60 lines
1.8 KiB
Java
60 lines
1.8 KiB
Java
/*
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* Copyright (c) 2009, 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 6769124
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* @summary int value might not be correctly decoded on deopt with c1 on 64 bit
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*
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* @run main/othervm -Xcomp
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* -XX:CompileCommand=compileonly,compiler.c1.TestDeoptInt::m
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* compiler.c1.TestDeoptInt
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*/
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package compiler.c1;
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public class TestDeoptInt {
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static class A {
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volatile int vl;
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A(int v) {
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vl = v;
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}
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}
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static void m(int b) {
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A a = new A(10);
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int c;
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c = b + a.vl; //accessing volatile field of class not loaded at compile time forces a deopt
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if(c != 20) {
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System.out.println("a (= " + a.vl + ") + b (= " + b + ") = c (= " + c + ") != 20");
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throw new InternalError();
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}
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}
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public static void main(String[] args) {
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m(10);
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}
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}
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