[PATCH] D56421: [X86] Call SimplifyDemandedBits on conditions of X86ISD::SHRUNKBLEND

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

In D56421#1349790 <https://reviews.llvm.org/D56421#1349790>, @RKSimon wrote:

> Also, should we remove the similar SimplifyDemandedBits call in combineVSelectToShrunkBlend?


The one that decides when to turn VSELECT into SHRUNKBLEND? I don't think we can remove that. We might be able to merge this with it and turn SHRUNKBLEND into SHRUNKBLEND again if another simplification is made. That would probably help with cases where the condition is used multiple times.


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https://reviews.llvm.org/D56421