3345
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1 /*
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2 * Copyright (c) 2011, 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 /**
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26 * @test
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27 * @bug 6992759
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28 * @summary Bad code generated for integer <= comparison, fails for Integer.MAX_VALUE
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29 *
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30 * @run main Test6992759
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31 */
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32
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33 public class Test6992759 {
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34
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35 static final int N_TESTS = 1000000000;
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36
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37 public static void main(String[] args) throws Exception {
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38
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39 /*
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40 * If MAX_VALUE is changed to MAX_VALUE - 1 below, the test passes
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41 * because (apparently) bad code is only generated when comparing
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42 * <= MAX_VALUE in the doTest method.
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43 */
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44 Test6992759 test = new Test6992759();
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45 for (int i = 0; i < N_TESTS; i += 1) {
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46 test.doTest(10, Integer.MAX_VALUE, i);
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47 //test.doTest(10, Integer.MAX_VALUE - 1, i);
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48 }
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49 System.out.println("No failure");
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50 }
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51
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52 void doTest(int expected, int max, int i) {
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53 int counted;
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54 for (counted = 0;
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55 (counted <= max) && (counted < expected);
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56 counted += 1) {
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57 }
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58 if (counted != expected) {
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59 throw new RuntimeException("Failed test iteration=" + i +
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60 " max=" + max +
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61 " counted=" + counted +
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62 " expected=" + expected);
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63 }
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64 }
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65 }
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66
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