1 /*
   2  * Copyright (c) 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 jdk.vm.ci.code;
  24 
  25 import jdk.vm.ci.meta.ResolvedJavaMethod;
  26 
  27 /**
  28  * Represents a request to compile a method.
  29  */
  30 public class CompilationRequest {
  31 
  32     private final ResolvedJavaMethod method;
  33 
  34     private final int entryBCI;
  35 
  36     /**
  37      * Creates a request to compile a method starting at its entry point.
  38      *
  39      * @param method the method to be compiled
  40      */
  41     public CompilationRequest(ResolvedJavaMethod method) {
  42         this(method, -1);
  43     }
  44 
  45     /**
  46      * Creates a request to compile a method starting at a given BCI.
  47      *
  48      * @param method the method to be compiled
  49      * @param entryBCI the bytecode index (BCI) at which to start compiling where -1 denotes the
  50      *            method's entry point
  51      */
  52     public CompilationRequest(ResolvedJavaMethod method, int entryBCI) {
  53         assert method != null;
  54         this.method = method;
  55         this.entryBCI = entryBCI;
  56     }
  57 
  58     /**
  59      * Gets the method to be compiled.
  60      */
  61     public ResolvedJavaMethod getMethod() {
  62         return method;
  63     }
  64 
  65     /**
  66      * Gets the bytecode index (BCI) at which to start compiling where -1 denotes a non-OSR
  67      * compilation request and all other values denote an on stack replacement (OSR) compilation
  68      * request.
  69      */
  70     public int getEntryBCI() {
  71         return entryBCI;
  72     }
  73 
  74     @Override
  75     public String toString() {
  76         return method.format("%H.%n(%p)@" + entryBCI);
  77     }
  78 }