dart-sdk/tests/language/vm/uint32_shift_test.dart
Robert Nystrom 2034061433 Migrate language_2/vm to NNBD.
Change-Id: I313a57ed7c7ea2ada75065f55a7367376f6bdae5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152183
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Srujan Gaddam <srujzs@google.com>
2020-06-25 20:39:23 +00:00

30 lines
664 B
Dart

// Copyright (c) 2014, 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-background_compilation
import 'package:expect/expect.dart';
class Good {
use(x) {
return x & 0x1;
}
}
class Bad {
use(x) {
return x & 0x100000000;
}
}
f(o, x) => o.use(x << 1);
main() {
final good = new Good();
final bad = new Bad();
for (var i = 0; i < 20000; i++) {
Expect.equals(0, f(good, 0x80000000));
}
Expect.equals(0x100000000, f(bad, 0x80000000));
}