[llvm] [X86] lowerShuffleAsLanePermuteAndPermute - ensure we've simplified the demanded shuffle mask elts before testing for a matching shuffle (PR #153554)

[Abhishek Kaushik via llvm-commits]

https://github.com/abhishek-kaushik22 approved this pull request.


https://github.com/llvm/llvm-project/pull/153554