[PATCH] D92270: [ConstantFold] Fold more operations to poison

[Matthias Braun via Phabricator via llvm-commits]

MatzeB added inline comments.


================
Comment at: llvm/lib/IR/ConstantFold.cpp:633
         // the input constant.
-        return UndefValue::get(DestTy);
+        return PoisonValue::get(DestTy);
       }
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I believe this is causing some of our clients trouble, especially since we somehow have a `-fno-strict-float-cast-overflow` flag in clang that says float->int overflows are not UB... (CC @spatel )


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D92270/new/

https://reviews.llvm.org/D92270