[PATCH] D93990: [InstSimplify] Return poison if insertelement touches out of bounds

Nikita Popov via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Sun Jan 3 07:32:08 PST 2021


nikic added inline comments.


================
Comment at: llvm/lib/Analysis/InstructionSimplify.cpp:4403
       isGuaranteedNotToBeUndefOrPoison(Vec))
     return Vec;
 
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Unrelated, but we should probably have an explicit fold for poison `Val` here, in which case we don't need non-poison vec.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D93990/new/

https://reviews.llvm.org/D93990



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