CoreEngine.h revision 4e82d3cf6fd4c907265e3fa3aac0a835c35dc759
1d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis//==- CoreEngine.h - Path-Sensitive Dataflow Engine ----------------*- C++ -*-// 21eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump// 3f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek// The LLVM Compiler Infrastructure 4f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek// 5f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek// This file is distributed under the University of Illinois Open Source 6f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek// License. See LICENSE.TXT for details. 7f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek// 8f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek//===----------------------------------------------------------------------===// 9f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek// 10f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek// This file defines a generic engine for intraprocedural, path-sensitive, 118e49dd6e7e73b275a74338a5127a524f0765303cTed Kremenek// dataflow analysis via graph reachability. 12f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek// 13f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek//===----------------------------------------------------------------------===// 14f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek 15d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis#ifndef LLVM_CLANG_GR_COREENGINE 16d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis#define LLVM_CLANG_GR_COREENGINE 17f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek 1899c6ad3f22b865d0f4cce52bc36904403c9ed4c4Ted Kremenek#include "clang/AST/Expr.h" 199b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/ExplodedGraph.h" 209b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/WorkList.h" 219b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/BlockCounter.h" 22f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek#include "llvm/ADT/OwningPtr.h" 23f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek 24f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremeneknamespace clang { 250111f575b968e423dccae439e501225b8314b257Zhongxing Xu 26ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenekclass ProgramPointTag; 27ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek 289ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremeneknamespace ento { 295a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 30a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaksclass NodeBuilder; 31a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks 3224f1a967741ff9f8025ee23be12ba6feacc31f77Ted Kremenek//===----------------------------------------------------------------------===// 33d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis/// CoreEngine - Implements the core logic of the graph-reachability 34922059dec59c7bed235da01aff75ae522a369811Ted Kremenek/// analysis. It traverses the CFG and generates the ExplodedGraph. 35922059dec59c7bed235da01aff75ae522a369811Ted Kremenek/// Program "states" are treated as opaque void pointers. 36d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis/// The template class CoreEngine (which subclasses CoreEngine) 37922059dec59c7bed235da01aff75ae522a369811Ted Kremenek/// provides the matching component to the engine that knows the actual types 38922059dec59c7bed235da01aff75ae522a369811Ted Kremenek/// for states. Note that this engine only dispatches to transfer functions 39922059dec59c7bed235da01aff75ae522a369811Ted Kremenek/// at the statement and block-level. The analyses themselves must implement 40922059dec59c7bed235da01aff75ae522a369811Ted Kremenek/// any transfer function logic and the sub-expression level (if any). 41d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidisclass CoreEngine { 42f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks friend class CommonNodeBuilder; 43f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks friend class NodeBuilder; 44d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class StmtNodeBuilder; 4527c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek friend class GenericNodeBuilderImpl; 46d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class BranchNodeBuilder; 47d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class IndirectGotoNodeBuilder; 48d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class SwitchNodeBuilder; 49e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek friend class EndOfFunctionNodeBuilder; 50d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class CallEnterNodeBuilder; 51d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class CallExitNodeBuilder; 520111f575b968e423dccae439e501225b8314b257Zhongxing Xu 53a7a8a450d908b34fa5f569f2e694ebd4b61aae2fTom Carepublic: 54a7a8a450d908b34fa5f569f2e694ebd4b61aae2fTom Care typedef std::vector<std::pair<BlockEdge, const ExplodedNode*> > 5566750fa464ace9f8c41666c8585ec71a248c1ccaTed Kremenek BlocksExhausted; 56422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek 57422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek typedef std::vector<std::pair<const CFGBlock*, const ExplodedNode*> > 58422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek BlocksAborted; 59422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek 60a7a8a450d908b34fa5f569f2e694ebd4b61aae2fTom Careprivate: 61a7a8a450d908b34fa5f569f2e694ebd4b61aae2fTom Care 62d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis SubEngine& SubEng; 630111f575b968e423dccae439e501225b8314b257Zhongxing Xu 64f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek /// G - The simulation graph. Each node is a (location,state) pair. 6538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::OwningPtr<ExplodedGraph> G; 661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 67f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek /// WList - A set of queued nodes that need to be processed by the 68f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek /// worklist algorithm. It is up to the implementation of WList to decide 69f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek /// the order that nodes are processed. 70d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis WorkList* WList; 711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 72d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// BCounterFactory - A factory object for created BlockCounter objects. 738e49dd6e7e73b275a74338a5127a524f0765303cTed Kremenek /// These are used to record for key nodes in the ExplodedGraph the 748e49dd6e7e73b275a74338a5127a524f0765303cTed Kremenek /// number of times different CFGBlocks have been visited along a path. 75d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis BlockCounter::Factory BCounterFactory; 76f598087b4adfea164acdd5b53ea2951bde740a2dTed Kremenek 77f598087b4adfea164acdd5b53ea2951bde740a2dTed Kremenek /// The locations where we stopped doing work because we visited a location 78f598087b4adfea164acdd5b53ea2951bde740a2dTed Kremenek /// too many times. 