[PATCH] D93586: [InstCombine] use poison as placeholder for undemanded elems

[Juneyoung Lee via Phabricator via cfe-commits]

aqjune added a comment.

I'll make two more patches - the instsimplify/vectorizer/.... changes that make insertelement poison, and the langref update to shufflevector.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D93586/new/

https://reviews.llvm.org/D93586