//===---- MipsABIInfo.h - Information about MIPS ABI's --------------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #ifndef LLVM_LIB_TARGET_MIPS_MCTARGETDESC_MIPSABIINFO_H #define LLVM_LIB_TARGET_MIPS_MCTARGETDESC_MIPSABIINFO_H #include "llvm/ADT/Triple.h" #include "llvm/IR/CallingConv.h" #include "llvm/MC/MCRegisterInfo.h" namespace llvm { template <typename T> class ArrayRef; class MCTargetOptions; class StringRef; class TargetRegisterClass; class MipsABIInfo { public: enum class ABI { Unknown, O32, N32, N64 }; protected: ABI ThisABI; public: MipsABIInfo(ABI ThisABI) : ThisABI(ThisABI) {} static MipsABIInfo Unknown() { return MipsABIInfo(ABI::Unknown); } static MipsABIInfo O32() { return MipsABIInfo(ABI::O32); } static MipsABIInfo N32() { return MipsABIInfo(ABI::N32); } static MipsABIInfo N64() { return MipsABIInfo(ABI::N64); } static MipsABIInfo computeTargetABI(const Triple &TT, StringRef CPU, const MCTargetOptions &Options); bool IsKnown() const { return ThisABI != ABI::Unknown; } bool IsO32() const { return ThisABI == ABI::O32; } bool IsN32() const { return ThisABI == ABI::N32; } bool IsN64() const { return ThisABI == ABI::N64; } ABI GetEnumValue() const { return ThisABI; } /// The registers to use for byval arguments. ArrayRef<MCPhysReg> GetByValArgRegs() const; /// The registers to use for the variable argument list. ArrayRef<MCPhysReg> GetVarArgRegs() const; /// Obtain the size of the area allocated by the callee for arguments. /// CallingConv::FastCall affects the value for O32. unsigned GetCalleeAllocdArgSizeInBytes(CallingConv::ID CC) const; /// Ordering of ABI's /// MipsGenSubtargetInfo.inc will use this to resolve conflicts when given /// multiple ABI options. bool operator<(const MipsABIInfo Other) const { return ThisABI < Other.GetEnumValue(); } unsigned GetStackPtr() const; unsigned GetFramePtr() const; unsigned GetBasePtr() const; unsigned GetGlobalPtr() const; unsigned GetNullPtr() const; unsigned GetZeroReg() const; unsigned GetPtrAdduOp() const; unsigned GetPtrAddiuOp() const; unsigned GetPtrSubuOp() const; unsigned GetPtrAndOp() const; unsigned GetGPRMoveOp() const; inline bool ArePtrs64bit() const { return IsN64(); } inline bool AreGprs64bit() const { return IsN32() || IsN64(); } unsigned GetEhDataReg(unsigned I) const; }; } #endif |