mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-27 05:55:40 +00:00
119 lines
2.5 KiB
C++
119 lines
2.5 KiB
C++
//==- Serialize.cpp - Generic Object Serialization to Bitcode ----*- C++ -*-==//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines the internal methods used for object serialization.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Bitcode/Serialize.h"
|
|
#include "string.h"
|
|
|
|
#ifdef DEBUG_BACKPATCH
|
|
#include "llvm/Support/Streams.h"
|
|
#endif
|
|
|
|
using namespace llvm;
|
|
|
|
Serializer::Serializer(BitstreamWriter& stream)
|
|
: Stream(stream), BlockLevel(0) {}
|
|
|
|
Serializer::~Serializer() {
|
|
if (inRecord())
|
|
EmitRecord();
|
|
|
|
while (BlockLevel > 0)
|
|
Stream.ExitBlock();
|
|
|
|
Stream.FlushToWord();
|
|
}
|
|
|
|
void Serializer::EmitRecord() {
|
|
assert(Record.size() > 0 && "Cannot emit empty record.");
|
|
Stream.EmitRecord(8,Record);
|
|
Record.clear();
|
|
}
|
|
|
|
void Serializer::EnterBlock(unsigned BlockID,unsigned CodeLen) {
|
|
FlushRecord();
|
|
Stream.EnterSubblock(BlockID,CodeLen);
|
|
++BlockLevel;
|
|
}
|
|
|
|
void Serializer::ExitBlock() {
|
|
assert (BlockLevel > 0);
|
|
--BlockLevel;
|
|
FlushRecord();
|
|
Stream.ExitBlock();
|
|
}
|
|
|
|
void Serializer::EmitInt(uint64_t X) {
|
|
assert (BlockLevel > 0);
|
|
Record.push_back(X);
|
|
}
|
|
|
|
void Serializer::EmitSInt(int64_t X) {
|
|
if (X >= 0)
|
|
EmitInt(X << 1);
|
|
else
|
|
EmitInt((-X << 1) | 1);
|
|
}
|
|
|
|
void Serializer::EmitCStr(const char* s, const char* end) {
|
|
Record.push_back(end - s);
|
|
|
|
while(s != end) {
|
|
Record.push_back(*s);
|
|
++s;
|
|
}
|
|
}
|
|
|
|
void Serializer::EmitCStr(const char* s) {
|
|
EmitCStr(s,s+strlen(s));
|
|
}
|
|
|
|
SerializedPtrID Serializer::getPtrId(const void* ptr) {
|
|
if (!ptr)
|
|
return 0;
|
|
|
|
MapTy::iterator I = PtrMap.find(ptr);
|
|
|
|
if (I == PtrMap.end()) {
|
|
unsigned id = PtrMap.size()+1;
|
|
#ifdef DEBUG_BACKPATCH
|
|
llvm::cerr << "Registered PTR: " << ptr << " => " << id << "\n";
|
|
#endif
|
|
PtrMap[ptr] = id;
|
|
return id;
|
|
}
|
|
else return I->second;
|
|
}
|
|
|
|
bool Serializer::isRegistered(const void* ptr) const {
|
|
MapTy::const_iterator I = PtrMap.find(ptr);
|
|
return I != PtrMap.end();
|
|
}
|
|
|
|
|
|
#define INT_EMIT(TYPE)\
|
|
void SerializeTrait<TYPE>::Emit(Serializer&S, TYPE X) { S.EmitInt(X); }
|
|
|
|
INT_EMIT(bool)
|
|
INT_EMIT(unsigned char)
|
|
INT_EMIT(unsigned short)
|
|
INT_EMIT(unsigned int)
|
|
INT_EMIT(unsigned long)
|
|
|
|
#define SINT_EMIT(TYPE)\
|
|
void SerializeTrait<TYPE>::Emit(Serializer&S, TYPE X) { S.EmitSInt(X); }
|
|
|
|
SINT_EMIT(signed char)
|
|
SINT_EMIT(signed short)
|
|
SINT_EMIT(signed int)
|
|
SINT_EMIT(signed long)
|