ExplodedGraph.h revision 2ac58b7c09938bb28c51c7cd2deada609b75f94c
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" 3418c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/ProgramState.h" 35626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek#include <vector> 364241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 374241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremeneknamespace clang { 384a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 3911062b118476368fa5b294954713e5df97d8599fTed Kremenekclass CFG; 405a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 419ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremeneknamespace ento { 425a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 435fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenekclass ExplodedGraph; 4411062b118476368fa5b294954713e5df97d8599fTed Kremenek 45cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek//===----------------------------------------------------------------------===// 46cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek// ExplodedGraph "implementation" classes. These classes are not typed to 47cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek// contain a specific kind of state. Typed-specialized versions are defined 48cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek// on top of these classes. 49cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek//===----------------------------------------------------------------------===// 501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 51bda1efd0daf6fca9f515c6ce38d1ed71a3cca5b7Zhongxing Xu// ExplodedNode is not constified all over the engine because we need to add 52bda1efd0daf6fca9f515c6ce38d1ed71a3cca5b7Zhongxing Xu// successors to it at any time after creating it. 53bda1efd0daf6fca9f515c6ce38d1ed71a3cca5b7Zhongxing Xu 54c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xuclass ExplodedNode : public llvm::FoldingSetNode { 5538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu friend class ExplodedGraph; 56d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class CoreEngine; 57a19f4af7a94835ce4693bfe12d6270754e79eb56Anna Zaks friend class NodeBuilder; 58d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class BranchNodeBuilder; 59d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class IndirectGotoNodeBuilder; 60d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class SwitchNodeBuilder; 61e36de1fe51c39d9161915dd3dbef880954af6476Ted Kremenek friend class EndOfFunctionNodeBuilder; 621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 634c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek class NodeGroup { 64b38911f16b4943548db6a3695fc6ae23070b25d2Ted Kremenek enum { Size1 = 0x0, SizeOther = 0x1, AuxFlag = 0x2, Mask = 0x3 }; 654c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek uintptr_t P; 661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 67ee98546b0d5f3439c4a590b0d7d1545af794a0ecTed Kremenek unsigned getKind() const { 68596f0a1e54f610926e8bfded9efa1c639f824dedTed Kremenek return P & 0x1; 69ee98546b0d5f3439c4a590b0d7d1545af794a0ecTed Kremenek } 701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 719c378f705405d37f49795d5e915989de774fe11fTed Kremenek void *getPtr() const { 72ffe0f43806d4823271c2406c1fccc2373115c36aTed Kremenek assert (!getFlag()); 73b38911f16b4943548db6a3695fc6ae23070b25d2Ted Kremenek return reinterpret_cast<void*>(P & ~Mask); 74ee98546b0d5f3439c4a590b0d7d1545af794a0ecTed Kremenek } 75ee98546b0d5f3439c4a590b0d7d1545af794a0ecTed Kremenek 76c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu ExplodedNode *getNode() const { 77c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu return reinterpret_cast<ExplodedNode*>(getPtr()); 78ee98546b0d5f3439c4a590b0d7d1545af794a0ecTed Kremenek } 79d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 804c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek public: 814c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek NodeGroup() : P(0) {} 821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 835fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek ExplodedNode **begin() const; 841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 855fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek ExplodedNode **end() const; 861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 875d5480380d7b7c3590a0283ddf239220e514e576Ted Kremenek unsigned size() const; 881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 895fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek bool empty() const { return (P & ~Mask) == 0; } 901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 919c378f705405d37f49795d5e915989de774fe11fTed Kremenek void addNode(ExplodedNode *N, ExplodedGraph &G); 921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 93d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void replaceNode(ExplodedNode *node); 94d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 95b38911f16b4943548db6a3695fc6ae23070b25d2Ted Kremenek void setFlag() { 965fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek assert(P == 0); 97ffe0f43806d4823271c2406c1fccc2373115c36aTed Kremenek P = AuxFlag; 98f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek } 991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 100b38911f16b4943548db6a3695fc6ae23070b25d2Ted Kremenek bool getFlag() const { 101b38911f16b4943548db6a3695fc6ae23070b25d2Ted Kremenek return P & AuxFlag ? true : false; 102f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek } 1031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump }; 1041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1054a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek /// Location - The program location (within a function body) associated 1064a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek /// with this node. 1074a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const ProgramPoint Location; 1081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1094323a57627e796dcfdfdb7d47672dc09ed308edaTed Kremenek /// State - The state associated with this node. 1108bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek ProgramStateRef State; 1111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1124a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek /// Preds - The predecessors of this node. 1134c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek NodeGroup Preds; 1141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1154a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek /// Succs - The successors of this node. 1164c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek NodeGroup Succs; 117c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1184a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenekpublic: 119c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1208bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek explicit ExplodedNode(const ProgramPoint &loc, ProgramStateRef state, 1216800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks bool IsSink) 