view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/BeginStateSplitNode.java @ 6534:feb579677b58

SnippetTemplate must not depend on CodeCacheProvider (only on MetaAccessProvider). This means that the hasSideEffect flag of a RuntimeCall must be already fixed in the RuntimeCall.Descriptor to avoid a lookup of the actual RuntimeCall using the CodeCacheProvider.
author Christian Wimmer <christian.wimmer@oracle.com>
date Mon, 08 Oct 2012 19:34:32 -0700
parents 2a0c9f20baa1
children 5e3d1a68664e
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/*
 * Copyright (c) 2012, 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;

/**
 * Base class for {@link BeginNode}s that are associated with a frame state.
 * TODO (dnsimon) this not needed until {@link BeginNode} no longer implements {@link StateSplit}
 * which is not possible until loop peeling works without requiring begin nodes to have frames states
 */
public abstract class BeginStateSplitNode extends BeginNode implements StateSplit {

    /**
     * A begin node has no side effect.
     */
    @Override
    public boolean hasSideEffect() {
        return false;
    }
}