diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/900683.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/900683.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,37 @@
+if (typeof ParallelArray === "undefined")
+  quit();
+
+ParallelArray(11701, function() {
+    return /x/
+}).reduce(function(a) {
+    if (a % 9) {
+        for (var y = 0; y; ++y) {}
+        return []
+    }
+})
+
+function foo() {
+  return "foo";
+}
+
+function test() {
+var a = [1, 2, 3];
+var s = '';
+for (var x of a)
+  for (var i of 'y')
+    s += '' + foo()
+} test();
+
+ignoreComments = [];
+
+function bug909276() {
+var actual = '';
+for (var next of ignoreComments) {
+  actual += a;
+  for (var b in x) {
+    actual += b.eval("args = [-0, NaN, -1/0]; this.f(-0, NaN, -1/0);");
+  }
+}
+var y = Iterator([1,2,3], true);
+for (var c in y) {}
+} bug909276();