CompilerInvocation.cpp revision 210299 
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"
29using namespace clang;
30
31static 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
41static 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
51static 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
61static 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
75static 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
119static 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
208static 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
224static 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
287static 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
308static 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
348static 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
425static 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
489static 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.FormatExtensions)
545    Res.push_back("-fformat-extensions");
546  if (Opts.NoBuiltin)
547    Res.push_back("-fno-builtin");
548  if (!Opts.AssumeSaneOperatorNew)
549    Res.push_back("-fno-assume-sane-operator-new");
550  if (!Opts.ThreadsafeStatics)
551    Res.push_back("-fno-threadsafe-statics");
552  if (Opts.POSIXThreads)
553    Res.push_back("-pthread");
554  if (Opts.Blocks)
555    Res.push_back("-fblocks");
556  if (Opts.EmitAllDecls)
557    Res.push_back("-femit-all-decls");
558  if (Opts.MathErrno)
559    Res.push_back("-fmath-errno");
560  switch (Opts.getSignedOverflowBehavior()) {
561  case LangOptions::SOB_Undefined: break;
562  case LangOptions::SOB_Defined:   Res.push_back("-fwrapv"); break;
563  case LangOptions::SOB_Trapping:  Res.push_back("-ftrapv"); break;
564  }
565  if (Opts.HeinousExtensions)
566    Res.push_back("-fheinous-gnu-extensions");
567  // Optimize is implicit.
568  // OptimizeSize is implicit.
569  if (Opts.Static)
570    Res.push_back("-static-define");
571  if (Opts.DumpRecordLayouts)
572    Res.push_back("-fdump-record-layouts");
573  if (Opts.DumpVTableLayouts)
574    Res.push_back("-fdump-vtable-layouts");
575  if (Opts.NoBitFieldTypeAlign)
576    Res.push_back("-fno-bitfield-type-alignment");
577  if (Opts.SjLjExceptions)
578    Res.push_back("-fsjlj-exceptions");
579  if (Opts.PICLevel) {
580    Res.push_back("-pic-level");
581    Res.push_back(llvm::utostr(Opts.PICLevel));
582  }
583  if (Opts.ObjCGCBitmapPrint)
584    Res.push_back("-print-ivar-layout");
585  if (Opts.NoConstantCFStrings)
586    Res.push_back("-fno-constant-cfstrings");
587  if (!Opts.AccessControl)
588    Res.push_back("-fno-access-control");
589  if (!Opts.CharIsSigned)
590    Res.push_back("-fno-signed-char");
591  if (Opts.ShortWChar)
592    Res.push_back("-fshort-wchar");
593  if (!Opts.ElideConstructors)
594    Res.push_back("-fno-elide-constructors");
595  if (Opts.getGCMode() != LangOptions::NonGC) {
596    if (Opts.getGCMode() == LangOptions::HybridGC) {
597      Res.push_back("-fobjc-gc");
598    } else {
599      assert(Opts.getGCMode() == LangOptions::GCOnly && "Invalid GC mode!");
600      Res.push_back("-fobjc-gc-only");
601    }
602  }
603  if (Opts.getVisibilityMode() != LangOptions::Default) {
604    Res.push_back("-fvisibility");
605    if (Opts.getVisibilityMode() == LangOptions::Hidden) {
606      Res.push_back("hidden");
607    } else {
608      assert(Opts.getVisibilityMode() == LangOptions::Protected &&
609             "Invalid visibility!");
610      Res.push_back("protected");
611    }
612  }
613  if (Opts.InlineVisibilityHidden)
614    Res.push_back("-fvisibility-inlines-hidden");
615
616  if (Opts.getStackProtectorMode() != 0) {
617    Res.push_back("-stack-protector");
618    Res.push_back(llvm::utostr(Opts.getStackProtectorMode()));
619  }
620  if (Opts.InstantiationDepth != DefaultLangOpts.InstantiationDepth) {
621    Res.push_back("-ftemplate-depth");
622    Res.push_back(llvm::utostr(Opts.InstantiationDepth));
623  }
624  if (!Opts.ObjCConstantStringClass.empty()) {
625    Res.push_back("-fconstant-string-class");
626    Res.push_back(Opts.ObjCConstantStringClass);
627  }
628}
629
630static void PreprocessorOptsToArgs(const PreprocessorOptions &Opts,
631                                   std::vector<std::string> &Res) {
632  for (unsigned i = 0, e = Opts.Macros.size(); i != e; ++i)
633    Res.push_back(std::string(Opts.Macros[i].second ? "-U" : "-D") +
634                  Opts.Macros[i].first);
635  for (unsigned i = 0, e = Opts.Includes.size(); i != e; ++i) {
636    // FIXME: We need to avoid reincluding the implicit PCH and PTH includes.
