#define be_ifg_cliques_break(self, iter) ((self)->impl->cliques_break(self, iter))
#define be_ifg_degree(self,irn) ((self)->impl->degree(self, irn))
#define be_ifg_cliques_break(self, iter) ((self)->impl->cliques_break(self, iter))
#define be_ifg_degree(self,irn) ((self)->impl->degree(self, irn))