diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 6b878c5f319..b2a9a3c4d92 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,8 @@
 2010-07-14  Jason Merrill  <jason@redhat.com>
 
+	PR c++/44810
+	* g++.dg/torture/pr36745.C: Avoid undefined behavior.
+
 	Implement C++0x unrestricted unions (N2544)
 	* g++.dg/cpp0x/union1.C: New.
 	* g++.dg/cpp0x/union2.C: New.
diff --git a/gcc/testsuite/g++.dg/torture/pr36745.C b/gcc/testsuite/g++.dg/torture/pr36745.C
index 86047f1f0d8..53845aaa78e 100644
--- a/gcc/testsuite/g++.dg/torture/pr36745.C
+++ b/gcc/testsuite/g++.dg/torture/pr36745.C
@@ -52,6 +52,7 @@ public: inline QMap ():d (&QMapData::shared_null)
 };
 struct QVectorData
 {
+  QBasicAtomicInt ref;
   static QVectorData shared_null;
 };
 template < typename T > struct QVectorTypedData