342 lines
13 KiB
Java
342 lines
13 KiB
Java
/*
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* Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 6896617
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* @summary Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() with SSE instructions on x86
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* @library /testlibrary
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* @modules java.base/sun.misc
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* java.base/sun.nio.cs
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* java.management
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* @run main/othervm/timeout=1200 -Xbatch -Xmx256m Test6896617
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*
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*/
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import jdk.test.lib.Utils;
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import java.nio.ByteBuffer;
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import java.nio.CharBuffer;
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import java.nio.charset.Charset;
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import java.nio.charset.CharsetDecoder;
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import java.nio.charset.CharsetEncoder;
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import java.nio.charset.CodingErrorAction;
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import java.util.Arrays;
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import java.util.Random;
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public class Test6896617 {
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final static int SIZE = 256;
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public static void main(String[] args) {
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String csn = "ISO-8859-1";
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Charset cs = Charset.forName(csn);
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CharsetEncoder enc = cs.newEncoder();
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enc.onMalformedInput(CodingErrorAction.REPLACE)
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.onUnmappableCharacter(CodingErrorAction.REPLACE);
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CharsetDecoder dec = cs.newDecoder();
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dec.onMalformedInput(CodingErrorAction.REPLACE)
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.onUnmappableCharacter(CodingErrorAction.REPLACE);
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byte repl = (byte)'?';
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enc.replaceWith(new byte[] { repl });
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// Use internal API for tests.
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sun.nio.cs.ArrayEncoder arrenc = (sun.nio.cs.ArrayEncoder)enc;
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sun.nio.cs.ArrayDecoder arrdec = (sun.nio.cs.ArrayDecoder)dec;
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// Populate char[] with chars which can be encoded by ISO_8859_1 (<= 0xFF)
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Random rnd = Utils.getRandomInstance();
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int maxchar = 0xFF;
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char[] a = new char[SIZE];
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byte[] b = new byte[SIZE];
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char[] at = new char[SIZE];
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byte[] bt = new byte[SIZE];
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for (int i = 0; i < SIZE; i++) {
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char c = (char) rnd.nextInt(maxchar);
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if (!enc.canEncode(c)) {
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System.out.printf("Something wrong: can't encode c=%03x\n", (int)c);
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System.exit(97);
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}
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a[i] = c;
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b[i] = (byte)c;
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at[i] = (char)-1;
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bt[i] = (byte)-1;
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}
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if (arrenc.encode(a, 0, SIZE, bt) != SIZE || !Arrays.equals(b, bt)) {
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System.out.println("Something wrong: ArrayEncoder.encode failed");
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System.exit(97);
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}
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if (arrdec.decode(b, 0, SIZE, at) != SIZE || !Arrays.equals(a, at)) {
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System.out.println("Something wrong: ArrayDecoder.decode failed");
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System.exit(97);
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}
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for (int i = 0; i < SIZE; i++) {
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at[i] = (char)-1;
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bt[i] = (byte)-1;
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}
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ByteBuffer bb = ByteBuffer.wrap(b);
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CharBuffer ba = CharBuffer.wrap(a);
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ByteBuffer bbt = ByteBuffer.wrap(bt);
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CharBuffer bat = CharBuffer.wrap(at);
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if (!enc.encode(ba, bbt, true).isUnderflow() || !Arrays.equals(b, bt)) {
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System.out.println("Something wrong: Encoder.encode failed");
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System.exit(97);
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}
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if (!dec.decode(bb, bat, true).isUnderflow() || !Arrays.equals(a, at)) {
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System.out.println("Something wrong: Decoder.decode failed");
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System.exit(97);
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}
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for (int i = 0; i < SIZE; i++) {
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at[i] = (char)-1;
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bt[i] = (byte)-1;
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}
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// Warm up
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boolean failed = false;
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int result = 0;
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for (int i = 0; i < 10000; i++) {
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result += arrenc.encode(a, 0, SIZE, bt);
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result -= arrdec.decode(b, 0, SIZE, at);
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}
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for (int i = 0; i < 10000; i++) {
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result += arrenc.encode(a, 0, SIZE, bt);
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result -= arrdec.decode(b, 0, SIZE, at);
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}
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for (int i = 0; i < 10000; i++) {
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result += arrenc.encode(a, 0, SIZE, bt);
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result -= arrdec.decode(b, 0, SIZE, at);
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}
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if (result != 0 || !Arrays.equals(b, bt) || !Arrays.equals(a, at)) {
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failed = true;
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System.out.println("Failed: ArrayEncoder.encode char[" + SIZE + "] and ArrayDecoder.decode byte[" + SIZE + "]");
