SVals.h revision fc06f988da35df75e623e0c1c4e4db4d36c0b43b
122ab7a4d900ed53285fd0b6720e7b43af84724d8Zhongxing Xu//== SVals.h - Abstract Values for Static Analysis ---------*- C++ -*--==// 2a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek// 3a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek// The LLVM Compiler Infrastructure 4a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek// 5a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek// This file is distributed under the University of Illinois Open Source 6a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek// License. See LICENSE.TXT for details. 7a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek// 8a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek//===----------------------------------------------------------------------===// 9a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek// 101c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu// This file defines SVal, Loc, and NonLoc, classes that represent 11a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek// abstract r-values for use with path-sensitive value tracking. 12a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek// 13a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek//===----------------------------------------------------------------------===// 14a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 155a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis#ifndef LLVM_CLANG_GR_RVALUE_H 165a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis#define LLVM_CLANG_GR_RVALUE_H 17a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 18d47d3b0cfeb7e8564ff77f48130fe63282b6d127Chris Lattner#include "clang/Basic/LLVM.h" 199b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/SymbolManager.h" 20632e8b84976f683b365eddfacd04ea5d6f4d8cdfTed Kremenek#include "llvm/ADT/ImmutableList.h" 216f9b3a4d7143362d3c2ac1f843d76971799f5b97Ted Kremenek 220f10d50fe23c08f5133db0ad7269e7995ad9b172Ted Kremenek//==------------------------------------------------------------------------==// 231c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu// Base SVal types. 241c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu//==------------------------------------------------------------------------==// 25a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 260f10d50fe23c08f5133db0ad7269e7995ad9b172Ted Kremeneknamespace clang { 27632e8b84976f683b365eddfacd04ea5d6f4d8cdfTed Kremenek 289ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremeneknamespace ento { 295a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 30632e8b84976f683b365eddfacd04ea5d6f4d8cdfTed Kremenekclass CompoundValData; 31a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenekclass LazyCompoundValData; 3218c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenekclass ProgramState; 33632e8b84976f683b365eddfacd04ea5d6f4d8cdfTed Kremenekclass BasicValueFactory; 349e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass MemRegion; 35a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenekclass TypedRegion; 36a1718c78770db93d1b762620f07728a56786f2aeZhongxing Xuclass MemRegionManager; 3718c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenekclass ProgramStateManager; 38c8413fd03f73084a5c93028f8b4db619fc388087Ted Kremenekclass SValBuilder; 391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan/// SVal - This represents a symbolic expression, which can be either 41834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan/// an L-value or an R-value. 42834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan/// 431c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass SVal { 44a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenekpublic: 45834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan enum BaseKind { 46834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan // The enumerators must be representable using 2 bits. 47834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan UndefinedKind = 0, // for subclass UndefinedVal (an uninitialized value) 48834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan UnknownKind = 1, // for subclass UnknownVal (a void value) 49834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan LocKind = 2, // for subclass Loc (an L-value) 50834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan NonLocKind = 3 // for subclass NonLoc (an R-value that's not 51834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan // an L-value) 52834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan }; 53aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek enum { BaseBits = 2, BaseMask = 0x3 }; 541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5590e1481ef15ec75e3503e0c6e5effad5bd639f01Ted Kremenekprotected: 569c378f705405d37f49795d5e915989de774fe11fTed Kremenek const void *Data; 57834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan 58834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan /// The lowest 2 bits are a BaseKind (0 -- 3). 59834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan /// The higher bits are an unsigned "kind" value. 