MemRegion.h revision 7f39d29cb69e7488f994870800d548008e50e1cb
19e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek//== MemRegion.h - Abstract memory regions for static analysis --*- C++ -*--==// 29e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek// 39e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek// The LLVM Compiler Infrastructure 49e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek// 59e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek// This file is distributed under the University of Illinois Open Source 69e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek// License. See LICENSE.TXT for details. 79e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek// 89e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek//===----------------------------------------------------------------------===// 99e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek// 109e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek// This file defines MemRegion and its subclasses. MemRegion defines a 119e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek// partially-typed abstraction of memory useful for path-sensitive dataflow 129e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek// analyses. 139e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek// 149e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek//===----------------------------------------------------------------------===// 159e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 169e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek#ifndef LLVM_CLANG_ANALYSIS_MEMREGION_H 179e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek#define LLVM_CLANG_ANALYSIS_MEMREGION_H 189e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 19993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek#include "clang/AST/Decl.h" 20993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek#include "clang/AST/DeclObjC.h" 21993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek#include "clang/Analysis/PathSensitive/SymbolManager.h" 2222ab7a4d900ed53285fd0b6720e7b43af84724d8Zhongxing Xu#include "clang/Analysis/PathSensitive/SVals.h" 23a693d4fa7a6dc31b23837cf38cba7aa2af8f00f3Ted Kremenek#include "clang/AST/ASTContext.h" 249e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek#include "llvm/Support/Casting.h" 259e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek#include "llvm/ADT/FoldingSet.h" 26dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu#include "llvm/ADT/ImmutableList.h" 27dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu#include "llvm/ADT/ImmutableMap.h" 289e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek#include "llvm/Support/Allocator.h" 299e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek#include <string> 309e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 319e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremeneknamespace llvm { class raw_ostream; } 329e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 339e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremeneknamespace clang { 349e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 359e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass MemRegionManager; 36bb7c96f290453104ec35ca17111a5165f68a4697Ted Kremenekclass MemSpaceRegion; 379e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 389e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek/// MemRegion - The root abstract class for all memory regions. 399e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass MemRegion : public llvm::FoldingSetNode { 409e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekpublic: 41026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu enum Kind { MemSpaceRegionKind, 42e8e86482da4c1872673bbb9c237649229d19793bTed Kremenek SymbolicRegionKind, 4382bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek AllocaRegionKind, 449e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek // Typed regions. 459e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek BEG_TYPED_REGIONS, 46369f447eded97e6048ced02c0c2be3842f61fc1cZhongxing Xu CodeTextRegionKind, 4777cfac623178d0c16e16e2f171d20b0fea8fde30Zhongxing Xu CompoundLiteralRegionKind, 48329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek StringRegionKind, ElementRegionKind, 490312c0e09c9de480d78607972ac64a88f4e94a33Ted Kremenek TypedViewRegionKind, 50329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek // Decl Regions. 51329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek BEG_DECL_REGIONS, 52329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek VarRegionKind, FieldRegionKind, 53329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek ObjCIvarRegionKind, ObjCObjectRegionKind, 54329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek END_DECL_REGIONS, 559e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek END_TYPED_REGIONS }; 569e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekprivate: 579e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek const Kind kind; 589e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 599e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekprotected: 609e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek MemRegion(Kind k) : kind(k) {} 619e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek virtual ~MemRegion(); 62a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek ASTContext &getContext() const; 639e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 649e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekpublic: 659e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek virtual void Profile(llvm::FoldingSetNodeID& ID) const = 0; 66a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek 67a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek virtual MemRegionManager* getMemRegionManager() const = 0; 68a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek 699e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek std::string getString() const; 70bb7c96f290453104ec35ca17111a5165f68a4697Ted Kremenek 71bb7c96f290453104ec35ca17111a5165f68a4697Ted Kremenek const MemSpaceRegion *getMemorySpace() const; 72ea20cd74793d257679267032419a9ff7fc89dc05Ted Kremenek 73ea20cd74793d257679267032419a9ff7fc89dc05Ted Kremenek bool hasStackStorage() const; 74ea20cd74793d257679267032419a9ff7fc89dc05Ted Kremenek 75ea20cd74793d257679267032419a9ff7fc89dc05Ted Kremenek bool hasHeapStorage() const; 76bb7c96f290453104ec35ca17111a5165f68a4697Ted Kremenek 77bb7c96f290453104ec35ca17111a5165f68a4697Ted Kremenek bool hasHeapOrStackStorage() const; 78b21ff77c8126ea628b66d2ffb931fdaa7884f5d2Zhongxing Xu 797f39d29cb69e7488f994870800d548008e50e1cbTed Kremenek virtual void print(llvm::raw_ostream& os) const; 807f39d29cb69e7488f994870800d548008e50e1cbTed Kremenek 817f39d29cb69e7488f994870800d548008e50e1cbTed Kremenek void printStdErr() const; 829e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 839e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek Kind getKind() const { return kind; } 8441168eac256fed59ec5406a75fce91c59cd5dd91Ted Kremenek 85ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek template<typename RegionTy> const RegionTy* getAs() const; 86ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek 87f0f0605c87739c906861f73d4287798a4969b1e0Zhongxing Xu virtual bool isBoundable() const { return false; } 88b21ff77c8126ea628b66d2ffb931fdaa7884f5d2Zhongxing Xu 899e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek static bool classof(const MemRegion*) { return true; } 909e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek}; 919e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 929e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek/// MemSpaceRegion - A memory region that represents and "memory space"; 939e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek/// for example, the set of global variables, the stack frame, etc. 949e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass MemSpaceRegion : public MemRegion { 959e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek friend class MemRegionManager; 96a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek 97a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenekprotected: 98a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek MemRegionManager *Mgr; 99a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek 100a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek MemSpaceRegion(MemRegionManager *mgr) : MemRegion(MemSpaceRegionKind), 101a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek Mgr(mgr) {} 1029e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 103a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek MemRegionManager* getMemRegionManager() const { 104a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek return Mgr; 105a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek } 106a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek 1079e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekpublic: 1089e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek void Profile(llvm::FoldingSetNodeID& ID) const; 1099e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 110a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek bool isBoundable() const { return false; } 11141168eac256fed59ec5406a75fce91c59cd5dd91Ted Kremenek 1129e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek static bool classof(const MemRegion* R) { 1139e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return R->getKind() == MemSpaceRegionKind; 1149e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 1159e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek}; 1169e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 117993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek/// SubRegion - A region that subsets another larger region. Most regions 118993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek/// are subclasses of SubRegion. 