Robert Nystrom
2034061433
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>
22 lines
789 B
Dart
22 lines
789 B
Dart
// Copyright (c) 2015, 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 location summary for Uint32 multiplication.
|
|
// VMOptions=--optimization-counter-threshold=5 --no-background-compilation
|
|
|
|
import 'package:expect/expect.dart';
|
|
|
|
mintLeftShift(x, y) => x << y;
|
|
mintRightShift(x, y) => x >> y;
|
|
|
|
main() {
|
|
for (var i = 0; i < 20; i++) {
|
|
var x = 1 + (1 << (i + 32));
|
|
Expect.equals(x, mintLeftShift(x, 0));
|
|
Expect.equals(x, mintRightShift(x, 0));
|
|
Expect.equals(2 * x, mintLeftShift(x, 1));
|
|
Expect.equals(x ~/ 2, mintRightShift(x, 1));
|
|
Expect.equals((i >= 16) ? 1 : x, mintRightShift(mintLeftShift(x, i), i));
|
|
}
|
|
}
|