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view graal/com.oracle.max.graal.examples/src/com/oracle/max/graal/examples/deopt/DeoptHandler.java @ 3219:e41017cddf3a
more comments on examples, extended deopt example
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Thu, 14 Jul 2011 15:41:13 +0200 |
parents | 3d68684b7161 |
children |
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/* * Copyright (c) 2011, 2011, 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 com.oracle.max.graal.examples.deopt; import java.lang.reflect.*; import com.sun.cri.ri.*; public class DeoptHandler { /** * Deoptimization handler method for methods with a void return parameter. */ public void handle_void(RiMethod method, int bci, Object[] values, int numLocals, int numStack, int numLocks) { handle(method, bci, values, numLocals, numStack, numLocks); } /** * Deoptimization handler method for methods with an int return parameter. */ public int handle_int(RiMethod method, int bci, Object[] values, int numLocals, int numStack, int numLocks) { handle(method, bci, values, numLocals, numStack, numLocks); return 123; } /** * Deoptimization handler method for methods with an object return parameter. */ public Object handle_object(RiMethod method, int bci, Object[] values, int numLocals, int numStack, int numLocks) { handle(method, bci, values, numLocals, numStack, numLocks); return null; } /** * Deoptimization handler method: prints the current state of the method execution. */ public int handle(RiMethod method, int bci, Object[] values, int numLocals, int numStack, int numLocks) { System.out.printf("Deoptimization: %s@%d", method.name(), bci); int p = 0; System.out.print("\nArguments: "); int argCount = method.signature().argumentCount(!Modifier.isStatic(method.accessFlags())); for (int i = 0; i < argCount; i++) { System.out.printf("%s ", values[p++]); } System.out.print("\nLocals: "); for (int i = argCount; i < numLocals; i++) { System.out.printf("%s ", values[p++]); } System.out.print("\nExpression stack: "); for (int i = 0; i < numStack; i++) { System.out.printf("%s ", values[p++]); } System.out.print("\nLocks: "); for (int i = 0; i < numLocks; i++) { System.out.printf("%s ", values[p++]); } System.out.println(); return 2; } }