//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Ted Kremenek and is distributed under the
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
namespace llvm {
class Deserializer {
- BitstreamReader& Stream;
- SmallVector<uint64_t,10> Record;
- unsigned RecIdx;
- BumpPtrAllocator Allocator;
-
- struct PtrIdInfo {
- static inline unsigned getEmptyKey() { return ~((unsigned) 0x0); }
- static inline unsigned getTombstoneKey() { return getEmptyKey()-1; }
- static inline unsigned getHashValue(unsigned X) { return X; }
- static inline bool isEqual(unsigned X, unsigned Y) { return X == Y; }
- static inline bool isPod() { return true; }
- };
+
+ //===----------------------------------------------------------===//
+ // Internal type definitions.
+ //===----------------------------------------------------------===//
- struct BPatchNode {
- BPatchNode* const Next;
+ struct BPNode {
+ BPNode* Next;
uintptr_t& PtrRef;
- BPatchNode(BPatchNode* n, void*& pref)
- : Next(n), PtrRef(reinterpret_cast<uintptr_t&>(pref)) {
+
+ BPNode(BPNode* n, uintptr_t& pref)
+ : Next(n), PtrRef(pref) {
PtrRef = 0;
}
};
- struct BPatchEntry {
- BPatchNode* Head;
- void* Ptr;
- BPatchEntry() : Head(NULL), Ptr(NULL) {}
+ struct BPEntry {
+ union { BPNode* Head; void* Ptr; };
+
+ BPEntry() : Head(NULL) {}
+
static inline bool isPod() { return true; }
+
+ void SetPtr(BPNode*& FreeList, void* P);
};
- typedef llvm::DenseMap<unsigned,BPatchEntry,PtrIdInfo,BPatchEntry> MapTy;
+ class BPKey {
+ unsigned Raw;
+
+ public:
+ BPKey(SerializedPtrID PtrId) : Raw(PtrId << 1) { assert (PtrId > 0); }
+ BPKey(unsigned code, unsigned) : Raw(code) {}
+
+ void MarkFinal() { Raw |= 0x1; }
+ bool hasFinalPtr() const { return Raw & 0x1 ? true : false; }
+ SerializedPtrID getID() const { return Raw >> 1; }
+
+ static inline BPKey getEmptyKey() { return BPKey(0,0); }
+ static inline BPKey getTombstoneKey() { return BPKey(1,0); }
+ static inline unsigned getHashValue(const BPKey& K) { return K.Raw & ~0x1; }
+
+ static bool isEqual(const BPKey& K1, const BPKey& K2) {
+ return (K1.Raw ^ K2.Raw) & ~0x1 ? false : true;
+ }
+
+ static bool isPod() { return true; }
+ };
+
+ typedef llvm::DenseMap<BPKey,BPEntry,BPKey,BPEntry> MapTy;
- MapTy BPatchMap;
+ //===----------------------------------------------------------===//
+ // Publicly visible types.
+ //===----------------------------------------------------------===//
-public:
+public:
+ struct Location {
+ uint64_t BitNo;
+ unsigned BlockID;
+ unsigned NumWords;
+
+ Location(uint64_t bit, unsigned bid, unsigned words)
+ : BitNo(bit), BlockID(bid), NumWords(words) {}
+
+ Location() : BitNo(0), BlockID(0), NumWords(0) {}
+
+ Location& operator=(Location& RHS) {
+ BitNo = RHS.BitNo;
+ BlockID = RHS.BlockID;
+ NumWords = RHS.NumWords;
+ return *this;
+ }
+
+ bool operator==(const Location& RHS) const { return BitNo == RHS.BitNo; }
+ bool operator!=(const Location& RHS) const { return BitNo != RHS.BitNo; }
+
+ bool contains(const Location& RHS) const {
+ if (RHS.BitNo < BitNo)
+ return false;
+
+ if ((RHS.BitNo - BitNo) >> 5 < NumWords)
+ return true;
+
+ return false;
+ }
+ };
+
+ //===----------------------------------------------------------===//
+ // Internal data members.