122e3115e257163321ecde429aeae75f1702f099d4cTed Kremenek : Location(loc), State(state) { 1236800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks if (IsSink) 1246800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks Succs.setFlag(); 125e40b69de464bc695afcaf7ef9602ad727d77b981Ted Kremenek } 126e40b69de464bc695afcaf7ef9602ad727d77b981Ted Kremenek 127a5888f61be9f8d76e9b48a453dbced50523bd2e0Argyrios Kyrtzidis ~ExplodedNode() {} 128c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1294a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek /// getLocation - Returns the edge associated with the given node. 1300f9063c116b7c3b05d8042b5976463c2dae04861Ted Kremenek ProgramPoint getLocation() const { return Location; } 131c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const LocationContext *getLocationContext() const { 1331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return getLocation().getLocationContext(); 13425e695b2d574d919cc1bbddf3a2efe073d449b1cZhongxing Xu } 13525e695b2d574d919cc1bbddf3a2efe073d449b1cZhongxing Xu 1365032ffe4259e7d436f2eb19e5a29fdae559e7c12Zhongxing Xu const Decl &getCodeDecl() const { return *getLocationContext()->getDecl(); } 1375032ffe4259e7d436f2eb19e5a29fdae559e7c12Zhongxing Xu 1385032ffe4259e7d436f2eb19e5a29fdae559e7c12Zhongxing Xu CFG &getCFG() const { return *getLocationContext()->getCFG(); } 1395032ffe4259e7d436f2eb19e5a29fdae559e7c12Zhongxing Xu 140b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu ParentMap &getParentMap() const {return getLocationContext()->getParentMap();} 141b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu 142a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek template <typename T> 143a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek T &getAnalysis() const { 144a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek return *getLocationContext()->getAnalysis<T>(); 145c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu } 146c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1478bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek ProgramStateRef getState() const { return State; } 148b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu 14952c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek template <typename T> 15052c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek const T* getLocationAs() const { return llvm::dyn_cast<T>(&Location); } 151c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static void Profile(llvm::FoldingSetNodeID &ID, 1536800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks const ProgramPoint &Loc, 1548bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek ProgramStateRef state, 1556800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks bool IsSink) { 1565fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek ID.Add(Loc); 157a5888f61be9f8d76e9b48a453dbced50523bd2e0Argyrios Kyrtzidis ID.AddPointer(state.getPtr()); 1586800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks ID.AddBoolean(IsSink); 1595fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek } 160c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 161c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu void Profile(llvm::FoldingSetNodeID& ID) const { 1626800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks Profile(ID, getLocation(), getState(), isSink()); 163c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu } 164c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// addPredeccessor - Adds a predecessor to the current node, and 166c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu /// in tandem add this node as a successor of the other node. 1679c378f705405d37f49795d5e915989de774fe11fTed Kremenek void addPredecessor(ExplodedNode *V, ExplodedGraph &G); 168c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1694a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek unsigned succ_size() const { return Succs.size(); } 1704a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek unsigned pred_size() const { return Preds.size(); } 1714a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek bool succ_empty() const { return Succs.empty(); } 1720e8a3c743b9b3e3039e329a1736122d3b5b5fed9Ted Kremenek bool pred_empty() const { return Preds.empty(); } 1731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 174ffe0f43806d4823271c2406c1fccc2373115c36aTed Kremenek bool isSink() const { return Succs.getFlag(); } 1754a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 1769c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *getFirstPred() { 17752c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek return pred_empty() ? NULL : *(pred_begin()); 17852c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek } 1791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1809c378f705405d37f49795d5e915989de774fe11fTed Kremenek const ExplodedNode *getFirstPred() const { 18152c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek return const_cast<ExplodedNode*>(this)->getFirstPred(); 18252c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek } 1831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1844a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek // Iterators over successor and predecessor vertices. 1854a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek typedef ExplodedNode** succ_iterator; 1863148eb4a75f70f2636075c364d03104223f004d3Ted Kremenek typedef const ExplodedNode* const * const_succ_iterator; 1874a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek typedef ExplodedNode** pred_iterator; 1883148eb4a75f70f2636075c364d03104223f004d3Ted Kremenek typedef const ExplodedNode* const * const_pred_iterator; 1894a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 190c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu pred_iterator pred_begin() { return Preds.begin(); } 191c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu pred_iterator pred_end() { return Preds.end(); } 1924a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 1934a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_pred_iterator pred_begin() const { 1944a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->pred_begin(); 1951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1964a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_pred_iterator pred_end() const { 1974a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->pred_end(); 1984a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 1994a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 200c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu succ_iterator succ_begin() { return Succs.begin(); } 201c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu succ_iterator succ_end() { return Succs.end(); } 2024a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 2034a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_succ_iterator succ_begin() const { 2044a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->succ_begin(); 2054a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 2064a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_succ_iterator succ_end() const { 2074a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->succ_end(); 2084a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 209c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 210c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu // For debugging. 