Remove a unused member variable. Instead query the option from AnalysisManager.

llvm-svn: 80226

clang/include/clang/Analysis/PathSensitive/GRExprEngine.h

@@ -77,9 +77,6 @@ class GRExprEngine : public GRSubEngine {
   llvm::OwningPtr<GRSimpleAPICheck> BatchAuditor;
   std::vector<Checker*> Checkers;
 
-  /// PurgeDead - Remove dead bindings before processing a statement.
-  bool PurgeDead;
-  
   /// BR - The BugReporter associated with this engine.  It is important that
   //   this object be placed at the very end of member variables so that its
   //   destructor is called before the rest of the GRExprEngine is destroyed.

clang/lib/Analysis/GRExprEngine.cpp

@@ -245,8 +245,8 @@ void GRExprEngine::ProcessStmt(Stmt* S, GRStmtNodeBuilder& builder) {
     
   // Create the cleaned state.  
   SymbolReaper SymReaper(*AMgr.getLiveVariables(), SymMgr);  
-  CleanedState = PurgeDead ? StateMgr.RemoveDeadBindings(EntryNode->getState(), 
-                                                         CurrentStmt, SymReaper)
+  CleanedState = AMgr.shouldPurgeDead()
+    ? StateMgr.RemoveDeadBindings(EntryNode->getState(), CurrentStmt, SymReaper)
     : EntryNode->getState();
 
   // Process any special transfer function for dead symbols.