1 //===-- ARMTargetMachine.h - Define TargetMachine for ARM -------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares the ARM specific subclass of TargetMachine.
12 //===----------------------------------------------------------------------===//
14 #ifndef ARMTARGETMACHINE_H
15 #define ARMTARGETMACHINE_H
17 #include "ARMInstrInfo.h"
18 #include "ARMELFWriterInfo.h"
19 #include "ARMFrameLowering.h"
20 #include "ARMJITInfo.h"
21 #include "ARMSubtarget.h"
22 #include "ARMISelLowering.h"
23 #include "ARMSelectionDAGInfo.h"
24 #include "Thumb1InstrInfo.h"
25 #include "Thumb1FrameLowering.h"
26 #include "Thumb2InstrInfo.h"
27 #include "llvm/Target/TargetMachine.h"
28 #include "llvm/Target/TargetData.h"
29 #include "llvm/MC/MCStreamer.h"
30 #include "llvm/ADT/OwningPtr.h"
34 class ARMBaseTargetMachine : public LLVMTargetMachine {
36 ARMSubtarget Subtarget;
39 InstrItineraryData InstrItins;
40 Reloc::Model DefRelocModel; // Reloc model before it's overridden.
43 ARMBaseTargetMachine(const Target &T, const std::string &TT,
44 const std::string &CPU, const std::string &FS,
47 virtual ARMJITInfo *getJITInfo() { return &JITInfo; }
48 virtual const ARMSubtarget *getSubtargetImpl() const { return &Subtarget; }
49 virtual const InstrItineraryData *getInstrItineraryData() const {
53 // Pass Pipeline Configuration
54 virtual bool addPreISel(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
55 virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
56 virtual bool addPreRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
57 virtual bool addPreSched2(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
58 virtual bool addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
59 virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
63 /// ARMTargetMachine - ARM target machine.
65 class ARMTargetMachine : public ARMBaseTargetMachine {
66 ARMInstrInfo InstrInfo;
67 const TargetData DataLayout; // Calculates type size & alignment
68 ARMELFWriterInfo ELFWriterInfo;
69 ARMTargetLowering TLInfo;
70 ARMSelectionDAGInfo TSInfo;
71 ARMFrameLowering FrameLowering;
73 ARMTargetMachine(const Target &T, const std::string &TT,
74 const std::string &CPU, const std::string &FS);
76 virtual const ARMRegisterInfo *getRegisterInfo() const {
77 return &InstrInfo.getRegisterInfo();
80 virtual const ARMTargetLowering *getTargetLowering() const {
84 virtual const ARMSelectionDAGInfo* getSelectionDAGInfo() const {
87 virtual const ARMFrameLowering *getFrameLowering() const {
88 return &FrameLowering;
91 virtual const ARMInstrInfo *getInstrInfo() const { return &InstrInfo; }
92 virtual const TargetData *getTargetData() const { return &DataLayout; }
93 virtual const ARMELFWriterInfo *getELFWriterInfo() const {
94 return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
98 /// ThumbTargetMachine - Thumb target machine.
99 /// Due to the way architectures are handled, this represents both
100 /// Thumb-1 and Thumb-2.
102 class ThumbTargetMachine : public ARMBaseTargetMachine {
103 // Either Thumb1InstrInfo or Thumb2InstrInfo.
104 OwningPtr<ARMBaseInstrInfo> InstrInfo;
105 const TargetData DataLayout; // Calculates type size & alignment
106 ARMELFWriterInfo ELFWriterInfo;
107 ARMTargetLowering TLInfo;
108 ARMSelectionDAGInfo TSInfo;
109 // Either Thumb1FrameLowering or ARMFrameLowering.
110 OwningPtr<ARMFrameLowering> FrameLowering;
112 ThumbTargetMachine(const Target &T, const std::string &TT,
113 const std::string &CPU, const std::string &FS);
115 /// returns either Thumb1RegisterInfo or Thumb2RegisterInfo
116 virtual const ARMBaseRegisterInfo *getRegisterInfo() const {
117 return &InstrInfo->getRegisterInfo();
120 virtual const ARMTargetLowering *getTargetLowering() const {
124 virtual const ARMSelectionDAGInfo *getSelectionDAGInfo() const {
128 /// returns either Thumb1InstrInfo or Thumb2InstrInfo
129 virtual const ARMBaseInstrInfo *getInstrInfo() const {
130 return InstrInfo.get();
132 /// returns either Thumb1FrameLowering or ARMFrameLowering
133 virtual const ARMFrameLowering *getFrameLowering() const {
134 return FrameLowering.get();
136 virtual const TargetData *getTargetData() const { return &DataLayout; }
137 virtual const ARMELFWriterInfo *getELFWriterInfo() const {
138 return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
142 } // end namespace llvm