ARCOptAddrMode.cpp File Reference

This pass folds LD/ST + ADD pairs into Pre/Post-increment form of load/store instructions. More...

#include "ARC.h"
#include "ARCInstrInfo.h"
#include "ARCTargetMachine.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineDominators.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/IR/Function.h"
#include "llvm/InitializePasses.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.

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Macros
#define	GET_INSTRMAP_INFO
#define	OPTADDRMODE_DESC   "ARC load/store address mode"
#define	OPTADDRMODE_NAME   "arc-addr-mode"
#define	DEBUG_TYPE   "arc-addr-mode"
#define	DUMP_BEFORE()   ((ArcKillAddrMode & 0x0001) != 0)
#define	DUMP_AFTER()   ((ArcKillAddrMode & 0x0002) != 0)
#define	VIEW_BEFORE()   ((ArcKillAddrMode & 0x0004) != 0)
#define	VIEW_AFTER()   ((ArcKillAddrMode & 0x0008) != 0)
#define	KILL_PASS()   ((ArcKillAddrMode & 0x0010) != 0)

Functions
FunctionPass *	llvm::createARCOptAddrMode ()
void	llvm::initializeARCOptAddrModePass (PassRegistry &)
	INITIALIZE_PASS_BEGIN (ARCOptAddrMode, OPTADDRMODE_NAME, OPTADDRMODE_DESC, false, false) INITIALIZE_PASS_END(ARCOptAddrMode
static false bool	isValidLoadStoreOffset (int64_t Off)
static bool	isValidIncrementOffset (int64_t Off)
static bool	isAddConstantOp (const MachineInstr &MI, int64_t &Amount)
static bool	dominatesAllUsesOf (const MachineInstr *MI, unsigned VReg, MachineDominatorTree *MDT, MachineRegisterInfo *MRI)
static bool	isLoadStoreThatCanHandleDisplacement (const TargetInstrInfo *TII, const MachineInstr &MI, int64_t Disp)

Variables
static cl::opt< unsigned >	llvm::ArcKillAddrMode ("arc-kill-addr-mode", cl::init(0), cl::ReallyHidden)
	OPTADDRMODE_NAME
	OPTADDRMODE_DESC
	false

Detailed Description

This pass folds LD/ST + ADD pairs into Pre/Post-increment form of load/store instructions.

Definition in file ARCOptAddrMode.cpp.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "arc-addr-mode"

Definition at line 34 of file ARCOptAddrMode.cpp.

DUMP_AFTER

#define DUMP_AFTER

(

)

((ArcKillAddrMode & 0x0002) != 0)

Definition at line 42 of file ARCOptAddrMode.cpp.

DUMP_BEFORE

#define DUMP_BEFORE

(

)

((ArcKillAddrMode & 0x0001) != 0)

Definition at line 41 of file ARCOptAddrMode.cpp.

GET_INSTRMAP_INFO

#define GET_INSTRMAP_INFO

Definition at line 15 of file ARCOptAddrMode.cpp.

KILL_PASS

#define KILL_PASS

(

)

((ArcKillAddrMode & 0x0010) != 0)

Definition at line 45 of file ARCOptAddrMode.cpp.

OPTADDRMODE_DESC

#define OPTADDRMODE_DESC   "ARC load/store address mode"

Definition at line 32 of file ARCOptAddrMode.cpp.

OPTADDRMODE_NAME

#define OPTADDRMODE_NAME   "arc-addr-mode"

Definition at line 33 of file ARCOptAddrMode.cpp.

VIEW_AFTER

#define VIEW_AFTER

(

)

((ArcKillAddrMode & 0x0008) != 0)

Definition at line 44 of file ARCOptAddrMode.cpp.

VIEW_BEFORE

#define VIEW_BEFORE

(

)

((ArcKillAddrMode & 0x0004) != 0)

Definition at line 43 of file ARCOptAddrMode.cpp.

Function Documentation

dominatesAllUsesOf()

static bool dominatesAllUsesOf ( const MachineInstr *  MI, unsigned  VReg, MachineDominatorTree *  MDT, MachineRegisterInfo *  MRI  )

static

Definition at line 150 of file ARCOptAddrMode.cpp.

References assert(), llvm::MachineDominatorTree::dominates(), llvm::MachineBasicBlock::empty(), llvm::User::getOperand(), llvm::Use::getOperandNo(), llvm::Register::isVirtualRegister(), MBB, MI, MRI, and llvm::MachineBasicBlock::rbegin().

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	ARCOptAddrMode	,
		OPTADDRMODE_NAME	,
		OPTADDRMODE_DESC	,
		false	,
		false
	)

isAddConstantOp()

static bool isAddConstantOp ( const MachineInstr &  MI, int64_t &  Amount  )

static

Definition at line 134 of file ARCOptAddrMode.cpp.

References assert(), and MI.

isLoadStoreThatCanHandleDisplacement()

static bool isLoadStoreThatCanHandleDisplacement ( const TargetInstrInfo *  TII, const MachineInstr &  MI, int64_t  Disp  )

static

Definition at line 179 of file ARCOptAddrMode.cpp.

References llvm::HexagonInstrInfo::getBaseAndOffsetPosition(), llvm::MachineOperand::getImm(), llvm::MachineOperand::isImm(), isValidLoadStoreOffset(), MI, llvm::Offset, and TII.

isValidIncrementOffset()

static bool isValidIncrementOffset ( int64_t  Off )

static

Definition at line 132 of file ARCOptAddrMode.cpp.

isValidLoadStoreOffset()

static false bool isValidLoadStoreOffset ( int64_t  Off )

static

Definition at line 128 of file ARCOptAddrMode.cpp.

Referenced by isLoadStoreThatCanHandleDisplacement().

Variable Documentation

false

false

Definition at line 123 of file ARCOptAddrMode.cpp.

OPTADDRMODE_DESC

OPTADDRMODE_DESC

Definition at line 123 of file ARCOptAddrMode.cpp.

OPTADDRMODE_NAME

OPTADDRMODE_NAME

Definition at line 123 of file ARCOptAddrMode.cpp.