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test/compiler/6946040/TestCharShortByteSwap.java@710a3c8b516e (annotated)

test/compiler/6946040/TestCharShortByteSwap.java

Tue, 08 Aug 2017 15:57:29 +0800

author

aoqi

date

Tue, 08 Aug 2017 15:57:29 +0800

changeset 6876

710a3c8b516e

parent 4684

7369298bec7e

parent 0

f90c822e73f8

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright 2010 Google, Inc. All Rights Reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	/*
aoqi@0	26	* @test
aoqi@0	27	* @bug 6946040
aoqi@0	28	* @summary Tests Character/Short.reverseBytes and their intrinsics implementation in the server compiler
aoqi@0	29	* @run main/othervm -Xbatch -XX:CompileOnly=.testChar,.testShort TestCharShortByteSwap
aoqi@0	30	*/
aoqi@0	31
aoqi@0	32	// This test must run without any command line arguments.
aoqi@0	33
aoqi@0	34	public class TestCharShortByteSwap {
aoqi@0	35
aoqi@0	36	private static short initShort(String[] args, short v) {
aoqi@0	37	if (args.length > 0) {
aoqi@0	38	try {
aoqi@0	39	return (short) Integer.valueOf(args[0]).intValue();
aoqi@0	40	} catch (NumberFormatException e) { }
aoqi@0	41	}
aoqi@0	42	return v;
aoqi@0	43	}
aoqi@0	44
aoqi@0	45	private static char initChar(String[] args, char v) {
aoqi@0	46	if (args.length > 0) {
aoqi@0	47	try {
aoqi@0	48	return (char) Integer.valueOf(args[0]).intValue();
aoqi@0	49	} catch (NumberFormatException e) { }
aoqi@0	50	}
aoqi@0	51	return v;
aoqi@0	52	}
aoqi@0	53
aoqi@0	54	private static void testChar(char a, char b) {
aoqi@0	55	if (a != Character.reverseBytes(b)) {
aoqi@0	56	throw new RuntimeException("FAIL: " + (int)a + " != Character.reverseBytes(" + (int)b + ")");
aoqi@0	57	}
aoqi@0	58	if (b != Character.reverseBytes(a)) {
aoqi@0	59	throw new RuntimeException("FAIL: " + (int)b + " != Character.reverseBytes(" + (int)a + ")");
aoqi@0	60	}
aoqi@0	61	}
aoqi@0	62
aoqi@0	63	private static void testShort(short a, short b) {
aoqi@0	64	if (a != Short.reverseBytes(b)) {
aoqi@0	65	throw new RuntimeException("FAIL: " + (int)a + " != Short.reverseBytes(" + (int)b + ")");
aoqi@0	66	}
aoqi@0	67	if (b != Short.reverseBytes(a)) {
aoqi@0	68	throw new RuntimeException("FAIL: " + (int)b + " != Short.reverseBytes(" + (int)a + ")");
aoqi@0	69	}
aoqi@0	70	}
aoqi@0	71
aoqi@0	72	public static void main(String[] args) {
aoqi@0	73	for (int i = 0; i < 100000; ++i) { // Trigger compilation
aoqi@0	74	char c1 = initChar(args, (char) 0x0123);
aoqi@0	75	char c2 = initChar(args, (char) 0x2301);
aoqi@0	76	char c3 = initChar(args, (char) 0xaabb);
aoqi@0	77	char c4 = initChar(args, (char) 0xbbaa);
aoqi@0	78	short s1 = initShort(args, (short) 0x0123);
aoqi@0	79	short s2 = initShort(args, (short) 0x2301);
aoqi@0	80	short s3 = initShort(args, (short) 0xaabb);
aoqi@0	81	short s4 = initShort(args, (short) 0xbbaa);
aoqi@0	82	testChar(c1, c2);
aoqi@0	83	testChar(c3, c4);
aoqi@0	84	testShort(s1, s2);
aoqi@0	85	testShort(s3, s4);
aoqi@0	86	}
aoqi@0	87	}
aoqi@0	88	}