isl_band: use isl_union_pw_multi_aff to represent partial schedule

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

diff --git a/isl_vertices.c b/isl_vertices.c
index c60aa81..45f82c0 100644 (file)
--- a/isl_vertices.c
+++ b/isl_vertices.c
@@ -878,10 +878,10 @@ static __isl_give isl_vertices *compute_chambers(__isl_take isl_basic_set *bset,
        bset = isl_basic_set_params(bset);
 
        tab = isl_tab_from_basic_set(bset, 1);
-       isl_basic_set_free(bset);
        for (i = 0; i < bset->n_ineq; ++i)
                if (isl_tab_freeze_constraint(tab, i) < 0)
                        goto error;
+       isl_basic_set_free(bset);
 
        snap = isl_tab_snap(tab);