1 files changed, 7 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/cacheir/optimize-get-iterator-6.js b/js/src/jit-test/tests/cacheir/optimize-get-iterator-6.js
new file mode 100644
index 0000000000..059914afc1
--- /dev/null
+++ b/js/src/jit-test/tests/cacheir/optimize-get-iterator-6.js
@@ -0,0 +1,7 @@
+(() => {
+  ({}).__proto__[1] = 2;
+  let [x,y] = [1];
+
+  assertEq(x, 1);
+  assertEq(y, undefined);
+})();