re PR c++/64383 (missed warning for unused variable.)

2015-01-20  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/64383
	* g++.dg/warn/Wunused-var-23.C: New.

From-SVN: r219896

gcc/testsuite/ChangeLog

 2015-01-20  Paolo Carlini  <paolo.carlini@oracle.com>
 
+	PR c++/64383
+	* g++.dg/warn/Wunused-var-23.C: New.
+
+2015-01-20  Paolo Carlini  <paolo.carlini@oracle.com>
+
 	PR c++/59937
 	* g++.dg/cpp0x/constexpr-59937-1.C: New.
 	* g++.dg/cpp0x/constexpr-59937-2.C: Likewise.

gcc/testsuite/g++.dg/warn/Wunused-var-23.C

+// PR c++/64383
+// { dg-options "-Wunused-variable" }
+
+struct Y
+{
+    ~Y();
+};
+
+struct X
+{
+    static Y& get();
+};
+
+int main()
+{
+    Y& y = X::get();  // { dg-warning "unused" }
+}