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35da19ac07
Change-Id: I0e97add738bc79314a210cf137525b7391467fc2 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152595 Reviewed-by: Siva Annamalai <asiva@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
34 lines
788 B
Dart
34 lines
788 B
Dart
// Copyright (c) 2016, 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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//
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// Test that canonicalization inserts constants with correct representation.
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// VMOptions=--optimization-counter-threshold=10 --optimization-filter=bar --no-background-compilation
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import 'dart:typed_data';
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toSigned(v, width) {
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var signMask = 1 << (width - 1);
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return (v & (signMask - 1)) - (v & signMask);
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}
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foo(value) {
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return value >> 32;
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}
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bar(td) {
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return toSigned(foo(td[0]), 64);
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}
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main() {
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toSigned(1 << 1, 32);
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toSigned(1 << 32, 32);
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var l = new Int64List(1);
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l[0] = 0x78f7f6f5f4f3f2f1;
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for (var i = 0; i < 20; i++) {
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bar(l);
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}
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}
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