| /* |
| * Copyright (c) 2017, 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.bytecode.Bytecodes; |
| import org.graalvm.compiler.core.common.type.Stamp; |
| import org.graalvm.compiler.debug.GraalError; |
| import org.graalvm.compiler.hotspot.nodes.aot.ResolveDynamicConstantNode; |
| import org.graalvm.compiler.nodes.ConstantNode; |
| import org.graalvm.compiler.nodes.FrameState; |
| import org.graalvm.compiler.nodes.NodeView; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.graphbuilderconf.InvokeDynamicPlugin; |
| import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext; |
| |
| import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; |
| import jdk.vm.ci.hotspot.HotSpotResolvedObjectType; |
| import jdk.vm.ci.meta.ConstantPool; |
| import jdk.vm.ci.meta.JavaConstant; |
| import jdk.vm.ci.meta.ResolvedJavaMethod; |
| |
| import java.lang.invoke.MethodHandle; |
| import java.lang.invoke.MethodHandles; |
| import java.lang.invoke.MethodType; |
| |
| public class HotSpotInvokeDynamicPlugin implements InvokeDynamicPlugin { |
| |
| private static final Class<? extends ConstantPool> hscp; |
| private static final MethodHandle isResolvedDynamicInvokeMH; |
| |
| static { |
| MethodHandle m = null; |
| Class<? extends ConstantPool> c = null; |
| try { |
| c = Class.forName("jdk.vm.ci.hotspot.HotSpotConstantPool").asSubclass(ConstantPool.class); |
| m = MethodHandles.lookup().findVirtual(c, "isResolvedDynamicInvoke", MethodType.methodType(boolean.class, int.class, int.class)); |
| } catch (Exception e) { |
| } |
| isResolvedDynamicInvokeMH = m; |
| hscp = c; |
| } |
| |
| private static boolean isResolvedDynamicInvoke(ConstantPool constantPool, int index, int opcode) { |
| if (isResolvedDynamicInvokeMH != null) { |
| if (!hscp.isInstance(constantPool)) { |
| return false; |
| } |
| try { |
| return (boolean) isResolvedDynamicInvokeMH.invoke(constantPool, index, opcode); |
| } catch (Throwable t) { |
| throw GraalError.shouldNotReachHere(t); |
| } |
| } |
| throw GraalError.shouldNotReachHere("isResolvedDynamicInvokeMH not set"); |
| } |
| |
| private final DynamicTypeStore dynoStore; |
| private final boolean treatAppendixAsConstant; |
| |
| public HotSpotInvokeDynamicPlugin(DynamicTypeStore dynoStore, boolean treatAppendixAsConstant) { |
| this.dynoStore = dynoStore; |
| this.treatAppendixAsConstant = treatAppendixAsConstant; |
| } |
| |
| public HotSpotInvokeDynamicPlugin(DynamicTypeStore dynoStore) { |
| this(dynoStore, true); |
| } |
| |
| public HotSpotInvokeDynamicPlugin() { |
| this(null); |
| } |
| |
| // invokehandle support |
| @Override |
| public boolean isResolvedDynamicInvoke(GraphBuilderContext builder, int index, int opcode) { |
| ConstantPool constantPool = builder.getCode().getConstantPool(); |
| if (isResolvedDynamicInvokeMH == null) { |
| // If older JVMCI, but HotSpotInvokeDynamicPlugin is being |
| // used for testing, return true so that we continue along the |
| // plugin path. |
| return true; |
| } |
| return isResolvedDynamicInvoke(constantPool, index, opcode); |
| } |
| |
| @Override |
| public boolean supportsDynamicInvoke(GraphBuilderContext builder, int index, int opcode) { |
| return opcode == Bytecodes.INVOKEDYNAMIC || isResolvedDynamicInvokeMH != null; |
| } |
| |
| public DynamicTypeStore getDynamicTypeStore() { |
| return dynoStore; |
| } |
| |
| @Override |
| public void recordDynamicMethod(GraphBuilderContext builder, int index, int opcode, ResolvedJavaMethod target) { |
| assert supportsDynamicInvoke(builder, index, opcode); |
| HotSpotResolvedJavaMethod method = (HotSpotResolvedJavaMethod) builder.getMethod(); |
| HotSpotResolvedObjectType methodHolder = method.getDeclaringClass(); |
| |
| HotSpotResolvedJavaMethod adapter = (HotSpotResolvedJavaMethod) target; |
| if (dynoStore != null) { |
| dynoStore.recordAdapter(opcode, methodHolder, index, adapter); |
| } |
| } |
| |
| @Override |
| public ValueNode genAppendixNode(GraphBuilderContext builder, int index, int opcode, JavaConstant appendixConstant, FrameState frameState) { |
| JavaConstant appendix = appendixConstant; |
| assert supportsDynamicInvoke(builder, index, opcode); |
| HotSpotResolvedJavaMethod method = (HotSpotResolvedJavaMethod) builder.getMethod(); |
| HotSpotResolvedObjectType methodHolder = method.getDeclaringClass(); |
| |
| if (dynoStore != null) { |
| appendix = dynoStore.recordAppendix(opcode, methodHolder, index, appendix); |
| } |
| |
| ConstantNode appendixNode = ConstantNode.forConstant(appendix, builder.getMetaAccess(), builder.getGraph()); |
| |
| Stamp appendixStamp = appendixNode.stamp(NodeView.DEFAULT); |
| Stamp resolveStamp = treatAppendixAsConstant ? appendixStamp : appendixStamp.unrestricted(); |
| ResolveDynamicConstantNode resolveNode = new ResolveDynamicConstantNode(resolveStamp, appendixNode); |
| ResolveDynamicConstantNode added = builder.append(resolveNode); |
| assert added == resolveNode; |
| added.setStateBefore(frameState); |
| return resolveNode; |
| } |
| |
| public interface DynamicTypeStore { |
| |
| void recordAdapter(int opcode, HotSpotResolvedObjectType holder, int cpi, HotSpotResolvedJavaMethod adapter); |
| |
| JavaConstant recordAppendix(int opcode, HotSpotResolvedObjectType holder, int cpi, JavaConstant appendix); |
| |
| } |
| |
| } |