#include <Instruction.h>

Inheritance diagram for llvm::Instruction:

Collaboration diagram for llvm::Instruction:

Public Types
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

Public Member Functions
	~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 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
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)

virtual Instruction *	clone_impl () const =0

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 ()

Friends
class	SymbolTableListTraits< Instruction, BasicBlock >

Additional Inherited Members
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

Definition at line 31 of file Instruction.h.

Member Enumeration Documentation

enum llvm::Instruction::BinaryOps

Definition at line 387 of file Instruction.h.

enum llvm::Instruction::CastOps

Definition at line 401 of file Instruction.h.

enum llvm::Instruction::MemoryOps

Definition at line 394 of file Instruction.h.

enum llvm::Instruction::OperationEquivalenceFlags

When checking for operation equivalence (using isSameOperationAs) it is sometimes useful to ignore certain attributes.

Enumerator
CompareIgnoringAlignment	Check for equivalence ignoring load/store alignment.
CompareUsingScalarTypes	Check for equivalence treating a type and a vector of that type as equivalent.

Definition at line 347 of file Instruction.h.

enum llvm::Instruction::OtherOps

Definition at line 408 of file Instruction.h.

enum llvm::Instruction::TermOps

Definition at line 380 of file Instruction.h.

Constructor & Destructor Documentation

Instruction::~Instruction ( )

Definition at line 51 of file Instruction.cpp.

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

protected

Definition at line 24 of file Instruction.cpp.

References llvm::LeakDetector::addGarbageObject(), llvm::BasicBlock::getInstList(), getParent(), and llvm::iplist< NodeTy, Traits >::insert().

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

protected

Definition at line 38 of file Instruction.cpp.

References llvm::LeakDetector::addGarbageObject(), llvm::BasicBlock::getInstList(), and llvm::iplist< NodeTy, Traits >::push_back().

Member Function Documentation

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

inlinestatic

Methods for support type inquiry through isa, cast, and dyn_cast:

Definition at line 373 of file Instruction.h.

References llvm::Value::getValueID(), and llvm::Value::InstructionVal.

Instruction * Instruction::clone ( ) const

clone() - Create a copy of 'this' instruction that is identical in all ways except the following:

The instruction has no parent
The instruction has no name

Definition at line 541 of file Instruction.cpp.

References clone_impl(), getAllMetadataOtherThanDebugLoc(), getDebugLoc(), hasMetadata(), setDebugLoc(), setMetadata(), llvm::SmallVectorTemplateCommon< T >::size(), and llvm::Value::SubclassOptionalData.

Referenced by llvm::CloneBasicBlock(), llvm::FoldBranchToCommonDest(), llvm::FoldReturnIntoUncondBranch(), HoistThenElseCodeToIf(), and llvm::SplitLandingPadPredecessors().

virtual Instruction* llvm::Instruction::clone_impl ( ) const

protectedpure virtual

Implemented in llvm::AddrSpaceCastInst, llvm::BitCastInst, llvm::PtrToIntInst, llvm::IntToPtrInst, llvm::FPToSIInst, llvm::FPToUIInst, llvm::SIToFPInst, llvm::UIToFPInst, llvm::FPExtInst, llvm::FPTruncInst, llvm::SExtInst, llvm::ZExtInst, llvm::TruncInst, llvm::UnreachableInst, llvm::ResumeInst, llvm::InvokeInst, llvm::IndirectBrInst, llvm::SwitchInst, llvm::BranchInst, llvm::ReturnInst, llvm::LandingPadInst, llvm::PHINode, llvm::InsertValueInst, llvm::ExtractValueInst, llvm::ShuffleVectorInst, llvm::InsertElementInst, llvm::ExtractElementInst, llvm::VAArgInst, llvm::SelectInst, llvm::CallInst, llvm::FCmpInst, llvm::ICmpInst, llvm::GetElementPtrInst, llvm::AtomicRMWInst, llvm::AtomicCmpXchgInst, llvm::FenceInst, llvm::StoreInst, llvm::BinaryOperator, llvm::LoadInst, llvm::AllocaInst, and llvm::TerminatorInst.

