LoopDataPrefetch.cpp File Reference

#include "llvm/Transforms/Scalar/LoopDataPrefetch.h"
#include "llvm/InitializePasses.h"
#include "llvm/ADT/DepthFirstIterator.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/AssumptionCache.h"
#include "llvm/Analysis/CodeMetrics.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/OptimizationRemarkEmitter.h"
#include "llvm/Analysis/ScalarEvolution.h"
#include "llvm/Analysis/ScalarEvolutionExpressions.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/Function.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/Utils.h"
#include "llvm/Transforms/Utils/ScalarEvolutionExpander.h"

Go to the source code of this file.

Classes
struct	Prefetch
	A record for a potential prefetch made during the initial scan of the loop. More...

Macros
#define	DEBUG_TYPE   "loop-data-prefetch"

Functions
	STATISTIC (NumPrefetches, "Number of prefetches inserted")
	INITIALIZE_PASS_BEGIN (LoopDataPrefetchLegacyPass, "loop-data-prefetch", "Loop Data Prefetch", false, false) INITIALIZE_PASS_END(LoopDataPrefetchLegacyPass

Variables
static cl::opt< bool >	PrefetchWrites ("loop-prefetch-writes", cl::Hidden, cl::init(false), cl::desc("Prefetch write addresses"))
static cl::opt< unsigned >	PrefetchDistance ("prefetch-distance", cl::desc("Number of instructions to prefetch ahead"), cl::Hidden)
static cl::opt< unsigned >	MinPrefetchStride ("min-prefetch-stride", cl::desc("Min stride to add prefetches"), cl::Hidden)
static cl::opt< unsigned >	MaxPrefetchIterationsAhead ("max-prefetch-iters-ahead", cl::desc("Max number of iterations to prefetch ahead"), cl::Hidden)
loop data	prefetch
loop data Loop Data	Prefetch
loop data Loop Data	false

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "loop-data-prefetch"

Definition at line 33 of file LoopDataPrefetch.cpp.

Function Documentation

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	LoopDataPrefetchLegacyPass	,
		"loop-data-prefetch"	,
		"Loop Data Prefetch"	,
		false	,
		false
	)

STATISTIC()

STATISTIC	(	NumPrefetches	,
		"Number of prefetches inserted"
	)

Variable Documentation

false

loop data Loop Data false

Definition at line 149 of file LoopDataPrefetch.cpp.

MaxPrefetchIterationsAhead

cl::opt< unsigned > MaxPrefetchIterationsAhead("max-prefetch-iters-ahead", cl::desc("Max number of iterations to prefetch ahead"), cl::Hidden) ( "max-prefetch-iters-ahead"  , cl::desc("Max number of iterations to prefetch ahead")  , cl::Hidden    )

static

MinPrefetchStride

cl::opt< unsigned > MinPrefetchStride("min-prefetch-stride", cl::desc("Min stride to add prefetches"), cl::Hidden) ( "min-prefetch-stride"  , cl::desc("Min stride to add prefetches")  , cl::Hidden    )

static

prefetch

loop data prefetch

Definition at line 148 of file LoopDataPrefetch.cpp.

Prefetch

loop data Loop Data Prefetch

Definition at line 149 of file LoopDataPrefetch.cpp.

PrefetchDistance

cl::opt< unsigned > PrefetchDistance("prefetch-distance", cl::desc("Number of instructions to prefetch ahead"), cl::Hidden) ( "prefetch-distance"  , cl::desc("Number of instructions to prefetch ahead")  , cl::Hidden    )

static

PrefetchWrites

cl::opt< bool > PrefetchWrites("loop-prefetch-writes", cl::Hidden, cl::init(false), cl::desc("Prefetch write addresses")) ( "loop-prefetch-writes"  , cl::Hidden  , cl::init(false)  , cl::desc("Prefetch write addresses")    )

static