Struct rustc_mir_dataflow::Engine
source · pub struct Engine<'a, 'tcx, A>where
A: Analysis<'tcx>,{
tcx: TyCtxt<'tcx>,
body: &'a Body<'tcx>,
entry_sets: IndexVec<BasicBlock, A::Domain>,
pass_name: Option<&'static str>,
analysis: A,
apply_statement_trans_for_block: Option<Box<dyn Fn(BasicBlock, &mut A::Domain)>>,
}
Expand description
A solver for dataflow problems.
Fields§
§tcx: TyCtxt<'tcx>
§body: &'a Body<'tcx>
§entry_sets: IndexVec<BasicBlock, A::Domain>
§pass_name: Option<&'static str>
§analysis: A
§apply_statement_trans_for_block: Option<Box<dyn Fn(BasicBlock, &mut A::Domain)>>
Cached, cumulative transfer functions for each block.
Implementations§
source§impl<'a, 'tcx, A, D, T> Engine<'a, 'tcx, A>where
A: GenKillAnalysis<'tcx, Idx = T, Domain = D>,
D: Clone + JoinSemiLattice + GenKill<T> + BitSetExt<T>,
T: Idx,
impl<'a, 'tcx, A, D, T> Engine<'a, 'tcx, A>where A: GenKillAnalysis<'tcx, Idx = T, Domain = D>, D: Clone + JoinSemiLattice + GenKill<T> + BitSetExt<T>, T: Idx,
sourcepub fn new_gen_kill(
tcx: TyCtxt<'tcx>,
body: &'a Body<'tcx>,
analysis: A
) -> Self
pub fn new_gen_kill( tcx: TyCtxt<'tcx>, body: &'a Body<'tcx>, analysis: A ) -> Self
Creates a new Engine
to solve a gen-kill dataflow problem.
source§impl<'a, 'tcx, A, D> Engine<'a, 'tcx, A>where
A: Analysis<'tcx, Domain = D>,
D: Clone + JoinSemiLattice,
impl<'a, 'tcx, A, D> Engine<'a, 'tcx, A>where A: Analysis<'tcx, Domain = D>, D: Clone + JoinSemiLattice,
sourcepub fn new_generic(tcx: TyCtxt<'tcx>, body: &'a Body<'tcx>, analysis: A) -> Self
pub fn new_generic(tcx: TyCtxt<'tcx>, body: &'a Body<'tcx>, analysis: A) -> Self
Creates a new Engine
to solve a dataflow problem with an arbitrary transfer
function.
Gen-kill problems should use new_gen_kill
, which will coalesce transfer functions for
better performance.
fn new( tcx: TyCtxt<'tcx>, body: &'a Body<'tcx>, analysis: A, apply_statement_trans_for_block: Option<Box<dyn Fn(BasicBlock, &mut A::Domain)>> ) -> Self
sourcepub fn pass_name(self, name: &'static str) -> Self
pub fn pass_name(self, name: &'static str) -> Self
Adds an identifier to the graphviz output for this particular run of a dataflow analysis.
Some analyses are run multiple times in the compilation pipeline. Give them a pass_name
to differentiate them. Otherwise, only the results for the latest run will be saved.
sourcepub fn iterate_to_fixpoint(self) -> Results<'tcx, A>where
A::Domain: DebugWithContext<A>,
pub fn iterate_to_fixpoint(self) -> Results<'tcx, A>where A::Domain: DebugWithContext<A>,
Computes the fixpoint for this dataflow problem and returns it.
Auto Trait Implementations§
impl<'a, 'tcx, A> !RefUnwindSafe for Engine<'a, 'tcx, A>
impl<'a, 'tcx, A> !Send for Engine<'a, 'tcx, A>
impl<'a, 'tcx, A> !Sync for Engine<'a, 'tcx, A>
impl<'a, 'tcx, A> Unpin for Engine<'a, 'tcx, A>where A: Unpin, <A as AnalysisDomain<'tcx>>::Domain: Unpin,
impl<'a, 'tcx, A> !UnwindSafe for Engine<'a, 'tcx, A>
Blanket Implementations§
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
Layout§
Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.