Mercurial > hg > truffle
view graal/com.oracle.graal.loop/src/com/oracle/graal/loop/phases/LoopFullUnrollPhase.java @ 21554:b1530a6cce8c
renamed com.oracle.graal.[debug|options|hotspotvmconfig]* modules to com.oracle.jvmci.[debug|options|hotspotvmconfig]* modules (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 26 May 2015 23:21:15 +0200 |
parents | 7fb828b4c32b |
children |
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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.phases; import com.oracle.graal.loop.*; import com.oracle.graal.nodes.*; import com.oracle.graal.phases.*; import com.oracle.graal.phases.common.*; import com.oracle.graal.phases.tiers.*; import com.oracle.jvmci.debug.*; public class LoopFullUnrollPhase extends BasePhase<PhaseContext> { private static final DebugMetric FULLY_UNROLLED_LOOPS = Debug.metric("FullUnrolls"); private final CanonicalizerPhase canonicalizer; public LoopFullUnrollPhase(CanonicalizerPhase canonicalizer) { this.canonicalizer = canonicalizer; } @Override protected void run(StructuredGraph graph, PhaseContext context) { if (graph.hasLoops()) { boolean peeled; do { peeled = false; final LoopsData dataCounted = new LoopsData(graph); dataCounted.detectedCountedLoops(); for (LoopEx loop : dataCounted.countedLoops()) { if (LoopPolicies.shouldFullUnroll(loop)) { Debug.log("FullUnroll %s", loop); LoopTransformations.fullUnroll(loop, context, canonicalizer); FULLY_UNROLLED_LOOPS.increment(); Debug.dump(graph, "After fullUnroll %s", loop); peeled = true; break; } } dataCounted.deleteUnusedNodes(); } while (peeled); } } }