/*

 * Copyright (c) 2016, 2019, 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 jdk.tools.jaotc;

import java.util.HashMap;

import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime;

/**

 * Constants used to mark special positions in code being installed into the code cache by Graal C++

 * code.

 */

enum MarkId {

    VERIFIED_ENTRY("CodeInstaller::VERIFIED_ENTRY"),

    UNVERIFIED_ENTRY("CodeInstaller::UNVERIFIED_ENTRY"),

    OSR_ENTRY("CodeInstaller::OSR_ENTRY"),

    EXCEPTION_HANDLER_ENTRY("CodeInstaller::EXCEPTION_HANDLER_ENTRY"),

    DEOPT_HANDLER_ENTRY("CodeInstaller::DEOPT_HANDLER_ENTRY"),

    INVOKEINTERFACE("CodeInstaller::INVOKEINTERFACE"),

    INVOKEVIRTUAL("CodeInstaller::INVOKEVIRTUAL"),

    INVOKESTATIC("CodeInstaller::INVOKESTATIC"),

    INVOKESPECIAL("CodeInstaller::INVOKESPECIAL"),

    INLINE_INVOKE("CodeInstaller::INLINE_INVOKE"),

    POLL_NEAR("CodeInstaller::POLL_NEAR"),

    POLL_RETURN_NEAR("CodeInstaller::POLL_RETURN_NEAR"),

    POLL_FAR("CodeInstaller::POLL_FAR"),

    POLL_RETURN_FAR("CodeInstaller::POLL_RETURN_FAR"),

    CARD_TABLE_ADDRESS("CodeInstaller::CARD_TABLE_ADDRESS"),

    HEAP_TOP_ADDRESS("CodeInstaller::HEAP_TOP_ADDRESS"),

    HEAP_END_ADDRESS("CodeInstaller::HEAP_END_ADDRESS"),

    NARROW_KLASS_BASE_ADDRESS("CodeInstaller::NARROW_KLASS_BASE_ADDRESS"),

    NARROW_OOP_BASE_ADDRESS("CodeInstaller::NARROW_OOP_BASE_ADDRESS"),

    CRC_TABLE_ADDRESS("CodeInstaller::CRC_TABLE_ADDRESS"),

    LOG_OF_HEAP_REGION_GRAIN_BYTES("CodeInstaller::LOG_OF_HEAP_REGION_GRAIN_BYTES"),

    INLINE_CONTIGUOUS_ALLOCATION_SUPPORTED("CodeInstaller::INLINE_CONTIGUOUS_ALLOCATION_SUPPORTED");

    private final int value;

    private static HashMap<Integer, MarkId> lookup = new HashMap<Integer, MarkId>();

    static {

        for (MarkId e : values()) {

            lookup.put(e.value, e);

        }

    }

    MarkId(String name) {

        this.value = (int) (long) HotSpotJVMCIRuntime.runtime().getConfigStore().getConstants().get(name);

    }

    static MarkId getEnum(int value) {

        MarkId e = lookup.get(value);

        if (e == null) {

            throw new InternalError("Unknown enum value: " + value);

        }

        return e;

    }

}