| /* |
| * Copyright (c) 2009, 2015, 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.java; |
| |
| import org.graalvm.compiler.core.common.type.StampFactory; |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.nodeinfo.InputType; |
| import org.graalvm.compiler.nodeinfo.NodeInfo; |
| import org.graalvm.compiler.nodes.FrameState; |
| import org.graalvm.compiler.nodes.StateSplit; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.spi.Virtualizable; |
| import org.graalvm.compiler.nodes.spi.VirtualizerTool; |
| import org.graalvm.compiler.nodes.virtual.VirtualInstanceNode; |
| import org.graalvm.compiler.nodes.virtual.VirtualObjectNode; |
| |
| import jdk.vm.ci.meta.ResolvedJavaField; |
| |
| /** |
| * The {@code StoreFieldNode} represents a write to a static or instance field. |
| */ |
| @NodeInfo(nameTemplate = "StoreField#{p#field/s}") |
| public final class StoreFieldNode extends AccessFieldNode implements StateSplit, Virtualizable { |
| public static final NodeClass<StoreFieldNode> TYPE = NodeClass.create(StoreFieldNode.class); |
| |
| @Input ValueNode value; |
| @OptionalInput(InputType.State) FrameState stateAfter; |
| |
| @Override |
| public FrameState stateAfter() { |
| return stateAfter; |
| } |
| |
| @Override |
| public void setStateAfter(FrameState x) { |
| assert x == null || x.isAlive() : "frame state must be in a graph"; |
| updateUsages(stateAfter, x); |
| stateAfter = x; |
| } |
| |
| @Override |
| public boolean hasSideEffect() { |
| return true; |
| } |
| |
| public ValueNode value() { |
| return value; |
| } |
| |
| public StoreFieldNode(ValueNode object, ResolvedJavaField field, ValueNode value) { |
| super(TYPE, StampFactory.forVoid(), object, field); |
| this.value = value; |
| } |
| |
| public StoreFieldNode(ValueNode object, ResolvedJavaField field, ValueNode value, FrameState stateAfter) { |
| super(TYPE, StampFactory.forVoid(), object, field); |
| this.value = value; |
| this.stateAfter = stateAfter; |
| } |
| |
| @Override |
| public void virtualize(VirtualizerTool tool) { |
| ValueNode alias = tool.getAlias(object()); |
| if (alias instanceof VirtualObjectNode) { |
| VirtualInstanceNode virtual = (VirtualInstanceNode) alias; |
| int fieldIndex = virtual.fieldIndex(field()); |
| if (fieldIndex != -1) { |
| tool.setVirtualEntry(virtual, fieldIndex, value(), false); |
| tool.delete(); |
| } |
| } |
| } |
| |
| public FrameState getState() { |
| return stateAfter; |
| } |
| } |