7966750fa464ace9f8c41666c8585ec71a248c1ccaTed Kremenek BlocksExhausted blocksExhausted; 80422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek 81422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek /// The locations where we stopped because the engine aborted analysis, 82422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek /// usually because it could not reason about something. 83422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek BlocksAborted blocksAborted; 841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8518c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek void generateNode(const ProgramPoint &Loc, 8618c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *State, 879c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *Pred); 881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 899c378f705405d37f49795d5e915989de774fe11fTed Kremenek void HandleBlockEdge(const BlockEdge &E, ExplodedNode *Pred); 909c378f705405d37f49795d5e915989de774fe11fTed Kremenek void HandleBlockEntrance(const BlockEntrance &E, ExplodedNode *Pred); 919c378f705405d37f49795d5e915989de774fe11fTed Kremenek void HandleBlockExit(const CFGBlock *B, ExplodedNode *Pred); 929c378f705405d37f49795d5e915989de774fe11fTed Kremenek void HandlePostStmt(const CFGBlock *B, unsigned StmtIdx, ExplodedNode *Pred); 931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 949c378f705405d37f49795d5e915989de774fe11fTed Kremenek void HandleBranch(const Stmt *Cond, const Stmt *Term, const CFGBlock *B, 959c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *Pred); 96102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor void HandleCallEnter(const CallEnter &L, const CFGBlock *Block, 97102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor unsigned Index, ExplodedNode *Pred); 98102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor void HandleCallExit(const CallExit &L, ExplodedNode *Pred); 990111f575b968e423dccae439e501225b8314b257Zhongxing Xu 100f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenekprivate: 101d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis CoreEngine(const CoreEngine&); // Do not implement. 102d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis CoreEngine& operator=(const CoreEngine&); 1031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 104f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenekpublic: 105d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// Construct a CoreEngine object to analyze the provided CFG using 1060111f575b968e423dccae439e501225b8314b257Zhongxing Xu /// a DFS exploration of the exploded graph. 107d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis CoreEngine(SubEngine& subengine) 108d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis : SubEng(subengine), G(new ExplodedGraph()), 10955825aa2d88fe82bf3622f195046ae48532d3106Ted Kremenek WList(WorkList::makeBFS()), 110f598087b4adfea164acdd5b53ea2951bde740a2dTed Kremenek BCounterFactory(G->getAllocator()) {} 1110111f575b968e423dccae439e501225b8314b257Zhongxing Xu 112d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// Construct a CoreEngine object to analyze the provided CFG and to 1130111f575b968e423dccae439e501225b8314b257Zhongxing Xu /// use the provided worklist object to execute the worklist algorithm. 114d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis /// The CoreEngine object assumes ownership of 'wlist'. 115d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis CoreEngine(WorkList* wlist, SubEngine& subengine) 116d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis : SubEng(subengine), G(new ExplodedGraph()), WList(wlist), 117f598087b4adfea164acdd5b53ea2951bde740a2dTed Kremenek BCounterFactory(G->getAllocator()) {} 1180111f575b968e423dccae439e501225b8314b257Zhongxing Xu 119d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis ~CoreEngine() { 1200111f575b968e423dccae439e501225b8314b257Zhongxing Xu delete WList; 1210111f575b968e423dccae439e501225b8314b257Zhongxing Xu } 1220111f575b968e423dccae439e501225b8314b257Zhongxing Xu 1230111f575b968e423dccae439e501225b8314b257Zhongxing Xu /// getGraph - Returns the exploded graph. 124031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu ExplodedGraph& getGraph() { return *G.get(); } 1251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1260111f575b968e423dccae439e501225b8314b257Zhongxing Xu /// takeGraph - Returns the exploded graph. Ownership of the graph is 127fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner /// transferred to the caller. 128031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu ExplodedGraph* takeGraph() { return G.take(); } 1290111f575b968e423dccae439e501225b8314b257Zhongxing Xu 130f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek /// ExecuteWorkList - Run the worklist algorithm for a maximum number of 131f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek /// steps. Returns true if there is still simulation state on the worklist. 1322ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu bool ExecuteWorkList(const LocationContext *L, unsigned Steps, 13318c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *InitState); 13418c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek void ExecuteWorkListWithInitialState(const LocationContext *L, 13518c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek unsigned Steps, 13618c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *InitState, 1372ce43c8f43254a9edea53a20dc0e69195bc82ae0Zhongxing Xu ExplodedNodeSet &Dst); 138bc42c533e7d3d946704a49e242939dd232f33072Tom Care 139bc42c533e7d3d946704a49e242939dd232f33072Tom Care // Functions for external checking of whether we have unfinished work 140422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek bool wasBlockAborted() const { return !blocksAborted.empty(); } 141422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek bool wasBlocksExhausted() const { return !blocksExhausted.empty(); } 142422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek bool hasWorkRemaining() const { return wasBlocksExhausted() || 143422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek WList->hasWork() || 144422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek wasBlockAborted(); } 145422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek 146422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek /// Inform the CoreEngine that a basic block was aborted because 147422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek /// it could not be completely analyzed. 