| /* |
| * Copyright (c) 2014, 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. |
| */ |
| //JaCoCo Exclude |
| |
| |
| package org.graalvm.compiler.hotspot.replacements.arraycopy; |
| |
| import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_UNKNOWN; |
| import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_UNKNOWN; |
| |
| import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor; |
| import org.graalvm.compiler.core.common.type.PrimitiveStamp; |
| import org.graalvm.compiler.core.common.type.StampFactory; |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.hotspot.HotSpotGraalRuntimeProvider; |
| import org.graalvm.compiler.hotspot.meta.HotSpotHostForeignCallsProvider; |
| import org.graalvm.compiler.hotspot.nodes.GetObjectAddressNode; |
| import org.graalvm.compiler.nodeinfo.InputType; |
| import org.graalvm.compiler.nodeinfo.NodeInfo; |
| import org.graalvm.compiler.nodes.ConstantNode; |
| import org.graalvm.compiler.nodes.FixedWithNextNode; |
| import org.graalvm.compiler.nodes.NodeView; |
| import org.graalvm.compiler.nodes.StructuredGraph; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.calc.AddNode; |
| import org.graalvm.compiler.nodes.calc.IntegerConvertNode; |
| import org.graalvm.compiler.nodes.calc.LeftShiftNode; |
| import org.graalvm.compiler.nodes.extended.ForeignCallNode; |
| import org.graalvm.compiler.nodes.memory.AbstractMemoryCheckpoint; |
| import org.graalvm.compiler.nodes.memory.MemoryCheckpoint; |
| import org.graalvm.compiler.nodes.memory.address.OffsetAddressNode; |
| import org.graalvm.compiler.nodes.spi.Lowerable; |
| import org.graalvm.compiler.nodes.spi.LoweringTool; |
| import org.graalvm.compiler.word.Word; |
| import jdk.internal.vm.compiler.word.LocationIdentity; |
| |
| import jdk.vm.ci.code.CodeUtil; |
| import jdk.vm.ci.meta.JavaKind; |
| |
| @NodeInfo(allowedUsageTypes = {InputType.Memory, InputType.Value}, cycles = CYCLES_UNKNOWN, size = SIZE_UNKNOWN) |
| public final class CheckcastArrayCopyCallNode extends AbstractMemoryCheckpoint implements Lowerable, MemoryCheckpoint.Single { |
| |
| public static final NodeClass<CheckcastArrayCopyCallNode> TYPE = NodeClass.create(CheckcastArrayCopyCallNode.class); |
| @Input ValueNode src; |
| @Input ValueNode srcPos; |
| @Input ValueNode dest; |
| @Input ValueNode destPos; |
| @Input ValueNode length; |
| @Input ValueNode destElemKlass; |
| @Input ValueNode superCheckOffset; |
| |
| protected final boolean uninit; |
| |
| protected final HotSpotGraalRuntimeProvider runtime; |
| |
| protected CheckcastArrayCopyCallNode(@InjectedNodeParameter HotSpotGraalRuntimeProvider runtime, ValueNode src, ValueNode srcPos, ValueNode dest, ValueNode destPos, ValueNode length, |
| ValueNode superCheckOffset, ValueNode destElemKlass, boolean uninit) { |
| super(TYPE, StampFactory.forKind(JavaKind.Int)); |
| this.src = src; |
| this.srcPos = srcPos; |
| this.dest = dest; |
| this.destPos = destPos; |
| this.length = length; |
| this.superCheckOffset = superCheckOffset; |
| this.destElemKlass = destElemKlass; |
| this.uninit = uninit; |
| this.runtime = runtime; |
| } |
| |
| public ValueNode getSource() { |
| return src; |
| } |
| |
| public ValueNode getSourcePosition() { |
| return srcPos; |
| } |
| |
| public ValueNode getDestination() { |
| return dest; |
| } |
| |
| public ValueNode getDestinationPosition() { |
| return destPos; |
| } |
| |
| public ValueNode getLength() { |
| return length; |
| } |
| |
| public boolean isUninit() { |
| return uninit; |
| } |
| |
| private ValueNode computeBase(LoweringTool tool, ValueNode base, ValueNode pos) { |
| FixedWithNextNode basePtr = graph().add(new GetObjectAddressNode(base)); |
| graph().addBeforeFixed(this, basePtr); |
| |
| int shift = CodeUtil.log2(tool.getMetaAccess().getArrayIndexScale(JavaKind.Object)); |
| ValueNode extendedPos = IntegerConvertNode.convert(pos, StampFactory.forKind(runtime.getTarget().wordJavaKind), graph(), NodeView.DEFAULT); |
| ValueNode scaledIndex = graph().unique(new LeftShiftNode(extendedPos, ConstantNode.forInt(shift, graph()))); |
| ValueNode offset = graph().unique( |
| new AddNode(scaledIndex, |
| ConstantNode.forIntegerBits(PrimitiveStamp.getBits(scaledIndex.stamp(NodeView.DEFAULT)), tool.getMetaAccess().getArrayBaseOffset(JavaKind.Object), graph()))); |
| return graph().unique(new OffsetAddressNode(basePtr, offset)); |
| } |
| |
| @Override |
| public void lower(LoweringTool tool) { |
| if (graph().getGuardsStage().areFrameStatesAtDeopts()) { |
| ForeignCallDescriptor desc = HotSpotHostForeignCallsProvider.lookupCheckcastArraycopyDescriptor(isUninit()); |
| StructuredGraph graph = graph(); |
| ValueNode srcAddr = computeBase(tool, getSource(), getSourcePosition()); |
| ValueNode destAddr = computeBase(tool, getDestination(), getDestinationPosition()); |
| ValueNode len = getLength(); |
| if (len.stamp(NodeView.DEFAULT).getStackKind() != runtime.getTarget().wordJavaKind) { |
| len = IntegerConvertNode.convert(len, StampFactory.forKind(runtime.getTarget().wordJavaKind), graph(), NodeView.DEFAULT); |
| } |
| ForeignCallNode call = graph.add(new ForeignCallNode(runtime.getHostBackend().getForeignCalls(), desc, srcAddr, destAddr, len, superCheckOffset, destElemKlass)); |
| call.setStateAfter(stateAfter()); |
| graph.replaceFixedWithFixed(this, call); |
| } |
| } |
| |
| @Override |
| public LocationIdentity getLocationIdentity() { |
| /* |
| * Because of restrictions that the memory graph of snippets matches the original node, |
| * pretend that we kill any. |
| */ |
| return LocationIdentity.any(); |
| } |
| |
| @NodeIntrinsic |
| public static native int checkcastArraycopy(Object src, int srcPos, Object dest, int destPos, int length, Word superCheckOffset, Object destElemKlass, @ConstantNodeParameter boolean uninit); |
| } |