[PATCH] D43237: [LoopInterchange] Allow some loops with PHI nodes in the exit block.

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

Can you given an example which isn't safe to interchange due to a PHI node in the outer loop's exit block?  I'm not following the logic here.


https://reviews.llvm.org/D43237