAllArgValues(OPT_W);
939 }
940 
941 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
942                                    Diagnostic &Diags) {
943   using namespace cc1options;
944   Opts.ProgramAction = frontend::ParseSyntaxOnly;
945   if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
946     switch (A->getOption().getID()) {
947     default:
948       assert(0 && "Invalid option in group!");
949     case OPT_ast_dump:
950       Opts.ProgramAction = frontend::ASTDump; break;
951     case OPT_ast_print:
952       Opts.ProgramAction = frontend::ASTPrint; break;
953     case OPT_ast_print_xml:
954       Opts.ProgramAction = frontend::ASTPrintXML; break;
955     case OPT_ast_view:
956       Opts.ProgramAction = frontend::ASTView; break;
957     case OPT_boostcon:
958       Opts.ProgramAction = frontend::BoostCon; break;
959     case OPT_dump_raw_tokens:
960       Opts.ProgramAction = frontend::DumpRawTokens; break;
961     case OPT_dump_tokens:
962       Opts.ProgramAction = frontend::DumpTokens; break;
963     case OPT_S:
964       Opts.ProgramAction = frontend::EmitAssembly; break;
965     case OPT_emit_llvm_bc:
966       Opts.ProgramAction = frontend::EmitBC; break;
967     case OPT_emit_html:
968       Opts.ProgramAction = frontend::EmitHTML; break;
969     case OPT_emit_llvm:
970       Opts.ProgramAction = frontend::EmitLLVM; break;
971     case OPT_emit_llvm_only:
972       Opts.ProgramAction = frontend::EmitLLVMOnly; break;
973     case OPT_emit_codegen_only:
974       Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
975     case OPT_emit_obj:
976       Opts.ProgramAction = frontend::EmitObj; break;
977     case OPT_fixit_EQ:
978       Opts.FixItSuffix = A->getValue(Args);
979       // fall-through!
980     case OPT_fixit:
981       Opts.ProgramAction = frontend::FixIt; break;
982     case OPT_emit_pch:
983       Opts.ProgramAction = frontend::GeneratePCH; break;
984     case OPT_emit_pth:
985       Opts.ProgramAction = frontend::GeneratePTH; break;
986     case OPT_init_only:
987       Opts.ProgramAction = frontend::InitOnly; break;
988     case OPT_parse_noop:
989       Opts.ProgramAction = frontend::ParseNoop; break;
990     case OPT_parse_print_callbacks:
991       Opts.ProgramAction = frontend::ParsePrintCallbacks; break;
992     case OPT_fsyntax_only:
993       Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
994     case OPT_print_decl_contexts:
995       Opts.ProgramAction = frontend::PrintDeclContext; break;
996     case OPT_E:
997       Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
998     case OPT_rewrite_macros:
999       Opts.ProgramAction = frontend::RewriteMacros; break;
1000     case OPT_rewrite_objc:
1001       Opts.ProgramAction = frontend::RewriteObjC; break;
1002     case OPT_rewrite_test:
1003       Opts.ProgramAction = frontend::RewriteTest; break;
1004     case OPT_analyze:
1005       Opts.ProgramAction = frontend::RunAnalysis; break;
1006     case OPT_Eonly:
1007       Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
1008     }
1009   }
1010 
1011   if (const Arg* A = Args.getLastArg(OPT_plugin)) {
1012     Opts.Plugins.push_back(A->getValue(Args,0));
1013     Opts.ProgramAction = frontend::PluginAction;
1014     Opts.ActionName = A->getValue(Args);
1015 
1016     for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg),
1017            end = Args.filtered_end(); it != end; ++it) {
1018       if ((*it)->getValue(Args, 0) == Opts.ActionName)
1019         Opts.PluginArgs.push_back((*it)->getValue(Args, 1));
1020     }
1021   }
1022 
1023   if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
1024     Opts.CodeCompletionAt =
1025       ParsedSourceLocation::FromString(A->getValue(Args));
1026     if (Opts.CodeCompletionAt.FileName.empty())
1027       Diags.Report(diag::err_drv_invalid_value)
1028         << A->getAsString(Args) << A->getValue(Args);
1029   }
1030   Opts.DebugCodeCompletionPrinter =
1031     !Args.hasArg(OPT_no_code_completion_debug_printer);
1032   Opts.DisableFree = Args.hasArg(OPT_disable_free);
