14#ifndef LLVM_LIB_TARGET_M68K_M68KFRAMELOWERING_H
15#define LLVM_LIB_TARGET_M68K_M68KFRAMELOWERING_H
22class MachineInstrBuilder;
23class MCCFIInstruction;
25class M68kRegisterInfo;
49 bool InEpilogue)
const;
105 std::vector<CalleeSavedInfo> &CSI)
const override;
163 bool doMergeWithPrevious)
const;
168 int64_t NumBytes,
bool InEpilogue)
const;
MachineBasicBlock MachineBasicBlock::iterator DebugLoc DL
MachineBasicBlock MachineBasicBlock::iterator MBBI
This file contains the entry points for global functions defined in the M68k target library,...
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...
void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs, RegScavenger *RS=nullptr) const override
This method determines which of the registers reported by TargetRegisterInfo::getCalleeSavedRegs() sh...
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override
Insert epilog code into the function.
void emitSPUpdate(MachineBasicBlock &MBB, MachineBasicBlock::iterator &MBBI, int64_t NumBytes, bool InEpilogue) const
Emit a series of instructions to increment / decrement the stack pointer by a constant value.
bool assignCalleeSavedSpillSlots(MachineFunction &MF, const TargetRegisterInfo *TRI, std::vector< CalleeSavedInfo > &CSI) const override
Allows target to override spill slot assignment logic.
bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, ArrayRef< CalleeSavedInfo > CSI, const TargetRegisterInfo *TRI) const override
Issues instruction(s) to spill all callee saved registers and returns true if it isn't possible / pro...
bool hasReservedCallFrame(const MachineFunction &MF) const override
Under normal circumstances, when a frame pointer is not required, we reserve argument space for call ...
int mergeSPUpdates(MachineBasicBlock &MBB, MachineBasicBlock::iterator &MBBI, bool doMergeWithPrevious) const
Check the instruction before/after the passed instruction.
StackOffset getFrameIndexReference(const MachineFunction &MF, int FI, Register &FrameReg) const override
This method should return the base register and offset used to reference a frame index location.
static const M68kFrameLowering * create(const M68kSubtarget &ST)
MachineBasicBlock::iterator eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator MI) const override
This method is called during prolog/epilog code insertion to eliminate call frame setup and destroy p...
void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override
Insert prolog code into the function.
bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, MutableArrayRef< CalleeSavedInfo > CSI, const TargetRegisterInfo *TRI) const override
Issues instruction(s) to restore all callee saved registers and returns true if it isn't possible / p...
bool hasFP(const MachineFunction &MF) const override
Return true if the specified function should have a dedicated frame pointer register.
bool canSimplifyCallFramePseudos(const MachineFunction &MF) const override
If there is a reserved call frame, the call frame pseudos can be simplified.
bool needsFrameIndexResolution(const MachineFunction &MF) const override
MutableArrayRef - Represent a mutable reference to an array (0 or more elements consecutively in memo...
Wrapper class representing virtual and physical registers.
StackOffset holds a fixed and a scalable offset in bytes.
Information about stack frame layout on the target.
TargetInstrInfo - Interface to description of machine instruction set.
TargetRegisterInfo base class - We assume that the target defines a static array of TargetRegisterDes...
This is an optimization pass for GlobalISel generic memory operations.
This struct is a compact representation of a valid (non-zero power of two) alignment.