jdk-24/test/hotspot/jtreg/compiler/vectorization/TestSignumVector.java
Jatin Bhateja e4066628ad 8282711: Accelerate Math.signum function for AVX and AVX512 target.
Reviewed-by: sviswanathan, thartmann
2022-04-29 06:34:09 +00:00

94 lines
2.9 KiB
Java

/*
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/**
* @test
* @bug 8282711
* @summary Accelerate Math.signum function for AVX and AVX512.
* @requires vm.compiler2.enabled
* @requires vm.cpu.features ~= ".*avx.*"
* @requires os.simpleArch == "x64"
* @library /test/lib /
* @run driver compiler.vectorization.TestSignumVector
*/
package compiler.vectorization;
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:CompileThresholdScaling=0.3");
System.out.println("PASSED");
}
@Test
@IR(counts = {"SignumVD" , " > 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];
for(int i = 0 ; i < ARRLEN; i++) {
dinp[i] = (double)i*1.4;
}
for (int i = 0; i < ITERS; i++) {
test_signum_double(dout , dinp);
}
}
@Test
@IR(counts = {"SignumVF" , " > 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];
for(int i = 0 ; i < ARRLEN; i++) {
finp[i] = (float)i*1.4f;
}
for (int i = 0; i < ITERS; i++) {
test_signum_float(fout , finp);
}
}
}