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A New Approach to Pointer Analysis for Assignments 认领 引用
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作者 黄波 藏斌宇 +1 位作者 李靖 朱传琪 《Journal of Computer Science & Technology》 SCIE EI 2001年第3期242-250,共9页
Pointer analysis is a technique to identify at compile-time the potential values of the pointer expressions in a program, which promises significant benefits for optimizing and parallelizing compilers. In this paper, ... Pointer analysis is a technique to identify at compile-time the potential values of the pointer expressions in a program, which promises significant benefits for optimizing and parallelizing compilers. In this paper, a new approach to pointer analysis for assignments is presented. In this approach, assignments are classified into three categories: pointer assignments, structure (union) assignments and normal assignments which don't affect the point-to information. Pointer analyses for these three kinds of assignments respectively make up the integrated algorithm. When analyzing a pointer assignment, a new method called expression expansion is used to calculate both the left targets and the right targets. The integration of recursive data structure analysis into pointer analysis is a significant originality of this paper, which uniforms the pointer analysis for heap variables and the pointer analysis for stack variables. This algorithm is implemented in Agassiz, an analyzing tool for C programs developed by institute of Parallel Processing, Fudan University. Its accuracy and effectiveness are illustrated by experimental data. 展开更多
关键词 pointer analysis pointer assignment point-to information recursive data structure
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Dependence Analysis for C Programs with Combinability of Dataflow Facts under Consideration 认领 引用
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作者 QIAN Ju XU Baowen +2 位作者 ZHOU Xiaoyu CHEN Lin SHI Liang 《Wuhan University Journal of Natural Sciences》 CAS 2009年第4期321-326,共6页
To avoid the precision loss caused by combining data- flow facts impossible to occur in the same execution path in dependence analysis for C programs, this paper first proposes a flow-sensitive and context-insensitive... To avoid the precision loss caused by combining data- flow facts impossible to occur in the same execution path in dependence analysis for C programs, this paper first proposes a flow-sensitive and context-insensitive points-to analysis algorithm and then presents a new dependence analysis approach based on it. The approach makes more sufficient consideration on the executa- ble path problem and can avoid invalid combination between points-to relations and between points-to relations and reaching definitions. The results of which are therefore more precise than those of the ordinary dependence analysis approaches. 展开更多
关键词 pointer analysis dependence analysis executable path
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