TargetMachine.h revision 87f34658dec9097d987d254a990ea7f311bfc95f 
1//===- TargetMachine.h ----------------------------------------------------===//
2//
3//                     The MCLinker Project
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9#ifndef MCLD_CODEGEN_TARGETMACHINE_H
10#define MCLD_CODEGEN_TARGETMACHINE_H
11#include <llvm/Support/CodeGen.h>
12#include <string>
13
14namespace llvm {
15
16class Target;
17class TargetData;
18class TargetMachine;
19class MCContext;
20class raw_ostream;
21class formatted_raw_ostream;
22namespace legacy {
23class PassManagerBase;
24} // namepsace legacy
25} // namespace llvm
26
27namespace mcld {
28
29class Module;
30class Target;
31class FileHandle;
32class LinkerConfig;
33class ToolOutputFile;
34
35enum CodeGenFileType {
36  CGFT_ASMFile,
37  CGFT_OBJFile,
38  CGFT_DSOFile,
39  CGFT_EXEFile,
40  CGFT_PARTIAL,
41  CGFT_BINARY,
42  CGFT_NULLFile
43};
44
45
46/** \class mcld::MCLDTargetMachine
47 *  \brief mcld::MCLDTargetMachine is a object adapter of LLVMTargetMachine.
48 */
49class MCLDTargetMachine
50{
51public:
52  /// Adapter of llvm::TargetMachine
53  ///
54  MCLDTargetMachine(llvm::TargetMachine& pTM,
55                    const llvm::Target& pLLMVTarget,
56                    const mcld::Target& pMCLDTarget,
57                    const std::string& pTriple);
58
59  virtual ~MCLDTargetMachine();
60
61  /// getTarget - adapt llvm::TargetMachine::getTarget
62  const mcld::Target& getTarget() const;
63
64  /// getTM - return adapted the llvm::TargetMachine.
65  const llvm::TargetMachine& getTM() const { return m_TM; }
66  llvm::TargetMachine&       getTM()       { return m_TM; }
67
68  /// appPassesToEmitFile - The target function which we has to modify as
69  /// upstreaming.
70  bool addPassesToEmitFile(llvm::legacy::PassManagerBase &,
71                           mcld::ToolOutputFile& pOutput,
72                           mcld::CodeGenFileType,
73                           llvm::CodeGenOpt::Level,
74                           mcld::Module& pModule,
75                           mcld::LinkerConfig& pConfig,
76                           bool DisableVerify = true);
77
78private:
79  /// addCommonCodeGenPasses - Add standard LLVM codegen passes used for
80  /// both emitting to assembly files or machine code output.
81  bool addCommonCodeGenPasses(llvm::legacy::PassManagerBase &,
82                              mcld::CodeGenFileType,
83                              llvm::CodeGenOpt::Level,
84                              bool DisableVerify,
85                              llvm::MCContext *&OutCtx);
86
87  bool addCompilerPasses(llvm::legacy::PassManagerBase &pPM,
88                         llvm::formatted_raw_ostream &pOutput,
89                         llvm::MCContext *&OutCtx);
90
91  bool addAssemblerPasses(llvm::legacy::PassManagerBase &pPM,
92                          llvm::raw_ostream &pOutput,
93                          llvm::MCContext *&OutCtx);
94
95  bool addLinkerPasses(llvm::legacy::PassManagerBase &pPM,
96                       mcld::LinkerConfig& pConfig,
97                       mcld::Module& pModule,
98                       mcld::FileHandle& pFileHandle,
99                       llvm::MCContext *&OutCtx);
100
101private:
102  llvm::TargetMachine &m_TM;
103  const llvm::Target *m_pLLVMTarget;
104  const mcld::Target *m_pMCLDTarget;
105  const std::string& m_Triple;
106};
107
108} // namespace of mcld
109
110#endif
111
112