Test6814842.java

/*
 * Copyright (c) 2009, 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 6814842
 * @summary Load shortening optimizations
 *
 * @run main/othervm -Xcomp -XX:CompileOnly=Test6814842.loadS2B,Test6814842.loadS2Bmask255,Test6814842.loadUS2B,Test6814842.loadUS2Bmask255,Test6814842.loadI2B,Test6814842.loadI2Bmask255,Test6814842.loadI2S,Test6814842.loadI2Smask255,Test6814842.loadI2Smask65535,Test6814842.loadI2US,Test6814842.loadI2USmask255,Test6814842.loadI2USmask65535 Test6814842
 */

public class Test6814842 {
    static final short[] sa = new short[] { (short) 0xF1F2 };
    static final char[]  ca = new char[]  { (char) 0xF3F4  };
    static final int[]   ia = new int[]   { 0xF1F2F3F4     };

    public static void main(String[] args)
    {
        byte s2b = loadS2B(sa);
        if (s2b != (byte) 0xF2)
            throw new InternalError("loadS2B failed: " + s2b + " != " + (byte) 0xF2);

        byte s2bmask255 = loadS2Bmask255(sa);
        if (s2bmask255 != (byte) 0xF2)
            throw new InternalError("loadS2Bmask255 failed: " + s2bmask255 + " != " + (byte) 0xF2);

        byte us2b = loadUS2B(ca);
        if (us2b != (byte) 0xF4)
            throw new InternalError("loadUS2B failed: " + us2b + " != " + (byte) 0xF4);

        byte us2bmask255 = loadUS2Bmask255(ca);
        if (us2bmask255 != (byte) 0xF4)
            throw new InternalError("loadUS2Bmask255 failed: " + us2bmask255 + " != " + (byte) 0xF4);

        byte i2b = loadI2B(ia);
        if (i2b != (byte) 0xF4)
            throw new InternalError("loadI2B failed: " + i2b + " != " + (byte) 0xF4);

        byte i2bmask255 = loadI2Bmask255(ia);
        if (i2bmask255 != (byte) 0xF4)
            throw new InternalError("loadI2Bmask255 failed: " + i2bmask255 + " != " + (byte) 0xF4);

        short i2s = loadI2S(ia);
        if (i2s != (short) 0xF3F4)
            throw new InternalError("loadI2S failed: " + i2s + " != " + (short) 0xF3F4);

        short i2smask255 = loadI2Smask255(ia);
        if (i2smask255 != (short) 0xF4)
            throw new InternalError("loadI2Smask255 failed: " + i2smask255 + " != " + (short) 0xF4);

        short i2smask65535 = loadI2Smask65535(ia);
        if (i2smask65535 != (short) 0xF3F4)
            throw new InternalError("loadI2Smask65535 failed: " + i2smask65535 + " != " + (short) 0xF3F4);

        char i2us = loadI2US(ia);
        if (i2us != (char) 0xF3F4)
            throw new InternalError("loadI2US failed: " + (int) i2us + " != " + (char) 0xF3F4);

        char i2usmask255 = loadI2USmask255(ia);
        if (i2usmask255 != (char) 0xF4)
            throw new InternalError("loadI2USmask255 failed: " + (int) i2usmask255 + " != " + (char) 0xF4);

        char i2usmask65535 = loadI2USmask65535(ia);
        if (i2usmask65535 != (char) 0xF3F4)
            throw new InternalError("loadI2USmask65535 failed: " + (int) i2usmask65535 + " != " + (char) 0xF3F4);
    }

    static byte  loadS2B          (short[] sa) { return (byte)  (sa[0]         ); }
    static byte  loadS2Bmask255   (short[] sa) { return (byte)  (sa[0] & 0xFF  ); }

    static byte  loadUS2B         (char[]  ca) { return (byte)  (ca[0]         ); }
    static byte  loadUS2Bmask255  (char[]  ca) { return (byte)  (ca[0] & 0xFF  ); }

    static byte  loadI2B          (int[]   ia) { return (byte)  (ia[0]         ); }
    static byte  loadI2Bmask255   (int[]   ia) { return (byte)  (ia[0] & 0xFF  ); }

    static short loadI2S          (int[]   ia) { return (short) (ia[0]         ); }
    static short loadI2Smask255   (int[]   ia) { return (short) (ia[0] & 0xFF  ); }
    static short loadI2Smask65535 (int[]   ia) { return (short) (ia[0] & 0xFFFF); }

    static char  loadI2US         (int[]   ia) { return (char)  (ia[0]         ); }
    static char  loadI2USmask255  (int[]   ia) { return (char)  (ia[0] & 0xFF  ); }
    static char  loadI2USmask65535(int[]   ia) { return (char)  (ia[0] & 0xFFFF); }
}