Shave another 27K off libllvmgcc.dylib with visibility hidden

llvm-svn: 28973
diff --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
index 9028248..0ef246b 100644
--- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
@@ -23,6 +23,7 @@
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetInstrInfo.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/Support/Visibility.h"
 #include "llvm/ADT/Statistic.h"
 #include <climits>
 #include <iostream>
@@ -36,7 +37,7 @@
 /// implementation.  This supports both top-down and bottom-up scheduling.
 ///
 
-class ScheduleDAGRRList : public ScheduleDAG {
+class VISIBILITY_HIDDEN ScheduleDAGRRList : public ScheduleDAG {
 private:
   /// isBottomUp - This is true if the scheduling problem is bottom-up, false if
   /// it is top-down.