| /* |
| * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| /** |
| * @test |
| * @bug 6992759 |
| * @summary Bad code generated for integer <= comparison, fails for Integer.MAX_VALUE |
| * |
| * @run main/timeout=240 compiler.c2.Test6992759 |
| */ |
| |
| package compiler.c2; |
| |
| public class Test6992759 { |
| |
| static final int N_TESTS = 1000000000; |
| |
| public static void main(String[] args) throws Exception { |
| |
| /* |
| * If MAX_VALUE is changed to MAX_VALUE - 1 below, the test passes |
| * because (apparently) bad code is only generated when comparing |
| * <= MAX_VALUE in the doTest method. |
| */ |
| Test6992759 test = new Test6992759(); |
| for (int i = 0; i < N_TESTS; i += 1) { |
| test.doTest(10, Integer.MAX_VALUE, i); |
| //test.doTest(10, Integer.MAX_VALUE - 1, i); |
| } |
| System.out.println("No failure"); |
| } |
| |
| void doTest(int expected, int max, int i) { |
| int counted; |
| for (counted = 0; |
| (counted <= max) && (counted < expected); |
| counted += 1) { |
| } |
| if (counted != expected) { |
| throw new RuntimeException("Failed test iteration=" + i + |
| " max=" + max + |
| " counted=" + counted + |
| " expected=" + expected); |
| } |
| } |
| } |
| |