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annotate test/compiler/6863155/Test6863155.java @ 897:52898b0c43e9

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6863155: Server compiler generates incorrect code (x86, long, bitshift, bitmask) Summary: Code compiled with server compiler generates an incorrect result. Reviewed-by: cfang, never, kvn
author twisti
date Tue, 28 Jul 2009 09:02:30 +0200
parents
children c18cbe5936b8
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1 /*
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2 * Copyright 2009 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
52898b0c43e9 6863155: Server compiler generates incorrect code (x86, long, bitshift, bitmask)
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 */
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23
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24 /**
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25 * @test
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26 * @bug 6863155
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27 * @summary Server compiler generates incorrect code (x86, long, bitshift, bitmask)
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28 *
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29 * @run main/othervm -Xcomp -XX:CompileOnly=Test6863155.test Test6863155
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30 */
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31
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32 public class Test6863155 {
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33 private static long test(byte b) {
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34 return b << 24 & 0xff000000L;
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35 }
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36
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37 public static void main(String... args) {
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38 long result = test((byte) 0xc2);
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39 long expected = 0x00000000c2000000L;
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40 if (result != expected)
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41 throw new InternalError(Long.toHexString(result) + " != " + Long.toHexString(expected));
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42 }
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43 }