2111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 212c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xupublic: 2131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 214c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu class Auditor { 215c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu public: 216c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu virtual ~Auditor(); 2179c378f705405d37f49795d5e915989de774fe11fTed Kremenek virtual void AddEdge(ExplodedNode *Src, ExplodedNode *Dst) = 0; 218c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu }; 2191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 220c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu static void SetAuditor(Auditor* A); 221d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 222d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenekprivate: 223d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void replaceSuccessor(ExplodedNode *node) { Succs.replaceNode(node); } 224d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void replacePredecessor(ExplodedNode *node) { Preds.replaceNode(node); } 225c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu}; 226c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 22738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu// FIXME: Is this class necessary? 22838b02b912e1a55c912f603c4369431264d36a381Zhongxing Xuclass InterExplodedGraphMap { 22999ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikie virtual void anchor(); 23038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::DenseMap<const ExplodedNode*, ExplodedNode*> M; 2311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump friend class ExplodedGraph; 232c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 23338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xupublic: 2349c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *getMappedNode(const ExplodedNode *N) const; 2351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2367177dee8aee4b432911c91f1b788963bec0cac9fDaniel Dunbar InterExplodedGraphMap() {} 23738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu virtual ~InterExplodedGraphMap() {} 2384a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek}; 2394a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 24038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xuclass ExplodedGraph { 2414241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenekprotected: 242d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class CoreEngine; 243e96de2dfde487211fb52f9139cdcae64d051a406Zhongxing Xu 2444241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek // Type definitions. 245626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek typedef std::vector<ExplodedNode *> NodeVector; 2461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 247626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek /// The roots of the simulation graph. Usually there will be only 2484241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// one, but clients are free to establish multiple subgraphs within a single 2494241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// SimulGraph. Moreover, these subgraphs can often merge when paths from 2504241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// different roots reach the same state at the same program location. 251626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek NodeVector Roots; 2524241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 253626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek /// The nodes in the simulation graph which have been 254626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek /// specially marked as the endpoint of an abstract simulation path. 255626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek NodeVector EndNodes; 25638b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 25738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu /// Nodes - The nodes in the graph. 25838b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::FoldingSet<ExplodedNode> Nodes; 25938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 2605fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek /// BVC - Allocator and context for allocating nodes and their predecessor 2615fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek /// and successor groups. 2625fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek BumpVectorContext BVC; 2631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26439b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek /// NumNodes - The number of nodes in the graph. 26539b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek unsigned NumNodes; 266d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 267d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// A list of recently allocated nodes that can potentially be recycled. 2682ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek NodeVector ChangedNodes; 269d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 270d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// A list of nodes that can be reused. 271626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek NodeVector FreeNodes; 272d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 273d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// A flag that indicates whether nodes should be recycled. 274d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek bool reclaimNodes; 2752ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek 2762ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek /// Counter to determine when to reclaim nodes. 2772ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek unsigned reclaimCounter; 2784241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 27938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xupublic: 2806800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks 2816800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks /// \brief Retrieve the node associated with a (Location,State) pair, 28238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu /// where the 'Location' is a ProgramPoint in the CFG. If no node for 2836800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks /// this pair exists, it is created. IsNew is set to true if 28438b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu /// the node was freshly created. 2858bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek ExplodedNode *getNode(const ProgramPoint &L, ProgramStateRef State, 2866800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks bool IsSink = false, 28738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu bool* IsNew = 0); 2881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu ExplodedGraph* MakeEmptyGraph() const { 290c77a55126fcad66fb086f8e100a494caa2496a2dZhongxing Xu return new ExplodedGraph(); 29138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu } 2924a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 2934241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// addRoot - Add an untyped node to the set of roots. 