extract isl_map_align_divs from isl_affine_hull.c

[platform/upstream/isl.git] / isl_map.c

diff --git a/isl_map.c b/isl_map.c
index 38308ae..033a1d3 100644 (file)
--- a/isl_map.c
+++ b/isl_map.c
@@ -2859,6 +2859,23 @@ error:
        return NULL;
 }
 
+struct isl_map *isl_map_align_divs(struct isl_ctx *ctx, struct isl_map *map)
+{
+       int i;
+
+       map = isl_map_compute_divs(ctx, map);
+       map = isl_map_cow(ctx, map);
+       if (!map)
+               return NULL;
+
+       for (i = 1; i < map->n; ++i)
+               map->p[0] = isl_basic_map_align_divs(ctx, map->p[0], map->p[i]);
+       for (i = 1; i < map->n; ++i)
+               map->p[i] = isl_basic_map_align_divs(ctx, map->p[i], map->p[0]);
+
+       return map;
+}
+
 static struct isl_map *add_cut_constraint(struct isl_ctx *ctx,
                struct isl_map *dst,
                struct isl_basic_map *src, isl_int *c,