[PATCH] D64557: Add llvm.loop.licm.disable metadata

[Tim Corringham via Phabricator via llvm-commits]

timcorringham added a comment.

The target in this case is AMDGPU, and the problem is that transformations can create excessive register pressure ( but I don't believe this is necessarily unique to that target). The front-end has additional information available which can sometimes be used to identify such cases.

This change will only affect code when the metadata is used, so shouldn't have any adverse effect.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D64557/new/

https://reviews.llvm.org/D64557