diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/auto-regress/bug489040.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/auto-regress/bug489040.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,4 @@
+// Binary: cache/js-dbg-32-c319b49e2880-linux
+// Flags: -j
+//
+for (var y = 0; y < 2; ++y) { (/x/)[this] }