001    /*
002     *  This file is part of the Jikes RVM project (http://jikesrvm.org).
003     *
004     *  This file is licensed to You under the Eclipse Public License (EPL);
005     *  You may not use this file except in compliance with the License. You
006     *  may obtain a copy of the License at
007     *
008     *      http://www.opensource.org/licenses/eclipse-1.0.php
009     *
010     *  See the COPYRIGHT.txt file distributed with this work for information
011     *  regarding copyright ownership.
012     */
013    package org.jikesrvm.compilers.opt.specialization;
014    
015    import org.jikesrvm.classloader.NormalMethod;
016    import org.jikesrvm.compilers.common.CompiledMethod;
017    
018    /**
019     * This is the top-level class to support specialized versions of Java methods
020     */
021    public final class SpecializedMethod {
022      /**
023       * The method that was specialized
024       */
025      final NormalMethod method;
026    
027      /**
028       * Corresponding compiled method
029       */
030      CompiledMethod compiledMethod;
031    
032      /**
033       * Specialized Method index into the SpecializedMethods table
034       */
035      final int smid;
036    
037      /**
038       * Encodes the rules for generating the specialized code.
039       */
040      final SpecializationContext context;
041    
042      /**
043       * constructor for OPT compiler.
044       */
045      SpecializedMethod(NormalMethod source, SpecializationContext context) {
046        this.method = source;
047        this.context = context;
048        this.smid = SpecializedMethodPool.createSpecializedMethodID();
049      }
050    
051      /**
052       * generate the specialized code for this method
053       */
054      void compile() {
055        compiledMethod = context.specialCompile(method);
056      }
057    
058      public NormalMethod getMethod() {
059        return method;
060      }
061    
062      public SpecializationContext getSpecializationContext() {
063        return context;
064      }
065    
066      public CompiledMethod getCompiledMethod() {
067        return compiledMethod;
068      }
069    
070      public void setCompiledMethod(CompiledMethod cm) {
071        compiledMethod = cm;
072      }
073    
074      public int getSpecializedMethodIndex() {
075        return smid;
076      }
077    
078      public String toString() {
079        return "Specialized " + method + "  (Context: " + context + ")";
080      }
081    }