SVals.h revision a6fac4e446eb30ed270eff9d4084d5db5e657fcf
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 15a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek#ifndef LLVM_CLANG_ANALYSIS_RVALUE_H 16a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek#define LLVM_CLANG_ANALYSIS_RVALUE_H 17a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 18632e8b84976f683b365eddfacd04ea5d6f4d8cdfTed Kremenek#include "clang/Analysis/PathSensitive/SymbolManager.h" 19a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek#include "llvm/Support/Casting.h" 20632e8b84976f683b365eddfacd04ea5d6f4d8cdfTed Kremenek#include "llvm/ADT/ImmutableList.h" 21d131c4ff6133c691f91d8a82e7197d97b187425fTed Kremenek 220f10d50fe23c08f5133db0ad7269e7995ad9b172Ted Kremenek//==------------------------------------------------------------------------==// 231c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu// Base SVal types. 241c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu//==------------------------------------------------------------------------==// 25a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 260f10d50fe23c08f5133db0ad7269e7995ad9b172Ted Kremeneknamespace clang { 27632e8b84976f683b365eddfacd04ea5d6f4d8cdfTed Kremenek 28632e8b84976f683b365eddfacd04ea5d6f4d8cdfTed Kremenekclass CompoundValData; 29632e8b84976f683b365eddfacd04ea5d6f4d8cdfTed Kremenekclass BasicValueFactory; 309e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass MemRegion; 319e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekclass GRStateManager; 329e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 331c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass SVal { 34a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenekpublic: 351c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu enum BaseKind { UndefinedKind, UnknownKind, LocKind, NonLocKind }; 36aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek enum { BaseBits = 2, BaseMask = 0x3 }; 37a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 3890e1481ef15ec75e3503e0c6e5effad5bd639f01Ted Kremenekprotected: 39a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek void* Data; 40a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek unsigned Kind; 41a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 42a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenekprotected: 431c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu SVal(const void* d, bool isLoc, unsigned ValKind) 44a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek : Data(const_cast<void*>(d)), 451c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu Kind((isLoc ? LocKind : NonLocKind) | (ValKind << BaseBits)) {} 46a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 471c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu explicit SVal(BaseKind k, void* D = NULL) 4805a2378c708688c8ef498a5cea40ed7f5db15fa5Ted Kremenek : Data(D), Kind(k) {} 49a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 50a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenekpublic: 516764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu SVal() : Data(0), Kind(0) {} 521c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu ~SVal() {}; 53a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 541c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu /// BufferTy - A temporary buffer to hold a set of SVals. 551c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu typedef llvm::SmallVector<SVal,5> BufferTy; 56a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 57aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek inline unsigned getRawKind() const { return Kind; } 58aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek inline BaseKind getBaseKind() const { return (BaseKind) (Kind & BaseMask); } 59aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek inline unsigned getSubKind() const { return (Kind & ~BaseMask) >> BaseBits; } 60a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 61aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek inline void Profile(llvm::FoldingSetNodeID& ID) const { 62a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek ID.AddInteger((unsigned) getRawKind()); 63a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek ID.AddPointer(reinterpret_cast<void*>(Data)); 64a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek } 656764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu 661c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu inline bool operator==(const SVal& R) const { 67aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return getRawKind() == R.getRawKind() && Data == R.Data; 68a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek } 69a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 70dc3936b0557ce7377905b387d3c69bc8fa484b9cTed Kremenek 711c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu inline bool operator!=(const SVal& R) const { 72dc3936b0557ce7377905b387d3c69bc8fa484b9cTed Kremenek return !(*this == R); 73dc3936b0557ce7377905b387d3c69bc8fa484b9cTed Kremenek } 74dc3936b0557ce7377905b387d3c69bc8fa484b9cTed Kremenek 751c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static SVal GetSymbolValue(SymbolManager& SymMgr, VarDecl *D); 76a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 77aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek inline bool isUnknown() const { 78aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return getRawKind() == UnknownKind; 79aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 80aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 814a4e524afef40d6f3ddb25d0e407c814e4ca56a8Ted Kremenek inline bool isUndef() const { 824a4e524afef40d6f3ddb25d0e407c814e4ca56a8Ted Kremenek return getRawKind() == UndefinedKind; 83aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 84aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 854a4e524afef40d6f3ddb25d0e407c814e4ca56a8Ted Kremenek inline bool isUnknownOrUndef() const { 86aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return getRawKind() <= UnknownKind; 87aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 88cf78b6a771bb4537d5ee8fa44e718e842c2f70c7Ted Kremenek 89aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek inline bool isValid() const { 90aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return getRawKind() > UnknownKind; 91aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 92a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 9340fc5c7e235965af368a34cdbb6d32827cd1e1d8Ted Kremenek bool isZeroConstant() const; 9440fc5c7e235965af368a34cdbb6d32827cd1e1d8Ted Kremenek 95a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek void print(std::ostream& OS) const; 969012bff2ce5afc85936315662d675f2bcede1ca2Zhongxing Xu void print(llvm::raw_ostream& OS) const; 97d8e9f0dc737133d4e8342f39389064620f5a7f8fTed Kremenek void printStdErr() const; 98a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 990d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek class symbol_iterator { 1000d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek const enum { One, Many } HowMany; 1010d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek union { uintptr_t sym; const SymbolID* sptr; }; 1020d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek public: 1030d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek 1040d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek bool operator==(const symbol_iterator& X) { 1050d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek return X.sym == sym; 1060d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek } 1070d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek 1080d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek bool operator!=(const symbol_iterator& X) { 1090d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek return X.sym != sym; 1100d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek } 1110d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek 1120d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek symbol_iterator& operator++() { 1130d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek if (HowMany == Many) 1140d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek ++sptr; 1150d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek else 1160d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek sym = ~0x0; 1170d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek 1180d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek return *this; 1190d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek } 1200d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek 1210d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek SymbolID operator*() const { 1220d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek if (HowMany) 1230d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek return *sptr; 1240d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek 1250d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek return SymbolID(sym); 1260d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek } 1270d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek 1280d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek symbol_iterator(SymbolID x) : HowMany(One), sym(x.getNumber()) {} 1290d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek symbol_iterator() : HowMany(One), sym(~0x0) {} 1300d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek symbol_iterator(const SymbolID* x) : HowMany(Many), sptr(x) {} 1310d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek }; 1320d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek 13390e1481ef15ec75e3503e0c6e5effad5bd639f01Ted Kremenek symbol_iterator symbol_begin() const; 1340d958e7066db0ac2ecbce7286068db50cdb1de63Ted Kremenek symbol_iterator symbol_end() const; 13590e1481ef15ec75e3503e0c6e5effad5bd639f01Ted Kremenek 136a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek // Implement isa<T> support. 1371c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal*) { return true; } 138a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek}; 139a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 1401c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass UnknownVal : public SVal { 141a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenekpublic: 1421c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu UnknownVal() : SVal(UnknownKind) {} 143a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 1441c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 1452203118815997a0efcf19217e057bd20e33303e7Ted Kremenek return V->getBaseKind() == UnknownKind; 146a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek } 147a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek}; 148a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 1491c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass UndefinedVal : public SVal { 150a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenekpublic: 1511c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu UndefinedVal() : SVal(UndefinedKind) {} 1521c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu UndefinedVal(void* D) : SVal(UndefinedKind, D) {} 153a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 1541c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 1554a4e524afef40d6f3ddb25d0e407c814e4ca56a8Ted Kremenek return V->getBaseKind() == UndefinedKind; 15605a2378c708688c8ef498a5cea40ed7f5db15fa5Ted Kremenek } 15705a2378c708688c8ef498a5cea40ed7f5db15fa5Ted Kremenek 15805a2378c708688c8ef498a5cea40ed7f5db15fa5Ted Kremenek void* getData() const { return Data; } 159a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek}; 160a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 1611c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass NonLoc : public SVal { 162a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenekprotected: 1631c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu NonLoc(unsigned SubKind, const void* d) : SVal(d, false, SubKind) {} 164a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 165a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenekpublic: 166a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek void print(std::ostream& Out) const; 1679012bff2ce5afc85936315662d675f2bcede1ca2Zhongxing Xu void print(llvm::raw_ostream& Out) const; 168a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 1691c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu // Utility methods to create NonLocs. 