[PATCH] D49519: [RegisterCoalescer] Delay live interval update work until the rematerialization for all the uses from the same def is done

[Chandler Carruth via Phabricator via llvm-commits]

chandlerc added a comment.

Nice approach!

I'd love to know if the old pattern has any real advantages. It would seem much simpler to just always defer the interval update until all the copies have been coalesced. Maybe its worth collecting perf data there too? If we can get away with the simpler (non-heuristic) model, it seems better.


Repository:
  rL LLVM

https://reviews.llvm.org/D49519