[PATCH] D29153: [BranchFolding] Tail common all identical unreachable blocks

[Reid Kleckner via Phabricator via llvm-commits]

rnk added a comment.

I'm going to go ahead and land this. Most people on the review seem to feel like this is a positive, low risk change, now that we've sorted out the heuristic for what a block ending in unreachable looks like.


https://reviews.llvm.org/D29153