001/*
002 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.truffle.test.builtins;
024
025import com.oracle.truffle.api.*;
026import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
027import com.oracle.truffle.api.dsl.*;
028import com.oracle.truffle.api.nodes.*;
029import com.oracle.truffle.sl.runtime.*;
030
031/**
032 * Forces a deoptimization as soon as the method runs in compiled code.
033 */
034@NodeInfo(shortName = "deoptimizeWhenCompiled")
035public abstract class SLDeoptimizeWhenCompiledBuiltin extends SLGraalRuntimeBuiltin {
036
037    @Specialization
038    public SLNull deoptimzeWhenCompiled(boolean condition) {
039        if (CompilerDirectives.inCompiledCode()) {
040            if (condition) {
041                printMessage();
042                CompilerDirectives.transferToInterpreterAndInvalidate();
043            }
044        }
045        return SLNull.SINGLETON;
046    }
047
048    @TruffleBoundary
049    private void printMessage() {
050        getContext().getOutput().println("[deoptimizeWhenCompiled]");
051    }
052}