040000 tree 75d6e115209973c11d0f9649967e27f68e9b89b6	arraylength
040000 tree d45f74f8e86b62bc7490e1b88a4161509e1c3edb	signed_int_compare
040000 tree 9a4014ae306350d63d56566a8ac3e087e7dc47bf	signed_op