| /* |
| * Copyright (c) 2015, 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.replacements.arraycopy; |
| |
| import jdk.vm.ci.code.BytecodeFrame; |
| import jdk.vm.ci.meta.JavaKind; |
| |
| import static org.graalvm.compiler.core.common.LocationIdentity.any; |
| |
| import org.graalvm.compiler.core.common.LocationIdentity; |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.hotspot.word.KlassPointer; |
| import org.graalvm.compiler.nodeinfo.InputType; |
| import org.graalvm.compiler.nodeinfo.NodeInfo; |
| import org.graalvm.compiler.nodes.NamedLocationIdentity; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.type.StampTool; |
| import org.graalvm.compiler.replacements.SnippetTemplate; |
| import org.graalvm.compiler.replacements.nodes.BasicArrayCopyNode; |
| |
| @NodeInfo(allowedUsageTypes = InputType.Memory) |
| public final class ArrayCopySlowPathNode extends BasicArrayCopyNode { |
| |
| public static final NodeClass<ArrayCopySlowPathNode> TYPE = NodeClass.create(ArrayCopySlowPathNode.class); |
| |
| private final SnippetTemplate.SnippetInfo snippet; |
| |
| /** |
| * Extra context for the slow path snippet. |
| */ |
| private final Object argument; |
| |
| /** |
| * AOT compilation requires klass constants to be exposed after the first lowering to be handled |
| * automatically. Lowering for {@link ArrayCopySlowPathNode}, with snippet == |
| * {@link ArrayCopySnippets#arraycopyPredictedObjectWork}, requires a klass of Object[]. For |
| * other snippets {@link #predictedKlass} is a null constant. |
| */ |
| @Input protected ValueNode predictedKlass; |
| |
| public ArrayCopySlowPathNode(ValueNode src, ValueNode srcPos, ValueNode dest, ValueNode destPos, ValueNode length, ValueNode predictedKlass, JavaKind elementKind, |
| SnippetTemplate.SnippetInfo snippet, Object argument) { |
| super(TYPE, src, srcPos, dest, destPos, length, elementKind, BytecodeFrame.INVALID_FRAMESTATE_BCI); |
| assert StampTool.isPointerNonNull(src) && StampTool.isPointerNonNull(dest) : "must have been null checked"; |
| this.snippet = snippet; |
| this.argument = argument; |
| this.predictedKlass = predictedKlass; |
| } |
| |
| @NodeIntrinsic |
| public static native void arraycopy(Object nonNullSrc, int srcPos, Object nonNullDest, int destPos, int length, KlassPointer predictedKlass, |
| @ConstantNodeParameter JavaKind elementKind, @ConstantNodeParameter SnippetTemplate.SnippetInfo snippet, @ConstantNodeParameter Object argument); |
| |
| public SnippetTemplate.SnippetInfo getSnippet() { |
| return snippet; |
| } |
| |
| public Object getArgument() { |
| return argument; |
| } |
| |
| @Override |
| public LocationIdentity getLocationIdentity() { |
| if (elementKind != null) { |
| return NamedLocationIdentity.getArrayLocation(elementKind); |
| } |
| return any(); |
| } |
| |
| public void setBci(int bci) { |
| this.bci = bci; |
| } |
| |
| public ValueNode getPredictedKlass() { |
| return predictedKlass; |
| } |
| } |