A class for a set state. More...
#include "llvm/Transforms/IPO/Attributor.h"
Public Types | |
| using | SetTy = DenseSet< MemberTy, KeyInfo > |
Public Member Functions | |
| PotentialValuesState () | |
| PotentialValuesState (bool IsValid) | |
| bool | isValidState () const override |
| See AbstractState::isValidState(...) More... | |
| bool | isAtFixpoint () const override |
| See AbstractState::isAtFixpoint(...) More... | |
| ChangeStatus | indicatePessimisticFixpoint () override |
| See AbstractState::indicatePessimisticFixpoint(...) More... | |
| ChangeStatus | indicateOptimisticFixpoint () override |
| See AbstractState::indicateOptimisticFixpoint(...) More... | |
| PotentialValuesState & | getAssumed () |
| Return the assumed state. More... | |
| const PotentialValuesState & | getAssumed () const |
| const SetTy & | getAssumedSet () const |
| Return this set. More... | |
| bool | undefIsContained () const |
| Returns whether this state contains an undef value or not. More... | |
| bool | operator== (const PotentialValuesState &RHS) const |
| void | unionAssumed (const MemberTy &C) |
| Union assumed set with the passed value. More... | |
| void | unionAssumed (const PotentialValuesState &PVS) |
Union assumed set with assumed set of the passed state PVS. More... | |
| void | unionAssumedWithUndef () |
| Union assumed set with an undef value. More... | |
| PotentialValuesState | operator^= (const PotentialValuesState &PVS) |
"Clamp" this state with PVS. More... | |
| PotentialValuesState | operator&= (const PotentialValuesState &PVS) |
 Public Member Functions inherited from llvm::AbstractState | |
| virtual | ~AbstractState () |
Static Public Member Functions | |
| static PotentialValuesState | getBestState () |
| Return empty set as the best state of potential values. More... | |
| static PotentialValuesState | getBestState (PotentialValuesState &PVS) |
| static PotentialValuesState | getWorstState () |
| Return full set as the worst state of potential values. More... | |
Static Public Attributes | |
| static unsigned | MaxPotentialValues = 0 |
| Maximum number of potential values to be tracked. More... | |
Detailed Description
template<typename MemberTy, typename KeyInfo = DenseMapInfo<MemberTy>>
struct llvm::PotentialValuesState< MemberTy, KeyInfo >
A class for a set state.
The assumed boolean state indicates whether the corresponding set is full set or not. If the assumed state is false, this is the worst state. The worst state (invalid state) of set of potential values is when the set contains every possible value (i.e. we cannot in any way limit the value that the target position can take). That never happens naturally, we only force it. As for the conditions under which we force it, see AAPotentialValues.
Definition at line 4127 of file Attributor.h.
Member Typedef Documentation
◆ SetTy
| using llvm::PotentialValuesState< MemberTy, KeyInfo >::SetTy = DenseSet<MemberTy, KeyInfo> |
Definition at line 4128 of file Attributor.h.
Constructor & Destructor Documentation
◆ PotentialValuesState() [1/2]
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inline |
Definition at line 4130 of file Attributor.h.
Referenced by llvm::PotentialValuesState< MemberTy, KeyInfo >::getBestState(), and llvm::PotentialValuesState< MemberTy, KeyInfo >::getWorstState().
◆ PotentialValuesState() [2/2]
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inline |
Definition at line 4132 of file Attributor.h.
Member Function Documentation
◆ getAssumed() [1/2]
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inline |
Return the assumed state.
Definition at line 4152 of file Attributor.h.
◆ getAssumed() [2/2]
|
inline |
Definition at line 4153 of file Attributor.h.
◆ getAssumedSet()
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inline |
Return this set.
We should check whether this set is valid or not by isValidState() before calling this function.
Definition at line 4157 of file Attributor.h.
References assert(), and llvm::PotentialValuesState< MemberTy, KeyInfo >::isValidState().
Referenced by llvm::AAPotentialValues::getAssumedConstantInt(), and llvm::PotentialValuesState< MemberTy, KeyInfo >::operator==().
