Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.hotspot.test/src/com/oracle/graal/hotspot/test/CRC32SubstitutionsTest.java @ 19996:486cba140d2b
Fix IGV small layout bug.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 21 Mar 2015 16:22:15 +0100 |
parents | 4e2178dc81fb |
children |
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/* * Copyright (c) 2007, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.graal.hotspot.test; import java.io.*; import java.nio.*; import java.util.zip.*; import org.junit.*; import com.oracle.graal.compiler.test.*; /** * Tests compiled call to {@link CRC32#update(int, int)}. */ @SuppressWarnings("javadoc") public class CRC32SubstitutionsTest extends GraalCompilerTest { public static long update(byte[] input) { CRC32 crc = new CRC32(); for (byte b : input) { crc.update(b); } return crc.getValue(); } @Test public void test1() { test("update", "some string".getBytes()); } public static long updateBytes(byte[] input, int offset, int length) { CRC32 crc = new CRC32(); crc.update(input, offset, length); return crc.getValue(); } @Test public void test2() { byte[] buf = "some string".getBytes(); int off = 0; int len = buf.length; test("updateBytes", buf, off, len); } @Test public void test3() throws Throwable { String classfileName = CRC32SubstitutionsTest.class.getSimpleName().replace('.', '/') + ".class"; InputStream s = CRC32SubstitutionsTest.class.getResourceAsStream(classfileName); byte[] buf = new byte[s.available()]; new DataInputStream(s).readFully(buf); test("updateBytes", buf, 0, buf.length); for (int offset = 1; offset < buf.length; offset++) { test("updateBytes", buf, offset, buf.length - offset); } } public static long updateByteBuffer(ByteBuffer buffer) { CRC32 crc = new CRC32(); buffer.rewind(); crc.update(buffer); return crc.getValue(); } @Test public void test4() throws Throwable { String classfileName = CRC32SubstitutionsTest.class.getSimpleName().replace('.', '/') + ".class"; InputStream s = CRC32SubstitutionsTest.class.getResourceAsStream(classfileName); byte[] buf = new byte[s.available()]; new DataInputStream(s).readFully(buf); ByteBuffer directBuf = ByteBuffer.allocateDirect(buf.length); directBuf.put(buf); ByteBuffer heapBuf = ByteBuffer.wrap(buf); test("updateByteBuffer", directBuf); test("updateByteBuffer", heapBuf); } }