Perceus: Garbage Free Reference Counting with Reuse Microsoft Technical Report, MSR-TR-2020-42, Nov 29, 2020, v2. Alex Reinking∗ Microsoft Research, USA alex_reinking@berkeley.edu Ningning Xie∗ University of Hong Kong nnxie@cs.hku.hk Leonardo de Moura Microsoft Research, USA leonardo@microsoft.com Daan Leijen Microsoft Research, USA daan@microsoft.com Abstract We introduce Perceus, an algorithm fo