[all-commits] [llvm/llvm-project] 2f3e17: [RISCV] Add a special caes to performVFMADD_VLComb...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2f3e17566bcf20bf580c92693f9653df3bc4f51d
      https://github.com/llvm/llvm-project/commit/2f3e17566bcf20bf580c92693f9653df3bc4f51d
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2023-05-24 (Wed, 24 May 2023)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVISelLowering.cpp
    M llvm/test/CodeGen/RISCV/rvv/vfwmacc-vp.ll

  Log Message:
  -----------
  [RISCV] Add a special caes to performVFMADD_VLCombine to support the multiplicand being the same value.

The one use check will fail if there are two uses in the same
instruction. Add a special case for this.