171   void CheckDeclRef(const DeclRefExpr *DR, const Expr *Val, DeadStoreKind dsk,  in CheckDeclRef()  argument
173     if (const VarDecl *VD = dyn_cast<VarDecl>(DR->getDecl()))  in CheckDeclRef()
174       CheckVarDecl(VD, DR, Val, dsk, Live);  in CheckDeclRef()
187     const DeclRefExpr *DR;  in isIncrement()  local
189     if ((DR = dyn_cast<DeclRefExpr>(BRHS->getLHS()->IgnoreParenCasts())))  in isIncrement()
190       if (DR->getDecl() == VD)  in isIncrement()
193     if ((DR = dyn_cast<DeclRefExpr>(BRHS->getRHS()->IgnoreParenCasts())))  in isIncrement()
194       if (DR->getDecl() == VD)  in isIncrement()
214       if (DeclRefExpr *DR = dyn_cast<DeclRefExpr>(B->getLHS()))  in observeStmt()  local
215         if (VarDecl *VD = dyn_cast<VarDecl>(DR->getDecl())) {  in observeStmt()
238           CheckVarDecl(VD, DR, B->getRHS(), dsk, Live);  in observeStmt()
251       if (const DeclRefExpr *DR = dyn_cast<DeclRefExpr>(Ex))  in observeStmt()  local
252         CheckDeclRef(DR, U, DeadIncrement, Live);  in observeStmt()
351       if (DeclRefExpr *DR = dyn_cast<DeclRefExpr>(E))  in VisitUnaryOperator()  local
352         if (VarDecl *VD = dyn_cast<VarDecl>(DR->getDecl())) {  in VisitUnaryOperator()