637    Res.push_back("-include");
638    Res.push_back(Opts.Includes[i]);
639  }
640  for (unsigned i = 0, e = Opts.MacroIncludes.size(); i != e; ++i) {
641    Res.push_back("-imacros");
642    Res.push_back(Opts.MacroIncludes[i]);
643  }
644  if (!Opts.UsePredefines)
645    Res.push_back("-undef");
646  if (Opts.DetailedRecord)
647    Res.push_back("-detailed-preprocessing-record");
648  if (!Opts.ImplicitPCHInclude.empty()) {
649    Res.push_back("-include-pch");
650    Res.push_back(Opts.ImplicitPCHInclude);
651  }
652  if (!Opts.ImplicitPTHInclude.empty()) {
653    Res.push_back("-include-pth");
654    Res.push_back(Opts.ImplicitPTHInclude);
655  }
656  if (!Opts.TokenCache.empty()) {
657    if (Opts.ImplicitPTHInclude.empty()) {
658      Res.push_back("-token-cache");
659      Res.push_back(Opts.TokenCache);
660    } else
661      assert(Opts.ImplicitPTHInclude == Opts.TokenCache &&
662             "Unsupported option combination!");
663  }
664  for (unsigned i = 0, e = Opts.RemappedFiles.size(); i != e; ++i) {
665    Res.push_back("-remap-file");
666    Res.push_back(Opts.RemappedFiles[i].first + ";" +
667                  Opts.RemappedFiles[i].second);
668  }
669}
670
671static void PreprocessorOutputOptsToArgs(const PreprocessorOutputOptions &Opts,
672                                         std::vector<std::string> &Res) {
673  if (!Opts.ShowCPP && !Opts.ShowMacros)
674    llvm::report_fatal_error("Invalid option combination!");
675
676  if (Opts.ShowCPP && Opts.ShowMacros)
677    Res.push_back("-dD");
678  else if (!Opts.ShowCPP && Opts.ShowMacros)
679    Res.push_back("-dM");
680
681  if (!Opts.ShowLineMarkers)
682    Res.push_back("-P");
683  if (Opts.ShowComments)
684    Res.push_back("-C");
685  if (Opts.ShowMacroComments)
686    Res.push_back("-CC");
687}
688
689static void TargetOptsToArgs(const TargetOptions &Opts,
690                             std::vector<std::string> &Res) {
691  Res.push_back("-triple");
692  Res.push_back(Opts.Triple);
693  if (!Opts.CPU.empty()) {
694    Res.push_back("-target-cpu");
695    Res.push_back(Opts.CPU);
696  }
697  if (!Opts.ABI.empty()) {
698    Res.push_back("-target-abi");
699    Res.push_back(Opts.ABI);
700  }
701  Res.push_back("-cxx-abi");
702  Res.push_back(Opts.CXXABI);
703  for (unsigned i = 0, e = Opts.Features.size(); i != e; ++i) {
704    Res.push_back("-target-feature");
705    Res.push_back(Opts.Features[i]);
706  }
707}
708
709void CompilerInvocation::toArgs(std::vector<std::string> &Res) {
710  AnalyzerOptsToArgs(getAnalyzerOpts(), Res);
711  CodeGenOptsToArgs(getCodeGenOpts(), Res);
712  DependencyOutputOptsToArgs(getDependencyOutputOpts(), Res);
713  DiagnosticOptsToArgs(getDiagnosticOpts(), Res);
714  FrontendOptsToArgs(getFrontendOpts(), Res);
715  HeaderSearchOptsToArgs(getHeaderSearchOpts(), Res);
716  LangOptsToArgs(getLangOpts(), Res);
717  PreprocessorOptsToArgs(getPreprocessorOpts(), Res);
718  PreprocessorOutputOptsToArgs(getPreprocessorOutputOpts(), Res);
719  TargetOptsToArgs(getTargetOpts(), Res);
720}
721
722//===----------------------------------------------------------------------===//
723// Deserialization (to args)
724//===----------------------------------------------------------------------===//
725
726using namespace clang::driver;
727using namespace clang::driver::cc1options;
728
729//
730
731static void ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
732                              Diagnostic &Diags) {
733  using namespace cc1options;
734
735  Opts.AnalysisList.clear();
736#define ANALYSIS(NAME, CMDFLAG, DESC, SCOPE) \
737  if (Args.hasArg(OPT_analysis_##NAME)) Opts.AnalysisList.push_back(NAME);
738#include "clang/Frontend/Analyses.def"
739
740  if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
741    llvm::StringRef Name = A->getValue(Args);
742    AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
743#define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
744      .Case(CMDFLAG, NAME##Model)
745#include "clang/Frontend/Analyses.def"
746      .Default(NumStores);
747    // FIXME: Error handling.
