LoadStoreOpt.cpp File Reference

This file implements the LoadStoreOpt optimization pass. More...

#include "llvm/CodeGen/GlobalISel/LoadStoreOpt.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/Analysis/MemoryLocation.h"
#include "llvm/Analysis/OptimizationRemarkEmitter.h"
#include "llvm/CodeGen/GlobalISel/GenericMachineInstrs.h"
#include "llvm/CodeGen/GlobalISel/LegalizerInfo.h"
#include "llvm/CodeGen/GlobalISel/MIPatternMatch.h"
#include "llvm/CodeGen/GlobalISel/Utils.h"
#include "llvm/CodeGen/LowLevelType.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineOptimizationRemarkEmitter.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/Register.h"
#include "llvm/CodeGen/TargetLowering.h"
#include "llvm/CodeGen/TargetOpcodes.h"
#include "llvm/IR/DebugInfoMetadata.h"
#include "llvm/InitializePasses.h"
#include "llvm/Support/AtomicOrdering.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
#include <algorithm>

Include dependency graph for LoadStoreOpt.cpp:

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "loadstore-opt"

Functions
	STATISTIC (NumStoresMerged, "Number of stores merged")
	INITIALIZE_PASS_BEGIN (LoadStoreOpt, DEBUG_TYPE, "Generic memory optimizations", false, false) INITIALIZE_PASS_END(LoadStoreOpt
static bool	isInstHardMergeHazard (MachineInstr &MI)
	Returns true if the instruction creates an unavoidable hazard that forces a boundary between store merge candidates.

Variables
const unsigned	MaxStoreSizeToForm = 128
	DEBUG_TYPE
Generic memory	optimizations
Generic memory	false

Detailed Description

This file implements the LoadStoreOpt optimization pass.

Definition in file LoadStoreOpt.cpp.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "loadstore-opt"

Definition at line 40 of file LoadStoreOpt.cpp.

Function Documentation

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	LoadStoreOpt	,
		DEBUG_TYPE	,
		"Generic memory optimizations"	,
		false	,
		false
	)

isInstHardMergeHazard()

static bool isInstHardMergeHazard ( MachineInstr &  MI )

static

Returns true if the instruction creates an unavoidable hazard that forces a boundary between store merge candidates.

Definition at line 285 of file LoadStoreOpt.cpp.

References MI.

STATISTIC()

STATISTIC	(	NumStoresMerged	,
		"Number of stores merged"
	)

Variable Documentation

DEBUG_TYPE

DEBUG_TYPE

Definition at line 53 of file LoadStoreOpt.cpp.

false

Generic memory false

Definition at line 54 of file LoadStoreOpt.cpp.

MaxStoreSizeToForm

const unsigned MaxStoreSizeToForm = 128

Definition at line 48 of file LoadStoreOpt.cpp.

optimizations

Generic memory optimizations

Definition at line 53 of file LoadStoreOpt.cpp.