[all-commits] [llvm/llvm-project] e7926e: [RISCV] Match VF variants for masked VFRDIV/VFRSUB

[Fraser Cormack via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e7926e8d972e8129d4b64e10a38719b066a526be
      https://github.com/llvm/llvm-project/commit/e7926e8d972e8129d4b64e10a38719b066a526be
  Author: Fraser Cormack <fraser at codeplay.com>
  Date:   2022-01-24 (Mon, 24 Jan 2022)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVISelLowering.cpp
    M llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-vfrdiv-vp.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-vfrsub-vp.ll
    M llvm/test/CodeGen/RISCV/rvv/sink-splat-operands.ll

  Log Message:
  -----------
  [RISCV] Match VF variants for masked VFRDIV/VFRSUB

This patch follows up on D117697 to help the simple binary operations
behave similarly in the presence of masks.

It also enables CGP sinking support for vp.fdiv and vp.fsub intrinsics,
now that VFRDIV and VFRSUB are consistently matched with a LHS splat for
masked and unmasked variants.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D117783