[PATCH] D27573: [X86] Fix bug in r288804.

[Zvi Rackover via Phabricator via llvm-commits]

zvi added a comment.

Ayman, I think that @mkuper 's observation is the way to fix the PR you are addressing, followed by patches for the optimization in this patch, and @andreadb's suggestions.


https://reviews.llvm.org/D27573