ExplodedGraph.h revision 46e778145c56cd9b42cb399795a294b29cb78b62
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 { 6446e778145c56cd9b42cb399795a294b29cb78b62Jordan Rose // Conceptually a discriminated union. If the low bit is set, the node is 6546e778145c56cd9b42cb399795a294b29cb78b62Jordan Rose // a sink. If the low bit is not set, the pointer refers to the storage 6646e778145c56cd9b42cb399795a294b29cb78b62Jordan Rose // for the nodes in the group. 674c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek uintptr_t P; 68d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 694c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek public: 7046e778145c56cd9b42cb399795a294b29cb78b62Jordan Rose NodeGroup(bool Flag = false) : P(Flag) { 7146e778145c56cd9b42cb399795a294b29cb78b62Jordan Rose assert(getFlag() == Flag); 7246e778145c56cd9b42cb399795a294b29cb78b62Jordan Rose } 731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7446e778145c56cd9b42cb399795a294b29cb78b62Jordan Rose ExplodedNode * const *begin() const; 751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7646e778145c56cd9b42cb399795a294b29cb78b62Jordan Rose ExplodedNode * const *end() const; 771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 785d5480380d7b7c3590a0283ddf239220e514e576Ted Kremenek unsigned size() const; 791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8046e778145c56cd9b42cb399795a294b29cb78b62Jordan Rose bool empty() const { return P == 0 || getFlag() != 0; } 811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 829c378f705405d37f49795d5e915989de774fe11fTed Kremenek void addNode(ExplodedNode *N, ExplodedGraph &G); 831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 84d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void replaceNode(ExplodedNode *node); 85d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 86b38911f16b4943548db6a3695fc6ae23070b25d2Ted Kremenek bool getFlag() const { 8746e778145c56cd9b42cb399795a294b29cb78b62Jordan Rose return (P & 1); 88f24af5bc2e01ca8e7396ed997378a77fddfa521eTed Kremenek } 891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump }; 901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 914a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek /// Location - The program location (within a function body) associated 924a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek /// with this node. 934a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const ProgramPoint Location; 941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 954323a57627e796dcfdfdb7d47672dc09ed308edaTed Kremenek /// State - The state associated with this node. 968bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek ProgramStateRef State; 971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 984a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek /// Preds - The predecessors of this node. 994c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek NodeGroup Preds; 1001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1014a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek /// Succs - The successors of this node. 1024c4cb527a44037d076da82ad9d12b4e655e64dbbTed Kremenek NodeGroup Succs; 103c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1044a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenekpublic: 105c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1068bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek explicit ExplodedNode(const ProgramPoint &loc, ProgramStateRef state, 1076800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks bool IsSink) 10846e778145c56cd9b42cb399795a294b29cb78b62Jordan Rose : Location(loc), State(state), Succs(IsSink) { 10946e778145c56cd9b42cb399795a294b29cb78b62Jordan Rose assert(isSink() == IsSink); 110e40b69de464bc695afcaf7ef9602ad727d77b981Ted Kremenek } 111e40b69de464bc695afcaf7ef9602ad727d77b981Ted Kremenek 112a5888f61be9f8d76e9b48a453dbced50523bd2e0Argyrios Kyrtzidis ~ExplodedNode() {} 113c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1144a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek /// getLocation - Returns the edge associated with the given node. 1150f9063c116b7c3b05d8042b5976463c2dae04861Ted Kremenek ProgramPoint getLocation() const { return Location; } 116c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const LocationContext *getLocationContext() const { 1181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return getLocation().getLocationContext(); 11925e695b2d574d919cc1bbddf3a2efe073d449b1cZhongxing Xu } 12025e695b2d574d919cc1bbddf3a2efe073d449b1cZhongxing Xu 121955cd444f445bcdbade1cdd3926254c8ee7890d8Anna Zaks const StackFrameContext *getStackFrame() const { 122955cd444f445bcdbade1cdd3926254c8ee7890d8Anna Zaks return getLocationContext()->getCurrentStackFrame(); 123955cd444f445bcdbade1cdd3926254c8ee7890d8Anna Zaks } 124955cd444f445bcdbade1cdd3926254c8ee7890d8Anna Zaks 1255032ffe4259e7d436f2eb19e5a29fdae559e7c12Zhongxing Xu const Decl &getCodeDecl() const { return *getLocationContext()->getDecl(); } 1265032ffe4259e7d436f2eb19e5a29fdae559e7c12Zhongxing Xu 1275032ffe4259e7d436f2eb19e5a29fdae559e7c12Zhongxing Xu CFG &getCFG() const { return *getLocationContext()->getCFG(); } 1285032ffe4259e7d436f2eb19e5a29fdae559e7c12Zhongxing Xu 129b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu ParentMap &getParentMap() const {return getLocationContext()->getParentMap();} 130b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu 131a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek template <typename T> 132a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek T &getAnalysis() const { 133a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek return *getLocationContext()->getAnalysis<T>(); 134c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu } 135c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1368bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek ProgramStateRef getState() const { return State; } 137b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu 13852c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek template <typename T> 13952c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek const T* getLocationAs() const { return llvm::dyn_cast<T>(&Location); } 140c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static void Profile(llvm::FoldingSetNodeID &ID, 1426800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks const ProgramPoint &Loc, 1431831bd29572b6a7243da73d9606209190c0217deBenjamin Kramer const ProgramStateRef &state, 1446800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks bool IsSink) { 