148422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek void addAbortedBlock(const ExplodedNode *node, const CFGBlock *block) { 149422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek blocksAborted.push_back(std::make_pair(block, node)); 150422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek } 151422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek 152d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis WorkList *getWorkList() const { return WList; } 153f598087b4adfea164acdd5b53ea2951bde740a2dTed Kremenek 154422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek BlocksExhausted::const_iterator blocks_exhausted_begin() const { 15566750fa464ace9f8c41666c8585ec71a248c1ccaTed Kremenek return blocksExhausted.begin(); 156f598087b4adfea164acdd5b53ea2951bde740a2dTed Kremenek } 157422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek BlocksExhausted::const_iterator blocks_exhausted_end() const { 15866750fa464ace9f8c41666c8585ec71a248c1ccaTed Kremenek return blocksExhausted.end(); 159f598087b4adfea164acdd5b53ea2951bde740a2dTed Kremenek } 160422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek BlocksAborted::const_iterator blocks_aborted_begin() const { 161422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek return blocksAborted.begin(); 162422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek } 163422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek BlocksAborted::const_iterator blocks_aborted_end() const { 164422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek return blocksAborted.end(); 165422ab7a49a9a4252dbc6350e49d7a5708337b9c7Ted Kremenek } 166a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks 167a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks /// Enqueue the results of the node builder onto the work list. 168a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks void enqueue(NodeBuilder &NB); 169a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks}; 170a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks 171a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaksstruct NodeBuilderContext { 172a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks CoreEngine &Eng; 173a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks const CFGBlock *Block; 174ad62deeb70e97da6bd514dd390ea1ce6af6ad81dAnna Zaks NodeBuilderContext(CoreEngine &E, const CFGBlock *B) 175ad62deeb70e97da6bd514dd390ea1ce6af6ad81dAnna Zaks : Eng(E), Block(B) { assert(B); } 176f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek}; 1771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 178f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks/// This is the simplest builder which generates nodes in the ExplodedGraph. 179f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaksclass NodeBuilder { 180a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaksprotected: 181f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks friend class StmtNodeBuilder; 182f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks 183ad62deeb70e97da6bd514dd390ea1ce6af6ad81dAnna Zaks ExplodedNode *BuilderPred; 184319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaks 185319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaks// TODO: Context should become protected after refactoring is done. 186319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zakspublic: 187cd656cab3fa3dd4b0c974c6ae1c0e60880b18c22Anna Zaks const NodeBuilderContext &C; 188319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaksprotected: 189319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaks 1903152b3cb5b6a2f797d0972c81a5eb3fd69c0d620Anna Zaks /// Specifies if the builder results have been finalized. For example, if it 1913152b3cb5b6a2f797d0972c81a5eb3fd69c0d620Anna Zaks /// is set to false, autotransitions are yet to be generated. 192f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks bool Finalized; 193f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks 1944e82d3cf6fd4c907265e3fa3aac0a835c35dc759Anna Zaks bool HasGeneratedNodes; 1954e82d3cf6fd4c907265e3fa3aac0a835c35dc759Anna Zaks 196f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks /// \brief The frontier set - a set of nodes which need to be propagated after 197f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks /// the builder dies. 198f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks typedef llvm::SmallPtrSet<ExplodedNode*,5> DeferredTy; 199f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks DeferredTy Deferred; 20071fdf469a3b6d7d557b0bfba36e8659f4966c565Anna Zaks 201a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks BlockCounter getBlockCounter() const { return C.Eng.WList->getBlockCounter();} 202a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks 2033152b3cb5b6a2f797d0972c81a5eb3fd69c0d620Anna Zaks /// Checkes if the results are ready. 2043152b3cb5b6a2f797d0972c81a5eb3fd69c0d620Anna Zaks virtual bool checkResults() { 205a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks if (!Finalized) 206a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks return false; 207a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks for (DeferredTy::iterator I=Deferred.begin(), E=Deferred.end(); I!=E; ++I) 208a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks if ((*I)->isSink()) 209a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks return false; 210a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks return true; 211a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks } 212f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks 2133152b3cb5b6a2f797d0972c81a5eb3fd69c0d620Anna Zaks /// Allow subclasses to finalize results before result_begin() is executed. 2143152b3cb5b6a2f797d0972c81a5eb3fd69c0d620Anna Zaks virtual void finalizeResults() {} 215f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks 216f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks ExplodedNode *generateNodeImpl(const ProgramPoint &PP, 217f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks const ProgramState *State, 218f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks ExplodedNode *Pred, 219f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks bool MarkAsSink = false); 220f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks 221f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zakspublic: 2223152b3cb5b6a2f797d0972c81a5eb3fd69c0d620Anna Zaks NodeBuilder(ExplodedNode *N, NodeBuilderContext &Ctx, bool F = true) 2234e82d3cf6fd4c907265e3fa3aac0a835c35dc759Anna Zaks : BuilderPred(N), C(Ctx), Finalized(F), HasGeneratedNodes(false) { 224ad62deeb70e97da6bd514dd390ea1ce6af6ad81dAnna Zaks assert(!N->isSink()); 225ad62deeb70e97da6bd514dd390ea1ce6af6ad81dAnna Zaks Deferred.insert(N); 226ad62deeb70e97da6bd514dd390ea1ce6af6ad81dAnna Zaks } 227a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks 228cd656cab3fa3dd4b0c974c6ae1c0e60880b18c22Anna Zaks /// Create a new builder using the parent builder's context. 