[analyzer] Rename kind-enumeration values of SVal, SymExpr, MemRegion classes, for consistency.

[NoQ]

Summary

Based on discussion in D15448.

• For every sub-class C, its kind in the relevant enumeration is CKind (or C##Kind in preprocessor-ish terms), eg:
  
  MemRegionKind -> MemRegionValKind
  
  RegionValueKind -> SymbolRegionValueKind
  
  CastSymbolKind -> SymbolCastKind
  
  SymIntKind -> SymIntExprKind

• MemSpaceRegion is now an abstract base and no longer occupies GenericMemSpaceRegionKind. Instead, a new class, CodeSpaceRegion, is introduced for handling the unique use case for MemSpaceRegion as "the generic memory space" (when it represents a memory space that holds all executable code).

• BEG_ prefixes in memory region kind ranges are renamed to BEGIN_ for consisitency with symbol kind ranges (pro: not about begging, con: two extra characters to type).

[zaks.anna]

MemSpaceRegion is now an abstract base

What prevents it from being instantiated?

[dcoughlin]

Looks good to me. Thanks for making this more consistent!

include/clang/StaticAnalyzer/Core/PathSensitive/MemRegion.h

102

While we're at it, what do you think about renaming FunctionTextRegion and BlockTextRegion to FunctionCodeRegion and BlockCodeRegion, respectively? The term 'code' is less jargony than 'text' and we already refer to BlockTextRegion as a 'code region' in BlockDataRegion.

195–196

Following up on Anna's question: does MemSpaceRegion need to be a friend of MemRegionManager now?

[NoQ]

Good point! Removed the friend-class directive here, and also in NonStaticGlobalSpaceRegion, which is also abstract.

Agreed and renamed text regions to code regions.

[dcoughlin]

Looks good to me. Please commit!

include/clang/StaticAnalyzer/Core/PathSensitive/MemRegion.h

 //===----------------------------------------------------------------------===//
 
 /// MemRegion - The root abstract class for all memory regions.
 class MemRegion : public llvm::FoldingSetNode {
   friend class MemRegionManager;
 public:
   enum Kind {
     // Memory spaces.
-    GenericMemSpaceRegionKind,
+    CodeSpaceRegionKind,
     StackLocalsSpaceRegionKind,
     StackArgumentsSpaceRegionKind,
     HeapSpaceRegionKind,
     UnknownSpaceRegionKind,
     StaticGlobalSpaceRegionKind,
     GlobalInternalSpaceRegionKind,
     GlobalSystemSpaceRegionKind,
     GlobalImmutableSpaceRegionKind,
-    BEG_NON_STATIC_GLOBAL_MEMSPACES = GlobalInternalSpaceRegionKind,
+    BEGIN_NON_STATIC_GLOBAL_MEMSPACES = GlobalInternalSpaceRegionKind,
     END_NON_STATIC_GLOBAL_MEMSPACES = GlobalImmutableSpaceRegionKind,
-    BEG_GLOBAL_MEMSPACES = StaticGlobalSpaceRegionKind,
+    BEGIN_GLOBAL_MEMSPACES = StaticGlobalSpaceRegionKind,
     END_GLOBAL_MEMSPACES = GlobalImmutableSpaceRegionKind,
-    BEG_MEMSPACES = GenericMemSpaceRegionKind,
+    BEGIN_MEMSPACES = CodeSpaceRegionKind,
     END_MEMSPACES = GlobalImmutableSpaceRegionKind,
     // Untyped regions.
     SymbolicRegionKind,
     AllocaRegionKind,
     // Typed regions.
-    BEG_TYPED_REGIONS,
-    FunctionTextRegionKind = BEG_TYPED_REGIONS,
-    BlockTextRegionKind,
+    BEGIN_TYPED_REGIONS,
+    FunctionCodeRegionKind = BEGIN_TYPED_REGIONS,
+    BlockCodeRegionKind,
     BlockDataRegionKind,
-    BEG_TYPED_VALUE_REGIONS,
-    CompoundLiteralRegionKind = BEG_TYPED_VALUE_REGIONS,
+    BEGIN_TYPED_VALUE_REGIONS,
+    CompoundLiteralRegionKind = BEGIN_TYPED_VALUE_REGIONS,
     CXXThisRegionKind,
     StringRegionKind,
     ObjCStringRegionKind,
     ElementRegionKind,
     // Decl Regions.
-    BEG_DECL_REGIONS,
-    VarRegionKind = BEG_DECL_REGIONS,
+    BEGIN_DECL_REGIONS,
+    VarRegionKind = BEGIN_DECL_REGIONS,
     FieldRegionKind,
     ObjCIvarRegionKind,
     END_DECL_REGIONS = ObjCIvarRegionKind,
     CXXTempObjectRegionKind,
     CXXBaseObjectRegionKind,
     END_TYPED_VALUE_REGIONS = CXXBaseObjectRegionKind,
     END_TYPED_REGIONS = CXXBaseObjectRegionKind
   };
public:
   template<typename RegionTy> const RegionTy* getAs() const;
 
   virtual bool isBoundable() const { return false; }
 };
 
 /// MemSpaceRegion - A memory region that represents a "memory space";
 ///  for example, the set of global variables, the stack frame, etc.
 class MemSpaceRegion : public MemRegion {
 protected:
-  friend class MemRegionManager;
-  
   MemRegionManager *Mgr;
 
-  MemSpaceRegion(MemRegionManager *mgr, Kind k = GenericMemSpaceRegionKind)
-    : MemRegion(k), Mgr(mgr) {
+  MemSpaceRegion(MemRegionManager *mgr, Kind k) : MemRegion(k), Mgr(mgr) {
     assert(classof(this));
   }
 
   MemRegionManager* getMemRegionManager() const override { return Mgr; }
 
 public:
   bool isBoundable() const override { return false; }
 
   void Profile(llvm::FoldingSetNodeID &ID) const override;
 
   static bool classof(const MemRegion *R) {
     Kind k = R->getKind();
-    return k >= BEG_MEMSPACES && k <= END_MEMSPACES;
+    return k >= BEGIN_MEMSPACES && k <= END_MEMSPACES;
+  }
+};
+
+/// CodeSpaceRegion - The memory space that holds the executable code of
+/// functions and blocks.
+class CodeSpaceRegion : public MemSpaceRegion {
+  friend class MemRegionManager;
+
+  CodeSpaceRegion(MemRegionManager *mgr)
+      : MemSpaceRegion(mgr, CodeSpaceRegionKind) {}
+
+public:
+  void dumpToStream(raw_ostream &os) const override;
+
+  static bool classof(const MemRegion *R) {
+    return R->getKind() == CodeSpaceRegionKind;
   }
 };
-  
 class GlobalsSpaceRegion : public MemSpaceRegion {
   virtual void anchor();
 protected:
   GlobalsSpaceRegion(MemRegionManager *mgr, Kind k)
     : MemSpaceRegion(mgr, k) {}
 public:
   static bool classof(const MemRegion *R) {
     Kind k = R->getKind();
-    return k >= BEG_GLOBAL_MEMSPACES && k <= END_GLOBAL_MEMSPACES;
+    return k >= BEGIN_GLOBAL_MEMSPACES && k <= END_GLOBAL_MEMSPACES;
   }
 };
 
 /// \brief The region of the static variables within the current CodeTextRegion
 /// scope.
 ///
 /// Currently, only the static locals are placed there, so we know that these
 /// variables do not get invalidated by calls to other functions.

 
 /// \brief The region for all the non-static global variables.
 ///
 /// This class is further split into subclasses for efficient implementation of
 /// invalidating a set of related global values as is done in
 /// RegionStoreManager::invalidateRegions (instead of finding all the dependent
 /// globals, we invalidate the whole parent region).
 class NonStaticGlobalSpaceRegion : public GlobalsSpaceRegion {
-  friend class MemRegionManager;
-  
 protected:
   NonStaticGlobalSpaceRegion(MemRegionManager *mgr, Kind k)
     : GlobalsSpaceRegion(mgr, k) {}
-  
 public:
 
   static bool classof(const MemRegion *R) {
     Kind k = R->getKind();
-    return k >= BEG_NON_STATIC_GLOBAL_MEMSPACES &&
+    return k >= BEGIN_NON_STATIC_GLOBAL_MEMSPACES &&
            k <= END_NON_STATIC_GLOBAL_MEMSPACES;
   }
 };
 
 /// \brief The region containing globals which are defined in system/external
 /// headers and are considered modifiable by system calls (ex: errno).
 class GlobalSystemSpaceRegion : public NonStaticGlobalSpaceRegion {
   friend class MemRegionManager;

 public:
 
   void dumpToStream(raw_ostream &os) const override;
 
   static bool classof(const MemRegion *R) {
     return R->getKind() == UnknownSpaceRegionKind;
   }
 };
-  
 class StackSpaceRegion : public MemSpaceRegion {
 private:
   const StackFrameContext *SFC;
 
 protected:
   StackSpaceRegion(MemRegionManager *mgr, Kind k, const StackFrameContext *sfc)
     : MemSpaceRegion(mgr, k), SFC(sfc) {
     assert(classof(this));
   }
 