Referenced by clone().

void Instruction::copyFastMathFlags ( const Instruction * I )

Copy I's fast-math flags.

Definition at line 181 of file Instruction.cpp.

References getFastMathFlags(), and setFastMathFlags().

Referenced by llvm::InstCombiner::visitFMul(), and llvm::InstCombiner::visitFSub().

void Instruction::eraseFromParent ( )

eraseFromParent - This method unlinks 'this' from the containing basic block and deletes it.

Definition at line 72 of file Instruction.cpp.

References llvm::iplist< NodeTy, Traits >::erase(), llvm::BasicBlock::getInstList(), and getParent().

Referenced by AddReachableCodeToWorklist(), BuildSubAggregate(), changeToCall(), checkCSEInPredecessor(), CleanupPointerRootUsers(), llvm::CloneAndPruneFunctionInto(), CloneLoopBlocks(), ConnectProlog(), llvm::ConstantFoldTerminator(), cse(), DeleteDeadInstruction(), deleteDeadInstruction(), DeleteTriviallyDeadInstructions(), llvm::DemotePHIToStack(), llvm::DemoteRegToStack(), llvm::InstCombiner::DoOneIteration(), llvm::EliminateDuplicatePHINodes(), llvm::InstCombiner::EraseInstFromFunction(), llvm::objcarc::EraseInstruction(), EraseTerminatorInstAndDCECond(), llvm::expandDivision(), llvm::expandDivisionUpTo32Bits(), llvm::expandRemainder(), llvm::expandRemainderUpTo32Bits(), FindPHIToPartitionLoops(), llvm::FoldReturnIntoUncondBranch(), FoldTwoEntryPHINode(), generateUnsignedDivisionCode(), getAdjustedPtr(), llvm::SSAUpdater::GetValueInMiddleOfBlock(), INITIALIZE_PASS(), InlineCallIfPossible(), llvm::InlineFunction(), insertFastDiv(), LowerAtomicCmpXchgInst(), LowerAtomicRMWInst(), llvm::LowerDbgDeclare(), LowerFenceInst(), llvm::IntrinsicLowering::LowerIntrinsicCall(), llvm::IntrinsicLowering::LowerToByteSwap(), markAliveBlocks(), llvm::BitcodeReader::MaterializeModule(), llvm::MergeBasicBlockIntoOnlyPred(), mergeEmptyReturnBlocks(), OptimizeCmpExpression(), OptimizeGlobalAddressOfMalloc(), OptimizeNoopCopyExpression(), PerformHeapAllocSRoA(), llvm::PHITransAddr::PHITranslateWithInsertion(), promoteSingleBlockAlloca(), llvm::RecursivelyDeleteTriviallyDeadInstructions(), llvm::PHINode::removeIncomingValue(), removeLifetimeIntrinsicUsers(), llvm::BasicBlock::removePredecessor(), removeUndefIntroducingPredecessor(), llvm::LibCallSimplifier::replaceAllUsesWith(), replaceAndRecursivelySimplifyImpl(), llvm::replaceDbgDeclareForAlloca(), ReplaceUsesOfMallocWithGlobal(), ReplaceUsesOfWith(), reuseOrInsertFastDiv(), rewriteSingleStoreAlloca(), RewriteUsesOfLoadForHeapSRoA(), llvm::LoadAndStorePromoter::run(), llvm::NVPTXLowerAggrCopies::runOnFunction(), llvm::Inliner::runOnSCC(), SimplifyBranchOnICmpChain(), SinkThenElseCodeToEnd(), speculatePHINodeLoads(), speculateSelectInstLoads(), llvm::SplitLandingPadPredecessors(), StripDebugInfo(), SwitchToLookupTable(), tryToMakeAllocaBePromotable(), TryToOptimizeStoreOfMallocToGlobal(), TryToShrinkGlobalToBoolean(), llvm::TryToSimplifyUncondBranchFromEmptyBlock(), TryToSimplifyUncondBranchWithICmpInIt(), TurnSwitchRangeIntoICmp(), llvm::UnrollLoop(), llvm::UpgradeIntrinsicCall(), and llvm::ObjectSizeOffsetEvaluator::visitPHINode().