119993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenekclass SubRegion : public MemRegion { 1209e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekprotected: 121993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek const MemRegion* superRegion; 122993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek SubRegion(const MemRegion* sReg, Kind k) : MemRegion(k), superRegion(sReg) {} 1239e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekpublic: 1249e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek const MemRegion* getSuperRegion() const { 1259e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return superRegion; 1269e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 127a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek 128a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek MemRegionManager* getMemRegionManager() const; 1294193eca10ce0cc8b2dae887e935a43b26f492b5bZhongxing Xu 1307e5d6ed47dcedce35043de59ee00464b681bc786Zhongxing Xu bool isSubRegionOf(const MemRegion* R) const; 1317e5d6ed47dcedce35043de59ee00464b681bc786Zhongxing Xu 1329e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek static bool classof(const MemRegion* R) { 133026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu return R->getKind() > MemSpaceRegionKind; 134993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek } 135993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek}; 136ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 13782bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek/// AllocaRegion - A region that represents an untyped blob of bytes created 13882bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek/// by a call to 'alloca'. 13982bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenekclass AllocaRegion : public SubRegion { 14082bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek friend class MemRegionManager; 14182bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenekprotected: 14282bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek unsigned Cnt; // Block counter. Used to distinguish different pieces of 14382bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek // memory allocated by alloca at the same call site. 14482bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek const Expr* Ex; 14582bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek 1467ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek AllocaRegion(const Expr* ex, unsigned cnt, const MemRegion *superRegion) 14782bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek : SubRegion(superRegion, AllocaRegionKind), Cnt(cnt), Ex(ex) {} 14882bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek 14982bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenekpublic: 15082bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek 15182bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek const Expr* getExpr() const { return Ex; } 15282bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek 15382bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek void Profile(llvm::FoldingSetNodeID& ID) const; 15482bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek 15582bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, const Expr* Ex, 1567ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek unsigned Cnt, const MemRegion *superRegion); 15782bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek 15882bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek void print(llvm::raw_ostream& os) const; 15982bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek 16082bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek static bool classof(const MemRegion* R) { 16182bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek return R->getKind() == AllocaRegionKind; 16282bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek } 16382bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek}; 16482bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek 165993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek/// TypedRegion - An abstract class representing regions that are typed. 166993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenekclass TypedRegion : public SubRegion { 167993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenekprotected: 168993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek TypedRegion(const MemRegion* sReg, Kind k) : SubRegion(sReg, k) {} 169993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek 170993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenekpublic: 171a82d8aa5b3b3d24998b4d98b9f45a43cc84cac6fZhongxing Xu virtual QualType getValueType(ASTContext &C) const = 0; 1726eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek 173ff6978263439e21d795b0602fabcb38488ef8441Zhongxing Xu virtual QualType getLocationType(ASTContext& C) const { 1746eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek // FIXME: We can possibly optimize this later to cache this value. 175a82d8aa5b3b3d24998b4d98b9f45a43cc84cac6fZhongxing Xu return C.getPointerType(getValueType(C)); 1766eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek } 17714553abd17d303b0b310b3ab1523eb0d30d8121cTed Kremenek 178a82d8aa5b3b3d24998b4d98b9f45a43cc84cac6fZhongxing Xu QualType getDesugaredValueType(ASTContext& C) const { 179a82d8aa5b3b3d24998b4d98b9f45a43cc84cac6fZhongxing Xu QualType T = getValueType(C); 1801b9b883a95215e38e153d253a46a2a2fcac25896Ted Kremenek return T.getTypePtr() ? T->getDesugaredType() : T; 18114553abd17d303b0b310b3ab1523eb0d30d8121cTed Kremenek } 18214553abd17d303b0b310b3ab1523eb0d30d8121cTed Kremenek 183ff6978263439e21d795b0602fabcb38488ef8441Zhongxing Xu QualType getDesugaredLocationType(ASTContext& C) const { 184ff6978263439e21d795b0602fabcb38488ef8441Zhongxing Xu return getLocationType(C)->getDesugaredType(); 18514553abd17d303b0b310b3ab1523eb0d30d8121cTed Kremenek } 1861b9b883a95215e38e153d253a46a2a2fcac25896Ted Kremenek 187a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek bool isBoundable() const { 188a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek return !getValueType(getContext()).isNull(); 18941168eac256fed59ec5406a75fce91c59cd5dd91Ted Kremenek } 1906eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek 191993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek static bool classof(const MemRegion* R) { 1929e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek unsigned k = R->getKind(); 1939e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return k > BEG_TYPED_REGIONS && k < END_TYPED_REGIONS; 1949e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 1959e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek}; 1969e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 197ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu/// CodeTextRegion - A region that represents code texts of a function. It wraps 198ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu/// two kinds of code texts: real function and symbolic function. Real function 199ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu/// is a function declared in the program. Symbolic function is a function 200ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu/// pointer that we don't know which function it points to. 201ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xuclass CodeTextRegion : public TypedRegion { 202ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xupublic: 203ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu enum CodeKind { Declared, Symbolic }; 204ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 205ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xuprivate: 206ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu // The function pointer kind that this CodeTextRegion represents. 207ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu CodeKind codekind; 208ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 209ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu // Data may be a SymbolRef or FunctionDecl*. 210ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu const void* Data; 211ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 212ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu // Cached function pointer type. 213ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu QualType LocationType; 214ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 215ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xupublic: 216ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 217ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu CodeTextRegion(const FunctionDecl* fd, QualType t, const MemRegion* sreg) 218ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu : TypedRegion(sreg, CodeTextRegionKind), 219ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu codekind(Declared), 220ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu Data(fd), 221ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu LocationType(t) {} 222ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 223ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu CodeTextRegion(SymbolRef sym, QualType t, const MemRegion* sreg) 224ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu : TypedRegion(sreg, CodeTextRegionKind), 225ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu codekind(Symbolic), 226ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu Data(sym), 227ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu LocationType(t) {} 228ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 229a82d8aa5b3b3d24998b4d98b9f45a43cc84cac6fZhongxing Xu QualType getValueType(ASTContext &C) const { 230ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu // Do not get the object type of a CodeTextRegion. 231ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu assert(0); 232ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu return QualType(); 233ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu } 234ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 235ff6978263439e21d795b0602fabcb38488ef8441Zhongxing Xu QualType getLocationType(ASTContext &C) const { 236ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu return LocationType; 237ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu } 238369f447eded97e6048ced02c0c2be3842f61fc1cZhongxing Xu 239369f447eded97e6048ced02c0c2be3842f61fc1cZhongxing Xu bool isDeclared() const { return codekind == Declared; } 240264e93799c891c03d60cf0b09a032b0a9935d3b5Zhongxing Xu bool isSymbolic() const { return codekind == Symbolic; } 241369f447eded97e6048ced02c0c2be3842f61fc1cZhongxing Xu 242369f447eded97e6048ced02c0c2be3842f61fc1cZhongxing Xu const FunctionDecl* getDecl() const { 243369f447eded97e6048ced02c0c2be3842f61fc1cZhongxing Xu assert(codekind == Declared); 244369f447eded97e6048ced02c0c2be3842f61fc1cZhongxing Xu return static_cast<const FunctionDecl*>(Data); 245369f447eded97e6048ced02c0c2be3842f61fc1cZhongxing Xu } 2468ec3d7dbff9d526fcdce4fbea683830192340c90Ted Kremenek 24772e032004b0d2c2c298e8e4f7027f23a21c0cc7dTed Kremenek SymbolRef getSymbol() const { 24872e032004b0d2c2c298e8e4f7027f23a21c0cc7dTed Kremenek assert(codekind == Symbolic); 24972e032004b0d2c2c298e8e4f7027f23a21c0cc7dTed Kremenek return const_cast<SymbolRef>(static_cast<const SymbolRef>(Data)); 25072e032004b0d2c2c298e8e4f7027f23a21c0cc7dTed Kremenek } 25172e032004b0d2c2c298e8e4f7027f23a21c0cc7dTed Kremenek 252a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek bool isBoundable() const { return false; } 25372e032004b0d2c2c298e8e4f7027f23a21c0cc7dTed Kremenek 25472e032004b0d2c2c298e8e4f7027f23a21c0cc7dTed Kremenek virtual void print(llvm::raw_ostream& os) const; 255ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 256ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu void Profile(llvm::FoldingSetNodeID& ID) const; 257ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 258ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu static void ProfileRegion(llvm::FoldingSetNodeID& ID, 2590dea5241bca707789d706ed1fda3a29a8fedc4c0Zhongxing Xu const void* data, QualType t, const MemRegion*); 260ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 261ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu static bool classof(const MemRegion* R) { 262ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu return R->getKind() == CodeTextRegionKind; 263ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu } 264ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu}; 265ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 266026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu/// SymbolicRegion - A special, "non-concrete" region. Unlike other region 267026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu/// clases, SymbolicRegion represents a region that serves as an alias for 268026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu/// either a real region, a NULL pointer, etc. It essentially is used to 269026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu/// map the concept of symbolic values into the domain of regions. Symbolic 270026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu/// regions do not need to be typed. 271e8e86482da4c1872673bbb9c237649229d19793bTed Kremenekclass SymbolicRegion : public SubRegion { 272026c66395b88a09437319139a43b090093f7e1ddZhongxing Xuprotected: 273026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu const SymbolRef sym; 274026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu 275026c66395b88a09437319139a43b090093f7e1ddZhongxing Xupublic: 276e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek SymbolicRegion(const SymbolRef s, const MemRegion* sreg) 277e8e86482da4c1872673bbb9c237649229d19793bTed Kremenek : SubRegion(sreg, SymbolicRegionKind), sym(s) {} 278026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu 279026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu SymbolRef getSymbol() const { 280026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu return sym; 281026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu } 282026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu 283026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu void Profile(llvm::FoldingSetNodeID& ID) const; 284026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu 285250101353b711a409b075f1bc11070dddec7100bTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, 286250101353b711a409b075f1bc11070dddec7100bTed Kremenek SymbolRef sym, 287250101353b711a409b075f1bc11070dddec7100bTed Kremenek const MemRegion* superRegion); 288026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu 289026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu void print(llvm::raw_ostream& os) const; 290026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu 291026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu static bool classof(const MemRegion* R) { 292026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu return R->getKind() == SymbolicRegionKind; 293026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu } 294026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu}; 295026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu 296e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu/// StringRegion - Region associated with a StringLiteral. 