[PATCH] D92553: [ARM][X86] Match dual lane vmovs from insert_vector_elt

[Dave Green via Phabricator via llvm-commits]

dmgreen added a comment.

Hmm. Yeah there might be some code that relies on this but isn't tested. It was added in https://github.com/llvm/llvm-project/commit/f99dd64f0afd42c5fc51a11dea94a21e7d63cf8e, but that didn't have any tests itself.

I could probably just do this entirely in tablegen. There are only actually 5 patterns when you get down to it, so long as you know the nodes are in-order.. It's not very pretty, but I'll look into doing it that way.


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https://reviews.llvm.org/D92553