diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug719346.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug719346.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,15 @@
+// Try to GC some ion code that involves an IC on x64.
+
+var o = {
+	bar: function () { return 1; }
+}
+
+function f(o) {
+	for (var i = 0; i < 100; i++)
+	 o.bar();
+}
+
+f(o);
+
+// Don't segfault.
+gc();