rustc_mir_transform::dataflow_const_prop

Struct ConstAnalysis

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struct ConstAnalysis<'a, 'tcx> {
    map: Map<'tcx>,
    tcx: TyCtxt<'tcx>,
    local_decls: &'a LocalDecls<'tcx>,
    ecx: InterpCx<'tcx, DummyMachine>,
    param_env: ParamEnv<'tcx>,
}

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§map: Map<'tcx>§tcx: TyCtxt<'tcx>§local_decls: &'a LocalDecls<'tcx>§ecx: InterpCx<'tcx, DummyMachine>§param_env: ParamEnv<'tcx>

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impl<'a, 'tcx> ConstAnalysis<'a, 'tcx>

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fn new(tcx: TyCtxt<'tcx>, body: &'a Body<'tcx>, map: Map<'tcx>) -> Self

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fn assign_operand( &self, state: &mut State<FlatSet<Scalar>>, place: PlaceIndex, operand: &Operand<'tcx>, )

The caller must have flooded place.

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fn assign_constant( &self, state: &mut State<FlatSet<Scalar>>, place: PlaceIndex, operand: OpTy<'tcx>, projection: &[PlaceElem<'tcx>], )

The caller must have flooded place.

Perform: place = operand.projection.

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fn binary_op( &self, state: &mut State<FlatSet<Scalar>>, op: BinOp, left: &Operand<'tcx>, right: &Operand<'tcx>, ) -> (FlatSet<Scalar>, FlatSet<Scalar>)

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fn eval_operand( &self, op: &Operand<'tcx>, state: &mut State<FlatSet<Scalar>>, ) -> FlatSet<ImmTy<'tcx>>

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fn eval_discriminant( &self, enum_ty: Ty<'tcx>, variant_index: VariantIdx, ) -> Option<Scalar>

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fn wrap_immediate(&self, imm: Immediate) -> FlatSet<Scalar>

Trait Implementations§

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impl<'tcx> ValueAnalysis<'tcx> for ConstAnalysis<'_, 'tcx>

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const NAME: &'static str = "ConstAnalysis"

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type Value = FlatSet<Scalar>

For each place of interest, the analysis tracks a value of the given type.
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fn map(&self) -> &Map<'tcx>

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fn handle_set_discriminant( &self, place: Place<'tcx>, variant_index: VariantIdx, state: &mut State<Self::Value>, )

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fn handle_assign( &self, target: Place<'tcx>, rvalue: &Rvalue<'tcx>, state: &mut State<Self::Value>, )

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fn handle_rvalue( &self, rvalue: &Rvalue<'tcx>, state: &mut State<Self::Value>, ) -> ValueOrPlace<Self::Value>

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fn handle_constant( &self, constant: &ConstOperand<'tcx>, _state: &mut State<Self::Value>, ) -> Self::Value

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fn handle_switch_int<'mir>( &self, discr: &'mir Operand<'tcx>, targets: &'mir SwitchTargets, state: &mut State<Self::Value>, ) -> TerminatorEdges<'mir, 'tcx>

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fn handle_statement( &self, statement: &Statement<'tcx>, state: &mut State<Self::Value>, )

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fn super_statement( &self, statement: &Statement<'tcx>, state: &mut State<Self::Value>, )

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fn super_set_discriminant( &self, place: Place<'tcx>, _variant_index: VariantIdx, state: &mut State<Self::Value>, )

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fn handle_intrinsic( &self, intrinsic: &NonDivergingIntrinsic<'tcx>, state: &mut State<Self::Value>, )

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fn super_intrinsic( &self, intrinsic: &NonDivergingIntrinsic<'tcx>, _state: &mut State<Self::Value>, )

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fn super_assign( &self, target: Place<'tcx>, rvalue: &Rvalue<'tcx>, state: &mut State<Self::Value>, )

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fn super_rvalue( &self, rvalue: &Rvalue<'tcx>, state: &mut State<Self::Value>, ) -> ValueOrPlace<Self::Value>

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fn handle_operand( &self, operand: &Operand<'tcx>, state: &mut State<Self::Value>, ) -> ValueOrPlace<Self::Value>

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fn super_operand( &self, operand: &Operand<'tcx>, state: &mut State<Self::Value>, ) -> ValueOrPlace<Self::Value>

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fn super_constant( &self, _constant: &ConstOperand<'tcx>, _state: &mut State<Self::Value>, ) -> Self::Value

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fn handle_terminator<'mir>( &self, terminator: &'mir Terminator<'tcx>, state: &mut State<Self::Value>, ) -> TerminatorEdges<'mir, 'tcx>

The effect of a successful function call return should not be applied here, see Analysis::apply_terminator_effect.
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fn super_terminator<'mir>( &self, terminator: &'mir Terminator<'tcx>, state: &mut State<Self::Value>, ) -> TerminatorEdges<'mir, 'tcx>

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fn handle_call_return( &self, return_places: CallReturnPlaces<'_, 'tcx>, state: &mut State<Self::Value>, )

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fn super_call_return( &self, return_places: CallReturnPlaces<'_, 'tcx>, state: &mut State<Self::Value>, )

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fn super_switch_int<'mir>( &self, discr: &'mir Operand<'tcx>, targets: &'mir SwitchTargets, _state: &mut State<Self::Value>, ) -> TerminatorEdges<'mir, 'tcx>

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fn wrap(self) -> ValueAnalysisWrapper<Self>
where Self: Sized,

Auto Trait Implementations§

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impl<'a, 'tcx> DynSend for ConstAnalysis<'a, 'tcx>

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impl<'a, 'tcx> DynSync for ConstAnalysis<'a, 'tcx>

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impl<'a, 'tcx> Freeze for ConstAnalysis<'a, 'tcx>

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impl<'a, 'tcx> !RefUnwindSafe for ConstAnalysis<'a, 'tcx>

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impl<'a, 'tcx> !Send for ConstAnalysis<'a, 'tcx>

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impl<'a, 'tcx> !Sync for ConstAnalysis<'a, 'tcx>

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impl<'a, 'tcx> Unpin for ConstAnalysis<'a, 'tcx>

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impl<'a, 'tcx> !UnwindSafe for ConstAnalysis<'a, 'tcx>

Blanket Implementations§

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impl<T> Aligned for T

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const ALIGN: Alignment = _

Alignment of Self.
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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T, R> CollectAndApply<T, R> for T

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fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to f(&iter.collect::<Vec<_>>()).

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type Output = R

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impl<T> Filterable for T

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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
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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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 more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

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 more
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impl<P> IntoQueryParam<P> for P

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impl<T> MaybeResult<T> for T

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type Error = !

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fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

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fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<I, T, U> Upcast<I, U> for T
where U: UpcastFrom<I, T>,

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fn upcast(self, interner: I) -> U

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impl<I, T> UpcastFrom<I, T> for T

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fn upcast_from(from: T, _tcx: I) -> T

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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<Tcx, T> Value<Tcx> for T
where Tcx: DepContext,

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default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed, ) -> T

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<'a, T> Captures<'a> for T
where T: ?Sized,

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impl<'a, T> Captures<'a> for T
where T: ?Sized,

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impl<T> ErasedDestructor for T
where T: 'static,

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: 376 bytes