1 /*
2  * Copyright (c) 2013, 2018, 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 
24 
25 package org.graalvm.compiler.hotspot;
26 
27 import org.graalvm.compiler.api.replacements.SnippetReflectionProvider;
28 import org.graalvm.compiler.bytecode.BytecodeProvider;
29 import org.graalvm.compiler.hotspot.meta.HotSpotWordOperationPlugin;
30 import org.graalvm.compiler.hotspot.word.HotSpotOperation;
31 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderPlugin;
32 import org.graalvm.compiler.options.OptionValues;
33 import org.graalvm.compiler.phases.util.Providers;
34 import org.graalvm.compiler.printer.GraalDebugHandlersFactory;
35 import org.graalvm.compiler.replacements.ReplacementsImpl;
36 
37 import jdk.vm.ci.code.TargetDescription;
38 import jdk.vm.ci.meta.ResolvedJavaMethod;
39 
40 /**
41  * Filters certain method substitutions based on whether there is underlying hardware support for
42  * them.
43  */
44 public class HotSpotReplacementsImpl extends ReplacementsImpl {
HotSpotReplacementsImpl(OptionValues options, Providers providers, SnippetReflectionProvider snippetReflection, BytecodeProvider bytecodeProvider, TargetDescription target)45     public HotSpotReplacementsImpl(OptionValues options, Providers providers, SnippetReflectionProvider snippetReflection, BytecodeProvider bytecodeProvider, TargetDescription target) {
46         super(options, new GraalDebugHandlersFactory(snippetReflection), providers, snippetReflection, bytecodeProvider, target);
47     }
48 
49     @Override
getIntrinsifyingPlugin(ResolvedJavaMethod method)50     public Class<? extends GraphBuilderPlugin> getIntrinsifyingPlugin(ResolvedJavaMethod method) {
51         return method.getAnnotation(HotSpotOperation.class) != null ? HotSpotWordOperationPlugin.class : super.getIntrinsifyingPlugin(method);
52     }
53 
54     private boolean snippetRegistrationClosed;
55 
56     @Override
registerSnippet(ResolvedJavaMethod method, ResolvedJavaMethod original, Object receiver, boolean trackNodeSourcePosition)57     public void registerSnippet(ResolvedJavaMethod method, ResolvedJavaMethod original, Object receiver, boolean trackNodeSourcePosition) {
58         assert !snippetRegistrationClosed;
59         super.registerSnippet(method, original, receiver, trackNodeSourcePosition);
60     }
61 
62     @Override
closeSnippetRegistration()63     public void closeSnippetRegistration() {
64         snippetRegistrationClosed = true;
65     }
66 }
67