diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug677080.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug677080.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,8 @@
+function f0(p0) {
+    var v0;
+    if (v0)
+        v0 = (p0 & p0);
+    while (v0 & v0)
+        break;
+}
+print(f0(0));