[PATCH] D80906: [DAG] SimplifyDemandedVectorElts Bugfix for X86ISD::VBROADCAST calculating wrong DemandedElts for its Operand

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

Broadcast should only demand the lowest element. The recursive call to SimplifyDemandedVectorElts call is supposed to ignore the incoming DemandedElts if the SDValue has more than one use.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D80906/new/

https://reviews.llvm.org/D80906