1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug1228327.js b/js/src/jit-test/tests/ion/bug1228327.js
new file mode 100644
index 000000000..af9cda58a
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug1228327.js
@@ -0,0 +1,14 @@
+for (var i=0; i<2; i++) {
+    var o = {};
+    Object.setPrototypeOf(o, null);
+    o = Object.create(o);
+    var p = {};
+    Object.setPrototypeOf(p, o);
+}
+function f() {
+    for (var i=1; i<20; i++)
+        p[i] = i;
+    for (var i=0; i<1500; i++)
+        assertEq(p[0], undefined);
+}
+f();