Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/CheckCastDynamicSnippets.java @ 11226:422b0e9b9aed
removed obsolete checkcast snippets
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Tue, 06 Aug 2013 16:13:05 +0200 |
parents | graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/CheckCastSnippets.java@388fbd0dd4a4 |
children | 56f1aa40e13b |
line wrap: on
line source
/* * Copyright (c) 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.hotspot.replacements; import static com.oracle.graal.api.code.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.extended.BranchProbabilityNode.*; import static com.oracle.graal.nodes.extended.UnsafeCastNode.*; import static com.oracle.graal.replacements.SnippetTemplate.*; import com.oracle.graal.api.code.*; import com.oracle.graal.debug.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.java.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.nodes.type.*; import com.oracle.graal.replacements.*; import com.oracle.graal.replacements.Snippet.ConstantParameter; import com.oracle.graal.replacements.SnippetTemplate.AbstractTemplates; import com.oracle.graal.replacements.SnippetTemplate.Arguments; import com.oracle.graal.replacements.SnippetTemplate.SnippetInfo; import com.oracle.graal.word.*; /** * Snippet used for lowering {@link CheckCastDynamicNode}. */ public class CheckCastDynamicSnippets implements Snippets { @Snippet public static Object checkcastDynamic(Word hub, Object object, @ConstantParameter boolean checkNull) { if (checkNull && probability(NOT_FREQUENT_PROBABILITY, object == null)) { isNull.inc(); } else { Word objectHub = loadHub(object); if (!checkUnknownSubType(hub, objectHub)) { DeoptimizeNode.deopt(InvalidateReprofile, ClassCastException); } } BeginNode anchorNode = BeginNode.anchor(StampFactory.forNodeIntrinsic()); return unsafeCast(verifyOop(object), StampFactory.forNodeIntrinsic(), anchorNode); } public static class Templates extends AbstractTemplates { private final SnippetInfo dynamic = snippet(CheckCastDynamicSnippets.class, "checkcastDynamic"); public Templates(CodeCacheProvider runtime, Replacements replacements, TargetDescription target) { super(runtime, replacements, target); } public void lower(CheckCastDynamicNode checkcast) { StructuredGraph graph = checkcast.graph(); ValueNode object = checkcast.object(); Arguments args = new Arguments(dynamic); args.add("hub", checkcast.hub()); args.add("object", object); args.addConst("checkNull", !object.stamp().nonNull()); SnippetTemplate template = template(args); Debug.log("Lowering dynamic checkcast in %s: node=%s, template=%s, arguments=%s", graph, checkcast, template, args); template.instantiate(runtime, checkcast, DEFAULT_REPLACER, args); } } }