diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug680217.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug680217.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,13 @@
+try {
+    for (var BUGNUMBER = 0, sz = Math.pow(2, 12); i < sz; i++)
+        str += '0,';
+} catch (exc1) {}
+var str = '[';
+for (var i = 0, BUGNUMBER; i < sz; i++)
+    str += '0,';
+var obj = {
+    p: { __proto__: null },
+};
+for (var i = 0; i < sz; i++)
+    str += '0,';
+gc();