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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 inlining of instance getters. | |
| 5 // Three classes access always the same field. Optimize method foo and inline | |
| 6 // getter for classes 'A' and 'B'. Call later via 'C' and cause deoptimization. | |
| 7 | |
| 8 class A { | |
| 9 int f; | |
| 10 A(this.f) {} | |
| 11 int foo() { | |
| 12 return f; // <-- inline getter for classes 'A' and 'B'. | |
| 13 } | |
| 14 } | |
| 15 | |
| 16 class B extends A { | |
| 17 B() : super(2) {} | |
| 18 } | |
| 19 | |
| 20 class C extends A { | |
| 21 C() : super(10) {} | |
| 22 } | |
| 23 | |
| 24 class InlineGetterTest { | |
| 25 static testMain() { | |
| 26 var a = new A(1); | |
| 27 var b = new B(); | |
| 28 int sum = 0; | |
| 29 for (int i = 0; i < 5000; i++) { | |
| 30 sum += a.foo(); | |
| 31 sum += b.foo(); | |
| 32 } | |
| 33 var c = new C(); | |
| 34 sum += c.foo(); // <-- Deoptimizing. | |
| 35 Expect.equals(15010, sum); | |
| 36 } | |
| 37 } | |
| 38 | |
| 39 main() { | |
| 40 InlineGetterTest.testMain(); | |
| 41 } | |
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