Denali

Author:

Joshi Rajeev1,Nelson Greg2,Zhou Yunhong2

Affiliation:

1. HP Laboratories, Pasadena, CA

2. HP Laboratories, Palo Alto, CA

Abstract

This article presents a design for the Denali-2 superoptimizer, which will generate minimum-instruction-length machine code for realistic machine architectures using automatic theorem-proving technology: specifically, using E-graph matching (a technique for pattern matching in the presence of equality information) and Boolean satisfiability solving.This article presents a precise definition of the underlying automatic programming problem solved by the Denali-2 superoptimizer. It sketches the E-graph matching phase and presents a detailed exposition and proof of soundness of the reduction of the automatic programming problem to the Boolean satisfiability problem.

Publisher

Association for Computing Machinery (ACM)

Subject

Software

Reference5 articles.

1. Simplify: a theorem prover for program checking

2. Dijkstra E. W. 1976. A Discipline of Programming. Prentice Hall Englewood Cliffs NJ. Dijkstra E. W. 1976. A Discipline of Programming. Prentice Hall Englewood Cliffs NJ.

3. Variations on the Common Subexpression Problem

4. Denali

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