60a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek unsigned Kind; 611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 629c378f705405d37f49795d5e915989de774fe11fTed Kremenek explicit SVal(const void *d, bool isLoc, unsigned ValKind) 6303509aea098772644bf4662dc1c88634818ceeccZhongxing Xu : Data(d), Kind((isLoc ? LocKind : NonLocKind) | (ValKind << BaseBits)) {} 641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 659c378f705405d37f49795d5e915989de774fe11fTed Kremenek explicit SVal(BaseKind k, const void *D = NULL) 6605a2378c708688c8ef498a5cea40ed7f5db15fa5Ted Kremenek : Data(D), Kind(k) {} 671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 68a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenekpublic: 690074b48fb8ea5040de546c79be43916efe0c1f76Ted Kremenek explicit SVal() : Data(0), Kind(0) {} 707177dee8aee4b432911c91f1b788963bec0cac9fDaniel Dunbar ~SVal() {} 711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 721c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu /// BufferTy - A temporary buffer to hold a set of SVals. 73686775deca8b8685eb90801495880e3abdd844c2Chris Lattner typedef SmallVector<SVal,5> BufferTy; 741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 75aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek inline unsigned getRawKind() const { return Kind; } 76aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek inline BaseKind getBaseKind() const { return (BaseKind) (Kind & BaseMask); } 77aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek inline unsigned getSubKind() const { return (Kind & ~BaseMask) >> BaseBits; } 781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 797dfc9420babe83e236a47e752f8723bd06070d9dZhanyong Wan // This method is required for using SVal in a FoldingSetNode. It 807dfc9420babe83e236a47e752f8723bd06070d9dZhanyong Wan // extracts a unique signature for this SVal object. 81aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek inline void Profile(llvm::FoldingSetNodeID& ID) const { 82a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek ID.AddInteger((unsigned) getRawKind()); 8303509aea098772644bf4662dc1c88634818ceeccZhongxing Xu ID.AddPointer(Data); 84a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek } 856764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu 861c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu inline bool operator==(const SVal& R) const { 87aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return getRawKind() == R.getRawKind() && Data == R.Data; 88a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek } 891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 901c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu inline bool operator!=(const SVal& R) const { 91dc3936b0557ce7377905b387d3c69bc8fa484b9cTed Kremenek return !(*this == R); 92dc3936b0557ce7377905b387d3c69bc8fa484b9cTed Kremenek } 934193eca10ce0cc8b2dae887e935a43b26f492b5bZhongxing Xu 94aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek inline bool isUnknown() const { 95aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return getRawKind() == UnknownKind; 96aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 97aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 984a4e524afef40d6f3ddb25d0e407c814e4ca56a8Ted Kremenek inline bool isUndef() const { 994a4e524afef40d6f3ddb25d0e407c814e4ca56a8Ted Kremenek return getRawKind() == UndefinedKind; 100aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 101aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 1024a4e524afef40d6f3ddb25d0e407c814e4ca56a8Ted Kremenek inline bool isUnknownOrUndef() const { 103aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return getRawKind() <= UnknownKind; 104aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 1051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 106aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek inline bool isValid() const { 107aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return getRawKind() > UnknownKind; 108aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 1091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 110b10a7c235f82c6eb074be097c9ae7ee51fccc9c6Zhongxing Xu bool isConstant() const; 111b10a7c235f82c6eb074be097c9ae7ee51fccc9c6Zhongxing Xu 112db2fa8a7eb67b1e8f32a590b8e000e1259cff91aTom Care bool isConstant(int I) const; 113db2fa8a7eb67b1e8f32a590b8e000e1259cff91aTom Care 11440fc5c7e235965af368a34cdbb6d32827cd1e1d8Ted Kremenek bool isZeroConstant() const; 115369f447eded97e6048ced02c0c2be3842f61fc1cZhongxing Xu 116264e93799c891c03d60cf0b09a032b0a9935d3b5Zhongxing Xu /// hasConjuredSymbol - If this SVal wraps a conjured symbol, return true; 117264e93799c891c03d60cf0b09a032b0a9935d3b5Zhongxing Xu bool hasConjuredSymbol() const; 118264e93799c891c03d60cf0b09a032b0a9935d3b5Zhongxing Xu 119369f447eded97e6048ced02c0c2be3842f61fc1cZhongxing Xu /// getAsFunctionDecl - If this SVal is a MemRegionVal and wraps a 1201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// CodeTextRegion wrapping a FunctionDecl, return that FunctionDecl. 121369f447eded97e6048ced02c0c2be3842f61fc1cZhongxing Xu /// Otherwise return 0. 1229c378f705405d37f49795d5e915989de774fe11fTed Kremenek const FunctionDecl *getAsFunctionDecl() const; 1231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 124fc06f988da35df75e623e0c1c4e4db4d36c0b43bAnna Zaks /// If this SVal is a location (subclasses Loc) and 125fc06f988da35df75e623e0c1c4e4db4d36c0b43bAnna Zaks /// wraps a symbol, return that SymbolRef. Otherwise return 0. 12694c969804b1f98650316a8f75434b2d24dbe94eaTed Kremenek SymbolRef getAsLocSymbol() const; 1271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 128c8023788ace75cf0a0417b9b88e643ceebae91e2Zhongxing Xu /// Get the symbol in the SVal or its base region. 129c8023788ace75cf0a0417b9b88e643ceebae91e2Zhongxing Xu SymbolRef getLocSymbolInBase() const; 130c8023788ace75cf0a0417b9b88e643ceebae91e2Zhongxing Xu 131fc06f988da35df75e623e0c1c4e4db4d36c0b43bAnna Zaks /// If this SVal wraps a symbol return that SymbolRef. 