[PATCH] D158127: AMDGPU: Permit more rsq formation in AMDGPUCodeGenPrepare

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: AMDGPU, rampitec, foad.
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We were basing the defer the fast case to codegen based on the fdiv
itself, and not looking for a foldable sqrt input.


https://reviews.llvm.org/D158127

Files:
  llvm/lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp
  llvm/test/CodeGen/AMDGPU/amdgpu-codegenprepare-fdiv.ll
  llvm/test/CodeGen/AMDGPU/fdiv_flags.f32.ll
  llvm/test/CodeGen/AMDGPU/rsq.f32.ll

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