hotspot/test/compiler/6863155/Test6863155.java
author twisti
Tue, 28 Jul 2009 09:02:30 +0200
changeset 3597 572bbef24585
child 5547 f4b087cbb361
permissions -rw-r--r--
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
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/*
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 * Copyright 2009 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 */
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/**
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 * @test
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 * @bug 6863155
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 * @summary Server compiler generates incorrect code (x86, long, bitshift, bitmask)
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 *
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 * @run main/othervm -Xcomp -XX:CompileOnly=Test6863155.test Test6863155
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 */
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public class Test6863155 {
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    private static long test(byte b) {
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        return b << 24 & 0xff000000L;
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    }
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    public static void main(String... args) {
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        long result = test((byte) 0xc2);
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        long expected = 0x00000000c2000000L;
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        if (result != expected)
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            throw new InternalError(Long.toHexString(result) + " != " + Long.toHexString(expected));
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    }
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}