132fc06f988da35df75e623e0c1c4e4db4d36c0b43bAnna Zaks /// Otherwise, return 0. 13394c969804b1f98650316a8f75434b2d24dbe94eaTed Kremenek SymbolRef getAsSymbol() const; 134e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek 135e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek /// getAsSymbolicExpression - If this Sval wraps a symbolic expression then 136e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek /// return that expression. Otherwise return NULL. 137e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek const SymExpr *getAsSymbolicExpression() const; 138edb883cabf32ef39a3f2ce7a7437894e176a740bZhongxing Xu 139edb883cabf32ef39a3f2ce7a7437894e176a740bZhongxing Xu const MemRegion *getAsRegion() const; 1401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1419c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &OS) const; 1426f9b3a4d7143362d3c2ac1f843d76971799f5b97Ted Kremenek void dump() const; 143e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek 144e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek // Iterators. 1450d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek class symbol_iterator { 146686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<const SymExpr*, 5> itr; 147e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek void expand(); 1480d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek public: 149e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek symbol_iterator() {} 1509c378f705405d37f49795d5e915989de774fe11fTed Kremenek symbol_iterator(const SymExpr *SE); 1511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1529c378f705405d37f49795d5e915989de774fe11fTed Kremenek symbol_iterator &operator++(); 153e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek SymbolRef operator*(); 1541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1559c378f705405d37f49795d5e915989de774fe11fTed Kremenek bool operator==(const symbol_iterator &X) const; 1569c378f705405d37f49795d5e915989de774fe11fTed Kremenek bool operator!=(const symbol_iterator &X) const; 1570d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek }; 1581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 159e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek symbol_iterator symbol_begin() const { 160e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek const SymExpr *SE = getAsSymbolicExpression(); 161e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek if (SE) 162e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek return symbol_iterator(SE); 163e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek else 164e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek return symbol_iterator(); 165e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek } 1661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 167e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek symbol_iterator symbol_end() const { return symbol_iterator(); } 1681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 169a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek // Implement isa<T> support. 1701c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal*) { return true; } 171a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek}; 172a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 173a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 1741c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass UndefinedVal : public SVal { 175a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenekpublic: 1761c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu UndefinedVal() : SVal(UndefinedKind) {} 1779c378f705405d37f49795d5e915989de774fe11fTed Kremenek UndefinedVal(const void *D) : SVal(UndefinedKind, D) {} 1781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1791c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 1804a4e524afef40d6f3ddb25d0e407c814e4ca56a8Ted Kremenek return V->getBaseKind() == UndefinedKind; 18105a2378c708688c8ef498a5cea40ed7f5db15fa5Ted Kremenek } 1821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1839c378f705405d37f49795d5e915989de774fe11fTed Kremenek const void *getData() const { return Data; } 184a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek}; 1851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1865b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenekclass DefinedOrUnknownSVal : public SVal { 1875b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenekprivate: 1885b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek // Do not implement. We want calling these methods to be a compiler 1895b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek // error since they are tautologically false. 1905b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek bool isUndef() const; 1915b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek bool isValid() const; 1925b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek 193c3a94151d12e3821f760e1e342f719ddeebeea19Ted Kremenekprotected: 1949c378f705405d37f49795d5e915989de774fe11fTed Kremenek explicit DefinedOrUnknownSVal(const void *d, bool isLoc, unsigned ValKind) 195c3a94151d12e3821f760e1e342f719ddeebeea19Ted Kremenek : SVal(d, isLoc, ValKind) {} 1965b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek 1975b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek explicit DefinedOrUnknownSVal(BaseKind k, void *D = NULL) 1985b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek : SVal(k, D) {} 1995b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek 2005b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenekpublic: 2015b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek // Implement isa<T> support. 