test/hotspot/jtreg/compiler/c2/Test6916644.java
author shade
Fri, 08 Jun 2018 11:41:43 +0200
changeset 50463 929cd9246fc9
parent 47216 71c04702a3d5
permissions -rw-r--r--
8204479: Bitwise AND on byte value sometimes produces wrong result Reviewed-by: kvn, thartmann

/*
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 * 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.
 *
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/**
 * @test
 * @bug 6916644
 * @summary C2 compiler crash on x86
 *
 * @run main/othervm -Xcomp
 *      -XX:CompileCommand=compileonly,compiler.c2.Test6916644::test
 *      compiler.c2.Test6916644
 */

package compiler.c2;

public class Test6916644 {
    static int result;
    static int i1;
    static int i2;

    static public void test(double d) {
        result = (d <= 0.0D) ? i1 : i2;
    }

    public static void main(String[] args) {
        for (int i = 0; i < 100000; i++) {
            // use an alternating value so the test doesn't always go
            // the same direction.  Otherwise we won't transform it
            // into a cmove.
            test(i & 1);
        }
    }
}