748    if (Value == NumStores)
749      Diags.Report(diag::err_drv_invalid_value)
750        << A->getAsString(Args) << Name;
751    else
752      Opts.AnalysisStoreOpt = Value;
753  }
754
755  if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
756    llvm::StringRef Name = A->getValue(Args);
757    AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
758#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
759      .Case(CMDFLAG, NAME##Model)
760#include "clang/Frontend/Analyses.def"
761      .Default(NumConstraints);
762    // FIXME: Error handling.
763    if (Value == NumConstraints)
764      Diags.Report(diag::err_drv_invalid_value)
765        << A->getAsString(Args) << Name;
766    else
767      Opts.AnalysisConstraintsOpt = Value;
768  }
769
770  if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
771    llvm::StringRef Name = A->getValue(Args);
772    AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
773#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \
774      .Case(CMDFLAG, PD_##NAME)
775#include "clang/Frontend/Analyses.def"
776      .Default(NUM_ANALYSIS_DIAG_CLIENTS);
777    // FIXME: Error handling.
778    if (Value == NUM_ANALYSIS_DIAG_CLIENTS)
779      Diags.Report(diag::err_drv_invalid_value)
780        << A->getAsString(Args) << Name;
781    else
782      Opts.AnalysisDiagOpt = Value;
783  }
784
785  Opts.VisualizeEGDot = Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
786  Opts.VisualizeEGUbi = Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
787  Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
788  Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
789  Opts.AnalyzeNestedBlocks =
790    Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
791  Opts.PurgeDead = !Args.hasArg(OPT_analyzer_no_purge_dead);
792  Opts.EagerlyAssume = Args.hasArg(OPT_analyzer_eagerly_assume);
793  Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
794  Opts.EnableExperimentalChecks = Args.hasArg(OPT_analyzer_experimental_checks);
795  Opts.EnableExperimentalInternalChecks =
796    Args.hasArg(OPT_analyzer_experimental_internal_checks);
797  Opts.EnableIdempotentOperationChecker =
798    Args.hasArg(OPT_analyzer_idempotent_operation);
799  Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
800  Opts.MaxNodes = Args.getLastArgIntValue(OPT_analyzer_max_nodes, 150000,Diags);
801  Opts.MaxLoop = Args.getLastArgIntValue(OPT_analyzer_max_loop, 3, Diags);
802  Opts.InlineCall = Args.hasArg(OPT_analyzer_inline_call);
803}
804
805static void ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args,
806                             Diagnostic &Diags) {
807  using namespace cc1options;
808  // -Os implies -O2
809  if (Args.hasArg(OPT_Os))
810    Opts.OptimizationLevel = 2;
811  else {
812    Opts.OptimizationLevel = Args.getLastArgIntValue(OPT_O, 0, Diags);
813    if (Opts.OptimizationLevel > 3) {
814      Diags.Report(diag::err_drv_invalid_value)
815        << Args.getLastArg(OPT_O)->getAsString(Args) << Opts.OptimizationLevel;
816      Opts.OptimizationLevel = 3;
817    }
818  }
819
820  // We must always run at least the always inlining pass.
821  Opts.Inlining = (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
822    : CodeGenOptions::OnlyAlwaysInlining;
823
824  Opts.DebugInfo = Args.hasArg(OPT_g);
825  Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
826  Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
827  Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
828  Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
829  Opts.NoCommon = Args.hasArg(OPT_fno_common);
830  Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
831  Opts.OptimizeSize = Args.hasArg(OPT_Os);
832  Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
833                            Args.hasArg(OPT_ffreestanding));
834  Opts.UnrollLoops = (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize);
835
836  Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
837  Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
838  Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
839  Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model);
840  Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
841  Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim);
842  Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
843  Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
844  Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
845  Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
846  Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
847  Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
848  Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
849  Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
850
851  Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections);
852  Opts.DataSections = Args.hasArg(OPT_fdata_sections);
853
854  Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
855  Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
856
857  Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
858
859  if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
860    llvm::StringRef Name = A->getValue(Args);
861    unsigned Method = llvm::StringSwitch<unsigned>(Name)
