AArch64AdvSIMDScalarPass.cpp File Reference

#include "AArch64.h"
#include "AArch64InstrInfo.h"
#include "AArch64RegisterInfo.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"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "aarch64-simd-scalar"
#define	AARCH64_ADVSIMD_NAME   "AdvSIMD Scalar Operation Optimization"

Functions
	STATISTIC (NumScalarInsnsUsed, "Number of scalar instructions used")
	STATISTIC (NumCopiesDeleted, "Number of cross-class copies deleted")
	STATISTIC (NumCopiesInserted, "Number of cross-class copies inserted")
	INITIALIZE_PASS (AArch64AdvSIMDScalarLegacy, "aarch64-simd-scalar", AARCH64_ADVSIMD_NAME, false, false) PreservedAnalyses AArch64AdvSIMDScalarPass
static bool	isGPR64 (unsigned Reg, unsigned SubReg, const MachineRegisterInfo *MRI)
static bool	isFPR64 (unsigned Reg, unsigned SubReg, const MachineRegisterInfo *MRI)
static MachineOperand *	getSrcFromCopy (MachineInstr *MI, const MachineRegisterInfo *MRI, unsigned &SubReg)
static unsigned	getTransformOpcode (unsigned Opc)
static bool	isTransformable (const MachineInstr &MI)
static MachineInstr *	insertCopy (const TargetInstrInfo *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)

Macro Definition Documentation

AARCH64_ADVSIMD_NAME

#define AARCH64_ADVSIMD_NAME   "AdvSIMD Scalar Operation Optimization"

Definition at line 62 of file AArch64AdvSIMDScalarPass.cpp.

Referenced by INITIALIZE_PASS().

DEBUG_TYPE

#define DEBUG_TYPE   "aarch64-simd-scalar"

Definition at line 49 of file AArch64AdvSIMDScalarPass.cpp.

Function Documentation

getSrcFromCopy()

MachineOperand * getSrcFromCopy ( MachineInstr * MI, const MachineRegisterInfo * MRI, unsigned & SubReg )

static

Definition at line 141 of file AArch64AdvSIMDScalarPass.cpp.

References isFPR64(), isGPR64(), and MI.

getTransformOpcode()

unsigned getTransformOpcode ( unsigned Opc )

static

Definition at line 178 of file AArch64AdvSIMDScalarPass.cpp.

References Opc.

Referenced by isTransformable().

INITIALIZE_PASS()

INITIALIZE_PASS	(	AArch64AdvSIMDScalarLegacy	,
		"aarch64-simd-scalar"	,
		AARCH64_ADVSIMD_NAME	,
		false	,
		false	)

Definition at line 104 of file AArch64AdvSIMDScalarPass.cpp.

References AARCH64_ADVSIMD_NAME, llvm::PreservedAnalyses::all(), Changed, llvm::getMachineFunctionPassPreservedAnalyses(), and llvm::PreservedAnalyses::preserveSet().

insertCopy()

MachineInstr * insertCopy ( const TargetInstrInfo * TII, MachineInstr & MI, unsigned Dst, unsigned Src, bool IsKill )

static

Definition at line 288 of file AArch64AdvSIMDScalarPass.cpp.

References llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), llvm::dbgs(), llvm::getKillRegState(), LLVM_DEBUG, MI, and TII.

isFPR64()

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

static

Definition at line 127 of file AArch64AdvSIMDScalarPass.cpp.

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

Referenced by getSrcFromCopy().

isGPR64()

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

static

Definition at line 118 of file AArch64AdvSIMDScalarPass.cpp.

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

Referenced by getSrcFromCopy().

isTransformable()

bool isTransformable ( const MachineInstr & MI )

static

Definition at line 198 of file AArch64AdvSIMDScalarPass.cpp.

References getTransformOpcode(), MI, and Opc.

STATISTIC() [1/3]

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

STATISTIC() [2/3]

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

STATISTIC() [3/3]

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

Variable Documentation

TransformAll

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

static