1033 
1034   Opts.OutputFile = Args.getLastArgValue(OPT_o);
1035   Opts.Plugins = Args.getAllArgValues(OPT_load);
1036   Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1037   Opts.ChainedPCH = Args.hasArg(OPT_chained_pch);
1038   Opts.ShowHelp = Args.hasArg(OPT_help);
1039   Opts.ShowMacrosInCodeCompletion = Args.hasArg(OPT_code_completion_macros);
1040   Opts.ShowCodePatternsInCodeCompletion
1041     = Args.hasArg(OPT_code_completion_patterns);
1042   Opts.ShowStats = Args.hasArg(OPT_print_stats);
1043   Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1044   Opts.ShowVersion = Args.hasArg(OPT_version);
1045   Opts.ViewClassInheritance = Args.getLastArgValue(OPT_cxx_inheritance_view);
1046   Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1047   Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1048 
1049   InputKind DashX = IK_None;
1050   if (const Arg *A = Args.getLastArg(OPT_x)) {
1051     DashX = llvm::StringSwitch<InputKind>(A->getValue(Args))
1052       .Case("c", IK_C)
1053       .Case("cl", IK_OpenCL)
1054       .Case("c", IK_C)
1055       .Case("cl", IK_OpenCL)
1056       .Case("c++", IK_CXX)
1057       .Case("objective-c", IK_ObjC)
1058       .Case("objective-c++", IK_ObjCXX)
1059       .Case("cpp-output", IK_PreprocessedC)
1060       .Case("assembler-with-cpp", IK_Asm)
1061       .Case("c++-cpp-output", IK_PreprocessedCXX)
1062       .Case("objective-c-cpp-output", IK_PreprocessedObjC)
1063       .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
1064       .Case("c-header", IK_C)
1065       .Case("objective-c-header", IK_ObjC)
1066       .Case("c++-header", IK_CXX)
1067       .Case("objective-c++-header", IK_ObjCXX)
1068       .Case("ast", IK_AST)
1069       .Case("ir", IK_LLVM_IR)
1070       .Default(IK_None);
1071     if (DashX == IK_None)
1072       Diags.Report(diag::err_drv_invalid_value)
1073         << A->getAsString(Args) << A->getValue(Args);
1074   }
1075 
1076   // '-' is the default input if none is given.
1077   std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1078   Opts.Inputs.clear();
1079   if (Inputs.empty())
1080     Inputs.push_back("-");
1081   for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1082     InputKind IK = DashX;
1083     if (IK == IK_None) {
1084       IK = FrontendOptions::getInputKindForExtension(
1085         llvm::StringRef(Inputs[i]).rsplit('.').second);
1086       // FIXME: Remove this hack.
1087       if (i == 0)
1088         DashX = IK;
1089     }
1090     Opts.Inputs.push_back(std::make_pair(IK, Inputs[i]));
1091   }
1092 
1093   return DashX;
1094 }
1095 
1096 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1097                                                  void *MainAddr) {
1098   llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr);
1099 
1100   if (!P.isEmpty()) {
1101     P.eraseComponent();  // Remove /clang from foo/bin/clang
1102     P.eraseComponent();  // Remove /bin   from foo/bin
1103 
1104     // Get foo/lib/clang/<version>/include
1105     P.appendComponent("lib");
1106     P.appendComponent("clang");
1107     P.appendComponent(CLANG_VERSION_STRING);
1108   }
1109 
1110   return P.str();
1111 }
1112 
1113 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
1114   using namespace cc1options;
1115   Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1116   Opts.Verbose = Args.hasArg(OPT_v);
1117   Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1118   Opts.UseStandardIncludes = !Args.hasArg(OPT_nostdinc);
1119   Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1120   Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1121 
1122   // Add -I... and -F... options in order.
1123   for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F),
1124          ie = Args.filtered_end(); it != ie; ++it)
1125     Opts.AddPath((*it)->getValue(Args), frontend::Angled, true,
1126                  /*IsFramework=*/ (*it)->getOption().matches(OPT_F));
1127 
1128   // Add -iprefix/-iwith-prefix/-iwithprefixbefore options.
