re PR c++/52875 (ADL failure + ICE in decltype)

2014-05-17  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/52875
	* g++.dg/cpp0x/decltype58.C: New.

From-SVN: r210562

gcc/testsuite/ChangeLog

+2014-05-17  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/52875
+	* g++.dg/cpp0x/decltype58.C: New.
+
 2014-05-17  Marc Glisse  <marc.glisse@inria.fr>
 
 	PR tree-optimization/61140

gcc/testsuite/g++.dg/cpp0x/decltype58.C

+// PR c++/52875
+// { dg-do compile { target c++11 } }
+
+struct A
+{
+  friend void swap(A&,A&)  {}
+};
+
+class B
+{
+  A a;
+    
+  template <class T>
+  friend auto swap(T& x, T& y) -> decltype(swap(x.a,y.a))
+  {
+    swap(x.a,y.a);
+  }
+};
+
+int main()
+{
+  B x, y;
+  swap(x, y);
+}