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/*
* Copyright (c) 2023, 2025, 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.
*/
/**
* @test
* @bug 8302673
* @summary [SuperWord] MaxReduction and MinReduction should vectorize for int
* @library /test/lib /
* @run driver compiler.loopopts.superword.MinMaxRed_Int
*/
package compiler.loopopts.superword;
import compiler.lib.ir_framework.*;
import java.util.Arrays;
import java.util.Random;
import jdk.test.lib.Utils;
public class MinMaxRed_Int {
private static final Random random = Utils.getRandomInstance();
public static void main(String[] args) throws Exception {
TestFramework framework = new TestFramework();
framework.addFlags("-XX:+IgnoreUnrecognizedVMOptions",
"-XX:LoopUnrollLimit=250",
"-XX:CompileThresholdScaling=0.1");
framework.start();
}
@Run(test = {"maxReductionImplement"},
mode = RunMode.STANDALONE)
public void runMaxTest() {
int[] a = new int[1024];
int[] b = new int[1024];
ReductionInit(a, b);
int res = 0;
for (int j = 0; j < 2000; j++) {
res = maxReductionImplement(a, b, res);
}
if (res == Arrays.stream(a).max().getAsInt()) {
System.out.println("Success");
} else {
throw new AssertionError("Failed");
}
}
@Run(test = {"minReductionImplement"},
mode = RunMode.STANDALONE)
public void runMinTest() {
int[] a = new int[1024];
int[] b = new int[1024];
ReductionInit(a, b);
int res = 1;
for (int j = 0; j < 2000; j++) {
res = minReductionImplement(a, b, res);
}
if (res == Arrays.stream(a).min().getAsInt()) {
System.out.println("Success");
} else {
throw new AssertionError("Failed");
}
}
public static void ReductionInit(int[] a, int[] b) {
for (int i = 0; i < a.length; i++) {
a[i] = random.nextInt();
b[i] = 1;
}
}
@Test
@IR(applyIf = {"SuperWordReductions", "true"},
applyIfCPUFeatureOr = { "sse4.1", "true" , "asimd" , "true"},
counts = {IRNode.MIN_REDUCTION_V, " > 0"})
@IR(applyIfPlatform = {"riscv64", "true"},
applyIfCPUFeature = {"rvv", "true"},
counts = {IRNode.MIN_REDUCTION_V, " > 0"})
@IR(applyIfPlatform = {"ppc", "true"},
applyIf = {"SuperwordUseVSX", "true"},
counts = {IRNode.MIN_REDUCTION_V, " > 0"})
public static int minReductionImplement(int[] a, int[] b, int res) {
for (int i = 0; i < a.length; i++) {
res = Math.min(res, a[i] * b[i]);
}
return res;
}
@Test
@IR(applyIf = {"SuperWordReductions", "true"},
applyIfCPUFeatureOr = { "sse4.1", "true" , "asimd" , "true"},
counts = {IRNode.MAX_REDUCTION_V, " > 0"})
@IR(applyIfPlatform = {"riscv64", "true"},
applyIfCPUFeature = {"rvv", "true"},
counts = {IRNode.MAX_REDUCTION_V, " > 0"})
@IR(applyIfPlatform = {"ppc", "true"},
applyIf = {"SuperwordUseVSX", "true"},
counts = {IRNode.MAX_REDUCTION_V, " > 0"})
public static int maxReductionImplement(int[] a, int[] b, int res) {
for (int i = 0; i < a.length; i++) {
res = Math.max(res, a[i] * b[i]);
}
return res;
}
}
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