[PATCH] D124246: [AMDGPU] Adjust wave priority based on VMEM instructions to avoid duty-cycling.

[Ivan Kosarev via Phabricator via llvm-commits]

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As older waves execute long sequences of VALU instructions, this may
prevent younger waves from address calculation and then issuing their
VMEM loads, which in turn leads the VALU unit to idle. This patch tries
to prevent this by temporarily raising the wave's priority.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D124246

Files:
  llvm/lib/Target/AMDGPU/AMDGPU.h
  llvm/lib/Target/AMDGPU/AMDGPUSetWavePriority.cpp
  llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
  llvm/lib/Target/AMDGPU/CMakeLists.txt
  llvm/test/CodeGen/AMDGPU/llc-pipeline.ll
  llvm/test/CodeGen/AMDGPU/set-wave-priority.ll

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