[PATCH] D21156: [X86] Add costs for SSE zext/sext to v4i64 to TTI

[Simon Pilgrim via llvm-commits]

RKSimon accepted this revision.
RKSimon added a comment.
This revision is now accepted and ready to land.

Thanks I get that now - please can you either add a descriptive TODO comment or raise a BZ explaining why this isn't working.

Other than that, we already have plenty of costs that are in similar situations, so LGTM.


http://reviews.llvm.org/D21156