297e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xuclass StringRegion : public TypedRegion { 298e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu friend class MemRegionManager; 299e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu const StringLiteral* Str; 300e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xuprotected: 301e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 302250101353b711a409b075f1bc11070dddec7100bTed Kremenek StringRegion(const StringLiteral* str, const MemRegion* sreg) 303e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu : TypedRegion(sreg, StringRegionKind), Str(str) {} 304e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 305e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu static void ProfileRegion(llvm::FoldingSetNodeID& ID, 306e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu const StringLiteral* Str, 307e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu const MemRegion* superRegion); 308e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 309e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xupublic: 3106613d08a19aa6ce9b6330487f3bfac841d4b8a4dZhongxing Xu 3116613d08a19aa6ce9b6330487f3bfac841d4b8a4dZhongxing Xu const StringLiteral* getStringLiteral() const { return Str; } 3126eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek 313a82d8aa5b3b3d24998b4d98b9f45a43cc84cac6fZhongxing Xu QualType getValueType(ASTContext& C) const { 314ff6978263439e21d795b0602fabcb38488ef8441Zhongxing Xu return Str->getType(); 315ff6978263439e21d795b0602fabcb38488ef8441Zhongxing Xu } 316e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 317e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu void Profile(llvm::FoldingSetNodeID& ID) const { 318e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu ProfileRegion(ID, Str, superRegion); 319e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu } 320e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 321cc128b32429494fe04ed36d7ba30c011cb4e173aZhongxing Xu void print(llvm::raw_ostream& os) const; 322cc128b32429494fe04ed36d7ba30c011cb4e173aZhongxing Xu 323e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu static bool classof(const MemRegion* R) { 324e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu return R->getKind() == StringRegionKind; 325e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu } 326e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu}; 327e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 3280312c0e09c9de480d78607972ac64a88f4e94a33Ted Kremenekclass TypedViewRegion : public TypedRegion { 329dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu friend class MemRegionManager; 330b2dea734527ae75281642a1c6ace28f9e00cab11Ted Kremenek QualType LValueType; 331dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu 332b2dea734527ae75281642a1c6ace28f9e00cab11Ted Kremenek TypedViewRegion(QualType lvalueType, const MemRegion* sreg) 333b2dea734527ae75281642a1c6ace28f9e00cab11Ted Kremenek : TypedRegion(sreg, TypedViewRegionKind), LValueType(lvalueType) {} 334dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu 335dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu static void ProfileRegion(llvm::FoldingSetNodeID& ID, QualType T, 336dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu const MemRegion* superRegion); 337dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu 338dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xupublic: 339dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu 340500d2ee83d407106d80920fb4325fa2e06fa61a5Ted Kremenek void print(llvm::raw_ostream& os) const; 341500d2ee83d407106d80920fb4325fa2e06fa61a5Ted Kremenek 342ff6978263439e21d795b0602fabcb38488ef8441Zhongxing Xu QualType getLocationType(ASTContext&) const { 343e6fbdf538bc50122876639e08a1401e2bc9555baTed Kremenek return LValueType; 344e6fbdf538bc50122876639e08a1401e2bc9555baTed Kremenek } 345e6fbdf538bc50122876639e08a1401e2bc9555baTed Kremenek 346a82d8aa5b3b3d24998b4d98b9f45a43cc84cac6fZhongxing Xu QualType getValueType(ASTContext&) const { 347b2dea734527ae75281642a1c6ace28f9e00cab11Ted Kremenek const PointerType* PTy = LValueType->getAsPointerType(); 3482e3f73b963b5831d6230f69e157b0964b11eff91Zhongxing Xu assert(PTy); 3492e3f73b963b5831d6230f69e157b0964b11eff91Zhongxing Xu return PTy->getPointeeType(); 350dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu } 351b2dea734527ae75281642a1c6ace28f9e00cab11Ted Kremenek 352a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek bool isBoundable() const { 353b2dea734527ae75281642a1c6ace28f9e00cab11Ted Kremenek return isa<PointerType>(LValueType); 354b2dea734527ae75281642a1c6ace28f9e00cab11Ted Kremenek } 355dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu 356dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu void Profile(llvm::FoldingSetNodeID& ID) const { 357b2dea734527ae75281642a1c6ace28f9e00cab11Ted Kremenek ProfileRegion(ID, LValueType, superRegion); 358dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu } 359dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu 360dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu static bool classof(const MemRegion* R) { 3610312c0e09c9de480d78607972ac64a88f4e94a33Ted Kremenek return R->getKind() == TypedViewRegionKind; 362dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu } 3631670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenek 3641670e403c48f3af4fceff3f6773a0e1cfc6c4eb3Ted Kremenek const MemRegion *removeViews() const; 365dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu}; 3666eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek 367178927517fa09ddbb04dc8ef725b5716c18aae21Zhongxing Xu 368329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek/// CompoundLiteralRegion - A memory region representing a compound literal. 369329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek/// Compound literals are essentially temporaries that are stack allocated 370329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek/// or in the global constant pool. 37177cfac623178d0c16e16e2f171d20b0fea8fde30Zhongxing Xuclass CompoundLiteralRegion : public TypedRegion { 372329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenekprivate: 373329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek friend class MemRegionManager; 374329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek const CompoundLiteralExpr* CL; 375329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek 376329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek CompoundLiteralRegion(const CompoundLiteralExpr* cl, const MemRegion* sReg) 37777cfac623178d0c16e16e2f171d20b0fea8fde30Zhongxing Xu : TypedRegion(sReg, CompoundLiteralRegionKind), CL(cl) {} 378329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek 379329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, 380329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek const CompoundLiteralExpr* CL, 381329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek const MemRegion* superRegion); 382329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenekpublic: 383a82d8aa5b3b3d24998b4d98b9f45a43cc84cac6fZhongxing Xu QualType getValueType(ASTContext& C) const { 38477cfac623178d0c16e16e2f171d20b0fea8fde30Zhongxing Xu return C.getCanonicalType(CL->getType()); 38577cfac623178d0c16e16e2f171d20b0fea8fde30Zhongxing Xu } 3866eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek 387329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek void Profile(llvm::FoldingSetNodeID& ID) const; 388329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek 389329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek void print(llvm::raw_ostream& os) const; 390329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek 39111a83dc7a9a5738cc0bc76180b508eae896eefa9Ted Kremenek const CompoundLiteralExpr* getLiteralExpr() const { return CL; } 39211a83dc7a9a5738cc0bc76180b508eae896eefa9Ted Kremenek 393329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek static bool classof(const MemRegion* R) { 394329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek return R->getKind() == CompoundLiteralRegionKind; 395329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek } 396329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek}; 397178927517fa09ddbb04dc8ef725b5716c18aae21Zhongxing Xu 3989e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass DeclRegion : public TypedRegion { 3999e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekprotected: 4009e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek const Decl* D; 4019e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 402993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek DeclRegion(const Decl* d, const MemRegion* sReg, Kind k) 4039e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek : TypedRegion(sReg, k), D(d) {} 4049e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 4059e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, const Decl* D, 4069e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek const MemRegion* superRegion, Kind k); 4079e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 408bfb6582ef46dfb33672d9621f879fc262339d704Zhongxing Xupublic: 409bfb6582ef46dfb33672d9621f879fc262339d704Zhongxing Xu const Decl* getDecl() const { return D; } 4109e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek void Profile(llvm::FoldingSetNodeID& ID) const; 4116eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek 412e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu static bool classof(const MemRegion* R) { 413e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu unsigned k = R->getKind(); 414e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu return k > BEG_DECL_REGIONS && k < END_DECL_REGIONS; 415e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu } 4169e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek}; 