[PATCH] D126273: [DAGCombiner][VP] Add DAGCombine for merging VP_FADD and VP_FMUL to VP_FMA.

[Liao Chunyu via Phabricator via llvm-commits]

liaolucy added a comment.

When I test tsvc.

The IR is:

  @llvm.fmuladd.nxv2f32(<vscale x 2 x float>.....

Not

  @llvm.riscv.vfmul.nxv2f32.nxv2f32(<vscale x 2 x float> ......
  @llvm.riscv.vfadd.nxv2f32.nxv2f32(<vscale x 2 x float> ......
   

So I am not sure, we need merge vp.fmul and vp.fadd to vp.fma.  maybe vp.fma is enough?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D126273/new/

https://reviews.llvm.org/D126273