862      .Case("legacy", CodeGenOptions::Legacy)
863      .Case("non-legacy", CodeGenOptions::NonLegacy)
864      .Case("mixed", CodeGenOptions::Mixed)
865      .Default(~0U);
866    if (Method == ~0U)
867      Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
868    else
869      Opts.ObjCDispatchMethod = Method;
870  }
871}
872
873static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
874                                      ArgList &Args) {
875  using namespace cc1options;
876  Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
877  Opts.Targets = Args.getAllArgValues(OPT_MT);
878  Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
879  Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
880}
881
882static void ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
883                                Diagnostic &Diags) {
884  using namespace cc1options;
885  Opts.IgnoreWarnings = Args.hasArg(OPT_w);
886  Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
887  Opts.Pedantic = Args.hasArg(OPT_pedantic);
888  Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
889  Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
890  Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics);
891  Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column);
892  Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
893  Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
894  Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
895
896  llvm::StringRef ShowOverloads =
897    Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
898  if (ShowOverloads == "best")
899    Opts.ShowOverloads = Diagnostic::Ovl_Best;
900  else if (ShowOverloads == "all")
901    Opts.ShowOverloads = Diagnostic::Ovl_All;
902  else
903    Diags.Report(diag::err_drv_invalid_value)
904      << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
905      << ShowOverloads;
906
907  llvm::StringRef ShowCategory =
908    Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
909  if (ShowCategory == "none")
910    Opts.ShowCategories = 0;
911  else if (ShowCategory == "id")
912    Opts.ShowCategories = 1;
913  else if (ShowCategory == "name")
914    Opts.ShowCategories = 2;
915  else
916    Diags.Report(diag::err_drv_invalid_value)
917      << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
918      << ShowCategory;
919
920  Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
921  Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
922  Opts.BinaryOutput = Args.hasArg(OPT_fdiagnostics_binary);
923  Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags);
924  Opts.MacroBacktraceLimit
925    = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit,
926                         DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
927  Opts.TemplateBacktraceLimit
928    = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit,
929                         DiagnosticOptions::DefaultTemplateBacktraceLimit,
930                         Diags);
931  Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop,
932                                    DiagnosticOptions::DefaultTabStop, Diags);
933  if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
934    Diags.Report(diag::warn_ignoring_ftabstop_value)
935      << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
936    Opts.TabStop = DiagnosticOptions::DefaultTabStop;
937  }
938  Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags);
939  Opts.DumpBuildInformation = Args.getLastArgValue(OPT_dump_build_information);
940  Opts.Warnings = Args.getAllArgValues(OPT_W);
941}
942
943static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
944                                   Diagnostic &Diags) {
945  using namespace cc1options;
946  Opts.ProgramAction = frontend::ParseSyntaxOnly;
947  if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
948    switch (A->getOption().getID()) {
949    default:
950      assert(0 && "Invalid option in group!");
951    case OPT_ast_dump:
952      Opts.ProgramAction = frontend::ASTDump; break;
953    case OPT_ast_print:
954      Opts.ProgramAction = frontend::ASTPrint; break;
955    case OPT_ast_print_xml:
956      Opts.ProgramAction = frontend::ASTPrintXML; break;
957    case OPT_ast_view:
958      Opts.ProgramAction = frontend::ASTView; break;
959    case OPT_boostcon:
960      Opts.ProgramAction = frontend::BoostCon; break;
961    case OPT_dump_raw_tokens:
962      Opts.ProgramAction = frontend::DumpRawTokens; break;
963    case OPT_dump_tokens:
964      Opts.ProgramAction = frontend::DumpTokens; break;
965    case OPT_S:
966      Opts.ProgramAction = frontend::EmitAssembly; break;
967    case OPT_emit_llvm_bc:
968      Opts.ProgramAction = frontend::EmitBC; break;
969    case OPT_emit_html:
970      Opts.ProgramAction = frontend::EmitHTML; break;
971    case OPT_emit_llvm:
972      Opts.ProgramAction = frontend::EmitLLVM; break;
973    case OPT_emit_llvm_only:
974      Opts.ProgramAction = frontend::EmitLLVMOnly; break;
975    case OPT_emit_codegen_only:
976      Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
977    case OPT_emit_obj:
978      Opts.ProgramAction = frontend::EmitObj; break;
979    case OPT_fixit_EQ:
980      Opts.FixItSuffix = A->getValue(Args);
981      // fall-through!
