+/**
+ * Remove a node from the scheduled.
+ * @param irn The node.
+ */
+static INLINE void _sched_remove(ir_node *irn)
+{
+ sched_info_t *info = get_irn_sched_info(irn);
+ list_del(&info->list);
+ INIT_LIST_HEAD(&info->list);
+ info->scheduled = 0;
+}
+
+/**
+ * Check, if the node is scheduled.
+ * @param irn The node.
+ * @return 1, if the node is scheduled, 0 if not.
+ */
+static INLINE int _sched_is_scheduled(const ir_node *irn)
+{
+ return get_irn_sched_info(irn)->scheduled;
+}
+
+/**
+ * Compare two nodes according to their position in the schedule.
+ * @param a The first node.
+ * @param b The second node.
+ * @return A number smaller, equals to or larger than 0, if a is
+ * before, the same, or after b in the schedule.
+ */
+static INLINE int _sched_cmp(const ir_node *a, const ir_node *b)
+{
+ assert(_sched_is_scheduled(a) && _sched_is_scheduled(b));
+ assert(get_nodes_block(a) == get_nodes_block(b));
+
+ return get_irn_sched_info(a)->time_step - get_irn_sched_info(b)->time_step;
+}
+