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Commit 15dd5ed9 authored by Evgenii Kudriashov's avatar Evgenii Kudriashov Committed by Phoebe Wang
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[X86] Support ANDNP combine through vector_shuffle 

Combine
```
   and (vector_shuffle<Z,...,Z>
            (insert_vector_elt undef, (xor X, -1), Z), undef), Y
   ->
   andnp (vector_shuffle<Z,...,Z>
              (insert_vector_elt undef, X, Z), undef), Y
```

Reviewed By: RKSimon, pengfei

Differential Revision: https://reviews.llvm.org/D138521
parent dd881c9d
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