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| 1 // Copyright (c) 2012, 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 deoptimziation caused by lazy finalization. |
| 5 // VMOptions=--optimization-counter-threshold=10 --no-use-osr |
| 6 |
| 7 import "package:expect/expect.dart"; |
| 8 |
| 9 main() { |
| 10 Expect.equals(20000, part1()); |
| 11 // Trigger lazy finalization of class B, which should invalidate |
| 12 // optimized code for A.loop. |
| 13 Expect.equals(-20000, part2()); |
| 14 } |
| 15 |
| 16 part1() { |
| 17 var a = new A(); |
| 18 a.loop(); |
| 19 // Second invocation calls optimized code. |
| 20 return a.loop(); |
| 21 } |
| 22 |
| 23 part2() { |
| 24 var b = new B(); |
| 25 b.loop(); |
| 26 // Second invocation calls optimized code. |
| 27 return b.loop(); |
| 28 } |
| 29 |
| 30 class A { |
| 31 foo() => 2; |
| 32 |
| 33 loop() { |
| 34 var sum = 0; |
| 35 for (int i = 0; i < 10000; i++) { |
| 36 sum += foo(); |
| 37 } |
| 38 return sum; |
| 39 } |
| 40 } |
| 41 |
| 42 class Aa extends A { |
| 43 |
| 44 } |
| 45 |
| 46 class B extends Aa { |
| 47 foo() => -2; |
| 48 } |
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