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

[Marek Olšák via Phabricator via llvm-commits]

mareko added a comment.

We are going to insert amdgcn.s.waitcnt instead of a fence because fences wait for memory stores, which we don't want.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D120544/new/

https://reviews.llvm.org/D120544