| /* |
| * Copyright (c) 2014, 2015, 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.meta; |
| |
| import org.graalvm.compiler.api.replacements.SnippetReflectionProvider; |
| import org.graalvm.compiler.hotspot.HotSpotGraalRuntimeProvider; |
| import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; |
| import org.graalvm.compiler.word.WordTypes; |
| |
| import jdk.vm.ci.hotspot.HotSpotConstantReflectionProvider; |
| import jdk.vm.ci.hotspot.HotSpotObjectConstant; |
| import jdk.vm.ci.meta.JavaConstant; |
| import jdk.vm.ci.meta.JavaKind; |
| import jdk.vm.ci.meta.ResolvedJavaType; |
| |
| public class HotSpotSnippetReflectionProvider implements SnippetReflectionProvider { |
| |
| private final HotSpotGraalRuntimeProvider runtime; |
| private final HotSpotConstantReflectionProvider constantReflection; |
| private final WordTypes wordTypes; |
| |
| public HotSpotSnippetReflectionProvider(HotSpotGraalRuntimeProvider runtime, HotSpotConstantReflectionProvider constantReflection, WordTypes wordTypes) { |
| this.runtime = runtime; |
| this.constantReflection = constantReflection; |
| this.wordTypes = wordTypes; |
| } |
| |
| @Override |
| public JavaConstant forObject(Object object) { |
| return constantReflection.forObject(object); |
| } |
| |
| @Override |
| public Object asObject(ResolvedJavaType type, JavaConstant constant) { |
| if (constant.isNull()) { |
| return null; |
| } |
| HotSpotObjectConstant hsConstant = (HotSpotObjectConstant) constant; |
| return hsConstant.asObject(type); |
| } |
| |
| @Override |
| public <T> T asObject(Class<T> type, JavaConstant constant) { |
| if (constant.isNull()) { |
| return null; |
| } |
| HotSpotObjectConstant hsConstant = (HotSpotObjectConstant) constant; |
| return hsConstant.asObject(type); |
| } |
| |
| @Override |
| public JavaConstant forBoxed(JavaKind kind, Object value) { |
| if (kind == JavaKind.Object) { |
| return forObject(value); |
| } else { |
| return JavaConstant.forBoxedPrimitive(value); |
| } |
| } |
| |
| // Lazily initialized |
| private Class<?> wordTypesType; |
| private Class<?> runtimeType; |
| private Class<?> configType; |
| |
| @Override |
| public <T> T getInjectedNodeIntrinsicParameter(Class<T> type) { |
| // Need to test all fields since there no guarantee under the JMM |
| // about the order in which these fields are written. |
| GraalHotSpotVMConfig config = runtime.getVMConfig(); |
| if (configType == null || wordTypesType == null || configType == null) { |
| wordTypesType = wordTypes.getClass(); |
| runtimeType = runtime.getClass(); |
| configType = config.getClass(); |
| } |
| |
| if (type.isAssignableFrom(wordTypesType)) { |
| return type.cast(wordTypes); |
| } |
| if (type.isAssignableFrom(runtimeType)) { |
| return type.cast(runtime); |
| } |
| if (type.isAssignableFrom(configType)) { |
| return type.cast(config); |
| } |
| return null; |
| } |
| } |