re PR c++/59268 ([c++11] ICE with constexpr in a virtual function)

	PR c++/59268
	* pt.c (tsubst_copy_and_build): Handle POINTER_PLUS_EXPR.

	* g++.dg/cpp0x/constexpr-template6.C: New test.

From-SVN: r205674

gcc/cp/ChangeLog

+2013-12-04  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/59268
+	* pt.c (tsubst_copy_and_build): Handle POINTER_PLUS_EXPR.
+
 2013-11-29  Marek Polacek  <polacek@redhat.com>
 
 	PR sanitizer/59331

gcc/cp/pt.c

@@ -14159,6 +14159,10 @@ tsubst_copy_and_build (tree t,
 	RETURN (r);
       }
 
+    case POINTER_PLUS_EXPR:
+      return fold_build_pointer_plus (RECUR (TREE_OPERAND (t, 0)),
+				      RECUR (TREE_OPERAND (t, 1)));
+
     case SCOPE_REF:
       RETURN (tsubst_qualified_id (t, args, complain, in_decl, /*done=*/true,
 				  /*address_p=*/false));

gcc/testsuite/ChangeLog

+2013-12-04  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/59268
+	* g++.dg/cpp0x/constexpr-template6.C: New test.
+
 2013-12-04  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* gnat.dg/pack19.adb: New test.

gcc/testsuite/g++.dg/cpp0x/constexpr-template6.C

+// PR c++/59268
+// { dg-do compile }
+// { dg-options "-std=c++11" }
+
+template <typename>
+struct A
+{
+  constexpr A (int) {}
+  virtual void foo ()
+  {
+    constexpr A<void> a (0);
+  }
+};
+
+void
+bar ()
+{
+  A<int> a (3);
+  a.foo ();
+}