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/*
* 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);
}
}
}
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