Mercurial > hg > graal-compiler
view graal/com.oracle.max.graal.nodes/src/com/oracle/graal/nodes/LoopEndNode.java @ 5060:4ed4295ce15f
Update import statements.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Thu, 08 Mar 2012 19:11:12 +0100 |
parents | ed559a528128 |
children |
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/* * 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.oracle.graal.nodes; import java.util.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.spi.*; public final class LoopEndNode extends EndNode { @Input(notDataflow = true) private LoopBeginNode loopBegin; @Data private boolean safepointPolling; @Data private int endIndex; public LoopEndNode(LoopBeginNode begin) { int idx = begin.nextEndIndex(); assert idx >= 0; this.safepointPolling = true; this.endIndex = idx; this.loopBegin = begin; } @Override public MergeNode merge() { return loopBegin(); } public LoopBeginNode loopBegin() { return loopBegin; } public void setLoopBegin(LoopBeginNode x) { updateUsages(this.loopBegin, x); this.loopBegin = x; } public void setSafepointPolling(boolean safePointPolling) { this.safepointPolling = safePointPolling; } public boolean hasSafepointPolling() { return safepointPolling; } @Override public void generate(LIRGeneratorTool gen) { gen.visitLoopEnd(this); super.generate(gen); } @Override public boolean verify() { assertTrue(loopBegin != null, "must have a loop begin"); assertTrue(usages().count() == 0, "LoopEnds can not be used"); return super.verify(); } public int endIndex() { return endIndex; } public void setEndIndex(int idx) { this.endIndex = idx; } @Override public Iterable< ? extends Node> cfgSuccessors() { return Collections.emptyList(); } }