diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug1001222.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug1001222.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,5 @@
+function f(x, y) {
+  return +(x ? x : y), y >>> 0
+}
+f(0, -0)
+f(0, 2147483649)