1 //===-- PPCTargetMachine.h - Define TargetMachine for PowerPC -----*- 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 PowerPC specific subclass of TargetMachine. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef PPC_TARGETMACHINE_H 15 #define PPC_TARGETMACHINE_H 16 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" 25 26 namespace llvm { 27 class PassManager; 28 class GlobalValue; 29 30 /// PPCTargetMachine - Common code between 32-bit and 64-bit PowerPC targets. 31 /// 32 class PPCTargetMachine : public LLVMTargetMachine { 33 PPCSubtarget Subtarget; 34 const TargetData DataLayout; // Calculates type size & alignment 35 PPCInstrInfo InstrInfo; 36 PPCFrameInfo FrameInfo; 37 PPCJITInfo JITInfo; 38 PPCTargetLowering TLInfo; 39 InstrItineraryData InstrItins; 40 PPCMachOWriterInfo MachOWriterInfo; 41 42 public: 43 PPCTargetMachine(const Target &T, const std::string &TT, 44 const std::string &FS, bool is64Bit); 45 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); 51 } 52 virtual const PPCRegisterInfo *getRegisterInfo() const { 53 return &InstrInfo.getRegisterInfo(); 54 } 55 56 virtual const TargetData *getTargetData() const { return &DataLayout; } 57 virtual const PPCSubtarget *getSubtargetImpl() const { return &Subtarget; } 58 virtual const InstrItineraryData getInstrItineraryData() const { 59 return InstrItins; 60 } 61 virtual const PPCMachOWriterInfo *getMachOWriterInfo() const { 62 return &MachOWriterInfo; 63 } 64 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. 71 /// 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; 76 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, 83 JITCodeEmitter &JCE); 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, 91 JITCodeEmitter &JCE); 92 virtual bool addSimpleCodeEmitter(PassManagerBase &PM, 93 CodeGenOpt::Level OptLevel, 94 ObjectCodeEmitter &OCE); 95 virtual bool getEnableTailMergeDefault() const; 96 }; 97 98 /// PPC32TargetMachine - PowerPC 32-bit target machine. 99 /// 100 class PPC32TargetMachine : public PPCTargetMachine { 101 public: 102 PPC32TargetMachine(const Target &T, const std::string &TT, 103 const std::string &FS); 104 }; 105 106 /// PPC64TargetMachine - PowerPC 64-bit target machine. 107 /// 108 class PPC64TargetMachine : public PPCTargetMachine { 109 public: 110 PPC64TargetMachine(const Target &T, const std::string &TT, 111 const std::string &FS); 112 }; 113 114 } // end namespace llvm 115 116 #endif 117