Pass ProgramStateRef by reference.

Retain + Release on a ref counted pointer is cheap, but not free (it adds a function call in this case).

llvm-svn: 157534

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/include/clang/StaticAnalyzer/Core/PathSensitive/ExplodedGraph.h b/clang/include/clang/StaticAnalyzer/Core/PathSensitive/ExplodedGraph.h
index 46fbb88212e..40969d3fa24 100644
--- a/clang/include/clang/StaticAnalyzer/Core/PathSensitive/ExplodedGraph.h
+++ b/clang/include/clang/StaticAnalyzer/Core/PathSensitive/ExplodedGraph.h
@@ -151,7 +151,7 @@ public:
 
   static void Profile(llvm::FoldingSetNodeID &ID,
                       const ProgramPoint &Loc,
-                      ProgramStateRef state,
+                      const ProgramStateRef &state,
                       bool IsSink) {
     ID.Add(Loc);
     ID.AddPointer(state.getPtr());