2025b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek static inline bool classof(const SVal *V) { 2035b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek return !V->isUndef(); 2045b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek } 2055b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek}; 2065b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek 2075b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenekclass UnknownVal : public DefinedOrUnknownSVal { 2085b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenekpublic: 2090074b48fb8ea5040de546c79be43916efe0c1f76Ted Kremenek explicit UnknownVal() : DefinedOrUnknownSVal(UnknownKind) {} 2105b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek 2115b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek static inline bool classof(const SVal *V) { 2125b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek return V->getBaseKind() == UnknownKind; 2135b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek } 2145b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek}; 215834f9de3d3d76986d09f41725a70ba45a3e2aecdZhanyong Wan 2165b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenekclass DefinedSVal : public DefinedOrUnknownSVal { 2175b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenekprivate: 2185b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek // Do not implement. We want calling these methods to be a compiler 2195b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek // error since they are tautologically true/false. 2205b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek bool isUnknown() const; 2215b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek bool isUnknownOrUndef() const; 2225b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek bool isValid() const; 2235b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenekprotected: 2249c378f705405d37f49795d5e915989de774fe11fTed Kremenek explicit DefinedSVal(const void *d, bool isLoc, unsigned ValKind) 2255b9bd2137ebef350af803c634e3fdf5d74678100Ted Kremenek : DefinedOrUnknownSVal(d, isLoc, ValKind) {} 22608780078183ae4b2534c69a3e0ded596cdb695baTed Kremenekpublic: 227c3a94151d12e3821f760e1e342f719ddeebeea19Ted Kremenek // Implement isa<T> support. 228c3a94151d12e3821f760e1e342f719ddeebeea19Ted Kremenek static inline bool classof(const SVal *V) { 229c3a94151d12e3821f760e1e342f719ddeebeea19Ted Kremenek return !V->isUnknownOrUndef(); 2301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 231c3a94151d12e3821f760e1e342f719ddeebeea19Ted Kremenek}; 232a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 233c3a94151d12e3821f760e1e342f719ddeebeea19Ted Kremenekclass NonLoc : public DefinedSVal { 234a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenekprotected: 2359c378f705405d37f49795d5e915989de774fe11fTed Kremenek explicit NonLoc(unsigned SubKind, const void *d) 2360074b48fb8ea5040de546c79be43916efe0c1f76Ted Kremenek : DefinedSVal(d, false, SubKind) {} 2371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 238a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenekpublic: 2399c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &Out) const; 2401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 241a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek // Implement isa<T> support. 2421c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 2431c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == NonLocKind; 244a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek } 245a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek}; 246a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 247c3a94151d12e3821f760e1e342f719ddeebeea19Ted Kremenekclass Loc : public DefinedSVal { 248a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenekprotected: 2499c378f705405d37f49795d5e915989de774fe11fTed Kremenek explicit Loc(unsigned SubKind, const void *D) 250c3a94151d12e3821f760e1e342f719ddeebeea19Ted Kremenek : DefinedSVal(const_cast<void*>(D), true, SubKind) {} 251da9ae6088b9543134a6561a412b79530e290408dTed Kremenek 252cf78b6a771bb4537d5ee8fa44e718e842c2f70c7Ted Kremenekpublic: 2539c378f705405d37f49795d5e915989de774fe11fTed Kremenek void dumpToStream(raw_ostream &Out) const; 2542fdf555af136cb017f4dc0c26d5d3415d122e1ffZhongxing Xu 255c3a94151d12e3821f760e1e342f719ddeebeea19Ted Kremenek Loc(const Loc& X) : DefinedSVal(X.Data, true, X.getSubKind()) {} 2561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 257a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek // Implement isa<T> support. 2581c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 2591c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == LocKind; 260a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek } 2611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2627dfc9420babe83e236a47e752f8723bd06070d9dZhanyong Wan static inline bool isLocType(QualType T) { 263852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek return T->isAnyPointerType() || T->isBlockPointerType() || 264852274d4257134906995cb252fb3dfd2d71deae8Ted Kremenek T->isReferenceType(); 2650e470a5326ccf2f6a7c3d12b2aa54a7af2292837Ted Kremenek } 266a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek}; 2671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 268a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek//==------------------------------------------------------------------------==// 2691c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu// Subclasses of NonLoc. 