[PATCH] D94708: [IR] Introduce llvm.experimental.vector.splice intrinsic

[Florian Hahn via Phabricator via llvm-commits]

fhahn added a comment.

Are there plans to use this for fixed vectors as well? If not, can this be restricted to scalable vectors only? It seems like for fixed vectors, preferring the `shufflevector` versions would be beneficial, to avoid having to update all transforms lookin at shuffles.

Otherwise, this should probably have some tests for platforms other than AArch64 and also support in GlobalISel, which is the default on AArch64 with `-O0` IIRC (or do the transform to shuffles as an IR transform).


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  https://reviews.llvm.org/D94708/new/

https://reviews.llvm.org/D94708