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

inline

getAllMetadata - Get all metadata attached to this Instruction. The first element of each pair returned is the KindID, the second element is the metadata value. This list is returned sorted by the KindID.

Definition at line 155 of file Instruction.h.

References hasMetadata().

Referenced by llvm::AssemblyWriter::printInstruction(), and llvm::RemapInstruction().

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

inline

getAllMetadataOtherThanDebugLoc - This does the same thing as getAllMetadata, except that it filters out the debug location.

Definition at line 162 of file Instruction.h.

References hasMetadataOtherThanDebugLoc().

Referenced by clone(), and llvm::TypeFinder::run().

const DebugLoc& llvm::Instruction::getDebugLoc ( ) const

inline

getDebugLoc - Return the debug location for this node as a DebugLoc.

Definition at line 178 of file Instruction.h.

Referenced by BreakUpSubtract(), changeToCall(), changeToUnreachable(), clone(), llvm::ConvertDebugDeclareToDebugValue(), ConvertShiftToMul(), createAndInstr(), llvm::InstCombiner::DoOneIteration(), fixupLineNumbers(), llvm::SelectionDAGBuilder::getCurDebugLoc(), llvm::SDLoc::getDebugLoc(), GetLoadValueForLoad(), llvm::InlineFunction(), llvm::InstCombiner::InsertNewInstWith(), llvm::InsertPreheaderForLoop(), llvm::IRBuilder< true, TargetFolder >::IRBuilder(), LowerNegateToMultiply(), llvm::SCEVExpander::replaceCongruentIVs(), llvm::FastISel::SelectInstruction(), llvm::FastISel::SelectOperator(), llvm::FunctionLoweringInfo::set(), llvm::IRBuilderBase::SetInsertPoint(), SimplifyTerminatorOnSelect(), llvm::SplitCriticalEdge(), TryToSimplifyUncondBranchWithICmpInIt(), llvm::InstCombiner::visitFDiv(), and llvm::InstCombiner::visitXor().

FastMathFlags Instruction::getFastMathFlags ( ) const

Convenience function for getting all the fast-math flags, which must be an operator which supports these flags. See LangRef.html for the meaning of these flats.

Definition at line 175 of file Instruction.cpp.

Referenced by ClearSubclassDataAfterReassociation(), copyFastMathFlags(), llvm::SimplifyInstruction(), llvm::InstCombiner::visitFAdd(), llvm::InstCombiner::visitFDiv(), llvm::InstCombiner::visitFMul(), and llvm::InstCombiner::visitFSub().

MDNode* llvm::Instruction::getMetadata ( unsigned KindID ) const

inline

getMetadata - Get the metadata of given kind attached to this Instruction. If the metadata is not found then return null.

Definition at line 140 of file Instruction.h.

References hasMetadata().

Referenced by llvm::AliasSetTracker::add(), llvm::LLVMContext::emitError(), ExtractBranchMetadata(), llvm::getAlign(), GetBranchWeights(), llvm::AliasAnalysis::getLocation(), llvm::AliasAnalysis::getLocationForDest(), llvm::AliasAnalysis::getLocationForSource(), llvm::Loop::getLoopID(), llvm::AliasAnalysis::getModRefInfo(), llvm::MemoryDependenceAnalysis::getPointerDependencyFrom(), HasBranchWeights(), isVtableAccess(), patchReplacementInstruction(), llvm::AliasSetTracker::remove(), speculatePHINodeLoads(), speculateSelectInstLoads(), llvm::BranchInst::swapSuccessors(), tryToMakeAllocaBePromotable(), and llvm::UpgradeInstWithTBAATag().

MDNode* llvm::Instruction::getMetadata ( StringRef Kind ) const

inline

getMetadata - Get the metadata of given kind attached to this Instruction. If the metadata is not found then return null.

Definition at line 147 of file Instruction.h.

References hasMetadata().

unsigned llvm::Instruction::getOpcode ( ) const

inline

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

Definition at line 83 of file Instruction.h.

