[PATCH] D88572: AMDGPU/SelectionDAG Check for NaN, DX10Clamp and IEEE in fmed3 combine

[Petar Avramovic via Phabricator via llvm-commits]

Petar.Avramovic created this revision.
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Add more checks for potential SNaN or QNaN input together with DX10Clamp
and IEEE flags in combines that involve floating point min, max, med3 and
clamp in order to get equivalent instruction for each input.


https://reviews.llvm.org/D88572

Files:
  llvm/lib/Target/AMDGPU/SIISelLowering.cpp
  llvm/test/CodeGen/AMDGPU/clamp-modifier.ll
  llvm/test/CodeGen/AMDGPU/clamp.ll
  llvm/test/CodeGen/AMDGPU/known-never-snan.ll
  llvm/test/CodeGen/AMDGPU/mad-mix-lo.ll

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