kvn@2877: /*
kvn@2877:  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
kvn@2877:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
kvn@2877:  *
kvn@2877:  * This code is free software; you can redistribute it and/or modify it
kvn@2877:  * under the terms of the GNU General Public License version 2 only, as
kvn@2877:  * published by the Free Software Foundation.
kvn@2877:  *
kvn@2877:  * This code is distributed in the hope that it will be useful, but WITHOUT
kvn@2877:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
kvn@2877:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
kvn@2877:  * version 2 for more details (a copy is included in the LICENSE file that
kvn@2877:  * accompanied this code).
kvn@2877:  *
kvn@2877:  * You should have received a copy of the GNU General Public License version
kvn@2877:  * 2 along with this work; if not, write to the Free Software Foundation,
kvn@2877:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
kvn@2877:  *
kvn@2877:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
kvn@2877:  * or visit www.oracle.com if you need additional information or have any
kvn@2877:  * questions.
kvn@2877:  *
kvn@2877:  */
kvn@2877: 
kvn@2877: /**
kvn@2877:  * @test
kvn@2877:  * @bug 6992759
kvn@2877:  * @summary Bad code generated for integer <= comparison, fails for Integer.MAX_VALUE
kvn@2877:  *
kvn@2877:  * @run main Test6992759
kvn@2877:  */
kvn@2877: 
kvn@2877: public class Test6992759 {
kvn@2877: 
kvn@2877:     static final int N_TESTS = 1000000000;
kvn@2877: 
kvn@2877:     public static void main(String[] args) throws Exception {
kvn@2877: 
kvn@2877:         /*
kvn@2877:          * If MAX_VALUE is changed to MAX_VALUE - 1 below, the test passes
kvn@2877:          * because (apparently) bad code is only generated when comparing
kvn@2877:          * <= MAX_VALUE in the doTest method.
kvn@2877:          */
kvn@2877:         Test6992759 test = new Test6992759();
kvn@2877:         for (int i = 0; i < N_TESTS; i += 1) {
kvn@2877:             test.doTest(10, Integer.MAX_VALUE, i);
kvn@2877:             //test.doTest(10, Integer.MAX_VALUE - 1, i);
kvn@2877:         }
kvn@2877:         System.out.println("No failure");
kvn@2877:     }
kvn@2877: 
kvn@2877:     void doTest(int expected, int max, int i) {
kvn@2877:         int counted;
kvn@2877:         for (counted = 0;
kvn@2877:              (counted <= max) && (counted < expected);
kvn@2877:              counted += 1) {
kvn@2877:         }
kvn@2877:         if (counted != expected) {
kvn@2877:             throw new RuntimeException("Failed test iteration=" + i +
kvn@2877:                                        " max=" + max +
kvn@2877:                                        " counted=" + counted +
kvn@2877:                                        " expected=" + expected);
kvn@2877:         }
kvn@2877:     }
kvn@2877: }
kvn@2877: