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test/compiler/6724218/Test.java@dbb05f6d93c4 (annotated)

test/compiler/6724218/Test.java

Mon, 28 Jul 2014 15:06:38 -0700

author

fzhinkin

date

Mon, 28 Jul 2014 15:06:38 -0700

changeset 6997

dbb05f6d93c4

parent 1907

c18cbe5936b8

child 6876

710a3c8b516e

permissions

-rw-r--r--

8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
Summary: call rtm_deopt() only if there were no compilation bailouts before.
Reviewed-by: kvn

kvn@682	1	/*
trims@1907	2	* Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
kvn@682	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
kvn@682	4	*
kvn@682	5	* This code is free software; you can redistribute it and/or modify it
kvn@682	6	* under the terms of the GNU General Public License version 2 only, as
kvn@682	7	* published by the Free Software Foundation.
kvn@682	8	*
kvn@682	9	* This code is distributed in the hope that it will be useful, but WITHOUT
kvn@682	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
kvn@682	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
kvn@682	12	* version 2 for more details (a copy is included in the LICENSE file that
kvn@682	13	* accompanied this code).
kvn@682	14	*
kvn@682	15	* You should have received a copy of the GNU General Public License version
kvn@682	16	* 2 along with this work; if not, write to the Free Software Foundation,
kvn@682	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
kvn@682	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
kvn@682	22	*/
kvn@682	23
kvn@682	24	/*
kvn@682	25	* @test
kvn@682	26	* @bug 6724218
kvn@682	27	* @summary Fix raise_LCA_above_marks() early termination
kvn@682	28	* @run main/othervm -Xbatch -XX:CompileCommand=exclude,Test.update Test
kvn@682	29	*/
kvn@682	30
kvn@682	31	public class Test {
kvn@682	32	Test next = null;
kvn@682	33	Object value = null;
kvn@682	34
kvn@682	35	static boolean _closed = false;
kvn@682	36	static int size = 0;
kvn@682	37	static Test list = null;
kvn@682	38	static int cache_size = 0;
kvn@682	39	static Test cache = null;
kvn@682	40
kvn@682	41	Object get(int i) {
kvn@682	42	Test t = list;
kvn@682	43	list = t.next;
kvn@682	44	size -= 1;
kvn@682	45	Object o = t.value;
kvn@682	46	if (i > 0) {
kvn@682	47	t.next = cache;
kvn@682	48	t.value = null;
kvn@682	49	cache = t;
kvn@682	50	cache_size = +1;
kvn@682	51	}
kvn@682	52	return o;
kvn@682	53	}
kvn@682	54
kvn@682	55	void update() {
kvn@682	56	// Exclude compilation of this one.
kvn@682	57	if (size == 0) {
kvn@682	58	Test t;
kvn@682	59	if (cache_size > 0) {
kvn@682	60	t = cache;
kvn@682	61	cache = t.next;
kvn@682	62	cache_size = -1;
kvn@682	63	} else {
kvn@682	64	t = new Test();
kvn@682	65	}
kvn@682	66	t.value = new Object();
kvn@682	67	t.next = list;
kvn@682	68	list = t;
kvn@682	69	size += 1;
kvn@682	70	}
kvn@682	71	}
kvn@682	72
kvn@682	73	synchronized Object test(int i) {
kvn@682	74	while (true) {
kvn@682	75	if (_closed) {
kvn@682	76	return null;
kvn@682	77	} else if (size > 0) {
kvn@682	78	return get(i);
kvn@682	79	}
kvn@682	80	update();
kvn@682	81	}
kvn@682	82	}
kvn@682	83
kvn@682	84	public static void main(String argv[]) throws Exception {
kvn@682	85	Test t = new Test();
kvn@682	86	int lim = 500000;
kvn@682	87	Object o;
kvn@682	88	for (int j = 0; j < lim; j++) {
kvn@682	89	o = t.test(j&1);
kvn@682	90	if (o == null) {
kvn@682	91	throw new Exception("*** Failed on iteration " + j);
kvn@682	92	}
kvn@682	93	if ((j&1) == 0) {
kvn@682	94	t.update();
kvn@682	95	}
kvn@682	96	}
kvn@682	97	}
kvn@682	98	}