[PATCH] D48485: [InstCombine] allow shl+mul combos with shuffle (select) fold (PR37806)

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

In https://reviews.llvm.org/D48485#1144839, @lebedev.ri wrote:

> Is this waiting for a review, or are there changes planned?
>
> The logic here seems sound.


My concern is how much this will get refactored as more cases detailed in PR37806 are added


https://reviews.llvm.org/D48485