AArch64FrameLowering.cpp File Reference

#include "AArch64FrameLowering.h"
#include "AArch64InstrInfo.h"
#include "AArch64MachineFunctionInfo.h"
#include "AArch64Subtarget.h"
#include "AArch64TargetMachine.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/RegisterScavenging.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Function.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"

Include dependency graph for AArch64FrameLowering.cpp:

Go to the source code of this file.

Defines
#define	DEBUG_TYPE   "frame-info"
Functions
	STATISTIC (NumRedZoneFunctions,"Number of functions using red zone")
static unsigned	estimateStackSize (MachineFunction &MF)
static bool	isCalleeSavedRegister (unsigned Reg, const MCPhysReg *CSRegs)
static bool	isCSRestore (MachineInstr *MI, const MCPhysReg *CSRegs)
static unsigned	getPrologueDeath (MachineFunction &MF, unsigned Reg)
Variables
static cl::opt< bool >	EnableRedZone ("aarch64-redzone", cl::desc("enable use of redzone on AArch64"), cl::init(false), cl::Hidden)

---

Define Documentation

#define DEBUG_TYPE   "frame-info"

Definition at line 34 of file AArch64FrameLowering.cpp.

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Function Documentation

static unsigned estimateStackSize

(

MachineFunction &

MF

)

[static]

Definition at line 42 of file AArch64FrameLowering.cpp.

References Align(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFrameInfo::getObjectAlignment(), llvm::MachineFrameInfo::getObjectIndexBegin(), llvm::MachineFrameInfo::getObjectIndexEnd(), llvm::MachineFrameInfo::getObjectOffset(), llvm::MachineFrameInfo::getObjectSize(), and llvm::MachineFrameInfo::isDeadObjectIndex().

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

static unsigned getPrologueDeath	(	MachineFunction &	MF,
		unsigned	Reg
	)		[static]

Definition at line 605 of file AArch64FrameLowering.cpp.

References llvm::MachineFunction::getFrameInfo(), llvm::getKillRegState(), llvm::MachineFunction::getRegInfo(), llvm::MachineRegisterInfo::isLiveIn(), and llvm::MachineFrameInfo::isReturnAddressTaken().

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

static bool isCalleeSavedRegister	(	unsigned	Reg,
		const MCPhysReg *	CSRegs
	)		[static]

Definition at line 406 of file AArch64FrameLowering.cpp.

static bool isCSRestore	(	MachineInstr *	MI,
		const MCPhysReg *	CSRegs
	)		[static]

Definition at line 413 of file AArch64FrameLowering.cpp.

References llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), and llvm::isCalleeSavedRegister().

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

STATISTIC	(	NumRedZoneFunctions	,
		"Number of functions using red zone"
	)

---

Variable Documentation

cl::opt<bool> EnableRedZone("aarch64-redzone", cl::desc("enable use of redzone on AArch64"), cl::init(false), cl::Hidden) [static]

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