diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug893732.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug893732.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+
+var arr = new Int8Array(100);
+function f(a) {
+  for(var i=0; i<30; i++) {
+    x = a[85.3];
+  }
+}
+f(arr);
+
+var buf = serialize(new Date(NaN));
+var n =  -(8.64e15 + 1);
+var nbuf = serialize(n);
+for (var j = 0; j < 8; j++)
+  buf[j + (0.00000000123)] = nbuf[j];