1 //==- SystemZTargetMachine.h - Define TargetMachine for SystemZ ---*- 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 SystemZ specific subclass of TargetMachine.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 
15 #ifndef LLVM_TARGET_SYSTEMZ_TARGETMACHINE_H
16 #define LLVM_TARGET_SYSTEMZ_TARGETMACHINE_H
17 
18 #include "SystemZInstrInfo.h"
19 #include "SystemZISelLowering.h"
20 #include "SystemZRegisterInfo.h"
21 #include "SystemZSubtarget.h"
22 #include "llvm/Target/TargetData.h"
23 #include "llvm/Target/TargetFrameInfo.h"
24 #include "llvm/Target/TargetMachine.h"
25 
26 namespace llvm {
27 
28 /// SystemZTargetMachine
29 ///
30 class SystemZTargetMachine : public LLVMTargetMachine {
31   SystemZSubtarget        Subtarget;
32   const TargetData        DataLayout;       // Calculates type size & alignment
33   SystemZInstrInfo        InstrInfo;
34   SystemZTargetLowering   TLInfo;
35 
36   // SystemZ does not have any call stack frame, therefore not having
37   // any SystemZ specific FrameInfo class.
38   TargetFrameInfo       FrameInfo;
39 public:
40   SystemZTargetMachine(const Target &T, const std::string &TT,
41                        const std::string &FS);
42 
43   virtual const TargetFrameInfo *getFrameInfo() const { return &FrameInfo; }
44   virtual const SystemZInstrInfo *getInstrInfo() const  { return &InstrInfo; }
45   virtual const TargetData *getTargetData() const     { return &DataLayout;}
46   virtual const SystemZSubtarget *getSubtargetImpl() const { return &Subtarget; }
47 
48   virtual const SystemZRegisterInfo *getRegisterInfo() const {
49     return &InstrInfo.getRegisterInfo();
50   }
51 
52   virtual SystemZTargetLowering *getTargetLowering() const {
53     return const_cast<SystemZTargetLowering*>(&TLInfo);
54   }
55 
56   virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
57 }; // SystemZTargetMachine.
58 
59 } // end namespace llvm
60 
61 #endif // LLVM_TARGET_SystemZ_TARGETMACHINE_H
62