[PATCH] D80906: [DAG] SimplifyDemandedVectorElts Bugfix for X86ISD::VBROADCAST calculating wrong DemandedElts for its Operand
Craig Topper via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sun May 31 21:18:12 PDT 2020
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
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