Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.virtual/src/com/oracle/graal/virtual/phases/ea/VirtualizerToolImpl.java @ 7728:77c86cf33685
remove unnecessary virtualId from VirtualObjectNodes
author | Lukas Stadler <lukas.stadler@jku.at> |
---|---|
date | Tue, 05 Feb 2013 17:41:15 +0100 |
parents | 94f032472c28 |
children | eaecd7c187ad |
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/* * Copyright (c) 2011, 2012, 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.virtual.phases.ea; import static com.oracle.graal.virtual.phases.ea.PartialEscapeAnalysisPhase.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.Virtualizable.EscapeState; import com.oracle.graal.nodes.spi.Virtualizable.State; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.nodes.virtual.*; import com.oracle.graal.phases.*; class VirtualizerToolImpl implements VirtualizerTool { private final GraphEffectList effects; private final NodeBitMap usages; private final MetaAccessProvider metaAccess; VirtualizerToolImpl(GraphEffectList effects, NodeBitMap usages, MetaAccessProvider metaAccess) { this.effects = effects; this.usages = usages; this.metaAccess = metaAccess; } private boolean deleted; private boolean customAction; private BlockState state; private ValueNode current; private int newVirtualObjectCount = 0; @Override public MetaAccessProvider getMetaAccessProvider() { return metaAccess; } public void reset(BlockState newState, ValueNode newCurrent) { deleted = false; customAction = false; this.state = newState; this.current = newCurrent; } public boolean isDeleted() { return deleted; } public boolean isCustomAction() { return customAction; } public int getNewVirtualObjectCount() { return newVirtualObjectCount; } @Override public State getObjectState(ValueNode value) { return state.getObjectState(value); } @Override public void setVirtualEntry(State objectState, int index, ValueNode value) { ObjectState obj = (ObjectState) objectState; assert obj != null && obj.isVirtual() : "not virtual: " + obj; ObjectState valueState = state.getObjectState(value); if (valueState == null) { obj.setEntry(index, getReplacedValue(value)); } else { if (valueState.getState() == EscapeState.Virtual) { obj.setEntry(index, value); } else { obj.setEntry(index, valueState.getMaterializedValue()); } } } @Override public ValueNode getMaterializedValue(ValueNode value) { ObjectState obj = state.getObjectState(value); return obj != null && !obj.isVirtual() ? obj.getMaterializedValue() : null; } @Override public ValueNode getReplacedValue(ValueNode original) { return state.getScalarAlias(original); } @Override public void replaceWithVirtual(VirtualObjectNode virtual) { state.addAndMarkAlias(virtual, current, usages); if (current instanceof FixedWithNextNode) { effects.deleteFixedNode((FixedWithNextNode) current); } deleted = true; } @Override public void replaceWithValue(ValueNode replacement) { effects.replaceAtUsages(current, state.getScalarAlias(replacement)); state.addScalarAlias(current, replacement); deleted = true; } @Override public void delete() { assert current instanceof FixedWithNextNode; effects.deleteFixedNode((FixedWithNextNode) current); deleted = true; } @Override public void replaceFirstInput(Node oldInput, Node replacement) { effects.replaceFirstInput(current, oldInput, replacement); } @Override public void customAction(Runnable action) { effects.customAction(action); customAction = true; } @Override public void createVirtualObject(VirtualObjectNode virtualObject, ValueNode[] entryState, int lockCount) { trace("{{%s}} ", current); if (virtualObject.isAlive()) { state.addAndMarkAlias(virtualObject, virtualObject, usages); } else { effects.addFloatingNode(virtualObject); } for (int i = 0; i < entryState.length; i++) { entryState[i] = state.getScalarAlias(entryState[i]); } state.addObject(virtualObject, new ObjectState(virtualObject, entryState, EscapeState.Virtual, lockCount)); state.addAndMarkAlias(virtualObject, virtualObject, usages); PartialEscapeClosure.METRIC_ALLOCATION_REMOVED.increment(); newVirtualObjectCount++; } @Override public int getMaximumEntryCount() { return GraalOptions.MaximumEscapeAnalysisArrayLength; } @Override public void replaceWith(ValueNode node) { State resultState = getObjectState(node); if (resultState == null) { replaceWithValue(node); } else { if (resultState.getState() == EscapeState.Virtual) { replaceWithVirtual(resultState.getVirtualObject()); } else { replaceWithValue(resultState.getMaterializedValue()); } } } }