diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug618577.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug618577.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,5 @@
+var x = new Uint32Array();
+for (var i = 0; i < 100; i++)
+    x[77] = x[77];
+
+// Don't assert.