Equality Saturation for Datapath Synthesis: A Pathway to Pareto Optimality

Equality saturation, originally developed in the late 1970s for use in automated theorem provers, has been recently advanced to perform scalable rule-based rewriting for optimizations in various domains, such as program synthesis, compiler optimization, and datapath synthesis. Constructing an e-grap...

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Veröffentlicht in:2023 60th ACM/IEEE Design Automation Conference (DAC) S. 1 - 2
Hauptverfasser: Ustun, Ecenur, Yu, Cunxi, Zhang, Zhiru
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 09.07.2023
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Zusammenfassung:Equality saturation, originally developed in the late 1970s for use in automated theorem provers, has been recently advanced to perform scalable rule-based rewriting for optimizations in various domains, such as program synthesis, compiler optimization, and datapath synthesis. Constructing an e-graph using rewrite rules that preserve program functionality, equality saturation addresses phase ordering problems in rewriting-driven optimizations. This promising approach shows significant potential for achieving Pareto optimality. This paper provides a brief introduction to equality saturation and the open-source tool egg, and highlights its potential application in optimizing datapaths in both RTL and high-level synthesis. We include case studies and outline the opportunities for future work in both datapath and logic synthesis using equality saturation.
DOI:10.1109/DAC56929.2023.10247948