[PATCH] D83535: [IR] Disable select ? C : undef -> C fold in ConstantFoldSelectInstruction unless we know C isn't poison.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: efriedma, lebedev.ri, nlopes, spatel, reames.
Herald added subscribers: kerbowa, hiraditya, nhaehnle, jvesely.
Herald added a project: LLVM.

This matches the recent change to InstSimplify from D83440 <https://reviews.llvm.org/D83440>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D83535

Files:
  llvm/lib/IR/ConstantFold.cpp
  llvm/test/Transforms/InferAddressSpaces/AMDGPU/select.ll
  llvm/test/Transforms/InstSimplify/select.ll

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