1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/gc/bug-1188290.js b/js/src/jit-test/tests/gc/bug-1188290.js
new file mode 100644
index 000000000..446ddbadc
--- /dev/null
+++ b/js/src/jit-test/tests/gc/bug-1188290.js
@@ -0,0 +1,21 @@
+load(libdir + "immutable-prototype.js");
+
+if (globalPrototypeChainIsMutable())
+    this.__proto__ = [];
+
+if (!this.hasOwnProperty("TypedObject") || typeof minorgc !== 'function')
+    quit();
+
+var T = TypedObject;
+var ObjectStruct = new T.StructType({f: T.Object});
+var o = new ObjectStruct();
+
+minorgc();
+
+function writeObject(o, v) {
+    o.f = v;
+    assertEq(typeof o.f, "object");
+}
+
+for (var i = 0; i < 5; i++)
+    writeObject(o, { toString: function() { return "helo"; } });