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 LLVM_LIB_TARGET_POWERPC_PPCTARGETMACHINE_H 15 #define LLVM_LIB_TARGET_POWERPC_PPCTARGETMACHINE_H 16 17 #include "PPCInstrInfo.h" 18 #include "PPCSubtarget.h" 19 #include "llvm/IR/DataLayout.h" 20 #include "llvm/Target/TargetMachine.h" 21 22 namespace llvm { 23 24 /// Common code between 32-bit and 64-bit PowerPC targets. 25 /// 26 class PPCTargetMachine final : public LLVMTargetMachine { 27 public: 28 enum PPCABI { PPC_ABI_UNKNOWN, PPC_ABI_ELFv1, PPC_ABI_ELFv2 }; 29 private: 30 std::unique_ptr<TargetLoweringObjectFile> TLOF; 31 PPCABI TargetABI; 32 33 mutable StringMap<std::unique_ptr<PPCSubtarget>> SubtargetMap; 34 35 public: 36 PPCTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 37 StringRef FS, const TargetOptions &Options, 38 Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM, 39 CodeGenOpt::Level OL, bool JIT); 40 41 ~PPCTargetMachine() override; 42 43 const PPCSubtarget *getSubtargetImpl(const Function &F) const override; 44 // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget, 45 // subtargets are per-function entities based on the target-specific 46 // attributes of each function. 47 const PPCSubtarget *getSubtargetImpl() const = delete; 48 49 // Pass Pipeline Configuration 50 TargetPassConfig *createPassConfig(PassManagerBase &PM) override; 51 52 TargetTransformInfo getTargetTransformInfo(const Function &F) override; 53 getObjFileLowering()54 TargetLoweringObjectFile *getObjFileLowering() const override { 55 return TLOF.get(); 56 } isELFv2ABI()57 bool isELFv2ABI() const { return TargetABI == PPC_ABI_ELFv2; } isPPC64()58 bool isPPC64() const { 59 const Triple &TT = getTargetTriple(); 60 return (TT.getArch() == Triple::ppc64 || TT.getArch() == Triple::ppc64le); 61 }; 62 isMachineVerifierClean()63 bool isMachineVerifierClean() const override { 64 return false; 65 } 66 }; 67 } // end namespace llvm 68 69 #endif 70