+ //===----------------------------------------------------------===//
+
+private:
+ BitstreamReader& Stream;
+ SmallVector<uint64_t,20> Record;
+ unsigned RecIdx;
+ BumpPtrAllocator Allocator;
+ BPNode* FreeList;
+ MapTy BPatchMap;
+ llvm::SmallVector<Location,8> BlockStack;
+ unsigned AbbrevNo;
+ unsigned RecordCode;
+ uint64_t StreamStart;
+
+ //===----------------------------------------------------------===//
+ // Public Interface.
+ //===----------------------------------------------------------===//
+
+public:
Deserializer(BitstreamReader& stream);
~Deserializer();
uint64_t ReadInt();
+ int64_t ReadSInt();
+ SerializedPtrID ReadPtrID() { return (SerializedPtrID) ReadInt(); }
+
+
bool ReadBool() {
return ReadInt() ? true : false;
}
SerializeTrait<T>::Read(*this,X);
return X;
}
-
- template <typename T>
- inline T ReadVal() {
- return SerializeTrait<T>::ReadVal(*this);
- }
template <typename T>
- inline T* Materialize() {
- return SerializeTrait<T>::Materialize(*this);
+ inline T* Create() {
+ return SerializeTrait<T>::Create(*this);
}
char* ReadCStr(char* cstr = NULL, unsigned MaxLen=0, bool isNullTerm=true);
- void ReadCStr(std::vector<char>& buff, bool isNullTerm=false);
+ void ReadCStr(std::vector<char>& buff, bool isNullTerm=false, unsigned Idx=0);
template <typename T>
- inline T* ReadOwnedPtr() {
- unsigned PtrId = ReadInt();
+ inline T* ReadOwnedPtr(bool AutoRegister = true) {
+ SerializedPtrID PtrID = ReadPtrID();
- if (PtrId == 0)
+ if (!PtrID)
return NULL;
- T* x = SerializeTrait<T>::Materialize(*this);
- RegisterPtr(PtrId,x);
+ T* x = SerializeTrait<T>::Create(*this);
+
+ if (AutoRegister)
+ RegisterPtr(PtrID,x);
+
+ return x;
+ }
+
+ template <typename T, typename Arg1>
+ inline T* ReadOwnedPtr(Arg1& arg1, bool AutoRegister = true) {
+ SerializedPtrID PtrID = ReadPtrID();
+
+ if (!PtrID)
+ return NULL;
+
+ T* x = SerializeTrait<T>::Create(*this, arg1);
+
+ if (AutoRegister)
+ RegisterPtr(PtrID,x);
+
return x;
}
+
+ template <typename T>
+ inline void ReadOwnedPtr(T*& Ptr, bool AutoRegister = true) {
+ Ptr = ReadOwnedPtr<T>(AutoRegister);
+ }
- void ReadPtr(void*& PtrRef);
- void ReadPtr(uintptr_t& PtrRef) { ReadPtr(reinterpret_cast<void*&>(PtrRef)); }
+ template <typename T1, typename T2>
+ void BatchReadOwnedPtrs(T1*& P1, T2*& P2,
+ bool A1=true, bool A2=true) {
+
+ SerializedPtrID ID1 = ReadPtrID();
+ SerializedPtrID ID2 = ReadPtrID();
+
+ P1 = (ID1) ? SerializeTrait<T1>::Create(*this) : NULL;
+ if (ID1 && A1) RegisterPtr(ID1,P1);
+
+ P2 = (ID2) ? SerializeTrait<T2>::Create(*this) : NULL;
+ if (ID2 && A2) RegisterPtr(ID2,P2);
+ }
+
+ template <typename T1, typename T2, typename Arg1>
+ void BatchReadOwnedPtrs(T1*& P1, T2*& P2, Arg1& arg1,
