hotspot/test/compiler/c2/8007294/Test8007294.java
author roland
Mon, 18 Jan 2016 21:34:28 +0100
changeset 35578 33d25acfb1fd
parent 27699 9913b19c0948
permissions -rw-r--r--
8146999: hotspot/test/compiler/c2/8007294/Test8007294.java test nightly failure Summary: uncast() fails with CheckCastPP Reviewed-by: kvn, thartmann
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/*
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 * Copyright (c) 2013, 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 8007294
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 * @bug 8146999
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 * @summary ReduceFieldZeroing doesn't check for dependent load and can lead to incorrect execution
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 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+AlwaysIncrementalInline -XX:-UseOnStackReplacement -XX:-BackgroundCompilation Test8007294
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 *
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 */
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public class Test8007294 {
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    int i1;
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    int i2;
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    Test8007294(int i1, int i2) {
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        this.i1 = i1;
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        this.i2 = i2;
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    }
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    static int m(int v) {
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        return v;
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    }
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    static Test8007294 test1() {
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        Test8007294 obj = new Test8007294(10, 100);
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        int v1 = obj.i1;
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        int v3 = m(v1);
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        int v2 = obj.i2;
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        obj.i2 = v3;
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        obj.i1 = v2;
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        return obj;
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    }
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    static int test2(int i) {
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        int j = 0;
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        if (i > 0) {
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            j = 1;
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        }
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        int[] arr = new int[10];
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        arr[0] = 1;
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        arr[1] = 2;
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        int v1 = arr[j];
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        arr[0] = 3;
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        arr[1] = 4;
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        return v1;
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    }
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    static public void main(String[] args) {
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        boolean failed = false;
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        for (int i = 0; i < 20000; i++) {
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            Test8007294 obj = test1();
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            if (obj.i1 != 100 || obj.i2 != 10) {
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                System.out.println("FAILED test1 obj.i1 = " + obj.i1 +", obj.i2 = " + obj.i2);
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                failed = true;
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                break;
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            }
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        }
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        for (int i = 0; i < 20000; i++) {
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            test2(0);  // pollute profile
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            int res = test2(1);
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            if (res != 2) {
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                System.out.println("FAILED test2 = " + res);
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                failed = true;
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                break;
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            }
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        }
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        if (failed) {
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            System.exit(97);
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        } else {
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            System.out.println("PASSED");
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        }
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    }
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}