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ffa35d8cf1
Co-authored-by: Gui Cao <gcao@openjdk.org> Co-authored-by: Fei Yang <fyang@openjdk.org> Co-authored-by: Martin Doerr <mdoerr@openjdk.org> Co-authored-by: Amit Kumar <amitkumar@openjdk.org> Reviewed-by: coleenp, adinn, fparain
66 lines
2.3 KiB
Java
66 lines
2.3 KiB
Java
/*
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* Copyright (c) 2002, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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package sun.jvm.hotspot.interpreter;
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import sun.jvm.hotspot.oops.*;
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import sun.jvm.hotspot.runtime.*;
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// any bytecode with constant pool index
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public abstract class BytecodeWithCPIndex extends Bytecode {
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BytecodeWithCPIndex(Method method, int bci) {
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super(method, bci);
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}
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// the constant pool index for this bytecode
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public int index() {
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if (code() == Bytecodes._invokedynamic) {
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int index = getIndexU4();
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if (ConstantPool.isInvokedynamicIndex(index)) {
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return ConstantPool.decodeInvokedynamicIndex(index);
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} else {
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return index;
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}
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} else {
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return getIndexU2(code(), false);
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}
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}
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protected int indexForFieldOrMethod() {
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ConstantPoolCache cpCache = method().getConstants().getCache();
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// get ConstantPool index from ConstantPoolCacheIndex at given bci
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int cpCacheIndex = index();
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if (cpCache == null) {
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return cpCacheIndex;
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} else if (code() == Bytecodes._invokedynamic) {
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return cpCache.getIndyEntryAt(cpCacheIndex).getConstantPoolIndex();
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} else if (Bytecodes.isFieldCode(code())) {
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return cpCache.getFieldEntryAt(cpCacheIndex).getConstantPoolIndex();
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} else {
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return cpCache.getMethodEntryAt(cpCacheIndex).getConstantPoolIndex();
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}
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}
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}
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