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test/compiler/6826736/Test.java@dbb05f6d93c4 (annotated)

test/compiler/6826736/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 6315

231051bff068

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@1293	1	/*
trims@1907	2	* Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
kvn@1293	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
kvn@1293	4	*
kvn@1293	5	* This code is free software; you can redistribute it and/or modify it
kvn@1293	6	* under the terms of the GNU General Public License version 2 only, as
kvn@1293	7	* published by the Free Software Foundation.
kvn@1293	8	*
kvn@1293	9	* This code is distributed in the hope that it will be useful, but WITHOUT
kvn@1293	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
kvn@1293	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
kvn@1293	12	* version 2 for more details (a copy is included in the LICENSE file that
kvn@1293	13	* accompanied this code).
kvn@1293	14	*
kvn@1293	15	* You should have received a copy of the GNU General Public License version
kvn@1293	16	* 2 along with this work; if not, write to the Free Software Foundation,
kvn@1293	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
kvn@1293	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@1293	22	*
kvn@1293	23	*/
kvn@1293	24
kvn@1293	25	/**
kvn@1293	26	* @test
kvn@1293	27	* @bug 6826736
kvn@1293	28	* @summary CMS: core dump with -XX:+UseCompressedOops
kvn@1293	29	*
anoll@6315	30	* @run main/othervm/timeout=600 -XX:+IgnoreUnrecognizedVMOptions -Xbatch -XX:+ScavengeALot -XX:+UseCompressedOops -XX:HeapBaseMinAddress=32g -XX:CompileThreshold=100 -XX:CompileOnly=Test.test -XX:-BlockLayoutRotateLoops -XX:LoopUnrollLimit=0 -Xmx256m -XX:ParallelGCThreads=4 Test
kvn@1293	31	*/
kvn@1293	32
kvn@1293	33	public class Test {
kvn@1293	34	int[] arr;
kvn@1293	35	int[] arr2;
kvn@1293	36	int test(int r) {
kvn@1293	37	for (int i = 0; i < 100; i++) {
kvn@1293	38	for (int j = i; j < 100; j++) {
kvn@1293	39	int a = 0;
kvn@1293	40	for (long k = 0; k < 100; k++) {
kvn@1293	41	a += k;
kvn@1293	42	}
kvn@1293	43	if (arr != null)
kvn@1293	44	a = arr[j];
kvn@1293	45	r += a;
kvn@1293	46	}
kvn@1293	47	}
kvn@1293	48	return r;
kvn@1293	49	}
kvn@1293	50
kvn@1293	51	public static void main(String[] args) {
kvn@1293	52	int r = 0;
kvn@1293	53	Test t = new Test();
kvn@1293	54	for (int i = 0; i < 100; i++) {
kvn@1293	55	t.arr = new int[100];
kvn@1293	56	r = t.test(r);
kvn@1293	57	}
kvn@1293	58	System.out.println("Warmup 1 is done.");
kvn@1293	59	for (int i = 0; i < 100; i++) {
kvn@1293	60	t.arr = null;
kvn@1293	61	r = t.test(r);
kvn@1293	62	}
kvn@1293	63	System.out.println("Warmup 2 is done.");
kvn@1293	64	for (int i = 0; i < 100; i++) {
kvn@1293	65	t.arr = new int[100];
kvn@1293	66	r = t.test(r);
kvn@1293	67	}
kvn@1293	68	System.out.println("Warmup is done.");
kvn@1293	69	for (int i = 0; i < 100; i++) {
kvn@1293	70	t.arr = new int[1000000];
kvn@1293	71	t.arr = null;
kvn@1293	72	r = t.test(r);
kvn@1293	73	}
kvn@1293	74	}
kvn@1293	75	}