+ bool A1=true, bool A2=true) {
+
+ SerializedPtrID ID1 = ReadPtrID();
+ SerializedPtrID ID2 = ReadPtrID();
+
+ P1 = (ID1) ? SerializeTrait<T1>::Create(*this, arg1) : NULL;
+ if (ID1 && A1) RegisterPtr(ID1,P1);
+
+ P2 = (ID2) ? SerializeTrait<T2>::Create(*this, arg1) : NULL;
+ if (ID2 && A2) RegisterPtr(ID2,P2);
+ }
+
+ template <typename T1, typename T2, typename T3>
+ void BatchReadOwnedPtrs(T1*& P1, T2*& P2, T3*& P3,
+ bool A1=true, bool A2=true, bool A3=true) {
+
+ SerializedPtrID ID1 = ReadPtrID();
+ SerializedPtrID ID2 = ReadPtrID();
+ SerializedPtrID ID3 = ReadPtrID();
+
+ P1 = (ID1) ? SerializeTrait<T1>::Create(*this) : NULL;
+ if (ID1 && A1) RegisterPtr(ID1,P1);
+
+ P2 = (ID2) ? SerializeTrait<T2>::Create(*this) : NULL;
+ if (ID2 && A2) RegisterPtr(ID2,P2);
+
+ P3 = (ID3) ? SerializeTrait<T3>::Create(*this) : NULL;
+ if (ID3 && A3) RegisterPtr(ID3,P3);
+ }
+
+ template <typename T1, typename T2, typename T3, typename Arg1>
+ void BatchReadOwnedPtrs(T1*& P1, T2*& P2, T3*& P3, Arg1& arg1,
+ bool A1=true, bool A2=true, bool A3=true) {
+
+ SerializedPtrID ID1 = ReadPtrID();
+ SerializedPtrID ID2 = ReadPtrID();
+ SerializedPtrID ID3 = ReadPtrID();
+
+ P1 = (ID1) ? SerializeTrait<T1>::Create(*this, arg1) : NULL;
+ if (ID1 && A1) RegisterPtr(ID1,P1);
+
+ P2 = (ID2) ? SerializeTrait<T2>::Create(*this, arg1) : NULL;
+ if (ID2 && A2) RegisterPtr(ID2,P2);
+
+ P3 = (ID3) ? SerializeTrait<T3>::Create(*this, arg1) : NULL;
+ if (ID3 && A3) RegisterPtr(ID3,P3);
+ }
+
+ template <typename T>
+ void BatchReadOwnedPtrs(unsigned NumPtrs, T** Ptrs, bool AutoRegister=true) {
+ llvm::SmallVector<SerializedPtrID,10> BatchIDVec;
+
+ for (unsigned i = 0; i < NumPtrs; ++i)
+ BatchIDVec.push_back(ReadPtrID());
+
+ for (unsigned i = 0; i < NumPtrs; ++i) {
+ SerializedPtrID& PtrID = BatchIDVec[i];
+
+ T* p = PtrID ? SerializeTrait<T>::Create(*this) : NULL;
+
+ if (PtrID && AutoRegister)
+ RegisterPtr(PtrID,p);
+
+ Ptrs[i] = p;
+ }
+ }
- void RegisterPtr(unsigned PtrId, void* Ptr);
+ template <typename T, typename Arg1>
+ void BatchReadOwnedPtrs(unsigned NumPtrs, T** Ptrs, Arg1& arg1,
+ bool AutoRegister=true) {
+ llvm::SmallVector<SerializedPtrID,10> BatchIDVec;
- void BackpatchPointers();
-private:
- void ReadRecord();
+ for (unsigned i = 0; i < NumPtrs; ++i)
+ BatchIDVec.push_back(ReadPtrID());
+
+ for (unsigned i = 0; i < NumPtrs; ++i) {
+ SerializedPtrID& PtrID = BatchIDVec[i];
+
+ T* p = PtrID ? SerializeTrait<T>::Create(*this, arg1) : NULL;
+
+ if (PtrID && AutoRegister)
+ RegisterPtr(PtrID,p);
+
+ Ptrs[i] = p;
+ }
+ }
+
+ template <typename T1, typename T2>
+ void BatchReadOwnedPtrs(unsigned NumT1Ptrs, T1** Ptrs, T2*& P2,
