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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 | |
5 // Check correct deoptimization of instance field increment. | |
6 | |
7 | |
8 main() { | |
9 var a = new A(); | |
10 var aa = new A(); | |
11 for (int i = 0; i < 2000; i++) { | |
12 a.Incr(); | |
13 myIncr(aa); | |
14 conditionalIncr(false, a); | |
15 } | |
16 Expect.equals(2000, a.f); | |
17 Expect.equals(2000, aa.f); | |
18 a.f = 1.0; | |
19 // Deoptimize ++ part of instance increment. | |
20 a.Incr(); | |
21 Expect.equals(2.0, a.f); | |
22 var b = new B(); | |
23 // Deoptimize getfield part of instance increment. | |
24 myIncr(b); | |
25 Expect.equals(1.0, b.f); | |
26 // Deoptimize since no type feedback was collected. | |
27 var old = a.f; | |
28 conditionalIncr(true, a); | |
29 Expect.equals(old + 1, a.f); | |
30 } | |
31 | |
32 myIncr(var a) { | |
33 a.f++; | |
34 } | |
35 | |
36 conditionalIncr(var f, var a) { | |
37 if (f) { | |
38 a.f++; | |
39 } | |
40 } | |
41 | |
42 class A { | |
43 A() : f = 0; | |
44 Incr() { | |
45 f++; | |
46 } | |
47 var f; | |
48 } | |
49 | |
50 class B { | |
51 B() : f = 0; | |
52 var f; | |
53 } | |
54 | |
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