Mercurial > hg > graal-compiler
annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/DimensionsNode.java @ 6431:2e376f8ea4e2
added snippet for lowering NewMultiArrayNodes
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 25 Sep 2012 09:09:19 +0200 |
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children | fb66841a0994 |
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1 /* |
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2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.oracle.graal.hotspot.nodes; |
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24 |
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25 import com.oracle.graal.api.code.*; |
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26 import com.oracle.graal.api.meta.*; |
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27 import com.oracle.graal.compiler.gen.*; |
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28 import com.oracle.graal.compiler.target.*; |
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29 import com.oracle.graal.nodes.*; |
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30 import com.oracle.graal.nodes.extended.*; |
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31 import com.oracle.graal.nodes.type.*; |
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32 import com.oracle.graal.snippets.*; |
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33 |
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34 |
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35 /** |
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36 * Intrinsic for allocating an on-stack array of integers to hold the dimensions |
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37 * of a multianewarray instruction. |
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38 */ |
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39 public final class DimensionsNode extends FixedWithNextNode implements LIRGenLowerable, MonitorEnter { |
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40 |
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41 private final int rank; |
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42 |
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43 public DimensionsNode(int rank, Kind wordKind) { |
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44 super(StampFactory.forWord(wordKind, true)); |
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45 this.rank = rank; |
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46 } |
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47 |
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48 @Override |
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49 public void generate(LIRGenerator gen) { |
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50 int size = rank * 4; |
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51 StackSlot array = gen.frameMap().allocateStackBlock(size, false); |
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52 Value result = gen.emitLea(array); |
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53 gen.setResult(this, result); |
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54 } |
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55 |
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56 @SuppressWarnings("unused") |
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57 @NodeIntrinsic |
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58 public static Word allocaDimsArray(@ConstantNodeParameter int rank, @ConstantNodeParameter Kind wordKind) { |
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59 throw new UnsupportedOperationException(); |
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60 } |
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61 } |