Mercurial > jdk8-mips64-public > hotspot / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/compiler/6769124/TestDeoptInt6769124.java	Wed Apr 27 01:25:04 2016 +0800
     1.3 @@ -0,0 +1,56 @@
     1.4 +/*
     1.5 + * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.23 + * or visit www.oracle.com if you need additional information or have any
    1.24 + * questions.
    1.25 + *
    1.26 + */
    1.27 +
    1.28 +/**
    1.29 + * @test
    1.30 + * @bug 6769124
    1.31 + * @summary int value might not be correctly decoded on deopt with c1 on 64 bit
    1.32 + *
    1.33 + * @run main/othervm -Xcomp -XX:CompileOnly=TestDeoptInt6769124.m TestDeoptInt6769124
    1.34 + */
    1.35 +
    1.36 +public class TestDeoptInt6769124 {
    1.37 +
    1.38 +    static class A {
    1.39 +        volatile int vl;
    1.40 +        A(int v) {
    1.41 +            vl = v;
    1.42 +        }
    1.43 +    }
    1.44 +
    1.45 +    static void m(int b) {
    1.46 +        A a = new A(10);
    1.47 +        int c;
    1.48 +        c = b + a.vl; //accessing volatile field of class not loaded at compile time forces a deopt
    1.49 +        if(c != 20) {
    1.50 +            System.out.println("a (= " + a.vl + ") + b (= " + b + ") = c (= " + c + ") != 20");
    1.51 +            throw new InternalError();
    1.52 +        }
    1.53 +    }
    1.54 +
    1.55 +    public static void main(String[] args) {
    1.56 +        m(10);
    1.57 +    }
    1.58 +
    1.59 +}