4179e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 4189e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass VarRegion : public DeclRegion { 4199e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek friend class MemRegionManager; 4209e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 421993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek VarRegion(const VarDecl* vd, const MemRegion* sReg) 4229e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek : DeclRegion(vd, sReg, VarRegionKind) {} 4239e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 424250101353b711a409b075f1bc11070dddec7100bTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, const VarDecl* VD, 4256304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek const MemRegion* superRegion) { 4269e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek DeclRegion::ProfileRegion(ID, VD, superRegion, VarRegionKind); 4279e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 4289e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 4299e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekpublic: 4306eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek const VarDecl* getDecl() const { return cast<VarDecl>(D); } 4319e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 432a82d8aa5b3b3d24998b4d98b9f45a43cc84cac6fZhongxing Xu QualType getValueType(ASTContext& C) const { 4336eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek // FIXME: We can cache this if needed. 4346eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek return C.getCanonicalType(getDecl()->getType()); 4356eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek } 4366eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek 4379e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek void print(llvm::raw_ostream& os) const; 4389e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 4399e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek static bool classof(const MemRegion* R) { 4409e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return R->getKind() == VarRegionKind; 4419e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 4429e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek}; 4439e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 4449e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass FieldRegion : public DeclRegion { 4459e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek friend class MemRegionManager; 4469e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 447993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek FieldRegion(const FieldDecl* fd, const MemRegion* sReg) 4489e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek : DeclRegion(fd, sReg, FieldRegionKind) {} 4499e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 4504bd1eefd48c70ebef185e524d0484c00f16000cfTed Kremenekpublic: 4514bd1eefd48c70ebef185e524d0484c00f16000cfTed Kremenek 4524bd1eefd48c70ebef185e524d0484c00f16000cfTed Kremenek void print(llvm::raw_ostream& os) const; 4534bd1eefd48c70ebef185e524d0484c00f16000cfTed Kremenek 4544bd1eefd48c70ebef185e524d0484c00f16000cfTed Kremenek const FieldDecl* getDecl() const { return cast<FieldDecl>(D); } 4556eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek 456a82d8aa5b3b3d24998b4d98b9f45a43cc84cac6fZhongxing Xu QualType getValueType(ASTContext& C) const { 4576eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek // FIXME: We can cache this if needed. 458e70559fd25bfd1970a82086c5f99cf9ef181b1aeZhongxing Xu return C.getCanonicalType(getDecl()->getType()); 4596eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek } 4604bd1eefd48c70ebef185e524d0484c00f16000cfTed Kremenek 4616304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, const FieldDecl* FD, 4626304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek const MemRegion* superRegion) { 4639e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek DeclRegion::ProfileRegion(ID, FD, superRegion, FieldRegionKind); 4649e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 4659e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 4669e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek static bool classof(const MemRegion* R) { 4679e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return R->getKind() == FieldRegionKind; 4689e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 4699e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek}; 4709e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 471a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenekclass ObjCObjectRegion : public DeclRegion { 472a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek 473a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek friend class MemRegionManager; 474a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek 475a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek ObjCObjectRegion(const ObjCInterfaceDecl* ivd, const MemRegion* sReg) 476a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek : DeclRegion(ivd, sReg, ObjCObjectRegionKind) {} 477a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek 4786304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, 4796304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek const ObjCInterfaceDecl* ivd, 480a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek const MemRegion* superRegion) { 481a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek DeclRegion::ProfileRegion(ID, ivd, superRegion, ObjCObjectRegionKind); 482a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek } 483a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek 484a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenekpublic: 485a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek const ObjCInterfaceDecl* getInterface() const { 486a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek return cast<ObjCInterfaceDecl>(D); 487a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek } 488a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek 489a82d8aa5b3b3d24998b4d98b9f45a43cc84cac6fZhongxing Xu QualType getValueType(ASTContext& C) const { 4903b3a45858c6b2a45114e91902c3bf3c4b7f5f302Daniel Dunbar return C.getObjCInterfaceType(getInterface()); 491a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek } 492a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek 493a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek static bool classof(const MemRegion* R) { 494a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek return R->getKind() == ObjCObjectRegionKind; 495a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek } 496a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek}; 497a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek 4989e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass ObjCIvarRegion : public DeclRegion { 4999e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 5009e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek friend class MemRegionManager; 5019e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 502993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek ObjCIvarRegion(const ObjCIvarDecl* ivd, const MemRegion* sReg) 5039e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek : DeclRegion(ivd, sReg, ObjCIvarRegionKind) {} 5049e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 5056304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, const ObjCIvarDecl* ivd, 5066304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek const MemRegion* superRegion) { 5079e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek DeclRegion::ProfileRegion(ID, ivd, superRegion, ObjCIvarRegionKind); 5089e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 5099e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 5109e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekpublic: 5119e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek const ObjCIvarDecl* getDecl() const { return cast<ObjCIvarDecl>(D); } 512a82d8aa5b3b3d24998b4d98b9f45a43cc84cac6fZhongxing Xu QualType getValueType(ASTContext&) const { return getDecl()->getType(); } 5139e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 5149e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek static bool classof(const MemRegion* R) { 5159e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return R->getKind() == ObjCIvarRegionKind; 5169e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 5179e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek}; 518511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 51927b57063d83b00474d7563fb5d608544e2364862Zhongxing Xuclass ElementRegion : public TypedRegion { 520511191ce8920160525611be2be754c32a0724c3eZhongxing Xu friend class MemRegionManager; 521511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 522f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek QualType ElementType; 523511191ce8920160525611be2be754c32a0724c3eZhongxing Xu SVal Index; 524511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 525f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek ElementRegion(QualType elementType, SVal Idx, const MemRegion* sReg) 526f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek : TypedRegion(sReg, ElementRegionKind), 527f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek ElementType(elementType), Index(Idx) { 5283d8173c1c68f451c7492f92023d829c626845925Chris Lattner assert((!isa<nonloc::ConcreteInt>(&Idx) || 5293d8173c1c68f451c7492f92023d829c626845925Chris Lattner cast<nonloc::ConcreteInt>(&Idx)->getValue().isSigned()) && 53043b28d07019bc78447ecbbb721526de4ffd83f20Chris Lattner "The index must be signed"); 5310395b5d4987fe5baa818015e9d294c128619e4ecZhongxing Xu } 532abb042f33ea8e6107a7dc8efc51d2ace329f9f48Ted Kremenek 533f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, QualType elementType, 534f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek SVal Idx, const MemRegion* superRegion); 535511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 536511191ce8920160525611be2be754c32a0724c3eZhongxing Xupublic: 537511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 5386e78e1b22f3b16bb2ef76950b9b75f060bdba7bfZhongxing Xu SVal getIndex() const { return Index; } 5396e78e1b22f3b16bb2ef76950b9b75f060bdba7bfZhongxing Xu 540a82d8aa5b3b3d24998b4d98b9f45a43cc84cac6fZhongxing Xu QualType getValueType(ASTContext&) const { 541f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek return ElementType; 542f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek } 543f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek 544f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek QualType getElementType() const { 545f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek return ElementType; 546abb042f33ea8e6107a7dc8efc51d2ace329f9f48Ted Kremenek } 547abb042f33ea8e6107a7dc8efc51d2ace329f9f48Ted Kremenek 548b21ff77c8126ea628b66d2ffb931fdaa7884f5d2Zhongxing Xu void print(llvm::raw_ostream& os) const; 549b21ff77c8126ea628b66d2ffb931fdaa7884f5d2Zhongxing Xu 550511191ce8920160525611be2be754c32a0724c3eZhongxing Xu void Profile(llvm::FoldingSetNodeID& ID) const; 551511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 552511191ce8920160525611be2be754c32a0724c3eZhongxing Xu static bool classof(const MemRegion* R) { 553511191ce8920160525611be2be754c32a0724c3eZhongxing Xu return R->getKind() == ElementRegionKind; 554511191ce8920160525611be2be754c32a0724c3eZhongxing Xu } 555511191ce8920160525611be2be754c32a0724c3eZhongxing Xu}; 556ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek 557ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenektemplate<typename RegionTy> 558ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenekconst RegionTy* MemRegion::getAs() const { 559ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek const MemRegion *R = this; 560ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek 561ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek do { 562ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek if (const RegionTy* RT = dyn_cast<RegionTy>(R)) 563ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek return RT; 564ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek 565ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek if (const TypedViewRegion *TR = dyn_cast<TypedViewRegion>(R)) { 566ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek R = TR->getSuperRegion(); 567ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek continue; 568ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek } 569ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek 570ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek break; 571ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek } 572ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek while (R); 573ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek 574ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek return 0; 575ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek} 576511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 5779e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek//===----------------------------------------------------------------------===// 5789e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek// MemRegionManager - Factory object for creating regions. 5799e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek//===----------------------------------------------------------------------===// 5809e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 5819e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass MemRegionManager { 582a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek ASTContext &C; 5839e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek llvm::BumpPtrAllocator& A; 5849e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek llvm::FoldingSet<MemRegion> Regions; 5859e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 5869e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek MemSpaceRegion* globals; 5879e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek MemSpaceRegion* stack; 5889e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek MemSpaceRegion* heap; 589178927517fa09ddbb04dc8ef725b5716c18aae21Zhongxing Xu MemSpaceRegion* unknown; 590ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu MemSpaceRegion* code; 591dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu 5929e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekpublic: 593a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek MemRegionManager(ASTContext &c, llvm::BumpPtrAllocator& a) 594a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek : C(c), A(a), globals(0), stack(0), heap(0), unknown(0), code(0) {} 5959e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 5969e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek ~MemRegionManager() {} 5979e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 598a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek ASTContext &getContext() { return C; } 599a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek 6009e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// getStackRegion - Retrieve the memory region associated with the 6019e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// current stack frame. 6029e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek MemSpaceRegion* getStackRegion(); 6039e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 6049e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// getGlobalsRegion - Retrieve the memory region associated with 6059e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// all global variables. 6069e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek MemSpaceRegion* getGlobalsRegion(); 6079e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 6089e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// getHeapRegion - Retrieve the memory region associated with the 6099e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// generic "heap". 6109e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek MemSpaceRegion* getHeapRegion(); 611178927517fa09ddbb04dc8ef725b5716c18aae21Zhongxing Xu 612178927517fa09ddbb04dc8ef725b5716c18aae21Zhongxing Xu /// getUnknownRegion - Retrieve the memory region associated with unknown 613178927517fa09ddbb04dc8ef725b5716c18aae21Zhongxing Xu /// memory space. 614178927517fa09ddbb04dc8ef725b5716c18aae21Zhongxing Xu MemSpaceRegion* getUnknownRegion(); 615c540b261ac553b91840146eaa3fee3f11b1013a7Zhongxing Xu 616ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu MemSpaceRegion* getCodeRegion(); 617ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 6187090ae1a984eb446a5fb4da7b1f2573830653799Ted Kremenek /// getAllocaRegion - Retrieve a region associated with a call to alloca(). 6197090ae1a984eb446a5fb4da7b1f2573830653799Ted Kremenek AllocaRegion* getAllocaRegion(const Expr* Ex, unsigned Cnt); 6207090ae1a984eb446a5fb4da7b1f2573830653799Ted Kremenek 621329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek /// getCompoundLiteralRegion - Retrieve the region associated with a 622329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek /// given CompoundLiteral. 623329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek CompoundLiteralRegion* 624329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek getCompoundLiteralRegion(const CompoundLiteralExpr* CL); 625329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek 626993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek /// getSymbolicRegion - Retrieve or create a "symbolic" memory region. 