121 lines
3.7 KiB
Java
121 lines
3.7 KiB
Java
/*
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* Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 6663621
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* @summary JVM crashes while trying to execute api/java_security/Signature/SignatureTests.html#initSign tests.
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*
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* @run main compiler.c2.IVTest
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*/
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package compiler.c2;
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public class IVTest {
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static int paddedSize;
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static void padV15(byte[] padded) {
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int psSize = padded.length;
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int k = 0;
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while (psSize-- > 0) {
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padded[k++] = (byte)0xff;
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}
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}
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static void padV15_2(int paddedSize) {
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byte[] padded = new byte[paddedSize];
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int psSize = padded.length;
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int k = 0;
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while (psSize-- > 0) {
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padded[k++] = (byte)0xff;
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}
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}
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static void padV15_3() {
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byte[] padded = new byte[paddedSize];
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int psSize = padded.length;
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int k = 0;
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while (psSize-- > 0) {
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padded[k++] = (byte)0xff;
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}
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}
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static void padV15_4() {
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byte[] padded = new byte[paddedSize];
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int psSize = padded.length;
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for (int k = 0;psSize > 0; psSize--) {
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int i = padded.length - psSize;
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padded[i] = (byte)0xff;
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}
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}
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static void padV15_5() {
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byte[] padded = new byte[paddedSize];
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int psSize = padded.length;
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int k = psSize - 1;
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for (int i = 0; i < psSize; i++) {
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padded[k--] = (byte)0xff;
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}
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}
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public static void main(String argv[]) {
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int bounds = 1024;
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int lim = 500000;
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long start = System.currentTimeMillis();
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for (int j = 0; j < lim; j++) {
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paddedSize = j % bounds;
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padV15(new byte[paddedSize]);
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}
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long end = System.currentTimeMillis();
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System.out.println(end - start);
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start = System.currentTimeMillis();
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for (int j = 0; j < lim; j++) {
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paddedSize = j % bounds;
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padV15_2(paddedSize);
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}
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end = System.currentTimeMillis();
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System.out.println(end - start);
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start = System.currentTimeMillis();
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for (int j = 0; j < lim; j++) {
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paddedSize = j % bounds;
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padV15_3();
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}
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end = System.currentTimeMillis();
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System.out.println(end - start);
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start = System.currentTimeMillis();
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for (int j = 0; j < lim; j++) {
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paddedSize = j % bounds;
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padV15_4();
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}
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end = System.currentTimeMillis();
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System.out.println(end - start);
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start = System.currentTimeMillis();
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for (int j = 0; j < lim; j++) {
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paddedSize = j % bounds;
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padV15_5();
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}
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end = System.currentTimeMillis();
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System.out.println(end - start);
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}
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}
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