[PATCH] D13709: LegalizeDAG: Implement promote for build_vector

[Quentin Colombet via llvm-commits]

qcolombet added a comment.

> This isn't an optimization, and no in tree target is attempting to use Promote for build_vector currently.


Thanks for the clarifications. I was wondering if that new format makes sense as the canonical representation of that promotion. Now, when checking what we do for shuffles, it seems consistent so I guess this is fine.

LGTM.

Cheers,
-Quentin


http://reviews.llvm.org/D13709