diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testUndemoteLateGlobalSlots.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testUndemoteLateGlobalSlots.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,11 @@
+function testUndemoteLateGlobalSlots() {
+    for each (aaa in ["", "", 0/0, ""]) {
+        ++aaa;
+        for each (bbb in [0, "", aaa, "", 0, "", 0/0]) {
+        }
+    }
+    delete aaa;
+    delete bbb;
+    return "ok";
+}
+assertEq(testUndemoteLateGlobalSlots(), "ok");