October 20, 2025Open Access

Integer Set Library (ISL) - A Primer

Key Points

Polyhedral optimization improves loop nests in compilers, enhancing performance and efficiency.
The Integer Set Library (ISL) provides a robust open source alternative for implementing these optimizations.
Major compilers typically develop polyhedral optimizations independently, often reinventing similar techniques.
Using a standard library like ISL can streamline development and reduce duplication of effort in compiler optimization.

Abstract

Polyhedral optimization is a tool used in compilers for optimizing loop nests. While the major compilers that use this implement polyhedral optimizations from scratch,1 there is a generally-applicable open source C library called the Integer Set Library (ISL) that implements the core algorithms used in polyhedral optimization.

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Cite This Study

Jeremy Kun (Sun,) studied this question.

synapsesocial.com/papers/68f5fcd68d54a28a75cf1f34 https://doi.org/https://doi.org/10.59350/mtk59-wp097

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