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 {
  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
  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
  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
  63     public void closeSnippetRegistration() {
  64         snippetRegistrationClosed = true;
  65     }
  66 }