CFLAndersAliasAnalysis.cpp File Reference

#include "llvm/Analysis/CFLAndersAliasAnalysis.h"
#include "AliasAnalysisSummary.h"
#include "CFLGraph.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseMapInfo.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/None.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/iterator_range.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/Analysis/MemoryLocation.h"
#include "llvm/IR/Argument.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/PassManager.h"
#include "llvm/IR/Type.h"
#include "llvm/InitializePasses.h"
#include "llvm/Pass.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <bitset>
#include <cassert>
#include <cstddef>
#include <cstdint>
#include <functional>
#include <utility>
#include <vector>

Include dependency graph for CFLAndersAliasAnalysis.cpp:

Go to the source code of this file.

Classes
struct	llvm::DenseMapInfo< OffsetValue >
struct	llvm::DenseMapInfo< OffsetInstantiatedValue >
class	llvm::CFLAndersAAResult::FunctionInfo

Namespaces
	llvm
	This file implements support for optimizing divisions by a constant.

Macros
#define	DEBUG_TYPE   "cfl-anders-aa"

Functions
static bool	hasReadOnlyState (StateSet Set)
static bool	hasWriteOnlyState (StateSet Set)
static Optional< InterfaceValue >	getInterfaceValue (InstantiatedValue IValue, const SmallVectorImpl< Value * > &RetVals)
static void	populateAttrMap (DenseMap< const Value *, AliasAttrs > &AttrMap, const AliasAttrMap &AMap)
static void	populateAliasMap (DenseMap< const Value *, std::vector< OffsetValue >> &AliasMap, const ReachabilitySet &ReachSet)
static void	populateExternalRelations (SmallVectorImpl< ExternalRelation > &ExtRelations, const Function &Fn, const SmallVectorImpl< Value * > &RetVals, const ReachabilitySet &ReachSet)
static void	populateExternalAttributes (SmallVectorImpl< ExternalAttribute > &ExtAttributes, const Function &Fn, const SmallVectorImpl< Value * > &RetVals, const AliasAttrMap &AMap)
static void	propagate (InstantiatedValue From, InstantiatedValue To, MatchState State, ReachabilitySet &ReachSet, std::vector< WorkListItem > &WorkList)
static void	initializeWorkList (std::vector< WorkListItem > &WorkList, ReachabilitySet &ReachSet, const CFLGraph &Graph)
static Optional< InstantiatedValue >	getNodeBelow (const CFLGraph &Graph, InstantiatedValue V)
static void	processWorkListItem (const WorkListItem &Item, const CFLGraph &Graph, ReachabilitySet &ReachSet, AliasMemSet &MemSet, std::vector< WorkListItem > &WorkList)
static AliasAttrMap	buildAttrMap (const CFLGraph &Graph, const ReachabilitySet &ReachSet)
	INITIALIZE_PASS (CFLAndersAAWrapperPass, "cfl-anders-aa", "Inclusion-Based CFL Alias Analysis", false, true) ImmutablePass *llvm

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "cfl-anders-aa"

Definition at line 90 of file CFLAndersAliasAnalysis.cpp.

Function Documentation

buildAttrMap()

static AliasAttrMap buildAttrMap ( const CFLGraph &  Graph, const ReachabilitySet &  ReachSet  )

static

Definition at line 735 of file CFLAndersAliasAnalysis.cpp.

References E, I, and llvm::cflaa::CFLGraph::value_mappings().

getInterfaceValue()

static Optional<InterfaceValue> getInterfaceValue ( InstantiatedValue  IValue, const SmallVectorImpl< Value * > &  RetVals  )

static

Definition at line 355 of file CFLAndersAliasAnalysis.cpp.

References Arg, llvm::cflaa::InstantiatedValue::DerefLevel, Index, llvm::is_contained(), llvm::None, and llvm::cflaa::InstantiatedValue::Val.

Referenced by populateExternalAttributes(), and populateExternalRelations().

getNodeBelow()

static Optional<InstantiatedValue> getNodeBelow ( const CFLGraph &  Graph, InstantiatedValue  V  )

static

Definition at line 628 of file CFLAndersAliasAnalysis.cpp.

