undefect. CWE-407 — 63 sites patched across 27 ecosystems
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
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test/hotspot/jtreg/compiler/vectorapi/VectorCompressTest.java
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test/hotspot/jtreg/compiler/vectorapi/VectorCompressTest.java
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/*
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* Copyright (c) 2025, NVIDIA CORPORATION & 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 compiler.lib.generators.*;
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import compiler.lib.ir_framework.*;
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import jdk.incubator.vector.*;
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import jdk.test.lib.Asserts;
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/**
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* @test
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* @bug 8366333
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* @key randomness
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* @library /test/lib /
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* @summary IR test for VectorAPI compress
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* @modules jdk.incubator.vector
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*
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* @run driver compiler.vectorapi.VectorCompressTest
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*/
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public class VectorCompressTest {
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static final VectorSpecies<Byte> B_SPECIES = ByteVector.SPECIES_MAX;
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static final VectorSpecies<Short> S_SPECIES = ShortVector.SPECIES_MAX;
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static final VectorSpecies<Integer> I_SPECIES = IntVector.SPECIES_MAX;
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static final VectorSpecies<Float> F_SPECIES = FloatVector.SPECIES_MAX;
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static final VectorSpecies<Long> L_SPECIES = LongVector.SPECIES_MAX;
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static final VectorSpecies<Double> D_SPECIES = DoubleVector.SPECIES_MAX;
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static final int LENGTH = 512;
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static final Generators RD = Generators.G;
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static byte[] ba, bb;
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static short[] sa, sb;
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static int[] ia, ib;
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static long[] la, lb;
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static float[] fa, fb;
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static double[] da, db;
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static boolean[] ma;
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static {
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ba = new byte[LENGTH];
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bb = new byte[LENGTH];
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sa = new short[LENGTH];
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sb = new short[LENGTH];
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ia = new int[LENGTH];
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ib = new int[LENGTH];
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la = new long[LENGTH];
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lb = new long[LENGTH];
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fa = new float[LENGTH];
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fb = new float[LENGTH];
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da = new double[LENGTH];
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db = new double[LENGTH];
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ma = new boolean[LENGTH];
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Generator<Integer> iGen = RD.ints();
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Generator<Long> lGen = RD.longs();
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Generator<Float> fGen = RD.floats();
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Generator<Double> dGen = RD.doubles();
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for (int i = 0; i < LENGTH; i++) {
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ba[i] = iGen.next().byteValue();
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sa[i] = iGen.next().shortValue();
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ma[i] = iGen.next() % 2 == 0;
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}
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RD.fill(iGen, ia);
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RD.fill(lGen, la);
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RD.fill(fGen, fa);
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RD.fill(dGen, da);
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}
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@DontInline
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static void verifyVectorCompressByte(int vlen) {
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int index = 0;
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for (int i = 0; i < vlen; i++) {
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if (ma[i]) {
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Asserts.assertEquals(ba[i], bb[index++]);
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}
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}
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for (int i = index; i < vlen; i++) {
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Asserts.assertEquals((byte)0, bb[i]);
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}
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}
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@DontInline
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static void verifyVectorCompressShort(int vlen) {
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int index = 0;
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for (int i = 0; i < vlen; i++) {
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if (ma[i]) {
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Asserts.assertEquals(sa[i], sb[index++]);
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}
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}
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for (int i = index; i < vlen; i++) {
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Asserts.assertEquals((short)0, sb[i]);
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}
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}
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@DontInline
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static void verifyVectorCompressInteger(int vlen) {
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int index = 0;
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for (int i = 0; i < vlen; i++) {
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if (ma[i]) {
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Asserts.assertEquals(ia[i], ib[index++]);
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}
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}
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for (int i = index; i < vlen; i++) {
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Asserts.assertEquals(0, ib[i]);
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}
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}
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@DontInline
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static void verifyVectorCompressLong(int vlen) {
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int index = 0;
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for (int i = 0; i < vlen; i++) {
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if (ma[i]) {
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Asserts.assertEquals(la[i], lb[index++]);
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}
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}
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for (int i = index; i < vlen; i++) {
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Asserts.assertEquals(0L, lb[i]);
