#include <Instructions.h>

Inheritance diagram for llvm::LoadInst:

Collaboration diagram for llvm::LoadInst:

Public Member Functions
	LoadInst (Value Ptr, const Twine &NameStr, Instruction InsertBefore)

	LoadInst (Value Ptr, const Twine &NameStr, BasicBlock InsertAtEnd)

	LoadInst (Value Ptr, const Twine &NameStr, bool isVolatile=false, Instruction InsertBefore=0)

	LoadInst (Value Ptr, const Twine &NameStr, bool isVolatile, BasicBlock InsertAtEnd)

	LoadInst (Value Ptr, const Twine &NameStr, bool isVolatile, unsigned Align, Instruction InsertBefore=0)

	LoadInst (Value Ptr, const Twine &NameStr, bool isVolatile, unsigned Align, BasicBlock InsertAtEnd)

	LoadInst (Value Ptr, const Twine &NameStr, bool isVolatile, unsigned Align, AtomicOrdering Order, SynchronizationScope SynchScope=CrossThread, Instruction InsertBefore=0)

	LoadInst (Value Ptr, const Twine &NameStr, bool isVolatile, unsigned Align, AtomicOrdering Order, SynchronizationScope SynchScope, BasicBlock InsertAtEnd)

	LoadInst (Value Ptr, const char NameStr, Instruction *InsertBefore)

	LoadInst (Value Ptr, const char NameStr, BasicBlock *InsertAtEnd)

	LoadInst (Value Ptr, const char NameStr=0, bool isVolatile=false, Instruction *InsertBefore=0)

	LoadInst (Value Ptr, const char NameStr, bool isVolatile, BasicBlock *InsertAtEnd)

bool	isVolatile () const

void	setVolatile (bool V)

unsigned	getAlignment () const

void	setAlignment (unsigned Align)

AtomicOrdering	getOrdering () const
	Returns the ordering effect of this fence. More...

void	setOrdering (AtomicOrdering Ordering)

SynchronizationScope	getSynchScope () const

void	setSynchScope (SynchronizationScope xthread)

bool	isAtomic () const

void	setAtomic (AtomicOrdering Ordering, SynchronizationScope SynchScope=CrossThread)

bool	isSimple () const

bool	isUnordered () const

Value *	getPointerOperand ()

const Value *	getPointerOperand () const

unsigned	getPointerAddressSpace () const
	Returns the address space of the pointer operand. More...

Public Member Functions inherited from llvm::UnaryInstruction
void *	operator new (size_t s)

	~UnaryInstruction ()

	DECLARE_TRANSPARENT_OPERAND_ACCESSORS (Value)
	Transparently provide more efficient getOperand methods. More...

Public Member Functions inherited from llvm::Instruction
	~Instruction ()

Instruction *	use_back ()

const Instruction *	use_back () const

const BasicBlock *	getParent () const

BasicBlock *	getParent ()

void	removeFromParent ()

void	eraseFromParent ()

void	insertBefore (Instruction *InsertPos)

void	insertAfter (Instruction *InsertPos)

void	moveBefore (Instruction *MovePos)

unsigned	getOpcode () const
	getOpcode() returns a member of one of the enums like Instruction::Add. More...

const char *	getOpcodeName () const

bool	isTerminator () const

bool	isBinaryOp () const

bool	isShift ()

bool	isCast () const

bool	isLogicalShift () const

bool	isArithmeticShift () const
	isArithmeticShift - Return true if this is an arithmetic shift right. More...

bool	hasMetadata () const

bool	hasMetadataOtherThanDebugLoc () const

MDNode *	getMetadata (unsigned KindID) const

MDNode *	getMetadata (StringRef Kind) const

void	getAllMetadata (SmallVectorImpl< std::pair< unsigned, MDNode * > > &MDs) const

void	getAllMetadataOtherThanDebugLoc (SmallVectorImpl< std::pair< unsigned, MDNode * > > &MDs) const

void	setMetadata (unsigned KindID, MDNode *Node)

void	setMetadata (StringRef Kind, MDNode *Node)

void	setDebugLoc (const DebugLoc &Loc)
	setDebugLoc - Set the debug location information for this instruction. More...

