[PATCH] D141712: [GVN] Improve PRE on load instructions

[Nikita Popov via Phabricator via llvm-commits]

nikic requested changes to this revision.
nikic added a comment.
This revision now requires changes to proceed.

I believe the change to metadata.ll is a miscompile. The new range metadata in that case should be a union of both old ranges. This is missing a combineMetadataForCSE() somewhere.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D141712/new/

https://reviews.llvm.org/D141712