[PATCH] D73588: AMDGPU: Enhancement on FDIV lowering in AMDGPUCodeGenPrepare

[Changpeng Fang via Phabricator via llvm-commits]

cfang updated this revision to Diff 242955.
cfang added a comment.

Updated based on feedback:

1. replace arcp with afn
  - it is the ApproxFunc fast math bit that matters to use inaccurate rcp.
2. drop fpmath metadata since it will no longer be used after we visit fdiv here.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D73588/new/

https://reviews.llvm.org/D73588

Files:
  llvm/lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp
  llvm/lib/Target/AMDGPU/SIISelLowering.cpp
  llvm/test/CodeGen/AMDGPU/amdgpu-codegenprepare-fdiv.ll
  llvm/test/CodeGen/AMDGPU/fdiv.f16.ll

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