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  *
  29  * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement
  30  *                   -XX:TieredStopAtLevel=3
  31  *                   compiler.profiling.TestMethodHandleInvokesIntrinsic
  32  *
  33  */
  34 
  35 package compiler.profiling;
  36 
  37 import java.lang.invoke.MethodHandle;
  38 import java.lang.invoke.MethodHandles;
  39 import java.lang.invoke.MethodType;
  40 
  41 public class TestMethodHandleInvokesIntrinsic {
  42 
  43     static final MethodHandle mh_nanoTime;
  44     static final MethodHandle mh_getClass;
  45     static {
  46         MethodHandles.Lookup lookup = MethodHandles.lookup();
  47         MethodType mt = MethodType.methodType(long.class);
  48         MethodHandle MH = null;
  49         try {
  50             MH = lookup.findStatic(System.class, "nanoTime", mt);
  51         } catch(NoSuchMethodException nsme) {
  52             nsme.printStackTrace();
  53             throw new RuntimeException("TEST FAILED", nsme);
  54         } catch(IllegalAccessException iae) {
  55             iae.printStackTrace();
  56             throw new RuntimeException("TEST FAILED", iae);
  57         }
  58         mh_nanoTime = MH;
  59 
  60         mt = MethodType.methodType(Class.class);
  61         MH = null;
  62         try {
  63             MH = lookup.findVirtual(Object.class, "getClass", mt);
  64         } catch(NoSuchMethodException nsme) {
  65             nsme.printStackTrace();
  66             throw new RuntimeException("TEST FAILED", nsme);
  67         } catch(IllegalAccessException iae) {
  68             iae.printStackTrace();
  69             throw new RuntimeException("TEST FAILED", iae);
  70         }
  71         mh_getClass = MH;
  72     }
  73 
  74     static long m1() throws Throwable {
  75         return (long)mh_nanoTime.invokeExact();
  76     }
  77 
  78     static Class m2(Object o) throws Throwable {
  79         return (Class)mh_getClass.invokeExact(o);
  80     }
  81 
  82     static public void main(String[] args) {
  83         try {
  84             for (int i = 0; i < 20000; i++) {
  85                 m1();
  86             }
  87             TestMethodHandleInvokesIntrinsic o = new TestMethodHandleInvokesIntrinsic();
  88             for (int i = 0; i < 20000; i++) {
  89                 m2(o);
  90             }
  91         } catch(Throwable t) {
  92             System.out.println("Unexpected exception");
  93             t.printStackTrace();
  94             throw new RuntimeException("TEST FAILED", t);
  95         }
  96 
  97         System.out.println("TEST PASSED");
  98     }
  99 }