Mercurial > hg > graal-compiler
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/DimensionsNode.java @ 17327:655f3e6b467b
made all Node data (i.e. non-edge) fields non-final and protected to support generating a copy "constructor" using Unsafe.allocateInstance
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 03 Oct 2014 14:19:31 +0200 |
parents | 845e881ce054 |
children | c9bb0da795d4 |
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/* * Copyright (c) 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.hotspot.nodes; import static com.oracle.graal.asm.NumUtil.*; import java.util.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.lir.gen.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.word.*; /** * Intrinsic for allocating an on-stack array of integers to hold the dimensions of a multianewarray * instruction. */ @NodeInfo public class DimensionsNode extends FixedWithNextNode implements LIRLowerable { protected int rank; public static DimensionsNode create(int rank) { return USE_GENERATED_NODES ? new DimensionsNodeGen(rank) : new DimensionsNode(rank); } protected DimensionsNode(int rank) { super(null); this.rank = rank; } @Override public void generate(NodeLIRBuilderTool gen) { LIRGeneratorTool lirGen = gen.getLIRGeneratorTool(); int size = rank * 4; int wordSize = lirGen.target().wordSize; int slots = roundUp(size, wordSize) / wordSize; StackSlot array = lirGen.getResult().getFrameMap().allocateStackSlots(slots, new BitSet(0), null); Value result = lirGen.emitAddress(array); gen.setResult(this, result); } @NodeIntrinsic(setStampFromReturnType = true) public static native Word allocaDimsArray(@ConstantNodeParameter int rank); }