[llvm-branch-commits] [llvm] [LoongArch] Custom legalize vector_shuffle to `xvinsve0.{w/d}` when possible (PR #161156)

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zhaoqi5 wrote:

Same as https://github.com/llvm/llvm-project/pull/160857 which has been closed because of my silly mistake.

https://github.com/llvm/llvm-project/pull/161156