1 //==-- AArch64TargetMachine.h - Define TargetMachine for AArch64 -*- 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 AArch64 specific subclass of TargetMachine.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_LIB_TARGET_AARCH64_AARCH64TARGETMACHINE_H
15 #define LLVM_LIB_TARGET_AARCH64_AARCH64TARGETMACHINE_H
16 
17 #include "AArch64InstrInfo.h"
18 #include "AArch64Subtarget.h"
19 #include "llvm/IR/DataLayout.h"
20 #include "llvm/Target/TargetMachine.h"
21 
22 namespace llvm {
23 
24 class AArch64TargetMachine : public LLVMTargetMachine {
25 protected:
26   std::unique_ptr<TargetLoweringObjectFile> TLOF;
27   mutable StringMap<std::unique_ptr<AArch64Subtarget>> SubtargetMap;
28 
29 public:
30   AArch64TargetMachine(const Target &T, const Triple &TT, StringRef CPU,
31                        StringRef FS, const TargetOptions &Options,
32                        Optional<Reloc::Model> RM, CodeModel::Model CM,
33                        CodeGenOpt::Level OL, bool IsLittleEndian);
34 
35   ~AArch64TargetMachine() override;
36   const AArch64Subtarget *getSubtargetImpl(const Function &F) const override;
37 
38   // Pass Pipeline Configuration
39   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
40 
41   /// \brief Get the TargetIRAnalysis for this target.
42   TargetIRAnalysis getTargetIRAnalysis() override;
43 
44   TargetLoweringObjectFile* getObjFileLowering() const override {
45     return TLOF.get();
46   }
47 
48 private:
49   AArch64Subtarget Subtarget;
50 };
51 
52 // AArch64 little endian target machine.
53 //
54 class AArch64leTargetMachine : public AArch64TargetMachine {
55   virtual void anchor();
56 public:
57   AArch64leTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
58                          StringRef FS, const TargetOptions &Options,
59                          Optional<Reloc::Model> RM, CodeModel::Model CM,
60                          CodeGenOpt::Level OL);
61 };
62 
63 // AArch64 big endian target machine.
64 //
65 class AArch64beTargetMachine : public AArch64TargetMachine {
66   virtual void anchor();
67 public:
68   AArch64beTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
69                          StringRef FS, const TargetOptions &Options,
70                          Optional<Reloc::Model> RM, CodeModel::Model CM,
71                          CodeGenOpt::Level OL);
72 };
73 
74 } // end namespace llvm
75 
76 #endif
77