pub struct MaybeTransitiveLiveLocals<'a> {
always_live: &'a BitSet<Local>,
}
Expand description
Like MaybeLiveLocals
, but does not mark locals as live if they are used in a dead assignment.
This is basically written for dead store elimination and nothing else.
All of the caveats of MaybeLiveLocals
apply.
Fields§
§always_live: &'a BitSet<Local>
Implementations§
Trait Implementations§
source§impl<'a, 'tcx> Analysis<'tcx> for MaybeTransitiveLiveLocals<'a>
impl<'a, 'tcx> Analysis<'tcx> for MaybeTransitiveLiveLocals<'a>
source§fn apply_statement_effect(
&mut self,
trans: &mut Self::Domain,
statement: &Statement<'tcx>,
location: Location,
)
fn apply_statement_effect( &mut self, trans: &mut Self::Domain, statement: &Statement<'tcx>, location: Location, )
Updates the current dataflow state with the effect of evaluating a statement.
source§fn apply_terminator_effect<'mir>(
&mut self,
trans: &mut Self::Domain,
terminator: &'mir Terminator<'tcx>,
location: Location,
) -> TerminatorEdges<'mir, 'tcx>
fn apply_terminator_effect<'mir>( &mut self, trans: &mut Self::Domain, terminator: &'mir Terminator<'tcx>, location: Location, ) -> TerminatorEdges<'mir, 'tcx>
Updates the current dataflow state with the effect of evaluating a terminator. Read more
source§fn apply_call_return_effect(
&mut self,
trans: &mut Self::Domain,
_block: BasicBlock,
return_places: CallReturnPlaces<'_, 'tcx>,
)
fn apply_call_return_effect( &mut self, trans: &mut Self::Domain, _block: BasicBlock, return_places: CallReturnPlaces<'_, 'tcx>, )
Updates the current dataflow state with the effect of a successful return from a
Call
terminator. Read moresource§fn apply_before_statement_effect(
&mut self,
_state: &mut Self::Domain,
_statement: &Statement<'tcx>,
_location: Location,
)
fn apply_before_statement_effect( &mut self, _state: &mut Self::Domain, _statement: &Statement<'tcx>, _location: Location, )
Updates the current dataflow state with an effect that occurs immediately before the
given statement. Read more
source§fn apply_before_terminator_effect(
&mut self,
_state: &mut Self::Domain,
_terminator: &Terminator<'tcx>,
_location: Location,
)
fn apply_before_terminator_effect( &mut self, _state: &mut Self::Domain, _terminator: &Terminator<'tcx>, _location: Location, )
Updates the current dataflow state with an effect that occurs immediately before the
given terminator. Read more
source§fn apply_switch_int_edge_effects(
&mut self,
_block: BasicBlock,
_discr: &Operand<'tcx>,
_apply_edge_effects: &mut impl SwitchIntEdgeEffects<Self::Domain>,
)
fn apply_switch_int_edge_effects( &mut self, _block: BasicBlock, _discr: &Operand<'tcx>, _apply_edge_effects: &mut impl SwitchIntEdgeEffects<Self::Domain>, )
Updates the current dataflow state with the effect of taking a particular branch in a
SwitchInt
terminator. Read moresource§impl<'a, 'tcx> AnalysisDomain<'tcx> for MaybeTransitiveLiveLocals<'a>
impl<'a, 'tcx> AnalysisDomain<'tcx> for MaybeTransitiveLiveLocals<'a>
source§type Domain = BitSet<Local>
type Domain = BitSet<Local>
The type that holds the dataflow state at any given point in the program.
source§const NAME: &'static str = "transitive liveness"
const NAME: &'static str = "transitive liveness"
A descriptive name for this analysis. Used only for debugging. Read more
source§fn bottom_value(&self, body: &Body<'tcx>) -> Self::Domain
fn bottom_value(&self, body: &Body<'tcx>) -> Self::Domain
Returns the initial value of the dataflow state upon entry to each basic block.
source§impl<'a> Clone for MaybeTransitiveLiveLocals<'a>
impl<'a> Clone for MaybeTransitiveLiveLocals<'a>
source§fn clone(&self) -> MaybeTransitiveLiveLocals<'a>
fn clone(&self) -> MaybeTransitiveLiveLocals<'a>
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moreimpl<'a> Copy for MaybeTransitiveLiveLocals<'a>
Auto Trait Implementations§
impl<'a> Freeze for MaybeTransitiveLiveLocals<'a>
impl<'a> RefUnwindSafe for MaybeTransitiveLiveLocals<'a>
impl<'a> Send for MaybeTransitiveLiveLocals<'a>
impl<'a> Sync for MaybeTransitiveLiveLocals<'a>
impl<'a> Unpin for MaybeTransitiveLiveLocals<'a>
impl<'a> UnwindSafe for MaybeTransitiveLiveLocals<'a>
Blanket Implementations§
source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'a mut [T]
source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'a mut [T]
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)source§impl<T, R> CollectAndApply<T, R> for T
impl<T, R> CollectAndApply<T, R> for T
source§impl<T> Filterable for T
impl<T> Filterable for T
source§fn filterable(
self,
filter_name: &'static str,
) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
Creates a filterable data provider with the given name for debugging. Read more
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§impl<P> IntoQueryParam<P> for P
impl<P> IntoQueryParam<P> for P
fn into_query_param(self) -> P
source§impl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
source§impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
source§impl<I, T> UpcastFrom<I, T> for T
impl<I, T> UpcastFrom<I, T> for T
fn upcast_from(from: T, _tcx: I) -> T
source§impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed, ) -> T
source§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
source§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
source§fn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
impl<T> ErasedDestructor for Twhere
T: 'static,
impl<T> MaybeSendSync for T
Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.
Size: 8 bytes