MemRegion.h revision 4c62b557e269a27515dfca1f754ae936c8fdb824
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 165a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis#ifndef LLVM_CLANG_GR_MEMREGION_H 175a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis#define LLVM_CLANG_GR_MEMREGION_H 189e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 199ff2b13aee0f89d23ef4820218f9b88bb5e5c1c1Ken Dyck#include "clang/AST/CharUnits.h" 20993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek#include "clang/AST/Decl.h" 214c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek#include "clang/AST/ExprObjC.h" 22d47d3b0cfeb7e8564ff77f48130fe63282b6d127Chris Lattner#include "clang/Basic/LLVM.h" 239b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/SVals.h" 249c1845dbed9817520f5a7db8bd80a560c6c6ae6bArgyrios Kyrtzidis#include "llvm/Support/ErrorHandling.h" 259e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek#include "llvm/ADT/FoldingSet.h" 269e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek#include <string> 279e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 285e2d2c2ee3cf410643e0f9a5701708e51409d973Benjamin Kramernamespace llvm { 295e2d2c2ee3cf410643e0f9a5701708e51409d973Benjamin Kramerclass BumpPtrAllocator; 305e2d2c2ee3cf410643e0f9a5701708e51409d973Benjamin Kramer} 319e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 329e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremeneknamespace clang { 331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34d17da2b99f323fa91b01e1dd119cc32e0ee8197dTed Kremenekclass LocationContext; 3567d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekclass StackFrameContext; 365a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 379ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremeneknamespace ento { 385a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 395a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidisclass MemRegionManager; 405a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidisclass MemSpaceRegion; 41c8413fd03f73084a5c93028f8b4db619fc388087Ted Kremenekclass SValBuilder; 424240096011a187807058f887eb81df750ffa17feTed Kremenekclass VarRegion; 43dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenekclass CodeTextRegion; 441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 45e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xu/// Represent a region's offset within the top level base region. 46e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xuclass RegionOffset { 47e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xu /// The base region. 48e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xu const MemRegion *R; 49e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xu 50e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xu /// The bit offset within the base region. It shouldn't be negative. 51e3273e78da4716f9c999ae207f6898f376a6e1a4Zhongxing Xu int64_t Offset; 52e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xu 53e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xupublic: 54e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xu RegionOffset(const MemRegion *r) : R(r), Offset(0) {} 55e3273e78da4716f9c999ae207f6898f376a6e1a4Zhongxing Xu RegionOffset(const MemRegion *r, int64_t off) : R(r), Offset(off) {} 56e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xu 57e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xu const MemRegion *getRegion() const { return R; } 58e3273e78da4716f9c999ae207f6898f376a6e1a4Zhongxing Xu int64_t getOffset() const { return Offset; } 59e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xu}; 60e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xu 6119e1f0ba5cec738ce6cebe3fe0e1edc782206494Ted Kremenek//===----------------------------------------------------------------------===// 6219e1f0ba5cec738ce6cebe3fe0e1edc782206494Ted Kremenek// Base region classes. 6319e1f0ba5cec738ce6cebe3fe0e1edc782206494Ted Kremenek//===----------------------------------------------------------------------===// 641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 659e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek/// MemRegion - The root abstract class for all memory regions. 669e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass MemRegion : public llvm::FoldingSetNode { 674240096011a187807058f887eb81df750ffa17feTed Kremenek friend class MemRegionManager; 689e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekpublic: 6967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek enum Kind { 7067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek // Memory spaces. 71dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek GenericMemSpaceRegionKind, 7267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek StackLocalsSpaceRegionKind, 7367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek StackArgumentsSpaceRegionKind, 7467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek HeapSpaceRegionKind, 752b87ae45e129b941d0a4d221c9d4842385a119bdTed Kremenek UnknownSpaceRegionKind, 76dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek StaticGlobalSpaceRegionKind, 77eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks GlobalInternalSpaceRegionKind, 78eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks GlobalSystemSpaceRegionKind, 79eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks GlobalImmutableSpaceRegionKind, 80eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks BEG_NON_STATIC_GLOBAL_MEMSPACES = GlobalInternalSpaceRegionKind, 81eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks END_NON_STATIC_GLOBAL_MEMSPACES = GlobalImmutableSpaceRegionKind, 82eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks BEG_GLOBAL_MEMSPACES = StaticGlobalSpaceRegionKind, 83eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks END_GLOBAL_MEMSPACES = GlobalImmutableSpaceRegionKind, 84dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek BEG_MEMSPACES = GenericMemSpaceRegionKind, 85eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks END_MEMSPACES = GlobalImmutableSpaceRegionKind, 8667d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek // Untyped regions. 8767d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek SymbolicRegionKind, 8867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek AllocaRegionKind, 899697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek BlockDataRegionKind, 9067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek // Typed regions. 9167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek BEG_TYPED_REGIONS, 9267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek FunctionTextRegionKind = BEG_TYPED_REGIONS, 9367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek BlockTextRegionKind, 949697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek BEG_TYPED_VALUE_REGIONS, 959697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek CompoundLiteralRegionKind = BEG_TYPED_VALUE_REGIONS, 96de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek CXXThisRegionKind, 9767d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek StringRegionKind, 984c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek ObjCStringRegionKind, 9967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek ElementRegionKind, 10067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek // Decl Regions. 10167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek BEG_DECL_REGIONS, 10267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek VarRegionKind = BEG_DECL_REGIONS, 10367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek FieldRegionKind, 10467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek ObjCIvarRegionKind, 1054fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu END_DECL_REGIONS = ObjCIvarRegionKind, 10602fe28c8a6da29d4ad88d0900c133dcf22d24a75Zhongxing Xu CXXTempObjectRegionKind, 1074fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu CXXBaseObjectRegionKind, 108096aef9597b263b4cd6a0feaacf9e7214fa9c75aJordy Rose END_TYPED_VALUE_REGIONS = CXXBaseObjectRegionKind, 109096aef9597b263b4cd6a0feaacf9e7214fa9c75aJordy Rose END_TYPED_REGIONS = CXXBaseObjectRegionKind 11067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek }; 11167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 1129e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekprivate: 1139e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek const Kind kind; 1141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1159e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekprotected: 1169e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek MemRegion(Kind k) : kind(k) {} 1179e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek virtual ~MemRegion(); 1189e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 1199e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekpublic: 120a6275a534da701f37d19a068e6361e5f10f983a1Ted Kremenek ASTContext &getContext() const; 1211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1229e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek virtual void Profile(llvm::FoldingSetNodeID& ID) const = 0; 123a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek 124a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek virtual MemRegionManager* getMemRegionManager() const = 0; 125a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek 1269e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek std::string getString() const; 1271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 128bb7c96f290453104ec35ca17111a5165f68a4697Ted Kremenek const MemSpaceRegion *getMemorySpace() const; 1291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 130adca27102ff733c7d42fcbbc2c7e134a7fc026f9Zhongxing Xu const MemRegion *getBaseRegion() const; 131adca27102ff733c7d42fcbbc2c7e134a7fc026f9Zhongxing Xu 132479529e679957fbb92b56e116e3c86734429331eZhongxing Xu const MemRegion *StripCasts() const; 1331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1341508636e99faddf569a57fce82c0fb3aa2124396Ted Kremenek bool hasGlobalsOrParametersStorage() const; 1351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 136de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek bool hasStackStorage() const; 137de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek 138de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek bool hasStackNonParametersStorage() const; 139de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek 140de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek bool hasStackParametersStorage() const; 141b21ff77c8126ea628b66d2ffb931fdaa7884f5d2Zhongxing Xu 142e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xu /// Compute the offset within the top level memory object. 143e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xu RegionOffset getAsOffset() const; 144e888233f6b115d3b0dd73bcb5f35e93794408542Zhongxing Xu 1459c378f705405d37f49795d5e915989de774fe11fTed Kremenek virtual void dumpToStream(raw_ostream &os) const; 1467f39d29cb69e7488f994870800d548008e50e1cbTed Kremenek 1478800ad4eaa1621f6d23c8264971063b9f8da6a2eTed Kremenek void dump() const; 1481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Kind getKind() const { return kind; } 1501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 151ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek template<typename RegionTy> const RegionTy* getAs() const; 1521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 153f0f0605c87739c906861f73d4287798a4969b1e0Zhongxing Xu virtual bool isBoundable() const { return false; } 154b21ff77c8126ea628b66d2ffb931fdaa7884f5d2Zhongxing Xu 1559e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek static bool classof(const MemRegion*) { return true; } 1569e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek}; 1571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 158eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// MemSpaceRegion - A memory region that represents a "memory space"; 1599e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek/// for example, the set of global variables, the stack frame, etc. 1609e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass MemSpaceRegion : public MemRegion { 161a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenekprotected: 16267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek friend class MemRegionManager; 16367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 164a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek MemRegionManager *Mgr; 165a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek 16667d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek MemSpaceRegion(MemRegionManager *mgr, Kind k = GenericMemSpaceRegionKind) 16767d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek : MemRegion(k), Mgr(mgr) { 16867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek assert(classof(this)); 16967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek } 17067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 17167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek MemRegionManager* getMemRegionManager() const { return Mgr; } 1721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekpublic: 17467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek bool isBoundable() const { return false; } 17567d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 17667d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek void Profile(llvm::FoldingSetNodeID &ID) const; 17767d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 17867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek static bool classof(const MemRegion *R) { 17967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek Kind k = R->getKind(); 18067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek return k >= BEG_MEMSPACES && k <= END_MEMSPACES; 181a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek } 18267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek}; 18367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 18467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekclass GlobalsSpaceRegion : public MemSpaceRegion { 18599ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikie virtual void anchor(); 186dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenekprotected: 187dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek GlobalsSpaceRegion(MemRegionManager *mgr, Kind k) 188dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek : MemSpaceRegion(mgr, k) {} 189dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenekpublic: 190dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek static bool classof(const MemRegion *R) { 191dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek Kind k = R->getKind(); 192dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek return k >= BEG_GLOBAL_MEMSPACES && k <= END_GLOBAL_MEMSPACES; 193dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek } 194dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek}; 195eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 196eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// \class The region of the static variables within the current CodeTextRegion 197eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// scope. 198eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// Currently, only the static locals are placed there, so we know that these 199eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// variables do not get invalidated by calls to other functions. 200dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenekclass StaticGlobalSpaceRegion : public GlobalsSpaceRegion { 20167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek friend class MemRegionManager; 202a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek 203dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek const CodeTextRegion *CR; 204dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek 205dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek StaticGlobalSpaceRegion(MemRegionManager *mgr, const CodeTextRegion *cr) 206dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek : GlobalsSpaceRegion(mgr, StaticGlobalSpaceRegionKind), CR(cr) {} 207dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek 208dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenekpublic: 209dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek void Profile(llvm::FoldingSetNodeID &ID) const; 210dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek 2119c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &os) const; 212fa87d812d7c78d7f0cd1c5636e21e07c23c85341Ted Kremenek 213dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek const CodeTextRegion *getCodeRegion() const { return CR; } 214dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek 215dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek static bool classof(const MemRegion *R) { 216dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek return R->getKind() == StaticGlobalSpaceRegionKind; 217dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek } 218dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek}; 219eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 220eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// \class The region for all the non-static global variables. 221eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// 222eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// This class is further split into subclasses for efficient implementation of 223eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// invalidating a set of related global values as is done in 224eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// RegionStoreManager::invalidateRegions (instead of finding all the dependent 225eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// globals, we invalidate the whole parent region). 226dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenekclass NonStaticGlobalSpaceRegion : public GlobalsSpaceRegion { 227dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek friend class MemRegionManager; 228dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek 229eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaksprotected: 230eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks NonStaticGlobalSpaceRegion(MemRegionManager *mgr, Kind k) 231eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks : GlobalsSpaceRegion(mgr, k) {} 232dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek 2339e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekpublic: 234fa87d812d7c78d7f0cd1c5636e21e07c23c85341Ted Kremenek 2359c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &os) const; 236fa87d812d7c78d7f0cd1c5636e21e07c23c85341Ted Kremenek 23767d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek static bool classof(const MemRegion *R) { 238eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks Kind k = R->getKind(); 239eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks return k >= BEG_NON_STATIC_GLOBAL_MEMSPACES && 240eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks k <= END_NON_STATIC_GLOBAL_MEMSPACES; 24167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek } 24267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek}; 243eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 244eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// \class The region containing globals which are defined in system/external 245eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// headers and are considered modifiable by system calls (ex: errno). 246eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaksclass GlobalSystemSpaceRegion : public NonStaticGlobalSpaceRegion { 247eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks friend class MemRegionManager; 248eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 249eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks GlobalSystemSpaceRegion(MemRegionManager *mgr) 250eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks : NonStaticGlobalSpaceRegion(mgr, GlobalSystemSpaceRegionKind) {} 251eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 252eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zakspublic: 253eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 254eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks void dumpToStream(raw_ostream &os) const; 255eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 256eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks static bool classof(const MemRegion *R) { 257eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks return R->getKind() == GlobalSystemSpaceRegionKind; 258eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks } 259eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks}; 260eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 261eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// \class The region containing globals which are considered not to be modified 262eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// or point to data which could be modified as a result of a function call 263eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// (system or internal). Ex: Const global scalars would be modeled as part of 264eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// this region. This region also includes most system globals since they have 265eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// low chance of being modified. 266eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaksclass GlobalImmutableSpaceRegion : public NonStaticGlobalSpaceRegion { 267eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks friend class MemRegionManager; 268eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 269eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks GlobalImmutableSpaceRegion(MemRegionManager *mgr) 270eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks : NonStaticGlobalSpaceRegion(mgr, GlobalImmutableSpaceRegionKind) {} 271eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 272eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zakspublic: 273eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 274eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks void dumpToStream(raw_ostream &os) const; 275eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 276eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks static bool classof(const MemRegion *R) { 277eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks return R->getKind() == GlobalImmutableSpaceRegionKind; 278eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks } 279eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks}; 280eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 281eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// \class The region containing globals which can be modified by calls to 282eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// "internally" defined functions - (for now just) functions other then system 283eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks/// calls. 284eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaksclass GlobalInternalSpaceRegion : public NonStaticGlobalSpaceRegion { 285eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks friend class MemRegionManager; 286eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 287eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks GlobalInternalSpaceRegion(MemRegionManager *mgr) 288eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks : NonStaticGlobalSpaceRegion(mgr, GlobalInternalSpaceRegionKind) {} 289eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 290eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zakspublic: 291eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 292eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks void dumpToStream(raw_ostream &os) const; 293eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 294eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks static bool classof(const MemRegion *R) { 295eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks return R->getKind() == GlobalInternalSpaceRegionKind; 296eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks } 297eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks}; 298eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 29967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekclass HeapSpaceRegion : public MemSpaceRegion { 30099ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikie virtual void anchor(); 30167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek friend class MemRegionManager; 30267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 30367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek HeapSpaceRegion(MemRegionManager *mgr) 30467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek : MemSpaceRegion(mgr, HeapSpaceRegionKind) {} 30567d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekpublic: 30667d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek static bool classof(const MemRegion *R) { 30767d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek return R->getKind() == HeapSpaceRegionKind; 30867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek } 30967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek}; 31067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 3112b87ae45e129b941d0a4d221c9d4842385a119bdTed Kremenekclass UnknownSpaceRegion : public MemSpaceRegion { 31299ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikie virtual void anchor(); 3132b87ae45e129b941d0a4d221c9d4842385a119bdTed Kremenek friend class MemRegionManager; 3142b87ae45e129b941d0a4d221c9d4842385a119bdTed Kremenek UnknownSpaceRegion(MemRegionManager *mgr) 3152b87ae45e129b941d0a4d221c9d4842385a119bdTed Kremenek : MemSpaceRegion(mgr, UnknownSpaceRegionKind) {} 3162b87ae45e129b941d0a4d221c9d4842385a119bdTed Kremenekpublic: 3172b87ae45e129b941d0a4d221c9d4842385a119bdTed Kremenek static bool classof(const MemRegion *R) { 3182b87ae45e129b941d0a4d221c9d4842385a119bdTed Kremenek return R->getKind() == UnknownSpaceRegionKind; 3192b87ae45e129b941d0a4d221c9d4842385a119bdTed Kremenek } 3202b87ae45e129b941d0a4d221c9d4842385a119bdTed Kremenek}; 