isl_map_power: coalesce domain and range

diff --git a/isl_transitive_closure.c b/isl_transitive_closure.c
index eecdbe5..74ede4d 100644 (file)
--- a/isl_transitive_closure.c
+++ b/isl_transitive_closure.c
@@ -339,7 +339,9 @@ static __isl_give isl_map *map_power(__isl_take isl_map *map, unsigned param,
                goto error);
 
        domain = isl_map_domain(isl_map_copy(map));
+       domain = isl_set_coalesce(domain);
        range = isl_map_range(isl_map_copy(map));
+       range = isl_set_coalesce(range);
        app = isl_map_from_domain_and_range(isl_set_copy(domain),
                                            isl_set_copy(range));