References llvm::Value::getValueID(), and llvm::Value::InstructionVal.

const char* llvm::Instruction::getOpcodeName ( ) const

inline

Definition at line 85 of file Instruction.h.

References getOpcode(), and getOpcodeName().

Referenced by getOpcodeName(), llvm::ConstantExpr::getOpcodeName(), llvm::AssemblyWriter::printInstruction(), and PrintOps().

const char * Instruction::getOpcodeName ( unsigned OpCode )

static

Definition at line 186 of file Instruction.cpp.

References llvm::APIntOps::And(), llvm::Call, ExtractElement(), llvm::SPII::Load, llvm::APIntOps::Or(), llvm::TargetOpcode::PHI, llvm::AArch64ISD::Ret, llvm::MCID::Select, llvm::SPII::Store, and llvm::APIntOps::Xor().

const BasicBlock* llvm::Instruction::getParent ( ) const

inline

Definition at line 52 of file Instruction.h.

BasicBlock* llvm::Instruction::getParent ( )

inline

Definition at line 53 of file Instruction.h.

unsigned llvm::Instruction::getSubclassDataFromInstruction ( ) const

inlineprotected

Definition at line 441 of file Instruction.h.

bool Instruction::hasAllowReciprocal ( ) const

Determine whether the allow-reciprocal flag is set.

Definition at line 167 of file Instruction.cpp.

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

bool llvm::Instruction::hasMetadata ( ) const

inline

hasMetadata() - Return true if this instruction has any metadata attached to it.

Definition at line 128 of file Instruction.h.

References llvm::DebugLoc::isUnknown().

Referenced by clone(), getAllMetadata(), getMetadata(), and setMetadata().

bool llvm::Instruction::hasMetadataOtherThanDebugLoc ( ) const

inline

hasMetadataOtherThanDebugLoc - Return true if this instruction has metadata attached to it other than a debug location.

Definition at line 134 of file Instruction.h.

Referenced by getAllMetadataOtherThanDebugLoc().

bool Instruction::hasNoInfs ( ) const

Determine whether the no-infs flag is set.

Definition at line 155 of file Instruction.cpp.

Referenced by SimplifyFAddInst(), and llvm::InstCombiner::visitFMul().

bool Instruction::hasNoNaNs ( ) const

Determine whether the no-NaNs flag is set.

Definition at line 149 of file Instruction.cpp.

Referenced by SimplifyFAddInst(), and llvm::InstCombiner::visitFMul().

bool Instruction::hasNoSignedZeros ( ) const

Determine whether the no-signed-zeros flag is set.

Definition at line 161 of file Instruction.cpp.

Referenced by llvm::BinaryOperator::isFNeg(), llvm::InstCombiner::visitFAdd(), and llvm::InstCombiner::visitFMul().

bool Instruction::hasUnsafeAlgebra ( ) const

Determine whether the unsafe-algebra flag is set.

Definition at line 143 of file Instruction.cpp.

Referenced by detectLog2OfHalf(), isAssociative(), llvm::InstCombiner::visitFAdd(), llvm::InstCombiner::visitFDiv(), llvm::InstCombiner::visitFMul(), and llvm::InstCombiner::visitFSub().

void Instruction::insertAfter ( Instruction * InsertPos )

insertAfter - Insert an unlinked instructions into a basic block immediately after the specified instruction.

Definition at line 84 of file Instruction.cpp.

References llvm::BasicBlock::getInstList(), getParent(), and llvm::iplist< NodeTy, Traits >::insertAfter().

void Instruction::insertBefore ( Instruction * InsertPos )

insertBefore - Insert an unlinked instructions into a basic block immediately before the specified instruction.

Definition at line 78 of file Instruction.cpp.

References llvm::BasicBlock::getInstList(), getParent(), and llvm::iplist< NodeTy, Traits >::insert().

Referenced by llvm::FoldBranchToCommonDest(), INITIALIZE_PASS(), llvm::UnrollRuntimeLoopProlog(), and llvm::InstCombiner::visitUDiv().

bool llvm::Instruction::isArithmeticShift ( ) const

inline

isArithmeticShift - Return true if this is an arithmetic shift right.

