1f4a2713aSLionel Sambuc // RUN: %clang_cc1 -emit-llvm -triple x86_64-apple-darwin10.0.0 -o - %s | FileCheck %s 2f4a2713aSLionel Sambuc 3f4a2713aSLionel Sambuc // PR7050 4f4a2713aSLionel Sambuc template<class T> struct X0 : public T { }; 5f4a2713aSLionel Sambuc 6f4a2713aSLionel Sambuc template <class T> 7f4a2713aSLionel Sambuc struct X1 8f4a2713aSLionel Sambuc { 9f4a2713aSLionel Sambuc static T & instance; 10f4a2713aSLionel Sambuc // include this to provoke instantiation at pre-execution time useX111f4a2713aSLionel Sambuc static void use(T const &) {} getX112f4a2713aSLionel Sambuc static T & get() { 13f4a2713aSLionel Sambuc static X0<T> t; 14f4a2713aSLionel Sambuc use(instance); 15f4a2713aSLionel Sambuc return static_cast<T &>(t); 16f4a2713aSLionel Sambuc } 17f4a2713aSLionel Sambuc }; 18f4a2713aSLionel Sambuc 19*0a6a1f1dSLionel Sambuc // CHECK: @_ZN2X1I2X2I1BEE8instanceE = linkonce_odr global %struct.X2* null, align 8 20*0a6a1f1dSLionel Sambuc // CHECJ: @_ZN2X1I2X2I1AEE8instanceE = linkonce_odr global %struct.X2* null, align 8 21f4a2713aSLionel Sambuc template<class T> T & X1<T>::instance = X1<T>::get(); 22f4a2713aSLionel Sambuc 23f4a2713aSLionel Sambuc class A { }; 24f4a2713aSLionel Sambuc class B : public A { }; 25f4a2713aSLionel Sambuc 26f4a2713aSLionel Sambuc template<typename T> struct X2 {}; 27f4a2713aSLionel Sambuc X2< B > bg = X1< X2< B > >::get(); 28f4a2713aSLionel Sambuc X2< A > ag = X1< X2< A > >::get(); 29