Mercurial > hg > graal-jvmci-8
view jvmci/jdk.vm.ci.code/src/jdk/vm/ci/code/site/Mark.java @ 23396:9ed5b586018b
Replace LIRKind with abstract base class (JDK-8156942).
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Fri, 13 May 2016 14:33:19 +0200 |
parents | 1d4ce2d19e52 |
children |
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/* * Copyright (c) 2009, 2016, 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.vm.ci.code.site; import java.util.Objects; /** * Associates arbitrary information with a position in machine code. For example, HotSpot specific * code in a compiler backend may use this to denote the position of a safepoint, exception handler * entry point, verified entry point etc. */ public final class Mark extends Site { /** * An object denoting extra semantic information about the machine code position of this mark. */ public final Object id; /** * Creates a mark that associates {@code id} with the machine code position {@code pcOffset}. * * @param pcOffset * @param id */ public Mark(int pcOffset, Object id) { super(pcOffset); this.id = id; } @Override public String toString() { if (id == null) { return String.format("%d[<mark>]", pcOffset); } else if (id instanceof Integer) { return String.format("%d[<mark with id %s>]", pcOffset, Integer.toHexString((Integer) id)); } else { return String.format("%d[<mark with id %s>]", pcOffset, id.toString()); } } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (obj instanceof Mark) { Mark that = (Mark) obj; if (this.pcOffset == that.pcOffset && Objects.equals(this.id, that.id)) { return true; } } return false; } }