Mercurial > hg > graal-compiler
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/MemoryMapNode.java @ 16919:0fe4732e5181
made use of generated Node classes predicated on value of graal.useGeneratedNodes system property (default is false)
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 25 Aug 2014 13:45:12 +0200 |
parents | f90dcdbbb75e |
children | ffb974bef674 |
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/* * Copyright (c) 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; import static com.oracle.graal.api.meta.LocationIdentity.*; import java.util.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.common.type.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.calc.*; import com.oracle.graal.nodes.extended.*; import com.oracle.graal.nodes.spi.*; @NodeInfo(allowedUsageTypes = {InputType.Extension}) public class MemoryMapNode extends FloatingNode implements MemoryMap, LIRLowerable { private final List<LocationIdentity> locationIdentities; @Input(InputType.Memory) NodeInputList<ValueNode> nodes; private boolean checkOrder(Map<LocationIdentity, MemoryNode> mmap) { for (int i = 0; i < locationIdentities.size(); i++) { LocationIdentity locationIdentity = locationIdentities.get(i); ValueNode n = nodes.get(i); assertTrue(mmap.get(locationIdentity) == n, "iteration order of keys differs from values in input map"); } return true; } public static MemoryMapNode create(Map<LocationIdentity, MemoryNode> mmap) { return USE_GENERATED_NODES ? new MemoryMapNodeGen(mmap) : new MemoryMapNode(mmap); } protected MemoryMapNode(Map<LocationIdentity, MemoryNode> mmap) { super(StampFactory.forVoid()); locationIdentities = new ArrayList<>(mmap.keySet()); nodes = new NodeInputList<>(this, mmap.values()); assert checkOrder(mmap); } public boolean isEmpty() { if (locationIdentities.isEmpty()) { return true; } if (locationIdentities.size() == 1) { if (nodes.get(0) instanceof StartNode) { return true; } } return false; } public MemoryNode getLastLocationAccess(LocationIdentity locationIdentity) { if (locationIdentity == FINAL_LOCATION) { return null; } else { int index = locationIdentities.indexOf(locationIdentity); if (index == -1) { index = locationIdentities.indexOf(ANY_LOCATION); } assert index != -1; return (MemoryNode) nodes.get(index); } } public Collection<LocationIdentity> getLocations() { return locationIdentities; } public Map<LocationIdentity, MemoryNode> toMap() { HashMap<LocationIdentity, MemoryNode> res = new HashMap<>(locationIdentities.size()); for (int i = 0; i < nodes.size(); i++) { res.put(locationIdentities.get(i), (MemoryNode) nodes.get(i)); } return res; } public void generate(NodeLIRBuilderTool generator) { // nothing to do... } }