re PR c++/68348 (ICE: segfault in cxx_eval_constant_expression at cp/constexpr.c:3172)

	PR c++/68348
	* g++.dg/cpp0x/pr68348.C: New test.

From-SVN: r231524

gcc/testsuite/ChangeLog

+2015-12-10  Marek Polacek  <polacek@redhat.com>
+
+	PR c++/68348
+	* g++.dg/cpp0x/pr68348.C: New test.
+
 2015-12-10  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* gnat.dg/specs/elab4.ads: New test.

gcc/testsuite/g++.dg/cpp0x/pr68348.C

+// PR c++/68348
+// { dg-do compile { target c++11 } }
+
+struct C {
+  constexpr C() : w(), x(), y() {}
+  constexpr double fn() const noexcept;
+  double w;
+  double x;
+  double y;
+};
+
+constexpr double C::fn() const noexcept { return w; }
+C foo()
+{
+  C c;
+  c.fn ();
+  return c;
+}