[DAG] PromoteIntRes_EXTRACT_SUBVECTOR - pull out repeated getOperand/getVectorElementType calls. NFC.

Author: RKSimon

llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp

@@ -5724,21 +5724,20 @@ SDValue DAGTypeLegalizer::PromoteIntRes_EXTRACT_SUBVECTOR(SDNode *N) {
 
   SDValue InOp0 = N->getOperand(0);
   if (getTypeAction(InOp0.getValueType()) == TargetLowering::TypePromoteInteger)
-    InOp0 = GetPromotedInteger(N->getOperand(0));
+    InOp0 = GetPromotedInteger(InOp0);
 
   EVT InVT = InOp0.getValueType();
+  EVT InSVT = InVT.getVectorElementType();
 
   unsigned OutNumElems = OutVT.getVectorNumElements();
   SmallVector<SDValue, 8> Ops;
   Ops.reserve(OutNumElems);
   for (unsigned i = 0; i != OutNumElems; ++i) {
-
     // Extract the element from the original vector.
-    SDValue Index = DAG.getNode(ISD::ADD, dl, BaseIdx.getValueType(),
-      BaseIdx, DAG.getConstant(i, dl, BaseIdx.getValueType()));
-    SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl,
-      InVT.getVectorElementType(), N->getOperand(0), Index);
-
+    SDValue Index = DAG.getNode(ISD::ADD, dl, BaseIdx.getValueType(), BaseIdx,
+                                DAG.getConstant(i, dl, BaseIdx.getValueType()));
+    SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, InSVT,
+                              N->getOperand(0), Index);
     SDValue Op = DAG.getAnyExtOrTrunc(Ext, dl, NOutVTElem);
     // Insert the converted element to the new vector.
     Ops.push_back(Op);