Mercurial > hg > truffle
changeset 1058:73a726751507
6852078: HSX 14/16 in jdk 5.0: api/javax_management api/org_omg jck tests crashes or make tnameserv crash
Summary: Disable SuperWord optimization for unsafe read/write
Reviewed-by: kvn, phh
author | cfang |
---|---|
date | Fri, 30 Oct 2009 10:12:52 -0700 |
parents | f334aec453a1 |
children | 389049f3f393 |
files | src/share/vm/opto/superword.cpp test/compiler/6852078/Test6852078.java |
diffstat | 2 files changed, 62 insertions(+), 0 deletions(-) [+] |
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--- a/src/share/vm/opto/superword.cpp Thu Oct 29 16:57:55 2009 -0700 +++ b/src/share/vm/opto/superword.cpp Fri Oct 30 10:12:52 2009 -0700 @@ -1921,6 +1921,11 @@ } // Match AddP(base, AddP(ptr, k*iv [+ invariant]), constant) Node* base = adr->in(AddPNode::Base); + //unsafe reference could not be aligned appropriately without runtime checking + if (base == NULL || base->bottom_type() == Type::TOP) { + assert(!valid(), "unsafe access"); + return; + } for (int i = 0; i < 3; i++) { if (!scaled_iv_plus_offset(adr->in(AddPNode::Offset))) { assert(!valid(), "too complex");
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/compiler/6852078/Test6852078.java Fri Oct 30 10:12:52 2009 -0700 @@ -0,0 +1,57 @@ +/* + * Copyright 2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +/** + * @test + * @bug 6852078 + * @summary Disable SuperWord optimization for unsafe read/write + * + * @run main/othervm Test6852078 + */ + +import java.util.*; +import java.nio.ByteBuffer; +import com.sun.corba.se.impl.encoding.ByteBufferWithInfo; +import com.sun.jndi.toolkit.corba.CorbaUtils; + +public class Test6852078 { + + public Test6852078(String [] args) { + + int capacity = 128; + ByteBuffer bb = ByteBuffer.allocateDirect(capacity); + ByteBufferWithInfo bbwi = new ByteBufferWithInfo( CorbaUtils.getOrb(null, -1, new Hashtable()), bb); + byte[] tmpBuf; + tmpBuf = new byte[bbwi.buflen]; + + for (int i = 0; i < capacity; i++) + tmpBuf[i] = bbwi.byteBuffer.get(i); + } + + public static void main(String [] args) { + for (int i=0; i<2000; i++) { + Test6852078 t = new Test6852078(args); + } + } +}