ARMTargetMachine.h revision 42ceb47150b2d423f9668c7b128b90927ac22cb0 
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                                            bool fast, bool verbose);
45  static AsmPrinterCtorFn AsmPrinterCtor;
46
47public:
48  ARMTargetMachine(const Module &M, const std::string &FS, bool isThumb = false);
49
50  virtual const ARMInstrInfo     *getInstrInfo() const { return &InstrInfo; }
51  virtual const ARMFrameInfo     *getFrameInfo() const { return &FrameInfo; }
52  virtual       ARMJITInfo       *getJITInfo()         { return &JITInfo; }
53  virtual const ARMRegisterInfo  *getRegisterInfo() const {
54    return &InstrInfo.getRegisterInfo();
55  }
56  virtual const TargetData       *getTargetData() const { return &DataLayout; }
57  virtual const ARMSubtarget  *getSubtargetImpl() const { return &Subtarget; }
58  virtual       ARMTargetLowering *getTargetLowering() const {
59    return const_cast<ARMTargetLowering*>(&TLInfo);
60  }
61
62  static void registerAsmPrinter(AsmPrinterCtorFn F) {
63    AsmPrinterCtor = F;
64  }
65
66  static unsigned getModuleMatchQuality(const Module &M);
67  static unsigned getJITMatchQuality();
68
69  virtual const TargetAsmInfo *createTargetAsmInfo() const;
70
71  // Pass Pipeline Configuration
72  virtual bool addInstSelector(PassManagerBase &PM, bool Fast);
73  virtual bool addPreEmitPass(PassManagerBase &PM, bool Fast);
74  virtual bool addAssemblyEmitter(PassManagerBase &PM, bool Fast,
75                                  bool Verbose, raw_ostream &Out);
76  virtual bool addCodeEmitter(PassManagerBase &PM, bool Fast,
77                              bool DumpAsm, MachineCodeEmitter &MCE);
78  virtual bool addSimpleCodeEmitter(PassManagerBase &PM, bool Fast,
79                                    bool DumpAsm, MachineCodeEmitter &MCE);
80};
81
82/// ThumbTargetMachine - Thumb target machine.
83///
84class ThumbTargetMachine : public ARMTargetMachine {
85public:
86  ThumbTargetMachine(const Module &M, const std::string &FS);
87
88  static unsigned getJITMatchQuality();
89  static unsigned getModuleMatchQuality(const Module &M);
90};
91
92} // end namespace llvm
93
94#endif
95