re PR c++/57610 (Reference initialized with temporary instead of sub-object of conversion result)

2015-04-30  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/57610
	* g++.dg/init/ref22.C: New.

From-SVN: r222615

gcc/testsuite/ChangeLog

+2015-04-30  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/57610
+	* g++.dg/init/ref22.C: New.
+
 2015-04-30  Marek Polacek  <polacek@redhat.com>
 
 	* gcc.dg/init-bad-8.c: New test.

gcc/testsuite/g++.dg/init/ref22.C

+// PR c++/57610
+// { dg-do run }
+
+extern "C" void abort();
+
+struct A
+{
+  A() { }
+  A(const A&) { abort(); }
+};
+
+struct B : A { };
+
+struct X
+{
+  operator B() { return B(); }
+};
+
+int main()
+{
+  X x;
+  const A& r = x;
+}