-public:  
+public:
   const StackFrameContext *getStackFrame() const { return SFC; }
-  
   void Profile(llvm::FoldingSetNodeID &ID) const override;
 
   static bool classof(const MemRegion *R) {
     Kind k = R->getKind();
     return k >= StackLocalsSpaceRegionKind &&
            k <= StackArgumentsSpaceRegionKind;
-  }  
+  }
 };
-  
 class StackLocalsSpaceRegion : public StackSpaceRegion {
   virtual void anchor();
   friend class MemRegionManager;
   StackLocalsSpaceRegion(MemRegionManager *mgr, const StackFrameContext *sfc)
     : StackSpaceRegion(mgr, StackLocalsSpaceRegionKind, sfc) {}
 public:
 
   void dumpToStream(raw_ostream &os) const override;
public:
   QualType getDesugaredLocationType(ASTContext &Context) const {
     return getLocationType().getDesugaredType(Context);
   }
 
   bool isBoundable() const override { return true; }
 
   static bool classof(const MemRegion* R) {
     unsigned k = R->getKind();
-    return k >= BEG_TYPED_REGIONS && k <= END_TYPED_REGIONS;
+    return k >= BEGIN_TYPED_REGIONS && k <= END_TYPED_REGIONS;
   }
 };
 
 /// TypedValueRegion - An abstract class representing regions having a typed value.
 class TypedValueRegion : public TypedRegion {
 public:
   void anchor() override;
 protected:
QualType getDesugaredValueType(ASTContext &Context) const {
     QualType T = getValueType();
     return T.getTypePtrOrNull() ? T.getDesugaredType(Context) : T;
   }
 
   DefinedOrUnknownSVal getExtent(SValBuilder &svalBuilder) const override;
 
   static bool classof(const MemRegion* R) {
     unsigned k = R->getKind();
-    return k >= BEG_TYPED_VALUE_REGIONS && k <= END_TYPED_VALUE_REGIONS;
+    return k >= BEGIN_TYPED_VALUE_REGIONS && k <= END_TYPED_VALUE_REGIONS;
   }
 };
 
 
 class CodeTextRegion : public TypedRegion {
 public:
   void anchor() override;
 protected:
   CodeTextRegion(const MemRegion *sreg, Kind k) : TypedRegion(sreg, k) {}
 public:
   bool isBoundable() const override { return false; }
 
   static bool classof(const MemRegion* R) {
     Kind k = R->getKind();
-    return k >= FunctionTextRegionKind && k <= BlockTextRegionKind;
+    return k >= FunctionCodeRegionKind && k <= BlockCodeRegionKind;
   }
 };
 
-/// FunctionTextRegion - A region that represents code texts of function.
-class FunctionTextRegion : public CodeTextRegion {
+/// FunctionCodeRegion - A region that represents code texts of function.
+class FunctionCodeRegion : public CodeTextRegion {
   const NamedDecl *FD;
 public:
-  FunctionTextRegion(const NamedDecl *fd, const MemRegion* sreg)
-    : CodeTextRegion(sreg, FunctionTextRegionKind), FD(fd) {
+  FunctionCodeRegion(const NamedDecl *fd, const MemRegion* sreg)
+    : CodeTextRegion(sreg, FunctionCodeRegionKind), FD(fd) {
     assert(isa<ObjCMethodDecl>(fd) || isa<FunctionDecl>(fd));
   }
 
   QualType getLocationType() const override {
     const ASTContext &Ctx = getContext();
     if (const FunctionDecl *D = dyn_cast<FunctionDecl>(FD)) {
       return Ctx.getPointerType(D->getType());
     }
public:
   void dumpToStream(raw_ostream &os) const override;
 
   void Profile(llvm::FoldingSetNodeID& ID) const override;
 
   static void ProfileRegion(llvm::FoldingSetNodeID& ID, const NamedDecl *FD,
                             const MemRegion*);
   
   static bool classof(const MemRegion* R) {
-    return R->getKind() == FunctionTextRegionKind;
+    return R->getKind() == FunctionCodeRegionKind;
   }
 };
   
   
-/// BlockTextRegion - A region that represents code texts of blocks (closures).
-///  Blocks are represented with two kinds of regions.  BlockTextRegions
+/// BlockCodeRegion - A region that represents code texts of blocks (closures).
+///  Blocks are represented with two kinds of regions.  BlockCodeRegions
 ///  represent the "code", while BlockDataRegions represent instances of blocks,
 ///  which correspond to "code+data".  The distinction is important, because
 ///  like a closure a block captures the values of externally referenced
 ///  variables.
-class BlockTextRegion : public CodeTextRegion {
+class BlockCodeRegion : public CodeTextRegion {
   friend class MemRegionManager;
 
   const BlockDecl *BD;
   AnalysisDeclContext *AC;
   CanQualType locTy;
 
-  BlockTextRegion(const BlockDecl *bd, CanQualType lTy,
+  BlockCodeRegion(const BlockDecl *bd, CanQualType lTy,
                   AnalysisDeclContext *ac, const MemRegion* sreg)
-    : CodeTextRegion(sreg, BlockTextRegionKind), BD(bd), AC(ac), locTy(lTy) {}
+    : CodeTextRegion(sreg, BlockCodeRegionKind), BD(bd), AC(ac), locTy(lTy) {}
 
 public:
   QualType getLocationType() const override {
     return locTy;
   }
   
   const BlockDecl *getDecl() const {
     return BD;
   }
 
   AnalysisDeclContext *getAnalysisDeclContext() const { return AC; }
 
   void dumpToStream(raw_ostream &os) const override;
 
   void Profile(llvm::FoldingSetNodeID& ID) const override;
 
   static void ProfileRegion(llvm::FoldingSetNodeID& ID, const BlockDecl *BD,
                             CanQualType, const AnalysisDeclContext*,
                             const MemRegion*);
   
   static bool classof(const MemRegion* R) {
-    return R->getKind() == BlockTextRegionKind;
+    return R->getKind() == BlockCodeRegionKind;
   }
 };
   
 /// BlockDataRegion - A region that represents a block instance.
-///  Blocks are represented with two kinds of regions.  BlockTextRegions
+///  Blocks are represented with two kinds of regions.  BlockCodeRegions
 ///  represent the "code", while BlockDataRegions represent instances of blocks,
 ///  which correspond to "code+data".  The distinction is important, because
 ///  like a closure a block captures the values of externally referenced
 ///  variables.
 class BlockDataRegion : public TypedRegion {
   friend class MemRegionManager;
-  const BlockTextRegion *BC;
+  const BlockCodeRegion *BC;
   const LocationContext *LC; // Can be null */
   unsigned BlockCount;
   void *ReferencedVars;
   void *OriginalVars;
 
-  BlockDataRegion(const BlockTextRegion *bc, const LocationContext *lc,
+  BlockDataRegion(const BlockCodeRegion *bc, const LocationContext *lc,
                   unsigned count, const MemRegion *sreg)
   : TypedRegion(sreg, BlockDataRegionKind), BC(bc), LC(lc),
      BlockCount(count),
     ReferencedVars(nullptr), OriginalVars(nullptr) {}
 
 public:
-  const BlockTextRegion *getCodeRegion() const { return BC; }
+  const BlockCodeRegion *getCodeRegion() const { return BC; }
   
   const BlockDecl *getDecl() const { return BC->getDecl(); }
 
   QualType getLocationType() const override { return BC->getLocationType(); }
 
   class referenced_vars_iterator {
     const MemRegion * const *R;
     const MemRegion * const *OriginalR;
public:
       
   referenced_vars_iterator referenced_vars_begin() const;
   referenced_vars_iterator referenced_vars_end() const;  
 
   void dumpToStream(raw_ostream &os) const override;
 
   void Profile(llvm::FoldingSetNodeID& ID) const override;
 
-  static void ProfileRegion(llvm::FoldingSetNodeID&, const BlockTextRegion *,
+  static void ProfileRegion(llvm::FoldingSetNodeID&, const BlockCodeRegion *,
                             const LocationContext *, unsigned,
                             const MemRegion *);
     
   static bool classof(const MemRegion* R) {
     return R->getKind() == BlockDataRegionKind;
   }
 private:
   void LazyInitializeReferencedVars();
static void ProfileRegion(llvm::FoldingSetNodeID& ID, const Decl *D,
                       const MemRegion* superRegion, Kind k);
 
 public:
   const Decl *getDecl() const { return D; }
   void Profile(llvm::FoldingSetNodeID& ID) const override;
 
   static bool classof(const MemRegion* R) {
     unsigned k = R->getKind();
-    return k >= BEG_DECL_REGIONS && k <= END_DECL_REGIONS;
+    return k >= BEGIN_DECL_REGIONS && k <= END_DECL_REGIONS;
   }
 };
 
 class VarRegion : public DeclRegion {
   friend class MemRegionManager;
 
