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annotate graal/GraalCompiler/src/com/sun/c1x/ir/ArithmeticOp.java @ 2851:14708c03abba

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Remove isNonNull
author Gilles Duboscq <gilles.duboscq@oracle.com>
date Tue, 07 Jun 2011 11:36:32 +0200
parents bd17ac598c6e
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2009, 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.sun.c1x.ir;
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24
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25 import com.oracle.graal.graph.*;
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26 import com.sun.c1x.debug.*;
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27 import com.sun.cri.bytecode.*;
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28 import com.sun.cri.ci.*;
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29
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30 /**
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31 * The {@code ArithmeticOp} class represents arithmetic operations such as addition, subtraction, etc.
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32 */
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33 public final class ArithmeticOp extends Op2 {
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34
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35 private static final int INPUT_COUNT = 0;
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36 private static final int SUCCESSOR_COUNT = 0;
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37
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38 private final boolean canTrap;
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39 private final boolean isStrictFP;
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40
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41 /**
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42 * Creates a new arithmetic operation.
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43 * @param opcode the bytecode opcode
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44 * @param kind the result kind of the operation
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45 * @param x the first input instruction
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46 * @param y the second input instruction
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47 * @param isStrictFP indicates this operation has strict rounding semantics
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48 * @param stateBefore the state for instructions that may trap
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49 */
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50 public ArithmeticOp(int opcode, CiKind kind, Value x, Value y, boolean isStrictFP, boolean canTrap, Graph graph) {
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51 super(kind, opcode, x, y, INPUT_COUNT, SUCCESSOR_COUNT, graph);
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52 this.isStrictFP = isStrictFP;
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53 this.canTrap = canTrap;
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54 }
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55
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56 /**
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57 * Checks whether this instruction has strict fp semantics.
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58 * @return {@code true} if this instruction has strict fp semantics
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59 */
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60 public boolean isStrictFP() {
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61 return isStrictFP;
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62 }
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63
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64 @Override
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65 public void accept(ValueVisitor v) {
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66 v.visitArithmeticOp(this);
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67 }
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68
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69 public boolean isCommutative() {
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70 return Bytecodes.isCommutative(opcode);
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71 }
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72
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73 @Override
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74 public void print(LogStream out) {
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75 out.print(x()).print(' ').print(Bytecodes.operator(opcode)).print(' ').print(y());
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76 }
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77
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78 @Override
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79 public String shortName() {
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80 return Bytecodes.operator(opcode);
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81 }
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82
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83 @Override
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84 public Node copy(Graph into) {
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85 ArithmeticOp x = new ArithmeticOp(opcode, kind, null, null, isStrictFP, canTrap, into);
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86 return x;
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87 }
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88 }