diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug749620.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug749620.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,16 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+var v = [0, 0x7fffffff];
+v.sort();
+
+assertEq(v[0], 0);
+assertEq(v[1], 0x7fffffff);
+
+v = [0x7fffffff, 0];
+v.sort();
+
+assertEq(v[0], 0);
+assertEq(v[1], 0x7fffffff);