982    case OPT_fixit:
983      Opts.ProgramAction = frontend::FixIt; break;
984    case OPT_emit_pch:
985      Opts.ProgramAction = frontend::GeneratePCH; break;
986    case OPT_emit_pth:
987      Opts.ProgramAction = frontend::GeneratePTH; break;
988    case OPT_init_only:
989      Opts.ProgramAction = frontend::InitOnly; break;
990    case OPT_parse_noop:
991      Opts.ProgramAction = frontend::ParseNoop; break;
992    case OPT_parse_print_callbacks:
993      Opts.ProgramAction = frontend::ParsePrintCallbacks; break;
994    case OPT_fsyntax_only:
995      Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
996    case OPT_print_decl_contexts:
997      Opts.ProgramAction = frontend::PrintDeclContext; break;
998    case OPT_E:
999      Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
1000    case OPT_rewrite_macros:
1001      Opts.ProgramAction = frontend::RewriteMacros; break;
1002    case OPT_rewrite_objc:
1003      Opts.ProgramAction = frontend::RewriteObjC; break;
1004    case OPT_rewrite_test:
1005      Opts.ProgramAction = frontend::RewriteTest; break;
1006    case OPT_analyze:
1007      Opts.ProgramAction = frontend::RunAnalysis; break;
1008    case OPT_Eonly:
1009      Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
1010    }
1011  }
1012
1013  if (const Arg* A = Args.getLastArg(OPT_plugin)) {
1014    Opts.Plugins.push_back(A->getValue(Args,0));
1015    Opts.ProgramAction = frontend::PluginAction;
1016    Opts.ActionName = A->getValue(Args);
1017
1018    for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg),
1019           end = Args.filtered_end(); it != end; ++it) {
1020      if ((*it)->getValue(Args, 0) == Opts.ActionName)
1021        Opts.PluginArgs.push_back((*it)->getValue(Args, 1));
1022    }
1023  }
1024
1025  if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
1026    Opts.CodeCompletionAt =
1027      ParsedSourceLocation::FromString(A->getValue(Args));
1028    if (Opts.CodeCompletionAt.FileName.empty())
1029      Diags.Report(diag::err_drv_invalid_value)
1030        << A->getAsString(Args) << A->getValue(Args);
1031  }
1032  Opts.DebugCodeCompletionPrinter =
1033    !Args.hasArg(OPT_no_code_completion_debug_printer);
1034  Opts.DisableFree = Args.hasArg(OPT_disable_free);
1035
1036  Opts.OutputFile = Args.getLastArgValue(OPT_o);
1037  Opts.Plugins = Args.getAllArgValues(OPT_load);
1038  Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1039  Opts.ChainedPCH = Args.hasArg(OPT_chained_pch);
1040  Opts.ShowHelp = Args.hasArg(OPT_help);
1041  Opts.ShowMacrosInCodeCompletion = Args.hasArg(OPT_code_completion_macros);
1042  Opts.ShowCodePatternsInCodeCompletion
1043    = Args.hasArg(OPT_code_completion_patterns);
1044  Opts.ShowStats = Args.hasArg(OPT_print_stats);
1045  Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1046  Opts.ShowVersion = Args.hasArg(OPT_version);
1047  Opts.ViewClassInheritance = Args.getLastArgValue(OPT_cxx_inheritance_view);
1048  Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1049  Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1050
1051  InputKind DashX = IK_None;
1052  if (const Arg *A = Args.getLastArg(OPT_x)) {
1053    DashX = llvm::StringSwitch<InputKind>(A->getValue(Args))
1054      .Case("c", IK_C)
1055      .Case("cl", IK_OpenCL)
1056      .Case("c", IK_C)
1057      .Case("cl", IK_OpenCL)
1058      .Case("c++", IK_CXX)
1059      .Case("objective-c", IK_ObjC)
1060      .Case("objective-c++", IK_ObjCXX)
1061      .Case("cpp-output", IK_PreprocessedC)
1062      .Case("assembler-with-cpp", IK_Asm)
1063      .Case("c++-cpp-output", IK_PreprocessedCXX)
1064      .Case("objective-c-cpp-output", IK_PreprocessedObjC)
1065      .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
1066      .Case("c-header", IK_C)
1067      .Case("objective-c-header", IK_ObjC)
1068      .Case("c++-header", IK_CXX)
1069      .Case("objective-c++-header", IK_ObjCXX)
1070      .Case("ast", IK_AST)
1071      .Case("ir", IK_LLVM_IR)
1072      .Default(IK_None);
1073    if (DashX == IK_None)
1074      Diags.Report(diag::err_drv_invalid_value)
1075        << A->getAsString(Args) << A->getValue(Args);
1076  }
1077
1078  // '-' is the default input if none is given.
1079  std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1080  Opts.Inputs.clear();
1081  if (Inputs.empty())
1082    Inputs.push_back("-");
1083  for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1084    InputKind IK = DashX;
1085    if (IK == IK_None) {
1086      IK = FrontendOptions::getInputKindForExtension(
1087        llvm::StringRef(Inputs[i]).rsplit('.').second);
1088      // FIXME: Remove this hack.
1089      if (i == 0)
1090        DashX = IK;
1091    }
1092    Opts.Inputs.push_back(std::make_pair(IK, Inputs[i]));
1093  }
1094
1095  return DashX;
1096}
1097
1098std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1099                                                 void *MainAddr) {
1100  llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr);
1101
1102  if (!P.isEmpty()) {
1103    P.eraseComponent();  // Remove /clang from foo/bin/clang
1104    P.eraseComponent();  // Remove /bin   from foo/bin
1105
1106    // Get foo/lib/clang/<version>/include
1107    P.appendComponent("lib");
1108    P.appendComponent("clang");
1109    P.appendComponent(CLANG_VERSION_STRING);
1110  }
1111
1112  return P.str();
1113}
1114
1115static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
1116  using namespace cc1options;
1117  Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1118  Opts.Verbose = Args.hasArg(OPT_v);
1119  Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1120  Opts.UseStandardIncludes = !Args.hasArg(OPT_nostdinc);
1121  Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1122  Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1123
1124  // Add -I... and -F... options in order.
