vegorov@google.com
aa2e7c9f72
Any field store can interfere only with stores to the same offset. Indexed store can only interfere with indexed load. This tracking is not yet used by LICM. R=fschneider@google.com BUG= Review URL: https://codereview.chromium.org//11280232 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15518 260f80e4-7a28-3924-810f-c04153c831b5
42 lines
1.0 KiB
Dart
42 lines
1.0 KiB
Dart
// Copyright (c) 2012, 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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// Test correctness of side effects tracking used by load to load forwarding.
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class A {
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var x, y;
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A(this.x, this.y);
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}
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foo(a) {
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var value1 = a.x;
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var value2 = a.y;
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for (var j = 1; j < 4; j++) {
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value1 |= a.x << (j * 8);
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a.y += 1;
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a.x += 1;
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value2 |= a.y << (j * 8);
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}
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return [value1, value2];
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}
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bar(a, mode) {
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var value1 = a.x;
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var value2 = a.y;
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for (var j = 1; j < 4; j++) {
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value1 |= a.x << (j * 8);
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a.y += 1;
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if (mode) a.x += 1;
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a.x += 1;
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value2 |= a.y << (j * 8);
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}
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return [value1, value2];
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}
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main() {
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for (var i = 0; i < 2000; i++) {
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Expect.listEquals([0x02010000, 0x03020100], foo(new A(0, 0)));
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Expect.listEquals([0x02010000, 0x03020100], bar(new A(0, 0), false));
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Expect.listEquals([0x04020000, 0x03020100], bar(new A(0, 0), true));
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}
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} |