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>
20 lines
573 B
Dart
20 lines
573 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 --no-background-compilation
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import "package:expect/expect.dart";
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// Test truncating left-shift that can deoptimize.
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// Regression test for issue 19330.
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test_shl(w, x) {
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x += 1;
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return w << x & 0xff;
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}
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main() {
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for (var i = 0; i < 20; i++) test_shl(i, i % 10);
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Expect.equals(4, test_shl(1, 1));
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}
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