◆ getBestState() [1/2]
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inlinestatic |
Return empty set as the best state of potential values.
Definition at line 4183 of file Attributor.h.
References llvm::PotentialValuesState< MemberTy, KeyInfo >::PotentialValuesState().
Referenced by llvm::PotentialValuesState< MemberTy, KeyInfo >::getBestState().
◆ getBestState() [2/2]
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inlinestatic |
Definition at line 4187 of file Attributor.h.
References llvm::PotentialValuesState< MemberTy, KeyInfo >::getBestState().
◆ getWorstState()
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inlinestatic |
Return full set as the worst state of potential values.
Definition at line 4192 of file Attributor.h.
References llvm::PotentialValuesState< MemberTy, KeyInfo >::PotentialValuesState().
◆ indicateOptimisticFixpoint()
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inlineoverridevirtual |
See AbstractState::indicateOptimisticFixpoint(...)
Implements llvm::AbstractState.
Definition at line 4147 of file Attributor.h.
References llvm::IntegerStateBase< base_ty, BestState, WorstState >::indicateOptimisticFixpoint().
◆ indicatePessimisticFixpoint()
|
inlineoverridevirtual |
See AbstractState::indicatePessimisticFixpoint(...)
Implements llvm::AbstractState.
Definition at line 4142 of file Attributor.h.
References llvm::IntegerStateBase< base_ty, BestState, WorstState >::indicatePessimisticFixpoint().
◆ isAtFixpoint()
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inlineoverridevirtual |
See AbstractState::isAtFixpoint(...)
Implements llvm::AbstractState.
Definition at line 4139 of file Attributor.h.
References llvm::IntegerStateBase< base_ty, BestState, WorstState >::isAtFixpoint().
◆ isValidState()
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inlineoverridevirtual |
See AbstractState::isValidState(...)
Implements llvm::AbstractState.
Definition at line 4136 of file Attributor.h.
References llvm::IntegerStateBase< base_ty, BestState, WorstState >::isValidState().
Referenced by llvm::AAPotentialValues::getAssumedConstantInt(), llvm::PotentialValuesState< MemberTy, KeyInfo >::getAssumedSet(), llvm::PotentialValuesState< MemberTy, KeyInfo >::operator==(), and llvm::PotentialValuesState< MemberTy, KeyInfo >::undefIsContained().
◆ operator&=()
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inline |
Definition at line 4212 of file Attributor.h.
References llvm::PotentialValuesState< MemberTy, KeyInfo >::unionAssumed().
◆ operator==()
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inline |
◆ operator^=()
|
inline |
"Clamp" this state with PVS.
Definition at line 4206 of file Attributor.h.
References llvm::PotentialValuesState< MemberTy, KeyInfo >::unionAssumed().
◆ undefIsContained()
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inline |
Returns whether this state contains an undef value or not.
Definition at line 4163 of file Attributor.h.
References assert(), and llvm::PotentialValuesState< MemberTy, KeyInfo >::isValidState().
Referenced by llvm::AAPotentialValues::getAssumedConstantInt(), and llvm::PotentialValuesState< MemberTy, KeyInfo >::operator==().
◆ unionAssumed() [1/2]
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inline |
Union assumed set with the passed value.
Definition at line 4197 of file Attributor.h.
Referenced by llvm::PotentialValuesState< MemberTy, KeyInfo >::operator&=(), and llvm::PotentialValuesState< MemberTy, KeyInfo >::operator^=().
◆ unionAssumed() [2/2]
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inline |
Union assumed set with assumed set of the passed state PVS.
Definition at line 4200 of file Attributor.h.
◆ unionAssumedWithUndef()
|
inline |
Union assumed set with an undef value.
Definition at line 4203 of file Attributor.h.
Member Data Documentation
◆ MaxPotentialValues
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static |
Maximum number of potential values to be tracked.
This is set by -attributor-max-potential-values command line option
Definition at line 4180 of file Attributor.h.
The documentation for this struct was generated from the following files:
- include/llvm/Transforms/IPO/Attributor.h
- lib/Transforms/IPO/AttributorAttributes.cpp
