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dominancefrontiers.h
Go to the documentation of this file.00001 // $Id: dominancefrontiers.h,v 1.9 2003/08/07 23:14:13 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_DOMINANCEFRONTIERS_H 00039 #define CBZ_DOMINANCEFRONTIERS_H 00040 00041 #include <bitset> 00042 #include "ref_clone_changer.h" 00043 #include "dominators.h" 00044 00045 00046 // DominanceFrontiers dfs(my_proc); 00047 // basicblock_list & dfx = dfs[x]; 00048 00049 // From dominators: typedef bitset<1024> basicblock_bitset; 00050 00051 typedef map< basicblockNode *, basicblock_bitset > basicblockset_map; 00052 typedef basicblockset_map::iterator basicblockset_map_p; 00053 00054 typedef map< basicblockNode *, basicblock_list> basicblock_map; 00055 typedef basicblock_map::iterator basicblock_map_p; 00056 00057 typedef vector<basicblockNode *> basicblock_vec; 00058 typedef basicblock_vec::iterator basicblock_vec_p; 00059 00072 class DominanceFrontiers : public basicblock_map 00073 { 00074 private: 00075 00077 procNode * _proc; 00078 00080 basicblockNode * _root; 00081 00083 basicblock_vec df_vec; 00084 00085 00086 void depth_first_search(basicblockNode * node); 00087 void compute_dominance_frontiers(); 00088 int _index; 00089 00090 public: 00091 00092 DominanceFrontiers(procNode * proc); 00093 }; 00094 00095 #endif //