[PATCH] D71656: [DAGCombiner] Check term use before applying aggressive FSUB optimisation

[Carl Ritson via Phabricator via llvm-commits]

critson updated this revision to Diff 234826.
critson added a comment.

Unify with existing tests and apply usage check to further similar patterns.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D71656/new/

https://reviews.llvm.org/D71656

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/AMDGPU/fadd-fma-fmul-combine.ll

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