2293152b3cb5b6a2f797d0972c81a5eb3fd69c0d620Anna Zaks NodeBuilder(ExplodedNode *N, const NodeBuilder &ParentBldr, bool F = true) 2304e82d3cf6fd4c907265e3fa3aac0a835c35dc759Anna Zaks : BuilderPred(N), C(ParentBldr.C), Finalized(F), HasGeneratedNodes(false) { 231cd656cab3fa3dd4b0c974c6ae1c0e60880b18c22Anna Zaks assert(!N->isSink()); 232cd656cab3fa3dd4b0c974c6ae1c0e60880b18c22Anna Zaks Deferred.insert(N); 233cd656cab3fa3dd4b0c974c6ae1c0e60880b18c22Anna Zaks } 234cd656cab3fa3dd4b0c974c6ae1c0e60880b18c22Anna Zaks 235a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks virtual ~NodeBuilder() {} 236f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks 237f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks /// \brief Generates a node in the ExplodedGraph. 238f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks /// 239f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks /// When a node is marked as sink, the exploration from the node is stopped - 240f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks /// the node becomes the last node on the path. 241f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks ExplodedNode *generateNode(const ProgramPoint &PP, 242f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks const ProgramState *State, 243f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks ExplodedNode *Pred, 244f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks bool MarkAsSink = false) { 245f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks return generateNodeImpl(PP, State, Pred, MarkAsSink); 246f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks } 247f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks 2484e82d3cf6fd4c907265e3fa3aac0a835c35dc759Anna Zaks // TODO: will get removed. 249f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks bool hasGeneratedNodes() const { 2504e82d3cf6fd4c907265e3fa3aac0a835c35dc759Anna Zaks return HasGeneratedNodes; 251f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks } 252f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks 253f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks typedef DeferredTy::iterator iterator; 254f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks /// \brief Iterators through the results frontier. 255a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks inline iterator results_begin() { 256a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks finalizeResults(); 257a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks assert(checkResults()); 258a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks return Deferred.begin(); 259a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks } 260a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks inline iterator results_end() { 261a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks finalizeResults(); 262a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks return Deferred.end(); 263a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks } 264f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks 265319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaks /// \brief Return the CFGBlock associated with this builder. 266319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaks const CFGBlock *getBlock() const { return C.Block; } 267319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaks 268a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks /// \brief Returns the number of times the current basic block has been 269a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks /// visited on the exploded graph path. 270a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks unsigned getCurrentBlockCount() const { 271a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks return getBlockCounter().getNumVisited( 2729a1e3ab97c48a0381cce449b833c56997048a6d1Anna Zaks BuilderPred->getLocationContext()->getCurrentStackFrame(), 2739a1e3ab97c48a0381cce449b833c56997048a6d1Anna Zaks C.Block->getBlockID()); 274a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks } 275f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks}; 276f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks 277f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaksclass CommonNodeBuilder { 278f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaksprotected: 279f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks ExplodedNode *Pred; 280f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks CoreEngine& Eng; 281f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks 282f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks CommonNodeBuilder(CoreEngine* E, ExplodedNode *P) : Pred(P), Eng(*E) {} 283f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks BlockCounter getBlockCounter() const { return Eng.WList->getBlockCounter(); } 284f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks}; 285f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks 286f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks 287319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaksclass StmtNodeBuilder: public NodeBuilder { 288f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks const unsigned Idx; 289031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu 290031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xupublic: 291031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu bool PurgingDeadSymbols; 292031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu bool BuildSinks; 293319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaks // TODO: Remove the flag. We should be able to use the method in the parent. 294b4857264b8d3d861f688cdaa174aab30e0729a73Ted Kremenek bool hasGeneratedNode; 295031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu ProgramPoint::Kind PointKind; 296ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek const ProgramPointTag *Tag; 2971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2989c378f705405d37f49795d5e915989de774fe11fTed Kremenek void GenerateAutoTransition(ExplodedNode *N); 2991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 300f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenekpublic: 301319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaks StmtNodeBuilder(ExplodedNode *N, unsigned idx, NodeBuilderContext &Ctx); 3021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 303d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis ~StmtNodeBuilder(); 304f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks 30518c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *generateNode(const Stmt *S, 30618c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *St, 30718c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *Pred, 30818c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ProgramPoint::Kind K, 309319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaks const ProgramPointTag *tag = 0, 310319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaks bool MarkAsSink = false) { 3111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (PurgingDeadSymbols) 