[all-commits] [llvm/llvm-project] d7c80b: [llvm][LoongArch] Improve loongarch_lasx_xvpermi_q...

[leecheechen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d7c80bba698bded48c1df4b4bb7424a181aa6195
      https://github.com/llvm/llvm-project/commit/d7c80bba698bded48c1df4b4bb7424a181aa6195
  Author: leecheechen <chenli at loongson.cn>
  Date:   2024-02-27 (Tue, 27 Feb 2024)

  Changed paths:
    M llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
    M llvm/test/CodeGen/LoongArch/lasx/intrinsic-permi.ll

  Log Message:
  -----------
  [llvm][LoongArch] Improve loongarch_lasx_xvpermi_q instrinsic (#82984)

For instruction xvpermi.q, only [1:0] and [5:4] bits of operands[3] are
used. The unused bits in operands[3] need to be set to 0 to avoid
causing undefined behavior.



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