627e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek SymbolicRegion* getSymbolicRegion(SymbolRef sym); 628e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 629e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu StringRegion* getStringRegion(const StringLiteral* Str); 630e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 6319e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// getVarRegion - Retrieve or create the memory region associated with 6329a1f03afc569abbdcc182379c99d1fe1ece67c9dTed Kremenek /// a specified VarDecl. 6339a1f03afc569abbdcc182379c99d1fe1ece67c9dTed Kremenek VarRegion* getVarRegion(const VarDecl* vd); 634329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek 635f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek /// getElementRegion - Retrieve the memory region associated with the 636f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek /// associated element type, index, and super region. 637f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek ElementRegion* getElementRegion(QualType elementType, SVal Idx, 638143b2fc6fd3945c250b333383749010c2c8e3a4cZhongxing Xu const MemRegion* superRegion,ASTContext &Ctx); 639511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 6409e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// getFieldRegion - Retrieve or create the memory region associated with 6419e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// a specified FieldDecl. 'superRegion' corresponds to the containing 6429e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// memory region (which typically represents the memory representing 6439e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// a structure or class). 644abb042f33ea8e6107a7dc8efc51d2ace329f9f48Ted Kremenek FieldRegion* getFieldRegion(const FieldDecl* fd, 645abb042f33ea8e6107a7dc8efc51d2ace329f9f48Ted Kremenek const MemRegion* superRegion); 6469e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 647a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek /// getObjCObjectRegion - Retrieve or create the memory region associated with 648a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek /// the instance of a specified Objective-C class. 649a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek ObjCObjectRegion* getObjCObjectRegion(const ObjCInterfaceDecl* ID, 650a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek const MemRegion* superRegion); 651a7f1b9e8804012ed8df25d93f5a06cb26c9bbd2bTed Kremenek 6529e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// getObjCIvarRegion - Retrieve or create the memory region associated with 6539e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// a specified Objective-c instance variable. 'superRegion' corresponds 6549e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// to the containing region (which typically represents the Objective-C 6559e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// object). 6569e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek ObjCIvarRegion* getObjCIvarRegion(const ObjCIvarDecl* ivd, 657993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek const MemRegion* superRegion); 658178927517fa09ddbb04dc8ef725b5716c18aae21Zhongxing Xu 659b2dea734527ae75281642a1c6ace28f9e00cab11Ted Kremenek TypedViewRegion* getTypedViewRegion(QualType LValueType, 660b2dea734527ae75281642a1c6ace28f9e00cab11Ted Kremenek const MemRegion* superRegion); 661dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu 662ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu CodeTextRegion* getCodeTextRegion(SymbolRef sym, QualType t); 663ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu CodeTextRegion* getCodeTextRegion(const FunctionDecl* fd, QualType t); 664250101353b711a409b075f1bc11070dddec7100bTed Kremenek 665250101353b711a409b075f1bc11070dddec7100bTed Kremenek template <typename RegionTy, typename A1> 666250101353b711a409b075f1bc11070dddec7100bTed Kremenek RegionTy* getRegion(const A1 a1); 6676304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek 6686304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek template <typename RegionTy, typename A1> 6696304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek RegionTy* getRegion(const A1 a1, const MemRegion* superRegion); 6707ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek 6717ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek template <typename RegionTy, typename A1, typename A2> 6727ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek RegionTy* getRegion(const A1 a1, const A2 a2); 673dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu 674dd198f04897df87c52fef66398035cbf67fdc33dZhongxing Xu bool isGlobalsRegion(const MemRegion* R) { 675dd198f04897df87c52fef66398035cbf67fdc33dZhongxing Xu assert(R); 676dd198f04897df87c52fef66398035cbf67fdc33dZhongxing Xu return R == globals; 677dd198f04897df87c52fef66398035cbf67fdc33dZhongxing Xu } 678dd198f04897df87c52fef66398035cbf67fdc33dZhongxing Xu 6799e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekprivate: 6809e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek MemSpaceRegion* LazyAllocate(MemSpaceRegion*& region); 681ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek}; 682250101353b711a409b075f1bc11070dddec7100bTed Kremenek 683250101353b711a409b075f1bc11070dddec7100bTed Kremenek//===----------------------------------------------------------------------===// 684a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek// Out-of-line member definitions. 685250101353b711a409b075f1bc11070dddec7100bTed Kremenek//===----------------------------------------------------------------------===// 686250101353b711a409b075f1bc11070dddec7100bTed Kremenek 687a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenekinline ASTContext& MemRegion::getContext() const { 688a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek return getMemRegionManager()->getContext(); 689a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek} 690a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek 691250101353b711a409b075f1bc11070dddec7100bTed Kremenektemplate<typename RegionTy> struct MemRegionManagerTrait; 692250101353b711a409b075f1bc11070dddec7100bTed Kremenek 693250101353b711a409b075f1bc11070dddec7100bTed Kremenektemplate <typename RegionTy, typename A1> 694250101353b711a409b075f1bc11070dddec7100bTed KremenekRegionTy* MemRegionManager::getRegion(const A1 a1) { 695250101353b711a409b075f1bc11070dddec7100bTed Kremenek 696250101353b711a409b075f1bc11070dddec7100bTed Kremenek const typename MemRegionManagerTrait<RegionTy>::SuperRegionTy *superRegion = 697250101353b711a409b075f1bc11070dddec7100bTed Kremenek MemRegionManagerTrait<RegionTy>::getSuperRegion(*this, a1); 698250101353b711a409b075f1bc11070dddec7100bTed Kremenek 699250101353b711a409b075f1bc11070dddec7100bTed Kremenek llvm::FoldingSetNodeID ID; 700250101353b711a409b075f1bc11070dddec7100bTed Kremenek RegionTy::ProfileRegion(ID, a1, superRegion); 701250101353b711a409b075f1bc11070dddec7100bTed Kremenek void* InsertPos; 702250101353b711a409b075f1bc11070dddec7100bTed Kremenek RegionTy* R = cast_or_null<RegionTy>(Regions.FindNodeOrInsertPos(ID, 703250101353b711a409b075f1bc11070dddec7100bTed Kremenek InsertPos)); 704250101353b711a409b075f1bc11070dddec7100bTed Kremenek 705250101353b711a409b075f1bc11070dddec7100bTed Kremenek if (!R) { 7066304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek R = (RegionTy*) A.Allocate<RegionTy>(); 7076304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek new (R) RegionTy(a1, superRegion); 7086304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek Regions.InsertNode(R, InsertPos); 7096304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek } 7106304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek 7116304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek return R; 7126304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek} 7136304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek 7146304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenektemplate <typename RegionTy, typename A1> 7156304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed KremenekRegionTy* MemRegionManager::getRegion(const A1 a1, const MemRegion *superRegion) 7166304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek{ 7176304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek llvm::FoldingSetNodeID ID; 7186304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek RegionTy::ProfileRegion(ID, a1, superRegion); 7196304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek void* InsertPos; 7206304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek RegionTy* R = cast_or_null<RegionTy>(Regions.FindNodeOrInsertPos(ID, 7216304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek InsertPos)); 7226304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek 