+ * @param irn The node.
+ * @return The time step in the schedule.
+ */
+static inline sched_timestep_t sched_get_time_step(const ir_node *irn)
+{
+ assert(sched_is_scheduled(irn));
+ return get_irn_sched_info(irn)->time_step;
+}
+
+static inline bool sched_is_end(const ir_node *node)
+{
+ return is_Block(node);
+}
+
+static inline bool sched_is_begin(const ir_node *node)
+{
+ return is_Block(node);
+}
+
+/**
+ * Check, if an ir_node has a scheduling successor.
+ * @param irn The ir node.
+ * @return 1, if the node has a scheduling successor, 0 if not.
+ */
+static inline bool sched_has_next(const ir_node *irn)
+{
+ const sched_info_t *info = get_irn_sched_info(irn);
+ const ir_node *block = is_Block(irn) ? irn : get_nodes_block(irn);
+ return info->next != block;
+}
+
+/**
+ * Check, if an ir_node has a scheduling predecessor.
+ * @param irn The ir node.
+ * @return 1, if the node has a scheduling predecessor, 0 if not.
+ */
+static inline bool sched_has_prev(const ir_node *irn)
+{
+ const sched_info_t *info = get_irn_sched_info(irn);
+ const ir_node *block = is_Block(irn) ? irn : get_nodes_block(irn);
+ return info->prev != block;
+}
+
+/**
+ * Get the scheduling successor of a node.
+ * @param irn The node.
+ * @return The next ir node in the schedule or the block, if the node has no next node.
+ */
+static inline ir_node *sched_next(const ir_node *irn)
+{
+ const sched_info_t *info = get_irn_sched_info(irn);
+ return info->next;
+}
+
+/**
+ * Get the scheduling predecessor of a node.
+ * @param irn The node.
+ * @return The next ir node in the schedule or the block, if the node has no predecessor.
+ * predecessor.
+ */
+static inline ir_node *sched_prev(const ir_node *irn)
+{
+ const sched_info_t *info = get_irn_sched_info(irn);
+ return info->prev;
+}
+
+/**
+ * Get the first node in a block schedule.
+ * @param block The block of which to get the schedule.
+ * @return The first node in the schedule or the block itself
+ * if there is no node in the schedule.
+ */
+static inline ir_node *sched_first(const ir_node *block)
+{
+ assert(is_Block(block) && "Need a block here");
+ return sched_next(block);
+}
+
+/**
+ * Get the last node in a schedule.
+ * @param block The block to get the schedule for.
+ * @return The last ir node in a schedule, or the block itself
+ * if there is no node in the schedule.
+ */
+static inline ir_node *sched_last(const ir_node *block)
+{
+ assert(is_Block(block) && "Need a block here");
+ return sched_prev(block);
+}
+
+/**
+ * Add a node to a block schedule.
+ * @param block The block to whose schedule the node shall be added to.
+ * @param irn The node to add.
+ * @return The given node.
+ */
+void sched_add_before(ir_node *before, ir_node *irn);
+
+
+/**
+ * Add a node to a block schedule.
+ * @param block The block to whose schedule the node shall be added to.
+ * @param irn The node to add.
+ * @return The given node.
+ */
+void sched_add_after(ir_node *after, ir_node *irn);
+
+static inline void sched_init_block(ir_node *block)
+{
+ sched_info_t *info = get_irn_sched_info(block);
+ assert(info->next == NULL && info->time_step == 0);
+ info->next = block;
+ info->prev = block;
+}
+
+static inline void sched_reset(ir_node *node)
+{
+ sched_info_t *info = get_irn_sched_info(node);
+ info->next = NULL;
+ info->prev = NULL;
+}
+
+/**
+ * Remove a node from the scheduled.
+ * @param irn The node.
+ */
+void sched_remove(ir_node *irn);
+
+/**
+ * Checks, if one node is scheduled before another.
+ * @param n1 A node.
+ * @param n2 Another node.
+ * @return true, if n1 is in front of n2 in the schedule, false else.
+ * @note Both nodes must be in the same block.