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 "llvm/Target/TargetMachine.h"
18 #include "llvm/Target/TargetData.h"
19 #include "ARMInstrInfo.h"
20 #include "ARMFrameInfo.h"
21 #include "ARMJITInfo.h"
22 #include "ARMSubtarget.h"
23 #include "ARMISelLowering.h"
24 #include "Thumb1InstrInfo.h"
25 #include "Thumb2InstrInfo.h"
31 class ARMBaseTargetMachine : public LLVMTargetMachine {
33 ARMSubtarget Subtarget;
36 ARMFrameInfo FrameInfo;
38 InstrItineraryData InstrItins;
39 Reloc::Model DefRelocModel; // Reloc model before it's overridden.
42 ARMBaseTargetMachine(const Target &T, const Module &M, const std::string &FS,
45 virtual const ARMFrameInfo *getFrameInfo() const { return &FrameInfo; }
46 virtual ARMJITInfo *getJITInfo() { return &JITInfo; }
47 virtual const ARMSubtarget *getSubtargetImpl() const { return &Subtarget; }
48 virtual const InstrItineraryData getInstrItineraryData() const {
52 virtual const TargetAsmInfo *createTargetAsmInfo() const;
54 // Pass Pipeline Configuration
55 virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
56 virtual bool addPreRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
57 virtual bool addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
58 virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
59 MachineCodeEmitter &MCE);
60 virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
62 virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
63 ObjectCodeEmitter &OCE);
64 virtual bool addSimpleCodeEmitter(PassManagerBase &PM,
65 CodeGenOpt::Level OptLevel,
66 MachineCodeEmitter &MCE);
67 virtual bool addSimpleCodeEmitter(PassManagerBase &PM,
68 CodeGenOpt::Level OptLevel,
70 virtual bool addSimpleCodeEmitter(PassManagerBase &PM,
71 CodeGenOpt::Level OptLevel,
72 ObjectCodeEmitter &OCE);
75 /// ARMTargetMachine - ARM target machine.
77 class ARMTargetMachine : public ARMBaseTargetMachine {
78 ARMInstrInfo InstrInfo;
79 const TargetData DataLayout; // Calculates type size & alignment
80 ARMTargetLowering TLInfo;
82 ARMTargetMachine(const Target &T, const Module &M, const std::string &FS);
84 virtual const ARMRegisterInfo *getRegisterInfo() const {
85 return &InstrInfo.getRegisterInfo();
88 virtual ARMTargetLowering *getTargetLowering() const {
89 return const_cast<ARMTargetLowering*>(&TLInfo);
92 virtual const ARMInstrInfo *getInstrInfo() const { return &InstrInfo; }
93 virtual const TargetData *getTargetData() const { return &DataLayout; }
95 static unsigned getJITMatchQuality();
96 static unsigned getModuleMatchQuality(const Module &M);
99 /// ThumbTargetMachine - Thumb target machine.
100 /// Due to the way architectures are handled, this represents both
101 /// Thumb-1 and Thumb-2.
103 class ThumbTargetMachine : public ARMBaseTargetMachine {
104 ARMBaseInstrInfo *InstrInfo; // either Thumb1InstrInfo or Thumb2InstrInfo
105 const TargetData DataLayout; // Calculates type size & alignment
106 ARMTargetLowering TLInfo;
108 ThumbTargetMachine(const Target &T, const Module &M, const std::string &FS);
110 /// returns either Thumb1RegisterInfo of Thumb2RegisterInfo
111 virtual const ARMBaseRegisterInfo *getRegisterInfo() const {
112 return &InstrInfo->getRegisterInfo();
115 virtual ARMTargetLowering *getTargetLowering() const {
116 return const_cast<ARMTargetLowering*>(&TLInfo);
119 /// returns either Thumb1InstrInfo or Thumb2InstrInfo
120 virtual const ARMBaseInstrInfo *getInstrInfo() const { return InstrInfo; }
121 virtual const TargetData *getTargetData() const { return &DataLayout; }
123 static unsigned getJITMatchQuality();
124 static unsigned getModuleMatchQuality(const Module &M);
127 } // end namespace llvm