Over the last four years, we at Azul have developed and shipped a LLVM based JIT compiler within the Zing JVM. Falcon is now the default optimizing JIT for Zing and is in widespread production use. This talk will focus on the overall design of Falcon, with particular emphasis on how we extended LLVM to be successful in this new role. We have presented portions of the upstream technical work at previous developers meetings; this talk will emphasize how the various pieces fit together in a successful effort. In addition to the technical design, we will also cover key process decisions that ended up being essential for the success of the project.
