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 8055153
  27  * @summary missing control on LoadRange and LoadKlass when array copy macro node is expanded
  28  *
  29  * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:-TieredCompilation
  30  *                   compiler.arraycopy.TestMissingControl
  31  *
  32  */
  33 
  34 package compiler.arraycopy;
  35 
  36 public class TestMissingControl {
  37 
  38     static int[] m1(int[] a2) {
  39         int[] a1 = new int[10];
  40         System.arraycopy(a1, 0, a2, 0, 10);
  41         return a1;
  42     }
  43 
  44     static class A {
  45     }
  46 
  47     static Object m2(Object[] a2) {
  48         A[] a1 = new A[10];
  49         System.arraycopy(a1, 0, a2, 0, 10);
  50         return a1;
  51     }
  52 
  53     static void test1() {
  54         int[] a2 = new int[10];
  55         int[] a3 = new int[5];
  56 
  57         // compile m1 with arraycopy intrinsified
  58         for (int i = 0; i < 20000; i++) {
  59             m1(a2);
  60         }
  61 
  62         // make m1 trap
  63         for (int i = 0; i < 10; i++) {
  64             try {
  65                 m1(a3);
  66             } catch(IndexOutOfBoundsException ioobe) {
  67             }
  68         }
  69 
  70         // recompile m1
  71         for (int i = 0; i < 20000; i++) {
  72             m1(a2);
  73         }
  74 
  75         try {
  76             m1(null);
  77         } catch(NullPointerException npe) {}
  78     }
  79 
  80     static void test2() {
  81         A[] a2 = new A[10];
  82         A[] a3 = new A[5];
  83 
  84         // compile m2 with arraycopy intrinsified
  85         for (int i = 0; i < 20000; i++) {
  86             m2(a2);
  87         }
  88 
  89         // make m2 trap
  90         for (int i = 0; i < 10; i++) {
  91             try {
  92                 m2(a3);
  93             } catch(IndexOutOfBoundsException ioobe) {
  94             }
  95         }
  96 
  97         // recompile m2
  98         for (int i = 0; i < 20000; i++) {
  99             m2(a2);
 100         }
 101 
 102         try {
 103             m2(null);
 104         } catch(NullPointerException npe) {}
 105     }
 106 
 107     static public void main(String[] args) {
 108         test1();
 109         test2();
 110     }
 111 }