[PATCH] D120544: [AMDGPU] Omit unnecessary waitcnt before barriers

[Nicolai Hähnle via Phabricator via llvm-commits]

nhaehnle added a comment.

I don't see how this change could possibly have ever been correct. Whether backoff is supported or not, in most cases there will be no backoff, and in that case, the waitcnt is required.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D120544/new/

https://reviews.llvm.org/D120544