Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/ConstantLocationNode.java @ 9205:9adb07d6f07f
AddLocationNode
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Mon, 22 Apr 2013 10:30:07 +0200 |
parents | 589e140a7f1c |
children | 8e7dc0023b04 |
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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.nodes.extended; import com.oracle.graal.api.meta.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; /** * Location node that has a constant displacement. Can represent addresses of the form [base + disp] * where base is a node and disp is a constant. */ @NodeInfo(nameTemplate = "Loc {p#locationIdentity/s}") public class ConstantLocationNode extends LocationNode { private final long displacement; public long displacement() { return displacement; } public static ConstantLocationNode create(Object identity, Kind kind, long displacement, Graph graph) { return graph.unique(new ConstantLocationNode(identity, kind, displacement)); } protected ConstantLocationNode(Object identity, Kind kind, long displacement) { super(identity, kind); this.displacement = displacement; } @Override protected ConstantLocationNode addDisplacement(long x) { return create(locationIdentity(), getValueKind(), displacement + x, graph()); } @Override public Value generateLea(LIRGeneratorTool gen, Value base) { return gen.emitLea(base, displacement(), Value.ILLEGAL, 0); } @Override public Value generateLoad(LIRGeneratorTool gen, Value base, DeoptimizingNode deopting) { return gen.emitLoad(getValueKind(), base, displacement(), Value.ILLEGAL, 0, deopting); } @Override public void generateStore(LIRGeneratorTool gen, Value base, Value value, DeoptimizingNode deopting) { gen.emitStore(getValueKind(), base, displacement(), Value.ILLEGAL, 0, value, deopting); } }