8166811: Missing memory fences between memory allocation and refinement
Summary: Refactored to have needed barrier
Reviewed-by: tschatzl, ehelin
/*
* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
* 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8067144
* @summary -XX:+TraceDeoptimization tries to print realloc'ed objects even when there are none
*
* @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement
* -XX:+IgnoreUnrecognizedVMOptions -XX:+TraceDeoptimization
* compiler.uncommontrap.TraceDeoptimizationNoRealloc
*/
package compiler.uncommontrap;
public class TraceDeoptimizationNoRealloc {
static void m(boolean some_condition) {
if (some_condition) {
return;
}
}
static public void main(String[] args) {
for (int i = 0; i < 20000; i++) {
m(false);
}
m(true);
}
}