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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 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 | 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 program for correct optimizations related to types fo allocated lists. | 4 // Test program for correct optimizations related to types fo allocated lists. |
5 // VMOptions=--optimization-counter-threshold=10 | 5 // VMOptions=--optimization-counter-threshold=10 |
6 | 6 |
7 import "package:expect/expect.dart"; | 7 import "package:expect/expect.dart"; |
8 | 8 |
9 main() { | 9 main() { |
10 // Trigger optimization of 'test' method. | 10 // Trigger optimization of 'test' method. |
11 for (int i = 0; i < 20; i++) { | 11 for (int i = 0; i < 20; i++) { |
12 test(2); | 12 test(2); |
13 } | 13 } |
14 } | 14 } |
15 | 15 |
16 | |
17 test(n) { | 16 test(n) { |
18 var a = new List(); // Growable list. | 17 var a = new List(); // Growable list. |
19 var b = new List(10); // Fixed size list. | 18 var b = new List(10); // Fixed size list. |
20 var c = const [1, 2, 3, 4]; // Constant aray. | 19 var c = const [1, 2, 3, 4]; // Constant aray. |
21 // In optimized mode the class checks will be eliminated since the | 20 // In optimized mode the class checks will be eliminated since the |
22 // constructors above provide information about exact types. | 21 // constructors above provide information about exact types. |
23 a.add(4); | 22 a.add(4); |
24 b[0] = 5; | 23 b[0] = 5; |
25 Expect.equals(4, a[0]); | 24 Expect.equals(4, a[0]); |
26 Expect.equals(5, b[0]); | 25 Expect.equals(5, b[0]); |
27 // Test bound check elimination. | 26 // Test bound check elimination. |
28 Expect.equals(2, c[1]); | 27 Expect.equals(2, c[1]); |
29 // Test elimination of array length computation. | 28 // Test elimination of array length computation. |
30 var v = c[n]; | 29 var v = c[n]; |
31 Expect.equals(v, c[n]); | 30 Expect.equals(v, c[n]); |
32 } | 31 } |
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