Mercurial > hg > graal-compiler
annotate graal/GraalCompiler/src/com/sun/c1x/ir/Return.java @ 2546:e1b3db8031ee
Removed liveness marking.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 21:54:31 +0200 |
parents | 16b9a8b5ad39 |
children | 0c6564c254af |
rev | line source |
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2507
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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.sun.c1x.debug.*; |
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26 import com.sun.cri.ci.*; |
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27 |
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28 /** |
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29 * The {@code Return} class definition. |
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30 * |
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31 * @author Ben L. Titzer |
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32 */ |
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33 public final class Return extends BlockEnd { |
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34 |
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35 Value result; |
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36 |
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37 /** |
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38 * Constructs a new Return instruction. |
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39 * @param result the instruction producing the result for this return; {@code null} if this |
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40 * is a void return |
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41 * @param isSafepoint {@code true} if this instruction is a safepoint instruction |
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42 */ |
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43 public Return(Value result, boolean isSafepoint) { |
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44 super(result == null ? CiKind.Void : result.kind, null, isSafepoint); |
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45 this.result = result; |
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46 } |
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47 |
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48 /** |
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49 * Gets the instruction that produces the result for the return. |
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50 * @return the instruction producing the result |
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51 */ |
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52 public Value result() { |
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53 return result; |
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54 } |
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55 |
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56 @Override |
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57 public void inputValuesDo(ValueClosure closure) { |
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58 if (result != null) { |
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59 result = closure.apply(result); |
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60 } |
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61 } |
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62 |
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63 @Override |
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64 public void accept(ValueVisitor v) { |
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65 v.visitReturn(this); |
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66 } |
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67 |
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68 @Override |
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69 public void print(LogStream out) { |
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70 if (result == null) { |
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71 out.print("return"); |
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72 } else { |
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73 out.print(kind.typeChar).print("return ").print(result); |
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74 } |
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75 } |
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76 } |