diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug716895.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug716895.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+// Don't segfault. Reduced from V8 deltablue.
+
+function output(c, dir) {
+  return (dir) ? c.v1 : c.v1;
+}
+
+var constraint = {
+  v1 : {}
+}
+
+for (i=0; i<100; i++){
+  output(constraint, 0)
+  output(constraint, 1);
+}