Mercurial > hg > graal-compiler
annotate test/compiler/6885584/Test6885584.java @ 1009:03b336640699
6885584: A particular class structure causes large allocation spike for jit
Reviewed-by: kvn
author | never |
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date | Wed, 07 Oct 2009 15:38:37 -0700 |
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children | c18cbe5936b8 |
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1 /* |
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2 * Copyright 2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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20 * CA 95054 USA or visit www.sun.com if you need additional information or |
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21 * have any questions. |
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22 * |
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23 */ |
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24 |
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25 /** |
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26 * @test |
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27 * @bug 6885584 |
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28 * @summary A particular class structure causes large allocation spike for jit |
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29 * |
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30 * @run main/othervm -Xbatch Test6885584 |
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31 */ |
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32 |
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33 |
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34 |
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35 public class Test6885584 { |
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36 static private int i1; |
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37 static private int i2; |
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38 static private int i3; |
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39 |
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40 static int limit = Integer.MAX_VALUE - 8; |
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41 |
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42 public static void main(String args[]) { |
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43 // Run long enough to trigger an OSR |
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44 for(int j = 200000; j != 0; j--) { |
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45 } |
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46 |
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47 // This must reference a field |
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48 i1 = i2; |
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49 |
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50 // The resource leak is roughly proportional to this initial value |
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51 for(int k = Integer.MAX_VALUE - 1; k != 0; k--) { |
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52 // Make sure the body does some work |
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53 if(i2 > i3)i1 = k; |
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54 if (k <= limit) break; |
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55 } |
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56 } |
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57 |
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58 } |