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| 1 // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 // Flags: --allow-natives-syntax |
| 6 |
| 7 function t1() { return this instanceof t1; } |
| 8 function t2() { return this instanceof t2; } |
| 9 |
| 10 var o1 = new (function() { })(); |
| 11 Object.defineProperty(o1, "t", {get:function() { return this instanceof o1.const
ructor; }}); |
| 12 var o2 = new (function() { })(); |
| 13 Object.defineProperty(o2, "t", {get:function() { return this instanceof o1.const
ructor; }}); |
| 14 var o3 = new (function() { })(); |
| 15 o3.t = true; |
| 16 |
| 17 function f(o) { |
| 18 return 1 + (o.t ? 1 : 2); |
| 19 } |
| 20 |
| 21 f(o1); |
| 22 f(o1); |
| 23 f(o2); |
| 24 %OptimizeFunctionOnNextCall(f); |
| 25 f(o3); |
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