hotspot/test/compiler/5091921/Test6753639.java
author kvn
Wed, 04 May 2011 13:12:42 -0700
changeset 9446 748a37b25d10
permissions -rw-r--r--
5091921: Sign flip issues in loop optimizer Summary: Fix integer overflow problem in the code generated by loop optimizer. Reviewed-by: never
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/*
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 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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/**
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 * @test
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 * @bug 6753639
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 * @summary Strange optimisation in for loop with cyclic integer condition
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 *
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 * @run main/othervm -Xbatch Test6753639
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 */
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public class Test6753639 {
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    public static void main(String[] args) throws InterruptedException {
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        int END = Integer.MAX_VALUE;
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        int count = 0;
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        for(int i = Integer.MAX_VALUE - 5; i <= END; i++) {
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            count++;
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            if (count > 100000) {
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                System.out.println("Passed");
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                System.exit(95);
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            }
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        }
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        System.out.println("broken " + count);
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        System.out.println("FAILED");
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        System.exit(97);
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    }
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}
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