   // Constructors and private methods.
   VarRegion(const VarDecl *vd, const MemRegion* sReg)
llvm::DenseMap<const StackFrameContext *, StackLocalsSpaceRegion *>
     StackLocalsSpaceRegions;
   llvm::DenseMap<const StackFrameContext *, StackArgumentsSpaceRegion *>
     StackArgumentsSpaceRegions;
   llvm::DenseMap<const CodeTextRegion *, StaticGlobalSpaceRegion *>
     StaticsGlobalSpaceRegions;
 
   HeapSpaceRegion *heap;
   UnknownSpaceRegion *unknown;
-  MemSpaceRegion *code;
+  CodeSpaceRegion *code;
 
 public:
   MemRegionManager(ASTContext &c, llvm::BumpPtrAllocator &a)
     : C(c), A(a), InternalGlobals(nullptr), SystemGlobals(nullptr),
       ImmutableGlobals(nullptr), heap(nullptr), unknown(nullptr),
       code(nullptr) {}
 
   ~MemRegionManager();
const GlobalsSpaceRegion *getGlobalsRegion(
       const CodeTextRegion *R = nullptr);
 
   /// getHeapRegion - Retrieve the memory region associated with the
   ///  generic "heap".
   const HeapSpaceRegion *getHeapRegion();
 
   /// getUnknownRegion - Retrieve the memory region associated with unknown
   /// memory space.
-  const MemSpaceRegion *getUnknownRegion();
+  const UnknownSpaceRegion *getUnknownRegion();
 
-  const MemSpaceRegion *getCodeRegion();
+  const CodeSpaceRegion *getCodeRegion();
 
   /// getAllocaRegion - Retrieve a region associated with a call to alloca().
   const AllocaRegion *getAllocaRegion(const Expr *Ex, unsigned Cnt,
                                       const LocationContext *LC);
 
   /// getCompoundLiteralRegion - Retrieve the region associated with a
   ///  given CompoundLiteral.
   const CompoundLiteralRegion*
public:
   /// super region.
   const CXXBaseObjectRegion *
   getCXXBaseObjectRegionWithSuper(const CXXBaseObjectRegion *baseReg, 
                                   const MemRegion *superRegion) {
     return getCXXBaseObjectRegion(baseReg->getDecl(), superRegion,
                                   baseReg->isVirtual());
   }
 
-  const FunctionTextRegion *getFunctionTextRegion(const NamedDecl *FD);
-  const BlockTextRegion *getBlockTextRegion(const BlockDecl *BD,
+  const FunctionCodeRegion *getFunctionCodeRegion(const NamedDecl *FD);
+  const BlockCodeRegion *getBlockCodeRegion(const BlockDecl *BD,
                                             CanQualType locTy,
                                             AnalysisDeclContext *AC);
   
   /// getBlockDataRegion - Get the memory region associated with an instance
   ///  of a block.  Unlike many other MemRegions, the LocationContext*
   ///  argument is allowed to be NULL for cases where we have no known
   ///  context.
-  const BlockDataRegion *getBlockDataRegion(const BlockTextRegion *bc,
+  const BlockDataRegion *getBlockDataRegion(const BlockCodeRegion *bc,
                                             const LocationContext *lc,
                                             unsigned blockCount);
 
   /// Create a CXXTempObjectRegion for temporaries which are lifetime-extended
   /// by static references. This differs from getCXXTempObjectRegion in the
   /// super-region used.
   const CXXTempObjectRegion *getCXXStaticTempObjectRegion(const Expr *Ex);
 

include/clang/StaticAnalyzer/Core/PathSensitive/SVals.h

 
 /// SVal - This represents a symbolic expression, which can be either
 ///  an L-value or an R-value.
 ///
 class SVal {
 public:
   enum BaseKind {
     // The enumerators must be representable using 2 bits.
-    UndefinedKind = 0,  // for subclass UndefinedVal (an uninitialized value)
-    UnknownKind = 1,    // for subclass UnknownVal (a void value)
+    UndefinedValKind = 0,  // for subclass UndefinedVal (an uninitialized value)
+    UnknownValKind = 1,    // for subclass UnknownVal (a void value)
     LocKind = 2,        // for subclass Loc (an L-value)
     NonLocKind = 3      // for subclass NonLoc (an R-value that's not
                         //   an L-value)
   };
   enum { BaseBits = 2, BaseMask = 0x3 };
 
 protected:
   const void *Data;
inline bool operator==(const SVal& R) const {
     return getRawKind() == R.getRawKind() && Data == R.Data;
   }
 
   inline bool operator!=(const SVal& R) const {
     return !(*this == R);
   }
 
   inline bool isUnknown() const {
-    return getRawKind() == UnknownKind;
+    return getRawKind() == UnknownValKind;
   }
 
   inline bool isUndef() const {
-    return getRawKind() == UndefinedKind;
+    return getRawKind() == UndefinedValKind;
   }
 
   inline bool isUnknownOrUndef() const {
-    return getRawKind() <= UnknownKind;
+    return getRawKind() <= UnknownValKind;
   }
 
   inline bool isValid() const {
-    return getRawKind() > UnknownKind;
+    return getRawKind() > UnknownValKind;
   }
 
   bool isConstant() const;
 
   bool isConstant(int I) const;
 
   bool isZeroConstant() const;
 
public:
   SymExpr::symbol_iterator symbol_end() const { 
     return SymExpr::symbol_end();
   }
 };
 
 
 class UndefinedVal : public SVal {
 public:
-  UndefinedVal() : SVal(UndefinedKind) {}
+  UndefinedVal() : SVal(UndefinedValKind) {}
 
 private:
   friend class SVal;
   static bool isKind(const SVal& V) {
-    return V.getBaseKind() == UndefinedKind;
+    return V.getBaseKind() == UndefinedValKind;
   }
 };
 
 class DefinedOrUnknownSVal : public SVal {
 private:
   // We want calling these methods to be a compiler error since they are
   // tautologically false.
   bool isUndef() const = delete;
private:
   friend class SVal;
   static bool isKind(const SVal& V) {
     return !V.isUndef();
   }
 };
   
 class UnknownVal : public DefinedOrUnknownSVal {
 public:
-  explicit UnknownVal() : DefinedOrUnknownSVal(UnknownKind) {}
+  explicit UnknownVal() : DefinedOrUnknownSVal(UnknownValKind) {}
   
 private:
   friend class SVal;
   static bool isKind(const SVal &V) {
-    return V.getBaseKind() == UnknownKind;
+    return V.getBaseKind() == UnknownValKind;
   }
 };
 
 class DefinedSVal : public DefinedOrUnknownSVal {
 private:
   // We want calling these methods to be a compiler error since they are
   // tautologically true/false.
   bool isUnknown() const = delete;

 } // end namespace ento::nonloc
 
 //==------------------------------------------------------------------------==//
 //  Subclasses of Loc.
 //==------------------------------------------------------------------------==//
 
 namespace loc {
 
-enum Kind { GotoLabelKind, MemRegionKind, ConcreteIntKind };
+enum Kind { GotoLabelKind, MemRegionValKind, ConcreteIntKind };
 
 class GotoLabel : public Loc {
 public:
   explicit GotoLabel(LabelDecl *Label) : Loc(GotoLabelKind, Label) {}
 
   const LabelDecl *getLabel() const {
     return static_cast<const LabelDecl*>(Data);
   }
 
 private:
   friend class SVal;
   GotoLabel() {}
   static bool isKind(const SVal& V) {
     return V.getBaseKind() == LocKind && V.getSubKind() == GotoLabelKind;
   }
 
   static bool isKind(const Loc& V) {
     return V.getSubKind() == GotoLabelKind;
   }
 };
 
 
 class MemRegionVal : public Loc {
 public:
-  explicit MemRegionVal(const MemRegion* r) : Loc(MemRegionKind, r) {}
+  explicit MemRegionVal(const MemRegion* r) : Loc(MemRegionValKind, r) {}
 
   /// \brief Get the underlining region.
   const MemRegion* getRegion() const {
     return static_cast<const MemRegion*>(Data);
   }
 
