jdk8-mips64-public/hotspot: test/compiler/7100757/Test7100757.java@dbb05f6d93c4

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

     1 /*

     2  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 /**

    26  * @test

    27  * @bug 7100757

    28  * @summary The BitSet.nextSetBit() produces incorrect result in 32bit VM on Sparc

    29  *

    30  * @run main/timeout=300 Test7100757

    31  */

    33 import java.util.*;

    35 public class Test7100757 {

    37   public static final int NBITS = 256;

    39   public static void main(String[] args) {

    41     BitSet bs = new BitSet(NBITS);

    42     Random rnd = new Random();

    43     long[] ra = new long[(NBITS+63)/64];

    45     for(int l=0; l < 5000000; l++) {

    47       for(int r = 0; r < ra.length; r++) {

    48         ra[r] = rnd.nextLong();

    49       }

    50       test(ra, bs);

    51     }

    52   }

    54   static void test(long[] ra, BitSet bs) {

    55       bs.clear();

    56       int bits_set = 0;

    57       for(int i = 0, t = 0, b = 0; i < NBITS; i++) {

    58         long bit = 1L << b++;

    59         if((ra[t]&bit) != 0) {

    60           bs.set(i);

    61           bits_set++;

    62         }

    63         if(b == 64) {

    64           t++;

    65           b = 0;

    66         }

    67       }

    68       // Test Long.bitCount()

    69       int check_bits = bs.cardinality();

    70       if (check_bits != bits_set) {

    71         String bs_str = bs.toString();

    72         System.err.printf("cardinality bits: %d != %d  bs: %s\n", check_bits, bits_set, bs_str);

    73         System.exit(97);

    74       }

    75       // Test Long.numberOfTrailingZeros()

    76       check_bits = 0;

    77       for (int i = bs.nextSetBit(0); i >= 0; i = bs.nextSetBit(i+1)) {

    78         check_bits++;

    79       }

    80       if (check_bits != bits_set) {

    81         String bs_str = bs.toString();

    82         System.err.printf("nextSetBit bits: %d != %d  bs: %s\n", check_bits, bits_set, bs_str);

    83         System.exit(97);

    84       }

    85       // Test Long.numberOfLeadingZeros()

    86       for(int i = bs.length(); i > 0; i = bs.length()) {

    87         bs.clear(i-1);

    88       }

    89       // Test Long.bitCount()

    90       check_bits = bs.cardinality();

    91       if (check_bits != 0) {

    92         String bs_str = bs.toString();

    93         System.err.printf("after clear bits: %d != 0  bs: %s\n", check_bits, bs_str);

    94         System.exit(97);

    95       }

    96   }

    98 };

Mercurial > jdk8-mips64-public > hotspot / file revision

test/compiler/7100757/Test7100757.java@dbb05f6d93c4

test/compiler/7100757/Test7100757.java