发明申请
- 专利标题： Method and Apparatus for Optimizing Software Program Using Inter-Procedural Strength Reduction
- 专利标题（中）： 使用程序间强度降低优化软件程序的方法和装置
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申请号： US12270707申请日： 2008-11-13
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公开(公告)号： US20090106745A1公开(公告)日： 2009-04-23
- 发明人: Roch Georges Archambault , Shimin Cui , Raul Esteban Silvera
- 申请人： Roch Georges Archambault , Shimin Cui , Raul Esteban Silvera
- 申请人地址： US NY Armonk
- 专利权人： INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人： INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址： US NY Armonk
- 主分类号： G06F9/45
- IPC分类号： G06F9/45
摘要：
Inter-procedural strength reduction is provided by a mechanism of the present invention to optimize software program. During a forward pass, the present invention collects information of global variables and analyzes the information to select candidate computations for optimization. During a backward pass, the present invention replaces costly computations with less costly or weaker computations using pre-computed values and inserts store operations of new global variables to pre-compute the costly computations at definition points of the global variables used in the costly computations.
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