References llvm::cflaa::InstantiatedValue::DerefLevel, None, and llvm::cflaa::InstantiatedValue::Val.

Referenced by processWorkListItem().

hasReadOnlyState()

static bool hasReadOnlyState ( StateSet  Set )

static

Definition at line 346 of file CFLAndersAliasAnalysis.cpp.

Referenced by populateExternalRelations().

hasWriteOnlyState()

static bool hasWriteOnlyState ( StateSet  Set )

static

Definition at line 350 of file CFLAndersAliasAnalysis.cpp.

Referenced by populateExternalRelations().

INITIALIZE_PASS()

INITIALIZE_PASS	(	CFLAndersAAWrapperPass	,
		"cfl-anders-aa"	,
		"Inclusion-Based CFL Alias Analysis"	,
		false	,
		true
	)

Definition at line 910 of file CFLAndersAliasAnalysis.cpp.

initializeWorkList()

static void initializeWorkList ( std::vector< WorkListItem > &  WorkList, ReachabilitySet &  ReachSet, const CFLGraph &  Graph  )

static

Definition at line 605 of file CFLAndersAliasAnalysis.cpp.

References assert(), E, I, propagate(), and llvm::cflaa::CFLGraph::value_mappings().

populateAliasMap()

static void populateAliasMap ( DenseMap< const Value *, std::vector< OffsetValue >> &  AliasMap, const ReachabilitySet &  ReachSet  )

static

Definition at line 384 of file CFLAndersAliasAnalysis.cpp.

References llvm::sort(), and llvm::cflaa::UnknownOffset.

Referenced by llvm::CFLAndersAAResult::FunctionInfo::FunctionInfo().

populateAttrMap()

static void populateAttrMap ( DenseMap< const Value *, AliasAttrs > &  AttrMap, const AliasAttrMap &  AMap  )

static

Definition at line 370 of file CFLAndersAliasAnalysis.cpp.

Referenced by llvm::CFLAndersAAResult::FunctionInfo::FunctionInfo().

populateExternalAttributes()

static void populateExternalAttributes ( SmallVectorImpl< ExternalAttribute > &  ExtAttributes, const Function &  Fn, const SmallVectorImpl< Value * > &  RetVals, const AliasAttrMap &  AMap  )

static

Definition at line 489 of file CFLAndersAliasAnalysis.cpp.

References llvm::cflaa::getExternallyVisibleAttrs(), and getInterfaceValue().

Referenced by llvm::CFLAndersAAResult::FunctionInfo::FunctionInfo().

populateExternalRelations()

static void populateExternalRelations ( SmallVectorImpl< ExternalRelation > &  ExtRelations, const Function &  Fn, const SmallVectorImpl< Value * > &  RetVals, const ReachabilitySet &  ReachSet  )

static

Definition at line 404 of file CFLAndersAliasAnalysis.cpp.

References Arg, llvm::Function::args(), llvm::SmallVectorImpl< T >::erase(), getInterfaceValue(), hasReadOnlyState(), hasWriteOnlyState(), llvm::is_contained(), llvm::sort(), llvm::unique(), and llvm::cflaa::UnknownOffset.

Referenced by llvm::CFLAndersAAResult::FunctionInfo::FunctionInfo().

processWorkListItem()

static void processWorkListItem ( const WorkListItem &  Item, const CFLGraph &  Graph, ReachabilitySet &  ReachSet, AliasMemSet &  MemSet, std::vector< WorkListItem > &  WorkList  )

static

Definition at line 636 of file CFLAndersAliasAnalysis.cpp.

References assert(), getNodeBelow(), and propagate().

propagate()

static void propagate ( InstantiatedValue  From, InstantiatedValue  To, MatchState  State, ReachabilitySet &  ReachSet, std::vector< WorkListItem > &  WorkList  )

static

Definition at line 596 of file CFLAndersAliasAnalysis.cpp.

References From.

Referenced by initializeWorkList(), and processWorkListItem().