diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug821794.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug821794.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,10 @@
+
+gczeal(2);
+function bitsinbyte() {
+    var [ summary  ]  = true;
+}
+function TimeFunc(func) {
+    for(var y=0; y<11000; y++)
+        func();
+}
+TimeFunc(bitsinbyte);