AArch64AdvSIMDScalarPass.cpp File Reference

#include "AArch64.h"
#include "AArch64InstrInfo.h"
#include "AArch64RegisterInfo.h"
#include "AArch64Subtarget.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"

Include dependency graph for AArch64AdvSIMDScalarPass.cpp:

Go to the source code of this file.

Defines
#define	DEBUG_TYPE   "aarch64-simd-scalar"
Functions
	STATISTIC (NumScalarInsnsUsed,"Number of scalar instructions used")
	STATISTIC (NumCopiesDeleted,"Number of cross-class copies deleted")
	STATISTIC (NumCopiesInserted,"Number of cross-class copies inserted")
static bool	isGPR64 (unsigned Reg, unsigned SubReg, const MachineRegisterInfo *MRI)
static bool	isFPR64 (unsigned Reg, unsigned SubReg, const MachineRegisterInfo *MRI)
static unsigned	getSrcFromCopy (const MachineInstr *MI, const MachineRegisterInfo *MRI, unsigned &SubReg)
static int	getTransformOpcode (unsigned Opc)
static bool	isTransformable (const MachineInstr *MI)
static MachineInstr *	insertCopy (const AArch64InstrInfo *TII, MachineInstr *MI, unsigned Dst, unsigned Src, bool IsKill)
Variables
static cl::opt< bool >	TransformAll ("aarch64-simd-scalar-force-all", cl::desc("Force use of AdvSIMD scalar instructions everywhere"), cl::init(false), cl::Hidden)

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Define Documentation

#define DEBUG_TYPE   "aarch64-simd-scalar"

Definition at line 51 of file AArch64AdvSIMDScalarPass.cpp.

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Function Documentation

static unsigned getSrcFromCopy	(	const MachineInstr *	MI,
		const MachineRegisterInfo *	MRI,
		unsigned &	SubReg
	)		[static]

Definition at line 124 of file AArch64AdvSIMDScalarPass.cpp.

References llvm::TargetOpcode::COPY, llvm::MachineOperand::getImm(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::MachineOperand::getSubReg(), isFPR64(), and isGPR64().

static int getTransformOpcode

(

unsigned

Opc

)

[static]

Definition at line 161 of file AArch64AdvSIMDScalarPass.cpp.

Referenced by isTransformable().

static MachineInstr* insertCopy	(	const AArch64InstrInfo *	TII,
		MachineInstr *	MI,
		unsigned	Dst,
		unsigned	Src,
		bool	IsKill
	)		[static]

Definition at line 271 of file AArch64AdvSIMDScalarPass.cpp.

References llvm::BuildMI(), llvm::TargetOpcode::COPY, llvm::dbgs(), DEBUG, llvm::MachineInstr::getDebugLoc(), llvm::getKillRegState(), llvm::MachineInstr::getParent(), and llvm::AArch64CC::MI.

static bool isFPR64	(	unsigned	Reg,
		unsigned	SubReg,
		const MachineRegisterInfo *	MRI
	)		[static]

Definition at line 110 of file AArch64AdvSIMDScalarPass.cpp.

References contains(), llvm::MachineRegisterInfo::getRegClass(), llvm::TargetRegisterClass::hasSuperClassEq(), and llvm::TargetRegisterInfo::isVirtualRegister().

Referenced by getSrcFromCopy().

static bool isGPR64	(	unsigned	Reg,
		unsigned	SubReg,
		const MachineRegisterInfo *	MRI
	)		[static]

Definition at line 101 of file AArch64AdvSIMDScalarPass.cpp.

References llvm::MachineRegisterInfo::getRegClass(), llvm::TargetRegisterClass::hasSuperClassEq(), and llvm::TargetRegisterInfo::isVirtualRegister().

Referenced by getSrcFromCopy().

static bool isTransformable

(

const MachineInstr *

MI

)

[static]

Definition at line 181 of file AArch64AdvSIMDScalarPass.cpp.

References llvm::MachineInstr::getOpcode(), and getTransformOpcode().

STATISTIC	(	NumScalarInsnsUsed	,
		"Number of scalar instructions used"
	)

STATISTIC	(	NumCopiesDeleted	,
		"Number of cross-class copies deleted"
	)

STATISTIC	(	NumCopiesInserted	,
		"Number of cross-class copies inserted"
	)

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Variable Documentation

cl::opt<bool> TransformAll("aarch64-simd-scalar-force-all", cl::desc("Force use of AdvSIMD scalar instructions everywhere"), cl::init(false), cl::Hidden) [static]