| Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 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 p(x) { |
| 8 | this.x = x; |
| 9 | } |
| 10 | |
| 11 | function f() { |
| 12 | var a = new p(1), b = new p(2); |
| 13 | for (var i = 0; i < 1; i++) { |
| 14 | a.x += b.x; |
| 15 | } |
| 16 | return a.x; |
| 17 | } |
| 18 | |
| 19 | new p(0.1); // make 'x' mutable box double field in p. |
| 20 | |
| 21 | assertEquals(3, f()); |
| 22 | assertEquals(3, f()); |
| 23 | %OptimizeFunctionOnNextCall(f); |
| 24 | assertEquals(3, f()); |