llvm::AArch64PrologueEmitter Class Reference

A helper class for emitting the prologue. More...

#include "Target/AArch64/AArch64PrologueEpilogue.h"

Inheritance diagram for llvm::AArch64PrologueEmitter:

Public Member Functions
	AArch64PrologueEmitter (MachineFunction &MF, MachineBasicBlock &MBB, const AArch64FrameLowering &AFL)
void	emitPrologue ()
	Emit the prologue.
	~AArch64PrologueEmitter ()
Public Member Functions inherited from llvm::AArch64PrologueEpilogueCommon
	AArch64PrologueEpilogueCommon (MachineFunction &MF, MachineBasicBlock &MBB, const AArch64FrameLowering &AFL)

Additional Inherited Members
Protected Member Functions inherited from llvm::AArch64PrologueEpilogueCommon
bool	requiresGetVGCall () const
bool	isVGInstruction (MachineBasicBlock::iterator MBBI, const TargetLowering &TLI) const
MachineBasicBlock::iterator	convertCalleeSaveRestoreToSPPrePostIncDec (MachineBasicBlock::iterator MBBI, const DebugLoc &DL, int CSStackSizeInc, bool EmitCFI, MachineInstr::MIFlag FrameFlag=MachineInstr::FrameSetup, int CFAOffset=0) const
void	fixupCalleeSaveRestoreStackOffset (MachineInstr &MI, uint64_t LocalStackSize) const
bool	shouldCombineCSRLocalStackBump (uint64_t StackBumpBytes) const
Protected Attributes inherited from llvm::AArch64PrologueEpilogueCommon
MachineFunction &	MF
MachineBasicBlock &	MBB
const MachineFrameInfo &	MFI
const AArch64Subtarget &	Subtarget
const AArch64FrameLowering &	AFL
const AArch64RegisterInfo &	RegInfo
bool	HasFP = false
bool	EmitCFI = false
bool	IsFunclet = false
bool	NeedsWinCFI = false
bool	HomPrologEpilog = false
bool	HasWinCFI = false
const TargetInstrInfo *	TII = nullptr
AArch64FunctionInfo *	AFI = nullptr

Detailed Description

A helper class for emitting the prologue.

Substantial new functionality should be factored into a new method. Where possible "emit*" methods should be const, and any flags that change how the prologue is emitted should be set in the constructor.

Definition at line 83 of file AArch64PrologueEpilogue.h.

Constructor & Destructor Documentation

AArch64PrologueEmitter()

llvm::AArch64PrologueEmitter::AArch64PrologueEmitter	(	MachineFunction &	MF,
		MachineBasicBlock &	MBB,
		const AArch64FrameLowering &	AFL )

Definition at line 325 of file AArch64PrologueEpilogue.cpp.

References llvm::AArch64PrologueEpilogueCommon::AArch64PrologueEpilogueCommon(), llvm::AArch64PrologueEpilogueCommon::AFI, llvm::AArch64PrologueEpilogueCommon::AFL, llvm::AArch64PrologueEpilogueCommon::EmitCFI, getFunction(), llvm::AArch64PrologueEpilogueCommon::HomPrologEpilog, llvm::AArch64PrologueEpilogueCommon::IsFunclet, llvm::AArch64PrologueEpilogueCommon::MBB, and llvm::AArch64PrologueEpilogueCommon::MF.

~AArch64PrologueEmitter()

llvm::AArch64PrologueEmitter::~AArch64PrologueEmitter ( )

inline

Definition at line 91 of file AArch64PrologueEpilogue.h.

References llvm::AArch64PrologueEpilogueCommon::HasWinCFI, and llvm::AArch64PrologueEpilogueCommon::MF.

Member Function Documentation

emitPrologue()

void llvm::AArch64PrologueEmitter::emitPrologue

(

)

Emit the prologue.

Definition at line 531 of file AArch64PrologueEpilogue.cpp.

References llvm::MachineInstrBuilder::addReg(), llvm::AArch64PrologueEpilogueCommon::AFI, llvm::AArch64PrologueEpilogueCommon::AFL, assert(), llvm::BuildMI(), llvm::classifyEHPersonality(), llvm::AArch64PrologueEpilogueCommon::convertCalleeSaveRestoreToSPPrePostIncDec(), llvm::createDefCFA(), llvm::dbgs(), DL, llvm::AArch64PrologueEpilogueCommon::EmitCFI, llvm::emitFrameOffset(), llvm::AArch64PrologueEpilogueCommon::fixupCalleeSaveRestoreStackOffset(), llvm::MachineInstr::FrameSetup, llvm::StackOffset::getFixed(), llvm::StackOffset::getFixed(), llvm::StackOffset::getScalable(), llvm::CallingConv::GHC, llvm::AArch64PrologueEpilogueCommon::HasFP, llvm::AArch64PrologueEpilogueCommon::HasWinCFI, llvm::AArch64PrologueEpilogueCommon::HomPrologEpilog, llvm::CFIInstBuilder::insertCFIInst(), llvm::isAsynchronousEHPersonality(), llvm::AArch64PrologueEpilogueCommon::IsFunclet, llvm::isSVECalleeSave(), llvm::AArch64PrologueEpilogueCommon::isVGInstruction(), LLVM_DEBUG, llvm::AArch64PrologueEpilogueCommon::MBB, MBBI, llvm::AArch64PrologueEpilogueCommon::MF, llvm::AArch64PrologueEpilogueCommon::MFI, llvm::AArch64PrologueEpilogueCommon::NeedsWinCFI, llvm::AArch64PrologueEpilogueCommon::RegInfo, llvm::reportFatalUsageError(), llvm::MachineInstrBuilder::setMIFlag(), llvm::AArch64PrologueEpilogueCommon::Subtarget, and llvm::AArch64PrologueEpilogueCommon::TII.

Referenced by llvm::AArch64FrameLowering::emitPrologue().

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

• lib/Target/AArch64/AArch64PrologueEpilogue.h
• lib/Target/AArch64/AArch64PrologueEpilogue.cpp