jdk8-mips64-public/hotspot: test/compiler/6946040/TestCharShortByteSwap.java@710a3c8b516e

     1 /*

     2  * Copyright 2010 Google, Inc.  All Rights Reserved.

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

     4  *

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

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

     7  * published by the Free Software Foundation.

     8  *

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

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

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

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

    13  * accompanied this code).

    14  *

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

    16  * 2 along with this work; if not, write to the Free Software Foundation,

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

    18  *

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

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

    21  * questions.

    22  *

    23  */

    25 /*

    26  * @test

    27  * @bug 6946040

    28  * @summary Tests Character/Short.reverseBytes and their intrinsics implementation in the server compiler

    29  * @run main/othervm -Xbatch -XX:CompileOnly=.testChar,.testShort TestCharShortByteSwap

    30  */

    32 // This test must run without any command line arguments.

    34 public class TestCharShortByteSwap {

    36   private static short initShort(String[] args, short v) {

    37     if (args.length > 0) {

    38       try {

    39         return (short) Integer.valueOf(args[0]).intValue();

    40       } catch (NumberFormatException e) { }

    41     }

    42     return v;

    43   }

    45   private static char initChar(String[] args, char v) {

    46     if (args.length > 0) {

    47       try {

    48         return (char) Integer.valueOf(args[0]).intValue();

    49       } catch (NumberFormatException e) { }

    50     }

    51     return v;

    52   }

    54   private static void testChar(char a, char b) {

    55     if (a != Character.reverseBytes(b)) {

    56       throw new RuntimeException("FAIL: " + (int)a + " != Character.reverseBytes(" + (int)b + ")");

    57     }

    58     if (b != Character.reverseBytes(a)) {

    59       throw new RuntimeException("FAIL: " + (int)b + " != Character.reverseBytes(" + (int)a + ")");

    60     }

    61   }

    63   private static void testShort(short a, short b) {

    64     if (a != Short.reverseBytes(b)) {

    65       throw new RuntimeException("FAIL: " + (int)a + " != Short.reverseBytes(" + (int)b + ")");

    66     }

    67     if (b != Short.reverseBytes(a)) {

    68       throw new RuntimeException("FAIL: " + (int)b + " != Short.reverseBytes(" + (int)a + ")");

    69     }

    70   }

    72   public static void main(String[] args) {

    73     for (int i = 0; i < 100000; ++i) { // Trigger compilation

    74       char c1 = initChar(args, (char) 0x0123);

    75       char c2 = initChar(args, (char) 0x2301);

    76       char c3 = initChar(args, (char) 0xaabb);

    77       char c4 = initChar(args, (char) 0xbbaa);

    78       short s1 = initShort(args, (short) 0x0123);

    79       short s2 = initShort(args, (short) 0x2301);

    80       short s3 = initShort(args, (short) 0xaabb);

    81       short s4 = initShort(args, (short) 0xbbaa);

    82       testChar(c1, c2);

    83       testChar(c3, c4);

    84       testShort(s1, s2);

    85       testShort(s3, s4);

    86     }

    87   }

    88 }

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