void edges_notify_edge(ir_node *src, int pos, ir_node *tgt, ir_node *old_tgt, ir_graph *irg);
/**
- * Walks only over Block nodes in the graph. Has it's own visited
- * flag, so that it can be interleaved with the other walker.
+ * Walks only over Block nodes in the graph. Uses the block visited
+ * flag, so that it can be interleaved with another walker.
*
* @param block the start block
* @param pre the pre visit function