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      1 //=-- HexagonTargetMachine.h - Define TargetMachine for Hexagon ---*- 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 Hexagon specific subclass of TargetMachine.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #ifndef HexagonTARGETMACHINE_H
     15 #define HexagonTARGETMACHINE_H
     16 
     17 #include "HexagonFrameLowering.h"
     18 #include "HexagonISelLowering.h"
     19 #include "HexagonInstrInfo.h"
     20 #include "HexagonSelectionDAGInfo.h"
     21 #include "HexagonSubtarget.h"
     22 #include "llvm/IR/DataLayout.h"
     23 #include "llvm/Target/TargetMachine.h"
     24 
     25 namespace llvm {
     26 
     27 class Module;
     28 
     29 class HexagonTargetMachine : public LLVMTargetMachine {
     30   const DataLayout DL;       // Calculates type size & alignment.
     31   HexagonSubtarget Subtarget;
     32   HexagonInstrInfo InstrInfo;
     33   HexagonTargetLowering TLInfo;
     34   HexagonSelectionDAGInfo TSInfo;
     35   HexagonFrameLowering FrameLowering;
     36   const InstrItineraryData* InstrItins;
     37 
     38 public:
     39   HexagonTargetMachine(const Target &T, StringRef TT,StringRef CPU,
     40                        StringRef FS, const TargetOptions &Options,
     41                        Reloc::Model RM, CodeModel::Model CM,
     42                        CodeGenOpt::Level OL);
     43 
     44   virtual const HexagonInstrInfo *getInstrInfo() const {
     45     return &InstrInfo;
     46   }
     47   virtual const HexagonSubtarget *getSubtargetImpl() const {
     48     return &Subtarget;
     49   }
     50   virtual const HexagonRegisterInfo *getRegisterInfo() const {
     51     return &InstrInfo.getRegisterInfo();
     52   }
     53 
     54   virtual const InstrItineraryData* getInstrItineraryData() const {
     55     return InstrItins;
     56   }
     57 
     58 
     59   virtual const HexagonTargetLowering* getTargetLowering() const {
     60     return &TLInfo;
     61   }
     62 
     63   virtual const HexagonFrameLowering* getFrameLowering() const {
     64     return &FrameLowering;
     65   }
     66 
     67   virtual const HexagonSelectionDAGInfo* getSelectionDAGInfo() const {
     68     return &TSInfo;
     69   }
     70 
     71   virtual const DataLayout       *getDataLayout() const { return &DL; }
     72   static unsigned getModuleMatchQuality(const Module &M);
     73 
     74   // Pass Pipeline Configuration.
     75   virtual bool addPassesForOptimizations(PassManagerBase &PM);
     76   virtual TargetPassConfig *createPassConfig(PassManagerBase &PM);
     77 };
     78 
     79 extern bool flag_aligned_memcpy;
     80 
     81 } // end namespace llvm
     82 
     83 #endif
     84