3212b87ae45e129b941d0a4d221c9d4842385a119bdTed Kremenek 32267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekclass StackSpaceRegion : public MemSpaceRegion { 32367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekprivate: 32467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const StackFrameContext *SFC; 3259e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 32667d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekprotected: 32767d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek StackSpaceRegion(MemRegionManager *mgr, Kind k, const StackFrameContext *sfc) 32867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek : MemSpaceRegion(mgr, k), SFC(sfc) { 32967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek assert(classof(this)); 33067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek } 33141168eac256fed59ec5406a75fce91c59cd5dd91Ted Kremenek 33267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekpublic: 33367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const StackFrameContext *getStackFrame() const { return SFC; } 33467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 33567d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek void Profile(llvm::FoldingSetNodeID &ID) const; 33667d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 33767d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek static bool classof(const MemRegion *R) { 33867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek Kind k = R->getKind(); 33967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek return k >= StackLocalsSpaceRegionKind && 34067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek k <= StackArgumentsSpaceRegionKind; 34167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek } 34267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek}; 34367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 34467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekclass StackLocalsSpaceRegion : public StackSpaceRegion { 34599ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikie virtual void anchor(); 34667d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek friend class MemRegionManager; 34767d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek StackLocalsSpaceRegion(MemRegionManager *mgr, const StackFrameContext *sfc) 34867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek : StackSpaceRegion(mgr, StackLocalsSpaceRegionKind, sfc) {} 34967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekpublic: 35067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek static bool classof(const MemRegion *R) { 35167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek return R->getKind() == StackLocalsSpaceRegionKind; 35267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek } 35367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek}; 35467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 35567d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekclass StackArgumentsSpaceRegion : public StackSpaceRegion { 35667d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekprivate: 35799ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikie virtual void anchor(); 35867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek friend class MemRegionManager; 35967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek StackArgumentsSpaceRegion(MemRegionManager *mgr, const StackFrameContext *sfc) 36067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek : StackSpaceRegion(mgr, StackArgumentsSpaceRegionKind, sfc) {} 36167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekpublic: 36267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek static bool classof(const MemRegion *R) { 36367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek return R->getKind() == StackArgumentsSpaceRegionKind; 3649e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 3659e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek}; 3669e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 3677caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu 368993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek/// SubRegion - A region that subsets another larger region. Most regions 369993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek/// are subclasses of SubRegion. 370993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenekclass SubRegion : public MemRegion { 37199ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikieprivate: 37299ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikie virtual void anchor(); 3739e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekprotected: 3741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const MemRegion* superRegion; 375993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek SubRegion(const MemRegion* sReg, Kind k) : MemRegion(k), superRegion(sReg) {} 3769e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekpublic: 3779e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek const MemRegion* getSuperRegion() const { 3789e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return superRegion; 3799e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 3801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38132f2656b90900ac04c4b50e87c16749d0ceb9ef2Jordy Rose /// getExtent - Returns the size of the region in bytes. 382c8413fd03f73084a5c93028f8b4db619fc388087Ted Kremenek virtual DefinedOrUnknownSVal getExtent(SValBuilder &svalBuilder) const { 38332f2656b90900ac04c4b50e87c16749d0ceb9ef2Jordy Rose return UnknownVal(); 38432f2656b90900ac04c4b50e87c16749d0ceb9ef2Jordy Rose } 38532f2656b90900ac04c4b50e87c16749d0ceb9ef2Jordy Rose 386a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek MemRegionManager* getMemRegionManager() const; 3871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3887e5d6ed47dcedce35043de59ee00464b681bc786Zhongxing Xu bool isSubRegionOf(const MemRegion* R) const; 3891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3909e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek static bool classof(const MemRegion* R) { 39167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek return R->getKind() > END_MEMSPACES; 392993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek } 393993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek}; 3941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39519e1f0ba5cec738ce6cebe3fe0e1edc782206494Ted Kremenek//===----------------------------------------------------------------------===// 39619e1f0ba5cec738ce6cebe3fe0e1edc782206494Ted Kremenek// MemRegion subclasses. 3971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump//===----------------------------------------------------------------------===// 398ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 39982bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek/// AllocaRegion - A region that represents an untyped blob of bytes created 40082bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek/// by a call to 'alloca'. 40182bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenekclass AllocaRegion : public SubRegion { 40282bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek friend class MemRegionManager; 40382bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenekprotected: 40482bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek unsigned Cnt; // Block counter. Used to distinguish different pieces of 40582bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek // memory allocated by alloca at the same call site. 4069c378f705405d37f49795d5e915989de774fe11fTed Kremenek const Expr *Ex; 40782bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek 4089c378f705405d37f49795d5e915989de774fe11fTed Kremenek AllocaRegion(const Expr *ex, unsigned cnt, const MemRegion *superRegion) 40982bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek : SubRegion(superRegion, AllocaRegionKind), Cnt(cnt), Ex(ex) {} 4101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 41182bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenekpublic: 4121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4139c378f705405d37f49795d5e915989de774fe11fTed Kremenek const Expr *getExpr() const { return Ex; } 4149852b5bf94d4934de63da6356c651c61e81f58d9Zhongxing Xu 4159852b5bf94d4934de63da6356c651c61e81f58d9Zhongxing Xu bool isBoundable() const { return true; } 4169852b5bf94d4934de63da6356c651c61e81f58d9Zhongxing Xu 417c8413fd03f73084a5c93028f8b4db619fc388087Ted Kremenek DefinedOrUnknownSVal getExtent(SValBuilder &svalBuilder) const; 41832f2656b90900ac04c4b50e87c16749d0ceb9ef2Jordy Rose 41982bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek void Profile(llvm::FoldingSetNodeID& ID) const; 42082bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek 4219c378f705405d37f49795d5e915989de774fe11fTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, const Expr *Ex, 4227ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek unsigned Cnt, const MemRegion *superRegion); 4231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4249c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &os) const; 4251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42682bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek static bool classof(const MemRegion* R) { 42782bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek return R->getKind() == AllocaRegionKind; 42882bd99f4db2454cc6e1b7bfaac6db25cb3444ddcTed Kremenek } 4291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump}; 4301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 431993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek/// TypedRegion - An abstract class representing regions that are typed. 432993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenekclass TypedRegion : public SubRegion { 43399ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikiepublic: 43499ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikie virtual void anchor(); 435993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenekprotected: 436993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek TypedRegion(const MemRegion* sReg, Kind k) : SubRegion(sReg, k) {} 4371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 438993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenekpublic: 4399697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek virtual QualType getLocationType() const = 0; 4409697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek 4419697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek QualType getDesugaredLocationType(ASTContext &Context) const { 4429697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek return getLocationType().getDesugaredType(Context); 4439697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek } 4449697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek 4459697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek bool isBoundable() const { return true; } 4469697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek 4479697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek static bool classof(const MemRegion* R) { 4489697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek unsigned k = R->getKind(); 4499697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek return k >= BEG_TYPED_REGIONS && k <= END_TYPED_REGIONS; 4509697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek } 4519697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek}; 4529697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek 4539697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek/// TypedValueRegion - An abstract class representing regions having a typed value. 4549697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenekclass TypedValueRegion : public TypedRegion { 45599ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikiepublic: 45699ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikie virtual void anchor(); 4579697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenekprotected: 4589697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek TypedValueRegion(const MemRegion* sReg, Kind k) : TypedRegion(sReg, k) {} 4599697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek 4609697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenekpublic: 461018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu virtual QualType getValueType() const = 0; 4621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 463018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu virtual QualType getLocationType() const { 4646eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek // FIXME: We can possibly optimize this later to cache this value. 