Mercurial > hg > graal-compiler
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/WriteNode.java @ 17450:45b45f902bed
removed Node generation (GRAAL-857)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Wed, 15 Oct 2014 15:35:33 +0200 |
parents | 845e881ce054 |
children | d138867d61c4 |
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/* * Copyright (c) 2011, 2014, 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 com.oracle.graal.nodes.extended; import com.oracle.graal.api.meta.*; import com.oracle.graal.graph.spi.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.extended.LocationNode.Location; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.nodes.virtual.*; /** * Writes a given {@linkplain #value() value} a {@linkplain FixedAccessNode memory location}. */ @NodeInfo public class WriteNode extends AbstractWriteNode implements LIRLowerable, Simplifiable, Virtualizable { public static WriteNode create(ValueNode object, ValueNode value, ValueNode location, BarrierType barrierType) { return new WriteNode(object, value, location, barrierType); } protected WriteNode(ValueNode object, ValueNode value, ValueNode location, BarrierType barrierType) { super(object, value, location, barrierType); } public static WriteNode create(ValueNode object, ValueNode value, ValueNode location, BarrierType barrierType, boolean initialization) { return new WriteNode(object, value, location, barrierType, initialization); } protected WriteNode(ValueNode object, ValueNode value, ValueNode location, BarrierType barrierType, boolean initialization) { super(object, value, location, barrierType, initialization); } public static WriteNode create(ValueNode object, ValueNode value, ValueNode location, BarrierType barrierType, GuardingNode guard, boolean initialization) { return new WriteNode(object, value, location, barrierType, guard, initialization); } protected WriteNode(ValueNode object, ValueNode value, ValueNode location, BarrierType barrierType, GuardingNode guard, boolean initialization) { super(object, value, location, barrierType, guard, initialization); } @Override public void generate(NodeLIRBuilderTool gen) { Value address = location().generateAddress(gen, gen.getLIRGeneratorTool(), gen.operand(object())); LIRKind writeKind = gen.getLIRGeneratorTool().getLIRKind(value().stamp()); gen.getLIRGeneratorTool().emitStore(writeKind, address, gen.operand(value()), gen.state(this)); } @Override public void simplify(SimplifierTool tool) { if (object() instanceof PiNode && ((PiNode) object()).getGuard() == getGuard()) { setObject(((PiNode) object()).getOriginalNode()); } } @NodeIntrinsic public static native void writeMemory(Object object, Object value, Location location, @ConstantNodeParameter BarrierType barrierType); @Override public void virtualize(VirtualizerTool tool) { if (location() instanceof ConstantLocationNode) { ConstantLocationNode constantLocation = (ConstantLocationNode) location(); State state = tool.getObjectState(object()); if (state != null && state.getState() == EscapeState.Virtual) { VirtualObjectNode virtual = state.getVirtualObject(); int entryIndex = virtual.entryIndexForOffset(constantLocation.getDisplacement()); if (entryIndex != -1 && virtual.entryKind(entryIndex) == constantLocation.getValueKind()) { tool.setVirtualEntry(state, entryIndex, value(), false); tool.delete(); } } } } public boolean canNullCheck() { return true; } }