Abstract
This paper describes Cream, an optimizer for Java bytecode using side-effect analysis to improve the optimizations. Dead-code elimination and loop-invariant removal are implemented and tested, as well as several variations of the side-effect analysis. The optimizer is tested on real-world applications such as itself and JavaSoft's Java compiler. Results show that the optimizations benefit well from the side-effect analysis. The best side-effect analysis gives five to ten times as many optimizations as without an analysis, and, in one case, makes a speed increase of 25% possible. © 1997 John Wiley & Sons, Ltd.
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