diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug799185-8.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug799185-8.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,19 @@
+// |jit-test| error: TypeError
+function testBitOrInconvertibleObjectInconvertibleObject() {
+  var o1 = {};
+  var count2 = 0;
+  function toString2() {
+        ++count2;
+        if (count2 == 95) return {};
+  }
+  var o2 = { toString: toString2 };
+  try {
+    for (var i = 0; i < 100; i++)
+        var q = o1 | o2;
+  } catch (e)  {
+    if (i !== 94)
+      return gc();
+    this.bar.foo ^ this
+  }
+}
+testBitOrInconvertibleObjectInconvertibleObject()