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annotate test/compiler/6378821/Test6378821.java @ 2221:0aa3b4908911 jdk7-b131

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Merge
author cl
date Wed, 23 Feb 2011 15:48:46 -0800
parents c18cbe5936b8
children
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1 /*
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2 * Copyright (c) 2009, 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 6378821
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27 * @summary where available, bitCount() should use POPC on SPARC processors and AMD+10h
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28 *
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29 * @run main/othervm -Xcomp -XX:CompileOnly=Test6378821.fcomp Test6378821
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30 */
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31
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32 public class Test6378821 {
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33 static final int[] ia = new int[] { 0x12345678 };
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34 static final long[] la = new long[] { 0x12345678abcdefL };
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35
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36 public static void main(String [] args) {
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37 // Resolve the class and the method.
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38 Integer.bitCount(1);
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39 Long.bitCount(1);
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40
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41 sub(ia[0]);
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42 sub(la[0]);
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43 sub(ia);
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44 sub(la);
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45 }
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46
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47 static void check(int i, int expected, int result) {
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48 if (result != expected) {
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49 throw new InternalError("Wrong population count for " + i + ": " + result + " != " + expected);
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50 }
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51 }
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52
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53 static void check(long l, int expected, int result) {
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54 if (result != expected) {
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55 throw new InternalError("Wrong population count for " + l + ": " + result + " != " + expected);
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56 }
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57 }
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58
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59 static void sub(int i) { check(i, fint(i), fcomp(i) ); }
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60 static void sub(int[] ia) { check(ia[0], fint(ia), fcomp(ia)); }
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61 static void sub(long l) { check(l, fint(l), fcomp(l) ); }
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62 static void sub(long[] la) { check(la[0], fint(la), fcomp(la)); }
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63
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64 static int fint (int i) { return Integer.bitCount(i); }
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65 static int fcomp(int i) { return Integer.bitCount(i); }
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66
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67 static int fint (int[] ia) { return Integer.bitCount(ia[0]); }
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68 static int fcomp(int[] ia) { return Integer.bitCount(ia[0]); }
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69
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70 static int fint (long l) { return Long.bitCount(l); }
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71 static int fcomp(long l) { return Long.bitCount(l); }
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72
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73 static int fint (long[] la) { return Long.bitCount(la[0]); }
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74 static int fcomp(long[] la) { return Long.bitCount(la[0]); }
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75 }