+ bool A1=true, bool A2=true) {
+
+ llvm::SmallVector<SerializedPtrID,10> BatchIDVec;
+
+ for (unsigned i = 0; i < NumT1Ptrs; ++i)
+ BatchIDVec.push_back(ReadPtrID());
+
+ SerializedPtrID ID2 = ReadPtrID();
+
+ for (unsigned i = 0; i < NumT1Ptrs; ++i) {
+ SerializedPtrID& PtrID = BatchIDVec[i];
+
+ T1* p = PtrID ? SerializeTrait<T1>::Create(*this) : NULL;
+
+ if (PtrID && A1)
+ RegisterPtr(PtrID,p);
+
+ Ptrs[i] = p;
+ }
+
+ P2 = (ID2) ? SerializeTrait<T2>::Create(*this) : NULL;
+ if (ID2 && A2) RegisterPtr(ID2,P2);
+ }
+
+ template <typename T1, typename T2, typename Arg1>
+ void BatchReadOwnedPtrs(unsigned NumT1Ptrs, T1** Ptrs, T2*& P2, Arg1& arg1,
+ bool A1=true, bool A2=true) {
+
+ llvm::SmallVector<SerializedPtrID,10> BatchIDVec;
+
+ for (unsigned i = 0; i < NumT1Ptrs; ++i)
+ BatchIDVec.push_back(ReadPtrID());
+
+ SerializedPtrID ID2 = ReadPtrID();
+
+ for (unsigned i = 0; i < NumT1Ptrs; ++i) {
+ SerializedPtrID& PtrID = BatchIDVec[i];
+
+ T1* p = PtrID ? SerializeTrait<T1>::Create(*this, arg1) : NULL;
+
+ if (PtrID && A1)
+ RegisterPtr(PtrID,p);
+
+ Ptrs[i] = p;
+ }
+
+ P2 = (ID2) ? SerializeTrait<T2>::Create(*this, arg1) : NULL;
+ if (ID2 && A2) RegisterPtr(ID2,P2);
+ }
+
+ template <typename T1, typename T2, typename T3>
+ void BatchReadOwnedPtrs(unsigned NumT1Ptrs, T1** Ptrs,
+ T2*& P2, T3*& P3,
+ bool A1=true, bool A2=true, bool A3=true) {
+
+ llvm::SmallVector<SerializedPtrID,10> BatchIDVec;
+
+ for (unsigned i = 0; i < NumT1Ptrs; ++i)
+ BatchIDVec.push_back(ReadPtrID());
+
+ SerializedPtrID ID2 = ReadPtrID();
+ SerializedPtrID ID3 = ReadPtrID();
+
+ for (unsigned i = 0; i < NumT1Ptrs; ++i) {
+ SerializedPtrID& PtrID = BatchIDVec[i];
+
+ T1* p = PtrID ? SerializeTrait<T1>::Create(*this) : NULL;
+
+ if (PtrID && A1)
+ RegisterPtr(PtrID,p);
+
+ Ptrs[i] = p;
+ }
+
+ P2 = (ID2) ? SerializeTrait<T2>::Create(*this) : NULL;
+ if (ID2 && A2) RegisterPtr(ID2,P2);
+
+ P3 = (ID3) ? SerializeTrait<T3>::Create(*this) : NULL;
+ if (ID3 && A3) RegisterPtr(ID3,P3);
+ }
+
+ template <typename T1, typename T2, typename T3, typename Arg1>
+ void BatchReadOwnedPtrs(unsigned NumT1Ptrs, T1** Ptrs,
+ T2*& P2, T3*& P3, Arg1& arg1,
+ bool A1=true, bool A2=true, bool A3=true) {
+
+ llvm::SmallVector<SerializedPtrID,10> BatchIDVec;
+
+ for (unsigned i = 0; i < NumT1Ptrs; ++i)
+ BatchIDVec.push_back(ReadPtrID());
+
+ SerializedPtrID ID2 = ReadPtrID();
+ SerializedPtrID ID3 = ReadPtrID();
+
+ for (unsigned i = 0; i < NumT1Ptrs; ++i) {
+ SerializedPtrID& PtrID = BatchIDVec[i];
+
+ T1* p = PtrID ? SerializeTrait<T1>::Create(*this, arg1) : NULL;
+
+ if (PtrID && A1)
+ RegisterPtr(PtrID,p);
+
+ Ptrs[i] = p;
+ }
+
+ P2 = (ID2) ? SerializeTrait<T2>::Create(*this, arg1) : NULL;
