Mercurial > hg > truffle
annotate test/compiler/6896617/Test6896617.java @ 10988:cd54c7e92908
8015660: Test8009761.java "Failed: init recursive calls: 24. After deopt 25"
Summary: Windows reserves and only partially commits thread stack. For detecting more thread stack space for execution, Windows installs one-shot page as guard page just before the current commited edge. It will trigger STACK_OVERFLOW_EXCEPTION when lands on last 4 pages of thread stack space. StackYellowPages default value is 2 on Windows (plus 1 page of StackRedPages, 3 pages guarded by hotspot) so the exception happens one page before Yellow pages. Same route executed second time will have one more page brought in, this leads same execution with different stack depth(interpreter mode). We need match Windows settings so the stack overflow exception will not happen before Yellow pages.
Reviewed-by: dholmes
Contributed-by: andreas.schoesser@sap.com
author | minqi |
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date | Tue, 18 Jun 2013 09:08:35 -0700 |
parents | b30b3c2a0cf2 |
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rev | line source |
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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 |
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24 /* |
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25 * @test |
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26 * @bug 6896617 |
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27 * @summary Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() with SSE instructions on x86 |
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28 * @run main/othervm/timeout=1200 -Xbatch -Xmx256m Test6896617 |
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29 * |
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30 */ |
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31 |
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32 import java.util.*; |
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33 import java.nio.*; |
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34 import java.nio.charset.*; |
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35 |
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36 public class Test6896617 { |
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37 final static int SIZE = 256; |
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38 |
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39 public static void main(String[] args) { |
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40 String csn = "ISO-8859-1"; |
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41 Charset cs = Charset.forName(csn); |
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42 CharsetEncoder enc = cs.newEncoder(); |
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43 enc.onMalformedInput(CodingErrorAction.REPLACE) |
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44 .onUnmappableCharacter(CodingErrorAction.REPLACE); |
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45 CharsetDecoder dec = cs.newDecoder(); |
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46 dec.onMalformedInput(CodingErrorAction.REPLACE) |
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47 .onUnmappableCharacter(CodingErrorAction.REPLACE); |
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48 |
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49 byte repl = (byte)'?'; |
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50 enc.replaceWith(new byte[] { repl }); |
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51 |
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52 // Use internal API for tests. |
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53 sun.nio.cs.ArrayEncoder arrenc = (sun.nio.cs.ArrayEncoder)enc; |
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54 sun.nio.cs.ArrayDecoder arrdec = (sun.nio.cs.ArrayDecoder)dec; |
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55 |
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56 // Populate char[] with chars which can be encoded by ISO_8859_1 (<= 0xFF) |
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57 Random rnd = new Random(0); |
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58 int maxchar = 0xFF; |
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59 char[] a = new char[SIZE]; |
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60 byte[] b = new byte[SIZE]; |
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61 char[] at = new char[SIZE]; |
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62 byte[] bt = new byte[SIZE]; |
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63 for (int i = 0; i < SIZE; i++) { |
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64 char c = (char) rnd.nextInt(maxchar); |
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65 if (!enc.canEncode(c)) { |
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66 System.out.printf("Something wrong: can't encode c=%03x\n", (int)c); |
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67 System.exit(97); |
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68 } |
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69 a[i] = c; |
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70 b[i] = (byte)c; |
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71 at[i] = (char)-1; |
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72 bt[i] = (byte)-1; |
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73 } |
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74 if (arrenc.encode(a, 0, SIZE, bt) != SIZE || !Arrays.equals(b, bt)) { |
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75 System.out.println("Something wrong: ArrayEncoder.encode failed"); |
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76 System.exit(97); |
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77 } |
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78 if (arrdec.decode(b, 0, SIZE, at) != SIZE || !Arrays.equals(a, at)) { |
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79 System.out.println("Something wrong: ArrayDecoder.decode failed"); |
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80 System.exit(97); |
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81 } |
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82 for (int i = 0; i < SIZE; i++) { |
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83 at[i] = (char)-1; |
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84 bt[i] = (byte)-1; |
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85 } |
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86 |
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87 ByteBuffer bb = ByteBuffer.wrap(b); |
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88 CharBuffer ba = CharBuffer.wrap(a); |
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89 ByteBuffer bbt = ByteBuffer.wrap(bt); |
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90 CharBuffer bat = CharBuffer.wrap(at); |
