1 /*

     2  * Copyright (c) 2014, 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 

    24 /*

    25  * @test

    26  * @bug 8041458

    27  * @summary profiling of arguments in C1 at MethodHandle invoke of intrinsic tries to profile popped argument.

    28  * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:TieredStopAtLevel=3 TestMethodHandleInvokesIntrinsic

    29  *

    30  */

    31 

    32 import java.lang.invoke.*;

    33 

    34 public class TestMethodHandleInvokesIntrinsic {

    35 

    36     static final MethodHandle mh_nanoTime;

    37     static final MethodHandle mh_getClass;

    38     static {

    39         MethodHandles.Lookup lookup = MethodHandles.lookup();

    40         MethodType mt = MethodType.methodType(long.class);

    41         MethodHandle MH = null;

    42         try {

    43             MH = lookup.findStatic(System.class, "nanoTime", mt);

    44         } catch(NoSuchMethodException nsme) {

    45             nsme.printStackTrace();

    46             throw new RuntimeException("TEST FAILED", nsme);

    47         } catch(IllegalAccessException iae) {

    48             iae.printStackTrace();

    49             throw new RuntimeException("TEST FAILED", iae);

    50         }

    51         mh_nanoTime = MH;

    52 

    53         mt = MethodType.methodType(Class.class);

    54         MH = null;

    55         try {

    56             MH = lookup.findVirtual(Object.class, "getClass", mt);

    57         } catch(NoSuchMethodException nsme) {

    58             nsme.printStackTrace();

    59             throw new RuntimeException("TEST FAILED", nsme);

    60         } catch(IllegalAccessException iae) {

    61             iae.printStackTrace();

    62             throw new RuntimeException("TEST FAILED", iae);

    63         }

    64         mh_getClass = MH;

    65     }

    66 

    67     static long m1() throws Throwable {

    68         return (long)mh_nanoTime.invokeExact();

    69     }

    70 

    71     static Class m2(Object o) throws Throwable {

    72         return (Class)mh_getClass.invokeExact(o);

    73     }

    74 

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

    76         try {

    77             for (int i = 0; i < 20000; i++) {

    78                 m1();

    79             }

    80             TestMethodHandleInvokesIntrinsic o = new TestMethodHandleInvokesIntrinsic();

    81             for (int i = 0; i < 20000; i++) {

    82                 m2(o);

    83             }

    84         } catch(Throwable t) {

    85             System.out.println("Unexpected exception");

    86             t.printStackTrace();

    87             throw new RuntimeException("TEST FAILED", t);

    88         }

    89 

    90         System.out.println("TEST PASSED");

    91     }

    92 }