+ if (ID2 && A2) RegisterPtr(ID2,P2);
+
+ P3 = (ID3) ? SerializeTrait<T3>::Create(*this, arg1) : NULL;
+ if (ID3 && A3) RegisterPtr(ID3,P3);
+ }
+
+ template <typename T>
+ void ReadPtr(T*& PtrRef, bool AllowBackpatch = true) {
+ ReadUIntPtr(reinterpret_cast<uintptr_t&>(PtrRef), AllowBackpatch);
+ }
+
+ template <typename T>
+ void ReadPtr(const T*& PtrRef, bool AllowBackpatch = true) {
+ ReadPtr(const_cast<T*&>(PtrRef), AllowBackpatch);
+ }
+
+
+ template <typename T>
+ void ReadPtr(T*& PtrRef, const SerializedPtrID& PtrID,
+ bool AllowBackpatch = true) {
+ ReadUIntPtr(reinterpret_cast<uintptr_t&>(PtrRef), PtrID, AllowBackpatch);
+ }
+
+ template <typename T>
+ void ReadPtr(const T*& PtrRef, const SerializedPtrID& PtrID,
+ bool AllowBackpatch = true) {
+
+ ReadPtr(const_cast<T*&>(PtrRef), PtrID, AllowBackpatch);
+ }
+
+ template <typename T>
+ T* ReadPtr() { T* x = 0; ReadPtr<T>(x,false); return x; }
+
+ void ReadUIntPtr(uintptr_t& PtrRef, const SerializedPtrID& PtrID,
+ bool AllowBackpatch = true);
+
+ void ReadUIntPtr(uintptr_t& PtrRef, bool AllowBackpatch = true) {
+ ReadUIntPtr(PtrRef,ReadPtrID(),AllowBackpatch);
+ }
+
+ template <typename T>
+ T& ReadRef() {
+ T* p = reinterpret_cast<T*>(ReadInternalRefPtr());
+ return *p;
+ }
+
+ void RegisterPtr(const SerializedPtrID& PtrID, const void* Ptr);
+
+ void RegisterPtr(const void* Ptr) {
+ RegisterPtr(ReadPtrID(),Ptr);
+ }
+
+ template<typename T>
+ void RegisterRef(const T& x) {
+ RegisterPtr(&x);
+ }
+
+ template<typename T>
+ void RegisterRef(const SerializedPtrID& PtrID, const T& x) {
+ RegisterPtr(PtrID,&x);
+ }
+
+ Location getCurrentBlockLocation();
+ unsigned getCurrentBlockID();
+ unsigned getAbbrevNo();
+
+ bool FinishedBlock(Location BlockLoc);
+ bool JumpTo(const Location& BlockLoc);
+ void Rewind();
+
+ bool AtEnd();
bool inRecord();
+ void SkipBlock();
+ bool SkipToBlock(unsigned BlockID);
+
+ unsigned getRecordCode();
+
+ BitstreamReader& getStream() { return Stream; }
+
+private:
+ bool AdvanceStream();
+ void ReadRecord();
+
+ uintptr_t ReadInternalRefPtr();
+
+ static inline bool HasFinalPtr(MapTy::value_type& V) {
+ return V.first.hasFinalPtr();
+ }
+
+ static inline uintptr_t GetFinalPtr(MapTy::value_type& V) {
+ return reinterpret_cast<uintptr_t>(V.second.Ptr);
+ }
+
+ static inline BPNode* GetBPNode(MapTy::value_type& V) {
+ return V.second.Head;
+ }
+
+ static inline void SetBPNode(MapTy::value_type& V, BPNode* N) {
+ V.second.Head = N;
+ }
+
+ void SetPtr(MapTy::value_type& V, const void* P) {
+ V.first.MarkFinal();
+ V.second.SetPtr(FreeList,const_cast<void*>(P));
+ }
};
} // end namespace llvm
projects / oota-llvm.git / blobdiff