[PATCH] D94444: [RFC][Scalable] Add scalable shuffle intrinsic to extract evens from a pair of vectors

[David Sherwood via Phabricator via llvm-commits]

david-arm added a comment.

Hi all, this is just a thought and I hope I'm not confusing things further (!), but we could also have something like:

llvm.experimental.vector.deinterleave.even/odd
llvm.experimental.vector.interleave.lo/hi

since we are actually performing deinterleaving operations in this patch and I assume we'll want the matching interleaving ops at some point too? If you wanted to reduce the number of intrinsics, ISD opcodes you could also have the even/odd as a third flag, i.e.

llvm.experimental.vector.deinterleave(<>,<>, i1)

although I'm happy with separate intrinsics/opcodes too!

For what it's worth if we stick with something like llvm.experimental.vector.extract.even(s) I agree with Sander and would prefer to drop the 's' at the end.


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