   /// \brief Get the underlining region and strip casts.
   const MemRegion* stripCasts(bool StripBaseCasts = true) const;
inline bool operator!=(const MemRegionVal& R) const {
     return getRegion() != R.getRegion();
   }
 
 private:
   friend class SVal;
   MemRegionVal() {}
   static bool isKind(const SVal& V) {
     return V.getBaseKind() == LocKind &&
-           V.getSubKind() == MemRegionKind;
+           V.getSubKind() == MemRegionValKind;
   }
 
   static bool isKind(const Loc& V) {
-    return V.getSubKind() == MemRegionKind;
+    return V.getSubKind() == MemRegionValKind;
   }
 };
 
 class ConcreteInt : public Loc {
 public:
   explicit ConcreteInt(const llvm::APSInt& V) : Loc(ConcreteIntKind, &V) {}
 
   const llvm::APSInt& getValue() const {

include/clang/StaticAnalyzer/Core/PathSensitive/SymbolManager.h

namespace ento {
   class TypedValueRegion;
   class VarRegion;
 
 /// \brief Symbolic value. These values used to capture symbolic execution of
 /// the program.
 class SymExpr : public llvm::FoldingSetNode {
   virtual void anchor();
 public:
-  enum Kind { RegionValueKind, ConjuredKind, DerivedKind, ExtentKind,
-              MetadataKind,
-              BEGIN_SYMBOLS = RegionValueKind,
-              END_SYMBOLS = MetadataKind,
-              SymIntKind, IntSymKind, SymSymKind,
-              BEGIN_BINARYSYMEXPRS = SymIntKind,
-              END_BINARYSYMEXPRS = SymSymKind,
-              CastSymbolKind };
+  enum Kind {
+    SymbolRegionValueKind,
+    SymbolConjuredKind,
+    SymbolDerivedKind,
+    SymbolExtentKind,
+    SymbolMetadataKind,
+    BEGIN_SYMBOLS = SymbolRegionValueKind,
+    END_SYMBOLS = SymbolMetadataKind,
+    SymIntExprKind,
+    IntSymExprKind,
+    SymSymExprKind,
+    BEGIN_BINARYSYMEXPRS = SymIntExprKind,
+    END_BINARYSYMEXPRS = SymSymExprKind,
+    SymbolCastKind
+  };
+
 private:
   Kind K;
 
 protected:
   SymExpr(Kind k) : K(k) {}
 
 public:
   virtual ~SymExpr() {}

 };
 
 ///\brief A symbol representing the value stored at a MemRegion.
 class SymbolRegionValue : public SymbolData {
   const TypedValueRegion *R;
 
 public:
   SymbolRegionValue(SymbolID sym, const TypedValueRegion *r)
-    : SymbolData(RegionValueKind, sym), R(r) {}
+    : SymbolData(SymbolRegionValueKind, sym), R(r) {}
 
   const TypedValueRegion* getRegion() const { return R; }
 
   static void Profile(llvm::FoldingSetNodeID& profile, const TypedValueRegion* R) {
-    profile.AddInteger((unsigned) RegionValueKind);
+    profile.AddInteger((unsigned) SymbolRegionValueKind);
     profile.AddPointer(R);
   }
 
   void Profile(llvm::FoldingSetNodeID& profile) override {
     Profile(profile, R);
   }
 
   void dumpToStream(raw_ostream &os) const override;
 
   QualType getType() const override;
 
   // Implement isa<T> support.
   static inline bool classof(const SymExpr *SE) {
-    return SE->getKind() == RegionValueKind;
+    return SE->getKind() == SymbolRegionValueKind;
   }
 };
 
 /// A symbol representing the result of an expression in the case when we do
 /// not know anything about what the expression is.
 class SymbolConjured : public SymbolData {
   const Stmt *S;
   QualType T;
   unsigned Count;
   const LocationContext *LCtx;
   const void *SymbolTag;
 
 public:
   SymbolConjured(SymbolID sym, const Stmt *s, const LocationContext *lctx,
-     QualType t, unsigned count,
-                 const void *symbolTag)
-    : SymbolData(ConjuredKind, sym), S(s), T(t), Count(count),
-      LCtx(lctx),
-      SymbolTag(symbolTag) {}
+                 QualType t, unsigned count, const void *symbolTag)
+      : SymbolData(SymbolConjuredKind, sym), S(s), T(t), Count(count),
+        LCtx(lctx), SymbolTag(symbolTag) {}
 
   const Stmt *getStmt() const { return S; }
   unsigned getCount() const { return Count; }
   const void *getTag() const { return SymbolTag; }
 
   QualType getType() const override;
 
   void dumpToStream(raw_ostream &os) const override;
 
   static void Profile(llvm::FoldingSetNodeID& profile, const Stmt *S,
                       QualType T, unsigned Count, const LocationContext *LCtx,
                       const void *SymbolTag) {
-    profile.AddInteger((unsigned) ConjuredKind);
+    profile.AddInteger((unsigned) SymbolConjuredKind);
     profile.AddPointer(S);
     profile.AddPointer(LCtx);
     profile.Add(T);
     profile.AddInteger(Count);
     profile.AddPointer(SymbolTag);
   }
 
   void Profile(llvm::FoldingSetNodeID& profile) override {
     Profile(profile, S, T, Count, LCtx, SymbolTag);
   }
 
   // Implement isa<T> support.
   static inline bool classof(const SymExpr *SE) {
-    return SE->getKind() == ConjuredKind;
+    return SE->getKind() == SymbolConjuredKind;
   }
 };
 
 /// A symbol representing the value of a MemRegion whose parent region has
 /// symbolic value.
 class SymbolDerived : public SymbolData {
   SymbolRef parentSymbol;
   const TypedValueRegion *R;
 
 public:
   SymbolDerived(SymbolID sym, SymbolRef parent, const TypedValueRegion *r)
-    : SymbolData(DerivedKind, sym), parentSymbol(parent), R(r) {}
+    : SymbolData(SymbolDerivedKind, sym), parentSymbol(parent), R(r) {}
 
   SymbolRef getParentSymbol() const { return parentSymbol; }
   const TypedValueRegion *getRegion() const { return R; }
 
   QualType getType() const override;
 
   void dumpToStream(raw_ostream &os) const override;
 
   static void Profile(llvm::FoldingSetNodeID& profile, SymbolRef parent,
                       const TypedValueRegion *r) {
-    profile.AddInteger((unsigned) DerivedKind);
+    profile.AddInteger((unsigned) SymbolDerivedKind);
     profile.AddPointer(r);
     profile.AddPointer(parent);
   }
 
   void Profile(llvm::FoldingSetNodeID& profile) override {
     Profile(profile, parentSymbol, R);
   }
 
   // Implement isa<T> support.
   static inline bool classof(const SymExpr *SE) {
-    return SE->getKind() == DerivedKind;
+    return SE->getKind() == SymbolDerivedKind;
   }
 };
 
 /// SymbolExtent - Represents the extent (size in bytes) of a bounded region.
 ///  Clients should not ask the SymbolManager for a region's extent. Always use
 ///  SubRegion::getExtent instead -- the value returned may not be a symbol.
 class SymbolExtent : public SymbolData {
   const SubRegion *R;
   
 public:
   SymbolExtent(SymbolID sym, const SubRegion *r)
-  : SymbolData(ExtentKind, sym), R(r) {}
+  : SymbolData(SymbolExtentKind, sym), R(r) {}
 
   const SubRegion *getRegion() const { return R; }
 
   QualType getType() const override;
 
   void dumpToStream(raw_ostream &os) const override;
 
   static void Profile(llvm::FoldingSetNodeID& profile, const SubRegion *R) {
-    profile.AddInteger((unsigned) ExtentKind);
+    profile.AddInteger((unsigned) SymbolExtentKind);
     profile.AddPointer(R);
   }
 
   void Profile(llvm::FoldingSetNodeID& profile) override {
     Profile(profile, R);
   }
 
   // Implement isa<T> support.
   static inline bool classof(const SymExpr *SE) {
-    return SE->getKind() == ExtentKind;
+    return SE->getKind() == SymbolExtentKind;
   }
 };
 
 /// SymbolMetadata - Represents path-dependent metadata about a specific region.
 ///  Metadata symbols remain live as long as they are marked as in use before
 ///  dead-symbol sweeping AND their associated regions are still alive.
 ///  Intended for use by checkers.
 class SymbolMetadata : public SymbolData {
   const MemRegion* R;
   const Stmt *S;
   QualType T;
   unsigned Count;
   const void *Tag;
 public:
   SymbolMetadata(SymbolID sym, const MemRegion* r, const Stmt *s, QualType t,
                  unsigned count, const void *tag)
-  : SymbolData(MetadataKind, sym), R(r), S(s), T(t), Count(count), Tag(tag) {}
+  : SymbolData(SymbolMetadataKind, sym), R(r), S(s), T(t), Count(count), Tag(tag) {}
 
   const MemRegion *getRegion() const { return R; }
   const Stmt *getStmt() const { return S; }
   unsigned getCount() const { return Count; }
   const void *getTag() const { return Tag; }
 
