[PATCH] D41865: X86: Fix LowerBUILD_VECTORAsVariablePermute for case Src is smaller than Indices

[Zvi Rackover via Phabricator via llvm-commits]

zvi added a comment.

In https://reviews.llvm.org/D41865#972023, @RKSimon wrote:

> In https://reviews.llvm.org/D41865#971307, @zvi wrote:
>
> > Sure, but looking at your example the return type should have the same number of elements as the indices vector, right?
>
>
> Yup, sorry for the typo. Are you intending to support cases like this?


Will need to think about how/if it can be done. AVX512 masking could make it easier.
Right now i would like to prioritize fixing broken functionality...


https://reviews.llvm.org/D41865