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/*
* Copyright (c) 2023, 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.
*/
package compiler.vectorapi;
import jdk.incubator.vector.ByteVector;
import jdk.incubator.vector.ShortVector;
import jdk.incubator.vector.VectorSpecies;
/*
* @test
* @bug 8303508
* @summary Vector.lane() gets wrong value on x86
* @modules jdk.incubator.vector
* @library /test/lib
*
* @run main/othervm -Xbatch -XX:-TieredCompilation -ea compiler.vectorapi.Test8303508
*/
public class Test8303508 {
static final VectorSpecies<Byte> BSPECIES_128 = ByteVector.SPECIES_128;
static final VectorSpecies<Short> SSPECIES_128 = ShortVector.SPECIES_128;
static final byte[] ba = {0, -1, -2, -3, -4, -5, -6, -7, -8, -9, -10, -11, -12, -13, -14, -15};
static final short[] sa = {0, -1, -2, -3, -4, -5, -6, -7};
private static byte vec_extract_byte(int idx) {
var bv = ByteVector.fromArray(BSPECIES_128, ba, 0);
return bv.lane(idx);
}
private static short vec_extract_short(int idx) {
var sv = ShortVector.fromArray(SSPECIES_128, sa, 0);
return sv.lane(idx);
}
public static void main(String[] args) {
int idx = 0;
int actual = 0;
int expected = 0;
for (int i = 0; i < 10000; i++) {
idx = i & 0xF;
actual = vec_extract_byte(idx);
expected = ba[idx];
if (actual != expected) {
throw new AssertionError("incorrect result byte extraction, actual = " + actual + " expected = " + expected);
}
idx = i & 0x7;
actual = vec_extract_short(idx);
expected = sa[idx];
if (actual != expected) {
throw new AssertionError("incorrect result short extraction, actual = " + actual + " expected = " + expected);
}
}
System.out.println("PASS");
}
}
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