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view agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeInvoke.java @ 12704:0e998f0daddf
Code cache: make sure we collect statistics even if the compiler is not recognized
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Thu, 07 Nov 2013 11:17:23 +0100 |
parents | da91efe96a93 |
children |
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/* * Copyright (c) 2001, 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 sun.jvm.hotspot.interpreter; import sun.jvm.hotspot.oops.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.utilities.*; public class BytecodeInvoke extends BytecodeWithCPIndex { BytecodeInvoke(Method method, int bci) { super(method, bci); } public static BytecodeInvoke at(Method method, int bci) { BytecodeInvoke b = new BytecodeInvoke(method, bci); if (Assert.ASSERTS_ENABLED) { b.verify(); } return b; } /** Like at, but returns null if the BCI is not at an invoke */ public static BytecodeInvoke atCheck(Method method, int bci) { BytecodeInvoke b = new BytecodeInvoke(method, bci); return (b.isValid() ? b : null); } public static BytecodeInvoke at(BytecodeStream bcs) { return new BytecodeInvoke(bcs.method(), bcs.bci()); } // returns the name of the invoked method public Symbol name() { ConstantPool cp = method().getConstants(); if (isInvokedynamic()) { return cp.uncachedGetNameRefAt(indexForFieldOrMethod()); } return cp.getNameRefAt(index()); } // returns the signature of the invoked method public Symbol signature() { ConstantPool cp = method().getConstants(); if (isInvokedynamic()) { return cp.uncachedGetSignatureRefAt(indexForFieldOrMethod()); } return cp.getSignatureRefAt(index()); } public Method getInvokedMethod() { return method().getConstants().getMethodRefAt(index()); } // returns the result type (see BasicType.java) of the invoke public int resultType() { ResultTypeFinder rts = new ResultTypeFinder(signature()); rts.iterate(); return rts.type(); } public int adjustedInvokeCode() { return javaCode(); } // "specified" method (from constant pool) // FIXME: elided for now // public Method staticTarget(); // Testers public boolean isInvokeinterface() { return adjustedInvokeCode() == Bytecodes._invokeinterface; } public boolean isInvokevirtual() { return adjustedInvokeCode() == Bytecodes._invokevirtual; } public boolean isInvokestatic() { return adjustedInvokeCode() == Bytecodes._invokestatic; } public boolean isInvokespecial() { return adjustedInvokeCode() == Bytecodes._invokespecial; } public boolean isInvokedynamic() { return adjustedInvokeCode() == Bytecodes._invokedynamic; } public boolean isValid() { return isInvokeinterface() || isInvokevirtual() || isInvokestatic() || isInvokespecial(); } public void verify() { if (Assert.ASSERTS_ENABLED) { Assert.that(isValid(), "check invoke"); } } public String toString() { StringBuffer buf = new StringBuffer(); buf.append(getJavaBytecodeName()); buf.append(spaces); buf.append('#'); buf.append(Integer.toString(indexForFieldOrMethod())); if (isInvokedynamic()) { buf.append('('); buf.append(Integer.toString(index())); buf.append(')'); } buf.append(" [Method "); StringBuffer sigBuf = new StringBuffer(); new SignatureConverter(signature(), sigBuf).iterateReturntype(); buf.append(sigBuf.toString().replace('/', '.')); buf.append(spaces); buf.append(name().asString()); buf.append('('); sigBuf = new StringBuffer(); new SignatureConverter(signature(), sigBuf).iterateParameters(); buf.append(sigBuf.toString().replace('/', '.')); buf.append(')'); buf.append(']'); if (code() != javaCode()) { buf.append(spaces); buf.append('['); buf.append(getBytecodeName()); buf.append(']'); } return buf.toString(); } }