add isl_pw_qpolynomial_fold_insert_dims

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

diff --git a/isl_fold.c b/isl_fold.c
index e689920..65e090d 100644 (file)
--- a/isl_fold.c
+++ b/isl_fold.c
@@ -119,6 +119,37 @@ error:
        return NULL;
 }
 
+__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_insert_dims(
+       __isl_take isl_qpolynomial_fold *fold,
+       enum isl_dim_type type, unsigned first, unsigned n)
+{
+       int i;
+
+       if (!fold)
+               return NULL;
+       if (n == 0 && !isl_dim_is_named_or_nested(fold->dim, type))
+               return fold;
+
+       fold = isl_qpolynomial_fold_cow(fold);
+       if (!fold)
+               return NULL;
+       fold->dim = isl_dim_insert(fold->dim, type, first, n);
+       if (!fold->dim)
+               goto error;
+
+       for (i = 0; i < fold->n; ++i) {
+               fold->qp[i] = isl_qpolynomial_insert_dims(fold->qp[i],
+                                                           type, first, n);
+               if (!fold->qp[i])
+                       goto error;
+       }
+
+       return fold;
+error:
+       isl_qpolynomial_fold_free(fold);
+       return NULL;
+}
+
 static int isl_qpolynomial_cst_sign(__isl_keep isl_qpolynomial *qp)
 {
        struct isl_upoly_cst *cst;