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annotate graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/ir/FloatDiv.java @ 3519:16cee060c446

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added NodeInfo annotation
author Lukas Stadler <lukas.stadler@jku.at>
date Tue, 09 Aug 2011 14:43:41 +0200
parents 9b59afa78775
children 3e21ab23406b
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1 /*
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2 * Copyright (c) 2011, 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.max.graal.compiler.ir;
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25 import com.oracle.max.graal.compiler.phases.CanonicalizerPhase.*;
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26 import com.oracle.max.graal.graph.*;
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27 import com.sun.cri.bytecode.*;
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28 import com.sun.cri.ci.*;
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30 @NodeInfo(shortName = "/")
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31 public final class FloatDiv extends FloatArithmetic {
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32 private static final FloatDivCanonicalizerOp CANONICALIZER = new FloatDivCanonicalizerOp();
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33
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34 public FloatDiv(CiKind kind, Value x, Value y, boolean isStrictFP, Graph graph) {
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35 super(kind, kind == CiKind.Double ? Bytecodes.DDIV : Bytecodes.FDIV, x, y, isStrictFP, graph);
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36 }
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37
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38 @SuppressWarnings("unchecked")
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39 @Override
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40 public <T extends Op> T lookup(Class<T> clazz) {
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41 if (clazz == CanonicalizerOp.class) {
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42 return (T) CANONICALIZER;
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43 }
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44 return super.lookup(clazz);
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45 }
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46
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47 private static class FloatDivCanonicalizerOp implements CanonicalizerOp {
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48 @Override
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49 public Node canonical(Node node, NotifyReProcess reProcess) {
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50 FloatDiv div = (FloatDiv) node;
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51 Value x = div.x();
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52 Value y = div.y();
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53 if (x.isConstant() && y.isConstant()) {
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54 CiKind kind = div.kind;
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55 Graph graph = div.graph();
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56 if (kind == CiKind.Float) {
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57 return Constant.forFloat(x.asConstant().asFloat() / y.asConstant().asFloat(), graph);
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58 } else {
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59 assert kind == CiKind.Double;
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60 return Constant.forDouble(x.asConstant().asDouble() / y.asConstant().asDouble(), graph);
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61 }
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62 }
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63 return div;
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64 }
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65 }
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66
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67 }