Put back removed line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132725 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsISelDAGToDAG.cpp b/lib/Target/Mips/MipsISelDAGToDAG.cpp
index 4acd732..d8a84ce 100644
--- a/lib/Target/Mips/MipsISelDAGToDAG.cpp
+++ b/lib/Target/Mips/MipsISelDAGToDAG.cpp
@@ -356,6 +356,7 @@
                                   LHS, SDValue(AddCarry,0));
     }
 
+    /// Mul with two results
     case ISD::SMUL_LOHI:
     case ISD::UMUL_LOHI: {
       SDValue Op1 = Node->getOperand(0);