diff --git a/llvm/lib/CodeGen/FixupStatepointCallerSaved.cpp b/llvm/lib/CodeGen/FixupStatepointCallerSaved.cpp
index cdcac1f..8a4877e 100644
--- a/llvm/lib/CodeGen/FixupStatepointCallerSaved.cpp
+++ b/llvm/lib/CodeGen/FixupStatepointCallerSaved.cpp
@@ -82,6 +82,7 @@
   return TRI.getSpillSize(*RC);
 }
 
+namespace {
 // Cache used frame indexes during statepoint re-write to re-use them in
 // processing next statepoint instruction.
 // Two strategies. One is to preserve the size of spill slot while another one
@@ -282,6 +283,7 @@
     return true;
   }
 };
+} // namespace
 
 bool FixupStatepointCallerSaved::runOnMachineFunction(MachineFunction &MF) {
   if (skipFunction(MF.getFunction()))