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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 // Test deoptimization on an optimistically hoisted smi check. | |
| 5 // VMOptions=--optimization-counter-threshold=10 | |
| 6 | |
| 7 import 'package:expect/expect.dart'; | |
| 8 | |
| 9 sum(a, b) { | |
| 10 var sum = 0; | |
| 11 for (var j = 1; j < 10; j++) { | |
| 12 for (var i = a; i < b; i++) { | |
| 13 sum++; | |
| 14 } | |
| 15 } | |
| 16 return sum; | |
| 17 } | |
| 18 | |
| 19 mask(x) { | |
| 20 for (var i = 0; i < 10; i++) { | |
| 21 if (i == 1) { | |
| 22 return x; | |
| 23 } | |
| 24 x = x & 0xFF; | |
| 25 } | |
| 26 } | |
| 27 | |
| 28 main() { | |
| 29 for (var i = 0; i < 20; i++) { | |
| 30 Expect.equals(9, sum(1, 2)); | |
| 31 Expect.equals(0xAB, mask(0xAB)); | |
| 32 } | |
| 33 Expect.equals(9, sum(1.0, 2.0)); // Passing double causes deoptimization. | |
| 34 Expect.equals(0xAB, mask(0x1000000AB)); | |
| 35 } | |
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