2949c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *addRoot(ExplodedNode *V) { 295ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek Roots.push_back(V); 296ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek return V; 297ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek } 2984241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 2994241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// addEndOfPath - Add an untyped node to the set of EOP nodes. 3009c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *addEndOfPath(ExplodedNode *V) { 301ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek EndNodes.push_back(V); 302ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek return V; 303ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek } 30438b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 3059d0064e802e81d0833e8ccab8978b17c0bac3625Ted Kremenek ExplodedGraph(); 3064a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 307d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek ~ExplodedGraph(); 308d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 3094241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek unsigned num_roots() const { return Roots.size(); } 3104a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek unsigned num_eops() const { return EndNodes.size(); } 3111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31239b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek bool empty() const { return NumNodes == 0; } 31339b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek unsigned size() const { return NumNodes; } 314c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 3154241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek // Iterators. 31638b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef ExplodedNode NodeTy; 31738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef llvm::FoldingSet<ExplodedNode> AllNodesTy; 318626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek typedef NodeVector::iterator roots_iterator; 319626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek typedef NodeVector::const_iterator const_roots_iterator; 320626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek typedef NodeVector::iterator eop_iterator; 321626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek typedef NodeVector::const_iterator const_eop_iterator; 32238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef AllNodesTy::iterator node_iterator; 32338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef AllNodesTy::const_iterator const_node_iterator; 3241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu node_iterator nodes_begin() { return Nodes.begin(); } 3267ebde953bb050caa69f791fc1de449d435c6a36fTed Kremenek 32738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu node_iterator nodes_end() { return Nodes.end(); } 3281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_node_iterator nodes_begin() const { return Nodes.begin(); } 3301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_node_iterator nodes_end() const { return Nodes.end(); } 3321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu roots_iterator roots_begin() { return Roots.begin(); } 3341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu roots_iterator roots_end() { return Roots.end(); } 3361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_roots_iterator roots_begin() const { return Roots.begin(); } 3381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const_roots_iterator roots_end() const { return Roots.end(); } 3404241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 34138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu eop_iterator eop_begin() { return EndNodes.begin(); } 3421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu eop_iterator eop_end() { return EndNodes.end(); } 3441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_eop_iterator eop_begin() const { return EndNodes.begin(); } 3461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_eop_iterator eop_end() const { return EndNodes.end(); } 34838b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 3495fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek llvm::BumpPtrAllocator & getAllocator() { return BVC.getAllocator(); } 3505fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek BumpVectorContext &getNodeAllocator() { return BVC; } 35138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 35238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef llvm::DenseMap<const ExplodedNode*, ExplodedNode*> NodeMap; 35338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 354c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu std::pair<ExplodedGraph*, InterExplodedGraphMap*> 355fe9e543a2a363df7fcaa899367d3b2580b63b27cTed Kremenek Trim(const NodeTy* const* NBeg, const NodeTy* const* NEnd, 35638b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::DenseMap<const void*, const void*> *InverseMap = 0) const; 357cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek 35838b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu ExplodedGraph* TrimInternal(const ExplodedNode* const * NBeg, 35938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const ExplodedNode* const * NEnd, 36038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu InterExplodedGraphMap *M, 36138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::DenseMap<const void*, const void*> *InverseMap) const; 362d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 363d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// Enable tracking of recently allocated nodes for potential reclamation 3642ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek /// when calling reclaimRecentlyAllocatedNodes(). 365d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void enableNodeReclamation() { reclaimNodes = true; } 366d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 367d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// Reclaim "uninteresting" nodes created since the last time this method 368d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// was called. 