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remove inefficiency for adding all points

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This commit is contained in:
Niko Matsakis 2018-07-23 18:14:16 +03:00
parent 7c74518f50
commit 52c94e9dec
1 changed files with 1 additions and 10 deletions
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11
src/librustc_mir/borrow_check/nll/region_infer/values.rs
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@ -15,7 +15,6 @@ use rustc_data_structures::indexed_vec::Idx;
use rustc_data_structures::indexed_vec::IndexVec;
use std::fmt::Debug;
use std::rc::Rc;
use std::ops::Range;
/// Maps between the various kinds of elements of a region value to
/// the internal indices that w use.
@ -65,11 +64,6 @@ impl RegionValueElements {
PointIndex::new(start_index + statement_index)
}
/// Range coverting all point indices.
fn all_points(&self) -> Range<PointIndex> {
PointIndex::new(0)..PointIndex::new(self.num_points)
}
/// Converts a particular `RegionElementIndex` to a location, if
/// that is what it represents. Returns `None` otherwise.
crate fn to_location(&self, i: PointIndex) -> Location {
@ -159,10 +153,7 @@ impl<N: Idx> RegionValues<N> {
/// Adds all the control-flow points to the values for `r`.
crate fn add_all_points(&mut self, r: N) {
// FIXME OMG so inefficient. We'll fix later.
for p in self.elements.all_points() {
self.points.add(r, p);
}
self.points.add_all(r);
}
/// Add all elements in `r_from` to `r_to` (because e.g. `r_to: