1 files changed, 13 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/cacheir/optimize-get-iterator-1.js b/js/src/jit-test/tests/cacheir/optimize-get-iterator-1.js
new file mode 100644
index 0000000000..f22d5fab63
--- /dev/null
+++ b/js/src/jit-test/tests/cacheir/optimize-get-iterator-1.js
@@ -0,0 +1,13 @@
+(() => {
+  let returnCalled = false;
+  ({}).__proto__.return = () => {
+    returnCalled = true;
+    return { value: 3, done: true };
+  };
+
+  assertEq(returnCalled, false);
+  let [a,b] = [1,2,3];
+  assertEq(returnCalled, true);
+  assertEq(a, 1);
+  assertEq(b, 2);
+})();