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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package org.graalvm.compiler.hotspot.meta;

import jdk.vm.ci.code.Register;

Special registers reserved by HotSpot for frequently used values.
/**
 * Special registers reserved by HotSpot for frequently used values.
 */
public interface HotSpotRegistersProvider {

    
Gets the register holding the current thread.
/**
     * Gets the register holding the current thread.
     */
    Register getThreadRegister();

    
Gets the register holding the heap base address for compressed pointers.
/**
     * Gets the register holding the heap base address for compressed pointers.
     */
    Register getHeapBaseRegister();

    
Gets the stack pointer register.
/**
     * Gets the stack pointer register.
     */
    Register getStackPointerRegister();
}