diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/auto-regress/bug504516.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/auto-regress/bug504516.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,9 @@
+// Binary: cache/js-dbg-32-43a24a8896a3-linux
+// Flags: -j
+//
+for (d in [0, 0]) {
+    const a = (d -= (++d).toString())
+    for each(b in [Number(1) << d, 0, 0xC]) {
+        b / a
+    }
+}