1129   llvm::StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
1130   for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix,
1131                                              OPT_iwithprefixbefore),
1132          ie = Args.filtered_end(); it != ie; ++it) {
1133     const Arg *A = *it;
1134     if (A->getOption().matches(OPT_iprefix))
1135       Prefix = A->getValue(Args);
1136     else if (A->getOption().matches(OPT_iwithprefix))
1137       Opts.AddPath(Prefix.str() + A->getValue(Args),
1138                    frontend::System, false, false);
1139     else
1140       Opts.AddPath(Prefix.str() + A->getValue(Args),
1141                    frontend::Angled, false, false);
1142   }
1143 
1144   for (arg_iterator it = Args.filtered_begin(OPT_idirafter),
1145          ie = Args.filtered_end(); it != ie; ++it)
1146     Opts.AddPath((*it)->getValue(Args), frontend::After, true, false);
1147   for (arg_iterator it = Args.filtered_begin(OPT_iquote),
1148          ie = Args.filtered_end(); it != ie; ++it)
1149     Opts.AddPath((*it)->getValue(Args), frontend::Quoted, true, false);
1150   for (arg_iterator it = Args.filtered_begin(OPT_isystem),
1151          ie = Args.filtered_end(); it != ie; ++it)
1152     Opts.AddPath((*it)->getValue(Args), frontend::System, true, false);
1153 
1154   // FIXME: Need options for the various environment variables!
1155 }
1156 
1157 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
1158                           Diagnostic &Diags) {
1159   // FIXME: Cleanup per-file based stuff.
1160 
1161   // Set some properties which depend soley on the input kind; it would be nice
1162   // to move these to the language standard, and have the driver resolve the
1163   // input kind + language standard.
1164   if (IK == IK_Asm) {
1165     Opts.AsmPreprocessor = 1;
1166   } else if (IK == IK_ObjC ||
1167              IK == IK_ObjCXX ||
1168              IK == IK_PreprocessedObjC ||
1169              IK == IK_PreprocessedObjCXX) {
1170     Opts.ObjC1 = Opts.ObjC2 = 1;
1171   }
1172 
1173   LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1174   if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
1175     LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args))
1176 #define LANGSTANDARD(id, name, desc, features) \
1177       .Case(name, LangStandard::lang_##id)
1178 #include "clang/Frontend/LangStandards.def"
1179       .Default(LangStandard::lang_unspecified);
1180     if (LangStd == LangStandard::lang_unspecified)
1181       Diags.Report(diag::err_drv_invalid_value)
1182         << A->getAsString(Args) << A->getValue(Args);
1183   }
1184 
1185   if (LangStd == LangStandard::lang_unspecified) {
1186     // Based on the base language, pick one.
1187     switch (IK) {
1188     case IK_None:
1189     case IK_AST:
1190     case IK_LLVM_IR:
1191       assert(0 && "Invalid input kind!");
1192     case IK_OpenCL:
1193       LangStd = LangStandard::lang_opencl;
1194       break;
1195     case IK_Asm:
1196     case IK_C:
1197     case IK_PreprocessedC:
1198     case IK_ObjC:
1199     case IK_PreprocessedObjC:
1200       LangStd = LangStandard::lang_gnu99;
1201       break;
1202     case IK_CXX:
1203     case IK_PreprocessedCXX:
1204     case IK_ObjCXX:
1205     case IK_PreprocessedObjCXX:
1206       LangStd = LangStandard::lang_gnucxx98;
1207       break;
1208     }
1209   }
1210 
1211   const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1212   Opts.BCPLComment = Std.hasBCPLComments();
1213   Opts.C99 = Std.isC99();
1214   Opts.CPlusPlus = Std.isCPlusPlus();
1215   Opts.CPlusPlus0x = Std.isCPlusPlus0x();
1216   Opts.Digraphs = Std.hasDigraphs();
1217   Opts.GNUMode = Std.isGNUMode();
1218   Opts.GNUInline = !Std.isC99();
1219   Opts.HexFloats = Std.hasHexFloats();
1220   Opts.ImplicitInt = Std.hasImplicitInt();
1221 
1222   // OpenCL has some additional defaults.
1223   if (LangStd == LangStandard::lang_opencl) {
1224     Opts.OpenCL = 1;
1225     Opts.AltiVec = 1;
1226     Opts.CXXOperatorNames = 1;
1227     Opts.LaxVectorConversions = 1;
1228   }
1229 
1230   // OpenCL and C++ both have bool, true, false keywords.
1231   Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1232 
1233   // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1234   // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1235   // while a subset (the non-C++ GNU keywords) is provided by GCC's
1236   // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1237   // name, as it doesn't seem a useful distinction.
