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/*
* @test
* @bug 6896617
* @summary Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() with SSE instructions on x86
* @library /testlibrary
* @modules java.base/sun.misc
* java.base/sun.nio.cs
* java.management
* @run main/othervm/timeout=1200 -Xbatch -Xmx256m Test6896617
*
*/
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");
}
}