diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/bug585391.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/bug585391.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,11 @@
+var x = (function () {
+    return [, , ]
+}());
+(function () {
+    while (x > 7 & 0) {
+        return
+    }
+}())
+
+/* Don't assert. */
+