[llvm] [VectorCombine] Fold Deinterleave/Interleave Pairs (PR #211022)

[Jacob Crawley via llvm-commits]

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jacob-crawley wrote:

I've reverted this back to the previous version which has resolved https://github.com/llvm/llvm-project/pull/211022#issuecomment-5181949245

https://github.com/llvm/llvm-project/pull/211022