   QualType getType() const override;
 
   void dumpToStream(raw_ostream &os) const override;
 
   static void Profile(llvm::FoldingSetNodeID& profile, const MemRegion *R,
                       const Stmt *S, QualType T, unsigned Count,
                       const void *Tag) {
-    profile.AddInteger((unsigned) MetadataKind);
+    profile.AddInteger((unsigned) SymbolMetadataKind);
     profile.AddPointer(R);
     profile.AddPointer(S);
     profile.Add(T);
     profile.AddInteger(Count);
     profile.AddPointer(Tag);
   }
 
   void Profile(llvm::FoldingSetNodeID& profile) override {
     Profile(profile, R, S, T, Count, Tag);
   }
 
   // Implement isa<T> support.
   static inline bool classof(const SymExpr *SE) {
-    return SE->getKind() == MetadataKind;
+    return SE->getKind() == SymbolMetadataKind;
   }
 };
 
 /// \brief Represents a cast expression.
 class SymbolCast : public SymExpr {
   const SymExpr *Operand;
   /// Type of the operand.
   QualType FromTy;
   /// The type of the result.
   QualType ToTy;
 
 public:
   SymbolCast(const SymExpr *In, QualType From, QualType To) :
-    SymExpr(CastSymbolKind), Operand(In), FromTy(From), ToTy(To) { }
+    SymExpr(SymbolCastKind), Operand(In), FromTy(From), ToTy(To) { }
 
   QualType getType() const override { return ToTy; }
 
   const SymExpr *getOperand() const { return Operand; }
 
   void dumpToStream(raw_ostream &os) const override;
 
   static void Profile(llvm::FoldingSetNodeID& ID,
                       const SymExpr *In, QualType From, QualType To) {
-    ID.AddInteger((unsigned) CastSymbolKind);
+    ID.AddInteger((unsigned) SymbolCastKind);
     ID.AddPointer(In);
     ID.Add(From);
     ID.Add(To);
   }
 
   void Profile(llvm::FoldingSetNodeID& ID) override {
     Profile(ID, Operand, FromTy, ToTy);
   }
 
   // Implement isa<T> support.
   static inline bool classof(const SymExpr *SE) {
-    return SE->getKind() == CastSymbolKind;
+    return SE->getKind() == SymbolCastKind;
   }
 };
 
 /// \brief Represents a symbolic expression involving a binary operator 
 class BinarySymExpr : public SymExpr {
   BinaryOperator::Opcode Op;
   QualType T;
 

 /// \brief Represents a symbolic expression like 'x' + 3.
 class SymIntExpr : public BinarySymExpr {
   const SymExpr *LHS;
   const llvm::APSInt& RHS;
 
 public:
   SymIntExpr(const SymExpr *lhs, BinaryOperator::Opcode op,
              const llvm::APSInt& rhs, QualType t)
-    : BinarySymExpr(SymIntKind, op, t), LHS(lhs), RHS(rhs) {}
+    : BinarySymExpr(SymIntExprKind, op, t), LHS(lhs), RHS(rhs) {}
 
   void dumpToStream(raw_ostream &os) const override;
 
   const SymExpr *getLHS() const { return LHS; }
   const llvm::APSInt &getRHS() const { return RHS; }
 
   static void Profile(llvm::FoldingSetNodeID& ID, const SymExpr *lhs,
                       BinaryOperator::Opcode op, const llvm::APSInt& rhs,
                       QualType t) {
-    ID.AddInteger((unsigned) SymIntKind);
+    ID.AddInteger((unsigned) SymIntExprKind);
     ID.AddPointer(lhs);
     ID.AddInteger(op);
     ID.AddPointer(&rhs);
     ID.Add(t);
   }
 
   void Profile(llvm::FoldingSetNodeID& ID) override {
     Profile(ID, LHS, getOpcode(), RHS, getType());
   }
 
   // Implement isa<T> support.
   static inline bool classof(const SymExpr *SE) {
-    return SE->getKind() == SymIntKind;
+    return SE->getKind() == SymIntExprKind;
   }
 };
 
 /// \brief Represents a symbolic expression like 3 - 'x'.
 class IntSymExpr : public BinarySymExpr {
   const llvm::APSInt& LHS;
   const SymExpr *RHS;
 
 public:
   IntSymExpr(const llvm::APSInt& lhs, BinaryOperator::Opcode op,
              const SymExpr *rhs, QualType t)
-    : BinarySymExpr(IntSymKind, op, t), LHS(lhs), RHS(rhs) {}
+    : BinarySymExpr(IntSymExprKind, op, t), LHS(lhs), RHS(rhs) {}
 
   void dumpToStream(raw_ostream &os) const override;
 
   const SymExpr *getRHS() const { return RHS; }
   const llvm::APSInt &getLHS() const { return LHS; }
 
   static void Profile(llvm::FoldingSetNodeID& ID, const llvm::APSInt& lhs,
                       BinaryOperator::Opcode op, const SymExpr *rhs,
                       QualType t) {
-    ID.AddInteger((unsigned) IntSymKind);
+    ID.AddInteger((unsigned) IntSymExprKind);
     ID.AddPointer(&lhs);
     ID.AddInteger(op);
     ID.AddPointer(rhs);
     ID.Add(t);
   }
 
   void Profile(llvm::FoldingSetNodeID& ID) override {
     Profile(ID, LHS, getOpcode(), RHS, getType());
   }
 
   // Implement isa<T> support.
   static inline bool classof(const SymExpr *SE) {
-    return SE->getKind() == IntSymKind;
+    return SE->getKind() == IntSymExprKind;
   }
 };
 
 /// \brief Represents a symbolic expression like 'x' + 'y'.
 class SymSymExpr : public BinarySymExpr {
   const SymExpr *LHS;
   const SymExpr *RHS;
 
 public:
   SymSymExpr(const SymExpr *lhs, BinaryOperator::Opcode op, const SymExpr *rhs,
              QualType t)
-    : BinarySymExpr(SymSymKind, op, t), LHS(lhs), RHS(rhs) {}
+    : BinarySymExpr(SymSymExprKind, op, t), LHS(lhs), RHS(rhs) {}
 
   const SymExpr *getLHS() const { return LHS; }
   const SymExpr *getRHS() const { return RHS; }
 
   void dumpToStream(raw_ostream &os) const override;
 
   static void Profile(llvm::FoldingSetNodeID& ID, const SymExpr *lhs,
                     BinaryOperator::Opcode op, const SymExpr *rhs, QualType t) {
-    ID.AddInteger((unsigned) SymSymKind);
+    ID.AddInteger((unsigned) SymSymExprKind);
     ID.AddPointer(lhs);
     ID.AddInteger(op);
     ID.AddPointer(rhs);
     ID.Add(t);
   }
 
   void Profile(llvm::FoldingSetNodeID& ID) override {
     Profile(ID, LHS, getOpcode(), RHS, getType());
   }
 
   // Implement isa<T> support.
   static inline bool classof(const SymExpr *SE) {
-    return SE->getKind() == SymSymKind;
+    return SE->getKind() == SymSymExprKind;
   }
 };
 
 class SymbolManager {
   typedef llvm::FoldingSet<SymExpr> DataSetTy;
   typedef llvm::DenseMap<SymbolRef, SymbolRefSmallVectorTy*> SymbolDependTy;
 
   DataSetTy DataSet;

lib/StaticAnalyzer/Checkers/CStringChecker.cpp

ProgramStateRef CStringChecker::InvalidateBuffer(CheckerContext &C,
   return state->killBinding(*L);
 }
 
 bool CStringChecker::SummarizeRegion(raw_ostream &os, ASTContext &Ctx,
                                      const MemRegion *MR) {
   const TypedValueRegion *TVR = dyn_cast<TypedValueRegion>(MR);
 
   switch (MR->getKind()) {
-  case MemRegion::FunctionTextRegionKind: {
-    const NamedDecl *FD = cast<FunctionTextRegion>(MR)->getDecl();
+  case MemRegion::FunctionCodeRegionKind: {
+    const NamedDecl *FD = cast<FunctionCodeRegion>(MR)->getDecl();
     if (FD)
       os << "the address of the function '" << *FD << '\'';
     else
       os << "the address of a function";
     return true;
   }
-  case MemRegion::BlockTextRegionKind:
+  case MemRegion::BlockCodeRegionKind:
     os << "block text";
     return true;
   case MemRegion::BlockDataRegionKind:
     os << "a block";
     return true;
   case MemRegion::CXXThisRegionKind:
   case MemRegion::CXXTempObjectRegionKind:
     os << "a C++ temp object of type " << TVR->getValueType().getAsString();

lib/StaticAnalyzer/Checkers/MallocChecker.cpp

else
     return false;
 
   return true;
 }
 
 bool MallocChecker::SummarizeRegion(raw_ostream &os,
                                     const MemRegion *MR) {
   switch (MR->getKind()) {
-  case MemRegion::FunctionTextRegionKind: {
-    const NamedDecl *FD = cast<FunctionTextRegion>(MR)->getDecl();
+  case MemRegion::FunctionCodeRegionKind: {
+    const NamedDecl *FD = cast<FunctionCodeRegion>(MR)->getDecl();
     if (FD)
       os << "the address of the function '" << *FD << '\'';
     else
       os << "the address of a function";
     return true;
   }
-  case MemRegion::BlockTextRegionKind:
+  case MemRegion::BlockCodeRegionKind:
     os << "block text";
     return true;
   case MemRegion::BlockDataRegionKind:
     // FIXME: where the block came from?
     os << "a block";
     return true;
   default: {
     const MemSpaceRegion *MS = MR->getMemorySpace();

lib/StaticAnalyzer/Core/MemRegion.cpp

 QualType CXXBaseObjectRegion::getValueType() const {
   return QualType(getDecl()->getTypeForDecl(), 0);
 }
 
