ExpandMemCmp.cpp File Reference

#include "llvm/Transforms/Scalar/ExpandMemCmp.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/ConstantFolding.h"
#include "llvm/Analysis/DomTreeUpdater.h"
#include "llvm/Analysis/LazyBlockFrequencyInfo.h"
#include "llvm/Analysis/ProfileSummaryInfo.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/PatternMatch.h"
#include "llvm/IR/ProfDataUtils.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Transforms/Utils/Local.h"
#include "llvm/Transforms/Utils/SizeOpts.h"
#include <optional>

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "expand-memcmp"

Functions
	STATISTIC (NumMemCmpCalls, "Number of memcmp calls")
	STATISTIC (NumMemCmpNotConstant, "Number of memcmp calls without constant size")
	STATISTIC (NumMemCmpGreaterThanMax, "Number of memcmp calls with size greater than max size")
	STATISTIC (NumMemCmpInlined, "Number of inlined memcmp calls")

Variables
static cl::opt< unsigned >	MemCmpEqZeroNumLoadsPerBlock ("memcmp-num-loads-per-block", cl::Hidden, cl::init(1), cl::desc("The number of loads per basic block for inline expansion of " "memcmp that is only being compared against zero."))
static cl::opt< unsigned >	MaxLoadsPerMemcmp ("max-loads-per-memcmp", cl::Hidden, cl::desc("Set maximum number of loads used in expanded memcmp"))
static cl::opt< unsigned >	MaxLoadsPerMemcmpOptSize ("max-loads-per-memcmp-opt-size", cl::Hidden, cl::desc("Set maximum number of loads used in expanded memcmp for -Os/Oz"))

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "expand-memcmp"

Definition at line 35 of file ExpandMemCmp.cpp.

Function Documentation

STATISTIC() [1/4]

STATISTIC	(	NumMemCmpCalls	,
		"Number of memcmp calls"	)

STATISTIC() [2/4]

STATISTIC	(	NumMemCmpGreaterThanMax	,
		"Number of memcmp calls with size greater than max size"	)

STATISTIC() [3/4]

STATISTIC	(	NumMemCmpInlined	,
		"Number of inlined memcmp calls"	)

STATISTIC() [4/4]

STATISTIC	(	NumMemCmpNotConstant	,
		"Number of memcmp calls without constant size"	)

Variable Documentation

MaxLoadsPerMemcmp

cl::opt< unsigned > MaxLoadsPerMemcmp("max-loads-per-memcmp", cl::Hidden, cl::desc("Set maximum number of loads used in expanded memcmp")) ( "max-loads-per-memcmp" , cl::Hidden , cl::desc("Set maximum number of loads used in expanded memcmp")  )

static

MaxLoadsPerMemcmpOptSize

cl::opt< unsigned > MaxLoadsPerMemcmpOptSize("max-loads-per-memcmp-opt-size", cl::Hidden, cl::desc("Set maximum number of loads used in expanded memcmp for -Os/Oz")) ( "max-loads-per-memcmp-opt-size" , cl::Hidden , cl::desc("Set maximum number of loads used in expanded memcmp for -Os/Oz")  )

static

MemCmpEqZeroNumLoadsPerBlock

cl::opt< unsigned > MemCmpEqZeroNumLoadsPerBlock("memcmp-num-loads-per-block", cl::Hidden, cl::init(1), cl::desc("The number of loads per basic block for inline expansion of " "memcmp that is only being compared against zero.")) ( "memcmp-num-loads-per-block" , cl::Hidden , cl::init(1) , cl::desc("The number of loads per basic block for inline expansion of " "memcmp that is only being compared against zero.")  )

static