/*

 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/**

 * @test

 * @bug 8000805

 * @summary JMM issue: short loads are non-atomic

 *

 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -Xcomp

 *      -XX:+PrintCompilation

 *      -XX:CompileCommand=compileonly,compiler.c2.Test8000805::load*

 *      compiler.c2.Test8000805

 */

package compiler.c2;

public class Test8000805 {

    static long  loadS2LmaskFF (short[] sa) { return sa[0] & 0xFF; }

    static long _loadS2LmaskFF (short[] sa) { return sa[0] & 0xFF; }

    static long  loadS2Lmask16 (short[] sa) { return sa[0] & 0xFFFE; }

    static long _loadS2Lmask16 (short[] sa) { return sa[0] & 0xFFFE; }

    static long  loadS2Lmask13 (short[] sa) { return sa[0] & 0x0FFF; }

    static long _loadS2Lmask13 (short[] sa) { return sa[0] & 0x0FFF; }

    static int  loadUS_signExt (char[] ca) { return (ca[0] << 16) >> 16; }

    static int _loadUS_signExt (char[] ca) { return (ca[0] << 16) >> 16; }

    static long  loadB2L_mask8 (byte[] ba) { return ba[0] & 0x55; }

    static long _loadB2L_mask8 (byte[] ba) { return ba[0] & 0x55; }

    public static void main(String[] args) {

        for (int i = Byte.MIN_VALUE; i < Byte.MAX_VALUE; i++) {

            byte[] ba = new byte[]  { (byte) i};

            { long v1 =  loadB2L_mask8(ba);

              long v2 = _loadB2L_mask8(ba);

              if (v1 != v2)

              throw new InternalError(String.format("loadB2L_mask8 failed: %x != %x", v1, v2)); }

        }

        for (int i = Short.MIN_VALUE; i < Short.MAX_VALUE; i++) {

            short[] sa = new short[] { (short)i };

            char[] ca = new char[] { (char)i };

            { long v1 =  loadS2LmaskFF(sa);

              long v2 = _loadS2LmaskFF(sa);

              if (v1 != v2)

              throw new InternalError(String.format("loadS2LmaskFF failed: %x != %x", v1, v2)); }

            { long v1 =  loadS2Lmask16(sa);

              long v2 = _loadS2Lmask16(sa);

              if (v1 != v2)

              throw new InternalError(String.format("loadS2Lmask16 failed: %x != %x", v1, v2)); }

            { long v1 =  loadS2Lmask13(sa);

              long v2 = _loadS2Lmask13(sa);

              if (v1 != v2)

              throw new InternalError(String.format("loadS2Lmask13 failed: %x != %x", v1, v2)); }

            { int v1 =  loadUS_signExt(ca);

              int v2 = _loadUS_signExt(ca);

              if (v1 != v2)

                throw new InternalError(String.format("loadUS_signExt failed: %x != %x", v1, v2)); }

        }

        System.out.println("TEST PASSED.");

    }

}