view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/HIRLoop.java @ 19205:f129bb0f4d0f

Make RedundantMoveElimination a LowLevelLowTierPhase.
author Josef Eisl <josef.eisl@jku.at>
date Fri, 06 Feb 2015 17:16:35 +0100
parents 4bd6ad45ee0a
children 6b73ce815fc2
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/*
 * Copyright (c) 2014, 2014, 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.oracle.graal.nodes.cfg;

import com.oracle.graal.compiler.common.cfg.*;
import com.oracle.graal.nodes.*;

public class HIRLoop extends Loop<Block> {

    protected HIRLoop(Loop<Block> parent, int index, Block header) {
        super(parent, index, header);
    }

    @Override
    public long numBackedges() {
        return ((LoopBeginNode) getHeader().getBeginNode()).loopEnds().count();
    }
}