040000 tree b29f6cc267b037f205d46288ff2777fb9df56b41	arraylength
040000 tree be22a012c7a556c75c6f7b2faa62a4d78e960c1e	signed_int_compare
040000 tree 00e042befc28f70ba221e4ed01b91eaba299dc5e	signed_op