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

WangLian via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Aug 19 00:25:03 PDT 2022


Jimerlife added a comment.

In D132206#3734342 <https://reviews.llvm.org/D132206#3734342>, @dmgreen wrote:

> XOR will be 0 or val depending on if there are an even number of vector elements.
>
> Can you add some tests for both cases?

You are right, should consider element count. Thank you.


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