Extracting The Regions with No Memory Accessfor High-level Synthesis

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In order to decrease the number of memory accesses, we have implemented a technique aggregating array references in continuous for improving cache-efficiency, and a technique applying the scalar replacement, which replaces array references with register references over some iterations of a loop, to an entire program. Also, in order to improve the efficiency of these techniques, we have developed the demand-driven partial redundancy elimination based on the global value numbering, and then have developed the demand-driven partial dead code elimination applying the demand-driven property to the partial dead code elimination.