2701c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu//==------------------------------------------------------------------------==// 271a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 2721c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xunamespace nonloc { 2731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 274e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenekenum Kind { ConcreteIntKind, SymbolValKind, SymExprValKind, 275a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek LocAsIntegerKind, CompoundValKind, LazyCompoundValKind }; 276329f854f217d72594a3ec5572eba6320f81a5efaTed Kremenek 2771c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass SymbolVal : public NonLoc { 278aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenekpublic: 279e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek SymbolVal(SymbolRef sym) : NonLoc(SymbolValKind, sym) {} 2801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2812dabd4372c50019fa00aae223ce634e0e754a3f2Ted Kremenek SymbolRef getSymbol() const { 282e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek return (const SymbolData*) Data; 283aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 2841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2851c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 2861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return V->getBaseKind() == NonLocKind && 287aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek V->getSubKind() == SymbolValKind; 288aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 2891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2901c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const NonLoc* V) { 291aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return V->getSubKind() == SymbolValKind; 292aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 293aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek}; 2949466aa8cf38aa8e87fe3e2cd8005fc245d04f9b7Ted Kremenek 2951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass SymExprVal : public NonLoc { 296aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenekpublic: 2970074b48fb8ea5040de546c79be43916efe0c1f76Ted Kremenek explicit SymExprVal(const SymExpr *SE) 298e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek : NonLoc(SymExprValKind, reinterpret_cast<const void*>(SE)) {} 299329f854f217d72594a3ec5572eba6320f81a5efaTed Kremenek 300e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek const SymExpr *getSymbolicExpression() const { 30103509aea098772644bf4662dc1c88634818ceeccZhongxing Xu return reinterpret_cast<const SymExpr*>(Data); 302aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 3031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3041c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 3051c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == NonLocKind && 306e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek V->getSubKind() == SymExprValKind; 307aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 3081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3091c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const NonLoc* V) { 310e0e4ebf6bfca5a71b2344d8a1b748b852509279cTed Kremenek return V->getSubKind() == SymExprValKind; 311aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 312aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek}; 313aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 3141c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass ConcreteInt : public NonLoc { 315aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenekpublic: 3160074b48fb8ea5040de546c79be43916efe0c1f76Ted Kremenek explicit ConcreteInt(const llvm::APSInt& V) : NonLoc(ConcreteIntKind, &V) {} 3171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 318aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek const llvm::APSInt& getValue() const { 31903509aea098772644bf4662dc1c88634818ceeccZhongxing Xu return *static_cast<const llvm::APSInt*>(Data); 320aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 3211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 322aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek // Transfer functions for binary/unary operations on ConcreteInts. 323c8413fd03f73084a5c93028f8b4db619fc388087Ted Kremenek SVal evalBinOp(SValBuilder &svalBuilder, BinaryOperator::Opcode Op, 3248cc13ea74fea1c04042a2f4087665bc5182e8408Ted Kremenek const ConcreteInt& R) const; 3251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 326c8413fd03f73084a5c93028f8b4db619fc388087Ted Kremenek ConcreteInt evalComplement(SValBuilder &svalBuilder) const; 3271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 328c8413fd03f73084a5c93028f8b4db619fc388087Ted Kremenek ConcreteInt evalMinus(SValBuilder &svalBuilder) const; 3291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 330aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek // Implement isa<T> support. 