Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.loop/src/com/oracle/graal/loop/phases/LoopTransformHighPhase.java @ 16038:23c4dd4f72a3
avoid duplication of frame states during unrolling
author | Lukas Stadler <lukas.stadler@oracle.com> |
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date | Thu, 05 Jun 2014 13:19:59 +0200 |
parents | c55f44b3c5e5 |
children | bab1a955411e |
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/* * Copyright (c) 2012, 2014, 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.phases; import static com.oracle.graal.compiler.common.GraalOptions.*; import java.util.function.*; import com.oracle.graal.debug.*; import com.oracle.graal.loop.*; import com.oracle.graal.nodes.*; import com.oracle.graal.phases.*; import com.oracle.graal.phases.graph.*; public class LoopTransformHighPhase extends Phase { @Override protected void run(StructuredGraph graph) { if (graph.hasLoops()) { if (LoopPeeling.getValue()) { ToDoubleFunction<FixedNode> probabilities = new FixedNodeProbabilityCache(); LoopsData data = new LoopsData(graph); for (LoopEx loop : data.outterFirst()) { if (LoopPolicies.shouldPeel(loop, probabilities)) { Debug.log("Peeling %s", loop); LoopTransformations.peel(loop, true); Debug.dump(graph, "After peeling %s", loop); } } } } } }