+/* Return true if iterator VSI points to nothing. */
+static inline bool
+vsi_end_p (varpool_node_set_iterator vsi)
+{
+ return vsi.index >= VEC_length (varpool_node_ptr, vsi.set->nodes);
+}
+
+/* Advance iterator VSI. */
+static inline void
+vsi_next (varpool_node_set_iterator *vsi)
+{
+ vsi->index++;
+}
+
+/* Return the node pointed to by VSI. */
+static inline struct varpool_node *
+vsi_node (varpool_node_set_iterator vsi)
+{
+ return VEC_index (varpool_node_ptr, vsi.set->nodes, vsi.index);
+}
+
+/* Return an iterator to the first node in SET. */
+static inline varpool_node_set_iterator
+vsi_start (varpool_node_set set)
+{
+ varpool_node_set_iterator vsi;
+
+ vsi.set = set;
+ vsi.index = 0;
+ return vsi;
+}
+
+/* Return true if SET contains NODE. */
+static inline bool
+varpool_node_in_set_p (struct varpool_node *node, varpool_node_set set)
+{
+ varpool_node_set_iterator vsi;
+ vsi = varpool_node_set_find (set, node);
+ return !vsi_end_p (vsi);
+}
+
+/* Return number of nodes in SET. */
+static inline size_t
+varpool_node_set_size (varpool_node_set set)
+{
+ return htab_elements (set->hashtab);
+}
+