Optimal code size reduction for software-pipelined and unfolded loops

Qingfeng Zhuge, Bin Xiao, Zili Shao, Edwin H M Sha, Chantana Chantrapornchai

Research output: Journal article publicationConference articleAcademic researchpeer-review

1 Citation (Scopus)


Software pipelining and unfolding are commonly used techniques to increase parallelism for DSP applications. However, these techniques expand the code size of the application significantly. For most DSP systems with limited memory resources, code size becomes one of the most critical concerns for the high-performance applications. In this paper, we present the code size reduction theory based on retiming and unfolding concepts. We propose a code size reduction framework to achieve the optimal code size of software-pipelined and unfolded loops by using conditional registers. The experimental results on several well-know benchmarks show the effectiveness of our code size reduction technique in controlling the code size of optimized loops.
Original languageEnglish
Pages (from-to)144-149
Number of pages6
JournalProceedings of the International Symposium on System Synthesis
Publication statusPublished - 1 Dec 2002
Externally publishedYes
Event15th International Symposium on System Synthesis - Kyoto, Japan
Duration: 2 Oct 20024 Oct 2002


  • Retiming
  • Rotation scheduling
  • Software pipelining
  • Unfolding

ASJC Scopus subject areas

  • Hardware and Architecture


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