| /* |
| * Copyright (c) 2013, 2016, Oracle and/or its affiliates. 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 6896617 |
| * @summary Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() with SSE instructions on x86 |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * java.base/sun.nio.cs |
| * java.management |
| * |
| * @run main/othervm/timeout=1200 -Xbatch -Xmx256m compiler.codegen.Test6896617 |
| */ |
| |
| package compiler.codegen; |
| |
| import jdk.test.lib.Utils; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.CharBuffer; |
| import java.nio.charset.Charset; |
| import java.nio.charset.CharsetDecoder; |
| import java.nio.charset.CharsetEncoder; |
| import java.nio.charset.CodingErrorAction; |
| import java.util.Arrays; |
| import java.util.Random; |
| |
| public class Test6896617 { |
| final static int SIZE = 256; |
| |
| public static void main(String[] args) { |
| String csn = "ISO-8859-1"; |
| Charset cs = Charset.forName(csn); |
| CharsetEncoder enc = cs.newEncoder(); |
| enc.onMalformedInput(CodingErrorAction.REPLACE) |
| .onUnmappableCharacter(CodingErrorAction.REPLACE); |
| CharsetDecoder dec = cs.newDecoder(); |
| dec.onMalformedInput(CodingErrorAction.REPLACE) |
| .onUnmappableCharacter(CodingErrorAction.REPLACE); |
| |
| byte repl = (byte)'?'; |
| enc.replaceWith(new byte[] { repl }); |
| |
| // Use internal API for tests. |
| sun.nio.cs.ArrayEncoder arrenc = (sun.nio.cs.ArrayEncoder)enc; |
| sun.nio.cs.ArrayDecoder arrdec = (sun.nio.cs.ArrayDecoder)dec; |
| |
| // Populate char[] with chars which can be encoded by ISO_8859_1 (<= 0xFF) |
| Random rnd = Utils.getRandomInstance(); |
| int maxchar = 0xFF; |
| char[] a = new char[SIZE]; |
| byte[] b = new byte[SIZE]; |
| char[] at = new char[SIZE]; |
| byte[] bt = new byte[SIZE]; |
| for (int i = 0; i < SIZE; i++) { |
| char c = (char) rnd.nextInt(maxchar); |
| if (!enc.canEncode(c)) { |
| System.out.printf("Something wrong: can't encode c=%03x\n", (int)c); |
| System.exit(97); |
| } |
| a[i] = c; |
| b[i] = (byte)c; |
| at[i] = (char)-1; |
| bt[i] = (byte)-1; |
| } |
| if (arrenc.encode(a, 0, SIZE, bt) != SIZE || !Arrays.equals(b, bt)) { |
| System.out.println("Something wrong: ArrayEncoder.encode failed"); |
| System.exit(97); |
| } |
| if (arrdec.decode(b, 0, SIZE, at) != SIZE || !Arrays.equals(a, at)) { |
| System.out.println("Something wrong: ArrayDecoder.decode failed"); |
| System.exit(97); |
| } |
| for (int i = 0; i < SIZE; i++) { |
| at[i] = (char)-1; |
| bt[i] = (byte)-1; |
| } |
| |
| ByteBuffer bb = ByteBuffer.wrap(b); |
| CharBuffer ba = CharBuffer.wrap(a); |
| ByteBuffer bbt = ByteBuffer.wrap(bt); |
| CharBuffer bat = CharBuffer.wrap(at); |
| if (!enc.encode(ba, bbt, true).isUnderflow() || !Arrays.equals(b, bt)) { |
| System.out.println("Something wrong: Encoder.encode failed"); |
| System.exit(97); |
| } |
| if (!dec.decode(bb, bat, true).isUnderflow() || !Arrays.equals(a, at)) { |
| System.out.println("Something wrong: Decoder.decode failed"); |
| System.exit(97); |
| } |
| for (int i = 0; i < SIZE; i++) { |
| at[i] = (char)-1; |
| bt[i] = (byte)-1; |
| } |
| |
| // Warm up |
| boolean failed = false; |
| int result = 0; |
| for (int i = 0; i < 10000; i++) { |
| result += arrenc.encode(a, 0, SIZE, bt); |
| result -= arrdec.decode(b, 0, SIZE, at); |
| } |
| for (int i = 0; i < 10000; i++) { |
| result += arrenc.encode(a, 0, SIZE, bt); |
| result -= arrdec.decode(b, 0, SIZE, at); |
| } |
| for (int i = 0; i < 10000; i++) { |
