Reduce number of exported symbols


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29220 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp
index fa3ceff..c778a92 100644
--- a/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -45,11 +45,11 @@
 using namespace llvm;
 
 namespace {
-  Statistic<> NumTwoAddressInstrs("twoaddressinstruction",
+  static Statistic<> NumTwoAddressInstrs("twoaddressinstruction",
                                   "Number of two-address instructions");
-  Statistic<> NumCommuted("twoaddressinstruction",
+  static Statistic<> NumCommuted("twoaddressinstruction",
                           "Number of instructions commuted to coalesce");
-  Statistic<> NumConvertedTo3Addr("twoaddressinstruction",
+  static Statistic<> NumConvertedTo3Addr("twoaddressinstruction",
                                 "Number of instructions promoted to 3-address");
 
   struct VISIBILITY_HIDDEN TwoAddressInstructionPass