465a6b0b96e5376cd9cf182a3e240e0537feed43cdeTed Kremenek QualType T = getValueType(); 466a6b0b96e5376cd9cf182a3e240e0537feed43cdeTed Kremenek ASTContext &ctx = getContext(); 467a6b0b96e5376cd9cf182a3e240e0537feed43cdeTed Kremenek if (T->getAs<ObjCObjectType>()) 468a6b0b96e5376cd9cf182a3e240e0537feed43cdeTed Kremenek return ctx.getObjCObjectPointerType(T); 469a6b0b96e5376cd9cf182a3e240e0537feed43cdeTed Kremenek return ctx.getPointerType(getValueType()); 4706eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek } 4711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 47249f4e1cbd839da27ff4814b4ea6d85a79f786cbdJohn McCall QualType getDesugaredValueType(ASTContext &Context) const { 473018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu QualType T = getValueType(); 4741ab55e9bb87d98bff1d42c7a0ee502c64755d9f5Douglas Gregor return T.getTypePtrOrNull() ? T.getDesugaredType(Context) : T; 47514553abd17d303b0b310b3ab1523eb0d30d8121cTed Kremenek } 4761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 477993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek static bool classof(const MemRegion* R) { 4789e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek unsigned k = R->getKind(); 4799697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek return k >= BEG_TYPED_VALUE_REGIONS && k <= END_TYPED_VALUE_REGIONS; 4809e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 4819e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek}; 4829e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 483ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 484eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenekclass CodeTextRegion : public TypedRegion { 48599ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikiepublic: 48699ba9e3bd70671f3441fb974895f226a83ce0e66David Blaikie virtual void anchor(); 487eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenekprotected: 488eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek CodeTextRegion(const MemRegion *sreg, Kind k) : TypedRegion(sreg, k) {} 489ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xupublic: 490eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek bool isBoundable() const { return false; } 491eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek 492eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek static bool classof(const MemRegion* R) { 493eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek Kind k = R->getKind(); 494eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek return k >= FunctionTextRegionKind && k <= BlockTextRegionKind; 495eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek } 496eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek}; 497ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 498eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek/// FunctionTextRegion - A region that represents code texts of function. 499eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenekclass FunctionTextRegion : public CodeTextRegion { 500eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek const FunctionDecl *FD; 501eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenekpublic: 5029c378f705405d37f49795d5e915989de774fe11fTed Kremenek FunctionTextRegion(const FunctionDecl *fd, const MemRegion* sreg) 503eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek : CodeTextRegion(sreg, FunctionTextRegionKind), FD(fd) {} 504eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek 505018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu QualType getLocationType() const { 506018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu return getContext().getPointerType(FD->getType()); 507ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu } 508eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek 509abd46e13cfd48f2c9bf26d9759edb4366aaa6d5bTed Kremenek const FunctionDecl *getDecl() const { 510abd46e13cfd48f2c9bf26d9759edb4366aaa6d5bTed Kremenek return FD; 51172e032004b0d2c2c298e8e4f7027f23a21c0cc7dTed Kremenek } 512eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek 5139c378f705405d37f49795d5e915989de774fe11fTed Kremenek virtual void dumpToStream(raw_ostream &os) const; 514eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek 515ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu void Profile(llvm::FoldingSetNodeID& ID) const; 516eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek 517abd46e13cfd48f2c9bf26d9759edb4366aaa6d5bTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, const FunctionDecl *FD, 518abd46e13cfd48f2c9bf26d9759edb4366aaa6d5bTed Kremenek const MemRegion*); 519eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek 520ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu static bool classof(const MemRegion* R) { 521eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek return R->getKind() == FunctionTextRegionKind; 522eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek } 523eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek}; 524eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek 525eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek 526eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek/// BlockTextRegion - A region that represents code texts of blocks (closures). 5270a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek/// Blocks are represented with two kinds of regions. BlockTextRegions 5280a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek/// represent the "code", while BlockDataRegions represent instances of blocks, 5290a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek/// which correspond to "code+data". The distinction is important, because 5300a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek/// like a closure a block captures the values of externally referenced 5310a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek/// variables. 532eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenekclass BlockTextRegion : public CodeTextRegion { 53367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek friend class MemRegionManager; 53467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 535eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek const BlockDecl *BD; 5361d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek AnalysisDeclContext *AC; 537eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek CanQualType locTy; 53867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 53967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek BlockTextRegion(const BlockDecl *bd, CanQualType lTy, 5401d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek AnalysisDeclContext *ac, const MemRegion* sreg) 54167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek : CodeTextRegion(sreg, BlockTextRegionKind), BD(bd), AC(ac), locTy(lTy) {} 54267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 54367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekpublic: 544018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu QualType getLocationType() const { 545eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek return locTy; 546eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek } 547eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek 548eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek const BlockDecl *getDecl() const { 549eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek return BD; 550eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek } 55167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 5521d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek AnalysisDeclContext *getAnalysisDeclContext() const { return AC; } 553eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek 5549c378f705405d37f49795d5e915989de774fe11fTed Kremenek virtual void dumpToStream(raw_ostream &os) const; 555eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek 556eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek void Profile(llvm::FoldingSetNodeID& ID) const; 557eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek 558eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, const BlockDecl *BD, 5591d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek CanQualType, const AnalysisDeclContext*, 56067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const MemRegion*); 561eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek 562eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek static bool classof(const MemRegion* R) { 563eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek return R->getKind() == BlockTextRegionKind; 564ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu } 565ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu}; 5660a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek 5670a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek/// BlockDataRegion - A region that represents a block instance. 5680a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek/// Blocks are represented with two kinds of regions. BlockTextRegions 5690a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek/// represent the "code", while BlockDataRegions represent instances of blocks, 5700a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek/// which correspond to "code+data". The distinction is important, because 5710a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek/// like a closure a block captures the values of externally referenced 5720a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek/// variables. 5730a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenekclass BlockDataRegion : public SubRegion { 57467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek friend class MemRegionManager; 5750a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek const BlockTextRegion *BC; 57667d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const LocationContext *LC; // Can be null */ 5774240096011a187807058f887eb81df750ffa17feTed Kremenek void *ReferencedVars; 57867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 57967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek BlockDataRegion(const BlockTextRegion *bc, const LocationContext *lc, 5800a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek const MemRegion *sreg) 5814240096011a187807058f887eb81df750ffa17feTed Kremenek : SubRegion(sreg, BlockDataRegionKind), BC(bc), LC(lc), ReferencedVars(0) {} 5820a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek 58367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekpublic: 5840a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek const BlockTextRegion *getCodeRegion() const { return BC; } 5854240096011a187807058f887eb81df750ffa17feTed Kremenek 586d02e83a548359df978f40cc1a52ffd78b7ef371bTed Kremenek const BlockDecl *getDecl() const { return BC->getDecl(); } 587d02e83a548359df978f40cc1a52ffd78b7ef371bTed Kremenek 58881cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek class referenced_vars_iterator { 58981cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek const MemRegion * const *R; 59081cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek public: 59181cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek explicit referenced_vars_iterator(const MemRegion * const *r) : R(r) {} 59281cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek 59381cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek operator const MemRegion * const *() const { 59481cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek return R; 59581cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek } 59681cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek 59781cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek const VarRegion* operator*() const { 59881cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek return cast<VarRegion>(*R); 59981cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek } 60081cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek 60181cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek bool operator==(const referenced_vars_iterator &I) const { 60281cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek return I.R == R; 60381cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek } 60481cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek bool operator!