test/hotspot/jtreg/testlibrary/jittester/src/jdk/test/lib/jittester/factories/CounterManipulatorFactory.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.
 *
 * 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.
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package jdk.test.lib.jittester.factories;

import jdk.test.lib.jittester.IRNode;
import jdk.test.lib.jittester.LocalVariable;
import jdk.test.lib.jittester.OperatorKind;
import jdk.test.lib.jittester.ProductionFailedException;
import jdk.test.lib.jittester.Statement;
import jdk.test.lib.jittester.UnaryOperator;
import jdk.test.lib.jittester.loops.CounterManipulator;

class CounterManipulatorFactory extends Factory<CounterManipulator> {
    private final LocalVariable counter;

    CounterManipulatorFactory(LocalVariable counter) {
        this.counter = counter;
    }

    @Override
    public CounterManipulator produce() throws ProductionFailedException {
        // We'll keep it simple for the time being..
        IRNode manipulator = new UnaryOperator(OperatorKind.POST_DEC, counter);
        return new CounterManipulator(new Statement(manipulator, false));
    }
}