| /* |
| * 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 org.graalvm.compiler.core.common.LocationIdentity; |
| import org.graalvm.compiler.core.common.type.Stamp; |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.nodeinfo.InputType; |
| import org.graalvm.compiler.nodeinfo.NodeInfo; |
| import org.graalvm.compiler.nodes.DeoptimizingFixedWithNextNode; |
| import org.graalvm.compiler.nodes.FrameState; |
| import org.graalvm.compiler.nodes.extended.GuardingNode; |
| import org.graalvm.compiler.nodes.memory.address.AddressNode; |
| |
| /** |
| * Accesses a value at an memory address specified by an {@linkplain #address address}. The access |
| * does not include a null check on the object. |
| */ |
| @NodeInfo |
| public abstract class FixedAccessNode extends DeoptimizingFixedWithNextNode implements Access { |
| public static final NodeClass<FixedAccessNode> TYPE = NodeClass.create(FixedAccessNode.class); |
| |
| @OptionalInput(InputType.Guard) protected GuardingNode guard; |
| |
| @Input(InputType.Association) AddressNode address; |
| protected final LocationIdentity location; |
| |
| protected boolean nullCheck; |
| protected BarrierType barrierType; |
| |
| @Override |
| public AddressNode getAddress() { |
| return address; |
| } |
| |
| public void setAddress(AddressNode address) { |
| updateUsages(this.address, address); |
| this.address = address; |
| } |
| |
| @Override |
| public LocationIdentity getLocationIdentity() { |
| return location; |
| } |
| |
| public boolean getNullCheck() { |
| return nullCheck; |
| } |
| |
| public void setNullCheck(boolean check) { |
| this.nullCheck = check; |
| } |
| |
| protected FixedAccessNode(NodeClass<? extends FixedAccessNode> c, AddressNode address, LocationIdentity location, Stamp stamp) { |
| this(c, address, location, stamp, BarrierType.NONE); |
| } |
| |
| protected FixedAccessNode(NodeClass<? extends FixedAccessNode> c, AddressNode address, LocationIdentity location, Stamp stamp, BarrierType barrierType) { |
| this(c, address, location, stamp, null, barrierType, false, null); |
| } |
| |
| protected FixedAccessNode(NodeClass<? extends FixedAccessNode> c, AddressNode address, LocationIdentity location, Stamp stamp, GuardingNode guard, BarrierType barrierType, boolean nullCheck, |
| FrameState stateBefore) { |
| super(c, stamp, stateBefore); |
| this.address = address; |
| this.location = location; |
| this.guard = guard; |
| this.barrierType = barrierType; |
| this.nullCheck = nullCheck; |
| } |
| |
| @Override |
| public boolean canDeoptimize() { |
| return nullCheck; |
| } |
| |
| @Override |
| public GuardingNode getGuard() { |
| return guard; |
| } |
| |
| @Override |
| public void setGuard(GuardingNode guard) { |
| updateUsagesInterface(this.guard, guard); |
| this.guard = guard; |
| } |
| |
| @Override |
| public BarrierType getBarrierType() { |
| return barrierType; |
| } |
| } |