[PATCH] D111681: [IVUsers] Move preheader check into SCEVExpander

[Philip Reames via Phabricator via llvm-commits]

reames added a comment.

On the updated revision, my earlier LGTM still stands, but I'm less and less sure this is worth doing.  As previously, I'll defer to your judgement.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D111681/new/

https://reviews.llvm.org/D111681