3121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump K = ProgramPoint::PostPurgeDeadSymbolsKind; 313031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu 314319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaks const ProgramPoint &L = ProgramPoint::getProgramPoint(S, K, 315319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaks Pred->getLocationContext(), tag ? tag : Tag); 316319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaks return generateNodeImpl(L, St, Pred, MarkAsSink); 317031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu } 3181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31918c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *generateNode(const Stmt *S, 32018c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *St, 321ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek ExplodedNode *Pred, 322ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek const ProgramPointTag *tag = 0) { 3234bac726dadb09ee38bab8147f1e706380368b362Ted Kremenek return generateNode(S, St, Pred, PointKind, tag); 324031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu } 325031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu 32618c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *generateNode(const ProgramPoint &PP, 32718c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *State, 3289c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *Pred) { 329319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaks return generateNodeImpl(PP, State, Pred, false); 330102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor } 331102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 332331b0ac44b9eb0ffcba66b4f3f3f9adb27c2434fTed Kremenek /// getStmt - Return the current block-level expression associated with 333331b0ac44b9eb0ffcba66b4f3f3f9adb27c2434fTed Kremenek /// this builder. 3349c378f705405d37f49795d5e915989de774fe11fTed Kremenek const Stmt *getStmt() const { 335319a9184d5ca9f77622b45ae15c08f6b9ce01621Anna Zaks const CFGStmt *CS = (*C.Block)[Idx].getAs<CFGStmt>(); 3363c0349e87cdbd7316d06d2411d86ee1086e717a5Ted Kremenek return CS ? CS->getStmt() : 0; 337b36cd3e1757fb4fcd9509f35558c847b04bef35fZhongxing Xu } 3381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 339598278bee8e5797bc73d24d6ac8a1d6ff6413caeZhongxing Xu unsigned getIndex() const { return Idx; } 340598278bee8e5797bc73d24d6ac8a1d6ff6413caeZhongxing Xu 34118c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *MakeNode(ExplodedNodeSet &Dst, 34218c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const Stmt *S, 34318c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *Pred, 34418c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *St) { 345bf4e419d996bf42e4933cada610d973a0fcc40ebTed Kremenek return MakeNode(Dst, S, Pred, St, PointKind); 346bf4e419d996bf42e4933cada610d973a0fcc40ebTed Kremenek } 3471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34818c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *MakeNode(ExplodedNodeSet &Dst, 34918c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const Stmt *S, 35018c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *Pred, 35118c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *St, 35218c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ProgramPoint::Kind K); 3531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35418c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *MakeSinkNode(ExplodedNodeSet &Dst, 35518c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const Stmt *S, 35618c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *Pred, 35718c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *St) { 35870a733e64e2379a654631a14fa29e46761d5f80dTed Kremenek bool Tmp = BuildSinks; 35970a733e64e2379a654631a14fa29e46761d5f80dTed Kremenek BuildSinks = true; 3609c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *N = MakeNode(Dst, S, Pred, St); 36170a733e64e2379a654631a14fa29e46761d5f80dTed Kremenek BuildSinks = Tmp; 36270a733e64e2379a654631a14fa29e46761d5f80dTed Kremenek return N; 36370a733e64e2379a654631a14fa29e46761d5f80dTed Kremenek } 364f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks 365f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks void importNodesFromBuilder(const NodeBuilder &NB) { 3664e82d3cf6fd4c907265e3fa3aac0a835c35dc759Anna Zaks ExplodedNode *NBPred = const_cast<ExplodedNode*>(NB.BuilderPred); 367f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks if (NB.hasGeneratedNodes()) { 368f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks Deferred.erase(NBPred); 369f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks Deferred.insert(NB.Deferred.begin(), NB.Deferred.end()); 370f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks } 371f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks } 372f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek}; 3731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 374a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaksclass BranchNodeBuilder: public NodeBuilder { 3759c378f705405d37f49795d5e915989de774fe11fTed Kremenek const CFGBlock *DstT; 3769c378f705405d37f49795d5e915989de774fe11fTed Kremenek const CFGBlock *DstF; 37752a16499df87730c0252b431abdf2b2e32d756a6Ted Kremenek 378520035439d7133064325c4df6378c5a8f2f05539Ted Kremenek bool InFeasibleTrue; 379520035439d7133064325c4df6378c5a8f2f05539Ted Kremenek bool InFeasibleFalse; 3801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3817d7fe6d539b3bdb1701835223cca306c325614a7Ted Kremenekpublic: 382cd656cab3fa3dd4b0c974c6ae1c0e60880b18c22Anna Zaks BranchNodeBuilder(ExplodedNode *Pred, NodeBuilderContext &C, 383ad62deeb70e97da6bd514dd390ea1ce6af6ad81dAnna Zaks const CFGBlock *dstT, const CFGBlock *dstF) 3844e82d3cf6fd4c907265e3fa3aac0a835c35dc759Anna Zaks : NodeBuilder(Pred, C), DstT(dstT), DstF(dstF), 3854e82d3cf6fd4c907265e3fa3aac0a835c35dc759Anna Zaks InFeasibleTrue(!DstT), InFeasibleFalse(!DstF) {} 386031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu 387cd656cab3fa3dd4b0c974c6ae1c0e60880b18c22Anna Zaks /// Create a new builder using the parent builder's context. 