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

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


================
Comment at: llvm/test/CodeGen/AMDGPU/fadd-fma-fmul-combine.ll:258
 
+; CHECK: {{^}}fast_sub_fmuladd_fmul_multi_use_fmuladd_rhs:
+; GCN: buffer_load_dword [[X:v[0-9]+]]
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s/CHECK/GCN


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D71656/new/

https://reviews.llvm.org/D71656