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diff --git a/src/3rdparty/v8/test/mjsunit/regress/regress-137768.js b/src/3rdparty/v8/test/mjsunit/regress/regress-137768.js
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+++ b/src/3rdparty/v8/test/mjsunit/regress/regress-137768.js
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+// Copyright 2012 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --allow-natives-syntax
+
+// Create elements in a constructor function to ensure map sharing.
+function TestConstructor() {
+  this[0] = 1;
+  this[1] = 2;
+  this[2] = 3;
+}
+
+function bad_func(o,a) {
+  var s = 0;
+  for (var i = 0; i < 1; ++i) {
+    o.newFileToChangeMap = undefined;
+    var x = a[0];
+    s += x;
+  }
+  return s;
+}
+
+o = new Object();
+a = new TestConstructor();
+bad_func(o, a);
+
+// Make sure that we're out of pre-monomorphic state for the member add of
+// 'newFileToChangeMap' which causes a map transition.
+o = new Object();
+a = new TestConstructor();
+bad_func(o, a);
+
+// Optimize, before the fix, the element load and subsequent tagged-to-i were
+// hoisted above the map check, which can't be hoisted due to the map-changing
+// store.
+o = new Object();
+a = new TestConstructor();
+%OptimizeFunctionOnNextCall(bad_func);
+bad_func(o, a);
+
+// Pass in a array of doubles. Before the fix, the optimized load and
+// tagged-to-i will treat part of a double value as a pointer and de-ref it
+// before the map check was executed that should have deopt.
+o = new Object();
+// Pass in an elements buffer where the bit representation of the double numbers
+// are two adjacent small 32-bit values with the lowest bit set to one, causing
+// tagged-to-i to SIGSEGV.
+a = [2.122e-314, 2.122e-314, 2.122e-314];
+bad_func(o, a);