| //===---- 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 |