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package compiler.escapeAnalysis;

import java.util.Objects;

/*
 * @test
 * @bug 8374435
 * @summary assert during escape analysis when splitting a Load through a Phi because the input of
 *          the result Phi is a Load not from an AddP
 * @run main/othervm -XX:-UseOnStackReplacement -XX:-UseCompressedOops ${test.main.class}
 */
public class TestSplitLoadThroughPhiDuringEA {
    static class Holder {
        Object o;
    }

    public static void main(String[] args) {
        Object o = new Object();
        Holder h = new Holder();
        for (int i = 0; i < 20000; i++) {
            test(true, h, o);
            test(false, h, o);
        }
    }

    private static Object test(boolean b, Holder h, Object o) {
        h = Objects.requireNonNull(h);
        if (b) {
            h = new Holder();
            // This access has the pattern LoadP -> LoadP, which upsets the compiler because the
            // pointer input of a LoadP is not an AddP
            h.o = o.getClass();
        }
        return h.o;
    }
}