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 1765903a373db3d27794c90b25687e0dd6adb0e497dAnna Zaks bool hasSinglePred() const { 1775903a373db3d27794c90b25687e0dd6adb0e497dAnna Zaks return (pred_size() == 1); 1785903a373db3d27794c90b25687e0dd6adb0e497dAnna Zaks } 1795903a373db3d27794c90b25687e0dd6adb0e497dAnna Zaks 1809c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *getFirstPred() { 18152c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek return pred_empty() ? NULL : *(pred_begin()); 18252c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek } 1831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1849c378f705405d37f49795d5e915989de774fe11fTed Kremenek const ExplodedNode *getFirstPred() const { 18552c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek return const_cast<ExplodedNode*>(this)->getFirstPred(); 18652c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek } 1871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1884a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek // Iterators over successor and predecessor vertices. 1894a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek typedef ExplodedNode** succ_iterator; 1903148eb4a75f70f2636075c364d03104223f004d3Ted Kremenek typedef const ExplodedNode* const * const_succ_iterator; 1914a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek typedef ExplodedNode** pred_iterator; 1923148eb4a75f70f2636075c364d03104223f004d3Ted Kremenek typedef const ExplodedNode* const * const_pred_iterator; 1934a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 194c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu pred_iterator pred_begin() { return Preds.begin(); } 195c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu pred_iterator pred_end() { return Preds.end(); } 1964a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 1974a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_pred_iterator pred_begin() const { 1984a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->pred_begin(); 1991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 2004a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_pred_iterator pred_end() const { 2014a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->pred_end(); 2024a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 2034a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 204c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu succ_iterator succ_begin() { return Succs.begin(); } 205c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu succ_iterator succ_end() { return Succs.end(); } 2064a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 2074a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_succ_iterator succ_begin() const { 2084a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->succ_begin(); 2094a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 2104a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_succ_iterator succ_end() const { 2114a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->succ_end(); 2124a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 213c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 214c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu // For debugging. 2151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 216c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xupublic: 2171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 218c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu class Auditor { 219c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu public: 220c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu virtual ~Auditor(); 2219c378f705405d37f49795d5e915989de774fe11fTed Kremenek virtual void AddEdge(ExplodedNode *Src, ExplodedNode *Dst) = 0; 222c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu }; 2231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 224c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu static void SetAuditor(Auditor* A); 225d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 226d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenekprivate: 227d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void replaceSuccessor(ExplodedNode *node) { Succs.replaceNode(node); } 228d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void replacePredecessor(ExplodedNode *node) { Preds.replaceNode(node); } 229c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu}; 230c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 23138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu// FIXME: Is this class necessary? 23238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xuclass InterExplodedGraphMap { 23399ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikie virtual void anchor(); 23438b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::DenseMap<const ExplodedNode*, ExplodedNode*> M; 2351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump friend class ExplodedGraph; 236c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 23738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xupublic: 2389c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *getMappedNode(const ExplodedNode *N) const; 2391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2407177dee8aee4b432911c91f1b788963bec0cac9fDaniel Dunbar InterExplodedGraphMap() {} 24138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu virtual ~InterExplodedGraphMap() {} 2424a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek}; 2434a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 24438b02b912e1a55c912f603c4369431264d36a381Zhongxing Xuclass ExplodedGraph { 2454241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenekprotected: 246d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class CoreEngine; 247e96de2dfde487211fb52f9139cdcae64d051a406Zhongxing Xu 2484241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek // Type definitions. 249626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek typedef std::vector<ExplodedNode *> NodeVector; 2501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 251626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek /// The roots of the simulation graph. Usually there will be only 2524241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// one, but clients are free to establish multiple subgraphs within a single 2534241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// SimulGraph. Moreover, these subgraphs can often merge when paths from 2544241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// different roots reach the same state at the same program location. 255626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek NodeVector Roots; 2564241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 257626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek /// The nodes in the simulation graph which have been 258626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek /// specially marked as the endpoint of an abstract simulation path. 259626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek NodeVector EndNodes; 26038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 26138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu /// Nodes - The nodes in the graph. 26238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::FoldingSet<ExplodedNode> Nodes; 26338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 2645fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek /// BVC - Allocator and context for allocating nodes and their predecessor 2655fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek /// and successor groups. 2665fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek BumpVectorContext BVC; 2671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26839b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek /// NumNodes - The number of nodes in the graph. 26939b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek unsigned NumNodes; 270d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 271d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// A list of recently allocated nodes that can potentially be recycled. 