| /* |
| * Copyright (c) 2012, 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 org.graalvm.compiler.hotspot.word; |
| |
| import org.graalvm.compiler.core.common.type.Stamp; |
| import org.graalvm.compiler.hotspot.nodes.type.KlassPointerStamp; |
| import org.graalvm.compiler.hotspot.nodes.type.MethodCountersPointerStamp; |
| import org.graalvm.compiler.hotspot.nodes.type.MethodPointerStamp; |
| import org.graalvm.compiler.word.WordTypes; |
| |
| import jdk.vm.ci.meta.JavaKind; |
| import jdk.vm.ci.meta.JavaType; |
| import jdk.vm.ci.meta.MetaAccessProvider; |
| import jdk.vm.ci.meta.ResolvedJavaType; |
| |
| /** |
| * Extends {@link WordTypes} with information about HotSpot metaspace pointer types. |
| */ |
| public class HotSpotWordTypes extends WordTypes { |
| |
| /** |
| * Resolved type for {@link MetaspacePointer}. |
| */ |
| private final ResolvedJavaType metaspacePointerType; |
| |
| /** |
| * Resolved type for {@link KlassPointer}. |
| */ |
| private final ResolvedJavaType klassPointerType; |
| |
| /** |
| * Resolved type for {@link MethodPointer}. |
| */ |
| private final ResolvedJavaType methodPointerType; |
| |
| /** |
| * Resolved type for {@link MethodCountersPointer}. |
| */ |
| private final ResolvedJavaType methodCountersPointerType; |
| |
| public HotSpotWordTypes(MetaAccessProvider metaAccess, JavaKind wordKind) { |
| super(metaAccess, wordKind); |
| this.metaspacePointerType = metaAccess.lookupJavaType(MetaspacePointer.class); |
| this.klassPointerType = metaAccess.lookupJavaType(KlassPointer.class); |
| this.methodPointerType = metaAccess.lookupJavaType(MethodPointer.class); |
| this.methodCountersPointerType = metaAccess.lookupJavaType(MethodCountersPointer.class); |
| } |
| |
| @Override |
| public boolean isWord(JavaType type) { |
| if (type instanceof ResolvedJavaType && metaspacePointerType.isAssignableFrom((ResolvedJavaType) type)) { |
| return true; |
| } |
| return super.isWord(type); |
| } |
| |
| @Override |
| public JavaKind asKind(JavaType type) { |
| if (klassPointerType.equals(type) || methodPointerType.equals(type)) { |
| return getWordKind(); |
| } |
| return super.asKind(type); |
| } |
| |
| @Override |
| public Stamp getWordStamp(ResolvedJavaType type) { |
| if (type.equals(klassPointerType)) { |
| return KlassPointerStamp.klass(); |
| } else if (type.equals(methodPointerType)) { |
| return MethodPointerStamp.method(); |
| } else if (type.equals(methodCountersPointerType)) { |
| return MethodCountersPointerStamp.methodCounters(); |
| } |
| return super.getWordStamp(type); |
| } |
| } |