jdk/test/hotspot/jtreg/compiler/vectorapi/VectorUMinMaxReductionTest.java
Eric Fang d0e9730783 8372980: [VectorAPI] AArch64: Add intrinsic support for unsigned min/max reduction operations
Co-authored-by: Andrew Haley <aph@openjdk.org>
Reviewed-by: aph, xgong
2026-02-05 07:58:33 +00:00

298 lines
12 KiB
Java

/*
* Copyright (c) 2026, NVIDIA CORPORATION & 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 compiler.lib.generators.*;
import compiler.lib.ir_framework.*;
import jdk.incubator.vector.*;
import jdk.test.lib.Asserts;
import java.util.function.BinaryOperator;
/**
* @test
* @bug 8372980
* @key randomness
* @summary Add intrinsic support for unsigned min/max reduction operations
* @library /test/lib /
* @modules jdk.incubator.vector
* @run driver compiler.vectorapi.VectorUMinMaxReductionTest
*/
public class VectorUMinMaxReductionTest {
private static final VectorSpecies<Byte> B_SPECIES = ByteVector.SPECIES_MAX;
private static final VectorSpecies<Short> S_SPECIES = ShortVector.SPECIES_MAX;
private static final VectorSpecies<Integer> I_SPECIES = IntVector.SPECIES_MAX;
private static final VectorSpecies<Float> F_SPECIES = FloatVector.SPECIES_MAX;
private static final VectorSpecies<Long> L_SPECIES = LongVector.SPECIES_MAX;
private static final VectorSpecies<Double> D_SPECIES = DoubleVector.SPECIES_MAX;
private static final int LENGTH = 256;
private static final Generators RD = Generators.G;
// Identity values for unsigned min/max operations
private static final byte BYTE_UMIN_IDENTITY = (byte) -1;
private static final byte BYTE_UMAX_IDENTITY = (byte) 0;
private static final short SHORT_UMIN_IDENTITY = (short) -1;
private static final short SHORT_UMAX_IDENTITY = (short) 0;
private static final int INT_UMIN_IDENTITY = -1;
private static final int INT_UMAX_IDENTITY = 0;
private static final long LONG_UMIN_IDENTITY = -1L;
private static final long LONG_UMAX_IDENTITY = 0L;
private static byte[] ba;
private static short[] sa;
private static int[] ia;
private static long[] la;
private static boolean[] ma;
static {
ba = new byte[LENGTH];
sa = new short[LENGTH];
ia = new int[LENGTH];
la = new long[LENGTH];
ma = new boolean[LENGTH];
Generator<Integer> iGen = RD.ints();
Generator<Long> lGen = RD.longs();
for (int i = 0; i < LENGTH; i++) {
ba[i] = iGen.next().byteValue();
sa[i] = iGen.next().shortValue();
ma[i] = iGen.next() % 2 == 0;
}
RD.fill(iGen, ia);
RD.fill(lGen, la);
}
// ==================== Helper Functions ====================
@DontInline
private static void verifyByte(VectorSpecies<Byte> species, byte got, byte init,
BinaryOperator<Byte> op, boolean isMasked) {
byte expected = init;
for (int i = 0; i < species.length(); i++) {
if (!isMasked || ma[i]) {
expected = op.apply(expected, ba[i]);
}
}
Asserts.assertEquals(expected, got);
}
@DontInline
private static void verifyShort(VectorSpecies<Short> species, short got, short init,
BinaryOperator<Short> op, boolean isMasked) {
short expected = init;
for (int i = 0; i < species.length(); i++) {
if (!isMasked || ma[i]) {
expected = op.apply(expected, sa[i]);
}
}
Asserts.assertEquals(expected, got);
}
@DontInline
private static void verifyInt(VectorSpecies<Integer> species, int got, int init,
BinaryOperator<Integer> op, boolean isMasked) {
int expected = init;
for (int i = 0; i < species.length(); i++) {
if (!isMasked || ma[i]) {
expected = op.apply(expected, ia[i]);
}
}
Asserts.assertEquals(expected, got);
}
@DontInline
private static void verifyLong(VectorSpecies<Long> species, long got, long init,
BinaryOperator<Long> op, boolean isMasked) {
long expected = init;
for (int i = 0; i < species.length(); i++) {
if (!isMasked || ma[i]) {
expected = op.apply(expected, la[i]);
}
}
Asserts.assertEquals(expected, got);
}
// ==================== Byte Tests ====================
@Test
@IR(counts = {IRNode.UMIN_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testByteUMin() {
byte got = ByteVector.fromArray(B_SPECIES, ba, 0).reduceLanes(VectorOperators.UMIN);
verifyByte(B_SPECIES, got, BYTE_UMIN_IDENTITY, VectorMath::minUnsigned, false);
}
@Test
@IR(counts = {IRNode.UMAX_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testByteUMax() {
byte got = ByteVector.fromArray(B_SPECIES, ba, 0).reduceLanes(VectorOperators.UMAX);
verifyByte(B_SPECIES, got, BYTE_UMAX_IDENTITY, VectorMath::maxUnsigned, false);
}
@Test
@IR(counts = {IRNode.UMIN_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testByteUMinMasked() {
