Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: test/compiler/6663621/IVTest.java
test/compiler/6663621/IVTest.java
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| 1 /* | |
| 2 * Copyright (c) 1997, 2008, 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 /** | |
| 26 * @test | |
| 27 * @bug 6663621 | |
| 28 * @summary JVM crashes while trying to execute api/java_security/Signature/SignatureTests.html#initSign tests. | |
| 29 */ | |
| 30 | |
| 31 public class IVTest { | |
| 32 static int paddedSize; | |
| 33 | |
| 34 static void padV15(byte[] padded) { | |
| 35 int psSize = padded.length; | |
| 36 int k = 0; | |
| 37 while (psSize-- > 0) { | |
| 38 padded[k++] = (byte)0xff; | |
| 39 } | |
| 40 } | |
| 41 | |
| 42 static void padV15_2(int paddedSize) { | |
| 43 byte[] padded = new byte[paddedSize]; | |
| 44 int psSize = padded.length; | |
| 45 int k = 0; | |
| 46 while (psSize-- > 0) { | |
| 47 padded[k++] = (byte)0xff; | |
| 48 } | |
| 49 } | |
| 50 | |
| 51 static void padV15_3() { | |
| 52 byte[] padded = new byte[paddedSize]; | |
| 53 int psSize = padded.length; | |
| 54 int k = 0; | |
| 55 while (psSize-- > 0) { | |
| 56 padded[k++] = (byte)0xff; | |
| 57 } | |
| 58 } | |
| 59 | |
| 60 static void padV15_4() { | |
| 61 byte[] padded = new byte[paddedSize]; | |
| 62 int psSize = padded.length; | |
| 63 for (int k = 0;psSize > 0; psSize--) { | |
| 64 int i = padded.length - psSize; | |
| 65 padded[i] = (byte)0xff; | |
| 66 } | |
| 67 } | |
| 68 | |
| 69 static void padV15_5() { | |
| 70 byte[] padded = new byte[paddedSize]; | |
| 71 int psSize = padded.length; | |
| 72 int k = psSize - 1; | |
| 73 for (int i = 0; i < psSize; i++) { | |
| 74 padded[k--] = (byte)0xff; | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 public static void main(String argv[]) { | |
| 79 int bounds = 1024; | |
| 80 int lim = 500000; | |
| 81 long start = System.currentTimeMillis(); | |
| 82 for (int j = 0; j < lim; j++) { | |
| 83 paddedSize = j % bounds; | |
| 84 padV15(new byte[paddedSize]); | |
| 85 } | |
| 86 long end = System.currentTimeMillis(); | |
| 87 System.out.println(end - start); | |
| 88 start = System.currentTimeMillis(); | |
| 89 for (int j = 0; j < lim; j++) { | |
| 90 paddedSize = j % bounds; | |
| 91 padV15_2(paddedSize); | |
| 92 } | |
| 93 end = System.currentTimeMillis(); | |
| 94 System.out.println(end - start); | |
| 95 start = System.currentTimeMillis(); | |
| 96 for (int j = 0; j < lim; j++) { | |
| 97 paddedSize = j % bounds; | |
| 98 padV15_3(); | |
| 99 } | |
| 100 end = System.currentTimeMillis(); | |
| 101 System.out.println(end - start); | |
| 102 start = System.currentTimeMillis(); | |
| 103 for (int j = 0; j < lim; j++) { | |
| 104 paddedSize = j % bounds; | |
| 105 padV15_4(); | |
| 106 } | |
| 107 end = System.currentTimeMillis(); | |
| 108 System.out.println(end - start); | |
| 109 start = System.currentTimeMillis(); | |
| 110 for (int j = 0; j < lim; j++) { | |
| 111 paddedSize = j % bounds; | |
| 112 padV15_5(); | |
| 113 } | |
| 114 end = System.currentTimeMillis(); | |
| 115 System.out.println(end - start); | |
| 116 } | |
| 117 } |