Definition at line 113 of file Instruction.h.

References getOpcode().

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

bool Instruction::isAssociative ( ) const

isAssociative - Return true if the instruction is associative:

Associative operators satisfy: x op (y op z) === (x op y) op z

In LLVM, the Add, Mul, And, Or, and Xor operators are associative.

Definition at line 482 of file Instruction.cpp.

References getOpcode(), and hasUnsafeAlgebra().

Referenced by llvm::ConstantFoldBinaryInstruction(), LinearizeExprTree(), SimplifyAssociativeBinOp(), and SimplifyBinOp().

bool Instruction::isAssociative ( unsigned Opcode )

static

isAssociative - Return true if the instruction is associative:

Associative operators satisfy: x op (y op z) === (x op y) op z

In LLVM, the Add, Mul, And, Or, and Xor operators are associative.

Definition at line 477 of file Instruction.cpp.

References llvm::APIntOps::And(), llvm::APIntOps::Or(), and llvm::APIntOps::Xor().

bool llvm::Instruction::isBinaryOp ( ) const

inline

Definition at line 87 of file Instruction.h.

References getOpcode(), and isBinaryOp().

Referenced by llvm::BinaryOperator::classof(), llvm::ConstantFoldInstOperands(), and isBinaryOp().

static bool llvm::Instruction::isBinaryOp ( unsigned Opcode )

inlinestatic

Definition at line 97 of file Instruction.h.

bool llvm::Instruction::isCast ( ) const

inline

Definition at line 89 of file Instruction.h.

References getOpcode(), and isCast().

Referenced by llvm::CastInst::classof(), llvm::ConstantCreator< ConstantExpr, Type, ExprMapKeyType >::create(), foldConstantCastPair(), llvm::InstCombiner::FoldSelectOpOp(), llvm::ConstantExpr::getCast(), isCast(), llvm::ConstantExpr::isCast(), WriteConstants(), and WriteInstruction().

static bool llvm::Instruction::isCast ( unsigned OpCode )

inlinestatic

Determine if the OpCode is one of the CastInst instructions.

Definition at line 118 of file Instruction.h.

bool llvm::Instruction::isCommutative ( ) const

inline

isCommutative - Return true if the instruction is commutative:

Commutative operators satisfy: (x op y) === (y op x)

In LLVM, these are the associative operators, plus SetEQ and SetNE, when applied to any type.

Definition at line 269 of file Instruction.h.

References getOpcode(), and isCommutative().

Referenced by llvm::ConstantFoldBinaryInstruction(), ExpandBinOp(), FactorizeBinOp(), llvm::InstCombiner::FoldSelectOpOp(), isCommutative(), LinearizeExprTree(), RightDistributesOverLeft(), SimplifyAssociativeBinOp(), llvm::BinaryOperator::swapOperands(), and ThreadBinOpOverSelect().

bool Instruction::isCommutative ( unsigned op )

static

isCommutative - Return true if the instruction is commutative:

Commutative operators satisfy: (x op y) === (y op x)

In LLVM, these are the associative operators, plus SetEQ and SetNE, when applied to any type.

Definition at line 503 of file Instruction.cpp.

References llvm::APIntOps::And(), llvm::APIntOps::Or(), and llvm::APIntOps::Xor().

bool llvm::Instruction::isIdempotent ( ) const

inline

isIdempotent - Return true if the instruction is idempotent:

Idempotent operators satisfy: x op x === x

In LLVM, the And and Or operators are idempotent.

Definition at line 278 of file Instruction.h.

References getOpcode(), and isIdempotent().

Referenced by IncorporateWeight(), and isIdempotent().

bool Instruction::isIdempotent ( unsigned Opcode )

static

isIdempotent - Return true if the instruction is idempotent:

Idempotent operators satisfy: x op x === x

In LLVM, the And and Or operators are idempotent.

Definition at line 524 of file Instruction.cpp.

References llvm::APIntOps::And(), and llvm::APIntOps::Or().

bool Instruction::isIdenticalTo ( const Instruction * I ) const

isIdenticalTo - Return true if the specified instruction is exactly identical to the current one. This means that all operands match and any extra information (e.g. load is volatile) agree.

