johnmccutchan@google.com
2ebd74a740
- Add new representation: kUnboxedUint32. - Add BinaryUint32Op, UnaryUint32Op, ShiftUint32Op instructions. - Add new optimization pass which replaces Mint instructions with Uint32 instructions when possible. - IA32 completed. - ARM completed. R=fschneider@google.com, vegorov@google.com, zra@google.com Review URL: https://codereview.chromium.org//345563007 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@38198 260f80e4-7a28-3924-810f-c04153c831b5
27 lines
625 B
Dart
27 lines
625 B
Dart
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// VMOptions=--optimization_counter_threshold=10
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import 'package:expect/expect.dart';
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class Good {
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use(x) { return x & 0x1; }
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}
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class Bad {
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use(x) { return x & 0x100000000; }
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}
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f(o, x) => o.use(x << 1);
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main() {
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final good = new Good();
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final bad = new Bad();
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for (var i = 0; i < 20000; i++) {
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Expect.equals(0, f(good, 0x80000000));
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}
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Expect.equals(0x100000000, f(bad, 0x80000000));
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}
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