=(const referenced_vars_iterator &I) const { 60581cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek return I.R != R; 60681cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek } 6079c378f705405d37f49795d5e915989de774fe11fTed Kremenek referenced_vars_iterator &operator++() { 60881cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek ++R; 60981cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek return *this; 61081cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek } 61181cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek }; 61281cef5889027d0f96b24afa7a0bb28d9023474edTed Kremenek 6134240096011a187807058f887eb81df750ffa17feTed Kremenek referenced_vars_iterator referenced_vars_begin() const; 6144240096011a187807058f887eb81df750ffa17feTed Kremenek referenced_vars_iterator referenced_vars_end() const; 6150a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek 6169c378f705405d37f49795d5e915989de774fe11fTed Kremenek virtual void dumpToStream(raw_ostream &os) const; 6170a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek 6180a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek void Profile(llvm::FoldingSetNodeID& ID) const; 6190a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek 62067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID&, const BlockTextRegion *, 62167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const LocationContext *, const MemRegion *); 6220a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek 6230a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek static bool classof(const MemRegion* R) { 6240a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek return R->getKind() == BlockDataRegionKind; 6250a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek } 6264240096011a187807058f887eb81df750ffa17feTed Kremenekprivate: 6274240096011a187807058f887eb81df750ffa17feTed Kremenek void LazyInitializeReferencedVars(); 6280a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek}; 629ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 630026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu/// SymbolicRegion - A special, "non-concrete" region. Unlike other region 631026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu/// clases, SymbolicRegion represents a region that serves as an alias for 632026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu/// either a real region, a NULL pointer, etc. It essentially is used to 633026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu/// map the concept of symbolic values into the domain of regions. Symbolic 634026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu/// regions do not need to be typed. 635e8e86482da4c1872673bbb9c237649229d19793bTed Kremenekclass SymbolicRegion : public SubRegion { 636026c66395b88a09437319139a43b090093f7e1ddZhongxing Xuprotected: 637026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu const SymbolRef sym; 638026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu 639026c66395b88a09437319139a43b090093f7e1ddZhongxing Xupublic: 6401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SymbolicRegion(const SymbolRef s, const MemRegion* sreg) 641e8e86482da4c1872673bbb9c237649229d19793bTed Kremenek : SubRegion(sreg, SymbolicRegionKind), sym(s) {} 6421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 643026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu SymbolRef getSymbol() const { 644026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu return sym; 645026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu } 646026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu 6479852b5bf94d4934de63da6356c651c61e81f58d9Zhongxing Xu bool isBoundable() const { return true; } 6489852b5bf94d4934de63da6356c651c61e81f58d9Zhongxing Xu 649c8413fd03f73084a5c93028f8b4db619fc388087Ted Kremenek DefinedOrUnknownSVal getExtent(SValBuilder &svalBuilder) const; 65032f2656b90900ac04c4b50e87c16749d0ceb9ef2Jordy Rose 651026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu void Profile(llvm::FoldingSetNodeID& ID) const; 652026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu 653250101353b711a409b075f1bc11070dddec7100bTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, 654250101353b711a409b075f1bc11070dddec7100bTed Kremenek SymbolRef sym, 655250101353b711a409b075f1bc11070dddec7100bTed Kremenek const MemRegion* superRegion); 6561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6579c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &os) const; 6581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 659026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu static bool classof(const MemRegion* R) { 660026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu return R->getKind() == SymbolicRegionKind; 661026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu } 6621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump}; 663026c66395b88a09437319139a43b090093f7e1ddZhongxing Xu 664e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu/// StringRegion - Region associated with a StringLiteral. 6659697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenekclass StringRegion : public TypedValueRegion { 666e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu friend class MemRegionManager; 667e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu const StringLiteral* Str; 668e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xuprotected: 669e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 670250101353b711a409b075f1bc11070dddec7100bTed Kremenek StringRegion(const StringLiteral* str, const MemRegion* sreg) 6719697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek : TypedValueRegion(sreg, StringRegionKind), Str(str) {} 672e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 673e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu static void ProfileRegion(llvm::FoldingSetNodeID& ID, 674e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu const StringLiteral* Str, 675e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu const MemRegion* superRegion); 676e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 677e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xupublic: 6786613d08a19aa6ce9b6330487f3bfac841d4b8a4dZhongxing Xu 6796613d08a19aa6ce9b6330487f3bfac841d4b8a4dZhongxing Xu const StringLiteral* getStringLiteral() const { return Str; } 6801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 681018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu QualType getValueType() const { 682ff6978263439e21d795b0602fabcb38488ef8441Zhongxing Xu return Str->getType(); 683ff6978263439e21d795b0602fabcb38488ef8441Zhongxing Xu } 684e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 685c8413fd03f73084a5c93028f8b4db619fc388087Ted Kremenek DefinedOrUnknownSVal getExtent(SValBuilder &svalBuilder) const; 68632f2656b90900ac04c4b50e87c16749d0ceb9ef2Jordy Rose 6870a51f1c6cec6032bcf64ce205bc4edfdc3cb3a2fZhongxing Xu bool isBoundable() const { return false; } 6880a51f1c6cec6032bcf64ce205bc4edfdc3cb3a2fZhongxing Xu 689e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu void Profile(llvm::FoldingSetNodeID& ID) const { 690e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu ProfileRegion(ID, Str, superRegion); 691e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu } 692e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 6939c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &os) const; 694cc128b32429494fe04ed36d7ba30c011cb4e173aZhongxing Xu 695e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu static bool classof(const MemRegion* R) { 696e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu return R->getKind() == StringRegionKind; 697e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu } 698e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu}; 6994c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek 7004c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek/// The region associated with an ObjCStringLiteral. 7014c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenekclass ObjCStringRegion : public TypedValueRegion { 7024c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek friend class MemRegionManager; 7034c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek const ObjCStringLiteral* Str; 7044c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenekprotected: 7054c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek 7064c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek ObjCStringRegion(const ObjCStringLiteral* str, const MemRegion* sreg) 7074c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek : TypedValueRegion(sreg, ObjCStringRegionKind), Str(str) {} 7084c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek 7094c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, 7104c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek const ObjCStringLiteral* Str, 7114c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek const MemRegion* superRegion); 7124c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek 7134c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenekpublic: 7144c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek 7154c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek const ObjCStringLiteral* getObjCStringLiteral() const { return Str; } 7164c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek 7174c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek QualType getValueType() const { 7184c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek return Str->getType(); 7194c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek } 7204c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek 7214c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek bool isBoundable() const { return false; } 7224c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek 7234c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek void Profile(llvm::FoldingSetNodeID& ID) const { 7244c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek ProfileRegion(ID, Str, superRegion); 7254c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek } 7264c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek 7274c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek void dumpToStream(raw_ostream &os) const; 7284c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek 7294c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek static bool classof(const MemRegion* R) { 7304c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek return R->getKind() == ObjCStringRegionKind; 7314c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek } 7324c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek}; 733e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 734329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek/// CompoundLiteralRegion - A memory region representing a compound literal. 735329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek/// Compound literals are essentially temporaries that are stack allocated 736329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek/// or in the global constant pool. 7379697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenekclass CompoundLiteralRegion : public TypedValueRegion { 738329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenekprivate: 739329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek friend class MemRegionManager; 7409c378f705405d37f49795d5e915989de774fe11fTed Kremenek const CompoundLiteralExpr *CL; 741329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek 7429c378f705405d37f49795d5e915989de774fe11fTed Kremenek CompoundLiteralRegion(const CompoundLiteralExpr *cl, const MemRegion* sReg) 7439697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek : TypedValueRegion(sReg, CompoundLiteralRegionKind), CL(cl) {} 7441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 745329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, 7469c378f705405d37f49795d5e915989de774fe11fTed Kremenek const CompoundLiteralExpr *CL, 747329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek const MemRegion* superRegion); 748329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenekpublic: 749018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu QualType getValueType() const { 750018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu return CL->getType(); 75177cfac623178d0c16e16e2f171d20b0fea8fde30Zhongxing Xu } 7520a51f1c6cec6032bcf64ce205bc4edfdc3cb3a2fZhongxing Xu 7539a08fee80a34938b8c11c7166e009a89ced4c2b4Zhongxing Xu bool isBoundable() const { return !CL->isFileScope(); } 7549a08fee80a34938b8c11c7166e009a89ced4c2b4Zhongxing Xu 755329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek void Profile(llvm::FoldingSetNodeID& ID) const; 7561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7579c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &os) const; 758329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek 7599c378f705405d37f49795d5e915989de774fe11fTed Kremenek const CompoundLiteralExpr *getLiteralExpr() const { return CL; } 7601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 761329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek static bool classof(const MemRegion* R) { 762329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek return R->getKind() == CompoundLiteralRegionKind; 763329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek } 764329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek}; 765178927517fa09ddbb04dc8ef725b5716c18aae21Zhongxing Xu 7669697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenekclass DeclRegion : public TypedValueRegion { 7679e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekprotected: 7689c378f705405d37f49795d5e915989de774fe11fTed Kremenek const Decl *D; 7699e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 7709c378f705405d37f49795d5e915989de774fe11fTed Kremenek DeclRegion(const Decl *d, const MemRegion* sReg, Kind k) 7719697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek : TypedValueRegion(sReg, k), D(d) {} 7729e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 7739c378f705405d37f49795d5e915989de774fe11fTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, const Decl *D, 7749e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek const MemRegion* superRegion, Kind k); 7751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 776bfb6582ef46dfb33672d9621f879fc262339d704Zhongxing Xupublic: 7779c378f705405d37f49795d5e915989de774fe11fTed Kremenek const Decl *getDecl() const { return D; } 7789e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek void Profile(llvm::FoldingSetNodeID& ID) const; 7791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 780c8413fd03f73084a5c93028f8b4db619fc388087Ted Kremenek DefinedOrUnknownSVal getExtent(SValBuilder &svalBuilder) const; 78132f2656b90900ac04c4b50e87c16749d0ceb9ef2Jordy Rose 782e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu static bool classof(const MemRegion* R) { 783e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu unsigned k = R->getKind(); 78467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek return k >= BEG_DECL_REGIONS && k <= END_DECL_REGIONS; 785e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu } 7869e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek}; 7871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7889e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass VarRegion : public DeclRegion { 7899e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek friend class MemRegionManager; 790d17da2b99f323fa91b01e1dd119cc32e0ee8197dTed Kremenek 791d17da2b99f323fa91b01e1dd119cc32e0ee8197dTed Kremenek // Constructors and private methods. 