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 "SparcISelLowering.h"
19 #include "SparcInstrInfo.h"
20 #include "llvm/CodeGen/SelectionDAGTargetInfo.h"
21 #include "llvm/CodeGen/TargetFrameLowering.h"
22 #include "llvm/CodeGen/TargetSubtargetInfo.h"
23 #include "llvm/IR/DataLayout.h"
26 #define GET_SUBTARGETINFO_HEADER
27 #include "SparcGenSubtargetInfo.inc"
32 class SparcSubtarget : public SparcGenSubtargetInfo {
34 virtual void anchor();
38 bool V8DeprecatedInsts;
39 bool IsVIS, IsVIS2, IsVIS3;
52 bool DetectRoundChange;
53 bool PerformSDIVReplace;
55 SparcInstrInfo InstrInfo;
56 SparcTargetLowering TLInfo;
57 SelectionDAGTargetInfo TSInfo;
58 SparcFrameLowering FrameLowering;
61 SparcSubtarget(const Triple &TT, const std::string &CPU,
62 const std::string &FS, const TargetMachine &TM, bool is64bit);
64 const SparcInstrInfo *getInstrInfo() const override { return &InstrInfo; }
65 const TargetFrameLowering *getFrameLowering() const override {
66 return &FrameLowering;
68 const SparcRegisterInfo *getRegisterInfo() const override {
69 return &InstrInfo.getRegisterInfo();
71 const SparcTargetLowering *getTargetLowering() const override {
74 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
78 bool enableMachineScheduler() const override;
80 bool useSoftMulDiv() const { return UseSoftMulDiv; }
81 bool isV9() const { return IsV9; }
82 bool isLeon() const { return IsLeon; }
83 bool isVIS() const { return IsVIS; }
84 bool isVIS2() const { return IsVIS2; }
85 bool isVIS3() const { return IsVIS3; }
86 bool useDeprecatedV8Instructions() const { return V8DeprecatedInsts; }
87 bool hasHardQuad() const { return HasHardQuad; }
88 bool usePopc() const { return UsePopc; }
89 bool useSoftFloat() const { return UseSoftFloat; }
90 bool hasNoFSMULD() const { return HasNoFSMULD; }
91 bool hasNoFMULS() const { return HasNoFMULS; }
94 bool hasUmacSmac() const { return HasUmacSmac; }
95 bool performSDIVReplace() const { return PerformSDIVReplace; }
96 bool hasLeonCasa() const { return HasLeonCasa; }
97 bool insertNOPLoad() const { return InsertNOPLoad; }
98 bool fixAllFDIVSQRT() const { return FixAllFDIVSQRT; }
99 bool detectRoundChange() const { return DetectRoundChange; }
101 /// ParseSubtargetFeatures - Parses features string setting specified
102 /// subtarget options. Definition of function is auto generated by tblgen.
103 void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
104 SparcSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
106 bool is64Bit() const { return Is64Bit; }
108 /// The 64-bit ABI uses biased stack and frame pointers, so the stack frame
109 /// of the current function is the area from [%sp+BIAS] to [%fp+BIAS].
110 int64_t getStackPointerBias() const {
111 return is64Bit() ? 2047 : 0;
114 /// Given a actual stack size as determined by FrameInfo, this function
115 /// returns adjusted framesize which includes space for register window
116 /// spills and arguments.
117 int getAdjustedFrameSize(int stackSize) const;
119 bool isTargetLinux() const { return TargetTriple.isOSLinux(); }
122 } // end namespace llvm