[PATCH] D155593: AMDGPU: Overhaul and improve rcp and rsq f32 formation

[Matt Arsenault via Phabricator via llvm-commits]

arsenm updated this revision to Diff 541988.
arsenm added a comment.

Defer the afn/unsafe-fp-math case to codegen for now, although it's really aggressive


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D155593/new/

https://reviews.llvm.org/D155593

Files:
  llvm/docs/ReleaseNotes.rst
  llvm/lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp
  llvm/test/CodeGen/AMDGPU/GlobalISel/fdiv.f32.ll
  llvm/test/CodeGen/AMDGPU/amdgpu-codegenprepare-fdiv.ll
  llvm/test/CodeGen/AMDGPU/fdiv.ll
  llvm/test/CodeGen/AMDGPU/fdiv32-to-rcp-folding.ll
  llvm/test/CodeGen/AMDGPU/fdiv_flags.f32.ll
  llvm/test/CodeGen/AMDGPU/rcp-pattern.ll
  llvm/test/CodeGen/AMDGPU/rsq.f32.ll

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