1125  for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F),
1126         ie = Args.filtered_end(); it != ie; ++it)
1127    Opts.AddPath((*it)->getValue(Args), frontend::Angled, true,
1128                 /*IsFramework=*/ (*it)->getOption().matches(OPT_F));
1129
1130  // Add -iprefix/-iwith-prefix/-iwithprefixbefore options.
1131  llvm::StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
1132  for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix,
1133                                             OPT_iwithprefixbefore),
1134         ie = Args.filtered_end(); it != ie; ++it) {
1135    const Arg *A = *it;
1136    if (A->getOption().matches(OPT_iprefix))
1137      Prefix = A->getValue(Args);
1138    else if (A->getOption().matches(OPT_iwithprefix))
1139      Opts.AddPath(Prefix.str() + A->getValue(Args),
1140                   frontend::System, false, false);
1141    else
1142      Opts.AddPath(Prefix.str() + A->getValue(Args),
1143                   frontend::Angled, false, false);
1144  }
1145
1146  for (arg_iterator it = Args.filtered_begin(OPT_idirafter),
1147         ie = Args.filtered_end(); it != ie; ++it)
1148    Opts.AddPath((*it)->getValue(Args), frontend::After, true, false);
1149  for (arg_iterator it = Args.filtered_begin(OPT_iquote),
1150         ie = Args.filtered_end(); it != ie; ++it)
1151    Opts.AddPath((*it)->getValue(Args), frontend::Quoted, true, false);
1152  for (arg_iterator it = Args.filtered_begin(OPT_isystem),
1153         ie = Args.filtered_end(); it != ie; ++it)
1154    Opts.AddPath((*it)->getValue(Args), frontend::System, true, false);
1155
1156  // FIXME: Need options for the various environment variables!
1157}
1158
1159static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
1160                          Diagnostic &Diags) {
1161  // FIXME: Cleanup per-file based stuff.
1162
1163  // Set some properties which depend soley on the input kind; it would be nice
1164  // to move these to the language standard, and have the driver resolve the
1165  // input kind + language standard.
1166  if (IK == IK_Asm) {
1167    Opts.AsmPreprocessor = 1;
1168  } else if (IK == IK_ObjC ||
1169             IK == IK_ObjCXX ||
1170             IK == IK_PreprocessedObjC ||
1171             IK == IK_PreprocessedObjCXX) {
1172    Opts.ObjC1 = Opts.ObjC2 = 1;
1173  }
1174
1175  LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1176  if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
1177    LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args))
1178#define LANGSTANDARD(id, name, desc, features) \
1179      .Case(name, LangStandard::lang_##id)
1180#include "clang/Frontend/LangStandards.def"
1181      .Default(LangStandard::lang_unspecified);
1182    if (LangStd == LangStandard::lang_unspecified)
1183      Diags.Report(diag::err_drv_invalid_value)
1184        << A->getAsString(Args) << A->getValue(Args);
1185  }
1186
1187  if (LangStd == LangStandard::lang_unspecified) {
1188    // Based on the base language, pick one.
1189    switch (IK) {
1190    case IK_None:
1191    case IK_AST:
1192    case IK_LLVM_IR:
1193      assert(0 && "Invalid input kind!");
1194    case IK_OpenCL:
1195      LangStd = LangStandard::lang_opencl;
1196      break;
1197    case IK_Asm:
1198    case IK_C:
1199    case IK_PreprocessedC:
1200    case IK_ObjC:
1201    case IK_PreprocessedObjC:
1202      LangStd = LangStandard::lang_gnu99;
1203      break;
1204    case IK_CXX:
1205    case IK_PreprocessedCXX:
1206    case IK_ObjCXX:
1207    case IK_PreprocessedObjCXX:
1208      LangStd = LangStandard::lang_gnucxx98;
1209      break;
1210    }
1211  }
1212
1213  const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1214  Opts.BCPLComment = Std.hasBCPLComments();
1215  Opts.C99 = Std.isC99();
1216  Opts.CPlusPlus = Std.isCPlusPlus();
1217  Opts.CPlusPlus0x = Std.isCPlusPlus0x();
1218  Opts.Digraphs = Std.hasDigraphs();
1219  Opts.GNUMode = Std.isGNUMode();
1220  Opts.GNUInline = !Std.isC99();
1221  Opts.HexFloats = Std.hasHexFloats();
1222  Opts.ImplicitInt = Std.hasImplicitInt();
1223
1224  // OpenCL has some additional defaults.
1225  if (LangStd == LangStandard::lang_opencl) {
1226    Opts.OpenCL = 1;
1227    Opts.AltiVec = 1;
1228    Opts.CXXOperatorNames = 1;
1229    Opts.LaxVectorConversions = 1;
1230  }
1231
1232  // OpenCL and C++ both have bool, true, false keywords.
