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annotate graal/com.oracle.max.graal.jtt/src/com/oracle/graal/jtt/optimize/Phi01.java @ 5059:ed559a528128

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author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Thu, 08 Mar 2012 17:57:30 +0100
parents graal/com.oracle.max.graal.jtt/src/com/oracle/max/graal/jtt/optimize/Phi01.java@5b04b33dac74
children 4ed4295ce15f
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1 /*
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2 * Copyright (c) 2009, 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.max.graal.jtt.optimize;
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24
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25 import org.junit.*;
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26
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27 /*
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28 */
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29 public class Phi01 {
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30
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31 public static class Phi {
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32
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33 int f;
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34
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35 Phi(int f) {
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36 this.f = f;
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37 }
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38 }
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39
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40 public static int test(int arg) {
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41 return test2(new Phi(arg), arg);
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42 }
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43
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44 // @NEVER_INLINE
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45 private static int test2(Phi p, int a) {
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46 int arg = a;
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47 if (arg > 2) {
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48 p.f += 1;
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49 arg += 1;
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50 } else {
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51 p.f += 2;
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52 arg += 2;
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53 if (arg > 3) {
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54 p.f += 1;
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55 arg += 1;
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56 if (arg > 4) {
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57 p.f += 1;
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58 arg += 1;
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59 } else {
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60 p.f += 2;
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61 arg += 2;
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62 }
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63 } else {
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64 p.f += 2;
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65 arg += 2;
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66 }
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67 }
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68 return arg + p.f;
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69 }
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70
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71 @Test
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72 public void run0() throws Throwable {
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73 Assert.assertEquals(8, test(0));
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74 }
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75
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76 @Test
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77 public void run1() throws Throwable {
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78 Assert.assertEquals(10, test(1));
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79 }
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80
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81 @Test
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82 public void run2() throws Throwable {
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83 Assert.assertEquals(12, test(2));
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84 }
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85
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86 @Test
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87 public void run3() throws Throwable {
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88 Assert.assertEquals(8, test(3));
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89 }
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90
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91 @Test
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92 public void run4() throws Throwable {
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93 Assert.assertEquals(10, test(4));
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94 }
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95
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96 @Test
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97 public void run5() throws Throwable {
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98 Assert.assertEquals(14, test(6));
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99 }
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100
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101 }