ExplodedGraph.h revision 9b663716449b618ba0390b1dbebc54fa8e971124
151125a21eafc29c925cac3655b46cfd8ef55f764Ted Kremenek//=-- ExplodedGraph.h - Local, Path-Sens. "Exploded Graph" -*- C++ -*-------==// 24241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek// 34241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek// The LLVM Compiler Infrastructure 44241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek// 54241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek// This file is distributed under the University of Illinois Open Source 64241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek// License. See LICENSE.TXT for details. 74241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek// 84241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek//===----------------------------------------------------------------------===// 94241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek// 1051125a21eafc29c925cac3655b46cfd8ef55f764Ted Kremenek// This file defines the template classes ExplodedNode and ExplodedGraph, 1151125a21eafc29c925cac3655b46cfd8ef55f764Ted Kremenek// which represent a path-sensitive, intra-procedural "exploded graph." 12b2213dc3dd8f58b611b91d2fce4834a767efcba7Jeffrey Yasskin// See "Precise interprocedural dataflow analysis via graph reachability" 13b2213dc3dd8f58b611b91d2fce4834a767efcba7Jeffrey Yasskin// by Reps, Horwitz, and Sagiv 14b2213dc3dd8f58b611b91d2fce4834a767efcba7Jeffrey Yasskin// (http://portal.acm.org/citation.cfm?id=199462) for the definition of an 15b2213dc3dd8f58b611b91d2fce4834a767efcba7Jeffrey Yasskin// exploded graph. 164241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek// 174241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek//===----------------------------------------------------------------------===// 184241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 195a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis#ifndef LLVM_CLANG_GR_EXPLODEDGRAPH 205a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis#define LLVM_CLANG_GR_EXPLODEDGRAPH 214241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 224a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek#include "clang/Analysis/ProgramPoint.h" 231309f9a3b225ea846e5822691c39a77423125505Ted Kremenek#include "clang/Analysis/AnalysisContext.h" 2463bbe5312cd89ce0ceb684bff68c5baef636e93cTed Kremenek#include "clang/AST/Decl.h" 254241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek#include "llvm/ADT/SmallVector.h" 264241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek#include "llvm/ADT/FoldingSet.h" 27f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek#include "llvm/ADT/SmallPtrSet.h" 284241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek#include "llvm/Support/Allocator.h" 29ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek#include "llvm/ADT/OwningPtr.h" 304a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek#include "llvm/ADT/GraphTraits.h" 314a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek#include "llvm/ADT/DepthFirstIterator.h" 3263bbe5312cd89ce0ceb684bff68c5baef636e93cTed Kremenek#include "llvm/Support/Casting.h" 335fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek#include "clang/Analysis/Support/BumpVector.h" 349b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/GRState.h" 354241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 364241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremeneknamespace clang { 374a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 3811062b118476368fa5b294954713e5df97d8599fTed Kremenekclass CFG; 395a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 409ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremeneknamespace ento { 415a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 425fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenekclass ExplodedGraph; 4311062b118476368fa5b294954713e5df97d8599fTed Kremenek 44cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek//===----------------------------------------------------------------------===// 45cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek// ExplodedGraph "implementation" classes. These classes are not typed to 46cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek// contain a specific kind of state. Typed-specialized versions are defined 47cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek// on top of these classes. 48cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek//===----------------------------------------------------------------------===// 491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 50bda1efd0daf6fca9f515c6ce38d1ed71a3cca5b7Zhongxing Xu// ExplodedNode is not constified all over the engine because we need to add 51bda1efd0daf6fca9f515c6ce38d1ed71a3cca5b7Zhongxing Xu// successors to it at any time after creating it. 52bda1efd0daf6fca9f515c6ce38d1ed71a3cca5b7Zhongxing Xu 53c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xuclass ExplodedNode : public llvm::FoldingSetNode { 5438b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu friend class ExplodedGraph; 55d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class CoreEngine; 56d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class StmtNodeBuilder; 57d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class BranchNodeBuilder; 58d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class IndirectGotoNodeBuilder; 59d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class SwitchNodeBuilder; 60e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek friend class EndOfFunctionNodeBuilder; 611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 624c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek class NodeGroup { 63b38911f16b4943548db6a3695fc6ae23070b25d2Ted Kremenek enum { Size1 = 0x0, SizeOther = 0x1, AuxFlag = 0x2, Mask = 0x3 }; 644c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek uintptr_t P; 651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 66ee98546b0d5f3439c4a590b0d7d1545af794a0ecTed Kremenek unsigned getKind() const { 67596f0a1e54f610926e8bfded9efa1c639f824dedTed Kremenek return P & 0x1; 68ee98546b0d5f3439c4a590b0d7d1545af794a0ecTed Kremenek } 691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 70ee98546b0d5f3439c4a590b0d7d1545af794a0ecTed Kremenek void* getPtr() const { 71ffe0f43806d4823271c2406c1fccc2373115c36aTed Kremenek assert (!getFlag()); 72b38911f16b4943548db6a3695fc6ae23070b25d2Ted Kremenek return reinterpret_cast<void*>(P & ~Mask); 73ee98546b0d5f3439c4a590b0d7d1545af794a0ecTed Kremenek } 74ee98546b0d5f3439c4a590b0d7d1545af794a0ecTed Kremenek 75c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu ExplodedNode *getNode() const { 76c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu return reinterpret_cast<ExplodedNode*>(getPtr()); 77ee98546b0d5f3439c4a590b0d7d1545af794a0ecTed Kremenek } 78d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 794c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek public: 804c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek NodeGroup() : P(0) {} 811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 825fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek ExplodedNode **begin() const; 831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 845fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek ExplodedNode **end() const; 851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 865d5480380d7b7c3590a0283ddf239220e514e576Ted Kremenek unsigned size() const; 871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 885fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek bool empty() const { return (P & ~Mask) == 0; } 891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 905fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek void addNode(ExplodedNode* N, ExplodedGraph &G); 911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 92d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void replaceNode(ExplodedNode *node); 93d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 94b38911f16b4943548db6a3695fc6ae23070b25d2Ted Kremenek void setFlag() { 955fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek assert(P == 0); 96ffe0f43806d4823271c2406c1fccc2373115c36aTed Kremenek P = AuxFlag; 97f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek } 981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 99b38911f16b4943548db6a3695fc6ae23070b25d2Ted Kremenek bool getFlag() const { 100b38911f16b4943548db6a3695fc6ae23070b25d2Ted Kremenek return P & AuxFlag ? true : false; 101f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek } 1021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump }; 1031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1044a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek /// Location - The program location (within a function body) associated 1054a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek /// with this node. 1064a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const ProgramPoint Location; 1071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1084323a57627e796dcfdfdb7d47672dc09ed308edaTed Kremenek /// State - The state associated with this node. 109c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu const GRState* State; 1101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1114a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek /// Preds - The predecessors of this node. 1124c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek NodeGroup Preds; 1131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1144a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek /// Succs - The successors of this node. 1154c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek NodeGroup Succs; 116c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1174a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenekpublic: 118c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ExplodedNode(const ProgramPoint& loc, const GRState* state) 120e3115e257163321ecde429aeae75f1702f099d4cTed Kremenek : Location(loc), State(state) { 121e3115e257163321ecde429aeae75f1702f099d4cTed Kremenek const_cast<GRState*>(State)->setReferencedByExplodedNode(); 122e3115e257163321ecde429aeae75f1702f099d4cTed Kremenek } 123c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1244a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek /// getLocation - Returns the edge associated with the given node. 1250f9063c116b7c3b05d8042b5976463c2dae04861Ted Kremenek ProgramPoint getLocation() const { return Location; } 126c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const LocationContext *getLocationContext() const { 1281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return getLocation().getLocationContext(); 12925e695b2d574d919cc1bbddf3a2efe073d449b1cZhongxing Xu } 13025e695b2d574d919cc1bbddf3a2efe073d449b1cZhongxing Xu 1315032ffe4259e7d436f2eb19e5a29fdae559e7c12Zhongxing Xu const Decl &getCodeDecl() const { return *getLocationContext()->getDecl(); } 1325032ffe4259e7d436f2eb19e5a29fdae559e7c12Zhongxing Xu 1335032ffe4259e7d436f2eb19e5a29fdae559e7c12Zhongxing Xu CFG &getCFG() const { return *getLocationContext()->getCFG(); } 1345032ffe4259e7d436f2eb19e5a29fdae559e7c12Zhongxing Xu 135b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu ParentMap &getParentMap() const {return getLocationContext()->getParentMap();} 136b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu 137b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu LiveVariables &getLiveVariables() const { 138b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu return *getLocationContext()->getLiveVariables(); 139c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu } 140c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 141b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu const GRState* getState() const { return State; } 142b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu 14352c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek template <typename T> 14452c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek const T* getLocationAs() const { return llvm::dyn_cast<T>(&Location); } 145c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static void Profile(llvm::FoldingSetNodeID &ID, 1475fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek const ProgramPoint& Loc, const GRState* state) { 1485fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek ID.Add(Loc); 1495fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek ID.AddPointer(state); 1505fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek } 151c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 152c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu void Profile(llvm::FoldingSetNodeID& ID) const { 153c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu Profile(ID, getLocation(), getState()); 154c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu } 155c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// addPredeccessor - Adds a predecessor to the current node, and 157c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu /// in tandem add this node as a successor of the other node. 1585fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek void addPredecessor(ExplodedNode* V, ExplodedGraph &G); 159c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1604a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek unsigned succ_size() const { return Succs.size(); } 1614a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek unsigned pred_size() const { return Preds.size(); } 1624a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek bool succ_empty() const { return Succs.empty(); } 1630e8a3c743b9b3e3039e329a1736122d3b5b5fed9Ted Kremenek bool pred_empty() const { return Preds.empty(); } 1641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 165ffe0f43806d4823271c2406c1fccc2373115c36aTed Kremenek bool isSink() const { return Succs.getFlag(); } 1661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void markAsSink() { Succs.setFlag(); } 1674a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 16852c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek ExplodedNode* getFirstPred() { 16952c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek return pred_empty() ? NULL : *(pred_begin()); 17052c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek } 1711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17252c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek const ExplodedNode* getFirstPred() const { 17352c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek return const_cast<ExplodedNode*>(this)->getFirstPred(); 17452c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek } 1751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1764a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek // Iterators over successor and predecessor vertices. 