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Remove unnecessary things from State and Map.

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This commit is contained in:
Nicholas Nethercote 2023-11-22 14:36:44 +11:00
parent 62ffb14c3d
commit a65e68a43b
1 changed files with 4 additions and 25 deletions
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29
compiler/rustc_mir_dataflow/src/value_analysis.rs
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@ -474,26 +474,10 @@ impl<V: Clone> State<V> {
} }
} }
pub fn is_reachable(&self) -> bool { fn is_reachable(&self) -> bool {
matches!(&self.0, StateData::Reachable(_)) matches!(&self.0, StateData::Reachable(_))
} }
pub fn mark_unreachable(&mut self) {
self.0 = StateData::Unreachable;
}
pub fn flood_all(&mut self)
where
V: HasTop,
{
self.flood_all_with(V::TOP)
}
pub fn flood_all_with(&mut self, value: V) {
let StateData::Reachable(values) = &mut self.0 else { return };
values.raw.fill(value);
}
/// Assign `value` to all places that are contained in `place` or may alias one. /// Assign `value` to all places that are contained in `place` or may alias one.
pub fn flood_with(&mut self, place: PlaceRef<'_>, map: &Map, value: V) { pub fn flood_with(&mut self, place: PlaceRef<'_>, map: &Map, value: V) {
self.flood_with_tail_elem(place, None, map, value) self.flood_with_tail_elem(place, None, map, value)
@ -508,7 +492,7 @@ impl<V: Clone> State<V> {
} }
/// Assign `value` to the discriminant of `place` and all places that may alias it. /// Assign `value` to the discriminant of `place` and all places that may alias it.
pub fn flood_discr_with(&mut self, place: PlaceRef<'_>, map: &Map, value: V) { fn flood_discr_with(&mut self, place: PlaceRef<'_>, map: &Map, value: V) {
self.flood_with_tail_elem(place, Some(TrackElem::Discriminant), map, value) self.flood_with_tail_elem(place, Some(TrackElem::Discriminant), map, value)
} }
@ -544,7 +528,7 @@ impl<V: Clone> State<V> {
/// This does nothing if the place is not tracked. /// This does nothing if the place is not tracked.
/// ///
/// The target place must have been flooded before calling this method. /// The target place must have been flooded before calling this method.
pub fn insert_idx(&mut self, target: PlaceIndex, result: ValueOrPlace<V>, map: &Map) { fn insert_idx(&mut self, target: PlaceIndex, result: ValueOrPlace<V>, map: &Map) {
match result { match result {
ValueOrPlace::Value(value) => self.insert_value_idx(target, value, map), ValueOrPlace::Value(value) => self.insert_value_idx(target, value, map),
ValueOrPlace::Place(source) => self.insert_place_idx(target, source, map), ValueOrPlace::Place(source) => self.insert_place_idx(target, source, map),
@ -908,11 +892,6 @@ impl Map {
self.inner_values[root] = start..end; self.inner_values[root] = start..end;
} }
/// Returns the number of tracked places, i.e., those for which a value can be stored.
pub fn tracked_places(&self) -> usize {
self.value_count
}
/// Applies a single projection element, yielding the corresponding child. /// Applies a single projection element, yielding the corresponding child.
pub fn apply(&self, place: PlaceIndex, elem: TrackElem) -> Option<PlaceIndex> { pub fn apply(&self, place: PlaceIndex, elem: TrackElem) -> Option<PlaceIndex> {
self.projections.get(&(place, elem)).copied() self.projections.get(&(place, elem)).copied()
@ -952,7 +931,7 @@ impl Map {
} }
/// Iterate over all direct children. /// Iterate over all direct children.
pub fn children(&self, parent: PlaceIndex) -> impl Iterator<Item = PlaceIndex> + '_ { fn children(&self, parent: PlaceIndex) -> impl Iterator<Item = PlaceIndex> + '_ {
Children::new(self, parent) Children::new(self, parent)
} }