00001 /* Copyright 1994 - 1996 LongView Technologies L.L.C. $Revision: 1.1 $ */ 00002 /* Copyright (c) 2006, Sun Microsystems, Inc. 00003 All rights reserved. 00004 00005 Redistribution and use in source and binary forms, with or without modification, are permitted provided that the 00006 following conditions are met: 00007 00008 * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 00009 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following 00010 disclaimer in the documentation and/or other materials provided with the distribution. 00011 * Neither the name of Sun Microsystems nor the names of its contributors may be used to endorse or promote products derived 00012 from this software without specific prior written permission. 00013 00014 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT 00015 NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 00016 THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 00017 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00018 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 00019 OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE 00020 00021 00022 */ 00023 00024 # ifdef DELTA_COMPILER 00025 00026 // CostModel holds the 'costs' for all bytecodes. These costs 00027 // are used to estimate the inline cost for a given methodOop. 00028 00029 class CostModel: AllStatic { 00030 private: 00031 static int _cost[Bytecodes::number_of_codes]; 00032 00033 public: 00034 static int cost_for(Bytecodes::Code code) { return _cost[(int)code]; } 00035 00036 static void set_default_costs(); // sets default costs 00037 static void set_cost_for_all(int cost); // sets cost for all instructions 00038 static void set_cost_for_code(Bytecodes::Code code, int cost); // sets cost for individual instruction 00039 static void set_cost_for_type(Bytecodes::CodeType type, int cost); // sets cost for all instructions of a certain type 00040 static void set_cost_for_send(Bytecodes::SendType send, int cost); // sets cost for all sends of a certain type 00041 00042 static void print(); 00043 }; 00044 00045 # endif