[PATCH] D153544: [AMDGPU] Use V_FMA_MIX* more often

[Mateja Marjanovic via Phabricator via llvm-commits]

matejam updated this revision to Diff 539931.
matejam added a comment.

Use selection patterns for selecting V_FMA/MAD_MIX* instead of combiners.
With combiners there is a possibility that fptrunc (fmul a, b) would be selected into fptrunc (fma a, b, 0), and some other combiner could transform it back to its original state.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D153544/new/

https://reviews.llvm.org/D153544

Files:
  llvm/lib/Target/AMDGPU/VOP3PInstructions.td
  llvm/test/CodeGen/AMDGPU/GlobalISel/fdiv.f16.ll
  llvm/test/CodeGen/AMDGPU/fdiv.f16.ll
  llvm/test/CodeGen/AMDGPU/frem.ll
  llvm/test/CodeGen/AMDGPU/mad-mix-lo.ll

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