diff options
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/rustc_infer/src/infer/mod.rs | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs index 30b75e9ae75..0e30b136622 100644 --- a/compiler/rustc_infer/src/infer/mod.rs +++ b/compiler/rustc_infer/src/infer/mod.rs @@ -33,7 +33,6 @@ use rustc_span::symbol::Symbol; use rustc_span::Span; use std::cell::{Cell, Ref, RefCell}; -use std::collections::BTreeMap; use std::fmt; use self::combine::CombineFields; @@ -1532,14 +1531,14 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> { return inner; } - let mut region_map = BTreeMap::new(); + let mut region_map = FxHashMap::default(); let fld_r = |br: ty::BoundRegion| { *region_map .entry(br) .or_insert_with(|| self.next_region_var(LateBoundRegion(span, br.kind, lbrct))) }; - let mut ty_map = BTreeMap::new(); + let mut ty_map = FxHashMap::default(); let fld_t = |bt: ty::BoundTy| { *ty_map.entry(bt).or_insert_with(|| { self.next_ty_var(TypeVariableOrigin { @@ -1548,7 +1547,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> { }) }) }; - let mut ct_map = BTreeMap::new(); + let mut ct_map = FxHashMap::default(); let fld_c = |bc: ty::BoundVar, ty| { *ct_map.entry(bc).or_insert_with(|| { self.next_const_var( |