37     const Expr *FindExpr(const Expr *Ex) {  in FindExpr()
38       if (!MatchesCriteria(Ex))  in FindExpr()
41       for (const Stmt *SubStmt : Ex->children())  in FindExpr()
46       return Ex;  in FindExpr()
49     bool MatchesCriteria(const Expr *Ex) {  in MatchesCriteria()
50       return St->getSVal(Ex, LCtx).isUndef();  in MatchesCriteria()
87       const Expr *Ex = cast<Expr>(Condition);  in checkBranchCondition()  local
93         if (PS->getStmt() == Ex)  in checkBranchCondition()
97       Ex = FindIt.FindExpr(Ex);  in checkBranchCondition()
101       bugreporter::trackNullOrUndefValue(N, Ex, *R);  in checkBranchCondition()
102       R->addRange(Ex->getSourceRange());  in checkBranchCondition()