int n_sub;
isl_ctx *ctx;
struct isl_upoly **subs;
- isl_mat *mat;
+ isl_mat *mat, *diag;
qp = isl_qpolynomial_cow(qp);
if (!qp || !morph)
isl_upoly_free(subs[i]);
free(subs);
- mat = isl_mat_diagonal(isl_mat_identity(ctx, 1), isl_mat_copy(morph->inv));
- mat = isl_mat_diagonal(mat, isl_mat_identity(ctx, qp->div->n_row));
+ diag = isl_mat_diag(ctx, 1, morph->inv->row[0][0]);
+ mat = isl_mat_diagonal(diag, isl_mat_copy(morph->inv));
+ diag = isl_mat_diag(ctx, qp->div->n_row, morph->inv->row[0][0]);
+ mat = isl_mat_diagonal(mat, diag);
qp->div = isl_mat_product(qp->div, mat);
isl_space_free(qp->dim);
qp->dim = isl_space_copy(morph->ran->dim);