[PATCH] D103323: [DAGCombiner] Add support for mulhi const folding in DAGCombiner

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

In D103323#2823907 <https://reviews.llvm.org/D103323#2823907>, @dstuttard wrote:

> Updating for review comments.
>
> Tests still to be added...

Do you have any in mind? I can add SSE2 vector examples if that would help? But scalars are trickier


Repository:
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https://reviews.llvm.org/D103323