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diff --git a/deps/v8/test/mjsunit/compiler/deopt-array-prototype-includes.js b/deps/v8/test/mjsunit/compiler/deopt-array-prototype-includes.js
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index 00000000000..77aedfe1e62
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+++ b/deps/v8/test/mjsunit/compiler/deopt-array-prototype-includes.js
@@ -0,0 +1,103 @@
+// 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 --opt
+
+/* Test deopt behaviors when the prototype has elements */
+
+// includes
+
+(function() {
+  const iarr = [0,1,2];
+  const darr = [0.0, 2.0, 3.3];
+
+  function includes(arr, val) {
+    return arr.includes(val);
+  }
+
+  assertTrue(includes(iarr, 0)); assertTrue(includes(darr, 0));
+  assertTrue(includes(iarr, 2)); assertTrue(includes(darr, 2));
+
+  // JSCallReducer for includes not reduce because it only works with single map
+  %OptimizeFunctionOnNextCall(includes);
+
+  assertTrue(includes(iarr, 0));
+  assertTrue(includes(darr, 0));
+})();
+
+(function() {
+  const iarr = [0,1,2];
+
+  function includes(arr, val) {
+    return arr.includes(val);
+  }
+
+  assertTrue(includes(iarr, 0));
+  assertTrue(includes(iarr, 2));
+
+  %OptimizeFunctionOnNextCall(includes);
+
+  assertTrue(includes(iarr, 0));
+
+  const darr = [0.0, 2.0, 3.3];
+  // deopt because of map change
+  assertTrue(includes(darr, 0));
+})();
+
+(function() {
+  const iarr = [,3];
+
+  function includes(arr, val) {
+    return arr.includes(val);
+  }
+
+  iarr.__proto__ = [2];
+
+  // get feedback
+  assertFalse(includes(iarr, 0));
+  assertTrue(includes(iarr, 2));
+
+  %OptimizeFunctionOnNextCall(includes);
+
+  assertFalse(includes(iarr, 0));
+
+  assertTrue(includes(iarr, 2));
+})();
+
+(function() {
+  const iarr = [,3];
+
+  function includes(arr, val) {
+    return arr.includes(val);
+  }
+
+  assertFalse(includes(iarr, 2));
+  assertTrue(includes(iarr, 3));
+
+  %OptimizeFunctionOnNextCall(includes);
+  assertFalse(includes(iarr, 2));
+
+  // deopt because of map change
+  iarr.__proto__ = [2];
+  assertTrue(includes(iarr, 2));
+})();
+
+// This pollutes the Array prototype, so we should not run more tests
+// in the same environment after this.
+(function () {
+  var array = [,];
+
+  function includes(val) {
+    return array.includes(val);
+  }
+
+  includes(6); includes(6);
+
+  %OptimizeFunctionOnNextCall(includes);
+  assertFalse(includes(6));
+
+  array.__proto__.push(6);
+  // deopt because of no_elements_protector
+  assertTrue(includes(6));
+})();