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| 1 // Copyright (c) 2011, 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 caused by running code that did not collect type |
| 5 // feedback before. |
| 6 |
| 7 testStoreIndexed() { |
| 8 test(a, i, v, flag) { |
| 9 if (flag) { |
| 10 // No type feedback in first pass |
| 11 return a[i] = v; |
| 12 } else { |
| 13 return a[i] = i; |
| 14 } |
| 15 } |
| 16 |
| 17 var a = new List(10); |
| 18 for (var i = 0; i < 2000; i++) { |
| 19 var r = test(a, 3, 888, false); |
| 20 Expect.equals(3, r); |
| 21 Expect.equals(3, a[3]); |
| 22 } |
| 23 // Deopt. |
| 24 var r = test(a, 3, 888, true); |
| 25 Expect.equals(888, r); |
| 26 Expect.equals(888, a[3]); |
| 27 } |
| 28 |
| 29 testIncrLocal() { |
| 30 test(a, flag) { |
| 31 if (flag) { |
| 32 a++; |
| 33 return a; |
| 34 } else { |
| 35 return -1; |
| 36 } |
| 37 } |
| 38 |
| 39 for (var i = 0; i < 2000; i++) { |
| 40 var r = test(10, false); |
| 41 Expect.equals(-1, r); |
| 42 } |
| 43 // Deopt. |
| 44 var r = test(10, true); |
| 45 Expect.equals(11, r); |
| 46 } |
| 47 |
| 48 |
| 49 main() { |
| 50 for (var i = 0; i < 2000; i++) {} |
| 51 testStoreIndexed(); |
| 52 testIncrLocal(); |
| 53 } |
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