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/*
* Copyright (c) 2021, 2024, 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.
*/
import org.testng.Assert;
import org.testng.annotations.Test;
import org.testng.annotations.DataProvider;
import java.nio.ByteOrder;
import java.util.Arrays;
import java.util.List;
import java.util.function.IntFunction;
import java.util.function.IntUnaryOperator;
import java.lang.foreign.MemorySegment;
import jdk.incubator.vector.*;
import jdk.internal.vm.annotation.ForceInline;
/*
* @test
* @bug 8260473
* @requires vm.gc.Z
* @modules jdk.incubator.vector
* @modules java.base/jdk.internal.vm.annotation
* @run testng/othervm -XX:CompileCommand=compileonly,jdk/incubator/vector/ByteVector.fromMemorySegment
* -XX:-TieredCompilation -XX:CICompilerCount=1 -XX:+UseZGC -Xbatch -Xmx256m VectorRebracket128Test
*/
@Test
public class VectorRebracket128Test {
static final int INVOC_COUNT = Integer.getInteger("jtreg.compiler.vectorapi.vectorrebracket128test.loop-iterations", 1000);
static final int NUM_ITER = 200 * INVOC_COUNT;
static final VectorSpecies<Integer> ispec128 = IntVector.SPECIES_128;
static final VectorSpecies<Float> fspec128 = FloatVector.SPECIES_128;
static final VectorSpecies<Long> lspec128 = LongVector.SPECIES_128;
static final VectorSpecies<Double> dspec128 = DoubleVector.SPECIES_128;
static final VectorSpecies<Byte> bspec128 = ByteVector.SPECIES_128;
static final VectorSpecies<Short> sspec128 = ShortVector.SPECIES_128;
static <T> IntFunction<T> withToString(String s, IntFunction<T> f) {
return new IntFunction<T>() {
@Override
public T apply(int v) {
return f.apply(v);
}
@Override
public String toString() {
return s;
}
};
}
interface ToByteF {
byte apply(int i);
}
static byte[] fill_byte(int s , ToByteF f) {
return fill_byte(new byte[s], f);
}
static byte[] fill_byte(byte[] a, ToByteF f) {
for (int i = 0; i < a.length; i++) {
a[i] = f.apply(i);
}
return a;
}
static final List<IntFunction<byte[]>> BYTE_GENERATORS = List.of(
withToString("byte(i)", (int s) -> {
return fill_byte(s, i -> (byte)(i+1));
})
);
@DataProvider
public Object[][] byteUnaryOpProvider() {
return BYTE_GENERATORS.stream().
map(f -> new Object[]{f}).
toArray(Object[][]::new);
}
static
void checkPartialResult(VectorSpecies<?> a, VectorSpecies<?> b,
byte[] input, byte[] output, byte[] expected,
int part, int origin) {
if (Arrays.equals(expected, output)) {
return;
}
int block;
block = Math.min(a.vectorByteSize(), b.vectorByteSize());
System.out.println("input: "+Arrays.toString(input));
System.out.println("Failing with "+a+"->"+b+
" (reinterpret)"+
", block=" + block +
", part=" + part +
", origin=" + origin);
System.out.println("expect: "+Arrays.toString(expected));
System.out.println("output: "+Arrays.toString(output));
Assert.assertEquals(expected, output);
}
@ForceInline
static <E,F>
void testVectorRebracket(VectorSpecies<E> a, VectorSpecies<F> b,
byte[] input, byte[] output,
MemorySegment msInput, MemorySegment msOutput) {
Vector<E> av = a.fromMemorySegment(msInput, 0, ByteOrder.nativeOrder());
int block;
assert(input.length == output.length);
block = Math.min(a.vectorByteSize(), b.vectorByteSize());
if (false)
System.out.println("testing "+a+"->"+b+
(false?" (lanewise)":" (reinterpret)")+
", block=" + block);
byte[] expected;
int origin;
int part = 0;
Vector<F> bv = av.reinterpretShape(b, part);
bv.intoMemorySegment(msOutput, 0, ByteOrder.nativeOrder());
// in-place copy, no resize
expected = input;
origin = 0;
checkPartialResult(a, b, input, output, expected,
part, origin);
}
@Test(dataProvider = "byteUnaryOpProvider")
static void testRebracket128(IntFunction<byte[]> fa) {
byte[] barr = fa.apply(128/Byte.SIZE);
byte[] bout = new byte[barr.length];
MemorySegment msin = MemorySegment.ofArray(barr);
MemorySegment msout = MemorySegment.ofArray(bout);
for (int i = 0; i < NUM_ITER; i++) {
testVectorRebracket(bspec128, bspec128, barr, bout, msin, msout);
testVectorRebracket(bspec128, sspec128, barr, bout, msin, msout);
testVectorRebracket(bspec128, ispec128, barr, bout, msin, msout);
}
}
}
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