add isl_map_deltas

diff --git a/include/isl_map.h b/include/isl_map.h
index 3196a93..1e656d2 100644 (file)
--- a/include/isl_map.h
+++ b/include/isl_map.h
@@ -193,6 +193,7 @@ struct isl_map *isl_map_subtract(struct isl_map *map1, struct isl_map *map2);
 struct isl_map *isl_map_fix_input_si(struct isl_map *map,
                unsigned input, int value);
 struct isl_basic_set *isl_basic_map_deltas(struct isl_basic_map *bmap);
+struct isl_set *isl_map_deltas(struct isl_map *map);
 struct isl_set *isl_map_range(struct isl_map *map);
 struct isl_basic_map *isl_map_affine_hull(struct isl_map *map);
 

diff --git a/isl_map.c b/isl_map.c
index 9a135a9..7e2c8da 100644 (file)
--- a/isl_map.c
+++ b/isl_map.c
@@ -2869,6 +2869,31 @@ error:
        return NULL;
 }
 
+/*
+ * returns range - domain
+ */
+struct isl_set *isl_map_deltas(struct isl_map *map)
+{
+       int i;
+       struct isl_set *result;
+
+       if (!map)
+               return NULL;
+
+       isl_assert(map->ctx, map->n_in == map->n_out, goto error);
+       result = isl_set_alloc(map->ctx, map->nparam, map->n_in, map->n, map->flags);
+       if (!result)
+               goto error;
+       for (i = 0; i < map->n; ++i)
+               result = isl_set_add(result,
+                         isl_basic_map_deltas(isl_basic_map_copy(map->p[i])));
+       isl_map_free(map);
+       return result;
+error:
+       isl_map_free(map);
+       return NULL;
+}
+
 /* If the only constraints a div d=floor(f/m)
  * appears in are its two defining constraints
  *