diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_5/Regress/regress-470061.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_5/Regress/regress-470061.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,45 @@
+/* -*- 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 = 470061;
+var summary = 'TM: Do not assert: cx->fp->regs->pc == f->ip && f->root == f';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  jit(true);
+ 
+  function x (w, z) {
+    var h = 0;
+    var q = 0;
+    while (q < 300) {
+      while (w) {
+      }
+      ++q;
+      if (q % 4 == 1) {
+        h = Math.ceil(z);
+      }
+    }
+  }
+
+  x(false, 40);
+
+  jit(false);
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}