/**
* Returns the debug information of an node.
*/
-dbg_info *get_irn_dbg_info(ir_node *n);
+dbg_info *get_irn_dbg_info(const ir_node *n);
/**
* Sets the debug information of an entity.
dbg_rem_poly_call, /**< Remove polymorphic call. */
dbg_dead_code, /**< Removing unreachable code, I.e. blocks that are never executed. */
dbg_opt_confirm, /**< A Firm subgraph was replace because of a Confirmation */
+ dbg_backend, /**< Backend transformation */
dbg_max /**< Maximum value. */
} dbg_action;