嵌入一致图语法的依赖图

摘要

Graph grammars have been developed as an extension of the formal grammars on strings to grammars on graphs, and provide a mechanism in which transformations on graphs can be modeled in a mathematically precise way. In this paper, based on confluent graph grammars, the authors present a novel representation for data-flow graphs, control-flow graphs, combined control-data-graphs, bipartite graphs and hyperedge graphs. How to extract parallelism is specified automatically at different levels by graph rewriting, thus facilitating the design and implementation of parallel compilers and parallel languages.%图语法将字符串上的形式文法扩充为图上的形式文法,提供一种能够使用精确的数学方法来模拟图变换的机制.提出了几种新的基于一致图语法的方法来表示控制流图、数据流图、控制数据流图、二分图和超图,并说明如何通过图重写来自动生成依赖图并挖掘并行性,从而协助并行编译器和并行语言的设计和实现.