test/jdk/vm/jit/BadLogicCode.java
author amlu
Mon, 05 Feb 2018 11:12:09 +0800
changeset 48742 364944ba4e2f
permissions -rw-r--r--
8195981: Move some tests to OpenJDK for jdk_lang test group Reviewed-by: alanb, mchung
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/*
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 * Copyright (c) 2018, 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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 * @test
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 * @bug 4157675
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 * @summary Solaris JIT generates bad code for logic expression
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 * @author Tom Rodriguez
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 */
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public class BadLogicCode {
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    static int values[] = {Integer.MIN_VALUE, -1, 0, 1, 4, 16, 31,
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                           32, 33, Integer.MAX_VALUE};
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    static char b[][] = {null, new char[32]};
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    static boolean nullPtr = false, indexOutBnd = false;
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    static boolean indexOutBnd2 = false;
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    public static void main(String args[]) throws Exception{
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        int i = 1, j = 4, k = 9;
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        nullPtr = (b[i] == null);
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        int bufLen = nullPtr ? 0 : b[i].length;
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        indexOutBnd = (values[j] < 0)
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            || (values[j] > bufLen)
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            || (values[k] < 0)
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            || ((values[j] + values[k]) > bufLen)
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            ||((values[j] + values[k]) < 0);
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        indexOutBnd2 = (values[j] < 0);
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        indexOutBnd2 = indexOutBnd2 || (values[j] > bufLen);
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        indexOutBnd2 = indexOutBnd2 || (values[k] < 0);
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        indexOutBnd2 = indexOutBnd2 || ((values[j] + values[k]) > bufLen);
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        indexOutBnd2 = indexOutBnd2 ||((values[j] + values[k]) < 0);
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        if (indexOutBnd != indexOutBnd2)
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            throw new Error("logic expression generate different results");
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    }
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}