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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 *

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 * version 2 for more details (a copy is included in the LICENSE file that

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/**

 * @test

 * @bug 8210387

 * @summary Test removal of unreachable regions during CCP.

 * @library /test/lib

 * @run main/othervm -Xcomp -XX:-TieredCompilation

 *                   -XX:CompileOnly=compiler.c2.TestUnreachableRegionDuringCCP::test

 *                   compiler.c2.TestUnreachableRegionDuringCCP

 */

package compiler.c2;

import jdk.test.lib.Asserts;

public class TestUnreachableRegionDuringCCP {

    static int iFld1 = -1;

    static int iFld2 = -1;

    static int iArrFld[] = new int[100];

    public static void test() {

        int i = 1;

        do {

            iArrFld[i] = iFld1;

            iFld1 = 42;

            for (int j = 1; j < 5; j++) {

                if (i != 0) {

                    return; // Always returns

                }

                iFld2 += j;

            }

        } while (++i < 10);

    }

    public static void main(String[] args) {

        test();

        Asserts.assertEQ(iFld1, 42);

        Asserts.assertEQ(iFld2, -1);

        Asserts.assertEQ(iArrFld[1], -1);

    }

}