diff --git a/llvm/lib/Analysis/RegionInfo.cpp b/llvm/lib/Analysis/RegionInfo.cpp
index 6f38dcc9681c..5c9985223162 100644
--- a/llvm/lib/Analysis/RegionInfo.cpp
+++ b/llvm/lib/Analysis/RegionInfo.cpp
@@ -29,9 +29,9 @@ using namespace llvm;
 
 // Always verify if expensive checking is enabled.
 #ifdef XDEBUG
-bool VerifyRegionInfo = true;
+static bool VerifyRegionInfo = true;
 #else
-bool VerifyRegionInfo = false;
+static bool VerifyRegionInfo = false;
 #endif
 
 static cl::opt<bool,true>
diff --git a/llvm/lib/Analysis/RegionPrinter.cpp b/llvm/lib/Analysis/RegionPrinter.cpp
index c657143da7fa..67ce05a52f3a 100644
--- a/llvm/lib/Analysis/RegionPrinter.cpp
+++ b/llvm/lib/Analysis/RegionPrinter.cpp
@@ -151,6 +151,8 @@ char RegionPrinter::ID = 0;
 INITIALIZE_PASS(RegionPrinter, "dot-regions",
                 "Print regions of function to 'dot' file", true, true);
 
+namespace {
+
 struct RegionOnlyPrinter
   : public DOTGraphTraitsPrinter<RegionInfo, true> {
   static char ID;
@@ -158,6 +160,8 @@ struct RegionOnlyPrinter
     DOTGraphTraitsPrinter<RegionInfo, true>("reg", &ID) {}
 };
 
+}
+
 char RegionOnlyPrinter::ID = 0;
 INITIALIZE_PASS(RegionOnlyPrinter, "dot-regions-only",
                 "Print regions of function to 'dot' file "