/*
 * 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.hotspot.nodes.type;

import com.oracle.graal.api.meta.*;
import com.oracle.graal.compiler.common.*;
import com.oracle.graal.lir.gen.*;

public class HotSpotLIRKindTool extends DefaultLIRKindTool {

    private final Kind pointerKind;

    public HotSpotLIRKindTool(Kind pointerKind) {
        this.pointerKind = pointerKind;
    }

    public LIRKind getPointerKind(PointerType type) {
        /*
         * In the Hotspot VM, object pointers are tracked heap references. All other pointers
         * (method and klass pointers) are untracked pointers to the metaspace.
         */
        switch (type) {
            case Object:
                return LIRKind.reference(Kind.Object);
            case Type:
            case Method:
                return LIRKind.value(pointerKind);
            default:
                throw GraalInternalError.shouldNotReachHere();
        }
    }
}