Code reordering on limited branch offset

doi:10.1145/1250727.1250730

	Code reordering on limited branch offset
	Chen, Yu; Zhang, Fuxin
	2007-06-01
发表期刊	ACM TRANSACTIONS ON ARCHITECTURE AND CODE OPTIMIZATION
ISSN	1544-3566
卷号	4 期号:2 页码:23
摘要	Since the 1980's code reordering has gained popularity as an important way to improve the spatial locality of programs. While the effect of the processor's microarchitecture and memory hierarchy on this optimization technique has been investigated, little research has focused on the impact of the instruction set. In this paper, we analyze the effect of limited branch offset of the MIPS-like instruction set [Hwu et al. 2004, 2005] on code reordering, explore two simple methods to handle the exceeded branches, and propose the bidirectional code layout (BCL) algorithm to reduce the number of branches exceeding the offset limit. The BCL algorithm sorts the chains according to the position of related chains, avoids cache conflict misses deliberately and lays out the code bidirectionally. It strikes a balance among the distance of related blocks, the instruction cache miss rate, the memory size required, and the control flow transfer. Experimental results show that BCL can effectively reduce exceeded branches by 50.1%, on average, with up to 100% for some programs. Except for some programs with little spatial locality, the BCL algorithm can achieve the performance, as the case with no branch offset limitation.
关键词	algorithms code reordering godson processor link-time optimization
DOI	10.1145/1250727.1250730
收录类别	SCI
语种	英语
WOS研究方向	Computer Science
WOS类目	Computer Science, Hardware & Architecture ; Computer Science, Theory & Methods
WOS记录号	WOS:000250622500003
出版者	ASSOC COMPUTING MACHINERY
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/11020
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Chen, Yu
作者单位	Chinese Acad Sci, Inst Comp Technol, Comp Architecture & Syst Lab, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yu,Zhang, Fuxin. Code reordering on limited branch offset[J]. ACM TRANSACTIONS ON ARCHITECTURE AND CODE OPTIMIZATION,2007,4(2):23.
APA	Chen, Yu,&Zhang, Fuxin.(2007).Code reordering on limited branch offset.ACM TRANSACTIONS ON ARCHITECTURE AND CODE OPTIMIZATION,4(2),23.
MLA	Chen, Yu,et al."Code reordering on limited branch offset".ACM TRANSACTIONS ON ARCHITECTURE AND CODE OPTIMIZATION 4.2(2007):23.