[PATCH] D123328: AMDGPU: Update reqd-work-group-size optimization for umin intrinsic

[Matt Arsenault via Phabricator via llvm-commits]

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This code was pattern matching the ID computation expression as it
appears in the library. This was a compare and select, but now that
umin is canonical, we were no longer matching. Update to match the
intrinsic instead.


https://reviews.llvm.org/D123328

Files:
  llvm/lib/Target/AMDGPU/AMDGPULowerKernelAttributes.cpp
  llvm/test/CodeGen/AMDGPU/reqd-work-group-size.ll

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