1455fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek ID.Add(Loc); 146a5888f61be9f8d76e9b48a453dbced50523bd2e0Argyrios Kyrtzidis ID.AddPointer(state.getPtr()); 1476800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks ID.AddBoolean(IsSink); 1485fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek } 149c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 150c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu void Profile(llvm::FoldingSetNodeID& ID) const { 1516800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks Profile(ID, getLocation(), getState(), isSink()); 152c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu } 153c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// addPredeccessor - Adds a predecessor to the current node, and 155c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu /// in tandem add this node as a successor of the other node. 1569c378f705405d37f49795d5e915989de774fe11fTed Kremenek void addPredecessor(ExplodedNode *V, ExplodedGraph &G); 157c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 1584a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek unsigned succ_size() const { return Succs.size(); } 1594a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek unsigned pred_size() const { return Preds.size(); } 1604a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek bool succ_empty() const { return Succs.empty(); } 1610e8a3c743b9b3e3039e329a1736122d3b5b5fed9Ted Kremenek bool pred_empty() const { return Preds.empty(); } 1621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 163ffe0f43806d4823271c2406c1fccc2373115c36aTed Kremenek bool isSink() const { return Succs.getFlag(); } 1644a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 1655903a373db3d27794c90b25687e0dd6adb0e497dAnna Zaks bool hasSinglePred() const { 1665903a373db3d27794c90b25687e0dd6adb0e497dAnna Zaks return (pred_size() == 1); 1675903a373db3d27794c90b25687e0dd6adb0e497dAnna Zaks } 1685903a373db3d27794c90b25687e0dd6adb0e497dAnna Zaks 1699c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *getFirstPred() { 17052c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek return pred_empty() ? NULL : *(pred_begin()); 17152c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek } 1721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1739c378f705405d37f49795d5e915989de774fe11fTed Kremenek const ExplodedNode *getFirstPred() const { 17452c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek return const_cast<ExplodedNode*>(this)->getFirstPred(); 17552c3196a89a26cebcf069dd140c3396b743b8e33Ted Kremenek } 1761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1774a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek // Iterators over successor and predecessor vertices. 17846e778145c56cd9b42cb399795a294b29cb78b62Jordan Rose typedef ExplodedNode* const * succ_iterator; 1793148eb4a75f70f2636075c364d03104223f004d3Ted Kremenek typedef const ExplodedNode* const * const_succ_iterator; 18046e778145c56cd9b42cb399795a294b29cb78b62Jordan Rose typedef ExplodedNode* const * pred_iterator; 1813148eb4a75f70f2636075c364d03104223f004d3Ted Kremenek typedef const ExplodedNode* const * const_pred_iterator; 1824a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 183c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu pred_iterator pred_begin() { return Preds.begin(); } 184c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu pred_iterator pred_end() { return Preds.end(); } 1854a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 1864a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_pred_iterator pred_begin() const { 1874a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->pred_begin(); 1881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1894a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_pred_iterator pred_end() const { 1904a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->pred_end(); 1914a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 1924a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 193c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu succ_iterator succ_begin() { return Succs.begin(); } 194c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu succ_iterator succ_end() { return Succs.end(); } 1954a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 1964a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_succ_iterator succ_begin() const { 1974a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->succ_begin(); 1984a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 1994a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek const_succ_iterator succ_end() const { 2004a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return const_cast<ExplodedNode*>(this)->succ_end(); 2014a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 202c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 203c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu // For debugging. 2041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 205c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xupublic: 2061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 207c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu class Auditor { 208c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu public: 209c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu virtual ~Auditor(); 2109c378f705405d37f49795d5e915989de774fe11fTed Kremenek virtual void AddEdge(ExplodedNode *Src, ExplodedNode *Dst) = 0; 211c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu }; 2121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 213c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu static void SetAuditor(Auditor* A); 214d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 215d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenekprivate: 216d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void replaceSuccessor(ExplodedNode *node) { Succs.replaceNode(node); } 217d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void replacePredecessor(ExplodedNode *node) { Preds.replaceNode(node); } 218c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu}; 219c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 22038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu// FIXME: Is this class necessary? 