1 files changed, 11 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/regress/regress-crbug-878845.js b/deps/v8/test/mjsunit/regress/regress-crbug-878845.js
new file mode 100644
index 0000000000..2913f9e849
--- /dev/null
+++ b/deps/v8/test/mjsunit/regress/regress-crbug-878845.js
@@ -0,0 +1,11 @@
+// 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.
+
+let arr = [, 0.1];
+
+Array.prototype.lastIndexOf.call(arr, 100, {
+  valueOf() {
+    arr.length = 0;
+  }
+});