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/*
* Copyright (c) 2022, 2025, Arm Limited. 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.c2.irTests;
import compiler.lib.ir_framework.*;
import java.util.Random;
import jdk.test.lib.Utils;
/*
* @test
* @bug 8288107
* @summary Auto-vectorization enhancement for integer Math.max/Math.min operations
* @library /test/lib /
* @requires vm.compiler2.enabled
* @requires (os.simpleArch == "x64" & (vm.opt.UseSSE == "null" | vm.opt.UseSSE > 3)) |
* os.arch == "aarch64" |
* (os.simpleArch == "riscv64" & vm.cpu.features ~= ".*rvv.*")
* @run driver compiler.c2.irTests.TestAutoVecIntMinMax
*/
public class TestAutoVecIntMinMax {
private final static int LENGTH = 2000;
private final static Random RANDOM = Utils.getRandomInstance();
private static int[] a;
private static int[] b;
private static int[] c;
static {
a = new int[LENGTH];
b = new int[LENGTH];
c = new int[LENGTH];
for(int i = 0; i < LENGTH; i++) {
a[i] = RANDOM.nextInt();
b[i] = RANDOM.nextInt();
}
}
public static void main(String[] args) {
TestFramework.run();
}
// Test for auto-vectorization of Math.min operation on an array of integers
@Test
@IR(counts = {IRNode.LOAD_VECTOR_I, " >0 "})
@IR(counts = {IRNode.MIN_VI, " >0 "})
@IR(counts = {IRNode.STORE_VECTOR, " >0 "})
private static void testIntMin(int[] a, int[] b) {
for(int i = 0; i < LENGTH; i++) {
c[i] = Math.min(a[i], b[i]);
}
}
// Test for auto-vectorization of StrictMath.min operation on an array of integers
@Test
@IR(counts = {IRNode.LOAD_VECTOR_I, " >0 "})
@IR(counts = {IRNode.MIN_VI, " >0 "})
@IR(counts = {IRNode.STORE_VECTOR, " >0 "})
private static void testIntStrictMin(int[] a, int[] b) {
for(int i = 0; i < LENGTH; i++) {
c[i] = StrictMath.min(a[i], b[i]);
}
}
// Test for auto-vectorization of Math.max operation on an array of integers
@Test
@IR(counts = {IRNode.LOAD_VECTOR_I, " >0 "})
@IR(counts = {IRNode.MAX_VI, " >0 "})
@IR(counts = {IRNode.STORE_VECTOR, " >0 "})
private static void testIntMax(int[] a, int[] b) {
for(int i = 0; i < LENGTH; i++) {
c[i] = Math.max(a[i], b[i]);
}
}
// Test for auto-vectorization of StrictMath.max operation on an array of integers
@Test
@IR(counts = {IRNode.LOAD_VECTOR_I, " >0 "})
@IR(counts = {IRNode.MAX_VI, " >0 "})
@IR(counts = {IRNode.STORE_VECTOR, " >0 "})
private static void testIntStrictMax(int[] a, int[] b) {
for(int i = 0; i < LENGTH; i++) {
c[i] = StrictMath.max(a[i], b[i]);
}
}
@Run(test = {"testIntMin", "testIntStrictMin", "testIntMax", "testIntStrictMax"})
private void testIntMinMax_runner() {
testIntMin(a, b);
testIntStrictMin(a, b);
testIntMax(a, b);
testIntStrictMax(a, b);
}
}
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