22138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xuclass InterExplodedGraphMap { 22299ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikie virtual void anchor(); 22338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::DenseMap<const ExplodedNode*, ExplodedNode*> M; 2241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump friend class ExplodedGraph; 225c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 22638b02b912e1a55c912f603c4369431264d36a381Zhongxing Xupublic: 2279c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *getMappedNode(const ExplodedNode *N) const; 2281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2297177dee8aee4b432911c91f1b788963bec0cac9fDaniel Dunbar InterExplodedGraphMap() {} 23038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu virtual ~InterExplodedGraphMap() {} 2314a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek}; 2324a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 23338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xuclass ExplodedGraph { 2344241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenekprotected: 235d2592a34a059e7cbb2b11dc53649ac4912422909Argyrios Kyrtzidis friend class CoreEngine; 236e96de2dfde487211fb52f9139cdcae64d051a406Zhongxing Xu 2374241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek // Type definitions. 238626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek typedef std::vector<ExplodedNode *> NodeVector; 2391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 240626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek /// The roots of the simulation graph. Usually there will be only 2414241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// one, but clients are free to establish multiple subgraphs within a single 2424241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// SimulGraph. Moreover, these subgraphs can often merge when paths from 2434241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// different roots reach the same state at the same program location. 244626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek NodeVector Roots; 2454241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 246626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek /// The nodes in the simulation graph which have been 247626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek /// specially marked as the endpoint of an abstract simulation path. 248626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek NodeVector EndNodes; 24938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 25038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu /// Nodes - The nodes in the graph. 25138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::FoldingSet<ExplodedNode> Nodes; 25238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 2535fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek /// BVC - Allocator and context for allocating nodes and their predecessor 2545fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek /// and successor groups. 2555fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek BumpVectorContext BVC; 2561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25739b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek /// NumNodes - The number of nodes in the graph. 25839b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek unsigned NumNodes; 259d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 260d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// A list of recently allocated nodes that can potentially be recycled. 2612ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek NodeVector ChangedNodes; 262d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 263d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// A list of nodes that can be reused. 264626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek NodeVector FreeNodes; 265d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 266d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// A flag that indicates whether nodes should be recycled. 267d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek bool reclaimNodes; 2682ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek 2692ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek /// Counter to determine when to reclaim nodes. 2702ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek unsigned reclaimCounter; 2714241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 27238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xupublic: 2736800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks 2746800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks /// \brief Retrieve the node associated with a (Location,State) pair, 27538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu /// where the 'Location' is a ProgramPoint in the CFG. If no node for 2766800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks /// this pair exists, it is created. IsNew is set to true if 27738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu /// the node was freshly created. 2788bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek ExplodedNode *getNode(const ProgramPoint &L, ProgramStateRef State, 2796800ba622e4edf287801ac69c42c61e7e294b06bAnna Zaks bool IsSink = false, 28038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu bool* IsNew = 0); 2811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu ExplodedGraph* MakeEmptyGraph() const { 283c77a55126fcad66fb086f8e100a494caa2496a2dZhongxing Xu return new ExplodedGraph(); 28438b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu } 2854a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 2864241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// addRoot - Add an untyped node to the set of roots. 2879c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *addRoot(ExplodedNode *V) { 288ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek Roots.push_back(V); 289ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek return V; 290ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek } 2914241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 2924241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek /// addEndOfPath - Add an untyped node to the set of EOP nodes. 2939c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNode *addEndOfPath(ExplodedNode *V) { 294ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek EndNodes.push_back(V); 295ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek return V; 296ede5a4ba111f0590879670b6cb07f4d6d0bd9075Ted Kremenek } 29738b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 2989d0064e802e81d0833e8ccab8978b17c0bac3625Ted Kremenek ExplodedGraph(); 2994a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 300d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek ~ExplodedGraph(); 301d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 3024241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek unsigned num_roots() const { return Roots.size(); } 3034a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek unsigned num_eops() const { return EndNodes.size(); } 3041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30539b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek bool empty() const { return NumNodes == 0; } 30639b4c6c98d391b25c376782cf92346aa88c96f7eTed Kremenek unsigned size() const { return NumNodes; } 307c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu 3084241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek // Iterators. 