--- /dev/null
+// PR c++/56291
+// { dg-options -std=c++11 }
+
+class Base
+{
+public:
+ constexpr Base() : v(1) {};
+ int v;
+};
+
+class Derived : public Base
+{
+public:
+ constexpr Derived() : Base() {};
+ virtual void function();
+};
+
+Derived d;