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Handle "X + ~X" -> "-1" in the function Value *Reassociate::OptimizeAdd(Instruction *I, SmallVectorImpl<ValueEntry> &Ops); This patch implements: TODO: We could handle "X + ~X" -> "-1" if we wanted, since "-X = ~X+1". Patch by Rahul Jain! Differential Revision: http://reviews.llvm.org/D3835 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209973 91177308-0d34-0410-b5e6-96231b3b80d8
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