| Douglas Gregor | c446d18 | 2010-05-05 20:15:55 +0000 | [diff] [blame^] | 1 | // RUN: %clang_cc1 -emit-llvm -triple x86_64-apple-darwin10.0.0 -o - %s | FileCheck %s |
| 2 | |
| 3 | // PR7050 |
| 4 | template<class T> struct X0 : public T { }; |
| 5 | |
| 6 | template <class T> |
| 7 | struct X1 |
| 8 | { |
| 9 | static T & instance; |
| 10 | // include this to provoke instantiation at pre-execution time |
| 11 | static void use(T const &) {} |
| 12 | static T & get() { |
| 13 | static X0<T> t; |
| 14 | use(instance); |
| 15 | return static_cast<T &>(t); |
| 16 | } |
| 17 | }; |
| 18 | |
| 19 | // CHECK: @_ZN2X1I2X2I1BEE8instanceE = weak global %struct.X0* null, align 8 |
| 20 | // CHECJ: @_ZN2X1I2X2I1AEE8instanceE = weak global %struct.X0* null, align 8 |
| 21 | template<class T> T & X1<T>::instance = X1<T>::get(); |
| 22 | |
| 23 | class A { }; |
| 24 | class B : public A { }; |
| 25 | |
| 26 | template<typename T> struct X2 {}; |
| 27 | X2< B > bg = X1< X2< B > >::get(); |
| 28 | X2< A > ag = X1< X2< A > >::get(); |