30938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef ExplodedNode NodeTy; 31038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef llvm::FoldingSet<ExplodedNode> AllNodesTy; 311626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek typedef NodeVector::iterator roots_iterator; 312626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek typedef NodeVector::const_iterator const_roots_iterator; 313626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek typedef NodeVector::iterator eop_iterator; 314626719bd2c09e27fe7c182724a812d27f59e3819Ted Kremenek typedef NodeVector::const_iterator const_eop_iterator; 31538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef AllNodesTy::iterator node_iterator; 31638b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef AllNodesTy::const_iterator const_node_iterator; 3171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31838b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu node_iterator nodes_begin() { return Nodes.begin(); } 3197ebde953bb050caa69f791fc1de449d435c6a36fTed Kremenek 32038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu node_iterator nodes_end() { return Nodes.end(); } 3211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_node_iterator nodes_begin() const { return Nodes.begin(); } 3231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32438b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_node_iterator nodes_end() const { return Nodes.end(); } 3251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32638b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu roots_iterator roots_begin() { return Roots.begin(); } 3271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32838b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu roots_iterator roots_end() { return Roots.end(); } 3291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_roots_iterator roots_begin() const { return Roots.begin(); } 3311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const_roots_iterator roots_end() const { return Roots.end(); } 3334241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 33438b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu eop_iterator eop_begin() { return EndNodes.begin(); } 3351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33638b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu eop_iterator eop_end() { return EndNodes.end(); } 3371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33838b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_eop_iterator eop_begin() const { return EndNodes.begin(); } 3391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34038b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const_eop_iterator eop_end() const { return EndNodes.end(); } 34138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 3425fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek llvm::BumpPtrAllocator & getAllocator() { return BVC.getAllocator(); } 3435fe4d9deb543a19f557e3d85c5f33867af97cd96Ted Kremenek BumpVectorContext &getNodeAllocator() { return BVC; } 34438b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 34538b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu typedef llvm::DenseMap<const ExplodedNode*, ExplodedNode*> NodeMap; 34638b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu 347c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu std::pair<ExplodedGraph*, InterExplodedGraphMap*> 348fe9e543a2a363df7fcaa899367d3b2580b63b27cTed Kremenek Trim(const NodeTy* const* NBeg, const NodeTy* const* NEnd, 34938b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::DenseMap<const void*, const void*> *InverseMap = 0) const; 350cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek 35138b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu ExplodedGraph* TrimInternal(const ExplodedNode* const * NBeg, 35238b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu const ExplodedNode* const * NEnd, 35338b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu InterExplodedGraphMap *M, 35438b02b912e1a55c912f603c4369431264d36a381Zhongxing Xu llvm::DenseMap<const void*, const void*> *InverseMap) const; 355d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 356d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// Enable tracking of recently allocated nodes for potential reclamation 3572ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek /// when calling reclaimRecentlyAllocatedNodes(). 358d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek void enableNodeReclamation() { reclaimNodes = true; } 359d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek 360d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// Reclaim "uninteresting" nodes created since the last time this method 361d767d81290288c030f3be0be1d3e62b9c8df51dcTed Kremenek /// was called. 3622ac58b7c09938bb28c51c7cd2deada609b75f94cTed Kremenek void reclaimRecentlyAllocatedNodes(); 363841c96a885789afea9d32d1d842033768c6d2b19Ted Kremenek 364841c96a885789afea9d32d1d842033768c6d2b19Ted Kremenekprivate: 365841c96a885789afea9d32d1d842033768c6d2b19Ted Kremenek bool shouldCollect(const ExplodedNode *node); 366841c96a885789afea9d32d1d842033768c6d2b19Ted Kremenek void collectNode(ExplodedNode *node); 3674241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek}; 368cf118d41f7930a18dce97416ef7834a62642f587Ted Kremenek 369f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenekclass ExplodedNodeSet { 370c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef llvm::SmallPtrSet<ExplodedNode*,5> ImplTy; 371f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek ImplTy Impl; 3721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 373f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenekpublic: 3749c378f705405d37f49795d5e915989de774fe11fTed Kremenek ExplodedNodeSet(ExplodedNode *N) { 375c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu assert (N && !static_cast<ExplodedNode*>(N)->isSink()); 376f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek Impl.insert(N); 377f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek } 3781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 379f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek ExplodedNodeSet() {} 3801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3819c378f705405d37f49795d5e915989de774fe11fTed Kremenek inline void Add(ExplodedNode *N) { 382c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu if (N && !static_cast<ExplodedNode*>(N)->isSink()) Impl.insert(N); 383f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek } 3841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 385c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef ImplTy::iterator iterator; 386c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef ImplTy::const_iterator const_iterator; 387f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek 388fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek unsigned size() const { return Impl.size(); } 389fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek bool empty() const { return Impl.empty(); } 3901aae01a8308d2f8e31adab3f4d7ac35543aac680Anna Zaks bool erase(ExplodedNode *N) { return Impl.erase(N); } 391fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek 392fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek void clear() { Impl.clear(); } 393fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek void insert(const ExplodedNodeSet &S) { 3942d950b15b2b2b650b102ecf0c6b50b45e0cb6a8aAnna Zaks assert(&S != this); 395fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek if (empty()) 396fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek Impl = S.Impl; 397fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek else 398fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek Impl.insert(S.begin(), S.end()); 399fee96e043108b6e24e7d4c5464bf89ac970a7f81Ted Kremenek } 4001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 401f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline iterator begin() { return Impl.begin(); } 402f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline iterator end() { return Impl.end(); } 4031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 404f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline const_iterator begin() const { return Impl.begin(); } 405f6f5ef4aaa66b60270e84d1fe1292886369d2f38Ted Kremenek inline const_iterator end() const { return Impl.end(); } 4061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump}; 4071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4085a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis} // end GR namespace 4095a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 4104241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek} // end clang namespace 4114241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek 4124a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek// GraphTraits 4134a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 4144a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremeneknamespace llvm { 4159ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek template<> struct GraphTraits<clang::ento::ExplodedNode*> { 4169ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek typedef clang::ento::ExplodedNode NodeType; 417c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef NodeType::succ_iterator ChildIteratorType; 4184a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek typedef llvm::df_iterator<NodeType*> nodes_iterator; 4191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4204a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline NodeType* getEntryNode(NodeType* N) { 4214a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N; 4224a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4244a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_begin(NodeType* N) { 4254a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_begin(); 4264a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4284a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_end(NodeType* N) { 4294a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_end(); 4304a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4324a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_begin(NodeType* N) { 4334a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_begin(N); 4344a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4364a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_end(NodeType* N) { 4374a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_end(N); 4384a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4394a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek }; 4401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4419ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek template<> struct GraphTraits<const clang::ento::ExplodedNode*> { 4429ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek typedef const clang::ento::ExplodedNode NodeType; 443c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu typedef NodeType::const_succ_iterator ChildIteratorType; 4444a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek typedef llvm::df_iterator<NodeType*> nodes_iterator; 4451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4464a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline NodeType* getEntryNode(NodeType* N) { 4474a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N; 4484a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4504a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_begin(NodeType* N) { 4514a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_begin(); 4524a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4544a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline ChildIteratorType child_end(NodeType* N) { 4554a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return N->succ_end(); 4564a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4584a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_begin(NodeType* N) { 4594a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_begin(N); 4604a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4624a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek static inline nodes_iterator nodes_end(NodeType* N) { 4634a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek return df_end(N); 4644a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek } 4654a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek }; 4661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4674a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek} // end llvm namespace 4684a0f5f1646637fcf90eb236b5a46f40e5a5dd739Ted Kremenek 4694241b3d1ad87e9a593bbc6cdf0f49435d5aec235Ted Kremenek#endif 470