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}
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for (int i = 0; i < SIZE; i++) {
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at[i] = (char)-1;
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bt[i] = (byte)-1;
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}
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boolean is_underflow = true;
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for (int i = 0; i < 10000; i++) {
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ba.clear(); bb.clear(); bat.clear(); bbt.clear();
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boolean enc_res = enc.encode(ba, bbt, true).isUnderflow();
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boolean dec_res = dec.decode(bb, bat, true).isUnderflow();
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is_underflow = is_underflow && enc_res && dec_res;
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}
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for (int i = 0; i < SIZE; i++) {
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at[i] = (char)-1;
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bt[i] = (byte)-1;
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}
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for (int i = 0; i < 10000; i++) {
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ba.clear(); bb.clear(); bat.clear(); bbt.clear();
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boolean enc_res = enc.encode(ba, bbt, true).isUnderflow();
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boolean dec_res = dec.decode(bb, bat, true).isUnderflow();
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is_underflow = is_underflow && enc_res && dec_res;
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}
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for (int i = 0; i < SIZE; i++) {
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at[i] = (char)-1;
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bt[i] = (byte)-1;
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}
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for (int i = 0; i < 10000; i++) {
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ba.clear(); bb.clear(); bat.clear(); bbt.clear();
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boolean enc_res = enc.encode(ba, bbt, true).isUnderflow();
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boolean dec_res = dec.decode(bb, bat, true).isUnderflow();
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is_underflow = is_underflow && enc_res && dec_res;
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}
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if (!is_underflow || !Arrays.equals(b, bt) || !Arrays.equals(a, at)) {
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failed = true;
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System.out.println("Failed: Encoder.encode char[" + SIZE + "] and Decoder.decode byte[" + SIZE + "]");
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}
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// Test encoder with different source and destination sizes
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System.out.println("Testing different source and destination sizes");
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for (int i = 1; i <= SIZE; i++) {
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for (int j = 1; j <= SIZE; j++) {
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bt = new byte[j];
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// very source's SIZE
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result = arrenc.encode(a, 0, i, bt);
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int l = Math.min(i, j);
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if (result != l) {
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failed = true;
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System.out.println("Failed: encode char[" + i + "] to byte[" + j + "]: result = " + result + ", expected " + l);
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}
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for (int k = 0; k < l; k++) {
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if (bt[k] != b[k]) {
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failed = true;
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System.out.println("Failed: encoded byte[" + k + "] (" + bt[k] + ") != " + b[k]);
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}
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}
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// very source's offset
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int sz = SIZE - i + 1;
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result = arrenc.encode(a, i-1, sz, bt);
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l = Math.min(sz, j);
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if (result != l) {
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failed = true;
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System.out.println("Failed: encode char[" + sz + "] to byte[" + j + "]: result = " + result + ", expected " + l);
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}
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for (int k = 0; k < l; k++) {
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if (bt[k] != b[i+k-1]) {
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failed = true;
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System.out.println("Failed: encoded byte[" + k + "] (" + bt[k] + ") != " + b[i+k-1]);
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}
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}
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}
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}
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// Test encoder with char > 0xFF
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System.out.println("Testing big char");
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byte orig = (byte)'A';
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bt = new byte[SIZE];
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for (int i = 1; i <= SIZE; i++) {
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for (int j = 0; j < i; j++) {
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a[j] += 0x100;
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// make sure to replace a different byte
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bt[j] = orig;
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result = arrenc.encode(a, 0, i, bt);
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if (result != i) {
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failed = true;
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System.out.println("Failed: encode char[" + i + "] to byte[" + i + "]: result = " + result + ", expected " + i);
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}
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if (bt[j] != repl) {
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failed = true;
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System.out.println("Failed: encoded replace byte[" + j + "] (" + bt[j] + ") != " + repl);
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}
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bt[j] = b[j]; // Restore to compare whole array
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for (int k = 0; k < i; k++) {
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if (bt[k] != b[k]) {
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failed = true;
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System.out.println("Failed: encoded byte[" + k + "] (" + bt[k] + ") != " + b[k]);
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}
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}
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a[j] -= 0x100; // Restore
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}
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}
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// Test sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() performance.