3311c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 3321c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == NonLocKind && 333aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek V->getSubKind() == ConcreteIntKind; 334aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 3351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3361c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const NonLoc* V) { 337aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return V->getSubKind() == ConcreteIntKind; 338aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 339aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek}; 3401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3411c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass LocAsInteger : public NonLoc { 3429ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek friend class ento::SValBuilder; 343d91ee27950ef5c321db1ac2aa5becb75ffe7cb14Zhongxing Xu 3440074b48fb8ea5040de546c79be43916efe0c1f76Ted Kremenek explicit LocAsInteger(const std::pair<SVal, uintptr_t>& data) : 3451c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu NonLoc(LocAsIntegerKind, &data) { 3461c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu assert (isa<Loc>(data.first)); 347718c4f7b3ff713c3ebee46553d687bde63e5666fTed Kremenek } 3481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3490fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenekpublic: 3501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3511c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu Loc getLoc() const { 3521c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return cast<Loc>(((std::pair<SVal, uintptr_t>*) Data)->first); 3530fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek } 3541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3551c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu const Loc& getPersistentLoc() const { 3561c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu const SVal& V = ((std::pair<SVal, uintptr_t>*) Data)->first; 3571c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return cast<Loc>(V); 3581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 3591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3600fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek unsigned getNumBits() const { 3611c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return ((std::pair<SVal, unsigned>*) Data)->second; 3620fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek } 3631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3640fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek // Implement isa<T> support. 3651c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 3661c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == NonLocKind && 3671c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu V->getSubKind() == LocAsIntegerKind; 3680fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek } 3691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3701c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const NonLoc* V) { 3711c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getSubKind() == LocAsIntegerKind; 3720fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek } 3730fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek}; 3746764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu 3756764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xuclass CompoundVal : public NonLoc { 3769ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek friend class ento::SValBuilder; 3776764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu 3780074b48fb8ea5040de546c79be43916efe0c1f76Ted Kremenek explicit CompoundVal(const CompoundValData* D) : NonLoc(CompoundValKind, D) {} 3796764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu 3806764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xupublic: 381a6fac4e446eb30ed270eff9d4084d5db5e657fcfTed Kremenek const CompoundValData* getValue() const { 38203509aea098772644bf4662dc1c88634818ceeccZhongxing Xu return static_cast<const CompoundValData*>(Data); 3836764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu } 3841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 385a6fac4e446eb30ed270eff9d4084d5db5e657fcfTed Kremenek typedef llvm::ImmutableList<SVal>::iterator iterator; 386a6fac4e446eb30ed270eff9d4084d5db5e657fcfTed Kremenek iterator begin() const; 3871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump iterator end() const; 3886764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu 3896764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu static bool classof(const SVal* V) { 3906764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu return V->getBaseKind() == NonLocKind && V->getSubKind() == CompoundValKind; 3916764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu } 3926764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu 3936764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu static bool classof(const NonLoc* V) { 3946764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu return V->getSubKind() == CompoundValKind; 3956764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu } 3966764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu}; 3971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 398a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenekclass LazyCompoundVal : public NonLoc { 3999ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek friend class ento::SValBuilder; 400a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek 4010074b48fb8ea5040de546c79be43916efe0c1f76Ted Kremenek explicit LazyCompoundVal(const LazyCompoundValData *D) 402a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek : NonLoc(LazyCompoundValKind, D) {} 403a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenekpublic: 404451ac091cd1868433985396a25cbbf2092ae8ca9Ted Kremenek const LazyCompoundValData *getCVData() const { 405451ac091cd1868433985396a25cbbf2092ae8ca9Ted Kremenek return static_cast<const LazyCompoundValData*>(Data); 406451ac091cd1868433985396a25cbbf2092ae8ca9Ted Kremenek } 407bfcaf8048d1673320de60a22ca9c297d7484b2a8Zhongxing Xu const void *getStore() const; 408a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek const TypedRegion *getRegion() const; 4091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 410a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek static bool classof(const SVal *V) { 4111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return V->getBaseKind() == NonLocKind && 412a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek V->getSubKind() == LazyCompoundValKind; 413a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek } 414a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek static bool classof(const NonLoc *V) { 415a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek return V->getSubKind() == LazyCompoundValKind; 416a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek } 417a5e81f1240bcc5b9b0721fc6275075ad7cadaf5eTed Kremenek}; 4181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4199ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek} // end namespace ento::nonloc 420516f91b0917f2aafdce1a989482d21a7224b40ecTed Kremenek 421516f91b0917f2aafdce1a989482d21a7224b40ecTed Kremenek//==------------------------------------------------------------------------==// 4221c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu// Subclasses of Loc. 4231c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu//==------------------------------------------------------------------------==// 424516f91b0917f2aafdce1a989482d21a7224b40ecTed Kremenek 4251c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xunamespace loc { 4261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42714429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidisenum Kind { GotoLabelKind, MemRegionKind, ConcreteIntKind, ObjCPropRefKind }; 428329f854f217d72594a3ec5572eba6320f81a5efaTed Kremenek 4291c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass GotoLabel : public Loc { 430aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenekpublic: 431ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner explicit GotoLabel(LabelDecl *Label) : Loc(GotoLabelKind, Label) {} 4321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 433ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner const LabelDecl *getLabel() const { 434ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner return static_cast<const LabelDecl*>(Data); 435aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 4361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4371c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 438ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner return V->getBaseKind() == LocKind && V->getSubKind() == GotoLabelKind; 439aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 4401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4411c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const Loc* V) { 442aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return V->getSubKind() == GotoLabelKind; 4431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 444aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek}; 4451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 446cf78b6a771bb4537d5ee8fa44e718e842c2f70c7Ted Kremenek 4471c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass MemRegionVal : public Loc { 448aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenekpublic: 4490074b48fb8ea5040de546c79be43916efe0c1f76Ted Kremenek explicit MemRegionVal(const MemRegion* r) : Loc(MemRegionKind, r) {} 4509e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 451993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek const MemRegion* getRegion() const { 45203509aea098772644bf4662dc1c88634818ceeccZhongxing Xu return static_cast<const MemRegion*>(Data); 453aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 4541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4557dfc9420babe83e236a47e752f8723bd06070d9dZhanyong Wan const MemRegion* stripCasts() const; 4561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 457993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek template <typename REGION> 458993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek const REGION* getRegionAs() const { 459993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek return llvm::dyn_cast<REGION>(getRegion()); 4601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 4611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4629e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek inline bool operator==(const MemRegionVal& R) const { 4639e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return getRegion() == R.getRegion(); 464aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 4651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4669e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek inline bool operator!=(const MemRegionVal& R) const { 4679e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return getRegion() != R.getRegion(); 468aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 4691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 470aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek // Implement isa<T> support. 