Abstract

This paper presents a compilation technique for Scheme-like languages where functions may look at their continuation before pushing frames onto it. This allows for some optimizations when the frame to be pushed and the frame on top of the continuation can be combined into a single and simplified frame. Among possible simplifications are: intermediate data structure elimination and removal of redundant calculations. Functions can therefore be compiled with respect to their near future and reorganize it when appropriate. The compilation technique is based on an improved CPS-like transformation that makes continuation (i.e. stack) frames explicit. Shape of continuations is approximated to determine which frames would gain by being combined together then partial evaluation is used to determine the behavior of combined frames. Our main results cover local deforestation-like effect as well as iterative compilation of associatively wrapped recursions. This paper presents a compilat...

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