Index: llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
===================================================================
--- llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -5566,7 +5566,7 @@
     // the concat have the same type as the extract.
     if (N2C && N1.getOpcode() == ISD::CONCAT_VECTORS &&
         N1.getNumOperands() > 0 && VT == N1.getOperand(0).getValueType()) {
-      unsigned Factor = VT.getVectorNumElements();
+      unsigned Factor = VT.getVectorMinNumElements();
       return N1.getOperand(N2C->getZExtValue() / Factor);
     }