| 摘 要: Open64是一个拥有GNU通用公共许可证的开源高性能编译器，设计结构好，分析优化全面，是编译器高 级研究的理想平台。本文针对BWDSP处理器所提供的高效特殊运算指令，在Open64基础上研究并实现了面向BWDSP 中的特殊指令合成策略。该策略通过扩展并重定向编译器后端模块，能够充分地利用BWDSP中的复数指令、累加指 令、乘累加指令和平方和指令等特殊指令。实验结果表明，本文提出的特殊指令合成策略能够很大程度上提高程序的 性能。 |
| 关键词: Open64编译器；特殊指令合成；超长指令字 |
|
中图分类号: TP311.54
文献标识码: A
|
|
| Research and Implementation of Special Instruction Synthesis Strategy Based on Open64 |
|
CHEN Jine,HUANG Shengbing1,2
|
1.( 1.Basic department ofAnhui Medical College, Hefei 230601, China;2.
2.School of Computer Science and Technology, University of Science and Technology of China, Hefei 230026, China)
|
| Abstract: As an open-source high-performance compiler with GNU General Public License (GPL),Open64 is a good compiler for advanced research.Aiming at the special instructions provided by BWDSP,the paper researches and implements the special instruction synthesis strategy based on Open64.Extending and redirecting the compiler back-end,the strategy fully utilizes the special instructions of BWDSP,including complex,accumulation,multiply accumulation and sum-of-squares operations.The experimental results show that the program performance can be greatly improved with this special instruction synthesis strategy proposed in this paper. |
| Keywords: Open64 compiler;special instruction synthesis;Very Long Instruction Word (VLIW) |
