[PATCH] D79987: [DAG] SimplifyDemandedVectorElts Bug fix for rG7cb5a51f386d

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

Investigating further, I think adding a SimplifyMultipleUseDemandedBits call in the X86ISD::VBROADCAST case at the beginning of SimplifyDemandedVectorEltsForTargetNode would be a better solution going forward, and will help with the codegen in your test case. See the X86ISD::PACKS case for an example.


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https://reviews.llvm.org/D79987