ir_node *(sched_add_before)(ir_node *before, ir_node *irn);
ir_node *(sched_add_after)(ir_node *before, ir_node *irn);
+#define sched_is_end(irn) is_Block(irn)
+#define sched_is_begin(irn) is_Block(irn)
+
+#define sched_foreach_from(from, irn) \
+ for(irn = from; !sched_is_end(irn); irn = sched_next(irn))
+
+#define sched_foreach_reverse_from(from, irn) \
+ for(irn = from; !sched_is_begin(irn); irn = sched_prev(irn))
+
/**
* A shorthand macro for iterating over a schedule.
* @param block The block.
* @param irn A ir node pointer used as an iterator.
*/
#define sched_foreach(block,irn) \
- for(irn = sched_first(block); !is_Block(irn); irn = sched_next(irn))
+ sched_foreach_from(sched_first(block), irn)
/**
* A shorthand macro for reversely iterating over a schedule.
* @param irn A ir node pointer used as an iterator.
*/
#define sched_foreach_reverse(block,irn) \
- for(irn = sched_last(block); !is_Block(irn); irn = sched_prev(irn))
+ sched_foreach_reverse_from(sched_last(block), irn)
#endif