| // Copyright 2014 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 t1() { return this instanceof t1; } |
| function t2() { return this instanceof t2; } |
| |
| var o1 = new (function() { })(); |
| Object.defineProperty(o1, "t", {get:function() { return this instanceof o1.constructor; }}); |
| var o2 = new (function() { })(); |
| Object.defineProperty(o2, "t", {get:function() { return this instanceof o1.constructor; }}); |
| var o3 = new (function() { })(); |
| o3.t = true; |
| |
| function f(o) { |
| return 1 + (o.t ? 1 : 2); |
| } |
| |
| f(o1); |
| f(o1); |
| f(o2); |
| %OptimizeFunctionOnNextCall(f); |
| f(o3); |