[PATCH] D132206: [DAGCombiner] Fold vecreduce_xor/or/and(splat_vector(val)) to constant

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

This might be more useful if you did it in SelectionDAG::computeKnownBits - then it'd work for any case with common bits in every vector element and you'd get constant folding as well.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D132206/new/

https://reviews.llvm.org/D132206