1 //===-- PPCTargetMachine.h - Define TargetMachine for PowerPC -----*- 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 PowerPC specific subclass of TargetMachine.
12 //===----------------------------------------------------------------------===//
14 #ifndef PPC_TARGETMACHINE_H
15 #define PPC_TARGETMACHINE_H
17 #include "PPCFrameInfo.h"
18 #include "PPCSubtarget.h"
19 #include "PPCJITInfo.h"
20 #include "PPCInstrInfo.h"
21 #include "PPCISelLowering.h"
22 #include "PPCMachOWriterInfo.h"
23 #include "llvm/Target/TargetMachine.h"
24 #include "llvm/Target/TargetData.h"
30 /// PPCTargetMachine - Common code between 32-bit and 64-bit PowerPC targets.
32 class PPCTargetMachine : public LLVMTargetMachine {
33 PPCSubtarget Subtarget;
34 const TargetData DataLayout; // Calculates type size & alignment
35 PPCInstrInfo InstrInfo;
36 PPCFrameInfo FrameInfo;
38 PPCTargetLowering TLInfo;
39 InstrItineraryData InstrItins;
40 PPCMachOWriterInfo MachOWriterInfo;
43 PPCTargetMachine(const Target &T, const std::string &TT,
44 const std::string &FS, bool is64Bit);
46 virtual const PPCInstrInfo *getInstrInfo() const { return &InstrInfo; }
47 virtual const PPCFrameInfo *getFrameInfo() const { return &FrameInfo; }
48 virtual PPCJITInfo *getJITInfo() { return &JITInfo; }
49 virtual PPCTargetLowering *getTargetLowering() const {
50 return const_cast<PPCTargetLowering*>(&TLInfo);
52 virtual const PPCRegisterInfo *getRegisterInfo() const {
53 return &InstrInfo.getRegisterInfo();
56 virtual const TargetData *getTargetData() const { return &DataLayout; }
57 virtual const PPCSubtarget *getSubtargetImpl() const { return &Subtarget; }
58 virtual const InstrItineraryData getInstrItineraryData() const {
61 virtual const PPCMachOWriterInfo *getMachOWriterInfo() const {
62 return &MachOWriterInfo;
65 /// getLSDAEncoding - Returns the LSDA pointer encoding. The choices are
66 /// 4-byte, 8-byte, and target default. The CIE is hard-coded to indicate that
67 /// the LSDA pointer in the FDE section is an "sdata4", and should be encoded
68 /// as a 4-byte pointer by default. However, some systems may require a
69 /// different size due to bugs or other conditions. We will default to a
70 /// 4-byte encoding unless the system tells us otherwise.
72 /// FIXME: This call-back isn't good! We should be using the correct encoding
73 /// regardless of the system. However, there are some systems which have bugs
74 /// that prevent this from occuring.
75 virtual DwarfLSDAEncoding::Encoding getLSDAEncoding() const;
77 // Pass Pipeline Configuration
78 virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
79 virtual bool addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
80 virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
81 MachineCodeEmitter &MCE);
82 virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
84 virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
85 ObjectCodeEmitter &OCE);
86 virtual bool addSimpleCodeEmitter(PassManagerBase &PM,
87 CodeGenOpt::Level OptLevel,
88 MachineCodeEmitter &MCE);
89 virtual bool addSimpleCodeEmitter(PassManagerBase &PM,
90 CodeGenOpt::Level OptLevel,
92 virtual bool addSimpleCodeEmitter(PassManagerBase &PM,
93 CodeGenOpt::Level OptLevel,
94 ObjectCodeEmitter &OCE);
95 virtual bool getEnableTailMergeDefault() const;
98 /// PPC32TargetMachine - PowerPC 32-bit target machine.
100 class PPC32TargetMachine : public PPCTargetMachine {
102 PPC32TargetMachine(const Target &T, const std::string &TT,
103 const std::string &FS);
106 /// PPC64TargetMachine - PowerPC 64-bit target machine.
108 class PPC64TargetMachine : public PPCTargetMachine {
110 PPC64TargetMachine(const Target &T, const std::string &TT,
111 const std::string &FS);
114 } // end namespace llvm