2722ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek NodeVector ChangedNodes; 273d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 274d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// A list of nodes that can be reused. 275626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek NodeVector FreeNodes; 276d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 277d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// A flag that indicates whether nodes should be recycled. 278d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek bool reclaimNodes; 2792ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek 2802ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek /// Counter to determine when to reclaim nodes. 2812ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek unsigned reclaimCounter; 2824241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 28338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xupublic: 2846800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks 2856800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks /// \brief Retrieve the node associated with a (Location,State) pair, 28638b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu /// where the 'Location' is a ProgramPoint in the CFG. If no node for 2876800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks /// this pair exists, it is created. IsNew is set to true if 28838b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu /// the node was freshly created. 2898bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek ExplodedNode *getNode(const ProgramPoint &L, ProgramStateRef State, 2906800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks bool IsSink = false, 29138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu bool* IsNew = 0); 2921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu ExplodedGraph* MakeEmptyGraph() const { 294c77a55126fcad66fb086f8e100a494caa2496a2dZhongxing Xu return new ExplodedGraph(); 29538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu } 2964a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 2974241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// addRoot - Add an untyped node to the set of roots. 2989c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *addRoot(ExplodedNode *V) { 299ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek Roots.push_back(V); 300ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek return V; 301ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek } 3024241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 3034241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// addEndOfPath - Add an untyped node to the set of EOP nodes. 3049c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *addEndOfPath(ExplodedNode *V) { 305ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek EndNodes.push_back(V); 306ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek return V; 307ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek } 30838b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 3099d0064e802e81d0833e8ccab8978b17c0bac3625Ted Kremenek ExplodedGraph(); 3104a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 311d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek ~ExplodedGraph(); 312d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 3134241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek unsigned num_roots() const { return Roots.size(); } 3144a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek unsigned num_eops() const { return EndNodes.size(); } 3151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31639b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek bool empty() const { return NumNodes == 0; } 31739b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek unsigned size() const { return NumNodes; } 318c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 3194241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek // Iterators. 32038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef ExplodedNode NodeTy; 32138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef llvm::FoldingSet<ExplodedNode> AllNodesTy; 322626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek typedef NodeVector::iterator roots_iterator; 323626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek typedef NodeVector::const_iterator const_roots_iterator; 324626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek typedef NodeVector::iterator eop_iterator; 325626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek typedef NodeVector::const_iterator const_eop_iterator; 32638b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef AllNodesTy::iterator node_iterator; 32738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef AllNodesTy::const_iterator const_node_iterator; 3281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu node_iterator nodes_begin() { return Nodes.begin(); } 3307ebde953bb050caa69f791fc1de449d435c6a36fTed Kremenek 33138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu node_iterator nodes_end() { return Nodes.end(); } 3321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_node_iterator nodes_begin() const { return Nodes.begin(); } 3341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_node_iterator nodes_end() const { return Nodes.end(); } 3361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu roots_iterator roots_begin() { return Roots.begin(); } 3381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu roots_iterator roots_end() { return Roots.end(); } 3401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_roots_iterator roots_begin() const { return Roots.begin(); } 3421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const_roots_iterator roots_end() const { return Roots.end(); } 3444241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 34538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu eop_iterator eop_begin() { return EndNodes.begin(); } 3461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu eop_iterator eop_end() { return EndNodes.end(); } 3481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_eop_iterator eop_begin() const { return EndNodes.begin(); } 3501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_eop_iterator eop_end() const { return EndNodes.end(); } 35238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 3535fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek llvm::BumpPtrAllocator & getAllocator() { return BVC.getAllocator(); } 3545fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek BumpVectorContext &getNodeAllocator() { return BVC; } 35538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 35638b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef llvm::DenseMap<const ExplodedNode*, ExplodedNode*> NodeMap; 35738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 358c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu std::pair<ExplodedGraph*, InterExplodedGraphMap*> 359fe9e543a2a363df7fcaa899367d3b2580b63b27cTed Kremenek Trim(const NodeTy* const* NBeg, const NodeTy* const* NEnd, 36038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::DenseMap<const void*, const void*> *InverseMap = 0) const; 361cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek 36238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu ExplodedGraph* TrimInternal(const ExplodedNode* const * NBeg, 36338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const ExplodedNode* const * NEnd, 36438b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu InterExplodedGraphMap *M, 36538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::DenseMap<const void*, const void*> *InverseMap) const; 366d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 367d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// Enable tracking of recently allocated nodes for potential reclamation 3682ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek /// when calling reclaimRecentlyAllocatedNodes(). 