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