[PATCH] D38307: [X86] Support v64i8 mulhu/mulhs

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

> I'm not 100% sure I got the required shuffled mask correct here.

I think they're correct, but would be much happier if somebody could test it.


https://reviews.llvm.org/D38307