presto-main/src/main/java/io/prestosql/operator/aggregation/FloatingPointBitsConverterUtil.java/FloatingPointBitsConverterUtil/sortableIntToFloat
class FloatingPointBitsConverterUtil:    public static float sortableIntToFloat(int value)
    {
        value = value ^ (value >> 31) & Integer.MAX_VALUE;
        return Float.intBitsToFloat(value);
    }