| result += arrenc.encode(a, 0, SIZE, bt); |
| result -= arrdec.decode(b, 0, SIZE, at); |
| } |
| if (result != 0 || !Arrays.equals(b, bt) || !Arrays.equals(a, at)) { |
| failed = true; |
| System.out.println("Failed: ArrayEncoder.encode char[" + SIZE + "] and ArrayDecoder.decode byte[" + SIZE + "]"); |
| } |
| for (int i = 0; i < SIZE; i++) { |
| at[i] = (char)-1; |
| bt[i] = (byte)-1; |
| } |
| |
| boolean is_underflow = true; |
| for (int i = 0; i < 10000; i++) { |
| ba.clear(); bb.clear(); bat.clear(); bbt.clear(); |
| boolean enc_res = enc.encode(ba, bbt, true).isUnderflow(); |
| boolean dec_res = dec.decode(bb, bat, true).isUnderflow(); |
| is_underflow = is_underflow && enc_res && dec_res; |
| } |
| for (int i = 0; i < SIZE; i++) { |
| at[i] = (char)-1; |
| bt[i] = (byte)-1; |
| } |
| for (int i = 0; i < 10000; i++) { |
| ba.clear(); bb.clear(); bat.clear(); bbt.clear(); |
| boolean enc_res = enc.encode(ba, bbt, true).isUnderflow(); |
| boolean dec_res = dec.decode(bb, bat, true).isUnderflow(); |
| is_underflow = is_underflow && enc_res && dec_res; |
| } |
| for (int i = 0; i < SIZE; i++) { |
| at[i] = (char)-1; |
| bt[i] = (byte)-1; |
| } |
| for (int i = 0; i < 10000; i++) { |
| ba.clear(); bb.clear(); bat.clear(); bbt.clear(); |
| boolean enc_res = enc.encode(ba, bbt, true).isUnderflow(); |
| boolean dec_res = dec.decode(bb, bat, true).isUnderflow(); |
| is_underflow = is_underflow && enc_res && dec_res; |
| } |
| if (!is_underflow || !Arrays.equals(b, bt) || !Arrays.equals(a, at)) { |
| failed = true; |
| System.out.println("Failed: Encoder.encode char[" + SIZE + "] and Decoder.decode byte[" + SIZE + "]"); |
| } |
| |
| // Test encoder with different source and destination sizes |
| System.out.println("Testing different source and destination sizes"); |
| for (int i = 1; i <= SIZE; i++) { |
| for (int j = 1; j <= SIZE; j++) { |
| bt = new byte[j]; |
| // very source's SIZE |
| result = arrenc.encode(a, 0, i, bt); |
| int l = Math.min(i, j); |
| if (result != l) { |
| failed = true; |
| System.out.println("Failed: encode char[" + i + "] to byte[" + j + "]: result = " + result + ", expected " + l); |
| } |
| for (int k = 0; k < l; k++) { |
| if (bt[k] != b[k]) { |
| failed = true; |
| System.out.println("Failed: encoded byte[" + k + "] (" + bt[k] + ") != " + b[k]); |
| } |
| } |
| // very source's offset |
| int sz = SIZE - i + 1; |
| result = arrenc.encode(a, i-1, sz, bt); |
| l = Math.min(sz, j); |
| if (result != l) { |
| failed = true; |
| System.out.println("Failed: encode char[" + sz + "] to byte[" + j + "]: result = " + result + ", expected " + l); |
| } |
| for (int k = 0; k < l; k++) { |
| if (bt[k] != b[i+k-1]) { |
| failed = true; |
| System.out.println("Failed: encoded byte[" + k + "] (" + bt[k] + ") != " + b[i+k-1]); |
| } |
| } |
| } |
| } |
| |
| // Test encoder with char > 0xFF |
| System.out.println("Testing big char"); |
| |
| byte orig = (byte)'A'; |
| bt = new byte[SIZE]; |
| for (int i = 1; i <= SIZE; i++) { |
| for (int j = 0; j < i; j++) { |
| a[j] += 0x100; |
| // make sure to replace a different byte |
| bt[j] = orig; |
| result = arrenc.encode(a, 0, i, bt); |
| if (result != i) { |
| failed = true; |
| System.out.println("Failed: encode char[" + i + "] to byte[" + i + "]: result = " + result + ", expected " + i); |
| } |
| if (bt[j] != repl) { |
| failed = true; |
| System.out.println("Failed: encoded replace byte[" + j + "] (" + bt[j] + ") != " + repl); |
| } |
| bt[j] = b[j]; // Restore to compare whole array |
