Trait rustc_mir_dataflow::framework::GenKillAnalysis
source · pub trait GenKillAnalysis<'tcx>: Analysis<'tcx> {
type Idx: Idx;
fn statement_effect(
&self,
trans: &mut impl GenKill<Self::Idx>,
statement: &Statement<'tcx>,
location: Location
);
fn terminator_effect(
&self,
trans: &mut impl GenKill<Self::Idx>,
terminator: &Terminator<'tcx>,
location: Location
);
fn call_return_effect(
&self,
trans: &mut impl GenKill<Self::Idx>,
block: BasicBlock,
return_places: CallReturnPlaces<'_, 'tcx>
);
fn before_statement_effect(
&self,
_trans: &mut impl GenKill<Self::Idx>,
_statement: &Statement<'tcx>,
_location: Location
) { ... }
fn before_terminator_effect(
&self,
_trans: &mut impl GenKill<Self::Idx>,
_terminator: &Terminator<'tcx>,
_location: Location
) { ... }
fn yield_resume_effect(
&self,
_trans: &mut impl GenKill<Self::Idx>,
_resume_block: BasicBlock,
_resume_place: Place<'tcx>
) { ... }
fn switch_int_edge_effects<G: GenKill<Self::Idx>>(
&self,
_block: BasicBlock,
_discr: &Operand<'tcx>,
_edge_effects: &mut impl SwitchIntEdgeEffects<G>
) { ... }
}
Expand description
A gen/kill dataflow problem.
Each method in this trait has a corresponding one in Analysis
. However, these methods only
allow modification of the dataflow state via “gen” and “kill” operations. By defining transfer
functions for each statement in this way, the transfer function for an entire basic block can
be computed efficiently.
Analysis
is automatically implemented for all implementers of GenKillAnalysis
.
Required Associated Types
Required Methods
See Analysis::apply_statement_effect
.
sourcefn terminator_effect(
&self,
trans: &mut impl GenKill<Self::Idx>,
terminator: &Terminator<'tcx>,
location: Location
)
fn terminator_effect(
&self,
trans: &mut impl GenKill<Self::Idx>,
terminator: &Terminator<'tcx>,
location: Location
)
See Analysis::apply_terminator_effect
.
sourcefn call_return_effect(
&self,
trans: &mut impl GenKill<Self::Idx>,
block: BasicBlock,
return_places: CallReturnPlaces<'_, 'tcx>
)
fn call_return_effect(
&self,
trans: &mut impl GenKill<Self::Idx>,
block: BasicBlock,
return_places: CallReturnPlaces<'_, 'tcx>
)
See Analysis::apply_call_return_effect
.
Provided Methods
See Analysis::apply_before_statement_effect
.
sourcefn before_terminator_effect(
&self,
_trans: &mut impl GenKill<Self::Idx>,
_terminator: &Terminator<'tcx>,
_location: Location
)
fn before_terminator_effect(
&self,
_trans: &mut impl GenKill<Self::Idx>,
_terminator: &Terminator<'tcx>,
_location: Location
)
See Analysis::apply_before_terminator_effect
.
sourcefn yield_resume_effect(
&self,
_trans: &mut impl GenKill<Self::Idx>,
_resume_block: BasicBlock,
_resume_place: Place<'tcx>
)
fn yield_resume_effect(
&self,
_trans: &mut impl GenKill<Self::Idx>,
_resume_block: BasicBlock,
_resume_place: Place<'tcx>
)
See Analysis::apply_yield_resume_effect
.
sourcefn switch_int_edge_effects<G: GenKill<Self::Idx>>(
&self,
_block: BasicBlock,
_discr: &Operand<'tcx>,
_edge_effects: &mut impl SwitchIntEdgeEffects<G>
)
fn switch_int_edge_effects<G: GenKill<Self::Idx>>(
&self,
_block: BasicBlock,
_discr: &Operand<'tcx>,
_edge_effects: &mut impl SwitchIntEdgeEffects<G>
)
See Analysis::apply_switch_int_edge_effects
.