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1 //===-- SparcSubtarget.h - Define Subtarget for the SPARC -------*- 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 SPARC specific subclass of TargetSubtargetInfo.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef SPARC_SUBTARGET_H
15 #define SPARC_SUBTARGET_H
16 
17 #include "SparcFrameLowering.h"
18 #include "SparcInstrInfo.h"
19 #include "SparcISelLowering.h"
20 #include "SparcJITInfo.h"
21 #include "SparcSelectionDAGInfo.h"
22 #include "llvm/IR/DataLayout.h"
23 #include "llvm/Target/TargetFrameLowering.h"
24 #include "llvm/Target/TargetSubtargetInfo.h"
25 #include <string>
26 
27 #define GET_SUBTARGETINFO_HEADER
28 #include "SparcGenSubtargetInfo.inc"
29 
30 namespace llvm {
31 class StringRef;
32 
33 class SparcSubtarget : public SparcGenSubtargetInfo {
34   virtual void anchor();
35   bool IsV9;
36   bool V8DeprecatedInsts;
37   bool IsVIS, IsVIS2, IsVIS3;
38   bool Is64Bit;
39   bool HasHardQuad;
40   bool UsePopc;
41   const DataLayout DL;       // Calculates type size & alignment
42   SparcInstrInfo InstrInfo;
43   SparcTargetLowering TLInfo;
44   SparcSelectionDAGInfo TSInfo;
45   SparcFrameLowering FrameLowering;
46   SparcJITInfo JITInfo;
47 
48 public:
49   SparcSubtarget(const std::string &TT, const std::string &CPU,
50                  const std::string &FS, TargetMachine &TM, bool is64bit);
51 
getInstrInfo()52   const SparcInstrInfo *getInstrInfo() const { return &InstrInfo; }
getFrameLowering()53   const TargetFrameLowering *getFrameLowering() const { return &FrameLowering; }
getRegisterInfo()54   const SparcRegisterInfo *getRegisterInfo() const {
55     return &InstrInfo.getRegisterInfo();
56   }
getTargetLowering()57   const SparcTargetLowering *getTargetLowering() const { return &TLInfo; }
getSelectionDAGInfo()58   const SparcSelectionDAGInfo *getSelectionDAGInfo() const { return &TSInfo; }
getJITInfo()59   SparcJITInfo *getJITInfo() { return &JITInfo; }
getDataLayout()60   const DataLayout *getDataLayout() const { return &DL; }
61 
isV9()62   bool isV9() const { return IsV9; }
isVIS()63   bool isVIS() const { return IsVIS; }
isVIS2()64   bool isVIS2() const { return IsVIS2; }
isVIS3()65   bool isVIS3() const { return IsVIS3; }
useDeprecatedV8Instructions()66   bool useDeprecatedV8Instructions() const { return V8DeprecatedInsts; }
hasHardQuad()67   bool hasHardQuad() const { return HasHardQuad; }
usePopc()68   bool usePopc() const { return UsePopc; }
69 
70   /// ParseSubtargetFeatures - Parses features string setting specified
71   /// subtarget options.  Definition of function is auto generated by tblgen.
72   void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
73   SparcSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
74 
is64Bit()75   bool is64Bit() const { return Is64Bit; }
76 
77   /// The 64-bit ABI uses biased stack and frame pointers, so the stack frame
78   /// of the current function is the area from [%sp+BIAS] to [%fp+BIAS].
getStackPointerBias()79   int64_t getStackPointerBias() const {
80     return is64Bit() ? 2047 : 0;
81   }
82 
83   /// Given a actual stack size as determined by FrameInfo, this function
84   /// returns adjusted framesize which includes space for register window
85   /// spills and arguments.
86   int getAdjustedFrameSize(int stackSize) const;
87 
88 };
89 
90 } // end namespace llvm
91 
92 #endif
93