diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_5/GC/regress-316885-02.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_5/GC/regress-316885-02.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,42 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 316885;
+var summary = 'Unrooted access in jsinterp.c';
+var actual = '';
+var expect = '';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+var str = "test";
+
+var lval = {
+  valueOf: function() {
+    return str+"1";
+  }
+};
+
+var ONE = 1;
+
+var rval = {
+  valueOf: function() {
+    // Make sure that the result of the previous lval.valueOf
+    // is not GC-rooted.
+    var tmp = "x"+lval;
+    if (typeof gc == "function")
+      gc();
+    for (var i = 0; i != 40000; ++i) {
+      tmp = 1e100 / ONE;
+    }
+    return str;
+  }
+};
+
+expect = (str+"1" > str);
+actual = (lval > rval);
+
+reportCompare(expect, actual, summary);