1. An integrated circuit, comprising: first and second specialized processing blocks, wherein the first specialized processing block comprises: a first arithmetic operator stage; a second arithmetic operator stage; and an output that is directly coupled to the second specialized processing block, wherein the first arithmetic operator stage has an output port that is coupled to the output of the first specialized processing block via a first path and that is coupled to an input port of the second arithmetic operator stage via a second path that is separate from the first path.