Added optimization over smatch
Added optimization over smatch

hal3/vowpal_wabbit,hal3/vowpal_wabbit,hal3/vowpal_wabbit,raosudha89/vowpal_wabbit,raosudha89/vowpal_wabbit,raosudha89/vowpal_wabbit,raosudha89/vowpal_wabbit,hal3/vowpal_wabbit,hal3/vowpal_wabbit,hal3/vowpal_wabbit,raosudha89/vowpal_wabbit,hal3/vowpal_wabbit,raosudha89/vowpal_wabbit,hal3/vowpal_wabbit,hal3/vowpal_wabbit,raosudha89/vowpal_wabbit,raosudha89/vowpal_wabbit,hal3/vowpal_wabbit,raosudha89/vowpal_wabbit,raosudha89/vowpal_wabbit,hal3/vowpal_wabbit