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/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(Mode)
#define	DUMP_AFTER(Mode)
#define	VIEW_BEFORE(Mode)
#define	VIEW_AFTER(Mode)
#define	KILL_PASS(Mode)

Functions
FunctionPass *	llvm::createARCOptAddrMode ()
static 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)

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 33 of file ARCOptAddrMode.cpp.

DUMP_AFTER

#define DUMP_AFTER

(

Mode

)

Value:

(((Mode) & 0x0002) != 0)

Definition at line 38 of file ARCOptAddrMode.cpp.

DUMP_BEFORE

#define DUMP_BEFORE

(

Mode

)

Value:

(((Mode) & 0x0001) != 0)

Definition at line 37 of file ARCOptAddrMode.cpp.

GET_INSTRMAP_INFO

#define GET_INSTRMAP_INFO

Definition at line 15 of file ARCOptAddrMode.cpp.

KILL_PASS

#define KILL_PASS

(

Mode

)

Value:

(((Mode) & 0x0010) != 0)

Definition at line 41 of file ARCOptAddrMode.cpp.

OPTADDRMODE_DESC

#define OPTADDRMODE_DESC   "ARC load/store address mode"

Definition at line 31 of file ARCOptAddrMode.cpp.

OPTADDRMODE_NAME

#define OPTADDRMODE_NAME   "arc-addr-mode"

Definition at line 32 of file ARCOptAddrMode.cpp.

VIEW_AFTER

#define VIEW_AFTER

(

Mode

)

Value:

(((Mode) & 0x0008) != 0)

Definition at line 40 of file ARCOptAddrMode.cpp.

VIEW_BEFORE

#define VIEW_BEFORE

(

Mode

)

Value:

(((Mode) & 0x0004) != 0)

Definition at line 39 of file ARCOptAddrMode.cpp.

Function Documentation

dominatesAllUsesOf()

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

static

Definition at line 139 of file ARCOptAddrMode.cpp.

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

isAddConstantOp()

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

static

Definition at line 123 of file ARCOptAddrMode.cpp.

References assert(), MI, and Sign.

isLoadStoreThatCanHandleDisplacement()

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

static

Definition at line 168 of file ARCOptAddrMode.cpp.

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

isValidIncrementOffset()

bool isValidIncrementOffset ( int64_t Off )

static

Definition at line 121 of file ARCOptAddrMode.cpp.

References llvm::isUInt(), and llvm::Off.

isValidLoadStoreOffset()

bool isValidLoadStoreOffset ( int64_t Off )

static

Definition at line 117 of file ARCOptAddrMode.cpp.

References llvm::isInt(), and llvm::Off.

Referenced by isLoadStoreThatCanHandleDisplacement().