typedef void (irg_walk_func)(ir_node *, void *);
#endif
+/* Allocates some necessary datastructures. */
+void init_ip_walk(void);
+
+/* Frees some necessary datastructures. */
+void finish_ip_walk(void);
+
/* Walks over the ir graph, starting at the node given as first argument.
Executes pre before visiting the predecessor of a node, post after.
irg_walk uses the visited flag in irg and the nodes to determine visited