1238   Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
1239                                   Opts.GNUMode);
1240 
1241   if (Opts.CPlusPlus)
1242     Opts.CXXOperatorNames = !Args.hasArg(OPT_fno_operator_names);
1243 
1244   if (Args.hasArg(OPT_fobjc_gc_only))
1245     Opts.setGCMode(LangOptions::GCOnly);
1246   else if (Args.hasArg(OPT_fobjc_gc))
1247     Opts.setGCMode(LangOptions::HybridGC);
1248 
1249   if (Args.hasArg(OPT_print_ivar_layout))
1250     Opts.ObjCGCBitmapPrint = 1;
1251   if (Args.hasArg(OPT_fno_constant_cfstrings))
1252     Opts.NoConstantCFStrings = 1;
1253 
1254   if (Args.hasArg(OPT_faltivec))
1255     Opts.AltiVec = 1;
1256 
1257   if (Args.hasArg(OPT_pthread))
1258     Opts.POSIXThreads = 1;
1259 
1260   llvm::StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default");
1261   if (Vis == "default")
1262     Opts.setVisibilityMode(LangOptions::Default);
1263   else if (Vis == "hidden")
1264     Opts.setVisibilityMode(LangOptions::Hidden);
1265   else if (Vis == "protected")
1266     Opts.setVisibilityMode(LangOptions::Protected);
1267   else
1268     Diags.Report(diag::err_drv_invalid_value)
1269       << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis;
1270 
1271   if (Args.hasArg(OPT_fvisibility_inlines_hidden))
1272     Opts.InlineVisibilityHidden = 1;
1273 
1274   if (Args.hasArg(OPT_ftrapv))
1275     Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
1276   else if (Args.hasArg(OPT_fwrapv))
1277     Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
1278 
1279   // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1280   // is specified, or -std is set to a conforming mode.
1281   Opts.Trigraphs = !Opts.GNUMode;
1282   if (Args.hasArg(OPT_trigraphs))
1283     Opts.Trigraphs = 1;
1284 
1285   Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
1286                                    OPT_fno_dollars_in_identifiers,
1287                                    !Opts.AsmPreprocessor);
1288   Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
1289   Opts.Microsoft = Args.hasArg(OPT_fms_extensions);
1290   Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
1291   Opts.ConstStrings = Args.hasArg(OPT_Wwrite_strings);
1292   if (Args.hasArg(OPT_fno_lax_vector_conversions))
1293     Opts.LaxVectorConversions = 0;
1294   if (Args.hasArg(OPT_fno_threadsafe_statics))
1295     Opts.ThreadsafeStatics = 0;
1296   Opts.Exceptions = Args.hasArg(OPT_fexceptions);
1297   Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
1298   Opts.Blocks = Args.hasArg(OPT_fblocks);
1299   Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char);
1300   Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar);
1301   Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
1302   Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
1303   Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
1304   Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
1305   Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
1306   Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
1307   Opts.MathErrno = Args.hasArg(OPT_fmath_errno);
1308   Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 1024,
1309                                                Diags);
1310   Opts.NeXTRuntime = !Args.hasArg(OPT_fgnu_runtime);
1311   Opts.ObjCConstantStringClass =
1312     Args.getLastArgValue(OPT_fconstant_string_class);
1313   Opts.ObjCNonFragileABI = Args.hasArg(OPT_fobjc_nonfragile_abi);
1314   Opts.ObjCNonFragileABI2 = Args.hasArg(OPT_fobjc_nonfragile_abi2);
1315   if (Opts.ObjCNonFragileABI2)
1316     Opts.ObjCNonFragileABI = true;
1317   Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior);
1318   Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
1319   Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags);
1320   Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
1321   Opts.Static = Args.hasArg(OPT_static_define);
1322   Opts.DumpRecordLayouts = Args.hasArg(OPT_fdump_record_layouts);
1323   Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
1324   Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
1325   Opts.OptimizeSize = 0;
1326 
1327   // FIXME: Eliminate this dependency.
1328   unsigned Opt =
1329     Args.hasArg(OPT_Os) ? 2 : Args.getLastArgIntValue(OPT_O, 0, Diags);
1330   Opts.Optimize = Opt != 0;
1331 
1332   // This is the __NO_INLINE__ define, which just depends on things like the
1333   // optimization level and -fno-inline, not actually whether the backend has
1334   // inlining enabled.
1335   //
1336   // FIXME: This is affected by other options (-fno-inline).
1337   Opts.NoInline = !Opt;
1338 
1339   unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags);
1340   switch (SSP) {
1341   default:
1342     Diags.Report(diag::err_drv_invalid_value)
1343       << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
1344     break;
1345   case 0: Opts.setStackProtectorMode(LangOptions::SSPOff); break;
1346   case 1: Opts.setStackProtectorMode(LangOptions::SSPOn);  break;
1347   case 2: Opts.setStackProtectorMode(LangOptions::SSPReq); break;
1348   }
1349 }
1350 
1351 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
1352                                   Diagnostic &Diags) {
1353   using namespace cc1options;
1354   Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
1355   Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
1356   if (const Arg *A = Args.getLastArg(OPT_token_cache))
1357       Opts.TokenCache = A->getValue(Args);
1358   else
1359     Opts.TokenCache = Opts.ImplicitPTHInclude;
1360   Opts.UsePredefines = !Args.hasArg(OPT_undef);
1361   Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
1362   // Add macros from the command line.
