#include "llvm/Transforms/IPO/Attributor.h"

Inheritance diagram for llvm::ValueSimplifyStateType:

Public Member Functions
	ValueSimplifyStateType (Type *Ty)
bool	isValidState () const override
	Return if this abstract state is in a valid state.
bool	isAtFixpoint () const override
	Return if this abstract state is fixed, thus does not need to be updated if information changes as it cannot change itself.
ValueSimplifyStateType	getAssumed ()
	Return the assumed state encoding.
const ValueSimplifyStateType &	getAssumed () const
ChangeStatus	indicatePessimisticFixpoint () override
	Indicate that the abstract state should converge to the pessimistic state.
ChangeStatus	indicateOptimisticFixpoint () override
	Indicate that the abstract state should converge to the optimistic state.
ValueSimplifyStateType	operator^= (const ValueSimplifyStateType &VS)
	"Clamp" this state with `PVS`.
bool	operator== (const ValueSimplifyStateType &RHS) const
Public Member Functions inherited from llvm::AbstractState
virtual	~AbstractState ()=default

Static Public Member Functions
static ValueSimplifyStateType	getBestState (Type *Ty)
static ValueSimplifyStateType	getBestState (const ValueSimplifyStateType &VS)
static ValueSimplifyStateType	getWorstState (Type *Ty)
	Return the worst possible representable state.
static ValueSimplifyStateType	getWorstState (const ValueSimplifyStateType &VS)

Protected Member Functions
LLVM_ABI bool	unionAssumed (std::optional< Value * > Other)
	Merge `Other` into the currently assumed simplified value.

Protected Attributes
Type *	Ty
	The type of the original value.
BooleanState	BS
	Helper to track validity and fixpoint.
std::optional< Value * >	SimplifiedAssociatedValue
	An assumed simplified value.

Detailed Description

Definition at line 4332 of file Attributor.h.

Constructor & Destructor Documentation

◆ ValueSimplifyStateType()

llvm::ValueSimplifyStateType::ValueSimplifyStateType ( Type * Ty )

inline

Definition at line 4334 of file Attributor.h.

References Ty.

Referenced by getAssumed(), getAssumed(), getBestState(), getBestState(), getWorstState(), getWorstState(), operator==(), and operator^=().

Member Function Documentation

◆ getAssumed() [1/2]

ValueSimplifyStateType llvm::ValueSimplifyStateType::getAssumed ( )

inline

Return the assumed state encoding.

Definition at line 4359 of file Attributor.h.

References ValueSimplifyStateType().

◆ getAssumed() [2/2]

const ValueSimplifyStateType & llvm::ValueSimplifyStateType::getAssumed ( ) const

inline

Definition at line 4360 of file Attributor.h.

References ValueSimplifyStateType().

◆ getBestState() [1/2]

ValueSimplifyStateType llvm::ValueSimplifyStateType::getBestState ( const ValueSimplifyStateType & VS )

inlinestatic

Definition at line 4339 of file Attributor.h.

References getBestState(), and ValueSimplifyStateType().

◆ getBestState() [2/2]

ValueSimplifyStateType llvm::ValueSimplifyStateType::getBestState ( Type * Ty )

inlinestatic

Definition at line 4336 of file Attributor.h.

References Ty, and ValueSimplifyStateType().

Referenced by getBestState().

◆ getWorstState() [1/2]

ValueSimplifyStateType llvm::ValueSimplifyStateType::getWorstState ( const ValueSimplifyStateType & VS )

inlinestatic

Definition at line 4350 of file Attributor.h.

References getWorstState(), and ValueSimplifyStateType().

◆ getWorstState() [2/2]

ValueSimplifyStateType llvm::ValueSimplifyStateType::getWorstState ( Type * Ty )

inlinestatic

Return the worst possible representable state.

Definition at line 4344 of file Attributor.h.

References Ty, and ValueSimplifyStateType().

Referenced by getWorstState().

◆ indicateOptimisticFixpoint()

ChangeStatus llvm::ValueSimplifyStateType::indicateOptimisticFixpoint ( )

inlineoverridevirtual

Indicate that the abstract state should converge to the optimistic state.