3692ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek void reclaimRecentlyAllocatedNodes(); 370841c96a885789afea9d32d1d842033768c6d2b19Ted Kremenek 371841c96a885789afea9d32d1d842033768c6d2b19Ted Kremenekprivate: 372841c96a885789afea9d32d1d842033768c6d2b19Ted Kremenek bool shouldCollect(const ExplodedNode *node); 373841c96a885789afea9d32d1d842033768c6d2b19Ted Kremenek void collectNode(ExplodedNode *node); 3744241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek}; 375cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek 376f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenekclass ExplodedNodeSet { 377c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef llvm::SmallPtrSet<ExplodedNode*,5> ImplTy; 378f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek ImplTy Impl; 3791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 380f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenekpublic: 3819c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNodeSet(ExplodedNode *N) { 382c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu assert (N && !static_cast<ExplodedNode*>(N)->isSink()); 383f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek Impl.insert(N); 384f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek } 3851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 386f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek ExplodedNodeSet() {} 3871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3889c378f705405d37f49795d5e915989de774fe11fTed Kremenek inline void Add(ExplodedNode *N) { 389c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu if (N && !static_cast<ExplodedNode*>(N)->isSink()) Impl.insert(N); 390f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek } 3911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 392c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef ImplTy::iterator iterator; 393c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef ImplTy::const_iterator const_iterator; 394f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek 395fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek unsigned size() const { return Impl.size(); } 396fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek bool empty() const { return Impl.empty(); } 3971aae01a8308d2f8e31adab3f4d7ac35543aac680Anna Zaks bool erase(ExplodedNode *N) { return Impl.erase(N); } 398fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek 399fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek void clear() { Impl.clear(); } 400fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek void insert(const ExplodedNodeSet &S) { 4012d950b15b2b2b650b102ecf0c6b50b45e0cb6a8aAnna Zaks assert(&S != this); 402fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek if (empty()) 403fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek Impl = S.Impl; 404fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek else 405fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek Impl.insert(S.begin(), S.end()); 406fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek } 4071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 408f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline iterator begin() { return Impl.begin(); } 409f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline iterator end() { return Impl.end(); } 4101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 411f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline const_iterator begin() const { return Impl.begin(); } 412f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline const_iterator end() const { return Impl.end(); } 4131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump}; 4141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4155a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis} // end GR namespace 4165a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 4174241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek} // end clang namespace 4184241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 4194a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek// GraphTraits 4204a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 4214a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremeneknamespace llvm { 4229ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek template<> struct GraphTraits<clang::ento::ExplodedNode*> { 4239ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek typedef clang::ento::ExplodedNode NodeType; 424c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef NodeType::succ_iterator ChildIteratorType; 4254a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek typedef llvm::df_iterator<NodeType*> nodes_iterator; 4261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4274a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline NodeType* getEntryNode(NodeType* N) { 4284a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N; 4294a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4314a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_begin(NodeType* N) { 4324a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_begin(); 4334a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4354a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_end(NodeType* N) { 4364a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_end(); 4374a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4394a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_begin(NodeType* N) { 4404a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_begin(N); 4414a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4434a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_end(NodeType* N) { 4444a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_end(N); 4454a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4464a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek }; 4471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4489ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek template<> struct GraphTraits<const clang::ento::ExplodedNode*> { 4499ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek typedef const clang::ento::ExplodedNode NodeType; 450c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef NodeType::const_succ_iterator ChildIteratorType; 4514a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek typedef llvm::df_iterator<NodeType*> nodes_iterator; 4521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4534a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline NodeType* getEntryNode(NodeType* N) { 4544a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N; 4554a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4574a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_begin(NodeType* N) { 4584a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_begin(); 4594a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4614a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_end(NodeType* N) { 4624a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_end(); 4634a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4654a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_begin(NodeType* N) { 4664a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_begin(N); 4674a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4694a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_end(NodeType* N) { 4704a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_end(N); 4714a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4724a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek }; 4731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4744a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek} // end llvm namespace 4754a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 4764241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek#endif 477