/*

 * Copyright 2010 Google, Inc.  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 6946040

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

 *

 * @run main/othervm -Xbatch

 *      -XX:CompileCommand=compileonly,compiler.c2.TestCharShortByteSwap::testChar

 *      -XX:CompileCommand=compileonly,compiler.c2.TestCharShortByteSwap::testShort

 *      compiler.c2.TestCharShortByteSwap

 */

package compiler.c2;

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

public class TestCharShortByteSwap {

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

    if (args.length > 0) {

      try {

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

      } catch (NumberFormatException e) { }

    }

    return v;

  }

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

    if (args.length > 0) {

      try {

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

      } catch (NumberFormatException e) { }

    }

    return v;

  }

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

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

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

    }

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

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

    }

  }

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

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

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

    }

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

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

    }

  }

  public static void main(String[] args) {

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

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

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

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

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

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

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

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

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

      testChar(c1, c2);

      testChar(c3, c4);

      testShort(s1, s2);

      testShort(s3, s4);

    }

  }

}