Mercurial > hg > graal-jvmci-8
view agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeWithCPIndex.java @ 931:72088be4b386
6873116: Modify reexecute implementation to use pcDesc to record the reexecute bit
Summary: use PcDesc to keep record of the reexecute bit instead of using DebugInfoStreams
Reviewed-by: kvn, never, twisti
author | cfang |
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date | Thu, 20 Aug 2009 12:42:57 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2002-2003 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. * */ package sun.jvm.hotspot.interpreter; import sun.jvm.hotspot.oops.*; import sun.jvm.hotspot.runtime.*; // any bytecode with constant pool index public abstract class BytecodeWithCPIndex extends Bytecode { BytecodeWithCPIndex(Method method, int bci) { super(method, bci); } // the constant pool index for this bytecode public int index() { return 0xFFFF & javaShortAt(1); } protected int indexForFieldOrMethod() { ConstantPoolCache cpCache = method().getConstants().getCache(); // get ConstantPool index from ConstantPoolCacheIndex at given bci int cpCacheIndex = index(); if (cpCache == null) { return cpCacheIndex; } else { // change byte-ordering and go via cache return cpCache.getEntryAt((int) (0xFFFF & VM.getVM().getBytes().swapShort((short) cpCacheIndex))).getConstantPoolIndex(); } } }