diff --git a/js/tests/ecma_3/Function/regress-85880.js b/js/tests/ecma_3/Function/regress-85880.js
new file mode 100644
index 000000000000..52c21255b994
--- /dev/null
+++ b/js/tests/ecma_3/Function/regress-85880.js
@@ -0,0 +1,130 @@
+/*
+* The contents of this file are subject to the Netscape Public
+* License Version 1.1 (the "License"); you may not use this file
+* except in compliance with the License. You may obtain a copy of
+* the License at http://www.mozilla.org/NPL/
+*
+* Software distributed under the License is distributed on an "AS
+* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+* implied. See the License for the specific language governing
+* rights and limitations under the License.
+*
+* The Original Code is mozilla.org code.
+*
+* The Initial Developer of the Original Code is Netscape
+* Communications Corporation.  Portions created by Netscape are
+* Copyright (C) 1998 Netscape Communications Corporation.
+* All Rights Reserved.
+*
+* Contributor(s): pschwartau@netscape.com
+* Date: 2001-06-14
+*
+* SUMMARY: Regression test for Bugzilla bug 85880
+*
+* Rhino interpreted mode was nulling out the arguments object of a
+* function if  it happened to call another function inside its body.
+*
+* See http://bugzilla.mozilla.org/show_bug.cgi?id=85880
+*
+*/
+//-------------------------------------------------------------------------------------------------
+var UBound = 0;
+var bug = 85880;
+var summary = 'Arguments object of g(){f()} should not be null ';
+var cnNonNull = 'Arguments != null';
+var cnNull = 'Arguments == null';
+var status = '';
+var statusitems = [ ];
+var actual = '';
+var actualvalues = [ ];
+var expect= '';
+var expectedvalues = [ ];
+
+
+function f1(x)
+{
+}
+
+
+function f2()
+{
+  return f2.arguments;
+}
+status = 'Section A of test';
+actual = (f2() == null);
+expect = false;
+addThis();
+
+status = 'Section B of test';
+actual = (f2(0) == null);
+expect = false;
+addThis();
+
+
+function f3()
+{
+  f1();
+  return f3.arguments;
+}
+status = 'Section C of test';
+actual = (f3() == null);
+expect = false;
+addThis();
+
+status = 'Section D of test';
+actual = (f3(0) == null);
+expect = false;
+addThis();
+
+function f4()
+{
+  f1();
+  f2();
+  f3();
+  return f4.arguments;
+}
+status = 'Section E of test';
+actual = (f4() == null);
+expect = false;
+addThis();
+
+status = 'Section F of test';
+actual = (f4(0) == null);
+expect = false;
+addThis();
+
+
+
+//-------------------------------------------------------------------------------------------------
+test();
+//-------------------------------------------------------------------------------------------------
+
+
+function addThis()
+{
+  statusitems[UBound] = status;
+  actualvalues[UBound] = isThisNull(actual);
+  expectedvalues[UBound] = isThisNull(expect);
+  UBound++;
+}
+
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber (bug);
+  printStatus (summary);
+ 
+  for (var i = 0; i < UBound; i++)
+  {
+    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
+  }
+
+  exitFunc ('test');
+}
+
+
+function isThisNull(bool)
+{
+  return bool? cnNull : cnNonNull
+}