hotspot/test/compiler/6863155/Test6863155.java
author kvn
Wed, 25 May 2011 21:17:07 -0700
changeset 9961 5d84243241ac
parent 5547 f4b087cbb361
permissions -rw-r--r--
7048332: Cadd_cmpLTMask doesn't handle 64-bit tmp register properly Summary: Use ins_encode %{ %} form to encode cadd_cmpLTMask() instruction and remove unused code. Reviewed-by: never
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/*
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 * Copyright (c) 2009, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * 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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}