jdk

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/*
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 * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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#include "precompiled.hpp"
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#include "gc/x/xAddress.hpp"
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#include "gc/x/xGlobals.hpp"
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void XAddress::set_good_mask(uintptr_t mask) {
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  XAddressGoodMask = mask;
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  XAddressBadMask = XAddressGoodMask ^ XAddressMetadataMask;
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  XAddressWeakBadMask = (XAddressGoodMask | XAddressMetadataRemapped | XAddressMetadataFinalizable) ^ XAddressMetadataMask;
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}
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void XAddress::initialize() {
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  XAddressOffsetBits = XPlatformAddressOffsetBits();
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  XAddressOffsetMask = (((uintptr_t)1 << XAddressOffsetBits) - 1) << XAddressOffsetShift;
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  XAddressOffsetMax = (uintptr_t)1 << XAddressOffsetBits;
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  XAddressMetadataShift = XPlatformAddressMetadataShift();
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  XAddressMetadataMask = (((uintptr_t)1 << XAddressMetadataBits) - 1) << XAddressMetadataShift;
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  XAddressMetadataMarked0 = (uintptr_t)1 << (XAddressMetadataShift + 0);
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  XAddressMetadataMarked1 = (uintptr_t)1 << (XAddressMetadataShift + 1);
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  XAddressMetadataRemapped = (uintptr_t)1 << (XAddressMetadataShift + 2);
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  XAddressMetadataFinalizable = (uintptr_t)1 << (XAddressMetadataShift + 3);
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  XAddressMetadataMarked = XAddressMetadataMarked0;
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  set_good_mask(XAddressMetadataRemapped);
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}
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void XAddress::flip_to_marked() {
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  XAddressMetadataMarked ^= (XAddressMetadataMarked0 | XAddressMetadataMarked1);
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  set_good_mask(XAddressMetadataMarked);
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}
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void XAddress::flip_to_remapped() {
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  set_good_mask(XAddressMetadataRemapped);
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}
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