diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testNot.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testNot.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,8 @@
+function testNot() {
+    var a = new Object(), b = null, c = "foo", d = "", e = 5, f = 0, g = 5.5, h = -0, i = true, j = false, k = undefined;
+    var r;
+    for (var i = 0; i < 10; ++i)
+        r = [!a, !b, !c, !d, !e, !f, !g, !h, !i, !j, !k];
+    return r.join(",");
+}
+assertEq(testNot(), "false,true,false,true,false,true,false,true,false,true,true");