It caused MSP430DAGToDAGISel::SelectIndexedBinOp() to be miscompiled.
When two ReplaceUses()'s are expanded as inline, vtable in base class is stored to latter (ISelUpdater)ISU.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152877 91177308-0d34-0410-b5e6-96231b3b80d8