presto-spi/src/main/java/io/prestosql/spi/type/UnscaledDecimal128Arithmetic.java/UnscaledDecimal128Arithmetic/multiplyShiftDestructive
class UnscaledDecimal128Arithmetic:    private static void multiplyShiftDestructive(Slice decimal, Slice multiplier, int rightShifts)
    {
        int[] product = new int[NUMBER_OF_INTS * 2];
        Slice multiplicationResult = Slices.wrappedIntArray(product);
        multiply256(decimal, multiplier, multiplicationResult);
        shiftRightArray8(product, rightShifts, decimal);
    }