This will usually make the optimistically assumed state the known to be true state.

Returns: ChangeStatus::UNCHANGED as the assumed value should not change.

Implements llvm::AbstractState.

Definition at line 4366 of file Attributor.h.

References BS.

◆ indicatePessimisticFixpoint()

ChangeStatus llvm::ValueSimplifyStateType::indicatePessimisticFixpoint ( )

inlineoverridevirtual

Indicate that the abstract state should converge to the pessimistic state.

This will usually revert the optimistically assumed state to the known to be true state.

Returns: ChangeStatus::CHANGED as the assumed value may change.

Implements llvm::AbstractState.

Definition at line 4362 of file Attributor.h.

References BS.

◆ isAtFixpoint()

bool llvm::ValueSimplifyStateType::isAtFixpoint ( ) const

inlineoverridevirtual

Return if this abstract state is fixed, thus does not need to be updated if information changes as it cannot change itself.

Implements llvm::AbstractState.

Definition at line 4356 of file Attributor.h.

References BS.

◆ isValidState()

bool llvm::ValueSimplifyStateType::isValidState ( ) const

inlineoverridevirtual

Return if this abstract state is in a valid state.

If false, no information provided should be used.

Implements llvm::AbstractState.

Definition at line 4354 of file Attributor.h.

References BS.

Referenced by operator==().

◆ operator==()

bool llvm::ValueSimplifyStateType::operator== ( const ValueSimplifyStateType & RHS ) const

inline

Definition at line 4377 of file Attributor.h.

References isValidState(), RHS, SimplifiedAssociatedValue, and ValueSimplifyStateType().

◆ operator^=()

ValueSimplifyStateType llvm::ValueSimplifyStateType::operator^= ( const ValueSimplifyStateType & VS )

inline

"Clamp" this state with PVS.

Definition at line 4371 of file Attributor.h.

References BS, unionAssumed(), and ValueSimplifyStateType().

◆ unionAssumed()

bool ValueSimplifyStateType::unionAssumed ( std::optional< Value * > Other )

protected

Merge Other into the currently assumed simplified value.

---------------— Value Simplify Attribute -------------------------—

Definition at line 6126 of file AttributorAttributes.cpp.

References llvm::AA::combineOptionalValuesInAAValueLatice(), llvm::dbgs(), LLVM_DEBUG, llvm::Other, SimplifiedAssociatedValue, and Ty.

Referenced by operator^=().

Member Data Documentation

◆ BS

BooleanState llvm::ValueSimplifyStateType::BS

protected

Helper to track validity and fixpoint.

Definition at line 4393 of file Attributor.h.

Referenced by indicateOptimisticFixpoint(), indicatePessimisticFixpoint(), isAtFixpoint(), isValidState(), and operator^=().

◆ SimplifiedAssociatedValue

std::optional<Value *> llvm::ValueSimplifyStateType::SimplifiedAssociatedValue

protected

An assumed simplified value.

Initially, it is set to std::nullopt, which means that the value is not clear under current assumption. If in the pessimistic state, getAssumedSimplifiedValue doesn't return this value but returns orignal associated value.

Definition at line 4399 of file Attributor.h.

Referenced by operator==(), and unionAssumed().

◆ Ty

Type* llvm::ValueSimplifyStateType::Ty

protected

The type of the original value.

Definition at line 4387 of file Attributor.h.

Referenced by getBestState(), getWorstState(), unionAssumed(), and ValueSimplifyStateType().

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

include/llvm/Transforms/IPO/Attributor.h
lib/Transforms/IPO/AttributorAttributes.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ValueSimplifyStateType()

Member Function Documentation

◆ getAssumed() [1/2]

◆ getAssumed() [2/2]

◆ getBestState() [1/2]

◆ getBestState() [2/2]

◆ getWorstState() [1/2]

◆ getWorstState() [2/2]

◆ indicateOptimisticFixpoint()

◆ indicatePessimisticFixpoint()

◆ isAtFixpoint()

◆ isValidState()

◆ operator==()

◆ operator^=()

◆ unionAssumed()

Member Data Documentation

◆ BS

◆ SimplifiedAssociatedValue

◆ Ty