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      1 // RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
      2 
      3 // CHECK: Outer5Inner{{.*}}localE6memberE = external global
      4 
      5 template<typename T> struct A {
      6   virtual void f(T) { }
      7   inline void g() { }
      8 };
      9 
     10 // Explicit instantiations have external linkage.
     11 
     12 // CHECK-LABEL: define weak_odr void @_ZN1AIiE1gEv(
     13 template void A<int>::g();
     14 
     15 // CHECK-LABEL: define weak_odr void @_ZN1AIfE1fEf(
     16 // CHECK-LABEL: define weak_odr void @_ZN1AIfE1gEv(
     17 // FIXME: This should also emit the vtable.
     18 template struct A<float>;
     19 
     20 // CHECK-LABEL: define weak_odr void @_Z1fIiEvT_
     21 template <typename T> void f(T) { }
     22 template void f<int>(int);
     23 
     24 // CHECK-LABEL: define weak_odr void @_Z1gIiEvT_
     25 template <typename T> inline void g(T) { }
     26 template void g<int>(int);
     27 
     28 template<typename T>
     29 struct X0 {
     30   virtual ~X0() { }
     31 };
     32 
     33 template<typename T>
     34 struct X1 : X0<T> {
     35   virtual void blarg();
     36 };
     37 
     38 template<typename T> void X1<T>::blarg() { }
     39 
     40 extern template struct X0<char>;
     41 extern template struct X1<char>;
     42 
     43 // CHECK-LABEL: define linkonce_odr void @_ZN2X1IcED1Ev(%struct.X1* %this) unnamed_addr
     44 void test_X1() {
     45   X1<char> i1c;
     46 }
     47 
     48 namespace PR14825 {
     49 struct Outer {
     50   template <typename T> struct Inner {
     51     static int member;
     52   };
     53   template <typename T> void Get() {
     54     int m = Inner<T>::member;
     55   }
     56 };
     57 
     58 void test() {
     59   struct local {};
     60   Outer o;
     61   typedef void (Outer::*mptr)();
     62   mptr method = &Outer::Get<local>;
     63 }
     64 }
     65