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91 if (!enc.encode(ba, bbt, true).isUnderflow() || !Arrays.equals(b, bt)) { |
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92 System.out.println("Something wrong: Encoder.encode failed"); |
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93 System.exit(97); |
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94 } |
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95 if (!dec.decode(bb, bat, true).isUnderflow() || !Arrays.equals(a, at)) { |
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96 System.out.println("Something wrong: Decoder.decode failed"); |
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97 System.exit(97); |
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98 } |
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99 for (int i = 0; i < SIZE; i++) { |
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100 at[i] = (char)-1; |
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101 bt[i] = (byte)-1; |
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102 } |
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103 |
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104 // Warm up |
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105 boolean failed = false; |
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106 int result = 0; |
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107 for (int i = 0; i < 10000; i++) { |
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108 result += arrenc.encode(a, 0, SIZE, bt); |
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109 result -= arrdec.decode(b, 0, SIZE, at); |
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110 } |
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111 for (int i = 0; i < 10000; i++) { |
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112 result += arrenc.encode(a, 0, SIZE, bt); |
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113 result -= arrdec.decode(b, 0, SIZE, at); |
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114 } |
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115 for (int i = 0; i < 10000; i++) { |
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116 result += arrenc.encode(a, 0, SIZE, bt); |
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117 result -= arrdec.decode(b, 0, SIZE, at); |
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118 } |
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119 if (result != 0 || !Arrays.equals(b, bt) || !Arrays.equals(a, at)) { |
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120 failed = true; |
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121 System.out.println("Failed: ArrayEncoder.encode char[" + SIZE + "] and ArrayDecoder.decode byte[" + SIZE + "]"); |
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122 } |
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123 for (int i = 0; i < SIZE; i++) { |
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124 at[i] = (char)-1; |
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125 bt[i] = (byte)-1; |
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126 } |
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127 |
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128 boolean is_underflow = true; |
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129 for (int i = 0; i < 10000; i++) { |
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130 ba.clear(); bb.clear(); bat.clear(); bbt.clear(); |
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131 boolean enc_res = enc.encode(ba, bbt, true).isUnderflow(); |
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132 boolean dec_res = dec.decode(bb, bat, true).isUnderflow(); |
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133 is_underflow = is_underflow && enc_res && dec_res; |
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134 } |
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135 for (int i = 0; i < SIZE; i++) { |
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136 at[i] = (char)-1; |
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137 bt[i] = (byte)-1; |
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138 } |
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139 for (int i = 0; i < 10000; i++) { |
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140 ba.clear(); bb.clear(); bat.clear(); bbt.clear(); |
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141 boolean enc_res = enc.encode(ba, bbt, true).isUnderflow(); |
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142 boolean dec_res = dec.decode(bb, bat, true).isUnderflow(); |
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143 is_underflow = is_underflow && enc_res && dec_res; |
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144 } |
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145 for (int i = 0; i < SIZE; i++) { |
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146 at[i] = (char)-1; |
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147 bt[i] = (byte)-1; |
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148 } |
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149 for (int i = 0; i < 10000; i++) { |
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150 ba.clear(); bb.clear(); bat.clear(); bbt.clear(); |
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151 boolean enc_res = enc.encode(ba, bbt, true).isUnderflow(); |
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152 boolean dec_res = dec.decode(bb, bat, true).isUnderflow(); |
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153 is_underflow = is_underflow && enc_res && dec_res; |
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154 } |
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155 if (!is_underflow || !Arrays.equals(b, bt) || !Arrays.equals(a, at)) { |
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156 failed = true; |
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157 System.out.println("Failed: Encoder.encode char[" + SIZE + "] and Decoder.decode byte[" + SIZE + "]"); |
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158 } |
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159 |
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160 // Test encoder with different source and destination sizes |
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161 System.out.println("Testing different source and destination sizes"); |
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162 for (int i = 1; i <= SIZE; i++) { |
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163 for (int j = 1; j <= SIZE; j++) { |
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164 bt = new byte[j]; |
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165 // very source's SIZE |
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166 result = arrenc.encode(a, 0, i, bt); |
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167 int l = Math.min(i, j); |