const DebugLoc &	getDebugLoc () const
	getDebugLoc - Return the debug location for this node as a DebugLoc. More...

void	setHasUnsafeAlgebra (bool B)

void	setHasNoNaNs (bool B)

void	setHasNoInfs (bool B)

void	setHasNoSignedZeros (bool B)

void	setHasAllowReciprocal (bool B)

void	setFastMathFlags (FastMathFlags FMF)

bool	hasUnsafeAlgebra () const
	Determine whether the unsafe-algebra flag is set. More...

bool	hasNoNaNs () const
	Determine whether the no-NaNs flag is set. More...

bool	hasNoInfs () const
	Determine whether the no-infs flag is set. More...

bool	hasNoSignedZeros () const
	Determine whether the no-signed-zeros flag is set. More...

bool	hasAllowReciprocal () const
	Determine whether the allow-reciprocal flag is set. More...

FastMathFlags	getFastMathFlags () const

void	copyFastMathFlags (const Instruction *I)
	Copy I's fast-math flags. More...

bool	isAssociative () const

bool	isCommutative () const

bool	isIdempotent () const

bool	isNilpotent () const

bool	mayWriteToMemory () const

bool	mayReadFromMemory () const

bool	mayReadOrWriteMemory () const

bool	mayThrow () const

bool	mayReturn () const

bool	mayHaveSideEffects () const

Instruction *	clone () const

bool	isIdenticalTo (const Instruction *I) const

bool	isIdenticalToWhenDefined (const Instruction *I) const

bool	isSameOperationAs (const Instruction *I, unsigned flags=0) const
	Determine if one instruction is the same operation as another. More...

bool	isUsedOutsideOfBlock (const BasicBlock *BB) const

Public Member Functions inherited from llvm::User
	~User ()

void	operator delete (void *Usr)
	operator delete - free memory allocated for User and Use objects More...

void	operator delete (void *, unsigned)
	placement delete - required by std, but never called. More...

void	operator delete (void *, unsigned, bool)
	placement delete - required by std, but never called. More...

Value *	getOperand (unsigned i) const

void	setOperand (unsigned i, Value *Val)

const Use &	getOperandUse (unsigned i) const

Use &	getOperandUse (unsigned i)

unsigned	getNumOperands () const

op_iterator	op_begin ()

const_op_iterator	op_begin () const

op_iterator	op_end ()

const_op_iterator	op_end () const

value_op_iterator	value_op_begin ()

value_op_iterator	value_op_end ()

void	dropAllReferences ()

void	replaceUsesOfWith (Value From, Value To)

Public Member Functions inherited from llvm::Value
virtual	~Value ()

void	dump () const
	dump - Support for debugging, callable in GDB: V->dump() More...

void	print (raw_ostream &O, AssemblyAnnotationWriter *AAW=0) const

Type *	getType () const

LLVMContext &	getContext () const
	All values hold a context through their type. More...

bool	hasName () const

ValueName *	getValueName () const

void	setValueName (ValueName *VN)

StringRef	getName () const

void	setName (const Twine &Name)

void	takeName (Value *V)

void	replaceAllUsesWith (Value *V)

bool	use_empty () const

use_iterator	use_begin ()

const_use_iterator	use_begin () const

use_iterator	use_end ()

const_use_iterator	use_end () const

User *	use_back ()

const User *	use_back () const

bool	hasOneUse () const

bool	hasNUses (unsigned N) const

bool	hasNUsesOrMore (unsigned N) const

bool	isUsedInBasicBlock (const BasicBlock *BB) const

unsigned	getNumUses () const

void	addUse (Use &U)

unsigned	getValueID () const

unsigned	getRawSubclassOptionalData () const

void	clearSubclassOptionalData ()

bool	hasSameSubclassOptionalData (const Value *V) const

void	intersectOptionalDataWith (const Value *V)

bool	hasValueHandle () const

Value *	stripPointerCasts ()
	Strips off any unneeded pointer casts, all-zero GEPs and aliases from the specified value, returning the original uncasted value. More...

const Value *	stripPointerCasts () const

Value *	stripPointerCastsNoFollowAliases ()
	Strips off any unneeded pointer casts and all-zero GEPs from the specified value, returning the original uncasted value. More...

