[all-commits] [llvm/llvm-project] e3ffe7: [AMDGPU] Cluster shader exports

[Carl Ritson via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: e3ffe7269b6992a23a76b3148cb930c5b62ded88
      https://github.com/llvm/llvm-project/commit/e3ffe7269b6992a23a76b3148cb930c5b62ded88
  Author: Carl Ritson <carl.ritson at amd.com>
  Date:   2020-05-07 (Thu, 07 May 2020)

  Changed paths:
    A llvm/lib/Target/AMDGPU/AMDGPUExportClustering.cpp
    A llvm/lib/Target/AMDGPU/AMDGPUExportClustering.h
    M llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
    M llvm/lib/Target/AMDGPU/CMakeLists.txt
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.exp.ll

  Log Message:
  -----------
  [AMDGPU] Cluster shader exports

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

Reviewers: foad, arsenm, rampitec, nhaehnle

Reviewed By: foad

Subscribers: kzhuravl, jvesely, wdng, mgorny, yaxunl, dstuttard, tpr, t-tye, hiraditya, kerbowa, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D79481