Add isl_union_map_gist_range

Signed-off-by: Tobias Grosser <tobias@grosser.es>
Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>

diff --git a/doc/user.pod b/doc/user.pod
index 4adedc1..e620391 100644 (file)
--- a/doc/user.pod
+++ b/doc/user.pod
@@ -2486,6 +2486,9 @@ instead.
        __isl_give isl_union_map *isl_union_map_gist_domain(
                __isl_take isl_union_map *umap,
                __isl_take isl_union_set *uset);
+       __isl_give isl_union_map *isl_union_map_gist_range(
+               __isl_take isl_union_map *umap,
+               __isl_take isl_union_set *uset);
 
 The gist operation returns a set or relation that has the
 same intersection with the context as the input set or relation.

diff --git a/include/isl/union_map.h b/include/isl/union_map.h
index 21ffa78..8054d9d 100644 (file)
--- a/include/isl/union_map.h
+++ b/include/isl/union_map.h
@@ -86,6 +86,9 @@ __isl_give isl_union_map *isl_union_map_gist_params(
 __isl_export
 __isl_give isl_union_map *isl_union_map_gist_domain(
        __isl_take isl_union_map *umap, __isl_take isl_union_set *uset);
+__isl_export
+__isl_give isl_union_map *isl_union_map_gist_range(
+       __isl_take isl_union_map *umap, __isl_take isl_union_set *uset);
 
 __isl_export
 __isl_give isl_union_map *isl_union_map_intersect_domain(

diff --git a/isl_union_map.c b/isl_union_map.c
index 445d4fe..461c504 100644 (file)
--- a/isl_union_map.c
+++ b/isl_union_map.c
@@ -936,6 +936,46 @@ __isl_give isl_union_map *isl_union_map_gist_domain(
        return gen_bin_op(umap, uset, &gist_domain_entry);
 }
 
+static int gist_range_entry(void **entry, void *user)
+{
+       struct isl_union_map_gen_bin_data *data = user;
+       uint32_t hash;
+       struct isl_hash_table_entry *entry2;
+       isl_space *space;
+       isl_map *map = *entry;
+       int empty;
+
+       space = isl_map_get_space(map);
+       space = isl_space_range(space);
+       hash = isl_space_get_hash(space);
+       entry2 = isl_hash_table_find(data->umap2->dim->ctx, &data->umap2->table,
+                                    hash, &has_dim, space, 0);
+       isl_space_free(space);
+       if (!entry2)
+               return 0;
+
+       map = isl_map_copy(map);
+       map = isl_map_gist_range(map, isl_set_copy(entry2->data));
+
+       empty = isl_map_is_empty(map);
+       if (empty < 0) {
+               isl_map_free(map);
+               return -1;
+       }
+
+       data->res = isl_union_map_add_map(data->res, map);
+
+       return 0;
+}
+
+/* Compute the gist of "umap" with respect to the range "uset".
+ */
+__isl_give isl_union_map *isl_union_map_gist_range(
+       __isl_take isl_union_map *umap, __isl_take isl_union_set *uset)
+{
+       return gen_bin_op(umap, uset, &gist_range_entry);
+}
+
 static int intersect_range_entry(void **entry, void *user)
 {
        struct isl_union_map_gen_bin_data *data = user;