13#ifndef LLVM_LIB_TARGET_AARCH64_AARCH64FRAMELOWERING_H
14#define LLVM_LIB_TARGET_AARCH64_AARCH64FRAMELOWERING_H
46 int FI)
const override;
51 int64_t ObjectOffset,
bool isFixed,
53 bool PreferFP,
bool ForSimm)
const;
72 std::vector<CalleeSavedInfo> &CSI,
73 unsigned &MinCSFrameIndex,
74 unsigned &MaxCSFrameIndex)
const override;
101 bool IgnoreSPUpdates)
const override;
103 int FI)
const override;
146 int &MinCSFrameIndex,
147 int &MaxCSFrameIndex)
const;
149 unsigned StackBumpBytes)
const;
161 bool NeedsWinCFI,
bool *HasWinCFI,
bool EmitCFI,
162 StackOffset InitialOffset,
bool FollowupAllocs)
const;
169 void emitZeroCallUsedRegs(
BitVector RegsToZero,
177 Register ScratchReg, int64_t FrameSize,
182 int64_t NegProbeSize,
MachineBasicBlock MachineBasicBlock::iterator MBBI
unsigned const TargetRegisterInfo * TRI
void processFunctionBeforeFrameIndicesReplaced(MachineFunction &MF, RegScavenger *RS) const override
processFunctionBeforeFrameIndicesReplaced - This method is called immediately before MO_FrameIndex op...
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 canUseAsPrologue(const MachineBasicBlock &MBB) const override
Check whether or not the given MBB can be used as a prologue for 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 spillCalleeSavedRegisters(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, ArrayRef< CalleeSavedInfo > CSI, const TargetRegisterInfo *TRI) const override
spillCalleeSavedRegisters - Issues instruction(s) to spill all callee saved registers and returns tru...
bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, MutableArrayRef< CalleeSavedInfo > CSI, const TargetRegisterInfo *TRI) const override
restoreCalleeSavedRegisters - Issues instruction(s) to restore all callee saved registers and returns...
StackOffset getFrameIndexReferenceFromSP(const MachineFunction &MF, int FI) const override
getFrameIndexReferenceFromSP - This method returns the offset from the stack pointer to the slot of t...
StackOffset getNonLocalFrameIndexReference(const MachineFunction &MF, int FI) const override
getNonLocalFrameIndexReference - This method returns the offset used to reference a frame index locat...
TargetStackID::Value getStackIDForScalableVectors() const override
Returns the StackID that scalable vectors should be associated with.
bool hasFPImpl(const MachineFunction &MF) const override
hasFPImpl - Return true if the specified function should have a dedicated frame pointer register.
void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override
emitProlog/emitEpilog - These methods insert prolog and epilog code into the function.
bool enableCFIFixup(MachineFunction &MF) const override
Returns true if we may need to fix the unwind information for the function.
void resetCFIToInitialState(MachineBasicBlock &MBB) const override
Emit CFI instructions that recreate the state of the unwind information upon fucntion entry.
bool hasReservedCallFrame(const MachineFunction &MF) const override
hasReservedCallFrame - Under normal circumstances, when a frame pointer is not required,...
bool enableShrinkWrapping(const MachineFunction &MF) const override
Returns true if the target will correctly handle shrink wrapping.
bool canUseRedZone(const MachineFunction &MF) const
Can this function use the red zone for local allocations.
bool isSupportedStackID(TargetStackID::Value ID) const override
void processFunctionBeforeFrameFinalized(MachineFunction &MF, RegScavenger *RS) const override
processFunctionBeforeFrameFinalized - This method is called immediately before the specified function...
int getSEHFrameIndexOffset(const MachineFunction &MF, int FI) const
unsigned getWinEHFuncletFrameSize(const MachineFunction &MF) const
Funclets only need to account for space for the callee saved registers, as the locals are accounted f...
void orderFrameObjects(const MachineFunction &MF, SmallVectorImpl< int > &ObjectsToAllocate) const override
Order the symbols in the local stack frame.
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override
void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs, RegScavenger *RS) const override
This method determines which of the registers reported by TargetRegisterInfo::getCalleeSavedRegs() sh...
StackOffset getFrameIndexReference(const MachineFunction &MF, int FI, Register &FrameReg) const override
getFrameIndexReference - Provide a base+offset reference to an FI slot for debug info.
StackOffset resolveFrameOffsetReference(const MachineFunction &MF, int64_t ObjectOffset, bool isFixed, bool isSVE, Register &FrameReg, bool PreferFP, bool ForSimm) const
bool assignCalleeSavedSpillSlots(MachineFunction &MF, const TargetRegisterInfo *TRI, std::vector< CalleeSavedInfo > &CSI, unsigned &MinCSFrameIndex, unsigned &MaxCSFrameIndex) const override
assignCalleeSavedSpillSlots - Allows target to override spill slot assignment logic.
StackOffset getFrameIndexReferencePreferSP(const MachineFunction &MF, int FI, Register &FrameReg, bool IgnoreSPUpdates) const override
For Win64 AArch64 EH, the offset to the Unwind object is from the SP before the update.
bool isStackIdSafeForLocalArea(unsigned StackId) const override
This method returns whether or not it is safe for an object with the given stack id to be bundled int...
StackOffset resolveFrameIndexReference(const MachineFunction &MF, int FI, Register &FrameReg, bool PreferFP, bool ForSimm) const
unsigned getWinEHParentFrameOffset(const MachineFunction &MF) const override
The parent frame offset (aka dispFrame) is only used on X86_64 to retrieve the parent's frame pointer...
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...
The MachineFrameInfo class represents an abstract stack frame until prolog/epilog code is inserted.
MutableArrayRef - Represent a mutable reference to an array (0 or more elements consecutively in memo...
Wrapper class representing virtual and physical registers.
This class consists of common code factored out of the SmallVector class to reduce code duplication b...
StackOffset holds a fixed and a scalable offset in bytes.
Information about stack frame layout on the target.
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.