[PATCH] D123118: [InstCombine] SimplifyDemandedUseBits - remove lshr node if we only demand known sign bit

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

LGTM, thanks.



================
Comment at: llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp:556
   }
   case Instruction::Shl: {
     const APInt *SA;
----------------
I believe the same applies here.


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  rG LLVM Github Monorepo

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https://reviews.llvm.org/D123118