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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 | 4 |
5 import "package:expect/expect.dart"; | |
6 | |
7 // The "if (negative) res2 |= 3" below can be emitted as negative && (res2 |= 3) | 5 // The "if (negative) res2 |= 3" below can be emitted as negative && (res2 |= 3) |
8 // in JavaScript. Dart2js produced the wrong output. | 6 // in JavaScript. Dart2js produced the wrong output. |
9 | 7 |
10 _shiftRight(x, y) => x; | 8 _shiftRight(x, y) => x; |
11 int64_bits(x) => x; | 9 int64_bits(x) => x; |
12 | 10 |
13 class A { | 11 class A { |
14 opshr(int n, a2) { | 12 opshr(int n, a2) { |
15 int res2; | 13 int res2; |
16 bool negative = a2 == 496; | 14 bool negative = a2 == 496; |
17 | 15 |
18 res2 = _shiftRight(a2, n); | 16 res2 = _shiftRight(a2, n); |
19 if (negative) { | 17 if (negative) { |
20 res2 |= 3; | 18 res2 |= 3; |
21 } | 19 } |
22 return int64_bits(res2); | 20 return int64_bits(res2); |
23 } | 21 } |
24 } | 22 } |
25 | 23 |
26 main() { | 24 main() { |
27 var a = new A(); | 25 var a = new A(); |
28 var t; | 26 var t; |
29 for (int i = 0; i < 3; i++) { | 27 for (int i = 0; i < 3; i++) { |
30 t = a.opshr(99, 496); | 28 t = a.opshr(99, 496); |
31 } | 29 } |
32 Expect.equals(499, t); | 30 Expect.equals(499, t); |
33 } | 31 } |
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