Mercurial > hg > graal-compiler
changeset 11176:0630959b64e8
disabled CRC32 intrinsics until they work with Graal
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Thu, 01 Aug 2013 00:57:27 +0200 |
parents | e636d62005c3 |
children | d0aeaf72c7bd |
files | graal/com.oracle.graal.jtt/src/com/oracle/graal/jtt/jdk/CRC32_update.java src/share/vm/runtime/arguments.cpp |
diffstat | 2 files changed, 54 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.jtt/src/com/oracle/graal/jtt/jdk/CRC32_update.java Thu Aug 01 00:57:27 2013 +0200 @@ -0,0 +1,46 @@ +/* + * 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.jtt.jdk; + +import java.util.zip.*; + +import org.junit.*; + +import com.oracle.graal.jtt.*; + +public class CRC32_update extends JTTTest { + + public static long test(byte[] input) { + CRC32 crc = new CRC32(); + for (byte b : input) { + crc.update(b); + } + return crc.getValue(); + } + + @Test + public void run0() throws Throwable { + runTest("test", "some string".getBytes()); + } + +}
--- a/src/share/vm/runtime/arguments.cpp Thu Aug 01 00:38:28 2013 +0200 +++ b/src/share/vm/runtime/arguments.cpp Thu Aug 01 00:57:27 2013 +0200 @@ -2219,6 +2219,14 @@ ScavengeRootsInCode = 1; } + if (UseCRC32Intrinsics) { + // For some yet to be determined reason, enabling CRC32 intrinsics causes + // a Graal compiled call to 'static java.util.zip.CRC32.update(int crc, int b)' + // to crash the VM + warning("disabling CRC32 intrinsics because Graal is enabled"); + } + // This prevents the flag being set to true by VM_Version::get_processor_features() + FLAG_SET_CMDLINE(bool, UseCRC32Intrinsics, false); #endif // Need to limit the extent of the padding to reasonable size.