| // 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 |
| |
| var big = 1e10; |
| var backup = new Float64Array(1); |
| |
| function mult0(val) { |
| var prod = val * big; |
| backup[0] = prod; |
| var rounded = Math.round(prod); |
| assertEquals(prod, backup[0]); |
| return rounded; |
| }; |
| %PrepareFunctionForOptimization(mult0); |
| var count = 5; |
| for (var i = 0; i < count; i++) { |
| if (i == count - 1) %OptimizeFunctionOnNextCall(mult0); |
| var result = mult0(-1); |
| assertEquals(result, -big); |
| } |
