extern void (*__dbg_info_merge_sets)(ir_node **new_nodes, int n_new_nodes,
ir_node **old_nodes, int n_old_nodes,
dbg_action info);
extern void (*__dbg_info_merge_sets)(ir_node **new_nodes, int n_new_nodes,
ir_node **old_nodes, int n_old_nodes,
dbg_action info);