Mercurial > hg > truffle
view graal/com.oracle.graal.loop/src/com/oracle/graal/loop/LoopsData.java @ 16320:fcac781d3592
Merge
author | Stefan Anzinger <stefan.anzinger@gmail.com> |
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date | Tue, 03 Jun 2014 14:31:36 +0200 |
parents | 33cedbce5b23 |
children | 3e3578bc8f9b |
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/* * Copyright (c) 2012, 2012, 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.loop; import static com.oracle.graal.graph.util.CollectionsAccess.*; import java.util.*; import com.oracle.graal.compiler.common.cfg.*; import com.oracle.graal.debug.*; import com.oracle.graal.debug.Debug.Scope; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.cfg.*; public class LoopsData { private Map<Loop<Block>, LoopEx> lirLoopToEx = newIdentityMap(); private Map<LoopBeginNode, LoopEx> loopBeginToEx = newNodeIdentityMap(); private ControlFlowGraph cfg; public LoopsData(final StructuredGraph graph) { try (Scope s = Debug.scope("ControlFlowGraph")) { cfg = ControlFlowGraph.compute(graph, true, true, true, true); } catch (Throwable e) { throw Debug.handle(e); } for (Loop<Block> lirLoop : cfg.getLoops()) { LoopEx ex = new LoopEx(lirLoop, this); lirLoopToEx.put(lirLoop, ex); loopBeginToEx.put(ex.loopBegin(), ex); } } public LoopEx loop(Loop<?> lirLoop) { return lirLoopToEx.get(lirLoop); } public LoopEx loop(LoopBeginNode loopBegin) { return loopBeginToEx.get(loopBegin); } public Collection<LoopEx> loops() { return lirLoopToEx.values(); } public List<LoopEx> outterFirst() { ArrayList<LoopEx> loops = new ArrayList<>(loops()); Collections.sort(loops, new Comparator<LoopEx>() { @Override public int compare(LoopEx o1, LoopEx o2) { return o1.lirLoop().getDepth() - o2.lirLoop().getDepth(); } }); return loops; } public List<LoopEx> innerFirst() { ArrayList<LoopEx> loops = new ArrayList<>(loops()); Collections.sort(loops, new Comparator<LoopEx>() { @Override public int compare(LoopEx o1, LoopEx o2) { return o2.lirLoop().getDepth() - o1.lirLoop().getDepth(); } }); return loops; } public Collection<LoopEx> countedLoops() { List<LoopEx> counted = new LinkedList<>(); for (LoopEx loop : loops()) { if (loop.isCounted()) { counted.add(loop); } } return counted; } public void detectedCountedLoops() { for (LoopEx loop : loops()) { loop.detectCounted(); } } public ControlFlowGraph controlFlowGraph() { return cfg; } public InductionVariable getInductionVariable(ValueNode value) { InductionVariable match = null; for (LoopEx loop : loops()) { InductionVariable iv = loop.getInductionVariables().get(value); if (iv != null) { if (match != null) { return null; } match = iv; } } return match; } }