re PR c++/51619 ([c++0x] [4.6 Regression] ICE with array class member)

	PR c++/51619
	* semantics.c (cxx_eval_vec_init_1): If init is NULL for
	multidimensional array, just set eltinit to NULL_TREE.

	* g++.dg/cpp0x/pr51619.C: New test.

From-SVN: r182485

gcc/cp/ChangeLog

 2011-12-19  Jakub Jelinek  <jakub@redhat.com>
 
+	PR c++/51619
+	* semantics.c (cxx_eval_vec_init_1): If init is NULL for
+	multidimensional array, just set eltinit to NULL_TREE.
+
 	* cp-gimplify.c (gimplify_must_not_throw_expr): Use
 	gimple_seq_add_stmt_without_update instead of gimplify_seq_add_stmt.
 

gcc/cp/semantics.c

@@ -7065,7 +7065,7 @@ cxx_eval_vec_init_1 (const constexpr_call *call, tree atype, tree init,
       if (TREE_CODE (elttype) == ARRAY_TYPE)
 	{
 	  /* A multidimensional array; recurse.  */
-	  if (value_init)
+	  if (value_init || init == NULL_TREE)
 	    eltinit = NULL_TREE;
 	  else
 	    eltinit = cp_build_array_ref (input_location, init, idx,

gcc/testsuite/ChangeLog

+2011-12-19  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/51619
+	* g++.dg/cpp0x/pr51619.C: New test.
+
 2011-12-19  Tobias Burnus  <burnus@net-b.de>
 
 	PR fortran/51605

gcc/testsuite/g++.dg/cpp0x/pr51619.C

+// PR c++/51619
+// { dg-do compile }
+// { dg-options "-std=c++0x" }
+
+struct A { virtual ~A(); };
+struct B { A a[1][1]; } b;
+struct C { A a[3][3]; } c;