[all-commits] [llvm/llvm-project] 3e2631: [LoongArch] Optimize codegen for ISD::ROTL (#100344)

[hev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3e2631c9c62990467eca3e173f714367d7e7c0dd
      https://github.com/llvm/llvm-project/commit/3e2631c9c62990467eca3e173f714367d7e7c0dd
  Author: hev <wangrui at loongson.cn>
  Date:   2024-07-30 (Tue, 30 Jul 2024)

  Changed paths:
    M llvm/lib/Target/LoongArch/LoongArchInstrInfo.td
    M llvm/test/CodeGen/LoongArch/rotl-rotr.ll

  Log Message:
  -----------
  [LoongArch] Optimize codegen for ISD::ROTL (#100344)

The LoongArch rotr.{w,d} instruction ignores the high bits of the shift
operand, allowing it to generate more efficient code using the constant
zero register.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications