view graal/com.oracle.graal.loop/src/com/oracle/graal/loop/LoopPolicies.java @ 23274:50079bd51344

Convert deoptimize to guard also when deoptimize is behind (possibly nested) loop exit
author Christian Wimmer <christian.wimmer@oracle.com>
date Fri, 08 Jan 2016 13:10:52 -0800
parents dd3f7ad81b73
children
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/*
 * Copyright (c) 2015, 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
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.oracle.graal.loop;

import java.util.List;

import com.oracle.graal.nodes.ControlSplitNode;
import com.oracle.graal.nodes.cfg.ControlFlowGraph;

public interface LoopPolicies {
    boolean shouldPeel(LoopEx loop, ControlFlowGraph cfg);

    boolean shouldFullUnroll(LoopEx loop);

    boolean shouldTryUnswitch(LoopEx loop);

    boolean shouldUnswitch(LoopEx loop, List<ControlSplitNode> controlSplits);
}