 //===----------------------------------------------------------------------===//
 // FoldingSet profiling.
 //===----------------------------------------------------------------------===//
 
-void MemSpaceRegion::Profile(llvm::FoldingSetNodeID& ID) const {
+void MemSpaceRegion::Profile(llvm::FoldingSetNodeID &ID) const {
   ID.AddInteger((unsigned)getKind());
 }
 
 void StackSpaceRegion::Profile(llvm::FoldingSetNodeID &ID) const {
   ID.AddInteger((unsigned)getKind());
   ID.AddPointer(getStackFrame());
 }
 
void ElementRegion::ProfileRegion(llvm::FoldingSetNodeID& ID,
   ID.AddPointer(superRegion);
   Idx.Profile(ID);
 }
 
 void ElementRegion::Profile(llvm::FoldingSetNodeID& ID) const {
   ElementRegion::ProfileRegion(ID, ElementType, Index, superRegion);
 }
 
-void FunctionTextRegion::ProfileRegion(llvm::FoldingSetNodeID& ID,
+void FunctionCodeRegion::ProfileRegion(llvm::FoldingSetNodeID& ID,
                                        const NamedDecl *FD,
                                        const MemRegion*) {
-  ID.AddInteger(MemRegion::FunctionTextRegionKind);
+  ID.AddInteger(MemRegion::FunctionCodeRegionKind);
   ID.AddPointer(FD);
 }
 
-void FunctionTextRegion::Profile(llvm::FoldingSetNodeID& ID) const {
-  FunctionTextRegion::ProfileRegion(ID, FD, superRegion);
+void FunctionCodeRegion::Profile(llvm::FoldingSetNodeID& ID) const {
+  FunctionCodeRegion::ProfileRegion(ID, FD, superRegion);
 }
 
-void BlockTextRegion::ProfileRegion(llvm::FoldingSetNodeID& ID,
+void BlockCodeRegion::ProfileRegion(llvm::FoldingSetNodeID& ID,
                                     const BlockDecl *BD, CanQualType,
                                     const AnalysisDeclContext *AC,
                                     const MemRegion*) {
-  ID.AddInteger(MemRegion::BlockTextRegionKind);
+  ID.AddInteger(MemRegion::BlockCodeRegionKind);
   ID.AddPointer(BD);
 }
 
-void BlockTextRegion::Profile(llvm::FoldingSetNodeID& ID) const {
-  BlockTextRegion::ProfileRegion(ID, BD, locTy, AC, superRegion);
+void BlockCodeRegion::Profile(llvm::FoldingSetNodeID& ID) const {
+  BlockCodeRegion::ProfileRegion(ID, BD, locTy, AC, superRegion);
 }
 
 void BlockDataRegion::ProfileRegion(llvm::FoldingSetNodeID& ID,
-                                    const BlockTextRegion *BC,
+                                    const BlockCodeRegion *BC,
                                     const LocationContext *LC,
                                     unsigned BlkCount,
                                     const MemRegion *sReg) {
   ID.AddInteger(MemRegion::BlockDataRegionKind);
   ID.AddPointer(BC);
   ID.AddPointer(LC);
   ID.AddInteger(BlkCount);
   ID.AddPointer(sReg);

 void MemRegion::dumpToStream(raw_ostream &os) const {
   os << "<Unknown Region>";
 }
 
 void AllocaRegion::dumpToStream(raw_ostream &os) const {
   os << "alloca{" << (const void*) Ex << ',' << Cnt << '}';
 }
 
-void FunctionTextRegion::dumpToStream(raw_ostream &os) const {
+void FunctionCodeRegion::dumpToStream(raw_ostream &os) const {
   os << "code{" << getDecl()->getDeclName().getAsString() << '}';
 }
 
-void BlockTextRegion::dumpToStream(raw_ostream &os) const {
+void BlockCodeRegion::dumpToStream(raw_ostream &os) const {
   os << "block_code{" << (const void*) this << '}';
 }
 
 void BlockDataRegion::dumpToStream(raw_ostream &os) const {
   os << "block_data{" << BC;
   os << "; ";
   for (BlockDataRegion::referenced_vars_iterator
          I = referenced_vars_begin(),

 void RegionRawOffset::dump() const {
   dumpToStream(llvm::errs());
 }
 
 void RegionRawOffset::dumpToStream(raw_ostream &os) const {
   os << "raw_offset{" << getRegion() << ',' << getOffset().getQuantity() << '}';
 }
 
+void CodeSpaceRegion::dumpToStream(raw_ostream &os) const {
+  os << "CodeSpaceRegion";
+}
+
 void StaticGlobalSpaceRegion::dumpToStream(raw_ostream &os) const {
   os << "StaticGlobalsMemSpace{" << CR << '}';
 }
 
 void GlobalInternalSpaceRegion::dumpToStream(raw_ostream &os) const {
   os << "GlobalInternalSpaceRegion";
 }
 
*MemRegionManager::getGlobalsRegion(MemRegion::Kind K,
   new (R) StaticGlobalSpaceRegion(this, CR);
   return R;
 }
 
 const HeapSpaceRegion *MemRegionManager::getHeapRegion() {
   return LazyAllocate(heap);
 }
 
-const MemSpaceRegion *MemRegionManager::getUnknownRegion() {
+const UnknownSpaceRegion *MemRegionManager::getUnknownRegion() {
   return LazyAllocate(unknown);
 }
 
-const MemSpaceRegion *MemRegionManager::getCodeRegion() {
+const CodeSpaceRegion *MemRegionManager::getCodeRegion() {
   return LazyAllocate(code);
 }
 
 //===----------------------------------------------------------------------===//
 // Constructing regions.
 //===----------------------------------------------------------------------===//
 const StringRegion* MemRegionManager::getStringRegion(const StringLiteral* Str){
   return getSubRegion<StringRegion>(Str, getGlobalsRegion());
else {
                ? static_cast<const MemRegion*>(getStackArgumentsRegion(STC))
                : static_cast<const MemRegion*>(getStackLocalsRegion(STC));
       }
       else {
         assert(D->isStaticLocal());
         const Decl *STCD = STC->getDecl();
         if (isa<FunctionDecl>(STCD) || isa<ObjCMethodDecl>(STCD))
           sReg = getGlobalsRegion(MemRegion::StaticGlobalSpaceRegionKind,
-                                  getFunctionTextRegion(cast<NamedDecl>(STCD)));
+                                  getFunctionCodeRegion(cast<NamedDecl>(STCD)));
         else if (const BlockDecl *BD = dyn_cast<BlockDecl>(STCD)) {
           // FIXME: The fallback type here is totally bogus -- though it should
           // never be queried, it will prevent uniquing with the real
-          // BlockTextRegion. Ideally we'd fix the AST so that we always had a
+          // BlockCodeRegion. Ideally we'd fix the AST so that we always had a
           // signature.
           QualType T;
           if (const TypeSourceInfo *TSI = BD->getSignatureAsWritten())
             T = TSI->getType();
           if (T.isNull())
             T = getContext().VoidTy;
           if (!T->getAs<FunctionType>())
             T = getContext().getFunctionNoProtoType(T);
           T = getContext().getBlockPointerType(T);
 
