[PATCH] D79481: [AMDGPU] Cluster shader exports

[Carl Ritson via Phabricator via llvm-commits]

critson created this revision.
critson added reviewers: foad, arsenm, rampitec, nhaehnle.
Herald added subscribers: llvm-commits, kerbowa, hiraditya, t-tye, tpr, dstuttard, yaxunl, mgorny, wdng, jvesely, kzhuravl.
Herald added a project: LLVM.

Add DAG scheduling mutation to cluster export instructions.
This avoids unnecessary waitcnts being added when computation
ends up interspersed with exports.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D79481

Files:
  llvm/lib/Target/AMDGPU/AMDGPUExportClustering.cpp
  llvm/lib/Target/AMDGPU/AMDGPUExportClustering.h
  llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
  llvm/lib/Target/AMDGPU/CMakeLists.txt
  llvm/test/CodeGen/AMDGPU/llvm.amdgcn.exp.ll

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