isl_qpolynomial_drop_dims: properly handle nested spaces

For consistency, we remove the nesting even if n == 0.

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>

diff --git a/isl_polynomial.c b/isl_polynomial.c
index a2b9602..ec973cc 100644 (file)
--- a/isl_polynomial.c
+++ b/isl_polynomial.c
@@ -2312,7 +2312,7 @@ __isl_give isl_qpolynomial *isl_qpolynomial_drop_dims(
 {
        if (!qp)
                return NULL;
-       if (n == 0 && !isl_dim_get_tuple_name(qp->dim, type))
+       if (n == 0 && !isl_dim_is_named_or_nested(qp->dim, type))
                return qp;
 
        qp = isl_qpolynomial_cow(qp);