re PR c++/84813 (internal compiler error: Segmentation fault with lambdas and constexpr variables)

	PR c++/84813
	* g++.dg/debug/pr84813.C: New test.

From-SVN: r258445

gcc/testsuite/ChangeLog

+2018-03-12  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/84813
+	* g++.dg/debug/pr84813.C: New test.
+
 2018-03-11  Paul Thomas  <pault@gcc.gnu.org>
 
 	PR fortran/84546
-	* gfortran.dg/unlimited_polymorphic_29.f90 : New test.
+	* gfortran.dg/unlimited_polymorphic_29.f90: New test.
 
 2018-03-11  Steven G. Kargl  <kargl@gcc.gnu.org>
 

gcc/testsuite/g++.dg/debug/pr84813.C

+// PR c++/84813
+// { dg-do compile }
+// { dg-options "-g -std=c++14" }
+
+template <typename>
+struct P {};
+
+template <int>
+struct F {
+  using type = int;
+};
+
+template <typename T>
+void
+apply ()
+{
+  constexpr int N = T::N;
+  [] (typename F<N>::type)
+  {
+    auto f = [] () {};
+    P<decltype (f)>{};
+  };
+}
+
+struct A {
+  static constexpr int N = 1;
+};
+
+void
+instantiate ()
+{
+  apply<A> ();
+}