[PATCH] D17430: [ifcvn] Don't duplicate blocks containing convergent instructions.

[Justin Lebar via llvm-commits]

jlebar added a comment.

> It just changes the expression of the dependency from expression via branches to expression via predication.


Aha, thank you.  I definitely didn't understand this.

I'll update this patch to add some comments, hopefully save the next person some time.


http://reviews.llvm.org/D17430