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0638609d66
After r203553 overflow intrinsics and their non-intrinsic (normal) instruction get hashed to the same value. This patch prevents PRE from moving an instruction into a predecessor block, and trying to add a phi node that gets two different types (the intrinsic result and the non-intrinsic result), resulting in a failing assert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203574 91177308-0d34-0410-b5e6-96231b3b80d8
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