[PATCH] D27830: Preserve loop metadata when folding branches to a common destination

[Michael Kuperstein via Phabricator via llvm-commits]

mkuper added a comment.

In https://reviews.llvm.org/D27830#624499, @danielcdh wrote:

> When/how was MD_loop set/used? Is it related to profile?


No, it's not related to profile information.
It's used to do things like explicitly enable or disable vectorization, unrolling, etc. I added you to the review because this is similar in spirit to what you did for the profile information.


https://reviews.llvm.org/D27830