1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug1314545.js b/js/src/jit-test/tests/ion/bug1314545.js
new file mode 100644
index 0000000000..f833a8ae73
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug1314545.js
@@ -0,0 +1,31 @@
+function f() {
+    Object.prototype[0] = 10;
+
+    var arr = [];
+    for (var i=3; i<20; i++) {
+        arr[0] = i;
+        Object.freeze(arr);
+        while (!inIon()) {}
+    }
+    assertEq(arr[0], 3);
+}
+f();
+
+function g() {
+    var c = 0;
+    Object.defineProperty(Object.prototype, 18, {set: function() { c++; }});
+
+    var arrays = [];
+    for (var i=0; i<2; i++)
+        arrays.push([1, 2]);
+
+    for (var i=0; i<20; i++) {
+        arrays[0][i] = 1;
+        arrays[1][i] = 2;
+        if (i === 0)
+            Object.freeze(arrays[0]);
+        while (!inIon()) {}
+    }
+    assertEq(c, 2);
+}
+g();