Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/UnsafeArrayCopyNode.java @ 15489:d0e3f6963ed7
mx: made parallel Java builds interact correctly with management of subprocesses upon abort/quit
author | Doug Simon <doug.simon@oracle.com> |
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date | Sun, 04 May 2014 01:26:50 +0200 |
parents | 882f4cb7cfcf |
children | ddd68e267e34 |
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/* * Copyright (c) 2013, 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 com.oracle.graal.hotspot.replacements; import static com.oracle.graal.api.meta.LocationIdentity.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.common.type.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.extended.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.replacements.SnippetTemplate.Arguments; @NodeInfo(allowedUsageTypes = {InputType.Memory}) public final class UnsafeArrayCopyNode extends ArrayRangeWriteNode implements Lowerable, MemoryCheckpoint.Single { @Input private ValueNode src; @Input private ValueNode srcPos; @Input private ValueNode dest; @Input private ValueNode destPos; @Input private ValueNode length; @Input private ValueNode layoutHelper; private Kind elementKind; private UnsafeArrayCopyNode(ValueNode src, ValueNode srcPos, ValueNode dest, ValueNode destPos, ValueNode length, ValueNode layoutHelper, Kind elementKind) { super(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; } private UnsafeArrayCopyNode(ValueNode src, ValueNode srcPos, ValueNode dest, ValueNode destPos, ValueNode length, Kind elementKind) { this(src, srcPos, dest, destPos, length, null, elementKind); } private 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 == Kind.Object; } @Override public boolean isInitialization() { return false; } public Kind getElementKind() { return elementKind; } @Override public void lower(LoweringTool tool) { if (graph().getGuardsStage() == StructuredGraph.GuardsStage.AFTER_FSA) { 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_LOCATION; } @NodeIntrinsic public static native void arraycopy(Object src, int srcPos, Object dest, int destPos, int length, @ConstantNodeParameter Kind elementKind); @NodeIntrinsic public static native void arraycopyPrimitive(Object src, int srcPos, Object dest, int destPos, int length, int layoutHelper); }