388cd656cab3fa3dd4b0c974c6ae1c0e60880b18c22Anna Zaks BranchNodeBuilder(ExplodedNode *Pred, BranchNodeBuilder &ParentBldr) 3894e82d3cf6fd4c907265e3fa3aac0a835c35dc759Anna Zaks : NodeBuilder(Pred, ParentBldr), DstT(ParentBldr.DstT), 3904e82d3cf6fd4c907265e3fa3aac0a835c35dc759Anna Zaks DstF(ParentBldr.DstF), 3914e82d3cf6fd4c907265e3fa3aac0a835c35dc759Anna Zaks InFeasibleTrue(!DstT), InFeasibleFalse(!DstF) {} 3928083414ee7cc8f5c807ed6a4e120fb4e0ab50ff8Ted Kremenek 393a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks ExplodedNode *generateNode(const ProgramState *State, bool branch, 394a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks ExplodedNode *Pred = 0); 3951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3969c378f705405d37f49795d5e915989de774fe11fTed Kremenek const CFGBlock *getTargetBlock(bool branch) const { 3978e49dd6e7e73b275a74338a5127a524f0765303cTed Kremenek return branch ? DstT : DstF; 3981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40052a16499df87730c0252b431abdf2b2e32d756a6Ted Kremenek void markInfeasible(bool branch) { 401520035439d7133064325c4df6378c5a8f2f05539Ted Kremenek if (branch) 4024e82d3cf6fd4c907265e3fa3aac0a835c35dc759Anna Zaks InFeasibleTrue = true; 403520035439d7133064325c4df6378c5a8f2f05539Ted Kremenek else 4044e82d3cf6fd4c907265e3fa3aac0a835c35dc759Anna Zaks InFeasibleFalse = true; 405520035439d7133064325c4df6378c5a8f2f05539Ted Kremenek } 4061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 407520035439d7133064325c4df6378c5a8f2f05539Ted Kremenek bool isFeasible(bool branch) { 408520035439d7133064325c4df6378c5a8f2f05539Ted Kremenek return branch ? !InFeasibleTrue : !InFeasibleFalse; 40952a16499df87730c0252b431abdf2b2e32d756a6Ted Kremenek } 4107d7fe6d539b3bdb1701835223cca306c325614a7Ted Kremenek}; 411031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu 412d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidisclass IndirectGotoNodeBuilder { 413d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis CoreEngine& Eng; 4149c378f705405d37f49795d5e915989de774fe11fTed Kremenek const CFGBlock *Src; 4159c378f705405d37f49795d5e915989de774fe11fTed Kremenek const CFGBlock &DispatchBlock; 4169c378f705405d37f49795d5e915989de774fe11fTed Kremenek const Expr *E; 4179c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *Pred; 418031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu 419754607e7cff2d902d9af8b771409449fb2f8d2bfTed Kremenekpublic: 4209c378f705405d37f49795d5e915989de774fe11fTed Kremenek IndirectGotoNodeBuilder(ExplodedNode *pred, const CFGBlock *src, 4219c378f705405d37f49795d5e915989de774fe11fTed Kremenek const Expr *e, const CFGBlock *dispatch, CoreEngine* eng) 42203509aea098772644bf4662dc1c88634818ceeccZhongxing Xu : Eng(*eng), Src(src), DispatchBlock(*dispatch), E(e), Pred(pred) {} 423754607e7cff2d902d9af8b771409449fb2f8d2bfTed Kremenek 424031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu class iterator { 42503509aea098772644bf4662dc1c88634818ceeccZhongxing Xu CFGBlock::const_succ_iterator I; 4261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 427d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class IndirectGotoNodeBuilder; 42803509aea098772644bf4662dc1c88634818ceeccZhongxing Xu iterator(CFGBlock::const_succ_iterator i) : I(i) {} 429754607e7cff2d902d9af8b771409449fb2f8d2bfTed Kremenek public: 4301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4319c378f705405d37f49795d5e915989de774fe11fTed Kremenek iterator &operator++() { ++I; return *this; } 4329c378f705405d37f49795d5e915989de774fe11fTed Kremenek bool operator!=(const iterator &X) const { return I != X.I; } 4331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 434ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner const LabelDecl *getLabel() const { 435ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner return llvm::cast<LabelStmt>((*I)->getLabel())->getDecl(); 43624f1a967741ff9f8025ee23be12ba6feacc31f77Ted Kremenek } 4371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 438ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner const CFGBlock *getBlock() const { 43924f1a967741ff9f8025ee23be12ba6feacc31f77Ted Kremenek return *I; 44024f1a967741ff9f8025ee23be12ba6feacc31f77Ted Kremenek } 441754607e7cff2d902d9af8b771409449fb2f8d2bfTed Kremenek }; 4421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 443031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu iterator begin() { return iterator(DispatchBlock.succ_begin()); } 444031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu iterator end() { return iterator(DispatchBlock.succ_end()); } 4451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 44618c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *generateNode(const iterator &I, 44718c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *State, 448031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu bool isSink = false); 4491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4509c378f705405d37f49795d5e915989de774fe11fTed Kremenek const Expr *getTarget() const { return E; } 451754607e7cff2d902d9af8b771409449fb2f8d2bfTed Kremenek 45218c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *getState() const { return Pred->State; } 453754607e7cff2d902d9af8b771409449fb2f8d2bfTed Kremenek}; 4541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 455d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidisclass SwitchNodeBuilder { 456d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis CoreEngine& Eng; 4579c378f705405d37f49795d5e915989de774fe11fTed Kremenek const CFGBlock *Src; 4589c378f705405d37f49795d5e915989de774fe11fTed Kremenek const Expr *Condition; 4599c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *Pred; 460031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu 461daeb9a7376830d637e02b5bc51faf4750a7bce70Ted Kremenekpublic: 4629c378f705405d37f49795d5e915989de774fe11fTed Kremenek SwitchNodeBuilder(ExplodedNode *pred, const CFGBlock *src, 4639c378f705405d37f49795d5e915989de774fe11fTed Kremenek const Expr *condition, CoreEngine* eng) 464daeb9a7376830d637e02b5bc51faf4750a7bce70Ted Kremenek : Eng(*eng), Src(src), Condition(condition), Pred(pred) {} 4651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 466031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu class iterator { 46703509aea098772644bf4662dc1c88634818ceeccZhongxing Xu CFGBlock::const_succ_reverse_iterator I; 4681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 469d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class SwitchNodeBuilder; 47003509aea098772644bf4662dc1c88634818ceeccZhongxing Xu iterator(CFGBlock::const_succ_reverse_iterator i) : I(i) {} 471031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu 472daeb9a7376830d637e02b5bc51faf4750a7bce70Ted Kremenek public: 4739c378f705405d37f49795d5e915989de774fe11fTed Kremenek iterator &operator++() { ++I; return *this; } 47434feff654c6304e0a59ceb1376989d28dbc956ffTed Kremenek bool operator!