| // 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. |
| // VMOptions=--optimization-counter-threshold=10 --no-use-osr |
| |
| // @dart = 2.9 |
| |
| import "package:expect/expect.dart"; |
| |
| // Test optimization of redundant array loads. |
| |
| var A = [0, 2, 3]; |
| |
| test1(a) { |
| int x = a[0]; |
| int y = a[1]; |
| ++a[0]; |
| return a[0] + y + a[2]; |
| } |
| |
| int test2(a) { |
| return a[2] + a[2]; |
| } |
| |
| main() { |
| for (int i = 0; i < 20; i++) { |
| test1(A); |
| test2(A); |
| } |
| Expect.equals(26, test1(A)); |
| Expect.equals(6, test2(A)); |
| } |