byte got = ByteVector.fromArray(B_SPECIES, ba, 0)
.reduceLanes(VectorOperators.UMIN,
VectorMask.fromArray(B_SPECIES, ma, 0));
verifyByte(B_SPECIES, got, BYTE_UMIN_IDENTITY, VectorMath::minUnsigned, true);
}
@Test
@IR(counts = {IRNode.UMAX_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testByteUMaxMasked() {
byte got = ByteVector.fromArray(B_SPECIES, ba, 0)
.reduceLanes(VectorOperators.UMAX,
VectorMask.fromArray(B_SPECIES, ma, 0));
verifyByte(B_SPECIES, got, BYTE_UMAX_IDENTITY, VectorMath::maxUnsigned, true);
}
// ==================== Short Tests ====================
@Test
@IR(counts = {IRNode.UMIN_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testShortUMin() {
short got = ShortVector.fromArray(S_SPECIES, sa, 0).reduceLanes(VectorOperators.UMIN);
verifyShort(S_SPECIES, got, SHORT_UMIN_IDENTITY, VectorMath::minUnsigned, false);
}
@Test
@IR(counts = {IRNode.UMAX_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testShortUMax() {
short got = ShortVector.fromArray(S_SPECIES, sa, 0).reduceLanes(VectorOperators.UMAX);
verifyShort(S_SPECIES, got, SHORT_UMAX_IDENTITY, VectorMath::maxUnsigned, false);
}
@Test
@IR(counts = {IRNode.UMIN_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testShortUMinMasked() {
short got = ShortVector.fromArray(S_SPECIES, sa, 0)
.reduceLanes(VectorOperators.UMIN,
VectorMask.fromArray(S_SPECIES, ma, 0));
verifyShort(S_SPECIES, got, SHORT_UMIN_IDENTITY, VectorMath::minUnsigned, true);
}
@Test
@IR(counts = {IRNode.UMAX_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testShortUMaxMasked() {
short got = ShortVector.fromArray(S_SPECIES, sa, 0)
.reduceLanes(VectorOperators.UMAX,
VectorMask.fromArray(S_SPECIES, ma, 0));
verifyShort(S_SPECIES, got, SHORT_UMAX_IDENTITY, VectorMath::maxUnsigned, true);
}
// ==================== Int Tests ====================
@Test
@IR(counts = {IRNode.UMIN_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testIntUMin() {
int got = IntVector.fromArray(I_SPECIES, ia, 0).reduceLanes(VectorOperators.UMIN);
verifyInt(I_SPECIES, got, INT_UMIN_IDENTITY, VectorMath::minUnsigned, false);
}
@Test
@IR(counts = {IRNode.UMAX_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testIntUMax() {
int got = IntVector.fromArray(I_SPECIES, ia, 0).reduceLanes(VectorOperators.UMAX);
verifyInt(I_SPECIES, got, INT_UMAX_IDENTITY, VectorMath::maxUnsigned, false);
}
@Test
@IR(counts = {IRNode.UMIN_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testIntUMinMasked() {
int got = IntVector.fromArray(I_SPECIES, ia, 0)
.reduceLanes(VectorOperators.UMIN,
VectorMask.fromArray(I_SPECIES, ma, 0));
verifyInt(I_SPECIES, got, INT_UMIN_IDENTITY, VectorMath::minUnsigned, true);
}
@Test
@IR(counts = {IRNode.UMAX_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testIntUMaxMasked() {
int got = IntVector.fromArray(I_SPECIES, ia, 0)
.reduceLanes(VectorOperators.UMAX,
VectorMask.fromArray(I_SPECIES, ma, 0));
verifyInt(I_SPECIES, got, INT_UMAX_IDENTITY, VectorMath::maxUnsigned, true);
}
// ==================== Long Tests ====================
@Test
@IR(counts = {IRNode.UMIN_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testLongUMin() {
long got = LongVector.fromArray(L_SPECIES, la, 0).reduceLanes(VectorOperators.UMIN);
verifyLong(L_SPECIES, got, LONG_UMIN_IDENTITY, VectorMath::minUnsigned, false);
}
@Test
@IR(counts = {IRNode.UMAX_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testLongUMax() {
long got = LongVector.fromArray(L_SPECIES, la, 0).reduceLanes(VectorOperators.UMAX);
verifyLong(L_SPECIES, got, LONG_UMAX_IDENTITY, VectorMath::maxUnsigned, false);
}
@Test
@IR(counts = {IRNode.UMIN_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testLongUMinMasked() {
long got = LongVector.fromArray(L_SPECIES, la, 0)
.reduceLanes(VectorOperators.UMIN,
VectorMask.fromArray(L_SPECIES, ma, 0));
verifyLong(L_SPECIES, got, LONG_UMIN_IDENTITY, VectorMath::minUnsigned, true);
}
@Test
@IR(counts = {IRNode.UMAX_REDUCTION_V, "= 1"},
applyIfCPUFeature = {"asimd", "true"})
public static void testLongUMaxMasked() {
long got = LongVector.fromArray(L_SPECIES, la, 0)
.reduceLanes(VectorOperators.UMAX,
VectorMask.fromArray(L_SPECIES, ma, 0));
verifyLong(L_SPECIES, got, LONG_UMAX_IDENTITY, VectorMath::maxUnsigned, true);
}
public static void main(String[] args) {
TestFramework testFramework = new TestFramework();
testFramework.setDefaultWarmup(10000)
.addFlags("--add-modules=jdk.incubator.vector")
.start();
}
}