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        Using conditional execution to exploit instruction level concurrency

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        CSTR 181.pdf (PDF, 3Mb)
        Author
        Gray, S.M.
        Adams, R.G.
        Attention
        2299/4850
        Abstract
        Multiple-instruction-issue processors seek to improve performance over scalar RISC processors by providing multiple pipelined functional units in order to fetch, decode and execute several instructions per cycle. The process of identifying instructions which can be executed in parallel and distributing them between the available functional units is referred to as instruction scheduling. This paper describes a simple compile-time scheduling technique, called confitional compaction, which uses the concept of conditional execution to move instructions across basic block boundaries. It then presents the results of an investigation into the performance of the scheduling technique using C benchmarks programs scheduled for machines with different functional unit configurations.
        Publication date
        1994
        Other links
        http://hdl.handle.net/2299/4850
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