While replacing all uses of a SDValue with another value, do not forget to transfer SDDbgValue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131907 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/SelectionDAG/SelectionDAG.cpp

@@ -5150,6 +5150,9 @@ void SelectionDAG::ReplaceAllUsesWith(SDValue FromN, SDValue To,
          "Cannot replace with this method!");
   assert(From != To.getNode() && "Cannot replace uses of with self");
 
+  // Transfer debug values.
+  TransferDbgValues(FromN, To);
+
   // Iterate over all the existing uses of From. New uses will be added
   // to the beginning of the use list, which we avoid visiting.
   // This specifically avoids visiting uses of From that arise while the