Definition at line 264 of file Instruction.cpp.

References isIdenticalToWhenDefined(), and llvm::Value::SubclassOptionalData.

Referenced by checkCSEInPredecessor().

bool Instruction::isIdenticalToWhenDefined ( const Instruction * I ) const

isIdenticalToWhenDefined - This is like isIdenticalTo, except that it ignores the SubclassOptionalData flags, which specify conditions under which the instruction's result is undefined.

Definition at line 272 of file Instruction.cpp.

References llvm::Intrinsic::getAttributes(), llvm::PHINode::getIncomingBlock(), llvm::User::getNumOperands(), getOpcode(), llvm::User::getOperand(), llvm::Value::getType(), I, and LI.

Referenced by HoistThenElseCodeToIf(), and isIdenticalTo().

bool llvm::Instruction::isLogicalShift ( ) const

inline

isLogicalShift - Return true if this is a logical shift left or a logical shift right.

Definition at line 108 of file Instruction.h.

References getOpcode().

Referenced by CollectBSwapParts(), llvm::InstCombiner::FoldShiftByConstant(), and llvm::InstCombiner::visitICmpInstWithInstAndIntCst().

bool llvm::Instruction::isNilpotent ( ) const

inline

isNilpotent - Return true if the instruction is nilpotent:

Nilpotent operators satisfy: x op x === Id,

where Id is the identity for the operator, i.e. a constant such that x op Id === x and Id op x === x for all x.

In LLVM, the Xor operator is nilpotent.

Definition at line 290 of file Instruction.h.

References getOpcode(), and isNilpotent().

Referenced by IncorporateWeight(), and isNilpotent().

bool Instruction::isNilpotent ( unsigned Opcode )

static

isNilpotent - Return true if the instruction is nilpotent:

Nilpotent operators satisfy: x op x === Id,

where Id is the identity for the operator, i.e. a constant such that x op Id === x and Id op x === x for all x.

In LLVM, the Xor operator is nilpotent.

Definition at line 537 of file Instruction.cpp.

References llvm::APIntOps::Xor().

bool Instruction::isSameOperationAs	(	const Instruction *	I,
		unsigned	flags = `0`
	)		const

Determine if one instruction is the same operation as another.

This function determines if the specified instruction executes the same operation as the current one. This means that the opcodes, type, operand types and any other factors affecting the operation must be the same. This is similar to isIdenticalTo except the operands themselves don't have to be identical.

Returns: true if the specified instruction is the same operation as the current one.

Definition at line 334 of file Instruction.cpp.

References CompareIgnoringAlignment, CompareUsingScalarTypes, llvm::Intrinsic::getAttributes(), llvm::User::getNumOperands(), getOpcode(), llvm::User::getOperand(), llvm::Type::getScalarType(), llvm::Value::getType(), I, and LI.

Referenced by SinkThenElseCodeToEnd().

bool llvm::Instruction::isShift ( )

inline

Definition at line 88 of file Instruction.h.

References getOpcode(), and isShift().

Referenced by llvm::InstCombiner::FoldShiftByConstant(), isShift(), llvm::InstCombiner::visitICmpInstWithInstAndIntCst(), and llvm::InstCombiner::visitXor().

static bool llvm::Instruction::isShift ( unsigned Opcode )

inlinestatic

Determine if the Opcode is one of the shift instructions.

Definition at line 102 of file Instruction.h.

bool llvm::Instruction::isTerminator ( ) const

inline

Definition at line 86 of file Instruction.h.

References getOpcode(), and isTerminator().

Referenced by llvm::TerminatorInst::classof(), isTerminator(), llvm::MemoryDependenceAnalysis::removeInstruction(), and SimplifyCondBranchToTwoReturns().

static bool llvm::Instruction::isTerminator ( unsigned OpCode )

inlinestatic

Definition at line 93 of file Instruction.h.

bool Instruction::isUsedOutsideOfBlock ( const BasicBlock * BB ) const

isUsedOutsideOfBlock - Return true if there are any uses of this instruction in blocks other than the specified block. Note that PHI nodes are considered to evaluate their operands in the corresponding predecessor block.

isUsedOutsideOfBlock - Return true if there are any uses of I outside of the specified block. Note that PHI nodes are considered to evaluate their operands in the corresponding predecessor block.

