bjoernager/rust
bjoernager/rust
1
Fork 0
Code Issues Pull requests Activity

BitSet perf improvements

Browse source 
This commit makes two changes:
 1. Changes `MaybeLiveLocals` to use `ChunkedBitSet`
 2. Overrides the `fold` method for the iterator for `ChunkedBitSet`
This commit is contained in:
Jakob Degen 2022-06-05 16:22:54 -07:00
parent 02916c4c75
commit bc7cd2f351
5 changed files with 141 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

3
compiler/rustc_mir_transform/src/generator.rs
View file

@ -495,7 +495,8 @@ fn locals_live_across_suspend_points<'tcx>(
let loc = Location { block, statement_index: data.statements.len() };
liveness.seek_to_block_end(block);
let mut live_locals = liveness.get().clone();
let mut live_locals: BitSet<_> = BitSet::new_empty(body.local_decls.len());
live_locals.union(liveness.get());
if !movable {
// The `liveness` variable contains the liveness of MIR locals ignoring borrows.