Mercurial > hg > truffle
view graal/GraalCompiler/src/com/sun/c1x/ir/MonitorEnter.java @ 2621:dd115f80acf8
changed stateAfter FrameState to successor (instead of input), checkstyle fixes, added fixed root node to graph
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Tue, 10 May 2011 11:55:12 +0200 |
parents | 3558ca7088c0 |
children | 91d3952f7eb7 |
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/* * Copyright (c) 2009, 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.sun.c1x.ir; import com.oracle.graal.graph.*; import com.sun.c1x.debug.*; import com.sun.c1x.value.*; /** * The {@code MonitorEnter} instruction represents the acquisition of a monitor. */ public final class MonitorEnter extends AccessMonitor { private static final int INPUT_COUNT = 0; private static final int SUCCESSOR_COUNT = 1; private static final int SUCCESSOR_STATE_AFTER = 0; @Override protected int inputCount() { return super.inputCount() + INPUT_COUNT; } @Override protected int successorCount() { return super.successorCount() + SUCCESSOR_COUNT; } /** * The state for this instruction. */ @Override public FrameState stateAfter() { return (FrameState) successors().get(super.successorCount() + SUCCESSOR_STATE_AFTER); } public FrameState setStateAfter(FrameState n) { return (FrameState) successors().set(super.successorCount() + SUCCESSOR_STATE_AFTER, n); } /** * Creates a new MonitorEnter instruction. * * @param object the instruction producing the object * @param lockAddress the address of the on-stack lock object or {@code null} if the runtime does not place locks on the stack * @param lockNumber the number of the lock * @param stateBefore the state before * @param graph */ public MonitorEnter(Value object, Value lockAddress, int lockNumber, FrameState stateBefore, Graph graph) { super(object, lockAddress, stateBefore, lockNumber, INPUT_COUNT, SUCCESSOR_COUNT, graph); } @Override public void accept(ValueVisitor v) { v.visitMonitorEnter(this); } @Override public void print(LogStream out) { out.print("enter monitor[").print(lockNumber).print("](").print(object()).print(')'); } }