1233  Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1234
1235  // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1236  // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1237  // while a subset (the non-C++ GNU keywords) is provided by GCC's
1238  // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1239  // name, as it doesn't seem a useful distinction.
1240  Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
1241                                  Opts.GNUMode);
1242
1243  if (Opts.CPlusPlus)
1244    Opts.CXXOperatorNames = !Args.hasArg(OPT_fno_operator_names);
1245
1246  if (Args.hasArg(OPT_fobjc_gc_only))
1247    Opts.setGCMode(LangOptions::GCOnly);
1248  else if (Args.hasArg(OPT_fobjc_gc))
1249    Opts.setGCMode(LangOptions::HybridGC);
1250
1251  if (Args.hasArg(OPT_print_ivar_layout))
1252    Opts.ObjCGCBitmapPrint = 1;
1253  if (Args.hasArg(OPT_fno_constant_cfstrings))
1254    Opts.NoConstantCFStrings = 1;
1255
1256  if (Args.hasArg(OPT_faltivec))
1257    Opts.AltiVec = 1;
1258
1259  if (Args.hasArg(OPT_pthread))
1260    Opts.POSIXThreads = 1;
1261
1262  llvm::StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default");
1263  if (Vis == "default")
1264    Opts.setVisibilityMode(LangOptions::Default);
1265  else if (Vis == "hidden")
1266    Opts.setVisibilityMode(LangOptions::Hidden);
1267  else if (Vis == "protected")
1268    Opts.setVisibilityMode(LangOptions::Protected);
1269  else
1270    Diags.Report(diag::err_drv_invalid_value)
1271      << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis;
1272
1273  if (Args.hasArg(OPT_fvisibility_inlines_hidden))
1274    Opts.InlineVisibilityHidden = 1;
1275
1276  if (Args.hasArg(OPT_ftrapv))
1277    Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
1278  else if (Args.hasArg(OPT_fwrapv))
1279    Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
1280
1281  // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1282  // is specified, or -std is set to a conforming mode.
1283  Opts.Trigraphs = !Opts.GNUMode;
1284  if (Args.hasArg(OPT_trigraphs))
1285    Opts.Trigraphs = 1;
1286
1287  Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
1288                                   OPT_fno_dollars_in_identifiers,
1289                                   !Opts.AsmPreprocessor);
1290  Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
1291  Opts.Microsoft = Args.hasArg(OPT_fms_extensions);
1292  Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
1293  Opts.ConstStrings = Args.hasArg(OPT_Wwrite_strings);
1294  if (Args.hasArg(OPT_fno_lax_vector_conversions))
1295    Opts.LaxVectorConversions = 0;
1296  if (Args.hasArg(OPT_fno_threadsafe_statics))
1297    Opts.ThreadsafeStatics = 0;
1298  Opts.Exceptions = Args.hasArg(OPT_fexceptions);
1299  Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
1300  Opts.Blocks = Args.hasArg(OPT_fblocks);
1301  Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char);
1302  Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar);
1303  Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
1304  Opts.FormatExtensions = Args.hasArg(OPT_fformat_extensions);
1305  Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
1306  Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
1307  Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
1308  Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
1309  Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
1310  Opts.MathErrno = Args.hasArg(OPT_fmath_errno);
1311  Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 1024,
1312                                               Diags);
1313  Opts.NeXTRuntime = !Args.hasArg(OPT_fgnu_runtime);
1314  Opts.ObjCConstantStringClass =
1315    Args.getLastArgValue(OPT_fconstant_string_class);
1316  Opts.ObjCNonFragileABI = Args.hasArg(OPT_fobjc_nonfragile_abi);
1317  Opts.ObjCNonFragileABI2 = Args.hasArg(OPT_fobjc_nonfragile_abi2);
1318  if (Opts.ObjCNonFragileABI2)
1319    Opts.ObjCNonFragileABI = true;
1320  Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior);
1321  Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
1322  Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags);
1323  Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
1324  Opts.Static = Args.hasArg(OPT_static_define);
1325  Opts.DumpRecordLayouts = Args.hasArg(OPT_fdump_record_layouts);
1326  Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
1327  Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
1328  Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
1329  Opts.OptimizeSize = 0;
1330
1331  // FIXME: Eliminate this dependency.
1332  unsigned Opt =
1333    Args.hasArg(OPT_Os) ? 2 : Args.getLastArgIntValue(OPT_O, 0, Diags);
1334  Opts.Optimize = Opt != 0;
1335
1336  // This is the __NO_INLINE__ define, which just depends on things like the
1337  // optimization level and -fno-inline, not actually whether the backend has
1338  // inlining enabled.
1339  //
1340  // FIXME: This is affected by other options (-fno-inline).