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int itrs = Integer.getInteger("iterations", 1000000);
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int size = Integer.getInteger("size", 256);
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a = new char[size];
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b = new byte[size];
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bt = new byte[size];
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for (int i = 0; i < size; i++) {
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char c = (char) rnd.nextInt(maxchar);
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if (!enc.canEncode(c)) {
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System.out.printf("Something wrong: can't encode c=%03x\n", (int)c);
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System.exit(97);
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}
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a[i] = c;
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b[i] = (byte)-1;
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bt[i] = (byte)c;
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}
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ba = CharBuffer.wrap(a);
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bb = ByteBuffer.wrap(b);
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boolean enc_res = enc.encode(ba, bb, true).isUnderflow();
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if (!enc_res || !Arrays.equals(b, bt)) {
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failed = true;
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System.out.println("Failed 1: Encoder.encode char[" + size + "]");
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}
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for (int i = 0; i < size; i++) {
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b[i] = (byte)-1;
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}
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// Make sure to recompile method if needed before performance run.
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for (int i = 0; i < 10000; i++) {
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ba.clear(); bb.clear();
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enc_res = enc_res && enc.encode(ba, bb, true).isUnderflow();
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}
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for (int i = 0; i < size; i++) {
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b[i] = (byte)-1;
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}
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for (int i = 0; i < 10000; i++) {
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ba.clear(); bb.clear();
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enc_res = enc_res && enc.encode(ba, bb, true).isUnderflow();
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}
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if (!enc_res || !Arrays.equals(b, bt)) {
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failed = true;
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System.out.println("Failed 2: Encoder.encode char[" + size + "]");
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}
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for (int i = 0; i < size; i++) {
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b[i] = (byte)-1;
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}
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System.out.println("Testing ISO_8859_1$Encode.encodeArrayLoop() performance");
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long start = System.currentTimeMillis();
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for (int i = 0; i < itrs; i++) {
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ba.clear(); bb.clear();
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enc_res = enc_res && enc.encode(ba, bb, true).isUnderflow();
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}
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long end = System.currentTimeMillis();
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if (!enc_res || !Arrays.equals(b, bt)) {
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failed = true;
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System.out.println("Failed 3: Encoder.encode char[" + size + "]");
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} else {
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System.out.println("size: " + size + " time: " + (end - start));
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}
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// Test sun.nio.cs.ISO_8859_1$Encode.encode() performance.
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// Make sure to recompile method if needed before performance run.
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result = 0;
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for (int i = 0; i < size; i++) {
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b[i] = (byte)-1;
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}
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for (int i = 0; i < 10000; i++) {
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result += arrenc.encode(a, 0, size, b);
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}
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for (int i = 0; i < size; i++) {
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b[i] = (byte)-1;
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}
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for (int i = 0; i < 10000; i++) {
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result += arrenc.encode(a, 0, size, b);
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}
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if (result != size*20000 || !Arrays.equals(b, bt)) {
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failed = true;
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System.out.println("Failed 1: ArrayEncoder.encode char[" + SIZE + "]");
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}
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for (int i = 0; i < size; i++) {
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b[i] = (byte)-1;
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}
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System.out.println("Testing ISO_8859_1$Encode.encode() performance");
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result = 0;
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start = System.currentTimeMillis();
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for (int i = 0; i < itrs; i++) {
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result += arrenc.encode(a, 0, size, b);
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}
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end = System.currentTimeMillis();
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if (!Arrays.equals(b, bt)) {
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failed = true;
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System.out.println("Failed 2: ArrayEncoder.encode char[" + size + "]");
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} else {
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System.out.println("size: " + size + " time: " + (end - start));
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}
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if (failed) {
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System.out.println("FAILED");
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System.exit(97);
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}
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System.out.println("PASSED");
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}
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}
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