PR c++/62096 - unexpected warning overflow in implicit constant conversion

gcc/testsuite/ChangeLog:
2016-03-08  Martin Sebor  <msebor@redhat.com>

        PR c++/62096 
        * g++.dg/warn/overflow-warn-7.C: New test.

From-SVN: r234075

gcc/testsuite/ChangeLog

+2016-03-08  Martin Sebor  <msebor@redhat.com>
+
+	PR c++/62096
+	* g++.dg/warn/overflow-warn-7.C: New test.
+
 2016-03-08  Jason Merrill  <jason@redhat.com>
 
 	* lib/g++-dg.exp (g++-dg-runtest): Handle "concepts" in std list.

gcc/testsuite/g++.dg/warn/overflow-warn-7.C

+// PR c/62096 - unexpected warning overflow in implicit constant conversion
+// { dg-do compile { target c++11 } }
+
+enum E {
+    E_val  = 1,
+};
+
+inline constexpr E operator~(E e)
+{
+  return E(~static_cast<int>(e));
+}
+
+int main()
+{
+  int val = ~E_val;   // { dg-bogus "overflow in implicit constant conversion" }
+  (void) val;
+}