Reduce BitSet size used in Borrows dataflow analysis

2023-05-09 18:50:13 +02:00
parent f7b831ac8a
commit 6989246645
1 changed files with 1 additions and 1 deletions
--- a/compiler/rustc_borrowck/src/dataflow.rs
+++ b/compiler/rustc_borrowck/src/dataflow.rs
@@ -328,7 +328,7 @@ impl<'tcx> rustc_mir_dataflow::AnalysisDomain<'tcx> for Borrows<'_, 'tcx> {

    fn bottom_value(&self, _: &mir::Body<'tcx>) -> Self::Domain {
        // bottom = nothing is reserved or activated yet;
-        BitSet::new_empty(self.borrow_set.len() * 2)
+        BitSet::new_empty(self.borrow_set.len())
    }

    fn initialize_start_block(&self, _: &mir::Body<'tcx>, _: &mut Self::Domain) {