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 "SystemZSelectionDAGInfo.h"
21 #include "SystemZRegisterInfo.h"
22 #include "SystemZSubtarget.h"
23 #include "llvm/Target/TargetData.h"
24 #include "llvm/Target/TargetFrameInfo.h"
25 #include "llvm/Target/TargetMachine.h"
26 
27 namespace llvm {
28 
29 /// SystemZTargetMachine
30 ///
31 class SystemZTargetMachine : public LLVMTargetMachine {
32   SystemZSubtarget        Subtarget;
33   const TargetData        DataLayout;       // Calculates type size & alignment
34   SystemZInstrInfo        InstrInfo;
35   SystemZTargetLowering   TLInfo;
36   SystemZSelectionDAGInfo TSInfo;
37 
38   // SystemZ does not have any call stack frame, therefore not having
39   // any SystemZ specific FrameInfo class.
40   TargetFrameInfo       FrameInfo;
41 public:
42   SystemZTargetMachine(const Target &T, const std::string &TT,
43                        const std::string &FS);
44 
45   virtual const TargetFrameInfo *getFrameInfo() const { return &FrameInfo; }
46   virtual const SystemZInstrInfo *getInstrInfo() const  { return &InstrInfo; }
47   virtual const TargetData *getTargetData() const     { return &DataLayout;}
48   virtual const SystemZSubtarget *getSubtargetImpl() const { return &Subtarget; }
49 
50   virtual const SystemZRegisterInfo *getRegisterInfo() const {
51     return &InstrInfo.getRegisterInfo();
52   }
53 
54   virtual const SystemZTargetLowering *getTargetLowering() const {
55     return &TLInfo;
56   }
57 
58   virtual const SystemZSelectionDAGInfo* getSelectionDAGInfo() const {
59     return &TSInfo;
60   }
61 
62   virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
63 }; // SystemZTargetMachine.
64 
65 } // end namespace llvm
66 
67 #endif // LLVM_TARGET_SystemZ_TARGETMACHINE_H
68