Add lowering for global address nodes. Not pretty efficient though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70730 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/MSP430/MSP430ISelLowering.h b/lib/Target/MSP430/MSP430ISelLowering.h
index 9e18cb0..a1f03ac 100644
--- a/lib/Target/MSP430/MSP430ISelLowering.h
+++ b/lib/Target/MSP430/MSP430ISelLowering.h
@@ -32,7 +32,11 @@
 
       /// CALL/TAILCALL - These operations represent an abstract call
       /// instruction, which includes a bunch of information.
-      CALL
+      CALL,
+
+      /// Wrapper - A wrapper node for TargetConstantPool, TargetExternalSymbol,
+      /// and TargetGlobalAddress.
+      Wrapper
     };
   }
 
@@ -55,6 +59,7 @@
     SDValue LowerRET(SDValue Op, SelectionDAG &DAG);
     SDValue LowerCCCArguments(SDValue Op, SelectionDAG &DAG);
     SDValue LowerShifts(SDValue Op, SelectionDAG &DAG);
+    SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG);
 
     SDValue LowerCCCCallTo(SDValue Op, SelectionDAG &DAG,
                            unsigned CC);