[PATCH] D56796: [DAGCombiner][x86] add transform/hook to vectorize: cast(extract V, Y)

[Sanjay Patel via Phabricator via llvm-commits]

spatel added a comment.

A later, target-specific alternative to this patch is proposed in D56864 <https://reviews.llvm.org/D56864>.
As I mentioned in the summary, I'm not that concerned about the knownbits regression, but the other patch does sidestep that problem.


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https://reviews.llvm.org/D56796