Memento Mori: Dynamic Allocation-Site-Based Optimizations Daniel Clifford Hannes Payer Michael Stanton Ben L. Titzer Google, Munich, Germany {danno,hpayer,mvstanton,titzer}@google.com Abstract Languages that lack static typing are ubiquitous in the world of mobile and web applications. The rapid rise of larger ap- plications like interactive web GUIs, games, and cryptog- raphy presents a new range