7929c378f705405d37f49795d5e915989de774fe11fTed Kremenek VarRegion(const VarDecl *vd, const MemRegion* sReg) 79367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek : DeclRegion(vd, sReg, VarRegionKind) {} 7949e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 7959c378f705405d37f49795d5e915989de774fe11fTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, const VarDecl *VD, 796d17da2b99f323fa91b01e1dd119cc32e0ee8197dTed Kremenek const MemRegion *superRegion) { 7979e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek DeclRegion::ProfileRegion(ID, VD, superRegion, VarRegionKind); 7989e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 7991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 800d17da2b99f323fa91b01e1dd119cc32e0ee8197dTed Kremenek void Profile(llvm::FoldingSetNodeID& ID) const; 8011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 803d17da2b99f323fa91b01e1dd119cc32e0ee8197dTed Kremenek const VarDecl *getDecl() const { return cast<VarDecl>(D); } 8041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8055348f94abd0e9d3945da8d059b55b156967e8ff9Ted Kremenek const StackFrameContext *getStackFrame() const; 8065348f94abd0e9d3945da8d059b55b156967e8ff9Ted Kremenek 807018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu QualType getValueType() const { 8086eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek // FIXME: We can cache this if needed. 809018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu return getDecl()->getType(); 8101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 8111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8129c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &os) const; 8131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8149e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek static bool classof(const MemRegion* R) { 8159e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return R->getKind() == VarRegionKind; 8161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 8179e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek}; 818de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek 819de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek/// CXXThisRegion - Represents the region for the implicit 'this' parameter 820de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek/// in a call to a C++ method. This region doesn't represent the object 821de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek/// referred to by 'this', but rather 'this' itself. 8229697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenekclass CXXThisRegion : public TypedValueRegion { 823de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek friend class MemRegionManager; 824de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek CXXThisRegion(const PointerType *thisPointerTy, 825de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek const MemRegion *sReg) 8269697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek : TypedValueRegion(sReg, CXXThisRegionKind), ThisPointerTy(thisPointerTy) {} 827de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek 828de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID &ID, 829de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek const PointerType *PT, 830de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek const MemRegion *sReg); 831de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek 832de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek void Profile(llvm::FoldingSetNodeID &ID) const; 833de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek 834de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenekpublic: 835018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu QualType getValueType() const { 836de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek return QualType(ThisPointerTy, 0); 837de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek } 8387caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu 8399c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &os) const; 840de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek 841de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek static bool classof(const MemRegion* R) { 842de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek return R->getKind() == CXXThisRegionKind; 843de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek } 844de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek 845de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenekprivate: 846de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek const PointerType *ThisPointerTy; 847de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek}; 8489e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 8499e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass FieldRegion : public DeclRegion { 8509e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek friend class MemRegionManager; 8519e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 8529c378f705405d37f49795d5e915989de774fe11fTed Kremenek FieldRegion(const FieldDecl *fd, const MemRegion* sReg) 8539e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek : DeclRegion(fd, sReg, FieldRegionKind) {} 8549e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 8554bd1eefd48c70ebef185e524d0484c00f16000cfTed Kremenekpublic: 8561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8579c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &os) const; 8581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8599c378f705405d37f49795d5e915989de774fe11fTed Kremenek const FieldDecl *getDecl() const { return cast<FieldDecl>(D); } 8601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 861018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu QualType getValueType() const { 8626eddeb153415049c7b62de4b45385a759a6906c6Ted Kremenek // FIXME: We can cache this if needed. 863018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu return getDecl()->getType(); 8641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 8654bd1eefd48c70ebef185e524d0484c00f16000cfTed Kremenek 866c8413fd03f73084a5c93028f8b4db619fc388087Ted Kremenek DefinedOrUnknownSVal getExtent(SValBuilder &svalBuilder) const; 86732f2656b90900ac04c4b50e87c16749d0ceb9ef2Jordy Rose 8689c378f705405d37f49795d5e915989de774fe11fTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, const FieldDecl *FD, 8696304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek const MemRegion* superRegion) { 8709e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek DeclRegion::ProfileRegion(ID, FD, superRegion, FieldRegionKind); 8719e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 8721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8739e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek static bool classof(const MemRegion* R) { 8749e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return R->getKind() == FieldRegionKind; 8759e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 8769e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek}; 8771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8789e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass ObjCIvarRegion : public DeclRegion { 8791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8809e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek friend class MemRegionManager; 8811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 882c35fb7d67d515659ad2325b4f6ec97c9fe64fb63Benjamin Kramer ObjCIvarRegion(const ObjCIvarDecl *ivd, const MemRegion* sReg); 8839e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 8849c378f705405d37f49795d5e915989de774fe11fTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, const ObjCIvarDecl *ivd, 885c35fb7d67d515659ad2325b4f6ec97c9fe64fb63Benjamin Kramer const MemRegion* superRegion); 8861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8879e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekpublic: 888c35fb7d67d515659ad2325b4f6ec97c9fe64fb63Benjamin Kramer const ObjCIvarDecl *getDecl() const; 889c35fb7d67d515659ad2325b4f6ec97c9fe64fb63Benjamin Kramer QualType getValueType() const; 8901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8919c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &os) const; 8921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8939e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek static bool classof(const MemRegion* R) { 8949e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return R->getKind() == ObjCIvarRegionKind; 8959e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek } 8969e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek}; 8977caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu//===----------------------------------------------------------------------===// 898fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner// Auxiliary data classes for use with MemRegions. 8997caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu//===----------------------------------------------------------------------===// 9007caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu 9017caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xuclass ElementRegion; 9027caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu 9037caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xuclass RegionRawOffset { 9047caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xuprivate: 9057caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu friend class ElementRegion; 9067caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu 9077caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu const MemRegion *Region; 9089ff2b13aee0f89d23ef4820218f9b88bb5e5c1c1Ken Dyck CharUnits Offset; 9097caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu 9109ff2b13aee0f89d23ef4820218f9b88bb5e5c1c1Ken Dyck RegionRawOffset(const MemRegion* reg, CharUnits offset = CharUnits::Zero()) 9117caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu : Region(reg), Offset(offset) {} 9127caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu 9137caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xupublic: 9147caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu // FIXME: Eventually support symbolic offsets. 9159ff2b13aee0f89d23ef4820218f9b88bb5e5c1c1Ken Dyck CharUnits getOffset() const { return Offset; } 9167caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu const MemRegion *getRegion() const { return Region; } 9177caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu 9189c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &os) const; 9197caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu void dump() const; 9207caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu}; 921511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 9221437425a62dbf7bdb0a855d3ed3b05ed2019ec1eAnna Zaks/// \brief ElementRegin is used to represent both array elements and casts. 