[all-commits] [llvm/llvm-project] 0f47e3: [LoongArch] Eliminate the redundant sign extension...

[hev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0f47e3aebdd2a4a938468a272ea4224552dbf176
      https://github.com/llvm/llvm-project/commit/0f47e3aebdd2a4a938468a272ea4224552dbf176
  Author: hev <wangrui at loongson.cn>
  Date:   2024-09-10 (Tue, 10 Sep 2024)

  Changed paths:
    M llvm/lib/Target/LoongArch/LoongArchOptWInstrs.cpp
    M llvm/test/CodeGen/LoongArch/ir-instruction/sdiv-udiv-srem-urem.ll

  Log Message:
  -----------
  [LoongArch] Eliminate the redundant sign extension of division (#107971)

If all incoming values of `div.d` are sign-extended and all users only
use the lower 32 bits, then convert them to W versions.

Fixes: #107946



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