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pointervalue.h
Go to the documentation of this file.00001 // $Id: pointervalue.h,v 1.10 2003/08/07 23:14:31 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_POINTERVALUE_H 00039 #define CBZ_POINTERVALUE_H 00040 00041 #include "pointeroptions.h" 00042 #include "location.h" 00043 #include "memorymodel.h" 00044 #include "memoryblock.h" 00045 #include "ipanalysis.h" 00046 #include "handle.h" 00047 00048 typedef pair< memoryBlock *, memoryUse * > pointer_use; 00049 typedef set< pointer_use > pointer_use_set; 00050 typedef pointer_use_set::iterator pointer_use_set_p; 00051 00059 class pointerValue 00060 { 00061 public: 00062 00063 static int count; 00064 00065 public: 00066 00072 memoryblock_set blocks; 00073 00078 const constant * constant_value; 00079 00084 bool is_address; 00085 00090 bool is_a_use; 00091 00097 memoryblock_set dereferenced; 00098 00099 public: 00100 00103 pointerValue(); 00104 00107 pointerValue(memoryBlock *mb, bool is_address = false); 00108 00112 pointerValue(const pointerValue & other); 00113 00117 ~pointerValue(); 00118 00121 inline void copy_pointers_from(const pointerValue & other) { 00122 blocks = other.blocks; 00123 is_address = other.is_address; 00124 dereferenced = other.dereferenced; 00125 } 00126 00129 inline void initialize_pointers() { 00130 blocks.clear(); 00131 is_address = false; 00132 dereferenced.clear(); 00133 } 00134 00137 inline void add_blocks_from(const pointerValue & other) { 00138 blocks.insert(other.blocks.begin(), other.blocks.end()); 00139 is_address = other.is_address; 00140 dereferenced.insert(other.dereferenced.begin(), 00141 other.dereferenced.end()); 00142 } 00143 00148 inline bool is_lvalue() { return ( ! is_address && ! blocks.empty()); } 00149 }; 00150 00151 typedef list< pointerValue > pointervalue_list; 00152 typedef pointervalue_list::iterator pointervalue_list_p; 00153 00154 #endif // CBZ_POINTERVALUE_H