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168 if (result != l) { |
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169 failed = true; |
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170 System.out.println("Failed: encode char[" + i + "] to byte[" + j + "]: result = " + result + ", expected " + l); |
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171 } |
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172 for (int k = 0; k < l; k++) { |
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173 if (bt[k] != b[k]) { |
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174 failed = true; |
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175 System.out.println("Failed: encoded byte[" + k + "] (" + bt[k] + ") != " + b[k]); |
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176 } |
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177 } |
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178 // very source's offset |
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179 int sz = SIZE - i + 1; |
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180 result = arrenc.encode(a, i-1, sz, bt); |
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181 l = Math.min(sz, j); |
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182 if (result != l) { |
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183 failed = true; |
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184 System.out.println("Failed: encode char[" + sz + "] to byte[" + j + "]: result = " + result + ", expected " + l); |
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185 } |
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186 for (int k = 0; k < l; k++) { |
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187 if (bt[k] != b[i+k-1]) { |
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188 failed = true; |
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189 System.out.println("Failed: encoded byte[" + k + "] (" + bt[k] + ") != " + b[i+k-1]); |
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190 } |
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191 } |
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192 } |
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193 } |
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194 |
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195 // Test encoder with char > 0xFF |
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196 System.out.println("Testing big char"); |
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197 |
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198 byte orig = (byte)'A'; |
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199 bt = new byte[SIZE]; |
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200 for (int i = 1; i <= SIZE; i++) { |
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201 for (int j = 0; j < i; j++) { |
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202 a[j] += 0x100; |
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203 // make sure to replace a different byte |
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204 bt[j] = orig; |
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205 result = arrenc.encode(a, 0, i, bt); |
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206 if (result != i) { |
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207 failed = true; |
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208 System.out.println("Failed: encode char[" + i + "] to byte[" + i + "]: result = " + result + ", expected " + i); |
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209 } |
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210 if (bt[j] != repl) { |
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211 failed = true; |
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212 System.out.println("Failed: encoded replace byte[" + j + "] (" + bt[j] + ") != " + repl); |
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213 } |
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214 bt[j] = b[j]; // Restore to compare whole array |
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215 for (int k = 0; k < i; k++) { |
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216 if (bt[k] != b[k]) { |
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217 failed = true; |
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218 System.out.println("Failed: encoded byte[" + k + "] (" + bt[k] + ") != " + b[k]); |
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219 } |
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220 } |
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221 a[j] -= 0x100; // Restore |
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222 } |
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223 } |
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224 |
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225 // Test sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() performance. |
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226 |
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227 int itrs = Integer.getInteger("iterations", 1000000); |
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228 int size = Integer.getInteger("size", 256); |
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229 a = new char[size]; |
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230 b = new byte[size]; |
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231 bt = new byte[size]; |
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232 for (int i = 0; i < size; i++) { |
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233 char c = (char) rnd.nextInt(maxchar); |
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234 if (!enc.canEncode(c)) { |
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235 System.out.printf("Something wrong: can't encode c=%03x\n", (int)c); |
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236 System.exit(97); |
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237 } |
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238 a[i] = c; |
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239 b[i] = (byte)-1; |
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240 bt[i] = (byte)c; |
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241 } |
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242 ba = CharBuffer.wrap(a); |
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243 bb = ByteBuffer.wrap(b); |
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244 boolean enc_res = enc.encode(ba, bb, true).isUnderflow(); |
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245 if (!enc_res || !Arrays.equals(b, bt)) { |
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246 failed = true; |
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247 System.out.println("Failed 1: Encoder.encode char[" + size + "]"); |
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248 } |