1701c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static NonLoc MakeVal(BasicValueFactory& BasicVals, uint64_t X, QualType T); 171a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 1721c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static NonLoc MakeVal(BasicValueFactory& BasicVals, IntegerLiteral* I); 173a548846b471f7ca05ec6038c7d9d3b4d0de777ccTed Kremenek 1741c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static NonLoc MakeIntTruthVal(BasicValueFactory& BasicVals, bool b); 1756764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu 176632e8b84976f683b365eddfacd04ea5d6f4d8cdfTed Kremenek static NonLoc MakeCompoundVal(QualType T, llvm::ImmutableList<SVal> Vals, 1776764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu BasicValueFactory& BasicVals); 1786764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu 179a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek // Implement isa<T> support. 1801c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 1811c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == NonLocKind; 182a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek } 183a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek}; 184a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 1851c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass Loc : public SVal { 186a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenekprotected: 1871c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu Loc(unsigned SubKind, const void* D) 1881c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu : SVal(const_cast<void*>(D), true, SubKind) {} 189aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 190a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek // Equality operators. 1911c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu NonLoc EQ(BasicValueFactory& BasicVals, const Loc& R) const; 1921c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu NonLoc NE(BasicValueFactory& BasicVals, const Loc& R) const; 193a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 194cf78b6a771bb4537d5ee8fa44e718e842c2f70c7Ted Kremenekpublic: 195d131c4ff6133c691f91d8a82e7197d97b187425fTed Kremenek void print(std::ostream& Out) const; 1969012bff2ce5afc85936315662d675f2bcede1ca2Zhongxing Xu void print(llvm::raw_ostream& Out) const; 197d59cccc0b6cd4485897526699fe98514805c1883Ted Kremenek 1981c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static Loc MakeVal(AddrLabelExpr* E); 1992a502578a785d5e7ed9e08e2895dbdcfa5333c11Ted Kremenek 2001c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static Loc MakeVal(StringLiteral* S); 201a548846b471f7ca05ec6038c7d9d3b4d0de777ccTed Kremenek 202a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek // Implement isa<T> support. 2031c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 2041c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == LocKind; 205a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek } 2060e470a5326ccf2f6a7c3d12b2aa54a7af2292837Ted Kremenek 2071c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool IsLocType(QualType T) { 208dfd296bae332d10a854620c059f5d9cef98764b8Ted Kremenek return T->isPointerType() || T->isObjCQualifiedIdType() 209dfd296bae332d10a854620c059f5d9cef98764b8Ted Kremenek || T->isBlockPointerType(); 2100e470a5326ccf2f6a7c3d12b2aa54a7af2292837Ted Kremenek } 211a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek}; 212a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 213a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek//==------------------------------------------------------------------------==// 2141c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu// Subclasses of NonLoc. 2151c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu//==------------------------------------------------------------------------==// 216a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 2171c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xunamespace nonloc { 218329f854f217d72594a3ec5572eba6320f81a5efaTed Kremenek 2190fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenekenum Kind { ConcreteIntKind, SymbolValKind, SymIntConstraintValKind, 2206764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu LocAsIntegerKind, CompoundValKind }; 221329f854f217d72594a3ec5572eba6320f81a5efaTed Kremenek 2221c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass SymbolVal : public NonLoc { 223aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenekpublic: 224aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek SymbolVal(unsigned SymID) 2251c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu : NonLoc(SymbolValKind, reinterpret_cast<void*>((uintptr_t) SymID)) {} 226aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 227aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek SymbolID getSymbol() const { 228aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return (SymbolID) reinterpret_cast<uintptr_t>(Data); 229aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 230aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 2311c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 2321c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == NonLocKind && 233aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek V->getSubKind() == SymbolValKind; 234aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 235aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 2361c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const NonLoc* V) { 237aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return V->getSubKind() == SymbolValKind; 238aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 239aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek}; 2409466aa8cf38aa8e87fe3e2cd8005fc245d04f9b7Ted Kremenek 2411c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass SymIntConstraintVal : public NonLoc { 242aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenekpublic: 243aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek SymIntConstraintVal(const SymIntConstraint& C) 2441c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu : NonLoc(SymIntConstraintValKind, reinterpret_cast<const void*>(&C)) {} 245329f854f217d72594a3ec5572eba6320f81a5efaTed Kremenek 246aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek const SymIntConstraint& getConstraint() const { 247aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return *reinterpret_cast<SymIntConstraint*>(Data); 248aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 249aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 2501c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 2511c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == NonLocKind && 252aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek V->getSubKind() == SymIntConstraintValKind; 253aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 254aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 2551c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const NonLoc* V) { 256aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return V->getSubKind() == SymIntConstraintValKind; 257aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 258aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek}; 259aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 2601c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass ConcreteInt : public NonLoc { 261aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenekpublic: 2621c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu ConcreteInt(const llvm::APSInt& V) : NonLoc(ConcreteIntKind, &V) {} 263aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 264aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek const llvm::APSInt& getValue() const { 265aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return *static_cast<llvm::APSInt*>(Data); 266aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 267aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 268aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek // Transfer functions for binary/unary operations on ConcreteInts. 2691c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu SVal EvalBinOp(BasicValueFactory& BasicVals, BinaryOperator::Opcode Op, 2708cc13ea74fea1c04042a2f4087665bc5182e8408Ted Kremenek const ConcreteInt& R) const; 271aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 272240f1f00dda1d481276ea872fe8f8851581a7e6bTed Kremenek ConcreteInt EvalComplement(BasicValueFactory& BasicVals) const; 273aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 274240f1f00dda1d481276ea872fe8f8851581a7e6bTed Kremenek ConcreteInt EvalMinus(BasicValueFactory& BasicVals, UnaryOperator* U) const; 275aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 276aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek // Implement isa<T> support. 2771c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 2781c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == NonLocKind && 279aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek V->getSubKind() == ConcreteIntKind; 280aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 281aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 2821c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const NonLoc* V) { 283aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return V->getSubKind() == ConcreteIntKind; 284aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 285aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek}; 286a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 2871c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass LocAsInteger : public NonLoc { 2881c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu LocAsInteger(const std::pair<SVal, uintptr_t>& data) : 2891c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu NonLoc(LocAsIntegerKind, &data) { 2901c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu assert (isa<Loc>(data.first)); 291718c4f7b3ff713c3ebee46553d687bde63e5666fTed Kremenek } 2920fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek 2930fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenekpublic: 2940fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek 2951c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu Loc getLoc() const { 2961c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return cast<Loc>(((std::pair<SVal, uintptr_t>*) Data)->first); 2970fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek } 2980fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek 2991c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu const Loc& getPersistentLoc() const { 3001c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu const SVal& V = ((std::pair<SVal, uintptr_t>*) Data)->first; 3011c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return cast<Loc>(V); 3020fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek } 3030fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek 3040fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek unsigned getNumBits() const { 3051c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return ((std::pair<SVal, unsigned>*) Data)->second; 3060fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek } 3070fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek 3080fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek // Implement isa<T> support. 3091c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 3101c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == NonLocKind && 3111c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu V->getSubKind() == LocAsIntegerKind; 3120fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek } 3130fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek 3141c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const NonLoc* V) { 3151c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getSubKind() == LocAsIntegerKind; 3160fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek } 3170fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek 318632e8b84976f683b365eddfacd04ea5d6f4d8cdfTed Kremenek static LocAsInteger Make(BasicValueFactory& Vals, Loc V, unsigned Bits); 3190fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek}; 3206764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu 3216764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xuclass