关键词: 子字并行 指令选择 代价子图

Abstract:

Subword parallelism can fully utilize the characteristics of multimedia algorithms, and it is an effective way to accelerate multimedia processing. Ho  wever it is hard to mine the subwords in multimedia applications. This paper shows that the traditional parallelization techniques can be used to exploi  t subword parallelism, and also proposes a novel method to extract subword parallelism based on the cost subgraph. We evaluate the effectiveness of our   methods for a number of benchmarks on the TTA framework. The results reveal that this method can significantly obtain the available subword parallelism   in the loop.

Key words: subword parallelism, instruction selection, cost subgraph