/*
* 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.max.criutils.*;
import com.sun.c1x.value.*;
import com.sun.cri.ci.*;
/**
* The {@code Goto} instruction represents the end of a block with an unconditional jump to another block.
*/
public final class Goto extends BlockEnd {
/**
* Constructs a new Goto instruction.
* @param succ the successor block of the goto
* @param stateAfter the frame state at the end of this block
* @param isSafepointPoll {@code true} if the goto should be considered a safepoint (e.g. backward branch)
*/
public Goto(BlockBegin succ, FrameState stateAfter, boolean isSafepointPoll) {
super(CiKind.Illegal, stateAfter, isSafepointPoll);
successors.add(succ);
}
@Override
public void accept(ValueVisitor v) {
v.visitGoto(this);
}
@Override
public void print(LogStream out) {
out.print("goto B").print(defaultSuccessor().blockID);
if (isSafepointPoll()) {
out.print(" (safepoint)");
}
}
}