369d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void enableNodeReclamation() { reclaimNodes = true; } 370d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 371d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// Reclaim "uninteresting" nodes created since the last time this method 372d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// was called. 3732ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek void reclaimRecentlyAllocatedNodes(); 374841c96a885789afea9d32d1d842033768c6d2b19Ted Kremenek 375841c96a885789afea9d32d1d842033768c6d2b19Ted Kremenekprivate: 376841c96a885789afea9d32d1d842033768c6d2b19Ted Kremenek bool shouldCollect(const ExplodedNode *node); 377841c96a885789afea9d32d1d842033768c6d2b19Ted Kremenek void collectNode(ExplodedNode *node); 3784241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek}; 379cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek 380f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenekclass ExplodedNodeSet { 381c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef llvm::SmallPtrSet<ExplodedNode*,5> ImplTy; 382f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek ImplTy Impl; 3831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 384f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenekpublic: 3859c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNodeSet(ExplodedNode *N) { 386c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu assert (N && !static_cast<ExplodedNode*>(N)->isSink()); 387f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek Impl.insert(N); 388f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek } 3891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 390f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek ExplodedNodeSet() {} 3911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3929c378f705405d37f49795d5e915989de774fe11fTed Kremenek inline void Add(ExplodedNode *N) { 393c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu if (N && !static_cast<ExplodedNode*>(N)->isSink()) Impl.insert(N); 394f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek } 3951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 396c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef ImplTy::iterator iterator; 397c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef ImplTy::const_iterator const_iterator; 398f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek 399fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek unsigned size() const { return Impl.size(); } 400fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek bool empty() const { return Impl.empty(); } 4011aae01a8308d2f8e31adab3f4d7ac35543aac680Anna Zaks bool erase(ExplodedNode *N) { return Impl.erase(N); } 402fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek 403fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek void clear() { Impl.clear(); } 404fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek void insert(const ExplodedNodeSet &S) { 4052d950b15b2b2b650b102ecf0c6b50b45e0cb6a8aAnna Zaks assert(&S != this); 406fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek if (empty()) 407fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek Impl = S.Impl; 408fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek else 409fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek Impl.insert(S.begin(), S.end()); 410fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek } 4111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 412f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline iterator begin() { return Impl.begin(); } 413f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline iterator end() { return Impl.end(); } 4141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 415f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline const_iterator begin() const { return Impl.begin(); } 416f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline const_iterator end() const { return Impl.end(); } 4171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump}; 4181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4195a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis} // end GR namespace 4205a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 4214241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek} // end clang namespace 4224241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 4234a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek// GraphTraits 4244a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 4254a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremeneknamespace llvm { 4269ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek template<> struct GraphTraits<clang::ento::ExplodedNode*> { 4279ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek typedef clang::ento::ExplodedNode NodeType; 428c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef NodeType::succ_iterator ChildIteratorType; 4294a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek typedef llvm::df_iterator<NodeType*> nodes_iterator; 4301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4314a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline NodeType* getEntryNode(NodeType* N) { 4324a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N; 4334a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4354a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_begin(NodeType* N) { 4364a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_begin(); 4374a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4394a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_end(NodeType* N) { 4404a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_end(); 4414a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4434a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_begin(NodeType* N) { 4444a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_begin(N); 4454a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4474a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_end(NodeType* N) { 4484a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_end(N); 4494a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4504a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek }; 4511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4529ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek template<> struct GraphTraits<const clang::ento::ExplodedNode*> { 4539ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek typedef const clang::ento::ExplodedNode NodeType; 454c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef NodeType::const_succ_iterator ChildIteratorType; 4554a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek typedef llvm::df_iterator<NodeType*> nodes_iterator; 4561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4574a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline NodeType* getEntryNode(NodeType* N) { 4584a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N; 4594a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4614a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_begin(NodeType* N) { 4624a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_begin(); 4634a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4654a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_end(NodeType* N) { 4664a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_end(); 4674a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4694a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_begin(NodeType* N) { 4704a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_begin(N); 4714a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4734a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_end(NodeType* N) { 4744a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_end(N); 4754a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4764a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek }; 4771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4784a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek} // end llvm namespace 4794a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 4804241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek#endif 481