CompoundVal : public NonLoc { 3226764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu friend class NonLoc; 3236764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu 3246764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu CompoundVal(const CompoundValData* D) : NonLoc(CompoundValKind, D) {} 3256764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu 3266764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xupublic: 327a6fac4e446eb30ed270eff9d4084d5db5e657fcfTed Kremenek const CompoundValData* getValue() const { 3286764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu return static_cast<CompoundValData*>(Data); 3296764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu } 330a6fac4e446eb30ed270eff9d4084d5db5e657fcfTed Kremenek 331a6fac4e446eb30ed270eff9d4084d5db5e657fcfTed Kremenek typedef llvm::ImmutableList<SVal>::iterator iterator; 332a6fac4e446eb30ed270eff9d4084d5db5e657fcfTed Kremenek iterator begin() const; 333a6fac4e446eb30ed270eff9d4084d5db5e657fcfTed Kremenek iterator end() const; 3346764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu 3356764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu static bool classof(const SVal* V) { 3366764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu return V->getBaseKind() == NonLocKind && V->getSubKind() == CompoundValKind; 3376764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu } 3386764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu 3396764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu static bool classof(const NonLoc* V) { 3406764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu return V->getSubKind() == CompoundValKind; 3416764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu } 3426764b72f6f26b5c03471b9e379a44d379d2d4a9eZhongxing Xu}; 3430fe33bc94a822e315585e5cde1964d3c3b9052f9Ted Kremenek 3441c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu} // end namespace clang::nonloc 345516f91b0917f2aafdce1a989482d21a7224b40ecTed Kremenek 346516f91b0917f2aafdce1a989482d21a7224b40ecTed Kremenek//==------------------------------------------------------------------------==// 3471c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu// Subclasses of Loc. 3481c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu//==------------------------------------------------------------------------==// 349516f91b0917f2aafdce1a989482d21a7224b40ecTed Kremenek 3501c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xunamespace loc { 351516f91b0917f2aafdce1a989482d21a7224b40ecTed Kremenek 3529e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenekenum Kind { SymbolValKind, GotoLabelKind, MemRegionKind, FuncValKind, 353197fa58ab40e3fee2137715e96d9bb1c59340837Zhongxing Xu ConcreteIntKind }; 354aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 3551c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass SymbolVal : public Loc { 356aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenekpublic: 357aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek SymbolVal(unsigned SymID) 3581c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu : Loc(SymbolValKind, reinterpret_cast<void*>((uintptr_t) SymID)) {} 3592a502578a785d5e7ed9e08e2895dbdcfa5333c11Ted Kremenek 360aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek SymbolID getSymbol() const { 361aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return (SymbolID) reinterpret_cast<uintptr_t>(Data); 362aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 363aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 3641c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 3651c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == LocKind && 366aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek V->getSubKind() == SymbolValKind; 367aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 368aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 3691c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const Loc* V) { 370aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return V->getSubKind() == SymbolValKind; 371aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 372aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek}; 373329f854f217d72594a3ec5572eba6320f81a5efaTed Kremenek 3741c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass GotoLabel : public Loc { 375aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenekpublic: 3761c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu GotoLabel(LabelStmt* Label) : Loc(GotoLabelKind, Label) {} 377aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 378aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek LabelStmt* getLabel() const { 379aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return static_cast<LabelStmt*>(Data); 380aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 381aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 3821c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 3831c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == LocKind && 384aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek V->getSubKind() == GotoLabelKind; 385aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 386aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 3871c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const Loc* V) { 388aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return V->getSubKind() == GotoLabelKind; 389aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 390aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek}; 391aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 392cf78b6a771bb4537d5ee8fa44e718e842c2f70c7Ted Kremenek 3931c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass MemRegionVal : public Loc { 394aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenekpublic: 3951c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu MemRegionVal(const MemRegion* r) : Loc(MemRegionKind, r) {} 3969e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek 397993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek const MemRegion* getRegion() const { 3989e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return static_cast<MemRegion*>(Data); 399aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 400aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 401993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek template <typename REGION> 402993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek const REGION* getRegionAs() const { 403993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek return llvm::dyn_cast<REGION>(getRegion()); 404993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek } 405993f1c72913417be7c534ec7a634363cdfc84fa5Ted Kremenek 4069e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek inline bool operator==(const MemRegionVal& R) const { 4079e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return getRegion() == R.getRegion(); 408aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 409aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 4109e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek inline bool operator!