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}
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}
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@DontInline
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static void verifyVectorCompressFloat(int vlen) {
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int index = 0;
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for (int i = 0; i < vlen; i++) {
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if (ma[i]) {
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Asserts.assertEquals(fa[i], fb[index++]);
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}
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}
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for (int i = index; i < vlen; i++) {
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Asserts.assertEquals(0.0f, fb[i]);
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}
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}
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@DontInline
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static void verifyVectorCompressDouble(int vlen) {
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int index = 0;
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for (int i = 0; i < vlen; i++) {
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if (ma[i]) {
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Asserts.assertEquals(da[i], db[index++]);
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}
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}
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for (int i = index; i < vlen; i++) {
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Asserts.assertEquals(0.0, db[i]);
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}
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}
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@Test
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@IR(counts = { IRNode.COMPRESS_VB, "= 1" },
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applyIfCPUFeature = { "sve", "true" })
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@IR(counts = { IRNode.COMPRESS_VB, "= 1" },
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applyIfCPUFeatureAnd = {"avx512_vbmi2", "true", "avx512vl", "true"})
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public static void testVectorCompressByte() {
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ByteVector av = ByteVector.fromArray(B_SPECIES, ba, 0);
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VectorMask<Byte> m = VectorMask.fromArray(B_SPECIES, ma, 0);
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av.compress(m).intoArray(bb, 0);
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verifyVectorCompressByte(B_SPECIES.length());
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}
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@Test
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@IR(counts = { IRNode.COMPRESS_VS, "= 1" },
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applyIfCPUFeature = { "sve", "true" })
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@IR(counts = { IRNode.COMPRESS_VS, "= 1" },
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applyIfCPUFeatureAnd = {"avx512_vbmi2", "true", "avx512vl", "true"})
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public static void testVectorCompressShort() {
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ShortVector av = ShortVector.fromArray(S_SPECIES, sa, 0);
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VectorMask<Short> m = VectorMask.fromArray(S_SPECIES, ma, 0);
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av.compress(m).intoArray(sb, 0);
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verifyVectorCompressShort(S_SPECIES.length());
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}
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@Test
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@IR(counts = { IRNode.COMPRESS_VI, "= 1" },
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applyIfCPUFeature = { "sve", "true" })
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@IR(counts = { IRNode.COMPRESS_VI, "= 1" },
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applyIfCPUFeatureAnd = {"avx512f", "true", "avx512vl", "true"})
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public static void testVectorCompressInt() {
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IntVector av = IntVector.fromArray(I_SPECIES, ia, 0);
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VectorMask<Integer> m = VectorMask.fromArray(I_SPECIES, ma, 0);
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av.compress(m).intoArray(ib, 0);
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verifyVectorCompressInteger(I_SPECIES.length());
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}
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@Test
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@IR(counts = { IRNode.COMPRESS_VL, "= 1" },
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applyIfCPUFeature = { "sve", "true" })
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@IR(counts = { IRNode.COMPRESS_VL, "= 1" },
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applyIfCPUFeatureAnd = {"avx512f", "true", "avx512vl", "true"})
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public static void testVectorCompressLong() {
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LongVector av = LongVector.fromArray(L_SPECIES, la, 0);
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VectorMask<Long> m = VectorMask.fromArray(L_SPECIES, ma, 0);
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av.compress(m).intoArray(lb, 0);
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verifyVectorCompressLong(L_SPECIES.length());
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}
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@Test
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@IR(counts = { IRNode.COMPRESS_VF, "= 1" },
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applyIfCPUFeature = { "sve", "true" })
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@IR(counts = { IRNode.COMPRESS_VF, "= 1" },
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applyIfCPUFeatureAnd = {"avx512f", "true", "avx512vl", "true"})
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public static void testVectorCompressFloat() {
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FloatVector av = FloatVector.fromArray(F_SPECIES, fa, 0);
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VectorMask<Float> m = VectorMask.fromArray(F_SPECIES, ma, 0);
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av.compress(m).intoArray(fb, 0);
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verifyVectorCompressFloat(F_SPECIES.length());
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}
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@Test
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@IR(counts = { IRNode.COMPRESS_VD, "= 1" },
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applyIfCPUFeature = { "sve", "true" })
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@IR(counts = { IRNode.COMPRESS_VD, "= 1" },
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applyIfCPUFeatureAnd = {"avx512f", "true", "avx512vl", "true"})
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public static void testVectorCompressDouble() {
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DoubleVector av = DoubleVector.fromArray(D_SPECIES, da, 0);
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VectorMask<Double> m = VectorMask.fromArray(D_SPECIES, ma, 0);
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av.compress(m).intoArray(db, 0);
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verifyVectorCompressDouble(D_SPECIES.length());
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}
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public static void main(String[] args) {
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TestFramework testFramework = new TestFramework();
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testFramework.setDefaultWarmup(10000)
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.addFlags("--add-modules=jdk.incubator.vector")
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.start();
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}
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}
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