diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug725000.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug725000.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,9 @@
+function f(s) {
+    var q;
+    for (var i = 0; i < 10000; i++)
+        q = ~s;
+    return q;
+}
+var obj = { valueOf: function () { return 3; } }
+assertEq(f(obj), -4);
+