[PATCH] D51589: DAG: Fold extract_vector_elt (scalar_to_vector), K to undef

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In https://reviews.llvm.org/D51589#1228234, @RKSimon wrote:

> > Avoids regressions in a future commit.
>
> Do you have the patch available to show the test case?


I think this was for https://reviews.llvm.org/D51736, but I somehow ended up avoiding needing this to avoid regressions.


https://reviews.llvm.org/D51589