Phase.java

/*
 * Copyright (c) 2009, 2015, 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
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 * questions.
 *
 */

package com.sun.hotspot.tools.compiler;

import java.io.PrintStream;

/**
 * Representation of a compilation phase as a log event.
 */
public class Phase extends BasicLogEvent {

    /**
     * The number of nodes in the compilation at the beginning of this phase.
     */
    private final int startNodes;

    /**
     * The number of nodes in the compilation at the end of this phase.
     */
    private int endNodes;

    /**
     * The number of live nodes in the compilation at the beginning of this
     * phase.
     */
    private final int startLiveNodes;

    /**
     * The number of live nodes in the compilation at the end of this phase.
     */
    private int endLiveNodes;

    Phase(String n, double s, int nodes, int live) {
        super(s, n);
        startNodes = nodes;
        startLiveNodes = live;
    }

    int getNodes() {
        return getEndNodes() - getStartNodes();
    }

    void setEndNodes(int n) {
        endNodes = n;
    }

    public String getName() {
        return getId();
    }

    public int getStartNodes() {
        return startNodes;
    }

    public int getEndNodes() {
        return endNodes;
    }

    /**
     * The number of live nodes added by this phase.
     */
    int getAddedLiveNodes() {
        return getEndLiveNodes() - getStartLiveNodes();
    }

    void setEndLiveNodes(int n) {
        endLiveNodes = n;
    }

    public int getStartLiveNodes() {
        return startLiveNodes;
    }

    public int getEndLiveNodes() {
        return endLiveNodes;
    }

    @Override
    public void print(PrintStream stream, boolean printID) {
        throw new UnsupportedOperationException("Not supported yet.");
    }
}