ARMTargetMachine.h revision 194178 
1//===-- ARMTargetMachine.h - Define TargetMachine for ARM -------*- 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 file declares the ARM specific subclass of TargetMachine.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef ARMTARGETMACHINE_H
15#define ARMTARGETMACHINE_H
16
17#include "llvm/Target/TargetMachine.h"
18#include "llvm/Target/TargetData.h"
19#include "llvm/Target/TargetFrameInfo.h"
20#include "ARMInstrInfo.h"
21#include "ARMFrameInfo.h"
22#include "ARMJITInfo.h"
23#include "ARMSubtarget.h"
24#include "ARMISelLowering.h"
25
26namespace llvm {
27
28class Module;
29
30class ARMTargetMachine : public LLVMTargetMachine {
31  ARMSubtarget      Subtarget;
32  const TargetData  DataLayout;       // Calculates type size & alignment
33  ARMInstrInfo      InstrInfo;
34  ARMFrameInfo      FrameInfo;
35  ARMJITInfo        JITInfo;
36  ARMTargetLowering TLInfo;
37  Reloc::Model      DefRelocModel;    // Reloc model before it's overridden.
38
39protected:
40  // To avoid having target depend on the asmprinter stuff libraries, asmprinter
41  // set this functions to ctor pointer at startup time if they are linked in.
42  typedef FunctionPass *(*AsmPrinterCtorFn)(raw_ostream &o,
43                                            ARMTargetMachine &tm,
44                                            CodeGenOpt::Level OptLevel,
45                                            bool verbose);
46  static AsmPrinterCtorFn AsmPrinterCtor;
47
48public:
49  ARMTargetMachine(const Module &M, const std::string &FS, bool isThumb = false);
50
51  virtual const ARMInstrInfo     *getInstrInfo() const { return &InstrInfo; }
52  virtual const ARMFrameInfo     *getFrameInfo() const { return &FrameInfo; }
53  virtual       ARMJITInfo       *getJITInfo()         { return &JITInfo; }
54  virtual const ARMRegisterInfo  *getRegisterInfo() const {
55    return &InstrInfo.getRegisterInfo();
56  }
57  virtual const TargetData       *getTargetData() const { return &DataLayout; }
58  virtual const ARMSubtarget  *getSubtargetImpl() const { return &Subtarget; }
59  virtual       ARMTargetLowering *getTargetLowering() const {
60    return const_cast<ARMTargetLowering*>(&TLInfo);
61  }
62
63  static void registerAsmPrinter(AsmPrinterCtorFn F) {
64    AsmPrinterCtor = F;
65  }
66
67  static unsigned getModuleMatchQuality(const Module &M);
68  static unsigned getJITMatchQuality();
69
70  virtual const TargetAsmInfo *createTargetAsmInfo() const;
71
72  // Pass Pipeline Configuration
73  virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
74  virtual bool addPreRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
75  virtual bool addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
76  virtual bool addAssemblyEmitter(PassManagerBase &PM,
77                                  CodeGenOpt::Level OptLevel,
78                                  bool Verbose, raw_ostream &Out);
79  virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
80                              bool DumpAsm, MachineCodeEmitter &MCE);
81  virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
82                              bool DumpAsm, JITCodeEmitter &MCE);
83  virtual bool addSimpleCodeEmitter(PassManagerBase &PM,
84                                    CodeGenOpt::Level OptLevel,
85                                    bool DumpAsm,
86                                    MachineCodeEmitter &MCE);
87  virtual bool addSimpleCodeEmitter(PassManagerBase &PM,
88                                    CodeGenOpt::Level OptLevel,
89                                    bool DumpAsm,
90                                    JITCodeEmitter &MCE);
91};
92
93/// ThumbTargetMachine - Thumb target machine.
94///
95class ThumbTargetMachine : public ARMTargetMachine {
96public:
97  ThumbTargetMachine(const Module &M, const std::string &FS);
98
99  static unsigned getJITMatchQuality();
100  static unsigned getModuleMatchQuality(const Module &M);
101};
102
103} // end namespace llvm
104
105#endif
106