diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug776687.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug776687.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,8 @@
+(function() {
+    for (var a = 0; a < 9; a++) {
+        if (arguments[a]) {
+            while (arguments[a])
+                ;
+        }
+    }
+})()