Mercurial > hg > graal-compiler
diff graal/GraalCompiler/src/com/sun/c1x/ir/LoopEnd.java @ 2799:e1dad0edd57a
first part of loop reworking
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Fri, 27 May 2011 17:48:28 +0200 |
parents | |
children | bd17ac598c6e |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/GraalCompiler/src/com/sun/c1x/ir/LoopEnd.java Fri May 27 17:48:28 2011 +0200 @@ -0,0 +1,72 @@ +/* + * Copyright (c) 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.*; + + +public class LoopEnd extends Merge { + + private static final int INPUT_COUNT = 1; + private static final int INPUT_LOOP_BEGIN = 0; + + private static final int SUCCESSOR_COUNT = 0; + + @Override + protected int inputCount() { + return super.inputCount() + INPUT_COUNT; + } + + @Override + protected int successorCount() { + return super.successorCount() + SUCCESSOR_COUNT; + } + + /** + * The instruction which produces the input value to this instruction. + */ + public LoopBegin loopBegin() { + return (LoopBegin) inputs().get(super.inputCount() + INPUT_LOOP_BEGIN); + } + + public LoopBegin setLoopBegin(LoopBegin n) { + return (LoopBegin) inputs().set(super.inputCount() + INPUT_LOOP_BEGIN, n); + } + + public LoopEnd(Graph graph) { + super(INPUT_COUNT, SUCCESSOR_COUNT, graph); + } + + @Override + public void accept(ValueVisitor v) { + v.visitLoopEnd(this); + } + + @Override + public void print(LogStream out) { + out.print("loopEnd ").print(loopBegin()); + } + + +}