1774a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek typedef ExplodedNode** succ_iterator; 1783148eb4a75f70f2636075c364d03104223f004d3Ted Kremenek typedef const ExplodedNode* const * const_succ_iterator; 1794a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek typedef ExplodedNode** pred_iterator; 1803148eb4a75f70f2636075c364d03104223f004d3Ted Kremenek typedef const ExplodedNode* const * const_pred_iterator; 1814a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 182c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu pred_iterator pred_begin() { return Preds.begin(); } 183c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu pred_iterator pred_end() { return Preds.end(); } 1844a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 1854a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_pred_iterator pred_begin() const { 1864a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->pred_begin(); 1871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1884a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_pred_iterator pred_end() const { 1894a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->pred_end(); 1904a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 1914a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 192c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu succ_iterator succ_begin() { return Succs.begin(); } 193c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu succ_iterator succ_end() { return Succs.end(); } 1944a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 1954a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_succ_iterator succ_begin() const { 1964a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->succ_begin(); 1974a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 1984a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_succ_iterator succ_end() const { 1994a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->succ_end(); 2004a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 201c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 202c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu // For debugging. 2031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 204c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xupublic: 2051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 206c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu class Auditor { 207c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu public: 208c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu virtual ~Auditor(); 209c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu virtual void AddEdge(ExplodedNode* Src, ExplodedNode* Dst) = 0; 210c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu }; 2111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 212c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu static void SetAuditor(Auditor* A); 213d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 214d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenekprivate: 215d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void replaceSuccessor(ExplodedNode *node) { Succs.replaceNode(node); } 216d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void replacePredecessor(ExplodedNode *node) { Preds.replaceNode(node); } 217c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu}; 218c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 21938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu// FIXME: Is this class necessary? 22038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xuclass InterExplodedGraphMap { 22138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::DenseMap<const ExplodedNode*, ExplodedNode*> M; 2221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump friend class ExplodedGraph; 223c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 22438b02b912e1a55c912f603c4369431264d36a381Zhongxing Xupublic: 22538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu ExplodedNode* getMappedNode(const ExplodedNode* N) const; 2261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2277177dee8aee4b432911c91f1b788963bec0cac9fDaniel Dunbar InterExplodedGraphMap() {} 22838b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu virtual ~InterExplodedGraphMap() {} 2294a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek}; 2304a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 23138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xuclass ExplodedGraph { 2324241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenekprotected: 233d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class CoreEngine; 234e96de2dfde487211fb52f9139cdcae64d051a406Zhongxing Xu 2354241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek // Type definitions. 236c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef llvm::SmallVector<ExplodedNode*,2> RootsTy; 237c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef llvm::SmallVector<ExplodedNode*,10> EndNodesTy; 2381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2394241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// Roots - The roots of the simulation graph. Usually there will be only 2404241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// one, but clients are free to establish multiple subgraphs within a single 2414241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// SimulGraph. Moreover, these subgraphs can often merge when paths from 2424241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// different roots reach the same state at the same program location. 2434241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek RootsTy Roots; 2444241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 2454241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// EndNodes - The nodes in the simulation graph which have been 2464241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// specially marked as the endpoint of an abstract simulation path. 2474241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek EndNodesTy EndNodes; 24838b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 24938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu /// Nodes - The nodes in the graph. 25038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::FoldingSet<ExplodedNode> Nodes; 25138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 2525fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek /// BVC - Allocator and context for allocating nodes and their predecessor 2535fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek /// and successor groups. 2545fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek BumpVectorContext BVC; 2551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25639b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek /// NumNodes - The number of nodes in the graph. 25739b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek unsigned NumNodes; 258d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 259d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// A list of recently allocated nodes that can potentially be recycled. 260d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void *recentlyAllocatedNodes; 261d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 262d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// A list of nodes that can be reused. 263d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void *freeNodes; 264d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 265d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// A flag that indicates whether nodes should be recycled. 