1 /* 2 * Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.nodes.extended; 24 25 import jdk.vm.ci.meta.JavaKind; 26 import jdk.vm.ci.meta.ResolvedJavaMethod; 27 28 import org.graalvm.compiler.core.common.LocationIdentity; 29 import org.graalvm.compiler.graph.Node.ConstantNodeParameter; 30 import org.graalvm.compiler.graph.Node.NodeIntrinsic; 31 import org.graalvm.compiler.nodes.ValueNode; 32 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext; 33 34 /** 35 * Copy a value at a location specified as an offset relative to a source object to another location 36 * specified as an offset relative to destination object. No null checks are performed. 37 */ 38 public final class UnsafeCopyNode { 39 40 public static boolean intrinsify(GraphBuilderContext b, @SuppressWarnings("unused") ResolvedJavaMethod targetMethod, ValueNode sourceObject, ValueNode sourceOffset, ValueNode destinationObject, 41 ValueNode destinationOffset, JavaKind accessKind, LocationIdentity locationIdentity) { 42 RawLoadNode value = b.add(new RawLoadNode(sourceObject, sourceOffset, accessKind, locationIdentity)); 43 b.add(new RawStoreNode(destinationObject, destinationOffset, value, accessKind, locationIdentity)); 44 return true; 45 } 46 47 @NodeIntrinsic 48 public static native void copy(Object srcObject, long srcOffset, Object destObject, long destOffset, @ConstantNodeParameter JavaKind kind, 49 @ConstantNodeParameter LocationIdentity locationIdentity); 50 }