isl_mat_variable_compression: fix use after free

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

diff --git a/isl_map.c b/isl_map.c
index 9248537..096fbc6 100644 (file)
--- a/isl_map.c
+++ b/isl_map.c
@@ -446,6 +446,7 @@ int isl_basic_map_alloc_equality(struct isl_basic_map *bmap)
                isl_seq_clr(bmap->eq[bmap->n_eq] +
                      1 + isl_basic_map_total_dim(bmap),
                      bmap->extra - bmap->n_div);
+       F_CLR(bmap, ISL_BASIC_MAP_NORMALIZED_DIVS);
        return bmap->n_eq++;
 }
 
@@ -497,6 +498,7 @@ void isl_basic_map_inequality_to_equality(
        bmap->n_ineq--;
        bmap->ineq++;
        F_CLR(bmap, ISL_BASIC_MAP_NORMALIZED);
+       F_CLR(bmap, ISL_BASIC_MAP_NORMALIZED_DIVS);
 }
 
 int isl_basic_map_alloc_inequality(struct isl_basic_map *bmap)
@@ -565,6 +567,7 @@ int isl_basic_map_alloc_div(struct isl_basic_map *bmap)
        isl_seq_clr(bmap->div[bmap->n_div] +
                      1 + 1 + isl_basic_map_total_dim(bmap),
                      bmap->extra - bmap->n_div);
+       F_CLR(bmap, ISL_BASIC_MAP_NORMALIZED_DIVS);
        return bmap->n_div++;
 }