/* * Copyright (c) 2013, 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 static org.graalvm.api.word.LocationIdentity.any; import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_256; import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_64; import org.graalvm.api.word.LocationIdentity; import org.graalvm.compiler.core.common.type.StampFactory; import org.graalvm.compiler.graph.NodeClass; 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.extended.ArrayRangeWriteNode; import org.graalvm.compiler.nodes.memory.MemoryAccess; import org.graalvm.compiler.nodes.memory.MemoryCheckpoint; import org.graalvm.compiler.nodes.memory.MemoryNode; import org.graalvm.compiler.nodes.spi.Lowerable; import org.graalvm.compiler.nodes.spi.LoweringTool; import org.graalvm.compiler.replacements.SnippetTemplate.Arguments; import jdk.vm.ci.meta.JavaKind; @NodeInfo(allowedUsageTypes = {InputType.Memory}, cycles = CYCLES_256, size = SIZE_64) public final class UnsafeArrayCopyNode extends ArrayRangeWriteNode implements Lowerable, MemoryCheckpoint.Single, MemoryAccess { public static final NodeClass<UnsafeArrayCopyNode> TYPE = NodeClass.create(UnsafeArrayCopyNode.class); @Input ValueNode src; @Input ValueNode srcPos; @Input ValueNode dest; @Input ValueNode destPos; @Input ValueNode length; @OptionalInput ValueNode layoutHelper; @OptionalInput(InputType.Memory) MemoryNode lastLocationAccess; protected JavaKind elementKind; public UnsafeArrayCopyNode(ValueNode src, ValueNode srcPos, ValueNode dest, ValueNode destPos, ValueNode length, ValueNode layoutHelper, JavaKind elementKind) { super(TYPE, StampFactory.forVoid()); assert layoutHelper == null || elementKind == null; this.src = src; this.srcPos = srcPos; this.dest = dest; this.destPos = destPos; this.length = length; this.layoutHelper = layoutHelper; this.elementKind = elementKind; } public UnsafeArrayCopyNode(ValueNode src, ValueNode srcPos, ValueNode dest, ValueNode destPos, ValueNode length, JavaKind elementKind) { this(src, srcPos, dest, destPos, length, null, elementKind); } public UnsafeArrayCopyNode(ValueNode src, ValueNode srcPos, ValueNode dest, ValueNode destPos, ValueNode length, ValueNode layoutHelper) { this(src, srcPos, dest, destPos, length, layoutHelper, null); } @Override public ValueNode getArray() { return dest; } @Override public ValueNode getIndex() { return destPos; } @Override public ValueNode getLength() { return length; } @Override public boolean isObjectArray() { return elementKind == JavaKind.Object; } @Override public boolean isInitialization() { return false; } public JavaKind getElementKind() { return elementKind; } @Override public void lower(LoweringTool tool) { if (graph().getGuardsStage().areFrameStatesAtDeopts()) { UnsafeArrayCopySnippets.Templates templates = tool.getReplacements().getSnippetTemplateCache(UnsafeArrayCopySnippets.Templates.class); templates.lower(this, tool); } } public void addSnippetArguments(Arguments args) { args.add("src", src); args.add("srcPos", srcPos); args.add("dest", dest); args.add("destPos", destPos); args.add("length", length); if (layoutHelper != null) { args.add("layoutHelper", layoutHelper); } } @Override public LocationIdentity getLocationIdentity() { if (elementKind != null) { return NamedLocationIdentity.getArrayLocation(elementKind); } return any(); } @Override public MemoryNode getLastLocationAccess() { return lastLocationAccess; } @Override public void setLastLocationAccess(MemoryNode lla) { updateUsagesInterface(lastLocationAccess, lla); lastLocationAccess = lla; } @NodeIntrinsic public static native void arraycopy(Object src, int srcPos, Object dest, int destPos, int length, @ConstantNodeParameter JavaKind elementKind); @NodeIntrinsic public static native void arraycopyPrimitive(Object src, int srcPos, Object dest, int destPos, int length, int layoutHelper); }