TestManyMethodParameters.java

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/**
 * @test
 * @bug 8288781
 * @summary Test if a call with 8 integer + 13 float = 21 parameters can can be compiled.
 *          On ppc all parameters can be passed in registers.
 * @author Richard Reingruber
 *
 * @run main/othervm -Xbatch -XX:CompileCommand=dontinline,*::*dontinline* compiler.c1.TestManyMethodParameters
 */

package compiler.c1;

public class TestManyMethodParameters {
    public static void main(String[] args) {
        for (int i = 30_000; i >= 0; i--) {
            double sum = testMethod_01_dontinline();
            if (sum != 127) {
                throw new Error("Wrong sum: " + sum);
            }
        }
    }

    public static double testMethod_01_dontinline() {
        return testMethod_01_manyArgs(1, 2, 3, 4, 5, 6, 7, 8,
                                      1.0d, 2.0d, 3.0d, 4.0d, 5.0d, 6.0d, 7.0d, 8.0d, 9.0d, 10.0d, 11.0d, 12.0d, 13.0d);
    }

    public static double testMethod_01_manyArgs(long l1, long l2, long l3, long l4, long l5, long l6, long l7, long l8,
                                                double d1, double d2, double d3, double d4, double d5, double d6, double d7,
                                                double d8, double d9, double d10, double d11, double d12, double d13) {
        return l1+l2+l3+l4+l5+l6+l7+l8+d1+d2+d3+d4+d5+d6+d7+d8+d9+d10+d11+d12+d13;
    }
}