src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.jdk9.test/src/org/graalvm/compiler/hotspot/jdk9/test/MathFloatFMATest.java

/*
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 * 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.
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 * 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).
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 * 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.
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package org.graalvm.compiler.hotspot.jdk9.test;

import static org.junit.Assume.assumeTrue;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.graalvm.compiler.api.test.Graal;
import org.graalvm.compiler.core.test.GraalCompilerTest;
import org.graalvm.compiler.hotspot.HotSpotGraalRuntimeProvider;
import org.graalvm.compiler.runtime.RuntimeProvider;
import org.graalvm.compiler.test.AddExports;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameter;
import org.junit.runners.Parameterized.Parameters;

import jdk.vm.ci.amd64.AMD64;

@AddExports({"java.base/java.lang"})
@RunWith(Parameterized.class)
public final class MathFloatFMATest extends GraalCompilerTest {

    @Before
    public void checkAMD64() {
        assumeTrue("skipping AMD64 specific test", getTarget().arch instanceof AMD64);
        HotSpotGraalRuntimeProvider rt = (HotSpotGraalRuntimeProvider) Graal.getRequiredCapability(RuntimeProvider.class);
        assumeTrue("skipping FMA specific tests", rt.getVMConfig().useFMAIntrinsics);
    }

    @Parameters(name = "{0}, {1}, {2}")
    public static Collection<Object[]> data() {
        float[] inputs = {0.0f, 1.0f, 4.0f, -0.0f, -1.0f, 4.0f, Float.MIN_VALUE, Float.MAX_VALUE, Float.NEGATIVE_INFINITY, Float.POSITIVE_INFINITY,
                        Float.NaN, Float.intBitsToFloat(0xff800001)};

        List<Object[]> tests = new ArrayList<>();
        for (float a : inputs) {
            for (float b : inputs) {
                for (float c : inputs) {
                    tests.add(new Object[]{a, b, c});
                }
            }
        }
        return tests;
    }

    @Parameter(value = 0) public float input0;
    @Parameter(value = 1) public float input1;
    @Parameter(value = 2) public float input2;

    public static float fma(float a, float b, float c) {
        return Math.fma(a, b, c);
    }

    @Test
    public void testFMA() {
        test("fma", input0, input1, input2);
    }

}