Disclosed is a method of replicating control signal sources, comprising: receiving a description of a functional block that comprises at least one of, a plurality of multiplexer structures, a plurality of memory blocks, and a combination of at least one multiplexer structure and at least one memory block; identifying a control signal that controls said at least one of, said plurality of multiplexer structures, said plurality of memory blocks, and said combination of at least one multiplexer structure and at least one memory block; and, determining a first replica control signal and a second replica control signal, said first replica control signal and said second replica control signal collectively functioning as said control signal to control said at least one of, said plurality of multiplexer structures, said plurality of memory blocks, and said combination of at least one multiplexer structure and at least one memory block.