1363   for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U),
1364          ie = Args.filtered_end(); it != ie; ++it) {
1365     if ((*it)->getOption().matches(OPT_D))
1366       Opts.addMacroDef((*it)->getValue(Args));
1367     else
1368       Opts.addMacroUndef((*it)->getValue(Args));
1369   }
1370 
1371   Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
1372 
1373   // Add the ordered list of -includes.
1374   for (arg_iterator it = Args.filtered_begin(OPT_include, OPT_include_pch,
1375                                              OPT_include_pth),
1376          ie = Args.filtered_end(); it != ie; ++it) {
1377     const Arg *A = *it;
1378     // PCH is handled specially, we need to extra the original include path.
1379     if (A->getOption().matches(OPT_include_pch)) {
1380       std::string OriginalFile =
1381         PCHReader::getOriginalSourceFile(A->getValue(Args), Diags);
1382       if (OriginalFile.empty())
1383         continue;
1384 
1385       Opts.Includes.push_back(OriginalFile);
1386     } else
1387       Opts.Includes.push_back(A->getValue(Args));
1388   }
1389 
1390   // Include 'altivec.h' if -faltivec option present
1391   if (Args.hasArg(OPT_faltivec))
1392     Opts.Includes.push_back("altivec.h");
1393 
1394   for (arg_iterator it = Args.filtered_begin(OPT_remap_file),
1395          ie = Args.filtered_end(); it != ie; ++it) {
1396     const Arg *A = *it;
1397     std::pair<llvm::StringRef,llvm::StringRef> Split =
1398       llvm::StringRef(A->getValue(Args)).split(';');
1399 
1400     if (Split.second.empty()) {
1401       Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
1402       continue;
1403     }
1404 
1405     Opts.addRemappedFile(Split.first, Split.second);
1406   }
1407 }
1408 
1409 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
1410                                         ArgList &Args) {
1411   using namespace cc1options;
1412   Opts.ShowCPP = !Args.hasArg(OPT_dM);
1413   Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
1414   Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
1415   Opts.ShowComments = Args.hasArg(OPT_C);
1416   Opts.ShowMacroComments = Args.hasArg(OPT_CC);
1417 }
1418 
1419 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
1420   using namespace cc1options;
1421   Opts.ABI = Args.getLastArgValue(OPT_target_abi);
1422   Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi);
1423   Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
1424   Opts.Triple = Args.getLastArgValue(OPT_triple);
1425   Opts.Features = Args.getAllArgValues(OPT_target_feature);
1426 
1427   // Use the host triple if unspecified.
1428   if (Opts.Triple.empty())
1429     Opts.Triple = llvm::sys::getHostTriple();
1430 
1431   // Use the Itanium C++ ABI if unspecified.
1432   if (Opts.CXXABI.empty())
1433     Opts.CXXABI = "itanium";
1434 }
1435 
1436 //
1437 
1438 void CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
1439                                         const char **ArgBegin,
1440                                         const char **ArgEnd,
1441                                         Diagnostic &Diags) {
1442   // Parse the arguments.
1443   llvm::OwningPtr<OptTable> Opts(createCC1OptTable());
1444   unsigned MissingArgIndex, MissingArgCount;
1445   llvm::OwningPtr<InputArgList> Args(
1446     Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount));
1447 
1448   // Check for missing argument error.
1449   if (MissingArgCount)
1450     Diags.Report(diag::err_drv_missing_argument)
1451       << Args->getArgString(MissingArgIndex) << MissingArgCount;
1452 
1453   // Issue errors on unknown arguments.
1454   for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN),
1455          ie = Args->filtered_end(); it != ie; ++it)
1456     Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args);
1457 
1458   ParseAnalyzerArgs(Res.getAnalyzerOpts(), *Args, Diags);
1459   ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, Diags);
1460   ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args);
1461   ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, Diags);
1462   InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags);
1463   ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args);
1464   if (DashX != IK_AST && DashX != IK_LLVM_IR)
1465     ParseLangArgs(Res.getLangOpts(), *Args, DashX, Diags);
1466   ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, Diags);
1467   ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args);
1468   ParseTargetArgs(Res.getTargetOpts(), *Args);
1469 }
1470