数据流分析的关键技术研究

Research of Key Techniques in Data Flow Analysis

数据流分析在编译优化中起着非常关键的作用,尤其是想实现一个具有技术主动权的高性能优化编译器,对数据流分析方法的研究必不可少。本文介绍了数据流分析方法的基本概念和基本原理,介绍了数据流方程的一种解决方法。并结合GCC这个具体的编译器,简要分析了其中数据流分析的具体实现方法。

In compile optimization data flow analysis is a key factor. When it comes to realizing a high performance optimizing compiler, it is necessary to research techniques of data flow analysis. Inthe article the basic concept and principle of data flow analysis are introduced, and a technique is discussed as well. Data flow analysis technique used in GCC （GNU Compiler Collection） is analyzed briefly in the article.