llvm::SystemZCallingConventionRegisters Class Reference

A SystemZ-specific class detailing special use registers particular for calling conventions. More...

#include "Target/SystemZ/SystemZRegisterInfo.h"

Inheritance diagram for llvm::SystemZCallingConventionRegisters:

Public Member Functions
virtual int	getReturnFunctionAddressRegister ()=0
virtual int	getStackPointerRegister ()=0
virtual int	getFramePointerRegister ()=0
virtual const MCPhysReg *	getCalleeSavedRegs (const MachineFunction *MF) const =0
virtual const uint32_t *	getCallPreservedMask (const MachineFunction &MF, CallingConv::ID CC) const =0
virtual int	getCallFrameSize ()=0
virtual int	getStackPointerBias ()=0
virtual	~SystemZCallingConventionRegisters ()=default
	Destroys the object.

Detailed Description

A SystemZ-specific class detailing special use registers particular for calling conventions.

It is abstract, all calling conventions must override and define the pure virtual member function defined in this class.

Definition at line 47 of file SystemZRegisterInfo.h.

Constructor & Destructor Documentation

~SystemZCallingConventionRegisters()

virtual llvm::SystemZCallingConventionRegisters::~SystemZCallingConventionRegisters ( )

virtualdefault

Destroys the object.

Bogus destructor allowing derived classes to override it.

Member Function Documentation

getCalleeSavedRegs()

virtual const MCPhysReg * llvm::SystemZCallingConventionRegisters::getCalleeSavedRegs ( const MachineFunction *  MF ) const

pure virtual

Returns

an array of all the callee saved registers.

Implemented in llvm::SystemZXPLINK64Registers, and llvm::SystemZELFRegisters.

Referenced by llvm::SystemZRegisterInfo::getCalleeSavedRegs().

getCallFrameSize()

virtual int llvm::SystemZCallingConventionRegisters::getCallFrameSize ( )

pure virtual

Returns

the offset to the locals area.

Implemented in llvm::SystemZXPLINK64Registers, and llvm::SystemZELFRegisters.

Referenced by llvm::SystemZTargetLowering::LowerCall().

getCallPreservedMask()

virtual const uint32_t * llvm::SystemZCallingConventionRegisters::getCallPreservedMask ( const MachineFunction &  MF, CallingConv::ID  CC  ) const

pure virtual

Returns

the mask of all the call preserved registers.

Implemented in llvm::SystemZXPLINK64Registers, and llvm::SystemZELFRegisters.

Referenced by llvm::SystemZRegisterInfo::getCallPreservedMask().

getFramePointerRegister()

virtual int llvm::SystemZCallingConventionRegisters::getFramePointerRegister ( )

pure virtual

Returns

the register that keeps the frame pointer address.

Implemented in llvm::SystemZXPLINK64Registers, and llvm::SystemZELFRegisters.

getReturnFunctionAddressRegister()

virtual int llvm::SystemZCallingConventionRegisters::getReturnFunctionAddressRegister ( )

pure virtual

Returns

the register that keeps the return function address.

Implemented in llvm::SystemZXPLINK64Registers, and llvm::SystemZELFRegisters.

getStackPointerBias()

virtual int llvm::SystemZCallingConventionRegisters::getStackPointerBias ( )

pure virtual

Returns

the stack pointer bias.

Implemented in llvm::SystemZXPLINK64Registers, and llvm::SystemZELFRegisters.

Referenced by llvm::SystemZTargetLowering::LowerCall().

getStackPointerRegister()

virtual int llvm::SystemZCallingConventionRegisters::getStackPointerRegister ( )

pure virtual

Returns

the register that keeps the stack pointer address.

Implemented in llvm::SystemZXPLINK64Registers, and llvm::SystemZELFRegisters.

Referenced by llvm::SystemZTargetLowering::LowerCall().

---

The documentation for this class was generated from the following file:

• lib/Target/SystemZ/SystemZRegisterInfo.h