InstCombineNegator.cpp File Reference

#include "InstCombineInternal.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Analysis/TargetFolder.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/Constant.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/PatternMatch.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Use.h"
#include "llvm/IR/User.h"
#include "llvm/IR/Value.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/DebugCounter.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Transforms/InstCombine/InstCombiner.h"
#include <cassert>
#include <cstdint>
#include <functional>
#include <type_traits>
#include <utility>

Go to the source code of this file.

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Macros
#define	DEBUG_TYPE   "instcombine"

Functions
	STATISTIC (NegatorTotalNegationsAttempted, "Negator: Number of negations attempted to be sinked")
	STATISTIC (NegatorNumTreesNegated, "Negator: Number of negations successfully sinked")
	STATISTIC (NegatorMaxDepthVisited, "Negator: Maximal traversal depth ever " "reached while attempting to sink negation")
	STATISTIC (NegatorTimesDepthLimitReached, "Negator: How many times did the traversal depth limit was reached " "during sinking")
	STATISTIC (NegatorNumValuesVisited, "Negator: Total number of values visited during attempts to sink negation")
	STATISTIC (NegatorNumNegationsFoundInCache, "Negator: How many negations did we retrieve/reuse from cache")
	STATISTIC (NegatorMaxTotalValuesVisited, "Negator: Maximal number of values ever visited while attempting to " "sink negation")
	STATISTIC (NegatorNumInstructionsCreatedTotal, "Negator: Number of new negated instructions created, total")
	STATISTIC (NegatorMaxInstructionsCreated, "Negator: Maximal number of new instructions created during negation " "attempt")
	STATISTIC (NegatorNumInstructionsNegatedSuccess, "Negator: Number of new negated instructions created in successful " "negation sinking attempts")
	DEBUG_COUNTER (NegatorCounter, "instcombine-negator", "Controls Negator transformations in InstCombine pass")

Variables
static cl::opt< bool >	NegatorEnabled ("instcombine-negator-enabled", cl::init(true), cl::desc("Should we attempt to sink negations?"))
static cl::opt< unsigned >	NegatorMaxDepth ("instcombine-negator-max-depth", cl::init(NegatorDefaultMaxDepth), cl::desc("What is the maximal lookup depth when trying to " "check for viability of negation sinking."))

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "instcombine"

Definition at line 56 of file InstCombineNegator.cpp.

Function Documentation

DEBUG_COUNTER()

DEBUG_COUNTER	(	NegatorCounter	,
		"instcombine-negator"	,
		"Controls Negator transformations in InstCombine pass"
	)

STATISTIC() [1/10]

STATISTIC	(	NegatorMaxDepthVisited	,
		"Negator: Maximal traversal depth ever " "reached while attempting to sink negation"
	)

STATISTIC() [2/10]

STATISTIC	(	NegatorMaxInstructionsCreated	,
		"Negator: Maximal number of new instructions created during negation " "attempt"
	)

STATISTIC() [3/10]

STATISTIC	(	NegatorMaxTotalValuesVisited	,
		"Negator: Maximal number of values ever visited while attempting to " "sink negation"
	)

STATISTIC() [4/10]

STATISTIC	(	NegatorNumInstructionsCreatedTotal	,
		"Negator: Number of new negated instructions	created,
		total"
	)

STATISTIC() [5/10]

STATISTIC	(	NegatorNumInstructionsNegatedSuccess	,
		"Negator: Number of new negated instructions created in successful " "negation sinking attempts"
	)

STATISTIC() [6/10]

STATISTIC	(	NegatorNumNegationsFoundInCache	,
		"Negator: How many negations did we retrieve/reuse from cache"
	)

STATISTIC() [7/10]

STATISTIC	(	NegatorNumTreesNegated	,
		"Negator: Number of negations successfully sinked"
	)

STATISTIC() [8/10]

STATISTIC	(	NegatorNumValuesVisited	,
		"Negator: Total number of values visited during attempts to sink negation"
	)

STATISTIC() [9/10]

STATISTIC	(	NegatorTimesDepthLimitReached	,
		"Negator: How many times did the traversal depth limit was reached " "during sinking"
	)

STATISTIC() [10/10]

STATISTIC	(	NegatorTotalNegationsAttempted	,
		"Negator: Number of negations attempted to be sinked"
	)

Variable Documentation

NegatorEnabled

cl::opt< bool > NegatorEnabled("instcombine-negator-enabled", cl::init(true), cl::desc("Should we attempt to sink negations?")) ( "instcombine-negator-enabled"  , cl::init(true)  , cl::desc("Should we attempt to sink negations?")    )

static

Referenced by llvm::Negator::Negate().

NegatorMaxDepth

cl::opt< unsigned > NegatorMaxDepth("instcombine-negator-max-depth", cl::init(NegatorDefaultMaxDepth), cl::desc("What is the maximal lookup depth when trying to " "check for viability of negation sinking.")) ( "instcombine-negator-max-depth"  , cl::init(NegatorDefaultMaxDepth)  , cl::desc("What is the maximal lookup depth when trying to " "check for viability of negation sinking.")    )

static