-          const BlockTextRegion *BTR =
-            getBlockTextRegion(BD, C.getCanonicalType(T),
+          const BlockCodeRegion *BTR =
+            getBlockCodeRegion(BD, C.getCanonicalType(T),
                                STC->getAnalysisDeclContext());
           sReg = getGlobalsRegion(MemRegion::StaticGlobalSpaceRegionKind,
                                   BTR);
         }
         else {
           sReg = getGlobalsRegion();
         }
       }
     }
   }
 
   return getSubRegion<VarRegion>(D, sReg);
 }
 
 const VarRegion *MemRegionManager::getVarRegion(const VarDecl *D,
                                                 const MemRegion *superR) {
   return getSubRegion<VarRegion>(D, superR);
 }
 
 const BlockDataRegion *
-MemRegionManager::getBlockDataRegion(const BlockTextRegion *BC,
+MemRegionManager::getBlockDataRegion(const BlockCodeRegion *BC,
                                      const LocationContext *LC,
                                      unsigned blockCount) {
   const MemRegion *sReg = nullptr;
   const BlockDecl *BD = BC->getDecl();
   if (!BD->hasCaptures()) {
     // This handles 'static' blocks.
     sReg = getGlobalsRegion(MemRegion::GlobalImmutableSpaceRegionKind);
   }
if (!R) {
     R = (ElementRegion*) A.Allocate<ElementRegion>();
     new (R) ElementRegion(T, Idx, superRegion);
     Regions.InsertNode(R, InsertPos);
   }
 
   return R;
 }
 
-const FunctionTextRegion *
-MemRegionManager::getFunctionTextRegion(const NamedDecl *FD) {
-  return getSubRegion<FunctionTextRegion>(FD, getCodeRegion());
+const FunctionCodeRegion *
+MemRegionManager::getFunctionCodeRegion(const NamedDecl *FD) {
+  return getSubRegion<FunctionCodeRegion>(FD, getCodeRegion());
 }
 
-const BlockTextRegion *
-MemRegionManager::getBlockTextRegion(const BlockDecl *BD, CanQualType locTy,
+const BlockCodeRegion *
+MemRegionManager::getBlockCodeRegion(const BlockDecl *BD, CanQualType locTy,
                                      AnalysisDeclContext *AC) {
-  return getSubRegion<BlockTextRegion>(BD, locTy, AC, getCodeRegion());
+  return getSubRegion<BlockCodeRegion>(BD, locTy, AC, getCodeRegion());
 }
 
 
 /// getSymbolicRegion - Retrieve or create a "symbolic" memory region.
 const SymbolicRegion *MemRegionManager::getSymbolicRegion(SymbolRef sym) {
   return getSubRegion<SymbolicRegion>(sym, getUnknownRegion());
 }
 

 
 RegionOffset MemRegion::getAsOffset() const {
   const MemRegion *R = this;
   const MemRegion *SymbolicOffsetBase = nullptr;
   int64_t Offset = 0;
 
   while (1) {
     switch (R->getKind()) {
-    case GenericMemSpaceRegionKind:
+    case CodeSpaceRegionKind:
     case StackLocalsSpaceRegionKind:
     case StackArgumentsSpaceRegionKind:
     case HeapSpaceRegionKind:
     case UnknownSpaceRegionKind:
     case StaticGlobalSpaceRegionKind:
     case GlobalInternalSpaceRegionKind:
     case GlobalSystemSpaceRegionKind:
     case GlobalImmutableSpaceRegionKind:
       // Stores can bind directly to a region space to set a default value.
       assert(Offset == 0 && !SymbolicOffsetBase);
       goto Finish;
 
-    case FunctionTextRegionKind:
-    case BlockTextRegionKind:
+    case FunctionCodeRegionKind:
+    case BlockCodeRegionKind:
     case BlockDataRegionKind:
       // These will never have bindings, but may end up having values requested
       // if the user does some strange casting.
       if (Offset != 0)
         SymbolicOffsetBase = R;
       goto Finish;
 
     case SymbolicRegionKind:

lib/StaticAnalyzer/Core/ProgramState.cpp

bool ScanReachableSymbols::scan(const SymExpr *sym) {
   if (wasVisited)
     return true;
 
   if (!visitor.VisitSymbol(sym))
     return false;
 
   // TODO: should be rewritten using SymExpr::symbol_iterator.
   switch (sym->getKind()) {
-    case SymExpr::RegionValueKind:
-    case SymExpr::ConjuredKind:
-    case SymExpr::DerivedKind:
-    case SymExpr::ExtentKind:
-    case SymExpr::MetadataKind:
+    case SymExpr::SymbolRegionValueKind:
+    case SymExpr::SymbolConjuredKind:
+    case SymExpr::SymbolDerivedKind:
+    case SymExpr::SymbolExtentKind:
+    case SymExpr::SymbolMetadataKind:
       break;
-    case SymExpr::CastSymbolKind:
+    case SymExpr::SymbolCastKind:
       return scan(cast<SymbolCast>(sym)->getOperand());
-    case SymExpr::SymIntKind:
+    case SymExpr::SymIntExprKind:
       return scan(cast<SymIntExpr>(sym)->getLHS());
-    case SymExpr::IntSymKind:
+    case SymExpr::IntSymExprKind:
       return scan(cast<IntSymExpr>(sym)->getRHS());
-    case SymExpr::SymSymKind: {
+    case SymExpr::SymSymExprKind: {
       const SymSymExpr *x = cast<SymSymExpr>(sym);
       return scan(x->getLHS()) && scan(x->getRHS());
     }
   }
   return true;
 }
 
 bool ScanReachableSymbols::scan(SVal val) {

lib/StaticAnalyzer/Core/SValBuilder.cpp

SValBuilder::getDerivedRegionValueSymbolVal(SymbolRef parentSymbol,
 
   if (Loc::isLocType(T))
     return loc::MemRegionVal(MemMgr.getSymbolicRegion(sym));
 
   return nonloc::SymbolVal(sym);
 }
 
 DefinedSVal SValBuilder::getFunctionPointer(const FunctionDecl *func) {
-  return loc::MemRegionVal(MemMgr.getFunctionTextRegion(func));
+  return loc::MemRegionVal(MemMgr.getFunctionCodeRegion(func));
 }
 
 DefinedSVal SValBuilder::getBlockPointer(const BlockDecl *block,
                                          CanQualType locTy,
                                          const LocationContext *locContext,
                                          unsigned blockCount) {
-  const BlockTextRegion *BC =
-    MemMgr.getBlockTextRegion(block, locTy, locContext->getAnalysisDeclContext());
+  const BlockCodeRegion *BC =
+    MemMgr.getBlockCodeRegion(block, locTy, locContext->getAnalysisDeclContext());
   const BlockDataRegion *BD = MemMgr.getBlockDataRegion(BC, locContext,
                                                         blockCount);
   return loc::MemRegionVal(BD);
 }
 
 /// Return a memory region for the 'this' object reference.
 loc::MemRegionVal SValBuilder::getCXXThis(const CXXMethodDecl *D,
                                           const StackFrameContext *SFC) {

lib/StaticAnalyzer/Core/SVals.cpp

bool SVal::hasConjuredSymbol() const {
   }
 
   return false;
 }
 
 const FunctionDecl *SVal::getAsFunctionDecl() const {
   if (Optional<loc::MemRegionVal> X = getAs<loc::MemRegionVal>()) {
     const MemRegion* R = X->getRegion();
-    if (const FunctionTextRegion *CTR = R->getAs<FunctionTextRegion>())
+    if (const FunctionCodeRegion *CTR = R->getAs<FunctionCodeRegion>())
       if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(CTR->getDecl()))
         return FD;
   }
 
   return nullptr;
 }
 
 /// \brief If this SVal is a location (subclasses Loc) and wraps a symbol,

 //===----------------------------------------------------------------------===//
 // Pretty-Printing.
 //===----------------------------------------------------------------------===//
 
 void SVal::dump() const { dumpToStream(llvm::errs()); }
 
 void SVal::dumpToStream(raw_ostream &os) const {
   switch (getBaseKind()) {
-    case UnknownKind:
+    case UnknownValKind:
       os << "Unknown";
       break;
     case NonLocKind:
       castAs<NonLoc>().dumpToStream(os);
       break;
     case LocKind:
       castAs<Loc>().dumpToStream(os);
       break;
-    case UndefinedKind:
+    case UndefinedValKind:
       os << "Undefined";
       break;
   }
 }
 
 void NonLoc::dumpToStream(raw_ostream &os) const {
   switch (getSubKind()) {
     case nonloc::ConcreteIntKind: {

 void Loc::dumpToStream(raw_ostream &os) const {
   switch (getSubKind()) {
     case loc::ConcreteIntKind:
       os << castAs<loc::ConcreteInt>().getValue().getZExtValue() << " (Loc)";
       break;
     case loc::GotoLabelKind:
       os << "&&" << castAs<loc::GotoLabel>().getLabel()->getName();
       break;
-    case loc::MemRegionKind:
+    case loc::MemRegionValKind:
       os << '&' << castAs<loc::MemRegionVal>().getRegion()->getString();
       break;
     default:
       llvm_unreachable("Pretty-printing not implemented for this Loc.");
   }
 }

lib/StaticAnalyzer/Core/SimpleSValBuilder.cpp

SVal SimpleSValBuilder::evalCastFromLoc(Loc val, QualType castTy) {
   //  lifted into a union type.
   if (castTy->isUnionType())
     return UnknownVal();
 
