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1 // Copyright 2014 the V8 project authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Flags: --allow-natives-syntax | 5 // Flags: --allow-natives-syntax |
6 | 6 |
7 var a = {y:1.5}; | 7 function g() { |
8 a.y = 0; | 8 this.x = {}; |
9 var b = a.y; | 9 } |
10 a.y = {}; | 10 |
11 var d = 1; | |
12 function f() { | 11 function f() { |
13 d = 0; | 12 new g(); |
14 return {y: b}; | |
15 } | 13 } |
| 14 |
| 15 function deopt(x) { |
| 16 %DeoptimizeFunction(f); |
| 17 } |
| 18 |
16 f(); | 19 f(); |
17 f(); | 20 f(); |
18 %OptimizeFunctionOnNextCall(f); | 21 %OptimizeFunctionOnNextCall(f); |
| 22 Object.prototype.__defineSetter__('x', deopt); |
19 f(); | 23 f(); |
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