Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/CheckCastDynamicSnippets.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 | 7ba8fb19d56d |
children | 48c1ebd24120 |
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/* * Copyright (c) 2012, 2015, 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.hotspot.replacements; import static com.oracle.graal.api.meta.DeoptimizationAction.*; import static com.oracle.graal.api.meta.DeoptimizationReason.*; import static com.oracle.graal.hotspot.replacements.HotSpotReplacementsUtil.*; import static com.oracle.graal.hotspot.replacements.TypeCheckSnippetUtils.*; import static com.oracle.graal.nodes.PiNode.*; import static com.oracle.graal.nodes.extended.BranchProbabilityNode.*; import static com.oracle.graal.replacements.SnippetTemplate.*; import com.oracle.graal.api.code.*; import com.oracle.graal.compiler.common.type.*; import com.oracle.graal.hotspot.meta.*; import com.oracle.graal.hotspot.nodes.*; import com.oracle.graal.hotspot.word.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.extended.*; import com.oracle.graal.nodes.java.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.replacements.*; import com.oracle.graal.replacements.SnippetTemplate.AbstractTemplates; import com.oracle.graal.replacements.SnippetTemplate.Arguments; import com.oracle.graal.replacements.SnippetTemplate.SnippetInfo; import com.oracle.jvmci.debug.*; /** * Snippet used for lowering {@link CheckCastDynamicNode}. */ public class CheckCastDynamicSnippets implements Snippets { @Snippet public static Object checkcastDynamic(KlassPointer hub, Object object) { if (probability(NOT_FREQUENT_PROBABILITY, object == null)) { isNull.inc(); } else { GuardingNode anchorNode = SnippetAnchorNode.anchor(); KlassPointer objectHub = loadHubIntrinsic(object, anchorNode); if (!checkUnknownSubType(hub, objectHub)) { DeoptimizeNode.deopt(InvalidateReprofile, ClassCastException); } } GuardingNode anchorNode = SnippetAnchorNode.anchor(); return piCast(verifyOop(object), StampFactory.forNodeIntrinsic(), anchorNode); } public static class Templates extends AbstractTemplates { private final SnippetInfo dynamic = snippet(CheckCastDynamicSnippets.class, "checkcastDynamic", SECONDARY_SUPER_CACHE_LOCATION); public Templates(HotSpotProviders providers, TargetDescription target) { super(providers, providers.getSnippetReflection(), target); } public void lower(CheckCastDynamicNode checkcast, LoweringTool tool) { StructuredGraph graph = checkcast.graph(); ValueNode object = checkcast.object(); Arguments args = new Arguments(dynamic, graph.getGuardsStage(), tool.getLoweringStage()); args.add("hub", checkcast.hub()); args.add("object", object); SnippetTemplate template = template(args); Debug.log("Lowering dynamic checkcast in %s: node=%s, template=%s, arguments=%s", graph, checkcast, template, args); template.instantiate(providers.getMetaAccess(), checkcast, DEFAULT_REPLACER, args); } } }