1341  Opts.NoInline = !Opt;
1342
1343  unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags);
1344  switch (SSP) {
1345  default:
1346    Diags.Report(diag::err_drv_invalid_value)
1347      << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
1348    break;
1349  case 0: Opts.setStackProtectorMode(LangOptions::SSPOff); break;
1350  case 1: Opts.setStackProtectorMode(LangOptions::SSPOn);  break;
1351  case 2: Opts.setStackProtectorMode(LangOptions::SSPReq); break;
1352  }
1353}
1354
1355static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
1356                                  Diagnostic &Diags) {
1357  using namespace cc1options;
1358  Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
1359  Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
1360  if (const Arg *A = Args.getLastArg(OPT_token_cache))
1361      Opts.TokenCache = A->getValue(Args);
1362  else
1363    Opts.TokenCache = Opts.ImplicitPTHInclude;
1364  Opts.UsePredefines = !Args.hasArg(OPT_undef);
1365  Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
1366  // Add macros from the command line.
1367  for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U),
1368         ie = Args.filtered_end(); it != ie; ++it) {
1369    if ((*it)->getOption().matches(OPT_D))
1370      Opts.addMacroDef((*it)->getValue(Args));
1371    else
1372      Opts.addMacroUndef((*it)->getValue(Args));
1373  }
1374
1375  Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
1376
1377  // Add the ordered list of -includes.
1378  for (arg_iterator it = Args.filtered_begin(OPT_include, OPT_include_pch,
1379                                             OPT_include_pth),
1380         ie = Args.filtered_end(); it != ie; ++it) {
1381    const Arg *A = *it;
1382    // PCH is handled specially, we need to extra the original include path.
1383    if (A->getOption().matches(OPT_include_pch)) {
1384      std::string OriginalFile =
1385        PCHReader::getOriginalSourceFile(A->getValue(Args), Diags);
1386      if (OriginalFile.empty())
1387        continue;
1388
1389      Opts.Includes.push_back(OriginalFile);
1390    } else
1391      Opts.Includes.push_back(A->getValue(Args));
1392  }
1393
1394  // Include 'altivec.h' if -faltivec option present
1395  if (Args.hasArg(OPT_faltivec))
1396    Opts.Includes.push_back("altivec.h");
1397
1398  for (arg_iterator it = Args.filtered_begin(OPT_remap_file),
1399         ie = Args.filtered_end(); it != ie; ++it) {
1400    const Arg *A = *it;
1401    std::pair<llvm::StringRef,llvm::StringRef> Split =
1402      llvm::StringRef(A->getValue(Args)).split(';');
1403
1404    if (Split.second.empty()) {
1405      Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
1406      continue;
1407    }
1408
1409    Opts.addRemappedFile(Split.first, Split.second);
1410  }
1411}
1412
1413static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
1414                                        ArgList &Args) {
1415  using namespace cc1options;
1416  Opts.ShowCPP = !Args.hasArg(OPT_dM);
1417  Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
1418  Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
1419  Opts.ShowComments = Args.hasArg(OPT_C);
1420  Opts.ShowMacroComments = Args.hasArg(OPT_CC);
1421}
1422
1423static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
1424  using namespace cc1options;
1425  Opts.ABI = Args.getLastArgValue(OPT_target_abi);
1426  Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi);
1427  Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
1428  Opts.Triple = Args.getLastArgValue(OPT_triple);
1429  Opts.Features = Args.getAllArgValues(OPT_target_feature);
1430
1431  // Use the host triple if unspecified.
1432  if (Opts.Triple.empty())
1433    Opts.Triple = llvm::sys::getHostTriple();
1434
1435  // Use the Itanium C++ ABI if unspecified.
1436  if (Opts.CXXABI.empty())
1437    Opts.CXXABI = "itanium";
1438}
1439
1440//
1441
1442void CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
1443                                        const char **ArgBegin,
1444                                        const char **ArgEnd,
1445                                        Diagnostic &Diags) {
1446  // Parse the arguments.
1447  llvm::OwningPtr<OptTable> Opts(createCC1OptTable());
1448  unsigned MissingArgIndex, MissingArgCount;
1449  llvm::OwningPtr<InputArgList> Args(
1450    Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount));
1451
1452  // Check for missing argument error.
1453  if (MissingArgCount)
1454    Diags.Report(diag::err_drv_missing_argument)
1455      << Args->getArgString(MissingArgIndex) << MissingArgCount;
1456
1457  // Issue errors on unknown arguments.
1458  for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN),
1459         ie = Args->filtered_end(); it != ie; ++it)
1460    Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args);
1461
1462  ParseAnalyzerArgs(Res.getAnalyzerOpts(), *Args, Diags);
1463  ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, Diags);
1464  ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args);
1465  ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, Diags);
1466  InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags);
1467  ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args);
1468  if (DashX != IK_AST && DashX != IK_LLVM_IR)
1469    ParseLangArgs(Res.getLangOpts(), *Args, DashX, Diags);
1470  ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, Diags);
1471  ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args);
1472  ParseTargetArgs(Res.getTargetOpts(), *Args);
1473}
1474