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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 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 | 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. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 // Test inlining of instance getters. | 4 // Test inlining of instance getters. |
| 5 // Three classes access always the same field. Optimize method foo and inline | 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. | 6 // getter for classes 'A' and 'B'. Call later via 'C' and cause deoptimization. |
| 7 // VMOptions=--optimization-counter-threshold=10 --no-use-osr | 7 // VMOptions=--optimization-counter-threshold=10 --no-use-osr |
| 8 | 8 |
| 9 import "package:expect/expect.dart"; | 9 import "package:expect/expect.dart"; |
| 10 | 10 |
| 11 class A { | 11 class A { |
| 12 int f; | 12 int f; |
| 13 A(this.f) {} | 13 A(this.f) {} |
| 14 int foo() { | 14 int foo() { |
| 15 return f; // <-- inline getter for classes 'A' and 'B'. | 15 return f; // <-- inline getter for classes 'A' and 'B'. |
| 16 } | 16 } |
| 17 } | 17 } |
| 18 | 18 |
| 19 class B extends A { | 19 class B extends A { |
| 20 B() : super(2) {} | 20 B() : super(2) {} |
| 21 } | 21 } |
| 22 | 22 |
| 23 class C extends A { | 23 class C extends A { |
| 24 C() : super(10) {} | 24 C() : super(10) {} |
| 25 } | 25 } |
| 26 | 26 |
| 27 class InlineGetterTest { | 27 class InlineGetterTest { |
| 28 static testMain() { | 28 static testMain() { |
| 29 var a = new A(1); | 29 var a = new A(1); |
| 30 var b = new B(); | 30 var b = new B(); |
| 31 int sum = 0; | 31 int sum = 0; |
| 32 for (int i = 0; i < 20; i++) { | 32 for (int i = 0; i < 20; i++) { |
| 33 sum += a.foo(); | 33 sum += a.foo(); |
| 34 sum += b.foo(); | 34 sum += b.foo(); |
| 35 } | 35 } |
| 36 var c = new C(); | 36 var c = new C(); |
| 37 sum += c.foo(); // <-- Deoptimizing. | 37 sum += c.foo(); // <-- Deoptimizing. |
| 38 Expect.equals(70, sum); | 38 Expect.equals(70, sum); |
| 39 } | 39 } |
| 40 } | 40 } |
| 41 | 41 |
| 42 main() { | 42 main() { |
| 43 InlineGetterTest.testMain(); | 43 InlineGetterTest.testMain(); |
| 44 } | 44 } |
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