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test/compiler/7100757/Test7100757.java@dbb05f6d93c4 (annotated)

test/compiler/7100757/Test7100757.java

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

author

fzhinkin

date

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

changeset 6997

dbb05f6d93c4

parent 0

f90c822e73f8

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

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	/**
aoqi@0	26	* @test
aoqi@0	27	* @bug 7100757
aoqi@0	28	* @summary The BitSet.nextSetBit() produces incorrect result in 32bit VM on Sparc
aoqi@0	29	*
aoqi@0	30	* @run main/timeout=300 Test7100757
aoqi@0	31	*/
aoqi@0	32
aoqi@0	33	import java.util.*;
aoqi@0	34
aoqi@0	35	public class Test7100757 {
aoqi@0	36
aoqi@0	37	public static final int NBITS = 256;
aoqi@0	38
aoqi@0	39	public static void main(String[] args) {
aoqi@0	40
aoqi@0	41	BitSet bs = new BitSet(NBITS);
aoqi@0	42	Random rnd = new Random();
aoqi@0	43	long[] ra = new long[(NBITS+63)/64];
aoqi@0	44
aoqi@0	45	for(int l=0; l < 5000000; l++) {
aoqi@0	46
aoqi@0	47	for(int r = 0; r < ra.length; r++) {
aoqi@0	48	ra[r] = rnd.nextLong();
aoqi@0	49	}
aoqi@0	50	test(ra, bs);
aoqi@0	51	}
aoqi@0	52	}
aoqi@0	53
aoqi@0	54	static void test(long[] ra, BitSet bs) {
aoqi@0	55	bs.clear();
aoqi@0	56	int bits_set = 0;
aoqi@0	57	for(int i = 0, t = 0, b = 0; i < NBITS; i++) {
aoqi@0	58	long bit = 1L << b++;
aoqi@0	59	if((ra[t]&bit) != 0) {
aoqi@0	60	bs.set(i);
aoqi@0	61	bits_set++;
aoqi@0	62	}
aoqi@0	63	if(b == 64) {
aoqi@0	64	t++;
aoqi@0	65	b = 0;
aoqi@0	66	}
aoqi@0	67	}
aoqi@0	68	// Test Long.bitCount()
aoqi@0	69	int check_bits = bs.cardinality();
aoqi@0	70	if (check_bits != bits_set) {
aoqi@0	71	String bs_str = bs.toString();
aoqi@0	72	System.err.printf("cardinality bits: %d != %d bs: %s\n", check_bits, bits_set, bs_str);
aoqi@0	73	System.exit(97);
aoqi@0	74	}
aoqi@0	75	// Test Long.numberOfTrailingZeros()
aoqi@0	76	check_bits = 0;
aoqi@0	77	for (int i = bs.nextSetBit(0); i >= 0; i = bs.nextSetBit(i+1)) {
aoqi@0	78	check_bits++;
aoqi@0	79	}
aoqi@0	80	if (check_bits != bits_set) {
aoqi@0	81	String bs_str = bs.toString();
aoqi@0	82	System.err.printf("nextSetBit bits: %d != %d bs: %s\n", check_bits, bits_set, bs_str);
aoqi@0	83	System.exit(97);
aoqi@0	84	}
aoqi@0	85	// Test Long.numberOfLeadingZeros()
aoqi@0	86	for(int i = bs.length(); i > 0; i = bs.length()) {
aoqi@0	87	bs.clear(i-1);
aoqi@0	88	}
aoqi@0	89	// Test Long.bitCount()
aoqi@0	90	check_bits = bs.cardinality();
aoqi@0	91	if (check_bits != 0) {
aoqi@0	92	String bs_str = bs.toString();
aoqi@0	93	System.err.printf("after clear bits: %d != 0 bs: %s\n", check_bits, bs_str);
aoqi@0	94	System.exit(97);
aoqi@0	95	}
aoqi@0	96	}
aoqi@0	97
aoqi@0	98	};