| /* |
| * Copyright (c) 2011, 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.nodes.memory; |
| |
| import static org.graalvm.compiler.nodeinfo.InputType.Guard; |
| |
| import org.graalvm.compiler.core.common.LIRKind; |
| import org.graalvm.compiler.core.common.LocationIdentity; |
| import org.graalvm.compiler.debug.GraalError; |
| import org.graalvm.compiler.graph.Node; |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.graph.spi.Simplifiable; |
| import org.graalvm.compiler.graph.spi.SimplifierTool; |
| import org.graalvm.compiler.nodeinfo.NodeInfo; |
| import org.graalvm.compiler.nodes.PiNode; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.extended.GuardingNode; |
| import org.graalvm.compiler.nodes.memory.address.AddressNode; |
| import org.graalvm.compiler.nodes.memory.address.AddressNode.Address; |
| import org.graalvm.compiler.nodes.memory.address.OffsetAddressNode; |
| import org.graalvm.compiler.nodes.spi.LIRLowerable; |
| import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; |
| import org.graalvm.compiler.nodes.spi.Virtualizable; |
| import org.graalvm.compiler.nodes.spi.VirtualizerTool; |
| |
| /** |
| * Writes a given {@linkplain #value() value} a {@linkplain FixedAccessNode memory location}. |
| */ |
| @NodeInfo(nameTemplate = "Write#{p#location/s}") |
| public class WriteNode extends AbstractWriteNode implements LIRLowerable, Simplifiable, Virtualizable { |
| |
| public static final NodeClass<WriteNode> TYPE = NodeClass.create(WriteNode.class); |
| |
| @OptionalInput(Guard) protected GuardingNode storeCheckGuard; |
| |
| protected WriteNode(ValueNode address, LocationIdentity location, ValueNode value, BarrierType barrierType) { |
| this((AddressNode) address, location, value, barrierType); |
| } |
| |
| public WriteNode(AddressNode address, LocationIdentity location, ValueNode value, BarrierType barrierType) { |
| super(TYPE, address, location, value, barrierType); |
| } |
| |
| public WriteNode(AddressNode address, LocationIdentity location, ValueNode value, BarrierType barrierType, boolean initialization) { |
| super(TYPE, address, location, value, barrierType, initialization); |
| } |
| |
| public WriteNode(AddressNode address, LocationIdentity location, ValueNode value, BarrierType barrierType, GuardingNode guard, boolean initialization) { |
| this(TYPE, address, location, value, barrierType, guard, initialization); |
| } |
| |
| protected WriteNode(NodeClass<? extends WriteNode> c, AddressNode address, LocationIdentity location, ValueNode value, BarrierType barrierType, GuardingNode guard, boolean initialization) { |
| super(c, address, location, value, barrierType, guard, initialization); |
| } |
| |
| @Override |
| public void generate(NodeLIRBuilderTool gen) { |
| LIRKind writeKind = gen.getLIRGeneratorTool().getLIRKind(value().stamp()); |
| gen.getLIRGeneratorTool().getArithmetic().emitStore(writeKind, gen.operand(address), gen.operand(value()), gen.state(this)); |
| } |
| |
| @Override |
| public void simplify(SimplifierTool tool) { |
| if (getAddress() instanceof OffsetAddressNode) { |
| OffsetAddressNode objAddress = (OffsetAddressNode) getAddress(); |
| if (objAddress.getBase() instanceof PiNode && ((PiNode) objAddress.getBase()).getGuard() == getGuard()) { |
| OffsetAddressNode newAddress = graph().unique(new OffsetAddressNode(((PiNode) objAddress.getBase()).getOriginalNode(), objAddress.getOffset())); |
| setAddress(newAddress); |
| tool.addToWorkList(newAddress); |
| } |
| } |
| } |
| |
| @NodeIntrinsic |
| public static native void writeMemory(Address address, @ConstantNodeParameter LocationIdentity location, Object value, @ConstantNodeParameter BarrierType barrierType); |
| |
| @Override |
| public void virtualize(VirtualizerTool tool) { |
| throw GraalError.shouldNotReachHere("unexpected WriteNode before PEA"); |
| } |
| |
| @Override |
| public boolean canNullCheck() { |
| return true; |
| } |
| |
| public void setStoreCheckGuard(GuardingNode newStoreCheckGuard) { |
| updateUsages((Node) this.storeCheckGuard, (Node) newStoreCheckGuard); |
| this.storeCheckGuard = newStoreCheckGuard; |
| } |
| } |