266d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek bool reclaimNodes; 2674241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 26838b02b912e1a55c912f603c4369431264d36a381Zhongxing Xupublic: 26938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu /// getNode - Retrieve the node associated with a (Location,State) pair, 27038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu /// where the 'Location' is a ProgramPoint in the CFG. If no node for 27138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu /// this pair exists, it is created. IsNew is set to true if 27238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu /// the node was freshly created. 27338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 27438b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu ExplodedNode* getNode(const ProgramPoint& L, const GRState *State, 27538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu bool* IsNew = 0); 2761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu ExplodedGraph* MakeEmptyGraph() const { 278c77a55126fcad66fb086f8e100a494caa2496a2dZhongxing Xu return new ExplodedGraph(); 27938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu } 2804a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 2814241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// addRoot - Add an untyped node to the set of roots. 282c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu ExplodedNode* addRoot(ExplodedNode* V) { 283ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek Roots.push_back(V); 284ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek return V; 285ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek } 2864241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 2874241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// addEndOfPath - Add an untyped node to the set of EOP nodes. 288c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu ExplodedNode* addEndOfPath(ExplodedNode* V) { 289ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek EndNodes.push_back(V); 290ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek return V; 291ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek } 29238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 293824c547dc5d4451b9dbacc56621592fa010878f4Ted Kremenek ExplodedGraph() 294824c547dc5d4451b9dbacc56621592fa010878f4Ted Kremenek : NumNodes(0), recentlyAllocatedNodes(0), 295824c547dc5d4451b9dbacc56621592fa010878f4Ted Kremenek freeNodes(0), reclaimNodes(false) {} 2964a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 297d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek ~ExplodedGraph(); 298d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 2994241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek unsigned num_roots() const { return Roots.size(); } 3004a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek unsigned num_eops() const { return EndNodes.size(); } 3011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30239b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek bool empty() const { return NumNodes == 0; } 30339b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek unsigned size() const { return NumNodes; } 304c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 3054241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek // Iterators. 30638b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef ExplodedNode NodeTy; 30738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef llvm::FoldingSet<ExplodedNode> AllNodesTy; 3087ebde953bb050caa69f791fc1de449d435c6a36fTed Kremenek typedef NodeTy** roots_iterator; 30938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef NodeTy* const * const_roots_iterator; 3107ebde953bb050caa69f791fc1de449d435c6a36fTed Kremenek typedef NodeTy** eop_iterator; 31138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef NodeTy* const * const_eop_iterator; 31238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef AllNodesTy::iterator node_iterator; 31338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef AllNodesTy::const_iterator const_node_iterator; 3141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu node_iterator nodes_begin() { return Nodes.begin(); } 3167ebde953bb050caa69f791fc1de449d435c6a36fTed Kremenek 31738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu node_iterator nodes_end() { return Nodes.end(); } 3181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_node_iterator nodes_begin() const { return Nodes.begin(); } 3201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_node_iterator nodes_end() const { return Nodes.end(); } 3221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu roots_iterator roots_begin() { return Roots.begin(); } 3241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu roots_iterator roots_end() { return Roots.end(); } 3261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_roots_iterator roots_begin() const { return Roots.begin(); } 3281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const_roots_iterator roots_end() const { return Roots.end(); } 3304241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 33138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu eop_iterator eop_begin() { return EndNodes.begin(); } 3321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu eop_iterator eop_end() { return EndNodes.end(); } 3341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_eop_iterator eop_begin() const { return EndNodes.begin(); } 3361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_eop_iterator eop_end() const { return EndNodes.end(); } 33838b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 3395fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek llvm::BumpPtrAllocator & getAllocator() { return BVC.getAllocator(); } 3405fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek BumpVectorContext &getNodeAllocator() { return BVC; } 34138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 34238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef llvm::DenseMap<const ExplodedNode*, ExplodedNode*> NodeMap; 34338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 344c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu std::pair<ExplodedGraph*, InterExplodedGraphMap*> 345fe9e543a2a363df7fcaa899367d3b2580b63b27cTed Kremenek Trim(const NodeTy* const* NBeg, const NodeTy* const* NEnd, 34638b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::DenseMap<const void*, const void*> *InverseMap = 0) const; 347cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek 34838b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu ExplodedGraph* TrimInternal(const ExplodedNode* const * NBeg, 34938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const ExplodedNode* const * NEnd, 35038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu InterExplodedGraphMap *M, 35138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::DenseMap<const void*, const void*> *InverseMap) const; 352d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 353d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// Enable tracking of recently allocated nodes for potential reclamation 354d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// when calling reclaimRecentlyAllocatedNodes(). 355d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void enableNodeReclamation() { reclaimNodes = true; } 356d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 357d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// Reclaim "uninteresting" nodes created since the last time this method 358d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// was called. 