040000 tree 374b1f1a49956a89ea206c3bab871301125d6401	arraylength
040000 tree bb9ccb3012ea4bf00ad449ace7e6db79fcb0657c	signed_int_compare
040000 tree b9e4f80e6456028f5a6db3deaa2afef9336104fa	signed_op