LoopUnrollPass.cpp File Reference

#include "llvm/Transforms/Scalar.h"
#include "llvm/Analysis/CodeMetrics.h"
#include "llvm/Analysis/LoopPass.h"
#include "llvm/Analysis/ScalarEvolution.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Transforms/Utils/UnrollLoop.h"
#include <climits>

Include dependency graph for LoopUnrollPass.cpp:

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "loop-unroll"

Functions
static unsigned	ApproximateLoopSize (const Loop *L, unsigned &NumCalls, bool &NotDuplicatable, const TargetTransformInfo &TTI)
	ApproximateLoopSize - Approximate the size of the loop. More...

Variables
static cl::opt< unsigned >	UnrollThreshold ("unroll-threshold", cl::init(150), cl::Hidden, cl::desc("The cut-off point for automatic loop unrolling"))
static cl::opt< unsigned >	UnrollCount ("unroll-count", cl::init(0), cl::Hidden, cl::desc("Use this unroll count for all loops, for testing purposes"))
static cl::opt< bool >	UnrollAllowPartial ("unroll-allow-partial", cl::init(false), cl::Hidden, cl::desc("Allows loops to be partially unrolled until ""-unroll-threshold loop size is reached."))
static cl::opt< bool >	UnrollRuntime ("unroll-runtime", cl::ZeroOrMore, cl::init(false), cl::Hidden, cl::desc("Unroll loops with run-time trip counts"))

Macro Definition Documentation

#define DEBUG_TYPE   "loop-unroll"

Definition at line 15 of file LoopUnrollPass.cpp.

Function Documentation

static unsigned ApproximateLoopSize ( const Loop *  L, unsigned &  NumCalls, bool &  NotDuplicatable, const TargetTransformInfo &  TTI  )

static

ApproximateLoopSize - Approximate the size of the loop.

Definition at line 128 of file LoopUnrollPass.cpp.

References llvm::CodeMetrics::analyzeBasicBlock(), llvm::LoopBase< N, M >::block_begin(), llvm::LoopBase< N, M >::block_end(), I, Metrics, llvm::CodeMetrics::notDuplicatable, llvm::CodeMetrics::NumInlineCandidates, and llvm::CodeMetrics::NumInsts.

Variable Documentation

cl::opt<bool> UnrollAllowPartial("unroll-allow-partial", cl::init(false), cl::Hidden, cl::desc("Allows loops to be partially unrolled until ""-unroll-threshold loop size is reached."))

static

cl::opt<unsigned> UnrollCount("unroll-count", cl::init(0), cl::Hidden, cl::desc("Use this unroll count for all loops, for testing purposes"))

static

cl::opt<bool> UnrollRuntime("unroll-runtime", cl::ZeroOrMore, cl::init(false), cl::Hidden, cl::desc("Unroll loops with run-time trip counts"))

static

cl::opt<unsigned> UnrollThreshold("unroll-threshold", cl::init(150), cl::Hidden, cl::desc("The cut-off point for automatic loop unrolling"))

static