Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeWideable.java @ 19491:4d66c000d253
Truffle/Instrumentation: more cleanup in Probe
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Wed, 18 Feb 2015 18:30:49 -0800 |
parents | 6a991dcb52bb |
children |
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/* * Copyright (c) 2002, 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 sun.jvm.hotspot.interpreter; import sun.jvm.hotspot.oops.*; public abstract class BytecodeWideable extends Bytecode { BytecodeWideable(Method method, int bci) { super(method, bci); } public boolean isWide() { int prevBci = bci() - 1; return (prevBci > -1 && method.getBytecodeOrBPAt(prevBci) == Bytecodes._wide); } // the local variable index public int getLocalVarIndex() { return (isWide()) ? getIndexU2(code(), true) : getIndexU1(); } }