=(const MemRegionVal& R) const { 4119e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return getRegion() != R.getRegion(); 412aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 413aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 414aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek // Implement isa<T> support. 4151c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 4161c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == LocKind && 4179e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek V->getSubKind() == MemRegionKind; 418aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 419aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 4201c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const Loc* V) { 4219e24049bef26b6289cce9ac9b483c5cbb096e3aeTed Kremenek return V->getSubKind() == MemRegionKind; 422aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 423aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek}; 424aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 4251c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass FuncVal : public Loc { 426aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenekpublic: 4271c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu FuncVal(const FunctionDecl* fd) : Loc(FuncValKind, fd) {} 428aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 429aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek FunctionDecl* getDecl() const { 430aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return static_cast<FunctionDecl*>(Data); 431aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 432aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 433aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek inline bool operator==(const FuncVal& R) const { 434aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return getDecl() == R.getDecl(); 435aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 436aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 437aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek inline bool operator!=(const FuncVal& R) const { 438aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return getDecl() != R.getDecl(); 439aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 440aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 441aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek // Implement isa<T> support. 4421c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 4431c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == LocKind && 444aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek V->getSubKind() == FuncValKind; 445aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 446aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 4471c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const Loc* V) { 448aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return V->getSubKind() == FuncValKind; 449aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 450aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek}; 451aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 4521c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xuclass ConcreteInt : public Loc { 453aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenekpublic: 4541c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu ConcreteInt(const llvm::APSInt& V) : Loc(ConcreteIntKind, &V) {} 455aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 456aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek const llvm::APSInt& getValue() const { 457aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return *static_cast<llvm::APSInt*>(Data); 458aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 4592a502578a785d5e7ed9e08e2895dbdcfa5333c11Ted Kremenek 460aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek // Transfer functions for binary/unary operations on ConcreteInts. 4611c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu SVal EvalBinOp(BasicValueFactory& BasicVals, BinaryOperator::Opcode Op, 4628cc13ea74fea1c04042a2f4087665bc5182e8408Ted Kremenek const ConcreteInt& R) const; 463aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 464aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek // Implement isa<T> support. 4651c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const SVal* V) { 4661c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu return V->getBaseKind() == LocKind && 467aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek V->getSubKind() == ConcreteIntKind; 468aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 469aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 4701c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu static inline bool classof(const Loc* V) { 471aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek return V->getSubKind() == ConcreteIntKind; 472aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek } 473aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek}; 474aa1c4e5a6b87b62d991c55a0d4522bcd778068d7Ted Kremenek 4751c96b24285d05c0eac455ae96d7c9ff43d42bc96Zhongxing Xu} // end clang::loc namespace 476a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek} // end clang namespace 477a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek 478a90ccfe03ce62f4c33cbb96982947cf474b4fae4Ted Kremenek#endif 479