diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/loops/property-1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/loops/property-1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,19 @@
+
+function foo(x, y) {
+  var res = 0;
+  for (var i = 0; i < 10; i++) {
+    res += x.f + y[i];
+  }
+  return res;
+}
+
+var x = {f:0};
+var y = Array(10);
+for (var i = 0; i < 10; i++) {
+  if (i == 5)
+    Object.defineProperty(Object.prototype, 5, {get: function() { x.f = 10; return 5}});
+  else
+    y[i] = i;
+}
+
+assertEq(foo(x, y), 85);