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

Tue Dec 22 07:44:16 PST 2020

aqjune added a comment.

In D93586#2467844 <https://reviews.llvm.org/D93586#2467844>, @RKSimon wrote:

> I'm sorry I've only just started looking at this - are you saying that you want to handle all "insertelement undef" cases in one go and not just a series of patcches after this one?

It will be treated in a series of patches. There are places other than SimplifyDemandedVectorElts that create `insertelement undef`. I'll create these and link them as children.

Repository:
  rG LLVM Github Monorepo

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

https://reviews.llvm.org/D93586