OLD | NEW |
1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, 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 | 4 |
5 // Test that a loop invariant code motion optimization correctly hoists | 5 // Test that a loop invariant code motion optimization correctly hoists |
6 // instructions that may cause deoptimization. | 6 // instructions that may cause deoptimization. |
7 | 7 |
8 import "package:expect/expect.dart"; | 8 import "package:expect/expect.dart"; |
9 | 9 |
10 foo(o) { | 10 foo(o) { |
11 var r = 0; | 11 var r = 0; |
12 for (var i = 0; i < 3; i++) { | 12 for (var i = 0; i < 3; i++) { |
13 r += o.z; | 13 r += o.z; |
14 } | 14 } |
15 return r; | 15 return r; |
16 } | 16 } |
17 | 17 |
18 | |
19 class A { | 18 class A { |
20 var z = 3; | 19 var z = 3; |
21 } | 20 } |
22 | 21 |
23 main() { | 22 main() { |
24 var a = new A(); | 23 var a = new A(); |
25 for(var i = 0; i < 10000; i++) foo(a); | 24 for (var i = 0; i < 10000; i++) foo(a); |
26 Expect.equals(9, foo(a)); | 25 Expect.equals(9, foo(a)); |
27 Expect.throws(() => foo(42)); | 26 Expect.throws(() => foo(42)); |
28 for(var i = 0; i < 10000; i++) foo(a); | 27 for (var i = 0; i < 10000; i++) foo(a); |
29 Expect.throws(() => foo(42)); | 28 Expect.throws(() => foo(42)); |
30 } | 29 } |
31 | |
OLD | NEW |