BitReader_3_0.h revision 8a019dd0040bedf5078e4d18e06a244a675b80e8 
1//===- BitReader_3_0.h - Internal BitcodeReader 3.0 impl --------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This header defines the BitcodeReader class.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef BITREADER_3_0_H
15#define BITREADER_3_0_H
16
17#include "llvm/ADT/DenseMap.h"
18#include "llvm/Bitcode/BitstreamReader.h"
19#include "llvm/Bitcode/LLVMBitCodes.h"
20#include "llvm/IR/Attributes.h"
21#include "llvm/IR/DiagnosticInfo.h"
22#include "llvm/IR/GVMaterializer.h"
23#include "llvm/IR/OperandTraits.h"
24#include "llvm/IR/Type.h"
25#include "llvm/IR/ValueHandle.h"
26#include "llvm/Support/ErrorOr.h"
27#include <string>
28
29namespace llvm {
30  class LLVMContext;
31  class MemoryBuffer;
32  class MemoryBufferRef;
33  class Module;
34} // End llvm namespace
35
36namespace llvm_3_0 {
37
38using llvm::DiagnosticHandlerFunction;
39using llvm::LLVMContext;
40using llvm::MemoryBuffer;
41using llvm::MemoryBufferRef;
42
43
44  /// Read the header of the specified bitcode buffer and prepare for lazy
45  /// deserialization of function bodies.  If successful, this moves Buffer. On
46  /// error, this *does not* move Buffer.
47  llvm::ErrorOr<llvm::Module *>
48  getLazyBitcodeModule(std::unique_ptr<MemoryBuffer> &&Buffer,
49                       LLVMContext &Context,
50                       const DiagnosticHandlerFunction &DiagnosticHandler = nullptr);
51
52  /// Read the header of the specified bitcode buffer and extract just the
53  /// triple information. If successful, this returns a string. On error, this
54  /// returns "".
55  std::string
56  getBitcodeTargetTriple(MemoryBufferRef Buffer, LLVMContext &Context,
57                         DiagnosticHandlerFunction DiagnosticHandler = nullptr);
58
59  /// Read the specified bitcode file, returning the module.
60  llvm::ErrorOr<llvm::Module *>
61  parseBitcodeFile(MemoryBufferRef Buffer, LLVMContext &Context,
62                   const DiagnosticHandlerFunction &DiagnosticHandler = nullptr);
63} // End llvm_3_0 namespace
64
65#endif
66