[PATCH] D43293: [SimplifyCFG] Don't remove preheaders when we need canonical loops.

[Serguei Katkov via Phabricator via llvm-commits]

skatkov added a comment.

What is about Eli's comment?

When you remove backedge you introduce new backedge. So you need to add new backedge to the list of the backedges.


https://reviews.llvm.org/D43293