Mercurial > hg > graal-compiler
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/AddLocationNode.java @ 18998:ec0733b5a90a
Allow final modifier on node subclasses and start adding the modifier to leaf classes.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Wed, 28 Jan 2015 02:34:14 +0100 |
parents | f57d86eb036f |
children | 7e2c87dae93e |
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/* * Copyright (c) 2013, 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.compiler.common.type.*; import com.oracle.graal.graph.spi.*; import com.oracle.graal.lir.gen.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.calc.*; import com.oracle.graal.nodes.spi.*; /** * Location node that is the sum of two other location nodes. Can represent locations in the form of * [(base + x) + y] where base is a node and x and y are location nodes. */ @NodeInfo(nameTemplate = "AddLoc {p#locationIdentity/s}") public final class AddLocationNode extends LocationNode implements Canonicalizable.Binary<LocationNode> { @Input(InputType.Association) ValueNode x; @Input(InputType.Association) ValueNode y; public LocationNode getX() { return (LocationNode) x; } public LocationNode getY() { return (LocationNode) y; } public AddLocationNode(LocationNode x, LocationNode y) { super(StampFactory.forVoid()); assert x.getLocationIdentity().equals(y.getLocationIdentity()); this.x = x; this.y = y; } @Override public LocationIdentity getLocationIdentity() { return getX().getLocationIdentity(); } public LocationNode canonical(CanonicalizerTool tool, LocationNode forX, LocationNode forY) { if (forX instanceof ConstantLocationNode) { return canonical((ConstantLocationNode) forX, forY); } if (forY instanceof ConstantLocationNode) { return canonical((ConstantLocationNode) forY, forX); } if (forX instanceof IndexedLocationNode && forY instanceof IndexedLocationNode) { IndexedLocationNode xIdx = (IndexedLocationNode) forX; IndexedLocationNode yIdx = (IndexedLocationNode) forY; if (xIdx.getIndexScaling() == yIdx.getIndexScaling()) { long displacement = xIdx.getDisplacement() + yIdx.getDisplacement(); ValueNode index = BinaryArithmeticNode.add(xIdx.getIndex(), yIdx.getIndex()); return new IndexedLocationNode(getLocationIdentity(), displacement, index, xIdx.getIndexScaling()); } } return this; } private LocationNode canonical(ConstantLocationNode constant, LocationNode other) { if (other instanceof ConstantLocationNode) { ConstantLocationNode otherConst = (ConstantLocationNode) other; return new ConstantLocationNode(getLocationIdentity(), otherConst.getDisplacement() + constant.getDisplacement()); } else if (other instanceof IndexedLocationNode) { IndexedLocationNode otherIdx = (IndexedLocationNode) other; return new IndexedLocationNode(getLocationIdentity(), otherIdx.getDisplacement() + constant.getDisplacement(), otherIdx.getIndex(), otherIdx.getIndexScaling()); } else if (other instanceof AddLocationNode) { AddLocationNode otherAdd = (AddLocationNode) other; LocationNode newInner = otherAdd.canonical(constant, otherAdd.getX()); if (newInner != otherAdd) { return new AddLocationNode(newInner, otherAdd.getY()); } } return this; } @Override public Value generateAddress(NodeMappableLIRBuilder builder, LIRGeneratorTool gen, Value base) { Value xAddr = getX().generateAddress(builder, gen, base); return getY().generateAddress(builder, gen, xAddr); } @Override public IntegerStamp getDisplacementStamp() { return (IntegerStamp) IntegerStamp.OPS.getAdd().foldStamp(getX().getDisplacementStamp(), getY().getDisplacementStamp()); } }