4711c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 4721c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == LocKind && 4739e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek V->getSubKind() == MemRegionKind; 474aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 4751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4761c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const Loc* V) { 4779e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return V->getSubKind() == MemRegionKind; 4781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 479aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek}; 480aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 4811c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass ConcreteInt : public Loc { 482aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenekpublic: 4830074b48fb8ea5040de546c79be43916efe0c1f76Ted Kremenek explicit ConcreteInt(const llvm::APSInt& V) : Loc(ConcreteIntKind, &V) {} 4841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 485aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek const llvm::APSInt& getValue() const { 48603509aea098772644bf4662dc1c88634818ceeccZhongxing Xu return *static_cast<const llvm::APSInt*>(Data); 487aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 4882a502578a785d5e7ed9e08e2895dbdcfa5333c11Ted Kremenek 489aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek // Transfer functions for binary/unary operations on ConcreteInts. 4909c14953d0c84f7cf5adfb4cd3c0f05a9b1723c1cTed Kremenek SVal evalBinOp(BasicValueFactory& BasicVals, BinaryOperator::Opcode Op, 4918cc13ea74fea1c04042a2f4087665bc5182e8408Ted Kremenek const ConcreteInt& R) const; 4921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 493aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek // Implement isa<T> support. 4941c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 4951c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == LocKind && 496aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek V->getSubKind() == ConcreteIntKind; 497aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 4981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4991c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const Loc* V) { 500aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return V->getSubKind() == ConcreteIntKind; 501aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 502aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek}; 5031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 50414429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis/// \brief Pseudo-location SVal used by the ExprEngine to simulate a "load" or 50514429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis/// "store" of an ObjC property for the dot syntax. 50614429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidisclass ObjCPropRef : public Loc { 50714429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidispublic: 50814429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis explicit ObjCPropRef(const ObjCPropertyRefExpr *E) 50914429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis : Loc(ObjCPropRefKind, E) {} 51014429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis 51114429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis const ObjCPropertyRefExpr *getPropRefExpr() const { 51214429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis return static_cast<const ObjCPropertyRefExpr *>(Data); 51314429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis } 51414429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis 51514429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis // Implement isa<T> support. 51614429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis static inline bool classof(const SVal* V) { 51714429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis return V->getBaseKind() == LocKind && 51814429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis V->getSubKind() == ObjCPropRefKind; 51914429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis } 52014429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis 52114429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis static inline bool classof(const Loc* V) { 52214429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis return V->getSubKind() == ObjCPropRefKind; 52314429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis } 52414429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis}; 52514429b918bd2f4cb52abc75546a7fe37142054caArgyrios Kyrtzidis 5269ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek} // end ento::loc namespace 5275a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis} // end GR namespace 5285a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 5291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump} // end clang namespace 530a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 5316f9b3a4d7143362d3c2ac1f843d76971799f5b97Ted Kremeneknamespace llvm { 5329c378f705405d37f49795d5e915989de774fe11fTed Kremenekstatic inline raw_ostream &operator<<(raw_ostream &os, 5339ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenek clang::ento::SVal V) { 5346f9b3a4d7143362d3c2ac1f843d76971799f5b97Ted Kremenek V.dumpToStream(os); 5356f9b3a4d7143362d3c2ac1f843d76971799f5b97Ted Kremenek return os; 5366f9b3a4d7143362d3c2ac1f843d76971799f5b97Ted Kremenek} 5375a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 5386f9b3a4d7143362d3c2ac1f843d76971799f5b97Ted Kremenek} // end llvm namespace 5395a4f98ff943e6a501b0fe47ade007c9bbf96cb88Argyrios Kyrtzidis 540a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek#endif 541