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Register allocation for software pipelined loops

Published: 01 July 1992 Publication History

Abstract

Software pipelining is an important instruction scheduling technique for efficiently overlapping successive iterations of loops and executing them in parallel. This paper studies the task of register allocation for software pipelined loops, both with and without hardware features that are specifically aimed at supporting software pipelines. Register allocation for software pipelines presents certain novel problems leading to unconventional solutions, especially in the presence of hardware support. This paper formulates these novel problems and presents a number of alternative solution strategies. These alternatives are comprehensively tested against over one thousand loops to determine the best register allocation strategy, both with and without the hardware support for software pipelining.

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cover image ACM Conferences
PLDI '92: Proceedings of the ACM SIGPLAN 1992 conference on Programming language design and implementation
July 1992
352 pages
ISBN:0897914759
DOI:10.1145/143095
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 01 July 1992

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