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| 1 // Copyright 2017 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 foo(s) { | |
| 8 s = s + '0123456789012'; | |
| 9 return s.indexOf('0'); | |
| 10 } | |
| 11 | |
| 12 assertEquals(0, foo('0')); | |
| 13 assertEquals(0, foo('0')); | |
| 14 %OptimizeFunctionOnNextCall(foo); | |
| 15 assertEquals(0, foo('0')); | |
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