const Value *	stripPointerCastsNoFollowAliases () const

Value *	stripInBoundsConstantOffsets ()
	Strips off unneeded pointer casts and all-constant GEPs from the specified value, returning the original pointer value. More...

const Value *	stripInBoundsConstantOffsets () const

Value *	stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset)
	Strips like `stripInBoundsConstantOffsets` but also accumulates the constant offset stripped. More...

const Value *	stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) const

Value *	stripInBoundsOffsets ()
	Strips off unneeded pointer casts and any in-bounds offsets from the specified value, returning the original pointer value. More...

const Value *	stripInBoundsOffsets () const

bool	isDereferenceablePointer () const

Value *	DoPHITranslation (const BasicBlock CurBB, const BasicBlock PredBB)

const Value *	DoPHITranslation (const BasicBlock CurBB, const BasicBlock PredBB) const

void	mutateType (Type *Ty)

Public Member Functions inherited from llvm::ilist_node< Instruction >
Instruction *	getPrevNode ()
	Get the previous node, or 0 for the list head. More...

const Instruction *	getPrevNode () const
	Get the previous node, or 0 for the list head. More...

Instruction *	getNextNode ()
	Get the next node, or 0 for the list tail. More...

const Instruction *	getNextNode () const
	Get the next node, or 0 for the list tail. More...

Static Public Member Functions
static unsigned	getPointerOperandIndex ()

static bool	classof (const Instruction *I)

static bool	classof (const Value *V)

Static Public Member Functions inherited from llvm::UnaryInstruction
static bool	classof (const Instruction *I)

static bool	classof (const Value *V)

Static Public Member Functions inherited from llvm::Instruction
static const char *	getOpcodeName (unsigned OpCode)

static bool	isTerminator (unsigned OpCode)

static bool	isBinaryOp (unsigned Opcode)

static bool	isShift (unsigned Opcode)
	Determine if the Opcode is one of the shift instructions. More...

static bool	isCast (unsigned OpCode)
	Determine if the OpCode is one of the CastInst instructions. More...

static bool	isAssociative (unsigned op)

static bool	isCommutative (unsigned op)

static bool	isIdempotent (unsigned op)

static bool	isNilpotent (unsigned op)

static bool	classof (const Value *V)
	Methods for support type inquiry through isa, cast, and dyn_cast: More...

Static Public Member Functions inherited from llvm::User
static bool	classof (const Value *V)

Protected Member Functions
virtual LoadInst *	clone_impl () const

Protected Member Functions inherited from llvm::UnaryInstruction
	UnaryInstruction (Type Ty, unsigned iType, Value V, Instruction *IB=0)

	UnaryInstruction (Type Ty, unsigned iType, Value V, BasicBlock *IAE)

Protected Member Functions inherited from llvm::Instruction
void	setInstructionSubclassData (unsigned short D)

unsigned	getSubclassDataFromInstruction () const

	Instruction (Type Ty, unsigned iType, Use Ops, unsigned NumOps, Instruction *InsertBefore=0)

	Instruction (Type Ty, unsigned iType, Use Ops, unsigned NumOps, BasicBlock *InsertAtEnd)

Protected Member Functions inherited from llvm::User
void *	operator new (size_t s, unsigned Us)

	User (Type ty, unsigned vty, Use OpList, unsigned NumOps)

Use *	allocHungoffUses (unsigned) const

void	dropHungoffUses ()

template<int Idx>
Use &	Op ()

template<int Idx>
const Use &	Op () const

Protected Member Functions inherited from llvm::Value
virtual void	printCustom (raw_ostream &O) const

	Value (Type *Ty, unsigned scid)

unsigned short	getSubclassDataFromValue () const

void	setValueSubclassData (unsigned short D)

Protected Member Functions inherited from llvm::ilist_node< Instruction >
	ilist_node ()

