The Chez scheme compiler implements a number of interesting optimizations, enabled by its use of the nanopass framework. Andy Keep talks about his work on designing and implementing Chez and how it accomplishes its performance.
Presenter: Andy Keep
Presented at the Scheme workshop 2019: https://icfp19.sigplan.org/home/scheme-2019, part of ICFP'19: icfp19.sigplan.org