[llvm] [AMDGPU] Preserve LDS waits when demoting single-wave workgroup scope to wavefront (PR #207473)

[Krzysztof Drewniak via llvm-commits]

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+; RUN: llc -mtriple=amdgcn -mcpu=gfx942 -stop-after=si-memory-legalizer < %s -o - | FileCheck %s --check-prefix=GFX942
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krzysz00 wrote:

Autogenerate?

https://github.com/llvm/llvm-project/pull/207473