[PATCH] D157936: AMDGPU: Fix fast math log2 f32

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
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Apparently afn doesn't allow you to drop the denormal handling
according to OpenCL conformance. This was hidden by losing the flags
during the library linking process. Fast log is still broken and needs
more work.


https://reviews.llvm.org/D157936

Files:
  llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
  llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
  llvm/test/CodeGen/AMDGPU/llvm.log2.ll

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