1 files changed, 23 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/regress/regress-v8-8070.js b/deps/v8/test/mjsunit/regress/regress-v8-8070.js
new file mode 100644
index 0000000000..a75230da1f
--- /dev/null
+++ b/deps/v8/test/mjsunit/regress/regress-v8-8070.js
@@ -0,0 +1,23 @@
+// Copyright 2018 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax
+
+function bar(iterator) {
+  for (const entry of iterator) {}
+}
+
+%NeverOptimizeFunction(bar);
+
+function foo(a) {
+  const iterator = a.values();
+  bar(iterator);
+  return iterator.next().done;
+}
+
+const a = [1, 2, 3];
+assertTrue(foo(a));
+assertTrue(foo(a));
+%OptimizeFunctionOnNextCall(foo);
+assertTrue(foo(a));