diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/auto-regress/bug589093.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/auto-regress/bug589093.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,9 @@
+// Binary: cache/js-dbg-32-b22e82ce2364-linux
+// Flags: -j
+//
+x = (w for (x in []))
+for (w in [0, 0, 0, 0]) {
+    (function() {
+        [c for (z in x)]
+    })()
+}