1 //===---- MipsABIInfo.h - Information about MIPS ABI's --------------------===// 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 #ifndef MIPSABIINFO_H 11 #define MIPSABIINFO_H 12 13 #include "llvm/ADT/ArrayRef.h" 14 #include "llvm/IR/CallingConv.h" 15 #include "llvm/MC/MCRegisterInfo.h" 16 17 namespace llvm { 18 19 class MipsABIInfo { 20 public: 21 enum class ABI { Unknown, O32, N32, N64, EABI }; 22 23 protected: 24 ABI ThisABI; 25 26 public: MipsABIInfo(ABI ThisABI)27 MipsABIInfo(ABI ThisABI) : ThisABI(ThisABI) {} 28 Unknown()29 static MipsABIInfo Unknown() { return MipsABIInfo(ABI::Unknown); } O32()30 static MipsABIInfo O32() { return MipsABIInfo(ABI::O32); } N32()31 static MipsABIInfo N32() { return MipsABIInfo(ABI::N32); } N64()32 static MipsABIInfo N64() { return MipsABIInfo(ABI::N64); } EABI()33 static MipsABIInfo EABI() { return MipsABIInfo(ABI::EABI); } 34 IsKnown()35 bool IsKnown() const { return ThisABI != ABI::Unknown; } IsO32()36 bool IsO32() const { return ThisABI == ABI::O32; } IsN32()37 bool IsN32() const { return ThisABI == ABI::N32; } IsN64()38 bool IsN64() const { return ThisABI == ABI::N64; } IsEABI()39 bool IsEABI() const { return ThisABI == ABI::EABI; } GetEnumValue()40 ABI GetEnumValue() const { return ThisABI; } 41 42 /// The registers to use for byval arguments. 43 const ArrayRef<MCPhysReg> GetByValArgRegs() const; 44 45 /// The registers to use for the variable argument list. 46 const ArrayRef<MCPhysReg> GetVarArgRegs() const; 47 48 /// Obtain the size of the area allocated by the callee for arguments. 49 /// CallingConv::FastCall affects the value for O32. 50 unsigned GetCalleeAllocdArgSizeInBytes(CallingConv::ID CC) const; 51 52 /// Ordering of ABI's 53 /// MipsGenSubtargetInfo.inc will use this to resolve conflicts when given 54 /// multiple ABI options. 55 bool operator<(const MipsABIInfo Other) const { 56 return ThisABI < Other.GetEnumValue(); 57 } 58 }; 59 } 60 61 #endif 62