/*

 * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.

 * 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.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package org.graalvm.compiler.phases.common;

import org.graalvm.compiler.debug.DebugContext;

import org.graalvm.compiler.graph.Node;

import org.graalvm.compiler.nodes.StructuredGraph;

import org.graalvm.compiler.nodes.spi.CoreProviders;

import org.graalvm.compiler.options.Option;

import org.graalvm.compiler.options.OptionKey;

import org.graalvm.compiler.options.OptionType;

import org.graalvm.compiler.phases.BasePhase;

public class NodeCounterPhase extends BasePhase<CoreProviders> {

    private Stage stage;

    public NodeCounterPhase(Stage stage) {

        this.stage = stage;

    }

    public enum Stage {

        INIT,

        EARLY,

        LATE

    }

    public static class Options {

        // @formatter:off

        @Option(help = "Counts the number of instances of each node class.", type = OptionType.Debug)

        public static final OptionKey<Boolean> NodeCounters = new OptionKey<>(false);

        // @formatter:on

    }

    @Override

    protected void run(StructuredGraph graph, CoreProviders context) {

        for (Node node : graph.getNodes()) {

            String nodeName = node.getNodeClass().getClazz().getSimpleName();

            DebugContext.counter("NodeCounter_%s_%s", this.stage, nodeName).increment(node.getDebug());

        }

    }

}