Definition at line 401 of file Instruction.cpp.

References llvm::dyn_cast(), llvm::PHINode::getIncomingBlock(), llvm::Value::use_begin(), and llvm::Value::use_end().

bool llvm::Instruction::mayHaveSideEffects ( ) const

inline

mayHaveSideEffects - Return true if the instruction may have side effects.

Note that this does not consider malloc and alloca to have side effects because the newly allocated memory is completely invisible to instructions which don't used the returned value. For cases where this matters, isSafeToSpeculativelyExecute may be more appropriate.

Definition at line 324 of file Instruction.h.

References mayReturn(), mayThrow(), and mayWriteToMemory().

Referenced by InstructionWillNotHaveChain(), llvm::isInstructionTriviallyDead(), llvm::isInTailCallPosition(), IsSafeComputationToRemove(), isSafePHIToSpeculate(), isSafeToSpeculateStore(), SinkThenElseCodeToEnd(), SpeculativelyExecuteBB(), and TryToSinkInstruction().

bool Instruction::mayReadFromMemory ( ) const

mayReadFromMemory - Return true if this instruction may read memory.

Definition at line 421 of file Instruction.cpp.

References llvm::Call, getOpcode(), llvm::SPII::Load, and llvm::SPII::Store.

Referenced by llvm::DependenceAnalysis::depends(), GetLocation(), llvm::DependenceAnalysis::getSplitIteration(), hasConcreteDefImpl(), InstructionWillNotHaveChain(), llvm::Dependence::isAnti(), llvm::Dependence::isFlow(), llvm::Dependence::isInput(), llvm::isInTailCallPosition(), llvm::Loop::makeLoopInvariant(), mayReadOrWriteMemory(), and TryToSinkInstruction().

bool llvm::Instruction::mayReadOrWriteMemory ( ) const

inline

mayReadOrWriteMemory - Return true if this instruction may read or write memory.

Definition at line 304 of file Instruction.h.

References mayReadFromMemory(), and mayWriteToMemory().

Referenced by llvm::AliasSetTracker::addUnknown(), llvm::AliasSet::aliasesUnknownInst(), llvm::AliasSetTracker::deleteValue(), llvm::AliasSetTracker::removeUnknown(), and SinkThenElseCodeToEnd().

bool Instruction::mayReturn ( ) const

mayReturn - Return true if this is a function that may return. this is true for all normal instructions. The only exception is functions that are marked with the 'noreturn' attribute.

Definition at line 465 of file Instruction.cpp.

Referenced by mayHaveSideEffects().

bool Instruction::mayThrow ( ) const

mayThrow - Return true if this instruction may throw an exception.

Definition at line 459 of file Instruction.cpp.

Referenced by mayHaveSideEffects().

bool Instruction::mayWriteToMemory ( ) const

mayWriteToMemory - Return true if this instruction may modify memory.

Definition at line 441 of file Instruction.cpp.

References llvm::Call, getOpcode(), llvm::SPII::Load, and llvm::SPII::Store.

Referenced by llvm::DependenceAnalysis::depends(), llvm::FindAvailableLoadedValue(), FindInitTrampolineFromBB(), GetLocation(), llvm::DependenceAnalysis::getSplitIteration(), llvm::Dependence::isAnti(), llvm::Dependence::isFlow(), isFoldedOrDeadInstruction(), llvm::Dependence::isOutput(), isSafeToMove(), mayHaveSideEffects(), and mayReadOrWriteMemory().

void Instruction::moveBefore ( Instruction * MovePos )

moveBefore - Unlink this instruction from its current basic block and insert it into the basic block that MovePos lives in, right before MovePos.

Definition at line 91 of file Instruction.cpp.

References llvm::BasicBlock::getInstList(), getParent(), and llvm::iplist< NodeTy, Traits >::splice().

