diff -r bc32f286fae0 -r d7f654633cfe test/compiler/6946040/TestCharShortByteSwap.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/compiler/6946040/TestCharShortByteSwap.java Mon Apr 26 11:27:21 2010 -0700 @@ -0,0 +1,88 @@ +/* + * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.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 -server -XX:CompileOnly=.testChar,.testShort TestCharShortByteSwap + */ + +// 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); + } + } +}