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/*
* Copyright (c) 2022, 2024, 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 8282711 8290249
* @summary Accelerate Math.signum function for AVX, AVX512, aarch64 (Neon and SVE)
* and riscv64 (vector)
* @requires vm.compiler2.enabled
* @requires (os.simpleArch == "x64" & vm.cpu.features ~= ".*avx.*") | os.arch == "aarch64" |
* (os.arch == "riscv64" & vm.cpu.features ~= ".*rvv.*")
* @library /test/lib /
* @run driver compiler.vectorization.TestSignumVector
*/
package compiler.vectorization;
import java.util.Random;
import compiler.lib.ir_framework.*;
public class TestSignumVector {
private static final int ARRLEN = 1024;
private static final int ITERS = 11000;
private static double [] dinp;
private static double [] dout;
private static float [] finp;
private static float [] fout;
public static void main(String args[]) {
TestFramework.runWithFlags("-XX:-TieredCompilation", "-XX:+UnlockDiagnosticVMOptions",
"-XX:+UseSignumIntrinsic", "-XX:CompileThresholdScaling=0.3");
System.out.println("PASSED");
}
@Test
@IR(counts = {IRNode.SIGNUM_VD, "> 0"})
public void test_signum_double(double[] dout, double[] dinp) {
for (int i = 0; i < dout.length; i+=1) {
dout[i] = Math.signum(dinp[i]);
}
}
@Run(test = {"test_signum_double"}, mode = RunMode.STANDALONE)
public void kernel_test_signum_double() {
dinp = new double[ARRLEN];
dout = new double[ARRLEN];
Random rnd = new Random(20);
for(int i = 0 ; i < ARRLEN; i++) {
dinp[i] = (i-ARRLEN/2)*rnd.nextDouble();
}
for (int i = 0; i < ITERS; i++) {
test_signum_double(dout , dinp);
}
for(int i = 0 ; i < ARRLEN; i++) {
if (i-ARRLEN/2<0) {
if (dout[i] != -1.0) throw new RuntimeException("Expected negative numbers in first half of array: " + java.util.Arrays.toString(dout));
} else if (i-ARRLEN/2==0) {
if (dout[i] != 0) throw new RuntimeException("Expected zero in the middle of array: " + java.util.Arrays.toString(dout));
} else {
if (dout[i] != 1.0) throw new RuntimeException("Expected positive numbers in second half of array: " + java.util.Arrays.toString(dout));
}
}
}
@Test
@IR(counts = {IRNode.SIGNUM_VF, "> 0"})
public void test_signum_float(float[] fout, float[] finp) {
for (int i = 0; i < finp.length; i+=1) {
fout[i] = Math.signum(finp[i]);
}
}
@Run(test = {"test_signum_float"}, mode = RunMode.STANDALONE)
public void kernel_test_round() {
finp = new float[ARRLEN];
fout = new float[ARRLEN];
Random rnd = new Random(20);
for(int i = 0 ; i < ARRLEN; i++) {
finp[i] = (i-ARRLEN/2)*rnd.nextFloat();
}
for (int i = 0; i < ITERS; i++) {
test_signum_float(fout , finp);
}
for(int i = 0 ; i < ARRLEN; i++) {
if (i-ARRLEN/2<0) {
if (fout[i] != -1.0) throw new RuntimeException("Expected negative numbers in first half of array: " + java.util.Arrays.toString(fout));
} else if (i-ARRLEN/2==0) {
if (fout[i] != 0) throw new RuntimeException("Expected zero in the middle of array: " + java.util.Arrays.toString(fout));
} else {
if (fout[i] != 1.0) throw new RuntimeException("Expected positive numbers in second half of array: " + java.util.Arrays.toString(fout));
}
}
}
}
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