StraightLineStrengthReduce.cpp File Reference

#include "llvm/Transforms/Scalar/StraightLineStrengthReduce.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/DepthFirstIterator.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Analysis/ScalarEvolution.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/GetElementPtrTypeIterator.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Operator.h"
#include "llvm/IR/PatternMatch.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Value.h"
#include "llvm/InitializePasses.h"
#include "llvm/Pass.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/DebugCounter.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/Utils/Local.h"
#include <cassert>
#include <cstdint>
#include <limits>
#include <list>
#include <vector>

Go to the source code of this file.

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

Functions
	DEBUG_COUNTER (StraightLineStrengthReduceCounter, "slsr-counter", "Controls whether rewriteCandidateWithBasis is executed.")
	INITIALIZE_PASS_BEGIN (StraightLineStrengthReduceLegacyPass, "slsr", "Straight line strength reduction", false, false) INITIALIZE_PASS_END(StraightLineStrengthReduceLegacyPass
static bool	isGEPFoldable (GetElementPtrInst *GEP, const TargetTransformInfo *TTI)
static bool	isAddFoldable (const SCEV *Base, ConstantInt *Index, Value *Stride, TargetTransformInfo *TTI)
static bool	hasOnlyOneNonZeroIndex (GetElementPtrInst *GEP)
static bool	matchesAdd (Value *A, Value *&B, ConstantInt *&C)
static bool	matchesOr (Value *A, Value *&B, ConstantInt *&C)
static void	unifyBitWidth (APInt &A, APInt &B)

Variables
static const unsigned	UnknownAddressSpace
	slsr
Straight line strength	reduction
Straight line strength	false

Function Documentation

DEBUG_COUNTER()

DEBUG_COUNTER	(	StraightLineStrengthReduceCounter	,
		"slsr-counter"	,
		"Controls whether rewriteCandidateWithBasis is executed."	)

References DL, and llvm::PassRegistry::getPassRegistry().

hasOnlyOneNonZeroIndex()

bool hasOnlyOneNonZeroIndex ( GetElementPtrInst * GEP )

static

Definition at line 312 of file StraightLineStrengthReduce.cpp.

References llvm::dyn_cast(), GEP, and llvm::ConstantInt::isZero().

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	StraightLineStrengthReduceLegacyPass	,
		"slsr"	,
		"Straight line strength reduction"	,
		false	,
		false	)

References INITIALIZE_PASS_DEPENDENCY.

isAddFoldable()

bool isAddFoldable ( const SCEV * Base, ConstantInt * Index, Value * Stride, TargetTransformInfo * TTI )

static

Definition at line 293 of file StraightLineStrengthReduce.cpp.

References llvm::sampleprof::Base, and UnknownAddressSpace.

isGEPFoldable()

bool isGEPFoldable ( GetElementPtrInst * GEP, const TargetTransformInfo * TTI )

static

Definition at line 285 of file StraightLineStrengthReduce.cpp.

References GEP, and llvm::TargetTransformInfo::TCC_Free.

matchesAdd()

bool matchesAdd ( Value * A, Value *& B, ConstantInt *& C )

static

Definition at line 431 of file StraightLineStrengthReduce.cpp.

References A(), B(), llvm::CallingConv::C, llvm::PatternMatch::m_c_Add(), llvm::PatternMatch::m_ConstantInt(), llvm::PatternMatch::m_Value(), and llvm::PatternMatch::match().

matchesOr()

bool matchesOr ( Value * A, Value *& B, ConstantInt *& C )

static

Definition at line 436 of file StraightLineStrengthReduce.cpp.

References A(), B(), llvm::CallingConv::C, llvm::PatternMatch::m_c_Or(), llvm::PatternMatch::m_ConstantInt(), llvm::PatternMatch::m_Value(), and llvm::PatternMatch::match().

unifyBitWidth()

void unifyBitWidth ( APInt & A, APInt & B )

static

Definition at line 572 of file StraightLineStrengthReduce.cpp.

References A(), and B().

Variable Documentation

false

Straight line strength false

Definition at line 266 of file StraightLineStrengthReduce.cpp.

reduction

Straight line strength reduction

Definition at line 266 of file StraightLineStrengthReduce.cpp.

slsr

slsr

Definition at line 265 of file StraightLineStrengthReduce.cpp.

UnknownAddressSpace

const unsigned UnknownAddressSpace

static

Initial value:

=
    std::numeric_limits<unsigned>::max()

Definition at line 94 of file StraightLineStrengthReduce.cpp.

Referenced by isAddFoldable().