[PATCH] D124463: [RISCV] Add isCommutable to scalar FMA instructions.

[Craig Topper via Phabricator via llvm-commits]

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The default implementation of findCommutedOpIndices picks the
first two source operands. That's exactly what we want for the
scalar FMA instructions.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D124463

Files:
  llvm/lib/Target/RISCV/RISCVInstrInfoF.td
  llvm/test/CodeGen/RISCV/machine-cse.ll

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