| // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| // Test correctness of side effects tracking used by load to load forwarding. |
| |
| class A { |
| var x, y; |
| A(this.x, this.y); |
| } |
| |
| foo(a) { |
| var value1 = a.x; |
| var value2 = a.y; |
| for (var j = 1; j < 4; j++) { |
| value1 |= a.x << (j * 8); |
| a.y += 1; |
| a.x += 1; |
| value2 |= a.y << (j * 8); |
| } |
| return [value1, value2]; |
| } |
| |
| bar(a, mode) { |
| var value1 = a.x; |
| var value2 = a.y; |
| for (var j = 1; j < 4; j++) { |
| value1 |= a.x << (j * 8); |
| a.y += 1; |
| if (mode) a.x += 1; |
| a.x += 1; |
| value2 |= a.y << (j * 8); |
| } |
| return [value1, value2]; |
| } |
| |
| main() { |
| for (var i = 0; i < 2000; i++) { |
| Expect.listEquals([0x02010000, 0x03020100], foo(new A(0, 0))); |
| Expect.listEquals([0x02010000, 0x03020100], bar(new A(0, 0), false)); |
| Expect.listEquals([0x04020000, 0x03020100], bar(new A(0, 0), true)); |
| } |
| } |