   // Casting a Loc to a bool will almost always be true,
   // unless this is a weak function or a symbolic region.
   if (castTy->isBooleanType()) {
     switch (val.getSubKind()) {
-      case loc::MemRegionKind: {
+      case loc::MemRegionValKind: {
         const MemRegion *R = val.castAs<loc::MemRegionVal>().getRegion();
-        if (const FunctionTextRegion *FTR = dyn_cast<FunctionTextRegion>(R))
+        if (const FunctionCodeRegion *FTR = dyn_cast<FunctionCodeRegion>(R))
           if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(FTR->getDecl()))
             if (FD->isWeak())
               // FIXME: Currently we are using an extent symbol here,
               // because there are no generic region address metadata
               // symbols to use, only content metadata.
               return nonloc::SymbolVal(SymMgr.getExtentSymbol(FTR));
 
         if (const SymbolicRegion *SymR = R->getSymbolicBase())
if (lhs.isZeroConstant()) {
         return makeTruthVal(true, resultTy);
       }
     }
 
     // Comparing an arbitrary integer to a region or label address is
     // completely unknowable.
     return UnknownVal();
   }
-  case loc::MemRegionKind: {
+  case loc::MemRegionValKind: {
     if (Optional<loc::ConcreteInt> rInt = rhs.getAs<loc::ConcreteInt>()) {
       // If one of the operands is a symbol and the other is a constant,
       // build an expression for use by the constraint manager.
       if (SymbolRef lSym = lhs.getAsLocSymbol(true))
         return MakeSymIntVal(lSym, op, rInt->getValue(), resultTy);
 
       // Special case comparisons to NULL.
       // This must come after the test if the LHS is a symbol, which is used to
if (Optional<loc::ConcreteInt> rInt = rhs.getAs<loc::ConcreteInt>()) {
       }
 
       // Comparing a region to an arbitrary integer is completely unknowable.
       return UnknownVal();
     }
 
     // Get both values as regions, if possible.
     const MemRegion *LeftMR = lhs.getAsRegion();
-    assert(LeftMR && "MemRegionKind SVal doesn't have a region!");
+    assert(LeftMR && "MemRegionValKind SVal doesn't have a region!");
 
     const MemRegion *RightMR = rhs.getAsRegion();
     if (!RightMR)
       // The RHS is probably a label, which in theory could address a region.
       // FIXME: we can probably make a more useful statement about non-code
       // regions, though.
       return UnknownVal();
 

lib/StaticAnalyzer/Core/Store.cpp

if (const TypedValueRegion *TR = dyn_cast<TypedValueRegion>(R)) {
       QualType ObjTy = Ctx.getCanonicalType(TR->getValueType());
       if (CanonPointeeTy == ObjTy)
         return R;
     }
 
   // Process region cast according to the kind of the region being cast.
   switch (R->getKind()) {
     case MemRegion::CXXThisRegionKind:
-    case MemRegion::GenericMemSpaceRegionKind:
+    case MemRegion::CodeSpaceRegionKind:
     case MemRegion::StackLocalsSpaceRegionKind:
     case MemRegion::StackArgumentsSpaceRegionKind:
     case MemRegion::HeapSpaceRegionKind:
     case MemRegion::UnknownSpaceRegionKind:
     case MemRegion::StaticGlobalSpaceRegionKind:
     case MemRegion::GlobalInternalSpaceRegionKind:
     case MemRegion::GlobalSystemSpaceRegionKind:
     case MemRegion::GlobalImmutableSpaceRegionKind: {
       llvm_unreachable("Invalid region cast");
     }
 
-    case MemRegion::FunctionTextRegionKind:
-    case MemRegion::BlockTextRegionKind:
+    case MemRegion::FunctionCodeRegionKind:
+    case MemRegion::BlockCodeRegionKind:
     case MemRegion::BlockDataRegionKind:
     case MemRegion::StringRegionKind:
       // FIXME: Need to handle arbitrary downcasts.
     case MemRegion::SymbolicRegionKind:
     case MemRegion::AllocaRegionKind:
     case MemRegion::CompoundLiteralRegionKind:
     case MemRegion::FieldRegionKind:
     case MemRegion::ObjCIvarRegionKind:

 SVal StoreManager::getLValueFieldOrIvar(const Decl *D, SVal Base) {
   if (Base.isUnknownOrUndef())
     return Base;
 
   Loc BaseL = Base.castAs<Loc>();
   const MemRegion* BaseR = nullptr;
 
   switch (BaseL.getSubKind()) {
-  case loc::MemRegionKind:
+  case loc::MemRegionValKind:
     BaseR = BaseL.castAs<loc::MemRegionVal>().getRegion();
     break;
 
   case loc::GotoLabelKind:
     // These are anormal cases. Flag an undefined value.
     return UndefinedVal();
 
   case loc::ConcreteIntKind:

lib/StaticAnalyzer/Core/SymbolManager.cpp

SymbolRef SymExpr::symbol_iterator::operator*() {
   assert(!itr.empty() && "attempting to dereference an 'end' iterator");
   return itr.back();
 }
 
 void SymExpr::symbol_iterator::expand() {
   const SymExpr *SE = itr.pop_back_val();
 
   switch (SE->getKind()) {
-    case SymExpr::RegionValueKind:
-    case SymExpr::ConjuredKind:
-    case SymExpr::DerivedKind:
-    case SymExpr::ExtentKind:
-    case SymExpr::MetadataKind:
+    case SymExpr::SymbolRegionValueKind:
+    case SymExpr::SymbolConjuredKind:
+    case SymExpr::SymbolDerivedKind:
+    case SymExpr::SymbolExtentKind:
+    case SymExpr::SymbolMetadataKind:
       return;
-    case SymExpr::CastSymbolKind:
+    case SymExpr::SymbolCastKind:
       itr.push_back(cast<SymbolCast>(SE)->getOperand());
       return;
-    case SymExpr::SymIntKind:
+    case SymExpr::SymIntExprKind:
       itr.push_back(cast<SymIntExpr>(SE)->getLHS());
       return;
-    case SymExpr::IntSymKind:
+    case SymExpr::IntSymExprKind:
       itr.push_back(cast<IntSymExpr>(SE)->getRHS());
       return;
-    case SymExpr::SymSymKind: {
+    case SymExpr::SymSymExprKind: {
       const SymSymExpr *x = cast<SymSymExpr>(SE);
       itr.push_back(x->getLHS());
       itr.push_back(x->getRHS());
       return;
     }
   }
   llvm_unreachable("unhandled expansion case");
 }
bool SymbolReaper::isLive(SymbolRef sym) {
   if (TheLiving.count(sym)) {
     markDependentsLive(sym);
     return true;
   }
 
   bool KnownLive;
 
   switch (sym->getKind()) {
-  case SymExpr::RegionValueKind:
+  case SymExpr::SymbolRegionValueKind:
     KnownLive = isLiveRegion(cast<SymbolRegionValue>(sym)->getRegion());
     break;
-  case SymExpr::ConjuredKind:
+  case SymExpr::SymbolConjuredKind:
     KnownLive = false;
     break;
-  case SymExpr::DerivedKind:
+  case SymExpr::SymbolDerivedKind:
     KnownLive = isLive(cast<SymbolDerived>(sym)->getParentSymbol());
     break;
-  case SymExpr::ExtentKind:
+  case SymExpr::SymbolExtentKind:
     KnownLive = isLiveRegion(cast<SymbolExtent>(sym)->getRegion());
     break;
-  case SymExpr::MetadataKind:
+  case SymExpr::SymbolMetadataKind:
     KnownLive = MetadataInUse.count(sym) &&
                 isLiveRegion(cast<SymbolMetadata>(sym)->getRegion());
     if (KnownLive)
       MetadataInUse.erase(sym);
     break;
-  case SymExpr::SymIntKind:
+  case SymExpr::SymIntExprKind:
     KnownLive = isLive(cast<SymIntExpr>(sym)->getLHS());
     break;
-  case SymExpr::IntSymKind:
+  case SymExpr::IntSymExprKind:
     KnownLive = isLive(cast<IntSymExpr>(sym)->getRHS());
     break;
-  case SymExpr::SymSymKind:
+  case SymExpr::SymSymExprKind:
     KnownLive = isLive(cast<SymSymExpr>(sym)->getLHS()) &&
                 isLive(cast<SymSymExpr>(sym)->getRHS());
     break;
-  case SymExpr::CastSymbolKind:
+  case SymExpr::SymbolCastKind:
     KnownLive = isLive(cast<SymbolCast>(sym)->getOperand());
     break;
   }
 
   if (KnownLive)
     markLive(sym);
 
   return KnownLive;