PROCESSOR HAVING INCREASED PERFORMANCE VIA ELIMINATION OF SERIAL DEPENDENCIES

摘要

Methods and apparatuses are provided for achieving increased performance via elimination of serial dependencies in instructions or instruction sequences. The apparatus comprises an operational unit for determining whether an instruction will cause dependencies during completion in an execution unit. Responsive to that determination the instruction is replaced with an alternative instruction for completion in the execution unit. In this way, the alternative instruction is completed without causing dependencies in the execution unit. The method comprises determining that an instruction will cause dependencies during completion in a processor and replacing the instruction with an alternative instruction for completion in the processor.