[PATCH] D116954: AMDGPU: Select workitem ID intrinsics to 0 with req_work_group_size

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
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Shockingly we weren't doing this already. We should probably have this
be done earlier in the IR too, but it's still helpful to have the
lowering guarantee it so that we can modify the ABI implicit inputs
based on it.


https://reviews.llvm.org/D116954

Files:
  llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
  llvm/lib/Target/AMDGPU/SIISelLowering.cpp
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.workitem.id.ll
  llvm/test/CodeGen/AMDGPU/llvm.amdgcn.workitem.id.ll

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