[PATCH] D135330: [RISCV] Add isel patterns for vmacc, vnmsac.

[Yeting Kuo via Phabricator via llvm-commits]

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The patch selects VSELECT/VP_MERGE_VL which uses fmadd/fnmsub as true operand
and the adden of the fmadd/fnmsub as false operand.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D135330

Files:
  llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-vmacc-vp.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-vnmsac-vp.ll
  llvm/test/CodeGen/RISCV/rvv/vmacc-vp.ll
  llvm/test/CodeGen/RISCV/rvv/vnmsac-vp.ll