理学 编译系统 释 data flow analysis; DFA 数据流分析 数据流分析（Data Flow Analysis, DFA）是确定数据如何沿着程序执行路径变化的程序分析方法。数据流分析通过遍历控制流图，收集程序在运行时数据可能发生的变化，从而揭示一个过程或程序是如何处理数据的。数据流分析所获得的信息是编译器实现代码优化的重要基础。
系统软件 语言与编译 释文 dataflow analysis 数据流分析
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