[all-commits] [llvm/llvm-project] 9e8333: [AArch64][SelectionDAG] Eliminates redundant zero-...

[Allen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9e83333445715e737ea78e42e082c99c8ebcb7df
      https://github.com/llvm/llvm-project/commit/9e83333445715e737ea78e42e082c99c8ebcb7df
  Author: zhongyunde <zhongyunde at huawei.com>
  Date:   2023-01-09 (Mon, 09 Jan 2023)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64InstrInfo.td
    M llvm/test/CodeGen/AArch64/arm64-popcnt.ll

  Log Message:
  -----------
  [AArch64][SelectionDAG] Eliminates redundant zero-extension for 32-bit popcount

Fix https://github.com/llvm/llvm-project/issues/59597.
mov w8, w0 + fmov d0, x8 ==> fmov s0, w0

Reviewed By: dmgreen, efriedma

Differential Revision: https://reviews.llvm.org/D140649