Referenced by llvm::SCEVExpander::hoistIVInc(), llvm::Loop::makeLoopInvariant(), NegateValue(), llvm::NVPTXAllocaHoisting::runOnFunction(), tryToMoveFreeBeforeNullTest(), TryToSinkInstruction(), llvm::InstCombiner::visitAllocaInst(), and llvm::InstCombiner::visitSelectInstWithICmp().

void Instruction::removeFromParent ( )

removeFromParent - This method unlinks 'this' from the containing basic block, but does not delete it.

Definition at line 68 of file Instruction.cpp.

References llvm::BasicBlock::getInstList(), getParent(), and llvm::iplist< NodeTy, Traits >::remove().

void llvm::Instruction::setDebugLoc ( const DebugLoc & Loc )

inline

setDebugLoc - Set the debug location information for this instruction.

Definition at line 175 of file Instruction.h.

Referenced by clone(), llvm::ConvertDebugDeclareToDebugValue(), ConvertShiftToMul(), createAndInstr(), llvm::SSAUpdater::GetValueInMiddleOfBlock(), llvm::InlineFunction(), llvm::InstCombiner::InsertNewInstWith(), llvm::InsertPreheaderForLoop(), and llvm::IRBuilderBase::SetInstDebugLocation().

void Instruction::setFastMathFlags ( FastMathFlags FMF )

Convenience function for setting all the fast-math flags on this instruction, which must be an operator which supports these flags. See LangRef.html for the meaning of these flats.

Definition at line 137 of file Instruction.cpp.

Referenced by ClearSubclassDataAfterReassociation(), copyFastMathFlags(), and llvm::InstCombiner::visitFDiv().

void Instruction::setHasAllowReciprocal ( bool B )

Set or clear the allow-reciprocal flag on this instruction, which must be an operator which supports this flag. See LangRef.html for the meaning of this flag.

Definition at line 129 of file Instruction.cpp.

void Instruction::setHasNoInfs ( bool B )

Set or clear the no-infs flag on this instruction, which must be an operator which supports this flag. See LangRef.html for the meaning of this flag.

Definition at line 113 of file Instruction.cpp.

void Instruction::setHasNoNaNs ( bool B )

Set or clear the no-nans flag on this instruction, which must be an operator which supports this flag. See LangRef.html for the meaning of this flag.

Set or clear the NoNaNs flag on this instruction, which must be an operator which supports this flag. See LangRef.html for the meaning of this flag.

Definition at line 106 of file Instruction.cpp.

void Instruction::setHasNoSignedZeros ( bool B )

Set or clear the no-signed-zeros flag on this instruction, which must be an operator which supports this flag. See LangRef.html for the meaning of this flag.

Definition at line 121 of file Instruction.cpp.

void Instruction::setHasUnsafeAlgebra ( bool B )

Set or clear the unsafe-algebra flag on this instruction, which must be an operator which supports this flag. See LangRef.html for the meaning of this flag.

Definition at line 99 of file Instruction.cpp.

void llvm::Instruction::setInstructionSubclassData ( unsigned short D )

inlineprotected

Definition at line 436 of file Instruction.h.

Referenced by llvm::CmpInst::setPredicate().

void Instruction::setMetadata	(	unsigned	KindID,
		MDNode *	Node
	)

setMetadata - Set the metadata of the specified kind to the specified node. This updates/replaces metadata if already present, or removes it if Node is null.

setMetadata - Set the metadata of of the specified kind to the specified node. This updates/replaces metadata if already present, or removes it if Node is null.

Definition at line 589 of file Metadata.cpp.

References llvm::SmallVectorTemplateCommon< T, typename >::back(), llvm::SmallVectorBase::empty(), llvm::Value::getContext(), llvm::DebugLoc::getFromDILocation(), hasMetadata(), llvm::LLVMContext::MD_dbg, llvm::LLVMContextImpl::MetadataStore, llvm::LLVMContext::pImpl, llvm::SmallVectorTemplateBase< T, isPodLike >::pop_back(), llvm::SmallVectorTemplateBase< T, isPodLike >::push_back(), and llvm::SmallVectorTemplateCommon< T, typename >::size().