Struct rustc_mir_transform::dataflow_const_prop::ConstAnalysis

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

Fields

map: Map

tcx: TyCtxt<'tcx>

local_decls: &'a LocalDecls<'tcx>

ecx: InterpCx<'tcx, 'tcx, DummyMachine>

param_env: ParamEnv<'tcx>

Implementations

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

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

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

The caller must have flooded place.

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

The caller must have flooded place.

Perform: place = operand.projection.

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

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

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

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

Trait Implementations

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

type Value = FlatSet<Scalar<AllocId>>

For each place of interest, the analysis tracks a value of the given type.

const NAME: &'static str = "ConstAnalysis"

fn map(&self) -> &Map

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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.

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

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

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

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

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

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: 320 bytes