Analysis for Code Size Opportunities in RISC V - Ibrahim Abu Kharmeh, Huawei UK

Zce is a RISC-V extension currently being designed to aid RISC-V to compete with alternative ISAs in term of code size density. For the extension to be effective, one would need to find possible optimisation opportunities, and effectively and accurately estimate code size savings from such optimisations and also estimate if such optimisations would present any performance penalty. In this talk, Ibrahim will shortly go over why code size density is important, introduce the Zce extension and its main proposed instructions. Then he will introduce the analysis script used to estimate projected code savings, discuss how it works and its limitation. Finally, he will conclude with projected code size savings from the extension proposed instructions.

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