1 /*
   2  * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package org.graalvm.compiler.replacements;
  24 
  25 import org.graalvm.compiler.api.replacements.SnippetReflectionProvider;
  26 import org.graalvm.compiler.core.common.spi.ForeignCallsProvider;
  27 import org.graalvm.compiler.core.common.type.Stamp;
  28 import org.graalvm.compiler.core.common.type.StampFactory;
  29 import org.graalvm.compiler.core.common.type.TypeReference;
  30 import org.graalvm.compiler.debug.GraalError;
  31 import org.graalvm.compiler.nodes.graphbuilderconf.NodeIntrinsicPluginFactory.InjectionProvider;
  32 import org.graalvm.compiler.word.WordTypes;
  33 
  34 import jdk.vm.ci.meta.JavaKind;
  35 import jdk.vm.ci.meta.MetaAccessProvider;
  36 import jdk.vm.ci.meta.ResolvedJavaType;
  37 
  38 public class NodeIntrinsificationProvider implements InjectionProvider {
  39 
  40     private final MetaAccessProvider metaAccess;
  41     private final SnippetReflectionProvider snippetReflection;
  42     private final ForeignCallsProvider foreignCalls;
  43     private final WordTypes wordTypes;
  44 
  45     public NodeIntrinsificationProvider(MetaAccessProvider metaAccess, SnippetReflectionProvider snippetReflection, ForeignCallsProvider foreignCalls, WordTypes wordTypes) {
  46         this.metaAccess = metaAccess;
  47         this.snippetReflection = snippetReflection;
  48         this.foreignCalls = foreignCalls;
  49         this.wordTypes = wordTypes;
  50     }
  51 
  52     @Override
  53     public Stamp getReturnStamp(Class<?> type, boolean nonNull) {
  54         JavaKind kind = JavaKind.fromJavaClass(type);
  55         if (kind == JavaKind.Object) {
  56             ResolvedJavaType returnType = metaAccess.lookupJavaType(type);
  57             if (wordTypes.isWord(returnType)) {
  58                 return wordTypes.getWordStamp(returnType);
  59             } else {
  60                 return StampFactory.object(TypeReference.createWithoutAssumptions(returnType), nonNull);
  61             }
  62         } else {
  63             return StampFactory.forKind(kind);
  64         }
  65     }
  66 
  67     @Override
  68     public <T> T getInjectedArgument(Class<T> type) {
  69         T injected = snippetReflection.getInjectedNodeIntrinsicParameter(type);
  70         if (injected != null) {
  71             return injected;
  72         } else if (type.equals(ForeignCallsProvider.class)) {
  73             return type.cast(foreignCalls);
  74         } else if (type.equals(SnippetReflectionProvider.class)) {
  75             return type.cast(snippetReflection);
  76         } else {
  77             throw new GraalError("Cannot handle injected argument of type %s.", type.getName());
  78         }
  79     }
  80 }