view visualizer/Filter/src/com/sun/hotspot/igv/filter/CombineFilter.java @ 13268:68b964b6dc8e

introduced BlockEndOp interface and require that every LIR block is terminated by such an operation LIR BranchOps now control whether or not additional unconditional jump is emitted (obviating the need for the ControlFlowOptimizer to eliminate such jumps)
author Doug Simon <doug.simon@oracle.com>
date Mon, 09 Dec 2013 15:24:27 +0100
parents 015fb895586b
children
line wrap: on
line source

/*
 * Copyright (c) 2008, 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 com.sun.hotspot.igv.filter;

import com.sun.hotspot.igv.data.Properties;
import com.sun.hotspot.igv.data.Properties.PropertyMatcher;
import com.sun.hotspot.igv.graph.*;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

/**
 *
 * @author Thomas Wuerthinger
 */
public class CombineFilter extends AbstractFilter {

    private List<CombineRule> rules;
    private String name;

    public CombineFilter(String name) {
        this.name = name;
        rules = new ArrayList<>();
    }

    @Override
    public String getName() {
        return name;
    }

    @Override
    public void apply(Diagram diagram) {

        Properties.PropertySelector<Figure> selector = new Properties.PropertySelector<>(diagram.getFigures());
        for (CombineRule r : rules) {

            List<Figure> list = selector.selectMultiple(r.getFirstMatcher());
            Set<Figure> figuresToRemove = new HashSet<>();
            for (Figure f : list) {

                List<Figure> successors = new ArrayList<>(f.getSuccessors());
                if (r.isReversed()) {
                    if (successors.size() == 1) {
                        Figure succ = successors.get(0);
                        InputSlot slot = null;

                        for (InputSlot s : succ.getInputSlots()) {
                            for (Connection c : s.getConnections()) {
                                if (c.getOutputSlot().getFigure() == f) {
                                    slot = s;
                                }
                            }
                        }

                        slot.getSource().addSourceNodes(f.getSource());
                        if (r.getShortProperty() != null) {
                            String s = f.getProperties().get(r.getShortProperty());
                            if (s != null && s.length() > 0) {
                                slot.setShortName(s);
                                slot.setText(s);
                                slot.setColor(f.getColor());
                            }
                        } else {
                            assert slot != null;
                            slot.setText(f.getProperties().get("dump_spec"));
                            if (f.getProperties().get("short_name") != null) {
                                slot.setShortName(f.getProperties().get("short_name"));
                            } else {
                                String s = f.getProperties().get("dump_spec");
                                if (s != null && s.length() <= 5) {
                                    slot.setShortName(s);
                                }
                            }
                        }

                        for (InputSlot s : f.getInputSlots()) {
                            for (Connection c : s.getConnections()) {
                                Connection newConn = diagram.createConnection(slot, c.getOutputSlot(), c.getLabel());
                                newConn.setColor(c.getColor());
                                newConn.setStyle(c.getStyle());
                            }
                        }

                        figuresToRemove.add(f);
                    }
                } else {

                    for (Figure succ : successors) {
                        if (succ.getPredecessors().size() == 1 && succ.getInputSlots().size() == 1) {
                            if (succ.getProperties().selectSingle(r.getSecondMatcher()) != null && succ.getOutputSlots().size() == 1) {


                                OutputSlot oldSlot = null;
                                for (OutputSlot s : f.getOutputSlots()) {
                                    for (Connection c : s.getConnections()) {
                                        if (c.getInputSlot().getFigure() == succ) {
                                            oldSlot = s;
                                        }
                                    }
                                }

                                assert oldSlot != null;

                                OutputSlot nextSlot = succ.getOutputSlots().get(0);
                                int pos = 0;
                                if (succ.getProperties().get("con") != null) {
                                    pos = Integer.parseInt(succ.getProperties().get("con"));
                                }
                                OutputSlot slot = f.createOutputSlot(pos);
                                slot.getSource().addSourceNodes(succ.getSource());
                                if (r.getShortProperty() != null) {
                                    String s = succ.getProperties().get(r.getShortProperty());
                                    if (s != null && s.length() > 0) {
                                        slot.setShortName(s);
                                        slot.setText(s);
                                        slot.setColor(succ.getColor());
                                    }
                                } else {
                                    slot.setText(succ.getProperties().get("dump_spec"));
                                    if (succ.getProperties().get("short_name") != null) {
                                        slot.setShortName(succ.getProperties().get("short_name"));
                                    } else {
                                        String s = succ.getProperties().get("dump_spec");
                                        if (s != null && s.length() <= 2) {
                                            slot.setShortName(s);
                                        } else {
                                            String tmpName = succ.getProperties().get("name");
                                            if (tmpName != null && tmpName.length() > 0) {
                                                slot.setShortName(tmpName.substring(0, 1));
                                            }
                                        }
                                    }
                                }
                                for (Connection c : nextSlot.getConnections()) {
                                    Connection newConn = diagram.createConnection(c.getInputSlot(), slot, c.getLabel());
                                    newConn.setColor(c.getColor());
                                    newConn.setStyle(c.getStyle());
                                }


                                figuresToRemove.add(succ);

                                if (oldSlot.getConnections().size() == 0) {
                                    f.removeSlot(oldSlot);
                                }
                            }
                        }
                    }
                }
            }

            diagram.removeAllFigures(figuresToRemove);
        }
    }

    public void addRule(CombineRule combineRule) {
        rules.add(combineRule);
    }

    public static class CombineRule {

        private PropertyMatcher first;
        private PropertyMatcher second;
        private boolean reversed;
        private String shortProperty;

        public CombineRule(PropertyMatcher first, PropertyMatcher second) {
            this(first, second, false);

        }

        public CombineRule(PropertyMatcher first, PropertyMatcher second, boolean reversed) {
            this(first, second, reversed, null);
        }

        public CombineRule(PropertyMatcher first, PropertyMatcher second, boolean reversed, String shortProperty) {
            this.first = first;
            this.second = second;
            this.reversed = reversed;
            this.shortProperty = shortProperty;
        }

        public boolean isReversed() {
            return reversed;
        }

        public PropertyMatcher getFirstMatcher() {
            return first;
        }

        public PropertyMatcher getSecondMatcher() {
            return second;
        }

        public String getShortProperty() {
            return shortProperty;
        }
    }
}