diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_5/Regress/regress-69607.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_5/Regress/regress-69607.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/. */
+
+/*
+ * Date: 21 Feb 2001
+ * See http://bugzilla.mozilla.org/show_bug.cgi?id=69607
+ *
+ * SUMMARY:  testing that we don't crash on trivial JavaScript
+ *
+ */
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 69607;
+var summary = "Testing that we don't crash on trivial JavaScript";
+var var1;
+var var2;
+var var3;
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+/*
+ * The crash this bug reported was caused by precisely these lines
+ * placed in top-level code (i.e. not wrapped inside a function) -
+ */
+if(false)
+{
+  var1 = 0;
+}
+else
+{
+  var2 = 0;
+}
+
+if(false)
+{
+  var3 = 0;
+}
+
+reportCompare('No Crash', 'No Crash', '');
+