Mercurial > hg > graal-compiler
annotate graal/com.oracle.max.graal.jtt/src/com/oracle/graal/jtt/optimize/VN_Float01.java @ 5060:4ed4295ce15f
Update import statements.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Thu, 08 Mar 2012 19:11:12 +0100 |
parents | ed559a528128 |
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rev | line source |
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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.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 * Tests optimization of float operations. |
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29 */ |
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30 public class VN_Float01 { |
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31 |
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32 public static float test(float arg) { |
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33 if (arg == 0) { |
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34 return add(arg + 10); |
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35 } |
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36 if (arg == 1) { |
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37 return sub(arg + 10); |
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38 } |
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39 if (arg == 2) { |
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40 return mul(arg + 10); |
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41 } |
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42 if (arg == 3) { |
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43 return div(arg + 10); |
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44 } |
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45 return 0; |
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46 } |
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47 |
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48 public static float add(float x) { |
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49 float c = 1; |
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50 float t = x + c; |
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51 float u = x + c; |
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52 return t + u; |
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53 } |
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54 |
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55 public static float sub(float x) { |
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56 float c = 1; |
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57 float t = x - c; |
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58 float u = x - c; |
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59 return t - u; |
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60 } |
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61 |
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62 public static float mul(float x) { |
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63 float c = 1; |
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64 float t = x * c; |
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65 float u = x * c; |
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66 return t * u; |
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67 } |
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68 |
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69 public static float div(float x) { |
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70 float c = 1; |
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71 float t = x / c; |
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72 float u = x / c; |
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73 return t / u; |
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74 } |
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75 |
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76 @Test |
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77 public void run0() throws Throwable { |
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78 Assert.assertEquals(22f, test(0f), 0); |
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79 } |
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80 |
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81 @Test |
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82 public void run1() throws Throwable { |
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83 Assert.assertEquals(0f, test(1f), 0); |
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84 } |
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85 |
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86 @Test |
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87 public void run2() throws Throwable { |
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88 Assert.assertEquals(144f, test(2f), 0); |
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89 } |
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90 |
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91 @Test |
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92 public void run3() throws Throwable { |
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93 Assert.assertEquals(1f, test(3f), 0); |
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94 } |
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95 |
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96 } |