Over the few last months we at Azul were teaching Falcon, our LLVM based optimizing JIT compiler, to leverage the new pass manager framework. This talk will focus on our motivation as well as practical experience in getting an extensive custom LLVM pipeline to production under the new pass manager.
I will cover the current state of LLVM pass manager as viewed from our "downstream" side, issues we met while converting, as well as our expectations and how well they were met at the end.
