Simplify code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64164 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
index 7b613d7..47335d3 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
@@ -2699,12 +2699,13 @@
         if (CI->getZExtValue() == 0) continue;
         uint64_t Offs =
             TD->getTypePaddedSize(Ty)*cast<ConstantInt>(CI)->getSExtValue();
-        SDValue OffsVal = DAG.getConstant(Offs, MVT::i64);
+        SDValue OffsVal;
         unsigned PtrBits = TLI.getPointerTy().getSizeInBits();
-        if (PtrBits < 64)
-          OffsVal = DAG.getNode(ISD::TRUNCATE, getCurDebugLoc(), 
-                                TLI.getPointerTy(), OffsVal);
-        else
+        if (PtrBits < 64) {
+          OffsVal = DAG.getNode(ISD::TRUNCATE, getCurDebugLoc(),
+                                TLI.getPointerTy(),
+                                DAG.getConstant(Offs, MVT::i64));
+        } else
           OffsVal = DAG.getIntPtrConstant(Offs);
         N = DAG.getNode(ISD::ADD, getCurDebugLoc(), N.getValueType(), N,
                         OffsVal);