[PATCH] D152658: [InstCombine] Change SimplifyDemandedVectorElts to use PoisonElts instead of UndefElts

[Juneyoung Lee via Phabricator via cfe-commits]

aqjune added inline comments.


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Comment at: llvm/lib/Transforms/InstCombine/InstructionCombining.cpp:1653
-      if (ShMask[I] >= 0) {
-        assert(ShMask[I] < (int)NumElts && "Not expecting narrowing shuffle");
         Constant *NewCElt = NewVecC[ShMask[I]];
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aqjune wrote:
> This seems to be 
Nevermind, please ignore this comment.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D152658/new/

https://reviews.llvm.org/D152658