=(const iterator &X) const { return I != X.I; } 47534feff654c6304e0a59ceb1376989d28dbc956ffTed Kremenek bool operator==(const iterator &X) const { return I == X.I; } 4761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4779c378f705405d37f49795d5e915989de774fe11fTed Kremenek const CaseStmt *getCase() const { 478daeb9a7376830d637e02b5bc51faf4750a7bce70Ted Kremenek return llvm::cast<CaseStmt>((*I)->getLabel()); 479daeb9a7376830d637e02b5bc51faf4750a7bce70Ted Kremenek } 4801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4819c378f705405d37f49795d5e915989de774fe11fTed Kremenek const CFGBlock *getBlock() const { 482daeb9a7376830d637e02b5bc51faf4750a7bce70Ted Kremenek return *I; 483daeb9a7376830d637e02b5bc51faf4750a7bce70Ted Kremenek } 484daeb9a7376830d637e02b5bc51faf4750a7bce70Ted Kremenek }; 4851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 486031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu iterator begin() { return iterator(Src->succ_rbegin()+1); } 487031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu iterator end() { return iterator(Src->succ_rend()); } 4881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4894d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek const SwitchStmt *getSwitch() const { 4904d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek return llvm::cast<SwitchStmt>(Src->getTerminator()); 4914d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek } 4924d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek 49318c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *generateCaseStmtNode(const iterator &I, 49418c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *State); 4951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 49618c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *generateDefaultCaseNode(const ProgramState *State, 497031ccc0555a82afc2e8afe29e19dd57ff204e2deZhongxing Xu bool isSink = false); 4981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4999c378f705405d37f49795d5e915989de774fe11fTed Kremenek const Expr *getCondition() const { return Condition; } 500daeb9a7376830d637e02b5bc51faf4750a7bce70Ted Kremenek 50118c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *getState() const { return Pred->State; } 502daeb9a7376830d637e02b5bc51faf4750a7bce70Ted Kremenek}; 50311062b118476368fa5b294954713e5df97d8599fTed Kremenek 50427c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenekclass GenericNodeBuilderImpl { 50527c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenekprotected: 50627c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek CoreEngine &engine; 50727c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek ExplodedNode *pred; 50827c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek ProgramPoint pp; 509686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<ExplodedNode*, 2> sinksGenerated; 51027c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek 51118c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *generateNodeImpl(const ProgramState *state, 51218c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *pred, 51318c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ProgramPoint programPoint, 51418c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek bool asSink); 51527c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek 51627c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek GenericNodeBuilderImpl(CoreEngine &eng, ExplodedNode *pr, ProgramPoint p) 517b4857264b8d3d861f688cdaa174aab30e0729a73Ted Kremenek : engine(eng), pred(pr), pp(p), hasGeneratedNode(false) {} 51827c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek 51927c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenekpublic: 520b4857264b8d3d861f688cdaa174aab30e0729a73Ted Kremenek bool hasGeneratedNode; 52127c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek 52227c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek WorkList &getWorkList() { return *engine.WList; } 52327c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek 5249c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *getPredecessor() const { return pred; } 52527c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek 52627c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek BlockCounter getBlockCounter() const { 52727c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek return engine.WList->getBlockCounter(); 52827c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek } 52927c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek 530686775deca8b8685eb90801495880e3abdd844c2Chris Lattner const SmallVectorImpl<ExplodedNode*> &sinks() const { 53127c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek return sinksGenerated; 53227c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek } 53327c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek}; 53427c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek 535b6a2b08a6b3fbce1a6a4b69d4185165de970696cTed Kremenektemplate <typename PP_T> 53627c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenekclass GenericNodeBuilder : public GenericNodeBuilderImpl { 53727c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenekpublic: 538b6a2b08a6b3fbce1a6a4b69d4185165de970696cTed Kremenek GenericNodeBuilder(CoreEngine &eng, ExplodedNode *pr, const PP_T &p) 53927c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek : GenericNodeBuilderImpl(eng, pr, p) {} 54027c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek 54118c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *generateNode(const ProgramState *state, ExplodedNode *pred, 542ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek const ProgramPointTag *tag, bool asSink) { 543b6a2b08a6b3fbce1a6a4b69d4185165de970696cTed Kremenek return generateNodeImpl(state, pred, cast<PP_T>(pp).withTag(tag), 544b6a2b08a6b3fbce1a6a4b69d4185165de970696cTed Kremenek asSink); 54527c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek } 54627c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek 547b6a2b08a6b3fbce1a6a4b69d4185165de970696cTed Kremenek const PP_T &getProgramPoint() const { return cast<PP_T>(pp); } 54827c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek}; 54927c54e57c4a012dcdf2b40cf985b70d0b9caa69eTed Kremenek 550f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaksclass EndOfFunctionNodeBuilder : public CommonNodeBuilder { 5519c378f705405d37f49795d5e915989de774fe11fTed Kremenek const CFGBlock &B; 552ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek const ProgramPointTag *Tag; 553f605aae3227ffa3a5dae8eb34fdd79ba0a0d19d1Zhongxing Xu 554f605aae3227ffa3a5dae8eb34fdd79ba0a0d19d1Zhongxing Xupublic: 555b4857264b8d3d861f688cdaa174aab30e0729a73Ted Kremenek bool hasGeneratedNode; 5561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 55711062b118476368fa5b294954713e5df97d8599fTed Kremenekpublic: 5589c378f705405d37f49795d5e915989de774fe11fTed Kremenek EndOfFunctionNodeBuilder(const CFGBlock *b, ExplodedNode *N, CoreEngine* e, 559ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek const ProgramPointTag *tag = 0) 560f05aac8472d8ed081a361a218fd14d59ddc91b85Anna Zaks : CommonNodeBuilder(e, N), B(*b), Tag(tag), hasGeneratedNode(false) {} 5611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 562e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek ~EndOfFunctionNodeBuilder(); 5631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 564ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek EndOfFunctionNodeBuilder withCheckerTag(const ProgramPointTag *tag) { 565f178ac8b68b29e44867777232ba8fee59edc4037Argyrios Kyrtzidis return EndOfFunctionNodeBuilder(&B, Pred, &Eng, tag); 566f178ac8b68b29e44867777232ba8fee59edc4037Argyrios Kyrtzidis } 567f178ac8b68b29e44867777232ba8fee59edc4037Argyrios