| for (int k = 0; k < i; k++) { |
| if (bt[k] != b[k]) { |
| failed = true; |
| System.out.println("Failed: encoded byte[" + k + "] (" + bt[k] + ") != " + b[k]); |
| } |
| } |
| a[j] -= 0x100; // Restore |
| } |
| } |
| |
| // Test sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() performance. |
| |
| int itrs = Integer.getInteger("iterations", 1000000); |
| int size = Integer.getInteger("size", 256); |
| a = new char[size]; |
| b = new byte[size]; |
| bt = new byte[size]; |
| for (int i = 0; i < size; i++) { |
| char c = (char) rnd.nextInt(maxchar); |
| if (!enc.canEncode(c)) { |
| System.out.printf("Something wrong: can't encode c=%03x\n", (int)c); |
| System.exit(97); |
| } |
| a[i] = c; |
| b[i] = (byte)-1; |
| bt[i] = (byte)c; |
| } |
| ba = CharBuffer.wrap(a); |
| bb = ByteBuffer.wrap(b); |
| boolean enc_res = enc.encode(ba, bb, true).isUnderflow(); |
| if (!enc_res || !Arrays.equals(b, bt)) { |
| failed = true; |
| System.out.println("Failed 1: Encoder.encode char[" + size + "]"); |
| } |
| for (int i = 0; i < size; i++) { |
| b[i] = (byte)-1; |
| } |
| |
| // Make sure to recompile method if needed before performance run. |
| for (int i = 0; i < 10000; i++) { |
| ba.clear(); bb.clear(); |
| enc_res = enc_res && enc.encode(ba, bb, true).isUnderflow(); |
| } |
| for (int i = 0; i < size; i++) { |
| b[i] = (byte)-1; |
| } |
| for (int i = 0; i < 10000; i++) { |
| ba.clear(); bb.clear(); |
| enc_res = enc_res && enc.encode(ba, bb, true).isUnderflow(); |
| } |
| if (!enc_res || !Arrays.equals(b, bt)) { |
| failed = true; |
| System.out.println("Failed 2: Encoder.encode char[" + size + "]"); |
| } |
| for (int i = 0; i < size; i++) { |
| b[i] = (byte)-1; |
| } |
| |
| System.out.println("Testing ISO_8859_1$Encode.encodeArrayLoop() performance"); |
| long start = System.currentTimeMillis(); |
| for (int i = 0; i < itrs; i++) { |
| ba.clear(); bb.clear(); |
| enc_res = enc_res && enc.encode(ba, bb, true).isUnderflow(); |
| } |
| long end = System.currentTimeMillis(); |
| if (!enc_res || !Arrays.equals(b, bt)) { |
| failed = true; |
| System.out.println("Failed 3: Encoder.encode char[" + size + "]"); |
| } else { |
| System.out.println("size: " + size + " time: " + (end - start)); |
| } |
| |
| // Test sun.nio.cs.ISO_8859_1$Encode.encode() performance. |
| |
| // Make sure to recompile method if needed before performance run. |
| result = 0; |
| for (int i = 0; i < size; i++) { |
| b[i] = (byte)-1; |
| } |
| for (int i = 0; i < 10000; i++) { |
| result += arrenc.encode(a, 0, size, b); |
| } |
| for (int i = 0; i < size; i++) { |
| b[i] = (byte)-1; |
| } |
| for (int i = 0; i < 10000; i++) { |
| result += arrenc.encode(a, 0, size, b); |
| } |
| if (result != size*20000 || !Arrays.equals(b, bt)) { |
| failed = true; |
| System.out.println("Failed 1: ArrayEncoder.encode char[" + SIZE + "]"); |
| } |
| for (int i = 0; i < size; i++) { |
| b[i] = (byte)-1; |
| } |
| |
| System.out.println("Testing ISO_8859_1$Encode.encode() performance"); |
| result = 0; |
| start = System.currentTimeMillis(); |
| for (int i = 0; i < itrs; i++) { |
| result += arrenc.encode(a, 0, size, b); |
| } |
| end = System.currentTimeMillis(); |
| if (!Arrays.equals(b, bt)) { |
| failed = true; |
| System.out.println("Failed 2: ArrayEncoder.encode char[" + size + "]"); |
| } else { |
| System.out.println("size: " + size + " time: " + (end - start)); |
| } |
| |
| if (failed) { |
| System.out.println("FAILED"); |
| System.exit(97); |
| } |
| System.out.println("PASSED"); |
| } |
| } |