Upgrade V8 to version 4.9.385.28
https://chromium.googlesource.com/v8/v8/+/4.9.385.28
FPIIM-449
Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/test/mjsunit/regress/regress-undefined-nan.js b/test/mjsunit/regress/regress-undefined-nan.js
new file mode 100644
index 0000000..0e9b3d3
--- /dev/null
+++ b/test/mjsunit/regress/regress-undefined-nan.js
@@ -0,0 +1,35 @@
+// Copyright 2015 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 loader(dst, src, i) {
+ dst[i] = src[i];
+}
+
+var ab = new ArrayBuffer(8);
+var i_view = new Int32Array(ab);
+i_view[0] = %GetHoleNaNUpper()
+i_view[1] = %GetHoleNaNLower();
+var f_view = new Float64Array(ab);
+
+var fixed_double_elements = new Float64Array(1);
+
+function opt_store() { fixed_double_elements[0] = f_view[0]; }
+
+opt_store();
+opt_store();
+%OptimizeFunctionOnNextCall(opt_store);
+opt_store();
+
+var i32 = new Int32Array(fixed_double_elements.buffer);
+assertEquals(i_view[0], i32[0]);
+assertEquals(i_view[1], i32[1]);
+
+var doubles = [0.5];
+loader(doubles, fixed_double_elements, 0);
+loader(doubles, fixed_double_elements, 0);
+%OptimizeFunctionOnNextCall(loader);
+loader(doubles, fixed_double_elements, 0);
+assertTrue(doubles[0] !== undefined);