bjoernager/rust
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Auto merge of #118824 - aliemjay:perf-region-cons, r=compiler-errors

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use Vec for region constraints instead of BTreeMap

~1% perf gain

Diagnostic regressions need more investigation.

r? `@ghost`
This commit is contained in:
bors 2023-12-22 20:28:48 +00:00
commit d6d7a93866
7 changed files with 37 additions and 31 deletions
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2
compiler/rustc_trait_selection/src/traits/auto_trait.rs
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@ -477,7 +477,7 @@ impl<'tcx> AutoTraitFinder<'tcx> {
let mut vid_map: FxHashMap<RegionTarget<'cx>, RegionDeps<'cx>> = FxHashMap::default();
let mut finished_map = FxHashMap::default();
for constraint in regions.constraints.keys() {
for (constraint, _) in &regions.constraints {
match constraint {
&Constraint::VarSubVar(r1, r2) => {
{