Additional Inherited Members
Public Types inherited from llvm::Instruction
enum	OperationEquivalenceFlags { CompareIgnoringAlignment = 1<<0, CompareUsingScalarTypes = 1<<1 }

enum	TermOps

enum	BinaryOps

enum	MemoryOps

enum	CastOps

enum	OtherOps

Public Types inherited from llvm::User
typedef Use *	op_iterator

typedef const Use *	const_op_iterator

Public Types inherited from llvm::Value
enum	ValueTy { ArgumentVal, BasicBlockVal, FunctionVal, GlobalAliasVal, GlobalVariableVal, UndefValueVal, BlockAddressVal, ConstantExprVal, ConstantAggregateZeroVal, ConstantDataArrayVal, ConstantDataVectorVal, ConstantIntVal, ConstantFPVal, ConstantArrayVal, ConstantStructVal, ConstantVectorVal, ConstantPointerNullVal, MDNodeVal, MDStringVal, InlineAsmVal, PseudoSourceValueVal, FixedStackPseudoSourceValueVal, InstructionVal, ConstantFirstVal = FunctionVal, ConstantLastVal = ConstantPointerNullVal }

typedef value_use_iterator< User >	use_iterator

typedef value_use_iterator < const User >	const_use_iterator

Static Public Attributes inherited from llvm::Value
static const unsigned	MaximumAlignment = 1u << 29

Static Protected Member Functions inherited from llvm::User
template<int Idx, typename U >
static Use &	OpFrom (const U *that)

Protected Attributes inherited from llvm::User
Use *	OperandList

unsigned	NumOperands

Protected Attributes inherited from llvm::Value
unsigned char	SubclassOptionalData: 7

Detailed Description

LoadInst - an instruction for reading from memory. This uses the SubclassData field in Value to store whether or not the load is volatile.

Definition at line 136 of file Instructions.h.

Constructor & Destructor Documentation

LoadInst::LoadInst	(	Value *	Ptr,
		const Twine &	NameStr,
		Instruction *	InsertBefore
	)

Definition at line 933 of file Instructions.cpp.

References llvm::NotAtomic, setAlignment(), setAtomic(), llvm::Value::setName(), and setVolatile().

Referenced by clone_impl().

LoadInst::LoadInst	(	Value *	Ptr,
		const Twine &	NameStr,
		BasicBlock *	InsertAtEnd
	)

Definition at line 943 of file Instructions.cpp.

References llvm::NotAtomic, setAlignment(), setAtomic(), llvm::Value::setName(), and setVolatile().

LoadInst::LoadInst	(	Value *	Ptr,
		const Twine &	NameStr,
		bool	isVolatile = `false`,
		Instruction *	InsertBefore = `0`
	)

Definition at line 953 of file Instructions.cpp.

References llvm::NotAtomic, setAlignment(), setAtomic(), llvm::Value::setName(), and setVolatile().

LoadInst::LoadInst	(	Value *	Ptr,
		const Twine &	NameStr,
		bool	isVolatile,
		BasicBlock *	InsertAtEnd
	)

Definition at line 964 of file Instructions.cpp.

References llvm::NotAtomic, setAlignment(), setAtomic(), llvm::Value::setName(), and setVolatile().

LoadInst::LoadInst	(	Value *	Ptr,
		const Twine &	NameStr,
		bool	isVolatile,
		unsigned	Align,
		Instruction *	InsertBefore = `0`
	)

Definition at line 975 of file Instructions.cpp.

References llvm::NotAtomic, setAlignment(), setAtomic(), llvm::Value::setName(), and setVolatile().

LoadInst::LoadInst	(	Value *	Ptr,
		const Twine &	NameStr,
		bool	isVolatile,
		unsigned	Align,
		BasicBlock *	InsertAtEnd
	)

Definition at line 986 of file Instructions.cpp.

References llvm::NotAtomic, setAlignment(), setAtomic(), llvm::Value::setName(), and setVolatile().

LoadInst::LoadInst	(	Value *	Ptr,
		const Twine &	NameStr,
		bool	isVolatile,
		unsigned	Align,
		AtomicOrdering	Order,
		SynchronizationScope	SynchScope = `CrossThread`,
		Instruction *	InsertBefore = `0`
	)

Definition at line 997 of file Instructions.cpp.

References setAlignment(), setAtomic(), llvm::Value::setName(), and setVolatile().

