104 lines
2.9 KiB
Java
104 lines
2.9 KiB
Java
/*
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* Copyright (c) 2008, 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 6724218
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* @summary Fix raise_LCA_above_marks() early termination
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*
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* @run main/othervm -Xbatch
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* -XX:CompileCommand=exclude,compiler.c2.Test6724218::update
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* compiler.c2.Test6724218
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*/
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package compiler.c2;
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public class Test6724218 {
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Test6724218 next = null;
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Object value = null;
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static boolean _closed = false;
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static int size = 0;
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static Test6724218 list = null;
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static int cache_size = 0;
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static Test6724218 cache = null;
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Object get(int i) {
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Test6724218 t = list;
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list = t.next;
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size -= 1;
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Object o = t.value;
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if (i > 0) {
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t.next = cache;
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t.value = null;
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cache = t;
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cache_size = +1;
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}
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return o;
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}
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void update() {
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// Exclude compilation of this one.
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if (size == 0) {
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Test6724218 t;
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if (cache_size > 0) {
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t = cache;
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cache = t.next;
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cache_size = -1;
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} else {
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t = new Test6724218();
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}
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t.value = new Object();
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t.next = list;
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list = t;
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size += 1;
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}
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}
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synchronized Object test(int i) {
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while (true) {
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if (_closed) {
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return null;
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} else if (size > 0) {
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return get(i);
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}
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update();
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}
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}
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public static void main(String argv[]) throws Exception {
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Test6724218 t = new Test6724218();
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int lim = 500000;
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Object o;
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for (int j = 0; j < lim; j++) {
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o = t.test(j&1);
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if (o == null) {
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throw new Exception("*** Failed on iteration " + j);
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}
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if ((j&1) == 0) {
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t.update();
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}
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}
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}
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}
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