1 //===-- SparcSubtarget.h - Define Subtarget for the SPARC -------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares the SPARC specific subclass of TargetSubtargetInfo.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_LIB_TARGET_SPARC_SPARCSUBTARGET_H
15 #define LLVM_LIB_TARGET_SPARC_SPARCSUBTARGET_H
17 #include "SparcFrameLowering.h"
18 #include "SparcInstrInfo.h"
19 #include "SparcISelLowering.h"
20 #include "llvm/IR/DataLayout.h"
21 #include "llvm/Target/TargetFrameLowering.h"
22 #include "llvm/Target/TargetSelectionDAGInfo.h"
23 #include "llvm/Target/TargetSubtargetInfo.h"
26 #define GET_SUBTARGETINFO_HEADER
27 #include "SparcGenSubtargetInfo.inc"
32 class SparcSubtarget : public SparcGenSubtargetInfo {
33 virtual void anchor();
35 bool V8DeprecatedInsts;
36 bool IsVIS, IsVIS2, IsVIS3;
40 SparcInstrInfo InstrInfo;
41 SparcTargetLowering TLInfo;
42 TargetSelectionDAGInfo TSInfo;
43 SparcFrameLowering FrameLowering;
46 SparcSubtarget(const Triple &TT, const std::string &CPU,
47 const std::string &FS, TargetMachine &TM, bool is64bit);
49 const SparcInstrInfo *getInstrInfo() const override { return &InstrInfo; }
50 const TargetFrameLowering *getFrameLowering() const override {
51 return &FrameLowering;
53 const SparcRegisterInfo *getRegisterInfo() const override {
54 return &InstrInfo.getRegisterInfo();
56 const SparcTargetLowering *getTargetLowering() const override {
59 const TargetSelectionDAGInfo *getSelectionDAGInfo() const override {
63 bool isV9() const { return IsV9; }
64 bool isVIS() const { return IsVIS; }
65 bool isVIS2() const { return IsVIS2; }
66 bool isVIS3() const { return IsVIS3; }
67 bool useDeprecatedV8Instructions() const { return V8DeprecatedInsts; }
68 bool hasHardQuad() const { return HasHardQuad; }
69 bool usePopc() const { return UsePopc; }
71 /// ParseSubtargetFeatures - Parses features string setting specified
72 /// subtarget options. Definition of function is auto generated by tblgen.
73 void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
74 SparcSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
76 bool is64Bit() const { return Is64Bit; }
78 /// The 64-bit ABI uses biased stack and frame pointers, so the stack frame
79 /// of the current function is the area from [%sp+BIAS] to [%fp+BIAS].
80 int64_t getStackPointerBias() const {
81 return is64Bit() ? 2047 : 0;
84 /// Given a actual stack size as determined by FrameInfo, this function
85 /// returns adjusted framesize which includes space for register window
86 /// spills and arguments.
87 int getAdjustedFrameSize(int stackSize) const;
91 } // end namespace llvm