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worklist.h
Go to the documentation of this file.00001 // $Id: worklist.h,v 1.8 2003/08/07 23:14:33 pnav Exp $ 00002 // ---------------------------------------------------------------------- 00003 // 00004 // C-Breeze 00005 // C Compiler Framework 00006 // 00007 // Copyright (c) 2000 University of Texas at Austin 00008 // 00009 // Samuel Z. Guyer 00010 // Daniel A. Jimenez 00011 // Calvin Lin 00012 // 00013 // Permission is hereby granted, free of charge, to any person 00014 // obtaining a copy of this software and associated documentation 00015 // files (the "Software"), to deal in the Software without 00016 // restriction, including without limitation the rights to use, copy, 00017 // modify, merge, publish, distribute, sublicense, and/or sell copies 00018 // of the Software, and to permit persons to whom the Software is 00019 // furnished to do so, subject to the following conditions: 00020 // 00021 // The above copyright notice and this permission notice shall be 00022 // included in all copies or substantial portions of the Software. 00023 // 00024 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 00025 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00026 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00027 // NONINFRINGEMENT. IN NO EVENT SHALL THE UNIVERSITY OF TEXAS AT 00028 // AUSTIN BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 00029 // IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF 00030 // OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00031 // THE SOFTWARE. 00032 // 00033 // We acknowledge the C-to-C Translator from MIT Laboratory for 00034 // Computer Science for inspiring parts of the C-Breeze design. 00035 // 00036 // ---------------------------------------------------------------------- 00037 00038 #ifndef CBZ_WORKLIST_H 00039 #define CBZ_WORKLIST_H 00040 00041 #include <bitset> 00042 00043 typedef bitset<4096> worklist_set; 00044 00045 class workList 00046 { 00047 private: 00048 00049 worklist_set _worklist; 00050 int _cur_position; 00051 int _cur_size; 00052 int _max_size; 00053 00054 public: 00055 00056 workList() 00057 : _worklist(), 00058 _cur_position(0), 00059 _cur_size(0), 00060 _max_size(-1) 00061 {} 00062 00063 int get_next_block(); 00064 bool is_empty() const; 00065 void add_block(int position); 00066 void remove_block(int position); 00067 void add_all_blocks(); 00068 void skip_current_block(); 00069 00070 void max_size(int size) { _max_size = size; } 00071 }; 00072 00073 #endif // CBZ_WORKLIST_H