[PATCH] D18101: AMDGPU: mark llvm.amdgcn.image.atomic.* as a source of divergence

[Nicolai Hähnle via llvm-commits]

nhaehnle created this revision.
nhaehnle added reviewers: arsenm, tstellarAMD.
nhaehnle added a subscriber: llvm-commits.
Herald added a subscriber: arsenm.

When multiple threads perform an atomic op with the same arguments, they
will usually see different return values.

http://reviews.llvm.org/D18101

Files:
  lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
  test/CodeGen/AMDGPU/llvm.amdgcn.image.atomic.divergence.ll

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