diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/stringSplitTest.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/stringSplitTest.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,9 @@
+function stringSplitTest()
+{
+  var s = "a,b"
+  var a = null;
+  for (var i = 0; i < 10; ++i)
+    a = s.split(",");
+  return a.join();
+}
+assertEq(stringSplitTest(), "a,b");