re PR c++/42059 ([c++0x] ICE with initializer list for VLA)

	PR c++/42059
	* typeck.c (cp_build_modify_expr): For initializer list call
	check_array_initializer to make sure lhs isn't a VLA.

	* g++.dg/cpp0x/initlist26.C: New test.

From-SVN: r154237

gcc/cp/ChangeLog

+2009-11-17  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/42059
+	* typeck.c (cp_build_modify_expr): For initializer list call
+	check_array_initializer to make sure lhs isn't a VLA.
+
 2009-11-16  Jason Merrill  <jason@redhat.com>
 
 	PR c++/189, c++/9937, c++/13950, DR 176

gcc/cp/typeck.c

@@ -6239,7 +6239,11 @@ cp_build_modify_expr (tree lhs, enum tree_code modifycode, tree rhs,
       int from_array;
 
       if (BRACE_ENCLOSED_INITIALIZER_P (rhs))
-	rhs = digest_init (lhstype, rhs);
+	{
+	  if (check_array_initializer (lhs, lhstype, rhs))
+	    return error_mark_node;
+	  rhs = digest_init (lhstype, rhs);
+	}
 
       else if (!same_or_base_type_p (TYPE_MAIN_VARIANT (lhstype),
 				     TYPE_MAIN_VARIANT (TREE_TYPE (rhs))))

gcc/testsuite/ChangeLog

+2009-11-17  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/42059
+	* g++.dg/cpp0x/initlist26.C: New test.
+
 2009-11-16  Jason Merrill  <jason@redhat.com>
 
 	PR c++/189, c++/9937, c++/13950, DR 176

gcc/testsuite/g++.dg/cpp0x/initlist26.C

+// PR c++/42059
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+void
+foo (int i)
+{
+  int a[i];
+  a = { }; // { dg-error "may not be initialized" }
+}