jdk8-mips64-public/hotspot: test/compiler/EscapeAnalysis/TestUnsafePutAddressNullObjMustNotEscape.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 2014 SAP AG.  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  */

    24 /**

    25  * @test

    26  * @bug 8038048

    27  * @summary assert(null_obj->escape_state() == PointsToNode::NoEscape,etc)

    28  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+DoEscapeAnalysis -XX:-TieredCompilation -Xbatch TestUnsafePutAddressNullObjMustNotEscape

    29  * @author Richard Reingruber richard DOT reingruber AT sap DOT com

    30  */

    32 import java.lang.reflect.Field;

    33 import sun.misc.Unsafe;

    35 public class TestUnsafePutAddressNullObjMustNotEscape {

    37     public static Unsafe usafe;

    38     public static long mem;

    39     public static long checksum;

    41     public static void main(String[] args) throws Exception {

    42         System.out.println("EXECUTING test.");

    44         {

    45             System.out.println("Acquiring sun.misc.Unsafe.theUnsafe using reflection.");

    46             getUnsafe();

    47             System.out.println("Allocating raw memory.");

    48             mem = (usafe.allocateMemory(1024) + 8L) & ~7L;

    49             System.out.println("Triggering JIT compilation of the test method");

    50             triggerJitCompilationOfTestMethod();

    51         }

    53         System.out.println("SUCCESSFULLY passed test.");

    54     }

    56     public static void triggerJitCompilationOfTestMethod() {

    57         long sum = 0;

    58         for (int ii = 50000; ii >= 0; ii--) {

    59             sum = testMethod();

    60         }

    61         checksum = sum;

    62     }

    64     public static class IDGen {

    65         private static long id;

    66         public long nextId() {

    67             return id++;

    68         }

    69     }

    71     public static long testMethod() {

    72         // dummy alloc to trigger escape analysis

    73         IDGen gen = new IDGen();

    74         // StoreP of null_obj to raw mem triggers assertion in escape analysis

    75         usafe.putAddress(mem, 0L);

    76         return gen.nextId();

    77     }

    79     private static void getUnsafe() throws Exception {

    80         Field field = sun.misc.Unsafe.class.getDeclaredField("theUnsafe");

    81         field.setAccessible(true);

    82         usafe = (sun.misc.Unsafe) field.get(null);

    83     }

    84 }

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

test/compiler/EscapeAnalysis/TestUnsafePutAddressNullObjMustNotEscape.java@dbb05f6d93c4

test/compiler/EscapeAnalysis/TestUnsafePutAddressNullObjMustNotEscape.java