[PATCH] D42406: Utils: Fix DomTree update for entry block

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In https://reviews.llvm.org/D42406#985160, @brzycki wrote:

> I too am curious how this managed to not be found for several years. @arsenm how did you discover this?


I'm working on a replacement for StructurizeCFG which needs to insert a block before certain blocks. Sometimes that ends up picking the entry block


https://reviews.llvm.org/D42406