Reduce number of exported symbols

llvm-svn: 29220
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 241801c..a46ad1a 100644
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -42,7 +42,7 @@
 using namespace llvm;
 
 namespace {
-  Statistic<> NodesCombined ("dagcombiner", "Number of dag nodes combined");
+  static Statistic<> NodesCombined ("dagcombiner", "Number of dag nodes combined");
 
   class VISIBILITY_HIDDEN DAGCombiner {
     SelectionDAG &DAG;