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annotate graal/com.oracle.graal.jtt/src/com/oracle/graal/jtt/optimize/InferStamp01.java @ 10603:2e7e7a22940f

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RightShiftNode: fix canonicalization for negative input
author Bernhard Urban <bernhard.urban@jku.at>
date Mon, 01 Jul 2013 23:50:27 +0200
parents 97d280a879ff
children 64dcb92ee75a
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1 /*
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2 * Copyright (c) 2013, 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 com.oracle.graal.jtt.*;
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26 import org.junit.*;
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27
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28 /**
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29 * test some stamps in combination with full loop unrolling and shifts.
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30 */
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31 public class InferStamp01 extends JTTTest {
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32
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33 public static int testi0(int arg) {
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34 int a = arg;
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35 for (int i = 0; i < 2; i++) {
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36 a = a >> 16;
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37 }
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38 return a;
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39 }
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40
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41 @Test
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42 public void runi0() throws Throwable {
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43 runTest("testi0", 0x7788_99aa);
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44 }
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45
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46 @Test
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47 public void runi0neg() throws Throwable {
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48 runTest("testi0", 0xf788_99aa);
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49 }
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50
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51 public static int testi1(int arg) {
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52 int a = arg;
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53 for (int i = 0; i < 2; i++) {
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54 a = a >>> 16;
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55 }
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56 return a;
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57 }
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58
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59 @Test
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60 public void runi1() throws Throwable {
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61 runTest("testi1", 0x7788_99aa);
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62 }
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63
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64 @Test
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65 public void runi1neg() throws Throwable {
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66 runTest("testi1", 0xf788_99aa);
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67 }
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68
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69 public static int testi2(int arg) {
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70 int a = arg;
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71 for (int i = 0; i < 2; i++) {
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72 a = a << 16;
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73 }
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74 return a;
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75 }
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76
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77 @Test
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78 public void runi2() throws Throwable {
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79 runTest("testi2", 0x7788_99aa);
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80 }
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81
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82 @Test
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83 public void runi2neg() throws Throwable {
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84 runTest("testi2", 0xf788_99aa);
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85 }
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86
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87 public static long testl0(long arg) {
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88 long a = arg;
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89 for (long i = 0; i < 2; i++) {
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90 a = a >> 32;
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91 }
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92 return a;
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93 }
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94
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95 @Test
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96 public void runl0() throws Throwable {
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97 runTest("testl0", 0x3344_5566_7788_99aaL);
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98 }
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99
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100 @Test
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101 public void runl0neg() throws Throwable {
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102 runTest("testl0", 0xf344_5566_7788_99aaL);
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103 }
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104
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105 public static long testl1(long arg) {
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106 long a = arg;
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107 for (long i = 0; i < 2; i++) {
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108 a = a >>> 32;
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109 }
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110 return a;
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111 }
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112
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113 @Test
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114 public void runl1() throws Throwable {
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115 runTest("testl1", 0x3344_5566_7788_99aaL);
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116 }
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117
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118 @Test
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119 public void runl1neg() throws Throwable {
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120 runTest("testl1", 0xf344_5566_7788_99aaL);
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121 }
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122
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123 public static long testl2(long arg) {
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124 long a = arg;
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125 for (long i = 0; i < 2; i++) {
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126 a = a << 32;
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127 }
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128 return a;
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129 }
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130
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131 @Test
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132 public void runl2() throws Throwable {
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133 runTest("testl2", 0x3344_5566_7788_99aaL);
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134 }
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135
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136 @Test
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137 public void runl2neg() throws Throwable {
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138 runTest("testl2", 0xf344_5566_7788_99aaL);
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139 }
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140 }