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249 for (int i = 0; i < size; i++) { |
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250 b[i] = (byte)-1; |
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251 } |
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252 |
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253 // Make sure to recompile method if needed before performance run. |
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254 for (int i = 0; i < 10000; i++) { |
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255 ba.clear(); bb.clear(); |
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256 enc_res = enc_res && enc.encode(ba, bb, true).isUnderflow(); |
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257 } |
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258 for (int i = 0; i < size; i++) { |
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259 b[i] = (byte)-1; |
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260 } |
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261 for (int i = 0; i < 10000; i++) { |
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262 ba.clear(); bb.clear(); |
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263 enc_res = enc_res && enc.encode(ba, bb, true).isUnderflow(); |
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264 } |
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265 if (!enc_res || !Arrays.equals(b, bt)) { |
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266 failed = true; |
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267 System.out.println("Failed 2: Encoder.encode char[" + size + "]"); |
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268 } |
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269 for (int i = 0; i < size; i++) { |
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270 b[i] = (byte)-1; |
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271 } |
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272 |
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273 System.out.println("Testing ISO_8859_1$Encode.encodeArrayLoop() performance"); |
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274 long start = System.currentTimeMillis(); |
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275 for (int i = 0; i < itrs; i++) { |
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276 ba.clear(); bb.clear(); |
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277 enc_res = enc_res && enc.encode(ba, bb, true).isUnderflow(); |
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278 } |
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279 long end = System.currentTimeMillis(); |
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280 if (!enc_res || !Arrays.equals(b, bt)) { |
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281 failed = true; |
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282 System.out.println("Failed 3: Encoder.encode char[" + size + "]"); |
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283 } else { |
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284 System.out.println("size: " + size + " time: " + (end - start)); |
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285 } |
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286 |
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287 // Test sun.nio.cs.ISO_8859_1$Encode.encode() performance. |
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288 |
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289 // Make sure to recompile method if needed before performance run. |
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290 result = 0; |
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291 for (int i = 0; i < size; i++) { |
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292 b[i] = (byte)-1; |
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293 } |
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294 for (int i = 0; i < 10000; i++) { |
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295 result += arrenc.encode(a, 0, size, b); |
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296 } |
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297 for (int i = 0; i < size; i++) { |
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298 b[i] = (byte)-1; |
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299 } |
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300 for (int i = 0; i < 10000; i++) { |
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301 result += arrenc.encode(a, 0, size, b); |
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302 } |
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303 if (result != size*20000 || !Arrays.equals(b, bt)) { |
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304 failed = true; |
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305 System.out.println("Failed 1: ArrayEncoder.encode char[" + SIZE + "]"); |
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306 } |
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307 for (int i = 0; i < size; i++) { |
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308 b[i] = (byte)-1; |
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309 } |
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310 |
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311 System.out.println("Testing ISO_8859_1$Encode.encode() performance"); |
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312 result = 0; |
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313 start = System.currentTimeMillis(); |
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314 for (int i = 0; i < itrs; i++) { |
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315 result += arrenc.encode(a, 0, size, b); |
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316 } |
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317 end = System.currentTimeMillis(); |
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318 if (!Arrays.equals(b, bt)) { |
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319 failed = true; |
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320 System.out.println("Failed 2: ArrayEncoder.encode char[" + size + "]"); |
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321 } else { |
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322 System.out.println("size: " + size + " time: " + (end - start)); |
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323 } |
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324 |
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325 if (failed) { |
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326 System.out.println("FAILED"); |
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327 System.exit(97); |
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328 } |
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329 System.out.println("PASSED"); |
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330 } |
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331 } |