359d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void reclaimRecentlyAllocatedNodes(); 3604241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek}; 361cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek 362f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenekclass ExplodedNodeSet { 363c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef llvm::SmallPtrSet<ExplodedNode*,5> ImplTy; 364f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek ImplTy Impl; 3651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 366f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenekpublic: 367c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu ExplodedNodeSet(ExplodedNode* N) { 368c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu assert (N && !static_cast<ExplodedNode*>(N)->isSink()); 369f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek Impl.insert(N); 370f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek } 3711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 372f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek ExplodedNodeSet() {} 3731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 374c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu inline void Add(ExplodedNode* N) { 375c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu if (N && !static_cast<ExplodedNode*>(N)->isSink()) Impl.insert(N); 376f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek } 3771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 378cc2c6eb04d882466c7cfbb544c251d7e0ba0f356Ted Kremenek ExplodedNodeSet& operator=(const ExplodedNodeSet &X) { 379cc2c6eb04d882466c7cfbb544c251d7e0ba0f356Ted Kremenek Impl = X.Impl; 380cc2c6eb04d882466c7cfbb544c251d7e0ba0f356Ted Kremenek return *this; 381cc2c6eb04d882466c7cfbb544c251d7e0ba0f356Ted Kremenek } 3821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 383c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef ImplTy::iterator iterator; 384c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef ImplTy::const_iterator const_iterator; 385f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek 386fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek unsigned size() const { return Impl.size(); } 387fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek bool empty() const { return Impl.empty(); } 388fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek 389fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek void clear() { Impl.clear(); } 390fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek void insert(const ExplodedNodeSet &S) { 391fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek if (empty()) 392fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek Impl = S.Impl; 393fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek else 394fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek Impl.insert(S.begin(), S.end()); 395fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek } 3961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 397f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline iterator begin() { return Impl.begin(); } 398f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline iterator end() { return Impl.end(); } 3991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 400f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline const_iterator begin() const { return Impl.begin(); } 401f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline const_iterator end() const { return Impl.end(); } 4021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump}; 4031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4045a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis} // end GR namespace 4055a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 4064241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek} // end clang namespace 4074241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 4084a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek// GraphTraits 4094a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 4104a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremeneknamespace llvm { 4119ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek template<> struct GraphTraits<clang::ento::ExplodedNode*> { 4129ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek typedef clang::ento::ExplodedNode NodeType; 413c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef NodeType::succ_iterator ChildIteratorType; 4144a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek typedef llvm::df_iterator<NodeType*> nodes_iterator; 4151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4164a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline NodeType* getEntryNode(NodeType* N) { 4174a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N; 4184a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4204a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_begin(NodeType* N) { 4214a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_begin(); 4224a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4244a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_end(NodeType* N) { 4254a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_end(); 4264a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4284a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_begin(NodeType* N) { 4294a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_begin(N); 4304a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4324a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_end(NodeType* N) { 4334a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_end(N); 4344a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4354a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek }; 4361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4379ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek template<> struct GraphTraits<const clang::ento::ExplodedNode*> { 4389ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek typedef const clang::ento::ExplodedNode NodeType; 439c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef NodeType::const_succ_iterator ChildIteratorType; 4404a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek typedef llvm::df_iterator<NodeType*> nodes_iterator; 4411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4424a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline NodeType* getEntryNode(NodeType* N) { 4434a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N; 4444a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4464a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_begin(NodeType* N) { 4474a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_begin(); 4484a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4504a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_end(NodeType* N) { 4514a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_end(); 4524a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4544a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_begin(NodeType* N) { 4554a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_begin(N); 4564a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4584a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_end(NodeType* N) { 4594a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_end(N); 4604a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4614a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek }; 4621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4634a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek} // end llvm namespace 4644a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 4654241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek#endif 466