Commit this, which should have accompanied 101531.

llvm-svn: 101532
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 1afb418..c3adab2 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -3223,7 +3223,8 @@
   // indicates whether the memcpy source is constant so it does not need to be
   // loaded.
   EVT VT = TLI.getOptimalMemOpType(Size, DstAlign, SrcAlign,
-                                   NonScalarIntSafe, MemcpyStrSrc, DAG);
+                                   NonScalarIntSafe, MemcpyStrSrc,
+                                   DAG.getMachineFunction());
 
   if (VT == MVT::Other) {
     if (DstAlign >= TLI.getTargetData()->getPointerPrefAlignment() ||