14 #ifndef LLVM_LIB_TARGET_AARCH64_AARCH64FRAMELOWERING_H
15 #define LLVM_LIB_TARGET_AARCH64_AARCH64FRAMELOWERING_H
42 unsigned &FrameReg)
const override;
45 bool PreferFP =
false)
const;
48 const std::vector<CalleeSavedInfo> &CSI,
53 const std::vector<CalleeSavedInfo> &CSI,
74 unsigned StackBumpBytes)
const;
int resolveFrameIndexReference(const MachineFunction &MF, int FI, unsigned &FrameReg, bool PreferFP=false) const
bool enableShrinkWrapping(const MachineFunction &MF) const override
Returns true if the target will correctly handle shrink wrapping.
bool hasReservedCallFrame(const MachineFunction &MF) const override
hasReservedCallFrame - Under normal circumstances, when a frame pointer is not required, we reserve argument space for call sites in the function immediately on entry to the current function.
bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, const std::vector< CalleeSavedInfo > &CSI, const TargetRegisterInfo *TRI) const override
restoreCalleeSavedRegisters - Issues instruction(s) to restore all callee saved registers and returns...
int getFrameIndexReference(const MachineFunction &MF, int FI, unsigned &FrameReg) const override
getFrameIndexReference - Provide a base+offset reference to an FI slot for debug info.
bool canUseAsPrologue(const MachineBasicBlock &MBB) const override
Check whether or not the given MBB can be used as a prologue for the target.
void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs, RegScavenger *RS) const override
This method determines which of the registers reported by TargetRegisterInfo::getCalleeSavedRegs() sh...
void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override
emitProlog/emitEpilog - These methods insert prolog and epilog code into the function.
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override
TargetRegisterInfo base class - We assume that the target defines a static array of TargetRegisterDes...
Information about stack frame layout on the target.
bool enableStackSlotScavenging(const MachineFunction &MF) const override
Returns true if the stack slot holes in the fixed and callee-save stack area should be used when allo...
bool hasFP(const MachineFunction &MF) const override
hasFP - Return true if the specified function should have a dedicated frame pointer register...
bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, const std::vector< CalleeSavedInfo > &CSI, const TargetRegisterInfo *TRI) const override
spillCalleeSavedRegisters - Issues instruction(s) to spill all callee saved registers and returns tru...
MachineBasicBlock::iterator eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator I) const override
This method is called during prolog/epilog code insertion to eliminate call frame setup and destroy p...
bool canUseRedZone(const MachineFunction &MF) const
Can this function use the red zone for local allocations.
void emitCalleeSavedFrameMoves(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI) const