9239697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenekclass ElementRegion : public TypedValueRegion { 924511191ce8920160525611be2be754c32a0724c3eZhongxing Xu friend class MemRegionManager; 925511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 926f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek QualType ElementType; 92702282acd7a42d06a3178e3102d34a585bd82dd9fTed Kremenek NonLoc Index; 928511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 92902282acd7a42d06a3178e3102d34a585bd82dd9fTed Kremenek ElementRegion(QualType elementType, NonLoc Idx, const MemRegion* sReg) 9309697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek : TypedValueRegion(sReg, ElementRegionKind), 931f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek ElementType(elementType), Index(Idx) { 9323d8173c1c68f451c7492f92023d829c626845925Chris Lattner assert((!isa<nonloc::ConcreteInt>(&Idx) || 9333d8173c1c68f451c7492f92023d829c626845925Chris Lattner cast<nonloc::ConcreteInt>(&Idx)->getValue().isSigned()) && 93443b28d07019bc78447ecbbb721526de4ffd83f20Chris Lattner "The index must be signed"); 9350395b5d4987fe5baa818015e9d294c128619e4ecZhongxing Xu } 9361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 937f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek static void ProfileRegion(llvm::FoldingSetNodeID& ID, QualType elementType, 938f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek SVal Idx, const MemRegion* superRegion); 939511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 940511191ce8920160525611be2be754c32a0724c3eZhongxing Xupublic: 941511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 94202282acd7a42d06a3178e3102d34a585bd82dd9fTed Kremenek NonLoc getIndex() const { return Index; } 9436e78e1b22f3b16bb2ef76950b9b75f060bdba7bfZhongxing Xu 944018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu QualType getValueType() const { 945f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek return ElementType; 946f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek } 9471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 948f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek QualType getElementType() const { 949f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek return ElementType; 950abb042f33ea8e6107a7dc8efc51d2ace329f9f48Ted Kremenek } 9517caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu /// Compute the offset within the array. The array might also be a subobject. 9527caf9b369cba6edaf6eac25121cbc65ee938f14dZhongxing Xu RegionRawOffset getAsArrayOffset() const; 9531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9549c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &os) const; 955b21ff77c8126ea628b66d2ffb931fdaa7884f5d2Zhongxing Xu 956511191ce8920160525611be2be754c32a0724c3eZhongxing Xu void Profile(llvm::FoldingSetNodeID& ID) const; 957511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 958511191ce8920160525611be2be754c32a0724c3eZhongxing Xu static bool classof(const MemRegion* R) { 959511191ce8920160525611be2be754c32a0724c3eZhongxing Xu return R->getKind() == ElementRegionKind; 960511191ce8920160525611be2be754c32a0724c3eZhongxing Xu } 961511191ce8920160525611be2be754c32a0724c3eZhongxing Xu}; 96219e1f0ba5cec738ce6cebe3fe0e1edc782206494Ted Kremenek 963bc37b8dd9914e02580f531fa6e5e72be34d9675eZhongxing Xu// C++ temporary object associated with an expression. 9649697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenekclass CXXTempObjectRegion : public TypedValueRegion { 965bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu friend class MemRegionManager; 966bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu 967bc37b8dd9914e02580f531fa6e5e72be34d9675eZhongxing Xu Expr const *Ex; 968bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu 96902fe28c8a6da29d4ad88d0900c133dcf22d24a75Zhongxing Xu CXXTempObjectRegion(Expr const *E, MemRegion const *sReg) 9709697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek : TypedValueRegion(sReg, CXXTempObjectRegionKind), Ex(E) {} 971bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu 972bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu static void ProfileRegion(llvm::FoldingSetNodeID &ID, 973bc37b8dd9914e02580f531fa6e5e72be34d9675eZhongxing Xu Expr const *E, const MemRegion *sReg); 974bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu 975bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xupublic: 976782f63ecd124f9384f988dc7e0cf4ae1540c15f6Jeffrey Yasskin const Expr *getExpr() const { return Ex; } 977782f63ecd124f9384f988dc7e0cf4ae1540c15f6Jeffrey Yasskin 978018220c343c103b7dfaa117a7a474c7a7fd6d068Zhongxing Xu QualType getValueType() const { 979bc37b8dd9914e02580f531fa6e5e72be34d9675eZhongxing Xu return Ex->getType(); 980bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu } 981bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu 9829c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &os) const; 983e1aeb13251a4858724d2b7ad1925d25076f23d08Zhongxing Xu 984bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu void Profile(llvm::FoldingSetNodeID &ID) const; 985bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu 986bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu static bool classof(const MemRegion* R) { 98702fe28c8a6da29d4ad88d0900c133dcf22d24a75Zhongxing Xu return R->getKind() == CXXTempObjectRegionKind; 988bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu } 989bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu}; 990bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu 9914fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu// CXXBaseObjectRegion represents a base object within a C++ object. It is 9924fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu// identified by the base class declaration and the region of its parent object. 9939697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenekclass CXXBaseObjectRegion : public TypedValueRegion { 9944fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu friend class MemRegionManager; 9954fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu 9964fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu const CXXRecordDecl *decl; 9974fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu 9984fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu CXXBaseObjectRegion(const CXXRecordDecl *d, const MemRegion *sReg) 9999697934650354bed2e509d8e7e44f21a1fb00f76Ted Kremenek : TypedValueRegion(sReg, CXXBaseObjectRegionKind), decl(d) {} 10004fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu 10014fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu static void ProfileRegion(llvm::FoldingSetNodeID &ID, 10024fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu const CXXRecordDecl *decl, const MemRegion *sReg); 10034fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu 10044fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xupublic: 1005d074441e027471a914cbb909a7aad1d43224950fZhongxing Xu const CXXRecordDecl *getDecl() const { return decl; } 1006d074441e027471a914cbb909a7aad1d43224950fZhongxing Xu 10074fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu QualType getValueType() const; 10084fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu 10099c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &os) const; 10104fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu 10114fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu void Profile(llvm::FoldingSetNodeID &ID) const; 10124fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu 10134fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu static bool classof(const MemRegion *region) { 10144fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu return region->getKind() == CXXBaseObjectRegionKind; 10154fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu } 10164fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu}; 10174fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu 1018ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenektemplate<typename RegionTy> 1019ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenekconst RegionTy* MemRegion::getAs() const { 1020f7a0cf426eddae76e1a71dd2295631a2cf0560afTed Kremenek if (const RegionTy* RT = dyn_cast<RegionTy>(this)) 1021f7a0cf426eddae76e1a71dd2295631a2cf0560afTed Kremenek return RT; 10221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1023f7a0cf426eddae76e1a71dd2295631a2cf0560afTed Kremenek return NULL; 1024ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek} 1025511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 10269e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek//===----------------------------------------------------------------------===// 10279e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek// MemRegionManager - Factory object for creating regions. 10289e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek//===----------------------------------------------------------------------===// 10299e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 10309e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass MemRegionManager { 1031a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek ASTContext &C; 10329e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek llvm::BumpPtrAllocator& A; 10339e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek llvm::FoldingSet<MemRegion> Regions; 10341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1035eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks GlobalInternalSpaceRegion *InternalGlobals; 1036eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks GlobalSystemSpaceRegion *SystemGlobals; 1037eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks GlobalImmutableSpaceRegion *ImmutableGlobals; 1038eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks 10392b87ae45e129b941d0a4d221c9d4842385a119bdTed Kremenek 1040c30470dd245e2c3b367d3d806e75bf6cc20fc18cZhongxing Xu llvm::DenseMap<const StackFrameContext *, StackLocalsSpaceRegion *> 1041c30470dd245e2c3b367d3d806e75bf6cc20fc18cZhongxing Xu StackLocalsSpaceRegions; 1042c30470dd245e2c3b367d3d806e75bf6cc20fc18cZhongxing Xu llvm::DenseMap<const StackFrameContext *, StackArgumentsSpaceRegion *> 1043c30470dd245e2c3b367d3d806e75bf6cc20fc18cZhongxing Xu StackArgumentsSpaceRegions; 1044dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek llvm::DenseMap<const CodeTextRegion *, StaticGlobalSpaceRegion *> 1045dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek StaticsGlobalSpaceRegions; 10462b87ae45e129b941d0a4d221c9d4842385a119bdTed Kremenek 104767d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek HeapSpaceRegion *heap; 10482b87ae45e129b941d0a4d221c9d4842385a119bdTed Kremenek UnknownSpaceRegion *unknown; 1049d05552a21377f493c882298c59e8829040b01d34Ted Kremenek MemSpaceRegion *code; 1050dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu 10519e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekpublic: 1052a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek MemRegionManager(ASTContext &c, llvm::BumpPtrAllocator& a) 1053eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks : C(c), A(a), InternalGlobals(0), SystemGlobals(0), ImmutableGlobals(0), 1054eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks heap(0), unknown(0), code(0) {} 10551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10564240096011a187807058f887eb81df750ffa17feTed Kremenek ~MemRegionManager(); 10571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1058a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek ASTContext &getContext() { return C; } 10594240096011a187807058f887eb81df750ffa17feTed Kremenek 10604240096011a187807058f887eb81df750ffa17feTed Kremenek llvm::BumpPtrAllocator &getAllocator() { return A; } 10611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 106267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek /// getStackLocalsRegion - Retrieve the memory region associated with the 106367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek /// specified stack frame. 106467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const StackLocalsSpaceRegion * 106567d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek getStackLocalsRegion(const StackFrameContext *STC); 1066d05552a21377f493c882298c59e8829040b01d34Ted Kremenek 1067d05552a21377f493c882298c59e8829040b01d34Ted Kremenek /// getStackArgumentsRegion - Retrieve the memory region associated with 106867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek /// function/method arguments of the specified stack frame. 106967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const StackArgumentsSpaceRegion * 107067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek getStackArgumentsRegion(const StackFrameContext *STC); 10711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10729e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// getGlobalsRegion - Retrieve the memory region associated with 1073dcee3ce97fc76f20ce8f5a7451071e3dec537073Ted Kremenek /// global variables. 1074eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks const GlobalsSpaceRegion *getGlobalsRegion( 1075eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks MemRegion::Kind K = MemRegion::GlobalInternalSpaceRegionKind, 1076eb31a76d1cdaaf8874c549dc6bd964ff270d3822Anna Zaks const CodeTextRegion *R = 0); 10771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10789e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// getHeapRegion - Retrieve the memory region associated with the 10799e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// generic "heap". 108067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const HeapSpaceRegion *getHeapRegion(); 1081178927517fa09ddbb04dc8ef725b5716c18aae21Zhongxing Xu 1082178927517fa09ddbb04dc8ef725b5716c18aae21Zhongxing Xu /// getUnknownRegion - Retrieve the memory region associated with unknown 1083178927517fa09ddbb04dc8ef725b5716c18aae21Zhongxing Xu /// memory space. 