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/*
* Copyright (c) 2020, 2021, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2020, BELLSOFT. 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
* @summary Test compiler intrinsics for signum
* @library /test/lib
*
* @run main/othervm
* -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions
* -XX:+UseSignumIntrinsic
* compiler.intrinsics.math.TestSignumIntrinsic
* @run main/othervm
* -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions
* -XX:-UseSignumIntrinsic -XX:+UseCopySignIntrinsic
* compiler.intrinsics.math.TestSignumIntrinsic
*/
package compiler.intrinsics.math;
import jdk.test.lib.Asserts;
public class TestSignumIntrinsic {
private static final float[][] float_cases = {
{123.4f, 1.0f},
{-56.7f, -1.0f},
{7e30f, 1.0f},
{-0.3e30f, -1.0f},
{Float.MAX_VALUE, 1.0f},
{-Float.MAX_VALUE, -1.0f},
{Float.MIN_VALUE, 1.0f},
{-Float.MIN_VALUE, -1.0f},
{0.0f, 0.0f},
{-0.0f, -0.0f},
{Float.POSITIVE_INFINITY, 1.0f},
{Float.NEGATIVE_INFINITY, -1.0f},
{Float.NaN, Float.NaN},
{Float.MIN_NORMAL, 1.0f},
{-Float.MIN_NORMAL, -1.0f},
{0x0.0002P-126f, 1.0f},
{-0x0.0002P-126f, -1.0f}
};
private static final double[][] double_cases = {
{123.4d, 1.0d},
{-56.7d, -1.0d},
{7e30d, 1.0d},
{-0.3e30d, -1.0d},
{Double.MAX_VALUE, 1.0d},
{-Double.MAX_VALUE, -1.0d},
{Double.MIN_VALUE, 1.0d},
{-Double.MIN_VALUE, -1.0d},
{0.0d, 0.0d},
{-0.0d, -0.0d},
{Double.POSITIVE_INFINITY, 1.0d},
{Double.NEGATIVE_INFINITY, -1.0d},
{Double.NaN, Double.NaN},
{Double.MIN_NORMAL, 1.0d},
{-Double.MIN_NORMAL, -1.0d},
{0x0.00000001P-1022, 1.0d},
{-0x0.00000001P-1022, -1.0d}
};
public static void main(String[] args) throws Exception {
float fAccum = 0.0f;
double dAccum = 0.0d;
for (int i = 0; i < 100_000; i++) {
fAccum += floatTest();
dAccum += doubleTest();
}
System.out.println("SUCCESS. Accum values: " + fAccum + " and " + dAccum);
}
private static float floatTest() {
float accum = 0.0f;
for (float[] fcase : float_cases) {
float arg = fcase[0];
float expected = fcase[1];
float calculated = Math.signum(arg);
Asserts.assertEQ(expected, calculated, "Unexpected float result from " + arg);
accum += calculated;
}
return accum;
}
private static double doubleTest() {
double accum = 0.0d;
for (double[] dcase : double_cases) {
double arg = dcase[0];
double expected = dcase[1];
double calculated = Math.signum(arg);
Asserts.assertEQ(expected, calculated, "Unexpected double result from " + arg);
accum += calculated;
}
return accum;
}
}
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