[PATCH] D38541: [Dominators] Take fast path when applying <=1 updates

[Jakub Kuderski via Phabricator via llvm-commits]

kuhar added a comment.

@davide
I haven't measured, but it definitely makes it do less work. The purpose of this patch is to stop people from writing this micro-optimization all over different passes, which just generates a lot of noise in the code.


https://reviews.llvm.org/D38541