1084b48ad64a0e9e8d6488adebe597b6af32c1eb84f4Ted Kremenek const MemSpaceRegion *getUnknownRegion(); 1085c540b261ac553b91840146eaa3fee3f11b1013a7Zhongxing Xu 1086b48ad64a0e9e8d6488adebe597b6af32c1eb84f4Ted Kremenek const MemSpaceRegion *getCodeRegion(); 1087ec13d9206645af07ef7c571405893b8d901de151Zhongxing Xu 10887090ae1a984eb446a5fb4da7b1f2573830653799Ted Kremenek /// getAllocaRegion - Retrieve a region associated with a call to alloca(). 10899c378f705405d37f49795d5e915989de774fe11fTed Kremenek const AllocaRegion *getAllocaRegion(const Expr *Ex, unsigned Cnt, 109067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const LocationContext *LC); 10911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1092329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek /// getCompoundLiteralRegion - Retrieve the region associated with a 1093329d6fde79254503b14724e1231a9d70fa6b387fTed Kremenek /// given CompoundLiteral. 1094b48ad64a0e9e8d6488adebe597b6af32c1eb84f4Ted Kremenek const CompoundLiteralRegion* 10959c378f705405d37f49795d5e915989de774fe11fTed Kremenek getCompoundLiteralRegion(const CompoundLiteralExpr *CL, 109667d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const LocationContext *LC); 1097de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek 1098fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner /// getCXXThisRegion - Retrieve the [artificial] region associated with the 1099de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek /// parameter 'this'. 1100de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek const CXXThisRegion *getCXXThisRegion(QualType thisPointerTy, 1101de0d26310191215a6d1d189dc419f87af18ce6beTed Kremenek const LocationContext *LC); 11021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1103993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek /// getSymbolicRegion - Retrieve or create a "symbolic" memory region. 1104b48ad64a0e9e8d6488adebe597b6af32c1eb84f4Ted Kremenek const SymbolicRegion* getSymbolicRegion(SymbolRef sym); 1105e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 11064c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek const StringRegion *getStringRegion(const StringLiteral* Str); 11074c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek 11084c62b557e269a27515dfca1f754ae936c8fdb824Ted Kremenek const ObjCStringRegion *getObjCStringRegion(const ObjCStringLiteral *Str); 1109e9f4e5420895a75dd788e9891921e7781c1823b9Zhongxing Xu 11109e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// getVarRegion - Retrieve or create the memory region associated with 1111d17da2b99f323fa91b01e1dd119cc32e0ee8197dTed Kremenek /// a specified VarDecl and LocationContext. 1112b48ad64a0e9e8d6488adebe597b6af32c1eb84f4Ted Kremenek const VarRegion* getVarRegion(const VarDecl *D, const LocationContext *LC); 11131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 111467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek /// getVarRegion - Retrieve or create the memory region associated with 111567d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek /// a specified VarDecl and super region. 111667d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const VarRegion* getVarRegion(const VarDecl *D, const MemRegion *superR); 111767d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 1118f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek /// getElementRegion - Retrieve the memory region associated with the 1119f936f4568700d799e7d92eecef67b0e2b822ae7eTed Kremenek /// associated element type, index, and super region. 112002282acd7a42d06a3178e3102d34a585bd82dd9fTed Kremenek const ElementRegion *getElementRegion(QualType elementType, NonLoc Idx, 1121856c6bcaea56e05255e9f3997ddd56b5c18a14f0Zhongxing Xu const MemRegion *superRegion, 1122856c6bcaea56e05255e9f3997ddd56b5c18a14f0Zhongxing Xu ASTContext &Ctx); 11231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1124b48ad64a0e9e8d6488adebe597b6af32c1eb84f4Ted Kremenek const ElementRegion *getElementRegionWithSuper(const ElementRegion *ER, 1125856c6bcaea56e05255e9f3997ddd56b5c18a14f0Zhongxing Xu const MemRegion *superRegion) { 1126a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek return getElementRegion(ER->getElementType(), ER->getIndex(), 1127a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek superRegion, ER->getContext()); 1128a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek } 1129511191ce8920160525611be2be754c32a0724c3eZhongxing Xu 11309e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// getFieldRegion - Retrieve or create the memory region associated with 11319e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// a specified FieldDecl. 'superRegion' corresponds to the containing 11329e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// memory region (which typically represents the memory representing 11339e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// a structure or class). 11349c378f705405d37f49795d5e915989de774fe11fTed Kremenek const FieldRegion *getFieldRegion(const FieldDecl *fd, 1135b48ad64a0e9e8d6488adebe597b6af32c1eb84f4Ted Kremenek const MemRegion* superRegion); 11361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1137b48ad64a0e9e8d6488adebe597b6af32c1eb84f4Ted Kremenek const FieldRegion *getFieldRegionWithSuper(const FieldRegion *FR, 1138b48ad64a0e9e8d6488adebe597b6af32c1eb84f4Ted Kremenek const MemRegion *superRegion) { 1139a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek return getFieldRegion(FR->getDecl(), superRegion); 1140a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek } 11411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11429e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// getObjCIvarRegion - Retrieve or create the memory region associated with 11439e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// a specified Objective-c instance variable. 'superRegion' corresponds 11449e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// to the containing region (which typically represents the Objective-C 11459e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek /// object). 11469c378f705405d37f49795d5e915989de774fe11fTed Kremenek const ObjCIvarRegion *getObjCIvarRegion(const ObjCIvarDecl *ivd, 1147b48ad64a0e9e8d6488adebe597b6af32c1eb84f4Ted Kremenek const MemRegion* superRegion); 11481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 114902fe28c8a6da29d4ad88d0900c133dcf22d24a75Zhongxing Xu const CXXTempObjectRegion *getCXXTempObjectRegion(Expr const *Ex, 115002fe28c8a6da29d4ad88d0900c133dcf22d24a75Zhongxing Xu LocationContext const *LC); 1151bb141217871e93767aa3f2de1b9946fa6d37066aZhongxing Xu 11524fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu const CXXBaseObjectRegion *getCXXBaseObjectRegion(const CXXRecordDecl *decl, 11534fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu const MemRegion *superRegion); 11544fd56816e0925c04f2c92e75399f5c9018d5d6fbZhongxing Xu 1155d074441e027471a914cbb909a7aad1d43224950fZhongxing Xu /// Create a CXXBaseObjectRegion with the same CXXRecordDecl but a different 1156d074441e027471a914cbb909a7aad1d43224950fZhongxing Xu /// super region. 1157d074441e027471a914cbb909a7aad1d43224950fZhongxing Xu const CXXBaseObjectRegion * 1158d074441e027471a914cbb909a7aad1d43224950fZhongxing Xu getCXXBaseObjectRegionWithSuper(const CXXBaseObjectRegion *baseReg, 1159d074441e027471a914cbb909a7aad1d43224950fZhongxing Xu const MemRegion *superRegion) { 1160d074441e027471a914cbb909a7aad1d43224950fZhongxing Xu return getCXXBaseObjectRegion(baseReg->getDecl(), superRegion); 1161d074441e027471a914cbb909a7aad1d43224950fZhongxing Xu } 1162d074441e027471a914cbb909a7aad1d43224950fZhongxing Xu 1163b48ad64a0e9e8d6488adebe597b6af32c1eb84f4Ted Kremenek const FunctionTextRegion *getFunctionTextRegion(const FunctionDecl *FD); 1164b48ad64a0e9e8d6488adebe597b6af32c1eb84f4Ted Kremenek const BlockTextRegion *getBlockTextRegion(const BlockDecl *BD, 116567d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek CanQualType locTy, 11661d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek AnalysisDeclContext *AC); 116767d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 116867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek /// getBlockDataRegion - Get the memory region associated with an instance 116967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek /// of a block. Unlike many other MemRegions, the LocationContext* 117067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek /// argument is allowed to be NULL for cases where we have no known 117167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek /// context. 1172b48ad64a0e9e8d6488adebe597b6af32c1eb84f4Ted Kremenek const BlockDataRegion *getBlockDataRegion(const BlockTextRegion *bc, 117367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const LocationContext *lc = NULL); 11741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1175bcd7f9f8cb2f1b78e8ad991677a4364044e1deb7Ted Kremenekprivate: 1176250101353b711a409b075f1bc11070dddec7100bTed Kremenek template <typename RegionTy, typename A1> 1177250101353b711a409b075f1bc11070dddec7100bTed Kremenek RegionTy* getRegion(const A1 a1); 11781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11796304b08daee27b25ae2e2bdb8bffd67dfad74b3cTed Kremenek template <typename RegionTy, typename A1> 1180eeea45611d45238c34474c183cee96d47ae79e24Ted Kremenek RegionTy* getSubRegion(const A1 a1, const MemRegion* superRegion); 11811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11827ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek template <typename RegionTy, typename A1, typename A2> 11837ae7ad9951f032d0a33b64c964f7cdcb9cc6f59bTed Kremenek RegionTy* getRegion(const A1 a1, const A2 a2); 1184dc0a25d9bff956cdbe54ea0bfc8fbbe3ceb4eb92Zhongxing Xu 11850a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek template <typename RegionTy, typename A1, typename A2> 11860a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek RegionTy* getSubRegion(const A1 a1, const A2 a2, 11870a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek const MemRegion* superRegion); 11880a8112a78d00b5140c5b7f16c3b34c2c0c13c1a0Ted Kremenek 118967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek template <typename RegionTy, typename A1, typename A2, typename A3> 119067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek RegionTy* getSubRegion(const A1 a1, const A2 a2, const A3 a3, 119167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const MemRegion* superRegion); 119267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 119367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek template <typename REG> 119467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const REG* LazyAllocate(REG*& region); 119567d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 119667d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek template <typename REG, typename ARG> 119767d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const REG* LazyAllocate(REG*& region, ARG a); 1198ed65d3d97132fbcdd124aef4d2478e348dfbd36bTed Kremenek}; 11991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1200250101353b711a409b075f1bc11070dddec7100bTed Kremenek//===----------------------------------------------------------------------===// 1201a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek// Out-of-line member definitions. 1202250101353b711a409b075f1bc11070dddec7100bTed Kremenek//===----------------------------------------------------------------------===// 1203250101353b711a409b075f1bc11070dddec7100bTed Kremenek 12049c378f705405d37f49795d5e915989de774fe11fTed Kremenekinline ASTContext &MemRegion::getContext() const { 1205a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek return getMemRegionManager()->getContext(); 1206a43484afda4c4fb4b23a53a2dc91d985d39dc2c4Ted Kremenek} 1207eb1c7a04509f5d25c09005a6d46bd8bbb3ca88cbTed Kremenek 12085a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis} // end GR namespace 12095a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 1210be91224894e1501133e224934285ba6440bf5b59Ted Kremenek} // end clang namespace 12119e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 1212250101353b711a409b075f1bc11070dddec7100bTed Kremenek//===----------------------------------------------------------------------===// 1213250101353b711a409b075f1bc11070dddec7100bTed Kremenek// Pretty-printing regions. 1214250101353b711a409b075f1bc11070dddec7100bTed Kremenek//===----------------------------------------------------------------------===// 1215250101353b711a409b075f1bc11070dddec7100bTed Kremenek 1216be91224894e1501133e224934285ba6440bf5b59Ted Kremeneknamespace llvm { 12179c378f705405d37f49795d5e915989de774fe11fTed Kremenekstatic inline raw_ostream &operator<<(raw_ostream &os, 12189ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek const clang::ento::MemRegion* R) { 12198800ad4eaa1621f6d23c8264971063b9f8da6a2eTed Kremenek R->dumpToStream(os); 12208800ad4eaa1621f6d23c8264971063b9f8da6a2eTed Kremenek return os; 1221be91224894e1501133e224934285ba6440bf5b59Ted Kremenek} 1222be91224894e1501133e224934285ba6440bf5b59Ted Kremenek} // end llvm namespace 12239e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 12249e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek#endif 1225