by Philipp Schuster, Marius Müller, Klaus Ostermann, and Jonathan Immanuel Brachthäuser

In Proceedings of the International Conference on Object-Oriented Programming, Systems, Languages and Applications (OOPSLA), 2025.

Abstract

Compiler intermediate representations have to strike a balance between being high-level enough to allow for easy translation of surface languages into them and being low-level enough to make code generation easy. An intermediate representation based on a logical system typically has the former property and additionally satisfies several meta-theoretical properties which are valuable when optimizing code. Recently, classical sequent calculus, which is widely recognized and impactful within the fields of logic and proof theory, has been proposed as a natural candidate in this regard, due to its symmetric treatment of data and control flow. For such a language to be useful, however, it must eventually be compiled to machine code. In this paper, we introduce an intermediate representation that is based on classical sequent calculus and demonstrate that this language can be directly translated to conventional hardware. We provide both a formal description and an implementation. Preliminary performance evaluations indicate that our approach is viable.

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