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 }