LoadInst::LoadInst	(	Value *	Ptr,
		const Twine &	NameStr,
		bool	isVolatile,
		unsigned	Align,
		AtomicOrdering	Order,
		SynchronizationScope	SynchScope,
		BasicBlock *	InsertAtEnd
	)

Definition at line 1010 of file Instructions.cpp.

References setAlignment(), setAtomic(), llvm::Value::setName(), and setVolatile().

LoadInst::LoadInst	(	Value *	Ptr,
		const char *	NameStr,
		Instruction *	InsertBefore
	)

Definition at line 1023 of file Instructions.cpp.

References llvm::NotAtomic, setAlignment(), setAtomic(), llvm::Value::setName(), and setVolatile().

LoadInst::LoadInst	(	Value *	Ptr,
		const char *	NameStr,
		BasicBlock *	InsertAtEnd
	)

Definition at line 1033 of file Instructions.cpp.

References llvm::NotAtomic, setAlignment(), setAtomic(), llvm::Value::setName(), and setVolatile().

LoadInst::LoadInst	(	Value *	Ptr,
		const char *	NameStr = `0`,
		bool	isVolatile = `false`,
		Instruction *	InsertBefore = `0`
	)

explicit

Definition at line 1043 of file Instructions.cpp.

References llvm::NotAtomic, setAlignment(), setAtomic(), llvm::Value::setName(), and setVolatile().

LoadInst::LoadInst	(	Value *	Ptr,
		const char *	NameStr,
		bool	isVolatile,
		BasicBlock *	InsertAtEnd
	)

Definition at line 1054 of file Instructions.cpp.

References llvm::NotAtomic, setAlignment(), setAtomic(), llvm::Value::setName(), and setVolatile().

Member Function Documentation

static bool llvm::LoadInst::classof ( const Instruction * I )

inlinestatic

Definition at line 234 of file Instructions.h.

References llvm::Instruction::getOpcode(), and llvm::SPII::Load.

Referenced by classof().

static bool llvm::LoadInst::classof ( const Value * V )

inlinestatic

Definition at line 237 of file Instructions.h.

References classof().

LoadInst * LoadInst::clone_impl ( ) const

protectedvirtual

Implements llvm::Instruction.

Definition at line 3541 of file Instructions.cpp.

References getAlignment(), llvm::User::getOperand(), getOrdering(), getSynchScope(), isVolatile(), and LoadInst().

unsigned llvm::LoadInst::getAlignment ( ) const

inline

getAlignment - Return the alignment of the access that is being performed

Definition at line 181 of file Instructions.h.

References llvm::Instruction::getSubclassDataFromInstruction().

Referenced by clone_impl(), llvm::MemoryDependenceAnalysis::getLoadLoadClobberFullWidthSize(), GetLoadValueForLoad(), InstCombineLoadCast(), isSafePHIToSpeculate(), isSafeSelectToSpeculate(), setAlignment(), speculatePHINodeLoads(), speculateSelectInstLoads(), tryToMakeAllocaBePromotable(), and llvm::InstCombiner::visitLoadInst().

AtomicOrdering llvm::LoadInst::getOrdering ( ) const

inline

Returns the ordering effect of this fence.

Definition at line 188 of file Instructions.h.

References llvm::Instruction::getSubclassDataFromInstruction().

Referenced by llvm::AliasSetTracker::add(), clone_impl(), InstCombineLoadCast(), isAtomic(), isUnordered(), OptimizeGlobalAddressOfMalloc(), and TryToShrinkGlobalToBoolean().

unsigned llvm::LoadInst::getPointerAddressSpace ( ) const

inline

Returns the address space of the pointer operand.

Definition at line 228 of file Instructions.h.

References llvm::Type::getPointerAddressSpace(), getPointerOperand(), and llvm::Value::getType().

Referenced by llvm::InstCombiner::visitLoadInst().

Value* llvm::LoadInst::getPointerOperand ( )

inline

Definition at line 223 of file Instructions.h.

References llvm::User::getOperand().

Referenced by AnalyzeLoadFromClobberingLoad(), llvm::MemoryDependenceAnalysis::getLoadLoadClobberFullWidthSize(), GetLoadValueForLoad(), llvm::AliasAnalysis::getLocation(), getPointerAddressSpace(), llvm::isSafeToSpeculativelyExecute(), and llvm::Interpreter::visitLoadInst().

const Value* llvm::LoadInst::getPointerOperand ( ) const

inline

Definition at line 224 of file Instructions.h.

