[PATCH] D36454: [X86] Changes to extract Horizontal addition operation for AVX-512.

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

Would we be better off focussing on developing the @llvm.experimental.vector.reduce.add.* intrinsics? Or looking to get slpvectorizer to do extract_subvector style shuffles as part of the reduction?


https://reviews.llvm.org/D36454