7236304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek if (!R) { 724250101353b711a409b075f1bc11070dddec7100bTed Kremenek R = (RegionTy*) A.Allocate<RegionTy>(); 725250101353b711a409b075f1bc11070dddec7100bTed Kremenek new (R) RegionTy(a1, superRegion); 726250101353b711a409b075f1bc11070dddec7100bTed Kremenek Regions.InsertNode(R, InsertPos); 727250101353b711a409b075f1bc11070dddec7100bTed Kremenek } 728250101353b711a409b075f1bc11070dddec7100bTed Kremenek 729250101353b711a409b075f1bc11070dddec7100bTed Kremenek return R; 730250101353b711a409b075f1bc11070dddec7100bTed Kremenek} 731250101353b711a409b075f1bc11070dddec7100bTed Kremenek 7327ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenektemplate <typename RegionTy, typename A1, typename A2> 7337ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed KremenekRegionTy* MemRegionManager::getRegion(const A1 a1, const A2 a2) { 7347ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek 7357ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek const typename MemRegionManagerTrait<RegionTy>::SuperRegionTy *superRegion = 7367ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek MemRegionManagerTrait<RegionTy>::getSuperRegion(*this, a1, a2); 7377ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek 7387ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek llvm::FoldingSetNodeID ID; 7397ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek RegionTy::ProfileRegion(ID, a1, a2, superRegion); 7407ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek void* InsertPos; 7417ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek RegionTy* R = cast_or_null<RegionTy>(Regions.FindNodeOrInsertPos(ID, 7427ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek InsertPos)); 7437ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek 7447ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek if (!R) { 7457ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek R = (RegionTy*) A.Allocate<RegionTy>(); 7467ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek new (R) RegionTy(a1, a2, superRegion); 7477ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek Regions.InsertNode(R, InsertPos); 7487ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek } 7497ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek 7507ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek return R; 7517ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek} 7527ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek 753250101353b711a409b075f1bc11070dddec7100bTed Kremenek//===----------------------------------------------------------------------===// 754250101353b711a409b075f1bc11070dddec7100bTed Kremenek// Traits for constructing regions. 755250101353b711a409b075f1bc11070dddec7100bTed Kremenek//===----------------------------------------------------------------------===// 756250101353b711a409b075f1bc11070dddec7100bTed Kremenek 7577ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenektemplate <> struct MemRegionManagerTrait<AllocaRegion> { 7587ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek typedef MemRegion SuperRegionTy; 7597ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek static const SuperRegionTy* getSuperRegion(MemRegionManager& MRMgr, 7607ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek const Expr *, unsigned) { 7617ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek return MRMgr.getStackRegion(); 7627ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek } 7637ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek}; 7647ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek 765250101353b711a409b075f1bc11070dddec7100bTed Kremenektemplate <> struct MemRegionManagerTrait<CompoundLiteralRegion> { 766250101353b711a409b075f1bc11070dddec7100bTed Kremenek typedef MemRegion SuperRegionTy; 767250101353b711a409b075f1bc11070dddec7100bTed Kremenek static const SuperRegionTy* getSuperRegion(MemRegionManager& MRMgr, 768250101353b711a409b075f1bc11070dddec7100bTed Kremenek const CompoundLiteralExpr *CL) { 769250101353b711a409b075f1bc11070dddec7100bTed Kremenek 770250101353b711a409b075f1bc11070dddec7100bTed Kremenek return CL->isFileScope() ? MRMgr.getGlobalsRegion() 771250101353b711a409b075f1bc11070dddec7100bTed Kremenek : MRMgr.getStackRegion(); 772250101353b711a409b075f1bc11070dddec7100bTed Kremenek } 773250101353b711a409b075f1bc11070dddec7100bTed Kremenek}; 774250101353b711a409b075f1bc11070dddec7100bTed Kremenek 775250101353b711a409b075f1bc11070dddec7100bTed Kremenektemplate <> struct MemRegionManagerTrait<StringRegion> { 776250101353b711a409b075f1bc11070dddec7100bTed Kremenek typedef MemSpaceRegion SuperRegionTy; 777250101353b711a409b075f1bc11070dddec7100bTed Kremenek static const SuperRegionTy* getSuperRegion(MemRegionManager& MRMgr, 778250101353b711a409b075f1bc11070dddec7100bTed Kremenek const StringLiteral*) { 779250101353b711a409b075f1bc11070dddec7100bTed Kremenek return MRMgr.getGlobalsRegion(); 780250101353b711a409b075f1bc11070dddec7100bTed Kremenek } 781250101353b711a409b075f1bc11070dddec7100bTed Kremenek}; 782250101353b711a409b075f1bc11070dddec7100bTed Kremenek 783250101353b711a409b075f1bc11070dddec7100bTed Kremenektemplate <> struct MemRegionManagerTrait<VarRegion> { 784250101353b711a409b075f1bc11070dddec7100bTed Kremenek typedef MemRegion SuperRegionTy; 785250101353b711a409b075f1bc11070dddec7100bTed Kremenek static const SuperRegionTy* getSuperRegion(MemRegionManager& MRMgr, 786250101353b711a409b075f1bc11070dddec7100bTed Kremenek const VarDecl *d) { 787250101353b711a409b075f1bc11070dddec7100bTed Kremenek return d->hasLocalStorage() ? MRMgr.getStackRegion() 788250101353b711a409b075f1bc11070dddec7100bTed Kremenek : MRMgr.getGlobalsRegion(); 789250101353b711a409b075f1bc11070dddec7100bTed Kremenek } 790250101353b711a409b075f1bc11070dddec7100bTed Kremenek}; 791250101353b711a409b075f1bc11070dddec7100bTed Kremenek 792250101353b711a409b075f1bc11070dddec7100bTed Kremenektemplate <> struct MemRegionManagerTrait<SymbolicRegion> { 793250101353b711a409b075f1bc11070dddec7100bTed Kremenek typedef MemRegion SuperRegionTy; 794250101353b711a409b075f1bc11070dddec7100bTed Kremenek static const SuperRegionTy* getSuperRegion(MemRegionManager& MRMgr, 795250101353b711a409b075f1bc11070dddec7100bTed Kremenek SymbolRef) { 796250101353b711a409b075f1bc11070dddec7100bTed Kremenek return MRMgr.getUnknownRegion(); 797250101353b711a409b075f1bc11070dddec7100bTed Kremenek } 798250101353b711a409b075f1bc11070dddec7100bTed Kremenek}; 7990dea5241bca707789d706ed1fda3a29a8fedc4c0Zhongxing Xu 8000dea5241bca707789d706ed1fda3a29a8fedc4c0Zhongxing Xutemplate<> struct MemRegionManagerTrait<CodeTextRegion> { 8010dea5241bca707789d706ed1fda3a29a8fedc4c0Zhongxing Xu typedef MemSpaceRegion SuperRegionTy; 8020dea5241bca707789d706ed1fda3a29a8fedc4c0Zhongxing Xu static const SuperRegionTy* getSuperRegion(MemRegionManager& MRMgr, 8030dea5241bca707789d706ed1fda3a29a8fedc4c0Zhongxing Xu const FunctionDecl*, QualType) { 8040dea5241bca707789d706ed1fda3a29a8fedc4c0Zhongxing Xu return MRMgr.getCodeRegion(); 8050dea5241bca707789d706ed1fda3a29a8fedc4c0Zhongxing Xu } 8060dea5241bca707789d706ed1fda3a29a8fedc4c0Zhongxing Xu static const SuperRegionTy* getSuperRegion(MemRegionManager& MRMgr, 8070dea5241bca707789d706ed1fda3a29a8fedc4c0Zhongxing Xu SymbolRef, QualType) { 8080dea5241bca707789d706ed1fda3a29a8fedc4c0Zhongxing Xu return MRMgr.getCodeRegion(); 8090dea5241bca707789d706ed1fda3a29a8fedc4c0Zhongxing Xu } 8100dea5241bca707789d706ed1fda3a29a8fedc4c0Zhongxing Xu}; 811250101353b711a409b075f1bc11070dddec7100bTed Kremenek 812be91224894e1501133e224934285ba6440bf5b59Ted Kremenek} // end clang namespace 8139e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 814250101353b711a409b075f1bc11070dddec7100bTed Kremenek//===----------------------------------------------------------------------===// 815250101353b711a409b075f1bc11070dddec7100bTed Kremenek// Pretty-printing regions. 816250101353b711a409b075f1bc11070dddec7100bTed Kremenek//===----------------------------------------------------------------------===// 817250101353b711a409b075f1bc11070dddec7100bTed Kremenek 818be91224894e1501133e224934285ba6440bf5b59Ted Kremeneknamespace llvm { 819be91224894e1501133e224934285ba6440bf5b59Ted Kremenekstatic inline raw_ostream& operator<<(raw_ostream& O, 820be91224894e1501133e224934285ba6440bf5b59Ted Kremenek const clang::MemRegion* R) { 821be91224894e1501133e224934285ba6440bf5b59Ted Kremenek R->print(O); 822be91224894e1501133e224934285ba6440bf5b59Ted Kremenek return O; 823be91224894e1501133e224934285ba6440bf5b59Ted Kremenek} 824be91224894e1501133e224934285ba6440bf5b59Ted Kremenek} // end llvm namespace 8259e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 8269e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek#endif 827