References llvm::User::getOperand().

static unsigned llvm::LoadInst::getPointerOperandIndex ( )

inlinestatic

Definition at line 225 of file Instructions.h.

SynchronizationScope llvm::LoadInst::getSynchScope ( ) const

inline

Definition at line 199 of file Instructions.h.

References llvm::Instruction::getSubclassDataFromInstruction().

Referenced by clone_impl(), InstCombineLoadCast(), OptimizeGlobalAddressOfMalloc(), and TryToShrinkGlobalToBoolean().

bool llvm::LoadInst::isAtomic ( ) const

inline

Definition at line 211 of file Instructions.h.

References getOrdering(), and llvm::NotAtomic.

Referenced by isSimple().

bool llvm::LoadInst::isSimple ( ) const

inline

Definition at line 218 of file Instructions.h.

References isAtomic(), and isVolatile().

Referenced by llvm::MemoryDependenceAnalysis::getLoadLoadClobberFullWidthSize(), GetLoadValueForLoad(), isSafePHIToSpeculate(), isSafeSelectToSpeculate(), speculateSelectInstLoads(), and llvm::InstCombiner::visitLoadInst().

bool llvm::LoadInst::isUnordered ( ) const

inline

Definition at line 219 of file Instructions.h.

References getOrdering(), isVolatile(), and llvm::Unordered.

Referenced by llvm::AliasAnalysis::getModRefInfo(), llvm::isSafeToSpeculativelyExecute(), and OptimizeGlobalAddressOfMalloc().

bool llvm::LoadInst::isVolatile ( ) const

inline

isVolatile - Return true if this is a load from a volatile memory location.

Definition at line 170 of file Instructions.h.

References llvm::Instruction::getSubclassDataFromInstruction().

Referenced by llvm::AliasSetTracker::add(), clone_impl(), ConstantFoldLoadInst(), EvaluateExpression(), InstCombineLoadCast(), isIntegerWideningViableForSlice(), isSimple(), isUnordered(), isVectorPromotionViableForSlice(), llvm::NVPTXLowerAggrCopies::runOnFunction(), llvm::FastISel::tryToFoldLoad(), and llvm::Interpreter::visitLoadInst().

void LoadInst::setAlignment ( unsigned Align )

Definition at line 1065 of file Instructions.cpp.

References getAlignment(), llvm::Instruction::getSubclassDataFromInstruction(), and llvm::Log2_32().

Referenced by llvm::IRBuilder< true, TargetFolder >::CreateAlignedLoad(), GetLoadValueForLoad(), InstCombineLoadCast(), LoadInst(), speculatePHINodeLoads(), speculateSelectInstLoads(), tryToMakeAllocaBePromotable(), and llvm::InstCombiner::visitLoadInst().

void llvm::LoadInst::setAtomic	(	AtomicOrdering	Ordering,
		SynchronizationScope	SynchScope = `CrossThread`
	)

inline

Definition at line 212 of file Instructions.h.

References setOrdering(), and setSynchScope().

Referenced by InstCombineLoadCast(), LoadInst(), and LowerLoadInst().

void llvm::LoadInst::setOrdering ( AtomicOrdering Ordering )

inline

Set the ordering constraint on this load. May not be Release or AcquireRelease.

Definition at line 194 of file Instructions.h.

References llvm::Instruction::getSubclassDataFromInstruction().

Referenced by setAtomic().

void llvm::LoadInst::setSynchScope ( SynchronizationScope xthread )

inline

Specify whether this load is ordered with respect to all concurrently executing threads, or only with respect to signal handlers executing in the same thread.

Definition at line 206 of file Instructions.h.

References llvm::Instruction::getSubclassDataFromInstruction().

Referenced by setAtomic().

void llvm::LoadInst::setVolatile ( bool V )

inline

setVolatile - Specify whether this is a volatile load or not.

Definition at line 174 of file Instructions.h.

References llvm::Instruction::getSubclassDataFromInstruction().

Referenced by LoadInst().

The documentation for this class was generated from the following files:

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation