| /* |
| * 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.compiler.core.common.LocationIdentity.any; |
| import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_200; |
| import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_200; |
| |
| import org.graalvm.compiler.core.common.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_200, size = SIZE_200) |
| 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); |
| } |