| 摘要: |
| 代码移动方法是编译程序全局优化的一个关键技术,本文将介绍一种新的代码移动算法,用此算法就可实现公共子表达式的删除和循环不变运算的移动,而且此算法无需检测循环控制结构,只要通过数据流分析就可实现代码移动,因此这种方法十分有效。 |
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| A EFFICIENT ALGORITHM OF CODE MOVEMEN OPTIMIZATION IN A COMPILER |
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Chen Jianhua,Chen Hansheng
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| Abstract: |
| Code motion is an important global optimizing technology in a compiler. Here a new code motion algorithm is discussed, in which code motion (the elimination of common subexpression and the movement of loop-invariant computation, etc. )can be completed simply by data flow analysis without uncovering the loop structures embedded in the control flow graph, therefore it is a very efficient method. |
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