jdk-24/test/hotspot/jtreg/compiler/codegen/Test6431242.java

/*
 * Copyright (c) 2006, 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 6431242
 *
 * @run main compiler.codegen.Test6431242
 */

package compiler.codegen;

public class Test6431242 {

    int _len = 8;
    int[] _arr_i = new int[_len];
    long[] _arr_l = new long[_len];

    int[] _arr_i_cp = new int[_len];
    long[] _arr_l_cp = new long[_len];

    int _k = 0x12345678;
    int _j = 0;
    int _ir = 0x78563412;
    int _ir1 = 0x78563413;
    int _ir2 = 0x79563412;

    long _m = 0x123456789abcdef0L;
    long _l = 0L;
    long _lr = 0xf0debc9a78563412L;
    long _lr1 = 0xf0debc9a78563413L;
    long _lr2 = 0xf1debc9a78563412L;

    void init() {
        for (int i = 0; i < _arr_i.length; i++) {
            _arr_i[i] = _k;
            _arr_l[i] = _m;
        }
    }

    public int test_int_reversed(int i) {
        return Integer.reverseBytes(i);
    }

    public long test_long_reversed(long i) {
        return Long.reverseBytes(i);
    }

    public void test_copy_ints(int[] dst, int[] src) {
        for (int i = 0; i < src.length; i++) {
            dst[i] = Integer.reverseBytes(src[i]);
        }
    }

    public void test_copy_ints_reversed(int[] dst, int[] src) {
        for (int i = 0; i < src.length; i++) {
            dst[i] = 1 + Integer.reverseBytes(src[i]);
        }
    }

    public void test_copy_ints_store_reversed(int[] dst, int[] src) {
        for (int i = 0; i < src.length; i++) {
            dst[i] = Integer.reverseBytes(1 + src[i]);
        }
    }

    public void test_copy_longs(long[] dst, long[] src) {
        for (int i = 0; i < src.length; i++) {
            dst[i] = Long.reverseBytes(src[i]);
        }
    }

    public void test_copy_longs_reversed(long[] dst, long[] src) {
        for (int i = 0; i < src.length; i++) {
            dst[i] = 1 + Long.reverseBytes(src[i]);
        }
    }

    public void test_copy_longs_store_reversed(long[] dst, long[] src) {
        for (int i = 0; i < src.length; i++) {
            dst[i] = Long.reverseBytes(1 + src[i]);
        }
    }

    public void test() throws Exception {
        int up_limit = 90000;


        //test single

        for (int loop = 0; loop < up_limit; loop++) {
            _j = test_int_reversed(_k);
            if (_j != _ir) {
                throw new Exception("Interger.reverseBytes failed " + _j + " iter " + loop);
            }
            _l = test_long_reversed(_m);
            if (_l != _lr) {
                throw new Exception("Long.reverseBytes failed " + _l + " iter " + loop);
            }
        }

        // test scalar load/store
        for (int loop = 0; loop < up_limit; loop++) {

            test_copy_ints(_arr_i_cp, _arr_i);
            for (int j = 0; j < _arr_i.length; j++) {
                if (_arr_i_cp[j] != _ir) {
                    throw new Exception("Interger.reverseBytes failed test_copy_ints iter " + loop);
                }
            }

            test_copy_ints_reversed(_arr_i_cp, _arr_i);
            for (int j = 0; j < _arr_i.length; j++) {
                if (_arr_i_cp[j] != _ir1) {
                    throw new Exception("Interger.reverseBytes failed test_copy_ints_reversed iter " + loop);
                }
            }
            test_copy_ints_store_reversed(_arr_i_cp, _arr_i);
            for (int j = 0; j < _arr_i.length; j++) {
                if (_arr_i_cp[j] != _ir2) {
                    throw new Exception("Interger.reverseBytes failed test_copy_ints_store_reversed iter " + loop);
                }
            }

            test_copy_longs(_arr_l_cp, _arr_l);
            for (int j = 0; j < _arr_i.length; j++) {
                if (_arr_l_cp[j] != _lr) {
                    throw new Exception("Long.reverseBytes failed test_copy_longs iter " + loop);
                }
            }
            test_copy_longs_reversed(_arr_l_cp, _arr_l);
            for (int j = 0; j < _arr_i.length; j++) {
                if (_arr_l_cp[j] != _lr1) {
                    throw new Exception("Long.reverseBytes failed test_copy_longs_reversed iter " + loop);
                }
            }
            test_copy_longs_store_reversed(_arr_l_cp, _arr_l);
            for (int j = 0; j < _arr_i.length; j++) {
                if (_arr_l_cp[j] != _lr2) {
                    throw new Exception("Long.reverseBytes failed test_copy_longs_store_reversed iter " + loop);
                }
            }

        }
    }

    public static void main(String args[]) {
        try {
            Test6431242 t = new Test6431242();
            t.init();
            t.test();
            System.out.println("Passed");
        } catch (Exception e) {
            e.printStackTrace();
            System.out.println("Failed");
        }
    }
}