Kyrtzidis 568d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis WorkList &getWorkList() { return *Eng.WList; } 569598278bee8e5797bc73d24d6ac8a1d6ff6413caeZhongxing Xu 5709c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *getPredecessor() const { return Pred; } 5711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 57211062b118476368fa5b294954713e5df97d8599fTed Kremenek unsigned getCurrentBlockCount() const { 573d9e0c0fc47d5881a609ec34372d554e3652db66cZhongxing Xu return getBlockCounter().getNumVisited( 574d9e0c0fc47d5881a609ec34372d554e3652db66cZhongxing Xu Pred->getLocationContext()->getCurrentStackFrame(), 575d9e0c0fc47d5881a609ec34372d554e3652db66cZhongxing Xu B.getBlockID()); 5761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 5771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 57818c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *generateNode(const ProgramState *State, 57918c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek ExplodedNode *P = 0, 580ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek const ProgramPointTag *tag = 0); 5811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 58218c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek void GenerateCallExitNode(const ProgramState *state); 583102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 5849c378f705405d37f49795d5e915989de774fe11fTed Kremenek const CFGBlock *getBlock() const { return &B; } 58511062b118476368fa5b294954713e5df97d8599fTed Kremenek 58618c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *getState() const { 58711062b118476368fa5b294954713e5df97d8599fTed Kremenek return getPredecessor()->getState(); 58811062b118476368fa5b294954713e5df97d8599fTed Kremenek } 58911062b118476368fa5b294954713e5df97d8599fTed Kremenek}; 590754607e7cff2d902d9af8b771409449fb2f8d2bfTed Kremenek 591d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidisclass CallEnterNodeBuilder { 592d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis CoreEngine &Eng; 593102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 594102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor const ExplodedNode *Pred; 595102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 59619b78d9e3dbbc27bbcbdd8c3017a00fe88849ecdZhongxing Xu // The call site. For implicit automatic object dtor, this is the trigger 59719b78d9e3dbbc27bbcbdd8c3017a00fe88849ecdZhongxing Xu // statement. 598102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor const Stmt *CE; 599102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 60019b78d9e3dbbc27bbcbdd8c3017a00fe88849ecdZhongxing Xu // The context of the callee. 60119b78d9e3dbbc27bbcbdd8c3017a00fe88849ecdZhongxing Xu const StackFrameContext *CalleeCtx; 602102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 603102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor // The parent block of the CallExpr. 604102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor const CFGBlock *Block; 605102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 606102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor // The CFGBlock index of the CallExpr. 607102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor unsigned Index; 608102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 609102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregorpublic: 610d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis CallEnterNodeBuilder(CoreEngine &eng, const ExplodedNode *pred, 61119b78d9e3dbbc27bbcbdd8c3017a00fe88849ecdZhongxing Xu const Stmt *s, const StackFrameContext *callee, 612102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor const CFGBlock *blk, unsigned idx) 613c6238d2786cfd961b94580b3d3675a1b3ff0721cZhongxing Xu : Eng(eng), Pred(pred), CE(s), CalleeCtx(callee), Block(blk), Index(idx) {} 614102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 61518c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *getState() const { return Pred->getState(); } 616102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 617102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor const LocationContext *getLocationContext() const { 618102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor return Pred->getLocationContext(); 619102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor } 620102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 621102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor const Stmt *getCallExpr() const { return CE; } 622102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 62319b78d9e3dbbc27bbcbdd8c3017a00fe88849ecdZhongxing Xu const StackFrameContext *getCalleeContext() const { return CalleeCtx; } 624102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 625102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor const CFGBlock *getBlock() const { return Block; } 626102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 627102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor unsigned getIndex() const { return Index; } 628102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 62918c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek void generateNode(const ProgramState *state); 630102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor}; 631102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 632d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidisclass CallExitNodeBuilder { 633d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis CoreEngine &Eng; 634102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor const ExplodedNode *Pred; 635102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 636102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregorpublic: 637d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis CallExitNodeBuilder(CoreEngine &eng, const ExplodedNode *pred) 638102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor : Eng(eng), Pred(pred) {} 639102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 640102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor const ExplodedNode *getPredecessor() const { return Pred; } 641102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 64218c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek const ProgramState *getState() const { return Pred->getState(); } 643102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor 64418c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek void generateNode(const ProgramState *state); 645102acd5369bbb17c0d6ab868af376671acff7a93Douglas Gregor}; 6465a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 6475a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis} // end GR namespace 6485a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 649f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek} // end clang namespace 650f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek 651f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek#endif 652