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test/compiler/6636138/Test2.java@dbb05f6d93c4 (annotated)

test/compiler/6636138/Test2.java

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

author

fzhinkin

date

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

changeset 6997

dbb05f6d93c4

parent 6198

55fb97c4c58d

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

cfang@1102	1	/*
mikael@6198	2	* Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
cfang@1102	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
cfang@1102	4	*
cfang@1102	5	* This code is free software; you can redistribute it and/or modify it
cfang@1102	6	* under the terms of the GNU General Public License version 2 only, as
cfang@1102	7	* published by the Free Software Foundation.
cfang@1102	8	*
cfang@1102	9	* This code is distributed in the hope that it will be useful, but WITHOUT
cfang@1102	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
cfang@1102	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
cfang@1102	12	* version 2 for more details (a copy is included in the LICENSE file that
cfang@1102	13	* accompanied this code).
cfang@1102	14	*
cfang@1102	15	* You should have received a copy of the GNU General Public License version
cfang@1102	16	* 2 along with this work; if not, write to the Free Software Foundation,
cfang@1102	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
cfang@1102	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.
cfang@1102	22	*/
cfang@1102	23
cfang@1102	24	/**
cfang@1102	25	* @test
cfang@1102	26	* @bug 6636138
cfang@1102	27	* @summary SuperWord::co_locate_pack(Node_List* p) generates memory graph that leads to memory order violation.
cfang@1102	28	*
collins@4684	29	* @run main/othervm -Xbatch -XX:CompileOnly=Test2.shift Test2
cfang@1102	30	*/
cfang@1102	31
twisti@1212	32	public class Test2 {
cfang@1102	33
cfang@1102	34	public static void init(int src[]) {
cfang@1102	35	// Initialize the array
cfang@1102	36	for (int i = 0; i < src.length; i++)
cfang@1102	37	src[i] = i;
cfang@1102	38	}
cfang@1102	39
cfang@1102	40	public static void shift(int src[]) {
cfang@1102	41	//left-shift the array
cfang@1102	42	for (int i = src.length-1; i > 0; i--){
cfang@1102	43	int tmp = src[i];
cfang@1102	44	src[i] = src[i-1];
cfang@1102	45	src[i-1] = tmp;
cfang@1102	46	}
cfang@1102	47	}
cfang@1102	48
cfang@1102	49	public static void verify(int src[]) {
cfang@1102	50	for (int i = 0; i < src.length; i++){
cfang@1102	51	int value = (i-1 + src.length)%src.length; // correct value after shifting
cfang@1102	52	if (src[i] != value) {
cfang@1102	53	System.out.println("Error: src["+i+"] should be "+ value + " instead of " + src[i]);
cfang@1387	54	System.exit(97);
cfang@1102	55	}
cfang@1102	56	}
cfang@1102	57	}
cfang@1102	58
cfang@1102	59	public static void test() {
cfang@1102	60	int[] src = new int[10];
cfang@1102	61	init(src);
cfang@1102	62	shift(src);
cfang@1102	63	verify(src);
cfang@1102	64	}
cfang@1102	65
cfang@1102	66	public static void main(String[] args) {
cfang@1102	67	for (int i=0; i< 2000; i++)
cfang@1102	68	test();
cfang@1102	69	}
cfang@1102	70	}